diff options
Diffstat (limited to 'contrib/llvm/lib/Support/Windows/Signals.inc')
| -rw-r--r-- | contrib/llvm/lib/Support/Windows/Signals.inc | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/contrib/llvm/lib/Support/Windows/Signals.inc b/contrib/llvm/lib/Support/Windows/Signals.inc index 3dd6660..b18b4d1 100644 --- a/contrib/llvm/lib/Support/Windows/Signals.inc +++ b/contrib/llvm/lib/Support/Windows/Signals.inc @@ -178,6 +178,19 @@ namespace llvm { //===----------------------------------------------------------------------===// #ifdef _MSC_VER +/// AvoidMessageBoxHook - Emulates hitting "retry" from an "abort, retry, +/// ignore" CRT debug report dialog. "retry" raises an exception which +/// ultimately triggers our stack dumper. +static int AvoidMessageBoxHook(int ReportType, char *Message, int *Return) { + // Set *Return to the retry code for the return value of _CrtDbgReport: + // http://msdn.microsoft.com/en-us/library/8hyw4sy7(v=vs.71).aspx + // This may also trigger just-in-time debugging via DebugBreak(). + if (Return) + *Return = 1; + // Don't call _CrtDbgReport. + return TRUE; +} + /// CRTReportHook - Function called on a CRT debugging event. static int CRTReportHook(int ReportType, char *Message, int *Return) { // Don't cause a DebugBreak() on return. @@ -238,6 +251,15 @@ static void RegisterHandler() { OldFilter = SetUnhandledExceptionFilter(LLVMUnhandledExceptionFilter); SetConsoleCtrlHandler(LLVMConsoleCtrlHandler, TRUE); +#ifdef _MSC_VER + const char *EnableMsgbox = getenv("LLVM_ENABLE_CRT_REPORT"); + if (!EnableMsgbox || strcmp("0", EnableMsgbox) == 0) { + // Setting a report hook overrides the default behavior of popping an "abort, + // retry, or ignore" dialog. + _CrtSetReportHook(AvoidMessageBoxHook); + } +#endif + // Environment variable to disable any kind of crash dialog. if (getenv("LLVM_DISABLE_CRASH_REPORT")) { #ifdef _MSC_VER |
