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Diffstat (limited to 'gdb/xm-np1.h')
| -rw-r--r-- | gdb/xm-np1.h | 99 |
1 files changed, 99 insertions, 0 deletions
diff --git a/gdb/xm-np1.h b/gdb/xm-np1.h new file mode 100644 index 0000000..0608e36 --- /dev/null +++ b/gdb/xm-np1.h @@ -0,0 +1,99 @@ +/* Parameters for execution on a Gould NP1, for GDB, the GNU debugger. + Copyright (C) 1986, 1987, 1989 Free Software Foundation, Inc. + +This file is part of GDB. + +GDB 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 1, or (at your option) +any later version. + +GDB 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 GDB; see the file COPYING. If not, write to +the Free Software Foundation, 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) + +#define MISSING_VPRINTF + +/* + * 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"); } |