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7
8#ifndef _ASM_ELF_H
9#define _ASM_ELF_H
10
11#include <linux/auxvec.h>
12#include <linux/fs.h>
13#include <linux/mm_types.h>
14
15#include <uapi/linux/elf.h>
16
17#include <asm/current.h>
18
19
20
21#define EF_MIPS_ARCH_1 0x00000000
22#define EF_MIPS_ARCH_2 0x10000000
23#define EF_MIPS_ARCH_3 0x20000000
24#define EF_MIPS_ARCH_4 0x30000000
25#define EF_MIPS_ARCH_5 0x40000000
26#define EF_MIPS_ARCH_32 0x50000000
27#define EF_MIPS_ARCH_64 0x60000000
28#define EF_MIPS_ARCH_32R2 0x70000000
29#define EF_MIPS_ARCH_64R2 0x80000000
30
31
32#define EF_MIPS_ABI_O32 0x00001000
33#define EF_MIPS_ABI_O64 0x00002000
34
35#define PT_MIPS_REGINFO 0x70000000
36#define PT_MIPS_RTPROC 0x70000001
37#define PT_MIPS_OPTIONS 0x70000002
38#define PT_MIPS_ABIFLAGS 0x70000003
39
40
41#define EF_MIPS_NOREORDER 0x00000001
42#define EF_MIPS_PIC 0x00000002
43#define EF_MIPS_CPIC 0x00000004
44#define EF_MIPS_ABI2 0x00000020
45#define EF_MIPS_OPTIONS_FIRST 0x00000080
46#define EF_MIPS_32BITMODE 0x00000100
47#define EF_MIPS_FP64 0x00000200
48#define EF_MIPS_NAN2008 0x00000400
49#define EF_MIPS_ABI 0x0000f000
50#define EF_MIPS_ARCH 0xf0000000
51
52#define DT_MIPS_RLD_VERSION 0x70000001
53#define DT_MIPS_TIME_STAMP 0x70000002
54#define DT_MIPS_ICHECKSUM 0x70000003
55#define DT_MIPS_IVERSION 0x70000004
56#define DT_MIPS_FLAGS 0x70000005
57 #define RHF_NONE 0x00000000
58 #define RHF_HARDWAY 0x00000001
59 #define RHF_NOTPOT 0x00000002
60 #define RHF_SGI_ONLY 0x00000010
61#define DT_MIPS_BASE_ADDRESS 0x70000006
62#define DT_MIPS_CONFLICT 0x70000008
63#define DT_MIPS_LIBLIST 0x70000009
64#define DT_MIPS_LOCAL_GOTNO 0x7000000a
65#define DT_MIPS_CONFLICTNO 0x7000000b
66#define DT_MIPS_LIBLISTNO 0x70000010
67#define DT_MIPS_SYMTABNO 0x70000011
68#define DT_MIPS_UNREFEXTNO 0x70000012
69#define DT_MIPS_GOTSYM 0x70000013
70#define DT_MIPS_HIPAGENO 0x70000014
71#define DT_MIPS_RLD_MAP 0x70000016
72
73#define R_MIPS_NONE 0
74#define R_MIPS_16 1
75#define R_MIPS_32 2
76#define R_MIPS_REL32 3
77#define R_MIPS_26 4
78#define R_MIPS_HI16 5
79#define R_MIPS_LO16 6
80#define R_MIPS_GPREL16 7
81#define R_MIPS_LITERAL 8
82#define R_MIPS_GOT16 9
83#define R_MIPS_PC16 10
84#define R_MIPS_CALL16 11
85#define R_MIPS_GPREL32 12
86
87
88#define R_MIPS_UNUSED1 13
89#define R_MIPS_UNUSED2 14
90#define R_MIPS_UNUSED3 15
91#define R_MIPS_SHIFT5 16
92#define R_MIPS_SHIFT6 17
93#define R_MIPS_64 18
94#define R_MIPS_GOT_DISP 19
95#define R_MIPS_GOT_PAGE 20
96#define R_MIPS_GOT_OFST 21
97
98
99
100
101#define R_MIPS_GOTHI16 22
102#define R_MIPS_GOTLO16 23
103#define R_MIPS_SUB 24
104#define R_MIPS_INSERT_A 25
105#define R_MIPS_INSERT_B 26
106#define R_MIPS_DELETE 27
107#define R_MIPS_HIGHER 28
108#define R_MIPS_HIGHEST 29
109
110
111
112
113#define R_MIPS_CALLHI16 30
114#define R_MIPS_CALLLO16 31
115
116
117
118#define R_MIPS_PC21_S2 60
119#define R_MIPS_PC26_S2 61
120
121
122
123#define R_MIPS_LOVENDOR 100
124#define R_MIPS_HIVENDOR 127
125
126#define SHN_MIPS_ACCOMON 0xff00
127#define SHN_MIPS_TEXT 0xff01
128#define SHN_MIPS_DATA 0xff02
129#define SHN_MIPS_SCOMMON 0xff03
130#define SHN_MIPS_SUNDEFINED 0xff04
131
132#define SHT_MIPS_LIST 0x70000000
133#define SHT_MIPS_CONFLICT 0x70000002
134#define SHT_MIPS_GPTAB 0x70000003
135#define SHT_MIPS_UCODE 0x70000004
136#define SHT_MIPS_DEBUG 0x70000005
137#define SHT_MIPS_REGINFO 0x70000006
138#define SHT_MIPS_PACKAGE 0x70000007
139#define SHT_MIPS_PACKSYM 0x70000008
140#define SHT_MIPS_RELD 0x70000009
141#define SHT_MIPS_IFACE 0x7000000b
142#define SHT_MIPS_CONTENT 0x7000000c
143#define SHT_MIPS_OPTIONS 0x7000000d
144#define SHT_MIPS_SHDR 0x70000010
145#define SHT_MIPS_FDESC 0x70000011
146#define SHT_MIPS_EXTSYM 0x70000012
147#define SHT_MIPS_DENSE 0x70000013
148#define SHT_MIPS_PDESC 0x70000014
149#define SHT_MIPS_LOCSYM 0x70000015
150#define SHT_MIPS_AUXSYM 0x70000016
151#define SHT_MIPS_OPTSYM 0x70000017
152#define SHT_MIPS_LOCSTR 0x70000018
153#define SHT_MIPS_LINE 0x70000019
154#define SHT_MIPS_RFDESC 0x7000001a
155#define SHT_MIPS_DELTASYM 0x7000001b
156#define SHT_MIPS_DELTAINST 0x7000001c
157#define SHT_MIPS_DELTACLASS 0x7000001d
158#define SHT_MIPS_DWARF 0x7000001e
159#define SHT_MIPS_DELTADECL 0x7000001f
160#define SHT_MIPS_SYMBOL_LIB 0x70000020
161#define SHT_MIPS_EVENTS 0x70000021
162#define SHT_MIPS_TRANSLATE 0x70000022
163#define SHT_MIPS_PIXIE 0x70000023
164#define SHT_MIPS_XLATE 0x70000024
165#define SHT_MIPS_XLATE_DEBUG 0x70000025
166#define SHT_MIPS_WHIRL 0x70000026
167#define SHT_MIPS_EH_REGION 0x70000027
168#define SHT_MIPS_XLATE_OLD 0x70000028
169#define SHT_MIPS_PDR_EXCEPTION 0x70000029
170
171#define SHF_MIPS_GPREL 0x10000000
172#define SHF_MIPS_MERGE 0x20000000
173#define SHF_MIPS_ADDR 0x40000000
174#define SHF_MIPS_STRING 0x80000000
175#define SHF_MIPS_NOSTRIP 0x08000000
176#define SHF_MIPS_LOCAL 0x04000000
177#define SHF_MIPS_NAMES 0x02000000
178#define SHF_MIPS_NODUPES 0x01000000
179
180#define MIPS_ABI_FP_ANY 0
181#define MIPS_ABI_FP_DOUBLE 1
182#define MIPS_ABI_FP_SINGLE 2
183#define MIPS_ABI_FP_SOFT 3
184#define MIPS_ABI_FP_OLD_64 4
185#define MIPS_ABI_FP_XX 5
186#define MIPS_ABI_FP_64 6
187#define MIPS_ABI_FP_64A 7
188
189struct mips_elf_abiflags_v0 {
190 uint16_t version;
191 uint8_t isa_level;
192 uint8_t isa_rev;
193
194 uint8_t gpr_size;
195 uint8_t cpr1_size;
196 uint8_t cpr2_size;
197 uint8_t fp_abi;
198 uint32_t isa_ext;
199 uint32_t ases;
200 uint32_t flags1;
201 uint32_t flags2;
202};
203
204#ifndef ELF_ARCH
205
206#define ELF_NGREG 45
207#define ELF_NFPREG 33
208
209typedef unsigned long elf_greg_t;
210typedef elf_greg_t elf_gregset_t[ELF_NGREG];
211
212typedef double elf_fpreg_t;
213typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG];
214
215void mips_dump_regs32(u32 *uregs, const struct pt_regs *regs);
216void mips_dump_regs64(u64 *uregs, const struct pt_regs *regs);
217
218#ifdef CONFIG_32BIT
219
220
221
222#define elf_check_arch elfo32_check_arch
223
224
225
226
227#define ELF_CLASS ELFCLASS32
228
229#define ELF_CORE_COPY_REGS(dest, regs) \
230 mips_dump_regs32((u32 *)&(dest), (regs));
231
232#endif
233
234#ifdef CONFIG_64BIT
235
236
237
238#define elf_check_arch elfn64_check_arch
239
240
241
242
243#define ELF_CLASS ELFCLASS64
244
245#define ELF_CORE_COPY_REGS(dest, regs) \
246 mips_dump_regs64((u64 *)&(dest), (regs));
247
248#endif
249
250
251
252
253#ifdef __MIPSEB__
254#define ELF_DATA ELFDATA2MSB
255#elif defined(__MIPSEL__)
256#define ELF_DATA ELFDATA2LSB
257#endif
258#define ELF_ARCH EM_MIPS
259
260#endif
261
262
263
264
265
266
267
268#ifdef CONFIG_MIPS_O32_FP64_SUPPORT
269# define __MIPS_O32_FP64_MUST_BE_ZERO 0
270#else
271# define __MIPS_O32_FP64_MUST_BE_ZERO EF_MIPS_FP64
272#endif
273
274#define mips_elf_check_machine(x) ((x)->e_machine == EM_MIPS)
275
276#define vmcore_elf32_check_arch mips_elf_check_machine
277#define vmcore_elf64_check_arch mips_elf_check_machine
278
279
280
281
282#define elfo32_check_arch(hdr) \
283({ \
284 int __res = 1; \
285 struct elfhdr *__h = (hdr); \
286 \
287 if (!mips_elf_check_machine(__h)) \
288 __res = 0; \
289 if (__h->e_ident[EI_CLASS] != ELFCLASS32) \
290 __res = 0; \
291 if ((__h->e_flags & EF_MIPS_ABI2) != 0) \
292 __res = 0; \
293 if (((__h->e_flags & EF_MIPS_ABI) != 0) && \
294 ((__h->e_flags & EF_MIPS_ABI) != EF_MIPS_ABI_O32)) \
295 __res = 0; \
296 if (__h->e_flags & __MIPS_O32_FP64_MUST_BE_ZERO) \
297 __res = 0; \
298 \
299 __res; \
300})
301
302
303
304
305#define elfn64_check_arch(hdr) \
306({ \
307 int __res = 1; \
308 struct elfhdr *__h = (hdr); \
309 \
310 if (!mips_elf_check_machine(__h)) \
311 __res = 0; \
312 if (__h->e_ident[EI_CLASS] != ELFCLASS64) \
313 __res = 0; \
314 \
315 __res; \
316})
317
318
319
320
321#define elfn32_check_arch(hdr) \
322({ \
323 int __res = 1; \
324 struct elfhdr *__h = (hdr); \
325 \
326 if (!mips_elf_check_machine(__h)) \
327 __res = 0; \
328 if (__h->e_ident[EI_CLASS] != ELFCLASS32) \
329 __res = 0; \
330 if (((__h->e_flags & EF_MIPS_ABI2) == 0) || \
331 ((__h->e_flags & EF_MIPS_ABI) != 0)) \
332 __res = 0; \
333 \
334 __res; \
335})
336
337struct mips_abi;
338
339extern struct mips_abi mips_abi;
340extern struct mips_abi mips_abi_32;
341extern struct mips_abi mips_abi_n32;
342
343#ifdef CONFIG_32BIT
344
345#define SET_PERSONALITY2(ex, state) \
346do { \
347 clear_thread_flag(TIF_HYBRID_FPREGS); \
348 set_thread_flag(TIF_32BIT_FPREGS); \
349 \
350 current->thread.abi = &mips_abi; \
351 \
352 mips_set_personality_fp(state); \
353 mips_set_personality_nan(state); \
354 \
355 if (personality(current->personality) != PER_LINUX) \
356 set_personality(PER_LINUX); \
357} while (0)
358
359#endif
360
361#ifdef CONFIG_64BIT
362
363#ifdef CONFIG_MIPS32_N32
364#define __SET_PERSONALITY32_N32() \
365 do { \
366 set_thread_flag(TIF_32BIT_ADDR); \
367 \
368 current->thread.abi = &mips_abi_n32; \
369 } while (0)
370#else
371#define __SET_PERSONALITY32_N32() \
372 do { } while (0)
373#endif
374
375#ifdef CONFIG_MIPS32_O32
376#define __SET_PERSONALITY32_O32(ex, state) \
377 do { \
378 set_thread_flag(TIF_32BIT_REGS); \
379 set_thread_flag(TIF_32BIT_ADDR); \
380 clear_thread_flag(TIF_HYBRID_FPREGS); \
381 set_thread_flag(TIF_32BIT_FPREGS); \
382 \
383 current->thread.abi = &mips_abi_32; \
384 \
385 mips_set_personality_fp(state); \
386 } while (0)
387#else
388#define __SET_PERSONALITY32_O32(ex, state) \
389 do { } while (0)
390#endif
391
392#ifdef CONFIG_MIPS32_COMPAT
393#define __SET_PERSONALITY32(ex, state) \
394do { \
395 if ((((ex).e_flags & EF_MIPS_ABI2) != 0) && \
396 ((ex).e_flags & EF_MIPS_ABI) == 0) \
397 __SET_PERSONALITY32_N32(); \
398 else \
399 __SET_PERSONALITY32_O32(ex, state); \
400} while (0)
401#else
402#define __SET_PERSONALITY32(ex, state) do { } while (0)
403#endif
404
405#define SET_PERSONALITY2(ex, state) \
406do { \
407 unsigned int p; \
408 \
409 clear_thread_flag(TIF_32BIT_REGS); \
410 clear_thread_flag(TIF_32BIT_FPREGS); \
411 clear_thread_flag(TIF_HYBRID_FPREGS); \
412 clear_thread_flag(TIF_32BIT_ADDR); \
413 \
414 if ((ex).e_ident[EI_CLASS] == ELFCLASS32) \
415 __SET_PERSONALITY32(ex, state); \
416 else \
417 current->thread.abi = &mips_abi; \
418 \
419 mips_set_personality_nan(state); \
420 \
421 p = personality(current->personality); \
422 if (p != PER_LINUX32 && p != PER_LINUX) \
423 set_personality(PER_LINUX); \
424} while (0)
425
426#endif
427
428#define CORE_DUMP_USE_REGSET
429#define ELF_EXEC_PAGESIZE PAGE_SIZE
430
431
432
433
434
435#define ELF_HWCAP (elf_hwcap)
436extern unsigned int elf_hwcap;
437#include <asm/hwcap.h>
438
439
440
441
442
443
444
445#define ELF_PLATFORM __elf_platform
446extern const char *__elf_platform;
447
448
449
450
451
452#define ELF_PLAT_INIT(_r, load_addr) do { \
453 _r->regs[1] = _r->regs[2] = _r->regs[3] = _r->regs[4] = 0; \
454 _r->regs[5] = _r->regs[6] = _r->regs[7] = _r->regs[8] = 0; \
455 _r->regs[9] = _r->regs[10] = _r->regs[11] = _r->regs[12] = 0; \
456 _r->regs[13] = _r->regs[14] = _r->regs[15] = _r->regs[16] = 0; \
457 _r->regs[17] = _r->regs[18] = _r->regs[19] = _r->regs[20] = 0; \
458 _r->regs[21] = _r->regs[22] = _r->regs[23] = _r->regs[24] = 0; \
459 _r->regs[25] = _r->regs[26] = _r->regs[27] = _r->regs[28] = 0; \
460 _r->regs[30] = _r->regs[31] = 0; \
461} while (0)
462
463
464
465
466
467
468#ifndef ELF_ET_DYN_BASE
469#define ELF_ET_DYN_BASE (TASK_SIZE / 3 * 2)
470#endif
471
472
473#define ARCH_DLINFO \
474do { \
475 NEW_AUX_ENT(AT_SYSINFO_EHDR, \
476 (unsigned long)current->mm->context.vdso); \
477} while (0)
478
479#define ARCH_HAS_SETUP_ADDITIONAL_PAGES 1
480struct linux_binprm;
481extern int arch_setup_additional_pages(struct linux_binprm *bprm,
482 int uses_interp);
483
484struct arch_elf_state {
485 int nan_2008;
486 int fp_abi;
487 int interp_fp_abi;
488 int overall_fp_mode;
489};
490
491#define MIPS_ABI_FP_UNKNOWN (-1)
492
493#define INIT_ARCH_ELF_STATE { \
494 .nan_2008 = -1, \
495 .fp_abi = MIPS_ABI_FP_UNKNOWN, \
496 .interp_fp_abi = MIPS_ABI_FP_UNKNOWN, \
497 .overall_fp_mode = -1, \
498}
499
500
501extern bool mips_use_nan_legacy;
502extern bool mips_use_nan_2008;
503
504extern int arch_elf_pt_proc(void *ehdr, void *phdr, struct file *elf,
505 bool is_interp, struct arch_elf_state *state);
506
507extern int arch_check_elf(void *ehdr, bool has_interpreter, void *interp_ehdr,
508 struct arch_elf_state *state);
509
510extern void mips_set_personality_nan(struct arch_elf_state *state);
511extern void mips_set_personality_fp(struct arch_elf_state *state);
512
513#define elf_read_implies_exec(ex, stk) mips_elf_read_implies_exec(&(ex), stk)
514extern int mips_elf_read_implies_exec(void *elf_ex, int exstack);
515
516#endif
517