1 files changed, 37 insertions, 0 deletions
diff --git a/contrib/llvm-project/compiler-rt/lib/sanitizer_common/sanitizer_dl.cpp b/contrib/llvm-project/compiler-rt/lib/sanitizer_common/sanitizer_dl.cpp
new file mode 100644
index 000000000000..e957d529c2fe
--- /dev/null
+++ b/contrib/llvm-project/compiler-rt/lib/sanitizer_common/sanitizer_dl.cpp
@@ -0,0 +1,37 @@
+//===-- sanitizer_dl.cpp --------------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+//
+// This file has helper functions that depend on libc's dynamic loading
+// introspection.
+//
+//===----------------------------------------------------------------------===//
+
+#include "sanitizer_dl.h"
+
+#include "sanitizer_common/sanitizer_platform.h"
+
+#if SANITIZER_GLIBC
+#  include <dlfcn.h>
+#endif
+
+namespace __sanitizer {
+extern const char *SanitizerToolName;
+
+const char *DladdrSelfFName(void) {
+#if SANITIZER_GLIBC
+  Dl_info info;
+  int ret = dladdr((void *)&SanitizerToolName, &info);
+  if (ret) {
+    return info.dli_fname;
+  }
+#endif
+
+  return nullptr;
+}
+
+}  // namespace __sanitizer