linux-kernel - RE: X86 fpu registers in a signal handler's ucontext

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Message-ID: <6D83E89737156549AEA25EF9ED712C5DE41B@DEFTHW99EK1MSX.ww902.siemens.net>
Date:	Thu, 2 May 2013 07:43:37 +0000
From:	"Warlich, Christof" <christof.warlich@...mens.com>
To:	richard -rw- weinberger <richard.weinberger@...il.com>
CC:	Mikael Pettersson <mikpe@...uu.se>,
	Andi Kleen <andi@...stfloor.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: X86 fpu registers in a signal handler's ucontext

richard -rw- weinberger <richard.weinberger@...il.com> writes:
> Are you telling us that Ubuntu shipped the wrong header file?

Grmpf ... no. :-*

Here again, I obviously started looking at the wrong file
(i386-linux-gnu/sys/ucontext.h), which defines uc_mcontext
to be of type mcontext_t.

So the right header to be used seems to be asm-generic/ucontext.h,
which _does_ include the right definition of uc_mcontext to be of
type struct sigcontext even in Ubuntu 11.10.

Thanks again and sorry for the confusion, I hope I have my lesson
learned.

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