Re: [RFC] Changes to *_*regset functions

[Daniel Jacobowitz <dmj+@andrew.cmu.edu>]

On Fri, Jul 13, 2001 at 12:35:13PM -0700, Kevin Buettner wrote:
> On Jul 13,  2:46pm, Andrew Cagney wrote:
> 
> > > Along with the cross-core handling, and eventually cross-thread support, I
> > > want to multi-arch supply_gregset/fill_gregset/supply_fpregset/fill_fpregset,
> > > and make them target rather than native functions where possible.  The issue,
> > > of course, is that the *regset_t and *reg_t types are not available to us
> > > when cross compiling, and attempting to make them available seems the wrong
> > > way to go.
> > 
> > 
> > Do they belong in gdbarch?  gdbarch contains things that describe the 
> > target systems ISA, ABI, ...
> > 
> > Something like supply_gregset() might use gdbarch.  I don't know that it 
> > belongs in multi-arch.
> 
> For Daniel's purposes, supply_gregset() does need to be multi-arch. 
> Imagine wanting to debug UnixWare, Solaris/x86, Linux, and FreeBSD
> core files from a NetBSD/PPC platform.  In other words, think of the
> core file format as an extension of the ABI.

Exactly what I wanted to address.  The other issue is with thread
libraries; thread_db makes calls down to supply_gregset and
fill_gregset, so if we ever share that layer between two ABIs, this
will need to happen.

-- 
Daniel Jacobowitz                           Carnegie Mellon University
MontaVista Software                         Debian GNU/Linux Developer