[mirror_ubuntu-eoan-kernel.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))

# For smartmips configurations, there are hundreds of warnings due to ISA overrides
# in assembly and header files. smartmips is only supported for MIPS32r1 onwards
# and there is no support for 64-bit. Various '.set mips2' or '.set mips3' or
# similar directives in the kernel will spam the build logs with the following warnings:
# Warning: the `smartmips' extension requires MIPS32 revision 1 or greater
# or
# Warning: the 64-bit MIPS architecture does not support the `smartmips' extension
# Pass -Wa,--no-warn to disable all assembler warnings until the kernel code has
# been fixed properly.
cflags-$(CONFIG_CPU_HAS_SMARTMIPS)	+= $(call cc-option,-msmartmips) -Wa,--no-warn
cflags-$(CONFIG_CPU_MICROMIPS) += $(call cc-option,-mmicromips)

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

ifeq ($(CONFIG_CPU_HAS_MSA),y)
toolchain-msa	:= $(call cc-option-yn,-mhard-float -mfp64 -Wa$(comma)-mmsa)
cflags-$(toolchain-msa)		+= -DTOOLCHAIN_SUPPORTS_MSA
endif

#
# 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_SB1)	+= $(call cc-option,-mno-mdmx)
cflags-$(CONFIG_CPU_SB1)	+= $(call cc-option,-mno-mips3d)
cflags-$(CONFIG_CPU_R8000)	+= -march=r8000 -Wa,--trap
cflags-$(CONFIG_CPU_R10000)	+= $(call cc-option,-march=r10000,-march=r8000) \
			-Wa,--trap
cflags-$(CONFIG_CPU_CAVIUM_OCTEON) += $(call cc-option,-march=octeon) -Wa,--trap
ifeq (,$(findstring march=octeon, $(cflags-$(CONFIG_CPU_CAVIUM_OCTEON))))
cflags-$(CONFIG_CPU_CAVIUM_OCTEON) += -Wa,-march=octeon
endif
cflags-$(CONFIG_CAVIUM_CN63XXP1) += -Wa,-mfix-cn63xxp1
cflags-$(CONFIG_CPU_BMIPS)	+= -march=mips32 -Wa,-mips32 -Wa,--trap

cflags-$(CONFIG_CPU_R4000_WORKAROUNDS)	+= $(call cc-option,-mfix-r4000,)
cflags-$(CONFIG_CPU_R4400_WORKAROUNDS)	+= $(call cc-option,-mfix-r4400,)
cflags-$(CONFIG_CPU_DADDI_WORKAROUNDS)	+= $(call cc-option,-mno-daddi,)

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					= $(CONFIG_PHYSICAL_START)
endif
entry-y				= 0x$(shell $(NM) vmlinux 2>/dev/null \
					| grep "\bkernel_entry\b" | cut -f1 -d \ )

cflags-y			+= -I$(srctree)/arch/mips/include/asm/mach-generic
drivers-$(CONFIG_PCI)		+= arch/mips/pci/

#
# Automatically detect the build format. By default we choose
# the elf format according to the load address.
# We can always force a build with a 64-bits symbol format by
# passing 'KBUILD_SYM32=no' option to the make's command line.
#
ifdef CONFIG_64BIT
  ifndef KBUILD_SYM32
    ifeq ($(shell expr $(load-y) \< 0xffffffff80000000), 0)
      KBUILD_SYM32 = y
    endif
  endif

  ifeq ($(KBUILD_SYM32)$(call cc-option-yn,-msym32), yy)
    cflags-y += -msym32 -DKBUILD_64BIT_SYM32
  else
    ifeq ($(CONFIG_CPU_DADDI_WORKAROUNDS), y)
      $(error CONFIG_CPU_DADDI_WORKAROUNDS unsupported without -msym32)
    endif
  endif
endif

KBUILD_AFLAGS	+= $(cflags-y)
KBUILD_CFLAGS	+= $(cflags-y)
KBUILD_CPPFLAGS += -DVMLINUX_LOAD_ADDRESS=$(load-y)
KBUILD_CPPFLAGS += -DDATAOFFSET=$(if $(dataoffset-y),$(dataoffset-y),0)

bootvars-y	= VMLINUX_LOAD_ADDRESS=$(load-y) \
		  VMLINUX_ENTRY_ADDRESS=$(entry-y)

LDFLAGS			+= -m $(ld-emul)

ifdef CONFIG_MIPS
CHECKFLAGS += $(shell $(CC) $(KBUILD_CFLAGS) -dM -E -x c /dev/null | \
	egrep -vw '__GNUC_(|MINOR_|PATCHLEVEL_)_' | \
	sed -e "s/^\#define /-D'/" -e "s/ /'='/" -e "s/$$/'/")
ifdef CONFIG_64BIT
CHECKFLAGS		+= -m64
endif
endif

OBJCOPYFLAGS		+= --remove-section=.reginfo

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

libs-y			+= arch/mips/lib/
libs-y			+= arch/mips/math-emu/

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

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

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

# boot image targets (arch/mips/boot/)
boot-y			:= vmlinux.bin
boot-y			+= vmlinux.ecoff
boot-y			+= vmlinux.srec
ifeq ($(shell expr $(load-y) \< 0xffffffff80000000 2> /dev/null), 0)
boot-y			+= uImage
boot-y			+= uImage.gz
endif

# compressed boot image targets (arch/mips/boot/compressed/)
bootz-y			:= vmlinuz
bootz-y			+= vmlinuz.bin
bootz-y			+= vmlinuz.ecoff
bootz-y			+= vmlinuz.srec

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

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 '  uImage               - U-Boot image'
	echo '  uImage.gz            - U-Boot image (gzip)'
	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) $(predef-le))
	115
	116	# For smartmips configurations, there are hundreds of warnings due to ISA overrides
	117	# in assembly and header files. smartmips is only supported for MIPS32r1 onwards
	118	# and there is no support for 64-bit. Various '.set mips2' or '.set mips3' or
	119	# similar directives in the kernel will spam the build logs with the following warnings:
	120	# Warning: the `smartmips' extension requires MIPS32 revision 1 or greater
	121	# or
	122	# Warning: the 64-bit MIPS architecture does not support the `smartmips' extension
	123	# Pass -Wa,--no-warn to disable all assembler warnings until the kernel code has
	124	# been fixed properly.
	125	cflags-$(CONFIG_CPU_HAS_SMARTMIPS) += $(call cc-option,-msmartmips) -Wa,--no-warn
	126	cflags-$(CONFIG_CPU_MICROMIPS) += $(call cc-option,-mmicromips)
	127
	128	cflags-$(CONFIG_SB1XXX_CORELIS) += $(call cc-option,-mno-sched-prolog) \
	129	-fno-omit-frame-pointer
	130
	131	ifeq ($(CONFIG_CPU_HAS_MSA),y)
	132	toolchain-msa := $(call cc-option-yn,-mhard-float -mfp64 -Wa$(comma)-mmsa)
	133	cflags-$(toolchain-msa) += -DTOOLCHAIN_SUPPORTS_MSA
	134	endif
	135
	136	#
	137	# CPU-dependent compiler/assembler options for optimization.
	138	#
	139	cflags-$(CONFIG_CPU_R3000) += -march=r3000
	140	cflags-$(CONFIG_CPU_TX39XX) += -march=r3900
	141	cflags-$(CONFIG_CPU_R6000) += -march=r6000 -Wa,--trap
	142	cflags-$(CONFIG_CPU_R4300) += -march=r4300 -Wa,--trap
	143	cflags-$(CONFIG_CPU_VR41XX) += -march=r4100 -Wa,--trap
	144	cflags-$(CONFIG_CPU_R4X00) += -march=r4600 -Wa,--trap
	145	cflags-$(CONFIG_CPU_TX49XX) += -march=r4600 -Wa,--trap
	146	cflags-$(CONFIG_CPU_MIPS32_R1) += $(call cc-option,-march=mips32,-mips32 -U_MIPS_ISA -D_MIPS_ISA=_MIPS_ISA_MIPS32) \
	147	-Wa,-mips32 -Wa,--trap
	148	cflags-$(CONFIG_CPU_MIPS32_R2) += $(call cc-option,-march=mips32r2,-mips32r2 -U_MIPS_ISA -D_MIPS_ISA=_MIPS_ISA_MIPS32) \
	149	-Wa,-mips32r2 -Wa,--trap
	150	cflags-$(CONFIG_CPU_MIPS64_R1) += $(call cc-option,-march=mips64,-mips64 -U_MIPS_ISA -D_MIPS_ISA=_MIPS_ISA_MIPS64) \
	151	-Wa,-mips64 -Wa,--trap
	152	cflags-$(CONFIG_CPU_MIPS64_R2) += $(call cc-option,-march=mips64r2,-mips64r2 -U_MIPS_ISA -D_MIPS_ISA=_MIPS_ISA_MIPS64) \
	153	-Wa,-mips64r2 -Wa,--trap
	154	cflags-$(CONFIG_CPU_R5000) += -march=r5000 -Wa,--trap
	155	cflags-$(CONFIG_CPU_R5432) += $(call cc-option,-march=r5400,-march=r5000) \
	156	-Wa,--trap
	157	cflags-$(CONFIG_CPU_R5500) += $(call cc-option,-march=r5500,-march=r5000) \
	158	-Wa,--trap
	159	cflags-$(CONFIG_CPU_NEVADA) += $(call cc-option,-march=rm5200,-march=r5000) \
	160	-Wa,--trap
	161	cflags-$(CONFIG_CPU_RM7000) += $(call cc-option,-march=rm7000,-march=r5000) \
	162	-Wa,--trap
	163	cflags-$(CONFIG_CPU_SB1) += $(call cc-option,-march=sb1,-march=r5000) \
	164	-Wa,--trap
	165	cflags-$(CONFIG_CPU_SB1) += $(call cc-option,-mno-mdmx)
	166	cflags-$(CONFIG_CPU_SB1) += $(call cc-option,-mno-mips3d)
	167	cflags-$(CONFIG_CPU_R8000) += -march=r8000 -Wa,--trap
	168	cflags-$(CONFIG_CPU_R10000) += $(call cc-option,-march=r10000,-march=r8000) \
	169	-Wa,--trap
	170	cflags-$(CONFIG_CPU_CAVIUM_OCTEON) += $(call cc-option,-march=octeon) -Wa,--trap
	171	ifeq (,$(findstring march=octeon, $(cflags-$(CONFIG_CPU_CAVIUM_OCTEON))))
	172	cflags-$(CONFIG_CPU_CAVIUM_OCTEON) += -Wa,-march=octeon
	173	endif
	174	cflags-$(CONFIG_CAVIUM_CN63XXP1) += -Wa,-mfix-cn63xxp1
	175	cflags-$(CONFIG_CPU_BMIPS) += -march=mips32 -Wa,-mips32 -Wa,--trap
	176
	177	cflags-$(CONFIG_CPU_R4000_WORKAROUNDS) += $(call cc-option,-mfix-r4000,)
	178	cflags-$(CONFIG_CPU_R4400_WORKAROUNDS) += $(call cc-option,-mfix-r4400,)
	179	cflags-$(CONFIG_CPU_DADDI_WORKAROUNDS) += $(call cc-option,-mno-daddi,)
	180
	181	ifdef CONFIG_CPU_SB1
	182	ifdef CONFIG_SB1_PASS_1_WORKAROUNDS
	183	KBUILD_AFLAGS_MODULE += -msb1-pass1-workarounds
	184	KBUILD_CFLAGS_MODULE += -msb1-pass1-workarounds
	185	endif
	186	endif
	187
	188	#
	189	# Firmware support
	190	#
	191	libs-$(CONFIG_FW_ARC) += arch/mips/fw/arc/
	192	libs-$(CONFIG_FW_CFE) += arch/mips/fw/cfe/
	193	libs-$(CONFIG_FW_SNIPROM) += arch/mips/fw/sni/
	194	libs-y += arch/mips/fw/lib/
	195
	196	#
	197	# Kernel compression
	198	#
	199	ifdef SYS_SUPPORTS_ZBOOT
	200	COMPRESSION_FNAME = vmlinuz
	201	else
	202	COMPRESSION_FNAME = vmlinux
	203	endif
	204
	205	#
	206	# Board-dependent options and extra files
	207	#
	208	include $(srctree)/arch/mips/Kbuild.platforms
	209
	210	ifdef CONFIG_PHYSICAL_START
	211	load-y = $(CONFIG_PHYSICAL_START)
	212	endif
	213	entry-y = 0x$(shell $(NM) vmlinux 2>/dev/null \
	214	\| grep "\bkernel_entry\b" \| cut -f1 -d \ )
	215
	216	cflags-y += -I$(srctree)/arch/mips/include/asm/mach-generic
	217	drivers-$(CONFIG_PCI) += arch/mips/pci/
	218
	219	#
	220	# Automatically detect the build format. By default we choose
	221	# the elf format according to the load address.
	222	# We can always force a build with a 64-bits symbol format by
	223	# passing 'KBUILD_SYM32=no' option to the make's command line.
	224	#
	225	ifdef CONFIG_64BIT
	226	ifndef KBUILD_SYM32
	227	ifeq ($(shell expr $(load-y) \< 0xffffffff80000000), 0)
	228	KBUILD_SYM32 = y
	229	endif
	230	endif
	231
	232	ifeq ($(KBUILD_SYM32)$(call cc-option-yn,-msym32), yy)
	233	cflags-y += -msym32 -DKBUILD_64BIT_SYM32
	234	else
	235	ifeq ($(CONFIG_CPU_DADDI_WORKAROUNDS), y)
	236	$(error CONFIG_CPU_DADDI_WORKAROUNDS unsupported without -msym32)
	237	endif
	238	endif
	239	endif
	240
	241	KBUILD_AFLAGS += $(cflags-y)
	242	KBUILD_CFLAGS += $(cflags-y)
	243	KBUILD_CPPFLAGS += -DVMLINUX_LOAD_ADDRESS=$(load-y)
	244	KBUILD_CPPFLAGS += -DDATAOFFSET=$(if $(dataoffset-y),$(dataoffset-y),0)
	245
	246	bootvars-y = VMLINUX_LOAD_ADDRESS=$(load-y) \
	247	VMLINUX_ENTRY_ADDRESS=$(entry-y)
	248
	249	LDFLAGS += -m $(ld-emul)
	250
	251	ifdef CONFIG_MIPS
	252	CHECKFLAGS += $(shell $(CC) $(KBUILD_CFLAGS) -dM -E -x c /dev/null \| \
	253	egrep -vw '__GNUC_(\|MINOR_\|PATCHLEVEL_)_' \| \
	254	sed -e "s/^\#define /-D'/" -e "s/ /'='/" -e "s/$$/'/")
	255	ifdef CONFIG_64BIT
	256	CHECKFLAGS += -m64
	257	endif
	258	endif
	259
	260	OBJCOPYFLAGS += --remove-section=.reginfo
	261
	262	head-y := arch/mips/kernel/head.o
	263
	264	libs-y += arch/mips/lib/
	265	libs-y += arch/mips/math-emu/
	266
	267	# See arch/mips/Kbuild for content of core part of the kernel
	268	core-y += arch/mips/
	269
	270	drivers-$(CONFIG_OPROFILE) += arch/mips/oprofile/
	271
	272	# suspend and hibernation support
	273	drivers-$(CONFIG_PM) += arch/mips/power/
	274
	275	# boot image targets (arch/mips/boot/)
	276	boot-y := vmlinux.bin
	277	boot-y += vmlinux.ecoff
	278	boot-y += vmlinux.srec
	279	ifeq ($(shell expr $(load-y) \< 0xffffffff80000000 2> /dev/null), 0)
	280	boot-y += uImage
	281	boot-y += uImage.gz
	282	endif
	283
	284	# compressed boot image targets (arch/mips/boot/compressed/)
	285	bootz-y := vmlinuz
	286	bootz-y += vmlinuz.bin
	287	bootz-y += vmlinuz.ecoff
	288	bootz-y += vmlinuz.srec
	289
	290	ifdef CONFIG_LASAT
	291	rom.bin rom.sw: vmlinux
	292	$(Q)$(MAKE) $(build)=arch/mips/lasat/image \
	293	$(bootvars-y) $@
	294	endif
	295
	296	#
	297	# Some machines like the Indy need 32-bit ELF binaries for booting purposes.
	298	# Other need ECOFF, so we build a 32-bit ELF binary for them which we then
	299	# convert to ECOFF using elf2ecoff.
	300	#
	301	quiet_cmd_32 = OBJCOPY $@
	302	cmd_32 = $(OBJCOPY) -O $(32bit-bfd) $(OBJCOPYFLAGS) $< $@
	303	vmlinux.32: vmlinux
	304	$(call cmd,32)
	305
	306	#
	307	# The 64-bit ELF tools are pretty broken so at this time we generate 64-bit
	308	# ELF files from 32-bit files by conversion.
	309	#
	310	quiet_cmd_64 = OBJCOPY $@
	311	cmd_64 = $(OBJCOPY) -O $(64bit-bfd) $(OBJCOPYFLAGS) $< $@
	312	vmlinux.64: vmlinux
	313	$(call cmd,64)
	314
	315	all: $(all-y)
	316
	317	# boot
	318	$(boot-y): $(vmlinux-32) FORCE
	319	$(Q)$(MAKE) $(build)=arch/mips/boot VMLINUX=$(vmlinux-32) \
	320	$(bootvars-y) arch/mips/boot/$@
	321
	322	ifdef CONFIG_SYS_SUPPORTS_ZBOOT
	323	# boot/compressed
	324	$(bootz-y): $(vmlinux-32) FORCE
	325	$(Q)$(MAKE) $(build)=arch/mips/boot/compressed \
	326	$(bootvars-y) 32bit-bfd=$(32bit-bfd) $@
	327	else
	328	vmlinuz: FORCE
	329	@echo ' CONFIG_SYS_SUPPORTS_ZBOOT is not enabled'
	330	/bin/false
	331	endif
	332
	333
	334	CLEAN_FILES += vmlinux.32 vmlinux.64
	335
	336	archprepare:
	337	ifdef CONFIG_MIPS32_N32
	338	@echo ' Checking missing-syscalls for N32'
	339	$(Q)$(MAKE) $(build)=. missing-syscalls missing_syscalls_flags="-mabi=n32"
	340	endif
	341	ifdef CONFIG_MIPS32_O32
	342	@echo ' Checking missing-syscalls for O32'
	343	$(Q)$(MAKE) $(build)=. missing-syscalls missing_syscalls_flags="-mabi=32"
	344	endif
	345
	346	install:
	347	$(Q)install -D -m 755 vmlinux $(INSTALL_PATH)/vmlinux-$(KERNELRELEASE)
	348	ifdef CONFIG_SYS_SUPPORTS_ZBOOT
	349	$(Q)install -D -m 755 vmlinuz $(INSTALL_PATH)/vmlinuz-$(KERNELRELEASE)
	350	endif
	351	$(Q)install -D -m 644 .config $(INSTALL_PATH)/config-$(KERNELRELEASE)
	352	$(Q)install -D -m 644 System.map $(INSTALL_PATH)/System.map-$(KERNELRELEASE)
	353
	354	archclean:
	355	$(Q)$(MAKE) $(clean)=arch/mips/boot
	356	$(Q)$(MAKE) $(clean)=arch/mips/boot/compressed
	357	$(Q)$(MAKE) $(clean)=arch/mips/lasat
	358
	359	define archhelp
	360	echo ' install - install kernel into $(INSTALL_PATH)'
	361	echo ' vmlinux.ecoff - ECOFF boot image'
	362	echo ' vmlinux.bin - Raw binary boot image'
	363	echo ' vmlinux.srec - SREC boot image'
	364	echo ' vmlinuz - Compressed boot(zboot) image'
	365	echo ' vmlinuz.ecoff - ECOFF zboot image'
	366	echo ' vmlinuz.bin - Raw binary zboot image'
	367	echo ' vmlinuz.srec - SREC zboot image'
	368	echo ' uImage - U-Boot image'
	369	echo ' uImage.gz - U-Boot image (gzip)'
	370	echo
	371	echo ' These will be default as appropriate for a configured platform.'
	372	endef