Re: TOC overflow on linuxppc64

Re: TOC overflow on linuxppc64

[Steve Munroe]

For compatability with the current SLES 8 and xlc you should use the 
glibc-2.2.5 plus patches from 
ftp://ftp.linuxppc64.org/pub/people/sjmunroe/glibc225-ppc64-20021120.patch

Re: TOC overflow on linuxppc64

[Christoph Hellwig]

On Fri, Aug 29, 2003 at 10:07:47AM -0500, Steve Munroe wrote:
> For compatability with the current SLES 8 and xlc you should use the 
> glibc-2.2.5 plus patches from 

what about current cvs HEAD?

Re: TOC overflow on linuxppc64

[Jakub Jelinek]

On Fri, Aug 29, 2003 at 04:21:03PM +0100, Christoph Hellwig wrote:
> On Fri, Aug 29, 2003 at 10:07:47AM -0500, Steve Munroe wrote:
> > For compatability with the current SLES 8 and xlc you should use the 
> > glibc-2.2.5 plus patches from 
> 
> what about current cvs HEAD?

For that you need suitable GCC (e.g. one of):
- gcc-3_2-branch with Alan's patchset
- gcc-3_2-rhl8-branch
- gcc-3_3-branch with Alan's patchset
- gcc-3_3-rhl-branch
- gcc HEAD
recent binutils (CVS, hjl's) and CVS glibc.

	Jakub

how to access PC

[Mohammed Tajuddin]

Hello,

Has anyone tried accessing the program counter on linux powerpc64?  I
notice struct pt_regs defined in ptrace.h, does not contain any place
holder for program counter which is defined on mac-osx for example.
Basically I was trying to access PC, PS from within a program.
Appreciate your feedback.


Regards,
TAJ

Re: how to access PC

[Andrew Pinski]

Try this function:
void * __attribute__((noinline)) getpc()
{
	void *t;
	asm("mflr %0":"=r"(t));
	return t;
}
It might not work always because of sibcalling optimizations but it 
should get you started.

Thanks,
Andrew Pinski



On Monday, September 8, 2003, at 05:03 PM, Mohammed Tajuddin wrote:

> Hello,
>
> Has anyone tried accessing the program counter on linux powerpc64?  I
> notice struct pt_regs defined in ptrace.h, does not contain any place
> holder for program counter which is defined on mac-osx for example.
> Basically I was trying to access PC, PS from within a program.
> Appreciate your feedback.
>
>
> Regards,
> TAJ
>
>

Re: how to access PC

[Richard Henderson]

On Mon, Sep 08, 2003 at 06:26:34PM -0700, Andrew Pinski wrote:
> Try this function:
> void * __attribute__((noinline)) getpc()
> {
> 	void *t;
> 	asm("mflr %0":"=r"(t));
> 	return t;
> }

If you're not going to inline, __builtin_return_address(0) will work.


r~

TOC overflow on linuxppc64

[Mohammed Tajuddin]

Hello,

Can someone guide me to fix the problem with TOC overflow on linux
ppc64. After my various attempts building binutils/gcc/glibc following
instructions on linuxppc64.org, I continue to get the same error. 

gnu/local/lib/gcc-lib/powerpc64-linux/3.2.3/crtend.o(.text+0xa): In
function `.__do_global_ctors_aux':
: relocation truncated to fit: R_PPC64_TOC16_DS .toc

I don't have any problems building binutils etc. Somehow I am unable to
get the correct patch although its their on the internet. Following are 
the different versions I have tried so far. 
a. binutils 2.14, gcc 3.2 and glibc 2.3 with the patch
gcc-20030611-ppc64.diff
b. binutils 2.14, gcc 3.1 and glibc 2.3 with the above patch
c. binutils 2.14, gcc 3.3 and glibc 2.3 with the above patch
d. binutils 2.14, gcc 3.2 and glibc 2.2.5 with the above patch
e. binutils 2.14, gcc 3.2 and glibc 2.3 with all the gcc patches on
linuxppc64.org although there were failures while applying the patch.

Appreciate your feedback with the problem of multiple TOC. Please let me
know if anyone has tried, the exact versions of the different tools to
fix this problem. 

Regards,
TAJ

Re: TOC overflow on linuxppc64

[Alan Modra]

Use mainline CVS binutils.

-- 
Alan Modra
IBM OzLabs - Linux Technology Centre

Re: TOC overflow on linuxppc64

[Mohammed Tajuddin]

mainline CVS binutils solved the problem. Thanks a lot. 

Regards,
TAJ

Alan Modra wrote:
> 
> Use mainline CVS binutils.
> 
> --
> Alan Modra
> IBM OzLabs - Linux Technology Centre