| 1 | //===-- AddressableBits.h ---------------------------------------*- C++ -*-===// |
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| 2 | // |
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| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 4 | // See https://llvm.org/LICENSE.txt for license information. |
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| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 6 | // |
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| 7 | //===----------------------------------------------------------------------===// |
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| 8 | |
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| 9 | #ifndef LLDB_UTILITY_ADDRESSABLEBITS_H |
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| 10 | #define LLDB_UTILITY_ADDRESSABLEBITS_H |
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| 11 | |
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| 12 | #include "lldb/lldb-forward.h" |
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| 13 | #include "lldb/lldb-public.h" |
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| 14 | |
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| 15 | #include <cstdint> |
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| 16 | |
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| 17 | namespace lldb_private { |
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| 18 | |
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| 19 | /// \class AddressableBits AddressableBits.h "lldb/Core/AddressableBits.h" |
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| 20 | /// A class which holds the metadata from a remote stub/corefile note |
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| 21 | /// about how many bits are used for addressing on this target. |
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| 22 | /// |
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| 23 | class AddressableBits { |
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| 24 | public: |
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| 25 | AddressableBits() : m_low_memory_addr_bits(0), m_high_memory_addr_bits(0) {} |
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| 26 | |
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| 27 | /// When a single value is available for the number of bits. |
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| 28 | void SetAddressableBits(uint32_t addressing_bits); |
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| 29 | |
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| 30 | /// When we have separate values for low memory addresses and high memory |
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| 31 | /// addresses. |
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| 32 | void SetAddressableBits(uint32_t lowmem_addressing_bits, |
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| 33 | uint32_t highmem_addressing_bits); |
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| 34 | |
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| 35 | void SetLowmemAddressableBits(uint32_t lowmem_addressing_bits); |
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| 36 | |
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| 37 | uint32_t GetLowmemAddressableBits() const; |
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| 38 | |
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| 39 | void SetHighmemAddressableBits(uint32_t highmem_addressing_bits); |
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| 40 | |
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| 41 | uint32_t GetHighmemAddressableBits() const; |
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| 42 | |
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| 43 | static lldb::addr_t AddressableBitToMask(uint32_t addressable_bits); |
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| 44 | |
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| 45 | private: |
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| 46 | uint32_t m_low_memory_addr_bits; |
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| 47 | uint32_t m_high_memory_addr_bits; |
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| 48 | }; |
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| 49 | |
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| 50 | } // namespace lldb_private |
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| 51 | |
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| 52 | #endif // LLDB_UTILITY_ADDRESSABLEBITS_H |
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| 53 | |
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