On Mon, Mar 11, 2019 at 10:30:36PM -0700, Song Liu wrote: > Changes v8 to v9: > 1. Rebase on top of torvalds/master: > commit ea295481b6e313b4ea3ca2720ffcafd6005b5643 ; > 2. Change perf-record option --bpf-event to --no-bpf-event. Reviewed-by: Jiri Olsa <jolsa@xxxxxxxxxx> thanks for bearing with me ;-) jirka > > Changes v7 to v8: > 1. Address issues suggested by Jiri and Stanislav. > > Changes v6 to v7: > 1. Fix minor issues suggested by Jiri. > > Changes v5 to v6: > 1. Improve side band evlist interface; > 2. Minor style fixes. > > Changes v4 to v5: > 1. Rebase to latest bpf-next; > 2. Add dependency of 94816add0005 from Arnaldo's tree; > 3. More details in change logs; > 4. Add perf_env__init() to init bpf related lock and rbtrees; > 5. Small clean ups. > > Changes v3 to v4: > 1. Incorporate feedbacks from Jiri and Namhyung; > 2. Fixed compilation error with different feature-disassembler-four-args; > 3. Split some patches to smaller patches; > 4. Improved error handleing in symbol__disassemble_bpf(); > 5. Made side band thread more generic; > 6. Added comments as suggested. > > Changes v2 to v3: > 1. Remove unnecessary include in header files; > 2. Improved error handling; > 3. Better naming of functions, variables, etc.; > 4. Enable bpf events by default for perf-top. > > Changes v1 to v2: > 1. Fix compilation error with different feature-disassembler-four-args; > 2. Fix a segfault in perf-record; > 3. Split patches 5/9 and 6/9 so that perf_env changes and perf.data changes > are in separate patches. > > This series enables annotation of BPF programs in perf. > > perf tool gathers information via sys_bpf and (optionally) stores them in > perf.data as headers. > > Patch 1/15 changes --bpf-event option to --no-bpf-event; > Patch 2/15 to 4/15 introduce new helper functions and use them in perf and > bpftool; > Patch 5/15 to 9/15 saves information of bpf program in perf_env; > Patch 10/15 adds --bpf-event options to perf-top; > Patch 11/15 to 13/15 enables annotation of bpf progs based on information > gathered in 5/15 to 9/15; > Patch 14/15 introduces side band polling thread that gathers information > for special kernel events during perf-record or perf-top. > Patch 15/15 handles information of short living BPF program using the new > side band polling thread. > > Commands tested during developments are perf-top, perf-record, perf-report, > and perf-annotate. > > This set is also available at: > > https://github.com/liu-song-6/linux/tree/bpf-annotation-v9 > > Thanks!! > > Song Liu (15): > perf-record: replace option --bpf-event with --no-bpf-event > bpf: libbpf: introduce bpf_program__get_prog_info_linear() > bpf: bpftool: use bpf_program__get_prog_info_linear() in > prog.c:do_dump() > perf, bpf: synthesize bpf events with > bpf_program__get_prog_info_linear() > perf: change prototype of perf_event__synthesize_bpf_events() > perf, bpf: save bpf_prog_info in a rbtree in perf_env > perf, bpf: save bpf_prog_info information as headers to perf.data > perf, bpf: save btf in a rbtree in perf_env > perf, bpf: save btf information as headers to perf.data > perf-top: add option --no-bpf-event > perf: add -lopcodes to feature-libbfd > perf, bpf: enable annotation of bpf program > perf, bpf: process PERF_BPF_EVENT_PROG_LOAD for annotation > perf: introduce side band thread > perf, bpf: save bpf_prog_info and btf of short living bpf programs > > tools/bpf/bpftool/prog.c | 266 +++++++--------------------- > tools/build/Makefile.feature | 6 +- > tools/lib/bpf/libbpf.c | 251 ++++++++++++++++++++++++++ > tools/lib/bpf/libbpf.h | 63 +++++++ > tools/lib/bpf/libbpf.map | 3 + > tools/perf/Makefile.config | 10 +- > tools/perf/builtin-record.c | 11 +- > tools/perf/builtin-top.c | 10 +- > tools/perf/perf.c | 1 + > tools/perf/perf.h | 2 +- > tools/perf/util/annotate.c | 150 +++++++++++++++- > tools/perf/util/bpf-event.c | 330 ++++++++++++++++++++++++++--------- > tools/perf/util/bpf-event.h | 33 +++- > tools/perf/util/dso.c | 1 + > tools/perf/util/dso.h | 32 ++-- > tools/perf/util/env.c | 151 ++++++++++++++++ > tools/perf/util/env.h | 24 +++ > tools/perf/util/evlist.c | 119 +++++++++++++ > tools/perf/util/evlist.h | 12 ++ > tools/perf/util/evsel.c | 2 +- > tools/perf/util/evsel.h | 6 + > tools/perf/util/header.c | 238 ++++++++++++++++++++++++- > tools/perf/util/header.h | 2 + > tools/perf/util/session.c | 1 + > tools/perf/util/symbol.c | 1 + > 25 files changed, 1409 insertions(+), 316 deletions(-) > > -- > 2.17.1
