diff options
Diffstat (limited to 'contrib/llvm/tools/lldb/source/Plugins/Language/ObjC/Cocoa.cpp')
| -rw-r--r-- | contrib/llvm/tools/lldb/source/Plugins/Language/ObjC/Cocoa.cpp | 967 |
1 files changed, 967 insertions, 0 deletions
diff --git a/contrib/llvm/tools/lldb/source/Plugins/Language/ObjC/Cocoa.cpp b/contrib/llvm/tools/lldb/source/Plugins/Language/ObjC/Cocoa.cpp new file mode 100644 index 0000000..aa6e476 --- /dev/null +++ b/contrib/llvm/tools/lldb/source/Plugins/Language/ObjC/Cocoa.cpp @@ -0,0 +1,967 @@ +//===-- Cocoa.cpp -----------------------------------------------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +// C Includes +// C++ Includes +// Other libraries and framework includes +// Project includes +#include "Cocoa.h" + +#include "lldb/Core/DataBufferHeap.h" +#include "lldb/Core/Error.h" +#include "lldb/Core/Mangled.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/Host/Endian.h" +#include "lldb/Symbol/ClangASTContext.h" +#include "lldb/Target/Language.h" +#include "lldb/Target/ObjCLanguageRuntime.h" +#include "lldb/Target/Target.h" +#include "lldb/Target/Process.h" +#include "lldb/Utility/ProcessStructReader.h" + +#include "NSString.h" + +using namespace lldb; +using namespace lldb_private; +using namespace lldb_private::formatters; + +bool +lldb_private::formatters::NSBundleSummaryProvider (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; + + 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; + + if (!strcmp(class_name,"NSBundle")) + { + uint64_t offset = 5 * ptr_size; + ValueObjectSP text(valobj.GetSyntheticChildAtOffset(offset, valobj.GetCompilerType().GetBasicTypeFromAST(lldb::eBasicTypeObjCID), true)); + + StreamString summary_stream; + bool was_nsstring_ok = NSStringSummaryProvider(*text.get(), summary_stream, options); + if (was_nsstring_ok && summary_stream.GetSize() > 0) + { + stream.Printf("%s",summary_stream.GetData()); + return true; + } + } + // this is either an unknown subclass or an NSBundle that comes from [NSBundle mainBundle] + // which is encoded differently and needs to be handled by running code + return ExtractSummaryFromObjCExpression(valobj, "NSString*", "bundlePath", stream, options.GetLanguage()); +} + +bool +lldb_private::formatters::NSTimeZoneSummaryProvider (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; + + 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; + + if (!strcmp(class_name,"__NSTimeZone")) + { + uint64_t offset = ptr_size; + ValueObjectSP text(valobj.GetSyntheticChildAtOffset(offset, valobj.GetCompilerType(), true)); + StreamString summary_stream; + bool was_nsstring_ok = NSStringSummaryProvider(*text.get(), summary_stream, options); + if (was_nsstring_ok && summary_stream.GetSize() > 0) + { + stream.Printf("%s",summary_stream.GetData()); + return true; + } + } + return ExtractSummaryFromObjCExpression(valobj, "NSString*", "name", stream, options.GetLanguage()); +} + +bool +lldb_private::formatters::NSNotificationSummaryProvider (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; + + 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; + + if (!strcmp(class_name,"NSConcreteNotification")) + { + uint64_t offset = ptr_size; + ValueObjectSP text(valobj.GetSyntheticChildAtOffset(offset, valobj.GetCompilerType(), true)); + StreamString summary_stream; + bool was_nsstring_ok = NSStringSummaryProvider(*text.get(), summary_stream, options); + if (was_nsstring_ok && summary_stream.GetSize() > 0) + { + stream.Printf("%s",summary_stream.GetData()); + return true; + } + } + // this is either an unknown subclass or an NSBundle that comes from [NSBundle mainBundle] + // which is encoded differently and needs to be handled by running code + return ExtractSummaryFromObjCExpression(valobj, "NSString*", "name", stream, options.GetLanguage()); +} + +bool +lldb_private::formatters::NSMachPortSummaryProvider (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; + + 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; + + uint64_t port_number = 0; + + do + { + if (!strcmp(class_name,"NSMachPort")) + { + uint64_t offset = (ptr_size == 4 ? 12 : 20); + Error error; + port_number = process_sp->ReadUnsignedIntegerFromMemory(offset+valobj_addr, 4, 0, error); + if (error.Success()) + break; + } + if (!ExtractValueFromObjCExpression(valobj, "int", "machPort", port_number)) + return false; + } while (false); + + stream.Printf("mach port: %u",(uint32_t)(port_number & 0x00000000FFFFFFFF)); + return true; +} + +bool +lldb_private::formatters::NSIndexSetSummaryProvider (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; + + 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; + + uint64_t count = 0; + + do { + if (!strcmp(class_name,"NSIndexSet") || !strcmp(class_name,"NSMutableIndexSet")) + { + Error error; + uint32_t mode = process_sp->ReadUnsignedIntegerFromMemory(valobj_addr+ptr_size, 4, 0, error); + if (error.Fail()) + return false; + // this means the set is empty - count = 0 + if ((mode & 1) == 1) + { + count = 0; + break; + } + if ((mode & 2) == 2) + mode = 1; // this means the set only has one range + else + mode = 2; // this means the set has multiple ranges + if (mode == 1) + { + count = process_sp->ReadUnsignedIntegerFromMemory(valobj_addr+3*ptr_size, ptr_size, 0, error); + if (error.Fail()) + return false; + } + else + { + // read a pointer to the data at 2*ptr_size + count = process_sp->ReadUnsignedIntegerFromMemory(valobj_addr+2*ptr_size, ptr_size, 0, error); + if (error.Fail()) + return false; + // read the data at 2*ptr_size from the first location + count = process_sp->ReadUnsignedIntegerFromMemory(count+2*ptr_size, ptr_size, 0, error); + if (error.Fail()) + return false; + } + } + else + { + if (!ExtractValueFromObjCExpression(valobj, "unsigned long long int", "count", count)) + return false; + } + } while (false); + stream.Printf("%" PRIu64 " index%s", + count, + (count == 1 ? "" : "es")); + return true; +} + +static void +NSNumber_FormatChar (ValueObject& valobj, + Stream& stream, + char value, + lldb::LanguageType lang) +{ + static ConstString g_TypeHint("NSNumber:char"); + + std::string prefix,suffix; + if (Language* language = Language::FindPlugin(lang)) + { + if (!language->GetFormatterPrefixSuffix(valobj, g_TypeHint, prefix, suffix)) + { + prefix.clear(); + suffix.clear(); + } + } + + stream.Printf("%s%hhd%s", + prefix.c_str(), + value, + suffix.c_str()); +} + +static void +NSNumber_FormatShort (ValueObject& valobj, + Stream& stream, + short value, + lldb::LanguageType lang) +{ + static ConstString g_TypeHint("NSNumber:short"); + + std::string prefix,suffix; + if (Language* language = Language::FindPlugin(lang)) + { + if (!language->GetFormatterPrefixSuffix(valobj, g_TypeHint, prefix, suffix)) + { + prefix.clear(); + suffix.clear(); + } + } + + stream.Printf("%s%hd%s", + prefix.c_str(), + value, + suffix.c_str()); +} + +static void +NSNumber_FormatInt (ValueObject& valobj, + Stream& stream, + int value, + lldb::LanguageType lang) +{ + static ConstString g_TypeHint("NSNumber:int"); + + std::string prefix,suffix; + if (Language* language = Language::FindPlugin(lang)) + { + if (!language->GetFormatterPrefixSuffix(valobj, g_TypeHint, prefix, suffix)) + { + prefix.clear(); + suffix.clear(); + } + } + + stream.Printf("%s%d%s", + prefix.c_str(), + value, + suffix.c_str()); +} + +static void +NSNumber_FormatLong (ValueObject& valobj, + Stream& stream, + uint64_t value, + lldb::LanguageType lang) +{ + static ConstString g_TypeHint("NSNumber:long"); + + std::string prefix,suffix; + if (Language* language = Language::FindPlugin(lang)) + { + if (!language->GetFormatterPrefixSuffix(valobj, g_TypeHint, prefix, suffix)) + { + prefix.clear(); + suffix.clear(); + } + } + + stream.Printf("%s%" PRId64 "%s", + prefix.c_str(), + value, + suffix.c_str()); +} + +static void +NSNumber_FormatFloat (ValueObject& valobj, + Stream& stream, + float value, + lldb::LanguageType lang) +{ + static ConstString g_TypeHint("NSNumber:float"); + + std::string prefix,suffix; + if (Language* language = Language::FindPlugin(lang)) + { + if (!language->GetFormatterPrefixSuffix(valobj, g_TypeHint, prefix, suffix)) + { + prefix.clear(); + suffix.clear(); + } + } + + stream.Printf("%s%f%s", + prefix.c_str(), + value, + suffix.c_str()); +} + +static void +NSNumber_FormatDouble (ValueObject& valobj, + Stream& stream, + double value, + lldb::LanguageType lang) +{ + static ConstString g_TypeHint("NSNumber:double"); + + std::string prefix,suffix; + if (Language* language = Language::FindPlugin(lang)) + { + if (!language->GetFormatterPrefixSuffix(valobj, g_TypeHint, prefix, suffix)) + { + prefix.clear(); + suffix.clear(); + } + } + + stream.Printf("%s%g%s", + prefix.c_str(), + value, + suffix.c_str()); +} + +bool +lldb_private::formatters::NSNumberSummaryProvider (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; + + 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; + + if (!strcmp(class_name,"NSNumber") || !strcmp(class_name,"__NSCFNumber")) + { + uint64_t value = 0; + uint64_t i_bits = 0; + if (descriptor->GetTaggedPointerInfo(&i_bits,&value)) + { + switch (i_bits) + { + case 0: + NSNumber_FormatChar(valobj, stream, (char)value, options.GetLanguage()); + break; + case 1: + case 4: + NSNumber_FormatShort(valobj, stream, (short)value, options.GetLanguage()); + break; + case 2: + case 8: + NSNumber_FormatInt(valobj, stream, (int)value, options.GetLanguage()); + break; + case 3: + case 12: + NSNumber_FormatLong(valobj, stream, value, options.GetLanguage()); + break; + default: + return false; + } + return true; + } + else + { + Error error; + uint8_t data_type = (process_sp->ReadUnsignedIntegerFromMemory(valobj_addr + ptr_size, 1, 0, error) & 0x1F); + uint64_t data_location = valobj_addr + 2*ptr_size; + uint64_t value = 0; + if (error.Fail()) + return false; + switch (data_type) + { + case 1: // 0B00001 + value = process_sp->ReadUnsignedIntegerFromMemory(data_location, 1, 0, error); + if (error.Fail()) + return false; + NSNumber_FormatChar(valobj, stream, (char)value, options.GetLanguage()); + break; + case 2: // 0B0010 + value = process_sp->ReadUnsignedIntegerFromMemory(data_location, 2, 0, error); + if (error.Fail()) + return false; + NSNumber_FormatShort(valobj, stream, (short)value, options.GetLanguage()); + break; + case 3: // 0B0011 + value = process_sp->ReadUnsignedIntegerFromMemory(data_location, 4, 0, error); + if (error.Fail()) + return false; + NSNumber_FormatInt(valobj, stream, (int)value, options.GetLanguage()); + break; + case 17: // 0B10001 + data_location += 8; + case 4: // 0B0100 + value = process_sp->ReadUnsignedIntegerFromMemory(data_location, 8, 0, error); + if (error.Fail()) + return false; + NSNumber_FormatLong(valobj, stream, value, options.GetLanguage()); + break; + case 5: // 0B0101 + { + uint32_t flt_as_int = process_sp->ReadUnsignedIntegerFromMemory(data_location, 4, 0, error); + if (error.Fail()) + return false; + float flt_value = *((float*)&flt_as_int); + NSNumber_FormatFloat(valobj, stream, flt_value, options.GetLanguage()); + break; + } + case 6: // 0B0110 + { + uint64_t dbl_as_lng = process_sp->ReadUnsignedIntegerFromMemory(data_location, 8, 0, error); + if (error.Fail()) + return false; + double dbl_value = *((double*)&dbl_as_lng); + NSNumber_FormatDouble(valobj, stream, dbl_value, options.GetLanguage()); + break; + } + default: + return false; + } + return true; + } + } + else + { + return ExtractSummaryFromObjCExpression(valobj, "NSString*", "stringValue", stream, options.GetLanguage()); + } +} + +bool +lldb_private::formatters::NSURLSummaryProvider (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; + + 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; + + if (strcmp(class_name, "NSURL") == 0) + { + uint64_t offset_text = ptr_size + ptr_size + 8; // ISA + pointer + 8 bytes of data (even on 32bit) + uint64_t offset_base = offset_text + ptr_size; + CompilerType type(valobj.GetCompilerType()); + ValueObjectSP text(valobj.GetSyntheticChildAtOffset(offset_text, type, true)); + ValueObjectSP base(valobj.GetSyntheticChildAtOffset(offset_base, type, true)); + if (!text) + return false; + if (text->GetValueAsUnsigned(0) == 0) + return false; + StreamString summary; + if (!NSStringSummaryProvider(*text, summary, options)) + return false; + if (base && base->GetValueAsUnsigned(0)) + { + if (summary.GetSize() > 0) + summary.GetString().resize(summary.GetSize()-1); + summary.Printf(" -- "); + StreamString base_summary; + if (NSURLSummaryProvider(*base, base_summary, options) && base_summary.GetSize() > 0) + summary.Printf("%s",base_summary.GetSize() > 2 ? base_summary.GetData() + 2 : base_summary.GetData()); + } + if (summary.GetSize()) + { + stream.Printf("%s",summary.GetData()); + return true; + } + } + else + { + return ExtractSummaryFromObjCExpression(valobj, "NSString*", "description", stream, options.GetLanguage()); + } + return false; +} + +bool +lldb_private::formatters::NSDateSummaryProvider (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; + + uint32_t ptr_size = process_sp->GetAddressByteSize(); + + lldb::addr_t valobj_addr = valobj.GetValueAsUnsigned(0); + + if (!valobj_addr) + return false; + + uint64_t date_value_bits = 0; + double date_value = 0.0; + + const char* class_name = descriptor->GetClassName().GetCString(); + + if (!class_name || !*class_name) + return false; + + if (strcmp(class_name,"NSDate") == 0 || + strcmp(class_name,"__NSDate") == 0 || + strcmp(class_name,"__NSTaggedDate") == 0) + { + uint64_t info_bits=0,value_bits = 0; + if (descriptor->GetTaggedPointerInfo(&info_bits,&value_bits)) + { + date_value_bits = ((value_bits << 8) | (info_bits << 4)); + date_value = *((double*)&date_value_bits); + } + else + { + Error error; + date_value_bits = process_sp->ReadUnsignedIntegerFromMemory(valobj_addr+ptr_size, 8, 0, error); + date_value = *((double*)&date_value_bits); + if (error.Fail()) + return false; + } + } + else if (!strcmp(class_name,"NSCalendarDate")) + { + Error error; + date_value_bits = process_sp->ReadUnsignedIntegerFromMemory(valobj_addr+2*ptr_size, 8, 0, error); + date_value = *((double*)&date_value_bits); + if (error.Fail()) + return false; + } + else + { + if (ExtractValueFromObjCExpression(valobj, "NSTimeInterval", "ExtractValueFromObjCExpression", date_value_bits) == false) + return false; + date_value = *((double*)&date_value_bits); + } + if (date_value == -63114076800) + { + stream.Printf("0001-12-30 00:00:00 +0000"); + return true; + } + // this snippet of code assumes that time_t == seconds since Jan-1-1970 + // this is generally true and POSIXly happy, but might break if a library + // vendor decides to get creative + time_t epoch = GetOSXEpoch(); + epoch = epoch + (time_t)date_value; + tm *tm_date = gmtime(&epoch); + if (!tm_date) + return false; + std::string buffer(1024,0); + if (strftime (&buffer[0], 1023, "%Z", tm_date) == 0) + return false; + stream.Printf("%04d-%02d-%02d %02d:%02d:%02d %s", tm_date->tm_year+1900, tm_date->tm_mon+1, tm_date->tm_mday, tm_date->tm_hour, tm_date->tm_min, tm_date->tm_sec, buffer.c_str()); + 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; + + ConstString class_name = descriptor->GetClassName(); + + if (class_name.IsEmpty()) + return false; + + if (ConstString cs = Mangled(class_name).GetDemangledName(lldb::eLanguageTypeUnknown)) + class_name = cs; + + stream.Printf("%s",class_name.AsCString("<unknown class>")); + return true; +} + +class ObjCClassSyntheticChildrenFrontEnd : public SyntheticChildrenFrontEnd +{ +public: + ObjCClassSyntheticChildrenFrontEnd (lldb::ValueObjectSP valobj_sp) : + SyntheticChildrenFrontEnd(*valobj_sp.get()) + { + } + + ~ObjCClassSyntheticChildrenFrontEnd() override = default; + + size_t + CalculateNumChildren() override + { + return 0; + } + + lldb::ValueObjectSP + GetChildAtIndex(size_t idx) override + { + return lldb::ValueObjectSP(); + } + + bool + Update() override + { + return false; + } + + bool + MightHaveChildren() override + { + return false; + } + + size_t + GetIndexOfChildWithName(const ConstString &name) override + { + return UINT32_MAX; + } +}; + +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; +} + +bool +lldb_private::formatters::ObjCBOOLSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& options) +{ + const uint32_t type_info = valobj.GetCompilerType().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; + + CompilerType charstar (valobj.GetCompilerType().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; +} + +bool +lldb_private::formatters::RuntimeSpecificDescriptionSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& options) +{ + if (const char* description = valobj.GetObjectDescription()) + { + stream.Printf("%s", description); + return true; + } + else + return false; +} + +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&); |
