[PATCH 3/7] perf: Correct Makefile.include

From: Borislav Petkov
Date: Wed Feb 20 2013 - 10:33:33 EST

From: Borislav Petkov <bp@xxxxxxx>

It looks at O= and adjusts the $(OUTPUT) variable based on what the
output directory will be. However, when O is defined but empty, it
wrongly becomes the user's $HOME dir which is not what we want. So check
it is not empty before working with it further.

Signed-off-by: Borislav Petkov <bp@xxxxxxx>
tools/scripts/Makefile.include | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/tools/scripts/Makefile.include b/tools/scripts/Makefile.include
index 00a05f45b39a..f03e681f8891 100644
--- a/tools/scripts/Makefile.include
+++ b/tools/scripts/Makefile.include
@@ -1,3 +1,4 @@
+ifneq ($(O),)
ifeq ($(origin O), command line)
dummy := $(if $(shell test -d $(O) || echo $(O)),$(error O=$(O) does not exist),)
ABSOLUTE_O := $(shell cd $(O) ; pwd)
@@ -7,9 +8,10 @@ ifeq ($(objtree),)
objtree := $(O)

-ifneq ($(OUTPUT),)
# check that the output directory actually exists
+ifneq ($(OUTPUT),)
OUTDIR := $(shell cd $(OUTPUT) && /bin/pwd)
$(if $(OUTDIR),, $(error output directory "$(OUTPUT)" does not exist))

To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/