x86-dregs: Print debug registers one per line

This get around this warning given by clang...

  /home/emaisin/src/binutils-gdb/gdb/nat/x86-dregs.c:209:7: error: variable 'i' is incremented both in the loop header and in the loop body [-Werror,-Wfor-loop-analysis]
        i++;
        ^
  /home/emaisin/src/binutils-gdb/gdb/nat/x86-dregs.c:199:32: note: incremented here
    ALL_DEBUG_ADDRESS_REGISTERS (i)
                               ^

... I decided in the end to simply print the debug registers one per
line.  I don't think it particularly helps readability to have them two
per line anyway.

gdb/ChangeLog:

	* nat/x86-dregs.c (x86_show_dr): Print registers one per line.

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index bbbd5fb..7914b1d 100644 (file)
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,7 @@
+2017-06-25  Simon Marchi  <simon.marchi@ericsson.com>
+
+       * nat/x86-dregs.c (x86_show_dr): Print registers one per line.
+
 2017-06-23  Alan Hayward  <alan.hayward@arm.com>
 
        * xtensa-tdep.c (XTENSA_MAX_REGISTER_SIZE): Add.

diff --git a/gdb/nat/x86-dregs.c b/gdb/nat/x86-dregs.c
index 8c8adfa..478aa91 100644 (file)
--- a/gdb/nat/x86-dregs.c
+++ b/gdb/nat/x86-dregs.c
@@ -193,20 +193,16 @@ x86_show_dr (struct x86_debug_reg_state *state,
                              here.  */
                           : "??unknown??"))));
   debug_printf (":\n");
-  debug_printf ("\tCONTROL (DR7): %s          STATUS (DR6): %s\n",
-               phex (state->dr_control_mirror, 8),
-               phex (state->dr_status_mirror, 8));
+
+  debug_printf ("\tCONTROL (DR7): 0x%s\n", phex (state->dr_control_mirror, 8));
+  debug_printf ("\tSTATUS (DR6): 0x%s\n", phex (state->dr_status_mirror, 8));
+
   ALL_DEBUG_ADDRESS_REGISTERS (i)
     {
-      debug_printf ("\
-\tDR%d: addr=0x%s, ref.count=%d  DR%d: addr=0x%s, ref.count=%d\n",
+      debug_printf ("\tDR%d: addr=0x%s, ref.count=%d\n",
                    i, phex (state->dr_mirror[i],
                             x86_get_debug_register_length ()),
-                   state->dr_ref_count[i],
-                   i + 1, phex (state->dr_mirror[i + 1],
-                                x86_get_debug_register_length ()),
-                   state->dr_ref_count[i + 1]);
-      i++;
+                   state->dr_ref_count[i]);
     }
 }