.
Thread 1 (Thread 0x7f4981ba3700 (LWP 2348)):
#0  0x00007f498173707f in ?? () from /tmp/tmpP6kwoh/usr/lib/libperl.so.5.14
No symbol table info available.
#1  0x00007f498173c238 in Perl_regexec_flags () from /tmp/tmpP6kwoh/usr/lib/libperl.so.5.14
No symbol table info available.
#2  0x00007f49816d1c71 in Perl_pp_subst () from /tmp/tmpP6kwoh/usr/lib/libperl.so.5.14
No symbol table info available.
#3  0x00007f49816cbc86 in Perl_runops_standard () from /tmp/tmpP6kwoh/usr/lib/libperl.so.5.14
No symbol table info available.
#4  0x00007f498166d32a in perl_run () from /tmp/tmpP6kwoh/usr/lib/libperl.so.5.14
No symbol table info available.
#5  0x0000000000400db9 in main ()
No symbol table info available.