annotate python/zcc.py @ 292:534b94b40aa8

Fixup reorganize
author Windel Bouwman
date Wed, 27 Nov 2013 08:06:42 +0100
parents 7b38782ed496
children 6aa721e7b10b
rev   line source
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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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7 import c3
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8 import ppci
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9 import codegen
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10 import outstream
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11 from utils import HexFile
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12 import target
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13
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14
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15 logformat='%(asctime)s|%(levelname)s|%(name)s|%(message)s'
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17
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18 def logLevel(s):
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19 numeric_level = getattr(logging, s.upper(), None)
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20 if not isinstance(numeric_level, int):
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21 raise ValueError('Invalid log level: {}'.format(s))
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22 return numeric_level
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24
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25 target_list = [target.armtarget]
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26 targets = {t.name: t for t in target_list}
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27 targetnames = list(targets.keys())
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28
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29 # Parse arguments:
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30 parser = argparse.ArgumentParser(description='lcfos Compiler')
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31 # Input:
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32 parser.add_argument('source', type=argparse.FileType('r'), \
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33 help='the source file to build', nargs="+")
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34 parser.add_argument('-i', '--imp', type=argparse.FileType('r'), \
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35 help='Possible import module', action='append')
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36
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37 parser.add_argument('--dumpir', action='store_true', help="Dump IR-code")
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38 parser.add_argument('--dumpasm', action='store_true', help="Dump ASM-code")
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39 parser.add_argument('--optimize', action='store_true', help="Optimize")
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40 parser.add_argument('--target', help="Backend selection",
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41 choices=targetnames, required=True)
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42 parser.add_argument('-o', '--output', help='Output file', metavar='filename')
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43 parser.add_argument('--hexfile', help='Output hexfile',
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44 type=argparse.FileType('w'))
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45 parser.add_argument('--log', help='Log level (INFO,DEBUG)', type=logLevel)
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47
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48 def zcc(srcs, imps, tg, outs, diag, dumpir=False):
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49 """
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50 Compile sources into output stream.
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51 Sources is an iterable of open files.
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52 """
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53 logging.info('Zcc started')
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54 # Front end:
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55 c3b = c3.Builder(diag)
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56 cg = codegen.CodeGenerator(tg)
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57
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58 # TODO: remove this arm specifics:
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59 outs.getSection('code').address = 0x08000000
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60 outs.getSection('data').address = 0x20000000
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61
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62 # Emit some custom start code:
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63 tg.startCode(outs)
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64 for ircode in c3b.build(srcs, imps):
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65 if not ircode:
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66 return
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68 # Optimization passes, TODO
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69
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70 if dumpir:
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71 ircode.dump()
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72
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73 # Code generation:
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74 cg.generate(ircode, outs)
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75 # TODO: fixup references, do this in another way?
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76 outs.backpatch()
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77 outs.backpatch() # Why two times?
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78 return c3b.ok
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81 def main(args):
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82 logging.basicConfig(format=logformat, level=args.log)
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83 src = args.source
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84 imps = args.imp
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85 tg = targets[args.target]
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86 diag = ppci.DiagnosticsManager()
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87 outs = outstream.TextOutputStream()
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88
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89 res = zcc(src, imps, tg, outs, diag, dumpir=args.dumpir)
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90 if not res:
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91 diag.printErrors(src)
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92 return 1
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93
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94 if args.dumpasm:
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95 outs.dump()
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96
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97 code_bytes = outs.sections['code'].to_bytes()
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98 if args.output:
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99 output_filename = args.output
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100 with open(output_filename, 'wb') as f:
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101 f.write(code_bytes)
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103 if args.hexfile:
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104 logging.info('Creating hexfile')
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105 hf = HexFile()
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106 hf.addRegion(0x08000000, code_bytes)
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107 hf.save(args.hexfile)
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108 return 0
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111 if __name__ == '__main__':
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112 arguments = parser.parse_args()
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113 sys.exit(main(arguments))