From: Jonathan Rajotte Date: Thu, 23 Jul 2015 20:02:51 +0000 (-0400) Subject: Doc: add LTTNG_UST_CLOCK_PLUGIN to man page X-Git-Tag: v2.7.0-rc2~11 X-Git-Url: https://git.lttng.org./?a=commitdiff_plain;h=4c878882a91392e5aacefd30efacde713747f627;p=lttng-ust.git Doc: add LTTNG_UST_CLOCK_PLUGIN to man page Also add indications on how to use the plugin with lttng-tools. Signed-off-by: Jonathan Rajotte Signed-off-by: Mathieu Desnoyers --- diff --git a/doc/examples/clock-override/README b/doc/examples/clock-override/README index e3ddf22a..aabbee2a 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 4d86bfe0..39849891 100644 --- a/doc/man/lttng-ust.3 +++ b/doc/man/lttng-ust.3 @@ -503,6 +503,12 @@ provides the path to the shared object which will act as the getcpu override plugin. An example can be found in the lttng-ust documentation under 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 in the lttng-ust documentation under +doc/examples/clock-override . +.PP .SH "SEE ALSO"