source: opengl-game/StackWalker.cpp@ 785333b

feature/imgui-sdl points-test
Last change on this file since 785333b was d9b6a1c, checked in by Dmitry Portnoy <dmitry.portnoy@…>, 6 years ago

Print a stack trace in the event of a crash. Currently, the code for this on Windows outputs the stack trace to stderr, not to a log file.
  • Property mode set to 100644
File size: 51.9 KB
Line 
1/**********************************************************************
2 *
3 * StackWalker.cpp
4 * https://github.com/JochenKalmbach/StackWalker
5 *
6 * Old location: http://stackwalker.codeplex.com/
7 *
8 *
9 * History:
10 * 2005-07-27 v1 - First public release on http://www.codeproject.com/
11 * http://www.codeproject.com/threads/StackWalker.asp
12 * 2005-07-28 v2 - Changed the params of the constructor and ShowCallstack
13 * (to simplify the usage)
14 * 2005-08-01 v3 - Changed to use 'CONTEXT_FULL' instead of CONTEXT_ALL
15 * (should also be enough)
16 * - Changed to compile correctly with the PSDK of VC7.0
17 * (GetFileVersionInfoSizeA and GetFileVersionInfoA is wrongly defined:
18 * it uses LPSTR instead of LPCSTR as first parameter)
19 * - Added declarations to support VC5/6 without using 'dbghelp.h'
20 * - Added a 'pUserData' member to the ShowCallstack function and the
21 * PReadProcessMemoryRoutine declaration (to pass some user-defined data,
22 * which can be used in the readMemoryFunction-callback)
23 * 2005-08-02 v4 - OnSymInit now also outputs the OS-Version by default
24 * - Added example for doing an exception-callstack-walking in main.cpp
25 * (thanks to owillebo: http://www.codeproject.com/script/profile/whos_who.asp?id=536268)
26 * 2005-08-05 v5 - Removed most Lint (http://www.gimpel.com/) errors... thanks to Okko Willeboordse!
27 * 2008-08-04 v6 - Fixed Bug: Missing LEAK-end-tag
28 * http://www.codeproject.com/KB/applications/leakfinder.aspx?msg=2502890#xx2502890xx
29 * Fixed Bug: Compiled with "WIN32_LEAN_AND_MEAN"
30 * http://www.codeproject.com/KB/applications/leakfinder.aspx?msg=1824718#xx1824718xx
31 * Fixed Bug: Compiling with "/Wall"
32 * http://www.codeproject.com/KB/threads/StackWalker.aspx?msg=2638243#xx2638243xx
33 * Fixed Bug: Now checking SymUseSymSrv
34 * http://www.codeproject.com/KB/threads/StackWalker.aspx?msg=1388979#xx1388979xx
35 * Fixed Bug: Support for recursive function calls
36 * http://www.codeproject.com/KB/threads/StackWalker.aspx?msg=1434538#xx1434538xx
37 * Fixed Bug: Missing FreeLibrary call in "GetModuleListTH32"
38 * http://www.codeproject.com/KB/threads/StackWalker.aspx?msg=1326923#xx1326923xx
39 * Fixed Bug: SymDia is number 7, not 9!
40 * 2008-09-11 v7 For some (undocumented) reason, dbhelp.h is needing a packing of 8!
41 * Thanks to Teajay which reported the bug...
42 * http://www.codeproject.com/KB/applications/leakfinder.aspx?msg=2718933#xx2718933xx
43 * 2008-11-27 v8 Debugging Tools for Windows are now stored in a different directory
44 * Thanks to Luiz Salamon which reported this "bug"...
45 * http://www.codeproject.com/KB/threads/StackWalker.aspx?msg=2822736#xx2822736xx
46 * 2009-04-10 v9 License slightly corrected (<ORGANIZATION> replaced)
47 * 2009-11-01 v10 Moved to http://stackwalker.codeplex.com/
48 * 2009-11-02 v11 Now try to use IMAGEHLP_MODULE64_V3 if available
49 * 2010-04-15 v12 Added support for VS2010 RTM
50 * 2010-05-25 v13 Now using secure MyStrcCpy. Thanks to luke.simon:
51 * http://www.codeproject.com/KB/applications/leakfinder.aspx?msg=3477467#xx3477467xx
52 * 2013-01-07 v14 Runtime Check Error VS2010 Debug Builds fixed:
53 * http://stackwalker.codeplex.com/workitem/10511
54 *
55 *
56 * LICENSE (http://www.opensource.org/licenses/bsd-license.php)
57 *
58 * Copyright (c) 2005-2013, Jochen Kalmbach
59 * All rights reserved.
60 *
61 * Redistribution and use in source and binary forms, with or without modification,
62 * are permitted provided that the following conditions are met:
63 *
64 * Redistributions of source code must retain the above copyright notice,
65 * this list of conditions and the following disclaimer.
66 * Redistributions in binary form must reproduce the above copyright notice,
67 * this list of conditions and the following disclaimer in the documentation
68 * and/or other materials provided with the distribution.
69 * Neither the name of Jochen Kalmbach nor the names of its contributors may be
70 * used to endorse or promote products derived from this software without
71 * specific prior written permission.
72 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
73 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
74 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
75 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
76 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
77 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
78 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
79 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
80 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
81 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
82 *
83 **********************************************************************/
84
85#include "StackWalker.h"
86
87#include <stdio.h>
88#include <stdlib.h>
89#include <tchar.h>
90#include <windows.h>
91#pragma comment(lib, "version.lib") // for "VerQueryValue"
92#pragma warning(disable : 4826)
93
94
95// If VC7 and later, then use the shipped 'dbghelp.h'-file
96#pragma pack(push, 8)
97#if _MSC_VER >= 1300
98#include <dbghelp.h>
99#else
100// inline the important dbghelp.h-declarations...
101typedef enum
102{
103 SymNone = 0,
104 SymCoff,
105 SymCv,
106 SymPdb,
107 SymExport,
108 SymDeferred,
109 SymSym,
110 SymDia,
111 SymVirtual,
112 NumSymTypes
113} SYM_TYPE;
114typedef struct _IMAGEHLP_LINE64
115{
116 DWORD SizeOfStruct; // set to sizeof(IMAGEHLP_LINE64)
117 PVOID Key; // internal
118 DWORD LineNumber; // line number in file
119 PCHAR FileName; // full filename
120 DWORD64 Address; // first instruction of line
121} IMAGEHLP_LINE64, *PIMAGEHLP_LINE64;
122typedef struct _IMAGEHLP_MODULE64
123{
124 DWORD SizeOfStruct; // set to sizeof(IMAGEHLP_MODULE64)
125 DWORD64 BaseOfImage; // base load address of module
126 DWORD ImageSize; // virtual size of the loaded module
127 DWORD TimeDateStamp; // date/time stamp from pe header
128 DWORD CheckSum; // checksum from the pe header
129 DWORD NumSyms; // number of symbols in the symbol table
130 SYM_TYPE SymType; // type of symbols loaded
131 CHAR ModuleName[32]; // module name
132 CHAR ImageName[256]; // image name
133 CHAR LoadedImageName[256]; // symbol file name
134} IMAGEHLP_MODULE64, *PIMAGEHLP_MODULE64;
135typedef struct _IMAGEHLP_SYMBOL64
136{
137 DWORD SizeOfStruct; // set to sizeof(IMAGEHLP_SYMBOL64)
138 DWORD64 Address; // virtual address including dll base address
139 DWORD Size; // estimated size of symbol, can be zero
140 DWORD Flags; // info about the symbols, see the SYMF defines
141 DWORD MaxNameLength; // maximum size of symbol name in 'Name'
142 CHAR Name[1]; // symbol name (null terminated string)
143} IMAGEHLP_SYMBOL64, *PIMAGEHLP_SYMBOL64;
144typedef enum
145{
146 AddrMode1616,
147 AddrMode1632,
148 AddrModeReal,
149 AddrModeFlat
150} ADDRESS_MODE;
151typedef struct _tagADDRESS64
152{
153 DWORD64 Offset;
154 WORD Segment;
155 ADDRESS_MODE Mode;
156} ADDRESS64, *LPADDRESS64;
157typedef struct _KDHELP64
158{
159 DWORD64 Thread;
160 DWORD ThCallbackStack;
161 DWORD ThCallbackBStore;
162 DWORD NextCallback;
163 DWORD FramePointer;
164 DWORD64 KiCallUserMode;
165 DWORD64 KeUserCallbackDispatcher;
166 DWORD64 SystemRangeStart;
167 DWORD64 Reserved[8];
168} KDHELP64, *PKDHELP64;
169typedef struct _tagSTACKFRAME64
170{
171 ADDRESS64 AddrPC; // program counter
172 ADDRESS64 AddrReturn; // return address
173 ADDRESS64 AddrFrame; // frame pointer
174 ADDRESS64 AddrStack; // stack pointer
175 ADDRESS64 AddrBStore; // backing store pointer
176 PVOID FuncTableEntry; // pointer to pdata/fpo or NULL
177 DWORD64 Params[4]; // possible arguments to the function
178 BOOL Far; // WOW far call
179 BOOL Virtual; // is this a virtual frame?
180 DWORD64 Reserved[3];
181 KDHELP64 KdHelp;
182} STACKFRAME64, *LPSTACKFRAME64;
183typedef BOOL(__stdcall* PREAD_PROCESS_MEMORY_ROUTINE64)(HANDLE hProcess,
184 DWORD64 qwBaseAddress,
185 PVOID lpBuffer,
186 DWORD nSize,
187 LPDWORD lpNumberOfBytesRead);
188typedef PVOID(__stdcall* PFUNCTION_TABLE_ACCESS_ROUTINE64)(HANDLE hProcess, DWORD64 AddrBase);
189typedef DWORD64(__stdcall* PGET_MODULE_BASE_ROUTINE64)(HANDLE hProcess, DWORD64 Address);
190typedef DWORD64(__stdcall* PTRANSLATE_ADDRESS_ROUTINE64)(HANDLE hProcess,
191 HANDLE hThread,
192 LPADDRESS64 lpaddr);
193
194// clang-format off
195#define SYMOPT_CASE_INSENSITIVE 0x00000001
196#define SYMOPT_UNDNAME 0x00000002
197#define SYMOPT_DEFERRED_LOADS 0x00000004
198#define SYMOPT_NO_CPP 0x00000008
199#define SYMOPT_LOAD_LINES 0x00000010
200#define SYMOPT_OMAP_FIND_NEAREST 0x00000020
201#define SYMOPT_LOAD_ANYTHING 0x00000040
202#define SYMOPT_IGNORE_CVREC 0x00000080
203#define SYMOPT_NO_UNQUALIFIED_LOADS 0x00000100
204#define SYMOPT_FAIL_CRITICAL_ERRORS 0x00000200
205#define SYMOPT_EXACT_SYMBOLS 0x00000400
206#define SYMOPT_ALLOW_ABSOLUTE_SYMBOLS 0x00000800
207#define SYMOPT_IGNORE_NT_SYMPATH 0x00001000
208#define SYMOPT_INCLUDE_32BIT_MODULES 0x00002000
209#define SYMOPT_PUBLICS_ONLY 0x00004000
210#define SYMOPT_NO_PUBLICS 0x00008000
211#define SYMOPT_AUTO_PUBLICS 0x00010000
212#define SYMOPT_NO_IMAGE_SEARCH 0x00020000
213#define SYMOPT_SECURE 0x00040000
214#define SYMOPT_DEBUG 0x80000000
215#define UNDNAME_COMPLETE (0x0000) // Enable full undecoration
216#define UNDNAME_NAME_ONLY (0x1000) // Crack only the name for primary declaration;
217// clang-format on
218
219#endif // _MSC_VER < 1300
220#pragma pack(pop)
221
222// Some missing defines (for VC5/6):
223#ifndef INVALID_FILE_ATTRIBUTES
224#define INVALID_FILE_ATTRIBUTES ((DWORD)-1)
225#endif
226
227// secure-CRT_functions are only available starting with VC8
228#if _MSC_VER < 1400
229#define strcpy_s(dst, len, src) strcpy(dst, src)
230#define strncpy_s(dst, len, src, maxLen) strncpy(dst, len, src)
231#define strcat_s(dst, len, src) strcat(dst, src)
232#define _snprintf_s _snprintf
233#define _tcscat_s _tcscat
234#endif
235
236static void MyStrCpy(char* szDest, size_t nMaxDestSize, const char* szSrc)
237{
238 if (nMaxDestSize <= 0)
239 return;
240 strncpy_s(szDest, nMaxDestSize, szSrc, _TRUNCATE);
241 // INFO: _TRUNCATE will ensure that it is null-terminated;
242 // but with older compilers (<1400) it uses "strncpy" and this does not!)
243 szDest[nMaxDestSize - 1] = 0;
244} // MyStrCpy
245
246// Normally it should be enough to use 'CONTEXT_FULL' (better would be 'CONTEXT_ALL')
247#define USED_CONTEXT_FLAGS CONTEXT_FULL
248
249class StackWalkerInternal
250{
251public:
252 StackWalkerInternal(StackWalker* parent, HANDLE hProcess)
253 {
254 m_parent = parent;
255 m_hDbhHelp = NULL;
256 pSC = NULL;
257 m_hProcess = hProcess;
258 m_szSymPath = NULL;
259 pSFTA = NULL;
260 pSGLFA = NULL;
261 pSGMB = NULL;
262 pSGMI = NULL;
263 pSGO = NULL;
264 pSGSFA = NULL;
265 pSI = NULL;
266 pSLM = NULL;
267 pSSO = NULL;
268 pSW = NULL;
269 pUDSN = NULL;
270 pSGSP = NULL;
271 }
272 ~StackWalkerInternal()
273 {
274 if (pSC != NULL)
275 pSC(m_hProcess); // SymCleanup
276 if (m_hDbhHelp != NULL)
277 FreeLibrary(m_hDbhHelp);
278 m_hDbhHelp = NULL;
279 m_parent = NULL;
280 if (m_szSymPath != NULL)
281 free(m_szSymPath);
282 m_szSymPath = NULL;
283 }
284 BOOL Init(LPCSTR szSymPath)
285 {
286 if (m_parent == NULL)
287 return FALSE;
288 // Dynamically load the Entry-Points for dbghelp.dll:
289 // First try to load the newest one from
290 TCHAR szTemp[4096];
291 // But before we do this, we first check if the ".local" file exists
292 if (GetModuleFileName(NULL, szTemp, 4096) > 0)
293 {
294 _tcscat_s(szTemp, _T(".local"));
295 if (GetFileAttributes(szTemp) == INVALID_FILE_ATTRIBUTES)
296 {
297 // ".local" file does not exist, so we can try to load the dbghelp.dll from the "Debugging Tools for Windows"
298 // Ok, first try the new path according to the architecture:
299#ifdef _M_IX86
300 if ((m_hDbhHelp == NULL) && (GetEnvironmentVariable(_T("ProgramFiles"), szTemp, 4096) > 0))
301 {
302 _tcscat_s(szTemp, _T("\\Debugging Tools for Windows (x86)\\dbghelp.dll"));
303 // now check if the file exists:
304 if (GetFileAttributes(szTemp) != INVALID_FILE_ATTRIBUTES)
305 {
306 m_hDbhHelp = LoadLibrary(szTemp);
307 }
308 }
309#elif _M_X64
310 if ((m_hDbhHelp == NULL) && (GetEnvironmentVariable(_T("ProgramFiles"), szTemp, 4096) > 0))
311 {
312 _tcscat_s(szTemp, _T("\\Debugging Tools for Windows (x64)\\dbghelp.dll"));
313 // now check if the file exists:
314 if (GetFileAttributes(szTemp) != INVALID_FILE_ATTRIBUTES)
315 {
316 m_hDbhHelp = LoadLibrary(szTemp);
317 }
318 }
319#elif _M_IA64
320 if ((m_hDbhHelp == NULL) && (GetEnvironmentVariable(_T("ProgramFiles"), szTemp, 4096) > 0))
321 {
322 _tcscat_s(szTemp, _T("\\Debugging Tools for Windows (ia64)\\dbghelp.dll"));
323 // now check if the file exists:
324 if (GetFileAttributes(szTemp) != INVALID_FILE_ATTRIBUTES)
325 {
326 m_hDbhHelp = LoadLibrary(szTemp);
327 }
328 }
329#endif
330 // If still not found, try the old directories...
331 if ((m_hDbhHelp == NULL) && (GetEnvironmentVariable(_T("ProgramFiles"), szTemp, 4096) > 0))
332 {
333 _tcscat_s(szTemp, _T("\\Debugging Tools for Windows\\dbghelp.dll"));
334 // now check if the file exists:
335 if (GetFileAttributes(szTemp) != INVALID_FILE_ATTRIBUTES)
336 {
337 m_hDbhHelp = LoadLibrary(szTemp);
338 }
339 }
340#if defined _M_X64 || defined _M_IA64
341 // Still not found? Then try to load the (old) 64-Bit version:
342 if ((m_hDbhHelp == NULL) && (GetEnvironmentVariable(_T("ProgramFiles"), szTemp, 4096) > 0))
343 {
344 _tcscat_s(szTemp, _T("\\Debugging Tools for Windows 64-Bit\\dbghelp.dll"));
345 if (GetFileAttributes(szTemp) != INVALID_FILE_ATTRIBUTES)
346 {
347 m_hDbhHelp = LoadLibrary(szTemp);
348 }
349 }
350#endif
351 }
352 }
353 if (m_hDbhHelp == NULL) // if not already loaded, try to load a default-one
354 m_hDbhHelp = LoadLibrary(_T("dbghelp.dll"));
355 if (m_hDbhHelp == NULL)
356 return FALSE;
357 pSI = (tSI)GetProcAddress(m_hDbhHelp, "SymInitialize");
358 pSC = (tSC)GetProcAddress(m_hDbhHelp, "SymCleanup");
359
360 pSW = (tSW)GetProcAddress(m_hDbhHelp, "StackWalk64");
361 pSGO = (tSGO)GetProcAddress(m_hDbhHelp, "SymGetOptions");
362 pSSO = (tSSO)GetProcAddress(m_hDbhHelp, "SymSetOptions");
363
364 pSFTA = (tSFTA)GetProcAddress(m_hDbhHelp, "SymFunctionTableAccess64");
365 pSGLFA = (tSGLFA)GetProcAddress(m_hDbhHelp, "SymGetLineFromAddr64");
366 pSGMB = (tSGMB)GetProcAddress(m_hDbhHelp, "SymGetModuleBase64");
367 pSGMI = (tSGMI)GetProcAddress(m_hDbhHelp, "SymGetModuleInfo64");
368 pSGSFA = (tSGSFA)GetProcAddress(m_hDbhHelp, "SymGetSymFromAddr64");
369 pUDSN = (tUDSN)GetProcAddress(m_hDbhHelp, "UnDecorateSymbolName");
370 pSLM = (tSLM)GetProcAddress(m_hDbhHelp, "SymLoadModule64");
371 pSGSP = (tSGSP)GetProcAddress(m_hDbhHelp, "SymGetSearchPath");
372
373 if (pSC == NULL || pSFTA == NULL || pSGMB == NULL || pSGMI == NULL || pSGO == NULL ||
374 pSGSFA == NULL || pSI == NULL || pSSO == NULL || pSW == NULL || pUDSN == NULL ||
375 pSLM == NULL)
376 {
377 FreeLibrary(m_hDbhHelp);
378 m_hDbhHelp = NULL;
379 pSC = NULL;
380 return FALSE;
381 }
382
383 // SymInitialize
384 if (szSymPath != NULL)
385 m_szSymPath = _strdup(szSymPath);
386 if (this->pSI(m_hProcess, m_szSymPath, FALSE) == FALSE)
387 this->m_parent->OnDbgHelpErr("SymInitialize", GetLastError(), 0);
388
389 DWORD symOptions = this->pSGO(); // SymGetOptions
390 symOptions |= SYMOPT_LOAD_LINES;
391 symOptions |= SYMOPT_FAIL_CRITICAL_ERRORS;
392 //symOptions |= SYMOPT_NO_PROMPTS;
393 // SymSetOptions
394 symOptions = this->pSSO(symOptions);
395
396 char buf[StackWalker::STACKWALK_MAX_NAMELEN] = {0};
397 if (this->pSGSP != NULL)
398 {
399 if (this->pSGSP(m_hProcess, buf, StackWalker::STACKWALK_MAX_NAMELEN) == FALSE)
400 this->m_parent->OnDbgHelpErr("SymGetSearchPath", GetLastError(), 0);
401 }
402 char szUserName[1024] = {0};
403 DWORD dwSize = 1024;
404 GetUserNameA(szUserName, &dwSize);
405 this->m_parent->OnSymInit(buf, symOptions, szUserName);
406
407 return TRUE;
408 }
409
410 StackWalker* m_parent;
411
412 HMODULE m_hDbhHelp;
413 HANDLE m_hProcess;
414 LPSTR m_szSymPath;
415
416#pragma pack(push, 8)
417 typedef struct IMAGEHLP_MODULE64_V3
418 {
419 DWORD SizeOfStruct; // set to sizeof(IMAGEHLP_MODULE64)
420 DWORD64 BaseOfImage; // base load address of module
421 DWORD ImageSize; // virtual size of the loaded module
422 DWORD TimeDateStamp; // date/time stamp from pe header
423 DWORD CheckSum; // checksum from the pe header
424 DWORD NumSyms; // number of symbols in the symbol table
425 SYM_TYPE SymType; // type of symbols loaded
426 CHAR ModuleName[32]; // module name
427 CHAR ImageName[256]; // image name
428 CHAR LoadedImageName[256]; // symbol file name
429 // new elements: 07-Jun-2002
430 CHAR LoadedPdbName[256]; // pdb file name
431 DWORD CVSig; // Signature of the CV record in the debug directories
432 CHAR CVData[MAX_PATH * 3]; // Contents of the CV record
433 DWORD PdbSig; // Signature of PDB
434 GUID PdbSig70; // Signature of PDB (VC 7 and up)
435 DWORD PdbAge; // DBI age of pdb
436 BOOL PdbUnmatched; // loaded an unmatched pdb
437 BOOL DbgUnmatched; // loaded an unmatched dbg
438 BOOL LineNumbers; // we have line number information
439 BOOL GlobalSymbols; // we have internal symbol information
440 BOOL TypeInfo; // we have type information
441 // new elements: 17-Dec-2003
442 BOOL SourceIndexed; // pdb supports source server
443 BOOL Publics; // contains public symbols
444 };
445
446 typedef struct IMAGEHLP_MODULE64_V2
447 {
448 DWORD SizeOfStruct; // set to sizeof(IMAGEHLP_MODULE64)
449 DWORD64 BaseOfImage; // base load address of module
450 DWORD ImageSize; // virtual size of the loaded module
451 DWORD TimeDateStamp; // date/time stamp from pe header
452 DWORD CheckSum; // checksum from the pe header
453 DWORD NumSyms; // number of symbols in the symbol table
454 SYM_TYPE SymType; // type of symbols loaded
455 CHAR ModuleName[32]; // module name
456 CHAR ImageName[256]; // image name
457 CHAR LoadedImageName[256]; // symbol file name
458 };
459#pragma pack(pop)
460
461 // SymCleanup()
462 typedef BOOL(__stdcall* tSC)(IN HANDLE hProcess);
463 tSC pSC;
464
465 // SymFunctionTableAccess64()
466 typedef PVOID(__stdcall* tSFTA)(HANDLE hProcess, DWORD64 AddrBase);
467 tSFTA pSFTA;
468
469 // SymGetLineFromAddr64()
470 typedef BOOL(__stdcall* tSGLFA)(IN HANDLE hProcess,
471 IN DWORD64 dwAddr,
472 OUT PDWORD pdwDisplacement,
473 OUT PIMAGEHLP_LINE64 Line);
474 tSGLFA pSGLFA;
475
476 // SymGetModuleBase64()
477 typedef DWORD64(__stdcall* tSGMB)(IN HANDLE hProcess, IN DWORD64 dwAddr);
478 tSGMB pSGMB;
479
480 // SymGetModuleInfo64()
481 typedef BOOL(__stdcall* tSGMI)(IN HANDLE hProcess,
482 IN DWORD64 dwAddr,
483 OUT IMAGEHLP_MODULE64_V3* ModuleInfo);
484 tSGMI pSGMI;
485
486 // SymGetOptions()
487 typedef DWORD(__stdcall* tSGO)(VOID);
488 tSGO pSGO;
489
490 // SymGetSymFromAddr64()
491 typedef BOOL(__stdcall* tSGSFA)(IN HANDLE hProcess,
492 IN DWORD64 dwAddr,
493 OUT PDWORD64 pdwDisplacement,
494 OUT PIMAGEHLP_SYMBOL64 Symbol);
495 tSGSFA pSGSFA;
496
497 // SymInitialize()
498 typedef BOOL(__stdcall* tSI)(IN HANDLE hProcess, IN PSTR UserSearchPath, IN BOOL fInvadeProcess);
499 tSI pSI;
500
501 // SymLoadModule64()
502 typedef DWORD64(__stdcall* tSLM)(IN HANDLE hProcess,
503 IN HANDLE hFile,
504 IN PSTR ImageName,
505 IN PSTR ModuleName,
506 IN DWORD64 BaseOfDll,
507 IN DWORD SizeOfDll);
508 tSLM pSLM;
509
510 // SymSetOptions()
511 typedef DWORD(__stdcall* tSSO)(IN DWORD SymOptions);
512 tSSO pSSO;
513
514 // StackWalk64()
515 typedef BOOL(__stdcall* tSW)(DWORD MachineType,
516 HANDLE hProcess,
517 HANDLE hThread,
518 LPSTACKFRAME64 StackFrame,
519 PVOID ContextRecord,
520 PREAD_PROCESS_MEMORY_ROUTINE64 ReadMemoryRoutine,
521 PFUNCTION_TABLE_ACCESS_ROUTINE64 FunctionTableAccessRoutine,
522 PGET_MODULE_BASE_ROUTINE64 GetModuleBaseRoutine,
523 PTRANSLATE_ADDRESS_ROUTINE64 TranslateAddress);
524 tSW pSW;
525
526 // UnDecorateSymbolName()
527 typedef DWORD(__stdcall WINAPI* tUDSN)(PCSTR DecoratedName,
528 PSTR UnDecoratedName,
529 DWORD UndecoratedLength,
530 DWORD Flags);
531 tUDSN pUDSN;
532
533 typedef BOOL(__stdcall WINAPI* tSGSP)(HANDLE hProcess, PSTR SearchPath, DWORD SearchPathLength);
534 tSGSP pSGSP;
535
536private:
537// **************************************** ToolHelp32 ************************
538#define MAX_MODULE_NAME32 255
539#define TH32CS_SNAPMODULE 0x00000008
540#pragma pack(push, 8)
541 typedef struct tagMODULEENTRY32
542 {
543 DWORD dwSize;
544 DWORD th32ModuleID; // This module
545 DWORD th32ProcessID; // owning process
546 DWORD GlblcntUsage; // Global usage count on the module
547 DWORD ProccntUsage; // Module usage count in th32ProcessID's context
548 BYTE* modBaseAddr; // Base address of module in th32ProcessID's context
549 DWORD modBaseSize; // Size in bytes of module starting at modBaseAddr
550 HMODULE hModule; // The hModule of this module in th32ProcessID's context
551 char szModule[MAX_MODULE_NAME32 + 1];
552 char szExePath[MAX_PATH];
553 } MODULEENTRY32;
554 typedef MODULEENTRY32* PMODULEENTRY32;
555 typedef MODULEENTRY32* LPMODULEENTRY32;
556#pragma pack(pop)
557
558 BOOL GetModuleListTH32(HANDLE hProcess, DWORD pid)
559 {
560 // CreateToolhelp32Snapshot()
561 typedef HANDLE(__stdcall * tCT32S)(DWORD dwFlags, DWORD th32ProcessID);
562 // Module32First()
563 typedef BOOL(__stdcall * tM32F)(HANDLE hSnapshot, LPMODULEENTRY32 lpme);
564 // Module32Next()
565 typedef BOOL(__stdcall * tM32N)(HANDLE hSnapshot, LPMODULEENTRY32 lpme);
566
567 // try both dlls...
568 const TCHAR* dllname[] = {_T("kernel32.dll"), _T("tlhelp32.dll")};
569 HINSTANCE hToolhelp = NULL;
570 tCT32S pCT32S = NULL;
571 tM32F pM32F = NULL;
572 tM32N pM32N = NULL;
573
574 HANDLE hSnap;
575 MODULEENTRY32 me;
576 me.dwSize = sizeof(me);
577 BOOL keepGoing;
578 size_t i;
579
580 for (i = 0; i < (sizeof(dllname) / sizeof(dllname[0])); i++)
581 {
582 hToolhelp = LoadLibrary(dllname[i]);
583 if (hToolhelp == NULL)
584 continue;
585 pCT32S = (tCT32S)GetProcAddress(hToolhelp, "CreateToolhelp32Snapshot");
586 pM32F = (tM32F)GetProcAddress(hToolhelp, "Module32First");
587 pM32N = (tM32N)GetProcAddress(hToolhelp, "Module32Next");
588 if ((pCT32S != NULL) && (pM32F != NULL) && (pM32N != NULL))
589 break; // found the functions!
590 FreeLibrary(hToolhelp);
591 hToolhelp = NULL;
592 }
593
594 if (hToolhelp == NULL)
595 return FALSE;
596
597 hSnap = pCT32S(TH32CS_SNAPMODULE, pid);
598 if (hSnap == (HANDLE)-1)
599 {
600 FreeLibrary(hToolhelp);
601 return FALSE;
602 }
603
604 keepGoing = !!pM32F(hSnap, &me);
605 int cnt = 0;
606 while (keepGoing)
607 {
608 this->LoadModule(hProcess, me.szExePath, me.szModule, (DWORD64)me.modBaseAddr,
609 me.modBaseSize);
610 cnt++;
611 keepGoing = !!pM32N(hSnap, &me);
612 }
613 CloseHandle(hSnap);
614 FreeLibrary(hToolhelp);
615 if (cnt <= 0)
616 return FALSE;
617 return TRUE;
618 } // GetModuleListTH32
619
620 // **************************************** PSAPI ************************
621 typedef struct _MODULEINFO
622 {
623 LPVOID lpBaseOfDll;
624 DWORD SizeOfImage;
625 LPVOID EntryPoint;
626 } MODULEINFO, *LPMODULEINFO;
627
628 BOOL GetModuleListPSAPI(HANDLE hProcess)
629 {
630 // EnumProcessModules()
631 typedef BOOL(__stdcall * tEPM)(HANDLE hProcess, HMODULE * lphModule, DWORD cb,
632 LPDWORD lpcbNeeded);
633 // GetModuleFileNameEx()
634 typedef DWORD(__stdcall * tGMFNE)(HANDLE hProcess, HMODULE hModule, LPSTR lpFilename,
635 DWORD nSize);
636 // GetModuleBaseName()
637 typedef DWORD(__stdcall * tGMBN)(HANDLE hProcess, HMODULE hModule, LPSTR lpFilename,
638 DWORD nSize);
639 // GetModuleInformation()
640 typedef BOOL(__stdcall * tGMI)(HANDLE hProcess, HMODULE hModule, LPMODULEINFO pmi, DWORD nSize);
641
642 HINSTANCE hPsapi;
643 tEPM pEPM;
644 tGMFNE pGMFNE;
645 tGMBN pGMBN;
646 tGMI pGMI;
647
648 DWORD i;
649 //ModuleEntry e;
650 DWORD cbNeeded;
651 MODULEINFO mi;
652 HMODULE* hMods = 0;
653 char* tt = NULL;
654 char* tt2 = NULL;
655 const SIZE_T TTBUFLEN = 8096;
656 int cnt = 0;
657
658 hPsapi = LoadLibrary(_T("psapi.dll"));
659 if (hPsapi == NULL)
660 return FALSE;
661
662 pEPM = (tEPM)GetProcAddress(hPsapi, "EnumProcessModules");
663 pGMFNE = (tGMFNE)GetProcAddress(hPsapi, "GetModuleFileNameExA");
664 pGMBN = (tGMFNE)GetProcAddress(hPsapi, "GetModuleBaseNameA");
665 pGMI = (tGMI)GetProcAddress(hPsapi, "GetModuleInformation");
666 if ((pEPM == NULL) || (pGMFNE == NULL) || (pGMBN == NULL) || (pGMI == NULL))
667 {
668 // we couldn't find all functions
669 FreeLibrary(hPsapi);
670 return FALSE;
671 }
672
673 hMods = (HMODULE*)malloc(sizeof(HMODULE) * (TTBUFLEN / sizeof(HMODULE)));
674 tt = (char*)malloc(sizeof(char) * TTBUFLEN);
675 tt2 = (char*)malloc(sizeof(char) * TTBUFLEN);
676 if ((hMods == NULL) || (tt == NULL) || (tt2 == NULL))
677 goto cleanup;
678
679 if (!pEPM(hProcess, hMods, TTBUFLEN, &cbNeeded))
680 {
681 //_ftprintf(fLogFile, _T("%lu: EPM failed, GetLastError = %lu\n"), g_dwShowCount, gle );
682 goto cleanup;
683 }
684
685 if (cbNeeded > TTBUFLEN)
686 {
687 //_ftprintf(fLogFile, _T("%lu: More than %lu module handles. Huh?\n"), g_dwShowCount, lenof( hMods ) );
688 goto cleanup;
689 }
690
691 for (i = 0; i < cbNeeded / sizeof(hMods[0]); i++)
692 {
693 // base address, size
694 pGMI(hProcess, hMods[i], &mi, sizeof(mi));
695 // image file name
696 tt[0] = 0;
697 pGMFNE(hProcess, hMods[i], tt, TTBUFLEN);
698 // module name
699 tt2[0] = 0;
700 pGMBN(hProcess, hMods[i], tt2, TTBUFLEN);
701
702 DWORD dwRes = this->LoadModule(hProcess, tt, tt2, (DWORD64)mi.lpBaseOfDll, mi.SizeOfImage);
703 if (dwRes != ERROR_SUCCESS)
704 this->m_parent->OnDbgHelpErr("LoadModule", dwRes, 0);
705 cnt++;
706 }
707
708 cleanup:
709 if (hPsapi != NULL)
710 FreeLibrary(hPsapi);
711 if (tt2 != NULL)
712 free(tt2);
713 if (tt != NULL)
714 free(tt);
715 if (hMods != NULL)
716 free(hMods);
717
718 return cnt != 0;
719 } // GetModuleListPSAPI
720
721 DWORD LoadModule(HANDLE hProcess, LPCSTR img, LPCSTR mod, DWORD64 baseAddr, DWORD size)
722 {
723 CHAR* szImg = _strdup(img);
724 CHAR* szMod = _strdup(mod);
725 DWORD result = ERROR_SUCCESS;
726 if ((szImg == NULL) || (szMod == NULL))
727 result = ERROR_NOT_ENOUGH_MEMORY;
728 else
729 {
730 if (pSLM(hProcess, 0, szImg, szMod, baseAddr, size) == 0)
731 result = GetLastError();
732 }
733 ULONGLONG fileVersion = 0;
734 if ((m_parent != NULL) && (szImg != NULL))
735 {
736 // try to retrieve the file-version:
737 if ((this->m_parent->m_options & StackWalker::RetrieveFileVersion) != 0)
738 {
739 VS_FIXEDFILEINFO* fInfo = NULL;
740 DWORD dwHandle;
741 DWORD dwSize = GetFileVersionInfoSizeA(szImg, &dwHandle);
742 if (dwSize > 0)
743 {
744 LPVOID vData = malloc(dwSize);
745 if (vData != NULL)
746 {
747 if (GetFileVersionInfoA(szImg, dwHandle, dwSize, vData) != 0)
748 {
749 UINT len;
750 TCHAR szSubBlock[] = _T("\\");
751 if (VerQueryValue(vData, szSubBlock, (LPVOID*)&fInfo, &len) == 0)
752 fInfo = NULL;
753 else
754 {
755 fileVersion =
756 ((ULONGLONG)fInfo->dwFileVersionLS) + ((ULONGLONG)fInfo->dwFileVersionMS << 32);
757 }
758 }
759 free(vData);
760 }
761 }
762 }
763
764 // Retrieve some additional-infos about the module
765 IMAGEHLP_MODULE64_V3 Module;
766 const char* szSymType = "-unknown-";
767 if (this->GetModuleInfo(hProcess, baseAddr, &Module) != FALSE)
768 {
769 switch (Module.SymType)
770 {
771 case SymNone:
772 szSymType = "-nosymbols-";
773 break;
774 case SymCoff: // 1
775 szSymType = "COFF";
776 break;
777 case SymCv: // 2
778 szSymType = "CV";
779 break;
780 case SymPdb: // 3
781 szSymType = "PDB";
782 break;
783 case SymExport: // 4
784 szSymType = "-exported-";
785 break;
786 case SymDeferred: // 5
787 szSymType = "-deferred-";
788 break;
789 case SymSym: // 6
790 szSymType = "SYM";
791 break;
792 case 7: // SymDia:
793 szSymType = "DIA";
794 break;
795 case 8: //SymVirtual:
796 szSymType = "Virtual";
797 break;
798 }
799 }
800 LPCSTR pdbName = Module.LoadedImageName;
801 if (Module.LoadedPdbName[0] != 0)
802 pdbName = Module.LoadedPdbName;
803 this->m_parent->OnLoadModule(img, mod, baseAddr, size, result, szSymType, pdbName,
804 fileVersion);
805 }
806 if (szImg != NULL)
807 free(szImg);
808 if (szMod != NULL)
809 free(szMod);
810 return result;
811 }
812
813public:
814 BOOL LoadModules(HANDLE hProcess, DWORD dwProcessId)
815 {
816 // first try toolhelp32
817 if (GetModuleListTH32(hProcess, dwProcessId))
818 return true;
819 // then try psapi
820 return GetModuleListPSAPI(hProcess);
821 }
822
823 BOOL GetModuleInfo(HANDLE hProcess, DWORD64 baseAddr, IMAGEHLP_MODULE64_V3* pModuleInfo)
824 {
825 memset(pModuleInfo, 0, sizeof(IMAGEHLP_MODULE64_V3));
826 if (this->pSGMI == NULL)
827 {
828 SetLastError(ERROR_DLL_INIT_FAILED);
829 return FALSE;
830 }
831 // First try to use the larger ModuleInfo-Structure
832 pModuleInfo->SizeOfStruct = sizeof(IMAGEHLP_MODULE64_V3);
833 void* pData = malloc(
834 4096); // reserve enough memory, so the bug in v6.3.5.1 does not lead to memory-overwrites...
835 if (pData == NULL)
836 {
837 SetLastError(ERROR_NOT_ENOUGH_MEMORY);
838 return FALSE;
839 }
840 memcpy(pData, pModuleInfo, sizeof(IMAGEHLP_MODULE64_V3));
841 static bool s_useV3Version = true;
842 if (s_useV3Version)
843 {
844 if (this->pSGMI(hProcess, baseAddr, (IMAGEHLP_MODULE64_V3*)pData) != FALSE)
845 {
846 // only copy as much memory as is reserved...
847 memcpy(pModuleInfo, pData, sizeof(IMAGEHLP_MODULE64_V3));
848 pModuleInfo->SizeOfStruct = sizeof(IMAGEHLP_MODULE64_V3);
849 free(pData);
850 return TRUE;
851 }
852 s_useV3Version = false; // to prevent unnecessary calls with the larger struct...
853 }
854
855 // could not retrieve the bigger structure, try with the smaller one (as defined in VC7.1)...
856 pModuleInfo->SizeOfStruct = sizeof(IMAGEHLP_MODULE64_V2);
857 memcpy(pData, pModuleInfo, sizeof(IMAGEHLP_MODULE64_V2));
858 if (this->pSGMI(hProcess, baseAddr, (IMAGEHLP_MODULE64_V3*)pData) != FALSE)
859 {
860 // only copy as much memory as is reserved...
861 memcpy(pModuleInfo, pData, sizeof(IMAGEHLP_MODULE64_V2));
862 pModuleInfo->SizeOfStruct = sizeof(IMAGEHLP_MODULE64_V2);
863 free(pData);
864 return TRUE;
865 }
866 free(pData);
867 SetLastError(ERROR_DLL_INIT_FAILED);
868 return FALSE;
869 }
870};
871
872// #############################################################
873StackWalker::StackWalker(DWORD dwProcessId, HANDLE hProcess)
874{
875 this->m_options = OptionsAll;
876 this->m_modulesLoaded = FALSE;
877 this->m_hProcess = hProcess;
878 this->m_sw = new StackWalkerInternal(this, this->m_hProcess);
879 this->m_dwProcessId = dwProcessId;
880 this->m_szSymPath = NULL;
881 this->m_MaxRecursionCount = 1000;
882}
883StackWalker::StackWalker(int options, LPCSTR szSymPath, DWORD dwProcessId, HANDLE hProcess)
884{
885 this->m_options = options;
886 this->m_modulesLoaded = FALSE;
887 this->m_hProcess = hProcess;
888 this->m_sw = new StackWalkerInternal(this, this->m_hProcess);
889 this->m_dwProcessId = dwProcessId;
890 if (szSymPath != NULL)
891 {
892 this->m_szSymPath = _strdup(szSymPath);
893 this->m_options |= SymBuildPath;
894 }
895 else
896 this->m_szSymPath = NULL;
897 this->m_MaxRecursionCount = 1000;
898}
899
900StackWalker::~StackWalker()
901{
902 if (m_szSymPath != NULL)
903 free(m_szSymPath);
904 m_szSymPath = NULL;
905 if (this->m_sw != NULL)
906 delete this->m_sw;
907 this->m_sw = NULL;
908}
909
910BOOL StackWalker::LoadModules()
911{
912 if (this->m_sw == NULL)
913 {
914 SetLastError(ERROR_DLL_INIT_FAILED);
915 return FALSE;
916 }
917 if (m_modulesLoaded != FALSE)
918 return TRUE;
919
920 // Build the sym-path:
921 char* szSymPath = NULL;
922 if ((this->m_options & SymBuildPath) != 0)
923 {
924 const size_t nSymPathLen = 4096;
925 szSymPath = (char*)malloc(nSymPathLen);
926 if (szSymPath == NULL)
927 {
928 SetLastError(ERROR_NOT_ENOUGH_MEMORY);
929 return FALSE;
930 }
931 szSymPath[0] = 0;
932 // Now first add the (optional) provided sympath:
933 if (this->m_szSymPath != NULL)
934 {
935 strcat_s(szSymPath, nSymPathLen, this->m_szSymPath);
936 strcat_s(szSymPath, nSymPathLen, ";");
937 }
938
939 strcat_s(szSymPath, nSymPathLen, ".;");
940
941 const size_t nTempLen = 1024;
942 char szTemp[nTempLen];
943 // Now add the current directory:
944 if (GetCurrentDirectoryA(nTempLen, szTemp) > 0)
945 {
946 szTemp[nTempLen - 1] = 0;
947 strcat_s(szSymPath, nSymPathLen, szTemp);
948 strcat_s(szSymPath, nSymPathLen, ";");
949 }
950
951 // Now add the path for the main-module:
952 if (GetModuleFileNameA(NULL, szTemp, nTempLen) > 0)
953 {
954 szTemp[nTempLen - 1] = 0;
955 for (char* p = (szTemp + strlen(szTemp) - 1); p >= szTemp; --p)
956 {
957 // locate the rightmost path separator
958 if ((*p == '\\') || (*p == '/') || (*p == ':'))
959 {
960 *p = 0;
961 break;
962 }
963 } // for (search for path separator...)
964 if (strlen(szTemp) > 0)
965 {
966 strcat_s(szSymPath, nSymPathLen, szTemp);
967 strcat_s(szSymPath, nSymPathLen, ";");
968 }
969 }
970 if (GetEnvironmentVariableA("_NT_SYMBOL_PATH", szTemp, nTempLen) > 0)
971 {
972 szTemp[nTempLen - 1] = 0;
973 strcat_s(szSymPath, nSymPathLen, szTemp);
974 strcat_s(szSymPath, nSymPathLen, ";");
975 }
976 if (GetEnvironmentVariableA("_NT_ALTERNATE_SYMBOL_PATH", szTemp, nTempLen) > 0)
977 {
978 szTemp[nTempLen - 1] = 0;
979 strcat_s(szSymPath, nSymPathLen, szTemp);
980 strcat_s(szSymPath, nSymPathLen, ";");
981 }
982 if (GetEnvironmentVariableA("SYSTEMROOT", szTemp, nTempLen) > 0)
983 {
984 szTemp[nTempLen - 1] = 0;
985 strcat_s(szSymPath, nSymPathLen, szTemp);
986 strcat_s(szSymPath, nSymPathLen, ";");
987 // also add the "system32"-directory:
988 strcat_s(szTemp, nTempLen, "\\system32");
989 strcat_s(szSymPath, nSymPathLen, szTemp);
990 strcat_s(szSymPath, nSymPathLen, ";");
991 }
992
993 if ((this->m_options & SymUseSymSrv) != 0)
994 {
995 if (GetEnvironmentVariableA("SYSTEMDRIVE", szTemp, nTempLen) > 0)
996 {
997 szTemp[nTempLen - 1] = 0;
998 strcat_s(szSymPath, nSymPathLen, "SRV*");
999 strcat_s(szSymPath, nSymPathLen, szTemp);
1000 strcat_s(szSymPath, nSymPathLen, "\\websymbols");
1001 strcat_s(szSymPath, nSymPathLen, "*http://msdl.microsoft.com/download/symbols;");
1002 }
1003 else
1004 strcat_s(szSymPath, nSymPathLen,
1005 "SRV*c:\\websymbols*http://msdl.microsoft.com/download/symbols;");
1006 }
1007 } // if SymBuildPath
1008
1009 // First Init the whole stuff...
1010 BOOL bRet = this->m_sw->Init(szSymPath);
1011 if (szSymPath != NULL)
1012 free(szSymPath);
1013 szSymPath = NULL;
1014 if (bRet == FALSE)
1015 {
1016 this->OnDbgHelpErr("Error while initializing dbghelp.dll", 0, 0);
1017 SetLastError(ERROR_DLL_INIT_FAILED);
1018 return FALSE;
1019 }
1020
1021 bRet = this->m_sw->LoadModules(this->m_hProcess, this->m_dwProcessId);
1022 if (bRet != FALSE)
1023 m_modulesLoaded = TRUE;
1024 return bRet;
1025}
1026
1027// The following is used to pass the "userData"-Pointer to the user-provided readMemoryFunction
1028// This has to be done due to a problem with the "hProcess"-parameter in x64...
1029// Because this class is in no case multi-threading-enabled (because of the limitations
1030// of dbghelp.dll) it is "safe" to use a static-variable
1031static StackWalker::PReadProcessMemoryRoutine s_readMemoryFunction = NULL;
1032static LPVOID s_readMemoryFunction_UserData = NULL;
1033
1034BOOL StackWalker::ShowCallstack(HANDLE hThread,
1035 const CONTEXT* context,
1036 PReadProcessMemoryRoutine readMemoryFunction,
1037 LPVOID pUserData)
1038{
1039 CONTEXT c;
1040 CallstackEntry csEntry;
1041 IMAGEHLP_SYMBOL64* pSym = NULL;
1042 StackWalkerInternal::IMAGEHLP_MODULE64_V3 Module;
1043 IMAGEHLP_LINE64 Line;
1044 int frameNum;
1045 bool bLastEntryCalled = true;
1046 int curRecursionCount = 0;
1047
1048 if (m_modulesLoaded == FALSE)
1049 this->LoadModules(); // ignore the result...
1050
1051 if (this->m_sw->m_hDbhHelp == NULL)
1052 {
1053 SetLastError(ERROR_DLL_INIT_FAILED);
1054 return FALSE;
1055 }
1056
1057 s_readMemoryFunction = readMemoryFunction;
1058 s_readMemoryFunction_UserData = pUserData;
1059
1060 if (context == NULL)
1061 {
1062 // If no context is provided, capture the context
1063 // See: https://stackwalker.codeplex.com/discussions/446958
1064#if _WIN32_WINNT <= 0x0501
1065 // If we need to support XP, we need to use the "old way", because "GetThreadId" is not available!
1066 if (hThread == GetCurrentThread())
1067#else
1068 if (GetThreadId(hThread) == GetCurrentThreadId())
1069#endif
1070 {
1071 GET_CURRENT_CONTEXT_STACKWALKER_CODEPLEX(c, USED_CONTEXT_FLAGS);
1072 }
1073 else
1074 {
1075 SuspendThread(hThread);
1076 memset(&c, 0, sizeof(CONTEXT));
1077 c.ContextFlags = USED_CONTEXT_FLAGS;
1078
1079 // TODO: Detect if you want to get a thread context of a different process, which is running a different processor architecture...
1080 // This does only work if we are x64 and the target process is x64 or x86;
1081 // It cannot work, if this process is x64 and the target process is x64... this is not supported...
1082 // See also: http://www.howzatt.demon.co.uk/articles/DebuggingInWin64.html
1083 if (GetThreadContext(hThread, &c) == FALSE)
1084 {
1085 ResumeThread(hThread);
1086 return FALSE;
1087 }
1088 }
1089 }
1090 else
1091 c = *context;
1092
1093 // init STACKFRAME for first call
1094 STACKFRAME64 s; // in/out stackframe
1095 memset(&s, 0, sizeof(s));
1096 DWORD imageType;
1097#ifdef _M_IX86
1098 // normally, call ImageNtHeader() and use machine info from PE header
1099 imageType = IMAGE_FILE_MACHINE_I386;
1100 s.AddrPC.Offset = c.Eip;
1101 s.AddrPC.Mode = AddrModeFlat;
1102 s.AddrFrame.Offset = c.Ebp;
1103 s.AddrFrame.Mode = AddrModeFlat;
1104 s.AddrStack.Offset = c.Esp;
1105 s.AddrStack.Mode = AddrModeFlat;
1106#elif _M_X64
1107 imageType = IMAGE_FILE_MACHINE_AMD64;
1108 s.AddrPC.Offset = c.Rip;
1109 s.AddrPC.Mode = AddrModeFlat;
1110 s.AddrFrame.Offset = c.Rsp;
1111 s.AddrFrame.Mode = AddrModeFlat;
1112 s.AddrStack.Offset = c.Rsp;
1113 s.AddrStack.Mode = AddrModeFlat;
1114#elif _M_IA64
1115 imageType = IMAGE_FILE_MACHINE_IA64;
1116 s.AddrPC.Offset = c.StIIP;
1117 s.AddrPC.Mode = AddrModeFlat;
1118 s.AddrFrame.Offset = c.IntSp;
1119 s.AddrFrame.Mode = AddrModeFlat;
1120 s.AddrBStore.Offset = c.RsBSP;
1121 s.AddrBStore.Mode = AddrModeFlat;
1122 s.AddrStack.Offset = c.IntSp;
1123 s.AddrStack.Mode = AddrModeFlat;
1124#else
1125#error "Platform not supported!"
1126#endif
1127
1128 pSym = (IMAGEHLP_SYMBOL64*)malloc(sizeof(IMAGEHLP_SYMBOL64) + STACKWALK_MAX_NAMELEN);
1129 if (!pSym)
1130 goto cleanup; // not enough memory...
1131 memset(pSym, 0, sizeof(IMAGEHLP_SYMBOL64) + STACKWALK_MAX_NAMELEN);
1132 pSym->SizeOfStruct = sizeof(IMAGEHLP_SYMBOL64);
1133 pSym->MaxNameLength = STACKWALK_MAX_NAMELEN;
1134
1135 memset(&Line, 0, sizeof(Line));
1136 Line.SizeOfStruct = sizeof(Line);
1137
1138 memset(&Module, 0, sizeof(Module));
1139 Module.SizeOfStruct = sizeof(Module);
1140
1141 for (frameNum = 0;; ++frameNum)
1142 {
1143 // get next stack frame (StackWalk64(), SymFunctionTableAccess64(), SymGetModuleBase64())
1144 // if this returns ERROR_INVALID_ADDRESS (487) or ERROR_NOACCESS (998), you can
1145 // assume that either you are done, or that the stack is so hosed that the next
1146 // deeper frame could not be found.
1147 // CONTEXT need not to be supplied if imageTyp is IMAGE_FILE_MACHINE_I386!
1148 if (!this->m_sw->pSW(imageType, this->m_hProcess, hThread, &s, &c, myReadProcMem,
1149 this->m_sw->pSFTA, this->m_sw->pSGMB, NULL))
1150 {
1151 // INFO: "StackWalk64" does not set "GetLastError"...
1152 this->OnDbgHelpErr("StackWalk64", 0, s.AddrPC.Offset);
1153 break;
1154 }
1155
1156 csEntry.offset = s.AddrPC.Offset;
1157 csEntry.name[0] = 0;
1158 csEntry.undName[0] = 0;
1159 csEntry.undFullName[0] = 0;
1160 csEntry.offsetFromSmybol = 0;
1161 csEntry.offsetFromLine = 0;
1162 csEntry.lineFileName[0] = 0;
1163 csEntry.lineNumber = 0;
1164 csEntry.loadedImageName[0] = 0;
1165 csEntry.moduleName[0] = 0;
1166 if (s.AddrPC.Offset == s.AddrReturn.Offset)
1167 {
1168 if ((this->m_MaxRecursionCount > 0) && (curRecursionCount > m_MaxRecursionCount))
1169 {
1170 this->OnDbgHelpErr("StackWalk64-Endless-Callstack!", 0, s.AddrPC.Offset);
1171 break;
1172 }
1173 curRecursionCount++;
1174 }
1175 else
1176 curRecursionCount = 0;
1177 if (s.AddrPC.Offset != 0)
1178 {
1179 // we seem to have a valid PC
1180 // show procedure info (SymGetSymFromAddr64())
1181 if (this->m_sw->pSGSFA(this->m_hProcess, s.AddrPC.Offset, &(csEntry.offsetFromSmybol),
1182 pSym) != FALSE)
1183 {
1184 MyStrCpy(csEntry.name, STACKWALK_MAX_NAMELEN, pSym->Name);
1185 // UnDecorateSymbolName()
1186 this->m_sw->pUDSN(pSym->Name, csEntry.undName, STACKWALK_MAX_NAMELEN, UNDNAME_NAME_ONLY);
1187 this->m_sw->pUDSN(pSym->Name, csEntry.undFullName, STACKWALK_MAX_NAMELEN, UNDNAME_COMPLETE);
1188 }
1189 else
1190 {
1191 this->OnDbgHelpErr("SymGetSymFromAddr64", GetLastError(), s.AddrPC.Offset);
1192 }
1193
1194 // show line number info, NT5.0-method (SymGetLineFromAddr64())
1195 if (this->m_sw->pSGLFA != NULL)
1196 { // yes, we have SymGetLineFromAddr64()
1197 if (this->m_sw->pSGLFA(this->m_hProcess, s.AddrPC.Offset, &(csEntry.offsetFromLine),
1198 &Line) != FALSE)
1199 {
1200 csEntry.lineNumber = Line.LineNumber;
1201 MyStrCpy(csEntry.lineFileName, STACKWALK_MAX_NAMELEN, Line.FileName);
1202 }
1203 else
1204 {
1205 this->OnDbgHelpErr("SymGetLineFromAddr64", GetLastError(), s.AddrPC.Offset);
1206 }
1207 } // yes, we have SymGetLineFromAddr64()
1208
1209 // show module info (SymGetModuleInfo64())
1210 if (this->m_sw->GetModuleInfo(this->m_hProcess, s.AddrPC.Offset, &Module) != FALSE)
1211 { // got module info OK
1212 switch (Module.SymType)
1213 {
1214 case SymNone:
1215 csEntry.symTypeString = "-nosymbols-";
1216 break;
1217 case SymCoff:
1218 csEntry.symTypeString = "COFF";
1219 break;
1220 case SymCv:
1221 csEntry.symTypeString = "CV";
1222 break;
1223 case SymPdb:
1224 csEntry.symTypeString = "PDB";
1225 break;
1226 case SymExport:
1227 csEntry.symTypeString = "-exported-";
1228 break;
1229 case SymDeferred:
1230 csEntry.symTypeString = "-deferred-";
1231 break;
1232 case SymSym:
1233 csEntry.symTypeString = "SYM";
1234 break;
1235#if API_VERSION_NUMBER >= 9
1236 case SymDia:
1237 csEntry.symTypeString = "DIA";
1238 break;
1239#endif
1240 case 8: //SymVirtual:
1241 csEntry.symTypeString = "Virtual";
1242 break;
1243 default:
1244 //_snprintf( ty, sizeof(ty), "symtype=%ld", (long) Module.SymType );
1245 csEntry.symTypeString = NULL;
1246 break;
1247 }
1248
1249 MyStrCpy(csEntry.moduleName, STACKWALK_MAX_NAMELEN, Module.ModuleName);
1250 csEntry.baseOfImage = Module.BaseOfImage;
1251 MyStrCpy(csEntry.loadedImageName, STACKWALK_MAX_NAMELEN, Module.LoadedImageName);
1252 } // got module info OK
1253 else
1254 {
1255 this->OnDbgHelpErr("SymGetModuleInfo64", GetLastError(), s.AddrPC.Offset);
1256 }
1257 } // we seem to have a valid PC
1258
1259 CallstackEntryType et = nextEntry;
1260 if (frameNum == 0)
1261 et = firstEntry;
1262 bLastEntryCalled = false;
1263 this->OnCallstackEntry(et, csEntry);
1264
1265 if (s.AddrReturn.Offset == 0)
1266 {
1267 bLastEntryCalled = true;
1268 this->OnCallstackEntry(lastEntry, csEntry);
1269 SetLastError(ERROR_SUCCESS);
1270 break;
1271 }
1272 } // for ( frameNum )
1273
1274cleanup:
1275 if (pSym)
1276 free(pSym);
1277
1278 if (bLastEntryCalled == false)
1279 this->OnCallstackEntry(lastEntry, csEntry);
1280
1281 if (context == NULL)
1282 ResumeThread(hThread);
1283
1284 return TRUE;
1285}
1286
1287BOOL StackWalker::ShowObject(LPVOID pObject)
1288{
1289 // Load modules if not done yet
1290 if (m_modulesLoaded == FALSE)
1291 this->LoadModules(); // ignore the result...
1292
1293 // Verify that the DebugHelp.dll was actually found
1294 if (this->m_sw->m_hDbhHelp == NULL)
1295 {
1296 SetLastError(ERROR_DLL_INIT_FAILED);
1297 return FALSE;
1298 }
1299
1300 // SymGetSymFromAddr64() is required
1301 if (this->m_sw->pSGSFA == NULL)
1302 return FALSE;
1303
1304 // Show object info (SymGetSymFromAddr64())
1305 DWORD64 dwAddress = DWORD64(pObject);
1306 DWORD64 dwDisplacement = 0;
1307 IMAGEHLP_SYMBOL64* pSym =
1308 (IMAGEHLP_SYMBOL64*)malloc(sizeof(IMAGEHLP_SYMBOL64) + STACKWALK_MAX_NAMELEN);
1309 memset(pSym, 0, sizeof(IMAGEHLP_SYMBOL64) + STACKWALK_MAX_NAMELEN);
1310 pSym->SizeOfStruct = sizeof(IMAGEHLP_SYMBOL64);
1311 pSym->MaxNameLength = STACKWALK_MAX_NAMELEN;
1312 if (this->m_sw->pSGSFA(this->m_hProcess, dwAddress, &dwDisplacement, pSym) == FALSE)
1313 {
1314 this->OnDbgHelpErr("SymGetSymFromAddr64", GetLastError(), dwAddress);
1315 return FALSE;
1316 }
1317 // Object name output
1318 this->OnOutput(pSym->Name);
1319
1320 free(pSym);
1321 return TRUE;
1322};
1323
1324BOOL __stdcall StackWalker::myReadProcMem(HANDLE hProcess,
1325 DWORD64 qwBaseAddress,
1326 PVOID lpBuffer,
1327 DWORD nSize,
1328 LPDWORD lpNumberOfBytesRead)
1329{
1330 if (s_readMemoryFunction == NULL)
1331 {
1332 SIZE_T st;
1333 BOOL bRet = ReadProcessMemory(hProcess, (LPVOID)qwBaseAddress, lpBuffer, nSize, &st);
1334 *lpNumberOfBytesRead = (DWORD)st;
1335 //printf("ReadMemory: hProcess: %p, baseAddr: %p, buffer: %p, size: %d, read: %d, result: %d\n", hProcess, (LPVOID) qwBaseAddress, lpBuffer, nSize, (DWORD) st, (DWORD) bRet);
1336 return bRet;
1337 }
1338 else
1339 {
1340 return s_readMemoryFunction(hProcess, qwBaseAddress, lpBuffer, nSize, lpNumberOfBytesRead,
1341 s_readMemoryFunction_UserData);
1342 }
1343}
1344
1345void StackWalker::OnLoadModule(LPCSTR img,
1346 LPCSTR mod,
1347 DWORD64 baseAddr,
1348 DWORD size,
1349 DWORD result,
1350 LPCSTR symType,
1351 LPCSTR pdbName,
1352 ULONGLONG fileVersion)
1353{
1354 CHAR buffer[STACKWALK_MAX_NAMELEN];
1355 size_t maxLen = STACKWALK_MAX_NAMELEN;
1356#if _MSC_VER >= 1400
1357 maxLen = _TRUNCATE;
1358#endif
1359 if (fileVersion == 0)
1360 _snprintf_s(buffer, maxLen, "%s:%s (%p), size: %d (result: %d), SymType: '%s', PDB: '%s'\n",
1361 img, mod, (LPVOID)baseAddr, size, result, symType, pdbName);
1362 else
1363 {
1364 DWORD v4 = (DWORD)(fileVersion & 0xFFFF);
1365 DWORD v3 = (DWORD)((fileVersion >> 16) & 0xFFFF);
1366 DWORD v2 = (DWORD)((fileVersion >> 32) & 0xFFFF);
1367 DWORD v1 = (DWORD)((fileVersion >> 48) & 0xFFFF);
1368 _snprintf_s(
1369 buffer, maxLen,
1370 "%s:%s (%p), size: %d (result: %d), SymType: '%s', PDB: '%s', fileVersion: %d.%d.%d.%d\n",
1371 img, mod, (LPVOID)baseAddr, size, result, symType, pdbName, v1, v2, v3, v4);
1372 }
1373 buffer[STACKWALK_MAX_NAMELEN - 1] = 0; // be sure it is NULL terminated
1374 OnOutput(buffer);
1375}
1376
1377void StackWalker::OnCallstackEntry(CallstackEntryType eType, CallstackEntry& entry)
1378{
1379 CHAR buffer[STACKWALK_MAX_NAMELEN];
1380 size_t maxLen = STACKWALK_MAX_NAMELEN;
1381#if _MSC_VER >= 1400
1382 maxLen = _TRUNCATE;
1383#endif
1384 if ((eType != lastEntry) && (entry.offset != 0))
1385 {
1386 if (entry.name[0] == 0)
1387 MyStrCpy(entry.name, STACKWALK_MAX_NAMELEN, "(function-name not available)");
1388 if (entry.undName[0] != 0)
1389 MyStrCpy(entry.name, STACKWALK_MAX_NAMELEN, entry.undName);
1390 if (entry.undFullName[0] != 0)
1391 MyStrCpy(entry.name, STACKWALK_MAX_NAMELEN, entry.undFullName);
1392 if (entry.lineFileName[0] == 0)
1393 {
1394 MyStrCpy(entry.lineFileName, STACKWALK_MAX_NAMELEN, "(filename not available)");
1395 if (entry.moduleName[0] == 0)
1396 MyStrCpy(entry.moduleName, STACKWALK_MAX_NAMELEN, "(module-name not available)");
1397 _snprintf_s(buffer, maxLen, "%p (%s): %s: %s\n", (LPVOID)entry.offset, entry.moduleName,
1398 entry.lineFileName, entry.name);
1399 }
1400 else
1401 _snprintf_s(buffer, maxLen, "%s (%d): %s\n", entry.lineFileName, entry.lineNumber,
1402 entry.name);
1403 buffer[STACKWALK_MAX_NAMELEN - 1] = 0;
1404 OnOutput(buffer);
1405 }
1406}
1407
1408void StackWalker::OnDbgHelpErr(LPCSTR szFuncName, DWORD gle, DWORD64 addr)
1409{
1410 CHAR buffer[STACKWALK_MAX_NAMELEN];
1411 size_t maxLen = STACKWALK_MAX_NAMELEN;
1412#if _MSC_VER >= 1400
1413 maxLen = _TRUNCATE;
1414#endif
1415 _snprintf_s(buffer, maxLen, "ERROR: %s, GetLastError: %d (Address: %p)\n", szFuncName, gle,
1416 (LPVOID)addr);
1417 buffer[STACKWALK_MAX_NAMELEN - 1] = 0;
1418 OnOutput(buffer);
1419}
1420
1421void StackWalker::OnSymInit(LPCSTR szSearchPath, DWORD symOptions, LPCSTR szUserName)
1422{
1423 CHAR buffer[STACKWALK_MAX_NAMELEN];
1424 size_t maxLen = STACKWALK_MAX_NAMELEN;
1425#if _MSC_VER >= 1400
1426 maxLen = _TRUNCATE;
1427#endif
1428 _snprintf_s(buffer, maxLen, "SymInit: Symbol-SearchPath: '%s', symOptions: %d, UserName: '%s'\n",
1429 szSearchPath, symOptions, szUserName);
1430 buffer[STACKWALK_MAX_NAMELEN - 1] = 0;
1431 OnOutput(buffer);
1432 // Also display the OS-version
1433#if _MSC_VER <= 1200
1434 OSVERSIONINFOA ver;
1435 ZeroMemory(&ver, sizeof(OSVERSIONINFOA));
1436 ver.dwOSVersionInfoSize = sizeof(ver);
1437 if (GetVersionExA(&ver) != FALSE)
1438 {
1439 _snprintf_s(buffer, maxLen, "OS-Version: %d.%d.%d (%s)\n", ver.dwMajorVersion,
1440 ver.dwMinorVersion, ver.dwBuildNumber, ver.szCSDVersion);
1441 buffer[STACKWALK_MAX_NAMELEN - 1] = 0;
1442 OnOutput(buffer);
1443 }
1444#else
1445 OSVERSIONINFOEXA ver;
1446 ZeroMemory(&ver, sizeof(OSVERSIONINFOEXA));
1447 ver.dwOSVersionInfoSize = sizeof(ver);
1448#if _MSC_VER >= 1900
1449#pragma warning(push)
1450#pragma warning(disable : 4996)
1451#endif
1452 if (GetVersionExA((OSVERSIONINFOA*)&ver) != FALSE)
1453 {
1454 _snprintf_s(buffer, maxLen, "OS-Version: %d.%d.%d (%s) 0x%x-0x%x\n", ver.dwMajorVersion,
1455 ver.dwMinorVersion, ver.dwBuildNumber, ver.szCSDVersion, ver.wSuiteMask,
1456 ver.wProductType);
1457 buffer[STACKWALK_MAX_NAMELEN - 1] = 0;
1458 OnOutput(buffer);
1459 }
1460#if _MSC_VER >= 1900
1461#pragma warning(pop)
1462#endif
1463#endif
1464}
1465
1466void StackWalker::OnOutput(LPCSTR buffer)
1467{
1468 OutputDebugStringA(buffer);
1469}
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