X-Git-Url: https://git.lttng.org/?a=blobdiff_plain;f=README;h=390a719b93083e819c21cdd4866f831053ba2d9a;hb=13fb2d2c14d49d2e5457df7b5f02e99e979464c3;hp=9d4603bce79b2ccd7a0a9bb10b1d787757915722;hpb=f8f5a3788d7317d51933636639f39e199e6eb02b;p=lttng-ust.git diff --git a/README b/README index 9d4603bc..390a719b 100644 --- a/README +++ b/README @@ -24,8 +24,6 @@ PREREQUISITES: * GitWeb: http://lttng.org/cgi-bin/gitweb.cgi?p=userspace-rcu.git;a=summary * Git: git://lttng.org/userspace-rcu.git - - libuuid (for Linux) - For developers using the git tree: This source tree is based on the autotools suite from GNU to simplify @@ -77,7 +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: @@ -99,6 +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: