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      1 /*
      2  * sys/elf32.h
      3  */
      4 
      5 #ifndef _SYS_ELF32_H
      6 #define _SYS_ELF32_H
      7 
      8 #include <sys/elfcommon.h>
      9 
     10 /* ELF standard typedefs (yet more proof that <stdint.h> was way overdue) */
     11 typedef uint16_t Elf32_Half;
     12 typedef int16_t Elf32_SHalf;
     13 typedef uint32_t Elf32_Word;
     14 typedef int32_t Elf32_Sword;
     15 typedef uint64_t Elf32_Xword;
     16 typedef int64_t Elf32_Sxword;
     17 
     18 typedef uint32_t Elf32_Off;
     19 typedef uint32_t Elf32_Addr;
     20 typedef uint16_t Elf32_Section;
     21 
     22 /* Dynamic header */
     23 
     24 typedef struct elf32_dyn {
     25     Elf32_Sword d_tag;
     26     union {
     27 	Elf32_Sword d_val;
     28 	Elf32_Addr d_ptr;
     29     } d_un;
     30 } Elf32_Dyn;
     31 
     32 /* Relocations */
     33 
     34 #define ELF32_R_SYM(x)	((x) >> 8)
     35 #define ELF32_R_TYPE(x)	((x) & 0xff)
     36 
     37 typedef struct elf32_rel {
     38     Elf32_Addr r_offset;
     39     Elf32_Word r_info;
     40 } Elf32_Rel;
     41 
     42 typedef struct elf32_rela {
     43     Elf32_Addr r_offset;
     44     Elf32_Word r_info;
     45     Elf32_Sword r_addend;
     46 } Elf32_Rela;
     47 
     48 /* Symbol */
     49 
     50 typedef struct elf32_sym {
     51     Elf32_Word st_name;
     52     Elf32_Addr st_value;
     53     Elf32_Word st_size;
     54     unsigned char st_info;
     55     unsigned char st_other;
     56     Elf32_Half st_shndx;
     57 } Elf32_Sym;
     58 
     59 /* Main file header */
     60 
     61 typedef struct elf32_hdr {
     62     unsigned char e_ident[EI_NIDENT];
     63     Elf32_Half e_type;
     64     Elf32_Half e_machine;
     65     Elf32_Word e_version;
     66     Elf32_Addr e_entry;
     67     Elf32_Off e_phoff;
     68     Elf32_Off e_shoff;
     69     Elf32_Word e_flags;
     70     Elf32_Half e_ehsize;
     71     Elf32_Half e_phentsize;
     72     Elf32_Half e_phnum;
     73     Elf32_Half e_shentsize;
     74     Elf32_Half e_shnum;
     75     Elf32_Half e_shstrndx;
     76 } Elf32_Ehdr;
     77 
     78 /* Program header */
     79 
     80 typedef struct elf32_phdr {
     81     Elf32_Word p_type;
     82     Elf32_Off p_offset;
     83     Elf32_Addr p_vaddr;
     84     Elf32_Addr p_paddr;
     85     Elf32_Word p_filesz;
     86     Elf32_Word p_memsz;
     87     Elf32_Word p_flags;
     88     Elf32_Word p_align;
     89 } Elf32_Phdr;
     90 
     91 /* Section header */
     92 
     93 typedef struct elf32_shdr {
     94     Elf32_Word sh_name;
     95     Elf32_Word sh_type;
     96     Elf32_Word sh_flags;
     97     Elf32_Addr sh_addr;
     98     Elf32_Off sh_offset;
     99     Elf32_Word sh_size;
    100     Elf32_Word sh_link;
    101     Elf32_Word sh_info;
    102     Elf32_Word sh_addralign;
    103     Elf32_Word sh_entsize;
    104 } Elf32_Shdr;
    105 
    106 /* Note header */
    107 typedef struct elf32_note {
    108     Elf32_Word n_namesz;	/* Name size */
    109     Elf32_Word n_descsz;	/* Content size */
    110     Elf32_Word n_type;		/* Content type */
    111 } Elf32_Nhdr;
    112 
    113 #endif /* _SYS_ELF32_H */
    114