Application crashing even before entering main

Question

my application is built using QT 4.7.2 with webkit. It results in segfault on running.
Debugger shows that it crashes before entering main. where command of dbx shows the following info:
(dbx) where
current thread: t@1
=>[1] _memcpy(0x6e2000, 0xfffffffffffffe08, 0x4a616e75, 0x4a614b68, 0x0, 0x0), at 0x7bd31268
[2] std::basic_string<char,std::char_traits<char>,std::allocator<char> >::__clone(0x7bc83fec, 0x0, 0x4a616e75, 0x6dfcf8, 0x7bfff038, 0x6dfb00), at 0x7bf754f8
[3] std::basic_string<char,std::char_traits<char>,std::allocator<char> >::reserve(0x7bc83fec, 0xe, 0x0, 0x7, 0x6dfb00, 0x6dfb00), at 0x7bf6d7c0
[4] std::__copy<const char*,std::back_insert_iterator<std::basic_string<char,std::char_traits<char>,std::allocator<char> > >,int>(0xffbfe900, 0xffbfe8fc, 0x1, 0xffbfe8fc, 0x7bc837ab, 0x0), at 0x7bc3ef70
[5] std::_Init_timeinfo(0x7bc83ea8, 0xffbfe900, 0xffbfe8fc, 0x7bc83f50, 0x7bc83fec, 0x7bc837a4), at 0x7bc3cb78
[6] std::_Locale_impl::make_classic_locale(0x7bc83db0, 0x7bc83e98, 0x7bc83e9c, 0x7bc840a0, 0x7bc84094, 0x7c001300), at 0x7bc3fdf4
[7] std::locale::_S_initialize(0x7bc839ec, 0x1, 0x7bc7df6c, 0x7bc7df6c, 0x3d198, 0x0), at 0x7bc40df0
[8] __SLIP.INIT_A(0x0, 0x51c00, 0x4400, 0x7bc7df6c, 0x52414, 0x4630), at 0x7bc2bb78
[9] 0x7bc553d8(0x7fbf40fc, 0x7fbf5ad0, 0x2b3b4, 0x0, 0x7fbf4910, 0x821), at 0x7bc553d8
[10] call_init(0xc18081, 0x1, 0x7f8517d8, 0x7bc552e8, 0x7fbf4910, 0xffdfffff), at 0x7fbc52c0
[11] setup(0x200000, 0x2801, 0x602, 0x7fbf40fc, 0xc18001, 0x446), at 0x7fbc4828
[12] _setup(0x10034, 0xffffffff, 0x0, 0x7fbb0000, 0xffffffff, 0xffffffff), at 0x7fbd360c
[13] rtboot(0x0, 0x0, 0x0, 0x0, 0x0, 0x0), at 0x7fbb84c0
(dbx)
what could be possible reasons?
How to detect where is the problem?
Any pointers?

Answer 1

I am using Solaris 10 and compiler forte 12.0
my application is using following libraries:
Reading ld.so.1
Reading libQtScript.so.4.7.2
Reading libclucene.so.0
Reading libX11.so.4
Reading libnsl.so.1
Reading libsocket.so.1
Reading libQtWebKit.so.4
Reading libQtXml.so.4.7.2
Reading libQtGui.so.4.7.2
Reading libQtNetwork.so.4.7.2
Reading libQtCore.so.4.7.2
Reading libpthread.so.1
Reading librt.so.1
Reading libCstd.so.1
Reading libCrun.so.1
Reading libm.so.2
Reading libthread.so.1
Reading libc.so.1
Reading libstlport.so.1
Reading libXrender.so.1
Reading libresolv.so.2
Reading libxnet.so.1
Reading libXext.so.0
Reading libstlport.so.1
Reading libfreetype.so.6
Reading libSM.so.6
Reading libICE.so.6
Reading libdl.so.1
Reading libaio.so.1
Reading libmd.so.1
Reading libm.so.1
Reading libCstd_isa.so.1
dbx output is :;
(dbx) stop in main
(2) stop in main
(dbx) stop at main.cpp:1
(3) stop at "main.cpp":110
(dbx) run
(process id 6870)
Reading libc_psr.so.1
t@1 (l@1) signal SEGV (no mapping at the fault address) in _memcpy at 0x7f830e20
0x7f830e20: _memcpy+0x0660:     stda     %f32, [%o0] 0xf0
First I thought that there is problem with memcpy function of libc_psr.so , so I stopped loading of this
library by setting environment variable LD_NOAUXFLTR to false
But there is no success