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Tentatively apply https://github.com/libcxxrt/libcxxrt/pull/27
This marks __cxa_allocate_exception, __cxa_free_exception and
__cxa_init_primary_exception noexcept, to ensure compatibility with
libc++'s declarations.
PR: 276104
MFC after: 1 month
(cherry picked from commit 3fb2e04579
)
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@ -204,12 +204,12 @@ __cxa_eh_globals *__cxa_get_globals_fast(void);
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std::type_info * __cxa_current_exception_type();
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void *__cxa_allocate_exception(size_t thrown_size);
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void *__cxa_allocate_exception(size_t thrown_size) throw();
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void __cxa_free_exception(void* thrown_exception);
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void __cxa_free_exception(void* thrown_exception) throw();
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__cxa_exception *__cxa_init_primary_exception(
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void *object, std::type_info* tinfo, void (*dest)(void *));
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void *object, std::type_info* tinfo, void (*dest)(void *)) throw();
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/**
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* Throws an exception returned by __cxa_current_primary_exception(). This
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@ -121,7 +121,7 @@ static inline _Unwind_Reason_Code continueUnwinding(struct _Unwind_Exception *ex
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}
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extern "C" void __cxa_free_exception(void *thrown_exception);
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extern "C" void __cxa_free_exception(void *thrown_exception) throw();
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extern "C" void __cxa_free_dependent_exception(void *thrown_exception);
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extern "C" void* __dynamic_cast(const void *sub,
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const __class_type_info *src,
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@ -611,7 +611,7 @@ static void free_exception(char *e)
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* emergency buffer if malloc() fails, and may block if there are no such
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* buffers available.
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*/
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extern "C" void *__cxa_allocate_exception(size_t thrown_size)
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extern "C" void *__cxa_allocate_exception(size_t thrown_size) throw()
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{
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size_t size = thrown_size + sizeof(__cxa_exception);
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char *buffer = alloc_or_die(size);
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@ -633,7 +633,7 @@ extern "C" void *__cxa_allocate_dependent_exception(void)
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* In this implementation, it is also called by __cxa_end_catch() and during
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* thread cleanup.
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*/
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extern "C" void __cxa_free_exception(void *thrown_exception)
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extern "C" void __cxa_free_exception(void *thrown_exception) throw()
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{
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__cxa_exception *ex = reinterpret_cast<__cxa_exception*>(thrown_exception) - 1;
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// Free the object that was thrown, calling its destructor
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@ -794,7 +794,7 @@ static void throw_exception(__cxa_exception *ex)
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}
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extern "C" __cxa_exception *__cxa_init_primary_exception(
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void *object, std::type_info* tinfo, void (*dest)(void *)) {
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void *object, std::type_info* tinfo, void (*dest)(void *)) throw() {
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__cxa_exception *ex = reinterpret_cast<__cxa_exception*>(object) - 1;
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ex->referenceCount = 0;
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