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authorDimitry Andric <dim@FreeBSD.org>2015-01-07 19:55:37 +0000
committerDimitry Andric <dim@FreeBSD.org>2015-01-07 19:55:37 +0000
commitca9211ecdede9bdedb812b2243a4abdb8dacd1b9 (patch)
tree9b19e801150082c33e9152275829a6ce90614b55 /test/tsan/malloc_overflow.cc
parent8ef50bf3d1c287b5013c3168de77a462dfce3495 (diff)
Diffstat (limited to 'test/tsan/malloc_overflow.cc')
-rw-r--r--test/tsan/malloc_overflow.cc23
1 files changed, 23 insertions, 0 deletions
diff --git a/test/tsan/malloc_overflow.cc b/test/tsan/malloc_overflow.cc
new file mode 100644
index 0000000000000..dadc94484f01e
--- /dev/null
+++ b/test/tsan/malloc_overflow.cc
@@ -0,0 +1,23 @@
+// RUN: %clangxx_tsan -O1 %s -o %t
+// RUN: TSAN_OPTIONS=allocator_may_return_null=1 %run %t 2>&1 | FileCheck %s
+#include <stdio.h>
+#include <stdlib.h>
+
+int main() {
+ void *p = malloc((size_t)-1);
+ if (p != 0)
+ printf("FAIL malloc(-1) = %p\n", p);
+ p = malloc((size_t)-1 / 2);
+ if (p != 0)
+ printf("FAIL malloc(-1/2) = %p\n", p);
+ p = calloc((size_t)-1, (size_t)-1);
+ if (p != 0)
+ printf("FAIL calloc(-1, -1) = %p\n", p);
+ p = calloc((size_t)-1 / 2, (size_t)-1 / 2);
+ if (p != 0)
+ printf("FAIL calloc(-1/2, -1/2) = %p\n", p);
+ printf("OK\n");
+}
+
+// CHECK-NOT: FAIL
+// CHECK-NOT: failed to allocate