add basic ci config

Author: TheDeepestSpace

.github/workflows/ci.yaml

@@ -0,0 +1,29 @@
+name: RISC-V CI
+
+on:
+  push:
+  pull_request:
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    container:
+      image: ghcr.io/utoss/risc-v:ci
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Build testbench
+        run: make build_tb
+
+      - name: Run testbench
+        run: make run_tb
+
+      - name: Upload VCD files
+        uses: actions/upload-artifact@v4
+        if: always()
+        with:
+          name: vcd-files
+          path: test/out/*.vcd
+          retention-days: 7

Dockerfile.ci

@@ -0,0 +1,39 @@
+FROM public.ecr.aws/lts/ubuntu:22.04_stable
+
+ARG DEBIAN_FRONTEND=noninteractive
+ARG KEYRING_PATH=/usr/share/keyrings
+ARG APT_SOURCES_PATH=/etc/apt/sources.list.d
+
+# update and upgrade
+RUN apt update && apt upgrade -y
+
+# install essentialls
+RUN apt update && \
+    apt install -y \
+    man make build-essential git zsh vim curl wget procps gnupg gnupg2 ca-certificates zip \
+    software-properties-common
+
+# create dev sudo user
+RUN useradd --create-home dev && \
+    usermod --append --groups sudo dev && \
+    apt update && apt install -y sudo && \
+    echo '%sudo ALL=(ALL) NOPASSWD:ALL' >> /etc/sudoers
+
+# install dumb init system
+USER root
+RUN apt update && apt install -y dumb-init
+
+# build and install icarus verilog
+USER dev
+ARG ICARUS_SRC_TAR=v12_0.tar.gz
+ARG ICARUS_SRC_URL=https://github.com/steveicarus/iverilog/archive/refs/tags/${ICARUS_SRC_TAR}
+ARG ICARUS_SRC_HASH="a68cb1ef7c017ef090ebedb2bc3e39ef90ecc70a3400afb4aa94303bc3beaa7d  ${ICARUS_SRC_TAR}"
+RUN sudo apt update && sudo apt install -y autoconf gperf make gcc g++ bison flex && \
+    cd /tmp && \
+    wget ${ICARUS_SRC_URL} && \
+    echo ${ICARUS_SRC_HASH} | sha256sum -c && \
+    tar -xzf ${ICARUS_SRC_TAR} && \
+    cd iverilog-* && sh autoconf.sh && ./configure && make && make check && sudo make install && \
+    cd .. && rm ${ICARUS_SRC_TAR} && rm -rf ./iverilog-*
+
+ENTRYPOINT ["/usr/bin/dumb-init", "--"]