Mcucpp

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import os
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from SCons.Script import *
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import glob
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def espToolTargets(target, source, env):
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	src_base = os.path.basename(source[0].abspath)
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	return ['%s-0x00000.bin' % (src_base), '%s-0x01010.bin' % (src_base)], source
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def flashImage(target, source, env):
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	command = '$ESPTOOL -p $ESPPORT -b $BAUD write_flash 0x00000 "%s" 0x01010 "%s"' % (source[0].abspath, source[1].abspath)
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	return env.Execute(command)
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def generate(env, **kw):
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	env.PrependENVPath('PATH', os.path.join(env['ESP8266_TOOLCHAIN'], bin))
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	if env.Detect('xtensa-lx106-elf-gcc'): 
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		env['TOOL_PREFIX'] = 'xtensa-lx106-elf-'
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	else:
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		raise Exception('Unable to find build tools xtensa-lx106-elf')
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	env.Tool('gnu-tools')
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	if not 'IDF_PATH' in env:
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		sdkPath = glob.glob(env['ESP8266_RTOS_SDK'] + '/ESP8266*SDK')[0]
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		print ("SDK path = ", sdkPath)
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		env['IDF_PATH'] = sdkPath
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	if not 'ESPPORT' in env:
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		env['ESPPORT'] = "COM1"
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	if not 'BAUD' in env:
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		env['BAUD'] = "230400"
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	hexBuilder = Builder(
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		action = '$OBJCOPY -O ihex --only-section .isr_vectors --only-section .text --only-section .rodata --only-section .ctors --only-section .dtors --only-section .data --only-section .crc_section $SOURCE $TARGET', 
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		src_suffix = ".elf",
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		suffix = ".hex")
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	env.Append(BUILDERS = {'Hex': hexBuilder})
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	env['CCFLAGS'] = [
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		#"-Wall",
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		"-Wextra",
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		"-Wpointer-arith",
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		"-Wformat",
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		"-Wunused",
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		"-g",
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		"-O2",
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		"-Wpointer-arith",
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		"-Wundef",
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		#"-Werror",
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		"-Wl,-EL --longcalls --text-section-literals",
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		"-fno-inline-functions",
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		"-nostdlib",
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		"-mlongcalls",
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		"-mtext-section-literals",
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		"-mno-serialize-volatile",
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	]
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	# env.Append(LINKFLAGS=[
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		# '-nostdlib',
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		# '-Wl,--no-check-sections',
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		# '-u', 'call_user_start',
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		# '-Wl,-static'
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		# ])
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	libpath = env.Dir(env['SDK'] + 'components/esp8266/lib').srcnode().abspath
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	print libpath
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	env.Append(LIBPATH=[libpath])
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	sdkLibs = ['c', 'gcc', 'phy', 'pp', 'net80211', 'lwip',	'wpa', 'main', 'espnow', 'crypto']
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	env.Append(LINKFLAGS=[
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		'"-L'+libpath+'"',
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		'-nostdlib',
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		'-flto',
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		'-Wl,--no-check-sections',
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		'-Wl,--gc-sections',
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		'-u call_user_start',
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		'-Wl,-static',
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		'-Wl,--start-group',
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		'-lc',
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		'-lgcc',
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		'-lcore',
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		'-lespnow',
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		'-lhal',
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		'-lnet80211',
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		'-lphy',
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		'-lpp',
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		'-lsmartconfig',
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		'-lssc',
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		'-lwpa',
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		'-lwps',
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		'-llwip',
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		'-lcrypto',
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		'-ldriver',
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		'-Wl,--end-group',
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		])
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	env['ESPTOOL'] = env.File('#/esptool/esptool.py').srcnode().abspath
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	binImageBuilder = Builder(
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		action = '$ESPTOOL elf2image $SOURCE', 
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		src_suffix = ".elf",
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		suffix = ".bin",
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		emitter = espToolTargets )
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	flasherBuilder = Builder(
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		action = flashImage, 
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		src_suffix = ".bin" )
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	env.Append(BUILDERS = {
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		'MakeFlashImage': binImageBuilder,
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		'Flash': flasherBuilder})
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def exists(env):
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	return env.Detect('xtensa-lx106-elf-gcc')