SL-14961 Coroutine crash was not reported to bugsplat

indra/llcommon/llapp.h

@@ -259,6 +259,10 @@ public:
 	  */
 	LLRunner& getRunner() { return mRunner; }
 
+#ifdef LL_WINDOWS
+    virtual void reportCrashToBugsplat(void* pExcepInfo /*EXCEPTION_POINTERS*/) { }
+#endif
+
 public:
 	typedef std::map<std::string, std::string> string_map;
 	string_map mOptionMap;	// Contains all command-line options and arguments in a map

indra/llcommon/llcoros.cpp

@@ -255,8 +255,21 @@ std::string LLCoros::launch(const std::string& prefix, const callable_t& callabl
 
 static const U32 STATUS_MSC_EXCEPTION = 0xE06D7363; // compiler specific
 
-U32 exception_filter(U32 code, struct _EXCEPTION_POINTERS *exception_infop)
+U32 cpp_exception_filter(U32 code, struct _EXCEPTION_POINTERS *exception_infop, const std::string& name)
 {
+    // C++ exceptions were logged in toplevelTryWrapper, but not SEH
+    // log SEH exceptions here, to make sure it gets into bugsplat's 
+    // report and because __try won't allow std::string operations
+    if (code != STATUS_MSC_EXCEPTION)
+    {
+        LL_WARNS() << "SEH crash in " << name << ", code: " << code << LL_ENDL;
+    }
+    // Handle bugsplat here, since GetExceptionInformation() can only be
+    // called from within filter for __except(filter), not from __except's {}
+    // Bugsplat should get all exceptions, C++ and SEH
+    LLApp::instance()->reportCrashToBugsplat(exception_infop);
+
+    // Only convert non C++ exceptions.
     if (code == STATUS_MSC_EXCEPTION)
     {
         // C++ exception, go on
@@ -269,29 +282,29 @@ U32 exception_filter(U32 code, struct _EXCEPTION_POINTERS *exception_infop)
     }
 }
 
-void LLCoros::winlevel(const callable_t& callable)
+void LLCoros::winlevel(const std::string& name, const callable_t& callable)
 {
     __try
     {
-        callable();
+        toplevelTryWrapper(name, callable);
     }
-    __except (exception_filter(GetExceptionCode(), GetExceptionInformation()))
+    __except (cpp_exception_filter(GetExceptionCode(), GetExceptionInformation(), name))
     {
-        // convert to C++ styled exception
+        // convert to C++ styled exception for handlers other than bugsplat
         // Note: it might be better to use _se_set_translator
         // if you want exception to inherit full callstack
-        char integer_string[32];
-        sprintf(integer_string, "SEH, code: %lu\n", GetExceptionCode());
+        //
+        // in case of bugsplat this will get to exceptionTerminateHandler and
+        // looks like fiber will terminate application after that
+        char integer_string[512];
+        sprintf(integer_string, "SEH crash in %s, code: %lu\n", name.c_str(), GetExceptionCode());
         throw std::exception(integer_string);
     }
 }
 
 #endif
 
-// Top-level wrapper around caller's coroutine callable.
-// Normally we like to pass strings and such by const reference -- but in this
-// case, we WANT to copy both the name and the callable to our local stack!
-void LLCoros::toplevel(std::string name, callable_t callable)
+void LLCoros::toplevelTryWrapper(const std::string& name, const callable_t& callable)
 {
     // keep the CoroData on this top-level function's stack frame
     CoroData corodata(name);
@@ -301,16 +314,12 @@ void LLCoros::toplevel(std::string name, callable_t callable)
     // run the code the caller actually wants in the coroutine
     try
     {
-#if LL_WINDOWS && LL_RELEASE_FOR_DOWNLOAD
-        winlevel(callable);
-#else
         callable();
-#endif
     }
     catch (const Stop& exc)
     {
         LL_INFOS("LLCoros") << "coroutine " << name << " terminating because "
-                            << exc.what() << LL_ENDL;
+            << exc.what() << LL_ENDL;
     }
     catch (const LLContinueError&)
     {
@@ -323,10 +332,25 @@ void LLCoros::toplevel(std::string name, callable_t callable)
     {
         // Any OTHER kind of uncaught exception will cause the viewer to
         // crash, hopefully informatively.
-        CRASH_ON_UNHANDLED_EXCEPTION(STRINGIZE("coroutine " << name));
+        LOG_UNHANDLED_EXCEPTION(STRINGIZE("coroutine " << name));
+        // to not modify callstack
+        throw;
     }
 }
 
+// Top-level wrapper around caller's coroutine callable.
+// Normally we like to pass strings and such by const reference -- but in this
+// case, we WANT to copy both the name and the callable to our local stack!
+void LLCoros::toplevel(std::string name, callable_t callable)
+{
+#if LL_WINDOWS
+    // Can not use __try in functions that require unwinding, so use one more wrapper
+    winlevel(name, callable);
+#else
+    toplevelTryWrapper(name, callable);
+#endif
+}
+
 //static
 void LLCoros::checkStop()
 {

indra/llcommon/llcoros.h

@@ -290,11 +290,12 @@ public:
 
 private:
     std::string generateDistinctName(const std::string& prefix) const;
+#if LL_WINDOWS
+    void winlevel(const std::string& name, const callable_t& callable);
+#endif
+    void toplevelTryWrapper(const std::string& name, const callable_t& callable);
     void toplevel(std::string name, callable_t callable);
     struct CoroData;
-#if LL_WINDOWS
-    static void winlevel(const callable_t& callable);
-#endif
     static CoroData& get_CoroData(const std::string& caller);
 
     S32 mStackSize;

indra/newview/llappviewer.cpp

@@ -5552,7 +5552,7 @@ void LLAppViewer::forceErrorDriverCrash()
 void LLAppViewer::forceErrorCoroutineCrash()
 {
     LL_WARNS() << "Forcing a crash in LLCoros" << LL_ENDL;
-    LLCoros::instance().launch("LLAppViewer::crashyCoro", [] {throw std::exception("A deliberate crash from LLCoros"); });
+    LLCoros::instance().launch("LLAppViewer::crashyCoro", [] {throw LLException("A deliberate crash from LLCoros"); });
 }
 
 void LLAppViewer::forceErrorThreadCrash()

indra/newview/llappviewerwin32.cpp

@@ -709,6 +709,16 @@ bool LLAppViewerWin32::cleanup()
 	return result;
 }
 
+void LLAppViewerWin32::reportCrashToBugsplat(void* pExcepInfo)
+{
+#if defined(LL_BUGSPLAT)
+    if (sBugSplatSender)
+    {
+        sBugSplatSender->createReport((EXCEPTION_POINTERS*)pExcepInfo);
+    }
+#endif // LL_BUGSPLAT
+}
+
 void LLAppViewerWin32::initLoggingAndGetLastDuration()
 {
 	LLAppViewer::initLoggingAndGetLastDuration();

indra/newview/llappviewerwin32.h

@@ -40,20 +40,22 @@ public:
 	//
 	// Main application logic
 	//
-	virtual bool init(); // Override to do application initialization
-	virtual bool cleanup();
+	bool init() override; // Override to do application initialization
+    bool cleanup() override;
+
+    void reportCrashToBugsplat(void* pExcepInfo) override;
 
 protected:
-	virtual void initLoggingAndGetLastDuration(); // Override to clean stack_trace info.
-	virtual void initConsole(); // Initialize OS level debugging console.
-	virtual bool initHardwareTest(); // Win32 uses DX9 to test hardware.
-	virtual bool initParseCommandLine(LLCommandLineParser& clp);
+	void initLoggingAndGetLastDuration() override; // Override to clean stack_trace info.
+	void initConsole() override; // Initialize OS level debugging console.
+	bool initHardwareTest() override; // Win32 uses DX9 to test hardware.
+	bool initParseCommandLine(LLCommandLineParser& clp) override;
 
-	virtual bool beingDebugged();
-	virtual bool restoreErrorTrap();
-	virtual void initCrashReporting(bool reportFreeze); 
+	bool beingDebugged() override;
+	bool restoreErrorTrap() override;
+	void initCrashReporting(bool reportFreeze) override;
 
-	virtual bool sendURLToOtherInstance(const std::string& url);
+	bool sendURLToOtherInstance(const std::string& url) override;
 
 	std::string generateSerialNumber();