1 files changed, 77 insertions, 0 deletions
diff --git a/tools/debugserver/source/MacOSX/MachVMRegion.h b/tools/debugserver/source/MacOSX/MachVMRegion.h
new file mode 100644
index 000000000000..bcac60b83182
--- /dev/null
+++ b/tools/debugserver/source/MacOSX/MachVMRegion.h
@@ -0,0 +1,77 @@
+//===-- MachVMRegion.h ------------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+//  Created by Greg Clayton on 6/26/07.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef __MachVMRegion_h__
+#define __MachVMRegion_h__
+
+#include "DNBDefs.h"
+#include "DNBError.h"
+#include <mach/mach.h>
+
+class MachVMRegion
+{
+public:
+    MachVMRegion(task_t task);
+    ~MachVMRegion();
+
+    void Clear();
+    mach_vm_address_t StartAddress() const { return m_start; }
+    mach_vm_address_t EndAddress() const { return m_start + m_size; }
+    mach_vm_size_t GetByteSize () const { return m_size; }
+    mach_vm_address_t BytesRemaining(mach_vm_address_t addr) const
+    {
+        if (ContainsAddress(addr))
+            return m_size - (addr - m_start);
+        else
+            return 0;
+    }
+    bool ContainsAddress(mach_vm_address_t addr) const
+    {
+        return addr >= StartAddress() && addr < EndAddress();
+    }
+
+    bool SetProtections(mach_vm_address_t addr, mach_vm_size_t size, vm_prot_t prot);
+    bool RestoreProtections();
+    bool GetRegionForAddress(nub_addr_t addr);
+
+    uint32_t
+    GetDNBPermissions () const;
+
+    const DNBError &
+    GetError ()
+    {
+        return m_err;
+    }
+protected:
+#if defined (VM_REGION_SUBMAP_SHORT_INFO_COUNT_64)
+    typedef vm_region_submap_short_info_data_64_t RegionInfo;
+    enum { kRegionInfoSize = VM_REGION_SUBMAP_SHORT_INFO_COUNT_64 };
+#else
+    typedef vm_region_submap_info_data_64_t RegionInfo;
+    enum { kRegionInfoSize = VM_REGION_SUBMAP_INFO_COUNT_64 };
+#endif
+
+    task_t              m_task;
+    mach_vm_address_t   m_addr;
+    DNBError            m_err;
+    mach_vm_address_t   m_start;
+    mach_vm_size_t      m_size;
+    natural_t           m_depth;
+    RegionInfo          m_data;
+    vm_prot_t           m_curr_protection;    // The current, possibly modified protections. Original value is saved in m_data.protections.
+    mach_vm_address_t   m_protection_addr;    // The start address at which protections were changed
+    mach_vm_size_t      m_protection_size;    // The size of memory that had its protections changed
+
+};
+
+#endif    // #ifndef __MachVMRegion_h__