Using ndisgen to create loadable module w/ broadcom on Compaq R3000z

[Kelly Black]

On 7/20/05, Jung-uk Kim <jkim at niksun.com> wrote:
> On Wednesday 20 July 2005 09:17 am, Kelly Black wrote:
> > Hello,
> >
> > I have a compaq R300z (okay, I'm sorry already!)  running
> > freebsd-amd64 current. I recently tried to use ndisulator for the
> > built in broadcom wireless and used the 64 bit windows drivers to
> > try to generate a loadable module for the wireless device. I have
> > had some trouble generating the loadable module, though. I last
> > updated world and the kernel on Monday.
> >
> > I've tried searching the freebsd-amd64 and freebsd-current lists,
> > and I've tried to search using google. So far I can't find anything
> > to help. Has anyone managed to get this beast working?  Any help
> > would be appreciated. I will paste an overview of what I've tried
> > below:
> >
> > Here is the device info:
> > root at localhost# pciconf -lvvv
> > none3 at pci2:2:0: class=0x028000 card=0x12f4103c chip=0x432014e4
> > rev=0x03 hdr=0x00 vendor   = 'Broadcom Corporation'
> >     device   = 'BCM4306 802.11b/g Wireless LAN Controller'
> >
> > Copies of the driver files that I am using can be found at
> > http://blackk.union.edu/~black/freebsd/BCMWL564.SYS
> > http://blackk.union.edu/~black/freebsd/netbc564.inf.ascii
> > This is a 64 bit driver, and the inf file was converted to ascii
> > using iconv.
> >
> > Here is the message I get when I use ndisgen:
> > Compiling stub... done.
> > Linking loadable kernel module... /usr/bin/ld: windrv_stub.o:
> > relocation R_X86_64_32S can not be used when making a shared
> > object; recompile with -fPIC windrv_stub.o: could not read symbols:
> > Bad value linking failed. Exiting.
> >
> > I read through the ndisgen script to try to figure out what it was
> > doing. I then did this (I added -fPIC):
> >
> > /usr/bin/cc -D_KERNEL -DDRV_DATA_START=BCMWL564_SYS_drv_data_start
> > -DDRV_NAME=BC MWL564_SYS -DDRV_DATA_END=BCMWL564_SYS_drv_data_end
> > -I. /usr/share/misc/windrv_stub.c -data -symbolic  -c -o
> > windrv_stub.o -fPIC
> >
> > /usr/bin/ld -Bshareable -d -warn-common -o BCMWL564_SYS.ko
> > windrv_stub.o windrv.o
> >
> > /usr/bin/ld -r -d -warn-common -o BCMWL564_SYS.o windrv_stub.o
> > windrv.o
> >
> > (The files windrv_stub.o and others were created when ndisgen
> > called ndiscvt so I just left them alone.)
> >
> > When I do this the file compiles and links with no error messages.
> > It creates a file called BCMWL564_SYS.ko. When I try to load the
> > file using kldload I get these messages:
> >
> > kldload: can't load /tmp/broadcom/BCMWL564_SYS.ko: Exec format
> > error
> >
> > and from the console window:
> >
> > kldload: Unsupported file type
> > kldload: unexpected relocation type 7
> > link_elf: symbol windrv_load undefined
> >
> > Any ideas?
> 
> Try the attached patch.  I have been using this for months without a
> problem. ;-)  In fact, I sent it to Bill but he didn't reply.
> 
> Cheers,
> 
> Jung-uk Kim
> 
> > Sincerely,
> > Kel
> 
> 
> 

Dear Jung-uk Kim,

I tried to apply the diff using "patch" but it had trouble. I applied
the patch by hand, and it now works. Thank you!  I can see ndis0 and
connect using dhclient. Did I say "thank you" yet?

By the way, I just got back from a business trip and finally got to
test your patches for the pccard issues. I borrowed a wireless card,
and it worked great. Of course, now that I've applied your fix for
ndis I no longer need your patch for the pccard! :-)

Thank you again!!!

Sincerely,
Kel


-- 
_______________________________________________________
Kelly Black                     Phone: (518) 388-8727
Department of Mathematics       FAX:   (603) 388-6005 
Union College                   e-mail: kelly.black at union.edu
Schenectady NY 12308 (USA)      WWW: http://blackk.union.edu/~black