185 lines
4.3 KiB
Python
185 lines
4.3 KiB
Python
# Copyright 2014-present Ivan Kravets <me@ikravets.com>
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# 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,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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"""
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Builder for ST STM32 Series ARM microcontrollers.
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"""
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from os.path import isfile, join
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from SCons.Script import (COMMAND_LINE_TARGETS, AlwaysBuild, Builder, Default,
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DefaultEnvironment)
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env = DefaultEnvironment()
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env.Replace(
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AR="arm-none-eabi-ar",
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AS="arm-none-eabi-as",
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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=["-x", "assembler-with-cpp"],
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CCFLAGS=[
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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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"-nostdlib"
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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=$BOARD_F_CPU"
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],
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LINKFLAGS=[
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"-Os",
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"-Wl,--gc-sections,--relax",
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"-mthumb",
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"-nostartfiles",
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"-nostdlib"
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],
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LIBS=["c", "gcc", "m", "stdc++", "nosys"],
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UPLOADER="st-flash",
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UPLOADERFLAGS=[
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"write", # write in flash
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"$SOURCES", # firmware path to flash
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"0x08000000" # flash start adress
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],
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UPLOADCMD='$UPLOADER $UPLOADERFLAGS',
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SIZEPRINTCMD='$SIZETOOL -B -d $SOURCES',
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PROGNAME="firmware",
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PROGSUFFIX=".elf"
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)
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if "BOARD" in env:
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env.Append(
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CCFLAGS=[
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"-mcpu=%s" % env.BoardConfig().get("build.cpu")
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],
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CPPDEFINES=[
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env.BoardConfig().get("build.variant", "").upper()
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],
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LINKFLAGS=[
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"-mcpu=%s" % env.BoardConfig().get("build.cpu")
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]
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)
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env.Append(
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ASFLAGS=env.get("CCFLAGS", [])[:],
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BUILDERS=dict(
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ElfToBin=Builder(
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action=" ".join([
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"$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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"$TARGET"]),
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suffix=".hex"
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)
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)
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)
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if env.subst("$UPLOAD_PROTOCOL") == "gdb":
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if not isfile(join(env.subst("$PROJECT_DIR"), "upload.gdb")):
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env.Exit(
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"Error: You are using GDB as firmware uploader. "
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"Please specify upload commands in upload.gdb "
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"file in project directory!"
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)
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env.Replace(
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UPLOADER="arm-none-eabi-gdb",
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UPLOADERFLAGS=[
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join("$BUILD_DIR", "firmware.elf"),
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"-batch",
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"-x",
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'"%s"' % join("$PROJECT_DIR", "upload.gdb")
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],
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UPLOADCMD='$UPLOADER $UPLOADERFLAGS'
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)
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#
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# Target: Build executable and linkable firmware
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#
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target_elf = env.BuildProgram()
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#
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# Target: Build the .bin file
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#
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if "uploadlazy" in COMMAND_LINE_TARGETS:
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target_firm = join("$BUILD_DIR", "firmware.bin")
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else:
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target_firm = env.ElfToBin(join("$BUILD_DIR", "firmware"), target_elf)
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#
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# Target: Print binary size
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#
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target_size = env.Alias("size", target_elf, "$SIZEPRINTCMD")
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AlwaysBuild(target_size)
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#
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# Target: Upload by default .bin file
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#
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if "mbed" in env.subst("$FRAMEWORK") and not env.subst("$UPLOAD_PROTOCOL"):
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upload = env.Alias(["upload", "uploadlazy"],
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target_firm, env.UploadToDisk)
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else:
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upload = env.Alias(["upload", "uploadlazy"], target_firm, "$UPLOADCMD")
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AlwaysBuild(upload)
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#
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# Target: Unit Testing
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#
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AlwaysBuild(env.Alias("test", [target_firm, target_size]))
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#
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# Target: Define targets
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#
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Default([target_firm, target_size])
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