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