Add context manager (which manages code and data block of each script.)
diff --git a/lib/bcc/ContextManager.h b/lib/bcc/ContextManager.h
new file mode 100644
index 0000000..b6d1a4c
--- /dev/null
+++ b/lib/bcc/ContextManager.h
@@ -0,0 +1,44 @@
+/*
+ * copyright 2010, 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.
+ */
+
+#ifndef BCC_CONTEXTMANAGER_H
+#define BCC_CONTEXTMANAGER_H
+
+#include <stddef.h>
+
+#include <unistd.h>
+
+
+#define BCC_CONTEXT_FIXED_ADDR (reinterpret_cast<char *>(0x7e000000))
+#define BCC_CONTEXT_SLOT_COUNT 8
+
+#define BCC_CONTEXT_CODE_SIZE (128 * 1024)
+#define BCC_CONTEXT_DATA_SIZE (128 * 1024)
+#define BCC_CONTEXT_SIZE (BCC_CONTEXT_CODE_SIZE + BCC_CONTEXT_DATA_SIZE)
+
+
+namespace bcc {
+
+ extern char *allocateContext();
+
+ extern char *allocateContext(char *addr, int imageFd, off_t imageOffset);
+
+ extern void deallocateContext(char *addr);
+
+} // namespace bcc
+
+
+#endif // BCC_CONTEXTMANAGER_H