tustshen

libre can work based the thirdpary Lwip? transplant libre to os rt-thread , and rt-thread is based on Lwip，funtion invoke：nsc_alloc()-->udp_listen() -->getaddrinfo() [lwip_getaddrinfo()], then crash! help!

(gdb) bt #0 0x0009939a in sm4_one_round () Backtrace stopped: Cannot access memory at address 0x19b84582 看源码应该是移位的过程中发生的断错误