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8fc0c701c5
linux/kernel/trace
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Steven Rostedt 8fc0c701c5 ftrace: show selected functions in set_ftrace_filter 
This patch adds output to show what functions have tracer hooks
attached to them.

  # echo 'sys_open:traceon:4' > /debug/tracing/set_ftrace_filter
  # cat set_ftrace_filter

 #### all functions enabled ####
 sys_open:ftrace_traceon:0000000000000004

  # echo 'do_fork:traceoff:' > set_ftrace_filter
  # cat set_ftrace_filter

 #### all functions enabled ####
 sys_open:ftrace_traceon:0000000000000002
 do_fork:ftrace_traceoff:ffffffffffffffff

Note the 4 changed to a 2. This is because The code was executed twice
since the traceoff was added. If a cat is done again:

 #### all functions enabled ####
 sys_open:ftrace_traceon
 do_fork:ftrace_traceoff:ffffffffffffffff

The number disappears. That is because it will not print a NULL.

Callbacks to allow the tracer to pretty print will be implemented soon.

Signed-off-by: Steven Rostedt <srostedt@redhat.com>
2009-02-16 22:50:06 -05:00
..
blktrace.c tracing/blktrace: move the tracing file to kernel/trace 2009-02-09 10:51:02 +01:00
ftrace.c ftrace: show selected functions in set_ftrace_filter 2009-02-16 22:50:06 -05:00
Kconfig tracing/sysprof: add missing tracing_{start,stop}_record_cmdline() 2009-02-11 12:55:19 +01:00
kmemtrace.c tracing: Introduce trace_buffer_{lock_reserve,unlock_commit} 2009-02-06 01:01:41 +01:00
Makefile tracing/blktrace: move the tracing file to kernel/trace 2009-02-09 10:51:02 +01:00
ring_buffer.c ring-buffer: add tracing_is_on to test if ring buffer is enabled 2009-02-16 22:50:01 -05:00
trace_boot.c tracing: Introduce trace_buffer_{lock_reserve,unlock_commit} 2009-02-06 01:01:41 +01:00
trace_branch.c tracing: remove unneeded variable 2009-02-10 12:32:18 -05:00
trace_functions_graph.c tracing: provide correct return value after outputting the event 2009-02-10 12:32:33 -05:00
trace_functions.c ftrace: add traceon traceoff commands to enable/disable the buffers 2009-02-16 22:50:04 -05:00
trace_hw_branches.c tracing: fix typos in comments 2009-02-10 12:32:35 -05:00
trace_irqsoff.c trace: Remove unused trace_array_cpu parameter 2009-02-05 14:35:47 +01:00
trace_mmiotrace.c tracing: Introduce trace_buffer_{lock_reserve,unlock_commit} 2009-02-06 01:01:41 +01:00
trace_nop.c trace: Call tracing_reset_online_cpus before tracer->init() 2009-02-06 01:01:41 +01:00
trace_output.c Merge branch 'tip/tracing/core/devel' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-2.6-trace into tracing/ftrace 2009-02-09 10:35:12 +01:00
trace_output.h trace: make the trace_event callbacks return enum print_line_t 2009-02-04 20:48:39 +01:00
trace_power.c tracing/power: move the power trace headers to a dedicated file 2009-02-09 10:51:38 +01:00
trace_sched_switch.c trace: Call tracing_reset_online_cpus before tracer->init() 2009-02-06 01:01:41 +01:00
trace_sched_wakeup.c trace: Remove unused trace_array_cpu parameter 2009-02-05 14:35:47 +01:00
trace_selftest_dynamic.c ftrace: fix dynamic ftrace selftest 2008-05-23 21:13:23 +02:00
trace_selftest.c tracing/function-graph-tracer: provide a selftest for the function graph tracer 2009-02-09 10:51:37 +01:00
trace_stack.c trace: better use of stack_trace_enabled for boot up code 2008-12-18 12:56:56 +01:00
trace_stat.c tracing: trace_stat.c cleanup 2009-01-15 11:31:21 +01:00
trace_stat.h tracing/ftrace: separate events tracing and stats tracing engine 2009-01-14 12:11:37 +01:00
trace_sysprof.c Merge branches 'tracing/ftrace', 'tracing/ring-buffer', 'tracing/sysprof', 'tracing/urgent' and 'linus' into tracing/core 2009-02-13 10:25:18 +01:00
trace_workqueue.c trace_workqueue: use percpu data for workqueue stat 2009-01-20 13:06:59 +01:00
trace.c tracing: fix sparse warning: attribute function with __acquires/__releases 2009-02-11 10:15:42 +01:00
trace.h tracing: splice support for tracing_pipe 2009-02-09 12:24:34 -05:00