mirror of
https://github.com/fail0verflow/switch-coreboot.git
synced 2025-05-04 01:39:18 -04:00
9fed5d8f66
directories in include, since having all those directories has obscured understanding. Add elfboot.c to lib. Same argument, it is not in boot, it is in lib, since fewer directories is better. 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@89 f3766cd6-281f-0410-b1cd-43a5c92072e9
401 lines
13 KiB
C
401 lines
13 KiB
C
#ifndef ELF_H
|
|
#define ELF_H
|
|
|
|
/* Standard ELF types. */
|
|
|
|
#include <stdint.h>
|
|
#include <stddef.h>
|
|
#include <arch/boot/boot.h>
|
|
|
|
/* Type for a 16-bit quantity. */
|
|
typedef uint16_t Elf32_Half;
|
|
typedef uint16_t Elf64_Half;
|
|
|
|
/* Types for signed and unsigned 32-bit quantities. */
|
|
typedef uint32_t Elf32_Word;
|
|
typedef int32_t Elf32_Sword;
|
|
typedef uint32_t Elf64_Word;
|
|
typedef int32_t Elf64_Sword;
|
|
|
|
/* Types for signed and unsigned 64-bit quantities. */
|
|
typedef uint64_t Elf32_Xword;
|
|
typedef int64_t Elf32_Sxword;
|
|
typedef uint64_t Elf64_Xword;
|
|
typedef int64_t Elf64_Sxword;
|
|
|
|
/* Type of addresses. */
|
|
typedef uint32_t Elf32_Addr;
|
|
typedef uint64_t Elf64_Addr;
|
|
|
|
/* Type of file offsets. */
|
|
typedef uint32_t Elf32_Off;
|
|
typedef uint64_t Elf64_Off;
|
|
|
|
/* Type for section indices, which are 16-bit quantities. */
|
|
typedef uint16_t Elf32_Section;
|
|
typedef uint16_t Elf64_Section;
|
|
|
|
/* Type of symbol indices. */
|
|
typedef uint32_t Elf32_Symndx;
|
|
typedef uint64_t Elf64_Symndx;
|
|
|
|
|
|
/* The ELF file header. This appears at the start of every ELF file. */
|
|
|
|
#define EI_NIDENT (16)
|
|
|
|
typedef struct
|
|
{
|
|
unsigned char e_ident[EI_NIDENT]; /* Magic number and other info */
|
|
Elf32_Half e_type; /* Object file type */
|
|
Elf32_Half e_machine; /* Architecture */
|
|
Elf32_Word e_version; /* Object file version */
|
|
Elf32_Addr e_entry; /* Entry point virtual address */
|
|
Elf32_Off e_phoff; /* Program header table file offset */
|
|
Elf32_Off e_shoff; /* Section header table file offset */
|
|
Elf32_Word e_flags; /* Processor-specific flags */
|
|
Elf32_Half e_ehsize; /* ELF header size in bytes */
|
|
Elf32_Half e_phentsize; /* Program header table entry size */
|
|
Elf32_Half e_phnum; /* Program header table entry count */
|
|
Elf32_Half e_shentsize; /* Section header table entry size */
|
|
Elf32_Half e_shnum; /* Section header table entry count */
|
|
Elf32_Half e_shstrndx; /* Section header string table index */
|
|
} Elf32_Ehdr;
|
|
|
|
typedef struct
|
|
{
|
|
unsigned char e_ident[EI_NIDENT]; /* Magic number and other info */
|
|
Elf64_Half e_type; /* Object file type */
|
|
Elf64_Half e_machine; /* Architecture */
|
|
Elf64_Word e_version; /* Object file version */
|
|
Elf64_Addr e_entry; /* Entry point virtual address */
|
|
Elf64_Off e_phoff; /* Program header table file offset */
|
|
Elf64_Off e_shoff; /* Section header table file offset */
|
|
Elf64_Word e_flags; /* Processor-specific flags */
|
|
Elf64_Half e_ehsize; /* ELF header size in bytes */
|
|
Elf64_Half e_phentsize; /* Program header table entry size */
|
|
Elf64_Half e_phnum; /* Program header table entry count */
|
|
Elf64_Half e_shentsize; /* Section header table entry size */
|
|
Elf64_Half e_shnum; /* Section header table entry count */
|
|
Elf64_Half e_shstrndx; /* Section header string table index */
|
|
} Elf64_Ehdr;
|
|
|
|
/* Fields in the e_ident array. The EI_* macros are indices into the
|
|
array. The macros under each EI_* macro are the values the byte
|
|
may have. */
|
|
|
|
#define EI_MAG0 0 /* File identification byte 0 index */
|
|
#define ELFMAG0 0x7f /* Magic number byte 0 */
|
|
|
|
#define EI_MAG1 1 /* File identification byte 1 index */
|
|
#define ELFMAG1 'E' /* Magic number byte 1 */
|
|
|
|
#define EI_MAG2 2 /* File identification byte 2 index */
|
|
#define ELFMAG2 'L' /* Magic number byte 2 */
|
|
|
|
#define EI_MAG3 3 /* File identification byte 3 index */
|
|
#define ELFMAG3 'F' /* Magic number byte 3 */
|
|
|
|
/* Conglomeration of the identification bytes, for easy testing as a word. */
|
|
#define ELFMAG "\177ELF"
|
|
#define SELFMAG 4
|
|
|
|
#define EI_CLASS 4 /* File class byte index */
|
|
#define ELFCLASSNONE 0 /* Invalid class */
|
|
#define ELFCLASS32 1 /* 32-bit objects */
|
|
#define ELFCLASS64 2 /* 64-bit objects */
|
|
#define ELFCLASSNUM 3
|
|
|
|
#define EI_DATA 5 /* Data encoding byte index */
|
|
#define ELFDATANONE 0 /* Invalid data encoding */
|
|
#define ELFDATA2LSB 1 /* 2's complement, little endian */
|
|
#define ELFDATA2MSB 2 /* 2's complement, big endian */
|
|
#define ELFDATANUM 3
|
|
|
|
#define EI_VERSION 6 /* File version byte index */
|
|
/* Value must be EV_CURRENT */
|
|
|
|
#define EI_OSABI 7 /* OS ABI identification */
|
|
#define ELFOSABI_SYSV 0 /* UNIX System V ABI */
|
|
#define ELFOSABI_HPUX 1 /* HP-UX */
|
|
#define ELFOSABI_ARM 97 /* ARM */
|
|
#define ELFOSABI_STANDALONE 255 /* Standalone (embedded) application */
|
|
|
|
#define EI_ABIVERSION 8 /* ABI version */
|
|
|
|
#define EI_PAD 9 /* Byte index of padding bytes */
|
|
|
|
/* Legal values for e_type (object file 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 /* Number of defined types */
|
|
#define ET_LOPROC 0xff00 /* Processor-specific */
|
|
#define ET_HIPROC 0xffff /* Processor-specific */
|
|
|
|
/* Legal values for e_machine (architecture). */
|
|
|
|
#define EM_NONE 0 /* No machine */
|
|
#define EM_M32 1 /* AT&T WE 32100 */
|
|
#define EM_SPARC 2 /* SUN SPARC */
|
|
#define EM_386 3 /* Intel 80386 */
|
|
#define EM_68K 4 /* Motorola m68k family */
|
|
#define EM_88K 5 /* Motorola m88k family */
|
|
#define EM_486 6 /* Intel 80486 */
|
|
#define EM_860 7 /* Intel 80860 */
|
|
#define EM_MIPS 8 /* MIPS R3000 big-endian */
|
|
#define EM_S370 9 /* Amdahl */
|
|
#define EM_MIPS_RS4_BE 10 /* MIPS R4000 big-endian */
|
|
#define EM_RS6000 11 /* RS6000 */
|
|
|
|
#define EM_PARISC 15 /* HPPA */
|
|
#define EM_nCUBE 16 /* nCUBE */
|
|
#define EM_VPP500 17 /* Fujitsu VPP500 */
|
|
#define EM_SPARC32PLUS 18 /* Sun's "v8plus" */
|
|
#define EM_960 19 /* Intel 80960 */
|
|
#define EM_PPC 20 /* PowerPC */
|
|
|
|
#define EM_V800 36 /* NEC V800 series */
|
|
#define EM_FR20 37 /* Fujitsu FR20 */
|
|
#define EM_RH32 38 /* TRW RH32 */
|
|
#define EM_MMA 39 /* Fujitsu MMA */
|
|
#define EM_ARM 40 /* ARM */
|
|
#define EM_FAKE_ALPHA 41 /* Digital Alpha */
|
|
#define EM_SH 42 /* Hitachi SH */
|
|
#define EM_SPARCV9 43 /* SPARC v9 64-bit */
|
|
#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 */
|
|
#define EM_MIPS_X 51 /* Stanford MIPS-X */
|
|
#define EM_COLDFIRE 52 /* Motorola Coldfire */
|
|
#define EM_68HC12 53 /* Motorola M68HC12 */
|
|
#define EM_NUM 54
|
|
|
|
/* If it is necessary to assign new unofficial EM_* values, please
|
|
pick large random numbers (0x8523, 0xa7f2, etc.) to minimize the
|
|
chances of collision with official or non-GNU unofficial values. */
|
|
|
|
#define EM_ALPHA 0x9026
|
|
|
|
/* Legal values for e_version (version). */
|
|
|
|
#define EV_NONE 0 /* Invalid ELF version */
|
|
#define EV_CURRENT 1 /* Current version */
|
|
#define EV_NUM 2
|
|
|
|
|
|
/* Program segment header. */
|
|
|
|
typedef struct
|
|
{
|
|
Elf32_Word p_type; /* Segment type */
|
|
Elf32_Off p_offset; /* Segment file offset */
|
|
Elf32_Addr p_vaddr; /* Segment virtual address */
|
|
Elf32_Addr p_paddr; /* Segment physical address */
|
|
Elf32_Word p_filesz; /* Segment size in file */
|
|
Elf32_Word p_memsz; /* Segment size in memory */
|
|
Elf32_Word p_flags; /* Segment flags */
|
|
Elf32_Word p_align; /* Segment alignment */
|
|
} Elf32_Phdr;
|
|
|
|
typedef struct
|
|
{
|
|
Elf64_Word p_type; /* Segment type */
|
|
Elf64_Word p_flags; /* Segment flags */
|
|
Elf64_Off p_offset; /* Segment file offset */
|
|
Elf64_Addr p_vaddr; /* Segment virtual address */
|
|
Elf64_Addr p_paddr; /* Segment physical address */
|
|
Elf64_Xword p_filesz; /* Segment size in file */
|
|
Elf64_Xword p_memsz; /* Segment size in memory */
|
|
Elf64_Xword p_align; /* Segment alignment */
|
|
} Elf64_Phdr;
|
|
|
|
/* Legal values for p_type (segment 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 */
|
|
#define PT_PHDR 6 /* Entry for header table itself */
|
|
#define PT_NUM 7 /* Number of defined types. */
|
|
#define PT_LOOS 0x60000000 /* Start of OS-specific */
|
|
#define PT_HIOS 0x6fffffff /* End of OS-specific */
|
|
#define PT_LOPROC 0x70000000 /* Start of processor-specific */
|
|
#define PT_HIPROC 0x7fffffff /* End of processor-specific */
|
|
|
|
/* Legal values for p_flags (segment flags). */
|
|
|
|
#define PF_X (1 << 0) /* Segment is executable */
|
|
#define PF_W (1 << 1) /* Segment is writable */
|
|
#define PF_R (1 << 2) /* Segment is readable */
|
|
#define PF_MASKPROC 0xf0000000 /* Processor-specific */
|
|
|
|
|
|
/* Note section contents. Each entry in the note section begins with
|
|
a header of a fixed form. */
|
|
|
|
typedef struct
|
|
{
|
|
Elf32_Word n_namesz; /* Length of the note's name. */
|
|
Elf32_Word n_descsz; /* Length of the note's descriptor. */
|
|
Elf32_Word n_type; /* Type of the note. */
|
|
} Elf32_Nhdr;
|
|
|
|
typedef struct
|
|
{
|
|
Elf64_Word n_namesz; /* Length of the note's name. */
|
|
Elf64_Word n_descsz; /* Length of the note's descriptor. */
|
|
Elf64_Word n_type; /* Type of the note. */
|
|
} Elf64_Nhdr;
|
|
|
|
/* Known names of notes. */
|
|
|
|
/* Solaris entries in the note section have this name. */
|
|
#define ELF_NOTE_SOLARIS "SUNW Solaris"
|
|
|
|
/* Note entries for GNU systems have this name. */
|
|
#define ELF_NOTE_GNU "GNU"
|
|
|
|
|
|
/* Defined types of notes for Solaris. */
|
|
|
|
/* Value of descriptor (one word) is desired pagesize for the binary. */
|
|
#define ELF_NOTE_PAGESIZE_HINT 1
|
|
|
|
|
|
/* Defined note types for GNU systems. */
|
|
|
|
/* ABI information. The descriptor consists of words:
|
|
word 0: OS descriptor
|
|
word 1: major version of the ABI
|
|
word 2: minor version of the ABI
|
|
word 3: subminor version of the ABI
|
|
*/
|
|
#define ELF_NOTE_ABI 1
|
|
|
|
/* Known OSes. These value can appear in word 0 of an ELF_NOTE_ABI
|
|
note section entry. */
|
|
#define ELF_NOTE_OS_LINUX 0
|
|
#define ELF_NOTE_OS_GNU 1
|
|
#define ELF_NOTE_OS_SOLARIS2 2
|
|
|
|
|
|
/* Motorola 68k specific definitions. */
|
|
|
|
/* Intel 80386 specific definitions. */
|
|
|
|
/* SUN SPARC specific definitions. */
|
|
|
|
/* Values for Elf64_Ehdr.e_flags. */
|
|
|
|
#define EF_SPARCV9_MM 3
|
|
#define EF_SPARCV9_TSO 0
|
|
#define EF_SPARCV9_PSO 1
|
|
#define EF_SPARCV9_RMO 2
|
|
#define EF_SPARC_EXT_MASK 0xFFFF00
|
|
#define EF_SPARC_SUN_US1 0x000200
|
|
#define EF_SPARC_HAL_R1 0x000400
|
|
|
|
/* MIPS R3000 specific definitions. */
|
|
|
|
/* Legal values for e_flags field of Elf32_Ehdr. */
|
|
|
|
#define EF_MIPS_NOREORDER 1 /* A .noreorder directive was used */
|
|
#define EF_MIPS_PIC 2 /* Contains PIC code */
|
|
#define EF_MIPS_CPIC 4 /* Uses PIC calling sequence */
|
|
#define EF_MIPS_XGOT 8
|
|
#define EF_MIPS_64BIT_WHIRL 16
|
|
#define EF_MIPS_ABI2 32
|
|
#define EF_MIPS_ABI_ON32 64
|
|
#define EF_MIPS_ARCH 0xf0000000 /* MIPS architecture level */
|
|
|
|
/* Legal values for MIPS architecture level. */
|
|
|
|
#define EF_MIPS_ARCH_1 0x00000000 /* -mips1 code. */
|
|
#define EF_MIPS_ARCH_2 0x10000000 /* -mips2 code. */
|
|
#define EF_MIPS_ARCH_3 0x20000000 /* -mips3 code. */
|
|
#define EF_MIPS_ARCH_4 0x30000000 /* -mips4 code. */
|
|
#define EF_MIPS_ARCH_5 0x40000000 /* -mips5 code. */
|
|
|
|
/* Legal values for p_type field of Elf32_Phdr. */
|
|
|
|
#define PT_MIPS_REGINFO 0x70000000 /* Register usage information */
|
|
#define PT_MIPS_RTPROC 0x70000001 /* Runtime procedure table. */
|
|
#define PT_MIPS_OPTIONS 0x70000002
|
|
|
|
/* Special program header types. */
|
|
|
|
#define PF_MIPS_LOCAL 0x10000000
|
|
|
|
|
|
/* HPPA specific definitions. */
|
|
|
|
/* Legal values for e_flags field of Elf32_Ehdr. */
|
|
|
|
#define EF_PARISC_TRAPNL 1 /* Trap nil pointer dereference. */
|
|
#define EF_PARISC_EXT 2 /* Program uses arch. extensions. */
|
|
#define EF_PARISC_ARCH 0xffff0000 /* Architecture version. */
|
|
/* Defined values are:
|
|
0x020b PA-RISC 1.0 big-endian
|
|
0x0210 PA-RISC 1.1 big-endian
|
|
0x028b PA-RISC 1.0 little-endian
|
|
0x0290 PA-RISC 1.1 little-endian
|
|
*/
|
|
|
|
|
|
/* Alpha specific definitions. */
|
|
|
|
/* Legal values for e_flags field of Elf64_Ehdr. */
|
|
|
|
#define EF_ALPHA_32BIT 1 /* All addresses must be < 2GB. */
|
|
#define EF_ALPHA_CANRELAX 2 /* Relocations for relaxing exist. */
|
|
|
|
|
|
/* PowerPC specific declarations */
|
|
|
|
/* ARM specific declarations */
|
|
|
|
/* Processor specific flags for the ELF header e_flags field. */
|
|
#define EF_ARM_RELEXEC 0x01
|
|
#define EF_ARM_HASENTRY 0x02
|
|
#define EF_ARM_INTERWORK 0x04
|
|
#define EF_ARM_APCS_26 0x08
|
|
#define EF_ARM_APCS_FLOAT 0x10
|
|
#define EF_ARM_PIC 0x20
|
|
#define EF_ALIGN8 0x40 /* 8-bit structure alignment is in use */
|
|
#define EF_NEW_ABI 0x80
|
|
#define EF_OLD_ABI 0x100
|
|
|
|
/* ARM-specific program header flags */
|
|
#define PF_ARM_SB 0x10000000 /* Segment contains the location
|
|
addressed by the static base */
|
|
|
|
#if ELF_CLASS == ELFCLASS32
|
|
typedef Elf32_Ehdr Elf_ehdr;
|
|
typedef Elf32_Phdr Elf_phdr;
|
|
#endif
|
|
|
|
#if ELF_CLASS == ELFCLASS64
|
|
typedef Elf64_Ehdr Elf_ehdr;
|
|
typedef Elf64_Phdr Elf_phdr;
|
|
#endif
|
|
|
|
extern int elf_check_arch(Elf_ehdr *ehdr);
|
|
extern void jmp_to_elf_entry(void *entry, unsigned long buffer);
|
|
struct lb_memory;
|
|
extern int elfboot(struct lb_memory *mem);
|
|
|
|
#define FIRMWARE_TYPE "LinuxBIOS"
|
|
#define BOOTLOADER "elfboot"
|
|
#define BOOTLOADER_VERSION "1.3"
|
|
|
|
#endif /* elf.h */
|