blob: c77b9ce75f6d25906789b12854bcf90230b617b2 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
|
#
# gdb helper commands and functions for Linux kernel debugging
#
# VFS tools
#
# Copyright (c) 2023 Glenn Washburn
# Copyright (c) 2016 Linaro Ltd
#
# Authors:
# Glenn Washburn <development@efficientek.com>
# Kieran Bingham <kieran.bingham@linaro.org>
#
# This work is licensed under the terms of the GNU GPL version 2.
#
import gdb
from linux import utils
def dentry_name(d):
parent = d['d_parent']
if parent == d or parent == 0:
return ""
p = dentry_name(d['d_parent']) + "/"
return p + d['d_iname'].string()
class DentryName(gdb.Function):
"""Return string of the full path of a dentry.
$lx_dentry_name(PTR): Given PTR to a dentry struct, return a string
of the full path of the dentry."""
def __init__(self):
super(DentryName, self).__init__("lx_dentry_name")
def invoke(self, dentry_ptr):
return dentry_name(dentry_ptr)
DentryName()
dentry_type = utils.CachedType("struct dentry")
class InodeDentry(gdb.Function):
"""Return dentry pointer for inode.
$lx_i_dentry(PTR): Given PTR to an inode struct, return a pointer to
the associated dentry struct, if there is one."""
def __init__(self):
super(InodeDentry, self).__init__("lx_i_dentry")
def invoke(self, inode_ptr):
d_u = inode_ptr["i_dentry"]["first"]
if d_u == 0:
return ""
return utils.container_of(d_u, dentry_type.get_type().pointer(), "d_u")
InodeDentry()
|
