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| author | Ingo Molnar <mingo@kernel.org> | 2013-10-10 08:05:25 +0200 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2013-10-14 10:29:07 -0300 |
| commit | fcf92585014f0a0e390d2819de8278ae90da5842 (patch) | |
| tree | 2bc7eb7876b8d5d79959bb078cde774ccc428e94 /tools/perf/Makefile | |
| parent | 3fb66335e13ef7426affe9efa48c08857202c1cb (diff) | |
| download | linux-fcf92585014f0a0e390d2819de8278ae90da5842.tar.bz2 | |
tools/perf/build: Pass through DEBUG parameter
Arnaldo reported that 'make DEBUG=1' does not work anymore.
The reason is that 'Makefile' only passes it through to
'Makefile.perf' via the environment, but 'Makefile.perf'
checks that it's a command line option:
ifeq ("$(origin DEBUG)", "command line")
PERF_DEBUG = $(DEBUG)
endif
So pass it through properly, and also clean up DEBUG parameter
handling while at it and fix a couple of annoyances:
- DEBUG=0 used to be interpreted as 'debugging on'. Turn it
into 'debugging off' instead.
- Same was the case for 'DEBUG=' - turn that into debug-off
as well.
- Pass in just a clean, sanitized 'DEBUG' value and get rid of
the intermediate, unnecessary PERF_DEBUG variable.
Reported-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/Makefile')
| -rw-r--r-- | tools/perf/Makefile | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/tools/perf/Makefile b/tools/perf/Makefile index 914704495166..4835618a5608 100644 --- a/tools/perf/Makefile +++ b/tools/perf/Makefile @@ -37,12 +37,25 @@ ifneq ($(O),) FULL_O := $(shell readlink -f $(O) || echo $(O)) endif +# +# Only accept the 'DEBUG' variable from the command line: +# +ifeq ("$(origin DEBUG)", "command line") + ifeq ($(DEBUG),) + override DEBUG = 0 + else + SET_DEBUG = "DEBUG=$(DEBUG)" + endif +else + override DEBUG = 0 +endif + define print_msg @printf ' BUILD: Doing '\''make \033[33m-j'$(JOBS)'\033[m'\'' parallel build\n' endef define make - @$(MAKE) -f Makefile.perf --no-print-directory -j$(JOBS) O=$(FULL_O) $@ + @$(MAKE) -f Makefile.perf --no-print-directory -j$(JOBS) O=$(FULL_O) $(SET_DEBUG) $@ endef # |