mpy-tool.py 18.5 KB
Newer Older
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
#!/usr/bin/env python3
#
# This file is part of the MicroPython project, http://micropython.org/
#
# The MIT License (MIT)
#
# Copyright (c) 2016 Damien P. George
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.

27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
# Python 2/3 compatibility code
from __future__ import print_function
import platform
if platform.python_version_tuple()[0] == '2':
    str_cons = lambda val, enc=None: val
    bytes_cons = lambda val, enc=None: bytearray(val)
    is_str_type = lambda o: type(o) is str
    is_bytes_type = lambda o: type(o) is bytearray
    is_int_type = lambda o: type(o) is int or type(o) is long
else:
    str_cons = str
    bytes_cons = bytes
    is_str_type = lambda o: type(o) is str
    is_bytes_type = lambda o: type(o) is bytes
    is_int_type = lambda o: type(o) is int
# end compatibility code

44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
import sys
from collections import namedtuple

sys.path.append('../py')
import makeqstrdata as qstrutil

class FreezeError(Exception):
    def __init__(self, rawcode, msg):
        self.rawcode = rawcode
        self.msg = msg

    def __str__(self):
        return 'error while freezing %s: %s' % (self.rawcode.source_file, self.msg)

class Config:
    MICROPY_LONGINT_IMPL_NONE = 0
    MICROPY_LONGINT_IMPL_LONGLONG = 1
    MICROPY_LONGINT_IMPL_MPZ = 2
config = Config()

MP_OPCODE_BYTE = 0
MP_OPCODE_QSTR = 1
MP_OPCODE_VAR_UINT = 2
MP_OPCODE_OFFSET = 3

# extra bytes:
MP_BC_MAKE_CLOSURE = 0x62
MP_BC_MAKE_CLOSURE_DEFARGS = 0x63
MP_BC_RAISE_VARARGS = 0x5c
# extra byte if caching enabled:
MP_BC_LOAD_NAME = 0x1c
MP_BC_LOAD_GLOBAL = 0x1d
MP_BC_LOAD_ATTR = 0x1e
MP_BC_STORE_ATTR = 0x26

def make_opcode_format():
    def OC4(a, b, c, d):
        return a | (b << 2) | (c << 4) | (d << 6)
    U = 0
    B = 0
    Q = 1
    V = 2
    O = 3
87
    return bytes_cons((
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
    # this table is taken verbatim from py/bc.c
    OC4(U, U, U, U), # 0x00-0x03
    OC4(U, U, U, U), # 0x04-0x07
    OC4(U, U, U, U), # 0x08-0x0b
    OC4(U, U, U, U), # 0x0c-0x0f
    OC4(B, B, B, U), # 0x10-0x13
    OC4(V, U, Q, V), # 0x14-0x17
    OC4(B, U, V, V), # 0x18-0x1b
    OC4(Q, Q, Q, Q), # 0x1c-0x1f
    OC4(B, B, V, V), # 0x20-0x23
    OC4(Q, Q, Q, B), # 0x24-0x27
    OC4(V, V, Q, Q), # 0x28-0x2b
    OC4(U, U, U, U), # 0x2c-0x2f
    OC4(B, B, B, B), # 0x30-0x33
    OC4(B, O, O, O), # 0x34-0x37
    OC4(O, O, U, U), # 0x38-0x3b
    OC4(U, O, B, O), # 0x3c-0x3f
    OC4(O, B, B, O), # 0x40-0x43
    OC4(B, B, O, U), # 0x44-0x47
    OC4(U, U, U, U), # 0x48-0x4b
    OC4(U, U, U, U), # 0x4c-0x4f
    OC4(V, V, V, V), # 0x50-0x53
    OC4(B, V, V, V), # 0x54-0x57
    OC4(V, V, V, B), # 0x58-0x5b
    OC4(B, B, B, U), # 0x5c-0x5f
    OC4(V, V, V, V), # 0x60-0x63
    OC4(V, V, V, V), # 0x64-0x67
    OC4(Q, Q, B, U), # 0x68-0x6b
    OC4(U, U, U, U), # 0x6c-0x6f

    OC4(B, B, B, B), # 0x70-0x73
    OC4(B, B, B, B), # 0x74-0x77
    OC4(B, B, B, B), # 0x78-0x7b
    OC4(B, B, B, B), # 0x7c-0x7f
    OC4(B, B, B, B), # 0x80-0x83
    OC4(B, B, B, B), # 0x84-0x87
    OC4(B, B, B, B), # 0x88-0x8b
    OC4(B, B, B, B), # 0x8c-0x8f
    OC4(B, B, B, B), # 0x90-0x93
    OC4(B, B, B, B), # 0x94-0x97
    OC4(B, B, B, B), # 0x98-0x9b
    OC4(B, B, B, B), # 0x9c-0x9f
    OC4(B, B, B, B), # 0xa0-0xa3
    OC4(B, B, B, B), # 0xa4-0xa7
    OC4(B, B, B, B), # 0xa8-0xab
    OC4(B, B, B, B), # 0xac-0xaf

    OC4(B, B, B, B), # 0xb0-0xb3
    OC4(B, B, B, B), # 0xb4-0xb7
    OC4(B, B, B, B), # 0xb8-0xbb
    OC4(B, B, B, B), # 0xbc-0xbf

    OC4(B, B, B, B), # 0xc0-0xc3
    OC4(B, B, B, B), # 0xc4-0xc7
    OC4(B, B, B, B), # 0xc8-0xcb
    OC4(B, B, B, B), # 0xcc-0xcf

    OC4(B, B, B, B), # 0xd0-0xd3
    OC4(B, B, B, B), # 0xd4-0xd7
    OC4(B, B, B, B), # 0xd8-0xdb
    OC4(B, B, B, B), # 0xdc-0xdf

    OC4(B, B, B, B), # 0xe0-0xe3
    OC4(B, B, B, B), # 0xe4-0xe7
    OC4(B, B, B, B), # 0xe8-0xeb
    OC4(B, B, B, B), # 0xec-0xef

    OC4(B, B, B, B), # 0xf0-0xf3
    OC4(B, B, B, B), # 0xf4-0xf7
    OC4(B, B, B, U), # 0xf8-0xfb
    OC4(U, U, U, U), # 0xfc-0xff
    ))

# this function mirrors that in py/bc.c
def mp_opcode_format(bytecode, ip, opcode_format=make_opcode_format()):
    opcode = bytecode[ip]
    ip_start = ip
    f = (opcode_format[opcode >> 2] >> (2 * (opcode & 3))) & 3
    if f == MP_OPCODE_QSTR:
        ip += 3
    else:
        extra_byte = (
            opcode == MP_BC_RAISE_VARARGS
            or opcode == MP_BC_MAKE_CLOSURE
            or opcode == MP_BC_MAKE_CLOSURE_DEFARGS
            or config.MICROPY_OPT_CACHE_MAP_LOOKUP_IN_BYTECODE and (
                opcode == MP_BC_LOAD_NAME
                or opcode == MP_BC_LOAD_GLOBAL
                or opcode == MP_BC_LOAD_ATTR
                or opcode == MP_BC_STORE_ATTR
            )
        )
        ip += 1
        if f == MP_OPCODE_VAR_UINT:
            while bytecode[ip] & 0x80 != 0:
                ip += 1
            ip += 1
        elif f == MP_OPCODE_OFFSET:
            ip += 2
        ip += extra_byte
    return f, ip - ip_start

def decode_uint(bytecode, ip):
    unum = 0
    while True:
        val = bytecode[ip]
        ip += 1
        unum = (unum << 7) | (val & 0x7f)
        if not (val & 0x80):
            break
    return ip, unum

def extract_prelude(bytecode):
    ip = 0
    ip, n_state = decode_uint(bytecode, ip)
    ip, n_exc_stack = decode_uint(bytecode, ip)
    scope_flags = bytecode[ip]; ip += 1
    n_pos_args = bytecode[ip]; ip += 1
    n_kwonly_args = bytecode[ip]; ip += 1
    n_def_pos_args = bytecode[ip]; ip += 1
    ip2, code_info_size = decode_uint(bytecode, ip)
    ip += code_info_size
    while bytecode[ip] != 0xff:
        ip += 1
    ip += 1
    # ip now points to first opcode
    # ip2 points to simple_name qstr
    return ip, ip2, (n_state, n_exc_stack, scope_flags, n_pos_args, n_kwonly_args, n_def_pos_args, code_info_size)

class RawCode:
    def __init__(self, bytecode, qstrs, objs, raw_codes):
        # set core variables
        self.bytecode = bytecode
        self.qstrs = qstrs
        self.objs = objs
        self.raw_codes = raw_codes

        # extract prelude
        self.ip, self.ip2, self.prelude = extract_prelude(self.bytecode)
        self.simple_name = self._unpack_qstr(self.ip2)
        self.source_file = self._unpack_qstr(self.ip2 + 2)

    def _unpack_qstr(self, ip):
        qst = self.bytecode[ip] | self.bytecode[ip + 1] << 8
        return global_qstrs[qst]

    def dump(self):
        # dump children first
        for rc in self.raw_codes:
            rc.freeze()
        # TODO

    def freeze(self, parent_name):
        self.escaped_name = parent_name + self.simple_name.qstr_esc

        # emit children first
        for rc in self.raw_codes:
            rc.freeze(self.escaped_name + '_')

        # generate bytecode data
        print()
        print('// frozen bytecode for file %s, scope %s%s' % (self.source_file.str, parent_name, self.simple_name.str))
        print('STATIC const byte bytecode_data_%s[%u] = {' % (self.escaped_name, len(self.bytecode)))
        print('   ', end='')
        for i in range(self.ip2):
            print(' 0x%02x,' % self.bytecode[i], end='')
        print()
        print('   ', self.simple_name.qstr_id, '& 0xff,', self.simple_name.qstr_id, '>> 8,')
        print('   ', self.source_file.qstr_id, '& 0xff,', self.source_file.qstr_id, '>> 8,')
        print('   ', end='')
        for i in range(self.ip2 + 4, self.ip):
            print(' 0x%02x,' % self.bytecode[i], end='')
        print()
        ip = self.ip
        while ip < len(self.bytecode):
            f, sz = mp_opcode_format(self.bytecode, ip)
            if f == 1:
                qst = self._unpack_qstr(ip + 1).qstr_id
                print('   ', '0x%02x,' % self.bytecode[ip], qst, '& 0xff,', qst, '>> 8,')
            else:
                print('   ', ''.join('0x%02x, ' % self.bytecode[ip + i] for i in range(sz)))
            ip += sz
        print('};')

        # generate constant objects
        for i, obj in enumerate(self.objs):
            obj_name = 'const_obj_%s_%u' % (self.escaped_name, i)
275
276
            if is_str_type(obj):
                obj = bytes_cons(obj, 'utf8')
277
278
279
                print('STATIC const mp_obj_str_t %s = '
                    '{{&mp_type_str}, 0, %u, (const byte*)"%s"};'
                    % (obj_name, len(obj), ''.join(('\\x%02x' % b) for b in obj)))
280
            elif is_bytes_type(obj):
281
282
283
                print('STATIC const mp_obj_str_t %s = '
                    '{{&mp_type_bytes}, 0, %u, (const byte*)"%s"};'
                    % (obj_name, len(obj), ''.join(('\\x%02x' % b) for b in obj)))
284
            elif is_int_type(obj):
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
                if config.MICROPY_LONGINT_IMPL == config.MICROPY_LONGINT_IMPL_NONE:
                    # TODO check if we can actually fit this long-int into a small-int
                    raise FreezeError(self, 'target does not support long int')
                elif config.MICROPY_LONGINT_IMPL == config.MICROPY_LONGINT_IMPL_LONGLONG:
                    # TODO
                    raise FreezeError(self, 'freezing int to long-long is not implemented')
                elif config.MICROPY_LONGINT_IMPL == config.MICROPY_LONGINT_IMPL_MPZ:
                    neg = 0
                    if obj < 0:
                        obj = -obj
                        neg = 1
                    bits_per_dig = config.MPZ_DIG_SIZE
                    digs = []
                    z = obj
                    while z:
                        digs.append(z & ((1 << bits_per_dig) - 1))
                        z >>= bits_per_dig
                    ndigs = len(digs)
                    digs = ','.join(('%#x' % d) for d in digs)
                    print('STATIC const mp_obj_int_t %s = {{&mp_type_int}, '
                        '{.neg=%u, .fixed_dig=1, .alloc=%u, .len=%u, .dig=(uint%u_t[]){%s}}};'
                        % (obj_name, neg, ndigs, ndigs, bits_per_dig, digs))
            elif type(obj) is float:
                # works for REPR A and B only
                print('STATIC const mp_obj_float_t %s = {{&mp_type_float}, %.16g};'
                    % (obj_name, obj))
            else:
                # TODO
                raise FreezeError(self, 'freezing of object %r is not implemented' % (obj,))

        # generate constant table
        print('STATIC const mp_uint_t const_table_data_%s[%u] = {'
            % (self.escaped_name, len(self.qstrs) + len(self.objs) + len(self.raw_codes)))
        for qst in self.qstrs:
            print('    (mp_uint_t)MP_OBJ_NEW_QSTR(%s),' % global_qstrs[qst].qstr_id)
        for i in range(len(self.objs)):
            print('    (mp_uint_t)&const_obj_%s_%u,' % (self.escaped_name, i))
        for rc in self.raw_codes:
            print('    (mp_uint_t)&raw_code_%s,' % rc.escaped_name)
        print('};')

        # generate module
        if self.simple_name.str != '<module>':
            print('STATIC ', end='')
        print('const mp_raw_code_t raw_code_%s = {' % self.escaped_name)
        print('    .kind = MP_CODE_BYTECODE,')
        print('    .scope_flags = 0x%02x,' % self.prelude[2])
        print('    .n_pos_args = %u,' % self.prelude[3])
        print('    .data.u_byte = {')
        print('        .bytecode = bytecode_data_%s,' % self.escaped_name)
        print('        .const_table = const_table_data_%s,' % self.escaped_name)
        print('        #if MICROPY_PERSISTENT_CODE_SAVE')
        print('        .bc_len = %u,' % len(self.bytecode))
        print('        .n_obj = %u,' % len(self.objs))
        print('        .n_raw_code = %u,' % len(self.raw_codes))
        print('        #endif')
        print('    },')
        print('};')

def read_uint(f):
    i = 0
    while True:
347
        b = bytes_cons(f.read(1))[0]
348
349
350
351
352
353
354
355
356
        i = (i << 7) | (b & 0x7f)
        if b & 0x80 == 0:
            break
    return i

global_qstrs = []
qstr_type = namedtuple('qstr', ('str', 'qstr_esc', 'qstr_id'))
def read_qstr(f):
    ln = read_uint(f)
357
    data = str_cons(f.read(ln), 'utf8')
358
359
360
361
362
363
364
365
366
367
368
    qstr_esc = qstrutil.qstr_escape(data)
    global_qstrs.append(qstr_type(data, qstr_esc, 'MP_QSTR_' + qstr_esc))
    return len(global_qstrs) - 1

def read_obj(f):
    obj_type = f.read(1)
    if obj_type == b'e':
        return Ellipsis
    else:
        buf = f.read(read_uint(f))
        if obj_type == b's':
369
            return str_cons(buf, 'utf8')
370
        elif obj_type == b'b':
371
            return bytes_cons(buf)
372
        elif obj_type == b'i':
373
            return int(str_cons(buf, 'ascii'), 10)
374
        elif obj_type == b'f':
375
            return float(str_cons(buf, 'ascii'))
376
        elif obj_type == b'c':
377
            return complex(str_cons(buf, 'ascii'))
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
        else:
            assert 0

def read_qstr_and_pack(f, bytecode, ip):
    qst = read_qstr(f)
    bytecode[ip] = qst & 0xff
    bytecode[ip + 1] = qst >> 8

def read_bytecode_qstrs(file, bytecode, ip):
    while ip < len(bytecode):
        f, sz = mp_opcode_format(bytecode, ip)
        if f == 1:
            read_qstr_and_pack(file, bytecode, ip + 1)
        ip += sz

def read_raw_code(f):
    bc_len = read_uint(f)
    bytecode = bytearray(f.read(bc_len))
    ip, ip2, prelude = extract_prelude(bytecode)
    read_qstr_and_pack(f, bytecode, ip2) # simple_name
    read_qstr_and_pack(f, bytecode, ip2 + 2) # source_file
    read_bytecode_qstrs(f, bytecode, ip)
    n_obj = read_uint(f)
    n_raw_code = read_uint(f)
    qstrs = [read_qstr(f) for _ in range(prelude[3] + prelude[4])]
    objs = [read_obj(f) for _ in range(n_obj)]
    raw_codes = [read_raw_code(f) for _ in range(n_raw_code)]
    return RawCode(bytecode, qstrs, objs, raw_codes)

def read_mpy(filename):
    with open(filename, 'rb') as f:
409
        header = bytes_cons(f.read(4))
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
        if header[0] != ord('M'):
            raise Exception('not a valid .mpy file')
        if header[1] != 0:
            raise Exception('incompatible version')
        feature_flags = header[2]
        config.MICROPY_OPT_CACHE_MAP_LOOKUP_IN_BYTECODE = (feature_flags & 1) != 0
        config.MICROPY_PY_BUILTINS_STR_UNICODE = (feature_flags & 2) != 0
        config.mp_small_int_bits = header[3]
        return read_raw_code(f)

def dump_mpy(raw_codes):
    for rc in raw_codes:
        rc.dump()

def freeze_mpy(qcfgs, base_qstrs, raw_codes):
    cfg_bytes_len = int(qcfgs['BYTES_IN_LEN'])
    cfg_bytes_hash = int(qcfgs['BYTES_IN_HASH'])

    # add to qstrs
    new = {}
    for q in global_qstrs:
        # don't add duplicates
        if q.qstr_esc in base_qstrs or q.qstr_esc in new:
            continue
        new[q.qstr_esc] = (len(new), q.qstr_esc, q.str)
    new = sorted(new.values(), key=lambda x: x[0])

    print('#include "py/mpconfig.h"')
    print('#include "py/objint.h"')
    print('#include "py/objstr.h"')
    print('#include "py/emitglue.h"')
    print()

    print('#if MICROPY_PY_BUILTINS_FLOAT')
    print('typedef struct _mp_obj_float_t {')
    print('    mp_obj_base_t base;')
    print('    mp_float_t value;')
    print('} mp_obj_float_t;')
    print('#endif')
    print()

    print('enum {')
    for i in range(len(new)):
        if i == 0:
            print('    MP_QSTR_%s = MP_QSTRnumber_of,' % new[i][1])
        else:
            print('    MP_QSTR_%s,' % new[i][1])
    print('};')

    print()
    print('extern const qstr_pool_t mp_qstr_const_pool;');
    print('const qstr_pool_t mp_qstr_frozen_const_pool = {')
    print('    (qstr_pool_t*)&mp_qstr_const_pool, // previous pool')
    print('    MP_QSTRnumber_of, // previous pool size')
    print('    %u, // allocated entries' % len(new))
    print('    %u, // used entries' % len(new))
    print('    {')
    for _, _, qstr in new:
        print('        %s,' % qstrutil.make_bytes(cfg_bytes_len, cfg_bytes_hash, qstr))
    print('    },')
    print('};')

    for rc in raw_codes:
        rc.freeze(rc.source_file.str.replace('/', '_')[:-3] + '_')

    print()
    print('const char mp_frozen_mpy_names[] = {')
    for rc in raw_codes:
        module_name = rc.source_file.str[:-len(".py")]
        slash = module_name.rfind('/')
        if slash != -1:
            module_name = module_name[slash + 1:]
        print('"%s\\0"' % module_name)
    print('"\\0"};')

    print('const mp_raw_code_t *const mp_frozen_mpy_content[] = {')
    for rc in raw_codes:
        print('    &raw_code_%s,' % rc.escaped_name)
    print('};')

def main():
    import argparse
    cmd_parser = argparse.ArgumentParser(description='A tool to work with MicroPython .mpy files.')
    cmd_parser.add_argument('-d', '--dump', action='store_true',
        help='dump contents of files')
    cmd_parser.add_argument('-f', '--freeze', action='store_true',
        help='freeze files')
    cmd_parser.add_argument('-q', '--qstr-header',
        help='qstr header file to freeze against')
    cmd_parser.add_argument('-mlongint-impl', choices=['none', 'longlong', 'mpz'], default='mpz',
        help='long-int implementation used by target (default mpz)')
    cmd_parser.add_argument('-mmpz-dig-size', metavar='N', type=int, default=16,
        help='mpz digit size used by target (default 16)')
    cmd_parser.add_argument('files', nargs='+',
        help='input .mpy files')
    args = cmd_parser.parse_args()

    # set config values relevant to target machine
    config.MICROPY_LONGINT_IMPL = {
        'none':config.MICROPY_LONGINT_IMPL_NONE,
        'longlong':config.MICROPY_LONGINT_IMPL_LONGLONG,
        'mpz':config.MICROPY_LONGINT_IMPL_MPZ,
    }[args.mlongint_impl]
    config.MPZ_DIG_SIZE = args.mmpz_dig_size

    if args.qstr_header:
        qcfgs, base_qstrs = qstrutil.parse_input_headers([args.qstr_header])
    else:
        qcfgs, base_qstrs = {'BYTES_IN_LEN':1, 'BYTES_IN_HASH':1}, {}

    raw_codes = [read_mpy(file) for file in args.files]

    if args.dump:
        dump_mpy(raw_codes)
    elif args.freeze:
        try:
            freeze_mpy(qcfgs, base_qstrs, raw_codes)
        except FreezeError as er:
            print(er, file=sys.stderr)
            sys.exit(1)

if __name__ == '__main__':
    main()