Debugger: Adjust to latest field changes

Change-Id: Ic4b3c8f0670a0d58e3d762ff0765862709901d2a
Reviewed-by: Christian Stenger <christian.stenger@qt.io>

share/qtcreator/debugger/cdbbridge.py

@@ -131,36 +131,35 @@ class Dumper(DumperBase):
             tdata.lbitsize = nativeType.bitsize()
             tdata.code = code
             self.registerType(typeId, tdata) # Prevent recursion in fields.
-            tdata.lfields = self.listFields(nativeType, self.Type(self, typeId))
+            if  code == TypeCodeStruct:
+                tdata.lfields = lambda value : \
+                    self.listFields(nativeType, value)
+                tdata.lalignment = lambda : \
+                    self.nativeStructAlignment(nativeType)
             tdata.templateArguments = self.listTemplateParameters(nativeType)
             self.registerType(typeId, tdata) # Fix up fields and template args
         return self.Type(self, typeId)
 
-    def listFields(self, nativeType, parentType):
-        fields = []
+    def listFields(self, nativeType, value):
+        if value.address() is None or value.address() == 0:
+            raise Exception("")
+        nativeValue = cdbext.createValue(value.address(), nativeType)
+        index = 0
+        nativeMember = nativeValue.childFromIndex(index)
+        while nativeMember is not None:
+            yield self.fromNativeValue(nativeMember)
+            index += 1
+            nativeMember = nativeValue.childFromIndex(index)
 
-        if not nativeType.code() == TypeCodeStruct:
-            return fields
-
-        nativeIndex = 0
-        nativeFields = nativeType.fields()
-        for nativeField in nativeFields:
-            field = self.Field(self)
-            fieldType = nativeField.type().unqualified()
-            if fieldType is None:
-                fieldType = FakeVoidType('void', self)
-            field.ltype = self.fromNativeType(fieldType)
-            field.parentType = parentType
-            field.name = nativeField.name()
-            field.isBaseClass = False
-            field.lbitpos = nativeField.bitpos()
-            field.lbitsize = nativeField.bitsize()
-            field.nativeIndex = nativeIndex
-            #warn("FIELD RESULT: %s" % field)
-            fields.append(field)
-            nativeIndex += 1
-
-        return fields
+    def nativeStructAlignment(self, nativeType):
+        #warn("NATIVE ALIGN FOR %s" % nativeType.name)
+        def handleItem(nativeFieldType, align):
+            a = self.fromNativeType(nativeFieldType).alignment()
+            return a if a > align else align
+        align = 1
+        for f in nativeType.fields():
+            align = handleItem(f.type(), align)
+        return align
 
     def listTemplateParameters(self, nativeType):
         targs = []

src/libs/qtcreatorcdbext/pycdbextmodule.cpp

@@ -27,6 +27,7 @@
 
 #include "extensioncontext.h"
 #include "symbolgroup.h"
+#include "symbolgroupvalue.h"
 
 #include "pyfield.h"
 #include "pystdoutredirect.h"
@@ -106,6 +107,57 @@ static PyObject *cdbext_readRawMemory(PyObject *, PyObject *args)
     return ret;
 }
 
+static PyObject *cdbext_createValue(PyObject *, PyObject *args)
+{
+    ULONG64 address = 0;
+    Type *type = 0;
+    if (!PyArg_ParseTuple(args, "KO", &address, &type))
+        Py_RETURN_NONE;
+
+    if (debugPyCdbextModule) {
+        DebugPrint() << "Create Value address: 0x" << std::hex << address
+                     << " type name: " << getTypeName(type->m_module, type->m_typeId);
+    }
+
+    ExtensionCommandContext *extCmdCtx = ExtensionCommandContext::instance();
+    CIDebugSymbols *symbols = extCmdCtx->symbols();
+
+    ULONG frame;
+    if (FAILED(symbols->GetCurrentScopeFrameIndex(&frame)))
+        Py_RETURN_NONE;
+
+    std::string errorMessage;
+    LocalsSymbolGroup *lsg = ExtensionContext::instance().symbolGroup(
+                symbols, extCmdCtx->threadId(), int(frame), &errorMessage);
+    if (!lsg)
+        Py_RETURN_NONE;
+
+    CIDebugSymbolGroup *dsg = lsg->debugSymbolGroup();
+    ULONG numberOfSymbols = 0;
+    dsg->GetNumberSymbols(&numberOfSymbols);
+    ULONG index = 0;
+    for (;index < numberOfSymbols; ++index) {
+        ULONG64 offset;
+        dsg->GetSymbolOffset(index, &offset);
+        if (offset == address) {
+            DEBUG_SYMBOL_PARAMETERS params;
+            if (SUCCEEDED(dsg->GetSymbolParameters(index, 1, &params))) {
+                if (params.TypeId == type->m_typeId && params.Module == type->m_module)
+                    break;
+            }
+        }
+    }
+
+    if (index >= numberOfSymbols) {
+        index = DEBUG_ANY_ID;
+        const std::string name = SymbolGroupValue::pointedToSymbolName(
+                    address, getTypeName(type->m_module, type->m_typeId));
+        if (FAILED(dsg->AddSymbol(name.c_str(), &index)))
+            Py_RETURN_NONE;
+    }
+    return createValue(index, dsg);
+}
+
 static PyMethodDef cdbextMethods[] = {
     {"parseAndEvaluate",    cdbext_parseAndEvaluate,    METH_VARARGS,
      "Returns value of expression or None if the expression can not be resolved"},
@@ -117,6 +169,8 @@ static PyMethodDef cdbextMethods[] = {
      "Returns the size of a pointer"},
     {"readRawMemory",       cdbext_readRawMemory,       METH_VARARGS,
      "Read a block of data from the virtual address space"},
+    {"createValue",         cdbext_createValue,         METH_VARARGS,
+     "Creates a value with the given type at the given address"},
     {NULL,                  NULL,               0,
      NULL}        /* Sentinel */
 };