mirror of
https://github.com/darlinghq/darling-gdb.git
synced 2024-11-24 20:49:43 +00:00
0a8f174266
* config/m68k/{t,x,n}m-dpx2.h, dpx2-nat.c: New files.
* config/m68k/dpx2.m{h,t}: New files.
84 lines
2.4 KiB
C
84 lines
2.4 KiB
C
/* DPX2 host interface.
|
||
Copyright (C) 1988, 1989, 1991 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 "gdbcore.h"
|
||
|
||
#include <string.h>
|
||
#include <sys/types.h>
|
||
#include <sys/param.h>
|
||
#include <sys/dir.h>
|
||
#include <signal.h>
|
||
#include <sys/user.h>
|
||
#include <sys/reg.h>
|
||
#include <sys/utsname.h>
|
||
|
||
|
||
/* this table must line up with REGISTER_NAMES in tm-68k.h */
|
||
/* symbols like 'A0' come from <sys/reg.h> */
|
||
static int regmap[] =
|
||
{
|
||
R0, R1, R2, R3, R4, R5, R6, R7,
|
||
A0, A1, A2, A3, A4, A5, A6, SP,
|
||
PS, PC,
|
||
FP0, FP1, FP2, FP3, FP4, FP5, FP6, FP7,
|
||
FP_CR, FP_SR, FP_IAR
|
||
};
|
||
|
||
/* blockend is the value of u.u_ar0, and points to the
|
||
* place where D0 is stored
|
||
*/
|
||
|
||
int
|
||
dpx2_register_u_addr (blockend, regnum)
|
||
int blockend;
|
||
int regnum;
|
||
{
|
||
if (regnum < FP0_REGNUM)
|
||
return (blockend + 4 * regmap[regnum]);
|
||
else
|
||
return (int) &(((struct user *)0)->u_fpstate[regmap[regnum]]);
|
||
}
|
||
|
||
/* This is the amount to subtract from u.u_ar0
|
||
to get the offset in the core file of the register values.
|
||
Unfortunately this is not provided in the system header files.
|
||
To make matters worse, this value also differs between
|
||
the dpx/2200 and dpx/2300 models and nlist is not available on the dpx2.
|
||
We use utsname() to decide on which model we are running.
|
||
FIXME: This breaks cross examination of core files (it would not be hard
|
||
to check whether u.u_ar0 is between 0x7fff5000 and 0x7fffc000 and if so
|
||
use 0x7fff5000 and if not use 0x7fffc000. FIXME). */
|
||
|
||
#define KERNEL_U_ADDR_200 0x7fff5000
|
||
#define KERNEL_U_ADDR_300 0x7fffc000
|
||
|
||
CORE_ADDR kernel_u_addr;
|
||
|
||
void
|
||
_initialize_kernel_u_addr ()
|
||
{
|
||
struct utsname uts;
|
||
|
||
if (uname (&uts) == 0 && strcmp (uts.machine, "DPX/2200") == 0)
|
||
kernel_u_addr = KERNEL_U_ADDR_200;
|
||
else
|
||
kernel_u_addr = KERNEL_U_ADDR_300;
|
||
}
|