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4d4692e1b0
Fixes golang/go#67839 Change-Id: I3af38d21159f7cac3786b49ac17657d314fbc178 Reviewed-on: https://go-review.googlesource.com/c/sys/+/644295 Reviewed-by: Tobias Klauser <tobias.klauser@gmail.com> LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Reviewed-by: Carlos Amedee <carlos@golang.org> Reviewed-by: Ian Lance Taylor <iant@google.com> Auto-Submit: Ian Lance Taylor <iant@google.com>
37 lines
1020 B
Go
37 lines
1020 B
Go
// Copyright 2025 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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//go:build go1.21 && (aix || darwin || dragonfly || freebsd || linux || netbsd || openbsd || solaris || zos)
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package unix
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import (
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"syscall"
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"unsafe"
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)
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//go:linkname runtime_getAuxv runtime.getAuxv
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func runtime_getAuxv() []uintptr
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// Auxv returns the ELF auxiliary vector as a sequence of key/value pairs.
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// The returned slice is always a fresh copy, owned by the caller.
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// It returns an error on non-ELF platforms, or if the auxiliary vector cannot be accessed,
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// which happens in some locked-down environments and build modes.
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func Auxv() ([][2]uintptr, error) {
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vec := runtime_getAuxv()
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vecLen := len(vec)
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if vecLen == 0 {
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return nil, syscall.ENOENT
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}
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if vecLen%2 != 0 {
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return nil, syscall.EINVAL
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}
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result := make([]uintptr, vecLen)
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copy(result, vec)
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return unsafe.Slice((*[2]uintptr)(unsafe.Pointer(&result[0])), vecLen/2), nil
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}
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