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Message-ID: <20120527230347.GK17860@port70.net>
Date: Mon, 28 May 2012 01:03:47 +0200
From: Szabolcs Nagy <nsz@...t70.net>
To: musl@...ts.openwall.com
Subject: Re: Possible ARM struct stat problem.
* Rich Felker <dalias@...ifal.cx> [2012-05-27 15:43:19 -0400]:
> On Sun, May 27, 2012 at 01:35:07PM -0500, Richard Pennington wrote:
> > Hi,
> >
> > I think a found a problem with the struct stat definition for the ARM. It
> > needed a bit more padding. I've attached a diff and wrote about it on my blog
> > if you'd like more information.
> >
> > http://ellcc.org/blog/?p=121
>
> This looks like a clang bug. Per the ABI, long long has 8-byte
> alignment on ARM. Thus, the structure definition musl has right now
> will give the right layout to match the ABI, and in fact it works
> perfectly when compiled with GCC.
>
> I'm not entirely opposed to putting the explicit padding in there,
> since this is an arch-specific structure anyway, but I think you
> should check your compiler. The same issue might come up elsewhere and
> might not be so easy to work around.
>
> Let me know what you find.
hm i have an /usr/include/asm-generic/stat.h (kernel header)
and it has a struct stat and struct stat64 and they seem
to have different padding than the musl definition
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