97 lines
3.2 KiB
C
97 lines
3.2 KiB
C
|
/* Parameters for execution on a Sun, 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
|
|||
|
|
|
|||
|
|
/* 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 0x2800
|
|||
|
|
|
|||
|
|
/* Enable use of alternate code for Sun's format of core dump file. */
|
|||
|
|
|
|||
|
|
#define NEW_SUN_CORE
|
|||
|
|
|
|||
|
|
/* Do implement the attach and detach commands. */
|
|||
|
|
|
|||
|
|
#define ATTACH_DETACH
|
|||
|
|
|
|||
|
|
/* Override copies of {fetch,store}_inferior_registers in infptrace.c. */
|
|||
|
|
#define FETCH_INFERIOR_REGISTERS
|
|||
|
|
|
|||
|
|
/* 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; }
|
|||
|
|
|
|||
|
|
/* 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"); }
|