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Re: [RFA] config/rs6000/tm-rs6000.h STAB_REG_TO_REGNUM
- From: Kevin Buettner <kevinb at redhat dot com>
- To: Elena Zannoni <ezannoni at cygnus dot com>, Kevin Buettner <kevinb at redhat dot com>
- Cc: gdb-patches at sources dot redhat dot com, vmakarov at redhat dot com
- Date: Wed, 5 Dec 2001 15:51:48 -0700
- Subject: Re: [RFA] config/rs6000/tm-rs6000.h STAB_REG_TO_REGNUM
- References: <15367.50385.770078.559327@krustylu.cygnus.com> <3C07CD1A.4010403@cygnus.com> <15367.63139.561172.481628@krustylu.cygnus.com> <1011205215641.ZM5797@ocotillo.lan> <15374.41016.151518.113014@krustylu.cygnus.com>
On Dec 5, 5:31pm, Elena Zannoni wrote:
> > > + case 64: /* mq */
> > > + if (TARGET_ARCHITECTURE->mach == bfd_mach_ppc_601)
> > > + regnum = 124;
> >
> > Hmm... I wish we had a symbolic constant for this one. (It took me
> > a while to figure out why this register number was different.)
>
> Hmmm, should these regnums be part of the gdbarch_tdep structure?
> That's how I did it for the SH. (Defined to -1 if not applicable) It
> seems to me that not all the variants have register (say, for
> instance) 67 defined to be the LR register or even exist. This way we
> could also do error checking in this routine.
I had occassion to look at SH recently and saw how you did things. I
think the mechanism you propose would be appropriate for PPC too.
Kevin