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to reflect the new license. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351636
73 lines
2.3 KiB
C++
73 lines
2.3 KiB
C++
//===-- MachVMRegion.h ------------------------------------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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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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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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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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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,
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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 GetDNBPermissions() const;
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const DNBError &GetError() { return m_err; }
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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.
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// Original value is saved in m_data.protections.
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mach_vm_address_t
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m_protection_addr; // The start address at which protections were changed
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mach_vm_size_t
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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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