1PHONY := __default 2__default: 3 4include include/config/auto.conf 5include $(srctree)/scripts/Kbuild.include 6include $(srctree)/scripts/Makefile.lib 7 8native-objs := $(patsubst %.o,%.thinlto-native.o,$(call read-file, vmlinux.thinlto-index)) 9 10__default: $(native-objs) 11 12# Generate .thinlto-native.o (obj) from .o (bitcode) and .thinlto.bc (summary) files 13# --------------------------------------------------------------------------- 14quiet_cmd_cc_o_bc = CC $(quiet_modtag) $@ 15 be_flags = $(shell sed -n '/saved_c_flags_/s/.*:= //p' \ 16 $(dir $(<)).$(notdir $(<)).cmd) 17 cmd_cc_o_bc = \ 18 $(CC) $(be_flags) -x ir -fno-lto -Wno-unused-command-line-argument \ 19 -fthinlto-index=$(word 2, $^) -c -o $@ $< 20 21targets += $(native-objs) 22$(native-objs): %.thinlto-native.o: %.o %.o.thinlto.bc FORCE 23 $(call if_changed,cc_o_bc) 24 25# Add FORCE to the prerequisites of a target to force it to be always rebuilt. 26# --------------------------------------------------------------------------- 27 28PHONY += FORCE 29FORCE: 30 31# Read all saved command lines and dependencies for the $(targets) we 32# may be building above, using $(if_changed{,_dep}). As an 33# optimization, we don't need to read them if the target does not 34# exist, we will rebuild anyway in that case. 35 36existing-targets := $(wildcard $(sort $(targets))) 37 38-include $(foreach f, $(existing-targets),$(dir $(f)).$(notdir $(f)).cmd) 39 40.PHONY: $(PHONY) 41