/*
* Copyright (c) Christos Zoulas 2003.
* 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 immediately at the beginning of the file, without modification,
* 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.
*/
/*
* @(#)Id: readelf.h,v 1.9 2002/05/16 18:45:56 christos Exp
*
* Provide elf data structures for non-elf machines, allowing file
* non-elf hosts to determine if an elf binary is stripped.
* Note: cobbled from the linux header file, with modifications
*/
#ifndef __fake_elf_h__
#define __fake_elf_h__
#if HAVE_STDINT_H
#include <stdint.h>
#endif
typedef uint32_t Elf32_Addr;
typedef uint32_t Elf32_Off;
typedef uint16_t Elf32_Half;
typedef uint32_t Elf32_Word;
typedef uint8_t Elf32_Char;
typedef uint64_t Elf64_Addr;
typedef uint64_t Elf64_Off;
typedef uint64_t Elf64_Xword;
typedef uint16_t Elf64_Half;
typedef uint32_t Elf64_Word;
typedef uint8_t Elf64_Char;
#define EI_NIDENT 16
typedef struct {
Elf32_Word a_type; /* 32-bit id */
Elf32_Word a_v; /* 32-bit id */
} Aux32Info;
typedef struct {
Elf64_Xword a_type; /* 64-bit id */
Elf64_Xword a_v; /* 64-bit id */
} Aux64Info;
#define AT_NULL 0 /* end of vector */
#define AT_IGNORE 1 /* entry should be ignored */
#define AT_EXECFD 2 /* file descriptor of program */
#define AT_PHDR 3 /* program headers for program */
#define AT_PHENT 4 /* size of program header entry */
#define AT_PHNUM 5 /* number of program headers */
#define AT_PAGESZ 6 /* system page size */
#define AT_BASE 7 /* base address of interpreter */
#define AT_FLAGS 8 /* flags */
#define AT_ENTRY 9 /* entry point of program */
#define AT_LINUX_NOTELF 10 /* program is not ELF */
#define AT_LINUX_UID 11 /* real uid */
#define AT_LINUX_EUID 12 /* effective uid */
#define AT_LINUX_GID 13 /* real gid */
#define AT_LINUX_EGID 14 /* effective gid */
#define AT_LINUX_PLATFORM 15 /* string identifying CPU for optimizations */
#define AT_LINUX_HWCAP 16 /* arch dependent hints at CPU capabilities */
#define AT_LINUX_CLKTCK 17 /* frequency at which times() increments */
/* AT_* values 18 through 22 are reserved */
#define AT_LINUX_SECURE 23 /* secure mode boolean */
#define AT_LINUX_BASE_PLATFORM 24 /* string identifying real platform, may
* differ from AT_PLATFORM. */
#define AT_LINUX_RANDOM 25 /* address of 16 random bytes */
#define AT_LINUX_HWCAP2 26 /* extension of AT_HWCAP */
#define AT_LINUX_EXECFN 31 /* filename of program */
typedef struct {
Elf32_Char e_ident[EI_NIDENT];
Elf32_Half e_type;
Elf32_Half e_machine;
Elf32_Word e_version;
Elf32_Addr e_entry; /* Entry point */
Elf32_Off e_phoff;
Elf32_Off e_shoff;
Elf32_Word e_flags;
Elf32_Half e_ehsize;
Elf32_Half e_phentsize;
Elf32_Half e_phnum;
Elf32_Half e_shentsize;
Elf32_Half e_shnum;
Elf32_Half e_shstrndx;
} Elf32_Ehdr;
typedef struct {
Elf64_Char e_ident[EI_NIDENT];
Elf64_Half e_type;
Elf64_Half e_machine;
Elf64_Word e_version;
Elf64_Addr e_entry; /* Entry point */
Elf64_Off e_phoff;
Elf64_Off e_shoff;
Elf64_Word e_flags;
Elf64_Half e_ehsize;
Elf64_Half e_phentsize;
Elf64_Half e_phnum;
Elf64_Half e_shentsize;
Elf64_Half e_shnum;
Elf64_Half e_shstrndx;
} Elf64_Ehdr;
/* e_type */
#define ET_REL 1
#define ET_EXEC 2
#define ET_DYN 3
#define ET_CORE 4
/* e_machine (used only for SunOS 5.x hardware capabilities) */
#define EM_SPARC 2
#define EM_386 3
#define EM_SPARC32PLUS 18
#define EM_SPARCV9 43
#define EM_IA_64 50
#define EM_AMD64 62
/* sh_type */
#define SHT_SYMTAB 2
#define SHT_NOTE 7
#define SHT_DYNSYM 11
#define SHT_SUNW_cap 0x6ffffff5 /* SunOS 5.x hw/sw capabilities */
/* elf type */
#define ELFDATANONE 0 /* e_ident[EI_DATA] */
#define ELFDATA2LSB 1
#define ELFDATA2MSB 2
/* elf class */
#define ELFCLASSNONE 0
#define ELFCLASS32 1
#define ELFCLASS64 2
/* magic number */
#define EI_MAG0 0 /* e_ident[] indexes */
#define EI_MAG1 1
#define EI_MAG2 2
#define EI_MAG3 3
#define EI_CLASS 4
#define EI_DATA 5
#define EI_VERSION 6
#define EI_PAD 7
#define ELFMAG0 0x7f /* EI_MAG */
#define ELFMAG1 'E'
#define ELFMAG2 'L'
#define ELFMAG3 'F'
#define ELFMAG "\177ELF"
#define OLFMAG1 'O'
#define OLFMAG "\177OLF"
typedef struct {
Elf32_Word p_type;
Elf32_Off p_offset;
Elf32_Addr p_vaddr;
Elf32_Addr p_paddr;
Elf32_Word p_filesz;
Elf32_Word p_memsz;
Elf32_Word p_flags;
Elf32_Word p_align;
} Elf32_Phdr;
typedef struct {
Elf64_Word p_type;
Elf64_Word p_flags;
Elf64_Off p_offset;
Elf64_Addr p_vaddr;
Elf64_Addr p_paddr;
Elf64_Xword p_filesz;
Elf64_Xword p_memsz;
Elf64_Xword p_align;
} Elf64_Phdr;
#define PT_NULL 0 /* p_type */
#define PT_LOAD 1
#define PT_DYNAMIC 2
#define PT_INTERP 3
#define PT_NOTE 4
#define PT_SHLIB 5
#define PT_PHDR 6
#define PT_NUM 7
typedef struct {
Elf32_Word sh_name;
Elf32_Word sh_type;
Elf32_Word sh_flags;
Elf32_Addr sh_addr;
Elf32_Off sh_offset;
Elf32_Word sh_size;
Elf32_Word sh_link;
Elf32_Word sh_info;
Elf32_Word sh_addralign;
Elf32_Word sh_entsize;
} Elf32_Shdr;
typedef struct {
Elf64_Word sh_name;
Elf64_Word sh_type;
Elf64_Off sh_flags;
Elf64_Addr sh_addr;
Elf64_Off sh_offset;
Elf64_Off sh_size;
Elf64_Word sh_link;
Elf64_Word sh_info;
Elf64_Off sh_addralign;
Elf64_Off sh_entsize;
} Elf64_Shdr;
#define NT_NETBSD_CORE_PROCINFO 1
#define NT_NETBSD_CORE_AUXV 2
struct NetBSD_elfcore_procinfo {
/* Version 1 fields start here. */
uint32_t cpi_version; /* our version */
uint32_t cpi_cpisize; /* sizeof(this struct) */
uint32_t cpi_signo; /* killing signal */
uint32_t cpi_sigcode; /* signal code */
uint32_t cpi_sigpend[4]; /* pending signals */
uint32_t cpi_sigmask[4]; /* blocked signals */
uint32_t cpi_sigignore[4]; /* ignored signals */
uint32_t cpi_sigcatch[4]; /* caught signals */
int32_t cpi_pid; /* process ID */
int32_t cpi_ppid; /* parent process ID */
int32_t cpi_pgrp; /* process group ID */
int32_t cpi_sid; /* session ID */
uint32_t cpi_ruid; /* real user ID */
uint32_t cpi_euid; /* effective user ID */
uint32_t cpi_svuid; /* saved user ID */
uint32_t cpi_rgid; /* real group ID */
uint32_t cpi_egid; /* effective group ID */
uint32_t cpi_svgid; /* saved group ID */
uint32_t cpi_nlwps; /* number of LWPs */
int8_t cpi_name[32]; /* copy of p->p_comm */
/* Add version 2 fields below here. */
int32_t cpi_siglwp; /* LWP target of killing signal */
};
/* Note header in a PT_NOTE section */
typedef struct elf_note {
Elf32_Word n_namesz; /* Name size */
Elf32_Word n_descsz; /* Content size */
Elf32_Word n_type; /* Content type */
} Elf32_Nhdr;
typedef struct {
Elf64_Word n_namesz;
Elf64_Word n_descsz;
Elf64_Word n_type;
} Elf64_Nhdr;
/* Notes used in ET_CORE */
#define NT_PRSTATUS 1
#define NT_PRFPREG 2
#define NT_PRPSINFO 3
#define NT_PRXREG 4
#define NT_TASKSTRUCT 4
#define NT_PLATFORM 5
#define NT_AUXV 6
/* Note types used in executables */
/* NetBSD executables (name = "NetBSD") */
#define NT_NETBSD_VERSION 1
#define NT_NETBSD_EMULATION 2
#define NT_FREEBSD_VERSION 1
#define NT_OPENBSD_VERSION 1
#define NT_DRAGONFLY_VERSION 1
/*
* GNU executables (name = "GNU")
* word[0]: GNU OS tags
* word[1]: major version
* word[2]: minor version
* word[3]: tiny version
*/
#define NT_GNU_VERSION 1
/* GNU OS tags */
#define GNU_OS_LINUX 0
#define GNU_OS_HURD 1
#define GNU_OS_SOLARIS 2
#define GNU_OS_KFREEBSD 3
#define GNU_OS_KNETBSD 4
/*
* GNU Hardware capability information
* word[0]: Number of entries
* word[1]: Bitmask of enabled entries
* Followed by a byte id, and a NUL terminated string per entry
*/
#define NT_GNU_HWCAP 2
/*
* GNU Build ID generated by ld
* 160 bit SHA1 [default]
* 128 bit md5 or uuid
*/
#define NT_GNU_BUILD_ID 3
/*
* NetBSD-specific note type: PaX.
* There should be 1 NOTE per executable.
* name: PaX\0
* namesz: 4
* desc:
* word[0]: capability bitmask
* descsz: 4
*/
#define NT_NETBSD_PAX 3
#define NT_NETBSD_PAX_MPROTECT 0x01 /* Force enable Mprotect */
#define NT_NETBSD_PAX_NOMPROTECT 0x02 /* Force disable Mprotect */
#define NT_NETBSD_PAX_GUARD 0x04 /* Force enable Segvguard */
#define NT_NETBSD_PAX_NOGUARD 0x08 /* Force disable Servguard */
#define NT_NETBSD_PAX_ASLR 0x10 /* Force enable ASLR */
#define NT_NETBSD_PAX_NOASLR 0x20 /* Force disable ASLR */
/*
* NetBSD-specific note type: MACHINE_ARCH.
* There should be 1 NOTE per executable.
* name: NetBSD\0
* namesz: 7
* desc: string
* descsz: variable
*/
#define NT_NETBSD_MARCH 5
/*
* NetBSD-specific note type: COMPILER MODEL.
* There should be 1 NOTE per executable.
* name: NetBSD\0
* namesz: 7
* desc: string
* descsz: variable
*/
#define NT_NETBSD_CMODEL 6
/*
* Golang-specific note type
* name: Go\0\0
* namesz: 4
* desc: base-64 build id.
* descsz: < 128
*/
#define NT_GO_BUILD_ID 4
/*
* FreeBSD specific notes
*/
#define NT_FREEBSD_PROCSTAT_AUXV 16
#if !defined(ELFSIZE) && defined(ARCH_ELFSIZE)
#define ELFSIZE ARCH_ELFSIZE
#endif
/* SunOS 5.x hardware/software capabilities */
typedef struct {
Elf32_Word c_tag;
union {
Elf32_Word c_val;
Elf32_Addr c_ptr;
} c_un;
} Elf32_Cap;
typedef struct {
Elf64_Xword c_tag;
union {
Elf64_Xword c_val;
Elf64_Addr c_ptr;
} c_un;
} Elf64_Cap;
/* SunOS 5.x hardware/software capability tags */
#define CA_SUNW_NULL 0
#define CA_SUNW_HW_1 1
#define CA_SUNW_SF_1 2
/* SunOS 5.x software capabilities */
#define SF1_SUNW_FPKNWN 0x01
#define SF1_SUNW_FPUSED 0x02
#define SF1_SUNW_MASK 0x03
/* SunOS 5.x hardware capabilities: sparc */
#define AV_SPARC_MUL32 0x0001
#define AV_SPARC_DIV32 0x0002
#define AV_SPARC_FSMULD 0x0004
#define AV_SPARC_V8PLUS 0x0008
#define AV_SPARC_POPC 0x0010
#define AV_SPARC_VIS 0x0020
#define AV_SPARC_VIS2 0x0040
#define AV_SPARC_ASI_BLK_INIT 0x0080
#define AV_SPARC_FMAF 0x0100
#define AV_SPARC_FJFMAU 0x4000
#define AV_SPARC_IMA 0x8000
/* SunOS 5.x hardware capabilities: 386 */
#define AV_386_FPU 0x00000001
#define AV_386_TSC 0x00000002
#define AV_386_CX8 0x00000004
#define AV_386_SEP 0x00000008
#define AV_386_AMD_SYSC 0x00000010
#define AV_386_CMOV 0x00000020
#define AV_386_MMX 0x00000040
#define AV_386_AMD_MMX 0x00000080
#define AV_386_AMD_3DNow 0x00000100
#define AV_386_AMD_3DNowx 0x00000200
#define AV_386_FXSR 0x00000400
#define AV_386_SSE 0x00000800
#define AV_386_SSE2 0x00001000
#define AV_386_PAUSE 0x00002000
#define AV_386_SSE3 0x00004000
#define AV_386_MON 0x00008000
#define AV_386_CX16 0x00010000
#define AV_386_AHF 0x00020000
#define AV_386_TSCP 0x00040000
#define AV_386_AMD_SSE4A 0x00080000
#define AV_386_POPCNT 0x00100000
#define AV_386_AMD_LZCNT 0x00200000
#define AV_386_SSSE3 0x00400000
#define AV_386_SSE4_1 0x00800000
#define AV_386_SSE4_2 0x01000000
/*
* Dynamic Section structure array
*/
typedef struct {
Elf32_Word d_tag; /* entry tag value */
union {
Elf32_Addr d_ptr;
Elf32_Word d_val;
} d_un;
} Elf32_Dyn;
typedef struct {
Elf64_Xword d_tag; /* entry tag value */
union {
Elf64_Addr d_ptr;
Elf64_Xword d_val;
} d_un;
} Elf64_Dyn;
/* d_tag */
#define DT_NULL 0 /* Marks end of dynamic array */
#define DT_NEEDED 1 /* Name of needed library (DT_STRTAB offset) */
#define DT_PLTRELSZ 2 /* Size, in bytes, of relocations in PLT */
#define DT_PLTGOT 3 /* Address of PLT and/or GOT */
#define DT_HASH 4 /* Address of symbol hash table */
#define DT_STRTAB 5 /* Address of string table */
#define DT_SYMTAB 6 /* Address of symbol table */
#define DT_RELA 7 /* Address of Rela relocation table */
#define DT_RELASZ 8 /* Size, in bytes, of DT_RELA table */
#define DT_RELAENT 9 /* Size, in bytes, of one DT_RELA entry */
#define DT_STRSZ 10 /* Size, in bytes, of DT_STRTAB table */
#define DT_SYMENT 11 /* Size, in bytes, of one DT_SYMTAB entry */
#define DT_INIT 12 /* Address of initialization function */
#define DT_FINI 13 /* Address of termination function */
#define DT_SONAME 14 /* Shared object name (DT_STRTAB offset) */
#define DT_RPATH 15 /* Library search path (DT_STRTAB offset) */
#define DT_SYMBOLIC 16 /* Start symbol search within local object */
#define DT_REL 17 /* Address of Rel relocation table */
#define DT_RELSZ 18 /* Size, in bytes, of DT_REL table */
#define DT_RELENT 19 /* Size, in bytes, of one DT_REL entry */
#define DT_PLTREL 20 /* Type of PLT relocation entries */
#define DT_DEBUG 21 /* Used for debugging; unspecified */
#define DT_TEXTREL 22 /* Relocations might modify non-writable seg */
#define DT_JMPREL 23 /* Address of relocations associated with PLT */
#define DT_BIND_NOW 24 /* Process all relocations at load-time */
#define DT_INIT_ARRAY 25 /* Address of initialization function array */
#define DT_FINI_ARRAY 26 /* Size, in bytes, of DT_INIT_ARRAY array */
#define DT_INIT_ARRAYSZ 27 /* Address of termination function array */
#define DT_FINI_ARRAYSZ 28 /* Size, in bytes, of DT_FINI_ARRAY array*/
#define DT_RUNPATH 29 /* overrides DT_RPATH */
#define DT_FLAGS 30 /* Encodes ORIGIN, SYMBOLIC, TEXTREL, BIND_NOW, STATIC_TLS */
#define DT_ENCODING 31 /* ??? */
#define DT_PREINIT_ARRAY 32 /* Address of pre-init function array */
#define DT_PREINIT_ARRAYSZ 33 /* Size, in bytes, of DT_PREINIT_ARRAY array */
#define DT_NUM 34
#define DT_LOOS 0x60000000 /* Operating system specific range */
#define DT_VERSYM 0x6ffffff0 /* Symbol versions */
#define DT_FLAGS_1 0x6ffffffb /* ELF dynamic flags */
#define DT_VERDEF 0x6ffffffc /* Versions defined by file */
#define DT_VERDEFNUM 0x6ffffffd /* Number of versions defined by file */
#define DT_VERNEED 0x6ffffffe /* Versions needed by file */
#define DT_VERNEEDNUM 0x6fffffff /* Number of versions needed by file */
#define DT_HIOS 0x6fffffff
#define DT_LOPROC 0x70000000 /* Processor-specific range */
#define DT_HIPROC 0x7fffffff
/* Flag values for DT_FLAGS */
#define DF_ORIGIN 0x00000001 /* uses $ORIGIN */
#define DF_SYMBOLIC 0x00000002 /* */
#define DF_TEXTREL 0x00000004 /* */
#define DF_BIND_NOW 0x00000008 /* */
#define DF_STATIC_TLS 0x00000010 /* */
/* Flag values for DT_FLAGS_1 */
#define DF_1_NOW 0x00000001 /* Same as DF_BIND_NOW */
#define DF_1_GLOBAL 0x00000002 /* Unused */
#define DF_1_GROUP 0x00000004 /* Is member of group */
#define DF_1_NODELETE 0x00000008 /* Cannot be deleted from process */
#define DF_1_LOADFLTR 0x00000010 /* Immediate loading of filters */
#define DF_1_INITFIRST 0x00000020 /* init/fini takes priority */
#define DF_1_NOOPEN 0x00000040 /* Do not allow loading on dlopen() */
#define DF_1_ORIGIN 0x00000080 /* Require $ORIGIN processing */
#define DF_1_DIRECT 0x00000100 /* Enable direct bindings */
#define DF_1_INTERPOSE 0x00000400 /* Is an interposer */
#define DF_1_NODEFLIB 0x00000800 /* Ignore default library search path */
#define DF_1_NODUMP 0x00001000 /* Cannot be dumped with dldump(3C) */
#define DF_1_CONFALT 0x00002000 /* Configuration alternative */
#define DF_1_ENDFILTEE 0x00004000 /* Filtee ends filter's search */
#define DF_1_DISPRELDNE 0x00008000 /* Did displacement relocation */
#define DF_1_DISPRELPND 0x00010000 /* Pending displacement relocation */
#define DF_1_NODIRECT 0x00020000 /* Has non-direct bindings */
#define DF_1_IGNMULDEF 0x00040000 /* Used internally */
#define DF_1_NOKSYMS 0x00080000 /* Used internally */
#define DF_1_NOHDR 0x00100000 /* Used internally */
#define DF_1_EDITED 0x00200000 /* Has been modified since build */
#define DF_1_NORELOC 0x00400000 /* Used internally */
#define DF_1_SYMINTPOSE 0x00800000 /* Has individual symbol interposers */
#define DF_1_GLOBAUDIT 0x01000000 /* Require global auditing */
#define DF_1_SINGLETON 0x02000000 /* Has singleton symbols */
#define DF_1_STUB 0x04000000 /* Stub */
#define DF_1_PIE 0x08000000 /* Position Independent Executable */
#endif