From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759396AbZCPIVl (ORCPT ); Mon, 16 Mar 2009 04:21:41 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1758653AbZCPIUY (ORCPT ); Mon, 16 Mar 2009 04:20:24 -0400 Received: from hera.kernel.org ([140.211.167.34]:44706 "EHLO hera.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758552AbZCPIUW (ORCPT ); Mon, 16 Mar 2009 04:20:22 -0400 Date: Mon, 16 Mar 2009 08:19:07 GMT From: Frederic Weisbecker To: linux-tip-commits@vger.kernel.org Cc: linux-kernel@vger.kernel.org, hpa@zytor.com, mingo@redhat.com, fweisbec@gmail.com, akpm@linux-foundation.org, tglx@linutronix.de, mingo@elte.hu Reply-To: mingo@redhat.com, hpa@zytor.com, linux-kernel@vger.kernel.org, fweisbec@gmail.com, akpm@linux-foundation.org, tglx@linutronix.de, mingo@elte.hu In-Reply-To: <1237151439-6755-4-git-send-email-fweisbec@gmail.com> References: <1237151439-6755-4-git-send-email-fweisbec@gmail.com> Subject: [tip:tracing/syscalls] tracing/syscalls: select kallsysms Message-ID: Git-Commit-ID: 0ea1c4156bf9e2eb370cc5c6fa6eb112bd844dec X-Mailer: tip-git-log-daemon MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Disposition: inline X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.0 (hera.kernel.org [127.0.0.1]); Mon, 16 Mar 2009 08:19:09 +0000 (UTC) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Commit-ID: 0ea1c4156bf9e2eb370cc5c6fa6eb112bd844dec Gitweb: http://git.kernel.org/tip/0ea1c4156bf9e2eb370cc5c6fa6eb112bd844dec Author: Frederic Weisbecker AuthorDate: Sun, 15 Mar 2009 22:10:38 +0100 Commit: Ingo Molnar CommitDate: Mon, 16 Mar 2009 09:13:17 +0100 tracing/syscalls: select kallsysms Syscall tracing must select kallsysms. The arch code builds a table to find the syscall metadata by syscall number. It needs the syscalls names resolution from the symbol table to know which name found on the syscalls metadatas match a function pointer from the arch sys_call_table. Reported-by: Andrew Morton Reported-by: Ingo Molnar Signed-off-by: Frederic Weisbecker LKML-Reference: <1237151439-6755-4-git-send-email-fweisbec@gmail.com> Signed-off-by: Ingo Molnar --- kernel/trace/Kconfig | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/kernel/trace/Kconfig b/kernel/trace/Kconfig index 95a0ad1..b0a46f8 100644 --- a/kernel/trace/Kconfig +++ b/kernel/trace/Kconfig @@ -182,6 +182,7 @@ config FTRACE_SYSCALLS bool "Trace syscalls" depends on HAVE_FTRACE_SYSCALLS select TRACING + select KALLSYMS help Basic tracer to catch the syscall entry and exit events.