perf check: Share the feature status printing routine with 'perf version'

Both had the same open coded functions, share them so that we can add
tips for opt-in features such as libunwind, coresight, etc.

Examples of use:

  $ perf check feature libcapstone
             libcapstone: [ on  ]  # HAVE_LIBCAPSTONE_SUPPORT
  $ perf check feature libunwind
               libunwind: [ OFF ]  # HAVE_LIBUNWIND_SUPPORT
  $ perf version --build-options
  perf version 6.15.rc1.g113e3df8ccc5
                     aio: [ on  ]  # HAVE_AIO_SUPPORT
                     bpf: [ on  ]  # HAVE_LIBBPF_SUPPORT
           bpf_skeletons: [ on  ]  # HAVE_BPF_SKEL
              debuginfod: [ OFF ]  # HAVE_DEBUGINFOD_SUPPORT
                   dwarf: [ on  ]  # HAVE_LIBDW_SUPPORT
      dwarf_getlocations: [ on  ]  # HAVE_LIBDW_SUPPORT
            dwarf-unwind: [ on  ]  # HAVE_DWARF_UNWIND_SUPPORT
                auxtrace: [ on  ]  # HAVE_AUXTRACE_SUPPORT
                  libbfd: [ OFF ]  # HAVE_LIBBFD_SUPPORT
             libcapstone: [ on  ]  # HAVE_LIBCAPSTONE_SUPPORT
               libcrypto: [ on  ]  # HAVE_LIBCRYPTO_SUPPORT
      libdw-dwarf-unwind: [ on  ]  # HAVE_LIBDW_SUPPORT
                  libelf: [ on  ]  # HAVE_LIBELF_SUPPORT
                 libnuma: [ on  ]  # HAVE_LIBNUMA_SUPPORT
              libopencsd: [ on  ]  # HAVE_CSTRACE_SUPPORT
                 libperl: [ on  ]  # HAVE_LIBPERL_SUPPORT
                 libpfm4: [ on  ]  # HAVE_LIBPFM
               libpython: [ on  ]  # HAVE_LIBPYTHON_SUPPORT
                libslang: [ on  ]  # HAVE_SLANG_SUPPORT
           libtraceevent: [ on  ]  # HAVE_LIBTRACEEVENT
               libunwind: [ OFF ]  # HAVE_LIBUNWIND_SUPPORT
                    lzma: [ on  ]  # HAVE_LZMA_SUPPORT
  numa_num_possible_cpus: [ on  ]  # HAVE_LIBNUMA_SUPPORT
                    zlib: [ on  ]  # HAVE_ZLIB_SUPPORT
                    zstd: [ on  ]  # HAVE_ZSTD_SUPPORT
  $

Tested-by: Ingo Molnar <mingo@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Dmitriy Vyukov <dvyukov@google.com>
Cc: Howard Chu <howardchu95@gmail.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/Z_Rz10stoLzBocIO@x1
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/tools/perf/builtin.h b/tools/perf/builtin.h
index a07e93c53848..b7e60d19fad9 100644
--- a/tools/perf/builtin.h
+++ b/tools/perf/builtin.h
@@ -14,6 +14,9 @@ struct feature_status {
 	.is_builtin = IS_BUILTIN(macro_) }
 
 extern struct feature_status supported_features[];
+
+void feature_status__printf(const struct feature_status *feature);
+
 struct cmdnames;
 
 void list_common_cmds_help(void);