[deliverable/linux.git] / arch / mips / Makefile

#
# 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.
#

KBUILD_DEFCONFIG := ip22_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

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_CPU_HAS_SMARTMIPS)	+= $(call cc-option,-msmartmips)
cflags-$(CONFIG_CPU_MICROMIPS) += $(call cc-option,-mmicromips -mno-jals)

cflags-$(CONFIG_SB1XXX_CORELIS)	+= $(call cc-option,-mno-sched-prolog) \
				   -fno-omit-frame-pointer

#
# CPU-dependent compiler/assembler options for optimization.
#
cflags-$(CONFIG_CPU_R3000)	+= -march=r3000
cflags-$(CONFIG_CPU_TX39XX)	+= -march=r3900
cflags-$(CONFIG_CPU_R6000)	+= -march=r6000 -Wa,--trap
cflags-$(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_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_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_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,)

ifdef CONFIG_CPU_SB1
ifdef CONFIG_SB1_PASS_1_WORKAROUNDS
KBUILD_AFLAGS_MODULE += -msb1-pass1-workarounds
KBUILD_CFLAGS_MODULE += -msb1-pass1-workarounds
endif
endif

#
# 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 SYS_SUPPORTS_ZBOOT
COMPRESSION_FNAME		= vmlinuz
else
COMPRESSION_FNAME		= vmlinux
endif

#
# Board-dependent options and extra files
#
include $(srctree)/arch/mips/Kbuild.platforms

ifdef CONFIG_PHYSICAL_START
load-y					= $(CONFIG_PHYSICAL_START)
endif

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)

LDFLAGS			+= -m $(ld-emul)

ifdef CONFIG_CC_STACKPROTECTOR
  KBUILD_CFLAGS += -fstack-protector
endif

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/$$/'/")
ifdef CONFIG_64BIT
CHECKFLAGS		+= -m64
endif
endif

OBJCOPYFLAGS		+= --remove-section=.reginfo

head-y := arch/mips/kernel/head.o

libs-y			+= arch/mips/lib/

# See arch/mips/Kbuild for content of core part of the kernel
core-y += arch/mips/

drivers-$(CONFIG_OPROFILE)	+= arch/mips/oprofile/

# suspend and hibernation support
drivers-$(CONFIG_PM)	+= arch/mips/power/

ifdef CONFIG_LASAT
rom.bin rom.sw: vmlinux
	$(Q)$(MAKE) $(build)=arch/mips/lasat/image $@
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.
#
vmlinux.32: vmlinux
	$(OBJCOPY) -O $(32bit-bfd) $(OBJCOPYFLAGS) $< $@


#obj-$(CONFIG_KPROBES)		+= kprobes.o

#
# The 64-bit ELF tools are pretty broken so at this time we generate 64-bit
# ELF files from 32-bit files by conversion.
#
vmlinux.64: vmlinux
	$(OBJCOPY) -O $(64bit-bfd) $(OBJCOPYFLAGS) $< $@

all:	$(all-y)

# boot
vmlinux.bin vmlinux.ecoff vmlinux.srec: $(vmlinux-32) FORCE
	$(Q)$(MAKE) $(build)=arch/mips/boot VMLINUX=$(vmlinux-32) arch/mips/boot/$@

# boot/compressed
vmlinuz vmlinuz.bin vmlinuz.ecoff vmlinuz.srec: $(vmlinux-32) FORCE
	$(Q)$(MAKE) $(build)=arch/mips/boot/compressed \
	   VMLINUX_LOAD_ADDRESS=$(load-y) 32bit-bfd=$(32bit-bfd) $@


CLEAN_FILES += vmlinux.32 vmlinux.64

archprepare:
ifdef CONFIG_MIPS32_N32
	@echo '  Checking missing-syscalls for N32'
	$(Q)$(MAKE) $(build)=. missing-syscalls missing_syscalls_flags="-mabi=n32"
endif
ifdef CONFIG_MIPS32_O32
	@echo '  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/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 '  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
	echo '  These will be default as appropriate for a configured platform.'
endef
Commit	Line	Data
	1	#
	2	# This file is subject to the terms and conditions of the GNU General Public
	3	# License. See the file "COPYING" in the main directory of this archive
	4	# for more details.
	5	#
	6	# Copyright (C) 1994, 95, 96, 2003 by Ralf Baechle
	7	# DECStation modifications by Paul M. Antoine, 1996
	8	# Copyright (C) 2002, 2003, 2004 Maciej W. Rozycki
	9	#
	10	# This file is included by the global makefile so that you can add your own
	11	# architecture-specific flags and dependencies. Remember to do have actions
	12	# for "archclean" cleaning up for this architecture.
	13	#
	14
	15	KBUILD_DEFCONFIG := ip22_defconfig
	16
	17	#
	18	# Select the object file format to substitute into the linker script.
	19	#
	20	ifdef CONFIG_CPU_LITTLE_ENDIAN
	21	32bit-tool-archpref = mipsel
	22	64bit-tool-archpref = mips64el
	23	32bit-bfd = elf32-tradlittlemips
	24	64bit-bfd = elf64-tradlittlemips
	25	32bit-emul = elf32ltsmip
	26	64bit-emul = elf64ltsmip
	27	else
	28	32bit-tool-archpref = mips
	29	64bit-tool-archpref = mips64
	30	32bit-bfd = elf32-tradbigmips
	31	64bit-bfd = elf64-tradbigmips
	32	32bit-emul = elf32btsmip
	33	64bit-emul = elf64btsmip
	34	endif
	35
	36	ifdef CONFIG_32BIT
	37	tool-archpref = $(32bit-tool-archpref)
	38	UTS_MACHINE := mips
	39	endif
	40	ifdef CONFIG_64BIT
	41	tool-archpref = $(64bit-tool-archpref)
	42	UTS_MACHINE := mips64
	43	endif
	44
	45	ifneq ($(SUBARCH),$(ARCH))
	46	ifeq ($(CROSS_COMPILE),)
	47	CROSS_COMPILE := $(call cc-cross-prefix, $(tool-archpref)-linux- $(tool-archpref)-linux-gnu- $(tool-archpref)-unknown-linux-gnu-)
	48	endif
	49	endif
	50
	51	ifdef CONFIG_FUNCTION_GRAPH_TRACER
	52	ifndef KBUILD_MCOUNT_RA_ADDRESS
	53	ifeq ($(call cc-option-yn,-mmcount-ra-address), y)
	54	cflags-y += -mmcount-ra-address -DKBUILD_MCOUNT_RA_ADDRESS
	55	endif
	56	endif
	57	endif
	58	cflags-y += $(call cc-option, -mno-check-zero-division)
	59
	60	ifdef CONFIG_32BIT
	61	ld-emul = $(32bit-emul)
	62	vmlinux-32 = vmlinux
	63	vmlinux-64 = vmlinux.64
	64
	65	cflags-y += -mabi=32
	66	endif
	67
	68	ifdef CONFIG_64BIT
	69	ld-emul = $(64bit-emul)
	70	vmlinux-32 = vmlinux.32
	71	vmlinux-64 = vmlinux
	72
	73	cflags-y += -mabi=64
	74	endif
	75
	76	all-$(CONFIG_BOOT_ELF32) := $(vmlinux-32)
	77	all-$(CONFIG_BOOT_ELF64) := $(vmlinux-64)
	78	all-$(CONFIG_SYS_SUPPORTS_ZBOOT)+= vmlinuz
	79
	80	#
	81	# GCC uses -G 0 -mabicalls -fpic as default. We don't want PIC in the kernel
	82	# code since it only slows down the whole thing. At some point we might make
	83	# use of global pointer optimizations but their use of $28 conflicts with
	84	# the current pointer optimization.
	85	#
	86	# The DECStation requires an ECOFF kernel for remote booting, other MIPS
	87	# machines may also. Since BFD is incredibly buggy with respect to
	88	# crossformat linking we rely on the elf2ecoff tool for format conversion.
	89	#
	90	cflags-y += -G 0 -mno-abicalls -fno-pic -pipe
	91	cflags-y += -msoft-float
	92	LDFLAGS_vmlinux += -G 0 -static -n -nostdlib
	93	KBUILD_AFLAGS_MODULE += -mlong-calls
	94	KBUILD_CFLAGS_MODULE += -mlong-calls
	95
	96	cflags-y += -ffreestanding
	97
	98	#
	99	# We explicitly add the endianness specifier if needed, this allows
	100	# to compile kernels with a toolchain for the other endianness. We
	101	# carefully avoid to add it redundantly because gcc 3.3/3.4 complains
	102	# when fed the toolchain default!
	103	#
	104	# Certain gcc versions up to gcc 4.1.1 (probably 4.2-subversion as of
	105	# 2006-10-10 don't properly change the predefined symbols if -EB / -EL
	106	# are used, so we kludge that here. A bug has been filed at
	107	# http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29413.
	108	#
	109	undef-all += -UMIPSEB -U_MIPSEB -U__MIPSEB -U__MIPSEB__
	110	undef-all += -UMIPSEL -U_MIPSEL -U__MIPSEL -U__MIPSEL__
	111	predef-be += -DMIPSEB -D_MIPSEB -D__MIPSEB -D__MIPSEB__
	112	predef-le += -DMIPSEL -D_MIPSEL -D__MIPSEL -D__MIPSEL__
	113	cflags-$(CONFIG_CPU_BIG_ENDIAN) += $(shell $(CC) -dumpmachine \|grep -q 'mips.el-.' && echo -EB $(undef-all) $(predef-be))
	114	cflags-$(CONFIG_CPU_LITTLE_ENDIAN) += $(shell $(CC) -dumpmachine \|grep -q 'mips.el-.' \|\| echo -EL $(undef-all) $(predef-le))
	115
	116	cflags-$(CONFIG_CPU_HAS_SMARTMIPS) += $(call cc-option,-msmartmips)
	117	cflags-$(CONFIG_CPU_MICROMIPS) += $(call cc-option,-mmicromips -mno-jals)
	118
	119	cflags-$(CONFIG_SB1XXX_CORELIS) += $(call cc-option,-mno-sched-prolog) \
	120	-fno-omit-frame-pointer
	121
	122	#
	123	# CPU-dependent compiler/assembler options for optimization.
	124	#
	125	cflags-$(CONFIG_CPU_R3000) += -march=r3000
	126	cflags-$(CONFIG_CPU_TX39XX) += -march=r3900
	127	cflags-$(CONFIG_CPU_R6000) += -march=r6000 -Wa,--trap
	128	cflags-$(CONFIG_CPU_R4300) += -march=r4300 -Wa,--trap
	129	cflags-$(CONFIG_CPU_VR41XX) += -march=r4100 -Wa,--trap
	130	cflags-$(CONFIG_CPU_R4X00) += -march=r4600 -Wa,--trap
	131	cflags-$(CONFIG_CPU_TX49XX) += -march=r4600 -Wa,--trap
	132	cflags-$(CONFIG_CPU_MIPS32_R1) += $(call cc-option,-march=mips32,-mips32 -U_MIPS_ISA -D_MIPS_ISA=_MIPS_ISA_MIPS32) \
	133	-Wa,-mips32 -Wa,--trap
	134	cflags-$(CONFIG_CPU_MIPS32_R2) += $(call cc-option,-march=mips32r2,-mips32r2 -U_MIPS_ISA -D_MIPS_ISA=_MIPS_ISA_MIPS32) \
	135	-Wa,-mips32r2 -Wa,--trap
	136	cflags-$(CONFIG_CPU_MIPS64_R1) += $(call cc-option,-march=mips64,-mips64 -U_MIPS_ISA -D_MIPS_ISA=_MIPS_ISA_MIPS64) \
	137	-Wa,-mips64 -Wa,--trap
	138	cflags-$(CONFIG_CPU_MIPS64_R2) += $(call cc-option,-march=mips64r2,-mips64r2 -U_MIPS_ISA -D_MIPS_ISA=_MIPS_ISA_MIPS64) \
	139	-Wa,-mips64r2 -Wa,--trap
	140	cflags-$(CONFIG_CPU_R5000) += -march=r5000 -Wa,--trap
	141	cflags-$(CONFIG_CPU_R5432) += $(call cc-option,-march=r5400,-march=r5000) \
	142	-Wa,--trap
	143	cflags-$(CONFIG_CPU_R5500) += $(call cc-option,-march=r5500,-march=r5000) \
	144	-Wa,--trap
	145	cflags-$(CONFIG_CPU_NEVADA) += $(call cc-option,-march=rm5200,-march=r5000) \
	146	-Wa,--trap
	147	cflags-$(CONFIG_CPU_RM7000) += $(call cc-option,-march=rm7000,-march=r5000) \
	148	-Wa,--trap
	149	cflags-$(CONFIG_CPU_SB1) += $(call cc-option,-march=sb1,-march=r5000) \
	150	-Wa,--trap
	151	cflags-$(CONFIG_CPU_R8000) += -march=r8000 -Wa,--trap
	152	cflags-$(CONFIG_CPU_R10000) += $(call cc-option,-march=r10000,-march=r8000) \
	153	-Wa,--trap
	154	cflags-$(CONFIG_CPU_CAVIUM_OCTEON) += $(call cc-option,-march=octeon) -Wa,--trap
	155	ifeq (,$(findstring march=octeon, $(cflags-$(CONFIG_CPU_CAVIUM_OCTEON))))
	156	cflags-$(CONFIG_CPU_CAVIUM_OCTEON) += -Wa,-march=octeon
	157	endif
	158	cflags-$(CONFIG_CAVIUM_CN63XXP1) += -Wa,-mfix-cn63xxp1
	159	cflags-$(CONFIG_CPU_BMIPS) += -march=mips32 -Wa,-mips32 -Wa,--trap
	160
	161	cflags-$(CONFIG_CPU_R4000_WORKAROUNDS) += $(call cc-option,-mfix-r4000,)
	162	cflags-$(CONFIG_CPU_R4400_WORKAROUNDS) += $(call cc-option,-mfix-r4400,)
	163	cflags-$(CONFIG_CPU_DADDI_WORKAROUNDS) += $(call cc-option,-mno-daddi,)
	164
	165	ifdef CONFIG_CPU_SB1
	166	ifdef CONFIG_SB1_PASS_1_WORKAROUNDS
	167	KBUILD_AFLAGS_MODULE += -msb1-pass1-workarounds
	168	KBUILD_CFLAGS_MODULE += -msb1-pass1-workarounds
	169	endif
	170	endif
	171
	172	#
	173	# Firmware support
	174	#
	175	libs-$(CONFIG_FW_ARC) += arch/mips/fw/arc/
	176	libs-$(CONFIG_FW_CFE) += arch/mips/fw/cfe/
	177	libs-$(CONFIG_FW_SNIPROM) += arch/mips/fw/sni/
	178	libs-y += arch/mips/fw/lib/
	179
	180	#
	181	# Kernel compression
	182	#
	183	ifdef SYS_SUPPORTS_ZBOOT
	184	COMPRESSION_FNAME = vmlinuz
	185	else
	186	COMPRESSION_FNAME = vmlinux
	187	endif
	188
	189	#
	190	# Board-dependent options and extra files
	191	#
	192	include $(srctree)/arch/mips/Kbuild.platforms
	193
	194	ifdef CONFIG_PHYSICAL_START
	195	load-y = $(CONFIG_PHYSICAL_START)
	196	endif
	197
	198	cflags-y += -I$(srctree)/arch/mips/include/asm/mach-generic
	199	drivers-$(CONFIG_PCI) += arch/mips/pci/
	200
	201	#
	202	# Automatically detect the build format. By default we choose
	203	# the elf format according to the load address.
	204	# We can always force a build with a 64-bits symbol format by
	205	# passing 'KBUILD_SYM32=no' option to the make's command line.
	206	#
	207	ifdef CONFIG_64BIT
	208	ifndef KBUILD_SYM32
	209	ifeq ($(shell expr $(load-y) \< 0xffffffff80000000), 0)
	210	KBUILD_SYM32 = y
	211	endif
	212	endif
	213
	214	ifeq ($(KBUILD_SYM32)$(call cc-option-yn,-msym32), yy)
	215	cflags-y += -msym32 -DKBUILD_64BIT_SYM32
	216	else
	217	ifeq ($(CONFIG_CPU_DADDI_WORKAROUNDS), y)
	218	$(error CONFIG_CPU_DADDI_WORKAROUNDS unsupported without -msym32)
	219	endif
	220	endif
	221	endif
	222
	223	KBUILD_AFLAGS += $(cflags-y)
	224	KBUILD_CFLAGS += $(cflags-y)
	225	KBUILD_CPPFLAGS += -DVMLINUX_LOAD_ADDRESS=$(load-y)
	226	KBUILD_CPPFLAGS += -DDATAOFFSET=$(if $(dataoffset-y),$(dataoffset-y),0)
	227
	228	LDFLAGS += -m $(ld-emul)
	229
	230	ifdef CONFIG_CC_STACKPROTECTOR
	231	KBUILD_CFLAGS += -fstack-protector
	232	endif
	233
	234	ifdef CONFIG_MIPS
	235	CHECKFLAGS += $(shell $(CC) $(KBUILD_CFLAGS) -dM -E -x c /dev/null \| \
	236	egrep -vw '__GNUC_(\|MINOR_\|PATCHLEVEL_)_' \| \
	237	sed -e "s/^\#define /-D'/" -e "s/ /'='/" -e "s/$$/'/")
	238	ifdef CONFIG_64BIT
	239	CHECKFLAGS += -m64
	240	endif
	241	endif
	242
	243	OBJCOPYFLAGS += --remove-section=.reginfo
	244
	245	head-y := arch/mips/kernel/head.o
	246
	247	libs-y += arch/mips/lib/
	248
	249	# See arch/mips/Kbuild for content of core part of the kernel
	250	core-y += arch/mips/
	251
	252	drivers-$(CONFIG_OPROFILE) += arch/mips/oprofile/
	253
	254	# suspend and hibernation support
	255	drivers-$(CONFIG_PM) += arch/mips/power/
	256
	257	ifdef CONFIG_LASAT
	258	rom.bin rom.sw: vmlinux
	259	$(Q)$(MAKE) $(build)=arch/mips/lasat/image $@
	260	endif
	261
	262	#
	263	# Some machines like the Indy need 32-bit ELF binaries for booting purposes.
	264	# Other need ECOFF, so we build a 32-bit ELF binary for them which we then
	265	# convert to ECOFF using elf2ecoff.
	266	#
	267	vmlinux.32: vmlinux
	268	$(OBJCOPY) -O $(32bit-bfd) $(OBJCOPYFLAGS) $< $@
	269
	270
	271	#obj-$(CONFIG_KPROBES) += kprobes.o
	272
	273	#
	274	# The 64-bit ELF tools are pretty broken so at this time we generate 64-bit
	275	# ELF files from 32-bit files by conversion.
	276	#
	277	vmlinux.64: vmlinux
	278	$(OBJCOPY) -O $(64bit-bfd) $(OBJCOPYFLAGS) $< $@
	279
	280	all: $(all-y)
	281
	282	# boot
	283	vmlinux.bin vmlinux.ecoff vmlinux.srec: $(vmlinux-32) FORCE
	284	$(Q)$(MAKE) $(build)=arch/mips/boot VMLINUX=$(vmlinux-32) arch/mips/boot/$@
	285
	286	# boot/compressed
	287	vmlinuz vmlinuz.bin vmlinuz.ecoff vmlinuz.srec: $(vmlinux-32) FORCE
	288	$(Q)$(MAKE) $(build)=arch/mips/boot/compressed \
	289	VMLINUX_LOAD_ADDRESS=$(load-y) 32bit-bfd=$(32bit-bfd) $@
	290
	291
	292	CLEAN_FILES += vmlinux.32 vmlinux.64
	293
	294	archprepare:
	295	ifdef CONFIG_MIPS32_N32
	296	@echo ' Checking missing-syscalls for N32'
	297	$(Q)$(MAKE) $(build)=. missing-syscalls missing_syscalls_flags="-mabi=n32"
	298	endif
	299	ifdef CONFIG_MIPS32_O32
	300	@echo ' Checking missing-syscalls for O32'
	301	$(Q)$(MAKE) $(build)=. missing-syscalls missing_syscalls_flags="-mabi=32"
	302	endif
	303
	304	install:
	305	$(Q)install -D -m 755 vmlinux $(INSTALL_PATH)/vmlinux-$(KERNELRELEASE)
	306	ifdef CONFIG_SYS_SUPPORTS_ZBOOT
	307	$(Q)install -D -m 755 vmlinuz $(INSTALL_PATH)/vmlinuz-$(KERNELRELEASE)
	308	endif
	309	$(Q)install -D -m 644 .config $(INSTALL_PATH)/config-$(KERNELRELEASE)
	310	$(Q)install -D -m 644 System.map $(INSTALL_PATH)/System.map-$(KERNELRELEASE)
	311
	312	archclean:
	313	$(Q)$(MAKE) $(clean)=arch/mips/boot
	314	$(Q)$(MAKE) $(clean)=arch/mips/boot/compressed
	315	$(Q)$(MAKE) $(clean)=arch/mips/lasat
	316
	317	define archhelp
	318	echo ' install - install kernel into $(INSTALL_PATH)'
	319	echo ' vmlinux.ecoff - ECOFF boot image'
	320	echo ' vmlinux.bin - Raw binary boot image'
	321	echo ' vmlinux.srec - SREC boot image'
	322	echo ' vmlinuz - Compressed boot(zboot) image'
	323	echo ' vmlinuz.ecoff - ECOFF zboot image'
	324	echo ' vmlinuz.bin - Raw binary zboot image'
	325	echo ' vmlinuz.srec - SREC zboot image'
	326	echo
	327	echo ' These will be default as appropriate for a configured platform.'
	328	endef