OpenCloudOS-Kernel/tools/perf/config/feature-checks
Ingo Molnar 8b6eb56a95 tools/perf/build: Add 'autodep' functionality, generate feature test dependencies automatically
Use GCC's -MD feature to generate a dependency file for each feature test .c file,
and include that .d file in the config/feature-checks/Makefile.

This allows us to do two things:

 - speed up feature tests
 - detect removal or changes in build dependencies - including system libraries/headers

Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/n/tip-Jfma8pmPnnqzpxjbs3hpgmsj@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-10-09 08:48:29 +02:00
..
Makefile tools/perf/build: Add 'autodep' functionality, generate feature test dependencies automatically 2013-10-09 08:48:29 +02:00
test-hello.c