newlib uses significantly more stack space when printing to an unbuffered stream. To reduce the amount of stack space required to use the console, don’t disable buffering. linenoise should support unbuffered stdout instead.
Based on app-trace component, it's able to send sniffer packets to host via JTAG interface.
1. add mount/unmount command 2. add sniffer command, supporting options 3. make pcap a component