Coverage Report

Created: 2019-07-24 05:18

/Users/buildslave/jenkins/workspace/clang-stage2-coverage-R/llvm/lib/Support/Valgrind.cpp
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//===-- Valgrind.cpp - Implement Valgrind communication ---------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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//  Defines Valgrind communication methods, if HAVE_VALGRIND_VALGRIND_H is
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//  defined.  If we have valgrind.h but valgrind isn't running, its macros are
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//  no-ops.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/Support/Valgrind.h"
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#include "llvm/Config/config.h"
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#include <cstddef>
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#if HAVE_VALGRIND_VALGRIND_H
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#include <valgrind/valgrind.h>
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static bool InitNotUnderValgrind() {
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  return !RUNNING_ON_VALGRIND;
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}
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// This bool is negated from what we'd expect because code may run before it
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// gets initialized.  If that happens, it will appear to be 0 (false), and we
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// want that to cause the rest of the code in this file to run the
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// Valgrind-provided macros.
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static const bool NotUnderValgrind = InitNotUnderValgrind();
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bool llvm::sys::RunningOnValgrind() {
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  if (NotUnderValgrind)
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    return false;
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  return RUNNING_ON_VALGRIND;
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}
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void llvm::sys::ValgrindDiscardTranslations(const void *Addr, size_t Len) {
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  if (NotUnderValgrind)
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    return;
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  VALGRIND_DISCARD_TRANSLATIONS(Addr, Len);
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}
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#else  // !HAVE_VALGRIND_VALGRIND_H
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bool llvm::sys::RunningOnValgrind() {
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  return false;
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}
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void llvm::sys::ValgrindDiscardTranslations(const void *Addr, size_t Len) {
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}
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#endif  // !HAVE_VALGRIND_VALGRIND_H