1 /* Native-dependent code for NetBSD/amd64.
2 
3    Copyright 2003, 2004 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., 59 Temple Place - Suite 330,
20    Boston, MA 02111-1307, 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 
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 }
73