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0028829: dsetsignal command does not work on Linux properly

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OSD::SetSignal() is corrected to unset FPE exceptions on Linux if called with False argument
This commit is contained in:
abv
2017-06-22 22:43:38 +03:00
committed by bugmaster
parent a228288f61
commit 66cfcd0f73
3 changed files with 34 additions and 14 deletions
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25
src/OSD/OSD_signal.cxx
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@@ -872,7 +872,6 @@ static void SegvHandler(const int theSignal,
void OSD::SetSignal(const Standard_Boolean aFloatingSignal)
{
static int first_time = 3 ;
struct sigaction act, oact;
int stat = 0;
@@ -894,27 +893,25 @@ void OSD::SetSignal(const Standard_Boolean aFloatingSignal)
}
#elif defined (__linux__)
feenableexcept (FE_INVALID | FE_DIVBYZERO | FE_OVERFLOW);
//feenableexcept (FE_INVALID | FE_DIVBYZERO);
fFltExceptions = Standard_True;
#endif
}
else if ( first_time & 1 ) {
// cout << "SetSignal( Standard_False ) is not implemented..." << endl ;
first_time = first_time & (~ 1) ;
else
{
#if defined (__linux__)
fedisableexcept (FE_INVALID | FE_DIVBYZERO | FE_OVERFLOW);
fFltExceptions = Standard_False;
#endif
}
#if defined (sgi) || defined (IRIX )
if ( first_time & 2 ) {
char *TRAP_FPE = getenv("TRAP_FPE") ;
if ( TRAP_FPE == NULL ) {
char *TRAP_FPE = getenv("TRAP_FPE") ;
if ( TRAP_FPE == NULL ) {
#ifdef OCCT_DEBUG
cout << "On SGI you must set TRAP_FPE environment variable : " << endl ;
cout << "set env(TRAP_FPE) \"UNDERFL=FLUSH_ZERO;OVERFL=DEFAULT;DIVZERO=DEFAULT;INT_OVERFL=DEFAULT\" or" << endl ;
cout << "setenv TRAP_FPE \"UNDERFL=FLUSH_ZERO;OVERFL=DEFAULT;DIVZERO=DEFAULT;INT_OVERFL=DEFAULT\"" << endl ;
cout << "On SGI you must set TRAP_FPE environment variable : " << endl ;
cout << "set env(TRAP_FPE) \"UNDERFL=FLUSH_ZERO;OVERFL=DEFAULT;DIVZERO=DEFAULT;INT_OVERFL=DEFAULT\" or" << endl ;
cout << "setenv TRAP_FPE \"UNDERFL=FLUSH_ZERO;OVERFL=DEFAULT;DIVZERO=DEFAULT;INT_OVERFL=DEFAULT\"" << endl ;
#endif
// exit(1) ;
first_time = first_time & (~ 2) ;
}
}
#endif