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ValueObjectVariable.cpp
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1 //===-- ValueObjectVariable.cpp -------------------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 
10 
11 #include "lldb/Core/Address.h"
12 #include "lldb/Core/AddressRange.h"
13 #include "lldb/Core/Declaration.h"
14 #include "lldb/Core/Module.h"
15 #include "lldb/Core/Value.h"
17 #include "lldb/Symbol/Function.h"
18 #include "lldb/Symbol/ObjectFile.h"
21 #include "lldb/Symbol/Type.h"
22 #include "lldb/Symbol/Variable.h"
24 #include "lldb/Target/Process.h"
26 #include "lldb/Target/Target.h"
29 #include "lldb/Utility/Scalar.h"
30 #include "lldb/Utility/Status.h"
32 #include "lldb/lldb-types.h"
33 
34 #include "llvm/ADT/StringRef.h"
35 
36 #include <cassert>
37 #include <memory>
38 
39 namespace lldb_private {
41 }
42 namespace lldb_private {
43 class StackFrame;
44 }
45 namespace lldb_private {
46 struct RegisterInfo;
47 }
48 using namespace lldb_private;
49 
50 lldb::ValueObjectSP
52  const lldb::VariableSP &var_sp) {
53  auto manager_sp = ValueObjectManager::Create();
54  return (new ValueObjectVariable(exe_scope, *manager_sp, var_sp))->GetSP();
55 }
56 
58  ValueObjectManager &manager,
59  const lldb::VariableSP &var_sp)
60  : ValueObject(exe_scope, manager), m_variable_sp(var_sp) {
61  // Do not attempt to construct one of these objects with no variable!
62  assert(m_variable_sp.get() != nullptr);
63  m_name = var_sp->GetName();
64 }
65 
67 
69  Type *var_type = m_variable_sp->GetType();
70  if (var_type)
71  return var_type->GetForwardCompilerType();
72  return CompilerType();
73 }
74 
76  Type *var_type = m_variable_sp->GetType();
77  if (var_type)
78  return var_type->GetName();
79  return ConstString();
80 }
81 
83  Type *var_type = m_variable_sp->GetType();
84  if (var_type)
85  return var_type->GetForwardCompilerType().GetDisplayTypeName();
86  return ConstString();
87 }
88 
90  Type *var_type = m_variable_sp->GetType();
91  if (var_type)
92  return var_type->GetQualifiedName();
93  return ConstString();
94 }
95 
98 
99  if (!type.IsValid())
100  return 0;
101 
103  const bool omit_empty_base_classes = true;
104  auto child_count = type.GetNumChildren(omit_empty_base_classes, &exe_ctx);
105  return child_count <= max ? child_count : max;
106 }
107 
108 llvm::Optional<uint64_t> ValueObjectVariable::GetByteSize() {
110 
112 
113  if (!type.IsValid())
114  return {};
115 
116  return type.GetByteSize(exe_ctx.GetBestExecutionContextScope());
117 }
118 
120  if (m_variable_sp)
121  return m_variable_sp->GetScope();
123 }
124 
126  SetValueIsValid(false);
127  m_error.Clear();
128 
129  Variable *variable = m_variable_sp.get();
130  DWARFExpression &expr = variable->LocationExpression();
131 
132  if (variable->GetLocationIsConstantValueData()) {
133  // expr doesn't contain DWARF bytes, it contains the constant variable
134  // value bytes themselves...
135  if (expr.GetExpressionData(m_data)) {
139  }
140  else
141  m_error.SetErrorString("empty constant data");
142  // constant bytes can't be edited - sorry
144  } else {
145  lldb::addr_t loclist_base_load_addr = LLDB_INVALID_ADDRESS;
147 
148  Target *target = exe_ctx.GetTargetPtr();
149  if (target) {
152  }
153 
154  if (expr.IsLocationList()) {
155  SymbolContext sc;
156  variable->CalculateSymbolContext(&sc);
157  if (sc.function)
158  loclist_base_load_addr =
160  target);
161  }
162  Value old_value(m_value);
163  if (expr.Evaluate(&exe_ctx, nullptr, loclist_base_load_addr, nullptr,
164  nullptr, m_value, &m_error)) {
167 
168  CompilerType compiler_type = GetCompilerType();
169  if (compiler_type.IsValid())
170  m_value.SetCompilerType(compiler_type);
171 
172  Value::ValueType value_type = m_value.GetValueType();
173 
174  // The size of the buffer within m_value can be less than the size
175  // prescribed by its type. E.g. this can happen when an expression only
176  // partially describes an object (say, because it contains DW_OP_piece).
177  //
178  // In this case, grow m_value to the expected size. An alternative way to
179  // handle this is to teach Value::GetValueAsData() and ValueObjectChild
180  // not to read past the end of a host buffer, but this gets impractically
181  // complicated as a Value's host buffer may be shared with a distant
182  // ancestor or sibling in the ValueObject hierarchy.
183  //
184  // FIXME: When we grow m_value, we should represent the added bits as
185  // undefined somehow instead of as 0's.
186  if (value_type == Value::ValueType::HostAddress &&
187  compiler_type.IsValid()) {
188  if (size_t value_buf_size = m_value.GetBuffer().GetByteSize()) {
189  size_t value_size = m_value.GetValueByteSize(&m_error, &exe_ctx);
190  if (m_error.Success() && value_buf_size < value_size)
191  m_value.ResizeData(value_size);
192  }
193  }
194 
195  Process *process = exe_ctx.GetProcessPtr();
196  const bool process_is_alive = process && process->IsAlive();
197 
198  switch (value_type) {
200  m_error.SetErrorString("invalid value");
201  break;
203  // The variable value is in the Scalar value inside the m_value. We can
204  // point our m_data right to it.
205  m_error =
206  m_value.GetValueAsData(&exe_ctx, m_data, GetModule().get());
207  break;
208 
212  // The DWARF expression result was an address in the inferior process.
213  // If this variable is an aggregate type, we just need the address as
214  // the main value as all child variable objects will rely upon this
215  // location and add an offset and then read their own values as needed.
216  // If this variable is a simple type, we read all data for it into
217  // m_data. Make sure this type has a value before we try and read it
218 
219  // If we have a file address, convert it to a load address if we can.
220  if (value_type == Value::ValueType::FileAddress && process_is_alive)
221  m_value.ConvertToLoadAddress(GetModule().get(), target);
222 
223  if (!CanProvideValue()) {
224  // this value object represents an aggregate type whose children have
225  // values, but this object does not. So we say we are changed if our
226  // location has changed.
227  SetValueDidChange(value_type != old_value.GetValueType() ||
228  m_value.GetScalar() != old_value.GetScalar());
229  } else {
230  // Copy the Value and set the context to use our Variable so it can
231  // extract read its value into m_data appropriately
232  Value value(m_value);
233  value.SetContext(Value::ContextType::Variable, variable);
234  m_error =
235  value.GetValueAsData(&exe_ctx, m_data, GetModule().get());
236 
237  SetValueDidChange(value_type != old_value.GetValueType() ||
238  m_value.GetScalar() != old_value.GetScalar());
239  }
240  break;
241  }
242 
244  } else {
245  // could not find location, won't allow editing
247  }
248  }
249 
250  return m_error.Success();
251 }
252 
254  Value::ValueType value_type = valobj.GetValue().GetValueType();
256  Process *process = exe_ctx.GetProcessPtr();
257  const bool process_is_alive = process && process->IsAlive();
258  const uint32_t type_info = valobj.GetCompilerType().GetTypeInfo();
259  const bool is_pointer_or_ref =
260  (type_info & (lldb::eTypeIsPointer | lldb::eTypeIsReference)) != 0;
261 
262  switch (value_type) {
264  break;
266  // If this type is a pointer, then its children will be considered load
267  // addresses if the pointer or reference is dereferenced, but only if
268  // the process is alive.
269  //
270  // There could be global variables like in the following code:
271  // struct LinkedListNode { Foo* foo; LinkedListNode* next; };
272  // Foo g_foo1;
273  // Foo g_foo2;
274  // LinkedListNode g_second_node = { &g_foo2, NULL };
275  // LinkedListNode g_first_node = { &g_foo1, &g_second_node };
276  //
277  // When we aren't running, we should be able to look at these variables
278  // using the "target variable" command. Children of the "g_first_node"
279  // always will be of the same address type as the parent. But children
280  // of the "next" member of LinkedListNode will become load addresses if
281  // we have a live process, or remain a file address if it was a file
282  // address.
283  if (process_is_alive && is_pointer_or_ref)
285  else
287  break;
289  // Same as above for load addresses, except children of pointer or refs
290  // are always load addresses. Host addresses are used to store freeze
291  // dried variables. If this type is a struct, the entire struct
292  // contents will be copied into the heap of the
293  // LLDB process, but we do not currently follow any pointers.
294  if (is_pointer_or_ref)
296  else
298  break;
302  break;
303  }
304 }
305 
306 
307 
309  const ExecutionContextRef &exe_ctx_ref = GetExecutionContextRef();
310  if (exe_ctx_ref.HasFrameRef()) {
311  ExecutionContext exe_ctx(exe_ctx_ref);
312  StackFrame *frame = exe_ctx.GetFramePtr();
313  if (frame) {
314  return m_variable_sp->IsInScope(frame);
315  } else {
316  // This ValueObject had a frame at one time, but now we can't locate it,
317  // so return false since we probably aren't in scope.
318  return false;
319  }
320  }
321  // We have a variable that wasn't tied to a frame, which means it is a global
322  // and is always in scope.
323  return true;
324 }
325 
327  if (m_variable_sp) {
328  SymbolContextScope *sc_scope = m_variable_sp->GetSymbolContextScope();
329  if (sc_scope) {
330  return sc_scope->CalculateSymbolContextModule();
331  }
332  }
333  return lldb::ModuleSP();
334 }
335 
337  if (m_variable_sp)
338  return m_variable_sp->GetSymbolContextScope();
339  return nullptr;
340 }
341 
343  if (m_variable_sp) {
344  decl = m_variable_sp->GetDeclaration();
345  return true;
346  }
347  return false;
348 }
349 
353  else
355 }
356 
357 bool ValueObjectVariable::SetValueFromCString(const char *value_str,
358  Status &error) {
359  if (!UpdateValueIfNeeded()) {
360  error.SetErrorString("unable to update value before writing");
361  return false;
362  }
363 
365  RegisterInfo *reg_info = m_resolved_value.GetRegisterInfo();
367  RegisterContext *reg_ctx = exe_ctx.GetRegisterContext();
368  RegisterValue reg_value;
369  if (!reg_info || !reg_ctx) {
370  error.SetErrorString("unable to retrieve register info");
371  return false;
372  }
373  error = reg_value.SetValueFromString(reg_info, llvm::StringRef(value_str));
374  if (error.Fail())
375  return false;
376  if (reg_ctx->WriteRegister(reg_info, reg_value)) {
377  SetNeedsUpdate();
378  return true;
379  } else {
380  error.SetErrorString("unable to write back to register");
381  return false;
382  }
383  } else
384  return ValueObject::SetValueFromCString(value_str, error);
385 }
386 
388  if (!UpdateValueIfNeeded()) {
389  error.SetErrorString("unable to update value before writing");
390  return false;
391  }
392 
394  RegisterInfo *reg_info = m_resolved_value.GetRegisterInfo();
396  RegisterContext *reg_ctx = exe_ctx.GetRegisterContext();
397  RegisterValue reg_value;
398  if (!reg_info || !reg_ctx) {
399  error.SetErrorString("unable to retrieve register info");
400  return false;
401  }
402  error = reg_value.SetValueFromData(reg_info, data, 0, true);
403  if (error.Fail())
404  return false;
405  if (reg_ctx->WriteRegister(reg_info, reg_value)) {
406  SetNeedsUpdate();
407  return true;
408  } else {
409  error.SetErrorString("unable to write back to register");
410  return false;
411  }
412  } else
413  return ValueObject::SetData(data, error);
414 }
lldb_private::AddressRange::GetBaseAddress
Address & GetBaseAddress()
Get accessor for the base address of the range.
Definition: AddressRange.h:209
lldb_private::RegisterContext::WriteRegister
virtual bool WriteRegister(const RegisterInfo *reg_info, const RegisterValue &reg_value)=0
lldb_private::ExecutionContextRef::HasFrameRef
bool HasFrameRef() const
Returns true if this object has a weak reference to a frame.
Definition: ExecutionContext.h:252
lldb_private::Value::ValueType::Scalar
@ Scalar
A raw scalar value.
lldb_private::ExecutionContext
Definition: ExecutionContext.h:292
lldb_private::ArchSpec::GetByteOrder
lldb::ByteOrder GetByteOrder() const
Returns the byte order for the architecture specification.
Definition: ArchSpec.cpp:730
lldb_private::DataBufferHeap::GetByteSize
lldb::offset_t GetByteSize() const override
Definition: DataBufferHeap.cpp:45
lldb_private::Value::GetBuffer
DataBufferHeap & GetBuffer()
Definition: Value.h:120
Scalar.h
lldb_private::ValueObject::CanProvideValue
virtual bool CanProvideValue()
Definition: ValueObject.cpp:3103
lldb_private::Value::ContextType::Variable
@ Variable
lldb_private::Variable *.
lldb_private::ValueObject::SetValueIsValid
void SetValueIsValid(bool valid)
Definition: ValueObject.h:980
lldb_private::ValueObject::GetValue
const Value & GetValue() const
Definition: ValueObject.h:497
lldb_private::RegisterValue
Definition: RegisterValue.h:28
lldb_private::Function::GetAddressRange
const AddressRange & GetAddressRange()
Definition: Function.h:461
lldb_private::SymbolContextScope::CalculateSymbolContextModule
virtual lldb::ModuleSP CalculateSymbolContextModule()
Definition: SymbolContextScope.h:78
lldb_private::Value
Definition: Value.h:38
lldb_private::ExecutionContext::GetProcessPtr
Process * GetProcessPtr() const
Returns a pointer to the process object.
Definition: ExecutionContext.cpp:208
lldb_private::Value::GetValueAsData
Status GetValueAsData(ExecutionContext *exe_ctx, DataExtractor &data, Module *module)
Definition: Value.cpp:301
lldb_private::Value::ValueType::Invalid
@ Invalid
lldb_private::Value::ValueType::FileAddress
@ FileAddress
A file address value.
lldb_private::Value::GetValueType
ValueType GetValueType() const
Definition: Value.cpp:109
lldb_private::ValueObjectVariable::GetModule
lldb::ModuleSP GetModule() override
Return the module associated with this value object in case the value is from an executable file and ...
Definition: ValueObjectVariable.cpp:326
lldb_private::ValueObjectVariable::GetDisplayTypeName
ConstString GetDisplayTypeName() override
Definition: ValueObjectVariable.cpp:82
lldb_private::ValueObject::m_name
ConstString m_name
The name of this object.
Definition: ValueObject.h:849
lldb_private::ClusterManager
Definition: SharedCluster.h:22
lldb_private::Process
Definition: Process.h:341
Module.h
lldb_private::eAddressTypeHost
@ eAddressTypeHost
Address is an address in the process that is running this code.
Definition: lldb-private-enumerations.h:36
lldb_private::ValueObject::SetValueDidChange
void SetValueDidChange(bool value_changed)
Definition: ValueObject.h:976
lldb_private::ValueObjectVariable::CalculateNumChildren
size_t CalculateNumChildren(uint32_t max) override
Should only be called by ValueObject::GetNumChildren().
Definition: ValueObjectVariable.cpp:96
lldb_private::ValueObjectVariable::GetDeclaration
bool GetDeclaration(Declaration &decl) override
Definition: ValueObjectVariable.cpp:342
lldb_private::ExecutionContext::GetFramePtr
StackFrame * GetFramePtr() const
Returns a pointer to the frame object.
Definition: ExecutionContext.h:408
lldb_private::Value::ValueType::LoadAddress
@ LoadAddress
A load address value.
lldb_private::ValueObjectVariable::GetTypeName
ConstString GetTypeName() override
Definition: ValueObjectVariable.cpp:75
lldb_private::CompilerType::GetByteSize
llvm::Optional< uint64_t > GetByteSize(ExecutionContextScope *exe_scope) const
Return the size of the type in bytes.
Definition: CompilerType.cpp:489
RegisterValue.h
lldb_private::Process::IsAlive
virtual bool IsAlive()
Check if a process is still alive.
Definition: Process.cpp:1085
lldb_private::ValueObjectVariable::GetValueType
lldb::ValueType GetValueType() const override
Definition: ValueObjectVariable.cpp:119
lldb_private::Type::GetName
ConstString GetName()
Definition: Type.cpp:301
lldb::addr_t
uint64_t addr_t
Definition: lldb-types.h:83
lldb-private-enumerations.h
lldb_private::SymbolContext
Definition: SymbolContext.h:33
lldb_private::Target
Definition: Target.h:451
Process.h
lldb_private::Value::ContextType::Invalid
@ Invalid
Undefined.
lldb_private::Value::GetRegisterInfo
RegisterInfo * GetRegisterInfo() const
Definition: Value.cpp:126
lldb_private::Value::SetCompilerType
void SetCompilerType(const CompilerType &compiler_type)
Definition: Value.cpp:254
lldb_private::ValueObject::m_data
DataExtractor m_data
A data extractor that can be used to extract the value.
Definition: ValueObject.h:851
Target.h
lldb_private::DataExtractor::SetByteOrder
void SetByteOrder(lldb::ByteOrder byte_order)
Set the byte_order value.
Definition: DataExtractor.h:931
lldb_private::Value::GetScalar
const Scalar & GetScalar() const
Definition: Value.h:112
error
static llvm::raw_ostream & error(Stream &strm)
Definition: CommandReturnObject.cpp:17
lldb_private::Status::Success
bool Success() const
Test for success condition.
Definition: Status.cpp:288
lldb_private::ExecutionContext::GetRegisterContext
RegisterContext * GetRegisterContext() const
Definition: ExecutionContext.cpp:192
lldb_private::CompilerType::GetDisplayTypeName
ConstString GetDisplayTypeName() const
Definition: CompilerType.cpp:284
lldb_private::DataExtractor
Definition: DataExtractor.h:48
lldb_private::Value::ConvertToLoadAddress
void ConvertToLoadAddress(Module *module, Target *target)
Convert this value's file address to a load address, if possible.
Definition: Value.cpp:649
lldb_private::ExecutionContextScope
Definition: ExecutionContextScope.h:32
lldb_private::ValueObject::SetAddressTypeOfChildren
void SetAddressTypeOfChildren(AddressType at)
Definition: ValueObject.h:759
Declaration.h
lldb_private::SymbolContext::function
Function * function
The Function for a given query.
Definition: SymbolContext.h:320
lldb_private::DataExtractor::SetAddressByteSize
void SetAddressByteSize(uint32_t addr_size)
Set the address byte size.
Definition: DataExtractor.h:845
lldb_private::ValueObjectVariable::GetCompilerTypeImpl
CompilerType GetCompilerTypeImpl() override
Definition: ValueObjectVariable.cpp:68
Type.h
lldb_private::DWARFExpression
Definition: DWARFExpression.h:35
lldb_private::DataExtractor::GetDataStart
const uint8_t * GetDataStart() const
Get the data start pointer.
Definition: DataExtractor.h:422
lldb_private::ValueObjectVariable::~ValueObjectVariable
~ValueObjectVariable() override
SymbolContextScope.h
lldb_private::ValueObjectVariable::ValueObjectVariable
ValueObjectVariable(ExecutionContextScope *exe_scope, ValueObjectManager &manager, const lldb::VariableSP &var_sp)
Definition: ValueObjectVariable.cpp:57
lldb_private::ConstString
Definition: ConstString.h:40
lldb_private::ValueObject::UpdateValueIfNeeded
bool UpdateValueIfNeeded(bool update_format=true)
Definition: ValueObject.cpp:111
lldb_private::ValueObjectVariable::m_variable_sp
lldb::VariableSP m_variable_sp
The variable that this value object is based upon.
Definition: ValueObjectVariable.h:76
lldb_private::Value::ValueType
ValueType
Type that describes Value::m_value.
Definition: Value.h:41
lldb_private::ValueObject::GetExecutionContextRef
const ExecutionContextRef & GetExecutionContextRef() const
Definition: ValueObject.h:330
lldb_private::eAddressTypeLoad
@ eAddressTypeLoad
Address is an address as in the current target inferior process.
Definition: lldb-private-enumerations.h:34
lldb_private::ValueObjectVariable::GetQualifiedTypeName
ConstString GetQualifiedTypeName() override
Definition: ValueObjectVariable.cpp:89
lldb_private::DWARFExpression::IsLocationList
bool IsLocationList() const
Return true if a location list was provided.
Definition: DWARFExpression.cpp:105
Address.h
lldb_private::RegisterContext
Definition: RegisterContext.h:17
lldb_private::CompilerType::IsValid
bool IsValid() const
Definition: CompilerType.h:72
lldb_private::DWARFExpression::GetExpressionData
bool GetExpressionData(DataExtractor &data) const
Definition: DWARFExpression.h:211
lldb_private::ArchSpec::GetAddressByteSize
uint32_t GetAddressByteSize() const
Returns the size in bytes of an address of the current architecture.
Definition: ArchSpec.cpp:683
lldb_private::SymbolContextScope
Definition: SymbolContextScope.h:64
ObjectFile.h
lldb_private::CompilerType::GetNumChildren
uint32_t GetNumChildren(bool omit_empty_base_classes, const ExecutionContext *exe_ctx) const
Definition: CompilerType.cpp:515
lldb_private::ValueObject::SetValueFromCString
virtual bool SetValueFromCString(const char *value_str, Status &error)
Definition: ValueObject.cpp:1465
lldb-types.h
lldb_private::ValueObjectVariable::m_resolved_value
Value m_resolved_value
Definition: ValueObjectVariable.h:79
lldb_private::RegisterValue::SetValueFromData
Status SetValueFromData(const RegisterInfo *reg_info, DataExtractor &data, lldb::offset_t offset, bool partial_data_ok)
Definition: RegisterValue.cpp:172
lldb_private::Target::GetArchitecture
const ArchSpec & GetArchitecture() const
Definition: Target.h:967
lldb_private::Status
Definition: Status.h:44
lldb_private::ValueObject
ValueObject:
Definition: ValueObject.h:105
lldb::ValueType
ValueType
Definition: lldb-enumerations.h:315
lldb_private::Type::GetQualifiedName
ConstString GetQualifiedName()
Definition: Type.cpp:661
uint32_t
lldb_private::ExecutionContext::GetBestExecutionContextScope
ExecutionContextScope * GetBestExecutionContextScope() const
Definition: ExecutionContext.cpp:216
lldb_private::ValueObject::m_value
Value m_value
Definition: ValueObject.h:852
lldb_private::Value::ValueType::HostAddress
@ HostAddress
A host address value (for memory in the process that < A is using liblldb).
lldb_private::ValueObjectVariable::SetValueFromCString
bool SetValueFromCString(const char *value_str, Status &error) override
Definition: ValueObjectVariable.cpp:357
lldb_private::eAddressTypeFile
@ eAddressTypeFile
Address is an address as found in an object or symbol file.
Definition: lldb-private-enumerations.h:32
lldb_private::Type
Definition: Type.h:66
lldb_private::CompilerType::GetTypeInfo
uint32_t GetTypeInfo(CompilerType *pointee_or_element_compiler_type=nullptr) const
Definition: CompilerType.cpp:290
lldb_private::Status::SetErrorString
void SetErrorString(llvm::StringRef err_str)
Set the current error string to err_str.
Definition: Status.cpp:242
lldb_private::Address::GetLoadAddress
lldb::addr_t GetLoadAddress(Target *target) const
Get the load address.
Definition: Address.cpp:310
lldb_private::Type::GetForwardCompilerType
CompilerType GetForwardCompilerType()
Definition: Type.cpp:656
lldb_private::Value::GetContextType
ContextType GetContextType() const
Definition: Value.h:87
lldb_private::ValueObject::GetCompilerType
CompilerType GetCompilerType()
Definition: ValueObject.h:352
lldb_private::Variable::CalculateSymbolContext
void CalculateSymbolContext(SymbolContext *sc)
Definition: Variable.cpp:216
lldb_private::ValueObjectVariable::SetData
bool SetData(DataExtractor &data, Status &error) override
Definition: ValueObjectVariable.cpp:387
LLDB_INVALID_ADDRESS
#define LLDB_INVALID_ADDRESS
Definition: lldb-defines.h:86
lldb_private::Variable::LocationExpression
DWARFExpression & LocationExpression()
Definition: Variable.h:76
DataExtractor.h
lldb_private::CompilerType
Generic representation of a type in a programming language.
Definition: CompilerType.h:33
Function.h
lldb_private::ValueObject::GetLocationAsCString
virtual const char * GetLocationAsCString()
Definition: ValueObject.h:508
DWARFExpression.h
lldb_private::Value::ContextType::RegisterInfo
@ RegisterInfo
RegisterInfo * (can be a scalar or a vector register).
lldb_private::ValueObjectVariable::DoUpdateChildrenAddressType
void DoUpdateChildrenAddressType(ValueObject &valobj) override
Definition: ValueObjectVariable.cpp:253
Status.h
SymbolContext.h
lldb_private::ValueObject::SetData
virtual bool SetData(DataExtractor &data, Status &error)
Definition: ValueObject.cpp:783
lldb_private::ValueObjectVariable::GetSymbolContextScope
SymbolContextScope * GetSymbolContextScope() override
Definition: ValueObjectVariable.cpp:336
lldb_private::Value::SetBytes
void SetBytes(const void *bytes, int len)
Definition: Value.cpp:90
lldb_private
A class that represents a running process on the host machine.
Definition: SBCommandInterpreterRunOptions.h:16
lldb::eValueTypeInvalid
@ eValueTypeInvalid
Definition: lldb-enumerations.h:316
lldb_private::Value::SetContext
void SetContext(ContextType context_type, void *p)
Definition: Value.h:96
lldb_private::Value::ResizeData
size_t ResizeData(size_t len)
Definition: Value.cpp:176
lldb_private::Variable::GetLocationIsConstantValueData
bool GetLocationIsConstantValueData() const
Definition: Variable.h:92
lldb_private::ValueObjectVariable::IsInScope
bool IsInScope() override
Definition: ValueObjectVariable.cpp:308
lldb_private::Status::Clear
void Clear()
Clear the object state.
Definition: Status.cpp:168
lldb_private::ValueObjectVariable::GetByteSize
llvm::Optional< uint64_t > GetByteSize() override
Definition: ValueObjectVariable.cpp:108
ValueObjectVariable.h
lldb_private::Value::GetValueByteSize
uint64_t GetValueByteSize(Status *error_ptr, ExecutionContext *exe_ctx)
Definition: Value.cpp:197
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Definition: Variable.h:25
lldb_private::DWARFExpression::Evaluate
bool Evaluate(ExecutionContextScope *exe_scope, lldb::addr_t func_load_addr, const Value *initial_value_ptr, const Value *object_address_ptr, Value &result, Status *error_ptr) const
Wrapper for the static evaluate function that accepts an ExecutionContextScope instead of an Executio...
Definition: DWARFExpression.cpp:847
lldb_private::ValueObject::m_error
Status m_error
An error object that can describe any errors that occur when updating values.
Definition: ValueObject.h:855
lldb_private::ValueObjectVariable::Create
static lldb::ValueObjectSP Create(ExecutionContextScope *exe_scope, const lldb::VariableSP &var_sp)
Definition: ValueObjectVariable.cpp:51
lldb_private::ValueObject::GetLocationAsCStringImpl
const char * GetLocationAsCStringImpl(const Value &value, const DataExtractor &data)
Definition: ValueObject.cpp:288
Variable.h
lldb_private::Declaration
Definition: Declaration.h:24
lldb_private::DataExtractor::GetByteSize
uint64_t GetByteSize() const
Get the number of bytes contained in this object.
Definition: DataExtractor.h:270
lldb_private::StackFrame
Definition: StackFrame.h:40
AddressRange.h
lldb_private::ValueObjectVariable::UpdateValue
bool UpdateValue() override
Definition: ValueObjectVariable.cpp:125
RegisterContext.h
lldb_private::RegisterValue::SetValueFromString
Status SetValueFromString(const RegisterInfo *reg_info, llvm::StringRef value_str)
Definition: RegisterValue.cpp:335
Value.h
lldb_private::ExecutionContextRef
Execution context objects refer to objects in the execution of the program that is being debugged.
Definition: ExecutionContext.h:72
lldb_private::ExecutionContext::GetTargetPtr
Target * GetTargetPtr() const
Returns a pointer to the target object.
Definition: ExecutionContext.cpp:200
ExecutionContext.h
lldb_private::ClusterManager::Create
static std::shared_ptr< ClusterManager > Create()
Definition: SharedCluster.h:24
lldb_private::ValueObjectVariable::GetLocationAsCString
const char * GetLocationAsCString() override
Definition: ValueObjectVariable.cpp:350
lldb_private::ValueObject::SetNeedsUpdate
void SetNeedsUpdate()
Definition: ValueObject.cpp:229