MIPS stack tracing

[Andrew Cagney]

> It would go back to SGI (Hmm, didn't sgi switch to dwarf2?) which was 
>> using mdebug info.  A number of embedded MIPS toolchains would have been 
>> mdebug for compatability (I know this as I filed gdb/150, gdb/152 and 
>> gdb/149) and I have a sinking feeling that they haven't yet ``just gone 
>> away''.
> 
> 
> Is gdb/150 still valid?  I thought I remembered that being fixed.  But
> if it is, I may take a potshot at it.


Yes :-(

I suspect extracting teath from a wodden hen or even the dwarf2 changes 
JimB outlined are easier tasks ... :-)  Remember it is extra_*func*_info 
and not extra_*frame*_info.  Grep for mips_extra_func_info in the 
*ALPHA* sources.

And yes, that bag in the pocket in front of you is there for a reason.

Andrew