From f77bf01425b11947eeb3b5b54685212c302741b8 Mon Sep 17 00:00:00 2001 From: Sam Ravnborg Date: Mon, 15 Oct 2007 22:25:06 +0200 Subject: kbuild: introduce ccflags-y, asflags-y and ldflags-y Introduce ccflags-y, asflags-y and ldflags-y so we soon can deprecate use of EXTRA_CFLAGS, EXTRA_AFLAGS and EXTRA_LDFLAGS. This patch does not touch any in-tree users - thats next round. Lets get this committed first and then fix the users of the soon to be deprecated variants next. The rationale behind this change is to introduce support for makefile fragments like: ccflags-$(CONFIG_WHATEVER_DEBUG) := -DDEBUG As a replacement for the uglier: ifeq ($(CONFIG_WHATEVER_DEBUG),y) EXTRA_CFLAGS := -DDEBUG endif Signed-off-by: Sam Ravnborg --- scripts/Makefile.lib | 16 +++++++++++----- 1 file changed, 11 insertions(+), 5 deletions(-) (limited to 'scripts/Makefile.lib') diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib index 95e6e0fbdbd0..3c5e88bfecf1 100644 --- a/scripts/Makefile.lib +++ b/scripts/Makefile.lib @@ -1,3 +1,9 @@ +# Backward compatibility +asflags-y += $(EXTRA_AFLAGS) +ccflags-y += $(EXTRA_CFLAGS) +cppflags-y += $(EXTRA_CPPFLAGS) +ldflags-y += $(EXTRA_LDFLAGS) + # Figure out what we need to build from the various variables # =========================================================================== @@ -84,9 +90,9 @@ basename_flags = -D"KBUILD_BASENAME=KBUILD_STR($(call name-fix,$(basetarget)))" modname_flags = $(if $(filter 1,$(words $(modname))),\ -D"KBUILD_MODNAME=KBUILD_STR($(call name-fix,$(modname)))") -_c_flags = $(KBUILD_CFLAGS) $(EXTRA_CFLAGS) $(CFLAGS_$(basetarget).o) -_a_flags = $(KBUILD_AFLAGS) $(EXTRA_AFLAGS) $(AFLAGS_$(basetarget).o) -_cpp_flags = $(KBUILD_CPPFLAGS) $(EXTRA_CPPFLAGS) $(CPPFLAGS_$(@F)) +_c_flags = $(KBUILD_CFLAGS) $(ccflags-y) $(CFLAGS_$(basetarget).o) +_a_flags = $(KBUILD_AFLAGS) $(asflags-y) $(AFLAGS_$(basetarget).o) +_cpp_flags = $(KBUILD_CPPFLAGS) $(cppflags-y) $(CPPFLAGS_$(@F)) # If building the kernel in a separate objtree expand all occurrences # of -Idir to -I$(srctree)/dir except for absolute paths (starting with '/'). @@ -115,7 +121,7 @@ a_flags = -Wp,-MD,$(depfile) $(NOSTDINC_FLAGS) $(KBUILD_CPPFLAGS) \ cpp_flags = -Wp,-MD,$(depfile) $(NOSTDINC_FLAGS) $(__cpp_flags) -ld_flags = $(LDFLAGS) $(EXTRA_LDFLAGS) +ld_flags = $(LDFLAGS) $(ldflags-y) # Finds the multi-part object the current object will be linked into modname-multi = $(sort $(foreach m,$(multi-used),\ @@ -145,7 +151,7 @@ $(obj)/%:: $(src)/%_shipped # --------------------------------------------------------------------------- quiet_cmd_ld = LD $@ -cmd_ld = $(LD) $(LDFLAGS) $(EXTRA_LDFLAGS) $(LDFLAGS_$(@F)) \ +cmd_ld = $(LD) $(LDFLAGS) $(ldflags-y) $(LDFLAGS_$(@F)) \ $(filter-out FORCE,$^) -o $@ # Objcopy -- cgit v1.2.3-59-g8ed1b