Added scripts/dbglfs.py for debugging the filesystem tree
Currently this can show:
- The filesystem tree:
$ ./scripts/dbglfs.py disk -B4096
littlefs v2.0 0x{0,1}.bd4, rev 1, weight 41
mdir ids name type
{00ce,00cf}: 0.1 dir0000 dir 0x1070c73
{0090,0091}: 2.30 |-> child0000 dir 0x8ec7fb2
{0042,0043}: 24.35 | |-> grandchild0000 dir 0x32d990b
{0009,000a}: 25.0 | |-> grandchild0001 dir 0x1461a08
25.1 | |-> grandchild0002 dir 0x216e9fc
25.2 | |-> grandchild0003 dir 0x7d6aff
25.3 | |-> grandchild0004 dir 0x4b70e14
25.4 | |-> grandchild0005 dir 0x6dc8d17
25.5 | |-> grandchild0006 dir 0x58c7ee3
25.6 | '-> grandchild0007 dir 0x7e7fde0
{0090,0091}: 2.31 |-> child0001 dir 0xa87fcb1
{0077,0078}: 29.1 | |-> grandchild0000 dir 0x12194f5
29.2 | |-> grandchild0001 dir 0x34a17f6
...
- The on-disk filesystem config:
$ ./scripts/dbglfs.py disk -B4096 -c
littlefs v2.0 0x{0,1}.bd4, rev 1, weight 41
mdir ids tag data (truncated)
config: major_version 2 02 .
minor_version 0 00 .
csum_type 2 02 .
flags 0 00 .
block_size 4096 80 20 .
block_count 256 80 02 ..
...
- Any global-state on-disk:
$ ./scripts/dbglfs.py disk -B4096 -g -d
littlefs v2.0 0x{0,1}.bd4, rev 1, weight 41
mdir ids tag data (truncated)
gstate: grm none 00 00 00 cc 05 57 ff 7f .....W..
{0000,0001}: -1 grm 8 01 03 24 cc 05 57 ff 7f ..$..W..
{00ce,00cf}: 0 grm 3 00 2f 1b ./.
{00d0,00d1}: 1 grm 3 01 04 01 ...
Note this already reveals a bug, since grm none should be all zeros.
Also made some other minor tweaks to dbg scripts for consistency.
Christopher Haster
b98ac119c7