NAME¶
kldstat
—
get status of kld file
LIBRARY¶
Standard C Library (libc, -lc)
SYNOPSIS¶
#include
<sys/param.h>
#include
<sys/linker.h>
int
kldstat
(
int
fileid,
struct
kld_file_stat *stat);
DESCRIPTION¶
The
kldstat
() 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 not
kldstat
() 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.