106c3fb27SDimitry Andric //===-- mem_map.h -----------------------------------------------*- C++ -*-===// 206c3fb27SDimitry Andric // 306c3fb27SDimitry Andric // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 406c3fb27SDimitry Andric // See https://llvm.org/LICENSE.txt for license information. 506c3fb27SDimitry Andric // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 606c3fb27SDimitry Andric // 706c3fb27SDimitry Andric //===----------------------------------------------------------------------===// 806c3fb27SDimitry Andric 906c3fb27SDimitry Andric #ifndef SCUDO_MEM_MAP_H_ 1006c3fb27SDimitry Andric #define SCUDO_MEM_MAP_H_ 1106c3fb27SDimitry Andric 1206c3fb27SDimitry Andric #include "mem_map_base.h" 1306c3fb27SDimitry Andric 1406c3fb27SDimitry Andric #include "common.h" 1506c3fb27SDimitry Andric #include "internal_defs.h" 1606c3fb27SDimitry Andric 1706c3fb27SDimitry Andric // TODO: This is only used for `MapPlatformData`. Remove these includes when we 1806c3fb27SDimitry Andric // have all three platform specific `MemMap` and `ReservedMemory` 1906c3fb27SDimitry Andric // implementations. 2006c3fb27SDimitry Andric #include "fuchsia.h" 2106c3fb27SDimitry Andric #include "linux.h" 2206c3fb27SDimitry Andric #include "trusty.h" 2306c3fb27SDimitry Andric 2406c3fb27SDimitry Andric #include "mem_map_fuchsia.h" 25*5f757f3fSDimitry Andric #include "mem_map_linux.h" 2606c3fb27SDimitry Andric 2706c3fb27SDimitry Andric namespace scudo { 2806c3fb27SDimitry Andric 2906c3fb27SDimitry Andric // This will be deprecated when every allocator has been supported by each 3006c3fb27SDimitry Andric // platform's `MemMap` implementation. 3106c3fb27SDimitry Andric class MemMapDefault final : public MemMapBase<MemMapDefault> { 3206c3fb27SDimitry Andric public: 3306c3fb27SDimitry Andric constexpr MemMapDefault() = default; MemMapDefault(uptr Base,uptr Capacity)3406c3fb27SDimitry Andric MemMapDefault(uptr Base, uptr Capacity) : Base(Base), Capacity(Capacity) {} 3506c3fb27SDimitry Andric 3606c3fb27SDimitry Andric // Impls for base functions. 3706c3fb27SDimitry Andric bool mapImpl(uptr Addr, uptr Size, const char *Name, uptr Flags); 3806c3fb27SDimitry Andric void unmapImpl(uptr Addr, uptr Size); 3906c3fb27SDimitry Andric bool remapImpl(uptr Addr, uptr Size, const char *Name, uptr Flags); 4006c3fb27SDimitry Andric void setMemoryPermissionImpl(uptr Addr, uptr Size, uptr Flags); releasePagesToOSImpl(uptr From,uptr Size)4106c3fb27SDimitry Andric void releasePagesToOSImpl(uptr From, uptr Size) { 4206c3fb27SDimitry Andric return releaseAndZeroPagesToOSImpl(From, Size); 4306c3fb27SDimitry Andric } 4406c3fb27SDimitry Andric void releaseAndZeroPagesToOSImpl(uptr From, uptr Size); getBaseImpl()4506c3fb27SDimitry Andric uptr getBaseImpl() { return Base; } getCapacityImpl()4606c3fb27SDimitry Andric uptr getCapacityImpl() { return Capacity; } 4706c3fb27SDimitry Andric setMapPlatformData(MapPlatformData & NewData)4806c3fb27SDimitry Andric void setMapPlatformData(MapPlatformData &NewData) { Data = NewData; } 4906c3fb27SDimitry Andric 5006c3fb27SDimitry Andric private: 5106c3fb27SDimitry Andric uptr Base = 0; 5206c3fb27SDimitry Andric uptr Capacity = 0; 5306c3fb27SDimitry Andric uptr MappedBase = 0; 5406c3fb27SDimitry Andric MapPlatformData Data = {}; 5506c3fb27SDimitry Andric }; 5606c3fb27SDimitry Andric 5706c3fb27SDimitry Andric // This will be deprecated when every allocator has been supported by each 5806c3fb27SDimitry Andric // platform's `MemMap` implementation. 5906c3fb27SDimitry Andric class ReservedMemoryDefault final 6006c3fb27SDimitry Andric : public ReservedMemory<ReservedMemoryDefault, MemMapDefault> { 6106c3fb27SDimitry Andric public: 6206c3fb27SDimitry Andric constexpr ReservedMemoryDefault() = default; 6306c3fb27SDimitry Andric 6406c3fb27SDimitry Andric bool createImpl(uptr Addr, uptr Size, const char *Name, uptr Flags); 6506c3fb27SDimitry Andric void releaseImpl(); 6606c3fb27SDimitry Andric MemMapT dispatchImpl(uptr Addr, uptr Size); getBaseImpl()6706c3fb27SDimitry Andric uptr getBaseImpl() { return Base; } getCapacityImpl()6806c3fb27SDimitry Andric uptr getCapacityImpl() { return Capacity; } 6906c3fb27SDimitry Andric 7006c3fb27SDimitry Andric private: 7106c3fb27SDimitry Andric uptr Base = 0; 7206c3fb27SDimitry Andric uptr Capacity = 0; 7306c3fb27SDimitry Andric MapPlatformData Data = {}; 7406c3fb27SDimitry Andric }; 7506c3fb27SDimitry Andric 7606c3fb27SDimitry Andric #if SCUDO_LINUX 77*5f757f3fSDimitry Andric using ReservedMemoryT = ReservedMemoryLinux; 7806c3fb27SDimitry Andric using MemMapT = ReservedMemoryT::MemMapT; 7906c3fb27SDimitry Andric #elif SCUDO_FUCHSIA 80*5f757f3fSDimitry Andric using ReservedMemoryT = ReservedMemoryFuchsia; 8106c3fb27SDimitry Andric using MemMapT = ReservedMemoryT::MemMapT; 8206c3fb27SDimitry Andric #elif SCUDO_TRUSTY 8306c3fb27SDimitry Andric using ReservedMemoryT = ReservedMemoryDefault; 8406c3fb27SDimitry Andric using MemMapT = ReservedMemoryT::MemMapT; 8506c3fb27SDimitry Andric #else 8606c3fb27SDimitry Andric #error \ 8706c3fb27SDimitry Andric "Unsupported platform, please implement the ReservedMemory for your platform!" 8806c3fb27SDimitry Andric #endif 8906c3fb27SDimitry Andric 9006c3fb27SDimitry Andric } // namespace scudo 9106c3fb27SDimitry Andric 9206c3fb27SDimitry Andric #endif // SCUDO_MEM_MAP_H_ 93