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/* Macro definitions for GDB on a Commodore Amiga running SVR4 (amix).
Copyright (C) 1991, Free Software Foundation, Inc.
Written by Fred Fish at Cygnus Support (fnf@cygint)
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. */
/* All Amiga's (so far) running UNIX have come standard with the floating
point coprocessor. */
#define HAVE_68881
/* Define BPT_VECTOR if it is different than the default.
This is the vector number used by traps to indicate a breakpoint. */
#define BPT_VECTOR 0x1
/* How much to decrement the PC after a trap. Depends on kernel. */
#define DECR_PC_AFTER_BREAK 0 /* No decrement required */
/* Address of end of stack space. Actually one byte past it.
This value is typically very OS dependent.
FIXME: Check to see if SVR4 offers some machine independent way
of discovering this value and use it if so, and if we need it. */
/* #define STACK_END_ADDR 0xc0800000 */
/* Use the alternate method of determining valid frame chains. */
#define FRAME_CHAIN_VALID_ALTERNATE
#include "tm-sysv4.h"
#include "tm-68k.h"
/* Offsets (in target ints) into jmp_buf. Not defined in any system header
file, so we have to step through setjmp/longjmp with a debugger and figure
them out. As a double check, note that <setjmp> defines _JBLEN as 13,
which matches the number of elements we see saved by setjmp(). */
#define JB_ELEMENT_SIZE sizeof(int) /* jmp_buf[_JBLEN] is array of ints */
#define JB_D2 0
#define JB_D3 1
#define JB_D4 2
#define JB_D5 3
#define JB_D6 4
#define JB_D7 5
#define JB_A1 6
#define JB_A2 7
#define JB_A3 8
#define JB_A4 9
#define JB_A5 10
#define JB_A6 11
#define JB_A7 12
#define JB_PC JB_A1 /* Setjmp()'s return PC saved in A1 */
/* Figure out where the longjmp will land. Slurp the args out of the stack.
We expect the first arg to be a pointer to the jmp_buf structure from which
we extract the pc (JB_PC) that we will land at. The pc is copied into ADDR.
This routine returns true on success */
#define GET_LONGJMP_TARGET(ADDR) get_longjmp_target(ADDR)
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