Add xtask crate for loader building

.cargo/config.toml

@@ -1,16 +1,2 @@
-[unstable]
-build-std = ["core", "alloc"]
-build-std-features = ["compiler-builtins-mem"]
-
-[target.x86_64-unknown-hermit-loader]
-rustflags = [
-  "-C", "link-arg=-Tsrc/arch/x86_64/link.ld"
-]
-
-[target.aarch64-unknown-hermit-loader]
-rustflags = [
-  "-C", "link-arg=-Tsrc/arch/aarch64/link.ld"
-]
-
-[build]
-target = "targets/x86_64-unknown-hermit-loader.json"
+[alias]
+xtask = "run --package xtask --"

.github/workflows/ci.yml

@@ -25,7 +25,7 @@ jobs:
           sudo apt-get install nasm
       - uses: actions/checkout@v3
       - name: Clippy
-        run: cargo clippy
+        run: cargo xtask clippy
         env:
           RUSTFLAGS: -Dwarnings
 
@@ -55,18 +55,20 @@ jobs:
         run: |
           brew update
           brew install qemu nasm
-      - name: Install QEMU, NASM, GNU make (windows)
+      - name: Install QEMU, NASM (windows)
         if: matrix.os == 'windows-latest'
         run: |
           choco install qemu --version 2021.12.15
           echo "C:\Program Files\qemu" >> $GITHUB_PATH
-          choco install nasm make
+          choco install nasm
           echo "C:\Program Files\NASM" >> $GITHUB_PATH
       - uses: actions/checkout@v3
         with:
             lfs: true
       - name: Build
-        run: make arch=${{ matrix.arch }}
+        run: cargo xtask build --arch ${{ matrix.arch }}
+        env:
+          HERMIT_APP: ${{ github.workspace }}/data/${{ matrix.arch }}/hello_world
       - name: Run loader (x86_64)
         if: matrix.arch == 'x86_64'
         run: |
@@ -75,17 +77,19 @@ jobs:
             -smp 1 -m 64M \
             -device isa-debug-exit,iobase=0xf4,iosize=0x04 \
             -display none -serial stdio \
-            -kernel target/x86_64-unknown-hermit-loader/debug/rusty-loader \
+            -kernel target/x86_64/debug/rusty-loader \
             -initrd data/x86_64/hello_world
       - name: Run loader (aarch64)
         if: matrix.arch == 'aarch64'
         run: |
           qemu-system-aarch64 \
             -machine virt,gic-version=max -cpu max -smp 1 -m 512M \
             -display none -serial stdio -semihosting \
-            -kernel target/aarch64-unknown-hermit-loader/debug/rusty-loader
+            -kernel target/aarch64/debug/rusty-loader
       - name: Build (release)
-        run: make arch=${{ matrix.arch }} release=1
+        run: cargo xtask build --arch ${{ matrix.arch }} --release
+        env:
+          HERMIT_APP: ${{ github.workspace }}/data/${{ matrix.arch }}/hello_world
       - name: Run loader (release, x86_64)
         if: matrix.arch == 'x86_64'
         run: |
@@ -94,15 +98,15 @@ jobs:
             -smp 1 -m 64M \
             -device isa-debug-exit,iobase=0xf4,iosize=0x04 \
             -display none -serial stdio \
-            -kernel target/x86_64-unknown-hermit-loader/release/rusty-loader \
+            -kernel target/x86_64/release/rusty-loader \
             -initrd data/x86_64/hello_world
       - name: Run loader (release, aarch64)
         if: matrix.arch == 'aarch64'
         run: |
           qemu-system-aarch64 \
             -machine virt,gic-version=max -cpu max -smp 1 -m 512M \
             -display none -serial stdio -semihosting \
-            -kernel target/aarch64-unknown-hermit-loader/release/rusty-loader
+            -kernel target/aarch64/release/rusty-loader
     
 
 

.gitlab-ci.yml

@@ -32,10 +32,10 @@ build:loader:
   stage: build
   image: ${CI_REGISTRY_IMAGE}
   script:
-    - make release=1
+    - cargo xtask build --arch x86_64 --release
   artifacts:
     paths:
-      - target/x86_64-unknown-hermit-loader/release/rusty-loader
+      - target/x86_64/release/rusty-loader
 
 .deploy:loader: &loader
    stage: deploy
@@ -51,7 +51,7 @@ build:loader:
        cat << END > ${DOCKER_FILE}
        FROM alpine:3.14
        RUN apk add --no-cache qemu-system-x86_64 qemu-modules
-       ADD target/x86_64-unknown-hermit-loader/release/rusty-loader /hermit/
+       ADD target/x86_64/release/rusty-loader /hermit/
        END
      - docker build -f ${DOCKER_FILE} -t ${DOCKER_IMAGE}/loader:latest .
      - docker push ${DOCKER_IMAGE}/loader:latest

Cargo.toml

@@ -25,3 +25,8 @@ opt-level = 1  # `opt-level = 0` makes bootloader to large for bootstrapping
 strip = "debuginfo"
 lto = true
 codegen-units = 1
+
+[workspace]
+members = [
+	"xtask",
+]

README.md

@@ -13,10 +13,10 @@ You also need `nasm` and `ar` installed on your machine.
 Afterwards, the loader can be built as follows:
 
 ```bash
-$ make
+$ cargo xtask build --arch x86_64
 ```
 
-Afterwards, the loader is stored in `target/x86_64-unknown-hermit-loader/debug/` as `rusty-loader`.
+Afterwards, the loader is stored in `target/x86_64/debug/` as `rusty-loader`.
 As final step the unikernel application `app` can be booted with following command:
 
 ```bash

xtask/.gitignore

@@ -0,0 +1 @@
+/target

xtask/Cargo.toml

@@ -0,0 +1,10 @@
+[package]
+name = "xtask"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
+anyhow = "1.0"
+rustc_version = "0.4"
+xflags = "0.2"
+xshell = "0.2"

xtask/src/flags.rs

@@ -0,0 +1,75 @@
+use std::path::PathBuf;
+
+xflags::xflags! {
+	src "./src/flags.rs"
+
+	/// Run custom build command.
+	cmd xtask {
+		default cmd help {
+			/// Print help information.
+			optional -h, --help
+		}
+
+		/// Build the kernel.
+		cmd build
+		{
+			/// Build for the architecture.
+			required --arch arch: String
+			/// Directory for all generated artifacts.
+			optional --target-dir target_dir: PathBuf
+			/// Build artifacts in release mode, with optimizations.
+			optional -r, --release
+			/// Build artifacts with the specified profile.
+			optional --profile profile: String
+		}
+
+		/// Run clippy for all targets.
+		cmd clippy {}
+	}
+}
+
+// generated start
+// The following code is generated by `xflags` macro.
+// Run `env UPDATE_XFLAGS=1 cargo build` to regenerate.
+#[derive(Debug)]
+pub struct Xtask {
+	pub subcommand: XtaskCmd,
+}
+
+#[derive(Debug)]
+pub enum XtaskCmd {
+	Help(Help),
+	Build(Build),
+	Clippy(Clippy),
+}
+
+#[derive(Debug)]
+pub struct Help {
+	pub help: bool,
+}
+
+#[derive(Debug)]
+pub struct Build {
+	pub arch: String,
+	pub target_dir: Option<PathBuf>,
+	pub release: bool,
+	pub profile: Option<String>,
+}
+
+#[derive(Debug)]
+pub struct Clippy;
+
+impl Xtask {
+	pub const HELP: &'static str = Self::HELP_;
+
+	#[allow(dead_code)]
+	pub fn from_env() -> xflags::Result<Self> {
+		Self::from_env_()
+	}
+
+	#[allow(dead_code)]
+	pub fn from_vec(args: Vec<std::ffi::OsString>) -> xflags::Result<Self> {
+		Self::from_vec_(args)
+	}
+}
+// generated end