Copyright updates for 2007.

[thirdparty/binutils-gdb.git] / gdb / regcache.c

diff --git a/gdb/regcache.c b/gdb/regcache.c
index 8701d8dd3fb433a8729ed799dcb959ec09c5ea88..d7d809afa5be2fbd73b8fd715d9b41622b9a7645 100644 (file)
--- a/gdb/regcache.c
+++ b/gdb/regcache.c
@@ -1,7 +1,7 @@
 /* Cache and manage the values of registers for GDB, the GNU debugger.
 
-   Copyright (C) 1986, 1987, 1989, 1991, 1994, 1995, 1996, 1998, 2000,
-   2001, 2002, 2004 Free Software Foundation, Inc.
+   Copyright (C) 1986, 1987, 1989, 1991, 1994, 1995, 1996, 1998, 2000, 2001,
+   2002, 2004, 2007 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -186,7 +186,11 @@ struct regcache
      full [0 .. NUM_REGS + NUM_PSEUDO_REGS) while a read/write
      register cache can only hold [0 .. NUM_REGS).  */
   gdb_byte *registers;
-  gdb_byte *register_valid_p;
+  /* Register cache status:
+     register_valid_p[REG] == 0 if REG value is not in the cache
+                            > 0 if REG value is in the cache
+                            < 0 if REG value is permanently unavailable */
+  signed char *register_valid_p;
   /* Is this a read-only cache?  A read-only cache is used for saving
      the target's register state (e.g, across an inferior function
      call or just before forcing a function return).  A read-only