0 0x28ac8b07 in thr_kill () from /lib/libc.so.7
1 0x28ac8afa in raise () from /lib/libc.so.7
2 0x28ac8a46 in abort () from /lib/libc.so.7
3 0x289171b5 in __gnu_cxx::__verbose_terminate_handler ()
at ../../.././../gcc-4.9-20140119/libstdc++-v3/libsupc++/vterminate.cc:95
4 0x28913f75 in __cxxabiv1::__terminate (
handler=0x28917020 <__gnu_cxx::__verbose_terminate_handler()>)
at ../../.././../gcc-4.9-20140119/libstdc++-v3/libsupc++/eh_terminate.cc:47
5 0x2891400c in std::terminate ()
at ../../.././../gcc-4.9-20140119/libstdc++-v3/libsupc++/eh_terminate.cc:57
6 0x28914277 in __cxxabiv1::__cxa_throw (obj=0x315b37e0,
tinfo=0x289ba57c <typeinfo for std::logic_error>, dest=
0x28932220 <std::logic_error::~logic_error()>)
at ../../.././../gcc-4.9-20140119/libstdc++-v3/libsupc++/eh_throw.cc:84
7 0x289797a2 in std::__throw_logic_error (
__s=__s@entry=0x2899206c "basic_string::_S_construct null not valid")
at ../../../.././../gcc-4.9-20140119/libstdc++-v3/src/c++11/functexcept.cc:71
8 0x28987f54 in std::string::_S_construct<char const*> (__beg=0x0,
__end=0xffffffff <error: Cannot access memory at address 0xffffffff>,
__a=...)
at /usr/ports/lang/gcc49/work/build/i386-portbld-freebsd9.2/libstdc++-v3/include/bits/basic_string.tcc:133