path: root/src/pkg/debug/elf/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;
}

const Sym32Size = 16

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. */
}

const Sym64Size = 24

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;
}