c7bece56fa
Major fixed to allow reading files that are over 4GB. The main problems were that the DataExtractor was using 32 bit offsets as a data cursor, and since we mmap all of our object files we could run into cases where if we had a very large core file that was over 4GB, we were running into the 4GB boundary. So I defined a new "lldb::offset_t" which should be used for all file offsets. After making this change, I enabled warnings for data loss and for enexpected implicit conversions temporarily and found a ton of things that I fixed. Any functions that take an index internally, should use "size_t" for any indexes and also should return "size_t" for any sizes of collections. llvm-svn: 173463
125 lines
3.5 KiB
C++
125 lines
3.5 KiB
C++
//===-- DisassemblerLLVMC.h -------------------------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#ifndef liblldb_DisassemblerLLVMC_h_
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#define liblldb_DisassemblerLLVMC_h_
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#include "llvm-c/Disassembler.h"
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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 "lldb/Host/Mutex.h"
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class InstructionLLVMC;
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class DisassemblerLLVMC : public lldb_private::Disassembler
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{
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public:
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//------------------------------------------------------------------
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// Static Functions
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//------------------------------------------------------------------
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static void
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Initialize();
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static void
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Terminate();
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static const char *
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GetPluginNameStatic();
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static const char *
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GetPluginDescriptionStatic();
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static lldb_private::Disassembler *
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CreateInstance(const lldb_private::ArchSpec &arch);
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DisassemblerLLVMC(const lldb_private::ArchSpec &arch);
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virtual
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~DisassemblerLLVMC();
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size_t
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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,
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size_t num_instructions,
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bool append);
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//------------------------------------------------------------------
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// PluginInterface protocol
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//------------------------------------------------------------------
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virtual const char *
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GetPluginName();
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virtual const char *
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GetShortPluginName();
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virtual uint32_t
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GetPluginVersion();
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protected:
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friend class InstructionLLVMC;
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bool
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IsValid()
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{
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return (m_disasm_context != NULL);
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}
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int OpInfo(uint64_t PC,
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uint64_t Offset,
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uint64_t Size,
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int TagType,
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void *TagBug);
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const char *SymbolLookup (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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static int OpInfoCallback (void *DisInfo,
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uint64_t PC,
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uint64_t Offset,
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uint64_t Size,
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int TagType,
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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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void Lock(InstructionLLVMC *inst,
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const lldb_private::ExecutionContext *exe_ctx)
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{
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m_mutex.Lock();
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m_inst = inst;
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m_exe_ctx = exe_ctx;
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}
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void Unlock()
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{
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m_inst = NULL;
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m_exe_ctx = NULL;
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m_mutex.Unlock();
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}
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const lldb_private::ExecutionContext *m_exe_ctx;
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InstructionLLVMC *m_inst;
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lldb_private::Mutex m_mutex;
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::LLVMDisasmContextRef m_disasm_context;
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::LLVMDisasmContextRef m_alternate_disasm_context;
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};
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#endif // liblldb_DisassemblerLLVM_h_
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