1 # SPDX-License-Identifier: GPL-2.0-only
6 include include/config/auto.conf
7 include $(srctree)/scripts/Kbuild.include
10 include $(srctree)/scripts/Makefile.lib
14 quiet_cmd_cc_o_c = CC $@
15 cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $<
18 $(call if_changed_dep,cc_o_c)
21 KASAN_SANITIZE_.vmlinux.export.o := n
22 GCOV_PROFILE_.vmlinux.export.o := n
23 targets += .vmlinux.export.o
24 vmlinux: .vmlinux.export.o
27 ARCH_POSTLINK := $(wildcard $(srctree)/arch/$(SRCARCH)/Makefile.postlink)
29 # Final link of vmlinux with optional arch pass after final link
31 $< "$(LD)" "$(KBUILD_LDFLAGS)" "$(LDFLAGS_vmlinux)"; \
32 $(if $(ARCH_POSTLINK), $(MAKE) -f $(ARCH_POSTLINK) $@, true)
35 vmlinux: scripts/link-vmlinux.sh vmlinux.o $(KBUILD_LDS) FORCE
36 +$(call if_changed_dep,link_vmlinux)
38 # Add FORCE to the prequisites of a target to force it to be always rebuilt.
39 # ---------------------------------------------------------------------------
44 # Read all saved command lines and dependencies for the $(targets) we
45 # may be building above, using $(if_changed{,_dep}). As an
46 # optimization, we don't need to read them if the target does not
47 # exist, we will rebuild anyway in that case.
49 existing-targets := $(wildcard $(sort $(targets)))
51 -include $(foreach f,$(existing-targets),$(dir $(f)).$(notdir $(f)).cmd)