From: Rich Felker <dalias@libc.org>
To: musl@lists.openwall.com
Cc: Pawel Dziepak <pdziepak@quarnos.org>
Subject: Re: [PATCH] add definition of max_align_t to stddef.h
Date: Thu, 8 May 2014 10:11:58 -0400 [thread overview]
Message-ID: <20140508141158.GH26358@brightrain.aerifal.cx> (raw)
In-Reply-To: <20140508105721.GR12324@port70.net>
On Thu, May 08, 2014 at 12:57:22PM +0200, Szabolcs Nagy wrote:
> > As I see it, we have a choice whether to use the "8" definition on
> > i386 or use the natural definition, which would yield "4" on i386.
> > This is not an ABI issue (it does not affect the ability to use
> > glibc-built object files/binaries/shared libraries with musl, nor the
> > C++ name mangling ABI) but an API issue.
>
> assuming max_align_t does not appear in a function prototype
As long as the union tag and size are the same, it should not matter.
I don't think alignments affect i386 argument passing convention at
all. Certainly the traditional va_arg macro does not account for them;
it just assumes every argument is aligned to 4 bytes.
Rich
next prev parent reply other threads:[~2014-05-08 14:11 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-05-06 10:35 Paweł Dziepak
2014-05-07 3:13 ` Rich Felker
2014-05-07 4:14 ` Luca Barbato
2014-05-07 4:29 ` Rich Felker
2014-05-07 5:12 ` Luca Barbato
2014-05-07 22:48 ` Rich Felker
2014-05-08 12:07 ` Luca Barbato
2014-05-08 14:25 ` Rich Felker
2014-05-07 9:28 ` Paweł Dziepak
2014-05-07 23:07 ` Rich Felker
2014-05-08 10:57 ` Szabolcs Nagy
2014-05-08 14:11 ` Rich Felker [this message]
2014-05-08 16:41 ` Paweł Dziepak
2014-05-08 17:41 ` Rich Felker
2014-05-08 18:45 ` Jens Gustedt
2014-05-08 19:11 ` Paweł Dziepak
2014-05-08 19:22 ` Jens Gustedt
2014-05-08 19:45 ` Paweł Dziepak
2014-05-08 20:02 ` Rich Felker
2014-05-08 20:45 ` Paweł Dziepak
-- strict thread matches above, loose matches on Subject: below --
2014-04-30 20:23 Pawel Dziepak
2014-04-30 21:42 ` Szabolcs Nagy
2014-04-30 22:43 ` Rich Felker
2014-05-04 2:52 ` Paweł Dziepak
2014-05-04 11:42 ` Paweł Dziepak
2014-05-07 5:02 ` Jens Gustedt
2014-05-04 2:36 ` Paweł Dziepak
2014-05-04 5:02 ` Rich Felker
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