Merge branch 'post-02' into post-03

.cargo/config.toml

@@ -1,3 +1,6 @@
+[unstable]
+build-std = ["core", "compiler_builtins"]
+
 [build]
 target = "x86_64-blog_os.json"
 

.github/workflows/build-code.yml

@@ -12,9 +12,8 @@ on:
   pull_request:
 
 jobs:
-  test:
+  check:
-    name: "Test"
+    name: Check
-
     strategy:
       matrix:
         platform: [
@@ -22,49 +21,83 @@ jobs:
           macos-latest,
           windows-latest
         ]
-
     runs-on: ${{ matrix.platform }}
-    timeout-minutes: 15
-
     steps:
-    - name: "Checkout Repository"
+      - name: Checkout Repository
-      uses: actions/checkout@v1
+        uses: actions/checkout@v2
-
+      - name: Install Rust Toolchain
-    - name: Install Rustup
+        uses: actions-rs/toolchain@v1
-      run: |
+        with:
-        curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y --default-toolchain nightly
+          profile: minimal
-        echo ::add-path::$HOME/.cargo/bin
+          toolchain: nightly
-      if: runner.os == 'macOS'
+      - name: Install `rust-src` Rustup Component
-
+        run: rustup component add rust-src
-    - name: "Print Rust Version"
+      - name: Run `cargo check`
-      run: |
+        uses: actions-rs/cargo@v1
-        rustc -Vv
+        with:
-        cargo -Vv
+          command: check
-
-    - name: "Install Rustup Components"
-      run: rustup component add rust-src llvm-tools-preview
-    - name: "Install cargo-xbuild"
-      run: cargo install cargo-xbuild --debug
-    - name: "Install bootimage"
-      run: cargo install bootimage --debug
-
-    - name: "Run cargo xbuild"
-      run: cargo xbuild
-    - name: "Create Bootimage"
-      run: cargo bootimage
 
+  test:
+    name: Test
+    strategy:
+      matrix:
+        platform: [
+          ubuntu-latest,
+          macos-latest,
+          windows-latest
+        ]
+    runs-on: ${{ matrix.platform }}
+    steps:
+      - name: Install Rust Toolchain
+        uses: actions-rs/toolchain@v1
+        with:
+          profile: minimal
+          toolchain: nightly
+      - name: Install bootimage
+        run: cargo install bootimage --debug
+      - name: Checkout Repository
+        uses: actions/checkout@v2
+      - name: Install Rustup Components
+        run: rustup component add rust-src llvm-tools-preview
+      - name: Run `cargo bootimage`
+        uses: actions-rs/cargo@v1
+        with:
+          command: bootimage
 
   check_formatting:
-    name: "Check Formatting"
+    name: Check Formatting
     runs-on: ubuntu-latest
-    timeout-minutes: 2
     steps:
-    - uses: actions/checkout@v1
+      - name: Checkout Repository
-    - name: "Use the latest Rust nightly with rustfmt"
+        uses: actions/checkout@v2
-      uses: actions-rs/toolchain@v1
+      - name: Install Rust Toolchain
-      with:
+        uses: actions-rs/toolchain@v1
-          toolchain: nightly
+        with:
           profile: minimal
+          toolchain: nightly
           components: rustfmt
           override: true
-    - run: cargo fmt -- --check
+      - name: Run `cargo fmt`
+        uses: actions-rs/cargo@v1
+        with:
+          command: fmt
+          args: --all -- --check
+
+  clippy:
+    name: Clippy
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout Repository
+        uses: actions/checkout@v2
+      - name: Install Rust Toolchain
+        uses: actions-rs/toolchain@v1
+        with:
+          profile: minimal
+          toolchain: nightly
+          components: clippy, rust-src
+          override: true
+      - name: Run `cargo clippy`
+        uses: actions-rs/cargo@v1
+        with:
+          command: clippy
+          args: -- -D warnings

Cargo.lock

@@ -6,15 +6,16 @@ version = "0.1.0"
 dependencies = [
  "bootloader",
  "lazy_static",
+ "rlibc",
  "spin",
  "volatile",
 ]
 
 [[package]]
 name = "bootloader"
-version = "0.9.3"
+version = "0.9.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "44ac0bdf4930c3c4d7f0d04eb6f15d7dcb9d5972b1ff9cd2bee0128112260fc7"
+checksum = "0ad686b9b47363de7d36c05fb6885f17d08d0f2d15b1bc782a101fe3c94a2c7c"
 
 [[package]]
 name = "lazy_static"
@@ -25,6 +26,12 @@ dependencies = [
  "spin",
 ]
 
+[[package]]
+name = "rlibc"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fc874b127765f014d792f16763a81245ab80500e2ad921ed4ee9e82481ee08fe"
+
 [[package]]
 name = "spin"
 version = "0.5.2"

Cargo.toml

@@ -5,7 +5,8 @@ authors = ["Philipp Oppermann <dev@phil-opp.com>"]
 edition = "2018"
 
 [dependencies]
-bootloader = "0.9.3"
+bootloader = "0.9.8"
+rlibc = "1.0.0"
 volatile = "0.2.6"
 spin = "0.5.2"
 

src/main.rs

@@ -1,6 +1,8 @@
 #![no_std]
 #![no_main]
 
+extern crate rlibc;
+
 use core::panic::PanicInfo;
 
 mod vga_buffer;