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1# SPDX-License-Identifier: GPL-2.0
2# ==========================================================================
3# Installing modules
4# ==========================================================================
5
6PHONY := __modinst
7__modinst:
8
9include $(objtree)/include/config/auto.conf
10include $(srctree)/scripts/Kbuild.include
11
12install-y :=
13
14ifeq ($(KBUILD_EXTMOD)$(sign-only),)
15
16# remove the old directory and symlink
17$(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,.ranges) even when CONFIG_MODULES is disabled.
34install-y += $(addprefix $(MODLIB)/, modules.builtin modules.builtin.modinfo)
35
36install-$(CONFIG_BUILTIN_MODULE_RANGES) += $(MODLIB)/modules.builtin.ranges
37
38$(addprefix $(MODLIB)/, modules.builtin modules.builtin.modinfo modules.builtin.ranges): $(MODLIB)/%: % FORCE
39 $(call cmd,install)
40
41endif
42
43modules := $(call read-file, modules.order)
44
45ifeq ($(KBUILD_EXTMOD),)
46dst := $(MODLIB)/kernel
47else
48INSTALL_MOD_DIR ?= updates
49dst := $(MODLIB)/$(INSTALL_MOD_DIR)
50endif
51
52$(foreach x, % :, $(if $(findstring $x, $(dst)), \
53 $(error module installation path cannot contain '$x')))
54
55suffix-y :=
56ifdef CONFIG_MODULE_COMPRESS_ALL
57suffix-$(CONFIG_MODULE_COMPRESS_GZIP) := .gz
58suffix-$(CONFIG_MODULE_COMPRESS_XZ) := .xz
59suffix-$(CONFIG_MODULE_COMPRESS_ZSTD) := .zst
60endif
61
62modules := $(patsubst %.o, $(dst)/%.ko$(suffix-y), $(modules))
63install-$(CONFIG_MODULES) += $(modules)
64
65__modinst: $(install-y)
66 @:
67
68#
69# Installation
70#
71quiet_cmd_install = INSTALL $@
72 cmd_install = cp $< $@
73
74# Strip
75#
76# INSTALL_MOD_STRIP, if defined, will cause modules to be stripped after they
77# are installed. If INSTALL_MOD_STRIP is '1', then the default option
78# --strip-debug will be used. Otherwise, INSTALL_MOD_STRIP value will be used
79# as the options to the strip command.
80ifdef INSTALL_MOD_STRIP
81
82ifeq ($(INSTALL_MOD_STRIP),1)
83strip-option := --strip-debug
84else
85strip-option := $(INSTALL_MOD_STRIP)
86endif
87
88quiet_cmd_strip = STRIP $@
89 cmd_strip = $(STRIP) $(strip-option) $@
90
91else
92
93quiet_cmd_strip =
94 cmd_strip = :
95
96endif
97
98#
99# Signing
100# Don't stop modules_install even if we can't sign external modules.
101#
102ifeq ($(filter pkcs11:%, $(CONFIG_MODULE_SIG_KEY)),)
103sig-key := $(if $(wildcard $(CONFIG_MODULE_SIG_KEY)),,$(srctree)/)$(CONFIG_MODULE_SIG_KEY)
104else
105sig-key := $(CONFIG_MODULE_SIG_KEY)
106endif
107quiet_cmd_sign = SIGN $@
108 cmd_sign = $(objtree)/scripts/sign-file $(CONFIG_MODULE_SIG_HASH) "$(sig-key)" $(objtree)/certs/signing_key.x509 $@ \
109 $(if $(KBUILD_EXTMOD),|| true)
110
111ifeq ($(sign-only),)
112
113# During modules_install, modules are signed only when CONFIG_MODULE_SIG_ALL=y.
114ifndef CONFIG_MODULE_SIG_ALL
115quiet_cmd_sign :=
116 cmd_sign := :
117endif
118
119# Create necessary directories
120$(foreach dir, $(sort $(dir $(install-y))), $(shell mkdir -p $(dir)))
121
122$(dst)/%.ko: %.ko FORCE
123 $(call cmd,install)
124 $(call cmd,strip)
125 $(call cmd,sign)
126
127ifdef CONFIG_MODULES
128__modinst: depmod
129
130PHONY += depmod
131depmod: $(install-y)
132 $(call cmd,depmod)
133
134quiet_cmd_depmod = DEPMOD $(MODLIB)
135 cmd_depmod = $(srctree)/scripts/depmod.sh $(KERNELRELEASE)
136endif
137
138else
139
140$(dst)/%.ko: FORCE
141 $(call cmd,sign)
142
143endif
144
145#
146# Compression
147#
148quiet_cmd_gzip = GZIP $@
149 cmd_gzip = $(KGZIP) -n -f $<
150quiet_cmd_xz = XZ $@
151 cmd_xz = $(XZ) --check=crc32 --lzma2=dict=1MiB -f $<
152quiet_cmd_zstd = ZSTD $@
153 cmd_zstd = $(ZSTD) --rm -f -q $<
154
155$(dst)/%.ko.gz: $(dst)/%.ko FORCE
156 $(call cmd,gzip)
157
158$(dst)/%.ko.xz: $(dst)/%.ko FORCE
159 $(call cmd,xz)
160
161$(dst)/%.ko.zst: $(dst)/%.ko FORCE
162 $(call cmd,zstd)
163
164PHONY += FORCE
165FORCE:
166
167.PHONY: $(PHONY)
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)$(sign-only),)
15
16# remove the old directory and symlink
17$(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) $@
86
87else
88
89quiet_cmd_strip =
90 cmd_strip = :
91
92endif
93
94#
95# Signing
96# Don't stop modules_install even if we can't sign external modules.
97#
98ifeq ($(filter pkcs11:%, $(CONFIG_MODULE_SIG_KEY)),)
99sig-key := $(if $(wildcard $(CONFIG_MODULE_SIG_KEY)),,$(srctree)/)$(CONFIG_MODULE_SIG_KEY)
100else
101sig-key := $(CONFIG_MODULE_SIG_KEY)
102endif
103quiet_cmd_sign = SIGN $@
104 cmd_sign = scripts/sign-file $(CONFIG_MODULE_SIG_HASH) "$(sig-key)" certs/signing_key.x509 $@ \
105 $(if $(KBUILD_EXTMOD),|| true)
106
107ifeq ($(sign-only),)
108
109# During modules_install, modules are signed only when CONFIG_MODULE_SIG_ALL=y.
110ifndef CONFIG_MODULE_SIG_ALL
111quiet_cmd_sign :=
112 cmd_sign := :
113endif
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
123ifdef CONFIG_MODULES
124__modinst: depmod
125
126PHONY += depmod
127depmod: $(install-y)
128 $(call cmd,depmod)
129
130quiet_cmd_depmod = DEPMOD $(MODLIB)
131 cmd_depmod = $(srctree)/scripts/depmod.sh $(KERNELRELEASE)
132endif
133
134else
135
136$(dst)/%.ko: FORCE
137 $(call cmd,sign)
138
139endif
140
141#
142# Compression
143#
144quiet_cmd_gzip = GZIP $@
145 cmd_gzip = $(KGZIP) -n -f $<
146quiet_cmd_xz = XZ $@
147 cmd_xz = $(XZ) --check=crc32 --lzma2=dict=1MiB -f $<
148quiet_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
160PHONY += FORCE
161FORCE:
162
163.PHONY: $(PHONY)