The ust_clock_source was static in clock.h header file.
Thus, tracectl.c was not able to modify that variable for
the trace clock read function. Bad timestamp was always
returned if CLOCK_TRACE was not available.
v2:
Comment by Mathieu Desnoyers, set clock source variable
to extern in clock.h
Signed-off-by: David Goulet <[email protected]>
---
include/ust/clock.h | 2 +-
libust/tracectl.c | 2 ++
2 files changed, 3 insertions(+), 1 deletions(-)
diff --git a/include/ust/clock.h b/include/ust/clock.h
index ac0a2d5..04785fc 100644
--- a/include/ust/clock.h
+++ b/include/ust/clock.h
@@ -49,7 +49,7 @@ union lttng_timespec {
};
#endif /* __i386__ || __x86_64__ */
-static int ust_clock_source;
+extern int ust_clock_source;
/* Choosing correct trace clock */
#if __PPC__
diff --git a/libust/tracectl.c b/libust/tracectl.c
index 4f016bb..b73fa7c 100644
--- a/libust/tracectl.c
+++ b/libust/tracectl.c
@@ -74,6 +74,8 @@ static struct cds_list_head ust_socks =
CDS_LIST_HEAD_INIT(ust_socks);
/* volatile because shared between the listener and the main thread */
int buffers_to_export = 0;
+int ust_clock_source;
+
static long long make_pidunique(void)
{
s64 retval;
--
1.7.3.5
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