linux-kernel - [PATCH v1 00/14] Fix perf tools/lib includes

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Date:   Mon,  7 Nov 2022 23:35:04 -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 v1 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/

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/Makefile.config                    |   2 -
 tools/perf/Makefile.perf                      | 152 ++++++++++++------
 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 -
 32 files changed, 361 insertions(+), 86 deletions(-)
 create mode 100644 tools/lib/symbol/Build
 create mode 100644 tools/lib/symbol/Makefile

-- 
2.38.1.431.g37b22c650d-goog