comment ggc_handle_finalizers

* ggc-page.c (ggc_handle_finalizers): Add comment. From-SVN: r210569

comment ggc_handle_finalizers
* ggc-page.c (ggc_handle_finalizers): Add comment. From-SVN: r210569
c3af645c · Trevor Saunders · Trevor Saunders · de49ce19 · c3af645c · c3af645c
Commit c3af645c authored May 17, 2014 by Trevor Saunders Committed by Trevor Saunders May 17, 2014
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gcc/ChangeLog
+4 -0

gcc/ggc-page.c
+5 -0

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--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
 2014-05-17  Trevor Saunders  <tsaunders@mozilla.com>

+	* ggc-page.c (ggc_handle_finalizers): Add comment.
+
+2014-05-17  Trevor Saunders  <tsaunders@mozilla.com>
+
 	* ggc-common.c (ggc_internal_cleared_alloc): Adjust.
 	* ggc-none.c (ggc_internal_alloc): Assert if a finalizer is passed.
 	(ggc_internal_cleared_alloc): Likewise.

--- a/gcc/ggc-page.c
+++ b/gcc/ggc-page.c
@@ -1859,6 +1859,11 @@ clear_marks (void)
    }
 }

+/* Check if any blocks with a registered finalizer have become unmarked. If so
+   run the finalizer and unregister it because the block is about to be freed.
+   Note that no garantee is made about what order finalizers will run in so
+   touching other objects in gc memory is extremely unwise.  */
+
 static void
 ggc_handle_finalizers ()
 {