1 | // |
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2 | // ******************************************************************** |
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3 | // * License and Disclaimer * |
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4 | // * * |
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5 | // * The Geant4 software is copyright of the Copyright Holders of * |
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6 | // * the Geant4 Collaboration. It is provided under the terms and * |
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7 | // * conditions of the Geant4 Software License, included in the file * |
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8 | // * LICENSE and available at http://cern.ch/geant4/license . These * |
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9 | // * include a list of copyright holders. * |
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10 | // * * |
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11 | // * Neither the authors of this software system, nor their employing * |
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12 | // * institutes,nor the agencies providing financial support for this * |
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13 | // * work make any representation or warranty, express or implied, * |
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14 | // * regarding this software system or assume any liability for its * |
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15 | // * use. Please see the license in the file LICENSE and URL above * |
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16 | // * for the full disclaimer and the limitation of liability. * |
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17 | // * * |
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18 | // * This code implementation is the result of the scientific and * |
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19 | // * technical work of the GEANT4 collaboration. * |
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20 | // * By using, copying, modifying or distributing the software (or * |
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21 | // * any work based on the software) you agree to acknowledge its * |
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22 | // * use in resulting scientific publications, and indicate your * |
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23 | // * acceptance of all terms of the Geant4 Software license. * |
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24 | // ******************************************************************** |
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25 | // |
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26 | // |
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27 | // $Id: G4FPEDetection.hh,v 1.2 2006/11/15 16:00:18 gcosmo Exp $ |
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28 | // GEANT4 tag $Name: geant4-09-02-ref-02 $ |
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29 | // |
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30 | // |
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31 | // -*- C++ -*- |
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32 | // |
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33 | // ----------------------------------------------------------------------- |
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34 | // This global method should be used on LINUX platforms with gcc compiler |
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35 | // for activating NaN detection and FPE signals, and forcing abortion of |
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36 | // the application at the time these are detected. |
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37 | // Meant to be used for debug purposes, can be activated by compiling the |
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38 | // "run" module with the flag G4FPE_DEBUG set in the environment. |
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39 | // ----------------------------------------------------------------------- |
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40 | |
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41 | #ifndef G4FPEDetection_h |
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42 | #define G4FPEDetection_h 1 |
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43 | |
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44 | #ifdef __linux__ |
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45 | #ifdef __GNUC__ |
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46 | #include <features.h> |
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47 | #include <fenv.h> |
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48 | #include <csignal> |
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49 | |
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50 | #include <iostream> |
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51 | |
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52 | struct sigaction termaction, oldaction; |
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53 | |
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54 | void TerminationSignalHandler(int sig) |
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55 | { |
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56 | std::cerr << "ERROR: " << sig; |
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57 | std::string message; |
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58 | switch (SIGFPE) |
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59 | { |
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60 | case FPE_INTDIV: |
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61 | message = "Integer divide by zero."; |
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62 | break; |
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63 | case FPE_INTOVF: |
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64 | message = "Integer overflow."; |
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65 | break; |
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66 | case FPE_FLTDIV: |
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67 | message = "Floating point divide by zero."; |
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68 | break; |
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69 | case FPE_FLTOVF: |
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70 | message = "Floating point overflow."; |
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71 | break; |
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72 | case FPE_FLTUND: |
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73 | message = "Floating point underflow."; |
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74 | break; |
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75 | case FPE_FLTRES: |
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76 | message = "Floating point inexact result."; |
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77 | break; |
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78 | case FPE_FLTINV: |
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79 | message = "Floating point invalid operation."; |
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80 | break; |
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81 | case FPE_FLTSUB: |
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82 | message = "Subscript out of range."; |
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83 | break; |
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84 | default: |
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85 | message = "Unknown error."; |
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86 | break; |
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87 | } |
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88 | std::cerr << " - " << message << std::endl; |
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89 | |
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90 | ::abort(); |
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91 | } |
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92 | |
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93 | void InvalidOperationDetection() |
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94 | { |
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95 | std::cout << std::endl |
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96 | << " " |
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97 | << "############################################" << std::endl |
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98 | << " " |
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99 | << "!!! WARNING - FPE detection is activated !!!" << std::endl |
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100 | << " " |
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101 | << "############################################" << std::endl; |
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102 | |
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103 | (void) feenableexcept( FE_DIVBYZERO ); |
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104 | (void) feenableexcept( FE_INVALID ); |
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105 | //(void) feenableexcept( FE_OVERFLOW ); |
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106 | //(void) feenableexcept( FE_UNDERFLOW ); |
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107 | |
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108 | sigset_t *def_set; |
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109 | def_set=&termaction.sa_mask; |
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110 | sigfillset(def_set); |
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111 | sigdelset(def_set,SIGFPE); |
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112 | termaction.sa_handler=TerminationSignalHandler; |
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113 | termaction.sa_flags=0; |
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114 | sigaction(SIGFPE, &termaction,&oldaction); |
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115 | } |
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116 | #endif |
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117 | #else |
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118 | void InvalidOperationDetection() {;} |
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119 | #endif |
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120 | |
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121 | #endif |
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