[asterisk-dev] [Code Review]: sparc64 compile error, undefined reference to `__sync_fetch_and_add_4'

[Alec Davis]

> On Oct. 20, 2011, 2:54 a.m., wdoekes wrote:
> > trunk/Makefile, lines 174-176
> > <https://reviewboard.asterisk.org/r/1534/diff/1/?file=21266#file21266line174>
> >
> >     This comment is now broken. It should probably read something like:
> >     
> >     "Try v9, but step down to v8 or nothing if the compiler doesn't support it."

'debian stable 3.0' should perhaps have been 'debian 3.0 (woody)'
I didn't try woody, to see if the new test is broken. I could, just time.

And then a 32bit sparc, will we break that.


On Oct. 20, 2011, 2:54 a.m., Alec Davis wrote:
> > However.. I found this on the internet:
> > 
> > """Your problem is -mcpu=v8.  v8 processors (AFAICT) do not support the 
> > intrinsics necessary.  Remove that option (or whatever is causing that 
> > option) and it should work.  It may be that for some reason configure 
> > thinks that 32-bit code should use -mcpu=v8, but that isn't the case. 
> > Debian's default configuration (without -mcpu and -mtune) should work 
> > just fine for you."""
> > 
> > I wonder if setting the -mcpu option at all does more good than harm here.

I does compile and work on Squeeze with no -mcpu options, but what code optimization was produced???


- Alec


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On Oct. 20, 2011, 12:56 a.m., Alec Davis wrote:
> 
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> 
> (Updated Oct. 20, 2011, 12:56 a.m.)
> 
> 
> Review request for Asterisk Developers.
> 
> 
> Summary
> -------
> 
> Debian Squeeze or Ubuntu 9.04.
> 
> /usr/local/src/asterisk-1.8.7.0/include/asterisk/lock.h:600: undefined reference to `__sync_fetch_and_add_4'
> 
> Previous Debian releases are fine.
> 
> 
> This addresses bugs ASTERISK-17022 and ASTERISK-18651.
>     https://issues.asterisk.org/jira/browse/ASTERISK-17022
>     https://issues.asterisk.org/jira/browse/ASTERISK-18651
> 
> 
> Diffs
> -----
> 
>   trunk/Makefile 341525 
> 
> Diff: https://reviewboard.asterisk.org/r/1534/diff
> 
> 
> Testing
> -------
> 
> Tested sucessfully with;
> Debian Squeeze - where it would previously emit the above message and more.
> Debian Lenny - where it used to work without mcpu=v9
> Debian Etch - where it used to work without mcpu=v9
> 
> 
> Thanks,
> 
> Alec
> 
>

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