diff options
Diffstat (limited to 'source/DataFormatters/CXXFormatterFunctions.cpp')
| -rw-r--r-- | source/DataFormatters/CXXFormatterFunctions.cpp | 1228 |
1 files changed, 0 insertions, 1228 deletions
diff --git a/source/DataFormatters/CXXFormatterFunctions.cpp b/source/DataFormatters/CXXFormatterFunctions.cpp deleted file mode 100644 index 49eacee42f782..0000000000000 --- a/source/DataFormatters/CXXFormatterFunctions.cpp +++ /dev/null @@ -1,1228 +0,0 @@ -//===-- CXXFormatterFunctions.cpp---------------------------------*- C++ -*-===// -// -// The LLVM Compiler Infrastructure -// -// This file is distributed under the University of Illinois Open Source -// License. See LICENSE.TXT for details. -// -//===----------------------------------------------------------------------===// - -#include "lldb/DataFormatters/CXXFormatterFunctions.h" -#include "lldb/DataFormatters/StringPrinter.h" -#include "lldb/DataFormatters/TypeSummary.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/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; - -StackFrame* -lldb_private::formatters::GetViableFrame (ExecutionContext exe_ctx) -{ - StackFrame* frame = exe_ctx.GetFramePtr(); - if (frame) - return frame; - - Process* process = exe_ctx.GetProcessPtr(); - if (!process) - return nullptr; - - ThreadSP thread_sp(process->GetThreadList().GetSelectedThread()); - if (thread_sp) - return thread_sp->GetSelectedFrame().get(); - return nullptr; -} - -bool -lldb_private::formatters::ExtractValueFromObjCExpression (ValueObject &valobj, - const char* target_type, - const char* selector, - uint64_t &value) -{ - if (!target_type || !*target_type) - return false; - if (!selector || !*selector) - return false; - StreamString expr; - expr.Printf("(%s)[(id)0x%" PRIx64 " %s]",target_type,valobj.GetPointerValue(),selector); - ExecutionContext exe_ctx (valobj.GetExecutionContextRef()); - lldb::ValueObjectSP result_sp; - Target* target = exe_ctx.GetTargetPtr(); - StackFrame* stack_frame = GetViableFrame(exe_ctx); - if (!target || !stack_frame) - return false; - - EvaluateExpressionOptions options; - options.SetCoerceToId(false); - options.SetUnwindOnError(true); - options.SetKeepInMemory(true); - - target->EvaluateExpression(expr.GetData(), - stack_frame, - result_sp, - options); - if (!result_sp) - return false; - value = result_sp->GetValueAsUnsigned(0); - return true; -} - -bool -lldb_private::formatters::ExtractSummaryFromObjCExpression (ValueObject &valobj, - const char* target_type, - const char* selector, - Stream &stream) -{ - if (!target_type || !*target_type) - return false; - if (!selector || !*selector) - return false; - StreamString expr; - expr.Printf("(%s)[(id)0x%" PRIx64 " %s]",target_type,valobj.GetPointerValue(),selector); - ExecutionContext exe_ctx (valobj.GetExecutionContextRef()); - lldb::ValueObjectSP result_sp; - Target* target = exe_ctx.GetTargetPtr(); - StackFrame* stack_frame = GetViableFrame(exe_ctx); - if (!target || !stack_frame) - return false; - - EvaluateExpressionOptions options; - options.SetCoerceToId(false); - options.SetUnwindOnError(true); - options.SetKeepInMemory(true); - options.SetUseDynamic(lldb::eDynamicCanRunTarget); - - target->EvaluateExpression(expr.GetData(), - stack_frame, - result_sp, - options); - if (!result_sp) - return false; - stream.Printf("%s",result_sp->GetSummaryAsCString()); - return true; -} - -lldb::ValueObjectSP -lldb_private::formatters::CallSelectorOnObject (ValueObject &valobj, - const char* return_type, - const char* selector, - uint64_t index) -{ - lldb::ValueObjectSP valobj_sp; - if (!return_type || !*return_type) - return valobj_sp; - if (!selector || !*selector) - return valobj_sp; - StreamString expr_path_stream; - valobj.GetExpressionPath(expr_path_stream, false); - StreamString expr; - expr.Printf("(%s)[%s %s:%" PRId64 "]",return_type,expr_path_stream.GetData(),selector,index); - ExecutionContext exe_ctx (valobj.GetExecutionContextRef()); - lldb::ValueObjectSP result_sp; - Target* target = exe_ctx.GetTargetPtr(); - StackFrame* stack_frame = GetViableFrame(exe_ctx); - if (!target || !stack_frame) - return valobj_sp; - - EvaluateExpressionOptions options; - options.SetCoerceToId(false); - options.SetUnwindOnError(true); - options.SetKeepInMemory(true); - options.SetUseDynamic(lldb::eDynamicCanRunTarget); - - target->EvaluateExpression(expr.GetData(), - stack_frame, - valobj_sp, - options); - return valobj_sp; -} - -lldb::ValueObjectSP -lldb_private::formatters::CallSelectorOnObject (ValueObject &valobj, - const char* return_type, - const char* selector, - const char* key) -{ - lldb::ValueObjectSP valobj_sp; - if (!return_type || !*return_type) - return valobj_sp; - if (!selector || !*selector) - return valobj_sp; - if (!key || !*key) - return valobj_sp; - StreamString expr_path_stream; - valobj.GetExpressionPath(expr_path_stream, false); - StreamString expr; - expr.Printf("(%s)[%s %s:%s]",return_type,expr_path_stream.GetData(),selector,key); - ExecutionContext exe_ctx (valobj.GetExecutionContextRef()); - lldb::ValueObjectSP result_sp; - Target* target = exe_ctx.GetTargetPtr(); - StackFrame* stack_frame = GetViableFrame(exe_ctx); - if (!target || !stack_frame) - return valobj_sp; - - EvaluateExpressionOptions options; - options.SetCoerceToId(false); - options.SetUnwindOnError(true); - options.SetKeepInMemory(true); - options.SetUseDynamic(lldb::eDynamicCanRunTarget); - - target->EvaluateExpression(expr.GetData(), - stack_frame, - valobj_sp, - options); - return valobj_sp; -} - -bool -lldb_private::formatters::FunctionPointerSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& options) -{ - std::string destination; - StreamString sstr; - AddressType func_ptr_address_type = eAddressTypeInvalid; - addr_t func_ptr_address = valobj.GetPointerValue (&func_ptr_address_type); - if (func_ptr_address != 0 && func_ptr_address != LLDB_INVALID_ADDRESS) - { - switch (func_ptr_address_type) - { - case eAddressTypeInvalid: - case eAddressTypeFile: - case eAddressTypeHost: - break; - - case eAddressTypeLoad: - { - ExecutionContext exe_ctx (valobj.GetExecutionContextRef()); - - Address so_addr; - Target *target = exe_ctx.GetTargetPtr(); - if (target && target->GetSectionLoadList().IsEmpty() == false) - { - if (target->GetSectionLoadList().ResolveLoadAddress(func_ptr_address, so_addr)) - { - so_addr.Dump (&sstr, - exe_ctx.GetBestExecutionContextScope(), - Address::DumpStyleResolvedDescription, - Address::DumpStyleSectionNameOffset); - } - } - } - break; - } - } - if (sstr.GetSize() > 0) - { - stream.Printf("(%s)", sstr.GetData()); - return true; - } - else - return false; -} - -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; - - clang::ASTContext* ast = valobj.GetClangType().GetASTContext(); - - if (!ast) - return false; - - ClangASTType wchar_clang_type = ClangASTContext::GetBasicType(ast, lldb::eBasicTypeWChar); - 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); - - 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); - - 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); - - return ReadBufferAndDumpToStream<StringElementType::UTF16>(options); -} - -// 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& 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; - return WCharStringSummaryProvider(*location_sp.get(), stream, options); -} - -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); // none of this matters for a string - pass some defaults - options.SetStream(&stream); - options.SetPrefixToken(0); - options.SetQuote('"'); - options.SetSourceSize(size); - lldb_private::formatters::ReadBufferAndDumpToStream<lldb_private::formatters::StringElementType::ASCII>(options); - - return true; -} - -bool -lldb_private::formatters::ObjCClassSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& options) -{ - ProcessSP process_sp = valobj.GetProcessSP(); - if (!process_sp) - return false; - - ObjCLanguageRuntime* runtime = (ObjCLanguageRuntime*)process_sp->GetLanguageRuntime(lldb::eLanguageTypeObjC); - - if (!runtime) - return false; - - ObjCLanguageRuntime::ClassDescriptorSP descriptor(runtime->GetClassDescriptorFromISA(valobj.GetValueAsUnsigned(0))); - - if (!descriptor.get() || !descriptor->IsValid()) - return false; - - const char* class_name = descriptor->GetClassName().GetCString(); - - if (!class_name || !*class_name) - return false; - - stream.Printf("%s",class_name); - return true; -} - -class ObjCClassSyntheticChildrenFrontEnd : public SyntheticChildrenFrontEnd -{ -public: - ObjCClassSyntheticChildrenFrontEnd (lldb::ValueObjectSP valobj_sp) : - SyntheticChildrenFrontEnd(*valobj_sp.get()) - { - } - - virtual size_t - CalculateNumChildren () - { - return 0; - } - - virtual lldb::ValueObjectSP - GetChildAtIndex (size_t idx) - { - return lldb::ValueObjectSP(); - } - - virtual bool - Update() - { - return false; - } - - virtual bool - MightHaveChildren () - { - return false; - } - - virtual size_t - GetIndexOfChildWithName (const ConstString &name) - { - return UINT32_MAX; - } - - virtual - ~ObjCClassSyntheticChildrenFrontEnd () - { - } -}; - -SyntheticChildrenFrontEnd* -lldb_private::formatters::ObjCClassSyntheticFrontEndCreator (CXXSyntheticChildren*, lldb::ValueObjectSP valobj_sp) -{ - return new ObjCClassSyntheticChildrenFrontEnd(valobj_sp); -} - -template<bool needs_at> -bool -lldb_private::formatters::NSDataSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& options) -{ - ProcessSP process_sp = valobj.GetProcessSP(); - if (!process_sp) - return false; - - ObjCLanguageRuntime* runtime = (ObjCLanguageRuntime*)process_sp->GetLanguageRuntime(lldb::eLanguageTypeObjC); - - if (!runtime) - return false; - - ObjCLanguageRuntime::ClassDescriptorSP descriptor(runtime->GetClassDescriptor(valobj)); - - if (!descriptor.get() || !descriptor->IsValid()) - return false; - - bool is_64bit = (process_sp->GetAddressByteSize() == 8); - lldb::addr_t valobj_addr = valobj.GetValueAsUnsigned(0); - - if (!valobj_addr) - return false; - - uint64_t value = 0; - - const char* class_name = descriptor->GetClassName().GetCString(); - - if (!class_name || !*class_name) - return false; - - if (!strcmp(class_name,"NSConcreteData") || - !strcmp(class_name,"NSConcreteMutableData") || - !strcmp(class_name,"__NSCFData")) - { - uint32_t offset = (is_64bit ? 16 : 8); - Error error; - value = process_sp->ReadUnsignedIntegerFromMemory(valobj_addr + offset, is_64bit ? 8 : 4, 0, error); - if (error.Fail()) - return false; - } - else - { - if (!ExtractValueFromObjCExpression(valobj, "int", "length", value)) - return false; - } - - stream.Printf("%s%" PRIu64 " byte%s%s", - (needs_at ? "@\"" : ""), - value, - (value != 1 ? "s" : ""), - (needs_at ? "\"" : "")); - - return true; -} - -static bool -ReadAsciiBufferAndDumpToStream (lldb::addr_t location, - lldb::ProcessSP& process_sp, - Stream& dest, - uint32_t size = 0, - Error* error = NULL, - size_t *data_read = NULL, - char prefix_token = '@', - char quote = '"') -{ - Error my_error; - size_t my_data_read; - if (!process_sp || location == 0) - return false; - - if (!size) - size = process_sp->GetTarget().GetMaximumSizeOfStringSummary(); - else - size = std::min(size,process_sp->GetTarget().GetMaximumSizeOfStringSummary()); - - lldb::DataBufferSP buffer_sp(new DataBufferHeap(size,0)); - - my_data_read = process_sp->ReadCStringFromMemory(location, (char*)buffer_sp->GetBytes(), size, my_error); - - if (error) - *error = my_error; - if (data_read) - *data_read = my_data_read; - - if (my_error.Fail()) - return false; - - dest.Printf("%c%c",prefix_token,quote); - - if (my_data_read) - dest.Printf("%s",(char*)buffer_sp->GetBytes()); - - dest.Printf("%c",quote); - - return true; -} - -bool -lldb_private::formatters::NSTaggedString_SummaryProvider (ObjCLanguageRuntime::ClassDescriptorSP descriptor, Stream& stream) -{ - if (!descriptor) - return false; - uint64_t len_bits = 0, data_bits = 0; - if (!descriptor->GetTaggedPointerInfo(&len_bits,&data_bits,nullptr)) - return false; - - static const int g_MaxNonBitmaskedLen = 7; //TAGGED_STRING_UNPACKED_MAXLEN - static const int g_SixbitMaxLen = 9; - static const int g_fiveBitMaxLen = 11; - - static const char *sixBitToCharLookup = "eilotrm.apdnsIc ufkMShjTRxgC4013" "bDNvwyUL2O856P-B79AFKEWV_zGJ/HYX"; - - if (len_bits > g_fiveBitMaxLen) - return false; - - // this is a fairly ugly trick - pretend that the numeric value is actually a char* - // this works under a few assumptions: - // little endian architecture - // sizeof(uint64_t) > g_MaxNonBitmaskedLen - if (len_bits <= g_MaxNonBitmaskedLen) - { - stream.Printf("@\"%s\"",(const char*)&data_bits); - return true; - } - - // if the data is bitmasked, we need to actually process the bytes - uint8_t bitmask = 0; - uint8_t shift_offset = 0; - - if (len_bits <= g_SixbitMaxLen) - { - bitmask = 0x03f; - shift_offset = 6; - } - else - { - bitmask = 0x01f; - shift_offset = 5; - } - - std::vector<uint8_t> bytes; - bytes.resize(len_bits); - for (; len_bits > 0; data_bits >>= shift_offset, --len_bits) - { - uint8_t packed = data_bits & bitmask; - bytes.insert(bytes.begin(), sixBitToCharLookup[packed]); - } - - stream.Printf("@\"%s\"",&bytes[0]); - return true; -} - -static ClangASTType -GetNSPathStore2Type (Target &target) -{ - static ConstString g_type_name("__lldb_autogen_nspathstore2"); - - ClangASTContext *ast_ctx = target.GetScratchClangASTContext(); - - if (!ast_ctx) - return ClangASTType(); - - ClangASTType voidstar = ast_ctx->GetBasicType(lldb::eBasicTypeVoid).GetPointerType(); - ClangASTType uint32 = ast_ctx->GetIntTypeFromBitSize(32, false); - - return ast_ctx->GetOrCreateStructForIdentifier(g_type_name, { - {"isa",voidstar}, - {"lengthAndRef",uint32}, - {"buffer",voidstar} - }); -} - -bool -lldb_private::formatters::NSStringSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& summary_options) -{ - ProcessSP process_sp = valobj.GetProcessSP(); - if (!process_sp) - return false; - - ObjCLanguageRuntime* runtime = (ObjCLanguageRuntime*)process_sp->GetLanguageRuntime(lldb::eLanguageTypeObjC); - - if (!runtime) - return false; - - ObjCLanguageRuntime::ClassDescriptorSP descriptor(runtime->GetClassDescriptor(valobj)); - - if (!descriptor.get() || !descriptor->IsValid()) - return false; - - uint32_t ptr_size = process_sp->GetAddressByteSize(); - - lldb::addr_t valobj_addr = valobj.GetValueAsUnsigned(0); - - if (!valobj_addr) - return false; - - const char* class_name = descriptor->GetClassName().GetCString(); - - if (!class_name || !*class_name) - return false; - - bool is_tagged_ptr = (0 == strcmp(class_name,"NSTaggedPointerString")) && descriptor->GetTaggedPointerInfo(); - // for a tagged pointer, the descriptor has everything we need - if (is_tagged_ptr) - return NSTaggedString_SummaryProvider(descriptor, stream); - - // if not a tagged pointer that we know about, try the normal route - uint64_t info_bits_location = valobj_addr + ptr_size; - if (process_sp->GetByteOrder() != lldb::eByteOrderLittle) - info_bits_location += 3; - - Error error; - - uint8_t info_bits = process_sp->ReadUnsignedIntegerFromMemory(info_bits_location, 1, 0, error); - if (error.Fail()) - return false; - - bool is_mutable = (info_bits & 1) == 1; - bool is_inline = (info_bits & 0x60) == 0; - bool has_explicit_length = (info_bits & (1 | 4)) != 4; - bool is_unicode = (info_bits & 0x10) == 0x10; - bool is_special = strcmp(class_name,"NSPathStore2") == 0; - bool has_null = (info_bits & 8) == 8; - - size_t explicit_length = 0; - if (!has_null && has_explicit_length && !is_special) - { - lldb::addr_t explicit_length_offset = 2*ptr_size; - if (is_mutable && !is_inline) - explicit_length_offset = explicit_length_offset + ptr_size; // notInlineMutable.length; - else if (is_inline) - explicit_length = explicit_length + 0; // inline1.length; - else if (!is_inline && !is_mutable) - explicit_length_offset = explicit_length_offset + ptr_size; // notInlineImmutable1.length; - else - explicit_length_offset = 0; - - if (explicit_length_offset) - { - explicit_length_offset = valobj_addr + explicit_length_offset; - explicit_length = process_sp->ReadUnsignedIntegerFromMemory(explicit_length_offset, 4, 0, error); - } - } - - if (strcmp(class_name,"NSString") && - strcmp(class_name,"CFStringRef") && - strcmp(class_name,"CFMutableStringRef") && - strcmp(class_name,"__NSCFConstantString") && - strcmp(class_name,"__NSCFString") && - strcmp(class_name,"NSCFConstantString") && - strcmp(class_name,"NSCFString") && - strcmp(class_name,"NSPathStore2")) - { - // not one of us - but tell me class name - stream.Printf("class name = %s",class_name); - return true; - } - - if (is_mutable) - { - uint64_t location = 2 * ptr_size + valobj_addr; - location = process_sp->ReadPointerFromMemory(location, error); - if (error.Fail()) - return false; - if (has_explicit_length && is_unicode) - { - ReadStringAndDumpToStreamOptions options(valobj); - options.SetLocation(location); - options.SetProcessSP(process_sp); - options.SetStream(&stream); - options.SetPrefixToken('@'); - options.SetQuote('"'); - options.SetSourceSize(explicit_length); - options.SetNeedsZeroTermination(false); - options.SetIgnoreMaxLength(summary_options.GetCapping() == TypeSummaryCapping::eTypeSummaryUncapped); - return ReadStringAndDumpToStream<StringElementType::UTF16>(options); - } - else - { - ReadStringAndDumpToStreamOptions options(valobj); - options.SetLocation(location+1); - options.SetProcessSP(process_sp); - options.SetStream(&stream); - options.SetPrefixToken('@'); - options.SetSourceSize(explicit_length); - options.SetNeedsZeroTermination(false); - options.SetIgnoreMaxLength(summary_options.GetCapping() == TypeSummaryCapping::eTypeSummaryUncapped); - return ReadStringAndDumpToStream<StringElementType::ASCII>(options); - } - } - else if (is_inline && has_explicit_length && !is_unicode && !is_special && !is_mutable) - { - uint64_t location = 3 * ptr_size + valobj_addr; - return ReadAsciiBufferAndDumpToStream(location,process_sp,stream,explicit_length); - } - else if (is_unicode) - { - uint64_t location = valobj_addr + 2*ptr_size; - if (is_inline) - { - if (!has_explicit_length) - { - stream.Printf("found new combo"); - return true; - } - else - location += ptr_size; - } - else - { - location = process_sp->ReadPointerFromMemory(location, error); - if (error.Fail()) - return false; - } - ReadStringAndDumpToStreamOptions options(valobj); - options.SetLocation(location); - options.SetProcessSP(process_sp); - options.SetStream(&stream); - options.SetPrefixToken('@'); - options.SetQuote('"'); - options.SetSourceSize(explicit_length); - options.SetNeedsZeroTermination(has_explicit_length == false); - options.SetIgnoreMaxLength(summary_options.GetCapping() == TypeSummaryCapping::eTypeSummaryUncapped); - return ReadStringAndDumpToStream<StringElementType::UTF16> (options); - } - else if (is_special) - { - ProcessStructReader reader(valobj.GetProcessSP().get(), valobj.GetValueAsUnsigned(0), GetNSPathStore2Type(*valobj.GetTargetSP())); - explicit_length = reader.GetField<uint32_t>(ConstString("lengthAndRef")) >> 20; - lldb::addr_t location = valobj.GetValueAsUnsigned(0) + ptr_size + 4; - - ReadStringAndDumpToStreamOptions options(valobj); - options.SetLocation(location); - options.SetProcessSP(process_sp); - options.SetStream(&stream); - options.SetPrefixToken('@'); - options.SetQuote('"'); - options.SetSourceSize(explicit_length); - options.SetNeedsZeroTermination(has_explicit_length == false); - options.SetIgnoreMaxLength(summary_options.GetCapping() == TypeSummaryCapping::eTypeSummaryUncapped); - return ReadStringAndDumpToStream<StringElementType::UTF16> (options); - } - else if (is_inline) - { - uint64_t location = valobj_addr + 2*ptr_size; - if (!has_explicit_length) - location++; - ReadStringAndDumpToStreamOptions options(valobj); - options.SetLocation(location); - options.SetProcessSP(process_sp); - options.SetStream(&stream); - options.SetPrefixToken('@'); - options.SetSourceSize(explicit_length); - options.SetIgnoreMaxLength(summary_options.GetCapping() == TypeSummaryCapping::eTypeSummaryUncapped); - return ReadStringAndDumpToStream<StringElementType::ASCII>(options); - } - else - { - uint64_t location = valobj_addr + 2*ptr_size; - location = process_sp->ReadPointerFromMemory(location, error); - if (error.Fail()) - return false; - if (has_explicit_length && !has_null) - explicit_length++; // account for the fact that there is no NULL and we need to have one added - ReadStringAndDumpToStreamOptions options(valobj); - options.SetLocation(location); - options.SetProcessSP(process_sp); - options.SetPrefixToken('@'); - options.SetStream(&stream); - options.SetSourceSize(explicit_length); - options.SetIgnoreMaxLength(summary_options.GetCapping() == TypeSummaryCapping::eTypeSummaryUncapped); - return ReadStringAndDumpToStream<StringElementType::ASCII>(options); - } -} - -bool -lldb_private::formatters::NSAttributedStringSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& options) -{ - TargetSP target_sp(valobj.GetTargetSP()); - if (!target_sp) - return false; - uint32_t addr_size = target_sp->GetArchitecture().GetAddressByteSize(); - uint64_t pointer_value = valobj.GetValueAsUnsigned(0); - if (!pointer_value) - return false; - pointer_value += addr_size; - ClangASTType type(valobj.GetClangType()); - ExecutionContext exe_ctx(target_sp,false); - ValueObjectSP child_ptr_sp(valobj.CreateValueObjectFromAddress("string_ptr", pointer_value, exe_ctx, type)); - if (!child_ptr_sp) - return false; - DataExtractor data; - Error error; - child_ptr_sp->GetData(data, error); - if (error.Fail()) - return false; - ValueObjectSP child_sp(child_ptr_sp->CreateValueObjectFromData("string_data", data, exe_ctx, type)); - child_sp->GetValueAsUnsigned(0); - if (child_sp) - return NSStringSummaryProvider(*child_sp, stream, options); - return false; -} - -bool -lldb_private::formatters::NSMutableAttributedStringSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& options) -{ - return NSAttributedStringSummaryProvider(valobj, stream, options); -} - -bool -lldb_private::formatters::RuntimeSpecificDescriptionSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& options) -{ - stream.Printf("%s",valobj.GetObjectDescription()); - return true; -} - -bool -lldb_private::formatters::ObjCBOOLSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& options) -{ - const uint32_t type_info = valobj.GetClangType().GetTypeInfo(); - - ValueObjectSP real_guy_sp = valobj.GetSP(); - - if (type_info & eTypeIsPointer) - { - Error err; - real_guy_sp = valobj.Dereference(err); - if (err.Fail() || !real_guy_sp) - return false; - } - else if (type_info & eTypeIsReference) - { - real_guy_sp = valobj.GetChildAtIndex(0, true); - if (!real_guy_sp) - return false; - } - uint64_t value = real_guy_sp->GetValueAsUnsigned(0); - if (value == 0) - { - stream.Printf("NO"); - return true; - } - stream.Printf("YES"); - return true; -} - -template <bool is_sel_ptr> -bool -lldb_private::formatters::ObjCSELSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& options) -{ - lldb::ValueObjectSP valobj_sp; - - ClangASTType charstar (valobj.GetClangType().GetBasicTypeFromAST(eBasicTypeChar).GetPointerType()); - - if (!charstar) - return false; - - ExecutionContext exe_ctx(valobj.GetExecutionContextRef()); - - if (is_sel_ptr) - { - lldb::addr_t data_address = valobj.GetValueAsUnsigned(LLDB_INVALID_ADDRESS); - if (data_address == LLDB_INVALID_ADDRESS) - return false; - valobj_sp = ValueObject::CreateValueObjectFromAddress("text", data_address, exe_ctx, charstar); - } - else - { - DataExtractor data; - Error error; - valobj.GetData(data, error); - if (error.Fail()) - return false; - valobj_sp = ValueObject::CreateValueObjectFromData("text", data, exe_ctx, charstar); - } - - if (!valobj_sp) - return false; - - stream.Printf("%s",valobj_sp->GetSummaryAsCString()); - return true; -} - -// POSIX has an epoch on Jan-1-1970, but Cocoa prefers Jan-1-2001 -// this call gives the POSIX equivalent of the Cocoa epoch -time_t -lldb_private::formatters::GetOSXEpoch () -{ - static time_t epoch = 0; - if (!epoch) - { -#ifndef _WIN32 - tzset(); - tm tm_epoch; - tm_epoch.tm_sec = 0; - tm_epoch.tm_hour = 0; - tm_epoch.tm_min = 0; - tm_epoch.tm_mon = 0; - tm_epoch.tm_mday = 1; - tm_epoch.tm_year = 2001-1900; // for some reason, we need to subtract 1900 from this field. not sure why. - tm_epoch.tm_isdst = -1; - tm_epoch.tm_gmtoff = 0; - tm_epoch.tm_zone = NULL; - epoch = timegm(&tm_epoch); -#endif - } - return epoch; -} - -size_t -lldb_private::formatters::ExtractIndexFromString (const char* item_name) -{ - if (!item_name || !*item_name) - return UINT32_MAX; - if (*item_name != '[') - return UINT32_MAX; - item_name++; - char* endptr = NULL; - unsigned long int idx = ::strtoul(item_name, &endptr, 0); - if (idx == 0 && endptr == item_name) - return UINT32_MAX; - if (idx == ULONG_MAX) - return UINT32_MAX; - return idx; -} - -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->GetClangType().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 () -{ -} - -template bool -lldb_private::formatters::NSDataSummaryProvider<true> (ValueObject&, Stream&, const TypeSummaryOptions&) ; - -template bool -lldb_private::formatters::NSDataSummaryProvider<false> (ValueObject&, Stream&, const TypeSummaryOptions&) ; - -template bool -lldb_private::formatters::ObjCSELSummaryProvider<true> (ValueObject&, Stream&, const TypeSummaryOptions&) ; - -template bool -lldb_private::formatters::ObjCSELSummaryProvider<false> (ValueObject&, Stream&, const TypeSummaryOptions&) ; |