create_module(2) - Linux manual page (original) (raw)

createmodule(2) System Calls Manual createmodule(2)

NAME top

   create_module - create a loadable module entry

SYNOPSIS top

   **#include <linux/module.h>**

   **[[deprecated]] caddr_t create_module(const char ***_name_**, size_t** _size_**);**

DESCRIPTION top

   _Note_: This system call is present only before Linux 2.6.

   **create_module**() attempts to create a loadable module entry and
   reserve the kernel memory that will be needed to hold the module.
   This system call requires privilege.

RETURN VALUE top

   On success, returns the kernel address at which the module will
   reside.  On error, -1 is returned and _[errno](../man3/errno.3.html)_ is set to indicate the
   error.

ERRORS top

   **EEXIST** A module by that name already exists.

   **EFAULT** _name_ is outside the program's accessible address space.

   **EINVAL** The requested size is too small even for the module header
          information.

   **ENOMEM** The kernel could not allocate a contiguous block of memory
          large enough for the module.

   **ENOSYS create_module**() is not supported in this version of the
          kernel (e.g., Linux 2.6 or later).

   **EPERM** The caller was not privileged (did not have the
          **CAP_SYS_MODULE** capability).

STANDARDS top

   Linux.

HISTORY top

   Removed in Linux 2.6.

   This obsolete system call is not supported by glibc.  No
   declaration is provided in glibc headers, but, through a quirk of
   history, glibc versions before glibc 2.23 did export an ABI for
   this system call.  Therefore, in order to employ this system call,
   it was sufficient to manually declare the interface in your code;
   alternatively, you could invoke the system call using [syscall(2)](../man2/syscall.2.html).

SEE ALSO top

   [delete_module(2)](../man2/delete%5Fmodule.2.html), [init_module(2)](../man2/init%5Fmodule.2.html), [query_module(2)](../man2/query%5Fmodule.2.html)

COLOPHON top

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Linux man-pages 6.10 2024-05-02 createmodule(2)

Pages that refer to this page:delete_module(2), get_kernel_syms(2), init_module(2), query_module(2), syscalls(2), unimplemented(2), systemd.exec(5)