From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <gdb-patches-return-91319-listarch-gdb-patches=sources.redhat.com@sourceware.org>
Received: (qmail 6321 invoked by alias); 21 May 2012 11:38:28 -0000
Received: (qmail 6245 invoked by uid 22791); 21 May 2012 11:38:27 -0000
X-SWARE-Spam-Status: No, hits=-7.4 required=5.0	tests=AWL,BAYES_00,KHOP_RCVD_UNTRUST,KHOP_THREADED,RCVD_IN_DNSWL_HI,RCVD_IN_HOSTKARMA_W,SPF_HELO_PASS,T_RP_MATCHES_RCVD
X-Spam-Check-By: sourceware.org
Received: from mx1.redhat.com (HELO mx1.redhat.com) (209.132.183.28)    by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Mon, 21 May 2012 11:38:12 +0000
Received: from int-mx11.intmail.prod.int.phx2.redhat.com (int-mx11.intmail.prod.int.phx2.redhat.com [10.5.11.24])	by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id q4LBcAO5019263	(version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK);	Mon, 21 May 2012 07:38:10 -0400
Received: from [127.0.0.1] (ovpn01.gateway.prod.ext.phx2.redhat.com [10.5.9.1])	by int-mx11.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id q4LBc8tm019292;	Mon, 21 May 2012 07:38:09 -0400
Message-ID: <4FBA2920.4070909@redhat.com>
Date: Mon, 21 May 2012 11:38:00 -0000
From: Pedro Alves <palves@redhat.com>
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:12.0) Gecko/20120430 Thunderbird/12.0.1
MIME-Version: 1.0
To: Thiago Jung Bauermann <thiago.bauermann@linaro.org>
CC: gdb-patches ml <gdb-patches@sourceware.org>
Subject: Re: [patch] Support bionic's jmp_buf.
References: <1337560528.4363.13.camel@hactar>
In-Reply-To: <1337560528.4363.13.camel@hactar>
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: 7bit
Mailing-List: contact gdb-patches-help@sourceware.org; run by ezmlm
Precedence: bulk
List-Id: <gdb-patches.sourceware.org>
List-Subscribe: <mailto:gdb-patches-subscribe@sourceware.org>
List-Archive: <http://sourceware.org/ml/gdb-patches/>
List-Post: <mailto:gdb-patches@sourceware.org>
List-Help: <mailto:gdb-patches-help@sourceware.org>, <http://sourceware.org/ml/#faqs>
Sender: gdb-patches-owner@sourceware.org
X-SW-Source: 2012-05/txt/msg00761.txt.bz2

On 05/21/2012 01:35 AM, Thiago Jung Bauermann wrote:

> Hello,
> 
> Android uses a libc (bionic) which is derived from BSD instead of glibc,
> and stores the PC value at a different location in the jump buffer than
> regular arm-linux. Also, since there's no PC mangling this code works
> even without SystemTap probes.
> 
> I'm using the ELF interpreter field to identify an Android binary (the
> program loader is /system/bin/linker).


Urgh.  Isn't there a better way?  This doesn't work with shared libraries,
for starters.

But I think question number one is:

- Shouldn't there be an "Android" or "Bionic/Linux" OSABI instead
of abusing "GNU/Linux" ?

-- 
Pedro Alves