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568 lines
19 KiB
568 lines
19 KiB
# |
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# This file is subject to the terms and conditions of the GNU General Public |
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# License. See the file "COPYING" in the main directory of this archive |
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# for more details. |
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# |
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# Copyright (C) 1994, 95, 96, 2003 by Ralf Baechle |
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# DECStation modifications by Paul M. Antoine, 1996 |
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# Copyright (C) 2002, 2003, 2004 Maciej W. Rozycki |
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# |
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# This file is included by the global makefile so that you can add your own |
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# architecture-specific flags and dependencies. Remember to do have actions |
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# for "archclean" cleaning up for this architecture. |
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# |
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archscripts: scripts_basic |
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$(Q)$(MAKE) $(build)=arch/mips/tools elf-entry |
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ifeq ($(CONFIG_CPU_LOONGSON3_WORKAROUNDS),y) |
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$(Q)$(MAKE) $(build)=arch/mips/tools loongson3-llsc-check |
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endif |
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$(Q)$(MAKE) $(build)=arch/mips/boot/tools relocs |
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KBUILD_DEFCONFIG := 32r2el_defconfig |
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KBUILD_DTBS := dtbs |
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# |
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# Select the object file format to substitute into the linker script. |
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# |
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ifdef CONFIG_CPU_LITTLE_ENDIAN |
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32bit-tool-archpref = mipsel |
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64bit-tool-archpref = mips64el |
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32bit-bfd = elf32-tradlittlemips |
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64bit-bfd = elf64-tradlittlemips |
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32bit-emul = elf32ltsmip |
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64bit-emul = elf64ltsmip |
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else |
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32bit-tool-archpref = mips |
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64bit-tool-archpref = mips64 |
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32bit-bfd = elf32-tradbigmips |
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64bit-bfd = elf64-tradbigmips |
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32bit-emul = elf32btsmip |
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64bit-emul = elf64btsmip |
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endif |
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ifdef CONFIG_32BIT |
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tool-archpref = $(32bit-tool-archpref) |
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UTS_MACHINE := mips |
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endif |
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ifdef CONFIG_64BIT |
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tool-archpref = $(64bit-tool-archpref) |
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UTS_MACHINE := mips64 |
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endif |
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ifneq ($(SUBARCH),$(ARCH)) |
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ifeq ($(CROSS_COMPILE),) |
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CROSS_COMPILE := $(call cc-cross-prefix, $(tool-archpref)-linux- $(tool-archpref)-linux-gnu- $(tool-archpref)-unknown-linux-gnu-) |
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endif |
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endif |
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ifdef CONFIG_FUNCTION_GRAPH_TRACER |
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ifndef KBUILD_MCOUNT_RA_ADDRESS |
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ifeq ($(call cc-option-yn,-mmcount-ra-address), y) |
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cflags-y += -mmcount-ra-address -DKBUILD_MCOUNT_RA_ADDRESS |
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endif |
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endif |
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endif |
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cflags-y += $(call cc-option, -mno-check-zero-division) |
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ifdef CONFIG_32BIT |
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ld-emul = $(32bit-emul) |
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vmlinux-32 = vmlinux |
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vmlinux-64 = vmlinux.64 |
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cflags-y += -mabi=32 |
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endif |
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ifdef CONFIG_64BIT |
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ld-emul = $(64bit-emul) |
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vmlinux-32 = vmlinux.32 |
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vmlinux-64 = vmlinux |
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cflags-y += -mabi=64 |
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endif |
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all-$(CONFIG_BOOT_ELF32) := $(vmlinux-32) |
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all-$(CONFIG_BOOT_ELF64) := $(vmlinux-64) |
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all-$(CONFIG_SYS_SUPPORTS_ZBOOT)+= vmlinuz |
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# |
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# GCC uses -G 0 -mabicalls -fpic as default. We don't want PIC in the kernel |
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# code since it only slows down the whole thing. At some point we might make |
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# use of global pointer optimizations but their use of $28 conflicts with |
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# the current pointer optimization. |
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# |
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# The DECStation requires an ECOFF kernel for remote booting, other MIPS |
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# machines may also. Since BFD is incredibly buggy with respect to |
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# crossformat linking we rely on the elf2ecoff tool for format conversion. |
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# |
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cflags-y += -G 0 -mno-abicalls -fno-pic -pipe |
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cflags-y += -msoft-float |
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LDFLAGS_vmlinux += -G 0 -static -n -nostdlib |
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KBUILD_AFLAGS_MODULE += -mlong-calls |
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KBUILD_CFLAGS_MODULE += -mlong-calls |
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ifeq ($(CONFIG_RELOCATABLE),y) |
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LDFLAGS_vmlinux += --emit-relocs |
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endif |
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# |
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# pass -msoft-float to GAS if it supports it. However on newer binutils |
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# (specifically newer than 2.24.51.20140728) we then also need to explicitly |
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# set ".set hardfloat" in all files which manipulate floating point registers. |
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# |
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ifneq ($(call as-option,-Wa$(comma)-msoft-float,),) |
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cflags-y += -DGAS_HAS_SET_HARDFLOAT -Wa,-msoft-float |
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endif |
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cflags-y += -ffreestanding |
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cflags-$(CONFIG_CPU_BIG_ENDIAN) += -EB |
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cflags-$(CONFIG_CPU_LITTLE_ENDIAN) += -EL |
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cflags-$(CONFIG_SB1XXX_CORELIS) += $(call cc-option,-mno-sched-prolog) \ |
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-fno-omit-frame-pointer |
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# Some distribution-specific toolchains might pass the -fstack-check |
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# option during the build, which adds a simple stack-probe at the beginning |
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# of every function. This stack probe is to ensure that there is enough |
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# stack space, else a SEGV is generated. This is not desirable for MIPS |
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# as kernel stacks are small, placed in unmapped virtual memory, and do not |
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# grow when overflowed. Especially on SGI IP27 platforms, this check will |
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# lead to a NULL pointer dereference in _raw_spin_lock_irq. |
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# |
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# In disassembly, this stack probe appears at the top of a function as: |
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# sd zero,<offset>(sp) |
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# Where <offset> is a negative value. |
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# |
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cflags-y += -fno-stack-check |
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# binutils from v2.35 when built with --enable-mips-fix-loongson3-llsc=yes, |
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# supports an -mfix-loongson3-llsc flag which emits a sync prior to each ll |
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# instruction to work around a CPU bug (see __SYNC_loongson3_war in asm/sync.h |
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# for a description). |
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# |
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# We disable this in order to prevent the assembler meddling with the |
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# instruction that labels refer to, ie. if we label an ll instruction: |
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# |
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# 1: ll v0, 0(a0) |
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# |
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# ...then with the assembler fix applied the label may actually point at a sync |
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# instruction inserted by the assembler, and if we were using the label in an |
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# exception table the table would no longer contain the address of the ll |
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# instruction. |
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# |
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# Avoid this by explicitly disabling that assembler behaviour. |
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# |
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cflags-y += $(call as-option,-Wa$(comma)-mno-fix-loongson3-llsc,) |
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# |
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# CPU-dependent compiler/assembler options for optimization. |
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# |
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cflags-$(CONFIG_CPU_R3000) += -march=r3000 |
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cflags-$(CONFIG_CPU_TX39XX) += -march=r3900 |
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cflags-$(CONFIG_CPU_R4300) += -march=r4300 -Wa,--trap |
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cflags-$(CONFIG_CPU_VR41XX) += -march=r4100 -Wa,--trap |
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cflags-$(CONFIG_CPU_R4X00) += -march=r4600 -Wa,--trap |
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cflags-$(CONFIG_CPU_TX49XX) += -march=r4600 -Wa,--trap |
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cflags-$(CONFIG_CPU_MIPS32_R1) += -march=mips32 -Wa,--trap |
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cflags-$(CONFIG_CPU_MIPS32_R2) += -march=mips32r2 -Wa,--trap |
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cflags-$(CONFIG_CPU_MIPS32_R5) += -march=mips32r5 -Wa,--trap -modd-spreg |
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cflags-$(CONFIG_CPU_MIPS32_R6) += -march=mips32r6 -Wa,--trap -modd-spreg |
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cflags-$(CONFIG_CPU_MIPS64_R1) += -march=mips64 -Wa,--trap |
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cflags-$(CONFIG_CPU_MIPS64_R2) += -march=mips64r2 -Wa,--trap |
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cflags-$(CONFIG_CPU_MIPS64_R5) += -march=mips64r5 -Wa,--trap |
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cflags-$(CONFIG_CPU_MIPS64_R6) += -march=mips64r6 -Wa,--trap |
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cflags-$(CONFIG_CPU_P5600) += -march=p5600 -Wa,--trap -modd-spreg |
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cflags-$(CONFIG_CPU_R5000) += -march=r5000 -Wa,--trap |
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cflags-$(CONFIG_CPU_R5500) += $(call cc-option,-march=r5500,-march=r5000) \ |
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-Wa,--trap |
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cflags-$(CONFIG_CPU_NEVADA) += $(call cc-option,-march=rm5200,-march=r5000) \ |
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-Wa,--trap |
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cflags-$(CONFIG_CPU_RM7000) += $(call cc-option,-march=rm7000,-march=r5000) \ |
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-Wa,--trap |
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cflags-$(CONFIG_CPU_SB1) += $(call cc-option,-march=sb1,-march=r5000) \ |
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-Wa,--trap |
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cflags-$(CONFIG_CPU_SB1) += $(call cc-option,-mno-mdmx) |
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cflags-$(CONFIG_CPU_SB1) += $(call cc-option,-mno-mips3d) |
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cflags-$(CONFIG_CPU_R10000) += $(call cc-option,-march=r10000,-march=r8000) \ |
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-Wa,--trap |
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cflags-$(CONFIG_CPU_CAVIUM_OCTEON) += $(call cc-option,-march=octeon) -Wa,--trap |
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ifeq (,$(findstring march=octeon, $(cflags-$(CONFIG_CPU_CAVIUM_OCTEON)))) |
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cflags-$(CONFIG_CPU_CAVIUM_OCTEON) += -Wa,-march=octeon |
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endif |
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cflags-$(CONFIG_CAVIUM_CN63XXP1) += -Wa,-mfix-cn63xxp1 |
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cflags-$(CONFIG_CPU_BMIPS) += -march=mips32 -Wa,-mips32 -Wa,--trap |
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cflags-$(CONFIG_CPU_R4000_WORKAROUNDS) += $(call cc-option,-mfix-r4000,) |
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cflags-$(CONFIG_CPU_R4400_WORKAROUNDS) += $(call cc-option,-mfix-r4400,) |
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cflags-$(CONFIG_CPU_DADDI_WORKAROUNDS) += $(call cc-option,-mno-daddi,) |
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# For smartmips configurations, there are hundreds of warnings due to ISA overrides |
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# in assembly and header files. smartmips is only supported for MIPS32r1 onwards |
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# and there is no support for 64-bit. Various '.set mips2' or '.set mips3' or |
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# similar directives in the kernel will spam the build logs with the following warnings: |
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# Warning: the `smartmips' extension requires MIPS32 revision 1 or greater |
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# or |
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# Warning: the 64-bit MIPS architecture does not support the `smartmips' extension |
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# Pass -Wa,--no-warn to disable all assembler warnings until the kernel code has |
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# been fixed properly. |
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mips-cflags := $(cflags-y) |
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ifeq ($(CONFIG_CPU_HAS_SMARTMIPS),y) |
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smartmips-ase := $(call cc-option-yn,$(mips-cflags) -msmartmips) |
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cflags-$(smartmips-ase) += -msmartmips -Wa,--no-warn |
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endif |
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ifeq ($(CONFIG_CPU_MICROMIPS),y) |
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micromips-ase := $(call cc-option-yn,$(mips-cflags) -mmicromips) |
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cflags-$(micromips-ase) += -mmicromips |
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endif |
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ifeq ($(CONFIG_CPU_HAS_MSA),y) |
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toolchain-msa := $(call cc-option-yn,$(mips-cflags) -mhard-float -mfp64 -Wa$(comma)-mmsa) |
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cflags-$(toolchain-msa) += -DTOOLCHAIN_SUPPORTS_MSA |
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endif |
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toolchain-virt := $(call cc-option-yn,$(mips-cflags) -mvirt) |
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cflags-$(toolchain-virt) += -DTOOLCHAIN_SUPPORTS_VIRT |
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# For -mmicromips, use -Wa,-fatal-warnings to catch unsupported -mxpa which |
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# only warns |
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xpa-cflags-y := $(mips-cflags) |
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xpa-cflags-$(micromips-ase) += -mmicromips -Wa$(comma)-fatal-warnings |
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toolchain-xpa := $(call cc-option-yn,$(xpa-cflags-y) -mxpa) |
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cflags-$(toolchain-xpa) += -DTOOLCHAIN_SUPPORTS_XPA |
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toolchain-crc := $(call cc-option-yn,$(mips-cflags) -Wa$(comma)-mcrc) |
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cflags-$(toolchain-crc) += -DTOOLCHAIN_SUPPORTS_CRC |
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toolchain-dsp := $(call cc-option-yn,$(mips-cflags) -Wa$(comma)-mdsp) |
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cflags-$(toolchain-dsp) += -DTOOLCHAIN_SUPPORTS_DSP |
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toolchain-ginv := $(call cc-option-yn,$(mips-cflags) -Wa$(comma)-mginv) |
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cflags-$(toolchain-ginv) += -DTOOLCHAIN_SUPPORTS_GINV |
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# |
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# Firmware support |
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# |
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libs-$(CONFIG_FW_ARC) += arch/mips/fw/arc/ |
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libs-$(CONFIG_FW_CFE) += arch/mips/fw/cfe/ |
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libs-$(CONFIG_FW_SNIPROM) += arch/mips/fw/sni/ |
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libs-y += arch/mips/fw/lib/ |
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# |
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# Kernel compression |
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# |
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ifdef CONFIG_SYS_SUPPORTS_ZBOOT |
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COMPRESSION_FNAME = vmlinuz |
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else |
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COMPRESSION_FNAME = vmlinux |
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endif |
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# |
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# Board-dependent options and extra files |
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# |
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include arch/mips/Kbuild.platforms |
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ifdef CONFIG_PHYSICAL_START |
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load-y = $(CONFIG_PHYSICAL_START) |
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endif |
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entry-y = $(shell $(objtree)/arch/mips/tools/elf-entry vmlinux) |
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cflags-y += -I$(srctree)/arch/mips/include/asm/mach-generic |
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drivers-$(CONFIG_PCI) += arch/mips/pci/ |
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# |
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# Automatically detect the build format. By default we choose |
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# the elf format according to the load address. |
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# We can always force a build with a 64-bits symbol format by |
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# passing 'KBUILD_SYM32=no' option to the make's command line. |
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# |
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ifdef CONFIG_64BIT |
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ifndef KBUILD_SYM32 |
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ifeq ($(shell expr $(load-y) \< 0xffffffff80000000), 0) |
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KBUILD_SYM32 = y |
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endif |
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endif |
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ifeq ($(KBUILD_SYM32)$(call cc-option-yn,-msym32), yy) |
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cflags-y += -msym32 -DKBUILD_64BIT_SYM32 |
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else |
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ifeq ($(CONFIG_CPU_DADDI_WORKAROUNDS), y) |
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$(error CONFIG_CPU_DADDI_WORKAROUNDS unsupported without -msym32) |
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endif |
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endif |
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endif |
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# When linking a 32-bit executable the LLVM linker cannot cope with a |
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# 32-bit load address that has been sign-extended to 64 bits. Simply |
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# remove the upper 32 bits then, as it is safe to do so with other |
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# linkers. |
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ifdef CONFIG_64BIT |
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load-ld = $(load-y) |
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else |
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load-ld = $(subst 0xffffffff,0x,$(load-y)) |
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endif |
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KBUILD_AFLAGS += $(cflags-y) |
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KBUILD_CFLAGS += $(cflags-y) |
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KBUILD_CPPFLAGS += -DVMLINUX_LOAD_ADDRESS=$(load-y) -DLINKER_LOAD_ADDRESS=$(load-ld) |
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KBUILD_CPPFLAGS += -DDATAOFFSET=$(if $(dataoffset-y),$(dataoffset-y),0) |
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bootvars-y = VMLINUX_LOAD_ADDRESS=$(load-y) \ |
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LINKER_LOAD_ADDRESS=$(load-ld) \ |
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VMLINUX_ENTRY_ADDRESS=$(entry-y) \ |
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PLATFORM="$(platform-y)" \ |
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ITS_INPUTS="$(its-y)" |
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ifdef CONFIG_32BIT |
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bootvars-y += ADDR_BITS=32 |
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endif |
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ifdef CONFIG_64BIT |
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bootvars-y += ADDR_BITS=64 |
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endif |
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# This is required to get dwarf unwinding tables into .debug_frame |
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# instead of .eh_frame so we don't discard them. |
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KBUILD_CFLAGS += -fno-asynchronous-unwind-tables |
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KBUILD_LDFLAGS += -m $(ld-emul) |
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ifdef CONFIG_MIPS |
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CHECKFLAGS += $(shell $(CC) $(KBUILD_CFLAGS) -dM -E -x c /dev/null | \ |
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egrep -vw '__GNUC_(|MINOR_|PATCHLEVEL_)_' | \ |
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sed -e "s/^\#define /-D'/" -e "s/ /'='/" -e "s/$$/'/" -e 's/\$$/&&/g') |
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endif |
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OBJCOPYFLAGS += --remove-section=.reginfo |
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head-y := arch/mips/kernel/head.o |
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libs-y += arch/mips/lib/ |
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libs-$(CONFIG_MIPS_FP_SUPPORT) += arch/mips/math-emu/ |
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# See arch/mips/Kbuild for content of core part of the kernel |
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core-y += arch/mips/ |
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drivers-y += arch/mips/crypto/ |
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# suspend and hibernation support |
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drivers-$(CONFIG_PM) += arch/mips/power/ |
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# boot image targets (arch/mips/boot/) |
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boot-y := vmlinux.bin |
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boot-y += vmlinux.ecoff |
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boot-y += vmlinux.srec |
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ifeq ($(shell expr $(load-y) \< 0xffffffff80000000 2> /dev/null), 0) |
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boot-y += uImage |
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boot-y += uImage.bin |
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boot-y += uImage.bz2 |
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boot-y += uImage.gz |
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boot-y += uImage.lzma |
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boot-y += uImage.lzo |
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endif |
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boot-y += vmlinux.itb |
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boot-y += vmlinux.gz.itb |
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boot-y += vmlinux.bz2.itb |
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boot-y += vmlinux.lzma.itb |
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boot-y += vmlinux.lzo.itb |
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# compressed boot image targets (arch/mips/boot/compressed/) |
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bootz-y := vmlinuz |
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bootz-y += vmlinuz.bin |
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bootz-y += vmlinuz.ecoff |
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bootz-y += vmlinuz.srec |
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ifeq ($(shell expr $(zload-y) \< 0xffffffff80000000 2> /dev/null), 0) |
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bootz-y += uzImage.bin |
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endif |
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bootz-y += vmlinuz.itb |
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# |
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# Some machines like the Indy need 32-bit ELF binaries for booting purposes. |
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# Other need ECOFF, so we build a 32-bit ELF binary for them which we then |
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# convert to ECOFF using elf2ecoff. |
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# |
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quiet_cmd_32 = OBJCOPY $@ |
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cmd_32 = $(OBJCOPY) -O $(32bit-bfd) $(OBJCOPYFLAGS) $< $@ |
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vmlinux.32: vmlinux |
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$(call cmd,32) |
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# |
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# The 64-bit ELF tools are pretty broken so at this time we generate 64-bit |
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# ELF files from 32-bit files by conversion. |
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# |
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quiet_cmd_64 = OBJCOPY $@ |
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cmd_64 = $(OBJCOPY) -O $(64bit-bfd) $(OBJCOPYFLAGS) $< $@ |
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vmlinux.64: vmlinux |
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$(call cmd,64) |
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all: $(all-y) $(KBUILD_DTBS) |
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# boot |
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$(boot-y): $(vmlinux-32) FORCE |
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$(Q)$(MAKE) $(build)=arch/mips/boot VMLINUX=$(vmlinux-32) \ |
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$(bootvars-y) arch/mips/boot/$@ |
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ifdef CONFIG_SYS_SUPPORTS_ZBOOT |
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# boot/compressed |
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$(bootz-y): $(vmlinux-32) FORCE |
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$(Q)$(MAKE) $(build)=arch/mips/boot/compressed \ |
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$(bootvars-y) 32bit-bfd=$(32bit-bfd) arch/mips/boot/$@ |
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else |
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vmlinuz: FORCE |
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@echo ' CONFIG_SYS_SUPPORTS_ZBOOT is not enabled' |
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/bin/false |
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endif |
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CLEAN_FILES += vmlinux.32 vmlinux.64 |
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# device-trees |
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core-y += arch/mips/boot/dts/ |
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archprepare: |
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ifdef CONFIG_MIPS32_N32 |
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@$(kecho) ' Checking missing-syscalls for N32' |
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$(Q)$(MAKE) $(build)=. missing-syscalls missing_syscalls_flags="-mabi=n32" |
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endif |
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ifdef CONFIG_MIPS32_O32 |
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@$(kecho) ' Checking missing-syscalls for O32' |
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$(Q)$(MAKE) $(build)=. missing-syscalls missing_syscalls_flags="-mabi=32" |
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endif |
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install: |
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$(Q)install -D -m 755 vmlinux $(INSTALL_PATH)/vmlinux-$(KERNELRELEASE) |
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ifdef CONFIG_SYS_SUPPORTS_ZBOOT |
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$(Q)install -D -m 755 vmlinuz $(INSTALL_PATH)/vmlinuz-$(KERNELRELEASE) |
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endif |
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$(Q)install -D -m 644 .config $(INSTALL_PATH)/config-$(KERNELRELEASE) |
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$(Q)install -D -m 644 System.map $(INSTALL_PATH)/System.map-$(KERNELRELEASE) |
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archclean: |
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$(Q)$(MAKE) $(clean)=arch/mips/boot |
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$(Q)$(MAKE) $(clean)=arch/mips/boot/compressed |
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$(Q)$(MAKE) $(clean)=arch/mips/boot/tools |
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archheaders: |
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$(Q)$(MAKE) $(build)=arch/mips/kernel/syscalls all |
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define archhelp |
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echo ' install - install kernel into $(INSTALL_PATH)' |
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echo ' vmlinux.ecoff - ECOFF boot image' |
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echo ' vmlinux.bin - Raw binary boot image' |
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echo ' vmlinux.srec - SREC boot image' |
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echo ' vmlinux.32 - 64-bit boot image wrapped in 32bits (IP22/IP32)' |
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echo ' vmlinuz - Compressed boot(zboot) image' |
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echo ' vmlinuz.ecoff - ECOFF zboot image' |
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echo ' vmlinuz.bin - Raw binary zboot image' |
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echo ' vmlinuz.srec - SREC zboot image' |
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echo ' uImage - U-Boot image' |
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echo ' uImage.bin - U-Boot image (uncompressed)' |
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echo ' uImage.bz2 - U-Boot image (bz2)' |
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echo ' uImage.gz - U-Boot image (gzip)' |
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echo ' uImage.lzma - U-Boot image (lzma)' |
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echo ' uImage.lzo - U-Boot image (lzo)' |
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echo ' uzImage.bin - U-Boot image (self-extracting)' |
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echo |
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echo ' These will be default as appropriate for a configured platform.' |
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echo |
|
echo ' If you are targeting a system supported by generic kernels you may' |
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echo ' configure the kernel for a given architecture target like so:' |
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echo |
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echo ' {micro32,32,64}{r1,r2,r6}{el,}_defconfig <BOARDS="list of boards">' |
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echo |
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echo ' Where BOARDS is some subset of the following:' |
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for board in $(sort $(BOARDS)); do echo " $${board}"; done |
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echo |
|
echo ' Specifically the following generic default configurations are' |
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echo ' supported:' |
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echo |
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$(foreach cfg,$(generic_defconfigs), |
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printf " %-24s - Build generic kernel for $(call describe_generic_defconfig,$(cfg))\n" $(cfg);) |
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echo |
|
echo ' The following legacy default configurations have been converted to' |
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echo ' generic and can still be used:' |
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echo |
|
$(foreach cfg,$(sort $(legacy_defconfigs)), |
|
printf " %-24s - Build $($(cfg)-y)\n" $(cfg);) |
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echo |
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echo ' Otherwise, the following default configurations are available:' |
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endef |
|
|
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generic_config_dir = $(srctree)/arch/$(ARCH)/configs/generic |
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generic_defconfigs := |
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|
|
# |
|
# 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),) |
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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 += $$(target) |
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$$(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)
|
|
|