Fwd: libstdc++: Attempt to resolve PR83562

[Liu Hao]

Ping?






在 2020/10/29 下午3:56, Liu Hao 写道:
> I forward it here for comments.
> 
> Basing on the behavior of both GCC and Clang, `__cxa_thread_atexit` is used to register the
> destructor of thread_local objects directly, suggesting the first parameter should have `__thiscall`
> convention.
> 
> libstdc++ used the default `__cdecl` convention and caused crashes on 1686-w64-mingw32 (see
> PR83562). But to my surprise, libcxxabi uses `__cdecl` too [1], but I haven't heard any of relevant
> reports so far.
> 
> Original patch is attached in case you can't find it in gcc-patches.
> 
> 
> [1]
> https://github.com/llvm/llvm-project/blob/97b351a827677ebbedc10bfbce8ef8844c246553/libcxxabi/src/cxa_thread_atexit.cpp#L22
> 
> 



-- 
Best regards,
LH_Mouse

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