1 //===-- MemoryTagManagerAArch64MTE.h ----------------------------*- C++ -*-===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 
9 #ifndef LLDB_SOURCE_PLUGINS_PROCESS_UTILITY_MEMORYTAGMANAGERAARCH64MTE_H
10 #define LLDB_SOURCE_PLUGINS_PROCESS_UTILITY_MEMORYTAGMANAGERAARCH64MTE_H
11 
12 #include "lldb/Target/MemoryTagManager.h"
13 
14 namespace lldb_private {
15 
16 class MemoryTagManagerAArch64MTE : public MemoryTagManager {
17 public:
18   // This enum is supposed to be shared for all of AArch64 but until
19   // there are more tag types than MTE, it will live here.
20   enum MTETagTypes {
21     eMTE_logical = 0,
22     eMTE_allocation = 1,
23   };
24 
25   lldb::addr_t GetGranuleSize() const override;
26   int32_t GetAllocationTagType() const override;
27   size_t GetTagSizeInBytes() const override;
28 
29   lldb::addr_t GetLogicalTag(lldb::addr_t addr) const override;
30   lldb::addr_t RemoveTagBits(lldb::addr_t addr) const override;
31   ptrdiff_t AddressDiff(lldb::addr_t addr1, lldb::addr_t addr2) const override;
32 
33   TagRange ExpandToGranule(TagRange range) const override;
34 
35   llvm::Expected<TagRange> MakeTaggedRange(
36       lldb::addr_t addr, lldb::addr_t end_addr,
37       const lldb_private::MemoryRegionInfos &memory_regions) const override;
38 
39   llvm::Expected<std::vector<TagRange>> MakeTaggedRanges(
40       lldb::addr_t addr, lldb::addr_t end_addr,
41       const lldb_private::MemoryRegionInfos &memory_regions) const override;
42 
43   llvm::Expected<std::vector<lldb::addr_t>>
44   UnpackTagsData(const std::vector<uint8_t> &tags,
45                  size_t granules = 0) const override;
46 
47   llvm::Expected<std::vector<uint8_t>>
48   PackTags(const std::vector<lldb::addr_t> &tags) const override;
49 
50   llvm::Expected<std::vector<lldb::addr_t>>
51   RepeatTagsForRange(const std::vector<lldb::addr_t> &tags,
52                      TagRange range) const override;
53 };
54 
55 } // namespace lldb_private
56 
57 #endif // LLDB_SOURCE_PLUGINS_PROCESS_UTILITY_MEMORYTAGMANAGERAARCH64MTE_H
58