For the difference between buildroot tiny and buildroot devel, please diff the file configs/buildroot/arm64_tiny_defconfig and configs/buildroot/arm64_devel_defconfig.
To enable gdb in buildroot:tiny rootfs, please execute the following commands.
$ flex-builder -m ls1043ardb -i clean-rfs -r buildroot:tiny
$ flex-builder -m ls1043ardb -i mkrfs -r buildroot:tiny:custom
Then select "gdb "in Target packages--> Debugging,profiling and benchmark --> gdb, select "full debugger"
Then execute the following command.
$ flex-builder -m ls1043ardb -i mkrfs -r buildroot:tiny
