[GIT PULL] perf updates for v5.8

From: Ingo Molnar
Date: Mon Jun 01 2020 - 11:54:44 EST

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Linus,

Please pull the latest perf/core git tree from:

git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git perf-core-2020-06-01

# HEAD: 5cde265384cad739b162cf08afba6da8857778bd perf/x86/rapl: Add AMD Fam17h RAPL support

Kernel side changes:

- Add AMD Fam17h RAPL support
- Introduce CAP_PERFMON to kernel and user space
- Add Zhaoxin CPU support
- Misc fixes and cleanups

Tooling changes:

perf record:

- Introduce --switch-output-event to use arbitrary events to be setup
and read from a side band thread and, when they take place a signal
be sent to the main 'perf record' thread, reusing the --switch-output
code to take perf.data snapshots from the --overwrite ring buffer, e.g.:

# perf record --overwrite -e sched:* \
--switch-output-event syscalls:*connect* \
workload

will take perf.data.YYYYMMDDHHMMSS snapshots up to around the
connect syscalls.

- Add --num-synthesize-threads option to control degree of parallelism of the
synthesize_mmap() code which is scanning /proc/PID/task/PID/maps and can be
time consuming. This mimics pre-existing behaviour in 'perf top'.

perf bench:

- Add a multi-threaded synthesize benchmark.
- Add kallsyms parsing benchmark.

Intel PT support:

- Stitch LBR records from multiple samples to get deeper backtraces,
there are caveats, see the csets for details.
- Allow using Intel PT to synthesize callchains for regular events.
- Add support for synthesizing branch stacks for regular events (cycles,
instructions, etc) from Intel PT data.

Misc changes:

- Updated perf vendor events for power9 and Coresight.
- Add flamegraph.py script via 'perf flamegraph'
- Misc other changes, fixes and cleanups - see the Git log for details.

Also, since over the last couple of years perf tooling has matured and
decoupled from the kernel perf changes to a large degree, going
forward Arnaldo is going to send perf tooling changes via direct pull
requests to you.

Thanks,

Ingo

------------------>
Adrian Hunter (27):
perf script: Simplify auxiliary event printing functions
perf auxtrace: Add ->evsel_is_auxtrace() callback
perf intel-pt: Implement ->evsel_is_auxtrace() callback
perf intel-bts: Implement ->evsel_is_auxtrace() callback
perf arm-spe: Implement ->evsel_is_auxtrace() callback
perf cs-etm: Implement ->evsel_is_auxtrace() callback
perf s390-cpumsf: Implement ->evsel_is_auxtrace() callback
perf auxtrace: For reporting purposes, un-group AUX area event
perf auxtrace: Add an option to synthesize callchains for regular events
perf thread-stack: Add thread_stack__sample_late()
perf evsel: Be consistent when looking which evsel PERF_SAMPLE_ bits are set
perf evsel: Add support for synthesized sample type
perf intel-pt: Add support for synthesizing callchains for regular events
perf evsel: Move and globalize perf_evsel__find_pmu() and perf_evsel__is_aux_event()
perf evlist: Move leader-sampling configuration
perf evsel: Rearrange perf_evsel__config_leader_sampling()
perf evlist: Allow multiple read formats
perf tools: Add support for leader-sampling with AUX area events
perf thread-stack: Add branch stack support
perf intel-pt: Consolidate thread-stack use condition
perf intel-pt: Change branch stack support to use thread-stacks
perf auxtrace: Add option to synthesize branch stack for regular events
perf evsel: Add support for synthesized branch stack sample type
perf thread-stack: Add thread_stack__br_sample_late()
perf intel-pt: Add support for synthesizing branch stacks for regular events
perf intel-pt: Update documentation about itrace G and L options
perf intel-pt: Update documentation about using /proc/kcore

Alexey Budankov (12):
capabilities: Introduce CAP_PERFMON to kernel and user space
perf/core: Open access to the core for CAP_PERFMON privileged process
perf/core: open access to probes for CAP_PERFMON privileged process
perf tools: Support CAP_PERFMON capability
drm/i915/perf: Open access for CAP_PERFMON privileged process
trace/bpf_trace: Open access for CAP_PERFMON privileged process
powerpc/perf: open access for CAP_PERFMON privileged process
parisc/perf: open access for CAP_PERFMON privileged process
drivers/perf: Open access for CAP_PERFMON privileged process
drivers/oprofile: Open access for CAP_PERFMON privileged process
doc/admin-guide: Update perf-security.rst with CAP_PERFMON information
doc/admin-guide: update kernel.rst with CAP_PERFMON information

Andreas Gerstmayr (1):
perf script: Add flamegraph.py script

Arnaldo Carvalho de Melo (45):
perf stat: Honour --timeout for forked workloads
perf tools: Move routines that probe for perf API features to separate file
perf record: Move sb_evlist to 'struct record'
perf top: Move sb_evlist to 'struct perf_top'
perf bpf: Decouple creating the evlist from adding the SB event
perf parse-events: Add parse_events_option() variant that creates evlist
perf evlist: Move the sideband thread routines to separate object
perf evlist: Allow reusing the side band thread for more purposes
libsubcmd: Introduce OPT_CALLBACK_SET()
perf record: Introduce --switch-output-event
perf record: Move side band evlist setup to separate routine
perf evsel: Rename 'struct perf_evsel__sb_cb_t' to 'struct evsel__sb_cb_t'
perf evsel: Rename perf_evsel__nr_cpus() to evsel__nr_cpus()
perf evsel: Rename perf_evsel__compute_deltas() to evsel__compute_deltas()
perf evsel: Rename perf_evsel__find_pmu() to evsel__find_pmu()
perf evsel: Rename perf_evsel__is_aux_event() to evsel__is_aux_event()
perf evsel: Rename perf_evsel__exit() to evsel__exit()
perf evsel: Rename perf_evsel__config*() to evsel__config*()
perf evsel: Rename perf_evsel__calc_id_pos() to evsel__calc_id_pos()
perf evsel: Rename __perf_evsel__sample_size() to __evsel__sample_size()
perf evsel: Rename *perf_evsel__*name() to *evsel__*name()
perf evsel: Rename perf_evsel__group_desc() to evsel__group_desc()
perf evsel: Rename *perf_evsel__*set_sample_*() to *evsel__*set_sample_*()
perf evsel: Rename perf_evsel__*filter*() to evsel__*filter*()
perf evsel: Rename perf_evsel__open_per_*() to evsel__open_per_*()
perf evsel: Rename perf_evsel__{str,int}val() and other tracepoint field metehods to to evsel__*()
perf evsel: Rename perf_evsel__is_*() to evsel__is*()
perf evsel: Ditch perf_evsel__cmp(), not used for quite a while
perf evsel: Rename *perf_evsel__read*() to *evsel__read()
perf evsel: Rename perf_evsel__parse_sample*() to evsel__parse_sample*()
perf evsel: Rename perf_evsel__{prev,next}() to evsel__{prev,next}()
perf evsel: Rename perf_evsel__has*() to evsel__has*()
perf evsel: Rename perf_evsel__fallback() to evsel__fallback()
perf evsel: Rename perf_evsel__group_idx() to evsel__group_idx()
perf evsel: Rename perf_evsel__env() to evsel__env()
perf evsel: Rename perf_evsel__store_ids() to evsel__store_id()
perf stat: Rename perf_evsel__*() operating on 'struct evsel *' to evsel__*()
perf kmem: Rename perf_evsel__*() operating on 'struct evsel *' to evsel__*()
perf lock: Rename perf_evsel__*() operating on 'struct evsel *' to evsel__*()
perf sched: Rename perf_evsel__*() operating on 'struct evsel *' to evsel__*()
perf script: Rename perf_evsel__*() operating on 'struct evsel *' to evsel__*()
perf trace: Rename perf_evsel__*() operating on 'struct evsel *' to evsel__*()
perf annotate: Rename perf_evsel__*() operating on 'struct evsel *' to evsel__*()
perf inject: Rename perf_evsel__*() operating on 'struct evsel *' to evsel__*()
perf flamegraph: Use /bin/bash for report and record scripts

Barret Rhoden (1):
perf: Add cond_resched() to task_function_call()

CodyYao-oc (1):
x86/perf: Add hardware performance events support for Zhaoxin CPU.

Gustavo A. R. Silva (2):
perf/x86: Replace zero-length array with flexible-array
perf/core: Replace zero-length array with flexible-array

He Zhe (2):
tools lib traceevent: Take care of return value of asprintf
libperf: Add NULL pointer check for cpu_map iteration and NULL assignment for all_cpus.

Ian Rogers (16):
perf bench: Add event synthesis benchmark
perf synthetic-events: save 4kb from 2 stack frames
perf doc: allow ASCIIDOC_EXTRA to be an argument
perf script: Avoid NULL dereference on symbol
perf bench: Add a multi-threaded synthesize benchmark
tools api: Add a lightweight buffered reading api
perf synthetic events: Remove use of sscanf from /proc reading
perf parse-events: Fix memory leaks found on parse_events
perf parse-events: Fix memory leaks found on parse_events
perf parse-events: Fix another memory leaks found on parse_events()
libperf evlist: Fix a refcount leak
perf mem2node: Avoid double free related to realloc
perf doc: Pass ASCIIDOC_EXTRA as an argument
perf bench: Add kallsyms parsing
libsymbols kallsyms: Parse using io api
libsymbols kallsyms: Move hex2u64 out of header

Jagadeesh Pagadala (1):
perf evlist: Remove duplicate headers

Jin Yao (2):
perf stat: Zero all the 'ena' and 'run' array slot stats for interval mode
perf stat: Improve runtime stat for interval mode

Jiri Olsa (6):
perf tools: Synthesize bpf_trampoline/dispatcher ksymbol event
perf machine: Set ksymbol dso as loaded on arrival
perf annotate: Add basic support for bpf_image
perf expr: Add expr_ prefix for parse_ctx and parse_id
perf expr: Add expr_scanner_ctx object
perf parser: Add support to specify rXXX event with pmu

Kajol Jain (5):
perf metrictroup: Split the metricgroup__add_metric function
perf metricgroups: Enhance JSON/metric infrastructure to handle "?"
perf tests expr: Added test for runtime param in metric expression
perf tools: Enable Hz/hz prinitg for --metric-only option
perf vendor events power9: Add hv_24x7 socket/chip level metric events

Kan Liang (17):
perf pmu: Add support for PMU capabilities
perf header: Support CPU PMU capabilities
perf machine: Remove the indent in resolve_lbr_callchain_sample
perf machine: Refine the function for LBR call stack reconstruction
perf machine: Factor out lbr_callchain_add_kernel_ip()
perf machine: Factor out lbr_callchain_add_lbr_ip()
perf thread: Add a knob for LBR stitch approach
perf thread: Save previous sample for LBR stitching approach
perf callchain: Save previous cursor nodes for LBR stitching approach
perf callchain: Stitch LBR call stack
perf report: Add option to enable the LBR stitching approach
perf script: Add option to enable the LBR stitching approach
perf top: Add option to enable the LBR stitching approach
perf c2c: Add option to enable the LBR stitching approach
perf hist: Add fast path for duplicate entries check
perf/x86/rapl: Add Ice Lake RAPL support
perf/x86/intel: Add more available bits for OFFCORE_RESPONSE of Intel Tremont

Konstantin Khlebnikov (2):
perf tools: Fix reading new topology attribute "core_cpus"
perf tools: Simplify checking if SMT is active.

Leo Yan (1):
perf cs-etm: Move definition of 'traceid_list' global variable from header file

Mike Leach (1):
perf: cs-etm: Update to build with latest opencsd version.

Paul Gortmaker (1):
perf/x86/intel/pt: Drop pointless NULL assignment.

Shaokun Zhang (1):
perf pmu: Fix function name in comment, its get_cpuid_str(), not get_cpustr()

Stephane Eranian (11):
tools api fs: Make xxx__mountpoint() more scalable
perf stat: Force error in fallback on :k events
perf record: Add num-synthesize-threads option
perf script: Remove extraneous newline in perf_sample__fprintf_regs()
tools feature: Add support for detecting libpfm4
perf pmu: Add perf_pmu__find_by_type helper
perf/x86/rapl: Move RAPL support to common x86 code
perf/x86/rapl: Refactor to share the RAPL code between Intel and AMD CPUs
perf/x86/rapl: Flip logic on default events visibility
perf/x86/rapl: Make perf_probe_msr() more robust and flexible
perf/x86/rapl: Add AMD Fam17h RAPL support

Thomas Richter (1):
perf symbol: Fix kernel symbol address display

Tommi Rantala (3):
perf cgroup: Avoid needless closing of unopened fd
perf bench: Fix div-by-zero if runtime is zero
perf test session topology: Fix data path

Zou Wei (4):
libtraceevent: Remove unneeded semicolon
perf c2c: Remove unneeded semicolon
perf tools: Remove unneeded semicolons
perf report: Fix warning assignment of 0/1 to bool variable

Documentation/admin-guide/perf-security.rst | 86 ++-
Documentation/admin-guide/sysctl/kernel.rst | 16 +-
arch/parisc/kernel/perf.c | 2 +-
arch/powerpc/perf/imc-pmu.c | 4 +-
arch/x86/events/Kconfig | 6 +-
arch/x86/events/Makefile | 3 +
arch/x86/events/core.c | 4 +
arch/x86/events/intel/Makefile | 2 -
arch/x86/events/intel/bts.c | 2 +-
arch/x86/events/intel/core.c | 4 +-
arch/x86/events/intel/pt.c | 2 -
arch/x86/events/intel/uncore.h | 2 +-
arch/x86/events/perf_event.h | 10 +
arch/x86/events/probe.c | 13 +
arch/x86/events/{intel => }/rapl.c | 69 ++-
arch/x86/events/zhaoxin/Makefile | 2 +
arch/x86/events/zhaoxin/core.c | 613 +++++++++++++++++++++
arch/x86/include/asm/msr-index.h | 3 +
arch/x86/kernel/cpu/perfctr-watchdog.c | 8 +
drivers/gpu/drm/i915/i915_perf.c | 13 +-
drivers/oprofile/event_buffer.c | 2 +-
drivers/perf/arm_spe_pmu.c | 4 +-
include/linux/capability.h | 4 +
include/linux/perf_event.h | 10 +-
include/uapi/linux/capability.h | 8 +-
kernel/events/callchain.c | 2 +-
kernel/events/core.c | 29 +-
kernel/events/internal.h | 2 +-
kernel/trace/bpf_trace.c | 2 +-
security/selinux/include/classmap.h | 4 +-
tools/build/Makefile.feature | 3 +-
tools/build/feature/Makefile | 6 +-
tools/build/feature/test-libopencsd.c | 4 +-
tools/build/feature/test-libpfm4.c | 9 +
tools/lib/api/fs/fs.c | 17 +
tools/lib/api/fs/fs.h | 12 +
tools/lib/api/io.h | 115 ++++
tools/lib/perf/cpumap.c | 2 +-
tools/lib/perf/evlist.c | 4 +-
tools/lib/subcmd/parse-options.h | 2 +
tools/lib/symbol/kallsyms.c | 86 ++-
tools/lib/symbol/kallsyms.h | 2 -
tools/lib/traceevent/kbuffer-parse.c | 2 +-
tools/lib/traceevent/parse-filter.c | 29 +-
tools/perf/Documentation/Makefile | 4 +-
tools/perf/Documentation/itrace.txt | 6 +
tools/perf/Documentation/perf-bench.txt | 8 +
tools/perf/Documentation/perf-c2c.txt | 11 +
tools/perf/Documentation/perf-intel-pt.txt | 53 +-
tools/perf/Documentation/perf-list.txt | 8 +
tools/perf/Documentation/perf-record.txt | 17 +
tools/perf/Documentation/perf-report.txt | 11 +
tools/perf/Documentation/perf-script.txt | 11 +
tools/perf/Documentation/perf-stat.txt | 2 +
tools/perf/Documentation/perf-top.txt | 9 +
tools/perf/Documentation/perf.data-file-format.txt | 16 +
tools/perf/Makefile.perf | 6 +-
tools/perf/arch/arm/util/cs-etm.c | 7 +-
tools/perf/arch/arm64/util/arm-spe.c | 12 +-
tools/perf/arch/powerpc/util/header.c | 8 +
tools/perf/arch/powerpc/util/kvm-stat.c | 2 +-
tools/perf/arch/s390/util/kvm-stat.c | 8 +-
tools/perf/arch/x86/tests/perf-time-to-tsc.c | 6 +-
tools/perf/arch/x86/util/intel-bts.c | 2 +-
tools/perf/arch/x86/util/intel-pt.c | 21 +-
tools/perf/arch/x86/util/kvm-stat.c | 12 +-
tools/perf/bench/Build | 3 +-
tools/perf/bench/bench.h | 3 +-
tools/perf/bench/epoll-wait.c | 3 +-
tools/perf/bench/futex-hash.c | 3 +-
tools/perf/bench/futex-lock-pi.c | 3 +-
tools/perf/bench/kallsyms-parse.c | 75 +++
tools/perf/bench/synthesize.c | 262 +++++++++
tools/perf/builtin-annotate.c | 15 +-
tools/perf/builtin-bench.c | 7 +
tools/perf/builtin-c2c.c | 21 +-
tools/perf/builtin-diff.c | 8 +-
tools/perf/builtin-ftrace.c | 5 +-
tools/perf/builtin-inject.c | 19 +-
tools/perf/builtin-kmem.c | 65 +--
tools/perf/builtin-kvm.c | 23 +-
tools/perf/builtin-lock.c | 42 +-
tools/perf/builtin-mem.c | 2 +-
tools/perf/builtin-record.c | 117 +++-
tools/perf/builtin-report.c | 36 +-
tools/perf/builtin-sched.c | 78 ++-
tools/perf/builtin-script.c | 391 ++++---------
tools/perf/builtin-stat.c | 36 +-
tools/perf/builtin-timechart.c | 52 +-
tools/perf/builtin-top.c | 47 +-
tools/perf/builtin-trace.c | 115 ++--
tools/perf/design.txt | 3 +-
.../arch/powerpc/power9/nest_metrics.json | 19 +
tools/perf/pmu-events/pmu-events.h | 2 +-
tools/perf/scripts/python/bin/flamegraph-record | 2 +
tools/perf/scripts/python/bin/flamegraph-report | 3 +
tools/perf/scripts/python/flamegraph.py | 124 +++++
tools/perf/tests/Build | 1 +
tools/perf/tests/api-io.c | 304 ++++++++++
tools/perf/tests/builtin-test.c | 4 +
tools/perf/tests/event-times.c | 8 +-
tools/perf/tests/event_update.c | 2 +-
tools/perf/tests/evsel-roundtrip-name.c | 20 +-
tools/perf/tests/evsel-tp-sched.c | 2 +-
tools/perf/tests/expr.c | 20 +-
tools/perf/tests/hists_cumulate.c | 8 +-
tools/perf/tests/mmap-basic.c | 4 +-
tools/perf/tests/openat-syscall-all-cpus.c | 6 +-
tools/perf/tests/openat-syscall-tp-fields.c | 6 +-
tools/perf/tests/openat-syscall.c | 8 +-
tools/perf/tests/parse-events.c | 155 +++---
tools/perf/tests/perf-record.c | 6 +-
tools/perf/tests/sample-parsing.c | 6 +-
tools/perf/tests/switch-tracking.c | 14 +-
tools/perf/tests/tests.h | 1 +
tools/perf/tests/topology.c | 12 +-
tools/perf/ui/browsers/hists.c | 18 +-
tools/perf/ui/gtk/annotate.c | 2 +-
tools/perf/ui/gtk/hists.c | 6 +-
tools/perf/ui/hist.c | 16 +-
tools/perf/util/Build | 2 +
tools/perf/util/annotate.c | 40 +-
tools/perf/util/arm-spe.c | 9 +
tools/perf/util/auxtrace.c | 125 +++--
tools/perf/util/auxtrace.h | 16 +
tools/perf/util/bpf-event.c | 96 +++-
tools/perf/util/bpf-event.h | 7 +-
tools/perf/util/bpf-loader.c | 2 +-
tools/perf/util/branch.h | 19 +-
tools/perf/util/callchain.h | 8 +
tools/perf/util/cap.h | 4 +
tools/perf/util/cgroup.c | 3 +-
tools/perf/util/cloexec.c | 2 +-
tools/perf/util/cs-etm-decoder/cs-etm-decoder.c | 2 +
tools/perf/util/cs-etm.c | 14 +
tools/perf/util/cs-etm.h | 3 -
tools/perf/util/data-convert-bt.c | 6 +-
tools/perf/util/dso.c | 1 +
tools/perf/util/dso.h | 1 +
tools/perf/util/env.h | 3 +
tools/perf/util/event.c | 2 +-
tools/perf/util/evlist.c | 159 +-----
tools/perf/util/evlist.h | 9 +-
tools/perf/util/evsel.c | 343 ++++++------
tools/perf/util/evsel.h | 194 +++----
tools/perf/util/evsel_config.h | 2 +-
tools/perf/util/evsel_fprintf.c | 8 +-
tools/perf/util/expr.c | 25 +-
tools/perf/util/expr.h | 19 +-
tools/perf/util/expr.l | 37 +-
tools/perf/util/expr.y | 6 +-
tools/perf/util/header.c | 121 +++-
tools/perf/util/header.h | 1 +
tools/perf/util/hist.c | 31 +-
tools/perf/util/intel-bts.c | 16 +-
.../util/intel-pt-decoder/intel-pt-pkt-decoder.c | 2 +-
tools/perf/util/intel-pt.c | 306 ++++++----
tools/perf/util/machine.c | 436 ++++++++++++---
tools/perf/util/mem2node.c | 3 +-
tools/perf/util/metricgroup.c | 78 ++-
tools/perf/util/metricgroup.h | 2 +
tools/perf/util/ordered-events.c | 2 +-
tools/perf/util/parse-events.c | 39 +-
tools/perf/util/parse-events.h | 1 +
tools/perf/util/parse-events.l | 1 +
tools/perf/util/parse-events.y | 12 +-
tools/perf/util/perf_api_probe.c | 164 ++++++
tools/perf/util/perf_api_probe.h | 14 +
tools/perf/util/pmu.c | 113 ++++
tools/perf/util/pmu.h | 10 +
tools/perf/util/python.c | 4 +-
tools/perf/util/record.c | 185 ++-----
tools/perf/util/record.h | 1 +
tools/perf/util/s390-cpumcf-kernel.h | 1 +
tools/perf/util/s390-cpumsf.c | 12 +-
.../util/scripting-engines/trace-event-python.c | 6 +-
tools/perf/util/session.c | 9 +-
tools/perf/util/sideband_evlist.c | 148 +++++
tools/perf/util/smt.c | 10 +-
tools/perf/util/sort.c | 12 +-
tools/perf/util/sort.h | 2 +
tools/perf/util/stat-display.c | 23 +-
tools/perf/util/stat-shadow.c | 55 +-
tools/perf/util/stat.c | 24 +-
tools/perf/util/symbol.c | 15 +
tools/perf/util/synthetic-events.c | 179 +++---
tools/perf/util/thread-stack.c | 274 ++++++++-
tools/perf/util/thread-stack.h | 11 +-
tools/perf/util/thread.c | 24 +
tools/perf/util/thread.h | 15 +
tools/perf/util/top.c | 2 +-
tools/perf/util/top.h | 3 +-
tools/perf/util/trace-event-read.c | 2 +-
tools/perf/util/util.c | 1 +
194 files changed, 5221 insertions(+), 1993 deletions(-)
rename arch/x86/events/{intel => }/rapl.c (91%)
create mode 100644 arch/x86/events/zhaoxin/Makefile
create mode 100644 arch/x86/events/zhaoxin/core.c
create mode 100644 tools/build/feature/test-libpfm4.c
create mode 100644 tools/lib/api/io.h
create mode 100644 tools/perf/bench/kallsyms-parse.c
create mode 100644 tools/perf/bench/synthesize.c
create mode 100644 tools/perf/pmu-events/arch/powerpc/power9/nest_metrics.json
create mode 100755 tools/perf/scripts/python/bin/flamegraph-record
create mode 100755 tools/perf/scripts/python/bin/flamegraph-report
create mode 100755 tools/perf/scripts/python/flamegraph.py
create mode 100644 tools/perf/tests/api-io.c
create mode 100644 tools/perf/util/perf_api_probe.c
create mode 100644 tools/perf/util/perf_api_probe.h
create mode 100644 tools/perf/util/sideband_evlist.c

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