Merge pull request #9049 from mono/native-crash-pinvoke

Add example of how to crash from a pinvoke

Author: jtorres

.gitignore

@@ -23,7 +23,7 @@ obj/
 /main/build/MacOSX/monostub
 /main/build/MacOSX/monostub-nogui
 /main/build/MacOSx/monostub-test
-/main/build/MacOSX/libsystemnative.dylib
+/main/build/MacOSX/libdebugcrash.dylib
 /local-libs
 /main/build/tests
 /main/monodevelop_version

main/build/MacOSX/Makefile.am

@@ -40,16 +40,28 @@ MONOSTUB_RPATH=-Wl,-rpath,/Library/Frameworks/Mono.framework/Libraries/ \
 -Wl,-rpath,/usr/lib/ \
 -Wl,-rpath,/usr/local/lib/
 
-all: monostub monostub-nogui monostub-test
+all: monostub monostub-nogui monostub-test debugcrash
 
 render.exe: render.cs
 	mcs -r:System.Drawing render.cs
 
 dmg: render.exe app
 	./make-dmg-bundle.sh
 
+if !RELEASE_BUILDS
+debugcrash: libdebugcrash.dylib
+	cp $^ ../bin
+else
+debugcrash:
+endif
+
+if !RELEASE_BUILDS
+libdebugcrash.dylib: debugcrash.c
+	clang -g -shared -fpic -o $@ $^
+endif
+
 monostub.o: monostub.mm $(MONOSTUB_EXTRA_SOURCEFILES)
-	g++ -g $(HYBRID_SUSPEND_ABORT) -c -Wall -m64 -o $@ monostub.mm
+	g++ -g $(HYBRID_SUSPEND_ABORT) $(ENABLE_DEBUG_CRASHER) -c -Wall -m64 -o $@ monostub.mm
 
 monostub-nogui.o: monostub.mm $(MONOSTUB_EXTRA_SOURCEFILES)
 	g++ -g $(HYBRID_SUSPEND_ABORT) -DNOGUI -c -Wall -m64 -o $@ monostub.mm
@@ -160,4 +172,4 @@ app: monostub monostub-test
 	@echo ""
 	@rm -f missing-stuff
 
-.PHONY: app dmg
+.PHONY: app dmg debugcrash

main/build/MacOSX/debugcrash.c

@@ -0,0 +1,6 @@
+void debug_trigger_sigsegv()
+{
+	void *p = (void*)0x12345;
+	*(int *)p = 0;
+}
+

main/src/addins/PerformanceDiagnostics/PerformanceDiagnostics/Commands.cs

@@ -201,5 +201,16 @@ protected override void Run ()
 			Thread.Sleep (TimeSpan.FromMinutes(2));
 		}
 	}
+
+	class InduceNativePInvokeCrashHandler : CommandHandler
+	{
+		[DllImport ("libdebugcrash.dylib")]
+		static extern void debug_trigger_sigsegv ();
+
+		protected override void Run ()
+		{
+			debug_trigger_sigsegv ();
+		}
+	}
 #endif
 }

main/src/addins/PerformanceDiagnostics/PerformanceDiagnostics/Properties/ReliabilityDiagnostics.addin.xml

@@ -15,6 +15,9 @@
 		<Command id="PerformanceDiagnosticsAddIn.InduceHang"
 			defaultHandler="PerformanceDiagnosticsAddIn.InduceHangHandler"
 			_label="Induce Hang" />
+		<Command id="PerformanceDiagnosticsAddIn.InduceNativePInvokeCrash"
+			defaultHandler="PerformanceDiagnosticsAddIn.InduceNativePInvokeCrashHandler"
+			_label="Induce PInvoke Crash" />
 
 	</Extension>
 	<Extension path="/MonoDevelop/Ide/MainMenu/Help">
@@ -24,6 +27,7 @@
 			<CommandItem id="PerformanceDiagnosticsAddIn.InduceManagedCrash" />
 			<CommandItem id="PerformanceDiagnosticsAddIn.InduceNativeCrash" />
 			<CommandItem id="PerformanceDiagnosticsAddIn.InduceHang" />
+			<CommandItem id="PerformanceDiagnosticsAddIn.InduceNativePInvokeCrash" />
 
 		</ItemSet>
 	</Extension>