* [ptxdist] Detect if x86 target is 32 or 64bit?
@ 2012-01-04 14:27 Alexander Stein
2012-01-04 16:59 ` Michael Olbrich
0 siblings, 1 reply; 9+ messages in thread
From: Alexander Stein @ 2012-01-04 14:27 UTC (permalink / raw)
To: ptxdist
Hello,
how can I detect if a x86 target is 32 or 64bit? I'm working on a package rule
for gnu-efi and elilo which need to know if it should generate ia32, x86_64
(or ia64) binaries.
I just know about PTXCONF_ARCH_X86 but this does not show what I want. There
is also PTXCONF_KERNEL_ARCH_X86_64 for 64bit but this needs a linux kernel
configured. Any other ideas?
Best regards,
Alexander
--
Dipl.-Inf. Alexander Stein
SYS TEC electronic GmbH
August-Bebel-Str. 29
D-07973 Greiz
Tel: +49-3661-6279-0, Fax: +49-3661-6279-99
eMail: Alexander.Stein@systec-electronic.com
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^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: [ptxdist] Detect if x86 target is 32 or 64bit?
2012-01-04 14:27 [ptxdist] Detect if x86 target is 32 or 64bit? Alexander Stein
@ 2012-01-04 16:59 ` Michael Olbrich
2012-01-31 8:21 ` Alexander Stein
0 siblings, 1 reply; 9+ messages in thread
From: Michael Olbrich @ 2012-01-04 16:59 UTC (permalink / raw)
To: ptxdist
Hi,
On Wed, Jan 04, 2012 at 03:27:46PM +0100, Alexander Stein wrote:
> how can I detect if a x86 target is 32 or 64bit? I'm working on a package rule
> for gnu-efi and elilo which need to know if it should generate ia32, x86_64
> (or ia64) binaries.
> I just know about PTXCONF_ARCH_X86 but this does not show what I want. There
> is also PTXCONF_KERNEL_ARCH_X86_64 for 64bit but this needs a linux kernel
> configured. Any other ideas?
This is not yet supported. You'll need to add ARCH_X86_64 and ARCH_IA64 to
platforms/architecture.in and set the correct defaults for HAS_HARDFLOAT
etc.
Send patches :-)
Michael
--
Pengutronix e.K. | |
Industrial Linux Solutions | http://www.pengutronix.de/ |
Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 |
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^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: [ptxdist] Detect if x86 target is 32 or 64bit?
2012-01-04 16:59 ` Michael Olbrich
@ 2012-01-31 8:21 ` Alexander Stein
2012-01-31 14:12 ` Michael Olbrich
0 siblings, 1 reply; 9+ messages in thread
From: Alexander Stein @ 2012-01-31 8:21 UTC (permalink / raw)
To: ptxdist; +Cc: Michael Olbrich
On Wednesday 04 January 2012 17:59:57 Michael Olbrich wrote:
> Hi,
>
> On Wed, Jan 04, 2012 at 03:27:46PM +0100, Alexander Stein wrote:
> > how can I detect if a x86 target is 32 or 64bit? I'm working on a package
rule
> > for gnu-efi and elilo which need to know if it should generate ia32,
x86_64
> > (or ia64) binaries.
> > I just know about PTXCONF_ARCH_X86 but this does not show what I want.
There
> > is also PTXCONF_KERNEL_ARCH_X86_64 for 64bit but this needs a linux kernel
> > configured. Any other ideas?
>
> This is not yet supported. You'll need to add ARCH_X86_64 and ARCH_IA64 to
> platforms/architecture.in and set the correct defaults for HAS_HARDFLOAT
> etc.
> Send patches :-)
I doubt it's the best way to just add ARCH_X86_64 (and maybe ARCH_IA64). A lot
of rules files use "ifdef PTXCONF_ARCH_X86". So this has to be reworked to be
useable in X86_64, as most cases don't make a difference to 32 or 64 Bit.
Maybe it's better, to add a 64Bit entry in the optimization. Thoughts?
Regards,
Alexander
--
Dipl.-Inf. Alexander Stein
SYS TEC electronic GmbH
August-Bebel-Str. 29
D-07973 Greiz
Tel: +49-3661-6279-0, Fax: +49-3661-6279-99
eMail: Alexander.Stein@systec-electronic.com
Internet: http://www.systec-electronic.com
Managing Director: Dipl.-Phys. Siegmar Schmidt
Commercial registry: Amtsgericht Jena, HRB 205563
--
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^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: [ptxdist] Detect if x86 target is 32 or 64bit?
2012-01-31 8:21 ` Alexander Stein
@ 2012-01-31 14:12 ` Michael Olbrich
2012-02-01 12:49 ` Alexander Stein
0 siblings, 1 reply; 9+ messages in thread
From: Michael Olbrich @ 2012-01-31 14:12 UTC (permalink / raw)
To: ptxdist
On Tue, Jan 31, 2012 at 09:21:30AM +0100, Alexander Stein wrote:
> On Wednesday 04 January 2012 17:59:57 Michael Olbrich wrote:
> > On Wed, Jan 04, 2012 at 03:27:46PM +0100, Alexander Stein wrote:
> > > how can I detect if a x86 target is 32 or 64bit? I'm working on a package
> rule
> > > for gnu-efi and elilo which need to know if it should generate ia32,
> x86_64
> > > (or ia64) binaries.
> > > I just know about PTXCONF_ARCH_X86 but this does not show what I want.
> There
> > > is also PTXCONF_KERNEL_ARCH_X86_64 for 64bit but this needs a linux kernel
> > > configured. Any other ideas?
> >
> > This is not yet supported. You'll need to add ARCH_X86_64 and ARCH_IA64 to
> > platforms/architecture.in and set the correct defaults for HAS_HARDFLOAT
> > etc.
> > Send patches :-)
>
> I doubt it's the best way to just add ARCH_X86_64 (and maybe ARCH_IA64). A lot
> of rules files use "ifdef PTXCONF_ARCH_X86". So this has to be reworked to be
> useable in X86_64, as most cases don't make a difference to 32 or 64 Bit.
> Maybe it's better, to add a 64Bit entry in the optimization. Thoughts?
I have no idea which way will be easier to implement. But I don't think
adding to the optimization is the best. There will be places where you need
to separate 32 vs 64 bit (e.g. SIZEOF_LONG_DOUBLE).
So I guess you should start with a (ARCH_X86_32|ARCH_X86_64) choice and
check if any "ifdef PTXCONF_ARCH_X86" need to be changed.
If there are few/no uses of ARCH_X86 left then we can rename ARCH_X86_32 to
ARCH_X86.
Michael
--
Pengutronix e.K. | |
Industrial Linux Solutions | http://www.pengutronix.de/ |
Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 |
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^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: [ptxdist] Detect if x86 target is 32 or 64bit?
2012-01-31 14:12 ` Michael Olbrich
@ 2012-02-01 12:49 ` Alexander Stein
2012-02-06 20:08 ` Michael Olbrich
2012-02-15 6:47 ` Andreas Bießmann
0 siblings, 2 replies; 9+ messages in thread
From: Alexander Stein @ 2012-02-01 12:49 UTC (permalink / raw)
To: ptxdist; +Cc: Michael Olbrich
On Tuesday 31 January 2012 15:12:08 Michael Olbrich wrote:
> On Tue, Jan 31, 2012 at 09:21:30AM +0100, Alexander Stein wrote:
> > On Wednesday 04 January 2012 17:59:57 Michael Olbrich wrote:
> > > On Wed, Jan 04, 2012 at 03:27:46PM +0100, Alexander Stein wrote:
> > > > how can I detect if a x86 target is 32 or 64bit? I'm working on a package
> > rule
> > > > for gnu-efi and elilo which need to know if it should generate ia32,
> > x86_64
> > > > (or ia64) binaries.
> > > > I just know about PTXCONF_ARCH_X86 but this does not show what I want.
> > There
> > > > is also PTXCONF_KERNEL_ARCH_X86_64 for 64bit but this needs a linux kernel
> > > > configured. Any other ideas?
> > >
> > > This is not yet supported. You'll need to add ARCH_X86_64 and ARCH_IA64 to
> > > platforms/architecture.in and set the correct defaults for HAS_HARDFLOAT
> > > etc.
> > > Send patches :-)
> >
> > I doubt it's the best way to just add ARCH_X86_64 (and maybe ARCH_IA64). A lot
> > of rules files use "ifdef PTXCONF_ARCH_X86". So this has to be reworked to be
> > useable in X86_64, as most cases don't make a difference to 32 or 64 Bit.
> > Maybe it's better, to add a 64Bit entry in the optimization. Thoughts?
>
> I have no idea which way will be easier to implement. But I don't think
> adding to the optimization is the best. There will be places where you need
> to separate 32 vs 64 bit (e.g. SIZEOF_LONG_DOUBLE).
> So I guess you should start with a (ARCH_X86_32|ARCH_X86_64) choice and
> check if any "ifdef PTXCONF_ARCH_X86" need to be changed.
> If there are few/no uses of ARCH_X86 left then we can rename ARCH_X86_32 to
> ARCH_X86.
Another problem prio to this is a 64bit toolchain in ptxdist. Up to now there is no OSELAStoolchain for x86_64.
So I tried to use my host toolchain, but ptxdist cannot detect the sysroot in ptxd_init_sysroot_toolchain.
At least my host toolchain has no --sysroot configure option set. I will assume an application is for 32bit, at the moment.
Best regards,
Alexander
--
Dipl.-Inf. Alexander Stein
SYS TEC electronic GmbH
August-Bebel-Str. 29
D-07973 Greiz
Tel: +49-3661-6279-0, Fax: +49-3661-6279-99
eMail: Alexander.Stein@systec-electronic.com
Internet: http://www.systec-electronic.com
Managing Director: Dipl.-Phys. Siegmar Schmidt
Commercial registry: Amtsgericht Jena, HRB 205563
--
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^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: [ptxdist] Detect if x86 target is 32 or 64bit?
2012-02-01 12:49 ` Alexander Stein
@ 2012-02-06 20:08 ` Michael Olbrich
2012-02-15 6:47 ` Andreas Bießmann
1 sibling, 0 replies; 9+ messages in thread
From: Michael Olbrich @ 2012-02-06 20:08 UTC (permalink / raw)
To: ptxdist
On Wed, Feb 01, 2012 at 01:49:22PM +0100, Alexander Stein wrote:
> On Tuesday 31 January 2012 15:12:08 Michael Olbrich wrote:
> > On Tue, Jan 31, 2012 at 09:21:30AM +0100, Alexander Stein wrote:
> > > On Wednesday 04 January 2012 17:59:57 Michael Olbrich wrote:
> > > > On Wed, Jan 04, 2012 at 03:27:46PM +0100, Alexander Stein wrote:
> > > > > how can I detect if a x86 target is 32 or 64bit? I'm working on a package
> > > rule
> > > > > for gnu-efi and elilo which need to know if it should generate ia32,
> > > x86_64
> > > > > (or ia64) binaries.
> > > > > I just know about PTXCONF_ARCH_X86 but this does not show what I want.
> > > There
> > > > > is also PTXCONF_KERNEL_ARCH_X86_64 for 64bit but this needs a linux kernel
> > > > > configured. Any other ideas?
> > > >
> > > > This is not yet supported. You'll need to add ARCH_X86_64 and ARCH_IA64 to
> > > > platforms/architecture.in and set the correct defaults for HAS_HARDFLOAT
> > > > etc.
> > > > Send patches :-)
> > >
> > > I doubt it's the best way to just add ARCH_X86_64 (and maybe ARCH_IA64). A lot
> > > of rules files use "ifdef PTXCONF_ARCH_X86". So this has to be reworked to be
> > > useable in X86_64, as most cases don't make a difference to 32 or 64 Bit.
> > > Maybe it's better, to add a 64Bit entry in the optimization. Thoughts?
> >
> > I have no idea which way will be easier to implement. But I don't think
> > adding to the optimization is the best. There will be places where you need
> > to separate 32 vs 64 bit (e.g. SIZEOF_LONG_DOUBLE).
> > So I guess you should start with a (ARCH_X86_32|ARCH_X86_64) choice and
> > check if any "ifdef PTXCONF_ARCH_X86" need to be changed.
> > If there are few/no uses of ARCH_X86 left then we can rename ARCH_X86_32 to
> > ARCH_X86.
>
> Another problem prio to this is a 64bit toolchain in ptxdist. Up to now there is no OSELAStoolchain for x86_64.
Send patches :-)
> So I tried to use my host toolchain, but ptxdist cannot detect the sysroot in ptxd_init_sysroot_toolchain.
> At least my host toolchain has no --sysroot configure option set. I will assume an application is for 32bit, at the moment.
ptxdist only works with a real cross-toolchain. Otherwise You'll end up
with /usr/{include,lib} in the search paths and that won't work.
Michael
--
Pengutronix e.K. | |
Industrial Linux Solutions | http://www.pengutronix.de/ |
Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 |
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^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: [ptxdist] Detect if x86 target is 32 or 64bit?
2012-02-01 12:49 ` Alexander Stein
2012-02-06 20:08 ` Michael Olbrich
@ 2012-02-15 6:47 ` Andreas Bießmann
2012-02-15 7:30 ` Alexander Stein
1 sibling, 1 reply; 9+ messages in thread
From: Andreas Bießmann @ 2012-02-15 6:47 UTC (permalink / raw)
To: ptxdist
Dear Alexander Stein,
On 01.02.12 13:49, Alexander Stein wrote:
> On Tuesday 31 January 2012 15:12:08 Michael Olbrich wrote:
>> On Tue, Jan 31, 2012 at 09:21:30AM +0100, Alexander Stein wrote:
>>> On Wednesday 04 January 2012 17:59:57 Michael Olbrich wrote:
>>>> On Wed, Jan 04, 2012 at 03:27:46PM +0100, Alexander Stein wrote:
>>>>> how can I detect if a x86 target is 32 or 64bit? I'm working on a package
>>> rule
>>>>> for gnu-efi and elilo which need to know if it should generate ia32,
>>> x86_64
>>>>> (or ia64) binaries.
>>>>> I just know about PTXCONF_ARCH_X86 but this does not show what I want.
>>> There
>>>>> is also PTXCONF_KERNEL_ARCH_X86_64 for 64bit but this needs a linux kernel
>>>>> configured. Any other ideas?
>>>>
>>>> This is not yet supported. You'll need to add ARCH_X86_64 and ARCH_IA64 to
>>>> platforms/architecture.in and set the correct defaults for HAS_HARDFLOAT
>>>> etc.
>>>> Send patches :-)
>>>
>>> I doubt it's the best way to just add ARCH_X86_64 (and maybe ARCH_IA64). A lot
>>> of rules files use "ifdef PTXCONF_ARCH_X86". So this has to be reworked to be
>>> useable in X86_64, as most cases don't make a difference to 32 or 64 Bit.
>>> Maybe it's better, to add a 64Bit entry in the optimization. Thoughts?
>>
>> I have no idea which way will be easier to implement. But I don't think
>> adding to the optimization is the best. There will be places where you need
>> to separate 32 vs 64 bit (e.g. SIZEOF_LONG_DOUBLE).
>> So I guess you should start with a (ARCH_X86_32|ARCH_X86_64) choice and
>> check if any "ifdef PTXCONF_ARCH_X86" need to be changed.
>> If there are few/no uses of ARCH_X86 left then we can rename ARCH_X86_32 to
>> ARCH_X86.
is there any conclusion to this discussion?
I startet to build a x86_64 rootfs (on top of i586-qemu-bsp) and failed
to build sylinux due to some wrong decisions in syslinux.make (another
discussion ..).
I started defining ARCH_X86_64 as optimization of ARCH_X86. Alexander,
are you building x86_64 stuff too ore did you only ask cause of the
ability to build gnu-efi for ia32, x86_32 and ia64?
> Another problem prio to this is a 64bit toolchain in ptxdist. Up to now there is no OSELAStoolchain for x86_64.
Can you please test my OSELAS.Toolchain x86_64 patches?
> So I tried to use my host toolchain, but ptxdist cannot detect the sysroot in ptxd_init_sysroot_toolchain.
> At least my host toolchain has no --sysroot configure option set. I will assume an application is for 32bit, at the moment.
best regards
Andreas Bießmann
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^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: [ptxdist] Detect if x86 target is 32 or 64bit?
2012-02-15 6:47 ` Andreas Bießmann
@ 2012-02-15 7:30 ` Alexander Stein
2012-02-15 9:08 ` Andreas Bießmann
0 siblings, 1 reply; 9+ messages in thread
From: Alexander Stein @ 2012-02-15 7:30 UTC (permalink / raw)
To: Andreas Bießmann; +Cc: ptxdist
Hello Andreas,
Am Mittwoch, 15. Februar 2012, 07:47:04 schrieb Andreas Bießmann:
> is there any conclusion to this discussion?
> I startet to build a x86_64 rootfs (on top of i586-qemu-bsp) and failed
> to build sylinux due to some wrong decisions in syslinux.make (another
> discussion ..).
> I started defining ARCH_X86_64 as optimization of ARCH_X86. Alexander,
> are you building x86_64 stuff too ore did you only ask cause of the
> ability to build gnu-efi for ia32, x86_32 and ia64?
I didn't work on this topic again. But yes, I asked only for gnu-efi stuff. Until now we are only building 32bit.
> > Another problem prio to this is a 64bit toolchain in ptxdist. Up to now there is no OSELAStoolchain for x86_64.
>
> Can you please test my OSELAS.Toolchain x86_64 patches?
IIRC from other mails, do you need a x86_64 host to use a x86_64 toolchain? Well, I'm running a x86_64 host, so this wouldn't be a problem.
Best regards,
Alexander
--
Dipl.-Inf. Alexander Stein
SYS TEC electronic GmbH
August-Bebel-Str. 29
D-07973 Greiz
Tel: +49-3661-6279-0, Fax: +49-3661-6279-99
eMail: Alexander.Stein@systec-electronic.com
Internet: http://www.systec-electronic.com
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Commercial registry: Amtsgericht Jena, HRB 205563
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^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: [ptxdist] Detect if x86 target is 32 or 64bit?
2012-02-15 7:30 ` Alexander Stein
@ 2012-02-15 9:08 ` Andreas Bießmann
0 siblings, 0 replies; 9+ messages in thread
From: Andreas Bießmann @ 2012-02-15 9:08 UTC (permalink / raw)
To: ptxdist; +Cc: Andreas Bießmann, Klaus.Hachmeister
Hi Alexander,
On 15.02.2012 08:30, Alexander Stein wrote:
> Hello Andreas,
>
> Am Mittwoch, 15. Februar 2012, 07:47:04 schrieb Andreas Bießmann:
>> is there any conclusion to this discussion?
>> I startet to build a x86_64 rootfs (on top of i586-qemu-bsp) and failed
>> to build sylinux due to some wrong decisions in syslinux.make (another
>> discussion ..).
>> I started defining ARCH_X86_64 as optimization of ARCH_X86. Alexander,
>> are you building x86_64 stuff too ore did you only ask cause of the
>> ability to build gnu-efi for ia32, x86_32 and ia64?
>
> I didn't work on this topic again. But yes, I asked only for gnu-efi stuff. Until now we are only building 32bit.
Ok.
>>> Another problem prio to this is a 64bit toolchain in ptxdist. Up to now there is no OSELAStoolchain for x86_64.
>>
>> Can you please test my OSELAS.Toolchain x86_64 patches?
>
> IIRC from other mails, do you need a x86_64 host to use a x86_64 toolchain? Well, I'm running a x86_64 host, so this wouldn't be a problem.
No, that is a misunderstanding here.
You can build the x86_64-unknown-linux-gnu OSELAS.Toolchain on any host
you want (even Mac OS X as I did).
If you have a host that has the same GNU triplet as the target (and that
may be the fact for some users with x86 build host and x86 target
toolchain but not only he x86_64 toolchain) the autotools mechanism will
end up in deciding for native build which means e.g. gcc without
prefixed arch triplet. Therefore one of my patches adds explicit
'--build=' switch to cross-tools configure to fool the autotools
guessing mechanism by providing a non-guessable arch triplet (e.g.
x86_64-host-linux-gnu -> see GNU_HOST in <ptxdist>/rules/pre/Rules.make).
This let the autoconf logic think it has a x86_64-host-linux-gnu build
system building a x86_64-unknown-linux-gnu target toolchain running on a
x86_64-unknown-linux-gnu host system which would be 'cross compiling'.
The resulting tools have the arch triplet prefixed and everything should
be fine.
I hope this is clear now. Feel free to test the OSELAS.Toolchain
patches, would be great to get some feedback.
best regards
Andreas Bießmann
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2012-01-04 14:27 [ptxdist] Detect if x86 target is 32 or 64bit? Alexander Stein
2012-01-04 16:59 ` Michael Olbrich
2012-01-31 8:21 ` Alexander Stein
2012-01-31 14:12 ` Michael Olbrich
2012-02-01 12:49 ` Alexander Stein
2012-02-06 20:08 ` Michael Olbrich
2012-02-15 6:47 ` Andreas Bießmann
2012-02-15 7:30 ` Alexander Stein
2012-02-15 9:08 ` Andreas Bießmann
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