[PATCH 0/5] perf tools: improve BPF related error delivering and testing

[Wang Nan]

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

Patch 1/5 - 2/5 improve BPF related error delivering and reporting.
Libbpf and bpf-loader define their own error code sets so can
deliever precise reason of failure. Corresponding strerror functions
are improved accordingly.

Patch 3/5 - 5/5 improve 'perf test LLVM' and 'perf test BPF'. Code
structure improved so new test case can be introduced easier.

Wang Nan (5):
  bpf tools: Improve libbpf error reporting
  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                    | 149 ++++++++++++++-------
 tools/lib/bpf/libbpf.h                    |  12 ++
 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              | 130 ++++++++++++++++---
 tools/perf/util/bpf-loader.h              |  28 ++++
 tools/perf/util/parse-events.c            |  11 +-
 13 files changed, 640 insertions(+), 101 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

-- 
1.8.3.4

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