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9c7477ef34
Fixes https://github.com/espressif/esp-idf/issues/1072 (Additional 20KB is still used if C++ exception support is enabled in menuconfig.)
88 lines
3.5 KiB
C++
88 lines
3.5 KiB
C++
#include <cstdlib>
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#include <cstdio>
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#include <exception>
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#include <bits/functexcept.h>
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#include <sdkconfig.h>
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#ifndef CONFIG_CXX_EXCEPTIONS
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const char *FATAL_EXCEPTION = "Fatal C++ exception: ";
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extern "C" void __cxx_fatal_exception(void)
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{
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abort();
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}
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extern "C" void __cxx_fatal_exception_message(const char *msg)
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{
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printf("%s%s\n", FATAL_EXCEPTION, msg);
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abort();
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}
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extern "C" void __cxx_fatal_exception_int(int i)
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{
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printf("%s (%d)\n", FATAL_EXCEPTION, i);
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abort();
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}
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void std::__throw_bad_exception(void) __attribute__((alias("__cxx_fatal_exception")));
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void std::__throw_bad_alloc(void) __attribute__((alias("__cxx_fatal_exception")));
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void std::__throw_bad_cast(void) __attribute__((alias("__cxx_fatal_exception")));
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void std::__throw_bad_typeid(void) __attribute__((alias("__cxx_fatal_exception")));
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void std::__throw_logic_error(const char*) __attribute__((alias("__cxx_fatal_exception_message")));
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void std::__throw_domain_error(const char*) __attribute__((alias("__cxx_fatal_exception_message")));
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void std::__throw_invalid_argument(const char*) __attribute__((alias("__cxx_fatal_exception_message")));
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void std::__throw_length_error(const char*) __attribute__((alias("__cxx_fatal_exception_message")));
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void std::__throw_out_of_range(const char*) __attribute__((alias("__cxx_fatal_exception_message")));
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void std::__throw_out_of_range_fmt(const char*, ...) __attribute__((alias("__cxx_fatal_exception_message")));
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void std::__throw_runtime_error(const char*) __attribute__((alias("__cxx_fatal_exception_message")));
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void std::__throw_range_error(const char*) __attribute__((alias("__cxx_fatal_exception_message")));
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void std::__throw_overflow_error(const char*) __attribute__((alias("__cxx_fatal_exception_message")));
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void std::__throw_underflow_error(const char*) __attribute__((alias("__cxx_fatal_exception_message")));
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void std::__throw_ios_failure(const char*) __attribute__((alias("__cxx_fatal_exception_message")));
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void std::__throw_system_error(int) __attribute__((alias("__cxx_fatal_exception_int")));
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void std::__throw_bad_function_call(void) __attribute__((alias("__cxx_fatal_exception")));
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void std::__throw_future_error(int) __attribute__((alias("__cxx_fatal_exception_int")));
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/* The following definitions are needed because libstdc++ is also compiled with
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__throw_exception_again defined to throw, and some other exception code in a few places.
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This cause exception handler code to be emitted in the library even though it's mostly
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unreachable (as any libstdc++ "throw" will first call one of the above stubs, which will abort).
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If these are left out, a bunch of unwanted exception handler code is linked.
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Note: these function prototypes are not correct.
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*/
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extern "C" void __cxa_allocate_exception(void) __attribute__((alias("__cxx_fatal_exception")));
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extern "C" void __cxa_begin_catch(void) __attribute__((alias("__cxx_fatal_exception")));
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extern "C" void __cxa_end_catch(void) __attribute__((alias("__cxx_fatal_exception")));
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extern "C" void __cxa_get_exception_ptr(void) __attribute__((alias("__cxx_fatal_exception")));
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extern "C" void __cxa_free_exception(void) __attribute__((alias("__cxx_fatal_exception")));
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extern "C" void __cxa_rethrow(void) __attribute__((alias("__cxx_fatal_exception")));
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extern "C" void __cxa_throw(void) __attribute__((alias("__cxx_fatal_exception")));
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extern "C" void __cxa_call_terminate(void) __attribute__((alias("__cxx_fatal_exception")));
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bool std::uncaught_exception() __attribute__((alias("__cxx_fatal_exception")));
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#endif // CONFIG_CXX_EXCEPTIONS
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