l0_feature: Use L0 Loader teardown callback

Related-To: LOCI-4174

- Call zelSetDriverTeardown during L0 Driver teardown to prevent users
from calling into destroyed functions and encountering crashes
during teardown.

Signed-off-by: Neil R Spruit <neil.r.spruit@intel.com>

level_zero/core/source/global_teardown.cpp

@@ -0,0 +1,38 @@
+/*
+ * Copyright (C) 2023 Intel Corporation
+ *
+ * SPDX-License-Identifier: MIT
+ *
+ */
+
+#include "level_zero/core/source/global_teardown.h"
+
+#include "shared/source/os_interface/os_library.h"
+
+#include "level_zero/core/source/driver/driver_handle_imp.h"
+#include "level_zero/sysman/source/sysman_driver_handle_imp.h"
+
+namespace L0 {
+
+ze_result_t loaderDriverTeardown(std::string loaderLibraryName) {
+    std::unique_ptr<NEO::OsLibrary> loaderLibrary = std::unique_ptr<NEO::OsLibrary>{NEO::OsLibrary::load(loaderLibraryName.c_str())};
+    if (loaderLibrary) {
+        zelSetDriverTeardown_fn setDriverTeardown = reinterpret_cast<zelSetDriverTeardown_fn>(loaderLibrary->getProcAddress("zelSetDriverTeardown"));
+        if (setDriverTeardown) {
+            return setDriverTeardown();
+        }
+    }
+    return ZE_RESULT_ERROR_DEPENDENCY_UNAVAILABLE;
+}
+
+void globalDriverTeardown() {
+    if (GlobalDriver != nullptr) {
+        delete GlobalDriver;
+        GlobalDriver = nullptr;
+    }
+    if (Sysman::GlobalSysmanDriver != nullptr) {
+        delete Sysman::GlobalSysmanDriver;
+        Sysman::GlobalSysmanDriver = nullptr;
+    }
+}
+} // namespace L0