Logo Search packages:      
Sourcecode: linux version File versions  Download package

elf.h

#ifndef _PPC_BOOT_ELF_H_
#define _PPC_BOOT_ELF_H_

/* 32-bit ELF base types. */
typedef unsigned int Elf32_Addr;
typedef unsigned short Elf32_Half;
typedef unsigned int Elf32_Off;
typedef signed int Elf32_Sword;
typedef unsigned int Elf32_Word;

/* 64-bit ELF base types. */
typedef unsigned long long Elf64_Addr;
typedef unsigned short Elf64_Half;
typedef signed short Elf64_SHalf;
typedef unsigned long long Elf64_Off;
typedef signed int Elf64_Sword;
typedef unsigned int Elf64_Word;
typedef unsigned long long Elf64_Xword;
typedef signed long long Elf64_Sxword;

/* These constants are for the segment types stored in the image headers */
#define PT_NULL    0
#define PT_LOAD    1
#define PT_DYNAMIC 2
#define PT_INTERP  3
#define PT_NOTE    4
#define PT_SHLIB   5
#define PT_PHDR    6
#define PT_TLS     7          /* Thread local storage segment */
#define PT_LOOS    0x60000000 /* OS-specific */
#define PT_HIOS    0x6fffffff /* OS-specific */
#define PT_LOPROC  0x70000000
#define PT_HIPROC  0x7fffffff
#define PT_GNU_EH_FRAME       0x6474e550

#define PT_GNU_STACK    (PT_LOOS + 0x474e551)

/* These constants define the different elf file types */
#define ET_NONE   0
#define ET_REL    1
#define ET_EXEC   2
#define ET_DYN    3
#define ET_CORE   4
#define ET_LOPROC 0xff00
#define ET_HIPROC 0xffff

/* These constants define the various ELF target machines */
#define EM_NONE  0
#define EM_PPC           20   /* PowerPC */
#define EM_PPC64       21     /* PowerPC64 */

#define EI_NIDENT 16

00054 typedef struct elf32_hdr {
      unsigned char e_ident[EI_NIDENT];
      Elf32_Half e_type;
      Elf32_Half e_machine;
      Elf32_Word e_version;
      Elf32_Addr e_entry;     /* Entry point */
      Elf32_Off e_phoff;
      Elf32_Off e_shoff;
      Elf32_Word e_flags;
      Elf32_Half e_ehsize;
      Elf32_Half e_phentsize;
      Elf32_Half e_phnum;
      Elf32_Half e_shentsize;
      Elf32_Half e_shnum;
      Elf32_Half e_shstrndx;
} Elf32_Ehdr;

00071 typedef struct elf64_hdr {
      unsigned char e_ident[16];    /* ELF "magic number" */
      Elf64_Half e_type;
      Elf64_Half e_machine;
      Elf64_Word e_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;
      Elf64_Half e_ehsize;
      Elf64_Half e_phentsize;
      Elf64_Half e_phnum;
      Elf64_Half e_shentsize;
      Elf64_Half e_shnum;
      Elf64_Half e_shstrndx;
} Elf64_Ehdr;

/* These constants define the permissions on sections in the program
   header, p_flags. */
#define PF_R            0x4
#define PF_W            0x2
#define PF_X            0x1

00094 typedef struct elf32_phdr {
      Elf32_Word p_type;
      Elf32_Off p_offset;
      Elf32_Addr p_vaddr;
      Elf32_Addr p_paddr;
      Elf32_Word p_filesz;
      Elf32_Word p_memsz;
      Elf32_Word p_flags;
      Elf32_Word p_align;
} Elf32_Phdr;

00105 typedef struct elf64_phdr {
      Elf64_Word p_type;
      Elf64_Word p_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, file & memory */
} Elf64_Phdr;

#define     EI_MAG0           0     /* e_ident[] indexes */
#define     EI_MAG1           1
#define     EI_MAG2           2
#define     EI_MAG3           3
#define     EI_CLASS    4
#define     EI_DATA           5
#define     EI_VERSION  6
#define     EI_OSABI    7
#define     EI_PAD            8

#define     ELFMAG0           0x7f  /* EI_MAG */
#define     ELFMAG1           'E'
#define     ELFMAG2           'L'
#define     ELFMAG3           'F'
#define     ELFMAG            "\177ELF"
#define     SELFMAG           4

#define     ELFCLASSNONE      0     /* EI_CLASS */
#define     ELFCLASS32  1
#define     ELFCLASS64  2
#define     ELFCLASSNUM 3

#define ELFDATANONE     0     /* e_ident[EI_DATA] */
#define ELFDATA2LSB     1
#define ELFDATA2MSB     2

#define EV_NONE         0     /* e_version, EI_VERSION */
#define EV_CURRENT      1
#define EV_NUM          2

#define ELFOSABI_NONE   0
#define ELFOSABI_LINUX  3

00149 struct elf_info {
      unsigned long loadsize;
      unsigned long memsize;
      unsigned long elfoffset;
};
int parse_elf64(void *hdr, struct elf_info *info);
int parse_elf32(void *hdr, struct elf_info *info);

#endif                        /* _PPC_BOOT_ELF_H_ */

Generated by  Doxygen 1.6.0   Back to index