Chris Lattner | 24943d2 | 2010-06-08 16:52:24 +0000 | [diff] [blame] | 1 | //===-- ValueObjectChild.cpp ------------------------------------*- C++ -*-===// |
| 2 | // |
| 3 | // The LLVM Compiler Infrastructure |
| 4 | // |
| 5 | // This file is distributed under the University of Illinois Open Source |
| 6 | // License. See LICENSE.TXT for details. |
| 7 | // |
| 8 | //===----------------------------------------------------------------------===// |
| 9 | |
| 10 | #include "lldb/Core/ValueObjectChild.h" |
| 11 | |
Chris Lattner | 24943d2 | 2010-06-08 16:52:24 +0000 | [diff] [blame] | 12 | #include "lldb/Core/Module.h" |
| 13 | #include "lldb/Core/ValueObjectList.h" |
| 14 | |
Greg Clayton | 1674b12 | 2010-07-21 22:12:05 +0000 | [diff] [blame] | 15 | #include "lldb/Symbol/ClangASTType.h" |
Chris Lattner | 24943d2 | 2010-06-08 16:52:24 +0000 | [diff] [blame] | 16 | #include "lldb/Symbol/ObjectFile.h" |
| 17 | #include "lldb/Symbol/SymbolContext.h" |
| 18 | #include "lldb/Symbol/Type.h" |
| 19 | #include "lldb/Symbol/Variable.h" |
| 20 | |
| 21 | #include "lldb/Target/ExecutionContext.h" |
| 22 | #include "lldb/Target/Process.h" |
| 23 | #include "lldb/Target/Target.h" |
| 24 | |
| 25 | using namespace lldb_private; |
| 26 | |
| 27 | ValueObjectChild::ValueObjectChild |
| 28 | ( |
Jim Ingham | fa3a16a | 2011-03-31 00:19:25 +0000 | [diff] [blame] | 29 | ValueObject &parent, |
Chris Lattner | 24943d2 | 2010-06-08 16:52:24 +0000 | [diff] [blame] | 30 | clang::ASTContext *clang_ast, |
| 31 | void *clang_type, |
| 32 | const ConstString &name, |
| 33 | uint32_t byte_size, |
| 34 | int32_t byte_offset, |
| 35 | uint32_t bitfield_bit_size, |
Greg Clayton | bf8e42b | 2010-10-14 22:52:14 +0000 | [diff] [blame] | 36 | uint32_t bitfield_bit_offset, |
Greg Clayton | 00c3ae7 | 2011-01-21 01:59:00 +0000 | [diff] [blame] | 37 | bool is_base_class, |
Enrico Granata | 9154480 | 2011-09-06 19:20:51 +0000 | [diff] [blame] | 38 | bool is_deref_of_parent, |
| 39 | AddressType child_ptr_or_ref_addr_type |
Chris Lattner | 24943d2 | 2010-06-08 16:52:24 +0000 | [diff] [blame] | 40 | ) : |
Greg Clayton | bf8e42b | 2010-10-14 22:52:14 +0000 | [diff] [blame] | 41 | ValueObject (parent), |
Chris Lattner | 24943d2 | 2010-06-08 16:52:24 +0000 | [diff] [blame] | 42 | m_clang_ast (clang_ast), |
| 43 | m_clang_type (clang_type), |
| 44 | m_byte_size (byte_size), |
| 45 | m_byte_offset (byte_offset), |
| 46 | m_bitfield_bit_size (bitfield_bit_size), |
Greg Clayton | bf8e42b | 2010-10-14 22:52:14 +0000 | [diff] [blame] | 47 | m_bitfield_bit_offset (bitfield_bit_offset), |
Greg Clayton | 00c3ae7 | 2011-01-21 01:59:00 +0000 | [diff] [blame] | 48 | m_is_base_class (is_base_class), |
| 49 | m_is_deref_of_parent (is_deref_of_parent) |
Chris Lattner | 24943d2 | 2010-06-08 16:52:24 +0000 | [diff] [blame] | 50 | { |
| 51 | m_name = name; |
Enrico Granata | 9154480 | 2011-09-06 19:20:51 +0000 | [diff] [blame] | 52 | SetAddressTypeOfChildren(child_ptr_or_ref_addr_type); |
Chris Lattner | 24943d2 | 2010-06-08 16:52:24 +0000 | [diff] [blame] | 53 | } |
| 54 | |
| 55 | ValueObjectChild::~ValueObjectChild() |
| 56 | { |
| 57 | } |
| 58 | |
Chris Lattner | 24943d2 | 2010-06-08 16:52:24 +0000 | [diff] [blame] | 59 | lldb::ValueType |
| 60 | ValueObjectChild::GetValueType() const |
| 61 | { |
| 62 | return m_parent->GetValueType(); |
| 63 | } |
| 64 | |
| 65 | uint32_t |
| 66 | ValueObjectChild::CalculateNumChildren() |
| 67 | { |
Sean Callanan | 931acec | 2012-02-22 23:57:45 +0000 | [diff] [blame] | 68 | return ClangASTContext::GetNumChildren (GetClangAST (), GetClangType(), true); |
Chris Lattner | 24943d2 | 2010-06-08 16:52:24 +0000 | [diff] [blame] | 69 | } |
| 70 | |
Chris Lattner | 24943d2 | 2010-06-08 16:52:24 +0000 | [diff] [blame] | 71 | ConstString |
| 72 | ValueObjectChild::GetTypeName() |
| 73 | { |
| 74 | if (m_type_name.IsEmpty()) |
| 75 | { |
Greg Clayton | dc0a38c | 2012-03-26 23:03:23 +0000 | [diff] [blame] | 76 | m_type_name = ClangASTType::GetConstTypeName (GetClangAST(), GetClangType()); |
Chris Lattner | 24943d2 | 2010-06-08 16:52:24 +0000 | [diff] [blame] | 77 | if (m_type_name) |
| 78 | { |
| 79 | if (m_bitfield_bit_size > 0) |
| 80 | { |
| 81 | const char *clang_type_name = m_type_name.AsCString(); |
| 82 | if (clang_type_name) |
| 83 | { |
Greg Clayton | 54e7afa | 2010-07-09 20:39:50 +0000 | [diff] [blame] | 84 | std::vector<char> bitfield_type_name (strlen(clang_type_name) + 32, 0); |
Greg Clayton | 53d68e7 | 2010-07-20 22:52:08 +0000 | [diff] [blame] | 85 | ::snprintf (&bitfield_type_name.front(), bitfield_type_name.size(), "%s:%u", clang_type_name, m_bitfield_bit_size); |
| 86 | m_type_name.SetCString(&bitfield_type_name.front()); |
Chris Lattner | 24943d2 | 2010-06-08 16:52:24 +0000 | [diff] [blame] | 87 | } |
| 88 | } |
| 89 | } |
| 90 | } |
| 91 | return m_type_name; |
| 92 | } |
| 93 | |
Greg Clayton | dc0a38c | 2012-03-26 23:03:23 +0000 | [diff] [blame] | 94 | ConstString |
| 95 | ValueObjectChild::GetQualifiedTypeName() |
| 96 | { |
| 97 | ConstString qualified_name = ClangASTType::GetConstQualifiedTypeName (GetClangAST(), GetClangType()); |
| 98 | if (qualified_name) |
| 99 | { |
| 100 | if (m_bitfield_bit_size > 0) |
| 101 | { |
| 102 | const char *clang_type_name = qualified_name.AsCString(); |
| 103 | if (clang_type_name) |
| 104 | { |
| 105 | std::vector<char> bitfield_type_name (strlen(clang_type_name) + 32, 0); |
| 106 | ::snprintf (&bitfield_type_name.front(), bitfield_type_name.size(), "%s:%u", clang_type_name, m_bitfield_bit_size); |
| 107 | qualified_name.SetCString(&bitfield_type_name.front()); |
| 108 | } |
| 109 | } |
| 110 | } |
| 111 | return qualified_name; |
| 112 | } |
| 113 | |
Jim Ingham | fa3a16a | 2011-03-31 00:19:25 +0000 | [diff] [blame] | 114 | bool |
| 115 | ValueObjectChild::UpdateValue () |
Chris Lattner | 24943d2 | 2010-06-08 16:52:24 +0000 | [diff] [blame] | 116 | { |
| 117 | m_error.Clear(); |
| 118 | SetValueIsValid (false); |
| 119 | ValueObject* parent = m_parent; |
| 120 | if (parent) |
| 121 | { |
Enrico Granata | afb7c85 | 2011-08-02 17:27:39 +0000 | [diff] [blame] | 122 | if (parent->UpdateValueIfNeeded(false)) |
Chris Lattner | 24943d2 | 2010-06-08 16:52:24 +0000 | [diff] [blame] | 123 | { |
Sean Callanan | 931acec | 2012-02-22 23:57:45 +0000 | [diff] [blame] | 124 | m_value.SetContext(Value::eContextTypeClangType, GetClangType()); |
Chris Lattner | 24943d2 | 2010-06-08 16:52:24 +0000 | [diff] [blame] | 125 | |
| 126 | // Copy the parent scalar value and the scalar value type |
| 127 | m_value.GetScalar() = parent->GetValue().GetScalar(); |
| 128 | Value::ValueType value_type = parent->GetValue().GetValueType(); |
| 129 | m_value.SetValueType (value_type); |
| 130 | |
Greg Clayton | 462d414 | 2010-09-29 01:12:09 +0000 | [diff] [blame] | 131 | if (ClangASTContext::IsPointerOrReferenceType (parent->GetClangType())) |
Chris Lattner | 24943d2 | 2010-06-08 16:52:24 +0000 | [diff] [blame] | 132 | { |
Enrico Granata | 9154480 | 2011-09-06 19:20:51 +0000 | [diff] [blame] | 133 | lldb::addr_t addr = parent->GetPointerValue (); |
Greg Clayton | b2fbdad | 2011-08-16 00:44:29 +0000 | [diff] [blame] | 134 | m_value.GetScalar() = addr; |
Greg Clayton | a564ec6 | 2010-11-02 01:50:16 +0000 | [diff] [blame] | 135 | |
| 136 | if (addr == LLDB_INVALID_ADDRESS) |
| 137 | { |
| 138 | m_error.SetErrorString ("parent address is invalid."); |
| 139 | } |
| 140 | else if (addr == 0) |
| 141 | { |
| 142 | m_error.SetErrorString ("parent is NULL"); |
| 143 | } |
| 144 | else |
| 145 | { |
Greg Clayton | 2e81020 | 2010-11-02 21:21:20 +0000 | [diff] [blame] | 146 | m_value.GetScalar() += m_byte_offset; |
Enrico Granata | 9154480 | 2011-09-06 19:20:51 +0000 | [diff] [blame] | 147 | AddressType addr_type = parent->GetAddressTypeOfChildren(); |
| 148 | |
| 149 | switch (addr_type) |
| 150 | { |
| 151 | case eAddressTypeFile: |
Greg Clayton | b4d7fc0 | 2012-02-17 07:49:44 +0000 | [diff] [blame] | 152 | { |
| 153 | lldb::ProcessSP process_sp (GetProcessSP()); |
| 154 | if (process_sp && process_sp->IsAlive() == true) |
| 155 | m_value.SetValueType (Value::eValueTypeLoadAddress); |
| 156 | else |
| 157 | m_value.SetValueType(Value::eValueTypeFileAddress); |
| 158 | } |
Enrico Granata | 9154480 | 2011-09-06 19:20:51 +0000 | [diff] [blame] | 159 | break; |
| 160 | case eAddressTypeLoad: |
| 161 | m_value.SetValueType (Value::eValueTypeLoadAddress); |
| 162 | break; |
| 163 | case eAddressTypeHost: |
| 164 | m_value.SetValueType(Value::eValueTypeHostAddress); |
| 165 | break; |
| 166 | case eAddressTypeInvalid: |
Enrico Granata | 9154480 | 2011-09-06 19:20:51 +0000 | [diff] [blame] | 167 | // TODO: does this make sense? |
| 168 | m_value.SetValueType(Value::eValueTypeScalar); |
| 169 | break; |
| 170 | } |
Greg Clayton | a564ec6 | 2010-11-02 01:50:16 +0000 | [diff] [blame] | 171 | } |
Chris Lattner | 24943d2 | 2010-06-08 16:52:24 +0000 | [diff] [blame] | 172 | } |
| 173 | else |
| 174 | { |
| 175 | switch (value_type) |
| 176 | { |
| 177 | case Value::eValueTypeLoadAddress: |
| 178 | case Value::eValueTypeFileAddress: |
| 179 | case Value::eValueTypeHostAddress: |
| 180 | { |
| 181 | lldb::addr_t addr = m_value.GetScalar().ULongLong(LLDB_INVALID_ADDRESS); |
Greg Clayton | a564ec6 | 2010-11-02 01:50:16 +0000 | [diff] [blame] | 182 | if (addr == LLDB_INVALID_ADDRESS) |
Chris Lattner | 24943d2 | 2010-06-08 16:52:24 +0000 | [diff] [blame] | 183 | { |
Greg Clayton | a564ec6 | 2010-11-02 01:50:16 +0000 | [diff] [blame] | 184 | m_error.SetErrorString ("parent address is invalid."); |
Chris Lattner | 24943d2 | 2010-06-08 16:52:24 +0000 | [diff] [blame] | 185 | } |
Greg Clayton | a564ec6 | 2010-11-02 01:50:16 +0000 | [diff] [blame] | 186 | else if (addr == 0) |
| 187 | { |
| 188 | m_error.SetErrorString ("parent is NULL"); |
| 189 | } |
| 190 | else |
| 191 | { |
| 192 | // Set this object's scalar value to the address of its |
Jim Ingham | 574c3d6 | 2011-08-12 23:34:31 +0000 | [diff] [blame] | 193 | // value by adding its byte offset to the parent address |
Greg Clayton | a564ec6 | 2010-11-02 01:50:16 +0000 | [diff] [blame] | 194 | m_value.GetScalar() += GetByteOffset(); |
| 195 | } |
Chris Lattner | 24943d2 | 2010-06-08 16:52:24 +0000 | [diff] [blame] | 196 | } |
| 197 | break; |
| 198 | |
| 199 | case Value::eValueTypeScalar: |
| 200 | // TODO: What if this is a register value? Do we try and |
| 201 | // extract the child value from within the parent data? |
| 202 | // Probably... |
| 203 | default: |
Greg Clayton | 9c23673 | 2011-10-26 00:56:27 +0000 | [diff] [blame] | 204 | m_error.SetErrorString ("parent has invalid value."); |
Chris Lattner | 24943d2 | 2010-06-08 16:52:24 +0000 | [diff] [blame] | 205 | break; |
| 206 | } |
| 207 | } |
| 208 | |
| 209 | if (m_error.Success()) |
| 210 | { |
Greg Clayton | b4d7fc0 | 2012-02-17 07:49:44 +0000 | [diff] [blame] | 211 | ExecutionContext exe_ctx (GetExecutionContextRef().Lock()); |
Greg Clayton | 3508c38 | 2012-02-24 01:59:29 +0000 | [diff] [blame] | 212 | m_error = m_value.GetValueAsData (&exe_ctx, GetClangAST (), m_data, 0, GetModule().get()); |
Chris Lattner | 24943d2 | 2010-06-08 16:52:24 +0000 | [diff] [blame] | 213 | } |
| 214 | } |
| 215 | else |
| 216 | { |
Greg Clayton | 9c23673 | 2011-10-26 00:56:27 +0000 | [diff] [blame] | 217 | m_error.SetErrorStringWithFormat("parent failed to evaluate: %s", parent->GetError().AsCString()); |
Chris Lattner | 24943d2 | 2010-06-08 16:52:24 +0000 | [diff] [blame] | 218 | } |
| 219 | } |
| 220 | else |
| 221 | { |
| 222 | m_error.SetErrorString("ValueObjectChild has a NULL parent ValueObject."); |
| 223 | } |
Jim Ingham | fa3a16a | 2011-03-31 00:19:25 +0000 | [diff] [blame] | 224 | |
| 225 | return m_error.Success(); |
Chris Lattner | 24943d2 | 2010-06-08 16:52:24 +0000 | [diff] [blame] | 226 | } |
| 227 | |
| 228 | |
| 229 | bool |
Jim Ingham | fa3a16a | 2011-03-31 00:19:25 +0000 | [diff] [blame] | 230 | ValueObjectChild::IsInScope () |
Chris Lattner | 24943d2 | 2010-06-08 16:52:24 +0000 | [diff] [blame] | 231 | { |
Jim Ingham | fa3a16a | 2011-03-31 00:19:25 +0000 | [diff] [blame] | 232 | return m_parent->IsInScope (); |
Chris Lattner | 24943d2 | 2010-06-08 16:52:24 +0000 | [diff] [blame] | 233 | } |