vendor/compiler-rt/compiler-rt-r160957

1 files changed, 29 insertions, 0 deletions

diff --git a/lib/interception/interception_linux.cc b/lib/interception/interception_linux.cc
new file mode 100644
index 000000000000..37e593323d22
--- /dev/null
+++ b/lib/interception/interception_linux.cc
@@ -0,0 +1,29 @@
+//===-- interception_linux.cc -----------------------------------*- 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 AddressSanitizer, an address sanity checker.
+//
+// Linux-specific interception methods.
+//===----------------------------------------------------------------------===//
+
+#ifdef __linux__
+
+#include <stddef.h>  // for NULL
+#include <dlfcn.h>   // for dlsym
+
+namespace __interception {
+bool GetRealFunctionAddress(const char *func_name, void **func_addr,
+    void *real, void *wrapper) {
+  *func_addr = dlsym(RTLD_NEXT, func_name);
+  return real == wrapper;
+}
+}  // namespace __interception
+
+
+#endif  // __linux__