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Add a stub __cxa_free_exception to cxa_noexception.cpp #19183

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Merged
dschuff merged 1 commit into from
Apr 15, 2023
Merged

Add a stub __cxa_free_exception to cxa_noexception.cpp #19183

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16 changes: 16 additions & 0 deletions system/lib/libcxxabi/src/cxa_noexception.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -58,6 +58,22 @@ void *__cxa_allocate_exception(size_t thrown_size) _NOEXCEPT {
char* allocation = (char*)malloc(thrown_size + sizeof(__cxa_exception));
return allocation + sizeof(__cxa_exception);
}

static
inline
__cxa_exception*
cxa_exception_from_thrown_object(void* thrown_object)
{
return static_cast<__cxa_exception*>(thrown_object) - 1;
}

// Free a __cxa_exception object allocated with __cxa_allocate_exception.
void __cxa_free_exception(void *thrown_object) _NOEXCEPT {
// Compute the size of the padding before the header.
char *raw_buffer =
((char *)cxa_exception_from_thrown_object(thrown_object));
free((void *)raw_buffer);
}
#endif

} // extern "C"
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