201 lines
7.2 KiB
C
201 lines
7.2 KiB
C
/*
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* Copyright (c) 2000, 2001, 2002, 2003, 2004, 2005, 2008, 2009
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* The President and Fellows of Harvard College.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE UNIVERSITY AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE UNIVERSITY OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef _ELF_H_
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#define _ELF_H_
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/*
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* Simplified ELF definitions for OS/161 and System/161.
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*
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* Restrictions:
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* 32-bit only
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* No support for .o files or linker structures
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* Does not define all the random symbols a standard elf header would.
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*/
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/* Get MD bits */
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#include <machine/elf.h>
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/*
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* ELF file header. This appears at the very beginning of an ELF file.
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*/
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#define ELF_NIDENT 16
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typedef struct {
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unsigned char e_ident[ELF_NIDENT]; /* magic number et al. */
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uint16_t e_type; /* type of file this is */
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uint16_t e_machine; /* processor type file is for */
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uint32_t e_version; /* ELF version */
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uint32_t e_entry; /* address of program entry point */
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uint32_t e_phoff; /* location in file of phdrs */
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uint32_t e_shoff; /* ignore */
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uint32_t e_flags; /* ignore */
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uint16_t e_ehsize; /* actual size of file header */
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uint16_t e_phentsize; /* actual size of phdr */
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uint16_t e_phnum; /* number of phdrs */
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uint16_t e_shentsize; /* ignore */
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uint16_t e_shnum; /* ignore */
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uint16_t e_shstrndx; /* ignore */
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} Elf32_Ehdr;
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/* Offsets for the 1-byte fields within e_ident[] */
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#define EI_MAG0 0 /* '\177' */
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#define EI_MAG1 1 /* 'E' */
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#define EI_MAG2 2 /* 'L' */
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#define EI_MAG3 3 /* 'F' */
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#define EI_CLASS 4 /* File class - always ELFCLASS32 */
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#define EI_DATA 5 /* Data encoding - ELFDATA2LSB or ELFDATA2MSB*/
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#define EI_VERSION 6 /* ELF version - EV_CURRENT*/
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#define EI_OSABI 7 /* OS/syscall ABI identification */
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#define EI_ABIVERSION 8 /* syscall ABI version */
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#define EI_PAD 9 /* Start of padding bytes up to EI_NIDENT*/
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/* Values for these fields */
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/* For e_ident[EI_MAG0..3] */
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#define ELFMAG0 0x7f
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#define ELFMAG1 'E'
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#define ELFMAG2 'L'
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#define ELFMAG3 'F'
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/* For e_ident[EI_CLASS] */
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#define ELFCLASSNONE 0 /* Invalid class */
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#define ELFCLASS32 1 /* 32-bit objects */
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#define ELFCLASS64 2 /* 64-bit objects */
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/* e_ident[EI_DATA] */
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#define ELFDATANONE 0 /* Invalid data encoding */
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#define ELFDATA2LSB 1 /* 2's complement values, LSB first */
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#define ELFDATA2MSB 2 /* 2's complement values, MSB first */
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/* e_ident[EI_VERSION] */
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#define EV_NONE 0 /* Invalid version */
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#define EV_CURRENT 1 /* Current version */
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/* e_ident[EI_OSABI] */
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#define ELFOSABI_SYSV 0 /* UNIX System V ABI */
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#define ELFOSABI_HPUX 1 /* HP-UX operating system */
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#define ELFOSABI_STANDALONE 255 /* Standalone (embedded) application */
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/*
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* Values for e_type
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*/
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#define ET_NONE 0 /* No file type */
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#define ET_REL 1 /* Relocatable file */
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#define ET_EXEC 2 /* Executable file */
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#define ET_DYN 3 /* Shared object file */
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#define ET_CORE 4 /* Core file */
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#define ET_NUM 5
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/*
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* Values for e_machine
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*/
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#define EM_NONE 0 /* No machine */
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#define EM_M32 1 /* AT&T WE 32100 */
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#define EM_SPARC 2 /* SPARC */
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#define EM_386 3 /* Intel 80386 */
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#define EM_68K 4 /* Motorola 68000 */
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#define EM_88K 5 /* Motorola 88000 */
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#define EM_486 6 /* Intel 80486 */
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#define EM_860 7 /* Intel 80860 */
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#define EM_MIPS 8 /* MIPS I Architecture */
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#define EM_S370 9 /* Amdahl UTS on System/370 */
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#define EM_MIPS_RS3_LE 10 /* MIPS RS3000 Little-endian */
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#define EM_RS6000 11 /* IBM RS/6000 XXX reserved */
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#define EM_PARISC 15 /* Hewlett-Packard PA-RISC */
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#define EM_NCUBE 16 /* NCube XXX reserved */
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#define EM_VPP500 17 /* Fujitsu VPP500 */
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#define EM_SPARC32PLUS 18 /* Enhanced instruction set SPARC */
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#define EM_960 19 /* Intel 80960 */
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#define EM_PPC 20 /* PowerPC */
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#define EM_V800 36 /* NEC V800 */
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#define EM_FR20 37 /* Fujitsu FR20 */
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#define EM_RH32 38 /* TRW RH-32 */
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#define EM_RCE 39 /* Motorola RCE */
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#define EM_ARM 40 /* Advanced RISC Machines ARM */
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#define EM_ALPHA 41 /* DIGITAL Alpha */
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#define EM_SH 42 /* Hitachi Super-H */
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#define EM_SPARCV9 43 /* SPARC Version 9 */
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#define EM_TRICORE 44 /* Siemens Tricore */
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#define EM_ARC 45 /* Argonaut RISC Core */
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#define EM_H8_300 46 /* Hitachi H8/300 */
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#define EM_H8_300H 47 /* Hitachi H8/300H */
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#define EM_H8S 48 /* Hitachi H8S */
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#define EM_H8_500 49 /* Hitachi H8/500 */
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#define EM_IA_64 50 /* Intel Merced Processor */
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#define EM_MIPS_X 51 /* Stanford MIPS-X */
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#define EM_COLDFIRE 52 /* Motorola Coldfire */
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#define EM_68HC12 53 /* Motorola MC68HC12 */
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#define EM_VAX 75 /* DIGITAL VAX */
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#define EM_ALPHA_EXP 36902 /* used by NetBSD/alpha; obsolete */
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#define EM_NUM 36903
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/*
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* "Program Header" - runtime segment header.
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* There are Ehdr.e_phnum of these located at one position within the file.
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*
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* Note: if p_memsz > p_filesz, the leftover space should be zero-filled.
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*/
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typedef struct {
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uint32_t p_type; /* Type of segment */
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uint32_t p_offset; /* Location of data within file */
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uint32_t p_vaddr; /* Virtual address */
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uint32_t p_paddr; /* Ignore */
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uint32_t p_filesz; /* Size of data within file */
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uint32_t p_memsz; /* Size of data to be loaded into memory*/
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uint32_t p_flags; /* Flags */
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uint32_t p_align; /* Required alignment - can ignore */
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} Elf32_Phdr;
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/* values for p_type */
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#define PT_NULL 0 /* Program header table entry unused */
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#define PT_LOAD 1 /* Loadable program segment */
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#define PT_DYNAMIC 2 /* Dynamic linking information */
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#define PT_INTERP 3 /* Program interpreter */
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#define PT_NOTE 4 /* Auxiliary information */
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#define PT_SHLIB 5 /* Reserved, unspecified semantics */
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#define PT_PHDR 6 /* Entry for header table itself */
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#define PT_NUM 7
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#define PT_MIPS_REGINFO 0x70000000
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/* values for p_flags */
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#define PF_R 0x4 /* Segment is readable */
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#define PF_W 0x2 /* Segment is writable */
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#define PF_X 0x1 /* Segment is executable */
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typedef Elf32_Ehdr Elf_Ehdr;
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typedef Elf32_Phdr Elf_Phdr;
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#endif /* _ELF_H_ */
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