129 lines
3.8 KiB
C
129 lines
3.8 KiB
C
/* Copyright (C) 1986, 1987, 1988, 1989, 1990 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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/* This is currently for a 88000 running DGUX. If other 88k ports are
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done, OS-specific stuff should be moved (see tm-68k.h, for example). */
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/* g++ support is not yet included. */
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#define HOST_BYTE_ORDER BIG_ENDIAN
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#if !defined (USG)
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#define USG 1
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#endif
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/* DGUX has bcopy(), etc. */
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#define USG_UTILS 0
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#include <sys/param.h>
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#define vfork() fork()
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#define index strchr
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#define rindex strrchr
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#define getwd(BUF) getcwd(BUF,MAXPATHLEN);
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#define bzero(ptr,count) (memset((ptr),0,(count)))
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#define bcopy(src,dst,count) (memcpy((dst),(src),(count)))
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#define bcmp(left,right,count) (memcmp((right),(left),(count)))
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#ifdef __GNUC__
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#define memcpy __builtin_memcpy
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/* gcc doesn't have this, at least not gcc 1.92. */
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/* #define memset __builtin_memset */
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#define strcmp __builtin_strcmp
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#endif
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#ifdef DGUX
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#define x_foff _x_x._x_offset
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#define x_fname _x_name
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#define USER ptrace_user
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#define _BSD_WAIT_FLAVOR
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#endif
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#define HAVE_TERMIO
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#ifndef USIZE
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#define USIZE 2048
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#endif
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#define NBPG NBPC
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#define UPAGES USIZE
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#define HAVE_GETPAGESIZE
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/* Get rid of any system-imposed stack limit if possible. */
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#define SET_STACK_LIMIT_HUGE
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/* number of traps that happen between exec'ing the shell
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* to run an inferior, and when we finally get to
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* the inferior code. This is 2 on most implementations.
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*/
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#define START_INFERIOR_TRAPS_EXPECTED 2
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/* This is the amount to subtract from u.u_ar0
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to get the offset in the core file of the register values. */
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/* Since registers r0 through r31 are stored directly in the struct ptrace_user,
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(for m88k BCS)
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the ptrace_user offsets are sufficient and KERNEL_U_ADDRESS can be 0 */
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#define KERNEL_U_ADDR 0
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#define REGISTER_U_ADDR(addr, blockend, regno) \
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(addr) = m88k_register_u_addr ((blockend),(regno));
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#define HAVE_WAIT_STRUCT
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#define FETCH_INFERIOR_REGISTERS
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/* Interface definitions for kernel debugger KDB. */
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/* Map machine fault codes into signal numbers.
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First subtract 0, divide by 4, then index in a table.
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Faults for which the entry in this table is 0
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are not handled by KDB; the program's own trap handler
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gets to handle then. */
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#define FAULT_CODE_ORIGIN 0
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#define FAULT_CODE_UNITS 4
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#define FAULT_TABLE \
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{ 0, 0, 0, 0, 0, 0, 0, 0, \
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0, 0, 0, 0, 0, 0, 0, 0, \
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0, 0, 0, 0, 0, 0, 0, 0}
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/* Start running with a stack stretching from BEG to END.
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BEG and END should be symbols meaningful to the assembler.
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This is used only for kdb. */
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#define INIT_STACK(beg, end) {}
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/* Push the frame pointer register on the stack. */
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#define PUSH_FRAME_PTR {}
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/* Copy the top-of-stack to the frame pointer register. */
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#define POP_FRAME_PTR {}
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/* After KDB is entered by a fault, push all registers
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that GDB thinks about (all NUM_REGS of them),
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so that they appear in order of ascending GDB register number.
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The fault code will be on the stack beyond the last register. */
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#define PUSH_REGISTERS {}
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/* Assuming the registers (including processor status) have been
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pushed on the stack in order of ascending GDB register number,
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restore them and return to the address in the saved PC register. */
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#define POP_REGISTERS {}
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