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llvm-project/lldb/source/Core/CXXFormatterFunctions.cpp

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//===-- CXXFormatterFunctions.cpp---------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "lldb/Core/CXXFormatterFunctions.h"
// needed to get ConvertUTF16/32ToUTF8
#define CLANG_NEEDS_THESE_ONE_DAY
#include "clang/Basic/ConvertUTF.h"
#include "lldb/Core/DataBufferHeap.h"
#include "lldb/Core/Error.h"
#include "lldb/Core/Stream.h"
#include "lldb/Core/ValueObject.h"
#include "lldb/Core/ValueObjectConstResult.h"
#include "lldb/Host/Endian.h"
#include "lldb/Target/ObjCLanguageRuntime.h"
#include "lldb/Target/Target.h"
using namespace lldb;
using namespace lldb_private;
using namespace lldb_private::formatters;
bool
lldb_private::formatters::ExtractValueFromObjCExpression (ValueObject &valobj,
const char* target_type,
const char* selector,
uint64_t &value)
{
if (!target_type || !*target_type)
return false;
if (!selector || !*selector)
return false;
StreamString expr_path_stream;
valobj.GetExpressionPath(expr_path_stream, false);
StreamString expr;
expr.Printf("(%s)[%s %s]",target_type,expr_path_stream.GetData(),selector);
ExecutionContext exe_ctx (valobj.GetExecutionContextRef());
lldb::ValueObjectSP result_sp;
Target* target = exe_ctx.GetTargetPtr();
StackFrame* stack_frame = exe_ctx.GetFramePtr();
if (!target || !stack_frame)
return false;
EvaluateExpressionOptions options;
options.SetCoerceToId(false)
.SetUnwindOnError(true)
.SetKeepInMemory(true)
.SetUseDynamic(lldb::eDynamicCanRunTarget);
target->EvaluateExpression(expr.GetData(),
stack_frame,
result_sp,
options);
if (!result_sp)
return false;
value = result_sp->GetValueAsUnsigned(0);
return true;
}
lldb::ValueObjectSP
lldb_private::formatters::CallSelectorOnObject (ValueObject &valobj,
const char* return_type,
const char* selector,
uint64_t index)
{
lldb::ValueObjectSP valobj_sp;
if (!return_type || !*return_type)
return valobj_sp;
if (!selector || !*selector)
return valobj_sp;
StreamString expr_path_stream;
valobj.GetExpressionPath(expr_path_stream, false);
StreamString expr;
expr.Printf("(%s)[%s %s:%lld]",return_type,expr_path_stream.GetData(),selector,index);
ExecutionContext exe_ctx (valobj.GetExecutionContextRef());
lldb::ValueObjectSP result_sp;
Target* target = exe_ctx.GetTargetPtr();
StackFrame* stack_frame = exe_ctx.GetFramePtr();
if (!target || !stack_frame)
return valobj_sp;
EvaluateExpressionOptions options;
options.SetCoerceToId(false)
.SetUnwindOnError(true)
.SetKeepInMemory(true)
.SetUseDynamic(lldb::eDynamicCanRunTarget);
target->EvaluateExpression(expr.GetData(),
stack_frame,
valobj_sp,
options);
return valobj_sp;
}
lldb::ValueObjectSP
lldb_private::formatters::CallSelectorOnObject (ValueObject &valobj,
const char* return_type,
const char* selector,
const char* key)
{
lldb::ValueObjectSP valobj_sp;
if (!return_type || !*return_type)
return valobj_sp;
if (!selector || !*selector)
return valobj_sp;
if (!key || !*key)
return valobj_sp;
StreamString expr_path_stream;
valobj.GetExpressionPath(expr_path_stream, false);
StreamString expr;
expr.Printf("(%s)[%s %s:%s]",return_type,expr_path_stream.GetData(),selector,key);
ExecutionContext exe_ctx (valobj.GetExecutionContextRef());
lldb::ValueObjectSP result_sp;
Target* target = exe_ctx.GetTargetPtr();
StackFrame* stack_frame = exe_ctx.GetFramePtr();
if (!target || !stack_frame)
return valobj_sp;
EvaluateExpressionOptions options;
options.SetCoerceToId(false)
.SetUnwindOnError(true)
.SetKeepInMemory(true)
.SetUseDynamic(lldb::eDynamicCanRunTarget);
target->EvaluateExpression(expr.GetData(),
stack_frame,
valobj_sp,
options);
return valobj_sp;
}
template<bool name_entries>
bool
lldb_private::formatters::NSDictionarySummaryProvider (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();
bool is_64bit = (ptr_size == 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,"__NSDictionaryI"))
{
Error error;
value = process_sp->ReadUnsignedIntegerFromMemory(valobj_addr + ptr_size, ptr_size, 0, error);
if (error.Fail())
return false;
value &= (is_64bit ? ~0xFC00000000000000UL : ~0xFC000000U);
}
else if (!strcmp(class_name,"__NSDictionaryM"))
{
Error error;
value = process_sp->ReadUnsignedIntegerFromMemory(valobj_addr + ptr_size, ptr_size, 0, error);
if (error.Fail())
return false;
value &= (is_64bit ? ~0xFC00000000000000UL : ~0xFC000000U);
}
else if (!strcmp(class_name,"__NSCFDictionary"))
{
Error error;
value = process_sp->ReadUnsignedIntegerFromMemory(valobj_addr + (is_64bit ? 20 : 12), ptr_size, 0, error);
if (error.Fail())
return false;
if (is_64bit)
value &= ~0x0f1f000000000000UL;
}
else
{
if (!ExtractValueFromObjCExpression(valobj, "int", "count", value))
return false;
}
stream.Printf("%s%llu %s%s",
(name_entries ? "@\"" : ""),
value,
(name_entries ? (value == 1 ? "entry" : "entries") : (value == 1 ? "key/value pair" : "key/value pairs")),
(name_entries ? "\"" : ""));
return true;
}
bool
lldb_private::formatters::NSArraySummaryProvider (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;
uint64_t value = 0;
const char* class_name = descriptor->GetClassName().GetCString();
if (!class_name || !*class_name)
return false;
if (!strcmp(class_name,"__NSArrayI"))
{
Error error;
value = process_sp->ReadUnsignedIntegerFromMemory(valobj_addr + ptr_size, ptr_size, 0, error);
if (error.Fail())
return false;
}
else if (!strcmp(class_name,"__NSArrayM"))
{
Error error;
value = process_sp->ReadUnsignedIntegerFromMemory(valobj_addr + ptr_size, ptr_size, 0, error);
if (error.Fail())
return false;
}
else if (!strcmp(class_name,"__NSCFArray"))
{
Error error;
value = process_sp->ReadUnsignedIntegerFromMemory(valobj_addr + 2 * ptr_size, ptr_size, 0, error);
if (error.Fail())
return false;
}
else
{
if (!ExtractValueFromObjCExpression(valobj, "int", "count", value))
return false;
}
stream.Printf("@\"%llu object%s\"",
value,
value == 1 ? "" : "s");
return true;
}
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%llu byte%s%s",
(needs_at ? "@\"" : ""),
value,
(value > 1 ? "s" : ""),
(needs_at ? "\"" : ""));
return true;
}
bool
lldb_private::formatters::NSNumberSummaryProvider (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;
if (!strcmp(class_name,"NSNumber") || !strcmp(class_name,"__NSCFNumber"))
{
if (descriptor->IsTagged())
{
// we have a call to get info and value bits in the tagged descriptor. but we prefer not to cast and replicate them
int64_t value = (valobj_addr & ~0x0000000000000000FFL) >> 8;
uint64_t i_bits = (valobj_addr & 0xF0) >> 4;
switch (i_bits)
{
case 0:
stream.Printf("(char)%hhd",(char)value);
break;
case 4:
stream.Printf("(short)%hd",(short)value);
break;
case 8:
stream.Printf("(int)%d",(int)value);
break;
case 12:
stream.Printf("(long)%lld",value);
break;
default:
stream.Printf("absurd value:(info=%llu, value=%llu",i_bits,value);
break;
}
return true;
}
else
{
Error error;
uint8_t data_type = (process_sp->ReadUnsignedIntegerFromMemory(valobj_addr + ptr_size, 1, 0, error) & 0x1F);
uint64_t data_location = valobj_addr + 2*ptr_size;
uint64_t value = 0;
if (error.Fail())
return false;
switch (data_type)
{
case 1: // 0B00001
value = process_sp->ReadUnsignedIntegerFromMemory(data_location, 1, 0, error);
if (error.Fail())
return false;
stream.Printf("(char)%hhd",(char)value);
break;
case 2: // 0B0010
value = process_sp->ReadUnsignedIntegerFromMemory(data_location, 2, 0, error);
if (error.Fail())
return false;
stream.Printf("(short)%hd",(short)value);
break;
case 3: // 0B0011
value = process_sp->ReadUnsignedIntegerFromMemory(data_location, 4, 0, error);
if (error.Fail())
return false;
stream.Printf("(int)%d",(int)value);
break;
case 17: // 0B10001
data_location += 8;
case 4: // 0B0100
value = process_sp->ReadUnsignedIntegerFromMemory(data_location, 8, 0, error);
if (error.Fail())
return false;
stream.Printf("(long)%lld",value);
break;
case 5: // 0B0101
{
uint32_t flt_as_int = process_sp->ReadUnsignedIntegerFromMemory(data_location, 4, 0, error);
if (error.Fail())
return false;
float flt_value = *((float*)&flt_as_int);
stream.Printf("(float)%f",flt_value);
break;
}
case 6: // 0B0110
{
uint64_t dbl_as_lng = process_sp->ReadUnsignedIntegerFromMemory(data_location, 8, 0, error);
if (error.Fail())
return false;
double dbl_value = *((double*)&dbl_as_lng);
stream.Printf("(double)%g",dbl_value);
break;
}
default:
stream.Printf("absurd: dt=%d",data_type);
break;
}
return true;
}
}
else
{
// similar to ExtractValueFromObjCExpression but uses summary instead of value
StreamString expr_path_stream;
valobj.GetExpressionPath(expr_path_stream, false);
StreamString expr;
expr.Printf("(NSString*)[%s stringValue]",expr_path_stream.GetData());
ExecutionContext exe_ctx (valobj.GetExecutionContextRef());
lldb::ValueObjectSP result_sp;
Target* target = exe_ctx.GetTargetPtr();
StackFrame* stack_frame = exe_ctx.GetFramePtr();
if (!target || !stack_frame)
return false;
EvaluateExpressionOptions options;
options.SetCoerceToId(false)
.SetUnwindOnError(true)
.SetKeepInMemory(true)
.SetUseDynamic(lldb::eDynamicCanRunTarget);
target->EvaluateExpression(expr.GetData(),
stack_frame,
result_sp,
options);
if (!result_sp)
return false;
stream.Printf("%s",result_sp->GetSummaryAsCString());
return true;
}
}
static bool
ReadUTFBufferAndDumpToStream (uint64_t location,
const ProcessSP& process_sp,
Stream& stream)
{
Error error;
lldb::DataBufferSP buffer_sp(new DataBufferHeap(1024,0));
size_t data_read = process_sp->ReadMemoryFromInferior(location, (char*)buffer_sp->GetBytes(), 1024, error);
if (error.Fail())
{
stream.Printf("unable to read data");
return true;
}
else
stream.Printf("@\"");
if (data_read)
{
UTF16 *data_ptr = (UTF16*)buffer_sp->GetBytes();
UTF16 *data_end_ptr = data_ptr + 256;
while (data_ptr < data_end_ptr)
{
if (!*data_ptr)
{
data_end_ptr = data_ptr;
break;
}
data_ptr++;
}
*data_ptr = 0;
data_ptr = (UTF16*)buffer_sp->GetBytes();
lldb::DataBufferSP utf8_data_buffer_sp(new DataBufferHeap(1024,0));
UTF8* utf8_data_ptr = (UTF8*)utf8_data_buffer_sp->GetBytes();
UTF8* utf8_data_end_ptr = utf8_data_ptr + 1024;
ConvertUTF16toUTF8 ( (const UTF16**)&data_ptr,
data_end_ptr,
&utf8_data_ptr,
utf8_data_end_ptr,
lenientConversion);
utf8_data_ptr = (UTF8*)utf8_data_buffer_sp->GetBytes();
for (;utf8_data_ptr != utf8_data_end_ptr; utf8_data_ptr++)
{
if (!*utf8_data_ptr)
break;
stream.Printf("%c",*utf8_data_ptr);
}
stream.Printf("\"");
return true;
}
stream.Printf("\"");
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;
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"))
{
// probably not one of us - bail out
return false;
}
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 and is_unicode)
return ReadUTFBufferAndDumpToStream (location, process_sp, stream);
else
{
location++;
lldb::DataBufferSP buffer_sp(new DataBufferHeap(1024,0));
size_t data_read = process_sp->ReadCStringFromMemory(location, (char*)buffer_sp->GetBytes(), 1024, error);
if (error.Fail())
return false;
if (data_read)
stream.Printf("@\"%s\"",(char*)buffer_sp->GetBytes());
return true;
}
}
else if (is_inline && has_explicit_length && !is_unicode && !is_special && !is_mutable)
{
uint64_t location = 3 * ptr_size + valobj_addr;
lldb::DataBufferSP buffer_sp(new DataBufferHeap(1024,0));
size_t data_read = process_sp->ReadCStringFromMemory(location, (char*)buffer_sp->GetBytes(), 1024, error);
if (error.Fail())
return false;
if (data_read)
stream.Printf("@\"%s\"",(char*)buffer_sp->GetBytes());
return true;
}
else if (is_unicode)
{
uint64_t location = valobj_addr + ptr_size + 4 + (ptr_size == 8 ? 4 : 0);
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;
}
return ReadUTFBufferAndDumpToStream (location, process_sp, stream);
}
else if (is_special)
{
uint64_t location = valobj_addr + (ptr_size == 8 ? 12 : 8);
return ReadUTFBufferAndDumpToStream (location, process_sp, stream);
}
else if (is_inline)
{
uint64_t location = valobj_addr + ptr_size + 4 + (ptr_size == 8 ? 4 : 0);
if (!has_explicit_length)
location++;
lldb::DataBufferSP buffer_sp(new DataBufferHeap(1024,0));
size_t data_read = process_sp->ReadCStringFromMemory(location, (char*)buffer_sp->GetBytes(), 1024, error);
if (error.Fail())
return false;
if (data_read)
stream.Printf("@\"%s\"",(char*)buffer_sp->GetBytes());
return true;
}
else
{
uint64_t location = valobj_addr + ptr_size + 4 + (ptr_size == 8 ? 4 : 0);
location = process_sp->ReadPointerFromMemory(location, error);
if (error.Fail())
return false;
lldb::DataBufferSP buffer_sp(new DataBufferHeap(1024,0));
size_t data_read = process_sp->ReadCStringFromMemory(location, (char*)buffer_sp->GetBytes(), 1024, error);
if (error.Fail())
return false;
if (data_read)
stream.Printf("@\"%s\"",(char*)buffer_sp->GetBytes());
return true;
}
stream.Printf("class name = %s",class_name);
return true;
}
bool
lldb_private::formatters::RuntimeSpecificDescriptionSummaryProvider (ValueObject& valobj, Stream& stream)
{
stream.Printf("%s",valobj.GetObjectDescription());
return true;
}
lldb_private::formatters::NSArrayMSyntheticFrontEnd::NSArrayMSyntheticFrontEnd (lldb::ValueObjectSP valobj_sp) :
SyntheticChildrenFrontEnd(*valobj_sp.get()),
m_exe_ctx_ref(),
m_ptr_size(8),
m_data_32(NULL),
m_data_64(NULL)
{
if (valobj_sp)
{
m_id_type = ClangASTType(valobj_sp->GetClangAST(),valobj_sp->GetClangAST()->ObjCBuiltinIdTy.getAsOpaquePtr());
Update();
}
}
uint32_t
lldb_private::formatters::NSArrayMSyntheticFrontEnd::CalculateNumChildren ()
{
if (m_data_32)
return m_data_32->_used;
if (m_data_64)
return m_data_64->_used;
return 0;
}
lldb::ValueObjectSP
lldb_private::formatters::NSArrayMSyntheticFrontEnd::GetChildAtIndex (uint32_t idx)
{
if (!m_data_32 && !m_data_64)
return lldb::ValueObjectSP();
if (idx >= CalculateNumChildren())
return lldb::ValueObjectSP();
lldb::addr_t object_at_idx = (m_data_32 ? m_data_32->_data : m_data_64->_data);
object_at_idx += (idx * m_ptr_size);
StreamString idx_name;
idx_name.Printf("[%d]",idx);
lldb::ValueObjectSP retval_sp = ValueObject::CreateValueObjectFromAddress(idx_name.GetData(),
object_at_idx,
m_exe_ctx_ref,
m_id_type);
m_children.push_back(retval_sp);
return retval_sp;
}
bool
lldb_private::formatters::NSArrayMSyntheticFrontEnd::Update()
{
m_children.clear();
ValueObjectSP valobj_sp = m_backend.GetSP();
m_ptr_size = 0;
delete m_data_32;
m_data_32 = NULL;
delete m_data_64;
m_data_64 = NULL;
if (valobj_sp->IsDynamic())
valobj_sp = valobj_sp->GetStaticValue();
if (!valobj_sp)
return false;
m_exe_ctx_ref = valobj_sp->GetExecutionContextRef();
Error error;
if (valobj_sp->IsPointerType())
{
valobj_sp = valobj_sp->Dereference(error);
if (error.Fail() || !valobj_sp)
return false;
}
error.Clear();
lldb::ProcessSP process_sp(valobj_sp->GetProcessSP());
if (!process_sp)
return false;
m_ptr_size = process_sp->GetAddressByteSize();
uint64_t data_location = valobj_sp->GetAddressOf() + m_ptr_size;
if (m_ptr_size == 4)
{
m_data_32 = new DataDescriptor_32();
process_sp->ReadMemory (data_location, m_data_32, sizeof(DataDescriptor_32), error);
}
else
{
m_data_64 = new DataDescriptor_64();
process_sp->ReadMemory (data_location, m_data_64, sizeof(DataDescriptor_64), error);
}
if (error.Fail())
return false;
return false;
}
bool
lldb_private::formatters::NSArrayMSyntheticFrontEnd::MightHaveChildren ()
{
if (!m_data_32 && !m_data_64)
Update ();
return CalculateNumChildren();
}
static uint32_t
ExtractIndexFromString (const char* item_name)
{
if (!item_name || !*item_name)
return UINT32_MAX;
if (*item_name != '[')
return UINT32_MAX;
item_name++;
uint32_t idx = 0;
while(*item_name)
{
char x = *item_name;
if (x == ']')
break;
if (x < '0' || x > '9')
return UINT32_MAX;
idx = 10*idx + (x-'0');
item_name++;
}
return idx;
}
uint32_t
lldb_private::formatters::NSArrayMSyntheticFrontEnd::GetIndexOfChildWithName (const ConstString &name)
{
if (!m_data_32 && !m_data_64)
return UINT32_MAX;
const char* item_name = name.GetCString();
uint32_t idx = ExtractIndexFromString(item_name);
if (idx < UINT32_MAX && idx >= CalculateNumChildren())
return UINT32_MAX;
return idx;
}
lldb_private::formatters::NSArrayMSyntheticFrontEnd::~NSArrayMSyntheticFrontEnd ()
{
delete m_data_32;
m_data_32 = NULL;
delete m_data_64;
m_data_64 = NULL;
}
lldb_private::formatters::NSArrayISyntheticFrontEnd::NSArrayISyntheticFrontEnd (lldb::ValueObjectSP valobj_sp) :
SyntheticChildrenFrontEnd(*valobj_sp.get()),
m_exe_ctx_ref(),
m_ptr_size(8),
m_items(0),
m_data_ptr(0)
{
if (valobj_sp)
{
m_id_type = ClangASTType(valobj_sp->GetClangAST(),valobj_sp->GetClangAST()->ObjCBuiltinIdTy.getAsOpaquePtr());
Update();
}
}
lldb_private::formatters::NSArrayISyntheticFrontEnd::~NSArrayISyntheticFrontEnd ()
{
}
uint32_t
lldb_private::formatters::NSArrayISyntheticFrontEnd::GetIndexOfChildWithName (const ConstString &name)
{
const char* item_name = name.GetCString();
uint32_t idx = ExtractIndexFromString(item_name);
if (idx < UINT32_MAX && idx >= CalculateNumChildren())
return UINT32_MAX;
return idx;
}
uint32_t
lldb_private::formatters::NSArrayISyntheticFrontEnd::CalculateNumChildren ()
{
return m_items;
}
bool
lldb_private::formatters::NSArrayISyntheticFrontEnd::Update()
{
m_ptr_size = 0;
m_items = 0;
m_data_ptr = 0;
m_children.clear();
ValueObjectSP valobj_sp = m_backend.GetSP();
if (valobj_sp->IsDynamic())
valobj_sp = valobj_sp->GetStaticValue();
if (!valobj_sp)
return false;
m_exe_ctx_ref = valobj_sp->GetExecutionContextRef();
Error error;
if (valobj_sp->IsPointerType())
{
valobj_sp = valobj_sp->Dereference(error);
if (error.Fail() || !valobj_sp)
return false;
}
error.Clear();
lldb::ProcessSP process_sp(valobj_sp->GetProcessSP());
if (!process_sp)
return false;
m_ptr_size = process_sp->GetAddressByteSize();
uint64_t data_location = valobj_sp->GetAddressOf() + m_ptr_size;
m_items = process_sp->ReadPointerFromMemory(data_location, error);
if (error.Fail())
return false;
m_data_ptr = data_location+m_ptr_size;
return false;
}
bool
lldb_private::formatters::NSArrayISyntheticFrontEnd::MightHaveChildren ()
{
if (!m_data_ptr)
Update ();
return CalculateNumChildren();
}
lldb::ValueObjectSP
lldb_private::formatters::NSArrayISyntheticFrontEnd::GetChildAtIndex (uint32_t idx)
{
if (idx >= CalculateNumChildren())
return lldb::ValueObjectSP();
lldb::addr_t object_at_idx = m_data_ptr;
object_at_idx += (idx * m_ptr_size);
ProcessSP process_sp = m_exe_ctx_ref.GetProcessSP();
if (!process_sp)
return lldb::ValueObjectSP();
Error error;
object_at_idx = process_sp->ReadPointerFromMemory(object_at_idx, error);
if (error.Fail())
return lldb::ValueObjectSP();
StreamString expr;
expr.Printf("(id)%llu",object_at_idx);
StreamString idx_name;
idx_name.Printf("[%d]",idx);
lldb::ValueObjectSP retval_sp = ValueObject::CreateValueObjectFromExpression(idx_name.GetData(), expr.GetData(), m_exe_ctx_ref);
m_children.push_back(retval_sp);
return retval_sp;
}
SyntheticChildrenFrontEnd* lldb_private::formatters::NSArraySyntheticFrontEndCreator (CXXSyntheticChildren*, lldb::ValueObjectSP valobj_sp)
{
lldb::ProcessSP process_sp (valobj_sp->GetProcessSP());
if (!process_sp)
return NULL;
ObjCLanguageRuntime *runtime = (ObjCLanguageRuntime*)process_sp->GetLanguageRuntime(lldb::eLanguageTypeObjC);
if (!runtime)
return NULL;
if (!valobj_sp->IsPointerType())
{
Error error;
valobj_sp = valobj_sp->AddressOf(error);
if (error.Fail() || !valobj_sp)
return NULL;
}
ObjCLanguageRuntime::ClassDescriptorSP descriptor(runtime->GetClassDescriptor(*valobj_sp.get()));
if (!descriptor.get() || !descriptor->IsValid())
return NULL;
const char* class_name = descriptor->GetClassName().GetCString();
if (!class_name || !*class_name)
return NULL;
if (!strcmp(class_name,"__NSArrayI"))
{
return (new NSArrayISyntheticFrontEnd(valobj_sp));
}
else if (!strcmp(class_name,"__NSArrayM"))
{
return (new NSArrayMSyntheticFrontEnd(valobj_sp));
}
else
{
return (new NSArrayCodeRunningSyntheticFrontEnd(valobj_sp));
}
}
lldb_private::formatters::NSArrayCodeRunningSyntheticFrontEnd::NSArrayCodeRunningSyntheticFrontEnd (lldb::ValueObjectSP valobj_sp) :
SyntheticChildrenFrontEnd(*valobj_sp.get())
{}
uint32_t
lldb_private::formatters::NSArrayCodeRunningSyntheticFrontEnd::CalculateNumChildren ()
{
uint64_t count = 0;
if (ExtractValueFromObjCExpression(m_backend, "int", "count", count))
return count;
return 0;
}
lldb::ValueObjectSP
lldb_private::formatters::NSArrayCodeRunningSyntheticFrontEnd::GetChildAtIndex (uint32_t idx)
{
StreamString idx_name;
idx_name.Printf("[%d]",idx);
lldb::ValueObjectSP valobj_sp = CallSelectorOnObject(m_backend,"id","objectAtIndex:",idx);
if (valobj_sp)
valobj_sp->SetName(ConstString(idx_name.GetData()));
return valobj_sp;
}
bool
lldb_private::formatters::NSArrayCodeRunningSyntheticFrontEnd::Update()
{
return false;
}
bool
lldb_private::formatters::NSArrayCodeRunningSyntheticFrontEnd::MightHaveChildren ()
{
return CalculateNumChildren() > 0;
}
uint32_t
lldb_private::formatters::NSArrayCodeRunningSyntheticFrontEnd::GetIndexOfChildWithName (const ConstString &name)
{
return 0;
}
lldb_private::formatters::NSArrayCodeRunningSyntheticFrontEnd::~NSArrayCodeRunningSyntheticFrontEnd ()
{}
SyntheticChildrenFrontEnd* lldb_private::formatters::NSDictionarySyntheticFrontEndCreator (CXXSyntheticChildren*, lldb::ValueObjectSP valobj_sp)
{
lldb::ProcessSP process_sp (valobj_sp->GetProcessSP());
if (!process_sp)
return NULL;
ObjCLanguageRuntime *runtime = (ObjCLanguageRuntime*)process_sp->GetLanguageRuntime(lldb::eLanguageTypeObjC);
if (!runtime)
return NULL;
if (!valobj_sp->IsPointerType())
{
Error error;
valobj_sp = valobj_sp->AddressOf(error);
if (error.Fail() || !valobj_sp)
return NULL;
}
ObjCLanguageRuntime::ClassDescriptorSP descriptor(runtime->GetClassDescriptor(*valobj_sp.get()));
if (!descriptor.get() || !descriptor->IsValid())
return NULL;
const char* class_name = descriptor->GetClassName().GetCString();
if (!class_name || !*class_name)
return NULL;
if (!strcmp(class_name,"__NSDictionaryI"))
{
return (new NSDictionaryISyntheticFrontEnd(valobj_sp));
}
else if (!strcmp(class_name,"__NSDictionaryM"))
{
return (new NSDictionaryMSyntheticFrontEnd(valobj_sp));
}
else
{
return (new NSDictionaryCodeRunningSyntheticFrontEnd(valobj_sp));
}
}
lldb_private::formatters::NSDictionaryCodeRunningSyntheticFrontEnd::NSDictionaryCodeRunningSyntheticFrontEnd (lldb::ValueObjectSP valobj_sp) :
SyntheticChildrenFrontEnd(*valobj_sp.get())
{}
uint32_t
lldb_private::formatters::NSDictionaryCodeRunningSyntheticFrontEnd::CalculateNumChildren ()
{
uint64_t count = 0;
if (ExtractValueFromObjCExpression(m_backend, "int", "count", count))
return count;
return 0;
}
lldb::ValueObjectSP
lldb_private::formatters::NSDictionaryCodeRunningSyntheticFrontEnd::GetChildAtIndex (uint32_t idx)
{
StreamString idx_name;
idx_name.Printf("[%d]",idx);
StreamString valobj_expr_path;
m_backend.GetExpressionPath(valobj_expr_path, false);
StreamString key_fetcher_expr;
key_fetcher_expr.Printf("(id)[(NSArray*)[%s allKeys] objectAtIndex:%d]",valobj_expr_path.GetData(),idx);
StreamString value_fetcher_expr;
value_fetcher_expr.Printf("(id)[%s objectForKey:%s]",valobj_expr_path.GetData(),key_fetcher_expr.GetData());
StreamString object_fetcher_expr;
object_fetcher_expr.Printf("struct __lldb_autogen_nspair { id key; id value; } _lldb_valgen_item; _lldb_valgen_item.key = %s; _lldb_valgen_item.value = %s; _lldb_valgen_item;",key_fetcher_expr.GetData(),value_fetcher_expr.GetData());
lldb::ValueObjectSP child_sp;
m_backend.GetTargetSP()->EvaluateExpression(object_fetcher_expr.GetData(), m_backend.GetFrameSP().get(), child_sp,
EvaluateExpressionOptions().SetKeepInMemory(true));
if (child_sp)
child_sp->SetName(ConstString(idx_name.GetData()));
return child_sp;
}
bool
lldb_private::formatters::NSDictionaryCodeRunningSyntheticFrontEnd::Update()
{
return false;
}
bool
lldb_private::formatters::NSDictionaryCodeRunningSyntheticFrontEnd::MightHaveChildren ()
{
return CalculateNumChildren() > 0;
}
uint32_t
lldb_private::formatters::NSDictionaryCodeRunningSyntheticFrontEnd::GetIndexOfChildWithName (const ConstString &name)
{
return 0;
}
lldb_private::formatters::NSDictionaryCodeRunningSyntheticFrontEnd::~NSDictionaryCodeRunningSyntheticFrontEnd ()
{}
lldb_private::formatters::NSDictionaryISyntheticFrontEnd::NSDictionaryISyntheticFrontEnd (lldb::ValueObjectSP valobj_sp) :
SyntheticChildrenFrontEnd(*valobj_sp.get()),
m_exe_ctx_ref(),
m_ptr_size(8),
m_data_32(NULL),
m_data_64(NULL)
{
if (valobj_sp)
Update();
}
lldb_private::formatters::NSDictionaryISyntheticFrontEnd::~NSDictionaryISyntheticFrontEnd ()
{
delete m_data_32;
m_data_32 = NULL;
delete m_data_64;
m_data_64 = NULL;
}
uint32_t
lldb_private::formatters::NSDictionaryISyntheticFrontEnd::GetIndexOfChildWithName (const ConstString &name)
{
const char* item_name = name.GetCString();
uint32_t idx = ExtractIndexFromString(item_name);
if (idx < UINT32_MAX && idx >= CalculateNumChildren())
return UINT32_MAX;
return idx;
}
uint32_t
lldb_private::formatters::NSDictionaryISyntheticFrontEnd::CalculateNumChildren ()
{
if (!m_data_32 && !m_data_64)
return 0;
return (m_data_32 ? m_data_32->_used : m_data_64->_used);
}
bool
lldb_private::formatters::NSDictionaryISyntheticFrontEnd::Update()
{
m_children.clear();
delete m_data_32;
m_data_32 = NULL;
delete m_data_64;
m_data_64 = NULL;
m_ptr_size = 0;
ValueObjectSP valobj_sp = m_backend.GetSP();
if (!valobj_sp)
return false;
if (valobj_sp->IsDynamic())
valobj_sp = valobj_sp->GetStaticValue();
if (!valobj_sp)
return false;
m_exe_ctx_ref = valobj_sp->GetExecutionContextRef();
Error error;
if (valobj_sp->IsPointerType())
{
valobj_sp = valobj_sp->Dereference(error);
if (error.Fail() || !valobj_sp)
return false;
}
error.Clear();
lldb::ProcessSP process_sp(valobj_sp->GetProcessSP());
if (!process_sp)
return false;
m_ptr_size = process_sp->GetAddressByteSize();
uint64_t data_location = valobj_sp->GetAddressOf() + m_ptr_size;
if (m_ptr_size == 4)
{
m_data_32 = new DataDescriptor_32();
process_sp->ReadMemory (data_location, m_data_32, sizeof(DataDescriptor_32), error);
}
else
{
m_data_64 = new DataDescriptor_64();
process_sp->ReadMemory (data_location, m_data_64, sizeof(DataDescriptor_64), error);
}
if (error.Fail())
return false;
m_data_ptr = data_location + m_ptr_size;
return false;
}
bool
lldb_private::formatters::NSDictionaryISyntheticFrontEnd::MightHaveChildren ()
{
if (!m_data_32 && !m_data_64)
Update ();
return CalculateNumChildren();
}
lldb::ValueObjectSP
lldb_private::formatters::NSDictionaryISyntheticFrontEnd::GetChildAtIndex (uint32_t idx)
{
uint32_t num_children = CalculateNumChildren();
if (idx >= num_children)
return lldb::ValueObjectSP();
if (m_children.empty())
{
// do the scan phase
lldb::addr_t key_at_idx = 0, val_at_idx = 0;
uint32_t tries = 0;
uint32_t test_idx = 0;
while(tries < num_children)
{
key_at_idx = m_data_ptr + (2*test_idx * m_ptr_size);
val_at_idx = key_at_idx + m_ptr_size;
ProcessSP process_sp = m_exe_ctx_ref.GetProcessSP();
if (!process_sp)
return lldb::ValueObjectSP();
Error error;
key_at_idx = process_sp->ReadPointerFromMemory(key_at_idx, error);
if (error.Fail())
return lldb::ValueObjectSP();
val_at_idx = process_sp->ReadPointerFromMemory(val_at_idx, error);
if (error.Fail())
return lldb::ValueObjectSP();
test_idx++;
if (!key_at_idx || !val_at_idx)
continue;
tries++;
DictionaryItemDescriptor descriptor = {key_at_idx,val_at_idx,lldb::ValueObjectSP()};
m_children.push_back(descriptor);
}
}
if (idx >= m_children.size()) // should never happen
return lldb::ValueObjectSP();
DictionaryItemDescriptor &dict_item = m_children[idx];
if (!dict_item.valobj_sp)
{
// make the new ValueObject
StreamString expr;
expr.Printf("struct __lldb_autogen_nspair { id key; id value; } _lldb_valgen_item; _lldb_valgen_item.key = (id)%llu ; _lldb_valgen_item.value = (id)%llu; _lldb_valgen_item;",dict_item.key_ptr,dict_item.val_ptr);
StreamString idx_name;
idx_name.Printf("[%d]",idx);
dict_item.valobj_sp = ValueObject::CreateValueObjectFromExpression(idx_name.GetData(), expr.GetData(), m_exe_ctx_ref);
}
return dict_item.valobj_sp;
}
lldb_private::formatters::NSDictionaryMSyntheticFrontEnd::NSDictionaryMSyntheticFrontEnd (lldb::ValueObjectSP valobj_sp) :
SyntheticChildrenFrontEnd(*valobj_sp.get()),
m_exe_ctx_ref(),
m_ptr_size(8),
m_data_32(NULL),
m_data_64(NULL)
{
if (valobj_sp)
Update ();
}
lldb_private::formatters::NSDictionaryMSyntheticFrontEnd::~NSDictionaryMSyntheticFrontEnd ()
{
delete m_data_32;
m_data_32 = NULL;
delete m_data_64;
m_data_64 = NULL;
}
uint32_t
lldb_private::formatters::NSDictionaryMSyntheticFrontEnd::GetIndexOfChildWithName (const ConstString &name)
{
const char* item_name = name.GetCString();
uint32_t idx = ExtractIndexFromString(item_name);
if (idx < UINT32_MAX && idx >= CalculateNumChildren())
return UINT32_MAX;
return idx;
}
uint32_t
lldb_private::formatters::NSDictionaryMSyntheticFrontEnd::CalculateNumChildren ()
{
if (!m_data_32 && !m_data_64)
return 0;
return (m_data_32 ? m_data_32->_used : m_data_64->_used);
}
bool
lldb_private::formatters::NSDictionaryMSyntheticFrontEnd::Update()
{
m_children.clear();
ValueObjectSP valobj_sp = m_backend.GetSP();
m_ptr_size = 0;
delete m_data_32;
m_data_32 = NULL;
delete m_data_64;
m_data_64 = NULL;
if (!valobj_sp)
return false;
if (valobj_sp->IsDynamic())
valobj_sp = valobj_sp->GetStaticValue();
if (!valobj_sp)
return false;
m_exe_ctx_ref = valobj_sp->GetExecutionContextRef();
Error error;
if (valobj_sp->IsPointerType())
{
valobj_sp = valobj_sp->Dereference(error);
if (error.Fail() || !valobj_sp)
return false;
}
error.Clear();
lldb::ProcessSP process_sp(valobj_sp->GetProcessSP());
if (!process_sp)
return false;
m_ptr_size = process_sp->GetAddressByteSize();
uint64_t data_location = valobj_sp->GetAddressOf() + m_ptr_size;
if (m_ptr_size == 4)
{
m_data_32 = new DataDescriptor_32();
process_sp->ReadMemory (data_location, m_data_32, sizeof(DataDescriptor_32), error);
}
else
{
m_data_64 = new DataDescriptor_64();
process_sp->ReadMemory (data_location, m_data_64, sizeof(DataDescriptor_64), error);
}
if (error.Fail())
return false;
return false;
}
bool
lldb_private::formatters::NSDictionaryMSyntheticFrontEnd::MightHaveChildren ()
{
if (!m_data_32 && !m_data_64)
Update ();
return CalculateNumChildren();
}
lldb::ValueObjectSP
lldb_private::formatters::NSDictionaryMSyntheticFrontEnd::GetChildAtIndex (uint32_t idx)
{
lldb::addr_t m_keys_ptr = (m_data_32 ? m_data_32->_keys_addr : m_data_64->_keys_addr);
lldb::addr_t m_values_ptr = (m_data_32 ? m_data_32->_objs_addr : m_data_64->_objs_addr);
uint32_t num_children = CalculateNumChildren();
if (idx >= num_children)
return lldb::ValueObjectSP();
if (m_children.empty())
{
// do the scan phase
lldb::addr_t key_at_idx = 0, val_at_idx = 0;
uint32_t tries = 0;
uint32_t test_idx = 0;
while(tries < num_children)
{
key_at_idx = m_keys_ptr + (test_idx * m_ptr_size);
val_at_idx = m_values_ptr + (test_idx * m_ptr_size);;
ProcessSP process_sp = m_exe_ctx_ref.GetProcessSP();
if (!process_sp)
return lldb::ValueObjectSP();
Error error;
key_at_idx = process_sp->ReadPointerFromMemory(key_at_idx, error);
if (error.Fail())
return lldb::ValueObjectSP();
val_at_idx = process_sp->ReadPointerFromMemory(val_at_idx, error);
if (error.Fail())
return lldb::ValueObjectSP();
test_idx++;
if (!key_at_idx || !val_at_idx)
continue;
tries++;
DictionaryItemDescriptor descriptor = {key_at_idx,val_at_idx,lldb::ValueObjectSP()};
m_children.push_back(descriptor);
}
}
if (idx >= m_children.size()) // should never happen
return lldb::ValueObjectSP();
DictionaryItemDescriptor &dict_item = m_children[idx];
if (!dict_item.valobj_sp)
{
// make the new ValueObject
StreamString expr;
expr.Printf("struct __lldb_autogen_nspair { id key; id value; } _lldb_valgen_item; _lldb_valgen_item.key = (id)%llu ; _lldb_valgen_item.value = (id)%llu; _lldb_valgen_item;",dict_item.key_ptr,dict_item.val_ptr);
StreamString idx_name;
idx_name.Printf("[%d]",idx);
dict_item.valobj_sp = ValueObject::CreateValueObjectFromExpression(idx_name.GetData(), expr.GetData(), m_exe_ctx_ref);
}
return dict_item.valobj_sp;
}
template bool
lldb_private::formatters::NSDictionarySummaryProvider<true> (ValueObject&, Stream&) ;
template bool
lldb_private::formatters::NSDictionarySummaryProvider<false> (ValueObject&, Stream&) ;
template bool
lldb_private::formatters::NSDataSummaryProvider<true> (ValueObject&, Stream&) ;
template bool
lldb_private::formatters::NSDataSummaryProvider<false> (ValueObject&, Stream&) ;
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