e0f7e196f2
If exception support is disabled in IDF, and libstdc++ tries to throw an exception, it will call __cxa_allocate_exception which is replaced with abort in IDF. We have a dramatically size reduction of the RO-section in binary when using '__throw_'-stubs in GCC5 In the case of using GCC8, we are faced with 'multiple definition' errors when using '__throw_'-stubs. Good that we don't have the size problem due to gcc8
85 lines
3.9 KiB
C++
85 lines
3.9 KiB
C++
#include <cstdlib>
|
|
#include <cstdio>
|
|
#include <exception>
|
|
#include <bits/functexcept.h>
|
|
#include <sdkconfig.h>
|
|
|
|
#ifndef CONFIG_CXX_EXCEPTIONS
|
|
|
|
const char *FATAL_EXCEPTION = "Fatal C++ exception: ";
|
|
|
|
extern "C" void __cxx_fatal_exception(void)
|
|
{
|
|
abort();
|
|
}
|
|
|
|
extern "C" bool __cxx_fatal_exception_bool(void)
|
|
{
|
|
__cxx_fatal_exception();
|
|
return false;
|
|
}
|
|
|
|
extern "C" void __cxx_fatal_exception_message(const char *msg)
|
|
{
|
|
printf("%s%s\n", FATAL_EXCEPTION, msg);
|
|
abort();
|
|
}
|
|
|
|
extern "C" void __cxx_fatal_exception_message_va(const char *msg, ...)
|
|
{
|
|
__cxx_fatal_exception_message(msg);
|
|
}
|
|
|
|
extern "C" void __cxx_fatal_exception_int(int i)
|
|
{
|
|
printf("%s (%d)\n", FATAL_EXCEPTION, i);
|
|
abort();
|
|
}
|
|
|
|
#if !GCC_NOT_5_2_0
|
|
void std::__throw_bad_exception(void) __attribute__((alias("__cxx_fatal_exception")));
|
|
void std::__throw_bad_alloc(void) __attribute__((alias("__cxx_fatal_exception")));
|
|
void std::__throw_bad_cast(void) __attribute__((alias("__cxx_fatal_exception")));
|
|
void std::__throw_bad_typeid(void) __attribute__((alias("__cxx_fatal_exception")));
|
|
void std::__throw_logic_error(const char*) __attribute__((alias("__cxx_fatal_exception_message")));
|
|
void std::__throw_domain_error(const char*) __attribute__((alias("__cxx_fatal_exception_message")));
|
|
void std::__throw_invalid_argument(const char*) __attribute__((alias("__cxx_fatal_exception_message")));
|
|
void std::__throw_length_error(const char*) __attribute__((alias("__cxx_fatal_exception_message")));
|
|
void std::__throw_out_of_range(const char*) __attribute__((alias("__cxx_fatal_exception_message")));
|
|
void std::__throw_out_of_range_fmt(const char*, ...) __attribute__((alias("__cxx_fatal_exception_message_va")));
|
|
void std::__throw_runtime_error(const char*) __attribute__((alias("__cxx_fatal_exception_message")));
|
|
void std::__throw_range_error(const char*) __attribute__((alias("__cxx_fatal_exception_message")));
|
|
void std::__throw_overflow_error(const char*) __attribute__((alias("__cxx_fatal_exception_message")));
|
|
void std::__throw_underflow_error(const char*) __attribute__((alias("__cxx_fatal_exception_message")));
|
|
void std::__throw_ios_failure(const char*) __attribute__((alias("__cxx_fatal_exception_message")));
|
|
void std::__throw_system_error(int) __attribute__((alias("__cxx_fatal_exception_int")));
|
|
void std::__throw_bad_function_call(void) __attribute__((alias("__cxx_fatal_exception")));
|
|
void std::__throw_future_error(int) __attribute__((alias("__cxx_fatal_exception_int")));
|
|
#endif
|
|
|
|
/* The following definitions are needed because libstdc++ is also compiled with
|
|
__throw_exception_again defined to throw, and some other exception code in a few places.
|
|
|
|
This cause exception handler code to be emitted in the library even though it's mostly
|
|
unreachable (as any libstdc++ "throw" will first call one of the above stubs, which will abort).
|
|
|
|
If these are left out, a bunch of unwanted exception handler code is linked.
|
|
|
|
Note: these function prototypes are not correct.
|
|
*/
|
|
|
|
extern "C" void __cxa_allocate_exception(void) __attribute__((alias("__cxx_fatal_exception")));
|
|
extern "C" void __cxa_allocate_dependent_exception(void) __attribute__((alias("__cxx_fatal_exception")));
|
|
extern "C" void __cxa_begin_catch(void) __attribute__((alias("__cxx_fatal_exception")));
|
|
extern "C" void __cxa_end_catch(void) __attribute__((alias("__cxx_fatal_exception")));
|
|
extern "C" void __cxa_get_exception_ptr(void) __attribute__((alias("__cxx_fatal_exception")));
|
|
extern "C" void __cxa_free_exception(void) __attribute__((alias("__cxx_fatal_exception")));
|
|
extern "C" void __cxa_free_dependent_exception(void) __attribute__((alias("__cxx_fatal_exception")));
|
|
extern "C" void __cxa_rethrow(void) __attribute__((alias("__cxx_fatal_exception")));
|
|
extern "C" void __cxa_throw(void) __attribute__((alias("__cxx_fatal_exception")));
|
|
extern "C" void __cxa_call_terminate(void) __attribute__((alias("__cxx_fatal_exception")));
|
|
|
|
bool std::uncaught_exception() __attribute__((alias("__cxx_fatal_exception_bool")));
|
|
|
|
#endif // CONFIG_CXX_EXCEPTIONS
|