From 129ab0d2d9f38b9d43df35235fc66c6740d6928b Mon Sep 17 00:00:00 2001 From: Masahiro Yamada Date: Tue, 14 Dec 2021 11:53:53 +0900 Subject: [PATCH 1/6] kbuild: do not quote string values in include/config/auto.conf The previous commit fixed up all shell scripts to not include include/config/auto.conf.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 --- Makefile | 4 ++-- arch/arc/Makefile | 4 ++-- arch/arc/boot/dts/Makefile | 4 ++-- arch/h8300/boot/dts/Makefile | 6 +---- arch/microblaze/Makefile | 2 +- arch/nds32/boot/dts/Makefile | 7 +----- arch/nios2/boot/dts/Makefile | 2 +- arch/openrisc/boot/dts/Makefile | 7 +----- arch/powerpc/boot/Makefile | 2 +- arch/riscv/boot/dts/canaan/Makefile | 4 +--- arch/sh/boot/dts/Makefile | 4 +--- arch/xtensa/Makefile | 2 +- arch/xtensa/boot/dts/Makefile | 5 +--- certs/Makefile | 10 ++------ drivers/acpi/Makefile | 2 +- drivers/base/firmware_loader/builtin/Makefile | 4 ++-- init/Makefile | 2 +- net/wireless/Makefile | 4 ++-- scripts/Makefile.modinst | 1 - scripts/gen_autoksyms.sh | 2 +- scripts/kconfig/confdata.c | 24 ++++++++++--------- scripts/setlocalversion | 2 +- usr/Makefile | 2 +- 23 files changed, 40 insertions(+), 66 deletions(-) diff --git a/Makefile b/Makefile index f1e3bb73bb74..3c44b08220bf 100644 --- a/Makefile +++ b/Makefile @@ -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: $(CC_VERSION_TEXT)"; \ fi diff --git a/arch/arc/Makefile b/arch/arc/Makefile index f252e7b924e9..efc54f3e35e0 100644 --- a/arch/arc/Makefile +++ b/arch/arc/Makefile @@ -14,10 +14,10 @@ cflags-y += -fno-common -pipe -fno-builtin -mmedium-calls -D__linux__ tune-mcpu-def-$(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 += $(tune-mcpu) else diff --git a/arch/arc/boot/dts/Makefile b/arch/arc/boot/dts/Makefile index 8483a86c743d..4237aa5de3a3 100644 --- a/arch/arc/boot/dts/Makefile +++ b/arch/arc/boot/dts/Makefile @@ -2,8 +2,8 @@ # Built-in dtb builtindtb-y := nsim_700 -ifneq ($(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 += $(builtindtb-y).dtb.o diff --git a/arch/h8300/boot/dts/Makefile b/arch/h8300/boot/dts/Makefile index 69fcd817892c..c36bbd1f2592 100644 --- a/arch/h8300/boot/dts/Makefile +++ b/arch/h8300/boot/dts/Makefile @@ -1,9 +1,5 @@ # SPDX-License-Identifier: GPL-2.0 -ifneq '$(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 diff --git a/arch/microblaze/Makefile b/arch/microblaze/Makefile index e775a696aa6f..a25e76d89e86 100644 --- a/arch/microblaze/Makefile +++ b/arch/microblaze/Makefile @@ -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 $(CPU_VER) | cut -d '.' -f 3) diff --git a/arch/nds32/boot/dts/Makefile b/arch/nds32/boot/dts/Makefile index f84bd529b6fd..4fc69562eae8 100644 --- a/arch/nds32/boot/dts/Makefile +++ b/arch/nds32/boot/dts/Makefile @@ -1,7 +1,2 @@ # SPDX-License-Identifier: GPL-2.0-only -ifneq '$(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)) diff --git a/arch/nios2/boot/dts/Makefile b/arch/nios2/boot/dts/Makefile index a91a0b09be63..e9e31bb40df8 100644 --- a/arch/nios2/boot/dts/Makefile +++ b/arch/nios2/boot/dts/Makefile @@ -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 $(dtstree)/*.dts)) diff --git a/arch/openrisc/boot/dts/Makefile b/arch/openrisc/boot/dts/Makefile index 17dd791a833f..13db5a2aab52 100644 --- a/arch/openrisc/boot/dts/Makefile +++ b/arch/openrisc/boot/dts/Makefile @@ -1,9 +1,4 @@ # SPDX-License-Identifier: GPL-2.0 -ifneq '$(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, $(CONFIG_OPENRISC_BUILTIN_DTB)) #DTC_FLAGS ?= -p 1024 diff --git a/arch/powerpc/boot/Makefile b/arch/powerpc/boot/Makefile index 9993c6256ad2..4b4827c475c6 100644 --- a/arch/powerpc/boot/Makefile +++ b/arch/powerpc/boot/Makefile @@ -365,7 +365,7 @@ image-$(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 := $(patsubst zImage%, zImage.initrd%, \ diff --git a/arch/riscv/boot/dts/canaan/Makefile b/arch/riscv/boot/dts/canaan/Makefile index 9ee7156c0c31..c61b08ac8554 100644 --- a/arch/riscv/boot/dts/canaan/Makefile +++ b/arch/riscv/boot/dts/canaan/Makefile @@ -1,5 +1,3 @@ # SPDX-License-Identifier: GPL-2.0 -ifneq ($(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, $(dtb-y)) -endif diff --git a/arch/sh/boot/dts/Makefile b/arch/sh/boot/dts/Makefile index c17d65b82abe..4a6dec9714a9 100644 --- a/arch/sh/boot/dts/Makefile +++ b/arch/sh/boot/dts/Makefile @@ -1,4 +1,2 @@ # SPDX-License-Identifier: GPL-2.0-only -ifneq ($(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)) diff --git a/arch/xtensa/Makefile b/arch/xtensa/Makefile index 9778216d6e09..ee2769519eaf 100644 --- a/arch/xtensa/Makefile +++ b/arch/xtensa/Makefile @@ -12,7 +12,7 @@ # Core configuration. # (Use VAR= to use another default compiler.) -variant-y := $(patsubst "%",%,$(CONFIG_XTENSA_VARIANT_NAME)) +variant-y := $(CONFIG_XTENSA_VARIANT_NAME) VARIANT = $(variant-y) diff --git a/arch/xtensa/boot/dts/Makefile b/arch/xtensa/boot/dts/Makefile index 0b8d00cdae7c..720628c0d8b9 100644 --- a/arch/xtensa/boot/dts/Makefile +++ b/arch/xtensa/boot/dts/Makefile @@ -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) diff --git a/certs/Makefile b/certs/Makefile index 69c1404152ef..7b48445d71f6 100644 --- a/certs/Makefile +++ b/certs/Makefile @@ -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 $(CONFIG_SYSTEM_REVOCATION_KEYS),$<,"")) diff --git a/drivers/acpi/Makefile b/drivers/acpi/Makefile index 3018714e87d9..da0cdd1e9380 100644 --- a/drivers/acpi/Makefile +++ b/drivers/acpi/Makefile @@ -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 diff --git a/drivers/base/firmware_loader/builtin/Makefile b/drivers/base/firmware_loader/builtin/Makefile index eb4be452062a..6c067dedc01e 100644 --- a/drivers/base/firmware_loader/builtin/Makefile +++ b/drivers/base/firmware_loader/builtin/Makefile @@ -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 $(obj)/%.gen.S,%,$@) diff --git a/init/Makefile b/init/Makefile index 04eeee12c076..06326e304384 100644 --- a/init/Makefile +++ b/init/Makefile @@ -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) diff --git a/net/wireless/Makefile b/net/wireless/Makefile index 756e7de7e33f..1e9be50469ce 100644 --- a/net/wireless/Makefile +++ b/net/wireless/Makefile @@ -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 $@" $(Q)(set -e; \ allf=""; \ diff --git a/scripts/Makefile.modinst b/scripts/Makefile.modinst index df7e3d578ef5..c2c43a0ecfe0 100644 --- a/scripts/Makefile.modinst +++ b/scripts/Makefile.modinst @@ -66,7 +66,6 @@ endif # Don't stop modules_install even if we can't sign external modules. # ifeq ($(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 $@ \ diff --git a/scripts/gen_autoksyms.sh b/scripts/gen_autoksyms.sh index 949d6a054034..120225c541c5 100755 --- a/scripts/gen_autoksyms.sh +++ b/scripts/gen_autoksyms.sh @@ -23,7 +23,7 @@ if grep -q "^CONFIG_MODVERSIONS=y$" 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 diff --git a/scripts/kconfig/confdata.c b/scripts/kconfig/confdata.c index 42bc56ee238c..59717be31210 100644 --- a/scripts/kconfig/confdata.c +++ b/scripts/kconfig/confdata.c @@ -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) diff --git a/scripts/setlocalversion b/scripts/setlocalversion index d06137405190..af4754a35e66 100755 --- a/scripts/setlocalversion +++ b/scripts/setlocalversion @@ -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 diff --git a/usr/Makefile b/usr/Makefile index b1a81a40eab1..7374873a539f 100644 --- a/usr/Makefile +++ b/usr/Makefile @@ -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 := $(CONFIG_INITRAMFS_SOURCE) cpio-data := # If CONFIG_INITRAMFS_SOURCE is empty, generate a small initramfs with the From 340a02535ee785c64c62a9c45706597a0139e972 Mon Sep 17 00:00:00 2001 From: Masahiro Yamada Date: Tue, 14 Dec 2021 11:53:54 +0900 Subject: [PATCH 2/6] certs: move scripts/extract-cert to certs/ extract-cert is only used in certs/Makefile. Move it there and build extract-cert on demand. Signed-off-by: Masahiro Yamada --- MAINTAINERS | 1 - certs/.gitignore | 1 + certs/Makefile | 13 +++++++++---- {scripts => certs}/extract-cert.c | 2 +- scripts/.gitignore | 1 - scripts/Makefile | 11 ++--------- scripts/remove-stale-files | 2 ++ 7 files changed, 15 insertions(+), 16 deletions(-) rename {scripts => certs}/extract-cert.c (98%) diff --git a/MAINTAINERS b/MAINTAINERS index 360e9aa0205d..f321ddbb1ab0 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -4410,7 +4410,6 @@ L: keyrings@vger.kernel.org S: Maintained F: Documentation/admin-guide/module-signing.rst F: certs/ -F: scripts/extract-cert.c F: scripts/sign-file.c CFAG12864B LCD DRIVER diff --git a/certs/.gitignore b/certs/.gitignore index 8c3763f80be3..9e42fe3e02f5 100644 --- a/certs/.gitignore +++ b/certs/.gitignore @@ -1,3 +1,4 @@ # SPDX-License-Identifier: GPL-2.0-only +/extract-cert /x509_certificate_list /x509_revocation_list diff --git a/certs/Makefile b/certs/Makefile index 7b48445d71f6..f7041c29a2e0 100644 --- a/certs/Makefile +++ b/certs/Makefile @@ -13,11 +13,11 @@ obj-$(CONFIG_SYSTEM_BLACKLIST_KEYRING) += blacklist_nohashes.o endif quiet_cmd_extract_certs = CERT $@ - cmd_extract_certs = scripts/extract-cert $(2) $@ + cmd_extract_certs = $(obj)/extract-cert $(2) $@ $(obj)/system_certificates.o: $(obj)/x509_certificate_list -$(obj)/x509_certificate_list: $(CONFIG_SYSTEM_TRUSTED_KEYS) scripts/extract-cert FORCE +$(obj)/x509_certificate_list: $(CONFIG_SYSTEM_TRUSTED_KEYS) $(obj)/extract-cert FORCE $(call if_changed,extract_certs,$(if $(CONFIG_SYSTEM_TRUSTED_KEYS),$<,"")) targets += x509_certificate_list @@ -74,7 +74,7 @@ endif $(obj)/system_certificates.o: $(obj)/signing_key.x509 -$(obj)/signing_key.x509: $(X509_DEP) scripts/extract-cert FORCE +$(obj)/signing_key.x509: $(X509_DEP) $(obj)/extract-cert FORCE $(call if_changed,extract_certs,$(if $(X509_DEP),$<,$(CONFIG_MODULE_SIG_KEY))) endif # CONFIG_MODULE_SIG @@ -82,7 +82,12 @@ targets += signing_key.x509 $(obj)/revocation_certificates.o: $(obj)/x509_revocation_list -$(obj)/x509_revocation_list: $(CONFIG_SYSTEM_REVOCATION_KEYS) scripts/extract-cert FORCE +$(obj)/x509_revocation_list: $(CONFIG_SYSTEM_REVOCATION_KEYS) $(obj)/extract-cert FORCE $(call if_changed,extract_certs,$(if $(CONFIG_SYSTEM_REVOCATION_KEYS),$<,"")) targets += x509_revocation_list + +hostprogs := extract-cert + +HOSTCFLAGS_extract-cert.o = $(shell pkg-config --cflags libcrypto 2> /dev/null) +HOSTLDLIBS_extract-cert = $(shell pkg-config --libs libcrypto 2> /dev/null || echo -lcrypto) diff --git a/scripts/extract-cert.c b/certs/extract-cert.c similarity index 98% rename from scripts/extract-cert.c rename to certs/extract-cert.c index 3bc48c726c41..f7ef7862f207 100644 --- a/scripts/extract-cert.c +++ b/certs/extract-cert.c @@ -29,7 +29,7 @@ static __attribute__((noreturn)) void format(void) { fprintf(stderr, - "Usage: scripts/extract-cert \n"); + "Usage: extract-cert \n"); exit(2); } diff --git a/scripts/.gitignore b/scripts/.gitignore index e83c620ef52c..eed308bef604 100644 --- a/scripts/.gitignore +++ b/scripts/.gitignore @@ -1,7 +1,6 @@ # SPDX-License-Identifier: GPL-2.0-only /asn1_compiler /bin2c -/extract-cert /insert-sys-cert /kallsyms /module.lds diff --git a/scripts/Makefile b/scripts/Makefile index 9adb6d247818..e198b22dc476 100644 --- a/scripts/Makefile +++ b/scripts/Makefile @@ -3,25 +3,18 @@ # scripts contains sources for various helper programs used throughout # the kernel for the build process. -CRYPTO_LIBS = $(shell pkg-config --libs libcrypto 2> /dev/null || echo -lcrypto) -CRYPTO_CFLAGS = $(shell pkg-config --cflags libcrypto 2> /dev/null) - hostprogs-always-$(CONFIG_BUILD_BIN2C) += bin2c hostprogs-always-$(CONFIG_KALLSYMS) += kallsyms hostprogs-always-$(BUILD_C_RECORDMCOUNT) += recordmcount hostprogs-always-$(CONFIG_BUILDTIME_TABLE_SORT) += sorttable hostprogs-always-$(CONFIG_ASN1) += asn1_compiler hostprogs-always-$(CONFIG_MODULE_SIG_FORMAT) += sign-file -hostprogs-always-$(CONFIG_SYSTEM_TRUSTED_KEYRING) += extract-cert hostprogs-always-$(CONFIG_SYSTEM_EXTRA_CERTIFICATE) += insert-sys-cert -hostprogs-always-$(CONFIG_SYSTEM_REVOCATION_LIST) += extract-cert HOSTCFLAGS_sorttable.o = -I$(srctree)/tools/include HOSTCFLAGS_asn1_compiler.o = -I$(srctree)/include -HOSTCFLAGS_sign-file.o = $(CRYPTO_CFLAGS) -HOSTLDLIBS_sign-file = $(CRYPTO_LIBS) -HOSTCFLAGS_extract-cert.o = $(CRYPTO_CFLAGS) -HOSTLDLIBS_extract-cert = $(CRYPTO_LIBS) +HOSTCFLAGS_sign-file.o = $(shell pkg-config --cflags libcrypto 2> /dev/null) +HOSTLDLIBS_sign-file = $(shell pkg-config --libs libcrypto 2> /dev/null || echo -lcrypto) ifdef CONFIG_UNWINDER_ORC ifeq ($(ARCH),x86_64) diff --git a/scripts/remove-stale-files b/scripts/remove-stale-files index 0114c41e6938..dd230792056a 100755 --- a/scripts/remove-stale-files +++ b/scripts/remove-stale-files @@ -34,3 +34,5 @@ if [ -n "${building_out_of_srctree}" ]; then rm -f arch/mips/boot/compressed/${f} done fi + +rm -f scripts/extract-cert From c0ee9bba55e1fda8ca22a2ac714d54737def50d4 Mon Sep 17 00:00:00 2001 From: Masahiro Yamada Date: Tue, 14 Dec 2021 11:53:55 +0900 Subject: [PATCH 3/6] microblaze: use built-in function to get CPU_{MAJOR,MINOR,REV} Use built-in functions instead of shell commands to avoid forking processes. Signed-off-by: Masahiro Yamada Reviewed-by: Nicolas Schier --- arch/microblaze/Makefile | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/arch/microblaze/Makefile b/arch/microblaze/Makefile index a25e76d89e86..1826d9ce4459 100644 --- a/arch/microblaze/Makefile +++ b/arch/microblaze/Makefile @@ -6,9 +6,9 @@ UTS_SYSNAME = -DUTS_SYSNAME=\"Linux\" # What CPU version are we building for, and crack it open # as major.minor.rev 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) +CPU_MAJOR := $(word 1, $(subst ., , $(CPU_VER))) +CPU_MINOR := $(word 2, $(subst ., , $(CPU_VER))) +CPU_REV := $(word 3, $(subst ., , $(CPU_VER))) export CPU_VER CPU_MAJOR CPU_MINOR CPU_REV From c199d5d0a79d4eb11623e0eb645b27d271f8d713 Mon Sep 17 00:00:00 2001 From: Miguel Ojeda Date: Fri, 31 Dec 2021 20:59:25 +0100 Subject: [PATCH 4/6] doc: kbuild: fix default in `imply` table `BAZ` takes `FOO`'s value as default (as far as `BAR` allows it). Signed-off-by: Miguel Ojeda Signed-off-by: Masahiro Yamada --- Documentation/kbuild/kconfig-language.rst | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Documentation/kbuild/kconfig-language.rst b/Documentation/kbuild/kconfig-language.rst index 98c24183d8c3..93a5b6e1fabd 100644 --- a/Documentation/kbuild/kconfig-language.rst +++ b/Documentation/kbuild/kconfig-language.rst @@ -176,7 +176,7 @@ applicable everywhere (see syntax). y y y Y/m/n n m n N/m m m m M/n - y m n M/n + y m m M/n y n * N === === ============= ============== From 82977af93a0dc4e70f60ca2137b67f65ebe47fc7 Mon Sep 17 00:00:00 2001 From: Masahiro Yamada Date: Mon, 10 Jan 2022 03:15:25 +0900 Subject: [PATCH 5/6] sh: rename suffix-y to suffix_y 'export suffix-y' does not work reliably because hyphens are disallowed in shell variables. A similar issue was fixed by commit 2bfbe7881ee0 ("kbuild: Do not use hyphen in exported variable name"). If I do similar in dash, ARCH=sh fails to build. $ mv linux linux~ $ cd linux~ $ dash $ make O=foo/bar ARCH=sh CROSS_COMPILE=sh4-linux-gnu- defconfig all make[1]: Entering directory '/home/masahiro/linux~/foo/bar' [ snip ] make[4]: *** No rule to make target 'arch/sh/boot/compressed/vmlinux.bin.', needed by 'arch/sh/boot/compressed/piggy.o'. Stop. make[3]: *** [/home/masahiro/linux~/arch/sh/boot/Makefile:40: arch/sh/boot/compressed/vmlinux] Error 2 make[2]: *** [/home/masahiro/linux~/arch/sh/Makefile:194: zImage] Error 2 make[1]: *** [/home/masahiro/linux~/Makefile:350: __build_one_by_one] Error 2 make[1]: Leaving directory '/home/masahiro/linux~/foo/bar' make: *** [Makefile:219: __sub-make] Error 2 The maintainer of GNU Make stated that there is no consistent way to export variables that do not meet the shell's naming criteria. (https://savannah.gnu.org/bugs/?55719) Consequently, you cannot use hyphens in exported variables. Signed-off-by: Masahiro Yamada Reviewed-by: Nicolas Schier --- arch/sh/boot/Makefile | 16 ++++++++-------- arch/sh/boot/compressed/Makefile | 2 +- 2 files changed, 9 insertions(+), 9 deletions(-) diff --git a/arch/sh/boot/Makefile b/arch/sh/boot/Makefile index 5c123f5b2797..1f5d2df3c7e0 100644 --- a/arch/sh/boot/Makefile +++ b/arch/sh/boot/Makefile @@ -19,12 +19,12 @@ CONFIG_ZERO_PAGE_OFFSET ?= 0x00001000 CONFIG_ENTRY_OFFSET ?= 0x00001000 CONFIG_PHYSICAL_START ?= $(CONFIG_MEMORY_START) -suffix-y := bin -suffix-$(CONFIG_KERNEL_GZIP) := gz -suffix-$(CONFIG_KERNEL_BZIP2) := bz2 -suffix-$(CONFIG_KERNEL_LZMA) := lzma -suffix-$(CONFIG_KERNEL_XZ) := xz -suffix-$(CONFIG_KERNEL_LZO) := lzo +suffix_y := bin +suffix_$(CONFIG_KERNEL_GZIP) := gz +suffix_$(CONFIG_KERNEL_BZIP2) := bz2 +suffix_$(CONFIG_KERNEL_LZMA) := lzma +suffix_$(CONFIG_KERNEL_XZ) := xz +suffix_$(CONFIG_KERNEL_LZO) := lzo targets := zImage vmlinux.srec romImage uImage uImage.srec uImage.gz \ uImage.bz2 uImage.lzma uImage.xz uImage.lzo uImage.bin \ @@ -106,10 +106,10 @@ OBJCOPYFLAGS_uImage.srec := -I binary -O srec $(obj)/uImage.srec: $(obj)/uImage FORCE $(call if_changed,objcopy) -$(obj)/uImage: $(obj)/uImage.$(suffix-y) +$(obj)/uImage: $(obj)/uImage.$(suffix_y) @ln -sf $(notdir $<) $@ @echo ' Image $@ is ready' export CONFIG_PAGE_OFFSET CONFIG_MEMORY_START CONFIG_BOOT_LINK_OFFSET \ CONFIG_PHYSICAL_START CONFIG_ZERO_PAGE_OFFSET CONFIG_ENTRY_OFFSET \ - KERNEL_MEMORY suffix-y + KERNEL_MEMORY suffix_y diff --git a/arch/sh/boot/compressed/Makefile b/arch/sh/boot/compressed/Makefile index cf3174df7859..c1eb9a62de55 100644 --- a/arch/sh/boot/compressed/Makefile +++ b/arch/sh/boot/compressed/Makefile @@ -64,5 +64,5 @@ OBJCOPYFLAGS += -R .empty_zero_page LDFLAGS_piggy.o := -r --format binary --oformat $(ld-bfd) -T -$(obj)/piggy.o: $(obj)/vmlinux.scr $(obj)/vmlinux.bin.$(suffix-y) FORCE +$(obj)/piggy.o: $(obj)/vmlinux.scr $(obj)/vmlinux.bin.$(suffix_y) FORCE $(call if_changed,ld) From 64d8aaa4ef388b22372de4dc9ce3b9b3e5f45b6c Mon Sep 17 00:00:00 2001 From: Masahiro Yamada Date: Mon, 10 Jan 2022 03:15:26 +0900 Subject: [PATCH 6/6] kbuild: drop $(size_append) from cmd_zstd The appended file size is only used by the decompressors, which some architectures support. As the comment "zstd22 is used for kernel compression" says, cmd_zstd22 is used in arch/{mips,s390,x86}/boot/compressed/Makefile. On the other hand, there is no good reason to append the file size to cmd_zstd since it is used for other purposes. Actually cmd_zstd is only used in usr/Makefile, where the appended file size is rather harmful. The initramfs with its file size appended is considered as corrupted data, so commit 65e00e04e5ae ("initramfs: refactor the initramfs build rules") added 'override size_append := :' to make it no-op. As a conclusion, this $(size_append) should not exist here. Signed-off-by: Masahiro Yamada Reviewed-by: Nicolas Schier --- scripts/Makefile.lib | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib index d1f865b8c0cb..5366466ea0e4 100644 --- a/scripts/Makefile.lib +++ b/scripts/Makefile.lib @@ -473,7 +473,7 @@ quiet_cmd_xzmisc = XZMISC $@ # be used because it would require zstd to allocate a 128 MB buffer. quiet_cmd_zstd = ZSTD $@ - cmd_zstd = { cat $(real-prereqs) | $(ZSTD) -19; $(size_append); } > $@ + cmd_zstd = cat $(real-prereqs) | $(ZSTD) -19 > $@ quiet_cmd_zstd22 = ZSTD22 $@ cmd_zstd22 = { cat $(real-prereqs) | $(ZSTD) -22 --ultra; $(size_append); } > $@