From: Markus Metzger <markus.t.metzger@intel.com>
Date: Fri, 4 Sep 2015 08:33:05 +0000 (+0200)
Subject: btrace: add missing NO_HISTORY
X-Git-Tag: users/hjl/linux/release/2.25.51.0.4~1^2~26^2~47
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=cf8f8f0c4244b4980ce538680f81de3738ba08d6;p=thirdparty%2Fbinutils-gdb.git

btrace: add missing NO_HISTORY

If a single-step ended right at the end of the execution history, we forgot
to announce that.  Fix it.

gdb/
	* record-btrace.c (record_btrace_single_step_forward): Return
	NO_HISTORY if a step brings us to the end of the execution history.
---

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index e50557f41a4..3fafdeff629 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,8 @@
+2015-09-18  Markus Metzger  <markus.t.metzger@intel.com>
+
+	* record-btrace.c (record_btrace_single_step_forward): Return
+	NO_HISTORY if a step brings us to the end of the execution history.
+
 2015-09-18  Markus Metzger  <markus.t.metzger@intel.com>
 
 	* record-btrace.c (record_btrace_step_thread): Move breakpoint check
diff --git a/gdb/record-btrace.c b/gdb/record-btrace.c
index 5e8c1d40285..fcd4351f6b6 100644
--- a/gdb/record-btrace.c
+++ b/gdb/record-btrace.c
@@ -2061,7 +2061,10 @@ record_btrace_single_step_forward (struct thread_info *tp)
 
   /* We stop replaying if we reached the end of the trace.  */
   if (btrace_insn_cmp (replay, &end) == 0)
-    record_btrace_stop_replaying (tp);
+    {
+      record_btrace_stop_replaying (tp);
+      return btrace_step_no_history ();
+    }
 
   return btrace_step_spurious ();
 }