riscv_toolchain in docker

add16.c

#include <stdio.h>

int test(int a[], int b[]) {
    asm volatile(
        "ld a2, 0(a0)\n\t"
        "ld a3, 0(a1)\n\t"
        "add16 a2, a2, a3 \n\t"
        "sd a2, 0(a0)\n\t"
    );
}

int main() {
    int a[1] = {0x1234ffff};
    int b[1] = {0x11112222};
    test(a, b);
    printf("%x\n", a[0]);
    return 0;
}

add8.c

#include <stdio.h>

int test(int a[], int b[]) {
    asm volatile(
        "ld a2, 0(a0)\n\t"
        "ld a3, 0(a1)\n\t"
        "add8 a2, a2, a3 \n\t"
        "sd a2, 0(a0)\n\t"
    );
}

int main() {
    int a[1] = {0x11111178};
    int b[1] = {0x111111f2};
    test(a, b);
    printf("%x\n", a[0]);
    return 0;
}

dockerfile

FROM ubuntu:18.04
MAINTAINER BeMg

RUN apt-get update && apt-get install -y git autoconf automake autotools-dev curl libmpc-dev libmpfr-dev libgmp-dev libusb-1.0-0-dev gawk \
 build-essential bison flex texinfo gperf libtool patchutils bc zlib1g-dev device-tree-compiler pkg-config libexpat-dev && mkdir risc-v
ENV RISCV /risc-v
RUN git clone --recursive https://github.com/riscv/riscv-gnu-toolchain && \
    cd riscv-gnu-toolchain && ./configure --prefix=$RISCV && make -j4 && \
    rm -rf riscv-binutils && git clone https://github.com/BeMg/riscv-bintuils.git riscv-binutils && \
    cd riscv-binutils && ./configure --prefix=$RISCV --target=riscv64-unknown-elf && make -j4 && make install -j4
RUN git clone https://github.com/riscv/riscv-tools.git 
RUN cd riscv-tools && git submodule update --init riscv-pk && git submodule update --init riscv-fesvr && rm -rf riscv-isa-sim && git clone https://github.com/BeMg/riscv-isa-sim.git && \
     ./build-spike-pk.sh && cd / && rm -rf riscv-tools && echo "export PATH=$PATH:/risc-v/bin" >> ~/.bashrc