From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1424518AbcFHKQV (ORCPT ); Wed, 8 Jun 2016 06:16:21 -0400 Received: from szxga04-in.huawei.com ([119.145.14.52]:44560 "EHLO szxga04-in.huawei.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1161934AbcFHKQS (ORCPT ); Wed, 8 Jun 2016 06:16:18 -0400 From: He Kuang To: , , , , , , , , , , , , , , , , , CC: Subject: [PATCH 2/3] perf unwind: Fix wrongly used regs for x86_32 unwind Date: Wed, 8 Jun 2016 10:15:37 +0000 Message-ID: <1465380938-64371-3-git-send-email-hekuang@huawei.com> X-Mailer: git-send-email 1.8.3.4 In-Reply-To: <1465380938-64371-1-git-send-email-hekuang@huawei.com> References: <1465380938-64371-1-git-send-email-hekuang@huawei.com> MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.107.193.250] X-CFilter-Loop: Reflected X-Mirapoint-Virus-RAPID-Raw: score=unknown(0), refid=str=0001.0A090202.5757F064.0078,ss=1,re=0.000,recu=0.000,reip=0.000,cl=1,cld=1,fgs=0, ip=0.0.0.0, so=2014-11-16 11:51:01, dmn=2013-03-21 17:37:32 X-Mirapoint-Loop-Id: c830b2a83e19e27ed7367db2fdc1308d Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org By default, "unwind-libunwind-local.c" gets SP/IP register number according to the host platform, for remote unwind, we should use register number for target platform. Fix this by define LIBUNWIND_ARCH_REG_SP/IP in the wrapper file of x86_32 platform. Signed-off-by: He Kuang --- tools/perf/util/libunwind/x86_32.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/tools/perf/util/libunwind/x86_32.c b/tools/perf/util/libunwind/x86_32.c index d98c17e..957ffff 100644 --- a/tools/perf/util/libunwind/x86_32.c +++ b/tools/perf/util/libunwind/x86_32.c @@ -12,7 +12,13 @@ */ #define REMOTE_UNWIND_LIBUNWIND + +/* Define arch specific functions & regs for libunwind, should be + * defined before including "unwind.h" + */ #define LIBUNWIND__ARCH_REG_ID(regnum) libunwind__x86_reg_id(regnum) +#define LIBUNWIND__ARCH_REG_IP PERF_REG_X86_IP +#define LIBUNWIND__ARCH_REG_SP PERF_REG_X86_SP #include "unwind.h" #include "debug.h" -- 1.8.5.2