1 //===- llvm/Support/Valgrind.h - Communication with Valgrind ----*- C++ -*-===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 //
9 // Methods for communicating with a valgrind instance this program is running
10 // under.  These are all no-ops unless LLVM was configured on a system with the
11 // valgrind headers installed and valgrind is controlling this process.
12 //
13 //===----------------------------------------------------------------------===//
14 
15 #ifndef LLVM_SUPPORT_VALGRIND_H
16 #define LLVM_SUPPORT_VALGRIND_H
17 
18 #include <cstddef>
19 
20 namespace llvm {
21 namespace sys {
22   // True if Valgrind is controlling this process.
23   bool RunningOnValgrind();
24 
25   // Discard valgrind's translation of code in the range [Addr .. Addr + Len).
26   // Otherwise valgrind may continue to execute the old version of the code.
27   void ValgrindDiscardTranslations(const void *Addr, size_t Len);
28 } // namespace sys
29 } // end namespace llvm
30 
31 #endif // LLVM_SUPPORT_VALGRIND_H
32