problem in nios

hello

I turn an alogirithm in c++ under nios II but i have this error when I do run and not error when i do build

the error is :/cygdrive/c/altera/61/nios2eds/bin/nios2-gnutools/H-i686-pc-cygwin/bin/../lib/gcc/nios2-elf/3.4.1/../../../../nios2-elf/lib/libc.a(unlinkr.o) In function `_unlink_r': SEGMENTATION line 0

can someone help me

thank you