kernel: extract functions for kernel modules to separate bbclass

* this way we can reuse the same functionality also for external modules
  including module_autoload_foo and module_conf_foo functionality
* MODULE_PACKAGES variable was removed (splited modules are now returned
  by do_split_packages
* KERNEL_MODULES_META_PACKAGE is used to append all splitted packages
  to RDEPENDS. In kernel.bbclass it's old "kernel-modules" in
  module.bbclass it defaults to ${PN} for upgrade path from
  single PN with all modules to PN depending on all new kernel-module-*

Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 1 insertions, 179 deletions

diff --git a/meta/classes/kernel.bbclass b/meta/classes/kernel.bbclass
index 5fe435681a..0a0430e266 100644
--- a/meta/classes/kernel.bbclass
+++ b/meta/classes/kernel.bbclass
@@ -1,4 +1,4 @@
-inherit linux-kernel-base module_strip
+inherit linux-kernel-base module_strip kernel-module-split
 
 PROVIDES += "virtual/kernel"
 DEPENDS += "virtual/${TARGET_PREFIX}gcc kmod-native depmodwrapper-cross"
@@ -281,190 +281,12 @@ else
 fi
 }
 
-pkg_postinst_modules () {
-if [ -z "$D" ]; then
-	depmod -a ${KERNEL_VERSION}
-else
-	depmodwrapper -a -b $D ${KERNEL_VERSION}
-fi
-}
-
-pkg_postrm_modules () {
-if [ -z "$D" ]; then
-	depmod -a ${KERNEL_VERSION}
-else
-	depmodwrapper -a -b $D ${KERNEL_VERSION}
-fi
-}
-
-autoload_postinst_fragment() {
-if [ x"$D" = "x" ]; then
-	modprobe %s || true
-fi
-}
-
 PACKAGESPLITFUNCS_prepend = "split_kernel_packages "
 
 python split_kernel_packages () {
-    import re
-
-    modinfoexp = re.compile("([^=]+)=(.*)")
-    kerverrexp = re.compile('^(.*-hh.*)[\.\+].*$')
-    depmodpat0 = re.compile("^(.*\.k?o):..*$")
-    depmodpat1 = re.compile("^(.*\.k?o):\s*(.*\.k?o)\s*$")
-    depmodpat2 = re.compile("^(.*\.k?o):\s*(.*\.k?o)\s*\\\$")
-    depmodpat3 = re.compile("^\t(.*\.k?o)\s*\\\$")
-    depmodpat4 = re.compile("^\t(.*\.k?o)\s*$")
-
-    def extract_modinfo(file):
-        import tempfile, subprocess
-        tempfile.tempdir = d.getVar("WORKDIR", True)
-        tf = tempfile.mkstemp()
-        tmpfile = tf[1]
-        cmd = "%sobjcopy -j .modinfo -O binary %s %s" % (d.getVar("HOST_PREFIX", True) or "", file, tmpfile)
-        subprocess.call(cmd, shell=True)
-        f = open(tmpfile)
-        l = f.read().split("\000")
-        f.close()
-        os.close(tf[0])
-        os.unlink(tmpfile)
-        vals = {}
-        for i in l:
-            m = modinfoexp.match(i)
-            if not m:
-                continue
-            vals[m.group(1)] = m.group(2)
-        return vals
-    
-    def parse_depmod():
-
-        dvar = d.getVar('PKGD', True)
-
-        kernelver = d.getVar('KERNEL_VERSION', True)
-        kernelver_stripped = kernelver
-        m = kerverrexp.match(kernelver)
-        if m:
-            kernelver_stripped = m.group(1)
-        cmd = "depmod -n -a -b %s -F %s/boot/System.map-%s %s" % (dvar, dvar, kernelver, kernelver_stripped)
-        f = os.popen(cmd, 'r')
-
-        deps = {}
-        line = f.readline()
-        while line:
-            if not depmodpat0.match(line):
-                line = f.readline()
-                continue
-            m1 = depmodpat1.match(line)
-            if m1:
-                deps[m1.group(1)] = m1.group(2).split()
-            else:
-                m2 = depmodpat2.match(line)
-                if m2:
-                    deps[m2.group(1)] = m2.group(2).split()
-                    line = f.readline()
-                    m3 = depmodpat3.match(line)
-                    while m3:
-                        deps[m2.group(1)].extend(m3.group(1).split())
-                        line = f.readline()
-                        m3 = depmodpat3.match(line)
-                    m4 = depmodpat4.match(line)
-                    deps[m2.group(1)].extend(m4.group(1).split())
-            line = f.readline()
-        f.close()
-        return deps
-    
-    def get_dependencies(file, pattern, format):
-        # file no longer includes PKGD
-        file = file.replace(d.getVar('PKGD', True) or '', '', 1)
-        # instead is prefixed with /lib/modules/${KERNEL_VERSION}
-        file = file.replace("/lib/modules/%s/" % d.getVar('KERNEL_VERSION', True) or '', '', 1)
-
-        if module_deps.has_key(file):
-            dependencies = []
-            for i in module_deps[file]:
-                m = re.match(pattern, os.path.basename(i))
-                if not m:
-                    continue
-                on = legitimize_package_name(m.group(1))
-                dependency_pkg = format % on
-                dependencies.append(dependency_pkg)
-            return dependencies
-        return []
-
-    def frob_metadata(file, pkg, pattern, format, basename):
-        vals = extract_modinfo(file)
-
-        dvar = d.getVar('PKGD', True)
-
-        # If autoloading is requested, output /etc/modules-load.d/<name>.conf and append
-        # appropriate modprobe commands to the postinst
-        autoload = d.getVar('module_autoload_%s' % basename, True)
-        if autoload:
-            name = '%s/etc/modules-load.d/%s.conf' % (dvar, basename)
-            f = open(name, 'w')
-            for m in autoload.split():
-                f.write('%s\n' % m)
-            f.close()
-            postinst = d.getVar('pkg_postinst_%s' % pkg, True)
-            if not postinst:
-                bb.fatal("pkg_postinst_%s not defined" % pkg)
-            postinst += d.getVar('autoload_postinst_fragment', True) % autoload
-            d.setVar('pkg_postinst_%s' % pkg, postinst)
-
-        # Write out any modconf fragment
-        modconf = d.getVar('module_conf_%s' % basename, True)
-        if modconf:
-            name = '%s/etc/modprobe.d/%s.conf' % (dvar, basename)
-            f = open(name, 'w')
-            f.write("%s\n" % modconf)
-            f.close()
-
-        files = d.getVar('FILES_%s' % pkg, True)
-        files = "%s /etc/modules-load.d/%s.conf /etc/modprobe.d/%s.conf" % (files, basename, basename)
-        d.setVar('FILES_%s' % pkg, files)
-
-        if vals.has_key("description"):
-            old_desc = d.getVar('DESCRIPTION_' + pkg, True) or ""
-            d.setVar('DESCRIPTION_' + pkg, old_desc + "; " + vals["description"])
-
-        rdepends = bb.utils.explode_dep_versions2(d.getVar('RDEPENDS_' + pkg, True) or "")
-        for dep in get_dependencies(file, pattern, format):
-            if not dep in rdepends:
-                rdepends[dep] = []
-        d.setVar('RDEPENDS_' + pkg, bb.utils.join_deps(rdepends, commasep=False))
-
-    module_deps = parse_depmod()
-    module_regex = '^(.*)\.k?o$'
-    module_pattern = 'kernel-module-%s'
-
-    postinst = d.getVar('pkg_postinst_modules', True)
-    postrm = d.getVar('pkg_postrm_modules', True)
-
     do_split_packages(d, root='/lib/firmware', file_regex='^(.*)\.bin$', output_pattern='kernel-firmware-%s', description='Firmware for %s', recursive=True, extra_depends='')
     do_split_packages(d, root='/lib/firmware', file_regex='^(.*)\.fw$', output_pattern='kernel-firmware-%s', description='Firmware for %s', recursive=True, extra_depends='')
     do_split_packages(d, root='/lib/firmware', file_regex='^(.*)\.cis$', output_pattern='kernel-firmware-%s', description='Firmware for %s', recursive=True, extra_depends='')
-    do_split_packages(d, root='/lib/modules', file_regex=module_regex, output_pattern=module_pattern, description='%s kernel module', postinst=postinst, postrm=postrm, recursive=True, hook=frob_metadata, extra_depends='kernel-%s' % (d.getVar("KERNEL_VERSION", True)))
-
-    # If modules-load.d and modprobe.d are empty at this point, remove them to
-    # avoid warnings. removedirs only raises an OSError if an empty
-    # directory cannot be removed.
-    dvar = d.getVar('PKGD', True)
-    for dir in ["%s/etc/modprobe.d" % (dvar), "%s/etc/modules-load.d" % (dvar), "%s/etc" % (dvar)]:
-        if len(os.listdir(dir)) == 0:
-            os.rmdir(dir)
-
-    metapkg = "kernel-modules"
-    blacklist = [ 'kernel-dev', 'kernel-image', 'kernel-base', 'kernel-vmlinux' ]
-    for l in module_deps.values():
-        for i in l:
-            pkg = module_pattern % legitimize_package_name(re.match(module_regex, os.path.basename(i)).group(1))
-            blacklist.append(pkg)
-    metapkg_rdepends = []
-    packages = d.getVar('PACKAGES', True).split()
-    for pkg in packages[1:]:
-        if not pkg in blacklist and not pkg in metapkg_rdepends:
-            metapkg_rdepends.append(pkg)
-    d.setVar('RDEPENDS_' + metapkg, ' '.join(metapkg_rdepends))
 }
 
 # Support checking the kernel size since some kernels need to reside in partitions