# 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)

# 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)