linux/poky.git/scripts/lib, branch uninative-3.2

classes/lib/scripts: Use bb.utils.rename() instead of os.rename()

2021-05-06T10:16:23+00:00

Incremental build in Docker fails with: OSError: [Errno 18] Invalid cross-device link when source and destination are on different overlay filesystems. Rather than adding fallback code to every call site, use a new wrapper in bitbake which detects this case and falls back to shutil.move which is slower but will handtle the overlay docker filesystems correctly. [YOCTO #14301] (From OE-Core rev: 656a65b2b84e7d529b89cf5de7eb838f902d84a2) Signed-off-by: Richard Purdie

devtool: Fix do_kernel_configme task

2021-03-14T16:33:59+00:00

The do_kernel_configme task is no longer part of SRCTREECOVEREDTASKS, its been removed from the kernel-yocto.bbclass since b72dbb2e4, but there wasnt a matching patch for devtool for those changes. This patch enables us to invoke the do_kernel_configme task when using a devtool workspace, it also prepends a check for an existing .config file in the source directory and moves it if thats the case, since when using devtool modify a .config is created and do_kernel_configme complains about it, this is not the case when using bitbake since the .config file would be on B instead. Alowing do_kernel_configme to run also fixes the flow where testing a new config fragment from devtool workspace isnt added properly (config queue shows it as ///frg.cfg) and as a side effect it never gets merged into the final config. (From OE-Core rev: 08dcc0e68095dcf2a159546a48b29d40c9aabc0b) Signed-off-by: Alejandro Enedino Hernandez Samaniego Signed-off-by: Richard Purdie

scripts/lib/wic/partition.py: do not set FAT size

2021-03-02T20:39:35+00:00

Modern dosfstools automatically determines the appropriate size and will error out if something that doesn't make sense is supplied on the command line. (From OE-Core rev: b85a09ea450a5e8f49418f4a930805fbb88dc83b) Signed-off-by: Alexander Kanavin Signed-off-by: Richard Purdie

wic: Warn if an ext filesystem affected by the Y2038 problem is used

2021-02-26T15:21:21+00:00

We are getting closer and closer to the year 2038 where the 32 bit time_t overflow will happen. While products (= embedded systems) with an expected life time of 15 years are still save the situation may change if your system has to survive the next 20 years. ext2 and ext3 filesystems are always affected by the time overflow, so let's warn the user if these filesystems are still being used. If ext4 is affected depends on the inode size chosen during filesystem creation. At least 256 bytes are necessary to be safe. As ext4 is used very often (and partitions may be created small first and extended later) this might be an issue for many users. Some filesystems created during CI runs were already affected by the Y2038 problem. By using `--mkfs-extraopts "-T default"` we tell mke2fs not to auto-detect the usage type based on the filesystem size. mke2fs will use the default values for tuning parameters instead. The inode size is one of these parameters. (From OE-Core rev: eecbe625558406680121d2a7e84917fea45ea9dc) Signed-off-by: Florian Bezdeka Signed-off-by: Richard Purdie

wic: debug mode to keep tmp directory

2021-02-09T08:56:11+00:00

files in wic tmp directory can be usefull for debugging, so do not remove tmp directory when wic create run with debugging mode (-D or --debug). also update wic.Wic.test_debug_short and wic.Wic.test_debug_long to check for tmp directory. [YOCTO#14216] (From OE-Core rev: a122e2418b67d38f691edcf8dd846c167d6b4fa9) Signed-off-by: Lee Chee Yang Signed-off-by: Richard Purdie

devtool: Fix file:// fetcher symlink directory structure

2021-01-23T17:08:54+00:00

Add relative path if file is under directory. [YOCTO #13738] (From OE-Core rev: 19ddacc1b38f9ebb86a9359963ccc3c707f7125e) Signed-off-by: Tomasz Dziendzielski Signed-off-by: Richard Purdie

devtool: Fix source extraction for gcc shared source

2021-01-20T22:46:18+00:00

If do_patch task is disabled then prepare do_configure dependencies to fetch external sources and create symlink to ${S} in devtool workspace. [YOCTO #13036] (From OE-Core rev: 9e47319bfe62d289b90f7545a64dbdc1cbde7f1d) Signed-off-by: Tomasz Dziendzielski Signed-off-by: Richard Purdie

wic: Optimise fstab modification for ext2/3/4 and msdos partitions

2021-01-20T22:46:18+00:00

The fix for [Yocto #13994] required the rootfs directory to be copied (using hardlinks if possible) when modifying the fstab file under wic. We can optimise this copy away for filesystems where we have the tools to modify the contents of the partition image after it is created. For ext2/3/4 filesystems we have the debugfs tool and for msdos/vfat filesystems we have the mcopy tool. So for any of these filesystems we skip the modification of the fstab file in the rootfs directory (and skip the associated copy unless it is otherwise necessary) and update the contents of fstab directly in the partition image. (From OE-Core rev: 5fb8ae0e9159597d7eaa9307a3a8543800bf9405) Signed-off-by: Paul Barker Signed-off-by: Richard Purdie

wic: Copy rootfs dir if fstab needs updating

2021-01-20T22:46:18+00:00

By default, wic updates the /etc/fstab in the rootfs to include details of additional partitions described in the selected wks file. If this modification is performed in place, other tasks which create an image file from the rootfs directory (e.g. do_image_tar and do_image_ext4) will pick up the modified fstab file which would not be appropriate for those images as they do not include the additional partitions described in the wks file. wic does undo modifications to the fstab file once it has finished creating the filesystem image, however this leaves open a race condition if one of the other tasks reads the contents of the fstab file from the rootfs directory between the point where wic modifies the fstab file and the point where wic restores the files original content. This could be solved by adding a lockfile for tasks which use the rootfs directory to ensure that no other such task is reading the rootfs directory while do_image_wic is running. This would serialize several do_image_* tasks and result in slower builds, especially for large images. Another drawback of this solution is that it is hard to selectively optimise - adding lockfiles to do_image_* tasks would result in these tasks always being serialized even if no fstab modification will take place. An alternative solution is to copy the rootfs directory when fstab needs to be modified. The code to do this in wic already exists as it is needed when including or excluding content in the rootfs. This still results in an impact on build times but the copy uses hardlinks if possible (so little data is actually copied) and we can make selective optimisations to improve things. The rootfs copy will only take place if fstab modification is required (or if it was already needed to include or exclude rootfs content). We can also follow up with further optimisations after this commit. So this second solution is chosen. Fixes [Yocto #13994] (From OE-Core rev: ce682a73b7447652f898ce1d1d0416a456df5416) Signed-off-by: Paul Barker Signed-off-by: Richard Purdie

wic: Update pseudo db when excluding content from rootfs

2021-01-20T22:46:18+00:00

To exclude content from the rootfs, wic makes a copy (using hardlinks if possible) of the rootfs directory and associated pseudo db, then removes files & directories as needed. However if these files and directories are removed using the python functions os.remove and shutil.rmtree, the copied pseudo db will not be updated correctly. For files copied from the original rootfs, if hardlinks were used successfully when copying the rootfs this should mean that the relevant inodes can't be reused and so the risk of pseudo aborts should be avoided. However, this logic doesn't apply for directories (as they can't be hardlinked) or for files added via the '--include-path' argument (as they weren't present in the original rootfs) and so there remains some risk of inodes being reused and the pseudo db becoming corrupted. To fix this, use the 'rm' command under pseudo when removing files & directories from the copied rootfs to ensure that the copied pseudo db is updated. (From OE-Core rev: d5db7e268947f0392c2126137571a44acd29ccd6) Signed-off-by: Paul Barker Signed-off-by: Richard Purdie