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- /* Parameters for execution on a Sony/NEWS, for GDB, the GNU debugger.
- Copyright 1987, 1989, 1992 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. */
-
- #define HOST_BYTE_ORDER BIG_ENDIAN
-
- #define HAVE_WAIT_STRUCT
-
- /* Get rid of any system-imposed stack limit if possible. */
-
- #define SET_STACK_LIMIT_HUGE
-
- /* 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 apparently dies on large alloca's -- roland@ai.mit.edu. */
- #define BROKEN_LARGE_ALLOCA
-
-
- /* 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
-