/* * 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 #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