X-Git-Url: http://git.lttng.org/?a=blobdiff_plain;f=README;h=390a719b93083e819c21cdd4866f831053ba2d9a;hb=6ca18e666d018ec79d517485a310c542cf735fa9;hp=52aebd8940c7cf01770f949beb944f2e63b54a1a;hpb=9501d22f55b3a23f382f631c99b2325d1419b5da;p=lttng-ust.git diff --git a/README b/README index 52aebd89..390a719b 100644 --- a/README +++ b/README @@ -16,7 +16,7 @@ PREREQUISITES: - liburcu Userspace RCU library, by Mathieu Desnoyers and Paul E. McKenney - -> This release depends on liburcu v0.6.6 + -> This release depends on liburcu v0.7.2 * Debian/Ubuntu package: liburcu-dev * Website: http://lttng.org/urcu @@ -75,7 +75,7 @@ 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: @@ -97,6 +97,10 @@ 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: