91 lines
3.3 KiB
C++
91 lines
3.3 KiB
C++
//===-- DisassemblerLLVMC.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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#ifndef LLDB_SOURCE_PLUGINS_DISASSEMBLER_LLVMC_DISASSEMBLERLLVMC_H
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#define LLDB_SOURCE_PLUGINS_DISASSEMBLER_LLVMC_DISASSEMBLERLLVMC_H
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#include <memory>
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#include <mutex>
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#include <string>
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#include "lldb/Core/Address.h"
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#include "lldb/Core/Disassembler.h"
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#include "lldb/Core/PluginManager.h"
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#include "llvm/ADT/Optional.h"
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class InstructionLLVMC;
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class DisassemblerLLVMC : public lldb_private::Disassembler {
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public:
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DisassemblerLLVMC(const lldb_private::ArchSpec &arch,
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const char *flavor /* = NULL */);
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~DisassemblerLLVMC() override;
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// Static Functions
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static void Initialize();
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static void Terminate();
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static llvm::StringRef GetPluginNameStatic() { return "llvm-mc"; }
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static lldb_private::Disassembler *
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CreateInstance(const lldb_private::ArchSpec &arch, const char *flavor);
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size_t DecodeInstructions(const lldb_private::Address &base_addr,
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const lldb_private::DataExtractor &data,
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lldb::offset_t data_offset, size_t num_instructions,
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bool append, bool data_from_file) override;
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// PluginInterface protocol
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llvm::StringRef GetPluginName() override { return GetPluginNameStatic(); }
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protected:
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friend class InstructionLLVMC;
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bool FlavorValidForArchSpec(const lldb_private::ArchSpec &arch,
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const char *flavor) override;
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bool IsValid() const;
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int OpInfo(uint64_t PC, uint64_t Offset, uint64_t Size, int TagType,
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void *TagBug);
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const char *SymbolLookup(uint64_t ReferenceValue, uint64_t *ReferenceType,
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uint64_t ReferencePC, const char **ReferenceName);
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static int OpInfoCallback(void *DisInfo, uint64_t PC, uint64_t Offset,
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uint64_t Size, int TagType, void *TagBug);
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static const char *SymbolLookupCallback(void *DisInfo,
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uint64_t ReferenceValue,
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uint64_t *ReferenceType,
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uint64_t ReferencePC,
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const char **ReferenceName);
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const lldb_private::ExecutionContext *m_exe_ctx;
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InstructionLLVMC *m_inst;
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std::mutex m_mutex;
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bool m_data_from_file;
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// Save the AArch64 ADRP instruction word and address it was at,
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// in case the next instruction is an ADD to the same register;
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// this is a pc-relative address calculation and we need both
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// parts to calculate the symbolication.
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lldb::addr_t m_adrp_address;
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llvm::Optional<uint32_t> m_adrp_insn;
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// Since we need to make two actual MC Disassemblers for ARM (ARM & THUMB),
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// and there's a bit of goo to set up and own in the MC disassembler world,
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// this class was added to manage the actual disassemblers.
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class MCDisasmInstance;
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std::unique_ptr<MCDisasmInstance> m_disasm_up;
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std::unique_ptr<MCDisasmInstance> m_alternate_disasm_up;
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};
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#endif // LLDB_SOURCE_PLUGINS_DISASSEMBLER_LLVMC_DISASSEMBLERLLVMC_H
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