// Special section indices.
type SectionIndex int

const (
	SHN_UNDEF     SectionIndex = 0      /* Undefined, missing, irrelevant. */
	SHN_LORESERVE SectionIndex = 0xff00 /* First of reserved range. */
	SHN_LOPROC    SectionIndex = 0xff00 /* First processor-specific. */
	SHN_HIPROC    SectionIndex = 0xff1f /* Last processor-specific. */
	SHN_LOOS      SectionIndex = 0xff20 /* First operating system-specific. */

	}

	off := len(elfstrdat)
	elfstrdat = append(elfstrdat, s...)
	elfstrdat = append(elfstrdat, 0)
	return off
}

func putelfsyment(out *OutBuf, off int, addr int64, size int64, info uint8, shndx elf.SectionIndex, other int) {
	if elf64 {
		out.Write32(uint32(off))
		out.Write8(info)
		out.Write8(uint8(other))
		out.Write16(uint16(shndx))
		out.Write64(uint64(addr))
		out.Write64(uint64(size))
		symSize += ELF64SYMSIZE

	shentsize uint32
	shnum     uint32
	shstrndx  uint32
}

type ElfSym struct {
	name  string
	value uint64
	size  uint64
	bind  elf.SymBind
	type_ elf.SymType
	other uint8
	shndx elf.SectionIndex
	sym   loader.Sym
}

const (
	TagFile               = 1
	TagCPUName            = 4
	TagCPURawName         = 5
	TagCompatibility      = 32
	TagNoDefaults         = 64

// A Symbol represents an entry in an ELF symbol table section.
type Symbol struct {
	Name        string
	Info, Other byte
	Section     SectionIndex
	Value, Size uint64

	// Version and Library are present only for the dynamic symbol
	// table.
	Version string
	Library string
}

/*
 * ELF reader
 */

/* For accessing the fields of st_other. */

/*
 * ELF header.
 */
type ElfEhdr elf.Header64

/*
 * Section header.
 */
type ElfShdr struct {
	elf.Section64
	shnum elf.SectionIndex
}

/*
 * Program header.
 */
type ElfPhdr elf.ProgHeader

/* For accessing the fields of r_info. */

/* For constructing r_info from field values. */

/*

		{"(R_X86_64).String", Method, 0},
		{"(Section).ReadAt", Method, 0},
		{"(SectionFlag).GoString", Method, 0},
		{"(SectionFlag).String", Method, 0},
		{"(SectionIndex).GoString", Method, 0},
		{"(SectionIndex).String", Method, 0},
		{"(SectionType).GoString", Method, 0},
		{"(SectionType).String", Method, 0},
		{"(SymBind).GoString", Method, 0},
		{"(SymBind).String", Method, 0},

pkg debug/elf, const SHN_ABS SectionIndex
pkg debug/elf, const SHN_COMMON SectionIndex
pkg debug/elf, const SHN_HIOS SectionIndex
pkg debug/elf, const SHN_HIPROC SectionIndex
pkg debug/elf, const SHN_HIRESERVE SectionIndex
pkg debug/elf, const SHN_LOOS SectionIndex
pkg debug/elf, const SHN_LOPROC SectionIndex
pkg debug/elf, const SHN_LORESERVE SectionIndex
pkg debug/elf, const SHN_UNDEF SectionIndex