linux: support each linux latest lts version
PATCH v2 1/2 linux: support each linux latest lts version
Provides support for a board configuration to use the latest version of the Linux kernel for a specific LTS. While the existing BR2_LINUX_KERNEL_LATEST_VERSION allows desired configurations to roll with a latest stable release, in some scenarios, a user may want the same ability but for a specific Linux LTS. For example, if a user is using an external toolchain that is also tied to a specific Linux LTS.
Having these new options avoids the need for rolling configuration to rely on BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE with the BR2_DOWNLOAD_FORCE_CHECK_HASHES option disabled.
Signed-off-by James Knight <[email protected]>
---
Changes v1 -> v2:
- Updated versions to use latest versions tracked in linux.hash.
--- linux/Config.ext.in | 4 +-- linux/Config.in | 45 ++++++++++++++++++++++++++++ linux/linux.mk | 2 +- package/linux-headers/Config.in.host | 4 +-- 4 files changed, 48 insertions(+), 7 deletions(-)
linux/Config.ext.in +1 -3
@@ -48,9 +48,7 @@ comment "xenomai needs a uClibc or glibc toolchain w/ threads" # RTAI config BR2_LINUX_KERNEL_EXT_RTAI bool "RTAI Real-time patch" - depends on !BR2_LINUX_KERNEL_LATEST_VERSION - depends on !BR2_LINUX_KERNEL_LATEST_CIP_VERSION - depends on !BR2_LINUX_KERNEL_LATEST_CIP_RT_VERSION + depends on !BR2_LINUX_KERNEL_LATEST_SERIES select BR2_PACKAGE_RTAI help RTAI Kernel part.
linux/Config.in +45 -0
73 lines not on this page · raw message
linux/linux.mk +1 -1
@@ -49,7 +49,7 @@ LINUX_SITE = $(BR2_KERNEL_MIRROR)/linux/kernel/v$(firstword $(subst ., ,$(LINUX_ endif endif -ifeq ($(BR2_LINUX_KERNEL)$(BR2_LINUX_KERNEL_LATEST_VERSION),y) +ifeq ($(BR2_LINUX_KERNEL)$(BR2_LINUX_KERNEL_LATEST_SERIES),y) BR_NO_CHECK_HASH_FOR += $(LINUX_SOURCE) endif
package/linux-headers/Config.in.host +1 -3
@@ -114,9 +114,7 @@ endif choice bool "Custom kernel headers series" default BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_REALLY_OLD - depends on !BR2_LINUX_KERNEL_LATEST_VERSION || !BR2_KERNEL_HEADERS_AS_KERNEL - depends on !BR2_LINUX_KERNEL_LATEST_CIP_VERSION || !BR2_KERNEL_HEADERS_AS_KERNEL - depends on !BR2_LINUX_KERNEL_LATEST_CIP_RT_VERSION || !BR2_KERNEL_HEADERS_AS_KERNEL + depends on !BR2_LINUX_KERNEL_LATEST_SERIES || !BR2_KERNEL_HEADERS_AS_KERNEL depends on BR2_KERNEL_HEADERS_VERSION || BR2_KERNEL_HEADERS_AS_KERNEL || \ BR2_KERNEL_HEADERS_CUSTOM_TARBALL || BR2_KERNEL_HEADERS_CUSTOM_GIT help
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2.46.2.windows.1 _______________________________________________ buildroot mailing list [email protected] https://lists.buildroot.org/mailman/listinfo/buildroot
PATCH v2 2/2 support: add a kernel version configuration helper script
Provides a helper script which can be used to quickly synchronize the kernel versions defined in the Linux's Config.in file based on the contents populated inside linux.hash.
The goal of this script is to help the maintenance effort required when possibly supporting all active Linux LTS versions in the tree at a given time.
Signed-off-by James Knight <[email protected]>
---
Changes v1 -> v2:
- Introduced in the v2 of this series.
This is optional. No worries if not desired.
--- support/scripts/sync-kernel-versions.py | 142 ++++++++++++++++++++++++ 1 file changed, 142 insertions(+) create mode 100755 support/scripts/sync-kernel-versions.py
support/scripts/sync-kernel-versions.py new file +142 -0
@@ -0,0 +1,142 @@ +#!/usr/bin/env python3 +# +# Provides a script to allow the automatic updating of a Linux +# package's `Config.in` file based on the version information detailed +# in a `linux.hash` file. + +from pathlib import Path +import argparse +import re + + +# searching for a version pattern inside a `linux.hash` file +LINUX_VERSION_PATTERN = r'.*-([1-9]+.*)\.t.*' + + +def main(): + # argument parsing + parser = argparse.ArgumentParser() + parser.add_argument('--dry-run', action='store_true', + help='Do not change any files') + parser.add_argument('--verbose', action='store_true', + help='Output additional information') + args = parser.parse_args() + + # helpers + def verbose(msg): + if args.verbose: + print(f'(verbose) {msg}') + + # find the linux package folder + br_dir = Path(__file__).parent.parent.parent + + linux_pkg_dir = br_dir / 'linux' + if not linux_pkg_dir.is_dir(): + print('unable to find the linux package folder') + return 1 + + linux_conf = linux_pkg_dir / 'Config.in' + if not linux_conf.is_file(): + print('unable to find the linux configuration file') + return 1 + + linux_hash = linux_pkg_dir / 'linux.hash' + if not linux_hash.is_file(): + print('unable to find the linux hash file') + return 1 + + # extract expected linux entries from the hash file + try: + with linux_hash.open(encoding='utf-8') as f: + raw_hash_output = f.readlines() + except OSError as e: + print(f'error reading file {linux_hash}: {e}') + return 1 + + entries = {} + for hash_entry in raw_hash_output: + if hash_entry.startswith('sha'): + _, _, fname = hash_entry.strip().split(maxsplit=2) + if fname.startswith('linux-'): + verbose(f'detected linux entry: {fname}') + + match = re.search(LINUX_VERSION_PATTERN, fname) + if match: + vnum = match.group(1) + ventry = extract_ventry(vnum) + entries[ventry] = vnum + verbose(f'detected linux version ({fname}): {vnum}') + else: + verbose(f'unable to detect linux version: {fname}') + + # read the existing Linux configuration file + conf_contents = [] + has_updated = False + process_cfg = None + try: + with linux_conf.open(encoding='utf-8') as f: + lines = f.read().splitlines() + for line in lines: + # wait until we are processing the kernel version section + if process_cfg is None: + if 'config BR2_LINUX_KERNEL_VERSION' in line: + process_cfg = True + + # if we are processing, check each version entry for any + # updates that are required + elif process_cfg: + # stop if the section is done + if not line: + process_cfg = False + # check if this is a linux configuration entry that + # might need to be updated + elif 'default "' in line: + front, raw_version, tail = line.split(maxsplit=2) + vnum = raw_version.replace('"', '') + if '.' in vnum: + ventry = extract_ventry(vnum) + if ventry in entries: + new_vnum = entries[ventry] + # if the version is outdated, replace the line + if vnum != new_vnum: + print(f'Sync: {vnum} -> {new_vnum}') + line = f'\t{front} "{new_vnum}" {tail}' + has_updated = True + + conf_contents.append(line) + + except OSError as e: + print(f'error reading file {linux_conf}: {e}') + return 1 + + # update the linux configuration file if we have new changes + if has_updated and not args.dry_run: + print(f'Updating: {linux_conf}') + try: + with linux_conf.open('w', encoding='utf-8', newline='') as f: + for line in conf_contents: + f.write(f'{line}\n') + + except OSError as e: + print(f'error writing file {linux_conf}: {e}') + return 1 + + if not has_updated: + print('No outdated versions.') + + return 0 + + +def extract_ventry(vnum): + vmaj, vmin, _ = vnum.split('.', maxsplit=2) + + ventry = f'{vmaj}.{vmin}' + if '-' in vnum: + _, postfix = vnum.split('-', maxsplit=1) + ventry += f'-{postfix}' + + return ventry + + +if __name__ == "__main__": + raise SystemExit(main())
Signature · 6 lines
2.46.2.windows.1 _______________________________________________ buildroot mailing list [email protected] https://lists.buildroot.org/mailman/listinfo/buildroot
Re: [Buildroot] [PATCH v2 2/2] support: add a kernel version configuration helper script
Quoted 9 lines · James Knight
Provides a helper script which can be used to quickly synchronize the kernel versions defined in the Linux's
Config.infile based on the contents populated insidelinux.hash.The goal of this script is to help the maintenance effort required when possibly supporting all active Linux LTS versions in the tree at a given time.
Signed-off-by James Knight <[email protected]>
I just merged a script that does it much better, because it downloads the sha
file from kernel.org and updates the hash file from that. See utils/bump-stable-kernel-versions
Regards,
Arnout
Quoted 148 lines
---
Changes v1 -> v2:
- Introduced in the v2 of this series.This is optional. No worries if not desired.
--- support/scripts/sync-kernel-versions.py | 142 ++++++++++++++++++++++++ 1 file changed, 142 insertions(+)create mode 100755
support/scripts/sync-kernel-versions.pysupport/scripts/sync-kernel-versions.py new file +132
-0@@ -0,0 +1,142 @@ +#!/usr/bin/env python3 +# +# Provides a script to allow the automatic updating of a Linux +# package's `Config.in` file based on the version information detailed +# in a `linux.hash` file. + +from pathlib import Path +import argparse +import re + + +# searching for a version pattern inside a `linux.hash` file +LINUX_VERSION_PATTERN = r'.*-([1-9]+.*)\.t.*' + + +def main(): + # argument parsing + parser = argparse.ArgumentParser() + parser.add_argument('--dry-run', action='store_true', + help='Do not change any files') + parser.add_argument('--verbose', action='store_true', + help='Output additional information') + args = parser.parse_args() + + # helpers + def verbose(msg): + if args.verbose: + print(f'(verbose) {msg}') + + # find the linux package folder + br_dir = Path(__file__).parent.parent.parent + + linux_pkg_dir = br_dir / 'linux' + if not linux_pkg_dir.is_dir(): + print('unable to find the linux package folder') + return 1 + + linux_conf = linux_pkg_dir / 'Config.in' + if not linux_conf.is_file(): + print('unable to find the linux configuration file') + return 1 + + linux_hash = linux_pkg_dir / 'linux.hash' + if not linux_hash.is_file(): + print('unable to find the linux hash file') + return 1 + + # extract expected linux entries from the hash file + try: + with linux_hash.open(encoding='utf-8') as f: + raw_hash_output = f.readlines() + except OSError as e: + print(f'error reading file {linux_hash}: {e}') + return 1 + + entries = {} + for hash_entry in raw_hash_output: + if hash_entry.startswith('sha'): + _, _, fname = hash_entry.strip().split(maxsplit=2) + if fname.startswith('linux-'): + verbose(f'detected linux entry: {fname}') + + match = re.search(LINUX_VERSION_PATTERN, fname) + if match: + vnum = match.group(1) + ventry = extract_ventry(vnum) + entries[ventry] = vnum + verbose(f'detected linux version ({fname}): {vnum}') + else: + verbose(f'unable to detect linux version: {fname}') + + # read the existing Linux configuration file + conf_contents = [] + has_updated = False + process_cfg = None + try: + with linux_conf.open(encoding='utf-8') as f: + lines = f.read().splitlines() + for line in lines: + # wait until we are processing the kernel version section + if process_cfg is None: + if 'config BR2_LINUX_KERNEL_VERSION' in line: + process_cfg = True + + # if we are processing, check each version entry for any + # updates that are required + elif process_cfg: + # stop if the section is done + if not line: + process_cfg = False + # check if this is a linux configuration entry that + # might need to be updated + elif 'default "' in line: + front, raw_version, tail = line.split(maxsplit=2) + vnum = raw_version.replace('"', '') + if '.' in vnum: + ventry = extract_ventry(vnum) + if ventry in entries: + new_vnum = entries[ventry] + # if the version is outdated, replace the line + if vnum != new_vnum: + print(f'Sync: {vnum} -> {new_vnum}') + line = f'\t{front} "{new_vnum}" {tail}' + has_updated = True + + conf_contents.append(line) + + except OSError as e: + print(f'error reading file {linux_conf}: {e}') + return 1 + + # update the linux configuration file if we have new changes + if has_updated and not args.dry_run: + print(f'Updating: {linux_conf}') + try: + with linux_conf.open('w', encoding='utf-8', newline='') as f: + for line in conf_contents: + f.write(f'{line}\n') + + except OSError as e: + print(f'error writing file {linux_conf}: {e}') + return 1 + + if not has_updated: + print('No outdated versions.') + + return 0 + + +def extract_ventry(vnum): + vmaj, vmin, _ = vnum.split('.', maxsplit=2) +
support/scripts/sync-kernel-versions.py line 142
Quoted 10 lines
support/scripts/sync-kernel-versions.py new file +10
-0+ ventry = f'{vmaj}.{vmin}' + if '-' in vnum: + _, postfix = vnum.split('-', maxsplit=1) + ventry += f'-{postfix}' + + return ventry + + +if __name__ == "__main__": + raise SystemExit(main())
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