forked from platformio/platformio-core
109 lines
2.4 KiB
Python
109 lines
2.4 KiB
Python
# Copyright (C) Ivan Kravets <me@ikravets.com>
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# See LICENSE for details.
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"""
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Base for ARM microcontrollers.
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"""
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from SCons.Script import Builder, Import, Return
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env = None
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Import("env")
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env.Replace(
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AR="arm-none-eabi-ar",
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AS="arm-none-eabi-gcc",
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CC="arm-none-eabi-gcc",
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CXX="arm-none-eabi-g++",
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OBJCOPY="arm-none-eabi-objcopy",
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RANLIB="arm-none-eabi-ranlib",
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SIZETOOL="arm-none-eabi-size",
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ARFLAGS=["rcs"],
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ASFLAGS=[
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"-c",
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"-g", # include debugging info (so errors include line numbers)
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"-x", "assembler-with-cpp",
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"-Wall",
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"-mthumb",
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"-mcpu=${BOARD_OPTIONS['build']['cpu']}"
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],
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CPPFLAGS=[
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"-g", # include debugging info (so errors include line numbers)
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"-Os", # optimize for size
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"-ffunction-sections", # place each function in its own section
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"-fdata-sections",
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"-Wall",
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"-mthumb",
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"-mcpu=${BOARD_OPTIONS['build']['cpu']}",
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"-nostdlib",
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"-MMD" # output dependancy info
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],
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CXXFLAGS=[
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"-fno-rtti",
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"-fno-exceptions"
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],
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CPPDEFINES=[
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"F_CPU=$BOARD_F_CPU"
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],
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LINKFLAGS=[
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"-Os",
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"-Wl,--gc-sections",
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"-mthumb",
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"-mcpu=${BOARD_OPTIONS['build']['cpu']}"
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],
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SIZEPRINTCMD='"$SIZETOOL" -B -d $SOURCES'
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)
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if env.get("BOARD_OPTIONS", {}).get("build", {}).get("cpu", "")[-2:] == "m4":
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env.Append(
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ASFLAGS=[
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"-mfloat-abi=hard",
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"-mfpu=fpv4-sp-d16",
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"-fsingle-precision-constant"
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],
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CCFLAGS=[
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"-mfloat-abi=hard",
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"-mfpu=fpv4-sp-d16",
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"-fsingle-precision-constant"
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],
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LINKFLAGS=[
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"-mfloat-abi=hard",
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"-mfpu=fpv4-sp-d16",
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"-fsingle-precision-constant"
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]
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)
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env.Append(
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BUILDERS=dict(
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ElfToBin=Builder(
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action=" ".join([
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"$OBJCOPY",
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"-O",
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"binary",
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"$SOURCES",
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"$TARGET"]),
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suffix=".bin"
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),
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ElfToHex=Builder(
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action=" ".join([
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"$OBJCOPY",
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"-O",
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"ihex",
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"-R",
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".eeprom",
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"$SOURCES",
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"$TARGET"]),
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suffix=".hex"
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)
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)
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)
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Return("env")
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