gdb/amd64nbsd-nat.c

   1 /* Native-dependent code for NetBSD/amd64.
   2
   3    Copyright (C) 2003, 2004, 2007 Free Software Foundation, Inc.
   4
   5    This file is part of GDB.
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 2 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program; if not, write to the Free Software
  19    Foundation, Inc., 51 Franklin Street, Fifth Floor,
  20    Boston, MA 02110-1301, USA.  */
  21
  22 #include "defs.h"
  23 #include "target.h"
  24
  25 #include "gdb_assert.h"
  26
  27 #include "amd64-tdep.h"
  28 #include "amd64-nat.h"
  29
  30 /* Mapping between the general-purpose registers in NetBSD/amd64
  31    `struct reg' format and GDB's register cache layout for
  32    NetBSD/i386.
  33
  34    Note that most (if not all) NetBSD/amd64 registers are 64-bit,
  35    while the NetBSD/i386 registers are all 32-bit, but since we're
  36    little-endian we get away with that.  */
  37
  38 /* From <machine/reg.h>.  */
  39 static int amd64nbsd32_r_reg_offset[] =
  40 {
  41   14 * 8,                       /* %eax */
  42   3 * 8,                        /* %ecx */
  43   2 * 8,                        /* %edx */
  44   13 * 8,                       /* %ebx */
  45   24 * 8,                       /* %esp */
  46   12 * 8,                       /* %ebp */
  47   1 * 8,                        /* %esi */
  48   0 * 8,                        /* %edi */
  49   21 * 8,                       /* %eip */
  50   23 * 8,                       /* %eflags */
  51   22 * 8,                       /* %cs */
  52   25 * 8,                       /* %ss */
  53   18 * 8,                       /* %ds */
  54   17 * 8,                       /* %es */
  55   16 * 8,                       /* %fs */
  56   15 * 8                        /* %gs */
  57 };
  58 \f
  59
  60 /* Provide a prototype to silence -Wmissing-prototypes.  */
  61 void _initialize_amd64nbsd_nat (void);
  62
  63 void
  64 _initialize_amd64nbsd_nat (void)
  65 {
  66   amd64_native_gregset32_reg_offset = amd64nbsd32_r_reg_offset;
  67   amd64_native_gregset32_num_regs = ARRAY_SIZE (amd64nbsd32_r_reg_offset);
  68   amd64_native_gregset64_reg_offset = amd64nbsd_r_reg_offset;
  69
  70   /* We've got nothing to add to the common *BSD/amd64 target.  */
  71   add_target (amd64bsd_target ());
  72 }