diff options
Diffstat (limited to 'lldb/source/Plugins/Language')
14 files changed, 2854 insertions, 3 deletions
diff --git a/lldb/source/Plugins/Language/CPlusPlus/CMakeLists.txt b/lldb/source/Plugins/Language/CPlusPlus/CMakeLists.txt index 8b28b7d7f09..0b0f0f451a8 100644 --- a/lldb/source/Plugins/Language/CPlusPlus/CMakeLists.txt +++ b/lldb/source/Plugins/Language/CPlusPlus/CMakeLists.txt @@ -1,3 +1,11 @@ add_lldb_library(lldbPluginCPlusPlusLanguage CPlusPlusLanguage.cpp + CxxStringTypes.cpp + LibCxx.cpp + LibCxxInitializerList.cpp + LibCxxList.cpp + LibCxxMap.cpp + LibCxxUnorderedMap.cpp + LibCxxVector.cpp + LibStdcpp.cpp ) diff --git a/lldb/source/Plugins/Language/CPlusPlus/CPlusPlusLanguage.cpp b/lldb/source/Plugins/Language/CPlusPlus/CPlusPlusLanguage.cpp index a69e3dc4246..923be58df11 100644 --- a/lldb/source/Plugins/Language/CPlusPlus/CPlusPlusLanguage.cpp +++ b/lldb/source/Plugins/Language/CPlusPlus/CPlusPlusLanguage.cpp @@ -17,9 +17,20 @@ #include "lldb/Core/PluginManager.h" #include "lldb/Core/RegularExpression.h" #include "lldb/Core/UniqueCStringMap.h" +#include "lldb/DataFormatters/DataVisualization.h" +#include "lldb/DataFormatters/FormattersHelpers.h" + +#include "CXXFunctionPointer.h" +#include "CxxStringTypes.h" +#include "LibCxx.h" +#include "LibStdcpp.h" + +#include <functional> +#include <mutex> using namespace lldb; using namespace lldb_private; +using namespace lldb_private::formatters; void CPlusPlusLanguage::Initialize() @@ -438,3 +449,224 @@ CPlusPlusLanguage::FindEquivalentNames(ConstString type_name, std::vector<ConstS return count; } +static void +LoadLibCxxFormatters (lldb::TypeCategoryImplSP cpp_category_sp) +{ + if (!cpp_category_sp) + return; + + TypeSummaryImpl::Flags stl_summary_flags; + stl_summary_flags.SetCascades(true) + .SetSkipPointers(false) + .SetSkipReferences(false) + .SetDontShowChildren(true) + .SetDontShowValue(true) + .SetShowMembersOneLiner(false) + .SetHideItemNames(false); + +#ifndef LLDB_DISABLE_PYTHON + lldb::TypeSummaryImplSP std_string_summary_sp(new CXXFunctionSummaryFormat(stl_summary_flags, lldb_private::formatters::LibcxxStringSummaryProvider, "std::string summary provider")); + lldb::TypeSummaryImplSP std_wstring_summary_sp(new CXXFunctionSummaryFormat(stl_summary_flags, lldb_private::formatters::LibcxxWStringSummaryProvider, "std::wstring summary provider")); + + cpp_category_sp->GetTypeSummariesContainer()->Add(ConstString("std::__1::string"), + std_string_summary_sp); + cpp_category_sp->GetTypeSummariesContainer()->Add(ConstString("std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >"), + std_string_summary_sp); + + cpp_category_sp->GetTypeSummariesContainer()->Add(ConstString("std::__1::wstring"), + std_wstring_summary_sp); + cpp_category_sp->GetTypeSummariesContainer()->Add(ConstString("std::__1::basic_string<wchar_t, std::__1::char_traits<wchar_t>, std::__1::allocator<wchar_t> >"), + std_wstring_summary_sp); + + SyntheticChildren::Flags stl_synth_flags; + stl_synth_flags.SetCascades(true).SetSkipPointers(false).SetSkipReferences(false); + + AddCXXSynthetic(cpp_category_sp, lldb_private::formatters::LibcxxStdVectorSyntheticFrontEndCreator, "libc++ std::vector synthetic children", ConstString("^std::__1::vector<.+>(( )?&)?$"), stl_synth_flags, true); + AddCXXSynthetic(cpp_category_sp, lldb_private::formatters::LibcxxStdListSyntheticFrontEndCreator, "libc++ std::list synthetic children", ConstString("^std::__1::list<.+>(( )?&)?$"), stl_synth_flags, true); + AddCXXSynthetic(cpp_category_sp, lldb_private::formatters::LibcxxStdMapSyntheticFrontEndCreator, "libc++ std::map synthetic children", ConstString("^std::__1::map<.+> >(( )?&)?$"), stl_synth_flags, true); + AddCXXSynthetic(cpp_category_sp, lldb_private::formatters::LibcxxVectorBoolSyntheticFrontEndCreator, "libc++ std::vector<bool> synthetic children", ConstString("std::__1::vector<std::__1::allocator<bool> >"), stl_synth_flags); + AddCXXSynthetic(cpp_category_sp, lldb_private::formatters::LibcxxVectorBoolSyntheticFrontEndCreator, "libc++ std::vector<bool> synthetic children", ConstString("std::__1::vector<bool, std::__1::allocator<bool> >"), stl_synth_flags); + AddCXXSynthetic(cpp_category_sp, lldb_private::formatters::LibcxxStdMapSyntheticFrontEndCreator, "libc++ std::set synthetic children", ConstString("^std::__1::set<.+> >(( )?&)?$"), stl_synth_flags, true); + AddCXXSynthetic(cpp_category_sp, lldb_private::formatters::LibcxxStdMapSyntheticFrontEndCreator, "libc++ std::multiset synthetic children", ConstString("^std::__1::multiset<.+> >(( )?&)?$"), stl_synth_flags, true); + AddCXXSynthetic(cpp_category_sp, lldb_private::formatters::LibcxxStdMapSyntheticFrontEndCreator, "libc++ std::multimap synthetic children", ConstString("^std::__1::multimap<.+> >(( )?&)?$"), stl_synth_flags, true); + AddCXXSynthetic(cpp_category_sp, lldb_private::formatters::LibcxxStdUnorderedMapSyntheticFrontEndCreator, "libc++ std::unordered containers synthetic children", ConstString("^(std::__1::)unordered_(multi)?(map|set)<.+> >$"), stl_synth_flags, true); + AddCXXSynthetic(cpp_category_sp, lldb_private::formatters::LibcxxInitializerListSyntheticFrontEndCreator, "libc++ std::initializer_list synthetic children", ConstString("^std::initializer_list<.+>(( )?&)?$"), stl_synth_flags, true); + + cpp_category_sp->GetRegexTypeSyntheticsContainer()->Add(RegularExpressionSP(new RegularExpression("^(std::__1::)deque<.+>(( )?&)?$")), + SyntheticChildrenSP(new ScriptedSyntheticChildren(stl_synth_flags, + "lldb.formatters.cpp.libcxx.stddeque_SynthProvider"))); + + AddCXXSynthetic(cpp_category_sp, lldb_private::formatters::LibcxxSharedPtrSyntheticFrontEndCreator, "shared_ptr synthetic children", ConstString("^(std::__1::)shared_ptr<.+>(( )?&)?$"), stl_synth_flags, true); + AddCXXSynthetic(cpp_category_sp, lldb_private::formatters::LibcxxSharedPtrSyntheticFrontEndCreator, "weak_ptr synthetic children", ConstString("^(std::__1::)weak_ptr<.+>(( )?&)?$"), stl_synth_flags, true); + + stl_summary_flags.SetDontShowChildren(false);stl_summary_flags.SetSkipPointers(false); + AddCXXSynthetic(cpp_category_sp, lldb_private::formatters::LibcxxVectorBoolSyntheticFrontEndCreator, "libc++ std::vector<bool> synthetic children", ConstString("std::__1::vector<bool, std::__1::allocator<bool> >"), stl_synth_flags); + + AddCXXSummary(cpp_category_sp, lldb_private::formatters::LibcxxContainerSummaryProvider, "libc++ std::vector summary provider", ConstString("^std::__1::vector<.+>(( )?&)?$"), stl_summary_flags, true); + AddCXXSummary(cpp_category_sp, lldb_private::formatters::LibcxxContainerSummaryProvider, "libc++ std::list summary provider", ConstString("^std::__1::list<.+>(( )?&)?$"), stl_summary_flags, true); + AddCXXSummary(cpp_category_sp, lldb_private::formatters::LibcxxContainerSummaryProvider, "libc++ std::map summary provider", ConstString("^std::__1::map<.+>(( )?&)?$"), stl_summary_flags, true); + AddCXXSummary(cpp_category_sp, lldb_private::formatters::LibcxxContainerSummaryProvider, "libc++ std::deque summary provider", ConstString("^std::__1::deque<.+>(( )?&)?$"), stl_summary_flags, true); + AddCXXSummary(cpp_category_sp, lldb_private::formatters::LibcxxContainerSummaryProvider, "libc++ std::vector<bool> summary provider", ConstString("std::__1::vector<std::__1::allocator<bool> >"), stl_summary_flags); + AddCXXSummary(cpp_category_sp, lldb_private::formatters::LibcxxContainerSummaryProvider, "libc++ std::vector<bool> summary provider", ConstString("std::__1::vector<bool, std::__1::allocator<bool> >"), stl_summary_flags); + AddCXXSummary(cpp_category_sp, lldb_private::formatters::LibcxxContainerSummaryProvider, "libc++ std::set summary provider", ConstString("^std::__1::set<.+>(( )?&)?$"), stl_summary_flags, true); + AddCXXSummary(cpp_category_sp, lldb_private::formatters::LibcxxContainerSummaryProvider, "libc++ std::multiset summary provider", ConstString("^std::__1::multiset<.+>(( )?&)?$"), stl_summary_flags, true); + AddCXXSummary(cpp_category_sp, lldb_private::formatters::LibcxxContainerSummaryProvider, "libc++ std::multimap summary provider", ConstString("^std::__1::multimap<.+>(( )?&)?$"), stl_summary_flags, true); + AddCXXSummary(cpp_category_sp, lldb_private::formatters::LibcxxContainerSummaryProvider, "libc++ std::unordered containers summary provider", ConstString("^(std::__1::)unordered_(multi)?(map|set)<.+> >$"), stl_summary_flags, true); + + stl_summary_flags.SetSkipPointers(true); + + AddCXXSummary(cpp_category_sp, lldb_private::formatters::LibcxxSmartPointerSummaryProvider, "libc++ std::shared_ptr summary provider", ConstString("^std::__1::shared_ptr<.+>(( )?&)?$"), stl_summary_flags, true); + AddCXXSummary(cpp_category_sp, lldb_private::formatters::LibcxxSmartPointerSummaryProvider, "libc++ std::weak_ptr summary provider", ConstString("^std::__1::weak_ptr<.+>(( )?&)?$"), stl_summary_flags, true); + + AddCXXSynthetic(cpp_category_sp, lldb_private::formatters::LibCxxVectorIteratorSyntheticFrontEndCreator, "std::vector iterator synthetic children", ConstString("^std::__1::__wrap_iter<.+>$"), stl_synth_flags, true); + + AddCXXSummary(cpp_category_sp, lldb_private::formatters::LibcxxContainerSummaryProvider, "libc++ std::vector<bool> summary provider", ConstString("std::__1::vector<bool, std::__1::allocator<bool> >"), stl_summary_flags); + AddCXXSynthetic(cpp_category_sp, lldb_private::formatters::LibCxxMapIteratorSyntheticFrontEndCreator, "std::map iterator synthetic children", ConstString("^std::__1::__map_iterator<.+>$"), stl_synth_flags, true); + + AddFilter(cpp_category_sp, {"__a_"}, "libc++ std::atomic filter", ConstString("^std::__1::atomic<.*>$"), stl_synth_flags, true); +#endif +} + +static void +LoadLibStdcppFormatters(lldb::TypeCategoryImplSP cpp_category_sp) +{ + if (!cpp_category_sp) + return; + + TypeSummaryImpl::Flags stl_summary_flags; + stl_summary_flags.SetCascades(true) + .SetSkipPointers(false) + .SetSkipReferences(false) + .SetDontShowChildren(true) + .SetDontShowValue(true) + .SetShowMembersOneLiner(false) + .SetHideItemNames(false); + + lldb::TypeSummaryImplSP std_string_summary_sp(new StringSummaryFormat(stl_summary_flags, + "${var._M_dataplus._M_p}")); + + cpp_category_sp->GetTypeSummariesContainer()->Add(ConstString("std::string"), + std_string_summary_sp); + cpp_category_sp->GetTypeSummariesContainer()->Add(ConstString("std::basic_string<char>"), + std_string_summary_sp); + cpp_category_sp->GetTypeSummariesContainer()->Add(ConstString("std::basic_string<char,std::char_traits<char>,std::allocator<char> >"), + std_string_summary_sp); + cpp_category_sp->GetTypeSummariesContainer()->Add(ConstString("std::basic_string<char, std::char_traits<char>, std::allocator<char> >"), + std_string_summary_sp); + + // making sure we force-pick the summary for printing wstring (_M_p is a wchar_t*) + lldb::TypeSummaryImplSP std_wstring_summary_sp(new StringSummaryFormat(stl_summary_flags, + "${var._M_dataplus._M_p%S}")); + + cpp_category_sp->GetTypeSummariesContainer()->Add(ConstString("std::wstring"), + std_wstring_summary_sp); + cpp_category_sp->GetTypeSummariesContainer()->Add(ConstString("std::basic_string<wchar_t>"), + std_wstring_summary_sp); + cpp_category_sp->GetTypeSummariesContainer()->Add(ConstString("std::basic_string<wchar_t,std::char_traits<wchar_t>,std::allocator<wchar_t> >"), + std_wstring_summary_sp); + cpp_category_sp->GetTypeSummariesContainer()->Add(ConstString("std::basic_string<wchar_t, std::char_traits<wchar_t>, std::allocator<wchar_t> >"), + std_wstring_summary_sp); + + +#ifndef LLDB_DISABLE_PYTHON + + SyntheticChildren::Flags stl_synth_flags; + stl_synth_flags.SetCascades(true).SetSkipPointers(false).SetSkipReferences(false); + + cpp_category_sp->GetRegexTypeSyntheticsContainer()->Add(RegularExpressionSP(new RegularExpression("^std::vector<.+>(( )?&)?$")), + SyntheticChildrenSP(new ScriptedSyntheticChildren(stl_synth_flags, + "lldb.formatters.cpp.gnu_libstdcpp.StdVectorSynthProvider"))); + cpp_category_sp->GetRegexTypeSyntheticsContainer()->Add(RegularExpressionSP(new RegularExpression("^std::map<.+> >(( )?&)?$")), + SyntheticChildrenSP(new ScriptedSyntheticChildren(stl_synth_flags, + "lldb.formatters.cpp.gnu_libstdcpp.StdMapSynthProvider"))); + cpp_category_sp->GetRegexTypeSyntheticsContainer()->Add(RegularExpressionSP(new RegularExpression("^std::list<.+>(( )?&)?$")), + SyntheticChildrenSP(new ScriptedSyntheticChildren(stl_synth_flags, + "lldb.formatters.cpp.gnu_libstdcpp.StdListSynthProvider"))); + + stl_summary_flags.SetDontShowChildren(false);stl_summary_flags.SetSkipPointers(true); + cpp_category_sp->GetRegexTypeSummariesContainer()->Add(RegularExpressionSP(new RegularExpression("^std::vector<.+>(( )?&)?$")), + TypeSummaryImplSP(new StringSummaryFormat(stl_summary_flags, + "size=${svar%#}"))); + cpp_category_sp->GetRegexTypeSummariesContainer()->Add(RegularExpressionSP(new RegularExpression("^std::map<.+> >(( )?&)?$")), + TypeSummaryImplSP(new StringSummaryFormat(stl_summary_flags, + "size=${svar%#}"))); + cpp_category_sp->GetRegexTypeSummariesContainer()->Add(RegularExpressionSP(new RegularExpression("^std::list<.+>(( )?&)?$")), + TypeSummaryImplSP(new StringSummaryFormat(stl_summary_flags, + "size=${svar%#}"))); + + AddCXXSynthetic(cpp_category_sp, lldb_private::formatters::LibStdcppVectorIteratorSyntheticFrontEndCreator, "std::vector iterator synthetic children", ConstString("^__gnu_cxx::__normal_iterator<.+>$"), stl_synth_flags, true); + + AddCXXSynthetic(cpp_category_sp, lldb_private::formatters::LibstdcppMapIteratorSyntheticFrontEndCreator, "std::map iterator synthetic children", ConstString("^std::_Rb_tree_iterator<.+>$"), stl_synth_flags, true); +#endif +} + +static void +LoadSystemFormatters(lldb::TypeCategoryImplSP cpp_category_sp) +{ + if (!cpp_category_sp) + return; + + TypeSummaryImpl::Flags string_flags; + string_flags.SetCascades(true) + .SetSkipPointers(true) + .SetSkipReferences(false) + .SetDontShowChildren(true) + .SetDontShowValue(false) + .SetShowMembersOneLiner(false) + .SetHideItemNames(false); + + TypeSummaryImpl::Flags string_array_flags; + string_array_flags.SetCascades(true) + .SetSkipPointers(true) + .SetSkipReferences(false) + .SetDontShowChildren(true) + .SetDontShowValue(true) + .SetShowMembersOneLiner(false) + .SetHideItemNames(false); + +#ifndef LLDB_DISABLE_PYTHON + // FIXME because of a bug in the FormattersContainer we need to add a summary for both X* and const X* (<rdar://problem/12717717>) + AddCXXSummary(cpp_category_sp, lldb_private::formatters::Char16StringSummaryProvider, "char16_t * summary provider", ConstString("char16_t *"), string_flags); + + AddCXXSummary(cpp_category_sp, lldb_private::formatters::Char32StringSummaryProvider, "char32_t * summary provider", ConstString("char32_t *"), string_flags); + + AddCXXSummary(cpp_category_sp, lldb_private::formatters::WCharStringSummaryProvider, "wchar_t * summary provider", ConstString("wchar_t *"), string_flags); + AddCXXSummary(cpp_category_sp, lldb_private::formatters::WCharStringSummaryProvider, "wchar_t * summary provider", ConstString("wchar_t \\[[0-9]+\\]"), string_array_flags, true); + + AddCXXSummary(cpp_category_sp, lldb_private::formatters::Char16StringSummaryProvider, "unichar * summary provider", ConstString("unichar *"), string_flags); + + TypeSummaryImpl::Flags widechar_flags; + widechar_flags.SetDontShowValue(true) + .SetSkipPointers(true) + .SetSkipReferences(false) + .SetCascades(true) + .SetDontShowChildren(true) + .SetHideItemNames(true) + .SetShowMembersOneLiner(false); + + AddCXXSummary(cpp_category_sp, lldb_private::formatters::Char16SummaryProvider, "char16_t summary provider", ConstString("char16_t"), widechar_flags); + AddCXXSummary(cpp_category_sp, lldb_private::formatters::Char32SummaryProvider, "char32_t summary provider", ConstString("char32_t"), widechar_flags); + AddCXXSummary(cpp_category_sp, lldb_private::formatters::WCharSummaryProvider, "wchar_t summary provider", ConstString("wchar_t"), widechar_flags); + + AddCXXSummary(cpp_category_sp, lldb_private::formatters::Char16SummaryProvider, "unichar summary provider", ConstString("unichar"), widechar_flags); +#endif +} + +lldb::TypeCategoryImplSP +CPlusPlusLanguage::GetFormatters () +{ + static std::once_flag g_initialize; + static TypeCategoryImplSP g_category; + + std::call_once(g_initialize, [this] () -> void { + DataVisualization::Categories::GetCategory(GetPluginName(), g_category); + if (g_category) + { + LoadLibCxxFormatters(g_category); + LoadLibStdcppFormatters(g_category); + LoadSystemFormatters(g_category); + } + }); + return g_category; +} + diff --git a/lldb/source/Plugins/Language/CPlusPlus/CPlusPlusLanguage.h b/lldb/source/Plugins/Language/CPlusPlus/CPlusPlusLanguage.h index 2ede8d8edde..1dba19b13a2 100644 --- a/lldb/source/Plugins/Language/CPlusPlus/CPlusPlusLanguage.h +++ b/lldb/source/Plugins/Language/CPlusPlus/CPlusPlusLanguage.h @@ -121,11 +121,14 @@ public: CPlusPlusLanguage () = default; lldb::LanguageType - GetLanguageType () const + GetLanguageType () const override { return lldb::eLanguageTypeC_plus_plus; } + lldb::TypeCategoryImplSP + GetFormatters () override; + //------------------------------------------------------------------ // Static Functions //------------------------------------------------------------------ @@ -167,10 +170,10 @@ public: // PluginInterface protocol //------------------------------------------------------------------ virtual ConstString - GetPluginName(); + GetPluginName() override; virtual uint32_t - GetPluginVersion(); + GetPluginVersion() override; }; } // namespace lldb_private diff --git a/lldb/source/Plugins/Language/CPlusPlus/CxxStringTypes.cpp b/lldb/source/Plugins/Language/CPlusPlus/CxxStringTypes.cpp new file mode 100644 index 00000000000..660704337cb --- /dev/null +++ b/lldb/source/Plugins/Language/CPlusPlus/CxxStringTypes.cpp @@ -0,0 +1,211 @@ +//===-- CXXStringTypes.cpp --------------------------------------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#include "CxxStringTypes.h" + +#include "llvm/Support/ConvertUTF.h" + +#include "lldb/Core/DataBufferHeap.h" +#include "lldb/Core/Error.h" +#include "lldb/Core/Stream.h" +#include "lldb/Core/ValueObject.h" +#include "lldb/Core/ValueObjectConstResult.h" +#include "lldb/DataFormatters/StringPrinter.h" +#include "lldb/DataFormatters/TypeSummary.h" +#include "lldb/Host/Endian.h" +#include "lldb/Symbol/ClangASTContext.h" +#include "lldb/Target/SectionLoadList.h" +#include "lldb/Target/Target.h" +#include "lldb/Target/Thread.h" +#include "lldb/Utility/ProcessStructReader.h" + +#include <algorithm> + +#if __ANDROID_NDK__ +#include <sys/types.h> +#endif + +#include "lldb/Host/Time.h" + +using namespace lldb; +using namespace lldb_private; +using namespace lldb_private::formatters; + +bool +lldb_private::formatters::Char16StringSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions&) +{ + ProcessSP process_sp = valobj.GetProcessSP(); + if (!process_sp) + return false; + + lldb::addr_t valobj_addr = valobj.GetValueAsUnsigned(0); + + if (!valobj_addr) + return false; + + ReadStringAndDumpToStreamOptions options(valobj); + options.SetLocation(valobj_addr); + options.SetProcessSP(process_sp); + options.SetStream(&stream); + options.SetPrefixToken('u'); + + if (!ReadStringAndDumpToStream<StringElementType::UTF16>(options)) + { + stream.Printf("Summary Unavailable"); + return true; + } + + return true; +} + +bool +lldb_private::formatters::Char32StringSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions&) +{ + ProcessSP process_sp = valobj.GetProcessSP(); + if (!process_sp) + return false; + + lldb::addr_t valobj_addr = valobj.GetValueAsUnsigned(0); + + if (!valobj_addr) + return false; + + ReadStringAndDumpToStreamOptions options(valobj); + options.SetLocation(valobj_addr); + options.SetProcessSP(process_sp); + options.SetStream(&stream); + options.SetPrefixToken('U'); + + if (!ReadStringAndDumpToStream<StringElementType::UTF32>(options)) + { + stream.Printf("Summary Unavailable"); + return true; + } + + return true; +} + +bool +lldb_private::formatters::WCharStringSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions&) +{ + ProcessSP process_sp = valobj.GetProcessSP(); + if (!process_sp) + return false; + + lldb::addr_t data_addr = 0; + + if (valobj.IsPointerType()) + data_addr = valobj.GetValueAsUnsigned(0); + else if (valobj.IsArrayType()) + data_addr = valobj.GetAddressOf(); + + if (data_addr == 0 || data_addr == LLDB_INVALID_ADDRESS) + return false; + + // Get a wchar_t basic type from the current type system + CompilerType wchar_clang_type = valobj.GetCompilerType().GetBasicTypeFromAST(lldb::eBasicTypeWChar); + + if (!wchar_clang_type) + return false; + + const uint32_t wchar_size = wchar_clang_type.GetBitSize(nullptr); // Safe to pass NULL for exe_scope here + + ReadStringAndDumpToStreamOptions options(valobj); + options.SetLocation(data_addr); + options.SetProcessSP(process_sp); + options.SetStream(&stream); + options.SetPrefixToken('L'); + + switch (wchar_size) + { + case 8: + return ReadStringAndDumpToStream<StringElementType::UTF8>(options); + case 16: + return ReadStringAndDumpToStream<StringElementType::UTF16>(options); + case 32: + return ReadStringAndDumpToStream<StringElementType::UTF32>(options); + default: + stream.Printf("size for wchar_t is not valid"); + return true; + } + return true; +} + +bool +lldb_private::formatters::Char16SummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions&) +{ + DataExtractor data; + Error error; + valobj.GetData(data, error); + + if (error.Fail()) + return false; + + std::string value; + valobj.GetValueAsCString(lldb::eFormatUnicode16, value); + if (!value.empty()) + stream.Printf("%s ", value.c_str()); + + ReadBufferAndDumpToStreamOptions options(valobj); + options.SetData(data); + options.SetStream(&stream); + options.SetPrefixToken('u'); + options.SetQuote('\''); + options.SetSourceSize(1); + options.SetBinaryZeroIsTerminator(false); + + return ReadBufferAndDumpToStream<StringElementType::UTF16>(options); +} + +bool +lldb_private::formatters::Char32SummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions&) +{ + DataExtractor data; + Error error; + valobj.GetData(data, error); + + if (error.Fail()) + return false; + + std::string value; + valobj.GetValueAsCString(lldb::eFormatUnicode32, value); + if (!value.empty()) + stream.Printf("%s ", value.c_str()); + + ReadBufferAndDumpToStreamOptions options(valobj); + options.SetData(data); + options.SetStream(&stream); + options.SetPrefixToken('U'); + options.SetQuote('\''); + options.SetSourceSize(1); + options.SetBinaryZeroIsTerminator(false); + + return ReadBufferAndDumpToStream<StringElementType::UTF32>(options); +} + +bool +lldb_private::formatters::WCharSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions&) +{ + DataExtractor data; + Error error; + valobj.GetData(data, error); + + if (error.Fail()) + return false; + + ReadBufferAndDumpToStreamOptions options(valobj); + options.SetData(data); + options.SetStream(&stream); + options.SetPrefixToken('L'); + options.SetQuote('\''); + options.SetSourceSize(1); + options.SetBinaryZeroIsTerminator(false); + + return ReadBufferAndDumpToStream<StringElementType::UTF16>(options); +} diff --git a/lldb/source/Plugins/Language/CPlusPlus/CxxStringTypes.h b/lldb/source/Plugins/Language/CPlusPlus/CxxStringTypes.h new file mode 100644 index 00000000000..bfb03bda7ee --- /dev/null +++ b/lldb/source/Plugins/Language/CPlusPlus/CxxStringTypes.h @@ -0,0 +1,41 @@ +//===-- CxxStringTypes.h ----------------------------------------------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#ifndef liblldb_CxxStringTypes_h_ +#define liblldb_CxxStringTypes_h_ + +#include "lldb/Core/Stream.h" +#include "lldb/Core/ValueObject.h" +#include "lldb/DataFormatters/TypeSummary.h" + +namespace lldb_private { + namespace formatters + { + bool + Char16StringSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& options); // char16_t* and unichar* + + bool + Char32StringSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& options); // char32_t* + + bool + WCharStringSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& options); // wchar_t* + + bool + Char16SummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& options); // char16_t and unichar + + bool + Char32SummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& options); // char32_t + + bool + WCharSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& options); // wchar_t + + } // namespace formatters +} // namespace lldb_private + +#endif // liblldb_CxxStringTypes_h_ diff --git a/lldb/source/Plugins/Language/CPlusPlus/LibCxx.cpp b/lldb/source/Plugins/Language/CPlusPlus/LibCxx.cpp new file mode 100644 index 00000000000..392e812c8c1 --- /dev/null +++ b/lldb/source/Plugins/Language/CPlusPlus/LibCxx.cpp @@ -0,0 +1,636 @@ +//===-- LibCxx.cpp ----------------------------------------------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#include "LibCxx.h" + +#include "lldb/Core/DataBufferHeap.h" +#include "lldb/Core/Debugger.h" +#include "lldb/Core/Error.h" +#include "lldb/Core/FormatEntity.h" +#include "lldb/Core/Stream.h" +#include "lldb/Core/ValueObject.h" +#include "lldb/Core/ValueObjectConstResult.h" +#include "lldb/DataFormatters/FormattersHelpers.h" +#include "lldb/DataFormatters/StringPrinter.h" +#include "lldb/DataFormatters/TypeSummary.h" +#include "lldb/DataFormatters/VectorIterator.h" +#include "lldb/Host/Endian.h" +#include "lldb/Symbol/ClangASTContext.h" +#include "lldb/Target/Target.h" + +using namespace lldb; +using namespace lldb_private; +using namespace lldb_private::formatters; + +bool +lldb_private::formatters::LibcxxSmartPointerSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& options) +{ + ValueObjectSP valobj_sp(valobj.GetNonSyntheticValue()); + if (!valobj_sp) + return false; + ValueObjectSP ptr_sp(valobj_sp->GetChildMemberWithName(ConstString("__ptr_"), true)); + ValueObjectSP count_sp(valobj_sp->GetChildAtNamePath( {ConstString("__cntrl_"),ConstString("__shared_owners_")} )); + ValueObjectSP weakcount_sp(valobj_sp->GetChildAtNamePath( {ConstString("__cntrl_"),ConstString("__shared_weak_owners_")} )); + + if (!ptr_sp) + return false; + + if (ptr_sp->GetValueAsUnsigned(0) == 0) + { + stream.Printf("nullptr"); + return true; + } + else + { + bool print_pointee = false; + Error error; + ValueObjectSP pointee_sp = ptr_sp->Dereference(error); + if (pointee_sp && error.Success()) + { + if (pointee_sp->DumpPrintableRepresentation(stream, + ValueObject::eValueObjectRepresentationStyleSummary, + lldb::eFormatInvalid, + ValueObject::ePrintableRepresentationSpecialCasesDisable, + false)) + print_pointee = true; + } + if (!print_pointee) + stream.Printf("ptr = 0x%" PRIx64, ptr_sp->GetValueAsUnsigned(0)); + } + + if (count_sp) + stream.Printf(" strong=%" PRIu64, 1+count_sp->GetValueAsUnsigned(0)); + + if (weakcount_sp) + stream.Printf(" weak=%" PRIu64, 1+weakcount_sp->GetValueAsUnsigned(0)); + + return true; +} + +lldb_private::formatters::LibcxxVectorBoolSyntheticFrontEnd::LibcxxVectorBoolSyntheticFrontEnd (lldb::ValueObjectSP valobj_sp) : +SyntheticChildrenFrontEnd(*valobj_sp.get()), +m_bool_type(), +m_exe_ctx_ref(), +m_count(0), +m_base_data_address(0), +m_children() +{ + if (valobj_sp) + { + Update(); + m_bool_type = valobj_sp->GetCompilerType().GetBasicTypeFromAST(lldb::eBasicTypeBool); + } +} + +size_t +lldb_private::formatters::LibcxxVectorBoolSyntheticFrontEnd::CalculateNumChildren () +{ + return m_count; +} + +lldb::ValueObjectSP +lldb_private::formatters::LibcxxVectorBoolSyntheticFrontEnd::GetChildAtIndex (size_t idx) +{ + auto iter = m_children.find(idx), + end = m_children.end(); + if (iter != end) + return iter->second; + if (idx >= m_count) + return ValueObjectSP(); + if (m_base_data_address == 0 || m_count == 0) + return ValueObjectSP(); + if (!m_bool_type) + return ValueObjectSP(); + size_t byte_idx = (idx >> 3); // divide by 8 to get byte index + size_t bit_index = (idx & 7); // efficient idx % 8 for bit index + lldb::addr_t byte_location = m_base_data_address + byte_idx; + ProcessSP process_sp(m_exe_ctx_ref.GetProcessSP()); + if (!process_sp) + return ValueObjectSP(); + uint8_t byte = 0; + uint8_t mask = 0; + Error err; + size_t bytes_read = process_sp->ReadMemory(byte_location, &byte, 1, err); + if (err.Fail() || bytes_read == 0) + return ValueObjectSP(); + switch (bit_index) + { + case 0: + mask = 1; break; + case 1: + mask = 2; break; + case 2: + mask = 4; break; + case 3: + mask = 8; break; + case 4: + mask = 16; break; + case 5: + mask = 32; break; + case 6: + mask = 64; break; + case 7: + mask = 128; break; + default: + return ValueObjectSP(); + } + bool bit_set = ((byte & mask) != 0); + DataBufferSP buffer_sp(new DataBufferHeap(m_bool_type.GetByteSize(nullptr),0)); + if (bit_set && buffer_sp && buffer_sp->GetBytes()) + *(buffer_sp->GetBytes()) = 1; // regardless of endianness, anything non-zero is true + StreamString name; name.Printf("[%" PRIu64 "]", (uint64_t)idx); + ValueObjectSP retval_sp(CreateValueObjectFromData(name.GetData(), DataExtractor(buffer_sp, process_sp->GetByteOrder(), process_sp->GetAddressByteSize()), m_exe_ctx_ref, m_bool_type)); + if (retval_sp) + m_children[idx] = retval_sp; + return retval_sp; +} + +/*(std::__1::vector<std::__1::allocator<bool> >) vBool = { + __begin_ = 0x00000001001000e0 + __size_ = 56 + __cap_alloc_ = { + std::__1::__libcpp_compressed_pair_imp<unsigned long, std::__1::allocator<unsigned long> > = { + __first_ = 1 + } + } + }*/ + +bool +lldb_private::formatters::LibcxxVectorBoolSyntheticFrontEnd::Update() +{ + m_children.clear(); + ValueObjectSP valobj_sp = m_backend.GetSP(); + if (!valobj_sp) + return false; + m_exe_ctx_ref = valobj_sp->GetExecutionContextRef(); + ValueObjectSP size_sp(valobj_sp->GetChildMemberWithName(ConstString("__size_"), true)); + if (!size_sp) + return false; + m_count = size_sp->GetValueAsUnsigned(0); + if (!m_count) + return true; + ValueObjectSP begin_sp(valobj_sp->GetChildMemberWithName(ConstString("__begin_"), true)); + if (!begin_sp) + { + m_count = 0; + return false; + } + m_base_data_address = begin_sp->GetValueAsUnsigned(0); + if (!m_base_data_address) + { + m_count = 0; + return false; + } + return false; +} + +bool +lldb_private::formatters::LibcxxVectorBoolSyntheticFrontEnd::MightHaveChildren () +{ + return true; +} + +size_t +lldb_private::formatters::LibcxxVectorBoolSyntheticFrontEnd::GetIndexOfChildWithName (const ConstString &name) +{ + if (!m_count || !m_base_data_address) + return UINT32_MAX; + const char* item_name = name.GetCString(); + uint32_t idx = ExtractIndexFromString(item_name); + if (idx < UINT32_MAX && idx >= CalculateNumChildren()) + return UINT32_MAX; + return idx; +} + +lldb_private::formatters::LibcxxVectorBoolSyntheticFrontEnd::~LibcxxVectorBoolSyntheticFrontEnd () +{} + +SyntheticChildrenFrontEnd* +lldb_private::formatters::LibcxxVectorBoolSyntheticFrontEndCreator (CXXSyntheticChildren*, lldb::ValueObjectSP valobj_sp) +{ + if (!valobj_sp) + return NULL; + return (new LibcxxVectorBoolSyntheticFrontEnd(valobj_sp)); +} + +/* + (lldb) fr var ibeg --raw --ptr-depth 1 + (std::__1::__map_iterator<std::__1::__tree_iterator<std::__1::pair<int, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::__tree_node<std::__1::pair<int, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, void *> *, long> >) ibeg = { + __i_ = { + __ptr_ = 0x0000000100103870 { + std::__1::__tree_node_base<void *> = { + std::__1::__tree_end_node<std::__1::__tree_node_base<void *> *> = { + __left_ = 0x0000000000000000 + } + __right_ = 0x0000000000000000 + __parent_ = 0x00000001001038b0 + __is_black_ = true + } + __value_ = { + first = 0 + second = { std::string } + */ + +lldb_private::formatters::LibCxxMapIteratorSyntheticFrontEnd::LibCxxMapIteratorSyntheticFrontEnd (lldb::ValueObjectSP valobj_sp) : +SyntheticChildrenFrontEnd(*valobj_sp.get()), +m_pair_ptr() +{ + if (valobj_sp) + Update(); +} + +bool +lldb_private::formatters::LibCxxMapIteratorSyntheticFrontEnd::Update() +{ + ValueObjectSP valobj_sp = m_backend.GetSP(); + if (!valobj_sp) + return false; + + TargetSP target_sp(valobj_sp->GetTargetSP()); + + if (!target_sp) + return false; + + if (!valobj_sp) + return false; + + // this must be a ValueObject* because it is a child of the ValueObject we are producing children for + // it if were a ValueObjectSP, we would end up with a loop (iterator -> synthetic -> child -> parent == iterator) + // and that would in turn leak memory by never allowing the ValueObjects to die and free their memory + m_pair_ptr = valobj_sp->GetValueForExpressionPath(".__i_.__ptr_->__value_", + NULL, + NULL, + NULL, + ValueObject::GetValueForExpressionPathOptions().DontCheckDotVsArrowSyntax().SetSyntheticChildrenTraversal(ValueObject::GetValueForExpressionPathOptions::SyntheticChildrenTraversal::None), + NULL).get(); + + return false; +} + +size_t +lldb_private::formatters::LibCxxMapIteratorSyntheticFrontEnd::CalculateNumChildren () +{ + return 2; +} + +lldb::ValueObjectSP +lldb_private::formatters::LibCxxMapIteratorSyntheticFrontEnd::GetChildAtIndex (size_t idx) +{ + if (!m_pair_ptr) + return lldb::ValueObjectSP(); + return m_pair_ptr->GetChildAtIndex(idx, true); +} + +bool +lldb_private::formatters::LibCxxMapIteratorSyntheticFrontEnd::MightHaveChildren () +{ + return true; +} + +size_t +lldb_private::formatters::LibCxxMapIteratorSyntheticFrontEnd::GetIndexOfChildWithName (const ConstString &name) +{ + if (name == ConstString("first")) + return 0; + if (name == ConstString("second")) + return 1; + return UINT32_MAX; +} + +lldb_private::formatters::LibCxxMapIteratorSyntheticFrontEnd::~LibCxxMapIteratorSyntheticFrontEnd () +{ + // this will be deleted when its parent dies (since it's a child object) + //delete m_pair_ptr; +} + +SyntheticChildrenFrontEnd* +lldb_private::formatters::LibCxxMapIteratorSyntheticFrontEndCreator (CXXSyntheticChildren*, lldb::ValueObjectSP valobj_sp) +{ + if (!valobj_sp) + return NULL; + return (new LibCxxMapIteratorSyntheticFrontEnd(valobj_sp)); +} + +/* + (lldb) fr var ibeg --raw --ptr-depth 1 -T + (std::__1::__wrap_iter<int *>) ibeg = { + (std::__1::__wrap_iter<int *>::iterator_type) __i = 0x00000001001037a0 { + (int) *__i = 1 + } + } +*/ + +SyntheticChildrenFrontEnd* +lldb_private::formatters::LibCxxVectorIteratorSyntheticFrontEndCreator (CXXSyntheticChildren*, lldb::ValueObjectSP valobj_sp) +{ + static ConstString g_item_name; + if (!g_item_name) + g_item_name.SetCString("__i"); + if (!valobj_sp) + return NULL; + return (new VectorIteratorSyntheticFrontEnd(valobj_sp,g_item_name)); +} + +lldb_private::formatters::LibcxxSharedPtrSyntheticFrontEnd::LibcxxSharedPtrSyntheticFrontEnd (lldb::ValueObjectSP valobj_sp) : +SyntheticChildrenFrontEnd(*valobj_sp.get()), +m_cntrl(NULL), +m_count_sp(), +m_weak_count_sp(), +m_ptr_size(0), +m_byte_order(lldb::eByteOrderInvalid) +{ + if (valobj_sp) + Update(); +} + +size_t +lldb_private::formatters::LibcxxSharedPtrSyntheticFrontEnd::CalculateNumChildren () +{ + return (m_cntrl ? 1 : 0); +} + +lldb::ValueObjectSP +lldb_private::formatters::LibcxxSharedPtrSyntheticFrontEnd::GetChildAtIndex (size_t idx) +{ + if (!m_cntrl) + return lldb::ValueObjectSP(); + + ValueObjectSP valobj_sp = m_backend.GetSP(); + if (!valobj_sp) + return lldb::ValueObjectSP(); + + if (idx == 0) + return valobj_sp->GetChildMemberWithName(ConstString("__ptr_"), true); + + if (idx > 2) + return lldb::ValueObjectSP(); + + if (idx == 1) + { + if (!m_count_sp) + { + ValueObjectSP shared_owners_sp(m_cntrl->GetChildMemberWithName(ConstString("__shared_owners_"),true)); + if (!shared_owners_sp) + return lldb::ValueObjectSP(); + uint64_t count = 1 + shared_owners_sp->GetValueAsUnsigned(0); + DataExtractor data(&count, 8, m_byte_order, m_ptr_size); + m_count_sp = CreateValueObjectFromData("count", data, valobj_sp->GetExecutionContextRef(), shared_owners_sp->GetCompilerType()); + } + return m_count_sp; + } + else /* if (idx == 2) */ + { + if (!m_weak_count_sp) + { + ValueObjectSP shared_weak_owners_sp(m_cntrl->GetChildMemberWithName(ConstString("__shared_weak_owners_"),true)); + if (!shared_weak_owners_sp) + return lldb::ValueObjectSP(); + uint64_t count = 1 + shared_weak_owners_sp->GetValueAsUnsigned(0); + DataExtractor data(&count, 8, m_byte_order, m_ptr_size); + m_weak_count_sp = CreateValueObjectFromData("count", data, valobj_sp->GetExecutionContextRef(), shared_weak_owners_sp->GetCompilerType()); + } + return m_weak_count_sp; + } +} + +bool +lldb_private::formatters::LibcxxSharedPtrSyntheticFrontEnd::Update() +{ + m_count_sp.reset(); + m_weak_count_sp.reset(); + m_cntrl = NULL; + + ValueObjectSP valobj_sp = m_backend.GetSP(); + if (!valobj_sp) + return false; + + TargetSP target_sp(valobj_sp->GetTargetSP()); + if (!target_sp) + return false; + + m_byte_order = target_sp->GetArchitecture().GetByteOrder(); + m_ptr_size = target_sp->GetArchitecture().GetAddressByteSize(); + + lldb::ValueObjectSP cntrl_sp(valobj_sp->GetChildMemberWithName(ConstString("__cntrl_"),true)); + + m_cntrl = cntrl_sp.get(); // need to store the raw pointer to avoid a circular dependency + return false; +} + +bool +lldb_private::formatters::LibcxxSharedPtrSyntheticFrontEnd::MightHaveChildren () +{ + return true; +} + +size_t +lldb_private::formatters::LibcxxSharedPtrSyntheticFrontEnd::GetIndexOfChildWithName (const ConstString &name) +{ + if (name == ConstString("__ptr_")) + return 0; + if (name == ConstString("count")) + return 1; + if (name == ConstString("weak_count")) + return 2; + return UINT32_MAX; +} + +lldb_private::formatters::LibcxxSharedPtrSyntheticFrontEnd::~LibcxxSharedPtrSyntheticFrontEnd () +{} + +SyntheticChildrenFrontEnd* +lldb_private::formatters::LibcxxSharedPtrSyntheticFrontEndCreator (CXXSyntheticChildren*, lldb::ValueObjectSP valobj_sp) +{ + if (!valobj_sp) + return NULL; + return (new LibcxxSharedPtrSyntheticFrontEnd(valobj_sp)); +} + +bool +lldb_private::formatters::LibcxxContainerSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& options) +{ + if (valobj.IsPointerType()) + { + uint64_t value = valobj.GetValueAsUnsigned(0); + if (!value) + return false; + stream.Printf("0x%016" PRIx64 " ", value); + } + return FormatEntity::FormatStringRef("size=${svar%#}", stream, NULL, NULL, NULL, &valobj, false, false); +} + +// the field layout in a libc++ string (cap, side, data or data, size, cap) +enum LibcxxStringLayoutMode +{ + eLibcxxStringLayoutModeCSD = 0, + eLibcxxStringLayoutModeDSC = 1, + eLibcxxStringLayoutModeInvalid = 0xffff +}; + +// this function abstracts away the layout and mode details of a libc++ string +// and returns the address of the data and the size ready for callers to consume +static bool +ExtractLibcxxStringInfo (ValueObject& valobj, + ValueObjectSP &location_sp, + uint64_t& size) +{ + ValueObjectSP D(valobj.GetChildAtIndexPath({0,0,0,0})); + if (!D) + return false; + + ValueObjectSP layout_decider(D->GetChildAtIndexPath({0,0})); + + // this child should exist + if (!layout_decider) + return false; + + ConstString g_data_name("__data_"); + ConstString g_size_name("__size_"); + bool short_mode = false; // this means the string is in short-mode and the data is stored inline + LibcxxStringLayoutMode layout = (layout_decider->GetName() == g_data_name) ? eLibcxxStringLayoutModeDSC : eLibcxxStringLayoutModeCSD; + uint64_t size_mode_value = 0; + + if (layout == eLibcxxStringLayoutModeDSC) + { + ValueObjectSP size_mode(D->GetChildAtIndexPath({1,1,0})); + if (!size_mode) + return false; + + if (size_mode->GetName() != g_size_name) + { + // we are hitting the padding structure, move along + size_mode = D->GetChildAtIndexPath({1,1,1}); + if (!size_mode) + return false; + } + + size_mode_value = (size_mode->GetValueAsUnsigned(0)); + short_mode = ((size_mode_value & 0x80) == 0); + } + else + { + ValueObjectSP size_mode(D->GetChildAtIndexPath({1,0,0})); + if (!size_mode) + return false; + + size_mode_value = (size_mode->GetValueAsUnsigned(0)); + short_mode = ((size_mode_value & 1) == 0); + } + + if (short_mode) + { + ValueObjectSP s(D->GetChildAtIndex(1, true)); + if (!s) + return false; + location_sp = s->GetChildAtIndex((layout == eLibcxxStringLayoutModeDSC) ? 0 : 1, true); + size = (layout == eLibcxxStringLayoutModeDSC) ? size_mode_value : ((size_mode_value >> 1) % 256); + return (location_sp.get() != nullptr); + } + else + { + ValueObjectSP l(D->GetChildAtIndex(0, true)); + if (!l) + return false; + // we can use the layout_decider object as the data pointer + location_sp = (layout == eLibcxxStringLayoutModeDSC) ? layout_decider : l->GetChildAtIndex(2, true); + ValueObjectSP size_vo(l->GetChildAtIndex(1, true)); + if (!size_vo || !location_sp) + return false; + size = size_vo->GetValueAsUnsigned(0); + return true; + } +} + +bool +lldb_private::formatters::LibcxxWStringSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& summary_options) +{ + uint64_t size = 0; + ValueObjectSP location_sp((ValueObject*)nullptr); + if (!ExtractLibcxxStringInfo(valobj, location_sp, size)) + return false; + if (size == 0) + { + stream.Printf("L\"\""); + return true; + } + if (!location_sp) + return false; + + DataExtractor extractor; + if (summary_options.GetCapping() == TypeSummaryCapping::eTypeSummaryCapped) + size = std::min<decltype(size)>(size, valobj.GetTargetSP()->GetMaximumSizeOfStringSummary()); + location_sp->GetPointeeData(extractor, 0, size); + + // std::wstring::size() is measured in 'characters', not bytes + auto wchar_t_size = valobj.GetTargetSP()->GetScratchClangASTContext()->GetBasicType(lldb::eBasicTypeWChar).GetByteSize(nullptr); + + ReadBufferAndDumpToStreamOptions options(valobj); + options.SetData(extractor); + options.SetStream(&stream); + options.SetPrefixToken('L'); + options.SetQuote('"'); + options.SetSourceSize(size); + options.SetBinaryZeroIsTerminator(false); + + switch (wchar_t_size) + { + case 1: + lldb_private::formatters::ReadBufferAndDumpToStream<lldb_private::formatters::StringElementType::UTF8>(options); + break; + + case 2: + lldb_private::formatters::ReadBufferAndDumpToStream<lldb_private::formatters::StringElementType::UTF16>(options); + break; + + case 4: + lldb_private::formatters::ReadBufferAndDumpToStream<lldb_private::formatters::StringElementType::UTF32>(options); + break; + + default: + stream.Printf("size for wchar_t is not valid"); + return true; + } + + return true; +} + +bool +lldb_private::formatters::LibcxxStringSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& summary_options) +{ + uint64_t size = 0; + ValueObjectSP location_sp((ValueObject*)nullptr); + + if (!ExtractLibcxxStringInfo(valobj, location_sp, size)) + return false; + + if (size == 0) + { + stream.Printf("\"\""); + return true; + } + + if (!location_sp) + return false; + + DataExtractor extractor; + if (summary_options.GetCapping() == TypeSummaryCapping::eTypeSummaryCapped) + size = std::min<decltype(size)>(size, valobj.GetTargetSP()->GetMaximumSizeOfStringSummary()); + location_sp->GetPointeeData(extractor, 0, size); + + ReadBufferAndDumpToStreamOptions options(valobj); + options.SetData(extractor); + options.SetStream(&stream); + options.SetPrefixToken(0); + options.SetQuote('"'); + options.SetSourceSize(size); + options.SetBinaryZeroIsTerminator(false); + lldb_private::formatters::ReadBufferAndDumpToStream<lldb_private::formatters::StringElementType::ASCII>(options); + + return true; +} diff --git a/lldb/source/Plugins/Language/CPlusPlus/LibCxx.h b/lldb/source/Plugins/Language/CPlusPlus/LibCxx.h new file mode 100644 index 00000000000..ae00bc0ade3 --- /dev/null +++ b/lldb/source/Plugins/Language/CPlusPlus/LibCxx.h @@ -0,0 +1,141 @@ +//===-- LibCxx.h ---------------------------------------------------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#ifndef liblldb_LibCxx_h_ +#define liblldb_LibCxx_h_ + +#include "lldb/Core/Stream.h" +#include "lldb/Core/ValueObject.h" +#include "lldb/DataFormatters/TypeSummary.h" +#include "lldb/DataFormatters/TypeSynthetic.h" + +namespace lldb_private { + namespace formatters + { + + bool + LibcxxStringSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& options); // libc++ std::string + + bool + LibcxxWStringSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& options); // libc++ std::wstring + + bool + LibcxxSmartPointerSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& options); // libc++ std::shared_ptr<> and std::weak_ptr<> + + class LibcxxVectorBoolSyntheticFrontEnd : public SyntheticChildrenFrontEnd + { + public: + LibcxxVectorBoolSyntheticFrontEnd (lldb::ValueObjectSP valobj_sp); + + size_t + CalculateNumChildren() override; + + lldb::ValueObjectSP + GetChildAtIndex(size_t idx) override; + + bool + Update() override; + + bool + MightHaveChildren() override; + + size_t + GetIndexOfChildWithName(const ConstString &name) override; + + ~LibcxxVectorBoolSyntheticFrontEnd() override; + + private: + CompilerType m_bool_type; + ExecutionContextRef m_exe_ctx_ref; + uint64_t m_count; + lldb::addr_t m_base_data_address; + std::map<size_t,lldb::ValueObjectSP> m_children; + }; + + SyntheticChildrenFrontEnd* LibcxxVectorBoolSyntheticFrontEndCreator (CXXSyntheticChildren*, lldb::ValueObjectSP); + + bool + LibcxxContainerSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& options); + + class LibCxxMapIteratorSyntheticFrontEnd : public SyntheticChildrenFrontEnd + { + public: + LibCxxMapIteratorSyntheticFrontEnd (lldb::ValueObjectSP valobj_sp); + + size_t + CalculateNumChildren() override; + + lldb::ValueObjectSP + GetChildAtIndex(size_t idx) override; + + bool + Update() override; + + bool + MightHaveChildren() override; + + size_t + GetIndexOfChildWithName(const ConstString &name) override; + + ~LibCxxMapIteratorSyntheticFrontEnd() override; + + private: + ValueObject *m_pair_ptr; + }; + + SyntheticChildrenFrontEnd* LibCxxMapIteratorSyntheticFrontEndCreator (CXXSyntheticChildren*, lldb::ValueObjectSP); + + SyntheticChildrenFrontEnd* LibCxxVectorIteratorSyntheticFrontEndCreator (CXXSyntheticChildren*, lldb::ValueObjectSP); + + class LibcxxSharedPtrSyntheticFrontEnd : public SyntheticChildrenFrontEnd + { + public: + LibcxxSharedPtrSyntheticFrontEnd (lldb::ValueObjectSP valobj_sp); + + size_t + CalculateNumChildren() override; + + lldb::ValueObjectSP + GetChildAtIndex(size_t idx) override; + + bool + Update() override; + + bool + MightHaveChildren() override; + + size_t + GetIndexOfChildWithName(const ConstString &name) override; + + ~LibcxxSharedPtrSyntheticFrontEnd() override; + + private: + ValueObject* m_cntrl; + lldb::ValueObjectSP m_count_sp; + lldb::ValueObjectSP m_weak_count_sp; + uint8_t m_ptr_size; + lldb::ByteOrder m_byte_order; + }; + + SyntheticChildrenFrontEnd* LibcxxSharedPtrSyntheticFrontEndCreator (CXXSyntheticChildren*, lldb::ValueObjectSP); + + SyntheticChildrenFrontEnd* LibcxxStdVectorSyntheticFrontEndCreator (CXXSyntheticChildren*, lldb::ValueObjectSP); + + SyntheticChildrenFrontEnd* LibcxxStdListSyntheticFrontEndCreator (CXXSyntheticChildren*, lldb::ValueObjectSP); + + SyntheticChildrenFrontEnd* LibcxxStdMapSyntheticFrontEndCreator (CXXSyntheticChildren*, lldb::ValueObjectSP); + + SyntheticChildrenFrontEnd* LibcxxStdUnorderedMapSyntheticFrontEndCreator (CXXSyntheticChildren*, lldb::ValueObjectSP); + + SyntheticChildrenFrontEnd* LibcxxInitializerListSyntheticFrontEndCreator (CXXSyntheticChildren*, lldb::ValueObjectSP); + + } // namespace formatters +} // namespace lldb_private + +#endif // liblldb_LibCxx_h_ diff --git a/lldb/source/Plugins/Language/CPlusPlus/LibCxxInitializerList.cpp b/lldb/source/Plugins/Language/CPlusPlus/LibCxxInitializerList.cpp new file mode 100644 index 00000000000..ac6501f054a --- /dev/null +++ b/lldb/source/Plugins/Language/CPlusPlus/LibCxxInitializerList.cpp @@ -0,0 +1,144 @@ +//===-- LibCxxInitializerList.cpp ----------------------------------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#include "LibCxx.h" + +#include "lldb/Core/ConstString.h" +#include "lldb/Core/ValueObject.h" +#include "lldb/DataFormatters/FormattersHelpers.h" + +using namespace lldb; +using namespace lldb_private; +using namespace lldb_private::formatters; + +namespace lldb_private { + namespace formatters { + class LibcxxInitializerListSyntheticFrontEnd : public SyntheticChildrenFrontEnd + { + public: + LibcxxInitializerListSyntheticFrontEnd (lldb::ValueObjectSP valobj_sp); + + virtual size_t + CalculateNumChildren (); + + virtual lldb::ValueObjectSP + GetChildAtIndex (size_t idx); + + virtual bool + Update(); + + virtual bool + MightHaveChildren (); + + virtual size_t + GetIndexOfChildWithName (const ConstString &name); + + virtual + ~LibcxxInitializerListSyntheticFrontEnd (); + private: + ValueObject* m_start; + CompilerType m_element_type; + uint32_t m_element_size; + size_t m_num_elements; + std::map<size_t,lldb::ValueObjectSP> m_children; + }; + } +} + +lldb_private::formatters::LibcxxInitializerListSyntheticFrontEnd::LibcxxInitializerListSyntheticFrontEnd (lldb::ValueObjectSP valobj_sp) : +SyntheticChildrenFrontEnd(*valobj_sp.get()), +m_start(NULL), +m_element_type(), +m_element_size(0), +m_num_elements(0), +m_children() +{ + if (valobj_sp) + Update(); +} + +size_t +lldb_private::formatters::LibcxxInitializerListSyntheticFrontEnd::CalculateNumChildren () +{ + static ConstString g___size_("__size_"); + m_num_elements = 0; + ValueObjectSP size_sp(m_backend.GetChildMemberWithName(g___size_, true)); + if (size_sp) + m_num_elements = size_sp->GetValueAsUnsigned(0); + return m_num_elements; +} + +lldb::ValueObjectSP +lldb_private::formatters::LibcxxInitializerListSyntheticFrontEnd::GetChildAtIndex (size_t idx) +{ + if (!m_start) + return lldb::ValueObjectSP(); + + auto cached = m_children.find(idx); + if (cached != m_children.end()) + return cached->second; + + uint64_t offset = idx * m_element_size; + offset = offset + m_start->GetValueAsUnsigned(0); + StreamString name; + name.Printf("[%" PRIu64 "]", (uint64_t)idx); + ValueObjectSP child_sp = CreateValueObjectFromAddress(name.GetData(), offset, m_backend.GetExecutionContextRef(), m_element_type); + m_children[idx] = child_sp; + return child_sp; +} + +bool +lldb_private::formatters::LibcxxInitializerListSyntheticFrontEnd::Update() +{ + static ConstString g___begin_("__begin_"); + + m_start = nullptr; + m_num_elements = 0; + m_children.clear(); + lldb::TemplateArgumentKind kind; + m_element_type = m_backend.GetCompilerType().GetTemplateArgument(0, kind); + if (kind != lldb::eTemplateArgumentKindType || false == m_element_type.IsValid()) + return false; + + m_element_size = m_element_type.GetByteSize(nullptr); + + if (m_element_size > 0) + m_start = m_backend.GetChildMemberWithName(g___begin_,true).get(); // store raw pointers or end up with a circular dependency + + return false; +} + +bool +lldb_private::formatters::LibcxxInitializerListSyntheticFrontEnd::MightHaveChildren () +{ + return true; +} + +size_t +lldb_private::formatters::LibcxxInitializerListSyntheticFrontEnd::GetIndexOfChildWithName (const ConstString &name) +{ + if (!m_start) + return UINT32_MAX; + return ExtractIndexFromString(name.GetCString()); +} + +lldb_private::formatters::LibcxxInitializerListSyntheticFrontEnd::~LibcxxInitializerListSyntheticFrontEnd () +{ + // this needs to stay around because it's a child object who will follow its parent's life cycle + // delete m_start; +} + +lldb_private::SyntheticChildrenFrontEnd* +lldb_private::formatters::LibcxxInitializerListSyntheticFrontEndCreator (CXXSyntheticChildren*, lldb::ValueObjectSP valobj_sp) +{ + if (!valobj_sp) + return NULL; + return (new LibcxxInitializerListSyntheticFrontEnd(valobj_sp)); +} + diff --git a/lldb/source/Plugins/Language/CPlusPlus/LibCxxList.cpp b/lldb/source/Plugins/Language/CPlusPlus/LibCxxList.cpp new file mode 100644 index 00000000000..7da1b7a128f --- /dev/null +++ b/lldb/source/Plugins/Language/CPlusPlus/LibCxxList.cpp @@ -0,0 +1,370 @@ +//===-- LibCxxList.cpp -------------------------------------------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#include "LibCxx.h" + +#include "lldb/Core/DataBufferHeap.h" +#include "lldb/Core/Error.h" +#include "lldb/Core/Stream.h" +#include "lldb/Core/ValueObject.h" +#include "lldb/Core/ValueObjectConstResult.h" +#include "lldb/DataFormatters/FormattersHelpers.h" +#include "lldb/Host/Endian.h" +#include "lldb/Symbol/ClangASTContext.h" +#include "lldb/Target/Target.h" + +using namespace lldb; +using namespace lldb_private; +using namespace lldb_private::formatters; + +namespace lldb_private { + namespace formatters { + class LibcxxStdListSyntheticFrontEnd : public SyntheticChildrenFrontEnd + { + public: + LibcxxStdListSyntheticFrontEnd (lldb::ValueObjectSP valobj_sp); + + virtual size_t + CalculateNumChildren (); + + virtual lldb::ValueObjectSP + GetChildAtIndex (size_t idx); + + virtual bool + Update(); + + virtual bool + MightHaveChildren (); + + virtual size_t + GetIndexOfChildWithName (const ConstString &name); + + virtual + ~LibcxxStdListSyntheticFrontEnd (); + private: + bool + HasLoop(size_t); + + size_t m_list_capping_size; + static const bool g_use_loop_detect = true; + size_t m_loop_detected; + lldb::addr_t m_node_address; + ValueObject* m_head; + ValueObject* m_tail; + CompilerType m_element_type; + size_t m_count; + std::map<size_t,lldb::ValueObjectSP> m_children; + }; + } +} + +class ListEntry +{ +public: + ListEntry () {} + ListEntry (ValueObjectSP entry_sp) : m_entry_sp(entry_sp) {} + ListEntry (const ListEntry& rhs) : m_entry_sp(rhs.m_entry_sp) {} + ListEntry (ValueObject* entry) : m_entry_sp(entry ? entry->GetSP() : ValueObjectSP()) {} + + ListEntry + next () + { + if (!m_entry_sp) + return ListEntry(); + return ListEntry(m_entry_sp->GetChildMemberWithName(ConstString("__next_"), true)); + } + + ListEntry + prev () + { + if (!m_entry_sp) + return ListEntry(); + return ListEntry(m_entry_sp->GetChildMemberWithName(ConstString("__prev_"), true)); + } + + uint64_t + value () + { + if (!m_entry_sp) + return 0; + return m_entry_sp->GetValueAsUnsigned(0); + } + + bool + null() + { + return (value() == 0); + } + + explicit operator bool () + { + return GetEntry().get() != nullptr && null() == false; + } + + ValueObjectSP + GetEntry () + { + return m_entry_sp; + } + + void + SetEntry (ValueObjectSP entry) + { + m_entry_sp = entry; + } + + bool + operator == (const ListEntry& rhs) const + { + return (rhs.m_entry_sp.get() == m_entry_sp.get()); + } + +private: + ValueObjectSP m_entry_sp; +}; + +class ListIterator +{ +public: + ListIterator () {} + ListIterator (ListEntry entry) : m_entry(entry) {} + ListIterator (ValueObjectSP entry) : m_entry(entry) {} + ListIterator (const ListIterator& rhs) : m_entry(rhs.m_entry) {} + ListIterator (ValueObject* entry) : m_entry(entry) {} + + ValueObjectSP + value () + { + return m_entry.GetEntry(); + } + + ValueObjectSP + advance (size_t count) + { + if (count == 0) + return m_entry.GetEntry(); + if (count == 1) + { + next (); + return m_entry.GetEntry(); + } + while (count > 0) + { + next (); + count--; + if (m_entry.null()) + return lldb::ValueObjectSP(); + } + return m_entry.GetEntry(); + } + + bool + operator == (const ListIterator& rhs) const + { + return (rhs.m_entry == m_entry); + } + +protected: + void + next () + { + m_entry = m_entry.next(); + } + + void + prev () + { + m_entry = m_entry.prev(); + } +private: + ListEntry m_entry; +}; + +lldb_private::formatters::LibcxxStdListSyntheticFrontEnd::LibcxxStdListSyntheticFrontEnd (lldb::ValueObjectSP valobj_sp) : +SyntheticChildrenFrontEnd(*valobj_sp.get()), +m_list_capping_size(0), +m_loop_detected(0), +m_node_address(), +m_head(NULL), +m_tail(NULL), +m_element_type(), +m_count(UINT32_MAX), +m_children() +{ + if (valobj_sp) + Update(); +} + +bool +lldb_private::formatters::LibcxxStdListSyntheticFrontEnd::HasLoop(size_t count) +{ + if (g_use_loop_detect == false) + return false; + // don't bother checking for a loop if we won't actually need to jump nodes + if (m_count < 2) + return false; + auto steps_left = std::min(count,m_count); + auto steps_left_save = steps_left; + ListEntry slow(m_head); + ListEntry fast(m_head); + while (steps_left-- > 0) + { + slow = slow.next(); + fast = fast.next(); + if (fast.next()) + fast = fast.next().next(); + else + fast = nullptr; + if (!slow || !fast) + return false; + if (slow == fast) + return true; + } + m_loop_detected = steps_left_save; + return false; +} + +size_t +lldb_private::formatters::LibcxxStdListSyntheticFrontEnd::CalculateNumChildren () +{ + if (m_count != UINT32_MAX) + return m_count; + if (!m_head || !m_tail || m_node_address == 0) + return 0; + ValueObjectSP size_alloc(m_backend.GetChildMemberWithName(ConstString("__size_alloc_"), true)); + if (size_alloc) + { + ValueObjectSP first(size_alloc->GetChildMemberWithName(ConstString("__first_"), true)); + if (first) + { + m_count = first->GetValueAsUnsigned(UINT32_MAX); + } + } + if (m_count != UINT32_MAX) + { + return m_count; + } + else + { + uint64_t next_val = m_head->GetValueAsUnsigned(0); + uint64_t prev_val = m_tail->GetValueAsUnsigned(0); + if (next_val == 0 || prev_val == 0) + return 0; + if (next_val == m_node_address) + return 0; + if (next_val == prev_val) + return 1; + uint64_t size = 2; + ListEntry current(m_head); + while (current.next() && current.next().value() != m_node_address) + { + size++; + current = current.next(); + if (size > m_list_capping_size) + break; + } + return m_count = (size-1); + } +} + +lldb::ValueObjectSP +lldb_private::formatters::LibcxxStdListSyntheticFrontEnd::GetChildAtIndex (size_t idx) +{ + if (idx >= CalculateNumChildren()) + return lldb::ValueObjectSP(); + + if (!m_head || !m_tail || m_node_address == 0) + return lldb::ValueObjectSP(); + + auto cached = m_children.find(idx); + if (cached != m_children.end()) + return cached->second; + + if (m_loop_detected <= idx) + if (HasLoop(idx)) + return lldb::ValueObjectSP(); + + ListIterator current(m_head); + ValueObjectSP current_sp(current.advance(idx)); + if (!current_sp) + return lldb::ValueObjectSP(); + current_sp = current_sp->GetChildMemberWithName(ConstString("__value_"), true); + if (!current_sp) + return lldb::ValueObjectSP(); + // we need to copy current_sp into a new object otherwise we will end up with all items named __value_ + DataExtractor data; + Error error; + current_sp->GetData(data, error); + if (error.Fail()) + return lldb::ValueObjectSP(); + + StreamString name; + name.Printf("[%" PRIu64 "]", (uint64_t)idx); + return (m_children[idx] = CreateValueObjectFromData(name.GetData(), data, m_backend.GetExecutionContextRef(), m_element_type)); +} + +bool +lldb_private::formatters::LibcxxStdListSyntheticFrontEnd::Update() +{ + m_children.clear(); + m_head = m_tail = NULL; + m_node_address = 0; + m_count = UINT32_MAX; + m_loop_detected = false; + Error err; + ValueObjectSP backend_addr(m_backend.AddressOf(err)); + m_list_capping_size = 0; + if (m_backend.GetTargetSP()) + m_list_capping_size = m_backend.GetTargetSP()->GetMaximumNumberOfChildrenToDisplay(); + if (m_list_capping_size == 0) + m_list_capping_size = 255; + if (err.Fail() || backend_addr.get() == NULL) + return false; + m_node_address = backend_addr->GetValueAsUnsigned(0); + if (!m_node_address || m_node_address == LLDB_INVALID_ADDRESS) + return false; + ValueObjectSP impl_sp(m_backend.GetChildMemberWithName(ConstString("__end_"),true)); + if (!impl_sp) + return false; + CompilerType list_type = m_backend.GetCompilerType(); + if (list_type.IsReferenceType()) + list_type = list_type.GetNonReferenceType(); + + if (list_type.GetNumTemplateArguments() == 0) + return false; + lldb::TemplateArgumentKind kind; + m_element_type = list_type.GetTemplateArgument(0, kind); + m_head = impl_sp->GetChildMemberWithName(ConstString("__next_"), true).get(); + m_tail = impl_sp->GetChildMemberWithName(ConstString("__prev_"), true).get(); + return false; +} + +bool +lldb_private::formatters::LibcxxStdListSyntheticFrontEnd::MightHaveChildren () +{ + return true; +} + +size_t +lldb_private::formatters::LibcxxStdListSyntheticFrontEnd::GetIndexOfChildWithName (const ConstString &name) +{ + return ExtractIndexFromString(name.GetCString()); +} + +lldb_private::formatters::LibcxxStdListSyntheticFrontEnd::~LibcxxStdListSyntheticFrontEnd () +{} + +SyntheticChildrenFrontEnd* +lldb_private::formatters::LibcxxStdListSyntheticFrontEndCreator (CXXSyntheticChildren*, lldb::ValueObjectSP valobj_sp) +{ + if (!valobj_sp) + return NULL; + return (new LibcxxStdListSyntheticFrontEnd(valobj_sp)); +} + diff --git a/lldb/source/Plugins/Language/CPlusPlus/LibCxxMap.cpp b/lldb/source/Plugins/Language/CPlusPlus/LibCxxMap.cpp new file mode 100644 index 00000000000..99557fcae7f --- /dev/null +++ b/lldb/source/Plugins/Language/CPlusPlus/LibCxxMap.cpp @@ -0,0 +1,452 @@ +//===-- LibCxxList.cpp -------------------------------------------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#include "LibCxx.h" + +#include "lldb/Core/DataBufferHeap.h" +#include "lldb/Core/Error.h" +#include "lldb/Core/Stream.h" +#include "lldb/Core/ValueObject.h" +#include "lldb/Core/ValueObjectConstResult.h" +#include "lldb/DataFormatters/FormattersHelpers.h" +#include "lldb/Host/Endian.h" +#include "lldb/Symbol/ClangASTContext.h" +#include "lldb/Target/Target.h" + +using namespace lldb; +using namespace lldb_private; +using namespace lldb_private::formatters; + +namespace lldb_private { + namespace formatters { + class LibcxxStdMapSyntheticFrontEnd : public SyntheticChildrenFrontEnd + { + public: + LibcxxStdMapSyntheticFrontEnd (lldb::ValueObjectSP valobj_sp); + + virtual size_t + CalculateNumChildren (); + + virtual lldb::ValueObjectSP + GetChildAtIndex (size_t idx); + + virtual bool + Update(); + + virtual bool + MightHaveChildren (); + + virtual size_t + GetIndexOfChildWithName (const ConstString &name); + + virtual + ~LibcxxStdMapSyntheticFrontEnd (); + private: + bool + GetDataType(); + + void + GetValueOffset (const lldb::ValueObjectSP& node); + + ValueObject* m_tree; + ValueObject* m_root_node; + CompilerType m_element_type; + uint32_t m_skip_size; + size_t m_count; + std::map<size_t,lldb::ValueObjectSP> m_children; + }; + } +} + +class MapEntry +{ +public: + MapEntry () {} + explicit MapEntry (ValueObjectSP entry_sp) : m_entry_sp(entry_sp) {} + MapEntry (const MapEntry& rhs) : m_entry_sp(rhs.m_entry_sp) {} + explicit MapEntry (ValueObject* entry) : m_entry_sp(entry ? entry->GetSP() : ValueObjectSP()) {} + + ValueObjectSP + left () const + { + static ConstString g_left("__left_"); + if (!m_entry_sp) + return m_entry_sp; + return m_entry_sp->GetChildMemberWithName(g_left, true); + } + + ValueObjectSP + right () const + { + static ConstString g_right("__right_"); + if (!m_entry_sp) + return m_entry_sp; + return m_entry_sp->GetChildMemberWithName(g_right, true); + } + + ValueObjectSP + parent () const + { + static ConstString g_parent("__parent_"); + if (!m_entry_sp) + return m_entry_sp; + return m_entry_sp->GetChildMemberWithName(g_parent, true); + } + + uint64_t + value () const + { + if (!m_entry_sp) + return 0; + return m_entry_sp->GetValueAsUnsigned(0); + } + + bool + error () const + { + if (!m_entry_sp) + return true; + return m_entry_sp->GetError().Fail(); + } + + bool + null() const + { + return (value() == 0); + } + + ValueObjectSP + GetEntry () const + { + return m_entry_sp; + } + + void + SetEntry (ValueObjectSP entry) + { + m_entry_sp = entry; + } + + bool + operator == (const MapEntry& rhs) const + { + return (rhs.m_entry_sp.get() == m_entry_sp.get()); + } + +private: + ValueObjectSP m_entry_sp; +}; + +class MapIterator +{ +public: + MapIterator () {} + MapIterator (MapEntry entry, size_t depth = 0) : m_entry(entry), m_max_depth(depth), m_error(false) {} + MapIterator (ValueObjectSP entry, size_t depth = 0) : m_entry(entry), m_max_depth(depth), m_error(false) {} + MapIterator (const MapIterator& rhs) : m_entry(rhs.m_entry),m_max_depth(rhs.m_max_depth), m_error(false) {} + MapIterator (ValueObject* entry, size_t depth = 0) : m_entry(entry), m_max_depth(depth), m_error(false) {} + + ValueObjectSP + value () + { + return m_entry.GetEntry(); + } + + ValueObjectSP + advance (size_t count) + { + ValueObjectSP fail(nullptr); + if (m_error) + return fail; + size_t steps = 0; + while (count > 0) + { + next(); + count--, steps++; + if (m_error || + m_entry.null() || + (steps > m_max_depth)) + return fail; + } + return m_entry.GetEntry(); + } +protected: + void + next () + { + if (m_entry.null()) + return; + MapEntry right(m_entry.right()); + if (right.null() == false) + { + m_entry = tree_min(std::move(right)); + return; + } + size_t steps = 0; + while (!is_left_child(m_entry)) + { + if (m_entry.error()) + { + m_error = true; + return; + } + m_entry.SetEntry(m_entry.parent()); + steps++; + if (steps > m_max_depth) + { + m_entry = MapEntry(); + return; + } + } + m_entry = MapEntry(m_entry.parent()); + } + +private: + MapEntry + tree_min (MapEntry&& x) + { + if (x.null()) + return MapEntry(); + MapEntry left(x.left()); + size_t steps = 0; + while (left.null() == false) + { + if (left.error()) + { + m_error = true; + return MapEntry(); + } + x = left; + left.SetEntry(x.left()); + steps++; + if (steps > m_max_depth) + return MapEntry(); + } + return x; + } + + bool + is_left_child (const MapEntry& x) + { + if (x.null()) + return false; + MapEntry rhs(x.parent()); + rhs.SetEntry(rhs.left()); + return x.value() == rhs.value(); + } + + MapEntry m_entry; + size_t m_max_depth; + bool m_error; +}; + +lldb_private::formatters::LibcxxStdMapSyntheticFrontEnd::LibcxxStdMapSyntheticFrontEnd (lldb::ValueObjectSP valobj_sp) : +SyntheticChildrenFrontEnd(*valobj_sp.get()), +m_tree(NULL), +m_root_node(NULL), +m_element_type(), +m_skip_size(UINT32_MAX), +m_count(UINT32_MAX), +m_children() +{ + if (valobj_sp) + Update(); +} + +size_t +lldb_private::formatters::LibcxxStdMapSyntheticFrontEnd::CalculateNumChildren () +{ + if (m_count != UINT32_MAX) + return m_count; + if (m_tree == NULL) + return 0; + ValueObjectSP m_item(m_tree->GetChildMemberWithName(ConstString("__pair3_"), true)); + if (!m_item) + return 0; + m_item = m_item->GetChildMemberWithName(ConstString("__first_"), true); + if (!m_item) + return 0; + m_count = m_item->GetValueAsUnsigned(0); + return m_count; +} + +bool +lldb_private::formatters::LibcxxStdMapSyntheticFrontEnd::GetDataType() +{ + if (m_element_type.GetOpaqueQualType() && m_element_type.GetTypeSystem()) + return true; + m_element_type.Clear(); + ValueObjectSP deref; + Error error; + deref = m_root_node->Dereference(error); + if (!deref || error.Fail()) + return false; + deref = deref->GetChildMemberWithName(ConstString("__value_"), true); + if (!deref) + return false; + m_element_type = deref->GetCompilerType(); + return true; +} + +void +lldb_private::formatters::LibcxxStdMapSyntheticFrontEnd::GetValueOffset (const lldb::ValueObjectSP& node) +{ + if (m_skip_size != UINT32_MAX) + return; + if (!node) + return; + CompilerType node_type(node->GetCompilerType()); + uint64_t bit_offset; + if (node_type.GetIndexOfFieldWithName("__value_", NULL, &bit_offset) == UINT32_MAX) + return; + m_skip_size = bit_offset / 8u; +} + +lldb::ValueObjectSP +lldb_private::formatters::LibcxxStdMapSyntheticFrontEnd::GetChildAtIndex (size_t idx) +{ + static ConstString g___cc("__cc"); + static ConstString g___nc("__nc"); + + + if (idx >= CalculateNumChildren()) + return lldb::ValueObjectSP(); + if (m_tree == NULL || m_root_node == NULL) + return lldb::ValueObjectSP(); + + auto cached = m_children.find(idx); + if (cached != m_children.end()) + return cached->second; + + bool need_to_skip = (idx > 0); + MapIterator iterator(m_root_node, CalculateNumChildren()); + ValueObjectSP iterated_sp(iterator.advance(idx)); + if (iterated_sp.get() == NULL) + { + // this tree is garbage - stop + m_tree = NULL; // this will stop all future searches until an Update() happens + return iterated_sp; + } + if (GetDataType()) + { + if (!need_to_skip) + { + Error error; + iterated_sp = iterated_sp->Dereference(error); + if (!iterated_sp || error.Fail()) + { + m_tree = NULL; + return lldb::ValueObjectSP(); + } + GetValueOffset(iterated_sp); + iterated_sp = iterated_sp->GetChildMemberWithName(ConstString("__value_"), true); + if (!iterated_sp) + { + m_tree = NULL; + return lldb::ValueObjectSP(); + } + } + else + { + // because of the way our debug info is made, we need to read item 0 first + // so that we can cache information used to generate other elements + if (m_skip_size == UINT32_MAX) + GetChildAtIndex(0); + if (m_skip_size == UINT32_MAX) + { + m_tree = NULL; + return lldb::ValueObjectSP(); + } + iterated_sp = iterated_sp->GetSyntheticChildAtOffset(m_skip_size, m_element_type, true); + if (!iterated_sp) + { + m_tree = NULL; + return lldb::ValueObjectSP(); + } + } + } + else + { + m_tree = NULL; + return lldb::ValueObjectSP(); + } + // at this point we have a valid + // we need to copy current_sp into a new object otherwise we will end up with all items named __value_ + DataExtractor data; + Error error; + iterated_sp->GetData(data, error); + if (error.Fail()) + { + m_tree = NULL; + return lldb::ValueObjectSP(); + } + StreamString name; + name.Printf("[%" PRIu64 "]", (uint64_t)idx); + auto potential_child_sp = CreateValueObjectFromData(name.GetData(), data, m_backend.GetExecutionContextRef(), m_element_type); + if (potential_child_sp) + { + switch (potential_child_sp->GetNumChildren()) + { + case 1: + { + auto child0_sp = potential_child_sp->GetChildAtIndex(0, true); + if (child0_sp && child0_sp->GetName() == g___cc) + potential_child_sp = child0_sp; + break; + } + case 2: + { + auto child0_sp = potential_child_sp->GetChildAtIndex(0, true); + auto child1_sp = potential_child_sp->GetChildAtIndex(1, true); + if (child0_sp && child0_sp->GetName() == g___cc && + child1_sp && child1_sp->GetName() == g___nc) + potential_child_sp = child0_sp; + break; + } + } + potential_child_sp->SetName(ConstString(name.GetData())); + } + return (m_children[idx] = potential_child_sp); +} + +bool +lldb_private::formatters::LibcxxStdMapSyntheticFrontEnd::Update() +{ + m_count = UINT32_MAX; + m_tree = m_root_node = NULL; + m_children.clear(); + m_tree = m_backend.GetChildMemberWithName(ConstString("__tree_"), true).get(); + if (!m_tree) + return false; + m_root_node = m_tree->GetChildMemberWithName(ConstString("__begin_node_"), true).get(); + return false; +} + +bool +lldb_private::formatters::LibcxxStdMapSyntheticFrontEnd::MightHaveChildren () +{ + return true; +} + +size_t +lldb_private::formatters::LibcxxStdMapSyntheticFrontEnd::GetIndexOfChildWithName (const ConstString &name) +{ + return ExtractIndexFromString(name.GetCString()); +} + +lldb_private::formatters::LibcxxStdMapSyntheticFrontEnd::~LibcxxStdMapSyntheticFrontEnd () +{} + +SyntheticChildrenFrontEnd* +lldb_private::formatters::LibcxxStdMapSyntheticFrontEndCreator (CXXSyntheticChildren*, lldb::ValueObjectSP valobj_sp) +{ + if (!valobj_sp) + return NULL; + return (new LibcxxStdMapSyntheticFrontEnd(valobj_sp)); +} diff --git a/lldb/source/Plugins/Language/CPlusPlus/LibCxxUnorderedMap.cpp b/lldb/source/Plugins/Language/CPlusPlus/LibCxxUnorderedMap.cpp new file mode 100644 index 00000000000..82af5bd497e --- /dev/null +++ b/lldb/source/Plugins/Language/CPlusPlus/LibCxxUnorderedMap.cpp @@ -0,0 +1,172 @@ +//===-- LibCxxUnorderedMap.cpp -----------------------------------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#include "LibCxx.h" + +#include "lldb/Core/DataBufferHeap.h" +#include "lldb/Core/Error.h" +#include "lldb/Core/Stream.h" +#include "lldb/Core/ValueObject.h" +#include "lldb/Core/ValueObjectConstResult.h" +#include "lldb/DataFormatters/FormattersHelpers.h" +#include "lldb/Host/Endian.h" +#include "lldb/Symbol/ClangASTContext.h" +#include "lldb/Target/Target.h" + +using namespace lldb; +using namespace lldb_private; +using namespace lldb_private::formatters; + +namespace lldb_private { + namespace formatters { + class LibcxxStdUnorderedMapSyntheticFrontEnd : public SyntheticChildrenFrontEnd + { + public: + LibcxxStdUnorderedMapSyntheticFrontEnd (lldb::ValueObjectSP valobj_sp); + + virtual size_t + CalculateNumChildren (); + + virtual lldb::ValueObjectSP + GetChildAtIndex (size_t idx); + + virtual bool + Update(); + + virtual bool + MightHaveChildren (); + + virtual size_t + GetIndexOfChildWithName (const ConstString &name); + + virtual + ~LibcxxStdUnorderedMapSyntheticFrontEnd (); + private: + + ValueObject* m_tree; + size_t m_num_elements; + ValueObject* m_next_element; + std::map<size_t,lldb::ValueObjectSP> m_children; + std::vector<std::pair<ValueObject*, uint64_t> > m_elements_cache; + }; + } +} + +lldb_private::formatters::LibcxxStdUnorderedMapSyntheticFrontEnd::LibcxxStdUnorderedMapSyntheticFrontEnd (lldb::ValueObjectSP valobj_sp) : +SyntheticChildrenFrontEnd(*valobj_sp.get()), +m_tree(NULL), +m_num_elements(0), +m_next_element(nullptr), +m_children(), +m_elements_cache() +{ + if (valobj_sp) + Update(); +} + +size_t +lldb_private::formatters::LibcxxStdUnorderedMapSyntheticFrontEnd::CalculateNumChildren () +{ + if (m_num_elements != UINT32_MAX) + return m_num_elements; + return 0; +} + +lldb::ValueObjectSP +lldb_private::formatters::LibcxxStdUnorderedMapSyntheticFrontEnd::GetChildAtIndex (size_t idx) +{ + if (idx >= CalculateNumChildren()) + return lldb::ValueObjectSP(); + if (m_tree == NULL) + return lldb::ValueObjectSP(); + + auto cached = m_children.find(idx); + if (cached != m_children.end()) + return cached->second; + + while (idx >= m_elements_cache.size()) + { + if (m_next_element == nullptr) + return lldb::ValueObjectSP(); + + Error error; + ValueObjectSP node_sp = m_next_element->Dereference(error); + if (!node_sp || error.Fail()) + return lldb::ValueObjectSP(); + + ValueObjectSP value_sp = node_sp->GetChildMemberWithName(ConstString("__value_"), true); + ValueObjectSP hash_sp = node_sp->GetChildMemberWithName(ConstString("__hash_"), true); + if (!hash_sp || !value_sp) + return lldb::ValueObjectSP(); + m_elements_cache.push_back({value_sp.get(),hash_sp->GetValueAsUnsigned(0)}); + m_next_element = node_sp->GetChildMemberWithName(ConstString("__next_"),true).get(); + if (!m_next_element || m_next_element->GetValueAsUnsigned(0) == 0) + m_next_element = nullptr; + } + + std::pair<ValueObject*, uint64_t> val_hash = m_elements_cache[idx]; + if (!val_hash.first) + return lldb::ValueObjectSP(); + StreamString stream; + stream.Printf("[%" PRIu64 "]", (uint64_t)idx); + DataExtractor data; + Error error; + val_hash.first->GetData(data, error); + if (error.Fail()) + return lldb::ValueObjectSP(); + const bool thread_and_frame_only_if_stopped = true; + ExecutionContext exe_ctx = val_hash.first->GetExecutionContextRef().Lock(thread_and_frame_only_if_stopped); + return val_hash.first->CreateValueObjectFromData(stream.GetData(), + data, + exe_ctx, + val_hash.first->GetCompilerType()); +} + +bool +lldb_private::formatters::LibcxxStdUnorderedMapSyntheticFrontEnd::Update() +{ + m_num_elements = UINT32_MAX; + m_next_element = nullptr; + m_elements_cache.clear(); + m_children.clear(); + ValueObjectSP table_sp = m_backend.GetChildMemberWithName(ConstString("__table_"), true); + if (!table_sp) + return false; + ValueObjectSP num_elements_sp = table_sp->GetChildAtNamePath({ConstString("__p2_"),ConstString("__first_")}); + if (!num_elements_sp) + return false; + m_num_elements = num_elements_sp->GetValueAsUnsigned(0); + m_tree = table_sp->GetChildAtNamePath({ConstString("__p1_"),ConstString("__first_"),ConstString("__next_")}).get(); + if (m_num_elements > 0) + m_next_element = table_sp->GetChildAtNamePath({ConstString("__p1_"),ConstString("__first_"),ConstString("__next_")}).get(); + return false; +} + +bool +lldb_private::formatters::LibcxxStdUnorderedMapSyntheticFrontEnd::MightHaveChildren () +{ + return true; +} + +size_t +lldb_private::formatters::LibcxxStdUnorderedMapSyntheticFrontEnd::GetIndexOfChildWithName (const ConstString &name) +{ + return ExtractIndexFromString(name.GetCString()); +} + +lldb_private::formatters::LibcxxStdUnorderedMapSyntheticFrontEnd::~LibcxxStdUnorderedMapSyntheticFrontEnd () +{} + +SyntheticChildrenFrontEnd* +lldb_private::formatters::LibcxxStdUnorderedMapSyntheticFrontEndCreator (CXXSyntheticChildren*, lldb::ValueObjectSP valobj_sp) +{ + if (!valobj_sp) + return NULL; + return (new LibcxxStdUnorderedMapSyntheticFrontEnd(valobj_sp)); +} diff --git a/lldb/source/Plugins/Language/CPlusPlus/LibCxxVector.cpp b/lldb/source/Plugins/Language/CPlusPlus/LibCxxVector.cpp new file mode 100644 index 00000000000..6c448b34f50 --- /dev/null +++ b/lldb/source/Plugins/Language/CPlusPlus/LibCxxVector.cpp @@ -0,0 +1,156 @@ +//===-- LibCxxVector.cpp -----------------------------------------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#include "LibCxx.h" + +#include "lldb/Core/ConstString.h" +#include "lldb/Core/ValueObject.h" +#include "lldb/DataFormatters/FormattersHelpers.h" + +using namespace lldb; +using namespace lldb_private; +using namespace lldb_private::formatters; + +namespace lldb_private { + namespace formatters { + class LibcxxStdVectorSyntheticFrontEnd : public SyntheticChildrenFrontEnd + { + public: + LibcxxStdVectorSyntheticFrontEnd (lldb::ValueObjectSP valobj_sp); + + virtual size_t + CalculateNumChildren (); + + virtual lldb::ValueObjectSP + GetChildAtIndex (size_t idx); + + virtual bool + Update(); + + virtual bool + MightHaveChildren (); + + virtual size_t + GetIndexOfChildWithName (const ConstString &name); + + virtual + ~LibcxxStdVectorSyntheticFrontEnd (); + private: + ValueObject* m_start; + ValueObject* m_finish; + CompilerType m_element_type; + uint32_t m_element_size; + std::map<size_t,lldb::ValueObjectSP> m_children; + }; + } +} + +lldb_private::formatters::LibcxxStdVectorSyntheticFrontEnd::LibcxxStdVectorSyntheticFrontEnd (lldb::ValueObjectSP valobj_sp) : +SyntheticChildrenFrontEnd(*valobj_sp.get()), +m_start(NULL), +m_finish(NULL), +m_element_type(), +m_element_size(0), +m_children() +{ + if (valobj_sp) + Update(); +} + +size_t +lldb_private::formatters::LibcxxStdVectorSyntheticFrontEnd::CalculateNumChildren () +{ + if (!m_start || !m_finish) + return 0; + uint64_t start_val = m_start->GetValueAsUnsigned(0); + uint64_t finish_val = m_finish->GetValueAsUnsigned(0); + + if (start_val == 0 || finish_val == 0) + return 0; + + if (start_val >= finish_val) + return 0; + + size_t num_children = (finish_val - start_val); + if (num_children % m_element_size) + return 0; + return num_children/m_element_size; +} + +lldb::ValueObjectSP +lldb_private::formatters::LibcxxStdVectorSyntheticFrontEnd::GetChildAtIndex (size_t idx) +{ + if (!m_start || !m_finish) + return lldb::ValueObjectSP(); + + auto cached = m_children.find(idx); + if (cached != m_children.end()) + return cached->second; + + uint64_t offset = idx * m_element_size; + offset = offset + m_start->GetValueAsUnsigned(0); + StreamString name; + name.Printf("[%" PRIu64 "]", (uint64_t)idx); + ValueObjectSP child_sp = CreateValueObjectFromAddress(name.GetData(), offset, m_backend.GetExecutionContextRef(), m_element_type); + m_children[idx] = child_sp; + return child_sp; +} + +bool +lldb_private::formatters::LibcxxStdVectorSyntheticFrontEnd::Update() +{ + m_start = m_finish = NULL; + m_children.clear(); + ValueObjectSP data_type_finder_sp(m_backend.GetChildMemberWithName(ConstString("__end_cap_"),true)); + if (!data_type_finder_sp) + return false; + data_type_finder_sp = data_type_finder_sp->GetChildMemberWithName(ConstString("__first_"),true); + if (!data_type_finder_sp) + return false; + m_element_type = data_type_finder_sp->GetCompilerType().GetPointeeType(); + m_element_size = m_element_type.GetByteSize(nullptr); + + if (m_element_size > 0) + { + // store raw pointers or end up with a circular dependency + m_start = m_backend.GetChildMemberWithName(ConstString("__begin_"),true).get(); + m_finish = m_backend.GetChildMemberWithName(ConstString("__end_"),true).get(); + } + return false; +} + +bool +lldb_private::formatters::LibcxxStdVectorSyntheticFrontEnd::MightHaveChildren () +{ + return true; +} + +size_t +lldb_private::formatters::LibcxxStdVectorSyntheticFrontEnd::GetIndexOfChildWithName (const ConstString &name) +{ + if (!m_start || !m_finish) + return UINT32_MAX; + return ExtractIndexFromString(name.GetCString()); +} + +lldb_private::formatters::LibcxxStdVectorSyntheticFrontEnd::~LibcxxStdVectorSyntheticFrontEnd () +{ + // these need to stay around because they are child objects who will follow their parent's life cycle + // delete m_start; + // delete m_finish; +} + +lldb_private::SyntheticChildrenFrontEnd* +lldb_private::formatters::LibcxxStdVectorSyntheticFrontEndCreator (CXXSyntheticChildren*, lldb::ValueObjectSP valobj_sp) +{ + if (!valobj_sp) + return NULL; + return (new LibcxxStdVectorSyntheticFrontEnd(valobj_sp)); +} + diff --git a/lldb/source/Plugins/Language/CPlusPlus/LibStdcpp.cpp b/lldb/source/Plugins/Language/CPlusPlus/LibStdcpp.cpp new file mode 100644 index 00000000000..14f7527d73a --- /dev/null +++ b/lldb/source/Plugins/Language/CPlusPlus/LibStdcpp.cpp @@ -0,0 +1,258 @@ +//===-- LibStdcpp.cpp ---------------------------------------------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#include "LibStdcpp.h" + +#include "lldb/Core/DataBufferHeap.h" +#include "lldb/Core/Error.h" +#include "lldb/Core/Stream.h" +#include "lldb/Core/ValueObject.h" +#include "lldb/Core/ValueObjectConstResult.h" +#include "lldb/DataFormatters/VectorIterator.h" +#include "lldb/Host/Endian.h" +#include "lldb/Symbol/ClangASTContext.h" +#include "lldb/Target/Target.h" + +using namespace lldb; +using namespace lldb_private; +using namespace lldb_private::formatters; + +class LibstdcppMapIteratorSyntheticFrontEnd : public SyntheticChildrenFrontEnd +{ +public: + 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 (const ConstString &name) override; + + ~LibstdcppMapIteratorSyntheticFrontEnd() override; + +private: + ExecutionContextRef m_exe_ctx_ref; + lldb::addr_t m_pair_address; + CompilerType m_pair_type; + EvaluateExpressionOptions m_options; + lldb::ValueObjectSP m_pair_sp; +}; + +/* + (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 + } + } + */ + +LibstdcppMapIteratorSyntheticFrontEnd::LibstdcppMapIteratorSyntheticFrontEnd (lldb::ValueObjectSP valobj_sp) : + SyntheticChildrenFrontEnd(*valobj_sp.get()), + m_exe_ctx_ref(), + m_pair_address(0), + m_pair_type(), + m_options(), + m_pair_sp() +{ + if (valobj_sp) + Update(); + m_options.SetCoerceToId(false); + m_options.SetUnwindOnError(true); + m_options.SetKeepInMemory(true); + m_options.SetUseDynamic(lldb::eDynamicCanRunTarget); +} + +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) + { + TemplateArgumentKind kind; + CompilerType pair_type = my_type.GetTemplateArgument(0, kind); + if (kind != eTemplateArgumentKindType && kind != eTemplateArgumentKindTemplate && kind != eTemplateArgumentKindTemplateExpansion) + 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 (const ConstString &name) +{ + if (name == ConstString("first")) + return 0; + if (name == ConstString("second")) + return 1; + return UINT32_MAX; +} + +LibstdcppMapIteratorSyntheticFrontEnd::~LibstdcppMapIteratorSyntheticFrontEnd () +{} + +SyntheticChildrenFrontEnd* +lldb_private::formatters::LibstdcppMapIteratorSyntheticFrontEndCreator (CXXSyntheticChildren*, lldb::ValueObjectSP valobj_sp) +{ + if (!valobj_sp) + return NULL; + return (new LibstdcppMapIteratorSyntheticFrontEnd(valobj_sp)); +} + +/* + (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"); + if (!valobj_sp) + return NULL; + return (new VectorIteratorSyntheticFrontEnd(valobj_sp,g_item_name)); +} + +lldb_private::formatters::VectorIteratorSyntheticFrontEnd::VectorIteratorSyntheticFrontEnd (lldb::ValueObjectSP valobj_sp, + ConstString item_name) : +SyntheticChildrenFrontEnd(*valobj_sp.get()), +m_exe_ctx_ref(), +m_item_name(item_name), +m_item_sp() +{ + if (valobj_sp) + Update(); +} + +bool +lldb_private::formatters::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; + Error 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 +lldb_private::formatters::VectorIteratorSyntheticFrontEnd::CalculateNumChildren () +{ + return 1; +} + +lldb::ValueObjectSP +lldb_private::formatters::VectorIteratorSyntheticFrontEnd::GetChildAtIndex (size_t idx) +{ + if (idx == 0) + return m_item_sp; + return lldb::ValueObjectSP(); +} + +bool +lldb_private::formatters::VectorIteratorSyntheticFrontEnd::MightHaveChildren () +{ + return true; +} + +size_t +lldb_private::formatters::VectorIteratorSyntheticFrontEnd::GetIndexOfChildWithName (const ConstString &name) +{ + if (name == ConstString("item")) + return 0; + return UINT32_MAX; +} + +lldb_private::formatters::VectorIteratorSyntheticFrontEnd::~VectorIteratorSyntheticFrontEnd () +{ +} diff --git a/lldb/source/Plugins/Language/CPlusPlus/LibStdcpp.h b/lldb/source/Plugins/Language/CPlusPlus/LibStdcpp.h new file mode 100644 index 00000000000..21b2ea44fc8 --- /dev/null +++ b/lldb/source/Plugins/Language/CPlusPlus/LibStdcpp.h @@ -0,0 +1,27 @@ +//===-- LibStdCpp.h ---------------------------------------------------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#ifndef liblldb_LibStdCpp_h_ +#define liblldb_LibStdCpp_h_ + +#include "lldb/Core/Stream.h" +#include "lldb/Core/ValueObject.h" +#include "lldb/DataFormatters/TypeSummary.h" +#include "lldb/DataFormatters/TypeSynthetic.h" + +namespace lldb_private { + namespace formatters + { + SyntheticChildrenFrontEnd* LibstdcppMapIteratorSyntheticFrontEndCreator (CXXSyntheticChildren*, lldb::ValueObjectSP); + + SyntheticChildrenFrontEnd* LibStdcppVectorIteratorSyntheticFrontEndCreator (CXXSyntheticChildren*, lldb::ValueObjectSP); + } // namespace formatters +} // namespace lldb_private + +#endif // liblldb_LibStdCpp_h_ |
