projects / deliverable / binutils-gdb.git / blame
| Commit | Line | Data |
|---|---|---|
| 0a8f1742 JK |
1 | /* DPX2 host interface. |
| 2 | Copyright (C) 1988, 1989, 1991 Free Software Foundation, Inc. | |
| 3 | ||
| 4 | This file is part of GDB. | |
| 5 | ||
| 6 | This program is free software; you can redistribute it and/or modify | |
| 7 | it under the terms of the GNU General Public License as published by | |
| 8 | the Free Software Foundation; either version 2 of the License, or | |
| 9 | (at your option) any later version. | |
| 10 | ||
| 11 | This program is distributed in the hope that it will be useful, | |
| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 14 | GNU General Public License for more details. | |
| 15 | ||
| 16 | You should have received a copy of the GNU General Public License | |
| 17 | along with this program; if not, write to the Free Software | |
| 6c9638b4 | 18 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
| 0a8f1742 JK |
19 | |
| 20 | #include "defs.h" | |
| 21 | #include "gdbcore.h" | |
| 22 | ||
| 2b576293 | 23 | #include "gdb_string.h" |
| 0a8f1742 JK |
24 | #include <sys/types.h> |
| 25 | #include <sys/param.h> | |
| 26 | #include <sys/dir.h> | |
| 27 | #include <signal.h> | |
| 28 | #include <sys/user.h> | |
| 29 | #include <sys/reg.h> | |
| 30 | #include <sys/utsname.h> | |
| 31 | ||
| 32 | \f | |
| 33 | /* this table must line up with REGISTER_NAMES in tm-68k.h */ | |
| 34 | /* symbols like 'A0' come from <sys/reg.h> */ | |
| 35 | static int regmap[] = | |
| 36 | { | |
| 37 | R0, R1, R2, R3, R4, R5, R6, R7, | |
| 38 | A0, A1, A2, A3, A4, A5, A6, SP, | |
| 39 | PS, PC, | |
| 40 | FP0, FP1, FP2, FP3, FP4, FP5, FP6, FP7, | |
| 41 | FP_CR, FP_SR, FP_IAR | |
| 42 | }; | |
| 43 | ||
| 44 | /* blockend is the value of u.u_ar0, and points to the | |
| 45 | * place where D0 is stored | |
| 46 | */ | |
| 47 | ||
| 48 | int | |
| 49 | dpx2_register_u_addr (blockend, regnum) | |
| 50 | int blockend; | |
| 51 | 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 | |
| 976bb0be | 75 | _initialize_dpx2_nat () |
| 0a8f1742 JK |
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 | } |