• Jiri Olsa's avatar
    perf build: Fix single target build dependency check · 8e557351
    Jiri Olsa authored
    Currently if we build a single target like:
    
      $ touch util/map.c && make util/map.o
    
    It will not rebuild util/map.o if it already exists and util/map.c is
    modified.
    
    The reason is that the top-level 'Makefile' processes util/map.o as an
    implicit rule and if util/map.o exists make considers the 'util/map.o'
    target as done and will not nest into Makefile.perf.
    
    Adding FORCE for '%', because that's what we want to nest into
    Makefile.perf for any target.
    
    Adding Makefile into phony targets, because make tries to rebuild it and
    it's also resolved as '%' target.
    Signed-off-by: default avatarJiri Olsa <jolsa@kernel.org>
    Cc: Adrian Hunter <adrian.hunter@intel.com>
    Cc: Andi Kleen <ak@linux.intel.com>
    Cc: David Ahern <dsahern@gmail.com>
    Cc: Lukas Wunner <lukas@wunner.de>
    Cc: Namhyung Kim <namhyung@kernel.org>
    Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
    Cc: Stephane Eranian <eranian@google.com>
    Link: http://lkml.kernel.org/r/1434977452-32520-4-git-send-email-jolsa@kernel.orgSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
    8e557351
Makefile 1.96 KB