fc5dd29ef7
We will return a valid range when possible and omit the "permissions" key when the memory is not readable, writeable or executeable. This will help us know the difference between an error back from this packet and unsupported, from just "this address isn't in a valid region". llvm-svn: 146394
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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