From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:46600) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1e090T-0005lB-G1 for qemu-devel@nongnu.org; Thu, 05 Oct 2017 12:28:18 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1e090S-0006JV-Lo for qemu-devel@nongnu.org; Thu, 05 Oct 2017 12:28:17 -0400 Received: from mail-qt0-x231.google.com ([2607:f8b0:400d:c0d::231]:48426) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1e090S-0006J8-GZ for qemu-devel@nongnu.org; Thu, 05 Oct 2017 12:28:16 -0400 Received: by mail-qt0-x231.google.com with SMTP id d13so25757735qta.5 for ; Thu, 05 Oct 2017 09:28:16 -0700 (PDT) References: <1506092407-26985-1-git-send-email-peter.maydell@linaro.org> <1506092407-26985-8-git-send-email-peter.maydell@linaro.org> From: Richard Henderson Message-ID: <021427db-f8cb-9416-31bb-85f0bbb80e2d@linaro.org> Date: Thu, 5 Oct 2017 12:28:13 -0400 MIME-Version: 1.0 In-Reply-To: <1506092407-26985-8-git-send-email-peter.maydell@linaro.org> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] [PATCH 07/20] target/arm: Warn about restoring to unaligned stack List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Peter Maydell , qemu-arm@nongnu.org, qemu-devel@nongnu.org Cc: patches@linaro.org On 09/22/2017 10:59 AM, Peter Maydell wrote: > Attempting to do an exception return with an exception frame that > is not 8-aligned is UNPREDICTABLE in v8M; warn about this. > (It is not UNPREDICTABLE in v7M, and our implementation can > handle the merely-4-aligned case fine, so we don't need to > do anything except warn.) > > Signed-off-by: Peter Maydell > --- > target/arm/helper.c | 7 +++++++ > 1 file changed, 7 insertions(+) Reviewed-by: Richard Henderson r~