Messages in this thread | | | From | Wang Nan <> | Subject | [GIT PULL 00/27] perf tools: filtering events using eBPF programs | Date | Sun, 6 Sep 2015 07:13:16 +0000 |
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(I forget to CC mailing list when sending previous pull req. Sorry for the noisy.)
Hi Arnaldo,
I rebased my code on your perf/core and send a new pull request. You can find main changes in the tag message. The most biggest changes are the resesigning of dummy placeholder and the new testcase for BPF prologue. They are patch 10, patch 11, patch 26 and patch 27. Please have a look at them.
The following changes since commit 0959e527b1593e662cb99639a587eac39ea1232d:
perf stat: Move sw clock metrics printout to stat-shadow (2015-09-04 20:30:01 -0300)
are available in the git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/pi3orama/linux tags/perf-ebpf-for-acme
for you to fetch changes up to 3af1c7f44478d1545f202bd0054e767d3f0f8130:
perf test: Test BPF prologue (2015-09-06 06:10:12 +0000)
---------------------------------------------------------------- BPF related bugfix and improve
1. Enforce the assumption that event parser never return empty list.
2. Reuse code and API from kernel's regs_query_register_offset().
3. Totally redesign dummy placeholder. Reuse existing dummy event instead of creating a new one.
4. Introduce new testcases, test LLVM kbuild searching and BPF prologue.
5. Adding a missing '!' in add_perf_probe_events.
6. Use new API ({convert,apply,cleanup}_perf_probe_events) to probe events. (while fix a bug that non-root user can't trace non-BPF events, like cycles)
Signed-off-by: Wang Nan <wangnan0@huawei.com>
----------------------------------------------------------------
He Kuang (2): perf tools: Add prologue for BPF programs for fetching arguments perf record: Support custom vmlinux path
Wang Nan (25): perf tools: Don't write to evsel if parser doesn't collect evsel perf tools: Make perf depend on libbpf perf ebpf: Add the libbpf glue perf tools: Enable passing bpf object file to --event perf record, bpf: Parse and create probe points for BPF programs perf bpf: Collect 'struct perf_probe_event' for bpf_program perf record: Load all eBPF object into kernel perf tools: Add bpf_fd field to evsel and config it perf tools: Attach eBPF program to perf event perf tools: Allow BPF placeholder dummy events to collect --filter options perf tools: Sync setting of real bpf events with placeholder perf record: Add clang options for compiling BPF scripts perf tools: Compile scriptlets to BPF objects when passing '.c' to --event perf test: Enforce LLVM test for BPF test perf test: Add 'perf test BPF' bpf tools: Load a program with different instances using preprocessor perf probe: Reset args and nargs for probe_trace_event when failure perf tools: Add BPF_PROLOGUE config options for further patches perf tools: Introduce regs_query_register_offset() for x86 perf tools: Generate prologue for BPF programs perf tools: Use same BPF program if arguments are identical perf probe: Init symbol as kprobe perf tools: Allow BPF program attach to uprobe events perf test: Enforce LLVM test, add kbuild test perf test: Test BPF prologue
tools/build/Makefile.feature | 6 +- tools/lib/bpf/libbpf.c | 143 +++++- tools/lib/bpf/libbpf.h | 22 + tools/perf/MANIFEST | 3 + tools/perf/Makefile.perf | 19 +- tools/perf/arch/x86/Makefile | 1 + tools/perf/arch/x86/util/Build | 1 + tools/perf/arch/x86/util/dwarf-regs.c | 122 +++-- tools/perf/builtin-record.c | 58 ++- tools/perf/builtin-stat.c | 8 +- tools/perf/builtin-top.c | 10 +- tools/perf/builtin-trace.c | 6 +- tools/perf/config/Makefile | 36 +- tools/perf/tests/Build | 24 +- tools/perf/tests/bpf-script-example.c | 48 ++ tools/perf/tests/bpf-script-test-kbuild.c | 21 + tools/perf/tests/bpf-script-test-prologue.c | 35 ++ tools/perf/tests/bpf.c | 229 +++++++++ tools/perf/tests/builtin-test.c | 12 + tools/perf/tests/llvm.c | 210 +++++++- tools/perf/tests/llvm.h | 29 ++ tools/perf/tests/make | 4 +- tools/perf/tests/tests.h | 3 + tools/perf/util/Build | 2 + tools/perf/util/bpf-loader.c | 756 ++++++++++++++++++++++++++++ tools/perf/util/bpf-loader.h | 94 ++++ tools/perf/util/bpf-prologue.c | 443 ++++++++++++++++ tools/perf/util/bpf-prologue.h | 34 ++ tools/perf/util/evlist.c | 115 +++++ tools/perf/util/evlist.h | 1 + tools/perf/util/evsel.c | 49 ++ tools/perf/util/evsel.h | 24 + tools/perf/util/include/dwarf-regs.h | 8 + tools/perf/util/parse-events.c | 82 ++- tools/perf/util/parse-events.h | 4 + tools/perf/util/parse-events.l | 6 + tools/perf/util/parse-events.y | 29 +- tools/perf/util/probe-event.c | 2 +- tools/perf/util/probe-finder.c | 4 + 39 files changed, 2618 insertions(+), 85 deletions(-) create mode 100644 tools/perf/tests/bpf-script-example.c create mode 100644 tools/perf/tests/bpf-script-test-kbuild.c create mode 100644 tools/perf/tests/bpf-script-test-prologue.c create mode 100644 tools/perf/tests/bpf.c create mode 100644 tools/perf/tests/llvm.h create mode 100644 tools/perf/util/bpf-loader.c create mode 100644 tools/perf/util/bpf-loader.h create mode 100644 tools/perf/util/bpf-prologue.c create mode 100644 tools/perf/util/bpf-prologue.h
-- 2.1.0
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