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Date: Fri, 21 Oct 2022 12:34:12 +0000
From: i.nixman@autistici.org
To: LIU Hao <lh_mouse@126.com>
Cc: Wakely <jwakely@redhat.com>, libstdc++@gcc.gnu.org,
 gcc-patches@gcc.gnu.org, Eric Botcazou <ebotcazou@adacore.com>
Subject: Re: Adding a new thread model to GCC
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On 2022-10-21 12:19, LIU Hao wrote:
> 在 2022/10/21 19:54, i.nixman@autistici.org 写道:

<skip>

> Jacek Caban, who is also a mingw-w64 developer, expressed the same
> idea a few days ago.
> 
> While integrating mcfgthread into gcc is practically possible, my 
> concerns are:
> 
>   * GCC never provides a threading library. It always depends on glibc,
>     musl, win32 APIs, winpthreads, etc.

I think you didn't understand me.

I mean not to integrate your library into GCC as real separate library.
I mean to do changes on 
config/i386/gthr-win32.h+config/i386/gthr-win32.c+config/i386/gthr-win32-cond.c 
etc using your code to have an implementation of everything needed for 
C/C++ threads on Windows.


>   * Tampering with the win32 thread model in a dramatic way is not
>     acceptiable due to backwards compatibility. There are distributions
>     that have win32 as the default thread model, such as Debian.
> 
>   * I personally need more control for future development, for example,
>     re-implement pthread or adding libcxx support, which doesn't fit in
>     GCC.

got it...
anyway it seems logical to me the way I proposed :)


best!