[U-Boot] [PATCH v9 37/38] kbuild: Do not generate .*.su files at the top directory

Masahiro Yamada
2014-02-04T08:24:44Z

Without this workaround, you will see a lot of ".*.su" files
at the top directory after building with a compiler
which supports "-fstack-usage" option.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
---

Changes in v9: None
Changes in v8: None
Changes in v7: None
Changes in v6: None
Changes in v5: None
Changes in v4:
- Newly added

Changes in v3: None
Changes in v2: None

scripts/Kbuild.include | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/scripts/Kbuild.include b/scripts/Kbuild.include
index 6113c13..6504571 100644
--- a/scripts/Kbuild.include
+++ b/scripts/Kbuild.include
@@ -85,14 +85,16 @@ TMPOUT := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/)
# Usage: option = $(call try-run, $(CC)...-o "$$TMP",option-ok,otherwise)
# Exit code chooses option. "$$TMP" is can be used as temporary file and
# is automatically cleaned up.
+# modifed for U-Boot: prevent cc-option from leaving .*.su files
try-run = $(shell set -e; \
TMP="$(TMPOUT).$$$$.tmp"; \
TMPO="$(TMPOUT).$$$$.o"; \
+ TMPSU="$(TMPOUT).$$$$.su"; \
if ($(1)) >/dev/null 2>&1; \
then echo "$(2)"; \
else echo "$(3)"; \
fi; \
- rm -f "$$TMP" "$$TMPO")
+ rm -f "$$TMP" "$$TMPO" "$$TMPSU")

# as-option
# Usage: cflags-y += $(call as-option,-Wa$(comma)-isa=foo,)
--
1.8.3.2