8417b4726b
This reverts commit d9a5b92c1a306a70df52d50a02a80dc8ef20bf0d. Revert "arch/arm: Remove -march and -mtune" This reverts commit b8e99cf12f3a287311a2d341f285c71a5da3e4d4.
166 lines
4.6 KiB
Plaintext
166 lines
4.6 KiB
Plaintext
############################################################################
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# arch/arm/src/armv7-m/Toolchain.defs
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#
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# Licensed to the Apache Software Foundation (ASF) under one or more
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# contributor license agreements. See the NOTICE file distributed with
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# this work for additional information regarding copyright ownership. The
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# ASF licenses this file to you under the Apache License, Version 2.0 (the
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# "License"); you may not use this file except in compliance with the
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# License. You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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#
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############################################################################
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# Setup for the selected toolchain
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#
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# Handle old-style chip-specific toolchain names in the absence of
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# a new-style toolchain specification, force the selection of a single
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# toolchain and allow the selected toolchain to be overridden by a
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# command-line selection.
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#
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ifeq ($(filter y, \
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$(CONFIG_ARMV7M_TOOLCHAIN_BUILDROOT) \
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),y)
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CONFIG_ARMV7M_TOOLCHAIN ?= BUILDROOT
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endif
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ifeq ($(filter y, \
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$(CONFIG_ARMV7M_TOOLCHAIN_GNU_EABIL) \
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),y)
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CONFIG_ARMV7M_TOOLCHAIN ?= GNU_EABI
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endif
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ifeq ($(filter y, \
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$(CONFIG_ARMV7M_TOOLCHAIN_GNU_EABIW) \
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),y)
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CONFIG_ARMV7M_TOOLCHAIN ?= GNU_EABI
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endif
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ifeq ($(filter y, \
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$(CONFIG_ARMV7M_TOOLCHAIN_CLANGL) \
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),y)
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CONFIG_ARMV7M_TOOLCHAIN ?= CLANG
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endif
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ifeq ($(filter y, \
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$(CONFIG_ARMV7M_TOOLCHAIN_CLANGW) \
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),y)
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CONFIG_ARMV7M_TOOLCHAIN ?= CLANG
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endif
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#
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# Supported toolchains
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#
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# Each toolchain definition should set:
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#
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# CROSSDEV The GNU toolchain triple (command prefix)
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# ARCHCPUFLAGS CPU-specific flags selecting the instruction set
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# FPU options, etc.
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# MAXOPTIMIZATION The maximum optimization level that results in
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# reliable code generation.
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#
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ifeq ($(CONFIG_DEBUG_CUSTOMOPT),y)
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MAXOPTIMIZATION := $(CONFIG_DEBUG_OPTLEVEL)
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else
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MAXOPTIMIZATION ?= -Os
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endif
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# Parametrization for ARCHCPUFLAGS
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ifeq ($(CONFIG_ARCH_CORTEXM4),y)
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TOOLCHAIN_ARM7EM := y
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TOOLCHAIN_MCPU := -mcpu=cortex-m4
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TOOLCHAIN_MTUNE := -mtune=cortex-m4
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TOOLCHAIN_MARCH := -march=armv7e-m
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ifeq ($(CONFIG_ARCH_FPU),y)
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TOOLCHAIN_MFLOAT := -mfpu=fpv4-sp-d16 -mfloat-abi=hard
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else
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TOOLCHAIN_MFLOAT := -mfloat-abi=soft
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endif
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else ifeq ($(CONFIG_ARCH_CORTEXM7),y)
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TOOLCHAIN_ARM7EM := y
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TOOLCHAIN_MCPU := -mcpu=cortex-m7
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TOOLCHAIN_MTUNE := -mtune=cortex-m7
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TOOLCHAIN_MARCH := -march=armv7e-m
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ifeq ($(CONFIG_ARCH_FPU),y)
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ifeq ($(CONFIG_ARCH_DPFPU),y)
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TOOLCHAIN_MFLOAT := -mfpu=fpv5-d16 -mfloat-abi=hard
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else
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TOOLCHAIN_MFLOAT := -mfpu=fpv5-sp-d16 -mfloat-abi=hard
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endif
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else
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TOOLCHAIN_MFLOAT := -mfloat-abi=soft
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endif
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else # ifeq ($(CONFIG_ARCH_CORTEXM3),y)
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TOOLCHAIN_ARM7EM := n
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TOOLCHAIN_MCPU := -mcpu=cortex-m3
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TOOLCHAIN_MTUNE := -mtune=cortex-m3
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TOOLCHAIN_MARCH := -march=armv7-m
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TOOLCHAIN_MFLOAT := -mfloat-abi=soft
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endif
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# NuttX buildroot under Linux or Cygwin
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ifeq ($(CONFIG_ARMV7M_TOOLCHAIN),BUILDROOT)
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ifeq ($(CONFIG_ARMV7M_OABI_TOOLCHAIN),y)
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CROSSDEV ?= arm-nuttx-elf-
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ARCHCPUFLAGS = $(TOOLCHAIN_MCPU) $(TOOLCHAIN_MFLOAT)
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else
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CROSSDEV ?= arm-nuttx-eabi-
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ARCHCPUFLAGS = $(TOOLCHAIN_MCPU) -mthumb $(TOOLCHAIN_MFLOAT)
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endif
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endif
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# Generic GNU EABI toolchain
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ifeq ($(CONFIG_ARMV7M_TOOLCHAIN),GNU_EABI)
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CROSSDEV ?= arm-none-eabi-
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ARCHCPUFLAGS = $(TOOLCHAIN_MCPU) -mthumb $(TOOLCHAIN_MFLOAT)
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endif
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# Clang toolchain
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ifeq ($(CONFIG_ARMV7M_TOOLCHAIN),CLANG)
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CROSSDEV ?= arm-none-eabi-
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ARCHCPUFLAGS = -target arm-none-eabi $(TOOLCHAIN_MCPU) $(TOOLCHAIN_MFLOAT)
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CC = clang
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CXX = clang++
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CPP = clang -E -P -x c
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else
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CC = $(CROSSDEV)gcc
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CXX = $(CROSSDEV)g++
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CPP = $(CROSSDEV)gcc -E -P -x c
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endif
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LD = $(CROSSDEV)ld
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STRIP = $(CROSSDEV)strip --strip-unneeded
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AR = $(CROSSDEV)ar rcs
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NM = $(CROSSDEV)nm
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OBJCOPY = $(CROSSDEV)objcopy
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OBJDUMP = $(CROSSDEV)objdump
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# Add the builtin library
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EXTRA_LIBS += -lgcc
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EXTRA_LIBPATHS += -L "${shell dirname "`$(CC) $(ARCHCPUFLAGS) --print-libgcc-file-name`"}"
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ifneq ($(CONFIG_LIBM),y)
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EXTRA_LIBS += -lm
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EXTRA_LIBPATHS += -L "${shell dirname "`$(CC) $(ARCHCPUFLAGS) --print-file-name=libm.a`"}"
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endif
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ifeq ($(CONFIG_LIBSUPCXX),y)
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EXTRA_LIBS += -lsupc++
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EXTRA_LIBPATHS += -L "${shell dirname "`$(CC) $(ARCHCPUFLAGS) --print-file-name=libsupc++.a`"}"
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endif
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