gnumakefile

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#
# Copyright  1990-2008 Sun Microsystems, Inc. All Rights Reserved.
# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER
# 
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License version
# 2 only, as published by the Free Software Foundation. 
# 
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# General Public License version 2 for more details (a copy is
# included at /legal/license.txt). 
# 
# You should have received a copy of the GNU General Public License
# version 2 along with this work; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
# 02110-1301 USA 
# 
# Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
# Clara, CA 95054 or visit www.sun.com if you need additional
# information or have any questions. 
#
# @(#)GNUmakefile	1.6 06/10/10
#

#
# GNUmakefile for linux-arm-generic target. Use this makefile as a template
# for your Linux/ARM platform.
#

# ASM_ARCH_FLAGS: It can usually be left empty unless you are trying to take
# advantage of features the assembler does not support by default. For
# example, add -Wa,-mcpu=iwmmxt if you are trying to use the Intel
# WMMX coprocessor support.
ASM_ARCH_FLAGS		=

# CC_ARCH_FLAGS: If your compiler is properly built for your target device,
# usually you don't need to set CC_ARCH_FLAGS. However, in some cases the
# compiler defaults may not be the defaults that are correct for your device.
# You can add additional compiler options here. Some examples would be:
#
#   -Wa,-mcpu=iwmmxt   -> passed on to asm when WMMX support is used
#   -mcpu=xscale       -> generate code for xscale
#   -msoft-float       -> use soft floating point
#   -mhard-float       -> use hard floating point
#   -mfpu=vfp          -> generate VFP hard float instructions
#   -mfloat-abi=softfp -> Use the VFP softfp abi
#
# It is usually best not set any of the above unless you really know you need
# or want them since they can cause problems. For example, setting -mcpu=xscale
# might seem like the right thing to do for an xscale target. However, there
# was at least one case where -mcpu=xscale was already the default, and
# using -mcpu=xscale caused a change in the ABI and broke things.
CC_ARCH_FLAGS		= 

# CC_ARCH_FLAGS_FDLIB: Mostly used to fix fdlibm correctness problems.
# Some platforms require -ffloat-store or other options in order to
# get proper floating point results for StrictMath, which uses fdlibm.
#
# There's no need to include any flags already specified in CC_ARCH_FLAGS
CC_ARCH_FLAGS_FDLIB	=

# CC_ARCH_FLAGS_LOOP: The interpreter loop is basically a giant switch
# statement. Because of the large amount of code, the C compiler often has
# problems generating good code due to register pressure. Compiling with
# -fno-inline often produces better results, but typically not on ARM.
#
# There's no need to include any flags already specified in CC_ARCH_FLAGS
CC_ARCH_FLAGS_LOOP 	=

# LINK_ARCH_FLAGS: Usually empty. If you need to specify -msoft-float
# or -mhard-float in CC_ARCH_FLAGS, you may need to do the same in
# LINK_ARCH_FLAGS.
LINK_ARCH_FLAGS		=

# LINK_ARCH_LIBS: Used for extra libraries that you need to link with on
# your platform. Usually empty for ARM. On some other platforms -lm is needed.
LINK_ARCH_LIBS		=

# Only enable USE_GCC2 if GCC 3.x or later is *not* being used
USE_GCC2 ?= false

# CVM_DEFINES: Used to add extra compiler defines. This is used to enable
# extra VM features, like supporting Intels WMMX coprocessor and other
# optimizations that are not normally enabled.
CVM_DEFINES +=

# USE_AAPCS is used to tell the source to enable AAPCS calling
# conventions rather than APCS. This is usually needed for MontaVista.
USE_AAPCS ?= false

# Enable the JIT by default. You can always override this on the command line.
CVM_JIT ?= true

# Assume no hardware floating point support by default. If you have hardware
# VFP support, then set CVM_JIT_USE_FP_HARDWARE=true.
CVM_JIT_USE_FP_HARDWARE ?= false

# CVM_TARGET_TOOLS_PREFIX: Used to specify where your target tools are
# located. You can set it on the command line or here. Basically it is
# the entire path leading up to the "gcc" portion of the tool.
#
# For example, if gcc is located at /opt/arm-linux/bin/arm-linux-gcc,
# you would use:
#
#    CVM_TARGET_TOOLS_PREFIX=/opt/arm-linux/bin/arm-linux-
CVM_TARGET_TOOLS_PREFIX=/opt/arm-linux/bin/arm-linux-

#
# Here are a number of common settings you may need or want to use on ARM.
#
# Intel WMMX optimizations support: Do not use on MontaVista. At last
# check there was an known bug that prevented these optimization from
# working properly on MontaVista.
#   ASM_ARCH_FLAGS = -Wa,-mcpu=iwmmxt
#   CC_ARCH_FLAGS  = -Wa,-mcpu=iwmmxt
#   CVM_DEFINES += -DCVM_ARM_HAS_WMMX
#
# AAPCS callng conventions support. Usually needed for MontaVista, and 
# possibly other recent distros.
#   USE_AAPCS ?= true 
#
# Force hard VFP, but with softfp calling conventions:
#    ASM_ARCH_FLAGS     += -mfpu=vfp
#    CC_ARCH_FLAGS      += -mfloat-abi=softfp -mfpu=vfp
#

# Including top.mk is always done last. It will include all the required
# CDC makefiles.
include ../share/top.mk