X-Git-Url: http://git.lttng.org/?a=blobdiff_plain;ds=sidebyside;f=README;h=1ff23f69bf29a4bbb9df4e2d5b2ddf7d596922fa;hb=5ce002183cf11c88ab35b2d5bcd39556e824f374;hp=5de1885ab94a3b3b419deeb73069b233a0272b2e;hpb=5fa6190fd37f34d6b81598b9fbf4a8b9d8f6c844;p=lttng-ust.git diff --git a/README b/README index 5de1885a..1ff23f69 100644 --- a/README +++ b/README @@ -78,7 +78,7 @@ USAGE: - Include the tracepoint provider header into all C files using the provider. - Example: - tests/hello/ hello.c tp.c ust_tests_hello.h Makefile.example.* + - tests/hello/ hello.c tp.c ust_tests_hello.h Makefile.example.* 2) Compile the Tracepoint Provider separately from the application, using dynamic linking: @@ -100,6 +100,10 @@ USAGE: - Enable instrumentation and control tracing with the "lttng" command from lttng-tools. See lttng-tools doc/quickstart.txt. + - Note about dlclose() usage: it is not safe to use dlclose on a + provider shared object that is being actively used for tracing due + to a lack of reference counting from lttng-ust to the used shared + object. ENVIRONMENT VARIABLES: