From: "David S. Miller" <davem@redhat.com>
To: ak@suse.de
Cc: jun.nakajima@intel.com, torvalds@transmeta.com,
linux-kernel@vger.kernel.org, asit.k.mallick@intel.com,
sunil.saxena@intel.com
Subject: Re: [PATCH] fixes for building kernel using Intel compiler
Date: Fri, 18 Oct 2002 17:15:04 -0700 (PDT) [thread overview]
Message-ID: <20021018.171504.96943359.davem@redhat.com> (raw)
In-Reply-To: <p73u1jjnvea.fsf@oldwotan.suse.de>
From: Andi Kleen <ak@suse.de>
Date: 19 Oct 2002 02:07:41 +0200
> -/* Enable FXSR and company _before_ testing for FP problems. */
> - /*
> - * Verify that the FXSAVE/FXRSTOR data will be 16-byte aligned.
> - */
> - if (offsetof(struct task_struct, thread.i387.fxsave) & 15) {
> - extern void __buggy_fxsr_alignment(void);
> - __buggy_fxsr_alignment();
> - }
Why does that not work? IMHO it is legal ISO-C
Depending upon the compiler to optimize away the non-existent function
reference is not ISO-C :-) Although the fact the Intel compiler isn't
doing this is amusing.
next prev parent reply other threads:[~2002-10-19 0:16 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <F2DBA543B89AD51184B600508B68D4000E6ADE5B@fmsmsx103.fm.intel.com.suse.lists.linux.kernel>
2002-10-19 0:07 ` Andi Kleen
2002-10-19 0:15 ` David S. Miller [this message]
2002-10-19 0:25 ` Andi Kleen
[not found] <A9EA4AD6F6B9D511BBED00508B66C69A04B37747@fmsmsx111.fm.intel.com>
2002-10-22 22:41 ` Suresh Siddha
2002-10-21 18:28 Ulrich Weigand
-- strict thread matches above, loose matches on Subject: below --
2002-10-19 2:17 Nakajima, Jun
2002-10-19 2:29 ` Andi Kleen
2002-10-21 9:21 ` Pavel Machek
2002-10-19 1:16 Nakajima, Jun
2002-10-19 0:45 Nakajima, Jun
2002-10-19 1:02 ` Andi Kleen
2002-10-18 23:48 Nakajima, Jun
2002-10-19 0:08 ` Greg KH
2002-10-21 12:48 ` Alan Cox
2002-10-21 15:56 ` Nakajima, Jun
2002-10-21 17:06 ` Brian Gerst
2002-10-22 6:09 ` Greg KH
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