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build-sys: fix building with make CFLAGS=.. argument

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When calling make with a CFLAGS=.. argument, the -g/-O filter is not
applied, which may result with build failure with ASAN for example. It
could be solved with an 'override' directive on CFLAGS, but that would
actually prevent setting different CFLAGS manually.

Instead, filter the CFLAGS argument from the top-level Makefile (so
you could still call make with a different CFLAGS argument on a
rom/Makefile manually)

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20160805082421.21994-2-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Marc-André Lureau 2016-08-05 12:23:46 +04:00 committed by Paolo Bonzini
parent 7f2569246c
commit a9c87304b7
2 changed files with 2 additions and 3 deletions
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3
Makefile
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@ -225,8 +225,9 @@ dtc/%:
$(SUBDIR_RULES): libqemuutil.a libqemustub.a $(common-obj-y) $(qom-obj-y) $(crypto-aes-obj-$(CONFIG_USER_ONLY))
ROMSUBDIR_RULES=$(patsubst %,romsubdir-%, $(ROMS))
# Only keep -O and -g cflags
romsubdir-%:
$(call quiet-command,$(MAKE) $(SUBDIR_MAKEFLAGS) -C pc-bios/$* V="$(V)" TARGET_DIR="$*/",)
$(call quiet-command,$(MAKE) $(SUBDIR_MAKEFLAGS) -C pc-bios/$* V="$(V)" TARGET_DIR="$*/" CFLAGS="$(filter -O% -g%,$(CFLAGS))",)
ALL_SUBDIRS=$(TARGET_DIRS) $(patsubst %,pc-bios/%, $(ROMS))

2
pc-bios/optionrom/Makefile
View File

@ -24,8 +24,6 @@ QEMU_CFLAGS += $(call cc-option, $(QEMU_CFLAGS), -no-integrated-as)
QEMU_CFLAGS += -m32 -include $(SRC_PATH)/pc-bios/optionrom/code16gcc.h
endif
# Drop gcov and glib flags
CFLAGS := $(filter -O% -g%, $(CFLAGS))
QEMU_INCLUDES += -I$(SRC_PATH)
Wa = -Wa,