Is a recent arm cross compiler available?

[William Cohen]

Hi all,

I have an Efika MX smartbook running the Fedora 13 images on http://ausil.us/smartbook/. I
would like to build kernels using a cross compiler as described on
http://fedoraproject.org/wiki/Architectures/ARM/CrossToolchain because the workstation is
much faster than the 800MHz arm in the smartbook. However, the cross compiler suggested
(http://mirrorlist.fedora-arm.wantstofly.org/?repo=cross&arch=x86_64) is relative old
(April 2008) and does not understand the the "-mcpu=cortex-a8" option required
to build the newer kernel. Is there a newer cross compiler packages somewhere?

-Will

[Dennis Gilmore]

On Thursday, July 14, 2011 09:15:19 AM William Cohen wrote:
>  Hi all,
>  
>  I have an Efika MX smartbook running the Fedora 13 images on
>  http://ausil.us/smartbook/. I would like to build kernels using a cross
>  compiler as described on
>  http://fedoraproject.org/wiki/Architectures/ARM/CrossToolchain because the
>  workstation is much faster than the 800MHz arm in the smartbook. However,
>  the cross compiler suggested
>  (http://mirrorlist.fedora-arm.wantstofly.org/?repo=cross&arch=x86_64) is
>  relative old (April 2008) and does not understand the the
>  "-mcpu=cortex-a8" option required to build the newer kernel. Is there a
>  newer cross compiler packages somewhere? 
What kernel are you trying to build?  there is a slightly newer kernel 
available that fully supports the efika but nothing newer than a 2.6.31 based 
kernel. 

Dennis

[itamar]

On Thu, Jul 14, 2011 at 11:15 AM, William Cohen <wcohen(a)redhat.com&gt; wrote:
>  Hi all,
>
>  I have an Efika MX smartbook running the Fedora 13 images on http://ausil.us/smartbook/.
> I would like to build kernels using a cross compiler as described on
> http://fedoraproject.org/wiki/Architectures/ARM/CrossToolchain because the workstation is
> much faster than the 800MHz arm in the smartbook. However, the cross compiler suggested
> (http://mirrorlist.fedora-arm.wantstofly.org/?repo=cross&arch=x86_64) is relative old
> (April 2008) and does not understand the the "-mcpu=cortex-a8" option required
> to build the newer kernel. Is there a newer cross compiler packages somewhere?
>
>  -Will 

we must create a git repo in somewhere and write a spec file for
smartbook kernel, so we can use arm buildservers to build the kernel.

gitourius may be a good place, we can create a clone of the repo with
a spec file.



------------

Itamar Reis Peixoto
msn, google talk: itamar(a)ispbrasil.com.br
[phone] (FIXO SP)
[phone] (TIM)
[phone] (OI)
[phone] (FIXO MG)

[William Cohen]

On 07/14/2011 10:20 AM, Dennis Gilmore wrote:
>  On Thursday, July 14, 2011 09:15:19 AM William Cohen wrote:
> > Hi all,
> >
> > I have an Efika MX smartbook running the Fedora 13 images on
> > http://ausil.us/smartbook/. I would like to build kernels using a cross
> > compiler as described on
> > http://fedoraproject.org/wiki/Architectures/ARM/CrossToolchain because the
> > workstation is much faster than the 800MHz arm in the smartbook. However,
> > the cross compiler suggested
> > (http://mirrorlist.fedora-arm.wantstofly.org/?repo=cross&arch=x86_64) is
> > relative old (April 2008) and does not understand the the
> > "-mcpu=cortex-a8" option required to build the newer kernel. Is there a
> > newer cross compiler packages somewhere?
>  
>  What kernel are you trying to build?  there is a slightly newer kernel 
>  available that fully supports the efika but nothing newer than a 2.6.31 based 
>  kernel. 
>  
>  Dennis 
Hi Dennis,

I am trying to build a kernel from git://gitorious.org/efikamx/linux-kernel.git. The
"newer" might have been misleading; the main reason I am doing this is because I
am working with systemtap that needs some addition build kernel tree and debuginfo to
build instrumentation modules, like what is described in
http://omappedia.org/wiki/Systemtap .

If was possible to make this an rpm like the omap one mentioned in
http://fedoraproject.org/wiki/Architectures/Fedora_ARM_Kernels, that would be great.

-Will

[DJ Delorie]

>  Is there a newer cross compiler packages somewhere? 
If you don't mind building it yourself, see my bootstrap.git repo at:

  http://djdelorie.fedorapeople.org/

The stage1 script can be invoked as "./stage1 binutils; ./stage1
gcc-host" to just get the raw compiler (no libraries).

Or add "exit 0" around line 265 and just "./stage1" and you also get
glibc and a kernel :-)

[William Cohen]

On 07/14/2011 10:52 AM, DJ Delorie wrote:
> > Is there a newer cross compiler packages somewhere?
>  
>  If you don't mind building it yourself, see my bootstrap.git repo at:
>  
>    http://djdelorie.fedorapeople.org/
>  
>  The stage1 script can be invoked as "./stage1 binutils; ./stage1
>  gcc-host" to just get the raw compiler (no libraries).
>  
>  Or add "exit 0" around line 265 and just "./stage1" and you also get
>  glibc and a kernel :-) 

Hi DJ,

Thanks, this is what I am looking for. I now have the cross compiler working.

-Will

[William Cohen]

On 07/14/2011 10:52 AM, DJ Delorie wrote:
> > Is there a newer cross compiler packages somewhere?
>  
>  If you don't mind building it yourself, see my bootstrap.git repo at:
>  
>    http://djdelorie.fedorapeople.org/
>  
>  The stage1 script can be invoked as "./stage1 binutils; ./stage1
>  gcc-host" to just get the raw compiler (no libraries). 
I got some errors when building the kernel:
 
armv7hl-redhat-linux-gnueabi-ld: cannot find libgcc.a: No such file or directory

Looks like also need to do

./stage1 gcc-libgcc

Just went through the list in stage1:

	go kernel-headers
	go binutils
	go gcc-host
	go glibc-headers
	go gcc-libgcc
	go glibc

Looks like I have a kernel built.

Now time to figure out how to install it on a sd card. :)

-Will

[Dan Horák]

William Cohen píše v Čt 14. 07. 2011 v 10:15 -0400: 
>  Hi all,
>  
>  I have an Efika MX smartbook running the Fedora 13 images on
>  http://ausil.us/smartbook/. I would like to build kernels using a
>  cross compiler as described on
>  http://fedoraproject.org/wiki/Architectures/ARM/CrossToolchain because
>  the workstation is much faster than the 800MHz arm in the smartbook.
>  However, the cross compiler suggested
>  (http://mirrorlist.fedora-arm.wantstofly.org/?repo=cross&arch=x86_64)
>  is relative old (April 2008) and does not understand the the
>  "-mcpu=cortex-a8" option required to build the newer kernel. Is there
>  a newer cross compiler packages somewhere? 
if I see correctly then your question was answered and problem resolved,
so just for completeness - John Linville created an updated
cross-compiler some time ago -
http://linville.fedorapeople.org/armv5tel/


Dan