deiban packaging of linux kernel with sysmocom modifications
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#!/usr/bin/python3
import sys
import locale
import io
import os
import os.path
import subprocess
import re
from debian_linux import config
from debian_linux.debian import PackageDescription, PackageRelation, \
PackageRelationEntry, PackageRelationGroup, VersionLinux
from debian_linux.gencontrol import Gencontrol as Base, merge_packages, \
iter_featuresets
from debian_linux.utils import Templates, read_control
locale.setlocale(locale.LC_CTYPE, "C.UTF-8")
class Gencontrol(Base):
config_schema = {
'abi': {
'ignore-changes': config.SchemaItemList(),
},
'build': {
'debug-info': config.SchemaItemBoolean(),
'signed-code': config.SchemaItemBoolean(),
'vdso': config.SchemaItemBoolean(),
},
'description': {
'parts': config.SchemaItemList(),
},
'image': {
'bootloaders': config.SchemaItemList(),
'configs': config.SchemaItemList(),
'initramfs-generators': config.SchemaItemList(),
'check-size': config.SchemaItemInteger(),
'check-size-with-dtb': config.SchemaItemBoolean(),
'check-uncompressed-size': config.SchemaItemInteger(),
'depends': config.SchemaItemList(','),
'provides': config.SchemaItemList(','),
'suggests': config.SchemaItemList(','),
'recommends': config.SchemaItemList(','),
'conflicts': config.SchemaItemList(','),
'breaks': config.SchemaItemList(','),
},
'relations': {
},
'packages': {
'docs': config.SchemaItemBoolean(),
'headers-all': config.SchemaItemBoolean(),
'installer': config.SchemaItemBoolean(),
'libc-dev': config.SchemaItemBoolean(),
'tools-unversioned': config.SchemaItemBoolean(),
'tools-versioned': config.SchemaItemBoolean(),
'source': config.SchemaItemBoolean(),
}
}
env_flags = [
('DEBIAN_KERNEL_DISABLE_DEBUG', 'disable_debug', 'debug infos'),
('DEBIAN_KERNEL_DISABLE_INSTALLER', 'disable_installer', 'installer modules'),
('DEBIAN_KERNEL_DISABLE_SIGNED', 'disable_signed', 'signed code'),
]
def __init__(self, config_dirs=["debian/config"],
template_dirs=["debian/templates"]):
super(Gencontrol, self).__init__(
config.ConfigCoreHierarchy(self.config_schema, config_dirs),
Templates(template_dirs),
VersionLinux)
self.process_changelog()
self.config_dirs = config_dirs
for env, attr, desc in self.env_flags:
setattr(self, attr, False)
if os.getenv(env):
if self.changelog[0].distribution == 'UNRELEASED':
import warnings
warnings.warn(f'Disable {desc} on request ({env} set)')
setattr(self, attr, True)
else:
raise RuntimeError(
'Unable to disable {desc} in release build ({env} set)')
def _setup_makeflags(self, names, makeflags, data):
for src, dst, optional in names:
if src in data or not optional:
makeflags[dst] = data[src]
def _substitute_file(self, template, vars, target, append=False):
with open(target, 'a' if append else 'w') as f:
f.write(self.substitute(self.templates[template], vars))
def do_main_setup(self, vars, makeflags, extra):
super(Gencontrol, self).do_main_setup(vars, makeflags, extra)
makeflags.update({
'VERSION': self.version.linux_version,
'UPSTREAMVERSION': self.version.linux_upstream,
'ABINAME': self.abiname_version + self.abiname_part,
'SOURCEVERSION': self.version.complete,
})
makeflags['SOURCE_BASENAME'] = self.vars['source_basename']
# Prepare to generate debian/tests/control
self.tests_control = self.process_packages(
self.templates['tests-control.main'], vars)
self.tests_control_image = None
self.installer_packages = {}
if not self.disable_installer and self.config.merge('packages').get('installer', True):
# Add udebs using kernel-wedge
kw_env = os.environ.copy()
kw_env['KW_DEFCONFIG_DIR'] = 'debian/installer'
kw_env['KW_CONFIG_DIR'] = 'debian/installer'
kw_proc = subprocess.Popen(
['kernel-wedge', 'gen-control', vars['abiname']],
stdout=subprocess.PIPE,
env=kw_env)
if not isinstance(kw_proc.stdout, io.IOBase):
udeb_packages = read_control(io.open(kw_proc.stdout.fileno(),
closefd=False))
else:
udeb_packages = read_control(io.TextIOWrapper(kw_proc.stdout))
kw_proc.wait()
if kw_proc.returncode != 0:
raise RuntimeError('kernel-wedge exited with code %d' %
kw_proc.returncode)
# All architectures that have some installer udebs
arches = set()
for package in udeb_packages:
arches.update(package['Architecture'])
# Code-signing status for those architectures
# If we're going to build signed udebs later, don't actually
# generate udebs. Just test that we *can* build, so we find
# configuration errors before building linux-signed.
build_signed = {}
for arch in arches:
if not self.disable_signed:
build_signed[arch] = self.config.merge('build', arch) \
.get('signed-code', False)
else:
build_signed[arch] = False
for package in udeb_packages:
# kernel-wedge currently chokes on Build-Profiles so add it now
if any(build_signed[arch] for arch in package['Architecture']):
assert all(build_signed[arch]
for arch in package['Architecture'])
# XXX This is a hack to exclude the udebs from
# the package list while still being able to
# convince debhelper and kernel-wedge to go
# part way to building them.
package['Build-Profiles'] = (
'<pkg.linux.udeb-unsigned-test-build>')
else:
package['Build-Profiles'] = '<!stage1 !pkg.linux.nokernel>'
for arch in package['Architecture']:
self.installer_packages.setdefault(arch, []) \
.append(package)
def do_main_makefile(self, makefile, makeflags, extra):
for featureset in iter_featuresets(self.config):
makeflags_featureset = makeflags.copy()
makeflags_featureset['FEATURESET'] = featureset
cmds_source = ["$(MAKE) -f debian/rules.real source-featureset %s"
% makeflags_featureset]
makefile.add('source_%s_real' % featureset, cmds=cmds_source)
makefile.add('source_%s' % featureset,
['source_%s_real' % featureset])
makefile.add('source', ['source_%s' % featureset])
makeflags = makeflags.copy()
makeflags['ALL_FEATURESETS'] = ' '.join(iter_featuresets(self.config))
super(Gencontrol, self).do_main_makefile(makefile, makeflags, extra)
def do_main_packages(self, packages, vars, makeflags, extra):
packages.extend(self.process_packages(
self.templates["control.main"], self.vars))
if self.config.merge('packages').get('docs', True):
packages.extend(self.process_packages(
self.templates["control.docs"], self.vars))
if self.config.merge('packages').get('tools-unversioned', True):
packages.extend(self.process_packages(
self.templates["control.tools-unversioned"], self.vars))
if self.config.merge('packages').get('tools-versioned', True):
packages.extend(self.process_packages(
self.templates["control.tools-versioned"], self.vars))
if self.config.merge('packages').get('source', True):
packages.extend(self.process_packages(
self.templates["control.sourcebin"], self.vars))
self._substitute_file('perf.lintian-overrides', self.vars,
'debian/linux-perf-%s.lintian-overrides' %
self.vars['version'])
def do_indep_featureset_setup(self, vars, makeflags, featureset, extra):
makeflags['LOCALVERSION'] = vars['localversion']
kernel_arches = set()
for arch in iter(self.config['base', ]['arches']):
if self.config.get_merge('base', arch, featureset, None,
'flavours'):
kernel_arches.add(self.config['base', arch]['kernel-arch'])
makeflags['ALL_KERNEL_ARCHES'] = ' '.join(sorted(list(kernel_arches)))
vars['featureset_desc'] = ''
if featureset != 'none':
desc = self.config[('description', None, featureset)]
desc_parts = desc['parts']
vars['featureset_desc'] = (' with the %s featureset' %
desc['part-short-%s' % desc_parts[0]])
def do_indep_featureset_packages(self, packages, makefile, featureset,
vars, makeflags, extra):
headers_featureset = self.templates["control.headers.featureset"]
packages.extend(self.process_packages(headers_featureset, vars))
cmds_binary_arch = ["$(MAKE) -f debian/rules.real "
"binary-indep-featureset %s" %
makeflags]
makefile.add('binary-indep_%s_real' % featureset,
cmds=cmds_binary_arch)
arch_makeflags = (
('kernel-arch', 'KERNEL_ARCH', False),
)
def do_arch_setup(self, vars, makeflags, arch, extra):
config_base = self.config.merge('base', arch)
self._setup_makeflags(self.arch_makeflags, makeflags, config_base)
try:
gnu_type_bytes = subprocess.check_output(
['dpkg-architecture', '-f', '-a', arch,
'-q', 'DEB_HOST_GNU_TYPE'],
stderr=subprocess.DEVNULL)
except subprocess.CalledProcessError:
# This sometimes happens for the newest ports :-/
print('W: Unable to get GNU type for %s' % arch, file=sys.stderr)
else:
vars['gnu-type-package'] = (
gnu_type_bytes.decode('utf-8').strip().replace('_', '-'))
def do_arch_packages(self, packages, makefile, arch, vars, makeflags,
extra):
if self.version.linux_modifier is None:
try:
abiname_part = '-%s' % self.config['abi', arch]['abiname']
except KeyError:
abiname_part = self.abiname_part
makeflags['ABINAME'] = vars['abiname'] = \
self.abiname_version + abiname_part
if not self.disable_signed:
build_signed = self.config.merge('build', arch) \
.get('signed-code', False)
else:
build_signed = False
# Some userland architectures require kernels from another
# (Debian) architecture, e.g. x32/amd64.
# And some derivatives don't need the headers-all packages
# for other reasons.
if self.config['base', arch].get('featuresets') and \
self.config.merge('packages').get('headers-all', True):
headers_arch = self.templates["control.headers.arch"]
packages_headers_arch = self.process_packages(headers_arch, vars)
packages_headers_arch[-1]['Depends'].extend(PackageRelation())
extra['headers_arch_depends'] = (
packages_headers_arch[-1]['Depends'])
else:
packages_headers_arch = []
if self.config.merge('packages').get('libc-dev', True):
libc_dev = self.templates["control.libc-dev"]
packages_headers_arch[0:0] = self.process_packages(libc_dev, {})
merge_packages(packages, packages_headers_arch, arch)
if self.config['base', arch].get('featuresets') and \
self.config.merge('packages').get('source', True):
merge_packages(packages,
self.process_packages(
self.templates["control.config"], vars),
arch)
cmds_build_arch = ["$(MAKE) -f debian/rules.real build-arch-arch %s" %
makeflags]
makefile.add('build-arch_%s_real' % arch, cmds=cmds_build_arch)
cmds_binary_arch = ["$(MAKE) -f debian/rules.real binary-arch-arch %s"
% makeflags]
makefile.add('binary-arch_%s_real' % arch, cmds=cmds_binary_arch,
deps=['setup_%s' % arch])
udeb_packages = self.installer_packages.get(arch, [])
if udeb_packages:
merge_packages(packages, udeb_packages, arch)
# These packages must be built after the per-flavour/
# per-featureset packages. Also, this won't work
# correctly with an empty package list.
makefile.add(
'binary-arch_%s' % arch,
cmds=["$(MAKE) -f debian/rules.real install-udeb_%s %s "
"PACKAGE_NAMES='%s' UDEB_UNSIGNED_TEST_BUILD=%s" %
(arch, makeflags,
' '.join(p['Package'] for p in udeb_packages),
build_signed)])
# This also needs to be built after the per-flavour/per-featureset
# packages.
if build_signed:
merge_packages(packages,
self.process_packages(
self.templates['control.signed-template'],
vars),
arch)
makefile.add(
'binary-arch_%s' % arch,
cmds=["$(MAKE) -f debian/rules.real "
"install-signed-template_%s %s" %
(arch, makeflags)])
def do_featureset_setup(self, vars, makeflags, arch, featureset, extra):
vars['localversion_headers'] = vars['localversion']
makeflags['LOCALVERSION_HEADERS'] = vars['localversion_headers']
flavour_makeflags_base = (
('compiler', 'COMPILER', False),
('compiler-filename', 'COMPILER', True),
('kernel-arch', 'KERNEL_ARCH', False),
('cflags', 'CFLAGS_KERNEL', True),
('override-host-type', 'OVERRIDE_HOST_TYPE', True),
)
flavour_makeflags_build = (
('image-file', 'IMAGE_FILE', True),
)
flavour_makeflags_image = (
('install-stem', 'IMAGE_INSTALL_STEM', True),
)
flavour_makeflags_other = (
('localversion', 'LOCALVERSION', False),
('localversion-image', 'LOCALVERSION_IMAGE', True),
)
def do_flavour_setup(self, vars, makeflags, arch, featureset, flavour,
extra):
config_base = self.config.merge('base', arch, featureset, flavour)
config_build = self.config.merge('build', arch, featureset, flavour)
config_description = self.config.merge('description', arch, featureset,
flavour)
config_image = self.config.merge('image', arch, featureset, flavour)
vars['class'] = config_description['hardware']
vars['longclass'] = (config_description.get('hardware-long')
or vars['class'])
vars['localversion-image'] = vars['localversion']
override_localversion = config_image.get('override-localversion', None)
if override_localversion is not None:
vars['localversion-image'] = (vars['localversion_headers'] + '-'
+ override_localversion)
vars['image-stem'] = config_image.get('install-stem')
self._setup_makeflags(self.flavour_makeflags_base, makeflags,
config_base)
self._setup_makeflags(self.flavour_makeflags_build, makeflags,
config_build)
self._setup_makeflags(self.flavour_makeflags_image, makeflags,
config_image)
self._setup_makeflags(self.flavour_makeflags_other, makeflags, vars)
def do_flavour_packages(self, packages, makefile, arch, featureset,
flavour, vars, makeflags, extra):
headers = self.templates["control.headers"]
assert len(headers) == 1
config_entry_base = self.config.merge('base', arch, featureset,
flavour)
config_entry_build = self.config.merge('build', arch, featureset,
flavour)
config_entry_description = self.config.merge('description', arch,
featureset, flavour)
config_entry_relations = self.config.merge('relations', arch,
featureset, flavour)
def config_entry_image(key, *args, **kwargs):
return self.config.get_merge(
'image', arch, featureset, flavour, key, *args, **kwargs)
compiler = config_entry_base.get('compiler', 'gcc')
# Work out dependency from linux-headers to compiler. Drop
# dependencies for cross-builds. Strip any remaining
# restrictions, as they don't apply to binary Depends.
relations_compiler_headers = PackageRelation(
self.substitute(config_entry_relations.get('headers%' + compiler)
or config_entry_relations.get(compiler), vars))
relations_compiler_headers = PackageRelation(
PackageRelationGroup(entry for entry in group
if 'cross' not in entry.restrictions)
for group in relations_compiler_headers)
for group in relations_compiler_headers:
for entry in group:
entry.restrictions = []
relations_compiler_build_dep = PackageRelation(
self.substitute(config_entry_relations[compiler], vars))
for group in relations_compiler_build_dep:
for item in group:
item.arches = [arch]
packages['source']['Build-Depends-Arch'].extend(
relations_compiler_build_dep)
image_fields = {'Description': PackageDescription()}
for field in ('Depends', 'Provides', 'Suggests', 'Recommends',
'Conflicts', 'Breaks'):
image_fields[field] = PackageRelation(
config_entry_image(field.lower(), None),
override_arches=(arch,))
generators = config_entry_image('initramfs-generators')
group = PackageRelationGroup()
for i in generators:
i = config_entry_relations.get(i, i)
group.append(i)
a = PackageRelationEntry(i)
if a.operator is not None:
a.operator = -a.operator
image_fields['Breaks'].append(PackageRelationGroup([a]))
for item in group:
item.arches = [arch]
image_fields['Depends'].append(group)
bootloaders = config_entry_image('bootloaders', None)
if bootloaders:
group = PackageRelationGroup()
for i in bootloaders:
i = config_entry_relations.get(i, i)
group.append(i)
a = PackageRelationEntry(i)
if a.operator is not None:
a.operator = -a.operator
image_fields['Breaks'].append(PackageRelationGroup([a]))
for item in group:
item.arches = [arch]
image_fields['Suggests'].append(group)
desc_parts = self.config.get_merge('description', arch, featureset,
flavour, 'parts')
if desc_parts:
# XXX: Workaround, we need to support multiple entries of the same
# name
parts = list(set(desc_parts))
parts.sort()
desc = image_fields['Description']
for part in parts:
desc.append(config_entry_description['part-long-' + part])
desc.append_short(config_entry_description
.get('part-short-' + part, ''))
packages_own = []
if not self.disable_signed:
build_signed = config_entry_build.get('signed-code')
else:
build_signed = False
image = self.templates[build_signed and "control.image-unsigned"
or "control.image"]
assert len(image) == 1
vars.setdefault('desc', None)
image_main = self.process_real_image(image[0], image_fields, vars)
packages_own.append(image_main)
makeflags['IMAGE_PACKAGE_NAME'] = image_main['Package']
package_headers = self.process_package(headers[0], vars)
package_headers['Depends'].extend(relations_compiler_headers)
packages_own.append(package_headers)
if extra.get('headers_arch_depends'):
extra['headers_arch_depends'].append('%s (= ${binary:Version})' %
packages_own[-1]['Package'])
if config_entry_build.get('vdso', False):
makeflags['VDSO'] = True
build_debug = config_entry_build.get('debug-info')
if not self.disable_debug:
makeflags['DEBUG'] = True
packages_own.extend(self.process_packages(
self.templates['control.image-dbg'], vars))
merge_packages(packages, packages_own, arch)
tests_control = self.process_package(
self.templates['tests-control.image'][0], vars)
tests_control['Depends'].append(
PackageRelationGroup(image_main['Package'],
override_arches=(arch,)))
if self.tests_control_image:
self.tests_control_image['Depends'].extend(
tests_control['Depends'])
else:
self.tests_control_image = tests_control
self.tests_control.append(tests_control)
def get_config(*entry_name):
entry_real = ('image',) + entry_name
entry = self.config.get(entry_real, None)
if entry is None:
return None
return entry.get('configs', None)
def check_config_default(fail, f):
for d in self.config_dirs[::-1]:
f1 = d + '/' + f
if os.path.exists(f1):
return [f1]
if fail:
raise RuntimeError("%s unavailable" % f)
return []
def check_config_files(files):
ret = []
for f in files:
for d in self.config_dirs[::-1]:
f1 = d + '/' + f
if os.path.exists(f1):
ret.append(f1)
break
else:
raise RuntimeError("%s unavailable" % f)
return ret
def check_config(default, fail, *entry_name):
configs = get_config(*entry_name)
if configs is None:
return check_config_default(fail, default)
return check_config_files(configs)
kconfig = check_config('config', True)
kconfig.extend(check_config("kernelarch-%s/config" %
config_entry_base['kernel-arch'],
False))
kconfig.extend(check_config("%s/config" % arch, True, arch))
kconfig.extend(check_config("%s/config.%s" % (arch, flavour), False,
arch, None, flavour))
kconfig.extend(check_config("featureset-%s/config" % featureset, False,
None, featureset))
kconfig.extend(check_config("%s/%s/config" % (arch, featureset), False,
arch, featureset))
kconfig.extend(check_config("%s/%s/config.%s" %
(arch, featureset, flavour), False,
arch, featureset, flavour))
makeflags['KCONFIG'] = ' '.join(kconfig)
makeflags['KCONFIG_OPTIONS'] = ''
if build_debug:
makeflags['KCONFIG_OPTIONS'] += ' -o DEBUG_INFO=y'
if build_signed:
makeflags['KCONFIG_OPTIONS'] += ' -o MODULE_SIG=y'
# Add "salt" to fix #872263
makeflags['KCONFIG_OPTIONS'] += (' -o "BUILD_SALT=\\"%s%s\\""' %
(vars['abiname'],
vars['localversion']))
cmds_binary_arch = ["$(MAKE) -f debian/rules.real binary-arch-flavour "
"%s" %
makeflags]
cmds_build = ["$(MAKE) -f debian/rules.real build-arch-flavour %s" %
makeflags]
cmds_setup = ["$(MAKE) -f debian/rules.real setup-arch-flavour %s" %
makeflags]
makefile.add('binary-arch_%s_%s_%s_real' % (arch, featureset, flavour),
cmds=cmds_binary_arch)
makefile.add('build-arch_%s_%s_%s_real' % (arch, featureset, flavour),
cmds=cmds_build)
makefile.add('setup_%s_%s_%s_real' % (arch, featureset, flavour),
cmds=cmds_setup)
merged_config = ('debian/build/config.%s_%s_%s' %
(arch, featureset, flavour))
makefile.add(merged_config,
cmds=["$(MAKE) -f debian/rules.real %s %s" %
(merged_config, makeflags)])
# Substitute kernel version etc. into maintainer scripts,
# translations and lintian overrides
self._substitute_file('headers.postinst', vars,
'debian/linux-headers-%s%s.postinst' %
(vars['abiname'], vars['localversion']))
for name in ['postinst', 'postrm', 'preinst', 'prerm']:
self._substitute_file('image.%s' % name, vars,
'debian/%s.%s' %
(image_main['Package'], name))
if build_debug:
debug_lintian_over = (
'debian/linux-image-%s%s-dbg.lintian-overrides' %
(vars['abiname'], vars['localversion']))
self._substitute_file('image-dbg.lintian-overrides', vars,
debug_lintian_over)
os.chmod(debug_lintian_over, 0o755)
def process_changelog(self):
version = self.version = self.changelog[0].version
if self.version.linux_modifier is not None:
self.abiname_part = ''
else:
self.abiname_part = '-%s' % self.config['abi', ]['abiname']
# We need to keep at least three version components to avoid
# userland breakage (e.g. #742226, #745984).
self.abiname_version = re.sub(r'^(\d+\.\d+)(?=-|$)', r'\1.0',
self.version.linux_upstream)
self.vars = {
'upstreamversion': self.version.linux_upstream,
'version': self.version.linux_version,
'source_basename': re.sub(r'-[\d.]+$', '',
self.changelog[0].source),
'source_upstream': self.version.upstream,
'source_package': self.changelog[0].source,
'abiname': self.abiname_version + self.abiname_part,
}
self.config['version', ] = {'source': self.version.complete,
'upstream': self.version.linux_upstream,
'abiname_base': self.abiname_version,
'abiname': (self.abiname_version
+ self.abiname_part)}
distribution = self.changelog[0].distribution
if distribution in ('unstable', ):
if version.linux_revision_experimental or \
version.linux_revision_backports or \
version.linux_revision_other:
raise RuntimeError("Can't upload to %s with a version of %s" %
(distribution, version))
if distribution in ('experimental', ):
if not version.linux_revision_experimental:
raise RuntimeError("Can't upload to %s with a version of %s" %
(distribution, version))
if distribution.endswith('-security') or distribution.endswith('-lts'):
if version.linux_revision_backports or \
version.linux_revision_other:
raise RuntimeError("Can't upload to %s with a version of %s" %
(distribution, version))
if distribution.endswith('-backports'):
if not version.linux_revision_backports:
raise RuntimeError("Can't upload to %s with a version of %s" %
(distribution, version))
def process_real_image(self, entry, fields, vars):
entry = self.process_package(entry, vars)
for key, value in fields.items():
if key in entry:
real = entry[key]
real.extend(value)
elif value:
entry[key] = value
return entry
def write(self, packages, makefile):
self.write_config()
super(Gencontrol, self).write(packages, makefile)
self.write_tests_control()
def write_config(self):
f = open("debian/config.defines.dump", 'wb')
self.config.dump(f)
f.close()
def write_tests_control(self):
self.write_rfc822(open("debian/tests/control", 'w'),
self.tests_control)
if __name__ == '__main__':
Gencontrol()()