system/include/ke/elf.h

   1 /*
   2 Copyright (C) 2008  Mathias Gottschlag
   3
   4 Permission is hereby granted, free of charge, to any person obtaining a copy of
   5 this software and associated documentation files (the "Software"), to deal in the
   6 Software without restriction, including without limitation the rights to use,
   7 copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
   8 Software, and to permit persons to whom the Software is furnished to do so,
   9 subject to the following conditions:
  10
  11 The above copyright notice and this permission notice shall be included in all
  12 copies or substantial portions of the Software.
  13
  14 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
  15 INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
  16 PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
  17 HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  18 OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  19 SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  20 */
  21
  22 #ifndef KE_ELF_H_INCLUDED
  23 #define KE_ELF_H_INCLUDED
  24
  25 #include <stdint.h>
  26 #include "mm/memory.h"
  27
  28 #define EI_NIDENT 16
  29
  30 #define EI_MAG0 0
  31 #define EI_MAG1 1
  32 #define EI_MAG2 2
  33 #define EI_MAG3 3
  34 #define EI_CLASS 4
  35 #define EI_DATA 5
  36 #define EI_VERSION 6
  37 #define EI_PAD 7
  38
  39 #define ELFMAG0 0x7F
  40 #define ELFMAG1 'E'
  41 #define ELFMAG2 'L'
  42 #define ELFMAG3 'F'
  43
  44 #define ELFCLASSNONE 0
  45 #define ELFCLASS32 1
  46 #define ELFCLASS64 2
  47
  48 #define ET_DYN 3
  49
  50 #define EM_386 3
  51
  52 #define SHT_NULL 0
  53 #define SHT_PROGBITS 1
  54 #define SHT_SYMTAB 2
  55 #define SHT_STRTAB 3
  56 #define SHT_RELA 4
  57 #define SHT_HASH 5
  58 #define SHT_DYNAMIC 6
  59 #define SHT_NOTE 7
  60 #define SHT_NOBITS 8
  61 #define SHT_REL 9
  62 #define SHT_SHLIB 10
  63 #define SHT_DYNSYM 11
  64
  65 #define SHF_WRITE 1
  66 #define SHF_ALLOC 2
  67 #define SHF_EXECINSTR 4
  68 #define SHF_MASKPROC 0xF0000000
  69
  70 #define STB_LOCAL 0
  71 #define STB_GLOBAL 1
  72 #define STB_WEAK 2
  73
  74 #define STT_NOTYPE 0
  75 #define STT_OBJECT 1
  76 #define STT_FUNCTION 2
  77 #define STT_SECTION 3
  78 #define STT_FILE 4
  79
  80 #define ELF32_ST_BIND(i) ((i)>>4)
  81 #define ELF32_ST_TYPE(i) ((i)&0xF)
  82
  83 #define SHN_ABS 0
  84 #define SHN_COMMON 0
  85 #define SHN_UNDEF 0
  86
  87 #define PT_NULL 0
  88 #define PT_LOAD 1
  89 #define PT_DYNAMIC 2
  90 #define PT_INTERP 3
  91 #define PT_NOTE 4
  92 #define PT_SHLIB 5
  93 #define PT_PHDR 6
  94
  95 #define ELF32_R_SYM(i) ((i)>>8)
  96 #define ELF32_R_TYPE(i) ((unsigned char)(i))
  97
  98 #define R_386_NONE 0
  99 #define R_386_32 1
 100 #define R_386_PC32 2
 101
 102 #define R_386_GLOB_DAT 6
 103 #define R_386_JUMP_SLOT 7
 104 #define R_386_RELATIVE 8
 105
 106 typedef struct ElfHeader
 107 {
 108         uint8_t e_ident[EI_NIDENT];
 109         uint16_t e_type;
 110         uint16_t e_machine;
 111         uint32_t e_version;
 112         uint32_t e_entry;
 113         uint32_t e_phoff;
 114         uint32_t e_shoff;
 115         uint32_t e_flags;
 116         uint16_t e_ehsize;
 117         uint16_t e_phentsize;
 118         uint16_t e_phnum;
 119         uint16_t e_shentsize;
 120         uint16_t e_shnum;
 121         uint16_t e_shstrndx;
 122 } ElfHeader;
 123
 124 typedef struct ElfSectionHeader
 125 {
 126         uint32_t sh_name;
 127         uint32_t sh_type;
 128         uint32_t sh_flags;
 129         uint32_t sh_addr;
 130         uint32_t sh_offset;
 131         uint32_t sh_size;
 132         uint32_t sh_link;
 133         uint32_t sh_info;
 134         uint32_t sh_addralign;
 135         uint32_t sh_entsize;
 136 } ElfSectionHeader;
 137
 138 typedef struct ElfSymbol
 139 {
 140         uint32_t st_name;
 141         uint32_t st_value;
 142         uint32_t st_size;
 143         uint8_t st_info;
 144         uint8_t st_other;
 145         uint16_t st_shndx;
 146 } ElfSymbol;
 147
 148 typedef struct ElfRel
 149 {
 150         uint32_t r_offset;
 151         uint32_t r_info;
 152 } ElfRel;
 153
 154 typedef struct ElfRela
 155 {
 156         uint32_t r_offset;
 157         uint32_t r_info;
 158         uint32_t r_addend;
 159 } ElfRela;
 160
 161 typedef struct ElfProgramHeader
 162 {
 163         uint32_t p_type;
 164         uint32_t p_offset;
 165         uint32_t p_vaddr;
 166         uint32_t p_paddr;
 167         uint32_t p_filesz;
 168         uint32_t p_memsz;
 169         uint32_t p_flags;
 170         uint32_t p_align;
 171 } ElfProgramHeader;
 172
 173 int keElfMapProgram(MmAddressSpace *addrspace, char *program, uint32_t size);
 174
 175 #endif
 176