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List:       gcc-bugs
Subject:    [Bug libmudflap/30994]  New: App using Qt lib aborts immediately during startup
From:       "aegges at web dot de" <gcc-bugzilla () gcc ! gnu ! org>
Date:       2007-02-28 11:34:25
Message-ID: bug-30994-14169 () http ! gcc ! gnu ! org/bugzilla/
[Download RAW message or body]

I compiled a simple app that is linked dynamically against the Qt library (Qt
3.3.8). 

#include "qstring.h"
int main(void) {
   QString oTmp("Hello world");

   printf( "%s\n", oTmp.ascii() );
   return 1;
}

I have compiled the source file with mudflap activated. When I start the
program I get the following error:
terminate called after throwing an instance of 'St9bad_alloc'
  what():  St9bad_alloc
Aborted.

The backtrace of gdb gives:
#0  0xb7f51410 in __kernel_vsyscall ()
#1  0x43517aed in raise () from /lib/libc.so.6
#2  0x43519239 in abort () from /lib/libc.so.6
#3  0xb7599a90 in __gnu_cxx::__verbose_terminate_handler ()
   from /usr/lib/gcc/i686-pc-linux-gnu/4.1.1/libstdc++.so.6
#4  0xb75977c5 in ?? () from
/usr/lib/gcc/i686-pc-linux-gnu/4.1.1/libstdc++.so.6
#5  0xb75977f6 in std::terminate ()
   from /usr/lib/gcc/i686-pc-linux-gnu/4.1.1/libstdc++.so.6
#6  0xb75978fa in __cxa_throw () from
/usr/lib/gcc/i686-pc-linux-gnu/4.1.1/libstdc++.so.6
#7  0xb7597ce0 in operator new ()
   from /usr/lib/gcc/i686-pc-linux-gnu/4.1.1/libstdc++.so.6
#8  0xb7597da9 in operator new[] ()
   from /usr/lib/gcc/i686-pc-linux-gnu/4.1.1/libstdc++.so.6
#9  0xb7b8d144 in qstrdup ()
   from /home/amueller/sources/qt-x11-commercial-3.3.8/lib/libqt-mt.so.3
#10 0xb7ba2200 in QGDict::look_ascii ()
   from /home/amueller/sources/qt-x11-commercial-3.3.8/lib/libqt-mt.so.3
#11 0xb78484f7 in QMetaObjectCleanUp::QMetaObjectCleanUp ()
   from /home/amueller/sources/qt-x11-commercial-3.3.8/lib/libqt-mt.so.3
#12 0xb7c79764 in global constructors keyed to
_ZNK15QMotifPlusStyle9classNameEv ()
   from /home/amueller/sources/qt-x11-commercial-3.3.8/lib/libqt-mt.so.3

Using MUDFLAP_OPTIONS did not help as my app doesn't seem to reach the point
where it evaluates MUDFLAP_OPTIONS, as even MUDFLAP_OPTIONS="-help" doesn't
work.

The interesting thing is that I can run the mudflapped app with valgrind!!! 

Gentoo Linux 2.6.18, gcc 4.1.2 (identical problem with gcc 4.1.1)


-- 
           Summary: App using Qt lib aborts immediately during startup
           Product: gcc
           Version: 4.1.2
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: libmudflap
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: aegges at web dot de


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30994

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