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 #define PT_GNU_STACK (PT_LOOS + 0x474e551)
42 /* These constants define the different elf file types */
48 #define ET_LOPROC 0xff00
49 #define ET_HIPROC 0xffff
51 /* These constants define the various ELF target machines */
58 #define EM_486 6 /* Perhaps disused */
61 #define EM_MIPS 8 /* MIPS R3000 (officially, big-endian only) */
63 #define EM_MIPS_RS4_BE 10 /* MIPS R4000 big-endian */
65 #define EM_PARISC 15 /* HPPA */
67 #define EM_SPARC32PLUS 18 /* Sun's "v8plus" */
69 #define EM_PPC 20 /* PowerPC */
70 #define EM_PPC64 21 /* PowerPC64 */
72 #define EM_SH 42 /* SuperH */
74 #define EM_SPARCV9 43 /* SPARC v9 64-bit */
76 #define EM_IA_64 50 /* HP/Intel IA-64 */
78 #define EM_X86_64 62 /* AMD x86-64 */
80 #define EM_S390 22 /* IBM S/390 */
82 #define EM_CRIS 76 /* Axis Communications 32-bit embedded processor */
84 #define EM_V850 87 /* NEC v850 */
86 #define EM_H8_300 46 /* Hitachi H8/300,300H,H8S */
89 * This is an interim value that we will use until the committee comes
90 * up with a final number.
92 #define EM_ALPHA 0x9026
94 /* Bogus old v850 magic number, used by old tools. */
95 #define EM_CYGNUS_V850 0x9080
98 * This is the old interim value for S/390 architecture
100 #define EM_S390_OLD 0xA390
102 /* This is the info that is needed to parse the dynamic section of the file */
105 #define DT_PLTRELSZ 2
119 #define DT_SYMBOLIC 16
125 #define DT_TEXTREL 22
127 #define DT_LOPROC 0x70000000
128 #define DT_HIPROC 0x7fffffff
130 /* This info is needed when parsing the symbol table */
138 #define STT_SECTION 3
141 #define ELF_ST_BIND(x) ((x) >> 4)
142 #define ELF_ST_TYPE(x) (((unsigned int) x) & 0xf)
143 #define ELF32_ST_BIND(x) ELF_ST_BIND(x)
144 #define ELF32_ST_TYPE(x) ELF_ST_TYPE(x)
145 #define ELF64_ST_BIND(x) ELF_ST_BIND(x)
146 #define ELF64_ST_TYPE(x) ELF_ST_TYPE(x)
148 /* Symbolic values for the entries in the auxiliary table
149 put on the initial stack */
150 #define AT_NULL 0 /* end of vector */
151 #define AT_IGNORE 1 /* entry should be ignored */
152 #define AT_EXECFD 2 /* file descriptor of program */
153 #define AT_PHDR 3 /* program headers for program */
154 #define AT_PHENT 4 /* size of program header entry */
155 #define AT_PHNUM 5 /* number of program headers */
156 #define AT_PAGESZ 6 /* system page size */
157 #define AT_BASE 7 /* base address of interpreter */
158 #define AT_FLAGS 8 /* flags */
159 #define AT_ENTRY 9 /* entry point of program */
160 #define AT_NOTELF 10 /* program is not ELF */
161 #define AT_UID 11 /* real uid */
162 #define AT_EUID 12 /* effective uid */
163 #define AT_GID 13 /* real gid */
164 #define AT_EGID 14 /* effective gid */
165 #define AT_PLATFORM 15 /* string identifying CPU for optimizations */
166 #define AT_HWCAP 16 /* arch dependent hints at CPU capabilities */
167 #define AT_CLKTCK 17 /* frequency at which times() increments */
169 #define AT_SECURE 23 /* secure mode boolean */
171 typedef struct dynamic{
180 Elf64_Sxword d_tag; /* entry tag value */
187 /* The following are used with relocations */
188 #define ELF32_R_SYM(x) ((x) >> 8)
189 #define ELF32_R_TYPE(x) ((x) & 0xff)
191 #define ELF64_R_SYM(i) ((i) >> 32)
192 #define ELF64_R_TYPE(i) ((i) & 0xffffffff)
194 typedef struct elf32_rel {
199 typedef struct elf64_rel {
200 Elf64_Addr r_offset; /* Location at which to apply the action */
201 Elf64_Xword r_info; /* index and type of relocation */
204 typedef struct elf32_rela{
207 Elf32_Sword r_addend;
210 typedef struct elf64_rela {
211 Elf64_Addr r_offset; /* Location at which to apply the action */
212 Elf64_Xword r_info; /* index and type of relocation */
213 Elf64_Sxword r_addend; /* Constant addend used to compute value */
216 typedef struct elf32_sym{
220 unsigned char st_info;
221 unsigned char st_other;
225 typedef struct elf64_sym {
226 Elf64_Word st_name; /* Symbol name, index in string tbl */
227 unsigned char st_info; /* Type and binding attributes */
228 unsigned char st_other; /* No defined meaning, 0 */
229 Elf64_Half st_shndx; /* Associated section index */
230 Elf64_Addr st_value; /* Value of the symbol */
231 Elf64_Xword st_size; /* Associated symbol size */
237 typedef struct elf32_hdr{
238 unsigned char e_ident[EI_NIDENT];
240 Elf32_Half e_machine;
241 Elf32_Word e_version;
242 Elf32_Addr e_entry; /* Entry point */
247 Elf32_Half e_phentsize;
249 Elf32_Half e_shentsize;
251 Elf32_Half e_shstrndx;
254 typedef struct elf64_hdr {
255 unsigned char e_ident[16]; /* ELF "magic number" */
257 Elf64_Half e_machine;
258 Elf64_Word e_version;
259 Elf64_Addr e_entry; /* Entry point virtual address */
260 Elf64_Off e_phoff; /* Program header table file offset */
261 Elf64_Off e_shoff; /* Section header table file offset */
264 Elf64_Half e_phentsize;
266 Elf64_Half e_shentsize;
268 Elf64_Half e_shstrndx;
271 /* These constants define the permissions on sections in the program
277 typedef struct elf32_phdr{
288 typedef struct elf64_phdr {
291 Elf64_Off p_offset; /* Segment file offset */
292 Elf64_Addr p_vaddr; /* Segment virtual address */
293 Elf64_Addr p_paddr; /* Segment physical address */
294 Elf64_Xword p_filesz; /* Segment size in file */
295 Elf64_Xword p_memsz; /* Segment size in memory */
296 Elf64_Xword p_align; /* Segment alignment, file & memory */
301 #define SHT_PROGBITS 1
306 #define SHT_DYNAMIC 6
311 #define SHT_DYNSYM 11
313 #define SHT_LOPROC 0x70000000
314 #define SHT_HIPROC 0x7fffffff
315 #define SHT_LOUSER 0x80000000
316 #define SHT_HIUSER 0xffffffff
319 #define SHF_WRITE 0x1
320 #define SHF_ALLOC 0x2
321 #define SHF_EXECINSTR 0x4
322 #define SHF_MASKPROC 0xf0000000
324 /* special section indexes */
326 #define SHN_LORESERVE 0xff00
327 #define SHN_LOPROC 0xff00
328 #define SHN_HIPROC 0xff1f
329 #define SHN_ABS 0xfff1
330 #define SHN_COMMON 0xfff2
331 #define SHN_HIRESERVE 0xffff
342 Elf32_Word sh_addralign;
343 Elf32_Word sh_entsize;
346 typedef struct elf64_shdr {
347 Elf64_Word sh_name; /* Section name, index in string tbl */
348 Elf64_Word sh_type; /* Type of section */
349 Elf64_Xword sh_flags; /* Miscellaneous section attributes */
350 Elf64_Addr sh_addr; /* Section virtual addr at execution */
351 Elf64_Off sh_offset; /* Section file offset */
352 Elf64_Xword sh_size; /* Size of section in bytes */
353 Elf64_Word sh_link; /* Index of another section */
354 Elf64_Word sh_info; /* Additional section information */
355 Elf64_Xword sh_addralign; /* Section alignment */
356 Elf64_Xword sh_entsize; /* Entry size if section holds table */
359 #define EI_MAG0 0 /* e_ident[] indexes */
369 #define ELFMAG0 0x7f /* EI_MAG */
373 #define ELFMAG "\177ELF"
376 #define ELFCLASSNONE 0 /* EI_CLASS */
379 #define ELFCLASSNUM 3
381 #define ELFDATANONE 0 /* e_ident[EI_DATA] */
382 #define ELFDATA2LSB 1
383 #define ELFDATA2MSB 2
385 #define EV_NONE 0 /* e_version, EI_VERSION */
389 #define ELFOSABI_NONE 0
390 #define ELFOSABI_LINUX 3
393 #define ELF_OSABI ELFOSABI_NONE
396 /* Notes used in ET_CORE */
397 #define NT_PRSTATUS 1
399 #define NT_PRPSINFO 3
400 #define NT_TASKSTRUCT 4
402 #define NT_PRXFPREG 0x46e62b7f /* copied from gdb5.1/include/elf/common.h */
405 /* Note header in a PT_NOTE section */
406 typedef struct elf32_note {
407 Elf32_Word n_namesz; /* Name size */
408 Elf32_Word n_descsz; /* Content size */
409 Elf32_Word n_type; /* Content type */
412 /* Note header in a PT_NOTE section */
413 typedef struct elf64_note {
414 Elf64_Word n_namesz; /* Name size */
415 Elf64_Word n_descsz; /* Content size */
416 Elf64_Word n_type; /* Content type */
419 #if ELF_CLASS == ELFCLASS32
421 extern Elf32_Dyn _DYNAMIC [];
422 #define elfhdr elf32_hdr
423 #define elf_phdr elf32_phdr
424 #define elf_note elf32_note
428 extern Elf64_Dyn _DYNAMIC [];
429 #define elfhdr elf64_hdr
430 #define elf_phdr elf64_phdr
431 #define elf_note elf64_note
436 #endif /* _LINUX_ELF_H */