rss-tools @ a5ac52722b131734c74504b6e6f4d9900536cac7

// 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

}