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linux-next/scripts/Makefile.modinst
Masahiro Yamada 129ab0d2d9 kbuild: do not quote string values in include/config/auto.conf
The previous commit fixed up all shell scripts to not include
include/config/auto.conf.

Now that include/config/auto.conf is only included by Makefiles,
we can change it into a more Make-friendly form.

Previously, Kconfig output string values enclosed with double-quotes
(both in the .config and include/config/auto.conf):

    CONFIG_X="foo bar"

Unlike shell, Make handles double-quotes (and single-quotes as well)
verbatim. We must rip them off when used.

There are some patterns:

  [1] $(patsubst "%",%,$(CONFIG_X))
  [2] $(CONFIG_X:"%"=%)
  [3] $(subst ",,$(CONFIG_X))
  [4] $(shell echo $(CONFIG_X))

These are not only ugly, but also fragile.

[1] and [2] do not work if the value contains spaces, like
   CONFIG_X=" foo bar "

[3] does not work correctly if the value contains double-quotes like
   CONFIG_X="foo\"bar"

[4] seems to work better, but has a cost of forking a process.

Anyway, quoted strings were always PITA for our Makefiles.

This commit changes Kconfig to stop quoting in include/config/auto.conf.

These are the string type symbols referenced in Makefiles or scripts:

    ACPI_CUSTOM_DSDT_FILE
    ARC_BUILTIN_DTB_NAME
    ARC_TUNE_MCPU
    BUILTIN_DTB_SOURCE
    CC_IMPLICIT_FALLTHROUGH
    CC_VERSION_TEXT
    CFG80211_EXTRA_REGDB_KEYDIR
    EXTRA_FIRMWARE
    EXTRA_FIRMWARE_DIR
    EXTRA_TARGETS
    H8300_BUILTIN_DTB
    INITRAMFS_SOURCE
    LOCALVERSION
    MODULE_SIG_HASH
    MODULE_SIG_KEY
    NDS32_BUILTIN_DTB
    NIOS2_DTB_SOURCE
    OPENRISC_BUILTIN_DTB
    SOC_CANAAN_K210_DTB_SOURCE
    SYSTEM_BLACKLIST_HASH_LIST
    SYSTEM_REVOCATION_KEYS
    SYSTEM_TRUSTED_KEYS
    TARGET_CPU
    UNUSED_KSYMS_WHITELIST
    XILINX_MICROBLAZE0_FAMILY
    XILINX_MICROBLAZE0_HW_VER
    XTENSA_VARIANT_NAME

I checked them one by one, and fixed up the code where necessary.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2022-01-08 18:03:57 +09:00

115 lines
2.4 KiB
Makefile

# SPDX-License-Identifier: GPL-2.0
# ==========================================================================
# Installing modules
# ==========================================================================
PHONY := __modinst
__modinst:
include include/config/auto.conf
include $(srctree)/scripts/Kbuild.include
modules := $(sort $(shell cat $(MODORDER)))
ifeq ($(KBUILD_EXTMOD),)
dst := $(MODLIB)/kernel
else
INSTALL_MOD_DIR ?= extra
dst := $(MODLIB)/$(INSTALL_MOD_DIR)
endif
suffix-y :=
suffix-$(CONFIG_MODULE_COMPRESS_GZIP) := .gz
suffix-$(CONFIG_MODULE_COMPRESS_XZ) := .xz
suffix-$(CONFIG_MODULE_COMPRESS_ZSTD) := .zst
modules := $(patsubst $(extmod_prefix)%, $(dst)/%$(suffix-y), $(modules))
__modinst: $(modules)
@:
quiet_cmd_none =
cmd_none = :
#
# Installation
#
quiet_cmd_install = INSTALL $@
cmd_install = mkdir -p $(dir $@); cp $< $@
# Strip
#
# INSTALL_MOD_STRIP, if defined, will cause modules to be stripped after they
# are installed. If INSTALL_MOD_STRIP is '1', then the default option
# --strip-debug will be used. Otherwise, INSTALL_MOD_STRIP value will be used
# as the options to the strip command.
ifdef INSTALL_MOD_STRIP
ifeq ($(INSTALL_MOD_STRIP),1)
strip-option := --strip-debug
else
strip-option := $(INSTALL_MOD_STRIP)
endif
quiet_cmd_strip = STRIP $@
cmd_strip = $(STRIP) $(strip-option) $@
else
quiet_cmd_strip =
cmd_strip = :
endif
#
# Signing
# Don't stop modules_install even if we can't sign external modules.
#
ifeq ($(CONFIG_MODULE_SIG_ALL),y)
sig-key := $(if $(wildcard $(CONFIG_MODULE_SIG_KEY)),,$(srctree)/)$(CONFIG_MODULE_SIG_KEY)
quiet_cmd_sign = SIGN $@
cmd_sign = scripts/sign-file $(CONFIG_MODULE_SIG_HASH) $(sig-key) certs/signing_key.x509 $@ \
$(if $(KBUILD_EXTMOD),|| true)
else
quiet_cmd_sign :=
cmd_sign := :
endif
ifeq ($(modules_sign_only),)
$(dst)/%.ko: $(extmod_prefix)%.ko FORCE
$(call cmd,install)
$(call cmd,strip)
$(call cmd,sign)
else
$(dst)/%.ko: FORCE
$(call cmd,sign)
endif
#
# Compression
#
quiet_cmd_gzip = GZIP $@
cmd_gzip = $(KGZIP) -n -f $<
quiet_cmd_xz = XZ $@
cmd_xz = $(XZ) --lzma2=dict=2MiB -f $<
quiet_cmd_zstd = ZSTD $@
cmd_zstd = $(ZSTD) -T0 --rm -f -q $<
$(dst)/%.ko.gz: $(dst)/%.ko FORCE
$(call cmd,gzip)
$(dst)/%.ko.xz: $(dst)/%.ko FORCE
$(call cmd,xz)
$(dst)/%.ko.zst: $(dst)/%.ko FORCE
$(call cmd,zstd)
PHONY += FORCE
FORCE:
.PHONY: $(PHONY)