ART: Move runtime-debug flags to own files

To reduce the need for base/logging.h and separate out concerns.

Test: m
Change-Id: Ib373357325c6e622f608ada341594c3bea2fce2e

1 files changed, 74 insertions, 0 deletions

diff --git a/runtime/base/runtime_debug.cc b/runtime/base/runtime_debug.cc
new file mode 100644
index 0000000000..4f8a8ec9c6
--- /dev/null
+++ b/runtime/base/runtime_debug.cc
@@ -0,0 +1,74 @@
+/*
+ * Copyright (C) 2011 The Android Open Source Project
+ *
+ * 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.
+ */
+
+#include "runtime_debug.h"
+
+#include <vector>
+
+#include "globals.h"
+
+namespace art {
+
+// We test here that the runtime-debug-checks are actually a no-op constexpr false in release
+// builds, as we can't check that in gtests (which are always debug).
+
+#ifdef NDEBUG
+namespace {
+DECLARE_RUNTIME_DEBUG_FLAG(kTestForConstexpr);
+static_assert(!kTestForConstexpr, "Issue with DECLARE_RUNTIME_DEBUG_FLAG in NDEBUG.");
+}
+#endif
+
+// Implementation of runtime debug flags. This should be compile-time optimized away in release
+// builds.
+namespace {
+bool gSlowEnabled = false;  // Default for slow flags is "off."
+
+// Use a function with a static to ensure our vector storage doesn't have initialization order
+// issues.
+std::vector<bool*>& GetFlagPtrs() {
+  static std::vector<bool*> g_flag_ptrs;
+  return g_flag_ptrs;
+}
+
+bool RegisterRuntimeDebugFlagImpl(bool* flag_ptr) {
+  GetFlagPtrs().push_back(flag_ptr);
+  return gSlowEnabled;
+}
+
+void SetRuntimeDebugFlagsEnabledImpl(bool enabled) {
+  gSlowEnabled = enabled;
+  for (bool* flag_ptr : GetFlagPtrs()) {
+    *flag_ptr = enabled;
+  }
+}
+
+}  // namespace
+
+bool RegisterRuntimeDebugFlag(bool* flag_ptr) {
+  if (kIsDebugBuild) {
+    return RegisterRuntimeDebugFlagImpl(flag_ptr);
+  }
+  return false;
+}
+
+void SetRuntimeDebugFlagsEnabled(bool enabled) {
+  if (kIsDebugBuild) {
+    SetRuntimeDebugFlagsEnabledImpl(enabled);
+  }
+}
+
+}  // namespace art