perf build: Add feature-dump target
authorJiri Olsa <jolsa@kernel.org>
Fri, 15 Jan 2016 04:00:17 +0000 (04:00 +0000)
committerArnaldo Carvalho de Melo <acme@redhat.com>
Fri, 15 Jan 2016 19:32:00 +0000 (16:32 -0300)
commitb8e52be00ca7e7659e8ee172ce9e6f0c6af28ec8
treee1256b3b57121cbbc17d7cf4711c1348347e71fd
parentc15e758c4bd7fbe38983e36258541ffcf81e1500
perf build: Add feature-dump target

To provide FEATURE-DUMP into $(FEATURE_DUMP_COPY) if defined, with no
further action.

Get feature dump of the current build:
  $ make feature-dump
    BUILD:   Doing 'make -j4' parallel build

  Auto-detecting system features:
  ...                         dwarf: [ on  ]

  FEATURE-DUMP file available in FEATURE-DUMP

Get feature dump static build into /tmp/fd file:

  $ make feature-dump FEATURE_DUMP_COPY=/tmp/fd LDFLAGS=-static
    BUILD:   Doing 'make -j4' parallel build

  Auto-detecting system features:
  ...                         dwarf: [ OFF ]

  SNIP

  FEATURE-DUMP file copied into /tmp/fd

Suggested-by: Wang Nan <wangnan0@huawei.com>
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Zefan Li <lizefan@huawei.com>
Cc: pi3orama@163.com
Link: http://lkml.kernel.org/r/1452830421-77757-6-git-send-email-wangnan0@huawei.com
Signed-off-by: Wang Nan <wangnan0@huawei.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
tools/perf/Makefile.perf