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114 lines
2.0 KiB
Go
114 lines
2.0 KiB
Go
// Copyright 2021 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package pkgbits
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import (
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"fmt"
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"strings"
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)
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// fmtFrames formats a backtrace for reporting reader/writer desyncs.
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func fmtFrames(pcs ...uintptr) []string {
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res := make([]string, 0, len(pcs))
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walkFrames(pcs, func(file string, line int, name string, offset uintptr) {
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// Trim package from function name. It's just redundant noise.
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name = strings.TrimPrefix(name, "cmd/compile/internal/noder.")
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res = append(res, fmt.Sprintf("%s:%v: %s +0x%v", file, line, name, offset))
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})
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return res
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}
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type frameVisitor func(file string, line int, name string, offset uintptr)
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// SyncMarker is an enum type that represents markers that may be
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// written to export data to ensure the reader and writer stay
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// synchronized.
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type SyncMarker int
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//go:generate stringer -type=SyncMarker -trimprefix=Sync
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const (
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_ SyncMarker = iota
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// Public markers (known to go/types importers).
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// Low-level coding markers.
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SyncEOF
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SyncBool
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SyncInt64
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SyncUint64
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SyncString
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SyncValue
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SyncVal
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SyncRelocs
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SyncReloc
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SyncUseReloc
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// Higher-level object and type markers.
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SyncPublic
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SyncPos
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SyncPosBase
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SyncObject
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SyncObject1
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SyncPkg
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SyncPkgDef
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SyncMethod
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SyncType
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SyncTypeIdx
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SyncTypeParamNames
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SyncSignature
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SyncParams
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SyncParam
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SyncCodeObj
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SyncSym
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SyncLocalIdent
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SyncSelector
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// Private markers (only known to cmd/compile).
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SyncPrivate
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SyncFuncExt
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SyncVarExt
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SyncTypeExt
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SyncPragma
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SyncExprList
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SyncExprs
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SyncExpr
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SyncExprType
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SyncAssign
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SyncOp
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SyncFuncLit
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SyncCompLit
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SyncDecl
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SyncFuncBody
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SyncOpenScope
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SyncCloseScope
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SyncCloseAnotherScope
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SyncDeclNames
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SyncDeclName
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SyncStmts
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SyncBlockStmt
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SyncIfStmt
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SyncForStmt
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SyncSwitchStmt
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SyncRangeStmt
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SyncCaseClause
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SyncCommClause
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SyncSelectStmt
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SyncDecls
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SyncLabeledStmt
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SyncUseObjLocal
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SyncAddLocal
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SyncLinkname
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SyncStmt1
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SyncStmtsEnd
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SyncLabel
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SyncOptLabel
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)
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