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+############################################################################
+# arch/arm/src/armv7-m/Toolchain.defs
+#
+# Copyright (C) 2012 Gregory Nutt. All rights reserved.
+# Author: Gregory Nutt <gnutt@nuttx.org>
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+#
+# 1. Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+# 2. 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.
+# 3. Neither the name NuttX nor the names of its contributors may be
+# used to endorse or promote products derived from this software
+# without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "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
+# COPYRIGHT OWNER OR CONTRIBUTORS 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.
+#
+############################################################################
+
+# Setup for the selected toolchain
+
+#
+# Handle old-style chip-specific toolchain names in the absence of
+# a new-style toolchain specification, force the selection of a single
+# toolchain and allow the selected toolchain to be overridden by a
+# command-line selection.
+#
+
+ifeq ($(filter y, \
+ $(CONFIG_LPC43_ATOLLIC_LITE) \
+ $(CONFIG_STM32_ATOLLIC_LITE) \
+ $(CONFIG_LPC43_ATOLLIC_PRO) \
+ $(CONFIG_STM32_ATOLLIC_PRO) \
+ $(CONFIG_ARMV7M_TOOLCHAIN_ATOLLIC) \
+ ),y)
+ CONFIG_ARMV7M_TOOLCHAIN ?= ATOLLIC
+endif
+ifeq ($(filter y, \
+ $(CONFIG_KINETIS_BUILDROOT) \
+ $(CONFIG_LM3S_BUILDROOT) \
+ $(CONFIG_LPC17_BUILDROOT) \
+ $(CONFIG_LPC43_BUILDROOT) \
+ $(CONFIG_SAM3U_BUILDROOT) \
+ $(CONFIG_STM32_BUILDROOT) \
+ $(CONFIG_ARMV7M_TOOLCHAIN_BUILDROOT) \
+ ),y)
+ CONFIG_ARMV7M_TOOLCHAIN ?= BUILDROOT
+endif
+ifeq ($(filter y, \
+ $(CONFIG_LPC17_CODEREDL) \
+ $(CONFIG_ARMV7M_TOOLCHAIN_CODEREDL) \
+ ),y)
+ CONFIG_ARMV7M_TOOLCHAIN ?= CODEREDL
+endif
+ifeq ($(filter y, \
+ $(CONFIG_LPC17_CODEREDW) \
+ $(CONFIG_LPC43_CODEREDW) \
+ $(CONFIG_ARMV7M_TOOLCHAIN_CODEREDW) \
+ ),y)
+ CONFIG_ARMV7M_TOOLCHAIN ?= CODEREDW
+endif
+ifeq ($(filter y, \
+ $(CONFIG_KINETIS_CODESOURCERYL) \
+ $(CONFIG_LM3S_CODESOURCERYL) \
+ $(CONFIG_LPC17_CODESOURCERYL) \
+ $(CONFIG_LPC43_CODESOURCERYL) \
+ $(CONFIG_SAM3U_CODESOURCERYL) \
+ $(CONFIG_STM32_CODESOURCERYL) \
+ $(CONFIG_ARMV7M_TOOLCHAIN_CODESOURCERYL) \
+ ),y)
+ CONFIG_ARMV7M_TOOLCHAIN ?= CODESOURCERYL
+endif
+ifeq ($(filter y, \
+ $(CONFIG_KINETIS_CODESOURCERYW) \
+ $(CONFIG_LM3S_CODESOURCERYW) \
+ $(CONFIG_LPC17_CODESOURCERYW) \
+ $(CONFIG_LPC43_CODESOURCERYW) \
+ $(CONFIG_SAM3U_CODESOURCERYW) \
+ $(CONFIG_STM32_CODESOURCERYW) \
+ $(CONFIG_ARMV7M_TOOLCHAIN_CODESOURCERYW) \
+ ),y)
+ CONFIG_ARMV7M_TOOLCHAIN ?= CODESOURCERYW
+endif
+ifeq ($(filter y, \
+ $(CONFIG_KINETIS_DEVKITARM) \
+ $(CONFIG_LM3S_DEVKITARM) \
+ $(CONFIG_LPC17_DEVKITARM) \
+ $(CONFIG_LPC43_DEVKITARM) \
+ $(CONFIG_SAM3U_DEVKITARM) \
+ $(CONFIG_STM32_DEVKITARM) \
+ $(CONFIG_ARMV7M_TOOLCHAIN_DEVKITARM) \
+ ),y)
+ CONFIG_ARMV7M_TOOLCHAIN ?= DEVKITARM
+endif
+ifeq ($(filter y, \
+ $(CONFIG_ARMV7M_TOOLCHAIN_GNU_EABI) \
+ ),y)
+ CONFIG_ARMV7M_TOOLCHAIN ?= GNU_EABI
+endif
+ifeq ($(filter y, \
+ $(CONFIG_STM32_RAISONANCE) \
+ $(CONFIG_ARMV7M_TOOLCHAIN_RAISONANCE) \
+ ),y)
+ CONFIG_ARMV7M_TOOLCHAIN ?= RAISONANCE
+endif
+
+#
+# Supported toolchains
+#
+# TODO - It's likely that all of these toolchains now support the
+# CortexM4. Since they are all GCC-based, we could almost
+# certainly simplify this further.
+#
+# Each toolchain definition should set:
+#
+# CROSSDEV The GNU toolchain triple (command prefix)
+# ARCROSSDEV If required, an alternative prefix used when
+# invoking ar and nm.
+# ARCHCPUFLAGS CPU-specific flags selecting the instruction set
+# FPU options, etc.
+# MAXOPTIMIZATION The maximum optimization level that results in
+# reliable code generation.
+#
+
+# Atollic toolchain under Windows
+
+ifeq ($(CONFIG_ARMV7M_TOOLCHAIN),ATOLLIC)
+ CROSSDEV = arm-atollic-eabi-
+ ARCROSSDEV = arm-atollic-eabi-
+ WINTOOL = y
+ ifeq ($(CONFIG_ARCH_CORTEXM4),y)
+ ifeq ($(CONFIG_ARCH_FPU),y)
+ ARCHCPUFLAGS = -mcpu=cortex-m4 -mthumb -march=armv7e-m -mfpu=fpv4-sp-d16 -mfloat-abi=hard
+ else
+ ARCHCPUFLAGS = -mcpu=cortex-m4 -mthumb -march=armv7e-m -mfloat-abi=soft
+ endif
+ else ifeq ($(CONFIG_ARCH_CORTEXM3),y)
+ ARCHCPUFLAGS = -mcpu=cortex-m3 -mthumb -mfloat-abi=soft
+ endif
+endif
+
+# NuttX buildroot under Linux or Cygwin
+
+ifeq ($(CONFIG_ARMV7M_TOOLCHAIN),BUILDROOT)
+ # OABI
+ # CROSSDEV = arm-nuttx-elf-
+ # ARCROSSDEV = arm-nuttx-elf-
+ # ARCHCPUFLAGS = -mtune=cortex-m3 -march=armv7-m -mfloat-abi=soft
+ # EABI
+ CROSSDEV = arm-nuttx-eabi-
+ ARCROSSDEV = arm-nuttx-eabi-
+ ARCHCPUFLAGS = -mcpu=cortex-m3 -mthumb -mfloat-abi=soft
+ MAXOPTIMIZATION = -Os
+endif
+
+# Code Red RedSuite under Linux
+
+ifeq ($(CONFIG_ARMV7M_TOOLCHAIN),CODEREDL)
+ CROSSDEV = arm-none-eabi-
+ ARCROSSDEV = arm-none-eabi-
+ ifeq ($(CONFIG_ARCH_CORTEXM4),y)
+ ifeq ($(CONFIG_ARCH_FPU),y)
+ ARCHCPUFLAGS = -mcpu=cortex-m4 -mthumb -march=armv7e-m -mfpu=fpv4-sp-d16 -mfloat-abi=hard
+ else
+ ARCHCPUFLAGS = -mcpu=cortex-m4 -mthumb -march=armv7e-m -mfloat-abi=soft
+ endif
+ else ifeq ($(CONFIG_ARCH_CORTEXM3),y)
+ ARCHCPUFLAGS = -mcpu=cortex-m3 -mthumb -mfloat-abi=soft
+ endif
+endif
+
+# Code Red RedSuite under Windows
+
+ifeq ($(CONFIG_ARMV7M_TOOLCHAIN),CODEREDW)
+ CROSSDEV = arm-none-eabi-
+ ARCROSSDEV = arm-none-eabi-
+ WINTOOL = y
+ ifeq ($(CONFIG_ARCH_CORTEXM4),y)
+ ifeq ($(CONFIG_ARCH_FPU),y)
+ ARCHCPUFLAGS = -mcpu=cortex-m4 -mthumb -march=armv7e-m -mfpu=fpv4-sp-d16 -mfloat-abi=hard
+ else
+ ARCHCPUFLAGS = -mcpu=cortex-m4 -mthumb -march=armv7e-m -mfloat-abi=soft
+ endif
+ else ifeq ($(CONFIG_ARCH_CORTEXM3),y)
+ ARCHCPUFLAGS = -mcpu=cortex-m3 -mthumb -mfloat-abi=soft
+ endif
+endif
+
+# CodeSourcery under Linux
+
+ifeq ($(CONFIG_ARMV7M_TOOLCHAIN),CODESOURCERYL)
+ CROSSDEV = arm-none-eabi-
+ ARCROSSDEV = arm-none-eabi-
+ ARCHCPUFLAGS = -mcpu=cortex-m3 -mthumb -mfloat-abi=soft
+ MAXOPTIMIZATION = -O2
+endif
+
+# CodeSourcery under Windows
+
+ifeq ($(CONFIG_ARMV7M_TOOLCHAIN),CODESOURCERYW)
+ CROSSDEV = arm-none-eabi-
+ ARCROSSDEV = arm-none-eabi-
+ WINTOOL = y
+ ARCHCPUFLAGS = -mcpu=cortex-m3 -mthumb -mfloat-abi=soft
+endif
+
+# devkitARM under Windows
+
+ifeq ($(CONFIG_ARMV7M_TOOLCHAIN),DEVKITARM)
+ CROSSDEV = arm-eabi-
+ ARCROSSDEV = arm-eabi-
+ WINTOOL = y
+ ARCHCPUFLAGS = -mcpu=cortex-m3 -mthumb -mfloat-abi=soft
+endif
+
+# Generic GNU EABI toolchain on OS X, Linux or any typical Posix system
+
+ifeq ($(CONFIG_ARMV7M_TOOLCHAIN),GNU_EABI)
+ CROSSDEV = arm-none-eabi-
+ ARCROSSDEV = arm-none-eabi-
+ MAXOPTIMIZATION = -O3
+ ifeq ($(CONFIG_ARCH_CORTEXM4),y)
+ ifeq ($(CONFIG_ARCH_FPU),y)
+ ARCHCPUFLAGS = -mcpu=cortex-m4 -mthumb -march=armv7e-m -mfpu=fpv4-sp-d16 -mfloat-abi=hard
+ else
+ ARCHCPUFLAGS = -mcpu=cortex-m4 -mthumb -march=armv7e-m -mfloat-abi=soft
+ endif
+ else ifeq ($(CONFIG_ARCH_CORTEXM3),y)
+ ARCHCPUFLAGS = -mcpu=cortex-m3 -mthumb -mfloat-abi=soft
+ endif
+endif
+
+# Raisonance RIDE7 under Windows
+
+ifeq ($(CONFIG_ARMV7M_TOOLCHAIN),RAISONANCE)
+ CROSSDEV = arm-none-eabi-
+ ARCROSSDEV = arm-none-eabi-
+ WINTOOL = y
+ ARCHCPUFLAGS = -mcpu=cortex-m3 -mthumb -mfloat-abi=soft
+endif