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kbuild: Do not generate .*.su files at the top directory

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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>
This commit is contained in:
Masahiro Yamada 2014-02-04 17:24:44 +09:00 • committed by Tom Rini
parent b831bb36bb
commit 9a368d0f58
1 changed files with 3 additions and 1 deletions
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4
scripts/Kbuild.include
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@ -85,14 +85,16 @@ TMPOUT := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/)
# Usage: option = $(call try-run, $(CC)...-o "$$TMP",option-ok,otherwise) # Usage: option = $(call try-run, $(CC)...-o "$$TMP",option-ok,otherwise)
# Exit code chooses option. "$$TMP" is can be used as temporary file and # Exit code chooses option. "$$TMP" is can be used as temporary file and
# is automatically cleaned up. # is automatically cleaned up.
# modifed for U-Boot: prevent cc-option from leaving .*.su files
try-run = $(shell set -e; \ try-run = $(shell set -e; \
TMP="$(TMPOUT).$$$$.tmp"; \ TMP="$(TMPOUT).$$$$.tmp"; \
TMPO="$(TMPOUT).$$$$.o"; \ TMPO="$(TMPOUT).$$$$.o"; \
TMPSU="$(TMPOUT).$$$$.su"; \
if ($(1)) >/dev/null 2>&1; \ if ($(1)) >/dev/null 2>&1; \
then echo "$(2)"; \ then echo "$(2)"; \
else echo "$(3)"; \ else echo "$(3)"; \
fi; \ fi; \
rm -f "$$TMP" "$$TMPO") rm -f "$$TMP" "$$TMPO" "$$TMPSU")
# as-option # as-option
# Usage: cflags-y += $(call as-option,-Wa$(comma)-isa=foo,) # Usage: cflags-y += $(call as-option,-Wa$(comma)-isa=foo,)