From: Eli Zaretskii <eliz@gnu.org>
To: Dmitry Antipov <dmantipov@yandex.ru>, Ken Brown <kbrown@cornell.edu>
Cc: emacs-devel@gnu.org
Subject: Re: MS-Windows tester wanted for trunk
Date: Tue, 16 Sep 2014 18:58:50 +0300 [thread overview]
Message-ID: <83bnqf4kw5.fsf@gnu.org> (raw)
In-Reply-To: <5418562C.9040501@yandex.ru>
> Date: Tue, 16 Sep 2014 19:24:28 +0400
> From: Dmitry Antipov <dmantipov@yandex.ru>
> CC: emacs-devel@gnu.org
>
> On 09/16/2014 06:31 PM, Eli Zaretskii wrote:
>
> > So the conclusion is that, at least for 32-bit Windows builds, the
> > alignment of union Aligned_Cons is not enough to produce the effect
> > you want, and additional measures are necessary.
> >
> > I don't expect this to be a problem in 64-bit Windows builds, because
> > there Windows does enforce 16-byte alignment of the stack. But, as I
> > already said, I didn't test that.
>
> Do we have the same issue with alloca?
No, not as long as our functions are called only by our functions, not
as callbacks from Windows DLLs.
> If not, whether it will be simpler to define scoped_cons to
> local_cons for 32-bit Windows builds?
You'll have to educate me about the difference, sorry. I can try
whatever you want.
> > This could be an issue in other x86 32-bit builds (probably not on
> > GNU/Linux, though, and not if GCC is the compiler), because AFAIK the
> > x86 ABI specifies a 4-byte stack alignment.
>
> Hm...I'll try 32-bit builds with clang and icc. BTW, both of them mimics
> GCC quite well, so I will be very surprised with an issues here.
I think the 32-bit Cygwin-w32 build might also be affected, as it uses
the same w32font.c code. Ken, can you try that, please?
next prev parent reply other threads:[~2014-09-16 15:58 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-16 8:50 MS-Windows tester wanted for trunk Dmitry Antipov
2014-09-16 13:10 ` Chris Zheng
2014-09-16 14:48 ` Eli Zaretskii
2014-09-16 14:54 ` Chris Zheng
2014-09-16 14:56 ` Chris Zheng
2014-09-16 15:10 ` Eli Zaretskii
2014-09-17 9:28 ` Chris Zheng
2014-09-17 10:03 ` Eli Zaretskii
2014-09-17 16:56 ` Clang ? [Was: Re: MS-Windows tester wanted for trunk] Dmitry Antipov
2014-09-18 1:05 ` Paul Eggert
2014-09-24 14:45 ` Dmitry Antipov
2014-09-16 14:31 ` MS-Windows tester wanted for trunk Eli Zaretskii
2014-09-16 15:24 ` Dmitry Antipov
2014-09-16 15:58 ` Eli Zaretskii [this message]
2014-09-16 20:40 ` Ken Brown
2014-09-16 15:46 ` Dmitry Antipov
2014-09-16 16:03 ` Eli Zaretskii
2014-09-16 14:38 ` Eli Zaretskii
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