[lttng-dev] [PATCH v2 lttng-ust 2/2] Doc: add LTTNG_UST_CLOCK_PLUGIN to man page

[jonathan.rajotte-julien@efficios.com (Jonathan Rajotte)]

Also add indications on how to use the plugin with lttng-tools.

Signed-off-by: Jonathan Rajotte <jonathan.rajotte-julien at efficios.com>
---
 doc/examples/clock-override/README | 4 ++++
 doc/man/lttng-ust.3                | 5 +++++
 2 files changed, 9 insertions(+)

diff --git a/doc/examples/clock-override/README b/doc/examples/clock-override/README
index e3ddf22..aabbee2 100644
--- a/doc/examples/clock-override/README
+++ b/doc/examples/clock-override/README
@@ -2,3 +2,7 @@ This clock override example shows how to implement and load a clock
 override plugin for LTTng-UST. This can be useful in cases where direct
 hardware access is available for architecture-specific clocks, and where
 it should be used rather than the Linux kernel Monotonic clock.
+
+When using LTTng-tools keep in mind that lttng-sessiond uses lttng-ust's clock
+definition and functions. Thus LTTNG_UST_CLOCK_PLUGIN needs to be defined when
+launching lttng-sessiond.
diff --git a/doc/man/lttng-ust.3 b/doc/man/lttng-ust.3
index e66ab88..8b399aa 100644
--- a/doc/man/lttng-ust.3
+++ b/doc/man/lttng-ust.3
@@ -502,6 +502,11 @@ Used by the getcpu override plugin system. The environment variable
 provides the path to the shared object which will act as the getcpu override
 plugin. An example can be found under doc/examples/getcpu-override .
 .PP
+.IP "LTTNG_UST_CLOCK_PLUGIN"
+Used by the clock override plugin system. The environment variable
+provides the path to the shared object wich will act as the clock override
+plugin. An example can be found under doc/examples/clock-override .
+.PP
 
 .SH "SEE ALSO"
 
-- 
2.1.4