1 files changed, 47 insertions, 0 deletions
diff --git a/plugincheck/check.go b/plugincheck/check.go
new file mode 100644
index 0000000..8d3b683
--- /dev/null
+++ b/plugincheck/check.go
@@ -0,0 +1,47 @@
+package plugincheck
+
+import (
+	"debug/buildinfo"
+	"errors"
+	"fmt"
+	"runtime/debug"
+)
+
+// CheckPluginCompatibility verifies that the plugin .so file was built
+// with the same Go version and dependency versions as the host binary.
+func CheckPluginCompatibility(pluginPath string) error {
+	pluginInfo, err := buildinfo.ReadFile(pluginPath)
+	if err != nil {
+		return fmt.Errorf("failed to read plugin build info: %w", err)
+	}
+
+	mainInfo, ok := debug.ReadBuildInfo()
+	if !ok {
+		return errors.New("failed to read main binary build info")
+	}
+
+	if pluginInfo.GoVersion != mainInfo.GoVersion {
+		return fmt.Errorf("Go version mismatch: plugin=%s, host=%s",
+			pluginInfo.GoVersion, mainInfo.GoVersion)
+	}
+
+	// Create a map of main binary dependencies for quick lookup
+	hostDeps := make(map[string]string)
+	for _, dep := range mainInfo.Deps {
+		hostDeps[dep.Path] = dep.Version
+	}
+
+	// Compare plugin dependencies
+	for _, dep := range pluginInfo.Deps {
+		hostVer, ok := hostDeps[dep.Path]
+		if !ok {
+			return fmt.Errorf("dependency %s not found in host binary", dep.Path)
+		}
+		if dep.Version != hostVer {
+			return fmt.Errorf("dependency version mismatch for %s: plugin=%s, host=%s",
+				dep.Path, dep.Version, hostVer)
+		}
+	}
+
+	return nil
+}