[asterisk-dev] ibgsm breakage exposed by gcc-4.2

[Michael Keuter]

>   Regarding the interaction between libgsm and gcc 4.2 it continues 
>to raise its ugly head.
>
>https://issues.asterisk.org/view.php?id=17688
>
>Steve suggests that the issue is with incorrect annotation with the 
>asm sequence, and the optimization performed by gcc-4.2 breaks 
>certain constraints that aren't called out specifically by the asm 
>code's annotations.
>
>Ultimately this patch can be backed out if the asm gets annotated 
>correctly.  Don't know if any efforts are underway to investigate 
>this more thoroughly, however.
>
>If no one sees any issues with this, I'd like to request that we 
>move to commit.
>
>Thanks,
>
>-Philip

The patch works for me. No GSM distortions with GCC 4.2.

Michael

http://www.mksolutions.info