1# SPDX-License-Identifier: GPL-2.0 2# ========================================================================== 3# Installing modules 4# ========================================================================== 5 6PHONY := __modinst 7__modinst: 8 9include include/config/auto.conf 10include $(srctree)/scripts/Kbuild.include 11 12install-y := 13 14ifeq ($(KBUILD_EXTMOD)$(modules_sign_only),) 15 16# remove the old directory and symlink 17$(shell rm -fr $(MODLIB)/kernel $(MODLIB)/build) 18 19install-$(CONFIG_MODULES) += $(addprefix $(MODLIB)/, build modules.order) 20 21$(MODLIB)/build: FORCE 22 $(call cmd,symlink) 23 24quiet_cmd_symlink = SYMLINK $@ 25 cmd_symlink = ln -s $(CURDIR) $@ 26 27$(MODLIB)/modules.order: modules.order FORCE 28 $(call cmd,install_modorder) 29 30quiet_cmd_install_modorder = INSTALL $@ 31 cmd_install_modorder = sed 's:^\(.*\)\.o$$:kernel/\1.ko:' $< > $@ 32 33# Install modules.builtin(.modinfo) even when CONFIG_MODULES is disabled. 34install-y += $(addprefix $(MODLIB)/, modules.builtin modules.builtin.modinfo) 35 36$(addprefix $(MODLIB)/, modules.builtin modules.builtin.modinfo): $(MODLIB)/%: % FORCE 37 $(call cmd,install) 38 39endif 40 41modules := $(call read-file, $(MODORDER)) 42 43ifeq ($(KBUILD_EXTMOD),) 44dst := $(MODLIB)/kernel 45else 46INSTALL_MOD_DIR ?= updates 47dst := $(MODLIB)/$(INSTALL_MOD_DIR) 48endif 49 50$(foreach x, % :, $(if $(findstring $x, $(dst)), \ 51 $(error module installation path cannot contain '$x'))) 52 53suffix-y := 54suffix-$(CONFIG_MODULE_COMPRESS_GZIP) := .gz 55suffix-$(CONFIG_MODULE_COMPRESS_XZ) := .xz 56suffix-$(CONFIG_MODULE_COMPRESS_ZSTD) := .zst 57 58modules := $(patsubst $(extmod_prefix)%.o, $(dst)/%.ko$(suffix-y), $(modules)) 59install-$(CONFIG_MODULES) += $(modules) 60 61__modinst: $(install-y) 62 @: 63 64# 65# Installation 66# 67quiet_cmd_install = INSTALL $@ 68 cmd_install = cp $< $@ 69 70# Strip 71# 72# INSTALL_MOD_STRIP, if defined, will cause modules to be stripped after they 73# are installed. If INSTALL_MOD_STRIP is '1', then the default option 74# --strip-debug will be used. Otherwise, INSTALL_MOD_STRIP value will be used 75# as the options to the strip command. 76ifdef INSTALL_MOD_STRIP 77 78ifeq ($(INSTALL_MOD_STRIP),1) 79strip-option := --strip-debug 80else 81strip-option := $(INSTALL_MOD_STRIP) 82endif 83 84quiet_cmd_strip = STRIP $@ 85 cmd_strip = $(STRIP) $(strip-option) $@ 86 87else 88 89quiet_cmd_strip = 90 cmd_strip = : 91 92endif 93 94# 95# Signing 96# Don't stop modules_install even if we can't sign external modules. 97# 98ifeq ($(CONFIG_MODULE_SIG_ALL),y) 99ifeq ($(filter pkcs11:%, $(CONFIG_MODULE_SIG_KEY)),) 100sig-key := $(if $(wildcard $(CONFIG_MODULE_SIG_KEY)),,$(srctree)/)$(CONFIG_MODULE_SIG_KEY) 101else 102sig-key := $(CONFIG_MODULE_SIG_KEY) 103endif 104quiet_cmd_sign = SIGN $@ 105 cmd_sign = scripts/sign-file $(CONFIG_MODULE_SIG_HASH) "$(sig-key)" certs/signing_key.x509 $@ \ 106 $(if $(KBUILD_EXTMOD),|| true) 107else 108quiet_cmd_sign := 109 cmd_sign := : 110endif 111 112ifeq ($(modules_sign_only),) 113 114# Create necessary directories 115$(shell mkdir -p $(sort $(dir $(install-y)))) 116 117$(dst)/%.ko: $(extmod_prefix)%.ko FORCE 118 $(call cmd,install) 119 $(call cmd,strip) 120 $(call cmd,sign) 121 122ifdef CONFIG_MODULES 123__modinst: depmod 124 125PHONY += depmod 126depmod: $(install-y) 127 $(call cmd,depmod) 128 129quiet_cmd_depmod = DEPMOD $(MODLIB) 130 cmd_depmod = $(srctree)/scripts/depmod.sh $(KERNELRELEASE) 131endif 132 133else 134 135$(dst)/%.ko: FORCE 136 $(call cmd,sign) 137 138endif 139 140# 141# Compression 142# 143quiet_cmd_gzip = GZIP $@ 144 cmd_gzip = $(KGZIP) -n -f $< 145quiet_cmd_xz = XZ $@ 146 cmd_xz = $(XZ) --lzma2=dict=2MiB -f $< 147quiet_cmd_zstd = ZSTD $@ 148 cmd_zstd = $(ZSTD) -T0 --rm -f -q $< 149 150$(dst)/%.ko.gz: $(dst)/%.ko FORCE 151 $(call cmd,gzip) 152 153$(dst)/%.ko.xz: $(dst)/%.ko FORCE 154 $(call cmd,xz) 155 156$(dst)/%.ko.zst: $(dst)/%.ko FORCE 157 $(call cmd,zstd) 158 159PHONY += FORCE 160FORCE: 161 162.PHONY: $(PHONY) 163