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Subject[PATCH 00/44] perf tools: Introduce an abstraction for AUX Area and Instruction Tracing
Date
Hi

Here are patches for the introduction of an abstraction for
using the AUX area and Instruction tracing. This patch
set now include support for Intel PT / Intel BTS.

The first 25 patches have been sent before and some have
Jiri's acks. One patch that Jiri acked "perf evlist: Add
support for mmapping an AUX area buffer" has been since
modified slightly so I dropped the ack.

Intel BTS can be used on most recent Intel CPUs. Intel PT
is available on Broadwell.

Examples:

Trace 'ls' with Intel BTS userspace only

perf record --per-thread -e intel_bts//u ls
perf report
perf script

Trace 'ls' with Intel BTS kernel and userspace

~/libexec/perf-core/perf-with-kcore record bts-ls --per-thread -e intel_bts// -- ls
~/libexec/perf-core/perf-with-kcore report bts-ls
~/libexec/perf-core/perf-with-kcore script bts-ls

Trace 'ls' with Intel PT userspace only

perf record -e intel_pt//u ls
perf report
perf script

Trace 'ls' with Intel PT kernel and userspace

~/libexec/perf-core/perf-with-kcore record pt-ls -e intel_pt// -- ls
~/libexec/perf-core/perf-with-kcore report pt-ls
~/libexec/perf-core/perf-with-kcore script pt-ls


The abstraction has two separate aspects:
1. recording AUX area data
2. processing AUX area data

Recording consists of mmapping a separate buffer and copying
the data into the perf.data file. The buffer is an AUX area
buffer. The data is written preceded by a new user event
PERF_RECORD_AUXTRACE. The data is too big to fit in the event
but follows immediately afterward. Session processing has to
skip to get to the next event header in a similar fashion to
the existing PERF_RECORD_HEADER_TRACING_DATA
event. The main recording patches are:

perf evlist: Add support for mmapping an AUX area buffer
perf tools: Add user events for AUX area tracing
perf tools: Add support for AUX area recording
perf record: Add basic AUX area tracing support

Processing consists of providing hooks in session processing
to enable a decoder to see all the events and deliver synthesized
events transparently into the event stream. The main processing
patch is:

perf session: Add hooks to allow transparent decoding of AUX area tracing data


Adrian Hunter (44):
perf header: Add AUX area tracing feature
perf evlist: Add support for mmapping an AUX area buffer
perf tools: Add user events for AUX area tracing
perf tools: Add support for AUX area recording
perf record: Add basic AUX area tracing support
perf record: Extend -m option for AUX area tracing mmap pages
perf tools: Add a user event for AUX area tracing errors
perf session: Add hooks to allow transparent decoding of AUX area tracing data
perf session: Add instruction tracing options
perf auxtrace: Add helpers for AUX area tracing errors
perf auxtrace: Add helpers for queuing AUX area tracing data
perf auxtrace: Add a heap for sorting AUX area tracing queues
perf auxtrace: Add processing for AUX area tracing events
perf auxtrace: Add a hashtable for caching
perf tools: Add member to struct dso for an instruction cache
perf script: Add Instruction Tracing support
perf script: Always allow fields 'addr' and 'cpu' for auxtrace
perf report: Add Instruction Tracing support
perf inject: Re-pipe AUX area tracing events
perf inject: Add Instruction Tracing support
perf tools: Add AUX area tracing index
perf tools: Hit all build ids when AUX area tracing
perf tools: Add build option NO_AUXTRACE to exclude AUX area tracing
perf auxtrace: Add option to synthesize events for transactions
perf script: Add field option 'flags' to print sample flags
perf tools: Add aux_watermark member of struct perf_event_attr
perf tools: Add support for PERF_RECORD_AUX
perf tools: Add support for PERF_RECORD_ITRACE_START
perf tools: Add AUX area tracing Snapshot Mode
perf record: Add AUX area tracing Snapshot Mode support
perf auxtrace: Add Intel PT as an AUX area tracing type
perf tools: Add Intel PT packet decoder
perf tools: Add Intel PT instruction decoder
perf tools: Add Intel PT log
perf tools: Add Intel PT decoder
perf tools: Add Intel PT support
perf tools: Take Intel PT into use
perf tools: Allow auxtrace data alignment
perf tools: Add Intel BTS support
perf tools: Output sample flags and insn_len from intel_pt
perf tools: Output sample flags and insn_len from intel_bts
perf tools: Intel PT to always update thread stack trace number
perf tools: Intel BTS to always update thread stack trace number
perf tools: Add example call-graph script

tools/build/Makefile.build | 2 +
tools/perf/.gitignore | 2 +
tools/perf/Documentation/intel-bts.txt | 67 +
tools/perf/Documentation/intel-pt.txt | 537 ++++
tools/perf/Documentation/perf-inject.txt | 27 +
tools/perf/Documentation/perf-record.txt | 9 +
tools/perf/Documentation/perf-report.txt | 29 +
tools/perf/Documentation/perf-script.txt | 38 +-
tools/perf/Makefile.perf | 8 +-
tools/perf/arch/x86/util/Build | 3 +
tools/perf/arch/x86/util/auxtrace.c | 82 +
tools/perf/arch/x86/util/pmu.c | 15 +
tools/perf/builtin-buildid-list.c | 9 +
tools/perf/builtin-inject.c | 174 +-
tools/perf/builtin-record.c | 270 +-
tools/perf/builtin-report.c | 11 +
tools/perf/builtin-script.c | 74 +-
tools/perf/config/Makefile | 5 +
tools/perf/perf.h | 5 +
.../scripts/python/call-graph-from-postgresql.py | 285 +++
tools/perf/tests/make | 2 +
tools/perf/util/Build | 4 +
tools/perf/util/auxtrace.c | 1362 ++++++++++
tools/perf/util/auxtrace.h | 646 +++++
tools/perf/util/dso.c | 2 +
tools/perf/util/dso.h | 3 +
tools/perf/util/event.c | 42 +
tools/perf/util/event.h | 70 +
tools/perf/util/evlist.c | 71 +-
tools/perf/util/evlist.h | 6 +
tools/perf/util/evsel.c | 1 +
tools/perf/util/header.c | 37 +
tools/perf/util/header.h | 1 +
tools/perf/util/intel-bts.c | 1353 ++++++++++
tools/perf/util/intel-bts.h | 31 +
tools/perf/util/intel-pt-decoder/Build | 14 +
.../perf/util/intel-pt-decoder/intel-pt-decoder.c | 1738 +++++++++++++
.../perf/util/intel-pt-decoder/intel-pt-decoder.h | 89 +
.../util/intel-pt-decoder/intel-pt-insn-decoder.c | 246 ++
.../util/intel-pt-decoder/intel-pt-insn-decoder.h | 65 +
tools/perf/util/intel-pt-decoder/intel-pt-log.c | 155 ++
tools/perf/util/intel-pt-decoder/intel-pt-log.h | 52 +
.../util/intel-pt-decoder/intel-pt-pkt-decoder.c | 400 +++
.../util/intel-pt-decoder/intel-pt-pkt-decoder.h | 64 +
tools/perf/util/intel-pt.c | 2637 ++++++++++++++++++++
tools/perf/util/intel-pt.h | 35 +
tools/perf/util/machine.c | 21 +
tools/perf/util/machine.h | 4 +
tools/perf/util/parse-options.h | 4 +
tools/perf/util/record.c | 11 +-
tools/perf/util/session.c | 184 +-
tools/perf/util/session.h | 6 +
tools/perf/util/tool.h | 12 +-
53 files changed, 10971 insertions(+), 49 deletions(-)
create mode 100644 tools/perf/Documentation/intel-bts.txt
create mode 100644 tools/perf/Documentation/intel-pt.txt
create mode 100644 tools/perf/arch/x86/util/auxtrace.c
create mode 100644 tools/perf/arch/x86/util/pmu.c
create mode 100644 tools/perf/scripts/python/call-graph-from-postgresql.py
create mode 100644 tools/perf/util/auxtrace.c
create mode 100644 tools/perf/util/auxtrace.h
create mode 100644 tools/perf/util/intel-bts.c
create mode 100644 tools/perf/util/intel-bts.h
create mode 100644 tools/perf/util/intel-pt-decoder/Build
create mode 100644 tools/perf/util/intel-pt-decoder/intel-pt-decoder.c
create mode 100644 tools/perf/util/intel-pt-decoder/intel-pt-decoder.h
create mode 100644 tools/perf/util/intel-pt-decoder/intel-pt-insn-decoder.c
create mode 100644 tools/perf/util/intel-pt-decoder/intel-pt-insn-decoder.h
create mode 100644 tools/perf/util/intel-pt-decoder/intel-pt-log.c
create mode 100644 tools/perf/util/intel-pt-decoder/intel-pt-log.h
create mode 100644 tools/perf/util/intel-pt-decoder/intel-pt-pkt-decoder.c
create mode 100644 tools/perf/util/intel-pt-decoder/intel-pt-pkt-decoder.h
create mode 100644 tools/perf/util/intel-pt.c
create mode 100644 tools/perf/util/intel-pt.h


Regards
Adrian



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