Release v0.14.0

flag.Parse() is already being called on line 28 https://github.com/42wim/matterbridge/blob/master/matterbridge.go#L28
and there is no need for calling it again

README.md

@@ -1,5 +1,6 @@
 # matterbridge
-[![Gitter](https://img.shields.io/gitter/room/nwjs/nw.js.svg)](https://gitter.im/42wim/matterbridge) [![Join the IRC chat at https://webchat.freenode.net/?channels=matterbridgechat](https://img.shields.io/badge/IRC-matterbridgechat-green.svg)](https://webchat.freenode.net/?channels=matterbridgechat)   
+[![Gitter](https://img.shields.io/gitter/room/nwjs/nw.js.svg)](https://gitter.im/42wim/matterbridge) [![Join the IRC chat at https://webchat.freenode.net/?channels=matterbridgechat](https://img.shields.io/badge/IRC-matterbridgechat-green.svg)](https://webchat.freenode.net/?channels=matterbridgechat) [![Discord](https://img.shields.io/badge/discord-matterbridge-green.svg)](https://discord.gg/AkKPtrQ) [![Matrix](https://img.shields.io/badge/matrix-matterbridge-green.svg)](https://riot.im/app/#/room/#matterbridge:matrix.org)
+
 ![matterbridge.gif](https://s15.postimg.org/qpjhp6y3f/matterbridge.gif)
 
 Simple bridge between Mattermost, IRC, XMPP, Gitter, Slack, Discord, Telegram, Rocket.Chat, Hipchat(via xmpp) and Matrix with REST API.
@@ -27,7 +28,7 @@ Simple bridge between Mattermost, IRC, XMPP, Gitter, Slack, Discord, Telegram, R
 
 # Requirements
 Accounts to one of the supported bridges
-* [Mattermost](https://github.com/mattermost/platform/) 3.5.x - 3.7.x
+* [Mattermost](https://github.com/mattermost/platform/) 3.5.x - 3.10.x
 * [IRC](http://www.mirc.com/servers.html)
 * [XMPP](https://jabber.org)
 * [Gitter](https://gitter.im)
@@ -41,7 +42,7 @@ Accounts to one of the supported bridges
 # Installing
 ## Binaries
 Binaries can be found [here] (https://github.com/42wim/matterbridge/releases/)
-* Latest release [v0.10.0](https://github.com/42wim/matterbridge/releases/tag/v0.10.0)
+* Latest stable release [v0.14.0](https://github.com/42wim/matterbridge/releases/latest)
 
 ## Building
 Go 1.6+ is required. Make sure you have [Go](https://golang.org/doc/install) properly installed, including setting up your [GOPATH] (https://golang.org/doc/code.html#GOPATH)
@@ -93,10 +94,13 @@ enable=true
 
 ### Bridge slack (#general) - discord (general)
 ```
+[slack]
 [slack.test]
+useAPI=true
 Token="yourslacktoken"
 PrefixMessagesWithNick=true
 
+[discord]
 [discord.test]
 Token="yourdiscordtoken"
 Server="yourdiscordservername"
@@ -118,9 +122,11 @@ RemoteNickFormat="[{PROTOCOL}/{BRIDGE}] <{NICK}> "
 ```
 
 # Running
-1) Copy the matterbridge.toml.sample to matterbridge.toml in the same directory as the matterbridge binary.  
+1) Copy the matterbridge.toml.sample to matterbridge.toml 
 2) Edit matterbridge.toml with the settings for your environment. 
-3) Now you can run matterbridge.  (```./matterbridge```)
+3) Now you can run matterbridge.  (```./matterbridge```)   
+
+(Matterbridge will only look for the config file in your current directory, if it isn't there specify -conf "/path/toyour/matterbridge.toml")
 
 ```
 Usage of ./matterbridge:
@@ -128,6 +134,8 @@ Usage of ./matterbridge:
         config file (default "matterbridge.toml")
   -debug
         enable debug
+  -gops
+        enable gops agent
   -version
         show version
 ```
@@ -161,6 +169,7 @@ Matterbridge wouldn't exist without these libraries:
 * discord - https://github.com/bwmarrin/discordgo
 * echo - https://github.com/labstack/echo
 * gitter - https://github.com/sromku/go-gitter
+* gops - https://github.com/google/gops
 * irc - https://github.com/thoj/go-ircevent
 * mattermost - https://github.com/mattermost/platform
 * matrix - https://github.com/matrix-org/gomatrix

bridge/api/api.go

@@ -4,6 +4,7 @@ import (
 	"github.com/42wim/matterbridge/bridge/config"
 	log "github.com/Sirupsen/logrus"
 	"github.com/labstack/echo"
+	"github.com/labstack/echo/middleware"
 	"github.com/zfjagann/golang-ring"
 	"net/http"
 	"sync"
@@ -21,6 +22,7 @@ type ApiMessage struct {
 	Text     string `json:"text"`
 	Username string `json:"username"`
 	Avatar   string `json:"avatar"`
+	Gateway  string `json:"gateway"`
 }
 
 var flog *log.Entry
@@ -38,6 +40,11 @@ func New(cfg config.Protocol, account string, c chan config.Message) *Api {
 	b.Config = &cfg
 	b.Account = account
 	b.Remote = c
+	if b.Config.Token != "" {
+		e.Use(middleware.KeyAuth(func(key string, c echo.Context) (bool, error) {
+			return key == b.Config.Token, nil
+		}))
+	}
 	e.GET("/api/messages", b.handleMessages)
 	e.POST("/api/message", b.handlePostMessage)
 	go func() {
@@ -70,12 +77,15 @@ func (b *Api) handlePostMessage(c echo.Context) error {
 	if err := c.Bind(message); err != nil {
 		return err
 	}
+	flog.Debugf("Sending message from %s on %s to gateway", message.Username, "api")
 	b.Remote <- config.Message{
 		Text:     message.Text,
 		Username: message.Username,
 		Channel:  "api",
 		Avatar:   message.Avatar,
 		Account:  b.Account,
+		Gateway:  message.Gateway,
+		Protocol: "api",
 	}
 	return c.JSON(http.StatusOK, message)
 }
@@ -83,9 +93,7 @@ func (b *Api) handlePostMessage(c echo.Context) error {
 func (b *Api) handleMessages(c echo.Context) error {
 	b.Lock()
 	defer b.Unlock()
-	for _, msg := range b.Messages.Values() {
-		c.JSONPretty(http.StatusOK, msg, " ")
-	}
+	c.JSONPretty(http.StatusOK, b.Messages.Values(), " ")
 	b.Messages = ring.Ring{}
 	return nil
 }

bridge/bridge.go

@@ -27,23 +27,23 @@ type Bridger interface {
 type Bridge struct {
 	Config config.Protocol
 	Bridger
-	Name        string
-	Account     string
-	Protocol    string
-	ChannelsIn  map[string]config.ChannelOptions
-	ChannelsOut map[string]config.ChannelOptions
+	Name     string
+	Account  string
+	Protocol string
+	Channels map[string]config.ChannelInfo
+	Joined   map[string]bool
 }
 
 func New(cfg *config.Config, bridge *config.Bridge, c chan config.Message) *Bridge {
 	b := new(Bridge)
-	b.ChannelsIn = make(map[string]config.ChannelOptions)
-	b.ChannelsOut = make(map[string]config.ChannelOptions)
+	b.Channels = make(map[string]config.ChannelInfo)
 	accInfo := strings.Split(bridge.Account, ".")
 	protocol := accInfo[0]
 	name := accInfo[1]
 	b.Name = name
 	b.Protocol = protocol
 	b.Account = bridge.Account
+	b.Joined = make(map[string]bool)
 
 	// override config from environment
 	config.OverrideCfgFromEnv(cfg, protocol, name)
@@ -83,33 +83,28 @@ func New(cfg *config.Config, bridge *config.Bridge, c chan config.Message) *Brid
 }
 
 func (b *Bridge) JoinChannels() error {
-	exists := make(map[string]bool)
-	err := b.joinChannels(b.ChannelsIn, exists)
-	if err != nil {
-		return err
-	}
-	err = b.joinChannels(b.ChannelsOut, exists)
+	err := b.joinChannels(b.Channels, b.Joined)
 	if err != nil {
 		return err
 	}
 	return nil
 }
 
-func (b *Bridge) joinChannels(cMap map[string]config.ChannelOptions, exists map[string]bool) error {
+func (b *Bridge) joinChannels(channels map[string]config.ChannelInfo, exists map[string]bool) error {
 	mychannel := ""
-	for channel, info := range cMap {
-		if !exists[channel] {
-			mychannel = channel
-			log.Infof("%s: joining %s", b.Account, channel)
-			if b.Protocol == "irc" && info.Key != "" {
-				log.Debugf("using key %s for channel %s", info.Key, channel)
-				mychannel = mychannel + " " + info.Key
+	for ID, channel := range channels {
+		if !exists[ID] {
+			mychannel = channel.Name
+			log.Infof("%s: joining %s (%s)", b.Account, channel.Name, ID)
+			if b.Protocol == "irc" && channel.Options.Key != "" {
+				log.Debugf("using key %s for channel %s", channel.Options.Key, channel.Name)
+				mychannel = mychannel + " " + channel.Options.Key
 			}
 			err := b.JoinChannel(mychannel)
 			if err != nil {
 				return err
 			}
-			exists[channel] = true
+			exists[ID] = true
 		}
 	}
 	return nil

bridge/config/config.go

@@ -10,24 +10,38 @@ import (
 )
 
 const (
-	EVENT_JOIN_LEAVE = "join_leave"
-	EVENT_FAILURE    = "failure"
+	EVENT_JOIN_LEAVE      = "join_leave"
+	EVENT_FAILURE         = "failure"
+	EVENT_REJOIN_CHANNELS = "rejoin_channels"
 )
 
 type Message struct {
-	Text      string
-	Channel   string
-	Username  string
-	Avatar    string
-	Account   string
-	Event     string
-	Protocol  string
-	Timestamp time.Time
+	Text      string    `json:"text"`
+	Channel   string    `json:"channel"`
+	Username  string    `json:"username"`
+	Avatar    string    `json:"avatar"`
+	Account   string    `json:"account"`
+	Event     string    `json:"event"`
+	Protocol  string    `json:"protocol"`
+	Gateway   string    `json:"gateway"`
+	Timestamp time.Time `json:"timestamp"`
+}
+
+type ChannelInfo struct {
+	Name        string
+	Account     string
+	Direction   string
+	ID          string
+	GID         map[string]bool
+	SameChannel map[string]bool
+	Options     ChannelOptions
 }
 
 type Protocol struct {
 	BindAddress            string // mattermost, slack
 	Buffer                 int    // api
+	EditSuffix             string // mattermost, slack, discord, telegram, gitter
+	EditDisable            bool   // mattermost, slack, discord, telegram, gitter
 	IconURL                string // mattermost, slack
 	IgnoreNicks            string // all protocols
 	Jid                    string // xmpp
@@ -39,23 +53,26 @@ type Protocol struct {
 	NickServNick           string // IRC
 	NickServPassword       string // IRC
 	NicksPerRow            int    // mattermost, slack
+	NoHomeServerSuffix     bool   // matrix
 	NoTLS                  bool   // mattermost
 	Password               string // IRC,mattermost,XMPP,matrix
 	PrefixMessagesWithNick bool   // mattemost, slack
 	Protocol               string //all protocols
 	MessageQueue           int    // IRC, size of message queue for flood control
 	MessageDelay           int    // IRC, time in millisecond to wait between messages
+	MessageLength          int    // IRC, max length of a message allowed
 	MessageFormat          string // telegram
 	RemoteNickFormat       string // all protocols
 	Server                 string // IRC,mattermost,XMPP,discord
 	ShowJoinPart           bool   // all protocols
 	SkipTLSVerify          bool   // IRC, mattermost
 	Team                   string // mattermost
-	Token                  string // gitter, slack, discord
+	Token                  string // gitter, slack, discord, api
 	URL                    string // mattermost, slack, matrix
 	UseAPI                 bool   // mattermost, slack
 	UseSASL                bool   // IRC
 	UseTLS                 bool   // IRC
+	UseFirstName           bool   // telegram
 }
 
 type ChannelOptions struct {
@@ -63,9 +80,10 @@ type ChannelOptions struct {
 }
 
 type Bridge struct {
-	Account string
-	Channel string
-	Options ChannelOptions
+	Account     string
+	Channel     string
+	Options     ChannelOptions
+	SameChannel bool
 }
 
 type Gateway struct {

bridge/discord/discord.go

@@ -4,6 +4,7 @@ import (
 	"github.com/42wim/matterbridge/bridge/config"
 	log "github.com/Sirupsen/logrus"
 	"github.com/bwmarrin/discordgo"
+	"regexp"
 	"strings"
 	"sync"
 )
@@ -51,6 +52,7 @@ func (b *bdiscord) Connect() error {
 	flog.Info("Connection succeeded")
 	b.c.AddHandler(b.messageCreate)
 	b.c.AddHandler(b.memberUpdate)
+	b.c.AddHandler(b.messageUpdate)
 	err = b.c.Open()
 	if err != nil {
 		flog.Debugf("%#v", err)
@@ -103,6 +105,18 @@ func (b *bdiscord) Send(msg config.Message) error {
 	return nil
 }
 
+func (b *bdiscord) messageUpdate(s *discordgo.Session, m *discordgo.MessageUpdate) {
+	if b.Config.EditDisable {
+		return
+	}
+	// only when message is actually edited
+	if m.Message.EditedTimestamp != "" {
+		flog.Debugf("Sending edit message")
+		m.Content = m.Content + b.Config.EditSuffix
+		b.messageCreate(s, (*discordgo.MessageCreate)(m))
+	}
+}
+
 func (b *bdiscord) messageCreate(s *discordgo.Session, m *discordgo.MessageCreate) {
 	// not relay our own messages
 	if m.Author.Username == b.Nick {
@@ -125,6 +139,8 @@ func (b *bdiscord) messageCreate(s *discordgo.Session, m *discordgo.MessageCreat
 	if len(m.MentionRoles) > 0 {
 		m.Message.Content = b.replaceRoleMentions(m.Message.Content)
 	}
+	m.Message.Content = b.stripCustomoji(m.Message.Content)
+	m.Message.Content = b.replaceChannelMentions(m.Message.Content)
 	b.Remote <- config.Message{Username: username, Text: m.ContentWithMentionsReplaced(), Channel: channelName,
 		Account: b.Account, Avatar: "https://cdn.discordapp.com/avatars/" + m.Author.ID + "/" + m.Author.Avatar + ".jpg"}
 }
@@ -143,12 +159,14 @@ func (b *bdiscord) getNick(user *discordgo.User) string {
 	b.Lock()
 	defer b.Unlock()
 	if _, ok := b.userMemberMap[user.ID]; ok {
-		if b.userMemberMap[user.ID].Nick != "" {
-			// only return if nick is set
-			return b.userMemberMap[user.ID].Nick
+		if b.userMemberMap[user.ID] != nil {
+			if b.userMemberMap[user.ID].Nick != "" {
+				// only return if nick is set
+				return b.userMemberMap[user.ID].Nick
+			}
+			// otherwise return username
+			return user.Username
 		}
-		// otherwise return username
-		return user.Username
 	}
 	// if we didn't find nick, search for it
 	b.userMemberMap[user.ID], err = b.c.GuildMember(b.guildID, user.ID)
@@ -195,3 +213,28 @@ func (b *bdiscord) replaceRoleMentions(text string) string {
 	}
 	return text
 }
+
+func (b *bdiscord) replaceChannelMentions(text string) string {
+	var err error
+	re := regexp.MustCompile("<#[0-9]+>")
+	text = re.ReplaceAllStringFunc(text, func(m string) string {
+		channel := b.getChannelName(m[2 : len(m)-1])
+		// if at first don't succeed, try again
+		if channel == "" {
+			b.Channels, err = b.c.GuildChannels(b.guildID)
+			if err != nil {
+				return "#unknownchannel"
+			}
+			channel = b.getChannelName(m[2 : len(m)-1])
+			return "#" + channel
+		}
+		return "#" + channel
+	})
+	return text
+}
+
+func (b *bdiscord) stripCustomoji(text string) string {
+	// <:doge:302803592035958784>
+	re := regexp.MustCompile("<(:.*?:)[0-9]+>")
+	return re.ReplaceAllString(text, `$1`)
+}

bridge/gitter/gitter.go

@@ -58,8 +58,9 @@ func (b *Bgitter) JoinChannel(channel string) error {
 	}
 	room, err := b.c.GetRoom(roomID)
 	if err != nil {
-		b.Rooms = append(b.Rooms, *room)
+		return err
 	}
+	b.Rooms = append(b.Rooms, *room)
 	user, err := b.c.GetUser()
 	if err != nil {
 		return err

bridge/irc/irc.go

@@ -46,6 +46,9 @@ func New(cfg config.Protocol, account string, c chan config.Message) *Birc {
 	if b.Config.MessageQueue == 0 {
 		b.Config.MessageQueue = 30
 	}
+	if b.Config.MessageLength == 0 {
+		b.Config.MessageLength = 400
+	}
 	return b
 }
 
@@ -92,7 +95,7 @@ func (b *Birc) Connect() error {
 }
 
 func (b *Birc) Disconnect() error {
-	b.i.Disconnect()
+	//b.i.Disconnect()
 	close(b.Local)
 	return nil
 }
@@ -109,9 +112,11 @@ func (b *Birc) Send(msg config.Message) error {
 	}
 	if strings.HasPrefix(msg.Text, "!") {
 		b.Command(&msg)
-		return nil
 	}
 	for _, text := range strings.Split(msg.Text, "\n") {
+		if len(text) > b.Config.MessageLength {
+			text = text[:b.Config.MessageLength] + " <message clipped>"
+		}
 		if len(b.Local) < b.Config.MessageQueue {
 			if len(b.Local) == b.Config.MessageQueue-1 {
 				text = text + " <message clipped>"
@@ -167,14 +172,19 @@ func (b *Birc) handleNewConnection(event *irc.Event) {
 	i.AddCallback("JOIN", b.handleJoinPart)
 	i.AddCallback("PART", b.handleJoinPart)
 	i.AddCallback("QUIT", b.handleJoinPart)
+	i.AddCallback("KICK", b.handleJoinPart)
 	i.AddCallback("*", b.handleOther)
 	// we are now fully connected
 	b.connected <- struct{}{}
 }
 
 func (b *Birc) handleJoinPart(event *irc.Event) {
-	flog.Debugf("Sending JOIN_LEAVE event from %s to gateway", b.Account)
 	channel := event.Arguments[0]
+	if event.Code == "KICK" {
+		flog.Infof("Got kicked from %s by %s", channel, event.Nick)
+		b.Remote <- config.Message{Username: "system", Text: "rejoin", Channel: channel, Account: b.Account, Event: config.EVENT_REJOIN_CHANNELS}
+		return
+	}
 	if event.Code == "QUIT" {
 		if event.Nick == b.Nick && strings.Contains(event.Raw, "Ping timeout") {
 			flog.Infof("%s reconnecting ..", b.Account)
@@ -182,6 +192,7 @@ func (b *Birc) handleJoinPart(event *irc.Event) {
 			return
 		}
 	}
+	flog.Debugf("Sending JOIN_LEAVE event from %s to gateway", b.Account)
 	b.Remote <- config.Message{Username: "system", Text: event.Nick + " " + strings.ToLower(event.Code) + "s", Channel: channel, Account: b.Account, Event: config.EVENT_JOIN_LEAVE}
 	flog.Debugf("handle %#v", event)
 }

bridge/matrix/matrix.go

@@ -1,10 +1,12 @@
 package bmatrix
 
 import (
+	"regexp"
+	"sync"
+
 	"github.com/42wim/matterbridge/bridge/config"
 	log "github.com/Sirupsen/logrus"
 	matrix "github.com/matrix-org/gomatrix"
-	"sync"
 )
 
 type Bmatrix struct {
@@ -101,8 +103,13 @@ func (b *Bmatrix) handlematrix() error {
 				flog.Debugf("Unknown room %s", ev.RoomID)
 				return
 			}
+			username := ev.Sender[1:]
+			if b.Config.NoHomeServerSuffix {
+				re := regexp.MustCompile("(.*?):.*")
+				username = re.ReplaceAllString(username, `$1`)
+			}
 			flog.Debugf("Sending message from %s on %s to gateway", ev.Sender, b.Account)
-			b.Remote <- config.Message{Username: ev.Sender, Text: ev.Content["body"].(string), Channel: channel, Account: b.Account}
+			b.Remote <- config.Message{Username: username, Text: ev.Content["body"].(string), Channel: channel, Account: b.Account}
 		}
 		flog.Debugf("Received: %#v", ev)
 	})

bridge/mattermost/mattermost.go

@@ -72,6 +72,7 @@ func (b *Bmattermost) Connect() error {
 		flog.Info("Connection succeeded")
 		b.TeamId = b.mc.GetTeamId()
 		go b.mc.WsReceiver()
+		go b.mc.StatusLoop()
 	}
 	go b.handleMatter()
 	return nil
@@ -96,15 +97,11 @@ func (b *Bmattermost) Send(msg config.Message) error {
 	channel := msg.Channel
 
 	if b.Config.PrefixMessagesWithNick {
-		/*if IsMarkup(message) {
-			message = nick + "\n\n" + message
-		} else {
-		*/
-		message = nick + " " + message
-		//}
+		message = nick + message
 	}
 	if !b.Config.UseAPI {
 		matterMessage := matterhook.OMessage{IconURL: b.Config.IconURL}
+		matterMessage.IconURL = msg.Avatar
 		matterMessage.Channel = channel
 		matterMessage.UserName = nick
 		matterMessage.Type = ""
@@ -136,14 +133,26 @@ func (b *Bmattermost) handleMatter() {
 
 func (b *Bmattermost) handleMatterClient(mchan chan *MMMessage) {
 	for message := range b.mc.MessageChan {
+		flog.Debugf("%#v", message.Raw.Data)
+		if message.Type == "system_join_leave" ||
+			message.Type == "system_join_channel" ||
+			message.Type == "system_leave_channel" {
+			flog.Debugf("Sending JOIN_LEAVE event from %s to gateway", b.Account)
+			b.Remote <- config.Message{Username: "system", Text: message.Text, Channel: message.Channel, Account: b.Account, Event: config.EVENT_JOIN_LEAVE}
+			continue
+		}
 		// do not post our own messages back to irc
 		// only listen to message from our team
-		if message.Raw.Event == "posted" && b.mc.User.Username != message.Username && message.Raw.Data["team_id"].(string) == b.TeamId {
+		if (message.Raw.Event == "posted" || message.Raw.Event == "post_edited") &&
+			b.mc.User.Username != message.Username && message.Raw.Data["team_id"].(string) == b.TeamId {
 			flog.Debugf("Receiving from matterclient %#v", message)
 			m := &MMMessage{}
 			m.Username = message.Username
 			m.Channel = message.Channel
 			m.Text = message.Text
+			if message.Raw.Event == "post_edited" && !b.Config.EditDisable {
+				m.Text = message.Text + b.Config.EditSuffix
+			}
 			if len(message.Post.FileIds) > 0 {
 				for _, link := range b.mc.GetPublicLinks(message.Post.FileIds) {
 					m.Text = m.Text + "\n" + link

bridge/slack/slack.go

@@ -73,9 +73,15 @@ func (b *Bslack) Disconnect() error {
 func (b *Bslack) JoinChannel(channel string) error {
 	// we can only join channels using the API
 	if b.Config.UseAPI {
+		if strings.HasPrefix(b.Config.Token, "xoxb") {
+			// TODO check if bot has already joined channel
+			return nil
+		}
 		_, err := b.sc.JoinChannel(channel)
 		if err != nil {
-			return err
+			if err.Error() != "name_taken" {
+				return err
+			}
 		}
 	}
 	return nil
@@ -83,9 +89,6 @@ func (b *Bslack) JoinChannel(channel string) error {
 
 func (b *Bslack) Send(msg config.Message) error {
 	flog.Debugf("Receiving %#v", msg)
-	if msg.Account == b.Account {
-		return nil
-	}
 	nick := msg.Username
 	message := msg.Text
 	channel := msg.Channel
@@ -195,6 +198,11 @@ func (b *Bslack) handleSlackClient(mchan chan *MMMessage) {
 			// ignore first message
 			if count > 0 {
 				flog.Debugf("Receiving from slackclient %#v", ev)
+				if !b.Config.EditDisable && ev.SubMessage != nil {
+					flog.Debugf("SubMessage %#v", ev.SubMessage)
+					ev.User = ev.SubMessage.User
+					ev.Text = ev.SubMessage.Text + b.Config.EditSuffix
+				}
 				// use our own func because rtm.GetChannelInfo doesn't work for private channels
 				channel, err := b.getChannelByID(ev.Channel)
 				if err != nil {

bridge/telegram/telegram.go

@@ -76,32 +76,41 @@ func (b *Btelegram) Send(msg config.Message) error {
 }
 
 func (b *Btelegram) handleRecv(updates <-chan tgbotapi.Update) {
-	username := ""
-	text := ""
-	channel := ""
 	for update := range updates {
+		var message *tgbotapi.Message
+		username := ""
+		channel := ""
+		text := ""
 		// handle channels
 		if update.ChannelPost != nil {
-			if update.ChannelPost.From != nil {
-				username = update.ChannelPost.From.FirstName
-				if username == "" {
-					username = update.ChannelPost.From.UserName
-				}
-			}
-			text = update.ChannelPost.Text
-			channel = strconv.FormatInt(update.ChannelPost.Chat.ID, 10)
+			message = update.ChannelPost
+		}
+		if update.EditedChannelPost != nil && !b.Config.EditDisable {
+			message = update.EditedChannelPost
+			message.Text = message.Text + b.Config.EditSuffix
 		}
 		// handle groups
 		if update.Message != nil {
-			if update.Message.From != nil {
-				username = update.Message.From.FirstName
+			message = update.Message
+		}
+		if update.EditedMessage != nil && !b.Config.EditDisable {
+			message = update.EditedMessage
+			message.Text = message.Text + b.Config.EditSuffix
+		}
+		if message.From != nil {
+			if b.Config.UseFirstName {
+				username = message.From.FirstName
+			}
+			if username == "" {
+				username = message.From.UserName
 				if username == "" {
-					username = update.Message.From.UserName
+					username = message.From.FirstName
 				}
 			}
-			text = update.Message.Text
-			channel = strconv.FormatInt(update.Message.Chat.ID, 10)
+			text = message.Text
+			channel = strconv.FormatInt(message.Chat.ID, 10)
 		}
+
 		if username == "" {
 			username = "unknown"
 		}

bridge/xmpp/xmpp.go

@@ -119,7 +119,7 @@ func (b *Bxmpp) handleXmpp() error {
 			var channel, nick string
 			if v.Type == "groupchat" {
 				s := strings.Split(v.Remote, "@")
-				if len(s) == 2 {
+				if len(s) >= 2 {
 					channel = s[0]
 				}
 				s = strings.Split(s[1], "/")

changelog.md

@@ -1,3 +1,97 @@
+# v0.14.0
+## New features
+* api: add token authentication
+* mattermost: add support for mattermost 3.10.0
+
+## Changes
+* api: gateway name is added in JSON messages
+* api: lowercase JSON keys
+* api: channel name isn't needed in config #195
+
+## Bugfix
+* discord: Add hashtag to channelname (when translating from id) (discord)
+* mattermost: Fix a panic. #186
+* mattermost: use teamid cache if possible. Fixes a panic
+* api: post valid json. #185
+* api: allow reuse of api in different gateways. #189
+* general: Fix utf-8 issues for {NOPINGNICK}. #193
+
+# v0.13.0
+## New features
+* irc: Limit message length. ```MessageLength=400```
+  Maximum length of message sent to irc server. If it exceeds <message clipped> will be add to the message.
+* irc: Add NOPINGNICK option. 
+  The string "{NOPINGNICK}" (case sensitive) will be replaced by the actual nick / username, but with a ZWSP inside the nick, so the irc user with the same nick won't get pinged.   
+  See https://github.com/42wim/matterbridge/issues/175 for more information
+
+## Bugfix
+* slack: Fix sending to different channels on same account (slack). Closes #177
+* telegram: Fix incorrect usernames being sent. Closes #181
+
+
+# v0.12.1
+## New features
+* telegram: Add UseFirstName option (telegram). Closes #144
+* matrix: Add NoHomeServerSuffix. Option to disable homeserver on username (matrix). Closes #160.
+
+## Bugfix
+* xmpp: Add Compatibility for Cisco Jabber (xmpp) (#166)
+* irc: Fix JoinChannel argument to use IRC channel key (#172)
+* discord: Fix possible crash on nil (discord)
+* discord: Replace long ids in channel metions (discord). Fixes #174
+
+# v0.12.0
+## Changes
+* general: edited messages are now being sent by default on discord/mattermost/telegram/slack. See "New Features"
+
+## New features
+* general: add support for edited messages. 
+  Add new keyword EditDisable (false/true), default false. Which means by default edited messages will be sent to other bridges.
+  Add new keyword EditSuffix , default "". You can change this eg to "(edited)", this will be appended to every edit message.
+* mattermost: support mattermost v3.9.x
+* general: Add support for HTTP{S}_PROXY env variables (#162)
+* discord: Strip custom emoji metadata (discord). Closes #148
+
+## Bugfix
+* slack: Ignore error on private channel join (slack) Fixes #150 
+* mattermost: fix crash on reconnects when server is down. Closes #163
+* irc: Relay messages starting with ! (irc). Closes #164
+
+# v0.11.0
+## New features
+* general: reusing the same account on multiple gateways now also reuses the connection.
+  This is particuarly useful for irc. See #87
+* general: the Name is now REQUIRED and needs to be UNIQUE for each gateway configuration
+* telegram:  Support edited messages (telegram). See #141
+* mattermost: Add support for showing/hiding join/leave messages from mattermost. Closes #147
+* mattermost: Reconnect on session removal/timeout (mattermost)
+* mattermost: Support mattermost v3.8.x
+* irc:  Rejoin channel when kicked (irc).
+
+## Bugfix
+* mattermost: Remove space after nick (mattermost). Closes #142
+* mattermost: Modify iconurl correctly (mattermost).
+* irc: Fix join/leave regression (irc)
+
+# v0.10.3
+## Bugfix
+* slack: Allow bot tokens for now without warning (slack). Closes #140 (fixes user_is_bot message on channel join)
+
+# v0.10.2
+## New features
+* general: gops agent added. Allows for more debugging. See #134
+* general: toml inline table support added for config file
+
+## Bugfix
+* all: vendored libs updated
+
+## Changes
+* general: add more informative messages on startup
+
+# v0.10.1
+## Bugfix
+* gitter: Fix sending messages on new channel join.
+
 # v0.10.0
 ## New features
 * matrix: New protocol support added (https://matrix.org)

gateway/gateway.go

@@ -5,7 +5,6 @@ import (
 	"github.com/42wim/matterbridge/bridge"
 	"github.com/42wim/matterbridge/bridge/config"
 	log "github.com/Sirupsen/logrus"
-	"reflect"
 	"strings"
 	"time"
 )
@@ -14,21 +13,21 @@ type Gateway struct {
 	*config.Config
 	MyConfig        *config.Gateway
 	Bridges         map[string]*bridge.Bridge
-	ChannelsOut     map[string][]string
-	ChannelsIn      map[string][]string
+	Channels        map[string]*config.ChannelInfo
 	ChannelOptions  map[string]config.ChannelOptions
+	Names           map[string]bool
 	Name            string
 	Message         chan config.Message
-	DestChannelFunc func(msg *config.Message, dest string) []string
+	DestChannelFunc func(msg *config.Message, dest bridge.Bridge) []config.ChannelInfo
 }
 
-func New(cfg *config.Config, gateway *config.Gateway) *Gateway {
+func New(cfg *config.Config) *Gateway {
 	gw := &Gateway{}
-	gw.Name = gateway.Name
 	gw.Config = cfg
-	gw.MyConfig = gateway
+	gw.Channels = make(map[string]*config.ChannelInfo)
 	gw.Message = make(chan config.Message)
 	gw.Bridges = make(map[string]*bridge.Bridge)
+	gw.Names = make(map[string]bool)
 	gw.DestChannelFunc = gw.getDestChannel
 	return gw
 }
@@ -36,13 +35,17 @@ func New(cfg *config.Config, gateway *config.Gateway) *Gateway {
 func (gw *Gateway) AddBridge(cfg *config.Bridge) error {
 	for _, br := range gw.Bridges {
 		if br.Account == cfg.Account {
+			gw.mapChannelsToBridge(br)
+			err := br.JoinChannels()
+			if err != nil {
+				return fmt.Errorf("Bridge %s failed to join channel: %v", br.Account, err)
+			}
 			return nil
 		}
 	}
 	log.Infof("Starting bridge: %s ", cfg.Account)
 	br := bridge.New(gw.Config, cfg, gw.Message)
-	gw.mapChannelsToBridge(br, gw.ChannelsOut)
-	gw.mapChannelsToBridge(br, gw.ChannelsIn)
+	gw.mapChannelsToBridge(br)
 	gw.Bridges[cfg.Account] = br
 	err := br.Connect()
 	if err != nil {
@@ -55,17 +58,17 @@ func (gw *Gateway) AddBridge(cfg *config.Bridge) error {
 	return nil
 }
 
-func (gw *Gateway) mapChannelsToBridge(br *bridge.Bridge, cMap map[string][]string) {
-	for _, channel := range cMap[br.Account] {
-		if _, ok := gw.ChannelOptions[br.Account+channel]; ok {
-			br.ChannelsOut[channel] = gw.ChannelOptions[br.Account+channel]
-		} else {
-			br.ChannelsOut[channel] = config.ChannelOptions{}
-		}
+func (gw *Gateway) AddConfig(cfg *config.Gateway) error {
+	if gw.Names[cfg.Name] {
+		return fmt.Errorf("Gateway with name %s already exists", cfg.Name)
 	}
-}
-
-func (gw *Gateway) Start() error {
+	if cfg.Name == "" {
+		return fmt.Errorf("%s", "Gateway without name found")
+	}
+	log.Infof("Starting gateway: %s", cfg.Name)
+	gw.Names[cfg.Name] = true
+	gw.Name = cfg.Name
+	gw.MyConfig = cfg
 	gw.mapChannels()
 	for _, br := range append(gw.MyConfig.In, append(gw.MyConfig.InOut, gw.MyConfig.Out...)...) {
 		err := gw.AddBridge(&br)
@@ -73,6 +76,18 @@ func (gw *Gateway) Start() error {
 			return err
 		}
 	}
+	return nil
+}
+
+func (gw *Gateway) mapChannelsToBridge(br *bridge.Bridge) {
+	for ID, channel := range gw.Channels {
+		if br.Account == channel.Account {
+			br.Channels[ID] = *channel
+		}
+	}
+}
+
+func (gw *Gateway) Start() error {
 	go gw.handleReceive()
 	return nil
 }
@@ -88,6 +103,15 @@ func (gw *Gateway) handleReceive() {
 					}
 				}
 			}
+			if msg.Event == config.EVENT_REJOIN_CHANNELS {
+				for _, br := range gw.Bridges {
+					if msg.Account == br.Account {
+						br.Joined = make(map[string]bool)
+						br.JoinChannels()
+					}
+				}
+				continue
+			}
 			if !gw.ignoreMessage(&msg) {
 				msg.Timestamp = time.Now()
 				for _, br := range gw.Bridges {
@@ -109,45 +133,58 @@ RECONNECT:
 		time.Sleep(time.Second * 60)
 		goto RECONNECT
 	}
+	br.Joined = make(map[string]bool)
 	br.JoinChannels()
 }
 
 func (gw *Gateway) mapChannels() error {
-	options := make(map[string]config.ChannelOptions)
-	m := make(map[string][]string)
-	for _, br := range gw.MyConfig.Out {
-		m[br.Account] = append(m[br.Account], br.Channel)
-		options[br.Account+br.Channel] = br.Options
+	for _, br := range append(gw.MyConfig.Out, gw.MyConfig.InOut...) {
+		if isApi(br.Account) {
+			br.Channel = "api"
+		}
+		ID := br.Channel + br.Account
+		_, ok := gw.Channels[ID]
+		if !ok {
+			channel := &config.ChannelInfo{Name: br.Channel, Direction: "out", ID: ID, Options: br.Options, Account: br.Account,
+				GID: make(map[string]bool), SameChannel: make(map[string]bool)}
+			channel.GID[gw.Name] = true
+			channel.SameChannel[gw.Name] = br.SameChannel
+			gw.Channels[channel.ID] = channel
+		}
+		gw.Channels[ID].GID[gw.Name] = true
+		gw.Channels[ID].SameChannel[gw.Name] = br.SameChannel
 	}
-	gw.ChannelsOut = m
-	m = nil
-	m = make(map[string][]string)
-	for _, br := range gw.MyConfig.In {
-		m[br.Account] = append(m[br.Account], br.Channel)
-		options[br.Account+br.Channel] = br.Options
+
+	for _, br := range append(gw.MyConfig.In, gw.MyConfig.InOut...) {
+		if isApi(br.Account) {
+			br.Channel = "api"
+		}
+		ID := br.Channel + br.Account
+		_, ok := gw.Channels[ID]
+		if !ok {
+			channel := &config.ChannelInfo{Name: br.Channel, Direction: "in", ID: ID, Options: br.Options, Account: br.Account,
+				GID: make(map[string]bool), SameChannel: make(map[string]bool)}
+			channel.GID[gw.Name] = true
+			channel.SameChannel[gw.Name] = br.SameChannel
+			gw.Channels[channel.ID] = channel
+		}
+		gw.Channels[ID].GID[gw.Name] = true
+		gw.Channels[ID].SameChannel[gw.Name] = br.SameChannel
 	}
-	gw.ChannelsIn = m
-	for _, br := range gw.MyConfig.InOut {
-		gw.ChannelsIn[br.Account] = append(gw.ChannelsIn[br.Account], br.Channel)
-		gw.ChannelsOut[br.Account] = append(gw.ChannelsOut[br.Account], br.Channel)
-		options[br.Account+br.Channel] = br.Options
-	}
-	gw.ChannelOptions = options
 	return nil
 }
 
-func (gw *Gateway) getDestChannel(msg *config.Message, dest string) []string {
-	channels := gw.ChannelsIn[msg.Account]
-	// broadcast to every out channel (irc QUIT)
-	if msg.Event == config.EVENT_JOIN_LEAVE && msg.Channel == "" {
-		return gw.ChannelsOut[dest]
-	}
-	for _, channel := range channels {
-		if channel == msg.Channel {
-			return gw.ChannelsOut[dest]
+func (gw *Gateway) getDestChannel(msg *config.Message, dest bridge.Bridge) []config.ChannelInfo {
+	var channels []config.ChannelInfo
+	for _, channel := range gw.Channels {
+		if _, ok := gw.Channels[getChannelID(*msg)]; !ok {
+			continue
+		}
+		if channel.Direction == "out" && channel.Account == dest.Account && gw.validGatewayDest(msg, channel) {
+			channels = append(channels, *channel)
 		}
 	}
-	return []string{}
+	return channels
 }
 
 func (gw *Gateway) handleMessage(msg config.Message, dest *bridge.Bridge) {
@@ -155,19 +192,21 @@ func (gw *Gateway) handleMessage(msg config.Message, dest *bridge.Bridge) {
 	if msg.Event == config.EVENT_JOIN_LEAVE && !gw.Bridges[dest.Account].Config.ShowJoinPart {
 		return
 	}
+	// broadcast to every out channel (irc QUIT)
+	if msg.Channel == "" && msg.Event != config.EVENT_JOIN_LEAVE {
+		log.Debug("empty channel")
+		return
+	}
 	originchannel := msg.Channel
-	channels := gw.DestChannelFunc(&msg, dest.Account)
-	for _, channel := range channels {
-		// do not send the message to the bridge we come from if also the channel is the same
-		if msg.Account == dest.Account && channel == originchannel {
+	origmsg := msg
+	for _, channel := range gw.DestChannelFunc(&msg, *dest) {
+		// do not send to ourself
+		if channel.ID == getChannelID(origmsg) {
 			continue
 		}
-		msg.Channel = channel
-		if msg.Channel == "" {
-			log.Debug("empty channel")
-			return
-		}
-		log.Debugf("Sending %#v from %s (%s) to %s (%s)", msg, msg.Account, originchannel, dest.Account, channel)
+		log.Debugf("Sending %#v from %s (%s) to %s (%s)", msg, msg.Account, originchannel, dest.Account, channel.Name)
+		msg.Channel = channel.Name
+		gw.modifyAvatar(&msg, dest)
 		gw.modifyUsername(&msg, dest)
 		// for api we need originchannel as channel
 		if dest.Protocol == "api" {
@@ -194,21 +233,6 @@ func (gw *Gateway) ignoreMessage(msg *config.Message) bool {
 	return false
 }
 
-func (gw *Gateway) modifyMessage(msg *config.Message, dest *bridge.Bridge) {
-	val := reflect.ValueOf(gw.Config).Elem()
-	for i := 0; i < val.NumField(); i++ {
-		typeField := val.Type().Field(i)
-		// look for the protocol map (both lowercase)
-		if strings.ToLower(typeField.Name) == dest.Protocol {
-			// get the Protocol struct from the map
-			protoCfg := val.Field(i).MapIndex(reflect.ValueOf(dest.Name))
-			//config.SetNickFormat(msg, protoCfg.Interface().(config.Protocol))
-			val.Field(i).SetMapIndex(reflect.ValueOf(dest.Name), protoCfg)
-			break
-		}
-	}
-}
-
 func (gw *Gateway) modifyUsername(msg *config.Message, dest *bridge.Bridge) {
 	br := gw.Bridges[msg.Account]
 	msg.Protocol = br.Protocol
@@ -216,8 +240,74 @@ func (gw *Gateway) modifyUsername(msg *config.Message, dest *bridge.Bridge) {
 	if nick == "" {
 		nick = dest.Config.RemoteNickFormat
 	}
+	if len(msg.Username) > 0 {
+		// fix utf-8 issue #193
+		i := 0
+		for index := range msg.Username {
+			if i == 1 {
+				i = index
+				break
+			}
+			i++
+		}
+		nick = strings.Replace(nick, "{NOPINGNICK}", msg.Username[:i]+"​"+msg.Username[i:], -1)
+	}
 	nick = strings.Replace(nick, "{NICK}", msg.Username, -1)
 	nick = strings.Replace(nick, "{BRIDGE}", br.Name, -1)
 	nick = strings.Replace(nick, "{PROTOCOL}", br.Protocol, -1)
 	msg.Username = nick
 }
+
+func (gw *Gateway) modifyAvatar(msg *config.Message, dest *bridge.Bridge) {
+	iconurl := gw.Config.General.IconURL
+	if iconurl == "" {
+		iconurl = dest.Config.IconURL
+	}
+	iconurl = strings.Replace(iconurl, "{NICK}", msg.Username, -1)
+	if msg.Avatar == "" {
+		msg.Avatar = iconurl
+	}
+}
+
+func getChannelID(msg config.Message) string {
+	return msg.Channel + msg.Account
+}
+
+func (gw *Gateway) validGatewayDest(msg *config.Message, channel *config.ChannelInfo) bool {
+	GIDmap := gw.Channels[getChannelID(*msg)].GID
+
+	// gateway is specified in message (probably from api)
+	if msg.Gateway != "" {
+		return channel.GID[msg.Gateway]
+	}
+
+	// check if we are running a samechannelgateway.
+	// if it is and the channel name matches it's ok, otherwise we shouldn't use this channel.
+	for k, _ := range GIDmap {
+		if channel.SameChannel[k] == true {
+			if msg.Channel == channel.Name {
+				// add the gateway to our message
+				msg.Gateway = k
+				return true
+			} else {
+				return false
+			}
+		}
+	}
+	// check if we are in the correct gateway
+	for k, _ := range GIDmap {
+		if channel.GID[k] == true {
+			// add the gateway to our message
+			msg.Gateway = k
+			return true
+		}
+	}
+	return false
+}
+
+func isApi(account string) bool {
+	if strings.HasPrefix(account, "api.") {
+		return true
+	}
+	return false
+}

gateway/samechannel/samechannel.go

@@ -2,48 +2,27 @@ package samechannelgateway
 
 import (
 	"github.com/42wim/matterbridge/bridge/config"
-	"github.com/42wim/matterbridge/gateway"
 )
 
 type SameChannelGateway struct {
 	*config.Config
-	MyConfig *config.SameChannelGateway
-	Channels []string
-	Name     string
 }
 
-func New(cfg *config.Config, gatewayCfg *config.SameChannelGateway) *SameChannelGateway {
-	return &SameChannelGateway{
-		MyConfig: gatewayCfg,
-		Channels: gatewayCfg.Channels,
-		Name:     gatewayCfg.Name,
-		Config:   cfg}
+func New(cfg *config.Config) *SameChannelGateway {
+	return &SameChannelGateway{Config: cfg}
 }
 
-func (sgw *SameChannelGateway) Start() error {
-	gw := gateway.New(sgw.Config, &config.Gateway{Name: sgw.Name})
-	gw.DestChannelFunc = sgw.getDestChannel
-	for _, account := range sgw.MyConfig.Accounts {
-		for _, channel := range sgw.Channels {
-			br := config.Bridge{Account: account, Channel: channel}
-			gw.MyConfig.InOut = append(gw.MyConfig.InOut, br)
+func (sgw *SameChannelGateway) GetConfig() []config.Gateway {
+	var gwconfigs []config.Gateway
+	cfg := sgw.Config
+	for _, gw := range cfg.SameChannelGateway {
+		gwconfig := config.Gateway{Name: gw.Name, Enable: gw.Enable}
+		for _, account := range gw.Accounts {
+			for _, channel := range gw.Channels {
+				gwconfig.InOut = append(gwconfig.InOut, config.Bridge{Account: account, Channel: channel, SameChannel: true})
+			}
 		}
+		gwconfigs = append(gwconfigs, gwconfig)
 	}
-	return gw.Start()
-}
-
-func (sgw *SameChannelGateway) validChannel(channel string) bool {
-	for _, c := range sgw.Channels {
-		if c == channel {
-			return true
-		}
-	}
-	return false
-}
-
-func (sgw *SameChannelGateway) getDestChannel(msg *config.Message, dest string) []string {
-	if sgw.validChannel(msg.Channel) {
-		return []string{msg.Channel}
-	}
-	return []string{}
+	return gwconfigs
 }

matterbridge.go

@@ -7,10 +7,12 @@ import (
 	"github.com/42wim/matterbridge/gateway"
 	"github.com/42wim/matterbridge/gateway/samechannel"
 	log "github.com/Sirupsen/logrus"
+	"github.com/google/gops/agent"
+	"strings"
 )
 
 var (
-	version = "0.10.0"
+	version = "0.14.0"
 	githash string
 )
 
@@ -22,40 +24,42 @@ func main() {
 	flagConfig := flag.String("conf", "matterbridge.toml", "config file")
 	flagDebug := flag.Bool("debug", false, "enable debug")
 	flagVersion := flag.Bool("version", false, "show version")
+	flagGops := flag.Bool("gops", false, "enable gops agent")
 	flag.Parse()
+	if *flagGops {
+		agent.Listen(&agent.Options{})
+		defer agent.Close()
+	}
 	if *flagVersion {
 		fmt.Printf("version: %s %s\n", version, githash)
 		return
 	}
-	flag.Parse()
 	if *flagDebug {
 		log.Info("Enabling debug")
 		log.SetLevel(log.DebugLevel)
 	}
 	log.Printf("Running version %s %s", version, githash)
+	if strings.Contains(version, "-dev") {
+		log.Println("WARNING: THIS IS A DEVELOPMENT VERSION. Things may break.")
+	}
 	cfg := config.NewConfig(*flagConfig)
-	for _, gw := range cfg.SameChannelGateway {
-		if !gw.Enable {
-			continue
-		}
-		log.Printf("Starting samechannel gateway %#v", gw.Name)
-		g := samechannelgateway.New(cfg, &gw)
-		err := g.Start()
-		if err != nil {
-			log.Fatalf("Starting gateway failed %#v", err)
-		}
-	}
 
-	for _, gw := range cfg.Gateway {
+	g := gateway.New(cfg)
+	sgw := samechannelgateway.New(cfg)
+	gwconfigs := sgw.GetConfig()
+	for _, gw := range append(gwconfigs, cfg.Gateway...) {
 		if !gw.Enable {
 			continue
 		}
-		log.Printf("Starting gateway %#v", gw.Name)
-		g := gateway.New(cfg, &gw)
-		err := g.Start()
+		err := g.AddConfig(&gw)
 		if err != nil {
-			log.Fatalf("Starting gateway failed %#v", err)
+			log.Fatalf("Starting gateway failed: %s", err)
 		}
 	}
+	err := g.Start()
+	if err != nil {
+		log.Fatalf("Starting gateway failed: %s", err)
+	}
+	log.Printf("Gateway(s) started succesfully. Now relaying messages")
 	select {}
 }

matterbridge.toml.sample

@@ -1,4 +1,5 @@
 #This is configuration for matterbridge.
+#WARNING: as this file contains credentials, be sure to set correct file permissions
 ###################################################################
 #IRC section
 ###################################################################
@@ -48,10 +49,15 @@ MessageDelay=1300
 
 #Maximum amount of messages to hold in queue. If queue is full 
 #messages will be dropped. 
-#<clipped> will be add to the message that fills the queue.
+#<message clipped> will be add to the message that fills the queue.
 #OPTIONAL (default 30)
 MessageQueue=30
 
+#Maximum length of message sent to irc server. If it exceeds
+#<message clipped> will be add to the message.
+#OPTIONAL (default 400)
+MessageLength=400
+
 #Nicks you want to ignore. 
 #Messages from those users will not be sent to other bridges.
 #OPTIONAL
@@ -61,10 +67,12 @@ IgnoreNicks="ircspammer1 ircspammer2"
 #The string "{NICK}" (case sensitive) will be replaced by the actual nick / username.
 #The string "{BRIDGE}" (case sensitive) will be replaced by the sending bridge
 #The string "{PROTOCOL}" (case sensitive) will be replaced by the protocol used by the bridge
+#The string "{NOPINGNICK}" (case sensitive) will be replaced by the actual nick / username, but with a ZWSP inside the nick, so the irc user with the same nick won't get pinged. See https://github.com/42wim/matterbridge/issues/175 for more information
 #OPTIONAL (default empty)
 RemoteNickFormat="[{PROTOCOL}] <{NICK}> "
 
-#Enable to show users joins/parts from other bridges (only from irc-bridge at the moment)
+#Enable to show users joins/parts from other bridges 
+#Only works hiding/show messages from irc and mattermost bridge for now
 #OPTIONAL (default false)
 ShowJoinPart=false
 
@@ -114,7 +122,8 @@ IgnoreNicks="ircspammer1 ircspammer2"
 #OPTIONAL (default empty)
 RemoteNickFormat="[{PROTOCOL}] <{NICK}> "
 
-#Enable to show users joins/parts from other bridges (only from irc-bridge at the moment)
+#Enable to show users joins/parts from other bridges 
+#Only works hiding/show messages from irc and mattermost bridge for now
 #OPTIONAL (default false)
 ShowJoinPart=false
 
@@ -157,7 +166,8 @@ IgnoreNicks="spammer1 spammer2"
 #OPTIONAL (default empty)
 RemoteNickFormat="[{PROTOCOL}/{BRIDGE}] <{NICK}> "
 
-#Enable to show users joins/parts from other bridges (only from irc-bridge at the moment)
+#Enable to show users joins/parts from other bridges 
+#Only works hiding/show messages from irc and mattermost bridge for now
 #OPTIONAL (default false)
 ShowJoinPart=false
 
@@ -197,9 +207,9 @@ IconURL="http://youricon.png"
 #OPTIONAL
 useAPI=false
 
-#The mattermost hostname. 
+#The mattermost hostname. (do not prefix it with http or https)
 #REQUIRED (when useAPI=true)
-Server="yourmattermostserver.domain"
+Server="yourmattermostserver.domain" 
 
 #Your team on mattermost. 
 #REQUIRED (when useAPI=true)
@@ -238,6 +248,14 @@ NicksPerRow=4
 #OPTIONAL (default false)
 PrefixMessagesWithNick=false
 
+#Disable sending of edits to other bridges
+#OPTIONAL (default false)
+EditDisable=false
+
+#Message to be appended to every edited message
+#OPTIONAL (default empty)
+EditSuffix=" (edited)"
+
 #Nicks you want to ignore. 
 #Messages from those users will not be sent to other bridges.
 #OPTIONAL
@@ -250,7 +268,8 @@ IgnoreNicks="ircspammer1 ircspammer2"
 #OPTIONAL (default empty)
 RemoteNickFormat="[{PROTOCOL}] <{NICK}> "
 
-#Enable to show users joins/parts from other bridges (only from irc-bridge at the moment)
+#Enable to show users joins/parts from other bridges 
+#Only works hiding/show messages from irc and mattermost bridge for now
 #OPTIONAL (default false)
 ShowJoinPart=false
 
@@ -282,7 +301,8 @@ IgnoreNicks="ircspammer1 ircspammer2"
 #OPTIONAL (default empty)
 RemoteNickFormat="[{PROTOCOL}] <{NICK}> "
 
-#Enable to show users joins/parts from other bridges (only from irc-bridge at the moment)
+#Enable to show users joins/parts from other bridges 
+#Only works hiding/show messages from irc and mattermost bridge for now
 #OPTIONAL (default false)
 ShowJoinPart=false
 
@@ -321,6 +341,7 @@ useAPI=false
 #Token to connect with the Slack API
 #You'll have to use a test/api-token using a dedicated user and not a bot token.
 #See https://github.com/42wim/matterbridge/issues/75 for more info.
+#Use https://api.slack.com/custom-integrations/legacy-tokens
 #REQUIRED (when useAPI=true)
 Token="yourslacktoken"
 
@@ -341,6 +362,14 @@ NickFormatter="plain"
 #OPTIONAL (default 4)
 NicksPerRow=4
 
+#Disable sending of edits to other bridges
+#OPTIONAL (default false)
+EditDisable=true
+
+#Message to be appended to every edited message
+#OPTIONAL (default empty)
+EditSuffix=" (edited)"
+
 #Whether to prefix messages from other bridges to mattermost with RemoteNickFormat
 #Useful if username overrides for incoming webhooks isn't enabled on the 
 #slack server. If you set PrefixMessagesWithNick to true, each message 
@@ -361,7 +390,8 @@ IgnoreNicks="ircspammer1 ircspammer2"
 #OPTIONAL (default empty)
 RemoteNickFormat="[{PROTOCOL}] <{NICK}> "
 
-#Enable to show users joins/parts from other bridges (only from irc-bridge at the moment)
+#Enable to show users joins/parts from other bridges 
+#Only works hiding/show messages from irc and mattermost bridge for now
 #OPTIONAL (default false)
 ShowJoinPart=false
 
@@ -384,6 +414,14 @@ Token="Yourtokenhere"
 #REQUIRED
 Server="yourservername"
 
+#Disable sending of edits to other bridges
+#OPTIONAL (default false)
+EditDisable=false
+
+#Message to be appended to every edited message
+#OPTIONAL (default empty)
+EditSuffix=" (edited)"
+
 #Nicks you want to ignore. 
 #Messages from those users will not be sent to other bridges.
 #OPTIONAL
@@ -396,7 +434,8 @@ IgnoreNicks="ircspammer1 ircspammer2"
 #OPTIONAL (default empty)
 RemoteNickFormat="[{PROTOCOL}] <{NICK}> "
 
-#Enable to show users joins/parts from other bridges (only from irc-bridge at the moment)
+#Enable to show users joins/parts from other bridges 
+#Only works hiding/show messages from irc and mattermost bridge for now
 #OPTIONAL (default false)
 ShowJoinPart=false
 
@@ -419,6 +458,20 @@ Token="Yourtokenhere"
 #See https://core.telegram.org/bots/api#html-style
 MessageFormat=""
 
+#If enabled use the "First Name" as username. If this is empty use the Username
+#If disabled use the "Username" as username. If this is empty use the First Name 
+#If all names are empty, username will be "unknown"
+#OPTIONAL (default false)
+UseFirstName=false
+
+#Disable sending of edits to other bridges
+#OPTIONAL (default false)
+EditDisable=false
+
+#Message to be appended to every edited message
+#OPTIONAL (default empty)
+EditSuffix=" (edited)"
+
 #Nicks you want to ignore. 
 #Messages from those users will not be sent to other bridges.
 #OPTIONAL
@@ -431,7 +484,8 @@ IgnoreNicks="spammer1 spammer2"
 #OPTIONAL (default empty)
 RemoteNickFormat="[{PROTOCOL}] <{NICK}> "
 
-#Enable to show users joins/parts from other bridges (only from irc-bridge at the moment)
+#Enable to show users joins/parts from other bridges 
+#Only works hiding/show messages from irc and mattermost bridge for now
 #OPTIONAL (default false)
 ShowJoinPart=false
 
@@ -488,7 +542,8 @@ IgnoreNicks="ircspammer1 ircspammer2"
 #OPTIONAL (default empty)
 RemoteNickFormat="[{PROTOCOL}] <{NICK}> "
 
-#Enable to show users joins/parts from other bridges (only from irc-bridge at the moment)
+#Enable to show users joins/parts from other bridges 
+#Only works hiding/show messages from irc and mattermost bridge for now
 #OPTIONAL (default false)
 ShowJoinPart=false
 
@@ -512,6 +567,11 @@ Server="https://matrix.org"
 Login="yourlogin"
 Password="yourpass"
 
+#Whether to send the homeserver suffix. eg ":matrix.org" in @username:matrix.org
+#to other bridges, or only send "username".(true only sends username)
+#OPTIONAL (default false)
+NoHomeServerSuffix=false
+
 #Whether to prefix messages from other bridges to matrix with the sender's nick. 
 #Useful if username overrides for incoming webhooks isn't enabled on the 
 #matrix server. If you set PrefixMessagesWithNick to true, each message 
@@ -531,7 +591,8 @@ IgnoreNicks="spammer1 spammer2"
 #OPTIONAL (default empty)
 RemoteNickFormat="[{PROTOCOL}] <{NICK}> "
 
-#Enable to show users joins/parts from other bridges (only from irc-bridge at the moment)
+#Enable to show users joins/parts from other bridges 
+#Only works hiding/show messages from irc and mattermost bridge for now
 #OPTIONAL (default false)
 ShowJoinPart=false
 
@@ -552,6 +613,11 @@ BindAddress="127.0.0.1:4242"
 #Amount of messages to keep in memory
 Buffer=1000
 
+#Bearer token used for authentication
+#curl -H "Authorization: Bearer token" http://localhost:4242/api/messages
+#OPTIONAL (no authorization if token is empty)
+Token="mytoken"
+
 #RemoteNickFormat defines how remote users appear on this bridge 
 #The string "{NICK}" (case sensitive) will be replaced by the actual nick / username.
 #The string "{BRIDGE}" (case sensitive) will be replaced by the sending bridge
@@ -559,6 +625,8 @@ Buffer=1000
 #OPTIONAL (default empty)
 RemoteNickFormat="{NICK}"
 
+
+
 ###################################################################
 #General configuration
 ###################################################################
@@ -586,7 +654,7 @@ RemoteNickFormat="[{PROTOCOL}] <{NICK}> "
 #
 
 [[gateway]]
-#OPTIONAL (not used for now)
+#REQUIRED and UNIQUE
 name="gateway1"
 #Enable enables this gateway
 ##OPTIONAL (default false)
@@ -602,7 +670,7 @@ enable=true
     #channel to connect on that account
     #How to specify them for the different bridges:
     #
-    #irc        - #channel (# is required)
+    #irc        - #channel (# is required) (this needs to be lowercase!)
     #mattermost - channel (the channel name as seen in the URL, not the displayname)
     #gitter     - username/room 
     #xmpp       - channel
@@ -614,7 +682,8 @@ enable=true
     #             see (https://www.linkedin.com/pulse/telegram-bots-beginners-marco-frau)
     #hipchat    - id_channel (see https://www.hipchat.com/account/xmpp for the correct channel)
     #rocketchat - #channel (# is required)
-    #matrix     - #channel:server (eg #yourchannel:matrix.org)
+    #matrix     - #channel:server (eg #yourchannel:matrix.org) 
+    #           - encrypted rooms are not supported in matrix
     #REQUIRED
     channel="#testing"
 
@@ -650,7 +719,9 @@ enable=true
     #account="api.local"
     #channel="api"
     #To send data to the api:
-    #curl -XPOST -H 'Content-Type: application/json'  -d '{"text":"test","username":"randomuser"}' http://localhost:4242/api/message
+    #curl -XPOST -H 'Content-Type: application/json'  -d '{"text":"test","username":"randomuser","gateway":"gateway1"}' http://localhost:4242/api/message
+    #To read from the api:
+    #curl http://localhost:4242/api/messages
 
 #If you want to do a 1:1 mapping between protocols where the channelnames are the same
 #e.g. slack and mattermost you can use the samechannelgateway configuration
@@ -658,6 +729,7 @@ enable=true
 #channel testing on slack and vice versa. (and for the channel testing2 and testing3)
 
 [[samechannelgateway]]
+   name="samechannel1"
    enable = false
    accounts = [ "mattermost.work","slack.hobby" ]
    channels = [ "testing","testing2","testing3"]

matterbridge.toml.simple

@@ -1,3 +1,4 @@
+#WARNING: as this file contains credentials, be sure to set correct file permissions
 [irc]
     [irc.freenode]
     Server="irc.freenode.net:6667"
@@ -6,7 +7,8 @@
 [mattermost]
     [mattermost.work]
     useAPI=true
-    Server="yourmattermostserver.domain"
+    #do not prefix it wit http:// or https://
+    Server="yourmattermostserver.domain" 
     Team="yourteam"
     Login="yourlogin"
     Password="yourpass"
@@ -15,18 +17,19 @@
 [[gateway]]
 name="gateway1"
 enable=true
-    [[gateway.in]]
+    [[gateway.inout]]
     account="irc.freenode"
     channel="#testing"
 
-    [[gateway.out]]
-    account="irc.freenode"
-    channel="#testing"
-
-    [[gateway.in]]
+    [[gateway.inout]]
     account="mattermost.work"
     channel="off-topic"
     
-    [[gateway.out]]
-    account="mattermost.work"
-    channel="off-topic"
+#simpler config possible since v0.10.2
+#[[gateway]]
+#name="gateway2"
+#enable=true
+#inout = [
+#    { account="irc.freenode", channel="#testing", options={key="channelkey"}},
+#    { account="mattermost.work", channel="off-topic" },
+#]

matterclient/matterclient.go

@@ -4,9 +4,11 @@ import (
 	"crypto/tls"
 	"encoding/json"
 	"errors"
+	"fmt"
 	"net/http"
 	"net/http/cookiejar"
 	"net/url"
+	"strconv"
 	"strings"
 	"sync"
 	"time"
@@ -34,6 +36,7 @@ type Message struct {
 	Channel  string
 	Username string
 	Text     string
+	Type     string
 }
 
 type Team struct {
@@ -47,19 +50,20 @@ type Team struct {
 type MMClient struct {
 	sync.RWMutex
 	*Credentials
-	Team        *Team
-	OtherTeams  []*Team
-	Client      *model.Client
-	User        *model.User
-	Users       map[string]*model.User
-	MessageChan chan *Message
-	log         *log.Entry
-	WsClient    *websocket.Conn
-	WsQuit      bool
-	WsAway      bool
-	WsConnected bool
-	WsSequence  int64
-	WsPingChan  chan *model.WebSocketResponse
+	Team          *Team
+	OtherTeams    []*Team
+	Client        *model.Client
+	User          *model.User
+	Users         map[string]*model.User
+	MessageChan   chan *Message
+	log           *log.Entry
+	WsClient      *websocket.Conn
+	WsQuit        bool
+	WsAway        bool
+	WsConnected   bool
+	WsSequence    int64
+	WsPingChan    chan *model.WebSocketResponse
+	ServerVersion string
 }
 
 func New(login, pass, team, server string) *MMClient {
@@ -102,8 +106,27 @@ func (m *MMClient) Login() error {
 	}
 	// login to mattermost
 	m.Client = model.NewClient(uriScheme + m.Credentials.Server)
-	m.Client.HttpClient.Transport = &http.Transport{TLSClientConfig: &tls.Config{InsecureSkipVerify: m.SkipTLSVerify}}
+	m.Client.HttpClient.Transport = &http.Transport{TLSClientConfig: &tls.Config{InsecureSkipVerify: m.SkipTLSVerify}, Proxy: http.ProxyFromEnvironment}
 	m.Client.HttpClient.Timeout = time.Second * 10
+
+	for {
+		d := b.Duration()
+		// bogus call to get the serverversion
+		m.Client.GetClientProperties()
+		if firstConnection && !supportedVersion(m.Client.ServerVersion) {
+			return fmt.Errorf("unsupported mattermost version: %s", m.Client.ServerVersion)
+		}
+		m.ServerVersion = m.Client.ServerVersion
+		if m.ServerVersion == "" {
+			m.log.Debugf("Server not up yet, reconnecting in %s", d)
+			time.Sleep(d)
+		} else {
+			m.log.Infof("Found version %s", m.ServerVersion)
+			break
+		}
+	}
+	b.Reset()
+
 	var myinfo *model.Result
 	var appErr *model.AppError
 	var logmsg = "trying login"
@@ -159,11 +182,11 @@ func (m *MMClient) Login() error {
 	m.Client.SetTeamId(m.Team.Id)
 
 	// setup websocket connection
-	wsurl := wsScheme + m.Credentials.Server + model.API_URL_SUFFIX + "/users/websocket"
+	wsurl := wsScheme + m.Credentials.Server + model.API_URL_SUFFIX_V3 + "/users/websocket"
 	header := http.Header{}
 	header.Set(model.HEADER_AUTH, "BEARER "+m.Client.AuthToken)
 
-	m.log.Debug("WsClient: making connection")
+	m.log.Debugf("WsClient: making connection: %s", wsurl)
 	for {
 		wsDialer := &websocket.Dialer{Proxy: http.ProxyFromEnvironment, TLSClientConfig: &tls.Config{InsecureSkipVerify: m.SkipTLSVerify}}
 		m.WsClient, _, err = wsDialer.Dial(wsurl, header)
@@ -177,6 +200,7 @@ func (m *MMClient) Login() error {
 	}
 	b.Reset()
 
+	m.log.Debug("WsClient: connected")
 	m.WsSequence = 1
 	m.WsPingChan = make(chan *model.WebSocketResponse)
 	// only start to parse WS messages when login is completely done
@@ -238,7 +262,7 @@ func (m *MMClient) WsReceiver() {
 
 func (m *MMClient) parseMessage(rmsg *Message) {
 	switch rmsg.Raw.Event {
-	case model.WEBSOCKET_EVENT_POSTED:
+	case model.WEBSOCKET_EVENT_POSTED, model.WEBSOCKET_EVENT_POST_EDITED:
 		m.parseActionPost(rmsg)
 		/*
 			case model.ACTION_USER_REMOVED:
@@ -264,9 +288,19 @@ func (m *MMClient) parseActionPost(rmsg *Message) {
 	if m.GetUser(data.UserId) == nil {
 		m.UpdateUsers()
 	}
-	rmsg.Username = m.GetUser(data.UserId).Username
+	rmsg.Username = m.GetUserName(data.UserId)
 	rmsg.Channel = m.GetChannelName(data.ChannelId)
-	rmsg.Team = m.GetTeamName(rmsg.Raw.Data["team_id"].(string))
+	rmsg.Type = data.Type
+	teamid, _ := rmsg.Raw.Data["team_id"].(string)
+	// edit messsages have no team_id for some reason
+	if teamid == "" {
+		// we can find the team_id from the channelid
+		teamid = m.GetChannelTeamId(data.ChannelId)
+		rmsg.Raw.Data["team_id"] = teamid
+	}
+	if teamid != "" {
+		rmsg.Team = m.GetTeamName(teamid)
+	}
 	// direct message
 	if rmsg.Raw.Data["channel_type"] == "D" {
 		rmsg.Channel = m.GetUser(data.UserId).Username
@@ -292,7 +326,12 @@ func (m *MMClient) UpdateChannels() error {
 	if err != nil {
 		return errors.New(err.DetailedError)
 	}
-	mmchannels2, err := m.Client.GetMoreChannels("")
+	var mmchannels2 *model.Result
+	if m.mmVersion() >= 3.08 {
+		mmchannels2, err = m.Client.GetMoreChannelsPage(0, 5000)
+	} else {
+		mmchannels2, err = m.Client.GetMoreChannels("")
+	}
 	if err != nil {
 		return errors.New(err.DetailedError)
 	}
@@ -334,6 +373,19 @@ func (m *MMClient) GetChannelId(name string, teamId string) string {
 	return ""
 }
 
+func (m *MMClient) GetChannelTeamId(id string) string {
+	m.RLock()
+	defer m.RUnlock()
+	for _, t := range append(m.OtherTeams, m.Team) {
+		for _, channel := range append(*t.Channels, *t.MoreChannels...) {
+			if channel.Id == id {
+				return channel.TeamId
+			}
+		}
+	}
+	return ""
+}
+
 func (m *MMClient) GetChannelHeader(channelId string) string {
 	m.RLock()
 	defer m.RUnlock()
@@ -427,6 +479,14 @@ func (m *MMClient) UpdateChannelHeader(channelId string, header string) {
 
 func (m *MMClient) UpdateLastViewed(channelId string) {
 	m.log.Debugf("posting lastview %#v", channelId)
+	if m.mmVersion() >= 3.08 {
+		view := model.ChannelView{ChannelId: channelId}
+		res, _ := m.Client.ViewChannel(view)
+		if res == false {
+			m.log.Errorf("ChannelView update for %s failed", channelId)
+		}
+		return
+	}
 	_, err := m.Client.UpdateLastViewedAt(channelId, true)
 	if err != nil {
 		m.log.Error(err)
@@ -573,6 +633,14 @@ func (m *MMClient) GetUser(userId string) *model.User {
 	return m.Users[userId]
 }
 
+func (m *MMClient) GetUserName(userId string) string {
+	user := m.GetUser(userId)
+	if user != nil {
+		return user.Username
+	}
+	return ""
+}
+
 func (m *MMClient) GetStatus(userId string) string {
 	res, err := m.Client.GetStatuses()
 	if err != nil {
@@ -628,6 +696,7 @@ func (m *MMClient) StatusLoop() {
 				m.Logout()
 				m.WsQuit = false
 				m.Login()
+				go m.WsReceiver()
 			}
 		}
 		time.Sleep(time.Second * 60)
@@ -659,7 +728,11 @@ func (m *MMClient) initUser() error {
 			return errors.New(err.DetailedError)
 		}
 		t.Channels = mmchannels.Data.(*model.ChannelList)
-		mmchannels, err = m.Client.GetMoreChannels("")
+		if m.mmVersion() >= 3.08 {
+			mmchannels, err = m.Client.GetMoreChannelsPage(0, 5000)
+		} else {
+			mmchannels, err = m.Client.GetMoreChannels("")
+		}
 		if err != nil {
 			return errors.New(err.DetailedError)
 		}
@@ -687,3 +760,23 @@ func (m *MMClient) sendWSRequest(action string, data map[string]interface{}) err
 	m.WsClient.WriteJSON(req)
 	return nil
 }
+
+func (m *MMClient) mmVersion() float64 {
+	v, _ := strconv.ParseFloat(string(m.ServerVersion[0:2])+"0"+string(m.ServerVersion[2]), 64)
+	if string(m.ServerVersion[4]) == "." {
+		v, _ = strconv.ParseFloat(m.ServerVersion[0:4], 64)
+	}
+	return v
+}
+
+func supportedVersion(version string) bool {
+	if strings.HasPrefix(version, "3.5.0") ||
+		strings.HasPrefix(version, "3.6.0") ||
+		strings.HasPrefix(version, "3.7.0") ||
+		strings.HasPrefix(version, "3.8.0") ||
+		strings.HasPrefix(version, "3.9.0") ||
+		strings.HasPrefix(version, "3.10.0") {
+		return true
+	}
+	return false
+}

vendor/github.com/BurntSushi/toml/doc.go

@@ -4,7 +4,7 @@ files via reflection. There is also support for delaying decoding with
 the Primitive type, and querying the set of keys in a TOML document with the
 MetaData type.
 
-The specification implemented: https://github.com/mojombo/toml
+The specification implemented: https://github.com/toml-lang/toml
 
 The sub-command github.com/BurntSushi/toml/cmd/tomlv can be used to verify
 whether a file is a valid TOML document. It can also be used to print the

vendor/github.com/BurntSushi/toml/encode.go

@@ -241,7 +241,7 @@ func (enc *Encoder) eArrayOfTables(key Key, rv reflect.Value) {
 func (enc *Encoder) eTable(key Key, rv reflect.Value) {
 	panicIfInvalidKey(key)
 	if len(key) == 1 {
-		// Output an extra new line between top-level tables.
+		// Output an extra newline between top-level tables.
 		// (The newline isn't written if nothing else has been written though.)
 		enc.newline()
 	}

vendor/github.com/BurntSushi/toml/lex.go

@@ -30,24 +30,28 @@ const (
 	itemArrayTableEnd
 	itemKeyStart
 	itemCommentStart
+	itemInlineTableStart
+	itemInlineTableEnd
 )
 
 const (
-	eof             = 0
-	tableStart      = '['
-	tableEnd        = ']'
-	arrayTableStart = '['
-	arrayTableEnd   = ']'
-	tableSep        = '.'
-	keySep          = '='
-	arrayStart      = '['
-	arrayEnd        = ']'
-	arrayValTerm    = ','
-	commentStart    = '#'
-	stringStart     = '"'
-	stringEnd       = '"'
-	rawStringStart  = '\''
-	rawStringEnd    = '\''
+	eof              = 0
+	comma            = ','
+	tableStart       = '['
+	tableEnd         = ']'
+	arrayTableStart  = '['
+	arrayTableEnd    = ']'
+	tableSep         = '.'
+	keySep           = '='
+	arrayStart       = '['
+	arrayEnd         = ']'
+	commentStart     = '#'
+	stringStart      = '"'
+	stringEnd        = '"'
+	rawStringStart   = '\''
+	rawStringEnd     = '\''
+	inlineTableStart = '{'
+	inlineTableEnd   = '}'
 )
 
 type stateFn func(lx *lexer) stateFn
@@ -56,11 +60,18 @@ type lexer struct {
 	input string
 	start int
 	pos   int
-	width int
 	line  int
 	state stateFn
 	items chan item
 
+	// Allow for backing up up to three runes.
+	// This is necessary because TOML contains 3-rune tokens (""" and ''').
+	prevWidths [3]int
+	nprev      int // how many of prevWidths are in use
+	// If we emit an eof, we can still back up, but it is not OK to call
+	// next again.
+	atEOF bool
+
 	// A stack of state functions used to maintain context.
 	// The idea is to reuse parts of the state machine in various places.
 	// For example, values can appear at the top level or within arbitrarily
@@ -88,7 +99,7 @@ func (lx *lexer) nextItem() item {
 
 func lex(input string) *lexer {
 	lx := &lexer{
-		input: input + "\n",
+		input: input,
 		state: lexTop,
 		line:  1,
 		items: make(chan item, 10),
@@ -103,7 +114,7 @@ func (lx *lexer) push(state stateFn) {
 
 func (lx *lexer) pop() stateFn {
 	if len(lx.stack) == 0 {
-		return lx.errorf("BUG in lexer: no states to pop.")
+		return lx.errorf("BUG in lexer: no states to pop")
 	}
 	last := lx.stack[len(lx.stack)-1]
 	lx.stack = lx.stack[0 : len(lx.stack)-1]
@@ -125,16 +136,25 @@ func (lx *lexer) emitTrim(typ itemType) {
 }
 
 func (lx *lexer) next() (r rune) {
+	if lx.atEOF {
+		panic("next called after EOF")
+	}
 	if lx.pos >= len(lx.input) {
-		lx.width = 0
+		lx.atEOF = true
 		return eof
 	}
 
 	if lx.input[lx.pos] == '\n' {
 		lx.line++
 	}
-	r, lx.width = utf8.DecodeRuneInString(lx.input[lx.pos:])
-	lx.pos += lx.width
+	lx.prevWidths[2] = lx.prevWidths[1]
+	lx.prevWidths[1] = lx.prevWidths[0]
+	if lx.nprev < 3 {
+		lx.nprev++
+	}
+	r, w := utf8.DecodeRuneInString(lx.input[lx.pos:])
+	lx.prevWidths[0] = w
+	lx.pos += w
 	return r
 }
 
@@ -143,9 +163,20 @@ func (lx *lexer) ignore() {
 	lx.start = lx.pos
 }
 
-// backup steps back one rune. Can be called only once per call of next.
+// backup steps back one rune. Can be called only twice between calls to next.
 func (lx *lexer) backup() {
-	lx.pos -= lx.width
+	if lx.atEOF {
+		lx.atEOF = false
+		return
+	}
+	if lx.nprev < 1 {
+		panic("backed up too far")
+	}
+	w := lx.prevWidths[0]
+	lx.prevWidths[0] = lx.prevWidths[1]
+	lx.prevWidths[1] = lx.prevWidths[2]
+	lx.nprev--
+	lx.pos -= w
 	if lx.pos < len(lx.input) && lx.input[lx.pos] == '\n' {
 		lx.line--
 	}
@@ -182,7 +213,7 @@ func (lx *lexer) skip(pred func(rune) bool) {
 
 // errorf stops all lexing by emitting an error and returning `nil`.
 // Note that any value that is a character is escaped if it's a special
-// character (new lines, tabs, etc.).
+// character (newlines, tabs, etc.).
 func (lx *lexer) errorf(format string, values ...interface{}) stateFn {
 	lx.items <- item{
 		itemError,
@@ -198,7 +229,6 @@ func lexTop(lx *lexer) stateFn {
 	if isWhitespace(r) || isNL(r) {
 		return lexSkip(lx, lexTop)
 	}
-
 	switch r {
 	case commentStart:
 		lx.push(lexTop)
@@ -207,7 +237,7 @@ func lexTop(lx *lexer) stateFn {
 		return lexTableStart
 	case eof:
 		if lx.pos > lx.start {
-			return lx.errorf("Unexpected EOF.")
+			return lx.errorf("unexpected EOF")
 		}
 		lx.emit(itemEOF)
 		return nil
@@ -222,12 +252,12 @@ func lexTop(lx *lexer) stateFn {
 
 // lexTopEnd is entered whenever a top-level item has been consumed. (A value
 // or a table.) It must see only whitespace, and will turn back to lexTop
-// upon a new line. If it sees EOF, it will quit the lexer successfully.
+// upon a newline. If it sees EOF, it will quit the lexer successfully.
 func lexTopEnd(lx *lexer) stateFn {
 	r := lx.next()
 	switch {
 	case r == commentStart:
-		// a comment will read to a new line for us.
+		// a comment will read to a newline for us.
 		lx.push(lexTop)
 		return lexCommentStart
 	case isWhitespace(r):
@@ -236,11 +266,11 @@ func lexTopEnd(lx *lexer) stateFn {
 		lx.ignore()
 		return lexTop
 	case r == eof:
-		lx.ignore()
-		return lexTop
+		lx.emit(itemEOF)
+		return nil
 	}
-	return lx.errorf("Expected a top-level item to end with a new line, "+
-		"comment or EOF, but got %q instead.", r)
+	return lx.errorf("expected a top-level item to end with a newline, "+
+		"comment, or EOF, but got %q instead", r)
 }
 
 // lexTable lexes the beginning of a table. Namely, it makes sure that
@@ -267,8 +297,8 @@ func lexTableEnd(lx *lexer) stateFn {
 
 func lexArrayTableEnd(lx *lexer) stateFn {
 	if r := lx.next(); r != arrayTableEnd {
-		return lx.errorf("Expected end of table array name delimiter %q, "+
-			"but got %q instead.", arrayTableEnd, r)
+		return lx.errorf("expected end of table array name delimiter %q, "+
+			"but got %q instead", arrayTableEnd, r)
 	}
 	lx.emit(itemArrayTableEnd)
 	return lexTopEnd
@@ -278,11 +308,11 @@ func lexTableNameStart(lx *lexer) stateFn {
 	lx.skip(isWhitespace)
 	switch r := lx.peek(); {
 	case r == tableEnd || r == eof:
-		return lx.errorf("Unexpected end of table name. (Table names cannot " +
-			"be empty.)")
+		return lx.errorf("unexpected end of table name " +
+			"(table names cannot be empty)")
 	case r == tableSep:
-		return lx.errorf("Unexpected table separator. (Table names cannot " +
-			"be empty.)")
+		return lx.errorf("unexpected table separator " +
+			"(table names cannot be empty)")
 	case r == stringStart || r == rawStringStart:
 		lx.ignore()
 		lx.push(lexTableNameEnd)
@@ -317,8 +347,8 @@ func lexTableNameEnd(lx *lexer) stateFn {
 	case r == tableEnd:
 		return lx.pop()
 	default:
-		return lx.errorf("Expected '.' or ']' to end table name, but got %q "+
-			"instead.", r)
+		return lx.errorf("expected '.' or ']' to end table name, "+
+			"but got %q instead", r)
 	}
 }
 
@@ -328,7 +358,7 @@ func lexKeyStart(lx *lexer) stateFn {
 	r := lx.peek()
 	switch {
 	case r == keySep:
-		return lx.errorf("Unexpected key separator %q.", keySep)
+		return lx.errorf("unexpected key separator %q", keySep)
 	case isWhitespace(r) || isNL(r):
 		lx.next()
 		return lexSkip(lx, lexKeyStart)
@@ -359,7 +389,7 @@ func lexBareKey(lx *lexer) stateFn {
 		lx.emit(itemText)
 		return lexKeyEnd
 	default:
-		return lx.errorf("Bare keys cannot contain %q.", r)
+		return lx.errorf("bare keys cannot contain %q", r)
 	}
 }
 
@@ -372,7 +402,7 @@ func lexKeyEnd(lx *lexer) stateFn {
 	case isWhitespace(r):
 		return lexSkip(lx, lexKeyEnd)
 	default:
-		return lx.errorf("Expected key separator %q, but got %q instead.",
+		return lx.errorf("expected key separator %q, but got %q instead",
 			keySep, r)
 	}
 }
@@ -381,9 +411,8 @@ func lexKeyEnd(lx *lexer) stateFn {
 // lexValue will ignore whitespace.
 // After a value is lexed, the last state on the next is popped and returned.
 func lexValue(lx *lexer) stateFn {
-	// We allow whitespace to precede a value, but NOT new lines.
-	// In array syntax, the array states are responsible for ignoring new
-	// lines.
+	// We allow whitespace to precede a value, but NOT newlines.
+	// In array syntax, the array states are responsible for ignoring newlines.
 	r := lx.next()
 	switch {
 	case isWhitespace(r):
@@ -397,6 +426,10 @@ func lexValue(lx *lexer) stateFn {
 		lx.ignore()
 		lx.emit(itemArray)
 		return lexArrayValue
+	case inlineTableStart:
+		lx.ignore()
+		lx.emit(itemInlineTableStart)
+		return lexInlineTableValue
 	case stringStart:
 		if lx.accept(stringStart) {
 			if lx.accept(stringStart) {
@@ -420,7 +453,7 @@ func lexValue(lx *lexer) stateFn {
 	case '+', '-':
 		return lexNumberStart
 	case '.': // special error case, be kind to users
-		return lx.errorf("Floats must start with a digit, not '.'.")
+		return lx.errorf("floats must start with a digit, not '.'")
 	}
 	if unicode.IsLetter(r) {
 		// Be permissive here; lexBool will give a nice error if the
@@ -430,11 +463,11 @@ func lexValue(lx *lexer) stateFn {
 		lx.backup()
 		return lexBool
 	}
-	return lx.errorf("Expected value but found %q instead.", r)
+	return lx.errorf("expected value but found %q instead", r)
 }
 
 // lexArrayValue consumes one value in an array. It assumes that '[' or ','
-// have already been consumed. All whitespace and new lines are ignored.
+// have already been consumed. All whitespace and newlines are ignored.
 func lexArrayValue(lx *lexer) stateFn {
 	r := lx.next()
 	switch {
@@ -443,10 +476,11 @@ func lexArrayValue(lx *lexer) stateFn {
 	case r == commentStart:
 		lx.push(lexArrayValue)
 		return lexCommentStart
-	case r == arrayValTerm:
-		return lx.errorf("Unexpected array value terminator %q.",
-			arrayValTerm)
+	case r == comma:
+		return lx.errorf("unexpected comma")
 	case r == arrayEnd:
+		// NOTE(caleb): The spec isn't clear about whether you can have
+		// a trailing comma or not, so we'll allow it.
 		return lexArrayEnd
 	}
 
@@ -455,8 +489,9 @@ func lexArrayValue(lx *lexer) stateFn {
 	return lexValue
 }
 
-// lexArrayValueEnd consumes the cruft between values of an array. Namely,
-// it ignores whitespace and expects either a ',' or a ']'.
+// lexArrayValueEnd consumes everything between the end of an array value and
+// the next value (or the end of the array): it ignores whitespace and newlines
+// and expects either a ',' or a ']'.
 func lexArrayValueEnd(lx *lexer) stateFn {
 	r := lx.next()
 	switch {
@@ -465,31 +500,88 @@ func lexArrayValueEnd(lx *lexer) stateFn {
 	case r == commentStart:
 		lx.push(lexArrayValueEnd)
 		return lexCommentStart
-	case r == arrayValTerm:
+	case r == comma:
 		lx.ignore()
 		return lexArrayValue // move on to the next value
 	case r == arrayEnd:
 		return lexArrayEnd
 	}
-	return lx.errorf("Expected an array value terminator %q or an array "+
-		"terminator %q, but got %q instead.", arrayValTerm, arrayEnd, r)
+	return lx.errorf(
+		"expected a comma or array terminator %q, but got %q instead",
+		arrayEnd, r,
+	)
 }
 
-// lexArrayEnd finishes the lexing of an array. It assumes that a ']' has
-// just been consumed.
+// lexArrayEnd finishes the lexing of an array.
+// It assumes that a ']' has just been consumed.
 func lexArrayEnd(lx *lexer) stateFn {
 	lx.ignore()
 	lx.emit(itemArrayEnd)
 	return lx.pop()
 }
 
+// lexInlineTableValue consumes one key/value pair in an inline table.
+// It assumes that '{' or ',' have already been consumed. Whitespace is ignored.
+func lexInlineTableValue(lx *lexer) stateFn {
+	r := lx.next()
+	switch {
+	case isWhitespace(r):
+		return lexSkip(lx, lexInlineTableValue)
+	case isNL(r):
+		return lx.errorf("newlines not allowed within inline tables")
+	case r == commentStart:
+		lx.push(lexInlineTableValue)
+		return lexCommentStart
+	case r == comma:
+		return lx.errorf("unexpected comma")
+	case r == inlineTableEnd:
+		return lexInlineTableEnd
+	}
+	lx.backup()
+	lx.push(lexInlineTableValueEnd)
+	return lexKeyStart
+}
+
+// lexInlineTableValueEnd consumes everything between the end of an inline table
+// key/value pair and the next pair (or the end of the table):
+// it ignores whitespace and expects either a ',' or a '}'.
+func lexInlineTableValueEnd(lx *lexer) stateFn {
+	r := lx.next()
+	switch {
+	case isWhitespace(r):
+		return lexSkip(lx, lexInlineTableValueEnd)
+	case isNL(r):
+		return lx.errorf("newlines not allowed within inline tables")
+	case r == commentStart:
+		lx.push(lexInlineTableValueEnd)
+		return lexCommentStart
+	case r == comma:
+		lx.ignore()
+		return lexInlineTableValue
+	case r == inlineTableEnd:
+		return lexInlineTableEnd
+	}
+	return lx.errorf("expected a comma or an inline table terminator %q, "+
+		"but got %q instead", inlineTableEnd, r)
+}
+
+// lexInlineTableEnd finishes the lexing of an inline table.
+// It assumes that a '}' has just been consumed.
+func lexInlineTableEnd(lx *lexer) stateFn {
+	lx.ignore()
+	lx.emit(itemInlineTableEnd)
+	return lx.pop()
+}
+
 // lexString consumes the inner contents of a string. It assumes that the
 // beginning '"' has already been consumed and ignored.
 func lexString(lx *lexer) stateFn {
 	r := lx.next()
 	switch {
+	case r == eof:
+		return lx.errorf("unexpected EOF")
 	case isNL(r):
-		return lx.errorf("Strings cannot contain new lines.")
+		return lx.errorf("strings cannot contain newlines")
 	case r == '\\':
 		lx.push(lexString)
 		return lexStringEscape
@@ -506,11 +598,12 @@ func lexString(lx *lexer) stateFn {
 // lexMultilineString consumes the inner contents of a string. It assumes that
 // the beginning '"""' has already been consumed and ignored.
 func lexMultilineString(lx *lexer) stateFn {
-	r := lx.next()
-	switch {
-	case r == '\\':
+	switch lx.next() {
+	case eof:
+		return lx.errorf("unexpected EOF")
+	case '\\':
 		return lexMultilineStringEscape
-	case r == stringEnd:
+	case stringEnd:
 		if lx.accept(stringEnd) {
 			if lx.accept(stringEnd) {
 				lx.backup()
@@ -534,8 +627,10 @@ func lexMultilineString(lx *lexer) stateFn {
 func lexRawString(lx *lexer) stateFn {
 	r := lx.next()
 	switch {
+	case r == eof:
+		return lx.errorf("unexpected EOF")
 	case isNL(r):
-		return lx.errorf("Strings cannot contain new lines.")
+		return lx.errorf("strings cannot contain newlines")
 	case r == rawStringEnd:
 		lx.backup()
 		lx.emit(itemRawString)
@@ -547,12 +642,13 @@ func lexRawString(lx *lexer) stateFn {
 }
 
 // lexMultilineRawString consumes a raw string. Nothing can be escaped in such
-// a string. It assumes that the beginning "'" has already been consumed and
+// a string. It assumes that the beginning "'''" has already been consumed and
 // ignored.
 func lexMultilineRawString(lx *lexer) stateFn {
-	r := lx.next()
-	switch {
-	case r == rawStringEnd:
+	switch lx.next() {
+	case eof:
+		return lx.errorf("unexpected EOF")
+	case rawStringEnd:
 		if lx.accept(rawStringEnd) {
 			if lx.accept(rawStringEnd) {
 				lx.backup()
@@ -605,10 +701,9 @@ func lexStringEscape(lx *lexer) stateFn {
 	case 'U':
 		return lexLongUnicodeEscape
 	}
-	return lx.errorf("Invalid escape character %q. Only the following "+
+	return lx.errorf("invalid escape character %q; only the following "+
 		"escape characters are allowed: "+
-		"\\b, \\t, \\n, \\f, \\r, \\\", \\/, \\\\, "+
-		"\\uXXXX and \\UXXXXXXXX.", r)
+		`\b, \t, \n, \f, \r, \", \\, \uXXXX, and \UXXXXXXXX`, r)
 }
 
 func lexShortUnicodeEscape(lx *lexer) stateFn {
@@ -616,8 +711,8 @@ func lexShortUnicodeEscape(lx *lexer) stateFn {
 	for i := 0; i < 4; i++ {
 		r = lx.next()
 		if !isHexadecimal(r) {
-			return lx.errorf("Expected four hexadecimal digits after '\\u', "+
-				"but got '%s' instead.", lx.current())
+			return lx.errorf(`expected four hexadecimal digits after '\u', `+
+				"but got %q instead", lx.current())
 		}
 	}
 	return lx.pop()
@@ -628,8 +723,8 @@ func lexLongUnicodeEscape(lx *lexer) stateFn {
 	for i := 0; i < 8; i++ {
 		r = lx.next()
 		if !isHexadecimal(r) {
-			return lx.errorf("Expected eight hexadecimal digits after '\\U', "+
-				"but got '%s' instead.", lx.current())
+			return lx.errorf(`expected eight hexadecimal digits after '\U', `+
+				"but got %q instead", lx.current())
 		}
 	}
 	return lx.pop()
@@ -647,9 +742,9 @@ func lexNumberOrDateStart(lx *lexer) stateFn {
 	case 'e', 'E':
 		return lexFloat
 	case '.':
-		return lx.errorf("Floats must start with a digit, not '.'.")
+		return lx.errorf("floats must start with a digit, not '.'")
 	}
-	return lx.errorf("Expected a digit but got %q.", r)
+	return lx.errorf("expected a digit but got %q", r)
 }
 
 // lexNumberOrDate consumes either an integer, float or datetime.
@@ -697,9 +792,9 @@ func lexNumberStart(lx *lexer) stateFn {
 	r := lx.next()
 	if !isDigit(r) {
 		if r == '.' {
-			return lx.errorf("Floats must start with a digit, not '.'.")
+			return lx.errorf("floats must start with a digit, not '.'")
 		}
-		return lx.errorf("Expected a digit but got %q.", r)
+		return lx.errorf("expected a digit but got %q", r)
 	}
 	return lexNumber
 }
@@ -757,7 +852,7 @@ func lexBool(lx *lexer) stateFn {
 		lx.emit(itemBool)
 		return lx.pop()
 	}
-	return lx.errorf("Expected value but found %q instead.", s)
+	return lx.errorf("expected value but found %q instead", s)
 }
 
 // lexCommentStart begins the lexing of a comment. It will emit
@@ -769,7 +864,7 @@ func lexCommentStart(lx *lexer) stateFn {
 }
 
 // lexComment lexes an entire comment. It assumes that '#' has been consumed.
-// It will consume *up to* the first new line character, and pass control
+// It will consume *up to* the first newline character, and pass control
 // back to the last state on the stack.
 func lexComment(lx *lexer) stateFn {
 	r := lx.peek()

vendor/github.com/BurntSushi/toml/parse.go

@@ -269,6 +269,41 @@ func (p *parser) value(it item) (interface{}, tomlType) {
 			types = append(types, typ)
 		}
 		return array, p.typeOfArray(types)
+	case itemInlineTableStart:
+		var (
+			hash         = make(map[string]interface{})
+			outerContext = p.context
+			outerKey     = p.currentKey
+		)
+
+		p.context = append(p.context, p.currentKey)
+		p.currentKey = ""
+		for it := p.next(); it.typ != itemInlineTableEnd; it = p.next() {
+			if it.typ != itemKeyStart {
+				p.bug("Expected key start but instead found %q, around line %d",
+					it.val, p.approxLine)
+			}
+			if it.typ == itemCommentStart {
+				p.expect(itemText)
+				continue
+			}
+
+			// retrieve key
+			k := p.next()
+			p.approxLine = k.line
+			kname := p.keyString(k)
+
+			// retrieve value
+			p.currentKey = kname
+			val, typ := p.value(p.next())
+			// make sure we keep metadata up to date
+			p.setType(kname, typ)
+			p.ordered = append(p.ordered, p.context.add(p.currentKey))
+			hash[kname] = val
+		}
+		p.context = outerContext
+		p.currentKey = outerKey
+		return hash, tomlHash
 	}
 	p.bug("Unexpected value type: %s", it.typ)
 	panic("unreachable")

vendor/github.com/Sirupsen/logrus/alt_exit.go

@@ -0,0 +1,64 @@
+package logrus
+
+// The following code was sourced and modified from the
+// https://github.com/tebeka/atexit package governed by the following license:
+//
+// Copyright (c) 2012 Miki Tebeka <miki.tebeka@gmail.com>.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy of
+// this software and associated documentation files (the "Software"), to deal in
+// the Software without restriction, including without limitation the rights to
+// use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+// the Software, and to permit persons to whom the Software is furnished to do so,
+// subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+// FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+// COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+// IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+// CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+import (
+	"fmt"
+	"os"
+)
+
+var handlers = []func(){}
+
+func runHandler(handler func()) {
+	defer func() {
+		if err := recover(); err != nil {
+			fmt.Fprintln(os.Stderr, "Error: Logrus exit handler error:", err)
+		}
+	}()
+
+	handler()
+}
+
+func runHandlers() {
+	for _, handler := range handlers {
+		runHandler(handler)
+	}
+}
+
+// Exit runs all the Logrus atexit handlers and then terminates the program using os.Exit(code)
+func Exit(code int) {
+	runHandlers()
+	os.Exit(code)
+}
+
+// RegisterExitHandler adds a Logrus Exit handler, call logrus.Exit to invoke
+// all handlers. The handlers will also be invoked when any Fatal log entry is
+// made.
+//
+// This method is useful when a caller wishes to use logrus to log a fatal
+// message but also needs to gracefully shutdown. An example usecase could be
+// closing database connections, or sending a alert that the application is
+// closing.
+func RegisterExitHandler(handler func()) {
+	handlers = append(handlers, handler)
+}

vendor/github.com/Sirupsen/logrus/entry.go

@@ -3,11 +3,21 @@ package logrus
 import (
 	"bytes"
 	"fmt"
-	"io"
 	"os"
+	"sync"
 	"time"
 )
 
+var bufferPool *sync.Pool
+
+func init() {
+	bufferPool = &sync.Pool{
+		New: func() interface{} {
+			return new(bytes.Buffer)
+		},
+	}
+}
+
 // Defines the key when adding errors using WithError.
 var ErrorKey = "error"
 
@@ -29,6 +39,9 @@ type Entry struct {
 
 	// Message passed to Debug, Info, Warn, Error, Fatal or Panic
 	Message string
+
+	// When formatter is called in entry.log(), an Buffer may be set to entry
+	Buffer *bytes.Buffer
 }
 
 func NewEntry(logger *Logger) *Entry {
@@ -39,21 +52,15 @@ func NewEntry(logger *Logger) *Entry {
 	}
 }
 
-// Returns a reader for the entry, which is a proxy to the formatter.
-func (entry *Entry) Reader() (*bytes.Buffer, error) {
-	serialized, err := entry.Logger.Formatter.Format(entry)
-	return bytes.NewBuffer(serialized), err
-}
-
 // Returns the string representation from the reader and ultimately the
 // formatter.
 func (entry *Entry) String() (string, error) {
-	reader, err := entry.Reader()
+	serialized, err := entry.Logger.Formatter.Format(entry)
 	if err != nil {
 		return "", err
 	}
-
-	return reader.String(), err
+	str := string(serialized)
+	return str, nil
 }
 
 // Add an error as single field (using the key defined in ErrorKey) to the Entry.
@@ -81,6 +88,7 @@ func (entry *Entry) WithFields(fields Fields) *Entry {
 // This function is not declared with a pointer value because otherwise
 // race conditions will occur when using multiple goroutines
 func (entry Entry) log(level Level, msg string) {
+	var buffer *bytes.Buffer
 	entry.Time = time.Now()
 	entry.Level = level
 	entry.Message = msg
@@ -90,20 +98,23 @@ func (entry Entry) log(level Level, msg string) {
 		fmt.Fprintf(os.Stderr, "Failed to fire hook: %v\n", err)
 		entry.Logger.mu.Unlock()
 	}
-
-	reader, err := entry.Reader()
+	buffer = bufferPool.Get().(*bytes.Buffer)
+	buffer.Reset()
+	defer bufferPool.Put(buffer)
+	entry.Buffer = buffer
+	serialized, err := entry.Logger.Formatter.Format(&entry)
+	entry.Buffer = nil
 	if err != nil {
 		entry.Logger.mu.Lock()
 		fmt.Fprintf(os.Stderr, "Failed to obtain reader, %v\n", err)
 		entry.Logger.mu.Unlock()
-	}
-
-	entry.Logger.mu.Lock()
-	defer entry.Logger.mu.Unlock()
-
-	_, err = io.Copy(entry.Logger.Out, reader)
-	if err != nil {
-		fmt.Fprintf(os.Stderr, "Failed to write to log, %v\n", err)
+	} else {
+		entry.Logger.mu.Lock()
+		_, err = entry.Logger.Out.Write(serialized)
+		if err != nil {
+			fmt.Fprintf(os.Stderr, "Failed to write to log, %v\n", err)
+		}
+		entry.Logger.mu.Unlock()
 	}
 
 	// To avoid Entry#log() returning a value that only would make sense for
@@ -150,7 +161,7 @@ func (entry *Entry) Fatal(args ...interface{}) {
 	if entry.Logger.Level >= FatalLevel {
 		entry.log(FatalLevel, fmt.Sprint(args...))
 	}
-	os.Exit(1)
+	Exit(1)
 }
 
 func (entry *Entry) Panic(args ...interface{}) {
@@ -198,7 +209,7 @@ func (entry *Entry) Fatalf(format string, args ...interface{}) {
 	if entry.Logger.Level >= FatalLevel {
 		entry.Fatal(fmt.Sprintf(format, args...))
 	}
-	os.Exit(1)
+	Exit(1)
 }
 
 func (entry *Entry) Panicf(format string, args ...interface{}) {
@@ -245,7 +256,7 @@ func (entry *Entry) Fatalln(args ...interface{}) {
 	if entry.Logger.Level >= FatalLevel {
 		entry.Fatal(entry.sprintlnn(args...))
 	}
-	os.Exit(1)
+	Exit(1)
 }
 
 func (entry *Entry) Panicln(args ...interface{}) {

vendor/github.com/Sirupsen/logrus/examples/basic/basic.go

@@ -2,6 +2,7 @@ package main
 
 import (
 	"github.com/Sirupsen/logrus"
+	// "os"
 )
 
 var log = logrus.New()
@@ -9,6 +10,14 @@ var log = logrus.New()
 func init() {
 	log.Formatter = new(logrus.JSONFormatter)
 	log.Formatter = new(logrus.TextFormatter) // default
+
+	// file, err := os.OpenFile("logrus.log", os.O_CREATE|os.O_WRONLY, 0666)
+	// if err == nil {
+	// 	log.Out = file
+	// } else {
+	// 	log.Info("Failed to log to file, using default stderr")
+	// }
+
 	log.Level = logrus.DebugLevel
 }
 

vendor/github.com/Sirupsen/logrus/formatter.go

@@ -31,18 +31,15 @@ type Formatter interface {
 // It's not exported because it's still using Data in an opinionated way. It's to
 // avoid code duplication between the two default formatters.
 func prefixFieldClashes(data Fields) {
-	_, ok := data["time"]
-	if ok {
-		data["fields.time"] = data["time"]
+	if t, ok := data["time"]; ok {
+		data["fields.time"] = t
 	}
 
-	_, ok = data["msg"]
-	if ok {
-		data["fields.msg"] = data["msg"]
+	if m, ok := data["msg"]; ok {
+		data["fields.msg"] = m
 	}
 
-	_, ok = data["level"]
-	if ok {
-		data["fields.level"] = data["level"]
+	if l, ok := data["level"]; ok {
+		data["fields.level"] = l
 	}
 }

vendor/github.com/Sirupsen/logrus/formatters/logstash/logstash.go

@@ -1,61 +0,0 @@
-package logstash
-
-import (
-	"encoding/json"
-	"fmt"
-
-	"github.com/Sirupsen/logrus"
-)
-
-// Formatter generates json in logstash format.
-// Logstash site: http://logstash.net/
-type LogstashFormatter struct {
-	Type string // if not empty use for logstash type field.
-
-	// TimestampFormat sets the format used for timestamps.
-	TimestampFormat string
-}
-
-func (f *LogstashFormatter) Format(entry *logrus.Entry) ([]byte, error) {
-	fields := make(logrus.Fields)
-	for k, v := range entry.Data {
-		fields[k] = v
-	}
-
-	fields["@version"] = 1
-
-	if f.TimestampFormat == "" {
-		f.TimestampFormat = logrus.DefaultTimestampFormat
-	}
-
-	fields["@timestamp"] = entry.Time.Format(f.TimestampFormat)
-
-	// set message field
-	v, ok := entry.Data["message"]
-	if ok {
-		fields["fields.message"] = v
-	}
-	fields["message"] = entry.Message
-
-	// set level field
-	v, ok = entry.Data["level"]
-	if ok {
-		fields["fields.level"] = v
-	}
-	fields["level"] = entry.Level.String()
-
-	// set type field
-	if f.Type != "" {
-		v, ok = entry.Data["type"]
-		if ok {
-			fields["fields.type"] = v
-		}
-		fields["type"] = f.Type
-	}
-
-	serialized, err := json.Marshal(fields)
-	if err != nil {
-		return nil, fmt.Errorf("Failed to marshal fields to JSON, %v", err)
-	}
-	return append(serialized, '\n'), nil
-}

vendor/github.com/Sirupsen/logrus/json_formatter.go

@@ -5,9 +5,40 @@ import (
 	"fmt"
 )
 
+type fieldKey string
+type FieldMap map[fieldKey]string
+
+const (
+	FieldKeyMsg   = "msg"
+	FieldKeyLevel = "level"
+	FieldKeyTime  = "time"
+)
+
+func (f FieldMap) resolve(key fieldKey) string {
+	if k, ok := f[key]; ok {
+		return k
+	}
+
+	return string(key)
+}
+
 type JSONFormatter struct {
 	// TimestampFormat sets the format used for marshaling timestamps.
 	TimestampFormat string
+
+	// DisableTimestamp allows disabling automatic timestamps in output
+	DisableTimestamp bool
+
+	// FieldMap allows users to customize the names of keys for various fields.
+	// As an example:
+	// formatter := &JSONFormatter{
+	//   	FieldMap: FieldMap{
+	// 		 FieldKeyTime: "@timestamp",
+	// 		 FieldKeyLevel: "@level",
+	// 		 FieldKeyLevel: "@message",
+	//    },
+	// }
+	FieldMap FieldMap
 }
 
 func (f *JSONFormatter) Format(entry *Entry) ([]byte, error) {
@@ -29,9 +60,11 @@ func (f *JSONFormatter) Format(entry *Entry) ([]byte, error) {
 		timestampFormat = DefaultTimestampFormat
 	}
 
-	data["time"] = entry.Time.Format(timestampFormat)
-	data["msg"] = entry.Message
-	data["level"] = entry.Level.String()
+	if !f.DisableTimestamp {
+		data[f.FieldMap.resolve(FieldKeyTime)] = entry.Time.Format(timestampFormat)
+	}
+	data[f.FieldMap.resolve(FieldKeyMsg)] = entry.Message
+	data[f.FieldMap.resolve(FieldKeyLevel)] = entry.Level.String()
 
 	serialized, err := json.Marshal(data)
 	if err != nil {

vendor/github.com/Sirupsen/logrus/logger.go

@@ -26,8 +26,31 @@ type Logger struct {
 	// to) `logrus.Info`, which allows Info(), Warn(), Error() and Fatal() to be
 	// logged. `logrus.Debug` is useful in
 	Level Level
-	// Used to sync writing to the log.
-	mu sync.Mutex
+	// Used to sync writing to the log. Locking is enabled by Default
+	mu MutexWrap
+	// Reusable empty entry
+	entryPool sync.Pool
+}
+
+type MutexWrap struct {
+	lock     sync.Mutex
+	disabled bool
+}
+
+func (mw *MutexWrap) Lock() {
+	if !mw.disabled {
+		mw.lock.Lock()
+	}
+}
+
+func (mw *MutexWrap) Unlock() {
+	if !mw.disabled {
+		mw.lock.Unlock()
+	}
+}
+
+func (mw *MutexWrap) Disable() {
+	mw.disabled = true
 }
 
 // Creates a new logger. Configuration should be set by changing `Formatter`,
@@ -51,162 +74,235 @@ func New() *Logger {
 	}
 }
 
-// Adds a field to the log entry, note that you it doesn't log until you call
+func (logger *Logger) newEntry() *Entry {
+	entry, ok := logger.entryPool.Get().(*Entry)
+	if ok {
+		return entry
+	}
+	return NewEntry(logger)
+}
+
+func (logger *Logger) releaseEntry(entry *Entry) {
+	logger.entryPool.Put(entry)
+}
+
+// Adds a field to the log entry, note that it doesn't log until you call
 // Debug, Print, Info, Warn, Fatal or Panic. It only creates a log entry.
 // If you want multiple fields, use `WithFields`.
 func (logger *Logger) WithField(key string, value interface{}) *Entry {
-	return NewEntry(logger).WithField(key, value)
+	entry := logger.newEntry()
+	defer logger.releaseEntry(entry)
+	return entry.WithField(key, value)
 }
 
 // Adds a struct of fields to the log entry. All it does is call `WithField` for
 // each `Field`.
 func (logger *Logger) WithFields(fields Fields) *Entry {
-	return NewEntry(logger).WithFields(fields)
+	entry := logger.newEntry()
+	defer logger.releaseEntry(entry)
+	return entry.WithFields(fields)
 }
 
 // Add an error as single field to the log entry.  All it does is call
 // `WithError` for the given `error`.
 func (logger *Logger) WithError(err error) *Entry {
-	return NewEntry(logger).WithError(err)
+	entry := logger.newEntry()
+	defer logger.releaseEntry(entry)
+	return entry.WithError(err)
 }
 
 func (logger *Logger) Debugf(format string, args ...interface{}) {
 	if logger.Level >= DebugLevel {
-		NewEntry(logger).Debugf(format, args...)
+		entry := logger.newEntry()
+		entry.Debugf(format, args...)
+		logger.releaseEntry(entry)
 	}
 }
 
 func (logger *Logger) Infof(format string, args ...interface{}) {
 	if logger.Level >= InfoLevel {
-		NewEntry(logger).Infof(format, args...)
+		entry := logger.newEntry()
+		entry.Infof(format, args...)
+		logger.releaseEntry(entry)
 	}
 }
 
 func (logger *Logger) Printf(format string, args ...interface{}) {
-	NewEntry(logger).Printf(format, args...)
+	entry := logger.newEntry()
+	entry.Printf(format, args...)
+	logger.releaseEntry(entry)
 }
 
 func (logger *Logger) Warnf(format string, args ...interface{}) {
 	if logger.Level >= WarnLevel {
-		NewEntry(logger).Warnf(format, args...)
+		entry := logger.newEntry()
+		entry.Warnf(format, args...)
+		logger.releaseEntry(entry)
 	}
 }
 
 func (logger *Logger) Warningf(format string, args ...interface{}) {
 	if logger.Level >= WarnLevel {
-		NewEntry(logger).Warnf(format, args...)
+		entry := logger.newEntry()
+		entry.Warnf(format, args...)
+		logger.releaseEntry(entry)
 	}
 }
 
 func (logger *Logger) Errorf(format string, args ...interface{}) {
 	if logger.Level >= ErrorLevel {
-		NewEntry(logger).Errorf(format, args...)
+		entry := logger.newEntry()
+		entry.Errorf(format, args...)
+		logger.releaseEntry(entry)
 	}
 }
 
 func (logger *Logger) Fatalf(format string, args ...interface{}) {
 	if logger.Level >= FatalLevel {
-		NewEntry(logger).Fatalf(format, args...)
+		entry := logger.newEntry()
+		entry.Fatalf(format, args...)
+		logger.releaseEntry(entry)
 	}
-	os.Exit(1)
+	Exit(1)
 }
 
 func (logger *Logger) Panicf(format string, args ...interface{}) {
 	if logger.Level >= PanicLevel {
-		NewEntry(logger).Panicf(format, args...)
+		entry := logger.newEntry()
+		entry.Panicf(format, args...)
+		logger.releaseEntry(entry)
 	}
 }
 
 func (logger *Logger) Debug(args ...interface{}) {
 	if logger.Level >= DebugLevel {
-		NewEntry(logger).Debug(args...)
+		entry := logger.newEntry()
+		entry.Debug(args...)
+		logger.releaseEntry(entry)
 	}
 }
 
 func (logger *Logger) Info(args ...interface{}) {
 	if logger.Level >= InfoLevel {
-		NewEntry(logger).Info(args...)
+		entry := logger.newEntry()
+		entry.Info(args...)
+		logger.releaseEntry(entry)
 	}
 }
 
 func (logger *Logger) Print(args ...interface{}) {
-	NewEntry(logger).Info(args...)
+	entry := logger.newEntry()
+	entry.Info(args...)
+	logger.releaseEntry(entry)
 }
 
 func (logger *Logger) Warn(args ...interface{}) {
 	if logger.Level >= WarnLevel {
-		NewEntry(logger).Warn(args...)
+		entry := logger.newEntry()
+		entry.Warn(args...)
+		logger.releaseEntry(entry)
 	}
 }
 
 func (logger *Logger) Warning(args ...interface{}) {
 	if logger.Level >= WarnLevel {
-		NewEntry(logger).Warn(args...)
+		entry := logger.newEntry()
+		entry.Warn(args...)
+		logger.releaseEntry(entry)
 	}
 }
 
 func (logger *Logger) Error(args ...interface{}) {
 	if logger.Level >= ErrorLevel {
-		NewEntry(logger).Error(args...)
+		entry := logger.newEntry()
+		entry.Error(args...)
+		logger.releaseEntry(entry)
 	}
 }
 
 func (logger *Logger) Fatal(args ...interface{}) {
 	if logger.Level >= FatalLevel {
-		NewEntry(logger).Fatal(args...)
+		entry := logger.newEntry()
+		entry.Fatal(args...)
+		logger.releaseEntry(entry)
 	}
-	os.Exit(1)
+	Exit(1)
 }
 
 func (logger *Logger) Panic(args ...interface{}) {
 	if logger.Level >= PanicLevel {
-		NewEntry(logger).Panic(args...)
+		entry := logger.newEntry()
+		entry.Panic(args...)
+		logger.releaseEntry(entry)
 	}
 }
 
 func (logger *Logger) Debugln(args ...interface{}) {
 	if logger.Level >= DebugLevel {
-		NewEntry(logger).Debugln(args...)
+		entry := logger.newEntry()
+		entry.Debugln(args...)
+		logger.releaseEntry(entry)
 	}
 }
 
 func (logger *Logger) Infoln(args ...interface{}) {
 	if logger.Level >= InfoLevel {
-		NewEntry(logger).Infoln(args...)
+		entry := logger.newEntry()
+		entry.Infoln(args...)
+		logger.releaseEntry(entry)
 	}
 }
 
 func (logger *Logger) Println(args ...interface{}) {
-	NewEntry(logger).Println(args...)
+	entry := logger.newEntry()
+	entry.Println(args...)
+	logger.releaseEntry(entry)
 }
 
 func (logger *Logger) Warnln(args ...interface{}) {
 	if logger.Level >= WarnLevel {
-		NewEntry(logger).Warnln(args...)
+		entry := logger.newEntry()
+		entry.Warnln(args...)
+		logger.releaseEntry(entry)
 	}
 }
 
 func (logger *Logger) Warningln(args ...interface{}) {
 	if logger.Level >= WarnLevel {
-		NewEntry(logger).Warnln(args...)
+		entry := logger.newEntry()
+		entry.Warnln(args...)
+		logger.releaseEntry(entry)
 	}
 }
 
 func (logger *Logger) Errorln(args ...interface{}) {
 	if logger.Level >= ErrorLevel {
-		NewEntry(logger).Errorln(args...)
+		entry := logger.newEntry()
+		entry.Errorln(args...)
+		logger.releaseEntry(entry)
 	}
 }
 
 func (logger *Logger) Fatalln(args ...interface{}) {
 	if logger.Level >= FatalLevel {
-		NewEntry(logger).Fatalln(args...)
+		entry := logger.newEntry()
+		entry.Fatalln(args...)
+		logger.releaseEntry(entry)
 	}
-	os.Exit(1)
+	Exit(1)
 }
 
 func (logger *Logger) Panicln(args ...interface{}) {
 	if logger.Level >= PanicLevel {
-		NewEntry(logger).Panicln(args...)
+		entry := logger.newEntry()
+		entry.Panicln(args...)
+		logger.releaseEntry(entry)
 	}
 }
+
+//When file is opened with appending mode, it's safe to
+//write concurrently to a file (within 4k message on Linux).
+//In these cases user can choose to disable the lock.
+func (logger *Logger) SetNoLock() {
+	logger.mu.Disable()
+}

vendor/github.com/Sirupsen/logrus/terminal_appengine.go

@@ -0,0 +1,10 @@
+// +build appengine
+
+package logrus
+
+import "io"
+
+// IsTerminal returns true if stderr's file descriptor is a terminal.
+func IsTerminal(f io.Writer) bool {
+	return true
+}

vendor/github.com/Sirupsen/logrus/terminal_bsd.go

@@ -1,4 +1,5 @@
 // +build darwin freebsd openbsd netbsd dragonfly
+// +build !appengine
 
 package logrus
 

vendor/github.com/Sirupsen/logrus/terminal_linux.go

@@ -3,6 +3,8 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
+// +build !appengine
+
 package logrus
 
 import "syscall"

vendor/github.com/Sirupsen/logrus/terminal_notwindows.go

@@ -4,18 +4,25 @@
 // license that can be found in the LICENSE file.
 
 // +build linux darwin freebsd openbsd netbsd dragonfly
+// +build !appengine
 
 package logrus
 
 import (
+	"io"
+	"os"
 	"syscall"
 	"unsafe"
 )
 
 // IsTerminal returns true if stderr's file descriptor is a terminal.
-func IsTerminal() bool {
-	fd := syscall.Stderr
+func IsTerminal(f io.Writer) bool {
 	var termios Termios
-	_, _, err := syscall.Syscall6(syscall.SYS_IOCTL, uintptr(fd), ioctlReadTermios, uintptr(unsafe.Pointer(&termios)), 0, 0, 0)
-	return err == 0
+	switch v := f.(type) {
+	case *os.File:
+		_, _, err := syscall.Syscall6(syscall.SYS_IOCTL, uintptr(v.Fd()), ioctlReadTermios, uintptr(unsafe.Pointer(&termios)), 0, 0, 0)
+		return err == 0
+	default:
+		return false
+	}
 }

vendor/github.com/Sirupsen/logrus/terminal_solaris.go

@@ -1,15 +1,21 @@
-// +build solaris
+// +build solaris,!appengine
 
 package logrus
 
 import (
+	"io"
 	"os"
 
 	"golang.org/x/sys/unix"
 )
 
 // IsTerminal returns true if the given file descriptor is a terminal.
-func IsTerminal() bool {
-	_, err := unix.IoctlGetTermios(int(os.Stdout.Fd()), unix.TCGETA)
-	return err == nil
+func IsTerminal(f io.Writer) bool {
+	switch v := f.(type) {
+	case *os.File:
+		_, err := unix.IoctlGetTermios(int(v.Fd()), unix.TCGETA)
+		return err == nil
+	default:
+		return false
+	}
 }

vendor/github.com/Sirupsen/logrus/terminal_windows.go

@@ -3,11 +3,13 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build windows
+// +build windows,!appengine
 
 package logrus
 
 import (
+	"io"
+	"os"
 	"syscall"
 	"unsafe"
 )
@@ -19,9 +21,13 @@ var (
 )
 
 // IsTerminal returns true if stderr's file descriptor is a terminal.
-func IsTerminal() bool {
-	fd := syscall.Stderr
-	var st uint32
-	r, _, e := syscall.Syscall(procGetConsoleMode.Addr(), 2, uintptr(fd), uintptr(unsafe.Pointer(&st)), 0)
-	return r != 0 && e == 0
+func IsTerminal(f io.Writer) bool {
+	switch v := f.(type) {
+	case *os.File:
+		var st uint32
+		r, _, e := syscall.Syscall(procGetConsoleMode.Addr(), 2, uintptr(v.Fd()), uintptr(unsafe.Pointer(&st)), 0)
+		return r != 0 && e == 0
+	default:
+		return false
+	}
 }

vendor/github.com/Sirupsen/logrus/text_formatter.go

@@ -3,9 +3,9 @@ package logrus
 import (
 	"bytes"
 	"fmt"
-	"runtime"
 	"sort"
 	"strings"
+	"sync"
 	"time"
 )
 
@@ -20,16 +20,10 @@ const (
 
 var (
 	baseTimestamp time.Time
-	isTerminal    bool
 )
 
 func init() {
 	baseTimestamp = time.Now()
-	isTerminal = IsTerminal()
-}
-
-func miniTS() int {
-	return int(time.Since(baseTimestamp) / time.Second)
 }
 
 type TextFormatter struct {
@@ -54,10 +48,32 @@ type TextFormatter struct {
 	// that log extremely frequently and don't use the JSON formatter this may not
 	// be desired.
 	DisableSorting bool
+
+	// QuoteEmptyFields will wrap empty fields in quotes if true
+	QuoteEmptyFields bool
+
+	// QuoteCharacter can be set to the override the default quoting character "
+	// with something else. For example: ', or `.
+	QuoteCharacter string
+
+	// Whether the logger's out is to a terminal
+	isTerminal bool
+
+	sync.Once
+}
+
+func (f *TextFormatter) init(entry *Entry) {
+	if len(f.QuoteCharacter) == 0 {
+		f.QuoteCharacter = "\""
+	}
+	if entry.Logger != nil {
+		f.isTerminal = IsTerminal(entry.Logger.Out)
+	}
 }
 
 func (f *TextFormatter) Format(entry *Entry) ([]byte, error) {
-	var keys []string = make([]string, 0, len(entry.Data))
+	var b *bytes.Buffer
+	keys := make([]string, 0, len(entry.Data))
 	for k := range entry.Data {
 		keys = append(keys, k)
 	}
@@ -65,13 +81,17 @@ func (f *TextFormatter) Format(entry *Entry) ([]byte, error) {
 	if !f.DisableSorting {
 		sort.Strings(keys)
 	}
-
-	b := &bytes.Buffer{}
+	if entry.Buffer != nil {
+		b = entry.Buffer
+	} else {
+		b = &bytes.Buffer{}
+	}
 
 	prefixFieldClashes(entry.Data)
 
-	isColorTerminal := isTerminal && (runtime.GOOS != "windows")
-	isColored := (f.ForceColors || isColorTerminal) && !f.DisableColors
+	f.Do(func() { f.init(entry) })
+
+	isColored := (f.ForceColors || f.isTerminal) && !f.DisableColors
 
 	timestampFormat := f.TimestampFormat
 	if timestampFormat == "" {
@@ -111,51 +131,59 @@ func (f *TextFormatter) printColored(b *bytes.Buffer, entry *Entry, keys []strin
 
 	levelText := strings.ToUpper(entry.Level.String())[0:4]
 
-	if !f.FullTimestamp {
-		fmt.Fprintf(b, "\x1b[%dm%s\x1b[0m[%04d] %-44s ", levelColor, levelText, miniTS(), entry.Message)
+	if f.DisableTimestamp {
+		fmt.Fprintf(b, "\x1b[%dm%s\x1b[0m %-44s ", levelColor, levelText, entry.Message)
+	} else if !f.FullTimestamp {
+		fmt.Fprintf(b, "\x1b[%dm%s\x1b[0m[%04d] %-44s ", levelColor, levelText, int(entry.Time.Sub(baseTimestamp)/time.Second), entry.Message)
 	} else {
 		fmt.Fprintf(b, "\x1b[%dm%s\x1b[0m[%s] %-44s ", levelColor, levelText, entry.Time.Format(timestampFormat), entry.Message)
 	}
 	for _, k := range keys {
 		v := entry.Data[k]
-		fmt.Fprintf(b, " \x1b[%dm%s\x1b[0m=%+v", levelColor, k, v)
+		fmt.Fprintf(b, " \x1b[%dm%s\x1b[0m=", levelColor, k)
+		f.appendValue(b, v)
 	}
 }
 
-func needsQuoting(text string) bool {
+func (f *TextFormatter) needsQuoting(text string) bool {
+	if f.QuoteEmptyFields && len(text) == 0 {
+		return true
+	}
 	for _, ch := range text {
 		if !((ch >= 'a' && ch <= 'z') ||
 			(ch >= 'A' && ch <= 'Z') ||
 			(ch >= '0' && ch <= '9') ||
 			ch == '-' || ch == '.') {
-			return false
+			return true
 		}
 	}
-	return true
+	return false
 }
 
 func (f *TextFormatter) appendKeyValue(b *bytes.Buffer, key string, value interface{}) {
 
 	b.WriteString(key)
 	b.WriteByte('=')
+	f.appendValue(b, value)
+	b.WriteByte(' ')
+}
 
+func (f *TextFormatter) appendValue(b *bytes.Buffer, value interface{}) {
 	switch value := value.(type) {
 	case string:
-		if needsQuoting(value) {
+		if !f.needsQuoting(value) {
 			b.WriteString(value)
 		} else {
-			fmt.Fprintf(b, "%q", value)
+			fmt.Fprintf(b, "%s%v%s", f.QuoteCharacter, value, f.QuoteCharacter)
 		}
 	case error:
 		errmsg := value.Error()
-		if needsQuoting(errmsg) {
+		if !f.needsQuoting(errmsg) {
 			b.WriteString(errmsg)
 		} else {
-			fmt.Fprintf(b, "%q", value)
+			fmt.Fprintf(b, "%s%v%s", f.QuoteCharacter, errmsg, f.QuoteCharacter)
 		}
 	default:
 		fmt.Fprint(b, value)
 	}
-
-	b.WriteByte(' ')
 }

vendor/github.com/Sirupsen/logrus/writer.go

@@ -7,21 +7,52 @@ import (
 )
 
 func (logger *Logger) Writer() *io.PipeWriter {
+	return logger.WriterLevel(InfoLevel)
+}
+
+func (logger *Logger) WriterLevel(level Level) *io.PipeWriter {
+	return NewEntry(logger).WriterLevel(level)
+}
+
+func (entry *Entry) Writer() *io.PipeWriter {
+	return entry.WriterLevel(InfoLevel)
+}
+
+func (entry *Entry) WriterLevel(level Level) *io.PipeWriter {
 	reader, writer := io.Pipe()
 
-	go logger.writerScanner(reader)
+	var printFunc func(args ...interface{})
+
+	switch level {
+	case DebugLevel:
+		printFunc = entry.Debug
+	case InfoLevel:
+		printFunc = entry.Info
+	case WarnLevel:
+		printFunc = entry.Warn
+	case ErrorLevel:
+		printFunc = entry.Error
+	case FatalLevel:
+		printFunc = entry.Fatal
+	case PanicLevel:
+		printFunc = entry.Panic
+	default:
+		printFunc = entry.Print
+	}
+
+	go entry.writerScanner(reader, printFunc)
 	runtime.SetFinalizer(writer, writerFinalizer)
 
 	return writer
 }
 
-func (logger *Logger) writerScanner(reader *io.PipeReader) {
+func (entry *Entry) writerScanner(reader *io.PipeReader, printFunc func(args ...interface{})) {
 	scanner := bufio.NewScanner(reader)
 	for scanner.Scan() {
-		logger.Print(scanner.Text())
+		printFunc(scanner.Text())
 	}
 	if err := scanner.Err(); err != nil {
-		logger.Errorf("Error while reading from Writer: %s", err)
+		entry.Errorf("Error while reading from Writer: %s", err)
 	}
 	reader.Close()
 }

vendor/github.com/go-telegram-bot-api/telegram-bot-api/bot.go

@@ -21,8 +21,10 @@ import (
 
 // BotAPI allows you to interact with the Telegram Bot API.
 type BotAPI struct {
-	Token  string       `json:"token"`
-	Debug  bool         `json:"debug"`
+	Token  string `json:"token"`
+	Debug  bool   `json:"debug"`
+	Buffer int    `json:"buffer"`
+
 	Self   User         `json:"-"`
 	Client *http.Client `json:"-"`
 }
@@ -42,11 +44,12 @@ func NewBotAPIWithClient(token string, client *http.Client) (*BotAPI, error) {
 	bot := &BotAPI{
 		Token:  token,
 		Client: client,
+		Buffer: 100,
 	}
 
 	self, err := bot.GetMe()
 	if err != nil {
-		return &BotAPI{}, err
+		return nil, err
 	}
 
 	bot.Self = self
@@ -68,6 +71,10 @@ func (bot *BotAPI) MakeRequest(endpoint string, params url.Values) (APIResponse,
 		return APIResponse{}, errors.New(ErrAPIForbidden)
 	}
 
+	if resp.StatusCode != http.StatusOK {
+		return APIResponse{}, errors.New(http.StatusText(resp.StatusCode))
+	}
+
 	bytes, err := ioutil.ReadAll(resp.Body)
 	if err != nil {
 		return APIResponse{}, err
@@ -457,7 +464,7 @@ func (bot *BotAPI) GetWebhookInfo() (WebhookInfo, error) {
 
 // GetUpdatesChan starts and returns a channel for getting updates.
 func (bot *BotAPI) GetUpdatesChan(config UpdateConfig) (UpdatesChannel, error) {
-	ch := make(chan Update, 100)
+	ch := make(chan Update, bot.Buffer)
 
 	go func() {
 		for {
@@ -484,7 +491,7 @@ func (bot *BotAPI) GetUpdatesChan(config UpdateConfig) (UpdatesChannel, error) {
 
 // ListenForWebhook registers a http handler for a webhook.
 func (bot *BotAPI) ListenForWebhook(pattern string) UpdatesChannel {
-	ch := make(chan Update, 100)
+	ch := make(chan Update, bot.Buffer)
 
 	http.HandleFunc(pattern, func(w http.ResponseWriter, r *http.Request) {
 		bytes, _ := ioutil.ReadAll(r.Body)

vendor/github.com/go-telegram-bot-api/telegram-bot-api/configs.go

@@ -768,8 +768,8 @@ type UpdateConfig struct {
 
 // WebhookConfig contains information about a SetWebhook request.
 type WebhookConfig struct {
-	URL         *url.URL
-	Certificate interface{}
+	URL            *url.URL
+	Certificate    interface{}
 	MaxConnections int
 }
 

vendor/github.com/go-telegram-bot-api/telegram-bot-api/helpers.go

@@ -318,21 +318,6 @@ func NewWebhookWithCert(link string, file interface{}) WebhookConfig {
 	}
 }
 
-// NewWebhookWithCert creates a new webhook with a certificate and max_connections.
-//
-// link is the url you wish to get webhooks,
-// file contains a string to a file, FileReader, or FileBytes.
-// maxConnections defines maximum number of connections from telegram to your server
-func NewWebhookWithCertAndMaxConnections(link string, file interface{}, maxConnections int) WebhookConfig {
-	u, _ := url.Parse(link)
-
-	return WebhookConfig{
-		URL:         u,
-		Certificate: file,
-		MaxConnections: maxConnections,
-	}
-}
-
 // NewInlineQueryResultArticle creates a new inline query article.
 func NewInlineQueryResultArticle(id, title, messageText string) InlineQueryResultArticle {
 	return InlineQueryResultArticle{

vendor/github.com/go-telegram-bot-api/telegram-bot-api/types.go

@@ -194,7 +194,7 @@ func (m *Message) CommandArguments() string {
 		return ""
 	}
 
-	return strings.SplitN(m.Text, " ", 2)[1]
+	return split[1]
 }
 
 // MessageEntity contains information about data in a Message.

vendor/github.com/google/gops/agent/LICENSE

@@ -0,0 +1,27 @@
+Copyright (c) 2016 The Go Authors. All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+   * Redistributions of source code must retain the above copyright
+notice, this list of conditions and the following disclaimer.
+   * Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the following disclaimer
+in the documentation and/or other materials provided with the
+distribution.
+   * Neither the name of Google Inc. nor the names of its
+contributors may be used to endorse or promote products derived from
+this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

vendor/github.com/google/gops/agent/agent.go

@@ -0,0 +1,237 @@
+// Copyright 2016 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Package agent provides hooks programs can register to retrieve
+// diagnostics data by using gops.
+package agent
+
+import (
+	"fmt"
+	"io"
+	"io/ioutil"
+	"net"
+	"os"
+	gosignal "os/signal"
+	"runtime"
+	"runtime/pprof"
+	"runtime/trace"
+	"strconv"
+	"sync"
+	"time"
+
+	"bufio"
+
+	"github.com/google/gops/internal"
+	"github.com/google/gops/signal"
+	"github.com/kardianos/osext"
+)
+
+const defaultAddr = "127.0.0.1:0"
+
+var (
+	mu       sync.Mutex
+	portfile string
+	listener net.Listener
+
+	units = []string{" bytes", "KB", "MB", "GB", "TB", "PB"}
+)
+
+// Options allows configuring the started agent.
+type Options struct {
+	// Addr is the host:port the agent will be listening at.
+	// Optional.
+	Addr string
+
+	// NoShutdownCleanup tells the agent not to automatically cleanup
+	// resources if the running process receives an interrupt.
+	// Optional.
+	NoShutdownCleanup bool
+}
+
+// Listen starts the gops agent on a host process. Once agent started, users
+// can use the advanced gops features. The agent will listen to Interrupt
+// signals and exit the process, if you need to perform further work on the
+// Interrupt signal use the options parameter to configure the agent
+// accordingly.
+//
+// Note: The agent exposes an endpoint via a TCP connection that can be used by
+// any program on the system. Review your security requirements before starting
+// the agent.
+func Listen(opts *Options) error {
+	mu.Lock()
+	defer mu.Unlock()
+
+	if opts == nil {
+		opts = &Options{}
+	}
+	if portfile != "" {
+		return fmt.Errorf("gops: agent already listening at: %v", listener.Addr())
+	}
+
+	gopsdir, err := internal.ConfigDir()
+	if err != nil {
+		return err
+	}
+	err = os.MkdirAll(gopsdir, os.ModePerm)
+	if err != nil {
+		return err
+	}
+	if !opts.NoShutdownCleanup {
+		gracefulShutdown()
+	}
+
+	addr := opts.Addr
+	if addr == "" {
+		addr = defaultAddr
+	}
+	ln, err := net.Listen("tcp", addr)
+	if err != nil {
+		return err
+	}
+	listener = ln
+	port := listener.Addr().(*net.TCPAddr).Port
+	portfile = fmt.Sprintf("%s/%d", gopsdir, os.Getpid())
+	err = ioutil.WriteFile(portfile, []byte(strconv.Itoa(port)), os.ModePerm)
+	if err != nil {
+		return err
+	}
+
+	go listen()
+	return nil
+}
+
+func listen() {
+	buf := make([]byte, 1)
+	for {
+		fd, err := listener.Accept()
+		if err != nil {
+			fmt.Fprintf(os.Stderr, "gops: %v", err)
+			if netErr, ok := err.(net.Error); ok && !netErr.Temporary() {
+				break
+			}
+			continue
+		}
+		if _, err := fd.Read(buf); err != nil {
+			fmt.Fprintf(os.Stderr, "gops: %v", err)
+			continue
+		}
+		if err := handle(fd, buf); err != nil {
+			fmt.Fprintf(os.Stderr, "gops: %v", err)
+			continue
+		}
+		fd.Close()
+	}
+}
+
+func gracefulShutdown() {
+	c := make(chan os.Signal, 1)
+	gosignal.Notify(c, os.Interrupt)
+	go func() {
+		// cleanup the socket on shutdown.
+		<-c
+		Close()
+		os.Exit(1)
+	}()
+}
+
+// Close closes the agent, removing temporary files and closing the TCP listener.
+// If no agent is listening, Close does nothing.
+func Close() {
+	mu.Lock()
+	defer mu.Unlock()
+
+	if portfile != "" {
+		os.Remove(portfile)
+		portfile = ""
+	}
+	if listener != nil {
+		listener.Close()
+	}
+}
+
+func formatBytes(val uint64) string {
+	var i int
+	var target uint64
+	for i = range units {
+		target = 1 << uint(10*(i+1))
+		if val < target {
+			break
+		}
+	}
+	if i > 0 {
+		return fmt.Sprintf("%0.2f%s (%d bytes)", float64(val)/(float64(target)/1024), units[i], val)
+	}
+	return fmt.Sprintf("%d bytes", val)
+}
+
+func handle(conn io.Writer, msg []byte) error {
+	switch msg[0] {
+	case signal.StackTrace:
+		return pprof.Lookup("goroutine").WriteTo(conn, 2)
+	case signal.GC:
+		runtime.GC()
+		_, err := conn.Write([]byte("ok"))
+		return err
+	case signal.MemStats:
+		var s runtime.MemStats
+		runtime.ReadMemStats(&s)
+		fmt.Fprintf(conn, "alloc: %v\n", formatBytes(s.Alloc))
+		fmt.Fprintf(conn, "total-alloc: %v\n", formatBytes(s.TotalAlloc))
+		fmt.Fprintf(conn, "sys: %v\n", formatBytes(s.Sys))
+		fmt.Fprintf(conn, "lookups: %v\n", s.Lookups)
+		fmt.Fprintf(conn, "mallocs: %v\n", s.Mallocs)
+		fmt.Fprintf(conn, "frees: %v\n", s.Frees)
+		fmt.Fprintf(conn, "heap-alloc: %v\n", formatBytes(s.HeapAlloc))
+		fmt.Fprintf(conn, "heap-sys: %v\n", formatBytes(s.HeapSys))
+		fmt.Fprintf(conn, "heap-idle: %v\n", formatBytes(s.HeapIdle))
+		fmt.Fprintf(conn, "heap-in-use: %v\n", formatBytes(s.HeapInuse))
+		fmt.Fprintf(conn, "heap-released: %v\n", formatBytes(s.HeapReleased))
+		fmt.Fprintf(conn, "heap-objects: %v\n", s.HeapObjects)
+		fmt.Fprintf(conn, "stack-in-use: %v\n", formatBytes(s.StackInuse))
+		fmt.Fprintf(conn, "stack-sys: %v\n", formatBytes(s.StackSys))
+		fmt.Fprintf(conn, "next-gc: when heap-alloc >= %v\n", formatBytes(s.NextGC))
+		lastGC := "-"
+		if s.LastGC != 0 {
+			lastGC = fmt.Sprint(time.Unix(0, int64(s.LastGC)))
+		}
+		fmt.Fprintf(conn, "last-gc: %v\n", lastGC)
+		fmt.Fprintf(conn, "gc-pause: %v\n", time.Duration(s.PauseTotalNs))
+		fmt.Fprintf(conn, "num-gc: %v\n", s.NumGC)
+		fmt.Fprintf(conn, "enable-gc: %v\n", s.EnableGC)
+		fmt.Fprintf(conn, "debug-gc: %v\n", s.DebugGC)
+	case signal.Version:
+		fmt.Fprintf(conn, "%v\n", runtime.Version())
+	case signal.HeapProfile:
+		pprof.WriteHeapProfile(conn)
+	case signal.CPUProfile:
+		if err := pprof.StartCPUProfile(conn); err != nil {
+			return err
+		}
+		time.Sleep(30 * time.Second)
+		pprof.StopCPUProfile()
+	case signal.Stats:
+		fmt.Fprintf(conn, "goroutines: %v\n", runtime.NumGoroutine())
+		fmt.Fprintf(conn, "OS threads: %v\n", pprof.Lookup("threadcreate").Count())
+		fmt.Fprintf(conn, "GOMAXPROCS: %v\n", runtime.GOMAXPROCS(0))
+		fmt.Fprintf(conn, "num CPU: %v\n", runtime.NumCPU())
+	case signal.BinaryDump:
+		path, err := osext.Executable()
+		if err != nil {
+			return err
+		}
+		f, err := os.Open(path)
+		if err != nil {
+			return err
+		}
+		defer f.Close()
+
+		_, err = bufio.NewReader(f).WriteTo(conn)
+		return err
+	case signal.Trace:
+		trace.Start(conn)
+		time.Sleep(5 * time.Second)
+		trace.Stop()
+	}
+	return nil
+}

vendor/github.com/google/gops/internal/LICENSE

@@ -0,0 +1,27 @@
+Copyright (c) 2016 The Go Authors. All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+   * Redistributions of source code must retain the above copyright
+notice, this list of conditions and the following disclaimer.
+   * Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the following disclaimer
+in the documentation and/or other materials provided with the
+distribution.
+   * Neither the name of Google Inc. nor the names of its
+contributors may be used to endorse or promote products derived from
+this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

vendor/github.com/google/gops/internal/dwarf/dwarf.go

@@ -0,0 +1,600 @@
+// Copyright 2016 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Package dwarf generates DWARF debugging information.
+// DWARF generation is split between the compiler and the linker,
+// this package contains the shared code.
+package dwarf
+
+import (
+	"fmt"
+)
+
+// InfoPrefix is the prefix for all the symbols containing DWARF info entries.
+const InfoPrefix = "go.info."
+
+// Sym represents a symbol.
+type Sym interface {
+}
+
+// A Var represents a local variable or a function parameter.
+type Var struct {
+	Name   string
+	Abbrev int // Either DW_ABRV_AUTO or DW_ABRV_PARAM
+	Offset int32
+	Type   Sym
+	Link   *Var
+}
+
+// A Context specifies how to add data to a Sym.
+type Context interface {
+	PtrSize() int
+	AddInt(s Sym, size int, i int64)
+	AddBytes(s Sym, b []byte)
+	AddAddress(s Sym, t interface{}, ofs int64)
+	AddSectionOffset(s Sym, size int, t interface{}, ofs int64)
+	AddString(s Sym, v string)
+	SymValue(s Sym) int64
+}
+
+// AppendUleb128 appends v to b using DWARF's unsigned LEB128 encoding.
+func AppendUleb128(b []byte, v uint64) []byte {
+	for {
+		c := uint8(v & 0x7f)
+		v >>= 7
+		if v != 0 {
+			c |= 0x80
+		}
+		b = append(b, c)
+		if c&0x80 == 0 {
+			break
+		}
+	}
+	return b
+}
+
+// AppendSleb128 appends v to b using DWARF's signed LEB128 encoding.
+func AppendSleb128(b []byte, v int64) []byte {
+	for {
+		c := uint8(v & 0x7f)
+		s := uint8(v & 0x40)
+		v >>= 7
+		if (v != -1 || s == 0) && (v != 0 || s != 0) {
+			c |= 0x80
+		}
+		b = append(b, c)
+		if c&0x80 == 0 {
+			break
+		}
+	}
+	return b
+}
+
+var encbuf [20]byte
+
+// AppendUleb128 appends v to s using DWARF's unsigned LEB128 encoding.
+func Uleb128put(ctxt Context, s Sym, v int64) {
+	b := AppendUleb128(encbuf[:0], uint64(v))
+	ctxt.AddBytes(s, b)
+}
+
+// AppendUleb128 appends v to s using DWARF's signed LEB128 encoding.
+func Sleb128put(ctxt Context, s Sym, v int64) {
+	b := AppendSleb128(encbuf[:0], v)
+	ctxt.AddBytes(s, b)
+}
+
+/*
+ * Defining Abbrevs.  This is hardcoded, and there will be
+ * only a handful of them.  The DWARF spec places no restriction on
+ * the ordering of attributes in the Abbrevs and DIEs, and we will
+ * always write them out in the order of declaration in the abbrev.
+ */
+type dwAttrForm struct {
+	attr uint16
+	form uint8
+}
+
+// Go-specific type attributes.
+const (
+	DW_AT_go_kind = 0x2900
+	DW_AT_go_key  = 0x2901
+	DW_AT_go_elem = 0x2902
+
+	DW_AT_internal_location = 253 // params and locals; not emitted
+)
+
+// Index into the abbrevs table below.
+// Keep in sync with ispubname() and ispubtype() below.
+// ispubtype considers >= NULLTYPE public
+const (
+	DW_ABRV_NULL = iota
+	DW_ABRV_COMPUNIT
+	DW_ABRV_FUNCTION
+	DW_ABRV_VARIABLE
+	DW_ABRV_AUTO
+	DW_ABRV_PARAM
+	DW_ABRV_STRUCTFIELD
+	DW_ABRV_FUNCTYPEPARAM
+	DW_ABRV_DOTDOTDOT
+	DW_ABRV_ARRAYRANGE
+	DW_ABRV_NULLTYPE
+	DW_ABRV_BASETYPE
+	DW_ABRV_ARRAYTYPE
+	DW_ABRV_CHANTYPE
+	DW_ABRV_FUNCTYPE
+	DW_ABRV_IFACETYPE
+	DW_ABRV_MAPTYPE
+	DW_ABRV_PTRTYPE
+	DW_ABRV_BARE_PTRTYPE // only for void*, no DW_AT_type attr to please gdb 6.
+	DW_ABRV_SLICETYPE
+	DW_ABRV_STRINGTYPE
+	DW_ABRV_STRUCTTYPE
+	DW_ABRV_TYPEDECL
+	DW_NABRV
+)
+
+type dwAbbrev struct {
+	tag      uint8
+	children uint8
+	attr     []dwAttrForm
+}
+
+var abbrevs = [DW_NABRV]dwAbbrev{
+	/* The mandatory DW_ABRV_NULL entry. */
+	{0, 0, []dwAttrForm{}},
+
+	/* COMPUNIT */
+	{
+		DW_TAG_compile_unit,
+		DW_CHILDREN_yes,
+		[]dwAttrForm{
+			{DW_AT_name, DW_FORM_string},
+			{DW_AT_language, DW_FORM_data1},
+			{DW_AT_low_pc, DW_FORM_addr},
+			{DW_AT_high_pc, DW_FORM_addr},
+			{DW_AT_stmt_list, DW_FORM_data4},
+			{DW_AT_comp_dir, DW_FORM_string},
+		},
+	},
+
+	/* FUNCTION */
+	{
+		DW_TAG_subprogram,
+		DW_CHILDREN_yes,
+		[]dwAttrForm{
+			{DW_AT_name, DW_FORM_string},
+			{DW_AT_low_pc, DW_FORM_addr},
+			{DW_AT_high_pc, DW_FORM_addr},
+			{DW_AT_external, DW_FORM_flag},
+		},
+	},
+
+	/* VARIABLE */
+	{
+		DW_TAG_variable,
+		DW_CHILDREN_no,
+		[]dwAttrForm{
+			{DW_AT_name, DW_FORM_string},
+			{DW_AT_location, DW_FORM_block1},
+			{DW_AT_type, DW_FORM_ref_addr},
+			{DW_AT_external, DW_FORM_flag},
+		},
+	},
+
+	/* AUTO */
+	{
+		DW_TAG_variable,
+		DW_CHILDREN_no,
+		[]dwAttrForm{
+			{DW_AT_name, DW_FORM_string},
+			{DW_AT_location, DW_FORM_block1},
+			{DW_AT_type, DW_FORM_ref_addr},
+		},
+	},
+
+	/* PARAM */
+	{
+		DW_TAG_formal_parameter,
+		DW_CHILDREN_no,
+		[]dwAttrForm{
+			{DW_AT_name, DW_FORM_string},
+			{DW_AT_location, DW_FORM_block1},
+			{DW_AT_type, DW_FORM_ref_addr},
+		},
+	},
+
+	/* STRUCTFIELD */
+	{
+		DW_TAG_member,
+		DW_CHILDREN_no,
+		[]dwAttrForm{
+			{DW_AT_name, DW_FORM_string},
+			{DW_AT_data_member_location, DW_FORM_block1},
+			{DW_AT_type, DW_FORM_ref_addr},
+		},
+	},
+
+	/* FUNCTYPEPARAM */
+	{
+		DW_TAG_formal_parameter,
+		DW_CHILDREN_no,
+
+		// No name!
+		[]dwAttrForm{
+			{DW_AT_type, DW_FORM_ref_addr},
+		},
+	},
+
+	/* DOTDOTDOT */
+	{
+		DW_TAG_unspecified_parameters,
+		DW_CHILDREN_no,
+		[]dwAttrForm{},
+	},
+
+	/* ARRAYRANGE */
+	{
+		DW_TAG_subrange_type,
+		DW_CHILDREN_no,
+
+		// No name!
+		[]dwAttrForm{
+			{DW_AT_type, DW_FORM_ref_addr},
+			{DW_AT_count, DW_FORM_udata},
+		},
+	},
+
+	// Below here are the types considered public by ispubtype
+	/* NULLTYPE */
+	{
+		DW_TAG_unspecified_type,
+		DW_CHILDREN_no,
+		[]dwAttrForm{
+			{DW_AT_name, DW_FORM_string},
+		},
+	},
+
+	/* BASETYPE */
+	{
+		DW_TAG_base_type,
+		DW_CHILDREN_no,
+		[]dwAttrForm{
+			{DW_AT_name, DW_FORM_string},
+			{DW_AT_encoding, DW_FORM_data1},
+			{DW_AT_byte_size, DW_FORM_data1},
+			{DW_AT_go_kind, DW_FORM_data1},
+		},
+	},
+
+	/* ARRAYTYPE */
+	// child is subrange with upper bound
+	{
+		DW_TAG_array_type,
+		DW_CHILDREN_yes,
+		[]dwAttrForm{
+			{DW_AT_name, DW_FORM_string},
+			{DW_AT_type, DW_FORM_ref_addr},
+			{DW_AT_byte_size, DW_FORM_udata},
+			{DW_AT_go_kind, DW_FORM_data1},
+		},
+	},
+
+	/* CHANTYPE */
+	{
+		DW_TAG_typedef,
+		DW_CHILDREN_no,
+		[]dwAttrForm{
+			{DW_AT_name, DW_FORM_string},
+			{DW_AT_type, DW_FORM_ref_addr},
+			{DW_AT_go_kind, DW_FORM_data1},
+			{DW_AT_go_elem, DW_FORM_ref_addr},
+		},
+	},
+
+	/* FUNCTYPE */
+	{
+		DW_TAG_subroutine_type,
+		DW_CHILDREN_yes,
+		[]dwAttrForm{
+			{DW_AT_name, DW_FORM_string},
+			// {DW_AT_type,	DW_FORM_ref_addr},
+			{DW_AT_go_kind, DW_FORM_data1},
+		},
+	},
+
+	/* IFACETYPE */
+	{
+		DW_TAG_typedef,
+		DW_CHILDREN_yes,
+		[]dwAttrForm{
+			{DW_AT_name, DW_FORM_string},
+			{DW_AT_type, DW_FORM_ref_addr},
+			{DW_AT_go_kind, DW_FORM_data1},
+		},
+	},
+
+	/* MAPTYPE */
+	{
+		DW_TAG_typedef,
+		DW_CHILDREN_no,
+		[]dwAttrForm{
+			{DW_AT_name, DW_FORM_string},
+			{DW_AT_type, DW_FORM_ref_addr},
+			{DW_AT_go_kind, DW_FORM_data1},
+			{DW_AT_go_key, DW_FORM_ref_addr},
+			{DW_AT_go_elem, DW_FORM_ref_addr},
+		},
+	},
+
+	/* PTRTYPE */
+	{
+		DW_TAG_pointer_type,
+		DW_CHILDREN_no,
+		[]dwAttrForm{
+			{DW_AT_name, DW_FORM_string},
+			{DW_AT_type, DW_FORM_ref_addr},
+			{DW_AT_go_kind, DW_FORM_data1},
+		},
+	},
+
+	/* BARE_PTRTYPE */
+	{
+		DW_TAG_pointer_type,
+		DW_CHILDREN_no,
+		[]dwAttrForm{
+			{DW_AT_name, DW_FORM_string},
+		},
+	},
+
+	/* SLICETYPE */
+	{
+		DW_TAG_structure_type,
+		DW_CHILDREN_yes,
+		[]dwAttrForm{
+			{DW_AT_name, DW_FORM_string},
+			{DW_AT_byte_size, DW_FORM_udata},
+			{DW_AT_go_kind, DW_FORM_data1},
+			{DW_AT_go_elem, DW_FORM_ref_addr},
+		},
+	},
+
+	/* STRINGTYPE */
+	{
+		DW_TAG_structure_type,
+		DW_CHILDREN_yes,
+		[]dwAttrForm{
+			{DW_AT_name, DW_FORM_string},
+			{DW_AT_byte_size, DW_FORM_udata},
+			{DW_AT_go_kind, DW_FORM_data1},
+		},
+	},
+
+	/* STRUCTTYPE */
+	{
+		DW_TAG_structure_type,
+		DW_CHILDREN_yes,
+		[]dwAttrForm{
+			{DW_AT_name, DW_FORM_string},
+			{DW_AT_byte_size, DW_FORM_udata},
+			{DW_AT_go_kind, DW_FORM_data1},
+		},
+	},
+
+	/* TYPEDECL */
+	{
+		DW_TAG_typedef,
+		DW_CHILDREN_no,
+		[]dwAttrForm{
+			{DW_AT_name, DW_FORM_string},
+			{DW_AT_type, DW_FORM_ref_addr},
+		},
+	},
+}
+
+// GetAbbrev returns the contents of the .debug_abbrev section.
+func GetAbbrev() []byte {
+	var buf []byte
+	for i := 1; i < DW_NABRV; i++ {
+		// See section 7.5.3
+		buf = AppendUleb128(buf, uint64(i))
+
+		buf = AppendUleb128(buf, uint64(abbrevs[i].tag))
+		buf = append(buf, byte(abbrevs[i].children))
+		for _, f := range abbrevs[i].attr {
+			buf = AppendUleb128(buf, uint64(f.attr))
+			buf = AppendUleb128(buf, uint64(f.form))
+		}
+		buf = append(buf, 0, 0)
+	}
+	return append(buf, 0)
+}
+
+/*
+ * Debugging Information Entries and their attributes.
+ */
+
+// DWAttr represents an attribute of a DWDie.
+//
+// For DW_CLS_string and _block, value should contain the length, and
+// data the data, for _reference, value is 0 and data is a DWDie* to
+// the referenced instance, for all others, value is the whole thing
+// and data is null.
+type DWAttr struct {
+	Link  *DWAttr
+	Atr   uint16 // DW_AT_
+	Cls   uint8  // DW_CLS_
+	Value int64
+	Data  interface{}
+}
+
+// DWDie represents a DWARF debug info entry.
+type DWDie struct {
+	Abbrev int
+	Link   *DWDie
+	Child  *DWDie
+	Attr   *DWAttr
+	Sym    Sym
+}
+
+func putattr(ctxt Context, s Sym, abbrev int, form int, cls int, value int64, data interface{}) error {
+	switch form {
+	case DW_FORM_addr: // address
+		ctxt.AddAddress(s, data, value)
+
+	case DW_FORM_block1: // block
+		if cls == DW_CLS_ADDRESS {
+			ctxt.AddInt(s, 1, int64(1+ctxt.PtrSize()))
+			ctxt.AddInt(s, 1, DW_OP_addr)
+			ctxt.AddAddress(s, data, 0)
+			break
+		}
+
+		value &= 0xff
+		ctxt.AddInt(s, 1, value)
+		p := data.([]byte)[:value]
+		ctxt.AddBytes(s, p)
+
+	case DW_FORM_block2: // block
+		value &= 0xffff
+
+		ctxt.AddInt(s, 2, value)
+		p := data.([]byte)[:value]
+		ctxt.AddBytes(s, p)
+
+	case DW_FORM_block4: // block
+		value &= 0xffffffff
+
+		ctxt.AddInt(s, 4, value)
+		p := data.([]byte)[:value]
+		ctxt.AddBytes(s, p)
+
+	case DW_FORM_block: // block
+		Uleb128put(ctxt, s, value)
+
+		p := data.([]byte)[:value]
+		ctxt.AddBytes(s, p)
+
+	case DW_FORM_data1: // constant
+		ctxt.AddInt(s, 1, value)
+
+	case DW_FORM_data2: // constant
+		ctxt.AddInt(s, 2, value)
+
+	case DW_FORM_data4: // constant, {line,loclist,mac,rangelist}ptr
+		if cls == DW_CLS_PTR { // DW_AT_stmt_list
+			ctxt.AddSectionOffset(s, 4, data, 0)
+			break
+		}
+		ctxt.AddInt(s, 4, value)
+
+	case DW_FORM_data8: // constant, {line,loclist,mac,rangelist}ptr
+		ctxt.AddInt(s, 8, value)
+
+	case DW_FORM_sdata: // constant
+		Sleb128put(ctxt, s, value)
+
+	case DW_FORM_udata: // constant
+		Uleb128put(ctxt, s, value)
+
+	case DW_FORM_string: // string
+		str := data.(string)
+		ctxt.AddString(s, str)
+		// TODO(ribrdb): verify padded strings are never used and remove this
+		for i := int64(len(str)); i < value; i++ {
+			ctxt.AddInt(s, 1, 0)
+		}
+
+	case DW_FORM_flag: // flag
+		if value != 0 {
+			ctxt.AddInt(s, 1, 1)
+		} else {
+			ctxt.AddInt(s, 1, 0)
+		}
+
+	// In DWARF 2 (which is what we claim to generate),
+	// the ref_addr is the same size as a normal address.
+	// In DWARF 3 it is always 32 bits, unless emitting a large
+	// (> 4 GB of debug info aka "64-bit") unit, which we don't implement.
+	case DW_FORM_ref_addr: // reference to a DIE in the .info section
+		if data == nil {
+			return fmt.Errorf("dwarf: null reference in %d", abbrev)
+		} else {
+			ctxt.AddSectionOffset(s, ctxt.PtrSize(), data, 0)
+		}
+
+	case DW_FORM_ref1, // reference within the compilation unit
+		DW_FORM_ref2,      // reference
+		DW_FORM_ref4,      // reference
+		DW_FORM_ref8,      // reference
+		DW_FORM_ref_udata, // reference
+
+		DW_FORM_strp,     // string
+		DW_FORM_indirect: // (see Section 7.5.3)
+		fallthrough
+	default:
+		return fmt.Errorf("dwarf: unsupported attribute form %d / class %d", form, cls)
+	}
+	return nil
+}
+
+// PutAttrs writes the attributes for a DIE to symbol 's'.
+//
+// Note that we can (and do) add arbitrary attributes to a DIE, but
+// only the ones actually listed in the Abbrev will be written out.
+func PutAttrs(ctxt Context, s Sym, abbrev int, attr *DWAttr) {
+Outer:
+	for _, f := range abbrevs[abbrev].attr {
+		for ap := attr; ap != nil; ap = ap.Link {
+			if ap.Atr == f.attr {
+				putattr(ctxt, s, abbrev, int(f.form), int(ap.Cls), ap.Value, ap.Data)
+				continue Outer
+			}
+		}
+
+		putattr(ctxt, s, abbrev, int(f.form), 0, 0, nil)
+	}
+}
+
+// HasChildren returns true if 'die' uses an abbrev that supports children.
+func HasChildren(die *DWDie) bool {
+	return abbrevs[die.Abbrev].children != 0
+}
+
+// PutFunc writes a DIE for a function to s.
+// It also writes child DIEs for each variable in vars.
+func PutFunc(ctxt Context, s Sym, name string, external bool, startPC Sym, size int64, vars *Var) {
+	Uleb128put(ctxt, s, DW_ABRV_FUNCTION)
+	putattr(ctxt, s, DW_ABRV_FUNCTION, DW_FORM_string, DW_CLS_STRING, int64(len(name)), name)
+	putattr(ctxt, s, DW_ABRV_FUNCTION, DW_FORM_addr, DW_CLS_ADDRESS, 0, startPC)
+	putattr(ctxt, s, DW_ABRV_FUNCTION, DW_FORM_addr, DW_CLS_ADDRESS, size+ctxt.SymValue(startPC), startPC)
+	var ev int64
+	if external {
+		ev = 1
+	}
+	putattr(ctxt, s, DW_ABRV_FUNCTION, DW_FORM_flag, DW_CLS_FLAG, ev, 0)
+	names := make(map[string]bool)
+	for v := vars; v != nil; v = v.Link {
+		var n string
+		if names[v.Name] {
+			n = fmt.Sprintf("%s#%d", v.Name, len(names))
+		} else {
+			n = v.Name
+		}
+		names[n] = true
+
+		Uleb128put(ctxt, s, int64(v.Abbrev))
+		putattr(ctxt, s, v.Abbrev, DW_FORM_string, DW_CLS_STRING, int64(len(n)), n)
+		loc := append(encbuf[:0], DW_OP_call_frame_cfa)
+		if v.Offset != 0 {
+			loc = append(loc, DW_OP_consts)
+			loc = AppendSleb128(loc, int64(v.Offset))
+			loc = append(loc, DW_OP_plus)
+		}
+		putattr(ctxt, s, v.Abbrev, DW_FORM_block1, DW_CLS_BLOCK, int64(len(loc)), loc)
+		putattr(ctxt, s, v.Abbrev, DW_FORM_ref_addr, DW_CLS_REFERENCE, 0, v.Type)
+
+	}
+	Uleb128put(ctxt, s, 0)
+}

vendor/github.com/google/gops/internal/dwarf/dwarf_defs.go

@@ -0,0 +1,483 @@
+// Copyright 2010 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package dwarf
+
+// Cut, pasted, tr-and-awk'ed from tables in
+// http://dwarfstd.org/doc/Dwarf3.pdf
+
+// Table 18
+const (
+	DW_TAG_array_type               = 0x01
+	DW_TAG_class_type               = 0x02
+	DW_TAG_entry_point              = 0x03
+	DW_TAG_enumeration_type         = 0x04
+	DW_TAG_formal_parameter         = 0x05
+	DW_TAG_imported_declaration     = 0x08
+	DW_TAG_label                    = 0x0a
+	DW_TAG_lexical_block            = 0x0b
+	DW_TAG_member                   = 0x0d
+	DW_TAG_pointer_type             = 0x0f
+	DW_TAG_reference_type           = 0x10
+	DW_TAG_compile_unit             = 0x11
+	DW_TAG_string_type              = 0x12
+	DW_TAG_structure_type           = 0x13
+	DW_TAG_subroutine_type          = 0x15
+	DW_TAG_typedef                  = 0x16
+	DW_TAG_union_type               = 0x17
+	DW_TAG_unspecified_parameters   = 0x18
+	DW_TAG_variant                  = 0x19
+	DW_TAG_common_block             = 0x1a
+	DW_TAG_common_inclusion         = 0x1b
+	DW_TAG_inheritance              = 0x1c
+	DW_TAG_inlined_subroutine       = 0x1d
+	DW_TAG_module                   = 0x1e
+	DW_TAG_ptr_to_member_type       = 0x1f
+	DW_TAG_set_type                 = 0x20
+	DW_TAG_subrange_type            = 0x21
+	DW_TAG_with_stmt                = 0x22
+	DW_TAG_access_declaration       = 0x23
+	DW_TAG_base_type                = 0x24
+	DW_TAG_catch_block              = 0x25
+	DW_TAG_const_type               = 0x26
+	DW_TAG_constant                 = 0x27
+	DW_TAG_enumerator               = 0x28
+	DW_TAG_file_type                = 0x29
+	DW_TAG_friend                   = 0x2a
+	DW_TAG_namelist                 = 0x2b
+	DW_TAG_namelist_item            = 0x2c
+	DW_TAG_packed_type              = 0x2d
+	DW_TAG_subprogram               = 0x2e
+	DW_TAG_template_type_parameter  = 0x2f
+	DW_TAG_template_value_parameter = 0x30
+	DW_TAG_thrown_type              = 0x31
+	DW_TAG_try_block                = 0x32
+	DW_TAG_variant_part             = 0x33
+	DW_TAG_variable                 = 0x34
+	DW_TAG_volatile_type            = 0x35
+	// Dwarf3
+	DW_TAG_dwarf_procedure  = 0x36
+	DW_TAG_restrict_type    = 0x37
+	DW_TAG_interface_type   = 0x38
+	DW_TAG_namespace        = 0x39
+	DW_TAG_imported_module  = 0x3a
+	DW_TAG_unspecified_type = 0x3b
+	DW_TAG_partial_unit     = 0x3c
+	DW_TAG_imported_unit    = 0x3d
+	DW_TAG_condition        = 0x3f
+	DW_TAG_shared_type      = 0x40
+	// Dwarf4
+	DW_TAG_type_unit             = 0x41
+	DW_TAG_rvalue_reference_type = 0x42
+	DW_TAG_template_alias        = 0x43
+
+	// User defined
+	DW_TAG_lo_user = 0x4080
+	DW_TAG_hi_user = 0xffff
+)
+
+// Table 19
+const (
+	DW_CHILDREN_no  = 0x00
+	DW_CHILDREN_yes = 0x01
+)
+
+// Not from the spec, but logically belongs here
+const (
+	DW_CLS_ADDRESS = 0x01 + iota
+	DW_CLS_BLOCK
+	DW_CLS_CONSTANT
+	DW_CLS_FLAG
+	DW_CLS_PTR // lineptr, loclistptr, macptr, rangelistptr
+	DW_CLS_REFERENCE
+	DW_CLS_ADDRLOC
+	DW_CLS_STRING
+)
+
+// Table 20
+const (
+	DW_AT_sibling              = 0x01 // reference
+	DW_AT_location             = 0x02 // block, loclistptr
+	DW_AT_name                 = 0x03 // string
+	DW_AT_ordering             = 0x09 // constant
+	DW_AT_byte_size            = 0x0b // block, constant, reference
+	DW_AT_bit_offset           = 0x0c // block, constant, reference
+	DW_AT_bit_size             = 0x0d // block, constant, reference
+	DW_AT_stmt_list            = 0x10 // lineptr
+	DW_AT_low_pc               = 0x11 // address
+	DW_AT_high_pc              = 0x12 // address
+	DW_AT_language             = 0x13 // constant
+	DW_AT_discr                = 0x15 // reference
+	DW_AT_discr_value          = 0x16 // constant
+	DW_AT_visibility           = 0x17 // constant
+	DW_AT_import               = 0x18 // reference
+	DW_AT_string_length        = 0x19 // block, loclistptr
+	DW_AT_common_reference     = 0x1a // reference
+	DW_AT_comp_dir             = 0x1b // string
+	DW_AT_const_value          = 0x1c // block, constant, string
+	DW_AT_containing_type      = 0x1d // reference
+	DW_AT_default_value        = 0x1e // reference
+	DW_AT_inline               = 0x20 // constant
+	DW_AT_is_optional          = 0x21 // flag
+	DW_AT_lower_bound          = 0x22 // block, constant, reference
+	DW_AT_producer             = 0x25 // string
+	DW_AT_prototyped           = 0x27 // flag
+	DW_AT_return_addr          = 0x2a // block, loclistptr
+	DW_AT_start_scope          = 0x2c // constant
+	DW_AT_bit_stride           = 0x2e // constant
+	DW_AT_upper_bound          = 0x2f // block, constant, reference
+	DW_AT_abstract_origin      = 0x31 // reference
+	DW_AT_accessibility        = 0x32 // constant
+	DW_AT_address_class        = 0x33 // constant
+	DW_AT_artificial           = 0x34 // flag
+	DW_AT_base_types           = 0x35 // reference
+	DW_AT_calling_convention   = 0x36 // constant
+	DW_AT_count                = 0x37 // block, constant, reference
+	DW_AT_data_member_location = 0x38 // block, constant, loclistptr
+	DW_AT_decl_column          = 0x39 // constant
+	DW_AT_decl_file            = 0x3a // constant
+	DW_AT_decl_line            = 0x3b // constant
+	DW_AT_declaration          = 0x3c // flag
+	DW_AT_discr_list           = 0x3d // block
+	DW_AT_encoding             = 0x3e // constant
+	DW_AT_external             = 0x3f // flag
+	DW_AT_frame_base           = 0x40 // block, loclistptr
+	DW_AT_friend               = 0x41 // reference
+	DW_AT_identifier_case      = 0x42 // constant
+	DW_AT_macro_info           = 0x43 // macptr
+	DW_AT_namelist_item        = 0x44 // block
+	DW_AT_priority             = 0x45 // reference
+	DW_AT_segment              = 0x46 // block, loclistptr
+	DW_AT_specification        = 0x47 // reference
+	DW_AT_static_link          = 0x48 // block, loclistptr
+	DW_AT_type                 = 0x49 // reference
+	DW_AT_use_location         = 0x4a // block, loclistptr
+	DW_AT_variable_parameter   = 0x4b // flag
+	DW_AT_virtuality           = 0x4c // constant
+	DW_AT_vtable_elem_location = 0x4d // block, loclistptr
+	// Dwarf3
+	DW_AT_allocated      = 0x4e // block, constant, reference
+	DW_AT_associated     = 0x4f // block, constant, reference
+	DW_AT_data_location  = 0x50 // block
+	DW_AT_byte_stride    = 0x51 // block, constant, reference
+	DW_AT_entry_pc       = 0x52 // address
+	DW_AT_use_UTF8       = 0x53 // flag
+	DW_AT_extension      = 0x54 // reference
+	DW_AT_ranges         = 0x55 // rangelistptr
+	DW_AT_trampoline     = 0x56 // address, flag, reference, string
+	DW_AT_call_column    = 0x57 // constant
+	DW_AT_call_file      = 0x58 // constant
+	DW_AT_call_line      = 0x59 // constant
+	DW_AT_description    = 0x5a // string
+	DW_AT_binary_scale   = 0x5b // constant
+	DW_AT_decimal_scale  = 0x5c // constant
+	DW_AT_small          = 0x5d // reference
+	DW_AT_decimal_sign   = 0x5e // constant
+	DW_AT_digit_count    = 0x5f // constant
+	DW_AT_picture_string = 0x60 // string
+	DW_AT_mutable        = 0x61 // flag
+	DW_AT_threads_scaled = 0x62 // flag
+	DW_AT_explicit       = 0x63 // flag
+	DW_AT_object_pointer = 0x64 // reference
+	DW_AT_endianity      = 0x65 // constant
+	DW_AT_elemental      = 0x66 // flag
+	DW_AT_pure           = 0x67 // flag
+	DW_AT_recursive      = 0x68 // flag
+
+	DW_AT_lo_user = 0x2000 // ---
+	DW_AT_hi_user = 0x3fff // ---
+)
+
+// Table 21
+const (
+	DW_FORM_addr      = 0x01 // address
+	DW_FORM_block2    = 0x03 // block
+	DW_FORM_block4    = 0x04 // block
+	DW_FORM_data2     = 0x05 // constant
+	DW_FORM_data4     = 0x06 // constant, lineptr, loclistptr, macptr, rangelistptr
+	DW_FORM_data8     = 0x07 // constant, lineptr, loclistptr, macptr, rangelistptr
+	DW_FORM_string    = 0x08 // string
+	DW_FORM_block     = 0x09 // block
+	DW_FORM_block1    = 0x0a // block
+	DW_FORM_data1     = 0x0b // constant
+	DW_FORM_flag      = 0x0c // flag
+	DW_FORM_sdata     = 0x0d // constant
+	DW_FORM_strp      = 0x0e // string
+	DW_FORM_udata     = 0x0f // constant
+	DW_FORM_ref_addr  = 0x10 // reference
+	DW_FORM_ref1      = 0x11 // reference
+	DW_FORM_ref2      = 0x12 // reference
+	DW_FORM_ref4      = 0x13 // reference
+	DW_FORM_ref8      = 0x14 // reference
+	DW_FORM_ref_udata = 0x15 // reference
+	DW_FORM_indirect  = 0x16 // (see Section 7.5.3)
+)
+
+// Table 24 (#operands, notes)
+const (
+	DW_OP_addr                = 0x03 // 1 constant address (size target specific)
+	DW_OP_deref               = 0x06 // 0
+	DW_OP_const1u             = 0x08 // 1 1-byte constant
+	DW_OP_const1s             = 0x09 // 1 1-byte constant
+	DW_OP_const2u             = 0x0a // 1 2-byte constant
+	DW_OP_const2s             = 0x0b // 1 2-byte constant
+	DW_OP_const4u             = 0x0c // 1 4-byte constant
+	DW_OP_const4s             = 0x0d // 1 4-byte constant
+	DW_OP_const8u             = 0x0e // 1 8-byte constant
+	DW_OP_const8s             = 0x0f // 1 8-byte constant
+	DW_OP_constu              = 0x10 // 1 ULEB128 constant
+	DW_OP_consts              = 0x11 // 1 SLEB128 constant
+	DW_OP_dup                 = 0x12 // 0
+	DW_OP_drop                = 0x13 // 0
+	DW_OP_over                = 0x14 // 0
+	DW_OP_pick                = 0x15 // 1 1-byte stack index
+	DW_OP_swap                = 0x16 // 0
+	DW_OP_rot                 = 0x17 // 0
+	DW_OP_xderef              = 0x18 // 0
+	DW_OP_abs                 = 0x19 // 0
+	DW_OP_and                 = 0x1a // 0
+	DW_OP_div                 = 0x1b // 0
+	DW_OP_minus               = 0x1c // 0
+	DW_OP_mod                 = 0x1d // 0
+	DW_OP_mul                 = 0x1e // 0
+	DW_OP_neg                 = 0x1f // 0
+	DW_OP_not                 = 0x20 // 0
+	DW_OP_or                  = 0x21 // 0
+	DW_OP_plus                = 0x22 // 0
+	DW_OP_plus_uconst         = 0x23 // 1 ULEB128 addend
+	DW_OP_shl                 = 0x24 // 0
+	DW_OP_shr                 = 0x25 // 0
+	DW_OP_shra                = 0x26 // 0
+	DW_OP_xor                 = 0x27 // 0
+	DW_OP_skip                = 0x2f // 1 signed 2-byte constant
+	DW_OP_bra                 = 0x28 // 1 signed 2-byte constant
+	DW_OP_eq                  = 0x29 // 0
+	DW_OP_ge                  = 0x2a // 0
+	DW_OP_gt                  = 0x2b // 0
+	DW_OP_le                  = 0x2c // 0
+	DW_OP_lt                  = 0x2d // 0
+	DW_OP_ne                  = 0x2e // 0
+	DW_OP_lit0                = 0x30 // 0 ...
+	DW_OP_lit31               = 0x4f // 0 literals 0..31 = (DW_OP_lit0 + literal)
+	DW_OP_reg0                = 0x50 // 0 ..
+	DW_OP_reg31               = 0x6f // 0 reg 0..31 = (DW_OP_reg0 + regnum)
+	DW_OP_breg0               = 0x70 // 1 ...
+	DW_OP_breg31              = 0x8f // 1 SLEB128 offset base register 0..31 = (DW_OP_breg0 + regnum)
+	DW_OP_regx                = 0x90 // 1 ULEB128 register
+	DW_OP_fbreg               = 0x91 // 1 SLEB128 offset
+	DW_OP_bregx               = 0x92 // 2 ULEB128 register followed by SLEB128 offset
+	DW_OP_piece               = 0x93 // 1 ULEB128 size of piece addressed
+	DW_OP_deref_size          = 0x94 // 1 1-byte size of data retrieved
+	DW_OP_xderef_size         = 0x95 // 1 1-byte size of data retrieved
+	DW_OP_nop                 = 0x96 // 0
+	DW_OP_push_object_address = 0x97 // 0
+	DW_OP_call2               = 0x98 // 1 2-byte offset of DIE
+	DW_OP_call4               = 0x99 // 1 4-byte offset of DIE
+	DW_OP_call_ref            = 0x9a // 1 4- or 8-byte offset of DIE
+	DW_OP_form_tls_address    = 0x9b // 0
+	DW_OP_call_frame_cfa      = 0x9c // 0
+	DW_OP_bit_piece           = 0x9d // 2
+	DW_OP_lo_user             = 0xe0
+	DW_OP_hi_user             = 0xff
+)
+
+// Table 25
+const (
+	DW_ATE_address         = 0x01
+	DW_ATE_boolean         = 0x02
+	DW_ATE_complex_float   = 0x03
+	DW_ATE_float           = 0x04
+	DW_ATE_signed          = 0x05
+	DW_ATE_signed_char     = 0x06
+	DW_ATE_unsigned        = 0x07
+	DW_ATE_unsigned_char   = 0x08
+	DW_ATE_imaginary_float = 0x09
+	DW_ATE_packed_decimal  = 0x0a
+	DW_ATE_numeric_string  = 0x0b
+	DW_ATE_edited          = 0x0c
+	DW_ATE_signed_fixed    = 0x0d
+	DW_ATE_unsigned_fixed  = 0x0e
+	DW_ATE_decimal_float   = 0x0f
+	DW_ATE_lo_user         = 0x80
+	DW_ATE_hi_user         = 0xff
+)
+
+// Table 26
+const (
+	DW_DS_unsigned           = 0x01
+	DW_DS_leading_overpunch  = 0x02
+	DW_DS_trailing_overpunch = 0x03
+	DW_DS_leading_separate   = 0x04
+	DW_DS_trailing_separate  = 0x05
+)
+
+// Table 27
+const (
+	DW_END_default = 0x00
+	DW_END_big     = 0x01
+	DW_END_little  = 0x02
+	DW_END_lo_user = 0x40
+	DW_END_hi_user = 0xff
+)
+
+// Table 28
+const (
+	DW_ACCESS_public    = 0x01
+	DW_ACCESS_protected = 0x02
+	DW_ACCESS_private   = 0x03
+)
+
+// Table 29
+const (
+	DW_VIS_local     = 0x01
+	DW_VIS_exported  = 0x02
+	DW_VIS_qualified = 0x03
+)
+
+// Table 30
+const (
+	DW_VIRTUALITY_none         = 0x00
+	DW_VIRTUALITY_virtual      = 0x01
+	DW_VIRTUALITY_pure_virtual = 0x02
+)
+
+// Table 31
+const (
+	DW_LANG_C89         = 0x0001
+	DW_LANG_C           = 0x0002
+	DW_LANG_Ada83       = 0x0003
+	DW_LANG_C_plus_plus = 0x0004
+	DW_LANG_Cobol74     = 0x0005
+	DW_LANG_Cobol85     = 0x0006
+	DW_LANG_Fortran77   = 0x0007
+	DW_LANG_Fortran90   = 0x0008
+	DW_LANG_Pascal83    = 0x0009
+	DW_LANG_Modula2     = 0x000a
+	// Dwarf3
+	DW_LANG_Java           = 0x000b
+	DW_LANG_C99            = 0x000c
+	DW_LANG_Ada95          = 0x000d
+	DW_LANG_Fortran95      = 0x000e
+	DW_LANG_PLI            = 0x000f
+	DW_LANG_ObjC           = 0x0010
+	DW_LANG_ObjC_plus_plus = 0x0011
+	DW_LANG_UPC            = 0x0012
+	DW_LANG_D              = 0x0013
+	// Dwarf4
+	DW_LANG_Python = 0x0014
+	// Dwarf5
+	DW_LANG_Go = 0x0016
+
+	DW_LANG_lo_user = 0x8000
+	DW_LANG_hi_user = 0xffff
+)
+
+// Table 32
+const (
+	DW_ID_case_sensitive   = 0x00
+	DW_ID_up_case          = 0x01
+	DW_ID_down_case        = 0x02
+	DW_ID_case_insensitive = 0x03
+)
+
+// Table 33
+const (
+	DW_CC_normal  = 0x01
+	DW_CC_program = 0x02
+	DW_CC_nocall  = 0x03
+	DW_CC_lo_user = 0x40
+	DW_CC_hi_user = 0xff
+)
+
+// Table 34
+const (
+	DW_INL_not_inlined          = 0x00
+	DW_INL_inlined              = 0x01
+	DW_INL_declared_not_inlined = 0x02
+	DW_INL_declared_inlined     = 0x03
+)
+
+// Table 35
+const (
+	DW_ORD_row_major = 0x00
+	DW_ORD_col_major = 0x01
+)
+
+// Table 36
+const (
+	DW_DSC_label = 0x00
+	DW_DSC_range = 0x01
+)
+
+// Table 37
+const (
+	DW_LNS_copy             = 0x01
+	DW_LNS_advance_pc       = 0x02
+	DW_LNS_advance_line     = 0x03
+	DW_LNS_set_file         = 0x04
+	DW_LNS_set_column       = 0x05
+	DW_LNS_negate_stmt      = 0x06
+	DW_LNS_set_basic_block  = 0x07
+	DW_LNS_const_add_pc     = 0x08
+	DW_LNS_fixed_advance_pc = 0x09
+	// Dwarf3
+	DW_LNS_set_prologue_end   = 0x0a
+	DW_LNS_set_epilogue_begin = 0x0b
+	DW_LNS_set_isa            = 0x0c
+)
+
+// Table 38
+const (
+	DW_LNE_end_sequence = 0x01
+	DW_LNE_set_address  = 0x02
+	DW_LNE_define_file  = 0x03
+	DW_LNE_lo_user      = 0x80
+	DW_LNE_hi_user      = 0xff
+)
+
+// Table 39
+const (
+	DW_MACINFO_define     = 0x01
+	DW_MACINFO_undef      = 0x02
+	DW_MACINFO_start_file = 0x03
+	DW_MACINFO_end_file   = 0x04
+	DW_MACINFO_vendor_ext = 0xff
+)
+
+// Table 40.
+const (
+	// operand,...
+	DW_CFA_nop              = 0x00
+	DW_CFA_set_loc          = 0x01 // address
+	DW_CFA_advance_loc1     = 0x02 // 1-byte delta
+	DW_CFA_advance_loc2     = 0x03 // 2-byte delta
+	DW_CFA_advance_loc4     = 0x04 // 4-byte delta
+	DW_CFA_offset_extended  = 0x05 // ULEB128 register, ULEB128 offset
+	DW_CFA_restore_extended = 0x06 // ULEB128 register
+	DW_CFA_undefined        = 0x07 // ULEB128 register
+	DW_CFA_same_value       = 0x08 // ULEB128 register
+	DW_CFA_register         = 0x09 // ULEB128 register, ULEB128 register
+	DW_CFA_remember_state   = 0x0a
+	DW_CFA_restore_state    = 0x0b
+
+	DW_CFA_def_cfa            = 0x0c // ULEB128 register, ULEB128 offset
+	DW_CFA_def_cfa_register   = 0x0d // ULEB128 register
+	DW_CFA_def_cfa_offset     = 0x0e // ULEB128 offset
+	DW_CFA_def_cfa_expression = 0x0f // BLOCK
+	DW_CFA_expression         = 0x10 // ULEB128 register, BLOCK
+	DW_CFA_offset_extended_sf = 0x11 // ULEB128 register, SLEB128 offset
+	DW_CFA_def_cfa_sf         = 0x12 // ULEB128 register, SLEB128 offset
+	DW_CFA_def_cfa_offset_sf  = 0x13 // SLEB128 offset
+	DW_CFA_val_offset         = 0x14 // ULEB128, ULEB128
+	DW_CFA_val_offset_sf      = 0x15 // ULEB128, SLEB128
+	DW_CFA_val_expression     = 0x16 // ULEB128, BLOCK
+
+	DW_CFA_lo_user = 0x1c
+	DW_CFA_hi_user = 0x3f
+
+	// Opcodes that take an addend operand.
+	DW_CFA_advance_loc = 0x1 << 6 // +delta
+	DW_CFA_offset      = 0x2 << 6 // +register (ULEB128 offset)
+	DW_CFA_restore     = 0x3 << 6 // +register
+)

vendor/github.com/google/gops/internal/goobj/read.go

@@ -0,0 +1,714 @@
+// Copyright 2013 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Package goobj implements reading of Go object files and archives.
+//
+// TODO(rsc): Decide where this package should live. (golang.org/issue/6932)
+// TODO(rsc): Decide the appropriate integer types for various fields.
+// TODO(rsc): Write tests. (File format still up in the air a little.)
+package goobj
+
+import (
+	"bufio"
+	"bytes"
+	"errors"
+	"fmt"
+	"io"
+	"strconv"
+	"strings"
+
+	"github.com/google/gops/internal/obj"
+)
+
+// A SymKind describes the kind of memory represented by a symbol.
+type SymKind int
+
+// This list is taken from include/link.h.
+
+// Defined SymKind values.
+// TODO(rsc): Give idiomatic Go names.
+// TODO(rsc): Reduce the number of symbol types in the object files.
+const (
+	// readonly, executable
+	STEXT      = SymKind(obj.STEXT)
+	SELFRXSECT = SymKind(obj.SELFRXSECT)
+
+	// readonly, non-executable
+	STYPE      = SymKind(obj.STYPE)
+	SSTRING    = SymKind(obj.SSTRING)
+	SGOSTRING  = SymKind(obj.SGOSTRING)
+	SGOFUNC    = SymKind(obj.SGOFUNC)
+	SRODATA    = SymKind(obj.SRODATA)
+	SFUNCTAB   = SymKind(obj.SFUNCTAB)
+	STYPELINK  = SymKind(obj.STYPELINK)
+	SITABLINK  = SymKind(obj.SITABLINK)
+	SSYMTAB    = SymKind(obj.SSYMTAB) // TODO: move to unmapped section
+	SPCLNTAB   = SymKind(obj.SPCLNTAB)
+	SELFROSECT = SymKind(obj.SELFROSECT)
+
+	// writable, non-executable
+	SMACHOPLT  = SymKind(obj.SMACHOPLT)
+	SELFSECT   = SymKind(obj.SELFSECT)
+	SMACHO     = SymKind(obj.SMACHO) // Mach-O __nl_symbol_ptr
+	SMACHOGOT  = SymKind(obj.SMACHOGOT)
+	SWINDOWS   = SymKind(obj.SWINDOWS)
+	SELFGOT    = SymKind(obj.SELFGOT)
+	SNOPTRDATA = SymKind(obj.SNOPTRDATA)
+	SINITARR   = SymKind(obj.SINITARR)
+	SDATA      = SymKind(obj.SDATA)
+	SBSS       = SymKind(obj.SBSS)
+	SNOPTRBSS  = SymKind(obj.SNOPTRBSS)
+	STLSBSS    = SymKind(obj.STLSBSS)
+
+	// not mapped
+	SXREF             = SymKind(obj.SXREF)
+	SMACHOSYMSTR      = SymKind(obj.SMACHOSYMSTR)
+	SMACHOSYMTAB      = SymKind(obj.SMACHOSYMTAB)
+	SMACHOINDIRECTPLT = SymKind(obj.SMACHOINDIRECTPLT)
+	SMACHOINDIRECTGOT = SymKind(obj.SMACHOINDIRECTGOT)
+	SFILE             = SymKind(obj.SFILE)
+	SFILEPATH         = SymKind(obj.SFILEPATH)
+	SCONST            = SymKind(obj.SCONST)
+	SDYNIMPORT        = SymKind(obj.SDYNIMPORT)
+	SHOSTOBJ          = SymKind(obj.SHOSTOBJ)
+)
+
+var symKindStrings = []string{
+	SBSS:              "SBSS",
+	SCONST:            "SCONST",
+	SDATA:             "SDATA",
+	SDYNIMPORT:        "SDYNIMPORT",
+	SELFROSECT:        "SELFROSECT",
+	SELFRXSECT:        "SELFRXSECT",
+	SELFSECT:          "SELFSECT",
+	SFILE:             "SFILE",
+	SFILEPATH:         "SFILEPATH",
+	SFUNCTAB:          "SFUNCTAB",
+	SGOFUNC:           "SGOFUNC",
+	SGOSTRING:         "SGOSTRING",
+	SHOSTOBJ:          "SHOSTOBJ",
+	SINITARR:          "SINITARR",
+	SMACHO:            "SMACHO",
+	SMACHOGOT:         "SMACHOGOT",
+	SMACHOINDIRECTGOT: "SMACHOINDIRECTGOT",
+	SMACHOINDIRECTPLT: "SMACHOINDIRECTPLT",
+	SMACHOPLT:         "SMACHOPLT",
+	SMACHOSYMSTR:      "SMACHOSYMSTR",
+	SMACHOSYMTAB:      "SMACHOSYMTAB",
+	SNOPTRBSS:         "SNOPTRBSS",
+	SNOPTRDATA:        "SNOPTRDATA",
+	SPCLNTAB:          "SPCLNTAB",
+	SRODATA:           "SRODATA",
+	SSTRING:           "SSTRING",
+	SSYMTAB:           "SSYMTAB",
+	STEXT:             "STEXT",
+	STLSBSS:           "STLSBSS",
+	STYPE:             "STYPE",
+	STYPELINK:         "STYPELINK",
+	SITABLINK:         "SITABLINK",
+	SWINDOWS:          "SWINDOWS",
+	SXREF:             "SXREF",
+}
+
+func (k SymKind) String() string {
+	if k < 0 || int(k) >= len(symKindStrings) {
+		return fmt.Sprintf("SymKind(%d)", k)
+	}
+	return symKindStrings[k]
+}
+
+// A Sym is a named symbol in an object file.
+type Sym struct {
+	SymID         // symbol identifier (name and version)
+	Kind  SymKind // kind of symbol
+	DupOK bool    // are duplicate definitions okay?
+	Size  int     // size of corresponding data
+	Type  SymID   // symbol for Go type information
+	Data  Data    // memory image of symbol
+	Reloc []Reloc // relocations to apply to Data
+	Func  *Func   // additional data for functions
+}
+
+// A SymID - the combination of Name and Version - uniquely identifies
+// a symbol within a package.
+type SymID struct {
+	// Name is the name of a symbol.
+	Name string
+
+	// Version is zero for symbols with global visibility.
+	// Symbols with only file visibility (such as file-level static
+	// declarations in C) have a non-zero version distinguishing
+	// a symbol in one file from a symbol of the same name
+	// in another file
+	Version int
+}
+
+func (s SymID) String() string {
+	if s.Version == 0 {
+		return s.Name
+	}
+	return fmt.Sprintf("%s<%d>", s.Name, s.Version)
+}
+
+// A Data is a reference to data stored in an object file.
+// It records the offset and size of the data, so that a client can
+// read the data only if necessary.
+type Data struct {
+	Offset int64
+	Size   int64
+}
+
+// A Reloc describes a relocation applied to a memory image to refer
+// to an address within a particular symbol.
+type Reloc struct {
+	// The bytes at [Offset, Offset+Size) within the containing Sym
+	// should be updated to refer to the address Add bytes after the start
+	// of the symbol Sym.
+	Offset int
+	Size   int
+	Sym    SymID
+	Add    int
+
+	// The Type records the form of address expected in the bytes
+	// described by the previous fields: absolute, PC-relative, and so on.
+	// TODO(rsc): The interpretation of Type is not exposed by this package.
+	Type obj.RelocType
+}
+
+// A Var describes a variable in a function stack frame: a declared
+// local variable, an input argument, or an output result.
+type Var struct {
+	// The combination of Name, Kind, and Offset uniquely
+	// identifies a variable in a function stack frame.
+	// Using fewer of these - in particular, using only Name - does not.
+	Name   string // Name of variable.
+	Kind   int    // TODO(rsc): Define meaning.
+	Offset int    // Frame offset. TODO(rsc): Define meaning.
+
+	Type SymID // Go type for variable.
+}
+
+// Func contains additional per-symbol information specific to functions.
+type Func struct {
+	Args     int        // size in bytes of argument frame: inputs and outputs
+	Frame    int        // size in bytes of local variable frame
+	Leaf     bool       // function omits save of link register (ARM)
+	NoSplit  bool       // function omits stack split prologue
+	Var      []Var      // detail about local variables
+	PCSP     Data       // PC → SP offset map
+	PCFile   Data       // PC → file number map (index into File)
+	PCLine   Data       // PC → line number map
+	PCData   []Data     // PC → runtime support data map
+	FuncData []FuncData // non-PC-specific runtime support data
+	File     []string   // paths indexed by PCFile
+}
+
+// TODO: Add PCData []byte and PCDataIter (similar to liblink).
+
+// A FuncData is a single function-specific data value.
+type FuncData struct {
+	Sym    SymID // symbol holding data
+	Offset int64 // offset into symbol for funcdata pointer
+}
+
+// A Package is a parsed Go object file or archive defining a Go package.
+type Package struct {
+	ImportPath string   // import path denoting this package
+	Imports    []string // packages imported by this package
+	SymRefs    []SymID  // list of symbol names and versions referred to by this pack
+	Syms       []*Sym   // symbols defined by this package
+	MaxVersion int      // maximum Version in any SymID in Syms
+	Arch       string   // architecture
+}
+
+var (
+	archiveHeader = []byte("!<arch>\n")
+	archiveMagic  = []byte("`\n")
+	goobjHeader   = []byte("go objec") // truncated to size of archiveHeader
+
+	errCorruptArchive   = errors.New("corrupt archive")
+	errTruncatedArchive = errors.New("truncated archive")
+	errCorruptObject    = errors.New("corrupt object file")
+	errNotObject        = errors.New("unrecognized object file format")
+)
+
+// An objReader is an object file reader.
+type objReader struct {
+	p          *Package
+	b          *bufio.Reader
+	f          io.ReadSeeker
+	err        error
+	offset     int64
+	dataOffset int64
+	limit      int64
+	tmp        [256]byte
+	pkgprefix  string
+}
+
+// importPathToPrefix returns the prefix that will be used in the
+// final symbol table for the given import path.
+// We escape '%', '"', all control characters and non-ASCII bytes,
+// and any '.' after the final slash.
+//
+// See ../../../cmd/ld/lib.c:/^pathtoprefix and
+// ../../../cmd/gc/subr.c:/^pathtoprefix.
+func importPathToPrefix(s string) string {
+	// find index of last slash, if any, or else -1.
+	// used for determining whether an index is after the last slash.
+	slash := strings.LastIndex(s, "/")
+
+	// check for chars that need escaping
+	n := 0
+	for r := 0; r < len(s); r++ {
+		if c := s[r]; c <= ' ' || (c == '.' && r > slash) || c == '%' || c == '"' || c >= 0x7F {
+			n++
+		}
+	}
+
+	// quick exit
+	if n == 0 {
+		return s
+	}
+
+	// escape
+	const hex = "0123456789abcdef"
+	p := make([]byte, 0, len(s)+2*n)
+	for r := 0; r < len(s); r++ {
+		if c := s[r]; c <= ' ' || (c == '.' && r > slash) || c == '%' || c == '"' || c >= 0x7F {
+			p = append(p, '%', hex[c>>4], hex[c&0xF])
+		} else {
+			p = append(p, c)
+		}
+	}
+
+	return string(p)
+}
+
+// init initializes r to read package p from f.
+func (r *objReader) init(f io.ReadSeeker, p *Package) {
+	r.f = f
+	r.p = p
+	r.offset, _ = f.Seek(0, io.SeekCurrent)
+	r.limit, _ = f.Seek(0, io.SeekEnd)
+	f.Seek(r.offset, io.SeekStart)
+	r.b = bufio.NewReader(f)
+	r.pkgprefix = importPathToPrefix(p.ImportPath) + "."
+}
+
+// error records that an error occurred.
+// It returns only the first error, so that an error
+// caused by an earlier error does not discard information
+// about the earlier error.
+func (r *objReader) error(err error) error {
+	if r.err == nil {
+		if err == io.EOF {
+			err = io.ErrUnexpectedEOF
+		}
+		r.err = err
+	}
+	// panic("corrupt") // useful for debugging
+	return r.err
+}
+
+// readByte reads and returns a byte from the input file.
+// On I/O error or EOF, it records the error but returns byte 0.
+// A sequence of 0 bytes will eventually terminate any
+// parsing state in the object file. In particular, it ends the
+// reading of a varint.
+func (r *objReader) readByte() byte {
+	if r.err != nil {
+		return 0
+	}
+	if r.offset >= r.limit {
+		r.error(io.ErrUnexpectedEOF)
+		return 0
+	}
+	b, err := r.b.ReadByte()
+	if err != nil {
+		if err == io.EOF {
+			err = io.ErrUnexpectedEOF
+		}
+		r.error(err)
+		b = 0
+	} else {
+		r.offset++
+	}
+	return b
+}
+
+// read reads exactly len(b) bytes from the input file.
+// If an error occurs, read returns the error but also
+// records it, so it is safe for callers to ignore the result
+// as long as delaying the report is not a problem.
+func (r *objReader) readFull(b []byte) error {
+	if r.err != nil {
+		return r.err
+	}
+	if r.offset+int64(len(b)) > r.limit {
+		return r.error(io.ErrUnexpectedEOF)
+	}
+	n, err := io.ReadFull(r.b, b)
+	r.offset += int64(n)
+	if err != nil {
+		return r.error(err)
+	}
+	return nil
+}
+
+// readInt reads a zigzag varint from the input file.
+func (r *objReader) readInt() int {
+	var u uint64
+
+	for shift := uint(0); ; shift += 7 {
+		if shift >= 64 {
+			r.error(errCorruptObject)
+			return 0
+		}
+		c := r.readByte()
+		u |= uint64(c&0x7F) << shift
+		if c&0x80 == 0 {
+			break
+		}
+	}
+
+	v := int64(u>>1) ^ (int64(u) << 63 >> 63)
+	if int64(int(v)) != v {
+		r.error(errCorruptObject) // TODO
+		return 0
+	}
+	return int(v)
+}
+
+// readString reads a length-delimited string from the input file.
+func (r *objReader) readString() string {
+	n := r.readInt()
+	buf := make([]byte, n)
+	r.readFull(buf)
+	return string(buf)
+}
+
+// readSymID reads a SymID from the input file.
+func (r *objReader) readSymID() SymID {
+	i := r.readInt()
+	return r.p.SymRefs[i]
+}
+
+func (r *objReader) readRef() {
+	name, vers := r.readString(), r.readInt()
+
+	// In a symbol name in an object file, "". denotes the
+	// prefix for the package in which the object file has been found.
+	// Expand it.
+	name = strings.Replace(name, `"".`, r.pkgprefix, -1)
+
+	// An individual object file only records version 0 (extern) or 1 (static).
+	// To make static symbols unique across all files being read, we
+	// replace version 1 with the version corresponding to the current
+	// file number. The number is incremented on each call to parseObject.
+	if vers != 0 {
+		vers = r.p.MaxVersion
+	}
+	r.p.SymRefs = append(r.p.SymRefs, SymID{name, vers})
+}
+
+// readData reads a data reference from the input file.
+func (r *objReader) readData() Data {
+	n := r.readInt()
+	d := Data{Offset: r.dataOffset, Size: int64(n)}
+	r.dataOffset += int64(n)
+	return d
+}
+
+// skip skips n bytes in the input.
+func (r *objReader) skip(n int64) {
+	if n < 0 {
+		r.error(fmt.Errorf("debug/goobj: internal error: misuse of skip"))
+	}
+	if n < int64(len(r.tmp)) {
+		// Since the data is so small, a just reading from the buffered
+		// reader is better than flushing the buffer and seeking.
+		r.readFull(r.tmp[:n])
+	} else if n <= int64(r.b.Buffered()) {
+		// Even though the data is not small, it has already been read.
+		// Advance the buffer instead of seeking.
+		for n > int64(len(r.tmp)) {
+			r.readFull(r.tmp[:])
+			n -= int64(len(r.tmp))
+		}
+		r.readFull(r.tmp[:n])
+	} else {
+		// Seek, giving up buffered data.
+		_, err := r.f.Seek(r.offset+n, io.SeekStart)
+		if err != nil {
+			r.error(err)
+		}
+		r.offset += n
+		r.b.Reset(r.f)
+	}
+}
+
+// Parse parses an object file or archive from r,
+// assuming that its import path is pkgpath.
+func Parse(r io.ReadSeeker, pkgpath string) (*Package, error) {
+	if pkgpath == "" {
+		pkgpath = `""`
+	}
+	p := new(Package)
+	p.ImportPath = pkgpath
+
+	var rd objReader
+	rd.init(r, p)
+	err := rd.readFull(rd.tmp[:8])
+	if err != nil {
+		if err == io.EOF {
+			err = io.ErrUnexpectedEOF
+		}
+		return nil, err
+	}
+
+	switch {
+	default:
+		return nil, errNotObject
+
+	case bytes.Equal(rd.tmp[:8], archiveHeader):
+		if err := rd.parseArchive(); err != nil {
+			return nil, err
+		}
+	case bytes.Equal(rd.tmp[:8], goobjHeader):
+		if err := rd.parseObject(goobjHeader); err != nil {
+			return nil, err
+		}
+	}
+
+	return p, nil
+}
+
+// trimSpace removes trailing spaces from b and returns the corresponding string.
+// This effectively parses the form used in archive headers.
+func trimSpace(b []byte) string {
+	return string(bytes.TrimRight(b, " "))
+}
+
+// parseArchive parses a Unix archive of Go object files.
+// TODO(rsc): Need to skip non-Go object files.
+// TODO(rsc): Maybe record table of contents in r.p so that
+// linker can avoid having code to parse archives too.
+func (r *objReader) parseArchive() error {
+	for r.offset < r.limit {
+		if err := r.readFull(r.tmp[:60]); err != nil {
+			return err
+		}
+		data := r.tmp[:60]
+
+		// Each file is preceded by this text header (slice indices in first column):
+		//	 0:16	name
+		//	16:28 date
+		//	28:34 uid
+		//	34:40 gid
+		//	40:48 mode
+		//	48:58 size
+		//	58:60 magic - `\n
+		// We only care about name, size, and magic.
+		// The fields are space-padded on the right.
+		// The size is in decimal.
+		// The file data - size bytes - follows the header.
+		// Headers are 2-byte aligned, so if size is odd, an extra padding
+		// byte sits between the file data and the next header.
+		// The file data that follows is padded to an even number of bytes:
+		// if size is odd, an extra padding byte is inserted betw the next header.
+		if len(data) < 60 {
+			return errTruncatedArchive
+		}
+		if !bytes.Equal(data[58:60], archiveMagic) {
+			return errCorruptArchive
+		}
+		name := trimSpace(data[0:16])
+		size, err := strconv.ParseInt(trimSpace(data[48:58]), 10, 64)
+		if err != nil {
+			return errCorruptArchive
+		}
+		data = data[60:]
+		fsize := size + size&1
+		if fsize < 0 || fsize < size {
+			return errCorruptArchive
+		}
+		switch name {
+		case "__.PKGDEF":
+			r.skip(size)
+		default:
+			oldLimit := r.limit
+			r.limit = r.offset + size
+			if err := r.parseObject(nil); err != nil {
+				return fmt.Errorf("parsing archive member %q: %v", name, err)
+			}
+			r.skip(r.limit - r.offset)
+			r.limit = oldLimit
+		}
+		if size&1 != 0 {
+			r.skip(1)
+		}
+	}
+	return nil
+}
+
+// parseObject parses a single Go object file.
+// The prefix is the bytes already read from the file,
+// typically in order to detect that this is an object file.
+// The object file consists of a textual header ending in "\n!\n"
+// and then the part we want to parse begins.
+// The format of that part is defined in a comment at the top
+// of src/liblink/objfile.c.
+func (r *objReader) parseObject(prefix []byte) error {
+	r.p.MaxVersion++
+	h := make([]byte, 0, 256)
+	h = append(h, prefix...)
+	var c1, c2, c3 byte
+	for {
+		c1, c2, c3 = c2, c3, r.readByte()
+		h = append(h, c3)
+		// The new export format can contain 0 bytes.
+		// Don't consider them errors, only look for r.err != nil.
+		if r.err != nil {
+			return errCorruptObject
+		}
+		if c1 == '\n' && c2 == '!' && c3 == '\n' {
+			break
+		}
+	}
+
+	hs := strings.Fields(string(h))
+	if len(hs) >= 4 {
+		r.p.Arch = hs[3]
+	}
+	// TODO: extract OS + build ID if/when we need it
+
+	r.readFull(r.tmp[:8])
+	if !bytes.Equal(r.tmp[:8], []byte("\x00\x00go17ld")) {
+		return r.error(errCorruptObject)
+	}
+
+	b := r.readByte()
+	if b != 1 {
+		return r.error(errCorruptObject)
+	}
+
+	// Direct package dependencies.
+	for {
+		s := r.readString()
+		if s == "" {
+			break
+		}
+		r.p.Imports = append(r.p.Imports, s)
+	}
+
+	r.p.SymRefs = []SymID{{"", 0}}
+	for {
+		if b := r.readByte(); b != 0xfe {
+			if b != 0xff {
+				return r.error(errCorruptObject)
+			}
+			break
+		}
+
+		r.readRef()
+	}
+
+	dataLength := r.readInt()
+	r.readInt() // n relocations - ignore
+	r.readInt() // n pcdata - ignore
+	r.readInt() // n autom - ignore
+	r.readInt() // n funcdata - ignore
+	r.readInt() // n files - ignore
+
+	r.dataOffset = r.offset
+	r.skip(int64(dataLength))
+
+	// Symbols.
+	for {
+		if b := r.readByte(); b != 0xfe {
+			if b != 0xff {
+				return r.error(errCorruptObject)
+			}
+			break
+		}
+
+		typ := r.readInt()
+		s := &Sym{SymID: r.readSymID()}
+		r.p.Syms = append(r.p.Syms, s)
+		s.Kind = SymKind(typ)
+		flags := r.readInt()
+		s.DupOK = flags&1 != 0
+		s.Size = r.readInt()
+		s.Type = r.readSymID()
+		s.Data = r.readData()
+		s.Reloc = make([]Reloc, r.readInt())
+		for i := range s.Reloc {
+			rel := &s.Reloc[i]
+			rel.Offset = r.readInt()
+			rel.Size = r.readInt()
+			rel.Type = obj.RelocType(r.readInt())
+			rel.Add = r.readInt()
+			rel.Sym = r.readSymID()
+		}
+
+		if s.Kind == STEXT {
+			f := new(Func)
+			s.Func = f
+			f.Args = r.readInt()
+			f.Frame = r.readInt()
+			flags := r.readInt()
+			f.Leaf = flags&1 != 0
+			f.NoSplit = r.readInt() != 0
+			f.Var = make([]Var, r.readInt())
+			for i := range f.Var {
+				v := &f.Var[i]
+				v.Name = r.readSymID().Name
+				v.Offset = r.readInt()
+				v.Kind = r.readInt()
+				v.Type = r.readSymID()
+			}
+
+			f.PCSP = r.readData()
+			f.PCFile = r.readData()
+			f.PCLine = r.readData()
+			f.PCData = make([]Data, r.readInt())
+			for i := range f.PCData {
+				f.PCData[i] = r.readData()
+			}
+			f.FuncData = make([]FuncData, r.readInt())
+			for i := range f.FuncData {
+				f.FuncData[i].Sym = r.readSymID()
+			}
+			for i := range f.FuncData {
+				f.FuncData[i].Offset = int64(r.readInt()) // TODO
+			}
+			f.File = make([]string, r.readInt())
+			for i := range f.File {
+				f.File[i] = r.readSymID().Name
+			}
+		}
+	}
+
+	r.readFull(r.tmp[:7])
+	if !bytes.Equal(r.tmp[:7], []byte("\xffgo17ld")) {
+		return r.error(errCorruptObject)
+	}
+
+	return nil
+}
+
+func (r *Reloc) String(insnOffset uint64) string {
+	delta := r.Offset - int(insnOffset)
+	s := fmt.Sprintf("[%d:%d]%s", delta, delta+r.Size, r.Type)
+	if r.Sym.Name != "" {
+		if r.Add != 0 {
+			return fmt.Sprintf("%s:%s+%d", s, r.Sym.Name, r.Add)
+		}
+		return fmt.Sprintf("%s:%s", s, r.Sym.Name)
+	}
+	if r.Add != 0 {
+		return fmt.Sprintf("%s:%d", s, r.Add)
+	}
+	return s
+}

vendor/github.com/google/gops/internal/internal.go

@@ -0,0 +1,52 @@
+package internal
+
+import (
+	"errors"
+	"fmt"
+	"io/ioutil"
+	"os"
+	"os/user"
+	"path/filepath"
+	"runtime"
+	"strings"
+)
+
+func ConfigDir() (string, error) {
+	if runtime.GOOS == "windows" {
+		return filepath.Join(os.Getenv("APPDATA"), "gops"), nil
+	}
+	homeDir := guessUnixHomeDir()
+	if homeDir == "" {
+		return "", errors.New("unable to get current user home directory: os/user lookup failed; $HOME is empty")
+	}
+	return filepath.Join(homeDir, ".config", "gops"), nil
+}
+
+func guessUnixHomeDir() string {
+	usr, err := user.Current()
+	if err == nil {
+		return usr.HomeDir
+	}
+	return os.Getenv("HOME")
+}
+
+func PIDFile(pid int) (string, error) {
+	gopsdir, err := ConfigDir()
+	if err != nil {
+		return "", err
+	}
+	return fmt.Sprintf("%s/%d", gopsdir, pid), nil
+}
+
+func GetPort(pid int) (string, error) {
+	portfile, err := PIDFile(pid)
+	if err != nil {
+		return "", err
+	}
+	b, err := ioutil.ReadFile(portfile)
+	if err != nil {
+		return "", err
+	}
+	port := strings.TrimSpace(string(b))
+	return port, nil
+}

vendor/github.com/google/gops/internal/obj/addrtype_string.go

@@ -0,0 +1,27 @@
+// Code generated by "stringer -type AddrType cmd/internal/obj"; DO NOT EDIT
+
+package obj
+
+import "fmt"
+
+const (
+	_AddrType_name_0 = "TYPE_NONE"
+	_AddrType_name_1 = "TYPE_BRANCHTYPE_TEXTSIZETYPE_MEMTYPE_CONSTTYPE_FCONSTTYPE_SCONSTTYPE_REGTYPE_ADDRTYPE_SHIFTTYPE_REGREGTYPE_REGREG2TYPE_INDIRTYPE_REGLIST"
+)
+
+var (
+	_AddrType_index_0 = [...]uint8{0, 9}
+	_AddrType_index_1 = [...]uint8{0, 11, 24, 32, 42, 53, 64, 72, 81, 91, 102, 114, 124, 136}
+)
+
+func (i AddrType) String() string {
+	switch {
+	case i == 0:
+		return _AddrType_name_0
+	case 6 <= i && i <= 18:
+		i -= 6
+		return _AddrType_name_1[_AddrType_index_1[i]:_AddrType_index_1[i+1]]
+	default:
+		return fmt.Sprintf("AddrType(%d)", i)
+	}
+}

vendor/github.com/google/gops/internal/obj/arm/a.out.go

@@ -0,0 +1,338 @@
+// Inferno utils/5c/5.out.h
+// https://bitbucket.org/inferno-os/inferno-os/src/default/utils/5c/5.out.h
+//
+//	Copyright © 1994-1999 Lucent Technologies Inc.  All rights reserved.
+//	Portions Copyright © 1995-1997 C H Forsyth (forsyth@terzarima.net)
+//	Portions Copyright © 1997-1999 Vita Nuova Limited
+//	Portions Copyright © 2000-2007 Vita Nuova Holdings Limited (www.vitanuova.com)
+//	Portions Copyright © 2004,2006 Bruce Ellis
+//	Portions Copyright © 2005-2007 C H Forsyth (forsyth@terzarima.net)
+//	Revisions Copyright © 2000-2007 Lucent Technologies Inc. and others
+//	Portions Copyright © 2009 The Go Authors. All rights reserved.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+package arm
+
+import "github.com/google/gops/internal/obj"
+
+//go:generate go run ../stringer.go -i $GOFILE -o anames.go -p arm
+
+const (
+	NSNAME = 8
+	NSYM   = 50
+	NREG   = 16
+)
+
+/* -1 disables use of REGARG */
+const (
+	REGARG = -1
+)
+
+const (
+	REG_R0 = obj.RBaseARM + iota // must be 16-aligned
+	REG_R1
+	REG_R2
+	REG_R3
+	REG_R4
+	REG_R5
+	REG_R6
+	REG_R7
+	REG_R8
+	REG_R9
+	REG_R10
+	REG_R11
+	REG_R12
+	REG_R13
+	REG_R14
+	REG_R15
+
+	REG_F0 // must be 16-aligned
+	REG_F1
+	REG_F2
+	REG_F3
+	REG_F4
+	REG_F5
+	REG_F6
+	REG_F7
+	REG_F8
+	REG_F9
+	REG_F10
+	REG_F11
+	REG_F12
+	REG_F13
+	REG_F14
+	REG_F15
+
+	REG_FPSR // must be 2-aligned
+	REG_FPCR
+
+	REG_CPSR // must be 2-aligned
+	REG_SPSR
+
+	MAXREG
+	REGRET = REG_R0
+	/* compiler allocates R1 up as temps */
+	/* compiler allocates register variables R3 up */
+	/* compiler allocates external registers R10 down */
+	REGEXT = REG_R10
+	/* these two registers are declared in runtime.h */
+	REGG = REGEXT - 0
+	REGM = REGEXT - 1
+
+	REGCTXT = REG_R7
+	REGTMP  = REG_R11
+	REGSP   = REG_R13
+	REGLINK = REG_R14
+	REGPC   = REG_R15
+
+	NFREG = 16
+	/* compiler allocates register variables F0 up */
+	/* compiler allocates external registers F7 down */
+	FREGRET = REG_F0
+	FREGEXT = REG_F7
+	FREGTMP = REG_F15
+)
+
+const (
+	C_NONE = iota
+	C_REG
+	C_REGREG
+	C_REGREG2
+	C_REGLIST
+	C_SHIFT
+	C_FREG
+	C_PSR
+	C_FCR
+
+	C_RCON /* 0xff rotated */
+	C_NCON /* ~RCON */
+	C_SCON /* 0xffff */
+	C_LCON
+	C_LCONADDR
+	C_ZFCON
+	C_SFCON
+	C_LFCON
+
+	C_RACON
+	C_LACON
+
+	C_SBRA
+	C_LBRA
+
+	C_HAUTO  /* halfword insn offset (-0xff to 0xff) */
+	C_FAUTO  /* float insn offset (0 to 0x3fc, word aligned) */
+	C_HFAUTO /* both H and F */
+	C_SAUTO  /* -0xfff to 0xfff */
+	C_LAUTO
+
+	C_HOREG
+	C_FOREG
+	C_HFOREG
+	C_SOREG
+	C_ROREG
+	C_SROREG /* both nil and R */
+	C_LOREG
+
+	C_PC
+	C_SP
+	C_HREG
+
+	C_ADDR /* reference to relocatable address */
+
+	// TLS "var" in local exec mode: will become a constant offset from
+	// thread local base that is ultimately chosen by the program linker.
+	C_TLS_LE
+
+	// TLS "var" in initial exec mode: will become a memory address (chosen
+	// by the program linker) that the dynamic linker will fill with the
+	// offset from the thread local base.
+	C_TLS_IE
+
+	C_TEXTSIZE
+
+	C_GOK
+
+	C_NCLASS /* must be the last */
+)
+
+const (
+	AAND = obj.ABaseARM + obj.A_ARCHSPECIFIC + iota
+	AEOR
+	ASUB
+	ARSB
+	AADD
+	AADC
+	ASBC
+	ARSC
+	ATST
+	ATEQ
+	ACMP
+	ACMN
+	AORR
+	ABIC
+
+	AMVN
+
+	/*
+	 * Do not reorder or fragment the conditional branch
+	 * opcodes, or the predication code will break
+	 */
+	ABEQ
+	ABNE
+	ABCS
+	ABHS
+	ABCC
+	ABLO
+	ABMI
+	ABPL
+	ABVS
+	ABVC
+	ABHI
+	ABLS
+	ABGE
+	ABLT
+	ABGT
+	ABLE
+
+	AMOVWD
+	AMOVWF
+	AMOVDW
+	AMOVFW
+	AMOVFD
+	AMOVDF
+	AMOVF
+	AMOVD
+
+	ACMPF
+	ACMPD
+	AADDF
+	AADDD
+	ASUBF
+	ASUBD
+	AMULF
+	AMULD
+	ADIVF
+	ADIVD
+	ASQRTF
+	ASQRTD
+	AABSF
+	AABSD
+	ANEGF
+	ANEGD
+
+	ASRL
+	ASRA
+	ASLL
+	AMULU
+	ADIVU
+	AMUL
+	ADIV
+	AMOD
+	AMODU
+
+	AMOVB
+	AMOVBS
+	AMOVBU
+	AMOVH
+	AMOVHS
+	AMOVHU
+	AMOVW
+	AMOVM
+	ASWPBU
+	ASWPW
+
+	ARFE
+	ASWI
+	AMULA
+
+	AWORD
+
+	AMULL
+	AMULAL
+	AMULLU
+	AMULALU
+
+	ABX
+	ABXRET
+	ADWORD
+
+	ALDREX
+	ASTREX
+	ALDREXD
+	ASTREXD
+
+	APLD
+
+	ACLZ
+
+	AMULWT
+	AMULWB
+	AMULAWT
+	AMULAWB
+
+	ADATABUNDLE
+	ADATABUNDLEEND
+
+	AMRC // MRC/MCR
+
+	ALAST
+
+	// aliases
+	AB  = obj.AJMP
+	ABL = obj.ACALL
+)
+
+/* scond byte */
+const (
+	C_SCOND = (1 << 4) - 1
+	C_SBIT  = 1 << 4
+	C_PBIT  = 1 << 5
+	C_WBIT  = 1 << 6
+	C_FBIT  = 1 << 7 /* psr flags-only */
+	C_UBIT  = 1 << 7 /* up bit, unsigned bit */
+
+	// These constants are the ARM condition codes encodings,
+	// XORed with 14 so that C_SCOND_NONE has value 0,
+	// so that a zeroed Prog.scond means "always execute".
+	C_SCOND_XOR = 14
+
+	C_SCOND_EQ   = 0 ^ C_SCOND_XOR
+	C_SCOND_NE   = 1 ^ C_SCOND_XOR
+	C_SCOND_HS   = 2 ^ C_SCOND_XOR
+	C_SCOND_LO   = 3 ^ C_SCOND_XOR
+	C_SCOND_MI   = 4 ^ C_SCOND_XOR
+	C_SCOND_PL   = 5 ^ C_SCOND_XOR
+	C_SCOND_VS   = 6 ^ C_SCOND_XOR
+	C_SCOND_VC   = 7 ^ C_SCOND_XOR
+	C_SCOND_HI   = 8 ^ C_SCOND_XOR
+	C_SCOND_LS   = 9 ^ C_SCOND_XOR
+	C_SCOND_GE   = 10 ^ C_SCOND_XOR
+	C_SCOND_LT   = 11 ^ C_SCOND_XOR
+	C_SCOND_GT   = 12 ^ C_SCOND_XOR
+	C_SCOND_LE   = 13 ^ C_SCOND_XOR
+	C_SCOND_NONE = 14 ^ C_SCOND_XOR
+	C_SCOND_NV   = 15 ^ C_SCOND_XOR
+
+	/* D_SHIFT type */
+	SHIFT_LL = 0 << 5
+	SHIFT_LR = 1 << 5
+	SHIFT_AR = 2 << 5
+	SHIFT_RR = 3 << 5
+)

vendor/github.com/google/gops/internal/obj/arm/anames.go

@@ -0,0 +1,108 @@
+// Generated by stringer -i a.out.go -o anames.go -p arm
+// Do not edit.
+
+package arm
+
+import "github.com/google/gops/internal/obj"
+
+var Anames = []string{
+	obj.A_ARCHSPECIFIC: "AND",
+	"EOR",
+	"SUB",
+	"RSB",
+	"ADD",
+	"ADC",
+	"SBC",
+	"RSC",
+	"TST",
+	"TEQ",
+	"CMP",
+	"CMN",
+	"ORR",
+	"BIC",
+	"MVN",
+	"BEQ",
+	"BNE",
+	"BCS",
+	"BHS",
+	"BCC",
+	"BLO",
+	"BMI",
+	"BPL",
+	"BVS",
+	"BVC",
+	"BHI",
+	"BLS",
+	"BGE",
+	"BLT",
+	"BGT",
+	"BLE",
+	"MOVWD",
+	"MOVWF",
+	"MOVDW",
+	"MOVFW",
+	"MOVFD",
+	"MOVDF",
+	"MOVF",
+	"MOVD",
+	"CMPF",
+	"CMPD",
+	"ADDF",
+	"ADDD",
+	"SUBF",
+	"SUBD",
+	"MULF",
+	"MULD",
+	"DIVF",
+	"DIVD",
+	"SQRTF",
+	"SQRTD",
+	"ABSF",
+	"ABSD",
+	"NEGF",
+	"NEGD",
+	"SRL",
+	"SRA",
+	"SLL",
+	"MULU",
+	"DIVU",
+	"MUL",
+	"DIV",
+	"MOD",
+	"MODU",
+	"MOVB",
+	"MOVBS",
+	"MOVBU",
+	"MOVH",
+	"MOVHS",
+	"MOVHU",
+	"MOVW",
+	"MOVM",
+	"SWPBU",
+	"SWPW",
+	"RFE",
+	"SWI",
+	"MULA",
+	"WORD",
+	"MULL",
+	"MULAL",
+	"MULLU",
+	"MULALU",
+	"BX",
+	"BXRET",
+	"DWORD",
+	"LDREX",
+	"STREX",
+	"LDREXD",
+	"STREXD",
+	"PLD",
+	"CLZ",
+	"MULWT",
+	"MULWB",
+	"MULAWT",
+	"MULAWB",
+	"DATABUNDLE",
+	"DATABUNDLEEND",
+	"MRC",
+	"LAST",
+}

vendor/github.com/google/gops/internal/obj/arm/anames5.go

@@ -0,0 +1,73 @@
+// Copyright 2015 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package arm
+
+var cnames5 = []string{
+	"NONE",
+	"REG",
+	"REGREG",
+	"REGREG2",
+	"REGLIST",
+	"SHIFT",
+	"FREG",
+	"PSR",
+	"FCR",
+	"RCON",
+	"NCON",
+	"SCON",
+	"LCON",
+	"LCONADDR",
+	"ZFCON",
+	"SFCON",
+	"LFCON",
+	"RACON",
+	"LACON",
+	"SBRA",
+	"LBRA",
+	"HAUTO",
+	"FAUTO",
+	"HFAUTO",
+	"SAUTO",
+	"LAUTO",
+	"HOREG",
+	"FOREG",
+	"HFOREG",
+	"SOREG",
+	"ROREG",
+	"SROREG",
+	"LOREG",
+	"PC",
+	"SP",
+	"HREG",
+	"ADDR",
+	"C_TLS_LE",
+	"C_TLS_IE",
+	"TEXTSIZE",
+	"GOK",
+	"NCLASS",
+	"SCOND = (1<<4)-1",
+	"SBIT = 1<<4",
+	"PBIT = 1<<5",
+	"WBIT = 1<<6",
+	"FBIT = 1<<7",
+	"UBIT = 1<<7",
+	"SCOND_XOR = 14",
+	"SCOND_EQ = 0 ^ C_SCOND_XOR",
+	"SCOND_NE = 1 ^ C_SCOND_XOR",
+	"SCOND_HS = 2 ^ C_SCOND_XOR",
+	"SCOND_LO = 3 ^ C_SCOND_XOR",
+	"SCOND_MI = 4 ^ C_SCOND_XOR",
+	"SCOND_PL = 5 ^ C_SCOND_XOR",
+	"SCOND_VS = 6 ^ C_SCOND_XOR",
+	"SCOND_VC = 7 ^ C_SCOND_XOR",
+	"SCOND_HI = 8 ^ C_SCOND_XOR",
+	"SCOND_LS = 9 ^ C_SCOND_XOR",
+	"SCOND_GE = 10 ^ C_SCOND_XOR",
+	"SCOND_LT = 11 ^ C_SCOND_XOR",
+	"SCOND_GT = 12 ^ C_SCOND_XOR",
+	"SCOND_LE = 13 ^ C_SCOND_XOR",
+	"SCOND_NONE = 14 ^ C_SCOND_XOR",
+	"SCOND_NV = 15 ^ C_SCOND_XOR",
+}

vendor/github.com/google/gops/internal/obj/arm/list5.go

@@ -0,0 +1,84 @@
+// Inferno utils/5c/list.c
+// https://bitbucket.org/inferno-os/inferno-os/src/default/utils/5c/list.c
+//
+//	Copyright © 1994-1999 Lucent Technologies Inc.  All rights reserved.
+//	Portions Copyright © 1995-1997 C H Forsyth (forsyth@terzarima.net)
+//	Portions Copyright © 1997-1999 Vita Nuova Limited
+//	Portions Copyright © 2000-2007 Vita Nuova Holdings Limited (www.vitanuova.com)
+//	Portions Copyright © 2004,2006 Bruce Ellis
+//	Portions Copyright © 2005-2007 C H Forsyth (forsyth@terzarima.net)
+//	Revisions Copyright © 2000-2007 Lucent Technologies Inc. and others
+//	Portions Copyright © 2009 The Go Authors. All rights reserved.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+package arm
+
+import (
+	"fmt"
+
+	"github.com/google/gops/internal/obj"
+)
+
+func init() {
+	obj.RegisterRegister(obj.RBaseARM, MAXREG, Rconv)
+	obj.RegisterOpcode(obj.ABaseARM, Anames)
+}
+
+func Rconv(r int) string {
+	if r == 0 {
+		return "NONE"
+	}
+	if r == REGG {
+		// Special case.
+		return "g"
+	}
+	if REG_R0 <= r && r <= REG_R15 {
+		return fmt.Sprintf("R%d", r-REG_R0)
+	}
+	if REG_F0 <= r && r <= REG_F15 {
+		return fmt.Sprintf("F%d", r-REG_F0)
+	}
+
+	switch r {
+	case REG_FPSR:
+		return "FPSR"
+
+	case REG_FPCR:
+		return "FPCR"
+
+	case REG_CPSR:
+		return "CPSR"
+
+	case REG_SPSR:
+		return "SPSR"
+	}
+
+	return fmt.Sprintf("Rgok(%d)", r-obj.RBaseARM)
+}
+
+func DRconv(a int) string {
+	s := "C_??"
+	if a >= C_NONE && a <= C_NCLASS {
+		s = cnames5[a]
+	}
+	var fp string
+	fp += s
+	return fp
+}

vendor/github.com/google/gops/internal/obj/arm64/a.out.go

@@ -0,0 +1,719 @@
+// cmd/7c/7.out.h  from Vita Nuova.
+// https://code.google.com/p/ken-cc/source/browse/src/cmd/7c/7.out.h
+//
+// 	Copyright © 1994-1999 Lucent Technologies Inc. All rights reserved.
+// 	Portions Copyright © 1995-1997 C H Forsyth (forsyth@terzarima.net)
+// 	Portions Copyright © 1997-1999 Vita Nuova Limited
+// 	Portions Copyright © 2000-2007 Vita Nuova Holdings Limited (www.vitanuova.com)
+// 	Portions Copyright © 2004,2006 Bruce Ellis
+// 	Portions Copyright © 2005-2007 C H Forsyth (forsyth@terzarima.net)
+// 	Revisions Copyright © 2000-2007 Lucent Technologies Inc. and others
+// 	Portions Copyright © 2009 The Go Authors. All rights reserved.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+package arm64
+
+import "github.com/google/gops/internal/obj"
+
+const (
+	NSNAME = 8
+	NSYM   = 50
+	NREG   = 32 /* number of general registers */
+	NFREG  = 32 /* number of floating point registers */
+)
+
+// General purpose registers, kept in the low bits of Prog.Reg.
+const (
+	// integer
+	REG_R0 = obj.RBaseARM64 + iota
+	REG_R1
+	REG_R2
+	REG_R3
+	REG_R4
+	REG_R5
+	REG_R6
+	REG_R7
+	REG_R8
+	REG_R9
+	REG_R10
+	REG_R11
+	REG_R12
+	REG_R13
+	REG_R14
+	REG_R15
+	REG_R16
+	REG_R17
+	REG_R18
+	REG_R19
+	REG_R20
+	REG_R21
+	REG_R22
+	REG_R23
+	REG_R24
+	REG_R25
+	REG_R26
+	REG_R27
+	REG_R28
+	REG_R29
+	REG_R30
+	REG_R31
+
+	// scalar floating point
+	REG_F0
+	REG_F1
+	REG_F2
+	REG_F3
+	REG_F4
+	REG_F5
+	REG_F6
+	REG_F7
+	REG_F8
+	REG_F9
+	REG_F10
+	REG_F11
+	REG_F12
+	REG_F13
+	REG_F14
+	REG_F15
+	REG_F16
+	REG_F17
+	REG_F18
+	REG_F19
+	REG_F20
+	REG_F21
+	REG_F22
+	REG_F23
+	REG_F24
+	REG_F25
+	REG_F26
+	REG_F27
+	REG_F28
+	REG_F29
+	REG_F30
+	REG_F31
+
+	// SIMD
+	REG_V0
+	REG_V1
+	REG_V2
+	REG_V3
+	REG_V4
+	REG_V5
+	REG_V6
+	REG_V7
+	REG_V8
+	REG_V9
+	REG_V10
+	REG_V11
+	REG_V12
+	REG_V13
+	REG_V14
+	REG_V15
+	REG_V16
+	REG_V17
+	REG_V18
+	REG_V19
+	REG_V20
+	REG_V21
+	REG_V22
+	REG_V23
+	REG_V24
+	REG_V25
+	REG_V26
+	REG_V27
+	REG_V28
+	REG_V29
+	REG_V30
+	REG_V31
+
+	// The EQ in
+	// 	CSET	EQ, R0
+	// is encoded as TYPE_REG, even though it's not really a register.
+	COND_EQ
+	COND_NE
+	COND_HS
+	COND_LO
+	COND_MI
+	COND_PL
+	COND_VS
+	COND_VC
+	COND_HI
+	COND_LS
+	COND_GE
+	COND_LT
+	COND_GT
+	COND_LE
+	COND_AL
+	COND_NV
+
+	REG_RSP = REG_V31 + 32 // to differentiate ZR/SP, REG_RSP&0x1f = 31
+)
+
+// Not registers, but flags that can be combined with regular register
+// constants to indicate extended register conversion. When checking,
+// you should subtract obj.RBaseARM64 first. From this difference, bit 11
+// indicates extended register, bits 8-10 select the conversion mode.
+const REG_EXT = obj.RBaseARM64 + 1<<11
+
+const (
+	REG_UXTB = REG_EXT + iota<<8
+	REG_UXTH
+	REG_UXTW
+	REG_UXTX
+	REG_SXTB
+	REG_SXTH
+	REG_SXTW
+	REG_SXTX
+)
+
+// Special registers, after subtracting obj.RBaseARM64, bit 12 indicates
+// a special register and the low bits select the register.
+const (
+	REG_SPECIAL = obj.RBaseARM64 + 1<<12 + iota
+	REG_DAIF
+	REG_NZCV
+	REG_FPSR
+	REG_FPCR
+	REG_SPSR_EL1
+	REG_ELR_EL1
+	REG_SPSR_EL2
+	REG_ELR_EL2
+	REG_CurrentEL
+	REG_SP_EL0
+	REG_SPSel
+	REG_DAIFSet
+	REG_DAIFClr
+)
+
+// Register assignments:
+//
+// compiler allocates R0 up as temps
+// compiler allocates register variables R7-R25
+// compiler allocates external registers R26 down
+//
+// compiler allocates register variables F7-F26
+// compiler allocates external registers F26 down
+const (
+	REGMIN = REG_R7  // register variables allocated from here to REGMAX
+	REGRT1 = REG_R16 // ARM64 IP0, for external linker, runtime, duffzero and duffcopy
+	REGRT2 = REG_R17 // ARM64 IP1, for external linker, runtime, duffcopy
+	REGPR  = REG_R18 // ARM64 platform register, unused in the Go toolchain
+	REGMAX = REG_R25
+
+	REGCTXT = REG_R26 // environment for closures
+	REGTMP  = REG_R27 // reserved for liblink
+	REGG    = REG_R28 // G
+	REGFP   = REG_R29 // frame pointer, unused in the Go toolchain
+	REGLINK = REG_R30
+
+	// ARM64 uses R31 as both stack pointer and zero register,
+	// depending on the instruction. To differentiate RSP from ZR,
+	// we use a different numeric value for REGZERO and REGSP.
+	REGZERO = REG_R31
+	REGSP   = REG_RSP
+
+	FREGRET = REG_F0
+	FREGMIN = REG_F7  // first register variable
+	FREGMAX = REG_F26 // last register variable for 7g only
+	FREGEXT = REG_F26 // first external register
+)
+
+const (
+	BIG = 2048 - 8
+)
+
+const (
+	/* mark flags */
+	LABEL = 1 << iota
+	LEAF
+	FLOAT
+	BRANCH
+	LOAD
+	FCMP
+	SYNC
+	LIST
+	FOLL
+	NOSCHED
+)
+
+const (
+	C_NONE   = iota
+	C_REG    // R0..R30
+	C_RSP    // R0..R30, RSP
+	C_FREG   // F0..F31
+	C_VREG   // V0..V31
+	C_PAIR   // (Rn, Rm)
+	C_SHIFT  // Rn<<2
+	C_EXTREG // Rn.UXTB<<3
+	C_SPR    // REG_NZCV
+	C_COND   // EQ, NE, etc
+
+	C_ZCON     // $0 or ZR
+	C_ADDCON0  // 12-bit unsigned, unshifted
+	C_ADDCON   // 12-bit unsigned, shifted left by 0 or 12
+	C_MOVCON   // generated by a 16-bit constant, optionally inverted and/or shifted by multiple of 16
+	C_BITCON   // bitfield and logical immediate masks
+	C_ABCON0   // could be C_ADDCON0 or C_BITCON
+	C_ABCON    // could be C_ADDCON or C_BITCON
+	C_MBCON    // could be C_MOVCON or C_BITCON
+	C_LCON     // 32-bit constant
+	C_VCON     // 64-bit constant
+	C_FCON     // floating-point constant
+	C_VCONADDR // 64-bit memory address
+
+	C_AACON // ADDCON offset in auto constant $a(FP)
+	C_LACON // 32-bit offset in auto constant $a(FP)
+	C_AECON // ADDCON offset in extern constant $e(SB)
+
+	// TODO(aram): only one branch class should be enough
+	C_SBRA // for TYPE_BRANCH
+	C_LBRA
+
+	C_NPAUTO   // -512 <= x < 0, 0 mod 8
+	C_NSAUTO   // -256 <= x < 0
+	C_PSAUTO   // 0 to 255
+	C_PPAUTO   // 0 to 504, 0 mod 8
+	C_UAUTO4K  // 0 to 4095
+	C_UAUTO8K  // 0 to 8190, 0 mod 2
+	C_UAUTO16K // 0 to 16380, 0 mod 4
+	C_UAUTO32K // 0 to 32760, 0 mod 8
+	C_UAUTO64K // 0 to 65520, 0 mod 16
+	C_LAUTO    // any other 32-bit constant
+
+	C_SEXT1  // 0 to 4095, direct
+	C_SEXT2  // 0 to 8190
+	C_SEXT4  // 0 to 16380
+	C_SEXT8  // 0 to 32760
+	C_SEXT16 // 0 to 65520
+	C_LEXT
+
+	// TODO(aram): s/AUTO/INDIR/
+	C_ZOREG  // 0(R)
+	C_NPOREG // mirror NPAUTO, etc
+	C_NSOREG
+	C_PSOREG
+	C_PPOREG
+	C_UOREG4K
+	C_UOREG8K
+	C_UOREG16K
+	C_UOREG32K
+	C_UOREG64K
+	C_LOREG
+
+	C_ADDR // TODO(aram): explain difference from C_VCONADDR
+
+	// The GOT slot for a symbol in -dynlink mode.
+	C_GOTADDR
+
+	// TLS "var" in local exec mode: will become a constant offset from
+	// thread local base that is ultimately chosen by the program linker.
+	C_TLS_LE
+
+	// TLS "var" in initial exec mode: will become a memory address (chosen
+	// by the program linker) that the dynamic linker will fill with the
+	// offset from the thread local base.
+	C_TLS_IE
+
+	C_ROFF // register offset (including register extended)
+
+	C_GOK
+	C_TEXTSIZE
+	C_NCLASS // must be last
+)
+
+const (
+	C_XPRE  = 1 << 6 // match arm.C_WBIT, so Prog.String know how to print it
+	C_XPOST = 1 << 5 // match arm.C_PBIT, so Prog.String know how to print it
+)
+
+//go:generate go run ../stringer.go -i $GOFILE -o anames.go -p arm64
+
+const (
+	AADC = obj.ABaseARM64 + obj.A_ARCHSPECIFIC + iota
+	AADCS
+	AADCSW
+	AADCW
+	AADD
+	AADDS
+	AADDSW
+	AADDW
+	AADR
+	AADRP
+	AAND
+	AANDS
+	AANDSW
+	AANDW
+	AASR
+	AASRW
+	AAT
+	ABFI
+	ABFIW
+	ABFM
+	ABFMW
+	ABFXIL
+	ABFXILW
+	ABIC
+	ABICS
+	ABICSW
+	ABICW
+	ABRK
+	ACBNZ
+	ACBNZW
+	ACBZ
+	ACBZW
+	ACCMN
+	ACCMNW
+	ACCMP
+	ACCMPW
+	ACINC
+	ACINCW
+	ACINV
+	ACINVW
+	ACLREX
+	ACLS
+	ACLSW
+	ACLZ
+	ACLZW
+	ACMN
+	ACMNW
+	ACMP
+	ACMPW
+	ACNEG
+	ACNEGW
+	ACRC32B
+	ACRC32CB
+	ACRC32CH
+	ACRC32CW
+	ACRC32CX
+	ACRC32H
+	ACRC32W
+	ACRC32X
+	ACSEL
+	ACSELW
+	ACSET
+	ACSETM
+	ACSETMW
+	ACSETW
+	ACSINC
+	ACSINCW
+	ACSINV
+	ACSINVW
+	ACSNEG
+	ACSNEGW
+	ADC
+	ADCPS1
+	ADCPS2
+	ADCPS3
+	ADMB
+	ADRPS
+	ADSB
+	AEON
+	AEONW
+	AEOR
+	AEORW
+	AERET
+	AEXTR
+	AEXTRW
+	AHINT
+	AHLT
+	AHVC
+	AIC
+	AISB
+	ALDAR
+	ALDARB
+	ALDARH
+	ALDARW
+	ALDAXP
+	ALDAXPW
+	ALDAXR
+	ALDAXRB
+	ALDAXRH
+	ALDAXRW
+	ALDP
+	ALDXR
+	ALDXRB
+	ALDXRH
+	ALDXRW
+	ALDXP
+	ALDXPW
+	ALSL
+	ALSLW
+	ALSR
+	ALSRW
+	AMADD
+	AMADDW
+	AMNEG
+	AMNEGW
+	AMOVK
+	AMOVKW
+	AMOVN
+	AMOVNW
+	AMOVZ
+	AMOVZW
+	AMRS
+	AMSR
+	AMSUB
+	AMSUBW
+	AMUL
+	AMULW
+	AMVN
+	AMVNW
+	ANEG
+	ANEGS
+	ANEGSW
+	ANEGW
+	ANGC
+	ANGCS
+	ANGCSW
+	ANGCW
+	AORN
+	AORNW
+	AORR
+	AORRW
+	APRFM
+	APRFUM
+	ARBIT
+	ARBITW
+	AREM
+	AREMW
+	AREV
+	AREV16
+	AREV16W
+	AREV32
+	AREVW
+	AROR
+	ARORW
+	ASBC
+	ASBCS
+	ASBCSW
+	ASBCW
+	ASBFIZ
+	ASBFIZW
+	ASBFM
+	ASBFMW
+	ASBFX
+	ASBFXW
+	ASDIV
+	ASDIVW
+	ASEV
+	ASEVL
+	ASMADDL
+	ASMC
+	ASMNEGL
+	ASMSUBL
+	ASMULH
+	ASMULL
+	ASTXR
+	ASTXRB
+	ASTXRH
+	ASTXP
+	ASTXPW
+	ASTXRW
+	ASTLP
+	ASTLPW
+	ASTLR
+	ASTLRB
+	ASTLRH
+	ASTLRW
+	ASTLXP
+	ASTLXPW
+	ASTLXR
+	ASTLXRB
+	ASTLXRH
+	ASTLXRW
+	ASTP
+	ASUB
+	ASUBS
+	ASUBSW
+	ASUBW
+	ASVC
+	ASXTB
+	ASXTBW
+	ASXTH
+	ASXTHW
+	ASXTW
+	ASYS
+	ASYSL
+	ATBNZ
+	ATBZ
+	ATLBI
+	ATST
+	ATSTW
+	AUBFIZ
+	AUBFIZW
+	AUBFM
+	AUBFMW
+	AUBFX
+	AUBFXW
+	AUDIV
+	AUDIVW
+	AUMADDL
+	AUMNEGL
+	AUMSUBL
+	AUMULH
+	AUMULL
+	AUREM
+	AUREMW
+	AUXTB
+	AUXTH
+	AUXTW
+	AUXTBW
+	AUXTHW
+	AWFE
+	AWFI
+	AYIELD
+	AMOVB
+	AMOVBU
+	AMOVH
+	AMOVHU
+	AMOVW
+	AMOVWU
+	AMOVD
+	AMOVNP
+	AMOVNPW
+	AMOVP
+	AMOVPD
+	AMOVPQ
+	AMOVPS
+	AMOVPSW
+	AMOVPW
+	ABEQ
+	ABNE
+	ABCS
+	ABHS
+	ABCC
+	ABLO
+	ABMI
+	ABPL
+	ABVS
+	ABVC
+	ABHI
+	ABLS
+	ABGE
+	ABLT
+	ABGT
+	ABLE
+	AFABSD
+	AFABSS
+	AFADDD
+	AFADDS
+	AFCCMPD
+	AFCCMPED
+	AFCCMPS
+	AFCCMPES
+	AFCMPD
+	AFCMPED
+	AFCMPES
+	AFCMPS
+	AFCVTSD
+	AFCVTDS
+	AFCVTZSD
+	AFCVTZSDW
+	AFCVTZSS
+	AFCVTZSSW
+	AFCVTZUD
+	AFCVTZUDW
+	AFCVTZUS
+	AFCVTZUSW
+	AFDIVD
+	AFDIVS
+	AFMOVD
+	AFMOVS
+	AFMULD
+	AFMULS
+	AFNEGD
+	AFNEGS
+	AFSQRTD
+	AFSQRTS
+	AFSUBD
+	AFSUBS
+	ASCVTFD
+	ASCVTFS
+	ASCVTFWD
+	ASCVTFWS
+	AUCVTFD
+	AUCVTFS
+	AUCVTFWD
+	AUCVTFWS
+	AWORD
+	ADWORD
+	AFCSELS
+	AFCSELD
+	AFMAXS
+	AFMINS
+	AFMAXD
+	AFMIND
+	AFMAXNMS
+	AFMAXNMD
+	AFNMULS
+	AFNMULD
+	AFRINTNS
+	AFRINTND
+	AFRINTPS
+	AFRINTPD
+	AFRINTMS
+	AFRINTMD
+	AFRINTZS
+	AFRINTZD
+	AFRINTAS
+	AFRINTAD
+	AFRINTXS
+	AFRINTXD
+	AFRINTIS
+	AFRINTID
+	AFMADDS
+	AFMADDD
+	AFMSUBS
+	AFMSUBD
+	AFNMADDS
+	AFNMADDD
+	AFNMSUBS
+	AFNMSUBD
+	AFMINNMS
+	AFMINNMD
+	AFCVTDH
+	AFCVTHS
+	AFCVTHD
+	AFCVTSH
+	AAESD
+	AAESE
+	AAESIMC
+	AAESMC
+	ASHA1C
+	ASHA1H
+	ASHA1M
+	ASHA1P
+	ASHA1SU0
+	ASHA1SU1
+	ASHA256H
+	ASHA256H2
+	ASHA256SU0
+	ASHA256SU1
+	ALAST
+	AB  = obj.AJMP
+	ABL = obj.ACALL
+)
+
+const (
+	// shift types
+	SHIFT_LL = 0 << 22
+	SHIFT_LR = 1 << 22
+	SHIFT_AR = 2 << 22
+)

vendor/github.com/google/gops/internal/obj/arm64/anames.go

@@ -0,0 +1,370 @@
+// Generated by stringer -i a.out.go -o anames.go -p arm64
+// Do not edit.
+
+package arm64
+
+import "github.com/google/gops/internal/obj"
+
+var Anames = []string{
+	obj.A_ARCHSPECIFIC: "ADC",
+	"ADCS",
+	"ADCSW",
+	"ADCW",
+	"ADD",
+	"ADDS",
+	"ADDSW",
+	"ADDW",
+	"ADR",
+	"ADRP",
+	"AND",
+	"ANDS",
+	"ANDSW",
+	"ANDW",
+	"ASR",
+	"ASRW",
+	"AT",
+	"BFI",
+	"BFIW",
+	"BFM",
+	"BFMW",
+	"BFXIL",
+	"BFXILW",
+	"BIC",
+	"BICS",
+	"BICSW",
+	"BICW",
+	"BRK",
+	"CBNZ",
+	"CBNZW",
+	"CBZ",
+	"CBZW",
+	"CCMN",
+	"CCMNW",
+	"CCMP",
+	"CCMPW",
+	"CINC",
+	"CINCW",
+	"CINV",
+	"CINVW",
+	"CLREX",
+	"CLS",
+	"CLSW",
+	"CLZ",
+	"CLZW",
+	"CMN",
+	"CMNW",
+	"CMP",
+	"CMPW",
+	"CNEG",
+	"CNEGW",
+	"CRC32B",
+	"CRC32CB",
+	"CRC32CH",
+	"CRC32CW",
+	"CRC32CX",
+	"CRC32H",
+	"CRC32W",
+	"CRC32X",
+	"CSEL",
+	"CSELW",
+	"CSET",
+	"CSETM",
+	"CSETMW",
+	"CSETW",
+	"CSINC",
+	"CSINCW",
+	"CSINV",
+	"CSINVW",
+	"CSNEG",
+	"CSNEGW",
+	"DC",
+	"DCPS1",
+	"DCPS2",
+	"DCPS3",
+	"DMB",
+	"DRPS",
+	"DSB",
+	"EON",
+	"EONW",
+	"EOR",
+	"EORW",
+	"ERET",
+	"EXTR",
+	"EXTRW",
+	"HINT",
+	"HLT",
+	"HVC",
+	"IC",
+	"ISB",
+	"LDAR",
+	"LDARB",
+	"LDARH",
+	"LDARW",
+	"LDAXP",
+	"LDAXPW",
+	"LDAXR",
+	"LDAXRB",
+	"LDAXRH",
+	"LDAXRW",
+	"LDP",
+	"LDXR",
+	"LDXRB",
+	"LDXRH",
+	"LDXRW",
+	"LDXP",
+	"LDXPW",
+	"LSL",
+	"LSLW",
+	"LSR",
+	"LSRW",
+	"MADD",
+	"MADDW",
+	"MNEG",
+	"MNEGW",
+	"MOVK",
+	"MOVKW",
+	"MOVN",
+	"MOVNW",
+	"MOVZ",
+	"MOVZW",
+	"MRS",
+	"MSR",
+	"MSUB",
+	"MSUBW",
+	"MUL",
+	"MULW",
+	"MVN",
+	"MVNW",
+	"NEG",
+	"NEGS",
+	"NEGSW",
+	"NEGW",
+	"NGC",
+	"NGCS",
+	"NGCSW",
+	"NGCW",
+	"ORN",
+	"ORNW",
+	"ORR",
+	"ORRW",
+	"PRFM",
+	"PRFUM",
+	"RBIT",
+	"RBITW",
+	"REM",
+	"REMW",
+	"REV",
+	"REV16",
+	"REV16W",
+	"REV32",
+	"REVW",
+	"ROR",
+	"RORW",
+	"SBC",
+	"SBCS",
+	"SBCSW",
+	"SBCW",
+	"SBFIZ",
+	"SBFIZW",
+	"SBFM",
+	"SBFMW",
+	"SBFX",
+	"SBFXW",
+	"SDIV",
+	"SDIVW",
+	"SEV",
+	"SEVL",
+	"SMADDL",
+	"SMC",
+	"SMNEGL",
+	"SMSUBL",
+	"SMULH",
+	"SMULL",
+	"STXR",
+	"STXRB",
+	"STXRH",
+	"STXP",
+	"STXPW",
+	"STXRW",
+	"STLP",
+	"STLPW",
+	"STLR",
+	"STLRB",
+	"STLRH",
+	"STLRW",
+	"STLXP",
+	"STLXPW",
+	"STLXR",
+	"STLXRB",
+	"STLXRH",
+	"STLXRW",
+	"STP",
+	"SUB",
+	"SUBS",
+	"SUBSW",
+	"SUBW",
+	"SVC",
+	"SXTB",
+	"SXTBW",
+	"SXTH",
+	"SXTHW",
+	"SXTW",
+	"SYS",
+	"SYSL",
+	"TBNZ",
+	"TBZ",
+	"TLBI",
+	"TST",
+	"TSTW",
+	"UBFIZ",
+	"UBFIZW",
+	"UBFM",
+	"UBFMW",
+	"UBFX",
+	"UBFXW",
+	"UDIV",
+	"UDIVW",
+	"UMADDL",
+	"UMNEGL",
+	"UMSUBL",
+	"UMULH",
+	"UMULL",
+	"UREM",
+	"UREMW",
+	"UXTB",
+	"UXTH",
+	"UXTW",
+	"UXTBW",
+	"UXTHW",
+	"WFE",
+	"WFI",
+	"YIELD",
+	"MOVB",
+	"MOVBU",
+	"MOVH",
+	"MOVHU",
+	"MOVW",
+	"MOVWU",
+	"MOVD",
+	"MOVNP",
+	"MOVNPW",
+	"MOVP",
+	"MOVPD",
+	"MOVPQ",
+	"MOVPS",
+	"MOVPSW",
+	"MOVPW",
+	"BEQ",
+	"BNE",
+	"BCS",
+	"BHS",
+	"BCC",
+	"BLO",
+	"BMI",
+	"BPL",
+	"BVS",
+	"BVC",
+	"BHI",
+	"BLS",
+	"BGE",
+	"BLT",
+	"BGT",
+	"BLE",
+	"FABSD",
+	"FABSS",
+	"FADDD",
+	"FADDS",
+	"FCCMPD",
+	"FCCMPED",
+	"FCCMPS",
+	"FCCMPES",
+	"FCMPD",
+	"FCMPED",
+	"FCMPES",
+	"FCMPS",
+	"FCVTSD",
+	"FCVTDS",
+	"FCVTZSD",
+	"FCVTZSDW",
+	"FCVTZSS",
+	"FCVTZSSW",
+	"FCVTZUD",
+	"FCVTZUDW",
+	"FCVTZUS",
+	"FCVTZUSW",
+	"FDIVD",
+	"FDIVS",
+	"FMOVD",
+	"FMOVS",
+	"FMULD",
+	"FMULS",
+	"FNEGD",
+	"FNEGS",
+	"FSQRTD",
+	"FSQRTS",
+	"FSUBD",
+	"FSUBS",
+	"SCVTFD",
+	"SCVTFS",
+	"SCVTFWD",
+	"SCVTFWS",
+	"UCVTFD",
+	"UCVTFS",
+	"UCVTFWD",
+	"UCVTFWS",
+	"WORD",
+	"DWORD",
+	"FCSELS",
+	"FCSELD",
+	"FMAXS",
+	"FMINS",
+	"FMAXD",
+	"FMIND",
+	"FMAXNMS",
+	"FMAXNMD",
+	"FNMULS",
+	"FNMULD",
+	"FRINTNS",
+	"FRINTND",
+	"FRINTPS",
+	"FRINTPD",
+	"FRINTMS",
+	"FRINTMD",
+	"FRINTZS",
+	"FRINTZD",
+	"FRINTAS",
+	"FRINTAD",
+	"FRINTXS",
+	"FRINTXD",
+	"FRINTIS",
+	"FRINTID",
+	"FMADDS",
+	"FMADDD",
+	"FMSUBS",
+	"FMSUBD",
+	"FNMADDS",
+	"FNMADDD",
+	"FNMSUBS",
+	"FNMSUBD",
+	"FMINNMS",
+	"FMINNMD",
+	"FCVTDH",
+	"FCVTHS",
+	"FCVTHD",
+	"FCVTSH",
+	"AESD",
+	"AESE",
+	"AESIMC",
+	"AESMC",
+	"SHA1C",
+	"SHA1H",
+	"SHA1M",
+	"SHA1P",
+	"SHA1SU0",
+	"SHA1SU1",
+	"SHA256H",
+	"SHA256H2",
+	"SHA256SU0",
+	"SHA256SU1",
+	"LAST",
+}

vendor/github.com/google/gops/internal/obj/arm64/anames7.go

@@ -0,0 +1,70 @@
+// Copyright 2015 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package arm64
+
+var cnames7 = []string{
+	"NONE",
+	"REG",
+	"RSP",
+	"FREG",
+	"VREG",
+	"PAIR",
+	"SHIFT",
+	"EXTREG",
+	"SPR",
+	"COND",
+	"ZCON",
+	"ADDCON0",
+	"ADDCON",
+	"MOVCON",
+	"BITCON",
+	"ABCON0",
+	"ABCON",
+	"MBCON",
+	"LCON",
+	"VCON",
+	"FCON",
+	"VCONADDR",
+	"AACON",
+	"LACON",
+	"AECON",
+	"SBRA",
+	"LBRA",
+	"NPAUTO",
+	"NSAUTO",
+	"PSAUTO",
+	"PPAUTO",
+	"UAUTO4K",
+	"UAUTO8K",
+	"UAUTO16K",
+	"UAUTO32K",
+	"UAUTO64K",
+	"LAUTO",
+	"SEXT1",
+	"SEXT2",
+	"SEXT4",
+	"SEXT8",
+	"SEXT16",
+	"LEXT",
+	"ZOREG",
+	"NPOREG",
+	"NSOREG",
+	"PSOREG",
+	"PPOREG",
+	"UOREG4K",
+	"UOREG8K",
+	"UOREG16K",
+	"UOREG32K",
+	"UOREG64K",
+	"LOREG",
+	"ADDR",
+	"GOTADDR",
+	"TLS_LE",
+	"TLS_IE",
+	"ROFF",
+	"GOK",
+	"TEXTSIZE",
+	"NCLASS",
+}

vendor/github.com/google/gops/internal/obj/arm64/list7.go

@@ -0,0 +1,115 @@
+// cmd/7l/list.c and cmd/7l/sub.c from Vita Nuova.
+// https://code.google.com/p/ken-cc/source/browse/
+//
+// 	Copyright © 1994-1999 Lucent Technologies Inc. All rights reserved.
+// 	Portions Copyright © 1995-1997 C H Forsyth (forsyth@terzarima.net)
+// 	Portions Copyright © 1997-1999 Vita Nuova Limited
+// 	Portions Copyright © 2000-2007 Vita Nuova Holdings Limited (www.vitanuova.com)
+// 	Portions Copyright © 2004,2006 Bruce Ellis
+// 	Portions Copyright © 2005-2007 C H Forsyth (forsyth@terzarima.net)
+// 	Revisions Copyright © 2000-2007 Lucent Technologies Inc. and others
+// 	Portions Copyright © 2009 The Go Authors. All rights reserved.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+package arm64
+
+import (
+	"fmt"
+
+	"github.com/google/gops/internal/obj"
+)
+
+var strcond = [16]string{
+	"EQ",
+	"NE",
+	"HS",
+	"LO",
+	"MI",
+	"PL",
+	"VS",
+	"VC",
+	"HI",
+	"LS",
+	"GE",
+	"LT",
+	"GT",
+	"LE",
+	"AL",
+	"NV",
+}
+
+func init() {
+	obj.RegisterRegister(obj.RBaseARM64, REG_SPECIAL+1024, Rconv)
+	obj.RegisterOpcode(obj.ABaseARM64, Anames)
+}
+
+func Rconv(r int) string {
+	if r == REGG {
+		return "g"
+	}
+	switch {
+	case REG_R0 <= r && r <= REG_R30:
+		return fmt.Sprintf("R%d", r-REG_R0)
+	case r == REG_R31:
+		return "ZR"
+	case REG_F0 <= r && r <= REG_F31:
+		return fmt.Sprintf("F%d", r-REG_F0)
+	case REG_V0 <= r && r <= REG_V31:
+		return fmt.Sprintf("V%d", r-REG_V0)
+	case COND_EQ <= r && r <= COND_NV:
+		return strcond[r-COND_EQ]
+	case r == REGSP:
+		return "RSP"
+	case r == REG_DAIF:
+		return "DAIF"
+	case r == REG_NZCV:
+		return "NZCV"
+	case r == REG_FPSR:
+		return "FPSR"
+	case r == REG_FPCR:
+		return "FPCR"
+	case r == REG_SPSR_EL1:
+		return "SPSR_EL1"
+	case r == REG_ELR_EL1:
+		return "ELR_EL1"
+	case r == REG_SPSR_EL2:
+		return "SPSR_EL2"
+	case r == REG_ELR_EL2:
+		return "ELR_EL2"
+	case r == REG_CurrentEL:
+		return "CurrentEL"
+	case r == REG_SP_EL0:
+		return "SP_EL0"
+	case r == REG_SPSel:
+		return "SPSel"
+	case r == REG_DAIFSet:
+		return "DAIFSet"
+	case r == REG_DAIFClr:
+		return "DAIFClr"
+	}
+	return fmt.Sprintf("badreg(%d)", r)
+}
+
+func DRconv(a int) string {
+	if a >= C_NONE && a <= C_NCLASS {
+		return cnames7[a]
+	}
+	return "C_??"
+}

vendor/github.com/google/gops/internal/obj/data.go

@@ -0,0 +1,190 @@
+// Derived from Inferno utils/6l/obj.c and utils/6l/span.c
+// https://bitbucket.org/inferno-os/inferno-os/src/default/utils/6l/obj.c
+// https://bitbucket.org/inferno-os/inferno-os/src/default/utils/6l/span.c
+//
+//	Copyright © 1994-1999 Lucent Technologies Inc.  All rights reserved.
+//	Portions Copyright © 1995-1997 C H Forsyth (forsyth@terzarima.net)
+//	Portions Copyright © 1997-1999 Vita Nuova Limited
+//	Portions Copyright © 2000-2007 Vita Nuova Holdings Limited (www.vitanuova.com)
+//	Portions Copyright © 2004,2006 Bruce Ellis
+//	Portions Copyright © 2005-2007 C H Forsyth (forsyth@terzarima.net)
+//	Revisions Copyright © 2000-2007 Lucent Technologies Inc. and others
+//	Portions Copyright © 2009 The Go Authors. All rights reserved.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+package obj
+
+import (
+	"log"
+	"math"
+)
+
+// Grow increases the length of s.P to lsiz.
+func (s *LSym) Grow(lsiz int64) {
+	siz := int(lsiz)
+	if int64(siz) != lsiz {
+		log.Fatalf("LSym.Grow size %d too long", lsiz)
+	}
+	if len(s.P) >= siz {
+		return
+	}
+	// TODO(dfc) append cap-len at once, rather than
+	// one byte at a time.
+	for cap(s.P) < siz {
+		s.P = append(s.P[:cap(s.P)], 0)
+	}
+	s.P = s.P[:siz]
+}
+
+// GrowCap increases the capacity of s.P to c.
+func (s *LSym) GrowCap(c int64) {
+	if int64(cap(s.P)) >= c {
+		return
+	}
+	if s.P == nil {
+		s.P = make([]byte, 0, c)
+		return
+	}
+	b := make([]byte, len(s.P), c)
+	copy(b, s.P)
+	s.P = b
+}
+
+// prepwrite prepares to write data of size siz into s at offset off.
+func (s *LSym) prepwrite(ctxt *Link, off int64, siz int) {
+	if off < 0 || siz < 0 || off >= 1<<30 {
+		log.Fatalf("prepwrite: bad off=%d siz=%d", off, siz)
+	}
+	if s.Type == SBSS || s.Type == STLSBSS {
+		ctxt.Diag("cannot supply data for BSS var")
+	}
+	l := off + int64(siz)
+	s.Grow(l)
+	if l > s.Size {
+		s.Size = l
+	}
+}
+
+// WriteFloat32 writes f into s at offset off.
+func (s *LSym) WriteFloat32(ctxt *Link, off int64, f float32) {
+	s.prepwrite(ctxt, off, 4)
+	ctxt.Arch.ByteOrder.PutUint32(s.P[off:], math.Float32bits(f))
+}
+
+// WriteFloat64 writes f into s at offset off.
+func (s *LSym) WriteFloat64(ctxt *Link, off int64, f float64) {
+	s.prepwrite(ctxt, off, 8)
+	ctxt.Arch.ByteOrder.PutUint64(s.P[off:], math.Float64bits(f))
+}
+
+// WriteInt writes an integer i of size siz into s at offset off.
+func (s *LSym) WriteInt(ctxt *Link, off int64, siz int, i int64) {
+	s.prepwrite(ctxt, off, siz)
+	switch siz {
+	default:
+		ctxt.Diag("WriteInt: bad integer size: %d", siz)
+	case 1:
+		s.P[off] = byte(i)
+	case 2:
+		ctxt.Arch.ByteOrder.PutUint16(s.P[off:], uint16(i))
+	case 4:
+		ctxt.Arch.ByteOrder.PutUint32(s.P[off:], uint32(i))
+	case 8:
+		ctxt.Arch.ByteOrder.PutUint64(s.P[off:], uint64(i))
+	}
+}
+
+// WriteAddr writes an address of size siz into s at offset off.
+// rsym and roff specify the relocation for the address.
+func (s *LSym) WriteAddr(ctxt *Link, off int64, siz int, rsym *LSym, roff int64) {
+	if siz != ctxt.Arch.PtrSize {
+		ctxt.Diag("WriteAddr: bad address size %d in %s", siz, s.Name)
+	}
+	s.prepwrite(ctxt, off, siz)
+	r := Addrel(s)
+	r.Off = int32(off)
+	if int64(r.Off) != off {
+		ctxt.Diag("WriteAddr: off overflow %d in %s", off, s.Name)
+	}
+	r.Siz = uint8(siz)
+	r.Sym = rsym
+	r.Type = R_ADDR
+	r.Add = roff
+}
+
+// WriteOff writes a 4 byte offset to rsym+roff into s at offset off.
+// After linking the 4 bytes stored at s+off will be
+// rsym+roff-(start of section that s is in).
+func (s *LSym) WriteOff(ctxt *Link, off int64, rsym *LSym, roff int64) {
+	s.prepwrite(ctxt, off, 4)
+	r := Addrel(s)
+	r.Off = int32(off)
+	if int64(r.Off) != off {
+		ctxt.Diag("WriteOff: off overflow %d in %s", off, s.Name)
+	}
+	r.Siz = 4
+	r.Sym = rsym
+	r.Type = R_ADDROFF
+	r.Add = roff
+}
+
+// WriteString writes a string of size siz into s at offset off.
+func (s *LSym) WriteString(ctxt *Link, off int64, siz int, str string) {
+	if siz < len(str) {
+		ctxt.Diag("WriteString: bad string size: %d < %d", siz, len(str))
+	}
+	s.prepwrite(ctxt, off, siz)
+	copy(s.P[off:off+int64(siz)], str)
+}
+
+// WriteBytes writes a slice of bytes into s at offset off.
+func (s *LSym) WriteBytes(ctxt *Link, off int64, b []byte) int64 {
+	s.prepwrite(ctxt, off, len(b))
+	copy(s.P[off:], b)
+	return off + int64(len(b))
+}
+
+func Addrel(s *LSym) *Reloc {
+	s.R = append(s.R, Reloc{})
+	return &s.R[len(s.R)-1]
+}
+
+func Setuintxx(ctxt *Link, s *LSym, off int64, v uint64, wid int64) int64 {
+	if s.Type == 0 {
+		s.Type = SDATA
+	}
+	if s.Size < off+wid {
+		s.Size = off + wid
+		s.Grow(s.Size)
+	}
+
+	switch wid {
+	case 1:
+		s.P[off] = uint8(v)
+	case 2:
+		ctxt.Arch.ByteOrder.PutUint16(s.P[off:], uint16(v))
+	case 4:
+		ctxt.Arch.ByteOrder.PutUint32(s.P[off:], uint32(v))
+	case 8:
+		ctxt.Arch.ByteOrder.PutUint64(s.P[off:], v)
+	}
+
+	return off + wid
+}

vendor/github.com/google/gops/internal/obj/flag.go

@@ -0,0 +1,115 @@
+// Copyright 2015 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package obj
+
+import (
+	"flag"
+	"fmt"
+	"os"
+	"strconv"
+)
+
+func Flagfn2(string, string, func(string, string)) { panic("flag") }
+
+func Flagcount(name, usage string, val *int) {
+	flag.Var((*count)(val), name, usage)
+}
+
+func Flagint32(name, usage string, val *int32) {
+	flag.Var((*int32Value)(val), name, usage)
+}
+
+func Flagint64(name, usage string, val *int64) {
+	flag.Int64Var(val, name, *val, usage)
+}
+
+func Flagstr(name, usage string, val *string) {
+	flag.StringVar(val, name, *val, usage)
+}
+
+func Flagfn0(name, usage string, f func()) {
+	flag.Var(fn0(f), name, usage)
+}
+
+func Flagfn1(name, usage string, f func(string)) {
+	flag.Var(fn1(f), name, usage)
+}
+
+func Flagprint(fd int) {
+	if fd == 1 {
+		flag.CommandLine.SetOutput(os.Stdout)
+	}
+	flag.PrintDefaults()
+}
+
+func Flagparse(usage func()) {
+	flag.Usage = usage
+	flag.Parse()
+}
+
+// count is a flag.Value that is like a flag.Bool and a flag.Int.
+// If used as -name, it increments the count, but -name=x sets the count.
+// Used for verbose flag -v.
+type count int
+
+func (c *count) String() string {
+	return fmt.Sprint(int(*c))
+}
+
+func (c *count) Set(s string) error {
+	switch s {
+	case "true":
+		*c++
+	case "false":
+		*c = 0
+	default:
+		n, err := strconv.Atoi(s)
+		if err != nil {
+			return fmt.Errorf("invalid count %q", s)
+		}
+		*c = count(n)
+	}
+	return nil
+}
+
+func (c *count) IsBoolFlag() bool {
+	return true
+}
+
+type int32Value int32
+
+func (i *int32Value) Set(s string) error {
+	v, err := strconv.ParseInt(s, 0, 64)
+	*i = int32Value(v)
+	return err
+}
+
+func (i *int32Value) Get() interface{} { return int32(*i) }
+
+func (i *int32Value) String() string { return fmt.Sprint(*i) }
+
+type fn0 func()
+
+func (f fn0) Set(s string) error {
+	f()
+	return nil
+}
+
+func (f fn0) Get() interface{} { return nil }
+
+func (f fn0) String() string { return "" }
+
+func (f fn0) IsBoolFlag() bool {
+	return true
+}
+
+type fn1 func(string)
+
+func (f fn1) Set(s string) error {
+	f(s)
+	return nil
+}
+
+func (f fn1) String() string { return "" }

vendor/github.com/google/gops/internal/obj/funcdata.go

@@ -0,0 +1,48 @@
+// Copyright 2013 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package obj
+
+// This file defines the IDs for PCDATA and FUNCDATA instructions
+// in Go binaries. It is included by assembly sources, so it must
+// be written using #defines.
+//
+// The Go compiler also #includes this file, for now.
+//
+// symtab.go also contains a copy of these constants.
+
+// Pseudo-assembly statements.
+
+// GO_ARGS, GO_RESULTS_INITIALIZED, and NO_LOCAL_POINTERS are macros
+// that communicate to the runtime information about the location and liveness
+// of pointers in an assembly function's arguments, results, and stack frame.
+// This communication is only required in assembly functions that make calls
+// to other functions that might be preempted or grow the stack.
+// NOSPLIT functions that make no calls do not need to use these macros.
+
+// GO_ARGS indicates that the Go prototype for this assembly function
+// defines the pointer map for the function's arguments.
+// GO_ARGS should be the first instruction in a function that uses it.
+// It can be omitted if there are no arguments at all.
+// GO_ARGS is inserted implicitly by the linker for any function
+// that also has a Go prototype and therefore is usually not necessary
+// to write explicitly.
+
+// GO_RESULTS_INITIALIZED indicates that the assembly function
+// has initialized the stack space for its results and that those results
+// should be considered live for the remainder of the function.
+
+// NO_LOCAL_POINTERS indicates that the assembly function stores
+// no pointers to heap objects in its local stack variables.
+
+// ArgsSizeUnknown is set in Func.argsize to mark all functions
+// whose argument size is unknown (C vararg functions, and
+// assembly code without an explicit specification).
+// This value is generated by the compiler, assembler, or linker.
+const (
+	PCDATA_StackMapIndex       = 0
+	FUNCDATA_ArgsPointerMaps   = 0
+	FUNCDATA_LocalsPointerMaps = 1
+	ArgsSizeUnknown            = -0x80000000
+)

vendor/github.com/google/gops/internal/obj/go.go

@@ -0,0 +1,86 @@
+// Copyright 2009 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package obj
+
+import (
+	"fmt"
+	"os"
+	"strings"
+)
+
+// go-specific code shared across loaders (5l, 6l, 8l).
+
+var (
+	framepointer_enabled int
+	Fieldtrack_enabled   int
+)
+
+// Toolchain experiments.
+// These are controlled by the GOEXPERIMENT environment
+// variable recorded when the toolchain is built.
+// This list is also known to cmd/gc.
+var exper = []struct {
+	name string
+	val  *int
+}{
+	{"fieldtrack", &Fieldtrack_enabled},
+	{"framepointer", &framepointer_enabled},
+}
+
+func addexp(s string) {
+	// Could do general integer parsing here, but the runtime copy doesn't yet.
+	v := 1
+	name := s
+	if len(name) > 2 && name[:2] == "no" {
+		v = 0
+		name = name[2:]
+	}
+	for i := 0; i < len(exper); i++ {
+		if exper[i].name == name {
+			if exper[i].val != nil {
+				*exper[i].val = v
+			}
+			return
+		}
+	}
+
+	fmt.Printf("unknown experiment %s\n", s)
+	os.Exit(2)
+}
+
+func init() {
+	framepointer_enabled = 1 // default
+	for _, f := range strings.Split(goexperiment, ",") {
+		if f != "" {
+			addexp(f)
+		}
+	}
+}
+
+func Framepointer_enabled(goos, goarch string) bool {
+	return framepointer_enabled != 0 && goarch == "amd64" && goos != "nacl"
+}
+
+func Nopout(p *Prog) {
+	p.As = ANOP
+	p.Scond = 0
+	p.From = Addr{}
+	p.From3 = nil
+	p.Reg = 0
+	p.To = Addr{}
+}
+
+func Expstring() string {
+	buf := "X"
+	for i := range exper {
+		if *exper[i].val != 0 {
+			buf += "," + exper[i].name
+		}
+	}
+	if buf == "X" {
+		buf += ",none"
+	}
+	return "X:" + buf[2:]
+}

vendor/github.com/google/gops/internal/obj/ld.go

@@ -0,0 +1,92 @@
+// Derived from Inferno utils/6l/obj.c and utils/6l/span.c
+// https://bitbucket.org/inferno-os/inferno-os/src/default/utils/6l/obj.c
+// https://bitbucket.org/inferno-os/inferno-os/src/default/utils/6l/span.c
+//
+//	Copyright © 1994-1999 Lucent Technologies Inc.  All rights reserved.
+//	Portions Copyright © 1995-1997 C H Forsyth (forsyth@terzarima.net)
+//	Portions Copyright © 1997-1999 Vita Nuova Limited
+//	Portions Copyright © 2000-2007 Vita Nuova Holdings Limited (www.vitanuova.com)
+//	Portions Copyright © 2004,2006 Bruce Ellis
+//	Portions Copyright © 2005-2007 C H Forsyth (forsyth@terzarima.net)
+//	Revisions Copyright © 2000-2007 Lucent Technologies Inc. and others
+//	Portions Copyright © 2009 The Go Authors. All rights reserved.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+package obj
+
+/*
+ * add library to library list.
+ *	srcref: src file referring to package
+ *	objref: object file referring to package
+ *	file: object file, e.g., /home/rsc/go/pkg/container/vector.a
+ *	pkg: package import path, e.g. container/vector
+ */
+
+const (
+	LOG = 5
+)
+
+func mkfwd(sym *LSym) {
+	var dwn [LOG]int32
+	var cnt [LOG]int32
+	var lst [LOG]*Prog
+
+	for i := 0; i < LOG; i++ {
+		if i == 0 {
+			cnt[i] = 1
+		} else {
+			cnt[i] = LOG * cnt[i-1]
+		}
+		dwn[i] = 1
+		lst[i] = nil
+	}
+
+	i := 0
+	for p := sym.Text; p != nil && p.Link != nil; p = p.Link {
+		i--
+		if i < 0 {
+			i = LOG - 1
+		}
+		p.Forwd = nil
+		dwn[i]--
+		if dwn[i] <= 0 {
+			dwn[i] = cnt[i]
+			if lst[i] != nil {
+				lst[i].Forwd = p
+			}
+			lst[i] = p
+		}
+	}
+}
+
+func Copyp(ctxt *Link, q *Prog) *Prog {
+	p := ctxt.NewProg()
+	*p = *q
+	return p
+}
+
+func Appendp(ctxt *Link, q *Prog) *Prog {
+	p := ctxt.NewProg()
+	p.Link = q.Link
+	q.Link = p
+	p.Lineno = q.Lineno
+	p.Mode = q.Mode
+	return p
+}

vendor/github.com/google/gops/internal/obj/link.go

@@ -0,0 +1,974 @@
+// Derived from Inferno utils/6l/l.h and related files.
+// https://bitbucket.org/inferno-os/inferno-os/src/default/utils/6l/l.h
+//
+//	Copyright © 1994-1999 Lucent Technologies Inc.  All rights reserved.
+//	Portions Copyright © 1995-1997 C H Forsyth (forsyth@terzarima.net)
+//	Portions Copyright © 1997-1999 Vita Nuova Limited
+//	Portions Copyright © 2000-2007 Vita Nuova Holdings Limited (www.vitanuova.com)
+//	Portions Copyright © 2004,2006 Bruce Ellis
+//	Portions Copyright © 2005-2007 C H Forsyth (forsyth@terzarima.net)
+//	Revisions Copyright © 2000-2007 Lucent Technologies Inc. and others
+//	Portions Copyright © 2009 The Go Authors. All rights reserved.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+package obj
+
+import (
+	"bufio"
+	"fmt"
+
+	"github.com/google/gops/internal/sys"
+)
+
+// An Addr is an argument to an instruction.
+// The general forms and their encodings are:
+//
+//	sym±offset(symkind)(reg)(index*scale)
+//		Memory reference at address &sym(symkind) + offset + reg + index*scale.
+//		Any of sym(symkind), ±offset, (reg), (index*scale), and *scale can be omitted.
+//		If (reg) and *scale are both omitted, the resulting expression (index) is parsed as (reg).
+//		To force a parsing as index*scale, write (index*1).
+//		Encoding:
+//			type = TYPE_MEM
+//			name = symkind (NAME_AUTO, ...) or 0 (NAME_NONE)
+//			sym = sym
+//			offset = ±offset
+//			reg = reg (REG_*)
+//			index = index (REG_*)
+//			scale = scale (1, 2, 4, 8)
+//
+//	$<mem>
+//		Effective address of memory reference <mem>, defined above.
+//		Encoding: same as memory reference, but type = TYPE_ADDR.
+//
+//	$<±integer value>
+//		This is a special case of $<mem>, in which only ±offset is present.
+//		It has a separate type for easy recognition.
+//		Encoding:
+//			type = TYPE_CONST
+//			offset = ±integer value
+//
+//	*<mem>
+//		Indirect reference through memory reference <mem>, defined above.
+//		Only used on x86 for CALL/JMP *sym(SB), which calls/jumps to a function
+//		pointer stored in the data word sym(SB), not a function named sym(SB).
+//		Encoding: same as above, but type = TYPE_INDIR.
+//
+//	$*$<mem>
+//		No longer used.
+//		On machines with actual SB registers, $*$<mem> forced the
+//		instruction encoding to use a full 32-bit constant, never a
+//		reference relative to SB.
+//
+//	$<floating point literal>
+//		Floating point constant value.
+//		Encoding:
+//			type = TYPE_FCONST
+//			val = floating point value
+//
+//	$<string literal, up to 8 chars>
+//		String literal value (raw bytes used for DATA instruction).
+//		Encoding:
+//			type = TYPE_SCONST
+//			val = string
+//
+//	<register name>
+//		Any register: integer, floating point, control, segment, and so on.
+//		If looking for specific register kind, must check type and reg value range.
+//		Encoding:
+//			type = TYPE_REG
+//			reg = reg (REG_*)
+//
+//	x(PC)
+//		Encoding:
+//			type = TYPE_BRANCH
+//			val = Prog* reference OR ELSE offset = target pc (branch takes priority)
+//
+//	$±x-±y
+//		Final argument to TEXT, specifying local frame size x and argument size y.
+//		In this form, x and y are integer literals only, not arbitrary expressions.
+//		This avoids parsing ambiguities due to the use of - as a separator.
+//		The ± are optional.
+//		If the final argument to TEXT omits the -±y, the encoding should still
+//		use TYPE_TEXTSIZE (not TYPE_CONST), with u.argsize = ArgsSizeUnknown.
+//		Encoding:
+//			type = TYPE_TEXTSIZE
+//			offset = x
+//			val = int32(y)
+//
+//	reg<<shift, reg>>shift, reg->shift, reg@>shift
+//		Shifted register value, for ARM and ARM64.
+//		In this form, reg must be a register and shift can be a register or an integer constant.
+//		Encoding:
+//			type = TYPE_SHIFT
+//		On ARM:
+//			offset = (reg&15) | shifttype<<5 | count
+//			shifttype = 0, 1, 2, 3 for <<, >>, ->, @>
+//			count = (reg&15)<<8 | 1<<4 for a register shift count, (n&31)<<7 for an integer constant.
+//		On ARM64:
+//			offset = (reg&31)<<16 | shifttype<<22 | (count&63)<<10
+//			shifttype = 0, 1, 2 for <<, >>, ->
+//
+//	(reg, reg)
+//		A destination register pair. When used as the last argument of an instruction,
+//		this form makes clear that both registers are destinations.
+//		Encoding:
+//			type = TYPE_REGREG
+//			reg = first register
+//			offset = second register
+//
+//	[reg, reg, reg-reg]
+//		Register list for ARM.
+//		Encoding:
+//			type = TYPE_REGLIST
+//			offset = bit mask of registers in list; R0 is low bit.
+//
+//	reg, reg
+//		Register pair for ARM.
+//		TYPE_REGREG2
+//
+//	(reg+reg)
+//		Register pair for PPC64.
+//		Encoding:
+//			type = TYPE_MEM
+//			reg = first register
+//			index = second register
+//			scale = 1
+//
+type Addr struct {
+	Reg    int16
+	Index  int16
+	Scale  int16 // Sometimes holds a register.
+	Type   AddrType
+	Name   int8
+	Class  int8
+	Offset int64
+	Sym    *LSym
+
+	// argument value:
+	//	for TYPE_SCONST, a string
+	//	for TYPE_FCONST, a float64
+	//	for TYPE_BRANCH, a *Prog (optional)
+	//	for TYPE_TEXTSIZE, an int32 (optional)
+	Val interface{}
+
+	Node interface{} // for use by compiler
+}
+
+type AddrType uint8
+
+const (
+	NAME_NONE = 0 + iota
+	NAME_EXTERN
+	NAME_STATIC
+	NAME_AUTO
+	NAME_PARAM
+	// A reference to name@GOT(SB) is a reference to the entry in the global offset
+	// table for 'name'.
+	NAME_GOTREF
+)
+
+const (
+	TYPE_NONE AddrType = 0
+
+	TYPE_BRANCH AddrType = 5 + iota
+	TYPE_TEXTSIZE
+	TYPE_MEM
+	TYPE_CONST
+	TYPE_FCONST
+	TYPE_SCONST
+	TYPE_REG
+	TYPE_ADDR
+	TYPE_SHIFT
+	TYPE_REGREG
+	TYPE_REGREG2
+	TYPE_INDIR
+	TYPE_REGLIST
+)
+
+// Prog describes a single machine instruction.
+//
+// The general instruction form is:
+//
+//	As.Scond From, Reg, From3, To, RegTo2
+//
+// where As is an opcode and the others are arguments:
+// From, Reg, From3 are sources, and To, RegTo2 are destinations.
+// Usually, not all arguments are present.
+// For example, MOVL R1, R2 encodes using only As=MOVL, From=R1, To=R2.
+// The Scond field holds additional condition bits for systems (like arm)
+// that have generalized conditional execution.
+//
+// Jump instructions use the Pcond field to point to the target instruction,
+// which must be in the same linked list as the jump instruction.
+//
+// The Progs for a given function are arranged in a list linked through the Link field.
+//
+// Each Prog is charged to a specific source line in the debug information,
+// specified by Lineno, an index into the line history (see LineHist).
+// Every Prog has a Ctxt field that defines various context, including the current LineHist.
+// Progs should be allocated using ctxt.NewProg(), not new(Prog).
+//
+// The other fields not yet mentioned are for use by the back ends and should
+// be left zeroed by creators of Prog lists.
+type Prog struct {
+	Ctxt   *Link       // linker context
+	Link   *Prog       // next Prog in linked list
+	From   Addr        // first source operand
+	From3  *Addr       // third source operand (second is Reg below)
+	To     Addr        // destination operand (second is RegTo2 below)
+	Pcond  *Prog       // target of conditional jump
+	Opt    interface{} // available to optimization passes to hold per-Prog state
+	Forwd  *Prog       // for x86 back end
+	Rel    *Prog       // for x86, arm back ends
+	Pc     int64       // for back ends or assembler: virtual or actual program counter, depending on phase
+	Lineno int32       // line number of this instruction
+	Spadj  int32       // effect of instruction on stack pointer (increment or decrement amount)
+	As     As          // assembler opcode
+	Reg    int16       // 2nd source operand
+	RegTo2 int16       // 2nd destination operand
+	Mark   uint16      // bitmask of arch-specific items
+	Optab  uint16      // arch-specific opcode index
+	Scond  uint8       // condition bits for conditional instruction (e.g., on ARM)
+	Back   uint8       // for x86 back end: backwards branch state
+	Ft     uint8       // for x86 back end: type index of Prog.From
+	Tt     uint8       // for x86 back end: type index of Prog.To
+	Isize  uint8       // for x86 back end: size of the instruction in bytes
+	Mode   int8        // for x86 back end: 32- or 64-bit mode
+}
+
+// From3Type returns From3.Type, or TYPE_NONE when From3 is nil.
+func (p *Prog) From3Type() AddrType {
+	if p.From3 == nil {
+		return TYPE_NONE
+	}
+	return p.From3.Type
+}
+
+// From3Offset returns From3.Offset, or 0 when From3 is nil.
+func (p *Prog) From3Offset() int64 {
+	if p.From3 == nil {
+		return 0
+	}
+	return p.From3.Offset
+}
+
+// An As denotes an assembler opcode.
+// There are some portable opcodes, declared here in package obj,
+// that are common to all architectures.
+// However, the majority of opcodes are arch-specific
+// and are declared in their respective architecture's subpackage.
+type As int16
+
+// These are the portable opcodes.
+const (
+	AXXX As = iota
+	ACALL
+	ADUFFCOPY
+	ADUFFZERO
+	AEND
+	AFUNCDATA
+	AJMP
+	ANOP
+	APCDATA
+	ARET
+	ATEXT
+	ATYPE
+	AUNDEF
+	AUSEFIELD
+	AVARDEF
+	AVARKILL
+	AVARLIVE
+	A_ARCHSPECIFIC
+)
+
+// Each architecture is allotted a distinct subspace of opcode values
+// for declaring its arch-specific opcodes.
+// Within this subspace, the first arch-specific opcode should be
+// at offset A_ARCHSPECIFIC.
+//
+// Subspaces are aligned to a power of two so opcodes can be masked
+// with AMask and used as compact array indices.
+const (
+	ABase386 = (1 + iota) << 10
+	ABaseARM
+	ABaseAMD64
+	ABasePPC64
+	ABaseARM64
+	ABaseMIPS64
+	ABaseS390X
+
+	AllowedOpCodes = 1 << 10            // The number of opcodes available for any given architecture.
+	AMask          = AllowedOpCodes - 1 // AND with this to use the opcode as an array index.
+)
+
+// An LSym is the sort of symbol that is written to an object file.
+type LSym struct {
+	Name    string
+	Type    SymKind
+	Version int16
+	Attribute
+
+	RefIdx int // Index of this symbol in the symbol reference list.
+	Args   int32
+	Locals int32
+	Size   int64
+	Gotype *LSym
+	Autom  *Auto
+	Text   *Prog
+	Pcln   *Pcln
+	P      []byte
+	R      []Reloc
+}
+
+// Attribute is a set of symbol attributes.
+type Attribute int16
+
+const (
+	AttrDuplicateOK Attribute = 1 << iota
+	AttrCFunc
+	AttrNoSplit
+	AttrLeaf
+	AttrSeenGlobl
+	AttrOnList
+
+	// MakeTypelink means that the type should have an entry in the typelink table.
+	AttrMakeTypelink
+
+	// ReflectMethod means the function may call reflect.Type.Method or
+	// reflect.Type.MethodByName. Matching is imprecise (as reflect.Type
+	// can be used through a custom interface), so ReflectMethod may be
+	// set in some cases when the reflect package is not called.
+	//
+	// Used by the linker to determine what methods can be pruned.
+	AttrReflectMethod
+
+	// Local means make the symbol local even when compiling Go code to reference Go
+	// symbols in other shared libraries, as in this mode symbols are global by
+	// default. "local" here means in the sense of the dynamic linker, i.e. not
+	// visible outside of the module (shared library or executable) that contains its
+	// definition. (When not compiling to support Go shared libraries, all symbols are
+	// local in this sense unless there is a cgo_export_* directive).
+	AttrLocal
+)
+
+func (a Attribute) DuplicateOK() bool   { return a&AttrDuplicateOK != 0 }
+func (a Attribute) MakeTypelink() bool  { return a&AttrMakeTypelink != 0 }
+func (a Attribute) CFunc() bool         { return a&AttrCFunc != 0 }
+func (a Attribute) NoSplit() bool       { return a&AttrNoSplit != 0 }
+func (a Attribute) Leaf() bool          { return a&AttrLeaf != 0 }
+func (a Attribute) SeenGlobl() bool     { return a&AttrSeenGlobl != 0 }
+func (a Attribute) OnList() bool        { return a&AttrOnList != 0 }
+func (a Attribute) ReflectMethod() bool { return a&AttrReflectMethod != 0 }
+func (a Attribute) Local() bool         { return a&AttrLocal != 0 }
+
+func (a *Attribute) Set(flag Attribute, value bool) {
+	if value {
+		*a |= flag
+	} else {
+		*a &^= flag
+	}
+}
+
+// The compiler needs LSym to satisfy fmt.Stringer, because it stores
+// an LSym in ssa.ExternSymbol.
+func (s *LSym) String() string {
+	return s.Name
+}
+
+type Pcln struct {
+	Pcsp        Pcdata
+	Pcfile      Pcdata
+	Pcline      Pcdata
+	Pcdata      []Pcdata
+	Funcdata    []*LSym
+	Funcdataoff []int64
+	File        []*LSym
+	Lastfile    *LSym
+	Lastindex   int
+}
+
+// A SymKind describes the kind of memory represented by a symbol.
+type SymKind int16
+
+// Defined SymKind values.
+//
+// TODO(rsc): Give idiomatic Go names.
+// TODO(rsc): Reduce the number of symbol types in the object files.
+//go:generate stringer -type=SymKind
+const (
+	Sxxx SymKind = iota
+	STEXT
+	SELFRXSECT
+
+	// Read-only sections.
+	STYPE
+	SSTRING
+	SGOSTRING
+	SGOFUNC
+	SGCBITS
+	SRODATA
+	SFUNCTAB
+
+	SELFROSECT
+	SMACHOPLT
+
+	// Read-only sections with relocations.
+	//
+	// Types STYPE-SFUNCTAB above are written to the .rodata section by default.
+	// When linking a shared object, some conceptually "read only" types need to
+	// be written to by relocations and putting them in a section called
+	// ".rodata" interacts poorly with the system linkers. The GNU linkers
+	// support this situation by arranging for sections of the name
+	// ".data.rel.ro.XXX" to be mprotected read only by the dynamic linker after
+	// relocations have applied, so when the Go linker is creating a shared
+	// object it checks all objects of the above types and bumps any object that
+	// has a relocation to it to the corresponding type below, which are then
+	// written to sections with appropriate magic names.
+	STYPERELRO
+	SSTRINGRELRO
+	SGOSTRINGRELRO
+	SGOFUNCRELRO
+	SGCBITSRELRO
+	SRODATARELRO
+	SFUNCTABRELRO
+
+	// Part of .data.rel.ro if it exists, otherwise part of .rodata.
+	STYPELINK
+	SITABLINK
+	SSYMTAB
+	SPCLNTAB
+
+	// Writable sections.
+	SELFSECT
+	SMACHO
+	SMACHOGOT
+	SWINDOWS
+	SELFGOT
+	SNOPTRDATA
+	SINITARR
+	SDATA
+	SBSS
+	SNOPTRBSS
+	STLSBSS
+	SXREF
+	SMACHOSYMSTR
+	SMACHOSYMTAB
+	SMACHOINDIRECTPLT
+	SMACHOINDIRECTGOT
+	SFILE
+	SFILEPATH
+	SCONST
+	SDYNIMPORT
+	SHOSTOBJ
+	SDWARFSECT
+	SDWARFINFO
+	SSUB       = SymKind(1 << 8)
+	SMASK      = SymKind(SSUB - 1)
+	SHIDDEN    = SymKind(1 << 9)
+	SCONTAINER = SymKind(1 << 10) // has a sub-symbol
+)
+
+// ReadOnly are the symbol kinds that form read-only sections. In some
+// cases, if they will require relocations, they are transformed into
+// rel-ro sections using RelROMap.
+var ReadOnly = []SymKind{
+	STYPE,
+	SSTRING,
+	SGOSTRING,
+	SGOFUNC,
+	SGCBITS,
+	SRODATA,
+	SFUNCTAB,
+}
+
+// RelROMap describes the transformation of read-only symbols to rel-ro
+// symbols.
+var RelROMap = map[SymKind]SymKind{
+	STYPE:     STYPERELRO,
+	SSTRING:   SSTRINGRELRO,
+	SGOSTRING: SGOSTRINGRELRO,
+	SGOFUNC:   SGOFUNCRELRO,
+	SGCBITS:   SGCBITSRELRO,
+	SRODATA:   SRODATARELRO,
+	SFUNCTAB:  SFUNCTABRELRO,
+}
+
+type Reloc struct {
+	Off  int32
+	Siz  uint8
+	Type RelocType
+	Add  int64
+	Sym  *LSym
+}
+
+type RelocType int32
+
+//go:generate stringer -type=RelocType
+const (
+	R_ADDR RelocType = 1 + iota
+	// R_ADDRPOWER relocates a pair of "D-form" instructions (instructions with 16-bit
+	// immediates in the low half of the instruction word), usually addis followed by
+	// another add or a load, inserting the "high adjusted" 16 bits of the address of
+	// the referenced symbol into the immediate field of the first instruction and the
+	// low 16 bits into that of the second instruction.
+	R_ADDRPOWER
+	// R_ADDRARM64 relocates an adrp, add pair to compute the address of the
+	// referenced symbol.
+	R_ADDRARM64
+	// R_ADDRMIPS (only used on mips64) resolves to the low 16 bits of an external
+	// address, by encoding it into the instruction.
+	R_ADDRMIPS
+	// R_ADDROFF resolves to a 32-bit offset from the beginning of the section
+	// holding the data being relocated to the referenced symbol.
+	R_ADDROFF
+	R_SIZE
+	R_CALL
+	R_CALLARM
+	R_CALLARM64
+	R_CALLIND
+	R_CALLPOWER
+	// R_CALLMIPS (only used on mips64) resolves to non-PC-relative target address
+	// of a CALL (JAL) instruction, by encoding the address into the instruction.
+	R_CALLMIPS
+	R_CONST
+	R_PCREL
+	// R_TLS_LE, used on 386, amd64, and ARM, resolves to the offset of the
+	// thread-local symbol from the thread local base and is used to implement the
+	// "local exec" model for tls access (r.Sym is not set on intel platforms but is
+	// set to a TLS symbol -- runtime.tlsg -- in the linker when externally linking).
+	R_TLS_LE
+	// R_TLS_IE, used 386, amd64, and ARM resolves to the PC-relative offset to a GOT
+	// slot containing the offset from the thread-local symbol from the thread local
+	// base and is used to implemented the "initial exec" model for tls access (r.Sym
+	// is not set on intel platforms but is set to a TLS symbol -- runtime.tlsg -- in
+	// the linker when externally linking).
+	R_TLS_IE
+	R_GOTOFF
+	R_PLT0
+	R_PLT1
+	R_PLT2
+	R_USEFIELD
+	// R_USETYPE resolves to an *rtype, but no relocation is created. The
+	// linker uses this as a signal that the pointed-to type information
+	// should be linked into the final binary, even if there are no other
+	// direct references. (This is used for types reachable by reflection.)
+	R_USETYPE
+	// R_METHODOFF resolves to a 32-bit offset from the beginning of the section
+	// holding the data being relocated to the referenced symbol.
+	// It is a variant of R_ADDROFF used when linking from the uncommonType of a
+	// *rtype, and may be set to zero by the linker if it determines the method
+	// text is unreachable by the linked program.
+	R_METHODOFF
+	R_POWER_TOC
+	R_GOTPCREL
+	// R_JMPMIPS (only used on mips64) resolves to non-PC-relative target address
+	// of a JMP instruction, by encoding the address into the instruction.
+	// The stack nosplit check ignores this since it is not a function call.
+	R_JMPMIPS
+	// R_DWARFREF resolves to the offset of the symbol from its section.
+	R_DWARFREF
+
+	// Platform dependent relocations. Architectures with fixed width instructions
+	// have the inherent issue that a 32-bit (or 64-bit!) displacement cannot be
+	// stuffed into a 32-bit instruction, so an address needs to be spread across
+	// several instructions, and in turn this requires a sequence of relocations, each
+	// updating a part of an instruction. This leads to relocation codes that are
+	// inherently processor specific.
+
+	// Arm64.
+
+	// Set a MOV[NZ] immediate field to bits [15:0] of the offset from the thread
+	// local base to the thread local variable defined by the referenced (thread
+	// local) symbol. Error if the offset does not fit into 16 bits.
+	R_ARM64_TLS_LE
+
+	// Relocates an ADRP; LD64 instruction sequence to load the offset between
+	// the thread local base and the thread local variable defined by the
+	// referenced (thread local) symbol from the GOT.
+	R_ARM64_TLS_IE
+
+	// R_ARM64_GOTPCREL relocates an adrp, ld64 pair to compute the address of the GOT
+	// slot of the referenced symbol.
+	R_ARM64_GOTPCREL
+
+	// PPC64.
+
+	// R_POWER_TLS_LE is used to implement the "local exec" model for tls
+	// access. It resolves to the offset of the thread-local symbol from the
+	// thread pointer (R13) and inserts this value into the low 16 bits of an
+	// instruction word.
+	R_POWER_TLS_LE
+
+	// R_POWER_TLS_IE is used to implement the "initial exec" model for tls access. It
+	// relocates a D-form, DS-form instruction sequence like R_ADDRPOWER_DS. It
+	// inserts to the offset of GOT slot for the thread-local symbol from the TOC (the
+	// GOT slot is filled by the dynamic linker with the offset of the thread-local
+	// symbol from the thread pointer (R13)).
+	R_POWER_TLS_IE
+
+	// R_POWER_TLS marks an X-form instruction such as "MOVD 0(R13)(R31*1), g" as
+	// accessing a particular thread-local symbol. It does not affect code generation
+	// but is used by the system linker when relaxing "initial exec" model code to
+	// "local exec" model code.
+	R_POWER_TLS
+
+	// R_ADDRPOWER_DS is similar to R_ADDRPOWER above, but assumes the second
+	// instruction is a "DS-form" instruction, which has an immediate field occupying
+	// bits [15:2] of the instruction word. Bits [15:2] of the address of the
+	// relocated symbol are inserted into this field; it is an error if the last two
+	// bits of the address are not 0.
+	R_ADDRPOWER_DS
+
+	// R_ADDRPOWER_PCREL relocates a D-form, DS-form instruction sequence like
+	// R_ADDRPOWER_DS but inserts the offset of the GOT slot for the referenced symbol
+	// from the TOC rather than the symbol's address.
+	R_ADDRPOWER_GOT
+
+	// R_ADDRPOWER_PCREL relocates two D-form instructions like R_ADDRPOWER, but
+	// inserts the displacement from the place being relocated to the address of the
+	// the relocated symbol instead of just its address.
+	R_ADDRPOWER_PCREL
+
+	// R_ADDRPOWER_TOCREL relocates two D-form instructions like R_ADDRPOWER, but
+	// inserts the offset from the TOC to the address of the the relocated symbol
+	// rather than the symbol's address.
+	R_ADDRPOWER_TOCREL
+
+	// R_ADDRPOWER_TOCREL relocates a D-form, DS-form instruction sequence like
+	// R_ADDRPOWER_DS but inserts the offset from the TOC to the address of the the
+	// relocated symbol rather than the symbol's address.
+	R_ADDRPOWER_TOCREL_DS
+
+	// R_PCRELDBL relocates s390x 2-byte aligned PC-relative addresses.
+	// TODO(mundaym): remove once variants can be serialized - see issue 14218.
+	R_PCRELDBL
+
+	// R_ADDRMIPSU (only used on mips64) resolves to the sign-adjusted "upper" 16
+	// bits (bit 16-31) of an external address, by encoding it into the instruction.
+	R_ADDRMIPSU
+	// R_ADDRMIPSTLS (only used on mips64) resolves to the low 16 bits of a TLS
+	// address (offset from thread pointer), by encoding it into the instruction.
+	R_ADDRMIPSTLS
+)
+
+// IsDirectJump returns whether r is a relocation for a direct jump.
+// A direct jump is a CALL or JMP instruction that takes the target address
+// as immediate. The address is embedded into the instruction, possibly
+// with limited width.
+// An indirect jump is a CALL or JMP instruction that takes the target address
+// in register or memory.
+func (r RelocType) IsDirectJump() bool {
+	switch r {
+	case R_CALL, R_CALLARM, R_CALLARM64, R_CALLPOWER, R_CALLMIPS, R_JMPMIPS:
+		return true
+	}
+	return false
+}
+
+type Auto struct {
+	Asym    *LSym
+	Link    *Auto
+	Aoffset int32
+	Name    int16
+	Gotype  *LSym
+}
+
+// Auto.name
+const (
+	A_AUTO = 1 + iota
+	A_PARAM
+)
+
+type Pcdata struct {
+	P []byte
+}
+
+// symbol version, incremented each time a file is loaded.
+// version==1 is reserved for savehist.
+const (
+	HistVersion = 1
+)
+
+// Link holds the context for writing object code from a compiler
+// to be linker input or for reading that input into the linker.
+type Link struct {
+	Headtype      HeadType
+	Arch          *LinkArch
+	Debugasm      int32
+	Debugvlog     int32
+	Debugdivmod   int32
+	Debugpcln     int32
+	Flag_shared   bool
+	Flag_dynlink  bool
+	Flag_optimize bool
+	Bso           *bufio.Writer
+	Pathname      string
+	Hash          map[SymVer]*LSym
+	LineHist      LineHist
+	Imports       []string
+	Plists        []*Plist
+	Sym_div       *LSym
+	Sym_divu      *LSym
+	Sym_mod       *LSym
+	Sym_modu      *LSym
+	Plan9privates *LSym
+	Curp          *Prog
+	Printp        *Prog
+	Blitrl        *Prog
+	Elitrl        *Prog
+	Rexflag       int
+	Vexflag       int
+	Rep           int
+	Repn          int
+	Lock          int
+	Asmode        int
+	AsmBuf        AsmBuf // instruction buffer for x86
+	Instoffset    int64
+	Autosize      int32
+	Armsize       int32
+	Pc            int64
+	DiagFunc      func(string, ...interface{})
+	Mode          int
+	Cursym        *LSym
+	Version       int
+	Errors        int
+
+	Framepointer_enabled bool
+
+	// state for writing objects
+	Text []*LSym
+	Data []*LSym
+
+	// Cache of Progs
+	allocIdx int
+	progs    [10000]Prog
+}
+
+func (ctxt *Link) Diag(format string, args ...interface{}) {
+	ctxt.Errors++
+	ctxt.DiagFunc(format, args...)
+}
+
+func (ctxt *Link) Logf(format string, args ...interface{}) {
+	fmt.Fprintf(ctxt.Bso, format, args...)
+	ctxt.Bso.Flush()
+}
+
+// The smallest possible offset from the hardware stack pointer to a local
+// variable on the stack. Architectures that use a link register save its value
+// on the stack in the function prologue and so always have a pointer between
+// the hardware stack pointer and the local variable area.
+func (ctxt *Link) FixedFrameSize() int64 {
+	switch ctxt.Arch.Family {
+	case sys.AMD64, sys.I386:
+		return 0
+	case sys.PPC64:
+		// PIC code on ppc64le requires 32 bytes of stack, and it's easier to
+		// just use that much stack always on ppc64x.
+		return int64(4 * ctxt.Arch.PtrSize)
+	default:
+		return int64(ctxt.Arch.PtrSize)
+	}
+}
+
+type SymVer struct {
+	Name    string
+	Version int // TODO: make int16 to match LSym.Version?
+}
+
+// LinkArch is the definition of a single architecture.
+type LinkArch struct {
+	*sys.Arch
+	Preprocess func(*Link, *LSym)
+	Assemble   func(*Link, *LSym)
+	Follow     func(*Link, *LSym)
+	Progedit   func(*Link, *Prog)
+	UnaryDst   map[As]bool // Instruction takes one operand, a destination.
+}
+
+// HeadType is the executable header type.
+type HeadType uint8
+
+const (
+	Hunknown HeadType = iota
+	Hdarwin
+	Hdragonfly
+	Hfreebsd
+	Hlinux
+	Hnacl
+	Hnetbsd
+	Hopenbsd
+	Hplan9
+	Hsolaris
+	Hwindows
+	Hwindowsgui
+)
+
+func (h *HeadType) Set(s string) error {
+	switch s {
+	case "darwin":
+		*h = Hdarwin
+	case "dragonfly":
+		*h = Hdragonfly
+	case "freebsd":
+		*h = Hfreebsd
+	case "linux", "android":
+		*h = Hlinux
+	case "nacl":
+		*h = Hnacl
+	case "netbsd":
+		*h = Hnetbsd
+	case "openbsd":
+		*h = Hopenbsd
+	case "plan9":
+		*h = Hplan9
+	case "solaris":
+		*h = Hsolaris
+	case "windows":
+		*h = Hwindows
+	case "windowsgui":
+		*h = Hwindowsgui
+	default:
+		return fmt.Errorf("invalid headtype: %q", s)
+	}
+	return nil
+}
+
+func (h *HeadType) String() string {
+	switch *h {
+	case Hdarwin:
+		return "darwin"
+	case Hdragonfly:
+		return "dragonfly"
+	case Hfreebsd:
+		return "freebsd"
+	case Hlinux:
+		return "linux"
+	case Hnacl:
+		return "nacl"
+	case Hnetbsd:
+		return "netbsd"
+	case Hopenbsd:
+		return "openbsd"
+	case Hplan9:
+		return "plan9"
+	case Hsolaris:
+		return "solaris"
+	case Hwindows:
+		return "windows"
+	case Hwindowsgui:
+		return "windowsgui"
+	}
+	return fmt.Sprintf("HeadType(%d)", *h)
+}
+
+// AsmBuf is a simple buffer to assemble variable-length x86 instructions into.
+type AsmBuf struct {
+	buf [100]byte
+	off int
+}
+
+// Put1 appends one byte to the end of the buffer.
+func (a *AsmBuf) Put1(x byte) {
+	a.buf[a.off] = x
+	a.off++
+}
+
+// Put2 appends two bytes to the end of the buffer.
+func (a *AsmBuf) Put2(x, y byte) {
+	a.buf[a.off+0] = x
+	a.buf[a.off+1] = y
+	a.off += 2
+}
+
+// Put3 appends three bytes to the end of the buffer.
+func (a *AsmBuf) Put3(x, y, z byte) {
+	a.buf[a.off+0] = x
+	a.buf[a.off+1] = y
+	a.buf[a.off+2] = z
+	a.off += 3
+}
+
+// Put4 appends four bytes to the end of the buffer.
+func (a *AsmBuf) Put4(x, y, z, w byte) {
+	a.buf[a.off+0] = x
+	a.buf[a.off+1] = y
+	a.buf[a.off+2] = z
+	a.buf[a.off+3] = w
+	a.off += 4
+}
+
+// PutInt16 writes v into the buffer using little-endian encoding.
+func (a *AsmBuf) PutInt16(v int16) {
+	a.buf[a.off+0] = byte(v)
+	a.buf[a.off+1] = byte(v >> 8)
+	a.off += 2
+}
+
+// PutInt32 writes v into the buffer using little-endian encoding.
+func (a *AsmBuf) PutInt32(v int32) {
+	a.buf[a.off+0] = byte(v)
+	a.buf[a.off+1] = byte(v >> 8)
+	a.buf[a.off+2] = byte(v >> 16)
+	a.buf[a.off+3] = byte(v >> 24)
+	a.off += 4
+}
+
+// PutInt64 writes v into the buffer using little-endian encoding.
+func (a *AsmBuf) PutInt64(v int64) {
+	a.buf[a.off+0] = byte(v)
+	a.buf[a.off+1] = byte(v >> 8)
+	a.buf[a.off+2] = byte(v >> 16)
+	a.buf[a.off+3] = byte(v >> 24)
+	a.buf[a.off+4] = byte(v >> 32)
+	a.buf[a.off+5] = byte(v >> 40)
+	a.buf[a.off+6] = byte(v >> 48)
+	a.buf[a.off+7] = byte(v >> 56)
+	a.off += 8
+}
+
+// Put copies b into the buffer.
+func (a *AsmBuf) Put(b []byte) {
+	copy(a.buf[a.off:], b)
+	a.off += len(b)
+}
+
+// Insert inserts b at offset i.
+func (a *AsmBuf) Insert(i int, b byte) {
+	a.off++
+	copy(a.buf[i+1:a.off], a.buf[i:a.off-1])
+	a.buf[i] = b
+}
+
+// Last returns the byte at the end of the buffer.
+func (a *AsmBuf) Last() byte { return a.buf[a.off-1] }
+
+// Len returns the length of the buffer.
+func (a *AsmBuf) Len() int { return a.off }
+
+// Bytes returns the contents of the buffer.
+func (a *AsmBuf) Bytes() []byte { return a.buf[:a.off] }
+
+// Reset empties the buffer.
+func (a *AsmBuf) Reset() { a.off = 0 }
+
+// Peek returns the byte at offset i.
+func (a *AsmBuf) Peek(i int) byte { return a.buf[i] }

vendor/github.com/google/gops/internal/obj/mips/a.out.go

@@ -0,0 +1,375 @@
+// cmd/9c/9.out.h from Vita Nuova.
+//
+//	Copyright © 1994-1999 Lucent Technologies Inc.  All rights reserved.
+//	Portions Copyright © 1995-1997 C H Forsyth (forsyth@terzarima.net)
+//	Portions Copyright © 1997-1999 Vita Nuova Limited
+//	Portions Copyright © 2000-2008 Vita Nuova Holdings Limited (www.vitanuova.com)
+//	Portions Copyright © 2004,2006 Bruce Ellis
+//	Portions Copyright © 2005-2007 C H Forsyth (forsyth@terzarima.net)
+//	Revisions Copyright © 2000-2008 Lucent Technologies Inc. and others
+//	Portions Copyright © 2009 The Go Authors. All rights reserved.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+package mips
+
+import "github.com/google/gops/internal/obj"
+
+//go:generate go run ../stringer.go -i $GOFILE -o anames.go -p mips
+
+/*
+ * mips 64
+ */
+const (
+	NSNAME = 8
+	NSYM   = 50
+	NREG   = 32 /* number of general registers */
+	NFREG  = 32 /* number of floating point registers */
+)
+
+const (
+	REG_R0 = obj.RBaseMIPS64 + iota
+	REG_R1
+	REG_R2
+	REG_R3
+	REG_R4
+	REG_R5
+	REG_R6
+	REG_R7
+	REG_R8
+	REG_R9
+	REG_R10
+	REG_R11
+	REG_R12
+	REG_R13
+	REG_R14
+	REG_R15
+	REG_R16
+	REG_R17
+	REG_R18
+	REG_R19
+	REG_R20
+	REG_R21
+	REG_R22
+	REG_R23
+	REG_R24
+	REG_R25
+	REG_R26
+	REG_R27
+	REG_R28
+	REG_R29
+	REG_R30
+	REG_R31
+
+	REG_F0
+	REG_F1
+	REG_F2
+	REG_F3
+	REG_F4
+	REG_F5
+	REG_F6
+	REG_F7
+	REG_F8
+	REG_F9
+	REG_F10
+	REG_F11
+	REG_F12
+	REG_F13
+	REG_F14
+	REG_F15
+	REG_F16
+	REG_F17
+	REG_F18
+	REG_F19
+	REG_F20
+	REG_F21
+	REG_F22
+	REG_F23
+	REG_F24
+	REG_F25
+	REG_F26
+	REG_F27
+	REG_F28
+	REG_F29
+	REG_F30
+	REG_F31
+
+	REG_HI
+	REG_LO
+
+	// co-processor 0 control registers
+	REG_M0
+	REG_M1
+	REG_M2
+	REG_M3
+	REG_M4
+	REG_M5
+	REG_M6
+	REG_M7
+	REG_M8
+	REG_M9
+	REG_M10
+	REG_M11
+	REG_M12
+	REG_M13
+	REG_M14
+	REG_M15
+	REG_M16
+	REG_M17
+	REG_M18
+	REG_M19
+	REG_M20
+	REG_M21
+	REG_M22
+	REG_M23
+	REG_M24
+	REG_M25
+	REG_M26
+	REG_M27
+	REG_M28
+	REG_M29
+	REG_M30
+	REG_M31
+
+	// FPU control registers
+	REG_FCR0
+	REG_FCR1
+	REG_FCR2
+	REG_FCR3
+	REG_FCR4
+	REG_FCR5
+	REG_FCR6
+	REG_FCR7
+	REG_FCR8
+	REG_FCR9
+	REG_FCR10
+	REG_FCR11
+	REG_FCR12
+	REG_FCR13
+	REG_FCR14
+	REG_FCR15
+	REG_FCR16
+	REG_FCR17
+	REG_FCR18
+	REG_FCR19
+	REG_FCR20
+	REG_FCR21
+	REG_FCR22
+	REG_FCR23
+	REG_FCR24
+	REG_FCR25
+	REG_FCR26
+	REG_FCR27
+	REG_FCR28
+	REG_FCR29
+	REG_FCR30
+	REG_FCR31
+
+	REG_LAST = REG_FCR31 // the last defined register
+
+	REG_SPECIAL = REG_M0
+
+	REGZERO = REG_R0 /* set to zero */
+	REGSP   = REG_R29
+	REGSB   = REG_R28
+	REGLINK = REG_R31
+	REGRET  = REG_R1
+	REGARG  = -1      /* -1 disables passing the first argument in register */
+	REGRT1  = REG_R1  /* reserved for runtime, duffzero and duffcopy */
+	REGRT2  = REG_R2  /* reserved for runtime, duffcopy */
+	REGCTXT = REG_R22 /* context for closures */
+	REGG    = REG_R30 /* G */
+	REGTMP  = REG_R23 /* used by the linker */
+	FREGRET = REG_F0
+)
+
+const (
+	BIG = 32766
+)
+
+const (
+	/* mark flags */
+	FOLL    = 1 << 0
+	LABEL   = 1 << 1
+	LEAF    = 1 << 2
+	SYNC    = 1 << 3
+	BRANCH  = 1 << 4
+	LOAD    = 1 << 5
+	FCMP    = 1 << 6
+	NOSCHED = 1 << 7
+
+	NSCHED = 20
+)
+
+const (
+	C_NONE = iota
+	C_REG
+	C_FREG
+	C_FCREG
+	C_MREG /* special processor register */
+	C_HI
+	C_LO
+	C_ZCON
+	C_SCON /* 16 bit signed */
+	C_UCON /* 32 bit signed, low 16 bits 0 */
+	C_ADD0CON
+	C_AND0CON
+	C_ADDCON /* -0x8000 <= v < 0 */
+	C_ANDCON /* 0 < v <= 0xFFFF */
+	C_LCON   /* other 32 */
+	C_DCON   /* other 64 (could subdivide further) */
+	C_SACON  /* $n(REG) where n <= int16 */
+	C_SECON
+	C_LACON /* $n(REG) where int16 < n <= int32 */
+	C_LECON
+	C_DACON /* $n(REG) where int32 < n */
+	C_STCON /* $tlsvar */
+	C_SBRA
+	C_LBRA
+	C_SAUTO
+	C_LAUTO
+	C_SEXT
+	C_LEXT
+	C_ZOREG
+	C_SOREG
+	C_LOREG
+	C_GOK
+	C_ADDR
+	C_TLS
+	C_TEXTSIZE
+
+	C_NCLASS /* must be the last */
+)
+
+const (
+	AABSD = obj.ABaseMIPS64 + obj.A_ARCHSPECIFIC + iota
+	AABSF
+	AABSW
+	AADD
+	AADDD
+	AADDF
+	AADDU
+	AADDW
+	AAND
+	ABEQ
+	ABFPF
+	ABFPT
+	ABGEZ
+	ABGEZAL
+	ABGTZ
+	ABLEZ
+	ABLTZ
+	ABLTZAL
+	ABNE
+	ABREAK
+	ACMPEQD
+	ACMPEQF
+	ACMPGED
+	ACMPGEF
+	ACMPGTD
+	ACMPGTF
+	ADIV
+	ADIVD
+	ADIVF
+	ADIVU
+	ADIVW
+	AGOK
+	ALUI
+	AMOVB
+	AMOVBU
+	AMOVD
+	AMOVDF
+	AMOVDW
+	AMOVF
+	AMOVFD
+	AMOVFW
+	AMOVH
+	AMOVHU
+	AMOVW
+	AMOVWD
+	AMOVWF
+	AMOVWL
+	AMOVWR
+	AMUL
+	AMULD
+	AMULF
+	AMULU
+	AMULW
+	ANEGD
+	ANEGF
+	ANEGW
+	ANOR
+	AOR
+	AREM
+	AREMU
+	ARFE
+	ASGT
+	ASGTU
+	ASLL
+	ASRA
+	ASRL
+	ASUB
+	ASUBD
+	ASUBF
+	ASUBU
+	ASUBW
+	ASYSCALL
+	ATLBP
+	ATLBR
+	ATLBWI
+	ATLBWR
+	AWORD
+	AXOR
+
+	/* 64-bit */
+	AMOVV
+	AMOVVL
+	AMOVVR
+	ASLLV
+	ASRAV
+	ASRLV
+	ADIVV
+	ADIVVU
+	AREMV
+	AREMVU
+	AMULV
+	AMULVU
+	AADDV
+	AADDVU
+	ASUBV
+	ASUBVU
+
+	/* 64-bit FP */
+	ATRUNCFV
+	ATRUNCDV
+	ATRUNCFW
+	ATRUNCDW
+	AMOVWU
+	AMOVFV
+	AMOVDV
+	AMOVVF
+	AMOVVD
+
+	ALAST
+
+	// aliases
+	AJMP = obj.AJMP
+	AJAL = obj.ACALL
+	ARET = obj.ARET
+)

vendor/github.com/google/gops/internal/obj/mips/anames.go

@@ -0,0 +1,113 @@
+// Generated by stringer -i a.out.go -o anames.go -p mips
+// Do not edit.
+
+package mips
+
+import "github.com/google/gops/internal/obj"
+
+var Anames = []string{
+	obj.A_ARCHSPECIFIC: "ABSD",
+	"ABSF",
+	"ABSW",
+	"ADD",
+	"ADDD",
+	"ADDF",
+	"ADDU",
+	"ADDW",
+	"AND",
+	"BEQ",
+	"BFPF",
+	"BFPT",
+	"BGEZ",
+	"BGEZAL",
+	"BGTZ",
+	"BLEZ",
+	"BLTZ",
+	"BLTZAL",
+	"BNE",
+	"BREAK",
+	"CMPEQD",
+	"CMPEQF",
+	"CMPGED",
+	"CMPGEF",
+	"CMPGTD",
+	"CMPGTF",
+	"DIV",
+	"DIVD",
+	"DIVF",
+	"DIVU",
+	"DIVW",
+	"GOK",
+	"LUI",
+	"MOVB",
+	"MOVBU",
+	"MOVD",
+	"MOVDF",
+	"MOVDW",
+	"MOVF",
+	"MOVFD",
+	"MOVFW",
+	"MOVH",
+	"MOVHU",
+	"MOVW",
+	"MOVWD",
+	"MOVWF",
+	"MOVWL",
+	"MOVWR",
+	"MUL",
+	"MULD",
+	"MULF",
+	"MULU",
+	"MULW",
+	"NEGD",
+	"NEGF",
+	"NEGW",
+	"NOR",
+	"OR",
+	"REM",
+	"REMU",
+	"RFE",
+	"SGT",
+	"SGTU",
+	"SLL",
+	"SRA",
+	"SRL",
+	"SUB",
+	"SUBD",
+	"SUBF",
+	"SUBU",
+	"SUBW",
+	"SYSCALL",
+	"TLBP",
+	"TLBR",
+	"TLBWI",
+	"TLBWR",
+	"WORD",
+	"XOR",
+	"MOVV",
+	"MOVVL",
+	"MOVVR",
+	"SLLV",
+	"SRAV",
+	"SRLV",
+	"DIVV",
+	"DIVVU",
+	"REMV",
+	"REMVU",
+	"MULV",
+	"MULVU",
+	"ADDV",
+	"ADDVU",
+	"SUBV",
+	"SUBVU",
+	"TRUNCFV",
+	"TRUNCDV",
+	"TRUNCFW",
+	"TRUNCDW",
+	"MOVWU",
+	"MOVFV",
+	"MOVDV",
+	"MOVVF",
+	"MOVVD",
+	"LAST",
+}

vendor/github.com/google/gops/internal/obj/mips/anames0.go

@@ -0,0 +1,44 @@
+// Copyright 2015 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package mips
+
+var cnames0 = []string{
+	"NONE",
+	"REG",
+	"FREG",
+	"FCREG",
+	"MREG",
+	"HI",
+	"LO",
+	"ZCON",
+	"SCON",
+	"UCON",
+	"ADD0CON",
+	"AND0CON",
+	"ADDCON",
+	"ANDCON",
+	"LCON",
+	"DCON",
+	"SACON",
+	"SECON",
+	"LACON",
+	"LECON",
+	"DACON",
+	"STCON",
+	"SBRA",
+	"LBRA",
+	"SAUTO",
+	"LAUTO",
+	"SEXT",
+	"LEXT",
+	"ZOREG",
+	"SOREG",
+	"LOREG",
+	"GOK",
+	"ADDR",
+	"TLS",
+	"TEXTSIZE",
+	"NCLASS",
+}

vendor/github.com/google/gops/internal/obj/mips/list0.go

@@ -0,0 +1,85 @@
+// cmd/9l/list.c from Vita Nuova.
+//
+//	Copyright © 1994-1999 Lucent Technologies Inc.  All rights reserved.
+//	Portions Copyright © 1995-1997 C H Forsyth (forsyth@terzarima.net)
+//	Portions Copyright © 1997-1999 Vita Nuova Limited
+//	Portions Copyright © 2000-2008 Vita Nuova Holdings Limited (www.vitanuova.com)
+//	Portions Copyright © 2004,2006 Bruce Ellis
+//	Portions Copyright © 2005-2007 C H Forsyth (forsyth@terzarima.net)
+//	Revisions Copyright © 2000-2008 Lucent Technologies Inc. and others
+//	Portions Copyright © 2009 The Go Authors. All rights reserved.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+package mips
+
+import (
+	"fmt"
+
+	"github.com/google/gops/internal/obj"
+)
+
+func init() {
+	obj.RegisterRegister(obj.RBaseMIPS64, REG_LAST&^1023+1024, Rconv)
+	obj.RegisterOpcode(obj.ABaseMIPS64, Anames)
+}
+
+func Rconv(r int) string {
+	if r == 0 {
+		return "NONE"
+	}
+	if r == REGG {
+		// Special case.
+		return "g"
+	}
+	if r == REGSB {
+		// Special case.
+		return "RSB"
+	}
+	if REG_R0 <= r && r <= REG_R31 {
+		return fmt.Sprintf("R%d", r-REG_R0)
+	}
+	if REG_F0 <= r && r <= REG_F31 {
+		return fmt.Sprintf("F%d", r-REG_F0)
+	}
+	if REG_M0 <= r && r <= REG_M31 {
+		return fmt.Sprintf("M%d", r-REG_M0)
+	}
+	if REG_FCR0 <= r && r <= REG_FCR31 {
+		return fmt.Sprintf("FCR%d", r-REG_FCR0)
+	}
+	if r == REG_HI {
+		return "HI"
+	}
+	if r == REG_LO {
+		return "LO"
+	}
+
+	return fmt.Sprintf("Rgok(%d)", r-obj.RBaseMIPS64)
+}
+
+func DRconv(a int) string {
+	s := "C_??"
+	if a >= C_NONE && a <= C_NCLASS {
+		s = cnames0[a]
+	}
+	var fp string
+	fp += s
+	return fp
+}

vendor/github.com/google/gops/internal/obj/obj.go

@@ -0,0 +1,306 @@
+// Copyright 2009 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package obj
+
+import (
+	"fmt"
+	"path/filepath"
+	"sort"
+	"strings"
+)
+
+// A LineHist records the history of the file input stack, which maps the virtual line number,
+// an incrementing count of lines processed in any input file and typically named lineno,
+// to a stack of file:line pairs showing the path of inclusions that led to that position.
+// The first line directive (//line in Go, #line in assembly) is treated as pushing
+// a new entry on the stack, so that errors can report both the actual and translated
+// line number.
+//
+// In typical use, the virtual lineno begins at 1, and file line numbers also begin at 1,
+// but the only requirements placed upon the numbers by this code are:
+//	- calls to Push, Update, and Pop must be monotonically increasing in lineno
+//	- except as specified by those methods, virtual and file line number increase
+//	  together, so that given (only) calls Push(10, "x.go", 1) and Pop(15),
+//	  virtual line 12 corresponds to x.go line 3.
+type LineHist struct {
+	Top               *LineStack  // current top of stack
+	Ranges            []LineRange // ranges for lookup
+	Dir               string      // directory to qualify relative paths
+	TrimPathPrefix    string      // remove leading TrimPath from recorded file names
+	PrintFilenameOnly bool        // ignore path when pretty-printing a line; internal use only
+	GOROOT            string      // current GOROOT
+}
+
+// A LineStack is an entry in the recorded line history.
+// Although the history at any given line number is a stack,
+// the record for all line processed forms a tree, with common
+// stack prefixes acting as parents.
+type LineStack struct {
+	Parent    *LineStack // parent in inclusion stack
+	Lineno    int        // virtual line number where this entry takes effect
+	File      string     // file name used to open source file, for error messages
+	AbsFile   string     // absolute file name, for pcln tables
+	FileLine  int        // line number in file at Lineno
+	Directive bool
+	Sym       *LSym // for linkgetline - TODO(rsc): remove
+}
+
+func (stk *LineStack) fileLineAt(lineno int) int {
+	return stk.FileLine + lineno - stk.Lineno
+}
+
+// The span of valid linenos in the recorded line history can be broken
+// into a set of ranges, each with a particular stack.
+// A LineRange records one such range.
+type LineRange struct {
+	Start int        // starting lineno
+	Stack *LineStack // top of stack for this range
+}
+
+// startRange starts a new range with the given top of stack.
+func (h *LineHist) startRange(lineno int, top *LineStack) {
+	h.Top = top
+	h.Ranges = append(h.Ranges, LineRange{top.Lineno, top})
+}
+
+// setFile sets stk.File = file and also derives stk.AbsFile.
+func (h *LineHist) setFile(stk *LineStack, file string) {
+	// Note: The exclusion of stk.Directive may be wrong but matches what we've done before.
+	// The check for < avoids putting a path prefix on "<autogenerated>".
+	abs := file
+	if h.Dir != "" && !filepath.IsAbs(file) && !strings.HasPrefix(file, "<") && !stk.Directive {
+		abs = filepath.Join(h.Dir, file)
+	}
+
+	// Remove leading TrimPathPrefix, or else rewrite $GOROOT to literal $GOROOT.
+	if h.TrimPathPrefix != "" && hasPathPrefix(abs, h.TrimPathPrefix) {
+		if abs == h.TrimPathPrefix {
+			abs = ""
+		} else {
+			abs = abs[len(h.TrimPathPrefix)+1:]
+		}
+	} else if hasPathPrefix(abs, h.GOROOT) {
+		abs = "$GOROOT" + abs[len(h.GOROOT):]
+	}
+	if abs == "" {
+		abs = "??"
+	}
+	abs = filepath.Clean(abs)
+	stk.AbsFile = abs
+
+	if file == "" {
+		file = "??"
+	}
+	stk.File = file
+}
+
+// Does s have t as a path prefix?
+// That is, does s == t or does s begin with t followed by a slash?
+// For portability, we allow ASCII case folding, so that hasPathPrefix("a/b/c", "A/B") is true.
+// Similarly, we allow slash folding, so that hasPathPrefix("a/b/c", "a\\b") is true.
+// We do not allow full Unicode case folding, for fear of causing more confusion
+// or harm than good. (For an example of the kinds of things that can go wrong,
+// see http://article.gmane.org/gmane.linux.kernel/1853266.)
+func hasPathPrefix(s string, t string) bool {
+	if len(t) > len(s) {
+		return false
+	}
+	var i int
+	for i = 0; i < len(t); i++ {
+		cs := int(s[i])
+		ct := int(t[i])
+		if 'A' <= cs && cs <= 'Z' {
+			cs += 'a' - 'A'
+		}
+		if 'A' <= ct && ct <= 'Z' {
+			ct += 'a' - 'A'
+		}
+		if cs == '\\' {
+			cs = '/'
+		}
+		if ct == '\\' {
+			ct = '/'
+		}
+		if cs != ct {
+			return false
+		}
+	}
+	return i >= len(s) || s[i] == '/' || s[i] == '\\'
+}
+
+// Push records that at that lineno a new file with the given name was pushed onto the input stack.
+func (h *LineHist) Push(lineno int, file string) {
+	stk := &LineStack{
+		Parent:   h.Top,
+		Lineno:   lineno,
+		FileLine: 1,
+	}
+	h.setFile(stk, file)
+	h.startRange(lineno, stk)
+}
+
+// Pop records that at lineno the current file was popped from the input stack.
+func (h *LineHist) Pop(lineno int) {
+	top := h.Top
+	if top == nil {
+		return
+	}
+	if top.Directive && top.Parent != nil { // pop #line level too
+		top = top.Parent
+	}
+	next := top.Parent
+	if next == nil {
+		h.Top = nil
+		h.Ranges = append(h.Ranges, LineRange{lineno, nil})
+		return
+	}
+
+	// Popping included file. Update parent offset to account for
+	// the virtual line number range taken by the included file.
+	// Cannot modify the LineStack directly, or else lookups
+	// for the earlier line numbers will get the wrong answers,
+	// so make a new one.
+	stk := new(LineStack)
+	*stk = *next
+	stk.Lineno = lineno
+	stk.FileLine = next.fileLineAt(top.Lineno)
+	h.startRange(lineno, stk)
+}
+
+// Update records that at lineno the file name and line number were changed using
+// a line directive (//line in Go, #line in assembly).
+func (h *LineHist) Update(lineno int, file string, line int) {
+	top := h.Top
+	if top == nil {
+		return // shouldn't happen
+	}
+	var stk *LineStack
+	if top.Directive {
+		// Update existing entry, except make copy to avoid changing earlier history.
+		stk = new(LineStack)
+		*stk = *top
+	} else {
+		// Push new entry.
+		stk = &LineStack{
+			Parent:    top,
+			Directive: true,
+		}
+	}
+	stk.Lineno = lineno
+	if stk.File != file {
+		h.setFile(stk, file) // only retain string if needed
+	}
+	stk.FileLine = line
+	h.startRange(lineno, stk)
+}
+
+// AddImport adds a package to the list of imported packages.
+func (ctxt *Link) AddImport(pkg string) {
+	ctxt.Imports = append(ctxt.Imports, pkg)
+}
+
+// At returns the input stack in effect at lineno.
+func (h *LineHist) At(lineno int) *LineStack {
+	i := sort.Search(len(h.Ranges), func(i int) bool {
+		return h.Ranges[i].Start > lineno
+	})
+	// Found first entry beyond lineno.
+	if i == 0 {
+		return nil
+	}
+	return h.Ranges[i-1].Stack
+}
+
+// LineString returns a string giving the file and line number
+// corresponding to lineno, for use in error messages.
+func (h *LineHist) LineString(lineno int) string {
+	stk := h.At(lineno)
+	if stk == nil {
+		return "<unknown line number>"
+	}
+
+	filename := stk.File
+	if h.PrintFilenameOnly {
+		filename = filepath.Base(filename)
+	}
+	text := fmt.Sprintf("%s:%d", filename, stk.fileLineAt(lineno))
+	if stk.Directive && stk.Parent != nil {
+		stk = stk.Parent
+		filename = stk.File
+		if h.PrintFilenameOnly {
+			filename = filepath.Base(filename)
+		}
+		text += fmt.Sprintf("[%s:%d]", filename, stk.fileLineAt(lineno))
+	}
+	const showFullStack = false // was used by old C compilers
+	if showFullStack {
+		for stk.Parent != nil {
+			lineno = stk.Lineno - 1
+			stk = stk.Parent
+			text += fmt.Sprintf(" %s:%d", filename, stk.fileLineAt(lineno))
+			if stk.Directive && stk.Parent != nil {
+				stk = stk.Parent
+				text += fmt.Sprintf("[%s:%d]", filename, stk.fileLineAt(lineno))
+			}
+		}
+	}
+	return text
+}
+
+// FileLine returns the file name and line number
+// at the top of the stack for the given lineno.
+func (h *LineHist) FileLine(lineno int) (file string, line int) {
+	stk := h.At(lineno)
+	if stk == nil {
+		return "??", 0
+	}
+	return stk.File, stk.fileLineAt(lineno)
+}
+
+// AbsFileLine returns the absolute file name and line number
+// at the top of the stack for the given lineno.
+func (h *LineHist) AbsFileLine(lineno int) (file string, line int) {
+	stk := h.At(lineno)
+	if stk == nil {
+		return "??", 0
+	}
+	return stk.AbsFile, stk.fileLineAt(lineno)
+}
+
+// This is a simplified copy of linklinefmt above.
+// It doesn't allow printing the full stack, and it returns the file name and line number separately.
+// TODO: Unify with linklinefmt somehow.
+func linkgetline(ctxt *Link, lineno int32) (f *LSym, l int32) {
+	stk := ctxt.LineHist.At(int(lineno))
+	if stk == nil || stk.AbsFile == "" {
+		return Linklookup(ctxt, "??", HistVersion), 0
+	}
+	if stk.Sym == nil {
+		stk.Sym = Linklookup(ctxt, stk.AbsFile, HistVersion)
+	}
+	return stk.Sym, int32(stk.fileLineAt(int(lineno)))
+}
+
+func Linkprfile(ctxt *Link, line int) {
+	fmt.Printf("%s ", ctxt.LineHist.LineString(line))
+}
+
+func fieldtrack(ctxt *Link, cursym *LSym) {
+	p := cursym.Text
+	if p == nil || p.Link == nil { // handle external functions and ELF section symbols
+		return
+	}
+	ctxt.Cursym = cursym
+
+	for ; p != nil; p = p.Link {
+		if p.As == AUSEFIELD {
+			r := Addrel(ctxt.Cursym)
+			r.Off = 0
+			r.Siz = 0
+			r.Sym = p.From.Sym
+			r.Type = R_USEFIELD
+		}
+	}
+}

vendor/github.com/google/gops/internal/obj/objfile.go

@@ -0,0 +1,606 @@
+// Copyright 2013 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Writing of Go object files.
+//
+// Originally, Go object files were Plan 9 object files, but no longer.
+// Now they are more like standard object files, in that each symbol is defined
+// by an associated memory image (bytes) and a list of relocations to apply
+// during linking. We do not (yet?) use a standard file format, however.
+// For now, the format is chosen to be as simple as possible to read and write.
+// It may change for reasons of efficiency, or we may even switch to a
+// standard file format if there are compelling benefits to doing so.
+// See golang.org/s/go13linker for more background.
+//
+// The file format is:
+//
+//	- magic header: "\x00\x00go17ld"
+//	- byte 1 - version number
+//	- sequence of strings giving dependencies (imported packages)
+//	- empty string (marks end of sequence)
+//	- sequence of symbol references used by the defined symbols
+//	- byte 0xff (marks end of sequence)
+//	- sequence of integer lengths:
+//		- total data length
+//		- total number of relocations
+//		- total number of pcdata
+//		- total number of automatics
+//		- total number of funcdata
+//		- total number of files
+//	- data, the content of the defined symbols
+//	- sequence of defined symbols
+//	- byte 0xff (marks end of sequence)
+//	- magic footer: "\xff\xffgo17ld"
+//
+// All integers are stored in a zigzag varint format.
+// See golang.org/s/go12symtab for a definition.
+//
+// Data blocks and strings are both stored as an integer
+// followed by that many bytes.
+//
+// A symbol reference is a string name followed by a version.
+//
+// A symbol points to other symbols using an index into the symbol
+// reference sequence. Index 0 corresponds to a nil LSym* pointer.
+// In the symbol layout described below "symref index" stands for this
+// index.
+//
+// Each symbol is laid out as the following fields (taken from LSym*):
+//
+//	- byte 0xfe (sanity check for synchronization)
+//	- type [int]
+//	- name & version [symref index]
+//	- flags [int]
+//		1<<0 dupok
+//		1<<1 local
+//		1<<2 add to typelink table
+//	- size [int]
+//	- gotype [symref index]
+//	- p [data block]
+//	- nr [int]
+//	- r [nr relocations, sorted by off]
+//
+// If type == STEXT, there are a few more fields:
+//
+//	- args [int]
+//	- locals [int]
+//	- nosplit [int]
+//	- flags [int]
+//		1<<0 leaf
+//		1<<1 C function
+//		1<<2 function may call reflect.Type.Method
+//	- nlocal [int]
+//	- local [nlocal automatics]
+//	- pcln [pcln table]
+//
+// Each relocation has the encoding:
+//
+//	- off [int]
+//	- siz [int]
+//	- type [int]
+//	- add [int]
+//	- sym [symref index]
+//
+// Each local has the encoding:
+//
+//	- asym [symref index]
+//	- offset [int]
+//	- type [int]
+//	- gotype [symref index]
+//
+// The pcln table has the encoding:
+//
+//	- pcsp [data block]
+//	- pcfile [data block]
+//	- pcline [data block]
+//	- npcdata [int]
+//	- pcdata [npcdata data blocks]
+//	- nfuncdata [int]
+//	- funcdata [nfuncdata symref index]
+//	- funcdatasym [nfuncdata ints]
+//	- nfile [int]
+//	- file [nfile symref index]
+//
+// The file layout and meaning of type integers are architecture-independent.
+//
+// TODO(rsc): The file format is good for a first pass but needs work.
+//	- There are SymID in the object file that should really just be strings.
+
+package obj
+
+import (
+	"bufio"
+	"fmt"
+	"log"
+	"path/filepath"
+	"sort"
+
+	"github.com/google/gops/internal/dwarf"
+	"github.com/google/gops/internal/sys"
+)
+
+// The Go and C compilers, and the assembler, call writeobj to write
+// out a Go object file. The linker does not call this; the linker
+// does not write out object files.
+func Writeobjdirect(ctxt *Link, b *bufio.Writer) {
+	Flushplist(ctxt)
+	WriteObjFile(ctxt, b)
+}
+
+// objWriter writes Go object files.
+type objWriter struct {
+	wr   *bufio.Writer
+	ctxt *Link
+	// Temporary buffer for zigzag int writing.
+	varintbuf [10]uint8
+
+	// Provide the the index of a symbol reference by symbol name.
+	// One map for versioned symbols and one for unversioned symbols.
+	// Used for deduplicating the symbol reference list.
+	refIdx  map[string]int
+	vrefIdx map[string]int
+
+	// Number of objects written of each type.
+	nRefs     int
+	nData     int
+	nReloc    int
+	nPcdata   int
+	nAutom    int
+	nFuncdata int
+	nFile     int
+}
+
+func (w *objWriter) addLengths(s *LSym) {
+	w.nData += len(s.P)
+	w.nReloc += len(s.R)
+
+	if s.Type != STEXT {
+		return
+	}
+
+	pc := s.Pcln
+
+	data := 0
+	data += len(pc.Pcsp.P)
+	data += len(pc.Pcfile.P)
+	data += len(pc.Pcline.P)
+	for i := 0; i < len(pc.Pcdata); i++ {
+		data += len(pc.Pcdata[i].P)
+	}
+
+	w.nData += data
+	w.nPcdata += len(pc.Pcdata)
+
+	autom := 0
+	for a := s.Autom; a != nil; a = a.Link {
+		autom++
+	}
+	w.nAutom += autom
+	w.nFuncdata += len(pc.Funcdataoff)
+	w.nFile += len(pc.File)
+}
+
+func (w *objWriter) writeLengths() {
+	w.writeInt(int64(w.nData))
+	w.writeInt(int64(w.nReloc))
+	w.writeInt(int64(w.nPcdata))
+	w.writeInt(int64(w.nAutom))
+	w.writeInt(int64(w.nFuncdata))
+	w.writeInt(int64(w.nFile))
+}
+
+func newObjWriter(ctxt *Link, b *bufio.Writer) *objWriter {
+	return &objWriter{
+		ctxt:    ctxt,
+		wr:      b,
+		vrefIdx: make(map[string]int),
+		refIdx:  make(map[string]int),
+	}
+}
+
+func WriteObjFile(ctxt *Link, b *bufio.Writer) {
+	w := newObjWriter(ctxt, b)
+
+	// Magic header
+	w.wr.WriteString("\x00\x00go17ld")
+
+	// Version
+	w.wr.WriteByte(1)
+
+	// Autolib
+	for _, pkg := range ctxt.Imports {
+		w.writeString(pkg)
+	}
+	w.writeString("")
+
+	// Symbol references
+	for _, s := range ctxt.Text {
+		w.writeRefs(s)
+		w.addLengths(s)
+	}
+	for _, s := range ctxt.Data {
+		w.writeRefs(s)
+		w.addLengths(s)
+	}
+	// End symbol references
+	w.wr.WriteByte(0xff)
+
+	// Lengths
+	w.writeLengths()
+
+	// Data block
+	for _, s := range ctxt.Text {
+		w.wr.Write(s.P)
+		pc := s.Pcln
+		w.wr.Write(pc.Pcsp.P)
+		w.wr.Write(pc.Pcfile.P)
+		w.wr.Write(pc.Pcline.P)
+		for i := 0; i < len(pc.Pcdata); i++ {
+			w.wr.Write(pc.Pcdata[i].P)
+		}
+	}
+	for _, s := range ctxt.Data {
+		w.wr.Write(s.P)
+	}
+
+	// Symbols
+	for _, s := range ctxt.Text {
+		w.writeSym(s)
+	}
+	for _, s := range ctxt.Data {
+		w.writeSym(s)
+	}
+
+	// Magic footer
+	w.wr.WriteString("\xff\xffgo17ld")
+}
+
+// Symbols are prefixed so their content doesn't get confused with the magic footer.
+const symPrefix = 0xfe
+
+func (w *objWriter) writeRef(s *LSym, isPath bool) {
+	if s == nil || s.RefIdx != 0 {
+		return
+	}
+	var m map[string]int
+	switch s.Version {
+	case 0:
+		m = w.refIdx
+	case 1:
+		m = w.vrefIdx
+	default:
+		log.Fatalf("%s: invalid version number %d", s.Name, s.Version)
+	}
+
+	idx := m[s.Name]
+	if idx != 0 {
+		s.RefIdx = idx
+		return
+	}
+	w.wr.WriteByte(symPrefix)
+	if isPath {
+		w.writeString(filepath.ToSlash(s.Name))
+	} else {
+		w.writeString(s.Name)
+	}
+	w.writeInt(int64(s.Version))
+	w.nRefs++
+	s.RefIdx = w.nRefs
+	m[s.Name] = w.nRefs
+}
+
+func (w *objWriter) writeRefs(s *LSym) {
+	w.writeRef(s, false)
+	w.writeRef(s.Gotype, false)
+	for i := range s.R {
+		w.writeRef(s.R[i].Sym, false)
+	}
+
+	if s.Type == STEXT {
+		for a := s.Autom; a != nil; a = a.Link {
+			w.writeRef(a.Asym, false)
+			w.writeRef(a.Gotype, false)
+		}
+		pc := s.Pcln
+		for _, d := range pc.Funcdata {
+			w.writeRef(d, false)
+		}
+		for _, f := range pc.File {
+			w.writeRef(f, true)
+		}
+	}
+}
+
+func (w *objWriter) writeSymDebug(s *LSym) {
+	ctxt := w.ctxt
+	fmt.Fprintf(ctxt.Bso, "%s ", s.Name)
+	if s.Version != 0 {
+		fmt.Fprintf(ctxt.Bso, "v=%d ", s.Version)
+	}
+	if s.Type != 0 {
+		fmt.Fprintf(ctxt.Bso, "t=%d ", s.Type)
+	}
+	if s.DuplicateOK() {
+		fmt.Fprintf(ctxt.Bso, "dupok ")
+	}
+	if s.CFunc() {
+		fmt.Fprintf(ctxt.Bso, "cfunc ")
+	}
+	if s.NoSplit() {
+		fmt.Fprintf(ctxt.Bso, "nosplit ")
+	}
+	fmt.Fprintf(ctxt.Bso, "size=%d", s.Size)
+	if s.Type == STEXT {
+		fmt.Fprintf(ctxt.Bso, " args=%#x locals=%#x", uint64(s.Args), uint64(s.Locals))
+		if s.Leaf() {
+			fmt.Fprintf(ctxt.Bso, " leaf")
+		}
+	}
+
+	fmt.Fprintf(ctxt.Bso, "\n")
+	for p := s.Text; p != nil; p = p.Link {
+		fmt.Fprintf(ctxt.Bso, "\t%#04x %v\n", uint(int(p.Pc)), p)
+	}
+	var c int
+	var j int
+	for i := 0; i < len(s.P); {
+		fmt.Fprintf(ctxt.Bso, "\t%#04x", uint(i))
+		for j = i; j < i+16 && j < len(s.P); j++ {
+			fmt.Fprintf(ctxt.Bso, " %02x", s.P[j])
+		}
+		for ; j < i+16; j++ {
+			fmt.Fprintf(ctxt.Bso, "   ")
+		}
+		fmt.Fprintf(ctxt.Bso, "  ")
+		for j = i; j < i+16 && j < len(s.P); j++ {
+			c = int(s.P[j])
+			if ' ' <= c && c <= 0x7e {
+				fmt.Fprintf(ctxt.Bso, "%c", c)
+			} else {
+				fmt.Fprintf(ctxt.Bso, ".")
+			}
+		}
+
+		fmt.Fprintf(ctxt.Bso, "\n")
+		i += 16
+	}
+
+	sort.Sort(relocByOff(s.R)) // generate stable output
+	for _, r := range s.R {
+		name := ""
+		if r.Sym != nil {
+			name = r.Sym.Name
+		} else if r.Type == R_TLS_LE {
+			name = "TLS"
+		}
+		if ctxt.Arch.InFamily(sys.ARM, sys.PPC64) {
+			fmt.Fprintf(ctxt.Bso, "\trel %d+%d t=%d %s+%x\n", int(r.Off), r.Siz, r.Type, name, uint64(r.Add))
+		} else {
+			fmt.Fprintf(ctxt.Bso, "\trel %d+%d t=%d %s+%d\n", int(r.Off), r.Siz, r.Type, name, r.Add)
+		}
+	}
+}
+
+func (w *objWriter) writeSym(s *LSym) {
+	ctxt := w.ctxt
+	if ctxt.Debugasm != 0 {
+		w.writeSymDebug(s)
+	}
+
+	w.wr.WriteByte(symPrefix)
+	w.writeInt(int64(s.Type))
+	w.writeRefIndex(s)
+	flags := int64(0)
+	if s.DuplicateOK() {
+		flags |= 1
+	}
+	if s.Local() {
+		flags |= 1 << 1
+	}
+	if s.MakeTypelink() {
+		flags |= 1 << 2
+	}
+	w.writeInt(flags)
+	w.writeInt(s.Size)
+	w.writeRefIndex(s.Gotype)
+	w.writeInt(int64(len(s.P)))
+
+	w.writeInt(int64(len(s.R)))
+	var r *Reloc
+	for i := 0; i < len(s.R); i++ {
+		r = &s.R[i]
+		w.writeInt(int64(r.Off))
+		w.writeInt(int64(r.Siz))
+		w.writeInt(int64(r.Type))
+		w.writeInt(r.Add)
+		w.writeRefIndex(r.Sym)
+	}
+
+	if s.Type != STEXT {
+		return
+	}
+
+	w.writeInt(int64(s.Args))
+	w.writeInt(int64(s.Locals))
+	if s.NoSplit() {
+		w.writeInt(1)
+	} else {
+		w.writeInt(0)
+	}
+	flags = int64(0)
+	if s.Leaf() {
+		flags |= 1
+	}
+	if s.CFunc() {
+		flags |= 1 << 1
+	}
+	if s.ReflectMethod() {
+		flags |= 1 << 2
+	}
+	w.writeInt(flags)
+	n := 0
+	for a := s.Autom; a != nil; a = a.Link {
+		n++
+	}
+	w.writeInt(int64(n))
+	for a := s.Autom; a != nil; a = a.Link {
+		w.writeRefIndex(a.Asym)
+		w.writeInt(int64(a.Aoffset))
+		if a.Name == NAME_AUTO {
+			w.writeInt(A_AUTO)
+		} else if a.Name == NAME_PARAM {
+			w.writeInt(A_PARAM)
+		} else {
+			log.Fatalf("%s: invalid local variable type %d", s.Name, a.Name)
+		}
+		w.writeRefIndex(a.Gotype)
+	}
+
+	pc := s.Pcln
+	w.writeInt(int64(len(pc.Pcsp.P)))
+	w.writeInt(int64(len(pc.Pcfile.P)))
+	w.writeInt(int64(len(pc.Pcline.P)))
+	w.writeInt(int64(len(pc.Pcdata)))
+	for i := 0; i < len(pc.Pcdata); i++ {
+		w.writeInt(int64(len(pc.Pcdata[i].P)))
+	}
+	w.writeInt(int64(len(pc.Funcdataoff)))
+	for i := 0; i < len(pc.Funcdataoff); i++ {
+		w.writeRefIndex(pc.Funcdata[i])
+	}
+	for i := 0; i < len(pc.Funcdataoff); i++ {
+		w.writeInt(pc.Funcdataoff[i])
+	}
+	w.writeInt(int64(len(pc.File)))
+	for _, f := range pc.File {
+		w.writeRefIndex(f)
+	}
+}
+
+func (w *objWriter) writeInt(sval int64) {
+	var v uint64
+	uv := (uint64(sval) << 1) ^ uint64(sval>>63)
+	p := w.varintbuf[:]
+	for v = uv; v >= 0x80; v >>= 7 {
+		p[0] = uint8(v | 0x80)
+		p = p[1:]
+	}
+	p[0] = uint8(v)
+	p = p[1:]
+	w.wr.Write(w.varintbuf[:len(w.varintbuf)-len(p)])
+}
+
+func (w *objWriter) writeString(s string) {
+	w.writeInt(int64(len(s)))
+	w.wr.WriteString(s)
+}
+
+func (w *objWriter) writeRefIndex(s *LSym) {
+	if s == nil {
+		w.writeInt(0)
+		return
+	}
+	if s.RefIdx == 0 {
+		log.Fatalln("writing an unreferenced symbol", s.Name)
+	}
+	w.writeInt(int64(s.RefIdx))
+}
+
+// relocByOff sorts relocations by their offsets.
+type relocByOff []Reloc
+
+func (x relocByOff) Len() int           { return len(x) }
+func (x relocByOff) Less(i, j int) bool { return x[i].Off < x[j].Off }
+func (x relocByOff) Swap(i, j int)      { x[i], x[j] = x[j], x[i] }
+
+// implement dwarf.Context
+type dwCtxt struct{ *Link }
+
+func (c dwCtxt) PtrSize() int {
+	return c.Arch.PtrSize
+}
+func (c dwCtxt) AddInt(s dwarf.Sym, size int, i int64) {
+	ls := s.(*LSym)
+	ls.WriteInt(c.Link, ls.Size, size, i)
+}
+func (c dwCtxt) AddBytes(s dwarf.Sym, b []byte) {
+	ls := s.(*LSym)
+	ls.WriteBytes(c.Link, ls.Size, b)
+}
+func (c dwCtxt) AddString(s dwarf.Sym, v string) {
+	ls := s.(*LSym)
+	ls.WriteString(c.Link, ls.Size, len(v), v)
+	ls.WriteInt(c.Link, ls.Size, 1, 0)
+}
+func (c dwCtxt) SymValue(s dwarf.Sym) int64 {
+	return 0
+}
+func (c dwCtxt) AddAddress(s dwarf.Sym, data interface{}, value int64) {
+	rsym := data.(*LSym)
+	ls := s.(*LSym)
+	size := c.PtrSize()
+	ls.WriteAddr(c.Link, ls.Size, size, rsym, value)
+}
+func (c dwCtxt) AddSectionOffset(s dwarf.Sym, size int, t interface{}, ofs int64) {
+	ls := s.(*LSym)
+	rsym := t.(*LSym)
+	ls.WriteAddr(c.Link, ls.Size, size, rsym, ofs)
+	r := &ls.R[len(ls.R)-1]
+	r.Type = R_DWARFREF
+}
+
+func gendwarf(ctxt *Link, text []*LSym) []*LSym {
+	dctxt := dwCtxt{ctxt}
+	var dw []*LSym
+
+	for _, s := range text {
+		dsym := Linklookup(ctxt, dwarf.InfoPrefix+s.Name, int(s.Version))
+		if dsym.Size != 0 {
+			continue
+		}
+		dw = append(dw, dsym)
+		dsym.Type = SDWARFINFO
+		dsym.Set(AttrDuplicateOK, s.DuplicateOK())
+		var vars dwarf.Var
+		var abbrev int
+		var offs int32
+		for a := s.Autom; a != nil; a = a.Link {
+			switch a.Name {
+			case NAME_AUTO:
+				abbrev = dwarf.DW_ABRV_AUTO
+				offs = a.Aoffset
+				if ctxt.FixedFrameSize() == 0 {
+					offs -= int32(ctxt.Arch.PtrSize)
+				}
+				if Framepointer_enabled(GOOS, GOARCH) {
+					offs -= int32(ctxt.Arch.PtrSize)
+				}
+
+			case NAME_PARAM:
+				abbrev = dwarf.DW_ABRV_PARAM
+				offs = a.Aoffset + int32(ctxt.FixedFrameSize())
+
+			default:
+				continue
+			}
+			typename := dwarf.InfoPrefix + a.Gotype.Name[len("type."):]
+			dwvar := &dwarf.Var{
+				Name:   a.Asym.Name,
+				Abbrev: abbrev,
+				Offset: int32(offs),
+				Type:   Linklookup(ctxt, typename, 0),
+			}
+			dws := &vars.Link
+			for ; *dws != nil; dws = &(*dws).Link {
+				if offs <= (*dws).Offset {
+					break
+				}
+			}
+			dwvar.Link = *dws
+			*dws = dwvar
+		}
+		dwarf.PutFunc(dctxt, dsym, s.Name, s.Version == 0, s, s.Size, vars.Link)
+	}
+	return dw
+}

vendor/github.com/google/gops/internal/obj/pass.go

@@ -0,0 +1,217 @@
+// Inferno utils/6l/pass.c
+// https://bitbucket.org/inferno-os/inferno-os/src/default/utils/6l/pass.c
+//
+//	Copyright © 1994-1999 Lucent Technologies Inc.  All rights reserved.
+//	Portions Copyright © 1995-1997 C H Forsyth (forsyth@terzarima.net)
+//	Portions Copyright © 1997-1999 Vita Nuova Limited
+//	Portions Copyright © 2000-2007 Vita Nuova Holdings Limited (www.vitanuova.com)
+//	Portions Copyright © 2004,2006 Bruce Ellis
+//	Portions Copyright © 2005-2007 C H Forsyth (forsyth@terzarima.net)
+//	Revisions Copyright © 2000-2007 Lucent Technologies Inc. and others
+//	Portions Copyright © 2009 The Go Authors. All rights reserved.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+package obj
+
+// Code and data passes.
+
+func Brchain(ctxt *Link, p *Prog) *Prog {
+	for i := 0; i < 20; i++ {
+		if p == nil || p.As != AJMP || p.Pcond == nil {
+			return p
+		}
+		p = p.Pcond
+	}
+
+	return nil
+}
+
+func brloop(ctxt *Link, p *Prog) *Prog {
+	var q *Prog
+
+	c := 0
+	for q = p; q != nil; q = q.Pcond {
+		if q.As != AJMP || q.Pcond == nil {
+			break
+		}
+		c++
+		if c >= 5000 {
+			return nil
+		}
+	}
+
+	return q
+}
+
+func checkaddr(ctxt *Link, p *Prog, a *Addr) {
+	// Check expected encoding, especially TYPE_CONST vs TYPE_ADDR.
+	switch a.Type {
+	case TYPE_NONE:
+		return
+
+	case TYPE_BRANCH:
+		if a.Reg != 0 || a.Index != 0 || a.Scale != 0 || a.Name != 0 {
+			break
+		}
+		return
+
+	case TYPE_TEXTSIZE:
+		if a.Reg != 0 || a.Index != 0 || a.Scale != 0 || a.Name != 0 {
+			break
+		}
+		return
+
+		//if(a->u.bits != 0)
+	//	break;
+	case TYPE_MEM:
+		return
+
+		// TODO(rsc): After fixing SHRQ, check a->index != 0 too.
+	case TYPE_CONST:
+		if a.Name != 0 || a.Sym != nil || a.Reg != 0 {
+			ctxt.Diag("argument is TYPE_CONST, should be TYPE_ADDR, in %v", p)
+			return
+		}
+
+		if a.Reg != 0 || a.Scale != 0 || a.Name != 0 || a.Sym != nil || a.Val != nil {
+			break
+		}
+		return
+
+	case TYPE_FCONST, TYPE_SCONST:
+		if a.Reg != 0 || a.Index != 0 || a.Scale != 0 || a.Name != 0 || a.Offset != 0 || a.Sym != nil {
+			break
+		}
+		return
+
+	// TODO(rsc): After fixing PINSRQ, check a->offset != 0 too.
+	// TODO(rsc): After fixing SHRQ, check a->index != 0 too.
+	case TYPE_REG:
+		if a.Scale != 0 || a.Name != 0 || a.Sym != nil {
+			break
+		}
+		return
+
+	case TYPE_ADDR:
+		if a.Val != nil {
+			break
+		}
+		if a.Reg == 0 && a.Index == 0 && a.Scale == 0 && a.Name == 0 && a.Sym == nil {
+			ctxt.Diag("argument is TYPE_ADDR, should be TYPE_CONST, in %v", p)
+		}
+		return
+
+	case TYPE_SHIFT:
+		if a.Index != 0 || a.Scale != 0 || a.Name != 0 || a.Sym != nil || a.Val != nil {
+			break
+		}
+		return
+
+	case TYPE_REGREG:
+		if a.Index != 0 || a.Scale != 0 || a.Name != 0 || a.Sym != nil || a.Val != nil {
+			break
+		}
+		return
+
+	case TYPE_REGREG2:
+		return
+
+	case TYPE_REGLIST:
+		return
+
+	// Expect sym and name to be set, nothing else.
+	// Technically more is allowed, but this is only used for *name(SB).
+	case TYPE_INDIR:
+		if a.Reg != 0 || a.Index != 0 || a.Scale != 0 || a.Name == 0 || a.Offset != 0 || a.Sym == nil || a.Val != nil {
+			break
+		}
+		return
+	}
+
+	ctxt.Diag("invalid encoding for argument %v", p)
+}
+
+func linkpatch(ctxt *Link, sym *LSym) {
+	var c int32
+	var name string
+	var q *Prog
+
+	ctxt.Cursym = sym
+
+	for p := sym.Text; p != nil; p = p.Link {
+		checkaddr(ctxt, p, &p.From)
+		if p.From3 != nil {
+			checkaddr(ctxt, p, p.From3)
+		}
+		checkaddr(ctxt, p, &p.To)
+
+		if ctxt.Arch.Progedit != nil {
+			ctxt.Arch.Progedit(ctxt, p)
+		}
+		if p.To.Type != TYPE_BRANCH {
+			continue
+		}
+		if p.To.Val != nil {
+			// TODO: Remove To.Val.(*Prog) in favor of p->pcond.
+			p.Pcond = p.To.Val.(*Prog)
+			continue
+		}
+
+		if p.To.Sym != nil {
+			continue
+		}
+		c = int32(p.To.Offset)
+		for q = sym.Text; q != nil; {
+			if int64(c) == q.Pc {
+				break
+			}
+			if q.Forwd != nil && int64(c) >= q.Forwd.Pc {
+				q = q.Forwd
+			} else {
+				q = q.Link
+			}
+		}
+
+		if q == nil {
+			name = "<nil>"
+			if p.To.Sym != nil {
+				name = p.To.Sym.Name
+			}
+			ctxt.Diag("branch out of range (%#x)\n%v [%s]", uint32(c), p, name)
+			p.To.Type = TYPE_NONE
+		}
+
+		p.To.Val = q
+		p.Pcond = q
+	}
+
+	if ctxt.Flag_optimize {
+		for p := sym.Text; p != nil; p = p.Link {
+			if p.Pcond != nil {
+				p.Pcond = brloop(ctxt, p.Pcond)
+				if p.Pcond != nil {
+					if p.To.Type == TYPE_BRANCH {
+						p.To.Offset = p.Pcond.Pc
+					}
+				}
+			}
+		}
+	}
+}

vendor/github.com/google/gops/internal/obj/pcln.go

@@ -0,0 +1,281 @@
+// Copyright 2013 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package obj
+
+import "log"
+
+func addvarint(ctxt *Link, d *Pcdata, val uint32) {
+	var v uint32
+	for v = val; v >= 0x80; v >>= 7 {
+		d.P = append(d.P, uint8(v|0x80))
+	}
+	d.P = append(d.P, uint8(v))
+}
+
+// funcpctab writes to dst a pc-value table mapping the code in func to the values
+// returned by valfunc parameterized by arg. The invocation of valfunc to update the
+// current value is, for each p,
+//
+//	val = valfunc(func, val, p, 0, arg);
+//	record val as value at p->pc;
+//	val = valfunc(func, val, p, 1, arg);
+//
+// where func is the function, val is the current value, p is the instruction being
+// considered, and arg can be used to further parameterize valfunc.
+func funcpctab(ctxt *Link, dst *Pcdata, func_ *LSym, desc string, valfunc func(*Link, *LSym, int32, *Prog, int32, interface{}) int32, arg interface{}) {
+	// To debug a specific function, uncomment lines and change name.
+	dbg := 0
+
+	//if func_.Name == "main.main" || desc == "pctospadj" {
+	//	dbg = 1
+	//}
+
+	ctxt.Debugpcln += int32(dbg)
+
+	dst.P = dst.P[:0]
+
+	if ctxt.Debugpcln != 0 {
+		ctxt.Logf("funcpctab %s [valfunc=%s]\n", func_.Name, desc)
+	}
+
+	val := int32(-1)
+	oldval := val
+	if func_.Text == nil {
+		ctxt.Debugpcln -= int32(dbg)
+		return
+	}
+
+	pc := func_.Text.Pc
+
+	if ctxt.Debugpcln != 0 {
+		ctxt.Logf("%6x %6d %v\n", uint64(pc), val, func_.Text)
+	}
+
+	started := int32(0)
+	var delta uint32
+	for p := func_.Text; p != nil; p = p.Link {
+		// Update val. If it's not changing, keep going.
+		val = valfunc(ctxt, func_, val, p, 0, arg)
+
+		if val == oldval && started != 0 {
+			val = valfunc(ctxt, func_, val, p, 1, arg)
+			if ctxt.Debugpcln != 0 {
+				ctxt.Logf("%6x %6s %v\n", uint64(p.Pc), "", p)
+			}
+			continue
+		}
+
+		// If the pc of the next instruction is the same as the
+		// pc of this instruction, this instruction is not a real
+		// instruction. Keep going, so that we only emit a delta
+		// for a true instruction boundary in the program.
+		if p.Link != nil && p.Link.Pc == p.Pc {
+			val = valfunc(ctxt, func_, val, p, 1, arg)
+			if ctxt.Debugpcln != 0 {
+				ctxt.Logf("%6x %6s %v\n", uint64(p.Pc), "", p)
+			}
+			continue
+		}
+
+		// The table is a sequence of (value, pc) pairs, where each
+		// pair states that the given value is in effect from the current position
+		// up to the given pc, which becomes the new current position.
+		// To generate the table as we scan over the program instructions,
+		// we emit a "(value" when pc == func->value, and then
+		// each time we observe a change in value we emit ", pc) (value".
+		// When the scan is over, we emit the closing ", pc)".
+		//
+		// The table is delta-encoded. The value deltas are signed and
+		// transmitted in zig-zag form, where a complement bit is placed in bit 0,
+		// and the pc deltas are unsigned. Both kinds of deltas are sent
+		// as variable-length little-endian base-128 integers,
+		// where the 0x80 bit indicates that the integer continues.
+
+		if ctxt.Debugpcln != 0 {
+			ctxt.Logf("%6x %6d %v\n", uint64(p.Pc), val, p)
+		}
+
+		if started != 0 {
+			addvarint(ctxt, dst, uint32((p.Pc-pc)/int64(ctxt.Arch.MinLC)))
+			pc = p.Pc
+		}
+
+		delta = uint32(val) - uint32(oldval)
+		if delta>>31 != 0 {
+			delta = 1 | ^(delta << 1)
+		} else {
+			delta <<= 1
+		}
+		addvarint(ctxt, dst, delta)
+		oldval = val
+		started = 1
+		val = valfunc(ctxt, func_, val, p, 1, arg)
+	}
+
+	if started != 0 {
+		if ctxt.Debugpcln != 0 {
+			ctxt.Logf("%6x done\n", uint64(func_.Text.Pc+func_.Size))
+		}
+		addvarint(ctxt, dst, uint32((func_.Size-pc)/int64(ctxt.Arch.MinLC)))
+		addvarint(ctxt, dst, 0) // terminator
+	}
+
+	if ctxt.Debugpcln != 0 {
+		ctxt.Logf("wrote %d bytes to %p\n", len(dst.P), dst)
+		for i := 0; i < len(dst.P); i++ {
+			ctxt.Logf(" %02x", dst.P[i])
+		}
+		ctxt.Logf("\n")
+	}
+
+	ctxt.Debugpcln -= int32(dbg)
+}
+
+// pctofileline computes either the file number (arg == 0)
+// or the line number (arg == 1) to use at p.
+// Because p->lineno applies to p, phase == 0 (before p)
+// takes care of the update.
+func pctofileline(ctxt *Link, sym *LSym, oldval int32, p *Prog, phase int32, arg interface{}) int32 {
+	if p.As == ATEXT || p.As == ANOP || p.As == AUSEFIELD || p.Lineno == 0 || phase == 1 {
+		return oldval
+	}
+	f, l := linkgetline(ctxt, p.Lineno)
+	if f == nil {
+		//	print("getline failed for %s %v\n", ctxt->cursym->name, p);
+		return oldval
+	}
+
+	if arg == nil {
+		return l
+	}
+	pcln := arg.(*Pcln)
+
+	if f == pcln.Lastfile {
+		return int32(pcln.Lastindex)
+	}
+
+	for i, file := range pcln.File {
+		if file == f {
+			pcln.Lastfile = f
+			pcln.Lastindex = i
+			return int32(i)
+		}
+	}
+	i := len(pcln.File)
+	pcln.File = append(pcln.File, f)
+	pcln.Lastfile = f
+	pcln.Lastindex = i
+	return int32(i)
+}
+
+// pctospadj computes the sp adjustment in effect.
+// It is oldval plus any adjustment made by p itself.
+// The adjustment by p takes effect only after p, so we
+// apply the change during phase == 1.
+func pctospadj(ctxt *Link, sym *LSym, oldval int32, p *Prog, phase int32, arg interface{}) int32 {
+	if oldval == -1 { // starting
+		oldval = 0
+	}
+	if phase == 0 {
+		return oldval
+	}
+	if oldval+p.Spadj < -10000 || oldval+p.Spadj > 1100000000 {
+		ctxt.Diag("overflow in spadj: %d + %d = %d", oldval, p.Spadj, oldval+p.Spadj)
+		log.Fatalf("bad code")
+	}
+
+	return oldval + p.Spadj
+}
+
+// pctopcdata computes the pcdata value in effect at p.
+// A PCDATA instruction sets the value in effect at future
+// non-PCDATA instructions.
+// Since PCDATA instructions have no width in the final code,
+// it does not matter which phase we use for the update.
+func pctopcdata(ctxt *Link, sym *LSym, oldval int32, p *Prog, phase int32, arg interface{}) int32 {
+	if phase == 0 || p.As != APCDATA || p.From.Offset != int64(arg.(uint32)) {
+		return oldval
+	}
+	if int64(int32(p.To.Offset)) != p.To.Offset {
+		ctxt.Diag("overflow in PCDATA instruction: %v", p)
+		log.Fatalf("bad code")
+	}
+
+	return int32(p.To.Offset)
+}
+
+func linkpcln(ctxt *Link, cursym *LSym) {
+	ctxt.Cursym = cursym
+
+	pcln := new(Pcln)
+	cursym.Pcln = pcln
+
+	npcdata := 0
+	nfuncdata := 0
+	for p := cursym.Text; p != nil; p = p.Link {
+		// Find the highest ID of any used PCDATA table. This ignores PCDATA table
+		// that consist entirely of "-1", since that's the assumed default value.
+		//   From.Offset is table ID
+		//   To.Offset is data
+		if p.As == APCDATA && p.From.Offset >= int64(npcdata) && p.To.Offset != -1 { // ignore -1 as we start at -1, if we only see -1, nothing changed
+			npcdata = int(p.From.Offset + 1)
+		}
+		// Find the highest ID of any FUNCDATA table.
+		//   From.Offset is table ID
+		if p.As == AFUNCDATA && p.From.Offset >= int64(nfuncdata) {
+			nfuncdata = int(p.From.Offset + 1)
+		}
+	}
+
+	pcln.Pcdata = make([]Pcdata, npcdata)
+	pcln.Pcdata = pcln.Pcdata[:npcdata]
+	pcln.Funcdata = make([]*LSym, nfuncdata)
+	pcln.Funcdataoff = make([]int64, nfuncdata)
+	pcln.Funcdataoff = pcln.Funcdataoff[:nfuncdata]
+
+	funcpctab(ctxt, &pcln.Pcsp, cursym, "pctospadj", pctospadj, nil)
+	funcpctab(ctxt, &pcln.Pcfile, cursym, "pctofile", pctofileline, pcln)
+	funcpctab(ctxt, &pcln.Pcline, cursym, "pctoline", pctofileline, nil)
+
+	// tabulate which pc and func data we have.
+	havepc := make([]uint32, (npcdata+31)/32)
+	havefunc := make([]uint32, (nfuncdata+31)/32)
+	for p := cursym.Text; p != nil; p = p.Link {
+		if p.As == AFUNCDATA {
+			if (havefunc[p.From.Offset/32]>>uint64(p.From.Offset%32))&1 != 0 {
+				ctxt.Diag("multiple definitions for FUNCDATA $%d", p.From.Offset)
+			}
+			havefunc[p.From.Offset/32] |= 1 << uint64(p.From.Offset%32)
+		}
+
+		if p.As == APCDATA && p.To.Offset != -1 {
+			havepc[p.From.Offset/32] |= 1 << uint64(p.From.Offset%32)
+		}
+	}
+
+	// pcdata.
+	for i := 0; i < npcdata; i++ {
+		if (havepc[i/32]>>uint(i%32))&1 == 0 {
+			continue
+		}
+		funcpctab(ctxt, &pcln.Pcdata[i], cursym, "pctopcdata", pctopcdata, interface{}(uint32(i)))
+	}
+
+	// funcdata
+	if nfuncdata > 0 {
+		var i int
+		for p := cursym.Text; p != nil; p = p.Link {
+			if p.As == AFUNCDATA {
+				i = int(p.From.Offset)
+				pcln.Funcdataoff[i] = p.To.Offset
+				if p.To.Type != TYPE_CONST {
+					// TODO: Dedup.
+					//funcdata_bytes += p->to.sym->size;
+					pcln.Funcdata[i] = p.To.Sym
+				}
+			}
+		}
+	}
+}

vendor/github.com/google/gops/internal/obj/plist.go

@@ -0,0 +1,208 @@
+// Copyright 2013 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package obj
+
+import (
+	"fmt"
+	"log"
+	"strings"
+)
+
+type Plist struct {
+	Firstpc *Prog
+}
+
+/*
+ * start a new Prog list.
+ */
+func Linknewplist(ctxt *Link) *Plist {
+	pl := new(Plist)
+	ctxt.Plists = append(ctxt.Plists, pl)
+	return pl
+}
+
+func Flushplist(ctxt *Link) {
+	flushplist(ctxt, ctxt.Debugasm == 0)
+}
+func FlushplistNoFree(ctxt *Link) {
+	flushplist(ctxt, false)
+}
+func flushplist(ctxt *Link, freeProgs bool) {
+	// Build list of symbols, and assign instructions to lists.
+	// Ignore ctxt->plist boundaries. There are no guarantees there,
+	// and the assemblers just use one big list.
+	var curtext *LSym
+	var etext *Prog
+	var text []*LSym
+
+	for _, pl := range ctxt.Plists {
+		var plink *Prog
+		for p := pl.Firstpc; p != nil; p = plink {
+			if ctxt.Debugasm != 0 && ctxt.Debugvlog != 0 {
+				fmt.Printf("obj: %v\n", p)
+			}
+			plink = p.Link
+			p.Link = nil
+
+			switch p.As {
+			case AEND:
+				continue
+
+			case ATYPE:
+				// Assume each TYPE instruction describes
+				// a different local variable or parameter,
+				// so no dedup.
+				// Using only the TYPE instructions means
+				// that we discard location information about local variables
+				// in C and assembly functions; that information is inferred
+				// from ordinary references, because there are no TYPE
+				// instructions there. Without the type information, gdb can't
+				// use the locations, so we don't bother to save them.
+				// If something else could use them, we could arrange to
+				// preserve them.
+				if curtext == nil {
+					continue
+				}
+				a := new(Auto)
+				a.Asym = p.From.Sym
+				a.Aoffset = int32(p.From.Offset)
+				a.Name = int16(p.From.Name)
+				a.Gotype = p.To.Sym
+				a.Link = curtext.Autom
+				curtext.Autom = a
+				continue
+
+			case ATEXT:
+				s := p.From.Sym
+				if s == nil {
+					// func _() { }
+					curtext = nil
+
+					continue
+				}
+
+				if s.Text != nil {
+					log.Fatalf("duplicate TEXT for %s", s.Name)
+				}
+				if s.OnList() {
+					log.Fatalf("symbol %s listed multiple times", s.Name)
+				}
+				s.Set(AttrOnList, true)
+				text = append(text, s)
+				flag := int(p.From3Offset())
+				if flag&DUPOK != 0 {
+					s.Set(AttrDuplicateOK, true)
+				}
+				if flag&NOSPLIT != 0 {
+					s.Set(AttrNoSplit, true)
+				}
+				if flag&REFLECTMETHOD != 0 {
+					s.Set(AttrReflectMethod, true)
+				}
+				s.Type = STEXT
+				s.Text = p
+				etext = p
+				curtext = s
+				continue
+
+			case AFUNCDATA:
+				// Rewrite reference to go_args_stackmap(SB) to the Go-provided declaration information.
+				if curtext == nil { // func _() {}
+					continue
+				}
+				if p.To.Sym.Name == "go_args_stackmap" {
+					if p.From.Type != TYPE_CONST || p.From.Offset != FUNCDATA_ArgsPointerMaps {
+						ctxt.Diag("FUNCDATA use of go_args_stackmap(SB) without FUNCDATA_ArgsPointerMaps")
+					}
+					p.To.Sym = Linklookup(ctxt, fmt.Sprintf("%s.args_stackmap", curtext.Name), int(curtext.Version))
+				}
+
+			}
+
+			if curtext == nil {
+				etext = nil
+				continue
+			}
+			etext.Link = p
+			etext = p
+		}
+	}
+
+	// Add reference to Go arguments for C or assembly functions without them.
+	for _, s := range text {
+		if !strings.HasPrefix(s.Name, "\"\".") {
+			continue
+		}
+		found := false
+		var p *Prog
+		for p = s.Text; p != nil; p = p.Link {
+			if p.As == AFUNCDATA && p.From.Type == TYPE_CONST && p.From.Offset == FUNCDATA_ArgsPointerMaps {
+				found = true
+				break
+			}
+		}
+
+		if !found {
+			p = Appendp(ctxt, s.Text)
+			p.As = AFUNCDATA
+			p.From.Type = TYPE_CONST
+			p.From.Offset = FUNCDATA_ArgsPointerMaps
+			p.To.Type = TYPE_MEM
+			p.To.Name = NAME_EXTERN
+			p.To.Sym = Linklookup(ctxt, fmt.Sprintf("%s.args_stackmap", s.Name), int(s.Version))
+		}
+	}
+
+	// Turn functions into machine code images.
+	for _, s := range text {
+		mkfwd(s)
+		linkpatch(ctxt, s)
+		if ctxt.Flag_optimize {
+			ctxt.Arch.Follow(ctxt, s)
+		}
+		ctxt.Arch.Preprocess(ctxt, s)
+		ctxt.Arch.Assemble(ctxt, s)
+		fieldtrack(ctxt, s)
+		linkpcln(ctxt, s)
+		if freeProgs {
+			s.Text = nil
+		}
+	}
+
+	// Add to running list in ctxt.
+	ctxt.Text = append(ctxt.Text, text...)
+	ctxt.Data = append(ctxt.Data, gendwarf(ctxt, text)...)
+	ctxt.Plists = nil
+	ctxt.Curp = nil
+	if freeProgs {
+		ctxt.freeProgs()
+	}
+}
+
+func (ctxt *Link) Globl(s *LSym, size int64, flag int) {
+	if s.SeenGlobl() {
+		fmt.Printf("duplicate %v\n", s)
+	}
+	s.Set(AttrSeenGlobl, true)
+	if s.OnList() {
+		log.Fatalf("symbol %s listed multiple times", s.Name)
+	}
+	s.Set(AttrOnList, true)
+	ctxt.Data = append(ctxt.Data, s)
+	s.Size = size
+	if s.Type == 0 || s.Type == SXREF {
+		s.Type = SBSS
+	}
+	if flag&DUPOK != 0 {
+		s.Set(AttrDuplicateOK, true)
+	}
+	if flag&RODATA != 0 {
+		s.Type = SRODATA
+	} else if flag&NOPTR != 0 {
+		s.Type = SNOPTRBSS
+	} else if flag&TLSBSS != 0 {
+		s.Type = STLSBSS
+	}
+}

vendor/github.com/google/gops/internal/obj/ppc64/a.out.go

@@ -0,0 +1,941 @@
+// cmd/9c/9.out.h from Vita Nuova.
+//
+//	Copyright © 1994-1999 Lucent Technologies Inc.  All rights reserved.
+//	Portions Copyright © 1995-1997 C H Forsyth (forsyth@terzarima.net)
+//	Portions Copyright © 1997-1999 Vita Nuova Limited
+//	Portions Copyright © 2000-2008 Vita Nuova Holdings Limited (www.vitanuova.com)
+//	Portions Copyright © 2004,2006 Bruce Ellis
+//	Portions Copyright © 2005-2007 C H Forsyth (forsyth@terzarima.net)
+//	Revisions Copyright © 2000-2008 Lucent Technologies Inc. and others
+//	Portions Copyright © 2009 The Go Authors. All rights reserved.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+package ppc64
+
+import "github.com/google/gops/internal/obj"
+
+//go:generate go run ../stringer.go -i $GOFILE -o anames.go -p ppc64
+
+/*
+ * powerpc 64
+ */
+const (
+	NSNAME = 8
+	NSYM   = 50
+	NREG   = 32 /* number of general registers */
+	NFREG  = 32 /* number of floating point registers */
+)
+
+const (
+	/* RBasePPC64 = 4096 */
+	/* R0=4096 ... R31=4127 */
+	REG_R0 = obj.RBasePPC64 + iota
+	REG_R1
+	REG_R2
+	REG_R3
+	REG_R4
+	REG_R5
+	REG_R6
+	REG_R7
+	REG_R8
+	REG_R9
+	REG_R10
+	REG_R11
+	REG_R12
+	REG_R13
+	REG_R14
+	REG_R15
+	REG_R16
+	REG_R17
+	REG_R18
+	REG_R19
+	REG_R20
+	REG_R21
+	REG_R22
+	REG_R23
+	REG_R24
+	REG_R25
+	REG_R26
+	REG_R27
+	REG_R28
+	REG_R29
+	REG_R30
+	REG_R31
+
+	/* F0=4128 ... F31=4159 */
+	REG_F0
+	REG_F1
+	REG_F2
+	REG_F3
+	REG_F4
+	REG_F5
+	REG_F6
+	REG_F7
+	REG_F8
+	REG_F9
+	REG_F10
+	REG_F11
+	REG_F12
+	REG_F13
+	REG_F14
+	REG_F15
+	REG_F16
+	REG_F17
+	REG_F18
+	REG_F19
+	REG_F20
+	REG_F21
+	REG_F22
+	REG_F23
+	REG_F24
+	REG_F25
+	REG_F26
+	REG_F27
+	REG_F28
+	REG_F29
+	REG_F30
+	REG_F31
+
+	/* V0=4160 ... V31=4191 */
+	REG_V0
+	REG_V1
+	REG_V2
+	REG_V3
+	REG_V4
+	REG_V5
+	REG_V6
+	REG_V7
+	REG_V8
+	REG_V9
+	REG_V10
+	REG_V11
+	REG_V12
+	REG_V13
+	REG_V14
+	REG_V15
+	REG_V16
+	REG_V17
+	REG_V18
+	REG_V19
+	REG_V20
+	REG_V21
+	REG_V22
+	REG_V23
+	REG_V24
+	REG_V25
+	REG_V26
+	REG_V27
+	REG_V28
+	REG_V29
+	REG_V30
+	REG_V31
+
+	/* VS0=4192 ... VS63=4255 */
+	REG_VS0
+	REG_VS1
+	REG_VS2
+	REG_VS3
+	REG_VS4
+	REG_VS5
+	REG_VS6
+	REG_VS7
+	REG_VS8
+	REG_VS9
+	REG_VS10
+	REG_VS11
+	REG_VS12
+	REG_VS13
+	REG_VS14
+	REG_VS15
+	REG_VS16
+	REG_VS17
+	REG_VS18
+	REG_VS19
+	REG_VS20
+	REG_VS21
+	REG_VS22
+	REG_VS23
+	REG_VS24
+	REG_VS25
+	REG_VS26
+	REG_VS27
+	REG_VS28
+	REG_VS29
+	REG_VS30
+	REG_VS31
+	REG_VS32
+	REG_VS33
+	REG_VS34
+	REG_VS35
+	REG_VS36
+	REG_VS37
+	REG_VS38
+	REG_VS39
+	REG_VS40
+	REG_VS41
+	REG_VS42
+	REG_VS43
+	REG_VS44
+	REG_VS45
+	REG_VS46
+	REG_VS47
+	REG_VS48
+	REG_VS49
+	REG_VS50
+	REG_VS51
+	REG_VS52
+	REG_VS53
+	REG_VS54
+	REG_VS55
+	REG_VS56
+	REG_VS57
+	REG_VS58
+	REG_VS59
+	REG_VS60
+	REG_VS61
+	REG_VS62
+	REG_VS63
+
+	REG_CR0
+	REG_CR1
+	REG_CR2
+	REG_CR3
+	REG_CR4
+	REG_CR5
+	REG_CR6
+	REG_CR7
+
+	REG_MSR
+	REG_FPSCR
+	REG_CR
+
+	REG_SPECIAL = REG_CR0
+
+	REG_SPR0 = obj.RBasePPC64 + 1024 // first of 1024 registers
+	REG_DCR0 = obj.RBasePPC64 + 2048 // first of 1024 registers
+
+	REG_XER = REG_SPR0 + 1
+	REG_LR  = REG_SPR0 + 8
+	REG_CTR = REG_SPR0 + 9
+
+	REGZERO = REG_R0 /* set to zero */
+	REGSP   = REG_R1
+	REGSB   = REG_R2
+	REGRET  = REG_R3
+	REGARG  = -1      /* -1 disables passing the first argument in register */
+	REGRT1  = REG_R3  /* reserved for runtime, duffzero and duffcopy */
+	REGRT2  = REG_R4  /* reserved for runtime, duffcopy */
+	REGMIN  = REG_R7  /* register variables allocated from here to REGMAX */
+	REGCTXT = REG_R11 /* context for closures */
+	REGTLS  = REG_R13 /* C ABI TLS base pointer */
+	REGMAX  = REG_R27
+	REGEXT  = REG_R30 /* external registers allocated from here down */
+	REGG    = REG_R30 /* G */
+	REGTMP  = REG_R31 /* used by the linker */
+	FREGRET = REG_F0
+	FREGMIN = REG_F17 /* first register variable */
+	FREGMAX = REG_F26 /* last register variable for 9g only */
+	FREGEXT = REG_F26 /* first external register */
+)
+
+/*
+ * GENERAL:
+ *
+ * compiler allocates R3 up as temps
+ * compiler allocates register variables R7-R27
+ * compiler allocates external registers R30 down
+ *
+ * compiler allocates register variables F17-F26
+ * compiler allocates external registers F26 down
+ */
+const (
+	BIG = 32768 - 8
+)
+
+const (
+	/* mark flags */
+	LABEL   = 1 << 0
+	LEAF    = 1 << 1
+	FLOAT   = 1 << 2
+	BRANCH  = 1 << 3
+	LOAD    = 1 << 4
+	FCMP    = 1 << 5
+	SYNC    = 1 << 6
+	LIST    = 1 << 7
+	FOLL    = 1 << 8
+	NOSCHED = 1 << 9
+)
+
+// Values for use in branch instruction BC
+// BC B0,BI,label
+// BO is type of branch + likely bits described below
+// BI is CR value + branch type
+// ex: BEQ CR2,label is BC 12,10,label
+//   12 = BO_BCR
+//   10 = BI_CR2 + BI_EQ
+
+const (
+	BI_CR0 = 0
+	BI_CR1 = 4
+	BI_CR2 = 8
+	BI_CR3 = 12
+	BI_CR4 = 16
+	BI_CR5 = 20
+	BI_CR6 = 24
+	BI_CR7 = 28
+	BI_LT  = 0
+	BI_GT  = 1
+	BI_EQ  = 2
+	BI_OVF = 3
+)
+
+// Values for the BO field.  Add the branch type to
+// the likely bits, if a likely setting is known.
+// If branch likely or unlikely is not known, don't set it.
+// e.g. branch on cr+likely = 15
+
+const (
+	BO_BCTR     = 16 // branch on ctr value
+	BO_BCR      = 12 // branch on cr value
+	BO_BCRBCTR  = 8  // branch on ctr and cr value
+	BO_NOTBCR   = 4  // branch on not cr value
+	BO_UNLIKELY = 2  // value for unlikely
+	BO_LIKELY   = 3  // value for likely
+)
+
+// Bit settings from the CR
+
+const (
+	C_COND_LT = iota // 0 result is negative
+	C_COND_GT        // 1 result is positive
+	C_COND_EQ        // 2 result is zero
+	C_COND_SO        // 3 summary overflow or FP compare w/ NaN
+)
+
+const (
+	C_NONE = iota
+	C_REG
+	C_FREG
+	C_VREG
+	C_VSREG
+	C_CREG
+	C_SPR /* special processor register */
+	C_ZCON
+	C_SCON   /* 16 bit signed */
+	C_UCON   /* 32 bit signed, low 16 bits 0 */
+	C_ADDCON /* -0x8000 <= v < 0 */
+	C_ANDCON /* 0 < v <= 0xFFFF */
+	C_LCON   /* other 32 */
+	C_DCON   /* other 64 (could subdivide further) */
+	C_SACON  /* $n(REG) where n <= int16 */
+	C_SECON
+	C_LACON /* $n(REG) where int16 < n <= int32 */
+	C_LECON
+	C_DACON /* $n(REG) where int32 < n */
+	C_SBRA
+	C_LBRA
+	C_LBRAPIC
+	C_SAUTO
+	C_LAUTO
+	C_SEXT
+	C_LEXT
+	C_ZOREG // conjecture: either (1) register + zeroed offset, or (2) "R0" implies zero or C_REG
+	C_SOREG // register + signed offset
+	C_LOREG
+	C_FPSCR
+	C_MSR
+	C_XER
+	C_LR
+	C_CTR
+	C_ANY
+	C_GOK
+	C_ADDR
+	C_GOTADDR
+	C_TLS_LE
+	C_TLS_IE
+	C_TEXTSIZE
+
+	C_NCLASS /* must be the last */
+)
+
+const (
+	AADD = obj.ABasePPC64 + obj.A_ARCHSPECIFIC + iota
+	AADDCC
+	AADDV
+	AADDVCC
+	AADDC
+	AADDCCC
+	AADDCV
+	AADDCVCC
+	AADDME
+	AADDMECC
+	AADDMEVCC
+	AADDMEV
+	AADDE
+	AADDECC
+	AADDEVCC
+	AADDEV
+	AADDZE
+	AADDZECC
+	AADDZEVCC
+	AADDZEV
+	AAND
+	AANDCC
+	AANDN
+	AANDNCC
+	ABC
+	ABCL
+	ABEQ
+	ABGE // not LT = G/E/U
+	ABGT
+	ABLE // not GT = L/E/U
+	ABLT
+	ABNE // not EQ = L/G/U
+	ABVC // Unordered-clear
+	ABVS // Unordered-set
+	ACMP
+	ACMPU
+	ACNTLZW
+	ACNTLZWCC
+	ACRAND
+	ACRANDN
+	ACREQV
+	ACRNAND
+	ACRNOR
+	ACROR
+	ACRORN
+	ACRXOR
+	ADIVW
+	ADIVWCC
+	ADIVWVCC
+	ADIVWV
+	ADIVWU
+	ADIVWUCC
+	ADIVWUVCC
+	ADIVWUV
+	AEQV
+	AEQVCC
+	AEXTSB
+	AEXTSBCC
+	AEXTSH
+	AEXTSHCC
+	AFABS
+	AFABSCC
+	AFADD
+	AFADDCC
+	AFADDS
+	AFADDSCC
+	AFCMPO
+	AFCMPU
+	AFCTIW
+	AFCTIWCC
+	AFCTIWZ
+	AFCTIWZCC
+	AFDIV
+	AFDIVCC
+	AFDIVS
+	AFDIVSCC
+	AFMADD
+	AFMADDCC
+	AFMADDS
+	AFMADDSCC
+	AFMOVD
+	AFMOVDCC
+	AFMOVDU
+	AFMOVS
+	AFMOVSU
+	AFMOVSX
+	AFMOVSZ
+	AFMSUB
+	AFMSUBCC
+	AFMSUBS
+	AFMSUBSCC
+	AFMUL
+	AFMULCC
+	AFMULS
+	AFMULSCC
+	AFNABS
+	AFNABSCC
+	AFNEG
+	AFNEGCC
+	AFNMADD
+	AFNMADDCC
+	AFNMADDS
+	AFNMADDSCC
+	AFNMSUB
+	AFNMSUBCC
+	AFNMSUBS
+	AFNMSUBSCC
+	AFRSP
+	AFRSPCC
+	AFSUB
+	AFSUBCC
+	AFSUBS
+	AFSUBSCC
+	AISEL
+	AMOVMW
+	ALBAR
+	ALSW
+	ALWAR
+	ALWSYNC
+	AMOVDBR
+	AMOVWBR
+	AMOVB
+	AMOVBU
+	AMOVBZ
+	AMOVBZU
+	AMOVH
+	AMOVHBR
+	AMOVHU
+	AMOVHZ
+	AMOVHZU
+	AMOVW
+	AMOVWU
+	AMOVFL
+	AMOVCRFS
+	AMTFSB0
+	AMTFSB0CC
+	AMTFSB1
+	AMTFSB1CC
+	AMULHW
+	AMULHWCC
+	AMULHWU
+	AMULHWUCC
+	AMULLW
+	AMULLWCC
+	AMULLWVCC
+	AMULLWV
+	ANAND
+	ANANDCC
+	ANEG
+	ANEGCC
+	ANEGVCC
+	ANEGV
+	ANOR
+	ANORCC
+	AOR
+	AORCC
+	AORN
+	AORNCC
+	AREM
+	AREMCC
+	AREMV
+	AREMVCC
+	AREMU
+	AREMUCC
+	AREMUV
+	AREMUVCC
+	ARFI
+	ARLWMI
+	ARLWMICC
+	ARLWNM
+	ARLWNMCC
+	ASLW
+	ASLWCC
+	ASRW
+	ASRAW
+	ASRAWCC
+	ASRWCC
+	ASTBCCC
+	ASTSW
+	ASTWCCC
+	ASUB
+	ASUBCC
+	ASUBVCC
+	ASUBC
+	ASUBCCC
+	ASUBCV
+	ASUBCVCC
+	ASUBME
+	ASUBMECC
+	ASUBMEVCC
+	ASUBMEV
+	ASUBV
+	ASUBE
+	ASUBECC
+	ASUBEV
+	ASUBEVCC
+	ASUBZE
+	ASUBZECC
+	ASUBZEVCC
+	ASUBZEV
+	ASYNC
+	AXOR
+	AXORCC
+
+	ADCBF
+	ADCBI
+	ADCBST
+	ADCBT
+	ADCBTST
+	ADCBZ
+	AECIWX
+	AECOWX
+	AEIEIO
+	AICBI
+	AISYNC
+	APTESYNC
+	ATLBIE
+	ATLBIEL
+	ATLBSYNC
+	ATW
+
+	ASYSCALL
+	AWORD
+
+	ARFCI
+
+	/* optional on 32-bit */
+	AFRES
+	AFRESCC
+	AFRIM
+	AFRIMCC
+	AFRIP
+	AFRIPCC
+	AFRIZ
+	AFRIZCC
+	AFRSQRTE
+	AFRSQRTECC
+	AFSEL
+	AFSELCC
+	AFSQRT
+	AFSQRTCC
+	AFSQRTS
+	AFSQRTSCC
+
+	/* 64-bit */
+
+	ACNTLZD
+	ACNTLZDCC
+	ACMPW /* CMP with L=0 */
+	ACMPWU
+	ADIVD
+	ADIVDCC
+	ADIVDE
+	ADIVDECC
+	ADIVDEU
+	ADIVDEUCC
+	ADIVDVCC
+	ADIVDV
+	ADIVDU
+	ADIVDUCC
+	ADIVDUVCC
+	ADIVDUV
+	AEXTSW
+	AEXTSWCC
+	/* AFCFIW; AFCFIWCC */
+	AFCFID
+	AFCFIDCC
+	AFCFIDU
+	AFCFIDUCC
+	AFCTID
+	AFCTIDCC
+	AFCTIDZ
+	AFCTIDZCC
+	ALDAR
+	AMOVD
+	AMOVDU
+	AMOVWZ
+	AMOVWZU
+	AMULHD
+	AMULHDCC
+	AMULHDU
+	AMULHDUCC
+	AMULLD
+	AMULLDCC
+	AMULLDVCC
+	AMULLDV
+	ARFID
+	ARLDMI
+	ARLDMICC
+	ARLDIMI
+	ARLDIMICC
+	ARLDC
+	ARLDCCC
+	ARLDCR
+	ARLDCRCC
+	ARLDICR
+	ARLDICRCC
+	ARLDCL
+	ARLDCLCC
+	ARLDICL
+	ARLDICLCC
+	ASLBIA
+	ASLBIE
+	ASLBMFEE
+	ASLBMFEV
+	ASLBMTE
+	ASLD
+	ASLDCC
+	ASRD
+	ASRAD
+	ASRADCC
+	ASRDCC
+	ASTDCCC
+	ATD
+
+	/* 64-bit pseudo operation */
+	ADWORD
+	AREMD
+	AREMDCC
+	AREMDV
+	AREMDVCC
+	AREMDU
+	AREMDUCC
+	AREMDUV
+	AREMDUVCC
+
+	/* more 64-bit operations */
+	AHRFID
+
+	/* Vector */
+	ALV
+	ALVEBX
+	ALVEHX
+	ALVEWX
+	ALVX
+	ALVXL
+	ALVSL
+	ALVSR
+	ASTV
+	ASTVEBX
+	ASTVEHX
+	ASTVEWX
+	ASTVX
+	ASTVXL
+	AVAND
+	AVANDL
+	AVANDC
+	AVNAND
+	AVOR
+	AVORL
+	AVORC
+	AVNOR
+	AVXOR
+	AVEQV
+	AVADDUM
+	AVADDUBM
+	AVADDUHM
+	AVADDUWM
+	AVADDUDM
+	AVADDUQM
+	AVADDCU
+	AVADDCUQ
+	AVADDCUW
+	AVADDUS
+	AVADDUBS
+	AVADDUHS
+	AVADDUWS
+	AVADDSS
+	AVADDSBS
+	AVADDSHS
+	AVADDSWS
+	AVADDE
+	AVADDEUQM
+	AVADDECUQ
+	AVSUBUM
+	AVSUBUBM
+	AVSUBUHM
+	AVSUBUWM
+	AVSUBUDM
+	AVSUBUQM
+	AVSUBCU
+	AVSUBCUQ
+	AVSUBCUW
+	AVSUBUS
+	AVSUBUBS
+	AVSUBUHS
+	AVSUBUWS
+	AVSUBSS
+	AVSUBSBS
+	AVSUBSHS
+	AVSUBSWS
+	AVSUBE
+	AVSUBEUQM
+	AVSUBECUQ
+	AVR
+	AVRLB
+	AVRLH
+	AVRLW
+	AVRLD
+	AVS
+	AVSLB
+	AVSLH
+	AVSLW
+	AVSL
+	AVSLO
+	AVSRB
+	AVSRH
+	AVSRW
+	AVSR
+	AVSRO
+	AVSLD
+	AVSRD
+	AVSA
+	AVSRAB
+	AVSRAH
+	AVSRAW
+	AVSRAD
+	AVSOI
+	AVSLDOI
+	AVCLZ
+	AVCLZB
+	AVCLZH
+	AVCLZW
+	AVCLZD
+	AVPOPCNT
+	AVPOPCNTB
+	AVPOPCNTH
+	AVPOPCNTW
+	AVPOPCNTD
+	AVCMPEQ
+	AVCMPEQUB
+	AVCMPEQUBCC
+	AVCMPEQUH
+	AVCMPEQUHCC
+	AVCMPEQUW
+	AVCMPEQUWCC
+	AVCMPEQUD
+	AVCMPEQUDCC
+	AVCMPGT
+	AVCMPGTUB
+	AVCMPGTUBCC
+	AVCMPGTUH
+	AVCMPGTUHCC
+	AVCMPGTUW
+	AVCMPGTUWCC
+	AVCMPGTUD
+	AVCMPGTUDCC
+	AVCMPGTSB
+	AVCMPGTSBCC
+	AVCMPGTSH
+	AVCMPGTSHCC
+	AVCMPGTSW
+	AVCMPGTSWCC
+	AVCMPGTSD
+	AVCMPGTSDCC
+	AVPERM
+	AVSEL
+	AVSPLT
+	AVSPLTB
+	AVSPLTH
+	AVSPLTW
+	AVSPLTI
+	AVSPLTISB
+	AVSPLTISH
+	AVSPLTISW
+	AVCIPH
+	AVCIPHER
+	AVCIPHERLAST
+	AVNCIPH
+	AVNCIPHER
+	AVNCIPHERLAST
+	AVSBOX
+	AVSHASIGMA
+	AVSHASIGMAW
+	AVSHASIGMAD
+
+	/* VSX */
+	ALXV
+	ALXVD2X
+	ALXVDSX
+	ALXVW4X
+	ASTXV
+	ASTXVD2X
+	ASTXVW4X
+	ALXS
+	ALXSDX
+	ASTXS
+	ASTXSDX
+	ALXSI
+	ALXSIWAX
+	ALXSIWZX
+	ASTXSI
+	ASTXSIWX
+	AMFVSR
+	AMFVSRD
+	AMFVSRWZ
+	AMTVSR
+	AMTVSRD
+	AMTVSRWA
+	AMTVSRWZ
+	AXXLAND
+	AXXLANDQ
+	AXXLANDC
+	AXXLEQV
+	AXXLNAND
+	AXXLOR
+	AXXLORC
+	AXXLNOR
+	AXXLORQ
+	AXXLXOR
+	AXXSEL
+	AXXMRG
+	AXXMRGHW
+	AXXMRGLW
+	AXXSPLT
+	AXXSPLTW
+	AXXPERM
+	AXXPERMDI
+	AXXSI
+	AXXSLDWI
+	AXSCV
+	AXSCVDPSP
+	AXSCVSPDP
+	AXSCVDPSPN
+	AXSCVSPDPN
+	AXVCV
+	AXVCVDPSP
+	AXVCVSPDP
+	AXSCVX
+	AXSCVDPSXDS
+	AXSCVDPSXWS
+	AXSCVDPUXDS
+	AXSCVDPUXWS
+	AXSCVXP
+	AXSCVSXDDP
+	AXSCVUXDDP
+	AXSCVSXDSP
+	AXSCVUXDSP
+	AXVCVX
+	AXVCVDPSXDS
+	AXVCVDPSXWS
+	AXVCVDPUXDS
+	AXVCVDPUXWS
+	AXVCVSPSXDS
+	AXVCVSPSXWS
+	AXVCVSPUXDS
+	AXVCVSPUXWS
+	AXVCVXP
+	AXVCVSXDDP
+	AXVCVSXWDP
+	AXVCVUXDDP
+	AXVCVUXWDP
+	AXVCVSXDSP
+	AXVCVSXWSP
+	AXVCVUXDSP
+	AXVCVUXWSP
+
+	ALAST
+
+	// aliases
+	ABR = obj.AJMP
+	ABL = obj.ACALL
+)

vendor/github.com/google/gops/internal/obj/ppc64/anames.go

@@ -0,0 +1,549 @@
+// Generated by stringer -i a.out.go -o anames.go -p ppc64
+// Do not edit.
+
+package ppc64
+
+import "github.com/google/gops/internal/obj"
+
+var Anames = []string{
+	obj.A_ARCHSPECIFIC: "ADD",
+	"ADDCC",
+	"ADDV",
+	"ADDVCC",
+	"ADDC",
+	"ADDCCC",
+	"ADDCV",
+	"ADDCVCC",
+	"ADDME",
+	"ADDMECC",
+	"ADDMEVCC",
+	"ADDMEV",
+	"ADDE",
+	"ADDECC",
+	"ADDEVCC",
+	"ADDEV",
+	"ADDZE",
+	"ADDZECC",
+	"ADDZEVCC",
+	"ADDZEV",
+	"AND",
+	"ANDCC",
+	"ANDN",
+	"ANDNCC",
+	"BC",
+	"BCL",
+	"BEQ",
+	"BGE",
+	"BGT",
+	"BLE",
+	"BLT",
+	"BNE",
+	"BVC",
+	"BVS",
+	"CMP",
+	"CMPU",
+	"CNTLZW",
+	"CNTLZWCC",
+	"CRAND",
+	"CRANDN",
+	"CREQV",
+	"CRNAND",
+	"CRNOR",
+	"CROR",
+	"CRORN",
+	"CRXOR",
+	"DIVW",
+	"DIVWCC",
+	"DIVWVCC",
+	"DIVWV",
+	"DIVWU",
+	"DIVWUCC",
+	"DIVWUVCC",
+	"DIVWUV",
+	"EQV",
+	"EQVCC",
+	"EXTSB",
+	"EXTSBCC",
+	"EXTSH",
+	"EXTSHCC",
+	"FABS",
+	"FABSCC",
+	"FADD",
+	"FADDCC",
+	"FADDS",
+	"FADDSCC",
+	"FCMPO",
+	"FCMPU",
+	"FCTIW",
+	"FCTIWCC",
+	"FCTIWZ",
+	"FCTIWZCC",
+	"FDIV",
+	"FDIVCC",
+	"FDIVS",
+	"FDIVSCC",
+	"FMADD",
+	"FMADDCC",
+	"FMADDS",
+	"FMADDSCC",
+	"FMOVD",
+	"FMOVDCC",
+	"FMOVDU",
+	"FMOVS",
+	"FMOVSU",
+	"FMOVSX",
+	"FMOVSZ",
+	"FMSUB",
+	"FMSUBCC",
+	"FMSUBS",
+	"FMSUBSCC",
+	"FMUL",
+	"FMULCC",
+	"FMULS",
+	"FMULSCC",
+	"FNABS",
+	"FNABSCC",
+	"FNEG",
+	"FNEGCC",
+	"FNMADD",
+	"FNMADDCC",
+	"FNMADDS",
+	"FNMADDSCC",
+	"FNMSUB",
+	"FNMSUBCC",
+	"FNMSUBS",
+	"FNMSUBSCC",
+	"FRSP",
+	"FRSPCC",
+	"FSUB",
+	"FSUBCC",
+	"FSUBS",
+	"FSUBSCC",
+	"ISEL",
+	"MOVMW",
+	"LBAR",
+	"LSW",
+	"LWAR",
+	"LWSYNC",
+	"MOVDBR",
+	"MOVWBR",
+	"MOVB",
+	"MOVBU",
+	"MOVBZ",
+	"MOVBZU",
+	"MOVH",
+	"MOVHBR",
+	"MOVHU",
+	"MOVHZ",
+	"MOVHZU",
+	"MOVW",
+	"MOVWU",
+	"MOVFL",
+	"MOVCRFS",
+	"MTFSB0",
+	"MTFSB0CC",
+	"MTFSB1",
+	"MTFSB1CC",
+	"MULHW",
+	"MULHWCC",
+	"MULHWU",
+	"MULHWUCC",
+	"MULLW",
+	"MULLWCC",
+	"MULLWVCC",
+	"MULLWV",
+	"NAND",
+	"NANDCC",
+	"NEG",
+	"NEGCC",
+	"NEGVCC",
+	"NEGV",
+	"NOR",
+	"NORCC",
+	"OR",
+	"ORCC",
+	"ORN",
+	"ORNCC",
+	"REM",
+	"REMCC",
+	"REMV",
+	"REMVCC",
+	"REMU",
+	"REMUCC",
+	"REMUV",
+	"REMUVCC",
+	"RFI",
+	"RLWMI",
+	"RLWMICC",
+	"RLWNM",
+	"RLWNMCC",
+	"SLW",
+	"SLWCC",
+	"SRW",
+	"SRAW",
+	"SRAWCC",
+	"SRWCC",
+	"STBCCC",
+	"STSW",
+	"STWCCC",
+	"SUB",
+	"SUBCC",
+	"SUBVCC",
+	"SUBC",
+	"SUBCCC",
+	"SUBCV",
+	"SUBCVCC",
+	"SUBME",
+	"SUBMECC",
+	"SUBMEVCC",
+	"SUBMEV",
+	"SUBV",
+	"SUBE",
+	"SUBECC",
+	"SUBEV",
+	"SUBEVCC",
+	"SUBZE",
+	"SUBZECC",
+	"SUBZEVCC",
+	"SUBZEV",
+	"SYNC",
+	"XOR",
+	"XORCC",
+	"DCBF",
+	"DCBI",
+	"DCBST",
+	"DCBT",
+	"DCBTST",
+	"DCBZ",
+	"ECIWX",
+	"ECOWX",
+	"EIEIO",
+	"ICBI",
+	"ISYNC",
+	"PTESYNC",
+	"TLBIE",
+	"TLBIEL",
+	"TLBSYNC",
+	"TW",
+	"SYSCALL",
+	"WORD",
+	"RFCI",
+	"FRES",
+	"FRESCC",
+	"FRIM",
+	"FRIMCC",
+	"FRIP",
+	"FRIPCC",
+	"FRIZ",
+	"FRIZCC",
+	"FRSQRTE",
+	"FRSQRTECC",
+	"FSEL",
+	"FSELCC",
+	"FSQRT",
+	"FSQRTCC",
+	"FSQRTS",
+	"FSQRTSCC",
+	"CNTLZD",
+	"CNTLZDCC",
+	"CMPW",
+	"CMPWU",
+	"DIVD",
+	"DIVDCC",
+	"DIVDE",
+	"DIVDECC",
+	"DIVDEU",
+	"DIVDEUCC",
+	"DIVDVCC",
+	"DIVDV",
+	"DIVDU",
+	"DIVDUCC",
+	"DIVDUVCC",
+	"DIVDUV",
+	"EXTSW",
+	"EXTSWCC",
+	"FCFID",
+	"FCFIDCC",
+	"FCFIDU",
+	"FCFIDUCC",
+	"FCTID",
+	"FCTIDCC",
+	"FCTIDZ",
+	"FCTIDZCC",
+	"LDAR",
+	"MOVD",
+	"MOVDU",
+	"MOVWZ",
+	"MOVWZU",
+	"MULHD",
+	"MULHDCC",
+	"MULHDU",
+	"MULHDUCC",
+	"MULLD",
+	"MULLDCC",
+	"MULLDVCC",
+	"MULLDV",
+	"RFID",
+	"RLDMI",
+	"RLDMICC",
+	"RLDIMI",
+	"RLDIMICC",
+	"RLDC",
+	"RLDCCC",
+	"RLDCR",
+	"RLDCRCC",
+	"RLDICR",
+	"RLDICRCC",
+	"RLDCL",
+	"RLDCLCC",
+	"RLDICL",
+	"RLDICLCC",
+	"SLBIA",
+	"SLBIE",
+	"SLBMFEE",
+	"SLBMFEV",
+	"SLBMTE",
+	"SLD",
+	"SLDCC",
+	"SRD",
+	"SRAD",
+	"SRADCC",
+	"SRDCC",
+	"STDCCC",
+	"TD",
+	"DWORD",
+	"REMD",
+	"REMDCC",
+	"REMDV",
+	"REMDVCC",
+	"REMDU",
+	"REMDUCC",
+	"REMDUV",
+	"REMDUVCC",
+	"HRFID",
+	"LV",
+	"LVEBX",
+	"LVEHX",
+	"LVEWX",
+	"LVX",
+	"LVXL",
+	"LVSL",
+	"LVSR",
+	"STV",
+	"STVEBX",
+	"STVEHX",
+	"STVEWX",
+	"STVX",
+	"STVXL",
+	"VAND",
+	"VANDL",
+	"VANDC",
+	"VNAND",
+	"VOR",
+	"VORL",
+	"VORC",
+	"VNOR",
+	"VXOR",
+	"VEQV",
+	"VADDUM",
+	"VADDUBM",
+	"VADDUHM",
+	"VADDUWM",
+	"VADDUDM",
+	"VADDUQM",
+	"VADDCU",
+	"VADDCUQ",
+	"VADDCUW",
+	"VADDUS",
+	"VADDUBS",
+	"VADDUHS",
+	"VADDUWS",
+	"VADDSS",
+	"VADDSBS",
+	"VADDSHS",
+	"VADDSWS",
+	"VADDE",
+	"VADDEUQM",
+	"VADDECUQ",
+	"VSUBUM",
+	"VSUBUBM",
+	"VSUBUHM",
+	"VSUBUWM",
+	"VSUBUDM",
+	"VSUBUQM",
+	"VSUBCU",
+	"VSUBCUQ",
+	"VSUBCUW",
+	"VSUBUS",
+	"VSUBUBS",
+	"VSUBUHS",
+	"VSUBUWS",
+	"VSUBSS",
+	"VSUBSBS",
+	"VSUBSHS",
+	"VSUBSWS",
+	"VSUBE",
+	"VSUBEUQM",
+	"VSUBECUQ",
+	"VR",
+	"VRLB",
+	"VRLH",
+	"VRLW",
+	"VRLD",
+	"VS",
+	"VSLB",
+	"VSLH",
+	"VSLW",
+	"VSL",
+	"VSLO",
+	"VSRB",
+	"VSRH",
+	"VSRW",
+	"VSR",
+	"VSRO",
+	"VSLD",
+	"VSRD",
+	"VSA",
+	"VSRAB",
+	"VSRAH",
+	"VSRAW",
+	"VSRAD",
+	"VSOI",
+	"VSLDOI",
+	"VCLZ",
+	"VCLZB",
+	"VCLZH",
+	"VCLZW",
+	"VCLZD",
+	"VPOPCNT",
+	"VPOPCNTB",
+	"VPOPCNTH",
+	"VPOPCNTW",
+	"VPOPCNTD",
+	"VCMPEQ",
+	"VCMPEQUB",
+	"VCMPEQUBCC",
+	"VCMPEQUH",
+	"VCMPEQUHCC",
+	"VCMPEQUW",
+	"VCMPEQUWCC",
+	"VCMPEQUD",
+	"VCMPEQUDCC",
+	"VCMPGT",
+	"VCMPGTUB",
+	"VCMPGTUBCC",
+	"VCMPGTUH",
+	"VCMPGTUHCC",
+	"VCMPGTUW",
+	"VCMPGTUWCC",
+	"VCMPGTUD",
+	"VCMPGTUDCC",
+	"VCMPGTSB",
+	"VCMPGTSBCC",
+	"VCMPGTSH",
+	"VCMPGTSHCC",
+	"VCMPGTSW",
+	"VCMPGTSWCC",
+	"VCMPGTSD",
+	"VCMPGTSDCC",
+	"VPERM",
+	"VSEL",
+	"VSPLT",
+	"VSPLTB",
+	"VSPLTH",
+	"VSPLTW",
+	"VSPLTI",
+	"VSPLTISB",
+	"VSPLTISH",
+	"VSPLTISW",
+	"VCIPH",
+	"VCIPHER",
+	"VCIPHERLAST",
+	"VNCIPH",
+	"VNCIPHER",
+	"VNCIPHERLAST",
+	"VSBOX",
+	"VSHASIGMA",
+	"VSHASIGMAW",
+	"VSHASIGMAD",
+	"LXV",
+	"LXVD2X",
+	"LXVDSX",
+	"LXVW4X",
+	"STXV",
+	"STXVD2X",
+	"STXVW4X",
+	"LXS",
+	"LXSDX",
+	"STXS",
+	"STXSDX",
+	"LXSI",
+	"LXSIWAX",
+	"LXSIWZX",
+	"STXSI",
+	"STXSIWX",
+	"MFVSR",
+	"MFVSRD",
+	"MFVSRWZ",
+	"MTVSR",
+	"MTVSRD",
+	"MTVSRWA",
+	"MTVSRWZ",
+	"XXLAND",
+	"XXLANDQ",
+	"XXLANDC",
+	"XXLEQV",
+	"XXLNAND",
+	"XXLOR",
+	"XXLORC",
+	"XXLNOR",
+	"XXLORQ",
+	"XXLXOR",
+	"XXSEL",
+	"XXMRG",
+	"XXMRGHW",
+	"XXMRGLW",
+	"XXSPLT",
+	"XXSPLTW",
+	"XXPERM",
+	"XXPERMDI",
+	"XXSI",
+	"XXSLDWI",
+	"XSCV",
+	"XSCVDPSP",
+	"XSCVSPDP",
+	"XSCVDPSPN",
+	"XSCVSPDPN",
+	"XVCV",
+	"XVCVDPSP",
+	"XVCVSPDP",
+	"XSCVX",
+	"XSCVDPSXDS",
+	"XSCVDPSXWS",
+	"XSCVDPUXDS",
+	"XSCVDPUXWS",
+	"XSCVXP",
+	"XSCVSXDDP",
+	"XSCVUXDDP",
+	"XSCVSXDSP",
+	"XSCVUXDSP",
+	"XVCVX",
+	"XVCVDPSXDS",
+	"XVCVDPSXWS",
+	"XVCVDPUXDS",
+	"XVCVDPUXWS",
+	"XVCVSPSXDS",
+	"XVCVSPSXWS",
+	"XVCVSPUXDS",
+	"XVCVSPUXWS",
+	"XVCVXP",
+	"XVCVSXDDP",
+	"XVCVSXWDP",
+	"XVCVUXDDP",
+	"XVCVUXWDP",
+	"XVCVSXDSP",
+	"XVCVSXWSP",
+	"XVCVUXDSP",
+	"XVCVUXWSP",
+	"LAST",
+}

vendor/github.com/google/gops/internal/obj/ppc64/anames9.go

@@ -0,0 +1,49 @@
+// Copyright 2015 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package ppc64
+
+var cnames9 = []string{
+	"NONE",
+	"REG",
+	"FREG",
+	"VREG",
+	"VSREG",
+	"CREG",
+	"SPR",
+	"ZCON",
+	"SCON",
+	"UCON",
+	"ADDCON",
+	"ANDCON",
+	"LCON",
+	"DCON",
+	"SACON",
+	"SECON",
+	"LACON",
+	"LECON",
+	"DACON",
+	"SBRA",
+	"LBRA",
+	"SAUTO",
+	"LAUTO",
+	"SEXT",
+	"LEXT",
+	"ZOREG",
+	"SOREG",
+	"LOREG",
+	"FPSCR",
+	"MSR",
+	"XER",
+	"LR",
+	"CTR",
+	"ANY",
+	"GOK",
+	"ADDR",
+	"GOTADDR",
+	"TLS_LE",
+	"TLS_IE",
+	"TEXTSIZE",
+	"NCLASS",
+}

vendor/github.com/google/gops/internal/obj/ppc64/list9.go

@@ -0,0 +1,105 @@
+// cmd/9l/list.c from Vita Nuova.
+//
+//	Copyright © 1994-1999 Lucent Technologies Inc.  All rights reserved.
+//	Portions Copyright © 1995-1997 C H Forsyth (forsyth@terzarima.net)
+//	Portions Copyright © 1997-1999 Vita Nuova Limited
+//	Portions Copyright © 2000-2008 Vita Nuova Holdings Limited (www.vitanuova.com)
+//	Portions Copyright © 2004,2006 Bruce Ellis
+//	Portions Copyright © 2005-2007 C H Forsyth (forsyth@terzarima.net)
+//	Revisions Copyright © 2000-2008 Lucent Technologies Inc. and others
+//	Portions Copyright © 2009 The Go Authors. All rights reserved.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+package ppc64
+
+import (
+	"fmt"
+
+	"github.com/google/gops/internal/obj"
+)
+
+func init() {
+	obj.RegisterRegister(obj.RBasePPC64, REG_DCR0+1024, Rconv)
+	obj.RegisterOpcode(obj.ABasePPC64, Anames)
+}
+
+func Rconv(r int) string {
+	if r == 0 {
+		return "NONE"
+	}
+	if r == REGG {
+		// Special case.
+		return "g"
+	}
+	if REG_R0 <= r && r <= REG_R31 {
+		return fmt.Sprintf("R%d", r-REG_R0)
+	}
+	if REG_F0 <= r && r <= REG_F31 {
+		return fmt.Sprintf("F%d", r-REG_F0)
+	}
+	if REG_V0 <= r && r <= REG_V31 {
+		return fmt.Sprintf("V%d", r-REG_V0)
+	}
+	if REG_VS0 <= r && r <= REG_VS63 {
+		return fmt.Sprintf("VS%d", r-REG_VS0)
+	}
+	if REG_CR0 <= r && r <= REG_CR7 {
+		return fmt.Sprintf("CR%d", r-REG_CR0)
+	}
+	if r == REG_CR {
+		return "CR"
+	}
+	if REG_SPR0 <= r && r <= REG_SPR0+1023 {
+		switch r {
+		case REG_XER:
+			return "XER"
+
+		case REG_LR:
+			return "LR"
+
+		case REG_CTR:
+			return "CTR"
+		}
+
+		return fmt.Sprintf("SPR(%d)", r-REG_SPR0)
+	}
+
+	if REG_DCR0 <= r && r <= REG_DCR0+1023 {
+		return fmt.Sprintf("DCR(%d)", r-REG_DCR0)
+	}
+	if r == REG_FPSCR {
+		return "FPSCR"
+	}
+	if r == REG_MSR {
+		return "MSR"
+	}
+
+	return fmt.Sprintf("Rgok(%d)", r-obj.RBasePPC64)
+}
+
+func DRconv(a int) string {
+	s := "C_??"
+	if a >= C_NONE && a <= C_NCLASS {
+		s = cnames9[a]
+	}
+	var fp string
+	fp += s
+	return fp
+}

vendor/github.com/google/gops/internal/obj/reloctype_string.go

@@ -0,0 +1,17 @@
+// Code generated by "stringer -type=RelocType"; DO NOT EDIT
+
+package obj
+
+import "fmt"
+
+const _RelocType_name = "R_ADDRR_ADDRPOWERR_ADDRARM64R_ADDRMIPSR_ADDROFFR_SIZER_CALLR_CALLARMR_CALLARM64R_CALLINDR_CALLPOWERR_CALLMIPSR_CONSTR_PCRELR_TLS_LER_TLS_IER_GOTOFFR_PLT0R_PLT1R_PLT2R_USEFIELDR_USETYPER_METHODOFFR_POWER_TOCR_GOTPCRELR_JMPMIPSR_DWARFREFR_ARM64_TLS_LER_ARM64_TLS_IER_ARM64_GOTPCRELR_POWER_TLS_LER_POWER_TLS_IER_POWER_TLSR_ADDRPOWER_DSR_ADDRPOWER_GOTR_ADDRPOWER_PCRELR_ADDRPOWER_TOCRELR_ADDRPOWER_TOCREL_DSR_PCRELDBLR_ADDRMIPSUR_ADDRMIPSTLS"
+
+var _RelocType_index = [...]uint16{0, 6, 17, 28, 38, 47, 53, 59, 68, 79, 88, 99, 109, 116, 123, 131, 139, 147, 153, 159, 165, 175, 184, 195, 206, 216, 225, 235, 249, 263, 279, 293, 307, 318, 332, 347, 364, 382, 403, 413, 424, 437}
+
+func (i RelocType) String() string {
+	i -= 1
+	if i < 0 || i >= RelocType(len(_RelocType_index)-1) {
+		return fmt.Sprintf("RelocType(%d)", i+1)
+	}
+	return _RelocType_name[_RelocType_index[i]:_RelocType_index[i+1]]
+}

vendor/github.com/google/gops/internal/obj/s390x/a.out.go

@@ -0,0 +1,926 @@
+// Based on cmd/internal/obj/ppc64/a.out.go.
+//
+//	Copyright © 1994-1999 Lucent Technologies Inc.  All rights reserved.
+//	Portions Copyright © 1995-1997 C H Forsyth (forsyth@terzarima.net)
+//	Portions Copyright © 1997-1999 Vita Nuova Limited
+//	Portions Copyright © 2000-2008 Vita Nuova Holdings Limited (www.vitanuova.com)
+//	Portions Copyright © 2004,2006 Bruce Ellis
+//	Portions Copyright © 2005-2007 C H Forsyth (forsyth@terzarima.net)
+//	Revisions Copyright © 2000-2008 Lucent Technologies Inc. and others
+//	Portions Copyright © 2009 The Go Authors. All rights reserved.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+package s390x
+
+import "github.com/google/gops/internal/obj"
+
+//go:generate go run ../stringer.go -i $GOFILE -o anames.go -p s390x
+
+const (
+	NSNAME = 8
+	NSYM   = 50
+	NREG   = 16 // number of general purpose registers
+	NFREG  = 16 // number of floating point registers
+)
+
+const (
+	// General purpose registers (GPRs).
+	REG_R0 = obj.RBaseS390X + iota
+	REG_R1
+	REG_R2
+	REG_R3
+	REG_R4
+	REG_R5
+	REG_R6
+	REG_R7
+	REG_R8
+	REG_R9
+	REG_R10
+	REG_R11
+	REG_R12
+	REG_R13
+	REG_R14
+	REG_R15
+
+	// Floating point registers (FPRs).
+	REG_F0
+	REG_F1
+	REG_F2
+	REG_F3
+	REG_F4
+	REG_F5
+	REG_F6
+	REG_F7
+	REG_F8
+	REG_F9
+	REG_F10
+	REG_F11
+	REG_F12
+	REG_F13
+	REG_F14
+	REG_F15
+
+	// Vector registers (VRs) - only available when the vector
+	// facility is installed.
+	// V0-V15 are aliases for F0-F15.
+	// We keep them in a separate space to make printing etc. easier
+	// If the code generator ever emits vector instructions it will
+	// need to take into account the aliasing.
+	REG_V0
+	REG_V1
+	REG_V2
+	REG_V3
+	REG_V4
+	REG_V5
+	REG_V6
+	REG_V7
+	REG_V8
+	REG_V9
+	REG_V10
+	REG_V11
+	REG_V12
+	REG_V13
+	REG_V14
+	REG_V15
+	REG_V16
+	REG_V17
+	REG_V18
+	REG_V19
+	REG_V20
+	REG_V21
+	REG_V22
+	REG_V23
+	REG_V24
+	REG_V25
+	REG_V26
+	REG_V27
+	REG_V28
+	REG_V29
+	REG_V30
+	REG_V31
+
+	// Access registers (ARs).
+	// The thread pointer is typically stored in the register pair
+	// AR0 and AR1.
+	REG_AR0
+	REG_AR1
+	REG_AR2
+	REG_AR3
+	REG_AR4
+	REG_AR5
+	REG_AR6
+	REG_AR7
+	REG_AR8
+	REG_AR9
+	REG_AR10
+	REG_AR11
+	REG_AR12
+	REG_AR13
+	REG_AR14
+	REG_AR15
+
+	REG_RESERVED // end of allocated registers
+
+	REGZERO = REG_R0  // set to zero
+	REGARG  = -1      // -1 disables passing the first argument in register
+	REGRT1  = REG_R3  // used during zeroing of the stack - not reserved
+	REGRT2  = REG_R4  // used during zeroing of the stack - not reserved
+	REGTMP  = REG_R10 // scratch register used in the assembler and linker
+	REGTMP2 = REG_R11 // scratch register used in the assembler and linker
+	REGCTXT = REG_R12 // context for closures
+	REGG    = REG_R13 // G
+	REG_LR  = REG_R14 // link register
+	REGSP   = REG_R15 // stack pointer
+)
+
+const (
+	BIG    = 32768 - 8
+	DISP12 = 4096
+	DISP16 = 65536
+	DISP20 = 1048576
+)
+
+const (
+	// mark flags
+	LABEL   = 1 << 0
+	LEAF    = 1 << 1
+	FLOAT   = 1 << 2
+	BRANCH  = 1 << 3
+	LOAD    = 1 << 4
+	FCMP    = 1 << 5
+	SYNC    = 1 << 6
+	LIST    = 1 << 7
+	FOLL    = 1 << 8
+	NOSCHED = 1 << 9
+)
+
+const ( // comments from func aclass in asmz.go
+	C_NONE     = iota
+	C_REG      // general-purpose register (64-bit)
+	C_FREG     // floating-point register (64-bit)
+	C_VREG     // vector register (128-bit)
+	C_AREG     // access register (32-bit)
+	C_ZCON     // constant == 0
+	C_SCON     // 0 <= constant <= 0x7fff (positive int16)
+	C_UCON     // constant & 0xffff == 0 (int16 or uint16)
+	C_ADDCON   // 0 > constant >= -0x8000 (negative int16)
+	C_ANDCON   // constant <= 0xffff
+	C_LCON     // constant (int32 or uint32)
+	C_DCON     // constant (int64 or uint64)
+	C_SACON    // computed address, 16-bit displacement, possibly SP-relative
+	C_LACON    // computed address, 32-bit displacement, possibly SP-relative
+	C_DACON    // computed address, 64-bit displacment?
+	C_SBRA     // short branch
+	C_LBRA     // long branch
+	C_SAUTO    // short auto
+	C_LAUTO    // long auto
+	C_ZOREG    // heap address, register-based, displacement == 0
+	C_SOREG    // heap address, register-based, int16 displacement
+	C_LOREG    // heap address, register-based, int32 displacement
+	C_TLS_LE   // TLS - local exec model (for executables)
+	C_TLS_IE   // TLS - initial exec model (for shared libraries loaded at program startup)
+	C_GOK      // general address
+	C_ADDR     // relocation for extern or static symbols (loads and stores)
+	C_SYMADDR  // relocation for extern or static symbols (address taking)
+	C_GOTADDR  // GOT slot for a symbol in -dynlink mode
+	C_TEXTSIZE // text size
+	C_ANY
+	C_NCLASS // must be the last
+)
+
+const (
+	// integer arithmetic
+	AADD = obj.ABaseS390X + obj.A_ARCHSPECIFIC + iota
+	AADDC
+	AADDE
+	AADDW
+	ADIVW
+	ADIVWU
+	ADIVD
+	ADIVDU
+	AMODW
+	AMODWU
+	AMODD
+	AMODDU
+	AMULLW
+	AMULLD
+	AMULHD
+	AMULHDU
+	ASUB
+	ASUBC
+	ASUBV
+	ASUBE
+	ASUBW
+	ANEG
+	ANEGW
+
+	// integer moves
+	AMOVWBR
+	AMOVB
+	AMOVBZ
+	AMOVH
+	AMOVHBR
+	AMOVHZ
+	AMOVW
+	AMOVWZ
+	AMOVD
+	AMOVDBR
+
+	// conditional moves
+	AMOVDEQ
+	AMOVDGE
+	AMOVDGT
+	AMOVDLE
+	AMOVDLT
+	AMOVDNE
+
+	// find leftmost one
+	AFLOGR
+
+	// integer bitwise
+	AAND
+	AANDW
+	AOR
+	AORW
+	AXOR
+	AXORW
+	ASLW
+	ASLD
+	ASRW
+	ASRAW
+	ASRD
+	ASRAD
+	ARLL
+	ARLLG
+
+	// floating point
+	AFABS
+	AFADD
+	AFADDS
+	AFCMPO
+	AFCMPU
+	ACEBR
+	AFDIV
+	AFDIVS
+	AFMADD
+	AFMADDS
+	AFMOVD
+	AFMOVS
+	AFMSUB
+	AFMSUBS
+	AFMUL
+	AFMULS
+	AFNABS
+	AFNEG
+	AFNEGS
+	AFNMADD
+	AFNMADDS
+	AFNMSUB
+	AFNMSUBS
+	ALEDBR
+	ALDEBR
+	AFSUB
+	AFSUBS
+	AFSQRT
+	AFSQRTS
+	AFIEBR
+	AFIDBR
+
+	// convert from int32/int64 to float/float64
+	ACEFBRA
+	ACDFBRA
+	ACEGBRA
+	ACDGBRA
+
+	// convert from float/float64 to int32/int64
+	ACFEBRA
+	ACFDBRA
+	ACGEBRA
+	ACGDBRA
+
+	// convert from uint32/uint64 to float/float64
+	ACELFBR
+	ACDLFBR
+	ACELGBR
+	ACDLGBR
+
+	// convert from float/float64 to uint32/uint64
+	ACLFEBR
+	ACLFDBR
+	ACLGEBR
+	ACLGDBR
+
+	// compare
+	ACMP
+	ACMPU
+	ACMPW
+	ACMPWU
+
+	// compare and swap
+	ACS
+	ACSG
+
+	// serialize
+	ASYNC
+
+	// branch
+	ABC
+	ABCL
+	ABEQ
+	ABGE
+	ABGT
+	ABLE
+	ABLT
+	ABLEU
+	ABLTU
+	ABNE
+	ABVC
+	ABVS
+	ASYSCALL
+
+	// compare and branch
+	ACMPBEQ
+	ACMPBGE
+	ACMPBGT
+	ACMPBLE
+	ACMPBLT
+	ACMPBNE
+	ACMPUBEQ
+	ACMPUBGE
+	ACMPUBGT
+	ACMPUBLE
+	ACMPUBLT
+	ACMPUBNE
+
+	// storage-and-storage
+	AMVC
+	ACLC
+	AXC
+	AOC
+	ANC
+
+	// load
+	AEXRL
+	ALARL
+	ALA
+	ALAY
+
+	// interlocked load and op
+	ALAA
+	ALAAG
+	ALAAL
+	ALAALG
+	ALAN
+	ALANG
+	ALAX
+	ALAXG
+	ALAO
+	ALAOG
+
+	// load/store multiple
+	ALMY
+	ALMG
+	ASTMY
+	ASTMG
+
+	// store clock
+	ASTCK
+	ASTCKC
+	ASTCKE
+	ASTCKF
+
+	// macros
+	ACLEAR
+
+	// vector
+	AVA
+	AVAB
+	AVAH
+	AVAF
+	AVAG
+	AVAQ
+	AVACC
+	AVACCB
+	AVACCH
+	AVACCF
+	AVACCG
+	AVACCQ
+	AVAC
+	AVACQ
+	AVACCC
+	AVACCCQ
+	AVN
+	AVNC
+	AVAVG
+	AVAVGB
+	AVAVGH
+	AVAVGF
+	AVAVGG
+	AVAVGL
+	AVAVGLB
+	AVAVGLH
+	AVAVGLF
+	AVAVGLG
+	AVCKSM
+	AVCEQ
+	AVCEQB
+	AVCEQH
+	AVCEQF
+	AVCEQG
+	AVCEQBS
+	AVCEQHS
+	AVCEQFS
+	AVCEQGS
+	AVCH
+	AVCHB
+	AVCHH
+	AVCHF
+	AVCHG
+	AVCHBS
+	AVCHHS
+	AVCHFS
+	AVCHGS
+	AVCHL
+	AVCHLB
+	AVCHLH
+	AVCHLF
+	AVCHLG
+	AVCHLBS
+	AVCHLHS
+	AVCHLFS
+	AVCHLGS
+	AVCLZ
+	AVCLZB
+	AVCLZH
+	AVCLZF
+	AVCLZG
+	AVCTZ
+	AVCTZB
+	AVCTZH
+	AVCTZF
+	AVCTZG
+	AVEC
+	AVECB
+	AVECH
+	AVECF
+	AVECG
+	AVECL
+	AVECLB
+	AVECLH
+	AVECLF
+	AVECLG
+	AVERIM
+	AVERIMB
+	AVERIMH
+	AVERIMF
+	AVERIMG
+	AVERLL
+	AVERLLB
+	AVERLLH
+	AVERLLF
+	AVERLLG
+	AVERLLV
+	AVERLLVB
+	AVERLLVH
+	AVERLLVF
+	AVERLLVG
+	AVESLV
+	AVESLVB
+	AVESLVH
+	AVESLVF
+	AVESLVG
+	AVESL
+	AVESLB
+	AVESLH
+	AVESLF
+	AVESLG
+	AVESRA
+	AVESRAB
+	AVESRAH
+	AVESRAF
+	AVESRAG
+	AVESRAV
+	AVESRAVB
+	AVESRAVH
+	AVESRAVF
+	AVESRAVG
+	AVESRL
+	AVESRLB
+	AVESRLH
+	AVESRLF
+	AVESRLG
+	AVESRLV
+	AVESRLVB
+	AVESRLVH
+	AVESRLVF
+	AVESRLVG
+	AVX
+	AVFAE
+	AVFAEB
+	AVFAEH
+	AVFAEF
+	AVFAEBS
+	AVFAEHS
+	AVFAEFS
+	AVFAEZB
+	AVFAEZH
+	AVFAEZF
+	AVFAEZBS
+	AVFAEZHS
+	AVFAEZFS
+	AVFEE
+	AVFEEB
+	AVFEEH
+	AVFEEF
+	AVFEEBS
+	AVFEEHS
+	AVFEEFS
+	AVFEEZB
+	AVFEEZH
+	AVFEEZF
+	AVFEEZBS
+	AVFEEZHS
+	AVFEEZFS
+	AVFENE
+	AVFENEB
+	AVFENEH
+	AVFENEF
+	AVFENEBS
+	AVFENEHS
+	AVFENEFS
+	AVFENEZB
+	AVFENEZH
+	AVFENEZF
+	AVFENEZBS
+	AVFENEZHS
+	AVFENEZFS
+	AVFA
+	AVFADB
+	AWFADB
+	AWFK
+	AWFKDB
+	AVFCE
+	AVFCEDB
+	AVFCEDBS
+	AWFCEDB
+	AWFCEDBS
+	AVFCH
+	AVFCHDB
+	AVFCHDBS
+	AWFCHDB
+	AWFCHDBS
+	AVFCHE
+	AVFCHEDB
+	AVFCHEDBS
+	AWFCHEDB
+	AWFCHEDBS
+	AWFC
+	AWFCDB
+	AVCDG
+	AVCDGB
+	AWCDGB
+	AVCDLG
+	AVCDLGB
+	AWCDLGB
+	AVCGD
+	AVCGDB
+	AWCGDB
+	AVCLGD
+	AVCLGDB
+	AWCLGDB
+	AVFD
+	AVFDDB
+	AWFDDB
+	AVLDE
+	AVLDEB
+	AWLDEB
+	AVLED
+	AVLEDB
+	AWLEDB
+	AVFM
+	AVFMDB
+	AWFMDB
+	AVFMA
+	AVFMADB
+	AWFMADB
+	AVFMS
+	AVFMSDB
+	AWFMSDB
+	AVFPSO
+	AVFPSODB
+	AWFPSODB
+	AVFLCDB
+	AWFLCDB
+	AVFLNDB
+	AWFLNDB
+	AVFLPDB
+	AWFLPDB
+	AVFSQ
+	AVFSQDB
+	AWFSQDB
+	AVFS
+	AVFSDB
+	AWFSDB
+	AVFTCI
+	AVFTCIDB
+	AWFTCIDB
+	AVGFM
+	AVGFMB
+	AVGFMH
+	AVGFMF
+	AVGFMG
+	AVGFMA
+	AVGFMAB
+	AVGFMAH
+	AVGFMAF
+	AVGFMAG
+	AVGEF
+	AVGEG
+	AVGBM
+	AVZERO
+	AVONE
+	AVGM
+	AVGMB
+	AVGMH
+	AVGMF
+	AVGMG
+	AVISTR
+	AVISTRB
+	AVISTRH
+	AVISTRF
+	AVISTRBS
+	AVISTRHS
+	AVISTRFS
+	AVL
+	AVLR
+	AVLREP
+	AVLREPB
+	AVLREPH
+	AVLREPF
+	AVLREPG
+	AVLC
+	AVLCB
+	AVLCH
+	AVLCF
+	AVLCG
+	AVLEH
+	AVLEF
+	AVLEG
+	AVLEB
+	AVLEIH
+	AVLEIF
+	AVLEIG
+	AVLEIB
+	AVFI
+	AVFIDB
+	AWFIDB
+	AVLGV
+	AVLGVB
+	AVLGVH
+	AVLGVF
+	AVLGVG
+	AVLLEZ
+	AVLLEZB
+	AVLLEZH
+	AVLLEZF
+	AVLLEZG
+	AVLM
+	AVLP
+	AVLPB
+	AVLPH
+	AVLPF
+	AVLPG
+	AVLBB
+	AVLVG
+	AVLVGB
+	AVLVGH
+	AVLVGF
+	AVLVGG
+	AVLVGP
+	AVLL
+	AVMX
+	AVMXB
+	AVMXH
+	AVMXF
+	AVMXG
+	AVMXL
+	AVMXLB
+	AVMXLH
+	AVMXLF
+	AVMXLG
+	AVMRH
+	AVMRHB
+	AVMRHH
+	AVMRHF
+	AVMRHG
+	AVMRL
+	AVMRLB
+	AVMRLH
+	AVMRLF
+	AVMRLG
+	AVMN
+	AVMNB
+	AVMNH
+	AVMNF
+	AVMNG
+	AVMNL
+	AVMNLB
+	AVMNLH
+	AVMNLF
+	AVMNLG
+	AVMAE
+	AVMAEB
+	AVMAEH
+	AVMAEF
+	AVMAH
+	AVMAHB
+	AVMAHH
+	AVMAHF
+	AVMALE
+	AVMALEB
+	AVMALEH
+	AVMALEF
+	AVMALH
+	AVMALHB
+	AVMALHH
+	AVMALHF
+	AVMALO
+	AVMALOB
+	AVMALOH
+	AVMALOF
+	AVMAL
+	AVMALB
+	AVMALHW
+	AVMALF
+	AVMAO
+	AVMAOB
+	AVMAOH
+	AVMAOF
+	AVME
+	AVMEB
+	AVMEH
+	AVMEF
+	AVMH
+	AVMHB
+	AVMHH
+	AVMHF
+	AVMLE
+	AVMLEB
+	AVMLEH
+	AVMLEF
+	AVMLH
+	AVMLHB
+	AVMLHH
+	AVMLHF
+	AVMLO
+	AVMLOB
+	AVMLOH
+	AVMLOF
+	AVML
+	AVMLB
+	AVMLHW
+	AVMLF
+	AVMO
+	AVMOB
+	AVMOH
+	AVMOF
+	AVNO
+	AVNOT
+	AVO
+	AVPK
+	AVPKH
+	AVPKF
+	AVPKG
+	AVPKLS
+	AVPKLSH
+	AVPKLSF
+	AVPKLSG
+	AVPKLSHS
+	AVPKLSFS
+	AVPKLSGS
+	AVPKS
+	AVPKSH
+	AVPKSF
+	AVPKSG
+	AVPKSHS
+	AVPKSFS
+	AVPKSGS
+	AVPERM
+	AVPDI
+	AVPOPCT
+	AVREP
+	AVREPB
+	AVREPH
+	AVREPF
+	AVREPG
+	AVREPI
+	AVREPIB
+	AVREPIH
+	AVREPIF
+	AVREPIG
+	AVSCEF
+	AVSCEG
+	AVSEL
+	AVSL
+	AVSLB
+	AVSLDB
+	AVSRA
+	AVSRAB
+	AVSRL
+	AVSRLB
+	AVSEG
+	AVSEGB
+	AVSEGH
+	AVSEGF
+	AVST
+	AVSTEH
+	AVSTEF
+	AVSTEG
+	AVSTEB
+	AVSTM
+	AVSTL
+	AVSTRC
+	AVSTRCB
+	AVSTRCH
+	AVSTRCF
+	AVSTRCBS
+	AVSTRCHS
+	AVSTRCFS
+	AVSTRCZB
+	AVSTRCZH
+	AVSTRCZF
+	AVSTRCZBS
+	AVSTRCZHS
+	AVSTRCZFS
+	AVS
+	AVSB
+	AVSH
+	AVSF
+	AVSG
+	AVSQ
+	AVSCBI
+	AVSCBIB
+	AVSCBIH
+	AVSCBIF
+	AVSCBIG
+	AVSCBIQ
+	AVSBCBI
+	AVSBCBIQ
+	AVSBI
+	AVSBIQ
+	AVSUMG
+	AVSUMGH
+	AVSUMGF
+	AVSUMQ
+	AVSUMQF
+	AVSUMQG
+	AVSUM
+	AVSUMB
+	AVSUMH
+	AVTM
+	AVUPH
+	AVUPHB
+	AVUPHH
+	AVUPHF
+	AVUPLH
+	AVUPLHB
+	AVUPLHH
+	AVUPLHF
+	AVUPLL
+	AVUPLLB
+	AVUPLLH
+	AVUPLLF
+	AVUPL
+	AVUPLB
+	AVUPLHW
+	AVUPLF
+
+	// binary
+	ABYTE
+	AWORD
+	ADWORD
+
+	// end marker
+	ALAST
+
+	// aliases
+	ABR = obj.AJMP
+	ABL = obj.ACALL
+)

vendor/github.com/google/gops/internal/obj/s390x/anames.go

@@ -0,0 +1,675 @@
+// Generated by stringer -i a.out.go -o anames.go -p s390x
+// Do not edit.
+
+package s390x
+
+import "github.com/google/gops/internal/obj"
+
+var Anames = []string{
+	obj.A_ARCHSPECIFIC: "ADD",
+	"ADDC",
+	"ADDE",
+	"ADDW",
+	"DIVW",
+	"DIVWU",
+	"DIVD",
+	"DIVDU",
+	"MODW",
+	"MODWU",
+	"MODD",
+	"MODDU",
+	"MULLW",
+	"MULLD",
+	"MULHD",
+	"MULHDU",
+	"SUB",
+	"SUBC",
+	"SUBV",
+	"SUBE",
+	"SUBW",
+	"NEG",
+	"NEGW",
+	"MOVWBR",
+	"MOVB",
+	"MOVBZ",
+	"MOVH",
+	"MOVHBR",
+	"MOVHZ",
+	"MOVW",
+	"MOVWZ",
+	"MOVD",
+	"MOVDBR",
+	"MOVDEQ",
+	"MOVDGE",
+	"MOVDGT",
+	"MOVDLE",
+	"MOVDLT",
+	"MOVDNE",
+	"FLOGR",
+	"AND",
+	"ANDW",
+	"OR",
+	"ORW",
+	"XOR",
+	"XORW",
+	"SLW",
+	"SLD",
+	"SRW",
+	"SRAW",
+	"SRD",
+	"SRAD",
+	"RLL",
+	"RLLG",
+	"FABS",
+	"FADD",
+	"FADDS",
+	"FCMPO",
+	"FCMPU",
+	"CEBR",
+	"FDIV",
+	"FDIVS",
+	"FMADD",
+	"FMADDS",
+	"FMOVD",
+	"FMOVS",
+	"FMSUB",
+	"FMSUBS",
+	"FMUL",
+	"FMULS",
+	"FNABS",
+	"FNEG",
+	"FNEGS",
+	"FNMADD",
+	"FNMADDS",
+	"FNMSUB",
+	"FNMSUBS",
+	"LEDBR",
+	"LDEBR",
+	"FSUB",
+	"FSUBS",
+	"FSQRT",
+	"FSQRTS",
+	"FIEBR",
+	"FIDBR",
+	"CEFBRA",
+	"CDFBRA",
+	"CEGBRA",
+	"CDGBRA",
+	"CFEBRA",
+	"CFDBRA",
+	"CGEBRA",
+	"CGDBRA",
+	"CELFBR",
+	"CDLFBR",
+	"CELGBR",
+	"CDLGBR",
+	"CLFEBR",
+	"CLFDBR",
+	"CLGEBR",
+	"CLGDBR",
+	"CMP",
+	"CMPU",
+	"CMPW",
+	"CMPWU",
+	"CS",
+	"CSG",
+	"SYNC",
+	"BC",
+	"BCL",
+	"BEQ",
+	"BGE",
+	"BGT",
+	"BLE",
+	"BLT",
+	"BLEU",
+	"BLTU",
+	"BNE",
+	"BVC",
+	"BVS",
+	"SYSCALL",
+	"CMPBEQ",
+	"CMPBGE",
+	"CMPBGT",
+	"CMPBLE",
+	"CMPBLT",
+	"CMPBNE",
+	"CMPUBEQ",
+	"CMPUBGE",
+	"CMPUBGT",
+	"CMPUBLE",
+	"CMPUBLT",
+	"CMPUBNE",
+	"MVC",
+	"CLC",
+	"XC",
+	"OC",
+	"NC",
+	"EXRL",
+	"LARL",
+	"LA",
+	"LAY",
+	"LAA",
+	"LAAG",
+	"LAAL",
+	"LAALG",
+	"LAN",
+	"LANG",
+	"LAX",
+	"LAXG",
+	"LAO",
+	"LAOG",
+	"LMY",
+	"LMG",
+	"STMY",
+	"STMG",
+	"STCK",
+	"STCKC",
+	"STCKE",
+	"STCKF",
+	"CLEAR",
+	"VA",
+	"VAB",
+	"VAH",
+	"VAF",
+	"VAG",
+	"VAQ",
+	"VACC",
+	"VACCB",
+	"VACCH",
+	"VACCF",
+	"VACCG",
+	"VACCQ",
+	"VAC",
+	"VACQ",
+	"VACCC",
+	"VACCCQ",
+	"VN",
+	"VNC",
+	"VAVG",
+	"VAVGB",
+	"VAVGH",
+	"VAVGF",
+	"VAVGG",
+	"VAVGL",
+	"VAVGLB",
+	"VAVGLH",
+	"VAVGLF",
+	"VAVGLG",
+	"VCKSM",
+	"VCEQ",
+	"VCEQB",
+	"VCEQH",
+	"VCEQF",
+	"VCEQG",
+	"VCEQBS",
+	"VCEQHS",
+	"VCEQFS",
+	"VCEQGS",
+	"VCH",
+	"VCHB",
+	"VCHH",
+	"VCHF",
+	"VCHG",
+	"VCHBS",
+	"VCHHS",
+	"VCHFS",
+	"VCHGS",
+	"VCHL",
+	"VCHLB",
+	"VCHLH",
+	"VCHLF",
+	"VCHLG",
+	"VCHLBS",
+	"VCHLHS",
+	"VCHLFS",
+	"VCHLGS",
+	"VCLZ",
+	"VCLZB",
+	"VCLZH",
+	"VCLZF",
+	"VCLZG",
+	"VCTZ",
+	"VCTZB",
+	"VCTZH",
+	"VCTZF",
+	"VCTZG",
+	"VEC",
+	"VECB",
+	"VECH",
+	"VECF",
+	"VECG",
+	"VECL",
+	"VECLB",
+	"VECLH",
+	"VECLF",
+	"VECLG",
+	"VERIM",
+	"VERIMB",
+	"VERIMH",
+	"VERIMF",
+	"VERIMG",
+	"VERLL",
+	"VERLLB",
+	"VERLLH",
+	"VERLLF",
+	"VERLLG",
+	"VERLLV",
+	"VERLLVB",
+	"VERLLVH",
+	"VERLLVF",
+	"VERLLVG",
+	"VESLV",
+	"VESLVB",
+	"VESLVH",
+	"VESLVF",
+	"VESLVG",
+	"VESL",
+	"VESLB",
+	"VESLH",
+	"VESLF",
+	"VESLG",
+	"VESRA",
+	"VESRAB",
+	"VESRAH",
+	"VESRAF",
+	"VESRAG",
+	"VESRAV",
+	"VESRAVB",
+	"VESRAVH",
+	"VESRAVF",
+	"VESRAVG",
+	"VESRL",
+	"VESRLB",
+	"VESRLH",
+	"VESRLF",
+	"VESRLG",
+	"VESRLV",
+	"VESRLVB",
+	"VESRLVH",
+	"VESRLVF",
+	"VESRLVG",
+	"VX",
+	"VFAE",
+	"VFAEB",
+	"VFAEH",
+	"VFAEF",
+	"VFAEBS",
+	"VFAEHS",
+	"VFAEFS",
+	"VFAEZB",
+	"VFAEZH",
+	"VFAEZF",
+	"VFAEZBS",
+	"VFAEZHS",
+	"VFAEZFS",
+	"VFEE",
+	"VFEEB",
+	"VFEEH",
+	"VFEEF",
+	"VFEEBS",
+	"VFEEHS",
+	"VFEEFS",
+	"VFEEZB",
+	"VFEEZH",
+	"VFEEZF",
+	"VFEEZBS",
+	"VFEEZHS",
+	"VFEEZFS",
+	"VFENE",
+	"VFENEB",
+	"VFENEH",
+	"VFENEF",
+	"VFENEBS",
+	"VFENEHS",
+	"VFENEFS",
+	"VFENEZB",
+	"VFENEZH",
+	"VFENEZF",
+	"VFENEZBS",
+	"VFENEZHS",
+	"VFENEZFS",
+	"VFA",
+	"VFADB",
+	"WFADB",
+	"WFK",
+	"WFKDB",
+	"VFCE",
+	"VFCEDB",
+	"VFCEDBS",
+	"WFCEDB",
+	"WFCEDBS",
+	"VFCH",
+	"VFCHDB",
+	"VFCHDBS",
+	"WFCHDB",
+	"WFCHDBS",
+	"VFCHE",
+	"VFCHEDB",
+	"VFCHEDBS",
+	"WFCHEDB",
+	"WFCHEDBS",
+	"WFC",
+	"WFCDB",
+	"VCDG",
+	"VCDGB",
+	"WCDGB",
+	"VCDLG",
+	"VCDLGB",
+	"WCDLGB",
+	"VCGD",
+	"VCGDB",
+	"WCGDB",
+	"VCLGD",
+	"VCLGDB",
+	"WCLGDB",
+	"VFD",
+	"VFDDB",
+	"WFDDB",
+	"VLDE",
+	"VLDEB",
+	"WLDEB",
+	"VLED",
+	"VLEDB",
+	"WLEDB",
+	"VFM",
+	"VFMDB",
+	"WFMDB",
+	"VFMA",
+	"VFMADB",
+	"WFMADB",
+	"VFMS",
+	"VFMSDB",
+	"WFMSDB",
+	"VFPSO",
+	"VFPSODB",
+	"WFPSODB",
+	"VFLCDB",
+	"WFLCDB",
+	"VFLNDB",
+	"WFLNDB",
+	"VFLPDB",
+	"WFLPDB",
+	"VFSQ",
+	"VFSQDB",
+	"WFSQDB",
+	"VFS",
+	"VFSDB",
+	"WFSDB",
+	"VFTCI",
+	"VFTCIDB",
+	"WFTCIDB",
+	"VGFM",
+	"VGFMB",
+	"VGFMH",
+	"VGFMF",
+	"VGFMG",
+	"VGFMA",
+	"VGFMAB",
+	"VGFMAH",
+	"VGFMAF",
+	"VGFMAG",
+	"VGEF",
+	"VGEG",
+	"VGBM",
+	"VZERO",
+	"VONE",
+	"VGM",
+	"VGMB",
+	"VGMH",
+	"VGMF",
+	"VGMG",
+	"VISTR",
+	"VISTRB",
+	"VISTRH",
+	"VISTRF",
+	"VISTRBS",
+	"VISTRHS",
+	"VISTRFS",
+	"VL",
+	"VLR",
+	"VLREP",
+	"VLREPB",
+	"VLREPH",
+	"VLREPF",
+	"VLREPG",
+	"VLC",
+	"VLCB",
+	"VLCH",
+	"VLCF",
+	"VLCG",
+	"VLEH",
+	"VLEF",
+	"VLEG",
+	"VLEB",
+	"VLEIH",
+	"VLEIF",
+	"VLEIG",
+	"VLEIB",
+	"VFI",
+	"VFIDB",
+	"WFIDB",
+	"VLGV",
+	"VLGVB",
+	"VLGVH",
+	"VLGVF",
+	"VLGVG",
+	"VLLEZ",
+	"VLLEZB",
+	"VLLEZH",
+	"VLLEZF",
+	"VLLEZG",
+	"VLM",
+	"VLP",
+	"VLPB",
+	"VLPH",
+	"VLPF",
+	"VLPG",
+	"VLBB",
+	"VLVG",
+	"VLVGB",
+	"VLVGH",
+	"VLVGF",
+	"VLVGG",
+	"VLVGP",
+	"VLL",
+	"VMX",
+	"VMXB",
+	"VMXH",
+	"VMXF",
+	"VMXG",
+	"VMXL",
+	"VMXLB",
+	"VMXLH",
+	"VMXLF",
+	"VMXLG",
+	"VMRH",
+	"VMRHB",
+	"VMRHH",
+	"VMRHF",
+	"VMRHG",
+	"VMRL",
+	"VMRLB",
+	"VMRLH",
+	"VMRLF",
+	"VMRLG",
+	"VMN",
+	"VMNB",
+	"VMNH",
+	"VMNF",
+	"VMNG",
+	"VMNL",
+	"VMNLB",
+	"VMNLH",
+	"VMNLF",
+	"VMNLG",
+	"VMAE",
+	"VMAEB",
+	"VMAEH",
+	"VMAEF",
+	"VMAH",
+	"VMAHB",
+	"VMAHH",
+	"VMAHF",
+	"VMALE",
+	"VMALEB",
+	"VMALEH",
+	"VMALEF",
+	"VMALH",
+	"VMALHB",
+	"VMALHH",
+	"VMALHF",
+	"VMALO",
+	"VMALOB",
+	"VMALOH",
+	"VMALOF",
+	"VMAL",
+	"VMALB",
+	"VMALHW",
+	"VMALF",
+	"VMAO",
+	"VMAOB",
+	"VMAOH",
+	"VMAOF",
+	"VME",
+	"VMEB",
+	"VMEH",
+	"VMEF",
+	"VMH",
+	"VMHB",
+	"VMHH",
+	"VMHF",
+	"VMLE",
+	"VMLEB",
+	"VMLEH",
+	"VMLEF",
+	"VMLH",
+	"VMLHB",
+	"VMLHH",
+	"VMLHF",
+	"VMLO",
+	"VMLOB",
+	"VMLOH",
+	"VMLOF",
+	"VML",
+	"VMLB",
+	"VMLHW",
+	"VMLF",
+	"VMO",
+	"VMOB",
+	"VMOH",
+	"VMOF",
+	"VNO",
+	"VNOT",
+	"VO",
+	"VPK",
+	"VPKH",
+	"VPKF",
+	"VPKG",
+	"VPKLS",
+	"VPKLSH",
+	"VPKLSF",
+	"VPKLSG",
+	"VPKLSHS",
+	"VPKLSFS",
+	"VPKLSGS",
+	"VPKS",
+	"VPKSH",
+	"VPKSF",
+	"VPKSG",
+	"VPKSHS",
+	"VPKSFS",
+	"VPKSGS",
+	"VPERM",
+	"VPDI",
+	"VPOPCT",
+	"VREP",
+	"VREPB",
+	"VREPH",
+	"VREPF",
+	"VREPG",
+	"VREPI",
+	"VREPIB",
+	"VREPIH",
+	"VREPIF",
+	"VREPIG",
+	"VSCEF",
+	"VSCEG",
+	"VSEL",
+	"VSL",
+	"VSLB",
+	"VSLDB",
+	"VSRA",
+	"VSRAB",
+	"VSRL",
+	"VSRLB",
+	"VSEG",
+	"VSEGB",
+	"VSEGH",
+	"VSEGF",
+	"VST",
+	"VSTEH",
+	"VSTEF",
+	"VSTEG",
+	"VSTEB",
+	"VSTM",
+	"VSTL",
+	"VSTRC",
+	"VSTRCB",
+	"VSTRCH",
+	"VSTRCF",
+	"VSTRCBS",
+	"VSTRCHS",
+	"VSTRCFS",
+	"VSTRCZB",
+	"VSTRCZH",
+	"VSTRCZF",
+	"VSTRCZBS",
+	"VSTRCZHS",
+	"VSTRCZFS",
+	"VS",
+	"VSB",
+	"VSH",
+	"VSF",
+	"VSG",
+	"VSQ",
+	"VSCBI",
+	"VSCBIB",
+	"VSCBIH",
+	"VSCBIF",
+	"VSCBIG",
+	"VSCBIQ",
+	"VSBCBI",
+	"VSBCBIQ",
+	"VSBI",
+	"VSBIQ",
+	"VSUMG",
+	"VSUMGH",
+	"VSUMGF",
+	"VSUMQ",
+	"VSUMQF",
+	"VSUMQG",
+	"VSUM",
+	"VSUMB",
+	"VSUMH",
+	"VTM",
+	"VUPH",
+	"VUPHB",
+	"VUPHH",
+	"VUPHF",
+	"VUPLH",
+	"VUPLHB",
+	"VUPLHH",
+	"VUPLHF",
+	"VUPLL",
+	"VUPLLB",
+	"VUPLLH",
+	"VUPLLF",
+	"VUPL",
+	"VUPLB",
+	"VUPLHW",
+	"VUPLF",
+	"BYTE",
+	"WORD",
+	"DWORD",
+	"LAST",
+}

vendor/github.com/google/gops/internal/obj/s390x/anamesz.go

@@ -0,0 +1,39 @@
+// Copyright 2016 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package s390x
+
+var cnamesz = []string{
+	"NONE",
+	"REG",
+	"FREG",
+	"VREG",
+	"AREG",
+	"ZCON",
+	"SCON",
+	"UCON",
+	"ADDCON",
+	"ANDCON",
+	"LCON",
+	"DCON",
+	"SACON",
+	"LACON",
+	"DACON",
+	"SBRA",
+	"LBRA",
+	"SAUTO",
+	"LAUTO",
+	"ZOREG",
+	"SOREG",
+	"LOREG",
+	"TLS_LE",
+	"TLS_IE",
+	"GOK",
+	"ADDR",
+	"SYMADDR",
+	"GOTADDR",
+	"TEXTSIZE",
+	"ANY",
+	"NCLASS",
+}

vendor/github.com/google/gops/internal/obj/s390x/listz.go

@@ -0,0 +1,74 @@
+// Based on cmd/internal/obj/ppc64/list9.go.
+//
+//	Copyright © 1994-1999 Lucent Technologies Inc.  All rights reserved.
+//	Portions Copyright © 1995-1997 C H Forsyth (forsyth@terzarima.net)
+//	Portions Copyright © 1997-1999 Vita Nuova Limited
+//	Portions Copyright © 2000-2008 Vita Nuova Holdings Limited (www.vitanuova.com)
+//	Portions Copyright © 2004,2006 Bruce Ellis
+//	Portions Copyright © 2005-2007 C H Forsyth (forsyth@terzarima.net)
+//	Revisions Copyright © 2000-2008 Lucent Technologies Inc. and others
+//	Portions Copyright © 2009 The Go Authors. All rights reserved.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+package s390x
+
+import (
+	"fmt"
+
+	"github.com/google/gops/internal/obj"
+)
+
+func init() {
+	obj.RegisterRegister(obj.RBaseS390X, REG_R0+1024, Rconv)
+	obj.RegisterOpcode(obj.ABaseS390X, Anames)
+}
+
+func Rconv(r int) string {
+	if r == 0 {
+		return "NONE"
+	}
+	if r == REGG {
+		// Special case.
+		return "g"
+	}
+	if REG_R0 <= r && r <= REG_R15 {
+		return fmt.Sprintf("R%d", r-REG_R0)
+	}
+	if REG_F0 <= r && r <= REG_F15 {
+		return fmt.Sprintf("F%d", r-REG_F0)
+	}
+	if REG_AR0 <= r && r <= REG_AR15 {
+		return fmt.Sprintf("AR%d", r-REG_AR0)
+	}
+	if REG_V0 <= r && r <= REG_V31 {
+		return fmt.Sprintf("V%d", r-REG_V0)
+	}
+	return fmt.Sprintf("Rgok(%d)", r-obj.RBaseS390X)
+}
+
+func DRconv(a int) string {
+	s := "C_??"
+	if a >= C_NONE && a <= C_NCLASS {
+		s = cnamesz[a]
+	}
+	var fp string
+	fp += s
+	return fp
+}

vendor/github.com/google/gops/internal/obj/stack.go

@@ -0,0 +1,21 @@
+// Copyright 2011 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package obj
+
+// For the linkers. Must match Go definitions.
+// TODO(rsc): Share Go definitions with linkers directly.
+
+const (
+	STACKSYSTEM = 0
+	StackSystem = STACKSYSTEM
+	StackBig    = 4096
+	StackGuard  = 880*stackGuardMultiplier + StackSystem
+	StackSmall  = 128
+	StackLimit  = StackGuard - StackSystem - StackSmall
+)
+
+const (
+	StackPreempt = -1314 // 0xfff...fade
+)

vendor/github.com/google/gops/internal/obj/stringer.go

@@ -0,0 +1,104 @@
+// Copyright 2015 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build ignore
+
+// This is a mini version of the stringer tool customized for the Anames table
+// in the architecture support for obj.
+// This version just generates the slice of strings, not the String method.
+
+package main
+
+import (
+	"bufio"
+	"flag"
+	"fmt"
+	"log"
+	"os"
+	"regexp"
+	"strings"
+)
+
+var (
+	input  = flag.String("i", "", "input file name")
+	output = flag.String("o", "", "output file name")
+	pkg    = flag.String("p", "", "package name")
+)
+
+var Are = regexp.MustCompile(`^\tA([A-Z0-9]+)`)
+
+func main() {
+	flag.Parse()
+	if *input == "" || *output == "" || *pkg == "" {
+		flag.Usage()
+		os.Exit(2)
+	}
+	in, err := os.Open(*input)
+	if err != nil {
+		log.Fatal(err)
+	}
+	fd, err := os.Create(*output)
+	if err != nil {
+		log.Fatal(err)
+	}
+	out := bufio.NewWriter(fd)
+	defer out.Flush()
+	var on = false
+	s := bufio.NewScanner(in)
+	first := true
+	for s.Scan() {
+		line := s.Text()
+		if !on {
+			// First relevant line contains "= obj.ABase".
+			// If we find it, delete the = so we don't stop immediately.
+			const prefix = "= obj.ABase"
+			index := strings.Index(line, prefix)
+			if index < 0 {
+				continue
+			}
+			// It's on. Start with the header.
+			fmt.Fprintf(out, header, *input, *output, *pkg, *pkg)
+			on = true
+			line = line[:index]
+		}
+		// Strip comments so their text won't defeat our heuristic.
+		index := strings.Index(line, "//")
+		if index > 0 {
+			line = line[:index]
+		}
+		index = strings.Index(line, "/*")
+		if index > 0 {
+			line = line[:index]
+		}
+		// Termination condition: Any line with an = changes the sequence,
+		// so stop there, and stop at a closing brace.
+		if strings.HasPrefix(line, "}") || strings.ContainsRune(line, '=') {
+			break
+		}
+		sub := Are.FindStringSubmatch(line)
+		if len(sub) < 2 {
+			continue
+		}
+		if first {
+			fmt.Fprintf(out, "\tobj.A_ARCHSPECIFIC: %q,\n", sub[1])
+			first = false
+		} else {
+			fmt.Fprintf(out, "\t%q,\n", sub[1])
+		}
+	}
+	fmt.Fprintln(out, "}")
+	if s.Err() != nil {
+		log.Fatal(err)
+	}
+}
+
+const header = `// Generated by stringer -i %s -o %s -p %s
+// Do not edit.
+
+package %s
+
+import "github.com/google/gops/internal/obj"
+
+var Anames = []string{
+`

vendor/github.com/google/gops/internal/obj/sym.go

@@ -0,0 +1,88 @@
+// Derived from Inferno utils/6l/obj.c and utils/6l/span.c
+// https://bitbucket.org/inferno-os/inferno-os/src/default/utils/6l/obj.c
+// https://bitbucket.org/inferno-os/inferno-os/src/default/utils/6l/span.c
+//
+//	Copyright © 1994-1999 Lucent Technologies Inc.  All rights reserved.
+//	Portions Copyright © 1995-1997 C H Forsyth (forsyth@terzarima.net)
+//	Portions Copyright © 1997-1999 Vita Nuova Limited
+//	Portions Copyright © 2000-2007 Vita Nuova Holdings Limited (www.vitanuova.com)
+//	Portions Copyright © 2004,2006 Bruce Ellis
+//	Portions Copyright © 2005-2007 C H Forsyth (forsyth@terzarima.net)
+//	Revisions Copyright © 2000-2007 Lucent Technologies Inc. and others
+//	Portions Copyright © 2009 The Go Authors. All rights reserved.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+package obj
+
+import (
+	"log"
+	"os"
+	"path/filepath"
+)
+
+func Linknew(arch *LinkArch) *Link {
+	ctxt := new(Link)
+	ctxt.Hash = make(map[SymVer]*LSym)
+	ctxt.Arch = arch
+	ctxt.Version = HistVersion
+
+	var buf string
+	buf, _ = os.Getwd()
+	if buf == "" {
+		buf = "/???"
+	}
+	buf = filepath.ToSlash(buf)
+	ctxt.Pathname = buf
+
+	ctxt.LineHist.GOROOT = GOROOT
+	ctxt.LineHist.Dir = ctxt.Pathname
+
+	ctxt.Headtype.Set(GOOS)
+	if ctxt.Headtype < 0 {
+		log.Fatalf("unknown goos %s", GOOS)
+	}
+
+	ctxt.Flag_optimize = true
+	ctxt.Framepointer_enabled = Framepointer_enabled(GOOS, arch.Name)
+	return ctxt
+}
+
+func Linklookup(ctxt *Link, name string, v int) *LSym {
+	s := ctxt.Hash[SymVer{name, v}]
+	if s != nil {
+		return s
+	}
+
+	s = &LSym{
+		Name:    name,
+		Type:    0,
+		Version: int16(v),
+		Size:    0,
+	}
+	ctxt.Hash[SymVer{name, v}] = s
+	return s
+}
+
+func Linksymfmt(s *LSym) string {
+	if s == nil {
+		return "<nil>"
+	}
+	return s.Name
+}

vendor/github.com/google/gops/internal/obj/symkind_string.go

@@ -0,0 +1,16 @@
+// Code generated by "stringer -type=SymKind"; DO NOT EDIT
+
+package obj
+
+import "fmt"
+
+const _SymKind_name = "SxxxSTEXTSELFRXSECTSTYPESSTRINGSGOSTRINGSGOFUNCSGCBITSSRODATASFUNCTABSELFROSECTSMACHOPLTSTYPERELROSSTRINGRELROSGOSTRINGRELROSGOFUNCRELROSGCBITSRELROSRODATARELROSFUNCTABRELROSTYPELINKSITABLINKSSYMTABSPCLNTABSELFSECTSMACHOSMACHOGOTSWINDOWSSELFGOTSNOPTRDATASINITARRSDATASBSSSNOPTRBSSSTLSBSSSXREFSMACHOSYMSTRSMACHOSYMTABSMACHOINDIRECTPLTSMACHOINDIRECTGOTSFILESFILEPATHSCONSTSDYNIMPORTSHOSTOBJSDWARFSECTSDWARFINFO"
+
+var _SymKind_index = [...]uint16{0, 4, 9, 19, 24, 31, 40, 47, 54, 61, 69, 79, 88, 98, 110, 124, 136, 148, 160, 173, 182, 191, 198, 206, 214, 220, 229, 237, 244, 254, 262, 267, 271, 280, 287, 292, 304, 316, 333, 350, 355, 364, 370, 380, 388, 398, 408}
+
+func (i SymKind) String() string {
+	if i < 0 || i >= SymKind(len(_SymKind_index)-1) {
+		return fmt.Sprintf("SymKind(%d)", i)
+	}
+	return _SymKind_name[_SymKind_index[i]:_SymKind_index[i+1]]
+}

vendor/github.com/google/gops/internal/obj/textflag.go

@@ -0,0 +1,50 @@
+// Copyright 2013 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// This file defines flags attached to various functions
+// and data objects. The compilers, assemblers, and linker must
+// all agree on these values.
+
+package obj
+
+const (
+	// Don't profile the marked routine.
+	//
+	// Deprecated: Not implemented, do not use.
+	NOPROF = 1
+
+	// It is ok for the linker to get multiple of these symbols. It will
+	// pick one of the duplicates to use.
+	DUPOK = 2
+
+	// Don't insert stack check preamble.
+	NOSPLIT = 4
+
+	// Put this data in a read-only section.
+	RODATA = 8
+
+	// This data contains no pointers.
+	NOPTR = 16
+
+	// This is a wrapper function and should not count as disabling 'recover'.
+	WRAPPER = 32
+
+	// This function uses its incoming context register.
+	NEEDCTXT = 64
+
+	// When passed to ggloblsym, causes Local to be set to true on the LSym it creates.
+	LOCAL = 128
+
+	// Allocate a word of thread local storage and store the offset from the
+	// thread local base to the thread local storage in this variable.
+	TLSBSS = 256
+
+	// Do not insert instructions to allocate a stack frame for this function.
+	// Only valid on functions that declare a frame size of 0.
+	// TODO(mwhudson): only implemented for ppc64x at present.
+	NOFRAME = 512
+
+	// Function can call reflect.Type.Method or reflect.Type.MethodByName.
+	REFLECTMETHOD = 1024
+)

vendor/github.com/google/gops/internal/obj/typekind.go

@@ -0,0 +1,41 @@
+// Copyright 2012 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package obj
+
+// Must match runtime and reflect.
+// Included by cmd/gc.
+
+const (
+	KindBool = 1 + iota
+	KindInt
+	KindInt8
+	KindInt16
+	KindInt32
+	KindInt64
+	KindUint
+	KindUint8
+	KindUint16
+	KindUint32
+	KindUint64
+	KindUintptr
+	KindFloat32
+	KindFloat64
+	KindComplex64
+	KindComplex128
+	KindArray
+	KindChan
+	KindFunc
+	KindInterface
+	KindMap
+	KindPtr
+	KindSlice
+	KindString
+	KindStruct
+	KindUnsafePointer
+	KindDirectIface = 1 << 5
+	KindGCProg      = 1 << 6
+	KindNoPointers  = 1 << 7
+	KindMask        = (1 << 5) - 1
+)

vendor/github.com/google/gops/internal/obj/util.go

@@ -0,0 +1,499 @@
+// Copyright 2015 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package obj
+
+import (
+	"bytes"
+	"fmt"
+	"log"
+	"os"
+	"strings"
+	"time"
+)
+
+const REG_NONE = 0
+
+var start time.Time
+
+func Cputime() float64 {
+	if start.IsZero() {
+		start = time.Now()
+	}
+	return time.Since(start).Seconds()
+}
+
+func envOr(key, value string) string {
+	if x := os.Getenv(key); x != "" {
+		return x
+	}
+	return value
+}
+
+var (
+	GOROOT  = envOr("GOROOT", defaultGOROOT)
+	GOARCH  = envOr("GOARCH", defaultGOARCH)
+	GOOS    = envOr("GOOS", defaultGOOS)
+	GO386   = envOr("GO386", defaultGO386)
+	GOARM   = goarm()
+	Version = version
+)
+
+func goarm() int {
+	switch v := envOr("GOARM", defaultGOARM); v {
+	case "5":
+		return 5
+	case "6":
+		return 6
+	case "7":
+		return 7
+	}
+	// Fail here, rather than validate at multiple call sites.
+	log.Fatalf("Invalid GOARM value. Must be 5, 6, or 7.")
+	panic("unreachable")
+}
+
+func Getgoextlinkenabled() string {
+	return envOr("GO_EXTLINK_ENABLED", defaultGO_EXTLINK_ENABLED)
+}
+
+func (p *Prog) Line() string {
+	return p.Ctxt.LineHist.LineString(int(p.Lineno))
+}
+
+var armCondCode = []string{
+	".EQ",
+	".NE",
+	".CS",
+	".CC",
+	".MI",
+	".PL",
+	".VS",
+	".VC",
+	".HI",
+	".LS",
+	".GE",
+	".LT",
+	".GT",
+	".LE",
+	"",
+	".NV",
+}
+
+/* ARM scond byte */
+const (
+	C_SCOND     = (1 << 4) - 1
+	C_SBIT      = 1 << 4
+	C_PBIT      = 1 << 5
+	C_WBIT      = 1 << 6
+	C_FBIT      = 1 << 7
+	C_UBIT      = 1 << 7
+	C_SCOND_XOR = 14
+)
+
+// CConv formats ARM condition codes.
+func CConv(s uint8) string {
+	if s == 0 {
+		return ""
+	}
+	sc := armCondCode[(s&C_SCOND)^C_SCOND_XOR]
+	if s&C_SBIT != 0 {
+		sc += ".S"
+	}
+	if s&C_PBIT != 0 {
+		sc += ".P"
+	}
+	if s&C_WBIT != 0 {
+		sc += ".W"
+	}
+	if s&C_UBIT != 0 { /* ambiguous with FBIT */
+		sc += ".U"
+	}
+	return sc
+}
+
+func (p *Prog) String() string {
+	if p == nil {
+		return "<nil Prog>"
+	}
+
+	if p.Ctxt == nil {
+		return "<Prog without ctxt>"
+	}
+
+	sc := CConv(p.Scond)
+
+	var buf bytes.Buffer
+
+	fmt.Fprintf(&buf, "%.5d (%v)\t%v%s", p.Pc, p.Line(), p.As, sc)
+	sep := "\t"
+	quadOpAmd64 := p.RegTo2 == -1
+	if quadOpAmd64 {
+		fmt.Fprintf(&buf, "%s$%d", sep, p.From3.Offset)
+		sep = ", "
+	}
+	if p.From.Type != TYPE_NONE {
+		fmt.Fprintf(&buf, "%s%v", sep, Dconv(p, &p.From))
+		sep = ", "
+	}
+	if p.Reg != REG_NONE {
+		// Should not happen but might as well show it if it does.
+		fmt.Fprintf(&buf, "%s%v", sep, Rconv(int(p.Reg)))
+		sep = ", "
+	}
+	if p.From3Type() != TYPE_NONE {
+		if p.From3.Type == TYPE_CONST && p.As == ATEXT {
+			// Special case - omit $.
+			fmt.Fprintf(&buf, "%s%d", sep, p.From3.Offset)
+		} else if quadOpAmd64 {
+			fmt.Fprintf(&buf, "%s%v", sep, Rconv(int(p.From3.Reg)))
+		} else {
+			fmt.Fprintf(&buf, "%s%v", sep, Dconv(p, p.From3))
+		}
+		sep = ", "
+	}
+	if p.To.Type != TYPE_NONE {
+		fmt.Fprintf(&buf, "%s%v", sep, Dconv(p, &p.To))
+	}
+	if p.RegTo2 != REG_NONE && !quadOpAmd64 {
+		fmt.Fprintf(&buf, "%s%v", sep, Rconv(int(p.RegTo2)))
+	}
+	return buf.String()
+}
+
+func (ctxt *Link) NewProg() *Prog {
+	var p *Prog
+	if i := ctxt.allocIdx; i < len(ctxt.progs) {
+		p = &ctxt.progs[i]
+		ctxt.allocIdx = i + 1
+	} else {
+		p = new(Prog) // should be the only call to this; all others should use ctxt.NewProg
+	}
+	p.Ctxt = ctxt
+	return p
+}
+func (ctxt *Link) freeProgs() {
+	s := ctxt.progs[:ctxt.allocIdx]
+	for i := range s {
+		s[i] = Prog{}
+	}
+	ctxt.allocIdx = 0
+}
+
+func (ctxt *Link) Line(n int) string {
+	return ctxt.LineHist.LineString(n)
+}
+
+func Getcallerpc(interface{}) uintptr {
+	return 1
+}
+
+func (ctxt *Link) Dconv(a *Addr) string {
+	return Dconv(nil, a)
+}
+
+func Dconv(p *Prog, a *Addr) string {
+	var str string
+
+	switch a.Type {
+	default:
+		str = fmt.Sprintf("type=%d", a.Type)
+
+	case TYPE_NONE:
+		str = ""
+		if a.Name != NAME_NONE || a.Reg != 0 || a.Sym != nil {
+			str = fmt.Sprintf("%v(%v)(NONE)", Mconv(a), Rconv(int(a.Reg)))
+		}
+
+	case TYPE_REG:
+		// TODO(rsc): This special case is for x86 instructions like
+		//	PINSRQ	CX,$1,X6
+		// where the $1 is included in the p->to Addr.
+		// Move into a new field.
+		if a.Offset != 0 {
+			str = fmt.Sprintf("$%d,%v", a.Offset, Rconv(int(a.Reg)))
+			break
+		}
+
+		str = Rconv(int(a.Reg))
+		if a.Name != NAME_NONE || a.Sym != nil {
+			str = fmt.Sprintf("%v(%v)(REG)", Mconv(a), Rconv(int(a.Reg)))
+		}
+
+	case TYPE_BRANCH:
+		if a.Sym != nil {
+			str = fmt.Sprintf("%s(SB)", a.Sym.Name)
+		} else if p != nil && p.Pcond != nil {
+			str = fmt.Sprint(p.Pcond.Pc)
+		} else if a.Val != nil {
+			str = fmt.Sprint(a.Val.(*Prog).Pc)
+		} else {
+			str = fmt.Sprintf("%d(PC)", a.Offset)
+		}
+
+	case TYPE_INDIR:
+		str = fmt.Sprintf("*%s", Mconv(a))
+
+	case TYPE_MEM:
+		str = Mconv(a)
+		if a.Index != REG_NONE {
+			str += fmt.Sprintf("(%v*%d)", Rconv(int(a.Index)), int(a.Scale))
+		}
+
+	case TYPE_CONST:
+		if a.Reg != 0 {
+			str = fmt.Sprintf("$%v(%v)", Mconv(a), Rconv(int(a.Reg)))
+		} else {
+			str = fmt.Sprintf("$%v", Mconv(a))
+		}
+
+	case TYPE_TEXTSIZE:
+		if a.Val.(int32) == ArgsSizeUnknown {
+			str = fmt.Sprintf("$%d", a.Offset)
+		} else {
+			str = fmt.Sprintf("$%d-%d", a.Offset, a.Val.(int32))
+		}
+
+	case TYPE_FCONST:
+		str = fmt.Sprintf("%.17g", a.Val.(float64))
+		// Make sure 1 prints as 1.0
+		if !strings.ContainsAny(str, ".e") {
+			str += ".0"
+		}
+		str = fmt.Sprintf("$(%s)", str)
+
+	case TYPE_SCONST:
+		str = fmt.Sprintf("$%q", a.Val.(string))
+
+	case TYPE_ADDR:
+		str = fmt.Sprintf("$%s", Mconv(a))
+
+	case TYPE_SHIFT:
+		v := int(a.Offset)
+		ops := "<<>>->@>"
+		switch GOARCH {
+		case "arm":
+			op := ops[((v>>5)&3)<<1:]
+			if v&(1<<4) != 0 {
+				str = fmt.Sprintf("R%d%c%cR%d", v&15, op[0], op[1], (v>>8)&15)
+			} else {
+				str = fmt.Sprintf("R%d%c%c%d", v&15, op[0], op[1], (v>>7)&31)
+			}
+			if a.Reg != 0 {
+				str += fmt.Sprintf("(%v)", Rconv(int(a.Reg)))
+			}
+		case "arm64":
+			op := ops[((v>>22)&3)<<1:]
+			str = fmt.Sprintf("R%d%c%c%d", (v>>16)&31, op[0], op[1], (v>>10)&63)
+		default:
+			panic("TYPE_SHIFT is not supported on " + GOARCH)
+		}
+
+	case TYPE_REGREG:
+		str = fmt.Sprintf("(%v, %v)", Rconv(int(a.Reg)), Rconv(int(a.Offset)))
+
+	case TYPE_REGREG2:
+		str = fmt.Sprintf("%v, %v", Rconv(int(a.Reg)), Rconv(int(a.Offset)))
+
+	case TYPE_REGLIST:
+		str = regListConv(int(a.Offset))
+	}
+
+	return str
+}
+
+func Mconv(a *Addr) string {
+	var str string
+
+	switch a.Name {
+	default:
+		str = fmt.Sprintf("name=%d", a.Name)
+
+	case NAME_NONE:
+		switch {
+		case a.Reg == REG_NONE:
+			str = fmt.Sprint(a.Offset)
+		case a.Offset == 0:
+			str = fmt.Sprintf("(%v)", Rconv(int(a.Reg)))
+		case a.Offset != 0:
+			str = fmt.Sprintf("%d(%v)", a.Offset, Rconv(int(a.Reg)))
+		}
+
+	case NAME_EXTERN:
+		if a.Sym != nil {
+			str = fmt.Sprintf("%s%s(SB)", a.Sym.Name, offConv(a.Offset))
+		} else {
+			str = fmt.Sprintf("%s(SB)", offConv(a.Offset))
+		}
+
+	case NAME_GOTREF:
+		if a.Sym != nil {
+			str = fmt.Sprintf("%s%s@GOT(SB)", a.Sym.Name, offConv(a.Offset))
+		} else {
+			str = fmt.Sprintf("%s@GOT(SB)", offConv(a.Offset))
+		}
+
+	case NAME_STATIC:
+		if a.Sym != nil {
+			str = fmt.Sprintf("%s<>%s(SB)", a.Sym.Name, offConv(a.Offset))
+		} else {
+			str = fmt.Sprintf("<>%s(SB)", offConv(a.Offset))
+		}
+
+	case NAME_AUTO:
+		if a.Sym != nil {
+			str = fmt.Sprintf("%s%s(SP)", a.Sym.Name, offConv(a.Offset))
+		} else {
+			str = fmt.Sprintf("%s(SP)", offConv(a.Offset))
+		}
+
+	case NAME_PARAM:
+		if a.Sym != nil {
+			str = fmt.Sprintf("%s%s(FP)", a.Sym.Name, offConv(a.Offset))
+		} else {
+			str = fmt.Sprintf("%s(FP)", offConv(a.Offset))
+		}
+	}
+	return str
+}
+
+func offConv(off int64) string {
+	if off == 0 {
+		return ""
+	}
+	return fmt.Sprintf("%+d", off)
+}
+
+type regSet struct {
+	lo    int
+	hi    int
+	Rconv func(int) string
+}
+
+// Few enough architectures that a linear scan is fastest.
+// Not even worth sorting.
+var regSpace []regSet
+
+/*
+	Each architecture defines a register space as a unique
+	integer range.
+	Here is the list of architectures and the base of their register spaces.
+*/
+
+const (
+	// Because of masking operations in the encodings, each register
+	// space should start at 0 modulo some power of 2.
+	RBase386    = 1 * 1024
+	RBaseAMD64  = 2 * 1024
+	RBaseARM    = 3 * 1024
+	RBasePPC64  = 4 * 1024  // range [4k, 8k)
+	RBaseARM64  = 8 * 1024  // range [8k, 13k)
+	RBaseMIPS64 = 13 * 1024 // range [13k, 14k)
+	RBaseS390X  = 14 * 1024 // range [14k, 15k)
+)
+
+// RegisterRegister binds a pretty-printer (Rconv) for register
+// numbers to a given register number range. Lo is inclusive,
+// hi exclusive (valid registers are lo through hi-1).
+func RegisterRegister(lo, hi int, Rconv func(int) string) {
+	regSpace = append(regSpace, regSet{lo, hi, Rconv})
+}
+
+func Rconv(reg int) string {
+	if reg == REG_NONE {
+		return "NONE"
+	}
+	for i := range regSpace {
+		rs := &regSpace[i]
+		if rs.lo <= reg && reg < rs.hi {
+			return rs.Rconv(reg)
+		}
+	}
+	return fmt.Sprintf("R???%d", reg)
+}
+
+func regListConv(list int) string {
+	str := ""
+
+	for i := 0; i < 16; i++ { // TODO: 16 is ARM-specific.
+		if list&(1<<uint(i)) != 0 {
+			if str == "" {
+				str += "["
+			} else {
+				str += ","
+			}
+			// This is ARM-specific; R10 is g.
+			if i == 10 {
+				str += "g"
+			} else {
+				str += fmt.Sprintf("R%d", i)
+			}
+		}
+	}
+
+	str += "]"
+	return str
+}
+
+type opSet struct {
+	lo    As
+	names []string
+}
+
+// Not even worth sorting
+var aSpace []opSet
+
+// RegisterOpcode binds a list of instruction names
+// to a given instruction number range.
+func RegisterOpcode(lo As, Anames []string) {
+	if len(Anames) > AllowedOpCodes {
+		panic(fmt.Sprintf("too many instructions, have %d max %d", len(Anames), AllowedOpCodes))
+	}
+	aSpace = append(aSpace, opSet{lo, Anames})
+}
+
+func (a As) String() string {
+	if 0 <= a && int(a) < len(Anames) {
+		return Anames[a]
+	}
+	for i := range aSpace {
+		as := &aSpace[i]
+		if as.lo <= a && int(a-as.lo) < len(as.names) {
+			return as.names[a-as.lo]
+		}
+	}
+	return fmt.Sprintf("A???%d", a)
+}
+
+var Anames = []string{
+	"XXX",
+	"CALL",
+	"DUFFCOPY",
+	"DUFFZERO",
+	"END",
+	"FUNCDATA",
+	"JMP",
+	"NOP",
+	"PCDATA",
+	"RET",
+	"TEXT",
+	"TYPE",
+	"UNDEF",
+	"USEFIELD",
+	"VARDEF",
+	"VARKILL",
+	"VARLIVE",
+}
+
+func Bool2int(b bool) int {
+	// The compiler currently only optimizes this form.
+	// See issue 6011.
+	var i int
+	if b {
+		i = 1
+	} else {
+		i = 0
+	}
+	return i
+}