1229 lines
39 KiB
C++
1229 lines
39 KiB
C++
//===-- CXXFormatterFunctions.cpp---------------------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "lldb/DataFormatters/CXXFormatterFunctions.h"
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#include "lldb/DataFormatters/StringPrinter.h"
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#include "lldb/DataFormatters/TypeSummary.h"
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#include "llvm/Support/ConvertUTF.h"
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#include "lldb/Core/DataBufferHeap.h"
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#include "lldb/Core/Error.h"
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#include "lldb/Core/Stream.h"
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#include "lldb/Core/ValueObject.h"
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#include "lldb/Core/ValueObjectConstResult.h"
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#include "lldb/Host/Endian.h"
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#include "lldb/Symbol/ClangASTContext.h"
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#include "lldb/Target/SectionLoadList.h"
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#include "lldb/Target/Target.h"
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#include "lldb/Target/Thread.h"
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#include "lldb/Utility/ProcessStructReader.h"
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#include <algorithm>
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#if __ANDROID_NDK__
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#include <sys/types.h>
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#endif
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#include "lldb/Host/Time.h"
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using namespace lldb;
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using namespace lldb_private;
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using namespace lldb_private::formatters;
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StackFrame*
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lldb_private::formatters::GetViableFrame (ExecutionContext exe_ctx)
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{
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StackFrame* frame = exe_ctx.GetFramePtr();
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if (frame)
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return frame;
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Process* process = exe_ctx.GetProcessPtr();
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if (!process)
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return nullptr;
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ThreadSP thread_sp(process->GetThreadList().GetSelectedThread());
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if (thread_sp)
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return thread_sp->GetSelectedFrame().get();
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return nullptr;
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}
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bool
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lldb_private::formatters::ExtractValueFromObjCExpression (ValueObject &valobj,
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const char* target_type,
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const char* selector,
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uint64_t &value)
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{
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if (!target_type || !*target_type)
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return false;
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if (!selector || !*selector)
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return false;
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StreamString expr;
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expr.Printf("(%s)[(id)0x%" PRIx64 " %s]",target_type,valobj.GetPointerValue(),selector);
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ExecutionContext exe_ctx (valobj.GetExecutionContextRef());
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lldb::ValueObjectSP result_sp;
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Target* target = exe_ctx.GetTargetPtr();
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StackFrame* stack_frame = GetViableFrame(exe_ctx);
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if (!target || !stack_frame)
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return false;
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EvaluateExpressionOptions options;
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options.SetCoerceToId(false);
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options.SetUnwindOnError(true);
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options.SetKeepInMemory(true);
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target->EvaluateExpression(expr.GetData(),
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stack_frame,
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result_sp,
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options);
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if (!result_sp)
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return false;
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value = result_sp->GetValueAsUnsigned(0);
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return true;
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}
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bool
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lldb_private::formatters::ExtractSummaryFromObjCExpression (ValueObject &valobj,
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const char* target_type,
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const char* selector,
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Stream &stream)
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{
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if (!target_type || !*target_type)
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return false;
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if (!selector || !*selector)
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return false;
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StreamString expr;
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expr.Printf("(%s)[(id)0x%" PRIx64 " %s]",target_type,valobj.GetPointerValue(),selector);
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ExecutionContext exe_ctx (valobj.GetExecutionContextRef());
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lldb::ValueObjectSP result_sp;
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Target* target = exe_ctx.GetTargetPtr();
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StackFrame* stack_frame = GetViableFrame(exe_ctx);
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if (!target || !stack_frame)
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return false;
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EvaluateExpressionOptions options;
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options.SetCoerceToId(false);
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options.SetUnwindOnError(true);
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options.SetKeepInMemory(true);
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options.SetUseDynamic(lldb::eDynamicCanRunTarget);
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target->EvaluateExpression(expr.GetData(),
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stack_frame,
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result_sp,
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options);
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if (!result_sp)
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return false;
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stream.Printf("%s",result_sp->GetSummaryAsCString());
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return true;
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}
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lldb::ValueObjectSP
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lldb_private::formatters::CallSelectorOnObject (ValueObject &valobj,
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const char* return_type,
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const char* selector,
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uint64_t index)
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{
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lldb::ValueObjectSP valobj_sp;
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if (!return_type || !*return_type)
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return valobj_sp;
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if (!selector || !*selector)
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return valobj_sp;
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StreamString expr_path_stream;
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valobj.GetExpressionPath(expr_path_stream, false);
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StreamString expr;
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expr.Printf("(%s)[%s %s:%" PRId64 "]",return_type,expr_path_stream.GetData(),selector,index);
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ExecutionContext exe_ctx (valobj.GetExecutionContextRef());
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lldb::ValueObjectSP result_sp;
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Target* target = exe_ctx.GetTargetPtr();
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StackFrame* stack_frame = GetViableFrame(exe_ctx);
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if (!target || !stack_frame)
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return valobj_sp;
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EvaluateExpressionOptions options;
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options.SetCoerceToId(false);
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options.SetUnwindOnError(true);
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options.SetKeepInMemory(true);
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options.SetUseDynamic(lldb::eDynamicCanRunTarget);
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target->EvaluateExpression(expr.GetData(),
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stack_frame,
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valobj_sp,
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options);
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return valobj_sp;
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}
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lldb::ValueObjectSP
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lldb_private::formatters::CallSelectorOnObject (ValueObject &valobj,
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const char* return_type,
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const char* selector,
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const char* key)
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{
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lldb::ValueObjectSP valobj_sp;
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if (!return_type || !*return_type)
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return valobj_sp;
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if (!selector || !*selector)
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return valobj_sp;
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if (!key || !*key)
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return valobj_sp;
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StreamString expr_path_stream;
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valobj.GetExpressionPath(expr_path_stream, false);
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StreamString expr;
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expr.Printf("(%s)[%s %s:%s]",return_type,expr_path_stream.GetData(),selector,key);
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ExecutionContext exe_ctx (valobj.GetExecutionContextRef());
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lldb::ValueObjectSP result_sp;
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Target* target = exe_ctx.GetTargetPtr();
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StackFrame* stack_frame = GetViableFrame(exe_ctx);
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if (!target || !stack_frame)
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return valobj_sp;
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EvaluateExpressionOptions options;
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options.SetCoerceToId(false);
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options.SetUnwindOnError(true);
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options.SetKeepInMemory(true);
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options.SetUseDynamic(lldb::eDynamicCanRunTarget);
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target->EvaluateExpression(expr.GetData(),
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stack_frame,
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valobj_sp,
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options);
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return valobj_sp;
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}
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bool
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lldb_private::formatters::FunctionPointerSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& options)
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{
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std::string destination;
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StreamString sstr;
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AddressType func_ptr_address_type = eAddressTypeInvalid;
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addr_t func_ptr_address = valobj.GetPointerValue (&func_ptr_address_type);
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if (func_ptr_address != 0 && func_ptr_address != LLDB_INVALID_ADDRESS)
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{
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switch (func_ptr_address_type)
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{
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case eAddressTypeInvalid:
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case eAddressTypeFile:
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case eAddressTypeHost:
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break;
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case eAddressTypeLoad:
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{
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ExecutionContext exe_ctx (valobj.GetExecutionContextRef());
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Address so_addr;
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Target *target = exe_ctx.GetTargetPtr();
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if (target && target->GetSectionLoadList().IsEmpty() == false)
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{
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if (target->GetSectionLoadList().ResolveLoadAddress(func_ptr_address, so_addr))
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{
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so_addr.Dump (&sstr,
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exe_ctx.GetBestExecutionContextScope(),
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Address::DumpStyleResolvedDescription,
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Address::DumpStyleSectionNameOffset);
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}
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}
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}
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break;
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}
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}
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if (sstr.GetSize() > 0)
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{
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stream.Printf("(%s)", sstr.GetData());
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return true;
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}
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else
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return false;
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}
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bool
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lldb_private::formatters::Char16StringSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions&)
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{
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ProcessSP process_sp = valobj.GetProcessSP();
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if (!process_sp)
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return false;
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lldb::addr_t valobj_addr = valobj.GetValueAsUnsigned(0);
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if (!valobj_addr)
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return false;
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ReadStringAndDumpToStreamOptions options(valobj);
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options.SetLocation(valobj_addr);
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options.SetProcessSP(process_sp);
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options.SetStream(&stream);
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options.SetPrefixToken('u');
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if (!ReadStringAndDumpToStream<StringElementType::UTF16>(options))
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{
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stream.Printf("Summary Unavailable");
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return true;
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}
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return true;
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}
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bool
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lldb_private::formatters::Char32StringSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions&)
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{
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ProcessSP process_sp = valobj.GetProcessSP();
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if (!process_sp)
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return false;
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lldb::addr_t valobj_addr = valobj.GetValueAsUnsigned(0);
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if (!valobj_addr)
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return false;
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ReadStringAndDumpToStreamOptions options(valobj);
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options.SetLocation(valobj_addr);
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options.SetProcessSP(process_sp);
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options.SetStream(&stream);
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options.SetPrefixToken('U');
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if (!ReadStringAndDumpToStream<StringElementType::UTF32>(options))
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{
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stream.Printf("Summary Unavailable");
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return true;
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}
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return true;
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}
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bool
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lldb_private::formatters::WCharStringSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions&)
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{
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ProcessSP process_sp = valobj.GetProcessSP();
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if (!process_sp)
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return false;
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lldb::addr_t data_addr = 0;
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if (valobj.IsPointerType())
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data_addr = valobj.GetValueAsUnsigned(0);
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else if (valobj.IsArrayType())
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data_addr = valobj.GetAddressOf();
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if (data_addr == 0 || data_addr == LLDB_INVALID_ADDRESS)
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return false;
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clang::ASTContext* ast = valobj.GetClangType().GetASTContext();
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if (!ast)
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return false;
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ClangASTType wchar_clang_type = ClangASTContext::GetBasicType(ast, lldb::eBasicTypeWChar);
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const uint32_t wchar_size = wchar_clang_type.GetBitSize(nullptr); // Safe to pass NULL for exe_scope here
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ReadStringAndDumpToStreamOptions options(valobj);
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options.SetLocation(data_addr);
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options.SetProcessSP(process_sp);
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options.SetStream(&stream);
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options.SetPrefixToken('L');
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switch (wchar_size)
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{
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case 8:
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return ReadStringAndDumpToStream<StringElementType::UTF8>(options);
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case 16:
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return ReadStringAndDumpToStream<StringElementType::UTF16>(options);
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case 32:
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return ReadStringAndDumpToStream<StringElementType::UTF32>(options);
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default:
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stream.Printf("size for wchar_t is not valid");
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return true;
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}
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return true;
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}
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bool
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lldb_private::formatters::Char16SummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions&)
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{
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DataExtractor data;
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Error error;
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valobj.GetData(data, error);
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if (error.Fail())
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return false;
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std::string value;
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valobj.GetValueAsCString(lldb::eFormatUnicode16, value);
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if (!value.empty())
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stream.Printf("%s ", value.c_str());
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ReadBufferAndDumpToStreamOptions options(valobj);
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options.SetData(data);
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options.SetStream(&stream);
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options.SetPrefixToken('u');
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options.SetQuote('\'');
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options.SetSourceSize(1);
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return ReadBufferAndDumpToStream<StringElementType::UTF16>(options);
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}
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bool
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lldb_private::formatters::Char32SummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions&)
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{
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DataExtractor data;
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Error error;
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valobj.GetData(data, error);
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if (error.Fail())
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return false;
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std::string value;
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valobj.GetValueAsCString(lldb::eFormatUnicode32, value);
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if (!value.empty())
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stream.Printf("%s ", value.c_str());
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ReadBufferAndDumpToStreamOptions options(valobj);
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options.SetData(data);
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options.SetStream(&stream);
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options.SetPrefixToken('U');
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options.SetQuote('\'');
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options.SetSourceSize(1);
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return ReadBufferAndDumpToStream<StringElementType::UTF32>(options);
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}
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bool
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lldb_private::formatters::WCharSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions&)
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{
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DataExtractor data;
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Error error;
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valobj.GetData(data, error);
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if (error.Fail())
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return false;
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ReadBufferAndDumpToStreamOptions options(valobj);
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options.SetData(data);
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options.SetStream(&stream);
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options.SetPrefixToken('L');
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options.SetQuote('\'');
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options.SetSourceSize(1);
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return ReadBufferAndDumpToStream<StringElementType::UTF16>(options);
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}
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// the field layout in a libc++ string (cap, side, data or data, size, cap)
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enum LibcxxStringLayoutMode
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{
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eLibcxxStringLayoutModeCSD = 0,
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eLibcxxStringLayoutModeDSC = 1,
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eLibcxxStringLayoutModeInvalid = 0xffff
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};
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// this function abstracts away the layout and mode details of a libc++ string
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// and returns the address of the data and the size ready for callers to consume
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static bool
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ExtractLibcxxStringInfo (ValueObject& valobj,
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ValueObjectSP &location_sp,
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uint64_t& size)
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{
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ValueObjectSP D(valobj.GetChildAtIndexPath({0,0,0,0}));
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if (!D)
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return false;
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ValueObjectSP layout_decider(D->GetChildAtIndexPath({0,0}));
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// this child should exist
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if (!layout_decider)
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return false;
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ConstString g_data_name("__data_");
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ConstString g_size_name("__size_");
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bool short_mode = false; // this means the string is in short-mode and the data is stored inline
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LibcxxStringLayoutMode layout = (layout_decider->GetName() == g_data_name) ? eLibcxxStringLayoutModeDSC : eLibcxxStringLayoutModeCSD;
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uint64_t size_mode_value = 0;
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if (layout == eLibcxxStringLayoutModeDSC)
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{
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ValueObjectSP size_mode(D->GetChildAtIndexPath({1,1,0}));
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if (!size_mode)
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return false;
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if (size_mode->GetName() != g_size_name)
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{
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// we are hitting the padding structure, move along
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size_mode = D->GetChildAtIndexPath({1,1,1});
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if (!size_mode)
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return false;
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}
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size_mode_value = (size_mode->GetValueAsUnsigned(0));
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short_mode = ((size_mode_value & 0x80) == 0);
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}
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else
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{
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ValueObjectSP size_mode(D->GetChildAtIndexPath({1,0,0}));
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if (!size_mode)
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return false;
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size_mode_value = (size_mode->GetValueAsUnsigned(0));
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short_mode = ((size_mode_value & 1) == 0);
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}
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if (short_mode)
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{
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ValueObjectSP s(D->GetChildAtIndex(1, true));
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if (!s)
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return false;
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location_sp = s->GetChildAtIndex((layout == eLibcxxStringLayoutModeDSC) ? 0 : 1, true);
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size = (layout == eLibcxxStringLayoutModeDSC) ? size_mode_value : ((size_mode_value >> 1) % 256);
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return (location_sp.get() != nullptr);
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}
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else
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{
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ValueObjectSP l(D->GetChildAtIndex(0, true));
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if (!l)
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return false;
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// we can use the layout_decider object as the data pointer
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location_sp = (layout == eLibcxxStringLayoutModeDSC) ? layout_decider : l->GetChildAtIndex(2, true);
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ValueObjectSP size_vo(l->GetChildAtIndex(1, true));
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if (!size_vo || !location_sp)
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return false;
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size = size_vo->GetValueAsUnsigned(0);
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return true;
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}
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}
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bool
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lldb_private::formatters::LibcxxWStringSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& options)
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{
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uint64_t size = 0;
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ValueObjectSP location_sp((ValueObject*)nullptr);
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if (!ExtractLibcxxStringInfo(valobj, location_sp, size))
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return false;
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if (size == 0)
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{
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stream.Printf("L\"\"");
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return true;
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}
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if (!location_sp)
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return false;
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return WCharStringSummaryProvider(*location_sp.get(), stream, options);
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}
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bool
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lldb_private::formatters::LibcxxStringSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& summary_options)
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{
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uint64_t size = 0;
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ValueObjectSP location_sp((ValueObject*)nullptr);
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if (!ExtractLibcxxStringInfo(valobj, location_sp, size))
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return false;
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if (size == 0)
|
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{
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stream.Printf("\"\"");
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return true;
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}
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|
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if (!location_sp)
|
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return false;
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|
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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&) ;
|