You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
429 lines
13 KiB
429 lines
13 KiB
//===-- LibStdcpp.cpp -----------------------------------------------------===//
|
|
//
|
|
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
|
// See https://llvm.org/LICENSE.txt for license information.
|
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "LibStdcpp.h"
|
|
|
|
#include "Plugins/TypeSystem/Clang/TypeSystemClang.h"
|
|
#include "lldb/Core/ValueObject.h"
|
|
#include "lldb/Core/ValueObjectConstResult.h"
|
|
#include "lldb/DataFormatters/StringPrinter.h"
|
|
#include "lldb/DataFormatters/VectorIterator.h"
|
|
#include "lldb/Target/Target.h"
|
|
#include "lldb/Utility/DataBufferHeap.h"
|
|
#include "lldb/Utility/Endian.h"
|
|
#include "lldb/Utility/Status.h"
|
|
#include "lldb/Utility/Stream.h"
|
|
|
|
using namespace lldb;
|
|
using namespace lldb_private;
|
|
using namespace lldb_private::formatters;
|
|
|
|
namespace {
|
|
|
|
class LibstdcppMapIteratorSyntheticFrontEnd : public SyntheticChildrenFrontEnd {
|
|
/*
|
|
(std::_Rb_tree_iterator<std::pair<const int, std::basic_string<char,
|
|
std::char_traits<char>, std::allocator<char> > > >) ibeg = {
|
|
(_Base_ptr) _M_node = 0x0000000100103910 {
|
|
(std::_Rb_tree_color) _M_color = _S_black
|
|
(std::_Rb_tree_node_base::_Base_ptr) _M_parent = 0x00000001001038c0
|
|
(std::_Rb_tree_node_base::_Base_ptr) _M_left = 0x0000000000000000
|
|
(std::_Rb_tree_node_base::_Base_ptr) _M_right = 0x0000000000000000
|
|
}
|
|
}
|
|
*/
|
|
|
|
public:
|
|
explicit LibstdcppMapIteratorSyntheticFrontEnd(lldb::ValueObjectSP valobj_sp);
|
|
|
|
size_t CalculateNumChildren() override;
|
|
|
|
lldb::ValueObjectSP GetChildAtIndex(size_t idx) override;
|
|
|
|
bool Update() override;
|
|
|
|
bool MightHaveChildren() override;
|
|
|
|
size_t GetIndexOfChildWithName(ConstString name) override;
|
|
|
|
private:
|
|
ExecutionContextRef m_exe_ctx_ref;
|
|
lldb::addr_t m_pair_address;
|
|
CompilerType m_pair_type;
|
|
lldb::ValueObjectSP m_pair_sp;
|
|
};
|
|
|
|
class LibStdcppSharedPtrSyntheticFrontEnd : public SyntheticChildrenFrontEnd {
|
|
public:
|
|
explicit LibStdcppSharedPtrSyntheticFrontEnd(lldb::ValueObjectSP valobj_sp);
|
|
|
|
size_t CalculateNumChildren() override;
|
|
|
|
lldb::ValueObjectSP GetChildAtIndex(size_t idx) override;
|
|
|
|
bool Update() override;
|
|
|
|
bool MightHaveChildren() override;
|
|
|
|
size_t GetIndexOfChildWithName(ConstString name) override;
|
|
};
|
|
|
|
} // end of anonymous namespace
|
|
|
|
LibstdcppMapIteratorSyntheticFrontEnd::LibstdcppMapIteratorSyntheticFrontEnd(
|
|
lldb::ValueObjectSP valobj_sp)
|
|
: SyntheticChildrenFrontEnd(*valobj_sp), m_exe_ctx_ref(), m_pair_address(0),
|
|
m_pair_type(), m_pair_sp() {
|
|
if (valobj_sp)
|
|
Update();
|
|
}
|
|
|
|
bool LibstdcppMapIteratorSyntheticFrontEnd::Update() {
|
|
ValueObjectSP valobj_sp = m_backend.GetSP();
|
|
if (!valobj_sp)
|
|
return false;
|
|
|
|
TargetSP target_sp(valobj_sp->GetTargetSP());
|
|
|
|
if (!target_sp)
|
|
return false;
|
|
|
|
bool is_64bit = (target_sp->GetArchitecture().GetAddressByteSize() == 8);
|
|
|
|
if (!valobj_sp)
|
|
return false;
|
|
m_exe_ctx_ref = valobj_sp->GetExecutionContextRef();
|
|
|
|
ValueObjectSP _M_node_sp(
|
|
valobj_sp->GetChildMemberWithName(ConstString("_M_node"), true));
|
|
if (!_M_node_sp)
|
|
return false;
|
|
|
|
m_pair_address = _M_node_sp->GetValueAsUnsigned(0);
|
|
if (m_pair_address == 0)
|
|
return false;
|
|
|
|
m_pair_address += (is_64bit ? 32 : 16);
|
|
|
|
CompilerType my_type(valobj_sp->GetCompilerType());
|
|
if (my_type.GetNumTemplateArguments() >= 1) {
|
|
CompilerType pair_type = my_type.GetTypeTemplateArgument(0);
|
|
if (!pair_type)
|
|
return false;
|
|
m_pair_type = pair_type;
|
|
} else
|
|
return false;
|
|
|
|
return true;
|
|
}
|
|
|
|
size_t LibstdcppMapIteratorSyntheticFrontEnd::CalculateNumChildren() {
|
|
return 2;
|
|
}
|
|
|
|
lldb::ValueObjectSP
|
|
LibstdcppMapIteratorSyntheticFrontEnd::GetChildAtIndex(size_t idx) {
|
|
if (m_pair_address != 0 && m_pair_type) {
|
|
if (!m_pair_sp)
|
|
m_pair_sp = CreateValueObjectFromAddress("pair", m_pair_address,
|
|
m_exe_ctx_ref, m_pair_type);
|
|
if (m_pair_sp)
|
|
return m_pair_sp->GetChildAtIndex(idx, true);
|
|
}
|
|
return lldb::ValueObjectSP();
|
|
}
|
|
|
|
bool LibstdcppMapIteratorSyntheticFrontEnd::MightHaveChildren() { return true; }
|
|
|
|
size_t LibstdcppMapIteratorSyntheticFrontEnd::GetIndexOfChildWithName(
|
|
ConstString name) {
|
|
if (name == "first")
|
|
return 0;
|
|
if (name == "second")
|
|
return 1;
|
|
return UINT32_MAX;
|
|
}
|
|
|
|
SyntheticChildrenFrontEnd *
|
|
lldb_private::formatters::LibstdcppMapIteratorSyntheticFrontEndCreator(
|
|
CXXSyntheticChildren *, lldb::ValueObjectSP valobj_sp) {
|
|
return (valobj_sp ? new LibstdcppMapIteratorSyntheticFrontEnd(valobj_sp)
|
|
: nullptr);
|
|
}
|
|
|
|
/*
|
|
(lldb) fr var ibeg --ptr-depth 1
|
|
(__gnu_cxx::__normal_iterator<int *, std::vector<int, std::allocator<int> > >)
|
|
ibeg = {
|
|
_M_current = 0x00000001001037a0 {
|
|
*_M_current = 1
|
|
}
|
|
}
|
|
*/
|
|
|
|
SyntheticChildrenFrontEnd *
|
|
lldb_private::formatters::LibStdcppVectorIteratorSyntheticFrontEndCreator(
|
|
CXXSyntheticChildren *, lldb::ValueObjectSP valobj_sp) {
|
|
static ConstString g_item_name;
|
|
if (!g_item_name)
|
|
g_item_name.SetCString("_M_current");
|
|
return (valobj_sp
|
|
? new VectorIteratorSyntheticFrontEnd(valobj_sp, g_item_name)
|
|
: nullptr);
|
|
}
|
|
|
|
lldb_private::formatters::VectorIteratorSyntheticFrontEnd::
|
|
VectorIteratorSyntheticFrontEnd(lldb::ValueObjectSP valobj_sp,
|
|
ConstString item_name)
|
|
: SyntheticChildrenFrontEnd(*valobj_sp), m_exe_ctx_ref(),
|
|
m_item_name(item_name), m_item_sp() {
|
|
if (valobj_sp)
|
|
Update();
|
|
}
|
|
|
|
bool VectorIteratorSyntheticFrontEnd::Update() {
|
|
m_item_sp.reset();
|
|
|
|
ValueObjectSP valobj_sp = m_backend.GetSP();
|
|
if (!valobj_sp)
|
|
return false;
|
|
|
|
if (!valobj_sp)
|
|
return false;
|
|
|
|
ValueObjectSP item_ptr(valobj_sp->GetChildMemberWithName(m_item_name, true));
|
|
if (!item_ptr)
|
|
return false;
|
|
if (item_ptr->GetValueAsUnsigned(0) == 0)
|
|
return false;
|
|
Status err;
|
|
m_exe_ctx_ref = valobj_sp->GetExecutionContextRef();
|
|
m_item_sp = CreateValueObjectFromAddress(
|
|
"item", item_ptr->GetValueAsUnsigned(0), m_exe_ctx_ref,
|
|
item_ptr->GetCompilerType().GetPointeeType());
|
|
if (err.Fail())
|
|
m_item_sp.reset();
|
|
return false;
|
|
}
|
|
|
|
size_t VectorIteratorSyntheticFrontEnd::CalculateNumChildren() { return 1; }
|
|
|
|
lldb::ValueObjectSP
|
|
VectorIteratorSyntheticFrontEnd::GetChildAtIndex(size_t idx) {
|
|
if (idx == 0)
|
|
return m_item_sp;
|
|
return lldb::ValueObjectSP();
|
|
}
|
|
|
|
bool VectorIteratorSyntheticFrontEnd::MightHaveChildren() { return true; }
|
|
|
|
size_t VectorIteratorSyntheticFrontEnd::GetIndexOfChildWithName(
|
|
ConstString name) {
|
|
if (name == "item")
|
|
return 0;
|
|
return UINT32_MAX;
|
|
}
|
|
|
|
bool lldb_private::formatters::LibStdcppStringSummaryProvider(
|
|
ValueObject &valobj, Stream &stream, const TypeSummaryOptions &options) {
|
|
const bool scalar_is_load_addr = true;
|
|
AddressType addr_type;
|
|
lldb::addr_t addr_of_string =
|
|
valobj.GetAddressOf(scalar_is_load_addr, &addr_type);
|
|
if (addr_of_string != LLDB_INVALID_ADDRESS) {
|
|
switch (addr_type) {
|
|
case eAddressTypeLoad: {
|
|
ProcessSP process_sp(valobj.GetProcessSP());
|
|
if (!process_sp)
|
|
return false;
|
|
|
|
StringPrinter::ReadStringAndDumpToStreamOptions options(valobj);
|
|
Status error;
|
|
lldb::addr_t addr_of_data =
|
|
process_sp->ReadPointerFromMemory(addr_of_string, error);
|
|
if (error.Fail() || addr_of_data == 0 ||
|
|
addr_of_data == LLDB_INVALID_ADDRESS)
|
|
return false;
|
|
options.SetLocation(addr_of_data);
|
|
options.SetProcessSP(process_sp);
|
|
options.SetStream(&stream);
|
|
options.SetNeedsZeroTermination(false);
|
|
options.SetBinaryZeroIsTerminator(true);
|
|
lldb::addr_t size_of_data = process_sp->ReadPointerFromMemory(
|
|
addr_of_string + process_sp->GetAddressByteSize(), error);
|
|
if (error.Fail())
|
|
return false;
|
|
options.SetSourceSize(size_of_data);
|
|
options.SetHasSourceSize(true);
|
|
|
|
if (!StringPrinter::ReadStringAndDumpToStream<
|
|
StringPrinter::StringElementType::UTF8>(options)) {
|
|
stream.Printf("Summary Unavailable");
|
|
return true;
|
|
} else
|
|
return true;
|
|
} break;
|
|
case eAddressTypeHost:
|
|
break;
|
|
case eAddressTypeInvalid:
|
|
case eAddressTypeFile:
|
|
break;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
bool lldb_private::formatters::LibStdcppWStringSummaryProvider(
|
|
ValueObject &valobj, Stream &stream, const TypeSummaryOptions &options) {
|
|
const bool scalar_is_load_addr = true;
|
|
AddressType addr_type;
|
|
lldb::addr_t addr_of_string =
|
|
valobj.GetAddressOf(scalar_is_load_addr, &addr_type);
|
|
if (addr_of_string != LLDB_INVALID_ADDRESS) {
|
|
switch (addr_type) {
|
|
case eAddressTypeLoad: {
|
|
ProcessSP process_sp(valobj.GetProcessSP());
|
|
if (!process_sp)
|
|
return false;
|
|
|
|
CompilerType wchar_compiler_type =
|
|
valobj.GetCompilerType().GetBasicTypeFromAST(lldb::eBasicTypeWChar);
|
|
|
|
if (!wchar_compiler_type)
|
|
return false;
|
|
|
|
// Safe to pass nullptr for exe_scope here.
|
|
llvm::Optional<uint64_t> size = wchar_compiler_type.GetBitSize(nullptr);
|
|
if (!size)
|
|
return false;
|
|
const uint32_t wchar_size = *size;
|
|
|
|
StringPrinter::ReadStringAndDumpToStreamOptions options(valobj);
|
|
Status error;
|
|
lldb::addr_t addr_of_data =
|
|
process_sp->ReadPointerFromMemory(addr_of_string, error);
|
|
if (error.Fail() || addr_of_data == 0 ||
|
|
addr_of_data == LLDB_INVALID_ADDRESS)
|
|
return false;
|
|
options.SetLocation(addr_of_data);
|
|
options.SetProcessSP(process_sp);
|
|
options.SetStream(&stream);
|
|
options.SetNeedsZeroTermination(false);
|
|
options.SetBinaryZeroIsTerminator(false);
|
|
lldb::addr_t size_of_data = process_sp->ReadPointerFromMemory(
|
|
addr_of_string + process_sp->GetAddressByteSize(), error);
|
|
if (error.Fail())
|
|
return false;
|
|
options.SetSourceSize(size_of_data);
|
|
options.SetHasSourceSize(true);
|
|
options.SetPrefixToken("L");
|
|
|
|
switch (wchar_size) {
|
|
case 8:
|
|
return StringPrinter::ReadStringAndDumpToStream<
|
|
StringPrinter::StringElementType::UTF8>(options);
|
|
case 16:
|
|
return StringPrinter::ReadStringAndDumpToStream<
|
|
StringPrinter::StringElementType::UTF16>(options);
|
|
case 32:
|
|
return StringPrinter::ReadStringAndDumpToStream<
|
|
StringPrinter::StringElementType::UTF32>(options);
|
|
default:
|
|
stream.Printf("size for wchar_t is not valid");
|
|
return true;
|
|
}
|
|
return true;
|
|
} break;
|
|
case eAddressTypeHost:
|
|
break;
|
|
case eAddressTypeInvalid:
|
|
case eAddressTypeFile:
|
|
break;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
LibStdcppSharedPtrSyntheticFrontEnd::LibStdcppSharedPtrSyntheticFrontEnd(
|
|
lldb::ValueObjectSP valobj_sp)
|
|
: SyntheticChildrenFrontEnd(*valobj_sp) {
|
|
if (valobj_sp)
|
|
Update();
|
|
}
|
|
|
|
size_t LibStdcppSharedPtrSyntheticFrontEnd::CalculateNumChildren() { return 1; }
|
|
|
|
lldb::ValueObjectSP
|
|
LibStdcppSharedPtrSyntheticFrontEnd::GetChildAtIndex(size_t idx) {
|
|
ValueObjectSP valobj_sp = m_backend.GetSP();
|
|
if (!valobj_sp)
|
|
return lldb::ValueObjectSP();
|
|
|
|
if (idx == 0)
|
|
return valobj_sp->GetChildMemberWithName(ConstString("_M_ptr"), true);
|
|
else
|
|
return lldb::ValueObjectSP();
|
|
}
|
|
|
|
bool LibStdcppSharedPtrSyntheticFrontEnd::Update() { return false; }
|
|
|
|
bool LibStdcppSharedPtrSyntheticFrontEnd::MightHaveChildren() { return true; }
|
|
|
|
size_t LibStdcppSharedPtrSyntheticFrontEnd::GetIndexOfChildWithName(
|
|
ConstString name) {
|
|
if (name == "_M_ptr")
|
|
return 0;
|
|
return UINT32_MAX;
|
|
}
|
|
|
|
SyntheticChildrenFrontEnd *
|
|
lldb_private::formatters::LibStdcppSharedPtrSyntheticFrontEndCreator(
|
|
CXXSyntheticChildren *, lldb::ValueObjectSP valobj_sp) {
|
|
return (valobj_sp ? new LibStdcppSharedPtrSyntheticFrontEnd(valobj_sp)
|
|
: nullptr);
|
|
}
|
|
|
|
bool lldb_private::formatters::LibStdcppSmartPointerSummaryProvider(
|
|
ValueObject &valobj, Stream &stream, const TypeSummaryOptions &options) {
|
|
ValueObjectSP valobj_sp(valobj.GetNonSyntheticValue());
|
|
if (!valobj_sp)
|
|
return false;
|
|
|
|
ValueObjectSP ptr_sp(
|
|
valobj_sp->GetChildMemberWithName(ConstString("_M_ptr"), true));
|
|
if (!ptr_sp)
|
|
return false;
|
|
|
|
ValueObjectSP usecount_sp(valobj_sp->GetChildAtNamePath(
|
|
{ConstString("_M_refcount"), ConstString("_M_pi"),
|
|
ConstString("_M_use_count")}));
|
|
if (!usecount_sp)
|
|
return false;
|
|
|
|
if (ptr_sp->GetValueAsUnsigned(0) == 0 ||
|
|
usecount_sp->GetValueAsUnsigned(0) == 0) {
|
|
stream.Printf("nullptr");
|
|
return true;
|
|
}
|
|
|
|
Status error;
|
|
ValueObjectSP pointee_sp = ptr_sp->Dereference(error);
|
|
if (pointee_sp && error.Success()) {
|
|
if (pointee_sp->DumpPrintableRepresentation(
|
|
stream, ValueObject::eValueObjectRepresentationStyleSummary,
|
|
lldb::eFormatInvalid,
|
|
ValueObject::PrintableRepresentationSpecialCases::eDisable,
|
|
false)) {
|
|
return true;
|
|
}
|
|
}
|
|
|
|
stream.Printf("ptr = 0x%" PRIx64, ptr_sp->GetValueAsUnsigned(0));
|
|
return true;
|
|
}
|