Re: Math module not compiling

Dear Doug,

I tried doing your method of building Newlib locally but that itself is not
building. its giving following error

/usr/local/src/newlib/src/newlib/libc/include/_ansi.h:130:19: error:
missing binary operator before token "("

and

" Makefile:383: recipe for target 'argz_add.lo' failed
make[3]: *** [argz_add.lo] Error 1" "

and whole bunch of other stuff. in short something big is wrong..

Will have try different things to compile. but as an alternative I tried
installing default NewLib of ubuntu, which also didnt work.

By the way my installation configuration is as follows:

Ubuntu 14.10 32-bit
Kernel: 3.16.0
RTAI: 4.1

Hardware:
Processor: i3 quad-core
RAM: 4 GB
Motherboard: Gigabyte

Just in case if you require..
Rathin


On Mon, Jan 11, 2016 at 11:38 PM, Rathin Dholakia <[email protected]>
wrote:

> Dear Doug,
>
> Thank you VERY MUCH for your help.. I did came across your name but not
> the same thread.!
>
> I tried both 4.1 and 5.0test1 as well as vulcano.. got the same error...
> but I will try your method and let you know..!
>
> Thanks a lot for tip..
>
> Regards,
> Rathin
>
> On Mon, Jan 11, 2016 at 11:13 PM, Doug Renton <[email protected]> wrote:
>
>> Hi Rathin,
>>
>> I had a math issue earlier in the summer and there were some tricks. Have
>> you read through these two threads?
>>
>> https://mail.rtai.org/pipermail/rtai/2015-September/026912.html
>>
>> https://mail.rtai.org/pipermail/rtai/2014-October/026540.html
>>
>> I've yet to try 5.1 though. So I'm not sure things are still 100% the
>> same.
>>  Doug
>>
>>
>>
>>
>>
>>
>> On 01/11/2016 10:06 AM, Rathin Dholakia wrote:
>>
>>> Dear All,
>>>
>>> That problem of math module not getting compiled got solved. I spent few
>>> hours and finally figured that since Ubuntu 12.04 they have changed the
>>> library directory structure. so the "libm.a" location  has been changed
>>> to "arch specific directory" and hence the make was not able to find
>>> it...!!
>>>
>>> But now I am faced with another challenge that when I try to insert
>>> rtai_math.ko it shows "unknown symbol error."
>>>
>>> My dmesg shows:
>>>
>>> [  276.359092] rtai_math: Unknown symbol __get_cpu_features (err 0)
>>> [  276.359104] rtai_math: Unknown symbol gammaf_r (err 0)
>>> [  276.359112] rtai_math: Unknown symbol errno (err 0)
>>> [  276.359120] rtai_math: Unknown symbol __fpclassifyd (err 0)
>>> [  276.359137] rtai_math: Unknown symbol strtod (err 0)
>>> [  276.359146] rtai_math: Unknown symbol infinity (err 0)
>>> [  276.359152] rtai_math: Unknown symbol gamma_r (err 0)
>>> [  276.359162] rtai_math: Unknown symbol strtof (err 0)
>>> [  276.359170] rtai_math: Unknown symbol infinityf (err 0)
>>> [  276.359177] rtai_math: Unknown symbol _GLOBAL_OFFSET_TABLE_ (err 0)
>>> [  276.359185] rtai_math: Unknown symbol _dl_hwcap (err 0)
>>> [  276.359186] rtai_math: no symbol version for strlen
>>> [  276.359187] rtai_math: Unknown symbol strlen (err -22)
>>> [  276.359195] rtai_math: Unknown symbol __signbitd (err 0)
>>>
>>>
>>> Can anyone suggest what might be going wrong?
>>>
>>> I am updating this thread so that any newbie like me if facing the same
>>> issue , can find it.
>>>
>>>
>>> Thank you,
>>>
>>> Sincerely,
>>> Rathin
>>>
>>>
>>> On Mon, Jan 11, 2016 at 12:16 PM, Rathin Dholakia
>>> <[email protected] <mailto:[email protected]>> wrote:
>>>
>>>     Dear Members,
>>>
>>>     First of all I am new to RTAI domain and have to admit I am blown by
>>>     the efforts of community. My sincerest gratitude for such an amazing
>>>     development..!
>>>
>>>     Now to my query, I am trying to implement a RTAI system with
>>>     RTAI-4.1 on Kernel 3.16.0 using x86 patch. Basically I am trying to
>>>     port a old RTAI 3.6 to new rtai-4.1.
>>>
>>>     Everything went fine, I ran test and latencies are also good. But I
>>>     am not able to build the Math module, as soon as I turn "math
>>>     option" ON in "other features" RTAI fails to compile.
>>>
>>>     Can someone guide, How to work around it? I saw the archived post of
>>>     "Kernel math error" & missing exportlib.h but I couldn't figure out
>>>     what to do.
>>>
>>>
>>>     Sincerely,
>>>     Rathin
>>>
>>>
>>>
>>>
>>> --
>>> Rathin A. Dholakia
>>> "Dont GO through life, GROW through life"
>>>
>>>
>>> _______________________________________________
>>> Rtai mailing list
>>> [email protected]
>>> https://mail.rtai.org/cgi-bin/mailman/listinfo/rtai
>>>
>>> _______________________________________________
>> Rtai mailing list
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>>
>
>
>
> --
> Rathin A. Dholakia
> "Dont GO through life, GROW through life"
>



-- 
Rathin A. Dholakia
"Dont GO through life, GROW through life"

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