cross-compilers

cross-compilers

[Alex Chiang]

Hi Andrew,

I've been using your cross-compilers here:

	http://userweb.kernel.org/~akpm/cross-compilers/

for a long time now, but they're starting to suffer from a bit of
neglect.

For example, the ia64 bundle, which used gcc 3.4.5 is now finally
too old to build 2.6.30-rc1, because of a gcc bug related to
labels.

Some of the newer bundles which use gcc 4.1.0 don't work because
of a check in:

	include/linux/compiler-gcc4.h

So my question is, do you still use those tools hosted on
kernel.org or do you have a new solution these days?

If you have a new solution, I'd like to hear it, because I found
those cross-compilers pretty useful, as I'm sure others did.

I spent most of yesterday fiddling about and managed to build an
x86_64 host, ia64 target, gcc 4.2.3, glibc 2.3.6 bundle, and it
all seems to work.

Is this something you're interested in? I could send you my
tarball (and slowly work on some of the other archs).

If so, what were the crosstool build options you used? I'm
specifically wondering about:

	- should I am for lowest common denominator host or are
	  you ok with x86_64 host
	
	- did you statically link the toolchain? or is it
	  dynamically linked?

Thanks.

/ac

Re: cross-compilers

[Robin Holt]

Don't know if this answers your problem, but I use the tools from
emdebian and they do not suffer from the problems you list below.

Good Luck,
Robin

On Tue, Apr 07, 2009 at 06:39:21PM -0600, Alex Chiang wrote:
> Hi Andrew,
> 
> I've been using your cross-compilers here:
> 
> 	http://userweb.kernel.org/~akpm/cross-compilers/
> 
> for a long time now, but they're starting to suffer from a bit of
> neglect.
> 
> For example, the ia64 bundle, which used gcc 3.4.5 is now finally
> too old to build 2.6.30-rc1, because of a gcc bug related to
> labels.
> 
> Some of the newer bundles which use gcc 4.1.0 don't work because
> of a check in:
> 
> 	include/linux/compiler-gcc4.h
> 
> So my question is, do you still use those tools hosted on
> kernel.org or do you have a new solution these days?
> 
> If you have a new solution, I'd like to hear it, because I found
> those cross-compilers pretty useful, as I'm sure others did.
> 
> I spent most of yesterday fiddling about and managed to build an
> x86_64 host, ia64 target, gcc 4.2.3, glibc 2.3.6 bundle, and it
> all seems to work.
> 
> Is this something you're interested in? I could send you my
> tarball (and slowly work on some of the other archs).
> 
> If so, what were the crosstool build options you used? I'm
> specifically wondering about:
> 
> 	- should I am for lowest common denominator host or are
> 	  you ok with x86_64 host
> 	
> 	- did you statically link the toolchain? or is it
> 	  dynamically linked?
> 
> Thanks.
> 
> /ac
> 
> --
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> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html

Re: cross-compilers

[Alex Chiang]

* Robin Holt <holt@sgi.com>:
> Don't know if this answers your problem, but I use the tools from
> emdebian and they do not suffer from the problems you list below.

Wow, this seems _much_ simpler. Once you get the toolchain
installed, all you have to do is set ARCH and CROSS_COMPILE
appropriately?

I guess the question remains for Andrew. Since I pretty much did
all the work needed to update his cross-compiler repo, is there
still value in it?

Or shall we just recommend emdebian to everyone? :)

Thanks.

/ac

Re: cross-compilers

[Pekka Enberg]

Hi Alex,

On Wed, Apr 8, 2009 at 8:46 AM, Alex Chiang <achiang@hp.com> wrote:
> I guess the question remains for Andrew. Since I pretty much did
> all the work needed to update his cross-compiler repo, is there
> still value in it?

I don't know about Andrew, but Vegard might be interested:

http://www.kernel.org/pub/tools/crosstool/

Re: cross-compilers

[Andrew Morton]

On Tue, 7 Apr 2009 23:46:12 -0600 Alex Chiang <achiang@hp.com> wrote:

> * Robin Holt <holt@sgi.com>:
> > Don't know if this answers your problem, but I use the tools from
> > emdebian and they do not suffer from the problems you list below.
> 
> Wow, this seems _much_ simpler. Once you get the toolchain
> installed, all you have to do is set ARCH and CROSS_COMPILE
> appropriately?
> 
> I guess the question remains for Andrew. Since I pretty much did
> all the work needed to update his cross-compiler repo, is there
> still value in it?

We would benefit very much from having someone who actually maintains a
suite of cross-compilers for kernel developers.

Yes, the stuff I put together is very old and at the time crosstool was
horridly hard to use.  Hardly any combinations of anything actually
worked - what you see there is about 5% of the toolchains I had to
build.  Apparently is has become better.

> Or shall we just recommend emdebian to everyone? :)

That sounds suspiciously like "thou shalt use debian".  I was so
traumatised by dselect ten years ago that I don't think I could afford
the therapy bills.

Re: cross-compilers

[Peter Chubb]

>>>>> "Andrew" == Andrew Morton <akpm@linux-foundation.org> writes:

Alex Chiang said:
>> Or shall we just recommend emdebian to everyone? :)

Andrew> That sounds suspiciously like "thou shalt use debian".  I was
Andrew> so traumatised by dselect ten years ago that I don't think I
Andrew> could afford the therapy bills.

It's *much* better now :-) Or you could use Ubuntu.

--
Dr Peter Chubb  http://www.gelato.unsw.edu.au  peterc AT gelato.unsw.edu.au
http://www.ertos.nicta.com.au           ERTOS within National ICT Australia
A university is a non-profit organisation only in the sense that it
spends everything it gets  ... Luca Turin.

Re: cross-compilers

[Matthew Wilcox]

On Tue, Apr 07, 2009 at 10:54:57PM -0700, Andrew Morton wrote:
> > Or shall we just recommend emdebian to everyone? :)
> 
> That sounds suspiciously like "thou shalt use debian".  I was so
> traumatised by dselect ten years ago that I don't think I could afford
> the therapy bills.

I think it's been about ten years since I last used dselect ;-)

-- 
Matthew Wilcox				Intel Open Source Technology Centre
"Bill, look, we understand that you're interested in selling us this
operating system, but compare it to ours.  We can't possibly take such
a retrograde step."

Re: cross-compilers

[Lennart Sorensen]

On Tue, Apr 07, 2009 at 10:54:57PM -0700, Andrew Morton wrote:
> That sounds suspiciously like "thou shalt use debian".  I was so
> traumatised by dselect ten years ago that I don't think I could afford
> the therapy bills.

I hate dselect.  I like debian though.

Fortunately dselect is history.  It had one of the worst interfaces I
have ever dealt with.

So I have no problem with everyone using debian.  I am sure the non
debian users do have a problem with that.

-- 
Len Sorensen

Re: cross-compilers

[Xavier Bestel]

On Tue, 2009-04-07 at 22:54 -0700, Andrew Morton wrote:
> > Or shall we just recommend emdebian to everyone? :)
> 
> That sounds suspiciously like "thou shalt use debian".  I was so
> traumatised by dselect ten years ago that I don't think I could afford
> the therapy bills.

Sure. But try aptitude for a change.

	Xav

Re: cross-compilers

[Alex Chiang]

* Andrew Morton <akpm@linux-foundation.org>:
> On Tue, 7 Apr 2009 23:46:12 -0600 Alex Chiang <achiang@hp.com> wrote:
> 
> > * Robin Holt <holt@sgi.com>:
> > > Don't know if this answers your problem, but I use the tools from
> > > emdebian and they do not suffer from the problems you list below.
> > 
> > Wow, this seems _much_ simpler. Once you get the toolchain
> > installed, all you have to do is set ARCH and CROSS_COMPILE
> > appropriately?
> > 
> > I guess the question remains for Andrew. Since I pretty much did
> > all the work needed to update his cross-compiler repo, is there
> > still value in it?
> 
> We would benefit very much from having someone who actually maintains a
> suite of cross-compilers for kernel developers.
 
Ok, I'll work with Vegard on this.

Thanks.

/ac

Re: cross-compilers

[Randy Dunlap]

Alex Chiang wrote:
> * Andrew Morton <akpm@linux-foundation.org>:
>> On Tue, 7 Apr 2009 23:46:12 -0600 Alex Chiang <achiang@hp.com> wrote:
>>
>>> * Robin Holt <holt@sgi.com>:
>>>> Don't know if this answers your problem, but I use the tools from
>>>> emdebian and they do not suffer from the problems you list below.
>>> Wow, this seems _much_ simpler. Once you get the toolchain
>>> installed, all you have to do is set ARCH and CROSS_COMPILE
>>> appropriately?
>>>
>>> I guess the question remains for Andrew. Since I pretty much did
>>> all the work needed to update his cross-compiler repo, is there
>>> still value in it?
>> We would benefit very much from having someone who actually maintains a
>> suite of cross-compilers for kernel developers.
>  
> Ok, I'll work with Vegard on this.
> 
> Thanks.

Thank you.  We should be able to have these tools
without using any specific $distro.

-- 
~Randy

Re: cross-compilers

[Jan-Benedict Glaw]

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On Wed, 2009-04-08 11:33:32 -0600, Alex Chiang <achiang@hp.com> wrote:
> * Andrew Morton <akpm@linux-foundation.org>:
> > On Tue, 7 Apr 2009 23:46:12 -0600 Alex Chiang <achiang@hp.com> wrote:
> > > * Robin Holt <holt@sgi.com>:
> > > > Don't know if this answers your problem, but I use the tools from
> > > > emdebian and they do not suffer from the problems you list below.
> > > 
> > > Wow, this seems _much_ simpler. Once you get the toolchain
> > > installed, all you have to do is set ARCH and CROSS_COMPILE
> > > appropriately?
> > > 
> > > I guess the question remains for Andrew. Since I pretty much did
> > > all the work needed to update his cross-compiler repo, is there
> > > still value in it?
> > 
> > We would benefit very much from having someone who actually maintains a
> > suite of cross-compilers for kernel developers.
>  
> Ok, I'll work with Vegard on this.

Is anybody building GCC trunk for the targets on a daily basis? I do
build vax-linux (kernel-only) cross compilers quite often and the
build script could probably also handle other targets.

MfG, JBG

-- 
      Jan-Benedict Glaw      jbglaw@lug-owl.de              +49-172-7608481
  Signature of:                        Lauf nicht vor Deinem Glück davon:
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Re: cross-compilers

[Segher Boessenkool]

> Is anybody building GCC trunk for the targets on a daily basis?

Not daily yet, but often anyway.  Also binutils and kernel mainline.

Scripts: <http://git.infradead.org/users/segher/buildall.git>

Edit "config" for your local paths etc.
Run  ./build [--kernel] <arch> [<some-defconfig>]  to build a toolchain
and a kernel, or only the kernel if --kernel is given.  Run  ./buildall
to build a toolchain+kernel for all archs.


Segher

Re: cross-compilers

[Rob Landley]

On Wednesday 08 April 2009 00:54:57 Andrew Morton wrote:
> On Tue, 7 Apr 2009 23:46:12 -0600 Alex Chiang <achiang@hp.com> wrote:
> > * Robin Holt <holt@sgi.com>:
> > > Don't know if this answers your problem, but I use the tools from
> > > emdebian and they do not suffer from the problems you list below.
> >
> > Wow, this seems _much_ simpler. Once you get the toolchain
> > installed, all you have to do is set ARCH and CROSS_COMPILE
> > appropriately?
> >
> > I guess the question remains for Andrew. Since I pretty much did
> > all the work needed to update his cross-compiler repo, is there
> > still value in it?
>
> We would benefit very much from having someone who actually maintains a
> suite of cross-compilers for kernel developers.

I already maintain cross compilers for my own use and the uClibc.org guys, 
along with little root filesystems and system images bootable under qemu:

  http://uclibc.org/downloads/binaries

We're about to start doing nightly builds based on uClibc snapshots, I could 
easily get our server to do similar nightly builds based on the git version 
kernel headers and upload 'em to 
http://kernel.org/pub/linux/kernel/people/landley/ if there's any interest...

Rob
-- 
GPLv3 is to GPLv2 what Attack of the Clones is to The Empire Strikes Back.

Re: cross-compilers

[Tony Breeds]

On Tue, Apr 07, 2009 at 10:54:57PM -0700, Andrew Morton wrote:

> We would benefit very much from having someone who actually maintains a
> suite of cross-compilers for kernel developers.

I build wont say maintain many of the cross compilers used for linux-next.  I
can place them somehere.  They're kernel only as I don't build libc.

I can build compilers for running on intel (32-bit) and powerpc (32-bit).  If
there is a need for other hosted compilers and people can give me access to an
appropriate host/VM I'll build them too.

Yours Tony

Re: cross-compilers

[Andrew Morton]

On Thu, 9 Apr 2009 10:33:08 +1000 Tony Breeds <tony@bakeyournoodle.com> wrote:

> On Tue, Apr 07, 2009 at 10:54:57PM -0700, Andrew Morton wrote:
> 
> > We would benefit very much from having someone who actually maintains a
> > suite of cross-compilers for kernel developers.
> 
> I build wont say maintain many of the cross compilers used for linux-next.  I
> can place them somehere.

Please do.

Several people have made suggestions but I don't think I've yet seen
anything which is download-and-go.  Many of them appear to be ways of
tricking people into installing distributions which include dselect,
but I'm awake to their little games.

Re: cross-compilers

[Alex Chiang]

* Andrew Morton <akpm@linux-foundation.org>:
> On Tony Breeds <tony@bakeyournoodle.com> wrote:
> 
> > On Tue, Apr 07, 2009 at 10:54:57PM -0700, Andrew Morton
> > wrote:
> > 
> > > We would benefit very much from having someone who actually
> > > maintains a suite of cross-compilers for kernel developers.
> > 
> > I build wont say maintain many of the cross compilers used
> > for linux-next.  I can place them somehere.
> 
> Please do.
> 
> Several people have made suggestions but I don't think I've yet
> seen anything which is download-and-go.

This is what I plan on doing with Vegard. I've already sent him
mail offline.

Thanks.

Re: cross-compilers

[Helge Deller]

Alex Chiang wrote:
>> Several people have made suggestions but I don't think I've yet
>> seen anything which is download-and-go.
> 
> This is what I plan on doing with Vegard. I've already sent him
> mail offline.

Any chance to add cross compilers for linux-parisc and linux-parisc64 as well?

Helge

Re: cross-compilers

[Alex Chiang]

* Helge Deller <deller@gmx.de>:
> Alex Chiang wrote:
> >> Several people have made suggestions but I don't think I've
> >> yet seen anything which is download-and-go.
> > 
> > This is what I plan on doing with Vegard. I've already sent
> > him mail offline.
> 
> Any chance to add cross compilers for linux-parisc and
> linux-parisc64 as well?

I can try.

I'm about to leave on a two-week holiday so it'll be a while.

Thanks.

/ac

Re: cross-compilers

[Tony Breeds]

On Wed, Apr 08, 2009 at 05:44:43PM -0700, Andrew Morton wrote:

> Please do.

linux-next is built on powerpc so I needed to rebuild many of the compilers for
intel.

While I was there I "updated to 4.3.3 and a 4.4.0 snapshot (20090216).

I've placed (well am placing):

x86_64 host, gcc 4.3.3, binutils 2.19.1:
alpha-linux
arm-linux
avr-linux
cris-linux
hppa64-linux
hppa-linux
i386-linux
m68k-linux
mipsel-linux
mips-linux
powerpc-linux
s390x-linux
sparc-linux
xtensa-linux

x86_64 host, gcc 4.4.0-20090216, binutils 2.19.1:
alpha-linux
arm-linux
avr-linux
cris-linux
hppa64-linux
i386-linux
m68k-linux
powerpc-linux
s390x-linux
sparc-linux

I haven't succeeded in builting a ia64 compiler, but I'll keep trying.

The i386,powerpc and sparc compilers are biarch and seem to build the 32/64
kernels appropriately.

I'm building i386 hosted compiiler ATM and I'll uplaod them when done.

Looking at the 4.3.3 compilers, asside from ia64 what arches are missing?

> Several people have made suggestions but I don't think I've yet seen
> anything which is download-and-go.  Many of them appear to be ways of
> tricking people into installing distributions which include dselect,
> but I'm awake to their little games.

These should all be relocatable, in that you can wack them anywhere (/opt/cross
for me) and set your CROSS_COMPILE var and go.

For what it's worth these compilers were built with something derrived from
the buildall scripts by Segher (http://git.infradead.org/users/segher/buildall.git)

Thanks Segher!

Yours Tony

Re: cross-compilers

[Jan-Benedict Glaw]

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On Fri, 2009-04-10 07:52:07 +1000, Tony Breeds <tony@bakeyournoodle.com> wrote:
> On Wed, Apr 08, 2009 at 05:44:43PM -0700, Andrew Morton wrote:
> 
> > Please do.
> 
> linux-next is built on powerpc so I needed to rebuild many of the compilers for
> intel.

I've started a build-bot like script for binutils + GCC from CVS/GIT.
If it builds through, I'll start uploading i686 hosted compilers
later on today.

MfG, JBG

-- 
      Jan-Benedict Glaw      jbglaw@lug-owl.de              +49-172-7608481
Signature of:                   ...und wenn Du denkst, es geht nicht mehr,
the second  :                          kommt irgendwo ein Lichtlein her.

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Re: cross-compilers

[Jan-Benedict Glaw]

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On Fri, 2009-04-10 01:47:50 +0200, Jan-Benedict Glaw <jbglaw@lug-owl.de> wrote:
> On Fri, 2009-04-10 07:52:07 +1000, Tony Breeds <tony@bakeyournoodle.com> wrote:
> > On Wed, Apr 08, 2009 at 05:44:43PM -0700, Andrew Morton wrote:
> > 
> > > Please do.
> > 
> > linux-next is built on powerpc so I needed to rebuild many of the compilers for
> > intel.
> 
> I've started a build-bot like script for binutils + GCC from CVS/GIT.
> If it builds through, I'll start uploading i686 hosted compilers
> later on today.

So... I've now build trunk kernel-only cross-compilers (hosted on
i686) for these targets:

	alpha-linux.tar.bz2
	am33_2.0-linux.tar.bz2
	arm-linux.tar.bz2
	avr-linux.tar.bz2
	bfin-uclinux.tar.bz2
	cris-linux.tar.bz2
	frv-linux.tar.bz2
	h8300-elf.tar.bz2
	hppa64-linux.tar.bz2
	hppa-linux.tar.bz2
	i386-linux.tar.bz2
	ia64-linux.tar.bz2
	m32r-linux.tar.bz2
	m68k-linux.tar.bz2
	mips64-linux.tar.bz2
	mips-linux.tar.bz2
	powerpc64-linux.tar.bz2
	powerpc-linux.tar.bz2
	s390-linux.tar.bz2
	sh3-linux.tar.bz2
	sh64-linux.tar.bz2
	sparc64-linux.tar.bz2
	sparc-linux.tar.bz2
	v850e-linux.tar.bz2
	vax-linux.tar.bz2
	x86_64-linux.tar.bz2
	xtensa-linux.tar.bz2

They seem to build reliably, I'd easily build them once a day. If
anybody is interested, I'll put them somewhere on lug-owl.de, or if
you wish, on kernel.org .

Comments?

MfG, JBG

-- 
      Jan-Benedict Glaw      jbglaw@lug-owl.de              +49-172-7608481
Signature of:          GDB has a 'break' feature; why doesn't it have 'fix' too?
the second  :

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Re: cross-compilers

[Mike Frysinger]

On Fri, Apr 10, 2009 at 06:12, Jan-Benedict Glaw wrote:
> On Fri, 2009-04-10 01:47:50 +0200, Jan-Benedict Glaw wrote:
>> I've started a build-bot like script for binutils + GCC from CVS/GIT.
>> If it builds through, I'll start uploading i686 hosted compilers
>> later on today.
>
> So... I've now build trunk kernel-only cross-compilers (hosted on
> i686) for these targets:
>
>        bfin-uclinux.tar.bz2

we already host up-to-date Blackfin compilers on the Blackfin website:
http://blackfin.uclinux.org/gf/project/toolchain/frs/

and we build for a variety of platforms ... atm that is x86, x86_64,
ia64, and ppc

we also provide for simple distro integration:
 - Gentoo has ebuilds in-tree
 - deb based distros can use "deb
http://download.analog.com/27516/distros/debian stable main"
 - rpms are available at the link above (fedora/suse/etc...)
 - tarballs are available at the link above (everyone else)

not sure it can get much easier than that for installing the Blackfin
toolchain ;)
-mike

Re: cross-compilers

[Sam Ravnborg]

On Fri, Apr 10, 2009 at 06:19:21AM -0400, Mike Frysinger wrote:
> On Fri, Apr 10, 2009 at 06:12, Jan-Benedict Glaw wrote:
> > On Fri, 2009-04-10 01:47:50 +0200, Jan-Benedict Glaw wrote:
> >> I've started a build-bot like script for binutils + GCC from CVS/GIT.
> >> If it builds through, I'll start uploading i686 hosted compilers
> >> later on today.
> >
> > So... I've now build trunk kernel-only cross-compilers (hosted on
> > i686) for these targets:
> >
> >        bfin-uclinux.tar.bz2
> 
> we already host up-to-date Blackfin compilers on the Blackfin website:
> http://blackfin.uclinux.org/gf/project/toolchain/frs/
> 
> and we build for a variety of platforms ... atm that is x86, x86_64,
> ia64, and ppc
> 
> we also provide for simple distro integration:
>  - Gentoo has ebuilds in-tree
>  - deb based distros can use "deb
> http://download.analog.com/27516/distros/debian stable main"
>  - rpms are available at the link above (fedora/suse/etc...)
>  - tarballs are available at the link above (everyone else)
> 
> not sure it can get much easier than that for installing the Blackfin
> toolchain ;)
It can...
I'm after a one-stop place where we can locate cross compilers
for all architectures that Linux supports so it is a much simpler
task to actaully try to build our changes for as many architectures
as we supports.

And please host them on kernel.org - preferably as an update
of Vegards pages.

	Sam

Re: cross-compilers

[Mike Frysinger]

On Fri, Apr 10, 2009 at 06:49, Sam Ravnborg wrote:
> On Fri, Apr 10, 2009 at 06:19:21AM -0400, Mike Frysinger wrote:
>> On Fri, Apr 10, 2009 at 06:12, Jan-Benedict Glaw wrote:
>> > On Fri, 2009-04-10 01:47:50 +0200, Jan-Benedict Glaw wrote:
>> >> I've started a build-bot like script for binutils + GCC from CVS/GIT.
>> >> If it builds through, I'll start uploading i686 hosted compilers
>> >> later on today.
>> >
>> > So... I've now build trunk kernel-only cross-compilers (hosted on
>> > i686) for these targets:
>> >
>> >        bfin-uclinux.tar.bz2
>>
>> we already host up-to-date Blackfin compilers on the Blackfin website:
>> http://blackfin.uclinux.org/gf/project/toolchain/frs/
>>
>> and we build for a variety of platforms ... atm that is x86, x86_64,
>> ia64, and ppc
>>
>> we also provide for simple distro integration:
>>  - Gentoo has ebuilds in-tree
>>  - deb based distros can use "deb
>> http://download.analog.com/27516/distros/debian stable main"
>>  - rpms are available at the link above (fedora/suse/etc...)
>>  - tarballs are available at the link above (everyone else)
>>
>> not sure it can get much easier than that for installing the Blackfin
>> toolchain ;)
>
> It can...
> I'm after a one-stop place where we can locate cross compilers
> for all architectures that Linux supports so it is a much simpler
> task to actaully try to build our changes for as many architectures
> as we supports.
>
> And please host them on kernel.org - preferably as an update
> of Vegards pages.

whoever is maintaining the one location should simply mirror our
tarballs (grabbing the 1 uclinux from the Debian link would be
easiest) ... unlike the random ones people are compiling and posting,
the binaries we post have gone through extensive testing -- both in
terms of included testsuites (gcc/binutils/etc...) as well as actually
building/running the kernel and userspace
-mike

Re: cross-compilers

[Jan-Benedict Glaw]

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On Fri, 2009-04-10 12:49:13 +0200, Sam Ravnborg <sam@ravnborg.org> wrote:
> On Fri, Apr 10, 2009 at 06:19:21AM -0400, Mike Frysinger wrote:

> I'm after a one-stop place where we can locate cross compilers
> for all architectures that Linux supports so it is a much simpler
> task to actaully try to build our changes for as many architectures
> as we supports.
> 
> And please host them on kernel.org - preferably as an update
> of Vegards pages.

Known-working compilers, or the current latest-and-greatest for
testing? I can provide the HEAD compilers easily.

MfG, JBG

-- 
      Jan-Benedict Glaw      jbglaw@lug-owl.de              +49-172-7608481
  Signature of:                          Zensur im Internet? Nein danke!
  the second  :

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Re: cross-compilers

[Al Viro]

On Fri, Apr 10, 2009 at 05:59:16PM +0200, Jan-Benedict Glaw wrote:
> On Fri, 2009-04-10 12:49:13 +0200, Sam Ravnborg <sam@ravnborg.org> wrote:
> > On Fri, Apr 10, 2009 at 06:19:21AM -0400, Mike Frysinger wrote:
> 
> > I'm after a one-stop place where we can locate cross compilers
> > for all architectures that Linux supports so it is a much simpler
> > task to actaully try to build our changes for as many architectures
> > as we supports.
> > 
> > And please host them on kernel.org - preferably as an update
> > of Vegards pages.
> 
> Known-working compilers, or the current latest-and-greatest for
> testing? I can provide the HEAD compilers easily.

There's /pub/scm/linux/kernel/git/viro/toolchain.git/ on kernel.org.
Not updated for a while and it's Fedora-based set.

Re: cross-compilers

[Jan-Benedict Glaw]

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On Fri, 2009-04-10 12:49:13 +0200, Sam Ravnborg <sam@ravnborg.org> wrote:
> It can...
> I'm after a one-stop place where we can locate cross compilers
> for all architectures that Linux supports so it is a much simpler
> task to actaully try to build our changes for as many architectures
> as we supports.

As long as nobody objects, I'll put snapshot compilers once a week to

	http://www.kernel.org/pub/linux/kernel/people/jbglaw/cross_compilers

The first round is uploading right now, it should show up soon.

MfG, JBG

-- 
      Jan-Benedict Glaw      jbglaw@lug-owl.de              +49-172-7608481
Signature of:  The course of history shows that as a government grows, liberty
the second  : decreases."  (Thomas Jefferson)

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Re: cross-compilers

[Sam Ravnborg]

On Fri, Apr 10, 2009 at 07:52:07AM +1000, Tony Breeds wrote:
> On Wed, Apr 08, 2009 at 05:44:43PM -0700, Andrew Morton wrote:
> 
> > Please do.
> 
> linux-next is built on powerpc so I needed to rebuild many of the compilers for
> intel.
> 
> While I was there I "updated to 4.3.3 and a 4.4.0 snapshot (20090216).
> 
> I've placed (well am placing):

Where can I find them?

	Sam

Re: cross-compilers

[Tony Breeds]

On Fri, Apr 10, 2009 at 07:45:35AM +0200, Sam Ravnborg wrote:
> On Fri, Apr 10, 2009 at 07:52:07AM +1000, Tony Breeds wrote:
> > On Wed, Apr 08, 2009 at 05:44:43PM -0700, Andrew Morton wrote:
> > 
> > > Please do.
> > 
> > linux-next is built on powerpc so I needed to rebuild many of the compilers for
> > intel.
> > 
> > While I was there I "updated to 4.3.3 and a 4.4.0 snapshot (20090216).
> > 
> > I've placed (well am placing):
> 
> Where can I find them?

D'oh  Sorry http://bakeyournoodle.com/cross/

Yours Tony

Re: cross-compilers

[Geert Uytterhoeven]

On Thu, Apr 9, 2009 at 02:33, Tony Breeds <tony@bakeyournoodle.com> wrote:
> On Tue, Apr 07, 2009 at 10:54:57PM -0700, Andrew Morton wrote:
>> We would benefit very much from having someone who actually maintains a
>> suite of cross-compilers for kernel developers.
>
> I build wont say maintain many of the cross compilers used for linux-next.  I
> can place them somehere.  They're kernel only as I don't build libc.

Any chance m68k-unknown-linux-gnu-gcc 4.0.2 can be updated, so we get proper
m68k allmodconfig coverage again? Recently we had some allmodconfig breakage
in mainline (not limited to m68k though) for stuff that had been in
-next, but was
never tried with m68k allmodconfig due to the ICE, while I could reproduce it.

Mine is gcc version 4.1.2 20061115 (prerelease) (Debian 4.1.1-21), so
far no ICEs
when not trying randconfig (strange that randconfig triggers those).

Gr{oetje,eeting}s,

						Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
							    -- Linus Torvalds

Re: cross-compilers

[Robin Holt]

On Tue, Apr 07, 2009 at 11:46:12PM -0600, Alex Chiang wrote:
> * Robin Holt <holt@sgi.com>:
> > Don't know if this answers your problem, but I use the tools from
> > emdebian and they do not suffer from the problems you list below.
> 
> Wow, this seems _much_ simpler. Once you get the toolchain
> installed, all you have to do is set ARCH and CROSS_COMPILE
> appropriately?

That is all I do.

Robin

Re: cross-compilers

[Andi Kleen]

Alex Chiang <achiang@hp.com> writes:

> * Robin Holt <holt@sgi.com>:
>> Don't know if this answers your problem, but I use the tools from
>> emdebian and they do not suffer from the problems you list below.
>
> Wow, this seems _much_ simpler. Once you get the toolchain
> installed, all you have to do is set ARCH and CROSS_COMPILE
> appropriately?
>
> I guess the question remains for Andrew. Since I pretty much did
> all the work needed to update his cross-compiler repo, is there
> still value in it?
>
> Or shall we just recommend emdebian to everyone? :)

SUSE also has cross-gcc-* rpms. Typically for icecream, but they're
relatively easy to extract into native format.

-Andi

-- 
ak@linux.intel.com -- Speaking for myself only.

Re: cross-compilers

[Alex Buell]

On Tue, 7 Apr 2009 18:39:21 -0600, I waved a wand and this message
magically appears in front of Alex Chiang:

> I've been using your cross-compilers here:
> 
> 	http://userweb.kernel.org/~akpm/cross-compilers/
> 
> for a long time now, but they're starting to suffer from a bit of
> neglect.

Why bother? 

You can use 'crossdev' to build your own cross-compilers instead. They
can build either stable or unstable toolchains for your target
architectures. 
-- 
http://www.munted.org.uk

Fearsome grindings.