| /* Parameters for execution on a Sony/NEWS, for GDB, the GNU debugger. |
| Copyright 1987, 1989, 1992, 1993, 1994, 1996 |
| 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. */ |
| |
| #define HOST_BYTE_ORDER BIG_ENDIAN |
| |
| #include <sys/param.h> /* For INT_MIN */ |
| |
| #define HAVE_WAIT_STRUCT |
| |
| /* We can't use "isatty" or "fileno" on this machine. This isn't good, |
| but it will have to do. */ |
| #define ISATTY(FP) ((FP) == stdin || (FP) == stdout) |
| |
| /* THis is the amount to subtract from u.u_ar0 |
| to get the offset in the core file of the register values. */ |
| |
| #define KERNEL_U_ADDR UADDR |
| |
| /* The offsets in this macro are from /usr/include/machine/reg.h */ |
| |
| #define REGISTER_U_ADDR(addr, blockend, regno) \ |
| { static char offsets[] = { \ |
| /*d0-d7:*/1,2,3,4,5,6,7,8, \ |
| /*a0-a6:*/9,10,11,12,13,14,15, /*sp:*/-4, /*ps:*/0, /*pc:*/-1, \ |
| /*fp0-fp7:*/19,22,25,28,31,34,37,40, /*fpc:*/16,17,18 }; \ |
| addr = blockend + 4 * offsets[regno]; \ |
| } |
| |
| /* NewsOS 3.3 does not define errno in <errno.h>. */ |
| extern int errno; |
| |
| /* Interface definitions for kernel debugger KDB. */ |
| |
| /* Use GNU assembler instead of standard assembler */ |
| #define USE_GAS |
| |
| /* Motorola assembly format */ |
| #ifndef USE_GAS |
| #define MOTOROLA |
| #endif |
| |
| /* Map machine fault codes into signal numbers. |
| First subtract 0, divide by 4, then index in a table. |
| Faults for which the entry in this table is 0 |
| are not handled by KDB; the program's own trap handler |
| gets to handle then. */ |
| |
| #define FAULT_CODE_ORIGIN 0 |
| #define FAULT_CODE_UNITS 4 |
| #define FAULT_TABLE \ |
| { 0, 0, 0, 0, SIGTRAP, 0, 0, 0, \ |
| 0, SIGTRAP, 0, 0, 0, 0, 0, SIGKILL, \ |
| 0, 0, 0, 0, 0, 0, 0, 0, \ |
| SIGILL } |
| |
| /* Start running with a stack stretching from BEG to END. |
| BEG and END should be symbols meaningful to the assembler. |
| This is used only for kdb. */ |
| |
| #ifdef MOTOROLA |
| #define INIT_STACK(beg, end) \ |
| { asm (".globl end"); \ |
| asm ("move.l $ end, sp"); \ |
| asm ("clr.l fp"); } |
| #else |
| #define INIT_STACK(beg, end) \ |
| { asm (".globl end"); \ |
| asm ("movel $ end, sp"); \ |
| asm ("clrl fp"); } |
| #endif |
| |
| /* Push the frame pointer register on the stack. */ |
| #ifdef MOTOROLA |
| #define PUSH_FRAME_PTR \ |
| asm ("move.l fp, -(sp)"); |
| #else |
| #define PUSH_FRAME_PTR \ |
| asm ("movel fp, -(sp)"); |
| #endif |
| |
| /* Copy the top-of-stack to the frame pointer register. */ |
| #ifdef MOTOROLA |
| #define POP_FRAME_PTR \ |
| asm ("move.l (sp), fp"); |
| #else |
| #define POP_FRAME_PTR \ |
| asm ("movl (sp), fp"); |
| #endif |
| |
| /* After KDB is entered by a fault, push all registers |
| that GDB thinks about (all NUM_REGS of them), |
| so that they appear in order of ascending GDB register number. |
| The fault code will be on the stack beyond the last register. */ |
| |
| #ifdef MOTOROLA |
| #define PUSH_REGISTERS \ |
| { asm ("clr.w -(sp)"); \ |
| asm ("pea (10,sp)"); \ |
| asm ("movem $ 0xfffe,-(sp)"); } |
| #else |
| #define PUSH_REGISTERS \ |
| { asm ("clrw -(sp)"); \ |
| asm ("pea 10(sp)"); \ |
| asm ("movem $ 0xfffe,-(sp)"); } |
| #endif |
| |
| /* Assuming the registers (including processor status) have been |
| pushed on the stack in order of ascending GDB register number, |
| restore them and return to the address in the saved PC register. */ |
| |
| #ifdef MOTOROLA |
| #define POP_REGISTERS \ |
| { asm ("subi.l $8,28(sp)"); \ |
| asm ("movem (sp),$ 0xffff"); \ |
| asm ("rte"); } |
| #else |
| #define POP_REGISTERS \ |
| { asm ("subil $8,28(sp)"); \ |
| asm ("movem (sp),$ 0xffff"); \ |
| asm ("rte"); } |
| #endif |