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