From: Liu Hao <lh_mouse@126.com>
To: libstdc++@gcc.gnu.org, GCC Patches <gcc-patches@gcc.gnu.org>
Subject: Re: Fwd: libstdc++: Attempt to resolve PR83562
Date: Fri, 6 Nov 2020 16:23:28 +0800 [thread overview]
Message-ID: <e5df157c-5d36-ee18-925e-a79a12f49331@126.com> (raw)
In-Reply-To: <99113dab-c57d-cc83-3b5a-588378fe671c@126.com>
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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\x0f
>
>
--
Best regards,
LH_Mouse
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next prev parent reply other threads:[~2020-11-06 8:23 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <3d535e7a-95dc-050f-b1d6-9802436cc669@126.com>
2020-10-29 7:56 ` Liu Hao
2020-11-06 8:23 ` Liu Hao [this message]
2020-11-06 8:34 ` Martin Storsjö
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