Don't throw an error in "show mpx bound" implementation

"show" functions should not throw an exception in part because it causes
the output of the commands "info set" and "show" to get truncated.

This fixes the following fails:

    FAIL: gdb.base/default.exp: info set
    FAIL: gdb.base/default.exp: show

gdb/ChangeLog:

	* i386-tdep.c (i386_mpx_info_bounds): Don't call error, instead
	use printf_unfiltered.
	(set_mpx_cmd): Add missing trailing space to command string
	literal.
	(_initialize_i386_tdep): Give the "mpx" prefix command its
	correct name.

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 201af51..5131927 100644 (file)
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,12 @@
+2015-07-06  Patrick Palka  <patrick@parcs.ath.cx>
+
+       * i386-tdep.c (i386_mpx_info_bounds): Don't call error, instead
+       use printf_unfiltered.
+       (set_mpx_cmd): Add missing trailing space to command string
+       literal.
+       (_initialize_i386_tdep): Give the "mpx" prefix command its
+       correct name.
+
 2015-07-02  Kevin Buettner  <kevinb@redhat.com>
 
        * rx-tdep.c (RX_USP_REGNUM, RX_BPC_REGNUM): New constants.

diff --git a/gdb/i386-tdep.c b/gdb/i386-tdep.c
index 85e433e..371a282 100644 (file)
--- a/gdb/i386-tdep.c
+++ b/gdb/i386-tdep.c
@@ -8775,11 +8775,17 @@ i386_mpx_info_bounds (char *args, int from_tty)
   struct type *data_ptr_type = builtin_type (gdbarch)->builtin_data_ptr;
 
   if (!i386_mpx_enabled ())
-    error (_("Intel(R) Memory Protection Extensions not\
- supported on this target."));
+    {
+      printf_unfiltered (_("Intel(R) Memory Protection Extensions not "
+                          "supported on this target.\n"));
+      return;
+    }
 
   if (args == NULL)
-    error (_("Address of pointer variable expected."));
+    {
+      printf_unfiltered (_("Address of pointer variable expected.\n"));
+      return;
+    }
 
   addr = parse_and_eval_address (args);
 
@@ -8854,7 +8860,7 @@ static struct cmd_list_element *mpx_set_cmdlist, *mpx_show_cmdlist;
 static void
 set_mpx_cmd (char *args, int from_tty)
 {
-  help_list (mpx_set_cmdlist, "set mpx", all_commands, gdb_stdout);
+  help_list (mpx_set_cmdlist, "set mpx ", all_commands, gdb_stdout);
 }
 
 /* Helper function for the CLI commands.  */
@@ -8899,7 +8905,7 @@ is \"default\"."),
 
   add_prefix_cmd ("mpx", class_support, set_mpx_cmd, _("\
 Set Intel(R) Memory Protection Extensions specific variables."),
-                 &mpx_set_cmdlist, "set tdesc ",
+                 &mpx_set_cmdlist, "set mpx ",
                  0 /* allow-unknown */, &setlist);
 
   /* Add "mpx" prefix for the show commands.  */