trace2: refactor setting process starting time

Create trace2_initialize_clock() and call from main() to capture
process start time in isolation and before other sub-systems are
ready.

Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 6 insertions, 1 deletions

diff --git a/trace2.c b/trace2.c
index ccccd4ef09..6dd51e6aa5 100644
--- a/trace2.c
+++ b/trace2.c
@@ -142,6 +142,11 @@ static void tr2main_signal_handler(int signo)
 	raise(signo);
 }
 
+void trace2_initialize_clock(void)
+{
+	tr2tls_start_process_clock();
+}
+
 void trace2_initialize_fl(const char *file, int line)
 {
 	struct tr2_tgt *tgt_j;
@@ -428,7 +433,7 @@ void trace2_thread_start_fl(const char *file, int line, const char *thread_name)
 	us_now = getnanotime() / 1000;
 	us_elapsed_absolute = tr2tls_absolute_elapsed(us_now);
 
-	tr2tls_create_self(thread_name);
+	tr2tls_create_self(thread_name, us_now);
 
 	for_each_wanted_builtin (j, tgt_j)
 		if (tgt_j->pfn_thread_start_fl)