# SPDX-License-Identifier: GPL-2.0# ==========================================================================# Installing modules# ========================================================================== PHONY := __modinst__modinst: include include/config/auto.confinclude $(srctree)/scripts/Kbuild.include install-y := ifeq ($(KBUILD_EXTMOD)$(sign-only),) # remove the old directory and symlink$(shell rm -fr $(MODLIB)/kernel $(MODLIB)/build) install-$(CONFIG_MODULES) += $(addprefix $(MODLIB)/, build modules.order) $(MODLIB)/build: FORCE	$(call cmd,symlink) quiet_cmd_symlink = SYMLINK $@      cmd_symlink = ln -s $(CURDIR) $@ $(MODLIB)/modules.order: modules.order FORCE	$(call cmd,install_modorder) quiet_cmd_install_modorder = INSTALL $@      cmd_install_modorder = sed 's:^\(.*\)\.o$$:kernel/\1.ko:' $< > $@ # Install modules.builtin(.modinfo) even when CONFIG_MODULES is disabled.install-y += $(addprefix $(MODLIB)/, modules.builtin modules.builtin.modinfo) $(addprefix $(MODLIB)/, modules.builtin modules.builtin.modinfo): $(MODLIB)/%: % FORCE	$(call cmd,install) endif modules := $(call read-file, $(MODORDER)) ifeq ($(KBUILD_EXTMOD),)dst := $(MODLIB)/kernelelseINSTALL_MOD_DIR ?= updatesdst := $(MODLIB)/$(INSTALL_MOD_DIR)endif $(foreach x, % :, $(if $(findstring $x, $(dst)), \	$(error module installation path cannot contain '$x'))) suffix-y				:=suffix-$(CONFIG_MODULE_COMPRESS_GZIP)	:= .gzsuffix-$(CONFIG_MODULE_COMPRESS_XZ)	:= .xzsuffix-$(CONFIG_MODULE_COMPRESS_ZSTD)	:= .zst modules := $(patsubst $(extmod_prefix)%.o, $(dst)/%.ko$(suffix-y), $(modules))install-$(CONFIG_MODULES) += $(modules) __modinst: $(install-y)	@: ## Installation#quiet_cmd_install = INSTALL $@      cmd_install = cp $< $@ # Strip## INSTALL_MOD_STRIP, if defined, will cause modules to be stripped after they# are installed. If INSTALL_MOD_STRIP is '1', then the default option# --strip-debug will be used. Otherwise, INSTALL_MOD_STRIP value will be used# as the options to the strip command.ifdef INSTALL_MOD_STRIP ifeq ($(INSTALL_MOD_STRIP),1)strip-option := --strip-debugelsestrip-option := $(INSTALL_MOD_STRIP)endif quiet_cmd_strip = STRIP   $@      cmd_strip = $(STRIP) $(strip-option) $@ else quiet_cmd_strip =      cmd_strip = : endif ## Signing# Don't stop modules_install even if we can't sign external modules.#ifeq ($(filter pkcs11:%, $(CONFIG_MODULE_SIG_KEY)),)sig-key := $(if $(wildcard $(CONFIG_MODULE_SIG_KEY)),,$(srctree)/)$(CONFIG_MODULE_SIG_KEY)elsesig-key := $(CONFIG_MODULE_SIG_KEY)endifquiet_cmd_sign = SIGN    $@      cmd_sign = scripts/sign-file $(CONFIG_MODULE_SIG_HASH) "$(sig-key)" certs/signing_key.x509 $@ \                 $(if $(KBUILD_EXTMOD),|| true) ifeq ($(sign-only),) # During modules_install, modules are signed only when CONFIG_MODULE_SIG_ALL=y.ifndef CONFIG_MODULE_SIG_ALLquiet_cmd_sign :=      cmd_sign := :endif # Create necessary directories$(foreach dir, $(sort $(dir $(install-y))), $(shell mkdir -p $(dir))) $(dst)/%.ko: $(extmod_prefix)%.ko FORCE	$(call cmd,install)	$(call cmd,strip)	$(call cmd,sign) ifdef CONFIG_MODULES__modinst: depmod PHONY += depmoddepmod: $(install-y)	$(call cmd,depmod) quiet_cmd_depmod = DEPMOD  $(MODLIB)      cmd_depmod = $(srctree)/scripts/depmod.sh $(KERNELRELEASE)endif else $(dst)/%.ko: FORCE	$(call cmd,sign) endif ## Compression#quiet_cmd_gzip = GZIP    $@      cmd_gzip = $(KGZIP) -n -f $<quiet_cmd_xz = XZ      $@      cmd_xz = $(XZ) --check=crc32 --lzma2=dict=1MiB -f $<quiet_cmd_zstd = ZSTD    $@      cmd_zstd = $(ZSTD) -T0 --rm -f -q $< $(dst)/%.ko.gz: $(dst)/%.ko FORCE	$(call cmd,gzip) $(dst)/%.ko.xz: $(dst)/%.ko FORCE	$(call cmd,xz) $(dst)/%.ko.zst: $(dst)/%.ko FORCE	$(call cmd,zstd) PHONY += FORCEFORCE: .PHONY: $(PHONY)