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- # Copyright 2014-present PlatformIO <contact@platformio.org>
- #
- # 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.
-
- #
- # Default flags for bare-metal programming (without any framework layers)
- #
-
- from SCons.Script import DefaultEnvironment
-
- env = DefaultEnvironment()
-
- env.Append(
- ASFLAGS=["-x", "assembler-with-cpp"],
-
- CCFLAGS=[
- "-Os", # optimize for size
- "-Wall", # show warnings
- "-ffunction-sections", # place each function in its own section
- "-fdata-sections",
- "-mmcu=$BOARD_MCU"
- ],
-
- CXXFLAGS=[
- "-fno-exceptions",
- "-felide-constructors",
- "-std=gnu++11"
- ],
-
- CPPDEFINES=[
- ("F_CPU", "$BOARD_F_CPU"),
- "LAYOUT_US_ENGLISH"
- ],
-
- LINKFLAGS=[
- "-Os",
- "-Wl,--gc-sections,--relax",
- "-mmcu=$BOARD_MCU"
- ],
-
- LIBS=["m"]
- )
-
- # copy CCFLAGS to ASFLAGS (-x assembler-with-cpp mode)
- env.Append(ASFLAGS=env.get("CCFLAGS", [])[:])
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