mirror of
https://github.com/python/cpython.git
synced 2024-12-11 10:50:11 +08:00
7f14f0d8a0
svn+ssh://pythondev@svn.python.org/python/branches/py3k
................
r81032 | antoine.pitrou | 2010-05-09 17:52:27 +0200 (dim., 09 mai 2010) | 9 lines
Recorded merge of revisions 81029 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk
........
r81029 | antoine.pitrou | 2010-05-09 16:46:46 +0200 (dim., 09 mai 2010) | 3 lines
Untabify C files. Will watch buildbots.
........
................
47 lines
1.3 KiB
Python
Executable File
47 lines
1.3 KiB
Python
Executable File
#! /usr/bin/env python
|
|
"""Generate C code for the jump table of the threaded code interpreter
|
|
(for compilers supporting computed gotos or "labels-as-values", such as gcc).
|
|
"""
|
|
|
|
# This code should stay compatible with Python 2.3, at least while
|
|
# some of the buildbots have Python 2.3 as their system Python.
|
|
|
|
import imp
|
|
import os
|
|
|
|
|
|
def find_module(modname):
|
|
"""Finds and returns a module in the local dist/checkout.
|
|
"""
|
|
modpath = os.path.join(
|
|
os.path.dirname(os.path.dirname(__file__)), "Lib")
|
|
return imp.load_module(modname, *imp.find_module(modname, [modpath]))
|
|
|
|
def write_contents(f):
|
|
"""Write C code contents to the target file object.
|
|
"""
|
|
opcode = find_module("opcode")
|
|
targets = ['_unknown_opcode'] * 256
|
|
for opname, op in opcode.opmap.items():
|
|
if opname == "STOP_CODE":
|
|
# XXX opcode not implemented
|
|
continue
|
|
targets[op] = "TARGET_%s" % opname
|
|
f.write("static void *opcode_targets[256] = {\n")
|
|
f.write(",\n".join([" &&%s" % s for s in targets]))
|
|
f.write("\n};\n")
|
|
|
|
|
|
if __name__ == "__main__":
|
|
import sys
|
|
assert len(sys.argv) < 3, "Too many arguments"
|
|
if len(sys.argv) == 2:
|
|
target = sys.argv[1]
|
|
else:
|
|
target = "Python/opcode_targets.h"
|
|
f = open(target, "w")
|
|
try:
|
|
write_contents(f)
|
|
finally:
|
|
f.close()
|