Initial creation of sourceware repositorygdb-4_18-branchpoint

1 files changed, 57 insertions, 0 deletions

diff --git a/gdb/config/m68k/tm-altos.h b/gdb/config/m68k/tm-altos.h
new file mode 100644
index 0000000..2d77fea
--- /dev/null
+++ b/gdb/config/m68k/tm-altos.h
@@ -0,0 +1,57 @@
+/* Target definitions for GDB on an Altos 3068 (m68k running SVR2)
+   Copyright 1987, 1989, 1991, 1993 Free Software Foundation, Inc.
+
+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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
+/* The child target can't deal with floating registers.  */
+#define CANNOT_STORE_REGISTER(regno) ((regno) >= FP0_REGNUM)
+
+/* 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 0xe
+
+/* Address of end of stack space.  */
+
+/*#define STACK_END_ADDR (0xffffff)*/
+#define STACK_END_ADDR (0x1000000)
+
+/* Amount PC must be decremented by after a breakpoint.
+   On the Altos, the kernel resets the pc to the trap instr */
+
+#define DECR_PC_AFTER_BREAK 0
+
+/* The only reason this is here is the tm-altos.h reference below.  It
+   was moved back here from tm-m68k.h.  FIXME? */
+
+#define SKIP_PROLOGUE(pc)   \
+{ register int op = read_memory_integer (pc, 2);	\
+  if (op == 0047126)					\
+    pc += 4;   /* Skip link #word */			\
+  else if (op == 0044016)				\
+    pc += 6;   /* Skip link #long */			\
+  /* Not sure why branches are here.  */		\
+  /* From tm-isi.h, tm-altos.h */			\
+  else if (op == 0060000)				\
+    pc += 4;   /* Skip bra #word */			\
+  else if (op == 00600377)				\
+    pc += 6;   /* skip bra #long */			\
+  else if ((op & 0177400) == 0060000)			\
+    pc += 2;   /* skip bra #char */			\
+}
+
+#include "m68k/tm-m68k.h"