llvm-project/lldb/source/API/SBValue.cpp

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//===-- SBValue.cpp ---------------------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "lldb/API/SBValue.h"
#include "lldb/API/SBStream.h"
#include "lldb/API/SBTypeFilter.h"
#include "lldb/API/SBTypeFormat.h"
#include "lldb/API/SBTypeSummary.h"
#include "lldb/API/SBTypeSynthetic.h"
#include "lldb/Breakpoint/Watchpoint.h"
#include "lldb/Core/DataExtractor.h"
#include "lldb/Core/DataVisualization.h"
#include "lldb/Core/Log.h"
#include "lldb/Core/Module.h"
#include "lldb/Core/Scalar.h"
#include "lldb/Core/Stream.h"
#include "lldb/Core/StreamFile.h"
#include "lldb/Core/Value.h"
#include "lldb/Core/ValueObject.h"
#include "lldb/Core/ValueObjectConstResult.h"
#include "lldb/Symbol/Block.h"
#include "lldb/Symbol/ObjectFile.h"
#include "lldb/Symbol/Type.h"
#include "lldb/Symbol/Variable.h"
#include "lldb/Symbol/VariableList.h"
#include "lldb/Target/ExecutionContext.h"
#include "lldb/Target/Process.h"
#include "lldb/Target/StackFrame.h"
#include "lldb/Target/Target.h"
#include "lldb/Target/Thread.h"
#include "lldb/API/SBProcess.h"
#include "lldb/API/SBTarget.h"
#include "lldb/API/SBThread.h"
#include "lldb/API/SBFrame.h"
#include "lldb/API/SBDebugger.h"
using namespace lldb;
using namespace lldb_private;
SBValue::SBValue () :
m_opaque_sp ()
{
}
SBValue::SBValue (const lldb::ValueObjectSP &value_sp)
{
SetSP(value_sp); // whenever setting the SP call SetSP() since it knows how to deal with synthetic values properly
}
SBValue::SBValue(const SBValue &rhs)
{
SetSP(rhs.m_opaque_sp); // whenever setting the SP call SetSP() since it knows how to deal with synthetic values properly
}
SBValue &
SBValue::operator = (const SBValue &rhs)
{
if (this != &rhs)
{
SetSP(rhs.m_opaque_sp); // whenever setting the SP call SetSP() since it knows how to deal with synthetic values properly
}
return *this;
}
SBValue::~SBValue()
{
}
bool
SBValue::IsValid ()
{
// If this function ever changes to anything that does more than just
// check if the opaque shared pointer is non NULL, then we need to update
// all "if (m_opaque_sp)" code in this file.
return m_opaque_sp.get() != NULL;
}
void
SBValue::Clear()
{
m_opaque_sp.reset();
}
SBError
SBValue::GetError()
{
SBError sb_error;
lldb::ValueObjectSP value_sp(GetSP());
if (value_sp)
sb_error.SetError(value_sp->GetError());
SBFrame is now threadsafe using some extra tricks. One issue is that stack frames might go away (the object itself, not the actual logical frame) when we are single stepping due to the way we currently sometimes end up flushing frames when stepping in/out/over. They later will come back to life represented by another object yet they have the same StackID. Now when you get a lldb::SBFrame object, it will track the frame it is initialized with until the thread goes away or the StackID no longer exists in the stack for the thread it was created on. It uses a weak_ptr to both the frame and thread and also stores the StackID. These three items allow us to determine when the stack frame object has gone away (the weak_ptr will be NULL) and allows us to find the correct frame again. In our test suite we had such cases where we were just getting lucky when something like this happened: 1 - stop at breakpoint 2 - get first frame in thread where we stopped 3 - run an expression that causes the program to JIT and run code 4 - run more expressions on the frame from step 2 which was very very luckily still around inside a shared pointer, yet, not part of the current thread (a new stack frame object had appeared with the same stack ID and depth). We now avoid all such issues and properly keep up to date, or we start returning errors when the frame doesn't exist and always responds with invalid answers. Also fixed the UserSettingsController (not going to rewrite this just yet) so that it doesn't crash on shutdown. Using weak_ptr's came in real handy to track when the master controller has already gone away and this allowed me to pull out the previous NotifyOwnerIsShuttingDown() patch as it is no longer needed. llvm-svn: 149231
2012-01-30 15:41:31 +08:00
else
sb_error.SetErrorString("error: invalid value");
return sb_error;
}
user_id_t
SBValue::GetID()
{
lldb::ValueObjectSP value_sp(GetSP());
if (value_sp)
return value_sp->GetID();
return LLDB_INVALID_UID;
}
const char *
SBValue::GetName()
{
const char *name = NULL;
lldb::ValueObjectSP value_sp(GetSP());
if (value_sp)
name = value_sp->GetName().GetCString();
LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
if (log)
{
if (name)
log->Printf ("SBValue(%p)::GetName () => \"%s\"", value_sp.get(), name);
else
log->Printf ("SBValue(%p)::GetName () => NULL", value_sp.get());
}
return name;
}
const char *
SBValue::GetTypeName ()
{
const char *name = NULL;
lldb::ValueObjectSP value_sp(GetSP());
if (value_sp)
name = value_sp->GetQualifiedTypeName().GetCString();
LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
if (log)
{
if (name)
log->Printf ("SBValue(%p)::GetTypeName () => \"%s\"", value_sp.get(), name);
else
log->Printf ("SBValue(%p)::GetTypeName () => NULL", value_sp.get());
}
return name;
}
size_t
SBValue::GetByteSize ()
{
size_t result = 0;
lldb::ValueObjectSP value_sp(GetSP());
if (value_sp)
result = value_sp->GetByteSize();
LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
if (log)
log->Printf ("SBValue(%p)::GetByteSize () => %zu", value_sp.get(), result);
return result;
}
bool
SBValue::IsInScope ()
{
bool result = false;
lldb::ValueObjectSP value_sp(GetSP());
if (value_sp)
{
TargetSP target_sp(value_sp->GetTargetSP());
if (target_sp)
{
Mutex::Locker api_locker (target_sp->GetAPIMutex());
result = value_sp->IsInScope ();
}
}
LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
if (log)
log->Printf ("SBValue(%p)::IsInScope () => %i", value_sp.get(), result);
return result;
}
const char *
SBValue::GetValue ()
{
LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
const char *cstr = NULL;
lldb::ValueObjectSP value_sp(GetSP());
if (value_sp)
{
ProcessSP process_sp(value_sp->GetProcessSP());
Process::StopLocker stop_locker;
if (process_sp && !stop_locker.TryLock(&process_sp->GetRunLock()))
{
if (log)
log->Printf ("SBValue(%p)::GetValue() => error: process is running", value_sp.get());
}
else
{
TargetSP target_sp(value_sp->GetTargetSP());
if (target_sp)
{
Mutex::Locker api_locker (target_sp->GetAPIMutex());
cstr = value_sp->GetValueAsCString ();
}
}
}
if (log)
{
if (cstr)
log->Printf ("SBValue(%p)::GetValue() => \"%s\"", value_sp.get(), cstr);
else
log->Printf ("SBValue(%p)::GetValue() => NULL", value_sp.get());
}
return cstr;
}
ValueType
SBValue::GetValueType ()
{
ValueType result = eValueTypeInvalid;
lldb::ValueObjectSP value_sp(GetSP());
if (value_sp)
result = value_sp->GetValueType();
LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
if (log)
{
switch (result)
{
case eValueTypeInvalid: log->Printf ("SBValue(%p)::GetValueType () => eValueTypeInvalid", value_sp.get()); break;
case eValueTypeVariableGlobal: log->Printf ("SBValue(%p)::GetValueType () => eValueTypeVariableGlobal", value_sp.get()); break;
case eValueTypeVariableStatic: log->Printf ("SBValue(%p)::GetValueType () => eValueTypeVariableStatic", value_sp.get()); break;
case eValueTypeVariableArgument:log->Printf ("SBValue(%p)::GetValueType () => eValueTypeVariableArgument", value_sp.get()); break;
case eValueTypeVariableLocal: log->Printf ("SBValue(%p)::GetValueType () => eValueTypeVariableLocal", value_sp.get()); break;
case eValueTypeRegister: log->Printf ("SBValue(%p)::GetValueType () => eValueTypeRegister", value_sp.get()); break;
case eValueTypeRegisterSet: log->Printf ("SBValue(%p)::GetValueType () => eValueTypeRegisterSet", value_sp.get()); break;
case eValueTypeConstResult: log->Printf ("SBValue(%p)::GetValueType () => eValueTypeConstResult", value_sp.get()); break;
default: log->Printf ("SBValue(%p)::GetValueType () => %i ???", value_sp.get(), result); break;
}
}
return result;
}
const char *
SBValue::GetObjectDescription ()
{
LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
const char *cstr = NULL;
lldb::ValueObjectSP value_sp(GetSP());
if (value_sp)
{
ProcessSP process_sp(value_sp->GetProcessSP());
Process::StopLocker stop_locker;
if (process_sp && !stop_locker.TryLock(&process_sp->GetRunLock()))
{
if (log)
log->Printf ("SBValue(%p)::GetObjectDescription() => error: process is running", value_sp.get());
}
else
{
TargetSP target_sp(value_sp->GetTargetSP());
if (target_sp)
{
Mutex::Locker api_locker (target_sp->GetAPIMutex());
cstr = value_sp->GetObjectDescription ();
}
}
}
if (log)
{
if (cstr)
log->Printf ("SBValue(%p)::GetObjectDescription() => \"%s\"", value_sp.get(), cstr);
else
log->Printf ("SBValue(%p)::GetObjectDescription() => NULL", value_sp.get());
}
return cstr;
}
SBType
SBValue::GetType()
{
LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
SBType sb_type;
lldb::ValueObjectSP value_sp(GetSP());
TypeImplSP type_sp;
if (value_sp)
{
ProcessSP process_sp(value_sp->GetProcessSP());
Process::StopLocker stop_locker;
if (process_sp && !stop_locker.TryLock(&process_sp->GetRunLock()))
{
if (log)
log->Printf ("SBValue(%p)::GetValueDidChange() => error: process is running", value_sp.get());
}
else
{
TargetSP target_sp(value_sp->GetTargetSP());
if (target_sp)
{
Mutex::Locker api_locker (target_sp->GetAPIMutex());
type_sp.reset (new TypeImpl(ClangASTType (value_sp->GetClangAST(), value_sp->GetClangType())));
sb_type.SetSP(type_sp);
}
}
}
if (log)
{
if (type_sp)
log->Printf ("SBValue(%p)::GetType => SBType(%p)", value_sp.get(), type_sp.get());
else
log->Printf ("SBValue(%p)::GetType => NULL", value_sp.get());
}
return sb_type;
}
bool
SBValue::GetValueDidChange ()
{
LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
bool result = false;
lldb::ValueObjectSP value_sp(GetSP());
if (value_sp)
{
ProcessSP process_sp(value_sp->GetProcessSP());
Process::StopLocker stop_locker;
if (process_sp && !stop_locker.TryLock(&process_sp->GetRunLock()))
{
if (log)
log->Printf ("SBValue(%p)::GetValueDidChange() => error: process is running", value_sp.get());
}
else
{
TargetSP target_sp(value_sp->GetTargetSP());
if (target_sp)
{
Mutex::Locker api_locker (target_sp->GetAPIMutex());
result = value_sp->GetValueDidChange ();
}
}
}
if (log)
log->Printf ("SBValue(%p)::GetValueDidChange() => %i", value_sp.get(), result);
return result;
}
#ifndef LLDB_DISABLE_PYTHON
const char *
SBValue::GetSummary ()
{
LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
const char *cstr = NULL;
lldb::ValueObjectSP value_sp(GetSP());
if (value_sp)
{
ProcessSP process_sp(value_sp->GetProcessSP());
Process::StopLocker stop_locker;
if (process_sp && !stop_locker.TryLock(&process_sp->GetRunLock()))
{
if (log)
log->Printf ("SBValue(%p)::GetSummary() => error: process is running", value_sp.get());
}
else
{
TargetSP target_sp(value_sp->GetTargetSP());
if (target_sp)
{
Mutex::Locker api_locker (target_sp->GetAPIMutex());
cstr = value_sp->GetSummaryAsCString();
}
}
}
if (log)
{
if (cstr)
log->Printf ("SBValue(%p)::GetSummary() => \"%s\"", value_sp.get(), cstr);
else
log->Printf ("SBValue(%p)::GetSummary() => NULL", value_sp.get());
}
return cstr;
}
#endif // LLDB_DISABLE_PYTHON
const char *
SBValue::GetLocation ()
{
LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
const char *cstr = NULL;
lldb::ValueObjectSP value_sp(GetSP());
if (value_sp)
{
ProcessSP process_sp(value_sp->GetProcessSP());
Process::StopLocker stop_locker;
if (process_sp && !stop_locker.TryLock(&process_sp->GetRunLock()))
{
if (log)
log->Printf ("SBValue(%p)::GetLocation() => error: process is running", value_sp.get());
}
else
{
TargetSP target_sp(value_sp->GetTargetSP());
if (target_sp)
{
Mutex::Locker api_locker (target_sp->GetAPIMutex());
cstr = value_sp->GetLocationAsCString();
}
}
}
if (log)
{
if (cstr)
log->Printf ("SBValue(%p)::GetLocation() => \"%s\"", value_sp.get(), cstr);
else
log->Printf ("SBValue(%p)::GetLocation() => NULL", value_sp.get());
}
return cstr;
}
bool
SBValue::SetValueFromCString (const char *value_str)
{
bool success = false;
lldb::ValueObjectSP value_sp(GetSP());
LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
if (value_sp)
{
ProcessSP process_sp(value_sp->GetProcessSP());
Process::StopLocker stop_locker;
if (process_sp && !stop_locker.TryLock(&process_sp->GetRunLock()))
{
if (log)
log->Printf ("SBValue(%p)::SetValueFromCString() => error: process is running", value_sp.get());
}
else
{
TargetSP target_sp(value_sp->GetTargetSP());
if (target_sp)
{
Mutex::Locker api_locker (target_sp->GetAPIMutex());
success = value_sp->SetValueFromCString (value_str);
}
}
}
if (log)
log->Printf ("SBValue(%p)::SetValueFromCString(\"%s\") => %i", value_sp.get(), value_str, success);
return success;
}
lldb::SBTypeFormat
SBValue::GetTypeFormat ()
{
lldb::SBTypeFormat format;
lldb::ValueObjectSP value_sp(GetSP());
if (value_sp)
{
ProcessSP process_sp(value_sp->GetProcessSP());
Process::StopLocker stop_locker;
if (process_sp && !stop_locker.TryLock(&process_sp->GetRunLock()))
{
LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
if (log)
log->Printf ("SBValue(%p)::GetTypeSummary() => error: process is running", value_sp.get());
}
else
{
TargetSP target_sp(value_sp->GetTargetSP());
if (target_sp)
{
Mutex::Locker api_locker (target_sp->GetAPIMutex());
if (value_sp->UpdateValueIfNeeded(true))
{
lldb::TypeFormatImplSP format_sp = value_sp->GetValueFormat();
if (format_sp)
format.SetSP(format_sp);
}
}
}
}
return format;
}
#ifndef LLDB_DISABLE_PYTHON
lldb::SBTypeSummary
SBValue::GetTypeSummary ()
{
lldb::SBTypeSummary summary;
lldb::ValueObjectSP value_sp(GetSP());
if (value_sp)
{
ProcessSP process_sp(value_sp->GetProcessSP());
Process::StopLocker stop_locker;
if (process_sp && !stop_locker.TryLock(&process_sp->GetRunLock()))
{
LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
if (log)
log->Printf ("SBValue(%p)::GetTypeSummary() => error: process is running", value_sp.get());
}
else
{
TargetSP target_sp(value_sp->GetTargetSP());
if (target_sp)
{
Mutex::Locker api_locker (target_sp->GetAPIMutex());
if (value_sp->UpdateValueIfNeeded(true))
{
lldb::TypeSummaryImplSP summary_sp = value_sp->GetSummaryFormat();
if (summary_sp)
summary.SetSP(summary_sp);
}
}
}
}
return summary;
}
#endif // LLDB_DISABLE_PYTHON
lldb::SBTypeFilter
SBValue::GetTypeFilter ()
{
lldb::SBTypeFilter filter;
lldb::ValueObjectSP value_sp(GetSP());
if (value_sp)
{
ProcessSP process_sp(value_sp->GetProcessSP());
Process::StopLocker stop_locker;
if (process_sp && !stop_locker.TryLock(&process_sp->GetRunLock()))
{
LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
if (log)
log->Printf ("SBValue(%p)::GetTypeFilter() => error: process is running", value_sp.get());
}
else
{
TargetSP target_sp(value_sp->GetTargetSP());
if (target_sp)
{
Mutex::Locker api_locker (target_sp->GetAPIMutex());
if (value_sp->UpdateValueIfNeeded(true))
{
lldb::SyntheticChildrenSP synthetic_sp = value_sp->GetSyntheticChildren();
if (synthetic_sp && !synthetic_sp->IsScripted())
{
TypeFilterImplSP filter_sp = STD_STATIC_POINTER_CAST(TypeFilterImpl,synthetic_sp);
filter.SetSP(filter_sp);
}
}
}
}
}
return filter;
}
#ifndef LLDB_DISABLE_PYTHON
lldb::SBTypeSynthetic
SBValue::GetTypeSynthetic ()
{
lldb::SBTypeSynthetic synthetic;
lldb::ValueObjectSP value_sp(GetSP());
if (value_sp)
{
ProcessSP process_sp(value_sp->GetProcessSP());
Process::StopLocker stop_locker;
if (process_sp && !stop_locker.TryLock(&process_sp->GetRunLock()))
{
LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
if (log)
log->Printf ("SBValue(%p)::GetTypeSynthetic() => error: process is running", value_sp.get());
}
else
{
TargetSP target_sp(value_sp->GetTargetSP());
if (target_sp)
{
Mutex::Locker api_locker (target_sp->GetAPIMutex());
if (value_sp->UpdateValueIfNeeded(true))
{
lldb::SyntheticChildrenSP children_sp = value_sp->GetSyntheticChildren();
if (children_sp && children_sp->IsScripted())
{
TypeSyntheticImplSP synth_sp = STD_STATIC_POINTER_CAST(TypeSyntheticImpl,children_sp);
synthetic.SetSP(synth_sp);
}
}
}
}
}
return synthetic;
}
#endif
lldb::SBValue
SBValue::CreateChildAtOffset (const char *name, uint32_t offset, SBType type)
{
lldb::SBValue sb_value;
lldb::ValueObjectSP value_sp(GetSP());
lldb::ValueObjectSP new_value_sp;
if (value_sp)
{
ProcessSP process_sp(value_sp->GetProcessSP());
Process::StopLocker stop_locker;
if (process_sp && !stop_locker.TryLock(&process_sp->GetRunLock()))
{
LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
if (log)
log->Printf ("SBValue(%p)::GetTypeSynthetic() => error: process is running", value_sp.get());
}
else
{
TargetSP target_sp(value_sp->GetTargetSP());
if (target_sp)
{
Mutex::Locker api_locker (target_sp->GetAPIMutex());
TypeImplSP type_sp (type.GetSP());
if (type.IsValid())
{
sb_value = SBValue(value_sp->GetSyntheticChildAtOffset(offset, type_sp->GetClangASTType(), true));
new_value_sp = sb_value.GetSP();
if (new_value_sp)
new_value_sp->SetName(ConstString(name));
}
}
}
}
LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
if (log)
{
if (new_value_sp)
log->Printf ("SBValue(%p)::GetChildAtOffset => \"%s\"", value_sp.get(), new_value_sp->GetName().AsCString());
else
log->Printf ("SBValue(%p)::GetChildAtOffset => NULL", value_sp.get());
}
return sb_value;
}
lldb::SBValue
SBValue::Cast (SBType type)
{
lldb::SBValue sb_value;
lldb::ValueObjectSP value_sp(GetSP());
TypeImplSP type_sp (type.GetSP());
if (value_sp && type_sp)
sb_value.SetSP(value_sp->Cast(type_sp->GetClangASTType()));
return sb_value;
}
lldb::SBValue
SBValue::CreateValueFromExpression (const char *name, const char* expression)
{
LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
lldb::SBValue sb_value;
lldb::ValueObjectSP value_sp(GetSP());
lldb::ValueObjectSP new_value_sp;
if (value_sp)
{
ExecutionContext exe_ctx (value_sp->GetExecutionContextRef());
ProcessSP process_sp(exe_ctx.GetProcessSP());
Process::StopLocker stop_locker;
if (process_sp && !stop_locker.TryLock(&process_sp->GetRunLock()))
{
if (log)
log->Printf ("SBValue(%p)::CreateValueFromExpression() => error: process is running", value_sp.get());
}
else
{
Target* target = exe_ctx.GetTargetPtr();
if (target)
{
target->EvaluateExpression (expression,
exe_ctx.GetFramePtr(),
eExecutionPolicyOnlyWhenNeeded,
false, // coerce to id
true, // unwind on error
true, // keep in memory
eNoDynamicValues,
new_value_sp);
if (new_value_sp)
{
new_value_sp->SetName(ConstString(name));
sb_value.SetSP(new_value_sp);
}
}
}
}
if (log)
{
if (new_value_sp)
log->Printf ("SBValue(%p)::GetChildFromExpression(name=\"%s\", expression=\"%s\") => SBValue (%p)",
value_sp.get(),
name,
expression,
new_value_sp.get());
else
log->Printf ("SBValue(%p)::GetChildFromExpression(name=\"%s\", expression=\"%s\") => NULL",
value_sp.get(),
name,
expression);
}
return sb_value;
}
lldb::SBValue
SBValue::CreateValueFromAddress(const char* name, lldb::addr_t address, SBType sb_type)
{
lldb::SBValue sb_value;
lldb::ValueObjectSP value_sp(GetSP());
lldb::ValueObjectSP new_value_sp;
lldb::TypeImplSP type_impl_sp (sb_type.GetSP());
if (value_sp && type_impl_sp)
{
ClangASTType pointee_ast_type(type_impl_sp->GetASTContext(), type_impl_sp->GetClangASTType().GetPointerType ());
lldb::TypeImplSP pointee_type_impl_sp (new TypeImpl(pointee_ast_type));
if (pointee_type_impl_sp)
{
lldb::DataBufferSP buffer(new lldb_private::DataBufferHeap(&address,sizeof(lldb::addr_t)));
ExecutionContext exe_ctx (value_sp->GetExecutionContextRef());
ValueObjectSP ptr_result_valobj_sp(ValueObjectConstResult::Create (exe_ctx.GetBestExecutionContextScope(),
pointee_type_impl_sp->GetASTContext(),
pointee_type_impl_sp->GetOpaqueQualType(),
ConstString(name),
buffer,
lldb::endian::InlHostByteOrder(),
exe_ctx.GetAddressByteSize()));
if (ptr_result_valobj_sp)
{
ptr_result_valobj_sp->GetValue().SetValueType(Value::eValueTypeLoadAddress);
Error err;
new_value_sp = ptr_result_valobj_sp->Dereference(err);
if (new_value_sp)
new_value_sp->SetName(ConstString(name));
}
sb_value.SetSP(new_value_sp);
}
}
LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
if (log)
{
if (new_value_sp)
log->Printf ("SBValue(%p)::CreateValueFromAddress => \"%s\"", value_sp.get(), new_value_sp->GetName().AsCString());
2011-08-10 06:38:07 +08:00
else
log->Printf ("SBValue(%p)::CreateValueFromAddress => NULL", value_sp.get());
2011-08-10 06:38:07 +08:00
}
return sb_value;
}
Redesign of the interaction between Python and frozen objects: - introduced two new classes ValueObjectConstResultChild and ValueObjectConstResultImpl: the first one is a ValueObjectChild obtained from a ValueObjectConstResult, the second is a common implementation backend for VOCR and VOCRCh of method calls meant to read through pointers stored in frozen objects ; now such reads transparently move from host to target as required - as a consequence of the above, removed code that made target-memory copies of expression results in several places throughout LLDB, and also removed code that enabled to recognize an expression result VO as such - introduced a new GetPointeeData() method in ValueObject that lets you read a given amount of objects of type T from a VO representing a T* or T[], and doing dereferences transparently in private layer it returns a DataExtractor ; in public layer it returns an instance of a newly created lldb::SBData - as GetPointeeData() does the right thing for both frozen and non-frozen ValueObject's, reimplemented ReadPointedString() to use it en lieu of doing the raw read itself - introduced a new GetData() method in ValueObject that lets you get a copy of the data that backs the ValueObject (for pointers, this returns the address without any previous dereferencing steps ; for arrays it actually reads the whole chunk of memory) in public layer this returns an SBData, just like GetPointeeData() - introduced a new CreateValueFromData() method in SBValue that lets you create a new SBValue from a chunk of data wrapped in an SBData the limitation to remember for this kind of SBValue is that they have no address: extracting the address-of for these objects (with any of GetAddress(), GetLoadAddress() and AddressOf()) will return invalid values - added several tests to check that "p"-ing objects (STL classes, char* and char[]) will do the right thing Solved a bug where global pointers to global variables were not dereferenced correctly for display New target setting "max-string-summary-length" gives the maximum number of characters to show in a string when summarizing it, instead of the hardcoded 128 Solved a bug where the summary for char[] and char* would not be shown if the ValueObject's were dumped via the "p" command Removed m_pointers_point_to_load_addrs from ValueObject. Introduced a new m_address_type_of_children, which each ValueObject can set to tell the address type of any pointers and/or references it creates. In the current codebase, this is load address most of the time (the only notable exception being file addresses that generate file address children UNLESS we have a live process) Updated help text for summary-string Fixed an issue in STL formatters where std::stlcontainer::iterator would match the container's synthetic children providers Edited the syntax and help for some commands to have proper argument types llvm-svn: 139160
2011-09-07 03:20:51 +08:00
lldb::SBValue
SBValue::CreateValueFromData (const char* name, SBData data, SBType type)
Redesign of the interaction between Python and frozen objects: - introduced two new classes ValueObjectConstResultChild and ValueObjectConstResultImpl: the first one is a ValueObjectChild obtained from a ValueObjectConstResult, the second is a common implementation backend for VOCR and VOCRCh of method calls meant to read through pointers stored in frozen objects ; now such reads transparently move from host to target as required - as a consequence of the above, removed code that made target-memory copies of expression results in several places throughout LLDB, and also removed code that enabled to recognize an expression result VO as such - introduced a new GetPointeeData() method in ValueObject that lets you read a given amount of objects of type T from a VO representing a T* or T[], and doing dereferences transparently in private layer it returns a DataExtractor ; in public layer it returns an instance of a newly created lldb::SBData - as GetPointeeData() does the right thing for both frozen and non-frozen ValueObject's, reimplemented ReadPointedString() to use it en lieu of doing the raw read itself - introduced a new GetData() method in ValueObject that lets you get a copy of the data that backs the ValueObject (for pointers, this returns the address without any previous dereferencing steps ; for arrays it actually reads the whole chunk of memory) in public layer this returns an SBData, just like GetPointeeData() - introduced a new CreateValueFromData() method in SBValue that lets you create a new SBValue from a chunk of data wrapped in an SBData the limitation to remember for this kind of SBValue is that they have no address: extracting the address-of for these objects (with any of GetAddress(), GetLoadAddress() and AddressOf()) will return invalid values - added several tests to check that "p"-ing objects (STL classes, char* and char[]) will do the right thing Solved a bug where global pointers to global variables were not dereferenced correctly for display New target setting "max-string-summary-length" gives the maximum number of characters to show in a string when summarizing it, instead of the hardcoded 128 Solved a bug where the summary for char[] and char* would not be shown if the ValueObject's were dumped via the "p" command Removed m_pointers_point_to_load_addrs from ValueObject. Introduced a new m_address_type_of_children, which each ValueObject can set to tell the address type of any pointers and/or references it creates. In the current codebase, this is load address most of the time (the only notable exception being file addresses that generate file address children UNLESS we have a live process) Updated help text for summary-string Fixed an issue in STL formatters where std::stlcontainer::iterator would match the container's synthetic children providers Edited the syntax and help for some commands to have proper argument types llvm-svn: 139160
2011-09-07 03:20:51 +08:00
{
lldb::SBValue sb_value;
lldb::ValueObjectSP new_value_sp;
lldb::ValueObjectSP value_sp(GetSP());
if (value_sp)
Redesign of the interaction between Python and frozen objects: - introduced two new classes ValueObjectConstResultChild and ValueObjectConstResultImpl: the first one is a ValueObjectChild obtained from a ValueObjectConstResult, the second is a common implementation backend for VOCR and VOCRCh of method calls meant to read through pointers stored in frozen objects ; now such reads transparently move from host to target as required - as a consequence of the above, removed code that made target-memory copies of expression results in several places throughout LLDB, and also removed code that enabled to recognize an expression result VO as such - introduced a new GetPointeeData() method in ValueObject that lets you read a given amount of objects of type T from a VO representing a T* or T[], and doing dereferences transparently in private layer it returns a DataExtractor ; in public layer it returns an instance of a newly created lldb::SBData - as GetPointeeData() does the right thing for both frozen and non-frozen ValueObject's, reimplemented ReadPointedString() to use it en lieu of doing the raw read itself - introduced a new GetData() method in ValueObject that lets you get a copy of the data that backs the ValueObject (for pointers, this returns the address without any previous dereferencing steps ; for arrays it actually reads the whole chunk of memory) in public layer this returns an SBData, just like GetPointeeData() - introduced a new CreateValueFromData() method in SBValue that lets you create a new SBValue from a chunk of data wrapped in an SBData the limitation to remember for this kind of SBValue is that they have no address: extracting the address-of for these objects (with any of GetAddress(), GetLoadAddress() and AddressOf()) will return invalid values - added several tests to check that "p"-ing objects (STL classes, char* and char[]) will do the right thing Solved a bug where global pointers to global variables were not dereferenced correctly for display New target setting "max-string-summary-length" gives the maximum number of characters to show in a string when summarizing it, instead of the hardcoded 128 Solved a bug where the summary for char[] and char* would not be shown if the ValueObject's were dumped via the "p" command Removed m_pointers_point_to_load_addrs from ValueObject. Introduced a new m_address_type_of_children, which each ValueObject can set to tell the address type of any pointers and/or references it creates. In the current codebase, this is load address most of the time (the only notable exception being file addresses that generate file address children UNLESS we have a live process) Updated help text for summary-string Fixed an issue in STL formatters where std::stlcontainer::iterator would match the container's synthetic children providers Edited the syntax and help for some commands to have proper argument types llvm-svn: 139160
2011-09-07 03:20:51 +08:00
{
ExecutionContext exe_ctx (value_sp->GetExecutionContextRef());
new_value_sp = ValueObjectConstResult::Create (exe_ctx.GetBestExecutionContextScope(),
type.m_opaque_sp->GetASTContext() ,
type.m_opaque_sp->GetOpaqueQualType(),
ConstString(name),
*data.m_opaque_sp,
LLDB_INVALID_ADDRESS);
new_value_sp->SetAddressTypeOfChildren(eAddressTypeLoad);
sb_value.SetSP(new_value_sp);
Redesign of the interaction between Python and frozen objects: - introduced two new classes ValueObjectConstResultChild and ValueObjectConstResultImpl: the first one is a ValueObjectChild obtained from a ValueObjectConstResult, the second is a common implementation backend for VOCR and VOCRCh of method calls meant to read through pointers stored in frozen objects ; now such reads transparently move from host to target as required - as a consequence of the above, removed code that made target-memory copies of expression results in several places throughout LLDB, and also removed code that enabled to recognize an expression result VO as such - introduced a new GetPointeeData() method in ValueObject that lets you read a given amount of objects of type T from a VO representing a T* or T[], and doing dereferences transparently in private layer it returns a DataExtractor ; in public layer it returns an instance of a newly created lldb::SBData - as GetPointeeData() does the right thing for both frozen and non-frozen ValueObject's, reimplemented ReadPointedString() to use it en lieu of doing the raw read itself - introduced a new GetData() method in ValueObject that lets you get a copy of the data that backs the ValueObject (for pointers, this returns the address without any previous dereferencing steps ; for arrays it actually reads the whole chunk of memory) in public layer this returns an SBData, just like GetPointeeData() - introduced a new CreateValueFromData() method in SBValue that lets you create a new SBValue from a chunk of data wrapped in an SBData the limitation to remember for this kind of SBValue is that they have no address: extracting the address-of for these objects (with any of GetAddress(), GetLoadAddress() and AddressOf()) will return invalid values - added several tests to check that "p"-ing objects (STL classes, char* and char[]) will do the right thing Solved a bug where global pointers to global variables were not dereferenced correctly for display New target setting "max-string-summary-length" gives the maximum number of characters to show in a string when summarizing it, instead of the hardcoded 128 Solved a bug where the summary for char[] and char* would not be shown if the ValueObject's were dumped via the "p" command Removed m_pointers_point_to_load_addrs from ValueObject. Introduced a new m_address_type_of_children, which each ValueObject can set to tell the address type of any pointers and/or references it creates. In the current codebase, this is load address most of the time (the only notable exception being file addresses that generate file address children UNLESS we have a live process) Updated help text for summary-string Fixed an issue in STL formatters where std::stlcontainer::iterator would match the container's synthetic children providers Edited the syntax and help for some commands to have proper argument types llvm-svn: 139160
2011-09-07 03:20:51 +08:00
}
LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
if (log)
{
if (new_value_sp)
log->Printf ("SBValue(%p)::GetChildFromExpression => \"%s\"", value_sp.get(), new_value_sp->GetName().AsCString());
Redesign of the interaction between Python and frozen objects: - introduced two new classes ValueObjectConstResultChild and ValueObjectConstResultImpl: the first one is a ValueObjectChild obtained from a ValueObjectConstResult, the second is a common implementation backend for VOCR and VOCRCh of method calls meant to read through pointers stored in frozen objects ; now such reads transparently move from host to target as required - as a consequence of the above, removed code that made target-memory copies of expression results in several places throughout LLDB, and also removed code that enabled to recognize an expression result VO as such - introduced a new GetPointeeData() method in ValueObject that lets you read a given amount of objects of type T from a VO representing a T* or T[], and doing dereferences transparently in private layer it returns a DataExtractor ; in public layer it returns an instance of a newly created lldb::SBData - as GetPointeeData() does the right thing for both frozen and non-frozen ValueObject's, reimplemented ReadPointedString() to use it en lieu of doing the raw read itself - introduced a new GetData() method in ValueObject that lets you get a copy of the data that backs the ValueObject (for pointers, this returns the address without any previous dereferencing steps ; for arrays it actually reads the whole chunk of memory) in public layer this returns an SBData, just like GetPointeeData() - introduced a new CreateValueFromData() method in SBValue that lets you create a new SBValue from a chunk of data wrapped in an SBData the limitation to remember for this kind of SBValue is that they have no address: extracting the address-of for these objects (with any of GetAddress(), GetLoadAddress() and AddressOf()) will return invalid values - added several tests to check that "p"-ing objects (STL classes, char* and char[]) will do the right thing Solved a bug where global pointers to global variables were not dereferenced correctly for display New target setting "max-string-summary-length" gives the maximum number of characters to show in a string when summarizing it, instead of the hardcoded 128 Solved a bug where the summary for char[] and char* would not be shown if the ValueObject's were dumped via the "p" command Removed m_pointers_point_to_load_addrs from ValueObject. Introduced a new m_address_type_of_children, which each ValueObject can set to tell the address type of any pointers and/or references it creates. In the current codebase, this is load address most of the time (the only notable exception being file addresses that generate file address children UNLESS we have a live process) Updated help text for summary-string Fixed an issue in STL formatters where std::stlcontainer::iterator would match the container's synthetic children providers Edited the syntax and help for some commands to have proper argument types llvm-svn: 139160
2011-09-07 03:20:51 +08:00
else
log->Printf ("SBValue(%p)::GetChildFromExpression => NULL", value_sp.get());
Redesign of the interaction between Python and frozen objects: - introduced two new classes ValueObjectConstResultChild and ValueObjectConstResultImpl: the first one is a ValueObjectChild obtained from a ValueObjectConstResult, the second is a common implementation backend for VOCR and VOCRCh of method calls meant to read through pointers stored in frozen objects ; now such reads transparently move from host to target as required - as a consequence of the above, removed code that made target-memory copies of expression results in several places throughout LLDB, and also removed code that enabled to recognize an expression result VO as such - introduced a new GetPointeeData() method in ValueObject that lets you read a given amount of objects of type T from a VO representing a T* or T[], and doing dereferences transparently in private layer it returns a DataExtractor ; in public layer it returns an instance of a newly created lldb::SBData - as GetPointeeData() does the right thing for both frozen and non-frozen ValueObject's, reimplemented ReadPointedString() to use it en lieu of doing the raw read itself - introduced a new GetData() method in ValueObject that lets you get a copy of the data that backs the ValueObject (for pointers, this returns the address without any previous dereferencing steps ; for arrays it actually reads the whole chunk of memory) in public layer this returns an SBData, just like GetPointeeData() - introduced a new CreateValueFromData() method in SBValue that lets you create a new SBValue from a chunk of data wrapped in an SBData the limitation to remember for this kind of SBValue is that they have no address: extracting the address-of for these objects (with any of GetAddress(), GetLoadAddress() and AddressOf()) will return invalid values - added several tests to check that "p"-ing objects (STL classes, char* and char[]) will do the right thing Solved a bug where global pointers to global variables were not dereferenced correctly for display New target setting "max-string-summary-length" gives the maximum number of characters to show in a string when summarizing it, instead of the hardcoded 128 Solved a bug where the summary for char[] and char* would not be shown if the ValueObject's were dumped via the "p" command Removed m_pointers_point_to_load_addrs from ValueObject. Introduced a new m_address_type_of_children, which each ValueObject can set to tell the address type of any pointers and/or references it creates. In the current codebase, this is load address most of the time (the only notable exception being file addresses that generate file address children UNLESS we have a live process) Updated help text for summary-string Fixed an issue in STL formatters where std::stlcontainer::iterator would match the container's synthetic children providers Edited the syntax and help for some commands to have proper argument types llvm-svn: 139160
2011-09-07 03:20:51 +08:00
}
return sb_value;
Redesign of the interaction between Python and frozen objects: - introduced two new classes ValueObjectConstResultChild and ValueObjectConstResultImpl: the first one is a ValueObjectChild obtained from a ValueObjectConstResult, the second is a common implementation backend for VOCR and VOCRCh of method calls meant to read through pointers stored in frozen objects ; now such reads transparently move from host to target as required - as a consequence of the above, removed code that made target-memory copies of expression results in several places throughout LLDB, and also removed code that enabled to recognize an expression result VO as such - introduced a new GetPointeeData() method in ValueObject that lets you read a given amount of objects of type T from a VO representing a T* or T[], and doing dereferences transparently in private layer it returns a DataExtractor ; in public layer it returns an instance of a newly created lldb::SBData - as GetPointeeData() does the right thing for both frozen and non-frozen ValueObject's, reimplemented ReadPointedString() to use it en lieu of doing the raw read itself - introduced a new GetData() method in ValueObject that lets you get a copy of the data that backs the ValueObject (for pointers, this returns the address without any previous dereferencing steps ; for arrays it actually reads the whole chunk of memory) in public layer this returns an SBData, just like GetPointeeData() - introduced a new CreateValueFromData() method in SBValue that lets you create a new SBValue from a chunk of data wrapped in an SBData the limitation to remember for this kind of SBValue is that they have no address: extracting the address-of for these objects (with any of GetAddress(), GetLoadAddress() and AddressOf()) will return invalid values - added several tests to check that "p"-ing objects (STL classes, char* and char[]) will do the right thing Solved a bug where global pointers to global variables were not dereferenced correctly for display New target setting "max-string-summary-length" gives the maximum number of characters to show in a string when summarizing it, instead of the hardcoded 128 Solved a bug where the summary for char[] and char* would not be shown if the ValueObject's were dumped via the "p" command Removed m_pointers_point_to_load_addrs from ValueObject. Introduced a new m_address_type_of_children, which each ValueObject can set to tell the address type of any pointers and/or references it creates. In the current codebase, this is load address most of the time (the only notable exception being file addresses that generate file address children UNLESS we have a live process) Updated help text for summary-string Fixed an issue in STL formatters where std::stlcontainer::iterator would match the container's synthetic children providers Edited the syntax and help for some commands to have proper argument types llvm-svn: 139160
2011-09-07 03:20:51 +08:00
}
SBValue
SBValue::GetChildAtIndex (uint32_t idx)
{
const bool can_create_synthetic = false;
lldb::DynamicValueType use_dynamic = eNoDynamicValues;
lldb::ValueObjectSP value_sp(GetSP());
if (value_sp)
{
TargetSP target_sp(value_sp->GetTargetSP());
if (target_sp)
use_dynamic = target_sp->GetPreferDynamicValue();
}
return GetChildAtIndex (idx, use_dynamic, can_create_synthetic);
}
SBValue
SBValue::GetChildAtIndex (uint32_t idx, lldb::DynamicValueType use_dynamic, bool can_create_synthetic)
{
lldb::ValueObjectSP child_sp;
LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
lldb::ValueObjectSP value_sp(GetSP());
if (value_sp)
{
ProcessSP process_sp(value_sp->GetProcessSP());
Process::StopLocker stop_locker;
if (process_sp && !stop_locker.TryLock(&process_sp->GetRunLock()))
{
if (log)
log->Printf ("SBValue(%p)::GetChildAtIndex() => error: process is running", value_sp.get());
}
else
{
TargetSP target_sp(value_sp->GetTargetSP());
if (target_sp)
{
Mutex::Locker api_locker (target_sp->GetAPIMutex());
const bool can_create = true;
child_sp = value_sp->GetChildAtIndex (idx, can_create);
if (can_create_synthetic && !child_sp)
{
if (value_sp->IsPointerType())
{
child_sp = value_sp->GetSyntheticArrayMemberFromPointer(idx, can_create);
}
else if (value_sp->IsArrayType())
{
child_sp = value_sp->GetSyntheticArrayMemberFromArray(idx, can_create);
}
}
if (child_sp)
{
if (use_dynamic != lldb::eNoDynamicValues)
{
lldb::ValueObjectSP dynamic_sp(child_sp->GetDynamicValue (use_dynamic));
if (dynamic_sp)
child_sp = dynamic_sp;
}
}
}
}
}
SBValue sb_value (child_sp);
if (log)
log->Printf ("SBValue(%p)::GetChildAtIndex (%u) => SBValue(%p)", value_sp.get(), idx, value_sp.get());
return sb_value;
}
uint32_t
SBValue::GetIndexOfChildWithName (const char *name)
{
uint32_t idx = UINT32_MAX;
lldb::ValueObjectSP value_sp(GetSP());
if (value_sp)
{
TargetSP target_sp(value_sp->GetTargetSP());
if (target_sp)
{
Mutex::Locker api_locker (target_sp->GetAPIMutex());
idx = value_sp->GetIndexOfChildWithName (ConstString(name));
}
}
LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
if (log)
{
if (idx == UINT32_MAX)
log->Printf ("SBValue(%p)::GetIndexOfChildWithName (name=\"%s\") => NOT FOUND", value_sp.get(), name);
else
log->Printf ("SBValue(%p)::GetIndexOfChildWithName (name=\"%s\") => %u", value_sp.get(), name, idx);
}
return idx;
}
SBValue
SBValue::GetChildMemberWithName (const char *name)
{
lldb::ValueObjectSP value_sp(GetSP());
if (value_sp)
{
lldb::DynamicValueType use_dynamic_value = eNoDynamicValues;
TargetSP target_sp(value_sp->GetTargetSP());
if (target_sp)
{
Mutex::Locker api_locker (target_sp->GetAPIMutex());
use_dynamic_value = target_sp->GetPreferDynamicValue();
}
return GetChildMemberWithName (name, use_dynamic_value);
}
return SBValue();
}
SBValue
SBValue::GetChildMemberWithName (const char *name, lldb::DynamicValueType use_dynamic_value)
{
lldb::ValueObjectSP child_sp;
const ConstString str_name (name);
LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
lldb::ValueObjectSP value_sp(GetSP());
if (value_sp)
{
ProcessSP process_sp(value_sp->GetProcessSP());
Process::StopLocker stop_locker;
if (process_sp && !stop_locker.TryLock(&process_sp->GetRunLock()))
{
if (log)
log->Printf ("SBValue(%p)::GetChildMemberWithName() => error: process is running", value_sp.get());
}
else
{
TargetSP target_sp(value_sp->GetTargetSP());
if (target_sp)
{
Mutex::Locker api_locker (target_sp->GetAPIMutex());
child_sp = value_sp->GetChildMemberWithName (str_name, true);
if (use_dynamic_value != lldb::eNoDynamicValues)
{
if (child_sp)
{
lldb::ValueObjectSP dynamic_sp = child_sp->GetDynamicValue (use_dynamic_value);
if (dynamic_sp)
child_sp = dynamic_sp;
}
}
}
}
}
SBValue sb_value (child_sp);
if (log)
log->Printf ("SBValue(%p)::GetChildMemberWithName (name=\"%s\") => SBValue(%p)", value_sp.get(), name, value_sp.get());
return sb_value;
}
lldb::SBValue
SBValue::GetDynamicValue (lldb::DynamicValueType use_dynamic)
{
lldb::ValueObjectSP value_sp(GetSP());
if (value_sp)
{
ProcessSP process_sp(value_sp->GetProcessSP());
Process::StopLocker stop_locker;
if (process_sp && !stop_locker.TryLock(&process_sp->GetRunLock()))
{
LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
if (log)
log->Printf ("SBValue(%p)::GetDynamicValue() => error: process is running", value_sp.get());
}
else
{
TargetSP target_sp(value_sp->GetTargetSP());
if (target_sp)
{
Mutex::Locker api_locker (target_sp->GetAPIMutex());
return SBValue (value_sp->GetDynamicValue(use_dynamic));
}
}
}
return SBValue();
}
lldb::SBValue
SBValue::GetStaticValue ()
{
lldb::ValueObjectSP value_sp(GetSP());
if (value_sp)
{
TargetSP target_sp(value_sp->GetTargetSP());
if (target_sp)
{
Mutex::Locker api_locker (target_sp->GetAPIMutex());
return SBValue(value_sp->GetStaticValue());
}
}
return SBValue();
}
lldb::SBValue
SBValue::GetNonSyntheticValue ()
{
SBValue sb_value;
lldb::ValueObjectSP value_sp(GetSP());
if (value_sp)
{
if (value_sp->IsSynthetic())
{
TargetSP target_sp(value_sp->GetTargetSP());
if (target_sp)
{
Mutex::Locker api_locker (target_sp->GetAPIMutex());
// deliberately breaking the rules here to optimize the case where we DO NOT want
// the synthetic value to be returned to the user - if we did not do this, we would have to tell
// the target to suppress the synthetic value, and then return the flag to its original value
if (value_sp->GetNonSyntheticValue())
sb_value.m_opaque_sp = value_sp->GetNonSyntheticValue();
}
}
}
return sb_value;
}
bool
SBValue::IsDynamic()
{
lldb::ValueObjectSP value_sp(GetSP());
if (value_sp)
{
TargetSP target_sp(value_sp->GetTargetSP());
if (target_sp)
{
Mutex::Locker api_locker (target_sp->GetAPIMutex());
return value_sp->IsDynamic();
}
}
return false;
}
lldb::SBValue
SBValue::GetValueForExpressionPath(const char* expr_path)
{
LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
lldb::ValueObjectSP child_sp;
lldb::ValueObjectSP value_sp(GetSP());
if (value_sp)
{
ProcessSP process_sp(value_sp->GetProcessSP());
Process::StopLocker stop_locker;
if (process_sp && !stop_locker.TryLock(&process_sp->GetRunLock()))
{
if (log)
log->Printf ("SBValue(%p)::GetValueForExpressionPath() => error: process is running", value_sp.get());
}
else
{
TargetSP target_sp(value_sp->GetTargetSP());
if (target_sp)
{
Mutex::Locker api_locker (target_sp->GetAPIMutex());
// using default values for all the fancy options, just do it if you can
child_sp = value_sp->GetValueForExpressionPath(expr_path);
}
}
}
SBValue sb_value (child_sp);
if (log)
log->Printf ("SBValue(%p)::GetValueForExpressionPath (expr_path=\"%s\") => SBValue(%p)", value_sp.get(), expr_path, value_sp.get());
return sb_value;
}
int64_t
SBValue::GetValueAsSigned(SBError& error, int64_t fail_value)
{
error.Clear();
lldb::ValueObjectSP value_sp(GetSP());
if (value_sp)
{
ProcessSP process_sp(value_sp->GetProcessSP());
Process::StopLocker stop_locker;
if (process_sp && !stop_locker.TryLock(&process_sp->GetRunLock()))
{
LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
if (log)
log->Printf ("SBValue(%p)::GetValueAsSigned() => error: process is running", value_sp.get());
error.SetErrorString("process is running");
}
else
{
TargetSP target_sp(value_sp->GetTargetSP());
if (target_sp)
{
Mutex::Locker api_locker (target_sp->GetAPIMutex());
Scalar scalar;
if (value_sp->ResolveValue (scalar))
return scalar.GetRawBits64(fail_value);
else
error.SetErrorString("could not get value");
}
else
error.SetErrorString("could not get target");
}
}
error.SetErrorString("invalid SBValue");
return fail_value;
}
uint64_t
SBValue::GetValueAsUnsigned(SBError& error, uint64_t fail_value)
{
error.Clear();
lldb::ValueObjectSP value_sp(GetSP());
if (value_sp)
{
ProcessSP process_sp(value_sp->GetProcessSP());
Process::StopLocker stop_locker;
if (process_sp && !stop_locker.TryLock(&process_sp->GetRunLock()))
{
LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
if (log)
log->Printf ("SBValue(%p)::GetValueAsUnsigned() => error: process is running", value_sp.get());
error.SetErrorString("process is running");
}
else
{
TargetSP target_sp(value_sp->GetTargetSP());
if (target_sp)
{
Mutex::Locker api_locker (target_sp->GetAPIMutex());
Scalar scalar;
if (value_sp->ResolveValue (scalar))
return scalar.GetRawBits64(fail_value);
else
error.SetErrorString("could not get value");
}
else
error.SetErrorString("could not get target");
}
}
error.SetErrorString("invalid SBValue");
return fail_value;
}
int64_t
SBValue::GetValueAsSigned(int64_t fail_value)
{
lldb::ValueObjectSP value_sp(GetSP());
if (value_sp)
{
ProcessSP process_sp(value_sp->GetProcessSP());
Process::StopLocker stop_locker;
if (process_sp && !stop_locker.TryLock(&process_sp->GetRunLock()))
{
LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
if (log)
log->Printf ("SBValue(%p)::GetValueAsSigned() => error: process is running", value_sp.get());
}
else
{
TargetSP target_sp(value_sp->GetTargetSP());
if (target_sp)
{
Mutex::Locker api_locker (target_sp->GetAPIMutex());
Scalar scalar;
if (value_sp->ResolveValue (scalar))
return scalar.GetRawBits64(fail_value);
}
}
}
return fail_value;
}
uint64_t
SBValue::GetValueAsUnsigned(uint64_t fail_value)
{
lldb::ValueObjectSP value_sp(GetSP());
if (value_sp)
{
ProcessSP process_sp(value_sp->GetProcessSP());
Process::StopLocker stop_locker;
if (process_sp && !stop_locker.TryLock(&process_sp->GetRunLock()))
{
LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
if (log)
log->Printf ("SBValue(%p)::GetValueAsUnsigned() => error: process is running", value_sp.get());
}
else
{
TargetSP target_sp(value_sp->GetTargetSP());
if (target_sp)
{
Mutex::Locker api_locker (target_sp->GetAPIMutex());
Scalar scalar;
if (value_sp->ResolveValue (scalar))
return scalar.GetRawBits64(fail_value);
}
}
}
return fail_value;
}
uint32_t
SBValue::GetNumChildren ()
{
uint32_t num_children = 0;
LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
lldb::ValueObjectSP value_sp(GetSP());
if (value_sp)
{
ProcessSP process_sp(value_sp->GetProcessSP());
Process::StopLocker stop_locker;
if (process_sp && !stop_locker.TryLock(&process_sp->GetRunLock()))
{
if (log)
log->Printf ("SBValue(%p)::GetNumChildren() => error: process is running", value_sp.get());
}
else
{
TargetSP target_sp(value_sp->GetTargetSP());
if (target_sp)
{
Mutex::Locker api_locker (target_sp->GetAPIMutex());
num_children = value_sp->GetNumChildren();
}
}
}
if (log)
log->Printf ("SBValue(%p)::GetNumChildren () => %u", value_sp.get(), num_children);
return num_children;
}
SBValue
SBValue::Dereference ()
{
SBValue sb_value;
lldb::ValueObjectSP value_sp(GetSP());
if (value_sp)
{
TargetSP target_sp(value_sp->GetTargetSP());
if (target_sp)
{
Mutex::Locker api_locker (target_sp->GetAPIMutex());
Error error;
sb_value = value_sp->Dereference (error);
}
}
LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
if (log)
log->Printf ("SBValue(%p)::Dereference () => SBValue(%p)", value_sp.get(), value_sp.get());
return sb_value;
}
bool
SBValue::TypeIsPointerType ()
{
bool is_ptr_type = false;
lldb::ValueObjectSP value_sp(GetSP());
if (value_sp)
{
TargetSP target_sp(value_sp->GetTargetSP());
if (target_sp)
{
Mutex::Locker api_locker (target_sp->GetAPIMutex());
is_ptr_type = value_sp->IsPointerType();
}
}
LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
if (log)
log->Printf ("SBValue(%p)::TypeIsPointerType () => %i", value_sp.get(), is_ptr_type);
return is_ptr_type;
}
void *
SBValue::GetOpaqueType()
{
lldb::ValueObjectSP value_sp(GetSP());
if (value_sp)
{
TargetSP target_sp(value_sp->GetTargetSP());
if (target_sp)
{
Mutex::Locker api_locker (target_sp->GetAPIMutex());
return value_sp->GetClangType();
}
}
return NULL;
}
lldb::SBTarget
SBValue::GetTarget()
{
SBFrame is now threadsafe using some extra tricks. One issue is that stack frames might go away (the object itself, not the actual logical frame) when we are single stepping due to the way we currently sometimes end up flushing frames when stepping in/out/over. They later will come back to life represented by another object yet they have the same StackID. Now when you get a lldb::SBFrame object, it will track the frame it is initialized with until the thread goes away or the StackID no longer exists in the stack for the thread it was created on. It uses a weak_ptr to both the frame and thread and also stores the StackID. These three items allow us to determine when the stack frame object has gone away (the weak_ptr will be NULL) and allows us to find the correct frame again. In our test suite we had such cases where we were just getting lucky when something like this happened: 1 - stop at breakpoint 2 - get first frame in thread where we stopped 3 - run an expression that causes the program to JIT and run code 4 - run more expressions on the frame from step 2 which was very very luckily still around inside a shared pointer, yet, not part of the current thread (a new stack frame object had appeared with the same stack ID and depth). We now avoid all such issues and properly keep up to date, or we start returning errors when the frame doesn't exist and always responds with invalid answers. Also fixed the UserSettingsController (not going to rewrite this just yet) so that it doesn't crash on shutdown. Using weak_ptr's came in real handy to track when the master controller has already gone away and this allowed me to pull out the previous NotifyOwnerIsShuttingDown() patch as it is no longer needed. llvm-svn: 149231
2012-01-30 15:41:31 +08:00
SBTarget sb_target;
TargetSP target_sp;
lldb::ValueObjectSP value_sp(GetSP());
if (value_sp)
{
target_sp = value_sp->GetTargetSP();
SBFrame is now threadsafe using some extra tricks. One issue is that stack frames might go away (the object itself, not the actual logical frame) when we are single stepping due to the way we currently sometimes end up flushing frames when stepping in/out/over. They later will come back to life represented by another object yet they have the same StackID. Now when you get a lldb::SBFrame object, it will track the frame it is initialized with until the thread goes away or the StackID no longer exists in the stack for the thread it was created on. It uses a weak_ptr to both the frame and thread and also stores the StackID. These three items allow us to determine when the stack frame object has gone away (the weak_ptr will be NULL) and allows us to find the correct frame again. In our test suite we had such cases where we were just getting lucky when something like this happened: 1 - stop at breakpoint 2 - get first frame in thread where we stopped 3 - run an expression that causes the program to JIT and run code 4 - run more expressions on the frame from step 2 which was very very luckily still around inside a shared pointer, yet, not part of the current thread (a new stack frame object had appeared with the same stack ID and depth). We now avoid all such issues and properly keep up to date, or we start returning errors when the frame doesn't exist and always responds with invalid answers. Also fixed the UserSettingsController (not going to rewrite this just yet) so that it doesn't crash on shutdown. Using weak_ptr's came in real handy to track when the master controller has already gone away and this allowed me to pull out the previous NotifyOwnerIsShuttingDown() patch as it is no longer needed. llvm-svn: 149231
2012-01-30 15:41:31 +08:00
sb_target.SetSP (target_sp);
}
LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
if (log)
{
SBFrame is now threadsafe using some extra tricks. One issue is that stack frames might go away (the object itself, not the actual logical frame) when we are single stepping due to the way we currently sometimes end up flushing frames when stepping in/out/over. They later will come back to life represented by another object yet they have the same StackID. Now when you get a lldb::SBFrame object, it will track the frame it is initialized with until the thread goes away or the StackID no longer exists in the stack for the thread it was created on. It uses a weak_ptr to both the frame and thread and also stores the StackID. These three items allow us to determine when the stack frame object has gone away (the weak_ptr will be NULL) and allows us to find the correct frame again. In our test suite we had such cases where we were just getting lucky when something like this happened: 1 - stop at breakpoint 2 - get first frame in thread where we stopped 3 - run an expression that causes the program to JIT and run code 4 - run more expressions on the frame from step 2 which was very very luckily still around inside a shared pointer, yet, not part of the current thread (a new stack frame object had appeared with the same stack ID and depth). We now avoid all such issues and properly keep up to date, or we start returning errors when the frame doesn't exist and always responds with invalid answers. Also fixed the UserSettingsController (not going to rewrite this just yet) so that it doesn't crash on shutdown. Using weak_ptr's came in real handy to track when the master controller has already gone away and this allowed me to pull out the previous NotifyOwnerIsShuttingDown() patch as it is no longer needed. llvm-svn: 149231
2012-01-30 15:41:31 +08:00
if (target_sp.get() == NULL)
log->Printf ("SBValue(%p)::GetTarget () => NULL", value_sp.get());
else
log->Printf ("SBValue(%p)::GetTarget () => %p", value_sp.get(), target_sp.get());
}
SBFrame is now threadsafe using some extra tricks. One issue is that stack frames might go away (the object itself, not the actual logical frame) when we are single stepping due to the way we currently sometimes end up flushing frames when stepping in/out/over. They later will come back to life represented by another object yet they have the same StackID. Now when you get a lldb::SBFrame object, it will track the frame it is initialized with until the thread goes away or the StackID no longer exists in the stack for the thread it was created on. It uses a weak_ptr to both the frame and thread and also stores the StackID. These three items allow us to determine when the stack frame object has gone away (the weak_ptr will be NULL) and allows us to find the correct frame again. In our test suite we had such cases where we were just getting lucky when something like this happened: 1 - stop at breakpoint 2 - get first frame in thread where we stopped 3 - run an expression that causes the program to JIT and run code 4 - run more expressions on the frame from step 2 which was very very luckily still around inside a shared pointer, yet, not part of the current thread (a new stack frame object had appeared with the same stack ID and depth). We now avoid all such issues and properly keep up to date, or we start returning errors when the frame doesn't exist and always responds with invalid answers. Also fixed the UserSettingsController (not going to rewrite this just yet) so that it doesn't crash on shutdown. Using weak_ptr's came in real handy to track when the master controller has already gone away and this allowed me to pull out the previous NotifyOwnerIsShuttingDown() patch as it is no longer needed. llvm-svn: 149231
2012-01-30 15:41:31 +08:00
return sb_target;
}
lldb::SBProcess
SBValue::GetProcess()
{
SBFrame is now threadsafe using some extra tricks. One issue is that stack frames might go away (the object itself, not the actual logical frame) when we are single stepping due to the way we currently sometimes end up flushing frames when stepping in/out/over. They later will come back to life represented by another object yet they have the same StackID. Now when you get a lldb::SBFrame object, it will track the frame it is initialized with until the thread goes away or the StackID no longer exists in the stack for the thread it was created on. It uses a weak_ptr to both the frame and thread and also stores the StackID. These three items allow us to determine when the stack frame object has gone away (the weak_ptr will be NULL) and allows us to find the correct frame again. In our test suite we had such cases where we were just getting lucky when something like this happened: 1 - stop at breakpoint 2 - get first frame in thread where we stopped 3 - run an expression that causes the program to JIT and run code 4 - run more expressions on the frame from step 2 which was very very luckily still around inside a shared pointer, yet, not part of the current thread (a new stack frame object had appeared with the same stack ID and depth). We now avoid all such issues and properly keep up to date, or we start returning errors when the frame doesn't exist and always responds with invalid answers. Also fixed the UserSettingsController (not going to rewrite this just yet) so that it doesn't crash on shutdown. Using weak_ptr's came in real handy to track when the master controller has already gone away and this allowed me to pull out the previous NotifyOwnerIsShuttingDown() patch as it is no longer needed. llvm-svn: 149231
2012-01-30 15:41:31 +08:00
SBProcess sb_process;
ProcessSP process_sp;
lldb::ValueObjectSP value_sp(GetSP());
if (value_sp)
{
process_sp = value_sp->GetProcessSP();
SBFrame is now threadsafe using some extra tricks. One issue is that stack frames might go away (the object itself, not the actual logical frame) when we are single stepping due to the way we currently sometimes end up flushing frames when stepping in/out/over. They later will come back to life represented by another object yet they have the same StackID. Now when you get a lldb::SBFrame object, it will track the frame it is initialized with until the thread goes away or the StackID no longer exists in the stack for the thread it was created on. It uses a weak_ptr to both the frame and thread and also stores the StackID. These three items allow us to determine when the stack frame object has gone away (the weak_ptr will be NULL) and allows us to find the correct frame again. In our test suite we had such cases where we were just getting lucky when something like this happened: 1 - stop at breakpoint 2 - get first frame in thread where we stopped 3 - run an expression that causes the program to JIT and run code 4 - run more expressions on the frame from step 2 which was very very luckily still around inside a shared pointer, yet, not part of the current thread (a new stack frame object had appeared with the same stack ID and depth). We now avoid all such issues and properly keep up to date, or we start returning errors when the frame doesn't exist and always responds with invalid answers. Also fixed the UserSettingsController (not going to rewrite this just yet) so that it doesn't crash on shutdown. Using weak_ptr's came in real handy to track when the master controller has already gone away and this allowed me to pull out the previous NotifyOwnerIsShuttingDown() patch as it is no longer needed. llvm-svn: 149231
2012-01-30 15:41:31 +08:00
if (process_sp)
sb_process.SetSP (process_sp);
}
LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
if (log)
{
SBFrame is now threadsafe using some extra tricks. One issue is that stack frames might go away (the object itself, not the actual logical frame) when we are single stepping due to the way we currently sometimes end up flushing frames when stepping in/out/over. They later will come back to life represented by another object yet they have the same StackID. Now when you get a lldb::SBFrame object, it will track the frame it is initialized with until the thread goes away or the StackID no longer exists in the stack for the thread it was created on. It uses a weak_ptr to both the frame and thread and also stores the StackID. These three items allow us to determine when the stack frame object has gone away (the weak_ptr will be NULL) and allows us to find the correct frame again. In our test suite we had such cases where we were just getting lucky when something like this happened: 1 - stop at breakpoint 2 - get first frame in thread where we stopped 3 - run an expression that causes the program to JIT and run code 4 - run more expressions on the frame from step 2 which was very very luckily still around inside a shared pointer, yet, not part of the current thread (a new stack frame object had appeared with the same stack ID and depth). We now avoid all such issues and properly keep up to date, or we start returning errors when the frame doesn't exist and always responds with invalid answers. Also fixed the UserSettingsController (not going to rewrite this just yet) so that it doesn't crash on shutdown. Using weak_ptr's came in real handy to track when the master controller has already gone away and this allowed me to pull out the previous NotifyOwnerIsShuttingDown() patch as it is no longer needed. llvm-svn: 149231
2012-01-30 15:41:31 +08:00
if (process_sp.get() == NULL)
log->Printf ("SBValue(%p)::GetProcess () => NULL", value_sp.get());
else
log->Printf ("SBValue(%p)::GetProcess () => %p", value_sp.get(), process_sp.get());
}
SBFrame is now threadsafe using some extra tricks. One issue is that stack frames might go away (the object itself, not the actual logical frame) when we are single stepping due to the way we currently sometimes end up flushing frames when stepping in/out/over. They later will come back to life represented by another object yet they have the same StackID. Now when you get a lldb::SBFrame object, it will track the frame it is initialized with until the thread goes away or the StackID no longer exists in the stack for the thread it was created on. It uses a weak_ptr to both the frame and thread and also stores the StackID. These three items allow us to determine when the stack frame object has gone away (the weak_ptr will be NULL) and allows us to find the correct frame again. In our test suite we had such cases where we were just getting lucky when something like this happened: 1 - stop at breakpoint 2 - get first frame in thread where we stopped 3 - run an expression that causes the program to JIT and run code 4 - run more expressions on the frame from step 2 which was very very luckily still around inside a shared pointer, yet, not part of the current thread (a new stack frame object had appeared with the same stack ID and depth). We now avoid all such issues and properly keep up to date, or we start returning errors when the frame doesn't exist and always responds with invalid answers. Also fixed the UserSettingsController (not going to rewrite this just yet) so that it doesn't crash on shutdown. Using weak_ptr's came in real handy to track when the master controller has already gone away and this allowed me to pull out the previous NotifyOwnerIsShuttingDown() patch as it is no longer needed. llvm-svn: 149231
2012-01-30 15:41:31 +08:00
return sb_process;
}
lldb::SBThread
SBValue::GetThread()
{
Removed the "lldb-forward-rtti.h" header file as it was designed to contain all RTTI types, and since we don't use RTTI anymore since clang and llvm don't we don't really need this header file. All shared pointer definitions have been moved into "lldb-forward.h". Defined std::tr1::weak_ptr definitions for all of the types that inherit from enable_shared_from_this() in "lldb-forward.h" in preparation for thread hardening our public API. The first in the thread hardening check-ins. First we start with SBThread. We have issues in our lldb::SB API right now where if you have one object that is being used by two threads we have a race condition. Consider the following code: 1 int 2 SBThread::SomeFunction() 3 { 4 int result = -1; 5 if (m_opaque_sp) 6 { 7 result = m_opaque_sp->DoSomething(); 8 } 9 return result; 10 } And now this happens: Thread 1 enters any SBThread function and checks its m_opaque_sp and is about to execute the code on line 7 but hasn't yet Thread 2 gets to run and class sb_thread.Clear() which calls m_opaque_sp.clear() and clears the contents of the shared pointer member Thread 1 now crashes when it resumes. The solution is to use std::tr1::weak_ptr. Now the SBThread class contains a lldb::ThreadWP (weak pointer to our lldb_private::Thread class) and this function would look like: 1 int 2 SBThread::SomeFunction() 3 { 4 int result = -1; 5 ThreadSP thread_sp(m_opaque_wp.lock()); 6 if (thread_sp) 7 { 8 result = m_opaque_sp->DoSomething(); 9 } 10 return result; 11 } Now we have a solid thread safe API where we get a local copy of our thread shared pointer from our weak_ptr and then we are guaranteed it can't go away during our function. So lldb::SBThread has been thread hardened, more checkins to follow shortly. llvm-svn: 149218
2012-01-30 10:53:15 +08:00
SBThread sb_thread;
ThreadSP thread_sp;
lldb::ValueObjectSP value_sp(GetSP());
if (value_sp)
{
thread_sp = value_sp->GetThreadSP();
sb_thread.SetThread(thread_sp);
}
LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
if (log)
{
Removed the "lldb-forward-rtti.h" header file as it was designed to contain all RTTI types, and since we don't use RTTI anymore since clang and llvm don't we don't really need this header file. All shared pointer definitions have been moved into "lldb-forward.h". Defined std::tr1::weak_ptr definitions for all of the types that inherit from enable_shared_from_this() in "lldb-forward.h" in preparation for thread hardening our public API. The first in the thread hardening check-ins. First we start with SBThread. We have issues in our lldb::SB API right now where if you have one object that is being used by two threads we have a race condition. Consider the following code: 1 int 2 SBThread::SomeFunction() 3 { 4 int result = -1; 5 if (m_opaque_sp) 6 { 7 result = m_opaque_sp->DoSomething(); 8 } 9 return result; 10 } And now this happens: Thread 1 enters any SBThread function and checks its m_opaque_sp and is about to execute the code on line 7 but hasn't yet Thread 2 gets to run and class sb_thread.Clear() which calls m_opaque_sp.clear() and clears the contents of the shared pointer member Thread 1 now crashes when it resumes. The solution is to use std::tr1::weak_ptr. Now the SBThread class contains a lldb::ThreadWP (weak pointer to our lldb_private::Thread class) and this function would look like: 1 int 2 SBThread::SomeFunction() 3 { 4 int result = -1; 5 ThreadSP thread_sp(m_opaque_wp.lock()); 6 if (thread_sp) 7 { 8 result = m_opaque_sp->DoSomething(); 9 } 10 return result; 11 } Now we have a solid thread safe API where we get a local copy of our thread shared pointer from our weak_ptr and then we are guaranteed it can't go away during our function. So lldb::SBThread has been thread hardened, more checkins to follow shortly. llvm-svn: 149218
2012-01-30 10:53:15 +08:00
if (thread_sp.get() == NULL)
log->Printf ("SBValue(%p)::GetThread () => NULL", value_sp.get());
else
log->Printf ("SBValue(%p)::GetThread () => %p", value_sp.get(), thread_sp.get());
}
Removed the "lldb-forward-rtti.h" header file as it was designed to contain all RTTI types, and since we don't use RTTI anymore since clang and llvm don't we don't really need this header file. All shared pointer definitions have been moved into "lldb-forward.h". Defined std::tr1::weak_ptr definitions for all of the types that inherit from enable_shared_from_this() in "lldb-forward.h" in preparation for thread hardening our public API. The first in the thread hardening check-ins. First we start with SBThread. We have issues in our lldb::SB API right now where if you have one object that is being used by two threads we have a race condition. Consider the following code: 1 int 2 SBThread::SomeFunction() 3 { 4 int result = -1; 5 if (m_opaque_sp) 6 { 7 result = m_opaque_sp->DoSomething(); 8 } 9 return result; 10 } And now this happens: Thread 1 enters any SBThread function and checks its m_opaque_sp and is about to execute the code on line 7 but hasn't yet Thread 2 gets to run and class sb_thread.Clear() which calls m_opaque_sp.clear() and clears the contents of the shared pointer member Thread 1 now crashes when it resumes. The solution is to use std::tr1::weak_ptr. Now the SBThread class contains a lldb::ThreadWP (weak pointer to our lldb_private::Thread class) and this function would look like: 1 int 2 SBThread::SomeFunction() 3 { 4 int result = -1; 5 ThreadSP thread_sp(m_opaque_wp.lock()); 6 if (thread_sp) 7 { 8 result = m_opaque_sp->DoSomething(); 9 } 10 return result; 11 } Now we have a solid thread safe API where we get a local copy of our thread shared pointer from our weak_ptr and then we are guaranteed it can't go away during our function. So lldb::SBThread has been thread hardened, more checkins to follow shortly. llvm-svn: 149218
2012-01-30 10:53:15 +08:00
return sb_thread;
}
lldb::SBFrame
SBValue::GetFrame()
{
SBFrame is now threadsafe using some extra tricks. One issue is that stack frames might go away (the object itself, not the actual logical frame) when we are single stepping due to the way we currently sometimes end up flushing frames when stepping in/out/over. They later will come back to life represented by another object yet they have the same StackID. Now when you get a lldb::SBFrame object, it will track the frame it is initialized with until the thread goes away or the StackID no longer exists in the stack for the thread it was created on. It uses a weak_ptr to both the frame and thread and also stores the StackID. These three items allow us to determine when the stack frame object has gone away (the weak_ptr will be NULL) and allows us to find the correct frame again. In our test suite we had such cases where we were just getting lucky when something like this happened: 1 - stop at breakpoint 2 - get first frame in thread where we stopped 3 - run an expression that causes the program to JIT and run code 4 - run more expressions on the frame from step 2 which was very very luckily still around inside a shared pointer, yet, not part of the current thread (a new stack frame object had appeared with the same stack ID and depth). We now avoid all such issues and properly keep up to date, or we start returning errors when the frame doesn't exist and always responds with invalid answers. Also fixed the UserSettingsController (not going to rewrite this just yet) so that it doesn't crash on shutdown. Using weak_ptr's came in real handy to track when the master controller has already gone away and this allowed me to pull out the previous NotifyOwnerIsShuttingDown() patch as it is no longer needed. llvm-svn: 149231
2012-01-30 15:41:31 +08:00
SBFrame sb_frame;
StackFrameSP frame_sp;
lldb::ValueObjectSP value_sp(GetSP());
if (value_sp)
{
frame_sp = value_sp->GetFrameSP();
sb_frame.SetFrameSP (frame_sp);
}
LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
if (log)
{
SBFrame is now threadsafe using some extra tricks. One issue is that stack frames might go away (the object itself, not the actual logical frame) when we are single stepping due to the way we currently sometimes end up flushing frames when stepping in/out/over. They later will come back to life represented by another object yet they have the same StackID. Now when you get a lldb::SBFrame object, it will track the frame it is initialized with until the thread goes away or the StackID no longer exists in the stack for the thread it was created on. It uses a weak_ptr to both the frame and thread and also stores the StackID. These three items allow us to determine when the stack frame object has gone away (the weak_ptr will be NULL) and allows us to find the correct frame again. In our test suite we had such cases where we were just getting lucky when something like this happened: 1 - stop at breakpoint 2 - get first frame in thread where we stopped 3 - run an expression that causes the program to JIT and run code 4 - run more expressions on the frame from step 2 which was very very luckily still around inside a shared pointer, yet, not part of the current thread (a new stack frame object had appeared with the same stack ID and depth). We now avoid all such issues and properly keep up to date, or we start returning errors when the frame doesn't exist and always responds with invalid answers. Also fixed the UserSettingsController (not going to rewrite this just yet) so that it doesn't crash on shutdown. Using weak_ptr's came in real handy to track when the master controller has already gone away and this allowed me to pull out the previous NotifyOwnerIsShuttingDown() patch as it is no longer needed. llvm-svn: 149231
2012-01-30 15:41:31 +08:00
if (frame_sp.get() == NULL)
log->Printf ("SBValue(%p)::GetFrame () => NULL", value_sp.get());
else
log->Printf ("SBValue(%p)::GetFrame () => %p", value_sp.get(), frame_sp.get());
}
SBFrame is now threadsafe using some extra tricks. One issue is that stack frames might go away (the object itself, not the actual logical frame) when we are single stepping due to the way we currently sometimes end up flushing frames when stepping in/out/over. They later will come back to life represented by another object yet they have the same StackID. Now when you get a lldb::SBFrame object, it will track the frame it is initialized with until the thread goes away or the StackID no longer exists in the stack for the thread it was created on. It uses a weak_ptr to both the frame and thread and also stores the StackID. These three items allow us to determine when the stack frame object has gone away (the weak_ptr will be NULL) and allows us to find the correct frame again. In our test suite we had such cases where we were just getting lucky when something like this happened: 1 - stop at breakpoint 2 - get first frame in thread where we stopped 3 - run an expression that causes the program to JIT and run code 4 - run more expressions on the frame from step 2 which was very very luckily still around inside a shared pointer, yet, not part of the current thread (a new stack frame object had appeared with the same stack ID and depth). We now avoid all such issues and properly keep up to date, or we start returning errors when the frame doesn't exist and always responds with invalid answers. Also fixed the UserSettingsController (not going to rewrite this just yet) so that it doesn't crash on shutdown. Using weak_ptr's came in real handy to track when the master controller has already gone away and this allowed me to pull out the previous NotifyOwnerIsShuttingDown() patch as it is no longer needed. llvm-svn: 149231
2012-01-30 15:41:31 +08:00
return sb_frame;
}
lldb::ValueObjectSP
SBValue::GetSP () const
{
return m_opaque_sp;
}
void
SBValue::SetSP (const lldb::ValueObjectSP &sp)
{
m_opaque_sp = sp;
if (IsValid() && m_opaque_sp->HasSyntheticValue())
m_opaque_sp = m_opaque_sp->GetSyntheticValue();
}
bool
SBValue::GetExpressionPath (SBStream &description)
{
lldb::ValueObjectSP value_sp(GetSP());
if (value_sp)
{
value_sp->GetExpressionPath (description.ref(), false);
A few of the issue I have been trying to track down and fix have been due to the way LLDB lazily gets complete definitions for types within the debug info. When we run across a class/struct/union definition in the DWARF, we will only parse the full definition if we need to. This works fine for top level types that are assigned directly to variables and arguments, but when we have a variable with a class, lets say "A" for this example, that has a member: "B *m_b". Initially we don't need to hunt down a definition for this class unless we are ever asked to do something with it ("expr m_b->getDecl()" for example). With my previous approach to lazy type completion, we would be able to take a "A *a" and get a complete type for it, but we wouldn't be able to then do an "a->m_b->getDecl()" unless we always expanded all types within a class prior to handing out the type. Expanding everything is very costly and it would be great if there were a better way. A few months ago I worked with the llvm/clang folks to have the ExternalASTSource class be able to complete classes if there weren't completed yet: class ExternalASTSource { .... virtual void CompleteType (clang::TagDecl *Tag); virtual void CompleteType (clang::ObjCInterfaceDecl *Class); }; This was great, because we can now have the class that is producing the AST (SymbolFileDWARF and SymbolFileDWARFDebugMap) sign up as external AST sources and the object that creates the forward declaration types can now also complete them anywhere within the clang type system. This patch makes a few major changes: - lldb_private::Module classes now own the AST context. Previously the TypeList objects did. - The DWARF parsers now sign up as an external AST sources so they can complete types. - All of the pure clang type system wrapper code we have in LLDB (ClangASTContext, ClangASTType, and more) can now be iterating through children of any type, and if a class/union/struct type (clang::RecordType or ObjC interface) is found that is incomplete, we can ask the AST to get the definition. - The SymbolFileDWARFDebugMap class now will create and use a single AST that all child SymbolFileDWARF classes will share (much like what happens when we have a complete linked DWARF for an executable). We will need to modify some of the ClangUserExpression code to take more advantage of this completion ability in the near future. Meanwhile we should be better off now that we can be accessing any children of variables through pointers and always be able to resolve the clang type if needed. llvm-svn: 123613
2011-01-17 11:46:26 +08:00
return true;
}
return false;
}
bool
SBValue::GetExpressionPath (SBStream &description, bool qualify_cxx_base_classes)
{
lldb::ValueObjectSP value_sp(GetSP());
if (value_sp)
A few of the issue I have been trying to track down and fix have been due to the way LLDB lazily gets complete definitions for types within the debug info. When we run across a class/struct/union definition in the DWARF, we will only parse the full definition if we need to. This works fine for top level types that are assigned directly to variables and arguments, but when we have a variable with a class, lets say "A" for this example, that has a member: "B *m_b". Initially we don't need to hunt down a definition for this class unless we are ever asked to do something with it ("expr m_b->getDecl()" for example). With my previous approach to lazy type completion, we would be able to take a "A *a" and get a complete type for it, but we wouldn't be able to then do an "a->m_b->getDecl()" unless we always expanded all types within a class prior to handing out the type. Expanding everything is very costly and it would be great if there were a better way. A few months ago I worked with the llvm/clang folks to have the ExternalASTSource class be able to complete classes if there weren't completed yet: class ExternalASTSource { .... virtual void CompleteType (clang::TagDecl *Tag); virtual void CompleteType (clang::ObjCInterfaceDecl *Class); }; This was great, because we can now have the class that is producing the AST (SymbolFileDWARF and SymbolFileDWARFDebugMap) sign up as external AST sources and the object that creates the forward declaration types can now also complete them anywhere within the clang type system. This patch makes a few major changes: - lldb_private::Module classes now own the AST context. Previously the TypeList objects did. - The DWARF parsers now sign up as an external AST sources so they can complete types. - All of the pure clang type system wrapper code we have in LLDB (ClangASTContext, ClangASTType, and more) can now be iterating through children of any type, and if a class/union/struct type (clang::RecordType or ObjC interface) is found that is incomplete, we can ask the AST to get the definition. - The SymbolFileDWARFDebugMap class now will create and use a single AST that all child SymbolFileDWARF classes will share (much like what happens when we have a complete linked DWARF for an executable). We will need to modify some of the ClangUserExpression code to take more advantage of this completion ability in the near future. Meanwhile we should be better off now that we can be accessing any children of variables through pointers and always be able to resolve the clang type if needed. llvm-svn: 123613
2011-01-17 11:46:26 +08:00
{
value_sp->GetExpressionPath (description.ref(), qualify_cxx_base_classes);
return true;
}
return false;
}
bool
SBValue::GetDescription (SBStream &description)
{
Stream &strm = description.ref();
lldb::ValueObjectSP value_sp(GetSP());
if (value_sp)
{
ProcessSP process_sp(value_sp->GetProcessSP());
Process::StopLocker stop_locker;
if (process_sp && !stop_locker.TryLock(&process_sp->GetRunLock()))
{
LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
if (log)
log->Printf ("SBValue(%p)::GetDescription() => error: process is running", value_sp.get());
}
else
{
ValueObject::DumpValueObject (strm, value_sp.get());
}
}
else
strm.PutCString ("No value");
return true;
}
lldb::Format
SBValue::GetFormat ()
{
lldb::ValueObjectSP value_sp(GetSP());
if (value_sp)
return value_sp->GetFormat();
return eFormatDefault;
}
void
SBValue::SetFormat (lldb::Format format)
{
lldb::ValueObjectSP value_sp(GetSP());
if (value_sp)
value_sp->SetFormat(format);
}
lldb::SBValue
SBValue::AddressOf()
{
SBValue sb_value;
lldb::ValueObjectSP value_sp(GetSP());
if (value_sp)
{
TargetSP target_sp (value_sp->GetTargetSP());
if (target_sp)
{
Mutex::Locker api_locker (target_sp->GetAPIMutex());
Error error;
sb_value = value_sp->AddressOf (error);
}
}
LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
if (log)
log->Printf ("SBValue(%p)::GetPointerToObject () => SBValue(%p)", value_sp.get(), value_sp.get());
return sb_value;
2011-08-10 06:38:07 +08:00
}
Redesign of the interaction between Python and frozen objects: - introduced two new classes ValueObjectConstResultChild and ValueObjectConstResultImpl: the first one is a ValueObjectChild obtained from a ValueObjectConstResult, the second is a common implementation backend for VOCR and VOCRCh of method calls meant to read through pointers stored in frozen objects ; now such reads transparently move from host to target as required - as a consequence of the above, removed code that made target-memory copies of expression results in several places throughout LLDB, and also removed code that enabled to recognize an expression result VO as such - introduced a new GetPointeeData() method in ValueObject that lets you read a given amount of objects of type T from a VO representing a T* or T[], and doing dereferences transparently in private layer it returns a DataExtractor ; in public layer it returns an instance of a newly created lldb::SBData - as GetPointeeData() does the right thing for both frozen and non-frozen ValueObject's, reimplemented ReadPointedString() to use it en lieu of doing the raw read itself - introduced a new GetData() method in ValueObject that lets you get a copy of the data that backs the ValueObject (for pointers, this returns the address without any previous dereferencing steps ; for arrays it actually reads the whole chunk of memory) in public layer this returns an SBData, just like GetPointeeData() - introduced a new CreateValueFromData() method in SBValue that lets you create a new SBValue from a chunk of data wrapped in an SBData the limitation to remember for this kind of SBValue is that they have no address: extracting the address-of for these objects (with any of GetAddress(), GetLoadAddress() and AddressOf()) will return invalid values - added several tests to check that "p"-ing objects (STL classes, char* and char[]) will do the right thing Solved a bug where global pointers to global variables were not dereferenced correctly for display New target setting "max-string-summary-length" gives the maximum number of characters to show in a string when summarizing it, instead of the hardcoded 128 Solved a bug where the summary for char[] and char* would not be shown if the ValueObject's were dumped via the "p" command Removed m_pointers_point_to_load_addrs from ValueObject. Introduced a new m_address_type_of_children, which each ValueObject can set to tell the address type of any pointers and/or references it creates. In the current codebase, this is load address most of the time (the only notable exception being file addresses that generate file address children UNLESS we have a live process) Updated help text for summary-string Fixed an issue in STL formatters where std::stlcontainer::iterator would match the container's synthetic children providers Edited the syntax and help for some commands to have proper argument types llvm-svn: 139160
2011-09-07 03:20:51 +08:00
lldb::addr_t
SBValue::GetLoadAddress()
{
lldb::addr_t value = LLDB_INVALID_ADDRESS;
lldb::ValueObjectSP value_sp(GetSP());
if (value_sp)
Redesign of the interaction between Python and frozen objects: - introduced two new classes ValueObjectConstResultChild and ValueObjectConstResultImpl: the first one is a ValueObjectChild obtained from a ValueObjectConstResult, the second is a common implementation backend for VOCR and VOCRCh of method calls meant to read through pointers stored in frozen objects ; now such reads transparently move from host to target as required - as a consequence of the above, removed code that made target-memory copies of expression results in several places throughout LLDB, and also removed code that enabled to recognize an expression result VO as such - introduced a new GetPointeeData() method in ValueObject that lets you read a given amount of objects of type T from a VO representing a T* or T[], and doing dereferences transparently in private layer it returns a DataExtractor ; in public layer it returns an instance of a newly created lldb::SBData - as GetPointeeData() does the right thing for both frozen and non-frozen ValueObject's, reimplemented ReadPointedString() to use it en lieu of doing the raw read itself - introduced a new GetData() method in ValueObject that lets you get a copy of the data that backs the ValueObject (for pointers, this returns the address without any previous dereferencing steps ; for arrays it actually reads the whole chunk of memory) in public layer this returns an SBData, just like GetPointeeData() - introduced a new CreateValueFromData() method in SBValue that lets you create a new SBValue from a chunk of data wrapped in an SBData the limitation to remember for this kind of SBValue is that they have no address: extracting the address-of for these objects (with any of GetAddress(), GetLoadAddress() and AddressOf()) will return invalid values - added several tests to check that "p"-ing objects (STL classes, char* and char[]) will do the right thing Solved a bug where global pointers to global variables were not dereferenced correctly for display New target setting "max-string-summary-length" gives the maximum number of characters to show in a string when summarizing it, instead of the hardcoded 128 Solved a bug where the summary for char[] and char* would not be shown if the ValueObject's were dumped via the "p" command Removed m_pointers_point_to_load_addrs from ValueObject. Introduced a new m_address_type_of_children, which each ValueObject can set to tell the address type of any pointers and/or references it creates. In the current codebase, this is load address most of the time (the only notable exception being file addresses that generate file address children UNLESS we have a live process) Updated help text for summary-string Fixed an issue in STL formatters where std::stlcontainer::iterator would match the container's synthetic children providers Edited the syntax and help for some commands to have proper argument types llvm-svn: 139160
2011-09-07 03:20:51 +08:00
{
TargetSP target_sp (value_sp->GetTargetSP());
if (target_sp)
Redesign of the interaction between Python and frozen objects: - introduced two new classes ValueObjectConstResultChild and ValueObjectConstResultImpl: the first one is a ValueObjectChild obtained from a ValueObjectConstResult, the second is a common implementation backend for VOCR and VOCRCh of method calls meant to read through pointers stored in frozen objects ; now such reads transparently move from host to target as required - as a consequence of the above, removed code that made target-memory copies of expression results in several places throughout LLDB, and also removed code that enabled to recognize an expression result VO as such - introduced a new GetPointeeData() method in ValueObject that lets you read a given amount of objects of type T from a VO representing a T* or T[], and doing dereferences transparently in private layer it returns a DataExtractor ; in public layer it returns an instance of a newly created lldb::SBData - as GetPointeeData() does the right thing for both frozen and non-frozen ValueObject's, reimplemented ReadPointedString() to use it en lieu of doing the raw read itself - introduced a new GetData() method in ValueObject that lets you get a copy of the data that backs the ValueObject (for pointers, this returns the address without any previous dereferencing steps ; for arrays it actually reads the whole chunk of memory) in public layer this returns an SBData, just like GetPointeeData() - introduced a new CreateValueFromData() method in SBValue that lets you create a new SBValue from a chunk of data wrapped in an SBData the limitation to remember for this kind of SBValue is that they have no address: extracting the address-of for these objects (with any of GetAddress(), GetLoadAddress() and AddressOf()) will return invalid values - added several tests to check that "p"-ing objects (STL classes, char* and char[]) will do the right thing Solved a bug where global pointers to global variables were not dereferenced correctly for display New target setting "max-string-summary-length" gives the maximum number of characters to show in a string when summarizing it, instead of the hardcoded 128 Solved a bug where the summary for char[] and char* would not be shown if the ValueObject's were dumped via the "p" command Removed m_pointers_point_to_load_addrs from ValueObject. Introduced a new m_address_type_of_children, which each ValueObject can set to tell the address type of any pointers and/or references it creates. In the current codebase, this is load address most of the time (the only notable exception being file addresses that generate file address children UNLESS we have a live process) Updated help text for summary-string Fixed an issue in STL formatters where std::stlcontainer::iterator would match the container's synthetic children providers Edited the syntax and help for some commands to have proper argument types llvm-svn: 139160
2011-09-07 03:20:51 +08:00
{
Mutex::Locker api_locker (target_sp->GetAPIMutex());
Redesign of the interaction between Python and frozen objects: - introduced two new classes ValueObjectConstResultChild and ValueObjectConstResultImpl: the first one is a ValueObjectChild obtained from a ValueObjectConstResult, the second is a common implementation backend for VOCR and VOCRCh of method calls meant to read through pointers stored in frozen objects ; now such reads transparently move from host to target as required - as a consequence of the above, removed code that made target-memory copies of expression results in several places throughout LLDB, and also removed code that enabled to recognize an expression result VO as such - introduced a new GetPointeeData() method in ValueObject that lets you read a given amount of objects of type T from a VO representing a T* or T[], and doing dereferences transparently in private layer it returns a DataExtractor ; in public layer it returns an instance of a newly created lldb::SBData - as GetPointeeData() does the right thing for both frozen and non-frozen ValueObject's, reimplemented ReadPointedString() to use it en lieu of doing the raw read itself - introduced a new GetData() method in ValueObject that lets you get a copy of the data that backs the ValueObject (for pointers, this returns the address without any previous dereferencing steps ; for arrays it actually reads the whole chunk of memory) in public layer this returns an SBData, just like GetPointeeData() - introduced a new CreateValueFromData() method in SBValue that lets you create a new SBValue from a chunk of data wrapped in an SBData the limitation to remember for this kind of SBValue is that they have no address: extracting the address-of for these objects (with any of GetAddress(), GetLoadAddress() and AddressOf()) will return invalid values - added several tests to check that "p"-ing objects (STL classes, char* and char[]) will do the right thing Solved a bug where global pointers to global variables were not dereferenced correctly for display New target setting "max-string-summary-length" gives the maximum number of characters to show in a string when summarizing it, instead of the hardcoded 128 Solved a bug where the summary for char[] and char* would not be shown if the ValueObject's were dumped via the "p" command Removed m_pointers_point_to_load_addrs from ValueObject. Introduced a new m_address_type_of_children, which each ValueObject can set to tell the address type of any pointers and/or references it creates. In the current codebase, this is load address most of the time (the only notable exception being file addresses that generate file address children UNLESS we have a live process) Updated help text for summary-string Fixed an issue in STL formatters where std::stlcontainer::iterator would match the container's synthetic children providers Edited the syntax and help for some commands to have proper argument types llvm-svn: 139160
2011-09-07 03:20:51 +08:00
const bool scalar_is_load_address = true;
AddressType addr_type;
value = value_sp->GetAddressOf(scalar_is_load_address, &addr_type);
Redesign of the interaction between Python and frozen objects: - introduced two new classes ValueObjectConstResultChild and ValueObjectConstResultImpl: the first one is a ValueObjectChild obtained from a ValueObjectConstResult, the second is a common implementation backend for VOCR and VOCRCh of method calls meant to read through pointers stored in frozen objects ; now such reads transparently move from host to target as required - as a consequence of the above, removed code that made target-memory copies of expression results in several places throughout LLDB, and also removed code that enabled to recognize an expression result VO as such - introduced a new GetPointeeData() method in ValueObject that lets you read a given amount of objects of type T from a VO representing a T* or T[], and doing dereferences transparently in private layer it returns a DataExtractor ; in public layer it returns an instance of a newly created lldb::SBData - as GetPointeeData() does the right thing for both frozen and non-frozen ValueObject's, reimplemented ReadPointedString() to use it en lieu of doing the raw read itself - introduced a new GetData() method in ValueObject that lets you get a copy of the data that backs the ValueObject (for pointers, this returns the address without any previous dereferencing steps ; for arrays it actually reads the whole chunk of memory) in public layer this returns an SBData, just like GetPointeeData() - introduced a new CreateValueFromData() method in SBValue that lets you create a new SBValue from a chunk of data wrapped in an SBData the limitation to remember for this kind of SBValue is that they have no address: extracting the address-of for these objects (with any of GetAddress(), GetLoadAddress() and AddressOf()) will return invalid values - added several tests to check that "p"-ing objects (STL classes, char* and char[]) will do the right thing Solved a bug where global pointers to global variables were not dereferenced correctly for display New target setting "max-string-summary-length" gives the maximum number of characters to show in a string when summarizing it, instead of the hardcoded 128 Solved a bug where the summary for char[] and char* would not be shown if the ValueObject's were dumped via the "p" command Removed m_pointers_point_to_load_addrs from ValueObject. Introduced a new m_address_type_of_children, which each ValueObject can set to tell the address type of any pointers and/or references it creates. In the current codebase, this is load address most of the time (the only notable exception being file addresses that generate file address children UNLESS we have a live process) Updated help text for summary-string Fixed an issue in STL formatters where std::stlcontainer::iterator would match the container's synthetic children providers Edited the syntax and help for some commands to have proper argument types llvm-svn: 139160
2011-09-07 03:20:51 +08:00
if (addr_type == eAddressTypeFile)
{
ModuleSP module_sp (value_sp->GetModule());
if (!module_sp)
Redesign of the interaction between Python and frozen objects: - introduced two new classes ValueObjectConstResultChild and ValueObjectConstResultImpl: the first one is a ValueObjectChild obtained from a ValueObjectConstResult, the second is a common implementation backend for VOCR and VOCRCh of method calls meant to read through pointers stored in frozen objects ; now such reads transparently move from host to target as required - as a consequence of the above, removed code that made target-memory copies of expression results in several places throughout LLDB, and also removed code that enabled to recognize an expression result VO as such - introduced a new GetPointeeData() method in ValueObject that lets you read a given amount of objects of type T from a VO representing a T* or T[], and doing dereferences transparently in private layer it returns a DataExtractor ; in public layer it returns an instance of a newly created lldb::SBData - as GetPointeeData() does the right thing for both frozen and non-frozen ValueObject's, reimplemented ReadPointedString() to use it en lieu of doing the raw read itself - introduced a new GetData() method in ValueObject that lets you get a copy of the data that backs the ValueObject (for pointers, this returns the address without any previous dereferencing steps ; for arrays it actually reads the whole chunk of memory) in public layer this returns an SBData, just like GetPointeeData() - introduced a new CreateValueFromData() method in SBValue that lets you create a new SBValue from a chunk of data wrapped in an SBData the limitation to remember for this kind of SBValue is that they have no address: extracting the address-of for these objects (with any of GetAddress(), GetLoadAddress() and AddressOf()) will return invalid values - added several tests to check that "p"-ing objects (STL classes, char* and char[]) will do the right thing Solved a bug where global pointers to global variables were not dereferenced correctly for display New target setting "max-string-summary-length" gives the maximum number of characters to show in a string when summarizing it, instead of the hardcoded 128 Solved a bug where the summary for char[] and char* would not be shown if the ValueObject's were dumped via the "p" command Removed m_pointers_point_to_load_addrs from ValueObject. Introduced a new m_address_type_of_children, which each ValueObject can set to tell the address type of any pointers and/or references it creates. In the current codebase, this is load address most of the time (the only notable exception being file addresses that generate file address children UNLESS we have a live process) Updated help text for summary-string Fixed an issue in STL formatters where std::stlcontainer::iterator would match the container's synthetic children providers Edited the syntax and help for some commands to have proper argument types llvm-svn: 139160
2011-09-07 03:20:51 +08:00
value = LLDB_INVALID_ADDRESS;
else
{
Address addr;
module_sp->ResolveFileAddress(value, addr);
value = addr.GetLoadAddress(target_sp.get());
Redesign of the interaction between Python and frozen objects: - introduced two new classes ValueObjectConstResultChild and ValueObjectConstResultImpl: the first one is a ValueObjectChild obtained from a ValueObjectConstResult, the second is a common implementation backend for VOCR and VOCRCh of method calls meant to read through pointers stored in frozen objects ; now such reads transparently move from host to target as required - as a consequence of the above, removed code that made target-memory copies of expression results in several places throughout LLDB, and also removed code that enabled to recognize an expression result VO as such - introduced a new GetPointeeData() method in ValueObject that lets you read a given amount of objects of type T from a VO representing a T* or T[], and doing dereferences transparently in private layer it returns a DataExtractor ; in public layer it returns an instance of a newly created lldb::SBData - as GetPointeeData() does the right thing for both frozen and non-frozen ValueObject's, reimplemented ReadPointedString() to use it en lieu of doing the raw read itself - introduced a new GetData() method in ValueObject that lets you get a copy of the data that backs the ValueObject (for pointers, this returns the address without any previous dereferencing steps ; for arrays it actually reads the whole chunk of memory) in public layer this returns an SBData, just like GetPointeeData() - introduced a new CreateValueFromData() method in SBValue that lets you create a new SBValue from a chunk of data wrapped in an SBData the limitation to remember for this kind of SBValue is that they have no address: extracting the address-of for these objects (with any of GetAddress(), GetLoadAddress() and AddressOf()) will return invalid values - added several tests to check that "p"-ing objects (STL classes, char* and char[]) will do the right thing Solved a bug where global pointers to global variables were not dereferenced correctly for display New target setting "max-string-summary-length" gives the maximum number of characters to show in a string when summarizing it, instead of the hardcoded 128 Solved a bug where the summary for char[] and char* would not be shown if the ValueObject's were dumped via the "p" command Removed m_pointers_point_to_load_addrs from ValueObject. Introduced a new m_address_type_of_children, which each ValueObject can set to tell the address type of any pointers and/or references it creates. In the current codebase, this is load address most of the time (the only notable exception being file addresses that generate file address children UNLESS we have a live process) Updated help text for summary-string Fixed an issue in STL formatters where std::stlcontainer::iterator would match the container's synthetic children providers Edited the syntax and help for some commands to have proper argument types llvm-svn: 139160
2011-09-07 03:20:51 +08:00
}
}
else if (addr_type == eAddressTypeHost || addr_type == eAddressTypeInvalid)
value = LLDB_INVALID_ADDRESS;
}
}
LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
if (log)
log->Printf ("SBValue(%p)::GetLoadAddress () => (%llu)", value_sp.get(), value);
Redesign of the interaction between Python and frozen objects: - introduced two new classes ValueObjectConstResultChild and ValueObjectConstResultImpl: the first one is a ValueObjectChild obtained from a ValueObjectConstResult, the second is a common implementation backend for VOCR and VOCRCh of method calls meant to read through pointers stored in frozen objects ; now such reads transparently move from host to target as required - as a consequence of the above, removed code that made target-memory copies of expression results in several places throughout LLDB, and also removed code that enabled to recognize an expression result VO as such - introduced a new GetPointeeData() method in ValueObject that lets you read a given amount of objects of type T from a VO representing a T* or T[], and doing dereferences transparently in private layer it returns a DataExtractor ; in public layer it returns an instance of a newly created lldb::SBData - as GetPointeeData() does the right thing for both frozen and non-frozen ValueObject's, reimplemented ReadPointedString() to use it en lieu of doing the raw read itself - introduced a new GetData() method in ValueObject that lets you get a copy of the data that backs the ValueObject (for pointers, this returns the address without any previous dereferencing steps ; for arrays it actually reads the whole chunk of memory) in public layer this returns an SBData, just like GetPointeeData() - introduced a new CreateValueFromData() method in SBValue that lets you create a new SBValue from a chunk of data wrapped in an SBData the limitation to remember for this kind of SBValue is that they have no address: extracting the address-of for these objects (with any of GetAddress(), GetLoadAddress() and AddressOf()) will return invalid values - added several tests to check that "p"-ing objects (STL classes, char* and char[]) will do the right thing Solved a bug where global pointers to global variables were not dereferenced correctly for display New target setting "max-string-summary-length" gives the maximum number of characters to show in a string when summarizing it, instead of the hardcoded 128 Solved a bug where the summary for char[] and char* would not be shown if the ValueObject's were dumped via the "p" command Removed m_pointers_point_to_load_addrs from ValueObject. Introduced a new m_address_type_of_children, which each ValueObject can set to tell the address type of any pointers and/or references it creates. In the current codebase, this is load address most of the time (the only notable exception being file addresses that generate file address children UNLESS we have a live process) Updated help text for summary-string Fixed an issue in STL formatters where std::stlcontainer::iterator would match the container's synthetic children providers Edited the syntax and help for some commands to have proper argument types llvm-svn: 139160
2011-09-07 03:20:51 +08:00
return value;
}
lldb::SBAddress
SBValue::GetAddress()
{
Address addr;
lldb::ValueObjectSP value_sp(GetSP());
if (value_sp)
Redesign of the interaction between Python and frozen objects: - introduced two new classes ValueObjectConstResultChild and ValueObjectConstResultImpl: the first one is a ValueObjectChild obtained from a ValueObjectConstResult, the second is a common implementation backend for VOCR and VOCRCh of method calls meant to read through pointers stored in frozen objects ; now such reads transparently move from host to target as required - as a consequence of the above, removed code that made target-memory copies of expression results in several places throughout LLDB, and also removed code that enabled to recognize an expression result VO as such - introduced a new GetPointeeData() method in ValueObject that lets you read a given amount of objects of type T from a VO representing a T* or T[], and doing dereferences transparently in private layer it returns a DataExtractor ; in public layer it returns an instance of a newly created lldb::SBData - as GetPointeeData() does the right thing for both frozen and non-frozen ValueObject's, reimplemented ReadPointedString() to use it en lieu of doing the raw read itself - introduced a new GetData() method in ValueObject that lets you get a copy of the data that backs the ValueObject (for pointers, this returns the address without any previous dereferencing steps ; for arrays it actually reads the whole chunk of memory) in public layer this returns an SBData, just like GetPointeeData() - introduced a new CreateValueFromData() method in SBValue that lets you create a new SBValue from a chunk of data wrapped in an SBData the limitation to remember for this kind of SBValue is that they have no address: extracting the address-of for these objects (with any of GetAddress(), GetLoadAddress() and AddressOf()) will return invalid values - added several tests to check that "p"-ing objects (STL classes, char* and char[]) will do the right thing Solved a bug where global pointers to global variables were not dereferenced correctly for display New target setting "max-string-summary-length" gives the maximum number of characters to show in a string when summarizing it, instead of the hardcoded 128 Solved a bug where the summary for char[] and char* would not be shown if the ValueObject's were dumped via the "p" command Removed m_pointers_point_to_load_addrs from ValueObject. Introduced a new m_address_type_of_children, which each ValueObject can set to tell the address type of any pointers and/or references it creates. In the current codebase, this is load address most of the time (the only notable exception being file addresses that generate file address children UNLESS we have a live process) Updated help text for summary-string Fixed an issue in STL formatters where std::stlcontainer::iterator would match the container's synthetic children providers Edited the syntax and help for some commands to have proper argument types llvm-svn: 139160
2011-09-07 03:20:51 +08:00
{
TargetSP target_sp (value_sp->GetTargetSP());
if (target_sp)
Redesign of the interaction between Python and frozen objects: - introduced two new classes ValueObjectConstResultChild and ValueObjectConstResultImpl: the first one is a ValueObjectChild obtained from a ValueObjectConstResult, the second is a common implementation backend for VOCR and VOCRCh of method calls meant to read through pointers stored in frozen objects ; now such reads transparently move from host to target as required - as a consequence of the above, removed code that made target-memory copies of expression results in several places throughout LLDB, and also removed code that enabled to recognize an expression result VO as such - introduced a new GetPointeeData() method in ValueObject that lets you read a given amount of objects of type T from a VO representing a T* or T[], and doing dereferences transparently in private layer it returns a DataExtractor ; in public layer it returns an instance of a newly created lldb::SBData - as GetPointeeData() does the right thing for both frozen and non-frozen ValueObject's, reimplemented ReadPointedString() to use it en lieu of doing the raw read itself - introduced a new GetData() method in ValueObject that lets you get a copy of the data that backs the ValueObject (for pointers, this returns the address without any previous dereferencing steps ; for arrays it actually reads the whole chunk of memory) in public layer this returns an SBData, just like GetPointeeData() - introduced a new CreateValueFromData() method in SBValue that lets you create a new SBValue from a chunk of data wrapped in an SBData the limitation to remember for this kind of SBValue is that they have no address: extracting the address-of for these objects (with any of GetAddress(), GetLoadAddress() and AddressOf()) will return invalid values - added several tests to check that "p"-ing objects (STL classes, char* and char[]) will do the right thing Solved a bug where global pointers to global variables were not dereferenced correctly for display New target setting "max-string-summary-length" gives the maximum number of characters to show in a string when summarizing it, instead of the hardcoded 128 Solved a bug where the summary for char[] and char* would not be shown if the ValueObject's were dumped via the "p" command Removed m_pointers_point_to_load_addrs from ValueObject. Introduced a new m_address_type_of_children, which each ValueObject can set to tell the address type of any pointers and/or references it creates. In the current codebase, this is load address most of the time (the only notable exception being file addresses that generate file address children UNLESS we have a live process) Updated help text for summary-string Fixed an issue in STL formatters where std::stlcontainer::iterator would match the container's synthetic children providers Edited the syntax and help for some commands to have proper argument types llvm-svn: 139160
2011-09-07 03:20:51 +08:00
{
lldb::addr_t value = LLDB_INVALID_ADDRESS;
Mutex::Locker api_locker (target_sp->GetAPIMutex());
Redesign of the interaction between Python and frozen objects: - introduced two new classes ValueObjectConstResultChild and ValueObjectConstResultImpl: the first one is a ValueObjectChild obtained from a ValueObjectConstResult, the second is a common implementation backend for VOCR and VOCRCh of method calls meant to read through pointers stored in frozen objects ; now such reads transparently move from host to target as required - as a consequence of the above, removed code that made target-memory copies of expression results in several places throughout LLDB, and also removed code that enabled to recognize an expression result VO as such - introduced a new GetPointeeData() method in ValueObject that lets you read a given amount of objects of type T from a VO representing a T* or T[], and doing dereferences transparently in private layer it returns a DataExtractor ; in public layer it returns an instance of a newly created lldb::SBData - as GetPointeeData() does the right thing for both frozen and non-frozen ValueObject's, reimplemented ReadPointedString() to use it en lieu of doing the raw read itself - introduced a new GetData() method in ValueObject that lets you get a copy of the data that backs the ValueObject (for pointers, this returns the address without any previous dereferencing steps ; for arrays it actually reads the whole chunk of memory) in public layer this returns an SBData, just like GetPointeeData() - introduced a new CreateValueFromData() method in SBValue that lets you create a new SBValue from a chunk of data wrapped in an SBData the limitation to remember for this kind of SBValue is that they have no address: extracting the address-of for these objects (with any of GetAddress(), GetLoadAddress() and AddressOf()) will return invalid values - added several tests to check that "p"-ing objects (STL classes, char* and char[]) will do the right thing Solved a bug where global pointers to global variables were not dereferenced correctly for display New target setting "max-string-summary-length" gives the maximum number of characters to show in a string when summarizing it, instead of the hardcoded 128 Solved a bug where the summary for char[] and char* would not be shown if the ValueObject's were dumped via the "p" command Removed m_pointers_point_to_load_addrs from ValueObject. Introduced a new m_address_type_of_children, which each ValueObject can set to tell the address type of any pointers and/or references it creates. In the current codebase, this is load address most of the time (the only notable exception being file addresses that generate file address children UNLESS we have a live process) Updated help text for summary-string Fixed an issue in STL formatters where std::stlcontainer::iterator would match the container's synthetic children providers Edited the syntax and help for some commands to have proper argument types llvm-svn: 139160
2011-09-07 03:20:51 +08:00
const bool scalar_is_load_address = true;
AddressType addr_type;
value = value_sp->GetAddressOf(scalar_is_load_address, &addr_type);
Redesign of the interaction between Python and frozen objects: - introduced two new classes ValueObjectConstResultChild and ValueObjectConstResultImpl: the first one is a ValueObjectChild obtained from a ValueObjectConstResult, the second is a common implementation backend for VOCR and VOCRCh of method calls meant to read through pointers stored in frozen objects ; now such reads transparently move from host to target as required - as a consequence of the above, removed code that made target-memory copies of expression results in several places throughout LLDB, and also removed code that enabled to recognize an expression result VO as such - introduced a new GetPointeeData() method in ValueObject that lets you read a given amount of objects of type T from a VO representing a T* or T[], and doing dereferences transparently in private layer it returns a DataExtractor ; in public layer it returns an instance of a newly created lldb::SBData - as GetPointeeData() does the right thing for both frozen and non-frozen ValueObject's, reimplemented ReadPointedString() to use it en lieu of doing the raw read itself - introduced a new GetData() method in ValueObject that lets you get a copy of the data that backs the ValueObject (for pointers, this returns the address without any previous dereferencing steps ; for arrays it actually reads the whole chunk of memory) in public layer this returns an SBData, just like GetPointeeData() - introduced a new CreateValueFromData() method in SBValue that lets you create a new SBValue from a chunk of data wrapped in an SBData the limitation to remember for this kind of SBValue is that they have no address: extracting the address-of for these objects (with any of GetAddress(), GetLoadAddress() and AddressOf()) will return invalid values - added several tests to check that "p"-ing objects (STL classes, char* and char[]) will do the right thing Solved a bug where global pointers to global variables were not dereferenced correctly for display New target setting "max-string-summary-length" gives the maximum number of characters to show in a string when summarizing it, instead of the hardcoded 128 Solved a bug where the summary for char[] and char* would not be shown if the ValueObject's were dumped via the "p" command Removed m_pointers_point_to_load_addrs from ValueObject. Introduced a new m_address_type_of_children, which each ValueObject can set to tell the address type of any pointers and/or references it creates. In the current codebase, this is load address most of the time (the only notable exception being file addresses that generate file address children UNLESS we have a live process) Updated help text for summary-string Fixed an issue in STL formatters where std::stlcontainer::iterator would match the container's synthetic children providers Edited the syntax and help for some commands to have proper argument types llvm-svn: 139160
2011-09-07 03:20:51 +08:00
if (addr_type == eAddressTypeFile)
{
ModuleSP module_sp (value_sp->GetModule());
if (module_sp)
module_sp->ResolveFileAddress(value, addr);
Redesign of the interaction between Python and frozen objects: - introduced two new classes ValueObjectConstResultChild and ValueObjectConstResultImpl: the first one is a ValueObjectChild obtained from a ValueObjectConstResult, the second is a common implementation backend for VOCR and VOCRCh of method calls meant to read through pointers stored in frozen objects ; now such reads transparently move from host to target as required - as a consequence of the above, removed code that made target-memory copies of expression results in several places throughout LLDB, and also removed code that enabled to recognize an expression result VO as such - introduced a new GetPointeeData() method in ValueObject that lets you read a given amount of objects of type T from a VO representing a T* or T[], and doing dereferences transparently in private layer it returns a DataExtractor ; in public layer it returns an instance of a newly created lldb::SBData - as GetPointeeData() does the right thing for both frozen and non-frozen ValueObject's, reimplemented ReadPointedString() to use it en lieu of doing the raw read itself - introduced a new GetData() method in ValueObject that lets you get a copy of the data that backs the ValueObject (for pointers, this returns the address without any previous dereferencing steps ; for arrays it actually reads the whole chunk of memory) in public layer this returns an SBData, just like GetPointeeData() - introduced a new CreateValueFromData() method in SBValue that lets you create a new SBValue from a chunk of data wrapped in an SBData the limitation to remember for this kind of SBValue is that they have no address: extracting the address-of for these objects (with any of GetAddress(), GetLoadAddress() and AddressOf()) will return invalid values - added several tests to check that "p"-ing objects (STL classes, char* and char[]) will do the right thing Solved a bug where global pointers to global variables were not dereferenced correctly for display New target setting "max-string-summary-length" gives the maximum number of characters to show in a string when summarizing it, instead of the hardcoded 128 Solved a bug where the summary for char[] and char* would not be shown if the ValueObject's were dumped via the "p" command Removed m_pointers_point_to_load_addrs from ValueObject. Introduced a new m_address_type_of_children, which each ValueObject can set to tell the address type of any pointers and/or references it creates. In the current codebase, this is load address most of the time (the only notable exception being file addresses that generate file address children UNLESS we have a live process) Updated help text for summary-string Fixed an issue in STL formatters where std::stlcontainer::iterator would match the container's synthetic children providers Edited the syntax and help for some commands to have proper argument types llvm-svn: 139160
2011-09-07 03:20:51 +08:00
}
else if (addr_type == eAddressTypeLoad)
{
// no need to check the return value on this.. if it can actually do the resolve
// addr will be in the form (section,offset), otherwise it will simply be returned
// as (NULL, value)
addr.SetLoadAddress(value, target_sp.get());
Redesign of the interaction between Python and frozen objects: - introduced two new classes ValueObjectConstResultChild and ValueObjectConstResultImpl: the first one is a ValueObjectChild obtained from a ValueObjectConstResult, the second is a common implementation backend for VOCR and VOCRCh of method calls meant to read through pointers stored in frozen objects ; now such reads transparently move from host to target as required - as a consequence of the above, removed code that made target-memory copies of expression results in several places throughout LLDB, and also removed code that enabled to recognize an expression result VO as such - introduced a new GetPointeeData() method in ValueObject that lets you read a given amount of objects of type T from a VO representing a T* or T[], and doing dereferences transparently in private layer it returns a DataExtractor ; in public layer it returns an instance of a newly created lldb::SBData - as GetPointeeData() does the right thing for both frozen and non-frozen ValueObject's, reimplemented ReadPointedString() to use it en lieu of doing the raw read itself - introduced a new GetData() method in ValueObject that lets you get a copy of the data that backs the ValueObject (for pointers, this returns the address without any previous dereferencing steps ; for arrays it actually reads the whole chunk of memory) in public layer this returns an SBData, just like GetPointeeData() - introduced a new CreateValueFromData() method in SBValue that lets you create a new SBValue from a chunk of data wrapped in an SBData the limitation to remember for this kind of SBValue is that they have no address: extracting the address-of for these objects (with any of GetAddress(), GetLoadAddress() and AddressOf()) will return invalid values - added several tests to check that "p"-ing objects (STL classes, char* and char[]) will do the right thing Solved a bug where global pointers to global variables were not dereferenced correctly for display New target setting "max-string-summary-length" gives the maximum number of characters to show in a string when summarizing it, instead of the hardcoded 128 Solved a bug where the summary for char[] and char* would not be shown if the ValueObject's were dumped via the "p" command Removed m_pointers_point_to_load_addrs from ValueObject. Introduced a new m_address_type_of_children, which each ValueObject can set to tell the address type of any pointers and/or references it creates. In the current codebase, this is load address most of the time (the only notable exception being file addresses that generate file address children UNLESS we have a live process) Updated help text for summary-string Fixed an issue in STL formatters where std::stlcontainer::iterator would match the container's synthetic children providers Edited the syntax and help for some commands to have proper argument types llvm-svn: 139160
2011-09-07 03:20:51 +08:00
}
}
}
LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
if (log)
log->Printf ("SBValue(%p)::GetAddress () => (%s,%llu)", value_sp.get(), (addr.GetSection() ? addr.GetSection()->GetName().GetCString() : "NULL"), addr.GetOffset());
Redesign of the interaction between Python and frozen objects: - introduced two new classes ValueObjectConstResultChild and ValueObjectConstResultImpl: the first one is a ValueObjectChild obtained from a ValueObjectConstResult, the second is a common implementation backend for VOCR and VOCRCh of method calls meant to read through pointers stored in frozen objects ; now such reads transparently move from host to target as required - as a consequence of the above, removed code that made target-memory copies of expression results in several places throughout LLDB, and also removed code that enabled to recognize an expression result VO as such - introduced a new GetPointeeData() method in ValueObject that lets you read a given amount of objects of type T from a VO representing a T* or T[], and doing dereferences transparently in private layer it returns a DataExtractor ; in public layer it returns an instance of a newly created lldb::SBData - as GetPointeeData() does the right thing for both frozen and non-frozen ValueObject's, reimplemented ReadPointedString() to use it en lieu of doing the raw read itself - introduced a new GetData() method in ValueObject that lets you get a copy of the data that backs the ValueObject (for pointers, this returns the address without any previous dereferencing steps ; for arrays it actually reads the whole chunk of memory) in public layer this returns an SBData, just like GetPointeeData() - introduced a new CreateValueFromData() method in SBValue that lets you create a new SBValue from a chunk of data wrapped in an SBData the limitation to remember for this kind of SBValue is that they have no address: extracting the address-of for these objects (with any of GetAddress(), GetLoadAddress() and AddressOf()) will return invalid values - added several tests to check that "p"-ing objects (STL classes, char* and char[]) will do the right thing Solved a bug where global pointers to global variables were not dereferenced correctly for display New target setting "max-string-summary-length" gives the maximum number of characters to show in a string when summarizing it, instead of the hardcoded 128 Solved a bug where the summary for char[] and char* would not be shown if the ValueObject's were dumped via the "p" command Removed m_pointers_point_to_load_addrs from ValueObject. Introduced a new m_address_type_of_children, which each ValueObject can set to tell the address type of any pointers and/or references it creates. In the current codebase, this is load address most of the time (the only notable exception being file addresses that generate file address children UNLESS we have a live process) Updated help text for summary-string Fixed an issue in STL formatters where std::stlcontainer::iterator would match the container's synthetic children providers Edited the syntax and help for some commands to have proper argument types llvm-svn: 139160
2011-09-07 03:20:51 +08:00
return SBAddress(new Address(addr));
}
lldb::SBData
SBValue::GetPointeeData (uint32_t item_idx,
uint32_t item_count)
{
LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
Redesign of the interaction between Python and frozen objects: - introduced two new classes ValueObjectConstResultChild and ValueObjectConstResultImpl: the first one is a ValueObjectChild obtained from a ValueObjectConstResult, the second is a common implementation backend for VOCR and VOCRCh of method calls meant to read through pointers stored in frozen objects ; now such reads transparently move from host to target as required - as a consequence of the above, removed code that made target-memory copies of expression results in several places throughout LLDB, and also removed code that enabled to recognize an expression result VO as such - introduced a new GetPointeeData() method in ValueObject that lets you read a given amount of objects of type T from a VO representing a T* or T[], and doing dereferences transparently in private layer it returns a DataExtractor ; in public layer it returns an instance of a newly created lldb::SBData - as GetPointeeData() does the right thing for both frozen and non-frozen ValueObject's, reimplemented ReadPointedString() to use it en lieu of doing the raw read itself - introduced a new GetData() method in ValueObject that lets you get a copy of the data that backs the ValueObject (for pointers, this returns the address without any previous dereferencing steps ; for arrays it actually reads the whole chunk of memory) in public layer this returns an SBData, just like GetPointeeData() - introduced a new CreateValueFromData() method in SBValue that lets you create a new SBValue from a chunk of data wrapped in an SBData the limitation to remember for this kind of SBValue is that they have no address: extracting the address-of for these objects (with any of GetAddress(), GetLoadAddress() and AddressOf()) will return invalid values - added several tests to check that "p"-ing objects (STL classes, char* and char[]) will do the right thing Solved a bug where global pointers to global variables were not dereferenced correctly for display New target setting "max-string-summary-length" gives the maximum number of characters to show in a string when summarizing it, instead of the hardcoded 128 Solved a bug where the summary for char[] and char* would not be shown if the ValueObject's were dumped via the "p" command Removed m_pointers_point_to_load_addrs from ValueObject. Introduced a new m_address_type_of_children, which each ValueObject can set to tell the address type of any pointers and/or references it creates. In the current codebase, this is load address most of the time (the only notable exception being file addresses that generate file address children UNLESS we have a live process) Updated help text for summary-string Fixed an issue in STL formatters where std::stlcontainer::iterator would match the container's synthetic children providers Edited the syntax and help for some commands to have proper argument types llvm-svn: 139160
2011-09-07 03:20:51 +08:00
lldb::SBData sb_data;
lldb::ValueObjectSP value_sp(GetSP());
if (value_sp)
Redesign of the interaction between Python and frozen objects: - introduced two new classes ValueObjectConstResultChild and ValueObjectConstResultImpl: the first one is a ValueObjectChild obtained from a ValueObjectConstResult, the second is a common implementation backend for VOCR and VOCRCh of method calls meant to read through pointers stored in frozen objects ; now such reads transparently move from host to target as required - as a consequence of the above, removed code that made target-memory copies of expression results in several places throughout LLDB, and also removed code that enabled to recognize an expression result VO as such - introduced a new GetPointeeData() method in ValueObject that lets you read a given amount of objects of type T from a VO representing a T* or T[], and doing dereferences transparently in private layer it returns a DataExtractor ; in public layer it returns an instance of a newly created lldb::SBData - as GetPointeeData() does the right thing for both frozen and non-frozen ValueObject's, reimplemented ReadPointedString() to use it en lieu of doing the raw read itself - introduced a new GetData() method in ValueObject that lets you get a copy of the data that backs the ValueObject (for pointers, this returns the address without any previous dereferencing steps ; for arrays it actually reads the whole chunk of memory) in public layer this returns an SBData, just like GetPointeeData() - introduced a new CreateValueFromData() method in SBValue that lets you create a new SBValue from a chunk of data wrapped in an SBData the limitation to remember for this kind of SBValue is that they have no address: extracting the address-of for these objects (with any of GetAddress(), GetLoadAddress() and AddressOf()) will return invalid values - added several tests to check that "p"-ing objects (STL classes, char* and char[]) will do the right thing Solved a bug where global pointers to global variables were not dereferenced correctly for display New target setting "max-string-summary-length" gives the maximum number of characters to show in a string when summarizing it, instead of the hardcoded 128 Solved a bug where the summary for char[] and char* would not be shown if the ValueObject's were dumped via the "p" command Removed m_pointers_point_to_load_addrs from ValueObject. Introduced a new m_address_type_of_children, which each ValueObject can set to tell the address type of any pointers and/or references it creates. In the current codebase, this is load address most of the time (the only notable exception being file addresses that generate file address children UNLESS we have a live process) Updated help text for summary-string Fixed an issue in STL formatters where std::stlcontainer::iterator would match the container's synthetic children providers Edited the syntax and help for some commands to have proper argument types llvm-svn: 139160
2011-09-07 03:20:51 +08:00
{
ProcessSP process_sp(value_sp->GetProcessSP());
Process::StopLocker stop_locker;
if (process_sp && !stop_locker.TryLock(&process_sp->GetRunLock()))
Redesign of the interaction between Python and frozen objects: - introduced two new classes ValueObjectConstResultChild and ValueObjectConstResultImpl: the first one is a ValueObjectChild obtained from a ValueObjectConstResult, the second is a common implementation backend for VOCR and VOCRCh of method calls meant to read through pointers stored in frozen objects ; now such reads transparently move from host to target as required - as a consequence of the above, removed code that made target-memory copies of expression results in several places throughout LLDB, and also removed code that enabled to recognize an expression result VO as such - introduced a new GetPointeeData() method in ValueObject that lets you read a given amount of objects of type T from a VO representing a T* or T[], and doing dereferences transparently in private layer it returns a DataExtractor ; in public layer it returns an instance of a newly created lldb::SBData - as GetPointeeData() does the right thing for both frozen and non-frozen ValueObject's, reimplemented ReadPointedString() to use it en lieu of doing the raw read itself - introduced a new GetData() method in ValueObject that lets you get a copy of the data that backs the ValueObject (for pointers, this returns the address without any previous dereferencing steps ; for arrays it actually reads the whole chunk of memory) in public layer this returns an SBData, just like GetPointeeData() - introduced a new CreateValueFromData() method in SBValue that lets you create a new SBValue from a chunk of data wrapped in an SBData the limitation to remember for this kind of SBValue is that they have no address: extracting the address-of for these objects (with any of GetAddress(), GetLoadAddress() and AddressOf()) will return invalid values - added several tests to check that "p"-ing objects (STL classes, char* and char[]) will do the right thing Solved a bug where global pointers to global variables were not dereferenced correctly for display New target setting "max-string-summary-length" gives the maximum number of characters to show in a string when summarizing it, instead of the hardcoded 128 Solved a bug where the summary for char[] and char* would not be shown if the ValueObject's were dumped via the "p" command Removed m_pointers_point_to_load_addrs from ValueObject. Introduced a new m_address_type_of_children, which each ValueObject can set to tell the address type of any pointers and/or references it creates. In the current codebase, this is load address most of the time (the only notable exception being file addresses that generate file address children UNLESS we have a live process) Updated help text for summary-string Fixed an issue in STL formatters where std::stlcontainer::iterator would match the container's synthetic children providers Edited the syntax and help for some commands to have proper argument types llvm-svn: 139160
2011-09-07 03:20:51 +08:00
{
if (log)
log->Printf ("SBValue(%p)::GetPointeeData() => error: process is running", value_sp.get());
}
else
{
TargetSP target_sp (value_sp->GetTargetSP());
if (target_sp)
{
DataExtractorSP data_sp(new DataExtractor());
Mutex::Locker api_locker (target_sp->GetAPIMutex());
value_sp->GetPointeeData(*data_sp, item_idx, item_count);
if (data_sp->GetByteSize() > 0)
*sb_data = data_sp;
}
Redesign of the interaction between Python and frozen objects: - introduced two new classes ValueObjectConstResultChild and ValueObjectConstResultImpl: the first one is a ValueObjectChild obtained from a ValueObjectConstResult, the second is a common implementation backend for VOCR and VOCRCh of method calls meant to read through pointers stored in frozen objects ; now such reads transparently move from host to target as required - as a consequence of the above, removed code that made target-memory copies of expression results in several places throughout LLDB, and also removed code that enabled to recognize an expression result VO as such - introduced a new GetPointeeData() method in ValueObject that lets you read a given amount of objects of type T from a VO representing a T* or T[], and doing dereferences transparently in private layer it returns a DataExtractor ; in public layer it returns an instance of a newly created lldb::SBData - as GetPointeeData() does the right thing for both frozen and non-frozen ValueObject's, reimplemented ReadPointedString() to use it en lieu of doing the raw read itself - introduced a new GetData() method in ValueObject that lets you get a copy of the data that backs the ValueObject (for pointers, this returns the address without any previous dereferencing steps ; for arrays it actually reads the whole chunk of memory) in public layer this returns an SBData, just like GetPointeeData() - introduced a new CreateValueFromData() method in SBValue that lets you create a new SBValue from a chunk of data wrapped in an SBData the limitation to remember for this kind of SBValue is that they have no address: extracting the address-of for these objects (with any of GetAddress(), GetLoadAddress() and AddressOf()) will return invalid values - added several tests to check that "p"-ing objects (STL classes, char* and char[]) will do the right thing Solved a bug where global pointers to global variables were not dereferenced correctly for display New target setting "max-string-summary-length" gives the maximum number of characters to show in a string when summarizing it, instead of the hardcoded 128 Solved a bug where the summary for char[] and char* would not be shown if the ValueObject's were dumped via the "p" command Removed m_pointers_point_to_load_addrs from ValueObject. Introduced a new m_address_type_of_children, which each ValueObject can set to tell the address type of any pointers and/or references it creates. In the current codebase, this is load address most of the time (the only notable exception being file addresses that generate file address children UNLESS we have a live process) Updated help text for summary-string Fixed an issue in STL formatters where std::stlcontainer::iterator would match the container's synthetic children providers Edited the syntax and help for some commands to have proper argument types llvm-svn: 139160
2011-09-07 03:20:51 +08:00
}
}
if (log)
log->Printf ("SBValue(%p)::GetPointeeData (%d, %d) => SBData(%p)",
value_sp.get(),
Redesign of the interaction between Python and frozen objects: - introduced two new classes ValueObjectConstResultChild and ValueObjectConstResultImpl: the first one is a ValueObjectChild obtained from a ValueObjectConstResult, the second is a common implementation backend for VOCR and VOCRCh of method calls meant to read through pointers stored in frozen objects ; now such reads transparently move from host to target as required - as a consequence of the above, removed code that made target-memory copies of expression results in several places throughout LLDB, and also removed code that enabled to recognize an expression result VO as such - introduced a new GetPointeeData() method in ValueObject that lets you read a given amount of objects of type T from a VO representing a T* or T[], and doing dereferences transparently in private layer it returns a DataExtractor ; in public layer it returns an instance of a newly created lldb::SBData - as GetPointeeData() does the right thing for both frozen and non-frozen ValueObject's, reimplemented ReadPointedString() to use it en lieu of doing the raw read itself - introduced a new GetData() method in ValueObject that lets you get a copy of the data that backs the ValueObject (for pointers, this returns the address without any previous dereferencing steps ; for arrays it actually reads the whole chunk of memory) in public layer this returns an SBData, just like GetPointeeData() - introduced a new CreateValueFromData() method in SBValue that lets you create a new SBValue from a chunk of data wrapped in an SBData the limitation to remember for this kind of SBValue is that they have no address: extracting the address-of for these objects (with any of GetAddress(), GetLoadAddress() and AddressOf()) will return invalid values - added several tests to check that "p"-ing objects (STL classes, char* and char[]) will do the right thing Solved a bug where global pointers to global variables were not dereferenced correctly for display New target setting "max-string-summary-length" gives the maximum number of characters to show in a string when summarizing it, instead of the hardcoded 128 Solved a bug where the summary for char[] and char* would not be shown if the ValueObject's were dumped via the "p" command Removed m_pointers_point_to_load_addrs from ValueObject. Introduced a new m_address_type_of_children, which each ValueObject can set to tell the address type of any pointers and/or references it creates. In the current codebase, this is load address most of the time (the only notable exception being file addresses that generate file address children UNLESS we have a live process) Updated help text for summary-string Fixed an issue in STL formatters where std::stlcontainer::iterator would match the container's synthetic children providers Edited the syntax and help for some commands to have proper argument types llvm-svn: 139160
2011-09-07 03:20:51 +08:00
item_idx,
item_count,
sb_data.get());
return sb_data;
}
lldb::SBData
SBValue::GetData ()
{
LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
Redesign of the interaction between Python and frozen objects: - introduced two new classes ValueObjectConstResultChild and ValueObjectConstResultImpl: the first one is a ValueObjectChild obtained from a ValueObjectConstResult, the second is a common implementation backend for VOCR and VOCRCh of method calls meant to read through pointers stored in frozen objects ; now such reads transparently move from host to target as required - as a consequence of the above, removed code that made target-memory copies of expression results in several places throughout LLDB, and also removed code that enabled to recognize an expression result VO as such - introduced a new GetPointeeData() method in ValueObject that lets you read a given amount of objects of type T from a VO representing a T* or T[], and doing dereferences transparently in private layer it returns a DataExtractor ; in public layer it returns an instance of a newly created lldb::SBData - as GetPointeeData() does the right thing for both frozen and non-frozen ValueObject's, reimplemented ReadPointedString() to use it en lieu of doing the raw read itself - introduced a new GetData() method in ValueObject that lets you get a copy of the data that backs the ValueObject (for pointers, this returns the address without any previous dereferencing steps ; for arrays it actually reads the whole chunk of memory) in public layer this returns an SBData, just like GetPointeeData() - introduced a new CreateValueFromData() method in SBValue that lets you create a new SBValue from a chunk of data wrapped in an SBData the limitation to remember for this kind of SBValue is that they have no address: extracting the address-of for these objects (with any of GetAddress(), GetLoadAddress() and AddressOf()) will return invalid values - added several tests to check that "p"-ing objects (STL classes, char* and char[]) will do the right thing Solved a bug where global pointers to global variables were not dereferenced correctly for display New target setting "max-string-summary-length" gives the maximum number of characters to show in a string when summarizing it, instead of the hardcoded 128 Solved a bug where the summary for char[] and char* would not be shown if the ValueObject's were dumped via the "p" command Removed m_pointers_point_to_load_addrs from ValueObject. Introduced a new m_address_type_of_children, which each ValueObject can set to tell the address type of any pointers and/or references it creates. In the current codebase, this is load address most of the time (the only notable exception being file addresses that generate file address children UNLESS we have a live process) Updated help text for summary-string Fixed an issue in STL formatters where std::stlcontainer::iterator would match the container's synthetic children providers Edited the syntax and help for some commands to have proper argument types llvm-svn: 139160
2011-09-07 03:20:51 +08:00
lldb::SBData sb_data;
lldb::ValueObjectSP value_sp(GetSP());
if (value_sp)
Redesign of the interaction between Python and frozen objects: - introduced two new classes ValueObjectConstResultChild and ValueObjectConstResultImpl: the first one is a ValueObjectChild obtained from a ValueObjectConstResult, the second is a common implementation backend for VOCR and VOCRCh of method calls meant to read through pointers stored in frozen objects ; now such reads transparently move from host to target as required - as a consequence of the above, removed code that made target-memory copies of expression results in several places throughout LLDB, and also removed code that enabled to recognize an expression result VO as such - introduced a new GetPointeeData() method in ValueObject that lets you read a given amount of objects of type T from a VO representing a T* or T[], and doing dereferences transparently in private layer it returns a DataExtractor ; in public layer it returns an instance of a newly created lldb::SBData - as GetPointeeData() does the right thing for both frozen and non-frozen ValueObject's, reimplemented ReadPointedString() to use it en lieu of doing the raw read itself - introduced a new GetData() method in ValueObject that lets you get a copy of the data that backs the ValueObject (for pointers, this returns the address without any previous dereferencing steps ; for arrays it actually reads the whole chunk of memory) in public layer this returns an SBData, just like GetPointeeData() - introduced a new CreateValueFromData() method in SBValue that lets you create a new SBValue from a chunk of data wrapped in an SBData the limitation to remember for this kind of SBValue is that they have no address: extracting the address-of for these objects (with any of GetAddress(), GetLoadAddress() and AddressOf()) will return invalid values - added several tests to check that "p"-ing objects (STL classes, char* and char[]) will do the right thing Solved a bug where global pointers to global variables were not dereferenced correctly for display New target setting "max-string-summary-length" gives the maximum number of characters to show in a string when summarizing it, instead of the hardcoded 128 Solved a bug where the summary for char[] and char* would not be shown if the ValueObject's were dumped via the "p" command Removed m_pointers_point_to_load_addrs from ValueObject. Introduced a new m_address_type_of_children, which each ValueObject can set to tell the address type of any pointers and/or references it creates. In the current codebase, this is load address most of the time (the only notable exception being file addresses that generate file address children UNLESS we have a live process) Updated help text for summary-string Fixed an issue in STL formatters where std::stlcontainer::iterator would match the container's synthetic children providers Edited the syntax and help for some commands to have proper argument types llvm-svn: 139160
2011-09-07 03:20:51 +08:00
{
ProcessSP process_sp(value_sp->GetProcessSP());
Process::StopLocker stop_locker;
if (process_sp && !stop_locker.TryLock(&process_sp->GetRunLock()))
Redesign of the interaction between Python and frozen objects: - introduced two new classes ValueObjectConstResultChild and ValueObjectConstResultImpl: the first one is a ValueObjectChild obtained from a ValueObjectConstResult, the second is a common implementation backend for VOCR and VOCRCh of method calls meant to read through pointers stored in frozen objects ; now such reads transparently move from host to target as required - as a consequence of the above, removed code that made target-memory copies of expression results in several places throughout LLDB, and also removed code that enabled to recognize an expression result VO as such - introduced a new GetPointeeData() method in ValueObject that lets you read a given amount of objects of type T from a VO representing a T* or T[], and doing dereferences transparently in private layer it returns a DataExtractor ; in public layer it returns an instance of a newly created lldb::SBData - as GetPointeeData() does the right thing for both frozen and non-frozen ValueObject's, reimplemented ReadPointedString() to use it en lieu of doing the raw read itself - introduced a new GetData() method in ValueObject that lets you get a copy of the data that backs the ValueObject (for pointers, this returns the address without any previous dereferencing steps ; for arrays it actually reads the whole chunk of memory) in public layer this returns an SBData, just like GetPointeeData() - introduced a new CreateValueFromData() method in SBValue that lets you create a new SBValue from a chunk of data wrapped in an SBData the limitation to remember for this kind of SBValue is that they have no address: extracting the address-of for these objects (with any of GetAddress(), GetLoadAddress() and AddressOf()) will return invalid values - added several tests to check that "p"-ing objects (STL classes, char* and char[]) will do the right thing Solved a bug where global pointers to global variables were not dereferenced correctly for display New target setting "max-string-summary-length" gives the maximum number of characters to show in a string when summarizing it, instead of the hardcoded 128 Solved a bug where the summary for char[] and char* would not be shown if the ValueObject's were dumped via the "p" command Removed m_pointers_point_to_load_addrs from ValueObject. Introduced a new m_address_type_of_children, which each ValueObject can set to tell the address type of any pointers and/or references it creates. In the current codebase, this is load address most of the time (the only notable exception being file addresses that generate file address children UNLESS we have a live process) Updated help text for summary-string Fixed an issue in STL formatters where std::stlcontainer::iterator would match the container's synthetic children providers Edited the syntax and help for some commands to have proper argument types llvm-svn: 139160
2011-09-07 03:20:51 +08:00
{
if (log)
log->Printf ("SBValue(%p)::GetData() => error: process is running", value_sp.get());
}
else
{
TargetSP target_sp (value_sp->GetTargetSP());
if (target_sp)
{
Mutex::Locker api_locker (target_sp->GetAPIMutex());
DataExtractorSP data_sp(new DataExtractor());
value_sp->GetData(*data_sp);
if (data_sp->GetByteSize() > 0)
*sb_data = data_sp;
}
Redesign of the interaction between Python and frozen objects: - introduced two new classes ValueObjectConstResultChild and ValueObjectConstResultImpl: the first one is a ValueObjectChild obtained from a ValueObjectConstResult, the second is a common implementation backend for VOCR and VOCRCh of method calls meant to read through pointers stored in frozen objects ; now such reads transparently move from host to target as required - as a consequence of the above, removed code that made target-memory copies of expression results in several places throughout LLDB, and also removed code that enabled to recognize an expression result VO as such - introduced a new GetPointeeData() method in ValueObject that lets you read a given amount of objects of type T from a VO representing a T* or T[], and doing dereferences transparently in private layer it returns a DataExtractor ; in public layer it returns an instance of a newly created lldb::SBData - as GetPointeeData() does the right thing for both frozen and non-frozen ValueObject's, reimplemented ReadPointedString() to use it en lieu of doing the raw read itself - introduced a new GetData() method in ValueObject that lets you get a copy of the data that backs the ValueObject (for pointers, this returns the address without any previous dereferencing steps ; for arrays it actually reads the whole chunk of memory) in public layer this returns an SBData, just like GetPointeeData() - introduced a new CreateValueFromData() method in SBValue that lets you create a new SBValue from a chunk of data wrapped in an SBData the limitation to remember for this kind of SBValue is that they have no address: extracting the address-of for these objects (with any of GetAddress(), GetLoadAddress() and AddressOf()) will return invalid values - added several tests to check that "p"-ing objects (STL classes, char* and char[]) will do the right thing Solved a bug where global pointers to global variables were not dereferenced correctly for display New target setting "max-string-summary-length" gives the maximum number of characters to show in a string when summarizing it, instead of the hardcoded 128 Solved a bug where the summary for char[] and char* would not be shown if the ValueObject's were dumped via the "p" command Removed m_pointers_point_to_load_addrs from ValueObject. Introduced a new m_address_type_of_children, which each ValueObject can set to tell the address type of any pointers and/or references it creates. In the current codebase, this is load address most of the time (the only notable exception being file addresses that generate file address children UNLESS we have a live process) Updated help text for summary-string Fixed an issue in STL formatters where std::stlcontainer::iterator would match the container's synthetic children providers Edited the syntax and help for some commands to have proper argument types llvm-svn: 139160
2011-09-07 03:20:51 +08:00
}
}
if (log)
log->Printf ("SBValue(%p)::GetData () => SBData(%p)",
value_sp.get(),
Redesign of the interaction between Python and frozen objects: - introduced two new classes ValueObjectConstResultChild and ValueObjectConstResultImpl: the first one is a ValueObjectChild obtained from a ValueObjectConstResult, the second is a common implementation backend for VOCR and VOCRCh of method calls meant to read through pointers stored in frozen objects ; now such reads transparently move from host to target as required - as a consequence of the above, removed code that made target-memory copies of expression results in several places throughout LLDB, and also removed code that enabled to recognize an expression result VO as such - introduced a new GetPointeeData() method in ValueObject that lets you read a given amount of objects of type T from a VO representing a T* or T[], and doing dereferences transparently in private layer it returns a DataExtractor ; in public layer it returns an instance of a newly created lldb::SBData - as GetPointeeData() does the right thing for both frozen and non-frozen ValueObject's, reimplemented ReadPointedString() to use it en lieu of doing the raw read itself - introduced a new GetData() method in ValueObject that lets you get a copy of the data that backs the ValueObject (for pointers, this returns the address without any previous dereferencing steps ; for arrays it actually reads the whole chunk of memory) in public layer this returns an SBData, just like GetPointeeData() - introduced a new CreateValueFromData() method in SBValue that lets you create a new SBValue from a chunk of data wrapped in an SBData the limitation to remember for this kind of SBValue is that they have no address: extracting the address-of for these objects (with any of GetAddress(), GetLoadAddress() and AddressOf()) will return invalid values - added several tests to check that "p"-ing objects (STL classes, char* and char[]) will do the right thing Solved a bug where global pointers to global variables were not dereferenced correctly for display New target setting "max-string-summary-length" gives the maximum number of characters to show in a string when summarizing it, instead of the hardcoded 128 Solved a bug where the summary for char[] and char* would not be shown if the ValueObject's were dumped via the "p" command Removed m_pointers_point_to_load_addrs from ValueObject. Introduced a new m_address_type_of_children, which each ValueObject can set to tell the address type of any pointers and/or references it creates. In the current codebase, this is load address most of the time (the only notable exception being file addresses that generate file address children UNLESS we have a live process) Updated help text for summary-string Fixed an issue in STL formatters where std::stlcontainer::iterator would match the container's synthetic children providers Edited the syntax and help for some commands to have proper argument types llvm-svn: 139160
2011-09-07 03:20:51 +08:00
sb_data.get());
return sb_data;
}
lldb::SBWatchpoint
SBValue::Watch (bool resolve_location, bool read, bool write)
{
SBWatchpoint sb_watchpoint;
// If the SBValue is not valid, there's no point in even trying to watch it.
lldb::ValueObjectSP value_sp(GetSP());
TargetSP target_sp (GetTarget().GetSP());
if (value_sp && target_sp)
{
// Can't watch this if the process is running
ProcessSP process_sp(value_sp->GetProcessSP());
Process::StopLocker stop_locker;
if (process_sp && !stop_locker.TryLock(&process_sp->GetRunLock()))
{
LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
if (log)
log->Printf ("SBValue(%p)::Watch() => error: process is running", value_sp.get());
return sb_watchpoint;
}
// Read and Write cannot both be false.
if (!read && !write)
return sb_watchpoint;
// If the value is not in scope, don't try and watch and invalid value
if (!IsInScope())
return sb_watchpoint;
addr_t addr = GetLoadAddress();
if (addr == LLDB_INVALID_ADDRESS)
return sb_watchpoint;
size_t byte_size = GetByteSize();
if (byte_size == 0)
return sb_watchpoint;
uint32_t watch_type = 0;
if (read)
watch_type |= LLDB_WATCH_TYPE_READ;
if (write)
watch_type |= LLDB_WATCH_TYPE_WRITE;
WatchpointSP watchpoint_sp = target_sp->CreateWatchpoint(addr, byte_size, watch_type);
if (watchpoint_sp)
{
sb_watchpoint.SetSP (watchpoint_sp);
Declaration decl;
if (value_sp->GetDeclaration (decl))
{
if (decl.GetFile())
{
StreamString ss;
// True to show fullpath for declaration file.
decl.DumpStopContext(&ss, true);
watchpoint_sp->SetDeclInfo(ss.GetString());
}
}
}
}
return sb_watchpoint;
}
lldb::SBWatchpoint
SBValue::WatchPointee (bool resolve_location, bool read, bool write)
{
SBWatchpoint sb_watchpoint;
if (IsInScope() && GetType().IsPointerType())
sb_watchpoint = Dereference().Watch (resolve_location, read, write);
return sb_watchpoint;
}