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552c5013f2
Running "make modules_install" may fail with
make[2]: execvp: /bin/sh: Argument list too long
if many modules are built and INSTALL_MOD_PATH is long. This is because
scripts/Makefile.modinst creates all directories with one mkdir command.
Use $(foreach ...) instead to prevent an excessive argument list.
Fixes: 2dfec887c0 ("kbuild: reduce the number of mkdir calls during modules_install")
Signed-off-by: Michal Kubecek <mkubecek@suse.cz>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
164 lines
3.7 KiB
Makefile
164 lines
3.7 KiB
Makefile
# SPDX-License-Identifier: GPL-2.0
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# ==========================================================================
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# Installing modules
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# ==========================================================================
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PHONY := __modinst
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__modinst:
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include include/config/auto.conf
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include $(srctree)/scripts/Kbuild.include
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install-y :=
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ifeq ($(KBUILD_EXTMOD)$(sign-only),)
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# remove the old directory and symlink
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$(shell rm -fr $(MODLIB)/kernel $(MODLIB)/build)
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install-$(CONFIG_MODULES) += $(addprefix $(MODLIB)/, build modules.order)
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$(MODLIB)/build: FORCE
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$(call cmd,symlink)
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quiet_cmd_symlink = SYMLINK $@
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cmd_symlink = ln -s $(CURDIR) $@
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$(MODLIB)/modules.order: modules.order FORCE
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$(call cmd,install_modorder)
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quiet_cmd_install_modorder = INSTALL $@
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cmd_install_modorder = sed 's:^\(.*\)\.o$$:kernel/\1.ko:' $< > $@
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# Install modules.builtin(.modinfo) even when CONFIG_MODULES is disabled.
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install-y += $(addprefix $(MODLIB)/, modules.builtin modules.builtin.modinfo)
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$(addprefix $(MODLIB)/, modules.builtin modules.builtin.modinfo): $(MODLIB)/%: % FORCE
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$(call cmd,install)
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endif
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modules := $(call read-file, $(MODORDER))
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ifeq ($(KBUILD_EXTMOD),)
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dst := $(MODLIB)/kernel
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else
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INSTALL_MOD_DIR ?= updates
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dst := $(MODLIB)/$(INSTALL_MOD_DIR)
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endif
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$(foreach x, % :, $(if $(findstring $x, $(dst)), \
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$(error module installation path cannot contain '$x')))
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suffix-y :=
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suffix-$(CONFIG_MODULE_COMPRESS_GZIP) := .gz
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suffix-$(CONFIG_MODULE_COMPRESS_XZ) := .xz
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suffix-$(CONFIG_MODULE_COMPRESS_ZSTD) := .zst
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modules := $(patsubst $(extmod_prefix)%.o, $(dst)/%.ko$(suffix-y), $(modules))
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install-$(CONFIG_MODULES) += $(modules)
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__modinst: $(install-y)
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@:
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#
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# Installation
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#
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quiet_cmd_install = INSTALL $@
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cmd_install = cp $< $@
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# Strip
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#
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# INSTALL_MOD_STRIP, if defined, will cause modules to be stripped after they
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# are installed. If INSTALL_MOD_STRIP is '1', then the default option
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# --strip-debug will be used. Otherwise, INSTALL_MOD_STRIP value will be used
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# as the options to the strip command.
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ifdef INSTALL_MOD_STRIP
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ifeq ($(INSTALL_MOD_STRIP),1)
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strip-option := --strip-debug
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else
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strip-option := $(INSTALL_MOD_STRIP)
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endif
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quiet_cmd_strip = STRIP $@
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cmd_strip = $(STRIP) $(strip-option) $@
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else
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quiet_cmd_strip =
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cmd_strip = :
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endif
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#
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# Signing
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# Don't stop modules_install even if we can't sign external modules.
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#
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ifeq ($(filter pkcs11:%, $(CONFIG_MODULE_SIG_KEY)),)
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sig-key := $(if $(wildcard $(CONFIG_MODULE_SIG_KEY)),,$(srctree)/)$(CONFIG_MODULE_SIG_KEY)
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else
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sig-key := $(CONFIG_MODULE_SIG_KEY)
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endif
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quiet_cmd_sign = SIGN $@
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cmd_sign = scripts/sign-file $(CONFIG_MODULE_SIG_HASH) "$(sig-key)" certs/signing_key.x509 $@ \
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$(if $(KBUILD_EXTMOD),|| true)
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ifeq ($(sign-only),)
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# During modules_install, modules are signed only when CONFIG_MODULE_SIG_ALL=y.
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ifndef CONFIG_MODULE_SIG_ALL
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quiet_cmd_sign :=
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cmd_sign := :
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endif
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# Create necessary directories
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$(foreach dir, $(sort $(dir $(install-y))), $(shell mkdir -p $(dir)))
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$(dst)/%.ko: $(extmod_prefix)%.ko FORCE
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$(call cmd,install)
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$(call cmd,strip)
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$(call cmd,sign)
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ifdef CONFIG_MODULES
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__modinst: depmod
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PHONY += depmod
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depmod: $(install-y)
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$(call cmd,depmod)
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quiet_cmd_depmod = DEPMOD $(MODLIB)
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cmd_depmod = $(srctree)/scripts/depmod.sh $(KERNELRELEASE)
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endif
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else
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$(dst)/%.ko: FORCE
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$(call cmd,sign)
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endif
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#
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# Compression
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#
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quiet_cmd_gzip = GZIP $@
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cmd_gzip = $(KGZIP) -n -f $<
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quiet_cmd_xz = XZ $@
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cmd_xz = $(XZ) --lzma2=dict=2MiB -f $<
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quiet_cmd_zstd = ZSTD $@
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cmd_zstd = $(ZSTD) -T0 --rm -f -q $<
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$(dst)/%.ko.gz: $(dst)/%.ko FORCE
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$(call cmd,gzip)
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$(dst)/%.ko.xz: $(dst)/%.ko FORCE
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$(call cmd,xz)
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$(dst)/%.ko.zst: $(dst)/%.ko FORCE
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$(call cmd,zstd)
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PHONY += FORCE
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FORCE:
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.PHONY: $(PHONY)
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