Messages in this thread | | | From | Adrian Hunter <> | Subject | [PATCH RFC 00/11] perf script: Add API for filtering via dynamically loaded shared object | Date | Mon, 21 Jun 2021 18:05:03 +0300 |
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Hi
In some cases, users want to filter very large amounts of data (e.g. from AUX area tracing like Intel PT) looking for something specific. While scripting such as Python can be used, Python is 10 to 20 times slower than C. So define a C API so that custom filters can be written and loaded.
There are 3 preparation patches. The main patch is patch 4.
The other patches add more functionality, except for patch 6 which installs the C API header file.
Adrian Hunter (11): perf script: Move filter_cpu() earlier perf script: Move filtering before scripting perf script: Share addr_al between functions perf script: Add API for filtering via dynamically loaded shared object perf script: Add dlfilter__filter_event_early() perf build: Install perf_dlfilter.h perf dlfilter: Add resolve_address() to perf_dlfilter_fns perf dlfilter: Add insn() to perf_dlfilter_fns perf dlfilter: Add srcline() to perf_dlfilter_fns perf dlfilter: Add attr() to perf_dlfilter_fns perf dlfilter: Add object_code() to perf_dlfilter_fns
tools/perf/Documentation/perf-dlfilter.txt | 235 +++++++++++++++ tools/perf/Documentation/perf-script.txt | 7 +- tools/perf/Makefile.config | 3 + tools/perf/Makefile.perf | 4 +- tools/perf/builtin-script.c | 93 ++++-- tools/perf/util/Build | 1 + tools/perf/util/dlfilter.c | 469 +++++++++++++++++++++++++++++ tools/perf/util/dlfilter.h | 91 ++++++ tools/perf/util/perf_dlfilter.h | 139 +++++++++ 9 files changed, 1015 insertions(+), 27 deletions(-) create mode 100644 tools/perf/Documentation/perf-dlfilter.txt create mode 100644 tools/perf/util/dlfilter.c create mode 100644 tools/perf/util/dlfilter.h create mode 100644 tools/perf/util/perf_dlfilter.h
Regards Adrian
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