* defs.h (gdb_osabi): New enum value GDB_OSABI_AIX.

        * osabi.c (gdb_osabi_name): Add name of new value GDB_OSABI_AIX.
        * rs6000-tdep.h: New file.
        * rs6000-tdep.c: Include "rs6000-tdep.h".
        (rs6000_gdbarch_init): Remove enabling of software single step.
        Will be done in the AIX-specific initialization routine.
        * rs6000-aix-tdep.c: New file.
        * config/powerpc/aix.mt (TDEPFILES): Add rs6000-aix-tdep.o.
        * Makefile.in (rs6000_tdep_h): New variable.
        (rs6000-tdep.o): Update dependencies.
        (rs6000-aix-tdep.o): New rule.

1 files changed, 55 insertions, 0 deletions

diff --git a/gdb/rs6000-aix-tdep.c b/gdb/rs6000-aix-tdep.c
new file mode 100644
index 0000000..a488637
--- /dev/null
+++ b/gdb/rs6000-aix-tdep.c
@@ -0,0 +1,55 @@
+/* Native support code for PPC AIX, for GDB the GNU debugger.
+
+   Copyright (C) 2006 Free Software Foundation, Inc.
+
+   Free Software Foundation, Inc.
+
+   This file is part of GDB.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include "defs.h"
+#include "osabi.h"
+#include "rs6000-tdep.h"
+
+static enum gdb_osabi
+rs6000_aix_osabi_sniffer (bfd *abfd)
+{
+  
+  if (bfd_get_flavour (abfd) == bfd_target_xcoff_flavour);
+    return GDB_OSABI_AIX;
+
+  return GDB_OSABI_UNKNOWN;
+}
+
+static void
+rs6000_aix_init_osabi (struct gdbarch_info info, struct gdbarch *gdbarch)
+{
+  /* RS6000/AIX does not support PT_STEP.  Has to be simulated.  */
+  set_gdbarch_software_single_step (gdbarch, rs6000_software_single_step);
+}
+
+void
+_initialize_rs6000_aix_tdep (void)
+{
+  gdbarch_register_osabi_sniffer (bfd_arch_rs6000,
+                                  bfd_target_xcoff_flavour,
+                                  rs6000_aix_osabi_sniffer);
+
+  gdbarch_register_osabi (bfd_arch_rs6000, 0, GDB_OSABI_AIX,
+                          rs6000_aix_init_osabi);
+}
+