From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=209.85.128.43 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1794258989; b=AMcN897oNLYq4+7SKpbIuNsFTdQTkiKdCLYp3jD0Z6DSPwUaW1yFbh5aMqhuL+Si7vQa LmTK41L/3KlYZcmiqycVToVm7edRU7ix5tsZjnfXx+oJfJJdCrN78t7ESzVsCaj4A6V3L uXKbwxXNOC5EQIWh5ULdNi1qTIYDjWI1HTXxmwF8DotWA1LPa9cj1PfpDj8u2inhQvdl/ GOXiZqLCktecAR8uD09wDNXxH6QFqzXRLTToleBMHH9AcaPi32CQE94T8K6qCsfq4GWIn ojaLolAG6ULE3NVog6GlejHXJ8WqUe54y12lQOCaDvn4u4cbXJcduhg42b9vjcDTjgA== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1794258989; h=DMARC-Filter:Received:DKIM-Signature:X-Google-DKIM-Signature: X-Gm-Message-State:X-Gm-Gg:X-Received:Received:From:To:Cc:Subject: Date:Message-ID:X-Mailer:MIME-Version:Content-Transfer-Encoding; bh=vURM/ycOWtNcfROgQ72z0JMUPAmEvRYCw8hhtZdgFRk=; b=KJHrdGYHPAPK8Q1lqeqp2LzqSTXLvEosPbZdB7fjWSBlHwZ1+NLcWK4629D9+kou08+w Smm5F0oBFEetDf1UG8nDpcBdQKGdq6NSiwEHz0BFiXDWm+bcgOObWupcM8yL7+vD0+2dl foIvG7lkC4XZvO5ENF7FVocU6X+yX3snoZ2q8gamhVCAeiH1Qn0Mk3LgBhy2w7ElAdUJq R8YhdM09ffOCFE58e3qlyKPj4+ysqgengEUrAKDfEv8lGPE3fABEcBSqSgZD9MlYBVecX wugmL66V+gbIpl8pVASHjD8kOplzRon1Y9vtR6dBdH6L1QYv04WLskuBaNuxyTBeBAQ== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256 header.s=20260707 header.b=MgmtA6b2; arc=none smtp.remote-ip=209.85.128.43 Received: from mail-wm1-f43.google.com (mail-wm1-f43.google.com [209.85.128.43]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 951D0606A321 for ; Mon, 9 Nov 2026 21:16:29 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.2 smtp.subspace.kernel.org 951D0606A321 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256 header.s=20260707 header.b=MgmtA6b2 Received: by mail-wm1-f43.google.com with SMTP id 5b1f17b1804b1-4a20bde60a0so14522475e9.3 for ; Mon, 09 Nov 2026 13:16:29 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20260707; t=1794258988; x=1794863788; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to:content-type; bh=vURM/ycOWtNcfROgQ72z0JMUPAmEvRYCw8hhtZdgFRk=; b=MgmtA6b2fe2WIcS70GTp+kgCwjUwkfW2fyiPRqoacbm1QAOB12xEdROeA42cB2H5sT 73eCYA/Fa4go87r+TbcL/qlITF7hJSdH5dOjFBeBYUAxOSu0VPbKDrRzZfnFzOeS2XXo o2Uh6ZQM+SEfnwEYWyFlivd3D6zUak+h+aTUsePbAHVVyHIB4jpCGfbMbwf7OxyayXzk 0K79nXEozl4JrV5y1QAh2vgzvVEvzu90WaVJaHEGQvfqXaUAwtWkAd6ztm7VOobzlBmL 3+zT4c4y/hktKpwsCM+zI50yWWxNBSPG73fGdKw5aQ3Als/DryewE89974Ftv+oDDBK1 tdJg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20260707; t=1794258988; x=1794863788; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-gg:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to:content-type; bh=vURM/ycOWtNcfROgQ72z0JMUPAmEvRYCw8hhtZdgFRk=; b=RNXn7HD4q/6w2QcrUNMBvjrciEHmFfji8+YzYIRclfr6cljU4D6BPgZcRwtm+GZkIv ezU7NAa9hWX08ST3otVyQWY4JJLVAQyOb1lknu4V2nBPZ36FDqCiU50ucwemAOn9Izf1 S8bZj8Ql+K+UKCNcpq5zmfExcgXrhuchHLiKLTpHSiq1eWyxTHmYh8AMLbRSsQAj+ncC j2Hkd8YFFcYE8Je+gKEWld6aB07AO8dx6FOwokr1LLY31W5zDCcjXwKdoUCr5WTa0lPz ymqPoYOlD1fi6L8N/XJSEGEPBlzYOfrCQD+K/fd2vNY0yoWDZ11igXaHz+srLGNmf9je XDgQ== X-Gm-Message-State: APuU4Z8uWLK/NEjaogEJNwtCID3Hy4du2iO+KycQwEKhq5yMzxpKqFT2 WvTwRwz3gG+XLIxSf63I3lvb39TEXqae4Bi92l7BJ1ybj7p9sBJd1Zb0DRI2mosM X-Gm-Gg: AYBFou31VPoivuBTMn5YpkBLurVNRXkmkDdtvX2ZNkjqQOuptvfX/vKznrPxh8OyHuX FQ/JkrddK/10Jx+bmzdRF1Tao1WyFHPsZrkbfPmUuPhL2Fhd/ZIXx3ODK4MNxawdhdypIpea10u 3Tau23SvQ7yH4VzVQwpgFsdCWcBWxA9qveCixmqyiRf7oc72GnpdKM0S1o+PKy6HOnvy1FGGR3P eibdmTPiX8nqqbW2Zfpl+bMlRrKD9C3R+vui+t4owEtOUz4s/pMEFgQsootLSTQdwVtfbwjjP8F GS54xY8NTrw99SpSQLazYBjksHoDWMhEMvBuMpFYPX7akLgyrewFhSvy/85Fs31qtRrEIuMjgqh lCj3a/Wlp82v38rLQyirzUCPS2Q43/5yo9HuaM8UrtA2FfBiI7MPJmAH9zLRrvPLnzyqUZRmNFr 8orCV15MKo8JUmTpTms3U7tKjZ0nT53HDrlaiBsGZ1rU9RxM4vewQFgwVOibvjeSB6yM1jUaTK0 GN6XjJ6idt1iOo28qBI4HGVrouwaG1xo+GvLouChyGIL1cBHDqqsCZKz9Y41lz8y5Y5Tp4Qy3Do faJx6H/RZcbyIKnTMoheajQ3PvSTXmlfEwtN9DHFWEnfJtldris1X8dBo+3g9E1E+i7zhB80uCi 8S0u2nEurmaips1/74wQ1a0IohtmJKyAgeOBqEKYY/BvG X-Received: by 2002:a05:600c:6291:b0:49e:7c8c:361d with SMTP id 5b1f17b1804b1-4ba0234ead8mr7663955e9.22.1794258987873; Mon, 09 Nov 2026 13:16:27 -0800 (PST) Received: from PC-DE-MARCUS (host-149-154-244-77.dynamic.voo.be. [149.154.244.77]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-4ba01fe2f09sm17550795e9.4.2026.11.09.13.16.27 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 09 Nov 2026 13:16:27 -0800 (PST) From: Marcus To: nathan@kernel.org, nsc@kernel.org Cc: linux-kbuild@vger.kernel.org, llvm@lists.linux.dev, linux-kernel@vger.kernel.org Subject: [PATCH] run-clang-tools: Resolve the compilation database before changing directory Date: Mon, 9 Nov 2026 22:16:18 +0100 Message-ID: <20261109211618.1496-1-baronmarcus2005@gmail.com> X-Mailer: git-send-email 2.51.2.windows.1 X-Mailing-List: linux-kbuild@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit The script reads the compilation database relative to its working directory, but passes the same path to clang-tidy after switching to each entry's directory. When the database is outside the build directory, a relative path can therefore point to a nonexistent location. clang-tidy then runs without the recorded compilation flags or finds an unrelated database in a parent directory. For example, invoking the script with database/compile_commands.json from the parent of database/ and build/ fails to load the database when its entries use build/ as their directory. After reading the JSON file, resolve its containing directory to an absolute path for clang-tidy's -p option. This preserves the caller's path resolution when the subprocess changes directory. The issue, fix, and reproducer were developed with OpenAI Codex assistance. Verified with Python 3.13 and clang-tidy 23.1.4 using a C file requiring a definition from the database, with relative and absolute database paths outside the build directory and a database in the working directory. Fixes: 6ad7cbc01527 ("Makefile: Add clang-tidy and static analyzer support to makefile") Signed-off-by: Marcus --- scripts/clang-tools/run-clang-tools.py | 2 ++ 1 file changed, 2 insertions(+) diff --git a/scripts/clang-tools/run-clang-tools.py b/scripts/clang-tools/run-clang-tools.py index 79d58b34..cc19f8bb 100755 --- a/scripts/clang-tools/run-clang-tools.py +++ b/scripts/clang-tools/run-clang-tools.py @@ -86,6 +86,8 @@ def main(): with open(args.path) as f: datastore = json.load(f) + args.path = os.path.dirname(os.path.abspath(args.path)) + lock = multiprocessing.Lock() try: with multiprocessing.Pool(initializer=init, initargs=(lock, args)) as pool: base-commit: 7475ea8b58616b33c04afb976cf0fbaad9dd63fb -- 2.51.2.windows.1