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#

# Copyright (c) 2005 Martin Decky

# All rights reserved.

#

# Redistribution and use in source and binary forms, with or without

# modification, are permitted provided that the following conditions

# are met:

#

# - Redistributions of source code must retain the above copyright

#   notice, this list of conditions and the following disclaimer.

# - Redistributions in binary form must reproduce the above copyright

#   notice, this list of conditions and the following disclaimer in the

#   documentation and/or other materials provided with the distribution.

# - The name of the author may not be used to endorse or promote products

#   derived from this software without specific prior written permission.

#

# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR

# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES

# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.

# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,

# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT

# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,

# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY

# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF

# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

#

## Toolchain configuration

#

BFD_ARCH = mips

TARGET = mipsel-linux-gnu

TOOLCHAIN_DIR = /usr/local/mipsel

KERNEL_LOAD_ADDRESS = 0x80100000

INIT_ADDRESS = 0x81000000

INIT_SIZE = 262144

GCC_CFLAGS += -mno-abicalls -G 0 -fno-zero-initialized-in-bss

DEFS += -D__32_BITS__ -DMACHINE=$(MACHINE) -DKERNEL_LOAD_ADDRESS=${KERNEL_LOAD_ADDRESS} -DINIT_ADDRESS=${INIT_ADDRESS} -DINIT_SIZE=${INIT_SIZE}

## Compile with hierarchical page tables support.

#

CONFIG_PAGE_PT = y

DEFS += -DCONFIG_PAGE_PT

## Compile with support for address space identifiers.

#

CONFIG_ASID = y

CONFIG_ASID_FIFO = y

## Accepted MACHINEs

#

ifeq ($(MACHINE),indy)

	# GCC 4.0.1 compiled for mipsEL has problems compiling in 

	# BigEndian mode with the swl/swr/lwl/lwr instructions.

	# We have to compile it with mips-sgi-irix5 to get it right.

	BFD_NAME = elf32-bigmips

	BFD = ecoff-bigmips --impure

	TARGET = mips-sgi-irix5

	TOOLCHAIN_DIR = /usr/local/mips/bin

	KERNEL_LOAD_ADDRESS = 0x88002000

	GCC_CFLAGS += -EB -DBIG_ENDIAN -DARCH_HAS_FPU -march=r4600

	INIT_ADDRESS = 0

	INIT_SIZE = 0

endif

ifeq ($(MACHINE),lgxemul)

	BFD_NAME = elf32-tradlittlemips

	BFD = binary

	GCC_CFLAGS += -DFB_INVERT_ENDIAN -DARCH_HAS_FPU -mips3

endif

ifeq ($(MACHINE),bgxemul)

	BFD_NAME = elf32-bigmips

	BFD = ecoff-bigmips

	TARGET = mips-sgi-irix5

	TOOLCHAIN_DIR = /usr/local/mips/bin

	GCC_CFLAGS += -EB -DBIG_ENDIAN -DARCH_HAS_FPU -mips3

	INIT_ADDRESS = 0x81800000

endif

ifeq ($(MACHINE),simics)

	# SIMICS 4kc emulation is broken, although for instructions

	# that do not bother us

	BFD_NAME = elf32-tradlittlemips

	BFD = elf32-tradlittlemips

	GCC_CFLAGS += -mhard-float -mips3 -DTLBCNT=16

	TLBCNT = 16

endif

ifeq ($(MACHINE),msim)

	BFD_NAME = elf32-tradlittlemips

	BFD = binary

	GCC_CFLAGS += -mhard-float -mips3

endif

## Compile with support for software integer division.

#

CONFIG_SOFTINT = y

ARCH_SOURCES = \

	arch/$(ARCH)/src/start.S \

	arch/$(ARCH)/src/context.S \

	arch/$(ARCH)/src/panic.S \

	arch/$(ARCH)/src/mips32.c \

	arch/$(ARCH)/src/dummy.S \

	arch/$(ARCH)/src/console.c \

	arch/$(ARCH)/src/asm.S \

	arch/$(ARCH)/src/exception.c \

	arch/$(ARCH)/src/interrupt.c \

	arch/$(ARCH)/src/cache.c \

	arch/$(ARCH)/src/debugger.c \

	arch/$(ARCH)/src/cpu/cpu.c \

	arch/$(ARCH)/src/mm/frame.c \

	arch/$(ARCH)/src/mm/page.c \

	arch/$(ARCH)/src/mm/tlb.c \

	arch/$(ARCH)/src/mm/as.c \

	arch/$(ARCH)/src/fpu_context.c \

	arch/$(ARCH)/src/ddi/ddi.c \

	arch/$(ARCH)/src/drivers/arc.c \

	arch/$(ARCH)/src/drivers/msim.c \

	arch/$(ARCH)/src/drivers/serial.c