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Re: [PATCH 2/4] x86-dregs: Print debug registers one per line


On 2017-06-21 22:31, Sergio Durigan Junior wrote:
On Wednesday, June 21 2017, Simon Marchi wrote:

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.

Agreed, one per line sounds better to me.


gdb/ChangeLog:

	* nat/x86-dregs.c (x86_show_dr): Print registers one per line.
---
 gdb/nat/x86-dregs.c | 16 ++++++----------
 1 file changed, 6 insertions(+), 10 deletions(-)

diff --git a/gdb/nat/x86-dregs.c b/gdb/nat/x86-dregs.c
index 8c8adfa..58b1179 100644
--- 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));
                                           ^^^

Space after comma?

Yep, thanks.

+ 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]);
     }
 }

--
2.7.4

LGTM.  Thanks,

Thanks!


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