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Łukasz LangaandClaude Fable 5.1
0fc01831b6
The windows-2022 GitHub runner image no longer ships Python 3.10, so PCbuild/find_python.bat fell through to NuGet and installed the latest pythonx86 package, which is now 3.15.1. Python 3.15 removed Loader.load_module(), which Python/makeopcodetargets.py used to import Lib/opcode.py, so the _RegenOpcodes target failed and broke every Windows CI build on this branch. Load Lib/opcode.py through importlib.util instead, and extend the py.exe search list in find_python.bat up to 3.14 so the build picks up the runner's preinstalled Python rather than whatever NuGet considers latest. Co-authored-by: Claude Fable 5.1 <noreply@anthropic.com>
54 lines
1.5 KiB
Python
Executable File
54 lines
1.5 KiB
Python
Executable File
#! /usr/bin/env python
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"""Generate C code for the jump table of the threaded code interpreter
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(for compilers supporting computed gotos or "labels-as-values", such as gcc).
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"""
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import importlib.util
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import os
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import sys
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def find_module(modname):
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"""Finds and returns a module in the local dist/checkout.
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"""
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modpath = os.path.join(
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os.path.dirname(os.path.dirname(__file__)), "Lib", modname + ".py")
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spec = importlib.util.spec_from_file_location(modname, modpath)
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module = importlib.util.module_from_spec(spec)
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spec.loader.exec_module(module)
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return module
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def write_contents(f):
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"""Write C code contents to the target file object.
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"""
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opcode = find_module('opcode')
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targets = ['_unknown_opcode'] * 256
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targets[255] = "TARGET_DO_TRACING"
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for opname, op in opcode.opmap.items():
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targets[op] = "TARGET_%s" % opname
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next_op = 1
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for opname in opcode._specialized_instructions:
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while targets[next_op] != '_unknown_opcode':
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next_op += 1
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targets[next_op] = "TARGET_%s" % opname
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f.write("static void *opcode_targets[256] = {\n")
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f.write(",\n".join([" &&%s" % s for s in targets]))
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f.write("\n};\n")
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def main():
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if len(sys.argv) >= 3:
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sys.exit("Too many arguments")
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if len(sys.argv) == 2:
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target = sys.argv[1]
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else:
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target = "Python/opcode_targets.h"
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with open(target, "w") as f:
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write_contents(f)
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print("Jump table written into %s" % target)
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if __name__ == "__main__":
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main()
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