4 #include <linux/types.h>
5 #include <linux/elf-em.h>
9 #ifndef elf_read_implies_exec
10 /* Executables for which elf_read_implies_exec() returns TRUE will
11 have the READ_IMPLIES_EXEC personality flag set automatically.
12 Override in asm/elf.h as needed. */
13 # define elf_read_implies_exec(ex, have_pt_gnu_stack) 0
16 /* 32-bit ELF base types. */
17 typedef __u32 Elf32_Addr
;
18 typedef __u16 Elf32_Half
;
19 typedef __u32 Elf32_Off
;
20 typedef __s32 Elf32_Sword
;
21 typedef __u32 Elf32_Word
;
23 /* 64-bit ELF base types. */
24 typedef __u64 Elf64_Addr
;
25 typedef __u16 Elf64_Half
;
26 typedef __s16 Elf64_SHalf
;
27 typedef __u64 Elf64_Off
;
28 typedef __s32 Elf64_Sword
;
29 typedef __u32 Elf64_Word
;
30 typedef __u64 Elf64_Xword
;
31 typedef __s64 Elf64_Sxword
;
33 /* These constants are for the segment types stored in the image headers */
41 #define PT_TLS 7 /* Thread local storage segment */
42 #define PT_LOOS 0x60000000 /* OS-specific */
43 #define PT_HIOS 0x6fffffff /* OS-specific */
44 #define PT_LOPROC 0x70000000
45 #define PT_HIPROC 0x7fffffff
46 #define PT_GNU_EH_FRAME 0x6474e550
48 #define PT_GNU_STACK (PT_LOOS + 0x474e551)
53 * If the real number of program header table entries is larger than
54 * or equal to PN_XNUM(0xffff), it is set to sh_info field of the
55 * section header at index 0, and PN_XNUM is set to e_phnum
56 * field. Otherwise, the section header at index 0 is zero
57 * initialized, if it exists.
59 * Specifications are available in:
61 * - Sun microsystems: Linker and Libraries.
62 * Part No: 817-1984-17, September 2008.
63 * URL: http://docs.sun.com/app/docs/doc/817-1984
65 * - System V ABI AMD64 Architecture Processor Supplement
66 * Draft Version 0.99.,
68 * URL: http://www.x86-64.org/
70 #define PN_XNUM 0xffff
72 /* These constants define the different elf file types */
78 #define ET_LOPROC 0xff00
79 #define ET_HIPROC 0xffff
81 /* This is the info that is needed to parse the dynamic section of the file */
98 #define DT_SYMBOLIC 16
104 #define DT_TEXTREL 22
106 #define DT_ENCODING 32
107 #define OLD_DT_LOOS 0x60000000
108 #define DT_LOOS 0x6000000d
109 #define DT_HIOS 0x6ffff000
110 #define DT_VALRNGLO 0x6ffffd00
111 #define DT_VALRNGHI 0x6ffffdff
112 #define DT_ADDRRNGLO 0x6ffffe00
113 #define DT_ADDRRNGHI 0x6ffffeff
114 #define DT_VERSYM 0x6ffffff0
115 #define DT_RELACOUNT 0x6ffffff9
116 #define DT_RELCOUNT 0x6ffffffa
117 #define DT_FLAGS_1 0x6ffffffb
118 #define DT_VERDEF 0x6ffffffc
119 #define DT_VERDEFNUM 0x6ffffffd
120 #define DT_VERNEED 0x6ffffffe
121 #define DT_VERNEEDNUM 0x6fffffff
122 #define OLD_DT_HIOS 0x6fffffff
123 #define DT_LOPROC 0x70000000
124 #define DT_HIPROC 0x7fffffff
126 /* This info is needed when parsing the symbol table */
134 #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 typedef struct dynamic
{
155 Elf64_Sxword d_tag
; /* entry tag value */
162 /* The following are used with relocations */
163 #define ELF32_R_SYM(x) ((x) >> 8)
164 #define ELF32_R_TYPE(x) ((x) & 0xff)
166 #define ELF64_R_SYM(i) ((i) >> 32)
167 #define ELF64_R_TYPE(i) ((i) & 0xffffffff)
169 typedef struct elf32_rel
{
174 typedef struct elf64_rel
{
175 Elf64_Addr r_offset
; /* Location at which to apply the action */
176 Elf64_Xword r_info
; /* index and type of relocation */
179 typedef struct elf32_rela
{
182 Elf32_Sword r_addend
;
185 typedef struct elf64_rela
{
186 Elf64_Addr r_offset
; /* Location at which to apply the action */
187 Elf64_Xword r_info
; /* index and type of relocation */
188 Elf64_Sxword r_addend
; /* Constant addend used to compute value */
191 typedef struct elf32_sym
{
195 unsigned char st_info
;
196 unsigned char st_other
;
200 typedef struct elf64_sym
{
201 Elf64_Word st_name
; /* Symbol name, index in string tbl */
202 unsigned char st_info
; /* Type and binding attributes */
203 unsigned char st_other
; /* No defined meaning, 0 */
204 Elf64_Half st_shndx
; /* Associated section index */
205 Elf64_Addr st_value
; /* Value of the symbol */
206 Elf64_Xword st_size
; /* Associated symbol size */
212 typedef struct elf32_hdr
{
213 unsigned char e_ident
[EI_NIDENT
];
215 Elf32_Half e_machine
;
216 Elf32_Word e_version
;
217 Elf32_Addr e_entry
; /* Entry point */
222 Elf32_Half e_phentsize
;
224 Elf32_Half e_shentsize
;
226 Elf32_Half e_shstrndx
;
229 typedef struct elf64_hdr
{
230 unsigned char e_ident
[EI_NIDENT
]; /* ELF "magic number" */
232 Elf64_Half e_machine
;
233 Elf64_Word e_version
;
234 Elf64_Addr e_entry
; /* Entry point virtual address */
235 Elf64_Off e_phoff
; /* Program header table file offset */
236 Elf64_Off e_shoff
; /* Section header table file offset */
239 Elf64_Half e_phentsize
;
241 Elf64_Half e_shentsize
;
243 Elf64_Half e_shstrndx
;
246 /* These constants define the permissions on sections in the program
252 typedef struct elf32_phdr
{
263 typedef struct elf64_phdr
{
266 Elf64_Off p_offset
; /* Segment file offset */
267 Elf64_Addr p_vaddr
; /* Segment virtual address */
268 Elf64_Addr p_paddr
; /* Segment physical address */
269 Elf64_Xword p_filesz
; /* Segment size in file */
270 Elf64_Xword p_memsz
; /* Segment size in memory */
271 Elf64_Xword p_align
; /* Segment alignment, file & memory */
276 #define SHT_PROGBITS 1
281 #define SHT_DYNAMIC 6
286 #define SHT_DYNSYM 11
288 #define SHT_LOPROC 0x70000000
289 #define SHT_HIPROC 0x7fffffff
290 #define SHT_LOUSER 0x80000000
291 #define SHT_HIUSER 0xffffffff
294 #define SHF_WRITE 0x1
295 #define SHF_ALLOC 0x2
296 #define SHF_EXECINSTR 0x4
297 #define SHF_MASKPROC 0xf0000000
299 /* special section indexes */
301 #define SHN_LORESERVE 0xff00
302 #define SHN_LOPROC 0xff00
303 #define SHN_HIPROC 0xff1f
304 #define SHN_ABS 0xfff1
305 #define SHN_COMMON 0xfff2
306 #define SHN_HIRESERVE 0xffff
308 typedef struct elf32_shdr
{
317 Elf32_Word sh_addralign
;
318 Elf32_Word sh_entsize
;
321 typedef struct elf64_shdr
{
322 Elf64_Word sh_name
; /* Section name, index in string tbl */
323 Elf64_Word sh_type
; /* Type of section */
324 Elf64_Xword sh_flags
; /* Miscellaneous section attributes */
325 Elf64_Addr sh_addr
; /* Section virtual addr at execution */
326 Elf64_Off sh_offset
; /* Section file offset */
327 Elf64_Xword sh_size
; /* Size of section in bytes */
328 Elf64_Word sh_link
; /* Index of another section */
329 Elf64_Word sh_info
; /* Additional section information */
330 Elf64_Xword sh_addralign
; /* Section alignment */
331 Elf64_Xword sh_entsize
; /* Entry size if section holds table */
334 #define EI_MAG0 0 /* e_ident[] indexes */
344 #define ELFMAG0 0x7f /* EI_MAG */
348 #define ELFMAG "\177ELF"
351 #define ELFCLASSNONE 0 /* EI_CLASS */
354 #define ELFCLASSNUM 3
356 #define ELFDATANONE 0 /* e_ident[EI_DATA] */
357 #define ELFDATA2LSB 1
358 #define ELFDATA2MSB 2
360 #define EV_NONE 0 /* e_version, EI_VERSION */
364 #define ELFOSABI_NONE 0
365 #define ELFOSABI_LINUX 3
368 #define ELF_OSABI ELFOSABI_NONE
372 * Notes used in ET_CORE. Architectures export some of the arch register sets
373 * using the corresponding note types via the PTRACE_GETREGSET and
374 * PTRACE_SETREGSET requests.
376 #define NT_PRSTATUS 1
378 #define NT_PRPSINFO 3
379 #define NT_TASKSTRUCT 4
381 #define NT_PRXFPREG 0x46e62b7f /* copied from gdb5.1/include/elf/common.h */
382 #define NT_PPC_VMX 0x100 /* PowerPC Altivec/VMX registers */
383 #define NT_PPC_SPE 0x101 /* PowerPC SPE/EVR registers */
384 #define NT_PPC_VSX 0x102 /* PowerPC VSX registers */
385 #define NT_386_TLS 0x200 /* i386 TLS slots (struct user_desc) */
386 #define NT_386_IOPERM 0x201 /* x86 io permission bitmap (1=deny) */
387 #define NT_X86_XSTATE 0x202 /* x86 extended state using xsave */
388 #define NT_S390_HIGH_GPRS 0x300 /* s390 upper register halves */
389 #define NT_S390_TIMER 0x301 /* s390 timer register */
390 #define NT_S390_TODCMP 0x302 /* s390 TOD clock comparator register */
391 #define NT_S390_TODPREG 0x303 /* s390 TOD programmable register */
392 #define NT_S390_CTRS 0x304 /* s390 control registers */
393 #define NT_S390_PREFIX 0x305 /* s390 prefix register */
394 #define NT_S390_LAST_BREAK 0x306 /* s390 breaking event address */
397 /* Note header in a PT_NOTE section */
398 typedef struct elf32_note
{
399 Elf32_Word n_namesz
; /* Name size */
400 Elf32_Word n_descsz
; /* Content size */
401 Elf32_Word n_type
; /* Content type */
404 /* Note header in a PT_NOTE section */
405 typedef struct elf64_note
{
406 Elf64_Word n_namesz
; /* Name size */
407 Elf64_Word n_descsz
; /* Content size */
408 Elf64_Word n_type
; /* Content type */
411 #endif /* _LINUX_ELF_H */