[lttng-dev] sched_process_exec

[Paul_Woegerer@mentor.com (Woegerer, Paul)]

Hi,

Is there a reason why instrumentation/events/lttng-module/sched.h does 
not include TRACE_EVENT(sched_process_exec) ?

The patch below adds the missing tracepoint definition (tested with 
kernel 3.4.6-2.10).

diff --git a/instrumentation/events/lttng-module/sched.h 
b/instrumentation/events/lttng-module/sched.h
index b68616e..ef791ac 100644
--- a/instrumentation/events/lttng-module/sched.h
+++ b/instrumentation/events/lttng-module/sched.h
@@ -314,6 +314,32 @@ TRACE_EVENT(sched_process_fork,
  )

  /*
+ * Tracepoint for exec:
+ */
+TRACE_EVENT(sched_process_exec,
+
+       TP_PROTO(struct task_struct *p, pid_t old_pid,
+                struct linux_binprm *bprm),
+
+       TP_ARGS(p, old_pid, bprm),
+
+       TP_STRUCT__entry(
+               __string(       filename,       bprm->filename  )
+               __field(        pid_t,          pid             )
+               __field(        pid_t,          old_pid         )
+       ),
+
+       TP_fast_assign(
+               tp_strcpy(filename, bprm->filename);
+               tp_assign(pid, p->pid)
+               tp_assign(old_pid, old_pid)
+       ),
+
+       TP_printk("filename=%s pid=%d old_pid=%d", __get_str(filename),
+                 __entry->pid, __entry->old_pid)
+)
+
+/*
   * XXX the below sched_stat tracepoints only apply to 
SCHED_OTHER/BATCH/IDLE
   *     adding sched_stat support to SCHED_FIFO/RR would be welcome.
   */

-- 
Paul Woegerer | SW Development Engineer
http://go.mentor.com/sourceryanalyzer

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