1 2 /*--------------------------------------------------------------------*/ 3 /*--- Dumping core. coredump-elf.c ---*/ 4 /*--------------------------------------------------------------------*/ 5 6 /* 7 This file is part of Valgrind, a dynamic binary instrumentation 8 framework. 9 10 Copyright (C) 2000-2011 Julian Seward 11 jseward (at) acm.org 12 13 This program is free software; you can redistribute it and/or 14 modify it under the terms of the GNU General Public License as 15 published by the Free Software Foundation; either version 2 of the 16 License, or (at your option) any later version. 17 18 This program is distributed in the hope that it will be useful, but 19 WITHOUT ANY WARRANTY; without even the implied warranty of 20 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 21 General Public License for more details. 22 23 You should have received a copy of the GNU General Public License 24 along with this program; if not, write to the Free Software 25 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 26 02111-1307, USA. 27 28 The GNU General Public License is contained in the file COPYING. 29 */ 30 31 #if defined(VGO_linux) 32 33 #include "pub_core_basics.h" 34 #include "pub_core_vki.h" 35 #include "pub_core_aspacehl.h" 36 #include "pub_core_aspacemgr.h" 37 #include "pub_core_libcbase.h" 38 #include "pub_core_machine.h" 39 #include "pub_core_coredump.h" 40 #include "pub_core_libcprint.h" 41 #include "pub_core_libcfile.h" // VG_(close) et al 42 #include "pub_core_libcproc.h" // VG_(geteuid), VG_(getegid) 43 #include "pub_core_libcassert.h" // VG_(exit), vg_assert 44 #include "pub_core_mallocfree.h" // VG_(malloc), VG_(free) 45 #include "pub_core_libcsetjmp.h" // to keep _threadstate.h happy 46 #include "pub_core_threadstate.h" 47 #include "pub_core_xarray.h" 48 #include "pub_core_clientstate.h" 49 #include "pub_core_options.h" 50 51 /* 52 Dump core 53 54 Generate a standard ELF core file corresponding to the client state 55 at the time of a crash. 56 */ 57 #include <elf.h> 58 #ifndef NT_PRXFPREG 59 #define NT_PRXFPREG 0x46e62b7f /* copied from gdb5.1/include/elf/common.h */ 60 #endif /* NT_PRXFPREG */ 61 62 #if VG_WORDSIZE == 8 63 #define ESZ(x) Elf64_##x 64 #elif VG_WORDSIZE == 4 65 #define ESZ(x) Elf32_##x 66 #else 67 #error VG_WORDSIZE needs to ==4 or ==8 68 #endif 69 70 /* If true, then this Segment may be mentioned in the core */ 71 static Bool may_dump(const NSegment *seg) 72 { 73 if (seg->kind == SkAnonC || 74 seg->kind == SkShmC || 75 (seg->kind == SkFileC && 76 !VKI_S_ISCHR(seg->mode) && !VKI_S_ISBLK(seg->mode))) 77 return True; 78 79 return False; 80 } 81 82 /* If true, then this Segment's contents will be in the core */ 83 static Bool should_dump(const NSegment *seg) 84 { 85 return may_dump(seg); // && seg->hasW; 86 } 87 88 static void fill_ehdr(ESZ(Ehdr) *ehdr, Int num_phdrs) 89 { 90 VG_(memset)(ehdr, 0, sizeof(*ehdr)); 91 92 VG_(memcpy)(ehdr->e_ident, ELFMAG, SELFMAG); 93 ehdr->e_ident[EI_CLASS] = VG_ELF_CLASS; 94 ehdr->e_ident[EI_DATA] = VG_ELF_DATA2XXX; 95 ehdr->e_ident[EI_VERSION] = EV_CURRENT; 96 97 ehdr->e_type = ET_CORE; 98 ehdr->e_machine = VG_ELF_MACHINE; 99 ehdr->e_version = EV_CURRENT; 100 ehdr->e_entry = 0; 101 ehdr->e_phoff = sizeof(ESZ(Ehdr)); 102 ehdr->e_shoff = 0; 103 ehdr->e_flags = 0; 104 ehdr->e_ehsize = sizeof(ESZ(Ehdr)); 105 ehdr->e_phentsize = sizeof(ESZ(Phdr)); 106 ehdr->e_phnum = num_phdrs; 107 ehdr->e_shentsize = 0; 108 ehdr->e_shnum = 0; 109 ehdr->e_shstrndx = 0; 110 111 } 112 113 static void fill_phdr(ESZ(Phdr) *phdr, const NSegment *seg, UInt off, Bool write) 114 { 115 SizeT len = seg->end - seg->start; 116 117 write = write && should_dump(seg); 118 119 VG_(memset)(phdr, 0, sizeof(*phdr)); 120 121 phdr->p_type = PT_LOAD; 122 phdr->p_offset = off; 123 phdr->p_vaddr = seg->start; 124 phdr->p_paddr = 0; 125 phdr->p_filesz = write ? len : 0; 126 phdr->p_memsz = len; 127 phdr->p_flags = 0; 128 129 if (seg->hasR) 130 phdr->p_flags |= PF_R; 131 if (seg->hasW) 132 phdr->p_flags |= PF_W; 133 if (seg->hasX) 134 phdr->p_flags |= PF_X; 135 136 phdr->p_align = VKI_PAGE_SIZE; 137 } 138 139 struct note { 140 struct note *next; 141 ESZ(Nhdr) note; 142 Char name[0]; 143 }; 144 145 static UInt note_size(const struct note *n) 146 { 147 return sizeof(ESZ(Nhdr)) + VG_ROUNDUP(VG_(strlen)(n->name)+1, 4) 148 + VG_ROUNDUP(n->note.n_descsz, 4); 149 } 150 151 #if !defined(VGPV_arm_linux_android) 152 static void add_note(struct note **list, const Char *name, UInt type, 153 const void *data, UInt datasz) 154 { 155 Int namelen = VG_(strlen)(name)+1; 156 Int notelen = sizeof(struct note) + 157 VG_ROUNDUP(namelen, 4) + 158 VG_ROUNDUP(datasz, 4); 159 struct note *n = VG_(arena_malloc)(VG_AR_CORE, "coredump-elf.an.1", notelen); 160 161 VG_(memset)(n, 0, notelen); 162 163 n->next = *list; 164 *list = n; 165 166 n->note.n_type = type; 167 n->note.n_namesz = namelen; 168 n->note.n_descsz = datasz; 169 170 VG_(memcpy)(n->name, name, namelen); 171 VG_(memcpy)(n->name+VG_ROUNDUP(namelen,4), data, datasz); 172 } 173 #endif /* !defined(VGPV_arm_linux_android) */ 174 175 static void write_note(Int fd, const struct note *n) 176 { 177 VG_(write)(fd, &n->note, note_size(n)); 178 } 179 180 static void fill_prpsinfo(const ThreadState *tst, 181 struct vki_elf_prpsinfo *prpsinfo) 182 { 183 static Char name[VKI_PATH_MAX]; 184 185 VG_(memset)(prpsinfo, 0, sizeof(*prpsinfo)); 186 187 switch(tst->status) { 188 case VgTs_Runnable: 189 case VgTs_Yielding: 190 prpsinfo->pr_sname = 'R'; 191 break; 192 193 case VgTs_WaitSys: 194 prpsinfo->pr_sname = 'S'; 195 break; 196 197 case VgTs_Zombie: 198 prpsinfo->pr_sname = 'Z'; 199 break; 200 201 case VgTs_Empty: 202 case VgTs_Init: 203 prpsinfo->pr_sname = '?'; 204 break; 205 } 206 207 prpsinfo->pr_uid = 0; 208 prpsinfo->pr_gid = 0; 209 210 if (VG_(resolve_filename)(VG_(cl_exec_fd), name, VKI_PATH_MAX)) { 211 Char *n = name+VG_(strlen)(name)-1; 212 213 while (n > name && *n != '/') 214 n--; 215 if (n != name) 216 n++; 217 218 VG_(strncpy)(prpsinfo->pr_fname, n, sizeof(prpsinfo->pr_fname)); 219 } 220 } 221 222 static void fill_prstatus(const ThreadState *tst, 223 struct vki_elf_prstatus *prs, 224 const vki_siginfo_t *si) 225 { 226 struct vki_user_regs_struct *regs; 227 ThreadArchState* arch = (ThreadArchState*)&tst->arch; 228 229 VG_(memset)(prs, 0, sizeof(*prs)); 230 231 prs->pr_info.si_signo = si->si_signo; 232 prs->pr_info.si_code = si->si_code; 233 prs->pr_info.si_errno = 0; 234 235 prs->pr_cursig = si->si_signo; 236 237 prs->pr_pid = tst->os_state.lwpid; 238 prs->pr_ppid = 0; 239 prs->pr_pgrp = VG_(getpgrp)(); 240 prs->pr_sid = VG_(getpgrp)(); 241 242 #ifdef VGP_s390x_linux 243 /* prs->pr_reg has struct type. Need to take address. */ 244 regs = (struct vki_user_regs_struct *)&(prs->pr_reg); 245 #else 246 regs = (struct vki_user_regs_struct *)prs->pr_reg; 247 248 vg_assert(sizeof(*regs) == sizeof(prs->pr_reg)); 249 #endif 250 251 #if defined(VGP_x86_linux) 252 regs->eflags = LibVEX_GuestX86_get_eflags( &arch->vex ); 253 regs->esp = arch->vex.guest_ESP; 254 regs->eip = arch->vex.guest_EIP; 255 256 regs->ebx = arch->vex.guest_EBX; 257 regs->ecx = arch->vex.guest_ECX; 258 regs->edx = arch->vex.guest_EDX; 259 regs->esi = arch->vex.guest_ESI; 260 regs->edi = arch->vex.guest_EDI; 261 regs->ebp = arch->vex.guest_EBP; 262 regs->eax = arch->vex.guest_EAX; 263 264 regs->cs = arch->vex.guest_CS; 265 regs->ds = arch->vex.guest_DS; 266 regs->ss = arch->vex.guest_SS; 267 regs->es = arch->vex.guest_ES; 268 regs->fs = arch->vex.guest_FS; 269 regs->gs = arch->vex.guest_GS; 270 271 #elif defined(VGP_amd64_linux) 272 regs->eflags = LibVEX_GuestAMD64_get_rflags( &((ThreadArchState*)arch)->vex ); 273 regs->rsp = arch->vex.guest_RSP; 274 regs->rip = arch->vex.guest_RIP; 275 276 regs->rbx = arch->vex.guest_RBX; 277 regs->rcx = arch->vex.guest_RCX; 278 regs->rdx = arch->vex.guest_RDX; 279 regs->rsi = arch->vex.guest_RSI; 280 regs->rdi = arch->vex.guest_RDI; 281 regs->rbp = arch->vex.guest_RBP; 282 regs->rax = arch->vex.guest_RAX; 283 regs->r8 = arch->vex.guest_R8; 284 regs->r9 = arch->vex.guest_R9; 285 regs->r10 = arch->vex.guest_R10; 286 regs->r11 = arch->vex.guest_R11; 287 regs->r12 = arch->vex.guest_R12; 288 regs->r13 = arch->vex.guest_R13; 289 regs->r14 = arch->vex.guest_R14; 290 regs->r15 = arch->vex.guest_R15; 291 292 //:: regs->cs = arch->vex.guest_CS; 293 //:: regs->fs = arch->vex.guest_FS; 294 //:: regs->gs = arch->vex.guest_GS; 295 296 #elif defined(VGP_ppc32_linux) 297 # define DO(n) regs->gpr[n] = arch->vex.guest_GPR##n 298 DO(0); DO(1); DO(2); DO(3); DO(4); DO(5); DO(6); DO(7); 299 DO(8); DO(9); DO(10); DO(11); DO(12); DO(13); DO(14); DO(15); 300 DO(16); DO(17); DO(18); DO(19); DO(20); DO(21); DO(22); DO(23); 301 DO(24); DO(25); DO(26); DO(27); DO(28); DO(29); DO(30); DO(31); 302 # undef DO 303 304 regs->nip = arch->vex.guest_CIA; 305 regs->msr = 0xf032; /* pretty arbitrary */ 306 regs->orig_gpr3 = arch->vex.guest_GPR3; 307 regs->ctr = arch->vex.guest_CTR; 308 regs->link = arch->vex.guest_LR; 309 regs->xer = LibVEX_GuestPPC32_get_XER( &((ThreadArchState*)arch)->vex ); 310 regs->ccr = LibVEX_GuestPPC32_get_CR( &((ThreadArchState*)arch)->vex ); 311 regs->mq = 0; 312 regs->trap = 0; 313 regs->dar = 0; /* should be fault address? */ 314 regs->dsisr = 0; 315 regs->result = 0; 316 317 #elif defined(VGP_ppc64_linux) 318 # define DO(n) regs->gpr[n] = arch->vex.guest_GPR##n 319 DO(0); DO(1); DO(2); DO(3); DO(4); DO(5); DO(6); DO(7); 320 DO(8); DO(9); DO(10); DO(11); DO(12); DO(13); DO(14); DO(15); 321 DO(16); DO(17); DO(18); DO(19); DO(20); DO(21); DO(22); DO(23); 322 DO(24); DO(25); DO(26); DO(27); DO(28); DO(29); DO(30); DO(31); 323 # undef DO 324 325 regs->nip = arch->vex.guest_CIA; 326 regs->msr = 0xf032; /* pretty arbitrary */ 327 regs->orig_gpr3 = arch->vex.guest_GPR3; 328 regs->ctr = arch->vex.guest_CTR; 329 regs->link = arch->vex.guest_LR; 330 regs->xer = LibVEX_GuestPPC64_get_XER( &((ThreadArchState*)arch)->vex ); 331 regs->ccr = LibVEX_GuestPPC64_get_CR( &((ThreadArchState*)arch)->vex ); 332 /* regs->mq = 0; */ 333 regs->trap = 0; 334 regs->dar = 0; /* should be fault address? */ 335 regs->dsisr = 0; 336 regs->result = 0; 337 338 #elif defined(VGP_arm_linux) 339 regs->ARM_r0 = arch->vex.guest_R0; 340 regs->ARM_r1 = arch->vex.guest_R1; 341 regs->ARM_r2 = arch->vex.guest_R2; 342 regs->ARM_r3 = arch->vex.guest_R3; 343 regs->ARM_r4 = arch->vex.guest_R4; 344 regs->ARM_r5 = arch->vex.guest_R5; 345 regs->ARM_r6 = arch->vex.guest_R6; 346 regs->ARM_r7 = arch->vex.guest_R7; 347 regs->ARM_r8 = arch->vex.guest_R8; 348 regs->ARM_r9 = arch->vex.guest_R9; 349 regs->ARM_r10 = arch->vex.guest_R10; 350 regs->ARM_fp = arch->vex.guest_R11; 351 regs->ARM_ip = arch->vex.guest_R12; 352 regs->ARM_sp = arch->vex.guest_R13; 353 regs->ARM_lr = arch->vex.guest_R14; 354 regs->ARM_pc = arch->vex.guest_R15T; 355 regs->ARM_cpsr = LibVEX_GuestARM_get_cpsr( &((ThreadArchState*)arch)->vex ); 356 357 #elif defined(VGP_s390x_linux) 358 # define DO(n) regs->gprs[n] = arch->vex.guest_r##n 359 DO(0); DO(1); DO(2); DO(3); DO(4); DO(5); DO(6); DO(7); 360 DO(8); DO(9); DO(10); DO(11); DO(12); DO(13); DO(14); DO(15); 361 # undef DO 362 # define DO(n) regs->acrs[n] = arch->vex.guest_a##n 363 DO(0); DO(1); DO(2); DO(3); DO(4); DO(5); DO(6); DO(7); 364 DO(8); DO(9); DO(10); DO(11); DO(12); DO(13); DO(14); DO(15); 365 # undef DO 366 regs->orig_gpr2 = arch->vex.guest_r2; 367 #else 368 # error Unknown ELF platform 369 #endif 370 } 371 372 static void fill_fpu(const ThreadState *tst, vki_elf_fpregset_t *fpu) 373 { 374 __attribute__((unused)) 375 ThreadArchState* arch = (ThreadArchState*)&tst->arch; 376 377 #if defined(VGP_x86_linux) 378 //:: static void fill_fpu(vki_elf_fpregset_t *fpu, const Char *from) 379 //:: { 380 //:: if (VG_(have_ssestate)) { 381 //:: UShort *to; 382 //:: Int i; 383 //:: 384 //:: /* This is what the kernel does */ 385 //:: VG_(memcpy)(fpu, from, 7*sizeof(long)); 386 //:: 387 //:: to = (UShort *)&fpu->st_space[0]; 388 //:: from += 18 * sizeof(UShort); 389 //:: 390 //:: for (i = 0; i < 8; i++, to += 5, from += 8) 391 //:: VG_(memcpy)(to, from, 5*sizeof(UShort)); 392 //:: } else 393 //:: VG_(memcpy)(fpu, from, sizeof(*fpu)); 394 //:: } 395 396 //:: fill_fpu(fpu, (const Char *)&arch->m_sse); 397 398 #elif defined(VGP_amd64_linux) 399 //:: fpu->cwd = ?; 400 //:: fpu->swd = ?; 401 //:: fpu->twd = ?; 402 //:: fpu->fop = ?; 403 //:: fpu->rip = ?; 404 //:: fpu->rdp = ?; 405 //:: fpu->mxcsr = ?; 406 //:: fpu->mxcsr_mask = ?; 407 //:: fpu->st_space = ?; 408 409 # define DO(n) VG_(memcpy)(fpu->xmm_space + n * 4, &arch->vex.guest_XMM##n, sizeof(arch->vex.guest_XMM##n)) 410 DO(0); DO(1); DO(2); DO(3); DO(4); DO(5); DO(6); DO(7); 411 DO(8); DO(9); DO(10); DO(11); DO(12); DO(13); DO(14); DO(15); 412 # undef DO 413 414 VG_(memset)(fpu->padding, 0, sizeof(fpu->padding)); 415 416 #elif defined(VGP_ppc32_linux) 417 /* The guest state has the FPR fields declared as ULongs, so need 418 to fish out the values without converting them. 419 NOTE: The 32 FP registers map to the first 32 VSX registers.*/ 420 # define DO(n) (*fpu)[n] = *(double*)(&arch->vex.guest_VSR##n) 421 DO(0); DO(1); DO(2); DO(3); DO(4); DO(5); DO(6); DO(7); 422 DO(8); DO(9); DO(10); DO(11); DO(12); DO(13); DO(14); DO(15); 423 DO(16); DO(17); DO(18); DO(19); DO(20); DO(21); DO(22); DO(23); 424 DO(24); DO(25); DO(26); DO(27); DO(28); DO(29); DO(30); DO(31); 425 # undef DO 426 427 #elif defined(VGP_ppc64_linux) 428 /* The guest state has the FPR fields declared as ULongs, so need 429 to fish out the values without converting them. 430 NOTE: The 32 FP registers map to the first 32 VSX registers.*/ 431 # define DO(n) (*fpu)[n] = *(double*)(&arch->vex.guest_VSR##n) 432 DO(0); DO(1); DO(2); DO(3); DO(4); DO(5); DO(6); DO(7); 433 DO(8); DO(9); DO(10); DO(11); DO(12); DO(13); DO(14); DO(15); 434 DO(16); DO(17); DO(18); DO(19); DO(20); DO(21); DO(22); DO(23); 435 DO(24); DO(25); DO(26); DO(27); DO(28); DO(29); DO(30); DO(31); 436 # undef DO 437 438 #elif defined(VGP_arm_linux) 439 // umm ... 440 441 #elif defined(VGP_s390x_linux) 442 # define DO(n) fpu->fprs[n].ui = arch->vex.guest_f##n 443 DO(0); DO(1); DO(2); DO(3); DO(4); DO(5); DO(6); DO(7); 444 DO(8); DO(9); DO(10); DO(11); DO(12); DO(13); DO(14); DO(15); 445 # undef DO 446 #else 447 # error Unknown ELF platform 448 #endif 449 } 450 451 #if defined(VGP_x86_linux) 452 static void fill_xfpu(const ThreadState *tst, vki_elf_fpxregset_t *xfpu) 453 { 454 ThreadArchState* arch = (ThreadArchState*)&tst->arch; 455 456 //:: xfpu->cwd = ?; 457 //:: xfpu->swd = ?; 458 //:: xfpu->twd = ?; 459 //:: xfpu->fop = ?; 460 //:: xfpu->fip = ?; 461 //:: xfpu->fcs = ?; 462 //:: xfpu->foo = ?; 463 //:: xfpu->fos = ?; 464 //:: xfpu->mxcsr = ?; 465 xfpu->reserved = 0; 466 //:: xfpu->st_space = ?; 467 468 # define DO(n) VG_(memcpy)(xfpu->xmm_space + n * 4, &arch->vex.guest_XMM##n, sizeof(arch->vex.guest_XMM##n)) 469 DO(0); DO(1); DO(2); DO(3); DO(4); DO(5); DO(6); DO(7); 470 # undef DO 471 472 VG_(memset)(xfpu->padding, 0, sizeof(xfpu->padding)); 473 } 474 #endif 475 476 static 477 void make_elf_coredump(ThreadId tid, const vki_siginfo_t *si, UInt max_size) 478 { 479 Char* buf = NULL; 480 Char *basename = "vgcore"; 481 Char *coreext = ""; 482 Int seq = 0; 483 Int core_fd; 484 NSegment const * seg; 485 ESZ(Ehdr) ehdr; 486 ESZ(Phdr) *phdrs; 487 Int num_phdrs; 488 Int i, idx; 489 UInt off; 490 struct note *notelist, *note; 491 UInt notesz; 492 struct vki_elf_prpsinfo prpsinfo; 493 struct vki_elf_prstatus prstatus; 494 Addr *seg_starts; 495 Int n_seg_starts; 496 497 if (VG_(clo_log_fname_expanded) != NULL) { 498 coreext = ".core"; 499 basename = VG_(expand_file_name)( 500 "--log-file (while creating core filename)", 501 VG_(clo_log_fname_expanded)); 502 } 503 504 vg_assert(coreext); 505 vg_assert(basename); 506 buf = VG_(malloc)( "coredump-elf.mec.1", 507 VG_(strlen)(coreext) + VG_(strlen)(basename) 508 + 100/*for the two %ds. */ ); 509 vg_assert(buf); 510 511 for(;;) { 512 Int oflags = VKI_O_CREAT|VKI_O_WRONLY|VKI_O_EXCL|VKI_O_TRUNC; 513 SysRes sres; 514 515 if (seq == 0) 516 VG_(sprintf)(buf, "%s%s.%d", 517 basename, coreext, VG_(getpid)()); 518 else 519 VG_(sprintf)(buf, "%s%s.%d.%d", 520 basename, coreext, VG_(getpid)(), seq); 521 seq++; 522 523 # if defined(VKI_O_LARGEFILE) 524 oflags |= VKI_O_LARGEFILE; 525 # endif 526 527 sres = VG_(open)(buf, oflags, VKI_S_IRUSR|VKI_S_IWUSR); 528 if (!sr_isError(sres)) { 529 core_fd = sr_Res(sres); 530 break; 531 } 532 533 if (sr_isError(sres) && sr_Err(sres) != VKI_EEXIST) 534 return; /* can't create file */ 535 } 536 537 /* Get the segments */ 538 seg_starts = VG_(get_segment_starts)(&n_seg_starts); 539 540 /* First, count how many memory segments to dump */ 541 num_phdrs = 1; /* start with notes */ 542 for(i = 0; i < n_seg_starts; i++) { 543 if (!may_dump(VG_(am_find_nsegment(seg_starts[i])))) 544 continue; 545 546 num_phdrs++; 547 } 548 549 fill_ehdr(&ehdr, num_phdrs); 550 551 notelist = NULL; 552 553 /* Second, work out their layout */ 554 phdrs = VG_(arena_malloc)(VG_AR_CORE, "coredump-elf.mec.1", 555 sizeof(*phdrs) * num_phdrs); 556 557 for(i = 1; i < VG_N_THREADS; i++) { 558 vki_elf_fpregset_t fpu; 559 560 if (VG_(threads)[i].status == VgTs_Empty) 561 continue; 562 563 # if defined(VGP_x86_linux) 564 { 565 vki_elf_fpxregset_t xfpu; 566 fill_xfpu(&VG_(threads)[i], &xfpu); 567 add_note(¬elist, "LINUX", NT_PRXFPREG, &xfpu, sizeof(xfpu)); 568 } 569 # endif 570 571 fill_fpu(&VG_(threads)[i], &fpu); 572 # if !defined(VGPV_arm_linux_android) && !defined(VGPV_x86_linux_android) 573 add_note(¬elist, "CORE", NT_FPREGSET, &fpu, sizeof(fpu)); 574 # endif 575 576 fill_prstatus(&VG_(threads)[i], &prstatus, si); 577 # if !defined(VGPV_arm_linux_android) && !defined(VGPV_x86_linux_android) 578 add_note(¬elist, "CORE", NT_PRSTATUS, &prstatus, sizeof(prstatus)); 579 # endif 580 } 581 582 fill_prpsinfo(&VG_(threads)[tid], &prpsinfo); 583 # if !defined(VGPV_arm_linux_android) && !defined(VGPV_x86_linux_android) 584 add_note(¬elist, "CORE", NT_PRPSINFO, &prpsinfo, sizeof(prpsinfo)); 585 # endif 586 587 for (note = notelist, notesz = 0; note != NULL; note = note->next) 588 notesz += note_size(note); 589 590 off = sizeof(ehdr) + sizeof(*phdrs) * num_phdrs; 591 592 phdrs[0].p_type = PT_NOTE; 593 phdrs[0].p_offset = off; 594 phdrs[0].p_vaddr = 0; 595 phdrs[0].p_paddr = 0; 596 phdrs[0].p_filesz = notesz; 597 phdrs[0].p_memsz = 0; 598 phdrs[0].p_flags = 0; 599 phdrs[0].p_align = 0; 600 601 off += notesz; 602 603 off = VG_PGROUNDUP(off); 604 605 for(i = 0, idx = 1; i < n_seg_starts; i++) { 606 seg = VG_(am_find_nsegment(seg_starts[i])); 607 608 if (!may_dump(seg)) 609 continue; 610 611 fill_phdr(&phdrs[idx], seg, off, 612 (seg->end - seg->start + off) < max_size); 613 614 off += phdrs[idx].p_filesz; 615 616 idx++; 617 } 618 619 /* write everything out */ 620 VG_(write)(core_fd, &ehdr, sizeof(ehdr)); 621 VG_(write)(core_fd, phdrs, sizeof(*phdrs) * num_phdrs); 622 623 for(note = notelist; note != NULL; note = note->next) 624 write_note(core_fd, note); 625 626 VG_(lseek)(core_fd, phdrs[1].p_offset, VKI_SEEK_SET); 627 628 for(i = 0, idx = 1; i < n_seg_starts; i++) { 629 seg = VG_(am_find_nsegment(seg_starts[i])); 630 631 if (!should_dump(seg)) 632 continue; 633 634 if (phdrs[idx].p_filesz > 0) { 635 vg_assert(VG_(lseek)(core_fd, phdrs[idx].p_offset, VKI_SEEK_SET) 636 == phdrs[idx].p_offset); 637 vg_assert(seg->end - seg->start >= phdrs[idx].p_filesz); 638 639 (void)VG_(write)(core_fd, (void *)seg->start, phdrs[idx].p_filesz); 640 } 641 idx++; 642 } 643 644 VG_(free)(seg_starts); 645 646 VG_(close)(core_fd); 647 } 648 649 void VG_(make_coredump)(ThreadId tid, const vki_siginfo_t *si, UInt max_size) 650 { 651 make_elf_coredump(tid, si, max_size); 652 } 653 654 #endif // defined(VGO_linux) 655 656 /*--------------------------------------------------------------------*/ 657 /*--- end ---*/ 658 /*--------------------------------------------------------------------*/ 659