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* wic: if we can't get from ioctl, try from os.stat()Dogukan Ergun2018-01-141-1/+9
| | | | | | | | | | | | | | 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 <dogukan.ergun@gmail.com> Signed-off-by: Ross Burton <ross.burton@intel.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
* wic: code cleanupEd Bartosh2017-06-231-6/+2
| | | | | | | | | | | Split long lines. Removed unused imports. (From OE-Core rev: 49b704864c7db49e41a0b6bbdb8a2840e7fa232b) Signed-off-by: Ed Bartosh <ed.bartosh@linux.intel.com> Signed-off-by: Ross Burton <ross.burton@intel.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
* filemap: calculate dst size correctlyEd Bartosh2017-06-141-1/+5
| | | | | | | | | | | Fixed calculation of the dst file size using skip, seek and length parameters. Current code does it incorrectly which causes sparse_copy API to create unnecessary big output files. (From OE-Core rev: e6d709a6382e4b913612f597e66ad07b0e351d5f) Signed-off-by: Ed Bartosh <ed.bartosh@linux.intel.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
* filemap: check if dest is written for every blockEd Bartosh2017-06-141-0/+7
| | | | | | | | | | | | | | If lenght parameter is provided to sparse_copy call it's mandatory to check if the output file is fully written after reading unmapped block from input file. If it's not done then sparse_copy can write more data than specified length. (From OE-Core rev: 289b1767182982dfb6912e64481150697ba93e4d) Signed-off-by: Ed Bartosh <ed.bartosh@linux.intel.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
* filemap: change signature of sparse_copy functionEd Bartosh2017-06-141-3/+12
| | | | | | | | | | | | | | Renamed parameter offset->skip to match names of dd parameters. Changed affected sparse_copy calls. Added explanation of the parameters to docstring. (From OE-Core rev: 08e2f4e59816c5757686255b267b08cbc46fbd95) Signed-off-by: Ed Bartosh <ed.bartosh@linux.intel.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
* filemap: add parameter 'length' to sparse_copyEd Bartosh2017-06-141-3/+12
| | | | | | | | | | | Added parameter 'length' to specify amount of data to write into destination file. This is useful when only part of source file should be written into destination file. (From OE-Core rev: cc44e2eb3b5027a3531e6349937a23d73313b3c6) Signed-off-by: Ed Bartosh <ed.bartosh@linux.intel.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
* filemap: fix skip logicEd Bartosh2017-06-141-4/+7
| | | | | | | | | | | | | Fixed bug in processing 'skip' parameter: don't read input file if end of bmap block is less than skip Simplified logic of positioning to the start of data inside a partially skipped bmap block. (From OE-Core rev: c19f78a0713c8ac9d28b78f86c6d7b96157788f0) Signed-off-by: Ed Bartosh <ed.bartosh@linux.intel.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
* oe-selftest: test wic sparse_copy APIEd Bartosh2017-04-121-2/+4
| | | | | | | | | | | | | Added new parameter 'api' to sparse_copy function to specify underlying filemap API to use. By default sparse_copy will try both available APIs. Added test case for sparse_copy to wic test suite. (From OE-Core rev: 88701cef6ba399e82f96ed1b0eef9a44ed8c1687) Signed-off-by: Ed Bartosh <ed.bartosh@linux.intel.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
* Revert "filemap: remove FilemapSeek class"Ed Bartosh2017-04-051-49/+260
| | | | | | | | | | | | | | | | | FIEMAP API is not supported by tmpfs file system, but SEEK_HOLE/SEEK_DATA is supported. Returned back FilemapSeek class that implements support of SEEK_HOLE/SEEK_DATA API to make sparse_copy API working on tmpfs again. This reverts commit 6b80c13f7a82a312a3b981de5a56c66466ba1fac. (From OE-Core rev: e75bd6a7dd5c1b4bad039c35cf4a2ffc2f77c60a) Signed-off-by: Ed Bartosh <ed.bartosh@linux.intel.com> Signed-off-by: Ross Burton <ross.burton@intel.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
* filemap: remove FilemapSeek classEd Bartosh2017-04-011-260/+49
| | | | | | | | | | | | | | FIEMAP API was added to Linux kernel 2.6.28 back in 2008 SEEK_HOLE and SEEK_DATA API was added much letter. As FIEMAP is used by filemap module as a default API it's safe to remove FileMpSeek class as it's never used. [YOCTO #10618] (From OE-Core rev: 44e9406ea6e3263d2fb95e9d534a21f74f318480) Signed-off-by: Ed Bartosh <ed.bartosh@linux.intel.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
* wic: fix bug in sparse_copyEd Bartosh2017-03-231-0/+1
| | | | | | | | | | | | | | sparse_copy creates output file that is smaller than input file when input file ends with unmapped blocks. Used truncate(<input file size>) when output file is created to ensure the size of output file will always be equal to the size of input file. (From OE-Core rev: 567186f995302a095a771baede4ff5034d1d1862) Signed-off-by: Ed Bartosh <ed.bartosh@linux.intel.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
* wic: filemap: Fixed spared_copy skipDaniel Schultz2017-03-101-3/+3
| | | | | | | | | | | | This patches removes the empty space in front of the copied file which was skipped. Without this reduction it's not possible to place a partition with rawcopy and skip parameter on a desired alignment. (From OE-Core rev: 5c024d71f9413b81ee1707dbc41f0721f8f27bdb) Signed-off-by: Daniel Schultz <d.schultz@phytec.de> Signed-off-by: Ross Burton <ross.burton@intel.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
* wic: use next builtin instead of .next methodEd Bartosh2016-05-141-1/+1
| | | | | | | | | | | | | Generators in Python 3 don't have .next method. It's recommended to use 'next' builtin instead. As it also present in Python >= 2.6 it should make wic code compatible with both Python 2 and Python 3. [YOCTO #9412] (From OE-Core rev: 9b7ab632e47d786dd979262015dbfb1254103f83) Signed-off-by: Ed Bartosh <ed.bartosh@linux.intel.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
* wic: use // operator instead of /Ed Bartosh2016-05-141-7/+7
| | | | | | | | | | | | | | | Division operator works differently in Python 3. It results in float unlike in Python 2, where it results in int. Explicitly used "floor division" operator instead of 'division' operator. This should make the code to result in integer under both pythons. [YOCTO #9412] (From OE-Core rev: 997ff239bd753a7957cc14c6829b2f093d9bcef6) Signed-off-by: Ed Bartosh <ed.bartosh@linux.intel.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
* wic: add sparse_copy APIEd Bartosh2016-05-061-0/+30
| | | | | | | | | | | | | | | | | | 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>
* wic: add FIEMAP and SEEK_HOLE / SEEK_DATA APIsEd Bartosh2016-05-061-0/+531
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>
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