5 # SPDX-License-Identifier: GPL-2.0+
9 Move config options from headers to defconfig files.
11 Since Kconfig was introduced to U-Boot, we have worked on moving
12 config options from headers to Kconfig (defconfig).
14 This tool intends to help this tremendous work.
20 First, you must edit the Kconfig to add the menu entries for the configs
23 And then run this tool giving CONFIG names you want to move.
24 For example, if you want to move CONFIG_CMD_USB and CONFIG_SYS_TEXT_BASE,
25 simply type as follows:
27 $ tools/moveconfig.py CONFIG_CMD_USB CONFIG_SYS_TEXT_BASE
29 The tool walks through all the defconfig files and move the given CONFIGs.
31 The log is also displayed on the terminal.
33 The log is printed for each defconfig as follows:
41 <defconfig_name> is the name of the defconfig.
43 <action*> shows what the tool did for that defconfig.
44 It looks like one of the followings:
47 This config option was moved to the defconfig
49 - CONFIG_... is not defined in Kconfig. Do nothing.
50 The entry for this CONFIG was not found in Kconfig.
51 There are two common cases:
52 - You forgot to create an entry for the CONFIG before running
53 this tool, or made a typo in a CONFIG passed to this tool.
54 - The entry was hidden due to unmet 'depends on'.
55 This is correct behavior.
57 - 'CONFIG_...' is the same as the define in Kconfig. Do nothing.
58 The define in the config header matched the one in Kconfig.
59 We do not need to touch it.
61 - Undefined. Do nothing.
62 This config option was not found in the config header.
65 - Compiler is missing. Do nothing.
66 The compiler specified for this architecture was not found
67 in your PATH environment.
68 (If -e option is passed, the tool exits immediately.)
71 An error occurred during processing this defconfig. Skipped.
72 (If -e option is passed, the tool exits immediately on error.)
74 Finally, you will be asked, Clean up headers? [y/n]:
76 If you say 'y' here, the unnecessary config defines are removed
77 from the config headers (include/configs/*.h).
78 It just uses the regex method, so you should not rely on it.
79 Just in case, please do 'git diff' to see what happened.
85 This tool runs configuration and builds include/autoconf.mk for every
86 defconfig. The config options defined in Kconfig appear in the .config
87 file (unless they are hidden because of unmet dependency.)
88 On the other hand, the config options defined by board headers are seen
89 in include/autoconf.mk. The tool looks for the specified options in both
90 of them to decide the appropriate action for the options. If the given
91 config option is found in the .config, but its value does not match the
92 one from the board header, the config option in the .config is replaced
93 with the define in the board header. Then, the .config is synced by
94 "make savedefconfig" and the defconfig is updated with it.
96 For faster processing, this tool handles multi-threading. It creates
97 separate build directories where the out-of-tree build is run. The
98 temporary build directories are automatically created and deleted as
99 needed. The number of threads are chosen based on the number of the CPU
100 cores of your system although you can change it via -j (--jobs) option.
106 Appropriate toolchain are necessary to generate include/autoconf.mk
107 for all the architectures supported by U-Boot. Most of them are available
108 at the kernel.org site, some are not provided by kernel.org.
110 The default per-arch CROSS_COMPILE used by this tool is specified by
111 the list below, CROSS_COMPILE. You may wish to update the list to
112 use your own. Instead of modifying the list directly, you can give
113 them via environments.
120 Surround each portion of the log with escape sequences to display it
121 in color on the terminal.
124 Specify a file containing a list of defconfigs to move
127 Perform a trial run that does not make any changes. It is useful to
128 see what is going to happen before one actually runs it.
131 Exit immediately if Make exits with a non-zero status while processing
135 Do "make savedefconfig" forcibly for all the defconfig files.
136 If not specified, "make savedefconfig" only occurs for cases
137 where at least one CONFIG was moved.
140 Only cleanup the headers; skip the defconfig processing
143 Specify the number of threads to run simultaneously. If not specified,
144 the number of threads is the same as the number of CPU cores.
147 Show any build errors as boards are built
149 To see the complete list of supported options, run
151 $ tools/moveconfig.py -h
157 import multiprocessing
167 SHOW_GNU_MAKE = 'scripts/show-gnu-make'
170 # Here is the list of cross-tools I use.
171 # Most of them are available at kernel.org
172 # (https://www.kernel.org/pub/tools/crosstool/files/bin/), except the followings:
173 # arc: https://github.com/foss-for-synopsys-dwc-arc-processors/toolchain/releases
174 # blackfin: http://sourceforge.net/projects/adi-toolchain/files/
175 # nds32: http://osdk.andestech.com/packages/nds32le-linux-glibc-v1.tgz
176 # nios2: https://sourcery.mentor.com/GNUToolchain/subscription42545
177 # sh: http://sourcery.mentor.com/public/gnu_toolchain/sh-linux-gnu
179 # openrisc kernel.org toolchain is out of date, download latest one from
180 # http://opencores.org/or1k/OpenRISC_GNU_tool_chain#Prebuilt_versions
183 'aarch64': 'aarch64-linux-',
184 'arm': 'arm-unknown-linux-gnueabi-',
185 'avr32': 'avr32-linux-',
186 'blackfin': 'bfin-elf-',
187 'm68k': 'm68k-linux-',
188 'microblaze': 'microblaze-linux-',
189 'mips': 'mips-linux-',
190 'nds32': 'nds32le-linux-',
191 'nios2': 'nios2-linux-gnu-',
192 'openrisc': 'or1k-elf-',
193 'powerpc': 'powerpc-linux-',
194 'sh': 'sh-linux-gnu-',
195 'sparc': 'sparc-linux-',
202 STATE_SAVEDEFCONFIG = 3
213 COLOR_PURPLE = '0;35'
215 COLOR_LIGHT_GRAY = '0;37'
216 COLOR_DARK_GRAY = '1;30'
217 COLOR_LIGHT_RED = '1;31'
218 COLOR_LIGHT_GREEN = '1;32'
219 COLOR_YELLOW = '1;33'
220 COLOR_LIGHT_BLUE = '1;34'
221 COLOR_LIGHT_PURPLE = '1;35'
222 COLOR_LIGHT_CYAN = '1;36'
225 ### helper functions ###
227 """Get the file object of '/dev/null' device."""
229 devnull = subprocess.DEVNULL # py3k
230 except AttributeError:
231 devnull = open(os.devnull, 'wb')
234 def check_top_directory():
235 """Exit if we are not at the top of source directory."""
236 for f in ('README', 'Licenses'):
237 if not os.path.exists(f):
238 sys.exit('Please run at the top of source directory.')
240 def check_clean_directory():
241 """Exit if the source tree is not clean."""
242 for f in ('.config', 'include/config'):
243 if os.path.exists(f):
244 sys.exit("source tree is not clean, please run 'make mrproper'")
247 """Get the command name of GNU Make.
249 U-Boot needs GNU Make for building, but the command name is not
250 necessarily "make". (for example, "gmake" on FreeBSD).
251 Returns the most appropriate command name on your system.
253 process = subprocess.Popen([SHOW_GNU_MAKE], stdout=subprocess.PIPE)
254 ret = process.communicate()
255 if process.returncode:
256 sys.exit('GNU Make not found')
257 return ret[0].rstrip()
259 def color_text(color_enabled, color, string):
260 """Return colored string."""
262 # LF should not be surrounded by the escape sequence.
263 # Otherwise, additional whitespace or line-feed might be printed.
264 return '\n'.join([ '\033[' + color + 'm' + s + '\033[0m' if s else ''
265 for s in string.split('\n') ])
269 def update_cross_compile(color_enabled):
270 """Update per-arch CROSS_COMPILE via environment variables
272 The default CROSS_COMPILE values are available
273 in the CROSS_COMPILE list above.
275 You can override them via environment variables
276 CROSS_COMPILE_{ARCH}.
278 For example, if you want to override toolchain prefixes
279 for ARM and PowerPC, you can do as follows in your shell:
281 export CROSS_COMPILE_ARM=...
282 export CROSS_COMPILE_POWERPC=...
284 Then, this function checks if specified compilers really exist in your
289 for arch in os.listdir('arch'):
290 if os.path.exists(os.path.join('arch', arch, 'Makefile')):
293 # arm64 is a special case
294 archs.append('aarch64')
297 env = 'CROSS_COMPILE_' + arch.upper()
298 cross_compile = os.environ.get(env)
299 if not cross_compile:
300 cross_compile = CROSS_COMPILE.get(arch, '')
302 for path in os.environ["PATH"].split(os.pathsep):
303 gcc_path = os.path.join(path, cross_compile + 'gcc')
304 if os.path.isfile(gcc_path) and os.access(gcc_path, os.X_OK):
307 print >> sys.stderr, color_text(color_enabled, COLOR_YELLOW,
308 'warning: %sgcc: not found in PATH. %s architecture boards will be skipped'
309 % (cross_compile, arch))
312 CROSS_COMPILE[arch] = cross_compile
314 def cleanup_one_header(header_path, patterns, dry_run):
315 """Clean regex-matched lines away from a file.
318 header_path: path to the cleaned file.
319 patterns: list of regex patterns. Any lines matching to these
320 patterns are deleted.
321 dry_run: make no changes, but still display log.
323 with open(header_path) as f:
324 lines = f.readlines()
327 for i, line in enumerate(lines):
328 for pattern in patterns:
329 m = pattern.search(line)
331 print '%s: %s: %s' % (header_path, i + 1, line),
335 if dry_run or not matched:
338 with open(header_path, 'w') as f:
339 for i, line in enumerate(lines):
343 def cleanup_headers(configs, dry_run):
344 """Delete config defines from board headers.
347 configs: A list of CONFIGs to remove.
348 dry_run: make no changes, but still display log.
351 choice = raw_input('Clean up headers? [y/n]: ').lower()
353 if choice == 'y' or choice == 'n':
360 for config in configs:
361 patterns.append(re.compile(r'#\s*define\s+%s\W' % config))
362 patterns.append(re.compile(r'#\s*undef\s+%s\W' % config))
364 for dir in 'include', 'arch', 'board':
365 for (dirpath, dirnames, filenames) in os.walk(dir):
366 for filename in filenames:
367 if not fnmatch.fnmatch(filename, '*~'):
368 cleanup_one_header(os.path.join(dirpath, filename),
374 """Progress Indicator"""
376 def __init__(self, total):
377 """Create a new progress indicator.
380 total: A number of defconfig files to process.
386 """Increment the number of processed defconfig files."""
391 """Display the progress."""
392 print ' %d defconfigs out of %d\r' % (self.current, self.total),
397 """A parser of .config and include/autoconf.mk."""
399 re_arch = re.compile(r'CONFIG_SYS_ARCH="(.*)"')
400 re_cpu = re.compile(r'CONFIG_SYS_CPU="(.*)"')
402 def __init__(self, configs, options, build_dir):
403 """Create a new parser.
406 configs: A list of CONFIGs to move.
407 options: option flags.
408 build_dir: Build directory.
410 self.configs = configs
411 self.options = options
412 self.dotconfig = os.path.join(build_dir, '.config')
413 self.autoconf = os.path.join(build_dir, 'include', 'autoconf.mk')
414 self.config_autoconf = os.path.join(build_dir, 'include', 'config',
416 self.defconfig = os.path.join(build_dir, 'defconfig')
418 def get_cross_compile(self):
419 """Parse .config file and return CROSS_COMPILE.
422 A string storing the compiler prefix for the architecture.
423 Return a NULL string for architectures that do not require
424 compiler prefix (Sandbox and native build is the case).
425 Return None if the specified compiler is missing in your PATH.
426 Caller should distinguish '' and None.
430 for line in open(self.dotconfig):
431 m = self.re_arch.match(line)
435 m = self.re_cpu.match(line)
443 if arch == 'arm' and cpu == 'armv8':
446 return CROSS_COMPILE.get(arch, None)
448 def parse_one_config(self, config, dotconfig_lines, autoconf_lines):
449 """Parse .config, defconfig, include/autoconf.mk for one config.
451 This function looks for the config options in the lines from
452 defconfig, .config, and include/autoconf.mk in order to decide
453 which action should be taken for this defconfig.
456 config: CONFIG name to parse.
457 dotconfig_lines: lines from the .config file.
458 autoconf_lines: lines from the include/autoconf.mk file.
461 A tupple of the action for this defconfig and the line
462 matched for the config.
464 not_set = '# %s is not set' % config
466 for line in dotconfig_lines:
468 if line.startswith(config + '=') or line == not_set:
472 return (ACTION_NO_ENTRY, config)
474 for line in autoconf_lines:
476 if line.startswith(config + '='):
482 if old_val == new_val:
483 return (ACTION_NO_CHANGE, new_val)
485 # If this CONFIG is neither bool nor trisate
486 if old_val[-2:] != '=y' and old_val[-2:] != '=m' and old_val != not_set:
487 # tools/scripts/define2mk.sed changes '1' to 'y'.
488 # This is a problem if the CONFIG is int type.
489 # Check the type in Kconfig and handle it correctly.
490 if new_val[-2:] == '=y':
491 new_val = new_val[:-1] + '1'
493 return (ACTION_MOVE, new_val)
495 def update_dotconfig(self):
496 """Parse files for the config options and update the .config.
498 This function parses the generated .config and include/autoconf.mk
499 searching the target options.
500 Move the config option(s) to the .config as needed.
503 defconfig: defconfig name.
506 Return a tuple of (updated flag, log string).
507 The "updated flag" is True if the .config was updated, False
508 otherwise. The "log string" shows what happend to the .config.
514 with open(self.dotconfig) as f:
515 dotconfig_lines = f.readlines()
517 with open(self.autoconf) as f:
518 autoconf_lines = f.readlines()
520 for config in self.configs:
521 result = self.parse_one_config(config, dotconfig_lines,
523 results.append(result)
527 for (action, value) in results:
528 if action == ACTION_MOVE:
529 actlog = "Move '%s'" % value
530 log_color = COLOR_LIGHT_GREEN
531 elif action == ACTION_NO_ENTRY:
532 actlog = "%s is not defined in Kconfig. Do nothing." % value
533 log_color = COLOR_LIGHT_BLUE
534 elif action == ACTION_NO_CHANGE:
535 actlog = "'%s' is the same as the define in Kconfig. Do nothing." \
537 log_color = COLOR_LIGHT_PURPLE
539 sys.exit("Internal Error. This should not happen.")
541 log += color_text(self.options.color, log_color, actlog) + '\n'
543 with open(self.dotconfig, 'a') as f:
544 for (action, value) in results:
545 if action == ACTION_MOVE:
546 f.write(value + '\n')
549 self.results = results
550 os.remove(self.config_autoconf)
551 os.remove(self.autoconf)
553 return (updated, log)
555 def check_defconfig(self):
556 """Check the defconfig after savedefconfig
559 Return additional log if moved CONFIGs were removed again by
560 'make savedefconfig'.
565 with open(self.defconfig) as f:
566 defconfig_lines = f.readlines()
568 for (action, value) in self.results:
569 if action != ACTION_MOVE:
571 if not value + '\n' in defconfig_lines:
572 log += color_text(self.options.color, COLOR_YELLOW,
573 "'%s' was removed by savedefconfig.\n" %
580 """A slot to store a subprocess.
582 Each instance of this class handles one subprocess.
583 This class is useful to control multiple threads
584 for faster processing.
587 def __init__(self, configs, options, progress, devnull, make_cmd):
588 """Create a new process slot.
591 configs: A list of CONFIGs to move.
592 options: option flags.
593 progress: A progress indicator.
594 devnull: A file object of '/dev/null'.
595 make_cmd: command name of GNU Make.
597 self.options = options
598 self.progress = progress
599 self.build_dir = tempfile.mkdtemp()
600 self.devnull = devnull
601 self.make_cmd = (make_cmd, 'O=' + self.build_dir)
602 self.parser = KconfigParser(configs, options, self.build_dir)
603 self.state = STATE_IDLE
604 self.failed_boards = []
607 """Delete the working directory
609 This function makes sure the temporary directory is cleaned away
610 even if Python suddenly dies due to error. It should be done in here
611 because it is guaranteed the destructor is always invoked when the
612 instance of the class gets unreferenced.
614 If the subprocess is still running, wait until it finishes.
616 if self.state != STATE_IDLE:
617 while self.ps.poll() == None:
619 shutil.rmtree(self.build_dir)
621 def add(self, defconfig):
622 """Assign a new subprocess for defconfig and add it to the slot.
624 If the slot is vacant, create a new subprocess for processing the
625 given defconfig and add it to the slot. Just returns False if
626 the slot is occupied (i.e. the current subprocess is still running).
629 defconfig: defconfig name.
632 Return True on success or False on failure
634 if self.state != STATE_IDLE:
637 self.defconfig = defconfig
643 """Check the status of the subprocess and handle it as needed.
645 Returns True if the slot is vacant (i.e. in idle state).
646 If the configuration is successfully finished, assign a new
647 subprocess to build include/autoconf.mk.
648 If include/autoconf.mk is generated, invoke the parser to
649 parse the .config and the include/autoconf.mk, moving
650 config options to the .config as needed.
651 If the .config was updated, run "make savedefconfig" to sync
652 it, update the original defconfig, and then set the slot back
656 Return True if the subprocess is terminated, False otherwise
658 if self.state == STATE_IDLE:
661 if self.ps.poll() == None:
664 if self.ps.poll() != 0:
666 elif self.state == STATE_DEFCONFIG:
668 elif self.state == STATE_AUTOCONF:
669 self.do_savedefconfig()
670 elif self.state == STATE_SAVEDEFCONFIG:
671 self.update_defconfig()
673 sys.exit("Internal Error. This should not happen.")
675 return True if self.state == STATE_IDLE else False
677 def handle_error(self):
678 """Handle error cases."""
680 self.log += color_text(self.options.color, COLOR_LIGHT_RED,
681 "Failed to process.\n")
682 if self.options.verbose:
683 self.log += color_text(self.options.color, COLOR_LIGHT_CYAN,
684 self.ps.stderr.read())
687 def do_defconfig(self):
688 """Run 'make <board>_defconfig' to create the .config file."""
690 cmd = list(self.make_cmd)
691 cmd.append(self.defconfig)
692 self.ps = subprocess.Popen(cmd, stdout=self.devnull,
693 stderr=subprocess.PIPE)
694 self.state = STATE_DEFCONFIG
696 def do_autoconf(self):
697 """Run 'make include/config/auto.conf'."""
699 self.cross_compile = self.parser.get_cross_compile()
700 if self.cross_compile is None:
701 self.log += color_text(self.options.color, COLOR_YELLOW,
702 "Compiler is missing. Do nothing.\n")
706 cmd = list(self.make_cmd)
707 if self.cross_compile:
708 cmd.append('CROSS_COMPILE=%s' % self.cross_compile)
709 cmd.append('KCONFIG_IGNORE_DUPLICATES=1')
710 cmd.append('include/config/auto.conf')
711 self.ps = subprocess.Popen(cmd, stdout=self.devnull,
712 stderr=subprocess.PIPE)
713 self.state = STATE_AUTOCONF
715 def do_savedefconfig(self):
716 """Update the .config and run 'make savedefconfig'."""
718 (updated, log) = self.parser.update_dotconfig()
721 if not self.options.force_sync and not updated:
725 self.log += color_text(self.options.color, COLOR_LIGHT_GREEN,
726 "Syncing by savedefconfig...\n")
728 self.log += "Syncing by savedefconfig (forced by option)...\n"
730 cmd = list(self.make_cmd)
731 cmd.append('savedefconfig')
732 self.ps = subprocess.Popen(cmd, stdout=self.devnull,
733 stderr=subprocess.PIPE)
734 self.state = STATE_SAVEDEFCONFIG
736 def update_defconfig(self):
737 """Update the input defconfig and go back to the idle state."""
739 self.log += self.parser.check_defconfig()
740 orig_defconfig = os.path.join('configs', self.defconfig)
741 new_defconfig = os.path.join(self.build_dir, 'defconfig')
742 updated = not filecmp.cmp(orig_defconfig, new_defconfig)
745 self.log += color_text(self.options.color, COLOR_LIGHT_BLUE,
746 "defconfig was updated.\n")
748 if not self.options.dry_run and updated:
749 shutil.move(new_defconfig, orig_defconfig)
752 def finish(self, success):
753 """Display log along with progress and go to the idle state.
756 success: Should be True when the defconfig was processed
757 successfully, or False when it fails.
759 # output at least 30 characters to hide the "* defconfigs out of *".
760 log = self.defconfig.ljust(30) + '\n'
762 log += '\n'.join([ ' ' + s for s in self.log.split('\n') ])
763 # Some threads are running in parallel.
764 # Print log atomically to not mix up logs from different threads.
765 print >> (sys.stdout if success else sys.stderr), log
768 if self.options.exit_on_error:
769 sys.exit("Exit on error.")
770 # If --exit-on-error flag is not set, skip this board and continue.
771 # Record the failed board.
772 self.failed_boards.append(self.defconfig)
776 self.state = STATE_IDLE
778 def get_failed_boards(self):
779 """Returns a list of failed boards (defconfigs) in this slot.
781 return self.failed_boards
785 """Controller of the array of subprocess slots."""
787 def __init__(self, configs, options, progress):
788 """Create a new slots controller.
791 configs: A list of CONFIGs to move.
792 options: option flags.
793 progress: A progress indicator.
795 self.options = options
797 devnull = get_devnull()
798 make_cmd = get_make_cmd()
799 for i in range(options.jobs):
800 self.slots.append(Slot(configs, options, progress, devnull,
803 def add(self, defconfig):
804 """Add a new subprocess if a vacant slot is found.
807 defconfig: defconfig name to be put into.
810 Return True on success or False on failure
812 for slot in self.slots:
813 if slot.add(defconfig):
818 """Check if there is a vacant slot.
821 Return True if at lease one vacant slot is found, False otherwise.
823 for slot in self.slots:
829 """Check if all slots are vacant.
832 Return True if all the slots are vacant, False otherwise.
835 for slot in self.slots:
840 def show_failed_boards(self):
841 """Display all of the failed boards (defconfigs)."""
844 for slot in self.slots:
845 failed_boards += slot.get_failed_boards()
847 if len(failed_boards) > 0:
848 msg = [ "The following boards were not processed due to error:" ]
851 print >> sys.stderr, color_text(self.options.color,
852 COLOR_LIGHT_RED, line)
854 with open('moveconfig.failed', 'w') as f:
855 for board in failed_boards:
856 f.write(board + '\n')
858 def move_config(configs, options):
859 """Move config options to defconfig files.
862 configs: A list of CONFIGs to move.
863 options: option flags
865 if len(configs) == 0:
866 if options.force_sync:
867 print 'No CONFIG is specified. You are probably syncing defconfigs.',
869 print 'Neither CONFIG nor --force-sync is specified. Nothing will happen.',
871 print 'Move ' + ', '.join(configs),
872 print '(jobs: %d)\n' % options.jobs
874 if options.defconfigs:
875 defconfigs = [line.strip() for line in open(options.defconfigs)]
876 for i, defconfig in enumerate(defconfigs):
877 if not defconfig.endswith('_defconfig'):
878 defconfigs[i] = defconfig + '_defconfig'
879 if not os.path.exists(os.path.join('configs', defconfigs[i])):
880 sys.exit('%s - defconfig does not exist. Stopping.' %
883 # All the defconfig files to be processed
885 for (dirpath, dirnames, filenames) in os.walk('configs'):
886 dirpath = dirpath[len('configs') + 1:]
887 for filename in fnmatch.filter(filenames, '*_defconfig'):
888 defconfigs.append(os.path.join(dirpath, filename))
890 progress = Progress(len(defconfigs))
891 slots = Slots(configs, options, progress)
893 # Main loop to process defconfig files:
894 # Add a new subprocess into a vacant slot.
895 # Sleep if there is no available slot.
896 for defconfig in defconfigs:
897 while not slots.add(defconfig):
898 while not slots.available():
899 # No available slot: sleep for a while
900 time.sleep(SLEEP_TIME)
902 # wait until all the subprocesses finish
903 while not slots.empty():
904 time.sleep(SLEEP_TIME)
907 slots.show_failed_boards()
911 cpu_count = multiprocessing.cpu_count()
912 except NotImplementedError:
915 parser = optparse.OptionParser()
917 parser.add_option('-c', '--color', action='store_true', default=False,
918 help='display the log in color')
919 parser.add_option('-d', '--defconfigs', type='string',
920 help='a file containing a list of defconfigs to move')
921 parser.add_option('-n', '--dry-run', action='store_true', default=False,
922 help='perform a trial run (show log with no changes)')
923 parser.add_option('-e', '--exit-on-error', action='store_true',
925 help='exit immediately on any error')
926 parser.add_option('-s', '--force-sync', action='store_true', default=False,
927 help='force sync by savedefconfig')
928 parser.add_option('-H', '--headers-only', dest='cleanup_headers_only',
929 action='store_true', default=False,
930 help='only cleanup the headers')
931 parser.add_option('-j', '--jobs', type='int', default=cpu_count,
932 help='the number of jobs to run simultaneously')
933 parser.add_option('-v', '--verbose', action='store_true', default=False,
934 help='show any build errors as boards are built')
935 parser.usage += ' CONFIG ...'
937 (options, configs) = parser.parse_args()
939 if len(configs) == 0 and not options.force_sync:
943 # prefix the option name with CONFIG_ if missing
944 configs = [ config if config.startswith('CONFIG_') else 'CONFIG_' + config
945 for config in configs ]
947 check_top_directory()
949 check_clean_directory()
951 update_cross_compile(options.color)
953 if not options.cleanup_headers_only:
954 move_config(configs, options)
957 cleanup_headers(configs, options.dry_run)
959 if __name__ == '__main__':