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perf tools: Resolve idle thread cmdline for perf trace

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The cmd-trace tool used the cmdline file and resolved the idle
thread using a hardcoded check for the 0 task pid.

Now we have a centralized way to do that from perf using
register_idle_thread() API.

Before:
	:0-0     [000]     0.000000: irq_handler_entry: irq=0 handler=name
	:0-0     [000]     0.000000: irq_handler_entry: irq=0 handler=name

After:
	[idle]-0     [000]     0.000000: irq_handler_entry: irq=0 handler=name
	[idle]-0     [000]     0.000000: irq_handler_entry: irq=0 handler=name

Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
LKML-Reference: <1251693921-6579-2-git-send-email-fweisbec@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Frederic Weisbecker 2009-08-31 06:45:19 +02:00 committed by Ingo Molnar
parent 5b447a6a13
commit 3a2684ca58
1 changed files with 1 additions and 0 deletions
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1
tools/perf/builtin-trace.c
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@ -164,6 +164,7 @@ static int __cmd_trace(void)
char *buf;
trace_report();
register_idle_thread(&threads, &last_match);
input = open(input_name, O_RDONLY);
if (input < 0) {