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Diffstat (limited to 'vendor/golang.org/x/sys/unix/auxv.go')
-rw-r--r-- | vendor/golang.org/x/sys/unix/auxv.go | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/vendor/golang.org/x/sys/unix/auxv.go b/vendor/golang.org/x/sys/unix/auxv.go new file mode 100644 index 000000000..37a82528f --- /dev/null +++ b/vendor/golang.org/x/sys/unix/auxv.go @@ -0,0 +1,36 @@ +// Copyright 2025 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. + +//go:build go1.21 && (aix || darwin || dragonfly || freebsd || linux || netbsd || openbsd || solaris || zos) + +package unix + +import ( + "syscall" + "unsafe" +) + +//go:linkname runtime_getAuxv runtime.getAuxv +func runtime_getAuxv() []uintptr + +// Auxv returns the ELF auxiliary vector as a sequence of key/value pairs. +// The returned slice is always a fresh copy, owned by the caller. +// It returns an error on non-ELF platforms, or if the auxiliary vector cannot be accessed, +// which happens in some locked-down environments and build modes. +func Auxv() ([][2]uintptr, error) { + vec := runtime_getAuxv() + vecLen := len(vec) + + if vecLen == 0 { + return nil, syscall.ENOENT + } + + if vecLen%2 != 0 { + return nil, syscall.EINVAL + } + + result := make([]uintptr, vecLen) + copy(result, vec) + return unsafe.Slice((*[2]uintptr)(unsafe.Pointer(&result[0])), vecLen/2), nil +} |