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 2EBBF2248B8; Fri, 29 Aug 2025 06:11:58 +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=1756447921; cv=none; b=gq7q3itRTdig4mK7MNsLXyQMLQt6U29D5WlJ3bacBtMBCCWWGoEEiYuFxz3hdl7BqvSAGsMT4QBzJ5P1lFq4R4MfskvyrXvk4RfTWOJ3pcwIL1pY7C2pL3GNhJMsWwCr3WSKHn8gaGuQmpdW7VYQ8BMZzXMB0lq93jxrMK6oJ/g= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1756447921; c=relaxed/simple; bh=EQ/zcAckVWgbMbZQab4BvLqSIULf4GwdrgDeaUo913A=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=XbHbufVK7s2/RXRGjbJ971v51yxtRi/GzKqnRc7EvJ3kXIByNRIM6yTqeu2a0zFcHeccZqw4lzRV+G/jQRlQh3XET2/jeudnNvWoghAn2vcWd3Yf3xdryEZ3dqlOFeonf4ck54S/7570SDLlnV5lQbfnynyVjDRURRAaaWVUgyk= 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=f2cRPdd7; 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="f2cRPdd7" 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=JW JSnQ3s8yELJiCYVUrKb89fO2yyCBW/15VLGtPgeZ4=; b=f2cRPdd723qSuT6ak7 bWotvCXwTZ+Tnjaqs9SJLXDStlhvACg0juppw+1jynEr/GDhVyHqkuOR8rwqlqun Ls2ljSUlMfnwTQuDEkwfvx0eHRtpNplA3rU8IluRq0XAs4NsOqGgjiZJMuEP3wMk rVM7m7146YKaBSxoLvtotNRf4= Received: from 163.com (unknown []) by gzga-smtp-mtada-g1-1 (Coremail) with SMTP id _____wD3vTZ9RLFoGWmGEg--.4740S2; Fri, 29 Aug 2025 14:11:10 +0800 (CST) From: chenyuan_fl@163.com To: qmo@kernel.org, ast@kernel.org, daniel@iogearbox.net, andrii@kernel.org Cc: yonghong.song@linux.dev, olsajiri@gmail.com, bpf@vger.kernel.org, linux-kernel@vger.kernel.org, chenyuan@kylinos.cn Subject: [PATCH v8 0/2] bpftool: Refactor config parsing and add CET symbol matching Date: Fri, 29 Aug 2025 07:11:05 +0100 Message-Id: <20250829061107.23905-1-chenyuan_fl@163.com> X-Mailer: git-send-email 2.39.5 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:_____wD3vTZ9RLFoGWmGEg--.4740S2 X-Coremail-Antispam: 1Uf129KBjvJXoW7Cr4rZw4rAF4xJw1fAFy5Arb_yoW8JFy3p3 yfCrW3XryUXr13uanxGr48WrW5Grs7Wr48Xrn7G348Aw18Ar10yr1Igan7JasxJryaqF1U ZF1F9FyqgasrArUanT9S1TB71UUUUU7qnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDUYxBIdaVFxhVjvjDU0xZFpf9x07jn189UUUUU= X-CM-SenderInfo: xfkh05pxdqswro6rljoofrz/1tbiUQ+4vWixPtyECAAAss 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 Changed in PATCH v7: * Display actual kprobe attachment addresses instead of symbol addresses 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