[PATCHv3 0/8] ftrace, perf: Adding support to use function trace

From: Jiri Olsa
Date: Wed Dec 21 2011 - 06:49:11 EST


hi,
here's another version of perf support for function trace
with filter.

attached patches:
1/8 ftrace: Change filter/notrace set functions to return exit code
2/8 ftrace: Fix possible NULL dereferencing in __ftrace_hash_rec_update
3/8 ftrace: Add enable/disable ftrace_ops control interface
4/8 ftrace, perf: Add open/close tracepoint perf registration actions
5/8 ftrace, perf: Add add/del tracepoint perf registration actions
6/8 ftrace, perf: Add support to use function tracepoint in perf
7/8 ftrace, perf: Distinguish ftrace function event field type
8/8 ftrace, perf: Add filter support for function trace event

v3 changes:
3/8 - renamed __add/remove_ftrace_ops
- fixed preemtp_enable/recursion_clear order in ftrace_ops_control_func
- renamed/commented API functions - enable/disable_ftrace_function

ommited graph tracer workarounf patch 10/10

v2 changes:
01/10 - keeping the old fix instead of adding hash_has_contents func
I'll send separating patchset for this
02/10 - using different way to avoid the issue (3/9 in v1)
03/10 - using the way proposed by Steven for controling ftrace_ops
(4/9 in v1)
06/10 - added check ensuring the ftrace:function event could be used by
root only (7/9 in v1)
08/10 - added more description (8/9 in v1)
09/10 - changed '&&' operator to '||' which seems more suitable
in this case (9/9 in v1)

thanks,
jirka
---
include/linux/ftrace.h | 46 ++++++++-
include/linux/ftrace_event.h | 9 +-
include/linux/perf_event.h | 3 +
kernel/trace/ftrace.c | 135 ++++++++++++++++++++---
kernel/trace/trace.h | 11 ++-
kernel/trace/trace_event_perf.c | 212 +++++++++++++++++++++++++++++-------
kernel/trace/trace_events.c | 12 ++-
kernel/trace/trace_events_filter.c | 116 ++++++++++++++++++-
kernel/trace/trace_export.c | 53 ++++++++-
kernel/trace/trace_kprobe.c | 8 +-
kernel/trace/trace_syscalls.c | 18 +++-
11 files changed, 541 insertions(+), 82 deletions(-)
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