[PATCH 0/3] ARM: perf: allow tracing with kernel tracepoints events

Jean Pihet jean.pihet at linaro.org
Fri Jun 27 07:57:44 PDT 2014


- Robustify the user backtrace code, as done on other architectures.
- Provide the symbols resolution when triggering from tracepoints.

Tested with perf record and tracepoints triggering (-e <tracepoint>), with
unwinding using fp (--call-graph fp) and dwarf info (--call-graph dwarf).


Jean Pihet (3):
  ARM: perf: Check that current->mm is alive before getting user
    callchain
  ARM: perf: disable the pagefault handler when reading from user space
  ARM: perf: allow tracing with kernel tracepoints events

 arch/arm/include/asm/perf_event.h | 19 +++++++++++++++++++
 arch/arm/kernel/perf_event.c      | 13 +++++++++++--
 2 files changed, 30 insertions(+), 2 deletions(-)

-- 
1.8.1.2




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