Atari support, from Uwe Seimet (seimet@chemie.uni-kl.de).

	* configure.in (m68*-atari-sysv4*): New configuration.
	(m68*-cbm-sysv4*): Use m68kv4 instead of amix.
	* m68k-tdep.c (R_PS): Define as R_SR if necessary.
	* config/m68k/m68kv4.mh, config/m68k/m68kv4.mt,
	config/m68k/tm-m68kv4.h, config/m68k/xm-m68kv4.h: New files.
	* config/m68k/amix.mh, config/m68k/amix.mt,
	config/m68k/tm-amix.h, config/m68k/xm-amix.h: Removed, superseded
	by m68kv4 files.

1 files changed, 66 insertions, 0 deletions

diff --git a/gdb/config/m68k/tm-m68kv4.h b/gdb/config/m68k/tm-m68kv4.h
new file mode 100644
index 0000000..c550fd9
--- /dev/null
+++ b/gdb/config/m68k/tm-m68kv4.h
@@ -0,0 +1,66 @@
+/* Target definitions for GDB on a Motorola 680x0 running SVR4.
+   (Commodore Amiga with amix or Atari TT with ASV)
+   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.  */
+
+/* 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 */
+
+/* Use the alternate method of determining valid frame chains. */
+
+#define FRAME_CHAIN_VALID_ALTERNATE
+
+#include "tm-sysv4.h"
+#include "m68k/tm-m68k.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)