2003-03-10 Andrew Cagney <cagney@redhat.com>

[deliverable/binutils-gdb.git] / gdb / regcache.h

diff --git a/gdb/regcache.h b/gdb/regcache.h
index ee1050536056de08f98bd908332c3aa7a3311f6d..dd629383bebe1b00dad3662ab7d6ef21fe028a06 100644 (file)
--- a/gdb/regcache.h
+++ b/gdb/regcache.h
@@ -155,15 +155,19 @@ extern int max_register_size (struct gdbarch *gdbarch);
 extern int register_size (struct gdbarch *gdbarch, int regnum);
 
 
-/* Save/restore a register cache.  The registers saved/restored is
-   determined by the save_reggroup and restore_reggroup (although you
-   can't restore a register that wasn't saved as well :-).  You can
-   only save to a read-only cache (default from regcache_xmalloc())
-   from a live cache and you can only restore from a read-only cache
-   to a live cache.  */
-
-extern void regcache_save (struct regcache *dst, struct regcache *src);
-extern void regcache_restore (struct regcache *dst, struct regcache *src);
+/* Save/restore a register cache.  The set of registers saved /
+   restored into the DST regcache determined by the save_reggroup /
+   restore_reggroup respectively.  COOKED_READ returns zero iff the
+   register's value can't be returned.  */
+
+typedef int (regcache_cooked_read_ftype) (void *src, int regnum, void *buf);
+
+extern void regcache_save (struct regcache *dst,
+                          regcache_cooked_read_ftype *cooked_read,
+                          void *src);
+extern void regcache_restore (struct regcache *dst,
+                             regcache_cooked_read_ftype *cooked_read,
+                             void *src);
 
 /* Copy/duplicate the contents of a register cache.  By default, the
    operation is pass-through.  Writes to DST and reads from SRC will