[PATCH 0/3] ARM: perf: allow tracing with kernel tracepoints events
jean.pihet at linaro.org
Mon Jul 7 06:45:07 PDT 2014
- Robustify the user backtrace code, as done on other architectures.
- Provide the symbols resolution when triggering from tracepoints.
Big thanks to Steve Capper for the help in debugging and rephrasing the
Stress 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
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(-)
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