linux/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
events-msr.txt x86, tracing, perf: Add trace point for MSR accesses 2015-12-06 12:56:10 +01:00
events-nmi.txt
events-power.txt
events.txt tracing: Add support for named hist triggers 2016-04-19 18:56:01 -04:00
ftrace-design.txt
ftrace.txt This includes two new updates for the ftrace infrastructure. 2016-05-18 18:55:19 -07:00
function-graph-fold.vim
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
ring-buffer-design.txt
stm.txt stm class: Introduce an abstraction for System Trace Module devices 2015-10-04 20:28:58 +01:00
tracepoint-analysis.txt
tracepoints.txt
uprobetracer.txt tracing: expose current->comm to [ku]probe events 2016-06-20 09:54:19 -04:00