Messages in this thread | | | Date | Sun, 9 Apr 2006 22:05:33 -0400 (EDT) | Subject | Re: 2.4.32: unresolved symbol unregister_qdisc | From | "George P Nychis" <> |
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> On Sun, 9 Apr 2006 13:37:25 -0400 (EDT) George P Nychis wrote: > >> Thanks for the help. >> >> Here is the makefile: http://rafb.net/paste/results/auchPH75.html >> >> And here is the full errors I receive: >> http://rafb.net/paste/results/Qplpqw74.html >> >> Greatly appreciate it >> >> - George > > [repeat: please don't top-post] > > I don't know how much I can help you. It's been a long time since I've > built external modules on 2.4.x. > > Problems that I see: - the Makefile does not use the expected 2.4 kernel > build infrastructure; - kernel Makefile uses -nostdinc to prevent use of > userspace headers; - Makefile is trying to include userspace headers > instead of kernel headers, e.g.: In file included from > /usr/include/linux/if_ether.h:107, from /usr/include/linux/netdevice.h:29, > from sch_xcp.c:8: - this specified include directory is only in 2.6.x, > not 2.4.x: -I/lib/modules/`uname -r`/build/include/asm/mach-default > > It's not clear to me how this makefile could work with 2.4.x at all. Is it > supposed to, or that's just what you want to see it do? > > You could try to fix the Makefile based on makefile-changes articles at > lwn.net. E.g.: http://lwn.net/Articles/151784/ > http://lwn.net/Articles/79984/ http://lwn.net/Articles/74767/ > http://lwn.net/Articles/69148/ http://lwn.net/Articles/21823/ > > > >>> On Sat, 8 Apr 2006 19:18:47 -0400 (EDT) George P Nychis wrote: >>> >>>> Yeah, this module is unfortunately not under the GPL, it was made >>>> for research and i am not the author, I was only given the code for >>>> my own research. >>>> >>>> I enabled that support in the kernel, and then tried to recompile >>>> and get tons of errors/warnings... so maybe I am missing something >>>> else to be enabled in the kernel... here are a few examples of >>>> errors: /usr/include/linux/skbuff.h:30:26: net/checksum.h: No such >>>> file or directory /usr/include/asm/irq.h:16:25: irq_vectors.h: No >>>> such file or directory /usr/include/linux/irq.h:72: error: `NR_IRQS' >>>> undeclared here (not in a function) /usr/include/asm/hw_irq.h:28: >>>> error: `NR_IRQ_VECTORS' undeclared here (not in a function) >>>> >>>> I think those are the top most errors, so if i can fix those >>>> hopefully the rest shall vanish! >>> >>> Looks like a Makefile problem then. Can you post the Makefile? >>> Hopefully it is using a Makefile and not just an elaborate gcc command >>> line. >>> >>> [and please don't top-post] >>> >>>> - George >>>> >>>> >>>>> From: "George P Nychis" <gnychis@cmu.edu> Date: Sat, 8 Apr 2006 >>>>> 18:47:34 -0400 (EDT) >>>>> >>>>>> Hey, >>>>>> >>>>>> I have a kernel module that uses unregister_qdisc and >>>>>> register_qdisc, whenever i try to insert the module I get: >>>>>> /lib/modules/2.4.32/kernel/net/sched/sch_xcp.o: >>>>>> /lib/modules/2.4.32/kernel/net/sched/sch_xcp.o: unresolved >>>>>> symbol unregister_qdisc >>>>>> /lib/modules/2.4.32/kernel/net/sched/sch_xcp.o: >>>>>> /lib/modules/2.4.32/kernel/net/sched/sch_xcp.o: unresolved >>>>>> symbol register_qdisc >>>>>> >>>>>> Am i missing some sort of support in the kernel? >>>>> >>>>> Make sure CONFIG_NET_SCHED is enabled and that you compiled your >>>>> module against that kernel. >>>>> >>>>> Where does this sch_xcp come from? It's not in the vanilla >>>>> sources. >>>>> >>>>> Also, please direct networking questions to the >>>>> netdev@vger.kernel.org mailing list which I have added to the >>>>> CC:. > > --- ~Randy > >
By the way, if I add -I/usr/src/linux/include to the compile line, it successfully compiles, however, i am back to the start: lanthanum-ini src-1.0.1 # insmod sch_xcp Using /lib/modules/2.4.32/kernel/net/sched/sch_xcp.o /lib/modules/2.4.32/kernel/net/sched/sch_xcp.o: /lib/modules/2.4.32/kernel/net/sched/sch_xcp.o: unresolved symbol unregister_qdisc /lib/modules/2.4.32/kernel/net/sched/sch_xcp.o: /lib/modules/2.4.32/kernel/net/sched/sch_xcp.o: unresolved symbol register_qdisc
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