// 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
}

	"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

	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

	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.

// 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()
	}

		if ok && seg.Addr != 0 && seg.Filesz != 0 && seg.Prot == RW && seg.Maxprot == RW {
			return seg.Addr, seg.Memsz
		}
	}
	return 0, 0
}

// xcoffExe is the XCOFF (AIX eXtended COFF) implementation of the exe interface.
type xcoffExe struct {
	f *xcoff.File
}

func (x *xcoffExe) ReadData(addr, size uint64) ([]byte, error) {
	for _, sect := range x.f.Sections {

// 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},

// Package gccgoimporter implements Import for gccgo-generated object files.
package gccgoimporter // import "go/internal/gccgoimporter"

import (
	"bytes"
	"debug/elf"
	"fmt"
	"go/types"
	"internal/xcoff"
	"io"
	"os"
	"path/filepath"
	"strings"
)

// A PackageInit describes an imported package that needs initialization.
type PackageInit struct {
	Name     string // short package name

// 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 (
	"encoding/binary"
	"fmt"
	"io"
	"os"
	"strconv"
	"strings"
)

const (
	SAIAMAG   = 0x8
	AIAFMAG   = "`\n"
	AIAMAG    = "<aiaff>\n"
	AIAMAGBIG = "<bigaf>\n"

	// Sizeof
	FL_HSZ_BIG = 0x80
	AR_HSZ_BIG = 0x70
)