1 files changed, 59 insertions, 0 deletions
diff --git a/gprofng/src/HeapMap.h b/gprofng/src/HeapMap.h
new file mode 100644
index 0000000..c46129d
--- /dev/null
+++ b/gprofng/src/HeapMap.h
@@ -0,0 +1,59 @@
+/* Copyright (C) 2021 Free Software Foundation, Inc.
+   Contributed by Oracle.
+
+   This file is part of GNU Binutils.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, 51 Franklin Street - Fifth Floor, Boston,
+   MA 02110-1301, USA.  */
+
+#ifndef _HEAPMAP_H
+#define _HEAPMAP_H
+
+#include "dbe_types.h"
+#include "vec.h"
+
+struct HeapObj;
+struct HeapChunk;
+
+typedef struct UnmapChunk
+{
+  long val;
+  int64_t size;
+  UnmapChunk *next;
+} UnmapChunk;
+
+class HeapMap
+{
+public:
+  HeapMap ();
+  ~HeapMap ();
+  void allocate (uint64_t addr, long val);
+  long deallocate (uint64_t addr);
+  UnmapChunk *mmap (uint64_t addr, int64_t size, long val);
+  UnmapChunk *munmap (uint64_t addr, int64_t size);
+
+private:
+  void allocateChunk ();
+  HeapObj *getHeapObj ();
+  void releaseHeapObj (HeapObj*);
+  UnmapChunk *process (HeapObj *obj, uint64_t addr, int64_t size);
+
+  HeapChunk *chunks;
+  HeapObj *empty;
+  HeapObj **chain;
+  HeapObj *mmaps;
+};
+
+#endif /* _HEAPMAP_H */