return nil, err
		}
	}
}

// elfFromAr tries to get export data from an archive member as an ELF file.
// If there is no export data, this returns nil, nil.
func elfFromAr(member *io.SectionReader) (io.ReadSeeker, error) {
	ef, err := elf.NewFile(member)
	if err != nil {
		return nil, err
	}
	sec := ef.Section(".go_export")
	if sec == nil {
		return nil, nil
	}
	return sec.Open(), nil
}

type File interface {
	io.Reader
	io.ReaderAt
	io.Seeker
	io.Closer
}

// helper types to turn a []byte into a File

type sectionReadCloser struct {
	*io.SectionReader
	io.Closer
}

func (rc sectionReadCloser) Close() error {
	if rc.Closer != nil {
		return rc.Closer.Close()
	}
	return nil

pkg go/version, func Compare(string, string) int #62039
pkg go/version, func IsValid(string) bool #62039
pkg go/version, func Lang(string) string #62039
pkg html/template, const ErrJSTemplate //deprecated #61619
pkg io, method (*SectionReader) Outer() (ReaderAt, int64, int64) #61870
pkg log/slog, func SetLogLoggerLevel(Level) Level #62418
pkg math/big, method (*Rat) FloatPrec() (int, bool) #50489
pkg math/rand/v2, func ExpFloat64() float64 #61716

type File struct {
	FileHeader
	Sections  []*Section
	Progs     []*Prog
	closer    io.Closer
	gnuNeed   []verneed
	gnuVersym []byte
}

// A SectionHeader represents a single ELF section header.
type SectionHeader struct {
	Name      string
	Type      SectionType
	Flags     SectionFlag
	Addr      uint64
	Offset    uint64
	Size      uint64
	Link      uint32
	Info      uint32

	"io"
	"os"
	"strings"
)

// SectionHeader holds information about an XCOFF section header.
type SectionHeader struct {
	Name           string
	VirtualAddress uint64
	Size           uint64
	Type           uint32
	Relptr         uint64
	Nreloc         uint32
}

type Section struct {
	SectionHeader
	Relocs []Reloc
	io.ReaderAt
	sr *io.SectionReader
}

			brOff, brErr := br.Seek(offset, whence)
			srOff, srErr := sr.Seek(offset, whence)
			if (brErr != nil) != (srErr != nil) || brOff != srOff {
				t.Errorf("For whence %d, offset %d: bytes.Reader.Seek = (%v, %v) != SectionReader.Seek = (%v, %v)",
					whence, offset, brOff, brErr, srErr, srOff)
			}
		}
	}

	// And verify we can just seek past the end and get an EOF
	got, err := sr.Seek(100, SeekStart)

		{"SectionFlag", Type, 0},
		{"SectionHeader", Type, 0},
		{"SectionHeader.Addr", Field, 0},
		{"SectionHeader.Addralign", Field, 0},
		{"SectionHeader.Entsize", Field, 0},
		{"SectionHeader.FileSize", Field, 6},
		{"SectionHeader.Flags", Field, 0},
		{"SectionHeader.Info", Field, 0},
		{"SectionHeader.Link", Field, 0},
		{"SectionHeader.Name", Field, 0},
		{"SectionHeader.Offset", Field, 0},

package plan9obj

import (
	"reflect"
	"testing"
)

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

var fileTests = []fileTest{
	{
		"testdata/386-plan9-exec",
		FileHeader{Magic386, 0x324, 0x14, 4, 0x1000, 32},
		[]*SectionHeader{
			{"text", 0x4c5f, 0x20},
			{"data", 0x94c, 0x4c7f},
			{"syms", 0x2c2b, 0x55cb},
			{"spsz", 0x0, 0x81f6},
			{"pcsz", 0xf7a, 0x81f6},

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},
		[]*SectionHeader{
			{".text", 0x10000290, 0x00000bbd, STYP_TEXT, 0x7ae6, 0x36},
			{".data", 0x20000e4d, 0x00000437, STYP_DATA, 0x7d02, 0x2b},

package macho

import (
	"bytes"
	"internal/obscuretestdata"
	"io"
	"reflect"
	"testing"
)

type fileTest struct {
	file        string
	hdr         FileHeader
	loads       []any
	sections    []*SectionHeader
	relocations map[string][]Reloc
}

var fileTests = []fileTest{
	{
		"testdata/gcc-386-darwin-exec.base64",
		FileHeader{0xfeedface, Cpu386, 0x3, 0x2, 0xc, 0x3c0, 0x85},
		[]any{