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authorMattes D <github@xoft.cz>2017-06-19 11:05:19 +0200
committerGitHub <noreply@github.com>2017-06-19 11:05:19 +0200
commit7ac3b0fa0b22cb531667995099afd5eea8607884 (patch)
tree79634067fdfd779cf8a5409d9f04279ee7cfdb93 /src/OSSupport/WinStackWalker.cpp
parentNetworkSingleton: Fixed an object leak upon termination. (diff)
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Diffstat (limited to '')
-rw-r--r--src/OSSupport/WinStackWalker.cpp1257
1 files changed, 1257 insertions, 0 deletions
diff --git a/src/OSSupport/WinStackWalker.cpp b/src/OSSupport/WinStackWalker.cpp
new file mode 100644
index 000000000..6d732bd61
--- /dev/null
+++ b/src/OSSupport/WinStackWalker.cpp
@@ -0,0 +1,1257 @@
+// WinStackWalker.cpp
+
+// Implements the stack walking for Windows binaries
+
+
+
+/*
+LICENSE (http://www.opensource.org/licenses/bsd-license.php)
+
+Copyright (c) 2005-2010, Jochen Kalmbach
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without modification,
+are permitted provided that the following conditions are met:
+
+Redistributions of source code must retain the above copyright notice,
+this list of conditions and the following disclaimer.
+Redistributions in binary form must reproduce the above copyright notice,
+this list of conditions and the following disclaimer in the documentation
+and / or other materials provided with the distribution.
+Neither the name of Jochen Kalmbach nor the names of its contributors may be
+used to endorse or promote products derived from this software without
+specific prior written permission.
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+
+NOTE: 2017-06-16 madmaxoft: Removed the legacy VS code and generally cleaned up
+*/
+
+
+
+
+
+#include "Globals.h"
+
+#ifdef _WIN32
+
+#include <tchar.h>
+#pragma comment(lib, "version.lib") // for "VerQueryValue"
+#pragma warning(disable:4826)
+#pragma warning(disable:4996) // "GetVersionEx" was declared deprecated
+
+#include "WinStackWalker.h"
+
+
+#pragma pack(push, 8)
+ #include <dbghelp.h>
+#pragma pack(pop)
+
+
+
+
+
+// Copy szSrc to szDest, but at most nMaxDestSize bytes. Always NUL-terminate
+template<size_t COUNT>
+static void MyStrCpy(CHAR (&szDest)[COUNT], const CHAR * szSrc)
+{
+ auto len = strlen(szSrc);
+ if (len < COUNT)
+ {
+ memcpy(szDest, szSrc, len + 1);
+ }
+ else
+ {
+ memcpy(szDest, szSrc, COUNT - 1);
+ szDest[COUNT - 1] = 0;
+ }
+}
+
+
+
+
+
+// Normally it should be enough to use 'CONTEXT_FULL' (better would be 'CONTEXT_ALL')
+#define USED_CONTEXT_FLAGS CONTEXT_FULL
+
+
+
+
+
+class StackWalkerInternal
+{
+public:
+ StackWalkerInternal(WinStackWalker * parent, HANDLE hProcess)
+ {
+ m_parent = parent;
+ m_hDbhHelp = nullptr;
+ pSC = nullptr;
+ m_hProcess = hProcess;
+ m_szSymPath = nullptr;
+ pSFTA = nullptr;
+ pSGLFA = nullptr;
+ pSGMB = nullptr;
+ pSGMI = nullptr;
+ pSGO = nullptr;
+ pSGSFA = nullptr;
+ pSI = nullptr;
+ pSLM = nullptr;
+ pSSO = nullptr;
+ pSW = nullptr;
+ pUDSN = nullptr;
+ pSGSP = nullptr;
+ }
+
+
+ ~StackWalkerInternal()
+ {
+ if (pSC != nullptr)
+ {
+ pSC(m_hProcess); // SymCleanup
+ }
+ if (m_hDbhHelp != nullptr)
+ {
+ FreeLibrary(m_hDbhHelp);
+ }
+ m_hDbhHelp = nullptr;
+ m_parent = nullptr;
+ if (m_szSymPath != nullptr)
+ {
+ free(m_szSymPath);
+ }
+ m_szSymPath = nullptr;
+ }
+
+
+ BOOL Init(LPCSTR szSymPath)
+ {
+ if (m_parent == nullptr)
+ {
+ return FALSE;
+ }
+ // Dynamically load the Entry-Points for dbghelp.dll:
+ // First try to load the newsest one from
+ TCHAR szTemp[4096];
+ // But before wqe do this, we first check if the ".local" file exists
+ if (GetModuleFileName(nullptr, szTemp, sizeof(szTemp)) > 0)
+ {
+ _tcscat_s(szTemp, _T(".local"));
+ if (GetFileAttributes(szTemp) == INVALID_FILE_ATTRIBUTES)
+ {
+ // ".local" file does not exist, so we can try to load the dbghelp.dll from the "Debugging Tools for Windows"
+ // Ok, first try the new path according to the archtitecture:
+ #ifdef _M_IX86
+ if ((m_hDbhHelp == nullptr) && (GetEnvironmentVariable(_T("ProgramFiles"), szTemp, ARRAYCOUNT(szTemp)) > 0))
+ {
+ _tcscat_s(szTemp, _T("\\Debugging Tools for Windows (x86)\\dbghelp.dll"));
+ // now check if the file exists:
+ if (GetFileAttributes(szTemp) != INVALID_FILE_ATTRIBUTES)
+ {
+ m_hDbhHelp = LoadLibrary(szTemp);
+ }
+ }
+ #elif _M_X64
+ if ((m_hDbhHelp == nullptr) && (GetEnvironmentVariable(_T("ProgramFiles"), szTemp, ARRAYCOUNT(szTemp)) > 0))
+ {
+ _tcscat_s(szTemp, _T("\\Debugging Tools for Windows (x64)\\dbghelp.dll"));
+ // now check if the file exists:
+ if (GetFileAttributes(szTemp) != INVALID_FILE_ATTRIBUTES)
+ {
+ m_hDbhHelp = LoadLibrary(szTemp);
+ }
+ }
+ #elif _M_IA64
+ if ((m_hDbhHelp == nullptr) && (GetEnvironmentVariable(_T("ProgramFiles"), szTemp, ARRAYCOUNT(szTemp)) > 0))
+ {
+ _tcscat_s(szTemp, _T("\\Debugging Tools for Windows (ia64)\\dbghelp.dll"));
+ // now check if the file exists:
+ if (GetFileAttributes(szTemp) != INVALID_FILE_ATTRIBUTES)
+ {
+ m_hDbhHelp = LoadLibrary(szTemp);
+ }
+ }
+ #endif
+ // If still not found, try the old directories...
+ if ((m_hDbhHelp == nullptr) && (GetEnvironmentVariable(_T("ProgramFiles"), szTemp, ARRAYCOUNT(szTemp)) > 0))
+ {
+ _tcscat_s(szTemp, _T("\\Debugging Tools for Windows\\dbghelp.dll"));
+ // now check if the file exists:
+ if (GetFileAttributes(szTemp) != INVALID_FILE_ATTRIBUTES)
+ {
+ m_hDbhHelp = LoadLibrary(szTemp);
+ }
+ }
+ #if defined _M_X64 || defined _M_IA64
+ // Still not found? Then try to load the (old) 64-Bit version:
+ if ((m_hDbhHelp == nullptr) && (GetEnvironmentVariable(_T("ProgramFiles"), szTemp, ARRAYCOUNT(szTemp)) > 0))
+ {
+ _tcscat_s(szTemp, _T("\\Debugging Tools for Windows 64-Bit\\dbghelp.dll"));
+ if (GetFileAttributes(szTemp) != INVALID_FILE_ATTRIBUTES)
+ {
+ m_hDbhHelp = LoadLibrary(szTemp);
+ }
+ }
+ #endif
+ }
+ }
+ if (m_hDbhHelp == nullptr) // if not already loaded, try to load a default-one
+ {
+ m_hDbhHelp = LoadLibrary(_T("dbghelp.dll"));
+ }
+ if (m_hDbhHelp == nullptr)
+ {
+ return FALSE;
+ }
+ pSI = (tSI)GetProcAddress(m_hDbhHelp, "SymInitialize");
+ pSC = (tSC)GetProcAddress(m_hDbhHelp, "SymCleanup");
+
+ pSW = (tSW)GetProcAddress(m_hDbhHelp, "StackWalk64");
+ pSGO = (tSGO)GetProcAddress(m_hDbhHelp, "SymGetOptions");
+ pSSO = (tSSO)GetProcAddress(m_hDbhHelp, "SymSetOptions");
+
+ pSFTA = (tSFTA)GetProcAddress(m_hDbhHelp, "SymFunctionTableAccess64");
+ pSGLFA = (tSGLFA)GetProcAddress(m_hDbhHelp, "SymGetLineFromAddr64");
+ pSGMB = (tSGMB)GetProcAddress(m_hDbhHelp, "SymGetModuleBase64");
+ pSGMI = (tSGMI)GetProcAddress(m_hDbhHelp, "SymGetModuleInfo64");
+ // pSGMI_V3 = (tSGMI_V3) GetProcAddress(m_hDbhHelp, "SymGetModuleInfo64");
+ pSGSFA = (tSGSFA)GetProcAddress(m_hDbhHelp, "SymGetSymFromAddr64");
+ pUDSN = (tUDSN)GetProcAddress(m_hDbhHelp, "UnDecorateSymbolName");
+ pSLM = (tSLM)GetProcAddress(m_hDbhHelp, "SymLoadModule64");
+ pSGSP = (tSGSP)GetProcAddress(m_hDbhHelp, "SymGetSearchPath");
+
+ if (
+ (pSC == nullptr) || (pSFTA == nullptr) || (pSGMB == nullptr) || (pSGMI == nullptr) ||
+ (pSGO == nullptr) || (pSGSFA == nullptr) || (pSI == nullptr) || (pSSO == nullptr) ||
+ (pSW == nullptr) || (pUDSN == nullptr) || (pSLM == nullptr)
+ )
+ {
+ FreeLibrary(m_hDbhHelp);
+ m_hDbhHelp = nullptr;
+ pSC = nullptr;
+ return FALSE;
+ }
+
+ // SymInitialize
+ if (szSymPath != nullptr)
+ {
+ m_szSymPath = _strdup(szSymPath);
+ }
+ if (this->pSI(m_hProcess, m_szSymPath, FALSE) == FALSE)
+ {
+ this->m_parent->OnDbgHelpErr("SymInitialize", GetLastError(), 0);
+ }
+
+ DWORD symOptions = this->pSGO(); // SymGetOptions
+ symOptions |= SYMOPT_LOAD_LINES;
+ symOptions |= SYMOPT_FAIL_CRITICAL_ERRORS;
+ symOptions = this->pSSO(symOptions);
+
+ char buf[WinStackWalker::STACKWALK_MAX_NAMELEN] = { 0 };
+ if (this->pSGSP != nullptr)
+ {
+ if (this->pSGSP(m_hProcess, buf, static_cast<DWORD>(sizeof(buf))) == FALSE)
+ {
+ this->m_parent->OnDbgHelpErr("SymGetSearchPath", GetLastError(), 0);
+ }
+ }
+ char szUserName[1024] = { 0 };
+ DWORD dwSize = static_cast<DWORD>(sizeof(szUserName));
+ GetUserNameA(szUserName, &dwSize);
+ this->m_parent->OnSymInit(buf, symOptions, szUserName);
+
+ return TRUE;
+ }
+
+
+
+
+
+ WinStackWalker * m_parent;
+
+ HMODULE m_hDbhHelp;
+ HANDLE m_hProcess;
+ LPSTR m_szSymPath;
+
+ #pragma pack(push, 8)
+ struct IMAGEHLP_MODULE64_V2
+ {
+ DWORD SizeOfStruct; // set to sizeof(IMAGEHLP_MODULE64)
+ DWORD64 BaseOfImage; // base load address of module
+ DWORD ImageSize; // virtual size of the loaded module
+ DWORD TimeDateStamp; // date / time stamp from pe header
+ DWORD CheckSum; // checksum from the pe header
+ DWORD NumSyms; // number of symbols in the symbol table
+ SYM_TYPE SymType; // type of symbols loaded
+ CHAR ModuleName[32]; // module name
+ CHAR ImageName[256]; // image name
+ CHAR LoadedImageName[256]; // symbol file name
+ };
+ #pragma pack(pop)
+
+
+ // SymCleanup()
+ typedef BOOL(__stdcall *tSC)(IN HANDLE hProcess);
+ tSC pSC;
+
+ // SymFunctionTableAccess64()
+ typedef PVOID(__stdcall *tSFTA)(HANDLE hProcess, DWORD64 AddrBase);
+ tSFTA pSFTA;
+
+ // SymGetLineFromAddr64()
+ typedef BOOL(__stdcall *tSGLFA)(IN HANDLE hProcess, IN DWORD64 dwAddr, OUT PDWORD pdwDisplacement, OUT PIMAGEHLP_LINE64 Line);
+ tSGLFA pSGLFA;
+
+ // SymGetModuleBase64()
+ typedef DWORD64(__stdcall *tSGMB)(IN HANDLE hProcess, IN DWORD64 dwAddr);
+ tSGMB pSGMB;
+
+ // SymGetModuleInfo64()
+ typedef BOOL(__stdcall *tSGMI)(IN HANDLE hProcess, IN DWORD64 dwAddr, OUT IMAGEHLP_MODULE64_V2 *ModuleInfo);
+ tSGMI pSGMI;
+
+ // // SymGetModuleInfo64()
+ // typedef BOOL (__stdcall *tSGMI_V3)( IN HANDLE hProcess, IN DWORD64 dwAddr, OUT IMAGEHLP_MODULE64_V3 *ModuleInfo);
+ // tSGMI_V3 pSGMI_V3;
+
+ // SymGetOptions()
+ typedef DWORD(__stdcall *tSGO)(VOID);
+ tSGO pSGO;
+
+ // SymGetSymFromAddr64()
+ typedef BOOL(__stdcall *tSGSFA)(IN HANDLE hProcess, IN DWORD64 dwAddr, OUT PDWORD64 pdwDisplacement, OUT PIMAGEHLP_SYMBOL64 Symbol);
+ tSGSFA pSGSFA;
+
+ // SymInitialize()
+ typedef BOOL(__stdcall *tSI)(IN HANDLE hProcess, IN PSTR UserSearchPath, IN BOOL fInvadeProcess);
+ tSI pSI;
+
+ // SymLoadModule64()
+ typedef DWORD64(__stdcall *tSLM)(IN HANDLE hProcess, IN HANDLE hFile, IN PSTR ImageName, IN PSTR ModuleName, IN DWORD64 BaseOfDll, IN DWORD SizeOfDll);
+ tSLM pSLM;
+
+ // SymSetOptions()
+ typedef DWORD(__stdcall *tSSO)(IN DWORD SymOptions);
+ tSSO pSSO;
+
+ // StackWalk64()
+ typedef BOOL(__stdcall *tSW)(
+ DWORD MachineType,
+ HANDLE hProcess,
+ HANDLE hThread,
+ LPSTACKFRAME64 StackFrame,
+ PVOID ContextRecord,
+ PREAD_PROCESS_MEMORY_ROUTINE64 ReadMemoryRoutine,
+ PFUNCTION_TABLE_ACCESS_ROUTINE64 FunctionTableAccessRoutine,
+ PGET_MODULE_BASE_ROUTINE64 GetModuleBaseRoutine,
+ PTRANSLATE_ADDRESS_ROUTINE64 TranslateAddress);
+ tSW pSW;
+
+ // UnDecorateSymbolName()
+ typedef DWORD(__stdcall WINAPI *tUDSN)(PCSTR DecoratedName, PSTR UnDecoratedName, DWORD UndecoratedLength, DWORD Flags);
+ tUDSN pUDSN;
+
+ typedef BOOL(__stdcall WINAPI *tSGSP)(HANDLE hProcess, PSTR SearchPath, DWORD SearchPathLength);
+ tSGSP pSGSP;
+
+
+private:
+ // **************************************** ToolHelp32 ************************
+ #define MAX_MODULE_NAME32 255
+ #define TH32CS_SNAPMODULE 0x00000008
+
+ #pragma pack(push, 8)
+ typedef struct tagMODULEENTRY32
+ {
+ DWORD dwSize;
+ DWORD th32ModuleID; // This module
+ DWORD th32ProcessID; // owning process
+ DWORD GlblcntUsage; // Global usage count on the module
+ DWORD ProccntUsage; // Module usage count in th32ProcessID's context
+ BYTE * modBaseAddr; // Base address of module in th32ProcessID's context
+ DWORD modBaseSize; // Size in bytes of module starting at modBaseAddr
+ HMODULE hModule; // The hModule of this module in th32ProcessID's context
+ char szModule[MAX_MODULE_NAME32 + 1];
+ char szExePath[MAX_PATH];
+ } MODULEENTRY32;
+ typedef MODULEENTRY32 * PMODULEENTRY32;
+ typedef MODULEENTRY32 * LPMODULEENTRY32;
+ #pragma pack(pop)
+
+ BOOL GetModuleListTH32(HANDLE hProcess, DWORD pid)
+ {
+ // CreateToolhelp32Snapshot()
+ typedef HANDLE(__stdcall *tCT32S)(DWORD dwFlags, DWORD th32ProcessID);
+ // Module32First()
+ typedef BOOL(__stdcall *tM32F)(HANDLE hSnapshot, LPMODULEENTRY32 lpme);
+ // Module32Next()
+ typedef BOOL(__stdcall *tM32N)(HANDLE hSnapshot, LPMODULEENTRY32 lpme);
+
+ // try both dlls...
+ const TCHAR *dllname[] = { _T("kernel32.dll"), _T("tlhelp32.dll") };
+ HINSTANCE hToolhelp = nullptr;
+ tCT32S pCT32S = nullptr;
+ tM32F pM32F = nullptr;
+ tM32N pM32N = nullptr;
+
+ HANDLE hSnap;
+ MODULEENTRY32 me;
+ me.dwSize = sizeof(me);
+ BOOL keepGoing;
+
+ for (size_t i = 0; i < ARRAYCOUNT(dllname); i++)
+ {
+ hToolhelp = LoadLibrary(dllname[i]);
+ if (hToolhelp == nullptr)
+ {
+ continue;
+ }
+ pCT32S = (tCT32S)GetProcAddress(hToolhelp, "CreateToolhelp32Snapshot");
+ pM32F = (tM32F)GetProcAddress(hToolhelp, "Module32First");
+ pM32N = (tM32N)GetProcAddress(hToolhelp, "Module32Next");
+ if ((pCT32S != nullptr) && (pM32F != nullptr) && (pM32N != nullptr))
+ {
+ break; // found the functions!
+ }
+ FreeLibrary(hToolhelp);
+ hToolhelp = nullptr;
+ }
+
+ if (hToolhelp == nullptr)
+ {
+ return FALSE;
+ }
+
+ hSnap = pCT32S(TH32CS_SNAPMODULE, pid);
+ if (hSnap == (HANDLE)-1)
+ {
+ FreeLibrary(hToolhelp);
+ return FALSE;
+ }
+
+ keepGoing = !!pM32F(hSnap, &me);
+ int cnt = 0;
+ while (keepGoing)
+ {
+ this->LoadModule(hProcess, me.szExePath, me.szModule, (DWORD64)me.modBaseAddr, me.modBaseSize);
+ cnt++;
+ keepGoing = !!pM32N(hSnap, &me);
+ }
+ CloseHandle(hSnap);
+ FreeLibrary(hToolhelp);
+ if (cnt <= 0)
+ {
+ return FALSE;
+ }
+ return TRUE;
+ } // GetModuleListTH32
+
+
+
+
+
+ // **************************************** PSAPI ************************
+ typedef struct _MODULEINFO
+ {
+ LPVOID lpBaseOfDll;
+ DWORD SizeOfImage;
+ LPVOID EntryPoint;
+ } MODULEINFO, *LPMODULEINFO;
+
+ BOOL GetModuleListPSAPI(HANDLE hProcess)
+ {
+ // EnumProcessModules()
+ typedef BOOL(__stdcall *tEPM)(HANDLE hProcess, HMODULE *lphModule, DWORD cb, LPDWORD lpcbNeeded);
+ // GetModuleFileNameEx()
+ typedef DWORD(__stdcall *tGMFNE)(HANDLE hProcess, HMODULE hModule, LPSTR lpFilename, DWORD nSize);
+ // GetModuleBaseName()
+ typedef DWORD(__stdcall *tGMBN)(HANDLE hProcess, HMODULE hModule, LPSTR lpFilename, DWORD nSize);
+ // GetModuleInformation()
+ typedef BOOL(__stdcall *tGMI)(HANDLE hProcess, HMODULE hModule, LPMODULEINFO pmi, DWORD nSize);
+
+ HINSTANCE hPsapi;
+ tEPM pEPM;
+ tGMFNE pGMFNE;
+ tGMBN pGMBN;
+ tGMI pGMI;
+
+ DWORD i;
+ DWORD cbNeeded;
+ MODULEINFO mi;
+ HMODULE *hMods = 0;
+ char *tt = nullptr;
+ char *tt2 = nullptr;
+ const SIZE_T TTBUFLEN = 8096;
+ int cnt = 0;
+
+ hPsapi = LoadLibrary(_T("psapi.dll"));
+ if (hPsapi == nullptr)
+ {
+ return FALSE;
+ }
+
+ pEPM = (tEPM)GetProcAddress(hPsapi, "EnumProcessModules");
+ pGMFNE = (tGMFNE)GetProcAddress(hPsapi, "GetModuleFileNameExA");
+ pGMBN = (tGMFNE)GetProcAddress(hPsapi, "GetModuleBaseNameA");
+ pGMI = (tGMI)GetProcAddress(hPsapi, "GetModuleInformation");
+ if ((pEPM == nullptr) || (pGMFNE == nullptr) || (pGMBN == nullptr) || (pGMI == nullptr))
+ {
+ // we couldnīt find all functions
+ FreeLibrary(hPsapi);
+ return FALSE;
+ }
+
+ hMods = (HMODULE*)malloc(sizeof(HMODULE) * (TTBUFLEN / sizeof HMODULE));
+ tt = (char*)malloc(sizeof(char) * TTBUFLEN);
+ tt2 = (char*)malloc(sizeof(char) * TTBUFLEN);
+ if ((hMods == nullptr) || (tt == nullptr) || (tt2 == nullptr))
+ {
+ goto cleanup;
+ }
+
+ if (!pEPM(hProcess, hMods, TTBUFLEN, &cbNeeded))
+ {
+ goto cleanup;
+ }
+
+ if (cbNeeded > TTBUFLEN)
+ {
+ goto cleanup;
+ }
+
+ for (i = 0; i < cbNeeded / sizeof hMods[0]; i++)
+ {
+ // base address, size
+ pGMI(hProcess, hMods[i], &mi, sizeof mi);
+ // image file name
+ tt[0] = 0;
+ pGMFNE(hProcess, hMods[i], tt, TTBUFLEN);
+ // module name
+ tt2[0] = 0;
+ pGMBN(hProcess, hMods[i], tt2, TTBUFLEN);
+
+ DWORD dwRes = this->LoadModule(hProcess, tt, tt2, (DWORD64)mi.lpBaseOfDll, mi.SizeOfImage);
+ if (dwRes != ERROR_SUCCESS)
+ {
+ this->m_parent->OnDbgHelpErr("LoadModule", dwRes, 0);
+ }
+ cnt++;
+ }
+
+ cleanup:
+ if (hPsapi != nullptr)
+ {
+ FreeLibrary(hPsapi);
+ }
+ if (tt2 != nullptr)
+ {
+ free(tt2);
+ }
+ if (tt != nullptr)
+ {
+ free(tt);
+ }
+ if (hMods != nullptr)
+ {
+ free(hMods);
+ }
+
+ return cnt != 0;
+ } // GetModuleListPSAPI
+
+
+
+
+
+ DWORD LoadModule(HANDLE hProcess, LPCSTR img, LPCSTR mod, DWORD64 baseAddr, DWORD size)
+ {
+ CHAR *szImg = _strdup(img);
+ CHAR *szMod = _strdup(mod);
+ DWORD result = ERROR_SUCCESS;
+ if ((szImg == nullptr) || (szMod == nullptr))
+ {
+ result = ERROR_NOT_ENOUGH_MEMORY;
+ }
+ else
+ {
+ if (pSLM(hProcess, 0, szImg, szMod, baseAddr, size) == 0)
+ {
+ result = GetLastError();
+ }
+ }
+ ULONGLONG fileVersion = 0;
+ if ((m_parent != nullptr) && (szImg != nullptr))
+ {
+ // try to retrive the file-version:
+ if ((this->m_parent->m_options & WinStackWalker::RetrieveFileVersion) != 0)
+ {
+ VS_FIXEDFILEINFO *fInfo = nullptr;
+ DWORD dwHandle;
+ DWORD dwSize = GetFileVersionInfoSizeA(szImg, &dwHandle);
+ if (dwSize > 0)
+ {
+ LPVOID vData = malloc(dwSize);
+ if (vData != nullptr)
+ {
+ if (GetFileVersionInfoA(szImg, dwHandle, dwSize, vData) != 0)
+ {
+ UINT len;
+ TCHAR szSubBlock[] = _T("\\");
+ if (VerQueryValue(vData, szSubBlock, (LPVOID*)&fInfo, &len) == 0)
+ {
+ fInfo = nullptr;
+ }
+ else
+ {
+ fileVersion = ((ULONGLONG)fInfo->dwFileVersionLS) + ((ULONGLONG)fInfo->dwFileVersionMS << 32);
+ }
+ }
+ free(vData);
+ }
+ }
+ }
+
+ // Retrive some additional-infos about the module
+ IMAGEHLP_MODULE64_V2 Module;
+ const char *szSymType = "-unknown-";
+ if (this->GetModuleInfo(hProcess, baseAddr, &Module) != FALSE)
+ {
+ switch (Module.SymType)
+ {
+ case SymNone: szSymType = "-nosymbols-"; break;
+ case SymCoff: szSymType = "COFF"; break;
+ case SymCv: szSymType = "CV"; break;
+ case SymPdb: szSymType = "PDB"; break;
+ case SymExport: szSymType = "-exported-"; break;
+ case SymDeferred: szSymType = "-deferred-"; break;
+ case SymSym: szSymType = "SYM"; break;
+ case 7: szSymType = "DIA"; break;
+ case 8: szSymType = "Virtual"; break;
+ }
+ }
+ this->m_parent->OnLoadModule(img, mod, baseAddr, size, result, szSymType, Module.LoadedImageName, fileVersion);
+ }
+ if (szImg != nullptr)
+ {
+ free(szImg);
+ }
+ if (szMod != nullptr)
+ {
+ free(szMod);
+ }
+ return result;
+ }
+
+
+
+
+
+public:
+ BOOL LoadModules(HANDLE hProcess, DWORD dwProcessId)
+ {
+ // first try toolhelp32
+ if (GetModuleListTH32(hProcess, dwProcessId))
+ {
+ return true;
+ }
+ // then try psapi
+ return GetModuleListPSAPI(hProcess);
+ }
+
+
+ BOOL GetModuleInfo(HANDLE hProcess, DWORD64 baseAddr, IMAGEHLP_MODULE64_V2 *pModuleInfo)
+ {
+ if (this->pSGMI == nullptr)
+ {
+ SetLastError(ERROR_DLL_INIT_FAILED);
+ return FALSE;
+ }
+ pModuleInfo->SizeOfStruct = sizeof(IMAGEHLP_MODULE64_V2);
+ void * pData = malloc(4096); // reserve enough memory, so the bug in v6.3.5.1 does not lead to memory-overwrites...
+ if (pData == nullptr)
+ {
+ SetLastError(ERROR_NOT_ENOUGH_MEMORY);
+ return FALSE;
+ }
+ memcpy(pData, pModuleInfo, sizeof(IMAGEHLP_MODULE64_V2));
+ if (this->pSGMI(hProcess, baseAddr, (IMAGEHLP_MODULE64_V2*)pData) != FALSE)
+ {
+ // only copy as much memory as is reserved...
+ memcpy(pModuleInfo, pData, sizeof(IMAGEHLP_MODULE64_V2));
+ pModuleInfo->SizeOfStruct = sizeof(IMAGEHLP_MODULE64_V2);
+ free(pData);
+ return TRUE;
+ }
+ free(pData);
+ SetLastError(ERROR_DLL_INIT_FAILED);
+ return FALSE;
+ }
+};
+
+
+
+
+
+// #############################################################
+WinStackWalker::WinStackWalker(DWORD dwProcessId, HANDLE hProcess)
+{
+ this->m_options = OptionsAll;
+ this->m_modulesLoaded = FALSE;
+ this->m_hProcess = hProcess;
+ this->m_sw = new StackWalkerInternal(this, this->m_hProcess);
+ this->m_dwProcessId = dwProcessId;
+ this->m_szSymPath = nullptr;
+ this->m_MaxRecursionCount = 1000;
+}
+
+
+
+
+WinStackWalker::WinStackWalker(int options, LPCSTR szSymPath, DWORD dwProcessId, HANDLE hProcess)
+{
+ this->m_options = options;
+ this->m_modulesLoaded = FALSE;
+ this->m_hProcess = hProcess;
+ this->m_sw = new StackWalkerInternal(this, this->m_hProcess);
+ this->m_dwProcessId = dwProcessId;
+ if (szSymPath != nullptr)
+ {
+ this->m_szSymPath = _strdup(szSymPath);
+ this->m_options |= SymBuildPath;
+ }
+ else
+ {
+ this->m_szSymPath = nullptr;
+ }
+ this->m_MaxRecursionCount = 1000;
+}
+
+
+
+
+
+WinStackWalker::~WinStackWalker()
+{
+ if (m_szSymPath != nullptr)
+ {
+ free(m_szSymPath);
+ }
+ m_szSymPath = nullptr;
+ if (this->m_sw != nullptr)
+ {
+ delete this->m_sw;
+ }
+ this->m_sw = nullptr;
+}
+
+
+
+
+
+BOOL WinStackWalker::LoadModules()
+{
+ if (this->m_sw == nullptr)
+ {
+ SetLastError(ERROR_DLL_INIT_FAILED);
+ return FALSE;
+ }
+ if (m_modulesLoaded != FALSE)
+ {
+ return TRUE;
+ }
+
+ // Build the sym-path:
+ char *szSymPath = nullptr;
+ if ((this->m_options & SymBuildPath) != 0)
+ {
+ const size_t nSymPathLen = 4096;
+ szSymPath = (char*)malloc(nSymPathLen);
+ if (szSymPath == nullptr)
+ {
+ SetLastError(ERROR_NOT_ENOUGH_MEMORY);
+ return FALSE;
+ }
+ szSymPath[0] = 0;
+ // Now first add the (optional) provided sympath:
+ if (this->m_szSymPath != nullptr)
+ {
+ strcat_s(szSymPath, nSymPathLen, this->m_szSymPath);
+ strcat_s(szSymPath, nSymPathLen, ";");
+ }
+
+ strcat_s(szSymPath, nSymPathLen, ".;");
+
+ const DWORD nTempLen = 1024;
+ char szTemp[nTempLen];
+ // Now add the current directory:
+ if (GetCurrentDirectoryA(nTempLen, szTemp) > 0)
+ {
+ szTemp[nTempLen - 1] = 0;
+ strcat_s(szSymPath, nSymPathLen, szTemp);
+ strcat_s(szSymPath, nSymPathLen, ";");
+ }
+
+ // Now add the path for the main-module:
+ if (GetModuleFileNameA(nullptr, szTemp, nTempLen) > 0)
+ {
+ szTemp[nTempLen - 1] = 0;
+ for (char *p = (szTemp + strlen(szTemp) - 1); p >= szTemp; --p)
+ {
+ // locate the rightmost path separator
+ if ((*p == '\\') || (*p == '/') || (*p == ':'))
+ {
+ *p = 0;
+ break;
+ }
+ } // for (search for path separator...)
+
+ if (szTemp[0] != '\0')
+ {
+ strcat_s(szSymPath, nSymPathLen, szTemp);
+ strcat_s(szSymPath, nSymPathLen, ";");
+ }
+ }
+ if (GetEnvironmentVariableA("_NT_SYMBOL_PATH", szTemp, nTempLen) > 0)
+ {
+ szTemp[nTempLen - 1] = 0;
+ strcat_s(szSymPath, nSymPathLen, szTemp);
+ strcat_s(szSymPath, nSymPathLen, ";");
+ }
+ if (GetEnvironmentVariableA("_NT_ALTERNATE_SYMBOL_PATH", szTemp, nTempLen) > 0)
+ {
+ szTemp[nTempLen - 1] = 0;
+ strcat_s(szSymPath, nSymPathLen, szTemp);
+ strcat_s(szSymPath, nSymPathLen, ";");
+ }
+ if (GetEnvironmentVariableA("SYSTEMROOT", szTemp, nTempLen) > 0)
+ {
+ szTemp[nTempLen - 1] = 0;
+ strcat_s(szSymPath, nSymPathLen, szTemp);
+ strcat_s(szSymPath, nSymPathLen, ";");
+ // also add the "system32"-directory:
+ strcat_s(szTemp, nTempLen, "\\system32");
+ strcat_s(szSymPath, nSymPathLen, szTemp);
+ strcat_s(szSymPath, nSymPathLen, ";");
+ }
+
+ if ((this->m_options & SymUseSymSrv) != 0)
+ {
+ if (GetEnvironmentVariableA("SYSTEMDRIVE", szTemp, nTempLen) > 0)
+ {
+ szTemp[nTempLen - 1] = 0;
+ strcat_s(szSymPath, nSymPathLen, "SRV*");
+ strcat_s(szSymPath, nSymPathLen, szTemp);
+ strcat_s(szSymPath, nSymPathLen, "\\websymbols");
+ strcat_s(szSymPath, nSymPathLen, "*http://msdl.microsoft.com/download/symbols;");
+ }
+ else
+ {
+ strcat_s(szSymPath, nSymPathLen, "SRV*c:\\websymbols*http://msdl.microsoft.com/download/symbols;");
+ }
+ }
+ } // if SymBuildPath
+
+ // First Init the whole stuff...
+ BOOL bRet = this->m_sw->Init(szSymPath);
+ if (szSymPath != nullptr)
+ {
+ free(szSymPath);
+ szSymPath = nullptr;
+ }
+ if (bRet == FALSE)
+ {
+ this->OnDbgHelpErr("Error while initializing dbghelp.dll", 0, 0);
+ SetLastError(ERROR_DLL_INIT_FAILED);
+ return FALSE;
+ }
+
+ bRet = this->m_sw->LoadModules(this->m_hProcess, this->m_dwProcessId);
+ if (bRet != FALSE)
+ {
+ m_modulesLoaded = TRUE;
+ }
+ return bRet;
+}
+
+
+
+
+
+// The following is used to pass the "userData"-Pointer to the user-provided readMemoryFunction
+// This has to be done due to a problem with the "hProcess"-parameter in x64
+// Because this class is in no case multi-threading-enabled (because of the limitations
+// of dbghelp.dll) it is "safe" to use a static-variable
+static WinStackWalker::PReadProcessMemoryRoutine s_readMemoryFunction = nullptr;
+static LPVOID s_readMemoryFunction_UserData = nullptr;
+
+BOOL WinStackWalker::ShowCallstack(HANDLE hThread, const CONTEXT *context, PReadProcessMemoryRoutine readMemoryFunction, LPVOID pUserData)
+{
+ CONTEXT c;
+ CallstackEntry csEntry;
+ IMAGEHLP_SYMBOL64 *pSym = nullptr;
+ StackWalkerInternal::IMAGEHLP_MODULE64_V2 Module;
+ IMAGEHLP_LINE64 Line;
+ int frameNum;
+ bool bLastEntryCalled = true;
+ int curRecursionCount = 0;
+
+ if (!m_modulesLoaded)
+ {
+ this->LoadModules(); // ignore the result...
+ }
+
+ if (this->m_sw->m_hDbhHelp == nullptr)
+ {
+ SetLastError(ERROR_DLL_INIT_FAILED);
+ return FALSE;
+ }
+
+ s_readMemoryFunction = readMemoryFunction;
+ s_readMemoryFunction_UserData = pUserData;
+
+ if (context == nullptr)
+ {
+ // If no context is provided, capture the context
+ if (hThread == GetCurrentThread())
+ {
+ GET_CURRENT_CONTEXT(c, USED_CONTEXT_FLAGS);
+ }
+ else
+ {
+ SuspendThread(hThread);
+ memset(&c, 0, sizeof(CONTEXT));
+ c.ContextFlags = USED_CONTEXT_FLAGS;
+ if (GetThreadContext(hThread, &c) == FALSE)
+ {
+ ResumeThread(hThread);
+ return FALSE;
+ }
+ }
+ }
+ else
+ {
+ c = *context;
+ }
+
+ // init STACKFRAME for first call
+ STACKFRAME64 s; // in / out stackframe
+ memset(&s, 0, sizeof(s));
+ DWORD imageType;
+ #ifdef _M_IX86
+ // normally, call ImageNtHeader() and use machine info from PE header
+ imageType = IMAGE_FILE_MACHINE_I386;
+ s.AddrPC.Offset = c.Eip;
+ s.AddrPC.Mode = AddrModeFlat;
+ s.AddrFrame.Offset = c.Ebp;
+ s.AddrFrame.Mode = AddrModeFlat;
+ s.AddrStack.Offset = c.Esp;
+ s.AddrStack.Mode = AddrModeFlat;
+ #elif _M_X64
+ imageType = IMAGE_FILE_MACHINE_AMD64;
+ s.AddrPC.Offset = c.Rip;
+ s.AddrPC.Mode = AddrModeFlat;
+ s.AddrFrame.Offset = c.Rsp;
+ s.AddrFrame.Mode = AddrModeFlat;
+ s.AddrStack.Offset = c.Rsp;
+ s.AddrStack.Mode = AddrModeFlat;
+ #elif _M_IA64
+ imageType = IMAGE_FILE_MACHINE_IA64;
+ s.AddrPC.Offset = c.StIIP;
+ s.AddrPC.Mode = AddrModeFlat;
+ s.AddrFrame.Offset = c.IntSp;
+ s.AddrFrame.Mode = AddrModeFlat;
+ s.AddrBStore.Offset = c.RsBSP;
+ s.AddrBStore.Mode = AddrModeFlat;
+ s.AddrStack.Offset = c.IntSp;
+ s.AddrStack.Mode = AddrModeFlat;
+ #else
+ #error "Platform not supported!"
+ #endif
+
+ pSym = (IMAGEHLP_SYMBOL64 *)malloc(sizeof(IMAGEHLP_SYMBOL64) + STACKWALK_MAX_NAMELEN);
+ if (!pSym)
+ {
+ goto cleanup; // not enough memory...
+ }
+ memset(pSym, 0, sizeof(IMAGEHLP_SYMBOL64) + STACKWALK_MAX_NAMELEN);
+ pSym->SizeOfStruct = sizeof(IMAGEHLP_SYMBOL64);
+ pSym->MaxNameLength = STACKWALK_MAX_NAMELEN;
+
+ memset(&Line, 0, sizeof(Line));
+ Line.SizeOfStruct = sizeof(Line);
+
+ memset(&Module, 0, sizeof(Module));
+ Module.SizeOfStruct = sizeof(Module);
+
+ for (frameNum = 0; ; ++frameNum)
+ {
+ // get next stack frame (StackWalk64(), SymFunctionTableAccess64(), SymGetModuleBase64())
+ // if this returns ERROR_INVALID_ADDRESS (487) or ERROR_NOACCESS (998), you can
+ // assume that either you are done, or that the stack is so hosed that the next
+ // deeper frame could not be found.
+ // CONTEXT need not to be suplied if imageTyp is IMAGE_FILE_MACHINE_I386!
+ if (!this->m_sw->pSW(imageType, this->m_hProcess, hThread, &s, &c, myReadProcMem, this->m_sw->pSFTA, this->m_sw->pSGMB, nullptr))
+ {
+ // INFO: "StackWalk64" does not set "GetLastError"...
+ this->OnDbgHelpErr("StackWalk64", 0, s.AddrPC.Offset);
+ break;
+ }
+
+ csEntry.offset = s.AddrPC.Offset;
+ csEntry.name[0] = 0;
+ csEntry.undName[0] = 0;
+ csEntry.undFullName[0] = 0;
+ csEntry.offsetFromSmybol = 0;
+ csEntry.offsetFromLine = 0;
+ csEntry.lineFileName[0] = 0;
+ csEntry.lineNumber = 0;
+ csEntry.loadedImageName[0] = 0;
+ csEntry.moduleName[0] = 0;
+ if (s.AddrPC.Offset == s.AddrReturn.Offset)
+ {
+ if ((this->m_MaxRecursionCount > 0) && (curRecursionCount > m_MaxRecursionCount))
+ {
+ this->OnDbgHelpErr("StackWalk64-Endless-Callstack!", 0, s.AddrPC.Offset);
+ break;
+ }
+ curRecursionCount++;
+ }
+ else
+ {
+ curRecursionCount = 0;
+ }
+ if (s.AddrPC.Offset != 0)
+ {
+ // we seem to have a valid PC
+ // show procedure info (SymGetSymFromAddr64())
+ if (this->m_sw->pSGSFA(this->m_hProcess, s.AddrPC.Offset, &(csEntry.offsetFromSmybol), pSym) != FALSE)
+ {
+ MyStrCpy(csEntry.name, pSym->Name);
+ // UnDecorateSymbolName()
+ this->m_sw->pUDSN(pSym->Name, csEntry.undName, static_cast<DWORD>(sizeof(csEntry.undName)), UNDNAME_NAME_ONLY);
+ this->m_sw->pUDSN(pSym->Name, csEntry.undFullName, static_cast<DWORD>(sizeof(csEntry.undFullName)), UNDNAME_COMPLETE);
+ }
+ else
+ {
+ this->OnDbgHelpErr("SymGetSymFromAddr64", GetLastError(), s.AddrPC.Offset);
+ }
+
+ // show line number info, NT5.0-method (SymGetLineFromAddr64())
+ if (this->m_sw->pSGLFA != nullptr)
+ {
+ if (this->m_sw->pSGLFA(this->m_hProcess, s.AddrPC.Offset, &(csEntry.offsetFromLine), &Line) != FALSE)
+ {
+ csEntry.lineNumber = Line.LineNumber;
+ MyStrCpy(csEntry.lineFileName, Line.FileName);
+ }
+ else
+ {
+ this->OnDbgHelpErr("SymGetLineFromAddr64", GetLastError(), s.AddrPC.Offset);
+ }
+ }
+
+ // show module info (SymGetModuleInfo64())
+ if (this->m_sw->GetModuleInfo(this->m_hProcess, s.AddrPC.Offset, &Module) != FALSE)
+ {
+ switch (Module.SymType)
+ {
+ case SymNone: csEntry.symTypeString = "-nosymbols-"; break;
+ case SymCoff: csEntry.symTypeString = "COFF"; break;
+ case SymCv: csEntry.symTypeString = "CV"; break;
+ case SymPdb: csEntry.symTypeString = "PDB"; break;
+ case SymExport: csEntry.symTypeString = "-exported-"; break;
+ case SymDeferred: csEntry.symTypeString = "-deferred-"; break;
+ case SymSym: csEntry.symTypeString = "SYM"; break;
+ case SymDia: csEntry.symTypeString = "DIA"; break;
+ case 8: csEntry.symTypeString = "Virtual"; break;
+ default: csEntry.symTypeString = nullptr; break;
+ }
+
+ MyStrCpy(csEntry.moduleName, Module.ModuleName);
+ csEntry.baseOfImage = Module.BaseOfImage;
+ MyStrCpy(csEntry.loadedImageName, Module.LoadedImageName);
+ }
+ else
+ {
+ this->OnDbgHelpErr("SymGetModuleInfo64", GetLastError(), s.AddrPC.Offset);
+ }
+ }
+
+ CallstackEntryType et = nextEntry;
+ if (frameNum == 0)
+ {
+ et = firstEntry;
+ }
+ bLastEntryCalled = false;
+ this->OnCallstackEntry(et, csEntry);
+
+ if (s.AddrReturn.Offset == 0)
+ {
+ bLastEntryCalled = true;
+ this->OnCallstackEntry(lastEntry, csEntry);
+ SetLastError(ERROR_SUCCESS);
+ break;
+ }
+ } // for (frameNum)
+
+cleanup:
+ if (pSym)
+ {
+ free(pSym);
+ }
+
+ if (bLastEntryCalled == false)
+ {
+ this->OnCallstackEntry(lastEntry, csEntry);
+ }
+
+ if (context == nullptr)
+ {
+ ResumeThread(hThread);
+ }
+
+ return TRUE;
+}
+
+
+
+
+
+BOOL __stdcall WinStackWalker::myReadProcMem(
+ HANDLE hProcess,
+ DWORD64 qwBaseAddress,
+ PVOID lpBuffer,
+ DWORD nSize,
+ LPDWORD lpNumberOfBytesRead
+)
+{
+ if (s_readMemoryFunction == nullptr)
+ {
+ SIZE_T st;
+ BOOL bRet = ReadProcessMemory(hProcess, (LPVOID)qwBaseAddress, lpBuffer, nSize, &st);
+ *lpNumberOfBytesRead = (DWORD)st;
+ // printf("ReadMemory: hProcess: %p, baseAddr: %p, buffer: %p, size: %d, read: %d, result: %d\n", hProcess, (LPVOID) qwBaseAddress, lpBuffer, nSize, (DWORD) st, (DWORD) bRet);
+ return bRet;
+ }
+ else
+ {
+ return s_readMemoryFunction(hProcess, qwBaseAddress, lpBuffer, nSize, lpNumberOfBytesRead, s_readMemoryFunction_UserData);
+ }
+}
+
+
+
+
+
+void WinStackWalker::OnLoadModule(LPCSTR img, LPCSTR mod, DWORD64 baseAddr, DWORD size, DWORD result, LPCSTR symType, LPCSTR pdbName, ULONGLONG fileVersion)
+{
+ char buffer[STACKWALK_MAX_NAMELEN];
+ if (fileVersion == 0)
+ {
+ _snprintf_s(buffer, sizeof(buffer), "%s:%s (%p), size: %d (result: %d), SymType: '%s', PDB: '%s'\n", img, mod, (LPVOID)baseAddr, size, result, symType, pdbName);
+ }
+ else
+ {
+ DWORD v4 = (DWORD)fileVersion & 0xFFFF;
+ DWORD v3 = (DWORD)(fileVersion >> 16) & 0xFFFF;
+ DWORD v2 = (DWORD)(fileVersion >> 32) & 0xFFFF;
+ DWORD v1 = (DWORD)(fileVersion >> 48) & 0xFFFF;
+ _snprintf_s(buffer, sizeof(buffer), "%s:%s (%p), size: %d (result: %d), SymType: '%s', PDB: '%s', fileVersion: %d.%d.%d.%d\n", img, mod, (LPVOID)baseAddr, size, result, symType, pdbName, v1, v2, v3, v4);
+ }
+ OnOutput(buffer);
+}
+
+
+
+
+
+void WinStackWalker::OnCallstackEntry(CallstackEntryType eType, CallstackEntry &entry)
+{
+ CHAR buffer[STACKWALK_MAX_NAMELEN + MAX_PATH + 100];
+ if ((eType == lastEntry) || (entry.offset == 0))
+ {
+ return;
+ }
+ if (entry.undFullName[0] != 0)
+ {
+ MyStrCpy(entry.name, entry.undFullName);
+ }
+ else if (entry.undName[0] != 0)
+ {
+ MyStrCpy(entry.name, entry.undName);
+ }
+ else if (entry.name[0] == 0)
+ {
+ MyStrCpy(entry.name, "(function-name not available)");
+ }
+ if (entry.lineFileName[0] == 0)
+ {
+ MyStrCpy(entry.lineFileName, "(filename not available)");
+ if (entry.moduleName[0] == 0)
+ {
+ MyStrCpy(entry.moduleName, "(module-name not available)");
+ }
+ _snprintf_s(buffer, sizeof(buffer), "%p (%s): %s: %s\n", (LPVOID)entry.offset, entry.moduleName, entry.lineFileName, entry.name);
+ }
+ else
+ {
+ _snprintf_s(buffer, sizeof(buffer), "%s (%d): %s\n", entry.lineFileName, entry.lineNumber, entry.name);
+ }
+ OnOutput(buffer);
+}
+
+
+
+
+
+void WinStackWalker::OnDbgHelpErr(LPCSTR szFuncName, DWORD gle, DWORD64 addr)
+{
+ CHAR buffer[STACKWALK_MAX_NAMELEN];
+ _snprintf_s(buffer, sizeof(buffer), "ERROR: %s, GetLastError: %d (Address: %p)\n", szFuncName, gle, (LPVOID)addr);
+ OnOutput(buffer);
+}
+
+
+
+
+
+void WinStackWalker::OnSymInit(LPCSTR szSearchPath, DWORD symOptions, LPCSTR szUserName)
+{
+ CHAR buffer[STACKWALK_MAX_NAMELEN];
+ _snprintf_s(buffer, sizeof(buffer), "SymInit: Symbol-SearchPath: '%s', symOptions: %d, UserName: '%s'\n", szSearchPath, symOptions, szUserName);
+ OnOutput(buffer);
+ // Also display the OS-version
+ OSVERSIONINFOEXA ver;
+ ZeroMemory(&ver, sizeof(OSVERSIONINFOEXA));
+ ver.dwOSVersionInfoSize = sizeof(ver);
+ if (GetVersionExA((OSVERSIONINFOA*)&ver) != FALSE)
+ {
+ _snprintf_s(buffer, sizeof(buffer), "OS-Version: %d.%d.%d (%s) 0x%x-0x%x\n",
+ ver.dwMajorVersion, ver.dwMinorVersion, ver.dwBuildNumber,
+ ver.szCSDVersion, ver.wSuiteMask, ver.wProductType
+ );
+ OnOutput(buffer);
+ }
+}
+
+
+
+
+
+void WinStackWalker::OnOutput(LPCSTR buffer)
+{
+ OutputDebugStringA(buffer);
+}
+
+
+
+
+#endif // _WIN32