[PATCH v1 0/4] Support register names from all architectures

From: German Gomez <german.gomez@arm.com>
To: linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org,
	acme@kernel.org
Cc: German Gomez <german.gomez@arm.com>,
	John Garry <john.garry@huawei.com>, Will Deacon <will@kernel.org>,
	Mathieu Poirier <mathieu.poirier@linaro.org>,
	Leo Yan <leo.yan@linaro.org>, Mark Rutland <mark.rutland@arm.com>,
	Alexander Shishkin <alexander.shishkin@linux.intel.com>,
	Jiri Olsa <jolsa@redhat.com>, Namhyung Kim <namhyung@kernel.org>,
	linux-arm-kernel@lists.infradead.org, linux-csky@vger.kernel.org,
	linux-riscv@lists.infradead.org
Subject: [PATCH v1 0/4] Support register names from all architectures
Date: Wed,  1 Dec 2021 12:33:28 +0000	[thread overview]
Message-ID: <20211201123334.679131-1-german.gomez@arm.com> (raw)

The following changeset applies some corrections to the way system
registers are processed and presented when reading perf.data files using
the various perf tools.

The commit message from [4/4] shows how register names aren't correctly
presented when performing x-arch analysis of perf.data files (i.e.
recording in one arch, then reading the file from a different arch).

Please let me know if there are any concerns with this approach, or if
any improvements can be made for subsequent re-rolls of the changeset.

  - [PATCH 1/4] Fixes a potential out-of-bounds access when reading the
    values of the registers in the perf.data file.
  - [PATCH 2/4] Modifies one of the callbacks in "struct scripting_ops"
    so that the python version can obtain the correct register names.
  - [PATCH 3/4] Adds header files with the register indices and names
    from all architectures, which are used by the next patch.
  - [PATCH 4/4] Refactors the function "perf_reg_name" so that it can
    support registers from all architectures, not just the local one.

Thanks,
German

German Gomez (4):
  perf tools: Prevent out-of-bounds access to registers
  perf script: Add "struct machine" parameter to process_event callback
  perf tools: Crete header files with register names
  perf tools: Support register names from all architectures

 tools/perf/arch/arm/include/perf_regs.h       |  42 --------
 tools/perf/arch/arm64/include/perf_regs.h     |  76 -------------
 tools/perf/arch/csky/include/perf_regs.h      |  82 --------------
 tools/perf/arch/mips/include/perf_regs.h      |  69 ------------
 tools/perf/arch/powerpc/include/perf_regs.h   |  66 ------------
 tools/perf/arch/riscv/include/perf_regs.h     |  74 -------------
 tools/perf/arch/s390/include/perf_regs.h      |  78 --------------
 tools/perf/arch/x86/include/perf_regs.h       |  82 --------------
 tools/perf/builtin-script.c                   |  26 ++---
 tools/perf/util/event.h                       |   5 +-
 tools/perf/util/perf_regs.c                   |   3 +
 tools/perf/util/perf_regs.h                   |  33 +++++-
 tools/perf/util/perf_regs_arm.h               |  57 ++++++++++
 tools/perf/util/perf_regs_arm64.h             |  83 ++++++++++++++
 tools/perf/util/perf_regs_csky.h              | 101 ++++++++++++++++++
 tools/perf/util/perf_regs_mips.h              |  76 +++++++++++++
 tools/perf/util/perf_regs_powerpc.h           |  74 +++++++++++++
 tools/perf/util/perf_regs_riscv.h             |  81 ++++++++++++++
 tools/perf/util/perf_regs_s390.h              |  85 +++++++++++++++
 tools/perf/util/perf_regs_x86.h               |  87 +++++++++++++++
 .../util/scripting-engines/trace-event-perl.c |   3 +-
 .../scripting-engines/trace-event-python.c    |  33 +++---
 tools/perf/util/session.c                     |  25 ++---
 tools/perf/util/trace-event-scripting.c       |   3 +-
 tools/perf/util/trace-event.h                 |   3 +-
 25 files changed, 733 insertions(+), 614 deletions(-)
 create mode 100644 tools/perf/util/perf_regs_arm.h
 create mode 100644 tools/perf/util/perf_regs_arm64.h
 create mode 100644 tools/perf/util/perf_regs_csky.h
 create mode 100644 tools/perf/util/perf_regs_mips.h
 create mode 100644 tools/perf/util/perf_regs_powerpc.h
 create mode 100644 tools/perf/util/perf_regs_riscv.h
 create mode 100644 tools/perf/util/perf_regs_s390.h
 create mode 100644 tools/perf/util/perf_regs_x86.h

-- 
2.25.1

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