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2f33fe86f5
* Update dependencies and build to go1.22 * Fix api changes wrt to dependencies * Update golangci config
41 lines
980 B
Go
41 lines
980 B
Go
// Copyright 2023 The Libc 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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//go:build !(linux && amd64)
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package libc // import "modernc.org/libc"
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import (
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"fmt"
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"unsafe"
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)
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// Byte loads are atomic on this CPU.
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func a_load_8(addr uintptr) uint32 {
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return uint32(*(*byte)(unsafe.Pointer(addr)))
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}
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// int16 loads are atomic on this CPU when properly aligned.
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func a_load_16(addr uintptr) uint32 {
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if addr&1 != 0 {
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panic(fmt.Errorf("unaligned atomic 16 bit access at %#0x", addr))
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}
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return uint32(*(*uint16)(unsafe.Pointer(addr)))
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}
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// Byte sores are atomic on this CPU.
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func a_store_8(addr uintptr, b byte) {
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*(*byte)(unsafe.Pointer(addr)) = b
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}
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// int16 stores are atomic on this CPU when properly aligned.
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func a_store_16(addr uintptr, n uint16) {
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if addr&1 != 0 {
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panic(fmt.Errorf("unaligned atomic 16 bit access at %#0x", addr))
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}
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*(*uint16)(unsafe.Pointer(addr)) = n
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}
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