Debugging c code tips?

So to get GDB working i need to hardcode the file and the arm directory.

make -j BOARD=P8-SDK12-SPIFLASH PROJECTNAME=./bin/espruino_2v19.88_p8_SDK12_SD30_SPIFLASH -j8 flash gdb

## ARM.make
./gcc-arm-none-eabi-8-2018-q4-major/bin/arm-none-eabi-gdb -x gdbinit