Jiri Olsa 5500fa5119 ftrace, perf: Add filter support for function trace event ...

Adding support to filter function trace event via perf
interface. It is now possible to use filter interface
in the perf tool like:

  perf record -e ftrace:function --filter="(ip == mm_*)" ls

The filter syntax is restricted to the the 'ip' field only,
and following operators are accepted '==' '!=' '||', ending
up with the filter strings like:

  ip == f1[, ]f2 ... || ip != f3[, ]f4 ...

with comma ',' or space ' ' as a function separator. If the
space ' ' is used as a separator, the right side of the
assignment needs to be enclosed in double quotes '"', e.g.:

  perf record -e ftrace:function --filter '(ip == do_execve,sys_*,ext*)' ls
  perf record -e ftrace:function --filter '(ip == "do_execve,sys_*,ext*")' ls
  perf record -e ftrace:function --filter '(ip == "do_execve sys_* ext*")' ls

The '==' operator adds trace filter with same effect as would
be added via set_ftrace_filter file.

The '!=' operator adds trace filter with same effect as would
be added via set_ftrace_notrace file.

The right side of the '!=', '==' operators is list of functions
or regexp. to be added to filter separated by space.

The '||' operator is used for connecting multiple filter definitions
together. It is possible to have more than one '==' and '!='
operators within one filter string.

Link: http://lkml.kernel.org/r/[email protected]

Signed-off-by: Jiri Olsa <[email protected]>
Signed-off-by: Steven Rostedt <[email protected]>

2012-02-21 11:08:30 -05:00

..

blktrace.c

switch debugfs to umode_t

2012-01-03 22:54:56 -05:00

ftrace.c

ftrace, perf: Add filter support for function trace event

2012-02-21 11:08:30 -05:00

Kconfig

trace events: Update version number reference to new 3.x scheme for EVENT_POWER_TRACING_DEPRECATED

2011-07-25 09:37:21 +02:00

Makefile

Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2011-10-26 17:03:38 +02:00

power-traces.c

perf: Clean up power events by introducing new, more generic ones

2011-01-04 08:16:54 +01:00

ring_buffer_benchmark.c

tracing: Use NUMA allocation for per-cpu ring buffer pages

2011-06-14 22:04:39 -04:00

ring_buffer.c

Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2011-10-26 17:03:38 +02:00

rpm-traces.c

PM / Runtime: Introduce trace points for tracing rpm_* functions

2011-09-27 22:53:27 +02:00

trace_branch.c

…

trace_clock.c

tracing: Add a counter clock for those that do not trust clocks

2011-09-19 11:35:58 -04:00

trace_entries.h

ftrace: Allow to specify filter field type for ftrace events

2012-02-21 11:08:29 -05:00

trace_event_perf.c

ftrace, perf: Add filter support for function trace event

2012-02-21 11:08:30 -05:00

trace_events_filter_test.h

tracing/filter: Add startup tests for events filter

2011-08-19 14:35:59 -04:00

trace_events_filter.c

ftrace, perf: Add filter support for function trace event

2012-02-21 11:08:30 -05:00

trace_events.c

ftrace, perf: Add add/del tracepoint perf registration actions

2012-02-21 11:08:25 -05:00

trace_export.c

ftrace: Allow to specify filter field type for ftrace events

2012-02-21 11:08:29 -05:00

trace_functions_graph.c

tracing: Still trace filtered irq functions when irq trace is disabled

2011-07-07 22:26:27 -04:00

trace_functions.c

ftrace: Fix regression of :mod:module function enabling

2011-07-07 11:30:08 -04:00

trace_irqsoff.c

Merge branch 'tip/perf/core' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace into perf/core

2011-11-11 08:19:37 +01:00

trace_kdb.c

kdb,ftdump: Remove reference to internal kdb include

2010-10-22 15:34:11 -05:00

trace_kprobe.c

ftrace, perf: Add add/del tracepoint perf registration actions

2012-02-21 11:08:25 -05:00

trace_mmiotrace.c

atomic: use <linux/atomic.h>

2011-07-26 16:49:47 -07:00

trace_nop.c

…

trace_output.c

tracing: Don't use p->len field to determine output in __print_*() functions

2012-02-21 11:08:13 -05:00

trace_output.h

…

trace_printk.c

tracing: Clean up tb_fmt to not give faulty compile warning

2011-08-10 20:36:32 -04:00

trace_sched_switch.c

tracing: Remove obsolete sched_switch tracer

2011-02-08 17:14:56 -05:00

trace_sched_wakeup.c

tracing/latency: Fix header output for latency tracers

2011-11-07 13:48:35 -05:00

trace_selftest_dynamic.c

ftrace: Add self-tests for multiple function trace users

2011-05-18 19:24:51 -04:00

trace_selftest.c

ftrace: Add self-tests for multiple function trace users

2011-05-18 19:24:51 -04:00

trace_stack.c

tracing: Have stack tracing set filtered functions at boot

2011-12-21 07:26:49 -05:00

trace_stat.c

…

trace_stat.h

…

trace_syscalls.c

ftrace, perf: Add add/del tracepoint perf registration actions

2012-02-21 11:08:25 -05:00

trace_workqueue.c

…

trace.c

ftrace: sched_switch plugin is deprecated

2012-02-13 09:14:47 -05:00

trace.h

ftrace, perf: Add filter support for function trace event

2012-02-21 11:08:30 -05:00