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ci: refactor QEMU test workflow and extract scripts
The workflow now extracts cpubench results from QEMU output and automatically comments the result on pull requests. Improve CI workflow with QEMU, cpubench, timeout I notice that the cpu bench will make qemu into Scheduler mode: Preemptive so the qemu will not stop, add some trick to pass the test(not good) Refactor CI workflow for improved toolchain usage Comment out hello build and run step in CI workflow Update RISC-V toolchain and enable hello build step Add -bios none to QEMU commands in CI workflow Remove hello build and run step from CI workflow Add timeout to QEMU command in CI workflow Add completion message to cpubench CI step Allow QEMU step to pass without stopping CI job Fix merge conflict markers in CI workflow file Use Ubuntu 24.04 in CI workflow Remove merge conflict markers from error.c Remove merge conflict markers from error.h Remove redundant libc.h include from libc.c Delete libc.c Add CI scripts and refactor workflow - Move toolchain setup, build, QEMU run, and result extraction to dedicated scripts in .ci/ - Update ci.yml to use these scripts for improved maintainability Make CI scripts executable Add flexible test sequencing and CI test suites - Replace run-qemu.sh with run-test-sequence.sh for configurable, robust test execution (supports timeouts, app lists, output dirs, continue-on-failure, and verbosity) - Add run-qemu-tests.sh for simple sequential app testing - Add test suite definitions: basic.txt, performance.txt, comprehensive.txt - Overhaul extract-result.sh to aggregate, summarize, and format results for GitHub Actions and artifacts - Update CI workflow to run multiple test suites (basic, performance, comprehensive, custom), upload artifacts, and generate a consolidated summary - Remove obsolete run-qemu.sh script Simplify CI test runner and result extraction Comment PR with benchmark results in CI workflow Run all basic apps in CI and comment results on PRs Remove extract-result.sh and update CI to inline test output Update QEMU tests to run cpubench and test64 only Inline build steps in CI workflow and remove build.sh
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‎.ci/run-qemu-tests.sh

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#!/bin/bash
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set -e
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export CROSS_COMPILE=${CROSS_COMPILE:-riscv32-unknown-elf-}
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# Check if at least one app is provided
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if [ $# -eq 0 ]; then
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echo "Usage: $0 <app1> [app2] [app3] ..."
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echo "Example: $0 hello echo cpubench"
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exit 1
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fi
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APPS="$@"
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TIMEOUT=10
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echo "[+] Will run apps: $APPS"
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echo ""
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# Loop through each app
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for app in $APPS; do
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echo "=== Running $app ==="
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# Build the app
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echo "[+] Building $app..."
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make clean >/dev/null 2>&1
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if ! make "$app" >/dev/null 2>&1; then
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echo "[!] Failed to build $app"
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echo ""
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continue
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fi
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# Run in QEMU with timeout
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echo "[+] Running $app in QEMU (timeout: ${TIMEOUT}s)..."
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set +e
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timeout ${TIMEOUT}s qemu-system-riscv32 -nographic -machine virt -bios none -kernel build/image.elf
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exit_code=$?
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set -e
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# Print result
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if [ $exit_code -eq 124 ]; then
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echo "[!] $app timed out"
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elif [ $exit_code -eq 0 ]; then
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echo "[✓] $app completed successfully"
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else
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echo "[!] $app failed with exit code $exit_code"
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fi
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echo ""
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done
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echo "[+] All apps tested"

‎.ci/setup-toolchain.sh

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#!/bin/bash
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set -e
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URL="https://github.com/riscv-collab/riscv-gnu-toolchain/releases/download/2025.06.13/riscv32-elf-ubuntu-22.04-gcc-nightly-2025.06.13-nightly.tar.xz"
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echo "[+] Downloading RISC-V GNU toolchain..."
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wget "$URL"
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tar -xf "$(basename "$URL")"
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echo "[+] Exporting toolchain path..."
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echo "$PWD/riscv/bin" >> "$GITHUB_PATH"

‎.github/workflows/ci.yml

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name: Linmo CI (GNU Only)
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name: Linmo CI
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on:
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push:
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branches: [main, ci]
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pull_request:
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branches: [main, ci]
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push:
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branches: [main, ci]
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pull_request:
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branches: [main, ci]
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jobs:
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test:
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runs-on: ubuntu-latest
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steps:
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- name: Checkout
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uses: actions/checkout@v4
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- name: Install dependencies
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run: |
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sudo apt-get update
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sudo apt-get install -y build-essential qemu-system-riscv32 wget
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- name: Download RISC-V GNU Toolchain
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run: |
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wget https://github.com/riscv-collab/riscv-gnu-toolchain/releases/download/2025.06.13/riscv32-elf-ubuntu-22.04-gcc-nightly-2025.06.13-nightly.tar.xz
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tar -xf riscv32-elf-ubuntu-22.04-gcc-nightly-2025.06.13-nightly.tar.xz
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echo "$PWD/riscv/bin" >> $GITHUB_PATH
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- name: Verify toolchain installation
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run: |
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riscv32-unknown-elf-gcc --version
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qemu-system-riscv32 --version
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env:
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CROSS_COMPILE: riscv32-unknown-elf-
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- name: Build Linmo kernel
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run: |
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make clean
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make
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env:
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CROSS_COMPILE: riscv32-unknown-elf-
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- name: Build and run cpubench
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run: |
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make clean
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make cpubench
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timeout 5s qemu-system-riscv32 -nographic -machine virt -bios none -kernel build/image.elf || true
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echo "cpubench completed"
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env:
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CROSS_COMPILE: riscv32-unknown-elf-
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basic-tests:
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runs-on: ubuntu-24.04
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name: Basic Tests
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steps:
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- name: Checkout
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uses: actions/checkout@v4
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- name: Install dependencies
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run: |
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sudo apt-get update
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sudo apt-get install -y build-essential qemu-system-riscv32 wget
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- name: Setup RISC-V Toolchain
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run: .ci/setup-toolchain.sh
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- name: Verify toolchain installation
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run: |
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riscv32-unknown-elf-gcc --version
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qemu-system-riscv32 --version
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env:
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CROSS_COMPILE: riscv32-unknown-elf-
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- name: Build Kernel
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run: |
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make clean
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make
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env:
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CROSS_COMPILE: riscv32-unknown-elf-
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- name: Run Basic Apps
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id: test
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run: |
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output=$(.ci/run-qemu-tests.sh cpubench test64)
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echo "TEST_OUTPUT<<EOF" >> $GITHUB_OUTPUT
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echo "$output" >> $GITHUB_OUTPUT
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echo "EOF" >> $GITHUB_OUTPUT
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- name: Comment PR with results
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if: github.event_name == 'pull_request'
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uses: actions/github-script@v7
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with:
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script: |
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const output = `${{ steps.test.outputs.TEST_OUTPUT }}`;
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github.rest.issues.createComment({
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issue_number: context.issue.number,
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owner: context.repo.owner,
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repo: context.repo.repo,
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body: `## Linmo QEMU App Test Result\n\n\`\`\`\n${output}\n\`\`\`\n\n_This is an automated report from CI._`
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});

‎kernel/error.c

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{ERR_UNKNOWN, "unknown error"},
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};
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const struct error_code *const perror = error_desc;

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