* rs6000-tdep.c (rs6000_fetch_instruction)

[deliverable/binutils-gdb.git] / gdb / gdbserver / regcache.c

diff --git a/gdb/gdbserver/regcache.c b/gdb/gdbserver/regcache.c
index 548ed0cd302e4bf1c596356ca84f3f71e2b5b28e..a324d43df65ccdb6c2d38347bc7f45b564390679 100644 (file)
--- a/gdb/gdbserver/regcache.c
+++ b/gdb/gdbserver/regcache.c
@@ -1,11 +1,12 @@
 /* Register support routines for the remote server for GDB.
-   Copyright (C) 2001, 2002, 2004, 2005, 2007 Free Software Foundation, Inc.
+   Copyright (C) 2001, 2002, 2004, 2005, 2007, 2008
+   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
+   the Free Software Foundation; either version 3 of the License, or
    (at your option) any later version.
 
    This program is distributed in the hope that it will be useful,
@@ -14,9 +15,7 @@
    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., 51 Franklin Street, Fifth Floor,
-   Boston, MA 02110-1301, USA.  */
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 #include "server.h"
 #include "regdef.h"
@@ -87,12 +86,6 @@ regcache_invalidate ()
   for_each_inferior (&all_threads, regcache_invalidate_one);
 }
 
-int
-registers_length (void)
-{
-  return 2 * register_bytes;
-}
-
 void *
 new_register_cache (void)
 {
@@ -122,6 +115,15 @@ free_register_cache (void *regcache_p)
   free (regcache);
 }
 
+static void
+realloc_register_cache (struct inferior_list_entry *thread_p)
+{
+  struct thread_info *thread = (struct thread_info *) thread_p;
+
+  free_register_cache (inferior_regcache_data (thread));
+  set_inferior_regcache_data (thread, new_register_cache ());
+}
+
 void
 set_register_cache (struct reg *regs, int n)
 {
@@ -138,6 +140,13 @@ set_register_cache (struct reg *regs, int n)
     }
 
   register_bytes = offset / 8;
+
+  /* Make sure PBUFSIZ is large enough to hold a full register packet.  */
+  if (2 * register_bytes + 32 > PBUFSIZ)
+    fatal ("Register packet size exceeds PBUFSIZ.");
+
+  /* Re-allocate all pre-existing register caches.  */
+  for_each_inferior (&all_threads, realloc_register_cache);
 }
 
 void