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annotate Python/makeopcodetargets.py @ 53072:7e978ca42930

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Merged revisions 70980,71059,71225,71234,71241,71243,71249,71251,71255,71266,71299,71329,71397-71398,71486 via svnmerge from svn+ssh://pythondev@svn.python.org/python/trunk ........ r70980 | jack.diederich | 2009-04-01 15:26:13 -0500 (Wed, 01 Apr 2009) | 3 lines bounds check arguments to mmap.move(). All of them. Really. fixes crasher on OS X 10.5 ........ r71059 | mark.dickinson | 2009-04-02 13:39:37 -0500 (Thu, 02 Apr 2009) | 2 lines sys.long_info attributes should be ints, not longs ........ r71225 | georg.brandl | 2009-04-05 06:54:07 -0500 (Sun, 05 Apr 2009) | 1 line #5580: no need to use parentheses when converterr() argument is actually a type description. ........ r71234 | georg.brandl | 2009-04-05 08:16:35 -0500 (Sun, 05 Apr 2009) | 1 line Whitespace normalization. ........ r71241 | georg.brandl | 2009-04-05 09:48:49 -0500 (Sun, 05 Apr 2009) | 1 line #5471: fix expanduser() for $HOME set to "/". ........ r71243 | georg.brandl | 2009-04-05 10:14:29 -0500 (Sun, 05 Apr 2009) | 1 line #5432: make plistlib docstring a raw string, since it contains examples with backslash escapes. ........ r71249 | georg.brandl | 2009-04-05 11:30:43 -0500 (Sun, 05 Apr 2009) | 1 line #5444: adapt make.bat to new htmlhelp output file name. ........ r71251 | georg.brandl | 2009-04-05 12:17:42 -0500 (Sun, 05 Apr 2009) | 1 line #5298: clarify docs about GIL by using more consistent wording. ........ r71255 | georg.brandl | 2009-04-05 13:34:58 -0500 (Sun, 05 Apr 2009) | 1 line #602893: add indicator for current line in cgitb that doesnt rely on styling alone. ........ r71266 | georg.brandl | 2009-04-05 15:23:13 -0500 (Sun, 05 Apr 2009) | 1 line Normalize issue referencing style. ........ r71299 | gregory.p.smith | 2009-04-05 18:43:58 -0500 (Sun, 05 Apr 2009) | 3 lines Fixes issue5705: os.setuid() and friends did not accept the same range of values that pwd.getpwnam() returns. ........ r71329 | benjamin.peterson | 2009-04-06 16:53:33 -0500 (Mon, 06 Apr 2009) | 1 line add create_connection to __all__ #5711 ........ r71397 | georg.brandl | 2009-04-08 11:36:39 -0500 (Wed, 08 Apr 2009) | 1 line Remove redundant backtick. ........ r71398 | georg.brandl | 2009-04-08 11:39:04 -0500 (Wed, 08 Apr 2009) | 1 line Update ignore file for suspicious builder. ........ r71486 | andrew.kuchling | 2009-04-11 11:18:14 -0500 (Sat, 11 Apr 2009) | 1 line Re-word ........
author Benjamin Peterson <benjamin@python.org>
date Sat, 11 Apr 2009 19:48:14 +0000
parents df090597afaa
children f197407bdba2 fcfe324663a6
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 #! /usr/bin/env python
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2 """Generate C code for the jump table of the threaded code interpreter
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3 (for compilers supporting computed gotos or "labels-as-values", such as gcc).
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4 """
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5
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6 # This code should stay compatible with Python 2.3, at least while
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7 # some of the buildbots have Python 2.3 as their system Python.
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8
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9 import imp
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10 import os
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11
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12
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13 def find_module(modname):
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14 """Finds and returns a module in the local dist/checkout.
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15 """
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16 modpath = os.path.join(
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17 os.path.dirname(os.path.dirname(__file__)), "Lib")
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18 return imp.load_module(modname, *imp.find_module(modname, [modpath]))
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19
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20 def write_contents(f):
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21 """Write C code contents to the target file object.
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22 """
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23 opcode = find_module("opcode")
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24 targets = ['_unknown_opcode'] * 256
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25 for opname, op in opcode.opmap.items():
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26 if opname == "STOP_CODE":
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27 # XXX opcode not implemented
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28 continue
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29 targets[op] = "TARGET_%s" % opname
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30 f.write("static void *opcode_targets[256] = {\n")
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31 f.write(",\n".join(["\t&&%s" % s for s in targets]))
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32 f.write("\n};\n")
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33
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34
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35 if __name__ == "__main__":
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36 import sys
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37 assert len(sys.argv) < 3, "Too many arguments"
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38 if len(sys.argv) == 2:
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39 target = sys.argv[1]
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40 else:
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41 target = "Python/opcode_targets.h"
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42 f = open(target, "w")
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43 try:
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44 write_contents(f)
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45 finally:
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46 f.close()