ci(windows): optionally test windows with ASAN

Add the label `ci:windows-asan` to enable it.

5 files changed, 83 insertions, 60 deletions

diff --git a/.github/workflows/optional.yml b/.github/workflows/optional.yml
index 84d71821c5..742d51377f 100644
--- a/.github/workflows/optional.yml
+++ b/.github/workflows/optional.yml
@@ -46,3 +46,10 @@ jobs:
             runuser -u qemuci -- cmake -B build -G Ninja -D CI_BUILD=ON -D PREFER_LUA=ON &&
             runuser -u qemuci -- make ${{ matrix.test }}
             "
+
+  windows-asan:
+    if: contains(github.event.pull_request.labels.*.name, 'ci:windows-asan') || github.event_name == 'workflow_dispatch'
+    uses: ./.github/workflows/test_windows.yml
+    with:
+      build_flags: "-D ENABLE_ASAN_UBSAN=ON"
+      functionaltest_timeout: 40
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index cf1ea48506..d383d96de2 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -193,65 +193,7 @@ jobs:
         run: cat $(find "$LOG_DIR" -type f)
 
   windows:
-    runs-on: windows-2022
-    timeout-minutes: 45
-    strategy:
-      fail-fast: false
-      matrix:
-        test: [functional, old]
-    steps:
-      - uses: actions/checkout@v4
-      - uses: ./.github/actions/setup
-
-      - name: Build deps
-        run: |
-          cmake -S cmake.deps -B .deps -G Ninja -D CMAKE_BUILD_TYPE='RelWithDebInfo'
-          cmake --build .deps
-
-      - name: Build
-        run: |
-          cmake --preset ci -D CMAKE_BUILD_TYPE='RelWithDebInfo'
-          cmake --build build
-
-      - name: Install test deps
-        run: |
-          $PSNativeCommandArgumentPassing = 'Legacy'
-
-          & build\bin\nvim.exe "--version"
-
-          # Ensure that the "win32" feature is set.
-          & build\bin\nvim -u NONE --headless -c 'exe !has(\"win32\").\"cq\"'
-
-          python -m pip install pynvim
-          # Sanity check
-          python -c "import pynvim; print(str(pynvim))"
-
-          node --version
-          npm.cmd --version
-
-          npm.cmd install -g neovim
-          Get-Command -CommandType Application neovim-node-host.cmd
-          npm.cmd link neovim
-
-      - if: ${{ matrix.test == 'functional' }}
-        name: functionaltest
-        timeout-minutes: 20
-        run: cmake --build build --target functionaltest
-
-      - if: ${{ matrix.test == 'old' }}
-        uses: msys2/setup-msys2@v2
-        with:
-          update: true
-          pacboy: >-
-            make:p gcc:p diffutils:p
-          release: false
-
-      - if: ${{ matrix.test == 'old' }}
-        name: oldtest
-        shell: msys2 {0}
-        run: |
-          cd test/old/testdir
-          mingw32-make VERBOSE=1
+    uses: ./.github/workflows/test_windows.yml
 
   # This job tests the following things:
   # - Check if Release, MinSizeRel and RelWithDebInfo compiles correctly.
diff --git a/.github/workflows/test_windows.yml b/.github/workflows/test_windows.yml
new file mode 100644
index 0000000000..fec2275cbd
--- /dev/null
+++ b/.github/workflows/test_windows.yml
@@ -0,0 +1,71 @@
+name: windows
+on:
+  workflow_call:
+    inputs:
+      build_flags:
+        type: string
+      functionaltest_timeout:
+        default: 20
+        type: number
+
+jobs:
+  windows:
+    runs-on: windows-2022
+    timeout-minutes: 45
+    strategy:
+      fail-fast: false
+      matrix:
+        test: [functional, old]
+    steps:
+      - uses: actions/checkout@v4
+      - uses: ./.github/actions/setup
+
+      - name: Build deps
+        run: |
+          cmake -S cmake.deps -B .deps -G Ninja -D CMAKE_BUILD_TYPE='RelWithDebInfo'
+          cmake --build .deps
+
+      - name: Build
+        run: |
+          cmake --preset ci -D CMAKE_BUILD_TYPE='RelWithDebInfo' ${{ inputs.build_flags }}
+          cmake --build build
+
+      - name: Install test deps
+        run: |
+          $PSNativeCommandArgumentPassing = 'Legacy'
+
+          & build\bin\nvim.exe "--version"
+
+          # Ensure that the "win32" feature is set.
+          & build\bin\nvim -u NONE --headless -c 'exe !has(\"win32\").\"cq\"'
+
+          python -m pip install pynvim
+          # Sanity check
+          python -c "import pynvim; print(str(pynvim))"
+
+          node --version
+          npm.cmd --version
+
+          npm.cmd install -g neovim
+          Get-Command -CommandType Application neovim-node-host.cmd
+          npm.cmd link neovim
+
+      - if: ${{ matrix.test == 'functional' }}
+        name: functionaltest
+        timeout-minutes: ${{ inputs.functionaltest_timeout }}
+        run: cmake --build build --target functionaltest
+
+      - if: ${{ matrix.test == 'old' }}
+        uses: msys2/setup-msys2@v2
+        with:
+          update: true
+          pacboy: >-
+            make:p gcc:p diffutils:p
+          release: false
+
+      - if: ${{ matrix.test == 'old' }}
+        name: oldtest
+        shell: msys2 {0}
+        run: |
+          cd test/old/testdir
+          mingw32-make VERBOSE=1
diff --git a/MAINTAIN.md b/MAINTAIN.md
index b2434d6259..09f3efbed2 100644
--- a/MAINTAIN.md
+++ b/MAINTAIN.md
@@ -232,6 +232,7 @@ Some github labels are used to trigger certain jobs:
 * `backport release-x.y` - backport to release branch
 * `ci:s390x` - enable s390x CI
 * `ci:skip-news` - skip news.yml workflows
+* `ci:windows-asan` - test windows with ASAN enabled
 * `needs:response` - close PR after a certain amount of time if author doesn't
   respond
 
diff --git a/src/nvim/main.c b/src/nvim/main.c
index 361d43393b..50d1a5a735 100644
--- a/src/nvim/main.c
+++ b/src/nvim/main.c
@@ -14,7 +14,9 @@
 #include <string.h>
 #ifdef ENABLE_ASAN_UBSAN
 # include <sanitizer/asan_interface.h>
-# include <sanitizer/ubsan_interface.h>
+# ifndef MSWIN
+#  include <sanitizer/ubsan_interface.h>
+# endif
 #endif
 
 #include "auto/config.h"  // IWYU pragma: keep