file /nix/store/ijxm784gr0sx5p4d92rlag0ippyd0mvm-am-kernel-riscv32-none-elf-2024-07-10/libexec/am-kernels/demo

set substitute-path /build/am-kernels /home/xin/repo/ysyx-workbench/am-kernels
set substitute-path /build/abstract-machine /home/xin/repo/ysyx-workbench/abstract-machine
# set debug remote 1
target remote /tmp/gdbstub-diffu.sock
break *halt + 24