kbuild: enable use of AFLAGS and CFLAGS on commandline (52bcc330) · Commits · 戴 / test

The previous patches was preparation. With this patch we can now say: make CFLAGS=-Os vmlinux And the option specified will be appended to the options passed to gcc for C files. For assembler use: make AFLAGS=-foo vmlinux for the same functionality. Signed-off-by:

Sam Ravnborg <sam@ravnborg.org>

Makefile

+4 −0

Original line number	Diff line number	Diff line
		@@ -523,6 +523,10 @@ KBUILD_CFLAGS += $(call cc-option,-Wdeclaration-after-statement,)
		# disable pointer signed / unsigned warnings in gcc 4.0
		KBUILD_CFLAGS += $(call cc-option,-Wno-pointer-sign,)

		# Add user supplied AFLAGS and CFLAGS as the last assignments
		KBUILD_AFLAGS += $(AFLAGS)
		KBUILD_CFLAGS += $(CFLAGS)

		# Use --build-id when available.
		LDFLAGS_BUILD_ID = $(patsubst -Wl$(comma)%,%,\
		$(call ld-option, -Wl$(comma)--build-id,))

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