From: ivmai <ivmai>
Date: Fri, 4 Dec 2009 10:20:18 +0000 (+0000)
Subject: 2009-12-04  Ivan Maidanski <ivmai@mail.ru>
X-Git-Tag: gc7_2alpha5-20110107~89
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=16780405c899f01119bc45167122b4242f6b34fb;p=gc

2009-12-04  Ivan Maidanski <ivmai@mail.ru>

	* mark_rts.c (GC_approx_sp): Add a comment (for GCC).
---

diff --git a/ChangeLog b/ChangeLog
index 69cb86fb..5b42b268 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+2009-12-04  Ivan Maidanski <ivmai@mail.ru>
+
+	* mark_rts.c (GC_approx_sp): Add a comment (for GCC).
+
 2009-12-04  Ivan Maidanski <ivmai@mail.ru>
 
 	* include/gc_version.h, configure.ac, doc/README: Change to
diff --git a/mark_rts.c b/mark_rts.c
index f53393e5..8afefdc2 100644
--- a/mark_rts.c
+++ b/mark_rts.c
@@ -365,6 +365,8 @@ GC_INNER ptr_t GC_approx_sp(void)
                 /* later accesses might cause the kernel to think we're */
                 /* doing something wrong.                               */
     return((ptr_t)sp);
+                /* GNU C: alternatively, we may return the value of     */
+                /*__builtin_frame_address(0).                           */
 }
 
 /*