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Add helper functions for creating return value variables.

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This commit is contained in:
Rene Gollent 2012-12-28 22:31:28 -05:00
parent dc693e9265
commit c7ca91ffd3
2 changed files with 83 additions and 0 deletions
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76
src/apps/debugger/debug_info/DwarfStackFrameDebugInfo.cpp
View File

@ -1,4 +1,5 @@
/*
* Copyright 2012, Rene Gollent, rene@gollent.com.
* Copyright 2009, Ingo Weinhold, ingo_weinhold@gmx.de.
* Distributed under the terms of the MIT License.
*/
@ -23,6 +24,7 @@
#include "LocalVariableID.h"
#include "Register.h"
#include "RegisterMap.h"
#include "ReturnValueID.h"
#include "StringUtils.h"
#include "Tracing.h"
#include "ValueLocation.h"
@ -117,6 +119,47 @@ private:
};
// #pragma mark - DwarfReturnValueID
struct DwarfStackFrameDebugInfo::DwarfReturnValueID
: public ReturnValueID {
DwarfReturnValueID(FunctionID* functionID)
:
fFunctionID(functionID),
fName("(returned)")
{
fFunctionID->AcquireReference();
}
virtual ~DwarfReturnValueID()
{
fFunctionID->ReleaseReference();
}
virtual bool operator==(const ObjectID& other) const
{
const DwarfReturnValueID* returnValueID
= dynamic_cast<const DwarfReturnValueID*>(&other);
return returnValueID != NULL
&& *fFunctionID == *returnValueID->fFunctionID
&& fName == returnValueID->fName;
}
protected:
virtual uint32 ComputeHashValue() const
{
uint32 hash = fFunctionID->HashValue();
return hash * 25 + StringUtils::HashValue(fName);
}
private:
FunctionID* fFunctionID;
const BString fName;
};
// #pragma mark - DwarfStackFrameDebugInfo
@ -234,6 +277,39 @@ DwarfStackFrameDebugInfo::CreateLocalVariable(FunctionID* functionID,
}
status_t
DwarfStackFrameDebugInfo::CreateReturnValue(FunctionID* functionID,
DIEType* returnType, ValueLocation* location, Variable*& _variable)
{
if (returnType == NULL)
return B_BAD_VALUE;
// create the type
DwarfType* type;
status_t error = fTypeFactory->CreateType(returnType, type);
if (error != B_OK)
return error;
BReference<DwarfType> typeReference(type, true);
DwarfReturnValueID* id = new(std::nothrow) DwarfReturnValueID(
functionID);
if (id == NULL)
return B_NO_MEMORY;
BString name;
name.SetToFormat("%s returned", functionID->FunctionName().String());
Variable* variable = new(std::nothrow) Variable(id, name,
type, location);
if (variable == NULL)
return B_NO_MEMORY;
_variable = variable;
return B_OK;
}
status_t
DwarfStackFrameDebugInfo::_CreateVariable(ObjectID* id, const BString& name,
DIEType* typeEntry, LocationDescription* locationDescription,

7
src/apps/debugger/debug_info/DwarfStackFrameDebugInfo.h
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@ -1,4 +1,5 @@
/*
* Copyright 2012, Rene Gollent, rene@gollent.com.
* Copyright 2009, Ingo Weinhold, ingo_weinhold@gmx.de.
* Distributed under the terms of the MIT License.
*/
@ -56,10 +57,16 @@ public:
DIEVariable* variableEntry,
Variable*& _variable);
// returns reference
status_t CreateReturnValue(FunctionID* functionID,
DIEType* returnType,
ValueLocation* location,
Variable*& _variable);
// returns reference
private:
struct DwarfFunctionParameterID;
struct DwarfLocalVariableID;
struct DwarfReturnValueID;
private:
status_t _CreateVariable(ObjectID* id,