Author: dim
Date: Sun Jan 1 17:44:26 2012
New Revision: 229178
URL: http://svn.freebsd.org/changeset/base/229178
Log:
MFC r228616:
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.
Modified:
stable/9/usr.bin/tar/tree.c
Directory Properties:
stable/9/usr.bin/tar/ (props changed)
Modified: stable/9/usr.bin/tar/tree.c
==============================================================================
--- stable/9/usr.bin/tar/tree.c Sun Jan 1 17:42:02 2012 (r229177)
+++ stable/9/usr.bin/tar/tree.c Sun Jan 1 17:44:26 2012 (r229178)
@@ -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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