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- /* Parameters for execution on a Gould NP1, for GDB, the GNU debugger.
- Copyright 1986, 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
-
- /* Get rid of any system-imposed stack limit if possible. */
- #define SET_STACK_LIMIT_HUGE
-
- /* Address of U in kernel space */
- #define KERNEL_U_ADDR 0x7fffc000
-
- /* This is a piece of magic that is given a register number REGNO
- and as BLOCKEND the address in the system of the end of the user structure
- and stores in ADDR the address in the kernel or core dump
- of that register. */
- #define REGISTER_U_ADDR(addr, blockend, regno) { \
- addr = blockend + regno * 4; \
- if (regno == VE_REGNUM) addr = blockend - 9 * 4; \
- if (regno == PC_REGNUM) addr = blockend - 8 * 4; \
- if (regno == PS_REGNUM) addr = blockend - 7 * 4; \
- if (regno == FP_REGNUM) addr = blockend - 6 * 4; \
- if (regno >= V1_REGNUM) \
- addr = blockend + 16 * 4 + (regno - V1_REGNUM) * VR_SIZE; \
- }
-
- /* Don't try to write the frame pointer. */
- #define CANNOT_STORE_REGISTER(regno) ((regno) == FP_REGNUM)
-
- /*
- * No KDB support, Yet! */
- /* Interface definitions for kernel debugger KDB. */
-
- /* 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. */
-
- #define INIT_STACK(beg, end) \
- { asm (".globl end"); \
- asm ("movel $ end, sp"); \
- asm ("clrl fp"); }
-
- /* Push the frame pointer register on the stack. */
- #define PUSH_FRAME_PTR \
- asm ("movel fp, -(sp)");
-
- /* Copy the top-of-stack to the frame pointer register. */
- #define POP_FRAME_PTR \
- asm ("movl (sp), fp");
-
- /* 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. */
-
- #define PUSH_REGISTERS \
- { asm ("clrw -(sp)"); \
- asm ("pea 10(sp)"); \
- asm ("movem $ 0xfffe,-(sp)"); }
-
- /* 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. */
-
- #define POP_REGISTERS \
- { asm ("subil $8,28(sp)"); \
- asm ("movem (sp),$ 0xffff"); \
- asm ("rte"); }
-