output/elf64.h

   1 #ifndef OUTPUT_ELF64_H
   2 #define OUTPUT_ELF64_H
   3
   4 #include "output/elfcommon.h"
   5
   6 /* ELF standard typedefs (yet more proof that <stdint.h> was way overdue) */
   7 typedef uint16_t Elf64_Half;
   8 typedef int16_t Elf64_SHalf;
   9 typedef uint32_t Elf64_Word;
  10 typedef int32_t Elf64_Sword;
  11 typedef uint64_t Elf64_Xword;
  12 typedef int64_t Elf64_Sxword;
  13
  14 typedef uint64_t Elf64_Off;
  15 typedef uint64_t Elf64_Addr;
  16 typedef uint16_t Elf64_Section;
  17
  18 /* Dynamic header */
  19
  20 typedef struct elf64_dyn {
  21     Elf64_Sxword d_tag;
  22     union {
  23         Elf64_Xword d_val;
  24         Elf64_Addr d_ptr;
  25     } d_un;
  26 } Elf64_Dyn;
  27
  28 /* Relocations */
  29
  30 #define ELF64_R_SYM(x)  ((x) >> 32)
  31 #define ELF64_R_TYPE(x) ((x) & 0xffffffff)
  32
  33 typedef struct elf64_rel {
  34     Elf64_Addr r_offset;
  35     Elf64_Xword r_info;
  36 } Elf64_Rel;
  37
  38 typedef struct elf64_rela {
  39     Elf64_Addr r_offset;
  40     Elf64_Xword r_info;
  41     Elf64_Sxword r_addend;
  42 } Elf64_Rela;
  43
  44 enum reloc64_type {
  45     R_X86_64_NONE       =  0,   /* No reloc */
  46     R_X86_64_64         =  1,   /* Direct 64 bit  */
  47     R_X86_64_PC32       =  2,   /* PC relative 32 bit signed */
  48     R_X86_64_GOT32      =  3,   /* 32 bit GOT entry */
  49     R_X86_64_PLT32      =  4,   /* 32 bit PLT address */
  50     R_X86_64_COPY       =  5,   /* Copy symbol at runtime */
  51     R_X86_64_GLOB_DAT   =  6,   /* Create GOT entry */
  52     R_X86_64_JUMP_SLOT  =  7,   /* Create PLT entry */
  53     R_X86_64_RELATIVE   =  8,   /* Adjust by program base */
  54     R_X86_64_GOTPCREL   =  9,   /* 32 bit signed PC relative offset to GOT */
  55     R_X86_64_32         = 10,   /* Direct 32 bit zero extended */
  56     R_X86_64_32S        = 11,   /* Direct 32 bit sign extended */
  57     R_X86_64_16         = 12,   /* Direct 16 bit zero extended */
  58     R_X86_64_PC16       = 13,   /* 16 bit sign extended pc relative */
  59     R_X86_64_8          = 14,   /* Direct 8 bit sign extended  */
  60     R_X86_64_PC8        = 15,   /* 8 bit sign extended pc relative */
  61     R_X86_64_DTPMOD64   = 16,   /* ID of module containing symbol */
  62     R_X86_64_DTPOFF64   = 17,   /* Offset in module's TLS block */
  63     R_X86_64_TPOFF64    = 18,   /* Offset in initial TLS block */
  64     R_X86_64_TLSGD      = 19,   /* 32 bit signed PC relative offset
  65                                    to two GOT entries for GD symbol */
  66     R_X86_64_TLSLD      = 20,   /* 32 bit signed PC relative offset
  67                                    to two GOT entries for LD symbol */
  68     R_X86_64_DTPOFF32   = 21,   /* Offset in TLS block */
  69     R_X86_64_GOTTPOFF   = 22,   /* 32 bit signed PC relative offset
  70                                    to GOT entry for IE symbol */
  71     R_X86_64_TPOFF32    = 23,   /* Offset in initial TLS block */
  72     R_X86_64_PC64       = 24,   /* word64 S + A - P */
  73     R_X86_64_GOTOFF64   = 25,   /* word64 S + A - GOT */
  74     R_X86_64_GOTPC32    = 26,   /* word32 GOT + A - P */
  75     R_X86_64_GOT64      = 27,   /* word64 G + A */
  76     R_X86_64_GOTPCREL64 = 28,   /* word64 G + GOT - P + A */
  77     R_X86_64_GOTPC64    = 29,   /* word64 GOT - P + A */
  78     R_X86_64_GOTPLT64   = 30,   /* word64 G + A */
  79     R_X86_64_PLTOFF64   = 31,   /* word64 L - GOT + A */
  80     R_X86_64_SIZE32     = 32,   /* word32 Z + A */
  81     R_X86_64_SIZE64     = 33,   /* word64 Z + A */
  82     R_X86_64_GOTPC32_TLSDESC = 34,      /* word32 */
  83     R_X86_64_TLSDESC_CALL    = 35,      /* none */
  84     R_X86_64_TLSDESC    = 36    /* word64×2 */
  85 };
  86
  87 /* Symbol */
  88
  89 typedef struct elf64_sym {
  90     Elf64_Word st_name;
  91     unsigned char st_info;
  92     unsigned char st_other;
  93     Elf64_Half st_shndx;
  94     Elf64_Addr st_value;
  95     Elf64_Xword st_size;
  96 } Elf64_Sym;
  97
  98 /* Main file header */
  99
 100 typedef struct elf64_hdr {
 101     unsigned char e_ident[EI_NIDENT];
 102     Elf64_Half e_type;
 103     Elf64_Half e_machine;
 104     Elf64_Word e_version;
 105     Elf64_Addr e_entry;
 106     Elf64_Off e_phoff;
 107     Elf64_Off e_shoff;
 108     Elf64_Word e_flags;
 109     Elf64_Half e_ehsize;
 110     Elf64_Half e_phentsize;
 111     Elf64_Half e_phnum;
 112     Elf64_Half e_shentsize;
 113     Elf64_Half e_shnum;
 114     Elf64_Half e_shstrndx;
 115 } Elf64_Ehdr;
 116
 117 /* Program header */
 118
 119 typedef struct elf64_phdr {
 120     Elf64_Word p_type;
 121     Elf64_Word p_flags;
 122     Elf64_Off p_offset;
 123     Elf64_Addr p_vaddr;
 124     Elf64_Addr p_paddr;
 125     Elf64_Xword p_filesz;
 126     Elf64_Xword p_memsz;
 127     Elf64_Xword p_align;
 128 } Elf64_Phdr;
 129
 130 /* Section header */
 131
 132 typedef struct elf64_shdr {
 133     Elf64_Word sh_name;
 134     Elf64_Word sh_type;
 135     Elf64_Xword sh_flags;
 136     Elf64_Addr sh_addr;
 137     Elf64_Off sh_offset;
 138     Elf64_Xword sh_size;
 139     Elf64_Word sh_link;
 140     Elf64_Word sh_info;
 141     Elf64_Xword sh_addralign;
 142     Elf64_Xword sh_entsize;
 143 } Elf64_Shdr;
 144
 145 /* Note header */
 146 typedef struct elf64_note {
 147     Elf64_Word n_namesz;        /* Name size */
 148     Elf64_Word n_descsz;        /* Content size */
 149     Elf64_Word n_type;  /* Content type */
 150 } Elf64_Nhdr;
 151
 152 /* Both Elf32_Sym and Elf64_Sym use the same one-byte st_info field.  */
 153 #define ELF64_ST_BIND(val)              ELF32_ST_BIND (val)
 154 #define ELF64_ST_TYPE(val)              ELF32_ST_TYPE (val)
 155
 156 #endif /* OUTPUT_ELF64_H */