pkg debug/elf, const PT_OPENBSD_NOBTCFI = 1705237480 #66054
pkg debug/elf, const PT_OPENBSD_NOBTCFI ProgType #66054
pkg debug/elf, const STT_GNU_IFUNC = 10 #66836
pkg debug/elf, const STT_GNU_IFUNC SymType #66836
pkg debug/elf, const STT_RELC = 8 #66836
pkg debug/elf, const STT_RELC SymType #66836
pkg debug/elf, const STT_SRELC = 9 #66836
pkg debug/elf, const STT_SRELC SymType #66836

				out.Write32(uint32(elf.R_ARM_CALL) | uint32(elfsym)<<8)
			} else {
				out.Write32(uint32(elf.R_ARM_JUMP24) | uint32(elfsym)<<8)
			}
		} else {
			return false
		}
	case objabi.R_TLS_LE:
		out.Write32(uint32(elf.R_ARM_TLS_LE32) | uint32(elfsym)<<8)
	case objabi.R_TLS_IE:
		out.Write32(uint32(elf.R_ARM_TLS_IE32) | uint32(elfsym)<<8)
	case objabi.R_GOTPCREL:

package main

import (
	"bytes"
	"debug/elf"
	"fmt"
	"os"
)

func main() {
	f, err := elf.Open("/proc/self/exe")
	if err != nil {
		if os.IsNotExist(err) {
			return
		}
		fmt.Fprintln(os.Stderr, "opening /proc/self/exe:", err)
		os.Exit(1)
	}

	c := 0
	fail := false
	for i, s := range f.Sections {
		if s.Type != elf.SHT_NOTE {
			continue
		}

		d, err := s.Data()

				out.Write64(uint64(elf.R_X86_64_PLT32) | uint64(elfsym)<<32)
			} else {
				out.Write64(uint64(elf.R_X86_64_PC32) | uint64(elfsym)<<32)
			}
		} else {
			return false
		}
	case objabi.R_GOTPCREL:
		if siz == 4 {
			out.Write64(uint64(elf.R_X86_64_GOTPCREL) | uint64(elfsym)<<32)
		} else {
			return false
		}
	}

	f.Close()
	return tab
}

func crack(file string, t *testing.T) (*elf.File, *Table) {
	// Open self
	f, err := elf.Open(file)
	if err != nil {
		t.Fatal(err)
	}
	return parse(file, f, t)
}

func parse(file string, f *elf.File, t *testing.T) (*elf.File, *Table) {
	s := f.Section(".gosymtab")
	if s == nil {
		t.Skip("no .gosymtab section")
	}
	symdat, err := s.Data()
	if err != nil {

// one.

import (
	"bytes"
	"debug/elf"
	"os"
	"testing"
)

func testBuildID(t *testing.T) {
	f, err := elf.Open("/proc/self/exe")
	if err != nil {
		if os.IsNotExist(err) {
			t.Skip("no /proc/self/exe")
		}
		t.Fatal("opening /proc/self/exe: ", err)
	}
	defer f.Close()

	c := 0
sections:
	for i, s := range f.Sections {
		if s.Type != elf.SHT_NOTE {
			continue
		}

	}
}

func hasDynTag(f *elf.File, tag elf.DynTag) bool {
	ds := f.SectionByType(elf.SHT_DYNAMIC)
	if ds == nil {
		return false
	}
	d, err := ds.Data()
	if err != nil {
		return false
	}
	for len(d) > 0 {
		var t elf.DynTag
		switch f.Class {
		case elf.ELFCLASS32:
			t = elf.DynTag(f.ByteOrder.Uint32(d[0:4]))
			d = d[8:]
		case elf.ELFCLASS64:

		{0x10, nil},
		{0x400611, nil},
	}
	testRanges(t, "testdata/line-gcc.elf", want)

	want = []wantRange{
		{0x401122, [][2]uint64{{0x401122, 0x401166}}},
		{0x401165, [][2]uint64{{0x401122, 0x401166}}},
		{0x401166, [][2]uint64{{0x401166, 0x401179}}},
	}
	testRanges(t, "testdata/line-gcc-dwarf5.elf", want)

	want = []wantRange{
		{0x401130, [][2]uint64{{0x401130, 0x40117e}}},

		case ".strtab":
			want = elf.SHT_STRTAB
		case ".init_array":
			want = elf.SHT_INIT_ARRAY
		case ".fini_array":
			want = elf.SHT_FINI_ARRAY
		case ".preinit_array":
			want = elf.SHT_PREINIT_ARRAY
		}
		if want != elf.SHT_NULL && sec.Type != want {
			t.Errorf("%s: incorrect section type in elf file at %d for section %q: got %v want %v", arname, off, sec.Name, sec.Type, want)
		}
	}
}

into an executable binary.

# Command Line

Usage:

	go tool link [flags] main.a

Flags:

	-B note
		Add an ELF_NT_GNU_BUILD_ID note when using ELF.
		The value should start with 0x and be an even number of hex digits.
		Alternatively, you can pass "gobuildid" in order to derive the
		GNU build ID from the Go build ID.
	-E entry
		Set entry symbol name.
	-H type