# defs.arm - ARM specific definitions shared by all toolchains
#
# Copyright (c) 2001, 2003, 2005, 2006-2008, 2010 Wind River Systems, Inc.
#
# The right to copy, distribute or otherwise make use of this software
# may be licensed only pursuant to the terms of an applicable Wind River
# license agreement.
#
# modification history
# --------------------
# 01m,12nov10,jdw  Fix HW/SW floating point support (WIND00241091)
# 01l,13jul10,fao  add be8 support.
# 01k,19sep08,pee  fixing FP for TC.
# 01j,20aug08,mze  set ENDIAN to little if not defaulted
# 01i,19aug08,mze  TOOL changes
# 01h,24jun08,pee  VSB adaptation.
# 01g,27mar08,m_h  Add MMUless ARM7tdmi variant
# 01f,14mar07,pee  added generic option support and LIB_ROOT support
# 01e,27jun06,pee  added TC_INFO for osconfig
# 01e,20jun06,jb  Remove 920t as variant
# 01d,31jan06,m_h  Manzano Variant
# 01c,28nov05,jb   Adding 920 as a CPU Variant
# 01b,10dec03,yvp  Added ABI_SPEC.
# 01a,18dec01,to   written
#
# DESCRIPTION
# This file contains ARM specific definitions and flags to be
# shared by all toolchains.
#
# NOTE
# The file name comes from defs.$(VX_CPU_FAMILY)
#

TOOLENV		= arm
VX_CPU_FAMILY	= arm
ARCH_DIR	= arm
ABI_SPEC        = arm

ROM_ENTRY	= romInit
USR_ENTRY	= usrInit
SYS_ENTRY	= sysInit

BUILD_ENDIAN_SUFFIX_big = be
BUILD_ENDIAN_SUFFIX_be8 = be8
BUILD_ENDIAN_SUFFIX_little =

BUILD_FP_PREFIX_soft =
_WRS_CONFIG_FP ?= soft

# tool may already be stripped but ENDIAN may not be set
_WRS_CONFIG_ENDIAN ?= little

ifeq ($(findstring be,$(TOOL)),be)  
    override _WRS_CONFIG_ENDIAN = big
    export _WRS_CONFIG_ENDIAN
    ifneq  ($(findstring be,$(TOOL_SPECIFIC_DIR)),be)
        override TOOL_SPECIFIC_DIR = $(TOOL_FAMILY)be
    endif
    ifneq  ($(findstring be,$(TOOL_COMMON_DIR)),be)
        override TOOL_COMMON_DIR = commonbe
    endif
endif

ifeq ($(findstring be8,$(TOOL)),be8)  
    override _WRS_CONFIG_ENDIAN = be8
    export _WRS_CONFIG_ENDIAN
    ifneq  ($(findstring be8,$(TOOL_SPECIFIC_DIR)),be8)
        override TOOL_SPECIFIC_DIR = $(TOOL_FAMILY)be8
    endif
    ifneq  ($(findstring be8,$(TOOL_COMMON_DIR)),be8)
        override TOOL_COMMON_DIR = commonbe8
    endif
endif


ifeq ($(_WRS_CONFIG_ENDIAN),big)
    # definitions for big endian
    DEFINE_CC	+= -DARMEB
    OBJCOPY_OLD_OMF	= -O coff-arm-big
else
    ifeq ($(_WRS_CONFIG_ENDIAN),be8)
        # definitions for be8 endian
        DEFINE_CC	+= -DARMEB -DARMBE8
        OBJCOPY_OLD_OMF	= -O coff-arm-big
    else
        # definitions for little endian
        DEFINE_CC	+= -DARMEL
        OBJCOPY_OLD_OMF	= -O coff-arm-little
    endif
endif

LD_LINK_PATH_EXTRA += \
        -L$(LIB_ROOT)/$(VX_CPU_FAMILY)$(ARCH_OPTION_SUFFIX)/$(CPU)$(CPU_OPTION_SUFFIX)/$(TOOL_SPECIFIC_DIR)$(CPU_VARIANT)$(MINOR_OPTION_SUFFIX) \
        -L$(LIB_ROOT)/$(VX_CPU_FAMILY)$(ARCH_OPTION_SUFFIX)/$(CPU)$(CPU_OPTION_SUFFIX)/$(TOOL_COMMON_DIR)$(CPU_VARIANT)$(MINOR_OPTION_SUFFIX)

## CPU variants builds
#
# For CPU variants builds, the name of the directory(ies) where archives are
# installed is appended with a unique tag defined by LIB_DIR_TAG. The make
# variable CPU_VARIANT_LIST define the whole list of these CPU variant tags
# and should be updated everytime a new CPU variant build is introduced. For
# instance:
#   CPU_VARIANT_LIST = _cpuVariant1 _cpuVariant2 _cpuVariant3

CPU_VARIANT_LIST    =   _manzano _armarch4mmuless

# Each CPU variant build must define the following variables:
#
#   - VX_ARCHIVE_LIST$(LIB_DIR_TAG): this is the list of archive(s) to
#     build for this CPU variant. Note that $(LIB_DIR_TAG) must be equal
#     to one of the item defined in CPU_VARIANT_LIST. For instance:
#       VX_ARCHIVE_LIST_cpuVariant1 = libarch.a libdrv.a
#
#   - CPU_VARIANT_CPU_TOOL_LIST$(LIB_DIR_TAG): this is the list of
#     CPU/TOOL combination(s) for which the CPU variant build must be
#     run. For instance:
#       CPU_VARIANT_CPU_TOOL_LIST_cpuVariant2 = MIPS32diab MIPS64diab
#
# NOTE: CPU variant build(s) are kicked off by the default build rule
# in target/h/make/rules.library.

VX_ARCHIVE_LIST_manzano = libarch.a

CPU_VARIANT_CPU_TOOL_LIST_manzano = XSCALEdiab XSCALEdiabbe

ifeq ($(LIB_DIR_TAG),_manzano)
        DEFINE_CC += -DARMCPUMANZANO
endif

VX_ARCHIVE_LIST_armmmuless = libarch.a

CPU_VARIANT_CPU_TOOL_LIST_armarch4mmuless = ARMARCH4diab ARMARCH4diabbe

ifeq ($(LIB_DIR_TAG),_armarch4mmuless)
        DEFINE_CC += -DARMCPUMMULESS
endif

ifeq ($(TC_INFO),TRUE)
    FP ?= soft
    ifeq ($(findstring be, $(TOOL)),be)
        ENDIAN = big
    else
        ENDIAN = little
    endif
    ifeq ($(findstring be8, $(TOOL)),be8)
        ENDIAN = be8
    endif
endif


# end of defs.arm