makefile.rules

来自「LINUX 2.6.17.4的源码」· RULES 代码 · 共 33 行

# ===========================================================================
# arch/um: Generic definitions
# ===========================================================================

USER_SINGLE_OBJS := \
	$(foreach f,$(patsubst %.o,%,$(obj-y) $(obj-m)),$($(f)-objs))
USER_OBJS += $(filter %_user.o,$(obj-y) $(obj-m)  $(USER_SINGLE_OBJS))
USER_OBJS := $(foreach file,$(USER_OBJS),$(obj)/$(file))

$(USER_OBJS:.o=.%): \
	c_flags = -Wp,-MD,$(depfile) $(USER_CFLAGS) $(CFLAGS_$(*F).o)
$(USER_OBJS) : CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ \
	-Dunix -D__unix__ -D__$(SUBARCH)__

# These are like USER_OBJS but filter USER_CFLAGS through unprofile instead of
# using it directly.
UNPROFILE_OBJS := $(foreach file,$(UNPROFILE_OBJS),$(obj)/$(file))

$(UNPROFILE_OBJS:.o=.%): \
	c_flags = -Wp,-MD,$(depfile) $(call unprofile,$(USER_CFLAGS)) $(CFLAGS_$(*F).o)
$(UNPROFILE_OBJS) : CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ \
	-Dunix -D__unix__ -D__$(SUBARCH)__

# The stubs and unmap.o can't try to call mcount or update basic block data
define unprofile
	$(patsubst -pg,,$(patsubst -fprofile-arcs -ftest-coverage,,$(1)))
endef

ifdef subarch-obj-y
obj-y += subarch.o
subarch-y = $(addprefix ../../$(SUBARCH)/,$(subarch-obj-y))
endif