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from SCons.Script import *
def SelectMCU(env, mcu, variant_dir = None):
spec = env.PlatformSpec(mcu = mcu)
if len(spec) <= 1:
print('Unknown MCU: %s' % mcu)
Exit(1)
env.SetDefault(
TOOLCHAIN = '%s-' % spec['toolchains'][0],
)
env.Replace(
PLATFORM_SPEC = spec,
CC = '${TOOLCHAIN}gcc',
CXX = '${TOOLCHAIN}g++',
AS = '${TOOLCHAIN}gcc',
LINK = '${TOOLCHAIN}gcc',
AR = '${TOOLCHAIN}ar',
RANLIB = '${TOOLCHAIN}ranlib',
CCFLAGS = Split('-O2 -Wall -ggdb -ffunction-sections'),
CXXFLAGS = Split('-std=c++20 -fno-exceptions -fno-rtti'),
ASFLAGS = Split('-c -x assembler-with-cpp'),
LINKFLAGS = Split('-Wall -nostartfiles -Wl,-T${LINK_SCRIPT} -Wl,--gc-sections'),
CPPPATH = ['${LAKS_PATH}'],
LIBPATH = ['${LAKS_PATH}/ld_scripts'],
LIB_SOURCES = [],
)
env.Replace(
LINK_SCRIPT = 'generated.ld',
)
env.Append(
CCFLAGS = spec.get('cflags', []),
LINKFLAGS = spec.get('cflags', []),
CPPDEFINES = spec.get('define', []),
)
env.SConscript('${LAKS_PATH}/SConscript', variant_dir = variant_dir, exports = 'env')
def exists():
return True
def generate(env):
env.AddMethod(SelectMCU)
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