# SPDX-License-Identifier: GPL-2.0-only PHONY := __default__default: vmlinux include include/config/auto.confinclude $(srctree)/scripts/Kbuild.includeinclude $(srctree)/scripts/Makefile.lib targets := %.o: %.c FORCE	$(call if_changed_rule,cc_o_c) %.o: %.S FORCE	$(call if_changed_rule,as_o_S) # Built-in dtb# --------------------------------------------------------------------------- quiet_cmd_wrap_dtbs = WRAP    $@      cmd_wrap_dtbs = {							\	echo '\#include <asm-generic/vmlinux.lds.h>';			\	echo '.section .dtb.init.rodata,"a"';				\	while read dtb; do						\		symbase=__dtb_$$(basename -s .dtb "$${dtb}" | tr - _);	\		echo '.balign STRUCT_ALIGNMENT';			\		echo ".global $${symbase}_begin";			\		echo "$${symbase}_begin:";				\		echo '.incbin "'$$dtb'" ';				\		echo ".global $${symbase}_end";				\		echo "$${symbase}_end:";				\	done < $<;							\	} > $@ .builtin-dtbs.S: .builtin-dtbs-list FORCE	$(call if_changed,wrap_dtbs) quiet_cmd_gen_dtbs_list = GEN     $@      cmd_gen_dtbs_list = \	$(if $(CONFIG_BUILTIN_DTB_NAME), echo "arch/$(SRCARCH)/boot/dts/$(CONFIG_BUILTIN_DTB_NAME).dtb",:) > $@ .builtin-dtbs-list: arch/$(SRCARCH)/boot/dts/dtbs-list FORCE	$(call if_changed,$(if $(CONFIG_BUILTIN_DTB_ALL),copy,gen_dtbs_list)) targets += .builtin-dtbs-list ifdef CONFIG_GENERIC_BUILTIN_DTBtargets += .builtin-dtbs.S .builtin-dtbs.ovmlinux.unstripped: .builtin-dtbs.oendif # vmlinux.unstripped# --------------------------------------------------------------------------- ifdef CONFIG_ARCH_WANTS_PRE_LINK_VMLINUXvmlinux.unstripped: arch/$(SRCARCH)/tools/vmlinux.arch.o arch/$(SRCARCH)/tools/vmlinux.arch.o: vmlinux.o FORCE	$(Q)$(MAKE) $(build)=arch/$(SRCARCH)/tools $@endif ARCH_POSTLINK := $(wildcard $(srctree)/arch/$(SRCARCH)/Makefile.postlink) # Final link of vmlinux with optional arch pass after final linkcmd_link_vmlinux =							\	$< "$(LD)" "$(KBUILD_LDFLAGS)" "$(LDFLAGS_vmlinux)" "$@";	\	$(if $(ARCH_POSTLINK), $(MAKE) -f $(ARCH_POSTLINK) $@, true) targets += vmlinux.unstripped .vmlinux.export.ovmlinux.unstripped: scripts/link-vmlinux.sh vmlinux.o .vmlinux.export.o $(KBUILD_LDS) FORCE	+$(call if_changed_dep,link_vmlinux)ifdef CONFIG_DEBUG_INFO_BTFvmlinux.unstripped: $(RESOLVE_BTFIDS)endif ifdef CONFIG_BUILDTIME_TABLE_SORTvmlinux.unstripped: scripts/sorttableendif # vmlinux# --------------------------------------------------------------------------- remove-section-y                                   := .modinforemove-section-$(CONFIG_ARCH_VMLINUX_NEEDS_RELOCS) += '.rel*' '!.rel*.dyn'# for compatibility with binutils < 2.32# https://sourceware.org/git/?p=binutils-gdb.git;a=commit;h=c12d9fa2afe7abcbe407a00e15719e1a1350c2a7remove-section-$(CONFIG_ARCH_VMLINUX_NEEDS_RELOCS) += '.rel.*' remove-symbols := -w --strip-unneeded-symbol='__mod_device_table__*' # To avoid warnings: "empty loadable segment detected at ..." from GNU objcopy,# it is necessary to remove the PT_LOAD flag from the segment.quiet_cmd_strip_relocs = OBJCOPY $@      cmd_strip_relocs = $(OBJCOPY) $(patsubst %,--set-section-flags %=noload,$(remove-section-y)) $< $@; \                         $(OBJCOPY) $(addprefix --remove-section=,$(remove-section-y)) $(remove-symbols) $@ targets += vmlinuxvmlinux: vmlinux.unstripped FORCE	$(call if_changed,strip_relocs) # modules.builtin.modinfo# --------------------------------------------------------------------------- # .modinfo in vmlinux.unstripped is aligned to 8 bytes for compatibility with# tools that expect vmlinux to have sufficiently aligned sections but the# additional bytes used for padding .modinfo to satisfy this requirement break# certain versions of kmod with##   depmod: ERROR: kmod_builtin_iter_next: unexpected string without modname prefix## Strip the trailing padding bytes after extracting .modinfo to comply with# what kmod expects to parse.quiet_cmd_modules_builtin_modinfo = GEN     $@      cmd_modules_builtin_modinfo = $(cmd_objcopy); \                                    sed -i 's/\x00\+$$/\x00/g' $@ OBJCOPYFLAGS_modules.builtin.modinfo := -j .modinfo -O binary targets += modules.builtin.modinfomodules.builtin.modinfo: vmlinux.unstripped FORCE	$(call if_changed,modules_builtin_modinfo) # modules.builtin# --------------------------------------------------------------------------- __default: modules.builtin # The second line aids cases where multiple modules share the same object. quiet_cmd_modules_builtin = GEN     $@      cmd_modules_builtin = \	tr '\0' '\n' < $< | \	sed -n 's/^[[:alnum:]:_]*\.file=//p' | \	tr ' ' '\n' | uniq | sed -e 's:^:kernel/:' -e 's/$$/.ko/' > $@ targets += modules.builtinmodules.builtin: modules.builtin.modinfo FORCE	$(call if_changed,modules_builtin) # modules.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.rangesmodules.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.unstripped	@: endif # Add FORCE to the prerequisites of a target to force it to be always rebuilt.# --------------------------------------------------------------------------- PHONY += FORCEFORCE: # 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)