From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:60163) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UfwBy-0005eq-Bt for qemu-devel@nongnu.org; Fri, 24 May 2013 13:54:20 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1UfwBp-0002yf-Rf for qemu-devel@nongnu.org; Fri, 24 May 2013 13:54:14 -0400 Received: from mail-qa0-x234.google.com ([2607:f8b0:400d:c00::234]:33461) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UfwBp-0002yZ-OG for qemu-devel@nongnu.org; Fri, 24 May 2013 13:54:05 -0400 Received: by mail-qa0-f52.google.com with SMTP id bv4so50809qab.18 for ; Fri, 24 May 2013 10:54:05 -0700 (PDT) Sender: Richard Henderson Message-ID: <519FA938.1050909@twiddle.net> Date: Fri, 24 May 2013 10:54:00 -0700 From: Richard Henderson MIME-Version: 1.0 References: <5141F36E.10004@huawei.com> <519DCEC8.8060000@huawei.com> <519DD0BF.4090702@huawei.com> <519E43EE.6090702@twiddle.net> <519F2A8F.6090903@huawei.com> <519F9D11.9020603@twiddle.net> <519FA09D.8000108@twiddle.net> In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] [PATCH 2/4] tcg/aarch64: implement new TCG target for aarch64 List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Peter Maydell Cc: Paolo Bonzini , Jani Kokkonen , Claudio Fontana , qemu-devel@nongnu.org On 05/24/2013 10:28 AM, Peter Maydell wrote: > It does what a frame pointer usually does, ie permits the debugger > (and other tools) to unwind the stack. > And is there perchance a reason we've been dropping the frame pointer from new abis, like x86_64? On the side unwind information does the job as well. Which reminds me, I've been meaning to add the jit unwind info to the arm tcg port at some point... r~