elf.go

/*
 * ELF constants and data structures
 *
 * Derived from:
 * $FreeBSD: src/sys/sys/elf32.h,v 1.8.14.1 2005/12/30 22:13:58 marcel Exp $
 * $FreeBSD: src/sys/sys/elf64.h,v 1.10.14.1 2005/12/30 22:13:58 marcel Exp $
 * $FreeBSD: src/sys/sys/elf_common.h,v 1.15.8.1 2005/12/30 22:13:58 marcel Exp $
 * $FreeBSD: src/sys/alpha/include/elf.h,v 1.14 2003/09/25 01:10:22 peter Exp $
 * $FreeBSD: src/sys/amd64/include/elf.h,v 1.18 2004/08/03 08:21:48 dfr Exp $
 * $FreeBSD: src/sys/arm/include/elf.h,v 1.5.2.1 2006/06/30 21:42:52 cognet Exp $
 * $FreeBSD: src/sys/i386/include/elf.h,v 1.16 2004/08/02 19:12:17 dfr Exp $
 * $FreeBSD: src/sys/powerpc/include/elf.h,v 1.7 2004/11/02 09:47:01 ssouhlal Exp $
 * $FreeBSD: src/sys/sparc64/include/elf.h,v 1.12 2003/09/25 01:10:26 peter Exp $
 *
 * Copyright (c) 1996-1998 John D. Polstra.  All rights reserved.
 * Copyright (c) 2001 David E. O'Brien
 * Portions Copyright 2009 The Go Authors.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

package elf

import "strconv"

/*
 * Constants
 */

// Indexes into the Header.Ident array.
const (
	EI_CLASS =	4;	/* Class of machine. */
	EI_DATA =		5;	/* Data format. */
	EI_VERSION =	6;	/* ELF format version. */
	EI_OSABI =	7;	/* Operating system / ABI identification */
	EI_ABIVERSION =	8;	/* ABI version */
	EI_PAD =		9;	/* Start of padding (per SVR4 ABI). */
	EI_NIDENT =	16;	/* Size of e_ident array. */
)

// Initial magic number for ELF files.
const ELFMAG =		"\177ELF"

// Version is found in Header.Ident[EI_VERSION] and Header.Version.
type Version byte
const (
	EV_NONE Version =		0;
	EV_CURRENT Version =	1;
)
var versionStrings = []intName {
	intName{ 0, "EV_NONE" },
	intName{ 1, "EV_CURRENT" },
}
func (i Version) String() string {
	return stringName(uint32(i), versionStrings, false)
}
func (i Version) GoString() string {
	return stringName(uint32(i), versionStrings, true)
}

// Class is found in Header.Ident[EI_CLASS] and Header.Class.
type Class byte
const (
	ELFCLASSNONE Class =	0;	/* Unknown class. */
	ELFCLASS32 Class =	1;	/* 32-bit architecture. */
	ELFCLASS64 Class =	2;	/* 64-bit architecture. */
)
var classStrings = []intName {
	intName{ 0, "ELFCLASSNONE" },
	intName{ 1, "ELFCLASS32" },
	intName{ 2, "ELFCLASS64" },
}
func (i Class) String() string {
	return stringName(uint32(i), classStrings, false)
}
func (i Class) GoString() string {
	return stringName(uint32(i), classStrings, true)
}

// Data is found in Header.Ident[EI_DATA] and Header.Data.
type Data byte
const (
	ELFDATANONE Data =	0;	/* Unknown data format. */
	ELFDATA2LSB Data =	1;	/* 2's complement little-endian. */
	ELFDATA2MSB Data =	2;	/* 2's complement big-endian. */
)
var dataStrings = []intName {
	intName{ 0, "ELFDATANONE" },
	intName{ 1, "ELFDATA2LSB" },
	intName{ 2, "ELFDATA2MSB" },
}
func (i Data) String() string {
	return stringName(uint32(i), dataStrings, false)
}
func (i Data) GoString() string {
	return stringName(uint32(i), dataStrings, true)
}

// OSABI is found in Header.Ident[EI_OSABI] and Header.OSABI.
type OSABI byte
const (
	ELFOSABI_NONE OSABI =		0;	/* UNIX System V ABI */
	ELFOSABI_HPUX OSABI =		1;	/* HP-UX operating system */
	ELFOSABI_NETBSD OSABI =		2;	/* NetBSD */
	ELFOSABI_LINUX OSABI =		3;	/* GNU/Linux */
	ELFOSABI_HURD OSABI =		4;	/* GNU/Hurd */
	ELFOSABI_86OPEN OSABI =		5;	/* 86Open common IA32 ABI */
	ELFOSABI_SOLARIS OSABI =	6;	/* Solaris */
	ELFOSABI_AIX OSABI =		7;	/* AIX */
	ELFOSABI_IRIX OSABI =		8;	/* IRIX */
	ELFOSABI_FREEBSD OSABI =	9;	/* FreeBSD */
	ELFOSABI_TRU64 OSABI =		10;	/* TRU64 UNIX */
	ELFOSABI_MODESTO OSABI =	11;	/* Novell Modesto */
	ELFOSABI_OPENBSD OSABI =	12;	/* OpenBSD */
	ELFOSABI_OPENVMS OSABI =	13;	/* Open VMS */
	ELFOSABI_NSK OSABI =		14;	/* HP Non-Stop Kernel */
	ELFOSABI_ARM OSABI =		97;	/* ARM */
	ELFOSABI_STANDALONE OSABI =	255;	/* Standalone (embedded) application */
)
var osabiStrings = []intName {
	intName{ 0, "ELFOSABI_NONE" },
	intName{ 1, "ELFOSABI_HPUX" },
	intName{ 2, "ELFOSABI_NETBSD" },
	intName{ 3, "ELFOSABI_LINUX" },
	intName{ 4, "ELFOSABI_HURD" },
	intName{ 5, "ELFOSABI_86OPEN" },
	intName{ 6, "ELFOSABI_SOLARIS" },
	intName{ 7, "ELFOSABI_AIX" },
	intName{ 8, "ELFOSABI_IRIX" },
	intName{ 9, "ELFOSABI_FREEBSD" },
	intName{ 10, "ELFOSABI_TRU64" },
	intName{ 11, "ELFOSABI_MODESTO" },
	intName{ 12, "ELFOSABI_OPENBSD" },
	intName{ 13, "ELFOSABI_OPENVMS" },
	intName{ 14, "ELFOSABI_NSK" },
	intName{ 97, "ELFOSABI_ARM" },
	intName{ 255, "ELFOSABI_STANDALONE" },
}
func (i OSABI) String() string {
	return stringName(uint32(i), osabiStrings, false)
}
func (i OSABI) GoString() string {
	return stringName(uint32(i), osabiStrings, true)
}

// Type is found in Header.Type.
type Type uint16
const (
	ET_NONE Type =		0;	/* Unknown type. */
	ET_REL Type =		1;	/* Relocatable. */
	ET_EXEC Type =		2;	/* Executable. */
	ET_DYN Type =		3;	/* Shared object. */
	ET_CORE Type =		4;	/* Core file. */
	ET_LOOS Type =		0xfe00;	/* First operating system specific. */
	ET_HIOS Type =		0xfeff;	/* Last operating system-specific. */
	ET_LOPROC Type =	0xff00;	/* First processor-specific. */
	ET_HIPROC Type =	0xffff;	/* Last processor-specific. */
)
var typeStrings = []intName{
	intName{ 0, "ET_NONE" },
	intName{ 1, "ET_REL" },
	intName{ 2, "ET_EXEC" },
	intName{ 3, "ET_DYN" },
	intName{ 4, "ET_CORE" },
	intName{ 0xfe00, "ET_LOOS" },
	intName{ 0xfeff, "ET_HIOS" },
	intName{ 0xff00, "ET_LOPROC" },
	intName{ 0xffff, "ET_HIPROC" },
}
func (i Type) String() string {
	return stringName(uint32(i), typeStrings, false)
}
func (i Type) GoString() string {
	return stringName(uint32(i), typeStrings, true)
}

// Machine is found in Header.Machine.
type Machine uint16
const (
	EM_NONE Machine =		0;	/* Unknown machine. */
	EM_M32 Machine =		1;	/* AT&T WE32100. */
	EM_SPARC Machine =	2;	/* Sun SPARC. */
	EM_386 Machine =		3;	/* Intel i386. */
	EM_68K Machine =		4;	/* Motorola 68000. */
	EM_88K Machine =		5;	/* Motorola 88000. */
	EM_860 Machine =		7;	/* Intel i860. */
	EM_MIPS Machine =		8;	/* MIPS R3000 Big-Endian only. */
	EM_S370 Machine =		9;	/* IBM System/370. */
	EM_MIPS_RS3_LE Machine =	10;	/* MIPS R3000 Little-Endian. */
	EM_PARISC Machine =	15;	/* HP PA-RISC. */
	EM_VPP500 Machine =	17;	/* Fujitsu VPP500. */
	EM_SPARC32PLUS Machine =	18;	/* SPARC v8plus. */
	EM_960 Machine =		19;	/* Intel 80960. */
	EM_PPC Machine =		20;	/* PowerPC 32-bit. */
	EM_PPC64 Machine =	21;	/* PowerPC 64-bit. */
	EM_S390 Machine =		22;	/* IBM System/390. */
	EM_V800 Machine =		36;	/* NEC V800. */
	EM_FR20 Machine =		37;	/* Fujitsu FR20. */
	EM_RH32 Machine =		38;	/* TRW RH-32. */
	EM_RCE Machine =		39;	/* Motorola RCE. */
	EM_ARM Machine =		40;	/* ARM. */
	EM_SH Machine =		42;	/* Hitachi SH. */
	EM_SPARCV9 Machine =	43;	/* SPARC v9 64-bit. */
	EM_TRICORE Machine =	44;	/* Siemens TriCore embedded processor. */
	EM_ARC Machine =		45;	/* Argonaut RISC Core. */
	EM_H8_300 Machine =	46;	/* Hitachi H8/300. */
	EM_H8_300H Machine =	47;	/* Hitachi H8/300H. */
	EM_H8S Machine =		48;	/* Hitachi H8S. */
	EM_H8_500 Machine =	49;	/* Hitachi H8/500. */
	EM_IA_64 Machine =	50;	/* Intel IA-64 Processor. */
	EM_MIPS_X Machine =	51;	/* Stanford MIPS-X. */
	EM_COLDFIRE Machine =	52;	/* Motorola ColdFire. */
	EM_68HC12 Machine =	53;	/* Motorola M68HC12. */
	EM_MMA Machine =		54;	/* Fujitsu MMA. */
	EM_PCP Machine =		55;	/* Siemens PCP. */
	EM_NCPU Machine =		56;	/* Sony nCPU. */
	EM_NDR1 Machine =		57;	/* Denso NDR1 microprocessor. */
	EM_STARCORE Machine =	58;	/* Motorola Star*Core processor. */
	EM_ME16 Machine =		59;	/* Toyota ME16 processor. */
	EM_ST100 Machine =	60;	/* STMicroelectronics ST100 processor. */
	EM_TINYJ Machine =	61;	/* Advanced Logic Corp. TinyJ processor. */
	EM_X86_64 Machine =	62;	/* Advanced Micro Devices x86-64 */

	/* Non-standard or deprecated. */
	EM_486 Machine =		6;	/* Intel i486. */
	EM_MIPS_RS4_BE Machine =	10;	/* MIPS R4000 Big-Endian */
	EM_ALPHA_STD Machine =	41;	/* Digital Alpha (standard value). */
	EM_ALPHA Machine =	0x9026;	/* Alpha (written in the absence of an ABI) */
)
var machineStrings = []intName {
	intName{ 0, "EM_NONE" },
	intName{ 1, "EM_M32" },
	intName{ 2, "EM_SPARC" },
	intName{ 3, "EM_386" },
	intName{ 4, "EM_68K" },
	intName{ 5, "EM_88K" },
	intName{ 7, "EM_860" },
	intName{ 8, "EM_MIPS" },
	intName{ 9, "EM_S370" },
	intName{ 10, "EM_MIPS_RS3_LE" },
	intName{ 15, "EM_PARISC" },
	intName{ 17, "EM_VPP500" },
	intName{ 18, "EM_SPARC32PLUS" },
	intName{ 19, "EM_960" },
	intName{ 20, "EM_PPC" },
	intName{ 21, "EM_PPC64" },
	intName{ 22, "EM_S390" },
	intName{ 36, "EM_V800" },
	intName{ 37, "EM_FR20" },
	intName{ 38, "EM_RH32" },
	intName{ 39, "EM_RCE" },
	intName{ 40, "EM_ARM" },
	intName{ 42, "EM_SH" },
	intName{ 43, "EM_SPARCV9" },
	intName{ 44, "EM_TRICORE" },
	intName{ 45, "EM_ARC" },
	intName{ 46, "EM_H8_300" },
	intName{ 47, "EM_H8_300H" },
	intName{ 48, "EM_H8S" },
	intName{ 49, "EM_H8_500" },
	intName{ 50, "EM_IA_64" },
	intName{ 51, "EM_MIPS_X" },
	intName{ 52, "EM_COLDFIRE" },
	intName{ 53, "EM_68HC12" },
	intName{ 54, "EM_MMA" },
	intName{ 55, "EM_PCP" },
	intName{ 56, "EM_NCPU" },
	intName{ 57, "EM_NDR1" },
	intName{ 58, "EM_STARCORE" },
	intName{ 59, "EM_ME16" },
	intName{ 60, "EM_ST100" },
	intName{ 61, "EM_TINYJ" },
	intName{ 62, "EM_X86_64" },

	/* Non-standard or deprecated. */
	intName{ 6, "EM_486" },
	intName{ 10, "EM_MIPS_RS4_BE" },
	intName{ 41, "EM_ALPHA_STD" },
	intName{ 0x9026, "EM_ALPHA" },
}
func (i Machine) String() string {
	return stringName(uint32(i), machineStrings, false)
}
func (i Machine) GoString() string {
	return stringName(uint32(i), machineStrings, true)
}

// 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. */
	SHN_HIOS SectionIndex =	0xff3f;		/* Last operating system-specific. */
	SHN_ABS SectionIndex =		0xfff1;		/* Absolute values. */
	SHN_COMMON SectionIndex =	0xfff2;		/* Common data. */
	SHN_XINDEX SectionIndex =	0xffff;		/* Escape -- index stored elsewhere. */
	SHN_HIRESERVE SectionIndex =	0xffff;		/* Last of reserved range. */
)
var shnStrings = []intName {
	intName{ 0, "SHN_UNDEF" },
	intName{ 0xff00, "SHN_LOPROC" },
	intName{ 0xff20, "SHN_LOOS" },
	intName{ 0xfff1, "SHN_ABS" },
	intName{ 0xfff2, "SHN_COMMON" },
	intName{ 0xffff, "SHN_XINDEX" },
}
func (i SectionIndex) String() string {
	return stringName(uint32(i), shnStrings, false)
}
func (i SectionIndex) GoString() string {
	return stringName(uint32(i), shnStrings, true)
}

// Section type.
type SectionType uint32
const (
	SHT_NULL SectionType =		0;	/* inactive */
	SHT_PROGBITS SectionType =		1;	/* program defined information */
	SHT_SYMTAB SectionType =		2;	/* symbol table section */
	SHT_STRTAB SectionType =		3;	/* string table section */
	SHT_RELA SectionType =		4;	/* relocation section with addends */
	SHT_HASH SectionType =		5;	/* symbol hash table section */
	SHT_DYNAMIC SectionType =		6;	/* dynamic section */
	SHT_NOTE SectionType =		7;	/* note section */
	SHT_NOBITS SectionType =		8;	/* no space section */
	SHT_REL SectionType =			9;	/* relocation section - no addends */
	SHT_SHLIB SectionType =		10;	/* reserved - purpose unknown */
	SHT_DYNSYM SectionType =		11;	/* dynamic symbol table section */
	SHT_INIT_ARRAY SectionType =		14;	/* Initialization function pointers. */
	SHT_FINI_ARRAY SectionType =		15;	/* Termination function pointers. */
	SHT_PREINIT_ARRAY SectionType =	16;	/* Pre-initialization function ptrs. */
	SHT_GROUP SectionType =		17;	/* Section group. */
	SHT_SYMTAB_SHNDX SectionType =	18;	/* Section indexes (see SHN_XINDEX). */
	SHT_LOOS SectionType =	0x60000000;	/* First of OS specific semantics */
	SHT_HIOS SectionType =	0x6fffffff;	/* Last of OS specific semantics */
	SHT_LOPROC SectionType =	0x70000000;	/* reserved range for processor */
	SHT_HIPROC SectionType =	0x7fffffff;	/* specific section header types */
	SHT_LOUSER SectionType =	0x80000000;	/* reserved range for application */
	SHT_HIUSER SectionType =	0xffffffff;	/* specific indexes */
)
var shtStrings = []intName {
	intName{ 0, "SHT_NULL" },
	intName{ 1, "SHT_PROGBITS" },
	intName{ 2, "SHT_SYMTAB" },
	intName{ 3, "SHT_STRTAB" },
	intName{ 4, "SHT_RELA" },
	intName{ 5, "SHT_HASH" },
	intName{ 6, "SHT_DYNAMIC" },
	intName{ 7, "SHT_NOTE" },
	intName{ 8, "SHT_NOBITS" },
	intName{ 9, "SHT_REL" },
	intName{ 10, "SHT_SHLIB" },
	intName{ 11, "SHT_DYNSYM" },
	intName{ 14, "SHT_INIT_ARRAY" },
	intName{ 15, "SHT_FINI_ARRAY" },
	intName{ 16, "SHT_PREINIT_ARRAY" },
	intName{ 17, "SHT_GROUP" },
	intName{ 18, "SHT_SYMTAB_SHNDX" },
	intName{ 0x60000000, "SHT_LOOS" },
	intName{ 0x6fffffff, "SHT_HIOS" },
	intName{ 0x70000000, "SHT_LOPROC" },
	intName{ 0x7fffffff, "SHT_HIPROC" },
	intName{ 0x80000000, "SHT_LOUSER" },
	intName{ 0xffffffff, "SHT_HIUSER" },
}
func (i SectionType) String() string {
	return stringName(uint32(i), shtStrings, false)
}
func (i SectionType) GoString() string {
	return stringName(uint32(i), shtStrings, true)
}

// Section flags.
type SectionFlag uint32
const (
	SHF_WRITE SectionFlag =		0x1;	/* Section contains writable data. */
	SHF_ALLOC SectionFlag =		0x2;	/* Section occupies memory. */
	SHF_EXECINSTR SectionFlag =		0x4;	/* Section contains instructions. */
	SHF_MERGE SectionFlag =		0x10;	/* Section may be merged. */
	SHF_STRINGS SectionFlag =		0x20;	/* Section contains strings. */
	SHF_INFO_LINK SectionFlag =		0x40;	/* sh_info holds section index. */
	SHF_LINK_ORDER SectionFlag =		0x80;	/* Special ordering requirements. */
	SHF_OS_NONCONFORMING SectionFlag =	0x100;	/* OS-specific processing required. */
	SHF_GROUP SectionFlag =		0x200;	/* Member of section group. */
	SHF_TLS SectionFlag =			0x400;	/* Section contains TLS data. */
	SHF_MASKOS SectionFlag =	0x0ff00000;	/* OS-specific semantics. */
	SHF_MASKPROC SectionFlag =	0xf0000000;	/* Processor-specific semantics. */
)
var shfStrings = []intName {
	intName{ 0x1, "SHF_WRITE" },
	intName{ 0x2, "SHF_ALLOC" },
	intName{ 0x4, "SHF_EXECINSTR" },
	intName{ 0x10, "SHF_MERGE" },
	intName{ 0x20, "SHF_STRINGS" },
	intName{ 0x40, "SHF_INFO_LINK" },
	intName{ 0x80, "SHF_LINK_ORDER" },
	intName{ 0x100, "SHF_OS_NONCONFORMING" },
	intName{ 0x200, "SHF_GROUP" },
	intName{ 0x400, "SHF_TLS" },
}
func (i SectionFlag) String() string {
	return flagName(uint32(i), shfStrings, false)
}
func (i SectionFlag) GoString() string {
	return flagName(uint32(i), shfStrings, true)
}

// Prog.Type
type ProgType int
const (
	PT_NULL ProgType =		0;	/* Unused entry. */
	PT_LOAD ProgType =		1;	/* Loadable segment. */
	PT_DYNAMIC ProgType =	2;	/* Dynamic linking information segment. */
	PT_INTERP ProgType =	3;	/* Pathname of interpreter. */
	PT_NOTE ProgType =		4;	/* Auxiliary information. */
	PT_SHLIB ProgType =	5;	/* Reserved (not used). */
	PT_PHDR ProgType =		6;	/* Location of program header itself. */
	PT_TLS ProgType =		7;	/* Thread local storage segment */
	PT_LOOS ProgType =		0x60000000;	/* First OS-specific. */
	PT_HIOS ProgType =		0x6fffffff;	/* Last OS-specific. */
	PT_LOPROC ProgType =	0x70000000;	/* First processor-specific type. */
	PT_HIPROC ProgType =	0x7fffffff;	/* Last processor-specific type. */
)
var ptStrings = []intName {
	intName{ 0, "PT_NULL" },
	intName{ 1, "PT_LOAD" },
	intName{ 2, "PT_DYNAMIC" },
	intName{ 3, "PT_INTERP" },
	intName{ 4, "PT_NOTE" },
	intName{ 5, "PT_SHLIB" },
	intName{ 6, "PT_PHDR" },
	intName{ 7, "PT_TLS" },
	intName{ 0x60000000, "PT_LOOS" },
	intName{ 0x6fffffff, "PT_HIOS" },
	intName{ 0x70000000, "PT_LOPROC" },
	intName{ 0x7fffffff, "PT_HIPROC" },
}
func (i ProgType) String() string {
	return stringName(uint32(i), ptStrings, false)
}
func (i ProgType) GoString() string {
	return stringName(uint32(i), ptStrings, true)
}

// Prog.Flag
type ProgFlag uint32
const (
	PF_X ProgFlag =		0x1;		/* Executable. */
	PF_W ProgFlag =		0x2;		/* Writable. */
	PF_R ProgFlag =		0x4;		/* Readable. */
	PF_MASKOS ProgFlag =	0x0ff00000;	/* Operating system-specific. */
	PF_MASKPROC ProgFlag =	0xf0000000;	/* Processor-specific. */
)
var pfStrings = []intName {
	intName{ 0x1, "PF_X" },
	intName{ 0x2, "PF_W" },
	intName{ 0x4, "PF_R" },
}
func (i ProgFlag) String() string {
	return flagName(uint32(i), pfStrings, false)
}
func (i ProgFlag) GoString() string {
	return flagName(uint32(i), pfStrings, true)
}

// Dyn.Tag
type DynTag int
const (
	DT_NULL DynTag =		0;	/* Terminating entry. */
	DT_NEEDED DynTag =	1;	/* String table offset of a needed shared library. */
	DT_PLTRELSZ DynTag =	2;	/* Total size in bytes of PLT relocations. */
	DT_PLTGOT DynTag =	3;	/* Processor-dependent address. */
	DT_HASH DynTag =		4;	/* Address of symbol hash table. */
	DT_STRTAB DynTag =	5;	/* Address of string table. */
	DT_SYMTAB DynTag =	6;	/* Address of symbol table. */
	DT_RELA DynTag =		7;	/* Address of ElfNN_Rela relocations. */
	DT_RELASZ DynTag =	8;	/* Total size of ElfNN_Rela relocations. */
	DT_RELAENT DynTag =	9;	/* Size of each ElfNN_Rela relocation entry. */
	DT_STRSZ DynTag =	10;	/* Size of string table. */
	DT_SYMENT DynTag =	11;	/* Size of each symbol table entry. */
	DT_INIT DynTag =		12;	/* Address of initialization function. */
	DT_FINI DynTag =		13;	/* Address of finalization function. */
	DT_SONAME DynTag =	14;	/* String table offset of shared object name. */
	DT_RPATH DynTag =	15;	/* String table offset of library path. [sup] */
	DT_SYMBOLIC DynTag =	16;	/* Indicates "symbolic" linking. [sup] */
	DT_REL DynTag =		17;	/* Address of ElfNN_Rel relocations. */
	DT_RELSZ DynTag =	18;	/* Total size of ElfNN_Rel relocations. */
	DT_RELENT DynTag =	19;	/* Size of each ElfNN_Rel relocation. */
	DT_PLTREL DynTag =	20;	/* Type of relocation used for PLT. */
	DT_DEBUG DynTag =	21;	/* Reserved (not used). */
	DT_TEXTREL DynTag =	22;	/* Indicates there may be relocations in non-writable segments. [sup] */
	DT_JMPREL DynTag =	23;	/* Address of PLT relocations. */
	DT_BIND_NOW DynTag =	24;	/* [sup] */
	DT_INIT_ARRAY DynTag =	25;	/* Address of the array of pointers to initialization functions */
	DT_FINI_ARRAY DynTag =	26;	/* Address of the array of pointers to termination functions */
	DT_INIT_ARRAYSZ DynTag =	27;	/* Size in bytes of the array of initialization functions. */
	DT_FINI_ARRAYSZ DynTag =	28;	/* Size in bytes of the array of terminationfunctions. */
	DT_RUNPATH DynTag =	29;	/* String table offset of a null-terminated library search path string. */
	DT_FLAGS DynTag =	30;	/* Object specific flag values. */
	DT_ENCODING DynTag =	32;	/* Values greater than or equal to DT_ENCODING
				   and less than DT_LOOS follow the rules for
				   the interpretation of the d_un union
				   as follows: even == 'd_ptr', even == 'd_val'
				   or none */
	DT_PREINIT_ARRAY DynTag = 32;	/* Address of the array of pointers to pre-initialization functions. */
	DT_PREINIT_ARRAYSZ DynTag = 33;	/* Size in bytes of the array of pre-initialization functions. */
	DT_LOOS DynTag =		0x6000000d;	/* First OS-specific */
	DT_HIOS DynTag =		0x6ffff000;	/* Last OS-specific */
	DT_LOPROC DynTag =	0x70000000;	/* First processor-specific type. */
	DT_HIPROC DynTag =	0x7fffffff;	/* Last processor-specific type. */
)
var dtStrings = []intName {
	intName{ 0, "DT_NULL" },
	intName{ 1, "DT_NEEDED" },
	intName{ 2, "DT_PLTRELSZ" },
	intName{ 3, "DT_PLTGOT" },
	intName{ 4, "DT_HASH" },
	intName{ 5, "DT_STRTAB" },
	intName{ 6, "DT_SYMTAB" },
	intName{ 7, "DT_RELA" },
	intName{ 8, "DT_RELASZ" },
	intName{ 9, "DT_RELAENT" },
	intName{ 10, "DT_STRSZ" },
	intName{ 11, "DT_SYMENT" },
	intName{ 12, "DT_INIT" },
	intName{ 13, "DT_FINI" },
	intName{ 14, "DT_SONAME" },
	intName{ 15, "DT_RPATH" },
	intName{ 16, "DT_SYMBOLIC" },
	intName{ 17, "DT_REL" },
	intName{ 18, "DT_RELSZ" },
	intName{ 19, "DT_RELENT" },
	intName{ 20, "DT_PLTREL" },
	intName{ 21, "DT_DEBUG" },
	intName{ 22, "DT_TEXTREL" },
	intName{ 23, "DT_JMPREL" },
	intName{ 24, "DT_BIND_NOW" },
	intName{ 25, "DT_INIT_ARRAY" },
	intName{ 26, "DT_FINI_ARRAY" },
	intName{ 27, "DT_INIT_ARRAYSZ" },
	intName{ 28, "DT_FINI_ARRAYSZ" },
	intName{ 29, "DT_RUNPATH" },
	intName{ 30, "DT_FLAGS" },
	intName{ 32, "DT_ENCODING" },
	intName{ 32, "DT_PREINIT_ARRAY" },
	intName{ 33, "DT_PREINIT_ARRAYSZ" },
	intName{ 0x6000000d, "DT_LOOS" },
	intName{ 0x6ffff000, "DT_HIOS" },
	intName{ 0x70000000, "DT_LOPROC" },
	intName{ 0x7fffffff, "DT_HIPROC" },
}
func (i DynTag) String() string {
	return stringName(uint32(i), dtStrings, false)
}
func (i DynTag) GoString() string {
	return stringName(uint32(i), dtStrings, true)
}

// DT_FLAGS values.
type DynFlag int
const (
	DF_ORIGIN DynFlag =	0x0001;	/* Indicates that the object being loaded may
				   make reference to the $ORIGIN substitution
				   string */
	DF_SYMBOLIC DynFlag =	0x0002;	/* Indicates "symbolic" linking. */
	DF_TEXTREL DynFlag =	0x0004;	/* Indicates there may be relocations in
				   non-writable segments. */
	DF_BIND_NOW DynFlag =	0x0008;	/* Indicates that the dynamic linker should
				   process all relocations for the object
				   containing this entry before transferring
				   control to the program. */
	DF_STATIC_TLS DynFlag =	0x0010;	/* Indicates that the shared object or
				   executable contains code using a static
				   thread-local storage scheme. */
)
var dflagStrings = []intName {
	intName{ 0x0001, "DF_ORIGIN" },
	intName{ 0x0002, "DF_SYMBOLIC" },
	intName{ 0x0004, "DF_TEXTREL" },
	intName{ 0x0008, "DF_BIND_NOW" },
	intName{ 0x0010, "DF_STATIC_TLS" },
}
func (i DynFlag) String() string {
	return flagName(uint32(i), dflagStrings, false)
}
func (i DynFlag) GoString() string {
	return flagName(uint32(i), dflagStrings, true)
}

// NType values; used in core files.
type NType int
const (
	NT_PRSTATUS NType =	1;	/* Process status. */
	NT_FPREGSET NType =	2;	/* Floating point registers. */
	NT_PRPSINFO NType =	3;	/* Process state info. */
)
var ntypeStrings = []intName {
	intName{ 1, "NT_PRSTATUS" },
	intName{ 2, "NT_FPREGSET" },
	intName{ 3, "NT_PRPSINFO" },
}
func (i NType) String() string {
	return stringName(uint32(i), ntypeStrings, false)
}
func (i NType) GoString() string {
	return stringName(uint32(i), ntypeStrings, true)
}

/* Symbol Binding - ELFNN_ST_BIND - st_info */
type SymBind int
const (
	STB_LOCAL SymBind =	0;	/* Local symbol */
	STB_GLOBAL SymBind =	1;	/* Global symbol */
	STB_WEAK SymBind =	2;	/* like global - lower precedence */
	STB_LOOS SymBind =	10;	/* Reserved range for operating system */
	STB_HIOS SymBind =	12;	/*   specific semantics. */
	STB_LOPROC SymBind =	13;	/* reserved range for processor */
	STB_HIPROC SymBind =	15;	/*   specific semantics. */
)
var stbStrings = []intName {
	intName{ 0, "STB_LOCAL" },
	intName{ 1, "STB_GLOBAL" },
	intName{ 2, "STB_WEAK" },
	intName{ 10, "STB_LOOS" },
	intName{ 12, "STB_HIOS" },
	intName{ 13, "STB_LOPROC" },
	intName{ 15, "STB_HIPROC" },
}
func (i SymBind) String() string {
	return stringName(uint32(i), stbStrings, false)
}
func (i SymBind) GoString() string {
	return stringName(uint32(i), stbStrings, true)
}

/* Symbol type - ELFNN_ST_TYPE - st_info */
type SymType int
const (
	STT_NOTYPE SymType =	0;	/* Unspecified type. */
	STT_OBJECT SymType =	1;	/* Data object. */
	STT_FUNC SymType =	2;	/* Function. */
	STT_SECTION SymType =	3;	/* Section. */
	STT_FILE SymType =	4;	/* Source file. */
	STT_COMMON SymType =	5;	/* Uninitialized common block. */
	STT_TLS SymType =		6;	/* TLS object. */
	STT_LOOS SymType =	10;	/* Reserved range for operating system */
	STT_HIOS SymType =	12;	/*   specific semantics. */
	STT_LOPROC SymType =	13;	/* reserved range for processor */
	STT_HIPROC SymType =	15;	/*   specific semantics. */
)
var sttStrings = []intName {
	intName{ 0, "STT_NOTYPE" },
	intName{ 1, "STT_OBJECT" },
	intName{ 2, "STT_FUNC" },
	intName{ 3, "STT_SECTION" },
	intName{ 4, "STT_FILE" },
	intName{ 5, "STT_COMMON" },
	intName{ 6, "STT_TLS" },
	intName{ 10, "STT_LOOS" },
	intName{ 12, "STT_HIOS" },
	intName{ 13, "STT_LOPROC" },
	intName{ 15, "STT_HIPROC" },
}
func (i SymType) String() string {
	return stringName(uint32(i), sttStrings, false)
}
func (i SymType) GoString() string {
	return stringName(uint32(i), sttStrings, true)
}

/* Symbol visibility - ELFNN_ST_VISIBILITY - st_other */
type SymVis int
const (
	STV_DEFAULT SymVis =	0x0;	/* Default visibility (see binding). */
	STV_INTERNAL SymVis =	0x1;	/* Special meaning in relocatable objects. */
	STV_HIDDEN SymVis =	0x2;	/* Not visible. */
	STV_PROTECTED SymVis =	0x3;	/* Visible but not preemptible. */
)
var stvStrings = []intName {
	intName{ 0x0, "STV_DEFAULT" },
	intName{ 0x1, "STV_INTERNAL" },
	intName{ 0x2, "STV_HIDDEN" },
	intName{ 0x3, "STV_PROTECTED" },
}
func (i SymVis) String() string {
	return stringName(uint32(i), stvStrings, false)
}
func (i SymVis) GoString() string {
	return stringName(uint32(i), stvStrings, true)
}

/*
 * Relocation types.
 */

// Relocation types for x86-64.
type R_X86_64 int
const (
	R_X86_64_NONE R_X86_64 =	0;	/* No relocation. */
	R_X86_64_64 R_X86_64 =	1;	/* Add 64 bit symbol value. */
	R_X86_64_PC32 R_X86_64 =	2;	/* PC-relative 32 bit signed sym value. */
	R_X86_64_GOT32 R_X86_64 =	3;	/* PC-relative 32 bit GOT offset. */
	R_X86_64_PLT32 R_X86_64 =	4;	/* PC-relative 32 bit PLT offset. */
	R_X86_64_COPY R_X86_64 =	5;	/* Copy data from shared object. */
	R_X86_64_GLOB_DAT R_X86_64 = 6;	/* Set GOT entry to data address. */
	R_X86_64_JMP_SLOT R_X86_64 = 7;	/* Set GOT entry to code address. */
	R_X86_64_RELATIVE R_X86_64 = 8;	/* Add load address of shared object. */
	R_X86_64_GOTPCREL R_X86_64 = 9;	/* Add 32 bit signed pcrel offset to GOT. */
	R_X86_64_32 R_X86_64 =	10;	/* Add 32 bit zero extended symbol value */
	R_X86_64_32S R_X86_64 =	11;	/* Add 32 bit sign extended symbol value */
	R_X86_64_16 R_X86_64 =	12;	/* Add 16 bit zero extended symbol value */
	R_X86_64_PC16 R_X86_64 =	13;	/* Add 16 bit signed extended pc relative symbol value */
	R_X86_64_8 R_X86_64 =	14;	/* Add 8 bit zero extended symbol value */
	R_X86_64_PC8 R_X86_64 =	15;	/* Add 8 bit signed extended pc relative symbol value */
	R_X86_64_DTPMOD64 R_X86_64 = 16;	/* ID of module containing symbol */
	R_X86_64_DTPOFF64 R_X86_64 = 17;	/* Offset in TLS block */
	R_X86_64_TPOFF64 R_X86_64 = 18;	/* Offset in static TLS block */
	R_X86_64_TLSGD R_X86_64 =	19;	/* PC relative offset to GD GOT entry */
	R_X86_64_TLSLD R_X86_64 =	20;	/* PC relative offset to LD GOT entry */
	R_X86_64_DTPOFF32 R_X86_64 = 21;	/* Offset in TLS block */
	R_X86_64_GOTTPOFF R_X86_64 = 22;	/* PC relative offset to IE GOT entry */
	R_X86_64_TPOFF32 R_X86_64 = 23;	/* Offset in static TLS block */
)
var rx86_64Strings = []intName {
	intName{ 0, "R_X86_64_NONE" },
	intName{ 1, "R_X86_64_64" },
	intName{ 2, "R_X86_64_PC32" },
	intName{ 3, "R_X86_64_GOT32" },
	intName{ 4, "R_X86_64_PLT32" },
	intName{ 5, "R_X86_64_COPY" },
	intName{ 6, "R_X86_64_GLOB_DAT" },
	intName{ 7, "R_X86_64_JMP_SLOT" },
	intName{ 8, "R_X86_64_RELATIVE" },
	intName{ 9, "R_X86_64_GOTPCREL" },
	intName{ 10, "R_X86_64_32" },
	intName{ 11, "R_X86_64_32S" },
	intName{ 12, "R_X86_64_16" },
	intName{ 13, "R_X86_64_PC16" },
	intName{ 14, "R_X86_64_8" },
	intName{ 15, "R_X86_64_PC8" },
	intName{ 16, "R_X86_64_DTPMOD64" },
	intName{ 17, "R_X86_64_DTPOFF64" },
	intName{ 18, "R_X86_64_TPOFF64" },
	intName{ 19, "R_X86_64_TLSGD" },
	intName{ 20, "R_X86_64_TLSLD" },
	intName{ 21, "R_X86_64_DTPOFF32" },
	intName{ 22, "R_X86_64_GOTTPOFF" },
	intName{ 23, "R_X86_64_TPOFF32" },
}
func (i R_X86_64) String() string {
	return stringName(uint32(i), rx86_64Strings, false)
}
func (i R_X86_64) GoString() string {
	return stringName(uint32(i), rx86_64Strings, true)
}

// Relocation types for Alpha.
type R_ALPHA int
const (
	R_ALPHA_NONE R_ALPHA =		0;	/* No reloc */
	R_ALPHA_REFLONG R_ALPHA =		1;	/* Direct 32 bit */
	R_ALPHA_REFQUAD R_ALPHA =		2;	/* Direct 64 bit */
	R_ALPHA_GPREL32 R_ALPHA =		3;	/* GP relative 32 bit */
	R_ALPHA_LITERAL R_ALPHA =		4;	/* GP relative 16 bit w/optimization */
	R_ALPHA_LITUSE R_ALPHA =		5;	/* Optimization hint for LITERAL */
	R_ALPHA_GPDISP R_ALPHA =		6;	/* Add displacement to GP */
	R_ALPHA_BRADDR R_ALPHA =		7;	/* PC+4 relative 23 bit shifted */
	R_ALPHA_HINT R_ALPHA =		8;	/* PC+4 relative 16 bit shifted */
	R_ALPHA_SREL16 R_ALPHA =		9;	/* PC relative 16 bit */
	R_ALPHA_SREL32 R_ALPHA =		10;	/* PC relative 32 bit */
	R_ALPHA_SREL64 R_ALPHA =		11;	/* PC relative 64 bit */
	R_ALPHA_OP_PUSH R_ALPHA =		12;	/* OP stack push */
	R_ALPHA_OP_STORE R_ALPHA =	13;	/* OP stack pop and store */
	R_ALPHA_OP_PSUB R_ALPHA =		14;	/* OP stack subtract */
	R_ALPHA_OP_PRSHIFT R_ALPHA =	15;	/* OP stack right shift */
	R_ALPHA_GPVALUE R_ALPHA =		16;
	R_ALPHA_GPRELHIGH R_ALPHA =	17;
	R_ALPHA_GPRELLOW R_ALPHA =	18;
	R_ALPHA_IMMED_GP_16 R_ALPHA =	19;
	R_ALPHA_IMMED_GP_HI32 R_ALPHA =	20;
	R_ALPHA_IMMED_SCN_HI32 R_ALPHA =	21;
	R_ALPHA_IMMED_BR_HI32 R_ALPHA =	22;
	R_ALPHA_IMMED_LO32 R_ALPHA =	23;
	R_ALPHA_COPY R_ALPHA =		24;	/* Copy symbol at runtime */
	R_ALPHA_GLOB_DAT R_ALPHA =	25;	/* Create GOT entry */
	R_ALPHA_JMP_SLOT R_ALPHA =	26;	/* Create PLT entry */
	R_ALPHA_RELATIVE R_ALPHA =	27;	/* Adjust by program base */
)
var ralphaStrings = []intName {
	intName{ 0, "R_ALPHA_NONE" },
	intName{ 1, "R_ALPHA_REFLONG" },
	intName{ 2, "R_ALPHA_REFQUAD" },
	intName{ 3, "R_ALPHA_GPREL32" },
	intName{ 4, "R_ALPHA_LITERAL" },
	intName{ 5, "R_ALPHA_LITUSE" },
	intName{ 6, "R_ALPHA_GPDISP" },
	intName{ 7, "R_ALPHA_BRADDR" },
	intName{ 8, "R_ALPHA_HINT" },
	intName{ 9, "R_ALPHA_SREL16" },
	intName{ 10, "R_ALPHA_SREL32" },
	intName{ 11, "R_ALPHA_SREL64" },
	intName{ 12, "R_ALPHA_OP_PUSH" },
	intName{ 13, "R_ALPHA_OP_STORE" },
	intName{ 14, "R_ALPHA_OP_PSUB" },
	intName{ 15, "R_ALPHA_OP_PRSHIFT" },
	intName{ 16, "R_ALPHA_GPVALUE" },
	intName{ 17, "R_ALPHA_GPRELHIGH" },
	intName{ 18, "R_ALPHA_GPRELLOW" },
	intName{ 19, "R_ALPHA_IMMED_GP_16" },
	intName{ 20, "R_ALPHA_IMMED_GP_HI32" },
	intName{ 21, "R_ALPHA_IMMED_SCN_HI32" },
	intName{ 22, "R_ALPHA_IMMED_BR_HI32" },
	intName{ 23, "R_ALPHA_IMMED_LO32" },
	intName{ 24, "R_ALPHA_COPY" },
	intName{ 25, "R_ALPHA_GLOB_DAT" },
	intName{ 26, "R_ALPHA_JMP_SLOT" },
	intName{ 27, "R_ALPHA_RELATIVE" },
}
func (i R_ALPHA) String() string {
	return stringName(uint32(i), ralphaStrings, false)
}
func (i R_ALPHA) GoString() string {
	return stringName(uint32(i), ralphaStrings, true)
}

// Relocation types for ARM.
type R_ARM int
const (
	R_ARM_NONE R_ARM =		0;	/* No relocation. */
	R_ARM_PC24 R_ARM =		1;
	R_ARM_ABS32 R_ARM =		2;
	R_ARM_REL32 R_ARM =		3;
	R_ARM_PC13 R_ARM =		4;
	R_ARM_ABS16 R_ARM =		5;
	R_ARM_ABS12 R_ARM =		6;
	R_ARM_THM_ABS5 R_ARM =		7;
	R_ARM_ABS8 R_ARM =		8;
	R_ARM_SBREL32 R_ARM =		9;
	R_ARM_THM_PC22 R_ARM =		10;
	R_ARM_THM_PC8 R_ARM =		11;
	R_ARM_AMP_VCALL9 R_ARM =	12;
	R_ARM_SWI24 R_ARM =		13;
	R_ARM_THM_SWI8 R_ARM =		14;
	R_ARM_XPC25 R_ARM =		15;
	R_ARM_THM_XPC22 R_ARM =		16;
	R_ARM_COPY R_ARM =		20;	/* Copy data from shared object. */
	R_ARM_GLOB_DAT R_ARM =		21;	/* Set GOT entry to data address. */
	R_ARM_JUMP_SLOT R_ARM =		22;	/* Set GOT entry to code address. */
	R_ARM_RELATIVE R_ARM =		23;	/* Add load address of shared object. */
	R_ARM_GOTOFF R_ARM =		24;	/* Add GOT-relative symbol address. */
	R_ARM_GOTPC R_ARM =		25;	/* Add PC-relative GOT table address. */
	R_ARM_GOT32 R_ARM =		26;	/* Add PC-relative GOT offset. */
	R_ARM_PLT32 R_ARM =		27;	/* Add PC-relative PLT offset. */
	R_ARM_GNU_VTENTRY R_ARM =	100;
	R_ARM_GNU_VTINHERIT R_ARM =	101;
	R_ARM_RSBREL32 R_ARM =		250;
	R_ARM_THM_RPC22 R_ARM =		251;
	R_ARM_RREL32 R_ARM =		252;
	R_ARM_RABS32 R_ARM =		253;
	R_ARM_RPC24 R_ARM =		254;
	R_ARM_RBASE R_ARM =		255;
)
var rarmStrings = []intName {
	intName{ 0, "R_ARM_NONE" },
	intName{ 1, "R_ARM_PC24" },
	intName{ 2, "R_ARM_ABS32" },
	intName{ 3, "R_ARM_REL32" },
	intName{ 4, "R_ARM_PC13" },
	intName{ 5, "R_ARM_ABS16" },
	intName{ 6, "R_ARM_ABS12" },
	intName{ 7, "R_ARM_THM_ABS5" },
	intName{ 8, "R_ARM_ABS8" },
	intName{ 9, "R_ARM_SBREL32" },
	intName{ 10, "R_ARM_THM_PC22" },
	intName{ 11, "R_ARM_THM_PC8" },
	intName{ 12, "R_ARM_AMP_VCALL9" },
	intName{ 13, "R_ARM_SWI24" },
	intName{ 14, "R_ARM_THM_SWI8" },
	intName{ 15, "R_ARM_XPC25" },
	intName{ 16, "R_ARM_THM_XPC22" },
	intName{ 20, "R_ARM_COPY" },
	intName{ 21, "R_ARM_GLOB_DAT" },
	intName{ 22, "R_ARM_JUMP_SLOT" },
	intName{ 23, "R_ARM_RELATIVE" },
	intName{ 24, "R_ARM_GOTOFF" },
	intName{ 25, "R_ARM_GOTPC" },
	intName{ 26, "R_ARM_GOT32" },
	intName{ 27, "R_ARM_PLT32" },
	intName{ 100, "R_ARM_GNU_VTENTRY" },
	intName{ 101, "R_ARM_GNU_VTINHERIT" },
	intName{ 250, "R_ARM_RSBREL32" },
	intName{ 251, "R_ARM_THM_RPC22" },
	intName{ 252, "R_ARM_RREL32" },
	intName{ 253, "R_ARM_RABS32" },
	intName{ 254, "R_ARM_RPC24" },
	intName{ 255, "R_ARM_RBASE" },
}
func (i R_ARM) String() string {
	return stringName(uint32(i), rarmStrings, false)
}
func (i R_ARM) GoString() string {
	return stringName(uint32(i), rarmStrings, true)
}

// Relocation types for 386.
type R_386 int
const (
	R_386_NONE R_386 =	0;	/* No relocation. */
	R_386_32 R_386 =	1;	/* Add symbol value. */
	R_386_PC32 R_386 =	2;	/* Add PC-relative symbol value. */
	R_386_GOT32 R_386 =	3;	/* Add PC-relative GOT offset. */
	R_386_PLT32 R_386 =	4;	/* Add PC-relative PLT offset. */
	R_386_COPY R_386 =	5;	/* Copy data from shared object. */
	R_386_GLOB_DAT R_386 =	6;	/* Set GOT entry to data address. */
	R_386_JMP_SLOT R_386 =	7;	/* Set GOT entry to code address. */
	R_386_RELATIVE R_386 =	8;	/* Add load address of shared object. */
	R_386_GOTOFF R_386 =	9;	/* Add GOT-relative symbol address. */
	R_386_GOTPC R_386 =	10;	/* Add PC-relative GOT table address. */
	R_386_TLS_TPOFF R_386 =	14;	/* Negative offset in static TLS block */
	R_386_TLS_IE R_386 =	15;	/* Absolute address of GOT for -ve static TLS */
	R_386_TLS_GOTIE R_386 =	16;	/* GOT entry for negative static TLS block */
	R_386_TLS_LE R_386 =	17;	/* Negative offset relative to static TLS */
	R_386_TLS_GD R_386 =	18;	/* 32 bit offset to GOT (index,off) pair */
	R_386_TLS_LDM R_386 =	19;	/* 32 bit offset to GOT (index,zero) pair */
	R_386_TLS_GD_32 R_386 =	24;	/* 32 bit offset to GOT (index,off) pair */
	R_386_TLS_GD_PUSH R_386 = 25;	/* pushl instruction for Sun ABI GD sequence */
	R_386_TLS_GD_CALL R_386 = 26;	/* call instruction for Sun ABI GD sequence */
	R_386_TLS_GD_POP R_386 = 27;	/* popl instruction for Sun ABI GD sequence */
	R_386_TLS_LDM_32 R_386 = 28;	/* 32 bit offset to GOT (index,zero) pair */
	R_386_TLS_LDM_PUSH R_386 = 29;	/* pushl instruction for Sun ABI LD sequence */
	R_386_TLS_LDM_CALL R_386 = 30;	/* call instruction for Sun ABI LD sequence */
	R_386_TLS_LDM_POP R_386 = 31;	/* popl instruction for Sun ABI LD sequence */
	R_386_TLS_LDO_32 R_386 = 32;	/* 32 bit offset from start of TLS block */
	R_386_TLS_IE_32 R_386 =	33;	/* 32 bit offset to GOT static TLS offset entry */
	R_386_TLS_LE_32 R_386 =	34;	/* 32 bit offset within static TLS block */
	R_386_TLS_DTPMOD32 R_386 = 35;	/* GOT entry containing TLS index */
	R_386_TLS_DTPOFF32 R_386 = 36;	/* GOT entry containing TLS offset */
	R_386_TLS_TPOFF32 R_386 = 37;	/* GOT entry of -ve static TLS offset */
)
var r386Strings = []intName {
	intName{ 0, "R_386_NONE" },
	intName{ 1, "R_386_32" },
	intName{ 2, "R_386_PC32" },
	intName{ 3, "R_386_GOT32" },
	intName{ 4, "R_386_PLT32" },
	intName{ 5, "R_386_COPY" },
	intName{ 6, "R_386_GLOB_DAT" },
	intName{ 7, "R_386_JMP_SLOT" },
	intName{ 8, "R_386_RELATIVE" },
	intName{ 9, "R_386_GOTOFF" },
	intName{ 10, "R_386_GOTPC" },
	intName{ 14, "R_386_TLS_TPOFF" },
	intName{ 15, "R_386_TLS_IE" },
	intName{ 16, "R_386_TLS_GOTIE" },
	intName{ 17, "R_386_TLS_LE" },
	intName{ 18, "R_386_TLS_GD" },
	intName{ 19, "R_386_TLS_LDM" },
	intName{ 24, "R_386_TLS_GD_32" },
	intName{ 25, "R_386_TLS_GD_PUSH" },
	intName{ 26, "R_386_TLS_GD_CALL" },
	intName{ 27, "R_386_TLS_GD_POP" },
	intName{ 28, "R_386_TLS_LDM_32" },
	intName{ 29, "R_386_TLS_LDM_PUSH" },
	intName{ 30, "R_386_TLS_LDM_CALL" },
	intName{ 31, "R_386_TLS_LDM_POP" },
	intName{ 32, "R_386_TLS_LDO_32" },
	intName{ 33, "R_386_TLS_IE_32" },
	intName{ 34, "R_386_TLS_LE_32" },
	intName{ 35, "R_386_TLS_DTPMOD32" },
	intName{ 36, "R_386_TLS_DTPOFF32" },
	intName{ 37, "R_386_TLS_TPOFF32" },
}
func (i R_386) String() string {
	return stringName(uint32(i), r386Strings, false)
}
func (i R_386) GoString() string {
	return stringName(uint32(i), r386Strings, true)
}

// Relocation types for PowerPC.
type R_PPC int
const (
	R_PPC_NONE R_PPC =		0;	/* No relocation. */
	R_PPC_ADDR32 R_PPC =		1;
	R_PPC_ADDR24 R_PPC =		2;
	R_PPC_ADDR16 R_PPC =		3;
	R_PPC_ADDR16_LO R_PPC =		4;
	R_PPC_ADDR16_HI R_PPC =		5;
	R_PPC_ADDR16_HA R_PPC =		6;
	R_PPC_ADDR14 R_PPC =		7;
	R_PPC_ADDR14_BRTAKEN R_PPC =	8;
	R_PPC_ADDR14_BRNTAKEN R_PPC =	9;
	R_PPC_REL24 R_PPC =		10;
	R_PPC_REL14 R_PPC =		11;
	R_PPC_REL14_BRTAKEN R_PPC =	12;
	R_PPC_REL14_BRNTAKEN R_PPC =	13;
	R_PPC_GOT16 R_PPC =		14;
	R_PPC_GOT16_LO R_PPC =		15;
	R_PPC_GOT16_HI R_PPC =		16;
	R_PPC_GOT16_HA R_PPC =		17;
	R_PPC_PLTREL24 R_PPC =		18;
	R_PPC_COPY R_PPC =		19;
	R_PPC_GLOB_DAT R_PPC =		20;
	R_PPC_JMP_SLOT R_PPC =		21;
	R_PPC_RELATIVE R_PPC =		22;
	R_PPC_LOCAL24PC R_PPC =		23;
	R_PPC_UADDR32 R_PPC =		24;
	R_PPC_UADDR16 R_PPC =		25;
	R_PPC_REL32 R_PPC =		26;
	R_PPC_PLT32 R_PPC =		27;
	R_PPC_PLTREL32 R_PPC =		28;
	R_PPC_PLT16_LO R_PPC =		29;
	R_PPC_PLT16_HI R_PPC =		30;
	R_PPC_PLT16_HA R_PPC =		31;
	R_PPC_SDAREL16 R_PPC =		32;
	R_PPC_SECTOFF R_PPC =		33;
	R_PPC_SECTOFF_LO R_PPC =	34;
	R_PPC_SECTOFF_HI R_PPC =	35;
	R_PPC_SECTOFF_HA R_PPC =	36;

	R_PPC_TLS R_PPC =		67;
	R_PPC_DTPMOD32 R_PPC =		68;
	R_PPC_TPREL16 R_PPC =		69;
	R_PPC_TPREL16_LO R_PPC =	70;
	R_PPC_TPREL16_HI R_PPC =	71;
	R_PPC_TPREL16_HA R_PPC =	72;
	R_PPC_TPREL32 R_PPC =		73;
	R_PPC_DTPREL16 R_PPC =		74;
	R_PPC_DTPREL16_LO R_PPC =	75;
	R_PPC_DTPREL16_HI R_PPC =	76;
	R_PPC_DTPREL16_HA R_PPC =	77;
	R_PPC_DTPREL32 R_PPC =		78;
	R_PPC_GOT_TLSGD16 R_PPC =	79;
	R_PPC_GOT_TLSGD16_LO R_PPC =	80;
	R_PPC_GOT_TLSGD16_HI R_PPC =	81;
	R_PPC_GOT_TLSGD16_HA R_PPC =	82;
	R_PPC_GOT_TLSLD16 R_PPC =	83;
	R_PPC_GOT_TLSLD16_LO R_PPC =	84;
	R_PPC_GOT_TLSLD16_HI R_PPC =	85;
	R_PPC_GOT_TLSLD16_HA R_PPC =	86;
	R_PPC_GOT_TPREL16 R_PPC =	87;
	R_PPC_GOT_TPREL16_LO R_PPC =	88;
	R_PPC_GOT_TPREL16_HI R_PPC =	89;
	R_PPC_GOT_TPREL16_HA R_PPC =	90;

	R_PPC_EMB_NADDR32 R_PPC =	101;
	R_PPC_EMB_NADDR16 R_PPC =	102;
	R_PPC_EMB_NADDR16_LO R_PPC =	103;
	R_PPC_EMB_NADDR16_HI R_PPC =	104;
	R_PPC_EMB_NADDR16_HA R_PPC =	105;
	R_PPC_EMB_SDAI16 R_PPC =	106;
	R_PPC_EMB_SDA2I16 R_PPC =	107;
	R_PPC_EMB_SDA2REL R_PPC =	108;
	R_PPC_EMB_SDA21 R_PPC =		109;
	R_PPC_EMB_MRKREF R_PPC =	110;
	R_PPC_EMB_RELSEC16 R_PPC =	111;
	R_PPC_EMB_RELST_LO R_PPC =	112;
	R_PPC_EMB_RELST_HI R_PPC =	113;
	R_PPC_EMB_RELST_HA R_PPC =	114;
	R_PPC_EMB_BIT_FLD R_PPC =	115;
	R_PPC_EMB_RELSDA R_PPC =	116;
)
var rppcStrings = []intName {
	intName{ 0, "R_PPC_NONE" },
	intName{ 1, "R_PPC_ADDR32" },
	intName{ 2, "R_PPC_ADDR24" },
	intName{ 3, "R_PPC_ADDR16" },
	intName{ 4, "R_PPC_ADDR16_LO" },
	intName{ 5, "R_PPC_ADDR16_HI" },
	intName{ 6, "R_PPC_ADDR16_HA" },
	intName{ 7, "R_PPC_ADDR14" },
	intName{ 8, "R_PPC_ADDR14_BRTAKEN" },
	intName{ 9, "R_PPC_ADDR14_BRNTAKEN" },
	intName{ 10, "R_PPC_REL24" },
	intName{ 11, "R_PPC_REL14" },
	intName{ 12, "R_PPC_REL14_BRTAKEN" },
	intName{ 13, "R_PPC_REL14_BRNTAKEN" },
	intName{ 14, "R_PPC_GOT16" },
	intName{ 15, "R_PPC_GOT16_LO" },
	intName{ 16, "R_PPC_GOT16_HI" },
	intName{ 17, "R_PPC_GOT16_HA" },
	intName{ 18, "R_PPC_PLTREL24" },
	intName{ 19, "R_PPC_COPY" },
	intName{ 20, "R_PPC_GLOB_DAT" },
	intName{ 21, "R_PPC_JMP_SLOT" },
	intName{ 22, "R_PPC_RELATIVE" },
	intName{ 23, "R_PPC_LOCAL24PC" },
	intName{ 24, "R_PPC_UADDR32" },
	intName{ 25, "R_PPC_UADDR16" },
	intName{ 26, "R_PPC_REL32" },
	intName{ 27, "R_PPC_PLT32" },
	intName{ 28, "R_PPC_PLTREL32" },
	intName{ 29, "R_PPC_PLT16_LO" },
	intName{ 30, "R_PPC_PLT16_HI" },
	intName{ 31, "R_PPC_PLT16_HA" },
	intName{ 32, "R_PPC_SDAREL16" },
	intName{ 33, "R_PPC_SECTOFF" },
	intName{ 34, "R_PPC_SECTOFF_LO" },
	intName{ 35, "R_PPC_SECTOFF_HI" },
	intName{ 36, "R_PPC_SECTOFF_HA" },

	intName{ 67, "R_PPC_TLS" },
	intName{ 68, "R_PPC_DTPMOD32" },
	intName{ 69, "R_PPC_TPREL16" },
	intName{ 70, "R_PPC_TPREL16_LO" },
	intName{ 71, "R_PPC_TPREL16_HI" },
	intName{ 72, "R_PPC_TPREL16_HA" },
	intName{ 73, "R_PPC_TPREL32" },
	intName{ 74, "R_PPC_DTPREL16" },
	intName{ 75, "R_PPC_DTPREL16_LO" },
	intName{ 76, "R_PPC_DTPREL16_HI" },
	intName{ 77, "R_PPC_DTPREL16_HA" },
	intName{ 78, "R_PPC_DTPREL32" },
	intName{ 79, "R_PPC_GOT_TLSGD16" },
	intName{ 80, "R_PPC_GOT_TLSGD16_LO" },
	intName{ 81, "R_PPC_GOT_TLSGD16_HI" },
	intName{ 82, "R_PPC_GOT_TLSGD16_HA" },
	intName{ 83, "R_PPC_GOT_TLSLD16" },
	intName{ 84, "R_PPC_GOT_TLSLD16_LO" },
	intName{ 85, "R_PPC_GOT_TLSLD16_HI" },
	intName{ 86, "R_PPC_GOT_TLSLD16_HA" },
	intName{ 87, "R_PPC_GOT_TPREL16" },
	intName{ 88, "R_PPC_GOT_TPREL16_LO" },
	intName{ 89, "R_PPC_GOT_TPREL16_HI" },
	intName{ 90, "R_PPC_GOT_TPREL16_HA" },

	intName{ 101, "R_PPC_EMB_NADDR32" },
	intName{ 102, "R_PPC_EMB_NADDR16" },
	intName{ 103, "R_PPC_EMB_NADDR16_LO" },
	intName{ 104, "R_PPC_EMB_NADDR16_HI" },
	intName{ 105, "R_PPC_EMB_NADDR16_HA" },
	intName{ 106, "R_PPC_EMB_SDAI16" },
	intName{ 107, "R_PPC_EMB_SDA2I16" },
	intName{ 108, "R_PPC_EMB_SDA2REL" },
	intName{ 109, "R_PPC_EMB_SDA21" },
	intName{ 110, "R_PPC_EMB_MRKREF" },
	intName{ 111, "R_PPC_EMB_RELSEC16" },
	intName{ 112, "R_PPC_EMB_RELST_LO" },
	intName{ 113, "R_PPC_EMB_RELST_HI" },
	intName{ 114, "R_PPC_EMB_RELST_HA" },
	intName{ 115, "R_PPC_EMB_BIT_FLD" },
	intName{ 116, "R_PPC_EMB_RELSDA" },
}
func (i R_PPC) String() string {
	return stringName(uint32(i), rppcStrings, false)
}
func (i R_PPC) GoString() string {
	return stringName(uint32(i), rppcStrings, true)
}

// Relocation types for SPARC.
type R_SPARC int
const (
	R_SPARC_NONE R_SPARC =		0;
	R_SPARC_8 R_SPARC =		1;
	R_SPARC_16 R_SPARC =		2;
	R_SPARC_32 R_SPARC =		3;
	R_SPARC_DISP8 R_SPARC =		4;
	R_SPARC_DISP16 R_SPARC =		5;
	R_SPARC_DISP32 R_SPARC =		6;
	R_SPARC_WDISP30 R_SPARC =		7;
	R_SPARC_WDISP22 R_SPARC =		8;
	R_SPARC_HI22 R_SPARC =		9;
	R_SPARC_22 R_SPARC =		10;
	R_SPARC_13 R_SPARC =		11;
	R_SPARC_LO10 R_SPARC =		12;
	R_SPARC_GOT10 R_SPARC =		13;
	R_SPARC_GOT13 R_SPARC =		14;
	R_SPARC_GOT22 R_SPARC =		15;
	R_SPARC_PC10 R_SPARC =		16;
	R_SPARC_PC22 R_SPARC =		17;
	R_SPARC_WPLT30 R_SPARC =		18;
	R_SPARC_COPY R_SPARC =		19;
	R_SPARC_GLOB_DAT R_SPARC =	20;
	R_SPARC_JMP_SLOT R_SPARC =	21;
	R_SPARC_RELATIVE R_SPARC =	22;
	R_SPARC_UA32 R_SPARC =		23;
	R_SPARC_PLT32 R_SPARC =		24;
	R_SPARC_HIPLT22 R_SPARC =		25;
	R_SPARC_LOPLT10 R_SPARC =		26;
	R_SPARC_PCPLT32 R_SPARC =		27;
	R_SPARC_PCPLT22 R_SPARC =		28;
	R_SPARC_PCPLT10 R_SPARC =		29;
	R_SPARC_10 R_SPARC =		30;
	R_SPARC_11 R_SPARC =		31;
	R_SPARC_64 R_SPARC =		32;
	R_SPARC_OLO10 R_SPARC =		33;
	R_SPARC_HH22 R_SPARC =		34;
	R_SPARC_HM10 R_SPARC =		35;
	R_SPARC_LM22 R_SPARC =		36;
	R_SPARC_PC_HH22 R_SPARC =		37;
	R_SPARC_PC_HM10 R_SPARC =		38;
	R_SPARC_PC_LM22 R_SPARC =		39;
	R_SPARC_WDISP16 R_SPARC =		40;
	R_SPARC_WDISP19 R_SPARC =		41;
	R_SPARC_GLOB_JMP R_SPARC =	42;
	R_SPARC_7 R_SPARC =		43;
	R_SPARC_5 R_SPARC =		44;
	R_SPARC_6 R_SPARC =		45;
	R_SPARC_DISP64 R_SPARC =		46;
	R_SPARC_PLT64 R_SPARC =		47;
	R_SPARC_HIX22 R_SPARC =		48;
	R_SPARC_LOX10 R_SPARC =		49;
	R_SPARC_H44 R_SPARC =		50;
	R_SPARC_M44 R_SPARC =		51;
	R_SPARC_L44 R_SPARC =		52;
	R_SPARC_REGISTER R_SPARC =	53;
	R_SPARC_UA64 R_SPARC =		54;
	R_SPARC_UA16 R_SPARC =		55;
)
var rsparcStrings = []intName {
	intName{ 0, "R_SPARC_NONE" },
	intName{ 1, "R_SPARC_8" },
	intName{ 2, "R_SPARC_16" },
	intName{ 3, "R_SPARC_32" },
	intName{ 4, "R_SPARC_DISP8" },
	intName{ 5, "R_SPARC_DISP16" },
	intName{ 6, "R_SPARC_DISP32" },
	intName{ 7, "R_SPARC_WDISP30" },
	intName{ 8, "R_SPARC_WDISP22" },
	intName{ 9, "R_SPARC_HI22" },
	intName{ 10, "R_SPARC_22" },
	intName{ 11, "R_SPARC_13" },
	intName{ 12, "R_SPARC_LO10" },
	intName{ 13, "R_SPARC_GOT10" },
	intName{ 14, "R_SPARC_GOT13" },
	intName{ 15, "R_SPARC_GOT22" },
	intName{ 16, "R_SPARC_PC10" },
	intName{ 17, "R_SPARC_PC22" },
	intName{ 18, "R_SPARC_WPLT30" },
	intName{ 19, "R_SPARC_COPY" },
	intName{ 20, "R_SPARC_GLOB_DAT" },
	intName{ 21, "R_SPARC_JMP_SLOT" },
	intName{ 22, "R_SPARC_RELATIVE" },
	intName{ 23, "R_SPARC_UA32" },
	intName{ 24, "R_SPARC_PLT32" },
	intName{ 25, "R_SPARC_HIPLT22" },
	intName{ 26, "R_SPARC_LOPLT10" },
	intName{ 27, "R_SPARC_PCPLT32" },
	intName{ 28, "R_SPARC_PCPLT22" },
	intName{ 29, "R_SPARC_PCPLT10" },
	intName{ 30, "R_SPARC_10" },
	intName{ 31, "R_SPARC_11" },
	intName{ 32, "R_SPARC_64" },
	intName{ 33, "R_SPARC_OLO10" },
	intName{ 34, "R_SPARC_HH22" },
	intName{ 35, "R_SPARC_HM10" },
	intName{ 36, "R_SPARC_LM22" },
	intName{ 37, "R_SPARC_PC_HH22" },
	intName{ 38, "R_SPARC_PC_HM10" },
	intName{ 39, "R_SPARC_PC_LM22" },
	intName{ 40, "R_SPARC_WDISP16" },
	intName{ 41, "R_SPARC_WDISP19" },
	intName{ 42, "R_SPARC_GLOB_JMP" },
	intName{ 43, "R_SPARC_7" },
	intName{ 44, "R_SPARC_5" },
	intName{ 45, "R_SPARC_6" },
	intName{ 46, "R_SPARC_DISP64" },
	intName{ 47, "R_SPARC_PLT64" },
	intName{ 48, "R_SPARC_HIX22" },
	intName{ 49, "R_SPARC_LOX10" },
	intName{ 50, "R_SPARC_H44" },
	intName{ 51, "R_SPARC_M44" },
	intName{ 52, "R_SPARC_L44" },
	intName{ 53, "R_SPARC_REGISTER" },
	intName{ 54, "R_SPARC_UA64" },
	intName{ 55, "R_SPARC_UA16" },
}
func (i R_SPARC) String() string {
	return stringName(uint32(i), rsparcStrings, false)
}
func (i R_SPARC) GoString() string {
	return stringName(uint32(i), rsparcStrings, true)
}

/*
 * Magic number for the elf trampoline, chosen wisely to be an immediate
 * value.
 */
const ARM_MAGIC_TRAMP_NUMBER = 0x5c000003


/*
 * ELF32 File header.
 */
type Header32 struct {
	Ident	[EI_NIDENT]byte;	/* File identification. */
	Type	uint16;		/* File type. */
	Machine	uint16;	/* Machine architecture. */
	Version	uint32;	/* ELF format version. */
	Entry	uint32;	/* Entry point. */
	Phoff	uint32;	/* Program header file offset. */
	Shoff	uint32;	/* Section header file offset. */
	Flags	uint32;	/* Architecture-specific flags. */
	Ehsize	uint16;	/* Size of ELF header in bytes. */
	Phentsize	uint16;	/* Size of program header entry. */
	Phnum	uint16;	/* Number of program header entries. */
	Shentsize	uint16;	/* Size of section header entry. */
	Shnum	uint16;	/* Number of section header entries. */
	Shstrndx	uint16;	/* Section name strings section. */
}

/*
 * ELF32 Section header.
 */
type Section32 struct {
	Name	uint32;	/* Section name (index into the
					   section header string table). */
	Type	uint32;	/* Section type. */
	Flags	uint32;	/* Section flags. */
	Addr	uint32;	/* Address in memory image. */
	Off	uint32;	/* Offset in file. */
	Size	uint32;	/* Size in bytes. */
	Link	uint32;	/* Index of a related section. */
	Info	uint32;	/* Depends on section type. */
	Addralign	uint32;	/* Alignment in bytes. */
	Entsize	uint32;	/* Size of each entry in section. */
}

/*
 * ELF32 Program header.
 */
type Prog32 struct {
	Type	uint32;		/* Entry type. */
	Off	uint32;	/* File offset of contents. */
	Vaddr	uint32;	/* Virtual address in memory image. */
	Paddr	uint32;	/* Physical address (not used). */
	Filesz	uint32;	/* Size of contents in file. */
	Memsz	uint32;	/* Size of contents in memory. */
	Flags	uint32;	/* Access permission flags. */
	Align	uint32;	/* Alignment in memory and file. */
}

/*
 * ELF32 Dynamic structure.  The ".dynamic" section contains an array of them.
 */
type Dyn32 struct {
	Tag	int32;		/* Entry type. */
	Val	uint32;		/* Integer/Address value. */
};

/*
 * Relocation entries.
 */

// ELF32 Relocations that don't need an addend field.
type Rel32 struct {
	Off	uint32;	/* Location to be relocated. */
	Info	uint32;		/* Relocation type and symbol index. */
}

// ELF32 Relocations that need an addend field.
type Rela32 struct {
	Off	uint32;	/* Location to be relocated. */
	Info	uint32;		/* Relocation type and symbol index. */
	Addend	int32;	/* Addend. */
}

func R_SYM32(info uint32) uint32 {
	return uint32(info>>8)
}
func R_TYPE32(info uint32) uint32 {
	return uint32(info&0xff)
}
func R_INFO32(sym, typ uint32) uint32 {
	return sym<<8 | typ;
}

// ELF32 Symbol.
type Sym32 struct {
	Name	uint32;
	Value	uint32;
	Size	uint32;
	Info	uint8;
	Other	uint8;
	Shndx	uint16;
}

func ST_BIND(info uint8) SymBind {
	return SymBind(info>>4)
}
func ST_TYPE(bind SymBind, typ SymType) uint8 {
	return uint8(bind)<<4 | uint8(typ)&0xf
}
func ST_VISIBILITY(other uint8) SymVis {
	return SymVis(other & 3)
}

/*
 * ELF64
 */

/*
 * ELF64 file header.
 */

type Header64 struct {
	Ident	[EI_NIDENT]byte;	/* File identification. */
	Type	uint16;		/* File type. */
	Machine	uint16;	/* Machine architecture. */
	Version	uint32;	/* ELF format version. */
	Entry	uint64;	/* Entry point. */
	Phoff	uint64;	/* Program header file offset. */
	Shoff	uint64;	/* Section header file offset. */
	Flags	uint32;	/* Architecture-specific flags. */
	Ehsize	uint16;	/* Size of ELF header in bytes. */
	Phentsize	uint16;	/* Size of program header entry. */
	Phnum	uint16;	/* Number of program header entries. */
	Shentsize	uint16;	/* Size of section header entry. */
	Shnum	uint16;	/* Number of section header entries. */
	Shstrndx	uint16;	/* Section name strings section. */
}

/*
 * ELF64 Section header.
 */

type Section64 struct {
	Name	uint32;	/* Section name (index into the
					   section header string table). */
	Type	uint32;	/* Section type. */
	Flags	uint64;	/* Section flags. */
	Addr	uint64;	/* Address in memory image. */
	Off	uint64;	/* Offset in file. */
	Size	uint64;	/* Size in bytes. */
	Link	uint32;	/* Index of a related section. */
	Info	uint32;	/* Depends on section type. */
	Addralign	uint64;	/* Alignment in bytes. */
	Entsize	uint64;	/* Size of each entry in section. */
}

/*
 * ELF64 Program header.
 */

type Prog64 struct {
	Type	uint32;		/* Entry type. */
	Flags	uint32;	/* Access permission flags. */
	Off	uint64;	/* File offset of contents. */
	Vaddr	uint64;	/* Virtual address in memory image. */
	Paddr	uint64;	/* Physical address (not used). */
	Filesz	uint64;	/* Size of contents in file. */
	Memsz	uint64;	/* Size of contents in memory. */
	Align	uint64;	/* Alignment in memory and file. */
}

/*
 * ELF64 Dynamic structure.  The ".dynamic" section contains an array of them.
 */

type Dyn64 struct {
	Tag	int64;		/* Entry type. */
	Val	uint64;		/* Integer/address value */
}

/*
 * Relocation entries.
 */

/* ELF64 relocations that don't need an addend field. */
type Rel64 struct {
	Off	uint64;	/* Location to be relocated. */
	Info	uint64;		/* Relocation type and symbol index. */
}

/* ELF64 relocations that need an addend field. */
type Rela64 struct {
	Off	uint64;	/* Location to be relocated. */
	Info	uint64;		/* Relocation type and symbol index. */
	Addend	int64;	/* Addend. */
}

func R_SYM64(info uint64) uint32 {
	return uint32(info>>32)
}
func R_TYPE64(info uint64) uint32 {
	return uint32(info)
}
func R_INFO(sym, typ uint32) uint64 {
	return uint64(sym)<<32 | uint64(typ)
}


/*
 * ELF64 symbol table entries.
 */
type Sym64 struct {
	Name	uint32;	/* String table index of name. */
	Info		uint8;	/* Type and binding information. */
	Other	uint8;	/* Reserved (not used). */
	Shndx	uint16;	/* Section index of symbol. */
	Value	uint64;	/* Symbol value. */
	Size	uint64;	/* Size of associated object. */
}


type intName struct {
	i uint32;
	s string;
}

func stringName(i uint32, names []intName, goSyntax bool) string {
	for _, n := range names {
		if n.i == i {
			if goSyntax {
				return "elf." + n.s
			}
			return n.s
		}
	}

	// second pass - look for smaller to add with.
	// assume sorted already
	for j := len(names)-1; j>=0; j-- {
		n := names[j];
		if n.i < i {
			s := n.s;
			if goSyntax {
				s = "elf." + s;
			}
			return s + "+" + strconv.Uitoa64(uint64(i - n.i));
		}
	}

	return strconv.Uitoa64(uint64(i))
}

func flagName(i uint32, names []intName, goSyntax bool) string {
	s := "";
	for _, n := range names {
		if n.i & i == n.i {
			if len(s) > 0 {
				s += "+";
			}
			if goSyntax {
				s += "elf.";
			}
			s += n.s;
			i -= n.i;
		}
	}
	if len(s) == 0 {
		return "0x" + strconv.Uitob64(uint64(i), 16)
	}
	if i != 0 {
		s += "+0x" + strconv.Uitob64(uint64(i), 16)
	}
	return s
}