On 13 July 2016 at 05:40, Adrian Hunter <[email protected]> wrote: > On 17/06/16 20:02, Mathieu Poirier wrote: >> Coresight ETMs are IP blocks used to perform HW assisted tracing >> on a CPU core. This patch introduce the required auxiliary API >> functions allowing the perf core to interact with a tracer. >> >> Signed-off-by: Mathieu Poirier <[email protected]> >> --- >> MAINTAINERS | 3 + >> tools/perf/arch/arm/util/Build | 2 +- >> tools/perf/arch/arm/util/auxtrace.c | 54 ++++ >> tools/perf/arch/arm/util/cs-etm.c | 559 >> ++++++++++++++++++++++++++++++++++++ >> tools/perf/arch/arm/util/cs-etm.h | 23 ++ >> tools/perf/arch/arm64/util/Build | 4 + >> tools/perf/util/auxtrace.c | 1 + >> tools/perf/util/auxtrace.h | 1 + >> tools/perf/util/cs-etm.h | 74 +++++ >> 9 files changed, 720 insertions(+), 1 deletion(-) >> create mode 100644 tools/perf/arch/arm/util/auxtrace.c >> create mode 100644 tools/perf/arch/arm/util/cs-etm.c >> create mode 100644 tools/perf/arch/arm/util/cs-etm.h >> create mode 100644 tools/perf/util/cs-etm.h >> >> diff --git a/MAINTAINERS b/MAINTAINERS >> index d3451007718b..4fa03b03bfc5 100644 >> --- a/MAINTAINERS >> +++ b/MAINTAINERS >> @@ -1086,6 +1086,9 @@ F: Documentation/trace/coresight.txt >> F: Documentation/devicetree/bindings/arm/coresight.txt >> F: Documentation/ABI/testing/sysfs-bus-coresight-devices-* >> F: tools/perf/arch/arm/util/pmu.c >> +F: tools/perf/arch/arm/util/auxtrace.c >> +F: tools/perf/arch/arm/util/cs_etm.c >> +F: tools/perf/arch/arm/util/cs_etm.h > > File names have changed from having '_' to '-'
Yes, I will change that. > Also FWIW there is now tools/perf/util/cs-etm.h Ok > > As last time, there is no decoder, which still begs the question: is there > anything you can actually do with the perf.data file? We are proceeding incrementally - this is only the first set in a suite of upcoming submission. The whole solution can be found here [1] and the decoding library, called OpenCSD, here [2]. File "HOWTO.md" in the latter details how to compile the components in order to build a working environment. > > Otherwise: > > Acked-by: Adrian Hunter <[email protected]> > Thanks for your time, Mathieu [1]. https://github.com/Linaro/OpenCSD/commits/perf-opencsd-4.7-rc4 [2]. https://github.com/Linaro/OpenCSD/tree/opencsd-0v003
