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annotate lib/Support/Valgrind.cpp @ 21:fc4a6333556f

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change error message when tail call elimination is failed.
author Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
date Mon, 14 Oct 2013 19:09:00 +0900
parents 9ad51c7bc036
children 54457678186b
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1 //===-- Valgrind.cpp - Implement Valgrind communication ---------*- C++ -*-===//
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2 //
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3 // The LLVM Compiler Infrastructure
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4 //
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5 // This file is distributed under the University of Illinois Open Source
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6 // License. See LICENSE.TXT for details.
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7 //
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8 //===----------------------------------------------------------------------===//
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9 //
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10 // Defines Valgrind communication methods, if HAVE_VALGRIND_VALGRIND_H is
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11 // defined. If we have valgrind.h but valgrind isn't running, its macros are
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12 // no-ops.
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13 //
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14 //===----------------------------------------------------------------------===//
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15
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16 #include "llvm/Support/Valgrind.h"
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17 #include "llvm/Config/config.h"
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19 #if HAVE_VALGRIND_VALGRIND_H
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20 #include <valgrind/valgrind.h>
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22 static bool InitNotUnderValgrind() {
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23 return !RUNNING_ON_VALGRIND;
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24 }
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25
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26 // This bool is negated from what we'd expect because code may run before it
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27 // gets initialized. If that happens, it will appear to be 0 (false), and we
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28 // want that to cause the rest of the code in this file to run the
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29 // Valgrind-provided macros.
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30 static const bool NotUnderValgrind = InitNotUnderValgrind();
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32 bool llvm::sys::RunningOnValgrind() {
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33 if (NotUnderValgrind)
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34 return false;
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35 return RUNNING_ON_VALGRIND;
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36 }
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38 void llvm::sys::ValgrindDiscardTranslations(const void *Addr, size_t Len) {
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39 if (NotUnderValgrind)
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40 return;
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42 VALGRIND_DISCARD_TRANSLATIONS(Addr, Len);
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43 }
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45 #else // !HAVE_VALGRIND_VALGRIND_H
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47 bool llvm::sys::RunningOnValgrind() {
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48 return false;
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49 }
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51 void llvm::sys::ValgrindDiscardTranslations(const void *Addr, size_t Len) {
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52 }
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53
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54 #endif // !HAVE_VALGRIND_VALGRIND_H
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55
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56 #if LLVM_ENABLE_THREADS != 0 && !defined(NDEBUG)
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57 // These functions require no implementation, tsan just looks at the arguments
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58 // they're called with.
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59 extern "C" {
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60 void AnnotateHappensBefore(const char *file, int line,
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61 const volatile void *cv) {}
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62 void AnnotateHappensAfter(const char *file, int line,
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63 const volatile void *cv) {}
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64 void AnnotateIgnoreWritesBegin(const char *file, int line) {}
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65 void AnnotateIgnoreWritesEnd(const char *file, int line) {}
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66 }
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67 #endif