[PATCH v2 0/7] perf tools: improve BPF related error delivering and testing

[Wang Nan <wangnan0@huawei.com>]

This patchset is based on Arnaldo's perf/core.

Previous version can be found from [1].

Patch 1/7 - 4/7 are error message related patches.

Patch 5/7 - 7/7 are testing related patches.

v1 -> v2:

 - Use enum for error code.

 - Eliminate for-loop, directly get error message from array using
   array index.

 - Classify error reason of program loading failure.

 - Improve message when version mismatching.

[1] http://lkml.kernel.org/r/1446697622-4072-1-git-send-email-wangnan0@huawei.com

Wang Nan (7):
  bpf tools: Improve libbpf error reporting
  bpf tools: Add new API bpf_object__get_kversion()
  perf tools: Make fetch_kernel_version() public available
  perf tools: Improve BPF related error messages output
  perf test: Enforce LLVM test: update basic BPF test program
  perf test: Enforce LLVM test: add kbuild test
  perf test: Add 'perf test BPF'

 tools/lib/bpf/libbpf.c                    | 167 +++++++++++++++++-------
 tools/lib/bpf/libbpf.h                    |  21 +++
 tools/perf/tests/Build                    |  17 ++-
 tools/perf/tests/bpf-script-example.c     |   4 +
 tools/perf/tests/bpf-script-test-kbuild.c |  21 +++
 tools/perf/tests/bpf.c                    | 209 ++++++++++++++++++++++++++++++
 tools/perf/tests/builtin-test.c           |   4 +
 tools/perf/tests/llvm.c                   | 137 +++++++++++++++-----
 tools/perf/tests/llvm.h                   |  18 +++
 tools/perf/tests/tests.h                  |   1 +
 tools/perf/util/bpf-loader.c              | 143 +++++++++++++++++---
 tools/perf/util/bpf-loader.h              |  32 +++++
 tools/perf/util/llvm-utils.c              |  49 +++----
 tools/perf/util/parse-events.c            |  11 +-
 tools/perf/util/util.c                    |  31 +++++
 tools/perf/util/util.h                    |   8 ++
 16 files changed, 735 insertions(+), 138 deletions(-)
 create mode 100644 tools/perf/tests/bpf-script-test-kbuild.c
 create mode 100644 tools/perf/tests/bpf.c
 create mode 100644 tools/perf/tests/llvm.h

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1.8.3.4