Unresolved symbol
Hi everybody, I'm learning to make kernel modules and am currently working on a block device driver. I had installed kernel version 2.2.16-22 (RH - 7.0) and then changed it to 2.2.16 (downloaded from kernel.org). PROBLEM : When I try to "insmod blkdev.o" it gives a message "unresolved symbol __constant_test_bit unresolved symbol __test_bit" and the module is not inserted . These two are being generated because I'm using INIT_REQUEST. If I put INIT_REQUEST in comments (/* */) the module gets inserted. But of course it doesn't work the way it should because of obvious reasons. Can anybody tell me where am I going wrong ? NOTE : I've included asm/bitops.h which has these two functions. HOW I INSTALLED MY NEW KERNEL (2.2.16): Probably I'm going wrong in my links. So here I reproduce the actual steps I took 1. tar -xvf linux-2.2.16 in /usr/src 2. The new source tree was installed in /usr/src/linux so, mv linux linux-new ln -s /usr/src/linux-new linux 3. Then I got my links right i.e. in /usr/include I did ln -s /usr/src/linux/include/linux linux ln -s /usr/src/linux/include/asm asm ln -s /usr/src/linux/include/scsi scsi 4. cd /usr/src/linux make mrproper make menuconfig make dep make clean make bzImage make modules make modules_install 5.cp /usr/src/linux/arch/i-386/boot/bzImage /boot/new 6. Updated/etc/lilo.conf and ran lilo 7. Rebooted from this new kernel 8. Now I compiled my block device driver module and tried to insert it and it gave me the aforesaid error. NOTE : 1. They say RH7.0 doesn't have a stable gcc so I had done cd /usr/bin rm -f gcc ln -s /usr/bin/kgcc gcc before recompiling the kernel. 2. insmod blkdev.o -f doesn't work either I'm not on any mailing list so please reply to me separately Thanks for your time I'd be glad if somebody can help me out Regards Sumit
Re: Unresolved symbol
On Tue, Jul 10, 2001 at 04:51:00PM +0530, sumit kalra wrote: Hi everybody, I'm learning to make kernel modules and am currently working on a block device driver. I had installed kernel version 2.2.16-22 (RH - 7.0) and then changed it to 2.2.16 (downloaded from kernel.org). FYI, this is a Debian mailing list. Maybe you could post to Suse lists. -- Eric VAN BUGGENHAUT [EMAIL PROTECTED] -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Unresolved symbol
Hi everybody, I'm learning to make kernel modules and am currently working on a block device driver. I had installed kernel version 2.2.16-22 (RH - 7.0) and then changed it to 2.2.16 (downloaded from kernel.org). PROBLEM : When I try to "insmod blkdev.o" it gives a message "unresolved symbol __constant_test_bit unresolved symbol __test_bit" and the module is not inserted . These two are being generated because I'm using INIT_REQUEST. If I put INIT_REQUEST in comments (/* */) the module gets inserted. But of course it doesn't work the way it should because of obvious reasons. Can anybody tell me where am I going wrong ? NOTE : I've included asm/bitops.h which has these two functions. HOW I INSTALLED MY NEW KERNEL (2.2.16): Probably I'm going wrong in my links. So here I reproduce the actual steps I took 1. tar -xvf linux-2.2.16 in /usr/src 2. The new source tree was installed in /usr/src/linux so, mv linux linux-new ln -s /usr/src/linux-new linux 3. Then I got my links right i.e. in /usr/include I did ln -s /usr/src/linux/include/linux linux ln -s /usr/src/linux/include/asm asm ln -s /usr/src/linux/include/scsi scsi 4. cd /usr/src/linux make mrproper make menuconfig make dep make clean make bzImage make modules make modules_install 5.cp /usr/src/linux/arch/i-386/boot/bzImage /boot/new 6. Updated/etc/lilo.conf and ran lilo 7. Rebooted from this new kernel 8. Now I compiled my block device driver module and tried to insert it and it gave me the aforesaid error. NOTE : 1. They say RH7.0 doesn't have a stable gcc so I had done cd /usr/bin rm -f gcc ln -s /usr/bin/kgcc gcc before recompiling the kernel. 2. insmod blkdev.o -f doesn't work either I'm not on any mailing list so please reply to me separately Thanks for your time I'd be glad if somebody can help me out Regards Sumit
Re: Unresolved symbol
On Tue, Jul 10, 2001 at 04:51:00PM +0530, sumit kalra wrote: Hi everybody, I'm learning to make kernel modules and am currently working on a block device driver. I had installed kernel version 2.2.16-22 (RH - 7.0) and then changed it to 2.2.16 (downloaded from kernel.org). FYI, this is a Debian mailing list. Maybe you could post to Suse lists. -- Eric VAN BUGGENHAUT [EMAIL PROTECTED]
