-/* Parameters for execution on VxWorks 68k's, for GDB, the GNU debugger.
- Copyright (C) 1986, 1987, 1989, 1991 Free Software Foundation, Inc.
+/* Target machine description for VxWorks 68k's, for GDB, the GNU debugger.
+ Copyright 1986, 1987, 1989, 1991, 1992 Free Software Foundation, Inc.
Contributed by Cygnus Support.
This file is part of GDB.
#define DEFAULT_PROMPT "(vxgdb) "
-/* Kludge... */
-#include "tm-sun3.h"
-
-#undef SAVED_PC_AFTER_CALL
-#define SAVED_PC_AFTER_CALL(frame) \
- read_memory_integer (read_register (SP_REGNUM), 4)
+#define HAVE_68881
/* We have more complex, useful breakpoints on the target. */
-#undef DECR_PC_AFTER_BREAK
#define DECR_PC_AFTER_BREAK 0
+#include "tm-68k.h"
+
+/* Define this if the C compiler puts an underscore at the front
+ of external names before giving them to the linker. */
+
+#define NAMES_HAVE_UNDERSCORE
+
/* We are guaranteed to have a zero frame pointer at bottom of stack, too. */
#undef FRAME_CHAIN
#undef FRAME_CHAIN_VALID
never fetched anything), we are at the top of the stack. */
#define FRAME_CHAIN_VALID(chain, thisframe) (chain != 0)
+
+/* FIXME, Longjmp information stolen from Sun-3 config. Dunno if right. */
+/* Offsets (in target ints) into jmp_buf. Not defined by Sun, but at least
+ documented in a comment in <machine/setjmp.h>! */
+
+#define JB_ELEMENT_SIZE 4
+
+#define JB_ONSSTACK 0
+#define JB_SIGMASK 1
+#define JB_SP 2
+#define JB_PC 3
+#define JB_PSL 4
+#define JB_D2 5
+#define JB_D3 6
+#define JB_D4 7
+#define JB_D5 8
+#define JB_D6 9
+#define JB_D7 10
+#define JB_A2 11
+#define JB_A3 12
+#define JB_A4 13
+#define JB_A5 14
+#define JB_A6 15
+
+/* 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)