source: mainline/tools/config.py@ bb14312

serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since bb14312 was 3f1a481, checked in by Jiří Zárevúcky <zarevucky.jiri@…>, 6 years ago

Display masked entries in config
  • Property mode set to 100755
File size: 21.5 KB
Line 
1#!/usr/bin/env python
2#
3# Copyright (c) 2006 Ondrej Palkovsky
4# Copyright (c) 2009 Martin Decky
5# Copyright (c) 2010 Jiri Svoboda
6# All rights reserved.
7#
8# Redistribution and use in source and binary forms, with or without
9# modification, are permitted provided that the following conditions
10# are met:
11#
12# - Redistributions of source code must retain the above copyright
13# notice, this list of conditions and the following disclaimer.
14# - Redistributions in binary form must reproduce the above copyright
15# notice, this list of conditions and the following disclaimer in the
16# documentation and/or other materials provided with the distribution.
17# - The name of the author may not be used to endorse or promote products
18# derived from this software without specific prior written permission.
19#
20# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
21# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
22# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
23# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
24# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
25# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
26# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
29# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30#
31
32"""
33HelenOS configuration system
34"""
35
36import sys
37import os
38import re
39import time
40import subprocess
41import xtui
42import random
43
44ARGPOS_RULES = 1
45ARGPOS_PRESETS_DIR = 2
46ARGPOS_CHOICE = 3
47ARGPOS_PRESET = 4
48ARGPOS_MASK_PLATFORM = 3
49
50RULES_FILE = sys.argv[ARGPOS_RULES]
51MAKEFILE = 'Makefile.config'
52MACROS = 'config.h'
53PRESETS_DIR = sys.argv[ARGPOS_PRESETS_DIR]
54
55class BinaryOp:
56 def __init__(self, operator, left, right):
57 assert operator in ('&', '|', '=', '!=')
58
59 self._operator = operator
60 self._left = left
61 self._right = right
62
63 def evaluate(self, config):
64 if self._operator == '&':
65 return self._left.evaluate(config) and \
66 self._right.evaluate(config)
67 if self._operator == '|':
68 return self._left.evaluate(config) or \
69 self._right.evaluate(config)
70
71 # '=' or '!='
72 if not self._left in config:
73 config_val = ''
74 else:
75 config_val = config[self._left]
76 if config_val == '*':
77 config_val = 'y'
78
79 if self._operator == '=':
80 return self._right == config_val
81 return self._right != config_val
82
83# Expression parser
84class CondParser:
85 TOKEN_EOE = 0
86 TOKEN_SPECIAL = 1
87 TOKEN_STRING = 2
88
89 def __init__(self, text):
90 self._text = text
91
92 def parse(self):
93 self._position = -1
94 self._next_char()
95 self._next_token()
96
97 res = self._parse_expr()
98 if self._token_type != self.TOKEN_EOE:
99 self._error("Expected end of expression")
100 return res
101
102 def _next_char(self):
103 self._position += 1
104 if self._position >= len(self._text):
105 self._char = None
106 else:
107 self._char = self._text[self._position]
108 self._is_special_char = self._char in \
109 ('&', '|', '=', '!', '(', ')')
110
111 def _error(self, msg):
112 raise RuntimeError("Error parsing expression: %s:\n%s\n%s^" %
113 (msg, self._text, " " * self._token_position))
114
115 def _next_token(self):
116 self._token_position = self._position
117
118 # End of expression
119 if self._char == None:
120 self._token = None
121 self._token_type = self.TOKEN_EOE
122 return
123
124 # '&', '|', '=', '!=', '(', ')'
125 if self._is_special_char:
126 self._token = self._char
127 self._next_char()
128 if self._token == '!':
129 if self._char != '=':
130 self._error("Expected '='")
131 self._token += self._char
132 self._next_char()
133 self._token_type = self.TOKEN_SPECIAL
134 return
135
136 # <var> or <val>
137 self._token = ''
138 self._token_type = self.TOKEN_STRING
139 while True:
140 self._token += self._char
141 self._next_char()
142 if self._is_special_char or self._char == None:
143 break
144
145 def _parse_expr(self):
146 """ <expr> ::= <or_expr> ('&' <or_expr>)* """
147
148 left = self._parse_or_expr()
149 while self._token == '&':
150 self._next_token()
151 left = BinaryOp('&', left, self._parse_or_expr())
152 return left
153
154 def _parse_or_expr(self):
155 """ <or_expr> ::= <factor> ('|' <factor>)* """
156
157 left = self._parse_factor()
158 while self._token == '|':
159 self._next_token()
160 left = BinaryOp('|', left, self._parse_factor())
161 return left
162
163 def _parse_factor(self):
164 """ <factor> ::= <var> <cond> | '(' <expr> ')' """
165
166 if self._token == '(':
167 self._next_token()
168 res = self._parse_expr()
169 if self._token != ')':
170 self._error("Expected ')'")
171 self._next_token()
172 return res
173
174 if self._token_type == self.TOKEN_STRING:
175 var = self._token
176 self._next_token()
177 return self._parse_cond(var)
178
179 self._error("Expected '(' or <var>")
180
181 def _parse_cond(self, var):
182 """ <cond> ::= '=' <val> | '!=' <val> """
183
184 if self._token not in ('=', '!='):
185 self._error("Expected '=' or '!='")
186
187 oper = self._token
188 self._next_token()
189
190 if self._token_type != self.TOKEN_STRING:
191 self._error("Expected <val>")
192
193 val = self._token
194 self._next_token()
195
196 return BinaryOp(oper, var, val)
197
198def read_config(fname, config):
199 "Read saved values from last configuration run or a preset file"
200
201 inf = open(fname, 'r')
202
203 for line in inf:
204 res = re.match(r'^(?:#!# )?([^#]\w*)\s*=\s*(.*?)\s*$', line)
205 if res:
206 config[res.group(1)] = res.group(2)
207
208 inf.close()
209
210def parse_rules(fname, rules):
211 "Parse rules file"
212
213 inf = open(fname, 'r')
214
215 name = ''
216 choices = []
217
218 for line in inf:
219
220 if line.startswith('!'):
221 # Ask a question
222 res = re.search(r'!\s*(?:\[(.*?)\])?\s*([^\s]+)\s*\((.*)\)\s*$', line)
223
224 if not res:
225 raise RuntimeError("Weird line: %s" % line)
226
227 cond = res.group(1)
228 if cond:
229 cond = CondParser(cond).parse()
230 varname = res.group(2)
231 vartype = res.group(3)
232
233 rules.append((varname, vartype, name, choices, cond))
234 name = ''
235 choices = []
236 continue
237
238 if line.startswith('@'):
239 # Add new line into the 'choices' array
240 res = re.match(r'@\s*(?:\[(.*?)\])?\s*"(.*?)"\s*(.*)$', line)
241
242 if not res:
243 raise RuntimeError("Bad line: %s" % line)
244
245 choices.append((res.group(2), res.group(3)))
246 continue
247
248 if line.startswith('%'):
249 # Name of the option
250 name = line[1:].strip()
251 continue
252
253 if line.startswith('#') or (line == '\n'):
254 # Comment or empty line
255 continue
256
257
258 raise RuntimeError("Unknown syntax: %s" % line)
259
260 inf.close()
261
262def yes_no(default):
263 "Return '*' if yes, ' ' if no"
264
265 if default == 'y':
266 return '*'
267
268 return ' '
269
270def subchoice(screen, name, choices, default):
271 "Return choice of choices"
272
273 maxkey = 0
274 for key, val in choices:
275 length = len(key)
276 if (length > maxkey):
277 maxkey = length
278
279 options = []
280 position = None
281 cnt = 0
282 for key, val in choices:
283 if (default) and (key == default):
284 position = cnt
285
286 options.append(" %-*s %s " % (maxkey, key, val))
287 cnt += 1
288
289 (button, value) = xtui.choice_window(screen, name, 'Choose value', options, position)
290
291 if button == 'cancel':
292 return None
293
294 return choices[value][0]
295
296## Infer and verify configuration values.
297#
298# Augment @a config with values that can be inferred, purge invalid ones
299# and verify that all variables have a value (previously specified or inferred).
300#
301# @param config Configuration to work on
302# @param rules Rules
303#
304# @return True if configuration is complete and valid, False
305# otherwise.
306#
307def infer_verify_choices(config, rules):
308 "Infer and verify configuration values."
309
310 for rule in rules:
311 varname, vartype, name, choices, cond = rule
312
313 if cond and not cond.evaluate(config):
314 continue
315
316 if not varname in config:
317 value = None
318 else:
319 value = config[varname]
320
321 if not validate_rule_value(rule, value):
322 value = None
323
324 default = get_default_rule(rule)
325
326 #
327 # If we don't have a value but we do have
328 # a default, use it.
329 #
330 if value == None and default != None:
331 value = default
332 config[varname] = default
333
334 if not varname in config:
335 return False
336
337 return True
338
339## Fill the configuration with random (but valid) values.
340#
341# The random selection takes next rule and if the condition does
342# not violate existing configuration, random value of the variable
343# is selected.
344# This happens recursively as long as there are more rules.
345# If a conflict is found, we backtrack and try other settings of the
346# variable or ignoring the variable altogether.
347#
348# @param config Configuration to work on
349# @param rules Rules
350# @param start_index With which rule to start (initial call must specify 0 here).
351# @return True if able to find a valid configuration
352def random_choices(config, rules, start_index):
353 "Fill the configuration with random (but valid) values."
354 if start_index >= len(rules):
355 return True
356
357 varname, vartype, name, choices, cond = rules[start_index]
358
359 # First check that this rule would make sense
360 if cond and not cond.evaluate(config):
361 return random_choices(config, rules, start_index + 1)
362
363 # Remember previous choices for backtracking
364 yes_no = 0
365 choices_indexes = range(0, len(choices))
366 random.shuffle(choices_indexes)
367
368 # Remember current configuration value
369 old_value = None
370 try:
371 old_value = config[varname]
372 except KeyError:
373 old_value = None
374
375 # For yes/no choices, we ran the loop at most 2 times, for select
376 # choices as many times as there are options.
377 try_counter = 0
378 while True:
379 if vartype == 'choice':
380 if try_counter >= len(choices_indexes):
381 break
382 value = choices[choices_indexes[try_counter]][0]
383 elif vartype == 'y' or vartype == 'n':
384 if try_counter > 0:
385 break
386 value = vartype
387 elif vartype == 'y/n' or vartype == 'n/y':
388 if try_counter == 0:
389 yes_no = random.randint(0, 1)
390 elif try_counter == 1:
391 yes_no = 1 - yes_no
392 else:
393 break
394 if yes_no == 0:
395 value = 'n'
396 else:
397 value = 'y'
398 else:
399 raise RuntimeError("Unknown variable type: %s" % vartype)
400
401 config[varname] = value
402
403 ok = random_choices(config, rules, start_index + 1)
404 if ok:
405 return True
406
407 try_counter = try_counter + 1
408
409 # Restore the old value and backtrack
410 # (need to delete to prevent "ghost" variables that do not exist under
411 # certain configurations)
412 config[varname] = old_value
413 if old_value is None:
414 del config[varname]
415
416 return random_choices(config, rules, start_index + 1)
417
418
419## Get default value from a rule.
420def get_default_rule(rule):
421 varname, vartype, name, choices, cond = rule
422
423 default = None
424
425 if vartype == 'choice':
426 # If there is just one option, use it
427 if len(choices) == 1:
428 default = choices[0][0]
429 elif vartype == 'y':
430 default = '*'
431 elif vartype == 'n':
432 default = 'n'
433 elif vartype == 'y/n':
434 default = 'y'
435 elif vartype == 'n/y':
436 default = 'n'
437 else:
438 raise RuntimeError("Unknown variable type: %s" % vartype)
439
440 return default
441
442## Get option from a rule.
443#
444# @param rule Rule for a variable
445# @param value Current value of the variable
446#
447# @return Option (string) to ask or None which means not to ask.
448#
449def get_rule_option(rule, value):
450 varname, vartype, name, choices, cond = rule
451
452 option = None
453
454 if vartype == 'choice':
455 # If there is just one option, don't ask
456 if len(choices) != 1:
457 if (value == None):
458 option = "? %s --> " % name
459 else:
460 option = " %s [%s] --> " % (name, value)
461 elif vartype == 'y':
462 pass
463 elif vartype == 'n':
464 pass
465 elif vartype == 'y/n':
466 option = " <%s> %s " % (yes_no(value), name)
467 elif vartype == 'n/y':
468 option =" <%s> %s " % (yes_no(value), name)
469 else:
470 raise RuntimeError("Unknown variable type: %s" % vartype)
471
472 return option
473
474## Check if variable value is valid.
475#
476# @param rule Rule for the variable
477# @param value Value of the variable
478#
479# @return True if valid, False if not valid.
480#
481def validate_rule_value(rule, value):
482 varname, vartype, name, choices, cond = rule
483
484 if value == None:
485 return True
486
487 if vartype == 'choice':
488 if not value in [choice[0] for choice in choices]:
489 return False
490 elif vartype == 'y':
491 if value != 'y':
492 return False
493 elif vartype == 'n':
494 if value != 'n':
495 return False
496 elif vartype == 'y/n':
497 if not value in ['y', 'n']:
498 return False
499 elif vartype == 'n/y':
500 if not value in ['y', 'n']:
501 return False
502 else:
503 raise RuntimeError("Unknown variable type: %s" % vartype)
504
505 return True
506
507def preprocess_config(config, rules):
508 "Preprocess configuration"
509
510 varname_mode = 'CONFIG_BFB_MODE'
511 varname_width = 'CONFIG_BFB_WIDTH'
512 varname_height = 'CONFIG_BFB_HEIGHT'
513
514 if varname_mode in config:
515 mode = config[varname_mode].partition('x')
516
517 config[varname_width] = mode[0]
518 rules.append((varname_width, 'choice', 'Default framebuffer width', None, None))
519
520 config[varname_height] = mode[2]
521 rules.append((varname_height, 'choice', 'Default framebuffer height', None, None))
522
523def create_output(mkname, mcname, config, rules):
524 "Create output configuration"
525
526 varname_strip = 'CONFIG_STRIP_REVISION_INFO'
527 strip_rev_info = (varname_strip in config) and (config[varname_strip] == 'y')
528
529 if strip_rev_info:
530 timestamp_unix = int(0)
531 else:
532 # TODO: Use commit timestamp instead of build time.
533 timestamp_unix = int(time.time())
534
535 timestamp = time.strftime("%Y-%m-%d %H:%M:%S", time.localtime(timestamp_unix))
536
537 sys.stderr.write("Fetching current revision identifier ... ")
538
539 try:
540 version = subprocess.Popen(['git', '-C', os.path.dirname(RULES_FILE), 'log', '-1', '--pretty=%h'], stdout = subprocess.PIPE).communicate()[0].decode().strip()
541 sys.stderr.write("ok\n")
542 except:
543 version = None
544 sys.stderr.write("failed\n")
545
546 if (not strip_rev_info) and (version is not None):
547 revision = version
548 else:
549 revision = None
550
551 outmk = open(mkname, 'w')
552 outmc = open(mcname, 'w')
553
554 outmk.write('#########################################\n')
555 outmk.write('## AUTO-GENERATED FILE, DO NOT EDIT!!! ##\n')
556 outmk.write('## Generated by: tools/config.py ##\n')
557 outmk.write('#########################################\n\n')
558
559 outmc.write('/***************************************\n')
560 outmc.write(' * AUTO-GENERATED FILE, DO NOT EDIT!!! *\n')
561 outmc.write(' * Generated by: tools/config.py *\n')
562 outmc.write(' ***************************************/\n\n')
563
564 defs = 'CONFIG_DEFS ='
565
566 for varname, vartype, name, choices, cond in rules:
567 if cond and not cond.evaluate(config):
568 continue
569
570 if not varname in config:
571 value = ''
572 else:
573 value = config[varname]
574 if (value == '*'):
575 value = 'y'
576
577 outmk.write('# %s\n%s = %s\n\n' % (name, varname, value))
578
579 if vartype in ["y", "n", "y/n", "n/y"]:
580 if value == "y":
581 outmc.write('/* %s */\n#define %s\n\n' % (name, varname))
582 defs += ' -D%s' % varname
583 else:
584 outmc.write('/* %s */\n#define %s %s\n#define %s_%s\n\n' % (name, varname, value, varname, value))
585 defs += ' -D%s=%s -D%s_%s' % (varname, value, varname, value)
586
587 if revision is not None:
588 outmk.write('REVISION = %s\n' % revision)
589 outmc.write('#define REVISION %s\n' % revision)
590 defs += ' "-DREVISION=%s"' % revision
591
592 outmk.write('TIMESTAMP_UNIX = %d\n' % timestamp_unix)
593 outmc.write('#define TIMESTAMP_UNIX %d\n' % timestamp_unix)
594 defs += ' "-DTIMESTAMP_UNIX=%d"' % timestamp_unix
595
596 outmk.write('TIMESTAMP = %s\n' % timestamp)
597 outmc.write('#define TIMESTAMP %s\n' % timestamp)
598 defs += ' "-DTIMESTAMP=%s"' % timestamp
599
600 outmk.write('%s\n' % defs)
601
602 outmk.close()
603 outmc.close()
604
605def sorted_dir(root):
606 list = os.listdir(root)
607 list.sort()
608 return list
609
610## Ask user to choose a configuration profile.
611#
612def choose_profile(root, fname, screen, config):
613 options = []
614 opt2path = {}
615 cnt = 0
616
617 # Look for profiles
618 for name in sorted_dir(root):
619 path = os.path.join(root, name)
620 canon = os.path.join(path, fname)
621
622 if os.path.isdir(path) and os.path.exists(canon) and os.path.isfile(canon):
623 subprofile = False
624
625 # Look for subprofiles
626 for subname in sorted_dir(path):
627 subpath = os.path.join(path, subname)
628 subcanon = os.path.join(subpath, fname)
629
630 if os.path.isdir(subpath) and os.path.exists(subcanon) and os.path.isfile(subcanon):
631 subprofile = True
632 options.append("%s (%s)" % (name, subname))
633 opt2path[cnt] = [name, subname]
634 cnt += 1
635
636 if not subprofile:
637 options.append(name)
638 opt2path[cnt] = [name]
639 cnt += 1
640
641 (button, value) = xtui.choice_window(screen, 'Load preconfigured defaults', 'Choose configuration profile', options, None)
642
643 if button == 'cancel':
644 return None
645
646 return opt2path[value]
647
648## Read presets from a configuration profile.
649#
650# @param profile Profile to load from (a list of string components)
651# @param config Output configuration
652#
653def read_presets(profile, config):
654 path = os.path.join(PRESETS_DIR, profile[0], MAKEFILE)
655 read_config(path, config)
656
657 if len(profile) > 1:
658 path = os.path.join(PRESETS_DIR, profile[0], profile[1], MAKEFILE)
659 read_config(path, config)
660
661## Parse profile name (relative OS path) into a list of components.
662#
663# @param profile_name Relative path (using OS separator)
664# @return List of components
665#
666def parse_profile_name(profile_name):
667 profile = []
668
669 head, tail = os.path.split(profile_name)
670 if head != '':
671 profile.append(head)
672
673 profile.append(tail)
674 return profile
675
676def main():
677 profile = None
678 config = {}
679 rules = []
680
681 # Parse rules file
682 parse_rules(RULES_FILE, rules)
683
684 if len(sys.argv) > ARGPOS_CHOICE:
685 choice = sys.argv[ARGPOS_CHOICE]
686 else:
687 choice = None
688
689 if len(sys.argv) > ARGPOS_PRESET:
690 preset = sys.argv[ARGPOS_PRESET]
691 else:
692 preset = None
693
694 mask_platform = (len(sys.argv) > ARGPOS_MASK_PLATFORM and sys.argv[ARGPOS_MASK_PLATFORM] == "--mask-platform")
695
696 # Input configuration file can be specified on command line
697 # otherwise configuration from previous run is used.
698 if preset is not None:
699 profile = parse_profile_name(preset)
700 read_presets(profile, config)
701 elif os.path.exists(MAKEFILE):
702 read_config(MAKEFILE, config)
703
704 # Default mode: check values and regenerate configuration files
705 if choice == 'default':
706 if (infer_verify_choices(config, rules)):
707 preprocess_config(config, rules)
708 create_output(MAKEFILE, MACROS, config, rules)
709 return 0
710
711 # Hands-off mode: check values and regenerate configuration files,
712 # but no interactive fallback
713 if choice == 'hands-off':
714 # We deliberately test this because we do not want
715 # to read implicitly any possible previous run configuration
716 if preset is None:
717 sys.stderr.write("Configuration error: No presets specified\n")
718 return 2
719
720 if (infer_verify_choices(config, rules)):
721 preprocess_config(config, rules)
722 create_output(MAKEFILE, MACROS, config, rules)
723 return 0
724
725 sys.stderr.write("Configuration error: The presets are ambiguous\n")
726 return 1
727
728 # Check mode: only check configuration
729 if choice == 'check':
730 if infer_verify_choices(config, rules):
731 return 0
732 return 1
733
734 # Random mode
735 if choice == 'random':
736 ok = random_choices(config, rules, 0)
737 if not ok:
738 sys.stderr.write("Internal error: unable to generate random config.\n")
739 return 2
740 if not infer_verify_choices(config, rules):
741 sys.stderr.write("Internal error: random configuration not consistent.\n")
742 return 2
743 preprocess_config(config, rules)
744 create_output(MAKEFILE, MACROS, config, rules)
745
746 return 0
747
748 screen = xtui.screen_init()
749 try:
750 selname = None
751 position = None
752 while True:
753
754 # Cancel out all values which have to be deduced
755 for varname, vartype, name, choices, cond in rules:
756 if (vartype == 'y') and (varname in config) and (config[varname] == '*'):
757 config[varname] = None
758
759 options = []
760 opt2row = {}
761 cnt = 0
762
763 if not mask_platform:
764 cnt += 1
765 options.append(" --- Load preconfigured defaults ... ")
766
767 for rule in rules:
768 varname, vartype, name, choices, cond = rule
769
770 if cond and not cond.evaluate(config):
771 continue
772
773 if mask_platform and (varname == "PLATFORM" or varname == "MACHINE" or varname == "COMPILER"):
774 rule = varname, vartype, "(locked) " + name, choices, cond
775
776 if varname == selname:
777 position = cnt
778
779 if not varname in config:
780 value = None
781 else:
782 value = config[varname]
783
784 if not validate_rule_value(rule, value):
785 value = None
786
787 default = get_default_rule(rule)
788
789 #
790 # If we don't have a value but we do have
791 # a default, use it.
792 #
793 if value == None and default != None:
794 value = default
795 config[varname] = default
796
797 option = get_rule_option(rule, value)
798 if option != None:
799 options.append(option)
800 else:
801 continue
802
803 opt2row[cnt] = (varname, vartype, name, choices)
804
805 cnt += 1
806
807 if (position != None) and (position >= len(options)):
808 position = None
809
810 (button, value) = xtui.choice_window(screen, 'HelenOS configuration', 'Choose configuration option', options, position)
811
812 if button == 'cancel':
813 return 'Configuration canceled'
814
815 if button == 'done':
816 if (infer_verify_choices(config, rules)):
817 break
818 else:
819 xtui.error_dialog(screen, 'Error', 'Some options have still undefined values. These options are marked with the "?" sign.')
820 continue
821
822 if value == 0 and not mask_platform:
823 profile = choose_profile(PRESETS_DIR, MAKEFILE, screen, config)
824 if profile != None:
825 read_presets(profile, config)
826 position = 1
827 continue
828
829 position = None
830 if not value in opt2row:
831 raise RuntimeError("Error selecting value: %s" % value)
832
833 (selname, seltype, name, choices) = opt2row[value]
834
835 if not selname in config:
836 value = None
837 else:
838 value = config[selname]
839
840 if mask_platform and (selname == "PLATFORM" or selname == "MACHINE" or selname == "COMPILER"):
841 continue
842
843 if seltype == 'choice':
844 config[selname] = subchoice(screen, name, choices, value)
845 elif (seltype == 'y/n') or (seltype == 'n/y'):
846 if config[selname] == 'y':
847 config[selname] = 'n'
848 else:
849 config[selname] = 'y'
850 finally:
851 xtui.screen_done(screen)
852
853 preprocess_config(config, rules)
854 create_output(MAKEFILE, MACROS, config, rules)
855 return 0
856
857if __name__ == '__main__':
858 sys.exit(main())
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