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156b5e33ab
commit344ebf0994
upstream. The VDSO Makefile filters CFLAGS to select a subset which it uses whilst building the VDSO ELF. One of the flags it allows through is the -march= flag that selects the architecture/ISA to target. Unfortunately in cases where CONFIG_CPU_MIPS32_R{1,2}=y and the toolchain defaults to building for MIPS64, the main MIPS Makefile ends up using the short-form -<arch> flags in cflags-y. This is because the calls to cc-option always fail to use the long-form -march=<arch> flag due to the lack of an -mabi=<abi> flag in KBUILD_CFLAGS at the point where the cc-option function is executed. The resulting GCC invocation is something like: $ mips64-linux-gcc -Werror -march=mips32r2 -c -x c /dev/null -o tmp cc1: error: '-march=mips32r2' is not compatible with the selected ABI These short-form -<arch> flags are dropped by the VDSO Makefile's filtering, and so we attempt to build the VDSO without specifying any architecture. This results in an attempt to build the VDSO using whatever the compiler's default architecture is, regardless of whether that is suitable for the kernel configuration. One encountered build failure resulting from this mismatch is a rejection of the sync instruction if the kernel is configured for a MIPS32 or MIPS64 r1 or r2 target but the toolchain defaults to an older architecture revision such as MIPS1 which did not include the sync instruction: CC arch/mips/vdso/gettimeofday.o /tmp/ccGQKoOj.s: Assembler messages: /tmp/ccGQKoOj.s:273: Error: opcode not supported on this processor: mips1 (mips1) `sync' /tmp/ccGQKoOj.s:329: Error: opcode not supported on this processor: mips1 (mips1) `sync' /tmp/ccGQKoOj.s:520: Error: opcode not supported on this processor: mips1 (mips1) `sync' /tmp/ccGQKoOj.s:714: Error: opcode not supported on this processor: mips1 (mips1) `sync' /tmp/ccGQKoOj.s:1009: Error: opcode not supported on this processor: mips1 (mips1) `sync' /tmp/ccGQKoOj.s:1066: Error: opcode not supported on this processor: mips1 (mips1) `sync' /tmp/ccGQKoOj.s:1114: Error: opcode not supported on this processor: mips1 (mips1) `sync' /tmp/ccGQKoOj.s:1279: Error: opcode not supported on this processor: mips1 (mips1) `sync' /tmp/ccGQKoOj.s:1334: Error: opcode not supported on this processor: mips1 (mips1) `sync' /tmp/ccGQKoOj.s:1374: Error: opcode not supported on this processor: mips1 (mips1) `sync' /tmp/ccGQKoOj.s:1459: Error: opcode not supported on this processor: mips1 (mips1) `sync' /tmp/ccGQKoOj.s:1514: Error: opcode not supported on this processor: mips1 (mips1) `sync' /tmp/ccGQKoOj.s:1814: Error: opcode not supported on this processor: mips1 (mips1) `sync' /tmp/ccGQKoOj.s:2002: Error: opcode not supported on this processor: mips1 (mips1) `sync' /tmp/ccGQKoOj.s:2066: Error: opcode not supported on this processor: mips1 (mips1) `sync' make[2]: *** [scripts/Makefile.build:318: arch/mips/vdso/gettimeofday.o] Error 1 make[1]: *** [scripts/Makefile.build:558: arch/mips/vdso] Error 2 make[1]: *** Waiting for unfinished jobs.... This can be reproduced for example by attempting to build pistachio_defconfig using Arnd's GCC 8.1.0 mips64 toolchain from kernel.org: https://mirrors.edge.kernel.org/pub/tools/crosstool/files/bin/x86_64/8.1.0/x86_64-gcc-8.1.0-nolibc-mips64-linux.tar.xz Resolve this problem by using the long-form -march=<arch> in all cases, which makes it through the arch/mips/vdso/Makefile's filtering & is thus consistently used to build both the kernel proper & the VDSO. The use of cc-option to prefer the long-form & fall back to the short-form flags makes no sense since the short-form is just an abbreviation for the also-supported long-form in all GCC versions that we support building with. This means there is no case in which we have to use the short-form -<arch> flags, so we can simply remove them. The manual redefinition of _MIPS_ISA is removed naturally along with the use of the short-form flags that it accompanied, and whilst here we remove the separate assembler ISA selection. I suspect that both of these were only required due to the mips32 vs mips2 mismatch that was introduced by commit59b3e8e9aa
("[MIPS] Makefile crapectomy.") and fixed but not cleaned up by commit9200c0b2a0
("[MIPS] Fix Makefile bugs for MIPS32/MIPS64 R1 and R2."). I've marked this for backport as far as v4.4 where the MIPS VDSO was introduced. In earlier kernels there should be no ill effect to using the short-form flags. Signed-off-by: Paul Burton <paul.burton@mips.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: linux-mips@linux-mips.org Cc: stable@vger.kernel.org # v4.4+ Reviewed-by: James Hogan <jhogan@kernel.org> Patchwork: https://patchwork.linux-mips.org/patch/19579/ Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
543 lines
18 KiB
Makefile
543 lines
18 KiB
Makefile
#
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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/boot/tools relocs
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KBUILD_DEFCONFIG := ip22_defconfig
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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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#
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# We explicitly add the endianness specifier if needed, this allows
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# to compile kernels with a toolchain for the other endianness. We
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# carefully avoid to add it redundantly because gcc 3.3/3.4 complains
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# when fed the toolchain default!
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#
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# Certain gcc versions up to gcc 4.1.1 (probably 4.2-subversion as of
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# 2006-10-10 don't properly change the predefined symbols if -EB / -EL
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# are used, so we kludge that here. A bug has been filed at
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# http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29413.
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#
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undef-all += -UMIPSEB -U_MIPSEB -U__MIPSEB -U__MIPSEB__
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undef-all += -UMIPSEL -U_MIPSEL -U__MIPSEL -U__MIPSEL__
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predef-be += -DMIPSEB -D_MIPSEB -D__MIPSEB -D__MIPSEB__
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predef-le += -DMIPSEL -D_MIPSEL -D__MIPSEL -D__MIPSEL__
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cflags-$(CONFIG_CPU_BIG_ENDIAN) += $(shell $(CC) -dumpmachine |grep -q 'mips.*el-.*' && echo -EB $(undef-all) $(predef-be))
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cflags-$(CONFIG_CPU_LITTLE_ENDIAN) += $(shell $(CC) -dumpmachine |grep -q 'mips.*el-.*' || echo -EL $(undef-all) $(predef-le))
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cflags-$(CONFIG_SB1XXX_CORELIS) += $(call cc-option,-mno-sched-prolog) \
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-fno-omit-frame-pointer
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# Some distribution-specific toolchains might pass the -fstack-check
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# option during the build, which adds a simple stack-probe at the beginning
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# of every function. This stack probe is to ensure that there is enough
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# stack space, else a SEGV is generated. This is not desirable for MIPS
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# as kernel stacks are small, placed in unmapped virtual memory, and do not
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# grow when overflowed. Especially on SGI IP27 platforms, this check will
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# lead to a NULL pointer dereference in _raw_spin_lock_irq.
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#
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# In disassembly, this stack probe appears at the top of a function as:
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# sd zero,<offset>(sp)
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# Where <offset> is a negative value.
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#
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cflags-y += -fno-stack-check
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#
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# CPU-dependent compiler/assembler options for optimization.
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#
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cflags-$(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_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-$(CONFIG_CPU_MIPS64_R6) += -march=mips64r6 -Wa,--trap
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cflags-$(CONFIG_CPU_R5000) += -march=r5000 -Wa,--trap
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cflags-$(CONFIG_CPU_R5432) += $(call cc-option,-march=r5400,-march=r5000) \
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-Wa,--trap
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cflags-$(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_R8000) += -march=r8000 -Wa,--trap
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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-$(toolchain-virt) += -DTOOLCHAIN_SUPPORTS_VIRT
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#
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# Firmware support
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#
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libs-$(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 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 = $(CONFIG_PHYSICAL_START)
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endif
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entry-noisa-y = 0x$(shell $(NM) vmlinux 2>/dev/null \
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| grep "\bkernel_entry\b" | cut -f1 -d \ )
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ifdef CONFIG_CPU_MICROMIPS
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#
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# Set the ISA bit, since the kernel_entry symbol in the ELF will have it
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# clear which would lead to images containing addresses which bootloaders may
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# jump to as MIPS32 code.
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#
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entry-y = $(patsubst %0,%1,$(patsubst %2,%3,$(patsubst %4,%5, \
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$(patsubst %6,%7,$(patsubst %8,%9,$(patsubst %a,%b, \
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$(patsubst %c,%d,$(patsubst %e,%f,$(entry-noisa-y)))))))))
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else
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entry-y = $(entry-noisa-y)
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endif
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cflags-y += -I$(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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KBUILD_AFLAGS += $(cflags-y)
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KBUILD_CFLAGS += $(cflags-y)
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KBUILD_CPPFLAGS += -DVMLINUX_LOAD_ADDRESS=$(load-y)
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KBUILD_CPPFLAGS += -DDATAOFFSET=$(if $(dataoffset-y),$(dataoffset-y),0)
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bootvars-y = VMLINUX_LOAD_ADDRESS=$(load-y) \
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VMLINUX_ENTRY_ADDRESS=$(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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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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ifdef CONFIG_64BIT
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CHECKFLAGS += -m64
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endif
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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-y += 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-$(CONFIG_OPROFILE) += arch/mips/oprofile/
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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
|
|
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 ' 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))
|
|
|
|
.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.
|
|
#
|
|
.PHONY: sead3_defconfig
|
|
sead3_defconfig:
|
|
$(Q)$(MAKE) -f $(srctree)/Makefile 32r2el_defconfig BOARDS=sead-3
|
|
|
|
.PHONY: sead3micro_defconfig
|
|
sead3micro_defconfig:
|
|
$(Q)$(MAKE) -f $(srctree)/Makefile micro32r2el_defconfig BOARDS=sead-3
|