NetBSD-5.0.2/sys/sys/exec_elf.h
/* $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 <sys/types.h>
#else
#include <inttypes.h>
#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 <nbinclude/machine/elf_machdep.h>
#else
#include <machine/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
/* 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 <phnum>(16),<chk-type>(16),<chk-value>. */
#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_ */