ChipWhisperer en mode MPSSE / Débogage avec OpenOCD et GDB

Hello everyone can someone explain how to do debugging the target fe310 i have read all the documentation i installed the toolchain and compiled program this step work . the problem is i
want to debug fe310 , i can’t use the function " " . need I to install openOcd from siFive or the openocd from chipwhisperer work. and can someone tell me exactly how to debug i am tired of repeating without any result thanks .