67 lines
1.6 KiB
Python
67 lines
1.6 KiB
Python
# Copyright 2014-present PlatformIO <contact@platformio.org>
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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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# Default flags for bare-metal programming (without any framework layers)
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#
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from SCons.Script import DefaultEnvironment
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env = DefaultEnvironment()
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env.Append(
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ASFLAGS=["-x", "assembler-with-cpp"],
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CCFLAGS=[
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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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"--specs=nano.specs",
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"--specs=nosys.specs"
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],
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LIBS=["c", "gcc", "m", "stdc++", "nosys"]
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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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LINKFLAGS=[
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"-mcpu=%s" % env.BoardConfig().get("build.cpu")
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]
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)
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# copy CCFLAGS to ASFLAGS (-x assembler-with-cpp mode)
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env.Append(ASFLAGS=env.get("CCFLAGS", [])[:])
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