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TOMOYO Linux Cross Reference
Linux/scripts/Makefile.modinst

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  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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