startup, and _cgo_thread_start to a gcc-compiled function that can be
used to create a new thread, in place of the runtime's usual direct
system calls.

Internal and External Linking

The text above describes "internal" linking, in which cmd/link parses and
links host object files (ELF, Mach-O, PE, and so on) into the final
executable itself. Keeping cmd/link simple means we cannot possibly

const (
	// Mode constants from the USTAR spec:
	// See http://pubs.opengroup.org/onlinepubs/9699919799/utilities/pax.html#tag_20_92_13_06
	c_ISUID = 04000 // Set uid
	c_ISGID = 02000 // Set gid
	c_ISVTX = 01000 // Save text (sticky bit)

	// Common Unix mode constants; these are not defined in any common tar standard.
	// Header.FileInfo understands these, but FileInfoHeader will never produce these.
	c_ISDIR  = 040000  // Directory

// imaginary parts.
type complex128 complex128

// string is the set of all strings of 8-bit bytes, conventionally but not
// necessarily representing UTF-8-encoded text. A string may be empty, but
// not nil. Values of string type are immutable.
type string string

// int is a signed integer type that is at least 32 bits in size. It is a

}

func (w *Walker) collectDeprecated() {
	isDeprecated := func(doc *ast.CommentGroup) bool {
		if doc != nil {
			for _, c := range doc.List {
				if strings.HasPrefix(c.Text, "// Deprecated:") {
					return true
				}
			}
		}
		return false
	}

	w.deprecated = make(map[token.Pos]bool)
	mark := func(id *ast.Ident) {
		if id != nil {

// Copyright 2019 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.

#include "../../../../../runtime/textflag.h"

TEXT asmtest(SB),DUPOK|NOSPLIT,$0
start:
	// Unprivileged ISA

	// 2.4: Integer Computational Instructions

	ADDI	$2047, X5				// 9382f27f
	ADDI	$-2048, X5				// 93820280
	ADDI	$2048, X5				// 9382024093820240