gdb/shnbsd-tdep.c

   1 /* Target-dependent code for NetBSD/sh.
   2
   3    Copyright (C) 2002, 2003, 2006, 2007, 2008, 2009
   4    Free Software Foundation, Inc.
   5
   6    Contributed by Wasabi Systems, Inc.
   7
   8    This file is part of GDB.
   9
  10    This program is free software; you can redistribute it and/or modify
  11    it under the terms of the GNU General Public License as published by
  12    the Free Software Foundation; either version 3 of the License, or
  13    (at your option) any later version.
  14
  15    This program is distributed in the hope that it will be useful,
  16    but WITHOUT ANY WARRANTY; without even the implied warranty of
  17    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18    GNU General Public License for more details.
  19
  20    You should have received a copy of the GNU General Public License
  21    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  22
  23 #include "defs.h"
  24 #include "gdbcore.h"
  25 #include "regset.h"
  26 #include "value.h"
  27 #include "osabi.h"
  28
  29 #include "gdb_string.h"
  30
  31 #include "sh-tdep.h"
  32 #include "solib-svr4.h"
  33
  34 /* Convert a register number into an offset into a ptrace
  35    register structure.  */
  36 static const struct sh_corefile_regmap regmap[] =
  37 {
  38   {R0_REGNUM,      20 * 4},
  39   {R0_REGNUM + 1,  19 * 4},
  40   {R0_REGNUM + 2,  18 * 4},
  41   {R0_REGNUM + 3,  17 * 4},
  42   {R0_REGNUM + 4,  16 * 4},
  43   {R0_REGNUM + 5,  15 * 4},
  44   {R0_REGNUM + 6,  14 * 4},
  45   {R0_REGNUM + 7,  13 * 4},
  46   {R0_REGNUM + 8,  12 * 4},
  47   {R0_REGNUM + 9,  11 * 4},
  48   {R0_REGNUM + 10, 10 * 4},
  49   {R0_REGNUM + 11,  9 * 4},
  50   {R0_REGNUM + 12,  8 * 4},
  51   {R0_REGNUM + 13,  7 * 4},
  52   {R0_REGNUM + 14,  6 * 4},
  53   {R0_REGNUM + 15,  5 * 4},
  54   {PC_REGNUM,       0 * 4},
  55   {SR_REGNUM,       1 * 4},
  56   {PR_REGNUM,       2 * 4},
  57   {MACH_REGNUM,     3 * 4},
  58   {MACL_REGNUM,     4 * 4},
  59   {-1 /* Terminator.  */, 0}
  60 };
  61 \f
  62
  63 static void
  64 shnbsd_init_abi (struct gdbarch_info info,
  65                   struct gdbarch *gdbarch)
  66 {
  67   struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
  68
  69   tdep->core_gregmap = (struct sh_corefile_regmap *)regmap;
  70
  71   set_solib_svr4_fetch_link_map_offsets
  72     (gdbarch, svr4_ilp32_fetch_link_map_offsets);
  73 }
  74 \f
  75
  76 /* OpenBSD uses uses the traditional NetBSD core file format, even for
  77    ports that use ELF.  */
  78 #define GDB_OSABI_NETBSD_CORE GDB_OSABI_OPENBSD_ELF
  79
  80 static enum gdb_osabi
  81 shnbsd_core_osabi_sniffer (bfd *abfd)
  82 {
  83   if (strcmp (bfd_get_target (abfd), "netbsd-core") == 0)
  84     return GDB_OSABI_NETBSD_CORE;
  85
  86   return GDB_OSABI_UNKNOWN;
  87 }
  88
  89 /* Provide a prototype to silence -Wmissing-prototypes.  */
  90 extern initialize_file_ftype _initialize_shnbsd_tdep;
  91
  92 void
  93 _initialize_shnbsd_tdep (void)
  94 {
  95   /* BFD doesn't set a flavour for NetBSD style a.out core files.  */
  96   gdbarch_register_osabi_sniffer (bfd_arch_sh, bfd_target_unknown_flavour,
  97                                   shnbsd_core_osabi_sniffer);
  98
  99   gdbarch_register_osabi (bfd_arch_sh, 0, GDB_OSABI_NETBSD_ELF,
 100                           shnbsd_init_abi);
 101   gdbarch_register_osabi (bfd_arch_sh, 0, GDB_OSABI_OPENBSD_ELF,
 102                           shnbsd_init_abi);
 103 }