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 := $(sort $(shell cat $(MODORDER))) 13 14ifeq ($(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)%, $(dst)/%$(suffix-y), $(modules)) 30ifneq ($(KBUILD_EXTMOD),) 31extmod_suffix := $(shell echo "${KBUILD_EXTMOD}" | md5sum | cut -d " " -f 1) 32modules += $(dst)/modules.order.$(extmod_suffix) 33endif 34 35__modinst: $(modules) 36 @: 37 38# 39# Installation 40# 41quiet_cmd_install = INSTALL $@ 42 cmd_install = mkdir -p $(dir $@); cp $< $@ 43 44# Strip 45# 46# INSTALL_MOD_STRIP, if defined, will cause modules to be stripped after they 47# are installed. If INSTALL_MOD_STRIP is '1', then the default option 48# --strip-debug will be used. Otherwise, INSTALL_MOD_STRIP value will be used 49# as the options to the strip command. 50ifdef INSTALL_MOD_STRIP 51 52ifeq ($(INSTALL_MOD_STRIP),1) 53strip-option := --strip-debug 54else 55strip-option := $(INSTALL_MOD_STRIP) 56endif 57 58quiet_cmd_strip = STRIP $@ 59 cmd_strip = $(STRIP) $(strip-option) $@ 60 61else 62 63quiet_cmd_strip = 64 cmd_strip = : 65 66endif 67 68# 69# Signing 70# Don't stop modules_install even if we can't sign external modules. 71# 72ifeq ($(CONFIG_MODULE_SIG_ALL),y) 73ifeq ($(filter pkcs11:%, $(CONFIG_MODULE_SIG_KEY)),) 74sig-key := $(if $(wildcard $(CONFIG_MODULE_SIG_KEY)),,$(srctree)/)$(CONFIG_MODULE_SIG_KEY) 75else 76sig-key := $(CONFIG_MODULE_SIG_KEY) 77endif 78quiet_cmd_sign = SIGN $@ 79 cmd_sign = scripts/sign-file $(CONFIG_MODULE_SIG_HASH) "$(sig-key)" certs/signing_key.x509 $@ \ 80 $(if $(KBUILD_EXTMOD),|| true) 81else 82quiet_cmd_sign := 83 cmd_sign := : 84endif 85 86ifeq ($(modules_sign_only),) 87 88$(dst)/%.ko: $(extmod_prefix)%.ko FORCE 89 $(call cmd,install) 90 $(call cmd,strip) 91 $(call cmd,sign) 92 93ifneq ($(KBUILD_EXTMOD),) 94$(dst)/modules.order.$(extmod_suffix): $(MODORDER) FORCE 95 $(call cmd,install) 96 @sed -i "s:^$(KBUILD_EXTMOD):$(INSTALL_MOD_DIR):g" $@ 97endif 98 99else 100 101$(dst)/%.ko: FORCE 102 $(call cmd,sign) 103 104endif 105 106# 107# Compression 108# 109quiet_cmd_gzip = GZIP $@ 110 cmd_gzip = $(KGZIP) -n -f $< 111quiet_cmd_xz = XZ $@ 112 cmd_xz = $(XZ) --lzma2=dict=2MiB -f $< 113quiet_cmd_zstd = ZSTD $@ 114 cmd_zstd = $(ZSTD) -T0 --rm -f -q $< 115 116$(dst)/%.ko.gz: $(dst)/%.ko FORCE 117 $(call cmd,gzip) 118 119$(dst)/%.ko.xz: $(dst)/%.ko FORCE 120 $(call cmd,xz) 121 122$(dst)/%.ko.zst: $(dst)/%.ko FORCE 123 $(call cmd,zstd) 124 125PHONY += FORCE 126FORCE: 127 128.PHONY: $(PHONY) 129