projects / thirdparty / binutils-gdb.git / blame
| Commit | Line | Data |
|---|---|---|
| 5076de82 | 1 | /* Parameters for execution on a Sun, for GDB, the GNU debugger. |
| a77bf669 | 2 | Copyright (C) 1986, 1987, 1989, 1996 Free Software Foundation, Inc. |
| 5076de82 FF |
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. */ |
| 5076de82 FF |
19 | |
| 20 | #define HOST_BYTE_ORDER BIG_ENDIAN | |
| 21 | ||
| 22 | /* This is the amount to subtract from u.u_ar0 | |
| 23 | to get the offset in the core file of the register values. */ | |
| 24 | ||
| 25 | #define KERNEL_U_ADDR 0x2800 | |
| 26 | ||
| 5076de82 FF |
27 | \f |
| 28 | /* Interface definitions for kernel debugger KDB. */ | |
| 29 | ||
| 30 | /* Map machine fault codes into signal numbers. | |
| 31 | First subtract 0, divide by 4, then index in a table. | |
| 32 | Faults for which the entry in this table is 0 | |
| 33 | are not handled by KDB; the program's own trap handler | |
| 34 | gets to handle then. */ | |
| 35 | ||
| 36 | #define FAULT_CODE_ORIGIN 0 | |
| 37 | #define FAULT_CODE_UNITS 4 | |
| 38 | #define FAULT_TABLE \ | |
| 39 | { 0, 0, 0, 0, SIGTRAP, 0, 0, 0, \ | |
| 40 | 0, SIGTRAP, 0, 0, 0, 0, 0, SIGKILL, \ | |
| 41 | 0, 0, 0, 0, 0, 0, 0, 0, \ | |
| 42 | SIGILL } | |
| 43 | ||
| 44 | /* Start running with a stack stretching from BEG to END. | |
| 45 | BEG and END should be symbols meaningful to the assembler. | |
| 46 | This is used only for kdb. */ | |
| 47 | ||
| 48 | #define INIT_STACK(beg, end) \ | |
| 49 | { asm (".globl end"); \ | |
| 50 | asm ("movel $ end, sp"); \ | |
| 51 | asm ("clrl fp"); } | |
| 52 | ||
| 53 | /* Push the frame pointer register on the stack. */ | |
| 54 | #define PUSH_FRAME_PTR \ | |
| 55 | asm ("movel fp, -(sp)"); | |
| 56 | ||
| 57 | /* Copy the top-of-stack to the frame pointer register. */ | |
| 58 | #define POP_FRAME_PTR \ | |
| 59 | asm ("movl (sp), fp"); | |
| 60 | ||
| 61 | /* After KDB is entered by a fault, push all registers | |
| 62 | that GDB thinks about (all NUM_REGS of them), | |
| 63 | so that they appear in order of ascending GDB register number. | |
| 64 | The fault code will be on the stack beyond the last register. */ | |
| 65 | ||
| 66 | #define PUSH_REGISTERS \ | |
| 67 | { asm ("clrw -(sp)"); \ | |
| 68 | asm ("pea 10(sp)"); \ | |
| 69 | asm ("movem $ 0xfffe,-(sp)"); } | |
| 70 | ||
| 71 | /* Assuming the registers (including processor status) have been | |
| 72 | pushed on the stack in order of ascending GDB register number, | |
| 73 | restore them and return to the address in the saved PC register. */ | |
| 74 | ||
| 75 | #define POP_REGISTERS \ | |
| 76 | { asm ("subil $8,28(sp)"); \ | |
| 77 | asm ("movem (sp),$ 0xffff"); \ | |
| 78 | asm ("rte"); } |