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129ab0d2d9
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 $(CONFIG_X))
These are not only ugly, but also fragile.
[1] and [2] do not work if the value contains spaces, like
CONFIG_X=" foo bar "
[3] does not work correctly if the value contains double-quotes like
CONFIG_X="foo\"bar"
[4] seems to work better, but has a cost of forking a process.
Anyway, quoted strings were always PITA for our Makefiles.
This commit changes Kconfig to stop quoting in include/config/auto.conf.
These are the string type symbols referenced in Makefiles or scripts:
ACPI_CUSTOM_DSDT_FILE
ARC_BUILTIN_DTB_NAME
ARC_TUNE_MCPU
BUILTIN_DTB_SOURCE
CC_IMPLICIT_FALLTHROUGH
CC_VERSION_TEXT
CFG80211_EXTRA_REGDB_KEYDIR
EXTRA_FIRMWARE
EXTRA_FIRMWARE_DIR
EXTRA_TARGETS
H8300_BUILTIN_DTB
INITRAMFS_SOURCE
LOCALVERSION
MODULE_SIG_HASH
MODULE_SIG_KEY
NDS32_BUILTIN_DTB
NIOS2_DTB_SOURCE
OPENRISC_BUILTIN_DTB
SOC_CANAAN_K210_DTB_SOURCE
SYSTEM_BLACKLIST_HASH_LIST
SYSTEM_REVOCATION_KEYS
SYSTEM_TRUSTED_KEYS
TARGET_CPU
UNUSED_KSYMS_WHITELIST
XILINX_MICROBLAZE0_FAMILY
XILINX_MICROBLAZE0_HW_VER
XTENSA_VARIANT_NAME
I checked them one by one, and fixed up the code where necessary.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
89 lines
3.0 KiB
Makefile
89 lines
3.0 KiB
Makefile
# SPDX-License-Identifier: GPL-2.0
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#
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# Makefile for the linux kernel signature checking certificates.
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#
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obj-$(CONFIG_SYSTEM_TRUSTED_KEYRING) += system_keyring.o system_certificates.o common.o
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obj-$(CONFIG_SYSTEM_BLACKLIST_KEYRING) += blacklist.o common.o
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obj-$(CONFIG_SYSTEM_REVOCATION_LIST) += revocation_certificates.o
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ifneq ($(CONFIG_SYSTEM_BLACKLIST_HASH_LIST),)
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obj-$(CONFIG_SYSTEM_BLACKLIST_KEYRING) += blacklist_hashes.o
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else
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obj-$(CONFIG_SYSTEM_BLACKLIST_KEYRING) += blacklist_nohashes.o
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endif
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quiet_cmd_extract_certs = CERT $@
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cmd_extract_certs = scripts/extract-cert $(2) $@
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$(obj)/system_certificates.o: $(obj)/x509_certificate_list
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$(obj)/x509_certificate_list: $(CONFIG_SYSTEM_TRUSTED_KEYS) scripts/extract-cert FORCE
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$(call if_changed,extract_certs,$(if $(CONFIG_SYSTEM_TRUSTED_KEYS),$<,""))
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targets += x509_certificate_list
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ifeq ($(CONFIG_MODULE_SIG),y)
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SIGN_KEY = y
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endif
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ifeq ($(CONFIG_IMA_APPRAISE_MODSIG),y)
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ifeq ($(CONFIG_MODULES),y)
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SIGN_KEY = y
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endif
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endif
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ifdef SIGN_KEY
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###############################################################################
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#
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# If module signing is requested, say by allyesconfig, but a key has not been
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# supplied, then one will need to be generated to make sure the build does not
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# fail and that the kernel may be used afterwards.
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#
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###############################################################################
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# We do it this way rather than having a boolean option for enabling an
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# external private key, because 'make randconfig' might enable such a
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# boolean option and we unfortunately can't make it depend on !RANDCONFIG.
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ifeq ($(CONFIG_MODULE_SIG_KEY),certs/signing_key.pem)
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keytype-$(CONFIG_MODULE_SIG_KEY_TYPE_ECDSA) := -newkey ec -pkeyopt ec_paramgen_curve:secp384r1
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quiet_cmd_gen_key = GENKEY $@
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cmd_gen_key = openssl req -new -nodes -utf8 -$(CONFIG_MODULE_SIG_HASH) -days 36500 \
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-batch -x509 -config $< \
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-outform PEM -out $@ -keyout $@ $(keytype-y) 2>&1
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$(obj)/signing_key.pem: $(obj)/x509.genkey FORCE
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$(call if_changed,gen_key)
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targets += signing_key.pem
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quiet_cmd_copy_x509_config = COPY $@
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cmd_copy_x509_config = cat $(srctree)/$(src)/default_x509.genkey > $@
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# You can provide your own config file. If not present, copy the default one.
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$(obj)/x509.genkey:
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$(call cmd,copy_x509_config)
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endif # CONFIG_MODULE_SIG_KEY
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# If CONFIG_MODULE_SIG_KEY isn't a PKCS#11 URI, depend on it
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ifneq ($(filter-out pkcs11:%, %(CONFIG_MODULE_SIG_KEY)),)
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X509_DEP := $(CONFIG_MODULE_SIG_KEY)
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endif
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$(obj)/system_certificates.o: $(obj)/signing_key.x509
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$(obj)/signing_key.x509: $(X509_DEP) scripts/extract-cert FORCE
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$(call if_changed,extract_certs,$(if $(X509_DEP),$<,$(CONFIG_MODULE_SIG_KEY)))
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endif # CONFIG_MODULE_SIG
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targets += signing_key.x509
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$(obj)/revocation_certificates.o: $(obj)/x509_revocation_list
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$(obj)/x509_revocation_list: $(CONFIG_SYSTEM_REVOCATION_KEYS) scripts/extract-cert FORCE
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$(call if_changed,extract_certs,$(if $(CONFIG_SYSTEM_REVOCATION_KEYS),$<,""))
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targets += x509_revocation_list
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