linux-sg2042/Documentation/trace
Omar Sandoval 35abb67de7 tracing: expose current->comm to [ku]probe events
ftrace is very quick to give up on saving the task command line (see
`trace_save_cmdline()`). The workaround for events which really care
about the command line is to explicitly assign it as part of the entry.
However, this doesn't work for kprobe events, as there's no
straightforward way to get access to current->comm. Add a kprobe/uprobe
event variable $comm which provides exactly that.

Link: http://lkml.kernel.org/r/f59b472033b943a370f5f48d0af37698f409108f.1465435894.git.osandov@fb.com

Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2016-06-20 09:54:19 -04:00
..
postprocess x86, tracing, perf: Add trace point for MSR accesses 2015-12-06 12:56:10 +01:00
coresight.txt coresight: stm: adding driver for CoreSight STM component 2016-05-03 14:59:30 -07:00
events-kmem.txt mm-tracepoint: rename page-free events 2012-01-10 16:30:41 -08:00
events-msr.txt x86, tracing, perf: Add trace point for MSR accesses 2015-12-06 12:56:10 +01:00
events-nmi.txt x86: Add NMI duration tracepoints 2013-06-23 11:52:58 +02:00
events-power.txt PM / QoS: Rename device resume latency QoS items 2014-02-11 00:35:23 +01:00
events.txt tracing: Add support for named hist triggers 2016-04-19 18:56:01 -04:00
ftrace-design.txt ftrace: Remove check for HAVE_FUNCTION_TRACE_MCOUNT_TEST 2014-07-18 13:57:01 -04:00
ftrace.txt This includes two new updates for the ftrace infrastructure. 2016-05-18 18:55:19 -07:00
function-graph-fold.vim tracing: Add vim script to enable folding for function_graph traces 2009-08-26 00:32:04 -04:00
intel_th.txt intel_th: Add driver infrastructure for Intel(R) Trace Hub devices 2015-10-04 20:28:58 +01:00
kprobetrace.txt tracing: expose current->comm to [ku]probe events 2016-06-20 09:54:19 -04:00
mmiotrace.txt Documentation: Update mmiotrace.txt 2009-12-20 06:18:23 +01:00
ring-buffer-design.txt doc: fix double words 2014-03-21 13:16:58 +01:00
stm.txt stm class: Introduce an abstraction for System Trace Module devices 2015-10-04 20:28:58 +01:00
tracepoint-analysis.txt mm-tracepoint: fix documentation and examples 2012-01-10 16:30:41 -08:00
tracepoints.txt tracing: Add trace_<tracepoint>_enabled() function 2014-05-07 12:10:51 -04:00
uprobetracer.txt tracing: expose current->comm to [ku]probe events 2016-06-20 09:54:19 -04:00