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kbuild: do not quote string values in include/config/auto.conf

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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>
This commit is contained in:
Masahiro Yamada 2021-12-14 11:53:53 +09:00
parent 7d153696e5
commit 129ab0d2d9
23 changed files with 40 additions and 66 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
Makefile
View File

@ -1720,9 +1720,9 @@ PHONY += prepare
# now expand this into a simple variable to reduce the cost of shell evaluations
prepare: CC_VERSION_TEXT := $(CC_VERSION_TEXT)
prepare:
@if [ "$(CC_VERSION_TEXT)" != $(CONFIG_CC_VERSION_TEXT) ]; then \
@if [ "$(CC_VERSION_TEXT)" != "$(CONFIG_CC_VERSION_TEXT)" ]; then \
echo >&2 "warning: the compiler differs from the one used to build the kernel"; \
echo >&2 " The kernel was built by: "$(CONFIG_CC_VERSION_TEXT); \
echo >&2 " The kernel was built by: $(CONFIG_CC_VERSION_TEXT)"; \
echo >&2 " You are using: $(CC_VERSION_TEXT)"; \
fi

4
arch/arc/Makefile
View File

@ -14,10 +14,10 @@ cflags-y += -fno-common -pipe -fno-builtin -mmedium-calls -D__linux__
tune-mcpu-def-$(CONFIG_ISA_ARCOMPACT) := -mcpu=arc700
tune-mcpu-def-$(CONFIG_ISA_ARCV2) := -mcpu=hs38
ifeq ($(CONFIG_ARC_TUNE_MCPU),"")
ifeq ($(CONFIG_ARC_TUNE_MCPU),)
cflags-y += $(tune-mcpu-def-y)
else
tune-mcpu := $(shell echo $(CONFIG_ARC_TUNE_MCPU))
tune-mcpu := $(CONFIG_ARC_TUNE_MCPU)
ifneq ($(call cc-option,$(tune-mcpu)),)
cflags-y += $(tune-mcpu)
else

4
arch/arc/boot/dts/Makefile
View File

@ -2,8 +2,8 @@
# Built-in dtb
builtindtb-y := nsim_700
ifneq ($(CONFIG_ARC_BUILTIN_DTB_NAME),"")
builtindtb-y := $(patsubst "%",%,$(CONFIG_ARC_BUILTIN_DTB_NAME))
ifneq ($(CONFIG_ARC_BUILTIN_DTB_NAME),)
builtindtb-y := $(CONFIG_ARC_BUILTIN_DTB_NAME)
endif
obj-y += $(builtindtb-y).dtb.o

6
arch/h8300/boot/dts/Makefile
View File

@ -1,9 +1,5 @@
# SPDX-License-Identifier: GPL-2.0
ifneq '$(CONFIG_H8300_BUILTIN_DTB)' '""'
BUILTIN_DTB := $(patsubst "%",%,$(CONFIG_H8300_BUILTIN_DTB)).dtb.o
endif
obj-y += $(BUILTIN_DTB)
obj-y += $(addsuffix .dtb.o, $(CONFIG_H8300_BUILTIN_DTB))
dtb-$(CONFIG_H8300H_SIM) := h8300h_sim.dtb
dtb-$(CONFIG_H8S_SIM) := h8s_sim.dtb

2
arch/microblaze/Makefile
View File

@ -5,7 +5,7 @@ UTS_SYSNAME = -DUTS_SYSNAME=\"Linux\"
# What CPU version are we building for, and crack it open
# as major.minor.rev
CPU_VER := $(shell echo $(CONFIG_XILINX_MICROBLAZE0_HW_VER))
CPU_VER := $(CONFIG_XILINX_MICROBLAZE0_HW_VER)
CPU_MAJOR := $(shell echo $(CPU_VER) | cut -d '.' -f 1)
CPU_MINOR := $(shell echo $(CPU_VER) | cut -d '.' -f 2)
CPU_REV := $(shell echo $(CPU_VER) | cut -d '.' -f 3)

7
arch/nds32/boot/dts/Makefile
View File

@ -1,7 +1,2 @@
# SPDX-License-Identifier: GPL-2.0-only
ifneq '$(CONFIG_NDS32_BUILTIN_DTB)' '""'
BUILTIN_DTB := $(patsubst "%",%,$(CONFIG_NDS32_BUILTIN_DTB)).dtb.o
else
BUILTIN_DTB :=
endif
obj-$(CONFIG_OF) += $(BUILTIN_DTB)
obj-$(CONFIG_OF) += $(addsuffix .dtb.o, $(CONFIG_NDS32_BUILTIN_DTB))

2
arch/nios2/boot/dts/Makefile
View File

@ -1,6 +1,6 @@
# SPDX-License-Identifier: GPL-2.0
obj-y := $(patsubst "%.dts",%.dtb.o,$(CONFIG_NIOS2_DTB_SOURCE))
obj-y := $(patsubst %.dts,%.dtb.o,$(CONFIG_NIOS2_DTB_SOURCE))
dtstree := $(srctree)/$(src)
dtb-$(CONFIG_OF_ALL_DTBS) := $(patsubst $(dtstree)/%.dts,%.dtb, $(wildcard $(dtstree)/*.dts))

7
arch/openrisc/boot/dts/Makefile
View File

@ -1,9 +1,4 @@
# SPDX-License-Identifier: GPL-2.0
ifneq '$(CONFIG_OPENRISC_BUILTIN_DTB)' '""'
BUILTIN_DTB := $(patsubst "%",%,$(CONFIG_OPENRISC_BUILTIN_DTB)).dtb.o
else
BUILTIN_DTB :=
endif
obj-y += $(BUILTIN_DTB)
obj-y += $(addsuffix .dtb.o, $(CONFIG_OPENRISC_BUILTIN_DTB))
#DTC_FLAGS ?= -p 1024

2
arch/powerpc/boot/Makefile
View File

@ -365,7 +365,7 @@ image-$(CONFIG_PPC_PMAC) += zImage.coff zImage.miboot
endif
# Allow extra targets to be added to the defconfig
image-y += $(subst ",,$(CONFIG_EXTRA_TARGETS))
image-y += $(CONFIG_EXTRA_TARGETS)
initrd- := $(patsubst zImage%, zImage.initrd%, $(image-))
initrd-y := $(patsubst zImage%, zImage.initrd%, \

4
arch/riscv/boot/dts/canaan/Makefile
View File

@ -1,5 +1,3 @@
# SPDX-License-Identifier: GPL-2.0
ifneq ($(CONFIG_SOC_CANAAN_K210_DTB_SOURCE),"")
dtb-y += $(strip $(shell echo $(CONFIG_SOC_CANAAN_K210_DTB_SOURCE))).dtb
dtb-$(CONFIG_SOC_CANAAN_K210_DTB_BUILTIN) += $(addsuffix .dtb, $(CONFIG_SOC_CANAAN_K210_DTB_SOURCE))
obj-$(CONFIG_SOC_CANAAN_K210_DTB_BUILTIN) += $(addsuffix .o, $(dtb-y))
endif

4
arch/sh/boot/dts/Makefile
View File

@ -1,4 +1,2 @@
# SPDX-License-Identifier: GPL-2.0-only
ifneq ($(CONFIG_BUILTIN_DTB_SOURCE),"")
obj-$(CONFIG_USE_BUILTIN_DTB) += $(patsubst "%",%,$(CONFIG_BUILTIN_DTB_SOURCE)).dtb.o
endif
obj-$(CONFIG_USE_BUILTIN_DTB) += $(addsuffix .dtb.o, $(CONFIG_BUILTIN_DTB_SOURCE))

2
arch/xtensa/Makefile
View File

@ -12,7 +12,7 @@
# Core configuration.
# (Use VAR=<xtensa_config> to use another default compiler.)
variant-y := $(patsubst "%",%,$(CONFIG_XTENSA_VARIANT_NAME))
variant-y := $(CONFIG_XTENSA_VARIANT_NAME)
VARIANT = $(variant-y)

5
arch/xtensa/boot/dts/Makefile
View File

@ -7,10 +7,7 @@
#
#
BUILTIN_DTB_SOURCE := $(patsubst "%",%,$(CONFIG_BUILTIN_DTB_SOURCE)).dtb.o
ifneq ($(CONFIG_BUILTIN_DTB_SOURCE),"")
obj-$(CONFIG_OF) += $(BUILTIN_DTB_SOURCE)
endif
obj-$(CONFIG_OF) += $(addsuffix .dtb.o, $(CONFIG_BUILTIN_DTB_SOURCE))
# for CONFIG_OF_ALL_DTBS test
dtstree := $(srctree)/$(src)

10
certs/Makefile
View File

@ -6,7 +6,7 @@
obj-$(CONFIG_SYSTEM_TRUSTED_KEYRING) += system_keyring.o system_certificates.o common.o
obj-$(CONFIG_SYSTEM_BLACKLIST_KEYRING) += blacklist.o common.o
obj-$(CONFIG_SYSTEM_REVOCATION_LIST) += revocation_certificates.o
ifneq ($(CONFIG_SYSTEM_BLACKLIST_HASH_LIST),"")
ifneq ($(CONFIG_SYSTEM_BLACKLIST_HASH_LIST),)
obj-$(CONFIG_SYSTEM_BLACKLIST_KEYRING) += blacklist_hashes.o
else
obj-$(CONFIG_SYSTEM_BLACKLIST_KEYRING) += blacklist_nohashes.o
@ -17,8 +17,6 @@ quiet_cmd_extract_certs = CERT $@
$(obj)/system_certificates.o: $(obj)/x509_certificate_list
CONFIG_SYSTEM_TRUSTED_KEYS := $(CONFIG_SYSTEM_TRUSTED_KEYS:"%"=%)
$(obj)/x509_certificate_list: $(CONFIG_SYSTEM_TRUSTED_KEYS) scripts/extract-cert FORCE
$(call if_changed,extract_certs,$(if $(CONFIG_SYSTEM_TRUSTED_KEYS),$<,""))
@ -46,7 +44,7 @@ ifdef SIGN_KEY
# We do it this way rather than having a boolean option for enabling an
# external private key, because 'make randconfig' might enable such a
# boolean option and we unfortunately can't make it depend on !RANDCONFIG.
ifeq ($(CONFIG_MODULE_SIG_KEY),"certs/signing_key.pem")
ifeq ($(CONFIG_MODULE_SIG_KEY),certs/signing_key.pem)
keytype-$(CONFIG_MODULE_SIG_KEY_TYPE_ECDSA) := -newkey ec -pkeyopt ec_paramgen_curve:secp384r1
@ -69,8 +67,6 @@ $(obj)/x509.genkey:
endif # CONFIG_MODULE_SIG_KEY
CONFIG_MODULE_SIG_KEY := $(CONFIG_MODULE_SIG_KEY:"%"=%)
# If CONFIG_MODULE_SIG_KEY isn't a PKCS#11 URI, depend on it
ifneq ($(filter-out pkcs11:%, %(CONFIG_MODULE_SIG_KEY)),)
X509_DEP := $(CONFIG_MODULE_SIG_KEY)
@ -86,8 +82,6 @@ targets += signing_key.x509
$(obj)/revocation_certificates.o: $(obj)/x509_revocation_list
CONFIG_SYSTEM_REVOCATION_KEYS := $(CONFIG_SYSTEM_REVOCATION_KEYS:"%"=%)
$(obj)/x509_revocation_list: $(CONFIG_SYSTEM_REVOCATION_KEYS) scripts/extract-cert FORCE
$(call if_changed,extract_certs,$(if $(CONFIG_SYSTEM_REVOCATION_KEYS),$<,""))

2
drivers/acpi/Makefile
View File

@ -9,7 +9,7 @@ ccflags-$(CONFIG_ACPI_DEBUG) += -DACPI_DEBUG_OUTPUT
# ACPI Boot-Time Table Parsing
#
ifeq ($(CONFIG_ACPI_CUSTOM_DSDT),y)
tables.o: $(src)/../../include/$(subst $\",,$(CONFIG_ACPI_CUSTOM_DSDT_FILE)) ;
tables.o: $(src)/../../include/$(CONFIG_ACPI_CUSTOM_DSDT_FILE) ;
endif

4
drivers/base/firmware_loader/builtin/Makefile
View File

@ -3,10 +3,10 @@ obj-y += main.o
# Create $(fwdir) from $(CONFIG_EXTRA_FIRMWARE_DIR) -- if it doesn't have a
# leading /, it's relative to $(srctree).
fwdir := $(subst $(quote),,$(CONFIG_EXTRA_FIRMWARE_DIR))
fwdir := $(CONFIG_EXTRA_FIRMWARE_DIR)
fwdir := $(addprefix $(srctree)/,$(filter-out /%,$(fwdir)))$(filter /%,$(fwdir))
firmware := $(addsuffix .gen.o, $(subst $(quote),,$(CONFIG_EXTRA_FIRMWARE)))
firmware := $(addsuffix .gen.o, $(CONFIG_EXTRA_FIRMWARE))
obj-y += $(firmware)
FWNAME = $(patsubst $(obj)/%.gen.S,%,$@)

2
init/Makefile
View File

@ -31,7 +31,7 @@ quiet_cmd_compile.h = CHK $@
cmd_compile.h = \
$(CONFIG_SHELL) $(srctree)/scripts/mkcompile_h $@ \
"$(UTS_MACHINE)" "$(CONFIG_SMP)" "$(CONFIG_PREEMPT_BUILD)" \
"$(CONFIG_PREEMPT_RT)" $(CONFIG_CC_VERSION_TEXT) "$(LD)"
"$(CONFIG_PREEMPT_RT)" "$(CONFIG_CC_VERSION_TEXT)" "$(LD)"
include/generated/compile.h: FORCE
$(call cmd,compile.h)

4
net/wireless/Makefile
View File

@ -33,8 +33,8 @@ $(obj)/shipped-certs.c: $(wildcard $(srctree)/$(src)/certs/*.hex)
echo 'unsigned int shipped_regdb_certs_len = sizeof(shipped_regdb_certs);'; \
) > $@
$(obj)/extra-certs.c: $(CONFIG_CFG80211_EXTRA_REGDB_KEYDIR:"%"=%) \
$(wildcard $(CONFIG_CFG80211_EXTRA_REGDB_KEYDIR:"%"=%)/*.x509)
$(obj)/extra-certs.c: $(CONFIG_CFG80211_EXTRA_REGDB_KEYDI) \
$(wildcard $(CONFIG_CFG80211_EXTRA_REGDB_KEYDIR)/*.x509)
@$(kecho) " GEN $@"
$(Q)(set -e; \
allf=""; \

1
scripts/Makefile.modinst
View File

@ -66,7 +66,6 @@ endif
# Don't stop modules_install even if we can't sign external modules.
#
ifeq ($(CONFIG_MODULE_SIG_ALL),y)
CONFIG_MODULE_SIG_KEY := $(CONFIG_MODULE_SIG_KEY:"%"=%)
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 $@ \

2
scripts/gen_autoksyms.sh
View File

@ -23,7 +23,7 @@ if grep -q "^CONFIG_MODVERSIONS=y$" include/config/auto.conf; then
needed_symbols="$needed_symbols module_layout"
fi
ksym_wl=$(sed -n 's/^CONFIG_UNUSED_KSYMS_WHITELIST="\(.*\)"$/\1/p' include/config/auto.conf)
ksym_wl=$(sed -n 's/^CONFIG_UNUSED_KSYMS_WHITELIST=\(.*\)$/\1/p' include/config/auto.conf)
if [ -n "$ksym_wl" ]; then
[ "${ksym_wl}" != "${ksym_wl#/}" ] || ksym_wl="$abs_srctree/$ksym_wl"
if [ ! -f "$ksym_wl" ] || [ ! -r "$ksym_wl" ]; then

24
scripts/kconfig/confdata.c
View File

@ -244,19 +244,21 @@ static int conf_set_sym_val(struct symbol *sym, int def, int def_flags, char *p)
p, sym->name);
return 1;
case S_STRING:
if (*p++ != '"')
break;
for (p2 = p; (p2 = strpbrk(p2, "\"\\")); p2++) {
if (*p2 == '"') {
*p2 = 0;
/* No escaping for S_DEF_AUTO (include/config/auto.conf) */
if (def != S_DEF_AUTO) {
if (*p++ != '"')
break;
for (p2 = p; (p2 = strpbrk(p2, "\"\\")); p2++) {
if (*p2 == '"') {
*p2 = 0;
break;
}
memmove(p2, p2 + 1, strlen(p2));
}
memmove(p2, p2 + 1, strlen(p2));
}
if (!p2) {
if (def != S_DEF_AUTO)
if (!p2) {
conf_warning("invalid string found");
return 1;
return 1;
}
}
/* fall through */
case S_INT:
@ -700,7 +702,7 @@ static void print_symbol_for_dotconfig(FILE *fp, struct symbol *sym)
static void print_symbol_for_autoconf(FILE *fp, struct symbol *sym)
{
__print_symbol(fp, sym, OUTPUT_N_NONE, true);
__print_symbol(fp, sym, OUTPUT_N_NONE, false);
}
void print_symbol_for_listconfig(struct symbol *sym)

2
scripts/setlocalversion
View File

@ -123,7 +123,7 @@ if test ! "$srctree" -ef .; then
fi
# CONFIG_LOCALVERSION and LOCALVERSION (if set)
config_localversion=$(sed -n 's/^CONFIG_LOCALVERSION="\(.*\)"$/\1/p' include/config/auto.conf)
config_localversion=$(sed -n 's/^CONFIG_LOCALVERSION=\(.*\)$/\1/p' include/config/auto.conf)
res="${res}${config_localversion}${LOCALVERSION}"
# scm version string if not at a tagged commit

2
usr/Makefile
View File

@ -21,7 +21,7 @@ obj-$(CONFIG_BLK_DEV_INITRD) := initramfs_data.o
$(obj)/initramfs_data.o: $(obj)/initramfs_inc_data
ramfs-input := $(strip $(shell echo $(CONFIG_INITRAMFS_SOURCE)))
ramfs-input := $(CONFIG_INITRAMFS_SOURCE)
cpio-data :=
# If CONFIG_INITRAMFS_SOURCE is empty, generate a small initramfs with the