Jiri Olsa ced39002f5 ftrace, perf: Add support to use function tracepoint in perf ...

Adding perf registration support for the ftrace function event,
so it is now possible to register it via perf interface.

The perf_event struct statically contains ftrace_ops as a handle
for function tracer. The function tracer is registered/unregistered
in open/close actions.

To be efficient, we enable/disable ftrace_ops each time the traced
process is scheduled in/out (via TRACE_REG_PERF_(ADD|DELL) handlers).
This way tracing is enabled only when the process is running.
Intentionally using this way instead of the event's hw state
PERF_HES_STOPPED, which would not disable the ftrace_ops.

It is now possible to use function trace within perf commands
like:

  perf record -e ftrace:function ls
  perf stat -e ftrace:function ls

Allowed only for root.

Link: http://lkml.kernel.org/r/1329317514-8131-6-git-send-email-jolsa@redhat.com

Acked-by: Frederic Weisbecker <fweisbec@gmail.com>
Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>

2012-02-21 11:08:27 -05:00

..

debug

module: struct module_ref should contains long fields

2012-01-13 09:32:14 +10:30

events

Merge branch 'perf/urgent' into perf/core

2012-01-31 13:02:37 +01:00

gcov

gcov: disable CONSTRUCTORS for UML

2011-07-26 16:49:45 -07:00

irq

tracing/softirq: Move __raise_softirq_irqoff() out of header

2012-02-03 09:48:19 -05:00

power

PM / Hibernate: Fix s2disk regression related to freezing workqueues

2012-01-29 20:35:52 +01:00

sched

sched/rt: Fix task stack corruption under __ARCH_WANT_INTERRUPTS_ON_CTXSW

2012-01-27 12:49:41 +01:00

time

Merge branch 'rcu/fixes-for-v3.2' into rcu/urgent

2012-01-16 09:41:18 -08:00

trace

ftrace, perf: Add support to use function tracepoint in perf

2012-02-21 11:08:27 -05:00

.gitignore

…

acct.c

Merge branch 'for-linus2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2012-01-08 12:19:57 -08:00

async.c

kernel/async: remove redundant declaration.

2012-01-13 09:32:18 +10:30

audit_tree.c

audit_tree,rcu: Convert call_rcu(__put_tree) to kfree_rcu()

2011-07-20 14:10:11 -07:00

audit_watch.c

kill path_lookup()

2011-03-14 09:15:23 -04:00

audit.c

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/audit

2012-01-17 16:41:31 -08:00

audit.h

audit: remove AUDIT_SETUP_CONTEXT as it isn't used

2012-01-17 16:16:57 -05:00

auditfilter.c

audit: allow interfield comparison in audit rules

2012-01-17 16:17:01 -05:00

auditsc.c

kernel-doc: fix new warnings in auditsc.c

2012-01-23 08:44:53 -08:00

backtracetest.c

…

bounds.c

memcg: remove direct page_cgroup-to-page pointer

2011-03-23 19:46:28 -07:00

capability.c

Revert "capabitlies: ns_capable can use the cap helpers rather than lsm call"

2012-01-17 10:19:41 -08:00

cgroup_freezer.c

Merge branch 'for-3.3' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup

2012-01-09 12:59:24 -08:00

cgroup.c

Merge branch 'for-3.3' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup

2012-01-09 12:59:24 -08:00

compat.c

kernel: Fix files explicitly needing EXPORT_SYMBOL infrastructure

2011-10-31 19:30:05 -04:00

configs.c

kernel/configs.c: include MODULE_*() when CONFIG_IKCONFIG_PROC=n

2011-07-25 20:57:15 -07:00

cpu_pm.c

cpu_pm: call notifiers during suspend

2011-09-23 12:05:29 +05:30

cpu.c

Merge branch 'pm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

2012-01-08 13:10:57 -08:00

cpuset.c

Merge branch 'for-3.3' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup

2012-01-09 12:59:24 -08:00

crash_dump.c

Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux

2011-11-06 19:44:47 -08:00

cred.c

kernel: Map most files to use export.h instead of module.h

2011-10-31 09:20:12 -04:00

delayacct.c

KVM: Steal time implementation

2011-07-14 12:59:14 +03:00

dma.c

kernel: Map most files to use export.h instead of module.h

2011-10-31 09:20:12 -04:00

elfcore.c

…

exec_domain.c

…

exit.c

sched: Fix ancient race in do_exit()

2012-01-27 11:55:36 +01:00

extable.c

extable, core_kernel_data(): Make sure all archs define _sdata

2011-05-20 08:56:56 +02:00

fork.c

Fix race in process_vm_rw_core

2012-02-02 12:55:17 -08:00

freezer.c

freezer: kill unused set_freezable_with_signal()

2011-11-23 09:28:17 -08:00

futex_compat.c

userns: user namespaces: convert several capable() calls

2011-03-23 19:47:08 -07:00

futex.c

futex: Fix uninterruptible loop due to gate_area

2011-12-31 11:48:28 -08:00

groups.c

kernel: Map most files to use export.h instead of module.h

2011-10-31 09:20:12 -04:00

hrtimer.c

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

2011-11-28 08:43:52 -08:00

hung_task.c

hung_task: fix false positive during vfork

2012-01-03 16:14:32 -08:00

irq_work.c

kernel: fix two implicit header assumptions in irq_work.c

2011-10-31 09:20:12 -04:00

itimer.c

[S390] cputime: add sparse checking and cleanup

2011-12-15 14:56:19 +01:00

jump_label.c

Merge remote-tracking branch 'tip/perf/core' into kvm-updates/3.3

2011-12-27 11:22:24 +02:00

kallsyms.c

Merge branch 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

2011-03-25 17:52:22 -07:00

Kconfig.freezer

…

Kconfig.hz

…

Kconfig.locks

arch:Kconfig.locks Remove unused config option.

2011-04-10 17:01:05 +02:00

Kconfig.preempt

sched: Isolate preempt counting in its own config option

2011-06-10 15:15:40 +02:00

kexec.c

kdump: crashk_res init check for /sys/kernel/kexec_crash_size

2012-01-12 20:13:11 -08:00

kfifo.c

kernel: Map most files to use export.h instead of module.h

2011-10-31 09:20:12 -04:00

kmod.c

Merge branch 'pm-sleep' into pm-for-linus

2011-12-25 23:42:20 +01:00

kprobes.c

kprobes: initialize before using a hlist

2012-01-23 08:38:48 -08:00

ksysfs.c

kernel: ksysfs.c is implicitly using stat.h

2011-10-31 09:20:13 -04:00

kthread.c

freezer: kill unused set_freezable_with_signal()

2011-11-23 09:28:17 -08:00

latencytop.c

kernel: Map most files to use export.h instead of module.h

2011-10-31 09:20:12 -04:00

lockdep_internals.h

…

lockdep_proc.c

kernel: Map most files to use export.h instead of module.h

2011-10-31 09:20:12 -04:00

lockdep_states.h

…

lockdep.c

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

2012-01-06 08:02:58 -08:00

Makefile

PM: Make sysrq-o be available for CONFIG_PM unset

2012-01-14 00:33:03 +01:00

module.c

error: implicit declaration of function 'module_flags_taint'

2012-01-15 16:21:07 -08:00

mutex-debug.c

kernel: Map most files to use export.h instead of module.h

2011-10-31 09:20:12 -04:00

mutex-debug.h

mutex: Use p->on_cpu for the adaptive spin

2011-04-14 08:52:33 +02:00

mutex.c

kernel: Map most files to use export.h instead of module.h

2011-10-31 09:20:12 -04:00

mutex.h

mutex: Use p->on_cpu for the adaptive spin

2011-04-14 08:52:33 +02:00

notifier.c

kernel: Map most files to use export.h instead of module.h

2011-10-31 09:20:12 -04:00

nsproxy.c

kernel: Map most files to use export.h instead of module.h

2011-10-31 09:20:12 -04:00

padata.c

kernel: Map most files to use export.h instead of module.h

2011-10-31 09:20:12 -04:00

panic.c

panic: don't print redundant backtraces on oops

2012-01-12 20:13:11 -08:00

params.c

module_param: avoid bool abuse, add bint for special cases.

2012-01-13 09:32:17 +10:30

pid_namespace.c

sysctl: add the kernel.ns_last_pid control

2012-01-12 20:13:11 -08:00

pid.c

sysctl: add the kernel.ns_last_pid control

2012-01-12 20:13:11 -08:00

posix-cpu-timers.c

[S390] cputime: add sparse checking and cleanup

2011-12-15 14:56:19 +01:00

posix-timers.c

kernel: Map most files to use export.h instead of module.h

2011-10-31 09:20:12 -04:00

printk.c

printk/tracing: Add console output tracing

2012-02-13 13:46:05 -05:00

profile.c

kernel: Map most files to use export.h instead of module.h

2011-10-31 09:20:12 -04:00

ptrace.c

Merge branch 'for-linus' of git://selinuxproject.org/~jmorris/linux-security

2012-01-14 18:36:33 -08:00

range.c

range: fix bogus misuse of module.h to get printk()

2011-10-31 09:20:11 -04:00

rcu.h

rcu: Deconfuse dynticks entry-exit tracing

2011-12-11 10:31:42 -08:00

rcupdate.c

rcu: Detect illegal rcu dereference in extended quiescent state

2011-12-11 10:31:30 -08:00

rcutiny_plugin.h

rcu: Apply ACCESS_ONCE() to rcu_boost() return value

2011-12-11 10:33:19 -08:00

rcutiny.c

rcu: Augment rcu_batch_end tracing for idle and callback state

2011-12-11 10:32:22 -08:00

rcutorture.c

rcu: Add missing __cpuinit annotation in rcutorture code

2012-01-16 09:44:05 -08:00

rcutree_plugin.h

rcu: Apply ACCESS_ONCE() to rcu_boost() return value

2011-12-11 10:33:19 -08:00

rcutree_trace.c

rcu: Track idleness independent of idle tasks

2011-12-11 10:31:24 -08:00

rcutree.c

rcu: Augment rcu_batch_end tracing for idle and callback state

2011-12-11 10:32:22 -08:00

rcutree.h

rcu: Keep invoking callbacks if CPU otherwise idle

2011-12-11 10:32:09 -08:00

relay.c

switch debugfs to umode_t

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

res_counter.c

net: introduce res_counter_charge_nofail() for socket allocations

2012-01-22 15:08:46 -05:00

resource.c

kernel: Map most files to use export.h instead of module.h

2011-10-31 09:20:12 -04:00

rtmutex_common.h

rtmutex: Simplify PI algorithm and make highest prio task get lock

2011-01-27 21:13:51 -05:00

rtmutex-debug.c

lockdep, rtmutex, bug: Show taint flags on error

2011-12-06 08:16:49 +01:00

rtmutex-debug.h

…

rtmutex-tester.c

rtmutex-tester: convert sysdev_class to a regular subsystem

2011-12-14 14:54:22 -08:00

rtmutex.c

Revert "rcu: Permit rt_mutex_unlock() with irqs disabled"

2011-12-11 10:33:18 -08:00

rtmutex.h

…

rwsem.c

kernel: Map most files to use export.h instead of module.h

2011-10-31 09:20:12 -04:00

seccomp.c

seccomp: audit abnormal end to a process due to seccomp

2012-01-17 16:16:55 -05:00

semaphore.c

kernel: Map most files to use export.h instead of module.h

2011-10-31 09:20:12 -04:00

signal.c

tracing: send_sigqueue() needs trace_signal_generate() too

2012-01-13 18:49:02 +01:00

smp.c

kernel: Map most files to use export.h instead of module.h

2011-10-31 09:20:12 -04:00

softirq.c

tracing/softirq: Move __raise_softirq_irqoff() out of header

2012-02-03 09:48:19 -05:00

spinlock.c

kernel: Map most files to use export.h instead of module.h

2011-10-31 09:20:12 -04:00

srcu.c

kernel: Map most files to use export.h instead of module.h

2011-10-31 09:20:12 -04:00

stacktrace.c

kernel: Map most files to use export.h instead of module.h

2011-10-31 09:20:12 -04:00

stop_machine.c

Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux

2011-11-06 19:44:47 -08:00

sys_ni.c

Cross Memory Attach

2011-10-31 17:30:44 -07:00

sys.c

c/r: prctl: add PR_SET_MM codes to set up mm_struct entries

2012-01-12 20:13:13 -08:00

sysctl_binary.c

binary_sysctl(): fix memory leak

2011-12-20 10:25:04 -08:00

sysctl_check.c

xfs: remove subdirectories

2011-08-12 16:21:35 -05:00

sysctl.c

x86: Panic on detection of stack overflow

2011-12-05 11:37:47 +01:00

taskstats.c

Make TASKSTATS require root access

2011-09-19 17:04:37 -07:00

test_kprobes.c

…

time.c

kernel: Map most files to use export.h instead of module.h

2011-10-31 09:20:12 -04:00

timeconst.pl

…

timer.c

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

2012-01-06 07:53:34 -08:00

tracepoint.c

tracepoints/module: Fix disabling tracepoints with taint CRAP or OOT

2012-01-16 11:35:57 -05:00

tsacct.c

[S390] cputime: add sparse checking and cleanup

2011-12-15 14:56:19 +01:00

uid16.c

userns: user namespaces: convert several capable() calls

2011-03-23 19:47:08 -07:00

up.c

kernel: Map most files to use export.h instead of module.h

2011-10-31 09:20:12 -04:00

user_namespace.c

kernel: Map most files to use export.h instead of module.h

2011-10-31 09:20:12 -04:00

user-return-notifier.c

kernel: Map most files to use export.h instead of module.h

2011-10-31 09:20:12 -04:00

user.c

kernel: Map most files to use export.h instead of module.h

2011-10-31 09:20:12 -04:00

utsname_sysctl.c

Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux

2011-11-06 19:44:47 -08:00

utsname.c

kernel: Map most files to use export.h instead of module.h

2011-10-31 09:20:12 -04:00

wait.c

lockdep/waitqueues: Add better annotation

2011-12-21 10:07:39 +01:00

watchdog.c

watchdog: Fix code/comments mismatches

2012-02-11 15:11:33 +01:00

workqueue_sched.h

…

workqueue.c

workqueue: make alloc_workqueue() take printf fmt and args for name

2012-01-10 16:30:54 -08:00