recover from exception on iOS and macOS using signals and log the stacktrace

PanoPainter/AppDelegate.m

@@ -11,22 +11,6 @@
 #include "app.h"
 #include <WTSonarPenDriver.h>
 
-void global_exception_handler(NSException* e)
-{
-    if (App::I.canvas && App::I.canvas->m_canvas)
-        App::I.canvas->m_canvas->project_save_thread(App::I.data_path + "/recovery.ppi");
-    
-    std::terminate();
-}
-
-void global_signal_handler(int e)
-{
-    if (App::I.canvas && App::I.canvas->m_canvas)
-        App::I.canvas->m_canvas->project_save_thread(App::I.data_path + "/recovery.ppi");
-
-    std::terminate();
-}
-
 @interface AppDelegate () {
     GameViewController* view;
     WTSonarPenDriver* sonarpen_driver;
@@ -68,8 +52,6 @@ void global_signal_handler(int e)
 }
 
 - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
-    // Override point for customization after application launch.
-    NSSetUncaughtExceptionHandler(&global_exception_handler);
 //    sonarpen_driver = [[WTSonarPenDriver alloc] initWithApplication:application];
 //    [sonarpen_driver start];
 //    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(penStatusChanged) name:WTSonarPenDriverStateChangedNotification object:nil];

PanoPainter/main.cpp

@@ -8,8 +8,10 @@
 
 #import <UIKit/UIKit.h>
 #import "AppDelegate.h"
+#include "objc_utils.h"
 
 int main(int argc, char * argv[]) {
+    install_global_handlers();
     @autoreleasepool {
         return UIApplicationMain(argc, argv, nil, NSStringFromClass([AppDelegate class]));
     }