From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from [140.186.70.92] (port=46327 helo=eggs.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1PN9Do-0008Bv-3x for qemu-devel@nongnu.org; Mon, 29 Nov 2010 14:17:08 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1PN9Dk-0000oe-Af for qemu-devel@nongnu.org; Mon, 29 Nov 2010 14:17:08 -0500 Received: from mail.codesourcery.com ([38.113.113.100]:36960) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1PN9Dk-0000oZ-2D for qemu-devel@nongnu.org; Mon, 29 Nov 2010 14:17:04 -0500 Date: Mon, 29 Nov 2010 11:17:00 -0800 From: Nathan Froyd Subject: Re: [Qemu-devel] [PATCH 4/6] ARM: linux-user: Restore VFP state from ucontext on sigreturn Message-ID: <20101129191700.GN8544@codesourcery.com> References: <1290612008-18693-1-git-send-email-peter.maydell@linaro.org> <1290612008-18693-5-git-send-email-peter.maydell@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1290612008-18693-5-git-send-email-peter.maydell@linaro.org> List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Peter Maydell Cc: qemu-devel@nongnu.org On Wed, Nov 24, 2010 at 03:20:06PM +0000, Peter Maydell wrote: > Restore the VFP registers from the ucontext on return from a signal > handler in linux-user mode. This means that signal handlers cannot > accidentally corrupt the interrupted code's VFP state, and allows > them to deliberately modify the state via the ucontext structure. > > Signed-off-by: Peter Maydell Reviewed-by: Nathan Froyd -Nathan