xref: /freebsd/sbin/kldstat/kldstat.8 (revision 9768746b)
1.\"
2.\" Copyright (c) 1997 Doug Rabson
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26.\" $FreeBSD$
27.\"
28.Dd January 19, 2016
29.Dt KLDSTAT 8
30.Os
31.Sh NAME
32.Nm kldstat
33.Nd display status of dynamic kernel linker
34.Sh SYNOPSIS
35.Nm
36.Op Fl h
37.Op Fl q
38.Op Fl v
39.Op Fl d
40.Op Fl i Ar id
41.Op Fl n Ar filename
42.Nm
43.Op Fl q
44.Op Fl d
45.Op Fl m Ar modname
46.Sh DESCRIPTION
47The
48.Nm
49utility displays the status of any files dynamically linked into the
50kernel.
51.Pp
52The following options are available:
53.Bl -tag -width indentXX
54.It Fl h
55Display the size field in a human-readable form, using unit suffixes
56instead of hex values.
57.It Fl v
58Be more verbose.
59.It Fl d
60Show the module specific data (as int, unsigned int and unsigned long)
61.It Fl i Ar id
62Display the status of only the file with this ID.
63.It Fl n Ar filename
64Display the status of only the file with this filename.
65.It Fl q
66Only check if file is loaded or compiled into the kernel.
67.It Fl m Ar modname
68Display the status of only the module with this modname.
69.El
70.Sh EXIT STATUS
71.Ex -std
72.Sh EXAMPLES
73Show files dynamically linked into the kernel.
74Note the kernel itself is shown in the list.
75.Em Refs
76shows the number of modules referenced by each file:
77.Bd -literal -offset indent
78$ kldstat
79Id Refs Address                Size Name
80 1   38 0xffffffff80200000  2448f20 kernel
81 2    3 0xffffffff82649000    b7bd8 linux.ko
82 3    5 0xffffffff82701000     9698 linux_common.ko
83 4    1 0xffffffff82b11000     1eae linsysfs.ko
84 5    1 0xffffffff82b13000    f2af8 nvidia-modeset.ko
85 6    1 0xffffffff82c06000  122b020 nvidia.ko
86 7    1 0xffffffff83e32000     2668 intpm.ko
87 8    1 0xffffffff83e35000      b50 smbus.ko
88 9    1 0xffffffff83e36000     18a0 uhid.ko
8910    1 0xffffffff83e38000     2928 ums.ko
9011    1 0xffffffff83e3b000     1aa0 wmt.ko
9112    1 0xffffffff83e3d000     cd70 snd_uaudio.ko
92.Ed
93.Pp
94Show the verbose status of the
95.Em linux
96file and show the size in a human readable fashion:
97.Bd -literal -offset indent
98$ kldstat -h -v -n linux
99Id Refs Address             Size Name
100 2    3 0xffffffff82649000  735K linux.ko (/boot/kernel/linux.ko)
101        Contains modules:
102                 Id Name
103                  2 linuxelf
104.Ed
105.Pp
106Same as above using the
107.Em id
108of the file:
109.Bd -literal -offset indent
110$ kldstat -h -i 2 -v
111Id Refs Address             Size Name
112 2    3 0xffffffff82649000  735K linux.ko (/boot/kernel/linux.ko)
113        Contains modules:
114                 Id Name
115                  2 linuxelf
116.Ed
117.Pp
118Show the status of the
119.Em linuxelf
120module obtained from the example above:
121.Bd -literal -offset indent
122$ kldstat -v -m linuxelf
123Id  Refs Name
124  2    1 linuxelf
125.Ed
126.Pp
127Show the module specific data for the
128.Em g_raid
129module:
130.Bd -literal -offset indent
131$ kldstat -d -m g_raid
132Id  Refs Name data..(int, uint, ulong)
133366    1 g_raid (0, 0, 0x0)
134.Ed
135.Pp
136Check if the module
137.Em fakefile
138is linked.
139Returns 0 if it is, 1 otherwise:
140.Bd -literal -offset indent
141$ kldstat -q -n fakefile || echo file not linked
142file not linked
143.Ed
144.Sh SEE ALSO
145.Xr kldstat 2 ,
146.Xr kldload 8 ,
147.Xr kldunload 8
148.Sh HISTORY
149The
150.Nm
151utility first appeared in
152.Fx 3.0 ,
153replacing the
154.Nm lkm
155interface.
156.Sh AUTHORS
157.An Doug Rabson Aq Mt dfr@FreeBSD.org
158