RE: [Boost-users] Seg Fault in Boost/STL?

From: Michael Peterson (mtp1032_at_[hidden])
Date: 2005-01-14 17:04:41

I thought it might be more useful to show the stack trace produced when
the test program is linked against the BOOST and STL static libs.

(gdb) run
Starting program: /home/michael/sde/pthreads-1.0/src/private/unit_test
[Thread debugging using libthread_db enabled]
[New Thread 1076290656 (LWP 4287)]

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 1076290656 (LWP 4287)]
0x0804aa67 in _M_assign_dispatch<char*> (this=0x48, __f=0x80d1940 "",
__l=0x80d1940 "") at _string.h:626
626         pointer __cur = this->_M_start;
(gdb) bt
#0  0x0804aa67 in _M_assign_dispatch<char*> (this=0x48, __f=0x80d1940
"", __l=0x80d1940 "") at _string.h:626
#1  0x0804aa58 in assign<char*> (this=0x48, __first=0x80d1940 "",
__last=0x80d1940 "") at _string.h:644
#2  0x0804a882 in _STL::basic_string<char, _STL::char_traits<char>,
_STL::allocator<char> >::operator=(_STL::basic_string<char,
_STL::char_traits<char>, _STL::allocator<char> > const&) (this=0x48,
__s=@0xbffff300) at _string.h:309
#3  0x0804a3fa in _STL::basic_ios<char, _STL::char_traits<char>
>::imbue(_STL::locale const&) (this=0x0, __loc=@0x0) at _ios.c:83
(gdb)

Here, again, is the source code:

#include <boost/test/test_tools.hpp>
bool test1()
{
    return( true );
}
int test_main( int argc, char * argv[] )
{
    BOOST_CHECK( test1() == true );
    return( 0 );
}

Cheers,

Michael

-----Original Message-----
From: boost-users-bounces_at_[hidden]
[mailto:boost-users-bounces_at_[hidden]] On Behalf Of Michael
Peterson
Sent: Friday, January 14, 2005 11:54 AM
To: boost-users_at_[hidden]
Subject: [Boost-users] Seg Fault in Boost/STL?

The following program sustains a segfault and, since the program is so
simple, I have to believe the problem lies in my setup/system/build. I
hope someone can provide me with some advice as to how I might proceed
to further diagnose this problem.  To this end, I've provided my system
configuration, the compiler and linker options, the source code of the
offending program, and a gdb stack trace at the point at which the
segfault was sustained.

(1) Here's what uname -a reveals:
linux 2.6.3-7mdk-i686-up-4GB #1 Wed Mar 17 15:17:23 CET 2004 i686
unknown unknown GNU/Linux

(2) The code is compiled using g++ 3.3.2 with the following flags:
-ggdb3 -Wall -Wstrict-prototypes -D__USE_POSIX -D_REENTRANT,

(3) I link the compiled code against libboost_test_exec_monitor.so
(V1.32.0) and libstlport_gcc.so (4.6.2).

(4) Here's the source file -- Note that this is pure BOOST code.

#include <boost/test/test_tools.hpp>

bool test1()
{
    return( true );
}

int test_main( int argc, char * argv[] )
{
    BOOST_CHECK( test1() == true );
    return( 0 );
}

(5) Here is the gdb stack trace taken after the segfault.

(gdb) run
Starting program: /home/michael/sde/pthreads-1.0/src/private/test
[Thread debugging using libthread_db enabled]
[New Thread 1078715360 (LWP 3872)]

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 1078715360 (LWP 3872)]
0x400bcd79 in _STL::locale::locale() () from
/usr/local/lib/stlport/libstlport_gcc.so
(gdb) bt
#0  0x400bcd79 in _STL::locale::locale() () from
/usr/local/lib/stlport/libstlport_gcc.so
#1  0x4008c88d in _STL::ios_base::ios_base() () from
/usr/local/lib/stlport/libstlport_gcc.so
#2  0x0804d83b in basic_ios (this=0x400f05e8) at _ios.c:95
#3  0x4008e831 in _STL::basic_istream<char, _STL::char_traits<char>
>::basic_istream(_STL::basic_streambuf<char, _STL::char_traits<char> >*)
()
   from /usr/local/lib/stlport/libstlport_gcc.so
#4  0x4009e04d in _STL::ios_base::_S_initialize() () from
/usr/local/lib/stlport/libstlport_gcc.so
#5  0x4009de56 in _STL::ios_base::Init::Init() () from
/usr/local/lib/stlport/libstlport_gcc.so
#6  0x40159675 in __static_initialization_and_destruction_0
(__initialize_p=1, __priority=65535) at iostream:75
#7  0x4015972b in
_GLOBAL__I__ZN5boost9unit_test9ut_detail25msvc65_like_log_formatterC2ERK
NS0_13unit_test_logE () at _iterator.h:153
#8  0x40159bb7 in __do_global_ctors_aux () from
/usr/local/lib/boost/libboost_test_exec_monitor.so
#9  0x401275d1 in _init () from
/usr/local/lib/boost/libboost_test_exec_monitor.so
#10 0x4000cdc9 in _dl_init (main_map=Variable "main_map" is not
available.
) at dl-init.c:68
#11 0x40000ca5 in _dl_start_user () at dl-machine.h:400
(gdb)

Thanks, in advance

Michael

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