NAME¶
kldunload
,
kldunloadf
—
unload kld files
LIBRARY¶
Standard C Library (libc, -lc)
SYNOPSIS¶
#include
<sys/param.h>
#include
<sys/linker.h>
int
kldunload
(
int
fileid);
int
kldunloadf
(
int
fileid,
int
flags);
DESCRIPTION¶
The
kldunload
() system call unloads a kld
file from the kernel that was previously linked via
kldload(2).
The
kldunloadf
() system call accepts an
additional flags argument, which may be one of
LINKER_UNLOAD_NORMAL
, giving the same
behavior as
kldunload
(), or
LINKER_UNLOAD_FORCE
, which causes the
unload to ignore a failure to quiesce the module.
RETURN VALUES¶
Upon successful completion, the value 0 is returned; otherwise the
value -1 is returned and the global variable
errno is set to indicate the error.
ERRORS¶
The file referred to by
fileid is unloaded
unless:
- [
EPERM
]
- You do not have access to unlink the file from the kernel.
- [
ENOENT
]
- The file was not found.
- [
EBUSY
]
- You attempted to unload a file linked by the kernel.
- [
EINVAL
]
- The
kldunloadf
() system call was passed
invalid flags.
SEE ALSO¶
kldfind(2),
kldfirstmod(2),
kldload(2),
kldnext(2),
kldstat(2),
kldsym(2),
modfind(2),
modfnext(2),
modnext(2),
modstat(2),
kld(4),
kldunload(8)
HISTORY¶
The
kld
interface first appeared in
FreeBSD 3.0.