arch/ppc-sam440/boot/parthenope/src/elf.h

   1 #ifndef ELF_H_
   2 #define ELF_H_
   3
   4 /*
   5  * $Id$
   6  *
   7  * This program is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU General Public License as
   9  * published by the Free Software Foundation; either version 2 of
  10  * the License, or (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program; if not, write to the Free Software
  19  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  20  * MA 02111-1307 USA
  21  */
  22
  23 #include "context.h"
  24
  25 struct bss_tracker {
  26         void *addr;
  27         unsigned int length;
  28 };
  29
  30 extern struct bss_tracker tracker[];
  31
  32 int load_elf_file(const char *name, void *file);
  33 char *get_ptr_rw();
  34 char *get_ptr_ro();
  35
  36 #define SHT_PROGBITS    1
  37 #define SHT_SYMTAB  2
  38 #define SHT_STRTAB  3
  39 #define SHT_RELA    4
  40 #define SHT_NOBITS  8
  41 #define SHT_REL     9
  42
  43 #define ET_REL      1
  44 #define EM_386      3
  45 #define EM_PPC      20
  46 #define EM_X86_64   62
  47
  48 #define STT_OBJECT  1
  49 #define STT_FUNC    2
  50
  51 #define SHN_ABS     0xfff1
  52 #define SHN_COMMON  0xfff2
  53 #define SHN_UNDEF   0
  54
  55 #define SHF_WRITE   (1 << 0)
  56 #define SHF_ALLOC   (1 << 1)
  57 #define SHF_EXECINSTR   (1 << 2)
  58
  59 #define R_386_NONE      0
  60 #define R_386_32        1
  61 #define R_386_PC32      2
  62
  63 #define R_X86_64_NONE   0
  64 #define R_X86_64_64 1
  65 #define R_X86_64_PC32   2
  66 #define R_X86_64_32 10
  67 #define R_X86_64_32S    11
  68
  69 #define R_PPC_NONE      0
  70 #define R_PPC_ADDR32    1
  71 #define R_PPC_ADDR16_LO 4
  72 #define R_PPC_ADDR16_HA 6
  73 #define R_PPC_REL24     10
  74 #define R_PPC_REL32     26
  75
  76 #define ELF64_ST_TYPE(i)    ((i) & 0x0F)
  77
  78 #define ELF64_R_SYM(i)      (unsigned long)((i) >> 32)
  79 #define ELF64_R_TYPE(i)     (unsigned long)((i) & 0xffffffffULL)
  80 #define ELF64_R_INFO(sym, type) (((unsigned long long)(sym) << 32) + (type))
  81
  82 #define ELF32_R_SYM(i)          ((i) >> 8)
  83 #define ELF32_R_TYPE(i)         ((i) & 0xff)
  84 #define ELF32_R_INFO(sym, type) (((sym) << 8) + ((type) & 0xff))
  85
  86 struct elfheader {
  87         uint8_t ident[16];
  88         uint16_t type;
  89         uint16_t machine;
  90         uint32_t version;
  91         uint32_t entry;
  92         uint32_t phoff;
  93         uint32_t shoff;
  94         uint32_t flags;
  95         uint16_t ehsize;
  96         uint16_t phentsize;
  97         uint16_t phnum;
  98         uint16_t shentsize;
  99         uint16_t shnum;
 100         uint16_t shstrndx;
 101 };
 102
 103 struct sheader {
 104         uint32_t name;
 105         uint32_t type;
 106         uint32_t flags;
 107         uint32_t addr;
 108         uint32_t offset;
 109         uint32_t size;
 110         uint32_t link;
 111         uint32_t info;
 112         uint32_t addralign;
 113         uint32_t entsize;
 114 };
 115
 116 struct pheader {
 117         uint32_t p_type;        /* Segment type */
 118         uint32_t p_offset;      /* Segment file offset */
 119         uint32_t p_vaddr;       /* Segment virtual address */
 120         uint32_t p_paddr;       /* Segment physical address */
 121         uint32_t p_filesz;      /* Segment size in file */
 122         uint32_t p_memsz;       /* Segment size in memory */
 123         uint32_t p_flags;       /* Segment flags */
 124         uint32_t p_align;       /* Segment alignment */
 125 };
 126
 127 struct symbol {
 128         uint32_t name;
 129         uint32_t value;
 130         uint32_t size;
 131         uint8_t info;
 132         uint8_t other;
 133         uint16_t shindex;
 134 };
 135
 136 struct relo {
 137         uint32_t offset;
 138         uint32_t info;
 139         int32_t addend;
 140 };
 141
 142 #endif /*ELF_H_ */