Import compiler-rt trunk r224034.vendor/compiler-rt/compiler-rt-r224034

https://llvm.org/svn/llvm-project/compiler-rt/trunk@224034

1 files changed, 30 insertions, 0 deletions

diff --git a/test/asan/TestCases/strncpy-overflow.cc b/test/asan/TestCases/strncpy-overflow.cc
new file mode 100644
index 000000000000..651ae22795f1
--- /dev/null
+++ b/test/asan/TestCases/strncpy-overflow.cc
@@ -0,0 +1,30 @@
+// RUN: %clangxx_asan -O0 %s -o %t && not %run %t 2>&1 | FileCheck %s --check-prefix=CHECK-%os --check-prefix=CHECK
+// RUN: %clangxx_asan -O1 %s -o %t && not %run %t 2>&1 | FileCheck %s --check-prefix=CHECK-%os --check-prefix=CHECK
+// RUN: %clangxx_asan -O2 %s -o %t && not %run %t 2>&1 | FileCheck %s --check-prefix=CHECK-%os --check-prefix=CHECK
+// RUN: %clangxx_asan -O3 %s -o %t && not %run %t 2>&1 | FileCheck %s --check-prefix=CHECK-%os --check-prefix=CHECK
+
+// REQUIRES: compiler-rt-optimized
+// XFAIL: arm-linux-gnueabi
+// XFAIL: armv7l-unknown-linux-gnueabihf
+
+#include <string.h>
+#include <stdlib.h>
+int main(int argc, char **argv) {
+  char *hello = (char*)malloc(6);
+  strcpy(hello, "hello");
+  char *short_buffer = (char*)malloc(9);
+  strncpy(short_buffer, hello, 10);  // BOOM
+  // CHECK: {{WRITE of size 10 at 0x.* thread T0}}
+  // CHECK-Linux: {{    #0 0x.* in .*strncpy}}
+  // CHECK-Darwin: {{    #0 0x.* in wrap_strncpy}}
+  // CHECK: {{    #1 0x.* in main .*strncpy-overflow.cc:}}[[@LINE-4]]
+  // CHECK: {{0x.* is located 0 bytes to the right of 9-byte region}}
+  // CHECK: {{allocated by thread T0 here:}}
+
+  // CHECK-Linux: {{    #0 0x.* in .*malloc}}
+  // CHECK-Linux: {{    #1 0x.* in main .*strncpy-overflow.cc:}}[[@LINE-10]]
+
+  // CHECK-Darwin: {{    #0 0x.* in wrap_malloc.*}}
+  // CHECK-Darwin: {{    #1 0x.* in main .*strncpy-overflow.cc:}}[[@LINE-13]]
+  return short_buffer[8];
+}