Import compiler-rt 3.7.0 release (r246257).vendor/compiler-rt/compiler-rt-release_370-r246257

1 files changed, 20 insertions, 0 deletions

diff --git a/test/asan/TestCases/strstr-2.c b/test/asan/TestCases/strstr-2.c
new file mode 100644
index 000000000000..cd116212fa95
--- /dev/null
+++ b/test/asan/TestCases/strstr-2.c
@@ -0,0 +1,20 @@
+// Test needle overflow in strstr function
+// RUN: %clang_asan %s -o %t && env ASAN_OPTIONS=$ASAN_OPTIONS:strict_string_checks=true not %run %t 2>&1 | FileCheck %s
+
+// Test intercept_strstr asan option
+// Disable other interceptors because strlen may be called inside strstr
+// RUN: env ASAN_OPTIONS=$ASAN_OPTIONS:intercept_strstr=false:replace_str=false %run %t 2>&1
+
+#include <assert.h>
+#include <string.h>
+
+int main(int argc, char **argv) {
+  char *r = 0;
+  char s1[] = "ab";
+  char s2[] = {'c'};
+  char s3 = 0;
+  r = strstr(s1, s2);
+  // CHECK:'s{{[2|3]}}' <== Memory access at offset {{[0-9]+ .*}}flows this variable
+  assert(r == 0);
+  return 0;
+}