// Copyright 2023 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 main

//line /tmp/_cgo_.go:1
//go:cgo_dynamic_linker "/elf/interp"
// ERROR MESSAGE: only allowed in cgo-generated code

	createHeadersOnce(t)

	f, err := elf.Open(libgoname)
	if err != nil {
		t.Fatalf("elf.Open failed: %v", err)
	}
	defer f.Close()

	ds := f.SectionByType(elf.SHT_DYNAMIC)
	if ds == nil {
		t.Fatalf("no SHT_DYNAMIC section")
	}
	d, err := ds.Data()
	if err != nil {
		t.Fatalf("can't read SHT_DYNAMIC contents: %v", err)
	}
	for len(d) > 0 {
		var tag elf.DynTag
		switch f.Class {

		return elfexec.FindTextProgHeader(ef), nil
	}

	// Fetch all the loadable segments.
	var phdrs []elf.ProgHeader
	for i := range ef.Progs {
		if ef.Progs[i].Type == elf.PT_LOAD {
			phdrs = append(phdrs, ef.Progs[i].ProgHeader)
		}
	}
	// Some ELF files don't contain any loadable program segments, e.g. .ko
	// kernel modules. It's not an error to have no header in such cases.

// THE SOFTWARE.

package ld

import (
	"bufio"
	"cmd/internal/objabi"
	"cmd/link/internal/loader"
	"cmd/link/internal/sym"
	"debug/elf"
	"fmt"
)

type Shlib struct {
	Path string
	Hash []byte
	Deps []string
	File *elf.File
}

// Link holds the context for writing object code from a compiler
// or for reading that input into the linker.
type Link struct {
	Target
	ErrorReporter

// Rather than calling this function directly, clients should typically use
// the DWARF method of the File type of the appropriate package [debug/elf],
// [debug/macho], or [debug/pe].
//
// The []byte arguments are the data from the corresponding debug section
// in the object file; for example, for an ELF object, abbrev is the contents of
// the ".debug_abbrev" section.

	flag.Var(&ctxt.BuildMode, "buildmode", "set build `mode`")
	flag.BoolVar(&ctxt.compressDWARF, "compressdwarf", true, "compress DWARF if possible")
	objabi.Flagfn1("B", "add an ELF NT_GNU_BUILD_ID `note` when using ELF; use \"gobuildid\" to generate it from the Go build ID", addbuildinfo)
	objabi.Flagfn1("L", "add specified `directory` to library path", func(a string) { Lflag(ctxt, a) })
	objabi.AddVersionFlag() // -V

		{Address: 0x40101d, EndSequence: true},
	}
	files := [][]*LineFile{{file}}

	testLineTable(t, want, files, elfData(t, "testdata/rnglistx.elf"))
}

func TestLineSeek(t *testing.T) {
	d := elfData(t, "testdata/line-gcc.elf")

	// Get the line table for the first CU.
	cu, err := d.Reader().Next()
	if err != nil {
		t.Fatal("d.Reader().Next:", err)
	}
	lr, err := d.LineReader(cu)

	goimporterMagic = "\n$$ "
	archiveMagic    = "!<ar"
	aixbigafMagic   = "<big"
)

// Opens the export data file at the given path. If this is an ELF file,
// searches for and opens the .go_export section. If this is an archive,
// reads the export data from the first member, which is assumed to be an ELF file.
// This is intended to replicate the logic in gofrontend.
func openExportFile(fpath string) (reader io.ReadSeeker, closer io.Closer, err error) {

// Copyright 2009 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.

/*
Linux ELF:
gcc -gdwarf-2 -m64 -c typedef.c && gcc -gdwarf-2 -m64 -o typedef.elf typedef.o

OS X Mach-O:
gcc -gdwarf-2 -m64 -c typedef.c -o typedef.macho
gcc -gdwarf-4 -m64 -c typedef.c -o typedef.macho4
*/
#include <complex.h>

typedef volatile int* t_ptr_volatile_int;

		PEreloc1:         pereloc1,
		TLSIEtoLE:        tlsIEtoLE,

		ELF: ld.ELFArch{
			Linuxdynld:     "/lib64/ld-linux-x86-64.so.2",
			LinuxdynldMusl: "/lib/ld-musl-x86_64.so.1",
			Freebsddynld:   "/libexec/ld-elf.so.1",
			Openbsddynld:   "/usr/libexec/ld.so",
			Netbsddynld:    "/libexec/ld.elf_so",
			Dragonflydynld: "/usr/libexec/ld-elf.so.2",
			Solarisdynld:   "/lib/amd64/ld.so.1",

			Reloc1:    elfreloc1,