/* $NetBSD: exec_elf.h,v 1.95 2008/04/28 20:24:10 martin Exp $ */ /*- * Copyright (c) 1994 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Christos Zoulas. * * 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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. */ #ifndef _SYS_EXEC_ELF_H_ #define _SYS_EXEC_ELF_H_ /* * The current ELF ABI specification is available at: * http://www.sco.com/developers/gabi/ * * Current header definitions are in: * http://www.sco.com/developers/gabi/latest/ch4.eheader.html */ #if defined(_KERNEL) || defined(_STANDALONE) #include #else #include #endif /* _KERNEL || _STANDALONE */ #if defined(ELFSIZE) #define CONCAT(x,y) __CONCAT(x,y) #define ELFNAME(x) CONCAT(elf,CONCAT(ELFSIZE,CONCAT(_,x))) #define ELFNAME2(x,y) CONCAT(x,CONCAT(_elf,CONCAT(ELFSIZE,CONCAT(_,y)))) #define ELFNAMEEND(x) CONCAT(x,CONCAT(_elf,ELFSIZE)) #define ELFDEFNNAME(x) CONCAT(ELF,CONCAT(ELFSIZE,CONCAT(_,x))) #endif #if HAVE_NBTOOL_CONFIG_H #include #else #include "elf_machdep.h" #endif typedef uint8_t Elf_Byte; typedef uint32_t Elf32_Addr; #define ELF32_FSZ_ADDR 4 typedef uint32_t Elf32_Off; #define ELF32_FSZ_OFF 4 typedef int32_t Elf32_Sword; #define ELF32_FSZ_SWORD 4 typedef uint32_t Elf32_Word; #define ELF32_FSZ_WORD 4 typedef uint16_t Elf32_Half; #define ELF32_FSZ_HALF 2 typedef uint64_t Elf64_Addr; #define ELF64_FSZ_ADDR 8 typedef uint64_t Elf64_Off; #define ELF64_FSZ_OFF 8 typedef int32_t Elf64_Shalf; #define ELF64_FSZ_SHALF 4 #ifndef ELF64_FSZ_SWORD typedef int32_t Elf64_Sword; #define ELF64_FSZ_SWORD 4 #endif /* ELF64_FSZ_SWORD */ #ifndef ELF64_FSZ_WORD typedef uint32_t Elf64_Word; #define ELF64_FSZ_WORD 4 #endif /* ELF64_FSZ_WORD */ typedef int64_t Elf64_Sxword; #define ELF64_FSZ_XWORD 8 typedef uint64_t Elf64_Xword; #define ELF64_FSZ_XWORD 8 typedef uint32_t Elf64_Half; #define ELF64_FSZ_HALF 4 typedef uint16_t Elf64_Quarter; #define ELF64_FSZ_QUARTER 2 /* * ELF Header */ #define ELF_NIDENT 16 typedef struct { unsigned char e_ident[ELF_NIDENT]; /* Id bytes */ Elf32_Half e_type; /* file type */ Elf32_Half e_machine; /* machine type */ Elf32_Word e_version; /* version number */ Elf32_Addr e_entry; /* entry point */ Elf32_Off e_phoff; /* Program hdr offset */ Elf32_Off e_shoff; /* Section hdr offset */ Elf32_Word e_flags; /* Processor flags */ Elf32_Half e_ehsize; /* sizeof ehdr */ Elf32_Half e_phentsize; /* Program header entry size */ Elf32_Half e_phnum; /* Number of program headers */ Elf32_Half e_shentsize; /* Section header entry size */ Elf32_Half e_shnum; /* Number of section headers */ Elf32_Half e_shstrndx; /* String table index */ } Elf32_Ehdr; typedef struct { unsigned char e_ident[ELF_NIDENT]; /* Id bytes */ Elf64_Quarter e_type; /* file type */ Elf64_Quarter e_machine; /* machine type */ Elf64_Half e_version; /* version number */ Elf64_Addr e_entry; /* entry point */ Elf64_Off e_phoff; /* Program hdr offset */ Elf64_Off e_shoff; /* Section hdr offset */ Elf64_Half e_flags; /* Processor flags */ Elf64_Quarter e_ehsize; /* sizeof ehdr */ Elf64_Quarter e_phentsize; /* Program header entry size */ Elf64_Quarter e_phnum; /* Number of program headers */ Elf64_Quarter e_shentsize; /* Section header entry size */ Elf64_Quarter e_shnum; /* Number of section headers */ Elf64_Quarter e_shstrndx; /* String table index */ } Elf64_Ehdr; /* e_ident offsets */ #define EI_MAG0 0 /* '\177' */ #define EI_MAG1 1 /* 'E' */ #define EI_MAG2 2 /* 'L' */ #define EI_MAG3 3 /* 'F' */ #define EI_CLASS 4 /* File class */ #define EI_DATA 5 /* Data encoding */ #define EI_VERSION 6 /* File version */ #define EI_OSABI 7 /* Operating system/ABI identification */ #define EI_ABIVERSION 8 /* ABI version */ #define EI_PAD 9 /* Start of padding bytes up to EI_NIDENT*/ #define EI_NIDENT 16 /* First non-ident header byte */ /* e_ident[EI_MAG0,EI_MAG3] */ #define ELFMAG0 0x7f #define ELFMAG1 'E' #define ELFMAG2 'L' #define ELFMAG3 'F' #define ELFMAG "\177ELF" #define SELFMAG 4 /* e_ident[EI_CLASS] */ #define ELFCLASSNONE 0 /* Invalid class */ #define ELFCLASS32 1 /* 32-bit objects */ #define ELFCLASS64 2 /* 64-bit objects */ #define ELFCLASSNUM 3 /* e_ident[EI_DATA] */ #define ELFDATANONE 0 /* Invalid data encoding */ #define ELFDATA2LSB 1 /* 2's complement values, LSB first */ #define ELFDATA2MSB 2 /* 2's complement values, MSB first */ /* e_ident[EI_VERSION] */ #define EV_NONE 0 /* Invalid version */ #define EV_CURRENT 1 /* Current version */ #define EV_NUM 2 /* e_ident[EI_OSABI] */ #define ELFOSABI_SYSV 0 /* UNIX System V ABI */ #define ELFOSABI_HPUX 1 /* HP-UX operating system */ #define ELFOSABI_NETBSD 2 /* NetBSD */ #define ELFOSABI_LINUX 3 /* GNU/Linux */ #define ELFOSABI_HURD 4 /* GNU/Hurd */ #define ELFOSABI_86OPEN 5 /* 86Open */ #define ELFOSABI_SOLARIS 6 /* Solaris */ #define ELFOSABI_MONTEREY 7 /* Monterey */ #define ELFOSABI_IRIX 8 /* IRIX */ #define ELFOSABI_FREEBSD 9 /* FreeBSD */ #define ELFOSABI_TRU64 10 /* TRU64 UNIX */ #define ELFOSABI_MODESTO 11 /* Novell Modesto */ #define ELFOSABI_OPENBSD 12 /* OpenBSD */ /* Unofficial OSABIs follow */ #define ELFOSABI_ARM 97 /* ARM */ #define ELFOSABI_STANDALONE 255 /* Standalone (embedded) application */ /* e_type */ #define ET_NONE 0 /* No file type */ #define ET_REL 1 /* Relocatable file */ #define ET_EXEC 2 /* Executable file */ #define ET_DYN 3 /* Shared object file */ #define ET_CORE 4 /* Core file */ #define ET_NUM 5 #define ET_LOOS 0xfe00 /* Operating system specific range */ #define ET_HIOS 0xfeff #define ET_LOPROC 0xff00 /* Processor-specific range */ #define ET_HIPROC 0xffff /* e_machine */ #define EM_NONE 0 /* No machine */ #define EM_M32 1 /* AT&T WE 32100 */ #define EM_SPARC 2 /* SPARC */ #define EM_386 3 /* Intel 80386 */ #define EM_68K 4 /* Motorola 68000 */ #define EM_88K 5 /* Motorola 88000 */ #define EM_486 6 /* Intel 80486 */ #define EM_860 7 /* Intel 80860 */ #define EM_MIPS 8 /* MIPS I Architecture */ #define EM_S370 9 /* Amdahl UTS on System/370 */ #define EM_MIPS_RS3_LE 10 /* MIPS RS3000 Little-endian */ /* 11-14 - Reserved */ #define EM_RS6000 11 /* IBM RS/6000 XXX reserved */ #define EM_PARISC 15 /* Hewlett-Packard PA-RISC */ #define EM_NCUBE 16 /* NCube XXX reserved */ #define EM_VPP500 17 /* Fujitsu VPP500 */ #define EM_SPARC32PLUS 18 /* Enhanced instruction set SPARC */ #define EM_960 19 /* Intel 80960 */ #define EM_PPC 20 /* PowerPC */ #define EM_PPC64 21 /* 64-bit PowerPC */ /* 22-35 - Reserved */ #define EM_V800 36 /* NEC V800 */ #define EM_FR20 37 /* Fujitsu FR20 */ #define EM_RH32 38 /* TRW RH-32 */ #define EM_RCE 39 /* Motorola RCE */ #define EM_ARM 40 /* Advanced RISC Machines ARM */ #define EM_ALPHA 41 /* DIGITAL Alpha */ #define EM_SH 42 /* Hitachi Super-H */ #define EM_SPARCV9 43 /* SPARC Version 9 */ #define EM_TRICORE 44 /* Siemens Tricore */ #define EM_ARC 45 /* Argonaut RISC Core */ #define EM_H8_300 46 /* Hitachi H8/300 */ #define EM_H8_300H 47 /* Hitachi H8/300H */ #define EM_H8S 48 /* Hitachi H8S */ #define EM_H8_500 49 /* Hitachi H8/500 */ #define EM_IA_64 50 /* Intel Merced Processor */ #define EM_MIPS_X 51 /* Stanford MIPS-X */ #define EM_COLDFIRE 52 /* Motorola Coldfire */ #define EM_68HC12 53 /* Motorola MC68HC12 */ #define EM_MMA 54 /* Fujitsu MMA Multimedia Accelerator */ #define EM_PCP 55 /* Siemens PCP */ #define EM_NCPU 56 /* Sony nCPU embedded RISC processor */ #define EM_NDR1 57 /* Denso NDR1 microprocessor */ #define EM_STARCORE 58 /* Motorola Star*Core processor */ #define EM_ME16 59 /* Toyota ME16 processor */ #define EM_ST100 60 /* STMicroelectronics ST100 processor */ #define EM_TINYJ 61 /* Advanced Logic Corp. TinyJ embedded family processor */ #define EM_X86_64 62 /* AMD x86-64 architecture */ #define EM_PDSP 63 /* Sony DSP Processor */ #define EM_PDP10 64 /* Digital Equipment Corp. PDP-10 */ #define EM_PDP11 65 /* Digital Equipment Corp. PDP-11 */ #define EM_FX66 66 /* Siemens FX66 microcontroller */ #define EM_ST9PLUS 67 /* STMicroelectronics ST9+ 8/16 bit microcontroller */ #define EM_ST7 68 /* STMicroelectronics ST7 8-bit microcontroller */ #define EM_68HC16 69 /* Motorola MC68HC16 Microcontroller */ #define EM_68HC11 70 /* Motorola MC68HC11 Microcontroller */ #define EM_68HC08 71 /* Motorola MC68HC08 Microcontroller */ #define EM_68HC05 72 /* Motorola MC68HC05 Microcontroller */ #define EM_SVX 73 /* Silicon Graphics SVx */ #define EM_ST19 74 /* STMicroelectronics ST19 8-bit CPU */ #define EM_VAX 75 /* Digital VAX */ #define EM_CRIS 76 /* Axis Communications 32-bit embedded processor */ #define EM_JAVELIN 77 /* Infineon Technologies 32-bit embedded CPU */ #define EM_FIREPATH 78 /* Element 14 64-bit DSP processor */ #define EM_ZSP 79 /* LSI Logic's 16-bit DSP processor */ #define EM_MMIX 80 /* Donald Knuth's educational 64-bit processor */ #define EM_HUANY 81 /* Harvard's machine-independent format */ #define EM_PRISM 82 /* SiTera Prism */ #define EM_AVR 83 /* Atmel AVR 8-bit microcontroller */ #define EM_FR30 84 /* Fujitsu FR30 */ #define EM_D10V 85 /* Mitsubishi D10V */ #define EM_D30V 86 /* Mitsubishi D30V */ #define EM_V850 87 /* NEC v850 */ #define EM_M32R 88 /* Mitsubishi M32R */ #define EM_MN10300 89 /* Matsushita MN10300 */ #define EM_MN10200 90 /* Matsushita MN10200 */ #define EM_PJ 91 /* picoJava */ #define EM_OPENRISC 92 /* OpenRISC 32-bit embedded processor */ #define EM_ARC_A5 93 /* ARC Cores Tangent-A5 */ #define EM_XTENSA 94 /* Tensilica Xtensa Architecture */ #define EM_NS32K 97 /* National Semiconductor 32000 series */ /* Unofficial machine types follow */ #define EM_AVR32 6317 /* used by NetBSD/avr32 */ #define EM_ALPHA_EXP 36902 /* used by NetBSD/alpha; obsolete */ #define EM_NUM 36903 /* * Program Header */ typedef struct { Elf32_Word p_type; /* entry type */ Elf32_Off p_offset; /* offset */ Elf32_Addr p_vaddr; /* virtual address */ Elf32_Addr p_paddr; /* physical address */ Elf32_Word p_filesz; /* file size */ Elf32_Word p_memsz; /* memory size */ Elf32_Word p_flags; /* flags */ Elf32_Word p_align; /* memory & file alignment */ } Elf32_Phdr; typedef struct { Elf64_Half p_type; /* entry type */ Elf64_Half p_flags; /* flags */ Elf64_Off p_offset; /* offset */ Elf64_Addr p_vaddr; /* virtual address */ Elf64_Addr p_paddr; /* physical address */ Elf64_Xword p_filesz; /* file size */ Elf64_Xword p_memsz; /* memory size */ Elf64_Xword p_align; /* memory & file alignment */ } Elf64_Phdr; /* p_type */ #define PT_NULL 0 /* Program header table entry unused */ #define PT_LOAD 1 /* Loadable program segment */ #define PT_DYNAMIC 2 /* Dynamic linking information */ #define PT_INTERP 3 /* Program interpreter */ #define PT_NOTE 4 /* Auxiliary information */ #define PT_SHLIB 5 /* Reserved, unspecified semantics */ #define PT_PHDR 6 /* Entry for header table itself */ #define PT_NUM 7 #define PT_LOOS 0x60000000 /* OS-specific range */ #define PT_HIOS 0x6fffffff #define PT_LOPROC 0x70000000 /* Processor-specific range */ #define PT_HIPROC 0x7fffffff #define PT_MIPS_REGINFO 0x70000000 #define PT_GNU_STACK 0x6474e551 /* p_flags */ #define PF_R 0x4 /* Segment is readable */ #define PF_W 0x2 /* Segment is writable */ #define PF_X 0x1 /* Segment is executable */ #define PF_MASKOS 0x0ff00000 /* Operating system specific values */ #define PF_MASKPROC 0xf0000000 /* Processor-specific values */ /* * Section Headers */ typedef struct { Elf32_Word sh_name; /* section name (.shstrtab index) */ Elf32_Word sh_type; /* section type */ Elf32_Word sh_flags; /* section flags */ Elf32_Addr sh_addr; /* virtual address */ Elf32_Off sh_offset; /* file offset */ Elf32_Word sh_size; /* section size */ Elf32_Word sh_link; /* link to another */ Elf32_Word sh_info; /* misc info */ Elf32_Word sh_addralign; /* memory alignment */ Elf32_Word sh_entsize; /* table entry size */ } Elf32_Shdr; typedef struct { Elf64_Half sh_name; /* section name (.shstrtab index) */ Elf64_Half sh_type; /* section type */ Elf64_Xword sh_flags; /* section flags */ Elf64_Addr sh_addr; /* virtual address */ Elf64_Off sh_offset; /* file offset */ Elf64_Xword sh_size; /* section size */ Elf64_Half sh_link; /* link to another */ Elf64_Half sh_info; /* misc info */ Elf64_Xword sh_addralign; /* memory alignment */ Elf64_Xword sh_entsize; /* table entry size */ } Elf64_Shdr; /* sh_type */ #define SHT_NULL 0 /* Section header table entry unused */ #define SHT_PROGBITS 1 /* Program information */ #define SHT_SYMTAB 2 /* Symbol table */ #define SHT_STRTAB 3 /* String table */ #define SHT_RELA 4 /* Relocation information w/ addend */ #define SHT_HASH 5 /* Symbol hash table */ #define SHT_DYNAMIC 6 /* Dynamic linking information */ #define SHT_NOTE 7 /* Auxiliary information */ #define SHT_NOBITS 8 /* No space allocated in file image */ #define SHT_REL 9 /* Relocation information w/o addend */ #define SHT_SHLIB 10 /* Reserved, unspecified semantics */ #define SHT_DYNSYM 11 /* Symbol table for dynamic linker */ #define SHT_NUM 12 #define SHT_LOOS 0x60000000 /* Operating system specific range */ #define SHT_SUNW_VERDEF 0x6ffffffd /* Versions defined by file */ #define SHT_SUNW_VERNEED 0x6ffffffe /* Versions needed by file */ #define SHT_SUNW_VERSYM 0x6fffffff /* Symbol versions */ #define SHT_HIOS 0x6fffffff #define SHT_LOPROC 0x70000000 /* Processor-specific range */ #define SHT_HIPROC 0x7fffffff #define SHT_LOUSER 0x80000000 /* Application-specific range */ #define SHT_HIUSER 0xffffffff /* sh_flags */ #define SHF_WRITE 0x1 /* Section contains writable data */ #define SHF_ALLOC 0x2 /* Section occupies memory */ #define SHF_EXECINSTR 0x4 /* Section contains executable insns */ #define SHF_MASKOS 0x0f000000 /* Operating system specific values */ #define SHF_MASKPROC 0xf0000000 /* Processor-specific values */ /* * Symbol Table */ typedef struct { Elf32_Word st_name; /* Symbol name (.symtab index) */ Elf32_Word st_value; /* value of symbol */ Elf32_Word st_size; /* size of symbol */ Elf_Byte st_info; /* type / binding attrs */ Elf_Byte st_other; /* unused */ Elf32_Half st_shndx; /* section index of symbol */ } Elf32_Sym; typedef struct { Elf64_Half st_name; /* Symbol name (.symtab index) */ Elf_Byte st_info; /* type / binding attrs */ Elf_Byte st_other; /* unused */ Elf64_Quarter st_shndx; /* section index of symbol */ Elf64_Addr st_value; /* value of symbol */ Elf64_Xword st_size; /* size of symbol */ } Elf64_Sym; /* Symbol Table index of the undefined symbol */ #define ELF_SYM_UNDEFINED 0 #define STN_UNDEF 0 /* undefined index */ /* st_info: Symbol Bindings */ #define STB_LOCAL 0 /* local symbol */ #define STB_GLOBAL 1 /* global symbol */ #define STB_WEAK 2 /* weakly defined global symbol */ #define STB_NUM 3 #define STB_LOOS 10 /* Operating system specific range */ #define STB_HIOS 12 #define STB_LOPROC 13 /* Processor-specific range */ #define STB_HIPROC 15 /* st_info: Symbol Types */ #define STT_NOTYPE 0 /* Type not specified */ #define STT_OBJECT 1 /* Associated with a data object */ #define STT_FUNC 2 /* Associated with a function */ #define STT_SECTION 3 /* Associated with a section */ #define STT_FILE 4 /* Associated with a file name */ #define STT_NUM 5 #define STT_LOOS 10 /* Operating system specific range */ #define STT_HIOS 12 #define STT_LOPROC 13 /* Processor-specific range */ #define STT_HIPROC 15 /* st_other: Visibility Types */ #define STV_DEFAULT 0 /* use binding type */ #define STV_INTERNAL 1 /* not referenced from outside */ #define STV_HIDDEN 2 /* not visible, may be used via ptr */ #define STV_PROTECTED 3 /* visible, not preemptible */ /* st_info/st_other utility macros */ #define ELF_ST_BIND(info) ((uint32_t)(info) >> 4) #define ELF_ST_TYPE(info) ((uint32_t)(info) & 0xf) #define ELF_ST_INFO(bind,type) ((Elf_Byte)(((bind) << 4) | \ ((type) & 0xf))) #define ELF_ST_VISIBILITY(other) ((uint32_t)(other) & 3) /* * Special section indexes */ #define SHN_UNDEF 0 /* Undefined section */ #define SHN_LORESERVE 0xff00 /* Reserved range */ #define SHN_ABS 0xfff1 /* Absolute symbols */ #define SHN_COMMON 0xfff2 /* Common symbols */ #define SHN_HIRESERVE 0xffff #define SHN_LOPROC 0xff00 /* Processor-specific range */ #define SHN_HIPROC 0xff1f #define SHN_LOOS 0xff20 /* Operating system specific range */ #define SHN_HIOS 0xff3f #define SHN_MIPS_ACOMMON 0xff00 #define SHN_MIPS_TEXT 0xff01 #define SHN_MIPS_DATA 0xff02 #define SHN_MIPS_SCOMMON 0xff03 /* * Relocation Entries */ typedef struct { Elf32_Word r_offset; /* where to do it */ Elf32_Word r_info; /* index & type of relocation */ } Elf32_Rel; typedef struct { Elf32_Word r_offset; /* where to do it */ Elf32_Word r_info; /* index & type of relocation */ Elf32_Sword r_addend; /* adjustment value */ } Elf32_Rela; /* r_info utility macros */ #define ELF32_R_SYM(info) ((info) >> 8) #define ELF32_R_TYPE(info) ((info) & 0xff) #define ELF32_R_INFO(sym, type) (((sym) << 8) + (unsigned char)(type)) typedef struct { Elf64_Addr r_offset; /* where to do it */ Elf64_Xword r_info; /* index & type of relocation */ } Elf64_Rel; typedef struct { Elf64_Addr r_offset; /* where to do it */ Elf64_Xword r_info; /* index & type of relocation */ Elf64_Sxword r_addend; /* adjustment value */ } Elf64_Rela; /* r_info utility macros */ #define ELF64_R_SYM(info) ((info) >> 32) #define ELF64_R_TYPE(info) ((info) & 0xffffffff) #define ELF64_R_INFO(sym,type) (((sym) << 32) + (type)) /* * 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_NUM 29 #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_1 (incomplete) */ #define DF_1_INITFIRST 0x00000020 /* Object's init/fini take priority */ /* * Auxiliary Vectors */ typedef struct { Elf32_Word a_type; /* 32-bit id */ Elf32_Word a_v; /* 32-bit id */ } Aux32Info; typedef struct { Elf64_Half a_type; /* 32-bit id */ Elf64_Xword a_v; /* 64-bit id */ } Aux64Info; /* a_type */ #define AT_NULL 0 /* Marks end of array */ #define AT_IGNORE 1 /* No meaning, a_un is undefined */ #define AT_EXECFD 2 /* Open file descriptor of object file */ #define AT_PHDR 3 /* &phdr[0] */ #define AT_PHENT 4 /* sizeof(phdr[0]) */ #define AT_PHNUM 5 /* # phdr entries */ #define AT_PAGESZ 6 /* PAGESIZE */ #define AT_BASE 7 /* Interpreter base addr */ #define AT_FLAGS 8 /* Processor flags */ #define AT_ENTRY 9 /* Entry address of executable */ #define AT_DCACHEBSIZE 10 /* Data cache block size */ #define AT_ICACHEBSIZE 11 /* Instruction cache block size */ #define AT_UCACHEBSIZE 12 /* Unified cache block size */ /* Vendor specific */ #define AT_MIPS_NOTELF 10 /* XXX a_val != 0 -> MIPS XCOFF executable */ #define AT_EUID 2000 /* euid (solaris compatible numbers) */ #define AT_RUID 2001 /* ruid (solaris compatible numbers) */ #define AT_EGID 2002 /* egid (solaris compatible numbers) */ #define AT_RGID 2003 /* rgid (solaris compatible numbers) */ /* Solaris kernel specific */ #define AT_SUN_LDELF 2004 /* dynamic linker's ELF header */ #define AT_SUN_LDSHDR 2005 /* dynamic linker's section header */ #define AT_SUN_LDNAME 2006 /* dynamic linker's name */ #define AT_SUN_LPGSIZE 2007 /* large pagesize */ /* Other information */ #define AT_SUN_PLATFORM 2008 /* sysinfo(SI_PLATFORM) */ #define AT_SUN_HWCAP 2009 /* process hardware capabilities */ #define AT_SUN_IFLUSH 2010 /* do we need to flush the instruction cache? */ #define AT_SUN_CPU 2011 /* CPU name */ /* ibcs2 emulation band aid */ #define AT_SUN_EMUL_ENTRY 2012 /* coff entry point */ #define AT_SUN_EMUL_EXECFD 2013 /* coff file descriptor */ /* Executable's fully resolved name */ #define AT_SUN_EXECNAME 2014 /* * Note Headers */ typedef struct { Elf32_Word n_namesz; Elf32_Word n_descsz; Elf32_Word n_type; } Elf32_Nhdr; typedef struct { Elf64_Half n_namesz; Elf64_Half n_descsz; Elf64_Half n_type; } Elf64_Nhdr; #define ELF_NOTE_TYPE_ABI_TAG 1 /* GNU-specific note name and description sizes */ #define ELF_NOTE_ABI_NAMESZ 4 #define ELF_NOTE_ABI_DESCSZ 16 /* GNU-specific note name */ #define ELF_NOTE_ABI_NAME "GNU\0" /* GNU-specific OS/version value stuff */ #define ELF_NOTE_ABI_OS_LINUX 0 #define ELF_NOTE_ABI_OS_HURD 1 #define ELF_NOTE_ABI_OS_SOLARIS 2 /* NetBSD-specific note type: Emulation name. desc is emul name string. */ #define ELF_NOTE_TYPE_NETBSD_TAG 1 /* NetBSD-specific note name and description sizes */ #define ELF_NOTE_NETBSD_NAMESZ 7 #define ELF_NOTE_NETBSD_DESCSZ 4 /* NetBSD-specific note name */ #define ELF_NOTE_NETBSD_NAME "NetBSD\0\0" /* NetBSD-specific note type: Checksum. There should be 1 NOTE per PT_LOAD section. desc is a tuple of (16),(16),. */ #define ELF_NOTE_TYPE_CHECKSUM_TAG 2 #define ELF_NOTE_CHECKSUM_CRC32 1 #define ELF_NOTE_CHECKSUM_MD5 2 #define ELF_NOTE_CHECKSUM_SHA1 3 #define ELF_NOTE_CHECKSUM_SHA256 4 /* NetBSD-specific note type: PaX. There should be 1 NOTE per executable. section. desc is a 32 bit bitmask */ #define ELF_NOTE_TYPE_PAX_TAG 3 #define ELF_NOTE_PAX_MPROTECT 0x01 /* Force enable Mprotect */ #define ELF_NOTE_PAX_NOMPROTECT 0x02 /* Force disable Mprotect */ #define ELF_NOTE_PAX_GUARD 0x04 /* Force enable Segvguard */ #define ELF_NOTE_PAX_NOGUARD 0x08 /* Force disable Servguard */ #define ELF_NOTE_PAX_ASLR 0x10 /* Force enable ASLR */ #define ELF_NOTE_PAX_NOASLR 0x20 /* Force disable ASLR */ #define ELF_NOTE_PAX_NAMESZ 4 #define ELF_NOTE_PAX_NAME "PaX\0" #define ELF_NOTE_PAX_DESCSZ 4 /* * NetBSD-specific core file information. * * NetBSD ELF core files use notes to provide information about * the process's state. The note name is "NetBSD-CORE" for * information that is global to the process, and "NetBSD-CORE@nn", * where "nn" is the lwpid of the LWP that the information belongs * to (such as register state). * * We use the following note identifiers: * * ELF_NOTE_NETBSD_CORE_PROCINFO * Note is a "netbsd_elfcore_procinfo" structure. * * We also use ptrace(2) request numbers (the ones that exist in * machine-dependent space) to identify register info notes. The * info in such notes is in the same format that ptrace(2) would * export that information. * * Please try to keep the members of this structure nicely aligned, * and if you add elements, add them to the end and bump the version. */ #define ELF_NOTE_NETBSD_CORE_NAME "NetBSD-CORE" #define ELF_NOTE_NETBSD_CORE_PROCINFO 1 #define NETBSD_ELFCORE_PROCINFO_VERSION 1 struct netbsd_elfcore_procinfo { /* Version 1 fields start here. */ uint32_t cpi_version; /* netbsd_elfcore_procinfo version */ uint32_t cpi_cpisize; /* sizeof(netbsd_elfcore_procinfo) */ 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];/* blocked signals */ uint32_t cpi_sigcatch[4];/* blocked 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 */ }; #if defined(ELFSIZE) && (ELFSIZE == 32) #define Elf_Ehdr Elf32_Ehdr #define Elf_Phdr Elf32_Phdr #define Elf_Shdr Elf32_Shdr #define Elf_Sym Elf32_Sym #define Elf_Rel Elf32_Rel #define Elf_Rela Elf32_Rela #define Elf_Dyn Elf32_Dyn #define Elf_Word Elf32_Word #define Elf_Sword Elf32_Sword #define Elf_Addr Elf32_Addr #define Elf_Off Elf32_Off #define Elf_Nhdr Elf32_Nhdr #define ELF_R_SYM ELF32_R_SYM #define ELF_R_TYPE ELF32_R_TYPE #define ELFCLASS ELFCLASS32 #define AuxInfo Aux32Info #elif defined(ELFSIZE) && (ELFSIZE == 64) #define Elf_Ehdr Elf64_Ehdr #define Elf_Phdr Elf64_Phdr #define Elf_Shdr Elf64_Shdr #define Elf_Sym Elf64_Sym #define Elf_Rel Elf64_Rel #define Elf_Rela Elf64_Rela #define Elf_Dyn Elf64_Dyn #define Elf_Word Elf64_Word #define Elf_Sword Elf64_Sword #define Elf_Addr Elf64_Addr #define Elf_Off Elf64_Off #define Elf_Nhdr Elf64_Nhdr #define ELF_R_SYM ELF64_R_SYM #define ELF_R_TYPE ELF64_R_TYPE #define ELFCLASS ELFCLASS64 #define AuxInfo Aux64Info #endif #define ELF32_ST_BIND(info) ELF_ST_BIND(info) #define ELF32_ST_TYPE(info) ELF_ST_TYPE(info) #define ELF32_ST_INFO(bind,type) ELF_ST_INFO(bind,type) #define ELF32_ST_VISIBILITY(other) ELF_ST_VISIBILITY(other) #define ELF64_ST_BIND(info) ELF_ST_BIND(info) #define ELF64_ST_TYPE(info) ELF_ST_TYPE(info) #define ELF64_ST_INFO(bind,type) ELF_ST_INFO(bind,type) #define ELF64_ST_VISIBILITY(other) ELF_ST_VISIBILITY(other) #ifdef _KERNEL #define ELF_AUX_ENTRIES 14 /* Max size of aux array passed to loader */ #define ELF32_NO_ADDR (~(Elf32_Addr)0) /* Indicates addr. not yet filled in */ #define ELF32_LINK_ADDR ((Elf32_Addr)-2) /* advises to use link address */ #define ELF64_NO_ADDR (~(Elf64_Addr)0) /* Indicates addr. not yet filled in */ #define ELF64_LINK_ADDR ((Elf64_Addr)-2) /* advises to use link address */ #if defined(ELFSIZE) && (ELFSIZE == 64) #define ELF_NO_ADDR ELF64_NO_ADDR #define ELF_LINK_ADDR ELF64_LINK_ADDR #elif defined(ELFSIZE) && (ELFSIZE == 32) #define ELF_NO_ADDR ELF32_NO_ADDR #define ELF_LINK_ADDR ELF32_LINK_ADDR #endif #ifndef ELF32_EHDR_FLAGS_OK #define ELF32_EHDR_FLAGS_OK(eh) 1 #endif #ifndef ELF64_EHDR_FLAGS_OK #define ELF64_EHDR_FLAGS_OK(eh) 1 #endif #if defined(ELFSIZE) && (ELFSIZE == 64) #define ELF_EHDR_FLAGS_OK(eh) ELF64_EHDR_FLAGS_OK(eh) #else #define ELF_EHDR_FLAGS_OK(eh) ELF32_EHDR_FLAGS_OK(eh) #endif #if defined(ELFSIZE) struct elf_args { Elf_Addr arg_entry; /* program entry point */ Elf_Addr arg_interp; /* Interpreter load address */ Elf_Addr arg_phaddr; /* program header address */ Elf_Addr arg_phentsize; /* Size of program header */ Elf_Addr arg_phnum; /* Number of program headers */ }; #endif /* * These constants are used for Elf32_Verdef struct's version number. */ #define VER_DEF_NONE 0 #define VER_DEF_CURRENT 1 /* * These constants are used for Elf32_Verdef struct's vd_flags. */ #define VER_FLG_BASE 0x1 #define VER_FLG_WEAK 0x2 /* * These are used in an Elf32_Versym field. */ #define VER_NDX_LOCAL 0 #define VER_NDX_GLOBAL 1 /* * These constants are used for Elf32_Verneed struct's version number. */ #define VER_NEED_NONE 0 #define VER_NEED_CURRENT 1 /* * GNU Extension hidding symb */ #define VERSYM_HIDDEN 0x8000 #define VERSYM_VERSION 0x7fff #define ELF_VER_CHR '@' /* * These are current size independent. */ typedef struct { Elf32_Half vd_version; /* version number of structure */ Elf32_Half vd_flags; /* flags (VER_FLG_*) */ Elf32_Half vd_ndx; /* version index */ Elf32_Half vd_cnt; /* number of verdaux entries */ Elf32_Word vd_hash; /* hash of name */ Elf32_Word vd_aux; /* offset to verdaux entries */ Elf32_Word vd_next; /* offset to next verdef */ } Elf32_Verdef; typedef struct { Elf32_Word vda_name; /* string table offset of name */ Elf32_Word vda_next; /* offset to verdaux */ } Elf32_Verdaux; typedef struct { Elf32_Half vn_version; /* version number of structure */ Elf32_Half vn_cnt; /* number of vernaux entries */ Elf32_Word vn_file; /* string table offset of library name*/ Elf32_Word vn_aux; /* offset to vernaux entries */ Elf32_Word vn_next; /* offset to next verneed */ } Elf32_Verneed; typedef struct { Elf32_Word vna_hash; /* Hash of dependency name */ Elf32_Half vna_flags; /* flags (VER_FLG_*) */ Elf32_Half vna_other; /* unused */ Elf32_Word vna_name; /* string table offset to version name*/ Elf32_Word vna_next; /* offset to next vernaux */ } Elf32_Vernaux; typedef struct { Elf32_Half vs_vers; } Elf32_Versym; #ifndef _LKM #include "opt_execfmt.h" #endif #ifdef EXEC_ELF32 int exec_elf32_makecmds(struct lwp *, struct exec_package *); int elf32_copyargs(struct lwp *, struct exec_package *, struct ps_strings *, char **, void *); int coredump_elf32(struct lwp *, void *); int coredump_writenote_elf32(struct proc *, void *, Elf32_Nhdr *, const char *, void *); int elf32_check_header(Elf32_Ehdr *, int); #endif #ifdef EXEC_ELF64 int exec_elf64_makecmds(struct lwp *, struct exec_package *); int elf64_copyargs(struct lwp *, struct exec_package *, struct ps_strings *, char **, void *); int coredump_elf64(struct lwp *, void *); int coredump_writenote_elf64(struct proc *, void *, Elf64_Nhdr *, const char *, void *); int elf64_check_header(Elf64_Ehdr *, int); #endif #endif /* _KERNEL */ #endif /* !_SYS_EXEC_ELF_H_ */