From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756173AbZBQFSc (ORCPT ); Tue, 17 Feb 2009 00:18:32 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752973AbZBQFOX (ORCPT ); Tue, 17 Feb 2009 00:14:23 -0500 Received: from hrndva-omtalb.mail.rr.com ([71.74.56.122]:42043 "EHLO hrndva-omtalb.mail.rr.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752198AbZBQFOJ (ORCPT ); Tue, 17 Feb 2009 00:14:09 -0500 Message-Id: <20090217051407.859963646@goodmis.org> References: <20090217051227.957864159@goodmis.org> User-Agent: quilt/0.46-1 Date: Tue, 17 Feb 2009 00:12:41 -0500 From: Steven Rostedt To: linux-kernel@vger.kernel.org Cc: Ingo Molnar , Andrew Morton , Peter Zijlstra , Frederic Weisbecker , Arnaldo Carvalho de Melo , Steven Rostedt Subject: [PATCH 14/15] ftrace: add pretty print to selected fuction traces Content-Disposition: inline; filename=0014-ftrace-add-pretty-print-to-selected-fuction-traces.patch Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Steven Rostedt This patch adds a call back for the tracers that have hooks to selected functions. This allows the tracer to show better output in the set_ftrace_filter file. Signed-off-by: Steven Rostedt --- include/linux/ftrace.h | 6 ++++++ kernel/trace/ftrace.c | 3 +++ 2 files changed, 9 insertions(+), 0 deletions(-) diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h index 13918c4..b331e21 100644 --- a/include/linux/ftrace.h +++ b/include/linux/ftrace.h @@ -106,12 +106,18 @@ struct ftrace_func_command { /* asm/ftrace.h must be defined for archs supporting dynamic ftrace */ #include +struct seq_file; + struct ftrace_hook_ops { void (*func)(unsigned long ip, unsigned long parent_ip, void **data); int (*callback)(unsigned long ip, void **data); void (*free)(void **data); + int (*print)(struct seq_file *m, + unsigned long ip, + struct ftrace_hook_ops *ops, + void *data); }; extern int diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c index 1e05884..6533c1d 100644 --- a/kernel/trace/ftrace.c +++ b/kernel/trace/ftrace.c @@ -834,6 +834,9 @@ static int t_hash_show(struct seq_file *m, void *v) rec = hlist_entry(hnd, struct ftrace_func_hook, node); + if (rec->ops->print) + return rec->ops->print(m, rec->ip, rec->ops, rec->data); + kallsyms_lookup(rec->ip, NULL, NULL, NULL, str); seq_printf(m, "%s:", str); -- 1.5.6.5 --