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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 ${PN} for upgrade path from
single PN with all modules to PN depending on all new kernel-module-*
(From OE-Core rev: 51928b6b5ca0a46a9dcd754483a19af58b95fa18)
Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Martin Jansa
committed by
Richard Purdie
Richard Purdie
parent
93ec7b4d15
commit
2b8f2e770e
185
meta/classes/kernel-module-split.bbclass
Normal file
185
meta/classes/kernel-module-split.bbclass
Normal file
@@ -0,0 +1,185 @@
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pkg_postinst_modules () {
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if [ -z "$D" ]; then
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depmod -a ${KERNEL_VERSION}
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else
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depmodwrapper -a -b $D ${KERNEL_VERSION}
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fi
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}
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pkg_postrm_modules () {
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if [ -z "$D" ]; then
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depmod -a ${KERNEL_VERSION}
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else
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depmodwrapper -a -b $D ${KERNEL_VERSION}
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fi
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}
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autoload_postinst_fragment() {
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if [ x"$D" = "x" ]; then
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modprobe %s || true
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fi
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}
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do_install_append() {
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install -d ${D}${sysconfdir}/modules-load.d/ ${D}${sysconfdir}/modprobe.d/
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}
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PACKAGESPLITFUNCS_prepend = "split_kernel_module_packages "
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KERNEL_MODULES_META_PACKAGE ?= "kernel-modules"
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python split_kernel_module_packages () {
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import re
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modinfoexp = re.compile("([^=]+)=(.*)")
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kerverrexp = re.compile('^(.*-hh.*)[\.\+].*$')
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depmodpat0 = re.compile("^(.*\.k?o):..*$")
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depmodpat1 = re.compile("^(.*\.k?o):\s*(.*\.k?o)\s*$")
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depmodpat2 = re.compile("^(.*\.k?o):\s*(.*\.k?o)\s*\\\$")
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depmodpat3 = re.compile("^\t(.*\.k?o)\s*\\\$")
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depmodpat4 = re.compile("^\t(.*\.k?o)\s*$")
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def extract_modinfo(file):
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import tempfile, subprocess
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tempfile.tempdir = d.getVar("WORKDIR", True)
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tf = tempfile.mkstemp()
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tmpfile = tf[1]
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cmd = "%sobjcopy -j .modinfo -O binary %s %s" % (d.getVar("HOST_PREFIX", True) or "", file, tmpfile)
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subprocess.call(cmd, shell=True)
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f = open(tmpfile)
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l = f.read().split("\000")
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f.close()
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os.close(tf[0])
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os.unlink(tmpfile)
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vals = {}
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for i in l:
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m = modinfoexp.match(i)
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if not m:
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continue
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vals[m.group(1)] = m.group(2)
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return vals
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def parse_depmod():
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dvar = d.getVar('PKGD', True)
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kernelver = d.getVar('KERNEL_VERSION', True)
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kernelver_stripped = kernelver
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m = kerverrexp.match(kernelver)
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if m:
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kernelver_stripped = m.group(1)
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staging_kernel_dir = d.getVar("STAGING_KERNEL_DIR", True)
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system_map_file = "%s/boot/System.map-%s" % (dvar, kernelver)
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if not os.path.exists(system_map_file):
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system_map_file = "%s/System.map-%s" % (staging_kernel_dir, kernelver)
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if not os.path.exists(system_map_file):
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bb.fatal("System.map-%s does not exist in '%s/boot' nor STAGING_KERNEL_DIR '%s'" % (kernelver, dvar, staging_kernel_dir))
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cmd = "depmod -n -a -b %s -F %s %s" % (dvar, system_map_file, kernelver_stripped)
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f = os.popen(cmd, 'r')
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deps = {}
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line = f.readline()
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while line:
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if not depmodpat0.match(line):
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line = f.readline()
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continue
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m1 = depmodpat1.match(line)
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if m1:
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deps[m1.group(1)] = m1.group(2).split()
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else:
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m2 = depmodpat2.match(line)
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if m2:
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deps[m2.group(1)] = m2.group(2).split()
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line = f.readline()
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m3 = depmodpat3.match(line)
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while m3:
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deps[m2.group(1)].extend(m3.group(1).split())
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line = f.readline()
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m3 = depmodpat3.match(line)
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m4 = depmodpat4.match(line)
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deps[m2.group(1)].extend(m4.group(1).split())
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line = f.readline()
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f.close()
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return deps
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def get_dependencies(file, pattern, format):
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# file no longer includes PKGD
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file = file.replace(d.getVar('PKGD', True) or '', '', 1)
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# instead is prefixed with /lib/modules/${KERNEL_VERSION}
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file = file.replace("/lib/modules/%s/" % d.getVar('KERNEL_VERSION', True) or '', '', 1)
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if module_deps.has_key(file):
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dependencies = []
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for i in module_deps[file]:
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m = re.match(pattern, os.path.basename(i))
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if not m:
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continue
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on = legitimize_package_name(m.group(1))
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dependency_pkg = format % on
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dependencies.append(dependency_pkg)
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return dependencies
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return []
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def frob_metadata(file, pkg, pattern, format, basename):
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vals = extract_modinfo(file)
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dvar = d.getVar('PKGD', True)
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# If autoloading is requested, output /etc/modules-load.d/<name>.conf and append
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# appropriate modprobe commands to the postinst
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autoload = d.getVar('module_autoload_%s' % basename, True)
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if autoload:
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name = '%s/etc/modules-load.d/%s.conf' % (dvar, basename)
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f = open(name, 'w')
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for m in autoload.split():
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f.write('%s\n' % m)
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f.close()
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postinst = d.getVar('pkg_postinst_%s' % pkg, True)
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if not postinst:
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bb.fatal("pkg_postinst_%s not defined" % pkg)
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postinst += d.getVar('autoload_postinst_fragment', True) % autoload
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d.setVar('pkg_postinst_%s' % pkg, postinst)
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# Write out any modconf fragment
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modconf = d.getVar('module_conf_%s' % basename, True)
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if modconf:
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name = '%s/etc/modprobe.d/%s.conf' % (dvar, basename)
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f = open(name, 'w')
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f.write("%s\n" % modconf)
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f.close()
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files = d.getVar('FILES_%s' % pkg, True)
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files = "%s /etc/modules-load.d/%s.conf /etc/modprobe.d/%s.conf" % (files, basename, basename)
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d.setVar('FILES_%s' % pkg, files)
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if vals.has_key("description"):
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old_desc = d.getVar('DESCRIPTION_' + pkg, True) or ""
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d.setVar('DESCRIPTION_' + pkg, old_desc + "; " + vals["description"])
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rdepends = bb.utils.explode_dep_versions2(d.getVar('RDEPENDS_' + pkg, True) or "")
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for dep in get_dependencies(file, pattern, format):
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if not dep in rdepends:
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rdepends[dep] = []
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d.setVar('RDEPENDS_' + pkg, bb.utils.join_deps(rdepends, commasep=False))
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module_deps = parse_depmod()
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module_regex = '^(.*)\.k?o$'
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module_pattern = 'kernel-module-%s'
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postinst = d.getVar('pkg_postinst_modules', True)
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postrm = d.getVar('pkg_postrm_modules', True)
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modules = 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)))
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if modules:
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metapkg = d.getVar('KERNEL_MODULES_META_PACKAGE', True)
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d.appendVar('RDEPENDS_' + metapkg, ' '.join(modules))
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# If modules-load.d and modprobe.d are empty at this point, remove them to
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# avoid warnings. removedirs only raises an OSError if an empty
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# directory cannot be removed.
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dvar = d.getVar('PKGD', True)
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for dir in ["%s/etc/modprobe.d" % (dvar), "%s/etc/modules-load.d" % (dvar), "%s/etc" % (dvar)]:
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if len(os.listdir(dir)) == 0:
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os.rmdir(dir)
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}
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