xref: /dragonfly/lib/libc/sys/kldstat.2 (revision 2b3f93ea)
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26.\" $FreeBSD: src/lib/libc/sys/kldstat.2,v 1.5.2.8 2001/12/14 18:34:01 ru Exp $
27.\"
28.Dd February 10, 2023
29.Dt KLDSTAT 2
30.Os
31.Sh NAME
32.Nm kldstat
33.Nd get status of kld file
34.Sh LIBRARY
35.Lb libc
36.Sh SYNOPSIS
37.In sys/param.h
38.In sys/linker.h
39.Ft int
40.Fn kldstat "int fileid" "struct kld_file_stat *stat"
41.Sh DESCRIPTION
42The
43.Fn kldstat
44function writes the info for the file referred to by
45.Fa fileid
46into
47.Fa stat .
48.Bd -literal
49struct kld_file_stat {
50	int         version;        /* set to sizeof(linker_file_stat) */
51	char        name[MAXPATHLEN];
52	char        pathname[MAXPATHLEN];
53	int         refs;
54	int         id;
55	caddr_t     address;        /* load address */
56	size_t      size;           /* size in bytes */
57};
58.Ed
59.Bl -tag -width XXXpathname
60.It version
61This field is set to the size of the structure mentioned above by the code
62calling
63.Fn kldstat ,
64and not
65.Fn kldstat
66itself.
67.It name
68The name of the file referred to by
69.Fa fileid .
70.It pathname
71The full path of the file referred to by
72.Fa fileid .
73.It refs
74The number of modules referenced by
75.Fa fileid .
76.It id
77The id of the file specified in
78.Fa fileid .
79.It address
80The load address of the kld file.
81.It size
82The size of the file.
83.El
84.Sh RETURN VALUES
85.Rv -std kldstat
86.Sh ERRORS
87The information for the file referred to by
88.Fa fileid
89is filled into the structure pointed to by
90.Fa stat
91unless:
92.Bl -tag -width Er
93.It Bq Er ENOENT
94The file was not found (probably not loaded).
95.It Bq Er EINVAL
96The version specified in the
97.Fa version
98field of stat is not the proper version.  You would need to rebuild world, the
99kernel, or your application, if this error occurs, given that you did properly
100fill in the
101.Fa version
102field.
103.It Bq Er EFAULT
104There was a problem copying one, some, or all of the fields into
105.Fa stat
106in the
107.Fn copyout
108function.
109.El
110.Sh SEE ALSO
111.Xr kldfind 2 ,
112.Xr kldfirstmod 2 ,
113.Xr kldload 2 ,
114.Xr kldnext 2 ,
115.Xr kldsym 2 ,
116.Xr kldunload 2 ,
117.Xr modfind 2 ,
118.Xr modfnext 2 ,
119.Xr modnext 2 ,
120.Xr modstat 2 ,
121.Xr kld 4 ,
122.Xr kldstat 8
123.Sh HISTORY
124The
125.Nm kld
126interface first appeared in
127.Fx 3.0 .
128