+2005-03-17 Frank Ch. Eigler <fche@redhat.com>
+
+ * mf-runtime.c (__mfu_check): Respect ignore_reads configuration.
+ * testsuite/libmudflap.c/{pass56,fail39}-frag.c: New tests.
+
2005-02-13 Frank Ch. Eigler <fche@redhat.com>
PR mudflap/19319
/* Mudflap: narrow-pointer bounds-checking by tree rewriting.
- Copyright (C) 2002, 2003, 2004 Free Software Foundation, Inc.
+ Copyright (C) 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
Contributed by Frank Ch. Eigler <fche@redhat.com>
and Graydon Hoare <graydon@redhat.com>
Splay Tree code originally by Mark Mitchell <mark@markmitchell.com>,
if (UNLIKELY (__mf_opts.sigusr1_report))
__mf_sigusr1_respond ();
+ if (UNLIKELY (__mf_opts.ignore_reads && type == 0))
+ return;
TRACE ("check ptr=%p b=%u size=%lu %s location=`%s'\n",
ptr, entry_idx, (unsigned long)sz,
--- /dev/null
+#include <stdio.h>
+#include <stdlib.h>
+
+int main ()
+{
+ volatile int *k = (int *) malloc (sizeof (int));
+ volatile int l;
+ if (k == NULL) abort ();
+ *k = 5;
+ free ((void *) k);
+ __mf_set_options ("-ignore-reads");
+ l = *k; /* Should not trip, even though memory region just freed. */
+ __mf_set_options ("-no-ignore-reads");
+ l = *k; /* Should trip now. */
+ return 0;
+}
+/* { dg-output "mudflap violation 1.*check/read.*" } */
+/* { dg-output "Nearby object 1.*" } */
+/* { dg-output "mudflap dead object.*malloc region.*" } */
+/* { dg-do run { xfail *-*-* } } */
--- /dev/null
+#include <stdio.h>
+#include <stdlib.h>
+
+int main ()
+{
+ volatile int *k = (int *) malloc (sizeof (int));
+ volatile int l;
+ if (k == NULL) abort ();
+ *k = 5;
+ free ((void *) k);
+ __mf_set_options ("-ignore-reads");
+ l = *k; /* Should not trip, even though memory region just freed. */
+ return 0;
+}