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)
53 /* These constants define the different elf file types */
59 #define ET_LOPROC 0xff00
60 #define ET_HIPROC 0xffff
62 /* This is the info that is needed to parse the dynamic section of the file */
79 #define DT_SYMBOLIC 16
87 #define DT_ENCODING 32
88 #define OLD_DT_LOOS 0x60000000
89 #define DT_LOOS 0x6000000d
90 #define DT_HIOS 0x6ffff000
91 #define DT_VALRNGLO 0x6ffffd00
92 #define DT_VALRNGHI 0x6ffffdff
93 #define DT_ADDRRNGLO 0x6ffffe00
94 #define DT_ADDRRNGHI 0x6ffffeff
95 #define DT_VERSYM 0x6ffffff0
96 #define DT_RELACOUNT 0x6ffffff9
97 #define DT_RELCOUNT 0x6ffffffa
98 #define DT_FLAGS_1 0x6ffffffb
99 #define DT_VERDEF 0x6ffffffc
100 #define DT_VERDEFNUM 0x6ffffffd
101 #define DT_VERNEED 0x6ffffffe
102 #define DT_VERNEEDNUM 0x6fffffff
103 #define OLD_DT_HIOS 0x6fffffff
104 #define DT_LOPROC 0x70000000
105 #define DT_HIPROC 0x7fffffff
107 /* This info is needed when parsing the symbol table */
115 #define STT_SECTION 3
120 #define ELF_ST_BIND(x) ((x) >> 4)
121 #define ELF_ST_TYPE(x) (((unsigned int) x) & 0xf)
122 #define ELF32_ST_BIND(x) ELF_ST_BIND(x)
123 #define ELF32_ST_TYPE(x) ELF_ST_TYPE(x)
124 #define ELF64_ST_BIND(x) ELF_ST_BIND(x)
125 #define ELF64_ST_TYPE(x) ELF_ST_TYPE(x)
127 typedef struct dynamic
{
136 Elf64_Sxword d_tag
; /* entry tag value */
143 /* The following are used with relocations */
144 #define ELF32_R_SYM(x) ((x) >> 8)
145 #define ELF32_R_TYPE(x) ((x) & 0xff)
147 #define ELF64_R_SYM(i) ((i) >> 32)
148 #define ELF64_R_TYPE(i) ((i) & 0xffffffff)
150 typedef struct elf32_rel
{
155 typedef struct elf64_rel
{
156 Elf64_Addr r_offset
; /* Location at which to apply the action */
157 Elf64_Xword r_info
; /* index and type of relocation */
160 typedef struct elf32_rela
{
163 Elf32_Sword r_addend
;
166 typedef struct elf64_rela
{
167 Elf64_Addr r_offset
; /* Location at which to apply the action */
168 Elf64_Xword r_info
; /* index and type of relocation */
169 Elf64_Sxword r_addend
; /* Constant addend used to compute value */
172 typedef struct elf32_sym
{
176 unsigned char st_info
;
177 unsigned char st_other
;
181 typedef struct elf64_sym
{
182 Elf64_Word st_name
; /* Symbol name, index in string tbl */
183 unsigned char st_info
; /* Type and binding attributes */
184 unsigned char st_other
; /* No defined meaning, 0 */
185 Elf64_Half st_shndx
; /* Associated section index */
186 Elf64_Addr st_value
; /* Value of the symbol */
187 Elf64_Xword st_size
; /* Associated symbol size */
193 typedef struct elf32_hdr
{
194 unsigned char e_ident
[EI_NIDENT
];
196 Elf32_Half e_machine
;
197 Elf32_Word e_version
;
198 Elf32_Addr e_entry
; /* Entry point */
203 Elf32_Half e_phentsize
;
205 Elf32_Half e_shentsize
;
207 Elf32_Half e_shstrndx
;
210 typedef struct elf64_hdr
{
211 unsigned char e_ident
[EI_NIDENT
]; /* ELF "magic number" */
213 Elf64_Half e_machine
;
214 Elf64_Word e_version
;
215 Elf64_Addr e_entry
; /* Entry point virtual address */
216 Elf64_Off e_phoff
; /* Program header table file offset */
217 Elf64_Off e_shoff
; /* Section header table file offset */
220 Elf64_Half e_phentsize
;
222 Elf64_Half e_shentsize
;
224 Elf64_Half e_shstrndx
;
227 /* These constants define the permissions on sections in the program
233 typedef struct elf32_phdr
{
244 typedef struct elf64_phdr
{
247 Elf64_Off p_offset
; /* Segment file offset */
248 Elf64_Addr p_vaddr
; /* Segment virtual address */
249 Elf64_Addr p_paddr
; /* Segment physical address */
250 Elf64_Xword p_filesz
; /* Segment size in file */
251 Elf64_Xword p_memsz
; /* Segment size in memory */
252 Elf64_Xword p_align
; /* Segment alignment, file & memory */
257 #define SHT_PROGBITS 1
262 #define SHT_DYNAMIC 6
267 #define SHT_DYNSYM 11
269 #define SHT_LOPROC 0x70000000
270 #define SHT_HIPROC 0x7fffffff
271 #define SHT_LOUSER 0x80000000
272 #define SHT_HIUSER 0xffffffff
275 #define SHF_WRITE 0x1
276 #define SHF_ALLOC 0x2
277 #define SHF_EXECINSTR 0x4
278 #define SHF_MASKPROC 0xf0000000
280 /* special section indexes */
282 #define SHN_LORESERVE 0xff00
283 #define SHN_LOPROC 0xff00
284 #define SHN_HIPROC 0xff1f
285 #define SHN_ABS 0xfff1
286 #define SHN_COMMON 0xfff2
287 #define SHN_HIRESERVE 0xffff
298 Elf32_Word sh_addralign
;
299 Elf32_Word sh_entsize
;
302 typedef struct elf64_shdr
{
303 Elf64_Word sh_name
; /* Section name, index in string tbl */
304 Elf64_Word sh_type
; /* Type of section */
305 Elf64_Xword sh_flags
; /* Miscellaneous section attributes */
306 Elf64_Addr sh_addr
; /* Section virtual addr at execution */
307 Elf64_Off sh_offset
; /* Section file offset */
308 Elf64_Xword sh_size
; /* Size of section in bytes */
309 Elf64_Word sh_link
; /* Index of another section */
310 Elf64_Word sh_info
; /* Additional section information */
311 Elf64_Xword sh_addralign
; /* Section alignment */
312 Elf64_Xword sh_entsize
; /* Entry size if section holds table */
315 #define EI_MAG0 0 /* e_ident[] indexes */
325 #define ELFMAG0 0x7f /* EI_MAG */
329 #define ELFMAG "\177ELF"
332 #define ELFCLASSNONE 0 /* EI_CLASS */
335 #define ELFCLASSNUM 3
337 #define ELFDATANONE 0 /* e_ident[EI_DATA] */
338 #define ELFDATA2LSB 1
339 #define ELFDATA2MSB 2
341 #define EV_NONE 0 /* e_version, EI_VERSION */
345 #define ELFOSABI_NONE 0
346 #define ELFOSABI_LINUX 3
349 #define ELF_OSABI ELFOSABI_NONE
352 /* Notes used in ET_CORE */
353 #define NT_PRSTATUS 1
355 #define NT_PRPSINFO 3
356 #define NT_TASKSTRUCT 4
358 #define NT_PRXFPREG 0x46e62b7f /* copied from gdb5.1/include/elf/common.h */
359 #define NT_PPC_VMX 0x100 /* PowerPC Altivec/VMX registers */
360 #define NT_PPC_SPE 0x101 /* PowerPC SPE/EVR registers */
361 #define NT_PPC_VSX 0x102 /* PowerPC VSX registers */
362 #define NT_386_TLS 0x200 /* i386 TLS slots (struct user_desc) */
363 #define NT_386_IOPERM 0x201 /* x86 io permission bitmap (1=deny) */
366 /* Note header in a PT_NOTE section */
367 typedef struct elf32_note
{
368 Elf32_Word n_namesz
; /* Name size */
369 Elf32_Word n_descsz
; /* Content size */
370 Elf32_Word n_type
; /* Content type */
373 /* Note header in a PT_NOTE section */
374 typedef struct elf64_note
{
375 Elf64_Word n_namesz
; /* Name size */
376 Elf64_Word n_descsz
; /* Content size */
377 Elf64_Word n_type
; /* Content type */
381 #if ELF_CLASS == ELFCLASS32
383 extern Elf32_Dyn _DYNAMIC
[];
384 #define elfhdr elf32_hdr
385 #define elf_phdr elf32_phdr
386 #define elf_note elf32_note
387 #define elf_addr_t Elf32_Off
391 extern Elf64_Dyn _DYNAMIC
[];
392 #define elfhdr elf64_hdr
393 #define elf_phdr elf64_phdr
394 #define elf_note elf64_note
395 #define elf_addr_t Elf64_Off
399 /* Optional callbacks to write extra ELF notes. */
400 #ifndef ARCH_HAVE_EXTRA_ELF_NOTES
401 static inline int elf_coredump_extra_notes_size(void) { return 0; }
402 static inline int elf_coredump_extra_notes_write(struct file
*file
,
403 loff_t
*foffset
) { return 0; }
405 extern int elf_coredump_extra_notes_size(void);
406 extern int elf_coredump_extra_notes_write(struct file
*file
, loff_t
*foffset
);
408 #endif /* __KERNEL__ */
409 #endif /* _LINUX_ELF_H */
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