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 ?= updates 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 89__modinst: depmod 90 91PHONY += depmod 92depmod: $(modules) 93 $(call cmd,depmod) 94 95quiet_cmd_depmod = DEPMOD $(MODLIB) 96 cmd_depmod = $(srctree)/scripts/depmod.sh $(KERNELRELEASE) 97 98else 99 100$(dst)/%.ko: FORCE 101 $(call cmd,sign) 102 103endif 104 105# 106# Compression 107# 108quiet_cmd_gzip = GZIP $@ 109 cmd_gzip = $(KGZIP) -n -f $< 110quiet_cmd_xz = XZ $@ 111 cmd_xz = $(XZ) --lzma2=dict=2MiB -f $< 112quiet_cmd_zstd = ZSTD $@ 113 cmd_zstd = $(ZSTD) -T0 --rm -f -q $< 114 115$(dst)/%.ko.gz: $(dst)/%.ko FORCE 116 $(call cmd,gzip) 117 118$(dst)/%.ko.xz: $(dst)/%.ko FORCE 119 $(call cmd,xz) 120 121$(dst)/%.ko.zst: $(dst)/%.ko FORCE 122 $(call cmd,zstd) 123 124PHONY += FORCE 125FORCE: 126 127.PHONY: $(PHONY) 128