1 //===-- ExpressionVariable.cpp --------------------------------------------===// 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 #include "lldb/Expression/ExpressionVariable.h" 10 #include "lldb/Expression/IRExecutionUnit.h" 11 #include "lldb/Target/Target.h" 12 #include "lldb/Utility/LLDBLog.h" 13 #include "lldb/Utility/Log.h" 14 15 using namespace lldb_private; 16 17 ExpressionVariable::~ExpressionVariable() = default; 18 19 uint8_t *ExpressionVariable::GetValueBytes() { 20 llvm::Optional<uint64_t> byte_size = m_frozen_sp->GetByteSize(); 21 if (byte_size && *byte_size) { 22 if (m_frozen_sp->GetDataExtractor().GetByteSize() < *byte_size) { 23 m_frozen_sp->GetValue().ResizeData(*byte_size); 24 m_frozen_sp->GetValue().GetData(m_frozen_sp->GetDataExtractor()); 25 } 26 return const_cast<uint8_t *>( 27 m_frozen_sp->GetDataExtractor().GetDataStart()); 28 } 29 return nullptr; 30 } 31 32 PersistentExpressionState::~PersistentExpressionState() = default; 33 34 lldb::addr_t PersistentExpressionState::LookupSymbol(ConstString name) { 35 SymbolMap::iterator si = m_symbol_map.find(name.GetCString()); 36 37 if (si != m_symbol_map.end()) 38 return si->second; 39 else 40 return LLDB_INVALID_ADDRESS; 41 } 42 43 void PersistentExpressionState::RegisterExecutionUnit( 44 lldb::IRExecutionUnitSP &execution_unit_sp) { 45 Log *log = GetLog(LLDBLog::Expressions); 46 47 m_execution_units.insert(execution_unit_sp); 48 49 LLDB_LOGF(log, "Registering JITted Functions:\n"); 50 51 for (const IRExecutionUnit::JittedFunction &jitted_function : 52 execution_unit_sp->GetJittedFunctions()) { 53 if (jitted_function.m_external && 54 jitted_function.m_name != execution_unit_sp->GetFunctionName() && 55 jitted_function.m_remote_addr != LLDB_INVALID_ADDRESS) { 56 m_symbol_map[jitted_function.m_name.GetCString()] = 57 jitted_function.m_remote_addr; 58 LLDB_LOGF(log, " Function: %s at 0x%" PRIx64 ".", 59 jitted_function.m_name.GetCString(), 60 jitted_function.m_remote_addr); 61 } 62 } 63 64 LLDB_LOGF(log, "Registering JIIted Symbols:\n"); 65 66 for (const IRExecutionUnit::JittedGlobalVariable &global_var : 67 execution_unit_sp->GetJittedGlobalVariables()) { 68 if (global_var.m_remote_addr != LLDB_INVALID_ADDRESS) { 69 // Demangle the name before inserting it, so that lookups by the ConstStr 70 // of the demangled name will find the mangled one (needed for looking up 71 // metadata pointers.) 72 Mangled mangler(global_var.m_name); 73 mangler.GetDemangledName(); 74 m_symbol_map[global_var.m_name.GetCString()] = global_var.m_remote_addr; 75 LLDB_LOGF(log, " Symbol: %s at 0x%" PRIx64 ".", 76 global_var.m_name.GetCString(), global_var.m_remote_addr); 77 } 78 } 79 } 80