Remove some hardcoded cases of kCardShift
Also added cpp-define-generator to do this. This makes it easier to
change the GC card size.
Bug: 36457259
Test: test-art-host
Change-Id: I03b59f2bbb9b483280bea34575f5373ec6b15b98
diff --git a/tools/cpp-define-generator/constant_card_table.def b/tools/cpp-define-generator/constant_card_table.def
new file mode 100644
index 0000000..ae3e8f3
--- /dev/null
+++ b/tools/cpp-define-generator/constant_card_table.def
@@ -0,0 +1,25 @@
+/*
+ * Copyright (C) 2017 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.
+ */
+
+// Export heap values.
+
+#if defined(DEFINE_INCLUDE_DEPENDENCIES)
+#include "gc/accounting/card_table.h"
+#endif
+
+// Size of references to the heap on the stack.
+DEFINE_EXPR(CARD_TABLE_CARD_SHIFT, size_t, art::gc::accounting::CardTable::kCardShift)
+