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 relevant 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.
-OBD
