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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 512EBC433EF for ; Fri, 24 Jun 2022 18:34:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231584AbiFXSe3 (ORCPT ); Fri, 24 Jun 2022 14:34:29 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:32808 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230020AbiFXSe0 (ORCPT ); Fri, 24 Jun 2022 14:34:26 -0400 Received: from mx0a-001b2d01.pphosted.com (mx0a-001b2d01.pphosted.com [148.163.156.1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3A76C81273 for ; Fri, 24 Jun 2022 11:34:16 -0700 (PDT) Received: from pps.filterd (m0098399.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.17.1.5/8.17.1.5) with ESMTP id 25OIPttW000986; Fri, 24 Jun 2022 18:33:55 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-transfer-encoding; s=pp1; bh=5n/kbbwmVtiDducCA0pI1CxpPR9FC2WdELyFBwcGRw0=; b=KqTs/m0++SqIbQlrxKA72kyH7wadEGXg1jRfrYMRSeIoBqOIjMitPqhNrkM8VDqSN695 MV9H8BXsn151kIQC8G6zUghL7i4Feb02Gcx54uBhK3pP639RO6c8F3Ig+urtFlwuAfXt O50wdbJk7n6SiAULBWAtt1g1a14hk3nTk9eRw2oPnXnV7sm4whrdY9VlUGz6VUmkl9tH w79D7vjdDmEg4K9lWo+HlrHrSFQjiX/C1oP+E4mGEpcA1rNxCUzY29FuNr9Aj1JAHd9p j3DICmCBHJWn1MX05xsawN7NKJx6D9EGgw46wTY5KU7/4wSNx3dj6DAT6XoZqtzbRojC nw== Received: from pps.reinject (localhost [127.0.0.1]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 3gwjhur5w8-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 24 Jun 2022 18:33:54 +0000 Received: from m0098399.ppops.net (m0098399.ppops.net [127.0.0.1]) by pps.reinject (8.17.1.5/8.17.1.5) with ESMTP id 25OIS6B7011188; Fri, 24 Jun 2022 18:33:54 GMT Received: from ppma03fra.de.ibm.com (6b.4a.5195.ip4.static.sl-reverse.com [149.81.74.107]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 3gwjhur5uy-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 24 Jun 2022 18:33:54 +0000 Received: from pps.filterd (ppma03fra.de.ibm.com [127.0.0.1]) by ppma03fra.de.ibm.com (8.16.1.2/8.16.1.2) with SMTP id 25OIJR39019226; Fri, 24 Jun 2022 18:33:51 GMT Received: from b06cxnps3075.portsmouth.uk.ibm.com (d06relay10.portsmouth.uk.ibm.com [9.149.109.195]) by ppma03fra.de.ibm.com with ESMTP id 3gvtjp9fmp-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 24 Jun 2022 18:33:51 +0000 Received: from d06av21.portsmouth.uk.ibm.com (d06av21.portsmouth.uk.ibm.com [9.149.105.232]) by b06cxnps3075.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 25OIXm0w20775268 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 24 Jun 2022 18:33:48 GMT Received: from d06av21.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id D688352052; Fri, 24 Jun 2022 18:33:48 +0000 (GMT) Received: from li-c3569c4c-1ef8-11b2-a85c-ee139cda3133.ibm.com.com (unknown [9.43.0.85]) by d06av21.portsmouth.uk.ibm.com (Postfix) with ESMTP id 244605204E; Fri, 24 Jun 2022 18:33:44 +0000 (GMT) From: Sathvika Vasireddy To: linuxppc-dev@lists.ozlabs.org Cc: jpoimboe@redhat.com, peterz@infradead.org, linux-kernel@vger.kernel.org, aik@ozlabs.ru, mpe@ellerman.id.au, christophe.leroy@csgroup.eu, mingo@redhat.com, rostedt@goodmis.org, naveen.n.rao@linux.vnet.ibm.com, sv@linux.ibm.com, mbenes@suse.cz, benh@kernel.crashing.org, paulus@samba.org Subject: [RFC PATCH v3 08/12] objtool: Add arch specific function arch_ftrace_match() Date: Sat, 25 Jun 2022 00:02:34 +0530 Message-Id: <20220624183238.388144-9-sv@linux.ibm.com> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20220624183238.388144-1-sv@linux.ibm.com> References: <20220624183238.388144-1-sv@linux.ibm.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: 4ZHAoHhxyDNA1h6_ZBIMKsPkX9DcUvkV X-Proofpoint-GUID: e7EBk8aVeCs_-T1LeInehUFzFdR1Yf4R X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.205,Aquarius:18.0.883,Hydra:6.0.517,FMLib:17.11.122.1 definitions=2022-06-24_08,2022-06-23_01,2022-06-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 mlxscore=0 impostorscore=0 malwarescore=0 phishscore=0 suspectscore=0 bulkscore=0 mlxlogscore=999 lowpriorityscore=0 clxscore=1015 adultscore=0 spamscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2204290000 definitions=main-2206240072 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add architecture specific function to look for relocation records pointing to arch specific symbols. Suggested-by: Christophe Leroy Signed-off-by: Sathvika Vasireddy --- tools/objtool/arch/x86/decode.c | 8 ++++++++ tools/objtool/check.c | 2 +- tools/objtool/include/objtool/arch.h | 2 ++ 3 files changed, 11 insertions(+), 1 deletion(-) diff --git a/tools/objtool/arch/x86/decode.c b/tools/objtool/arch/x86/decode.c index 8b990a52aada..6a66b0c0dd2c 100644 --- a/tools/objtool/arch/x86/decode.c +++ b/tools/objtool/arch/x86/decode.c @@ -23,6 +23,14 @@ #include #include +bool arch_ftrace_match(char *name) +{ + if (!strcmp(func->name, "__fentry__")) + return true; + + return false; +} + static int is_x86_64(const struct elf *elf) { switch (elf->ehdr.e_machine) { diff --git a/tools/objtool/check.c b/tools/objtool/check.c index 88f68269860e..51b6dcec8d6a 100644 --- a/tools/objtool/check.c +++ b/tools/objtool/check.c @@ -2185,7 +2185,7 @@ static int classify_symbols(struct objtool_file *file) if (arch_is_retpoline(func)) func->retpoline_thunk = true; - if (!strcmp(func->name, "__fentry__")) + if (arch_ftrace_match(func->name)) func->fentry = true; if (is_profiling_func(func->name)) diff --git a/tools/objtool/include/objtool/arch.h b/tools/objtool/include/objtool/arch.h index 9b19cc304195..99d0c8ba1b69 100644 --- a/tools/objtool/include/objtool/arch.h +++ b/tools/objtool/include/objtool/arch.h @@ -69,6 +69,8 @@ struct stack_op { struct instruction; +bool arch_ftrace_match(char *name); + void arch_initial_func_cfi_state(struct cfi_init_state *state); int arch_decode_instruction(struct objtool_file *file, const struct section *sec, -- 2.25.1