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authorupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
committerupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
commit554fd8c5195424bdbcabf5de30fdc183aba391bd (patch)
tree976dc5ab7fddf506dadce60ae936f43f58787092 /libmudflap/testsuite/libmudflap.c/fail39-frag.c
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Diffstat (limited to 'libmudflap/testsuite/libmudflap.c/fail39-frag.c')
-rw-r--r--libmudflap/testsuite/libmudflap.c/fail39-frag.c20
1 files changed, 20 insertions, 0 deletions
diff --git a/libmudflap/testsuite/libmudflap.c/fail39-frag.c b/libmudflap/testsuite/libmudflap.c/fail39-frag.c
new file mode 100644
index 000000000..4e74ea5cd
--- /dev/null
+++ b/libmudflap/testsuite/libmudflap.c/fail39-frag.c
@@ -0,0 +1,20 @@
+#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 *-*-* } } */