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[COMMITTED] allow gdb to access altivec registers - OK to commit?
- From: Paul Gilliam <pgilliam at us dot ibm dot com> (by way of Paul Gilliam <pgilliam at us dot ibm dot com>)
- To: gdb-patches at sources dot redhat dot com
- Date: Tue, 1 Nov 2005 13:13:52 -0800
- Subject: [COMMITTED] allow gdb to access altivec registers - OK to commit?
- Reply-to: pgilliam at us dot ibm dot com
On Monday 31 October 2005 13:56, Paul Gilliam wrote:
> I revised the ChangeLog entry to note that this change affects GNU/Linux only.
>
> OK to commit? (was the previous posting by Kevin an OK to commit?)
>
> -=# Paul #=-
>
> PS: I realy want this to go int 6.4!
>
> 2005-10-31 Paul Gilliam <pgilliam@us.ibm.com>
>
> * rs6000-tdep.c (rs6000_gdbarch_init): On GNU/Linux only, assume
> that bfd_mach_ppc64 has altivec unit, just like bfd_mach_ppc.
>
> Index: rs6000-tdep.c
> ===================================================================
> RCS file: /cvs/src/src/gdb/rs6000-tdep.c,v
> retrieving revision 1.246
> diff -a -u -p -r1.246 rs6000-tdep.c
> --- rs6000-tdep.c 14 Oct 2005 20:17:11 -0000 1.246
> +++ rs6000-tdep.c 21 Oct 2005 22:44:15 -0000
> @@ -3376,10 +3376,21 @@ rs6000_gdbarch_init (struct gdbarch_info
>
> switch (info.osabi)
> {
> + case GDB_OSABI_LINUX:
> + /* FIXME: pgilliam/2005-10-21: Assume all PowerPC 64-bit linux systems
> + have altivec registers. If not, ptrace will fail the first time it's
> + called to access one and will not be called again. This wart will
> + be removed when Daniel Jacobowitz's proposal for autodetecting target
> + registers is implimented. */
> + if ((v->arch == bfd_arch_powerpc) && ((v->mach)== bfd_mach_ppc64))
> + {
> + tdep->ppc_vr0_regnum = 71;
> + tdep->ppc_vrsave_regnum = 104;
> + }
> + /* Fall Thru */
> case GDB_OSABI_NETBSD_AOUT:
> case GDB_OSABI_NETBSD_ELF:
> case GDB_OSABI_UNKNOWN:
> - case GDB_OSABI_LINUX:
> set_gdbarch_unwind_pc (gdbarch, rs6000_unwind_pc);
> frame_unwind_append_sniffer (gdbarch, rs6000_frame_sniffer);
> set_gdbarch_unwind_dummy_id (gdbarch, rs6000_unwind_dummy_id);
>
>