• finish print return value of current function
• step next source line
• stepi one machine instruction
• next same as step but skip function
• nexti same as stepi but skip function

echo 0 > /proc/sys/kernel/yama/ptrace_scope

thread apply all bt

• on remote site:

gdbserver --attach :10000 <pid>

• on local site:

arm-linux-gnueabihf-gdb -x sysroot-file.gdbinit -ex 'target extended-remote <remoteip>:10000' -ex 'set remote exec-file <remote binary>' --args <local binary with debug>