4 #include <linux/types.h>
7 /* 32-bit ELF base types. */
8 typedef __u32 Elf32_Addr;
9 typedef __u16 Elf32_Half;
10 typedef __u32 Elf32_Off;
11 typedef __s32 Elf32_Sword;
12 typedef __u32 Elf32_Word;
14 /* 64-bit ELF base types. */
15 typedef __u64 Elf64_Addr;
16 typedef __u16 Elf64_Half;
17 typedef __s16 Elf64_SHalf;
18 typedef __u64 Elf64_Off;
19 typedef __s32 Elf64_Sword;
20 typedef __u32 Elf64_Word;
21 typedef __u64 Elf64_Xword;
22 typedef __s64 Elf64_Sxword;
24 /* These constants are for the segment types stored in the image headers */
32 #define PT_LOOS 0x60000000
33 #define PT_HIOS 0x6fffffff
34 #define PT_LOPROC 0x70000000
35 #define PT_HIPROC 0x7fffffff
36 #define PT_GNU_EH_FRAME 0x6474e550
38 #define PT_GNU_STACK (PT_LOOS + 0x474e551)
40 /* These constants define the different elf file types */
46 #define ET_LOPROC 0xff00
47 #define ET_HIPROC 0xffff
49 /* These constants define the various ELF target machines */
56 #define EM_486 6 /* Perhaps disused */
59 #define EM_MIPS 8 /* MIPS R3000 (officially, big-endian only) */
61 #define EM_MIPS_RS4_BE 10 /* MIPS R4000 big-endian */
63 #define EM_PARISC 15 /* HPPA */
65 #define EM_SPARC32PLUS 18 /* Sun's "v8plus" */
67 #define EM_PPC 20 /* PowerPC */
68 #define EM_PPC64 21 /* PowerPC64 */
70 #define EM_SH 42 /* SuperH */
72 #define EM_SPARCV9 43 /* SPARC v9 64-bit */
74 #define EM_IA_64 50 /* HP/Intel IA-64 */
76 #define EM_X86_64 62 /* AMD x86-64 */
78 #define EM_S390 22 /* IBM S/390 */
80 #define EM_CRIS 76 /* Axis Communications 32-bit embedded processor */
82 #define EM_V850 87 /* NEC v850 */
84 #define EM_H8_300 46 /* Hitachi H8/300,300H,H8S */
87 * This is an interim value that we will use until the committee comes
88 * up with a final number.
90 #define EM_ALPHA 0x9026
92 /* Bogus old v850 magic number, used by old tools. */
93 #define EM_CYGNUS_V850 0x9080
96 * This is the old interim value for S/390 architecture
98 #define EM_S390_OLD 0xA390
100 /* This is the info that is needed to parse the dynamic section of the file */
103 #define DT_PLTRELSZ 2
117 #define DT_SYMBOLIC 16
123 #define DT_TEXTREL 22
125 #define DT_LOPROC 0x70000000
126 #define DT_HIPROC 0x7fffffff
128 /* This info is needed when parsing the symbol table */
136 #define STT_SECTION 3
139 #define ELF_ST_BIND(x) ((x) >> 4)
140 #define ELF_ST_TYPE(x) (((unsigned int) x) & 0xf)
141 #define ELF32_ST_BIND(x) ELF_ST_BIND(x)
142 #define ELF32_ST_TYPE(x) ELF_ST_TYPE(x)
143 #define ELF64_ST_BIND(x) ELF_ST_BIND(x)
144 #define ELF64_ST_TYPE(x) ELF_ST_TYPE(x)
146 /* Symbolic values for the entries in the auxiliary table
147 put on the initial stack */
148 #define AT_NULL 0 /* end of vector */
149 #define AT_IGNORE 1 /* entry should be ignored */
150 #define AT_EXECFD 2 /* file descriptor of program */
151 #define AT_PHDR 3 /* program headers for program */
152 #define AT_PHENT 4 /* size of program header entry */
153 #define AT_PHNUM 5 /* number of program headers */
154 #define AT_PAGESZ 6 /* system page size */
155 #define AT_BASE 7 /* base address of interpreter */
156 #define AT_FLAGS 8 /* flags */
157 #define AT_ENTRY 9 /* entry point of program */
158 #define AT_NOTELF 10 /* program is not ELF */
159 #define AT_UID 11 /* real uid */
160 #define AT_EUID 12 /* effective uid */
161 #define AT_GID 13 /* real gid */
162 #define AT_EGID 14 /* effective gid */
163 #define AT_PLATFORM 15 /* string identifying CPU for optimizations */
164 #define AT_HWCAP 16 /* arch dependent hints at CPU capabilities */
165 #define AT_CLKTCK 17 /* frequency at which times() increments */
167 #define AT_SECURE 23 /* secure mode boolean */
169 typedef struct dynamic{
178 Elf64_Sxword d_tag; /* entry tag value */
185 /* The following are used with relocations */
186 #define ELF32_R_SYM(x) ((x) >> 8)
187 #define ELF32_R_TYPE(x) ((x) & 0xff)
189 #define ELF64_R_SYM(i) ((i) >> 32)
190 #define ELF64_R_TYPE(i) ((i) & 0xffffffff)
192 typedef struct elf32_rel {
197 typedef struct elf64_rel {
198 Elf64_Addr r_offset; /* Location at which to apply the action */
199 Elf64_Xword r_info; /* index and type of relocation */
202 typedef struct elf32_rela{
205 Elf32_Sword r_addend;
208 typedef struct elf64_rela {
209 Elf64_Addr r_offset; /* Location at which to apply the action */
210 Elf64_Xword r_info; /* index and type of relocation */
211 Elf64_Sxword r_addend; /* Constant addend used to compute value */
214 typedef struct elf32_sym{
218 unsigned char st_info;
219 unsigned char st_other;
223 typedef struct elf64_sym {
224 Elf64_Word st_name; /* Symbol name, index in string tbl */
225 unsigned char st_info; /* Type and binding attributes */
226 unsigned char st_other; /* No defined meaning, 0 */
227 Elf64_Half st_shndx; /* Associated section index */
228 Elf64_Addr st_value; /* Value of the symbol */
229 Elf64_Xword st_size; /* Associated symbol size */
235 typedef struct elf32_hdr{
236 unsigned char e_ident[EI_NIDENT];
238 Elf32_Half e_machine;
239 Elf32_Word e_version;
240 Elf32_Addr e_entry; /* Entry point */
245 Elf32_Half e_phentsize;
247 Elf32_Half e_shentsize;
249 Elf32_Half e_shstrndx;
252 typedef struct elf64_hdr {
253 unsigned char e_ident[16]; /* ELF "magic number" */
255 Elf64_Half e_machine;
256 Elf64_Word e_version;
257 Elf64_Addr e_entry; /* Entry point virtual address */
258 Elf64_Off e_phoff; /* Program header table file offset */
259 Elf64_Off e_shoff; /* Section header table file offset */
262 Elf64_Half e_phentsize;
264 Elf64_Half e_shentsize;
266 Elf64_Half e_shstrndx;
269 /* These constants define the permissions on sections in the program
275 typedef struct elf32_phdr{
286 typedef struct elf64_phdr {
289 Elf64_Off p_offset; /* Segment file offset */
290 Elf64_Addr p_vaddr; /* Segment virtual address */
291 Elf64_Addr p_paddr; /* Segment physical address */
292 Elf64_Xword p_filesz; /* Segment size in file */
293 Elf64_Xword p_memsz; /* Segment size in memory */
294 Elf64_Xword p_align; /* Segment alignment, file & memory */
299 #define SHT_PROGBITS 1
304 #define SHT_DYNAMIC 6
309 #define SHT_DYNSYM 11
311 #define SHT_LOPROC 0x70000000
312 #define SHT_HIPROC 0x7fffffff
313 #define SHT_LOUSER 0x80000000
314 #define SHT_HIUSER 0xffffffff
317 #define SHF_WRITE 0x1
318 #define SHF_ALLOC 0x2
319 #define SHF_EXECINSTR 0x4
320 #define SHF_MASKPROC 0xf0000000
322 /* special section indexes */
324 #define SHN_LORESERVE 0xff00
325 #define SHN_LOPROC 0xff00
326 #define SHN_HIPROC 0xff1f
327 #define SHN_ABS 0xfff1
328 #define SHN_COMMON 0xfff2
329 #define SHN_HIRESERVE 0xffff
340 Elf32_Word sh_addralign;
341 Elf32_Word sh_entsize;
344 typedef struct elf64_shdr {
345 Elf64_Word sh_name; /* Section name, index in string tbl */
346 Elf64_Word sh_type; /* Type of section */
347 Elf64_Xword sh_flags; /* Miscellaneous section attributes */
348 Elf64_Addr sh_addr; /* Section virtual addr at execution */
349 Elf64_Off sh_offset; /* Section file offset */
350 Elf64_Xword sh_size; /* Size of section in bytes */
351 Elf64_Word sh_link; /* Index of another section */
352 Elf64_Word sh_info; /* Additional section information */
353 Elf64_Xword sh_addralign; /* Section alignment */
354 Elf64_Xword sh_entsize; /* Entry size if section holds table */
357 #define EI_MAG0 0 /* e_ident[] indexes */
367 #define ELFMAG0 0x7f /* EI_MAG */
371 #define ELFMAG "\177ELF"
374 #define ELFCLASSNONE 0 /* EI_CLASS */
377 #define ELFCLASSNUM 3
379 #define ELFDATANONE 0 /* e_ident[EI_DATA] */
380 #define ELFDATA2LSB 1
381 #define ELFDATA2MSB 2
383 #define EV_NONE 0 /* e_version, EI_VERSION */
387 #define ELFOSABI_NONE 0
388 #define ELFOSABI_LINUX 3
391 #define ELF_OSABI ELFOSABI_NONE
394 /* Notes used in ET_CORE */
395 #define NT_PRSTATUS 1
397 #define NT_PRPSINFO 3
398 #define NT_TASKSTRUCT 4
400 #define NT_PRXFPREG 0x46e62b7f /* copied from gdb5.1/include/elf/common.h */
403 /* Note header in a PT_NOTE section */
404 typedef struct elf32_note {
405 Elf32_Word n_namesz; /* Name size */
406 Elf32_Word n_descsz; /* Content size */
407 Elf32_Word n_type; /* Content type */
410 /* Note header in a PT_NOTE section */
411 typedef struct elf64_note {
412 Elf64_Word n_namesz; /* Name size */
413 Elf64_Word n_descsz; /* Content size */
414 Elf64_Word n_type; /* Content type */
417 #if ELF_CLASS == ELFCLASS32
419 extern Elf32_Dyn _DYNAMIC [];
420 #define elfhdr elf32_hdr
421 #define elf_phdr elf32_phdr
422 #define elf_note elf32_note
426 extern Elf64_Dyn _DYNAMIC [];
427 #define elfhdr elf64_hdr
428 #define elf_phdr elf64_phdr
429 #define elf_note elf64_note
434 #endif /* _LINUX_ELF_H */