Add working set base runtime library
Summary:
Adds the base runtime library for the working set tool.
Adds slowpath code for updating the shadow memory.
To be added in the future:
+ Scan memory and report the total size.
+ Take samples for intermediate values.
Reviewers: aizatsky
Subscribers: kubabrecka, vitalybuka, zhaoqin, kcc, eugenis, llvm-commits
Differential Revision: http://reviews.llvm.org/D20485
llvm-svn: 270650
diff --git a/compiler-rt/lib/esan/working_set.h b/compiler-rt/lib/esan/working_set.h
new file mode 100644
index 0000000..4b1bc15
--- /dev/null
+++ b/compiler-rt/lib/esan/working_set.h
@@ -0,0 +1,30 @@
+//===-- working_set.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 EfficiencySanitizer, a family of performance tuners.
+//
+// Header for working-set-specific code.
+//===----------------------------------------------------------------------===//
+
+#ifndef WORKING_SET_H
+#define WORKING_SET_H
+
+#include "interception/interception.h"
+#include "sanitizer_common/sanitizer_internal_defs.h"
+
+namespace __esan {
+
+void initializeWorkingSet();
+int finalizeWorkingSet();
+void processRangeAccessWorkingSet(uptr PC, uptr Addr, SIZE_T Size,
+ bool IsWrite);
+
+} // namespace __esan
+
+#endif // WORKING_SET_H