[PATCH 2/8] Remove .gcno file when compilation does not success (PR driver/56469).

[marxin]

gcc/ChangeLog:

2017-04-19  Martin Liska  <mli...@suse.cz>

        PR driver/56469
        * coverage.c (coverage_remove_note_file): New function.
        * coverage.h: Declare the function.
        * toplev.c (finalize): Clean if an error has been seen.
---
 gcc/coverage.c | 12 ++++++++++++
 gcc/coverage.h |  1 +
 gcc/toplev.c   |  3 +++
 3 files changed, 16 insertions(+)

diff --git a/gcc/coverage.c b/gcc/coverage.c
index 0a949c3a9f7..53e379b3295 100644
--- a/gcc/coverage.c
+++ b/gcc/coverage.c
@@ -731,6 +731,18 @@ coverage_end_function (unsigned lineno_checksum, unsigned 
cfg_checksum)
     }
 }

 
+/* Remove coverage file if opened.  */
+
+void
+coverage_remove_note_file (void)
+{
+  if (bbg_file_name)
+    {
+      gcov_close ();
+      unlink (bbg_file_name);
+    }
+}
+
 /* Build a coverage variable of TYPE for function FN_DECL.  If COUNTER
    >= 0 it is a counter array, otherwise it is the function structure.  */
 
diff --git a/gcc/coverage.h b/gcc/coverage.h
index cde6aef1d76..90454c0ecba 100644
--- a/gcc/coverage.h
+++ b/gcc/coverage.h
@@ -24,6 +24,7 @@ along with GCC; see the file COPYING3.  If not see
 
 extern void coverage_init (const char *);
 extern void coverage_finish (void);
+extern void coverage_remove_note_file (void);
 
 /* Start outputting coverage information for the current
    function.  */
diff --git a/gcc/toplev.c b/gcc/toplev.c
index 54a4f05c9a1..f1384fc2fda 100644
--- a/gcc/toplev.c
+++ b/gcc/toplev.c
@@ -1915,6 +1915,9 @@ finalize (bool no_backend)
       stack_usage_file = NULL;
     }
 
+  if (seen_error ())
+    coverage_remove_note_file ();
+
   if (!no_backend)
     {
       statistics_fini ();
-- 
2.12.2