From patchwork Mon Feb 6 22:25:11 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ilya Leoshkevich X-Patchwork-Id: 64383 Return-Path: X-Original-To: patchwork@sourceware.org Delivered-To: patchwork@sourceware.org Received: from server2.sourceware.org (localhost [IPv6:::1]) by sourceware.org (Postfix) with ESMTP id 604663858C66 for ; Mon, 6 Feb 2023 22:26:35 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 604663858C66 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sourceware.org; s=default; t=1675722395; bh=GC2+TvpkOnSImAMW3MxSj8xwYpHecNKNQtyHB4Qw90I=; h=To:Cc:Subject:Date:In-Reply-To:References:List-Id: List-Unsubscribe:List-Archive:List-Help:List-Subscribe:From: Reply-To:From; b=lowsDNxB5PikAOWoL150v9rFLlTaTtuCDNxm56S27KlCKRl/u3a8RwcOmAYsF33ci xdh7jnVpRdW5FeHVZQLbaesj1EWGRK7tRTm/vGamkYk0aZehtgyW9my4K9LuVT3vnX xMi0SyCy+ItG3ysWEY1i5ACOkGMmeHcLnDIFHANk= X-Original-To: elfutils-devel@sourceware.org Delivered-To: elfutils-devel@sourceware.org Received: from mx0a-001b2d01.pphosted.com (mx0a-001b2d01.pphosted.com [148.163.156.1]) by sourceware.org (Postfix) with ESMTPS id DA7653858033 for ; Mon, 6 Feb 2023 22:25:40 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org DA7653858033 Received: from pps.filterd (m0098396.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 316Ljo6a019010 for ; Mon, 6 Feb 2023 22:25:40 GMT Received: from ppma03ams.nl.ibm.com (62.31.33a9.ip4.static.sl-reverse.com [169.51.49.98]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 3nk9rhrwcm-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT) for ; Mon, 06 Feb 2023 22:25:39 +0000 Received: from pps.filterd (ppma03ams.nl.ibm.com [127.0.0.1]) by ppma03ams.nl.ibm.com (8.17.1.19/8.17.1.19) with ESMTP id 316C0KHk021137 for ; Mon, 6 Feb 2023 22:25:37 GMT Received: from smtprelay06.fra02v.mail.ibm.com ([9.218.2.230]) by ppma03ams.nl.ibm.com (PPS) with ESMTPS id 3nhf06jutr-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT) for ; Mon, 06 Feb 2023 22:25:37 +0000 Received: from smtpav06.fra02v.mail.ibm.com (smtpav06.fra02v.mail.ibm.com [10.20.54.105]) by smtprelay06.fra02v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 316MPX8E26280416 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Mon, 6 Feb 2023 22:25:33 GMT Received: from smtpav06.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id CBAA020076; Mon, 6 Feb 2023 22:25:33 +0000 (GMT) Received: from smtpav06.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 818BE20074; Mon, 6 Feb 2023 22:25:33 +0000 (GMT) Received: from heavy.lan (unknown [9.179.9.231]) by smtpav06.fra02v.mail.ibm.com (Postfix) with ESMTP; Mon, 6 Feb 2023 22:25:33 +0000 (GMT) To: elfutils-devel@sourceware.org Cc: Ilya Leoshkevich Subject: [PATCH RFC 09/11] configure: Use -fno-addrsig if possible Date: Mon, 6 Feb 2023 23:25:11 +0100 Message-Id: <20230206222513.1773039-10-iii@linux.ibm.com> X-Mailer: git-send-email 2.39.1 In-Reply-To: <20230206222513.1773039-1-iii@linux.ibm.com> References: <20230206222513.1773039-1-iii@linux.ibm.com> X-TM-AS-GCONF: 00 X-Proofpoint-GUID: bWG3muW_W_7yxSgIhgAmaQkZfdoIKf4W X-Proofpoint-ORIG-GUID: bWG3muW_W_7yxSgIhgAmaQkZfdoIKf4W X-Proofpoint-UnRewURL: 0 URL was un-rewritten MIME-Version: 1.0 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.219,Aquarius:18.0.930,Hydra:6.0.562,FMLib:17.11.122.1 definitions=2023-02-06_07,2023-02-06_03,2022-06-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 priorityscore=1501 lowpriorityscore=0 suspectscore=0 bulkscore=0 adultscore=0 spamscore=0 mlxscore=0 phishscore=0 malwarescore=0 clxscore=1015 mlxlogscore=999 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2212070000 definitions=main-2302060191 X-Spam-Status: No, score=-11.9 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_EF, GIT_PATCH_0, KAM_SHORT, SPF_HELO_NONE, SPF_PASS, TXREP autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org X-BeenThere: elfutils-devel@sourceware.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Elfutils-devel mailing list List-Unsubscribe: , List-Archive: List-Help: List-Subscribe: , X-Patchwork-Original-From: Ilya Leoshkevich via Elfutils-devel From: Ilya Leoshkevich Reply-To: Ilya Leoshkevich Errors-To: elfutils-devel-bounces+patchwork=sourceware.org@sourceware.org Sender: "Elfutils-devel" By default, clang produces .llvm_addrsig sections [1]. The GNU toolchain does not know how to handle them yet [2], so just ask clang not to generate them for the time being. [1] https://llvm.org/docs/Extensions.html#sht-llvm-addrsig-section-address-significance-table [2] https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105625 Signed-off-by: Ilya Leoshkevich --- configure.ac | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/configure.ac b/configure.ac index 8fe8baee..7dc9be63 100644 --- a/configure.ac +++ b/configure.ac @@ -588,6 +588,14 @@ CFLAGS="$old_CFLAGS"]) AM_CONDITIONAL(HAVE_NO_PACKED_NOT_ALIGNED_WARNING, [test "x$ac_cv_no_packed_not_aligned" != "xno"]) +AC_CACHE_CHECK([whether the compiler accepts -fno-addrsig], ac_cv_fno_addrsig, [dnl +old_CFLAGS="$CFLAGS" +CFLAGS="$CFLAGS -fno-addrsig -Werror" +AC_COMPILE_IFELSE([AC_LANG_SOURCE([])], + ac_cv_fno_addrsig=yes, ac_cv_fno_addrsig=no) +CFLAGS="$old_CFLAGS"]) +AS_IF([test "x$ac_cv_fno_addrsig" = "xyes"], CFLAGS="$CFLAGS -fno-addrsig") + saved_LIBS="$LIBS" AC_SEARCH_LIBS([argp_parse], [argp]) LIBS="$saved_LIBS"