NAME

create_module - 生成一條可加載模塊記錄.  

總覽

#include <linux/module.h>

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

描述

create_module試圖生成一條可加載模塊的記錄并保留用來(lái)容納模塊的內(nèi)核空間內(nèi)存.該系統(tǒng)調(diào)用只對(duì)超級(jí)用戶(hù)開(kāi)放.  

返回值

成功時(shí)返回模塊駐留的內(nèi)核空間地址,錯(cuò)誤時(shí)返回-1,errno被相應(yīng)設(shè)置.  

錯(cuò)誤

EPERM

    用戶(hù)非超級(jí)用戶(hù).

EEXIST

    相同名字的模塊已經(jīng)存在.

EINVAL

    要求的大小即使對(duì)模塊的頭信息來(lái)說(shuō)也太小.

ENOMEM

    內(nèi)核無(wú)法給模塊分配足夠的連續(xù)的內(nèi)存塊.

EFAULT

    name 越出了程序可訪問(wèn)的地址空間.                  

#p#

NAME

create_module - create a loadable module entry  

SYNOPSIS

#include <linux/module.h>

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

DESCRIPTION

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 is only open to the superuser.  

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

EPERM

The user is not the superuser.

EEXIST

A module by that name already exists.

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.

EFAULT

name is outside the program's accessible address space.

SEE ALSO

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