From 05f3d3897172501ddbb0accecd2d1a5631bdc2d2 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Th=C3=A9ophile=20Bastian?= <contact@tobast.fr>
Date: Fri, 15 Jun 2018 02:16:42 +0200
Subject: [PATCH] benching: actually bench

---
 src/x86_64/Gstep.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/x86_64/Gstep.c b/src/x86_64/Gstep.c
index 84b37280..3759a6eb 100644
--- a/src/x86_64/Gstep.c
+++ b/src/x86_64/Gstep.c
@@ -27,6 +27,7 @@ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.  */
 
 #include "unwind_i.h"
 #include <signal.h>
+#include <libunwind.h>
 
 /* Recognise PLT entries such as:
      3bdf0: ff 25 e2 49 13 00 jmpq   *0x1349e2(%rip)
@@ -58,6 +59,8 @@ unw_step (unw_cursor_t *cursor)
   struct cursor *c = (struct cursor *) cursor;
   int ret, i;
 
+  struct timespec _timer_start = chrono_start();
+
 #if CONSERVATIVE_CHECKS
   int val = c->validate;
   c->validate = 1;
@@ -119,6 +122,7 @@ unw_step (unw_cursor_t *cursor)
           ret = unw_handle_signal_frame(cursor);
           if (ret < 0)
             {
+              chrono_end(_timer_start);
               Debug (2, "returning 0\n");
               return 0;
             }
@@ -203,6 +207,7 @@ unw_step (unw_cursor_t *cursor)
       if (DWARF_IS_NULL_LOC (c->dwarf.loc[RBP]))
         {
           ret = 0;
+          chrono_end(_timer_start);
           Debug (2, "NULL %%rbp loc, returning %d\n", ret);
           return ret;
         }
@@ -225,6 +230,7 @@ unw_step (unw_cursor_t *cursor)
       if (c->dwarf.ip == prev_ip && c->dwarf.cfa == prev_cfa)
         return -UNW_EBADFRAME;
     }
+  chrono_end(_timer_start);
   Debug (2, "returning %d\n", ret);
   return ret;
 }