gdb/rs6000-aix-tdep.c

   1 /* Native support code for PPC AIX, for GDB the GNU debugger.
   2
   3    Copyright (C) 2006, 2007 Free Software Foundation, Inc.
   4
   5    Free Software Foundation, Inc.
   6
   7    This file is part of GDB.
   8
   9    This program is free software; you can redistribute it and/or modify
  10    it under the terms of the GNU General Public License as published by
  11    the Free Software Foundation; either version 2 of the License, or
  12    (at your option) any later version.
  13
  14    This program is distributed in the hope that it will be useful,
  15    but WITHOUT ANY WARRANTY; without even the implied warranty of
  16    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17    GNU General Public License for more details.
  18
  19    You should have received a copy of the GNU General Public License
  20    along with this program; if not, write to the Free Software
  21    Foundation, Inc., 59 Temple Place - Suite 330,
  22    Boston, MA 02111-1307, USA.  */
  23
  24 #include "defs.h"
  25 #include "osabi.h"
  26 #include "rs6000-tdep.h"
  27 #include "ppc-tdep.h"
  28
  29 static enum gdb_osabi
  30 rs6000_aix_osabi_sniffer (bfd *abfd)
  31 {
  32
  33   if (bfd_get_flavour (abfd) == bfd_target_xcoff_flavour);
  34     return GDB_OSABI_AIX;
  35
  36   return GDB_OSABI_UNKNOWN;
  37 }
  38
  39 static void
  40 rs6000_aix_init_osabi (struct gdbarch_info info, struct gdbarch *gdbarch)
  41 {
  42   /* RS6000/AIX does not support PT_STEP.  Has to be simulated.  */
  43   set_gdbarch_software_single_step (gdbarch, rs6000_software_single_step);
  44
  45   /* Minimum possible text address in AIX.  */
  46   gdbarch_tdep (gdbarch)->text_segment_base = 0x10000000;
  47 }
  48
  49 void
  50 _initialize_rs6000_aix_tdep (void)
  51 {
  52   gdbarch_register_osabi_sniffer (bfd_arch_rs6000,
  53                                   bfd_target_xcoff_flavour,
  54                                   rs6000_aix_osabi_sniffer);
  55
  56   gdbarch_register_osabi (bfd_arch_rs6000, 0, GDB_OSABI_AIX,
  57                           rs6000_aix_init_osabi);
  58 }
  59