jyknight wrote:
I think we can check whether it's been overridden more easily using an asm
alias like this (when libc++ is built under -fno-exceptions):
```
#include <cstdlib>
#include <new>
__attribute__((weak)) void* operator new(std::size_t size) {
void* mem = malloc(size);
if (!mem) abort();
return mem;
}
// TODO: ifdef for MSVC mangling.
static void* original_operator_new(std::size_t size)
__attribute__((alias(__USER_LABEL_PREFIX__ "_Znwm")));
__attribute__((weak)) void* operator new(std::size_t size, std::nothrow_t)
noexcept {
if (static_cast<void*(*)(std::size_t)>(&::operator new) !=
original_operator_new)
abort();
return malloc(size);
}
```
https://github.com/llvm/llvm-project/pull/69498
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