1 # SPDX-License-Identifier: GPL-2.0-only 2 3 PHONY := __default 4 __default: vmlinux 5 6 include include/config/auto.conf 7 include $(srctree)/scripts/Kbuild.include 8 9 # for c_flags 10 include $(srctree)/scripts/Makefile.lib 11 12 targets := 13 14 quiet_cmd_cc_o_c = CC $@ 15 cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $ 16 17 %.o: %.c FORCE 18 $(call if_changed_dep,cc_o_c) 19 20 ifdef CONFIG_MODULES 21 targets += .vmlinux.export.o 22 vmlinux: .vmlinux.export.o 23 endif 24 25 ARCH_POSTLINK := $(wildcard $(srctree)/arch/$( 26 27 # Final link of vmlinux with optional arch pas 28 cmd_link_vmlinux = 29 $< "$(LD)" "$(KBUILD_LDFLAGS)" "$(LDFL 30 $(if $(ARCH_POSTLINK), $(MAKE) -f $(AR 31 32 targets += vmlinux 33 vmlinux: scripts/link-vmlinux.sh vmlinux.o $(K 34 +$(call if_changed_dep,link_vmlinux) 35 36 # module.builtin.ranges 37 # -------------------------------------------- 38 ifdef CONFIG_BUILTIN_MODULE_RANGES 39 __default: modules.builtin.ranges 40 41 quiet_cmd_modules_builtin_ranges = GEN $@ 42 cmd_modules_builtin_ranges = gawk -f $(r 43 44 targets += modules.builtin.ranges 45 modules.builtin.ranges: $(srctree)/scripts/gen 46 modules.builtin vmlinu 47 $(call if_changed,modules_builtin_rang 48 49 vmlinux.map: vmlinux 50 @: 51 52 endif 53 54 # Add FORCE to the prerequisites of a target t 55 # -------------------------------------------- 56 57 PHONY += FORCE 58 FORCE: 59 60 # Read all saved command lines and dependencie 61 # may be building above, using $(if_changed{,_ 62 # optimization, we don't need to read them if 63 # exist, we will rebuild anyway in that case. 64 65 existing-targets := $(wildcard $(sort $(target 66 67 -include $(foreach f,$(existing-targets),$(dir 68 69 .PHONY: $(PHONY)
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