1FROM ubuntu:22.04 2 3RUN apt-get update && apt-get install -y --no-install-recommends \ 4 gcc libc6-dev qemu-user ca-certificates \ 5 gcc-riscv64-linux-gnu libc6-dev-riscv64-cross \ 6 qemu-system-riscv64 linux-headers-generic 7 8ENV CARGO_TARGET_RISCV64GC_UNKNOWN_LINUX_GNU_LINKER=riscv64-linux-gnu-gcc \ 9 CARGO_TARGET_RISCV64GC_UNKNOWN_LINUX_GNU_RUNNER="qemu-riscv64 -L /usr/riscv64-linux-gnu" \ 10 CC_riscv64gc_unknown_linux_gnu=riscv64-linux-gnu-gcc \ 11 CFLAGS_riscv64gc_unknown_linux_gnu="-mabi=lp64d -fPIC" \ 12 PATH=$PATH:/rust/bin 13