From: Ivan Maidanski <ivmai@mail.ru>
Date: Tue, 25 Oct 2016 21:14:20 +0000 (+0300)
Subject: Eliminate 'Condition 0==datastart always false' cppcheck warning (dyn_load)
X-Git-Tag: v8.0.0~1075
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=b9f46e5af3700ea60d93394a467071042ba5fb33;p=platform%2Fupstream%2Flibgc.git

Eliminate 'Condition 0==datastart always false' cppcheck warning (dyn_load)

* dyn_load.c [HAVE_DL_ITERATE_PHDR]
(GC_register_dynamic_libraries_dl_iterate_phdr): Cast datastart to
char*volatile* before dereferencing and checking against NULL.
---

diff --git a/dyn_load.c b/dyn_load.c
index 836e4bc..42534c1 100644
--- a/dyn_load.c
+++ b/dyn_load.c
@@ -621,7 +621,8 @@ STATIC GC_bool GC_register_dynamic_libraries_dl_iterate_phdr(void)
 #     else
         dataend = DATAEND;
 #     endif
-      if (NULL == datastart || (word)datastart > (word)dataend)
+      if (NULL == *(char * volatile *)&datastart
+          || (word)datastart > (word)dataend)
         ABORT_ARG2("Wrong DATASTART/END pair",
                    ": %p .. %p", (void *)datastart, (void *)dataend);