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https://github.com/intel/llvm.git
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95897c6a3a
parent, sibling and first child block, and access to the inline function information. Added an accessor the StackFrame: Block * lldb_private::StackFrame::GetFrameBlock(); LLDB represents inline functions as lexical blocks that have inlined function information in them. The function above allows us to easily get the top most lexical block that defines a stack frame. When there are no inline functions in function, the block returned ends up being the top most block for the function. When the PC is in an inlined funciton for a frame, this will return the first parent block that has inlined function information. The other accessor: StackFrame::GetBlock() will return the deepest block that matches the frame's PC value. Since most debuggers want to display all variables in the current frame, the Block returned by StackFrame::GetFrameBlock can be used to retrieve all variables for the current frame. Fixed the lldb_private::Block::DumpStopContext(...) to properly display inline frames a block should display all of its inlined functions. Prior to this fix, one of the call sites was being skipped. This is a separate code path from the current default where inlined functions get their own frames. Fixed an issue where a block would always grab variables for any child inline function blocks. llvm-svn: 113195
378 lines
9.2 KiB
C++
378 lines
9.2 KiB
C++
//===-- SBFrame.cpp ---------------------------------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "lldb/API/SBFrame.h"
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#include <string>
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#include <algorithm>
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#include "lldb/lldb-types.h"
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#include "lldb/Core/Address.h"
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#include "lldb/Core/ConstString.h"
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#include "lldb/Core/Stream.h"
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#include "lldb/Core/StreamFile.h"
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#include "lldb/Core/ValueObjectRegister.h"
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#include "lldb/Core/ValueObjectVariable.h"
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#include "lldb/Symbol/Block.h"
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#include "lldb/Symbol/SymbolContext.h"
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#include "lldb/Symbol/VariableList.h"
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#include "lldb/Symbol/Variable.h"
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#include "lldb/Target/ExecutionContext.h"
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#include "lldb/Target/Target.h"
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#include "lldb/Target/Process.h"
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#include "lldb/Target/RegisterContext.h"
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#include "lldb/Target/StackFrame.h"
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#include "lldb/Target/Thread.h"
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#include "lldb/API/SBDebugger.h"
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#include "lldb/API/SBValue.h"
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#include "lldb/API/SBAddress.h"
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#include "lldb/API/SBSymbolContext.h"
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#include "lldb/API/SBThread.h"
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using namespace lldb;
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using namespace lldb_private;
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SBFrame::SBFrame () :
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m_opaque_sp ()
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{
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}
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SBFrame::SBFrame (const lldb::StackFrameSP &lldb_object_sp) :
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m_opaque_sp (lldb_object_sp)
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{
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}
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SBFrame::~SBFrame()
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{
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}
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void
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SBFrame::SetFrame (const lldb::StackFrameSP &lldb_object_sp)
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{
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m_opaque_sp = lldb_object_sp;
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}
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bool
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SBFrame::IsValid() const
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{
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return (m_opaque_sp.get() != NULL);
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}
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SBSymbolContext
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SBFrame::GetSymbolContext (uint32_t resolve_scope) const
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{
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SBSymbolContext sb_sym_ctx;
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if (m_opaque_sp)
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sb_sym_ctx.SetSymbolContext(&m_opaque_sp->GetSymbolContext (resolve_scope));
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return sb_sym_ctx;
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}
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SBModule
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SBFrame::GetModule () const
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{
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SBModule sb_module (m_opaque_sp->GetSymbolContext (eSymbolContextModule).module_sp);
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return sb_module;
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}
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SBCompileUnit
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SBFrame::GetCompileUnit () const
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{
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SBCompileUnit sb_comp_unit(m_opaque_sp->GetSymbolContext (eSymbolContextCompUnit).comp_unit);
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return sb_comp_unit;
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}
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SBFunction
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SBFrame::GetFunction () const
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{
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SBFunction sb_function(m_opaque_sp->GetSymbolContext (eSymbolContextFunction).function);
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return sb_function;
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}
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SBBlock
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SBFrame::GetBlock () const
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{
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SBBlock sb_block(m_opaque_sp->GetSymbolContext (eSymbolContextBlock).block);
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return sb_block;
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}
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SBBlock
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SBFrame::GetFrameBlock () const
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{
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SBBlock sb_block(m_opaque_sp->GetFrameBlock ());
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return sb_block;
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}
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SBLineEntry
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SBFrame::GetLineEntry () const
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{
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SBLineEntry sb_line_entry(&m_opaque_sp->GetSymbolContext (eSymbolContextLineEntry).line_entry);
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return sb_line_entry;
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}
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uint32_t
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SBFrame::GetFrameID () const
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{
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if (m_opaque_sp)
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return m_opaque_sp->GetFrameIndex ();
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else
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return UINT32_MAX;
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}
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lldb::addr_t
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SBFrame::GetPC () const
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{
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if (m_opaque_sp)
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return m_opaque_sp->GetFrameCodeAddress().GetLoadAddress (&m_opaque_sp->GetThread().GetProcess());
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return LLDB_INVALID_ADDRESS;
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}
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bool
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SBFrame::SetPC (lldb::addr_t new_pc)
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{
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if (m_opaque_sp)
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return m_opaque_sp->GetRegisterContext()->SetPC (new_pc);
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return false;
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}
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lldb::addr_t
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SBFrame::GetSP () const
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{
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if (m_opaque_sp)
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return m_opaque_sp->GetRegisterContext()->GetSP();
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return LLDB_INVALID_ADDRESS;
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}
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lldb::addr_t
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SBFrame::GetFP () const
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{
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if (m_opaque_sp)
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return m_opaque_sp->GetRegisterContext()->GetFP();
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return LLDB_INVALID_ADDRESS;
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}
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SBAddress
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SBFrame::GetPCAddress () const
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{
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SBAddress sb_addr;
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if (m_opaque_sp)
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sb_addr.SetAddress (&m_opaque_sp->GetFrameCodeAddress());
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return sb_addr;
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}
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void
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SBFrame::Clear()
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{
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m_opaque_sp.reset();
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}
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SBValue
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SBFrame::LookupVar (const char *var_name)
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{
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lldb::VariableSP var_sp;
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if (IsValid ())
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{
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lldb_private::VariableList variable_list;
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SBSymbolContext sc = GetSymbolContext (eSymbolContextEverything);
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SBBlock block = sc.GetBlock();
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if (block.IsValid())
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block.AppendVariables (true, true, &variable_list);
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const uint32_t num_variables = variable_list.GetSize();
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bool found = false;
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for (uint32_t i = 0; i < num_variables && !found; ++i)
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{
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var_sp = variable_list.GetVariableAtIndex(i);
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if (var_sp
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&& (var_sp.get()->GetName() == lldb_private::ConstString(var_name)))
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found = true;
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}
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if (!found)
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var_sp.reset();
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}
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SBValue sb_value (ValueObjectSP (new ValueObjectVariable (var_sp)));
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return sb_value;
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}
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SBValue
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SBFrame::LookupVarInScope (const char *var_name, const char *scope)
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{
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lldb::VariableSP var_sp;
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if (IsValid())
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{
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std::string scope_str = scope;
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lldb::ValueType var_scope = eValueTypeInvalid;
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// Convert scope_str to be all lowercase;
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std::transform (scope_str.begin(), scope_str.end(), scope_str.begin(), ::tolower);
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if (scope_str.compare ("global") == 0)
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var_scope = eValueTypeVariableGlobal;
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else if (scope_str.compare ("local") == 0)
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var_scope = eValueTypeVariableLocal;
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else if (scope_str.compare ("parameter") == 0)
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var_scope = eValueTypeVariableArgument;
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if (var_scope != eValueTypeInvalid)
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{
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lldb_private::VariableList variable_list;
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SBSymbolContext sc = GetSymbolContext (eSymbolContextEverything);
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SBBlock block = sc.GetBlock();
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if (block.IsValid())
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block.AppendVariables (true, true, &variable_list);
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const uint32_t num_variables = variable_list.GetSize();
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bool found = false;
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for (uint32_t i = 0; i < num_variables && !found; ++i)
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{
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var_sp = variable_list.GetVariableAtIndex(i);
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if (var_sp
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&& (var_sp.get()->GetName() == lldb_private::ConstString(var_name))
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&& var_sp.get()->GetScope() == var_scope)
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found = true;
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}
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if (!found)
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var_sp.reset();
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}
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}
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SBValue sb_value (ValueObjectSP (new ValueObjectVariable (var_sp)));
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return sb_value;
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}
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bool
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SBFrame::operator == (const SBFrame &rhs) const
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{
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return m_opaque_sp.get() == rhs.m_opaque_sp.get();
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}
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bool
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SBFrame::operator != (const SBFrame &rhs) const
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{
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return m_opaque_sp.get() != rhs.m_opaque_sp.get();
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}
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lldb_private::StackFrame *
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SBFrame::operator->() const
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{
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return m_opaque_sp.get();
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}
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lldb_private::StackFrame *
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SBFrame::get() const
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{
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return m_opaque_sp.get();
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}
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SBThread
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SBFrame::GetThread () const
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{
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SBThread sb_thread (m_opaque_sp->GetThread().GetSP());
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return sb_thread;
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}
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const char *
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SBFrame::Disassemble () const
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{
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if (m_opaque_sp)
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return m_opaque_sp->Disassemble();
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return NULL;
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}
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lldb_private::StackFrame *
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SBFrame::GetLLDBObjectPtr ()
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{
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return m_opaque_sp.get();
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}
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SBValueList
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SBFrame::GetVariables (bool arguments,
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bool locals,
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bool statics,
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bool in_scope_only)
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{
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SBValueList value_list;
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if (m_opaque_sp)
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{
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size_t i;
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VariableList *variable_list = m_opaque_sp->GetVariableList(true);
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if (variable_list)
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{
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const size_t num_variables = variable_list->GetSize();
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if (num_variables)
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{
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for (i = 0; i < num_variables; ++i)
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{
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VariableSP variable_sp (variable_list->GetVariableAtIndex(i));
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if (variable_sp)
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{
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bool add_variable = false;
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switch (variable_sp->GetScope())
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{
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case eValueTypeVariableGlobal:
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case eValueTypeVariableStatic:
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add_variable = statics;
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break;
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case eValueTypeVariableArgument:
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add_variable = arguments;
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break;
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case eValueTypeVariableLocal:
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add_variable = locals;
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break;
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default:
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break;
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}
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if (add_variable)
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{
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if (in_scope_only && !variable_sp->IsInScope(m_opaque_sp.get()))
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continue;
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value_list.Append(m_opaque_sp->GetValueObjectForFrameVariable (variable_sp));
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}
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}
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}
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}
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}
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}
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return value_list;
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}
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lldb::SBValueList
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SBFrame::GetRegisters ()
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{
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SBValueList value_list;
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if (m_opaque_sp)
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{
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RegisterContext *reg_ctx = m_opaque_sp->GetRegisterContext();
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if (reg_ctx)
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{
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const uint32_t num_sets = reg_ctx->GetRegisterSetCount();
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for (uint32_t set_idx = 0; set_idx < num_sets; ++set_idx)
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{
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value_list.Append(ValueObjectSP (new ValueObjectRegisterSet (reg_ctx, set_idx)));
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}
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}
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}
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return value_list;
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}
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