NAME
kldstat —
get status of kld file
LIBRARY
library “libc”
SYNOPSIS
#include
<sys/param.h>
#include <sys/linker.h>
int
kldstat(int
fileid, struct
kld_file_stat *stat);
DESCRIPTION
Thekldstat()
system call writes the info for the file referred to by
fileid into stat.
struct kld_file_stat {
int version; /* set to sizeof(struct kld_file_stat) */
char name[MAXPATHLEN];
int refs;
int id;
caddr_t address;
size_t size;
char pathname[MAXPATHLEN];
};
- version
- This field is set to the size of the structure mentioned above by the code
calling
kldstat(), and notkldstat() itself. - name
- The name of the file referred to by fileid.
- refs
- The number of modules referenced by fileid.
- id
- The id of the file specified in fileid.
- address
- The load address of the kld file.
- size
- The amount of memory in bytes allocated by the file.
- pathname
- The full name of the file referred to by fileid, including the path.
RETURN VALUES
The kldstat() function returns the
value 0 if successful; otherwise the value -1 is returned and
the global variable errno is set to indicate the
error.
ERRORS
The information for the file referred to by fileid is filled into the structure pointed to by stat unless:
- [
ENOENT] - The file was not found (probably not loaded).
- [
EINVAL] - The version specified in the version field of stat is not the proper version. You would need to rebuild world, the kernel, or your application, if this error occurs, given that you did properly fill in the version field.
- [
EFAULT] - There was a problem copying one, some, or all of the fields into stat in the copyout(9) function.
SEE ALSO
kldfind(2), kldfirstmod(2), kldload(2), kldnext(2), kldsym(2), kldunload(2), modfind(2), modfnext(2), modnext(2), modstat(2), kld(4), kldstat(8)
HISTORY
The kld interface first appeared in
FreeBSD 3.0.
BUGS
The pathname may not be accurate if the file system mounts have changed since the module was loaded, or if this function is called within a chrooted environment.