[U-Boot] ppc -Os and _restgpr_##_x errors

[U-Boot] ppc -Os and _restgpr_##_x errors

[Mike Frysinger]

am i the only one seeing errors like:
board/esd/cpciiser4/libcpciiser4.o: In function `board_early_init_f':
board/esd/cpciiser4/cpciiser4.c:139: undefined reference to `_restgpr_26_x'

i'm using a gcc-4.5.x toolchain here.  should we import crtsavres.S from Linux 
to fix this ?
-mike
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[U-Boot] ppc -Os and _restgpr_##_x errors

[Wolfgang Denk]

Dear Mike Frysinger,

In message <201111092310.56181.vapier@gentoo.org> you wrote:
>
> am i the only one seeing errors like:
> board/esd/cpciiser4/libcpciiser4.o: In function `board_early_init_f':
> board/esd/cpciiser4/cpciiser4.c:139: undefined reference to `_restgpr_26_x'
>
> i'm using a gcc-4.5.x toolchain here.  should we import crtsavres.S from Linux 
> to fix this ?

No, we should not.  You should switch to a compiler version where this
problem has been fixed.  See second entry at
http://www.denx.de/wiki/U-Boot/GccBugsAndIssues

Best regards,

Wolfgang Denk

-- 
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
He is truly wise who gains wisdom from another's mishap.

[U-Boot] ppc -Os and _restgpr_##_x errors

[Mike Frysinger]

On Thursday 10 November 2011 00:32:45 Wolfgang Denk wrote:
> Mike Frysinger wrote:
> > am i the only one seeing errors like:
> > board/esd/cpciiser4/libcpciiser4.o: In function `board_early_init_f':
> > board/esd/cpciiser4/cpciiser4.c:139: undefined reference to
> > `_restgpr_26_x'
> > 
> > i'm using a gcc-4.5.x toolchain here.  should we import crtsavres.S from
> > Linux to fix this ?
> 
> No, we should not.  You should switch to a compiler version where this
> problem has been fixed.  See second entry at
> http://www.denx.de/wiki/U-Boot/GccBugsAndIssues

thanks ... upgrading to gcc-4.6.2 from gcc-4.5.3 fixed things.  when i read the 
gcc thread, it sounded like it wasn't optional behavior, but i guess they 
changed that with gcc-4.6.x.
-mike
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[U-Boot] ppc -Os and _restgpr_##_x errors

[McClintock Matthew-B29882]

On Wed, Nov 9, 2011 at 10:10 PM, Mike Frysinger <vapier@gentoo.org> wrote:
> am i the only one seeing errors like:
> board/esd/cpciiser4/libcpciiser4.o: In function `board_early_init_f':
> board/esd/cpciiser4/cpciiser4.c:139: undefined reference to `_restgpr_26_x'
>
> i'm using a gcc-4.5.x toolchain here. ?should we import crtsavres.S from Linux
> to fix this ?

Some projects fix this manually. For example kexec adds this:

https://github.com/horms/kexec-tools/blob/master/purgatory/arch/ppc/misc.S

Not that this is a good approach....

-M

[U-Boot] ppc -Os and _restgpr_##_x errors

[Scott Wood]

On 11/10/2011 01:47 PM, McClintock Matthew-B29882 wrote:
> On Wed, Nov 9, 2011 at 10:10 PM, Mike Frysinger <vapier@gentoo.org> wrote:
>> am i the only one seeing errors like:
>> board/esd/cpciiser4/libcpciiser4.o: In function `board_early_init_f':
>> board/esd/cpciiser4/cpciiser4.c:139: undefined reference to `_restgpr_26_x'
>>
>> i'm using a gcc-4.5.x toolchain here.  should we import crtsavres.S from Linux
>> to fix this ?
> 
> Some projects fix this manually. For example kexec adds this:
> 
> https://github.com/horms/kexec-tools/blob/master/purgatory/arch/ppc/misc.S
> 
> Not that this is a good approach....

Shouldn't libgcc provide this?

-Scott

[U-Boot] ppc -Os and _restgpr_##_x errors

[McClintock Matthew-B29882]

On Fri, Nov 11, 2011 at 2:12 PM, Scott Wood <scottwood@freescale.com> wrote:
> Shouldn't libgcc provide this?

It's not being provided by certain toolchains...

-M

[U-Boot] ppc -Os and _restgpr_##_x errors

[Marek Vasut]

> On Fri, Nov 11, 2011 at 2:12 PM, Scott Wood <scottwood@freescale.com> wrote:
> > Shouldn't libgcc provide this?
> 
> It's not being provided by certain toolchains...
> 
> -M

Well there is a reason why one should stick to ELDK ;-)

> _______________________________________________
> U-Boot mailing list
> U-Boot at lists.denx.de
> http://lists.denx.de/mailman/listinfo/u-boot

[U-Boot] ppc -Os and _restgpr_##_x errors

[McClintock Matthew-B29882]

On Mon, Nov 14, 2011 at 3:42 PM, Marek Vasut <marek.vasut@gmail.com> wrote:
> Well there is a reason why one should stick to ELDK ;-)

It depends on what version of GCC you want to use as well.

-M

[U-Boot] ppc -Os and _restgpr_##_x errors

[Wolfgang Denk]

Dear Scott Wood,

In message <4EBD81A2.7000402@freescale.com> you wrote:
> 
> >> i'm using a gcc-4.5.x toolchain here.  should we import crtsavres.S from Linux
> >> to fix this ?
...
> > Not that this is a good approach....
> 
> Shouldn't libgcc provide this?

If GCC generates such instruction sequences, it definitely should
provide support for these in libgcc.  Even better if it doesn't
generate such code at all.

Best regards,

Wolfgang Denk

-- 
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
A woman should have compassion.
	-- Kirk, "Catspaw", stardate 3018.2

[U-Boot] ppc -Os and _restgpr_##_x errors

[Felix Radensky]

Hi Wolfgang,

On 11/10/2011 05:45 PM, Felix Radensky wrote:
> No, we should not.  You should switch to a compiler version where this
> problem has been fixed.  See second entry at
> http://www.denx.de/wiki/U-Boot/GccBugsAndIssues
>

It is not clear from the link above which GCC version solves the problem.
Is it 4.5.3 ?

Thanks.

Felix.

[U-Boot] ppc -Os and _restgpr_##_x errors

[Wolfgang Denk]

Dear Felix Radensky,

In message <4EBBF502.40702@embedded-sol.com> you wrote:
> 
> On 11/10/2011 05:45 PM, Felix Radensky wrote:
> > No, we should not.  You should switch to a compiler version where this
> > problem has been fixed.  See second entry at
> > http://www.denx.de/wiki/U-Boot/GccBugsAndIssues
> 
> It is not clear from the link above which GCC version solves the problem.
> Is it 4.5.3 ?

I don't know when exactly the fixes were added.  None of the 4.5.x
versions worked for me, and I'm not even sure about 4.6.0.  It is
fixed in the 4.6.1 that comes with Yocto 1.1 or ELDK 5.1.

Best regards,

Wolfgang Denk

-- 
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
In the realm of scientific observation, luck is granted only to those
who are prepared.                                     - Louis Pasteur