mirror of
https://github.com/intel/llvm.git
synced 2026-01-14 11:57:39 +08:00
d9e416c0ea
the lldb_private::StackFrame objects hold onto a weak pointer to the thread object. The lldb_private::StackFrame objects the the most volatile objects we have as when we are doing single stepping, frames can often get lost or thrown away, only to be re-created as another object that still refers to the same frame. We have another bug tracking that. But we need to be able to have frames no longer be able to get the thread when they are not part of a thread anymore, and this is the first step (this fix makes that possible but doesn't implement it yet). Also changed lldb_private::ExecutionContextScope to return shared pointers to all objects in the execution context to further thread harden the internals. llvm-svn: 150871
1048 lines
31 KiB
C++
1048 lines
31 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"
|
|
|
|
namespace lldb_private {
|
|
|
|
class StackFrameImpl
|
|
{
|
|
public:
|
|
StackFrameImpl (const lldb::StackFrameSP &frame_sp) :
|
|
m_frame_wp (frame_sp),
|
|
m_thread_wp (),
|
|
m_stack_id ()
|
|
{
|
|
if (frame_sp)
|
|
{
|
|
m_thread_wp = frame_sp->GetThread();
|
|
m_stack_id = frame_sp->GetStackID();
|
|
}
|
|
}
|
|
|
|
~StackFrameImpl()
|
|
{
|
|
}
|
|
|
|
lldb::StackFrameSP
|
|
GetFrameSP ()
|
|
{
|
|
lldb::StackFrameSP frame_sp;
|
|
// We have a weak pointer to our thread, which might
|
|
// be NULL'ed out if the thread went away, so first
|
|
// make sure our thread is still alive.
|
|
lldb::ThreadSP thread_sp (m_thread_wp.lock());
|
|
if (thread_sp)
|
|
{
|
|
// Our thread is still here, check if our frame
|
|
// is still alive as well.
|
|
frame_sp = m_frame_wp.lock();
|
|
if (frame_sp)
|
|
{
|
|
// Our frame is still alive, make sure that our thread
|
|
// still has this exact frame...
|
|
lldb::StackFrameSP tmp_frame_sp (thread_sp->GetStackFrameAtIndex (frame_sp->GetFrameIndex()));
|
|
if (tmp_frame_sp == frame_sp)
|
|
return frame_sp;
|
|
}
|
|
// The original stack frame might have gone away,
|
|
// we need to check for the frame by stack ID
|
|
frame_sp = thread_sp->GetFrameWithStackID (m_stack_id);
|
|
m_frame_wp = frame_sp;
|
|
}
|
|
return frame_sp;
|
|
}
|
|
|
|
void
|
|
SetFrameSP (const lldb::StackFrameSP &frame_sp)
|
|
{
|
|
if (frame_sp)
|
|
{
|
|
m_frame_wp = frame_sp;
|
|
m_thread_wp = frame_sp->GetThread();
|
|
m_stack_id = frame_sp->GetStackID();
|
|
}
|
|
else
|
|
{
|
|
m_frame_wp.reset();
|
|
m_thread_wp.reset();
|
|
m_stack_id.Clear();
|
|
}
|
|
}
|
|
|
|
protected:
|
|
lldb::StackFrameWP m_frame_wp;
|
|
lldb::ThreadWP m_thread_wp;
|
|
StackID m_stack_id;
|
|
};
|
|
} // namespace lldb_private
|
|
|
|
using namespace lldb;
|
|
using namespace lldb_private;
|
|
|
|
|
|
SBFrame::SBFrame () :
|
|
m_opaque_sp ()
|
|
{
|
|
}
|
|
|
|
SBFrame::SBFrame (const StackFrameSP &lldb_object_sp) :
|
|
m_opaque_sp (new StackFrameImpl (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 (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
|
|
{
|
|
StackFrameImplSP impl_sp (m_opaque_sp);
|
|
StackFrameSP frame_sp;
|
|
if (impl_sp)
|
|
frame_sp = impl_sp->GetFrameSP();
|
|
return frame_sp;
|
|
}
|
|
|
|
void
|
|
SBFrame::SetFrameSP (const StackFrameSP &lldb_object_sp)
|
|
{
|
|
if (lldb_object_sp)
|
|
{
|
|
if (m_opaque_sp)
|
|
{
|
|
StackFrameImplSP impl_sp (m_opaque_sp);
|
|
if (impl_sp)
|
|
impl_sp->SetFrameSP (lldb_object_sp);
|
|
}
|
|
else
|
|
{
|
|
m_opaque_sp = StackFrameImplSP (new StackFrameImpl(lldb_object_sp));
|
|
}
|
|
}
|
|
else
|
|
{
|
|
m_opaque_sp.reset();
|
|
}
|
|
}
|
|
|
|
bool
|
|
SBFrame::IsValid() const
|
|
{
|
|
StackFrameImplSP impl_sp (m_opaque_sp);
|
|
if (impl_sp)
|
|
return (impl_sp->GetFrameSP().get() != NULL);
|
|
return false;
|
|
}
|
|
|
|
SBSymbolContext
|
|
SBFrame::GetSymbolContext (uint32_t resolve_scope) const
|
|
{
|
|
|
|
SBSymbolContext sb_sym_ctx;
|
|
ExecutionContext exe_ctx(GetFrameSP());
|
|
StackFrame *frame = exe_ctx.GetFramePtr();
|
|
Target *target = exe_ctx.GetTargetPtr();
|
|
if (frame && target)
|
|
{
|
|
Mutex::Locker api_locker (target->GetAPIMutex());
|
|
sb_sym_ctx.SetSymbolContext(&frame->GetSymbolContext (resolve_scope));
|
|
}
|
|
|
|
LogSP log(GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
|
|
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
|
|
{
|
|
SBModule sb_module;
|
|
ModuleSP module_sp;
|
|
ExecutionContext exe_ctx(GetFrameSP());
|
|
StackFrame *frame = exe_ctx.GetFramePtr();
|
|
Target *target = exe_ctx.GetTargetPtr();
|
|
if (frame && target)
|
|
{
|
|
Mutex::Locker api_locker (target->GetAPIMutex());
|
|
module_sp = frame->GetSymbolContext (eSymbolContextModule).module_sp;
|
|
sb_module.SetSP (module_sp);
|
|
}
|
|
|
|
LogSP log(GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
|
|
if (log)
|
|
log->Printf ("SBFrame(%p)::GetModule () => SBModule(%p)",
|
|
frame, module_sp.get());
|
|
|
|
return sb_module;
|
|
}
|
|
|
|
SBCompileUnit
|
|
SBFrame::GetCompileUnit () const
|
|
{
|
|
SBCompileUnit sb_comp_unit;
|
|
ExecutionContext exe_ctx(GetFrameSP());
|
|
StackFrame *frame = exe_ctx.GetFramePtr();
|
|
Target *target = exe_ctx.GetTargetPtr();
|
|
if (frame && target)
|
|
{
|
|
Mutex::Locker api_locker (target->GetAPIMutex());
|
|
sb_comp_unit.reset (frame->GetSymbolContext (eSymbolContextCompUnit).comp_unit);
|
|
}
|
|
LogSP log(GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
|
|
if (log)
|
|
log->Printf ("SBFrame(%p)::GetModule () => SBCompileUnit(%p)",
|
|
frame, sb_comp_unit.get());
|
|
|
|
return sb_comp_unit;
|
|
}
|
|
|
|
SBFunction
|
|
SBFrame::GetFunction () const
|
|
{
|
|
SBFunction sb_function;
|
|
ExecutionContext exe_ctx(GetFrameSP());
|
|
StackFrame *frame = exe_ctx.GetFramePtr();
|
|
Target *target = exe_ctx.GetTargetPtr();
|
|
if (frame && target)
|
|
{
|
|
Mutex::Locker api_locker (target->GetAPIMutex());
|
|
sb_function.reset(frame->GetSymbolContext (eSymbolContextFunction).function);
|
|
}
|
|
LogSP log(GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
|
|
if (log)
|
|
log->Printf ("SBFrame(%p)::GetFunction () => SBFunction(%p)",
|
|
frame, sb_function.get());
|
|
|
|
return sb_function;
|
|
}
|
|
|
|
SBSymbol
|
|
SBFrame::GetSymbol () const
|
|
{
|
|
SBSymbol sb_symbol;
|
|
ExecutionContext exe_ctx(GetFrameSP());
|
|
StackFrame *frame = exe_ctx.GetFramePtr();
|
|
Target *target = exe_ctx.GetTargetPtr();
|
|
if (frame && target)
|
|
{
|
|
Mutex::Locker api_locker (target->GetAPIMutex());
|
|
sb_symbol.reset(frame->GetSymbolContext (eSymbolContextSymbol).symbol);
|
|
}
|
|
LogSP log(GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
|
|
if (log)
|
|
log->Printf ("SBFrame(%p)::GetSymbol () => SBSymbol(%p)",
|
|
frame, sb_symbol.get());
|
|
return sb_symbol;
|
|
}
|
|
|
|
SBBlock
|
|
SBFrame::GetBlock () const
|
|
{
|
|
SBBlock sb_block;
|
|
ExecutionContext exe_ctx(GetFrameSP());
|
|
StackFrame *frame = exe_ctx.GetFramePtr();
|
|
Target *target = exe_ctx.GetTargetPtr();
|
|
if (frame && target)
|
|
{
|
|
Mutex::Locker api_locker (target->GetAPIMutex());
|
|
sb_block.SetPtr (frame->GetSymbolContext (eSymbolContextBlock).block);
|
|
}
|
|
LogSP log(GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
|
|
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(GetFrameSP());
|
|
StackFrame *frame = exe_ctx.GetFramePtr();
|
|
Target *target = exe_ctx.GetTargetPtr();
|
|
if (frame && target)
|
|
{
|
|
Mutex::Locker api_locker (target->GetAPIMutex());
|
|
sb_block.SetPtr(frame->GetFrameBlock ());
|
|
}
|
|
LogSP log(GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
|
|
if (log)
|
|
log->Printf ("SBFrame(%p)::GetFrameBlock () => SBBlock(%p)",
|
|
frame, sb_block.GetPtr());
|
|
return sb_block;
|
|
}
|
|
|
|
SBLineEntry
|
|
SBFrame::GetLineEntry () const
|
|
{
|
|
SBLineEntry sb_line_entry;
|
|
ExecutionContext exe_ctx(GetFrameSP());
|
|
StackFrame *frame = exe_ctx.GetFramePtr();
|
|
Target *target = exe_ctx.GetTargetPtr();
|
|
if (frame && target)
|
|
{
|
|
Mutex::Locker api_locker (target->GetAPIMutex());
|
|
sb_line_entry.SetLineEntry (frame->GetSymbolContext (eSymbolContextLineEntry).line_entry);
|
|
}
|
|
LogSP log(GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
|
|
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(GetFrameSP());
|
|
StackFrame *frame = exe_ctx.GetFramePtr();
|
|
Target *target = exe_ctx.GetTargetPtr();
|
|
if (frame && target)
|
|
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
|
|
{
|
|
addr_t addr = LLDB_INVALID_ADDRESS;
|
|
ExecutionContext exe_ctx(GetFrameSP());
|
|
StackFrame *frame = exe_ctx.GetFramePtr();
|
|
Target *target = exe_ctx.GetTargetPtr();
|
|
if (frame && target)
|
|
{
|
|
Mutex::Locker api_locker (target->GetAPIMutex());
|
|
addr = frame->GetFrameCodeAddress().GetOpcodeLoadAddress (target);
|
|
}
|
|
|
|
LogSP log(GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
|
|
if (log)
|
|
log->Printf ("SBFrame(%p)::GetPC () => 0x%llx", frame, addr);
|
|
|
|
return addr;
|
|
}
|
|
|
|
bool
|
|
SBFrame::SetPC (addr_t new_pc)
|
|
{
|
|
bool ret_val = false;
|
|
ExecutionContext exe_ctx(GetFrameSP());
|
|
StackFrame *frame = exe_ctx.GetFramePtr();
|
|
Target *target = exe_ctx.GetTargetPtr();
|
|
if (frame && target)
|
|
{
|
|
Mutex::Locker api_locker (target->GetAPIMutex());
|
|
ret_val = frame->GetRegisterContext()->SetPC (new_pc);
|
|
}
|
|
|
|
LogSP log(GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
|
|
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
|
|
{
|
|
addr_t addr = LLDB_INVALID_ADDRESS;
|
|
ExecutionContext exe_ctx(GetFrameSP());
|
|
StackFrame *frame = exe_ctx.GetFramePtr();
|
|
Target *target = exe_ctx.GetTargetPtr();
|
|
if (frame && target)
|
|
{
|
|
Mutex::Locker api_locker (target->GetAPIMutex());
|
|
addr = frame->GetRegisterContext()->GetSP();
|
|
}
|
|
LogSP log(GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
|
|
if (log)
|
|
log->Printf ("SBFrame(%p)::GetSP () => 0x%llx", frame, addr);
|
|
|
|
return addr;
|
|
}
|
|
|
|
|
|
addr_t
|
|
SBFrame::GetFP () const
|
|
{
|
|
addr_t addr = LLDB_INVALID_ADDRESS;
|
|
ExecutionContext exe_ctx(GetFrameSP());
|
|
StackFrame *frame = exe_ctx.GetFramePtr();
|
|
Target *target = exe_ctx.GetTargetPtr();
|
|
if (frame && target)
|
|
{
|
|
Mutex::Locker api_locker (target->GetAPIMutex());
|
|
addr = frame->GetRegisterContext()->GetFP();
|
|
}
|
|
|
|
LogSP log(GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
|
|
if (log)
|
|
log->Printf ("SBFrame(%p)::GetFP () => 0x%llx", frame, addr);
|
|
return addr;
|
|
}
|
|
|
|
|
|
SBAddress
|
|
SBFrame::GetPCAddress () const
|
|
{
|
|
SBAddress sb_addr;
|
|
ExecutionContext exe_ctx(GetFrameSP());
|
|
StackFrame *frame = exe_ctx.GetFramePtr();
|
|
Target *target = exe_ctx.GetTargetPtr();
|
|
if (frame && target)
|
|
{
|
|
Mutex::Locker api_locker (target->GetAPIMutex());
|
|
sb_addr.SetAddress (&frame->GetFrameCodeAddress());
|
|
}
|
|
LogSP log(GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
|
|
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(GetFrameSP());
|
|
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(GetFrameSP());
|
|
StackFrame *frame = exe_ctx.GetFramePtr();
|
|
Target *target = exe_ctx.GetTargetPtr();
|
|
if (frame && target && var_path && var_path[0])
|
|
{
|
|
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);
|
|
}
|
|
return sb_value;
|
|
}
|
|
|
|
SBValue
|
|
SBFrame::FindVariable (const char *name)
|
|
{
|
|
SBValue value;
|
|
ExecutionContext exe_ctx(GetFrameSP());
|
|
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)
|
|
{
|
|
VariableSP var_sp;
|
|
SBValue sb_value;
|
|
ValueObjectSP value_sp;
|
|
ExecutionContext exe_ctx(GetFrameSP());
|
|
StackFrame *frame = exe_ctx.GetFramePtr();
|
|
Target *target = exe_ctx.GetTargetPtr();
|
|
if (frame && target && name && name[0])
|
|
{
|
|
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);
|
|
}
|
|
|
|
}
|
|
|
|
LogSP log(GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
|
|
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(GetFrameSP());
|
|
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)
|
|
{
|
|
SBValue sb_value;
|
|
ValueObjectSP value_sp;
|
|
ExecutionContext exe_ctx(GetFrameSP());
|
|
StackFrame *frame = exe_ctx.GetFramePtr();
|
|
Target *target = exe_ctx.GetTargetPtr();
|
|
if (frame && target && name && name[0])
|
|
{
|
|
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;
|
|
}
|
|
}
|
|
|
|
LogSP log(GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
|
|
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::operator == (const SBFrame &rhs) const
|
|
{
|
|
return GetFrameSP().get() == rhs.GetFrameSP().get();
|
|
}
|
|
|
|
bool
|
|
SBFrame::operator != (const SBFrame &rhs) const
|
|
{
|
|
return GetFrameSP().get() != rhs.GetFrameSP().get();
|
|
}
|
|
|
|
SBThread
|
|
SBFrame::GetThread () const
|
|
{
|
|
LogSP log(GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
|
|
|
|
ExecutionContext exe_ctx(GetFrameSP());
|
|
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
|
|
{
|
|
const char *disassembly = NULL;
|
|
ExecutionContext exe_ctx(GetFrameSP());
|
|
StackFrame *frame = exe_ctx.GetFramePtr();
|
|
Target *target = exe_ctx.GetTargetPtr();
|
|
if (frame && target)
|
|
{
|
|
Mutex::Locker api_locker (target->GetAPIMutex());
|
|
disassembly = frame->Disassemble();
|
|
}
|
|
LogSP log(GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
|
|
|
|
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(GetFrameSP());
|
|
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(GetFrameSP());
|
|
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)
|
|
{
|
|
|
|
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));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
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(GetFrameSP());
|
|
StackFrame *frame = exe_ctx.GetFramePtr();
|
|
Target *target = exe_ctx.GetTargetPtr();
|
|
if (frame && target)
|
|
{
|
|
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));
|
|
}
|
|
}
|
|
}
|
|
|
|
if (log)
|
|
log->Printf ("SBFrame(%p)::Registers () => SBValueList(%p)", frame, value_list.get());
|
|
|
|
return value_list;
|
|
}
|
|
|
|
bool
|
|
SBFrame::GetDescription (SBStream &description)
|
|
{
|
|
Stream &strm = description.ref();
|
|
|
|
ExecutionContext exe_ctx(GetFrameSP());
|
|
StackFrame *frame = exe_ctx.GetFramePtr();
|
|
Target *target = exe_ctx.GetTargetPtr();
|
|
if (frame && target)
|
|
{
|
|
Mutex::Locker api_locker (target->GetAPIMutex());
|
|
frame->DumpUsingSettingsFormat (&strm);
|
|
}
|
|
else
|
|
strm.PutCString ("No value");
|
|
|
|
return true;
|
|
}
|
|
|
|
SBValue
|
|
SBFrame::EvaluateExpression (const char *expr)
|
|
{
|
|
SBValue result;
|
|
ExecutionContext exe_ctx(GetFrameSP());
|
|
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(GetFrameSP());
|
|
StackFrame *frame = exe_ctx.GetFramePtr();
|
|
Target *target = exe_ctx.GetTargetPtr();
|
|
if (log)
|
|
log->Printf ("SBFrame(%p)::EvaluateExpression (expr=\"%s\")...", frame, expr);
|
|
|
|
if (frame && target)
|
|
{
|
|
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);
|
|
}
|
|
|
|
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);
|
|
|
|
return expr_result;
|
|
}
|
|
|
|
bool
|
|
SBFrame::IsInlined()
|
|
{
|
|
ExecutionContext exe_ctx(GetFrameSP());
|
|
StackFrame *frame = exe_ctx.GetFramePtr();
|
|
Target *target = exe_ctx.GetTargetPtr();
|
|
if (frame && target)
|
|
{
|
|
Block *block = frame->GetSymbolContext(eSymbolContextBlock).block;
|
|
if (block)
|
|
return block->GetContainingInlinedBlock () != NULL;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
const char *
|
|
SBFrame::GetFunctionName()
|
|
{
|
|
const char *name = NULL;
|
|
ExecutionContext exe_ctx(GetFrameSP());
|
|
StackFrame *frame = exe_ctx.GetFramePtr();
|
|
Target *target = exe_ctx.GetTargetPtr();
|
|
if (frame && target)
|
|
{
|
|
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();
|
|
}
|
|
}
|
|
return name;
|
|
}
|
|
|