From: dv <dv@openbsd.org>
Date: Wed, 23 Jun 2021 11:24:01 +0000 (+0000)
Subject: btrace(8): init and update timespec for BEGIN/END event
X-Git-Url: http://artulab.com/gitweb/?a=commitdiff_plain;h=24fbf86f117bf9bd4c63d430f09435a9807cf608;p=openbsd

btrace(8): init and update timespec for BEGIN/END event

BEGIN and END use a fake dt(4) event, so in order to use the nsecs
var or time() it needs a timespec set. Init for BEGIN and update
at END.

ok mpi@
---

diff --git a/usr.sbin/btrace/btrace.c b/usr.sbin/btrace/btrace.c
index 15c67aba085..961500a3a68 100644
--- a/usr.sbin/btrace/btrace.c
+++ b/usr.sbin/btrace/btrace.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: btrace.c,v 1.36 2021/06/07 12:55:19 dv Exp $ */
+/*	$OpenBSD: btrace.c,v 1.37 2021/06/23 11:24:01 dv Exp $ */
 
 /*
  * Copyright (c) 2019 - 2020 Martin Pieuchot <mpi@openbsd.org>
@@ -442,6 +442,7 @@ rules_setup(int fd)
 	memcpy(&bt_devt.dtev_comm, getprogname(), sizeof(bt_devt.dtev_comm));
 	bt_devt.dtev_pid = getpid();
 	bt_devt.dtev_tid = getthrid();
+	clock_gettime(CLOCK_REALTIME, &bt_devt.dtev_tsp);
 
 	if (rbegin)
 		rule_eval(rbegin, &bt_devt);
@@ -502,6 +503,9 @@ rules_teardown(int fd)
 	if (dokstack)
 		kelf_close();
 
+	/* Update "fake" event for BEGIN/END */
+	clock_gettime(CLOCK_REALTIME, &bt_devt.dtev_tsp);
+
 	if (rend)
 		rule_eval(rend, &bt_devt);
 	else {