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Linux 3.15-rc1
[linux/fpc-iii.git] / arch / mips / include / asm / elf.h
blobd4144056e9287c2a840450cebb19774380fc404c
1 /*
2 * This file is subject to the terms and conditions of the GNU General Public
3 * License. See the file "COPYING" in the main directory of this archive
4 * for more details.
5 *
6 * Much of this is taken from binutils and GNU libc ...
7 */
8 #ifndef _ASM_ELF_H
9 #define _ASM_ELF_H
10
11
12 /* ELF header e_flags defines. */
13 /* MIPS architecture level. */
14 #define EF_MIPS_ARCH_1 0x00000000 /* -mips1 code. */
15 #define EF_MIPS_ARCH_2 0x10000000 /* -mips2 code. */
16 #define EF_MIPS_ARCH_3 0x20000000 /* -mips3 code. */
17 #define EF_MIPS_ARCH_4 0x30000000 /* -mips4 code. */
18 #define EF_MIPS_ARCH_5 0x40000000 /* -mips5 code. */
19 #define EF_MIPS_ARCH_32 0x50000000 /* MIPS32 code. */
20 #define EF_MIPS_ARCH_64 0x60000000 /* MIPS64 code. */
21 #define EF_MIPS_ARCH_32R2 0x70000000 /* MIPS32 R2 code. */
22 #define EF_MIPS_ARCH_64R2 0x80000000 /* MIPS64 R2 code. */
23
24 /* The ABI of a file. */
25 #define EF_MIPS_ABI_O32 0x00001000 /* O32 ABI. */
26 #define EF_MIPS_ABI_O64 0x00002000 /* O32 extended for 64 bit. */
27
28 #define PT_MIPS_REGINFO 0x70000000
29 #define PT_MIPS_RTPROC 0x70000001
30 #define PT_MIPS_OPTIONS 0x70000002
31
32 /* Flags in the e_flags field of the header */
33 #define EF_MIPS_NOREORDER 0x00000001
34 #define EF_MIPS_PIC 0x00000002
35 #define EF_MIPS_CPIC 0x00000004
36 #define EF_MIPS_ABI2 0x00000020
37 #define EF_MIPS_OPTIONS_FIRST 0x00000080
38 #define EF_MIPS_32BITMODE 0x00000100
39 #define EF_MIPS_FP64 0x00000200
40 #define EF_MIPS_ABI 0x0000f000
41 #define EF_MIPS_ARCH 0xf0000000
42
43 #define DT_MIPS_RLD_VERSION 0x70000001
44 #define DT_MIPS_TIME_STAMP 0x70000002
45 #define DT_MIPS_ICHECKSUM 0x70000003
46 #define DT_MIPS_IVERSION 0x70000004
47 #define DT_MIPS_FLAGS 0x70000005
48 #define RHF_NONE 0x00000000
49 #define RHF_HARDWAY 0x00000001
50 #define RHF_NOTPOT 0x00000002
51 #define RHF_SGI_ONLY 0x00000010
52 #define DT_MIPS_BASE_ADDRESS 0x70000006
53 #define DT_MIPS_CONFLICT 0x70000008
54 #define DT_MIPS_LIBLIST 0x70000009
55 #define DT_MIPS_LOCAL_GOTNO 0x7000000a
56 #define DT_MIPS_CONFLICTNO 0x7000000b
57 #define DT_MIPS_LIBLISTNO 0x70000010
58 #define DT_MIPS_SYMTABNO 0x70000011
59 #define DT_MIPS_UNREFEXTNO 0x70000012
60 #define DT_MIPS_GOTSYM 0x70000013
61 #define DT_MIPS_HIPAGENO 0x70000014
62 #define DT_MIPS_RLD_MAP 0x70000016
63
64 #define R_MIPS_NONE 0
65 #define R_MIPS_16 1
66 #define R_MIPS_32 2
67 #define R_MIPS_REL32 3
68 #define R_MIPS_26 4
69 #define R_MIPS_HI16 5
70 #define R_MIPS_LO16 6
71 #define R_MIPS_GPREL16 7
72 #define R_MIPS_LITERAL 8
73 #define R_MIPS_GOT16 9
74 #define R_MIPS_PC16 10
75 #define R_MIPS_CALL16 11
76 #define R_MIPS_GPREL32 12
77 /* The remaining relocs are defined on Irix, although they are not
78 in the MIPS ELF ABI. */
79 #define R_MIPS_UNUSED1 13
80 #define R_MIPS_UNUSED2 14
81 #define R_MIPS_UNUSED3 15
82 #define R_MIPS_SHIFT5 16
83 #define R_MIPS_SHIFT6 17
84 #define R_MIPS_64 18
85 #define R_MIPS_GOT_DISP 19
86 #define R_MIPS_GOT_PAGE 20
87 #define R_MIPS_GOT_OFST 21
88 /*
89 * The following two relocation types are specified in the MIPS ABI
90 * conformance guide version 1.2 but not yet in the psABI.
91 */
92 #define R_MIPS_GOTHI16 22
93 #define R_MIPS_GOTLO16 23
94 #define R_MIPS_SUB 24
95 #define R_MIPS_INSERT_A 25
96 #define R_MIPS_INSERT_B 26
97 #define R_MIPS_DELETE 27
98 #define R_MIPS_HIGHER 28
99 #define R_MIPS_HIGHEST 29
100 /*
101 * The following two relocation types are specified in the MIPS ABI
102 * conformance guide version 1.2 but not yet in the psABI.
103 */
104 #define R_MIPS_CALLHI16 30
105 #define R_MIPS_CALLLO16 31
106 /*
107 * This range is reserved for vendor specific relocations.
108 */
109 #define R_MIPS_LOVENDOR 100
110 #define R_MIPS_HIVENDOR 127
111
112 #define SHN_MIPS_ACCOMON 0xff00 /* Allocated common symbols */
113 #define SHN_MIPS_TEXT 0xff01 /* Allocated test symbols. */
114 #define SHN_MIPS_DATA 0xff02 /* Allocated data symbols. */
115 #define SHN_MIPS_SCOMMON 0xff03 /* Small common symbols */
116 #define SHN_MIPS_SUNDEFINED 0xff04 /* Small undefined symbols */
117
118 #define SHT_MIPS_LIST 0x70000000
119 #define SHT_MIPS_CONFLICT 0x70000002
120 #define SHT_MIPS_GPTAB 0x70000003
121 #define SHT_MIPS_UCODE 0x70000004
122 #define SHT_MIPS_DEBUG 0x70000005
123 #define SHT_MIPS_REGINFO 0x70000006
124 #define SHT_MIPS_PACKAGE 0x70000007
125 #define SHT_MIPS_PACKSYM 0x70000008
126 #define SHT_MIPS_RELD 0x70000009
127 #define SHT_MIPS_IFACE 0x7000000b
128 #define SHT_MIPS_CONTENT 0x7000000c
129 #define SHT_MIPS_OPTIONS 0x7000000d
130 #define SHT_MIPS_SHDR 0x70000010
131 #define SHT_MIPS_FDESC 0x70000011
132 #define SHT_MIPS_EXTSYM 0x70000012
133 #define SHT_MIPS_DENSE 0x70000013
134 #define SHT_MIPS_PDESC 0x70000014
135 #define SHT_MIPS_LOCSYM 0x70000015
136 #define SHT_MIPS_AUXSYM 0x70000016
137 #define SHT_MIPS_OPTSYM 0x70000017
138 #define SHT_MIPS_LOCSTR 0x70000018
139 #define SHT_MIPS_LINE 0x70000019
140 #define SHT_MIPS_RFDESC 0x7000001a
141 #define SHT_MIPS_DELTASYM 0x7000001b
142 #define SHT_MIPS_DELTAINST 0x7000001c
143 #define SHT_MIPS_DELTACLASS 0x7000001d
144 #define SHT_MIPS_DWARF 0x7000001e
145 #define SHT_MIPS_DELTADECL 0x7000001f
146 #define SHT_MIPS_SYMBOL_LIB 0x70000020
147 #define SHT_MIPS_EVENTS 0x70000021
148 #define SHT_MIPS_TRANSLATE 0x70000022
149 #define SHT_MIPS_PIXIE 0x70000023
150 #define SHT_MIPS_XLATE 0x70000024
151 #define SHT_MIPS_XLATE_DEBUG 0x70000025
152 #define SHT_MIPS_WHIRL 0x70000026
153 #define SHT_MIPS_EH_REGION 0x70000027
154 #define SHT_MIPS_XLATE_OLD 0x70000028
155 #define SHT_MIPS_PDR_EXCEPTION 0x70000029
156
157 #define SHF_MIPS_GPREL 0x10000000
158 #define SHF_MIPS_MERGE 0x20000000
159 #define SHF_MIPS_ADDR 0x40000000
160 #define SHF_MIPS_STRING 0x80000000
161 #define SHF_MIPS_NOSTRIP 0x08000000
162 #define SHF_MIPS_LOCAL 0x04000000
163 #define SHF_MIPS_NAMES 0x02000000
164 #define SHF_MIPS_NODUPES 0x01000000
165
166 #ifndef ELF_ARCH
167 /* ELF register definitions */
168 #define ELF_NGREG 45
169 #define ELF_NFPREG 33
170
171 typedef unsigned long elf_greg_t;
172 typedef elf_greg_t elf_gregset_t[ELF_NGREG];
173
174 typedef double elf_fpreg_t;
175 typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG];
176
177 #ifdef CONFIG_32BIT
178
179 /*
180 * In order to be sure that we don't attempt to execute an O32 binary which
181 * requires 64 bit FP (FR=1) on a system which does not support it we refuse
182 * to execute any binary which has bits specified by the following macro set
183 * in its ELF header flags.
184 */
185 #ifdef CONFIG_MIPS_O32_FP64_SUPPORT
186 # define __MIPS_O32_FP64_MUST_BE_ZERO 0
187 #else
188 # define __MIPS_O32_FP64_MUST_BE_ZERO EF_MIPS_FP64
189 #endif
190
191 /*
192 * This is used to ensure we don't load something for the wrong architecture.
193 */
194 #define elf_check_arch(hdr) \
195 ({ \
196 int __res = 1; \
197 struct elfhdr *__h = (hdr); \
198 \
199 if (__h->e_machine != EM_MIPS) \
200 __res = 0; \
201 if (__h->e_ident[EI_CLASS] != ELFCLASS32) \
202 __res = 0; \
203 if ((__h->e_flags & EF_MIPS_ABI2) != 0) \
204 __res = 0; \
205 if (((__h->e_flags & EF_MIPS_ABI) != 0) && \
206 ((__h->e_flags & EF_MIPS_ABI) != EF_MIPS_ABI_O32)) \
207 __res = 0; \
208 if (__h->e_flags & __MIPS_O32_FP64_MUST_BE_ZERO) \
209 __res = 0; \
210 \
211 __res; \
212 })
213
214 /*
215 * These are used to set parameters in the core dumps.
216 */
217 #define ELF_CLASS ELFCLASS32
218
219 #endif /* CONFIG_32BIT */
220
221 #ifdef CONFIG_64BIT
222 /*
223 * This is used to ensure we don't load something for the wrong architecture.
224 */
225 #define elf_check_arch(hdr) \
226 ({ \
227 int __res = 1; \
228 struct elfhdr *__h = (hdr); \
229 \
230 if (__h->e_machine != EM_MIPS) \
231 __res = 0; \
232 if (__h->e_ident[EI_CLASS] != ELFCLASS64) \
233 __res = 0; \
234 \
235 __res; \
236 })
237
238 /*
239 * These are used to set parameters in the core dumps.
240 */
241 #define ELF_CLASS ELFCLASS64
242
243 #endif /* CONFIG_64BIT */
244
245 /*
246 * These are used to set parameters in the core dumps.
247 */
248 #ifdef __MIPSEB__
249 #define ELF_DATA ELFDATA2MSB
250 #elif defined(__MIPSEL__)
251 #define ELF_DATA ELFDATA2LSB
252 #endif
253 #define ELF_ARCH EM_MIPS
254
255 #endif /* !defined(ELF_ARCH) */
256
257 struct mips_abi;
258
259 extern struct mips_abi mips_abi;
260 extern struct mips_abi mips_abi_32;
261 extern struct mips_abi mips_abi_n32;
262
263 #ifdef CONFIG_32BIT
264
265 #define SET_PERSONALITY(ex) \
266 do { \
267 if ((ex).e_flags & EF_MIPS_FP64) \
268 clear_thread_flag(TIF_32BIT_FPREGS); \
269 else \
270 set_thread_flag(TIF_32BIT_FPREGS); \
271 \
272 if (personality(current->personality) != PER_LINUX) \
273 set_personality(PER_LINUX); \
274 \
275 current->thread.abi = &mips_abi; \
276 } while (0)
277
278 #endif /* CONFIG_32BIT */
279
280 #ifdef CONFIG_64BIT
281
282 #ifdef CONFIG_MIPS32_N32
283 #define __SET_PERSONALITY32_N32() \
284 do { \
285 set_thread_flag(TIF_32BIT_ADDR); \
286 current->thread.abi = &mips_abi_n32; \
287 } while (0)
288 #else
289 #define __SET_PERSONALITY32_N32() \
290 do { } while (0)
291 #endif
292
293 #ifdef CONFIG_MIPS32_O32
294 #define __SET_PERSONALITY32_O32(ex) \
295 do { \
296 set_thread_flag(TIF_32BIT_REGS); \
297 set_thread_flag(TIF_32BIT_ADDR); \
298 \
299 if (!((ex).e_flags & EF_MIPS_FP64)) \
300 set_thread_flag(TIF_32BIT_FPREGS); \
301 \
302 current->thread.abi = &mips_abi_32; \
303 } while (0)
304 #else
305 #define __SET_PERSONALITY32_O32(ex) \
306 do { } while (0)
307 #endif
308
309 #ifdef CONFIG_MIPS32_COMPAT
310 #define __SET_PERSONALITY32(ex) \
311 do { \
312 if ((((ex).e_flags & EF_MIPS_ABI2) != 0) && \
313 ((ex).e_flags & EF_MIPS_ABI) == 0) \
314 __SET_PERSONALITY32_N32(); \
315 else \
316 __SET_PERSONALITY32_O32(ex); \
317 } while (0)
318 #else
319 #define __SET_PERSONALITY32(ex) do { } while (0)
320 #endif
321
322 #define SET_PERSONALITY(ex) \
323 do { \
324 unsigned int p; \
325 \
326 clear_thread_flag(TIF_32BIT_REGS); \
327 clear_thread_flag(TIF_32BIT_FPREGS); \
328 clear_thread_flag(TIF_32BIT_ADDR); \
329 \
330 if ((ex).e_ident[EI_CLASS] == ELFCLASS32) \
331 __SET_PERSONALITY32(ex); \
332 else \
333 current->thread.abi = &mips_abi; \
334 \
335 p = personality(current->personality); \
336 if (p != PER_LINUX32 && p != PER_LINUX) \
337 set_personality(PER_LINUX); \
338 } while (0)
339
340 #endif /* CONFIG_64BIT */
341
342 struct pt_regs;
343 struct task_struct;
344
345 extern void elf_dump_regs(elf_greg_t *, struct pt_regs *regs);
346 extern int dump_task_regs(struct task_struct *, elf_gregset_t *);
347 extern int dump_task_fpu(struct task_struct *, elf_fpregset_t *);
348
349 #ifndef ELF_CORE_COPY_REGS
350 #define ELF_CORE_COPY_REGS(elf_regs, regs) \
351 elf_dump_regs((elf_greg_t *)&(elf_regs), regs);
352 #endif
353 #ifndef ELF_CORE_COPY_TASK_REGS
354 #define ELF_CORE_COPY_TASK_REGS(tsk, elf_regs) dump_task_regs(tsk, elf_regs)
355 #endif
356 #define ELF_CORE_COPY_FPREGS(tsk, elf_fpregs) \
357 dump_task_fpu(tsk, elf_fpregs)
358
359 #define CORE_DUMP_USE_REGSET
360 #define ELF_EXEC_PAGESIZE PAGE_SIZE
361
362 /* This yields a mask that user programs can use to figure out what
363 instruction set this cpu supports. This could be done in userspace,
364 but it's not easy, and we've already done it here. */
365
366 #define ELF_HWCAP (0)
367
368 /*
369 * This yields a string that ld.so will use to load implementation
370 * specific libraries for optimization. This is more specific in
371 * intent than poking at uname or /proc/cpuinfo.
372 */
373
374 #define ELF_PLATFORM __elf_platform
375 extern const char *__elf_platform;
376
377 /*
378 * See comments in asm-alpha/elf.h, this is the same thing
379 * on the MIPS.
380 */
381 #define ELF_PLAT_INIT(_r, load_addr) do { \
382 _r->regs[1] = _r->regs[2] = _r->regs[3] = _r->regs[4] = 0; \
383 _r->regs[5] = _r->regs[6] = _r->regs[7] = _r->regs[8] = 0; \
384 _r->regs[9] = _r->regs[10] = _r->regs[11] = _r->regs[12] = 0; \
385 _r->regs[13] = _r->regs[14] = _r->regs[15] = _r->regs[16] = 0; \
386 _r->regs[17] = _r->regs[18] = _r->regs[19] = _r->regs[20] = 0; \
387 _r->regs[21] = _r->regs[22] = _r->regs[23] = _r->regs[24] = 0; \
388 _r->regs[25] = _r->regs[26] = _r->regs[27] = _r->regs[28] = 0; \
389 _r->regs[30] = _r->regs[31] = 0; \
390 } while (0)
391
392 /* This is the location that an ET_DYN program is loaded if exec'ed. Typical
393 use of this is to invoke "./ld.so someprog" to test out a new version of
394 the loader. We need to make sure that it is out of the way of the program
395 that it will "exec", and that there is sufficient room for the brk. */
396
397 #ifndef ELF_ET_DYN_BASE
398 #define ELF_ET_DYN_BASE (TASK_SIZE / 3 * 2)
399 #endif
400
401 #define ARCH_HAS_SETUP_ADDITIONAL_PAGES 1
402 struct linux_binprm;
403 extern int arch_setup_additional_pages(struct linux_binprm *bprm,
404 int uses_interp);
405
406 struct mm_struct;
407 extern unsigned long arch_randomize_brk(struct mm_struct *mm);
408 #define arch_randomize_brk arch_randomize_brk
409
410 #endif /* _ASM_ELF_H */
Linux with added FPC-III support