diff --git a/.github/workflows/coverage.yml b/.github/workflows/coverage.yml
new file mode 100644
index 0000000..dd1a3a5
--- /dev/null
+++ b/.github/workflows/coverage.yml
@@ -0,0 +1,92 @@
+name: "Code Coverage"
+
+on:
+  push:
+    paths:
+      - 'include/**.hpp'
+      - 'test/**.cpp'
+      - '**.cmake'
+      - 'conanfile.py'
+      - 'CMakeLists.txt'
+      - 'test/CMakeLists.txt'
+      - '.github/workflows/coverage.yml'
+  pull_request:
+    paths:
+      - 'include/**.hpp'
+      - 'test/**.cpp'
+      - '**.cmake'
+      - 'conanfile.py'
+      - 'CMakeLists.txt'
+      - 'test/CMakeLists.txt'
+      - '.github/workflows/coverage.yml'
+
+jobs:
+  coverage:
+    name: Ubuntu ${{matrix.compiler.cc}} Coverage
+    runs-on: ubuntu-20.04
+
+    env:
+      build-directory: build
+
+    strategy:
+      matrix:
+        compiler:
+          - { cc: gcc-10, cxx: g++-10 }
+          - { cc: clang-10, cxx: clang++-10 }
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v2
+
+      - name: Set up Python
+        uses: actions/setup-python@v1
+        with:
+          python-version: 3.7
+
+      - name: Prepare Environment
+        run: |
+          if [[ "${{matrix.compiler.cc}}" =~ "gcc" ]]; then
+            sudo apt-get install -y ${{matrix.compiler.cxx}}
+          else
+            sudo apt-get install -y ${{matrix.compiler.cxx}} llvm
+          fi
+          sudo apt-get install lcov
+          python -m pip install --upgrade pip
+          pip install conan
+          cmake -E make_directory ${{env.build-directory}}
+          cmake -E chdir ${{env.build-directory}} conan install ..
+
+      - name: Configure
+        working-directory: ${{env.build-directory}}
+        env:
+          CC: ${{matrix.compiler.cc}}
+          CXX: ${{matrix.compiler.cxx}}
+        run: |
+          cmake .. -DCMAKE_BUILD_TYPE=Debug -DBACKPORT_COMPILE_UNIT_TESTS=On -DCMAKE_CXX_FLAGS="--coverage"
+          cmake --build .
+
+      - name: Build
+        working-directory: ${{env.build-directory}}
+        run: cmake --build .
+
+      - name: Test
+        working-directory: ${{env.build-directory}}
+        run: ctest --output-on-failure
+
+      - name: Process Coverage Data
+        working-directory: ${{env.build-directory}}
+        run: |
+          gcov $(find $(pwd) -name '*.o' -type f)
+          # Generate coverage information
+          lcov --capture --directory . --output-file coverage_unfiltered.info
+          # Strip symbols from 'test' directory
+          lcov --remove coverage_unfiltered.info -o coverage.info             \
+            "$(cd ..; pwd)/test/*"                                            \
+            "${HOME}/.conan/*"                                                \
+            "/usr/*"                                                          \
+
+      - name: Generate Coverage
+        uses: coverallsapp/github-action@v1.1.2
+        with:
+          github-token: ${{secrets.GITHUB_TOKEN}}
+          path-to-lcov: ${{env.build-directory}}/coverage.info
diff --git a/README.md b/README.md
index bb48f00..218a7c7 100644
--- a/README.md
+++ b/README.md
@@ -4,11 +4,14 @@
 [![macOS Build Status](https://github.com/bitwizeshift/BackportCpp/workflows/macOS/badge.svg?branch=master)](https://github.com/bitwizeshift/BackportCpp/actions?query=workflow%3AmacOS)
 [![Windows Build Status](https://github.com/bitwizeshift/BackportCpp/workflows/Windows/badge.svg?branch=master)](https://github.com/bitwizeshift/BackportCpp/actions?query=workflow%3AWindows)
 [![Codacy Badge](https://api.codacy.com/project/badge/Grade/64b1ffd7f95b488eb70a11ee21eb1792)](https://www.codacy.com/manual/bitwizeshift/BackportCpp?utm_source=github.com&utm_medium=referral&utm_content=bitwizeshift/BackportCpp&utm_campaign=Badge_Grade)
+[![Coverage Status](https://coveralls.io/repos/github/bitwizeshift/BackportCpp/badge.svg?branch=master)](https://coveralls.io/github/bitwizeshift/BackportCpp?branch=master)
 [![Github Issues](https://img.shields.io/github/issues/bitwizeshift/BackportCpp.svg)](http://github.com/bitwizeshift/BackportCpp/issues)
 <br>
 [![Github Releases](https://img.shields.io/github/v/release/bitwizeshift/BackportCpp.svg?include_prereleases)](https://github.com/bitwizeshift/BackportCpp/releases)
 [![Bintray Releases](https://api.bintray.com/packages/bitwizeshift/public-conan/Backport%3Abackport/images/download.svg) ](https://bintray.com/bitwizeshift/public-conan/Backport%3Abackport/_latestVersion)
 
+------------------------------
+
 **Backport** is an ongoing effort to bring modern C++ utilities to be compatible
 with C++11.
 
diff --git a/include/bpstd/detail/config.hpp b/include/bpstd/detail/config.hpp
index 0fdea82..8066b0f 100644
--- a/include/bpstd/detail/config.hpp
+++ b/include/bpstd/detail/config.hpp
@@ -73,9 +73,9 @@
 // When using 'clang-cl', don't forceinline -- since it results in code generation
 // failures in 'variant'
 #if defined(__clang__) && defined(_MSC_VER)
-# define BPSTD_INLINE_VISIBILITY __attribute__((visibility("hidden"), no_instrument_function))
+# define BPSTD_INLINE_VISIBILITY __attribute__((visibility("hidden")))
 #elif defined(__clang__) || defined(__GNUC__)
-# define BPSTD_INLINE_VISIBILITY __attribute__((visibility("hidden"), always_inline, no_instrument_function))
+# define BPSTD_INLINE_VISIBILITY __attribute__((visibility("hidden"), always_inline))
 #elif defined(_MSC_VER)
 # define BPSTD_INLINE_VISIBILITY __forceinline
 #else
@@ -86,7 +86,7 @@
 # define BPSTD_COMPILER_DIAGNOSTIC_PREAMBLE \
   __pragma(warning(push)) \
   __pragma(warning(disable:4714)) \
-  __pragma(warning(disable:4100)) 
+  __pragma(warning(disable:4100))
 #else
 # define BPSTD_COMPILER_DIAGNOSTIC_PREAMBLE
 #endif