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You are here: manpages





CREATE_MODULE

Section: Linux Programmer's Manual (2)
Updated: 2014-05-10
Index Return to Main Contents
 

NAME

create_module - create a loadable module entry  

SYNOPSIS

#include <linux/module.h>

caddr_t create_module(const char *name, size_t size);

Note: No declaration of this function is provided in glibc headers; see NOTES.  

DESCRIPTION

Note: This system call is present only in kernels 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

On success, returns the kernel address at which the module will reside. On error, -1 is returned and errno is set appropriately.  

ERRORS

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., the kernel is version 2.6 or later).
EPERM
The caller was not privileged (did not have the CAP_SYS_MODULE capability).
 

VERSIONS

This system call is present on Linux only up until kernel 2.4; it was removed in Linux 2.6.  

CONFORMING TO

create_module() is Linux-specific.  

NOTES

The create_module() system call is not supported by glibc. No declaration is provided in glibc headers, but, through a quirk of history, glibc does export an ABI for this system call. Therefore, in order to employ this system call, it is sufficient to manually declare the interface in your code; alternatively, you can invoke the system call using syscall(2).  

SEE ALSO

delete_module(2), init_module(2), query_module(2)  

COLOPHON

This page is part of release 3.81 of the Linux man-pages project. A description of the project, information about reporting bugs, and the latest version of this page, can be found at http://www.kernel.org/doc/man-pages/.


 

Index

NAME
SYNOPSIS
DESCRIPTION
RETURN VALUE
ERRORS
VERSIONS
CONFORMING TO
NOTES
SEE ALSO
COLOPHON


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