From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753749AbcHRI7T (ORCPT ); Thu, 18 Aug 2016 04:59:19 -0400 Received: from mail.kernel.org ([198.145.29.136]:37920 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753135AbcHRI7P (ORCPT ); Thu, 18 Aug 2016 04:59:15 -0400 From: Masami Hiramatsu To: Arnaldo Carvalho de Melo , Steven Rostedt Cc: Masami Hiramatsu , linux-kernel@vger.kernel.org, Peter Zijlstra , Ingo Molnar , Naohiro Aota , Alexander Shishkin , Wang Nan , Hemant Kumar Subject: [PATCH 2/6] ftrace: probe: Add README entries for k/uprobe-events Date: Thu, 18 Aug 2016 17:58:15 +0900 Message-Id: <147151069524.12957.12957179170304055028.stgit@devbox> X-Mailer: git-send-email 2.7.4 In-Reply-To: <147151064700.12957.1184322470361742842.stgit@devbox> References: <147151064700.12957.1184322470361742842.stgit@devbox> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add README entries for kprobe-events and uprobe-events. This allows user to check what options can be acceptable for running kernel. E.g. perf tools can choose correct types for the kernel. Signed-off-by: Masami Hiramatsu --- 0 files changed diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index dade4c9..1e2ce3b 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -4123,6 +4123,30 @@ static const char readme_msg[] = "\t\t\t traces\n" #endif #endif /* CONFIG_STACK_TRACER */ +#ifdef CONFIG_KPROBE_EVENT + " kprobe_events\t\t- Add/remove/show the kernel dynamic events\n" + "\t\t\t Write into this file to define/undefine new trace events.\n" +#endif +#ifdef CONFIG_UPROBE_EVENT + " uprobe_events\t\t- Add/remove/show the userspace dynamic events\n" + "\t\t\t Write into this file to define/undefine new trace events.\n" +#endif +#if defined(CONFIG_KPROBE_EVENT) || defined(CONFIG_UPROBE_EVENT) + "\t accepts: event-definitions (one definition per line)\n" + "\t Format: p|r[:[/]] []\n" + "\t -:[/]\n" +#ifdef CONFIG_KPROBE_EVENT + "\t place: [:][+]|\n" +#endif +#ifdef CONFIG_UPROBE_EVENT + "\t place: :\n" +#endif + "\t args: =fetcharg[:type]\n" + "\t fetcharg: %, @
, @[+|-],\n" + "\t $stack, $stack, $retval, $comm\n" + "\t type: s8/16/32/64, u8/16/32/64, x8/16/32/64, string,\n" + "\t b@/\n" +#endif " events/\t\t- Directory containing all trace event subsystems:\n" " enable\t\t- Write 0/1 to enable/disable tracing of all events\n" " events//\t- Directory containing all trace events for :\n"