| //===-- 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__ |
