Update README

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>

diff --git a/README b/README
index f4e3368cec50bad0d3f88465d565193617d6abf5..1fd49b68dea49d650b394c064a4c43f73a5bbabe 100644 (file)
--- a/README
+++ b/README
@@ -1,7 +1,7 @@
 LTTng 2.0 modules
 
 Mathieu Desnoyers
 LTTng 2.0 modules
 
 Mathieu Desnoyers

-July 19, 2011
+February 8, 2012

 
 LTTng 2.0 kernel modules build against a vanilla or distribution kernel, without
 need for additional patches. Other features:
 
 LTTng 2.0 kernel modules build against a vanilla or distribution kernel, without
 need for additional patches. Other features:


@@ -36,9 +36,6 @@ the kernel modules when needed. Use Babeltrace to print traces as a
 human-readable text log. These tools are available at the following URL:
 http://lttng.org/lttng2.0
 
 human-readable text log. These tools are available at the following URL:
 http://lttng.org/lttng2.0
 

-Please note that the LTTng-UST 2.0 (user-space tracing counterpart of LTTng 2.0)
-is still in active development and not released yet.
-

 So far, it has been tested on vanilla Linux kernels 2.6.38, 2.6.39 and 3.0 (on
 x86 32/64-bit, and powerpc 32-bit at the moment, build tested on ARM). It should
 work fine with newer kernels and other architectures, but expect build issues
 So far, it has been tested on vanilla Linux kernels 2.6.38, 2.6.39 and 3.0 (on
 x86 32/64-bit, and powerpc 32-bit at the moment, build tested on ARM). It should
 work fine with newer kernels and other architectures, but expect build issues


@@ -49,6 +46,10 @@ note that lttng-modules 2.0 can build on a Linux kernel patched with the LTTng
 0.x patchset, but the lttng-modules 2.0 replace the lttng-modules 0.x, so both
 tracers cannot be installed at the same time for a given kernel version.
 
 0.x patchset, but the lttng-modules 2.0 replace the lttng-modules 0.x, so both
 tracers cannot be installed at the same time for a given kernel version.
 

+LTTng-modules depends on having kallsyms enabled in the kernel it is
+built against. Ideally, if you want to have system call tracing, the
+"Trace Syscalls" feature should be enabled too. 
+

 * Note about Perf PMU counters support
 
 Each PMU counter has its zero value set when it is attached to a context with
 * Note about Perf PMU counters support
 
 Each PMU counter has its zero value set when it is attached to a context with