Originally posted by: SystemAdmin
Hi,
I am trying to debug an issue with the AIX build of an open source application. The code is working for Linux and Solaris and I am not sure if we are doing something wrong or whether it is gcc which is doing something wrong somewhere.
The troubling code is the following:
if(dp.isClosed())
{ string errorMessage =
"Error opening directory " + path +
": " + strerror(errno);
throw FileFinderException(errorMessage);
}
Throwing of exception is causing signal SIGILL (with the error ILL_ILLOPC) to be sent to the application. If I remove the line where we are throwing the exception the code works perfectly. I have tried to debug it using gdb. Here is what I observed:
#############################GDB OUTPUT START################################## FileFinderException::FileFinderException(std::string, int, Exception*) (this=0x20aaf848, errMsgIn=
{
static npos = <optimized out>, _M_dataplus =
{<allocator<char>> =
{<new_allocator<char>> =
{<No data fields>
}, <No data fields>
}, _M_p = 0x20aaf884
"Error op\ening dir\ectory /hom\e/aahir\e: P\ermission d\eni\ed"
}
}, severity=10, ex=0x0) at ../../src/AbsFileFinder.cpp:556 556 FileFinderException::FileFinderException(string errMsgIn,
int severity, Exception* ex) : Exception(errMsgIn, severity, ex)
{ (gdb) s Exception::Exception(std::string, int, Exception*) (this=0x20aaf848, msgIn=
{
static npos = <optimized out>, _M_dataplus =
{<allocator<char>> =
{<new_allocator<char>> =
{<No data fields>
}, <No data fields>
}, _M_p = 0x20aaf884
"Error op\ening dir\ectory /hom\e/aahir\e: P\ermission d\eni\ed"
}
}, severityIn=10, ex=0x0) at ../../../ovaldi-common/Exception.cpp:38 38 Exception::Exception(string msgIn,
int severityIn, Exception* ex)
{ (gdb) s 47 this->SetSeverity(severityIn); (gdb) s Exception::SetSeverity(
int) (this=0x20aaf848, severityIn=10) at ../../../ovaldi-common/Exception.cpp:127 127 this->severity = severityIn; (gdb) s 128
} (gdb) Exception::Exception(std::string, int, Exception*) (this=0x20aaf848, msgIn=
{
static npos = <optimized out>, _M_dataplus =
{<allocator<char>> =
{<new_allocator<char>> =
{<No data fields>
}, <No data fields>
}, _M_p = 0x20aaf884
"Error op\ening dir\ectory /hom\e/aahir\e: P\ermission d\eni\ed"
}
}, severityIn=10, ex=0x0) at ../../../ovaldi-common/Exception.cpp:48 48 this->SetErrorMessage(msgIn); (gdb) s Exception::SetErrorMessage(std::string) (this=0x20aaf848, errorMessageIn=
{
static npos = <optimized out>, _M_dataplus =
{<allocator<char>> =
{<new_allocator<char>> =
{<No data fields>
}, <No data fields>
}, _M_p = 0x20aaf884
"Error op\ening dir\ectory /hom\e/aahir\e: P\ermission d\eni\ed"
}
}) at ../../../ovaldi-common/Exception.cpp:116 116 this->errorMessage = errorMessageIn; (gdb) s 117
} (gdb) s Exception::Exception(std::string, int, Exception*) (this=0x20aaf848, msgIn=
{
static npos = <optimized out>, _M_dataplus =
{<allocator<char>> =
{<new_allocator<char>> =
{<No data fields>
}, <No data fields>
}, _M_p = 0x20aaf884
"Error op\ening dir\ectory /hom\e/aahir\e: P\ermission d\eni\ed"
}
}, severityIn=10, ex=0x0) at ../../../ovaldi-common/Exception.cpp:49 49 this->SetCause(ex); (gdb) s Exception::SetCause(Exception*) (this=0x20aaf848, ex=0x0) at ../../../ovaldi-common/Exception.cpp:105 105 this->cause = ex; (gdb) s 106
} (gdb) s Exception::Exception(std::string, int, Exception*) (this=0x20aaf848, msgIn=
{
static npos = <optimized out>, _M_dataplus =
{<allocator<char>> =
{<new_allocator<char>> =
{<No data fields>
}, <No data fields>
}, _M_p = 0x20aaf884
"Error op\ening dir\ectory /hom\e/aahir\e: P\ermission d\eni\ed"
}
}, severityIn=10, ex=0x0) at ../../../ovaldi-common/Exception.cpp:53 53
} (gdb) s FileFinderException::FileFinderException(std::string, int, Exception*) (this=0x20aaf848, errMsgIn=
{
static npos = <optimized out>, _M_dataplus =
{<allocator<char>> =
{<new_allocator<char>> =
{<No data fields>
}, <No data fields>
}, _M_p = 0x200c8294
"\020\f$\004 \f\237\024"
}
}, severity=10, ex=0x0) at ../../src/AbsFileFinder.cpp:558 558
} (gdb) s Program received signal SIGILL, Illegal instruction. 0x00000000 in ?? () #############################GDB OUTPUT END##################################
The code follows:
#############################CODE STARTS#####################################
class FileFinderException :
public Exception
{
public: FileFinderException(std::string errMsgIn =
"",
int severity = ERROR_FATAL, Exception* ex = NULL); ~FileFinderException();
}; FileFinderException::FileFinderException(string errMsgIn,
int severity, Exception* ex) : Exception(errMsgIn, severity, ex)
{
} FileFinderException::~FileFinderException()
{
}
class FileFinderException :
public Exception
{
public: FileFinderException(std::string errMsgIn =
"",
int severity = ERROR_FATAL, Exception* ex = NULL); ~FileFinderException();
}; Exception::Exception(string msgIn,
int severityIn, Exception* ex)
{ this->SetSeverity(severityIn); this->SetErrorMessage(msgIn); this->SetCause(ex);
}
void Exception::SetCause(Exception* ex)
{ this->cause = ex;
}
void Exception::SetErrorMessage(string errorMessageIn)
{ this->errorMessage = errorMessageIn;
}
void Exception::SetSeverity(
int severityIn)
{ this->severity = severityIn;
} #############################CODE END#####################################
Can somebody help me what is the problem over here? I don't seem to find any issue with the code.