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1 #!/usr/bin/env python
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2
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3 import sys
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4 import argparse
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5 import logging
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6
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313
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7 from ppci.c3 import Builder, AstPrinter
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287
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8 import ppci
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312
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9 from ppci.irutils import Verifier, Writer
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301
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10 from ppci.codegen import CodeGenerator
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205
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11 import outstream
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292
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12 from utils import HexFile
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290
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13 import target
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311
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14 from ppci import irutils
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15 import io
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16
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17
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281
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18 logformat='%(asctime)s|%(levelname)s|%(name)s|%(message)s'
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19
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20
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21 def logLevel(s):
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22 """ Converts a string to a valid logging level """
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23 numeric_level = getattr(logging, s.upper(), None)
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24 if not isinstance(numeric_level, int):
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25 raise ValueError('Invalid log level: {}'.format(s))
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26 return numeric_level
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105
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27
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28
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29 class RstFormatter(logging.Formatter):
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30 """ Formatter that tries to create an rst document """
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31 def __init__(self):
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32 super().__init__(fmt=logformat)
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33
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34 def format(self, record):
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35 s = super().format(record)
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36 s += '\n'
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37 if hasattr(record, 'c3_ast'):
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38 f = io.StringIO()
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39 print('', file=f)
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40 print('', file=f)
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41 print('.. code::', file=f)
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42 print('', file=f)
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43 AstPrinter().printAst(record.c3_ast, f)
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44 #Writer(' ').write(record.c3_ast, f)
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45 print('', file=f)
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46 s += '\n' + f.getvalue()
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47 if hasattr(record, 'ircode'):
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48 f = io.StringIO()
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49 print('', file=f)
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50 print('', file=f)
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51 print('.. code::', file=f)
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52 print('', file=f)
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53 Writer(' ').write(record.ircode, f)
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54 print('', file=f)
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55 s += '\n' + f.getvalue()
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56 if hasattr(record, 'irfunc'):
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57 f = io.StringIO()
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58 print('', file=f)
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59 print('', file=f)
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60 print('.. code::', file=f)
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61 print('', file=f)
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62 Writer(' ').write_function(record.irfunc, f)
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63 print('', file=f)
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64 s += '\n' + f.getvalue()
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65 if hasattr(record, 'ppci_frame'):
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66 f = io.StringIO()
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67 frame = record.ppci_frame
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68 print('', file=f)
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69 print('.. code::', file=f)
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70 print('', file=f)
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71 print(' {}'.format(frame.name), file=f)
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72 for i in frame.instructions:
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73 print(' {}'.format(i),file=f)
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74 print('', file=f)
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75 s += '\n' + f.getvalue()
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76 if hasattr(record, 'ra_cfg'):
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77 f = io.StringIO()
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78 print('', file=f)
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79 print('', file=f)
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80 print('.. graphviz::', file=f)
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81 print('', file=f)
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82 print(' digraph G {', file=f)
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83 cfg = record.ra_cfg
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84 cfg.to_dot(f)
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85 print(' }', file=f)
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86 print('', file=f)
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87 s += '\n' + f.getvalue()
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88 if hasattr(record, 'ra_ig'):
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89 f = io.StringIO()
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90 print('', file=f)
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91 print('', file=f)
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92 print('.. graphviz::', file=f)
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93 print('', file=f)
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94 print(' digraph G {', file=f)
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95 ig = record.ra_ig
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96 ig.to_dot(f)
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97 print(' }', file=f)
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98 print('', file=f)
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99 s += '\n' + f.getvalue()
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100 return s
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101
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102
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103 target_list = [target.armtarget]
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104 targets = {t.name: t for t in target_list}
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105 targetnames = list(targets.keys())
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106
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107 # Parse arguments:
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108 parser = argparse.ArgumentParser(description='lcfos Compiler')
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109 # Input:
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110 parser.add_argument('source', type=argparse.FileType('r'), \
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111 help='the source file to build', nargs="+")
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112 parser.add_argument('-i', '--imp', type=argparse.FileType('r'), \
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113 help='Possible import module', action='append', default=[])
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114
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115 parser.add_argument('--dumpir', action='store_true', help="Dump IR-code")
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116 parser.add_argument('--optimize', action='store_true', help="Optimize")
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117 parser.add_argument('--target', help="Backend selection",
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118 choices=targetnames, required=True)
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119 parser.add_argument('-o', '--output', help='Output file', metavar='filename')
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120 parser.add_argument('--hexfile', help='Output hexfile',
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121 type=argparse.FileType('w'))
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122 parser.add_argument('--log', help='Log level (INFO,DEBUG)', type=logLevel)
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123
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124
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125 def zcc(srcs, imps, tg, outs, diag, dumpir=False):
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126 """
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127 Compile sources into output stream.
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128 Sources is an iterable of open files.
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129 """
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130 logging.info('Zcc started')
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207
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131 # Front end:
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132 c3b = Builder(diag, tg)
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133 cg = CodeGenerator(tg)
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134
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135 # TODO: remove this arm specifics:
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136 outs.getSection('code').address = 0x08000000
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137 outs.getSection('data').address = 0x20000000
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138
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139 # Emit some custom start code:
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140 tg.startCode(outs)
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141 for ircode in c3b.build(srcs, imps):
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142 if not ircode:
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143 return
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144
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145 d = {'ircode':ircode}
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146 logging.info('Verifying code {}'.format(ircode), extra=d)
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147 # Optimization passes, TODO
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148 Verifier().verify(ircode)
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149
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150 # Code generation:
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151 d = {'ircode':ircode}
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152 logging.info('Starting code generation for {}'.format(ircode), extra=d)
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153 cg.generate(ircode, outs)
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154 # TODO: fixup references, do this in another way?
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155 outs.backpatch()
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156 outs.backpatch() # Why two times?
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157 return c3b.ok
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158
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159
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160 def main(args):
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161 #logging.getLogger().setLevel(logging.DEBUG)
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162 #logging.getLogger().addHandler(RstLogHandler())
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163 #fh = logging.FileHandler('log.rst', mode='w')
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164 #fh.setFormatter(RstFormatter())
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165 #logging.getLogger().addHandler(fh)
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166
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167 tg = targets[args.target]
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168 diag = ppci.DiagnosticsManager()
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169 outs = outstream.TextOutputStream()
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170
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171 res = zcc(args.source, args.imp, tg, outs, diag, dumpir=args.dumpir)
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172 if not res:
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173 diag.printErrors()
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174 return 1
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175
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176 logging.info('Assembly created', extra={'zcc_outs':outs})
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177
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178 code_bytes = outs.sections['code'].to_bytes()
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179 if args.output:
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180 output_filename = args.output
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181 with open(output_filename, 'wb') as f:
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182 f.write(code_bytes)
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183
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184 if args.hexfile:
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185 logging.info('Creating hexfile')
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186 hf = HexFile()
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187 hf.addRegion(0x08000000, code_bytes)
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188 hf.save(args.hexfile)
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189 return 0
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190
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191
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192 if __name__ == '__main__':
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193 arguments = parser.parse_args()
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194 sys.exit(main(arguments))
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