ENVIRONMENT VARIABLES
---------------------
`LTTNG_HOME`::
- Overrides the `$HOME` environment variable. Useful when the user
- running the instrumented application has a non-writable home
+ Alternative user's home directory. This variable is useful when the
+ user running the instrumented application has a non-writable home
directory.
+
Unix sockets used for the communication between `liblttng-ust` and the
are located in a specific directory under `$LTTNG_HOME` (or `$HOME` if
`$LTTNG_HOME` is not set).
+`LTTNG_UST_CLOCK_PLUGIN`::
+ Path to the shared object which acts as the clock override plugin.
+ An example of such a plugin can be found in the LTTng-UST
+ documentation under
+ https://github.com/lttng/lttng-ust/tree/master/doc/examples/clock-override[`examples/clock-override`].
+
`LTTNG_UST_DEBUG`::
- Activate `liblttng-ust` debug and error output.
+ Activates `liblttng-ust`'s debug and error output if set to `1`.
+
+`LTTNG_UST_GETCPU_PLUGIN`::
+ Path to the shared object which acts as the `getcpu()` override
+ plugin. An example of such a plugin can be found in the LTTng-UST
+ documentation under
+ https://github.com/lttng/lttng-ust/tree/master/doc/examples/getcpu-override[`examples/getcpu-override`].
`LTTNG_UST_REGISTER_TIMEOUT`::
- Specify how long the applications should wait for the
- _registration done_ session daemon command before proceeding to
- execute the main program (milliseconds).
+ Waiting time for the _registration done_ session daemon command
+ before proceeding to execute the main program (milliseconds).
+
-The value 0 means _do not wait_. The value -1 means _wait forever_.
-Setting this environment variable to 0 is recommended for applications
+The value `0` means _do not wait_. The value `-1` means _wait forever_.
+Setting this environment variable to `0` is recommended for applications
with time constraints on the process startup time.
+
Default: {lttng_ust_register_timeout}.
`LTTNG_UST_WITHOUT_BADDR_STATEDUMP`::
- Prevent `liblttng-ust` from performing a base address state dump
- (see the <<state-dump,LTTng-UST state dump>> section above).
-
-`LTTNG_UST_GETCPU_PLUGIN`::
- Path to the shared object which acts as the `getcpu()` override
- plugin. An example of such a plugin can be found in the LTTng-UST
- documentation under
- https://github.com/lttng/lttng-ust/tree/master/doc/examples/getcpu-override[`examples/getcpu-override`].
-
-`LTTNG_UST_CLOCK_PLUGIN`::
- Path to the shared object which acts as the clock override plugin.
- An example of such a plugin can be found in the LTTng-UST
- documentation under
- https://github.com/lttng/lttng-ust/tree/master/doc/examples/clock-override[`examples/clock-override`].
+ Prevents `liblttng-ust` from performing a base address state dump
+ (see the <<state-dump,LTTng-UST state dump>> section above) if
+ set to `1`.
include::common-footer.txt[]