def populate_packages(d):
    bb.build.exec_func('package_do_split_gconvs', d)
    oe.package.populate_packages(d)

populate_packages(d)

def package_do_split_gconvs(d):
    import re
    if (d.getVar('PACKAGE_NO_GCONV') == '1'):
        bb.note("package requested not splitting gconvs")
        return

    if not d.getVar('PACKAGES'):
        return

    mlprefix = d.getVar("MLPREFIX") or ""

    bpn = d.getVar('BPN')
    libdir = d.getVar('libdir')
    if not libdir:
        bb.error("libdir not defined")
        return
    datadir = d.getVar('datadir')
    if not datadir:
        bb.error("datadir not defined")
        return

    gconv_libdir = oe.path.join(libdir, "gconv")
    charmap_dir = oe.path.join(datadir, "i18n", "charmaps")
    locales_dir = oe.path.join(datadir, "i18n", "locales")
    binary_locales_dir = d.getVar('localedir')

    def calc_gconv_deps(fn, pkg, file_regex, output_pattern, group):
        deps = []
        f = open(fn, "rb")
        c_re = re.compile(r'^copy "(.*)"')
        i_re = re.compile(r'^include "(\w+)".*')
        for l in f.readlines():
            l = l.decode("latin-1")
            m = c_re.match(l) or i_re.match(l)
            if m:
                dp = legitimize_package_name('%s%s-gconv-%s' % (mlprefix, bpn, m.group(1)))
                if not dp in deps:
                    deps.append(dp)
        f.close()
        if deps != []:
            d.setVar('RDEPENDS:%s' % pkg, " ".join(deps))
        if bpn != 'glibc':
            d.setVar('RPROVIDES:%s' % pkg, pkg.replace(bpn, 'glibc'))

    do_split_packages(d, gconv_libdir, file_regex=r'^(.*)\.so$', output_pattern=bpn+'-gconv-%s', \
        description='gconv module for character set %s', hook=calc_gconv_deps, \
        extra_depends=bpn+'-gconv')

    def calc_charmap_deps(fn, pkg, file_regex, output_pattern, group):
        deps = []
        f = open(fn, "rb")
        c_re = re.compile(r'^copy "(.*)"')
        i_re = re.compile(r'^include "(\w+)".*')
        for l in f.readlines():
            l = l.decode("latin-1")
            m = c_re.match(l) or i_re.match(l)
            if m:
                dp = legitimize_package_name('%s%s-charmap-%s' % (mlprefix, bpn, m.group(1)))
                if not dp in deps:
                    deps.append(dp)
        f.close()
        if deps != []:
            d.setVar('RDEPENDS:%s' % pkg, " ".join(deps))
        if bpn != 'glibc':
            d.setVar('RPROVIDES:%s' % pkg, pkg.replace(bpn, 'glibc'))

    do_split_packages(d, charmap_dir, file_regex=r'^(.*)\.gz$', output_pattern=bpn+'-charmap-%s', \
        description='character map for %s encoding', hook=calc_charmap_deps, extra_depends='')

    def calc_locale_deps(fn, pkg, file_regex, output_pattern, group):
        deps = []
        f = open(fn, "rb")
        c_re = re.compile(r'^copy "(.*)"')
        i_re = re.compile(r'^include "(\w+)".*')
        for l in f.readlines():
            l = l.decode("latin-1")
            m = c_re.match(l) or i_re.match(l)
            if m:
                dp = legitimize_package_name(mlprefix+bpn+'-localedata-%s' % m.group(1))
                if not dp in deps:
                    deps.append(dp)
        f.close()
        if deps != []:
            d.setVar('RDEPENDS:%s' % pkg, " ".join(deps))
        if bpn != 'glibc':
            d.setVar('RPROVIDES:%s' % pkg, pkg.replace(bpn, 'glibc'))

    do_split_packages(d, locales_dir, file_regex=r'(.*)', output_pattern=bpn+'-localedata-%s', \
        description='locale definition for %s', hook=calc_locale_deps, extra_depends='')
    d.setVar('PACKAGES', d.getVar('PACKAGES', False) + ' ' + d.getVar('MLPREFIX', False) + bpn + '-gconv')

    use_bin = d.getVar("GLIBC_INTERNAL_USE_BINARY_LOCALE")

    dot_re = re.compile(r"(.*)\.(.*)")

    # Read in supported locales and associated encodings
    supported = {}
    with open(oe.path.join(d.getVar('WORKDIR'), "SUPPORTED")) as f:
        for line in f.readlines():
            try:
                locale, charset = line.rstrip().split()
            except ValueError:
                continue
            supported[locale] = charset

    # GLIBC_GENERATE_LOCALES var specifies which locales to be generated. empty or "all" means all locales
    to_generate = d.getVar('GLIBC_GENERATE_LOCALES')
    if not to_generate or to_generate == 'all':
        to_generate = sorted(supported.keys())
    else:
        to_generate = to_generate.split()
        for locale in to_generate:
            if locale not in supported:
                if '.' in locale:
                    charset = locale.split('.')[1]
                else:
                    charset = 'UTF-8'
                    bb.warn("Unsupported locale '%s', assuming encoding '%s'" % (locale, charset))
                supported[locale] = charset

    def output_locale_source(name, pkgname, locale, encoding):
        d.setVar('RDEPENDS:%s' % pkgname, '%slocaledef %s-localedata-%s %s-charmap-%s' % \
        (mlprefix, mlprefix+bpn, legitimize_package_name(locale), mlprefix+bpn, legitimize_package_name(encoding)))
        d.setVar('pkg_postinst_ontarget:%s' % pkgname, d.getVar('locale_base_postinst_ontarget') \
        % (locale, encoding, locale))
        d.setVar('pkg_postrm:%s' % pkgname, d.getVar('locale_base_postrm') % \
        (locale, encoding, locale))

    def output_locale_binary_rdepends(name, pkgname, locale, encoding):
        dep = legitimize_package_name('%s-binary-localedata-%s' % (bpn, name))
        lcsplit = d.getVar('GLIBC_SPLIT_LC_PACKAGES')
        if lcsplit and int(lcsplit):
            d.appendVar('PACKAGES', ' ' + dep)
            d.setVar('ALLOW_EMPTY:%s' % dep, '1')
        d.setVar('RDEPENDS:%s' % pkgname, mlprefix + dep)

    commands = {}

    def output_locale_binary(name, pkgname, locale, encoding):
        treedir = oe.path.join(d.getVar("WORKDIR"), "locale-tree")
        ldlibdir = oe.path.join(treedir, d.getVar("base_libdir"))
        path = d.getVar("PATH")
        i18npath = oe.path.join(treedir, datadir, "i18n")
        gconvpath = oe.path.join(treedir, "iconvdata")
        outputpath = oe.path.join(treedir, binary_locales_dir)

        use_cross_localedef = d.getVar("LOCALE_GENERATION_WITH_CROSS-LOCALEDEF") or "0"
        if use_cross_localedef == "1":
            target_arch = d.getVar('TARGET_ARCH')
            locale_arch_options = { \
                "arc":     " --uint32-align=4 --little-endian ", \
                "arceb":   " --uint32-align=4 --big-endian ",    \
                "arm":     " --uint32-align=4 --little-endian ", \
                "armeb":   " --uint32-align=4 --big-endian ",    \
                "aarch64": " --uint32-align=4 --little-endian ",    \
                "aarch64_be": " --uint32-align=4 --big-endian ",    \
                "sh4":     " --uint32-align=4 --big-endian ",    \
                "powerpc": " --uint32-align=4 --big-endian ",    \
                "powerpc64": " --uint32-align=4 --big-endian ",  \
                "powerpc64le": " --uint32-align=4 --little-endian ",  \
                "mips":    " --uint32-align=4 --big-endian ",    \
                "mipsisa32r6":    " --uint32-align=4 --big-endian ",    \
                "mips64":  " --uint32-align=4 --big-endian ",    \
                "mipsisa64r6":  " --uint32-align=4 --big-endian ",    \
                "mipsel":  " --uint32-align=4 --little-endian ", \
                "mipsisa32r6el":  " --uint32-align=4 --little-endian ", \
                "mips64el":" --uint32-align=4 --little-endian ", \
                "mipsisa64r6el":" --uint32-align=4 --little-endian ", \
                "riscv64": " --uint32-align=4 --little-endian ", \
                "riscv32": " --uint32-align=4 --little-endian ", \
                "i586":    " --uint32-align=4 --little-endian ", \
                "i686":    " --uint32-align=4 --little-endian ", \
                "x86_64":  " --uint32-align=4 --little-endian ", \
                "loongarch64": " --uint32-align=4 --little-endian "  }

            if target_arch in locale_arch_options:
                localedef_opts = locale_arch_options[target_arch]
            else:
                bb.error("locale_arch_options not found for target_arch=" + target_arch)
                bb.fatal("unknown arch:" + target_arch + " for locale_arch_options")

            localedef_opts += " --force --no-hard-links --no-archive --prefix=%s \
                --inputfile=%s/%s/i18n/locales/%s --charmap=%s %s/%s --no-warnings=ascii" \
                % (treedir, treedir, datadir, locale, encoding, outputpath, name)

            cmd = "PATH=\"%s\" I18NPATH=\"%s\" GCONV_PATH=\"%s\" cross-localedef %s" % \
                (path, i18npath, gconvpath, localedef_opts)
        else: # earlier slower qemu way
            qemu = qemu_target_binary(d)
            localedef_opts = "--force --no-hard-links --no-archive --prefix=%s \
                --inputfile=%s/i18n/locales/%s --charmap=%s %s" \
                % (treedir, datadir, locale, encoding, name)

            qemu_options = d.getVar('QEMU_OPTIONS')

            cmd = "PSEUDO_RELOADED=YES PATH=\"%s\" I18NPATH=\"%s\" %s -L %s \
                -E LD_LIBRARY_PATH=%s %s %s${base_bindir}/localedef %s" % \
                (path, i18npath, qemu, treedir, ldlibdir, qemu_options, treedir, localedef_opts)

        commands["%s/%s" % (outputpath, name)] = cmd

        bb.note("generating locale %s (%s)" % (locale, encoding))

    def output_locale(name, locale, encoding):
        pkgname = d.getVar('MLPREFIX', False) + 'locale-base-' + legitimize_package_name(name)
        d.setVar('ALLOW_EMPTY:%s' % pkgname, '1')
        d.setVar('PACKAGES', '%s %s' % (pkgname, d.getVar('PACKAGES')))
        rprovides = ' %svirtual-locale-%s' % (mlprefix, legitimize_package_name(name))
        m = re.match(r"(.*)_(.*)", name)
        if m:
            rprovides += ' %svirtual-locale-%s' % (mlprefix, m.group(1))
        d.setVar('RPROVIDES:%s' % pkgname, rprovides)

        if use_bin == "compile":
            output_locale_binary_rdepends(name, pkgname, locale, encoding)
            output_locale_binary(name, pkgname, locale, encoding)
        elif use_bin == "precompiled":
            output_locale_binary_rdepends(name, pkgname, locale, encoding)
        else:
            output_locale_source(name, pkgname, locale, encoding)

    if use_bin == "compile":
        bb.note("preparing tree for binary locale generation")
        bb.build.exec_func("do_prep_locale_tree", d)

    utf8_only = int(d.getVar('LOCALE_UTF8_ONLY') or 0)
    utf8_is_default = int(d.getVar('LOCALE_UTF8_IS_DEFAULT') or 0)

    encodings = {}
    for locale in to_generate:
        charset = supported[locale]
        if utf8_only and charset != 'UTF-8':
            continue

        m = dot_re.match(locale)
        if m:
            base = m.group(1)
        else:
            base = locale

        # Non-precompiled locales may be renamed so that the default
        # (non-suffixed) encoding is always UTF-8, i.e., instead of en_US and
        # en_US.UTF-8, we have en_US and en_US.ISO-8859-1. This implicitly
        # contradicts SUPPORTED.
        if use_bin == "precompiled" or not utf8_is_default:
            output_locale(locale, base, charset)
        else:
            if charset == 'UTF-8':
                output_locale(base, base, charset)
            else:
                output_locale('%s.%s' % (base, charset), base, charset)

    def metapkg_hook(file, pkg, pattern, format, basename):
        name = basename.split('/', 1)[0]
        metapkg = legitimize_package_name('%s-binary-localedata-%s' % (mlprefix+bpn, name))
        d.appendVar('RDEPENDS:%s' % metapkg, ' ' + pkg)

    if use_bin == "compile":
        makefile = oe.path.join(d.getVar("WORKDIR"), "locale-tree", "Makefile")
        with open(makefile, "w") as m:
            m.write("all: %s\n\n" % " ".join(commands.keys()))
            total = len(commands)
            for i, (maketarget, makerecipe) in enumerate(commands.items()):
                m.write(maketarget + ":\n")
                m.write("\t@echo 'Progress %d/%d'\n" % (i, total))
                m.write("\t" + makerecipe + "\n\n")
        d.setVar("EXTRA_OEMAKE", "-C %s ${PARALLEL_MAKE}" % (os.path.dirname(makefile)))
        d.setVarFlag("oe_runmake", "progress", r"outof:Progress\s(\d+)/(\d+)")
        bb.note("Executing binary locale generation makefile")
        bb.build.exec_func("oe_runmake", d)
        bb.note("collecting binary locales from locale tree")
        bb.build.exec_func("do_collect_bins_from_locale_tree", d)

    if use_bin in ('compile', 'precompiled'):
        lcsplit = d.getVar('GLIBC_SPLIT_LC_PACKAGES')
        if lcsplit and int(lcsplit):
            do_split_packages(d, binary_locales_dir, file_regex=r'^(.*/LC_\w+)', \
                output_pattern=bpn+'-binary-localedata-%s', \
                description='binary locale definition for %s', recursive=True,
                hook=metapkg_hook, extra_depends='', allow_dirs=True, match_path=True)
        else:
            do_split_packages(d, binary_locales_dir, file_regex=r'(.*)', \
                output_pattern=bpn+'-binary-localedata-%s', \
                description='binary locale definition for %s', extra_depends='', allow_dirs=True)
    else:
        bb.note("generation of binary locales disabled. this may break i18n!")

def legitimize_package_name(s):
    return oe.package.legitimize_package_name(s)

def qemu_target_binary(data):
    package_arch = data.getVar("PACKAGE_ARCH")
    qemu_target_binary = (data.getVar("QEMU_TARGET_BINARY_%s" % package_arch) or "")
    if qemu_target_binary:
        return qemu_target_binary

    target_arch = data.getVar("TARGET_ARCH")
    if target_arch in ("i486", "i586", "i686"):
        target_arch = "i386"
    elif target_arch == "powerpc":
        target_arch = "ppc"
    elif target_arch == "powerpc64":
        target_arch = "ppc64"
    elif target_arch == "powerpc64le":
        target_arch = "ppc64le"

    return "qemu-" + target_arch

def do_split_packages(d, root, file_regex, output_pattern, description, postinst=None, recursive=False, hook=None, extra_depends=None, aux_files_pattern=None, postrm=None, allow_dirs=False, prepend=False, match_path=False, aux_files_pattern_verbatim=None, allow_links=False, summary=None):
    """
    Used in .bb files to split up dynamically generated subpackages of a
    given package, usually plugins or modules.

    Arguments:
    root           -- the path in which to search
    file_regex     -- regular expression to match searched files. Use
                      parentheses () to mark the part of this expression
                      that should be used to derive the module name (to be
                      substituted where %s is used in other function
                      arguments as noted below)
    output_pattern -- pattern to use for the package names. Must include %s.
    description    -- description to set for each package. Must include %s.
    postinst       -- postinstall script to use for all packages (as a
                      string)
    recursive      -- True to perform a recursive search - default False
    hook           -- a hook function to be called for every match. The
                      function will be called with the following arguments
                      (in the order listed):
                        f: full path to the file/directory match
                        pkg: the package name
                        file_regex: as above
                        output_pattern: as above
                        modulename: the module name derived using file_regex
    extra_depends  -- extra runtime dependencies (RDEPENDS) to be set for
                      all packages. The default value of None causes a
                      dependency on the main package (${PN}) - if you do
                      not want this, pass '' for this parameter.
    aux_files_pattern -- extra item(s) to be added to FILES for each
                      package. Can be a single string item or a list of
                      strings for multiple items.  Must include %s.
    postrm         -- postrm script to use for all packages (as a string)
    allow_dirs     -- True allow directories to be matched - default False
    prepend        -- if True, prepend created packages to PACKAGES instead
                      of the default False which appends them
    match_path     -- match file_regex on the whole relative path to the
                      root rather than just the file name
    aux_files_pattern_verbatim -- extra item(s) to be added to FILES for
                      each package, using the actual derived module name
                      rather than converting it to something legal for a
                      package name. Can be a single string item or a list
                      of strings for multiple items. Must include %s.
    allow_links    -- True to allow symlinks to be matched - default False
    summary        -- Summary to set for each package. Must include %s;
                      defaults to description if not set.

    """

    dvar = d.getVar('PKGD')
    root = d.expand(root)
    output_pattern = d.expand(output_pattern)
    extra_depends = d.expand(extra_depends)

    # If the root directory doesn't exist, don't error out later but silently do
    # no splitting.
    if not os.path.exists(dvar + root):
        return []

    ml = d.getVar("MLPREFIX")
    if ml:
        if not output_pattern.startswith(ml):
            output_pattern = ml + output_pattern

        newdeps = []
        for dep in (extra_depends or "").split():
            if dep.startswith(ml):
                newdeps.append(dep)
            else:
                newdeps.append(ml + dep)
        if newdeps:
            extra_depends = " ".join(newdeps)


    packages = d.getVar('PACKAGES').split()
    split_packages = set()

    if postinst:
        postinst = '#!/bin/sh\n' + postinst + '\n'
    if postrm:
        postrm = '#!/bin/sh\n' + postrm + '\n'
    if not recursive:
        objs = os.listdir(dvar + root)
    else:
        objs = []
        for walkroot, dirs, files in os.walk(dvar + root):
            for file in files:
                relpath = os.path.join(walkroot, file).replace(dvar + root + '/', '', 1)
                if relpath:
                    objs.append(relpath)

    if extra_depends == None:
        extra_depends = d.getVar("PN")

    if not summary:
        summary = description

    for o in sorted(objs):
        import re, stat
        if match_path:
            m = re.match(file_regex, o)
        else:
            m = re.match(file_regex, os.path.basename(o))

        if not m:
            continue
        f = os.path.join(dvar + root, o)
        mode = os.lstat(f).st_mode
        if not (stat.S_ISREG(mode) or (allow_links and stat.S_ISLNK(mode)) or (allow_dirs and stat.S_ISDIR(mode))):
            continue
        on = oe.package.legitimize_package_name(m.group(1))
        pkg = output_pattern % on
        split_packages.add(pkg)
        if not pkg in packages:
            if prepend:
                packages = [pkg] + packages
            else:
                packages.append(pkg)
        oldfiles = d.getVar('FILES:' + pkg)
        newfile = os.path.join(root, o)
        # These names will be passed through glob() so if the filename actually
        # contains * or ? (rare, but possible) we need to handle that specially
        newfile = newfile.replace('*', '[*]')
        newfile = newfile.replace('?', '[?]')
        if not oldfiles:
            the_files = [newfile]
            if aux_files_pattern:
                if type(aux_files_pattern) is list:
                    for fp in aux_files_pattern:
                        the_files.append(fp % on)
                else:
                    the_files.append(aux_files_pattern % on)
            if aux_files_pattern_verbatim:
                if type(aux_files_pattern_verbatim) is list:
                    for fp in aux_files_pattern_verbatim:
                        the_files.append(fp % m.group(1))
                else:
                    the_files.append(aux_files_pattern_verbatim % m.group(1))
            d.setVar('FILES:' + pkg, " ".join(the_files))
        else:
            d.setVar('FILES:' + pkg, oldfiles + " " + newfile)
        if extra_depends != '':
            d.appendVar('RDEPENDS:' + pkg, ' ' + extra_depends)
        if not d.getVar('DESCRIPTION:' + pkg):
            d.setVar('DESCRIPTION:' + pkg, description % on)
        if not d.getVar('SUMMARY:' + pkg):
            d.setVar('SUMMARY:' + pkg, summary % on)
        if postinst:
            d.setVar('pkg_postinst:' + pkg, postinst)
        if postrm:
            d.setVar('pkg_postrm:' + pkg, postrm)
        if callable(hook):
            hook(f, pkg, file_regex, output_pattern, m.group(1))

    d.setVar('PACKAGES', ' '.join(packages))
    return list(split_packages)

