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- # SPDX-License-Identifier: GPL-2.0-only
- PHONY := __default
- __default: vmlinux
- include include/config/auto.conf
- include $(srctree)/scripts/Kbuild.include
- # for c_flags
- include $(srctree)/scripts/Makefile.lib
- targets :=
- quiet_cmd_cc_o_c = CC $@
- cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $<
- %.o: %.c FORCE
- $(call if_changed_dep,cc_o_c)
- ifdef CONFIG_MODULES
- targets += .vmlinux.export.o
- vmlinux: .vmlinux.export.o
- endif
- ARCH_POSTLINK := $(wildcard $(srctree)/arch/$(SRCARCH)/Makefile.postlink)
- # Final link of vmlinux with optional arch pass after final link
- cmd_link_vmlinux = \
- $< "$(LD)" "$(KBUILD_LDFLAGS)" "$(LDFLAGS_vmlinux)"; \
- $(if $(ARCH_POSTLINK), $(MAKE) -f $(ARCH_POSTLINK) $@, true)
- targets += vmlinux
- vmlinux: scripts/link-vmlinux.sh vmlinux.o $(KBUILD_LDS) FORCE
- +$(call if_changed_dep,link_vmlinux)
- ifdef CONFIG_BUILDTIME_TABLE_SORT
- vmlinux: scripts/sorttable
- endif
- # module.builtin.ranges
- # ---------------------------------------------------------------------------
- ifdef CONFIG_BUILTIN_MODULE_RANGES
- __default: modules.builtin.ranges
- quiet_cmd_modules_builtin_ranges = GEN $@
- cmd_modules_builtin_ranges = gawk -f $(real-prereqs) > $@
- targets += modules.builtin.ranges
- modules.builtin.ranges: $(srctree)/scripts/generate_builtin_ranges.awk \
- modules.builtin vmlinux.map vmlinux.o.map FORCE
- $(call if_changed,modules_builtin_ranges)
- vmlinux.map: vmlinux
- @:
- endif
- # Add FORCE to the prerequisites of a target to force it to be always rebuilt.
- # ---------------------------------------------------------------------------
- PHONY += FORCE
- FORCE:
- # Read all saved command lines and dependencies for the $(targets) we
- # may be building above, using $(if_changed{,_dep}). As an
- # optimization, we don't need to read them if the target does not
- # exist, we will rebuild anyway in that case.
- existing-targets := $(wildcard $(sort $(targets)))
- -include $(foreach f,$(existing-targets),$(dir $(f)).$(notdir $(f)).cmd)
- .PHONY: $(PHONY)
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