ctxt.domacho()
	}
	if ctxt.IsWindows() {
		bench.Start("dope")
		ctxt.dope()
		bench.Start("windynrelocsyms")
		ctxt.windynrelocsyms()
	}
	if ctxt.IsAIX() {
		bench.Start("doxcoff")
		ctxt.doxcoff()
	}

	bench.Start("textbuildid")
	ctxt.textbuildid()
	bench.Start("addexport")
	ctxt.setArchSyms()
	ctxt.addexport()
	bench.Start("Gentext")

	"sync"

	"cmd/internal/objabi"
	"cmd/link/internal/loader"
	"cmd/link/internal/sym"
)

// This file handles all algorithms related to XCOFF files generation.
// Most of them are adaptations of the ones in  cmd/link/internal/pe.go
// as PE and XCOFF are based on COFF files.
// XCOFF files generated are 64 bits.

const (
	// Total amount of space to reserve at the start of the file

	case xcoff.STYP_DWARF, xcoff.STYP_DEBUG:
		return sym.Sxxx, ""
	case xcoff.STYP_DATA, xcoff.STYP_BSS, xcoff.STYP_TEXT:
	}

	switch s.StorageClass {
	default:
		return sym.Sxxx, fmt.Sprintf("getSymbolType for Storage class 0x%x not implemented", s.StorageClass)
	case xcoff.C_HIDEXT, xcoff.C_EXT, xcoff.C_WEAKEXT:
		switch s.AuxCSect.StorageMappingClass {
		default:

// license that can be found in the LICENSE file.

// Parsing of XCOFF executable (AIX)

package objfile

import (
	"debug/dwarf"
	"fmt"
	"internal/xcoff"
	"io"
	"unicode"
)

type xcoffFile struct {
	xcoff *xcoff.File
}

func openXcoff(r io.ReaderAt) (rawFile, error) {
	f, err := xcoff.NewFile(r)
	if err != nil {
		return nil, err
	}
	return &xcoffFile{f}, nil
}

	Fflags   uint16 // Flags
	Fnsyms   uint32 // Number of entries in symbol table
}

const (
	FILHSZ_32 = 20
	FILHSZ_64 = 24
)
const (
	U802TOCMAGIC = 0737 // AIX 32-bit XCOFF
	U64_TOCMAGIC = 0767 // AIX 64-bit XCOFF
)

// Flags that describe the type of the object file.
const (
	F_RELFLG    = 0x0001
	F_EXEC      = 0x0002
	F_LNNO      = 0x0004
	F_FDPR_PROF = 0x0010
	F_FDPR_OPTI = 0x0020

				return "", err
			}
			nameSize := int(byteOrder.Uint32(buf[0:]))
			descSize := int(byteOrder.Uint32(buf[4:]))
			noteType := int(byteOrder.Uint32(buf[8:]))
			descOff := off + int64(12+(nameSize+3)&^3)
			off = descOff + int64((descSize+3)&^3)
			if nameSize != 4 || noteType != 3 || buf[12] != 'G' || buf[13] != 'N' || buf[14] != 'U' || buf[15] != '\x00' { // want name GNU\x00 type 3 (NT_GNU_BUILD_ID)
				continue
			}

// license that can be found in the LICENSE file.

// Package xcoff implements access to XCOFF (Extended Common Object File Format) files.
package xcoff

import (
	"debug/dwarf"
	"encoding/binary"
	"errors"
	"fmt"
	"internal/saferio"
	"io"
	"os"
	"strings"
)

// SectionHeader holds information about an XCOFF section header.
type SectionHeader struct {
	Name           string

package ssa_test

import (
	cmddwarf "cmd/internal/dwarf"
	"cmd/internal/quoted"
	"debug/dwarf"
	"debug/elf"
	"debug/macho"
	"debug/pe"
	"fmt"
	"internal/platform"
	"internal/testenv"
	"internal/xcoff"
	"io"
	"os"
	"runtime"
	"sort"
	"testing"
)

func open(path string) (*dwarf.Data, error) {
	if fh, err := elf.Open(path); err == nil {
		return fh.DWARF()
	}

			off, decOff, firstPart, decryptSkip, seqNum = getCompressedOffsets(oi, off, decrypt)
			decLength = length
			length = oi.Size - off
			// For negative length we read everything.
			if decLength < 0 {
				decLength = actualSize - decOff
			}

			// Reply back invalid range if the input offset and length fall out of range.
			if decOff > actualSize || decOff+decLength > actualSize {

// Copyright 2018 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.

package xcoff

import (
	"reflect"
	"testing"
)

type fileTest struct {
	file     string
	hdr      FileHeader
	sections []*SectionHeader
	needed   []string
}

var fileTests = []fileTest{
	{
		"testdata/gcc-ppc32-aix-dwarf2-exec",
		FileHeader{U802TOCMAGIC},