inc/elf.h

   1 #ifndef JOS_INC_ELF_H
   2 #define JOS_INC_ELF_H
   3
   4 #define ELF_MAGIC 0x464C457FU   /* "\x7FELF" in little endian */
   5
   6 struct Elf {
   7         uint32_t e_magic;       // must equal ELF_MAGIC
   8         uint8_t e_elf[12];
   9         uint16_t e_type;
  10         uint16_t e_machine;
  11         uint32_t e_version;
  12         uint32_t e_entry;
  13         uint32_t e_phoff;
  14         uint32_t e_shoff;
  15         uint32_t e_flags;
  16         uint16_t e_ehsize;
  17         uint16_t e_phentsize;
  18         uint16_t e_phnum;
  19         uint16_t e_shentsize;
  20         uint16_t e_shnum;
  21         uint16_t e_shstrndx;
  22 };
  23
  24 struct Proghdr {
  25         uint32_t p_type;
  26         uint32_t p_offset;
  27         uint32_t p_va;
  28         uint32_t p_pa;
  29         uint32_t p_filesz;
  30         uint32_t p_memsz;
  31         uint32_t p_flags;
  32         uint32_t p_align;
  33 };
  34
  35 struct Secthdr {
  36         uint32_t sh_name;
  37         uint32_t sh_type;
  38         uint32_t sh_flags;
  39         uint32_t sh_addr;
  40         uint32_t sh_offset;
  41         uint32_t sh_size;
  42         uint32_t sh_link;
  43         uint32_t sh_info;
  44         uint32_t sh_addralign;
  45         uint32_t sh_entsize;
  46 };
  47
  48 // Values for Proghdr::p_type
  49 #define ELF_PROG_LOAD           1
  50
  51 // Flag bits for Proghdr::p_flags
  52 #define ELF_PROG_FLAG_EXEC      1
  53 #define ELF_PROG_FLAG_WRITE     2
  54 #define ELF_PROG_FLAG_READ      4
  55
  56 // Values for Secthdr::sh_type
  57 #define ELF_SHT_NULL            0
  58 #define ELF_SHT_PROGBITS        1
  59 #define ELF_SHT_SYMTAB          2
  60 #define ELF_SHT_STRTAB          3
  61
  62 // Values for Secthdr::sh_name
  63 #define ELF_SHN_UNDEF           0
  64
  65 #endif /* !JOS_INC_ELF_H */