[U-Boot] [PATCH v3] tools: moveconfig: a tool to move CONFIGs from headers to defconfigs
Masahiro Yamada
yamada.masahiro at socionext.com
Wed May 20 04:30:49 CEST 2015
This tool was originally written for my local use to ease the task
of tons of CONFIG moves, but there have been some requests for
mainlining it.
So, I have tidied up the code with nicer comments, and here it is.
See the comment block of the script for usage.
The first draft was
http://patchwork.ozlabs.org/patch/430422/
Main updates are:
- Adapted to the single .config configuration
- Support colored log
- Support moving multiple options at once
(and take configs via input file only)
- Continue even if some boards fail
(Idea provided by Joe Hershberger)
- Add more options
- More comments and code cleanups
Signed-off-by: Masahiro Yamada <yamada.masahiro at socionext.com>
Signed-off-by: Joe Hershberger <joe.hershberger at ni.com>
---
Changes in v3:
- Drop the debug code "print msg"
- Change the CROSS_COMPILE mapping for sh
- Update comments about toolchains URLs
Changes in v2:
- Fix comments
- Map arc toolchain
- Add dry-run option
tools/moveconfig.py | 853 ++++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 853 insertions(+)
create mode 100755 tools/moveconfig.py
diff --git a/tools/moveconfig.py b/tools/moveconfig.py
new file mode 100755
index 0000000..7b788f1
--- /dev/null
+++ b/tools/moveconfig.py
@@ -0,0 +1,853 @@
+#!/usr/bin/env python2
+#
+# Author: Masahiro Yamada <yamada.masahiro at socionext.com>
+#
+# SPDX-License-Identifier: GPL-2.0+
+#
+
+"""
+Move config options from headers to defconfig files.
+
+Since Kconfig was introduced to U-Boot, we have worked on moving
+config options from headers to Kconfig (defconfig).
+
+This tool intends to help this tremendous work.
+
+
+Usage
+-----
+
+This tool takes one input file. (let's say 'recipe' file here.)
+The recipe describes the list of config options you want to move.
+Each line takes the form:
+<config_name> <type> <default>
+(the fields must be separated with whitespaces.)
+
+<config_name> is the name of config option.
+
+<type> is the type of the option. It must be one of bool, tristate,
+string, int, and hex.
+
+<default> is the default value of the option. It must be appropriate
+value corresponding to the option type. It must be either y or n for
+the bool type. Tristate options can also take m (although U-Boot has
+not supported the module feature).
+
+You can add two or more lines in the recipe file, so you can move
+multiple options at once.
+
+Let's say, for example, you want to move CONFIG_CMD_USB and
+CONFIG_SYS_TEXT_BASE.
+
+The type should be bool, hex, respectively. So, the recipe file
+should look like this:
+
+ $ cat recipe
+ CONFIG_CMD_USB bool n
+ CONFIG_SYS_TEXT_BASE hex 0x00000000
+
+And then run this tool giving the file name of the recipe
+
+ $ tools/moveconfig.py recipe
+
+The tool walks through all the defconfig files to move the config
+options specified by the recipe file.
+
+The log is also displayed on the terminal.
+
+Each line is printed in the format
+<defconfig_name> : <action>
+
+<defconfig_name> is the name of the defconfig
+(without the suffix _defconfig).
+
+<action> shows what the tool did for that defconfig.
+It looks like one of the followings:
+
+ - Move 'CONFIG_... '
+ This config option was moved to the defconfig
+
+ - Default value 'CONFIG_...'. Do nothing.
+ The value of this option is the same as default.
+ We do not have to add it to the defconfig.
+
+ - 'CONFIG_...' already exists in Kconfig. Do nothing.
+ This config option is already defined in Kconfig.
+ We do not need/want to touch it.
+
+ - Undefined. Do nothing.
+ This config option was not found in the config header.
+ Nothing to do.
+
+ - Failed to process. Skip.
+ An error occurred during processing this defconfig. Skipped.
+ (If -e option is passed, the tool exits immediately on error.)
+
+Finally, you will be asked, Clean up headers? [y/n]:
+
+If you say 'y' here, the unnecessary config defines are removed
+from the config headers (include/configs/*.h).
+It just uses the regex method, so you should not rely on it.
+Just in case, please do 'git diff' to see what happened.
+
+
+How does it works?
+------------------
+
+This tool runs configuration and builds include/autoconf.mk for every
+defconfig. The config options defined in Kconfig appear in the .config
+file (unless they are hidden because of unmet dependency.)
+On the other hand, the config options defined by board headers are seen
+in include/autoconf.mk. The tool looks for the specified options in both
+of them to decide the appropriate action for the options. If the option
+is found in the .config or the value is the same as the specified default,
+the option does not need to be touched. If the option is found in
+include/autoconf.mk, but not in the .config, and the value is different
+from the default, the tools adds the option to the defconfig.
+
+For faster processing, this tool handles multi-threading. It creates
+separate build directories where the out-of-tree build is run. The
+temporary build directories are automatically created and deleted as
+needed. The number of threads are chosen based on the number of the CPU
+cores of your system although you can change it via -j (--jobs) option.
+
+
+Toolchains
+----------
+
+Appropriate toolchain are necessary to generate include/autoconf.mk
+for all the architectures supported by U-Boot. Most of them are available
+at the kernel.org site, some are not provided by kernel.org.
+
+The default per-arch CROSS_COMPILE used by this tool is specified by
+the list below, CROSS_COMPILE. You may wish to update the list to
+use your own. Instead of modifying the list directly, you can give
+them via environments.
+
+
+Available options
+-----------------
+
+ -c, --color
+ Surround each portion of the log with escape sequences to display it
+ in color on the terminal.
+
+ -n, --dry-run
+ Peform a trial run that does not make any changes. It is useful to
+ see what is going to happen before one actually runs it.
+
+ -e, --exit-on-error
+ Exit immediately if Make exits with a non-zero status while processing
+ a defconfig file.
+
+ -j, --jobs
+ Specify the number of threads to run simultaneously. If not specified,
+ the number of threads is the same as the number of CPU cores.
+
+To see the complete list of supported options, run
+
+ $ tools/moveconfig.py -h
+
+"""
+
+import fnmatch
+import multiprocessing
+import optparse
+import os
+import re
+import shutil
+import subprocess
+import sys
+import tempfile
+import time
+
+SHOW_GNU_MAKE = 'scripts/show-gnu-make'
+SLEEP_TIME=0.03
+
+# Here is the list of cross-tools I use.
+# Most of them are available at kernel.org
+# (https://www.kernel.org/pub/tools/crosstool/files/bin/), except the followings:
+# arc: https://github.com/foss-for-synopsys-dwc-arc-processors/toolchain/releases
+# blackfin: http://sourceforge.net/projects/adi-toolchain/files/
+# nds32: http://osdk.andestech.com/packages/
+# nios2: https://sourcery.mentor.com/GNUToolchain/subscription42544
+# sh: http://sourcery.mentor.com/public/gnu_toolchain/sh-linux-gnu
+CROSS_COMPILE = {
+ 'arc': 'arc-linux-',
+ 'aarch64': 'aarch64-linux-',
+ 'arm': 'arm-unknown-linux-gnuebi-',
+ 'avr32': 'avr32-linux-',
+ 'blackfin': 'bfin-elf-',
+ 'm68k': 'm68k-linux-',
+ 'microblaze': 'microblaze-linux-',
+ 'mips': 'mips-linux-',
+ 'nds32': 'nds32le-linux-',
+ 'nios2': 'nios2-linux-',
+ 'openrisc': 'or32-linux-',
+ 'powerpc': 'powerpc-linux-',
+ 'sh': 'sh-linux-gnu-',
+ 'sparc': 'sparc-linux-',
+ 'x86': 'i386-linux-'
+}
+
+STATE_IDLE = 0
+STATE_DEFCONFIG = 1
+STATE_AUTOCONF = 2
+
+ACTION_MOVE = 0
+ACTION_DEFAULT_VALUE = 1
+ACTION_ALREADY_EXIST = 2
+ACTION_UNDEFINED = 3
+
+COLOR_BLACK = '0;30'
+COLOR_RED = '0;31'
+COLOR_GREEN = '0;32'
+COLOR_BROWN = '0;33'
+COLOR_BLUE = '0;34'
+COLOR_PURPLE = '0;35'
+COLOR_CYAN = '0;36'
+COLOR_LIGHT_GRAY = '0;37'
+COLOR_DARK_GRAY = '1;30'
+COLOR_LIGHT_RED = '1;31'
+COLOR_LIGHT_GREEN = '1;32'
+COLOR_YELLOW = '1;33'
+COLOR_LIGHT_BLUE = '1;34'
+COLOR_LIGHT_PURPLE = '1;35'
+COLOR_LIGHT_CYAN = '1;36'
+COLOR_WHITE = '1;37'
+
+### helper functions ###
+def get_devnull():
+ """Get the file object of '/dev/null' device."""
+ try:
+ devnull = subprocess.DEVNULL # py3k
+ except AttributeError:
+ devnull = open(os.devnull, 'wb')
+ return devnull
+
+def check_top_directory():
+ """Exit if we are not at the top of source directory."""
+ for f in ('README', 'Licenses'):
+ if not os.path.exists(f):
+ sys.exit('Please run at the top of source directory.')
+
+def get_make_cmd():
+ """Get the command name of GNU Make.
+
+ U-Boot needs GNU Make for building, but the command name is not
+ necessarily "make". (for example, "gmake" on FreeBSD).
+ Returns the most appropriate command name on your system.
+ """
+ process = subprocess.Popen([SHOW_GNU_MAKE], stdout=subprocess.PIPE)
+ ret = process.communicate()
+ if process.returncode:
+ sys.exit('GNU Make not found')
+ return ret[0].rstrip()
+
+def color_text(color_enabled, color, string):
+ """Return colored string."""
+ if color_enabled:
+ return '\033[' + color + 'm' + string + '\033[0m'
+ else:
+ return string
+
+def log_msg(color_enabled, color, defconfig, msg):
+ """Return the formated line for the log."""
+ return defconfig[:-len('_defconfig')].ljust(37) + ': ' + \
+ color_text(color_enabled, color, msg) + '\n'
+
+def update_cross_compile():
+ """Update per-arch CROSS_COMPILE via enviroment variables
+
+ The default CROSS_COMPILE values are available
+ in the CROSS_COMPILE list above.
+
+ You can override them via enviroment variables
+ CROSS_COMPILE_{ARCH}.
+
+ For example, if you want to override toolchain prefixes
+ for ARM and PowerPC, you can do as follows in your shell:
+
+ export CROSS_COMPILE_ARM=...
+ export CROSS_COMPILE_POWERPC=...
+ """
+ archs = []
+
+ for arch in os.listdir('arch'):
+ if os.path.exists(os.path.join('arch', arch, 'Makefile')):
+ archs.append(arch)
+
+ # arm64 is a special case
+ archs.append('aarch64')
+
+ for arch in archs:
+ env = 'CROSS_COMPILE_' + arch.upper()
+ cross_compile = os.environ.get(env)
+ if cross_compile:
+ CROSS_COMPILE[arch] = cross_compile
+
+def cleanup_one_header(header_path, patterns, dry_run):
+ """Clean regex-matched lines away from a file.
+
+ Arguments:
+ header_path: path to the cleaned file.
+ patterns: list of regex patterns. Any lines matching to these
+ patterns are deleted.
+ dry_run: make no changes, but still display log.
+ """
+ with open(header_path) as f:
+ lines = f.readlines()
+
+ matched = []
+ for i, line in enumerate(lines):
+ for pattern in patterns:
+ m = pattern.search(line)
+ if m:
+ print '%s: %s: %s' % (header_path, i + 1, line),
+ matched.append(i)
+ break
+
+ if dry_run or not matched:
+ return
+
+ with open(header_path, 'w') as f:
+ for i, line in enumerate(lines):
+ if not i in matched:
+ f.write(line)
+
+def cleanup_headers(config_attrs, dry_run):
+ """Delete config defines from board headers.
+
+ Arguments:
+ config_attrs: A list of dictionaris, each of them includes the name,
+ the type, and the default value of the target config.
+ dry_run: make no changes, but still display log.
+ """
+ while True:
+ choice = raw_input('Clean up headers? [y/n]: ').lower()
+ print choice
+ if choice == 'y' or choice == 'n':
+ break
+
+ if choice == 'n':
+ return
+
+ patterns = []
+ for config_attr in config_attrs:
+ config = config_attr['config']
+ patterns.append(re.compile(r'#\s*define\s+%s\W' % config))
+ patterns.append(re.compile(r'#\s*undef\s+%s\W' % config))
+
+ for (dirpath, dirnames, filenames) in os.walk('include'):
+ for filename in filenames:
+ if not fnmatch.fnmatch(filename, '*~'):
+ cleanup_one_header(os.path.join(dirpath, filename), patterns,
+ dry_run)
+
+### classes ###
+class KconfigParser:
+
+ """A parser of .config and include/autoconf.mk."""
+
+ re_arch = re.compile(r'CONFIG_SYS_ARCH="(.*)"')
+ re_cpu = re.compile(r'CONFIG_SYS_CPU="(.*)"')
+
+ def __init__(self, config_attrs, options, build_dir):
+ """Create a new parser.
+
+ Arguments:
+ config_attrs: A list of dictionaris, each of them includes the name,
+ the type, and the default value of the target config.
+ options: option flags.
+ build_dir: Build directory.
+ """
+ self.config_attrs = config_attrs
+ self.options = options
+ self.build_dir = build_dir
+
+ def get_cross_compile(self):
+ """Parse .config file and return CROSS_COMPILE.
+
+ Returns:
+ A string storing the compiler prefix for the architecture.
+ """
+ arch = ''
+ cpu = ''
+ dotconfig = os.path.join(self.build_dir, '.config')
+ for line in open(dotconfig):
+ m = self.re_arch.match(line)
+ if m:
+ arch = m.group(1)
+ continue
+ m = self.re_cpu.match(line)
+ if m:
+ cpu = m.group(1)
+
+ assert arch, 'Error: arch is not defined in %s' % defconfig
+
+ # fix-up for aarch64
+ if arch == 'arm' and cpu == 'armv8':
+ arch = 'aarch64'
+
+ return CROSS_COMPILE.get(arch, '')
+
+ def parse_one_config(self, config_attr, defconfig_lines,
+ dotconfig_lines, autoconf_lines):
+ """Parse .config, defconfig, include/autoconf.mk for one config.
+
+ This function looks for the config options in the lines from
+ defconfig, .config, and include/autoconf.mk in order to decide
+ which action should be taken for this defconfig.
+
+ Arguments:
+ config_attr: A dictionary including the name, the type,
+ and the default value of the target config.
+ defconfig_lines: lines from the original defconfig file.
+ dotconfig_lines: lines from the .config file.
+ autoconf_lines: lines from the include/autoconf.mk file.
+
+ Returns:
+ A tupple of the action for this defconfig and the line
+ matched for the config.
+ """
+ config = config_attr['config']
+ not_set = '# %s is not set' % config
+
+ if config_attr['type'] in ('bool', 'tristate') and \
+ config_attr['default'] == 'n':
+ default = not_set
+ else:
+ default = config + '=' + config_attr['default']
+
+ for line in defconfig_lines + dotconfig_lines:
+ line = line.rstrip()
+ if line.startswith(config + '=') or line == not_set:
+ return (ACTION_ALREADY_EXIST, line)
+
+ if config_attr['type'] in ('bool', 'tristate'):
+ value = not_set
+ else:
+ value = '(undefined)'
+
+ for line in autoconf_lines:
+ line = line.rstrip()
+ if line.startswith(config + '='):
+ value = line
+ break
+
+ if value == default:
+ action = ACTION_DEFAULT_VALUE
+ elif value == '(undefined)':
+ action = ACTION_UNDEFINED
+ else:
+ action = ACTION_MOVE
+
+ return (action, value)
+
+ def update_defconfig(self, defconfig):
+ """Parse files for the config options and update the defconfig.
+
+ This function parses the given defconfig, the generated .config
+ and include/autoconf.mk searching the target options.
+ Move the config option(s) to the defconfig or do nothing if unneeded.
+ Also, display the log to show what happened to this defconfig.
+
+ Arguments:
+ defconfig: defconfig name.
+ """
+
+ defconfig_path = os.path.join('configs', defconfig)
+ dotconfig_path = os.path.join(self.build_dir, '.config')
+ autoconf_path = os.path.join(self.build_dir, 'include', 'autoconf.mk')
+ results = []
+
+ with open(defconfig_path) as f:
+ defconfig_lines = f.readlines()
+
+ with open(dotconfig_path) as f:
+ dotconfig_lines = f.readlines()
+
+ with open(autoconf_path) as f:
+ autoconf_lines = f.readlines()
+
+ for config_attr in self.config_attrs:
+ result = self.parse_one_config(config_attr, defconfig_lines,
+ dotconfig_lines, autoconf_lines)
+ results.append(result)
+
+ log = ''
+
+ for (action, value) in results:
+ if action == ACTION_MOVE:
+ actlog = "Move '%s'" % value
+ log_color = COLOR_LIGHT_GREEN
+ elif action == ACTION_DEFAULT_VALUE:
+ actlog = "Default value '%s'. Do nothing." % value
+ log_color = COLOR_LIGHT_BLUE
+ elif action == ACTION_ALREADY_EXIST:
+ actlog = "'%s' already defined in Kconfig. Do nothing." % value
+ log_color = COLOR_LIGHT_PURPLE
+ elif action == ACTION_UNDEFINED:
+ actlog = "Undefined. Do nothing."
+ log_color = COLOR_DARK_GRAY
+ else:
+ sys.exit("Internal Error. This should not happen.")
+
+ log += log_msg(self.options.color, log_color, defconfig, actlog)
+
+ # Some threads are running in parallel.
+ # Print log in one shot to not mix up logs from different threads.
+ print log,
+
+ if not self.options.dry_run:
+ with open(defconfig_path, 'a') as f:
+ for (action, value) in results:
+ if action == ACTION_MOVE:
+ f.write(value + '\n')
+
+ os.remove(os.path.join(self.build_dir, 'include', 'config', 'auto.conf'))
+ os.remove(autoconf_path)
+
+class Slot:
+
+ """A slot to store a subprocess.
+
+ Each instance of this class handles one subprocess.
+ This class is useful to control multiple threads
+ for faster processing.
+ """
+
+ def __init__(self, config_attrs, options, devnull, make_cmd):
+ """Create a new process slot.
+
+ Arguments:
+ config_attrs: A list of dictionaris, each of them includes the name,
+ the type, and the default value of the target config.
+ options: option flags.
+ devnull: A file object of '/dev/null'.
+ make_cmd: command name of GNU Make.
+ """
+ self.options = options
+ self.build_dir = tempfile.mkdtemp()
+ self.devnull = devnull
+ self.make_cmd = (make_cmd, 'O=' + self.build_dir)
+ self.parser = KconfigParser(config_attrs, options, self.build_dir)
+ self.state = STATE_IDLE
+ self.failed_boards = []
+
+ def __del__(self):
+ """Delete the working directory
+
+ This function makes sure the temporary directory is cleaned away
+ even if Python suddenly dies due to error. It should be done in here
+ because it is guranteed the destructor is always invoked when the
+ instance of the class gets unreferenced.
+
+ If the subprocess is still running, wait until it finishes.
+ """
+ if self.state != STATE_IDLE:
+ while self.ps.poll() == None:
+ pass
+ shutil.rmtree(self.build_dir)
+
+ def add(self, defconfig):
+ """Assign a new subprocess for defconfig and add it to the slot.
+
+ If the slot is vacant, create a new subprocess for processing the
+ given defconfig and add it to the slot. Just returns False if
+ the slot is occupied (i.e. the current subprocess is still running).
+
+ Arguments:
+ defconfig: defconfig name.
+
+ Returns:
+ Return True on success or False on failure
+ """
+ if self.state != STATE_IDLE:
+ return False
+ cmd = list(self.make_cmd)
+ cmd.append(defconfig)
+ self.ps = subprocess.Popen(cmd, stdout=self.devnull)
+ self.defconfig = defconfig
+ self.state = STATE_DEFCONFIG
+ return True
+
+ def poll(self):
+ """Check the status of the subprocess and handle it as needed.
+
+ Returns True if the slot is vacant (i.e. in idle state).
+ If the configuration is successfully finished, assign a new
+ subprocess to build include/autoconf.mk.
+ If include/autoconf.mk is generated, invoke the parser to
+ parse the .config and the include/autoconf.mk, and then set the
+ slot back to the idle state.
+
+ Returns:
+ Return True if the subprocess is terminated, False otherwise
+ """
+ if self.state == STATE_IDLE:
+ return True
+
+ if self.ps.poll() == None:
+ return False
+
+ if self.ps.poll() != 0:
+
+ print >> sys.stderr, log_msg(self.options.color,
+ COLOR_LIGHT_RED,
+ self.defconfig,
+ "failed to process.")
+ if self.options.exit_on_error:
+ sys.exit("Exit on error.")
+ else:
+ # If --exit-on-error flag is not set,
+ # skip this board and continue.
+ # Record the failed board.
+ self.failed_boards.append(self.defconfig)
+ self.state = STATE_IDLE
+ return True
+
+ if self.state == STATE_AUTOCONF:
+ self.parser.update_defconfig(self.defconfig)
+ self.state = STATE_IDLE
+ return True
+
+ cross_compile = self.parser.get_cross_compile()
+ cmd = list(self.make_cmd)
+ if cross_compile:
+ cmd.append('CROSS_COMPILE=%s' % cross_compile)
+ cmd.append('include/config/auto.conf')
+ self.ps = subprocess.Popen(cmd, stdout=self.devnull)
+ self.state = STATE_AUTOCONF
+ return False
+
+ def get_failed_boards(self):
+ """Returns a list of failed boards (defconfigs) in this slot.
+ """
+ return self.failed_boards
+
+class Slots:
+
+ """Controller of the array of subprocess slots."""
+
+ def __init__(self, config_attrs, options):
+ """Create a new slots controller.
+
+ Arguments:
+ config_attrs: A list of dictionaris containing the name, the type,
+ and the default value of the target CONFIG.
+ options: option flags.
+ """
+ self.options = options
+ self.slots = []
+ devnull = get_devnull()
+ make_cmd = get_make_cmd()
+ for i in range(options.jobs):
+ self.slots.append(Slot(config_attrs, options, devnull, make_cmd))
+
+ def add(self, defconfig):
+ """Add a new subprocess if a vacant slot is found.
+
+ Arguments:
+ defconfig: defconfig name to be put into.
+
+ Returns:
+ Return True on success or False on failure
+ """
+ for slot in self.slots:
+ if slot.add(defconfig):
+ return True
+ return False
+
+ def available(self):
+ """Check if there is a vacant slot.
+
+ Returns:
+ Return True if at lease one vacant slot is found, False otherwise.
+ """
+ for slot in self.slots:
+ if slot.poll():
+ return True
+ return False
+
+ def empty(self):
+ """Check if all slots are vacant.
+
+ Returns:
+ Return True if all the slots are vacant, False otherwise.
+ """
+ ret = True
+ for slot in self.slots:
+ if not slot.poll():
+ ret = False
+ return ret
+
+ def show_failed_boards(self):
+ """Display all of the failed boards (defconfigs)."""
+ failed_boards = []
+
+ for slot in self.slots:
+ failed_boards += slot.get_failed_boards()
+
+ if len(failed_boards) > 0:
+ msg = [ "The following boards were not processed due to error:" ]
+ msg += failed_boards
+ for line in msg:
+ print >> sys.stderr, color_text(self.options.color,
+ COLOR_LIGHT_RED, line)
+
+def move_config(config_attrs, options):
+ """Move config options to defconfig files.
+
+ Arguments:
+ config_attrs: A list of dictionaris, each of them includes the name,
+ the type, and the default value of the target config.
+ options: option flags
+ """
+ check_top_directory()
+
+ if len(config_attrs) == 0:
+ print 'Nothing to do. exit.'
+ sys.exit(0)
+
+ print 'Move the following CONFIG options (jobs: %d)' % options.jobs
+ for config_attr in config_attrs:
+ print ' %s (type: %s, default: %s)' % (config_attr['config'],
+ config_attr['type'],
+ config_attr['default'])
+
+ # All the defconfig files to be processed
+ defconfigs = []
+ for (dirpath, dirnames, filenames) in os.walk('configs'):
+ dirpath = dirpath[len('configs') + 1:]
+ for filename in fnmatch.filter(filenames, '*_defconfig'):
+ defconfigs.append(os.path.join(dirpath, filename))
+
+ slots = Slots(config_attrs, options)
+
+ # Main loop to process defconfig files:
+ # Add a new subprocess into a vacant slot.
+ # Sleep if there is no available slot.
+ for defconfig in defconfigs:
+ while not slots.add(defconfig):
+ while not slots.available():
+ # No available slot: sleep for a while
+ time.sleep(SLEEP_TIME)
+
+ # wait until all the subprocesses finish
+ while not slots.empty():
+ time.sleep(SLEEP_TIME)
+
+ slots.show_failed_boards()
+
+ cleanup_headers(config_attrs, options.dry_run)
+
+def bad_recipe(filename, linenum, msg):
+ """Print error message with the file name and the line number and exit."""
+ sys.exit("%s: line %d: error : " % (filename, linenum) + msg)
+
+def parse_recipe(filename):
+ """Parse the recipe file and retrieve the config attributes.
+
+ This function parses the given recipe file and gets the name,
+ the type, and the default value of the target config options.
+
+ Arguments:
+ filename: path to file to be parsed.
+ Returns:
+ A list of dictionaris, each of them includes the name,
+ the type, and the default value of the target config.
+ """
+ config_attrs = []
+ linenum = 1
+
+ for line in open(filename):
+ tokens = line.split()
+ if len(tokens) != 3:
+ bad_recipe(filename, linenum,
+ "%d fields in this line. Each line must contain 3 fields"
+ % len(tokens))
+
+ (config, type, default) = tokens
+
+ # prefix the option name with CONFIG_ if missing
+ if not config.startswith('CONFIG_'):
+ config = 'CONFIG_' + config
+
+ # sanity check of default values
+ if type == 'bool':
+ if not default in ('y', 'n'):
+ bad_recipe(filename, linenum,
+ "default for bool type must be either y or n")
+ elif type == 'tristate':
+ if not default in ('y', 'm', 'n'):
+ bad_recipe(filename, linenum,
+ "default for tristate type must be y, m, or n")
+ elif type == 'string':
+ if default[0] != '"' or default[-1] != '"':
+ bad_recipe(filename, linenum,
+ "default for string type must be surrounded by double-quotations")
+ elif type == 'int':
+ try:
+ int(default)
+ except:
+ bad_recipe(filename, linenum,
+ "type is int, but default value is not decimal")
+ elif type == 'hex':
+ if len(default) < 2 or default[:2] != '0x':
+ bad_recipe(filename, linenum,
+ "default for hex type must be prefixed with 0x")
+ try:
+ int(default, 16)
+ except:
+ bad_recipe(filename, linenum,
+ "type is hex, but default value is not hexadecimal")
+ else:
+ bad_recipe(filename, linenum,
+ "unsupported type '%s'. type must be one of bool, tristate, string, int, hex"
+ % type)
+
+ config_attrs.append({'config': config, 'type': type, 'default': default})
+ linenum += 1
+
+ return config_attrs
+
+def main():
+ try:
+ cpu_count = multiprocessing.cpu_count()
+ except NotImplementedError:
+ cpu_count = 1
+
+ parser = optparse.OptionParser()
+ # Add options here
+ parser.add_option('-c', '--color', action='store_true', default=False,
+ help='display the log in color')
+ parser.add_option('-n', '--dry-run', action='store_true', default=False,
+ help='perform a trial run (show log with no changes)')
+ parser.add_option('-e', '--exit-on-error', action='store_true',
+ default=False,
+ help='exit immediately on any error')
+ parser.add_option('-j', '--jobs', type='int', default=cpu_count,
+ help='the number of jobs to run simultaneously')
+ parser.usage += ' recipe_file\n\n' + \
+ 'The recipe_file should describe config options you want to move.\n' + \
+ 'Each line should contain config_name, type, default_value\n\n' + \
+ 'Example:\n' + \
+ 'CONFIG_FOO bool n\n' + \
+ 'CONFIG_BAR int 100\n' + \
+ 'CONFIG_BAZ string "hello"\n'
+
+ (options, args) = parser.parse_args()
+
+ if len(args) != 1:
+ parser.print_usage()
+ sys.exit(1)
+
+ config_attrs = parse_recipe(args[0])
+
+ update_cross_compile()
+
+ move_config(config_attrs, options)
+
+if __name__ == '__main__':
+ main()
--
1.9.1
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