impr: Only add stacktrace to exceptions thrown in main thread

lib/trace/include/hex/trace/exceptions.hpp

@@ -7,5 +7,6 @@
 namespace hex::trace {
 
     std::optional<StackTraceResult> getLastExceptionStackTrace();
+    void enableExceptionCaptureForCurrentThread();
 
 }

lib/trace/source/exceptions.cpp

@@ -3,6 +3,8 @@
 namespace hex::trace {
 
     static std::optional<StackTraceResult> s_lastExceptionStackTrace;
+    static thread_local bool s_threadExceptionCaptureEnabled = false;
+
     std::optional<StackTraceResult> getLastExceptionStackTrace() {
         if (!s_lastExceptionStackTrace.has_value())
             return std::nullopt;
@@ -13,6 +15,10 @@ namespace hex::trace {
         return result;
     }
 
+    void enableExceptionCaptureForCurrentThread() {
+        s_threadExceptionCaptureEnabled = true;
+    }
+
 }
 
 #if defined(HEX_WRAP_CXA_THROW)
@@ -21,7 +27,9 @@ namespace hex::trace {
 
         [[noreturn]] void __real___cxa_throw(void* thrownException, void* type, void (*destructor)(void*));
         [[noreturn]] void __wrap___cxa_throw(void* thrownException, void* type, void (*destructor)(void*)) {
-            hex::trace::s_lastExceptionStackTrace = hex::trace::getStackTrace();
+            if (hex::trace::s_threadExceptionCaptureEnabled)
+                hex::trace::s_lastExceptionStackTrace = hex::trace::getStackTrace();
+
             __real___cxa_throw(thrownException, type, destructor);
         }
 

main/gui/source/main.cpp

@@ -12,6 +12,7 @@
 #include <hex/api/task_manager.hpp>
 #include <hex/api/plugin_manager.hpp>
 #include <hex/helpers/utils.hpp>
+#include <hex/trace/exceptions.hpp>
 
 namespace hex::init {
 
@@ -41,17 +42,21 @@ int main(int argc, char **argv) {
     // Setup crash handlers right away to catch crashes as early as possible
     crash::setupCrashHandlers();
 
+    // Enable exception tracing on the main thread
+    trace::enableExceptionCaptureForCurrentThread();
+
     // Run platform-specific initialization code
     Window::initNative();
 
     // Setup messaging system to allow sending commands to the main ImHex instance
-    hex::messaging::setupMessaging();
+    messaging::setupMessaging();
 
     // Handle command line arguments if any have been passed
     if (argc > 1) {
         init::runCommandLine(argc, argv);
     }
 
+
     // Log some system information to aid debugging when users share their logs
     log::info("Welcome to ImHex {}!", ImHexApi::System::getImHexVersion().get());
     log::info("Compiled using commit {}@{}", ImHexApi::System::getCommitBranch(), ImHexApi::System::getCommitHash());