llvm-project/lldb/source/API/SBFrame.cpp
Greg Clayton c9858e4d05 Added logging when API calls try to do something that shouldn't be done when the process is stopped by having logging calls that end with "error: process is running".
Also test for the process to be stopped when many SBValue API calls are made to make sure it is safe to evaluate values, children of values and much more.

llvm-svn: 154160
2012-04-06 02:17:47 +00:00

1173 lines
37 KiB
C++

//===-- SBFrame.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/SBFrame.h"
#include <string>
#include <algorithm>
#include "lldb/lldb-types.h"
#include "lldb/Core/Address.h"
#include "lldb/Core/ConstString.h"
#include "lldb/Core/Log.h"
#include "lldb/Core/Stream.h"
#include "lldb/Core/StreamFile.h"
#include "lldb/Core/ValueObjectRegister.h"
#include "lldb/Core/ValueObjectVariable.h"
#include "lldb/Expression/ClangUserExpression.h"
#include "lldb/Host/Host.h"
#include "lldb/Symbol/Block.h"
#include "lldb/Symbol/SymbolContext.h"
#include "lldb/Symbol/VariableList.h"
#include "lldb/Symbol/Variable.h"
#include "lldb/Target/ExecutionContext.h"
#include "lldb/Target/Target.h"
#include "lldb/Target/Process.h"
#include "lldb/Target/RegisterContext.h"
#include "lldb/Target/StackFrame.h"
#include "lldb/Target/StackID.h"
#include "lldb/Target/Thread.h"
#include "lldb/API/SBDebugger.h"
#include "lldb/API/SBValue.h"
#include "lldb/API/SBAddress.h"
#include "lldb/API/SBStream.h"
#include "lldb/API/SBSymbolContext.h"
#include "lldb/API/SBThread.h"
using namespace lldb;
using namespace lldb_private;
SBFrame::SBFrame () :
m_opaque_sp (new ExecutionContextRef())
{
}
SBFrame::SBFrame (const StackFrameSP &lldb_object_sp) :
m_opaque_sp (new ExecutionContextRef (lldb_object_sp))
{
LogSP log(GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
if (log)
{
SBStream sstr;
GetDescription (sstr);
log->Printf ("SBFrame::SBFrame (sp=%p) => SBFrame(%p): %s",
lldb_object_sp.get(), lldb_object_sp.get(), sstr.GetData());
}
}
SBFrame::SBFrame(const SBFrame &rhs) :
m_opaque_sp (new ExecutionContextRef (*rhs.m_opaque_sp))
{
}
const SBFrame &
SBFrame::operator = (const SBFrame &rhs)
{
if (this != &rhs)
*m_opaque_sp = *rhs.m_opaque_sp;
return *this;
}
SBFrame::~SBFrame()
{
}
StackFrameSP
SBFrame::GetFrameSP() const
{
return m_opaque_sp->GetFrameSP();
}
void
SBFrame::SetFrameSP (const StackFrameSP &lldb_object_sp)
{
return m_opaque_sp->SetFrameSP(lldb_object_sp);
}
bool
SBFrame::IsValid() const
{
return GetFrameSP().get() != NULL;
}
SBSymbolContext
SBFrame::GetSymbolContext (uint32_t resolve_scope) const
{
LogSP log(GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
SBSymbolContext sb_sym_ctx;
ExecutionContext exe_ctx(m_opaque_sp.get());
StackFrame *frame = exe_ctx.GetFramePtr();
Target *target = exe_ctx.GetTargetPtr();
if (frame && target)
{
Process::StopLocker stop_locker;
if (stop_locker.TryLock(&exe_ctx.GetProcessPtr()->GetRunLock()))
{
Mutex::Locker api_locker (target->GetAPIMutex());
sb_sym_ctx.SetSymbolContext(&frame->GetSymbolContext (resolve_scope));
}
else
{
if (log)
log->Printf ("SBFrame(%p)::GetSymbolContext () => error: process is running", frame);
}
}
if (log)
log->Printf ("SBFrame(%p)::GetSymbolContext (resolve_scope=0x%8.8x) => SBSymbolContext(%p)",
frame, resolve_scope, sb_sym_ctx.get());
return sb_sym_ctx;
}
SBModule
SBFrame::GetModule () const
{
LogSP log(GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
SBModule sb_module;
ModuleSP module_sp;
ExecutionContext exe_ctx(m_opaque_sp.get());
StackFrame *frame = exe_ctx.GetFramePtr();
Target *target = exe_ctx.GetTargetPtr();
if (frame && target)
{
Process::StopLocker stop_locker;
if (stop_locker.TryLock(&exe_ctx.GetProcessPtr()->GetRunLock()))
{
Mutex::Locker api_locker (target->GetAPIMutex());
module_sp = frame->GetSymbolContext (eSymbolContextModule).module_sp;
sb_module.SetSP (module_sp);
}
else
{
if (log)
log->Printf ("SBFrame(%p)::GetModule () => error: process is running", frame);
}
}
if (log)
log->Printf ("SBFrame(%p)::GetModule () => SBModule(%p)",
frame, module_sp.get());
return sb_module;
}
SBCompileUnit
SBFrame::GetCompileUnit () const
{
LogSP log(GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
SBCompileUnit sb_comp_unit;
ExecutionContext exe_ctx(m_opaque_sp.get());
StackFrame *frame = exe_ctx.GetFramePtr();
Target *target = exe_ctx.GetTargetPtr();
if (frame && target)
{
Process::StopLocker stop_locker;
if (stop_locker.TryLock(&exe_ctx.GetProcessPtr()->GetRunLock()))
{
Mutex::Locker api_locker (target->GetAPIMutex());
sb_comp_unit.reset (frame->GetSymbolContext (eSymbolContextCompUnit).comp_unit);
}
else
{
if (log)
log->Printf ("SBFrame(%p)::GetCompileUnit () => error: process is running", frame);
}
}
if (log)
log->Printf ("SBFrame(%p)::GetCompileUnit () => SBCompileUnit(%p)",
frame, sb_comp_unit.get());
return sb_comp_unit;
}
SBFunction
SBFrame::GetFunction () const
{
LogSP log(GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
SBFunction sb_function;
ExecutionContext exe_ctx(m_opaque_sp.get());
StackFrame *frame = exe_ctx.GetFramePtr();
Target *target = exe_ctx.GetTargetPtr();
if (frame && target)
{
Process::StopLocker stop_locker;
if (stop_locker.TryLock(&exe_ctx.GetProcessPtr()->GetRunLock()))
{
Mutex::Locker api_locker (target->GetAPIMutex());
sb_function.reset(frame->GetSymbolContext (eSymbolContextFunction).function);
}
else
{
if (log)
log->Printf ("SBFrame(%p)::GetFunction () => error: process is running", frame);
}
}
if (log)
log->Printf ("SBFrame(%p)::GetFunction () => SBFunction(%p)",
frame, sb_function.get());
return sb_function;
}
SBSymbol
SBFrame::GetSymbol () const
{
LogSP log(GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
SBSymbol sb_symbol;
ExecutionContext exe_ctx(m_opaque_sp.get());
StackFrame *frame = exe_ctx.GetFramePtr();
Target *target = exe_ctx.GetTargetPtr();
if (frame && target)
{
Process::StopLocker stop_locker;
if (stop_locker.TryLock(&exe_ctx.GetProcessPtr()->GetRunLock()))
{
Mutex::Locker api_locker (target->GetAPIMutex());
sb_symbol.reset(frame->GetSymbolContext (eSymbolContextSymbol).symbol);
}
else
{
if (log)
log->Printf ("SBFrame(%p)::GetSymbol () => error: process is running", frame);
}
}
if (log)
log->Printf ("SBFrame(%p)::GetSymbol () => SBSymbol(%p)",
frame, sb_symbol.get());
return sb_symbol;
}
SBBlock
SBFrame::GetBlock () const
{
LogSP log(GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
SBBlock sb_block;
ExecutionContext exe_ctx(m_opaque_sp.get());
StackFrame *frame = exe_ctx.GetFramePtr();
Target *target = exe_ctx.GetTargetPtr();
if (frame && target)
{
Process::StopLocker stop_locker;
if (stop_locker.TryLock(&exe_ctx.GetProcessPtr()->GetRunLock()))
{
Mutex::Locker api_locker (target->GetAPIMutex());
sb_block.SetPtr (frame->GetSymbolContext (eSymbolContextBlock).block);
}
else
{
if (log)
log->Printf ("SBFrame(%p)::GetBlock () => error: process is running", frame);
}
}
if (log)
log->Printf ("SBFrame(%p)::GetBlock () => SBBlock(%p)",
frame, sb_block.GetPtr());
return sb_block;
}
SBBlock
SBFrame::GetFrameBlock () const
{
SBBlock sb_block;
ExecutionContext exe_ctx(m_opaque_sp.get());
StackFrame *frame = exe_ctx.GetFramePtr();
Target *target = exe_ctx.GetTargetPtr();
LogSP log(GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
if (frame && target)
{
Process::StopLocker stop_locker;
if (stop_locker.TryLock(&exe_ctx.GetProcessPtr()->GetRunLock()))
{
Mutex::Locker api_locker (target->GetAPIMutex());
sb_block.SetPtr(frame->GetFrameBlock ());
}
else
{
if (log)
log->Printf ("SBFrame(%p)::GetFrameBlock () => error: process is running", frame);
}
}
if (log)
log->Printf ("SBFrame(%p)::GetFrameBlock () => SBBlock(%p)",
frame, sb_block.GetPtr());
return sb_block;
}
SBLineEntry
SBFrame::GetLineEntry () const
{
LogSP log(GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
SBLineEntry sb_line_entry;
ExecutionContext exe_ctx(m_opaque_sp.get());
StackFrame *frame = exe_ctx.GetFramePtr();
Target *target = exe_ctx.GetTargetPtr();
if (frame && target)
{
Process::StopLocker stop_locker;
if (stop_locker.TryLock(&exe_ctx.GetProcessPtr()->GetRunLock()))
{
Mutex::Locker api_locker (target->GetAPIMutex());
sb_line_entry.SetLineEntry (frame->GetSymbolContext (eSymbolContextLineEntry).line_entry);
}
else
{
if (log)
log->Printf ("SBFrame(%p)::GetLineEntry () => error: process is running", frame);
}
}
if (log)
log->Printf ("SBFrame(%p)::GetLineEntry () => SBLineEntry(%p)",
frame, sb_line_entry.get());
return sb_line_entry;
}
uint32_t
SBFrame::GetFrameID () const
{
uint32_t frame_idx = UINT32_MAX;
ExecutionContext exe_ctx(m_opaque_sp.get());
StackFrame *frame = exe_ctx.GetFramePtr();
if (frame)
frame_idx = frame->GetFrameIndex ();
LogSP log(GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
if (log)
log->Printf ("SBFrame(%p)::GetFrameID () => %u",
frame, frame_idx);
return frame_idx;
}
addr_t
SBFrame::GetPC () const
{
LogSP log(GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
addr_t addr = LLDB_INVALID_ADDRESS;
ExecutionContext exe_ctx(m_opaque_sp.get());
StackFrame *frame = exe_ctx.GetFramePtr();
Target *target = exe_ctx.GetTargetPtr();
if (frame && target)
{
Process::StopLocker stop_locker;
if (stop_locker.TryLock(&exe_ctx.GetProcessPtr()->GetRunLock()))
{
Mutex::Locker api_locker (target->GetAPIMutex());
addr = frame->GetFrameCodeAddress().GetOpcodeLoadAddress (target);
}
else
{
if (log)
log->Printf ("SBFrame(%p)::GetPC () => error: process is running", frame);
}
}
if (log)
log->Printf ("SBFrame(%p)::GetPC () => 0x%llx", frame, addr);
return addr;
}
bool
SBFrame::SetPC (addr_t new_pc)
{
LogSP log(GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
bool ret_val = false;
ExecutionContext exe_ctx(m_opaque_sp.get());
StackFrame *frame = exe_ctx.GetFramePtr();
Target *target = exe_ctx.GetTargetPtr();
if (frame && target)
{
Process::StopLocker stop_locker;
if (stop_locker.TryLock(&exe_ctx.GetProcessPtr()->GetRunLock()))
{
Mutex::Locker api_locker (target->GetAPIMutex());
ret_val = frame->GetRegisterContext()->SetPC (new_pc);
}
else
{
if (log)
log->Printf ("SBFrame(%p)::SetPC () => error: process is running", frame);
}
}
if (log)
log->Printf ("SBFrame(%p)::SetPC (new_pc=0x%llx) => %i",
frame, new_pc, ret_val);
return ret_val;
}
addr_t
SBFrame::GetSP () const
{
LogSP log(GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
addr_t addr = LLDB_INVALID_ADDRESS;
ExecutionContext exe_ctx(m_opaque_sp.get());
StackFrame *frame = exe_ctx.GetFramePtr();
Target *target = exe_ctx.GetTargetPtr();
if (frame && target)
{
Process::StopLocker stop_locker;
if (stop_locker.TryLock(&exe_ctx.GetProcessPtr()->GetRunLock()))
{
Mutex::Locker api_locker (target->GetAPIMutex());
addr = frame->GetRegisterContext()->GetSP();
}
else
{
if (log)
log->Printf ("SBFrame(%p)::GetSP () => error: process is running", frame);
}
}
if (log)
log->Printf ("SBFrame(%p)::GetSP () => 0x%llx", frame, addr);
return addr;
}
addr_t
SBFrame::GetFP () const
{
LogSP log(GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
addr_t addr = LLDB_INVALID_ADDRESS;
ExecutionContext exe_ctx(m_opaque_sp.get());
StackFrame *frame = exe_ctx.GetFramePtr();
Target *target = exe_ctx.GetTargetPtr();
if (frame && target)
{
Process::StopLocker stop_locker;
if (stop_locker.TryLock(&exe_ctx.GetProcessPtr()->GetRunLock()))
{
Mutex::Locker api_locker (target->GetAPIMutex());
addr = frame->GetRegisterContext()->GetFP();
}
else
{
if (log)
log->Printf ("SBFrame(%p)::GetFP () => error: process is running", frame);
}
}
if (log)
log->Printf ("SBFrame(%p)::GetFP () => 0x%llx", frame, addr);
return addr;
}
SBAddress
SBFrame::GetPCAddress () const
{
LogSP log(GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
SBAddress sb_addr;
ExecutionContext exe_ctx(m_opaque_sp.get());
StackFrame *frame = exe_ctx.GetFramePtr();
Target *target = exe_ctx.GetTargetPtr();
if (frame && target)
{
Process::StopLocker stop_locker;
if (stop_locker.TryLock(&exe_ctx.GetProcessPtr()->GetRunLock()))
{
Mutex::Locker api_locker (target->GetAPIMutex());
sb_addr.SetAddress (&frame->GetFrameCodeAddress());
}
else
{
if (log)
log->Printf ("SBFrame(%p)::GetPCAddress () => error: process is running", frame);
}
}
if (log)
log->Printf ("SBFrame(%p)::GetPCAddress () => SBAddress(%p)", frame, sb_addr.get());
return sb_addr;
}
void
SBFrame::Clear()
{
m_opaque_sp.reset();
}
lldb::SBValue
SBFrame::GetValueForVariablePath (const char *var_path)
{
SBValue sb_value;
ExecutionContext exe_ctx(m_opaque_sp.get());
StackFrame *frame = exe_ctx.GetFramePtr();
Target *target = exe_ctx.GetTargetPtr();
if (frame && target)
{
lldb::DynamicValueType use_dynamic = frame->CalculateTarget()->GetPreferDynamicValue();
sb_value = GetValueForVariablePath (var_path, use_dynamic);
}
return sb_value;
}
lldb::SBValue
SBFrame::GetValueForVariablePath (const char *var_path, DynamicValueType use_dynamic)
{
SBValue sb_value;
ExecutionContext exe_ctx(m_opaque_sp.get());
StackFrame *frame = exe_ctx.GetFramePtr();
Target *target = exe_ctx.GetTargetPtr();
if (frame && target && var_path && var_path[0])
{
Process::StopLocker stop_locker;
if (stop_locker.TryLock(&exe_ctx.GetProcessPtr()->GetRunLock()))
{
Mutex::Locker api_locker (target->GetAPIMutex());
VariableSP var_sp;
Error error;
ValueObjectSP value_sp (frame->GetValueForVariableExpressionPath (var_path,
use_dynamic,
StackFrame::eExpressionPathOptionCheckPtrVsMember,
var_sp,
error));
sb_value.SetSP(value_sp);
}
else
{
LogSP log(GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
if (log)
log->Printf ("SBFrame(%p)::GetValueForVariablePath () => error: process is running", frame);
}
}
return sb_value;
}
SBValue
SBFrame::FindVariable (const char *name)
{
SBValue value;
ExecutionContext exe_ctx(m_opaque_sp.get());
StackFrame *frame = exe_ctx.GetFramePtr();
Target *target = exe_ctx.GetTargetPtr();
if (frame && target)
{
lldb::DynamicValueType use_dynamic = frame->CalculateTarget()->GetPreferDynamicValue();
value = FindVariable (name, use_dynamic);
}
return value;
}
SBValue
SBFrame::FindVariable (const char *name, lldb::DynamicValueType use_dynamic)
{
LogSP log(GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
VariableSP var_sp;
SBValue sb_value;
ValueObjectSP value_sp;
ExecutionContext exe_ctx(m_opaque_sp.get());
StackFrame *frame = exe_ctx.GetFramePtr();
Target *target = exe_ctx.GetTargetPtr();
if (frame && target && name && name[0])
{
Process::StopLocker stop_locker;
if (stop_locker.TryLock(&exe_ctx.GetProcessPtr()->GetRunLock()))
{
VariableList variable_list;
Mutex::Locker api_locker (target->GetAPIMutex());
SymbolContext sc (frame->GetSymbolContext (eSymbolContextBlock));
if (sc.block)
{
const bool can_create = true;
const bool get_parent_variables = true;
const bool stop_if_block_is_inlined_function = true;
if (sc.block->AppendVariables (can_create,
get_parent_variables,
stop_if_block_is_inlined_function,
&variable_list))
{
var_sp = variable_list.FindVariable (ConstString(name));
}
}
if (var_sp)
{
value_sp = frame->GetValueObjectForFrameVariable(var_sp, use_dynamic);
sb_value.SetSP(value_sp);
}
}
else
{
if (log)
log->Printf ("SBFrame(%p)::FindVariable () => error: process is running", frame);
}
}
if (log)
log->Printf ("SBFrame(%p)::FindVariable (name=\"%s\") => SBValue(%p)",
frame, name, value_sp.get());
return sb_value;
}
SBValue
SBFrame::FindValue (const char *name, ValueType value_type)
{
SBValue value;
ExecutionContext exe_ctx(m_opaque_sp.get());
StackFrame *frame = exe_ctx.GetFramePtr();
Target *target = exe_ctx.GetTargetPtr();
if (frame && target)
{
lldb::DynamicValueType use_dynamic = frame->CalculateTarget()->GetPreferDynamicValue();
value = FindValue (name, value_type, use_dynamic);
}
return value;
}
SBValue
SBFrame::FindValue (const char *name, ValueType value_type, lldb::DynamicValueType use_dynamic)
{
LogSP log(GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
SBValue sb_value;
ValueObjectSP value_sp;
ExecutionContext exe_ctx(m_opaque_sp.get());
StackFrame *frame = exe_ctx.GetFramePtr();
Target *target = exe_ctx.GetTargetPtr();
if (frame && target && name && name[0])
{
Process::StopLocker stop_locker;
if (stop_locker.TryLock(&exe_ctx.GetProcessPtr()->GetRunLock()))
{
Mutex::Locker api_locker (target->GetAPIMutex());
switch (value_type)
{
case eValueTypeVariableGlobal: // global variable
case eValueTypeVariableStatic: // static variable
case eValueTypeVariableArgument: // function argument variables
case eValueTypeVariableLocal: // function local variables
{
VariableList *variable_list = frame->GetVariableList(true);
SymbolContext sc (frame->GetSymbolContext (eSymbolContextBlock));
const bool can_create = true;
const bool get_parent_variables = true;
const bool stop_if_block_is_inlined_function = true;
if (sc.block && sc.block->AppendVariables (can_create,
get_parent_variables,
stop_if_block_is_inlined_function,
variable_list))
{
ConstString const_name(name);
const uint32_t num_variables = variable_list->GetSize();
for (uint32_t i = 0; i < num_variables; ++i)
{
VariableSP variable_sp (variable_list->GetVariableAtIndex(i));
if (variable_sp &&
variable_sp->GetScope() == value_type &&
variable_sp->GetName() == const_name)
{
value_sp = frame->GetValueObjectForFrameVariable (variable_sp, use_dynamic);
sb_value.SetSP (value_sp);
break;
}
}
}
}
break;
case eValueTypeRegister: // stack frame register value
{
RegisterContextSP reg_ctx (frame->GetRegisterContext());
if (reg_ctx)
{
const uint32_t num_regs = reg_ctx->GetRegisterCount();
for (uint32_t reg_idx = 0; reg_idx < num_regs; ++reg_idx)
{
const RegisterInfo *reg_info = reg_ctx->GetRegisterInfoAtIndex (reg_idx);
if (reg_info &&
((reg_info->name && strcasecmp (reg_info->name, name) == 0) ||
(reg_info->alt_name && strcasecmp (reg_info->alt_name, name) == 0)))
{
value_sp = ValueObjectRegister::Create (frame, reg_ctx, reg_idx);
sb_value.SetSP (value_sp);
break;
}
}
}
}
break;
case eValueTypeRegisterSet: // A collection of stack frame register values
{
RegisterContextSP reg_ctx (frame->GetRegisterContext());
if (reg_ctx)
{
const uint32_t num_sets = reg_ctx->GetRegisterSetCount();
for (uint32_t set_idx = 0; set_idx < num_sets; ++set_idx)
{
const RegisterSet *reg_set = reg_ctx->GetRegisterSet (set_idx);
if (reg_set &&
((reg_set->name && strcasecmp (reg_set->name, name) == 0) ||
(reg_set->short_name && strcasecmp (reg_set->short_name, name) == 0)))
{
value_sp = ValueObjectRegisterSet::Create (frame, reg_ctx, set_idx);
sb_value.SetSP (value_sp);
break;
}
}
}
}
break;
case eValueTypeConstResult: // constant result variables
{
ConstString const_name(name);
ClangExpressionVariableSP expr_var_sp (target->GetPersistentVariables().GetVariable (const_name));
if (expr_var_sp)
{
value_sp = expr_var_sp->GetValueObject();
sb_value.SetSP (value_sp);
}
}
break;
default:
break;
}
}
else
{
if (log)
log->Printf ("SBFrame(%p)::FindValue () => error: process is running", frame);
}
}
if (log)
log->Printf ("SBFrame(%p)::FindVariableInScope (name=\"%s\", value_type=%i) => SBValue(%p)",
frame, name, value_type, value_sp.get());
return sb_value;
}
bool
SBFrame::IsEqual (const SBFrame &that) const
{
lldb::StackFrameSP this_sp = GetFrameSP();
lldb::StackFrameSP that_sp = that.GetFrameSP();
return (this_sp && that_sp && this_sp->GetStackID() == that_sp->GetStackID());
}
bool
SBFrame::operator == (const SBFrame &rhs) const
{
return IsEqual(rhs);
}
bool
SBFrame::operator != (const SBFrame &rhs) const
{
return !IsEqual(rhs);
}
SBThread
SBFrame::GetThread () const
{
LogSP log(GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
ExecutionContext exe_ctx(m_opaque_sp.get());
ThreadSP thread_sp (exe_ctx.GetThreadSP());
SBThread sb_thread (thread_sp);
if (log)
{
SBStream sstr;
sb_thread.GetDescription (sstr);
log->Printf ("SBFrame(%p)::GetThread () => SBThread(%p): %s",
exe_ctx.GetFramePtr(),
thread_sp.get(),
sstr.GetData());
}
return sb_thread;
}
const char *
SBFrame::Disassemble () const
{
LogSP log(GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
const char *disassembly = NULL;
ExecutionContext exe_ctx(m_opaque_sp.get());
StackFrame *frame = exe_ctx.GetFramePtr();
Target *target = exe_ctx.GetTargetPtr();
if (frame && target)
{
Process::StopLocker stop_locker;
if (stop_locker.TryLock(&exe_ctx.GetProcessPtr()->GetRunLock()))
{
Mutex::Locker api_locker (target->GetAPIMutex());
disassembly = frame->Disassemble();
}
else
{
if (log)
log->Printf ("SBFrame(%p)::Disassemble () => error: process is running", frame);
}
}
if (log)
log->Printf ("SBFrame(%p)::Disassemble () => %s", frame, disassembly);
return disassembly;
}
SBValueList
SBFrame::GetVariables (bool arguments,
bool locals,
bool statics,
bool in_scope_only)
{
SBValueList value_list;
ExecutionContext exe_ctx(m_opaque_sp.get());
StackFrame *frame = exe_ctx.GetFramePtr();
Target *target = exe_ctx.GetTargetPtr();
if (frame && target)
{
lldb::DynamicValueType use_dynamic = frame->CalculateTarget()->GetPreferDynamicValue();
value_list = GetVariables (arguments, locals, statics, in_scope_only, use_dynamic);
}
return value_list;
}
SBValueList
SBFrame::GetVariables (bool arguments,
bool locals,
bool statics,
bool in_scope_only,
lldb::DynamicValueType use_dynamic)
{
LogSP log(GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
SBValueList value_list;
ExecutionContext exe_ctx(m_opaque_sp.get());
StackFrame *frame = exe_ctx.GetFramePtr();
Target *target = exe_ctx.GetTargetPtr();
if (log)
log->Printf ("SBFrame(%p)::GetVariables (arguments=%i, locals=%i, statics=%i, in_scope_only=%i)",
frame,
arguments,
locals,
statics,
in_scope_only);
if (frame && target)
{
Process::StopLocker stop_locker;
if (stop_locker.TryLock(&exe_ctx.GetProcessPtr()->GetRunLock()))
{
size_t i;
VariableList *variable_list = NULL;
// Scope for locker
{
Mutex::Locker api_locker (target->GetAPIMutex());
variable_list = frame->GetVariableList(true);
}
if (variable_list)
{
const size_t num_variables = variable_list->GetSize();
if (num_variables)
{
for (i = 0; i < num_variables; ++i)
{
VariableSP variable_sp (variable_list->GetVariableAtIndex(i));
if (variable_sp)
{
bool add_variable = false;
switch (variable_sp->GetScope())
{
case eValueTypeVariableGlobal:
case eValueTypeVariableStatic:
add_variable = statics;
break;
case eValueTypeVariableArgument:
add_variable = arguments;
break;
case eValueTypeVariableLocal:
add_variable = locals;
break;
default:
break;
}
if (add_variable)
{
if (in_scope_only && !variable_sp->IsInScope(frame))
continue;
value_list.Append(frame->GetValueObjectForFrameVariable (variable_sp, use_dynamic));
}
}
}
}
}
}
else
{
if (log)
log->Printf ("SBFrame(%p)::GetVariables () => error: process is running", frame);
}
}
if (log)
{
log->Printf ("SBFrame(%p)::GetVariables (...) => SBValueList(%p)", frame,
value_list.get());
}
return value_list;
}
SBValueList
SBFrame::GetRegisters ()
{
LogSP log(GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
SBValueList value_list;
ExecutionContext exe_ctx(m_opaque_sp.get());
StackFrame *frame = exe_ctx.GetFramePtr();
Target *target = exe_ctx.GetTargetPtr();
if (frame && target)
{
Process::StopLocker stop_locker;
if (stop_locker.TryLock(&exe_ctx.GetProcessPtr()->GetRunLock()))
{
Mutex::Locker api_locker (target->GetAPIMutex());
RegisterContextSP reg_ctx (frame->GetRegisterContext());
if (reg_ctx)
{
const uint32_t num_sets = reg_ctx->GetRegisterSetCount();
for (uint32_t set_idx = 0; set_idx < num_sets; ++set_idx)
{
value_list.Append(ValueObjectRegisterSet::Create (frame, reg_ctx, set_idx));
}
}
}
else
{
if (log)
log->Printf ("SBFrame(%p)::GetRegisters () => error: process is running", frame);
}
}
if (log)
log->Printf ("SBFrame(%p)::GetRegisters () => SBValueList(%p)", frame, value_list.get());
return value_list;
}
bool
SBFrame::GetDescription (SBStream &description)
{
Stream &strm = description.ref();
ExecutionContext exe_ctx(m_opaque_sp.get());
StackFrame *frame = exe_ctx.GetFramePtr();
Target *target = exe_ctx.GetTargetPtr();
if (frame && target)
{
Process::StopLocker stop_locker;
if (stop_locker.TryLock(&exe_ctx.GetProcessPtr()->GetRunLock()))
{
Mutex::Locker api_locker (target->GetAPIMutex());
frame->DumpUsingSettingsFormat (&strm);
}
else
{
LogSP log(GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
if (log)
log->Printf ("SBFrame(%p)::GetDescription () => error: process is running", frame);
}
}
else
strm.PutCString ("No value");
return true;
}
SBValue
SBFrame::EvaluateExpression (const char *expr)
{
SBValue result;
ExecutionContext exe_ctx(m_opaque_sp.get());
StackFrame *frame = exe_ctx.GetFramePtr();
Target *target = exe_ctx.GetTargetPtr();
if (frame && target)
{
lldb::DynamicValueType use_dynamic = frame->CalculateTarget()->GetPreferDynamicValue();
result = EvaluateExpression (expr, use_dynamic);
}
return result;
}
SBValue
SBFrame::EvaluateExpression (const char *expr, lldb::DynamicValueType fetch_dynamic_value)
{
LogSP log(GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
LogSP expr_log(GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
ExecutionResults exe_results;
SBValue expr_result;
ValueObjectSP expr_value_sp;
ExecutionContext exe_ctx(m_opaque_sp.get());
StackFrame *frame = exe_ctx.GetFramePtr();
Target *target = exe_ctx.GetTargetPtr();
if (log)
log->Printf ("SBFrame(%p)::EvaluateExpression (expr=\"%s\")...", frame, expr);
if (frame && target)
{
Process::StopLocker stop_locker;
if (stop_locker.TryLock(&exe_ctx.GetProcessPtr()->GetRunLock()))
{
Mutex::Locker api_locker (target->GetAPIMutex());
StreamString frame_description;
frame->DumpUsingSettingsFormat (&frame_description);
Host::SetCrashDescriptionWithFormat ("SBFrame::EvaluateExpression (expr = \"%s\", fetch_dynamic_value = %u) %s",
expr, fetch_dynamic_value, frame_description.GetString().c_str());
const bool coerce_to_id = false;
const bool unwind_on_error = true;
const bool keep_in_memory = false;
exe_results = target->EvaluateExpression (expr,
frame,
eExecutionPolicyOnlyWhenNeeded,
coerce_to_id,
unwind_on_error,
keep_in_memory,
fetch_dynamic_value,
expr_value_sp);
expr_result.SetSP(expr_value_sp);
Host::SetCrashDescription (NULL);
}
else
{
if (log)
log->Printf ("SBFrame(%p)::EvaluateExpression () => error: process is running", frame);
}
}
#ifndef LLDB_DISABLE_PYTHON
if (expr_log)
expr_log->Printf("** [SBFrame::EvaluateExpression] Expression result is %s, summary %s **",
expr_result.GetValue(),
expr_result.GetSummary());
if (log)
log->Printf ("SBFrame(%p)::EvaluateExpression (expr=\"%s\") => SBValue(%p) (execution result=%d)",
frame,
expr,
expr_value_sp.get(),
exe_results);
#endif
return expr_result;
}
bool
SBFrame::IsInlined()
{
ExecutionContext exe_ctx(m_opaque_sp.get());
StackFrame *frame = exe_ctx.GetFramePtr();
Target *target = exe_ctx.GetTargetPtr();
if (frame && target)
{
Process::StopLocker stop_locker;
if (stop_locker.TryLock(&exe_ctx.GetProcessPtr()->GetRunLock()))
{
Block *block = frame->GetSymbolContext(eSymbolContextBlock).block;
if (block)
return block->GetContainingInlinedBlock () != NULL;
}
else
{
LogSP log(GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
if (log)
log->Printf ("SBFrame(%p)::IsInlined () => error: process is running", frame);
}
}
return false;
}
const char *
SBFrame::GetFunctionName()
{
const char *name = NULL;
ExecutionContext exe_ctx(m_opaque_sp.get());
StackFrame *frame = exe_ctx.GetFramePtr();
Target *target = exe_ctx.GetTargetPtr();
if (frame && target)
{
Process::StopLocker stop_locker;
if (stop_locker.TryLock(&exe_ctx.GetProcessPtr()->GetRunLock()))
{
SymbolContext sc (frame->GetSymbolContext(eSymbolContextFunction | eSymbolContextBlock | eSymbolContextSymbol));
if (sc.block)
{
Block *inlined_block = sc.block->GetContainingInlinedBlock ();
if (inlined_block)
{
const InlineFunctionInfo* inlined_info = inlined_block->GetInlinedFunctionInfo();
name = inlined_info->GetName().AsCString();
}
}
if (name == NULL)
{
if (sc.function)
name = sc.function->GetName().GetCString();
}
if (name == NULL)
{
if (sc.symbol)
name = sc.symbol->GetName().GetCString();
}
}
else
{
LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
if (log)
log->Printf ("SBFrame(%p)::GetFunctionName() => error: process is running", frame);
}
}
return name;
}