From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pl1-f180.google.com (mail-pl1-f180.google.com [209.85.214.180]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 59267289367 for ; Sun, 3 May 2026 10:16:09 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.214.180 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777803370; cv=none; b=F5CPFVZHUloxwRv+RNUmmoQ8m2YUZ/RrDG9zdUo3Yy4ck1+tJG6f6YumcvJcJnBacf6hLdbyMFj/5Ca3KG6qgIVmoA2whKBBcatZpYmosieNiuuQoYEsnQOFZQWRZrQLquNjHRieC3GTpba2lrteAAss7akpOGy9+lu9/YTzP9Y= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777803370; c=relaxed/simple; bh=1btOSWinIznhILUWPU9SQybPSt0VmE+8i3i6zz1gQ84=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=hb/wZTr7nj8yaIQXlXbPEkeDURaoIuKUp9L2Juq0hgEGwE2o9QMYepMOY0ikrFMOlAQVmdqTX1XiwxIuW9nXaeUZuOv5bECz6+PrX6VXDL3PNo0Ea20eNethkdGetRXFMJWgsc/pnY7cswSIfGvDj+AwulXJPz/vnd7aUYTyuB8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=TfDzuL+A; arc=none smtp.client-ip=209.85.214.180 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.b="TfDzuL+A" Received: by mail-pl1-f180.google.com with SMTP id d9443c01a7336-2b4583f0a1aso18665105ad.3 for ; Sun, 03 May 2026 03:16:09 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20251104; t=1777803369; x=1778408169; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=svXN+ZlAdU7VDLF9TtRXFpJ6BtWW3ljpT3ve/4UXduA=; b=TfDzuL+AosFUfIlhwGPlPmr0Kvwk9jwbOzPZ3hRyrBkWQefnjq4oavyT+2kbyw3y6H 16qgWM1N9Fris9KXcrcNkkBacFa1JH5LFJkRZnvsf3aYsGHuNmrFUMdupxnzg5yVeEGs ie5HUFBZjQXgbx1Z89XRBPRAMT9G5IdI+5Dukyq7PUxWfQXDCc9NCVO+aQdsIZ7jfXML KpWQKIgsXqBvzUrfs8P+Y6TE/G2h0yojt/10XwreShYz5YJoIY0IYZ9jrevVnKgP1XQf nGKKi6AJ6oJqQKvS7VgI8tCPRoPVLSb78f+6Mh2+3BzcQifEhMMbOw/JuAdigUPKo4nE wdAg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1777803369; x=1778408169; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-gg:x-gm-message-state:from :to:cc:subject:date:message-id:reply-to; bh=svXN+ZlAdU7VDLF9TtRXFpJ6BtWW3ljpT3ve/4UXduA=; b=p3dO36TTOVoxKGr2H02pvGxRww03d305dNh7TQ8sNzGu4em4Fkdhx4a05wydg0qMjY 4kvpNvhfcWVWgIc0lRE+cHlyV+gEn3T21TQxxFPERcfBVPA9kwCt52HrlmQhY07GrAPi AWDuHT/BwJsysWBO+NB4R0SCgT3iQZcdZkM7LV2g44MObDW1xHHI4iAzc+TAkkNCtdgw PkQfJDlvx0xJa0AlugnDHO+SoeKXJU+aeBi72DLGB+VKOc0jnAPfXK0Nhl3gQycOy/JJ GvlgjO2iK67DykjOcUG1BS/rArIBv1j6GCzR2A9ciMVPRQj7neLm3QSwL+f27udq8IoI fTEg== X-Forwarded-Encrypted: i=1; AFNElJ9WGXYdA2chJ347pG/P8ShRUkvNmyR8JRa3cWqCuPBTVG5VDKwIOeQuwEPgbJEyhuzj9N/VMG5qcZ1Eygo=@vger.kernel.org X-Gm-Message-State: AOJu0Yw2FXMu+ZgL5bE7onEasdBX9DJtu/sqF+fIPGRqE8unyVnDiDHp fOjlI3drMWx/8cc/ifPZWw8pApq5FlbZQmIOcocuygdBhN4C7dhKwyTMaeZU/OqW X-Gm-Gg: AeBDiet2mlWX4WYBT7icxnX7fY1vqOCJew9GLLs4XGu05XLymcHQp+QWVU2NwEI/mwi B6Utd64D9ZimO8dYctuVh6+pRwSBvSQATwUfqzr3Zg9Og4G7ieoj5g0aP1W0Z9oMaTHiIRKdHep GuS4UFaFa+jqcWvkKjzvE2+1pUMufjnlGFY+bauRbNcoH6J3XZIigMB+ELWDBT42sSXBeyxJY6b bZ1hTv8A289no/VibW/2sDbkg28noOtKS10ZNTfR/nWp9ZWMzBh89Awh05+gDrMDhZ9D6u196dy bsgQPuqJiXKYaD7vedhEyP/FAA6L3e0sfONYqbEPkU+eaM2g0mrdyYVu6gQX6VJkyycaLwSmKhF fjqcPbadf0ork3T7O+LepVAHie8QpX5Oa1VQ0CyXQKvIoCNm4QpEVEGKpbsKvdSoQY2QqtY30vE a4NsiodlVugVl90OKD+O5Gz+B3SQ== X-Received: by 2002:a17:903:1a86:b0:2b2:4d36:7ba with SMTP id d9443c01a7336-2b9f22144a6mr50304105ad.0.1777803368740; Sun, 03 May 2026 03:16:08 -0700 (PDT) Received: from apt ([140.123.97.23]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-2b9caad2bd7sm81073455ad.36.2026.05.03.03.16.07 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 03 May 2026 03:16:08 -0700 (PDT) From: Cheng-Han Wu To: Jonathan Corbet , Shuah Khan Cc: Randy Dunlap , linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, Cheng-Han Wu Subject: [PATCH 4/4] docs: admin-guide: add IGNORE_DIRS example for cscope Date: Sun, 3 May 2026 18:14:29 +0800 Message-ID: <20260503101429.254394-5-hank20010209@gmail.com> X-Mailer: git-send-email 2.52.0 In-Reply-To: <20260503101429.254394-1-hank20010209@gmail.com> References: <20260503101429.254394-1-hank20010209@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit The workload tracing guide shows how to build a cscope database by running cscope command directly. The kernel build system also provides a cscope target, which supports IGNORE_DIRS for excluding directories from the generated database. Mention make cscope and show how to exclude Documentation/ as an example. Signed-off-by: Cheng-Han Wu --- Documentation/admin-guide/workload-tracing.rst | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/Documentation/admin-guide/workload-tracing.rst b/Documentation/admin-guide/workload-tracing.rst index c49c2a00a8b8..314e5f03474e 100644 --- a/Documentation/admin-guide/workload-tracing.rst +++ b/Documentation/admin-guide/workload-tracing.rst @@ -202,6 +202,15 @@ database. To get out of this mode press ctrl+d. -p option is used to specify the number of file path components to display. -p10 is optimal for browsing kernel sources. +Alternatively, the kernel build system can generate the cscope database:: + + make cscope + +To exclude directories from the generated database, pass IGNORE_DIRS to +the cscope target. For example, to exclude Documentation/, run:: + + make IGNORE_DIRS="Documentation" cscope + What is perf and how do we use it? ================================== -- 2.52.0