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authorZhaolei <zhaolei@cn.fujitsu.com>2009-04-13 04:02:34 -0400
committerIngo Molnar <mingo@elte.hu>2009-04-13 20:30:36 -0400
commit557055bebe9212dfa6b9f5df811dfd0dac77ec55 (patch)
treebd396effa5011a2fc687a3cd887f8235a1d1977e
parenta3d03ecaf9fe722bf96e4ef4a2f5e42ef652ddeb (diff)
tracing: Fix branch tracer header
Before patch: # tracer: branch # # TASK-PID CPU# TIMESTAMP FUNCTION # | | | | | <...>-2981 [000] 24008.872738: [ ok ] trace_irq_handler_exit:irq_event_types.h:41 <...>-2981 [000] 24008.872742: [ ok ] note_interrupt:spurious.c:229 ... After patch: # tracer: branch # # TASK-PID CPU# TIMESTAMP CORRECT FUNC:FILE:LINE # | | | | | | <...>-2985 [000] 26329.142970: [ ok ] slab_free:slub.c:1776 <...>-2985 [000] 26329.142972: [ ok ] trace_kmem_cache_free:kmem_event_types.h:191 ... Signed-off-by: Zhao Lei <zhaolei@cn.fujitsu.com> Acked-by: Frederic Weisbecker <fweisbec@gmail.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Tom Zanussi <tzanussi@gmail.com> LKML-Reference: <49E2F19A.3040006@cn.fujitsu.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
-rw-r--r--kernel/trace/trace_branch.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/kernel/trace/trace_branch.c b/kernel/trace/trace_branch.c
index ad8c22efff41..8333715e4066 100644
--- a/kernel/trace/trace_branch.c
+++ b/kernel/trace/trace_branch.c
@@ -155,6 +155,13 @@ static enum print_line_t trace_branch_print(struct trace_iterator *iter,
155 return TRACE_TYPE_HANDLED; 155 return TRACE_TYPE_HANDLED;
156} 156}
157 157
158static void branch_print_header(struct seq_file *s)
159{
160 seq_puts(s, "# TASK-PID CPU# TIMESTAMP CORRECT"
161 " FUNC:FILE:LINE\n");
162 seq_puts(s, "# | | | | | "
163 " |\n");
164}
158 165
159static struct trace_event trace_branch_event = { 166static struct trace_event trace_branch_event = {
160 .type = TRACE_BRANCH, 167 .type = TRACE_BRANCH,
@@ -169,6 +176,7 @@ static struct tracer branch_trace __read_mostly =
169#ifdef CONFIG_FTRACE_SELFTEST 176#ifdef CONFIG_FTRACE_SELFTEST
170 .selftest = trace_selftest_startup_branch, 177 .selftest = trace_selftest_startup_branch,
171#endif /* CONFIG_FTRACE_SELFTEST */ 178#endif /* CONFIG_FTRACE_SELFTEST */
179 .print_header = branch_print_header,
172}; 180};
173 181
174__init static int init_branch_tracer(void) 182__init static int init_branch_tracer(void)