Add support for CodeSourcery and devkitARM toolchains
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@1832 42af7a65-404d-4744-a932-0658087f49c3
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patacongo
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@ -16,12 +16,34 @@ Development Environment
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environment because the Luminary FLASH programming application was used for
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writing to FLASH and this application works only under Windows.
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Toolchain
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^^^^^^^^^
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GNU Toolchain Options
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^^^^^^^^^^^^^^^^^^^^^
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The NuttX make system has been modified to support the following different
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toolchain options.
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1. The CodeSourcery GNU toolchain,
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2. The devkitARM GNU toolchain, or
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3. The NuttX buildroot Toolchain (see below).
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All testing has been conducted using the NuttX buildroot toolchain. However,
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the make system is setup to default to use the devkitARM toolchain. To use
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the CodeSource GNU toolchain, you simply need to build the system as follows:
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make # Will build for the devkitARM toolchain
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make CROSSDEV=arm-eabi- # Will build for the devkitARM toolchain
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make CROSSDEV=arm-none-eabi- # Will build for the CodeSourcery toolchain
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make CROSSDEV=arm-elf- # Will build for the NuttX buildroot toolchain
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Of course, hard coding this CROSS_COMPILE value in Make.defs file will save
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some repetitive typing.
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NuttX buildroot Toolchain
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^^^^^^^^^^^^^^^^^^^^^^^^^
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A GNU GCC-based toolchain is assumed. The files */setenv.sh should
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be modified to point to the correct path to the Cortex-M3 GCC toolchain (if
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different from the default).
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different from the default in your PATH variable).
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If you have no Cortex-M3 toolchain, one can be downloaded from the NuttX
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SourceForge download site (https://sourceforge.net/project/showfiles.php?group_id=189573).
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@ -35,7 +35,13 @@
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include ${TOPDIR}/.config
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CROSSDEV = arm-elf-
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# The default value for CROSSDEV can be overridden from the make command line:
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# make -- Will build for the devkitARM toolchain
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# make CROSSDEV=arm-eabi- -- Will build for the devkitARM toolchain
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# make CROSSDEV=arm-none-eabi- -- Will build for the CodeSourcery toolchain
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# make CROSSDEV=arm-elf- -- Will build for the NuttX buildroot toolchain
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CROSSDEV = arm-eabi-
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CC = $(CROSSDEV)gcc
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CXX = $(CROSSDEV)g++
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CPP = $(CROSSDEV)gcc -E
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@ -59,7 +65,12 @@ else
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ARCHOPTIMIZATION = -Os -fno-strict-aliasing -fno-strength-reduce -fomit-frame-pointer
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endif
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ARCHCPUFLAGS = -mtune=cortex-m3 -march=armv7-m -mfloat-abi=soft
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ifeq ($(CROSSDEV),arm-elf-)
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ARCHCPUFLAGS = -mtune=cortex-m3 -march=armv7-m -mfloat-abi=soft
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else
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ARCHCPUFLAGS = -mcpu=cortex-m3 -mthumb -mfloat-abi=soft
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endif
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ARCHDEFINES =
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ARCHINCLUDES = -I. -isystem $(TOPDIR)/include
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ARCHXXINCLUDES = -I. -isystem $(TOPDIR)/include -isystem $(TOPDIR)/include/cxx
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@ -78,7 +89,10 @@ OBJEXT = .o
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LIBEXT = .a
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EXEEXT =
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ifeq ("${CONFIG_DEBUG}","y")
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ifneq ($(CROSSDEV),arm-elf-)
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LDFLAGS += -nostartfiles -nodefaultlibs
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endif
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ifeq ($(CONFIG_DEBUG),y)
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LDFLAGS += -g
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endif
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@ -35,7 +35,13 @@
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include ${TOPDIR}/.config
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CROSSDEV = arm-elf-
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# The default value for CROSSDEV can be overridden from the make command line:
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# make -- Will build for the devkitARM toolchain
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# make CROSSDEV=arm-eabi- -- Will build for the devkitARM toolchain
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# make CROSSDEV=arm-none-eabi- -- Will build for the CodeSourcery toolchain
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# make CROSSDEV=arm-elf- -- Will build for the NuttX buildroot toolchain
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CROSSDEV = arm-eabi-
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CC = $(CROSSDEV)gcc
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CXX = $(CROSSDEV)g++
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CPP = $(CROSSDEV)gcc -E
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@ -59,7 +65,12 @@ else
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ARCHOPTIMIZATION = -Os -fno-strict-aliasing -fno-strength-reduce -fomit-frame-pointer
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endif
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ARCHCPUFLAGS = -mtune=cortex-m3 -march=armv7-m -mfloat-abi=soft
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ifeq ($(CROSSDEV),arm-elf-)
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ARCHCPUFLAGS = -mtune=cortex-m3 -march=armv7-m -mfloat-abi=soft
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else
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ARCHCPUFLAGS = -mcpu=cortex-m3 -mthumb -mfloat-abi=soft
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endif
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ARCHDEFINES =
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ARCHINCLUDES = -I. -isystem $(TOPDIR)/include
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ARCHXXINCLUDES = -I. -isystem $(TOPDIR)/include -isystem $(TOPDIR)/include/cxx
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@ -78,7 +89,10 @@ OBJEXT = .o
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LIBEXT = .a
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EXEEXT =
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ifeq ("${CONFIG_DEBUG}","y")
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ifneq ($(CROSSDEV),arm-elf-)
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LDFLAGS += -nostartfiles -nodefaultlibs
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endif
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ifeq ($(CONFIG_DEBUG),y)
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LDFLAGS += -g
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endif
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@ -35,7 +35,13 @@
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include ${TOPDIR}/.config
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CROSSDEV = arm-elf-
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# The default value for CROSSDEV can be overridden from the make command line:
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# make -- Will build for the devkitARM toolchain
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# make CROSSDEV=arm-eabi- -- Will build for the devkitARM toolchain
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# make CROSSDEV=arm-none-eabi- -- Will build for the CodeSourcery toolchain
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# make CROSSDEV=arm-elf- -- Will build for the NuttX buildroot toolchain
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CROSSDEV = arm-eabi-
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CC = $(CROSSDEV)gcc
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CXX = $(CROSSDEV)g++
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CPP = $(CROSSDEV)gcc -E
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@ -59,7 +65,12 @@ else
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ARCHOPTIMIZATION = -Os -fno-strict-aliasing -fno-strength-reduce -fomit-frame-pointer
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endif
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ARCHCPUFLAGS = -mtune=cortex-m3 -march=armv7-m -mfloat-abi=soft
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ifeq ($(CROSSDEV),arm-elf-)
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ARCHCPUFLAGS = -mtune=cortex-m3 -march=armv7-m -mfloat-abi=soft
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else
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ARCHCPUFLAGS = -mcpu=cortex-m3 -mthumb -mfloat-abi=soft
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endif
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ARCHDEFINES =
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ARCHINCLUDES = -I. -isystem $(TOPDIR)/include
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ARCHXXINCLUDES = -I. -isystem $(TOPDIR)/include -isystem $(TOPDIR)/include/cxx
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@ -78,7 +89,10 @@ OBJEXT = .o
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LIBEXT = .a
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EXEEXT =
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ifeq ("${CONFIG_DEBUG}","y")
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ifneq ($(CROSSDEV),arm-elf-)
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LDFLAGS += -nostartfiles -nodefaultlibs
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endif
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ifeq ($(CONFIG_DEBUG),y)
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LDFLAGS += -g
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endif
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@ -35,7 +35,13 @@
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include ${TOPDIR}/.config
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CROSSDEV = arm-elf-
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# The default value for CROSSDEV can be overridden from the make command line:
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# make -- Will build for the devkitARM toolchain
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# make CROSSDEV=arm-eabi- -- Will build for the devkitARM toolchain
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# make CROSSDEV=arm-none-eabi- -- Will build for the CodeSourcery toolchain
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# make CROSSDEV=arm-elf- -- Will build for the NuttX buildroot toolchain
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CROSSDEV = arm-eabi-
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CC = $(CROSSDEV)gcc
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CXX = $(CROSSDEV)g++
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CPP = $(CROSSDEV)gcc -E
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@ -59,7 +65,12 @@ else
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ARCHOPTIMIZATION = -Os -fno-strict-aliasing -fno-strength-reduce -fomit-frame-pointer
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endif
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ARCHCPUFLAGS = -mtune=cortex-m3 -march=armv7-m -mfloat-abi=soft
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ifeq ($(CROSSDEV),arm-elf-)
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ARCHCPUFLAGS = -mtune=cortex-m3 -march=armv7-m -mfloat-abi=soft
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else
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ARCHCPUFLAGS = -mcpu=cortex-m3 -mthumb -mfloat-abi=soft
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endif
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ARCHDEFINES =
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ARCHINCLUDES = -I. -isystem $(TOPDIR)/include
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ARCHXXINCLUDES = -I. -isystem $(TOPDIR)/include -isystem $(TOPDIR)/include/cxx
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@ -78,7 +89,10 @@ OBJEXT = .o
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LIBEXT = .a
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EXEEXT =
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ifeq ("${CONFIG_DEBUG}","y")
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ifneq ($(CROSSDEV),arm-elf-)
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LDFLAGS += -nostartfiles -nodefaultlibs
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endif
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ifeq ($(CONFIG_DEBUG),y)
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LDFLAGS += -g
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endif
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