Re: [Tinycc-devel] Failed compilation on armel: bug?

[Thomas Preud'homme]

On Tuesday 11 May 2010 02:20:15 Daniel Glöckner wrote:
> On Mon, May 10, 2010 at 01:13:33AM +0200, Thomas Preud'homme wrote:
> > tcc tests fails to run on armel debian build daemon and it doesn't seems
> > like a debian specific issue as I got a "can't relocate at value x"
> > message. See
> > https://buildd.debian.org/fetch.cgi?pkg=tcc&arch=armel&ver=0.9.25-3&stam
> > p=1273440303&file=log for more details.
> 
> There appear to be several issues with linking the debian libraries.
> One of them is the lack of support for R_ARM_V4BX relocations in tinycc.
> I'll probably have some more time to look deeper into this at the end of
> the week.

Thanks for your reactivity. I don't know how much time it requires and if I 
can help you I'd be very happy to do so. That would be great if tcc could 
finally be available on armel for this debian release. However, no pressure, if 
it requires too much time that will wait the next release :)

Let me know how I can help. I don't really understand how the lack of support 
of that relocation is problematic for tinycc. I would rather expect the 
reverse, if tinycc was using a relocation not supported by the dynamic linker. 
What is actually the problem ? I took a quick glance at the code and it seems 
the relocation area is out of scope of the max offset possible for the 
instruction being relocated (but maybe I'm wrong). Does R_ARM_V4BX relocation 
provide a way to extends that limit ?
> 
>   Daniel

Best regards and thanks again for taking a look at it.

Thomas

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