1 /* Native-dependent code for BSD Unix running on i386's, for GDB.
2 Copyright 1988, 1989, 1991, 1992, 1994, 1995, 1996, 1998, 1999, 2000,
3 2001 Free Software Foundation, Inc.
5 This file is part of GDB.
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.
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.
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. */
24 #include <machine/reg.h>
26 /* This table must line up with REGISTER_NAME in "i386-tdep.c". */
27 /* symbols like 'tEAX' come from <machine/reg.h> */
28 static int tregmap
[] =
30 tEAX
, tECX
, tEDX
, tEBX
,
31 tESP
, tEBP
, tESI
, tEDI
,
32 tEIP
, tEFLAGS
, tCS
, tSS
36 static int sregmap
[] =
38 sEAX
, sECX
, sEDX
, sEBX
,
39 sESP
, sEBP
, sESI
, sEDI
,
40 sEIP
, sEFLAGS
, sCS
, sSS
44 /* FreeBSD has decided to collapse the s* and t* symbols. So if the s*
45 ones aren't around, use the t* ones for sregmap too. */
47 static int sregmap
[] =
49 tEAX
, tECX
, tEDX
, tEBX
,
50 tESP
, tEBP
, tESI
, tEDI
,
51 tEIP
, tEFLAGS
, tCS
, tSS
55 /* blockend is the value of u.u_ar0, and points to the
56 place where ES is stored. */
59 i386_register_u_addr (int blockend
, int regnum
)
61 /* The following condition is a kludge to get at the proper register map
62 depending upon the state of pcb_flag.
63 The proper condition would be
64 if (u.u_pcb.pcb_flag & FM_TRAP)
65 but that would require a ptrace call here and wouldn't work
68 if (blockend
< 0x1fcc)
69 return (blockend
+ 4 * tregmap
[regnum
]);
71 return (blockend
+ 4 * sregmap
[regnum
]);
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