Rehaul of firmware TPM tests

tests/tpm_lite/tlcl_tests.c

+/* Copyright (c) 2010 The Chromium OS Authors. All rights reserved.
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+/* Shared code for tests.
+ */
+
+#include "tlcl.h"
+#include "tlcl_tests.h"
+
+const char* resilient_startup = NULL;
+
+uint32_t TlclStartupIfNeeded(void) {
+  static char* null_getenv = "some string";   /* just a unique address */
+  uint32_t result = TlclStartup();
+  if (resilient_startup == NULL) {
+    resilient_startup = getenv("TLCL_RESILIENT_STARTUP");
+    if (resilient_startup == NULL) {
+      resilient_startup = null_getenv;
+    }
+  }
+  if (resilient_startup == null_getenv) {
+    return result;
+  }
+  return result == TPM_E_INVALID_POSTINIT ? TPM_SUCCESS : result;
+}