NAME
kldunload,
kldunloadf —
unload kld files
LIBRARY
library “libc”
SYNOPSIS
#include
<sys/param.h>
#include <sys/linker.h>
int
kldunload(int
fileid);
int
kldunloadf(int
fileid, int
flags);
DESCRIPTION
Thekldunload()
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.