| /* DPX2 host interface. |
| Copyright 1988, 1989, 1991, 1993, 1995, 2000 |
| 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., 59 Temple Place - Suite 330, |
| Boston, MA 02111-1307, USA. */ |
| |
| #include "defs.h" |
| #include "gdbcore.h" |
| |
| #include "gdb_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_NAME in "m68k-tdep.c". */ |
| /* 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 (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_dpx2_nat (void) |
| { |
| 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; |
| } |