1 2 /*--------------------------------------------------------------------*/ 3 /*--- Reading of syms & debug info from PDB-format files. ---*/ 4 /*--- readpdb.c ---*/ 5 /*--------------------------------------------------------------------*/ 6 7 /* 8 This file is part of Valgrind, a dynamic binary instrumentation 9 framework. 10 Spring 2008: 11 derived from readelf.c and valgrind-20031012-wine/vg_symtab2.c 12 derived from wine-1.0/tools/winedump/pdb.c and msc.c 13 14 Copyright (C) 2000-2008 Julian Seward 15 jseward (at) acm.org 16 Copyright 2006 Eric Pouech (winedump/pdb.c and msc.c) 17 GNU Lesser General Public License version 2.1 or later applies. 18 Copyright (C) 2008 BitWagon Software LLC 19 20 This program is free software; you can redistribute it and/or 21 modify it under the terms of the GNU General Public License as 22 published by the Free Software Foundation; either version 2 of the 23 License, or (at your option) any later version. 24 25 This program is distributed in the hope that it will be useful, but 26 WITHOUT ANY WARRANTY; without even the implied warranty of 27 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 28 General Public License for more details. 29 30 You should have received a copy of the GNU General Public License 31 along with this program; if not, write to the Free Software 32 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 33 02111-1307, USA. 34 35 The GNU General Public License is contained in the file COPYING. 36 */ 37 38 #if defined(VGO_linux) || defined(VGO_darwin) 39 40 #include "pub_core_basics.h" 41 #include "pub_core_debuginfo.h" 42 #include "pub_core_vki.h" // VKI_PAGE_SIZE 43 #include "pub_core_libcbase.h" 44 #include "pub_core_libcassert.h" 45 #include "pub_core_libcfile.h" // VG_(open), read, lseek, close 46 #include "pub_core_libcprint.h" 47 #include "pub_core_libcproc.h" // VG_(getpid), system 48 #include "pub_core_options.h" // VG_(clo_verbosity) 49 #include "pub_core_xarray.h" // keeps priv_storage.h happy 50 #include "pub_core_redir.h" 51 52 #include "priv_misc.h" /* dinfo_zalloc/free/strdup */ 53 #include "priv_d3basics.h" 54 #include "priv_storage.h" 55 #include "priv_readpdb.h" // self 56 57 58 /*------------------------------------------------------------*/ 59 /*--- ---*/ 60 /*--- Biasing ---*/ 61 /*--- ---*/ 62 /*------------------------------------------------------------*/ 63 64 /* JRS 2009-Apr-13: Mostly this PDB reader is straightforward. But 65 the biasing is incomprehensible, and I don't claim to understand it 66 at all. There are four places where biasing is required: 67 68 - when reading symbol addresses (DEBUG_SnarfCodeView) 69 - when reading old-style line number tables (DEBUG_SnarfLinetab) 70 - when reading new-style line number tables (codeview_dump_linetab2) 71 - when reading FPO (stack-unwind) tables (pdb_dump) 72 73 To complicate matters further, Wine supplies us, via the 74 VG_USERREQ__LOAD_PDB_DEBUGINFO client request that initiates PDB 75 reading, a value 'unknown_purpose__reloc' which, if you read 76 'virtual.c' in the Wine sources, looks a lot like a text bias 77 value. Yet the code below ignores it. 78 79 To make future experimentation with biasing easier, here are four 80 macros which give the bias to use in each of the four cases. Be 81 warned, they can and do refer to local vars in the relevant 82 functions. */ 83 84 /* The BIAS_FOR_{SYMBOLS,LINETAB,LINETAB2} are as in JohnR's original 85 patch. BIAS_FOR_FPO was originally hardwired to zero, but that 86 doesn't make much sense. Here, we use text_bias as empirically 87 producing the most ranges that fall inside the text segments for a 88 multi-dll program. Of course, it could still be nonsense :-) */ 89 #define BIAS_FOR_SYMBOLS (di->rx_map_avma) 90 #define BIAS_FOR_LINETAB (di->rx_map_avma) 91 #define BIAS_FOR_LINETAB2 (di->text_bias) 92 #define BIAS_FOR_FPO (di->text_bias) 93 /* Using di->text_bias for the FPOs causes 981 in range and 1 out of 94 range. Using rx_map_avma gives 953 in range and 29 out of range, 95 so di->text_bias looks like a better bet.: 96 $ grep FPO spew-B-text_bias | grep keep | wc 97 981 4905 57429 98 $ grep FPO spew-B-text_bias | grep SKIP | wc 99 1 5 53 100 $ grep FPO spew-B-rx_map_avma | grep keep | wc 101 953 4765 55945 102 $ grep FPO spew-B-rx_map_avma | grep SKIP | wc 103 29 145 1537 104 */ 105 106 /* This module leaks space; enable m_main's calling of 107 VG_(di_discard_ALL_debuginfo)() at shutdown and run with 108 --profile-heap=yes to see. The main culprit appears to be 109 di.readpe.pdr.1. I haven't bothered to chase it further. */ 110 111 112 /*------------------------------------------------------------*/ 113 /*--- ---*/ 114 /*--- PE/PDB definitions ---*/ 115 /*--- ---*/ 116 /*------------------------------------------------------------*/ 117 118 typedef UInt DWORD; 119 typedef UShort WORD; 120 typedef UChar BYTE; 121 122 123 /* the following DOS and WINDOWS structures, defines and PE/PDB 124 * parsing code are copied or derived from the WINE 125 * project - http://www.winehq.com/ 126 */ 127 128 /* 129 * File formats definitions 130 */ 131 #define OFFSET_OF(__c,__f) ((int)(((char*)&(((__c*)0)->__f))-((char*)0))) 132 #define WIN32_PATH_MAX 256 133 134 #pragma pack(2) 135 typedef struct _IMAGE_DOS_HEADER { 136 unsigned short e_magic; /* 00: MZ Header signature */ 137 unsigned short e_cblp; /* 02: Bytes on last page of file */ 138 unsigned short e_cp; /* 04: Pages in file */ 139 unsigned short e_crlc; /* 06: Relocations */ 140 unsigned short e_cparhdr; /* 08: Size of header in paragraphs */ 141 unsigned short e_minalloc; /* 0a: Minimum extra paragraphs needed */ 142 unsigned short e_maxalloc; /* 0c: Maximum extra paragraphs needed */ 143 unsigned short e_ss; /* 0e: Initial (relative) SS value */ 144 unsigned short e_sp; /* 10: Initial SP value */ 145 unsigned short e_csum; /* 12: Checksum */ 146 unsigned short e_ip; /* 14: Initial IP value */ 147 unsigned short e_cs; /* 16: Initial (relative) CS value */ 148 unsigned short e_lfarlc; /* 18: File address of relocation table */ 149 unsigned short e_ovno; /* 1a: Overlay number */ 150 unsigned short e_res[4]; /* 1c: Reserved words */ 151 unsigned short e_oemid; /* 24: OEM identifier (for e_oeminfo) */ 152 unsigned short e_oeminfo; /* 26: OEM information; e_oemid specific */ 153 unsigned short e_res2[10]; /* 28: Reserved words */ 154 unsigned long e_lfanew; /* 3c: Offset to extended header */ 155 } IMAGE_DOS_HEADER, *PIMAGE_DOS_HEADER; 156 157 #define IMAGE_DOS_SIGNATURE 0x5A4D /* MZ */ 158 #define IMAGE_OS2_SIGNATURE 0x454E /* NE */ 159 #define IMAGE_OS2_SIGNATURE_LE 0x454C /* LE */ 160 #define IMAGE_OS2_SIGNATURE_LX 0x584C /* LX */ 161 #define IMAGE_VXD_SIGNATURE 0x454C /* LE */ 162 #define IMAGE_NT_SIGNATURE 0x00004550 /* PE00 */ 163 164 /* Subsystem Values */ 165 166 #define IMAGE_SUBSYSTEM_UNKNOWN 0 167 #define IMAGE_SUBSYSTEM_NATIVE 1 168 #define IMAGE_SUBSYSTEM_WINDOWS_GUI 2 /* Windows GUI subsystem */ 169 #define IMAGE_SUBSYSTEM_WINDOWS_CUI 3 /* Windows character subsystem*/ 170 #define IMAGE_SUBSYSTEM_OS2_CUI 5 171 #define IMAGE_SUBSYSTEM_POSIX_CUI 7 172 173 typedef struct _IMAGE_FILE_HEADER { 174 unsigned short Machine; 175 unsigned short NumberOfSections; 176 unsigned long TimeDateStamp; 177 unsigned long PointerToSymbolTable; 178 unsigned long NumberOfSymbols; 179 unsigned short SizeOfOptionalHeader; 180 unsigned short Characteristics; 181 } IMAGE_FILE_HEADER, *PIMAGE_FILE_HEADER; 182 183 typedef struct _IMAGE_DATA_DIRECTORY { 184 unsigned long VirtualAddress; 185 unsigned long Size; 186 } IMAGE_DATA_DIRECTORY, *PIMAGE_DATA_DIRECTORY; 187 188 #define IMAGE_NUMBEROF_DIRECTORY_ENTRIES 16 189 190 typedef struct _IMAGE_OPTIONAL_HEADER { 191 192 /* Standard fields */ 193 194 unsigned short Magic; /* 0x10b or 0x107 */ /* 0x00 */ 195 unsigned char MajorLinkerVersion; 196 unsigned char MinorLinkerVersion; 197 unsigned long SizeOfCode; 198 unsigned long SizeOfInitializedData; 199 unsigned long SizeOfUninitializedData; 200 unsigned long AddressOfEntryPoint; /* 0x10 */ 201 unsigned long BaseOfCode; 202 unsigned long BaseOfData; 203 204 /* NT additional fields */ 205 206 unsigned long ImageBase; 207 unsigned long SectionAlignment; /* 0x20 */ 208 unsigned long FileAlignment; 209 unsigned short MajorOperatingSystemVersion; 210 unsigned short MinorOperatingSystemVersion; 211 unsigned short MajorImageVersion; 212 unsigned short MinorImageVersion; 213 unsigned short MajorSubsystemVersion; /* 0x30 */ 214 unsigned short MinorSubsystemVersion; 215 unsigned long Win32VersionValue; 216 unsigned long SizeOfImage; 217 unsigned long SizeOfHeaders; 218 unsigned long CheckSum; /* 0x40 */ 219 unsigned short Subsystem; 220 unsigned short DllCharacteristics; 221 unsigned long SizeOfStackReserve; 222 unsigned long SizeOfStackCommit; 223 unsigned long SizeOfHeapReserve; /* 0x50 */ 224 unsigned long SizeOfHeapCommit; 225 unsigned long LoaderFlags; 226 unsigned long NumberOfRvaAndSizes; 227 IMAGE_DATA_DIRECTORY DataDirectory[IMAGE_NUMBEROF_DIRECTORY_ENTRIES]; /* 0x60 */ 228 /* 0xE0 */ 229 } IMAGE_OPTIONAL_HEADER, *PIMAGE_OPTIONAL_HEADER; 230 231 typedef struct _IMAGE_NT_HEADERS { 232 unsigned long Signature; /* "PE"\0\0 */ /* 0x00 */ 233 IMAGE_FILE_HEADER FileHeader; /* 0x04 */ 234 IMAGE_OPTIONAL_HEADER OptionalHeader; /* 0x18 */ 235 } IMAGE_NT_HEADERS, *PIMAGE_NT_HEADERS; 236 237 #define IMAGE_SIZEOF_SHORT_NAME 8 238 239 typedef struct _IMAGE_SECTION_HEADER { 240 unsigned char Name[IMAGE_SIZEOF_SHORT_NAME]; 241 union { 242 unsigned long PhysicalAddress; 243 unsigned long VirtualSize; 244 } Misc; 245 unsigned long VirtualAddress; 246 unsigned long SizeOfRawData; 247 unsigned long PointerToRawData; 248 unsigned long PointerToRelocations; 249 unsigned long PointerToLinenumbers; 250 unsigned short NumberOfRelocations; 251 unsigned short NumberOfLinenumbers; 252 unsigned long Characteristics; 253 } IMAGE_SECTION_HEADER, *PIMAGE_SECTION_HEADER; 254 255 #define IMAGE_SIZEOF_SECTION_HEADER 40 256 257 #define IMAGE_FIRST_SECTION(ntheader) \ 258 ((PIMAGE_SECTION_HEADER)((LPunsigned char)&((PIMAGE_NT_HEADERS)(ntheader))->OptionalHeader + \ 259 ((PIMAGE_NT_HEADERS)(ntheader))->FileHeader.SizeOfOptionalHeader)) 260 261 /* These defines are for the Characteristics bitfield. */ 262 /* #define IMAGE_SCN_TYPE_REG 0x00000000 - Reserved */ 263 /* #define IMAGE_SCN_TYPE_DSECT 0x00000001 - Reserved */ 264 /* #define IMAGE_SCN_TYPE_NOLOAD 0x00000002 - Reserved */ 265 /* #define IMAGE_SCN_TYPE_GROUP 0x00000004 - Reserved */ 266 /* #define IMAGE_SCN_TYPE_NO_PAD 0x00000008 - Reserved */ 267 /* #define IMAGE_SCN_TYPE_COPY 0x00000010 - Reserved */ 268 269 #define IMAGE_SCN_CNT_CODE 0x00000020 270 #define IMAGE_SCN_CNT_INITIALIZED_DATA 0x00000040 271 #define IMAGE_SCN_CNT_UNINITIALIZED_DATA 0x00000080 272 273 #define IMAGE_SCN_LNK_OTHER 0x00000100 274 #define IMAGE_SCN_LNK_INFO 0x00000200 275 /* #define IMAGE_SCN_TYPE_OVER 0x00000400 - Reserved */ 276 #define IMAGE_SCN_LNK_REMOVE 0x00000800 277 #define IMAGE_SCN_LNK_COMDAT 0x00001000 278 279 /* 0x00002000 - Reserved */ 280 /* #define IMAGE_SCN_MEM_PROTECTED 0x00004000 - Obsolete */ 281 #define IMAGE_SCN_MEM_FARDATA 0x00008000 282 283 /* #define IMAGE_SCN_MEM_SYSHEAP 0x00010000 - Obsolete */ 284 #define IMAGE_SCN_MEM_PURGEABLE 0x00020000 285 #define IMAGE_SCN_MEM_16BIT 0x00020000 286 #define IMAGE_SCN_MEM_LOCKED 0x00040000 287 #define IMAGE_SCN_MEM_PRELOAD 0x00080000 288 289 #define IMAGE_SCN_ALIGN_1BYTES 0x00100000 290 #define IMAGE_SCN_ALIGN_2BYTES 0x00200000 291 #define IMAGE_SCN_ALIGN_4BYTES 0x00300000 292 #define IMAGE_SCN_ALIGN_8BYTES 0x00400000 293 #define IMAGE_SCN_ALIGN_16BYTES 0x00500000 /* Default */ 294 #define IMAGE_SCN_ALIGN_32BYTES 0x00600000 295 #define IMAGE_SCN_ALIGN_64BYTES 0x00700000 296 /* 0x00800000 - Unused */ 297 298 #define IMAGE_SCN_LNK_NRELOC_OVFL 0x01000000 299 300 301 #define IMAGE_SCN_MEM_DISCARDABLE 0x02000000 302 #define IMAGE_SCN_MEM_NOT_CACHED 0x04000000 303 #define IMAGE_SCN_MEM_NOT_PAGED 0x08000000 304 #define IMAGE_SCN_MEM_SHARED 0x10000000 305 #define IMAGE_SCN_MEM_EXECUTE 0x20000000 306 #define IMAGE_SCN_MEM_READ 0x40000000 307 #define IMAGE_SCN_MEM_WRITE 0x80000000 308 309 #pragma pack() 310 311 typedef struct _GUID /* 16 bytes */ 312 { 313 unsigned int Data1; 314 unsigned short Data2; 315 unsigned short Data3; 316 unsigned char Data4[ 8 ]; 317 } GUID; 318 319 /*======================================================================== 320 * Process PDB file. 321 */ 322 323 #pragma pack(1) 324 typedef struct _PDB_FILE 325 { 326 unsigned long size; 327 unsigned long unknown; 328 329 } PDB_FILE, *PPDB_FILE; 330 331 // A .pdb file begins with a variable-length one-line text string 332 // that ends in "\r\n\032". This is followed by a 4-byte "signature" 333 // ("DS\0\0" for newer files, "JG\0\0" for older files), then 334 // aligned up to a 4-byte boundary, then the struct below: 335 struct PDB_JG_HEADER 336 { 337 //char ident[40]; // "Microsoft C/C++ program database 2.00\r\n\032" 338 //unsigned long signature; // "JG\0\0" 339 unsigned int blocksize; // 0x400 typical; also 0x800, 0x1000 340 unsigned short freelist; 341 unsigned short total_alloc; 342 PDB_FILE toc; 343 unsigned short toc_block[ 1 ]; 344 }; 345 346 struct PDB_DS_HEADER 347 { 348 //char signature[32]; // "Microsoft C/C++ MSF 7.00\r\n\032DS\0\0" 349 unsigned int block_size; 350 unsigned int unknown1; 351 unsigned int num_pages; 352 unsigned int toc_size; 353 unsigned int unknown2; 354 unsigned int toc_page; 355 }; 356 357 struct PDB_JG_TOC 358 { 359 unsigned int nFiles; 360 PDB_FILE file[ 1 ]; 361 362 }; 363 364 struct PDB_DS_TOC 365 { 366 unsigned int num_files; 367 unsigned int file_size[1]; 368 }; 369 370 struct PDB_JG_ROOT 371 { 372 unsigned int version; 373 unsigned int TimeDateStamp; 374 unsigned int age; 375 unsigned int cbNames; 376 char names[ 1 ]; 377 }; 378 379 struct PDB_DS_ROOT 380 { 381 unsigned int version; 382 unsigned int TimeDateStamp; 383 unsigned int age; 384 GUID guid; 385 unsigned int cbNames; 386 char names[1]; 387 }; 388 389 typedef struct _PDB_TYPES_OLD 390 { 391 unsigned long version; 392 unsigned short first_index; 393 unsigned short last_index; 394 unsigned long type_size; 395 unsigned short file; 396 unsigned short pad; 397 398 } PDB_TYPES_OLD, *PPDB_TYPES_OLD; 399 400 typedef struct _PDB_TYPES 401 { 402 unsigned long version; 403 unsigned long type_offset; 404 unsigned long first_index; 405 unsigned long last_index; 406 unsigned long type_size; 407 unsigned short file; 408 unsigned short pad; 409 unsigned long hash_size; 410 unsigned long hash_base; 411 unsigned long hash_offset; 412 unsigned long hash_len; 413 unsigned long search_offset; 414 unsigned long search_len; 415 unsigned long unknown_offset; 416 unsigned long unknown_len; 417 418 } PDB_TYPES, *PPDB_TYPES; 419 420 typedef struct _PDB_SYMBOL_RANGE 421 { 422 unsigned short segment; 423 unsigned short pad1; 424 unsigned long offset; 425 unsigned long size; 426 unsigned long characteristics; 427 unsigned short index; 428 unsigned short pad2; 429 430 } PDB_SYMBOL_RANGE, *PPDB_SYMBOL_RANGE; 431 432 typedef struct _PDB_SYMBOL_RANGE_EX 433 { 434 unsigned short segment; 435 unsigned short pad1; 436 unsigned long offset; 437 unsigned long size; 438 unsigned long characteristics; 439 unsigned short index; 440 unsigned short pad2; 441 unsigned long timestamp; 442 unsigned long unknown; 443 444 } PDB_SYMBOL_RANGE_EX, *PPDB_SYMBOL_RANGE_EX; 445 446 typedef struct _PDB_SYMBOL_FILE 447 { 448 unsigned long unknown1; 449 PDB_SYMBOL_RANGE range; 450 unsigned short flag; 451 unsigned short file; 452 unsigned long symbol_size; 453 unsigned long lineno_size; 454 unsigned long unknown2; 455 unsigned long nSrcFiles; 456 unsigned long attribute; 457 char filename[ 1 ]; 458 459 } PDB_SYMBOL_FILE, *PPDB_SYMBOL_FILE; 460 461 typedef struct _PDB_SYMBOL_FILE_EX 462 { 463 unsigned long unknown1; 464 PDB_SYMBOL_RANGE_EX range; 465 unsigned short flag; 466 unsigned short file; 467 unsigned long symbol_size; 468 unsigned long lineno_size; 469 unsigned long unknown2; 470 unsigned long nSrcFiles; 471 unsigned long attribute; 472 unsigned long reserved[ 2 ]; 473 char filename[ 1 ]; 474 475 } PDB_SYMBOL_FILE_EX, *PPDB_SYMBOL_FILE_EX; 476 477 typedef struct _PDB_SYMBOL_SOURCE 478 { 479 unsigned short nModules; 480 unsigned short nSrcFiles; 481 unsigned short table[ 1 ]; 482 483 } PDB_SYMBOL_SOURCE, *PPDB_SYMBOL_SOURCE; 484 485 typedef struct _PDB_SYMBOL_IMPORT 486 { 487 unsigned long unknown1; 488 unsigned long unknown2; 489 unsigned long TimeDateStamp; 490 unsigned long nRequests; 491 char filename[ 1 ]; 492 493 } PDB_SYMBOL_IMPORT, *PPDB_SYMBOL_IMPORT; 494 495 typedef struct _PDB_SYMBOLS_OLD 496 { 497 unsigned short hash1_file; 498 unsigned short hash2_file; 499 unsigned short gsym_file; 500 unsigned short pad; 501 unsigned long module_size; 502 unsigned long offset_size; 503 unsigned long hash_size; 504 unsigned long srcmodule_size; 505 506 } PDB_SYMBOLS_OLD, *PPDB_SYMBOLS_OLD; 507 508 typedef struct _PDB_SYMBOLS 509 { 510 unsigned long signature; 511 unsigned long version; 512 unsigned long unknown; 513 unsigned long hash1_file; 514 unsigned long hash2_file; 515 unsigned long gsym_file; 516 unsigned long module_size; 517 unsigned long offset_size; 518 unsigned long hash_size; 519 unsigned long srcmodule_size; 520 unsigned long pdbimport_size; 521 unsigned long resvd[ 5 ]; 522 523 } PDB_SYMBOLS, *PPDB_SYMBOLS; 524 #pragma pack() 525 526 /*======================================================================== 527 * Process CodeView symbol information. 528 */ 529 530 /* from wine-1.0/include/wine/mscvpdb.h */ 531 532 struct p_string /* "Pascal string": prefixed by byte containing length */ 533 { 534 unsigned char namelen; 535 char name[1]; 536 }; 537 /* The other kind of "char name[1]" is a "C++ string" terminated by '\0'. 538 * "Name mangling" to encode type information often exceeds 255 bytes. 539 * Instead of using a 2-byte explicit length, they save one byte of space 540 * but incur a strlen(). This is justified by other code that wants 541 * a "C string" [terminated by '\0'] anyway. 542 */ 543 544 union codeview_symbol 545 { 546 struct 547 { 548 short int len; 549 short int id; 550 } generic; 551 552 struct 553 { 554 short int len; 555 short int id; 556 unsigned int offset; 557 unsigned short segment; 558 unsigned short symtype; 559 struct p_string p_name; 560 } data_v1; 561 562 struct 563 { 564 short int len; 565 short int id; 566 unsigned int symtype; 567 unsigned int offset; 568 unsigned short segment; 569 struct p_string p_name; 570 } data_v2; 571 572 struct 573 { 574 short int len; 575 short int id; 576 unsigned int symtype; 577 unsigned int offset; 578 unsigned short segment; 579 char name[1]; /* terminated by '\0' */ 580 } data_v3; 581 582 struct 583 { 584 short int len; 585 short int id; 586 unsigned int pparent; 587 unsigned int pend; 588 unsigned int next; 589 unsigned int offset; 590 unsigned short segment; 591 unsigned short thunk_len; 592 unsigned char thtype; 593 struct p_string p_name; 594 } thunk_v1; 595 596 struct 597 { 598 short int len; 599 short int id; 600 unsigned int pparent; 601 unsigned int pend; 602 unsigned int next; 603 unsigned int offset; 604 unsigned short segment; 605 unsigned short thunk_len; 606 unsigned char thtype; 607 char name[1]; /* terminated by '\0' */ 608 } thunk_v3; 609 610 struct 611 { 612 short int len; 613 short int id; 614 unsigned int pparent; 615 unsigned int pend; 616 unsigned int next; 617 unsigned int proc_len; 618 unsigned int debug_start; 619 unsigned int debug_end; 620 unsigned int offset; 621 unsigned short segment; 622 unsigned short proctype; 623 unsigned char flags; 624 struct p_string p_name; 625 } proc_v1; 626 627 struct 628 { 629 short int len; 630 short int id; 631 unsigned int pparent; 632 unsigned int pend; 633 unsigned int next; 634 unsigned int proc_len; 635 unsigned int debug_start; 636 unsigned int debug_end; 637 unsigned int proctype; 638 unsigned int offset; 639 unsigned short segment; 640 unsigned char flags; 641 struct p_string p_name; 642 } proc_v2; 643 644 struct 645 { 646 short int len; 647 short int id; 648 unsigned int pparent; 649 unsigned int pend; 650 unsigned int next; 651 unsigned int proc_len; 652 unsigned int debug_start; 653 unsigned int debug_end; 654 unsigned int proctype; 655 unsigned int offset; 656 unsigned short segment; 657 unsigned char flags; 658 char name[1]; /* terminated by '\0' */ 659 } proc_v3; 660 661 struct 662 { 663 short int len; 664 short int id; 665 unsigned int symtype; 666 unsigned int offset; 667 unsigned short segment; 668 struct p_string p_name; 669 } public_v2; 670 671 struct 672 { 673 short int len; 674 short int id; 675 unsigned int symtype; 676 unsigned int offset; 677 unsigned short segment; 678 char name[1]; /* terminated by '\0' */ 679 } public_v3; 680 681 struct 682 { 683 short int len; /* Total length of this entry */ 684 short int id; /* Always S_BPREL_V1 */ 685 unsigned int offset; /* Stack offset relative to BP */ 686 unsigned short symtype; 687 struct p_string p_name; 688 } stack_v1; 689 690 struct 691 { 692 short int len; /* Total length of this entry */ 693 short int id; /* Always S_BPREL_V2 */ 694 unsigned int offset; /* Stack offset relative to EBP */ 695 unsigned int symtype; 696 struct p_string p_name; 697 } stack_v2; 698 699 struct 700 { 701 short int len; /* Total length of this entry */ 702 short int id; /* Always S_BPREL_V3 */ 703 int offset; /* Stack offset relative to BP */ 704 unsigned int symtype; 705 char name[1]; /* terminated by '\0' */ 706 } stack_v3; 707 708 struct 709 { 710 short int len; /* Total length of this entry */ 711 short int id; /* Always S_BPREL_V3 */ 712 int offset; /* Stack offset relative to BP */ 713 unsigned int symtype; 714 unsigned short unknown; 715 char name[1]; /* terminated by '\0' */ 716 } stack_xxxx_v3; 717 718 struct 719 { 720 short int len; /* Total length of this entry */ 721 short int id; /* Always S_REGISTER */ 722 unsigned short type; 723 unsigned short reg; 724 struct p_string p_name; 725 /* don't handle register tracking */ 726 } register_v1; 727 728 struct 729 { 730 short int len; /* Total length of this entry */ 731 short int id; /* Always S_REGISTER_V2 */ 732 unsigned int type; /* check whether type & reg are correct */ 733 unsigned short reg; 734 struct p_string p_name; 735 /* don't handle register tracking */ 736 } register_v2; 737 738 struct 739 { 740 short int len; /* Total length of this entry */ 741 short int id; /* Always S_REGISTER_V3 */ 742 unsigned int type; /* check whether type & reg are correct */ 743 unsigned short reg; 744 char name[1]; /* terminated by '\0' */ 745 /* don't handle register tracking */ 746 } register_v3; 747 748 struct 749 { 750 short int len; 751 short int id; 752 unsigned int parent; 753 unsigned int end; 754 unsigned int length; 755 unsigned int offset; 756 unsigned short segment; 757 struct p_string p_name; 758 } block_v1; 759 760 struct 761 { 762 short int len; 763 short int id; 764 unsigned int parent; 765 unsigned int end; 766 unsigned int length; 767 unsigned int offset; 768 unsigned short segment; 769 char name[1]; /* terminated by '\0' */ 770 } block_v3; 771 772 struct 773 { 774 short int len; 775 short int id; 776 unsigned int offset; 777 unsigned short segment; 778 unsigned char flags; 779 struct p_string p_name; 780 } label_v1; 781 782 struct 783 { 784 short int len; 785 short int id; 786 unsigned int offset; 787 unsigned short segment; 788 unsigned char flags; 789 char name[1]; /* terminated by '\0' */ 790 } label_v3; 791 792 struct 793 { 794 short int len; 795 short int id; 796 unsigned short type; 797 unsigned short cvalue; /* numeric leaf */ 798 #if 0 799 struct p_string p_name; 800 #endif 801 } constant_v1; 802 803 struct 804 { 805 short int len; 806 short int id; 807 unsigned type; 808 unsigned short cvalue; /* numeric leaf */ 809 #if 0 810 struct p_string p_name; 811 #endif 812 } constant_v2; 813 814 struct 815 { 816 short int len; 817 short int id; 818 unsigned type; 819 unsigned short cvalue; 820 #if 0 821 char name[1]; /* terminated by '\0' */ 822 #endif 823 } constant_v3; 824 825 struct 826 { 827 short int len; 828 short int id; 829 unsigned short type; 830 struct p_string p_name; 831 } udt_v1; 832 833 struct 834 { 835 short int len; 836 short int id; 837 unsigned type; 838 struct p_string p_name; 839 } udt_v2; 840 841 struct 842 { 843 short int len; 844 short int id; 845 unsigned int type; 846 char name[1]; /* terminated by '\0' */ 847 } udt_v3; 848 849 struct 850 { 851 short int len; 852 short int id; 853 char signature[4]; 854 struct p_string p_name; 855 } objname_v1; 856 857 struct 858 { 859 short int len; 860 short int id; 861 unsigned int unknown; 862 struct p_string p_name; 863 } compiland_v1; 864 865 struct 866 { 867 short int len; 868 short int id; 869 unsigned unknown1[4]; 870 unsigned short unknown2; 871 struct p_string p_name; 872 } compiland_v2; 873 874 struct 875 { 876 short int len; 877 short int id; 878 unsigned int unknown; 879 char name[1]; /* terminated by '\0' */ 880 } compiland_v3; 881 882 struct 883 { 884 short int len; 885 short int id; 886 unsigned int offset; 887 unsigned short segment; 888 } ssearch_v1; 889 }; 890 891 #define S_COMPILAND_V1 0x0001 892 #define S_REGISTER_V1 0x0002 893 #define S_CONSTANT_V1 0x0003 894 #define S_UDT_V1 0x0004 895 #define S_SSEARCH_V1 0x0005 896 #define S_END_V1 0x0006 897 #define S_SKIP_V1 0x0007 898 #define S_CVRESERVE_V1 0x0008 899 #define S_OBJNAME_V1 0x0009 900 #define S_ENDARG_V1 0x000a 901 #define S_COBOLUDT_V1 0x000b 902 #define S_MANYREG_V1 0x000c 903 #define S_RETURN_V1 0x000d 904 #define S_ENTRYTHIS_V1 0x000e 905 906 #define S_BPREL_V1 0x0200 907 #define S_LDATA_V1 0x0201 908 #define S_GDATA_V1 0x0202 909 #define S_PUB_V1 0x0203 910 #define S_LPROC_V1 0x0204 911 #define S_GPROC_V1 0x0205 912 #define S_THUNK_V1 0x0206 913 #define S_BLOCK_V1 0x0207 914 #define S_WITH_V1 0x0208 915 #define S_LABEL_V1 0x0209 916 #define S_CEXMODEL_V1 0x020a 917 #define S_VFTPATH_V1 0x020b 918 #define S_REGREL_V1 0x020c 919 #define S_LTHREAD_V1 0x020d 920 #define S_GTHREAD_V1 0x020e 921 922 #define S_PROCREF_V1 0x0400 923 #define S_DATAREF_V1 0x0401 924 #define S_ALIGN_V1 0x0402 925 #define S_LPROCREF_V1 0x0403 926 927 #define S_REGISTER_V2 0x1001 /* Variants with new 32-bit type indices */ 928 #define S_CONSTANT_V2 0x1002 929 #define S_UDT_V2 0x1003 930 #define S_COBOLUDT_V2 0x1004 931 #define S_MANYREG_V2 0x1005 932 #define S_BPREL_V2 0x1006 933 #define S_LDATA_V2 0x1007 934 #define S_GDATA_V2 0x1008 935 #define S_PUB_V2 0x1009 936 #define S_LPROC_V2 0x100a 937 #define S_GPROC_V2 0x100b 938 #define S_VFTTABLE_V2 0x100c 939 #define S_REGREL_V2 0x100d 940 #define S_LTHREAD_V2 0x100e 941 #define S_GTHREAD_V2 0x100f 942 #if 0 943 #define S_XXXXXXXXX_32 0x1012 /* seems linked to a function, content unknown */ 944 #endif 945 #define S_COMPILAND_V2 0x1013 946 947 #define S_COMPILAND_V3 0x1101 948 #define S_THUNK_V3 0x1102 949 #define S_BLOCK_V3 0x1103 950 #define S_LABEL_V3 0x1105 951 #define S_REGISTER_V3 0x1106 952 #define S_CONSTANT_V3 0x1107 953 #define S_UDT_V3 0x1108 954 #define S_BPREL_V3 0x110B 955 #define S_LDATA_V3 0x110C 956 #define S_GDATA_V3 0x110D 957 #define S_PUB_V3 0x110E 958 #define S_LPROC_V3 0x110F 959 #define S_GPROC_V3 0x1110 960 #define S_BPREL_XXXX_V3 0x1111 /* not really understood, but looks like bprel... */ 961 #define S_MSTOOL_V3 0x1116 /* compiler command line options and build information */ 962 #define S_PUB_FUNC1_V3 0x1125 /* didn't get the difference between the two */ 963 #define S_PUB_FUNC2_V3 0x1127 964 965 966 /*------------------------------------------------------------*/ 967 /*--- ---*/ 968 /*--- pdb-reading: bits and pieces ---*/ 969 /*--- ---*/ 970 /*------------------------------------------------------------*/ 971 972 struct pdb_reader 973 { 974 void* (*read_file)(struct pdb_reader*, unsigned, unsigned *); 975 // JRS 2009-Apr-8: .uu_n_pdbimage is never used. 976 UChar* pdbimage; // image address 977 SizeT uu_n_pdbimage; // size 978 union { 979 struct { 980 struct PDB_JG_HEADER* header; 981 struct PDB_JG_TOC* toc; 982 } jg; 983 struct { 984 struct PDB_DS_HEADER* header; 985 struct PDB_DS_TOC* toc; 986 } ds; 987 } u; 988 }; 989 990 991 static void* pdb_ds_read( struct pdb_reader* pdb, 992 unsigned* block_list, 993 unsigned size ) 994 { 995 unsigned blocksize, nBlocks; 996 UChar* buffer; 997 UInt i; 998 999 if (!size) return NULL; 1000 if (size > 512 * 1024 * 1024) { 1001 VG_(umsg)("Warning: pdb_ds_read: implausible size " 1002 "(%u); skipping -- possible invalid .pdb file?\n", size); 1003 return NULL; 1004 } 1005 1006 blocksize = pdb->u.ds.header->block_size; 1007 nBlocks = (size + blocksize - 1) / blocksize; 1008 buffer = ML_(dinfo_zalloc)("di.readpe.pdr.1", nBlocks * blocksize); 1009 for (i = 0; i < nBlocks; i++) 1010 VG_(memcpy)( buffer + i * blocksize, 1011 pdb->pdbimage + block_list[i] * blocksize, 1012 blocksize ); 1013 return buffer; 1014 } 1015 1016 1017 static void* pdb_jg_read( struct pdb_reader* pdb, 1018 unsigned short* block_list, 1019 int size ) 1020 { 1021 unsigned blocksize, nBlocks; 1022 UChar* buffer; 1023 UInt i; 1024 //VG_(printf)("pdb_read %p %p %d\n", pdb, block_list, size); 1025 if ( !size ) return NULL; 1026 1027 blocksize = pdb->u.jg.header->blocksize; 1028 nBlocks = (size + blocksize-1) / blocksize; 1029 buffer = ML_(dinfo_zalloc)("di.readpe.pjr.1", nBlocks * blocksize); 1030 for ( i = 0; i < nBlocks; i++ ) 1031 VG_(memcpy)( buffer + i*blocksize, 1032 pdb->pdbimage + block_list[i]*blocksize, blocksize ); 1033 return buffer; 1034 } 1035 1036 1037 static void* find_pdb_header( UChar* pdbimage, 1038 unsigned* signature ) 1039 { 1040 static char pdbtxt[]= "Microsoft C/C++"; 1041 UChar* txteof = (UChar*)VG_(strchr)(pdbimage, '\032'); 1042 if (! txteof) 1043 return NULL; 1044 if (0!=VG_(strncmp)(pdbimage, pdbtxt, -1+ sizeof(pdbtxt))) 1045 return NULL; 1046 1047 *signature = *(unsigned*)(1+ txteof); 1048 return (void*)((~3& (3+ (4+ 1+ (txteof - pdbimage)))) + pdbimage); 1049 } 1050 1051 1052 static void* pdb_ds_read_file( struct pdb_reader* reader, 1053 unsigned file_number, 1054 unsigned* plength ) 1055 { 1056 unsigned i, *block_list; 1057 if (!reader->u.ds.toc || file_number >= reader->u.ds.toc->num_files) 1058 return NULL; 1059 if (reader->u.ds.toc->file_size[file_number] == 0 1060 || reader->u.ds.toc->file_size[file_number] == 0xFFFFFFFF) 1061 return NULL; 1062 1063 block_list 1064 = reader->u.ds.toc->file_size + reader->u.ds.toc->num_files; 1065 for (i = 0; i < file_number; i++) 1066 block_list += (reader->u.ds.toc->file_size[i] 1067 + reader->u.ds.header->block_size - 1) 1068 / 1069 reader->u.ds.header->block_size; 1070 if (plength) 1071 *plength = reader->u.ds.toc->file_size[file_number]; 1072 return pdb_ds_read( reader, block_list, 1073 reader->u.ds.toc->file_size[file_number]); 1074 } 1075 1076 1077 static void* pdb_jg_read_file( struct pdb_reader* pdb, 1078 unsigned fileNr, 1079 unsigned *plength ) 1080 { 1081 //VG_(printf)("pdb_read_file %p %d\n", pdb, fileNr); 1082 unsigned blocksize = pdb->u.jg.header->blocksize; 1083 struct PDB_JG_TOC* toc = pdb->u.jg.toc; 1084 unsigned i; 1085 unsigned short* block_list; 1086 1087 if ( !toc || fileNr >= toc->nFiles ) 1088 return NULL; 1089 1090 block_list 1091 = (unsigned short *) &toc->file[ toc->nFiles ]; 1092 for ( i = 0; i < fileNr; i++ ) 1093 block_list += (toc->file[i].size + blocksize-1) / blocksize; 1094 1095 if (plength) 1096 *plength = toc->file[fileNr].size; 1097 return pdb_jg_read( pdb, block_list, toc->file[fileNr].size ); 1098 } 1099 1100 1101 static void pdb_ds_init( struct pdb_reader * reader, 1102 UChar* pdbimage, 1103 SizeT n_pdbimage ) 1104 { 1105 reader->read_file = pdb_ds_read_file; 1106 reader->pdbimage = pdbimage; 1107 reader->uu_n_pdbimage = n_pdbimage; 1108 reader->u.ds.toc 1109 = pdb_ds_read( 1110 reader, 1111 (unsigned*)(reader->u.ds.header->block_size 1112 * reader->u.ds.header->toc_page 1113 + reader->pdbimage), 1114 reader->u.ds.header->toc_size 1115 ); 1116 } 1117 1118 1119 static void pdb_jg_init( struct pdb_reader* reader, 1120 char* pdbimage, 1121 unsigned n_pdbimage ) 1122 { 1123 reader->read_file = pdb_jg_read_file; 1124 reader->pdbimage = pdbimage; 1125 reader->uu_n_pdbimage = n_pdbimage; 1126 reader->u.jg.toc = pdb_jg_read(reader, 1127 reader->u.jg.header->toc_block, 1128 reader->u.jg.header->toc.size); 1129 } 1130 1131 1132 1133 1134 static 1135 void pdb_check_root_version_and_timestamp( char* pdbname, 1136 ULong pdbmtime, 1137 unsigned version, 1138 UInt TimeDateStamp ) 1139 { 1140 switch ( version ) { 1141 case 19950623: /* VC 4.0 */ 1142 case 19950814: 1143 case 19960307: /* VC 5.0 */ 1144 case 19970604: /* VC 6.0 */ 1145 case 20000404: /* VC 7.0 FIXME?? */ 1146 break; 1147 default: 1148 if (VG_(clo_verbosity) > 1) 1149 VG_(message)(Vg_UserMsg, 1150 "Unknown .pdb root block version %d\n", version ); 1151 } 1152 if ( TimeDateStamp != pdbmtime ) { 1153 if (VG_(clo_verbosity) > 1) 1154 VG_(message)(Vg_UserMsg, 1155 "Wrong time stamp of .PDB file %s (0x%08x, 0x%08llx)\n", 1156 pdbname, TimeDateStamp, pdbmtime ); 1157 } 1158 } 1159 1160 1161 static DWORD pdb_get_file_size( struct pdb_reader* reader, unsigned idx ) 1162 { 1163 if (reader->read_file == pdb_jg_read_file) 1164 return reader->u.jg.toc->file[idx].size; 1165 else 1166 return reader->u.ds.toc->file_size[idx]; 1167 } 1168 1169 1170 static void pdb_convert_types_header( PDB_TYPES *types, char* image ) 1171 { 1172 VG_(memset)( types, 0, sizeof(PDB_TYPES) ); 1173 if ( !image ) 1174 return; 1175 if ( *(unsigned long *)image < 19960000 ) { /* FIXME: correct version? */ 1176 /* Old version of the types record header */ 1177 PDB_TYPES_OLD *old = (PDB_TYPES_OLD *)image; 1178 types->version = old->version; 1179 types->type_offset = sizeof(PDB_TYPES_OLD); 1180 types->type_size = old->type_size; 1181 types->first_index = old->first_index; 1182 types->last_index = old->last_index; 1183 types->file = old->file; 1184 } else { 1185 /* New version of the types record header */ 1186 *types = *(PDB_TYPES *)image; 1187 } 1188 } 1189 1190 1191 static void pdb_convert_symbols_header( PDB_SYMBOLS *symbols, 1192 int *header_size, char* image ) 1193 { 1194 VG_(memset)( symbols, 0, sizeof(PDB_SYMBOLS) ); 1195 if ( !image ) 1196 return; 1197 if ( *(unsigned long *)image != 0xffffffff ) { 1198 /* Old version of the symbols record header */ 1199 PDB_SYMBOLS_OLD *old = (PDB_SYMBOLS_OLD *)image; 1200 symbols->version = 0; 1201 symbols->module_size = old->module_size; 1202 symbols->offset_size = old->offset_size; 1203 symbols->hash_size = old->hash_size; 1204 symbols->srcmodule_size = old->srcmodule_size; 1205 symbols->pdbimport_size = 0; 1206 symbols->hash1_file = old->hash1_file; 1207 symbols->hash2_file = old->hash2_file; 1208 symbols->gsym_file = old->gsym_file; 1209 *header_size = sizeof(PDB_SYMBOLS_OLD); 1210 } else { 1211 /* New version of the symbols record header */ 1212 *symbols = *(PDB_SYMBOLS *)image; 1213 *header_size = sizeof(PDB_SYMBOLS); 1214 } 1215 } 1216 1217 1218 /*------------------------------------------------------------*/ 1219 /*--- ---*/ 1220 /*--- Main stuff: reading of symbol addresses ---*/ 1221 /*--- ---*/ 1222 /*------------------------------------------------------------*/ 1223 1224 static ULong DEBUG_SnarfCodeView( 1225 DebugInfo* di, 1226 IMAGE_SECTION_HEADER* sectp, 1227 void* root, /* FIXME: better name */ 1228 Int offset, 1229 Int size 1230 ) 1231 { 1232 Int i, length; 1233 DiSym vsym; 1234 UChar* nmstr; 1235 Char symname[4096 /*WIN32_PATH_MAX*/]; 1236 1237 Bool debug = di->trace_symtab; 1238 Addr bias = BIAS_FOR_SYMBOLS; 1239 ULong n_syms_read = 0; 1240 1241 if (debug) 1242 VG_(message)(Vg_UserMsg, 1243 "BEGIN SnarfCodeView addr=%p offset=%d length=%d\n", 1244 root, offset, size ); 1245 1246 VG_(memset)(&vsym, 0, sizeof(vsym)); /* avoid holes */ 1247 /* 1248 * Loop over the different types of records and whenever we 1249 * find something we are interested in, record it and move on. 1250 */ 1251 for ( i = offset; i < size; i += length ) 1252 { 1253 union codeview_symbol *sym = (union codeview_symbol *)((char *)root + i); 1254 1255 length = sym->generic.len + 2; 1256 1257 //VG_(printf)("id=%x len=%d\n", sym->generic.id, length); 1258 switch ( sym->generic.id ) { 1259 1260 default: 1261 if (0) { 1262 VG_(printf)("unknown id 0x%x len=0x%x at %p\n", 1263 sym->generic.id, sym->generic.len, sym); 1264 VG_(printf)(" %8x %8x %8x %8x\n", 1265 ((int *)sym)[1],((int *)sym)[2], 1266 ((int *)sym)[3],((int *)sym)[4]); 1267 VG_(printf)(" %8x %8x %8x %8x\n", 1268 ((int *)sym)[5],((int *)sym)[6], 1269 ((int *)sym)[7],((int *)sym)[8]); 1270 } 1271 break; 1272 /* 1273 * Global and local data symbols. We don't associate these 1274 * with any given source file. 1275 */ 1276 case S_GDATA_V1: 1277 case S_LDATA_V1: 1278 case S_PUB_V1: 1279 VG_(memcpy)(symname, sym->data_v1.p_name.name, 1280 sym->data_v1.p_name.namelen); 1281 symname[sym->data_v1.p_name.namelen] = '\0'; 1282 1283 if (debug) 1284 VG_(message)(Vg_UserMsg, " Data %s\n", symname ); 1285 1286 if (0 /*VG_(needs).data_syms*/) { 1287 nmstr = ML_(addStr)(di, symname, sym->data_v1.p_name.namelen); 1288 1289 vsym.addr = bias + sectp[sym->data_v1.segment-1].VirtualAddress 1290 + sym->data_v1.offset; 1291 vsym.name = nmstr; 1292 vsym.size = sym->data_v1.p_name.namelen; 1293 // FIXME: .namelen is sizeof(.data) including .name[] 1294 vsym.isText = (sym->generic.id == S_PUB_V1); 1295 vsym.isIFunc = False; 1296 ML_(addSym)( di, &vsym ); 1297 n_syms_read++; 1298 } 1299 break; 1300 case S_GDATA_V2: 1301 case S_LDATA_V2: 1302 case S_PUB_V2: { 1303 Int const k = sym->data_v2.p_name.namelen; 1304 VG_(memcpy)(symname, sym->data_v2.p_name.name, k); 1305 symname[k] = '\0'; 1306 1307 if (debug) 1308 VG_(message)(Vg_UserMsg, 1309 " S_GDATA_V2/S_LDATA_V2/S_PUB_V2 %s\n", symname ); 1310 1311 if (sym->generic.id==S_PUB_V2 /*VG_(needs).data_syms*/) { 1312 nmstr = ML_(addStr)(di, symname, k); 1313 1314 vsym.addr = bias + sectp[sym->data_v2.segment-1].VirtualAddress 1315 + sym->data_v2.offset; 1316 vsym.name = nmstr; 1317 vsym.size = 4000; 1318 // FIXME: data_v2.len is sizeof(.data), 1319 // not size of function! 1320 vsym.isText = !!(IMAGE_SCN_CNT_CODE 1321 & sectp[sym->data_v2.segment-1].Characteristics); 1322 vsym.isIFunc = False; 1323 ML_(addSym)( di, &vsym ); 1324 n_syms_read++; 1325 } 1326 break; 1327 } 1328 case S_PUB_V3: 1329 /* not completely sure of those two anyway */ 1330 case S_PUB_FUNC1_V3: 1331 case S_PUB_FUNC2_V3: { 1332 Int k = sym->public_v3.len - (-1+ sizeof(sym->public_v3)); 1333 if ((-1+ sizeof(symname)) < k) 1334 k = -1+ sizeof(symname); 1335 VG_(memcpy)(symname, sym->public_v3.name, k); 1336 symname[k] = '\0'; 1337 1338 if (debug) 1339 VG_(message)(Vg_UserMsg, 1340 " S_PUB_FUNC1_V3/S_PUB_FUNC2_V3/S_PUB_V3 %s\n", 1341 symname ); 1342 1343 if (1 /*sym->generic.id==S_PUB_FUNC1_V3 1344 || sym->generic.id==S_PUB_FUNC2_V3*/) { 1345 nmstr = ML_(addStr)(di, symname, k); 1346 1347 vsym.addr = bias + sectp[sym->public_v3.segment-1].VirtualAddress 1348 + sym->public_v3.offset; 1349 vsym.name = nmstr; 1350 vsym.size = 4000; 1351 // FIXME: public_v3.len is not length of the 1352 // .text of the function 1353 vsym.isText = !!(IMAGE_SCN_CNT_CODE 1354 & sectp[sym->data_v2.segment-1].Characteristics); 1355 vsym.isIFunc = False; 1356 ML_(addSym)( di, &vsym ); 1357 n_syms_read++; 1358 } 1359 break; 1360 } 1361 1362 /* 1363 * Sort of like a global function, but it just points 1364 * to a thunk, which is a stupid name for what amounts to 1365 * a PLT slot in the normal jargon that everyone else uses. 1366 */ 1367 case S_THUNK_V3: 1368 case S_THUNK_V1: 1369 /* valgrind ignores PLTs */ /* JRS: it does? */ 1370 break; 1371 1372 /* 1373 * Global and static functions. 1374 */ 1375 case S_GPROC_V1: 1376 case S_LPROC_V1: 1377 VG_(memcpy)(symname, sym->proc_v1.p_name.name, 1378 sym->proc_v1.p_name.namelen); 1379 symname[sym->proc_v1.p_name.namelen] = '\0'; 1380 nmstr = ML_(addStr)(di, symname, sym->proc_v1.p_name.namelen); 1381 1382 vsym.addr = bias + sectp[sym->proc_v1.segment-1].VirtualAddress 1383 + sym->proc_v1.offset; 1384 vsym.name = nmstr; 1385 vsym.size = sym->proc_v1.proc_len; 1386 vsym.isText = True; 1387 vsym.isIFunc = False; 1388 if (debug) 1389 VG_(message)(Vg_UserMsg, 1390 " Adding function %s addr=%#lx length=%d\n", 1391 symname, vsym.addr, vsym.size ); 1392 ML_(addSym)( di, &vsym ); 1393 n_syms_read++; 1394 break; 1395 1396 case S_GPROC_V2: 1397 case S_LPROC_V2: 1398 VG_(memcpy)(symname, sym->proc_v2.p_name.name, 1399 sym->proc_v2.p_name.namelen); 1400 symname[sym->proc_v2.p_name.namelen] = '\0'; 1401 nmstr = ML_(addStr)(di, symname, sym->proc_v2.p_name.namelen); 1402 1403 vsym.addr = bias + sectp[sym->proc_v2.segment-1].VirtualAddress 1404 + sym->proc_v2.offset; 1405 vsym.name = nmstr; 1406 vsym.size = sym->proc_v2.proc_len; 1407 vsym.isText = True; 1408 vsym.isIFunc = False; 1409 if (debug) 1410 VG_(message)(Vg_UserMsg, 1411 " Adding function %s addr=%#lx length=%d\n", 1412 symname, vsym.addr, vsym.size ); 1413 ML_(addSym)( di, &vsym ); 1414 n_syms_read++; 1415 break; 1416 case S_LPROC_V3: 1417 case S_GPROC_V3: { 1418 if (debug) 1419 VG_(message)(Vg_UserMsg, 1420 " S_LPROC_V3/S_GPROC_V3 %s\n", sym->proc_v3.name ); 1421 1422 if (1) { 1423 nmstr = ML_(addStr)(di, sym->proc_v3.name, 1424 VG_(strlen)(sym->proc_v3.name)); 1425 1426 vsym.addr = bias + sectp[sym->proc_v3.segment-1].VirtualAddress 1427 + sym->proc_v3.offset; 1428 vsym.name = nmstr; 1429 vsym.size = sym->proc_v3.proc_len; 1430 vsym.isText = 1; 1431 vsym.isIFunc = False; 1432 ML_(addSym)( di, &vsym ); 1433 n_syms_read++; 1434 } 1435 break; 1436 } 1437 /* JRS: how is flow supposed to arrive at commented out code below? */ 1438 //if (nest_block) 1439 //{ 1440 // printf(">>> prev func '%s' still has nest_block %u count\n", 1441 // curr_func, nest_block); 1442 // nest_block = 0; 1443 //} 1444 //curr_func = strdup(sym->proc_v3.name); 1445 /* EPP unsigned int pparent; */ 1446 /* EPP unsigned int pend; */ 1447 /* EPP unsigned int next; */ 1448 /* EPP unsigned int debug_start; */ 1449 /* EPP unsigned int debug_end; */ 1450 /* EPP unsigned char flags; */ 1451 // break; 1452 1453 1454 /* 1455 * Function parameters and stack variables. 1456 */ 1457 case S_BPREL_XXXX_V3: 1458 case S_BPREL_V3: 1459 case S_BPREL_V2: 1460 case S_BPREL_V1: 1461 /* ignored */ 1462 break; 1463 1464 case S_LABEL_V3: // FIXME 1465 case S_LABEL_V1: 1466 break; 1467 1468 case S_SSEARCH_V1: 1469 case S_ALIGN_V1: 1470 case S_MSTOOL_V3: 1471 case S_UDT_V3: 1472 case S_UDT_V2: 1473 case S_UDT_V1: 1474 case S_CONSTANT_V3: 1475 case S_CONSTANT_V1: 1476 case S_OBJNAME_V1: 1477 case S_END_V1: 1478 case S_COMPILAND_V3: 1479 case S_COMPILAND_V2: 1480 case S_COMPILAND_V1: 1481 case S_BLOCK_V3: 1482 case S_BLOCK_V1: 1483 case S_REGISTER_V3: 1484 case S_REGISTER_V2: 1485 case S_REGISTER_V1: 1486 /* ignored */ 1487 break; 1488 1489 /* 1490 * These are special, in that they are always followed by an 1491 * additional length-prefixed string which is *not* included 1492 * into the symbol length count. We need to skip it. 1493 */ 1494 case S_PROCREF_V1: 1495 case S_DATAREF_V1: 1496 case S_LPROCREF_V1: { 1497 unsigned char *name = (unsigned char *)sym + length; 1498 length += (*name + 1 + 3) & ~3; 1499 break; 1500 } 1501 } /* switch ( sym->generic.id ) */ 1502 1503 } /* for ( i = offset; i < size; i += length ) */ 1504 1505 if (debug) 1506 VG_(message)(Vg_UserMsg, 1507 "END SnarfCodeView addr=%p offset=%d length=%d\n", 1508 root, offset, size ); 1509 return n_syms_read; 1510 } 1511 1512 1513 /*------------------------------------------------------------*/ 1514 /*--- ---*/ 1515 /*--- Main stuff: reading of line number tables ---*/ 1516 /*--- ---*/ 1517 /*------------------------------------------------------------*/ 1518 1519 union any_size 1520 { 1521 char const *c; 1522 short const *s; 1523 int const *i; 1524 unsigned int const *ui; 1525 }; 1526 1527 struct startend 1528 { 1529 unsigned int start; 1530 unsigned int end; 1531 }; 1532 1533 static ULong DEBUG_SnarfLinetab( 1534 DebugInfo* di, 1535 IMAGE_SECTION_HEADER* sectp, 1536 Char* linetab, 1537 Int size 1538 ) 1539 { 1540 //VG_(printf)("DEBUG_SnarfLinetab %p %p %p %d\n", di, sectp, linetab, size); 1541 Int file_segcount; 1542 Char filename[WIN32_PATH_MAX]; 1543 UInt * filetab; 1544 UChar * fn; 1545 Int i; 1546 Int k; 1547 UInt * lt_ptr; 1548 Int nfile; 1549 Int nseg; 1550 union any_size pnt; 1551 union any_size pnt2; 1552 struct startend * start; 1553 Int this_seg; 1554 1555 Bool debug = di->trace_symtab; 1556 Addr bias = BIAS_FOR_LINETAB; 1557 ULong n_lines_read = 0; 1558 1559 if (debug) 1560 VG_(message)(Vg_UserMsg, 1561 "BEGIN SnarfLineTab linetab=%p size=%d\n", 1562 linetab, size ); 1563 1564 /* 1565 * Now get the important bits. 1566 */ 1567 pnt.c = linetab; 1568 nfile = *pnt.s++; 1569 nseg = *pnt.s++; 1570 1571 filetab = (unsigned int *) pnt.c; 1572 1573 /* 1574 * Now count up the number of segments in the file. 1575 */ 1576 nseg = 0; 1577 for (i = 0; i < nfile; i++) { 1578 pnt2.c = linetab + filetab[i]; 1579 nseg += *pnt2.s; 1580 } 1581 1582 this_seg = 0; 1583 for (i = 0; i < nfile; i++) { 1584 UChar *fnmstr; 1585 UChar *dirstr; 1586 1587 /* 1588 * Get the pointer into the segment information. 1589 */ 1590 pnt2.c = linetab + filetab[i]; 1591 file_segcount = *pnt2.s; 1592 1593 pnt2.ui++; 1594 lt_ptr = (unsigned int *) pnt2.c; 1595 start = (struct startend *) (lt_ptr + file_segcount); 1596 1597 /* 1598 * Now snarf the filename for all of the segments for this file. 1599 */ 1600 fn = (UChar*) (start + file_segcount); 1601 /* fn now points at a Pascal-style string, that is, the first 1602 byte is the length, and the remaining up to 255 (presumably) 1603 are the contents. */ 1604 vg_assert(WIN32_PATH_MAX >= 256); 1605 VG_(memset)(filename, 0, sizeof(filename)); 1606 VG_(memcpy)(filename, fn + 1, *fn); 1607 vg_assert(filename[ sizeof(filename)-1 ] == 0); 1608 filename[(Int)*fn] = 0; 1609 fnmstr = VG_(strrchr)(filename, '\\'); 1610 if (fnmstr == NULL) 1611 fnmstr = filename; 1612 else 1613 ++fnmstr; 1614 k = VG_(strlen)(fnmstr); 1615 dirstr = ML_(addStr)(di, filename, *fn - k); 1616 fnmstr = ML_(addStr)(di, fnmstr, k); 1617 1618 for (k = 0; k < file_segcount; k++, this_seg++) { 1619 Int linecount; 1620 Int segno; 1621 1622 pnt2.c = linetab + lt_ptr[k]; 1623 1624 segno = *pnt2.s++; 1625 linecount = *pnt2.s++; 1626 1627 if ( linecount > 0 ) { 1628 UInt j; 1629 1630 if (debug) 1631 VG_(message)(Vg_UserMsg, 1632 " Adding %d lines for file %s segment %d addr=%#x end=%#x\n", 1633 linecount, filename, segno, start[k].start, start[k].end ); 1634 1635 for ( j = 0; j < linecount; j++ ) { 1636 Addr startaddr = bias + sectp[segno-1].VirtualAddress 1637 + pnt2.ui[j]; 1638 Addr endaddr = bias + sectp[segno-1].VirtualAddress 1639 + ((j < (linecount - 1)) 1640 ? pnt2.ui[j+1] 1641 : start[k].end); 1642 if (debug) 1643 VG_(message)(Vg_UserMsg, 1644 " Adding line %d addr=%#lx end=%#lx\n", 1645 ((unsigned short *)(pnt2.ui + linecount))[j], 1646 startaddr, endaddr ); 1647 ML_(addLineInfo)( 1648 di, fnmstr, dirstr, startaddr, endaddr, 1649 ((unsigned short *)(pnt2.ui + linecount))[j], j ); 1650 n_lines_read++; 1651 } 1652 } 1653 } 1654 } 1655 1656 if (debug) 1657 VG_(message)(Vg_UserMsg, 1658 "END SnarfLineTab linetab=%p size=%d\n", 1659 linetab, size ); 1660 1661 return n_lines_read; 1662 } 1663 1664 1665 1666 /* there's a new line tab structure from MS Studio 2005 and after 1667 * it's made of: 1668 * DWORD 000000f4 1669 * DWORD lineblk_offset (counting bytes after this field) 1670 * an array of codeview_linetab2_file structures 1671 * an array (starting at <lineblk_offset>) of codeview_linetab2_block structures 1672 */ 1673 1674 struct codeview_linetab2_file 1675 { 1676 DWORD offset; /* offset in string table for filename */ 1677 WORD unk; /* always 0x0110... type of following 1678 information ??? */ 1679 BYTE md5[16]; /* MD5 signature of file (signature on 1680 file's content or name ???) */ 1681 WORD pad0; /* always 0 */ 1682 }; 1683 1684 struct codeview_linetab2_block 1685 { 1686 DWORD header; /* 0x000000f2 */ 1687 DWORD size_of_block; /* next block is at # bytes after this field */ 1688 DWORD start; /* start address of function with line numbers */ 1689 DWORD seg; /* segment of function with line numbers */ 1690 DWORD size; /* size of function with line numbers */ 1691 DWORD file_offset; /* offset for accessing corresponding 1692 codeview_linetab2_file */ 1693 DWORD nlines; /* number of lines in this block */ 1694 DWORD size_lines; /* number of bytes following for line 1695 number information */ 1696 struct { 1697 DWORD offset; /* offset (from <seg>:<start>) for line number */ 1698 DWORD lineno; /* the line number (OR:ed with 1699 0x80000000 why ???) */ 1700 } l[1]; /* actually array of <nlines> */ 1701 }; 1702 1703 static ULong codeview_dump_linetab2( 1704 DebugInfo* di, 1705 Char* linetab, 1706 DWORD size, 1707 Char* strimage, 1708 DWORD strsize, 1709 Char* pfx 1710 ) 1711 { 1712 DWORD offset; 1713 unsigned i; 1714 struct codeview_linetab2_block* lbh; 1715 struct codeview_linetab2_file* fd; 1716 1717 Bool debug = di->trace_symtab; 1718 Addr bias = BIAS_FOR_LINETAB2; 1719 ULong n_line2s_read = 0; 1720 1721 if (*(const DWORD*)linetab != 0x000000f4) 1722 return 0; 1723 offset = *((DWORD*)linetab + 1); 1724 lbh = (struct codeview_linetab2_block*)(linetab + 8 + offset); 1725 1726 while ((Char*)lbh < linetab + size) { 1727 1728 HChar *filename, *dirname; 1729 Addr svma_s, svma_e; 1730 if (lbh->header != 0x000000f2) { 1731 /* FIXME: should also check that whole lbh fits in linetab + size */ 1732 if (debug) 1733 VG_(printf)("%sblock end %x\n", pfx, lbh->header); 1734 break; 1735 } 1736 if (debug) 1737 VG_(printf)("%sblock from %04x:%08x-%08x (size %u) (%u lines)\n", 1738 pfx, lbh->seg, lbh->start, lbh->start + lbh->size - 1, 1739 lbh->size, lbh->nlines); 1740 fd = (struct codeview_linetab2_file*)(linetab + 8 + lbh->file_offset); 1741 if (debug) 1742 VG_(printf)( 1743 "%s md5=%02x%02x%02x%02x%02x%02x%02x%02x" 1744 "%02x%02x%02x%02x%02x%02x%02x%02x\n", 1745 pfx, fd->md5[ 0], fd->md5[ 1], fd->md5[ 2], fd->md5[ 3], 1746 fd->md5[ 4], fd->md5[ 5], fd->md5[ 6], fd->md5[ 7], 1747 fd->md5[ 8], fd->md5[ 9], fd->md5[10], fd->md5[11], 1748 fd->md5[12], fd->md5[13], fd->md5[14], fd->md5[15] ); 1749 /* FIXME: should check that string is within strimage + strsize */ 1750 if (strimage) { 1751 dirname = strimage + fd->offset; 1752 filename = VG_(strrchr)(dirname, '\\'); 1753 if (filename == NULL) { 1754 filename = ML_(addStr)(di, dirname, -1); 1755 dirname = NULL; 1756 } else { 1757 dirname = ML_(addStr)(di, dirname, VG_(strlen)(dirname) 1758 - VG_(strlen)(filename)); 1759 filename = ML_(addStr)(di, filename+1, -1); 1760 } 1761 } else { 1762 filename = ML_(addStr)(di, "???", -1); 1763 dirname = NULL; 1764 } 1765 1766 if (debug) 1767 VG_(printf)("%s file=%s\n", pfx, filename); 1768 1769 for (i = 0; i < lbh->nlines; i++) { 1770 if (debug) 1771 VG_(printf)("%s offset=%08x line=%d\n", 1772 pfx, lbh->l[i].offset, lbh->l[i].lineno ^ 0x80000000); 1773 } 1774 1775 if (lbh->nlines > 1) { 1776 for (i = 0; i < lbh->nlines-1; i++) { 1777 svma_s = lbh->start + lbh->l[i].offset; 1778 svma_e = lbh->start + lbh->l[i+1].offset-1; 1779 if (debug) 1780 VG_(printf)("%s line %d: %08lx to %08lx\n", 1781 pfx, lbh->l[i].lineno ^ 0x80000000, svma_s, svma_e); 1782 ML_(addLineInfo)( di, filename, dirname, 1783 bias + svma_s, 1784 bias + svma_e + 1, 1785 lbh->l[i].lineno ^ 0x80000000, 0 ); 1786 n_line2s_read++; 1787 } 1788 svma_s = lbh->start + lbh->l[ lbh->nlines-1].offset; 1789 svma_e = lbh->start + lbh->size - 1; 1790 if (debug) 1791 VG_(printf)("%s line %d: %08lx to %08lx\n", 1792 pfx, lbh->l[ lbh->nlines-1 ].lineno ^ 0x80000000, 1793 svma_s, svma_e); 1794 ML_(addLineInfo)( di, filename, dirname, 1795 bias + svma_s, 1796 bias + svma_e + 1, 1797 lbh->l[lbh->nlines-1].lineno ^ 0x80000000, 0 ); 1798 n_line2s_read++; 1799 } 1800 1801 lbh = (struct codeview_linetab2_block*) 1802 ((char*)lbh + 8 + lbh->size_of_block); 1803 } 1804 return n_line2s_read; 1805 } 1806 1807 1808 /*------------------------------------------------------------*/ 1809 /*--- ---*/ 1810 /*--- Main stuff: pdb_dump ---*/ 1811 /*--- ---*/ 1812 /*------------------------------------------------------------*/ 1813 1814 static Int cmp_FPO_DATA_for_canonicalisation ( void* f1V, void* f2V ) 1815 { 1816 /* Cause FPO data to be sorted first in ascending order of range 1817 starts, and for entries with the same range start, with the 1818 shorter range (length) first. */ 1819 FPO_DATA* f1 = (FPO_DATA*)f1V; 1820 FPO_DATA* f2 = (FPO_DATA*)f2V; 1821 if (f1->ulOffStart < f2->ulOffStart) return -1; 1822 if (f1->ulOffStart > f2->ulOffStart) return 1; 1823 if (f1->cbProcSize < f2->cbProcSize) return -1; 1824 if (f1->cbProcSize > f2->cbProcSize) return 1; 1825 return 0; /* identical in both start and length */ 1826 } 1827 1828 1829 /* JRS fixme: compare with version in current Wine sources */ 1830 static void pdb_dump( struct pdb_reader* pdb, 1831 DebugInfo* di, 1832 Addr pe_avma, 1833 Int unknown_purpose__reloc, 1834 IMAGE_SECTION_HEADER* sectp_avma ) 1835 { 1836 Int header_size; 1837 1838 PDB_TYPES types; 1839 PDB_SYMBOLS symbols; 1840 unsigned len_modimage; 1841 char *modimage; 1842 char *file; 1843 1844 Bool debug = di->trace_symtab; 1845 Addr bias_for_fpo = BIAS_FOR_FPO; 1846 1847 ULong n_fpos_read = 0, n_syms_read = 0, 1848 n_lines_read = 0, n_line2s_read = 0; 1849 1850 // FIXME: symbols for bare indices 1,2,3,5 in .pdb file 1851 1852 char* types_image = pdb->read_file( pdb, 2, 0 ); 1853 char* symbols_image = pdb->read_file( pdb, 3, 0 ); 1854 1855 /* establish filesimage and filessize. These are only needed for 1856 reading linetab2 tables, as far as I can deduce from the Wine 1857 sources. */ 1858 char* filesimage = pdb->read_file( pdb, 12, 0); /* FIXME: really fixed ??? */ 1859 UInt filessize = 0; 1860 if (filesimage) { 1861 if (*(const DWORD*)filesimage == 0xeffeeffe) { 1862 filessize = *(const DWORD*)(filesimage + 8); 1863 } else { 1864 if (0) 1865 VG_(printf)("wrong header %x expecting 0xeffeeffe\n", 1866 *(const DWORD*)filesimage); 1867 ML_(dinfo_free)( (void*)filesimage); 1868 filesimage = NULL; 1869 } 1870 } 1871 1872 if (VG_(clo_verbosity) > 1) { 1873 VG_(message)(Vg_DebugMsg, 1874 "PDB_READER:\n"); 1875 VG_(message)(Vg_DebugMsg, 1876 " BIAS_FOR_SYMBOLS = %#08lx %s\n", 1877 (PtrdiffT)BIAS_FOR_SYMBOLS, VG_STRINGIFY(BIAS_FOR_SYMBOLS)); 1878 VG_(message)(Vg_DebugMsg, 1879 " BIAS_FOR_LINETAB = %#08lx %s\n", 1880 (PtrdiffT)BIAS_FOR_LINETAB, VG_STRINGIFY(BIAS_FOR_LINETAB)); 1881 VG_(message)(Vg_DebugMsg, 1882 " BIAS_FOR_LINETAB2 = %#08lx %s\n", 1883 (PtrdiffT)BIAS_FOR_LINETAB2, VG_STRINGIFY(BIAS_FOR_LINETAB2)); 1884 VG_(message)(Vg_DebugMsg, 1885 " BIAS_FOR_FPO = %#08lx %s\n", 1886 (PtrdiffT)BIAS_FOR_FPO, VG_STRINGIFY(BIAS_FOR_FPO)); 1887 VG_(message)(Vg_DebugMsg, 1888 " RELOC = %#08lx\n", 1889 (PtrdiffT)unknown_purpose__reloc); 1890 } 1891 1892 /* Since we just use the FPO data without reformatting, at least 1893 do a basic sanity check on the struct layout. */ 1894 vg_assert(sizeof(FPO_DATA) == 16); 1895 if (di->text_present) { 1896 /* only load FPO if there's text present (otherwise it's 1897 meaningless?) */ 1898 unsigned sz = 0; 1899 di->fpo = pdb->read_file( pdb, 5, &sz ); 1900 1901 // FIXME: seems like the size can be a non-integral number 1902 // of FPO_DATAs. Force-align it (moronically). Perhaps this 1903 // signifies that we're not looking at a valid FPO table .. 1904 // who knows. Needs investigation. 1905 while (sz > 0 && (sz % sizeof(FPO_DATA)) != 0) 1906 sz--; 1907 1908 di->fpo_size = sz; 1909 if (0) VG_(printf)("FPO: got fpo_size %lu\n", (UWord)sz); 1910 vg_assert(0 == (di->fpo_size % sizeof(FPO_DATA))); 1911 } else { 1912 vg_assert(di->fpo == NULL); 1913 vg_assert(di->fpo_size == 0); 1914 } 1915 1916 // BEGIN clean up FPO data 1917 if (di->fpo && di->fpo_size > 0) { 1918 Word i, j; 1919 Bool anyChanges; 1920 Int itersAvail = 10; 1921 1922 vg_assert(sizeof(di->fpo[0]) == 16); 1923 di->fpo_size /= sizeof(di->fpo[0]); 1924 1925 // BEGIN FPO-data tidying-up loop 1926 do { 1927 1928 vg_assert(itersAvail >= 0); /* safety check -- don't loop forever */ 1929 itersAvail--; 1930 1931 anyChanges = False; 1932 1933 /* First get them in ascending order of start point */ 1934 VG_(ssort)( di->fpo, (SizeT)di->fpo_size, (SizeT)sizeof(FPO_DATA), 1935 cmp_FPO_DATA_for_canonicalisation ); 1936 /* Get rid of any zero length entries */ 1937 j = 0; 1938 for (i = 0; i < di->fpo_size; i++) { 1939 if (di->fpo[i].cbProcSize == 0) { 1940 anyChanges = True; 1941 continue; 1942 } 1943 di->fpo[j++] = di->fpo[i]; 1944 } 1945 vg_assert(j >= 0 && j <= di->fpo_size); 1946 di->fpo_size = j; 1947 1948 /* Get rid of any dups */ 1949 if (di->fpo_size > 1) { 1950 j = 1; 1951 for (i = 1; i < di->fpo_size; i++) { 1952 Bool dup 1953 = di->fpo[j-1].ulOffStart == di->fpo[i].ulOffStart 1954 && di->fpo[j-1].cbProcSize == di->fpo[i].cbProcSize; 1955 if (dup) { 1956 anyChanges = True; 1957 continue; 1958 } 1959 di->fpo[j++] = di->fpo[i]; 1960 } 1961 vg_assert(j >= 0 && j <= di->fpo_size); 1962 di->fpo_size = j; 1963 } 1964 1965 /* Truncate any overlapping ranges */ 1966 for (i = 1; i < di->fpo_size; i++) { 1967 vg_assert(di->fpo[i-1].ulOffStart <= di->fpo[i].ulOffStart); 1968 if (di->fpo[i-1].ulOffStart + di->fpo[i-1].cbProcSize 1969 > di->fpo[i].ulOffStart) { 1970 anyChanges = True; 1971 di->fpo[i-1].cbProcSize 1972 = di->fpo[i].ulOffStart - di->fpo[i-1].ulOffStart; 1973 } 1974 } 1975 1976 } while (anyChanges); 1977 // END FPO-data tidying-up loop 1978 1979 /* Should now be in ascending order, non overlapping, no zero ranges. 1980 Check this, get the min and max avmas, and bias the entries. */ 1981 for (i = 0; i < di->fpo_size; i++) { 1982 vg_assert(di->fpo[i].cbProcSize > 0); 1983 1984 if (i > 0) { 1985 vg_assert(di->fpo[i-1].ulOffStart < di->fpo[i].ulOffStart); 1986 vg_assert(di->fpo[i-1].ulOffStart + di->fpo[i-1].cbProcSize 1987 <= di->fpo[i].ulOffStart); 1988 } 1989 } 1990 1991 /* Now bias the table. This can't be done in the same pass as 1992 the sanity check, hence a second loop. */ 1993 for (i = 0; i < di->fpo_size; i++) { 1994 di->fpo[i].ulOffStart += bias_for_fpo; 1995 // make sure the biasing didn't royally screw up, by wrapping 1996 // the range around the end of the address space 1997 vg_assert(0xFFFFFFFF - di->fpo[i].ulOffStart /* "remaining space" */ 1998 >= di->fpo[i].cbProcSize); 1999 } 2000 2001 /* Dump any entries which point outside the text segment and 2002 compute the min/max avma "hint" addresses. */ 2003 Addr min_avma = ~(Addr)0; 2004 Addr max_avma = (Addr)0; 2005 vg_assert(di->text_present); 2006 j = 0; 2007 for (i = 0; i < di->fpo_size; i++) { 2008 if ((Addr)(di->fpo[i].ulOffStart) >= di->text_avma 2009 && (Addr)(di->fpo[i].ulOffStart + di->fpo[i].cbProcSize) 2010 <= di->text_avma + di->text_size) { 2011 /* Update min/max limits as we go along. */ 2012 if (di->fpo[i].ulOffStart < min_avma) 2013 min_avma = di->fpo[i].ulOffStart; 2014 if (di->fpo[i].ulOffStart + di->fpo[i].cbProcSize - 1 > max_avma) 2015 max_avma = di->fpo[i].ulOffStart + di->fpo[i].cbProcSize - 1; 2016 /* Keep */ 2017 di->fpo[j++] = di->fpo[i]; 2018 if (0) 2019 VG_(printf)("FPO: keep text=[0x%lx,0x%lx) 0x%lx 0x%lx\n", 2020 di->text_avma, di->text_avma + di->text_size, 2021 (Addr)di->fpo[i].ulOffStart, 2022 (Addr)di->fpo[i].ulOffStart 2023 + (Addr)di->fpo[i].cbProcSize - 1); 2024 } else { 2025 if (0) 2026 VG_(printf)("FPO: SKIP text=[0x%lx,0x%lx) 0x%lx 0x%lx\n", 2027 di->text_avma, di->text_avma + di->text_size, 2028 (Addr)di->fpo[i].ulOffStart, 2029 (Addr)di->fpo[i].ulOffStart 2030 + (Addr)di->fpo[i].cbProcSize - 1); 2031 /* out of range; ignore */ 2032 } 2033 } 2034 vg_assert(j >= 0 && j <= di->fpo_size); 2035 di->fpo_size = j; 2036 2037 /* And record min/max */ 2038 /* biasing shouldn't cause wraparound (?!) */ 2039 if (di->fpo_size > 0) { 2040 vg_assert(min_avma <= max_avma); /* should always hold */ 2041 di->fpo_minavma = min_avma; 2042 di->fpo_maxavma = max_avma; 2043 } else { 2044 di->fpo_minavma = 0; 2045 di->fpo_maxavma = 0; 2046 } 2047 2048 if (0) { 2049 VG_(printf)("FPO: min/max avma %#lx %#lx\n", 2050 di->fpo_minavma, di->fpo_maxavma); 2051 } 2052 2053 n_fpos_read += (ULong)di->fpo_size; 2054 } 2055 // END clean up FPO data 2056 2057 pdb_convert_types_header( &types, types_image ); 2058 switch ( types.version ) { 2059 case 19950410: /* VC 4.0 */ 2060 case 19951122: 2061 case 19961031: /* VC 5.0 / 6.0 */ 2062 case 20040203: /* VC 7.0 FIXME?? */ 2063 break; 2064 default: 2065 if (VG_(clo_verbosity) > 1) 2066 VG_(message)(Vg_UserMsg, 2067 "Unknown .pdb type info version %ld\n", 2068 types.version ); 2069 } 2070 2071 header_size = 0; 2072 pdb_convert_symbols_header( &symbols, &header_size, symbols_image ); 2073 switch ( symbols.version ) { 2074 case 0: /* VC 4.0 */ 2075 case 19960307: /* VC 5.0 */ 2076 case 19970606: /* VC 6.0 */ 2077 case 19990903: /* VC 7.0 FIXME?? */ 2078 break; 2079 default: 2080 if (VG_(clo_verbosity) > 1) 2081 VG_(message)(Vg_UserMsg, 2082 "Unknown .pdb symbol info version %ld\n", 2083 symbols.version ); 2084 } 2085 2086 /* 2087 * Read global symbol table 2088 */ 2089 modimage = pdb->read_file( pdb, symbols.gsym_file, &len_modimage ); 2090 if (modimage) { 2091 if (debug) 2092 VG_(umsg)("\n"); 2093 if (VG_(clo_verbosity) > 1) 2094 VG_(message)(Vg_UserMsg, "Reading global symbols\n" ); 2095 DEBUG_SnarfCodeView( di, sectp_avma, modimage, 0, len_modimage ); 2096 ML_(dinfo_free)( (void*)modimage ); 2097 } 2098 2099 /* 2100 * Read per-module symbol / linenumber tables 2101 */ 2102 file = symbols_image + header_size; 2103 while ( file - symbols_image < header_size + symbols.module_size ) { 2104 int file_nr, file_index, symbol_size, lineno_size; 2105 char *file_name; 2106 2107 if ( symbols.version < 19970000 ) { 2108 PDB_SYMBOL_FILE *sym_file = (PDB_SYMBOL_FILE *) file; 2109 file_nr = sym_file->file; 2110 file_name = sym_file->filename; 2111 file_index = sym_file->range.index; 2112 symbol_size = sym_file->symbol_size; 2113 lineno_size = sym_file->lineno_size; 2114 } else { 2115 PDB_SYMBOL_FILE_EX *sym_file = (PDB_SYMBOL_FILE_EX *) file; 2116 file_nr = sym_file->file; 2117 file_name = sym_file->filename; 2118 file_index = sym_file->range.index; 2119 symbol_size = sym_file->symbol_size; 2120 lineno_size = sym_file->lineno_size; 2121 } 2122 2123 modimage = pdb->read_file( pdb, file_nr, 0 ); 2124 if (modimage) { 2125 Int total_size; 2126 if (0) VG_(printf)("lineno_size %d symbol_size %d\n", 2127 lineno_size, symbol_size ); 2128 2129 total_size = pdb_get_file_size(pdb, file_nr); 2130 2131 if (symbol_size) { 2132 if (debug) 2133 VG_(umsg)("\n"); 2134 if (VG_(clo_verbosity) > 1) 2135 VG_(message)(Vg_UserMsg, "Reading symbols for %s\n", 2136 file_name ); 2137 n_syms_read 2138 += DEBUG_SnarfCodeView( di, sectp_avma, modimage, 2139 sizeof(unsigned long), 2140 symbol_size ); 2141 } 2142 2143 if (lineno_size) { 2144 if (debug) 2145 VG_(umsg)("\n"); 2146 if (VG_(clo_verbosity) > 1) 2147 VG_(message)(Vg_UserMsg, "Reading lines for %s\n", file_name ); 2148 n_lines_read 2149 += DEBUG_SnarfLinetab( di, sectp_avma, 2150 modimage + symbol_size, lineno_size ); 2151 } 2152 2153 /* anyway, lineno_size doesn't see to really be the size of 2154 * the line number information, and it's not clear yet when 2155 * to call for linetab2... 2156 */ 2157 n_line2s_read 2158 += codeview_dump_linetab2( 2159 di, (char*)modimage + symbol_size + lineno_size, 2160 total_size - (symbol_size + lineno_size), 2161 /* if filesimage is NULL, pass that directly onwards 2162 to codeview_dump_linetab2, so it knows not to 2163 poke around in there. */ 2164 filesimage ? filesimage + 12 : NULL, 2165 filessize, " " 2166 ); 2167 2168 ML_(dinfo_free)( (void*)modimage ); 2169 } 2170 2171 file_name += VG_(strlen)(file_name) + 1; 2172 file = (char *)( 2173 (unsigned long)(file_name 2174 + VG_(strlen)(file_name) + 1 + 3) & ~3 ); 2175 } 2176 2177 /* 2178 * Cleanup 2179 */ 2180 if ( symbols_image ) ML_(dinfo_free)( symbols_image ); 2181 if ( types_image ) ML_(dinfo_free)( types_image ); 2182 if ( pdb->u.jg.toc ) ML_(dinfo_free)( pdb->u.jg.toc ); 2183 2184 if (VG_(clo_verbosity) > 1) { 2185 VG_(message)(Vg_DebugMsg, 2186 " # symbols read = %llu\n", n_syms_read ); 2187 VG_(message)(Vg_DebugMsg, 2188 " # lines read = %llu\n", n_lines_read ); 2189 VG_(message)(Vg_DebugMsg, 2190 " # line2s read = %llu\n", n_line2s_read ); 2191 VG_(message)(Vg_DebugMsg, 2192 " # fpos read = %llu\n", n_fpos_read ); 2193 } 2194 } 2195 2196 2197 /*------------------------------------------------------------*/ 2198 /*--- ---*/ 2199 /*--- TOP LEVEL for PDB reading ---*/ 2200 /*--- ---*/ 2201 /*------------------------------------------------------------*/ 2202 2203 /* Read line, symbol and unwind information from a PDB file. 2204 */ 2205 Bool ML_(read_pdb_debug_info)( 2206 DebugInfo* di, 2207 Addr obj_avma, 2208 PtrdiffT unknown_purpose__reloc, 2209 void* pdbimage, 2210 SizeT n_pdbimage, 2211 Char* pdbname, 2212 ULong pdbmtime 2213 ) 2214 { 2215 Char* pe_seg_avma; 2216 Int i; 2217 Addr mapped_avma, mapped_end_avma; 2218 unsigned signature; 2219 void* hdr; 2220 struct pdb_reader reader; 2221 IMAGE_DOS_HEADER* dos_avma; 2222 IMAGE_NT_HEADERS* ntheaders_avma; 2223 IMAGE_SECTION_HEADER* sectp_avma; 2224 IMAGE_SECTION_HEADER* pe_sechdr_avma; 2225 2226 if (VG_(clo_verbosity) > 1) 2227 VG_(message)(Vg_UserMsg, "Processing PDB file %s\n", pdbname ); 2228 2229 dos_avma = (IMAGE_DOS_HEADER *)obj_avma; 2230 if (dos_avma->e_magic != IMAGE_DOS_SIGNATURE) 2231 return False; 2232 2233 ntheaders_avma 2234 = (IMAGE_NT_HEADERS *)((Char*)dos_avma + dos_avma->e_lfanew); 2235 if (ntheaders_avma->Signature != IMAGE_NT_SIGNATURE) 2236 return False; 2237 2238 sectp_avma 2239 = (IMAGE_SECTION_HEADER *)( 2240 (Char*)ntheaders_avma 2241 + OFFSET_OF(IMAGE_NT_HEADERS, OptionalHeader) 2242 + ntheaders_avma->FileHeader.SizeOfOptionalHeader 2243 ); 2244 2245 /* JRS: this seems like something of a hack. */ 2246 // di->soname = ML_(dinfo_strdup)("di.readpdb.rpdi.1", pdbname); 2247 di->soname = "NONE"; 2248 2249 /* someone (ie WINE) is loading a Windows PE format object. we 2250 need to use its details to determine which area of memory is 2251 executable... */ 2252 pe_seg_avma 2253 = (Char*)ntheaders_avma 2254 + OFFSET_OF(IMAGE_NT_HEADERS, OptionalHeader) 2255 + ntheaders_avma->FileHeader.SizeOfOptionalHeader; 2256 2257 di->rx_map_avma = (Addr)obj_avma; 2258 2259 /* Iterate over PE(?) headers. Try to establish the text_bias, 2260 that's all we really care about. */ 2261 for ( i = 0; 2262 i < ntheaders_avma->FileHeader.NumberOfSections; 2263 i++, pe_seg_avma += sizeof(IMAGE_SECTION_HEADER) ) { 2264 pe_sechdr_avma = (IMAGE_SECTION_HEADER *)pe_seg_avma; 2265 2266 if (VG_(clo_verbosity) > 1) 2267 VG_(message)(Vg_UserMsg, 2268 " Scanning PE section %s at avma %p svma %#lx\n", 2269 pe_sechdr_avma->Name, pe_seg_avma, 2270 pe_sechdr_avma->VirtualAddress); 2271 2272 if (pe_sechdr_avma->Characteristics & IMAGE_SCN_MEM_DISCARDABLE) 2273 continue; 2274 2275 mapped_avma = (Addr)obj_avma + pe_sechdr_avma->VirtualAddress; 2276 mapped_end_avma = mapped_avma + pe_sechdr_avma->Misc.VirtualSize; 2277 if (VG_(clo_verbosity) > 1) 2278 VG_(message)(Vg_DebugMsg, 2279 " ::: mapped_avma is %#lx\n", mapped_avma); 2280 2281 if (pe_sechdr_avma->Characteristics & IMAGE_SCN_CNT_CODE) { 2282 /* Ignore uninitialised code sections - if you have 2283 incremental linking enabled in Visual Studio then you will 2284 get a uninitialised code section called .textbss before 2285 the real text section and valgrind will compute the wrong 2286 avma value and hence the wrong bias. */ 2287 if (!(pe_sechdr_avma->Characteristics & IMAGE_SCN_CNT_UNINITIALIZED_DATA)) { 2288 di->have_rx_map = True; 2289 if (di->rx_map_avma == 0) { 2290 di->rx_map_avma = mapped_avma; 2291 } 2292 if (di->rx_map_size==0) { 2293 di->rx_map_foff = pe_sechdr_avma->PointerToRawData; 2294 } 2295 di->text_present = True; 2296 if (di->text_avma==0) { 2297 di->text_avma = mapped_avma; 2298 } 2299 di->text_size += pe_sechdr_avma->Misc.VirtualSize; 2300 di->rx_map_size += pe_sechdr_avma->Misc.VirtualSize; 2301 } 2302 } 2303 else if (pe_sechdr_avma->Characteristics 2304 & IMAGE_SCN_CNT_INITIALIZED_DATA) { 2305 di->have_rw_map = True; 2306 if (di->rw_map_avma == 0) { 2307 di->rw_map_avma = mapped_avma; 2308 } 2309 if (di->rw_map_size==0) { 2310 di->rw_map_foff = pe_sechdr_avma->PointerToRawData; 2311 } 2312 di->data_present = True; 2313 if (di->data_avma==0) { 2314 di->data_avma = mapped_avma; 2315 } 2316 di->rw_map_size += pe_sechdr_avma->Misc.VirtualSize; 2317 di->data_size += pe_sechdr_avma->Misc.VirtualSize; 2318 } 2319 else if (pe_sechdr_avma->Characteristics 2320 & IMAGE_SCN_CNT_UNINITIALIZED_DATA) { 2321 di->bss_present = True; 2322 di->bss_avma = mapped_avma; 2323 di->bss_size = pe_sechdr_avma->Misc.VirtualSize; 2324 } 2325 2326 mapped_avma = VG_PGROUNDDN(mapped_avma); 2327 mapped_end_avma = VG_PGROUNDUP(mapped_end_avma); 2328 2329 /* Urr. These tests are bogus; ->rx_map_avma is not necessarily 2330 the start of the text section. */ 2331 if ((1 /*VG_(needs).data_syms*/ 2332 || (pe_sechdr_avma->Characteristics & IMAGE_SCN_CNT_CODE)) 2333 && mapped_avma >= di->rx_map_avma 2334 && mapped_avma <= (di->rx_map_avma+di->text_size) 2335 && mapped_end_avma > (di->rx_map_avma+di->text_size)) { 2336 UInt newsz = mapped_end_avma - di->rx_map_avma; 2337 if (newsz > di->text_size) { 2338 /* extending the mapping is always needed for PE files 2339 under WINE */ 2340 di->text_size = newsz; 2341 di->rx_map_size = newsz; 2342 } 2343 } 2344 } 2345 2346 if (di->have_rx_map && di->have_rw_map && !di->have_dinfo) { 2347 vg_assert(di->filename); 2348 TRACE_SYMTAB("\n"); 2349 TRACE_SYMTAB("------ start PE OBJECT with PDB INFO " 2350 "---------------------\n"); 2351 TRACE_SYMTAB("------ name = %s\n", di->filename); 2352 TRACE_SYMTAB("\n"); 2353 } 2354 2355 if (di->text_present) { 2356 di->text_bias = di->text_avma - di->text_svma; 2357 } else { 2358 di->text_bias = 0; 2359 } 2360 2361 if (VG_(clo_verbosity) > 1) { 2362 VG_(message)(Vg_DebugMsg, 2363 "rx_map: avma %#lx size %7lu foff %llu\n", 2364 di->rx_map_avma, di->rx_map_size, (Off64T)di->rx_map_foff); 2365 VG_(message)(Vg_DebugMsg, 2366 "rw_map: avma %#lx size %7lu foff %llu\n", 2367 di->rw_map_avma, di->rw_map_size, (Off64T)di->rw_map_foff); 2368 2369 VG_(message)(Vg_DebugMsg, 2370 " text: avma %#lx svma %#lx size %7lu bias %#lx\n", 2371 di->text_avma, di->text_svma, di->text_size, di->text_bias); 2372 } 2373 2374 /* 2375 * Read in TOC and well-known files 2376 */ 2377 signature = 0; 2378 hdr = find_pdb_header( pdbimage, &signature ); 2379 if (0==hdr) 2380 return False; /* JRS: significance? no pdb header? */ 2381 2382 VG_(memset)(&reader, 0, sizeof(reader)); 2383 reader.u.jg.header = hdr; 2384 2385 if (0==VG_(strncmp)((char const *)&signature, "DS\0\0", 4)) { 2386 struct PDB_DS_ROOT* root; 2387 pdb_ds_init( &reader, pdbimage, n_pdbimage ); 2388 root = reader.read_file( &reader, 1, 0 ); 2389 if (root) { 2390 pdb_check_root_version_and_timestamp( 2391 pdbname, pdbmtime, root->version, root->TimeDateStamp ); 2392 ML_(dinfo_free)( root ); 2393 } 2394 pdb_dump( &reader, di, obj_avma, unknown_purpose__reloc, sectp_avma ); 2395 } 2396 else 2397 if (0==VG_(strncmp)((char const *)&signature, "JG\0\0", 4)) { 2398 struct PDB_JG_ROOT* root; 2399 pdb_jg_init( &reader, pdbimage, n_pdbimage ); 2400 root = reader.read_file( &reader, 1, 0 ); 2401 if (root) { 2402 pdb_check_root_version_and_timestamp( 2403 pdbname, pdbmtime, root->version, root->TimeDateStamp); 2404 ML_(dinfo_free)( root ); 2405 } 2406 pdb_dump( &reader, di, obj_avma, unknown_purpose__reloc, sectp_avma ); 2407 } 2408 2409 if (1) { 2410 TRACE_SYMTAB("\n------ Canonicalising the " 2411 "acquired info ------\n"); 2412 /* prepare read data for use */ 2413 ML_(canonicaliseTables)( di ); 2414 /* notify m_redir about it */ 2415 TRACE_SYMTAB("\n------ Notifying m_redir ------\n"); 2416 VG_(redir_notify_new_DebugInfo)( di ); 2417 /* Note that we succeeded */ 2418 di->have_dinfo = True; 2419 } else { 2420 TRACE_SYMTAB("\n------ PE with PDB reading failed ------\n"); 2421 /* Something went wrong (eg. bad ELF file). Should we delete 2422 this DebugInfo? No - it contains info on the rw/rx 2423 mappings, at least. */ 2424 } 2425 2426 TRACE_SYMTAB("\n"); 2427 TRACE_SYMTAB("------ name = %s\n", di->filename); 2428 TRACE_SYMTAB("------ end PE OBJECT with PDB INFO " 2429 "--------------------\n"); 2430 TRACE_SYMTAB("\n"); 2431 2432 return True; 2433 } 2434 2435 2436 /* Examine a PE file to see if it states the path of an associated PDB 2437 file; if so return that. Caller must deallocate with 2438 ML_(dinfo_free). 2439 */ 2440 2441 HChar* ML_(find_name_of_pdb_file)( HChar* pename ) 2442 { 2443 /* This is a giant kludge, of the kind "you did WTF?!?", but it 2444 works. */ 2445 Bool do_cleanup = False; 2446 HChar tmpname[100], tmpnameroot[50]; 2447 Int fd, r; 2448 HChar* res = NULL; 2449 2450 if (!pename) 2451 goto out; 2452 2453 fd = -1; 2454 VG_(memset)(tmpnameroot, 0, sizeof(tmpnameroot)); 2455 VG_(sprintf)(tmpnameroot, "petmp%d", VG_(getpid)()); 2456 VG_(memset)(tmpname, 0, sizeof(tmpname)); 2457 fd = VG_(mkstemp)( tmpnameroot, tmpname ); 2458 if (fd == -1) { 2459 VG_(message)(Vg_UserMsg, 2460 "Find PDB file: Can't create /tmp file %s\n", tmpname); 2461 goto out; 2462 } 2463 do_cleanup = True; 2464 2465 /* Make up the command to run, essentially: 2466 sh -c "strings (pename) | egrep '\.pdb|\.PDB' > (tmpname)" 2467 */ 2468 HChar* sh = SH_PATH; 2469 HChar* strings = STRINGS_PATH; 2470 HChar* egrep = EGREP_PATH; 2471 2472 /* (sh) -c "(strings) (pename) | (egrep) 'pdb' > (tmpname) */ 2473 Int cmdlen = VG_(strlen)(strings) + VG_(strlen)(pename) 2474 + VG_(strlen)(egrep) + VG_(strlen)(tmpname) 2475 + 100/*misc*/; 2476 HChar* cmd = ML_(dinfo_zalloc)("di.readpe.fnopf.cmd", cmdlen); 2477 vg_assert(cmd); 2478 VG_(sprintf)(cmd, "%s -c \"%s %s | %s '\\.pdb|\\.PDB' >> %s\"", 2479 sh, strings, pename, egrep, tmpname); 2480 vg_assert(cmd[cmdlen-1] == 0); 2481 if (0) VG_(printf)("QQQQQQQQ: %s\n", cmd); 2482 2483 r = VG_(system)( cmd ); 2484 if (r) { 2485 VG_(message)(Vg_DebugMsg, 2486 "Find PDB file: Command failed:\n %s\n", cmd); 2487 goto out; 2488 } 2489 2490 /* Find out how big the file is, and get it aboard. */ 2491 struct vg_stat stat_buf; 2492 VG_(memset)(&stat_buf, 0, sizeof(stat_buf)); 2493 2494 SysRes sr = VG_(stat)(tmpname, &stat_buf); 2495 if (sr_isError(sr)) { 2496 VG_(umsg)("Find PDB file: can't stat %s\n", tmpname); 2497 goto out; 2498 } 2499 2500 Int szB = (Int)stat_buf.size; 2501 if (szB == 0) { 2502 VG_(umsg)("Find PDB file: %s is empty\n", tmpname); 2503 goto out; 2504 } 2505 /* 6 == strlen("X.pdb\n") */ 2506 if (szB < 6 || szB > 1024/*let's say*/) { 2507 VG_(umsg)("Find PDB file: %s has implausible size %d\n", 2508 tmpname, szB); 2509 goto out; 2510 } 2511 2512 HChar* pdbname = ML_(dinfo_zalloc)("di.readpe.fnopf.pdbname", szB + 1); 2513 vg_assert(pdbname); 2514 pdbname[szB] = 0; 2515 2516 Int nread = VG_(read)(fd, pdbname, szB); 2517 if (nread != szB) { 2518 VG_(umsg)("Find PDB file: read of %s failed\n", tmpname); 2519 goto out; 2520 } 2521 vg_assert(pdbname[szB] == 0); 2522 2523 /* Check we've got something remotely sane -- must have one dot and 2524 one \n in it, and the \n must be at the end */ 2525 Bool saw_dot = False; 2526 Int saw_n_crs = 0; 2527 Int i; 2528 for (i = 0; pdbname[i]; i++) { 2529 if (pdbname[i] == '.') saw_dot = True; 2530 if (pdbname[i] == '\n') saw_n_crs++; 2531 } 2532 if (!saw_dot || saw_n_crs != 1 || pdbname[szB-1] != '\n') { 2533 VG_(umsg)("Find PDB file: can't make sense of: %s\n", pdbname); 2534 goto out; 2535 } 2536 /* Change the \n to a terminating zero, so we have a "normal" string */ 2537 pdbname[szB-1] = 0; 2538 2539 if (0) VG_(printf)("QQQQQQQQ: got %s\n", pdbname); 2540 2541 res = pdbname; 2542 goto out; 2543 2544 out: 2545 if (do_cleanup) { 2546 VG_(close)(fd); 2547 VG_(unlink)( tmpname ); 2548 } 2549 return res; 2550 } 2551 2552 #endif // defined(VGO_linux) || defined(VGO_darwin) 2553 2554 /*--------------------------------------------------------------------*/ 2555 /*--- end ---*/ 2556 /*--------------------------------------------------------------------*/ 2557
