kernel/git/stable/linux.git/Documentation/trace/events.txt, branch master

trace doc: convert trace/events.txt to rst format

2018-03-07T17:25:43+00:00

This converts the plain text documentation to reStructuredText format and add it into Sphinx TOC tree. No essential content change. Cc: Steven Rostedt Signed-off-by: Changbin Du Signed-off-by: Jonathan Corbet

tracing: Fix incorrect file name

2018-02-13T21:20:03+00:00

There is no file named 'enabled' in the directory tracing/events. It should be the file 'enable'. Signed-off-by: Xiongwei Song Signed-off-by: Jonathan Corbet

ftrace: Support full glob matching

2016-11-14T21:42:58+00:00

Use glob_match() to support flexible glob wildcards (*,?) and character classes ([) for ftrace. Since the full glob matching is slower than the current partial matching routines(*pat, pat*, *pat*), this leaves those routines and just add MATCH_GLOB for complex glob expression. e.g. ---- [root@localhost tracing]# echo 'sched*group' > set_ftrace_filter [root@localhost tracing]# cat set_ftrace_filter sched_free_group sched_change_group sched_create_group sched_online_group sched_destroy_group sched_offline_group [root@localhost tracing]# echo '[Ss]y[Ss]_*' > set_ftrace_filter [root@localhost tracing]# head set_ftrace_filter sys_arch_prctl sys_rt_sigreturn sys_ioperm SyS_iopl sys_modify_ldt SyS_mmap SyS_set_thread_area SyS_get_thread_area SyS_set_tid_address sys_fork ---- Link: http://lkml.kernel.org/r/147566869501.29136.6462645009894738056.stgit@devbox Acked-by: Namhyung Kim Signed-off-by: Masami Hiramatsu Signed-off-by: Steven Rostedt

tracing: Add support for named hist triggers

2016-04-19T22:56:01+00:00

Allow users to define 'named' hist triggers. All triggers created with the same 'name=xxx' option will update the same shared histogram data. This expands the hist trigger syntax from this: # echo hist:keys=xxx ... [ if filter] > event/trigger to this: # echo hist:name=xxx:keys=xxx ... [ if filter] > event/trigger Named histograms must use a 'compatible' set of keys and values, which means each event added to a set of named triggers must have the same names and types. Reading the 'hist' file of any of the participating events will produce the same output as any other participating event, which is to be expected since they share the same data. Link: http://lkml.kernel.org/r/1dbc84ee3322a75daaf5b3ef1d0cc0a2fb682fc7.1457029949.git.tom.zanussi@linux.intel.com Signed-off-by: Tom Zanussi Tested-by: Masami Hiramatsu Reviewed-by: Namhyung Kim Signed-off-by: Steven Rostedt

tracing: Add support for multiple hist triggers per event

2016-04-19T22:55:59+00:00

Allow users to define any number of hist triggers per trace event. Any number of hist triggers may be added for a given event, which may differ by key, value, or filter. Reading the event's 'hist' file will display the output of all the hist triggers defined on an event concatenated in the order they were defined. Link: http://lkml.kernel.org/r/48a0c8dd34c344571de880fb35e211c6d9a28961.1457029949.git.tom.zanussi@linux.intel.com Signed-off-by: Tom Zanussi Tested-by: Masami Hiramatsu Reviewed-by: Namhyung Kim Signed-off-by: Steven Rostedt

tracing: Add 'hist' trigger Documentation

2016-04-19T22:55:58+00:00

Add documentation and usage examples for 'hist' triggers. Link: http://lkml.kernel.org/r/2e13f35f47fea6d647f0efefccfc9673ea84b29f.1457029949.git.tom.zanussi@linux.intel.com Signed-off-by: Tom Zanussi Tested-by: Masami Hiramatsu Reviewed-by: Namhyung Kim Signed-off-by: Steven Rostedt

tracing: Add some documentation about set_event_pid

2015-11-03T21:37:15+00:00

Update Documentation to include some comments about how to use set_event_pid. Signed-off-by: Steven Rostedt

doc: spelling error changes

2014-05-05T13:32:05+00:00

Fixed multiple spelling errors. Acked-by: Randy Dunlap Signed-off-by: Carlos E. Garcia Signed-off-by: Jiri Kosina

tracing: Add documentation for trace event triggers

2013-12-22T03:02:18+00:00

Provide a basic overview of trace event triggers and document the available trigger commands, along with a few simple examples. Link: http://lkml.kernel.org/r/2595dd9196d7b553049611f2a3f849ca75d650a2.1382622043.git.tom.zanussi@linux.intel.com Signed-off-by: Tom Zanussi Signed-off-by: Steven Rostedt

tracing: Update documentation on tracepoint glob matching

2013-06-20T03:32:06+00:00

b0f1a59a "tracing/filters: Use a different op for glob match" added glob matching to tracepoint filter strings. It uses the ftrace function tracing glob matching facility that allows for the wild card character (*) to be used at the start and/or end of the matching string. But the documentation still states that the filtering only allows for exact string matches. Cc: Li Zefan Signed-off-by: Steven Rostedt