Problems in compiling the module "/net/ieee80211"

Problems in compiling the module "/net/ieee80211"

[Anuj Tripathi]

Hi

I am trying to compile the kernel source code of .c files in 
/linux-2.6.17.11/net/ieee80211 in  a standalone manner. My aim is to 
profile these files, especially the security functions, and to find the 
bottlenecks in the implementation and then to fine tune it.

While compiling them as

 gcc -D__KERNEL__ -I ../../kernel2/linux-2.6.17.11/include ieee80211_crypt.c

I initially got error with KBUILD but was able to remove it. Now 
following are the errors I am getting.


In file included from ../../kernel2/linux-2.6.17.11/include/asm/smp.h:18,
                 from ../../kernel2/linux-2.6.17.11/include/linux/smp.h:19,
                 from 
../../kernel2/linux-2.6.17.11/include/linux/sched.h:26,
                 from 
../../kernel2/linux-2.6.17.11/include/linux/module.h:12,
                 from ieee80211_crypt.c:15:
../../kernel2/linux-2.6.17.11/include/asm/mpspec.h:6:25: error: 
mach_mpspec.h: No such file or directory
In file included from ../../kernel2/linux-2.6.17.11/include/asm/smp.h:18,
                 from ../../kernel2/linux-2.6.17.11/include/linux/smp.h:19,
                 from 
../../kernel2/linux-2.6.17.11/include/linux/sched.h:26,
                 from 
../../kernel2/linux-2.6.17.11/include/linux/module.h:12,
                 from ieee80211_crypt.c:15:
../../kernel2/linux-2.6.17.11/include/asm/mpspec.h:8: error: 
'MAX_MP_BUSSES' undeclared here (not in a function)
../../kernel2/linux-2.6.17.11/include/asm/mpspec.h:22: error: 
'MAX_IRQ_SOURCES' undeclared here (not in a function)
In file included from ../../kernel2/linux-2.6.17.11/include/linux/smp.h:19,
                 from 
../../kernel2/linux-2.6.17.11/include/linux/sched.h:26,
                 from 
../../kernel2/linux-2.6.17.11/include/linux/module.h:12,
                 from ieee80211_crypt.c:15:
../../kernel2/linux-2.6.17.11/include/asm/smp.h:77:26: error: 
mach_apicdef.h: No such file or directory
In file included from ../../kernel2/linux-2.6.17.11/include/linux/irq.h:22,
                 from ../../kernel2/linux-2.6.17.11/include/asm/hardirq.h:6,
                 from 
../../kernel2/linux-2.6.17.11/include/linux/hardirq.h:7,
                 from 
../../kernel2/linux-2.6.17.11/include/linux/interrupt.h:11,
                 from 
../../kernel2/linux-2.6.17.11/include/asm/highmem.h:24,
                 from 
../../kernel2/linux-2.6.17.11/include/linux/highmem.h:24,
                 from 
../../kernel2/linux-2.6.17.11/include/linux/skbuff.h:27,
                 from 
../../kernel2/linux-2.6.17.11/include/linux/if_ether.h:111,
                 from 
../../kernel2/linux-2.6.17.11/include/net/ieee80211.h:28,
                 from ieee80211_crypt.c:19:
../../kernel2/linux-2.6.17.11/include/asm/irq.h:16:25: error: 
irq_vectors.h: No such file or directory
In file included from ../../kernel2/linux-2.6.17.11/include/asm/hardirq.h:6,
                 from 
../../kernel2/linux-2.6.17.11/include/linux/hardirq.h:7,
                 from 
../../kernel2/linux-2.6.17.11/include/linux/interrupt.h:11,
                 from 
../../kernel2/linux-2.6.17.11/include/asm/highmem.h:24,
                 from 
../../kernel2/linux-2.6.17.11/include/linux/highmem.h:24,
                 from 
../../kernel2/linux-2.6.17.11/include/linux/skbuff.h:27,
                 from 
../../kernel2/linux-2.6.17.11/include/linux/if_ether.h:111,
                 from 
../../kernel2/linux-2.6.17.11/include/net/ieee80211.h:28,
                 from ieee80211_crypt.c:19:
../../kernel2/linux-2.6.17.11/include/linux/irq.h:85: error: 'NR_IRQS' 
undeclared here (not in a function)
In file included from ../../kernel2/linux-2.6.17.11/include/linux/irq.h:94,
                 from ../../kernel2/linux-2.6.17.11/include/asm/hardirq.h:6,
                 from 
../../kernel2/linux-2.6.17.11/include/linux/hardirq.h:7,
                 from 
../../kernel2/linux-2.6.17.11/include/linux/interrupt.h:11,
                 from 
../../kernel2/linux-2.6.17.11/include/asm/highmem.h:24,
                 from 
../../kernel2/linux-2.6.17.11/include/linux/highmem.h:24,
                 from 
../../kernel2/linux-2.6.17.11/include/linux/skbuff.h:27,
                 from 
../../kernel2/linux-2.6.17.11/include/linux/if_ether.h:111,
                 from 
../../kernel2/linux-2.6.17.11/include/net/ieee80211.h:28,
                 from ieee80211_crypt.c:19:
../../kernel2/linux-2.6.17.11/include/asm/hw_irq.h:30: error: 
'NR_IRQ_VECTORS' undeclared here (not in a function)
In file included from 
../../kernel2/linux-2.6.17.11/include/linux/if_ether.h:111,
                 from 
../../kernel2/linux-2.6.17.11/include/net/ieee80211.h:28,
                 from ieee80211_crypt.c:19:
../../kernel2/linux-2.6.17.11/include/linux/skbuff.h: In function 
'skb_add_data':
../../kernel2/linux-2.6.17.11/include/linux/skbuff.h:1140: warning: 
pointer targets in passing argument 1 of 'csum_and_copy_from_user' 
differ in signedness


can someone tell me how can i get over with these errors ? Moreover is 
there any other way of profiling the specific module (/net/ieee802.11) 
through which i can find out the bottleneck ???

ThanX
-Anuj Tripathi
Mtech 05, IIT Bombay

Re: Problems in compiling the module "/net/ieee80211"

[Jesper Juhl]

On 18/09/06, Anuj Tripathi <anujt@it.iitb.ac.in> wrote:
> Hi
>
> I am trying to compile the kernel source code of .c files in
> /linux-2.6.17.11/net/ieee80211 in  a standalone manner.

What's wrong with :

$ make allyesconfig
$ make net/ieee80211/

 ???

-- 
Jesper Juhl <jesper.juhl@gmail.com>
Don't top-post  http://www.catb.org/~esr/jargon/html/T/top-post.html
Plain text mails only, please      http://www.expita.com/nomime.html

Re: Problems in compiling the module "/net/ieee80211"

[linux-os (Dick Johnson)]

On Mon, 18 Sep 2006, Anuj Tripathi wrote:

> Hi
>
> I am trying to compile the kernel source code of .c files in
> /linux-2.6.17.11/net/ieee80211 in  a standalone manner. My aim is to
> profile these files, especially the security functions, and to find the
> bottlenecks in the implementation and then to fine tune it.
>
> While compiling them as
>
> gcc -D__KERNEL__ -I ../../kernel2/linux-2.6.17.11/include ieee80211_crypt.c
>
> I initially got error with KBUILD but was able to remove it. Now
> following are the errors I am getting.


THEY (whoever 'they' are) don't want you to build modules that way
anymore. THEY don't want you to use standard tools in standard ways.
The module build procedure has been obfuscated to punish people
like you who are obviously traditionalists. However, if you insist
upon building a module the traditional way, try this:

#
VRS := $(shell uname -r)
INC := $(shell gcc --print-file-name include)
NAME   = YOUR_MODULE_NAME
CC     = gcc -Wall -O2 -nostdinc -fomit-frame-pointer
INCL   = -I$(INC)
INCL  += -I/usr/src/linux-$(VRS)/include
INCL  += -I/usr/src/linux-$(VRS)/include/asm/mach-default
DEFS   = -D__KERNEL__ -DMODULE -DMAJOR_NR=$(MAJR) -DCONFIG_SMP=1
DEFS  += -DMODNAME=$(NAME) -DKBUILD_BASENAME=\"$(NAME)\"
CC    += $(DEFS) $(INCL) -fno-strict-aliasing

... After that, you are going to have to link your module with:


#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/compiler.h>
#define DEREF(x) (#x)
#define MKSTR(x) DEREF(x)
#include <linux/vermagic.h>
MODULE_INFO(vermagic, VERMAGIC_STRING);
struct module __attribute__((section(".gnu.linkonce.this_module")))
  __this_module = {
  .name = MKSTR(MODNAME),
  .init = init_module,
  .exit = cleanup_module,
};
static const char __attribute_used__ __attribute__((section(".modinfo")))
__module_depends[]="depends=";


... to make a ".ko" file. See! Isn't that fun?


Cheers,
Dick Johnson
Penguin : Linux version 2.6.16.24 on an i686 machine (5592.66 BogoMips).
New book: http://www.AbominableFirebug.com/
_
\x1a\x04

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