mirror of
https://github.com/fail0verflow/switch-coreboot.git
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2393fcedfa
understood. This file has been tested and works with FILO 0.5. Signed-off-by: Ronald G. Minnich <rminnich@gmail.com> Acked-by: Ronald G. Minnich <rminnich@gmail.com> Acked-by: Stefan Reinauer <stepan@coresystems.de> git-svn-id: svn://coreboot.org/repository/LinuxBIOSv3@123 f3766cd6-281f-0410-b1cd-43a5c92072e9
425 lines
14 KiB
C
425 lines
14 KiB
C
/* This file defines standard ELF types, structures, and macros.
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Copyright (C) 1995-2003, 2004, 2005 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA.
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*
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* This file includes modifications made in 2001 by Eric Biederman for LinuxBIOS
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*/
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#ifndef _ELF_H
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#define _ELF_H 1
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#include <stddef.h>
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#include <arch/elf.h>
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#include <stdint.h>
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__BEGIN_DECLS
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/* Standard ELF types. */
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/* Type for a 16-bit quantity. */
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typedef uint16_t Elf32_Half;
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typedef uint16_t Elf64_Half;
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/* Types for signed and unsigned 32-bit quantities. */
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typedef uint32_t Elf32_Word;
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typedef int32_t Elf32_Sword;
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typedef uint32_t Elf64_Word;
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typedef int32_t Elf64_Sword;
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/* Types for signed and unsigned 64-bit quantities. */
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typedef uint64_t Elf32_Xword;
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typedef int64_t Elf32_Sxword;
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typedef uint64_t Elf64_Xword;
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typedef int64_t Elf64_Sxword;
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/* Type of addresses. */
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typedef uint32_t Elf32_Addr;
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typedef uint64_t Elf64_Addr;
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/* Type of file offsets. */
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typedef uint32_t Elf32_Off;
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typedef uint64_t Elf64_Off;
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/* Type for section indices, which are 16-bit quantities. */
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typedef uint16_t Elf32_Section;
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typedef uint16_t Elf64_Section;
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/* Type of symbol indices. */
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typedef uint32_t Elf32_Symndx;
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typedef uint64_t Elf64_Symndx;
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/* The ELF file header. This appears at the start of every ELF file. */
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#define EI_NIDENT (16)
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typedef struct
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{
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unsigned char e_ident[EI_NIDENT]; /* Magic number and other info */
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Elf32_Half e_type; /* Object file type */
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Elf32_Half e_machine; /* Architecture */
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Elf32_Word e_version; /* Object file version */
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Elf32_Addr e_entry; /* Entry point virtual address */
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Elf32_Off e_phoff; /* Program header table file offset */
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Elf32_Off e_shoff; /* Section header table file offset */
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Elf32_Word e_flags; /* Processor-specific flags */
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Elf32_Half e_ehsize; /* ELF header size in bytes */
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Elf32_Half e_phentsize; /* Program header table entry size */
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Elf32_Half e_phnum; /* Program header table entry count */
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Elf32_Half e_shentsize; /* Section header table entry size */
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Elf32_Half e_shnum; /* Section header table entry count */
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Elf32_Half e_shstrndx; /* Section header string table index */
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} Elf32_Ehdr;
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typedef struct
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{
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unsigned char e_ident[EI_NIDENT]; /* Magic number and other info */
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Elf64_Half e_type; /* Object file type */
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Elf64_Half e_machine; /* Architecture */
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Elf64_Word e_version; /* Object file version */
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Elf64_Addr e_entry; /* Entry point virtual address */
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Elf64_Off e_phoff; /* Program header table file offset */
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Elf64_Off e_shoff; /* Section header table file offset */
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Elf64_Word e_flags; /* Processor-specific flags */
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Elf64_Half e_ehsize; /* ELF header size in bytes */
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Elf64_Half e_phentsize; /* Program header table entry size */
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Elf64_Half e_phnum; /* Program header table entry count */
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Elf64_Half e_shentsize; /* Section header table entry size */
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Elf64_Half e_shnum; /* Section header table entry count */
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Elf64_Half e_shstrndx; /* Section header string table index */
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} Elf64_Ehdr;
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/* Fields in the e_ident array. The EI_* macros are indices into the
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array. The macros under each EI_* macro are the values the byte
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may have. */
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#define EI_MAG0 0 /* File identification byte 0 index */
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#define ELFMAG0 0x7f /* Magic number byte 0 */
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#define EI_MAG1 1 /* File identification byte 1 index */
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#define ELFMAG1 'E' /* Magic number byte 1 */
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#define EI_MAG2 2 /* File identification byte 2 index */
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#define ELFMAG2 'L' /* Magic number byte 2 */
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#define EI_MAG3 3 /* File identification byte 3 index */
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#define ELFMAG3 'F' /* Magic number byte 3 */
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/* Conglomeration of the identification bytes, for easy testing as a word. */
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#define ELFMAG "\177ELF"
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#define SELFMAG 4
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#define EI_CLASS 4 /* File class byte index */
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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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#define ELFCLASSNUM 3
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#define EI_DATA 5 /* Data encoding byte index */
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#define ELFDATANONE 0 /* Invalid data encoding */
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#define ELFDATA2LSB 1 /* 2's complement, little endian */
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#define ELFDATA2MSB 2 /* 2's complement, big endian */
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#define ELFDATANUM 3
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#define EI_VERSION 6 /* File version byte index */
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/* Value must be EV_CURRENT */
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#define EI_OSABI 7 /* OS ABI identification */
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#define ELFOSABI_SYSV 0 /* UNIX System V ABI */
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#define ELFOSABI_HPUX 1 /* HP-UX */
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#define ELFOSABI_ARM 97 /* ARM */
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#define ELFOSABI_STANDALONE 255 /* Standalone (embedded) application */
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#define EI_ABIVERSION 8 /* ABI version */
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#define EI_PAD 9 /* Byte index of padding bytes */
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/* Legal values for e_type (object file type). */
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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 /* Number of defined types */
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#define ET_LOPROC 0xff00 /* Processor-specific */
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#define ET_HIPROC 0xffff /* Processor-specific */
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/* Legal values for e_machine (architecture). */
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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 /* SUN SPARC */
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#define EM_386 3 /* Intel 80386 */
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#define EM_68K 4 /* Motorola m68k family */
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#define EM_88K 5 /* Motorola m88k family */
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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 R3000 big-endian */
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#define EM_S370 9 /* Amdahl */
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#define EM_MIPS_RS4_BE 10 /* MIPS R4000 big-endian */
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#define EM_RS6000 11 /* RS6000 */
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#define EM_PARISC 15 /* HPPA */
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#define EM_nCUBE 16 /* nCUBE */
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#define EM_VPP500 17 /* Fujitsu VPP500 */
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#define EM_SPARC32PLUS 18 /* Sun's "v8plus" */
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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 series */
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#define EM_FR20 37 /* Fujitsu FR20 */
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#define EM_RH32 38 /* TRW RH32 */
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#define EM_MMA 39 /* Fujitsu MMA */
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#define EM_ARM 40 /* ARM */
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#define EM_FAKE_ALPHA 41 /* Digital Alpha */
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#define EM_SH 42 /* Hitachi SH */
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#define EM_SPARCV9 43 /* SPARC v9 64-bit */
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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 */
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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 M68HC12 */
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#define EM_NUM 54
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/* If it is necessary to assign new unofficial EM_* values, please
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pick large random numbers (0x8523, 0xa7f2, etc.) to minimize the
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chances of collision with official or non-GNU unofficial values. */
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#define EM_ALPHA 0x9026
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/* Legal values for e_version (version). */
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#define EV_NONE 0 /* Invalid ELF version */
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#define EV_CURRENT 1 /* Current version */
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#define EV_NUM 2
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/* Program segment header. */
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typedef struct
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{
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Elf32_Word p_type; /* Segment type */
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Elf32_Off p_offset; /* Segment file offset */
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Elf32_Addr p_vaddr; /* Segment virtual address */
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Elf32_Addr p_paddr; /* Segment physical address */
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Elf32_Word p_filesz; /* Segment size in file */
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Elf32_Word p_memsz; /* Segment size in memory */
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Elf32_Word p_flags; /* Segment flags */
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Elf32_Word p_align; /* Segment alignment */
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} Elf32_Phdr;
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typedef struct
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{
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Elf64_Word p_type; /* Segment type */
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Elf64_Word p_flags; /* Segment flags */
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Elf64_Off p_offset; /* Segment file offset */
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Elf64_Addr p_vaddr; /* Segment virtual address */
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Elf64_Addr p_paddr; /* Segment physical address */
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Elf64_Xword p_filesz; /* Segment size in file */
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Elf64_Xword p_memsz; /* Segment size in memory */
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Elf64_Xword p_align; /* Segment alignment */
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} Elf64_Phdr;
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/* Legal values for p_type (segment 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 */
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#define PT_PHDR 6 /* Entry for header table itself */
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#define PT_NUM 7 /* Number of defined types. */
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#define PT_LOOS 0x60000000 /* Start of OS-specific */
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#define PT_HIOS 0x6fffffff /* End of OS-specific */
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#define PT_LOPROC 0x70000000 /* Start of processor-specific */
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#define PT_HIPROC 0x7fffffff /* End of processor-specific */
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/* Legal values for p_flags (segment flags). */
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#define PF_X (1 << 0) /* Segment is executable */
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#define PF_W (1 << 1) /* Segment is writable */
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#define PF_R (1 << 2) /* Segment is readable */
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#define PF_MASKPROC 0xf0000000 /* Processor-specific */
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/* Note section contents. Each entry in the note section begins with
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a header of a fixed form. */
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typedef struct
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{
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Elf32_Word n_namesz; /* Length of the note's name. */
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Elf32_Word n_descsz; /* Length of the note's descriptor. */
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Elf32_Word n_type; /* Type of the note. */
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} Elf32_Nhdr;
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typedef struct
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{
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Elf64_Word n_namesz; /* Length of the note's name. */
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Elf64_Word n_descsz; /* Length of the note's descriptor. */
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Elf64_Word n_type; /* Type of the note. */
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} Elf64_Nhdr;
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/* Known names of notes. */
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/* Solaris entries in the note section have this name. */
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#define ELF_NOTE_SOLARIS "SUNW Solaris"
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/* Note entries for GNU systems have this name. */
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#define ELF_NOTE_GNU "GNU"
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/* Defined types of notes for Solaris. */
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/* Value of descriptor (one word) is desired pagesize for the binary. */
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#define ELF_NOTE_PAGESIZE_HINT 1
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/* Defined note types for GNU systems. */
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/* ABI information. The descriptor consists of words:
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word 0: OS descriptor
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word 1: major version of the ABI
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word 2: minor version of the ABI
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word 3: subminor version of the ABI
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*/
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#define ELF_NOTE_ABI 1
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/* Known OSes. These value can appear in word 0 of an ELF_NOTE_ABI
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note section entry. */
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#define ELF_NOTE_OS_LINUX 0
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#define ELF_NOTE_OS_GNU 1
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#define ELF_NOTE_OS_SOLARIS2 2
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/* Motorola 68k specific definitions. */
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/* Intel 80386 specific definitions. */
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/* SUN SPARC specific definitions. */
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/* Values for Elf64_Ehdr.e_flags. */
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#define EF_SPARCV9_MM 3
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#define EF_SPARCV9_TSO 0
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#define EF_SPARCV9_PSO 1
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#define EF_SPARCV9_RMO 2
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#define EF_SPARC_EXT_MASK 0xFFFF00
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#define EF_SPARC_SUN_US1 0x000200
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#define EF_SPARC_HAL_R1 0x000400
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/* MIPS R3000 specific definitions. */
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/* Legal values for e_flags field of Elf32_Ehdr. */
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#define EF_MIPS_NOREORDER 1 /* A .noreorder directive was used */
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#define EF_MIPS_PIC 2 /* Contains PIC code */
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#define EF_MIPS_CPIC 4 /* Uses PIC calling sequence */
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#define EF_MIPS_XGOT 8
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#define EF_MIPS_64BIT_WHIRL 16
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#define EF_MIPS_ABI2 32
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#define EF_MIPS_ABI_ON32 64
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#define EF_MIPS_ARCH 0xf0000000 /* MIPS architecture level */
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/* Legal values for MIPS architecture level. */
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#define EF_MIPS_ARCH_1 0x00000000 /* -mips1 code. */
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#define EF_MIPS_ARCH_2 0x10000000 /* -mips2 code. */
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#define EF_MIPS_ARCH_3 0x20000000 /* -mips3 code. */
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#define EF_MIPS_ARCH_4 0x30000000 /* -mips4 code. */
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#define EF_MIPS_ARCH_5 0x40000000 /* -mips5 code. */
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/* Legal values for p_type field of Elf32_Phdr. */
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#define PT_MIPS_REGINFO 0x70000000 /* Register usage information */
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#define PT_MIPS_RTPROC 0x70000001 /* Runtime procedure table. */
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#define PT_MIPS_OPTIONS 0x70000002
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/* Special program header types. */
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#define PF_MIPS_LOCAL 0x10000000
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/* HPPA specific definitions. */
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/* Legal values for e_flags field of Elf32_Ehdr. */
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#define EF_PARISC_TRAPNL 1 /* Trap nil pointer dereference. */
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#define EF_PARISC_EXT 2 /* Program uses arch. extensions. */
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#define EF_PARISC_ARCH 0xffff0000 /* Architecture version. */
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/* Defined values are:
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0x020b PA-RISC 1.0 big-endian
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0x0210 PA-RISC 1.1 big-endian
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0x028b PA-RISC 1.0 little-endian
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0x0290 PA-RISC 1.1 little-endian
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*/
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/* Alpha specific definitions. */
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/* Legal values for e_flags field of Elf64_Ehdr. */
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#define EF_ALPHA_32BIT 1 /* All addresses must be < 2GB. */
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#define EF_ALPHA_CANRELAX 2 /* Relocations for relaxing exist. */
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/* PowerPC specific declarations */
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/* ARM specific declarations */
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/* Processor specific flags for the ELF header e_flags field. */
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#define EF_ARM_RELEXEC 0x01
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#define EF_ARM_HASENTRY 0x02
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#define EF_ARM_INTERWORK 0x04
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#define EF_ARM_APCS_26 0x08
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#define EF_ARM_APCS_FLOAT 0x10
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#define EF_ARM_PIC 0x20
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#define EF_ALIGN8 0x40 /* 8-bit structure alignment is in use */
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#define EF_NEW_ABI 0x80
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#define EF_OLD_ABI 0x100
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/* ARM-specific program header flags */
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#define PF_ARM_SB 0x10000000 /* Segment contains the location
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addressed by the static base */
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#if ELF_CLASS == ELFCLASS32
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typedef Elf32_Ehdr Elf_ehdr;
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typedef Elf32_Phdr Elf_phdr;
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#endif
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#if ELF_CLASS == ELFCLASS64
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typedef Elf64_Ehdr Elf_ehdr;
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typedef Elf64_Phdr Elf_phdr;
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#endif
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extern int elf_check_arch(Elf_ehdr *ehdr);
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extern void jmp_to_elf_entry(void *entry);
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struct lb_memory;
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extern int elfboot(struct lb_memory *mem);
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#define FIRMWARE_TYPE "LinuxBIOS"
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#define BOOTLOADER "elfboot"
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#define BOOTLOADER_VERSION "1.3"
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#endif /* elf.h */
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