Bug#358559: madwidi-source: Fails to build kernel module on mipsel

[Kel Modderman]

Aurelien Jarno wrote:
> On Fri, Mar 24, 2006 at 05:59:14PM +0000, Thiemo Seufer wrote:
>   
>> On Fri, Mar 24, 2006 at 06:41:32PM +0100, Aurelien Jarno wrote:
>> [snip]
>>     
>>>>> Hmm, you select the hal.o file accordingly?  Won't mips1-le-elf work
>>>>> on both R1 and R2?  Checking for R1/R2 doesn't seem ideal to me if it
>>>>> can be avoided.
>>>>>
>>>>> Thiemo, any comment?
>>>>>           
>>>> At least for 32bit kernels this looks like a viable option, if the hal
>>>> layer is sufficiently simple (i.e. no dependency to kernel headers).
>>>>
>>>> Same for 64bit kernels and MIPS-III.
>>>>         
>>> So in short we could use mipsisa32-{be,le}-elf on all machines but the 
>>> one that have CONFIG_CPU_MIPS32_R1 or CONFIG_CPU_MIPS32_R2 set to one. 
>>> Am I right?
>>>       
>> Erm, depends on what "mipsisa32" selects in that case.
>> The compatibility tree is:
>>
>>                 / -> MIPS-III -> MIPS-IV -> MIPS64 -> MIPS64R2  # 64bit
>>                 |                             ^          ^
>> 		|                             |          |
>> MIPS-I -> MIPS-II ------------------------> MIPS32 -> MIPS32R2  # 32bit
>>
>> so you need MIPS-I for 32bit Kernels and MIPS-III for 64bit kernels.
>> For the current compilers in Debian this can be selected via
>> -march=mips1 and -march=mips3 respectively.
>>
>>     
>
> Ok, please find attached a new patch that uses mips1-{be,le}-elf for all
> kernels. Tested on R1 and R4400 CPU.
>
> As for 64-bit kernels, the MIPS-III binary does not work, as it is a
> 32-bit file:
>
>   LD [M]  /usr/src/modules/madwifi/ath_hal/ath_hal.o
> ld: /usr/src/modules/madwifi/ath_hal/hal.o: ABI is incompatible with that of the selected emulation
> ld: failed to merge target specific data of file /usr/src/modules/madwifi/ath_hal/hal.o
> ld: BFD 2.16.91 20060118 Debian GNU/Linux assertion fail ../../bfd/elflink.c:7915
> ld: BFD 2.16.91 20060118 Debian GNU/Linux assertion fail ../../bfd/elflink.c:7915
> ld: BFD 2.16.91 20060118 Debian GNU/Linux assertion fail ../../bfd/elflink.c:7915
> ld: BFD 2.16.91 20060118 Debian GNU/Linux assertion fail ../../bfd/elflink.c:7915
> ld: Attempt to do relocatable link with elf32-tradbigmips input and elf64-tradbigmips output
> ld: final link failed: File in wrong format
> make[3]: *** [/usr/src/modules/madwifi/ath_hal/ath_hal.o] Error 1
> make[2]: *** [_module_/usr/src/modules/madwifi/ath_hal] Error 2
> make[2]: Leaving directory `/usr/src/linux-headers-2.6.16-rc6-r4k-ip22'
> make[1]: *** [all] Error 2
> make[1]: Leaving directory `/usr/src/modules/madwifi/ath_hal'
> make: *** [all] Erreur 1
> make: quittant le répertoire « /usr/src/modules/madwifi »
> root at nyquist:/usr/src/modules/madwifi# file /usr/src/modules/madwifi/ath_hal/*o
> /usr/src/modules/madwifi/ath_hal/ah_osdep.o: ELF 64-bit MSB relocatable, MIPS, MIPS-III version 1 (SYSV), not stripped
> /usr/src/modules/madwifi/ath_hal/hal.o:      ELF 32-bit MSB relocatable, MIPS, MIPS-III version 1 (SYSV), not stripped
>
>   

Hi guys,

Patch looks good, I'll get it in the madwifi(-old) package soon. 
However, for madiwfi(-ng), I hope we can fix this upstream. Can I 
contact you off-list to discuss this?

I am not qualified to comment on anything mips related, however, so I 
need a little assistance.

Thanks, Kel.