| # |
| # This file is subject to the terms and conditions of the GNU General Public |
| # License. See the file "COPYING" in the main directory of this archive |
| # for more details. |
| # |
| # Copyright (C) 1994, 95, 96, 2003 by Ralf Baechle |
| # DECStation modifications by Paul M. Antoine, 1996 |
| # Copyright (C) 2002, 2003, 2004 Maciej W. Rozycki |
| # |
| # This file is included by the global makefile so that you can add your own |
| # architecture-specific flags and dependencies. Remember to do have actions |
| # for "archclean" cleaning up for this architecture. |
| # |
| |
| archscripts: scripts_basic |
| $(Q)$(MAKE) $(build)=arch/mips/boot/tools relocs |
| |
| KBUILD_DEFCONFIG := 32r2el_defconfig |
| |
| # |
| # Select the object file format to substitute into the linker script. |
| # |
| ifdef CONFIG_CPU_LITTLE_ENDIAN |
| 32bit-tool-archpref = mipsel |
| 64bit-tool-archpref = mips64el |
| 32bit-bfd = elf32-tradlittlemips |
| 64bit-bfd = elf64-tradlittlemips |
| 32bit-emul = elf32ltsmip |
| 64bit-emul = elf64ltsmip |
| else |
| 32bit-tool-archpref = mips |
| 64bit-tool-archpref = mips64 |
| 32bit-bfd = elf32-tradbigmips |
| 64bit-bfd = elf64-tradbigmips |
| 32bit-emul = elf32btsmip |
| 64bit-emul = elf64btsmip |
| endif |
| |
| ifdef CONFIG_32BIT |
| tool-archpref = $(32bit-tool-archpref) |
| UTS_MACHINE := mips |
| endif |
| ifdef CONFIG_64BIT |
| tool-archpref = $(64bit-tool-archpref) |
| UTS_MACHINE := mips64 |
| endif |
| |
| ifneq ($(SUBARCH),$(ARCH)) |
| ifeq ($(CROSS_COMPILE),) |
| CROSS_COMPILE := $(call cc-cross-prefix, $(tool-archpref)-linux- $(tool-archpref)-linux-gnu- $(tool-archpref)-unknown-linux-gnu-) |
| endif |
| endif |
| |
| ifdef CONFIG_FUNCTION_GRAPH_TRACER |
| ifndef KBUILD_MCOUNT_RA_ADDRESS |
| ifeq ($(call cc-option-yn,-mmcount-ra-address), y) |
| cflags-y += -mmcount-ra-address -DKBUILD_MCOUNT_RA_ADDRESS |
| endif |
| endif |
| endif |
| cflags-y += $(call cc-option, -mno-check-zero-division) |
| |
| ifdef CONFIG_32BIT |
| ld-emul = $(32bit-emul) |
| vmlinux-32 = vmlinux |
| vmlinux-64 = vmlinux.64 |
| |
| cflags-y += -mabi=32 |
| endif |
| |
| ifdef CONFIG_64BIT |
| ld-emul = $(64bit-emul) |
| vmlinux-32 = vmlinux.32 |
| vmlinux-64 = vmlinux |
| |
| cflags-y += -mabi=64 |
| endif |
| |
| all-$(CONFIG_BOOT_ELF32) := $(vmlinux-32) |
| all-$(CONFIG_BOOT_ELF64) := $(vmlinux-64) |
| all-$(CONFIG_SYS_SUPPORTS_ZBOOT)+= vmlinuz |
| |
| # |
| # GCC uses -G 0 -mabicalls -fpic as default. We don't want PIC in the kernel |
| # code since it only slows down the whole thing. At some point we might make |
| # use of global pointer optimizations but their use of $28 conflicts with |
| # the current pointer optimization. |
| # |
| # The DECStation requires an ECOFF kernel for remote booting, other MIPS |
| # machines may also. Since BFD is incredibly buggy with respect to |
| # crossformat linking we rely on the elf2ecoff tool for format conversion. |
| # |
| cflags-y += -G 0 -mno-abicalls -fno-pic -pipe |
| cflags-y += -msoft-float |
| LDFLAGS_vmlinux += -G 0 -static -n -nostdlib |
| KBUILD_AFLAGS_MODULE += -mlong-calls |
| KBUILD_CFLAGS_MODULE += -mlong-calls |
| |
| ifeq ($(CONFIG_RELOCATABLE),y) |
| LDFLAGS_vmlinux += --emit-relocs |
| endif |
| |
| # |
| # pass -msoft-float to GAS if it supports it. However on newer binutils |
| # (specifically newer than 2.24.51.20140728) we then also need to explicitly |
| # set ".set hardfloat" in all files which manipulate floating point registers. |
| # |
| ifneq ($(call as-option,-Wa$(comma)-msoft-float,),) |
| cflags-y += -DGAS_HAS_SET_HARDFLOAT -Wa,-msoft-float |
| endif |
| |
| cflags-y += -ffreestanding |
| |
| # |
| # We explicitly add the endianness specifier if needed, this allows |
| # to compile kernels with a toolchain for the other endianness. We |
| # carefully avoid to add it redundantly because gcc 3.3/3.4 complains |
| # when fed the toolchain default! |
| # |
| # Certain gcc versions up to gcc 4.1.1 (probably 4.2-subversion as of |
| # 2006-10-10 don't properly change the predefined symbols if -EB / -EL |
| # are used, so we kludge that here. A bug has been filed at |
| # http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29413. |
| # |
| undef-all += -UMIPSEB -U_MIPSEB -U__MIPSEB -U__MIPSEB__ |
| undef-all += -UMIPSEL -U_MIPSEL -U__MIPSEL -U__MIPSEL__ |
| predef-be += -DMIPSEB -D_MIPSEB -D__MIPSEB -D__MIPSEB__ |
| predef-le += -DMIPSEL -D_MIPSEL -D__MIPSEL -D__MIPSEL__ |
| cflags-$(CONFIG_CPU_BIG_ENDIAN) += $(shell $(CC) -dumpmachine |grep -q 'mips.*el-.*' && echo -EB $(undef-all) $(predef-be)) |
| cflags-$(CONFIG_CPU_LITTLE_ENDIAN) += $(shell $(CC) -dumpmachine |grep -q 'mips.*el-.*' || echo -EL $(undef-all) $(predef-le)) |
| |
| cflags-$(CONFIG_SB1XXX_CORELIS) += $(call cc-option,-mno-sched-prolog) \ |
| -fno-omit-frame-pointer |
| |
| # Some distribution-specific toolchains might pass the -fstack-check |
| # option during the build, which adds a simple stack-probe at the beginning |
| # of every function. This stack probe is to ensure that there is enough |
| # stack space, else a SEGV is generated. This is not desirable for MIPS |
| # as kernel stacks are small, placed in unmapped virtual memory, and do not |
| # grow when overflowed. Especially on SGI IP27 platforms, this check will |
| # lead to a NULL pointer dereference in _raw_spin_lock_irq. |
| # |
| # In disassembly, this stack probe appears at the top of a function as: |
| # sd zero,<offset>(sp) |
| # Where <offset> is a negative value. |
| # |
| cflags-y += -fno-stack-check |
| |
| # |
| # CPU-dependent compiler/assembler options for optimization. |
| # |
| cflags-$(CONFIG_CPU_R3000) += -march=r3000 |
| cflags-$(CONFIG_CPU_TX39XX) += -march=r3900 |
| cflags-$(CONFIG_CPU_R4300) += -march=r4300 -Wa,--trap |
| cflags-$(CONFIG_CPU_VR41XX) += -march=r4100 -Wa,--trap |
| cflags-$(CONFIG_CPU_R4X00) += -march=r4600 -Wa,--trap |
| cflags-$(CONFIG_CPU_TX49XX) += -march=r4600 -Wa,--trap |
| cflags-$(CONFIG_CPU_MIPS32_R1) += $(call cc-option,-march=mips32,-mips32 -U_MIPS_ISA -D_MIPS_ISA=_MIPS_ISA_MIPS32) \ |
| -Wa,-mips32 -Wa,--trap |
| cflags-$(CONFIG_CPU_MIPS32_R2) += $(call cc-option,-march=mips32r2,-mips32r2 -U_MIPS_ISA -D_MIPS_ISA=_MIPS_ISA_MIPS32) \ |
| -Wa,-mips32r2 -Wa,--trap |
| cflags-$(CONFIG_CPU_MIPS32_R6) += -march=mips32r6 -Wa,--trap -modd-spreg |
| cflags-$(CONFIG_CPU_MIPS64_R1) += $(call cc-option,-march=mips64,-mips64 -U_MIPS_ISA -D_MIPS_ISA=_MIPS_ISA_MIPS64) \ |
| -Wa,-mips64 -Wa,--trap |
| cflags-$(CONFIG_CPU_MIPS64_R2) += $(call cc-option,-march=mips64r2,-mips64r2 -U_MIPS_ISA -D_MIPS_ISA=_MIPS_ISA_MIPS64) \ |
| -Wa,-mips64r2 -Wa,--trap |
| cflags-$(CONFIG_CPU_MIPS64_R6) += -march=mips64r6 -Wa,--trap |
| cflags-$(CONFIG_CPU_R5000) += -march=r5000 -Wa,--trap |
| cflags-$(CONFIG_CPU_R5432) += $(call cc-option,-march=r5400,-march=r5000) \ |
| -Wa,--trap |
| cflags-$(CONFIG_CPU_R5500) += $(call cc-option,-march=r5500,-march=r5000) \ |
| -Wa,--trap |
| cflags-$(CONFIG_CPU_NEVADA) += $(call cc-option,-march=rm5200,-march=r5000) \ |
| -Wa,--trap |
| cflags-$(CONFIG_CPU_RM7000) += $(call cc-option,-march=rm7000,-march=r5000) \ |
| -Wa,--trap |
| cflags-$(CONFIG_CPU_SB1) += $(call cc-option,-march=sb1,-march=r5000) \ |
| -Wa,--trap |
| cflags-$(CONFIG_CPU_SB1) += $(call cc-option,-mno-mdmx) |
| cflags-$(CONFIG_CPU_SB1) += $(call cc-option,-mno-mips3d) |
| cflags-$(CONFIG_CPU_R8000) += -march=r8000 -Wa,--trap |
| cflags-$(CONFIG_CPU_R10000) += $(call cc-option,-march=r10000,-march=r8000) \ |
| -Wa,--trap |
| cflags-$(CONFIG_CPU_CAVIUM_OCTEON) += $(call cc-option,-march=octeon) -Wa,--trap |
| ifeq (,$(findstring march=octeon, $(cflags-$(CONFIG_CPU_CAVIUM_OCTEON)))) |
| cflags-$(CONFIG_CPU_CAVIUM_OCTEON) += -Wa,-march=octeon |
| endif |
| cflags-$(CONFIG_CAVIUM_CN63XXP1) += -Wa,-mfix-cn63xxp1 |
| cflags-$(CONFIG_CPU_BMIPS) += -march=mips32 -Wa,-mips32 -Wa,--trap |
| |
| cflags-$(CONFIG_CPU_R4000_WORKAROUNDS) += $(call cc-option,-mfix-r4000,) |
| cflags-$(CONFIG_CPU_R4400_WORKAROUNDS) += $(call cc-option,-mfix-r4400,) |
| cflags-$(CONFIG_CPU_DADDI_WORKAROUNDS) += $(call cc-option,-mno-daddi,) |
| |
| # For smartmips configurations, there are hundreds of warnings due to ISA overrides |
| # in assembly and header files. smartmips is only supported for MIPS32r1 onwards |
| # and there is no support for 64-bit. Various '.set mips2' or '.set mips3' or |
| # similar directives in the kernel will spam the build logs with the following warnings: |
| # Warning: the `smartmips' extension requires MIPS32 revision 1 or greater |
| # or |
| # Warning: the 64-bit MIPS architecture does not support the `smartmips' extension |
| # Pass -Wa,--no-warn to disable all assembler warnings until the kernel code has |
| # been fixed properly. |
| mips-cflags := $(cflags-y) |
| ifeq ($(CONFIG_CPU_HAS_SMARTMIPS),y) |
| smartmips-ase := $(call cc-option-yn,$(mips-cflags) -msmartmips) |
| cflags-$(smartmips-ase) += -msmartmips -Wa,--no-warn |
| endif |
| ifeq ($(CONFIG_CPU_MICROMIPS),y) |
| micromips-ase := $(call cc-option-yn,$(mips-cflags) -mmicromips) |
| cflags-$(micromips-ase) += -mmicromips |
| endif |
| ifeq ($(CONFIG_CPU_HAS_MSA),y) |
| toolchain-msa := $(call cc-option-yn,$(mips-cflags) -mhard-float -mfp64 -Wa$(comma)-mmsa) |
| cflags-$(toolchain-msa) += -DTOOLCHAIN_SUPPORTS_MSA |
| endif |
| toolchain-virt := $(call cc-option-yn,$(mips-cflags) -mvirt) |
| cflags-$(toolchain-virt) += -DTOOLCHAIN_SUPPORTS_VIRT |
| # For -mmicromips, use -Wa,-fatal-warnings to catch unsupported -mxpa which |
| # only warns |
| xpa-cflags-y := $(mips-cflags) |
| xpa-cflags-$(micromips-ase) += -mmicromips -Wa$(comma)-fatal-warnings |
| toolchain-xpa := $(call cc-option-yn,$(xpa-cflags-y) -mxpa) |
| cflags-$(toolchain-xpa) += -DTOOLCHAIN_SUPPORTS_XPA |
| toolchain-crc := $(call cc-option-yn,$(mips-cflags) -Wa$(comma)-mcrc) |
| cflags-$(toolchain-crc) += -DTOOLCHAIN_SUPPORTS_CRC |
| |
| # |
| # Firmware support |
| # |
| libs-$(CONFIG_FW_ARC) += arch/mips/fw/arc/ |
| libs-$(CONFIG_FW_CFE) += arch/mips/fw/cfe/ |
| libs-$(CONFIG_FW_SNIPROM) += arch/mips/fw/sni/ |
| libs-y += arch/mips/fw/lib/ |
| |
| # |
| # Kernel compression |
| # |
| ifdef CONFIG_SYS_SUPPORTS_ZBOOT |
| COMPRESSION_FNAME = vmlinuz |
| else |
| COMPRESSION_FNAME = vmlinux |
| endif |
| |
| # |
| # Board-dependent options and extra files |
| # |
| include arch/mips/Kbuild.platforms |
| |
| ifdef CONFIG_PHYSICAL_START |
| load-y = $(CONFIG_PHYSICAL_START) |
| endif |
| |
| # Sign-extend the entry point to 64 bits if retrieved as a 32-bit number. |
| entry-y = $(shell $(OBJDUMP) -f vmlinux 2>/dev/null \ |
| | sed -n '/^start address / { \ |
| s/^.* //; \ |
| s/0x\([0-7].......\)$$/0x00000000\1/; \ |
| s/0x\(........\)$$/0xffffffff\1/; p }') |
| |
| cflags-y += -I$(srctree)/arch/mips/include/asm/mach-generic |
| drivers-$(CONFIG_PCI) += arch/mips/pci/ |
| |
| # |
| # Automatically detect the build format. By default we choose |
| # the elf format according to the load address. |
| # We can always force a build with a 64-bits symbol format by |
| # passing 'KBUILD_SYM32=no' option to the make's command line. |
| # |
| ifdef CONFIG_64BIT |
| ifndef KBUILD_SYM32 |
| ifeq ($(shell expr $(load-y) \< 0xffffffff80000000), 0) |
| KBUILD_SYM32 = y |
| endif |
| endif |
| |
| ifeq ($(KBUILD_SYM32)$(call cc-option-yn,-msym32), yy) |
| cflags-y += -msym32 -DKBUILD_64BIT_SYM32 |
| else |
| ifeq ($(CONFIG_CPU_DADDI_WORKAROUNDS), y) |
| $(error CONFIG_CPU_DADDI_WORKAROUNDS unsupported without -msym32) |
| endif |
| endif |
| endif |
| |
| KBUILD_AFLAGS += $(cflags-y) |
| KBUILD_CFLAGS += $(cflags-y) |
| KBUILD_CPPFLAGS += -DVMLINUX_LOAD_ADDRESS=$(load-y) |
| KBUILD_CPPFLAGS += -DDATAOFFSET=$(if $(dataoffset-y),$(dataoffset-y),0) |
| |
| bootvars-y = VMLINUX_LOAD_ADDRESS=$(load-y) \ |
| VMLINUX_ENTRY_ADDRESS=$(entry-y) \ |
| PLATFORM="$(platform-y)" \ |
| ITS_INPUTS="$(its-y)" |
| ifdef CONFIG_32BIT |
| bootvars-y += ADDR_BITS=32 |
| endif |
| ifdef CONFIG_64BIT |
| bootvars-y += ADDR_BITS=64 |
| endif |
| |
| # This is required to get dwarf unwinding tables into .debug_frame |
| # instead of .eh_frame so we don't discard them. |
| KBUILD_CFLAGS += -fno-asynchronous-unwind-tables |
| |
| LDFLAGS += -m $(ld-emul) |
| |
| ifdef CONFIG_MIPS |
| CHECKFLAGS += $(shell $(CC) $(KBUILD_CFLAGS) -dM -E -x c /dev/null | \ |
| egrep -vw '__GNUC_(|MINOR_|PATCHLEVEL_)_' | \ |
| sed -e "s/^\#define /-D'/" -e "s/ /'='/" -e "s/$$/'/" -e 's/\$$/&&/g') |
| ifdef CONFIG_64BIT |
| CHECKFLAGS += -m64 |
| endif |
| endif |
| |
| OBJCOPYFLAGS += --remove-section=.reginfo |
| |
| head-y := arch/mips/kernel/head.o |
| |
| libs-y += arch/mips/lib/ |
| libs-y += arch/mips/math-emu/ |
| |
| # See arch/mips/Kbuild for content of core part of the kernel |
| core-y += arch/mips/ |
| |
| drivers-$(CONFIG_MIPS_CRC_SUPPORT) += arch/mips/crypto/ |
| drivers-$(CONFIG_OPROFILE) += arch/mips/oprofile/ |
| |
| # suspend and hibernation support |
| drivers-$(CONFIG_PM) += arch/mips/power/ |
| |
| # boot image targets (arch/mips/boot/) |
| boot-y := vmlinux.bin |
| boot-y += vmlinux.ecoff |
| boot-y += vmlinux.srec |
| ifeq ($(shell expr $(load-y) \< 0xffffffff80000000 2> /dev/null), 0) |
| boot-y += uImage |
| boot-y += uImage.bin |
| boot-y += uImage.bz2 |
| boot-y += uImage.gz |
| boot-y += uImage.lzma |
| boot-y += uImage.lzo |
| endif |
| boot-y += vmlinux.itb |
| boot-y += vmlinux.gz.itb |
| boot-y += vmlinux.bz2.itb |
| boot-y += vmlinux.lzma.itb |
| boot-y += vmlinux.lzo.itb |
| |
| # compressed boot image targets (arch/mips/boot/compressed/) |
| bootz-y := vmlinuz |
| bootz-y += vmlinuz.bin |
| bootz-y += vmlinuz.ecoff |
| bootz-y += vmlinuz.srec |
| ifeq ($(shell expr $(zload-y) \< 0xffffffff80000000 2> /dev/null), 0) |
| bootz-y += uzImage.bin |
| endif |
| |
| ifdef CONFIG_LASAT |
| rom.bin rom.sw: vmlinux |
| $(Q)$(MAKE) $(build)=arch/mips/lasat/image \ |
| $(bootvars-y) $@ |
| endif |
| |
| # |
| # Some machines like the Indy need 32-bit ELF binaries for booting purposes. |
| # Other need ECOFF, so we build a 32-bit ELF binary for them which we then |
| # convert to ECOFF using elf2ecoff. |
| # |
| quiet_cmd_32 = OBJCOPY $@ |
| cmd_32 = $(OBJCOPY) -O $(32bit-bfd) $(OBJCOPYFLAGS) $< $@ |
| vmlinux.32: vmlinux |
| $(call cmd,32) |
| |
| # |
| # The 64-bit ELF tools are pretty broken so at this time we generate 64-bit |
| # ELF files from 32-bit files by conversion. |
| # |
| quiet_cmd_64 = OBJCOPY $@ |
| cmd_64 = $(OBJCOPY) -O $(64bit-bfd) $(OBJCOPYFLAGS) $< $@ |
| vmlinux.64: vmlinux |
| $(call cmd,64) |
| |
| all: $(all-y) |
| |
| # boot |
| $(boot-y): $(vmlinux-32) FORCE |
| $(Q)$(MAKE) $(build)=arch/mips/boot VMLINUX=$(vmlinux-32) \ |
| $(bootvars-y) arch/mips/boot/$@ |
| |
| ifdef CONFIG_SYS_SUPPORTS_ZBOOT |
| # boot/compressed |
| $(bootz-y): $(vmlinux-32) FORCE |
| $(Q)$(MAKE) $(build)=arch/mips/boot/compressed \ |
| $(bootvars-y) 32bit-bfd=$(32bit-bfd) $@ |
| else |
| vmlinuz: FORCE |
| @echo ' CONFIG_SYS_SUPPORTS_ZBOOT is not enabled' |
| /bin/false |
| endif |
| |
| |
| CLEAN_FILES += vmlinux.32 vmlinux.64 |
| |
| # device-trees |
| core-$(CONFIG_BUILTIN_DTB) += arch/mips/boot/dts/ |
| |
| %.dtb %.dtb.S %.dtb.o: | scripts |
| $(Q)$(MAKE) $(build)=arch/mips/boot/dts arch/mips/boot/dts/$@ |
| |
| PHONY += dtbs |
| dtbs: scripts |
| $(Q)$(MAKE) $(build)=arch/mips/boot/dts |
| |
| PHONY += dtbs_install |
| dtbs_install: |
| $(Q)$(MAKE) $(dtbinst)=arch/mips/boot/dts |
| |
| archprepare: |
| ifdef CONFIG_MIPS32_N32 |
| @$(kecho) ' Checking missing-syscalls for N32' |
| $(Q)$(MAKE) $(build)=. missing-syscalls missing_syscalls_flags="-mabi=n32" |
| endif |
| ifdef CONFIG_MIPS32_O32 |
| @$(kecho) ' Checking missing-syscalls for O32' |
| $(Q)$(MAKE) $(build)=. missing-syscalls missing_syscalls_flags="-mabi=32" |
| endif |
| |
| install: |
| $(Q)install -D -m 755 vmlinux $(INSTALL_PATH)/vmlinux-$(KERNELRELEASE) |
| ifdef CONFIG_SYS_SUPPORTS_ZBOOT |
| $(Q)install -D -m 755 vmlinuz $(INSTALL_PATH)/vmlinuz-$(KERNELRELEASE) |
| endif |
| $(Q)install -D -m 644 .config $(INSTALL_PATH)/config-$(KERNELRELEASE) |
| $(Q)install -D -m 644 System.map $(INSTALL_PATH)/System.map-$(KERNELRELEASE) |
| |
| archclean: |
| $(Q)$(MAKE) $(clean)=arch/mips/boot |
| $(Q)$(MAKE) $(clean)=arch/mips/boot/compressed |
| $(Q)$(MAKE) $(clean)=arch/mips/boot/tools |
| $(Q)$(MAKE) $(clean)=arch/mips/lasat |
| |
| define archhelp |
| echo ' install - install kernel into $(INSTALL_PATH)' |
| echo ' vmlinux.ecoff - ECOFF boot image' |
| echo ' vmlinux.bin - Raw binary boot image' |
| echo ' vmlinux.srec - SREC boot image' |
| echo ' vmlinux.32 - 64-bit boot image wrapped in 32bits (IP22/IP32)' |
| echo ' vmlinuz - Compressed boot(zboot) image' |
| echo ' vmlinuz.ecoff - ECOFF zboot image' |
| echo ' vmlinuz.bin - Raw binary zboot image' |
| echo ' vmlinuz.srec - SREC zboot image' |
| echo ' uImage - U-Boot image' |
| echo ' uImage.bin - U-Boot image (uncompressed)' |
| echo ' uImage.bz2 - U-Boot image (bz2)' |
| echo ' uImage.gz - U-Boot image (gzip)' |
| echo ' uImage.lzma - U-Boot image (lzma)' |
| echo ' uImage.lzo - U-Boot image (lzo)' |
| echo ' uzImage.bin - U-Boot image (self-extracting)' |
| echo ' dtbs - Device-tree blobs for enabled boards' |
| echo ' dtbs_install - Install dtbs to $(INSTALL_DTBS_PATH)' |
| echo |
| echo ' These will be default as appropriate for a configured platform.' |
| echo |
| echo ' If you are targeting a system supported by generic kernels you may' |
| echo ' configure the kernel for a given architecture target like so:' |
| echo |
| echo ' {micro32,32,64}{r1,r2,r6}{el,}_defconfig <BOARDS="list of boards">' |
| echo |
| echo ' Where BOARDS is some subset of the following:' |
| for board in $(sort $(BOARDS)); do echo " $${board}"; done |
| echo |
| echo ' Specifically the following generic default configurations are' |
| echo ' supported:' |
| echo |
| $(foreach cfg,$(generic_defconfigs), |
| printf " %-24s - Build generic kernel for $(call describe_generic_defconfig,$(cfg))\n" $(cfg);) |
| echo |
| echo ' The following legacy default configurations have been converted to' |
| echo ' generic and can still be used:' |
| echo |
| $(foreach cfg,$(sort $(legacy_defconfigs)), |
| printf " %-24s - Build $($(cfg)-y)\n" $(cfg);) |
| echo |
| echo ' Otherwise, the following default configurations are available:' |
| endef |
| |
| generic_config_dir = $(srctree)/arch/$(ARCH)/configs/generic |
| generic_defconfigs := |
| |
| # |
| # If the user generates a generic kernel configuration without specifying a |
| # list of boards to include the config fragments for, default to including all |
| # available board config fragments. |
| # |
| ifeq ($(BOARDS),) |
| BOARDS = $(patsubst board-%.config,%,$(notdir $(wildcard $(generic_config_dir)/board-*.config))) |
| endif |
| |
| # |
| # Generic kernel configurations which merge generic_defconfig with the |
| # appropriate config fragments from arch/mips/configs/generic/, resulting in |
| # the ability to easily configure the kernel for a given architecture, |
| # endianness & set of boards without duplicating the needed configuration in |
| # hundreds of defconfig files. |
| # |
| define gen_generic_defconfigs |
| $(foreach bits,$(1),$(foreach rev,$(2),$(foreach endian,$(3), |
| target := $(bits)$(rev)$(filter el,$(endian))_defconfig |
| generic_defconfigs += $$(target) |
| $$(target): $(generic_config_dir)/$(bits)$(rev).config |
| $$(target): $(generic_config_dir)/$(endian).config |
| ))) |
| endef |
| |
| $(eval $(call gen_generic_defconfigs,32 64,r1 r2 r6,eb el)) |
| $(eval $(call gen_generic_defconfigs,micro32,r2,eb el)) |
| |
| define describe_generic_defconfig |
| $(subst 32r,MIPS32 r,$(subst 64r,MIPS64 r,$(subst el, little endian,$(patsubst %_defconfig,%,$(1))))) |
| endef |
| |
| .PHONY: $(generic_defconfigs) |
| $(generic_defconfigs): |
| $(Q)$(CONFIG_SHELL) $(srctree)/scripts/kconfig/merge_config.sh \ |
| -m -O $(objtree) $(srctree)/arch/$(ARCH)/configs/generic_defconfig $^ | \ |
| grep -Ev '^#' |
| $(Q)cp $(KCONFIG_CONFIG) $(objtree)/.config.$@ |
| $(Q)$(MAKE) -f $(srctree)/Makefile olddefconfig \ |
| KCONFIG_CONFIG=$(objtree)/.config.$@ >/dev/null |
| $(Q)$(CONFIG_SHELL) $(srctree)/arch/$(ARCH)/tools/generic-board-config.sh \ |
| $(srctree) $(objtree) $(objtree)/.config.$@ $(KCONFIG_CONFIG) \ |
| "$(origin BOARDS)" $(BOARDS) |
| $(Q)$(MAKE) -f $(srctree)/Makefile olddefconfig |
| |
| # |
| # Prevent generic merge_config rules attempting to merge single fragments |
| # |
| $(generic_config_dir)/%.config: ; |
| |
| # |
| # Prevent direct use of generic_defconfig, which is intended to be used as the |
| # basis of the various ISA-specific targets generated above. |
| # |
| .PHONY: generic_defconfig |
| generic_defconfig: |
| $(Q)echo "generic_defconfig is not intended for direct use, but should instead be" |
| $(Q)echo "used via an ISA-specific target from the following list:" |
| $(Q)echo |
| $(Q)for cfg in $(generic_defconfigs); do echo " $${cfg}"; done |
| $(Q)echo |
| $(Q)false |
| |
| # |
| # Legacy defconfig compatibility - these targets used to be real defconfigs but |
| # now that the boards have been converted to use the generic kernel they are |
| # wrappers around the generic rules above. |
| # |
| legacy_defconfigs += ocelot_defconfig |
| ocelot_defconfig-y := 32r2el_defconfig BOARDS=ocelot |
| |
| legacy_defconfigs += sead3_defconfig |
| sead3_defconfig-y := 32r2el_defconfig BOARDS=sead-3 |
| |
| legacy_defconfigs += sead3micro_defconfig |
| sead3micro_defconfig-y := micro32r2el_defconfig BOARDS=sead-3 |
| |
| legacy_defconfigs += xilfpga_defconfig |
| xilfpga_defconfig-y := 32r2el_defconfig BOARDS=xilfpga |
| |
| .PHONY: $(legacy_defconfigs) |
| $(legacy_defconfigs): |
| $(Q)$(MAKE) -f $(srctree)/Makefile $($@-y) |
