72 lines
2.0 KiB
C
72 lines
2.0 KiB
C
/* Native-dependent code for BSD Unix running on i386's, for GDB.
|
|
Copyright 1988, 1989, 1991, 1992 Free Software Foundation, Inc.
|
|
|
|
This file is part of GDB.
|
|
|
|
This program is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; either version 2 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program; if not, write to the Free Software
|
|
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
|
|
|
|
#include "defs.h"
|
|
#include <machine/reg.h>
|
|
|
|
/* this table must line up with REGISTER_NAMES in tm-i386.h */
|
|
/* symbols like 'tEAX' come from <machine/reg.h> */
|
|
static int tregmap[] =
|
|
{
|
|
tEAX, tECX, tEDX, tEBX,
|
|
tESP, tEBP, tESI, tEDI,
|
|
tEIP, tEFLAGS, tCS, tSS
|
|
};
|
|
|
|
#ifdef sEAX
|
|
static int sregmap[] =
|
|
{
|
|
sEAX, sECX, sEDX, sEBX,
|
|
sESP, sEBP, sESI, sEDI,
|
|
sEIP, sEFLAGS, sCS, sSS
|
|
};
|
|
#else /* No sEAX */
|
|
|
|
/* NetBSD has decided to collapse the s* and t* symbols. So if the s*
|
|
ones aren't around, use the t* ones for sregmap too. */
|
|
|
|
static int sregmap[] =
|
|
{
|
|
tEAX, tECX, tEDX, tEBX,
|
|
tESP, tEBP, tESI, tEDI,
|
|
tEIP, tEFLAGS, tCS, tSS
|
|
};
|
|
#endif /* No sEAX */
|
|
|
|
/* blockend is the value of u.u_ar0, and points to the
|
|
place where ES is stored. */
|
|
|
|
int
|
|
i386_register_u_addr (blockend, regnum)
|
|
int blockend;
|
|
int regnum;
|
|
{
|
|
/* The following condition is a kludge to get at the proper register map
|
|
depending upon the state of pcb_flag.
|
|
The proper condition would be
|
|
if (u.u_pcb.pcb_flag & FM_TRAP)
|
|
but that would require a ptrace call here and wouldn't work
|
|
for corefiles. */
|
|
|
|
if (blockend < 0x1fcc)
|
|
return (blockend + 4 * tregmap[regnum]);
|
|
else
|
|
return (blockend + 4 * sregmap[regnum]);
|
|
}
|