diff --git a/components/cxx/test/test_cxx.cpp b/components/cxx/test/test_cxx.cpp index 507b726bd3..be43563aaa 100644 --- a/components/cxx/test/test_cxx.cpp +++ b/components/cxx/test/test_cxx.cpp @@ -44,31 +44,161 @@ TEST_CASE("can use std::vector", "[cxx]") TEST_ASSERT_EQUAL(51, std::accumulate(std::begin(v), std::end(v), 0)); } +/* Note: When first exception (in system) is thrown this test produces memory leaks report (~300 bytes): + - 392 bytes (can vary) as libunwind allocates memory to keep stack frames info to handle exceptions. + This info is kept until global destructors are called by __do_global_dtors_aux() + - 8 bytes are allocated by __cxa_get_globals() to keep __cxa_eh_globals + - 16 bytes are allocated by pthread_setspecific() which is called by __cxa_get_globals() to init TLS var for __cxa_eh_globals + - 88 bytes are allocated by pthread_setspecific() to init internal lock + - some more memory... + */ #ifdef CONFIG_COMPILER_CXX_EXCEPTIONS -TEST_CASE("c++ exceptions work", "[cxx]") +TEST_CASE("c++ exceptions work", "[cxx] [exceptions] [leaks=300]") { - /* Note: When first exception (in system) is thrown this test produces memory leaks report (~500 bytes): - - 392 bytes (can vary) as libunwind allocates memory to keep stack frames info to handle exceptions. - This info is kept until global destructors are called by __do_global_dtors_aux() - - 8 bytes are allocated by __cxa_get_globals() to keep __cxa_eh_globals - - 16 bytes are allocated by pthread_setspecific() which is called by __cxa_get_globals() to init TLS var for __cxa_eh_globals - - 88 bytes are allocated by pthread_setspecific() to init internal lock - */ int thrown_value; - try - { + try { throw 20; - } - catch (int e) - { + } catch (int e) { thrown_value = e; } TEST_ASSERT_EQUAL(20, thrown_value); printf("OK?\n"); } -TEST_CASE("c++ exceptions emergency pool", "[cxx] [ignore]") +TEST_CASE("c++ bool exception", "[cxx] [exceptions] [leaks=300]") +{ + bool thrown_value = false; + try { + throw true; + } catch (bool e) { + thrown_value = e; + } + TEST_ASSERT_EQUAL(true, thrown_value); + printf("OK?\n"); +} + +TEST_CASE("c++ void exception", "[cxx] [exceptions] [leaks=300]") +{ + void* thrown_value = 0; + try { + throw (void*) 47; + } catch (void* e) { + thrown_value = e; + } + TEST_ASSERT_EQUAL(47, thrown_value); + printf("OK?\n"); +} + +TEST_CASE("c++ uint64_t exception", "[cxx] [exceptions] [leaks=300]") +{ + uint64_t thrown_value = 0; + try { + throw (uint64_t) 47; + } catch (uint64_t e) { + thrown_value = e; + } + TEST_ASSERT_EQUAL(47, thrown_value); + printf("OK?\n"); +} + +TEST_CASE("c++ char exception", "[cxx] [exceptions] [leaks=300]") +{ + char thrown_value = '0'; + try { + throw '/'; + } catch (char e) { + thrown_value = e; + } + TEST_ASSERT_EQUAL('/', thrown_value); + printf("OK?\n"); +} + +TEST_CASE("c++ wchar exception", "[cxx] [exceptions] [leaks=300]") +{ + wchar_t thrown_value = 0; + try { + throw (wchar_t) 47; + } catch (wchar_t e) { + thrown_value = e; + } + TEST_ASSERT_EQUAL((wchar_t) 47, thrown_value); + printf("OK?\n"); +} + +TEST_CASE("c++ float exception", "[cxx] [exceptions] [leaks=300]") +{ + float thrown_value = 0; + try { + throw 23.5f; + } catch (float e) { + thrown_value = e; + } + TEST_ASSERT_EQUAL(23.5, thrown_value); + printf("OK?\n"); +} + +TEST_CASE("c++ double exception", "[cxx] [exceptions] [leaks=300]") +{ + double thrown_value = 0; + try { + throw 23.5d; + } catch (double e) { + thrown_value = e; + } + TEST_ASSERT_EQUAL(23.5d, thrown_value); + printf("OK?\n"); +} + +TEST_CASE("c++ const char* exception", "[cxx] [exceptions] [leaks=300]") +{ + const char *thrown_value = 0; + try { + throw "Hi :)"; + } catch (const char *e) { + thrown_value = e; + } + TEST_ASSERT_EQUAL_STRING("Hi :)", thrown_value); + printf("OK?\n"); +} + +struct NonExcTypeThrowee { + int value; +public: + NonExcTypeThrowee(int value) : value(value) { } +}; + +TEST_CASE("c++ any class exception", "[cxx] [exceptions] [leaks=300]") +{ + int thrown_value = 0; + try { + throw NonExcTypeThrowee(47); + } catch (NonExcTypeThrowee &e) { + thrown_value = e.value; + } + TEST_ASSERT_EQUAL(47, thrown_value); + printf("OK?\n"); +} + +struct ExcTypeThrowee : public std::exception { + int value; +public: + ExcTypeThrowee(int value) : value(value) { } +}; + +TEST_CASE("c++ std::exception child", "[cxx] [exceptions] [leaks=300]") +{ + int thrown_value = 0; + try { + throw ExcTypeThrowee(47); + } catch (ExcTypeThrowee &e) { + thrown_value = e.value; + } + TEST_ASSERT_EQUAL(47, thrown_value); + printf("OK?\n"); +} + +TEST_CASE("c++ exceptions emergency pool", "[cxx] [exceptions] [ignore] [leaks=300]") { /* Note: When first exception (in system) is thrown this test produces memory leaks report (~500 bytes): - 392 bytes (can vary) as libunwind allocates memory to keep stack frames info to handle exceptions. diff --git a/components/esp32/cpu_start.c b/components/esp32/cpu_start.c index c87a7b61dc..81c380e7ba 100644 --- a/components/esp32/cpu_start.c +++ b/components/esp32/cpu_start.c @@ -108,6 +108,11 @@ struct object { long placeholder[ 10 ]; }; void __register_frame_info (const void *begin, struct object *ob); extern char __eh_frame[]; +#ifdef CONFIG_COMPILER_CXX_EXCEPTIONS +// workaround for C++ exception large memory allocation +void _Unwind_SetEnableExceptionFdeSorting(unsigned char enable); +#endif // CONFIG_COMPILER_CXX_EXCEPTIONS + //If CONFIG_SPIRAM_IGNORE_NOTFOUND is set and external RAM is not found or errors out on testing, this is set to false. static bool s_spiram_okay=true; @@ -382,6 +387,12 @@ void start_cpu0_default(void) assert(err == ESP_OK && "Failed to init pthread module!"); do_global_ctors(); + +#ifdef CONFIG_COMPILER_CXX_EXCEPTIONS + ESP_EARLY_LOGD(TAG, "Setting C++ exception workarounds."); + _Unwind_SetEnableExceptionFdeSorting(0); +#endif // CONFIG_COMPILER_CXX_EXCEPTIONS + #if CONFIG_ESP_INT_WDT esp_int_wdt_init(); //Initialize the interrupt watch dog for CPU0.