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1# SPDX-License-Identifier: GPL-2.0
2# ==========================================================================
3# Installing modules
4# ==========================================================================
5
6PHONY := __modinst
7__modinst:
8
9include scripts/Kbuild.include
10
11modules := $(sort $(shell cat $(if $(KBUILD_EXTMOD),$(KBUILD_EXTMOD)/)modules.order))
12
13PHONY += $(modules)
14__modinst: $(modules)
15 @:
16
17# Don't stop modules_install if we can't sign external modules.
18quiet_cmd_modules_install = INSTALL $@
19 cmd_modules_install = \
20 mkdir -p $(2) ; \
21 cp $@ $(2) ; \
22 $(mod_strip_cmd) $(2)/$(notdir $@) ; \
23 $(mod_sign_cmd) $(2)/$(notdir $@) $(patsubst %,|| true,$(KBUILD_EXTMOD)) ; \
24 $(mod_compress_cmd) $(2)/$(notdir $@)
25
26# Modules built outside the kernel source tree go into extra by default
27INSTALL_MOD_DIR ?= extra
28ext-mod-dir = $(INSTALL_MOD_DIR)$(subst $(patsubst %/,%,$(KBUILD_EXTMOD)),,$(@D))
29
30modinst_dir = $(if $(KBUILD_EXTMOD),$(ext-mod-dir),kernel/$(@D))
31
32$(modules):
33 $(call cmd,modules_install,$(MODLIB)/$(modinst_dir))
34
35.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
12modules := $(call read-file, $(MODORDER))
13
14ifeq ($(KBUILD_EXTMOD),)
15dst := $(MODLIB)/kernel
16else
17INSTALL_MOD_DIR ?= extra
18dst := $(MODLIB)/$(INSTALL_MOD_DIR)
19endif
20
21$(foreach x, % :, $(if $(findstring $x, $(dst)), \
22 $(error module installation path cannot contain '$x')))
23
24suffix-y :=
25suffix-$(CONFIG_MODULE_COMPRESS_GZIP) := .gz
26suffix-$(CONFIG_MODULE_COMPRESS_XZ) := .xz
27suffix-$(CONFIG_MODULE_COMPRESS_ZSTD) := .zst
28
29modules := $(patsubst $(extmod_prefix)%.o, $(dst)/%.ko$(suffix-y), $(modules))
30
31__modinst: $(modules)
32 @:
33
34#
35# Installation
36#
37quiet_cmd_install = INSTALL $@
38 cmd_install = mkdir -p $(dir $@); cp $< $@
39
40# Strip
41#
42# INSTALL_MOD_STRIP, if defined, will cause modules to be stripped after they
43# are installed. If INSTALL_MOD_STRIP is '1', then the default option
44# --strip-debug will be used. Otherwise, INSTALL_MOD_STRIP value will be used
45# as the options to the strip command.
46ifdef INSTALL_MOD_STRIP
47
48ifeq ($(INSTALL_MOD_STRIP),1)
49strip-option := --strip-debug
50else
51strip-option := $(INSTALL_MOD_STRIP)
52endif
53
54quiet_cmd_strip = STRIP $@
55 cmd_strip = $(STRIP) $(strip-option) $@
56
57else
58
59quiet_cmd_strip =
60 cmd_strip = :
61
62endif
63
64#
65# Signing
66# Don't stop modules_install even if we can't sign external modules.
67#
68ifeq ($(CONFIG_MODULE_SIG_ALL),y)
69ifeq ($(filter pkcs11:%, $(CONFIG_MODULE_SIG_KEY)),)
70sig-key := $(if $(wildcard $(CONFIG_MODULE_SIG_KEY)),,$(srctree)/)$(CONFIG_MODULE_SIG_KEY)
71else
72sig-key := $(CONFIG_MODULE_SIG_KEY)
73endif
74quiet_cmd_sign = SIGN $@
75 cmd_sign = scripts/sign-file $(CONFIG_MODULE_SIG_HASH) "$(sig-key)" certs/signing_key.x509 $@ \
76 $(if $(KBUILD_EXTMOD),|| true)
77else
78quiet_cmd_sign :=
79 cmd_sign := :
80endif
81
82ifeq ($(modules_sign_only),)
83
84$(dst)/%.ko: $(extmod_prefix)%.ko FORCE
85 $(call cmd,install)
86 $(call cmd,strip)
87 $(call cmd,sign)
88
89else
90
91$(dst)/%.ko: FORCE
92 $(call cmd,sign)
93
94endif
95
96#
97# Compression
98#
99quiet_cmd_gzip = GZIP $@
100 cmd_gzip = $(KGZIP) -n -f $<
101quiet_cmd_xz = XZ $@
102 cmd_xz = $(XZ) --lzma2=dict=2MiB -f $<
103quiet_cmd_zstd = ZSTD $@
104 cmd_zstd = $(ZSTD) -T0 --rm -f -q $<
105
106$(dst)/%.ko.gz: $(dst)/%.ko FORCE
107 $(call cmd,gzip)
108
109$(dst)/%.ko.xz: $(dst)/%.ko FORCE
110 $(call cmd,xz)
111
112$(dst)/%.ko.zst: $(dst)/%.ko FORCE
113 $(call cmd,zstd)
114
115PHONY += FORCE
116FORCE:
117
118.PHONY: $(PHONY)