Chris Lattner | 24943d2 | 2010-06-08 16:52:24 +0000 | [diff] [blame^] | 1 | //===-- ValueObjectRegister.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 | |
| 11 | #include "lldb/Core/ValueObjectRegister.h" |
| 12 | |
| 13 | // C Includes |
| 14 | // C++ Includes |
| 15 | // Other libraries and framework includes |
| 16 | // Project includes |
| 17 | #include "lldb/Core/Module.h" |
| 18 | #include "lldb/Symbol/ClangASTContext.h" |
| 19 | #include "lldb/Symbol/TypeList.h" |
| 20 | #include "lldb/Target/ExecutionContext.h" |
| 21 | #include "lldb/Target/Process.h" |
| 22 | #include "lldb/Target/RegisterContext.h" |
| 23 | #include "lldb/Target/Target.h" |
| 24 | #include "lldb/Target/Thread.h" |
| 25 | |
| 26 | using namespace lldb; |
| 27 | using namespace lldb_private; |
| 28 | |
| 29 | #pragma mark ValueObjectRegisterContext |
| 30 | |
| 31 | ValueObjectRegisterContext::ValueObjectRegisterContext (RegisterContext *reg_ctx) : |
| 32 | ValueObject (), |
| 33 | m_reg_ctx (reg_ctx) |
| 34 | { |
| 35 | assert (reg_ctx); |
| 36 | m_name.SetCString("Registers"); |
| 37 | SetValueIsValid (true); |
| 38 | } |
| 39 | |
| 40 | ValueObjectRegisterContext::~ValueObjectRegisterContext() |
| 41 | { |
| 42 | } |
| 43 | |
| 44 | void * |
| 45 | ValueObjectRegisterContext::GetOpaqueClangQualType () |
| 46 | { |
| 47 | return NULL; |
| 48 | } |
| 49 | |
| 50 | ConstString |
| 51 | ValueObjectRegisterContext::GetTypeName() |
| 52 | { |
| 53 | ConstString empty_type_name; |
| 54 | return empty_type_name; |
| 55 | } |
| 56 | |
| 57 | uint32_t |
| 58 | ValueObjectRegisterContext::CalculateNumChildren() |
| 59 | { |
| 60 | return m_reg_ctx->GetRegisterSetCount(); |
| 61 | } |
| 62 | |
| 63 | clang::ASTContext * |
| 64 | ValueObjectRegisterContext::GetClangAST () |
| 65 | { |
| 66 | return NULL; |
| 67 | } |
| 68 | |
| 69 | size_t |
| 70 | ValueObjectRegisterContext::GetByteSize() |
| 71 | { |
| 72 | return 0; |
| 73 | } |
| 74 | |
| 75 | void |
| 76 | ValueObjectRegisterContext::UpdateValue (ExecutionContextScope *exe_scope) |
| 77 | { |
| 78 | m_error.Clear(); |
| 79 | StackFrame *frame = exe_scope->CalculateStackFrame(); |
| 80 | if (frame) |
| 81 | m_reg_ctx = frame->GetRegisterContext(); |
| 82 | else |
| 83 | m_reg_ctx = NULL; |
| 84 | |
| 85 | SetValueIsValid (m_reg_ctx != NULL); |
| 86 | } |
| 87 | |
| 88 | ValueObjectSP |
| 89 | ValueObjectRegisterContext::CreateChildAtIndex (uint32_t idx, bool synthetic_array_member, int32_t synthetic_index) |
| 90 | { |
| 91 | ValueObjectSP valobj_sp; |
| 92 | |
| 93 | const uint32_t num_children = GetNumChildren(); |
| 94 | if (idx < num_children) |
| 95 | valobj_sp.reset (new ValueObjectRegisterSet(m_reg_ctx, idx)); |
| 96 | return valobj_sp; |
| 97 | } |
| 98 | |
| 99 | |
| 100 | #pragma mark - |
| 101 | #pragma mark ValueObjectRegisterSet |
| 102 | |
| 103 | ValueObjectRegisterSet::ValueObjectRegisterSet (RegisterContext *reg_ctx, uint32_t reg_set_idx) : |
| 104 | ValueObject (), |
| 105 | m_reg_ctx (reg_ctx), |
| 106 | m_reg_set (NULL), |
| 107 | m_reg_set_idx (reg_set_idx) |
| 108 | { |
| 109 | assert (reg_ctx); |
| 110 | m_reg_set = reg_ctx->GetRegisterSet(m_reg_set_idx); |
| 111 | if (m_reg_set) |
| 112 | { |
| 113 | m_name.SetCString (m_reg_set->name); |
| 114 | } |
| 115 | } |
| 116 | |
| 117 | ValueObjectRegisterSet::~ValueObjectRegisterSet() |
| 118 | { |
| 119 | } |
| 120 | |
| 121 | void * |
| 122 | ValueObjectRegisterSet::GetOpaqueClangQualType () |
| 123 | { |
| 124 | return NULL; |
| 125 | } |
| 126 | |
| 127 | ConstString |
| 128 | ValueObjectRegisterSet::GetTypeName() |
| 129 | { |
| 130 | return ConstString(); |
| 131 | } |
| 132 | |
| 133 | uint32_t |
| 134 | ValueObjectRegisterSet::CalculateNumChildren() |
| 135 | { |
| 136 | const RegisterSet *reg_set = m_reg_ctx->GetRegisterSet(m_reg_set_idx); |
| 137 | if (reg_set) |
| 138 | return reg_set->num_registers; |
| 139 | return 0; |
| 140 | } |
| 141 | |
| 142 | clang::ASTContext * |
| 143 | ValueObjectRegisterSet::GetClangAST () |
| 144 | { |
| 145 | return NULL; |
| 146 | } |
| 147 | |
| 148 | size_t |
| 149 | ValueObjectRegisterSet::GetByteSize() |
| 150 | { |
| 151 | return 0; |
| 152 | } |
| 153 | |
| 154 | void |
| 155 | ValueObjectRegisterSet::UpdateValue (ExecutionContextScope *exe_scope) |
| 156 | { |
| 157 | m_error.Clear(); |
| 158 | SetValueDidChange (false); |
| 159 | StackFrame *frame = exe_scope->CalculateStackFrame(); |
| 160 | if (frame == NULL) |
| 161 | m_reg_ctx = NULL; |
| 162 | else |
| 163 | { |
| 164 | m_reg_ctx = frame->GetRegisterContext (); |
| 165 | if (m_reg_ctx) |
| 166 | { |
| 167 | const RegisterSet *reg_set = m_reg_ctx->GetRegisterSet (m_reg_set_idx); |
| 168 | if (reg_set == NULL) |
| 169 | m_reg_ctx = NULL; |
| 170 | else if (m_reg_set != reg_set) |
| 171 | { |
| 172 | SetValueDidChange (true); |
| 173 | m_name.SetCString(reg_set->name); |
| 174 | } |
| 175 | } |
| 176 | } |
| 177 | if (m_reg_ctx) |
| 178 | { |
| 179 | SetValueIsValid (true); |
| 180 | } |
| 181 | else |
| 182 | { |
| 183 | SetValueIsValid (false); |
| 184 | m_children.clear(); |
| 185 | } |
| 186 | } |
| 187 | |
| 188 | |
| 189 | ValueObjectSP |
| 190 | ValueObjectRegisterSet::CreateChildAtIndex (uint32_t idx, bool synthetic_array_member, int32_t synthetic_index) |
| 191 | { |
| 192 | ValueObjectSP valobj_sp; |
| 193 | if (m_reg_ctx && m_reg_set) |
| 194 | { |
| 195 | const uint32_t num_children = GetNumChildren(); |
| 196 | if (idx < num_children) |
| 197 | valobj_sp.reset (new ValueObjectRegister(m_reg_ctx, m_reg_set->registers[idx])); |
| 198 | } |
| 199 | return valobj_sp; |
| 200 | } |
| 201 | |
| 202 | |
| 203 | #pragma mark - |
| 204 | #pragma mark ValueObjectRegister |
| 205 | |
| 206 | ValueObjectRegister::ValueObjectRegister (RegisterContext *reg_ctx, uint32_t reg_num) : |
| 207 | ValueObject (), |
| 208 | m_reg_ctx (reg_ctx), |
| 209 | m_reg_info (NULL), |
| 210 | m_reg_num (reg_num), |
| 211 | m_type_name (), |
| 212 | m_clang_type (NULL) |
| 213 | { |
| 214 | assert (reg_ctx); |
| 215 | m_reg_info = reg_ctx->GetRegisterInfoAtIndex(reg_num); |
| 216 | if (m_reg_info) |
| 217 | { |
| 218 | if (m_reg_info->name) |
| 219 | m_name.SetCString(m_reg_info->name); |
| 220 | else if (m_reg_info->alt_name) |
| 221 | m_name.SetCString(m_reg_info->alt_name); |
| 222 | } |
| 223 | } |
| 224 | |
| 225 | ValueObjectRegister::~ValueObjectRegister() |
| 226 | { |
| 227 | } |
| 228 | |
| 229 | void * |
| 230 | ValueObjectRegister::GetOpaqueClangQualType () |
| 231 | { |
| 232 | if (m_clang_type == NULL && m_reg_info) |
| 233 | { |
| 234 | Process *process = m_reg_ctx->CalculateProcess (); |
| 235 | if (process) |
| 236 | { |
| 237 | Module *exe_module = process->GetTarget().GetExecutableModule ().get(); |
| 238 | if (exe_module) |
| 239 | { |
| 240 | TypeList *type_list = exe_module->GetTypeList(); |
| 241 | if (type_list) |
| 242 | m_clang_type = type_list->GetClangASTContext().GetBuiltinTypeForEncodingAndBitSize (m_reg_info->encoding, m_reg_info->byte_size * 8); |
| 243 | } |
| 244 | } |
| 245 | } |
| 246 | return m_clang_type; |
| 247 | } |
| 248 | |
| 249 | ConstString |
| 250 | ValueObjectRegister::GetTypeName() |
| 251 | { |
| 252 | if (m_type_name.IsEmpty()) |
| 253 | m_type_name = Type::GetClangTypeName (GetOpaqueClangQualType()); |
| 254 | return m_type_name; |
| 255 | } |
| 256 | |
| 257 | uint32_t |
| 258 | ValueObjectRegister::CalculateNumChildren() |
| 259 | { |
| 260 | return 0; |
| 261 | } |
| 262 | |
| 263 | clang::ASTContext * |
| 264 | ValueObjectRegister::GetClangAST () |
| 265 | { |
| 266 | Process *process = m_reg_ctx->CalculateProcess (); |
| 267 | if (process) |
| 268 | { |
| 269 | Module *exe_module = process->GetTarget().GetExecutableModule ().get(); |
| 270 | if (exe_module) |
| 271 | { |
| 272 | TypeList *type_list = exe_module->GetTypeList(); |
| 273 | if (type_list) |
| 274 | return type_list->GetClangASTContext().getASTContext(); |
| 275 | } |
| 276 | } |
| 277 | return NULL; |
| 278 | } |
| 279 | |
| 280 | size_t |
| 281 | ValueObjectRegister::GetByteSize() |
| 282 | { |
| 283 | return m_reg_info->byte_size; |
| 284 | } |
| 285 | |
| 286 | void |
| 287 | ValueObjectRegister::UpdateValue (ExecutionContextScope *exe_scope) |
| 288 | { |
| 289 | m_error.Clear(); |
| 290 | StackFrame *frame = exe_scope->CalculateStackFrame(); |
| 291 | if (frame) |
| 292 | { |
| 293 | m_reg_ctx = frame->GetRegisterContext(); |
| 294 | if (m_reg_ctx) |
| 295 | { |
| 296 | const RegisterInfo *reg_info = m_reg_ctx->GetRegisterInfoAtIndex(m_reg_num); |
| 297 | if (m_reg_info != reg_info) |
| 298 | { |
| 299 | m_reg_info = reg_info; |
| 300 | if (m_reg_info) |
| 301 | { |
| 302 | if (m_reg_info->name) |
| 303 | m_name.SetCString(m_reg_info->name); |
| 304 | else if (m_reg_info->alt_name) |
| 305 | m_name.SetCString(m_reg_info->alt_name); |
| 306 | } |
| 307 | } |
| 308 | } |
| 309 | } |
| 310 | else |
| 311 | { |
| 312 | m_reg_ctx = NULL; |
| 313 | m_reg_info = NULL; |
| 314 | } |
| 315 | |
| 316 | |
| 317 | if (m_reg_ctx && m_reg_info) |
| 318 | { |
| 319 | if (m_reg_ctx->ReadRegisterBytes (m_reg_num, m_data)) |
| 320 | { |
| 321 | m_value.SetContext(Value::eContextTypeDCRegisterInfo, (void *)m_reg_info); |
| 322 | m_value.SetValueType(Value::eValueTypeHostAddress); |
| 323 | m_value.GetScalar() = (uintptr_t)m_data.GetDataStart(); |
| 324 | SetValueIsValid (true); |
| 325 | return; |
| 326 | } |
| 327 | } |
| 328 | SetValueIsValid (false); |
| 329 | } |
| 330 | |
| 331 | |