Update LLDB snapshot to upstream r216948 (git 50f7fe44)

This is approximately "LLDB 3.5" although with a little bit of skew,
and will go along with the Clang 3.5 import.

Sponsored by:	DARPA, AFRL

1 files changed, 359 insertions, 25 deletions

diff --git a/contrib/llvm/tools/lldb/source/DataFormatters/NSArray.cpp b/contrib/llvm/tools/lldb/source/DataFormatters/NSArray.cpp
index d8ee9bf..1663538 100644
--- a/contrib/llvm/tools/lldb/source/DataFormatters/NSArray.cpp
+++ b/contrib/llvm/tools/lldb/source/DataFormatters/NSArray.cpp
@@ -19,12 +19,214 @@
 #include "lldb/Host/Endian.h"
 #include "lldb/Symbol/ClangASTContext.h"
 #include "lldb/Target/ObjCLanguageRuntime.h"
+#include "Plugins/LanguageRuntime/ObjC/AppleObjCRuntime/AppleObjCRuntime.h"
 #include "lldb/Target/Target.h"
 
+#include "clang/AST/ASTContext.h"
+
 using namespace lldb;
 using namespace lldb_private;
 using namespace lldb_private::formatters;
 
+namespace  lldb_private {
+    namespace formatters {
+        class NSArrayMSyntheticFrontEnd : public SyntheticChildrenFrontEnd
+        {
+        public:
+            NSArrayMSyntheticFrontEnd (lldb::ValueObjectSP valobj_sp);
+            
+            virtual size_t
+            CalculateNumChildren ();
+            
+            virtual lldb::ValueObjectSP
+            GetChildAtIndex (size_t idx);
+            
+            virtual bool
+            Update() = 0;
+            
+            virtual bool
+            MightHaveChildren ();
+            
+            virtual size_t
+            GetIndexOfChildWithName (const ConstString &name);
+            
+            virtual
+            ~NSArrayMSyntheticFrontEnd () {}
+            
+        protected:
+            virtual lldb::addr_t
+            GetDataAddress () = 0;
+            
+            virtual uint64_t
+            GetUsedCount () = 0;
+            
+            virtual uint64_t
+            GetOffset () = 0;
+            
+            virtual uint64_t
+            GetSize () = 0;
+            
+            ExecutionContextRef m_exe_ctx_ref;
+            uint8_t m_ptr_size;
+            ClangASTType m_id_type;
+            std::vector<lldb::ValueObjectSP> m_children;
+        };
+        
+        class NSArrayMSyntheticFrontEnd_109 : public NSArrayMSyntheticFrontEnd
+        {
+        private:
+            struct DataDescriptor_32
+            {
+                uint32_t _used;
+                uint32_t _priv1 : 2 ;
+                uint32_t _size : 30;
+                uint32_t _priv2 : 2;
+                uint32_t _offset : 30;
+                uint32_t _priv3;
+                uint32_t _data;
+            };
+            struct DataDescriptor_64
+            {
+                uint64_t _used;
+                uint64_t _priv1 : 2 ;
+                uint64_t _size : 62;
+                uint64_t _priv2 : 2;
+                uint64_t _offset : 62;
+                uint32_t _priv3;
+                uint64_t _data;
+            };
+        public:
+            NSArrayMSyntheticFrontEnd_109 (lldb::ValueObjectSP valobj_sp);
+            
+            virtual bool
+            Update();
+            
+            virtual
+            ~NSArrayMSyntheticFrontEnd_109 ();
+            
+        protected:
+            virtual lldb::addr_t
+            GetDataAddress ();
+            
+            virtual uint64_t
+            GetUsedCount ();
+            
+            virtual uint64_t
+            GetOffset ();
+            
+            virtual uint64_t
+            GetSize ();
+            
+        private:
+            DataDescriptor_32 *m_data_32;
+            DataDescriptor_64 *m_data_64;
+        };
+        
+        class NSArrayMSyntheticFrontEnd_1010 : public NSArrayMSyntheticFrontEnd
+        {
+        private:
+            struct DataDescriptor_32
+            {
+                uint32_t _used;
+                uint32_t _offset;
+                uint32_t _size : 28;
+                uint64_t _priv1 : 4;
+                uint32_t _priv2;
+                uint32_t _data;
+            };
+            struct DataDescriptor_64
+            {
+                uint64_t _used;
+                uint64_t _offset;
+                uint64_t _size : 60;
+                uint64_t _priv1 : 4;
+                uint32_t _priv2;
+                uint64_t _data;
+            };
+        public:
+            NSArrayMSyntheticFrontEnd_1010 (lldb::ValueObjectSP valobj_sp);
+            
+            virtual bool
+            Update();
+            
+            virtual
+            ~NSArrayMSyntheticFrontEnd_1010 ();
+            
+        protected:
+            virtual lldb::addr_t
+            GetDataAddress ();
+            
+            virtual uint64_t
+            GetUsedCount ();
+            
+            virtual uint64_t
+            GetOffset ();
+            
+            virtual uint64_t
+            GetSize ();
+            
+        private:
+            DataDescriptor_32 *m_data_32;
+            DataDescriptor_64 *m_data_64;
+        };
+        
+        class NSArrayISyntheticFrontEnd : public SyntheticChildrenFrontEnd
+        {
+        public:
+            NSArrayISyntheticFrontEnd (lldb::ValueObjectSP valobj_sp);
+            
+            virtual size_t
+            CalculateNumChildren ();
+            
+            virtual lldb::ValueObjectSP
+            GetChildAtIndex (size_t idx);
+            
+            virtual bool
+            Update();
+            
+            virtual bool
+            MightHaveChildren ();
+            
+            virtual size_t
+            GetIndexOfChildWithName (const ConstString &name);
+            
+            virtual
+            ~NSArrayISyntheticFrontEnd ();
+        private:
+            ExecutionContextRef m_exe_ctx_ref;
+            uint8_t m_ptr_size;
+            uint64_t m_items;
+            lldb::addr_t m_data_ptr;
+            ClangASTType m_id_type;
+            std::vector<lldb::ValueObjectSP> m_children;
+        };
+        
+        class NSArrayCodeRunningSyntheticFrontEnd : public SyntheticChildrenFrontEnd
+        {
+        public:
+            NSArrayCodeRunningSyntheticFrontEnd (lldb::ValueObjectSP valobj_sp);
+            
+            virtual size_t
+            CalculateNumChildren ();
+            
+            virtual lldb::ValueObjectSP
+            GetChildAtIndex (size_t idx);
+            
+            virtual bool
+            Update();
+            
+            virtual bool
+            MightHaveChildren ();
+            
+            virtual size_t
+            GetIndexOfChildWithName (const ConstString &name);
+            
+            virtual
+            ~NSArrayCodeRunningSyntheticFrontEnd ();
+        };
+    }
+}
+
 bool
 lldb_private::formatters::NSArraySummaryProvider (ValueObject& valobj, Stream& stream)
 {
@@ -90,45 +292,55 @@ lldb_private::formatters::NSArraySummaryProvider (ValueObject& valobj, Stream& s
 }
 
 lldb_private::formatters::NSArrayMSyntheticFrontEnd::NSArrayMSyntheticFrontEnd (lldb::ValueObjectSP valobj_sp) :
-    SyntheticChildrenFrontEnd(*valobj_sp.get()),
+SyntheticChildrenFrontEnd(*valobj_sp),
     m_exe_ctx_ref(),
     m_ptr_size(8),
-    m_data_32(NULL),
-    m_data_64(NULL)
+m_id_type(),
+m_children()
 {
     if (valobj_sp)
     {
-        clang::ASTContext *ast = valobj_sp->GetClangType().GetASTContext();
+        clang::ASTContext *ast = valobj_sp->GetExecutionContextRef().GetTargetSP()->GetScratchClangASTContext()->getASTContext();
         if (ast)
             m_id_type = ClangASTType(ast, ast->ObjCBuiltinIdTy);
+        if (valobj_sp->GetProcessSP())
+            m_ptr_size = valobj_sp->GetProcessSP()->GetAddressByteSize();
     }
 }
 
+lldb_private::formatters::NSArrayMSyntheticFrontEnd_109::NSArrayMSyntheticFrontEnd_109 (lldb::ValueObjectSP valobj_sp) :
+NSArrayMSyntheticFrontEnd(valobj_sp),
+m_data_32(NULL),
+m_data_64(NULL)
+{
+}
+
+lldb_private::formatters::NSArrayMSyntheticFrontEnd_1010::NSArrayMSyntheticFrontEnd_1010 (lldb::ValueObjectSP valobj_sp) :
+NSArrayMSyntheticFrontEnd(valobj_sp),
+m_data_32(NULL),
+m_data_64(NULL)
+{
+}
+
 size_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;
+    return GetUsedCount();
 }
 
 lldb::ValueObjectSP
 lldb_private::formatters::NSArrayMSyntheticFrontEnd::GetChildAtIndex (size_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);
+    lldb::addr_t object_at_idx = GetDataAddress();
     size_t pyhs_idx = idx;
-    pyhs_idx += (m_data_32 ? m_data_32->offset : m_data_64->offset);
-    if ((m_data_32 ? m_data_32->_size : m_data_64->_size) <= pyhs_idx)
-        pyhs_idx -= (m_data_32 ? m_data_32->_size : m_data_64->_size);
+    pyhs_idx += GetOffset();
+    if (GetSize() <= pyhs_idx)
+        pyhs_idx -= GetSize();
     object_at_idx += (pyhs_idx * m_ptr_size);
     StreamString idx_name;
-    idx_name.Printf("[%zu]",idx);
+    idx_name.Printf("[%" PRIu64 "]", (uint64_t)idx);
     lldb::ValueObjectSP retval_sp = ValueObject::CreateValueObjectFromAddress(idx_name.GetData(),
                                                                               object_at_idx,
                                                                               m_exe_ctx_ref,
@@ -138,7 +350,42 @@ lldb_private::formatters::NSArrayMSyntheticFrontEnd::GetChildAtIndex (size_t idx
 }
 
 bool
-lldb_private::formatters::NSArrayMSyntheticFrontEnd::Update()
+lldb_private::formatters::NSArrayMSyntheticFrontEnd_109::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;
+    m_exe_ctx_ref = valobj_sp->GetExecutionContextRef();
+    Error error;
+    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->GetValueAsUnsigned(0) + 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_1010::Update()
 {
     m_children.clear();
     ValueObjectSP valobj_sp = m_backend.GetSP();
@@ -181,8 +428,6 @@ lldb_private::formatters::NSArrayMSyntheticFrontEnd::MightHaveChildren ()
 size_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())
@@ -190,7 +435,87 @@ lldb_private::formatters::NSArrayMSyntheticFrontEnd::GetIndexOfChildWithName (co
     return idx;
 }
 
-lldb_private::formatters::NSArrayMSyntheticFrontEnd::~NSArrayMSyntheticFrontEnd ()
+lldb::addr_t
+lldb_private::formatters::NSArrayMSyntheticFrontEnd_109::GetDataAddress ()
+{
+    if (!m_data_32 && !m_data_64)
+        return LLDB_INVALID_ADDRESS;
+    return m_data_32 ? m_data_32->_data :
+    m_data_64->_data;
+}
+
+uint64_t
+lldb_private::formatters::NSArrayMSyntheticFrontEnd_109::GetUsedCount ()
+{
+    if (!m_data_32 && !m_data_64)
+        return 0;
+    return m_data_32 ? m_data_32->_used :
+    m_data_64->_used;
+}
+
+uint64_t
+lldb_private::formatters::NSArrayMSyntheticFrontEnd_109::GetOffset ()
+{
+    if (!m_data_32 && !m_data_64)
+        return 0;
+    return m_data_32 ? m_data_32->_offset :
+    m_data_64->_offset;
+}
+
+uint64_t
+lldb_private::formatters::NSArrayMSyntheticFrontEnd_109::GetSize ()
+{
+    if (!m_data_32 && !m_data_64)
+        return 0;
+    return m_data_32 ? m_data_32->_size :
+    m_data_64->_size;
+}
+
+lldb_private::formatters::NSArrayMSyntheticFrontEnd_109::~NSArrayMSyntheticFrontEnd_109 ()
+{
+    delete m_data_32;
+    m_data_32 = NULL;
+    delete m_data_64;
+    m_data_64 = NULL;
+}
+
+lldb::addr_t
+lldb_private::formatters::NSArrayMSyntheticFrontEnd_1010::GetDataAddress ()
+{
+    if (!m_data_32 && !m_data_64)
+        return LLDB_INVALID_ADDRESS;
+    return m_data_32 ? m_data_32->_data :
+    m_data_64->_data;
+}
+
+uint64_t
+lldb_private::formatters::NSArrayMSyntheticFrontEnd_1010::GetUsedCount ()
+{
+    if (!m_data_32 && !m_data_64)
+        return 0;
+    return m_data_32 ? m_data_32->_used :
+    m_data_64->_used;
+}
+
+uint64_t
+lldb_private::formatters::NSArrayMSyntheticFrontEnd_1010::GetOffset ()
+{
+    if (!m_data_32 && !m_data_64)
+        return 0;
+    return m_data_32 ? m_data_32->_offset :
+    m_data_64->_offset;
+}
+
+uint64_t
+lldb_private::formatters::NSArrayMSyntheticFrontEnd_1010::GetSize ()
+{
+    if (!m_data_32 && !m_data_64)
+        return 0;
+    return m_data_32 ? m_data_32->_size :
+    m_data_64->_size;
+}
+
+lldb_private::formatters::NSArrayMSyntheticFrontEnd_1010::~NSArrayMSyntheticFrontEnd_1010 ()
 {
     delete m_data_32;
     m_data_32 = NULL;
@@ -278,7 +603,7 @@ lldb_private::formatters::NSArrayISyntheticFrontEnd::GetChildAtIndex (size_t idx
     if (error.Fail())
         return lldb::ValueObjectSP();
     StreamString idx_name;
-    idx_name.Printf("[%zu]",idx);
+    idx_name.Printf("[%" PRIu64 "]", (uint64_t)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;
@@ -286,14 +611,20 @@ lldb_private::formatters::NSArrayISyntheticFrontEnd::GetChildAtIndex (size_t idx
 
 SyntheticChildrenFrontEnd* lldb_private::formatters::NSArraySyntheticFrontEndCreator (CXXSyntheticChildren*, lldb::ValueObjectSP valobj_sp)
 {
+    if (!valobj_sp)
+        return nullptr;
+    
     lldb::ProcessSP process_sp (valobj_sp->GetProcessSP());
     if (!process_sp)
         return NULL;
-    ObjCLanguageRuntime *runtime = (ObjCLanguageRuntime*)process_sp->GetLanguageRuntime(lldb::eLanguageTypeObjC);
+    AppleObjCRuntime *runtime = (AppleObjCRuntime*)process_sp->GetLanguageRuntime(lldb::eLanguageTypeObjC);
     if (!runtime)
         return NULL;
     
-    if (!valobj_sp->IsPointerType())
+    ClangASTType valobj_type(valobj_sp->GetClangType());
+    Flags flags(valobj_type.GetTypeInfo());
+    
+    if (flags.IsClear(ClangASTType::eTypeIsPointer))
     {
         Error error;
         valobj_sp = valobj_sp->AddressOf(error);
@@ -317,7 +648,10 @@ SyntheticChildrenFrontEnd* lldb_private::formatters::NSArraySyntheticFrontEndCre
     }
     else if (!strcmp(class_name,"__NSArrayM"))
     {
-        return (new NSArrayMSyntheticFrontEnd(valobj_sp));
+        if (runtime->GetFoundationVersion() >= 1100)
+            return (new NSArrayMSyntheticFrontEnd_1010(valobj_sp));
+        else
+            return (new NSArrayMSyntheticFrontEnd_109(valobj_sp));
     }
     else
     {
@@ -342,7 +676,7 @@ lldb::ValueObjectSP
 lldb_private::formatters::NSArrayCodeRunningSyntheticFrontEnd::GetChildAtIndex (size_t idx)
 {
     StreamString idx_name;
-    idx_name.Printf("[%zu]",idx);
+    idx_name.Printf("[%" PRIu64 "]", (uint64_t)idx);
     lldb::ValueObjectSP valobj_sp = CallSelectorOnObject(m_backend,"id","objectAtIndex:",idx);
     if (valobj_sp)
         valobj_sp->SetName(ConstString(idx_name.GetData()));