#endif
_stp_free_percpu(stp_time);
+ stp_time = NULL;
}
}
{
int ret = 0;
+ _stp_kill_time();
+
stp_time = _stp_alloc_percpu(sizeof(stp_time_t));
if (unlikely(stp_time == 0))
return -1;
}
}
#endif
- if (ret)
+ if (ret)
_stp_kill_time();
return ret;
}
stp_time_t *time;
int i = 0;
+ if (!stp_time)
+ return -1;
+
preempt_disable();
time = per_cpu_ptr(stp_time, smp_processor_id());
_stp_unregister_ctl_channel();
if (_stp_utt)
utt_trace_remove(_stp_utt);
- _stp_kill_time(); /* Go to a beach. Drink a beer. */
_stp_print_cleanup(); /* free print buffers */
_stp_mem_debug_done();
dbug_trans(1, "---- CLOSED ----\n");
dbug_trans(1, "Using %d subbufs of size %d\n", _stp_nsubbufs, _stp_subbuf_size);
}
- /* initialize timer code */
- if (_stp_init_time())
- return -1;
-
#if !defined (STP_OLD_TRANSPORT) || defined (STP_BULKMODE)
/* open utt (relayfs) channel to send data to userspace */
_stp_utt = _stp_utt_open();
if (_stp_utt)
utt_trace_remove(_stp_utt);
err0:
- _stp_kill_time();
return -1;
}
// Public License (GPL); either version 2, or (at your option) any
// later version.
-%{
-#include <linux/time.h>
-%}
-
/**
* sfunction get_cycles - Processor cycle count.
*
THIS->__retvalue = (int64_t) c;
%}
-
-/**
- * sfunction gettimeofday_ns - Number of nanoseconds since UNIX epoch.
- *
- * Return the number of nanoseconds since the UNIX epoch.
- */
-function gettimeofday_ns:long () %{ /* pure */
- /* NOTE: we can't use do_gettimeofday because we could be called from a
- * context where xtime_lock is already held. See bug #2525. */
- THIS->__retvalue = _stp_gettimeofday_ns();
-%}
-
-/**
- * sfunction gettimeofday_us - Number of microseconds since UNIX epoch.
- *
- * Return the number of microseconds since the UNIX epoch.
- */
-function gettimeofday_us:long () {
- return gettimeofday_ns() / 1000;
-}
-
-/**
- * sfunction gettimeofday_ms - Number of milliseconds since UNIX epoch.
- *
- * Return the number of milliseconds since the UNIX epoch.
- */
-function gettimeofday_ms:long () {
- return gettimeofday_ns() / 1000000;
-}
-
-/**
- * sfunction gettimeofday_s - Number of seconds since UNIX epoch.
- *
- * Return the number of seconds since the UNIX epoch.
- */
-function gettimeofday_s:long () {
- return gettimeofday_ns() / 1000000000;
-}
-
// likewise jiffies, monotonic_clock ...
--- /dev/null
+// timestamp tapset -- gettimeofday variants
+// Copyright (C) 2005-2009 Red Hat Inc.
+// Copyright (C) 2006 Intel Corporation.
+//
+// This file is part of systemtap, and is free software. You can
+// redistribute it and/or modify it under the terms of the GNU General
+// Public License (GPL); either version 2, or (at your option) any
+// later version.
+
+function _gettimeofday_init:long() %{
+ THIS->__retvalue = _stp_init_time(); /* Kick off the Big Bang. */
+%}
+
+probe begin(-0x8000000000000000) {
+ if (_gettimeofday_init() != 0)
+ error("couldn't initialize gettimeofday")
+}
+
+function _gettimeofday_kill() %{
+ _stp_kill_time(); /* Go to a beach. Drink a beer. */
+%}
+
+probe end(0x7FFFFFFFFFFFFFFF), error(0x7FFFFFFFFFFFFFFF) {
+ _gettimeofday_kill()
+}
+
+
+/**
+ * sfunction gettimeofday_ns - Number of nanoseconds since UNIX epoch.
+ *
+ * Return the number of nanoseconds since the UNIX epoch.
+ */
+function gettimeofday_ns:long () %{ /* pure */
+ /* NOTE: we can't use do_gettimeofday because we could be called from a
+ * context where xtime_lock is already held. See bug #2525. */
+ THIS->__retvalue = _stp_gettimeofday_ns();
+ if (THIS->__retvalue < 0)
+ CONTEXT->last_error = "gettimeofday not initialized";
+%}
+
+/**
+ * sfunction gettimeofday_us - Number of microseconds since UNIX epoch.
+ *
+ * Return the number of microseconds since the UNIX epoch.
+ */
+function gettimeofday_us:long () {
+ return gettimeofday_ns() / 1000;
+}
+
+/**
+ * sfunction gettimeofday_ms - Number of milliseconds since UNIX epoch.
+ *
+ * Return the number of milliseconds since the UNIX epoch.
+ */
+function gettimeofday_ms:long () {
+ return gettimeofday_ns() / 1000000;
+}
+
+/**
+ * sfunction gettimeofday_s - Number of seconds since UNIX epoch.
+ *
+ * Return the number of seconds since the UNIX epoch.
+ */
+function gettimeofday_s:long () {
+ return gettimeofday_ns() / 1000000000;
+}
+
+// likewise jiffies, monotonic_clock ...