From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-3.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id F2C3FC43331 for ; Thu, 5 Sep 2019 18:20:50 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 08C2B2053B for ; Thu, 5 Sep 2019 18:20:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2391229AbfIESUu (ORCPT ); Thu, 5 Sep 2019 14:20:50 -0400 Received: from mx0a-001b2d01.pphosted.com ([148.163.156.1]:65272 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730926AbfIESUt (ORCPT ); Thu, 5 Sep 2019 14:20:49 -0400 Received: from pps.filterd (m0098394.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.27/8.16.0.27) with SMTP id x85ICgJt124532 for ; Thu, 5 Sep 2019 14:20:49 -0400 Received: from e06smtp02.uk.ibm.com (e06smtp02.uk.ibm.com [195.75.94.98]) by mx0a-001b2d01.pphosted.com with ESMTP id 2uu70u19gk-1 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=NOT) for ; Thu, 05 Sep 2019 14:20:48 -0400 Received: from localhost by e06smtp02.uk.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Thu, 5 Sep 2019 19:20:46 +0100 Received: from b06cxnps4074.portsmouth.uk.ibm.com (9.149.109.196) by e06smtp02.uk.ibm.com (192.168.101.132) with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted; (version=TLSv1/SSLv3 cipher=AES256-GCM-SHA384 bits=256/256) Thu, 5 Sep 2019 19:20:44 +0100 Received: from d06av26.portsmouth.uk.ibm.com (d06av26.portsmouth.uk.ibm.com [9.149.105.62]) by b06cxnps4074.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id x85IKhi750331744 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 5 Sep 2019 18:20:43 GMT Received: from d06av26.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id AB882AE051; Thu, 5 Sep 2019 18:20:43 +0000 (GMT) Received: from d06av26.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id C7343AE045; Thu, 5 Sep 2019 18:20:41 +0000 (GMT) Received: from naverao1-tp.ibmuc.com (unknown [9.85.95.49]) by d06av26.portsmouth.uk.ibm.com (Postfix) with ESMTP; Thu, 5 Sep 2019 18:20:41 +0000 (GMT) From: "Naveen N. Rao" To: Michael Ellerman , Steven Rostedt Cc: Nicholas Piggin , , Subject: [PATCH 0/3] powerpc/ftrace: Enable HAVE_FUNCTION_GRAPH_RET_ADDR_PTR Date: Thu, 5 Sep 2019 23:50:27 +0530 X-Mailer: git-send-email 2.23.0 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 x-cbid: 19090518-0008-0000-0000-000003118392 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 19090518-0009-0000-0000-00004A2FDE4D Message-Id: X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:,, definitions=2019-09-05_05:,, signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=0 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=552 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1906280000 definitions=main-1909050172 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Enable HAVE_FUNCTION_GRAPH_RET_ADDR_PTR for more robust stack unwinding when function graph tracer is in use. Convert powerpc show_stack() to use ftrace_graph_ret_addr() for better stack unwinding. - Naveen Naveen N. Rao (3): ftrace: Look up the address of return_to_handler() using helpers powerpc/ftrace: Enable HAVE_FUNCTION_GRAPH_RET_ADDR_PTR powerpc: Use ftrace_graph_ret_addr() when unwinding arch/powerpc/include/asm/asm-prototypes.h | 3 ++- arch/powerpc/include/asm/ftrace.h | 2 ++ arch/powerpc/kernel/process.c | 19 ++++++------------- arch/powerpc/kernel/stacktrace.c | 2 +- arch/powerpc/kernel/trace/ftrace.c | 5 +++-- arch/powerpc/kernel/trace/ftrace_32.S | 1 + .../powerpc/kernel/trace/ftrace_64_mprofile.S | 1 + arch/powerpc/kernel/trace/ftrace_64_pg.S | 1 + kernel/trace/fgraph.c | 4 ++-- 9 files changed, 19 insertions(+), 19 deletions(-) -- 2.23.0