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dynamically load Dbghelp.dll

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This commit is contained in:
FunkyFr3sh 2024-09-29 17:09:24 +02:00
parent 5336f7d1ec
commit d680af0a4a
3 changed files with 45 additions and 32 deletions
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69
src/debug.c
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@ -39,51 +39,64 @@ LONG WINAPI dbg_exception_handler(EXCEPTION_POINTERS* exception)
{
g_dbg_crash_count++;
#if (_WIN32_WINNT >= _WIN32_WINNT_WIN2K)
HANDLE dmp =
CreateFile(
g_dbg_crash_count == 1 ? g_dbg_dmp_path1 : g_dbg_dmp_path2,
GENERIC_READ | GENERIC_WRITE,
FILE_SHARE_WRITE | FILE_SHARE_READ,
0,
CREATE_ALWAYS,
0,
0);
BOOL(WINAPI * MiniDumpWriteDumpProc)(
HANDLE,
DWORD,
HANDLE,
MINIDUMP_TYPE,
PMINIDUMP_EXCEPTION_INFORMATION,
PMINIDUMP_USER_STREAM_INFORMATION,
PMINIDUMP_CALLBACK_INFORMATION
);
if (dmp != INVALID_HANDLE_VALUE)
MiniDumpWriteDumpProc = (void*)real_GetProcAddress(real_LoadLibraryA("Dbghelp.dll"), "MiniDumpWriteDump");
if (MiniDumpWriteDumpProc)
{
MINIDUMP_EXCEPTION_INFORMATION info;
info.ThreadId = GetCurrentThreadId();
info.ExceptionPointers = exception;
info.ClientPointers = TRUE;
HANDLE dmp =
CreateFile(
g_dbg_crash_count == 1 ? g_dbg_dmp_path1 : g_dbg_dmp_path2,
GENERIC_READ | GENERIC_WRITE,
FILE_SHARE_WRITE | FILE_SHARE_READ,
0,
CREATE_ALWAYS,
0,
0);
MiniDumpWriteDump(
GetCurrentProcess(),
GetCurrentProcessId(),
dmp,
0,
&info,
NULL,
NULL);
if (dmp != INVALID_HANDLE_VALUE)
{
MINIDUMP_EXCEPTION_INFORMATION info;
info.ThreadId = GetCurrentThreadId();
info.ExceptionPointers = exception;
info.ClientPointers = TRUE;
CloseHandle(dmp);
MiniDumpWriteDump(
GetCurrentProcess(),
GetCurrentProcessId(),
dmp,
0,
&info,
NULL,
NULL);
CloseHandle(dmp);
}
}
#endif
if (exception && exception->ExceptionRecord)
{
HMODULE mod = NULL;
char filename[MAX_PATH] = { 0 };
#if (_WIN32_WINNT >= _WIN32_WINNT_WINXP)
if (GetModuleHandleExA(
BOOL(WINAPI * getModuleHandleExA)(DWORD, LPCSTR, HMODULE*) =
(void*)real_GetProcAddress(real_LoadLibraryA("Kernel32.dll"), "GetModuleHandleExA");
if (getModuleHandleExA && getModuleHandleExA(
GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS | GET_MODULE_HANDLE_EX_FLAG_UNCHANGED_REFCOUNT,
exception->ExceptionRecord->ExceptionAddress,
&mod))
{
GetModuleFileNameA(mod, filename, sizeof(filename) - 1);
}
#endif
TRACE(
"Exception at %p (%p+%p), Code=%08X - %s\n",