In order to make wic images sparse sparse_copy function has been
copied from meta-ostro:
https://github.com/kad/meta-ostro/blob/master/meta-ostro/lib/image-dsk.py
This function uses filemap APIs to copy source sparse file into
destination file preserving sparseness.
The function has been modified to satisfy wic requirements:
parameter 'skip' has been added.
[YOCTO #9099]
(From OE-Core rev: bfde62bdc03152a4d3d383512479b974fa867f94)
Signed-off-by: Ed Bartosh <ed.bartosh@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
In order to make wic images sparse set of APIs has been copied
from bmap-tools project.
filemap.py module is taken from bmap-tools project:
https://github.com/01org/bmap-tools/blob/master/bmaptools/Filemap.py
It implements two ways of get information about file block: FIEMAP
ioctl and the 'SEEK_HOLE / SEEK_DATA' features of the file seek
syscall.
Note that this module will be removed as soon as bmaptool utility
supports copying sparse source file into destination file (this is
already agreed with the maintainer of bmap-tools project).
[YOCTO #9099]
(From OE-Core rev: 182639ddc9cda85c896a54c1c64fd1fb145071a1)
Signed-off-by: Ed Bartosh <ed.bartosh@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Ed Bartosh