xref: /freebsd-src/contrib/llvm-project/lldb/source/Expression/ExpressionVariable.cpp (revision 06c3fb2749bda94cb5201f81ffdb8fa6c3161b2e)
15ffd83dbSDimitry Andric //===-- ExpressionVariable.cpp --------------------------------------------===//
20b57cec5SDimitry Andric //
30b57cec5SDimitry Andric // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
40b57cec5SDimitry Andric // See https://llvm.org/LICENSE.txt for license information.
50b57cec5SDimitry Andric // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
60b57cec5SDimitry Andric //
70b57cec5SDimitry Andric //===----------------------------------------------------------------------===//
80b57cec5SDimitry Andric 
90b57cec5SDimitry Andric #include "lldb/Expression/ExpressionVariable.h"
100b57cec5SDimitry Andric #include "lldb/Expression/IRExecutionUnit.h"
110b57cec5SDimitry Andric #include "lldb/Target/Target.h"
1281ad6265SDimitry Andric #include "lldb/Utility/LLDBLog.h"
130b57cec5SDimitry Andric #include "lldb/Utility/Log.h"
14bdd1243dSDimitry Andric #include <optional>
150b57cec5SDimitry Andric 
160b57cec5SDimitry Andric using namespace lldb_private;
170b57cec5SDimitry Andric 
18*06c3fb27SDimitry Andric char ExpressionVariable::ID;
19*06c3fb27SDimitry Andric 
ExpressionVariable()20*06c3fb27SDimitry Andric ExpressionVariable::ExpressionVariable() : m_flags(0) {}
210b57cec5SDimitry Andric 
GetValueBytes()220b57cec5SDimitry Andric uint8_t *ExpressionVariable::GetValueBytes() {
23bdd1243dSDimitry Andric   std::optional<uint64_t> byte_size = m_frozen_sp->GetByteSize();
24e8d8bef9SDimitry Andric   if (byte_size && *byte_size) {
25e8d8bef9SDimitry Andric     if (m_frozen_sp->GetDataExtractor().GetByteSize() < *byte_size) {
26e8d8bef9SDimitry Andric       m_frozen_sp->GetValue().ResizeData(*byte_size);
270b57cec5SDimitry Andric       m_frozen_sp->GetValue().GetData(m_frozen_sp->GetDataExtractor());
280b57cec5SDimitry Andric     }
290b57cec5SDimitry Andric     return const_cast<uint8_t *>(
300b57cec5SDimitry Andric         m_frozen_sp->GetDataExtractor().GetDataStart());
310b57cec5SDimitry Andric   }
320b57cec5SDimitry Andric   return nullptr;
330b57cec5SDimitry Andric }
340b57cec5SDimitry Andric 
35*06c3fb27SDimitry Andric char PersistentExpressionState::ID;
36*06c3fb27SDimitry Andric 
37*06c3fb27SDimitry Andric PersistentExpressionState::PersistentExpressionState() = default;
38*06c3fb27SDimitry Andric 
39fe6060f1SDimitry Andric PersistentExpressionState::~PersistentExpressionState() = default;
400b57cec5SDimitry Andric 
LookupSymbol(ConstString name)410b57cec5SDimitry Andric lldb::addr_t PersistentExpressionState::LookupSymbol(ConstString name) {
420b57cec5SDimitry Andric   SymbolMap::iterator si = m_symbol_map.find(name.GetCString());
430b57cec5SDimitry Andric 
440b57cec5SDimitry Andric   if (si != m_symbol_map.end())
450b57cec5SDimitry Andric     return si->second;
460b57cec5SDimitry Andric   else
470b57cec5SDimitry Andric     return LLDB_INVALID_ADDRESS;
480b57cec5SDimitry Andric }
490b57cec5SDimitry Andric 
RegisterExecutionUnit(lldb::IRExecutionUnitSP & execution_unit_sp)500b57cec5SDimitry Andric void PersistentExpressionState::RegisterExecutionUnit(
510b57cec5SDimitry Andric     lldb::IRExecutionUnitSP &execution_unit_sp) {
5281ad6265SDimitry Andric   Log *log = GetLog(LLDBLog::Expressions);
530b57cec5SDimitry Andric 
540b57cec5SDimitry Andric   m_execution_units.insert(execution_unit_sp);
550b57cec5SDimitry Andric 
569dba64beSDimitry Andric   LLDB_LOGF(log, "Registering JITted Functions:\n");
570b57cec5SDimitry Andric 
580b57cec5SDimitry Andric   for (const IRExecutionUnit::JittedFunction &jitted_function :
590b57cec5SDimitry Andric        execution_unit_sp->GetJittedFunctions()) {
600b57cec5SDimitry Andric     if (jitted_function.m_external &&
610b57cec5SDimitry Andric         jitted_function.m_name != execution_unit_sp->GetFunctionName() &&
620b57cec5SDimitry Andric         jitted_function.m_remote_addr != LLDB_INVALID_ADDRESS) {
630b57cec5SDimitry Andric       m_symbol_map[jitted_function.m_name.GetCString()] =
640b57cec5SDimitry Andric           jitted_function.m_remote_addr;
659dba64beSDimitry Andric       LLDB_LOGF(log, "  Function: %s at 0x%" PRIx64 ".",
660b57cec5SDimitry Andric                 jitted_function.m_name.GetCString(),
670b57cec5SDimitry Andric                 jitted_function.m_remote_addr);
680b57cec5SDimitry Andric     }
690b57cec5SDimitry Andric   }
700b57cec5SDimitry Andric 
719dba64beSDimitry Andric   LLDB_LOGF(log, "Registering JIIted Symbols:\n");
720b57cec5SDimitry Andric 
730b57cec5SDimitry Andric   for (const IRExecutionUnit::JittedGlobalVariable &global_var :
740b57cec5SDimitry Andric        execution_unit_sp->GetJittedGlobalVariables()) {
750b57cec5SDimitry Andric     if (global_var.m_remote_addr != LLDB_INVALID_ADDRESS) {
760b57cec5SDimitry Andric       // Demangle the name before inserting it, so that lookups by the ConstStr
770b57cec5SDimitry Andric       // of the demangled name will find the mangled one (needed for looking up
780b57cec5SDimitry Andric       // metadata pointers.)
790b57cec5SDimitry Andric       Mangled mangler(global_var.m_name);
805ffd83dbSDimitry Andric       mangler.GetDemangledName();
810b57cec5SDimitry Andric       m_symbol_map[global_var.m_name.GetCString()] = global_var.m_remote_addr;
829dba64beSDimitry Andric       LLDB_LOGF(log, "  Symbol: %s at 0x%" PRIx64 ".",
830b57cec5SDimitry Andric                 global_var.m_name.GetCString(), global_var.m_remote_addr);
840b57cec5SDimitry Andric     }
850b57cec5SDimitry Andric   }
860b57cec5SDimitry Andric }
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