LLDB  mainline
FunctionCaller.cpp
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1 //===-- FunctionCaller.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 
9 
11 #include "lldb/Core/Module.h"
12 #include "lldb/Core/ValueObject.h"
17 #include "lldb/Symbol/Function.h"
18 #include "lldb/Symbol/Type.h"
20 #include "lldb/Target/Process.h"
22 #include "lldb/Target/Target.h"
23 #include "lldb/Target/Thread.h"
24 #include "lldb/Target/ThreadPlan.h"
27 #include "lldb/Utility/LLDBLog.h"
28 #include "lldb/Utility/Log.h"
29 #include "lldb/Utility/State.h"
30 
31 using namespace lldb_private;
32 
34 
35 // FunctionCaller constructor
37  const CompilerType &return_type,
38  const Address &functionAddress,
39  const ValueList &arg_value_list,
40  const char *name)
41  : Expression(exe_scope), m_execution_unit_sp(), m_parser(),
42  m_jit_module_wp(), m_name(name ? name : "<unknown>"),
43  m_function_ptr(nullptr), m_function_addr(functionAddress),
44  m_function_return_type(return_type),
45  m_wrapper_function_name("__lldb_caller_function"),
46  m_wrapper_struct_name("__lldb_caller_struct"), m_wrapper_args_addrs(),
47  m_struct_valid(false), m_struct_size(0), m_return_size(0),
48  m_return_offset(0), m_arg_values(arg_value_list), m_compiled(false),
49  m_JITted(false) {
50  m_jit_process_wp = lldb::ProcessWP(exe_scope.CalculateProcess());
51  // Can't make a FunctionCaller without a process.
52  assert(m_jit_process_wp.lock());
53 }
54 
55 // Destructor
57  lldb::ProcessSP process_sp(m_jit_process_wp.lock());
58  if (process_sp) {
59  lldb::ModuleSP jit_module_sp(m_jit_module_wp.lock());
60  if (jit_module_sp)
61  process_sp->GetTarget().GetImages().Remove(jit_module_sp);
62  }
63 }
64 
66  ExecutionContext &exe_ctx, DiagnosticManager &diagnostic_manager) {
67  Process *process = exe_ctx.GetProcessPtr();
68 
69  if (!process) {
70  diagnostic_manager.Printf(eDiagnosticSeverityError, "no process.");
71  return false;
72  }
73 
74  lldb::ProcessSP jit_process_sp(m_jit_process_wp.lock());
75 
76  if (process != jit_process_sp.get()) {
77  diagnostic_manager.Printf(eDiagnosticSeverityError,
78  "process does not match the stored process.");
79  return false;
80  }
81 
82  if (process->GetState() != lldb::eStateStopped) {
83  diagnostic_manager.Printf(eDiagnosticSeverityError,
84  "process is not stopped");
85  return false;
86  }
87 
88  if (!m_compiled) {
89  diagnostic_manager.Printf(eDiagnosticSeverityError,
90  "function not compiled");
91  return false;
92  }
93 
94  if (m_JITted)
95  return true;
96 
97  bool can_interpret = false; // should stay that way
98 
99  Status jit_error(m_parser->PrepareForExecution(
101  can_interpret, eExecutionPolicyAlways));
102 
103  if (!jit_error.Success()) {
104  diagnostic_manager.Printf(eDiagnosticSeverityError,
105  "Error in PrepareForExecution: %s.",
106  jit_error.AsCString());
107  return false;
108  }
109 
110  if (m_parser->GetGenerateDebugInfo()) {
111  lldb::ModuleSP jit_module_sp(m_execution_unit_sp->GetJITModule());
112 
113  if (jit_module_sp) {
114  ConstString const_func_name(FunctionName());
115  FileSpec jit_file;
116  jit_file.SetFilename(const_func_name);
117  jit_module_sp->SetFileSpecAndObjectName(jit_file, ConstString());
118  m_jit_module_wp = jit_module_sp;
119  process->GetTarget().GetImages().Append(jit_module_sp,
120  true /* notify */);
121  }
122  }
123  if (process && m_jit_start_addr)
124  m_jit_process_wp = process->shared_from_this();
125 
126  m_JITted = true;
127 
128  return true;
129 }
130 
132  ExecutionContext &exe_ctx, lldb::addr_t &args_addr_ref,
133  DiagnosticManager &diagnostic_manager) {
134  return WriteFunctionArguments(exe_ctx, args_addr_ref, m_arg_values,
135  diagnostic_manager);
136 }
137 
138 // FIXME: Assure that the ValueList we were passed in is consistent with the one
139 // that defined this function.
140 
142  ExecutionContext &exe_ctx, lldb::addr_t &args_addr_ref,
143  ValueList &arg_values, DiagnosticManager &diagnostic_manager) {
144  // All the information to reconstruct the struct is provided by the
145  // StructExtractor.
146  if (!m_struct_valid) {
147  diagnostic_manager.PutString(eDiagnosticSeverityError,
148  "Argument information was not correctly "
149  "parsed, so the function cannot be called.");
150  return false;
151  }
152 
153  Status error;
155 
156  Process *process = exe_ctx.GetProcessPtr();
157 
158  if (process == nullptr)
159  return return_value;
160 
161  lldb::ProcessSP jit_process_sp(m_jit_process_wp.lock());
162 
163  if (process != jit_process_sp.get())
164  return false;
165 
166  if (args_addr_ref == LLDB_INVALID_ADDRESS) {
167  args_addr_ref = process->AllocateMemory(
168  m_struct_size, lldb::ePermissionsReadable | lldb::ePermissionsWritable,
169  error);
170  if (args_addr_ref == LLDB_INVALID_ADDRESS)
171  return false;
172  m_wrapper_args_addrs.push_back(args_addr_ref);
173  } else {
174  // Make sure this is an address that we've already handed out.
175  if (find(m_wrapper_args_addrs.begin(), m_wrapper_args_addrs.end(),
176  args_addr_ref) == m_wrapper_args_addrs.end()) {
177  return false;
178  }
179  }
180 
181  // TODO: verify fun_addr needs to be a callable address
182  Scalar fun_addr(
184  uint64_t first_offset = m_member_offsets[0];
185  process->WriteScalarToMemory(args_addr_ref + first_offset, fun_addr,
186  process->GetAddressByteSize(), error);
187 
188  // FIXME: We will need to extend this for Variadic functions.
189 
190  Status value_error;
191 
192  size_t num_args = arg_values.GetSize();
193  if (num_args != m_arg_values.GetSize()) {
194  diagnostic_manager.Printf(
196  "Wrong number of arguments - was: %" PRIu64 " should be: %" PRIu64 "",
197  (uint64_t)num_args, (uint64_t)m_arg_values.GetSize());
198  return false;
199  }
200 
201  for (size_t i = 0; i < num_args; i++) {
202  // FIXME: We should sanity check sizes.
203 
204  uint64_t offset = m_member_offsets[i + 1]; // Clang sizes are in bytes.
205  Value *arg_value = arg_values.GetValueAtIndex(i);
206 
207  // FIXME: For now just do scalars:
208 
209  // Special case: if it's a pointer, don't do anything (the ABI supports
210  // passing cstrings)
211 
212  if (arg_value->GetValueType() == Value::ValueType::HostAddress &&
214  arg_value->GetCompilerType().IsPointerType())
215  continue;
216 
217  const Scalar &arg_scalar = arg_value->ResolveValue(&exe_ctx);
218 
219  if (!process->WriteScalarToMemory(args_addr_ref + offset, arg_scalar,
220  arg_scalar.GetByteSize(), error))
221  return false;
222  }
223 
224  return true;
225 }
226 
228  lldb::addr_t &args_addr_ref,
229  DiagnosticManager &diagnostic_manager) {
230  // Since we might need to call allocate memory and maybe call code to make
231  // the caller, we need to be stopped.
232  Process *process = exe_ctx.GetProcessPtr();
233  if (!process) {
234  diagnostic_manager.PutString(eDiagnosticSeverityError, "no process");
235  return false;
236  }
237  if (process->GetState() != lldb::eStateStopped) {
238  diagnostic_manager.PutString(eDiagnosticSeverityError, "process running");
239  return false;
240  }
241  if (CompileFunction(exe_ctx.GetThreadSP(), diagnostic_manager) != 0)
242  return false;
243  if (!WriteFunctionWrapper(exe_ctx, diagnostic_manager))
244  return false;
245  if (!WriteFunctionArguments(exe_ctx, args_addr_ref, diagnostic_manager))
246  return false;
247 
248  Log *log = GetLog(LLDBLog::Step);
249  LLDB_LOGF(log, "Call Address: 0x%" PRIx64 " Struct Address: 0x%" PRIx64 ".\n",
250  m_jit_start_addr, args_addr_ref);
251 
252  return true;
253 }
254 
256  ExecutionContext &exe_ctx, lldb::addr_t args_addr,
257  const EvaluateExpressionOptions &options,
258  DiagnosticManager &diagnostic_manager) {
260 
261  LLDB_LOGF(log,
262  "-- [FunctionCaller::GetThreadPlanToCallFunction] Creating "
263  "thread plan to call function \"%s\" --",
264  m_name.c_str());
265 
266  // FIXME: Use the errors Stream for better error reporting.
267  Thread *thread = exe_ctx.GetThreadPtr();
268  if (thread == nullptr) {
269  diagnostic_manager.PutString(
271  "Can't call a function without a valid thread.");
272  return nullptr;
273  }
274 
275  // Okay, now run the function:
276 
277  Address wrapper_address(m_jit_start_addr);
278 
279  lldb::addr_t args = {args_addr};
280 
281  lldb::ThreadPlanSP new_plan_sp(new ThreadPlanCallFunction(
282  *thread, wrapper_address, CompilerType(), args, options));
283  new_plan_sp->SetIsControllingPlan(true);
284  new_plan_sp->SetOkayToDiscard(false);
285  return new_plan_sp;
286 }
287 
289  lldb::addr_t args_addr,
290  Value &ret_value) {
291  // Read the return value - it is the last field in the struct:
292  // FIXME: How does clang tell us there's no return value? We need to handle
293  // that case.
294  // FIXME: Create our ThreadPlanCallFunction with the return CompilerType, and
295  // then use GetReturnValueObject
296  // to fetch the value. That way we can fetch any values we need.
297 
299 
300  LLDB_LOGF(log,
301  "-- [FunctionCaller::FetchFunctionResults] Fetching function "
302  "results for \"%s\"--",
303  m_name.c_str());
304 
305  Process *process = exe_ctx.GetProcessPtr();
306 
307  if (process == nullptr)
308  return false;
309 
310  lldb::ProcessSP jit_process_sp(m_jit_process_wp.lock());
311 
312  if (process != jit_process_sp.get())
313  return false;
314 
315  Status error;
316  ret_value.GetScalar() = process->ReadUnsignedIntegerFromMemory(
317  args_addr + m_return_offset, m_return_size, 0, error);
318 
319  if (error.Fail())
320  return false;
321 
324  return true;
325 }
326 
328  lldb::addr_t args_addr) {
329  std::list<lldb::addr_t>::iterator pos;
330  pos = std::find(m_wrapper_args_addrs.begin(), m_wrapper_args_addrs.end(),
331  args_addr);
332  if (pos != m_wrapper_args_addrs.end())
333  m_wrapper_args_addrs.erase(pos);
334 
335  exe_ctx.GetProcessRef().DeallocateMemory(args_addr);
336 }
337 
339  ExecutionContext &exe_ctx, lldb::addr_t *args_addr_ptr,
340  const EvaluateExpressionOptions &options,
341  DiagnosticManager &diagnostic_manager, Value &results) {
343 
344  // FunctionCaller::ExecuteFunction execution is always just to get the
345  // result. Unless explicitly asked for, ignore breakpoints and unwind on
346  // error.
347  const bool enable_debugging =
348  exe_ctx.GetTargetPtr() &&
350  EvaluateExpressionOptions real_options = options;
351  real_options.SetDebug(false); // This halts the expression for debugging.
352  real_options.SetGenerateDebugInfo(enable_debugging);
353  real_options.SetUnwindOnError(!enable_debugging);
354  real_options.SetIgnoreBreakpoints(!enable_debugging);
355 
356  lldb::addr_t args_addr;
357 
358  if (args_addr_ptr != nullptr)
359  args_addr = *args_addr_ptr;
360  else
361  args_addr = LLDB_INVALID_ADDRESS;
362 
363  if (CompileFunction(exe_ctx.GetThreadSP(), diagnostic_manager) != 0)
365 
366  if (args_addr == LLDB_INVALID_ADDRESS) {
367  if (!InsertFunction(exe_ctx, args_addr, diagnostic_manager))
369  }
370 
372 
373  LLDB_LOGF(log,
374  "== [FunctionCaller::ExecuteFunction] Executing function \"%s\" ==",
375  m_name.c_str());
376 
377  lldb::ThreadPlanSP call_plan_sp = GetThreadPlanToCallFunction(
378  exe_ctx, args_addr, real_options, diagnostic_manager);
379  if (!call_plan_sp)
381 
382  // We need to make sure we record the fact that we are running an expression
383  // here otherwise this fact will fail to be recorded when fetching an
384  // Objective-C object description
385  if (exe_ctx.GetProcessPtr())
386  exe_ctx.GetProcessPtr()->SetRunningUserExpression(true);
387 
388  return_value = exe_ctx.GetProcessRef().RunThreadPlan(
389  exe_ctx, call_plan_sp, real_options, diagnostic_manager);
390 
391  if (log) {
392  if (return_value != lldb::eExpressionCompleted) {
393  LLDB_LOGF(log,
394  "== [FunctionCaller::ExecuteFunction] Execution of \"%s\" "
395  "completed abnormally: %s ==",
396  m_name.c_str(),
397  Process::ExecutionResultAsCString(return_value));
398  } else {
399  LLDB_LOGF(log,
400  "== [FunctionCaller::ExecuteFunction] Execution of \"%s\" "
401  "completed normally ==",
402  m_name.c_str());
403  }
404  }
405 
406  if (exe_ctx.GetProcessPtr())
407  exe_ctx.GetProcessPtr()->SetRunningUserExpression(false);
408 
409  if (args_addr_ptr != nullptr)
410  *args_addr_ptr = args_addr;
411 
412  if (return_value != lldb::eExpressionCompleted)
413  return return_value;
414 
415  FetchFunctionResults(exe_ctx, args_addr, results);
416 
417  if (args_addr_ptr == nullptr)
418  DeallocateFunctionResults(exe_ctx, args_addr);
419 
421 }
lldb_private::Value::ValueType::Scalar
@ Scalar
A raw scalar value.
lldb_private::ExecutionContext
Definition: ExecutionContext.h:292
lldb_private::ExecutionContext::GetThreadSP
const lldb::ThreadSP & GetThreadSP() const
Get accessor to get the thread shared pointer.
Definition: ExecutionContext.h:464
lldb_private::Process::AllocateMemory
lldb::addr_t AllocateMemory(size_t size, uint32_t permissions, Status &error)
The public interface to allocating memory in the process.
Definition: Process.cpp:2267
lldb_private::Process::DeallocateMemory
Status DeallocateMemory(lldb::addr_t ptr)
The public interface to deallocating memory in the process.
Definition: Process.cpp:2338
FunctionCaller.h
lldb_private::Process::SetRunningUserExpression
void SetRunningUserExpression(bool on)
Definition: Process.cpp:1477
lldb_private::Value
Definition: Value.h:38
lldb_private::Value::SetValueType
void SetValueType(ValueType value_type)
Definition: Value.h:89
lldb_private::ExecutionContext::GetProcessPtr
Process * GetProcessPtr() const
Returns a pointer to the process object.
Definition: ExecutionContext.cpp:206
lldb_private::FunctionCaller::m_return_offset
uint64_t m_return_offset
The offset of the result variable in the struct, in bytes.
Definition: FunctionCaller.h:327
lldb_private::Value::GetValueType
ValueType GetValueType() const
Definition: Value.cpp:107
lldb::ExpressionResults
ExpressionResults
The results of expression evaluation.
Definition: lldb-enumerations.h:271
lldb_private::ValueList::GetValueAtIndex
Value * GetValueAtIndex(size_t idx)
Definition: Value.cpp:670
lldb_private::FunctionCaller::WriteFunctionWrapper
bool WriteFunctionWrapper(ExecutionContext &exe_ctx, DiagnosticManager &diagnostic_manager)
Insert the default function wrapper (using the JIT)
Definition: FunctionCaller.cpp:65
lldb_private::Expression::m_jit_process_wp
lldb::ProcessWP m_jit_process_wp
Expression's always have to have a target...
Definition: Expression.h:93
lldb_private::Scalar
Definition: Scalar.h:34
LLDB_LOGF
#define LLDB_LOGF(log,...)
Definition: Log.h:344
lldb_private::Process
Definition: Process.h:338
Module.h
lldb_private::FunctionCaller::m_name
std::string m_name
The name of this clang function - for debugging purposes.
Definition: FunctionCaller.h:299
lldb_private::Process::GetTarget
Target & GetTarget()
Get the target object pointer for this module.
Definition: Process.h:1219
lldb_private::EvaluateExpressionOptions
Definition: Target.h:277
lldb_private::FunctionCaller::m_jit_module_wp
lldb::ModuleWP m_jit_module_wp
Definition: FunctionCaller.h:297
lldb::eExpressionSetupError
@ eExpressionSetupError
Definition: lldb-enumerations.h:273
lldb_private::Expression::m_jit_start_addr
lldb::addr_t m_jit_start_addr
An expression might have a process, but it doesn't need to (e.g.
Definition: Expression.h:96
lldb_private::ValueList
Definition: Value.h:157
lldb::addr_t
uint64_t addr_t
Definition: lldb-types.h:83
lldb_private::eExecutionPolicyAlways
@ eExecutionPolicyAlways
Definition: lldb-private-enumerations.h:141
CommandReturnObject.h
lldb_private::ValueList::GetSize
size_t GetSize()
Definition: Value.cpp:668
lldb_private::ExecutionContext::GetThreadPtr
Thread * GetThreadPtr() const
Returns a pointer to the thread object.
Definition: ExecutionContext.h:399
lldb_private::ExecutionContext::GetProcessRef
Process & GetProcessRef() const
Returns a reference to the process object.
Definition: ExecutionContext.cpp:229
lldb_private::Target::GetImages
const ModuleList & GetImages() const
Get accessor for the images for this process.
Definition: Target.h:946
lldb_private::Process::GetState
lldb::StateType GetState()
Get accessor for the current process state.
Definition: Process.cpp:1296
Process.h
lldb_private::Value::ContextType::Invalid
@ Invalid
Undefined.
lldb_private::ThreadPlanCallFunction
Definition: ThreadPlanCallFunction.h:20
lldb_private::Value::SetCompilerType
void SetCompilerType(const CompilerType &compiler_type)
Definition: Value.cpp:252
lldb::eStateStopped
@ eStateStopped
Process or thread is stopped and can be examined.
Definition: lldb-enumerations.h:85
lldb_private::FunctionCaller::DeallocateFunctionResults
void DeallocateFunctionResults(ExecutionContext &exe_ctx, lldb::addr_t args_addr)
Deallocate the arguments structure.
Definition: FunctionCaller.cpp:327
Target.h
lldb_private::Value::GetScalar
const Scalar & GetScalar() const
Definition: Value.h:112
lldb_private::FileSpec
Definition: FileSpec.h:56
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:287
lldb_private::eDiagnosticSeverityError
@ eDiagnosticSeverityError
Definition: DiagnosticManager.h:32
lldb_private::FunctionCaller::WriteFunctionArguments
bool WriteFunctionArguments(ExecutionContext &exe_ctx, lldb::addr_t &args_addr_ref, DiagnosticManager &diagnostic_manager)
Insert the default function argument struct.
Definition: FunctionCaller.cpp:131
Log.h
lldb_private::ExecutionContextScope
Definition: ExecutionContextScope.h:32
lldb_private::FunctionCaller::InsertFunction
bool InsertFunction(ExecutionContext &exe_ctx, lldb::addr_t &args_addr_ref, DiagnosticManager &diagnostic_manager)
Insert the default function wrapper and its default argument struct.
Definition: FunctionCaller.cpp:227
lldb_private::Thread
Definition: Thread.h:61
lldb_private::FunctionCaller::m_struct_size
size_t m_struct_size
These values are populated by the ASTStructExtractor.
Definition: FunctionCaller.h:323
lldb_private::FunctionCaller::m_return_size
uint64_t m_return_size
The size of the result variable, in bytes.
Definition: FunctionCaller.h:326
lldb_private::Address::GetCallableLoadAddress
lldb::addr_t GetCallableLoadAddress(Target *target, bool is_indirect=false) const
Get the load address as a callable code load address.
Definition: Address.cpp:336
lldb_private::Expression::m_jit_end_addr
lldb::addr_t m_jit_end_addr
The address of the JITted function within the JIT allocation.
Definition: Expression.h:99
lldb::eExpressionCompleted
@ eExpressionCompleted
Definition: lldb-enumerations.h:272
lldb_private::FunctionCaller::m_execution_unit_sp
std::shared_ptr< IRExecutionUnit > m_execution_unit_sp
Definition: FunctionCaller.h:291
lldb_private::Process::ExecutionResultAsCString
static const char * ExecutionResultAsCString(lldb::ExpressionResults result)
Definition: Process.cpp:5464
Type.h
lldb_private::Process::GetAddressByteSize
uint32_t GetAddressByteSize() const
Definition: Process.cpp:3367
lldb_private::ConstString
Definition: ConstString.h:39
lldb_private::FunctionCaller::m_arg_values
ValueList m_arg_values
The default values of the arguments.
Definition: FunctionCaller.h:330
lldb_private::Scalar::GetByteSize
size_t GetByteSize() const
Definition: Scalar.cpp:131
IRExecutionUnit.h
lldb_private::EvaluateExpressionOptions::SetUnwindOnError
void SetUnwindOnError(bool unwind=false)
Definition: Target.h:324
Thread.h
lldb_private::LLDBLog::Step
@ Step
ThreadPlanCallFunction.h
lldb_private::FunctionCaller::FetchFunctionResults
bool FetchFunctionResults(ExecutionContext &exe_ctx, lldb::addr_t args_addr, Value &ret_value)
Get the result of the function from its struct.
Definition: FunctionCaller.cpp:288
ValueObject.h
lldb_private::Value::ResolveValue
Scalar & ResolveValue(ExecutionContext *exe_ctx)
Definition: Value.cpp:561
ThreadPlan.h
lldb_private::FileSpec::SetFilename
void SetFilename(ConstString filename)
Filename string set accessor.
Definition: FileSpec.cpp:344
lldb_private::EvaluateExpressionOptions::SetIgnoreBreakpoints
void SetIgnoreBreakpoints(bool ignore=false)
Definition: Target.h:328
lldb_private::TargetProperties::GetDebugUtilityExpression
bool GetDebugUtilityExpression() const
Definition: Target.cpp:4768
lldb_private::FunctionCaller::CompileFunction
virtual unsigned CompileFunction(lldb::ThreadSP thread_to_use_sp, DiagnosticManager &diagnostic_manager)=0
Compile the wrapper function.
lldb_private::Status
Definition: Status.h:44
lldb_private::FunctionCaller::FunctionCaller
FunctionCaller(ExecutionContextScope &exe_scope, const CompilerType &return_type, const Address &function_address, const ValueList &arg_value_list, const char *name)
Constructor.
Definition: FunctionCaller.cpp:36
lldb_private::Address
Definition: Address.h:59
lldb_private::DiagnosticManager::PutString
size_t void PutString(DiagnosticSeverity severity, llvm::StringRef str)
Definition: DiagnosticManager.cpp:73
lldb_private::CompilerType::IsPointerType
bool IsPointerType(CompilerType *pointee_type=nullptr) const
Definition: CompilerType.cpp:183
lldb_private::Value::ValueType::HostAddress
@ HostAddress
A host address value (for memory in the process that < A is using liblldb).
lldb_private::FunctionCaller::~FunctionCaller
~FunctionCaller() override
Destructor.
Definition: FunctionCaller.cpp:56
lldb_private::FunctionCaller::m_wrapper_args_addrs
std::list< lldb::addr_t > m_wrapper_args_addrs
The addresses of the arguments to the wrapper function.
Definition: FunctionCaller.h:315
lldb_private::FunctionCaller::m_parser
std::unique_ptr< ExpressionParser > m_parser
The parser responsible for compiling the function.
Definition: FunctionCaller.h:293
lldb_private::DiagnosticManager
Definition: DiagnosticManager.h:93
lldb_private::Value::GetContextType
ContextType GetContextType() const
Definition: Value.h:87
lldb_private::EvaluateExpressionOptions::SetGenerateDebugInfo
void SetGenerateDebugInfo(bool b)
Definition: Target.h:373
lldb_private::FunctionCaller::m_member_offsets
std::vector< uint64_t > m_member_offsets
The offset of each member in the struct, in bytes.
Definition: FunctionCaller.h:325
LLDB_INVALID_ADDRESS
#define LLDB_INVALID_ADDRESS
Definition: lldb-defines.h:74
DataExtractor.h
lldb_private::CompilerType
Generic representation of a type in a programming language.
Definition: CompilerType.h:36
Function.h
lldb_private::Value::GetCompilerType
const CompilerType & GetCompilerType()
Definition: Value.cpp:223
lldb_private::Process::WriteScalarToMemory
size_t WriteScalarToMemory(lldb::addr_t vm_addr, const Scalar &scalar, size_t size, Status &error)
Write all or part of a scalar value to memory.
Definition: Process.cpp:2207
DiagnosticManager.h
lldb_private::FunctionCaller::m_function_return_type
CompilerType m_function_return_type
The opaque clang qual type for the function return type.
Definition: FunctionCaller.h:306
lldb_private::FunctionCaller::m_function_addr
Address m_function_addr
If we don't have the FunctionSP, we at least need the address & return type.
Definition: FunctionCaller.h:304
lldb_private::ExecutionContextScope::CalculateProcess
virtual lldb::ProcessSP CalculateProcess()=0
lldb_private
A class that represents a running process on the host machine.
Definition: SBCommandInterpreterRunOptions.h:16
lldb_private::FunctionCaller::ID
static char ID
Definition: FunctionCaller.h:58
lldb_private::FunctionCaller::ExecuteFunction
lldb::ExpressionResults ExecuteFunction(ExecutionContext &exe_ctx, lldb::addr_t *args_addr_ptr, const EvaluateExpressionOptions &options, DiagnosticManager &diagnostic_manager, Value &results)
Run the function this FunctionCaller was created with.
Definition: FunctionCaller.cpp:338
lldb_private::FunctionCaller::m_JITted
bool m_JITted
True if the wrapper function has already been JIT-compiled.
Definition: FunctionCaller.h:334
lldb_private::FunctionCaller::GetThreadPlanToCallFunction
lldb::ThreadPlanSP GetThreadPlanToCallFunction(ExecutionContext &exe_ctx, lldb::addr_t args_addr, const EvaluateExpressionOptions &options, DiagnosticManager &diagnostic_manager)
Get a thread plan to run the function this FunctionCaller was created with.
Definition: FunctionCaller.cpp:255
lldb_private::EvaluateExpressionOptions::SetDebug
void SetDebug(bool b)
Definition: Target.h:365
State.h
lldb_private::Process::ReadUnsignedIntegerFromMemory
uint64_t ReadUnsignedIntegerFromMemory(lldb::addr_t load_addr, size_t byte_size, uint64_t fail_value, Status &error)
Reads an unsigned integer of the specified byte size from process memory.
Definition: Process.cpp:2067
lldb_private::FunctionCaller::m_compiled
bool m_compiled
True if the wrapper function has already been parsed.
Definition: FunctionCaller.h:332
lldb_private::Log
Definition: Log.h:115
lldb_private::FunctionCaller::FunctionName
const char * FunctionName() override
Return the function name that should be used for executing the expression.
Definition: FunctionCaller.h:272
lldb_private::Process::RunThreadPlan
lldb::ExpressionResults RunThreadPlan(ExecutionContext &exe_ctx, lldb::ThreadPlanSP &thread_plan_sp, const EvaluateExpressionOptions &options, DiagnosticManager &diagnostic_manager)
Definition: Process.cpp:4676
lldb_private::GetLog
Log * GetLog(Cat mask)
Retrieve the Log object for the channel associated with the given log enum.
Definition: Log.h:309
lldb_private::LLDBLog::Expressions
@ Expressions
lldb_private::Expression
Definition: Expression.h:33
ValueObjectList.h
RegisterContext.h
LLDBLog.h
lldb_private::ExecutionContext::GetTargetPtr
Target * GetTargetPtr() const
Returns a pointer to the target object.
Definition: ExecutionContext.cpp:198
ExecutionContext.h
lldb_private::ModuleList::Append
void Append(const lldb::ModuleSP &module_sp, bool notify=true)
Append a module to the module list.
lldb_private::DiagnosticManager::Printf
size_t Printf(DiagnosticSeverity severity, const char *format,...) __attribute__((format(printf
Definition: DiagnosticManager.cpp:59
lldb_private::Status::AsCString
const char * AsCString(const char *default_error_str="unknown error") const
Get the error string associated with the current error.
Definition: Status.cpp:130
lldb_private::FunctionCaller::m_struct_valid
bool m_struct_valid
True if the ASTStructExtractor has populated the variables below.
Definition: FunctionCaller.h:319