[deliverable/binutils-gdb.git] / gdb / tm-amix.h

/* 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)
Commit	Line	Data
	1	/* Macro definitions for GDB on a Commodore Amiga running SVR4 (amix).
	2	Copyright (C) 1991, Free Software Foundation, Inc.
	3	Written by Fred Fish at Cygnus Support (fnf@cygint)
	4
	5	This file is part of GDB.
	6
	7	This program is free software; you can redistribute it and/or modify
	8	it under the terms of the GNU General Public License as published by
	9	the Free Software Foundation; either version 2 of the License, or
	10	(at your option) any later version.
	11
	12	This program is distributed in the hope that it will be useful,
	13	but WITHOUT ANY WARRANTY; without even the implied warranty of
	14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	15	GNU General Public License for more details.
	16
	17	You should have received a copy of the GNU General Public License
	18	along with this program; if not, write to the Free Software
	19	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
	20
	21	/* All Amiga's (so far) running UNIX have come standard with the floating
	22	point coprocessor. */
	23
	24	#define HAVE_68881
	25
	26	/* Define BPT_VECTOR if it is different than the default.
	27	This is the vector number used by traps to indicate a breakpoint. */
	28
	29	#define BPT_VECTOR 0x1
	30
	31	/* How much to decrement the PC after a trap. Depends on kernel. */
	32
	33	#define DECR_PC_AFTER_BREAK 0 /* No decrement required */
	34
	35	/* Address of end of stack space. Actually one byte past it.
	36	This value is typically very OS dependent.
	37	FIXME: Check to see if SVR4 offers some machine independent way
	38	of discovering this value and use it if so, and if we need it. */
	39
	40	/* #define STACK_END_ADDR 0xc0800000 */
	41
	42	/* Use the alternate method of determining valid frame chains. */
	43
	44	#define FRAME_CHAIN_VALID_ALTERNATE
	45
	46	#include "tm-sysv4.h"
	47	#include "tm-68k.h"
	48
	49	/* Offsets (in target ints) into jmp_buf. Not defined in any system header
	50	file, so we have to step through setjmp/longjmp with a debugger and figure
	51	them out. As a double check, note that <setjmp> defines _JBLEN as 13,
	52	which matches the number of elements we see saved by setjmp(). */
	53
	54	#define JB_ELEMENT_SIZE sizeof(int) /* jmp_buf[_JBLEN] is array of ints */
	55
	56	#define JB_D2 0
	57	#define JB_D3 1
	58	#define JB_D4 2
	59	#define JB_D5 3
	60	#define JB_D6 4
	61	#define JB_D7 5
	62	#define JB_A1 6
	63	#define JB_A2 7
	64	#define JB_A3 8
	65	#define JB_A4 9
	66	#define JB_A5 10
	67	#define JB_A6 11
	68	#define JB_A7 12
	69
	70	#define JB_PC JB_A1 /* Setjmp()'s return PC saved in A1 */
	71
	72	/* Figure out where the longjmp will land. Slurp the args out of the stack.
	73	We expect the first arg to be a pointer to the jmp_buf structure from which
	74	we extract the pc (JB_PC) that we will land at. The pc is copied into ADDR.
	75	This routine returns true on success */
	76
	77	#define GET_LONGJMP_TARGET(ADDR) get_longjmp_target(ADDR)