1
2#include "qemu/osdep.h"
3#include <sys/param.h>
4
5#include <sys/resource.h>
6
7#include "qemu.h"
8#include "disas/disas.h"
9#include "qemu/path.h"
10
11#ifdef _ARCH_PPC64
12#undef ARCH_DLINFO
13#undef ELF_PLATFORM
14#undef ELF_HWCAP
15#undef ELF_HWCAP2
16#undef ELF_CLASS
17#undef ELF_DATA
18#undef ELF_ARCH
19#endif
20
21#define ELF_OSABI ELFOSABI_SYSV
22
23
24
25
26
27
28
29
30enum {
31 ADDR_NO_RANDOMIZE = 0x0040000,
32 FDPIC_FUNCPTRS = 0x0080000,
33
34 MMAP_PAGE_ZERO = 0x0100000,
35 ADDR_COMPAT_LAYOUT = 0x0200000,
36 READ_IMPLIES_EXEC = 0x0400000,
37 ADDR_LIMIT_32BIT = 0x0800000,
38 SHORT_INODE = 0x1000000,
39 WHOLE_SECONDS = 0x2000000,
40 STICKY_TIMEOUTS = 0x4000000,
41 ADDR_LIMIT_3GB = 0x8000000,
42};
43
44
45
46
47
48
49
50enum {
51 PER_LINUX = 0x0000,
52 PER_LINUX_32BIT = 0x0000 | ADDR_LIMIT_32BIT,
53 PER_LINUX_FDPIC = 0x0000 | FDPIC_FUNCPTRS,
54 PER_SVR4 = 0x0001 | STICKY_TIMEOUTS | MMAP_PAGE_ZERO,
55 PER_SVR3 = 0x0002 | STICKY_TIMEOUTS | SHORT_INODE,
56 PER_SCOSVR3 = 0x0003 | STICKY_TIMEOUTS | WHOLE_SECONDS | SHORT_INODE,
57 PER_OSR5 = 0x0003 | STICKY_TIMEOUTS | WHOLE_SECONDS,
58 PER_WYSEV386 = 0x0004 | STICKY_TIMEOUTS | SHORT_INODE,
59 PER_ISCR4 = 0x0005 | STICKY_TIMEOUTS,
60 PER_BSD = 0x0006,
61 PER_SUNOS = 0x0006 | STICKY_TIMEOUTS,
62 PER_XENIX = 0x0007 | STICKY_TIMEOUTS | SHORT_INODE,
63 PER_LINUX32 = 0x0008,
64 PER_LINUX32_3GB = 0x0008 | ADDR_LIMIT_3GB,
65 PER_IRIX32 = 0x0009 | STICKY_TIMEOUTS,
66 PER_IRIXN32 = 0x000a | STICKY_TIMEOUTS,
67 PER_IRIX64 = 0x000b | STICKY_TIMEOUTS,
68 PER_RISCOS = 0x000c,
69 PER_SOLARIS = 0x000d | STICKY_TIMEOUTS,
70 PER_UW7 = 0x000e | STICKY_TIMEOUTS | MMAP_PAGE_ZERO,
71 PER_OSF4 = 0x000f,
72 PER_HPUX = 0x0010,
73 PER_MASK = 0x00ff,
74};
75
76
77
78
79#define personality(pers) (pers & PER_MASK)
80
81int info_is_fdpic(struct image_info *info)
82{
83 return info->personality == PER_LINUX_FDPIC;
84}
85
86
87#ifndef MAP_DENYWRITE
88#define MAP_DENYWRITE 0
89#endif
90
91
92#ifndef ELIBBAD
93#define ELIBBAD 80
94#endif
95
96#ifdef TARGET_WORDS_BIGENDIAN
97#define ELF_DATA ELFDATA2MSB
98#else
99#define ELF_DATA ELFDATA2LSB
100#endif
101
102#ifdef TARGET_ABI_MIPSN32
103typedef abi_ullong target_elf_greg_t;
104#define tswapreg(ptr) tswap64(ptr)
105#else
106typedef abi_ulong target_elf_greg_t;
107#define tswapreg(ptr) tswapal(ptr)
108#endif
109
110#ifdef USE_UID16
111typedef abi_ushort target_uid_t;
112typedef abi_ushort target_gid_t;
113#else
114typedef abi_uint target_uid_t;
115typedef abi_uint target_gid_t;
116#endif
117typedef abi_int target_pid_t;
118
119#ifdef TARGET_I386
120
121#define ELF_PLATFORM get_elf_platform()
122
123static const char *get_elf_platform(void)
124{
125 static char elf_platform[] = "i386";
126 int family = object_property_get_int(OBJECT(thread_cpu), "family", NULL);
127 if (family > 6)
128 family = 6;
129 if (family >= 3)
130 elf_platform[1] = '0' + family;
131 return elf_platform;
132}
133
134#define ELF_HWCAP get_elf_hwcap()
135
136static uint32_t get_elf_hwcap(void)
137{
138 X86CPU *cpu = X86_CPU(thread_cpu);
139
140 return cpu->env.features[FEAT_1_EDX];
141}
142
143#ifdef TARGET_X86_64
144#define ELF_START_MMAP 0x2aaaaab000ULL
145
146#define ELF_CLASS ELFCLASS64
147#define ELF_ARCH EM_X86_64
148
149static inline void init_thread(struct target_pt_regs *regs, struct image_info *infop)
150{
151 regs->rax = 0;
152 regs->rsp = infop->start_stack;
153 regs->rip = infop->entry;
154}
155
156#define ELF_NREG 27
157typedef target_elf_greg_t target_elf_gregset_t[ELF_NREG];
158
159
160
161
162
163
164
165
166static void elf_core_copy_regs(target_elf_gregset_t *regs, const CPUX86State *env)
167{
168 (*regs)[0] = env->regs[15];
169 (*regs)[1] = env->regs[14];
170 (*regs)[2] = env->regs[13];
171 (*regs)[3] = env->regs[12];
172 (*regs)[4] = env->regs[R_EBP];
173 (*regs)[5] = env->regs[R_EBX];
174 (*regs)[6] = env->regs[11];
175 (*regs)[7] = env->regs[10];
176 (*regs)[8] = env->regs[9];
177 (*regs)[9] = env->regs[8];
178 (*regs)[10] = env->regs[R_EAX];
179 (*regs)[11] = env->regs[R_ECX];
180 (*regs)[12] = env->regs[R_EDX];
181 (*regs)[13] = env->regs[R_ESI];
182 (*regs)[14] = env->regs[R_EDI];
183 (*regs)[15] = env->regs[R_EAX];
184 (*regs)[16] = env->eip;
185 (*regs)[17] = env->segs[R_CS].selector & 0xffff;
186 (*regs)[18] = env->eflags;
187 (*regs)[19] = env->regs[R_ESP];
188 (*regs)[20] = env->segs[R_SS].selector & 0xffff;
189 (*regs)[21] = env->segs[R_FS].selector & 0xffff;
190 (*regs)[22] = env->segs[R_GS].selector & 0xffff;
191 (*regs)[23] = env->segs[R_DS].selector & 0xffff;
192 (*regs)[24] = env->segs[R_ES].selector & 0xffff;
193 (*regs)[25] = env->segs[R_FS].selector & 0xffff;
194 (*regs)[26] = env->segs[R_GS].selector & 0xffff;
195}
196
197#else
198
199#define ELF_START_MMAP 0x80000000
200
201
202
203
204#define elf_check_arch(x) ( ((x) == EM_386) || ((x) == EM_486) )
205
206
207
208
209#define ELF_CLASS ELFCLASS32
210#define ELF_ARCH EM_386
211
212static inline void init_thread(struct target_pt_regs *regs,
213 struct image_info *infop)
214{
215 regs->esp = infop->start_stack;
216 regs->eip = infop->entry;
217
218
219
220
221
222
223
224
225 regs->edx = 0;
226}
227
228#define ELF_NREG 17
229typedef target_elf_greg_t target_elf_gregset_t[ELF_NREG];
230
231
232
233
234
235
236
237
238static void elf_core_copy_regs(target_elf_gregset_t *regs, const CPUX86State *env)
239{
240 (*regs)[0] = env->regs[R_EBX];
241 (*regs)[1] = env->regs[R_ECX];
242 (*regs)[2] = env->regs[R_EDX];
243 (*regs)[3] = env->regs[R_ESI];
244 (*regs)[4] = env->regs[R_EDI];
245 (*regs)[5] = env->regs[R_EBP];
246 (*regs)[6] = env->regs[R_EAX];
247 (*regs)[7] = env->segs[R_DS].selector & 0xffff;
248 (*regs)[8] = env->segs[R_ES].selector & 0xffff;
249 (*regs)[9] = env->segs[R_FS].selector & 0xffff;
250 (*regs)[10] = env->segs[R_GS].selector & 0xffff;
251 (*regs)[11] = env->regs[R_EAX];
252 (*regs)[12] = env->eip;
253 (*regs)[13] = env->segs[R_CS].selector & 0xffff;
254 (*regs)[14] = env->eflags;
255 (*regs)[15] = env->regs[R_ESP];
256 (*regs)[16] = env->segs[R_SS].selector & 0xffff;
257}
258#endif
259
260#define USE_ELF_CORE_DUMP
261#define ELF_EXEC_PAGESIZE 4096
262
263#endif
264
265#ifdef TARGET_ARM
266
267#ifndef TARGET_AARCH64
268
269
270#define ELF_START_MMAP 0x80000000
271
272#define ELF_ARCH EM_ARM
273#define ELF_CLASS ELFCLASS32
274
275static inline void init_thread(struct target_pt_regs *regs,
276 struct image_info *infop)
277{
278 abi_long stack = infop->start_stack;
279 memset(regs, 0, sizeof(*regs));
280
281 regs->uregs[16] = ARM_CPU_MODE_USR;
282 if (infop->entry & 1) {
283 regs->uregs[16] |= CPSR_T;
284 }
285 regs->uregs[15] = infop->entry & 0xfffffffe;
286 regs->uregs[13] = infop->start_stack;
287
288 get_user_ual(regs->uregs[2], stack + 8);
289 get_user_ual(regs->uregs[1], stack + 4);
290
291 regs->uregs[0] = 0;
292
293
294 regs->uregs[10] = infop->start_data;
295
296
297 if (info_is_fdpic(infop)) {
298
299
300
301
302
303
304 regs->uregs[7] = infop->loadmap_addr;
305 if (infop->interpreter_loadmap_addr) {
306
307 regs->uregs[8] = infop->interpreter_loadmap_addr;
308 regs->uregs[9] = infop->interpreter_pt_dynamic_addr;
309 } else {
310 regs->uregs[8] = 0;
311 regs->uregs[9] = infop->pt_dynamic_addr;
312 }
313 }
314}
315
316#define ELF_NREG 18
317typedef target_elf_greg_t target_elf_gregset_t[ELF_NREG];
318
319static void elf_core_copy_regs(target_elf_gregset_t *regs, const CPUARMState *env)
320{
321 (*regs)[0] = tswapreg(env->regs[0]);
322 (*regs)[1] = tswapreg(env->regs[1]);
323 (*regs)[2] = tswapreg(env->regs[2]);
324 (*regs)[3] = tswapreg(env->regs[3]);
325 (*regs)[4] = tswapreg(env->regs[4]);
326 (*regs)[5] = tswapreg(env->regs[5]);
327 (*regs)[6] = tswapreg(env->regs[6]);
328 (*regs)[7] = tswapreg(env->regs[7]);
329 (*regs)[8] = tswapreg(env->regs[8]);
330 (*regs)[9] = tswapreg(env->regs[9]);
331 (*regs)[10] = tswapreg(env->regs[10]);
332 (*regs)[11] = tswapreg(env->regs[11]);
333 (*regs)[12] = tswapreg(env->regs[12]);
334 (*regs)[13] = tswapreg(env->regs[13]);
335 (*regs)[14] = tswapreg(env->regs[14]);
336 (*regs)[15] = tswapreg(env->regs[15]);
337
338 (*regs)[16] = tswapreg(cpsr_read((CPUARMState *)env));
339 (*regs)[17] = tswapreg(env->regs[0]);
340}
341
342#define USE_ELF_CORE_DUMP
343#define ELF_EXEC_PAGESIZE 4096
344
345enum
346{
347 ARM_HWCAP_ARM_SWP = 1 << 0,
348 ARM_HWCAP_ARM_HALF = 1 << 1,
349 ARM_HWCAP_ARM_THUMB = 1 << 2,
350 ARM_HWCAP_ARM_26BIT = 1 << 3,
351 ARM_HWCAP_ARM_FAST_MULT = 1 << 4,
352 ARM_HWCAP_ARM_FPA = 1 << 5,
353 ARM_HWCAP_ARM_VFP = 1 << 6,
354 ARM_HWCAP_ARM_EDSP = 1 << 7,
355 ARM_HWCAP_ARM_JAVA = 1 << 8,
356 ARM_HWCAP_ARM_IWMMXT = 1 << 9,
357 ARM_HWCAP_ARM_CRUNCH = 1 << 10,
358 ARM_HWCAP_ARM_THUMBEE = 1 << 11,
359 ARM_HWCAP_ARM_NEON = 1 << 12,
360 ARM_HWCAP_ARM_VFPv3 = 1 << 13,
361 ARM_HWCAP_ARM_VFPv3D16 = 1 << 14,
362 ARM_HWCAP_ARM_TLS = 1 << 15,
363 ARM_HWCAP_ARM_VFPv4 = 1 << 16,
364 ARM_HWCAP_ARM_IDIVA = 1 << 17,
365 ARM_HWCAP_ARM_IDIVT = 1 << 18,
366 ARM_HWCAP_ARM_VFPD32 = 1 << 19,
367 ARM_HWCAP_ARM_LPAE = 1 << 20,
368 ARM_HWCAP_ARM_EVTSTRM = 1 << 21,
369};
370
371enum {
372 ARM_HWCAP2_ARM_AES = 1 << 0,
373 ARM_HWCAP2_ARM_PMULL = 1 << 1,
374 ARM_HWCAP2_ARM_SHA1 = 1 << 2,
375 ARM_HWCAP2_ARM_SHA2 = 1 << 3,
376 ARM_HWCAP2_ARM_CRC32 = 1 << 4,
377};
378
379
380
381
382
383
384
385
386
387
388
389static int init_guest_commpage(unsigned long guest_base,
390 unsigned long guest_size)
391{
392 unsigned long real_start, test_page_addr;
393
394
395
396
397 test_page_addr = guest_base + (0xffff0f00 & qemu_host_page_mask);
398
399
400
401
402
403
404
405
406
407 if (test_page_addr >= guest_base
408 && test_page_addr < (guest_base + guest_size)) {
409 return -1;
410 }
411
412
413 real_start = (unsigned long)
414 mmap((void *)test_page_addr, qemu_host_page_size,
415 PROT_READ | PROT_WRITE,
416 MAP_ANONYMOUS | MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
417
418
419 if (real_start == -1ul) {
420 return 0;
421 }
422
423 if (real_start != test_page_addr) {
424
425 munmap((void *)real_start, qemu_host_page_size);
426 return 0;
427 }
428
429
430
431
432
433
434 __put_user(5, (uint32_t *)g2h(0xffff0ffcul));
435
436
437 if (mprotect((void *)test_page_addr, qemu_host_page_size, PROT_READ)) {
438 perror("Protecting guest commpage");
439 exit(-1);
440 }
441
442 return 1;
443}
444
445#define ELF_HWCAP get_elf_hwcap()
446#define ELF_HWCAP2 get_elf_hwcap2()
447
448static uint32_t get_elf_hwcap(void)
449{
450 ARMCPU *cpu = ARM_CPU(thread_cpu);
451 uint32_t hwcaps = 0;
452
453 hwcaps |= ARM_HWCAP_ARM_SWP;
454 hwcaps |= ARM_HWCAP_ARM_HALF;
455 hwcaps |= ARM_HWCAP_ARM_THUMB;
456 hwcaps |= ARM_HWCAP_ARM_FAST_MULT;
457
458
459#define GET_FEATURE(feat, hwcap) \
460 do { if (arm_feature(&cpu->env, feat)) { hwcaps |= hwcap; } } while (0)
461
462#define GET_FEATURE_ID(feat, hwcap) \
463 do { if (cpu_isar_feature(feat, cpu)) { hwcaps |= hwcap; } } while (0)
464
465
466 GET_FEATURE(ARM_FEATURE_V5, ARM_HWCAP_ARM_EDSP);
467 GET_FEATURE(ARM_FEATURE_VFP, ARM_HWCAP_ARM_VFP);
468 GET_FEATURE(ARM_FEATURE_IWMMXT, ARM_HWCAP_ARM_IWMMXT);
469 GET_FEATURE(ARM_FEATURE_THUMB2EE, ARM_HWCAP_ARM_THUMBEE);
470 GET_FEATURE(ARM_FEATURE_NEON, ARM_HWCAP_ARM_NEON);
471 GET_FEATURE(ARM_FEATURE_VFP3, ARM_HWCAP_ARM_VFPv3);
472 GET_FEATURE(ARM_FEATURE_V6K, ARM_HWCAP_ARM_TLS);
473 GET_FEATURE(ARM_FEATURE_VFP4, ARM_HWCAP_ARM_VFPv4);
474 GET_FEATURE_ID(arm_div, ARM_HWCAP_ARM_IDIVA);
475 GET_FEATURE_ID(thumb_div, ARM_HWCAP_ARM_IDIVT);
476
477
478
479
480
481 GET_FEATURE(ARM_FEATURE_VFP3, ARM_HWCAP_ARM_VFPD32);
482 GET_FEATURE(ARM_FEATURE_LPAE, ARM_HWCAP_ARM_LPAE);
483
484 return hwcaps;
485}
486
487static uint32_t get_elf_hwcap2(void)
488{
489 ARMCPU *cpu = ARM_CPU(thread_cpu);
490 uint32_t hwcaps = 0;
491
492 GET_FEATURE_ID(aa32_aes, ARM_HWCAP2_ARM_AES);
493 GET_FEATURE_ID(aa32_pmull, ARM_HWCAP2_ARM_PMULL);
494 GET_FEATURE_ID(aa32_sha1, ARM_HWCAP2_ARM_SHA1);
495 GET_FEATURE_ID(aa32_sha2, ARM_HWCAP2_ARM_SHA2);
496 GET_FEATURE_ID(aa32_crc32, ARM_HWCAP2_ARM_CRC32);
497 return hwcaps;
498}
499
500#undef GET_FEATURE
501#undef GET_FEATURE_ID
502
503#else
504
505#define ELF_START_MMAP 0x80000000
506
507#define ELF_ARCH EM_AARCH64
508#define ELF_CLASS ELFCLASS64
509#define ELF_PLATFORM "aarch64"
510
511static inline void init_thread(struct target_pt_regs *regs,
512 struct image_info *infop)
513{
514 abi_long stack = infop->start_stack;
515 memset(regs, 0, sizeof(*regs));
516
517 regs->pc = infop->entry & ~0x3ULL;
518 regs->sp = stack;
519}
520
521#define ELF_NREG 34
522typedef target_elf_greg_t target_elf_gregset_t[ELF_NREG];
523
524static void elf_core_copy_regs(target_elf_gregset_t *regs,
525 const CPUARMState *env)
526{
527 int i;
528
529 for (i = 0; i < 32; i++) {
530 (*regs)[i] = tswapreg(env->xregs[i]);
531 }
532 (*regs)[32] = tswapreg(env->pc);
533 (*regs)[33] = tswapreg(pstate_read((CPUARMState *)env));
534}
535
536#define USE_ELF_CORE_DUMP
537#define ELF_EXEC_PAGESIZE 4096
538
539enum {
540 ARM_HWCAP_A64_FP = 1 << 0,
541 ARM_HWCAP_A64_ASIMD = 1 << 1,
542 ARM_HWCAP_A64_EVTSTRM = 1 << 2,
543 ARM_HWCAP_A64_AES = 1 << 3,
544 ARM_HWCAP_A64_PMULL = 1 << 4,
545 ARM_HWCAP_A64_SHA1 = 1 << 5,
546 ARM_HWCAP_A64_SHA2 = 1 << 6,
547 ARM_HWCAP_A64_CRC32 = 1 << 7,
548 ARM_HWCAP_A64_ATOMICS = 1 << 8,
549 ARM_HWCAP_A64_FPHP = 1 << 9,
550 ARM_HWCAP_A64_ASIMDHP = 1 << 10,
551 ARM_HWCAP_A64_CPUID = 1 << 11,
552 ARM_HWCAP_A64_ASIMDRDM = 1 << 12,
553 ARM_HWCAP_A64_JSCVT = 1 << 13,
554 ARM_HWCAP_A64_FCMA = 1 << 14,
555 ARM_HWCAP_A64_LRCPC = 1 << 15,
556 ARM_HWCAP_A64_DCPOP = 1 << 16,
557 ARM_HWCAP_A64_SHA3 = 1 << 17,
558 ARM_HWCAP_A64_SM3 = 1 << 18,
559 ARM_HWCAP_A64_SM4 = 1 << 19,
560 ARM_HWCAP_A64_ASIMDDP = 1 << 20,
561 ARM_HWCAP_A64_SHA512 = 1 << 21,
562 ARM_HWCAP_A64_SVE = 1 << 22,
563};
564
565#define ELF_HWCAP get_elf_hwcap()
566
567static uint32_t get_elf_hwcap(void)
568{
569 ARMCPU *cpu = ARM_CPU(thread_cpu);
570 uint32_t hwcaps = 0;
571
572 hwcaps |= ARM_HWCAP_A64_FP;
573 hwcaps |= ARM_HWCAP_A64_ASIMD;
574
575
576#define GET_FEATURE_ID(feat, hwcap) \
577 do { if (cpu_isar_feature(feat, cpu)) { hwcaps |= hwcap; } } while (0)
578
579 GET_FEATURE_ID(aa64_aes, ARM_HWCAP_A64_AES);
580 GET_FEATURE_ID(aa64_pmull, ARM_HWCAP_A64_PMULL);
581 GET_FEATURE_ID(aa64_sha1, ARM_HWCAP_A64_SHA1);
582 GET_FEATURE_ID(aa64_sha256, ARM_HWCAP_A64_SHA2);
583 GET_FEATURE_ID(aa64_sha512, ARM_HWCAP_A64_SHA512);
584 GET_FEATURE_ID(aa64_crc32, ARM_HWCAP_A64_CRC32);
585 GET_FEATURE_ID(aa64_sha3, ARM_HWCAP_A64_SHA3);
586 GET_FEATURE_ID(aa64_sm3, ARM_HWCAP_A64_SM3);
587 GET_FEATURE_ID(aa64_sm4, ARM_HWCAP_A64_SM4);
588 GET_FEATURE_ID(aa64_fp16, ARM_HWCAP_A64_FPHP | ARM_HWCAP_A64_ASIMDHP);
589 GET_FEATURE_ID(aa64_atomics, ARM_HWCAP_A64_ATOMICS);
590 GET_FEATURE_ID(aa64_rdm, ARM_HWCAP_A64_ASIMDRDM);
591 GET_FEATURE_ID(aa64_dp, ARM_HWCAP_A64_ASIMDDP);
592 GET_FEATURE_ID(aa64_fcma, ARM_HWCAP_A64_FCMA);
593 GET_FEATURE_ID(aa64_sve, ARM_HWCAP_A64_SVE);
594
595#undef GET_FEATURE_ID
596
597 return hwcaps;
598}
599
600#endif
601#endif
602
603#ifdef TARGET_SPARC
604#ifdef TARGET_SPARC64
605
606#define ELF_START_MMAP 0x80000000
607#define ELF_HWCAP (HWCAP_SPARC_FLUSH | HWCAP_SPARC_STBAR | HWCAP_SPARC_SWAP \
608 | HWCAP_SPARC_MULDIV | HWCAP_SPARC_V9)
609#ifndef TARGET_ABI32
610#define elf_check_arch(x) ( (x) == EM_SPARCV9 || (x) == EM_SPARC32PLUS )
611#else
612#define elf_check_arch(x) ( (x) == EM_SPARC32PLUS || (x) == EM_SPARC )
613#endif
614
615#define ELF_CLASS ELFCLASS64
616#define ELF_ARCH EM_SPARCV9
617
618#define STACK_BIAS 2047
619
620static inline void init_thread(struct target_pt_regs *regs,
621 struct image_info *infop)
622{
623#ifndef TARGET_ABI32
624 regs->tstate = 0;
625#endif
626 regs->pc = infop->entry;
627 regs->npc = regs->pc + 4;
628 regs->y = 0;
629#ifdef TARGET_ABI32
630 regs->u_regs[14] = infop->start_stack - 16 * 4;
631#else
632 if (personality(infop->personality) == PER_LINUX32)
633 regs->u_regs[14] = infop->start_stack - 16 * 4;
634 else
635 regs->u_regs[14] = infop->start_stack - 16 * 8 - STACK_BIAS;
636#endif
637}
638
639#else
640#define ELF_START_MMAP 0x80000000
641#define ELF_HWCAP (HWCAP_SPARC_FLUSH | HWCAP_SPARC_STBAR | HWCAP_SPARC_SWAP \
642 | HWCAP_SPARC_MULDIV)
643
644#define ELF_CLASS ELFCLASS32
645#define ELF_ARCH EM_SPARC
646
647static inline void init_thread(struct target_pt_regs *regs,
648 struct image_info *infop)
649{
650 regs->psr = 0;
651 regs->pc = infop->entry;
652 regs->npc = regs->pc + 4;
653 regs->y = 0;
654 regs->u_regs[14] = infop->start_stack - 16 * 4;
655}
656
657#endif
658#endif
659
660#ifdef TARGET_PPC
661
662#define ELF_MACHINE PPC_ELF_MACHINE
663#define ELF_START_MMAP 0x80000000
664
665#if defined(TARGET_PPC64) && !defined(TARGET_ABI32)
666
667#define elf_check_arch(x) ( (x) == EM_PPC64 )
668
669#define ELF_CLASS ELFCLASS64
670
671#else
672
673#define ELF_CLASS ELFCLASS32
674
675#endif
676
677#define ELF_ARCH EM_PPC
678
679
680
681enum {
682 QEMU_PPC_FEATURE_32 = 0x80000000,
683 QEMU_PPC_FEATURE_64 = 0x40000000,
684 QEMU_PPC_FEATURE_601_INSTR = 0x20000000,
685 QEMU_PPC_FEATURE_HAS_ALTIVEC = 0x10000000,
686 QEMU_PPC_FEATURE_HAS_FPU = 0x08000000,
687 QEMU_PPC_FEATURE_HAS_MMU = 0x04000000,
688 QEMU_PPC_FEATURE_HAS_4xxMAC = 0x02000000,
689 QEMU_PPC_FEATURE_UNIFIED_CACHE = 0x01000000,
690 QEMU_PPC_FEATURE_HAS_SPE = 0x00800000,
691 QEMU_PPC_FEATURE_HAS_EFP_SINGLE = 0x00400000,
692 QEMU_PPC_FEATURE_HAS_EFP_DOUBLE = 0x00200000,
693 QEMU_PPC_FEATURE_NO_TB = 0x00100000,
694 QEMU_PPC_FEATURE_POWER4 = 0x00080000,
695 QEMU_PPC_FEATURE_POWER5 = 0x00040000,
696 QEMU_PPC_FEATURE_POWER5_PLUS = 0x00020000,
697 QEMU_PPC_FEATURE_CELL = 0x00010000,
698 QEMU_PPC_FEATURE_BOOKE = 0x00008000,
699 QEMU_PPC_FEATURE_SMT = 0x00004000,
700 QEMU_PPC_FEATURE_ICACHE_SNOOP = 0x00002000,
701 QEMU_PPC_FEATURE_ARCH_2_05 = 0x00001000,
702 QEMU_PPC_FEATURE_PA6T = 0x00000800,
703 QEMU_PPC_FEATURE_HAS_DFP = 0x00000400,
704 QEMU_PPC_FEATURE_POWER6_EXT = 0x00000200,
705 QEMU_PPC_FEATURE_ARCH_2_06 = 0x00000100,
706 QEMU_PPC_FEATURE_HAS_VSX = 0x00000080,
707 QEMU_PPC_FEATURE_PSERIES_PERFMON_COMPAT = 0x00000040,
708
709 QEMU_PPC_FEATURE_TRUE_LE = 0x00000002,
710 QEMU_PPC_FEATURE_PPC_LE = 0x00000001,
711
712
713 QEMU_PPC_FEATURE2_ARCH_2_07 = 0x80000000,
714 QEMU_PPC_FEATURE2_HAS_HTM = 0x40000000,
715 QEMU_PPC_FEATURE2_HAS_DSCR = 0x20000000,
716 QEMU_PPC_FEATURE2_HAS_EBB = 0x10000000,
717 QEMU_PPC_FEATURE2_HAS_ISEL = 0x08000000,
718 QEMU_PPC_FEATURE2_HAS_TAR = 0x04000000,
719 QEMU_PPC_FEATURE2_ARCH_3_00 = 0x00800000,
720};
721
722#define ELF_HWCAP get_elf_hwcap()
723
724static uint32_t get_elf_hwcap(void)
725{
726 PowerPCCPU *cpu = POWERPC_CPU(thread_cpu);
727 uint32_t features = 0;
728
729
730
731#define GET_FEATURE(flag, feature) \
732 do { if (cpu->env.insns_flags & flag) { features |= feature; } } while (0)
733#define GET_FEATURE2(flags, feature) \
734 do { \
735 if ((cpu->env.insns_flags2 & flags) == flags) { \
736 features |= feature; \
737 } \
738 } while (0)
739 GET_FEATURE(PPC_64B, QEMU_PPC_FEATURE_64);
740 GET_FEATURE(PPC_FLOAT, QEMU_PPC_FEATURE_HAS_FPU);
741 GET_FEATURE(PPC_ALTIVEC, QEMU_PPC_FEATURE_HAS_ALTIVEC);
742 GET_FEATURE(PPC_SPE, QEMU_PPC_FEATURE_HAS_SPE);
743 GET_FEATURE(PPC_SPE_SINGLE, QEMU_PPC_FEATURE_HAS_EFP_SINGLE);
744 GET_FEATURE(PPC_SPE_DOUBLE, QEMU_PPC_FEATURE_HAS_EFP_DOUBLE);
745 GET_FEATURE(PPC_BOOKE, QEMU_PPC_FEATURE_BOOKE);
746 GET_FEATURE(PPC_405_MAC, QEMU_PPC_FEATURE_HAS_4xxMAC);
747 GET_FEATURE2(PPC2_DFP, QEMU_PPC_FEATURE_HAS_DFP);
748 GET_FEATURE2(PPC2_VSX, QEMU_PPC_FEATURE_HAS_VSX);
749 GET_FEATURE2((PPC2_PERM_ISA206 | PPC2_DIVE_ISA206 | PPC2_ATOMIC_ISA206 |
750 PPC2_FP_CVT_ISA206 | PPC2_FP_TST_ISA206),
751 QEMU_PPC_FEATURE_ARCH_2_06);
752#undef GET_FEATURE
753#undef GET_FEATURE2
754
755 return features;
756}
757
758#define ELF_HWCAP2 get_elf_hwcap2()
759
760static uint32_t get_elf_hwcap2(void)
761{
762 PowerPCCPU *cpu = POWERPC_CPU(thread_cpu);
763 uint32_t features = 0;
764
765#define GET_FEATURE(flag, feature) \
766 do { if (cpu->env.insns_flags & flag) { features |= feature; } } while (0)
767#define GET_FEATURE2(flag, feature) \
768 do { if (cpu->env.insns_flags2 & flag) { features |= feature; } } while (0)
769
770 GET_FEATURE(PPC_ISEL, QEMU_PPC_FEATURE2_HAS_ISEL);
771 GET_FEATURE2(PPC2_BCTAR_ISA207, QEMU_PPC_FEATURE2_HAS_TAR);
772 GET_FEATURE2((PPC2_BCTAR_ISA207 | PPC2_LSQ_ISA207 | PPC2_ALTIVEC_207 |
773 PPC2_ISA207S), QEMU_PPC_FEATURE2_ARCH_2_07);
774 GET_FEATURE2(PPC2_ISA300, QEMU_PPC_FEATURE2_ARCH_3_00);
775
776#undef GET_FEATURE
777#undef GET_FEATURE2
778
779 return features;
780}
781
782
783
784
785
786
787
788
789
790
791#define DLINFO_ARCH_ITEMS 5
792#define ARCH_DLINFO \
793 do { \
794 PowerPCCPU *cpu = POWERPC_CPU(thread_cpu); \
795
796
797
798 \
799 NEW_AUX_ENT(AT_IGNOREPPC, AT_IGNOREPPC); \
800 NEW_AUX_ENT(AT_IGNOREPPC, AT_IGNOREPPC); \
801 NEW_AUX_ENT(AT_DCACHEBSIZE, cpu->env.dcache_line_size); \
802 NEW_AUX_ENT(AT_ICACHEBSIZE, cpu->env.icache_line_size); \
803 NEW_AUX_ENT(AT_UCACHEBSIZE, 0); \
804 } while (0)
805
806static inline void init_thread(struct target_pt_regs *_regs, struct image_info *infop)
807{
808 _regs->gpr[1] = infop->start_stack;
809#if defined(TARGET_PPC64) && !defined(TARGET_ABI32)
810 if (get_ppc64_abi(infop) < 2) {
811 uint64_t val;
812 get_user_u64(val, infop->entry + 8);
813 _regs->gpr[2] = val + infop->load_bias;
814 get_user_u64(val, infop->entry);
815 infop->entry = val + infop->load_bias;
816 } else {
817 _regs->gpr[12] = infop->entry;
818 }
819#endif
820 _regs->nip = infop->entry;
821}
822
823
824#define ELF_NREG 48
825typedef target_elf_greg_t target_elf_gregset_t[ELF_NREG];
826
827static void elf_core_copy_regs(target_elf_gregset_t *regs, const CPUPPCState *env)
828{
829 int i;
830 target_ulong ccr = 0;
831
832 for (i = 0; i < ARRAY_SIZE(env->gpr); i++) {
833 (*regs)[i] = tswapreg(env->gpr[i]);
834 }
835
836 (*regs)[32] = tswapreg(env->nip);
837 (*regs)[33] = tswapreg(env->msr);
838 (*regs)[35] = tswapreg(env->ctr);
839 (*regs)[36] = tswapreg(env->lr);
840 (*regs)[37] = tswapreg(env->xer);
841
842 for (i = 0; i < ARRAY_SIZE(env->crf); i++) {
843 ccr |= env->crf[i] << (32 - ((i + 1) * 4));
844 }
845 (*regs)[38] = tswapreg(ccr);
846}
847
848#define USE_ELF_CORE_DUMP
849#define ELF_EXEC_PAGESIZE 4096
850
851#endif
852
853#ifdef TARGET_MIPS
854
855#define ELF_START_MMAP 0x80000000
856
857#ifdef TARGET_MIPS64
858#define ELF_CLASS ELFCLASS64
859#else
860#define ELF_CLASS ELFCLASS32
861#endif
862#define ELF_ARCH EM_MIPS
863
864#define elf_check_arch(x) ((x) == EM_MIPS || (x) == EM_NANOMIPS)
865
866static inline void init_thread(struct target_pt_regs *regs,
867 struct image_info *infop)
868{
869 regs->cp0_status = 2 << CP0St_KSU;
870 regs->cp0_epc = infop->entry;
871 regs->regs[29] = infop->start_stack;
872}
873
874
875#define ELF_NREG 45
876typedef target_elf_greg_t target_elf_gregset_t[ELF_NREG];
877
878
879enum {
880#ifdef TARGET_MIPS64
881 TARGET_EF_R0 = 0,
882#else
883 TARGET_EF_R0 = 6,
884#endif
885 TARGET_EF_R26 = TARGET_EF_R0 + 26,
886 TARGET_EF_R27 = TARGET_EF_R0 + 27,
887 TARGET_EF_LO = TARGET_EF_R0 + 32,
888 TARGET_EF_HI = TARGET_EF_R0 + 33,
889 TARGET_EF_CP0_EPC = TARGET_EF_R0 + 34,
890 TARGET_EF_CP0_BADVADDR = TARGET_EF_R0 + 35,
891 TARGET_EF_CP0_STATUS = TARGET_EF_R0 + 36,
892 TARGET_EF_CP0_CAUSE = TARGET_EF_R0 + 37
893};
894
895
896static void elf_core_copy_regs(target_elf_gregset_t *regs, const CPUMIPSState *env)
897{
898 int i;
899
900 for (i = 0; i < TARGET_EF_R0; i++) {
901 (*regs)[i] = 0;
902 }
903 (*regs)[TARGET_EF_R0] = 0;
904
905 for (i = 1; i < ARRAY_SIZE(env->active_tc.gpr); i++) {
906 (*regs)[TARGET_EF_R0 + i] = tswapreg(env->active_tc.gpr[i]);
907 }
908
909 (*regs)[TARGET_EF_R26] = 0;
910 (*regs)[TARGET_EF_R27] = 0;
911 (*regs)[TARGET_EF_LO] = tswapreg(env->active_tc.LO[0]);
912 (*regs)[TARGET_EF_HI] = tswapreg(env->active_tc.HI[0]);
913 (*regs)[TARGET_EF_CP0_EPC] = tswapreg(env->active_tc.PC);
914 (*regs)[TARGET_EF_CP0_BADVADDR] = tswapreg(env->CP0_BadVAddr);
915 (*regs)[TARGET_EF_CP0_STATUS] = tswapreg(env->CP0_Status);
916 (*regs)[TARGET_EF_CP0_CAUSE] = tswapreg(env->CP0_Cause);
917}
918
919#define USE_ELF_CORE_DUMP
920#define ELF_EXEC_PAGESIZE 4096
921
922
923enum {
924 HWCAP_MIPS_R6 = (1 << 0),
925 HWCAP_MIPS_MSA = (1 << 1),
926};
927
928#define ELF_HWCAP get_elf_hwcap()
929
930static uint32_t get_elf_hwcap(void)
931{
932 MIPSCPU *cpu = MIPS_CPU(thread_cpu);
933 uint32_t hwcaps = 0;
934
935#define GET_FEATURE(flag, hwcap) \
936 do { if (cpu->env.insn_flags & (flag)) { hwcaps |= hwcap; } } while (0)
937
938 GET_FEATURE(ISA_MIPS32R6 | ISA_MIPS64R6, HWCAP_MIPS_R6);
939 GET_FEATURE(ASE_MSA, HWCAP_MIPS_MSA);
940
941#undef GET_FEATURE
942
943 return hwcaps;
944}
945
946#endif
947
948#ifdef TARGET_MICROBLAZE
949
950#define ELF_START_MMAP 0x80000000
951
952#define elf_check_arch(x) ( (x) == EM_MICROBLAZE || (x) == EM_MICROBLAZE_OLD)
953
954#define ELF_CLASS ELFCLASS32
955#define ELF_ARCH EM_MICROBLAZE
956
957static inline void init_thread(struct target_pt_regs *regs,
958 struct image_info *infop)
959{
960 regs->pc = infop->entry;
961 regs->r1 = infop->start_stack;
962
963}
964
965#define ELF_EXEC_PAGESIZE 4096
966
967#define USE_ELF_CORE_DUMP
968#define ELF_NREG 38
969typedef target_elf_greg_t target_elf_gregset_t[ELF_NREG];
970
971
972static void elf_core_copy_regs(target_elf_gregset_t *regs, const CPUMBState *env)
973{
974 int i, pos = 0;
975
976 for (i = 0; i < 32; i++) {
977 (*regs)[pos++] = tswapreg(env->regs[i]);
978 }
979
980 for (i = 0; i < 6; i++) {
981 (*regs)[pos++] = tswapreg(env->sregs[i]);
982 }
983}
984
985#endif
986
987#ifdef TARGET_NIOS2
988
989#define ELF_START_MMAP 0x80000000
990
991#define elf_check_arch(x) ((x) == EM_ALTERA_NIOS2)
992
993#define ELF_CLASS ELFCLASS32
994#define ELF_ARCH EM_ALTERA_NIOS2
995
996static void init_thread(struct target_pt_regs *regs, struct image_info *infop)
997{
998 regs->ea = infop->entry;
999 regs->sp = infop->start_stack;
1000 regs->estatus = 0x3;
1001}
1002
1003#define ELF_EXEC_PAGESIZE 4096
1004
1005#define USE_ELF_CORE_DUMP
1006#define ELF_NREG 49
1007typedef target_elf_greg_t target_elf_gregset_t[ELF_NREG];
1008
1009
1010static void elf_core_copy_regs(target_elf_gregset_t *regs,
1011 const CPUNios2State *env)
1012{
1013 int i;
1014
1015 (*regs)[0] = -1;
1016 for (i = 1; i < 8; i++)
1017 (*regs)[i] = tswapreg(env->regs[i + 7]);
1018
1019 for (i = 8; i < 16; i++)
1020 (*regs)[i] = tswapreg(env->regs[i - 8]);
1021
1022 for (i = 16; i < 24; i++)
1023 (*regs)[i] = tswapreg(env->regs[i + 7]);
1024 (*regs)[24] = -1;
1025 (*regs)[25] = -1;
1026 (*regs)[26] = tswapreg(env->regs[R_GP]);
1027 (*regs)[27] = tswapreg(env->regs[R_SP]);
1028 (*regs)[28] = tswapreg(env->regs[R_FP]);
1029 (*regs)[29] = tswapreg(env->regs[R_EA]);
1030 (*regs)[30] = -1;
1031 (*regs)[31] = tswapreg(env->regs[R_RA]);
1032
1033 (*regs)[32] = tswapreg(env->regs[R_PC]);
1034
1035 (*regs)[33] = -1;
1036 (*regs)[34] = tswapreg(env->regs[CR_ESTATUS]);
1037
1038 for (i = 35; i < 49; i++)
1039 (*regs)[i] = -1;
1040}
1041
1042#endif
1043
1044#ifdef TARGET_OPENRISC
1045
1046#define ELF_START_MMAP 0x08000000
1047
1048#define ELF_ARCH EM_OPENRISC
1049#define ELF_CLASS ELFCLASS32
1050#define ELF_DATA ELFDATA2MSB
1051
1052static inline void init_thread(struct target_pt_regs *regs,
1053 struct image_info *infop)
1054{
1055 regs->pc = infop->entry;
1056 regs->gpr[1] = infop->start_stack;
1057}
1058
1059#define USE_ELF_CORE_DUMP
1060#define ELF_EXEC_PAGESIZE 8192
1061
1062
1063#define ELF_NREG 34
1064typedef target_elf_greg_t target_elf_gregset_t[ELF_NREG];
1065
1066static void elf_core_copy_regs(target_elf_gregset_t *regs,
1067 const CPUOpenRISCState *env)
1068{
1069 int i;
1070
1071 for (i = 0; i < 32; i++) {
1072 (*regs)[i] = tswapreg(cpu_get_gpr(env, i));
1073 }
1074 (*regs)[32] = tswapreg(env->pc);
1075 (*regs)[33] = tswapreg(cpu_get_sr(env));
1076}
1077#define ELF_HWCAP 0
1078#define ELF_PLATFORM NULL
1079
1080#endif
1081
1082#ifdef TARGET_SH4
1083
1084#define ELF_START_MMAP 0x80000000
1085
1086#define ELF_CLASS ELFCLASS32
1087#define ELF_ARCH EM_SH
1088
1089static inline void init_thread(struct target_pt_regs *regs,
1090 struct image_info *infop)
1091{
1092
1093 regs->pc = infop->entry;
1094 regs->regs[15] = infop->start_stack;
1095}
1096
1097
1098#define ELF_NREG 23
1099typedef target_elf_greg_t target_elf_gregset_t[ELF_NREG];
1100
1101
1102enum {
1103 TARGET_REG_PC = 16,
1104 TARGET_REG_PR = 17,
1105 TARGET_REG_SR = 18,
1106 TARGET_REG_GBR = 19,
1107 TARGET_REG_MACH = 20,
1108 TARGET_REG_MACL = 21,
1109 TARGET_REG_SYSCALL = 22
1110};
1111
1112static inline void elf_core_copy_regs(target_elf_gregset_t *regs,
1113 const CPUSH4State *env)
1114{
1115 int i;
1116
1117 for (i = 0; i < 16; i++) {
1118 (*regs)[i] = tswapreg(env->gregs[i]);
1119 }
1120
1121 (*regs)[TARGET_REG_PC] = tswapreg(env->pc);
1122 (*regs)[TARGET_REG_PR] = tswapreg(env->pr);
1123 (*regs)[TARGET_REG_SR] = tswapreg(env->sr);
1124 (*regs)[TARGET_REG_GBR] = tswapreg(env->gbr);
1125 (*regs)[TARGET_REG_MACH] = tswapreg(env->mach);
1126 (*regs)[TARGET_REG_MACL] = tswapreg(env->macl);
1127 (*regs)[TARGET_REG_SYSCALL] = 0;
1128}
1129
1130#define USE_ELF_CORE_DUMP
1131#define ELF_EXEC_PAGESIZE 4096
1132
1133enum {
1134 SH_CPU_HAS_FPU = 0x0001,
1135 SH_CPU_HAS_P2_FLUSH_BUG = 0x0002,
1136 SH_CPU_HAS_MMU_PAGE_ASSOC = 0x0004,
1137 SH_CPU_HAS_DSP = 0x0008,
1138 SH_CPU_HAS_PERF_COUNTER = 0x0010,
1139 SH_CPU_HAS_PTEA = 0x0020,
1140 SH_CPU_HAS_LLSC = 0x0040,
1141 SH_CPU_HAS_L2_CACHE = 0x0080,
1142 SH_CPU_HAS_OP32 = 0x0100,
1143 SH_CPU_HAS_PTEAEX = 0x0200,
1144};
1145
1146#define ELF_HWCAP get_elf_hwcap()
1147
1148static uint32_t get_elf_hwcap(void)
1149{
1150 SuperHCPU *cpu = SUPERH_CPU(thread_cpu);
1151 uint32_t hwcap = 0;
1152
1153 hwcap |= SH_CPU_HAS_FPU;
1154
1155 if (cpu->env.features & SH_FEATURE_SH4A) {
1156 hwcap |= SH_CPU_HAS_LLSC;
1157 }
1158
1159 return hwcap;
1160}
1161
1162#endif
1163
1164#ifdef TARGET_CRIS
1165
1166#define ELF_START_MMAP 0x80000000
1167
1168#define ELF_CLASS ELFCLASS32
1169#define ELF_ARCH EM_CRIS
1170
1171static inline void init_thread(struct target_pt_regs *regs,
1172 struct image_info *infop)
1173{
1174 regs->erp = infop->entry;
1175}
1176
1177#define ELF_EXEC_PAGESIZE 8192
1178
1179#endif
1180
1181#ifdef TARGET_M68K
1182
1183#define ELF_START_MMAP 0x80000000
1184
1185#define ELF_CLASS ELFCLASS32
1186#define ELF_ARCH EM_68K
1187
1188
1189
1190
1191static inline void init_thread(struct target_pt_regs *regs,
1192 struct image_info *infop)
1193{
1194 regs->usp = infop->start_stack;
1195 regs->sr = 0;
1196 regs->pc = infop->entry;
1197}
1198
1199
1200#define ELF_NREG 20
1201typedef target_elf_greg_t target_elf_gregset_t[ELF_NREG];
1202
1203static void elf_core_copy_regs(target_elf_gregset_t *regs, const CPUM68KState *env)
1204{
1205 (*regs)[0] = tswapreg(env->dregs[1]);
1206 (*regs)[1] = tswapreg(env->dregs[2]);
1207 (*regs)[2] = tswapreg(env->dregs[3]);
1208 (*regs)[3] = tswapreg(env->dregs[4]);
1209 (*regs)[4] = tswapreg(env->dregs[5]);
1210 (*regs)[5] = tswapreg(env->dregs[6]);
1211 (*regs)[6] = tswapreg(env->dregs[7]);
1212 (*regs)[7] = tswapreg(env->aregs[0]);
1213 (*regs)[8] = tswapreg(env->aregs[1]);
1214 (*regs)[9] = tswapreg(env->aregs[2]);
1215 (*regs)[10] = tswapreg(env->aregs[3]);
1216 (*regs)[11] = tswapreg(env->aregs[4]);
1217 (*regs)[12] = tswapreg(env->aregs[5]);
1218 (*regs)[13] = tswapreg(env->aregs[6]);
1219 (*regs)[14] = tswapreg(env->dregs[0]);
1220 (*regs)[15] = tswapreg(env->aregs[7]);
1221 (*regs)[16] = tswapreg(env->dregs[0]);
1222 (*regs)[17] = tswapreg(env->sr);
1223 (*regs)[18] = tswapreg(env->pc);
1224 (*regs)[19] = 0;
1225}
1226
1227#define USE_ELF_CORE_DUMP
1228#define ELF_EXEC_PAGESIZE 8192
1229
1230#endif
1231
1232#ifdef TARGET_ALPHA
1233
1234#define ELF_START_MMAP (0x30000000000ULL)
1235
1236#define ELF_CLASS ELFCLASS64
1237#define ELF_ARCH EM_ALPHA
1238
1239static inline void init_thread(struct target_pt_regs *regs,
1240 struct image_info *infop)
1241{
1242 regs->pc = infop->entry;
1243 regs->ps = 8;
1244 regs->usp = infop->start_stack;
1245}
1246
1247#define ELF_EXEC_PAGESIZE 8192
1248
1249#endif
1250
1251#ifdef TARGET_S390X
1252
1253#define ELF_START_MMAP (0x20000000000ULL)
1254
1255#define ELF_CLASS ELFCLASS64
1256#define ELF_DATA ELFDATA2MSB
1257#define ELF_ARCH EM_S390
1258
1259static inline void init_thread(struct target_pt_regs *regs, struct image_info *infop)
1260{
1261 regs->psw.addr = infop->entry;
1262 regs->psw.mask = PSW_MASK_64 | PSW_MASK_32;
1263 regs->gprs[15] = infop->start_stack;
1264}
1265
1266#endif
1267
1268#ifdef TARGET_TILEGX
1269
1270
1271#define ELF_START_MMAP (0x00000020000000000ULL)
1272
1273#define elf_check_arch(x) ((x) == EM_TILEGX)
1274
1275#define ELF_CLASS ELFCLASS64
1276#define ELF_DATA ELFDATA2LSB
1277#define ELF_ARCH EM_TILEGX
1278
1279static inline void init_thread(struct target_pt_regs *regs,
1280 struct image_info *infop)
1281{
1282 regs->pc = infop->entry;
1283 regs->sp = infop->start_stack;
1284
1285}
1286
1287#define ELF_EXEC_PAGESIZE 65536
1288
1289#endif
1290
1291#ifdef TARGET_RISCV
1292
1293#define ELF_START_MMAP 0x80000000
1294#define ELF_ARCH EM_RISCV
1295
1296#ifdef TARGET_RISCV32
1297#define ELF_CLASS ELFCLASS32
1298#else
1299#define ELF_CLASS ELFCLASS64
1300#endif
1301
1302static inline void init_thread(struct target_pt_regs *regs,
1303 struct image_info *infop)
1304{
1305 regs->sepc = infop->entry;
1306 regs->sp = infop->start_stack;
1307}
1308
1309#define ELF_EXEC_PAGESIZE 4096
1310
1311#endif
1312
1313#ifdef TARGET_HPPA
1314
1315#define ELF_START_MMAP 0x80000000
1316#define ELF_CLASS ELFCLASS32
1317#define ELF_ARCH EM_PARISC
1318#define ELF_PLATFORM "PARISC"
1319#define STACK_GROWS_DOWN 0
1320#define STACK_ALIGNMENT 64
1321
1322static inline void init_thread(struct target_pt_regs *regs,
1323 struct image_info *infop)
1324{
1325 regs->iaoq[0] = infop->entry;
1326 regs->iaoq[1] = infop->entry + 4;
1327 regs->gr[23] = 0;
1328 regs->gr[24] = infop->arg_start;
1329 regs->gr[25] = (infop->arg_end - infop->arg_start) / sizeof(abi_ulong);
1330
1331 regs->gr[30] = infop->start_stack + 64;
1332 regs->gr[31] = infop->entry;
1333}
1334
1335#endif
1336
1337#ifdef TARGET_XTENSA
1338
1339#define ELF_START_MMAP 0x20000000
1340
1341#define ELF_CLASS ELFCLASS32
1342#define ELF_ARCH EM_XTENSA
1343
1344static inline void init_thread(struct target_pt_regs *regs,
1345 struct image_info *infop)
1346{
1347 regs->windowbase = 0;
1348 regs->windowstart = 1;
1349 regs->areg[1] = infop->start_stack;
1350 regs->pc = infop->entry;
1351}
1352
1353
1354#define ELF_NREG 128
1355typedef target_elf_greg_t target_elf_gregset_t[ELF_NREG];
1356
1357enum {
1358 TARGET_REG_PC,
1359 TARGET_REG_PS,
1360 TARGET_REG_LBEG,
1361 TARGET_REG_LEND,
1362 TARGET_REG_LCOUNT,
1363 TARGET_REG_SAR,
1364 TARGET_REG_WINDOWSTART,
1365 TARGET_REG_WINDOWBASE,
1366 TARGET_REG_THREADPTR,
1367 TARGET_REG_AR0 = 64,
1368};
1369
1370static void elf_core_copy_regs(target_elf_gregset_t *regs,
1371 const CPUXtensaState *env)
1372{
1373 unsigned i;
1374
1375 (*regs)[TARGET_REG_PC] = tswapreg(env->pc);
1376 (*regs)[TARGET_REG_PS] = tswapreg(env->sregs[PS] & ~PS_EXCM);
1377 (*regs)[TARGET_REG_LBEG] = tswapreg(env->sregs[LBEG]);
1378 (*regs)[TARGET_REG_LEND] = tswapreg(env->sregs[LEND]);
1379 (*regs)[TARGET_REG_LCOUNT] = tswapreg(env->sregs[LCOUNT]);
1380 (*regs)[TARGET_REG_SAR] = tswapreg(env->sregs[SAR]);
1381 (*regs)[TARGET_REG_WINDOWSTART] = tswapreg(env->sregs[WINDOW_START]);
1382 (*regs)[TARGET_REG_WINDOWBASE] = tswapreg(env->sregs[WINDOW_BASE]);
1383 (*regs)[TARGET_REG_THREADPTR] = tswapreg(env->uregs[THREADPTR]);
1384 xtensa_sync_phys_from_window((CPUXtensaState *)env);
1385 for (i = 0; i < env->config->nareg; ++i) {
1386 (*regs)[TARGET_REG_AR0 + i] = tswapreg(env->phys_regs[i]);
1387 }
1388}
1389
1390#define USE_ELF_CORE_DUMP
1391#define ELF_EXEC_PAGESIZE 4096
1392
1393#endif
1394
1395#ifndef ELF_PLATFORM
1396#define ELF_PLATFORM (NULL)
1397#endif
1398
1399#ifndef ELF_MACHINE
1400#define ELF_MACHINE ELF_ARCH
1401#endif
1402
1403#ifndef elf_check_arch
1404#define elf_check_arch(x) ((x) == ELF_ARCH)
1405#endif
1406
1407#ifndef ELF_HWCAP
1408#define ELF_HWCAP 0
1409#endif
1410
1411#ifndef STACK_GROWS_DOWN
1412#define STACK_GROWS_DOWN 1
1413#endif
1414
1415#ifndef STACK_ALIGNMENT
1416#define STACK_ALIGNMENT 16
1417#endif
1418
1419#ifdef TARGET_ABI32
1420#undef ELF_CLASS
1421#define ELF_CLASS ELFCLASS32
1422#undef bswaptls
1423#define bswaptls(ptr) bswap32s(ptr)
1424#endif
1425
1426#include "elf.h"
1427
1428struct exec
1429{
1430 unsigned int a_info;
1431 unsigned int a_text;
1432 unsigned int a_data;
1433 unsigned int a_bss;
1434 unsigned int a_syms;
1435 unsigned int a_entry;
1436 unsigned int a_trsize;
1437 unsigned int a_drsize;
1438};
1439
1440
1441#define N_MAGIC(exec) ((exec).a_info & 0xffff)
1442#define OMAGIC 0407
1443#define NMAGIC 0410
1444#define ZMAGIC 0413
1445#define QMAGIC 0314
1446
1447
1448#define TARGET_ELF_EXEC_PAGESIZE \
1449 (((eppnt->p_align & ~qemu_host_page_mask) != 0) ? \
1450 TARGET_PAGE_SIZE : MAX(qemu_host_page_size, TARGET_PAGE_SIZE))
1451#define TARGET_ELF_PAGELENGTH(_v) ROUND_UP((_v), TARGET_ELF_EXEC_PAGESIZE)
1452#define TARGET_ELF_PAGESTART(_v) ((_v) & \
1453 ~(abi_ulong)(TARGET_ELF_EXEC_PAGESIZE-1))
1454#define TARGET_ELF_PAGEOFFSET(_v) ((_v) & (TARGET_ELF_EXEC_PAGESIZE-1))
1455
1456#define DLINFO_ITEMS 15
1457
1458static inline void memcpy_fromfs(void * to, const void * from, unsigned long n)
1459{
1460 memcpy(to, from, n);
1461}
1462
1463#ifdef BSWAP_NEEDED
1464static void bswap_ehdr(struct elfhdr *ehdr)
1465{
1466 bswap16s(&ehdr->e_type);
1467 bswap16s(&ehdr->e_machine);
1468 bswap32s(&ehdr->e_version);
1469 bswaptls(&ehdr->e_entry);
1470 bswaptls(&ehdr->e_phoff);
1471 bswaptls(&ehdr->e_shoff);
1472 bswap32s(&ehdr->e_flags);
1473 bswap16s(&ehdr->e_ehsize);
1474 bswap16s(&ehdr->e_phentsize);
1475 bswap16s(&ehdr->e_phnum);
1476 bswap16s(&ehdr->e_shentsize);
1477 bswap16s(&ehdr->e_shnum);
1478 bswap16s(&ehdr->e_shstrndx);
1479}
1480
1481static void bswap_phdr(struct elf_phdr *phdr, int phnum)
1482{
1483 int i;
1484 for (i = 0; i < phnum; ++i, ++phdr) {
1485 bswap32s(&phdr->p_type);
1486 bswap32s(&phdr->p_flags);
1487 bswaptls(&phdr->p_offset);
1488 bswaptls(&phdr->p_vaddr);
1489 bswaptls(&phdr->p_paddr);
1490 bswaptls(&phdr->p_filesz);
1491 bswaptls(&phdr->p_memsz);
1492 bswaptls(&phdr->p_align);
1493 }
1494}
1495
1496static void bswap_shdr(struct elf_shdr *shdr, int shnum)
1497{
1498 int i;
1499 for (i = 0; i < shnum; ++i, ++shdr) {
1500 bswap32s(&shdr->sh_name);
1501 bswap32s(&shdr->sh_type);
1502 bswaptls(&shdr->sh_flags);
1503 bswaptls(&shdr->sh_addr);
1504 bswaptls(&shdr->sh_offset);
1505 bswaptls(&shdr->sh_size);
1506 bswap32s(&shdr->sh_link);
1507 bswap32s(&shdr->sh_info);
1508 bswaptls(&shdr->sh_addralign);
1509 bswaptls(&shdr->sh_entsize);
1510 }
1511}
1512
1513static void bswap_sym(struct elf_sym *sym)
1514{
1515 bswap32s(&sym->st_name);
1516 bswaptls(&sym->st_value);
1517 bswaptls(&sym->st_size);
1518 bswap16s(&sym->st_shndx);
1519}
1520
1521#ifdef TARGET_MIPS
1522static void bswap_mips_abiflags(Mips_elf_abiflags_v0 *abiflags)
1523{
1524 bswap16s(&abiflags->version);
1525 bswap32s(&abiflags->ases);
1526 bswap32s(&abiflags->isa_ext);
1527 bswap32s(&abiflags->flags1);
1528 bswap32s(&abiflags->flags2);
1529}
1530#endif
1531#else
1532static inline void bswap_ehdr(struct elfhdr *ehdr) { }
1533static inline void bswap_phdr(struct elf_phdr *phdr, int phnum) { }
1534static inline void bswap_shdr(struct elf_shdr *shdr, int shnum) { }
1535static inline void bswap_sym(struct elf_sym *sym) { }
1536#ifdef TARGET_MIPS
1537static inline void bswap_mips_abiflags(Mips_elf_abiflags_v0 *abiflags) { }
1538#endif
1539#endif
1540
1541#ifdef USE_ELF_CORE_DUMP
1542static int elf_core_dump(int, const CPUArchState *);
1543#endif
1544static void load_symbols(struct elfhdr *hdr, int fd, abi_ulong load_bias);
1545
1546
1547
1548static bool elf_check_ident(struct elfhdr *ehdr)
1549{
1550 return (ehdr->e_ident[EI_MAG0] == ELFMAG0
1551 && ehdr->e_ident[EI_MAG1] == ELFMAG1
1552 && ehdr->e_ident[EI_MAG2] == ELFMAG2
1553 && ehdr->e_ident[EI_MAG3] == ELFMAG3
1554 && ehdr->e_ident[EI_CLASS] == ELF_CLASS
1555 && ehdr->e_ident[EI_DATA] == ELF_DATA
1556 && ehdr->e_ident[EI_VERSION] == EV_CURRENT);
1557}
1558
1559
1560
1561static bool elf_check_ehdr(struct elfhdr *ehdr)
1562{
1563 return (elf_check_arch(ehdr->e_machine)
1564 && ehdr->e_ehsize == sizeof(struct elfhdr)
1565 && ehdr->e_phentsize == sizeof(struct elf_phdr)
1566 && (ehdr->e_type == ET_EXEC || ehdr->e_type == ET_DYN));
1567}
1568
1569
1570
1571
1572
1573
1574
1575static abi_ulong copy_elf_strings(int argc, char **argv, char *scratch,
1576 abi_ulong p, abi_ulong stack_limit)
1577{
1578 char *tmp;
1579 int len, i;
1580 abi_ulong top = p;
1581
1582 if (!p) {
1583 return 0;
1584 }
1585
1586 if (STACK_GROWS_DOWN) {
1587 int offset = ((p - 1) % TARGET_PAGE_SIZE) + 1;
1588 for (i = argc - 1; i >= 0; --i) {
1589 tmp = argv[i];
1590 if (!tmp) {
1591 fprintf(stderr, "VFS: argc is wrong");
1592 exit(-1);
1593 }
1594 len = strlen(tmp) + 1;
1595 tmp += len;
1596
1597 if (len > (p - stack_limit)) {
1598 return 0;
1599 }
1600 while (len) {
1601 int bytes_to_copy = (len > offset) ? offset : len;
1602 tmp -= bytes_to_copy;
1603 p -= bytes_to_copy;
1604 offset -= bytes_to_copy;
1605 len -= bytes_to_copy;
1606
1607 memcpy_fromfs(scratch + offset, tmp, bytes_to_copy);
1608
1609 if (offset == 0) {
1610 memcpy_to_target(p, scratch, top - p);
1611 top = p;
1612 offset = TARGET_PAGE_SIZE;
1613 }
1614 }
1615 }
1616 if (p != top) {
1617 memcpy_to_target(p, scratch + offset, top - p);
1618 }
1619 } else {
1620 int remaining = TARGET_PAGE_SIZE - (p % TARGET_PAGE_SIZE);
1621 for (i = 0; i < argc; ++i) {
1622 tmp = argv[i];
1623 if (!tmp) {
1624 fprintf(stderr, "VFS: argc is wrong");
1625 exit(-1);
1626 }
1627 len = strlen(tmp) + 1;
1628 if (len > (stack_limit - p)) {
1629 return 0;
1630 }
1631 while (len) {
1632 int bytes_to_copy = (len > remaining) ? remaining : len;
1633
1634 memcpy_fromfs(scratch + (p - top), tmp, bytes_to_copy);
1635
1636 tmp += bytes_to_copy;
1637 remaining -= bytes_to_copy;
1638 p += bytes_to_copy;
1639 len -= bytes_to_copy;
1640
1641 if (remaining == 0) {
1642 memcpy_to_target(top, scratch, p - top);
1643 top = p;
1644 remaining = TARGET_PAGE_SIZE;
1645 }
1646 }
1647 }
1648 if (p != top) {
1649 memcpy_to_target(top, scratch, p - top);
1650 }
1651 }
1652
1653 return p;
1654}
1655
1656
1657
1658
1659
1660
1661#define STACK_LOWER_LIMIT (32 * TARGET_PAGE_SIZE)
1662
1663static abi_ulong setup_arg_pages(struct linux_binprm *bprm,
1664 struct image_info *info)
1665{
1666 abi_ulong size, error, guard;
1667
1668 size = guest_stack_size;
1669 if (size < STACK_LOWER_LIMIT) {
1670 size = STACK_LOWER_LIMIT;
1671 }
1672 guard = TARGET_PAGE_SIZE;
1673 if (guard < qemu_real_host_page_size) {
1674 guard = qemu_real_host_page_size;
1675 }
1676
1677 error = target_mmap(0, size + guard, PROT_READ | PROT_WRITE,
1678 MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
1679 if (error == -1) {
1680 perror("mmap stack");
1681 exit(-1);
1682 }
1683
1684
1685 if (STACK_GROWS_DOWN) {
1686 target_mprotect(error, guard, PROT_NONE);
1687 info->stack_limit = error + guard;
1688 return info->stack_limit + size - sizeof(void *);
1689 } else {
1690 target_mprotect(error + size, guard, PROT_NONE);
1691 info->stack_limit = error + size;
1692 return error;
1693 }
1694}
1695
1696
1697
1698static void zero_bss(abi_ulong elf_bss, abi_ulong last_bss, int prot)
1699{
1700 uintptr_t host_start, host_map_start, host_end;
1701
1702 last_bss = TARGET_PAGE_ALIGN(last_bss);
1703
1704
1705
1706
1707
1708
1709
1710
1711
1712
1713
1714
1715 host_start = (uintptr_t) g2h(elf_bss);
1716 host_end = (uintptr_t) g2h(last_bss);
1717 host_map_start = REAL_HOST_PAGE_ALIGN(host_start);
1718
1719 if (host_map_start < host_end) {
1720 void *p = mmap((void *)host_map_start, host_end - host_map_start,
1721 prot, MAP_FIXED | MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
1722 if (p == MAP_FAILED) {
1723 perror("cannot mmap brk");
1724 exit(-1);
1725 }
1726 }
1727
1728
1729 if ((page_get_flags(last_bss-1) & prot) != prot) {
1730 page_set_flags(elf_bss & TARGET_PAGE_MASK, last_bss, prot | PAGE_VALID);
1731 }
1732
1733 if (host_start < host_map_start) {
1734 memset((void *)host_start, 0, host_map_start - host_start);
1735 }
1736}
1737
1738#ifdef TARGET_ARM
1739static int elf_is_fdpic(struct elfhdr *exec)
1740{
1741 return exec->e_ident[EI_OSABI] == ELFOSABI_ARM_FDPIC;
1742}
1743#else
1744
1745static int elf_is_fdpic(struct elfhdr *exec)
1746{
1747 return 0;
1748}
1749#endif
1750
1751static abi_ulong loader_build_fdpic_loadmap(struct image_info *info, abi_ulong sp)
1752{
1753 uint16_t n;
1754 struct elf32_fdpic_loadseg *loadsegs = info->loadsegs;
1755
1756
1757 n = info->nsegs;
1758 while (n--) {
1759 sp -= 12;
1760 put_user_u32(loadsegs[n].addr, sp+0);
1761 put_user_u32(loadsegs[n].p_vaddr, sp+4);
1762 put_user_u32(loadsegs[n].p_memsz, sp+8);
1763 }
1764
1765
1766 sp -= 4;
1767 put_user_u16(0, sp+0);
1768 put_user_u16(info->nsegs, sp+2);
1769
1770 info->personality = PER_LINUX_FDPIC;
1771 info->loadmap_addr = sp;
1772
1773 return sp;
1774}
1775
1776static abi_ulong create_elf_tables(abi_ulong p, int argc, int envc,
1777 struct elfhdr *exec,
1778 struct image_info *info,
1779 struct image_info *interp_info)
1780{
1781 abi_ulong sp;
1782 abi_ulong u_argc, u_argv, u_envp, u_auxv;
1783 int size;
1784 int i;
1785 abi_ulong u_rand_bytes;
1786 uint8_t k_rand_bytes[16];
1787 abi_ulong u_platform;
1788 const char *k_platform;
1789 const int n = sizeof(elf_addr_t);
1790
1791 sp = p;
1792
1793
1794 if (elf_is_fdpic(exec)) {
1795
1796 sp &= ~3;
1797 sp = loader_build_fdpic_loadmap(info, sp);
1798 info->other_info = interp_info;
1799 if (interp_info) {
1800 interp_info->other_info = info;
1801 sp = loader_build_fdpic_loadmap(interp_info, sp);
1802 info->interpreter_loadmap_addr = interp_info->loadmap_addr;
1803 info->interpreter_pt_dynamic_addr = interp_info->pt_dynamic_addr;
1804 } else {
1805 info->interpreter_loadmap_addr = 0;
1806 info->interpreter_pt_dynamic_addr = 0;
1807 }
1808 }
1809
1810 u_platform = 0;
1811 k_platform = ELF_PLATFORM;
1812 if (k_platform) {
1813 size_t len = strlen(k_platform) + 1;
1814 if (STACK_GROWS_DOWN) {
1815 sp -= (len + n - 1) & ~(n - 1);
1816 u_platform = sp;
1817
1818 memcpy_to_target(sp, k_platform, len);
1819 } else {
1820 memcpy_to_target(sp, k_platform, len);
1821 u_platform = sp;
1822 sp += len + 1;
1823 }
1824 }
1825
1826
1827
1828
1829 if (STACK_GROWS_DOWN) {
1830 sp = QEMU_ALIGN_DOWN(sp, 16);
1831 } else {
1832 sp = QEMU_ALIGN_UP(sp, 16);
1833 }
1834
1835
1836
1837
1838
1839 for (i = 0; i < 16; i++) {
1840 k_rand_bytes[i] = rand();
1841 }
1842 if (STACK_GROWS_DOWN) {
1843 sp -= 16;
1844 u_rand_bytes = sp;
1845
1846 memcpy_to_target(sp, k_rand_bytes, 16);
1847 } else {
1848 memcpy_to_target(sp, k_rand_bytes, 16);
1849 u_rand_bytes = sp;
1850 sp += 16;
1851 }
1852
1853 size = (DLINFO_ITEMS + 1) * 2;
1854 if (k_platform)
1855 size += 2;
1856#ifdef DLINFO_ARCH_ITEMS
1857 size += DLINFO_ARCH_ITEMS * 2;
1858#endif
1859#ifdef ELF_HWCAP2
1860 size += 2;
1861#endif
1862 info->auxv_len = size * n;
1863
1864 size += envc + argc + 2;
1865 size += 1;
1866 size *= n;
1867
1868
1869 if (STACK_GROWS_DOWN) {
1870 u_argc = QEMU_ALIGN_DOWN(sp - size, STACK_ALIGNMENT);
1871 sp = u_argc;
1872 } else {
1873 u_argc = sp;
1874 sp = QEMU_ALIGN_UP(sp + size, STACK_ALIGNMENT);
1875 }
1876
1877 u_argv = u_argc + n;
1878 u_envp = u_argv + (argc + 1) * n;
1879 u_auxv = u_envp + (envc + 1) * n;
1880 info->saved_auxv = u_auxv;
1881 info->arg_start = u_argv;
1882 info->arg_end = u_argv + argc * n;
1883
1884
1885
1886
1887#define NEW_AUX_ENT(id, val) do { \
1888 put_user_ual(id, u_auxv); u_auxv += n; \
1889 put_user_ual(val, u_auxv); u_auxv += n; \
1890 } while(0)
1891
1892#ifdef ARCH_DLINFO
1893
1894
1895
1896
1897 ARCH_DLINFO;
1898#endif
1899
1900
1901
1902 NEW_AUX_ENT(AT_PHDR, (abi_ulong)(info->load_addr + exec->e_phoff));
1903 NEW_AUX_ENT(AT_PHENT, (abi_ulong)(sizeof (struct elf_phdr)));
1904 NEW_AUX_ENT(AT_PHNUM, (abi_ulong)(exec->e_phnum));
1905 if ((info->alignment & ~qemu_host_page_mask) != 0) {
1906
1907 NEW_AUX_ENT(AT_PAGESZ, (abi_ulong)(TARGET_PAGE_SIZE));
1908 } else {
1909 NEW_AUX_ENT(AT_PAGESZ, (abi_ulong)(MAX(TARGET_PAGE_SIZE,
1910 qemu_host_page_size)));
1911 }
1912 NEW_AUX_ENT(AT_BASE, (abi_ulong)(interp_info ? interp_info->load_addr : 0));
1913 NEW_AUX_ENT(AT_FLAGS, (abi_ulong)0);
1914 NEW_AUX_ENT(AT_ENTRY, info->entry);
1915 NEW_AUX_ENT(AT_UID, (abi_ulong) getuid());
1916 NEW_AUX_ENT(AT_EUID, (abi_ulong) geteuid());
1917 NEW_AUX_ENT(AT_GID, (abi_ulong) getgid());
1918 NEW_AUX_ENT(AT_EGID, (abi_ulong) getegid());
1919 NEW_AUX_ENT(AT_HWCAP, (abi_ulong) ELF_HWCAP);
1920 NEW_AUX_ENT(AT_CLKTCK, (abi_ulong) sysconf(_SC_CLK_TCK));
1921 NEW_AUX_ENT(AT_RANDOM, (abi_ulong) u_rand_bytes);
1922 NEW_AUX_ENT(AT_SECURE, (abi_ulong) qemu_getauxval(AT_SECURE));
1923
1924#ifdef ELF_HWCAP2
1925 NEW_AUX_ENT(AT_HWCAP2, (abi_ulong) ELF_HWCAP2);
1926#endif
1927
1928 if (u_platform) {
1929 NEW_AUX_ENT(AT_PLATFORM, u_platform);
1930 }
1931 NEW_AUX_ENT (AT_NULL, 0);
1932#undef NEW_AUX_ENT
1933
1934
1935
1936
1937 assert(info->auxv_len == u_auxv - info->saved_auxv);
1938
1939 put_user_ual(argc, u_argc);
1940
1941 p = info->arg_strings;
1942 for (i = 0; i < argc; ++i) {
1943 put_user_ual(p, u_argv);
1944 u_argv += n;
1945 p += target_strlen(p) + 1;
1946 }
1947 put_user_ual(0, u_argv);
1948
1949 p = info->env_strings;
1950 for (i = 0; i < envc; ++i) {
1951 put_user_ual(p, u_envp);
1952 u_envp += n;
1953 p += target_strlen(p) + 1;
1954 }
1955 put_user_ual(0, u_envp);
1956
1957 return sp;
1958}
1959
1960unsigned long init_guest_space(unsigned long host_start,
1961 unsigned long host_size,
1962 unsigned long guest_start,
1963 bool fixed)
1964{
1965 unsigned long current_start, aligned_start;
1966 int flags;
1967
1968 assert(host_start || host_size);
1969
1970
1971
1972 if (host_start && !host_size) {
1973#if defined(TARGET_ARM) && !defined(TARGET_AARCH64)
1974 if (init_guest_commpage(host_start, host_size) != 1) {
1975 return (unsigned long)-1;
1976 }
1977#endif
1978 return host_start;
1979 }
1980
1981
1982 current_start = host_start & qemu_host_page_mask;
1983 flags = MAP_ANONYMOUS | MAP_PRIVATE | MAP_NORESERVE;
1984 if (fixed) {
1985 flags |= MAP_FIXED;
1986 }
1987
1988
1989
1990
1991#if defined(TARGET_ARM) && !defined(TARGET_AARCH64)
1992
1993
1994
1995
1996
1997 if (!host_start) {
1998 unsigned long guest_full_size, host_full_size, real_start;
1999
2000 guest_full_size =
2001 (0xffff0f00 & qemu_host_page_mask) + qemu_host_page_size;
2002 host_full_size = guest_full_size - guest_start;
2003 real_start = (unsigned long)
2004 mmap(NULL, host_full_size, PROT_NONE, flags, -1, 0);
2005 if (real_start == (unsigned long)-1) {
2006 if (host_size < host_full_size - qemu_host_page_size) {
2007
2008
2009
2010
2011
2012
2013 goto naive;
2014 }
2015 return (unsigned long)-1;
2016 }
2017 munmap((void *)real_start, host_full_size);
2018 if (real_start & ~qemu_host_page_mask) {
2019
2020
2021
2022 unsigned long real_size = host_full_size + qemu_host_page_size;
2023 real_start = (unsigned long)
2024 mmap(NULL, real_size, PROT_NONE, flags, -1, 0);
2025 if (real_start == (unsigned long)-1) {
2026 if (host_size < host_full_size - qemu_host_page_size) {
2027 goto naive;
2028 }
2029 return (unsigned long)-1;
2030 }
2031 munmap((void *)real_start, real_size);
2032 real_start = HOST_PAGE_ALIGN(real_start);
2033 }
2034 current_start = real_start;
2035 }
2036 naive:
2037#endif
2038
2039 while (1) {
2040 unsigned long real_start, real_size, aligned_size;
2041 aligned_size = real_size = host_size;
2042
2043
2044
2045
2046
2047 real_start = (unsigned long)
2048 mmap((void *)current_start, host_size, PROT_NONE, flags, -1, 0);
2049 if (real_start == (unsigned long)-1) {
2050 return (unsigned long)-1;
2051 }
2052
2053
2054 if (host_start && real_start != current_start) {
2055 goto try_again;
2056 }
2057
2058
2059 if (real_start & ~qemu_host_page_mask) {
2060
2061
2062
2063
2064
2065
2066
2067
2068
2069
2070
2071
2072
2073
2074
2075
2076
2077
2078
2079
2080 munmap((void *)real_start, host_size);
2081 real_size = aligned_size + qemu_host_page_size;
2082 real_start = (unsigned long)
2083 mmap((void *)real_start, real_size, PROT_NONE, flags, -1, 0);
2084 if (real_start == (unsigned long)-1) {
2085 return (unsigned long)-1;
2086 }
2087 aligned_start = HOST_PAGE_ALIGN(real_start);
2088 } else {
2089 aligned_start = real_start;
2090 }
2091
2092#if defined(TARGET_ARM) && !defined(TARGET_AARCH64)
2093
2094 int valid = init_guest_commpage(aligned_start - guest_start,
2095 aligned_size + guest_start);
2096 if (valid == -1) {
2097 munmap((void *)real_start, real_size);
2098 return (unsigned long)-1;
2099 } else if (valid == 0) {
2100 goto try_again;
2101 }
2102#endif
2103
2104
2105
2106
2107 break;
2108
2109 try_again:
2110
2111
2112
2113
2114
2115
2116
2117
2118
2119
2120
2121
2122
2123 munmap((void *)real_start, real_size);
2124 current_start += qemu_host_page_size;
2125 if (host_start == current_start) {
2126
2127
2128
2129 return (unsigned long)-1;
2130 }
2131 }
2132
2133 qemu_log_mask(CPU_LOG_PAGE, "Reserved 0x%lx bytes of guest address space\n", host_size);
2134
2135 return aligned_start;
2136}
2137
2138static void probe_guest_base(const char *image_name,
2139 abi_ulong loaddr, abi_ulong hiaddr)
2140{
2141
2142
2143
2144
2145 const char *errmsg;
2146 if (!have_guest_base && !reserved_va) {
2147 unsigned long host_start, real_start, host_size;
2148
2149
2150 loaddr &= qemu_host_page_mask;
2151 hiaddr = HOST_PAGE_ALIGN(hiaddr);
2152
2153 if (loaddr < mmap_min_addr) {
2154 host_start = HOST_PAGE_ALIGN(mmap_min_addr);
2155 } else {
2156 host_start = loaddr;
2157 if (host_start != loaddr) {
2158 errmsg = "Address overflow loading ELF binary";
2159 goto exit_errmsg;
2160 }
2161 }
2162 host_size = hiaddr - loaddr;
2163
2164
2165
2166
2167 real_start = init_guest_space(host_start, host_size, loaddr, false);
2168 if (real_start == (unsigned long)-1) {
2169 errmsg = "Unable to find space for application";
2170 goto exit_errmsg;
2171 }
2172 guest_base = real_start - loaddr;
2173
2174 qemu_log_mask(CPU_LOG_PAGE, "Relocating guest address space from 0x"
2175 TARGET_ABI_FMT_lx " to 0x%lx\n",
2176 loaddr, real_start);
2177 }
2178 return;
2179
2180exit_errmsg:
2181 fprintf(stderr, "%s: %s\n", image_name, errmsg);
2182 exit(-1);
2183}
2184
2185
2186
2187
2188
2189
2190
2191
2192
2193
2194
2195
2196
2197
2198static void load_elf_image(const char *image_name, int image_fd,
2199 struct image_info *info, char **pinterp_name,
2200 char bprm_buf[BPRM_BUF_SIZE])
2201{
2202 struct elfhdr *ehdr = (struct elfhdr *)bprm_buf;
2203 struct elf_phdr *phdr;
2204 abi_ulong load_addr, load_bias, loaddr, hiaddr, error;
2205 int i, retval;
2206 const char *errmsg;
2207
2208
2209 errmsg = "Invalid ELF image for this architecture";
2210 if (!elf_check_ident(ehdr)) {
2211 goto exit_errmsg;
2212 }
2213 bswap_ehdr(ehdr);
2214 if (!elf_check_ehdr(ehdr)) {
2215 goto exit_errmsg;
2216 }
2217
2218 i = ehdr->e_phnum * sizeof(struct elf_phdr);
2219 if (ehdr->e_phoff + i <= BPRM_BUF_SIZE) {
2220 phdr = (struct elf_phdr *)(bprm_buf + ehdr->e_phoff);
2221 } else {
2222 phdr = (struct elf_phdr *) alloca(i);
2223 retval = pread(image_fd, phdr, i, ehdr->e_phoff);
2224 if (retval != i) {
2225 goto exit_read;
2226 }
2227 }
2228 bswap_phdr(phdr, ehdr->e_phnum);
2229
2230 info->nsegs = 0;
2231 info->pt_dynamic_addr = 0;
2232
2233 mmap_lock();
2234
2235
2236
2237 loaddr = -1, hiaddr = 0;
2238 info->alignment = 0;
2239 for (i = 0; i < ehdr->e_phnum; ++i) {
2240 if (phdr[i].p_type == PT_LOAD) {
2241 abi_ulong a = phdr[i].p_vaddr - phdr[i].p_offset;
2242 if (a < loaddr) {
2243 loaddr = a;
2244 }
2245 a = phdr[i].p_vaddr + phdr[i].p_memsz;
2246 if (a > hiaddr) {
2247 hiaddr = a;
2248 }
2249 ++info->nsegs;
2250 info->alignment |= phdr[i].p_align;
2251 }
2252 }
2253
2254 load_addr = loaddr;
2255 if (ehdr->e_type == ET_DYN) {
2256
2257
2258
2259
2260
2261 load_addr = target_mmap(loaddr, hiaddr - loaddr, PROT_NONE,
2262 MAP_PRIVATE | MAP_ANON | MAP_NORESERVE,
2263 -1, 0);
2264 if (load_addr == -1) {
2265 goto exit_perror;
2266 }
2267 } else if (pinterp_name != NULL) {
2268
2269
2270
2271 probe_guest_base(image_name, loaddr, hiaddr);
2272 }
2273 load_bias = load_addr - loaddr;
2274
2275 if (elf_is_fdpic(ehdr)) {
2276 struct elf32_fdpic_loadseg *loadsegs = info->loadsegs =
2277 g_malloc(sizeof(*loadsegs) * info->nsegs);
2278
2279 for (i = 0; i < ehdr->e_phnum; ++i) {
2280 switch (phdr[i].p_type) {
2281 case PT_DYNAMIC:
2282 info->pt_dynamic_addr = phdr[i].p_vaddr + load_bias;
2283 break;
2284 case PT_LOAD:
2285 loadsegs->addr = phdr[i].p_vaddr + load_bias;
2286 loadsegs->p_vaddr = phdr[i].p_vaddr;
2287 loadsegs->p_memsz = phdr[i].p_memsz;
2288 ++loadsegs;
2289 break;
2290 }
2291 }
2292 }
2293
2294 info->load_bias = load_bias;
2295 info->load_addr = load_addr;
2296 info->entry = ehdr->e_entry + load_bias;
2297 info->start_code = -1;
2298 info->end_code = 0;
2299 info->start_data = -1;
2300 info->end_data = 0;
2301 info->brk = 0;
2302 info->elf_flags = ehdr->e_flags;
2303
2304 for (i = 0; i < ehdr->e_phnum; i++) {
2305 struct elf_phdr *eppnt = phdr + i;
2306 if (eppnt->p_type == PT_LOAD) {
2307 abi_ulong vaddr, vaddr_po, vaddr_ps, vaddr_ef, vaddr_em, vaddr_len;
2308 int elf_prot = 0;
2309
2310 if (eppnt->p_flags & PF_R) elf_prot = PROT_READ;
2311 if (eppnt->p_flags & PF_W) elf_prot |= PROT_WRITE;
2312 if (eppnt->p_flags & PF_X) elf_prot |= PROT_EXEC;
2313
2314 vaddr = load_bias + eppnt->p_vaddr;
2315 vaddr_po = TARGET_ELF_PAGEOFFSET(vaddr);
2316 vaddr_ps = TARGET_ELF_PAGESTART(vaddr);
2317 vaddr_len = TARGET_ELF_PAGELENGTH(eppnt->p_filesz + vaddr_po);
2318
2319 error = target_mmap(vaddr_ps, vaddr_len,
2320 elf_prot, MAP_PRIVATE | MAP_FIXED,
2321 image_fd, eppnt->p_offset - vaddr_po);
2322 if (error == -1) {
2323 goto exit_perror;
2324 }
2325
2326 vaddr_ef = vaddr + eppnt->p_filesz;
2327 vaddr_em = vaddr + eppnt->p_memsz;
2328
2329
2330 if (vaddr_ef < vaddr_em) {
2331 zero_bss(vaddr_ef, vaddr_em, elf_prot);
2332 }
2333
2334
2335 if (elf_prot & PROT_EXEC) {
2336 if (vaddr < info->start_code) {
2337 info->start_code = vaddr;
2338 }
2339 if (vaddr_ef > info->end_code) {
2340 info->end_code = vaddr_ef;
2341 }
2342 }
2343 if (elf_prot & PROT_WRITE) {
2344 if (vaddr < info->start_data) {
2345 info->start_data = vaddr;
2346 }
2347 if (vaddr_ef > info->end_data) {
2348 info->end_data = vaddr_ef;
2349 }
2350 if (vaddr_em > info->brk) {
2351 info->brk = vaddr_em;
2352 }
2353 }
2354 } else if (eppnt->p_type == PT_INTERP && pinterp_name) {
2355 char *interp_name;
2356
2357 if (*pinterp_name) {
2358 errmsg = "Multiple PT_INTERP entries";
2359 goto exit_errmsg;
2360 }
2361 interp_name = malloc(eppnt->p_filesz);
2362 if (!interp_name) {
2363 goto exit_perror;
2364 }
2365
2366 if (eppnt->p_offset + eppnt->p_filesz <= BPRM_BUF_SIZE) {
2367 memcpy(interp_name, bprm_buf + eppnt->p_offset,
2368 eppnt->p_filesz);
2369 } else {
2370 retval = pread(image_fd, interp_name, eppnt->p_filesz,
2371 eppnt->p_offset);
2372 if (retval != eppnt->p_filesz) {
2373 goto exit_perror;
2374 }
2375 }
2376 if (interp_name[eppnt->p_filesz - 1] != 0) {
2377 errmsg = "Invalid PT_INTERP entry";
2378 goto exit_errmsg;
2379 }
2380 *pinterp_name = interp_name;
2381#ifdef TARGET_MIPS
2382 } else if (eppnt->p_type == PT_MIPS_ABIFLAGS) {
2383 Mips_elf_abiflags_v0 abiflags;
2384 if (eppnt->p_filesz < sizeof(Mips_elf_abiflags_v0)) {
2385 errmsg = "Invalid PT_MIPS_ABIFLAGS entry";
2386 goto exit_errmsg;
2387 }
2388 if (eppnt->p_offset + eppnt->p_filesz <= BPRM_BUF_SIZE) {
2389 memcpy(&abiflags, bprm_buf + eppnt->p_offset,
2390 sizeof(Mips_elf_abiflags_v0));
2391 } else {
2392 retval = pread(image_fd, &abiflags, sizeof(Mips_elf_abiflags_v0),
2393 eppnt->p_offset);
2394 if (retval != sizeof(Mips_elf_abiflags_v0)) {
2395 goto exit_perror;
2396 }
2397 }
2398 bswap_mips_abiflags(&abiflags);
2399 info->fp_abi = abiflags.fp_abi;
2400#endif
2401 }
2402 }
2403
2404 if (info->end_data == 0) {
2405 info->start_data = info->end_code;
2406 info->end_data = info->end_code;
2407 info->brk = info->end_code;
2408 }
2409
2410 if (qemu_log_enabled()) {
2411 load_symbols(ehdr, image_fd, load_bias);
2412 }
2413
2414 mmap_unlock();
2415
2416 close(image_fd);
2417 return;
2418
2419 exit_read:
2420 if (retval >= 0) {
2421 errmsg = "Incomplete read of file header";
2422 goto exit_errmsg;
2423 }
2424 exit_perror:
2425 errmsg = strerror(errno);
2426 exit_errmsg:
2427 fprintf(stderr, "%s: %s\n", image_name, errmsg);
2428 exit(-1);
2429}
2430
2431static void load_elf_interp(const char *filename, struct image_info *info,
2432 char bprm_buf[BPRM_BUF_SIZE])
2433{
2434 int fd, retval;
2435
2436 fd = open(path(filename), O_RDONLY);
2437 if (fd < 0) {
2438 goto exit_perror;
2439 }
2440
2441 retval = read(fd, bprm_buf, BPRM_BUF_SIZE);
2442 if (retval < 0) {
2443 goto exit_perror;
2444 }
2445 if (retval < BPRM_BUF_SIZE) {
2446 memset(bprm_buf + retval, 0, BPRM_BUF_SIZE - retval);
2447 }
2448
2449 load_elf_image(filename, fd, info, NULL, bprm_buf);
2450 return;
2451
2452 exit_perror:
2453 fprintf(stderr, "%s: %s\n", filename, strerror(errno));
2454 exit(-1);
2455}
2456
2457static int symfind(const void *s0, const void *s1)
2458{
2459 target_ulong addr = *(target_ulong *)s0;
2460 struct elf_sym *sym = (struct elf_sym *)s1;
2461 int result = 0;
2462 if (addr < sym->st_value) {
2463 result = -1;
2464 } else if (addr >= sym->st_value + sym->st_size) {
2465 result = 1;
2466 }
2467 return result;
2468}
2469
2470static const char *lookup_symbolxx(struct syminfo *s, target_ulong orig_addr)
2471{
2472#if ELF_CLASS == ELFCLASS32
2473 struct elf_sym *syms = s->disas_symtab.elf32;
2474#else
2475 struct elf_sym *syms = s->disas_symtab.elf64;
2476#endif
2477
2478
2479 struct elf_sym *sym;
2480
2481 sym = bsearch(&orig_addr, syms, s->disas_num_syms, sizeof(*syms), symfind);
2482 if (sym != NULL) {
2483 return s->disas_strtab + sym->st_name;
2484 }
2485
2486 return "";
2487}
2488
2489
2490static int symcmp(const void *s0, const void *s1)
2491{
2492 struct elf_sym *sym0 = (struct elf_sym *)s0;
2493 struct elf_sym *sym1 = (struct elf_sym *)s1;
2494 return (sym0->st_value < sym1->st_value)
2495 ? -1
2496 : ((sym0->st_value > sym1->st_value) ? 1 : 0);
2497}
2498
2499
2500static void load_symbols(struct elfhdr *hdr, int fd, abi_ulong load_bias)
2501{
2502 int i, shnum, nsyms, sym_idx = 0, str_idx = 0;
2503 uint64_t segsz;
2504 struct elf_shdr *shdr;
2505 char *strings = NULL;
2506 struct syminfo *s = NULL;
2507 struct elf_sym *new_syms, *syms = NULL;
2508
2509 shnum = hdr->e_shnum;
2510 i = shnum * sizeof(struct elf_shdr);
2511 shdr = (struct elf_shdr *)alloca(i);
2512 if (pread(fd, shdr, i, hdr->e_shoff) != i) {
2513 return;
2514 }
2515
2516 bswap_shdr(shdr, shnum);
2517 for (i = 0; i < shnum; ++i) {
2518 if (shdr[i].sh_type == SHT_SYMTAB) {
2519 sym_idx = i;
2520 str_idx = shdr[i].sh_link;
2521 goto found;
2522 }
2523 }
2524
2525
2526 return;
2527
2528 found:
2529
2530 s = g_try_new(struct syminfo, 1);
2531 if (!s) {
2532 goto give_up;
2533 }
2534
2535 segsz = shdr[str_idx].sh_size;
2536 s->disas_strtab = strings = g_try_malloc(segsz);
2537 if (!strings ||
2538 pread(fd, strings, segsz, shdr[str_idx].sh_offset) != segsz) {
2539 goto give_up;
2540 }
2541
2542 segsz = shdr[sym_idx].sh_size;
2543 syms = g_try_malloc(segsz);
2544 if (!syms || pread(fd, syms, segsz, shdr[sym_idx].sh_offset) != segsz) {
2545 goto give_up;
2546 }
2547
2548 if (segsz / sizeof(struct elf_sym) > INT_MAX) {
2549
2550
2551
2552 goto give_up;
2553 }
2554 nsyms = segsz / sizeof(struct elf_sym);
2555 for (i = 0; i < nsyms; ) {
2556 bswap_sym(syms + i);
2557
2558 if (syms[i].st_shndx == SHN_UNDEF
2559 || syms[i].st_shndx >= SHN_LORESERVE
2560 || ELF_ST_TYPE(syms[i].st_info) != STT_FUNC) {
2561 if (i < --nsyms) {
2562 syms[i] = syms[nsyms];
2563 }
2564 } else {
2565#if defined(TARGET_ARM) || defined (TARGET_MIPS)
2566
2567 syms[i].st_value &= ~(target_ulong)1;
2568#endif
2569 syms[i].st_value += load_bias;
2570 i++;
2571 }
2572 }
2573
2574
2575 if (nsyms == 0) {
2576 goto give_up;
2577 }
2578
2579
2580
2581
2582
2583 new_syms = g_try_renew(struct elf_sym, syms, nsyms);
2584 if (new_syms == NULL) {
2585 goto give_up;
2586 }
2587 syms = new_syms;
2588
2589 qsort(syms, nsyms, sizeof(*syms), symcmp);
2590
2591 s->disas_num_syms = nsyms;
2592#if ELF_CLASS == ELFCLASS32
2593 s->disas_symtab.elf32 = syms;
2594#else
2595 s->disas_symtab.elf64 = syms;
2596#endif
2597 s->lookup_symbol = lookup_symbolxx;
2598 s->next = syminfos;
2599 syminfos = s;
2600
2601 return;
2602
2603give_up:
2604 g_free(s);
2605 g_free(strings);
2606 g_free(syms);
2607}
2608
2609uint32_t get_elf_eflags(int fd)
2610{
2611 struct elfhdr ehdr;
2612 off_t offset;
2613 int ret;
2614
2615
2616 offset = lseek(fd, 0, SEEK_SET);
2617 if (offset == (off_t) -1) {
2618 return 0;
2619 }
2620 ret = read(fd, &ehdr, sizeof(ehdr));
2621 if (ret < sizeof(ehdr)) {
2622 return 0;
2623 }
2624 offset = lseek(fd, offset, SEEK_SET);
2625 if (offset == (off_t) -1) {
2626 return 0;
2627 }
2628
2629
2630 if (!elf_check_ident(&ehdr)) {
2631 return 0;
2632 }
2633
2634
2635 bswap_ehdr(&ehdr);
2636 if (!elf_check_ehdr(&ehdr)) {
2637 return 0;
2638 }
2639
2640
2641 return ehdr.e_flags;
2642}
2643
2644int load_elf_binary(struct linux_binprm *bprm, struct image_info *info)
2645{
2646 struct image_info interp_info;
2647 struct elfhdr elf_ex;
2648 char *elf_interpreter = NULL;
2649 char *scratch;
2650
2651 info->start_mmap = (abi_ulong)ELF_START_MMAP;
2652
2653 load_elf_image(bprm->filename, bprm->fd, info,
2654 &elf_interpreter, bprm->buf);
2655
2656
2657
2658
2659 elf_ex = *(struct elfhdr *)bprm->buf;
2660
2661
2662
2663 bprm->p = setup_arg_pages(bprm, info);
2664
2665 scratch = g_new0(char, TARGET_PAGE_SIZE);
2666 if (STACK_GROWS_DOWN) {
2667 bprm->p = copy_elf_strings(1, &bprm->filename, scratch,
2668 bprm->p, info->stack_limit);
2669 info->file_string = bprm->p;
2670 bprm->p = copy_elf_strings(bprm->envc, bprm->envp, scratch,
2671 bprm->p, info->stack_limit);
2672 info->env_strings = bprm->p;
2673 bprm->p = copy_elf_strings(bprm->argc, bprm->argv, scratch,
2674 bprm->p, info->stack_limit);
2675 info->arg_strings = bprm->p;
2676 } else {
2677 info->arg_strings = bprm->p;
2678 bprm->p = copy_elf_strings(bprm->argc, bprm->argv, scratch,
2679 bprm->p, info->stack_limit);
2680 info->env_strings = bprm->p;
2681 bprm->p = copy_elf_strings(bprm->envc, bprm->envp, scratch,
2682 bprm->p, info->stack_limit);
2683 info->file_string = bprm->p;
2684 bprm->p = copy_elf_strings(1, &bprm->filename, scratch,
2685 bprm->p, info->stack_limit);
2686 }
2687
2688 g_free(scratch);
2689
2690 if (!bprm->p) {
2691 fprintf(stderr, "%s: %s\n", bprm->filename, strerror(E2BIG));
2692 exit(-1);
2693 }
2694
2695 if (elf_interpreter) {
2696 load_elf_interp(elf_interpreter, &interp_info, bprm->buf);
2697
2698
2699
2700
2701 if (strcmp(elf_interpreter, "/usr/lib/libc.so.1") == 0
2702 || strcmp(elf_interpreter, "/usr/lib/ld.so.1") == 0) {
2703 info->personality = PER_SVR4;
2704
2705
2706
2707
2708
2709 target_mmap(0, qemu_host_page_size, PROT_READ | PROT_EXEC,
2710 MAP_FIXED | MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
2711 }
2712#ifdef TARGET_MIPS
2713 info->interp_fp_abi = interp_info.fp_abi;
2714#endif
2715 }
2716
2717 bprm->p = create_elf_tables(bprm->p, bprm->argc, bprm->envc, &elf_ex,
2718 info, (elf_interpreter ? &interp_info : NULL));
2719 info->start_stack = bprm->p;
2720
2721
2722
2723
2724
2725 if (elf_interpreter) {
2726 info->load_bias = interp_info.load_bias;
2727 info->entry = interp_info.entry;
2728 free(elf_interpreter);
2729 }
2730
2731#ifdef USE_ELF_CORE_DUMP
2732 bprm->core_dump = &elf_core_dump;
2733#endif
2734
2735 return 0;
2736}
2737
2738#ifdef USE_ELF_CORE_DUMP
2739
2740
2741
2742
2743
2744
2745
2746
2747
2748
2749
2750
2751
2752
2753
2754
2755
2756
2757
2758
2759
2760
2761
2762
2763
2764
2765
2766
2767
2768
2769
2770
2771
2772
2773
2774
2775
2776
2777
2778
2779struct memelfnote {
2780 const char *name;
2781 size_t namesz;
2782 size_t namesz_rounded;
2783 int type;
2784 size_t datasz;
2785 size_t datasz_rounded;
2786 void *data;
2787 size_t notesz;
2788};
2789
2790struct target_elf_siginfo {
2791 abi_int si_signo;
2792 abi_int si_code;
2793 abi_int si_errno;
2794};
2795
2796struct target_elf_prstatus {
2797 struct target_elf_siginfo pr_info;
2798 abi_short pr_cursig;
2799 abi_ulong pr_sigpend;
2800 abi_ulong pr_sighold;
2801 target_pid_t pr_pid;
2802 target_pid_t pr_ppid;
2803 target_pid_t pr_pgrp;
2804 target_pid_t pr_sid;
2805 struct target_timeval pr_utime;
2806 struct target_timeval pr_stime;
2807 struct target_timeval pr_cutime;
2808 struct target_timeval pr_cstime;
2809 target_elf_gregset_t pr_reg;
2810 abi_int pr_fpvalid;
2811};
2812
2813#define ELF_PRARGSZ (80)
2814
2815struct target_elf_prpsinfo {
2816 char pr_state;
2817 char pr_sname;
2818 char pr_zomb;
2819 char pr_nice;
2820 abi_ulong pr_flag;
2821 target_uid_t pr_uid;
2822 target_gid_t pr_gid;
2823 target_pid_t pr_pid, pr_ppid, pr_pgrp, pr_sid;
2824
2825 char pr_fname[16];
2826 char pr_psargs[ELF_PRARGSZ];
2827};
2828
2829
2830struct elf_thread_status {
2831 QTAILQ_ENTRY(elf_thread_status) ets_link;
2832 struct target_elf_prstatus prstatus;
2833#if 0
2834 elf_fpregset_t fpu;
2835 struct task_struct *thread;
2836 elf_fpxregset_t xfpu;
2837#endif
2838 struct memelfnote notes[1];
2839 int num_notes;
2840};
2841
2842struct elf_note_info {
2843 struct memelfnote *notes;
2844 struct target_elf_prstatus *prstatus;
2845 struct target_elf_prpsinfo *psinfo;
2846
2847 QTAILQ_HEAD(thread_list_head, elf_thread_status) thread_list;
2848#if 0
2849
2850
2851
2852
2853 elf_fpregset_t *fpu;
2854 elf_fpxregset_t *xfpu;
2855 int thread_status_size;
2856#endif
2857 int notes_size;
2858 int numnote;
2859};
2860
2861struct vm_area_struct {
2862 target_ulong vma_start;
2863 target_ulong vma_end;
2864 abi_ulong vma_flags;
2865 QTAILQ_ENTRY(vm_area_struct) vma_link;
2866};
2867
2868struct mm_struct {
2869 QTAILQ_HEAD(, vm_area_struct) mm_mmap;
2870 int mm_count;
2871};
2872
2873static struct mm_struct *vma_init(void);
2874static void vma_delete(struct mm_struct *);
2875static int vma_add_mapping(struct mm_struct *, target_ulong,
2876 target_ulong, abi_ulong);
2877static int vma_get_mapping_count(const struct mm_struct *);
2878static struct vm_area_struct *vma_first(const struct mm_struct *);
2879static struct vm_area_struct *vma_next(struct vm_area_struct *);
2880static abi_ulong vma_dump_size(const struct vm_area_struct *);
2881static int vma_walker(void *priv, target_ulong start, target_ulong end,
2882 unsigned long flags);
2883
2884static void fill_elf_header(struct elfhdr *, int, uint16_t, uint32_t);
2885static void fill_note(struct memelfnote *, const char *, int,
2886 unsigned int, void *);
2887static void fill_prstatus(struct target_elf_prstatus *, const TaskState *, int);
2888static int fill_psinfo(struct target_elf_prpsinfo *, const TaskState *);
2889static void fill_auxv_note(struct memelfnote *, const TaskState *);
2890static void fill_elf_note_phdr(struct elf_phdr *, int, off_t);
2891static size_t note_size(const struct memelfnote *);
2892static void free_note_info(struct elf_note_info *);
2893static int fill_note_info(struct elf_note_info *, long, const CPUArchState *);
2894static void fill_thread_info(struct elf_note_info *, const CPUArchState *);
2895static int core_dump_filename(const TaskState *, char *, size_t);
2896
2897static int dump_write(int, const void *, size_t);
2898static int write_note(struct memelfnote *, int);
2899static int write_note_info(struct elf_note_info *, int);
2900
2901#ifdef BSWAP_NEEDED
2902static void bswap_prstatus(struct target_elf_prstatus *prstatus)
2903{
2904 prstatus->pr_info.si_signo = tswap32(prstatus->pr_info.si_signo);
2905 prstatus->pr_info.si_code = tswap32(prstatus->pr_info.si_code);
2906 prstatus->pr_info.si_errno = tswap32(prstatus->pr_info.si_errno);
2907 prstatus->pr_cursig = tswap16(prstatus->pr_cursig);
2908 prstatus->pr_sigpend = tswapal(prstatus->pr_sigpend);
2909 prstatus->pr_sighold = tswapal(prstatus->pr_sighold);
2910 prstatus->pr_pid = tswap32(prstatus->pr_pid);
2911 prstatus->pr_ppid = tswap32(prstatus->pr_ppid);
2912 prstatus->pr_pgrp = tswap32(prstatus->pr_pgrp);
2913 prstatus->pr_sid = tswap32(prstatus->pr_sid);
2914
2915
2916 prstatus->pr_fpvalid = tswap32(prstatus->pr_fpvalid);
2917}
2918
2919static void bswap_psinfo(struct target_elf_prpsinfo *psinfo)
2920{
2921 psinfo->pr_flag = tswapal(psinfo->pr_flag);
2922 psinfo->pr_uid = tswap16(psinfo->pr_uid);
2923 psinfo->pr_gid = tswap16(psinfo->pr_gid);
2924 psinfo->pr_pid = tswap32(psinfo->pr_pid);
2925 psinfo->pr_ppid = tswap32(psinfo->pr_ppid);
2926 psinfo->pr_pgrp = tswap32(psinfo->pr_pgrp);
2927 psinfo->pr_sid = tswap32(psinfo->pr_sid);
2928}
2929
2930static void bswap_note(struct elf_note *en)
2931{
2932 bswap32s(&en->n_namesz);
2933 bswap32s(&en->n_descsz);
2934 bswap32s(&en->n_type);
2935}
2936#else
2937static inline void bswap_prstatus(struct target_elf_prstatus *p) { }
2938static inline void bswap_psinfo(struct target_elf_prpsinfo *p) {}
2939static inline void bswap_note(struct elf_note *en) { }
2940#endif
2941
2942
2943
2944
2945
2946
2947
2948
2949static struct mm_struct *vma_init(void)
2950{
2951 struct mm_struct *mm;
2952
2953 if ((mm = g_malloc(sizeof (*mm))) == NULL)
2954 return (NULL);
2955
2956 mm->mm_count = 0;
2957 QTAILQ_INIT(&mm->mm_mmap);
2958
2959 return (mm);
2960}
2961
2962static void vma_delete(struct mm_struct *mm)
2963{
2964 struct vm_area_struct *vma;
2965
2966 while ((vma = vma_first(mm)) != NULL) {
2967 QTAILQ_REMOVE(&mm->mm_mmap, vma, vma_link);
2968 g_free(vma);
2969 }
2970 g_free(mm);
2971}
2972
2973static int vma_add_mapping(struct mm_struct *mm, target_ulong start,
2974 target_ulong end, abi_ulong flags)
2975{
2976 struct vm_area_struct *vma;
2977
2978 if ((vma = g_malloc0(sizeof (*vma))) == NULL)
2979 return (-1);
2980
2981 vma->vma_start = start;
2982 vma->vma_end = end;
2983 vma->vma_flags = flags;
2984
2985 QTAILQ_INSERT_TAIL(&mm->mm_mmap, vma, vma_link);
2986 mm->mm_count++;
2987
2988 return (0);
2989}
2990
2991static struct vm_area_struct *vma_first(const struct mm_struct *mm)
2992{
2993 return (QTAILQ_FIRST(&mm->mm_mmap));
2994}
2995
2996static struct vm_area_struct *vma_next(struct vm_area_struct *vma)
2997{
2998 return (QTAILQ_NEXT(vma, vma_link));
2999}
3000
3001static int vma_get_mapping_count(const struct mm_struct *mm)
3002{
3003 return (mm->mm_count);
3004}
3005
3006
3007
3008
3009static abi_ulong vma_dump_size(const struct vm_area_struct *vma)
3010{
3011
3012 if (!access_ok(VERIFY_READ, vma->vma_start, TARGET_PAGE_SIZE))
3013 return (0);
3014
3015
3016
3017
3018
3019
3020
3021
3022
3023 if (vma->vma_flags & PROT_EXEC) {
3024 char page[TARGET_PAGE_SIZE];
3025
3026 copy_from_user(page, vma->vma_start, sizeof (page));
3027 if ((page[EI_MAG0] == ELFMAG0) &&
3028 (page[EI_MAG1] == ELFMAG1) &&
3029 (page[EI_MAG2] == ELFMAG2) &&
3030 (page[EI_MAG3] == ELFMAG3)) {
3031
3032
3033
3034
3035 return (0);
3036 }
3037 }
3038
3039 return (vma->vma_end - vma->vma_start);
3040}
3041
3042static int vma_walker(void *priv, target_ulong start, target_ulong end,
3043 unsigned long flags)
3044{
3045 struct mm_struct *mm = (struct mm_struct *)priv;
3046
3047 vma_add_mapping(mm, start, end, flags);
3048 return (0);
3049}
3050
3051static void fill_note(struct memelfnote *note, const char *name, int type,
3052 unsigned int sz, void *data)
3053{
3054 unsigned int namesz;
3055
3056 namesz = strlen(name) + 1;
3057 note->name = name;
3058 note->namesz = namesz;
3059 note->namesz_rounded = roundup(namesz, sizeof (int32_t));
3060 note->type = type;
3061 note->datasz = sz;
3062 note->datasz_rounded = roundup(sz, sizeof (int32_t));
3063
3064 note->data = data;
3065
3066
3067
3068
3069
3070 note->notesz = sizeof (struct elf_note) +
3071 note->namesz_rounded + note->datasz_rounded;
3072}
3073
3074static void fill_elf_header(struct elfhdr *elf, int segs, uint16_t machine,
3075 uint32_t flags)
3076{
3077 (void) memset(elf, 0, sizeof(*elf));
3078
3079 (void) memcpy(elf->e_ident, ELFMAG, SELFMAG);
3080 elf->e_ident[EI_CLASS] = ELF_CLASS;
3081 elf->e_ident[EI_DATA] = ELF_DATA;
3082 elf->e_ident[EI_VERSION] = EV_CURRENT;
3083 elf->e_ident[EI_OSABI] = ELF_OSABI;
3084
3085 elf->e_type = ET_CORE;
3086 elf->e_machine = machine;
3087 elf->e_version = EV_CURRENT;
3088 elf->e_phoff = sizeof(struct elfhdr);
3089 elf->e_flags = flags;
3090 elf->e_ehsize = sizeof(struct elfhdr);
3091 elf->e_phentsize = sizeof(struct elf_phdr);
3092 elf->e_phnum = segs;
3093
3094 bswap_ehdr(elf);
3095}
3096
3097static void fill_elf_note_phdr(struct elf_phdr *phdr, int sz, off_t offset)
3098{
3099 phdr->p_type = PT_NOTE;
3100 phdr->p_offset = offset;
3101 phdr->p_vaddr = 0;
3102 phdr->p_paddr = 0;
3103 phdr->p_filesz = sz;
3104 phdr->p_memsz = 0;
3105 phdr->p_flags = 0;
3106 phdr->p_align = 0;
3107
3108 bswap_phdr(phdr, 1);
3109}
3110
3111static size_t note_size(const struct memelfnote *note)
3112{
3113 return (note->notesz);
3114}
3115
3116static void fill_prstatus(struct target_elf_prstatus *prstatus,
3117 const TaskState *ts, int signr)
3118{
3119 (void) memset(prstatus, 0, sizeof (*prstatus));
3120 prstatus->pr_info.si_signo = prstatus->pr_cursig = signr;
3121 prstatus->pr_pid = ts->ts_tid;
3122 prstatus->pr_ppid = getppid();
3123 prstatus->pr_pgrp = getpgrp();
3124 prstatus->pr_sid = getsid(0);
3125
3126 bswap_prstatus(prstatus);
3127}
3128
3129static int fill_psinfo(struct target_elf_prpsinfo *psinfo, const TaskState *ts)
3130{
3131 char *base_filename;
3132 unsigned int i, len;
3133
3134 (void) memset(psinfo, 0, sizeof (*psinfo));
3135
3136 len = ts->info->arg_end - ts->info->arg_start;
3137 if (len >= ELF_PRARGSZ)
3138 len = ELF_PRARGSZ - 1;
3139 if (copy_from_user(&psinfo->pr_psargs, ts->info->arg_start, len))
3140 return -EFAULT;
3141 for (i = 0; i < len; i++)
3142 if (psinfo->pr_psargs[i] == 0)
3143 psinfo->pr_psargs[i] = ' ';
3144 psinfo->pr_psargs[len] = 0;
3145
3146 psinfo->pr_pid = getpid();
3147 psinfo->pr_ppid = getppid();
3148 psinfo->pr_pgrp = getpgrp();
3149 psinfo->pr_sid = getsid(0);
3150 psinfo->pr_uid = getuid();
3151 psinfo->pr_gid = getgid();
3152
3153 base_filename = g_path_get_basename(ts->bprm->filename);
3154
3155
3156
3157
3158 (void) strncpy(psinfo->pr_fname, base_filename,
3159 sizeof(psinfo->pr_fname));
3160
3161 g_free(base_filename);
3162 bswap_psinfo(psinfo);
3163 return (0);
3164}
3165
3166static void fill_auxv_note(struct memelfnote *note, const TaskState *ts)
3167{
3168 elf_addr_t auxv = (elf_addr_t)ts->info->saved_auxv;
3169 elf_addr_t orig_auxv = auxv;
3170 void *ptr;
3171 int len = ts->info->auxv_len;
3172
3173
3174
3175
3176
3177
3178
3179
3180 ptr = lock_user(VERIFY_READ, orig_auxv, len, 0);
3181 if (ptr != NULL) {
3182 fill_note(note, "CORE", NT_AUXV, len, ptr);
3183 unlock_user(ptr, auxv, len);
3184 }
3185}
3186
3187
3188
3189
3190
3191
3192
3193
3194static int core_dump_filename(const TaskState *ts, char *buf,
3195 size_t bufsize)
3196{
3197 char timestamp[64];
3198 char *base_filename = NULL;
3199 struct timeval tv;
3200 struct tm tm;
3201
3202 assert(bufsize >= PATH_MAX);
3203
3204 if (gettimeofday(&tv, NULL) < 0) {
3205 (void) fprintf(stderr, "unable to get current timestamp: %s",
3206 strerror(errno));
3207 return (-1);
3208 }
3209
3210 base_filename = g_path_get_basename(ts->bprm->filename);
3211 (void) strftime(timestamp, sizeof (timestamp), "%Y%m%d-%H%M%S",
3212 localtime_r(&tv.tv_sec, &tm));
3213 (void) snprintf(buf, bufsize, "qemu_%s_%s_%d.core",
3214 base_filename, timestamp, (int)getpid());
3215 g_free(base_filename);
3216
3217 return (0);
3218}
3219
3220static int dump_write(int fd, const void *ptr, size_t size)
3221{
3222 const char *bufp = (const char *)ptr;
3223 ssize_t bytes_written, bytes_left;
3224 struct rlimit dumpsize;
3225 off_t pos;
3226
3227 bytes_written = 0;
3228 getrlimit(RLIMIT_CORE, &dumpsize);
3229 if ((pos = lseek(fd, 0, SEEK_CUR))==-1) {
3230 if (errno == ESPIPE) {
3231 bytes_left = size;
3232 } else {
3233 return pos;
3234 }
3235 } else {
3236 if (dumpsize.rlim_cur <= pos) {
3237 return -1;
3238 } else if (dumpsize.rlim_cur == RLIM_INFINITY) {
3239 bytes_left = size;
3240 } else {
3241 size_t limit_left=dumpsize.rlim_cur - pos;
3242 bytes_left = limit_left >= size ? size : limit_left ;
3243 }
3244 }
3245
3246
3247
3248
3249
3250 do {
3251 bytes_written = write(fd, bufp, bytes_left);
3252 if (bytes_written < 0) {
3253 if (errno == EINTR)
3254 continue;
3255 return (-1);
3256 } else if (bytes_written == 0) {
3257 return (-1);
3258 }
3259 bufp += bytes_written;
3260 bytes_left -= bytes_written;
3261 } while (bytes_left > 0);
3262
3263 return (0);
3264}
3265
3266static int write_note(struct memelfnote *men, int fd)
3267{
3268 struct elf_note en;
3269
3270 en.n_namesz = men->namesz;
3271 en.n_type = men->type;
3272 en.n_descsz = men->datasz;
3273
3274 bswap_note(&en);
3275
3276 if (dump_write(fd, &en, sizeof(en)) != 0)
3277 return (-1);
3278 if (dump_write(fd, men->name, men->namesz_rounded) != 0)
3279 return (-1);
3280 if (dump_write(fd, men->data, men->datasz_rounded) != 0)
3281 return (-1);
3282
3283 return (0);
3284}
3285
3286static void fill_thread_info(struct elf_note_info *info, const CPUArchState *env)
3287{
3288 CPUState *cpu = ENV_GET_CPU((CPUArchState *)env);
3289 TaskState *ts = (TaskState *)cpu->opaque;
3290 struct elf_thread_status *ets;
3291
3292 ets = g_malloc0(sizeof (*ets));
3293 ets->num_notes = 1;
3294 fill_prstatus(&ets->prstatus, ts, 0);
3295 elf_core_copy_regs(&ets->prstatus.pr_reg, env);
3296 fill_note(&ets->notes[0], "CORE", NT_PRSTATUS, sizeof (ets->prstatus),
3297 &ets->prstatus);
3298
3299 QTAILQ_INSERT_TAIL(&info->thread_list, ets, ets_link);
3300
3301 info->notes_size += note_size(&ets->notes[0]);
3302}
3303
3304static void init_note_info(struct elf_note_info *info)
3305{
3306
3307
3308
3309
3310 memset(info, 0, sizeof (*info));
3311 QTAILQ_INIT(&info->thread_list);
3312}
3313
3314static int fill_note_info(struct elf_note_info *info,
3315 long signr, const CPUArchState *env)
3316{
3317#define NUMNOTES 3
3318 CPUState *cpu = ENV_GET_CPU((CPUArchState *)env);
3319 TaskState *ts = (TaskState *)cpu->opaque;
3320 int i;
3321
3322 info->notes = g_new0(struct memelfnote, NUMNOTES);
3323 if (info->notes == NULL)
3324 return (-ENOMEM);
3325 info->prstatus = g_malloc0(sizeof (*info->prstatus));
3326 if (info->prstatus == NULL)
3327 return (-ENOMEM);
3328 info->psinfo = g_malloc0(sizeof (*info->psinfo));
3329 if (info->prstatus == NULL)
3330 return (-ENOMEM);
3331
3332
3333
3334
3335
3336 fill_prstatus(info->prstatus, ts, signr);
3337 elf_core_copy_regs(&info->prstatus->pr_reg, env);
3338 fill_note(&info->notes[0], "CORE", NT_PRSTATUS,
3339 sizeof (*info->prstatus), info->prstatus);
3340 fill_psinfo(info->psinfo, ts);
3341 fill_note(&info->notes[1], "CORE", NT_PRPSINFO,
3342 sizeof (*info->psinfo), info->psinfo);
3343 fill_auxv_note(&info->notes[2], ts);
3344 info->numnote = 3;
3345
3346 info->notes_size = 0;
3347 for (i = 0; i < info->numnote; i++)
3348 info->notes_size += note_size(&info->notes[i]);
3349
3350
3351 cpu_list_lock();
3352 CPU_FOREACH(cpu) {
3353 if (cpu == thread_cpu) {
3354 continue;
3355 }
3356 fill_thread_info(info, (CPUArchState *)cpu->env_ptr);
3357 }
3358 cpu_list_unlock();
3359
3360 return (0);
3361}
3362
3363static void free_note_info(struct elf_note_info *info)
3364{
3365 struct elf_thread_status *ets;
3366
3367 while (!QTAILQ_EMPTY(&info->thread_list)) {
3368 ets = QTAILQ_FIRST(&info->thread_list);
3369 QTAILQ_REMOVE(&info->thread_list, ets, ets_link);
3370 g_free(ets);
3371 }
3372
3373 g_free(info->prstatus);
3374 g_free(info->psinfo);
3375 g_free(info->notes);
3376}
3377
3378static int write_note_info(struct elf_note_info *info, int fd)
3379{
3380 struct elf_thread_status *ets;
3381 int i, error = 0;
3382
3383
3384 for (i = 0; i < info->numnote; i++)
3385 if ((error = write_note(&info->notes[i], fd)) != 0)
3386 return (error);
3387
3388
3389 QTAILQ_FOREACH(ets, &info->thread_list, ets_link) {
3390 if ((error = write_note(&ets->notes[0], fd)) != 0)
3391 return (error);
3392 }
3393
3394 return (0);
3395}
3396
3397
3398
3399
3400
3401
3402
3403
3404
3405
3406
3407
3408
3409
3410
3411
3412
3413
3414
3415
3416
3417
3418
3419
3420
3421
3422
3423
3424
3425
3426
3427
3428
3429
3430
3431
3432
3433
3434
3435
3436
3437
3438
3439
3440static int elf_core_dump(int signr, const CPUArchState *env)
3441{
3442 const CPUState *cpu = ENV_GET_CPU((CPUArchState *)env);
3443 const TaskState *ts = (const TaskState *)cpu->opaque;
3444 struct vm_area_struct *vma = NULL;
3445 char corefile[PATH_MAX];
3446 struct elf_note_info info;
3447 struct elfhdr elf;
3448 struct elf_phdr phdr;
3449 struct rlimit dumpsize;
3450 struct mm_struct *mm = NULL;
3451 off_t offset = 0, data_offset = 0;
3452 int segs = 0;
3453 int fd = -1;
3454
3455 init_note_info(&info);
3456
3457 errno = 0;
3458 getrlimit(RLIMIT_CORE, &dumpsize);
3459 if (dumpsize.rlim_cur == 0)
3460 return 0;
3461
3462 if (core_dump_filename(ts, corefile, sizeof (corefile)) < 0)
3463 return (-errno);
3464
3465 if ((fd = open(corefile, O_WRONLY | O_CREAT,
3466 S_IRUSR|S_IWUSR|S_IRGRP|S_IROTH)) < 0)
3467 return (-errno);
3468
3469
3470
3471
3472
3473
3474 if ((mm = vma_init()) == NULL)
3475 goto out;
3476
3477 walk_memory_regions(mm, vma_walker);
3478 segs = vma_get_mapping_count(mm);
3479
3480
3481
3482
3483
3484 fill_elf_header(&elf, segs + 1, ELF_MACHINE, 0);
3485 if (dump_write(fd, &elf, sizeof (elf)) != 0)
3486 goto out;
3487
3488
3489 if (fill_note_info(&info, signr, env) < 0)
3490 goto out;
3491
3492 offset += sizeof (elf);
3493 offset += (segs + 1) * sizeof (struct elf_phdr);
3494
3495
3496 fill_elf_note_phdr(&phdr, info.notes_size, offset);
3497
3498 offset += info.notes_size;
3499 if (dump_write(fd, &phdr, sizeof (phdr)) != 0)
3500 goto out;
3501
3502
3503
3504
3505
3506 data_offset = offset = roundup(offset, ELF_EXEC_PAGESIZE);
3507
3508
3509
3510
3511
3512 for (vma = vma_first(mm); vma != NULL; vma = vma_next(vma)) {
3513 (void) memset(&phdr, 0, sizeof (phdr));
3514
3515 phdr.p_type = PT_LOAD;
3516 phdr.p_offset = offset;
3517 phdr.p_vaddr = vma->vma_start;
3518 phdr.p_paddr = 0;
3519 phdr.p_filesz = vma_dump_size(vma);
3520 offset += phdr.p_filesz;
3521 phdr.p_memsz = vma->vma_end - vma->vma_start;
3522 phdr.p_flags = vma->vma_flags & PROT_READ ? PF_R : 0;
3523 if (vma->vma_flags & PROT_WRITE)
3524 phdr.p_flags |= PF_W;
3525 if (vma->vma_flags & PROT_EXEC)
3526 phdr.p_flags |= PF_X;
3527 phdr.p_align = ELF_EXEC_PAGESIZE;
3528
3529 bswap_phdr(&phdr, 1);
3530 if (dump_write(fd, &phdr, sizeof(phdr)) != 0) {
3531 goto out;
3532 }
3533 }
3534
3535
3536
3537
3538
3539 if (write_note_info(&info, fd) < 0)
3540 goto out;
3541
3542
3543 if (lseek(fd, data_offset, SEEK_SET) != data_offset)
3544 goto out;
3545
3546
3547
3548
3549 for (vma = vma_first(mm); vma != NULL; vma = vma_next(vma)) {
3550 abi_ulong addr;
3551 abi_ulong end;
3552
3553 end = vma->vma_start + vma_dump_size(vma);
3554
3555 for (addr = vma->vma_start; addr < end;
3556 addr += TARGET_PAGE_SIZE) {
3557 char page[TARGET_PAGE_SIZE];
3558 int error;
3559
3560
3561
3562
3563
3564 error = copy_from_user(page, addr, sizeof (page));
3565 if (error != 0) {
3566 (void) fprintf(stderr, "unable to dump " TARGET_ABI_FMT_lx "\n",
3567 addr);
3568 errno = -error;
3569 goto out;
3570 }
3571 if (dump_write(fd, page, TARGET_PAGE_SIZE) < 0)
3572 goto out;
3573 }
3574 }
3575
3576 out:
3577 free_note_info(&info);
3578 if (mm != NULL)
3579 vma_delete(mm);
3580 (void) close(fd);
3581
3582 if (errno != 0)
3583 return (-errno);
3584 return (0);
3585}
3586#endif
3587
3588void do_init_thread(struct target_pt_regs *regs, struct image_info *infop)
3589{
3590 init_thread(regs, infop);
3591}
3592