forked from OSchip/llvm-project
1372 lines
42 KiB
C++
1372 lines
42 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/lldb-python.h"
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#include "lldb/DataFormatters/CXXFormatterFunctions.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/ObjCLanguageRuntime.h"
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#include "lldb/Target/Target.h"
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#include <algorithm>
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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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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 = exe_ctx.GetFramePtr();
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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 = exe_ctx.GetFramePtr();
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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 = exe_ctx.GetFramePtr();
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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 = exe_ctx.GetFramePtr();
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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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// use this call if you already have an LLDB-side buffer for the data
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template<typename SourceDataType>
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static bool
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DumpUTFBufferToStream (ConversionResult (*ConvertFunction) (const SourceDataType**,
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const SourceDataType*,
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UTF8**,
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UTF8*,
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ConversionFlags),
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DataExtractor& data,
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Stream& stream,
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char prefix_token = '@',
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char quote = '"',
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uint32_t sourceSize = 0)
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{
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if (prefix_token != 0)
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stream.Printf("%c",prefix_token);
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if (quote != 0)
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stream.Printf("%c",quote);
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if (data.GetByteSize() && data.GetDataStart() && data.GetDataEnd())
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{
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const int bufferSPSize = data.GetByteSize();
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if (sourceSize == 0)
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{
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const int origin_encoding = 8*sizeof(SourceDataType);
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sourceSize = bufferSPSize/(origin_encoding / 4);
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}
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SourceDataType *data_ptr = (SourceDataType*)data.GetDataStart();
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SourceDataType *data_end_ptr = data_ptr + sourceSize;
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while (data_ptr < data_end_ptr)
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{
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if (!*data_ptr)
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{
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data_end_ptr = data_ptr;
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break;
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}
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data_ptr++;
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}
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data_ptr = (SourceDataType*)data.GetDataStart();
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lldb::DataBufferSP utf8_data_buffer_sp;
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UTF8* utf8_data_ptr = nullptr;
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UTF8* utf8_data_end_ptr = nullptr;
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if (ConvertFunction)
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{
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utf8_data_buffer_sp.reset(new DataBufferHeap(4*bufferSPSize,0));
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utf8_data_ptr = (UTF8*)utf8_data_buffer_sp->GetBytes();
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utf8_data_end_ptr = utf8_data_ptr + utf8_data_buffer_sp->GetByteSize();
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ConvertFunction ( (const SourceDataType**)&data_ptr, data_end_ptr, &utf8_data_ptr, utf8_data_end_ptr, lenientConversion );
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utf8_data_ptr = (UTF8*)utf8_data_buffer_sp->GetBytes(); // needed because the ConvertFunction will change the value of the data_ptr
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}
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else
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{
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// just copy the pointers - the cast is necessary to make the compiler happy
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// but this should only happen if we are reading UTF8 data
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utf8_data_ptr = (UTF8*)data_ptr;
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utf8_data_end_ptr = (UTF8*)data_end_ptr;
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}
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// since we tend to accept partial data (and even partially malformed data)
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// we might end up with no NULL terminator before the end_ptr
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// hence we need to take a slower route and ensure we stay within boundaries
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for (;utf8_data_ptr != utf8_data_end_ptr; utf8_data_ptr++)
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{
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if (!*utf8_data_ptr)
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break;
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stream.Printf("%c",*utf8_data_ptr);
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}
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}
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if (quote != 0)
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stream.Printf("%c",quote);
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return true;
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}
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template<typename SourceDataType>
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class ReadUTFBufferAndDumpToStreamOptions
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{
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public:
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typedef ConversionResult (*ConvertFunctionType) (const SourceDataType**,
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const SourceDataType*,
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UTF8**,
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UTF8*,
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ConversionFlags);
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ReadUTFBufferAndDumpToStreamOptions () :
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m_conversion_function(NULL),
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m_location(0),
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m_process_sp(),
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m_stream(NULL),
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m_prefix_token('@'),
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m_quote('"'),
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m_source_size(0),
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m_needs_zero_termination(true)
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{
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}
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ReadUTFBufferAndDumpToStreamOptions&
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SetConversionFunction (ConvertFunctionType f)
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{
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m_conversion_function = f;
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return *this;
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}
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ConvertFunctionType
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GetConversionFunction () const
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{
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return m_conversion_function;
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}
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ReadUTFBufferAndDumpToStreamOptions&
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SetLocation (uint64_t l)
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{
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m_location = l;
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return *this;
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}
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uint64_t
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GetLocation () const
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{
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return m_location;
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}
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ReadUTFBufferAndDumpToStreamOptions&
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SetProcessSP (ProcessSP p)
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{
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m_process_sp = p;
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return *this;
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}
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ProcessSP
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GetProcessSP () const
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{
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return m_process_sp;
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}
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ReadUTFBufferAndDumpToStreamOptions&
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SetStream (Stream* s)
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{
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m_stream = s;
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return *this;
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}
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Stream*
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GetStream () const
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{
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return m_stream;
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}
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ReadUTFBufferAndDumpToStreamOptions&
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SetPrefixToken (char p)
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{
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m_prefix_token = p;
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return *this;
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}
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char
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GetPrefixToken () const
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{
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return m_prefix_token;
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}
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ReadUTFBufferAndDumpToStreamOptions&
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SetQuote (char q)
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{
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m_quote = q;
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return *this;
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}
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char
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GetQuote () const
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{
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return m_quote;
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}
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ReadUTFBufferAndDumpToStreamOptions&
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SetSourceSize (uint32_t s)
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{
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m_source_size = s;
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return *this;
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}
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uint32_t
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GetSourceSize () const
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{
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return m_source_size;
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}
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ReadUTFBufferAndDumpToStreamOptions&
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SetNeedsZeroTermination (bool z)
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{
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m_needs_zero_termination = z;
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return *this;
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}
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bool
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GetNeedsZeroTermination () const
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{
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return m_needs_zero_termination;
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}
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private:
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ConvertFunctionType m_conversion_function;
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uint64_t m_location;
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ProcessSP m_process_sp;
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Stream* m_stream;
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char m_prefix_token;
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char m_quote;
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uint32_t m_source_size;
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bool m_needs_zero_termination;
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};
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template<typename SourceDataType>
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static bool
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ReadUTFBufferAndDumpToStream (const ReadUTFBufferAndDumpToStreamOptions<SourceDataType>& options)
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{
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if (options.GetLocation() == 0 || options.GetLocation() == LLDB_INVALID_ADDRESS)
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return false;
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ProcessSP process_sp(options.GetProcessSP());
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if (!process_sp)
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return false;
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const int type_width = sizeof(SourceDataType);
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const int origin_encoding = 8 * type_width ;
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if (origin_encoding != 8 && origin_encoding != 16 && origin_encoding != 32)
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return false;
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// if not UTF8, I need a conversion function to return proper UTF8
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if (origin_encoding != 8 && !options.GetConversionFunction())
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return false;
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if (!options.GetStream())
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return false;
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uint32_t sourceSize = options.GetSourceSize();
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bool needs_zero_terminator = options.GetNeedsZeroTermination();
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if (!sourceSize)
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{
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sourceSize = process_sp->GetTarget().GetMaximumSizeOfStringSummary();
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needs_zero_terminator = true;
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}
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else
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sourceSize = std::min(sourceSize,process_sp->GetTarget().GetMaximumSizeOfStringSummary());
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const int bufferSPSize = sourceSize * type_width;
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lldb::DataBufferSP buffer_sp(new DataBufferHeap(bufferSPSize,0));
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if (!buffer_sp->GetBytes())
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return false;
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Error error;
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char *buffer = reinterpret_cast<char *>(buffer_sp->GetBytes());
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size_t data_read = 0;
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if (needs_zero_terminator)
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data_read = process_sp->ReadStringFromMemory(options.GetLocation(), buffer, bufferSPSize, error, type_width);
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else
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data_read = process_sp->ReadMemoryFromInferior(options.GetLocation(), (char*)buffer_sp->GetBytes(), bufferSPSize, error);
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if (error.Fail() || data_read == 0)
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{
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options.GetStream()->Printf("unable to read data");
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return true;
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}
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DataExtractor data(buffer_sp, process_sp->GetByteOrder(), process_sp->GetAddressByteSize());
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return DumpUTFBufferToStream(options.GetConversionFunction(), data, *options.GetStream(), options.GetPrefixToken(), options.GetQuote(), sourceSize);
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}
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bool
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lldb_private::formatters::Char16StringSummaryProvider (ValueObject& valobj, Stream& stream)
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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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ReadUTFBufferAndDumpToStreamOptions<UTF16> options;
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options.SetLocation(valobj_addr);
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options.SetConversionFunction(ConvertUTF16toUTF8);
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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 (!ReadUTFBufferAndDumpToStream(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)
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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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ReadUTFBufferAndDumpToStreamOptions<UTF32> options;
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options.SetLocation(valobj_addr);
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options.SetConversionFunction(ConvertUTF32toUTF8);
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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 (!ReadUTFBufferAndDumpToStream(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)
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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();
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switch (wchar_size)
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{
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case 8:
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{
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// utf 8
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|
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ReadUTFBufferAndDumpToStreamOptions<UTF8> options;
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options.SetLocation(data_addr);
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options.SetConversionFunction(nullptr);
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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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return ReadUTFBufferAndDumpToStream(options);
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}
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case 16:
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{
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// utf 16
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ReadUTFBufferAndDumpToStreamOptions<UTF16> options;
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options.SetLocation(data_addr);
|
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options.SetConversionFunction(ConvertUTF16toUTF8);
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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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|
|
return ReadUTFBufferAndDumpToStream(options);
|
|
}
|
|
case 32:
|
|
{
|
|
// utf 32
|
|
ReadUTFBufferAndDumpToStreamOptions<UTF32> options;
|
|
options.SetLocation(data_addr);
|
|
options.SetConversionFunction(ConvertUTF32toUTF8);
|
|
options.SetProcessSP(process_sp);
|
|
options.SetStream(&stream);
|
|
options.SetPrefixToken('L');
|
|
|
|
return ReadUTFBufferAndDumpToStream(options);
|
|
}
|
|
default:
|
|
stream.Printf("size for wchar_t is not valid");
|
|
return true;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
bool
|
|
lldb_private::formatters::Char16SummaryProvider (ValueObject& valobj, Stream& stream)
|
|
{
|
|
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());
|
|
|
|
return DumpUTFBufferToStream<UTF16>(ConvertUTF16toUTF8,data,stream, 'u','\'',1);
|
|
}
|
|
|
|
bool
|
|
lldb_private::formatters::Char32SummaryProvider (ValueObject& valobj, Stream& stream)
|
|
{
|
|
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());
|
|
|
|
return DumpUTFBufferToStream<UTF32>(ConvertUTF32toUTF8,data,stream, 'U','\'',1);
|
|
}
|
|
|
|
bool
|
|
lldb_private::formatters::WCharSummaryProvider (ValueObject& valobj, Stream& stream)
|
|
{
|
|
DataExtractor data;
|
|
Error error;
|
|
valobj.GetData(data, error);
|
|
|
|
if (error.Fail())
|
|
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();
|
|
std::string value;
|
|
|
|
switch (wchar_size)
|
|
{
|
|
case 8:
|
|
// utf 8
|
|
valobj.GetValueAsCString(lldb::eFormatChar, value);
|
|
if (!value.empty())
|
|
stream.Printf("%s ", value.c_str());
|
|
return DumpUTFBufferToStream<UTF8>(nullptr,
|
|
data,
|
|
stream,
|
|
'L',
|
|
'\'',
|
|
1);
|
|
case 16:
|
|
// utf 16
|
|
valobj.GetValueAsCString(lldb::eFormatUnicode16, value);
|
|
if (!value.empty())
|
|
stream.Printf("%s ", value.c_str());
|
|
return DumpUTFBufferToStream<UTF16>(ConvertUTF16toUTF8,
|
|
data,
|
|
stream,
|
|
'L',
|
|
'\'',
|
|
1);
|
|
case 32:
|
|
// utf 32
|
|
valobj.GetValueAsCString(lldb::eFormatUnicode32, value);
|
|
if (!value.empty())
|
|
stream.Printf("%s ", value.c_str());
|
|
return DumpUTFBufferToStream<UTF32>(ConvertUTF32toUTF8,
|
|
data,
|
|
stream,
|
|
'L',
|
|
'\'',
|
|
1);
|
|
default:
|
|
stream.Printf("size for wchar_t is not valid");
|
|
return true;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
// 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)
|
|
{
|
|
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);
|
|
}
|
|
|
|
bool
|
|
lldb_private::formatters::LibcxxStringSummaryProvider (ValueObject& valobj, Stream& stream)
|
|
{
|
|
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;
|
|
Error error;
|
|
if (location_sp->ReadPointedString(stream,
|
|
error,
|
|
0, // max length is decided by the settings
|
|
false) == 0) // do not honor array (terminates on first 0 byte even for a char[])
|
|
stream.Printf("\"\""); // if nothing was read, print an empty string
|
|
return error.Success();
|
|
}
|
|
|
|
bool
|
|
lldb_private::formatters::ObjCClassSummaryProvider (ValueObject& valobj, Stream& stream)
|
|
{
|
|
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)
|
|
{
|
|
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::NSStringSummaryProvider (ValueObject& valobj, Stream& stream)
|
|
{
|
|
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 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)
|
|
{
|
|
ReadUTFBufferAndDumpToStreamOptions<UTF16> options;
|
|
options.SetConversionFunction(ConvertUTF16toUTF8);
|
|
options.SetLocation(location);
|
|
options.SetProcessSP(process_sp);
|
|
options.SetStream(&stream);
|
|
options.SetPrefixToken('@');
|
|
options.SetQuote('"');
|
|
options.SetSourceSize(explicit_length);
|
|
options.SetNeedsZeroTermination(false);
|
|
return ReadUTFBufferAndDumpToStream (options);
|
|
}
|
|
else
|
|
return ReadAsciiBufferAndDumpToStream(location+1,process_sp,stream, explicit_length);
|
|
}
|
|
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;
|
|
}
|
|
ReadUTFBufferAndDumpToStreamOptions<UTF16> options;
|
|
options.SetConversionFunction(ConvertUTF16toUTF8);
|
|
options.SetLocation(location);
|
|
options.SetProcessSP(process_sp);
|
|
options.SetStream(&stream);
|
|
options.SetPrefixToken('@');
|
|
options.SetQuote('"');
|
|
options.SetSourceSize(explicit_length);
|
|
options.SetNeedsZeroTermination(has_explicit_length == false);
|
|
return ReadUTFBufferAndDumpToStream (options);
|
|
}
|
|
else if (is_special)
|
|
{
|
|
uint64_t location = valobj_addr + (ptr_size == 8 ? 12 : 8);
|
|
ReadUTFBufferAndDumpToStreamOptions<UTF16> options;
|
|
options.SetConversionFunction(ConvertUTF16toUTF8);
|
|
options.SetLocation(location);
|
|
options.SetProcessSP(process_sp);
|
|
options.SetStream(&stream);
|
|
options.SetPrefixToken('@');
|
|
options.SetQuote('"');
|
|
options.SetSourceSize(explicit_length);
|
|
options.SetNeedsZeroTermination(has_explicit_length == false);
|
|
return ReadUTFBufferAndDumpToStream (options);
|
|
}
|
|
else if (is_inline)
|
|
{
|
|
uint64_t location = valobj_addr + 2*ptr_size;
|
|
if (!has_explicit_length)
|
|
location++;
|
|
return ReadAsciiBufferAndDumpToStream(location,process_sp,stream,explicit_length);
|
|
}
|
|
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
|
|
return ReadAsciiBufferAndDumpToStream(location,process_sp,stream,explicit_length);
|
|
}
|
|
|
|
stream.Printf("class name = %s",class_name);
|
|
return true;
|
|
|
|
}
|
|
|
|
bool
|
|
lldb_private::formatters::NSAttributedStringSummaryProvider (ValueObject& valobj, Stream& stream)
|
|
{
|
|
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);
|
|
return false;
|
|
}
|
|
|
|
bool
|
|
lldb_private::formatters::NSMutableAttributedStringSummaryProvider (ValueObject& valobj, Stream& stream)
|
|
{
|
|
return NSAttributedStringSummaryProvider(valobj, stream);
|
|
}
|
|
|
|
bool
|
|
lldb_private::formatters::RuntimeSpecificDescriptionSummaryProvider (ValueObject& valobj, Stream& stream)
|
|
{
|
|
stream.Printf("%s",valobj.GetObjectDescription());
|
|
return true;
|
|
}
|
|
|
|
bool
|
|
lldb_private::formatters::ObjCBOOLSummaryProvider (ValueObject& valobj, Stream& stream)
|
|
{
|
|
const uint32_t type_info = valobj.GetClangType().GetTypeInfo();
|
|
|
|
ValueObjectSP real_guy_sp = valobj.GetSP();
|
|
|
|
if (type_info & ClangASTType::eTypeIsPointer)
|
|
{
|
|
Error err;
|
|
real_guy_sp = valobj.Dereference(err);
|
|
if (err.Fail() || !real_guy_sp)
|
|
return false;
|
|
}
|
|
else if (type_info & ClangASTType::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)
|
|
{
|
|
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 = ValueObject::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&) ;
|
|
|
|
template bool
|
|
lldb_private::formatters::NSDataSummaryProvider<false> (ValueObject&, Stream&) ;
|
|
|
|
template bool
|
|
lldb_private::formatters::ObjCSELSummaryProvider<true> (ValueObject&, Stream&) ;
|
|
|
|
template bool
|
|
lldb_private::formatters::ObjCSELSummaryProvider<false> (ValueObject&, Stream&) ;
|