| 1 |
1181 |
sfurman |
/* DPX2 host interface.
|
| 2 |
|
|
Copyright 1988, 1989, 1991, 1993, 1995, 2000
|
| 3 |
|
|
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 "gdbcore.h"
|
| 24 |
|
|
|
| 25 |
|
|
#include "gdb_string.h"
|
| 26 |
|
|
#include <sys/types.h>
|
| 27 |
|
|
#include <sys/param.h>
|
| 28 |
|
|
#include <sys/dir.h>
|
| 29 |
|
|
#include <signal.h>
|
| 30 |
|
|
#include <sys/user.h>
|
| 31 |
|
|
#include <sys/reg.h>
|
| 32 |
|
|
#include <sys/utsname.h>
|
| 33 |
|
|
|
| 34 |
|
|
|
| 35 |
|
|
/* this table must line up with REGISTER_NAMES in tm-68k.h */
|
| 36 |
|
|
/* symbols like 'A0' come from <sys/reg.h> */
|
| 37 |
|
|
static int regmap[] =
|
| 38 |
|
|
{
|
| 39 |
|
|
R0, R1, R2, R3, R4, R5, R6, R7,
|
| 40 |
|
|
A0, A1, A2, A3, A4, A5, A6, SP,
|
| 41 |
|
|
PS, PC,
|
| 42 |
|
|
FP0, FP1, FP2, FP3, FP4, FP5, FP6, FP7,
|
| 43 |
|
|
FP_CR, FP_SR, FP_IAR
|
| 44 |
|
|
};
|
| 45 |
|
|
|
| 46 |
|
|
/* blockend is the value of u.u_ar0, and points to the
|
| 47 |
|
|
* place where D0 is stored
|
| 48 |
|
|
*/
|
| 49 |
|
|
|
| 50 |
|
|
int
|
| 51 |
|
|
dpx2_register_u_addr (int blockend, int regnum)
|
| 52 |
|
|
{
|
| 53 |
|
|
if (regnum < FP0_REGNUM)
|
| 54 |
|
|
return (blockend + 4 * regmap[regnum]);
|
| 55 |
|
|
else
|
| 56 |
|
|
return (int) &(((struct user *) 0)->u_fpstate[regmap[regnum]]);
|
| 57 |
|
|
}
|
| 58 |
|
|
|
| 59 |
|
|
/* This is the amount to subtract from u.u_ar0
|
| 60 |
|
|
to get the offset in the core file of the register values.
|
| 61 |
|
|
Unfortunately this is not provided in the system header files.
|
| 62 |
|
|
To make matters worse, this value also differs between
|
| 63 |
|
|
the dpx/2200 and dpx/2300 models and nlist is not available on the dpx2.
|
| 64 |
|
|
We use utsname() to decide on which model we are running.
|
| 65 |
|
|
FIXME: This breaks cross examination of core files (it would not be hard
|
| 66 |
|
|
to check whether u.u_ar0 is between 0x7fff5000 and 0x7fffc000 and if so
|
| 67 |
|
|
use 0x7fff5000 and if not use 0x7fffc000. FIXME). */
|
| 68 |
|
|
|
| 69 |
|
|
#define KERNEL_U_ADDR_200 0x7fff5000
|
| 70 |
|
|
#define KERNEL_U_ADDR_300 0x7fffc000
|
| 71 |
|
|
|
| 72 |
|
|
CORE_ADDR kernel_u_addr;
|
| 73 |
|
|
|
| 74 |
|
|
void
|
| 75 |
|
|
_initialize_dpx2_nat (void)
|
| 76 |
|
|
{
|
| 77 |
|
|
struct utsname uts;
|
| 78 |
|
|
|
| 79 |
|
|
if (uname (&uts) == 0 && strcmp (uts.machine, "DPX/2200") == 0)
|
| 80 |
|
|
kernel_u_addr = KERNEL_U_ADDR_200;
|
| 81 |
|
|
else
|
| 82 |
|
|
kernel_u_addr = KERNEL_U_ADDR_300;
|
| 83 |
|
|
}
|
