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[/] [or1k/] [trunk/] [gdb-5.0/] [gdb/] [config/] [m68k/] [tm-m68kv4.h] - Blame information for rev 1765

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1 106 markom
/* Target definitions for GDB on a Motorola 680x0 running SVR4.
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   (Commodore Amiga with amix or Atari TT with ASV)
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   Copyright (C) 1991, 1995 Free Software Foundation, Inc.
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   Written by Fred Fish at Cygnus Support (fnf@cygint)
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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., 59 Temple Place - Suite 330,
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   Boston, MA 02111-1307, USA.  */
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/* Define BPT_VECTOR if it is different than the default.
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   This is the vector number used by traps to indicate a breakpoint. */
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#define BPT_VECTOR 0x1
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/* How much to decrement the PC after a trap.  Depends on kernel. */
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#define DECR_PC_AFTER_BREAK 0   /* No decrement required */
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/* Use the alternate method of determining valid frame chains. */
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#define FRAME_CHAIN_VALID(fp,fi) func_frame_chain_valid (fp, fi)
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#include "tm-sysv4.h"
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#include "m68k/tm-m68k.h"
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/* Offsets (in target ints) into jmp_buf.  Not defined in any system header
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   file, so we have to step through setjmp/longjmp with a debugger and figure
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   them out.  As a double check, note that <setjmp> defines _JBLEN as 13,
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   which matches the number of elements we see saved by setjmp(). */
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#define JB_ELEMENT_SIZE sizeof(int)     /* jmp_buf[_JBLEN] is array of ints */
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#define JB_D2   0
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#define JB_D3   1
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#define JB_D4   2
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#define JB_D5   3
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#define JB_D6   4
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#define JB_D7   5
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#define JB_A1   6
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#define JB_A2   7
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#define JB_A3   8
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#define JB_A4   9
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#define JB_A5   10
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#define JB_A6   11
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#define JB_A7   12
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#define JB_PC   JB_A1           /* Setjmp()'s return PC saved in A1 */
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/* Figure out where the longjmp will land.  Slurp the args out of the stack.
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   We expect the first arg to be a pointer to the jmp_buf structure from which
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   we extract the pc (JB_PC) that we will land at.  The pc is copied into ADDR.
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   This routine returns true on success */
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#define GET_LONGJMP_TARGET(ADDR) get_longjmp_target(ADDR)
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extern int get_longjmp_target PARAMS ((CORE_ADDR *));
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/* Convert a DWARF register number to a gdb REGNUM.  */
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#define DWARF_REG_TO_REGNUM(num) ((num) < 16 ? (num) : (num)+FP0_REGNUM-16)

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