forked from OSchip/llvm-project
332 lines
9.9 KiB
C++
332 lines
9.9 KiB
C++
//===-- LibStdcpp.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/lldb-python.h"
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#include "lldb/DataFormatters/CXXFormatterFunctions.h"
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#include "lldb/Core/DataBufferHeap.h"
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#include "lldb/Core/Error.h"
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#include "lldb/Core/Stream.h"
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#include "lldb/Core/ValueObject.h"
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#include "lldb/Core/ValueObjectConstResult.h"
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#include "lldb/Host/Endian.h"
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#include "lldb/Symbol/ClangASTContext.h"
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#include "lldb/Target/ObjCLanguageRuntime.h"
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#include "lldb/Target/Target.h"
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using namespace lldb;
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using namespace lldb_private;
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using namespace lldb_private::formatters;
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lldb_private::formatters::LibstdcppVectorBoolSyntheticFrontEnd::LibstdcppVectorBoolSyntheticFrontEnd (lldb::ValueObjectSP valobj_sp) :
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SyntheticChildrenFrontEnd(*valobj_sp.get()),
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m_exe_ctx_ref(),
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m_count(0),
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m_base_data_address(0),
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m_options()
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{
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if (valobj_sp)
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Update();
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m_options.SetCoerceToId(false);
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m_options.SetUnwindOnError(true);
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m_options.SetKeepInMemory(true);
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m_options.SetUseDynamic(lldb::eDynamicCanRunTarget);
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}
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size_t
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lldb_private::formatters::LibstdcppVectorBoolSyntheticFrontEnd::CalculateNumChildren ()
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{
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return m_count;
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}
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lldb::ValueObjectSP
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lldb_private::formatters::LibstdcppVectorBoolSyntheticFrontEnd::GetChildAtIndex (size_t idx)
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{
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if (idx >= m_count)
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return ValueObjectSP();
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if (m_base_data_address == 0 || m_count == 0)
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return ValueObjectSP();
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size_t byte_idx = (idx >> 3); // divide by 8 to get byte index
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size_t bit_index = (idx & 7); // efficient idx % 8 for bit index
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lldb::addr_t byte_location = m_base_data_address + byte_idx;
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ProcessSP process_sp(m_exe_ctx_ref.GetProcessSP());
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if (!process_sp)
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return ValueObjectSP();
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uint8_t byte = 0;
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uint8_t mask = 0;
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Error err;
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size_t bytes_read = process_sp->ReadMemory(byte_location, &byte, 1, err);
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if (err.Fail() || bytes_read == 0)
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return ValueObjectSP();
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switch (bit_index)
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{
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case 0:
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mask = 1; break;
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case 1:
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mask = 2; break;
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case 2:
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mask = 4; break;
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case 3:
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mask = 8; break;
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case 4:
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mask = 16; break;
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case 5:
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mask = 32; break;
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case 6:
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mask = 64; break;
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case 7:
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mask = 128; break;
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default:
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return ValueObjectSP();
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}
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bool bit_set = ((byte & mask) != 0);
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Target& target(process_sp->GetTarget());
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ValueObjectSP retval_sp;
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if (bit_set)
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target.EvaluateExpression("(bool)true", NULL, retval_sp);
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else
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target.EvaluateExpression("(bool)false", NULL, retval_sp);
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StreamString name; name.Printf("[%" PRIu64 "]", (uint64_t)idx);
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if (retval_sp)
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retval_sp->SetName(ConstString(name.GetData()));
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return retval_sp;
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}
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/*((std::vector<std::allocator<bool> >) vBool = {
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(std::_Bvector_base<std::allocator<bool> >) std::_Bvector_base<std::allocator<bool> > = {
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(std::_Bvector_base<std::allocator<bool> >::_Bvector_impl) _M_impl = {
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(std::_Bit_iterator) _M_start = {
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(std::_Bit_iterator_base) std::_Bit_iterator_base = {
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(_Bit_type *) _M_p = 0x0016b160
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(unsigned int) _M_offset = 0
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}
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}
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(std::_Bit_iterator) _M_finish = {
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(std::_Bit_iterator_base) std::_Bit_iterator_base = {
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(_Bit_type *) _M_p = 0x0016b16c
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(unsigned int) _M_offset = 16
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}
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}
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(_Bit_type *) _M_end_of_storage = 0x0016b170
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}
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}
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}
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*/
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bool
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lldb_private::formatters::LibstdcppVectorBoolSyntheticFrontEnd::Update()
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{
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ValueObjectSP valobj_sp = m_backend.GetSP();
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if (!valobj_sp)
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return false;
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if (!valobj_sp)
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return false;
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m_exe_ctx_ref = valobj_sp->GetExecutionContextRef();
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ValueObjectSP m_impl_sp(valobj_sp->GetChildMemberWithName(ConstString("_M_impl"), true));
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if (!m_impl_sp)
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return false;
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ValueObjectSP m_start_sp(m_impl_sp->GetChildMemberWithName(ConstString("_M_start"), true));
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ValueObjectSP m_finish_sp(m_impl_sp->GetChildMemberWithName(ConstString("_M_finish"), true));
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ValueObjectSP start_p_sp, finish_p_sp, finish_offset_sp;
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if (!m_start_sp || !m_finish_sp)
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return false;
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start_p_sp = m_start_sp->GetChildMemberWithName(ConstString("_M_p"), true);
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finish_p_sp = m_finish_sp->GetChildMemberWithName(ConstString("_M_p"), true);
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finish_offset_sp = m_finish_sp->GetChildMemberWithName(ConstString("_M_offset"), true);
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if (!start_p_sp || !finish_offset_sp || !finish_p_sp)
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return false;
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m_base_data_address = start_p_sp->GetValueAsUnsigned(0);
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if (!m_base_data_address)
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return false;
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lldb::addr_t end_data_address(finish_p_sp->GetValueAsUnsigned(0));
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if (!end_data_address)
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return false;
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if (end_data_address < m_base_data_address)
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return false;
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else
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m_count = finish_offset_sp->GetValueAsUnsigned(0) + (end_data_address-m_base_data_address)*8;
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return true;
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}
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bool
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lldb_private::formatters::LibstdcppVectorBoolSyntheticFrontEnd::MightHaveChildren ()
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{
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return true;
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}
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size_t
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lldb_private::formatters::LibstdcppVectorBoolSyntheticFrontEnd::GetIndexOfChildWithName (const ConstString &name)
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{
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if (!m_count || !m_base_data_address)
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return UINT32_MAX;
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const char* item_name = name.GetCString();
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uint32_t idx = ExtractIndexFromString(item_name);
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if (idx < UINT32_MAX && idx >= CalculateNumChildren())
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return UINT32_MAX;
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return idx;
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}
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lldb_private::formatters::LibstdcppVectorBoolSyntheticFrontEnd::~LibstdcppVectorBoolSyntheticFrontEnd ()
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{}
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SyntheticChildrenFrontEnd*
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lldb_private::formatters::LibstdcppVectorBoolSyntheticFrontEndCreator (CXXSyntheticChildren*, lldb::ValueObjectSP valobj_sp)
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{
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if (!valobj_sp)
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return NULL;
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return (new LibstdcppVectorBoolSyntheticFrontEnd(valobj_sp));
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}
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/*
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(std::_Rb_tree_iterator<std::pair<const int, std::basic_string<char, std::char_traits<char>, std::allocator<char> > > >) ibeg = {
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(_Base_ptr) _M_node = 0x0000000100103910 {
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(std::_Rb_tree_color) _M_color = _S_black
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(std::_Rb_tree_node_base::_Base_ptr) _M_parent = 0x00000001001038c0
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(std::_Rb_tree_node_base::_Base_ptr) _M_left = 0x0000000000000000
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(std::_Rb_tree_node_base::_Base_ptr) _M_right = 0x0000000000000000
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}
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}
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*/
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lldb_private::formatters::LibstdcppMapIteratorSyntheticFrontEnd::LibstdcppMapIteratorSyntheticFrontEnd (lldb::ValueObjectSP valobj_sp) :
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SyntheticChildrenFrontEnd(*valobj_sp.get()),
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m_exe_ctx_ref(),
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m_pair_address(0),
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m_pair_type(),
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m_options(),
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m_pair_sp()
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{
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if (valobj_sp)
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Update();
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m_options.SetCoerceToId(false);
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m_options.SetUnwindOnError(true);
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m_options.SetKeepInMemory(true);
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m_options.SetUseDynamic(lldb::eDynamicCanRunTarget);
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}
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bool
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lldb_private::formatters::LibstdcppMapIteratorSyntheticFrontEnd::Update()
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{
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ValueObjectSP valobj_sp = m_backend.GetSP();
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if (!valobj_sp)
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return false;
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TargetSP target_sp(valobj_sp->GetTargetSP());
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if (!target_sp)
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return false;
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bool is_64bit = (target_sp->GetArchitecture().GetAddressByteSize() == 8);
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if (!valobj_sp)
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return false;
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m_exe_ctx_ref = valobj_sp->GetExecutionContextRef();
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ValueObjectSP _M_node_sp(valobj_sp->GetChildMemberWithName(ConstString("_M_node"), true));
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if (!_M_node_sp)
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return false;
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m_pair_address = _M_node_sp->GetValueAsUnsigned(0);
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if (m_pair_address == 0)
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return false;
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m_pair_address += (is_64bit ? 32 : 16);
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ClangASTType my_type(valobj_sp->GetClangType());
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if (my_type.GetNumTemplateArguments() >= 1)
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{
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TemplateArgumentKind kind;
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ClangASTType pair_type = my_type.GetTemplateArgument(0, kind);
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if (kind != eTemplateArgumentKindType && kind != eTemplateArgumentKindTemplate && kind != eTemplateArgumentKindTemplateExpansion)
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return false;
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m_pair_type = pair_type;
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}
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else
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return false;
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return true;
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}
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size_t
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lldb_private::formatters::LibstdcppMapIteratorSyntheticFrontEnd::CalculateNumChildren ()
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{
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return 2;
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}
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lldb::ValueObjectSP
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lldb_private::formatters::LibstdcppMapIteratorSyntheticFrontEnd::GetChildAtIndex (size_t idx)
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{
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if (m_pair_address != 0 && m_pair_type)
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{
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if (!m_pair_sp)
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m_pair_sp = ValueObject::CreateValueObjectFromAddress("pair", m_pair_address, m_exe_ctx_ref, m_pair_type);
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if (m_pair_sp)
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return m_pair_sp->GetChildAtIndex(idx, true);
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}
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return lldb::ValueObjectSP();
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}
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bool
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lldb_private::formatters::LibstdcppMapIteratorSyntheticFrontEnd::MightHaveChildren ()
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{
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return true;
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}
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size_t
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lldb_private::formatters::LibstdcppMapIteratorSyntheticFrontEnd::GetIndexOfChildWithName (const ConstString &name)
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{
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if (name == ConstString("first"))
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return 0;
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if (name == ConstString("second"))
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return 1;
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return UINT32_MAX;
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}
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lldb_private::formatters::LibstdcppMapIteratorSyntheticFrontEnd::~LibstdcppMapIteratorSyntheticFrontEnd ()
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{}
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SyntheticChildrenFrontEnd*
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lldb_private::formatters::LibstdcppMapIteratorSyntheticFrontEndCreator (CXXSyntheticChildren*, lldb::ValueObjectSP valobj_sp)
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{
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if (!valobj_sp)
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return NULL;
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return (new LibstdcppMapIteratorSyntheticFrontEnd(valobj_sp));
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}
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/*
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(lldb) fr var ibeg --ptr-depth 1
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(__gnu_cxx::__normal_iterator<int *, std::vector<int, std::allocator<int> > >) ibeg = {
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_M_current = 0x00000001001037a0 {
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*_M_current = 1
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}
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}
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*/
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SyntheticChildrenFrontEnd*
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lldb_private::formatters::LibStdcppVectorIteratorSyntheticFrontEndCreator (CXXSyntheticChildren*, lldb::ValueObjectSP valobj_sp)
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{
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static ConstString g_item_name;
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if (!g_item_name)
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g_item_name.SetCString("_M_current");
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if (!valobj_sp)
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return NULL;
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return (new VectorIteratorSyntheticFrontEnd(valobj_sp,g_item_name));
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}
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