forked from OSchip/llvm-project
1956 lines
68 KiB
C++
1956 lines
68 KiB
C++
//===-- ClangExpressionDeclMap.cpp -----------------------------*- 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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#include "lldb/Expression/ClangExpressionDeclMap.h"
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// C Includes
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// C++ Includes
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// Other libraries and framework includes
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// Project includes
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#include "clang/AST/ASTContext.h"
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#include "clang/AST/DeclarationName.h"
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#include "clang/AST/Decl.h"
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#include "lldb/lldb-private.h"
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#include "lldb/Core/Address.h"
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#include "lldb/Core/Error.h"
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#include "lldb/Core/Log.h"
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#include "lldb/Core/Module.h"
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#include "lldb/Core/RegisterValue.h"
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#include "lldb/Core/ValueObjectConstResult.h"
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#include "lldb/Core/ValueObjectVariable.h"
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#include "lldb/Expression/ASTDumper.h"
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#include "lldb/Expression/ClangASTSource.h"
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#include "lldb/Expression/ClangPersistentVariables.h"
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#include "lldb/Expression/Materializer.h"
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#include "lldb/Host/Endian.h"
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#include "lldb/Symbol/ClangASTContext.h"
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#include "lldb/Symbol/ClangNamespaceDecl.h"
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#include "lldb/Symbol/CompileUnit.h"
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#include "lldb/Symbol/Function.h"
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#include "lldb/Symbol/ObjectFile.h"
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#include "lldb/Symbol/SymbolContext.h"
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#include "lldb/Symbol/SymbolVendor.h"
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#include "lldb/Symbol/Type.h"
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#include "lldb/Symbol/TypeList.h"
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#include "lldb/Symbol/Variable.h"
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#include "lldb/Symbol/VariableList.h"
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#include "lldb/Target/ExecutionContext.h"
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#include "lldb/Target/ObjCLanguageRuntime.h"
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#include "lldb/Target/Process.h"
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#include "lldb/Target/RegisterContext.h"
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#include "lldb/Target/StackFrame.h"
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#include "lldb/Target/Target.h"
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#include "lldb/Target/Thread.h"
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using namespace lldb;
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using namespace lldb_private;
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using namespace clang;
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ClangExpressionDeclMap::ClangExpressionDeclMap (bool keep_result_in_memory, ExecutionContext &exe_ctx) :
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ClangASTSource (exe_ctx.GetTargetSP()),
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m_found_entities (),
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m_struct_members (),
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m_keep_result_in_memory (keep_result_in_memory),
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m_parser_vars (),
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m_struct_vars ()
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{
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EnableStructVars();
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}
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ClangExpressionDeclMap::~ClangExpressionDeclMap()
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{
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// Note: The model is now that the parser's AST context and all associated
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// data does not vanish until the expression has been executed. This means
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// that valuable lookup data (like namespaces) doesn't vanish, but
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DidParse();
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DisableStructVars();
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}
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bool
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ClangExpressionDeclMap::WillParse(ExecutionContext &exe_ctx,
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Materializer *materializer)
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{
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ClangASTMetrics::ClearLocalCounters();
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EnableParserVars();
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m_parser_vars->m_exe_ctx = exe_ctx;
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Target *target = exe_ctx.GetTargetPtr();
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if (exe_ctx.GetFramePtr())
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m_parser_vars->m_sym_ctx = exe_ctx.GetFramePtr()->GetSymbolContext(lldb::eSymbolContextEverything);
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else if (exe_ctx.GetThreadPtr() && exe_ctx.GetThreadPtr()->GetStackFrameAtIndex(0))
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m_parser_vars->m_sym_ctx = exe_ctx.GetThreadPtr()->GetStackFrameAtIndex(0)->GetSymbolContext(lldb::eSymbolContextEverything);
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else if (exe_ctx.GetProcessPtr())
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{
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m_parser_vars->m_sym_ctx.Clear(true);
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m_parser_vars->m_sym_ctx.target_sp = exe_ctx.GetTargetSP();
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}
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else if (target)
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{
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m_parser_vars->m_sym_ctx.Clear(true);
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m_parser_vars->m_sym_ctx.target_sp = exe_ctx.GetTargetSP();
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}
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if (target)
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{
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m_parser_vars->m_persistent_vars = &target->GetPersistentVariables();
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if (!target->GetScratchClangASTContext())
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return false;
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}
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m_parser_vars->m_target_info = GetTargetInfo();
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m_parser_vars->m_materializer = materializer;
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return true;
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}
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void
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ClangExpressionDeclMap::DidParse()
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{
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Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
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if (log)
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ClangASTMetrics::DumpCounters(log);
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if (m_parser_vars.get())
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{
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for (size_t entity_index = 0, num_entities = m_found_entities.GetSize();
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entity_index < num_entities;
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++entity_index)
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{
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ClangExpressionVariableSP var_sp(m_found_entities.GetVariableAtIndex(entity_index));
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if (var_sp)
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var_sp->DisableParserVars(GetParserID());
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}
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for (size_t pvar_index = 0, num_pvars = m_parser_vars->m_persistent_vars->GetSize();
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pvar_index < num_pvars;
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++pvar_index)
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{
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ClangExpressionVariableSP pvar_sp(m_parser_vars->m_persistent_vars->GetVariableAtIndex(pvar_index));
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if (pvar_sp)
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pvar_sp->DisableParserVars(GetParserID());
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}
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DisableParserVars();
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}
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}
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// Interface for IRForTarget
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ClangExpressionDeclMap::TargetInfo
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ClangExpressionDeclMap::GetTargetInfo()
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{
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assert (m_parser_vars.get());
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TargetInfo ret;
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ExecutionContext &exe_ctx = m_parser_vars->m_exe_ctx;
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Process *process = exe_ctx.GetProcessPtr();
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if (process)
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{
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ret.byte_order = process->GetByteOrder();
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ret.address_byte_size = process->GetAddressByteSize();
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}
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else
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{
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Target *target = exe_ctx.GetTargetPtr();
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if (target)
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{
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ret.byte_order = target->GetArchitecture().GetByteOrder();
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ret.address_byte_size = target->GetArchitecture().GetAddressByteSize();
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}
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}
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return ret;
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}
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bool
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ClangExpressionDeclMap::AddPersistentVariable
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(
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const NamedDecl *decl,
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const ConstString &name,
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TypeFromParser parser_type,
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bool is_result,
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bool is_lvalue
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)
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{
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assert (m_parser_vars.get());
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if (m_parser_vars->m_materializer && is_result)
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{
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Error err;
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ExecutionContext &exe_ctx = m_parser_vars->m_exe_ctx;
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Target *target = exe_ctx.GetTargetPtr();
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if (target == NULL)
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return false;
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ASTContext *context(target->GetScratchClangASTContext()->getASTContext());
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TypeFromUser user_type(m_ast_importer->DeportType(context,
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parser_type.GetASTContext(),
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parser_type.GetOpaqueQualType()),
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context);
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uint32_t offset = m_parser_vars->m_materializer->AddResultVariable(user_type, is_lvalue, m_keep_result_in_memory, err);
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ClangExpressionVariableSP var_sp = m_found_entities.CreateVariable(exe_ctx.GetBestExecutionContextScope(),
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name,
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user_type,
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m_parser_vars->m_target_info.byte_order,
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m_parser_vars->m_target_info.address_byte_size);
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if (!var_sp)
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return false;
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var_sp->EnableParserVars(GetParserID());
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ClangExpressionVariable::ParserVars *parser_vars = var_sp->GetParserVars(GetParserID());
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parser_vars->m_named_decl = decl;
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parser_vars->m_parser_type = parser_type;
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var_sp->EnableJITVars(GetParserID());
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ClangExpressionVariable::JITVars *jit_vars = var_sp->GetJITVars(GetParserID());
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jit_vars->m_offset = offset;
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return true;
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}
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Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
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ExecutionContext &exe_ctx = m_parser_vars->m_exe_ctx;
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Target *target = exe_ctx.GetTargetPtr();
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if (target == NULL)
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return false;
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ASTContext *context(target->GetScratchClangASTContext()->getASTContext());
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TypeFromUser user_type(m_ast_importer->DeportType(context,
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parser_type.GetASTContext(),
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parser_type.GetOpaqueQualType()),
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context);
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if (!user_type.GetOpaqueQualType())
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{
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if (log)
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log->Printf("Persistent variable's type wasn't copied successfully");
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return false;
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}
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if (!m_parser_vars->m_target_info.IsValid())
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return false;
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ClangExpressionVariableSP var_sp = m_parser_vars->m_persistent_vars->CreatePersistentVariable (exe_ctx.GetBestExecutionContextScope (),
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name,
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user_type,
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m_parser_vars->m_target_info.byte_order,
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m_parser_vars->m_target_info.address_byte_size);
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if (!var_sp)
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return false;
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var_sp->m_frozen_sp->SetHasCompleteType();
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if (is_result)
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var_sp->m_flags |= ClangExpressionVariable::EVNeedsFreezeDry;
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else
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var_sp->m_flags |= ClangExpressionVariable::EVKeepInTarget; // explicitly-declared persistent variables should persist
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if (is_lvalue)
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{
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var_sp->m_flags |= ClangExpressionVariable::EVIsProgramReference;
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}
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else
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{
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var_sp->m_flags |= ClangExpressionVariable::EVIsLLDBAllocated;
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var_sp->m_flags |= ClangExpressionVariable::EVNeedsAllocation;
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}
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if (m_keep_result_in_memory)
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{
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var_sp->m_flags |= ClangExpressionVariable::EVKeepInTarget;
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}
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if (log)
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log->Printf("Created persistent variable with flags 0x%hx", var_sp->m_flags);
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var_sp->EnableParserVars(GetParserID());
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ClangExpressionVariable::ParserVars *parser_vars = var_sp->GetParserVars(GetParserID());
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parser_vars->m_named_decl = decl;
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parser_vars->m_parser_type = parser_type;
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return true;
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}
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bool
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ClangExpressionDeclMap::AddValueToStruct
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(
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const NamedDecl *decl,
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const ConstString &name,
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llvm::Value *value,
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size_t size,
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off_t alignment
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)
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{
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assert (m_struct_vars.get());
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assert (m_parser_vars.get());
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bool is_persistent_variable = false;
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Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
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m_struct_vars->m_struct_laid_out = false;
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if (m_struct_members.GetVariable(decl, GetParserID()))
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return true;
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ClangExpressionVariableSP var_sp (m_found_entities.GetVariable(decl, GetParserID()));
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if (!var_sp)
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{
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var_sp = m_parser_vars->m_persistent_vars->GetVariable(decl, GetParserID());
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is_persistent_variable = true;
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}
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if (!var_sp)
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return false;
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if (log)
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log->Printf("Adding value for (NamedDecl*)%p [%s - %s] to the structure",
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decl,
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name.GetCString(),
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var_sp->GetName().GetCString());
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// We know entity->m_parser_vars is valid because we used a parser variable
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// to find it
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ClangExpressionVariable::ParserVars *parser_vars = var_sp->GetParserVars(GetParserID());
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parser_vars->m_llvm_value = value;
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if (ClangExpressionVariable::JITVars *jit_vars = var_sp->GetJITVars(GetParserID()))
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{
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// We already laid this out; do not touch
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if (log)
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log->Printf("Already placed at 0x%llx", (unsigned long long)jit_vars->m_offset);
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}
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var_sp->EnableJITVars(GetParserID());
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ClangExpressionVariable::JITVars *jit_vars = var_sp->GetJITVars(GetParserID());
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jit_vars->m_alignment = alignment;
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jit_vars->m_size = size;
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m_struct_members.AddVariable(var_sp);
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if (m_parser_vars->m_materializer)
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{
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uint32_t offset = 0;
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Error err;
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if (is_persistent_variable)
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{
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offset = m_parser_vars->m_materializer->AddPersistentVariable(var_sp, err);
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}
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else
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{
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if (const lldb_private::Symbol *sym = parser_vars->m_lldb_sym)
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offset = m_parser_vars->m_materializer->AddSymbol(*sym, err);
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else if (const RegisterInfo *reg_info = var_sp->GetRegisterInfo())
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offset = m_parser_vars->m_materializer->AddRegister(*reg_info, err);
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else if (parser_vars->m_lldb_var)
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offset = m_parser_vars->m_materializer->AddVariable(parser_vars->m_lldb_var, err);
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}
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if (!err.Success())
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return false;
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if (log)
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log->Printf("Placed at 0x%llx", (unsigned long long)offset);
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jit_vars->m_offset = offset; // TODO DoStructLayout() should not change this.
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}
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return true;
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}
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bool
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ClangExpressionDeclMap::DoStructLayout ()
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{
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assert (m_struct_vars.get());
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if (m_struct_vars->m_struct_laid_out)
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return true;
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if (!m_parser_vars->m_materializer)
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return false;
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m_struct_vars->m_struct_alignment = m_parser_vars->m_materializer->GetStructAlignment();
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m_struct_vars->m_struct_size = m_parser_vars->m_materializer->GetStructByteSize();
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m_struct_vars->m_struct_laid_out = true;
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return true;
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}
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bool ClangExpressionDeclMap::GetStructInfo
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(
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uint32_t &num_elements,
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size_t &size,
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off_t &alignment
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)
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{
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assert (m_struct_vars.get());
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if (!m_struct_vars->m_struct_laid_out)
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return false;
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num_elements = m_struct_members.GetSize();
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size = m_struct_vars->m_struct_size;
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alignment = m_struct_vars->m_struct_alignment;
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return true;
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}
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bool
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ClangExpressionDeclMap::GetStructElement
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(
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const NamedDecl *&decl,
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llvm::Value *&value,
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off_t &offset,
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ConstString &name,
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uint32_t index
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)
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{
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assert (m_struct_vars.get());
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if (!m_struct_vars->m_struct_laid_out)
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return false;
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if (index >= m_struct_members.GetSize())
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return false;
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ClangExpressionVariableSP member_sp(m_struct_members.GetVariableAtIndex(index));
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if (!member_sp)
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return false;
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ClangExpressionVariable::ParserVars *parser_vars = member_sp->GetParserVars(GetParserID());
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ClangExpressionVariable::JITVars *jit_vars = member_sp->GetJITVars(GetParserID());
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if (!parser_vars ||
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!jit_vars ||
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!member_sp->GetValueObject())
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return false;
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decl = parser_vars->m_named_decl;
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value = parser_vars->m_llvm_value;
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offset = jit_vars->m_offset;
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name = member_sp->GetName();
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return true;
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}
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bool
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ClangExpressionDeclMap::GetFunctionInfo
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(
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const NamedDecl *decl,
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uint64_t &ptr
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)
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{
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ClangExpressionVariableSP entity_sp(m_found_entities.GetVariable(decl, GetParserID()));
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if (!entity_sp)
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return false;
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// We know m_parser_vars is valid since we searched for the variable by
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// its NamedDecl
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ClangExpressionVariable::ParserVars *parser_vars = entity_sp->GetParserVars(GetParserID());
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ptr = parser_vars->m_lldb_value.GetScalar().ULongLong();
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return true;
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}
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static void
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FindCodeSymbolInContext
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(
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const ConstString &name,
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SymbolContext &sym_ctx,
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SymbolContextList &sc_list
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)
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{
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SymbolContextList temp_sc_list;
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if (sym_ctx.module_sp)
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sym_ctx.module_sp->FindSymbolsWithNameAndType(name, eSymbolTypeAny, temp_sc_list);
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if (!sc_list.GetSize() && sym_ctx.target_sp)
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sym_ctx.target_sp->GetImages().FindSymbolsWithNameAndType(name, eSymbolTypeAny, temp_sc_list);
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unsigned temp_sc_list_size = temp_sc_list.GetSize();
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for (unsigned i = 0; i < temp_sc_list_size; i++)
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{
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SymbolContext sym_ctx;
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temp_sc_list.GetContextAtIndex(i, sym_ctx);
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if (sym_ctx.symbol)
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{
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switch (sym_ctx.symbol->GetType())
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{
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case eSymbolTypeCode:
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case eSymbolTypeResolver:
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sc_list.Append(sym_ctx);
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break;
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default:
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break;
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}
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}
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}
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}
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bool
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ClangExpressionDeclMap::GetFunctionAddress
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(
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const ConstString &name,
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uint64_t &func_addr
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)
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|
{
|
|
assert (m_parser_vars.get());
|
|
|
|
Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
|
|
ExecutionContext &exe_ctx = m_parser_vars->m_exe_ctx;
|
|
Target *target = exe_ctx.GetTargetPtr();
|
|
// Back out in all cases where we're not fully initialized
|
|
if (target == NULL)
|
|
return false;
|
|
if (!m_parser_vars->m_sym_ctx.target_sp)
|
|
return false;
|
|
|
|
SymbolContextList sc_list;
|
|
|
|
FindCodeSymbolInContext(name, m_parser_vars->m_sym_ctx, sc_list);
|
|
|
|
if (!sc_list.GetSize())
|
|
{
|
|
// We occasionally get debug information in which a const function is reported
|
|
// as non-const, so the mangled name is wrong. This is a hack to compensate.
|
|
|
|
if (!strncmp(name.GetCString(), "_ZN", 3) &&
|
|
strncmp(name.GetCString(), "_ZNK", 4))
|
|
{
|
|
std::string fixed_scratch("_ZNK");
|
|
fixed_scratch.append(name.GetCString() + 3);
|
|
ConstString fixed_name(fixed_scratch.c_str());
|
|
|
|
if (log)
|
|
log->Printf("Failed to find symbols given non-const name %s; trying %s", name.GetCString(), fixed_name.GetCString());
|
|
|
|
FindCodeSymbolInContext(fixed_name, m_parser_vars->m_sym_ctx, sc_list);
|
|
}
|
|
}
|
|
|
|
if (!sc_list.GetSize())
|
|
return false;
|
|
|
|
SymbolContext sym_ctx;
|
|
sc_list.GetContextAtIndex(0, sym_ctx);
|
|
|
|
const Address *func_so_addr = NULL;
|
|
bool is_indirect_function = false;
|
|
|
|
if (sym_ctx.function)
|
|
func_so_addr = &sym_ctx.function->GetAddressRange().GetBaseAddress();
|
|
else if (sym_ctx.symbol) {
|
|
func_so_addr = &sym_ctx.symbol->GetAddress();
|
|
is_indirect_function = sym_ctx.symbol->IsIndirect();
|
|
} else
|
|
return false;
|
|
|
|
if (!func_so_addr || !func_so_addr->IsValid())
|
|
return false;
|
|
|
|
func_addr = func_so_addr->GetCallableLoadAddress (target, is_indirect_function);
|
|
|
|
return true;
|
|
}
|
|
|
|
addr_t
|
|
ClangExpressionDeclMap::GetSymbolAddress (Target &target, Process *process, const ConstString &name, lldb::SymbolType symbol_type)
|
|
{
|
|
SymbolContextList sc_list;
|
|
|
|
target.GetImages().FindSymbolsWithNameAndType(name, symbol_type, sc_list);
|
|
|
|
const uint32_t num_matches = sc_list.GetSize();
|
|
addr_t symbol_load_addr = LLDB_INVALID_ADDRESS;
|
|
|
|
for (uint32_t i=0; i<num_matches && (symbol_load_addr == 0 || symbol_load_addr == LLDB_INVALID_ADDRESS); i++)
|
|
{
|
|
SymbolContext sym_ctx;
|
|
sc_list.GetContextAtIndex(i, sym_ctx);
|
|
|
|
const Address *sym_address = &sym_ctx.symbol->GetAddress();
|
|
|
|
if (!sym_address || !sym_address->IsValid())
|
|
continue;
|
|
|
|
if (sym_address)
|
|
{
|
|
switch (sym_ctx.symbol->GetType())
|
|
{
|
|
case eSymbolTypeCode:
|
|
case eSymbolTypeTrampoline:
|
|
symbol_load_addr = sym_address->GetCallableLoadAddress (&target);
|
|
break;
|
|
|
|
case eSymbolTypeResolver:
|
|
symbol_load_addr = sym_address->GetCallableLoadAddress (&target, true);
|
|
break;
|
|
|
|
case eSymbolTypeData:
|
|
case eSymbolTypeRuntime:
|
|
case eSymbolTypeVariable:
|
|
case eSymbolTypeLocal:
|
|
case eSymbolTypeParam:
|
|
case eSymbolTypeInvalid:
|
|
case eSymbolTypeAbsolute:
|
|
case eSymbolTypeException:
|
|
case eSymbolTypeSourceFile:
|
|
case eSymbolTypeHeaderFile:
|
|
case eSymbolTypeObjectFile:
|
|
case eSymbolTypeCommonBlock:
|
|
case eSymbolTypeBlock:
|
|
case eSymbolTypeVariableType:
|
|
case eSymbolTypeLineEntry:
|
|
case eSymbolTypeLineHeader:
|
|
case eSymbolTypeScopeBegin:
|
|
case eSymbolTypeScopeEnd:
|
|
case eSymbolTypeAdditional:
|
|
case eSymbolTypeCompiler:
|
|
case eSymbolTypeInstrumentation:
|
|
case eSymbolTypeUndefined:
|
|
case eSymbolTypeObjCClass:
|
|
case eSymbolTypeObjCMetaClass:
|
|
case eSymbolTypeObjCIVar:
|
|
symbol_load_addr = sym_address->GetLoadAddress (&target);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (symbol_load_addr == LLDB_INVALID_ADDRESS && process)
|
|
{
|
|
ObjCLanguageRuntime *runtime = process->GetObjCLanguageRuntime();
|
|
|
|
if (runtime)
|
|
{
|
|
symbol_load_addr = runtime->LookupRuntimeSymbol(name);
|
|
}
|
|
}
|
|
|
|
return symbol_load_addr;
|
|
}
|
|
|
|
addr_t
|
|
ClangExpressionDeclMap::GetSymbolAddress (const ConstString &name, lldb::SymbolType symbol_type)
|
|
{
|
|
assert (m_parser_vars.get());
|
|
|
|
if (!m_parser_vars->m_exe_ctx.GetTargetPtr())
|
|
return false;
|
|
|
|
return GetSymbolAddress(m_parser_vars->m_exe_ctx.GetTargetRef(), m_parser_vars->m_exe_ctx.GetProcessPtr(), name, symbol_type);
|
|
}
|
|
|
|
const Symbol *
|
|
ClangExpressionDeclMap::FindGlobalDataSymbol (Target &target,
|
|
const ConstString &name)
|
|
{
|
|
SymbolContextList sc_list;
|
|
|
|
target.GetImages().FindSymbolsWithNameAndType(name, eSymbolTypeAny, sc_list);
|
|
|
|
const uint32_t matches = sc_list.GetSize();
|
|
for (uint32_t i=0; i<matches; ++i)
|
|
{
|
|
SymbolContext sym_ctx;
|
|
sc_list.GetContextAtIndex(i, sym_ctx);
|
|
if (sym_ctx.symbol)
|
|
{
|
|
const Symbol *symbol = sym_ctx.symbol;
|
|
const Address *sym_address = &symbol->GetAddress();
|
|
|
|
if (sym_address && sym_address->IsValid())
|
|
{
|
|
switch (symbol->GetType())
|
|
{
|
|
case eSymbolTypeData:
|
|
case eSymbolTypeRuntime:
|
|
case eSymbolTypeAbsolute:
|
|
case eSymbolTypeObjCClass:
|
|
case eSymbolTypeObjCMetaClass:
|
|
case eSymbolTypeObjCIVar:
|
|
if (symbol->GetDemangledNameIsSynthesized())
|
|
{
|
|
// If the demangled name was synthesized, then don't use it
|
|
// for expressions. Only let the symbol match if the mangled
|
|
// named matches for these symbols.
|
|
if (symbol->GetMangled().GetMangledName() != name)
|
|
break;
|
|
}
|
|
return symbol;
|
|
|
|
case eSymbolTypeCode: // We already lookup functions elsewhere
|
|
case eSymbolTypeVariable:
|
|
case eSymbolTypeLocal:
|
|
case eSymbolTypeParam:
|
|
case eSymbolTypeTrampoline:
|
|
case eSymbolTypeInvalid:
|
|
case eSymbolTypeException:
|
|
case eSymbolTypeSourceFile:
|
|
case eSymbolTypeHeaderFile:
|
|
case eSymbolTypeObjectFile:
|
|
case eSymbolTypeCommonBlock:
|
|
case eSymbolTypeBlock:
|
|
case eSymbolTypeVariableType:
|
|
case eSymbolTypeLineEntry:
|
|
case eSymbolTypeLineHeader:
|
|
case eSymbolTypeScopeBegin:
|
|
case eSymbolTypeScopeEnd:
|
|
case eSymbolTypeAdditional:
|
|
case eSymbolTypeCompiler:
|
|
case eSymbolTypeInstrumentation:
|
|
case eSymbolTypeUndefined:
|
|
case eSymbolTypeResolver:
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
lldb::VariableSP
|
|
ClangExpressionDeclMap::FindGlobalVariable
|
|
(
|
|
Target &target,
|
|
ModuleSP &module,
|
|
const ConstString &name,
|
|
ClangNamespaceDecl *namespace_decl,
|
|
TypeFromUser *type
|
|
)
|
|
{
|
|
VariableList vars;
|
|
|
|
if (module && namespace_decl)
|
|
module->FindGlobalVariables (name, namespace_decl, true, -1, vars);
|
|
else
|
|
target.GetImages().FindGlobalVariables(name, true, -1, vars);
|
|
|
|
if (vars.GetSize())
|
|
{
|
|
if (type)
|
|
{
|
|
for (size_t i = 0; i < vars.GetSize(); ++i)
|
|
{
|
|
VariableSP var_sp = vars.GetVariableAtIndex(i);
|
|
|
|
if (ClangASTContext::AreTypesSame(*type, var_sp->GetType()->GetClangFullType()))
|
|
return var_sp;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
return vars.GetVariableAtIndex(0);
|
|
}
|
|
}
|
|
|
|
return VariableSP();
|
|
}
|
|
|
|
// Interface for ClangASTSource
|
|
|
|
void
|
|
ClangExpressionDeclMap::FindExternalVisibleDecls (NameSearchContext &context)
|
|
{
|
|
assert (m_ast_context);
|
|
|
|
ClangASTMetrics::RegisterVisibleQuery();
|
|
|
|
const ConstString name(context.m_decl_name.getAsString().c_str());
|
|
|
|
Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
|
|
|
|
if (GetImportInProgress())
|
|
{
|
|
if (log && log->GetVerbose())
|
|
log->Printf("Ignoring a query during an import");
|
|
return;
|
|
}
|
|
|
|
static unsigned int invocation_id = 0;
|
|
unsigned int current_id = invocation_id++;
|
|
|
|
if (log)
|
|
{
|
|
if (!context.m_decl_context)
|
|
log->Printf("ClangExpressionDeclMap::FindExternalVisibleDecls[%u] for '%s' in a NULL DeclContext", current_id, name.GetCString());
|
|
else if (const NamedDecl *context_named_decl = dyn_cast<NamedDecl>(context.m_decl_context))
|
|
log->Printf("ClangExpressionDeclMap::FindExternalVisibleDecls[%u] for '%s' in '%s'", current_id, name.GetCString(), context_named_decl->getNameAsString().c_str());
|
|
else
|
|
log->Printf("ClangExpressionDeclMap::FindExternalVisibleDecls[%u] for '%s' in a '%s'", current_id, name.GetCString(), context.m_decl_context->getDeclKindName());
|
|
}
|
|
|
|
if (const NamespaceDecl *namespace_context = dyn_cast<NamespaceDecl>(context.m_decl_context))
|
|
{
|
|
ClangASTImporter::NamespaceMapSP namespace_map = m_ast_importer->GetNamespaceMap(namespace_context);
|
|
|
|
if (log && log->GetVerbose())
|
|
log->Printf(" CEDM::FEVD[%u] Inspecting (NamespaceMap*)%p (%d entries)",
|
|
current_id,
|
|
namespace_map.get(),
|
|
(int)namespace_map->size());
|
|
|
|
if (!namespace_map)
|
|
return;
|
|
|
|
for (ClangASTImporter::NamespaceMap::iterator i = namespace_map->begin(), e = namespace_map->end();
|
|
i != e;
|
|
++i)
|
|
{
|
|
if (log)
|
|
log->Printf(" CEDM::FEVD[%u] Searching namespace %s in module %s",
|
|
current_id,
|
|
i->second.GetNamespaceDecl()->getNameAsString().c_str(),
|
|
i->first->GetFileSpec().GetFilename().GetCString());
|
|
|
|
FindExternalVisibleDecls(context,
|
|
i->first,
|
|
i->second,
|
|
current_id);
|
|
}
|
|
}
|
|
else if (isa<TranslationUnitDecl>(context.m_decl_context))
|
|
{
|
|
ClangNamespaceDecl namespace_decl;
|
|
|
|
if (log)
|
|
log->Printf(" CEDM::FEVD[%u] Searching the root namespace", current_id);
|
|
|
|
FindExternalVisibleDecls(context,
|
|
lldb::ModuleSP(),
|
|
namespace_decl,
|
|
current_id);
|
|
}
|
|
|
|
if (!context.m_found.variable)
|
|
ClangASTSource::FindExternalVisibleDecls(context);
|
|
}
|
|
|
|
void
|
|
ClangExpressionDeclMap::FindExternalVisibleDecls (NameSearchContext &context,
|
|
lldb::ModuleSP module_sp,
|
|
ClangNamespaceDecl &namespace_decl,
|
|
unsigned int current_id)
|
|
{
|
|
assert (m_ast_context);
|
|
|
|
Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
|
|
|
|
SymbolContextList sc_list;
|
|
|
|
const ConstString name(context.m_decl_name.getAsString().c_str());
|
|
|
|
const char *name_unique_cstr = name.GetCString();
|
|
|
|
if (name_unique_cstr == NULL)
|
|
return;
|
|
|
|
static ConstString id_name("id");
|
|
static ConstString Class_name("Class");
|
|
|
|
if (name == id_name || name == Class_name)
|
|
return;
|
|
|
|
// Only look for functions by name out in our symbols if the function
|
|
// doesn't start with our phony prefix of '$'
|
|
Target *target = m_parser_vars->m_exe_ctx.GetTargetPtr();
|
|
StackFrame *frame = m_parser_vars->m_exe_ctx.GetFramePtr();
|
|
if (name_unique_cstr[0] == '$' && !namespace_decl)
|
|
{
|
|
static ConstString g_lldb_class_name ("$__lldb_class");
|
|
|
|
if (name == g_lldb_class_name)
|
|
{
|
|
// Clang is looking for the type of "this"
|
|
|
|
if (frame == NULL)
|
|
return;
|
|
|
|
SymbolContext sym_ctx = frame->GetSymbolContext(lldb::eSymbolContextFunction);
|
|
|
|
if (!sym_ctx.function)
|
|
return;
|
|
|
|
// Get the block that defines the function
|
|
Block *function_block = sym_ctx.GetFunctionBlock();
|
|
|
|
if (!function_block)
|
|
return;
|
|
|
|
clang::DeclContext *decl_context = function_block->GetClangDeclContext();
|
|
|
|
if (!decl_context)
|
|
return;
|
|
|
|
clang::CXXMethodDecl *method_decl = llvm::dyn_cast<clang::CXXMethodDecl>(decl_context);
|
|
|
|
if (method_decl)
|
|
{
|
|
clang::CXXRecordDecl *class_decl = method_decl->getParent();
|
|
|
|
QualType class_qual_type(class_decl->getTypeForDecl(), 0);
|
|
|
|
TypeFromUser class_user_type (class_qual_type.getAsOpaquePtr(),
|
|
&class_decl->getASTContext());
|
|
|
|
if (log)
|
|
{
|
|
ASTDumper ast_dumper(class_qual_type);
|
|
log->Printf(" CEDM::FEVD[%u] Adding type for $__lldb_class: %s", current_id, ast_dumper.GetCString());
|
|
}
|
|
|
|
TypeFromParser class_type = CopyClassType(class_user_type, current_id);
|
|
|
|
if (!class_type.IsValid())
|
|
return;
|
|
|
|
TypeSourceInfo *type_source_info = m_ast_context->getTrivialTypeSourceInfo(QualType::getFromOpaquePtr(class_type.GetOpaqueQualType()));
|
|
|
|
if (!type_source_info)
|
|
return;
|
|
|
|
TypedefDecl *typedef_decl = TypedefDecl::Create(*m_ast_context,
|
|
m_ast_context->getTranslationUnitDecl(),
|
|
SourceLocation(),
|
|
SourceLocation(),
|
|
context.m_decl_name.getAsIdentifierInfo(),
|
|
type_source_info);
|
|
|
|
|
|
if (!typedef_decl)
|
|
return;
|
|
|
|
context.AddNamedDecl(typedef_decl);
|
|
|
|
if (method_decl->isInstance())
|
|
{
|
|
// self is a pointer to the object
|
|
|
|
QualType class_pointer_type = method_decl->getASTContext().getPointerType(class_qual_type);
|
|
|
|
TypeFromUser self_user_type(class_pointer_type.getAsOpaquePtr(),
|
|
&method_decl->getASTContext());
|
|
|
|
m_struct_vars->m_object_pointer_type = self_user_type;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
// This branch will get hit if we are executing code in the context of a function that
|
|
// claims to have an object pointer (through DW_AT_object_pointer?) but is not formally a
|
|
// method of the class. In that case, just look up the "this" variable in the the current
|
|
// scope and use its type.
|
|
// FIXME: This code is formally correct, but clang doesn't currently emit DW_AT_object_pointer
|
|
// for C++ so it hasn't actually been tested.
|
|
|
|
VariableList *vars = frame->GetVariableList(false);
|
|
|
|
lldb::VariableSP this_var = vars->FindVariable(ConstString("this"));
|
|
|
|
if (this_var &&
|
|
this_var->IsInScope(frame) &&
|
|
this_var->LocationIsValidForFrame (frame))
|
|
{
|
|
Type *this_type = this_var->GetType();
|
|
|
|
if (!this_type)
|
|
return;
|
|
|
|
ClangASTType pointee_type = this_type->GetClangForwardType().GetPointeeType();
|
|
|
|
if (pointee_type.IsValid())
|
|
{
|
|
if (log)
|
|
{
|
|
ASTDumper ast_dumper(this_type->GetClangFullType());
|
|
log->Printf(" FEVD[%u] Adding type for $__lldb_objc_class: %s", current_id, ast_dumper.GetCString());
|
|
}
|
|
|
|
TypeFromUser class_user_type(pointee_type);
|
|
AddOneType(context, class_user_type, current_id);
|
|
|
|
|
|
TypeFromUser this_user_type(this_type->GetClangFullType());
|
|
m_struct_vars->m_object_pointer_type = this_user_type;
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
static ConstString g_lldb_objc_class_name ("$__lldb_objc_class");
|
|
if (name == g_lldb_objc_class_name)
|
|
{
|
|
// Clang is looking for the type of "*self"
|
|
|
|
if (!frame)
|
|
return;
|
|
|
|
SymbolContext sym_ctx = frame->GetSymbolContext(lldb::eSymbolContextFunction);
|
|
|
|
if (!sym_ctx.function)
|
|
return;
|
|
|
|
// Get the block that defines the function
|
|
Block *function_block = sym_ctx.GetFunctionBlock();
|
|
|
|
if (!function_block)
|
|
return;
|
|
|
|
clang::DeclContext *decl_context = function_block->GetClangDeclContext();
|
|
|
|
if (!decl_context)
|
|
return;
|
|
|
|
clang::ObjCMethodDecl *method_decl = llvm::dyn_cast<clang::ObjCMethodDecl>(decl_context);
|
|
|
|
if (method_decl)
|
|
{
|
|
ObjCInterfaceDecl* self_interface = method_decl->getClassInterface();
|
|
|
|
if (!self_interface)
|
|
return;
|
|
|
|
const clang::Type *interface_type = self_interface->getTypeForDecl();
|
|
|
|
if (!interface_type)
|
|
return; // This is unlikely, but we have seen crashes where this occurred
|
|
|
|
TypeFromUser class_user_type(QualType(interface_type, 0).getAsOpaquePtr(),
|
|
&method_decl->getASTContext());
|
|
|
|
if (log)
|
|
{
|
|
ASTDumper ast_dumper(interface_type);
|
|
log->Printf(" FEVD[%u] Adding type for $__lldb_objc_class: %s", current_id, ast_dumper.GetCString());
|
|
}
|
|
|
|
AddOneType(context, class_user_type, current_id);
|
|
|
|
if (method_decl->isInstanceMethod())
|
|
{
|
|
// self is a pointer to the object
|
|
|
|
QualType class_pointer_type = method_decl->getASTContext().getObjCObjectPointerType(QualType(interface_type, 0));
|
|
|
|
TypeFromUser self_user_type(class_pointer_type.getAsOpaquePtr(),
|
|
&method_decl->getASTContext());
|
|
|
|
m_struct_vars->m_object_pointer_type = self_user_type;
|
|
}
|
|
else
|
|
{
|
|
// self is a Class pointer
|
|
QualType class_type = method_decl->getASTContext().getObjCClassType();
|
|
|
|
TypeFromUser self_user_type(class_type.getAsOpaquePtr(),
|
|
&method_decl->getASTContext());
|
|
|
|
m_struct_vars->m_object_pointer_type = self_user_type;
|
|
}
|
|
|
|
return;
|
|
}
|
|
else
|
|
{
|
|
// This branch will get hit if we are executing code in the context of a function that
|
|
// claims to have an object pointer (through DW_AT_object_pointer?) but is not formally a
|
|
// method of the class. In that case, just look up the "self" variable in the the current
|
|
// scope and use its type.
|
|
|
|
VariableList *vars = frame->GetVariableList(false);
|
|
|
|
lldb::VariableSP self_var = vars->FindVariable(ConstString("self"));
|
|
|
|
if (self_var &&
|
|
self_var->IsInScope(frame) &&
|
|
self_var->LocationIsValidForFrame (frame))
|
|
{
|
|
Type *self_type = self_var->GetType();
|
|
|
|
if (!self_type)
|
|
return;
|
|
|
|
ClangASTType self_clang_type = self_type->GetClangFullType();
|
|
|
|
if (self_clang_type.IsObjCClassType())
|
|
{
|
|
return;
|
|
}
|
|
else if (self_clang_type.IsObjCObjectPointerType())
|
|
{
|
|
self_clang_type = self_clang_type.GetPointeeType();
|
|
|
|
if (!self_clang_type)
|
|
return;
|
|
|
|
if (log)
|
|
{
|
|
ASTDumper ast_dumper(self_type->GetClangFullType());
|
|
log->Printf(" FEVD[%u] Adding type for $__lldb_objc_class: %s", current_id, ast_dumper.GetCString());
|
|
}
|
|
|
|
TypeFromUser class_user_type (self_clang_type);
|
|
|
|
AddOneType(context, class_user_type, current_id);
|
|
|
|
TypeFromUser self_user_type(self_type->GetClangFullType());
|
|
|
|
m_struct_vars->m_object_pointer_type = self_user_type;
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
// any other $__lldb names should be weeded out now
|
|
if (!::strncmp(name_unique_cstr, "$__lldb", sizeof("$__lldb") - 1))
|
|
return;
|
|
|
|
do
|
|
{
|
|
if (!target)
|
|
break;
|
|
|
|
ClangASTContext *scratch_clang_ast_context = target->GetScratchClangASTContext();
|
|
|
|
if (!scratch_clang_ast_context)
|
|
break;
|
|
|
|
ASTContext *scratch_ast_context = scratch_clang_ast_context->getASTContext();
|
|
|
|
if (!scratch_ast_context)
|
|
break;
|
|
|
|
TypeDecl *ptype_type_decl = m_parser_vars->m_persistent_vars->GetPersistentType(name);
|
|
|
|
if (!ptype_type_decl)
|
|
break;
|
|
|
|
Decl *parser_ptype_decl = m_ast_importer->CopyDecl(m_ast_context, scratch_ast_context, ptype_type_decl);
|
|
|
|
if (!parser_ptype_decl)
|
|
break;
|
|
|
|
TypeDecl *parser_ptype_type_decl = dyn_cast<TypeDecl>(parser_ptype_decl);
|
|
|
|
if (!parser_ptype_type_decl)
|
|
break;
|
|
|
|
if (log)
|
|
log->Printf(" CEDM::FEVD[%u] Found persistent type %s", current_id, name.GetCString());
|
|
|
|
context.AddNamedDecl(parser_ptype_type_decl);
|
|
} while (0);
|
|
|
|
ClangExpressionVariableSP pvar_sp(m_parser_vars->m_persistent_vars->GetVariable(name));
|
|
|
|
if (pvar_sp)
|
|
{
|
|
AddOneVariable(context, pvar_sp, current_id);
|
|
return;
|
|
}
|
|
|
|
const char *reg_name(&name.GetCString()[1]);
|
|
|
|
if (m_parser_vars->m_exe_ctx.GetRegisterContext())
|
|
{
|
|
const RegisterInfo *reg_info(m_parser_vars->m_exe_ctx.GetRegisterContext()->GetRegisterInfoByName(reg_name));
|
|
|
|
if (reg_info)
|
|
{
|
|
if (log)
|
|
log->Printf(" CEDM::FEVD[%u] Found register %s", current_id, reg_info->name);
|
|
|
|
AddOneRegister(context, reg_info, current_id);
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
ValueObjectSP valobj;
|
|
VariableSP var;
|
|
Error err;
|
|
|
|
if (frame && !namespace_decl)
|
|
{
|
|
valobj = frame->GetValueForVariableExpressionPath(name_unique_cstr,
|
|
eNoDynamicValues,
|
|
StackFrame::eExpressionPathOptionCheckPtrVsMember ||
|
|
StackFrame::eExpressionPathOptionsAllowDirectIVarAccess ||
|
|
StackFrame::eExpressionPathOptionsNoFragileObjcIvar ||
|
|
StackFrame::eExpressionPathOptionsNoSyntheticChildren ||
|
|
StackFrame::eExpressionPathOptionsNoSyntheticArrayRange,
|
|
var,
|
|
err);
|
|
|
|
// If we found a variable in scope, no need to pull up function names
|
|
if (err.Success() && var)
|
|
{
|
|
AddOneVariable(context, var, valobj, current_id);
|
|
context.m_found.variable = true;
|
|
return;
|
|
}
|
|
}
|
|
|
|
if (target)
|
|
{
|
|
var = FindGlobalVariable (*target,
|
|
module_sp,
|
|
name,
|
|
&namespace_decl,
|
|
NULL);
|
|
|
|
if (var)
|
|
{
|
|
valobj = ValueObjectVariable::Create(target, var);
|
|
AddOneVariable(context, var, valobj, current_id);
|
|
context.m_found.variable = true;
|
|
return;
|
|
}
|
|
}
|
|
|
|
if (!context.m_found.variable)
|
|
{
|
|
const bool include_inlines = false;
|
|
const bool append = false;
|
|
|
|
if (namespace_decl && module_sp)
|
|
{
|
|
const bool include_symbols = false;
|
|
|
|
module_sp->FindFunctions(name,
|
|
&namespace_decl,
|
|
eFunctionNameTypeBase,
|
|
include_symbols,
|
|
include_inlines,
|
|
append,
|
|
sc_list);
|
|
}
|
|
else if (target && !namespace_decl)
|
|
{
|
|
const bool include_symbols = true;
|
|
|
|
// TODO Fix FindFunctions so that it doesn't return
|
|
// instance methods for eFunctionNameTypeBase.
|
|
|
|
target->GetImages().FindFunctions(name,
|
|
eFunctionNameTypeFull,
|
|
include_symbols,
|
|
include_inlines,
|
|
append,
|
|
sc_list);
|
|
}
|
|
|
|
if (sc_list.GetSize())
|
|
{
|
|
Symbol *generic_symbol = NULL;
|
|
Symbol *non_extern_symbol = NULL;
|
|
|
|
for (uint32_t index = 0, num_indices = sc_list.GetSize();
|
|
index < num_indices;
|
|
++index)
|
|
{
|
|
SymbolContext sym_ctx;
|
|
sc_list.GetContextAtIndex(index, sym_ctx);
|
|
|
|
if (sym_ctx.function)
|
|
{
|
|
clang::DeclContext *decl_ctx = sym_ctx.function->GetClangDeclContext();
|
|
|
|
if (!decl_ctx)
|
|
continue;
|
|
|
|
// Filter out class/instance methods.
|
|
if (dyn_cast<clang::ObjCMethodDecl>(decl_ctx))
|
|
continue;
|
|
if (dyn_cast<clang::CXXMethodDecl>(decl_ctx))
|
|
continue;
|
|
|
|
AddOneFunction(context, sym_ctx.function, NULL, current_id);
|
|
context.m_found.function_with_type_info = true;
|
|
context.m_found.function = true;
|
|
}
|
|
else if (sym_ctx.symbol)
|
|
{
|
|
if (sym_ctx.symbol->IsExternal())
|
|
generic_symbol = sym_ctx.symbol;
|
|
else
|
|
non_extern_symbol = sym_ctx.symbol;
|
|
}
|
|
}
|
|
|
|
if (!context.m_found.function_with_type_info)
|
|
{
|
|
if (generic_symbol)
|
|
{
|
|
AddOneFunction (context, NULL, generic_symbol, current_id);
|
|
context.m_found.function = true;
|
|
}
|
|
else if (non_extern_symbol)
|
|
{
|
|
AddOneFunction (context, NULL, non_extern_symbol, current_id);
|
|
context.m_found.function = true;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (target && !context.m_found.variable && !namespace_decl)
|
|
{
|
|
// We couldn't find a non-symbol variable for this. Now we'll hunt for a generic
|
|
// data symbol, and -- if it is found -- treat it as a variable.
|
|
|
|
const Symbol *data_symbol = FindGlobalDataSymbol(*target, name);
|
|
|
|
if (data_symbol)
|
|
{
|
|
AddOneGenericVariable(context, *data_symbol, current_id);
|
|
context.m_found.variable = true;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
static clang_type_t
|
|
MaybePromoteToBlockPointerType
|
|
(
|
|
ASTContext *ast_context,
|
|
clang_type_t candidate_type
|
|
)
|
|
{
|
|
if (!candidate_type)
|
|
return candidate_type;
|
|
|
|
QualType candidate_qual_type = QualType::getFromOpaquePtr(candidate_type);
|
|
|
|
const PointerType *candidate_pointer_type = dyn_cast<PointerType>(candidate_qual_type);
|
|
|
|
if (!candidate_pointer_type)
|
|
return candidate_type;
|
|
|
|
QualType pointee_qual_type = candidate_pointer_type->getPointeeType();
|
|
|
|
const RecordType *pointee_record_type = dyn_cast<RecordType>(pointee_qual_type);
|
|
|
|
if (!pointee_record_type)
|
|
return candidate_type;
|
|
|
|
RecordDecl *pointee_record_decl = pointee_record_type->getDecl();
|
|
|
|
if (!pointee_record_decl->isRecord())
|
|
return candidate_type;
|
|
|
|
if (!pointee_record_decl->getName().startswith(llvm::StringRef("__block_literal_")))
|
|
return candidate_type;
|
|
|
|
QualType generic_function_type = ast_context->getFunctionNoProtoType(ast_context->UnknownAnyTy);
|
|
QualType block_pointer_type = ast_context->getBlockPointerType(generic_function_type);
|
|
|
|
return block_pointer_type.getAsOpaquePtr();
|
|
}
|
|
|
|
bool
|
|
ClangExpressionDeclMap::GetVariableValue (VariableSP &var,
|
|
lldb_private::Value &var_location,
|
|
TypeFromUser *user_type,
|
|
TypeFromParser *parser_type)
|
|
{
|
|
Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
|
|
|
|
Type *var_type = var->GetType();
|
|
|
|
if (!var_type)
|
|
{
|
|
if (log)
|
|
log->PutCString("Skipped a definition because it has no type");
|
|
return false;
|
|
}
|
|
|
|
ClangASTType var_clang_type = var_type->GetClangFullType();
|
|
|
|
if (!var_clang_type)
|
|
{
|
|
if (log)
|
|
log->PutCString("Skipped a definition because it has no Clang type");
|
|
return false;
|
|
}
|
|
|
|
ASTContext *ast = var_type->GetClangASTContext().getASTContext();
|
|
|
|
if (!ast)
|
|
{
|
|
if (log)
|
|
log->PutCString("There is no AST context for the current execution context");
|
|
return false;
|
|
}
|
|
//var_clang_type = MaybePromoteToBlockPointerType (ast, var_clang_type);
|
|
|
|
DWARFExpression &var_location_expr = var->LocationExpression();
|
|
|
|
lldb::addr_t loclist_base_load_addr = LLDB_INVALID_ADDRESS;
|
|
|
|
Target *target = m_parser_vars->m_exe_ctx.GetTargetPtr();
|
|
|
|
if (var_location_expr.IsLocationList())
|
|
{
|
|
SymbolContext var_sc;
|
|
var->CalculateSymbolContext (&var_sc);
|
|
loclist_base_load_addr = var_sc.function->GetAddressRange().GetBaseAddress().GetLoadAddress (target);
|
|
}
|
|
Error err;
|
|
|
|
if (var->GetLocationIsConstantValueData())
|
|
{
|
|
DataExtractor const_value_extractor;
|
|
|
|
if (var_location_expr.GetExpressionData(const_value_extractor))
|
|
{
|
|
var_location = Value(const_value_extractor.GetDataStart(), const_value_extractor.GetByteSize());
|
|
var_location.SetValueType(Value::eValueTypeHostAddress);
|
|
}
|
|
else
|
|
{
|
|
if (log)
|
|
log->Printf("Error evaluating constant variable: %s", err.AsCString());
|
|
return false;
|
|
}
|
|
}
|
|
|
|
ClangASTType type_to_use = GuardedCopyType(var_clang_type);
|
|
|
|
if (!type_to_use)
|
|
{
|
|
if (log)
|
|
log->Printf("Couldn't copy a variable's type into the parser's AST context");
|
|
|
|
return false;
|
|
}
|
|
|
|
if (parser_type)
|
|
*parser_type = TypeFromParser(type_to_use);
|
|
|
|
if (var_location.GetContextType() == Value::eContextTypeInvalid)
|
|
var_location.SetClangType(type_to_use);
|
|
|
|
if (var_location.GetValueType() == Value::eValueTypeFileAddress)
|
|
{
|
|
SymbolContext var_sc;
|
|
var->CalculateSymbolContext(&var_sc);
|
|
|
|
if (!var_sc.module_sp)
|
|
return false;
|
|
|
|
Address so_addr(var_location.GetScalar().ULongLong(), var_sc.module_sp->GetSectionList());
|
|
|
|
lldb::addr_t load_addr = so_addr.GetLoadAddress(target);
|
|
|
|
if (load_addr != LLDB_INVALID_ADDRESS)
|
|
{
|
|
var_location.GetScalar() = load_addr;
|
|
var_location.SetValueType(Value::eValueTypeLoadAddress);
|
|
}
|
|
}
|
|
|
|
if (user_type)
|
|
*user_type = TypeFromUser(var_clang_type);
|
|
|
|
return true;
|
|
}
|
|
|
|
void
|
|
ClangExpressionDeclMap::AddOneVariable (NameSearchContext &context, VariableSP var, ValueObjectSP valobj, unsigned int current_id)
|
|
{
|
|
assert (m_parser_vars.get());
|
|
|
|
Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
|
|
|
|
TypeFromUser ut;
|
|
TypeFromParser pt;
|
|
Value var_location;
|
|
|
|
if (!GetVariableValue (var, var_location, &ut, &pt))
|
|
return;
|
|
|
|
clang::QualType parser_opaque_type = QualType::getFromOpaquePtr(pt.GetOpaqueQualType());
|
|
|
|
if (parser_opaque_type.isNull())
|
|
return;
|
|
|
|
if (const clang::Type *parser_type = parser_opaque_type.getTypePtr())
|
|
{
|
|
if (const TagType *tag_type = dyn_cast<TagType>(parser_type))
|
|
CompleteType(tag_type->getDecl());
|
|
}
|
|
|
|
|
|
bool is_reference = pt.IsReferenceType();
|
|
|
|
NamedDecl *var_decl = NULL;
|
|
if (is_reference)
|
|
var_decl = context.AddVarDecl(pt);
|
|
else
|
|
var_decl = context.AddVarDecl(pt.GetLValueReferenceType());
|
|
|
|
std::string decl_name(context.m_decl_name.getAsString());
|
|
ConstString entity_name(decl_name.c_str());
|
|
ClangExpressionVariableSP entity(m_found_entities.CreateVariable (valobj));
|
|
|
|
assert (entity.get());
|
|
entity->EnableParserVars(GetParserID());
|
|
ClangExpressionVariable::ParserVars *parser_vars = entity->GetParserVars(GetParserID());
|
|
parser_vars->m_parser_type = pt;
|
|
parser_vars->m_named_decl = var_decl;
|
|
parser_vars->m_llvm_value = NULL;
|
|
parser_vars->m_lldb_value = var_location;
|
|
parser_vars->m_lldb_var = var;
|
|
|
|
if (is_reference)
|
|
entity->m_flags |= ClangExpressionVariable::EVTypeIsReference;
|
|
|
|
if (log)
|
|
{
|
|
ASTDumper orig_dumper(ut.GetOpaqueQualType());
|
|
ASTDumper ast_dumper(var_decl);
|
|
log->Printf(" CEDM::FEVD[%u] Found variable %s, returned %s (original %s)", current_id, decl_name.c_str(), ast_dumper.GetCString(), orig_dumper.GetCString());
|
|
}
|
|
}
|
|
|
|
void
|
|
ClangExpressionDeclMap::AddOneVariable(NameSearchContext &context,
|
|
ClangExpressionVariableSP &pvar_sp,
|
|
unsigned int current_id)
|
|
{
|
|
Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
|
|
|
|
TypeFromUser user_type (pvar_sp->GetTypeFromUser());
|
|
|
|
TypeFromParser parser_type (GuardedCopyType(user_type));
|
|
|
|
if (!parser_type.GetOpaqueQualType())
|
|
{
|
|
if (log)
|
|
log->Printf(" CEDM::FEVD[%u] Couldn't import type for pvar %s", current_id, pvar_sp->GetName().GetCString());
|
|
return;
|
|
}
|
|
|
|
NamedDecl *var_decl = context.AddVarDecl(parser_type.GetLValueReferenceType());
|
|
|
|
pvar_sp->EnableParserVars(GetParserID());
|
|
ClangExpressionVariable::ParserVars *parser_vars = pvar_sp->GetParserVars(GetParserID());
|
|
parser_vars->m_parser_type = parser_type;
|
|
parser_vars->m_named_decl = var_decl;
|
|
parser_vars->m_llvm_value = NULL;
|
|
parser_vars->m_lldb_value.Clear();
|
|
|
|
if (log)
|
|
{
|
|
ASTDumper ast_dumper(var_decl);
|
|
log->Printf(" CEDM::FEVD[%u] Added pvar %s, returned %s", current_id, pvar_sp->GetName().GetCString(), ast_dumper.GetCString());
|
|
}
|
|
}
|
|
|
|
void
|
|
ClangExpressionDeclMap::AddOneGenericVariable(NameSearchContext &context,
|
|
const Symbol &symbol,
|
|
unsigned int current_id)
|
|
{
|
|
assert(m_parser_vars.get());
|
|
|
|
Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
|
|
|
|
Target *target = m_parser_vars->m_exe_ctx.GetTargetPtr();
|
|
|
|
if (target == NULL)
|
|
return;
|
|
|
|
ASTContext *scratch_ast_context = target->GetScratchClangASTContext()->getASTContext();
|
|
|
|
TypeFromUser user_type (ClangASTContext::GetBasicType(scratch_ast_context, eBasicTypeVoid).GetPointerType().GetLValueReferenceType());
|
|
TypeFromParser parser_type (ClangASTContext::GetBasicType(m_ast_context, eBasicTypeVoid).GetPointerType().GetLValueReferenceType());
|
|
NamedDecl *var_decl = context.AddVarDecl(parser_type);
|
|
|
|
std::string decl_name(context.m_decl_name.getAsString());
|
|
ConstString entity_name(decl_name.c_str());
|
|
ClangExpressionVariableSP entity(m_found_entities.CreateVariable (m_parser_vars->m_exe_ctx.GetBestExecutionContextScope (),
|
|
entity_name,
|
|
user_type,
|
|
m_parser_vars->m_target_info.byte_order,
|
|
m_parser_vars->m_target_info.address_byte_size));
|
|
assert (entity.get());
|
|
|
|
entity->EnableParserVars(GetParserID());
|
|
ClangExpressionVariable::ParserVars *parser_vars = entity->GetParserVars(GetParserID());
|
|
|
|
const Address &symbol_address = symbol.GetAddress();
|
|
lldb::addr_t symbol_load_addr = symbol_address.GetLoadAddress(target);
|
|
|
|
//parser_vars->m_lldb_value.SetContext(Value::eContextTypeClangType, user_type.GetOpaqueQualType());
|
|
parser_vars->m_lldb_value.SetClangType(user_type);
|
|
parser_vars->m_lldb_value.GetScalar() = symbol_load_addr;
|
|
parser_vars->m_lldb_value.SetValueType(Value::eValueTypeLoadAddress);
|
|
|
|
parser_vars->m_parser_type = parser_type;
|
|
parser_vars->m_named_decl = var_decl;
|
|
parser_vars->m_llvm_value = NULL;
|
|
parser_vars->m_lldb_sym = &symbol;
|
|
|
|
if (log)
|
|
{
|
|
ASTDumper ast_dumper(var_decl);
|
|
|
|
log->Printf(" CEDM::FEVD[%u] Found variable %s, returned %s", current_id, decl_name.c_str(), ast_dumper.GetCString());
|
|
}
|
|
}
|
|
|
|
bool
|
|
ClangExpressionDeclMap::ResolveUnknownTypes()
|
|
{
|
|
Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
|
|
Target *target = m_parser_vars->m_exe_ctx.GetTargetPtr();
|
|
|
|
ASTContext *scratch_ast_context = target->GetScratchClangASTContext()->getASTContext();
|
|
|
|
for (size_t index = 0, num_entities = m_found_entities.GetSize();
|
|
index < num_entities;
|
|
++index)
|
|
{
|
|
ClangExpressionVariableSP entity = m_found_entities.GetVariableAtIndex(index);
|
|
|
|
ClangExpressionVariable::ParserVars *parser_vars = entity->GetParserVars(GetParserID());
|
|
|
|
if (entity->m_flags & ClangExpressionVariable::EVUnknownType)
|
|
{
|
|
const NamedDecl *named_decl = parser_vars->m_named_decl;
|
|
const VarDecl *var_decl = dyn_cast<VarDecl>(named_decl);
|
|
|
|
if (!var_decl)
|
|
{
|
|
if (log)
|
|
log->Printf("Entity of unknown type does not have a VarDecl");
|
|
return false;
|
|
}
|
|
|
|
if (log)
|
|
{
|
|
ASTDumper ast_dumper(const_cast<VarDecl*>(var_decl));
|
|
log->Printf("Variable of unknown type now has Decl %s", ast_dumper.GetCString());
|
|
}
|
|
|
|
QualType var_type = var_decl->getType();
|
|
TypeFromParser parser_type(var_type.getAsOpaquePtr(), &var_decl->getASTContext());
|
|
|
|
lldb::clang_type_t copied_type = m_ast_importer->CopyType(scratch_ast_context, &var_decl->getASTContext(), var_type.getAsOpaquePtr());
|
|
|
|
if (!copied_type)
|
|
{
|
|
if (log)
|
|
log->Printf("ClangExpressionDeclMap::ResolveUnknownType - Couldn't import the type for a variable");
|
|
|
|
return (bool) lldb::ClangExpressionVariableSP();
|
|
}
|
|
|
|
TypeFromUser user_type(copied_type, scratch_ast_context);
|
|
|
|
// parser_vars->m_lldb_value.SetContext(Value::eContextTypeClangType, user_type.GetOpaqueQualType());
|
|
parser_vars->m_lldb_value.SetClangType(user_type);
|
|
parser_vars->m_parser_type = parser_type;
|
|
|
|
entity->SetClangType(user_type);
|
|
|
|
entity->m_flags &= ~(ClangExpressionVariable::EVUnknownType);
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
void
|
|
ClangExpressionDeclMap::AddOneRegister (NameSearchContext &context,
|
|
const RegisterInfo *reg_info,
|
|
unsigned int current_id)
|
|
{
|
|
Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
|
|
|
|
ClangASTType clang_type = ClangASTContext::GetBuiltinTypeForEncodingAndBitSize (m_ast_context,
|
|
reg_info->encoding,
|
|
reg_info->byte_size * 8);
|
|
|
|
if (!clang_type)
|
|
{
|
|
if (log)
|
|
log->Printf(" Tried to add a type for %s, but couldn't get one", context.m_decl_name.getAsString().c_str());
|
|
return;
|
|
}
|
|
|
|
TypeFromParser parser_clang_type (clang_type);
|
|
|
|
NamedDecl *var_decl = context.AddVarDecl(parser_clang_type);
|
|
|
|
ClangExpressionVariableSP entity(m_found_entities.CreateVariable (m_parser_vars->m_exe_ctx.GetBestExecutionContextScope(),
|
|
m_parser_vars->m_target_info.byte_order,
|
|
m_parser_vars->m_target_info.address_byte_size));
|
|
assert (entity.get());
|
|
|
|
std::string decl_name(context.m_decl_name.getAsString());
|
|
entity->SetName (ConstString (decl_name.c_str()));
|
|
entity->SetRegisterInfo (reg_info);
|
|
entity->EnableParserVars(GetParserID());
|
|
ClangExpressionVariable::ParserVars *parser_vars = entity->GetParserVars(GetParserID());
|
|
parser_vars->m_parser_type = parser_clang_type;
|
|
parser_vars->m_named_decl = var_decl;
|
|
parser_vars->m_llvm_value = NULL;
|
|
parser_vars->m_lldb_value.Clear();
|
|
entity->m_flags |= ClangExpressionVariable::EVBareRegister;
|
|
|
|
if (log)
|
|
{
|
|
ASTDumper ast_dumper(var_decl);
|
|
log->Printf(" CEDM::FEVD[%d] Added register %s, returned %s", current_id, context.m_decl_name.getAsString().c_str(), ast_dumper.GetCString());
|
|
}
|
|
}
|
|
|
|
void
|
|
ClangExpressionDeclMap::AddOneFunction (NameSearchContext &context,
|
|
Function* function,
|
|
Symbol* symbol,
|
|
unsigned int current_id)
|
|
{
|
|
assert (m_parser_vars.get());
|
|
|
|
Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
|
|
|
|
NamedDecl *function_decl = NULL;
|
|
const Address *fun_address = NULL;
|
|
ClangASTType function_clang_type;
|
|
|
|
bool is_indirect_function = false;
|
|
|
|
if (function)
|
|
{
|
|
Type *function_type = function->GetType();
|
|
|
|
if (!function_type)
|
|
{
|
|
if (log)
|
|
log->PutCString(" Skipped a function because it has no type");
|
|
return;
|
|
}
|
|
|
|
function_clang_type = function_type->GetClangFullType();
|
|
|
|
if (!function_clang_type)
|
|
{
|
|
if (log)
|
|
log->PutCString(" Skipped a function because it has no Clang type");
|
|
return;
|
|
}
|
|
|
|
fun_address = &function->GetAddressRange().GetBaseAddress();
|
|
|
|
ClangASTType copied_function_type = GuardedCopyType(function_clang_type);
|
|
if (copied_function_type)
|
|
{
|
|
function_decl = context.AddFunDecl(copied_function_type);
|
|
|
|
if (!function_decl)
|
|
{
|
|
if (log)
|
|
{
|
|
log->Printf (" Failed to create a function decl for '%s' {0x%8.8" PRIx64 "}",
|
|
function_type->GetName().GetCString(),
|
|
function_type->GetID());
|
|
}
|
|
|
|
return;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
// We failed to copy the type we found
|
|
if (log)
|
|
{
|
|
log->Printf (" Failed to import the function type '%s' {0x%8.8" PRIx64 "} into the expression parser AST contenxt",
|
|
function_type->GetName().GetCString(),
|
|
function_type->GetID());
|
|
}
|
|
|
|
return;
|
|
}
|
|
}
|
|
else if (symbol)
|
|
{
|
|
fun_address = &symbol->GetAddress();
|
|
function_decl = context.AddGenericFunDecl();
|
|
is_indirect_function = symbol->IsIndirect();
|
|
}
|
|
else
|
|
{
|
|
if (log)
|
|
log->PutCString(" AddOneFunction called with no function and no symbol");
|
|
return;
|
|
}
|
|
|
|
Target *target = m_parser_vars->m_exe_ctx.GetTargetPtr();
|
|
|
|
lldb::addr_t load_addr = fun_address->GetCallableLoadAddress(target, is_indirect_function);
|
|
|
|
ClangExpressionVariableSP entity(m_found_entities.CreateVariable (m_parser_vars->m_exe_ctx.GetBestExecutionContextScope (),
|
|
m_parser_vars->m_target_info.byte_order,
|
|
m_parser_vars->m_target_info.address_byte_size));
|
|
assert (entity.get());
|
|
|
|
std::string decl_name(context.m_decl_name.getAsString());
|
|
entity->SetName(ConstString(decl_name.c_str()));
|
|
entity->SetClangType (function_clang_type);
|
|
entity->EnableParserVars(GetParserID());
|
|
|
|
ClangExpressionVariable::ParserVars *parser_vars = entity->GetParserVars(GetParserID());
|
|
|
|
if (load_addr != LLDB_INVALID_ADDRESS)
|
|
{
|
|
parser_vars->m_lldb_value.SetValueType(Value::eValueTypeLoadAddress);
|
|
parser_vars->m_lldb_value.GetScalar() = load_addr;
|
|
}
|
|
else
|
|
{
|
|
// We have to try finding a file address.
|
|
|
|
lldb::addr_t file_addr = fun_address->GetFileAddress();
|
|
|
|
parser_vars->m_lldb_value.SetValueType(Value::eValueTypeFileAddress);
|
|
parser_vars->m_lldb_value.GetScalar() = file_addr;
|
|
}
|
|
|
|
|
|
parser_vars->m_named_decl = function_decl;
|
|
parser_vars->m_llvm_value = NULL;
|
|
|
|
if (log)
|
|
{
|
|
ASTDumper ast_dumper(function_decl);
|
|
|
|
StreamString ss;
|
|
|
|
fun_address->Dump(&ss, m_parser_vars->m_exe_ctx.GetBestExecutionContextScope(), Address::DumpStyleResolvedDescription);
|
|
|
|
log->Printf(" CEDM::FEVD[%u] Found %s function %s (description %s), returned %s",
|
|
current_id,
|
|
(function ? "specific" : "generic"),
|
|
decl_name.c_str(),
|
|
ss.GetData(),
|
|
ast_dumper.GetCString());
|
|
}
|
|
}
|
|
|
|
TypeFromParser
|
|
ClangExpressionDeclMap::CopyClassType(TypeFromUser &ut,
|
|
unsigned int current_id)
|
|
{
|
|
ClangASTType copied_clang_type = GuardedCopyType(ut);
|
|
|
|
if (!copied_clang_type)
|
|
{
|
|
Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
|
|
|
|
if (log)
|
|
log->Printf("ClangExpressionDeclMap::CopyClassType - Couldn't import the type");
|
|
|
|
return TypeFromParser();
|
|
}
|
|
|
|
if (copied_clang_type.IsAggregateType() && copied_clang_type.GetCompleteType ())
|
|
{
|
|
ClangASTType void_clang_type = ClangASTContext::GetBasicType(m_ast_context, eBasicTypeVoid);
|
|
ClangASTType void_ptr_clang_type = void_clang_type.GetPointerType();
|
|
|
|
ClangASTType method_type = ClangASTContext::CreateFunctionType (m_ast_context,
|
|
void_clang_type,
|
|
&void_ptr_clang_type,
|
|
1,
|
|
false,
|
|
copied_clang_type.GetTypeQualifiers());
|
|
|
|
const bool is_virtual = false;
|
|
const bool is_static = false;
|
|
const bool is_inline = false;
|
|
const bool is_explicit = false;
|
|
const bool is_attr_used = true;
|
|
const bool is_artificial = false;
|
|
|
|
copied_clang_type.AddMethodToCXXRecordType ("$__lldb_expr",
|
|
method_type,
|
|
lldb::eAccessPublic,
|
|
is_virtual,
|
|
is_static,
|
|
is_inline,
|
|
is_explicit,
|
|
is_attr_used,
|
|
is_artificial);
|
|
}
|
|
|
|
return TypeFromParser(copied_clang_type);
|
|
}
|
|
|
|
void
|
|
ClangExpressionDeclMap::AddOneType(NameSearchContext &context,
|
|
TypeFromUser &ut,
|
|
unsigned int current_id)
|
|
{
|
|
ClangASTType copied_clang_type = GuardedCopyType(ut);
|
|
|
|
if (!copied_clang_type)
|
|
{
|
|
Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
|
|
|
|
if (log)
|
|
log->Printf("ClangExpressionDeclMap::AddOneType - Couldn't import the type");
|
|
|
|
return;
|
|
}
|
|
|
|
context.AddTypeDecl(copied_clang_type);
|
|
}
|