linux-kernel - [PATCH v2 00/14] Fix perf tools/lib includes

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Date:   Wed,  9 Nov 2022 10:49:00 -0800
From:   Ian Rogers <irogers@...gle.com>
To:     Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...hat.com>,
        Arnaldo Carvalho de Melo <acme@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Jiri Olsa <jolsa@...nel.org>,
        Namhyung Kim <namhyung@...nel.org>,
        Masahiro Yamada <masahiroy@...nel.org>,
        Nicolas Schier <nicolas@...sle.eu>,
        linux-kernel@...r.kernel.org, linux-perf-users@...r.kernel.org,
        bpf@...r.kernel.org, Nick Desaulniers <ndesaulniers@...gle.com>,
        Andrii Nakryiko <andrii.nakryiko@...il.com>
Cc:     Stephane Eranian <eranian@...gle.com>,
        Ian Rogers <irogers@...gle.com>
Subject: [PATCH v2 00/14] Fix perf tools/lib includes

The previous build would add -Itools/lib and get dependencies for
libtraceevent, libsubcmd, libsymbol, libapi and libbpf meaning that
overriding these libraries would change the link time dependency but
the headers would erroneously come from tools/lib. Fix the build to
install headers and then depend on these. To reduce exposing internal
headers/APIs some clean up is performed. tools/lib/symbol has a
Makefile added, while tools/lib/api and tools/lib/subcmd have install
targets added. The pattern used for the dependencies in Makefile.perf
is modelled on libbpf.

The problem and solution were motivated by this issue and discussion:
https://lore.kernel.org/lkml/CAEf4BzbbOHQZUAe6iWaehKCPQAf3VC=hq657buqe2_yRKxaK-A@mail.gmail.com/

v2. Fix a MANIFEST issue for the source tar ball. Add dependencies for
    the installed header files so that the build doesn't overtake
    building these dependencies. Both issues reported by Arnaldo
    Carvalho de Melo <acme@...nel.org>.

Ian Rogers (14):
  tools lib api: Add install target
  tools lib subcmd: Add install target
  perf build: Install libsubcmd locally when building
  perf build: Install libapi locally when building
  perf build: Install libperf locally when building
  perf build: Install libtraceevent locally when building
  tools lib api: Add missing install headers
  tools lib perf: Add missing install headers
  tool lib symbol: Add Makefile/Build
  perf build: Install libsymbol locally when building
  perf expr: Tidy hashmap dependency
  perf thread_map: Reduce exposure of libperf internal API
  perf cpumap: Tidy libperf includes
  perf build: Use tools/lib headers from install path

 tools/lib/api/Makefile                        |  52 +++++
 tools/lib/perf/Makefile                       |  10 +-
 tools/lib/subcmd/Makefile                     |  49 +++++
 tools/lib/symbol/Build                        |   1 +
 tools/lib/symbol/Makefile                     | 115 +++++++++++
 tools/perf/.gitignore                         |   7 +-
 tools/perf/MANIFEST                           |   3 +-
 tools/perf/Makefile.config                    |   2 -
 tools/perf/Makefile.perf                      | 192 ++++++++++++++----
 tools/perf/builtin-stat.c                     |   1 +
 tools/perf/builtin-trace.c                    |   4 +-
 tools/perf/tests/cpumap.c                     |   2 +-
 tools/perf/tests/expr.c                       |   1 +
 tools/perf/tests/openat-syscall.c             |   1 +
 tools/perf/tests/pmu-events.c                 |   1 +
 tools/perf/tests/thread-map.c                 |   1 +
 tools/perf/util/Build                         |   5 -
 tools/perf/util/auxtrace.h                    |   2 +-
 tools/perf/util/bpf-loader.c                  |   4 -
 tools/perf/util/bpf_counter.c                 |   2 +-
 tools/perf/util/cpumap.c                      |   1 +
 tools/perf/util/cpumap.h                      |   2 +-
 tools/perf/util/evsel.c                       |   5 +-
 tools/perf/util/evsel.h                       |   2 -
 tools/perf/util/expr.c                        |   1 +
 tools/perf/util/expr.h                        |   7 +-
 tools/perf/util/metricgroup.c                 |   1 +
 tools/perf/util/python.c                      |   6 +-
 .../scripting-engines/trace-event-python.c    |   2 +-
 tools/perf/util/stat-shadow.c                 |   1 +
 tools/perf/util/stat.c                        |   4 -
 tools/perf/util/thread_map.c                  |   1 +
 tools/perf/util/thread_map.h                  |   2 -
 33 files changed, 402 insertions(+), 88 deletions(-)
 create mode 100644 tools/lib/symbol/Build
 create mode 100644 tools/lib/symbol/Makefile

-- 
2.38.1.431.g37b22c650d-goog