kldload(2) [linux man page]

KLDLOAD(2)                                                    BSD System Calls Manual                                                   KLDLOAD(2)

NAME

     kldload -- load KLD files into the kernel

LIBRARY

     Standard C Library (libc, -lc)

SYNOPSIS

     #include <sys/param.h>
     #include <sys/linker.h>

     int
     kldload(const char *file);

DESCRIPTION

     The kldload() system call loads a kld file into the kernel using the kernel linker.

RETURN VALUES

     The kldload() system call returns the fileid of the kld file which was loaded into the kernel.  If an error occurs, kldload() will return -1
     and set errno to indicate the error.

ERRORS

     The named file is loaded unless:

     [EPERM]            You do not have access to read the file or link it with the kernel.  You should be the root user to be able to use the kld
                        system calls.

     [EFAULT]           Bad address encountered when adding kld info into the kernel space.

     [ENOMEM]           There is no memory to load the file into the kernel.

     [ENOENT]           The file was not found.

     [ENOEXEC]          The file format of file was unrecognized.

     [EEXIST]           The supplied file has already been loaded.

SEE ALSO

     kldfind(2), kldfirstmod(2), kldnext(2), kldstat(2), kldsym(2), kldunload(2), modfind(2), modfnext(2), modnext(2), modstat(2), kld(4),
     kldload(8)

HISTORY

     The kld interface first appeared in FreeBSD 3.0.

BSD                                                                March 3, 1999                                                               BSD

KLDSTAT(2)                                                    BSD System Calls Manual                                                   KLDSTAT(2)

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(linker_file_stat) */
             char        name[MAXPATHLEN];
             int         refs;
             int         id;
             caddr_t     address;        /* load address */
             size_t      size;           /* size in bytes */
             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 size of 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 ker-
                        nel, 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 many 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.

BSD                                                                March 3, 1999                                                               BSD