MAINT-8154 Disabled exception handling in LLAppViewer::frame() to get proper call stacks

indra/newview/llappviewer.cpp

@@ -397,6 +397,8 @@ BOOL gCrashOnStartup = FALSE;
 BOOL gLLErrorActivated = FALSE;
 BOOL gLogoutInProgress = FALSE;
 
+BOOL gSimulateMemLeak = FALSE;
+
 ////////////////////////////////////////////////////////////
 // Internal globals... that should be removed.
 
@@ -1540,6 +1542,35 @@ static LLTrace::BlockTimerStatHandle FTM_AGENT_UPDATE("Update");
 LLTrace::BlockTimerStatHandle FTM_FRAME("Frame");
 
 bool LLAppViewer::frame()
+{
+	bool ret = false;
+
+	if (gSimulateMemLeak)
+	{
+		try
+		{
+			ret = doFrame();
+		}
+		catch (std::bad_alloc)
+		{
+			LLMemory::logMemoryInfo(TRUE);
+			LLFloaterMemLeak* mem_leak_instance = LLFloaterReg::findTypedInstance<LLFloaterMemLeak>("mem_leaking");
+			if (mem_leak_instance)
+			{
+				mem_leak_instance->stop();
+			}
+			LL_WARNS() << "Bad memory allocation in LLAppViewer::frame()!" << LL_ENDL;
+		}
+	}
+	else
+	{ 
+		ret = doFrame();
+	}
+
+	return ret;
+}
+
+bool LLAppViewer::doFrame()
 {
 	LLEventPump& mainloop(LLEventPumps::instance().obtain("mainloop"));
 	LLSD newFrame;
@@ -1568,7 +1599,6 @@ bool LLAppViewer::frame()
 	//check memory availability information
 	checkMemory() ;
 
-	try
 	{
 		// <FS:Ansariel> MaxFPS Viewer-Chui merge error
 		// Check if we need to restore rendering masks.
@@ -1617,12 +1647,15 @@ bool LLAppViewer::frame()
 		}
 
 		//memory leaking simulation
-		LLFloaterMemLeak* mem_leak_instance =
-			LLFloaterReg::findTypedInstance<LLFloaterMemLeak>("mem_leaking");
-		if(mem_leak_instance)
+		if (gSimulateMemLeak)
 		{
-			mem_leak_instance->idle() ;				
-		}							
+			LLFloaterMemLeak* mem_leak_instance =
+				LLFloaterReg::findTypedInstance<LLFloaterMemLeak>("mem_leaking");
+			if (mem_leak_instance)
+			{
+				mem_leak_instance->idle();
+			}
+		}
 
 		// canonical per-frame event
 		mainloop.post(newFrame);
@@ -1809,60 +1842,13 @@ bool LLAppViewer::frame()
 			pingMainloopTimeout("Main:End");
 		}
 	}
-	catch (const LLContinueError&)
-	{
-		LOG_UNHANDLED_EXCEPTION("");
-	}
-	catch(std::bad_alloc)
-	{
-		LLMemory::logMemoryInfo(TRUE) ;
-
-		//stop memory leaking simulation
-		LLFloaterMemLeak* mem_leak_instance =
-			LLFloaterReg::findTypedInstance<LLFloaterMemLeak>("mem_leaking");
-		if(mem_leak_instance)
-		{
-			mem_leak_instance->stop() ;
-			LL_WARNS() << "Bad memory allocation in LLAppViewer::frame()!" << LL_ENDL ;
-		}
-		else
-		{
-			//output possible call stacks to log file.
-			LLError::LLCallStacks::print() ;
-
-			LL_ERRS() << "Bad memory allocation in LLAppViewer::frame()!" << LL_ENDL ;
-		}
-	}
-	catch (...)
-	{
-		CRASH_ON_UNHANDLED_EXCEPTION("");
-	}
 
 	if (LLApp::isExiting())
 	{
 		// Save snapshot for next time, if we made it through initialization
 		if (STATE_STARTED == LLStartUp::getStartupState())
 		{
-			try
-			{
-				saveFinalSnapshot();
-			}
-			catch(std::bad_alloc)
-			{
-				LL_WARNS() << "Bad memory allocation when saveFinalSnapshot() is called!" << LL_ENDL ;
-
-				//stop memory leaking simulation
-				LLFloaterMemLeak* mem_leak_instance =
-				LLFloaterReg::findTypedInstance<LLFloaterMemLeak>("mem_leaking");
-				if(mem_leak_instance)
-				{
-					mem_leak_instance->stop() ;
-				}
-			}
-			catch (...)
-			{
-				CRASH_ON_UNHANDLED_EXCEPTION("saveFinalSnapshot()");
-			}
+			saveFinalSnapshot();
 		}
 
 		// <FS:Ansariel> Cut down wait on logout; Need to terminate voice here because we need gServicePump!

indra/newview/llappviewer.h

@@ -234,6 +234,8 @@ protected:
 
 private:
 
+	bool doFrame();
+
 	void initMaxHeapSize();
 	bool initThreads(); // Initialize viewer threads, return false on failure.
 	bool initConfiguration(); // Initialize settings from the command line/config file.
@@ -443,4 +445,6 @@ extern LLUUID gBlackSquareID;
 extern BOOL gRandomizeFramerate;
 extern BOOL gPeriodicSlowFrame;
 
+extern BOOL gSimulateMemLeak;
+
 #endif // LL_LLAPPVIEWER_H

indra/newview/llfloatermemleak.cpp

@@ -42,6 +42,8 @@ U32 LLFloaterMemLeak::sTotalLeaked = 0 ;
 S32 LLFloaterMemLeak::sStatus = LLFloaterMemLeak::STOP ;
 BOOL LLFloaterMemLeak::sbAllocationFailed = FALSE ;
 
+extern BOOL gSimulateMemLeak;
+
 LLFloaterMemLeak::LLFloaterMemLeak(const LLSD& key)
 	: LLFloater(key)
 {
@@ -104,6 +106,7 @@ void LLFloaterMemLeak::release()
 	sStatus = STOP ;
 	sTotalLeaked = 0 ;
 	sbAllocationFailed = FALSE ;
+	gSimulateMemLeak = FALSE;
 }
 
 void LLFloaterMemLeak::stop()
@@ -140,8 +143,7 @@ void LLFloaterMemLeak::idle()
 	}
 	if(!p)
 	{
-		sStatus = STOP ;
-		sbAllocationFailed = TRUE ;
+		stop();
 	}
 }
 
@@ -181,6 +183,7 @@ void LLFloaterMemLeak::onChangeMaxMemLeaking()
 void LLFloaterMemLeak::onClickStart()
 {
 	sStatus = START ;
+	gSimulateMemLeak = TRUE;
 }
 
 void LLFloaterMemLeak::onClickStop()