1 # SPDX-License-Identifier: GPL-2.0 2 # ========================================================================== 3 # Installing modules 4 # ========================================================================== 5 6 PHONY := __modinst 7 __modinst: 8 9 include include/config/auto.conf 10 include $(srctree)/scripts/Kbuild.include 11 12 install-y := 13 14 ifeq ($(KBUILD_EXTMOD)$(sign-only),) 15 16 # remove the old directory and symlink 17 $(shell rm -fr $(MODLIB)/kernel $(MODLIB)/build) 18 19 install-$(CONFIG_MODULES) += $(addprefix $(MODLIB)/, build modules.order) 20 21 $(MODLIB)/build: FORCE 22 $(call cmd,symlink) 23 24 quiet_cmd_symlink = SYMLINK $@ 25 cmd_symlink = ln -s $(CURDIR) $@ 26 27 $(MODLIB)/modules.order: modules.order FORCE 28 $(call cmd,install_modorder) 29 30 quiet_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. 34 install-y += $(addprefix $(MODLIB)/, modules.builtin modules.builtin.modinfo) 35 36 $(addprefix $(MODLIB)/, modules.builtin modules.builtin.modinfo): $(MODLIB)/%: % FORCE 37 $(call cmd,install) 38 39 endif 40 41 modules := $(call read-file, $(MODORDER)) 42 43 ifeq ($(KBUILD_EXTMOD),) 44 dst := $(MODLIB)/kernel 45 else 46 INSTALL_MOD_DIR ?= updates 47 dst := $(MODLIB)/$(INSTALL_MOD_DIR) 48 endif 49 50 $(foreach x, % :, $(if $(findstring $x, $(dst)), \ 51 $(error module installation path cannot contain '$x'))) 52 53 suffix-y := 54 suffix-$(CONFIG_MODULE_COMPRESS_GZIP) := .gz 55 suffix-$(CONFIG_MODULE_COMPRESS_XZ) := .xz 56 suffix-$(CONFIG_MODULE_COMPRESS_ZSTD) := .zst 57 58 modules := $(patsubst $(extmod_prefix)%.o, $(dst)/%.ko$(suffix-y), $(modules)) 59 install-$(CONFIG_MODULES) += $(modules) 60 61 __modinst: $(install-y) 62 @: 63 64 # 65 # Installation 66 # 67 quiet_cmd_install = INSTALL $@ 68 cmd_install = cp $< $@ 69 70 # Strip 71 # 72 # INSTALL_MOD_STRIP, if defined, will cause modules to be stripped after they 73 # are installed. If INSTALL_MOD_STRIP is '1', then the default option 74 # --strip-debug will be used. Otherwise, INSTALL_MOD_STRIP value will be used 75 # as the options to the strip command. 76 ifdef INSTALL_MOD_STRIP 77 78 ifeq ($(INSTALL_MOD_STRIP),1) 79 strip-option := --strip-debug 80 else 81 strip-option := $(INSTALL_MOD_STRIP) 82 endif 83 84 quiet_cmd_strip = STRIP $@ 85 cmd_strip = $(STRIP) $(strip-option) $@ 86 87 else 88 89 quiet_cmd_strip = 90 cmd_strip = : 91 92 endif 93 94 # 95 # Signing 96 # Don't stop modules_install even if we can't sign external modules. 97 # 98 ifeq ($(filter pkcs11:%, $(CONFIG_MODULE_SIG_KEY)),) 99 sig-key := $(if $(wildcard $(CONFIG_MODULE_SIG_KEY)),,$(srctree)/)$(CONFIG_MODULE_SIG_KEY) 100 else 101 sig-key := $(CONFIG_MODULE_SIG_KEY) 102 endif 103 quiet_cmd_sign = SIGN $@ 104 cmd_sign = scripts/sign-file $(CONFIG_MODULE_SIG_HASH) "$(sig-key)" certs/signing_key.x509 $@ \ 105 $(if $(KBUILD_EXTMOD),|| true) 106 107 ifeq ($(sign-only),) 108 109 # During modules_install, modules are signed only when CONFIG_MODULE_SIG_ALL=y. 110 ifndef CONFIG_MODULE_SIG_ALL 111 quiet_cmd_sign := 112 cmd_sign := : 113 endif 114 115 # Create necessary directories 116 $(foreach dir, $(sort $(dir $(install-y))), $(shell mkdir -p $(dir))) 117 118 $(dst)/%.ko: $(extmod_prefix)%.ko FORCE 119 $(call cmd,install) 120 $(call cmd,strip) 121 $(call cmd,sign) 122 123 ifdef CONFIG_MODULES 124 __modinst: depmod 125 126 PHONY += depmod 127 depmod: $(install-y) 128 $(call cmd,depmod) 129 130 quiet_cmd_depmod = DEPMOD $(MODLIB) 131 cmd_depmod = $(srctree)/scripts/depmod.sh $(KERNELRELEASE) 132 endif 133 134 else 135 136 $(dst)/%.ko: FORCE 137 $(call cmd,sign) 138 139 endif 140 141 # 142 # Compression 143 # 144 quiet_cmd_gzip = GZIP $@ 145 cmd_gzip = $(KGZIP) -n -f $< 146 quiet_cmd_xz = XZ $@ 147 cmd_xz = $(XZ) --check=crc32 --lzma2=dict=1MiB -f $< 148 quiet_cmd_zstd = ZSTD $@ 149 cmd_zstd = $(ZSTD) -T0 --rm -f -q $< 150 151 $(dst)/%.ko.gz: $(dst)/%.ko FORCE 152 $(call cmd,gzip) 153 154 $(dst)/%.ko.xz: $(dst)/%.ko FORCE 155 $(call cmd,xz) 156 157 $(dst)/%.ko.zst: $(dst)/%.ko FORCE 158 $(call cmd,zstd) 159 160 PHONY += FORCE 161 FORCE: 162 163 .PHONY: $(PHONY)
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