4 #include <linux/types.h>
5 #include <linux/elf-em.h>
12 #ifndef elf_read_implies_exec
13 /* Executables for which elf_read_implies_exec() returns TRUE will
14 have the READ_IMPLIES_EXEC personality flag set automatically.
15 Override in asm/elf.h as needed. */
16 # define elf_read_implies_exec(ex, have_pt_gnu_stack) 0
19 /* 32-bit ELF base types. */
20 typedef __u32 Elf32_Addr
;
21 typedef __u16 Elf32_Half
;
22 typedef __u32 Elf32_Off
;
23 typedef __s32 Elf32_Sword
;
24 typedef __u32 Elf32_Word
;
26 /* 64-bit ELF base types. */
27 typedef __u64 Elf64_Addr
;
28 typedef __u16 Elf64_Half
;
29 typedef __s16 Elf64_SHalf
;
30 typedef __u64 Elf64_Off
;
31 typedef __s32 Elf64_Sword
;
32 typedef __u32 Elf64_Word
;
33 typedef __u64 Elf64_Xword
;
34 typedef __s64 Elf64_Sxword
;
36 /* These constants are for the segment types stored in the image headers */
44 #define PT_TLS 7 /* Thread local storage segment */
45 #define PT_LOOS 0x60000000 /* OS-specific */
46 #define PT_HIOS 0x6fffffff /* OS-specific */
47 #define PT_LOPROC 0x70000000
48 #define PT_HIPROC 0x7fffffff
49 #define PT_GNU_EH_FRAME 0x6474e550
51 #define PT_GNU_STACK (PT_LOOS + 0x474e551)
56 * If the real number of program header table entries is larger than
57 * or equal to PN_XNUM(0xffff), it is set to sh_info field of the
58 * section header at index 0, and PN_XNUM is set to e_phnum
59 * field. Otherwise, the section header at index 0 is zero
60 * initialized, if it exists.
62 * Specifications are available in:
64 * - Sun microsystems: Linker and Libraries.
65 * Part No: 817-1984-17, September 2008.
66 * URL: http://docs.sun.com/app/docs/doc/817-1984
68 * - System V ABI AMD64 Architecture Processor Supplement
69 * Draft Version 0.99.,
71 * URL: http://www.x86-64.org/
73 #define PN_XNUM 0xffff
75 /* These constants define the different elf file types */
81 #define ET_LOPROC 0xff00
82 #define ET_HIPROC 0xffff
84 /* This is the info that is needed to parse the dynamic section of the file */
101 #define DT_SYMBOLIC 16
107 #define DT_TEXTREL 22
109 #define DT_ENCODING 32
110 #define OLD_DT_LOOS 0x60000000
111 #define DT_LOOS 0x6000000d
112 #define DT_HIOS 0x6ffff000
113 #define DT_VALRNGLO 0x6ffffd00
114 #define DT_VALRNGHI 0x6ffffdff
115 #define DT_ADDRRNGLO 0x6ffffe00
116 #define DT_ADDRRNGHI 0x6ffffeff
117 #define DT_VERSYM 0x6ffffff0
118 #define DT_RELACOUNT 0x6ffffff9
119 #define DT_RELCOUNT 0x6ffffffa
120 #define DT_FLAGS_1 0x6ffffffb
121 #define DT_VERDEF 0x6ffffffc
122 #define DT_VERDEFNUM 0x6ffffffd
123 #define DT_VERNEED 0x6ffffffe
124 #define DT_VERNEEDNUM 0x6fffffff
125 #define OLD_DT_HIOS 0x6fffffff
126 #define DT_LOPROC 0x70000000
127 #define DT_HIPROC 0x7fffffff
129 /* This info is needed when parsing the symbol table */
137 #define STT_SECTION 3
142 #define ELF_ST_BIND(x) ((x) >> 4)
143 #define ELF_ST_TYPE(x) (((unsigned int) x) & 0xf)
144 #define ELF32_ST_BIND(x) ELF_ST_BIND(x)
145 #define ELF32_ST_TYPE(x) ELF_ST_TYPE(x)
146 #define ELF64_ST_BIND(x) ELF_ST_BIND(x)
147 #define ELF64_ST_TYPE(x) ELF_ST_TYPE(x)
149 typedef struct dynamic
{
158 Elf64_Sxword d_tag
; /* entry tag value */
165 /* The following are used with relocations */
166 #define ELF32_R_SYM(x) ((x) >> 8)
167 #define ELF32_R_TYPE(x) ((x) & 0xff)
169 #define ELF64_R_SYM(i) ((i) >> 32)
170 #define ELF64_R_TYPE(i) ((i) & 0xffffffff)
172 typedef struct elf32_rel
{
177 typedef struct elf64_rel
{
178 Elf64_Addr r_offset
; /* Location at which to apply the action */
179 Elf64_Xword r_info
; /* index and type of relocation */
182 typedef struct elf32_rela
{
185 Elf32_Sword r_addend
;
188 typedef struct elf64_rela
{
189 Elf64_Addr r_offset
; /* Location at which to apply the action */
190 Elf64_Xword r_info
; /* index and type of relocation */
191 Elf64_Sxword r_addend
; /* Constant addend used to compute value */
194 typedef struct elf32_sym
{
198 unsigned char st_info
;
199 unsigned char st_other
;
203 typedef struct elf64_sym
{
204 Elf64_Word st_name
; /* Symbol name, index in string tbl */
205 unsigned char st_info
; /* Type and binding attributes */
206 unsigned char st_other
; /* No defined meaning, 0 */
207 Elf64_Half st_shndx
; /* Associated section index */
208 Elf64_Addr st_value
; /* Value of the symbol */
209 Elf64_Xword st_size
; /* Associated symbol size */
215 typedef struct elf32_hdr
{
216 unsigned char e_ident
[EI_NIDENT
];
218 Elf32_Half e_machine
;
219 Elf32_Word e_version
;
220 Elf32_Addr e_entry
; /* Entry point */
225 Elf32_Half e_phentsize
;
227 Elf32_Half e_shentsize
;
229 Elf32_Half e_shstrndx
;
232 typedef struct elf64_hdr
{
233 unsigned char e_ident
[EI_NIDENT
]; /* ELF "magic number" */
235 Elf64_Half e_machine
;
236 Elf64_Word e_version
;
237 Elf64_Addr e_entry
; /* Entry point virtual address */
238 Elf64_Off e_phoff
; /* Program header table file offset */
239 Elf64_Off e_shoff
; /* Section header table file offset */
242 Elf64_Half e_phentsize
;
244 Elf64_Half e_shentsize
;
246 Elf64_Half e_shstrndx
;
249 /* These constants define the permissions on sections in the program
255 typedef struct elf32_phdr
{
266 typedef struct elf64_phdr
{
269 Elf64_Off p_offset
; /* Segment file offset */
270 Elf64_Addr p_vaddr
; /* Segment virtual address */
271 Elf64_Addr p_paddr
; /* Segment physical address */
272 Elf64_Xword p_filesz
; /* Segment size in file */
273 Elf64_Xword p_memsz
; /* Segment size in memory */
274 Elf64_Xword p_align
; /* Segment alignment, file & memory */
279 #define SHT_PROGBITS 1
284 #define SHT_DYNAMIC 6
289 #define SHT_DYNSYM 11
291 #define SHT_LOPROC 0x70000000
292 #define SHT_HIPROC 0x7fffffff
293 #define SHT_LOUSER 0x80000000
294 #define SHT_HIUSER 0xffffffff
297 #define SHF_WRITE 0x1
298 #define SHF_ALLOC 0x2
299 #define SHF_EXECINSTR 0x4
300 #define SHF_MASKPROC 0xf0000000
302 /* special section indexes */
304 #define SHN_LORESERVE 0xff00
305 #define SHN_LOPROC 0xff00
306 #define SHN_HIPROC 0xff1f
307 #define SHN_ABS 0xfff1
308 #define SHN_COMMON 0xfff2
309 #define SHN_HIRESERVE 0xffff
311 typedef struct elf32_shdr
{
320 Elf32_Word sh_addralign
;
321 Elf32_Word sh_entsize
;
324 typedef struct elf64_shdr
{
325 Elf64_Word sh_name
; /* Section name, index in string tbl */
326 Elf64_Word sh_type
; /* Type of section */
327 Elf64_Xword sh_flags
; /* Miscellaneous section attributes */
328 Elf64_Addr sh_addr
; /* Section virtual addr at execution */
329 Elf64_Off sh_offset
; /* Section file offset */
330 Elf64_Xword sh_size
; /* Size of section in bytes */
331 Elf64_Word sh_link
; /* Index of another section */
332 Elf64_Word sh_info
; /* Additional section information */
333 Elf64_Xword sh_addralign
; /* Section alignment */
334 Elf64_Xword sh_entsize
; /* Entry size if section holds table */
337 #define EI_MAG0 0 /* e_ident[] indexes */
347 #define ELFMAG0 0x7f /* EI_MAG */
351 #define ELFMAG "\177ELF"
354 #define ELFCLASSNONE 0 /* EI_CLASS */
357 #define ELFCLASSNUM 3
359 #define ELFDATANONE 0 /* e_ident[EI_DATA] */
360 #define ELFDATA2LSB 1
361 #define ELFDATA2MSB 2
363 #define EV_NONE 0 /* e_version, EI_VERSION */
367 #define ELFOSABI_NONE 0
368 #define ELFOSABI_LINUX 3
371 #define ELF_OSABI ELFOSABI_NONE
375 * Notes used in ET_CORE. Architectures export some of the arch register sets
376 * using the corresponding note types via the PTRACE_GETREGSET and
377 * PTRACE_SETREGSET requests.
379 #define NT_PRSTATUS 1
381 #define NT_PRPSINFO 3
382 #define NT_TASKSTRUCT 4
384 #define NT_PRXFPREG 0x46e62b7f /* copied from gdb5.1/include/elf/common.h */
385 #define NT_PPC_VMX 0x100 /* PowerPC Altivec/VMX registers */
386 #define NT_PPC_SPE 0x101 /* PowerPC SPE/EVR registers */
387 #define NT_PPC_VSX 0x102 /* PowerPC VSX registers */
388 #define NT_386_TLS 0x200 /* i386 TLS slots (struct user_desc) */
389 #define NT_386_IOPERM 0x201 /* x86 io permission bitmap (1=deny) */
390 #define NT_X86_XSTATE 0x202 /* x86 extended state using xsave */
391 #define NT_S390_HIGH_GPRS 0x300 /* s390 upper register halves */
392 #define NT_S390_TIMER 0x301 /* s390 timer register */
393 #define NT_S390_TODCMP 0x302 /* s390 TOD clock comparator register */
394 #define NT_S390_TODPREG 0x303 /* s390 TOD programmable register */
395 #define NT_S390_CTRS 0x304 /* s390 control registers */
396 #define NT_S390_PREFIX 0x305 /* s390 prefix register */
397 #define NT_S390_LAST_BREAK 0x306 /* s390 breaking event address */
398 #define NT_S390_SYSTEM_CALL 0x307 /* s390 system call restart data */
399 #define NT_ARM_VFP 0x400 /* ARM VFP/NEON registers */
402 /* Note header in a PT_NOTE section */
403 typedef struct elf32_note
{
404 Elf32_Word n_namesz
; /* Name size */
405 Elf32_Word n_descsz
; /* Content size */
406 Elf32_Word n_type
; /* Content type */
409 /* Note header in a PT_NOTE section */
410 typedef struct elf64_note
{
411 Elf64_Word n_namesz
; /* Name size */
412 Elf64_Word n_descsz
; /* Content size */
413 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_shdr elf32_shdr
423 #define elf_note elf32_note
424 #define elf_addr_t Elf32_Off
425 #define Elf_Half Elf32_Half
429 extern Elf64_Dyn _DYNAMIC
[];
430 #define elfhdr elf64_hdr
431 #define elf_phdr elf64_phdr
432 #define elf_shdr elf64_shdr
433 #define elf_note elf64_note
434 #define elf_addr_t Elf64_Off
435 #define Elf_Half Elf64_Half
439 /* Optional callbacks to write extra ELF notes. */
440 #ifndef ARCH_HAVE_EXTRA_ELF_NOTES
441 static inline int elf_coredump_extra_notes_size(void) { return 0; }
442 static inline int elf_coredump_extra_notes_write(struct file
*file
,
443 loff_t
*foffset
) { return 0; }
445 extern int elf_coredump_extra_notes_size(void);
446 extern int elf_coredump_extra_notes_write(struct file
*file
, loff_t
*foffset
);
448 #endif /* __KERNEL__ */
449 #endif /* _LINUX_ELF_H */
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