1 files changed, 91 insertions, 0 deletions
diff --git a/gdb/delta68-nat.c b/gdb/delta68-nat.c
new file mode 100644
index 00000000000..3995b235e04
--- /dev/null
+++ b/gdb/delta68-nat.c
@@ -0,0 +1,91 @@
+/* Functions specific to running gdb native on a Motorola Delta Series sysV68.
+   Copyright (C) 1993, 1997-98, 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.  */
+
+#include "defs.h"
+#include <sys/signal.h>	/* for MAXSIG in sys/user.h */
+#include <sys/types.h>	/* for ushort in sys/dir.h */
+#include <sys/dir.h>	/* for struct direct in sys/user.h */
+#include <sys/user.h>
+
+#include <nlist.h>
+
+#if !defined (offsetof)
+#define offsetof(TYPE, MEMBER) ((unsigned long) &((TYPE *)0)->MEMBER)
+#endif
+
+/* Return the address in the core dump or inferior of register REGNO.
+   BLOCKEND is the address of the end of the user structure.  */
+
+CORE_ADDR
+register_addr (regno, blockend)
+     int	regno;
+     CORE_ADDR	blockend;
+{
+  static int	sysv68reg[] =
+    { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, -1, 15, 16 };
+
+  if (regno >= 0 && regno < sizeof(sysv68reg) / sizeof(sysv68reg[0]))
+    return blockend + sysv68reg[regno] * 4; 
+  else if (regno < FPC_REGNUM)
+    return offsetof (struct user, u_fpu.regs.reg[regno - FP0_REGNUM][0]);
+  else if (regno == FPC_REGNUM)
+    return offsetof (struct user, u_fpu.regs.control);
+  else if (regno == FPS_REGNUM)
+    return offsetof (struct user, u_fpu.regs.status);
+  else if (regno == FPI_REGNUM)
+    return offsetof (struct user, u_fpu.regs.iaddr);
+  else
+    {
+      fprintf_unfiltered (gdb_stderr, "\
+Internal error: invalid register number %d in REGISTER_U_ADDR\n",
+	       regno);
+      return blockend;
+    }
+}
+
+CORE_ADDR kernel_u_addr;
+
+/* Read the value of the u area from the kernel.  */
+void
+_initialize_delta68_nat ()
+{
+  struct nlist nl[2];
+
+  nl[0].n_name = "u";
+  nl[1].n_name = NULL;
+  if (nlist ("/sysV68", nl) == 0 && nl[0].n_scnum != 0)
+    kernel_u_addr = nl[0].n_value;
+  else
+    {
+      perror ("Cannot get kernel u area address");
+      exit (1);
+    }
+}
+
+clear_insn_cache ()
+{
+#ifdef MCT_TEXT /* in sys/signal.h on sysV68 R3V7.1 */
+  memctl(0, 4096, MCT_TEXT);
+#endif
+}
+
+kernel_u_size ()
+{
+  return sizeof (struct user);
+}