1 files changed, 67 insertions, 0 deletions
diff --git a/lib/dfsan/dfsan.h b/lib/dfsan/dfsan.h
new file mode 100644
index 000000000000..693e0c5efe04
--- /dev/null
+++ b/lib/dfsan/dfsan.h
@@ -0,0 +1,67 @@
+//===-- dfsan.h -------------------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file is a part of DataFlowSanitizer.
+//
+// Private DFSan header.
+//===----------------------------------------------------------------------===//
+
+#ifndef DFSAN_H
+#define DFSAN_H
+
+#include "sanitizer_common/sanitizer_internal_defs.h"
+
+// Copy declarations from public sanitizer/dfsan_interface.h header here.
+typedef u16 dfsan_label;
+
+struct dfsan_label_info {
+  dfsan_label l1;
+  dfsan_label l2;
+  const char *desc;
+  void *userdata;
+};
+
+extern "C" {
+void dfsan_set_label(dfsan_label label, void *addr, uptr size);
+dfsan_label dfsan_read_label(const void *addr, uptr size);
+dfsan_label dfsan_union(dfsan_label l1, dfsan_label l2);
+}  // extern "C"
+
+template <typename T>
+void dfsan_set_label(dfsan_label label, T &data) {  // NOLINT
+  dfsan_set_label(label, (void *)&data, sizeof(T));
+}
+
+namespace __dfsan {
+
+void InitializeInterceptors();
+
+inline dfsan_label *shadow_for(void *ptr) {
+  return (dfsan_label *) ((((uptr) ptr) & ~0x700000000000) << 1);
+}
+
+inline const dfsan_label *shadow_for(const void *ptr) {
+  return shadow_for(const_cast<void *>(ptr));
+}
+
+struct Flags {
+  // Whether to warn on unimplemented functions.
+  bool warn_unimplemented;
+  // Whether to warn on non-zero labels.
+  bool warn_nonzero_labels;
+};
+
+extern Flags flags_data;
+inline Flags &flags() {
+  return flags_data;
+}
+
+}  // namespace __dfsan
+
+#endif  // DFSAN_H