添加实验2 代码

		    GNU GENERAL PUBLIC LICENSE

		       Version 2, June 1991

 Copyright (C) 1989, 1991 Free Software Foundation, Inc.

                       51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

 Everyone is permitted to copy and distribute verbatim copies

 of this license document, but changing it is not allowed.

			    Preamble

  The licenses for most software are designed to take away your

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  When we speak of free software, we are referring to freedom, not

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  To protect your rights, we need to make restrictions that forbid

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These restrictions translate to certain responsibilities for you if you

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  We protect your rights with two steps: (1) copyright the software, and

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  The precise terms and conditions for copying, distribution and

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		    GNU GENERAL PUBLIC LICENSE

   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION

  0. This License applies to any program or other work which contains

a notice placed by the copyright holder saying it may be distributed

under the terms of this General Public License.  The "Program", below,

refers to any such program or work, and a "work based on the Program"

means either the Program or any derivative work under copyright law:

that is to say, a work containing the Program or a portion of it,

either verbatim or with modifications and/or translated into another

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the term "modification".)  Each licensee is addressed as "you".

Activities other than copying, distribution and modification are not

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running the Program is not restricted, and the output from the Program

is covered only if its contents constitute a work based on the

Program (independent of having been made by running the Program).

Whether that is true depends on what the Program does.

  1. You may copy and distribute verbatim copies of the Program's

source code as you receive it, in any medium, provided that you

conspicuously and appropriately publish on each copy an appropriate

copyright notice and disclaimer of warranty; keep intact all the

notices that refer to this License and to the absence of any warranty;

and give any other recipients of the Program a copy of this License

along with the Program.

You may charge a fee for the physical act of transferring a copy, and

you may at your option offer warranty protection in exchange for a fee.

  2. You may modify your copy or copies of the Program or any portion

of it, thus forming a work based on the Program, and copy and

distribute such modifications or work under the terms of Section 1

above, provided that you also meet all of these conditions:

    a) You must cause the modified files to carry prominent notices

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    b) You must cause any work that you distribute or publish, that in

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    c) If the modified program normally reads commands interactively

    when run, you must cause it, when started running for such

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    announcement including an appropriate copyright notice and a

    notice that there is no warranty (or else, saying that you provide

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    the Program is not required to print an announcement.)

These requirements apply to the modified work as a whole.  If

identifiable sections of that work are not derived from the Program,

and can be reasonably considered independent and separate works in

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distribute the same sections as part of a whole which is a work based

on the Program, the distribution of the whole must be on the terms of

this License, whose permissions for other licensees extend to the

entire whole, and thus to each and every part regardless of who wrote it.

Thus, it is not the intent of this section to claim rights or contest

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exercise the right to control the distribution of derivative or

collective works based on the Program.

In addition, mere aggregation of another work not based on the Program

with the Program (or with a work based on the Program) on a volume of

a storage or distribution medium does not bring the other work under

the scope of this License.

  3. You may copy and distribute the Program (or a work based on it,

under Section 2) in object code or executable form under the terms of

Sections 1 and 2 above provided that you also do one of the following:

    a) Accompany it with the complete corresponding machine-readable

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except as expressly provided under this License.  Any attempt

otherwise to copy, modify, sublicense or distribute the Program is

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license would not permit royalty-free redistribution of the Program by

all those who receive copies directly or indirectly through you, then

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If any portion of this section is held invalid or unenforceable under

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It is not the purpose of this section to induce you to infringe any

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This section is intended to make thoroughly clear what is believed to

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the limitation as if written in the body of this License.

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of the General Public License from time to time.  Such new versions will

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Each version is given a distinguishing version number.  If the Program

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  10. If you wish to incorporate parts of the Program into other free

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			    NO WARRANTY

  11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY

FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW.  EXCEPT WHEN

OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES

PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED

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WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR

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PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE

POSSIBILITY OF SUCH DAMAGES.

		     END OF TERMS AND CONDITIONS

	    How to Apply These Terms to Your New Programs

  If you develop a new program, and you want it to be of the greatest

possible use to the public, the best way to achieve this is to make it

free software which everyone can redistribute and change under these terms.

  To do so, attach the following notices to the program.  It is safest

to attach them to the start of each source file to most effectively

convey the exclusion of warranty; and each file should have at least

the "copyright" line and a pointer to where the full notice is found.

    <one line to give the program's name and a brief idea of what it does.>

    Copyright (C) <year>  <name of author>

    This program is free software; you can redistribute it and/or modify

    it under the terms of the GNU General Public License as published by

    the Free Software Foundation; either version 2 of the License, or

    (at your option) any later version.

    This program is distributed in the hope that it will be useful,

    but WITHOUT ANY WARRANTY; without even the implied warranty of

    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License

    along with this program; if not, write to the Free Software

    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

Also add information on how to contact you by electronic and paper mail.

If the program is interactive, make it output a short notice like this

when it starts in an interactive mode:

    Gnomovision version 69, Copyright (C) year name of author

    Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.

    This is free software, and you are welcome to redistribute it

    under certain conditions; type `show c' for details.

The hypothetical commands `show w' and `show c' should show the appropriate

parts of the General Public License.  Of course, the commands you use may

be called something other than `show w' and `show c'; they could even be

mouse-clicks or menu items--whatever suits your program.

You should also get your employer (if you work as a programmer) or your

school, if any, to sign a "copyright disclaimer" for the program, if

necessary.  Here is a sample; alter the names:

  Yoyodyne, Inc., hereby disclaims all copyright interest in the program

  `Gnomovision' (which makes passes at compilers) written by James Hacker.

  <signature of Ty Coon>, 1 April 1989

  Ty Coon, President of Vice

This General Public License does not permit incorporating your program into

proprietary programs.  If your program is a subroutine library, you may

consider it more useful to permit linking proprietary applications with the

library.  If this is what you want to do, use the GNU Library General

Public License instead of this License.

obj-m := kmalloc.o

SRC := $(shell pwd)

all:

	$(MAKE) -C $(KERNEL_SRC) M=$(SRC)

modules_install:

	$(MAKE) -C $(KERNEL_SRC) M=$(SRC) modules_install

clean:

	rm -f *.o *~ core .depend .*.cmd *.ko *.mod.c

	rm -f Module.markers Module.symvers modules.order

	rm -rf .tmp_versions Modules.symvers

/******************************************************************************

 *

 *   Copyright (C) 2011  Intel Corporation. All rights reserved.

 *

 *   This program is free software;  you can redistribute it and/or modify

 *   it under the terms of the GNU General Public License as published by

 *   the Free Software Foundation; version 2 of the License.

 *

 *   This program is distributed in the hope that it will be useful,

 *   but WITHOUT ANY WARRANTY;  without even the implied warranty of

 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See

 *   the GNU General Public License for more details.

 *

 *   You should have received a copy of the GNU General Public License

 *   along with this program;  if not, write to the Free Software

 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA

 *

 *****************************************************************************/

#include <linux/module.h>

#include <linux/slab.h>

static int __init k_malloc_init(void)

{

	char *kaddr_1K = NULL;

	char *kaddr_8K = NULL;

	pr_info("Hello World!\n");

	kaddr_1K = kmalloc((1 * 1024),GFP_KERNEL);

	pr_info("kaddr_1K : %p\n",kaddr_1K);

	kaddr_8K = kmalloc((8 * 1024),GFP_KERNEL);

	pr_info("kaddr_8K : %p\n",kaddr_8K);

	return 0;

}

static void __exit k_malloc_exit(void)

{

	pr_info("Goodbye Cruel World!\n");

}

module_init(k_malloc_init);

module_exit(k_malloc_exit);

MODULE_LICENSE("GPL");

SUMMARY = "Example of how to build an external Linux kernel module"

DESCRIPTION = "${SUMMARY}"

LICENSE = "GPLv2"

LIC_FILES_CHKSUM = "file://COPYING;md5=12f884d2ae1ff87c09e5b7ccc2c4ca7e"

inherit module

SRC_URI = "file://Makefile \

           file://kmalloc.c \

           file://COPYING \

          "

S = "${WORKDIR}"

# The inherit of module.bbclass will automatically name module packages with

# "kernel-module-" prefix as required by the oe-core build environment.

RPROVIDES:${PN} += "kernel-module-kmalloc"