# Copyright 2014-2015 Ivan Kravets <me@ikravets.com>
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#    http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

"""
    Builder for Texas Instruments
    Tiva C Series ARM Cortex-M4 microcontrollers.
"""

from os.path import join

from SCons.Script import (COMMAND_LINE_TARGETS, AlwaysBuild, Default,
                          DefaultEnvironment, SConscript)

env = DefaultEnvironment()

SConscript(env.subst(join("$PIOBUILDER_DIR", "scripts", "basearm.py")))

env.Replace(
    UPLOADER=join("$PIOPACKAGES_DIR", "tool-lm4flash", "lm4flash"),
    UPLOADCMD='"$UPLOADER" $SOURCES'
)

env.Append(
    LINKFLAGS=[
        "-nostartfiles",
        "-nostdlib"
    ]
)

#
# Target: Build executable and linkable firmware
#

target_elf = env.BuildProgram()

#
# Target: Build the .bin file
#

if "uploadlazy" in COMMAND_LINE_TARGETS:
    target_firm = join("$BUILD_DIR", "firmware.bin")
else:
    target_firm = env.ElfToBin(join("$BUILD_DIR", "firmware"), target_elf)

#
# Target: Print binary size
#

target_size = env.Alias("size", target_elf, "$SIZEPRINTCMD")
AlwaysBuild(target_size)

#
# Target: Upload firmware
#

upload = env.Alias(["upload", "uploadlazy"], target_firm, "$UPLOADCMD")
AlwaysBuild(upload)

#
# Target: Define targets
#

Default([target_firm, target_size])
