LinuxQuestions.org - irq_vectors.h not found

- Linux - Kernel (https://www.linuxquestions.org/questions/linux-kernel-70/)

- - irq_vectors.h not found (https://www.linuxquestions.org/questions/linux-kernel-70/irq_vectors-h-not-found-827946/)

irq_vectors.h not found

Hello

I am rewriting the code of a kernel module which was.
The flags of request_irq have changed. Hence I changed

request_irq(irq, vme_isr, SA_SHIRQ, MODULE_NAME, &file_ops))
to
request_irq(irq, (void*) vme_isr, IRQF_SHARED, MODULE_NAME, &file_ops)).

I also need to include linux/interrupt.h now. This results in irq_vectors.h not being found. NR_VECTORS, and NR_IRQS are undeclarded. I am using kernel version 2.6.24

Here my includes:

#include "common.h" // this includes /linux/version.h , /linux/autoconf.h
and linux/modversions.h

#include <linux/types.h>
#include <linux/list.h>
#include <linux/wait.h>
#include <linux/interrupt.h>

And here the error message

Code:

cc -D__KERNEL__ -DMODULE -DNO_RT -I/usr/src/linux-2.6.24/include/config  -I/usr/src/linux-2.6.24/include  -O -Wall  -c -o vme_pb1650_main.o vme_pb1650_main.c

In file included from /usr/src/linux-2.6.24/include/asm/irq.h:2,

                from /usr/src/linux-2.6.24/include/linux/irq.h:23,

                from /usr/src/linux-2.6.24/include/asm/hardirq_32.h:5,

                from /usr/src/linux-2.6.24/include/asm/hardirq.h:2,

                from /usr/src/linux-2.6.24/include/linux/hardirq.h:7,

                from /usr/src/linux-2.6.24/include/linux/interrupt.h:11,

                from vme_pb1650_main.c:11:

/usr/src/linux-2.6.24/include/asm/irq_32.h:15:25: error: irq_vectors.h: No such file or directory

In file included from /usr/src/linux-2.6.24/include/asm/irq.h:2,

                from /usr/src/linux-2.6.24/include/linux/irq.h:23,

                from /usr/src/linux-2.6.24/include/asm/hardirq_32.h:5,

                from /usr/src/linux-2.6.24/include/asm/hardirq.h:2,

                from /usr/src/linux-2.6.24/include/linux/hardirq.h:7,

                from /usr/src/linux-2.6.24/include/linux/interrupt.h:11,

                from vme_pb1650_main.c:11:

/usr/src/linux-2.6.24/include/asm/irq_32.h:49: error: 'NR_VECTORS' undeclared here (not in a function)

In file included from /usr/src/linux-2.6.24/include/asm/hardirq_32.h:5,

                from /usr/src/linux-2.6.24/include/asm/hardirq.h:2,

                from /usr/src/linux-2.6.24/include/linux/hardirq.h:7,

                from /usr/src/linux-2.6.24/include/linux/interrupt.h:11,

                from vme_pb1650_main.c:11:

/usr/src/linux-2.6.24/include/linux/irq.h:180: error: 'NR_IRQS' undeclared here (not in a function)

make: *** [vme_pb1650_main.o] Error 1

Any ideas of what I am doing wrong ?

Thanks

Tilman

Should we assume that you have *successfully* installed the kernel-devel package ?

I would think so: I have successfully compiled the kernel 2.6.24. It runs fine.

And I have successfully compiled a driver (kernel module for vme bus support) external to kernel.

The question of yours is however a very valid one, as I do a cross compilation for an x86 embedded platlform.
Maybe some paths are missing from my makefile.
I given only /usr/src/linux-2.6.24/include as -I to gcc

Tilman

Here the files.

Makefile:

Code:

KERNELREV:=2.6.24

KERNELSRC:=/usr/src/linux-2.6.24



MODNAME:=vme_pb1650.o

MODDIR:=/var/nfs/vmic7750/lib/modules/2.6.24/build



CFLAGS = -D__KERNEL__ -DNO_RT -DMODULE

#CFLAGS += -I$(KERNELSRC)/include/config

CFLAGS += -I$(KERNELSRC)/include

CFLAGS += -Wall

CFLAGS += -O2 -fPIC





all: $(MODNAME)



install: all

        install -m0644 -oroot -groot -D $(MODNAME) $(MODDIR)/$(MODNAME)

        /sbin/depmod



uninstall:

        rm -f $(MODDIR)/$(MODNAME)



$(MODNAME): test1.o

        $(LD) -r $^ -o $@



.PHONY : clean

clean:

        rm -f *.o *

test1.c

Code:

#include "common.h"



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

// INCLUDES

#include <linux/types.h>

#include <linux/list.h>

#include <linux/wait.h>

#include <linux/interrupt.h>







#include <linux/module.h>

common.h

Code:

#ifndef __COMMON_H__

#define __COMMON_H__



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

// DEFINES

#ifndef __KERNEL__

  #define __KERNEL__

#endif

#ifndef MODULE

  #define MODULE

#endif



#include <linux/version.h>  // if this file is not found: please look @ /boot/vmlinuz.version.h and make a symlink



// support for MODVERSIONS

#ifndef AUTOCONF_INCLUDED

#include <linux/autoconf.h>

#endif



#if defined(CONFIG_MODVERSIONS) && !defined(MODVERSIONS)

  #define MODVERSIONS

#endif



#ifdef MODVERSIONS

  #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)

    #if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,10)

      #include <config/modversions.h>

  #endif

  #else

    #include <linux/modversions.h>

  #endif

#endif



  #define DO_GETTIMEOFDAY(tv) do_gettimeofday(&tv)





// support only versions 2.4.x and 2.6.x

#if LINUX_VERSION_CODE < KERNEL_VERSION(2,4,0)

  #error "This kernel is too old and not supported"

#else

  #if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)

    #define LINUX_24 // >= LINUX 2.4.x && < LINUX 2.6

  #else

    #define LINUX_26 // >= LINUX 2.6

  #endif

#endif



// some preparative definitions for kernel 2.6.x

#if LINUX_VERSION_CODE < KERNEL_VERSION(2,4,23)

  typedef void irqreturn_t;

  #define IRQ_NONE

  #define IRQ_HANDLED

  #define IRQ_RETVAL(x)

#endif



  //#define PCAN_IRQ_RETVAL(x) IRQ_RETVAL(x)



  #define INIT_LOCK(lock) spin_lock_init(lock)

  #define DECLARE_SPIN_LOCK_IRQSAVE_FLAGS unsigned long flags

  #define SPIN_LOCK_IRQSAVE(lock) spin_lock_irqsave(lock, flags)

  #define SPIN_UNLOCK_IRQRESTORE(lock) spin_unlock_irqrestore(lock, flags)



//#endif



// count of function variables changed from 2.6.19

#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19)

#define  IRQHANDLER(name, p1, p2, p3) name(p1, p2, p3)

#else

#define  IRQHANDLER(name, p1, p2, p3) name(p1, p2)

#endif



// switch to disable all printks for not debugging

#ifdef DEBUG

  #define DPRINTK printk

#else

  #define DPRINTK(stuff...)

#endif



// to manage differences between kernel versions



// to get smoothly into udev

#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,17)

#define UDEV_SUPPORT

#endif



// follow current interrupt definition changes

#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,18)

#define IRQF_DISABLED SA_INTERRUPT

#define IRQF_SHARED  SA_SHIRQ

#endif



// different data sink alternatives





#define DEVICE_NAME      "pb1650"                            // the name of the module and the proc entry





#endif // __COMMON_H

Try including this:

Code:

#include <asm/irq_vectors.h>

and see this thread too:
http://osdir.com/ml/linux.newbie/2003-02/msg00142.html

I added an additional include path:
-I/usr/src/linux-2.6.24/include/asm-x86/mach-default/

Now I am getting a warning message. Does it point to a serious issue ? Can I ignote it ?

gcc -D__KERNEL__ -DNO_RT -DMODULE -I/usr/src/linux-2.6.24/include -I/usr/src/linux-2.6.24/include/asm-x86/mach-default/ -Wall -O2 -fPIC -c -o test1.o test1.c

In file included from /usr/src/linux-2.6.24/include/asm/cmpxchg.h:2,
from /usr/src/linux-2.6.24/include/asm/system_32.h:7,
from /usr/src/linux-2.6.24/include/asm/system.h:2,
from /usr/src/linux-2.6.24/include/asm/processor_32.h:18,
from /usr/src/linux-2.6.24/include/asm/processor.h:2,
from /usr/src/linux-2.6.24/include/asm/thread_info_32.h:16,
from /usr/src/linux-2.6.24/include/asm/thread_info.h:2,
from /usr/src/linux-2.6.24/include/linux/thread_info.h:34,
from /usr/src/linux-2.6.24/include/linux/preempt.h:9,
from /usr/src/linux-2.6.24/include/linux/interrupt.h:8,
from test1.c:8:
/usr/src/linux-2.6.24/include/asm/cmpxchg_32.h: In function '__set_64bit_var':
/usr/src/linux-2.6.24/include/asm/cmpxchg_32.h:57: warning: dereferencing type-punned pointer will break strict-aliasing rules

Do you mind thanking the person who's trying to help you ? I expected a little courtesy !

May be someone else can help you from here now.

Dear Anisha

I do appreciate the time you invested to help me. I was just not sure if the issue is closed or if this is just the start of the next round :-)

Thank you for your help
Tilman

Quote:

Originally Posted by tilman1 (Post 4077547)

I added an additional include path:
-I/usr/src/linux-2.6.24/include/asm-x86/mach-default/

Why do you need to add this? This is too deep as it is not an include directory. I was about to reply to this but anishakaul already said to #include <asm/irq_vectors.h> which is supposed to be answer also. Doesn't this work?

It did not work.

I then read a little bit about 2.6 kernel module developement and adapted the Makefile accordingly. That worked.

Code:

KERNEL_VER := linux-2.6.24

KDIR := /usr/src/$(KERNEL_VER)

PWD  := $(shell pwd)



obj-m := test1.o



all:

        $(MAKE)  -C $(KDIR) SUBDIRS=$(PWD) modules

Here the includes I used

Code:

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

// INCLUDES

#include <linux/init.h>

#include <linux/module.h>

#include <linux/kernel.h>