X-Git-Url: http://git.liburcu.org/?a=blobdiff_plain;f=LTTngManual.html;h=60e6dff9f9bf4e48dbe31832981727c6368a746f;hb=9c7696b8589e76aed870b15cabd09a162d468621;hp=58c49470a4bbfe3a3770a08a9e4c9c88d084a807;hpb=81654ff75bb53ee734f97e6307c54074f23c0e17;p=lttv.git diff --git a/LTTngManual.html b/LTTngManual.html index 58c49470..60e6dff9 100644 --- a/LTTngManual.html +++ b/LTTngManual.html @@ -8,7 +8,7 @@
+LTTng, UST and LTTV are developed by an open community. LTTng is released under +a dual Gnu LGPLv2.1/GPLv2 license, except for very few kernel-specific files +which are derived work from the Linux kernel. +
+LTTV is available under the Gnu GPLv2. The low-level LTTV trace reading library +is released under Gnu LGPLv2.1. +
+The Eclipse LTTng trace analysis tool is released under the EPL and uses the +LTTV trace reading library (LGPLv2.1). +
+The UST (Userspace Tracing) and the Userspace RCU libraries are released under +the LGPLv2.1 license, which allows linking with non-GPL (BSD, proprietary...) +applications. The associated headers are released under MIT-style/BSD-style +licenses. +
+Please refer to each particular file licensing for details. +
Make sure you selected the kernel menuconfig option : -or <*> Support logging events from userspace + <M> or <*> Support logging events from userspace And that the ltt-userspace-event kernel module is loaded if selected as a module. Simple userspace tracing is available through -echo "some text to record" > /mnt/debugfs/ltt/write_event +echo "some text to record" > /mnt/debugfs/ltt/write_event It will appear in the trace under event : channel : userspace