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Commit b22f4858 authored by Frederic Weisbecker's avatar Frederic Weisbecker Committed by Ingo Molnar
Browse files

tracing/sysprof: add missing tracing_{start,stop}_record_cmdline() 



Add the missing pair tracing_{start,stop}_record_cmdline() to record well
the cmdline associated with pid.

Changes in v2:

- fix a build error, the sched_switch tracer is needed to record the
  cmdline.

Signed-off-by: default avatarFrederic Weisbecker <fweisbec@gmail.com>
Acked-by: default avatarSteven Rostedt <rostedt@goodmis.org>
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
parent d524e032

kernel/trace/Kconfig

+1 −0
Original line number Diff line number Diff line
@@ -134,6 +134,7 @@ config SYSPROF_TRACER 
	bool "Sysprof Tracer"

	depends on X86

	select TRACING

	select CONTEXT_SWITCH_TRACER

	help

	  This tracer provides the trace needed by the 'Sysprof' userspace

	  tool.

kernel/trace/trace_sysprof.c

+3 −0
Original line number Diff line number Diff line
@@ -238,6 +238,8 @@ static int stack_trace_init(struct trace_array *tr) 
{

	sysprof_trace = tr;



	tracing_start_cmdline_record();



	mutex_lock(&sample_timer_lock);

	start_stack_timers();

	tracer_enabled = 1;
@@ -247,6 +249,7 @@ static int stack_trace_init(struct trace_array *tr) 


static void stack_trace_reset(struct trace_array *tr)

{

	tracing_stop_cmdline_record();

	stop_stack_trace(tr);

}