1# This script generates the opcode.h header file. 2 3import sys 4import tokenize 5 6header = """/* Auto-generated by Tools/scripts/generate_opcode_h.py */ 7#ifndef Py_OPCODE_H 8#define Py_OPCODE_H 9#ifdef __cplusplus 10extern "C" { 11#endif 12 13 14 /* Instruction opcodes for compiled code */ 15""" 16 17footer = """ 18/* EXCEPT_HANDLER is a special, implicit block type which is created when 19 entering an except handler. It is not an opcode but we define it here 20 as we want it to be available to both frameobject.c and ceval.c, while 21 remaining private.*/ 22#define EXCEPT_HANDLER 257 23 24 25enum cmp_op {PyCmp_LT=Py_LT, PyCmp_LE=Py_LE, PyCmp_EQ=Py_EQ, PyCmp_NE=Py_NE, 26 PyCmp_GT=Py_GT, PyCmp_GE=Py_GE, PyCmp_IN, PyCmp_NOT_IN, 27 PyCmp_IS, PyCmp_IS_NOT, PyCmp_EXC_MATCH, PyCmp_BAD}; 28 29#define HAS_ARG(op) ((op) >= HAVE_ARGUMENT) 30 31#ifdef __cplusplus 32} 33#endif 34#endif /* !Py_OPCODE_H */ 35""" 36 37 38def main(opcode_py, outfile='Include/opcode.h'): 39 opcode = {} 40 if hasattr(tokenize, 'open'): 41 fp = tokenize.open(opcode_py) # Python 3.2+ 42 else: 43 fp = open(opcode_py) # Python 2.7 44 with fp: 45 code = fp.read() 46 exec(code, opcode) 47 opmap = opcode['opmap'] 48 with open(outfile, 'w') as fobj: 49 fobj.write(header) 50 for name in opcode['opname']: 51 if name in opmap: 52 fobj.write("#define %-23s %3s\n" % (name, opmap[name])) 53 if name == 'POP_EXCEPT': # Special entry for HAVE_ARGUMENT 54 fobj.write("#define %-23s %3d\n" % 55 ('HAVE_ARGUMENT', opcode['HAVE_ARGUMENT'])) 56 fobj.write(footer) 57 58 print("%s regenerated from %s" % (outfile, opcode_py)) 59 60 61if __name__ == '__main__': 62 main(sys.argv[1], sys.argv[2]) 63