headers: fail Build on missing native exports and assert MI/COM layouts (#2739)

Signed-off-by: Jan-Otto Kröpke <mail@jkroepke.de>
2026-10-20 03:29:05 +02:00 · 2026-10-16 02:32:29 +02:00
parent af2a7c3f6c
commit 2f5781ff13
43 changed files with 866 additions and 16 deletions
@@ -0,0 +1,85 @@
+// SPDX-License-Identifier: Apache-2.0
+//
+// Copyright The Prometheus Authors
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+//go:build windows
+
+package lazyproc_test
+
+import (
+	"os"
+	"path/filepath"
+	"testing"
+
+	"github.com/prometheus-community/windows_exporter/internal/headers/cfgmgr32"
+	"github.com/prometheus-community/windows_exporter/internal/headers/dhcpsapi"
+	"github.com/prometheus-community/windows_exporter/internal/headers/gdi32"
+	"github.com/prometheus-community/windows_exporter/internal/headers/hcn"
+	"github.com/prometheus-community/windows_exporter/internal/headers/hcs"
+	"github.com/prometheus-community/windows_exporter/internal/headers/iphlpapi"
+	"github.com/prometheus-community/windows_exporter/internal/headers/kernel32"
+	"github.com/prometheus-community/windows_exporter/internal/headers/ntdll"
+	"github.com/prometheus-community/windows_exporter/internal/headers/psapi"
+	"github.com/prometheus-community/windows_exporter/internal/headers/slc"
+	"github.com/prometheus-community/windows_exporter/internal/headers/sysinfoapi"
+	"github.com/prometheus-community/windows_exporter/internal/headers/winspool"
+	"github.com/prometheus-community/windows_exporter/internal/headers/wtsapi32"
+	"github.com/prometheus-community/windows_exporter/internal/pdh"
+	"github.com/stretchr/testify/require"
+	"golang.org/x/sys/windows"
+)
+
+// TestBindingsLoad checks the export names of every binding package against
+// the DLLs of this host. A DLL that belongs to an optional Windows feature
+// skips its binding when the DLL is not installed.
+func TestBindingsLoad(t *testing.T) {
+	t.Parallel()
+
+	for _, tc := range []struct {
+		name string
+		load func() error
+		// optionalDLL is set for DLLs of optional Windows features.
+		optionalDLL string
+	}{
+		{name: "cfgmgr32", load: cfgmgr32.Load},
+		{name: "dhcpsapi", load: dhcpsapi.Load, optionalDLL: "dhcpsapi.dll"},
+		{name: "gdi32", load: gdi32.Load},
+		{name: "hcn", load: hcn.Load, optionalDLL: "vmcompute.dll"},
+		{name: "hcs", load: hcs.Load, optionalDLL: "computecore.dll"},
+		{name: "iphlpapi", load: iphlpapi.Load},
+		{name: "kernel32", load: kernel32.Load},
+		{name: "ntdll", load: ntdll.Load},
+		{name: "psapi", load: psapi.Load},
+		{name: "slc", load: slc.Load},
+		{name: "sysinfoapi", load: sysinfoapi.Load},
+		{name: "winspool", load: winspool.Load},
+		{name: "wtsapi32", load: wtsapi32.Load},
+		{name: "pdh", load: pdh.Load},
+	} {
+		t.Run(tc.name, func(t *testing.T) {
+			t.Parallel()
+
+			if tc.optionalDLL != "" {
+				systemDirectory, err := windows.GetSystemDirectory()
+				require.NoError(t, err)
+
+				if _, err := os.Stat(filepath.Join(systemDirectory, tc.optionalDLL)); err != nil {
+					t.Skipf("%s is not installed: %v", tc.optionalDLL, err)
+				}
+			}
+
+			require.NoError(t, tc.load())
+		})
+	}
+}