Print <unavailable> for unavailable registers in info register output.

  https://sourceware.org/ml/gdb-patches/2013-08/msg00171.html

gdb/ChangeLog

	* infcmd.c (default_print_one_register_info): Use val_print to
	print all values even optimized out or unavailable ones.  Don't
	try to print a raw form of optimized out or unavailable values.

gdb/testsuite/ChangeLog

	* gdb.trace/unavailable.exp (gdb_unavailable_registers_test):
	Expect <unavailable> pattern.

1 files changed, 10 insertions, 15 deletions

diff --git a/gdb/infcmd.c b/gdb/infcmd.c
index 4ad8ad3..d678e9f 100644
--- a/gdb/infcmd.c
+++ b/gdb/infcmd.c
@@ -2028,21 +2028,13 @@ default_print_one_register_info (struct ui_file *file,
 				 struct value *val)
 {
   struct type *regtype = value_type (val);
+  int print_raw_format;
 
   fputs_filtered (name, file);
   print_spaces_filtered (15 - strlen (name), file);
 
-  if (!value_entirely_available (val))
-    {
-      fprintf_filtered (file, "*value not available*\n");
-      return;
-    }
-  else if (value_optimized_out (val))
-    {
-      val_print_optimized_out (val, file);
-      fprintf_filtered (file, "\n");
-      return;
-    }
+  print_raw_format = (value_entirely_available (val)
+		      && !value_optimized_out (val));
 
   /* If virtual format is floating, print it that way, and in raw
      hex.  */
@@ -2062,9 +2054,12 @@ default_print_one_register_info (struct ui_file *file,
 		 value_embedded_offset (val), 0,
 		 file, 0, val, &opts, current_language);
 
-      fprintf_filtered (file, "\t(raw ");
-      print_hex_chars (file, valaddr, TYPE_LENGTH (regtype), byte_order);
-      fprintf_filtered (file, ")");
+      if (print_raw_format)
+	{
+	  fprintf_filtered (file, "\t(raw ");
+	  print_hex_chars (file, valaddr, TYPE_LENGTH (regtype), byte_order);
+	  fprintf_filtered (file, ")");
+	}
     }
   else
     {
@@ -2079,7 +2074,7 @@ default_print_one_register_info (struct ui_file *file,
 		 file, 0, val, &opts, current_language);
       /* If not a vector register, print it also according to its
 	 natural format.  */
-      if (TYPE_VECTOR (regtype) == 0)
+      if (print_raw_format && TYPE_VECTOR (regtype) == 0)
 	{
 	  get_user_print_options (&opts);
 	  opts.deref_ref = 1;