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https://code.videolan.org/videolan/vlc
synced 2024-09-12 13:44:56 +02:00
Win32: generate stacktrace on unhandled exception
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parent
3230451120
commit
f7c9acaebd
89
bin/winvlc.c
89
bin/winvlc.c
@ -35,6 +35,13 @@
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#include <stdlib.h>
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#include <windows.h>
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#if !defined(UNDER_CE) && defined ( NDEBUG )
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# define _WIN32_IE 0x500
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# include <shlobj.h>
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# include <tlhelp32.h>
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LONG WINAPI vlc_exception_filter(struct _EXCEPTION_POINTERS *lpExceptionInfo);
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#endif
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#ifndef UNDER_CE
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static char *FromWide (const wchar_t *wide)
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{
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@ -128,6 +135,10 @@ int WINAPI WinMain( HINSTANCE hInstance, HINSTANCE hPrevInstance,
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libvlc_exception_init (&ex);
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libvlc_exception_init (&dummy);
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#if !defined( UNDER_CE ) && defined ( NDEBUG )
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SetUnhandledExceptionFilter(vlc_exception_filter);
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#endif
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/* Initialize libvlc */
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libvlc_instance_t *vlc;
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vlc = libvlc_new (argc - 1, (const char **)argv + 1, &ex);
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@ -149,3 +160,81 @@ int WINAPI WinMain( HINSTANCE hInstance, HINSTANCE hPrevInstance,
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(void)hInstance; (void)hPrevInstance; (void)lpCmdLine; (void)nCmdShow;
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return ret;
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}
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#if !defined( UNDER_CE ) && defined ( NDEBUG )
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/*****************************************************************************
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* vlc_exception_filter: handles unhandled exceptions, like segfaults
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*****************************************************************************/
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LONG WINAPI vlc_exception_filter(struct _EXCEPTION_POINTERS *lpExceptionInfo)
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{
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wchar_t wdir[MAX_PATH];
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fprintf( stderr, "unhandled vlc exception\n" );
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if( S_OK != SHGetFolderPathW( NULL,
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CSIDL_APPDATA | CSIDL_FLAG_CREATE,
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NULL, SHGFP_TYPE_CURRENT, wdir ) )
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fprintf( stderr, "Can't open the vlc conf PATH\n" );
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swprintf( wdir+wcslen( wdir ), L"%s", L"\\vlc\\crashdump" );
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FILE * fd = _wfopen ( wdir, L"w, ccs=UTF-8" );
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if( !fd )
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fprintf( stderr, "\nerror while opening file" );
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OSVERSIONINFO osvi;
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ZeroMemory( &osvi, sizeof(OSVERSIONINFO) );
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osvi.dwOSVersionInfoSize = sizeof( OSVERSIONINFO );
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GetVersionEx( &osvi );
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fwprintf( fd, L"[Version]\n0S=%d.%d.%d.%d.%s\nVLC=%s", osvi.dwMajorVersion,
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osvi.dwMinorVersion,
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osvi.dwBuildNumber,
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osvi.dwPlatformId,
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osvi.szCSDVersion,
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VERSION_MESSAGE);
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const CONTEXT *const pContext = (const CONTEXT *)lpExceptionInfo->ContextRecord;
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const EXCEPTION_RECORD *const pException = (const EXCEPTION_RECORD *)lpExceptionInfo->ExceptionRecord;
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/*No nested exceptions for now*/
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fwprintf( fd, L"\n\n[Exceptions]\n%08x at %08x",pException->ExceptionCode,
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pException->ExceptionAddress );
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if( pException->NumberParameters > 0 )
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{
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unsigned int i;
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for( i = 0; i < pException->NumberParameters; i++ )
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fprintf( fd, " | %08x", pException->ExceptionInformation[i] );
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}
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fwprintf( fd, L"\n\n[CONTEXT]\nEDI:%08x\nESI:%08x\n" \
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"EBX:%08x\nEDX:%08xn\nECX:%08x\nEAX:%08x\n" \
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"EBP:%08x\nEIP:%08x\nESP:%08x\n",
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pContext->Edi,pContext->Esi,pContext->Ebx,
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pContext->Edx,pContext->Ecx,pContext->Eax,
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pContext->Ebp,pContext->Eip,pContext->Esp );
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fwprintf( fd, L"\n\n[STACKTRACE]\n#EIP|base|module\n" );
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DWORD pEbp = pContext->Ebp;
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DWORD caller = *((DWORD*)pEbp + 1) ;
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wchar_t module[ 256 ];
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do
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{
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MEMORY_BASIC_INFORMATION mbi ;
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VirtualQuery( (DWORD *)caller, &mbi, sizeof( mbi ) ) ;
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HINSTANCE hInstance = mbi.AllocationBase;
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GetModuleFileName( hInstance, module, 256 ) ;
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fwprintf( fd, L"%08x|%08x|%s\n", caller, hInstance, module );
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pEbp = *(DWORD*)pEbp ;
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caller = *((DWORD*)pEbp + 1) ;
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/*The last EBP points to NULL!*/
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}while(caller);
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fclose( fd );
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fflush( stderr );
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exit( 1 );
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}
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#endif
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