From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D3940238C15; Wed, 1 Oct 2025 14:21:23 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1759328483; cv=none; b=t3xVfyjKrbvxVXCUOXBaeruZ8f/e2m/PcdeZbE3Ksvs5xTb5XfNgfV9HusjY1z/MNjZ+E3T4NfJz+Perkls8kX/HrUZETQDJjG6E4xsLDbiz3pzTi5T90xX0JTkUQD9wOxIHajc64+rfhnJuDt9fOPxhCkXpD5rUrzhPaxrl3n4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1759328483; c=relaxed/simple; bh=J2fqNDAd1wRU864eSpkfrd999qUHOFK/4c5fDl4Dl/c=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=dx//Nbd6H9KlLf1WNbhf9ttCez+L0dBzMU8siDfLHWw8w6YwNsKBDvmYG9TzUBNDK/c8atOGXp5WG/ziqiuwcxNyI0wyjSAZJ/QV3o9k6xqYLjdZEmPAk2H/8LHH2KbeDNMMx7LSjgPDwRnj/RH6OYpOm4DKcrJr6i3QozCCqqo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Ppq0wNVC; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="Ppq0wNVC" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 00075C4CEF1; Wed, 1 Oct 2025 14:21:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1759328483; bh=J2fqNDAd1wRU864eSpkfrd999qUHOFK/4c5fDl4Dl/c=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=Ppq0wNVCZl49QUnuNWMqJMVyXU2DqLrdlPDr8cnmvrzwqvtM5wRv7ff6hocv7/oFC Pfun6y0oKel+L98l7ayCFYyz7gHiItSbbxHUUtaCdQhFIxs2vPPbcXsq+EIFIbRhFa iLE5/2QhcQuTkHZH8tODay3K7NUSDmYXr+PyGqJV14OxlA0p1TnzejJp2Wgnev6pwc CFEYxRtp71kJYY01z0L9yJlmffr//QTNB4lWqO61W6pigaWm5l1ZI1dMiqnysVT6Se 3jC2aExEmObG4DxPaJ/ZTTtf2ZJUpazGiym+nDMHQT9cI4HcNxbhTp2jxAU1c4jgVj Yn4tNZoh85oHA== Date: Wed, 1 Oct 2025 11:21:20 -0300 From: Arnaldo Carvalho de Melo To: Leo Yan Cc: Namhyung Kim , Jiri Olsa , Ian Rogers , Adrian Hunter , Nathan Chancellor , Nick Desaulniers , Bill Wendling , Justin Stitt , Paul Walmsley , Palmer Dabbelt , Albert Ou , Alexandre Ghiti , James Clark , linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org, llvm@lists.linux.dev, linux-riscv@lists.infradead.org Subject: Re: [PATCH v2 0/8] perf build: Support building with Clang Message-ID: References: <20250930-perf_build_android_ndk-v2-0-2ea440b7ef01@arm.com> Precedence: bulk X-Mailing-List: linux-perf-users@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20250930-perf_build_android_ndk-v2-0-2ea440b7ef01@arm.com> On Tue, Sep 30, 2025 at 05:54:48PM +0100, Leo Yan wrote: > This series adds support for building perf with Clang, following the > discussion in [1]. Because the Android NDK uses Clang by default, > enabling Clang builds naturally covers Android as well. > > The series is organized as follows: > > - Patches 1–2: Fix two bugs found with Clang. > - Patches 3–6: Correct CROSS_ARCH and dismiss Clang build warnings. > - Patches 7–8: Enable Clang in the Makefile and update the > documentation. > > Testing: > > - Clang 15.0.7 on Ubuntu 22.04.5: native and cross-compiling (aarch64) > - Clang 18.1.3 on Ubuntu 24.04.2: native and cross-compiling (aarch64) > - Android NDK r27d (latest LTS): cross-compiling (aarch64) LD /tmp/build/perf/util/perf-util-in.o LD /tmp/build/perf/perf-util-in.o AR /tmp/build/perf/libperf-util.a CC /tmp/build/perf/pmu-events/pmu-events.o LD /tmp/build/perf/pmu-events/pmu-events-in.o AR /tmp/build/perf/libpmu-events.a LINK /tmp/build/perf/perf make: Leaving directory '/git/perf-6.17.0-rc6/tools/perf' + rm -rf /tmp/build/perf + mkdir /tmp/build/perf + make 'ARCH=' 'CROSS_COMPILE=' 'EXTRA_CFLAGS=' -C tools/perf 'O=/tmp/build/perf' 'CC=clang' make: Entering directory '/git/perf-6.17.0-rc6/tools/perf' BUILD: Doing 'make -j28' parallel build Makefile.config:494: *** No gnu/libc-version.h found, please install glibc-dev[el]. Stop. make[1]: *** [Makefile.perf:289: sub-make] Error 2 make: *** [Makefile:76: all] Error 2 make: Leaving directory '/git/perf-6.17.0-rc6/tools/perf' + exit 1 toolsbuilder@five:~$ cat dm.log/alpine\:3.22 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id C3CCACAC5BB for ; Wed, 1 Oct 2025 14:21:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References: Message-ID:Subject:Cc:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; 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Wed, 1 Oct 2025 14:21:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1759328483; bh=J2fqNDAd1wRU864eSpkfrd999qUHOFK/4c5fDl4Dl/c=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=Ppq0wNVCZl49QUnuNWMqJMVyXU2DqLrdlPDr8cnmvrzwqvtM5wRv7ff6hocv7/oFC Pfun6y0oKel+L98l7ayCFYyz7gHiItSbbxHUUtaCdQhFIxs2vPPbcXsq+EIFIbRhFa iLE5/2QhcQuTkHZH8tODay3K7NUSDmYXr+PyGqJV14OxlA0p1TnzejJp2Wgnev6pwc CFEYxRtp71kJYY01z0L9yJlmffr//QTNB4lWqO61W6pigaWm5l1ZI1dMiqnysVT6Se 3jC2aExEmObG4DxPaJ/ZTTtf2ZJUpazGiym+nDMHQT9cI4HcNxbhTp2jxAU1c4jgVj Yn4tNZoh85oHA== Date: Wed, 1 Oct 2025 11:21:20 -0300 From: Arnaldo Carvalho de Melo To: Leo Yan Cc: Namhyung Kim , Jiri Olsa , Ian Rogers , Adrian Hunter , Nathan Chancellor , Nick Desaulniers , Bill Wendling , Justin Stitt , Paul Walmsley , Palmer Dabbelt , Albert Ou , Alexandre Ghiti , James Clark , linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org, llvm@lists.linux.dev, linux-riscv@lists.infradead.org Subject: Re: [PATCH v2 0/8] perf build: Support building with Clang Message-ID: References: <20250930-perf_build_android_ndk-v2-0-2ea440b7ef01@arm.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20250930-perf_build_android_ndk-v2-0-2ea440b7ef01@arm.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20251001_072125_126043_841839BC X-CRM114-Status: GOOD ( 13.30 ) X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; 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