include/binfmt_elf.h

   1 /*
   2  * (C) Copyright 2007-2010  Josef 'Jeff' Sipek <jeffpc@josefsipek.net>
   3  *
   4  * This file is released under the GPLv2.  See the COPYING file for more
   5  * details.
   6  */
   7
   8 #ifndef __BINFMT_ELF_H
   9 #define __BINFMT_ELF_H
  10
  11 #define EI_MAG0         0
  12 #define EI_MAG1         1
  13 #define EI_MAG2         2
  14 #define EI_MAG3         3
  15 #define EI_CLASS        4
  16 #define EI_DATA         5
  17 #define EI_VERSION      6
  18 #define EI_OSABI        7
  19 #define EI_ABIVERSION   8
  20 #define EI_PAD          9
  21 #define EI_NIDENT       16
  22
  23 #define ELFMAG0         0x7f
  24 #define ELFMAG1         'E'
  25 #define ELFMAG2         'L'
  26 #define ELFMAG3         'F'
  27
  28 #define ELFCLASSNONE    0
  29 #define ELFCLASS32      1
  30 #define ELFCLASS64      2
  31
  32 #define ELFDATANONE     0
  33 #define ELFDATA2LSB     1
  34 #define ELFDATA2MSB     2
  35
  36 #define EV_CURRENT      1
  37
  38 #define ELFOSABI_NONE   0
  39
  40 #define ET_NONE         0
  41 #define ET_REL          1
  42 #define ET_EXEC         2
  43 #define ET_DYN          3
  44 #define ET_CORE         4
  45 #define ET_LOOS         0xfe00
  46 #define ET_HIOS         0xfeff
  47 #define ET_LOPROC       0xff00
  48 #define ET_HIPROC       0xffff
  49
  50 #define EM_S390         22
  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 #define SHT_INIT_ARRAY          14
  65 #define SHT_FINI_ARRAY          15
  66 #define SHT_PREINI_ARRAY        16
  67 #define SHT_GROUP               17
  68 #define SHT_SYMTAB_SHNDX        18
  69 #define SHT_LOOS                0x60000000
  70 #define SHT_HIOS                0x6fffffff
  71 #define SHT_LOPROC              0x70000000
  72 #define SHT_HIPROC              0x7fffffff
  73 #define SHT_LOUSER              0x80000000
  74 #define SHT_HIUSER              0xffffffff
  75
  76 #define PT_NULL         0
  77 #define PT_LOAD         1
  78 #define PT_DYNAMIC      2
  79 #define PT_INTERP       3
  80 #define PT_NOTE         4
  81 #define PT_SHLIB        5
  82 #define PT_PHDR         6
  83 #define PT_TLS          7
  84 #define PT_LOOS         0x60000000
  85 #define PT_HIOS         0x6fffffff
  86 #define PT_LOPROC       0x70000000
  87 #define PT_HIPROC       0x7fffffff
  88
  89 #define PF_X            0x1
  90 #define PF_W            0x2
  91 #define PF_R            0x4
  92 #define PF_MASKOS       0x0ff00000
  93 #define PF_MAKSPROC     0xf0000000
  94
  95 #define STB_LOCAL       0
  96 #define STB_GLOBAL      1
  97 #define STB_WEAK        2
  98 #define STB_LOOS        10
  99 #define STB_HIOS        12
 100 #define STB_LOPROC      13
 101 #define STB_HIPROC      15
 102
 103 #define STT_NOTYPE      0
 104 #define STT_OBJECT      1
 105 #define STT_FUNC        2
 106 #define STT_SECTION     3
 107 #define STT_FILE        4
 108 #define STT_LOOS        10
 109 #define STT_HIOS        12
 110 #define STT_LOPROC      13
 111 #define STT_HIPROC      15
 112
 113 typedef u32 Elf32_Addr;
 114 typedef u32 Elf32_Off;
 115 typedef u16 Elf32_Half;
 116 typedef u32 Elf32_Word;
 117 typedef s32 Elf32_Sword;
 118
 119 typedef u64 Elf64_Addr;
 120 typedef u64 Elf64_Off;
 121 typedef u16 Elf64_Half;
 122 typedef u32 Elf64_Word;
 123 typedef s32 Elf64_Sword;
 124 typedef u64 Elf64_Xword;
 125 typedef s64 Elf64_Sxword;
 126
 127 /*
 128  * ELF file header
 129  */
 130 typedef struct {
 131         unsigned char   e_ident[EI_NIDENT];     /* ELF identification */
 132         Elf32_Half      e_type;                 /* Object file type */
 133         Elf32_Half      e_machine;              /* Machine type */
 134         Elf32_Word      e_version;              /* Object file version */
 135         Elf32_Addr      e_entry;                /* Entry point address */
 136         Elf32_Off       e_phoff;                /* Program header offset */
 137         Elf32_Off       e_shoff;                /* Section header offset */
 138         Elf32_Word      e_flags;                /* Processor-specific flags */
 139         Elf32_Half      e_ehsize;               /* ELF header size */
 140         Elf32_Half      e_phentsize;            /* Size of program header entry */
 141         Elf32_Half      e_phnum;                /* Number of program header entries */
 142         Elf32_Half      e_shentsize;            /* Size of section header entries */
 143         Elf32_Half      e_shnum;                /* Number of section header entries */
 144         Elf32_Half      e_shstrndx;             /* Section name string table index */
 145 } Elf32_Ehdr;
 146
 147 typedef struct {
 148         unsigned char   e_ident[EI_NIDENT];     /* ELF identification */
 149         Elf64_Half      e_type;                 /* Object file type */
 150         Elf64_Half      e_machine;              /* Machine type */
 151         Elf64_Word      e_version;              /* Object file version */
 152         Elf64_Addr      e_entry;                /* Entry point address */
 153         Elf64_Off       e_phoff;                /* Program header offset */
 154         Elf64_Off       e_shoff;                /* Section header offset */
 155         Elf64_Word      e_flags;                /* Processor-specific flags */
 156         Elf64_Half      e_ehsize;               /* ELF header size */
 157         Elf64_Half      e_phentsize;            /* Size of program header entry */
 158         Elf64_Half      e_phnum;                /* Number of program header entries */
 159         Elf64_Half      e_shentsize;            /* Size of section header entries */
 160         Elf64_Half      e_shnum;                /* Number of section header entries */
 161         Elf64_Half      e_shstrndx;             /* Section name string table index */
 162 } Elf64_Ehdr;
 163
 164 /* combined header for easy pointer casting */
 165 typedef union {
 166         Elf32_Ehdr s390;
 167         Elf64_Ehdr z;
 168 } Elf_Ehdr;
 169
 170 /*
 171  * ELF section header
 172  */
 173 typedef struct {
 174         Elf32_Word      sh_name;                /* Section name */
 175         Elf32_Word      sh_type;                /* Section type */
 176         Elf32_Word      sh_flags;               /* Section attributes */
 177         Elf32_Addr      sh_addr;                /* Virtual address in memory */
 178         Elf32_Off       sh_offset;              /* Offset in file */
 179         Elf32_Word      sh_size;                /* Size of section */
 180         Elf32_Word      sh_link;                /* Link to other section */
 181         Elf32_Word      sh_info;                /* Misc information */
 182         Elf32_Word      sh_addralign;           /* Address alignment boundary */
 183         Elf32_Word      sh_entsize;             /* Size of entries, if section has table */
 184 } Elf32_Shdr;
 185
 186 typedef struct {
 187         Elf64_Word      sh_name;                /* Section name */
 188         Elf64_Word      sh_type;                /* Section type */
 189         Elf64_Xword     sh_flags;               /* Section attributes */
 190         Elf64_Addr      sh_addr;                /* Virtual address in memory */
 191         Elf64_Off       sh_offset;              /* Offset in file */
 192         Elf64_Xword     sh_size;                /* Size of section */
 193         Elf64_Word      sh_link;                /* Link to other section */
 194         Elf64_Word      sh_info;                /* Misc information */
 195         Elf64_Xword     sh_addralign;           /* Address alignment boundary */
 196         Elf64_Xword     sh_entsize;             /* Size of entries, if section has table */
 197 } Elf64_Shdr;
 198
 199 /* combined header for easy pointer casting */
 200 typedef union {
 201         Elf32_Shdr s390;
 202         Elf64_Shdr z;
 203 } Elf_Shdr;
 204
 205 /*
 206  * ELF program header
 207  */
 208 typedef struct {
 209         Elf32_Word      p_type;                 /* Segment type */
 210         Elf32_Off       p_offset;               /* Segment file offset */
 211         Elf32_Addr      p_vaddr;                /* Segment virt. addr */
 212         Elf32_Addr      p_paddr;                /* <undefined> */
 213         Elf32_Word      p_filesz;               /* Segment size in file */
 214         Elf32_Word      p_memsz;                /* Segment size in mem */
 215         Elf32_Word      p_flags;                /* Segment flags */
 216         Elf32_Word      p_align;                /* Segment alignment */
 217 } Elf32_Phdr;
 218
 219 typedef struct {
 220         Elf64_Word      p_type;                 /* Segment type */
 221         Elf64_Word      p_flags;                /* Segment file offset */
 222         Elf64_Off       p_offset;               /* Segment virt. addr */
 223         Elf64_Addr      p_vaddr;                /* <undefined> */
 224         Elf64_Addr      p_paddr;                /* Segment size in file */
 225         Elf64_Xword     p_filesz;               /* Segment size in mem */
 226         Elf64_Xword     p_memsz;                /* Segment flags */
 227         Elf64_Xword     p_align;                /* Segment alignment */
 228 } Elf64_Phdr;
 229
 230 /* combined header for easy pointer casting */
 231 typedef union {
 232         Elf32_Phdr s390;
 233         Elf64_Phdr z;
 234 } Elf_Phdr;
 235
 236 /*
 237  * ELF symbol table entries
 238  */
 239 typedef struct {
 240         Elf64_Word      st_name;                /* Symbol name */
 241         unsigned char   st_info;                /* Type and Binding attributes */
 242         unsigned char   st_other;               /* Reserved */
 243         Elf64_Half      st_shndx;               /* Section table index */
 244         Elf64_Addr      st_value;               /* Symbol value */
 245         Elf64_Xword     st_size;                /* Size of object */
 246 } Elf64_Sym;
 247
 248 #endif