Linux: implement throwing exception from signal handlers

Author: eagleivg

CMakeLists.txt

@@ -65,7 +65,7 @@ if(CMAKE_CXX_COMPILER_ID MATCHES "GNU")
     endif()
 endif()
 
-set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fpermissive --std=c++17 -Wno-attributes -pipe -fvisibility=hidden -Wl,--no-undefined")
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fpermissive --std=c++17 -Wno-attributes -pipe -fvisibility=hidden -Wl,--no-undefined -fnon-call-exceptions")
 #set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fpermissive") This is for the future versions
 #set(CMAKE_CXX_STANDARD 14) #Otherwise adds -std=gnu++11 and breaks successful building
 #set(CMAKE_CXX_STANDARD_REQUIRED ON)

src/xrCore/xrDebug.cpp

@@ -670,7 +670,7 @@ void xrDebug::SetupExceptionHandler()
 #else
     const auto minidumpFlags = MiniDumpWithDataSegs | MiniDumpWithIndirectlyReferencedMemory;
 #endif
-    
+
     BT_SetDumpType(minidumpFlags);
     //BT_SetSupportEMail("[email protected]");
     BT_SetSupportEMail("[email protected]");
@@ -817,7 +817,7 @@ static void unexpected_handler() { handler_base("unexpected program termination"
 static void abort_handler(int signal) { handler_base("application is aborting"); }
 static void floating_point_handler(int signal) { handler_base("floating point error"); }
 static void illegal_instruction_handler(int signal) { handler_base("illegal instruction"); }
-static void segmentation_fault_handler(int signal) { handler_base("segmentation fault"); }
+void segmentation_fault_handler(int signal) { throw std::runtime_error("segfault"); }
 static void termination_handler(int signal) { handler_base("termination with exit code 3"); }
 
 void xrDebug::OnThreadSpawn()
@@ -843,12 +843,12 @@ void xrDebug::OnThreadSpawn()
     std::set_unexpected(_terminate);
 #endif
 #else //WINDOWS
+    signal(SIGSEGV, sigsegv_handler);
+    std::set_terminate(_terminate);
     signal(SIGABRT, abort_handler);
     signal(SIGFPE, floating_point_handler);
     signal(SIGILL, illegal_instruction_handler);
     signal(SIGINT, 0);
-    signal(SIGTERM, termination_handler);
-    signal(SIGSEGV, segmentation_fault_handler);
 #endif
 }