linux/poky.git/scripts/lib/wic/filemap.py, branch styhead-5.1

filemap.py: enforce maximum of 4kb block size

2023-03-27T14:44:02+00:00

The logic in this script validates that the length of data sections are evenly divisible by the block size. On most systems the block size is 4KB and all is good. Some systems though, such as ppc64le, have a block size larger then 4KB. For example on a POWER9 based ppc64le system, the block size is 64KB. This results in this script failing with errors like this when building wic images: |440, in _do_get_mapped_ranges | assert extent_len % self.block_size == 0 | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | AssertionError In this case the data section size was 268KB and the block size was 64KB, resulting in the above assert failure. Resolves https://bugzilla.yoctoproject.org/show_bug.cgi?id=15075 (From OE-Core rev: 1e23b803af6991fc20e4a4e88a0ef0541399e722) Signed-off-by: Andrew Geissler Signed-off-by: Richard Purdie

wic/filemap: Fall back to standard copy when no way to get the block map

2020-07-18T10:06:31+00:00

For some filesystems, such as aufs which may be used by docker container, don't support either the SEEK_DATA/HOLE or FIEMAP to get the block map. So add a FileNobmap class to fall back to standard copy when there is no way to get the block map. [Yocto #12988] (From OE-Core rev: 7934ed49179242f15b413c0275040a3bb6b68876) Signed-off-by: Kevin Hao Signed-off-by: Richard Purdie

wic/filemap: Drop the unused get_unmapped_ranges()

2020-07-18T10:06:31+00:00

This method is not used by any code, so drop it. (From OE-Core rev: 6513fd9302b9989f97fc9d95e76e06ad5d266774) Signed-off-by: Kevin Hao Signed-off-by: Richard Purdie

wic/filemap: Drop the unused block_is_unmapped()

2020-07-18T10:06:31+00:00

This method is not used by any code, so drop it. (From OE-Core rev: fb62a15349597ee026c67a0bb0a6ca2cc9bfe420) Signed-off-by: Kevin Hao Signed-off-by: Richard Purdie

wic/filemap: If FIGETBSZ iotctl fail, failback to os.stat

2020-01-02T16:39:13+00:00

Some file systems don't support fetching the block size (notably the file system Docker uses for containers), so if iotctl() fail, try to use failback via os.stat() to get block size. (From OE-Core rev: e219f5175177a640dd62833082ea19adc1c13d42) Signed-off-by: Kalle lampila Signed-off-by: Richard Purdie

wic/filemap: handle FIGETBSZ failing

2019-06-08T15:01:41+00:00

Some file systems don't support fetching the block size (notably the file system Docker uses for containers), so handle the iotctl() failing and raise the expected error. (From OE-Core rev: 3757073726a00c5250556aae3d0daac76b88085e) Signed-off-by: Ross Burton Signed-off-by: Richard Purdie

meta/lib+scripts: Convert to SPDX license headers

2019-05-09T15:31:55+00:00

This adds SPDX license headers in place of the wide assortment of things currently in our script headers. We default to GPL-2.0-only except for the oeqa code where it was clearly submitted and marked as MIT on the most part or some scripts which had the "or later" GPL versioning. The patch also drops other obsolete bits of file headers where they were encoountered such as editor modelines, obsolete maintainer information or the phrase "All rights reserved" which is now obsolete and not required in copyright headers (in this case its actually confusing for licensing as all rights were not reserved). More work is needed for OE-Core but this takes care of the bulk of the scripts and meta/lib directories. The top level LICENSE files are tweaked to match the new structure and the SPDX naming. (From OE-Core rev: f8c9c511b5f1b7dbd45b77f345cb6c048ae6763e) Signed-off-by: Richard Purdie

wic: use explicit errno import

2018-11-07T23:08:55+00:00

os.errno doesn't work in Python 3.7 and shouldn't have ever worked, so use import errno explicitly. (From OE-Core rev: 82f9157e84dcaf0ad4292053b09be68c2290d197) Signed-off-by: Ross Burton Signed-off-by: Richard Purdie

wic: if we can't get from ioctl, try from os.stat()

2018-01-14T09:11:57+00:00

Under some conditions, ioctl FIGETBSZ can't return real value. We can try to use fallback via os.stat() to get block size. Source of patch: https://github.com/intel/bmap-tools/commit/17365f4fe9089df7ee9800a2a0ced177ec4798a4 (From OE-Core rev: d8f7cf2d38934c248be91101236f7537d0d31ea7) Signed-off-by: Dogukan Ergun Signed-off-by: Ross Burton Signed-off-by: Richard Purdie

wic: code cleanup

2017-06-23T10:44:12+00:00

Split long lines. Removed unused imports. (From OE-Core rev: 49b704864c7db49e41a0b6bbdb8a2840e7fa232b) Signed-off-by: Ed Bartosh Signed-off-by: Ross Burton Signed-off-by: Richard Purdie