[tip: perf/core] libsubcmd: Use -O0 with DEBUG=1

[tip-bot2 for James Clark]

The following commit has been merged into the perf/core branch of tip:

Commit-ID:     22bd8f1b5a1dd168ba4eba27cb17643a11012f5d
Gitweb:        https://git.kernel.org/tip/22bd8f1b5a1dd168ba4eba27cb17643a11012f5d
Author:        James Clark <James.Clark@xxxxxxx>
AuthorDate:    Mon, 28 Oct 2019 11:34:01 
Committer:     Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitterDate: Wed, 06 Nov 2019 15:49:39 -03:00

libsubcmd: Use -O0 with DEBUG=1

When a 'make DEBUG=1' build is done, the command parser is still built
with -O6 and is hard to step through, fix it making it use -O0 in that
case.

Signed-off-by: James Clark <james.clark@xxxxxxx>
Cc: Adrian Hunter <adrian.hunter@xxxxxxxxx>
Cc: Ian Rogers <irogers@xxxxxxxxxx>
Cc: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Josh Poimboeuf <jpoimboe@xxxxxxxxxx>
Cc: Namhyung Kim <namhyung@xxxxxxxxxx>
Cc: nd <nd@xxxxxxx>
Link: http://lore.kernel.org/lkml/20191028113340.4282-1-james.clark@xxxxxxx
[ split from a larger patch ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
 tools/lib/subcmd/Makefile | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/tools/lib/subcmd/Makefile b/tools/lib/subcmd/Makefile
index 352c606..1c777a7 100644
--- a/tools/lib/subcmd/Makefile
+++ b/tools/lib/subcmd/Makefile
@@ -27,7 +27,9 @@ ifeq ($(DEBUG),0)
   endif
 endif
 
-ifeq ($(CC_NO_CLANG), 0)
+ifeq ($(DEBUG),1)
+  CFLAGS += -O0
+else ifeq ($(CC_NO_CLANG), 0)
   CFLAGS += -O3
 else
   CFLAGS += -O6