| 21 | int numMoreStacktraces = 5; |
| 22 | |
| 23 | LONG WINAPI logWindowsException( LPEXCEPTION_POINTERS pExInfo ) |
| 24 | { |
| 25 | thread_local bool logging = false; |
| 26 | if ( logging ) |
| 27 | return EXCEPTION_CONTINUE_SEARCH; //avoid recursive logging |
| 28 | |
| 29 | if ( !pExInfo ) |
| 30 | return EXCEPTION_CONTINUE_SEARCH; |
| 31 | PEXCEPTION_RECORD pExceptionRecord = pExInfo->ExceptionRecord; |
| 32 | |
| 33 | if ( pExceptionRecord->ExceptionCode == EXCEPTION_BREAKPOINT || |
| 34 | pExceptionRecord->ExceptionCode == EXCEPTION_SINGLE_STEP || |
| 35 | pExceptionRecord->ExceptionCode == RPC_UNAVAILABLE || |
| 36 | pExceptionRecord->ExceptionCode == EXCEPTION_CXX || |
| 37 | pExceptionRecord->ExceptionCode == MS_VC_EXCEPTION ) |
| 38 | return EXCEPTION_CONTINUE_SEARCH; //normal situation, handled otherwise |
| 39 | |
| 40 | logging = true; |
| 41 | if ( pExceptionRecord->ExceptionCode == EXCEPTION_ACCESS_VIOLATION && pExceptionRecord->NumberParameters >= 2 ) |
| 42 | { |
| 43 | // https://stackoverflow.com/a/22850748/7325599 |
| 44 | auto type = []( ULONG64 v ) |
| 45 | { |
| 46 | if ( v == 0 ) |
| 47 | return "reading"; |
| 48 | if ( v == 1 ) |
| 49 | return "writing"; |
| 50 | if ( v == 8 ) |
| 51 | return "DEP"; |
| 52 | return "???"; |
| 53 | }; |
| 54 | spdlog::critical( "Access violation: {} at {:#010x}", |
| 55 | type( pExceptionRecord->ExceptionInformation[0] ), |
| 56 | pExceptionRecord->ExceptionInformation[1] ); |
| 57 | } |
| 58 | else if ( pExceptionRecord->ExceptionCode == DBG_PRINTEXCEPTION_C && pExceptionRecord->NumberParameters >= 2 ) |
| 59 | { |
| 60 | // https://stackoverflow.com/a/41480827/7325599 |
| 61 | auto len = pExceptionRecord->ExceptionInformation[0]; |
| 62 | if ( len ) |
| 63 | --len; |
| 64 | const auto * p = (PCSTR)pExceptionRecord->ExceptionInformation[1]; |
| 65 | spdlog::info( "Narrow debug information: {}", std::string_view( p, len ) ); |
| 66 | } |
| 67 | else if ( pExceptionRecord->ExceptionCode == DBG_PRINTEXCEPTION_WIDE_C && pExceptionRecord->NumberParameters >= 2 ) |
| 68 | { |
| 69 | // https://stackoverflow.com/a/41480827/7325599 |
| 70 | auto len = pExceptionRecord->ExceptionInformation[0]; |
| 71 | if ( len ) |
| 72 | --len; |
| 73 | const auto * p = (PCWSTR)pExceptionRecord->ExceptionInformation[1]; |
| 74 | spdlog::info( "Wide debug information: {}", Utf16ToUtf8( std::wstring_view( p, len ) ) ); |
| 75 | } |
| 76 | else |
| 77 | spdlog::warn( "Windows exception {:#010x}", pExceptionRecord->ExceptionCode ); |
| 78 | |
| 79 | if ( numMoreStacktraces > 0 ) |
| 80 | { |
nothing calls this directly
no test coverage detected