2003-01-27 Andrew Cagney <ac131313@redhat.com>

[deliverable/binutils-gdb.git] / gdb / delta68-nat.c

diff --git a/gdb/delta68-nat.c b/gdb/delta68-nat.c
index ed31e58186b04cdf5ad5389bac5c0c8a9eb6281d..e74a51bf0480120b879d06c43a2a8e0518d664e1 100644 (file)
--- a/gdb/delta68-nat.c
+++ b/gdb/delta68-nat.c
@@ -1,7 +1,27 @@
+/* Functions specific to running gdb native on a Motorola Delta Series sysV68.
+   Copyright 1993, 1996, 1998, 2000 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/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>
@@ -13,18 +33,16 @@
 /* Return the address in the core dump or inferior of register REGNO.
    BLOCKEND is the address of the end of the user structure.  */
 
-unsigned int
-register_addr (regno, blockend)
-     int       regno;
-     int       blockend;
+CORE_ADDR
+register_addr (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 };
+  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; 
+  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]
+    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)
@@ -33,20 +51,24 @@ register_addr (regno, blockend)
     return offsetof (struct user, u_fpu.regs.iaddr);
   else
     {
-      fprintf (stderr, "\
+      fprintf_unfiltered (gdb_stderr, "\
 Internal error: invalid register number %d in REGISTER_U_ADDR\n",
-              regno);
+                         regno);
       return blockend;
     }
 }
 
 CORE_ADDR kernel_u_addr;
-static struct nlist nl[] = {{ "_u", -1, }, { (char *) 0, }};
 
 /* Read the value of the u area from the kernel.  */
-void _initialize_kernel_u_addr ()
+void
+_initialize_delta68_nat (void)
 {
-  if (nlist ("/sysV68", nl) == 0)
+  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
     {
@@ -54,3 +76,15 @@ void _initialize_kernel_u_addr ()
       exit (1);
     }
 }
+
+clear_insn_cache (void)
+{
+#ifdef MCT_TEXT                        /* in sys/signal.h on sysV68 R3V7.1 */
+  memctl (0, 4096, MCT_TEXT);
+#endif
+}
+
+kernel_u_size (void)
+{
+  return sizeof (struct user);
+}