It _has_ to be preloaded in order to hijack calls. In contrast,
`liblttng-ust` may be linked at build time.
- `liblttng-ust-java`: a simple library that uses JNI to allow tracing
- in Java programs.
+ in Java programs. (Configure with `--enable-jni-interface`).
- `liblttng-ust-java-agent`: a package that includes a JNI library and a
JAR library to provide an LTTng-UST logging back-end for Java
- applications using Java Util Logging or Log4j.
+ applications using Java Util Logging or Log4j. (Configure with
+ `--enable-java-agent-jul` or `--enable-java-agent-log4j` or
+ `--enable-java-agent-all`).
- `liblttng-ust-libc-wrapper`: an example library that can be
preloaded to instrument some calls to libc (currently `malloc()` and
`free()`) and to POSIX threads (mutexes currently instrumented) in
any program without need to recompile it.
- `liblttng-ust-python-agent`: a library used by python-lttngust to allow
- tracing in Python applications.
+ tracing in Python applications. (Configure with `--enable-python-agent`)
- `libringbuffer`: the ring buffer implementation used within LTTng-UST.
- `python-lttngust`: a package to provide an LTTng-UST logging back-end
for Python applications using the standard logging framework.
AS_ECHO
AS_ECHO_N(["Java agent (JUL support): "])
-AS_IF([test "x$java_agent_jul" = "xyes"], [AS_ECHO(["Enabled"])], [AS_ECHO(["Disabled"])])
+AS_IF([test "x$java_agent_jul" = "xyes"], [AS_ECHO(["Enabled"])], [AS_ECHO(["Disabled (Use --enable-java-agent-jul)"])])
AS_ECHO_N(["Java agent (Log4j support): "])
-AS_IF([test "x$java_agent_log4j" = "xyes"], [AS_ECHO(["Enabled"])], [AS_ECHO(["Disabled"])])
+AS_IF([test "x$java_agent_log4j" = "xyes"], [AS_ECHO(["Enabled"])], [AS_ECHO(["Disabled (Use --enable-java-agent-log4j)"])])
AS_ECHO_N(["JNI interface (JNI): "])
-AS_IF([test "x$jni_interface" = "xyes"], [AS_ECHO(["Enabled"])], [AS_ECHO(["Disabled"])])
+AS_IF([test "x$jni_interface" = "xyes"], [AS_ECHO(["Enabled"])], [AS_ECHO(["Disabled (Use --enable-jni-interface)"])])
AS_ECHO_N(["Python ($PYTHON) agent: "])
-AS_IF([test "x$python_agent" = "xyes"], [AS_ECHO(["Enabled"])], [AS_ECHO(["Disabled"])])
+AS_IF([test "x$python_agent" = "xyes"], [AS_ECHO(["Enabled"])], [AS_ECHO(["Disabled (Use --enable-python-agent)"])])
AS_ECHO_N(["sdt.h integration: "])
AS_IF([test "x$with_sdt" = "xyes"], [AS_ECHO(["Enabled"])], [AS_ECHO(["Disabled"])])