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

1 files changed, 27 insertions, 0 deletions

diff --git a/test/asan/TestCases/Posix/interception-in-shared-lib-test.cc b/test/asan/TestCases/Posix/interception-in-shared-lib-test.cc
new file mode 100644
index 000000000000..a7d2bfb9b43c
--- /dev/null
+++ b/test/asan/TestCases/Posix/interception-in-shared-lib-test.cc
@@ -0,0 +1,27 @@
+// Check that memset() call from a shared library gets intercepted.
+
+// RUN: %clangxx_asan -O0 %s -DSHARED_LIB \
+// RUN:     -shared -o %dynamiclib -fPIC %ld_flags_rpath_so
+// RUN: %clangxx_asan -O0 %s -o %t %ld_flags_rpath_exe && \
+// RUN:     not %run %t 2>&1 | FileCheck %s
+
+#include <stdio.h>
+#include <string.h>
+
+#if defined(SHARED_LIB)
+extern "C"
+void my_memset(void *p, size_t sz) {
+  memset(p, 0, sz);
+}
+#else
+extern "C" void my_memset(void *p, size_t sz);
+
+int main(int argc, char *argv[]) {
+  char buf[10];
+  my_memset(buf, 11);
+  // CHECK: {{.*ERROR: AddressSanitizer: stack-buffer-overflow}}
+  // CHECK: {{WRITE of size 11 at 0x.* thread T0}}
+  // CHECK: {{0x.* in my_memset .*interception-in-shared-lib-test.cc:}}[[@LINE-10]]
+  return 0;
+}
+#endif