From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from m16.mail.163.com (m16.mail.163.com [220.197.31.5]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 1806F291C2D; Fri, 15 Aug 2025 02:53:05 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=220.197.31.5 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755226388; cv=none; b=Y0sujmuw0PCe/U1gWoLbbIVVDYNsRTY6CkuXyHaBEj683xB1MulRzZao4thEN9YEfH78GeM7+IOjk+UzL03O6UnbREeQu7R/4OcWGlxR17Nq8ce8mAY56M6ovS8pLMIGStfDOGT0Hoy2wKA4mAan4dEBtivAwVrHyy/zaJUKOA8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755226388; c=relaxed/simple; bh=cYsqzs3qX3wxW+O4L3b0NqzjTIcBQ3hmDgTEFL3X5O0=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=C9v/xGZa4SkobqUx4h3XRPFuzFFTv6QCihV8mrjjesxeXdtkLW/D2Z503HGJJVf5bcpgNoXQ5c2D+y3zk5aHhf3BTSlajr2aMkdCWBU5hktX4txcjz0kcGMhVm4AqmhQZQiqzwgYQ9pp7heFoCub1cyEGzEKFs1AIqJn3RSF1DU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=163.com; spf=pass smtp.mailfrom=163.com; dkim=pass (1024-bit key) header.d=163.com header.i=@163.com header.b=D6pOjUpy; arc=none smtp.client-ip=220.197.31.5 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=163.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=163.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=163.com header.i=@163.com header.b="D6pOjUpy" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=163.com; s=s110527; h=From:To:Subject:Date:Message-Id:MIME-Version; bh=ym Rv4TV2o/bv+U5rpjO6rT1EikbirYbtJyHM2uyELHo=; b=D6pOjUpyQM+zl2yO/v aISYSQR/eHhHwThDqpD7kKdOAvt4oDKjqIlak7etC5mmsiogF2yookILwVw8MIcf ArZD5aSbmF8wQ0qEfh77tma1VWSFwNW0NITEV3SFlkokYaQajFwctSr8b1zhAozC S4tBH7zOh7huG7TTYtuX1vQoU= Received: from 163.com (unknown []) by gzga-smtp-mtada-g0-0 (Coremail) with SMTP id _____wBnIl_toJ5oqDUKCA--.29342S2; Fri, 15 Aug 2025 10:52:31 +0800 (CST) From: chenyuan_fl@163.com To: yonghong.song@linux.dev, olsajiri@gmail.com Cc: aef2617b-ce03-4830-96a7-39df0c93aaad@kernel.org, andrii@kernel.org, ast@kernel.org, bpf@vger.kernel.org, chenyuan@kylinos.cn, daniel@iogearbox.net, linux-kernel@vger.kernel.org, qmo@kernel.org Subject: [PATCH 0/2] bpftool: Refactor config parsing and add CET symbol matching Date: Fri, 15 Aug 2025 03:52:25 +0100 Message-Id: <20250815025227.6204-1-chenyuan_fl@163.com> X-Mailer: git-send-email 2.39.5 In-Reply-To: <74709a08-4536-4c5a-8140-12d8b42e97c0@linux.dev> References: <74709a08-4536-4c5a-8140-12d8b42e97c0@linux.dev> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CM-TRANSID:_____wBnIl_toJ5oqDUKCA--.29342S2 X-Coremail-Antispam: 1Uf129KBjvdXoWrKw1UCF1UCw13CryxZrWkZwb_yoWktFgEgF WxXFyYqr15AFySkayxGr4rWryxGa1rGrW5Ja10qr4ftrsrJwsrJFsYka1qva4YqFy3Ar13 A393ZwnYv3W7JjkaLaAFLSUrUUUUjb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUvcSsGvfC2KfnxnUUI43ZEXa7IU8373DUUUUU== X-CM-SenderInfo: xfkh05pxdqswro6rljoofrz/xtbBSQSlvWiX9VwW2wABsP From: Yuan CHen 1. **Refactor kernel config parsing** - Moves duplicate config file handling from feature.c to common.c - Keeps all existing functionality while enabling code reuse 2. **Add CET-aware symbol matching** - Adjusts kprobe hook detection for x86_64 CET (endbr32/64 prefixes) - Matches symbols at both original and CET-adjusted addresses Changed in PATCH v4: * Refactor repeated code into a function. * Add detection for the x86 architecture. Changed int PATH v5: * Remove detection for the x86 architecture. Changed in PATCH v6: * Add new helper patch (1/2) to refactor kernel config reading * Use the new read_kernel_config() in CET symbol matching (2/2) to check CONFIG_X86_KERNEL_IBT Yuan Chen (2): bpftool: Refactor kernel config reading into common helper bpftool: Add CET-aware symbol matching for x86_64 architectures tools/bpf/bpftool/common.c | 93 +++++++++++++++++++++++++++++++++++++ tools/bpf/bpftool/feature.c | 86 ++-------------------------------- tools/bpf/bpftool/link.c | 38 ++++++++++++++- tools/bpf/bpftool/main.h | 9 ++++ 4 files changed, 142 insertions(+), 84 deletions(-) -- 2.39.5