feat(cxx): get rid of _Unwind_SetEnableExceptionFdeSorting

components/cxx/CMakeLists.txt

@@ -12,7 +12,6 @@ idf_component_register(SRCS "cxx_exception_stubs.cpp"
 
 if(NOT CONFIG_CXX_EXCEPTIONS)
     set(WRAP_FUNCTIONS
-        _Unwind_SetEnableExceptionFdeSorting
         __register_frame_info_bases
         __register_frame_info
         __register_frame

components/cxx/cxx_exception_stubs.cpp

@@ -35,11 +35,6 @@ static T abort_return()
 }
 
 // unwind-dw2-fde.o
-extern "C" void __wrap__Unwind_SetEnableExceptionFdeSorting(unsigned char enable)
-{
-    abort();
-}
-
 extern "C" void __wrap___register_frame_info_bases(const void *begin, struct object *ob, void *tbase, void *dbase)
 {
     abort();

components/cxx/cxx_init.cpp

@@ -12,18 +12,6 @@ namespace {
 const char *TAG = "C++ init";
 }
 
-#ifdef CONFIG_COMPILER_CXX_EXCEPTIONS
-// workaround for C++ exception large memory allocation
-extern "C" void _Unwind_SetEnableExceptionFdeSorting(unsigned char enable);
-
-ESP_SYSTEM_INIT_FN(init_cxx_exceptions, SECONDARY, BIT(0), 205)
-{
-    ESP_EARLY_LOGD(TAG, "Setting C++ exception workarounds.");
-    _Unwind_SetEnableExceptionFdeSorting(0);
-    return ESP_OK;
-}
-#endif // CONFIG_COMPILER_CXX_EXCEPTIONS
-
 /**
  * This function overwrites the same function of libsupc++ (part of libstdc++).
  * Consequently, libsupc++ will then follow our configured exception emergency pool size.

components/esp_system/system_init_fn.txt

@@ -87,7 +87,6 @@ SECONDARY: 140: init_dbg_stubs in components/app_trace/debug_stubs.c on BIT(0)
 SECONDARY: 201: init_pm in components/esp_system/startup_funcs.c on BIT(0)
 SECONDARY: 203: init_apb_dma in components/esp_system/startup_funcs.c on BIT(0)
 SECONDARY: 204: init_coexist in components/esp_system/startup_funcs.c on BIT(0)
-SECONDARY: 205: init_cxx_exceptions in components/cxx/cxx_init.cpp on BIT(0)
 
 # usb_console needs to create an esp_timer at startup.
 # This can be done only after esp_timer initialization (esp_timer_init_os).