create_module(2) — Linux manual page

create_module(2)           System Calls Manual          create_module(2)

NAME

       create_module - create a loadable module entry

SYNOPSIS

       #include <linux/module.h>

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

DESCRIPTION

       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

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

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., Linux 2.6 or later).

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

STANDARDS

       Linux.

HISTORY

       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).

SEE ALSO

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

COLOPHON

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Linux man-pages 6.9.1          2024-05-02               create_module(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)

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