X-Git-Url: https://git.lttng.org/?a=blobdiff_plain;f=README.md;h=a101048622e42778d9c4e233e21a52fa3b3f6c65;hb=2137460a3901f8abdae909cf72e43e6ac23507ec;hp=39fa442887f5a8ea80c48359152a6c6c29fc7b1c;hpb=341a19e86e14b272d7de8dedc7e4597a96742a06;p=lttng-ust.git diff --git a/README.md b/README.md index 39fa4428..a1010486 100644 --- a/README.md +++ b/README.md @@ -92,11 +92,11 @@ This method links the tracepoint provider with the application, either directly or through a static library (`.a`): 1. Into exactly one unit (C/C++ source file) of your _application_, - define `TRACEPOINT_DEFINE` and include the tracepoint provider + define `LTTNG_UST_TRACEPOINT_DEFINE` and include the tracepoint provider header. 2. Include the tracepoint provider header into all C/C++ files using the provider and insert tracepoints using the `tracepoint()` macro. - 3. Use `-I.` when compiling the unit defining `TRACEPOINT_DEFINE` + 3. Use `-I.` when compiling the unit defining `LTTNG_UST_TRACEPOINT_DEFINE` (e.g., `tp.c`). 4. Link the application with `-ldl` on Linux, or with `-lc` on BSD, and with `-llttng-ust`. @@ -124,7 +124,7 @@ This method decouples the tracepoint provider from the application, making it dynamically loadable. 1. Into exactly one unit of your _application_, define - `TRACEPOINT_DEFINE` _and_ `LTTNG_UST_TRACEPOINT_PROBE_DYNAMIC_LINKAGE`, + `LTTNG_UST_TRACEPOINT_DEFINE` _and_ `LTTNG_UST_TRACEPOINT_PROBE_DYNAMIC_LINKAGE`, then include the tracepoint provider header. 2. Include the tracepoint provider header into all C/C++ files using the provider and insert tracepoints using the `tracepoint()` macro. @@ -171,6 +171,10 @@ human-readable text log. variable `LTTNG_UST_DEBUG` when launching the user application. It can also be enabled at build time by compiling LTTng-UST with `-DLTTNG_UST_DEBUG`. + - `liblttng-ust` abort on critical can be activated by setting the + environment variable `LTTNG_UST_ABORT_ON_CRITICAL` when launching the user + application. It can also be enabled at build time by compiling LTTng-UST with + `-DLTTNG_UST_ABORT_ON_CRITICAL`. - The environment variable `LTTNG_UST_REGISTER_TIMEOUT` can be used to specify how long the applications should wait for the session daemon _registration done_ command before proceeding to execute the @@ -190,7 +194,7 @@ human-readable text log. Since LTTng-UST 2.3, both tracepoints and tracepoint providers can be compiled in C++. To compile tracepoint probes in C++, you need -G++ >= 4.7 or Clang. The C++ compilers need to support C++11. +G++ >= 4.7 or Clang >= 4.0. The C++ compilers need to support C++11. Contact