Messages in this thread | | | Date | Wed, 20 Aug 2003 13:19:41 -0400 (EDT) | From | "Richard B. Johnson" <> | Subject | Re: 2.6.0-test3 module compilation |
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On Wed, 20 Aug 2003 linuxmodule@altern.org wrote:
> I am trying to compile a module on 2.6.0-test3 kernel. The makefile i > am using is a pretty normal one : > > CFLAGS = -D__KERNEL__ -DMODULE -I/usr/src/linux-2.6.0-test3/include -O > dummy.o: dummy.c > > The module i am trying to compile is taken from the kernel itself > (dummy network device driver). The > compilation works flawlessly but when i try to insert the module i get > : invalid module format. > What am i doing wrong because i have modutils and module-init and both > work, since the same module (dummy) > compiled with the kernel itself can be inserted and removed > without the previous error message. > Is there something i should know about the compilation process ? > The kernel-compiled module (dummy.ko) has > about 10 Kbytes and dummy.ko compiled by me has only 2 Kbytes :( > > Thank you in advance > Snowdog
I can't tell how CFLAGS is being used (with the colon???). Anyway, the correct way to build the module (for 2.4.20) is:
Script started on Wed Aug 20 13:09:15 2003 # gcc -c -o dummy.o -DMODULE -D__KERNEL__ -O2 \ -I/usr/src/linux-2.4.20/include dummy.c You have new mail in /var/spool/mail/root
# insmod dummy.o # lsmod Module Size Used by dummy 1052 0 (unused) vximsg 3784 0 (autoclean) vxidrvr 1548 0 (autoclean) st 29592 0 (autoclean) (unused) nfs 47848 0 (autoclean) lockd 37244 0 (autoclean) [nfs] sunrpc 63228 0 (autoclean) [nfs lockd] ipchains 41400 7 3c59x 28224 1 (autoclean) nls_cp437 4376 4 (autoclean) isofs 17232 0 (unused) loop 8632 0 sr_mod 11964 0 (unused) cdrom 27936 0 [sr_mod] BusLogic 35768 7 sd_mod 10184 14 scsi_mod 54572 4 [st sr_mod BusLogic sd_mod] # ifconfig dummy0 1.2.3.4 # ifconfig dummy0 Link encap:Ethernet HWaddr 00:00:00:00:00:00 inet addr:1.2.3.4 Bcast:1.255.255.255 Mask:255.0.0.0 UP BROADCAST RUNNING NOARP MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0
eth0 Link encap:Ethernet HWaddr 00:50:DA:19:7A:7D inet addr:10.100.2.224 Bcast:10.255.255.255 Mask:255.0.0.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:3959973 errors:0 dropped:0 overruns:0 frame:0 TX packets:442389 errors:0 dropped:0 overruns:0 carrier:0 collisions:22249 txqueuelen:100 Interrupt:10 Base address:0xb800
eth0:1 Link encap:Ethernet HWaddr 00:50:DA:19:7A:7D inet addr:10.106.100.167 Bcast:10.255.255.255 Mask:255.0.0.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 Interrupt:10 Base address:0xb800
lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:7722 errors:0 dropped:0 overruns:0 frame:0 TX packets:7722 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0
You have new mail in /var/spool/mail/root # rmmod dummy # exit exit
Script done on Wed Aug 20 13:11:53 2003
...and it works.
Cheers, Dick Johnson Penguin : Linux version 2.4.20 on an i686 machine (797.90 BogoMips). Note 96.31% of all statistics are fiction.
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