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Transform the hard-coded list of feature combinations in to individual
groups of features.
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Update seeds to account for the new pseudo-syscall prototype and the new
compressed Base64 syntax. This reduces `syz-imagegen` seed image space
requirements from 127 MB to 43 MB (measured using `du -ch syz_mount_image_*`).
Note that some filesystems are pathological for deflate, e.g. for `f2fs`
seed image space has increased from 320 KB to 2.1 MB. This discrepancy
should not be observed in corpuses after performing various filesystem
operations and image mutations - the previous ad-hoc compression is
highly efficient for near-empty images, but once images are modified deflate
should surpass it.
Tools/versions used are as in google@0d24140 and google@356d821.
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Now including the ability to change directory. Using the same
tools/versions as google/syzkaller@0d2414047943397599e7cfc12d40f4582d008726.
N.B. in particular, NTFS3 will be updated in the next commit.
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Regenerate using the following versions:
mkfs.f2fs 1.14.0 (2020-08-24)
mkfs.btrfs btrfs-progs v5.18.1
mkfs.fat 4.2 (2021-01-31)
mkexfatfs 1.3.0
mkfs.bfs util-linux 2.38
mkfs.xfs 5.19.0
mkfs.minix util-linux 2.38
mkfs.reiserfs 3.6.27
mkfs.jfs 1.1.15 (2011-03-04)
mkntfs libntfs-3g v2022.5.17
mke2fs 1.46.5 (2021-12-30)
mkfs.gfs2 3.4.1
mkfs.ocfs2 1.8.7
mkfs.cramfs util-linux 2.38
genromfs 0.5.2
mkfs.erofs 1.5
makefs 20190105-3
mkudffs udftools 2.3
mkfs.jffs2 mtd-utils 2.1.4
mkfs.nilfs2 nilfs-utils 2.2.8
mksquashfs sqaushfs-tools 4.5.1
genisomage 1.1.11
NB: NTFS3 is not included here as my kernel does not seem to be compiled
with it.
No errors appear (except for failure to find NTFS3).
This commit also updates a comment in `imagegen.go` listing dependencies.
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And populate images with some files,
which should make both mounting and resulting dir more interesting.
Note: this adds 100MB of image files into the repo...
Maybe we need to think of some other way of string these images...
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