__cxa_atexit(0x402a20, 0, 0, 0x736c6974756572, 0xffffffffffbfb709) = 0 __cxa_atexit — register a function to be called by exit or when a shared library is unloaded http://refspecs.freestandards.org/LSB_3.1.0/LSB-Core-generic/LSB-Core-generic/baselib—cxa-atexit.html __cxa_atexit() is not in the source standard; it is only in the binary standard. a snapshot from the binary file. ^@__cxa_atexit^@GLIBC_2.3^@G http://www.answers.com/topic/binary-standard http://dictionary.reference.com/browse/standard http://en.wikipedia.org/wiki/Application_binary_interface atexit – register a function to …