Author: dim
Date: Sat Dec 17 01:36:50 2011
New Revision: 228616
URL: http://svn.freebsd.org/changeset/base/228616
Log:
In usr.bin/tar/tree.c, if you really want to poke to NULL, you must use
volatile, otherwise the indirection will not be emitted.
MFC after: 1 week
Modified:
head/usr.bin/tar/tree.c
Modified: head/usr.bin/tar/tree.c
==============================================================================
--- head/usr.bin/tar/tree.c Sat Dec 17 01:29:46 2011 (r228615)
+++ head/usr.bin/tar/tree.c Sat Dec 17 01:36:50 2011 (r228616)
@@ -315,7 +315,7 @@ tree_next(struct tree *t)
const char *msg = "Unable to continue traversing"
" directory hierarchy after a fatal error.";
write(2, msg, strlen(msg));
- *(int *)0 = 1; /* Deliberate SEGV; NULL pointer dereference. */
+ *(volatile int *)0 = 1; /* Deliberate SEGV; NULL pointer
dereference. */
exit(1); /* In case the SEGV didn't work. */
}
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