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 5A037C04E69 for ; Wed, 2 Aug 2023 13:38:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233644AbjHBNic (ORCPT ); Wed, 2 Aug 2023 09:38:32 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35578 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231683AbjHBNi0 (ORCPT ); Wed, 2 Aug 2023 09:38:26 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C3D4CF5 for ; Wed, 2 Aug 2023 06:38:24 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 558E76199D for ; Wed, 2 Aug 2023 13:38:24 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 8579FC433C8; Wed, 2 Aug 2023 13:38:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1690983503; bh=/Rfr9Oa+qbNuNrp37cKsgxP974KLUixesuKLnDEsj34=; h=Date:From:To:Cc:Subject:From; b=g94VL46nz8zKAq5n+pKJ7xSM5Ch+rlSkp48MQcqMden16GlktzMdSB9unxQwuwEXM Pmg/80OuJWR7sv2OphZDeRC7HejKF/Wtur8jqVvzPD16sY6dGpZlZK/T4uq5wtQw04 +4G7bbyBKH68OqMzz7qqt1oap+y9G//AFtZ1PCXOSqDi3xoAaG4OmSf8b1dKLfEyzB utS6vsxTVe3tDNxp8urJ26DEks5XKE6hwFJ0H5eCC+gTWySQoPDshGq/CRmnHe8nDT rhfsr3v9MgExe3ogqUvy9T4UyVYkjHoogWK/Yt01WM6Psavky2z/PVn1z+8dQ7DHDk IJbaq6fUEfCpA== Received: by quaco.ghostprotocols.net (Postfix, from userid 1000) id A9E9F4012D; Wed, 2 Aug 2023 10:38:20 -0300 (-03) Date: Wed, 2 Aug 2023 10:38:20 -0300 From: Arnaldo Carvalho de Melo To: Namhyung Kim Cc: Adrian Hunter , Ian Rogers , Jiri Olsa , Linux Kernel Mailing List Subject: [PATCH 1/1] perf python: Cope with declarations after statements found in Python.h Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org With -Werror the build was failing on fedora rawhide: [perfbuilder@27cfe44d67ed perf-6.5.0-rc2]$ gcc -v Using built-in specs. COLLECT_GCC=gcc COLLECT_LTO_WRAPPER=/usr/libexec/gcc/x86_64-redhat-linux/13/lto-wrapper OFFLOAD_TARGET_NAMES=nvptx-none OFFLOAD_TARGET_DEFAULT=1 Target: x86_64-redhat-linux Configured with: ../configure --enable-bootstrap --enable-languages=c,c++,fortran,objc,obj-c++,ada,go,d,m2,lto --prefix=/usr --mandir=/usr/share/man --infodir=/usr/share/info --with-bugurl=http://bugzilla.redhat.com/bugzilla --enable-shared --enable-threads=posix --enable-checking=release --enable-multilib --with-system-zlib --enable-__cxa_atexit --disable-libunwind-exceptions --enable-gnu-unique-object --enable-linker-build-id --with-gcc-major-version-only --enable-libstdcxx-backtrace --with-libstdcxx-zoneinfo=/usr/share/zoneinfo --with-linker-hash-style=gnu --enable-plugin --enable-initfini-array --with-isl=/builddir/build/BUILD/gcc-13.2.1-20230728/obj-x86_64-redhat-linux/isl-install --enable-offload-targets=nvptx-none --without-cuda-driver --enable-offload-defaulted --enable-gnu-indirect-function --enable-cet --with-tune=generic --with-arch_32=i686 --build=x86_64-redhat-linux --with-build-config=bootstrap-lto --enable-link-serialization=1 Thread model: posix Supported LTO compression algorithms: zlib zstd gcc version 13.2.1 20230728 (Red Hat 13.2.1-1) (GCC) [perfbuilder@27cfe44d67ed perf-6.5.0-rc2]$ In file included from /usr/include/python3.12/Python.h:44, from /git/perf-6.5.0-rc2/tools/perf/util/python.c:2: /usr/include/python3.12/object.h: In function ‘Py_SIZE’: /usr/include/python3.12/object.h:217:5: error: ISO C90 forbids mixed declarations and code [-Werror=declaration-after-statement] 217 | PyVarObject *var_ob = _PyVarObject_CAST(ob); | ^~~~~~~~~~~ LD /tmp/build/perf/arch/perf-in.o In file included from /usr/include/python3.12/Python.h:53: /usr/include/python3.12/cpython/longintrepr.h: In function ‘_PyLong_CompactValue’: /usr/include/python3.12/cpython/longintrepr.h:121:5: error: ISO C90 forbids mixed declarations and code [-Werror=declaration-after-statement] 121 | Py_ssize_t sign = 1 - (op->long_value.lv_tag & _PyLong_SIGN_MASK); | ^~~~~~~~~~ So add -Wno-declaration-after-statement to the python binding CFLAGS. Cc: Adrian Hunter Cc: Ian Rogers Cc: Jiri Olsa Cc: Namhyung Kim Link: https://lore.kernel.org/lkml/ Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/setup.py | 3 +++ 1 file changed, 3 insertions(+) diff --git a/tools/perf/util/setup.py b/tools/perf/util/setup.py index 869738fc06c38a4b..79d5e2955f85d8f6 100644 --- a/tools/perf/util/setup.py +++ b/tools/perf/util/setup.py @@ -66,6 +66,9 @@ if cc_is_clang: else: cflags += ['-Wno-cast-function-type' ] +# The python headers have mixed code with declarations (decls after asserts, for instance) +cflags += [ "-Wno-declaration-after-statement" ] + src_perf = getenv('srctree') + '/tools/perf' build_lib = getenv('PYTHON_EXTBUILD_LIB') build_tmp = getenv('PYTHON_EXTBUILD_TMP') -- 2.37.1