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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 $(CONFIG_X))
These are not only ugly, but also fragile.
[1] and [2] do not work if the value contains spaces, like
CONFIG_X=" foo bar "
[3] does not work correctly if the value contains double-quotes like
CONFIG_X="foo\"bar"
[4] seems to work better, but has a cost of forking a process.
Anyway, quoted strings were always PITA for our Makefiles.
This commit changes Kconfig to stop quoting in include/config/auto.conf.
These are the string type symbols referenced in Makefiles or scripts:
ACPI_CUSTOM_DSDT_FILE
ARC_BUILTIN_DTB_NAME
ARC_TUNE_MCPU
BUILTIN_DTB_SOURCE
CC_IMPLICIT_FALLTHROUGH
CC_VERSION_TEXT
CFG80211_EXTRA_REGDB_KEYDIR
EXTRA_FIRMWARE
EXTRA_FIRMWARE_DIR
EXTRA_TARGETS
H8300_BUILTIN_DTB
INITRAMFS_SOURCE
LOCALVERSION
MODULE_SIG_HASH
MODULE_SIG_KEY
NDS32_BUILTIN_DTB
NIOS2_DTB_SOURCE
OPENRISC_BUILTIN_DTB
SOC_CANAAN_K210_DTB_SOURCE
SYSTEM_BLACKLIST_HASH_LIST
SYSTEM_REVOCATION_KEYS
SYSTEM_TRUSTED_KEYS
TARGET_CPU
UNUSED_KSYMS_WHITELIST
XILINX_MICROBLAZE0_FAMILY
XILINX_MICROBLAZE0_HW_VER
XTENSA_VARIANT_NAME
I checked them one by one, and fixed up the code where necessary.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
114 lines
3.3 KiB
Makefile
114 lines
3.3 KiB
Makefile
# SPDX-License-Identifier: GPL-2.0-only
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#
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# Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
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#
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KBUILD_DEFCONFIG := haps_hs_smp_defconfig
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ifeq ($(CROSS_COMPILE),)
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CROSS_COMPILE := $(call cc-cross-prefix, arc-linux- arceb-linux-)
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endif
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cflags-y += -fno-common -pipe -fno-builtin -mmedium-calls -D__linux__
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tune-mcpu-def-$(CONFIG_ISA_ARCOMPACT) := -mcpu=arc700
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tune-mcpu-def-$(CONFIG_ISA_ARCV2) := -mcpu=hs38
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ifeq ($(CONFIG_ARC_TUNE_MCPU),)
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cflags-y += $(tune-mcpu-def-y)
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else
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tune-mcpu := $(CONFIG_ARC_TUNE_MCPU)
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ifneq ($(call cc-option,$(tune-mcpu)),)
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cflags-y += $(tune-mcpu)
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else
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# The flag provided by 'CONFIG_ARC_TUNE_MCPU' option isn't known by this compiler
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# (probably the compiler is too old). Use ISA default mcpu flag instead as a safe option.
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$(warning ** WARNING ** CONFIG_ARC_TUNE_MCPU flag '$(tune-mcpu)' is unknown, fallback to '$(tune-mcpu-def-y)')
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cflags-y += $(tune-mcpu-def-y)
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endif
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endif
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ifdef CONFIG_ARC_CURR_IN_REG
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# For a global register definition, make sure it gets passed to every file
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# We had a customer reported bug where some code built in kernel was NOT using
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# any kernel headers, and missing the r25 global register
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# Can't do unconditionally because of recursive include issues
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# due to <linux/thread_info.h>
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LINUXINCLUDE += -include $(srctree)/arch/arc/include/asm/current.h
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endif
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cflags-y += -fsection-anchors
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cflags-$(CONFIG_ARC_HAS_LLSC) += -mlock
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cflags-$(CONFIG_ARC_HAS_SWAPE) += -mswape
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ifdef CONFIG_ISA_ARCV2
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ifdef CONFIG_ARC_USE_UNALIGNED_MEM_ACCESS
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cflags-y += -munaligned-access
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else
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cflags-y += -mno-unaligned-access
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endif
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ifndef CONFIG_ARC_HAS_LL64
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cflags-y += -mno-ll64
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endif
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ifndef CONFIG_ARC_HAS_DIV_REM
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cflags-y += -mno-div-rem
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endif
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endif
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cfi := $(call as-instr,.cfi_startproc\n.cfi_endproc,-DARC_DW2_UNWIND_AS_CFI)
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cflags-$(CONFIG_ARC_DW2_UNWIND) += -fasynchronous-unwind-tables $(cfi)
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# small data is default for elf32 tool-chain. If not usable, disable it
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# This also allows repurposing GP as scratch reg to gcc reg allocator
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disable_small_data := y
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cflags-$(disable_small_data) += -mno-sdata -fcall-used-gp
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cflags-$(CONFIG_CPU_BIG_ENDIAN) += -mbig-endian
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ldflags-$(CONFIG_CPU_BIG_ENDIAN) += -EB
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LIBGCC = $(shell $(CC) $(cflags-y) --print-libgcc-file-name)
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# Modules with short calls might break for calls into builtin-kernel
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KBUILD_CFLAGS_MODULE += -mlong-calls -mno-millicode
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# Finally dump eveything into kernel build system
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KBUILD_CFLAGS += $(cflags-y)
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KBUILD_AFLAGS += $(KBUILD_CFLAGS)
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KBUILD_LDFLAGS += $(ldflags-y)
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head-y := arch/arc/kernel/head.o
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# w/o this dtb won't embed into kernel binary
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core-y += arch/arc/boot/dts/
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core-y += arch/arc/plat-sim/
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core-$(CONFIG_ARC_PLAT_TB10X) += arch/arc/plat-tb10x/
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core-$(CONFIG_ARC_PLAT_AXS10X) += arch/arc/plat-axs10x/
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core-$(CONFIG_ARC_SOC_HSDK) += arch/arc/plat-hsdk/
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libs-y += arch/arc/lib/ $(LIBGCC)
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boot := arch/arc/boot
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boot_targets := uImage.bin uImage.gz uImage.lzma
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PHONY += $(boot_targets)
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$(boot_targets): vmlinux
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$(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
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uimage-default-y := uImage.bin
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uimage-default-$(CONFIG_KERNEL_GZIP) := uImage.gz
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uimage-default-$(CONFIG_KERNEL_LZMA) := uImage.lzma
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PHONY += uImage
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uImage: $(uimage-default-y)
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@ln -sf $< $(boot)/uImage
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@$(kecho) ' Image $(boot)/uImage is ready'
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CLEAN_FILES += $(boot)/uImage
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