3dc8583c96
Add a more general purpose qMemoryRegionInfo packet which can describe various attributes about a memory region. Currently it will return the start address, size, and permissions (read, write, executable) for the memory region. It may be possible to add additional attributes in the future such as whether the region is designated as stack memory or jitted code a la vmmap. I still haven't implemented the lldb side of the code to use this packet yet so there may be unexpected behavior - but the basic implementation looks about right. I'll hook it up to lldb soon and fix any problems that crop up. llvm-svn: 144175
71 lines
2.3 KiB
C++
71 lines
2.3 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_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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bool GetRegionDescription (char *outbuf, nub_size_t outbufsize);
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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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