2001-11-30 Pierre Muller <muller@ics.u-strasbg.fr>

* findvar.c (locate_var_value): Specify in which register a register
	variable is stored.

gdb/ChangeLog

@@ -1,3 +1,8 @@
+2001-11-30  Pierre Muller  <muller@ics.u-strasbg.fr>
+
+	* findvar.c (locate_var_value): Specify in which register a register
+	variable is stored.
+
 2001-11-30  Pierre Muller  <muller@ics.u-strasbg.fr>
 
 	* win32-nat.c (mappings): Correct position of XMM registers,

gdb/findvar.c

@@ -29,6 +29,7 @@
 #include "inferior.h"
 #include "target.h"
 #include "gdb_string.h"
+#include "gdb_assert.h"
 #include "floatformat.h"
 #include "symfile.h"		/* for overlay functions */
 #include "regcache.h"
@@ -869,9 +870,21 @@ locate_var_value (register struct symbol *var, struct frame_info *frame)
   switch (VALUE_LVAL (lazy_value))
     {
     case lval_register:
+	gdb_assert (REGISTER_NAME (VALUE_REGNO (lazy_value)) != NULL
+	            && *REGISTER_NAME (VALUE_REGNO (lazy_value)) != '\0');
+      error("Address requested for identifier "
+	    "\"%s\" which is in register $%s",
+            SYMBOL_SOURCE_NAME (var), 
+	    REGISTER_NAME (VALUE_REGNO (lazy_value)));
+      break;
+
     case lval_reg_frame_relative:
-      error ("Address requested for identifier \"%s\" which is in a register.",
-	     SYMBOL_SOURCE_NAME (var));
+	gdb_assert (REGISTER_NAME (VALUE_FRAME_REGNUM (lazy_value)) != NULL
+	            && *REGISTER_NAME (VALUE_FRAME_REGNUM (lazy_value)) != '\0');
+      error("Address requested for identifier "
+	    "\"%s\" which is in frame register $%s",
+            SYMBOL_SOURCE_NAME (var), 
+	    REGISTER_NAME (VALUE_FRAME_REGNUM (lazy_value)));
       break;
 
     default: