Re: Fwd: RV: Math module not compiling

Hi Rathin,

I've tried your way getting the newlib from CVS (before that I was using
newlib-2.2.0) and it still builds successfully using the configure options
I suggested.

I reckon that newlib uses "libtool", your problems may be related with the
version of libtool you are using...

I am using libtool 2.4.2  (#libtool --version)

regards,

Asier.




On Mon, Jan 18, 2016 at 4:14 PM, Rathin Dholakia <[email protected]>
wrote:

> Dear Asier,
> I tried the configuration that you suggested but it fails. It gives
> following error
>
> Makefile:161: recipe for target 'standards.info' failed
> make[3]: *** [standards.info] Error 1
> make[3]: Leaving directory '/usr/local/src/src/etc'
> Makefile:72: recipe for target 'info' failed
> make[2]: *** [info] Error 1
>
>
> Basically Heres what I did:
>
> 0) cd /usr/src
>
> 1) downloaded the Newlib from
> cvs -z 9 -d :pserver:anoncvs at sourceware.org:/cvs/src co newlib
>
> 2) cd in to src of Newlib
>
> 3) used your configuration that is " sudo ./configure  --disable-shared
> --disable-multilib --with-newlib --host=i386-pc-sysv"
>
> 4) sudo make
>
> 5) Voila - Error recreated..
>
> Can you suggest where I might be going wrong?
>
> I will try Dough methods tonight and see if that works as well..
>
> Sorry for late report, bit hung-up in work & exams..
>
> Sincerely,
> Rathin
>
>
>
> On Wed, Jan 13, 2016 at 7:13 PM, Rathin Dholakia <[email protected]
> > wrote:
>
>> Hi Asier,
>>
>> Thank you very much for input..! I will try out your method before
>> testing out the 64-bit option suggested by Doug.
>>
>> I will test both and get back to you in a day or so.
>>
>> Regards,
>> Rathin
>>
>> On Wed, Jan 13, 2016 at 2:10 PM, Asier <[email protected]> wrote:
>>
>>>
>>> Hi Rathin,
>>>
>>> I have been facing similar issues with a 32 bit Linux lately...
>>>
>>> I am using RTAI 4.1 and Ubuntu 14.04 32 bit and the glibc-libm that
>>> comes with Ubuntu doesn't work. It seems that the i386 glibc-libm from
>>> Ubuntu is not suitable for this new math library support and need and
>>> alternative way like in the x86_64.
>>>
>>> I decided to use newlib and after struggling a little bit with the
>>> building process I ended up building newlib with the following configure
>>> options:
>>>
>>> ./configure  --disable-shared --disable-multilib --with-newlib
>>> --host=i386-pc-sysv
>>>
>>> In order to build RTAI you might need to get the "export_newlib.h" file
>>> from RTAI CVS and copy to your rtai/base/math directory:
>>>
>>> Regards,
>>>
>>> Asier.
>>>
>>>
>>>
>>> De: Rtai [mailto:[email protected]] En nombre de Doug Renton
>>> Enviado el: lunes, 11 de enero de 2016 20:48
>>> Para: Rathin Dholakia
>>> CC: [email protected]
>>> Asunto: Re: [Rtai] Math module not compiling
>>>
>>> Are you using 32 bit Linux?? If so that is a difference, I use 64bit. I
>>> suspect there are serious differences between the two. I would re-install
>>> with 64 bit linux. I use openSUSE, no troubles..
>>>
>>> On 64 bit you need newlib first.
>>> I just followed Jan's directions. I looked at my "notes" and it is cut
>>> and paste from Jan's email
>>>
>>>
>>> **********************************************************
>>> Jan @ cut out address...
>>> Wed Oct 8 15:17:08 CEST 2014
>>>
>>>
>>> We just had this discussion...
>>>
>>> Download the latest RTAI version from CVS or from github:
>>> git clone https://github.com/ShabbyX/RTAI.git
>>>
>>> Read the file
>>> base/math/README.KLIBM
>>>
>>> On a 64bit system you might want to install newlib:
>>>
>>> cd /usr/local/src
>>> mkdir newlib
>>> cd newlib
>>> cvs -z 9 -d :pserver:anoncvs at sourceware.org:/cvs/src login
>>> cvs -z 9 -d :pserver:[email protected]:/cvs/src login
>>> # password: anoncvs
>>> cvs -z 9 -d :pserver:anoncvs at sourceware.org:/cvs/src co newlib
>>> mkdir install
>>> cd src/newlib
>>> ./configure --prefix=/usr/local/src/newlib/install --disable-shared
>>> CFLAGS="-O2 -mcmodel=kernel"
>>> make
>>> make install
>>>
>>> In the rtai menu go to
>>> Base system -> Other features:
>>> Enable "Mathfuns support in kernel"
>>> Nextline should have a "(1)" for NEWLIB
>>> "The installation directory of your chosen libm.a" should be set to
>>> /usr/local/src/newlib/install/lib
>>>
>>> Then make RTAI again.
>>>
>>> This should work.
>>>
>>>
>>>
>>> On 01/11/2016 01:55 PM, Rathin Dholakia wrote:
>>> > 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] <mailto:[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]
>>> >     <mailto:[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]
>>> >
>>> >             <mailto:[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] <mailto:[email protected]>
>>> >             https://mail.rtai.org/cgi-bin/mailman/listinfo/rtai
>>> >
>>> >         _______________________________________________
>>> >         Rtai mailing list
>>> >         [email protected] <mailto:[email protected]>
>>> >         https://mail.rtai.org/cgi-bin/mailman/listinfo/rtai
>>> >
>>> >
>>> >
>>> >
>>> >     --
>>> >     Rathin A. Dholakia
>>> >     "Dont GO through life, GROW through life"
>>> >
>>> >
>>> >
>>> >
>>> > --
>>> > Rathin A. Dholakia
>>> > "Dont GO through life, GROW through life"
>>> _______________________________________________
>>> Rtai mailing list
>>> [email protected]
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>>>
>>>
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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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