diff --git a/.cargo/config b/.cargo/config.toml
similarity index 62%
rename from .cargo/config
rename to .cargo/config.toml
index 7f2ad55d..657f10e0 100644
--- a/.cargo/config
+++ b/.cargo/config.toml
@@ -1,3 +1,6 @@
+[unstable]
+build-std = ["core", "compiler_builtins", "alloc"]
+
 [build]
 target = "x86_64-blog_os.json"
 
diff --git a/.github/workflows/build-code.yml b/.github/workflows/build-code.yml
index cd7c26be..d35b8d68 100644
--- a/.github/workflows/build-code.yml
+++ b/.github/workflows/build-code.yml
@@ -12,9 +12,8 @@ on:
   pull_request:
 
 jobs:
-  test:
-    name: "Test"
-
+  check:
+    name: Check
     strategy:
       matrix:
         platform: [
@@ -22,75 +21,111 @@ jobs:
           macos-latest,
           windows-latest
         ]
-
     runs-on: ${{ matrix.platform }}
-    timeout-minutes: 15
-
     steps:
-    - name: "Checkout Repository"
-      uses: actions/checkout@v1
+      - name: Checkout Repository
+        uses: actions/checkout@v2
+      - name: Install Rust Toolchain
+        uses: actions-rs/toolchain@v1
+        with:
+          profile: minimal
+          toolchain: nightly
+      - name: Install `rust-src` Rustup Component
+        run: rustup component add rust-src
+      - name: Run `cargo check`
+        uses: actions-rs/cargo@v1
+        with:
+          command: check
 
-    - name: Install Rustup
-      run: |
-        curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y --default-toolchain nightly
-        echo ::add-path::$HOME/.cargo/bin
-      if: runner.os == 'macOS'
+  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
 
-    - name: "Print Rust Version"
-      run: |
-        rustc -Vv
-        cargo -Vv
+      # install QEMU
+      - name: Install QEMU (Linux)
+        run: sudo apt update && sudo apt install qemu-system-x86
+        if: runner.os == 'Linux'
+      - name: Install QEMU (macOS)
+        run: brew install qemu
+        if: runner.os == 'macOS'
+        env:
+          HOMEBREW_NO_AUTO_UPDATE: 1
+          HOMEBREW_NO_BOTTLE_SOURCE_FALLBACK: 1
+          HOMEBREW_NO_INSTALL_CLEANUP: 1
+      - name: Install Scoop (Windows)
+        run: |
+          Invoke-Expression (New-Object System.Net.WebClient).DownloadString('https://get.scoop.sh')
+          echo ::add-path::$HOME\scoop\shims
+        if: runner.os == 'Windows'
+        shell: pwsh
+      - name: Install QEMU (Windows)
+        run: scoop install qemu
+        if: runner.os == 'Windows'
+        shell: pwsh
+      - name: "Print QEMU Version"
+        run: qemu-system-x86_64 --version
 
-    - 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
-
-     # install QEMU
-    - name: Install QEMU (Linux)
-      run: sudo apt update && sudo apt install qemu-system-x86
-      if: runner.os == 'Linux'
-    - name: Install QEMU (macOS)
-      run: brew install qemu
-      if: runner.os == 'macOS'
-      env:
-        HOMEBREW_NO_AUTO_UPDATE: 1
-        HOMEBREW_NO_BOTTLE_SOURCE_FALLBACK: 1
-        HOMEBREW_NO_INSTALL_CLEANUP: 1
-    - name: Install Scoop (Windows)
-      run: |
-        Invoke-Expression (New-Object System.Net.WebClient).DownloadString('https://get.scoop.sh')
-        echo ::add-path::$HOME\scoop\shims
-      if: runner.os == 'Windows'
-      shell: pwsh
-    - name: Install QEMU (Windows)
-      run: scoop install qemu
-      if: runner.os == 'Windows'
-      shell: pwsh
-    - name: "Print QEMU Version"
-      run: qemu-system-x86_64 --version
-
-    - name: "Run cargo xtest"
-      run: cargo xtest
+      - name: Run `cargo test`
+        uses: actions-rs/cargo@v1
+        with:
+          command: test
 
   check_formatting:
-    name: "Check Formatting"
+    name: Check Formatting
     runs-on: ubuntu-latest
-    timeout-minutes: 2
     steps:
-    - uses: actions/checkout@v1
-    - name: "Use the latest Rust nightly with rustfmt"
-      uses: actions-rs/toolchain@v1
-      with:
-          toolchain: nightly
+      - name: Checkout Repository
+        uses: actions/checkout@v2
+      - name: Install Rust Toolchain
+        uses: actions-rs/toolchain@v1
+        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
diff --git a/Cargo.lock b/Cargo.lock
index 3952ce33..49bc35f1 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -21,6 +21,7 @@ dependencies = [
  "linked_list_allocator",
  "pc-keyboard",
  "pic8259_simple",
+ "rlibc",
  "spin",
  "uart_16550",
  "volatile",
@@ -29,9 +30,9 @@ dependencies = [
 
 [[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 = "cpuio"
@@ -81,6 +82,12 @@ dependencies = [
  "cpuio",
 ]
 
+[[package]]
+name = "rlibc"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fc874b127765f014d792f16763a81245ab80500e2ad921ed4ee9e82481ee08fe"
+
 [[package]]
 name = "scopeguard"
 version = "1.1.0"
diff --git a/Cargo.toml b/Cargo.toml
index 38823564..0d0d4349 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -13,7 +13,8 @@ name = "stack_overflow"
 harness = false
 
 [dependencies]
-bootloader = { version = "0.9.3", features = ["map_physical_memory"]}
+bootloader = { version = "0.9.8", features = ["map_physical_memory"]}
+rlibc = "1.0.0"
 volatile = "0.2.6"
 spin = "0.5.2"
 x86_64 = "0.11.0"
diff --git a/src/lib.rs b/src/lib.rs
index d438d5b2..76f499d5 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -9,6 +9,7 @@
 #![reexport_test_harness_main = "test_main"]
 
 extern crate alloc;
+extern crate rlibc;
 
 use core::panic::PanicInfo;