Multi-arch and user-control of architecture flags

[Richard Earnshaw]

> >   /* Add root prefix command for all "set mips"/"show mips" commands */
> >   add_prefix_cmd ("mips", no_class, set_mips_command,
> >                   "Various MIPS specific commands.",
> >                   &setmipscmdlist, "set mips ", 0, &setlist);
> > 
> >   add_prefix_cmd ("mips", no_class, show_mips_command,
> >                   "Various MIPS specific commands.",
> >                   &showmipscmdlist, "show mips ", 0, &showlist);
> > 
> 
> Just a PS on this.  The command set ``set mips fpu ...'' et.al. isn't 
> perfect - it sets a global for all mips which is probably sufficient for 
> what people want.
> 
> Eventually a per thread command may be needed.   So that a target 
> containing an 8086 and x86-64 can have, separatly, their disassembly 
> mode.  Something like:
> 
> 	thread 5 set i386 disassembler x86-64
> 
> (just ignore the syntax though).  However, not our problem :-)
> 

Yeah!  I was thinking of a similar sort of requirement if a user has two 
physical CPUs in the design, then you would need to be able to configure 
each instance.

However, we would need to be able to have multiple instances of the 
gdbarch current for that to work...

R.