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//
// Copyright (c) Microsoft. All rights reserved.
// Licensed under the MIT license. See LICENSE file in the project root for full license information.
//
// ===========================================================================
// File: ReadyToRunInfo.h
//
//
// Runtime support for Ready to Run
// ===========================================================================
#ifndef _READYTORUNINFO_H_
#define _READYTORUNINFO_H_
#include "nativeformatreader.h"
typedef DPTR(struct READYTORUN_SECTION) PTR_READYTORUN_SECTION;
typedef DPTR(class ReadyToRunInfo) PTR_ReadyToRunInfo;
class ReadyToRunInfo
{
friend class ReadyToRunJitManager;
PTR_Module m_pModule;
PTR_PEImageLayout m_pLayout;
PTR_READYTORUN_HEADER m_pHeader;
PTR_RUNTIME_FUNCTION m_pRuntimeFunctions;
DWORD m_nRuntimeFunctions;
PTR_CORCOMPILE_IMPORT_SECTION m_pImportSections;
DWORD m_nImportSections;
NativeFormat::NativeReader m_nativeReader;
NativeFormat::NativeArray m_methodDefEntryPoints;
Crst m_Crst;
PtrHashMap m_entryPointToMethodDescMap;
ReadyToRunInfo(Module * pModule, PEImageLayout * pLayout, READYTORUN_HEADER * pHeader);
public:
static BOOL IsReadyToRunEnabled();
static PTR_ReadyToRunInfo Initialize(Module * pModule, AllocMemTracker *pamTracker);
PCODE GetEntryPoint(MethodDesc * pMD, BOOL fFixups = TRUE);
MethodDesc * GetMethodDescForEntryPoint(PCODE entryPoint);
BOOL SkipTypeValidation()
{
LIMITED_METHOD_CONTRACT;
return m_pHeader->Flags & READYTORUN_FLAG_SKIP_TYPE_VALIDATION;
}
PTR_PEImageLayout GetImage()
{
LIMITED_METHOD_CONTRACT;
return m_pLayout;
}
IMAGE_DATA_DIRECTORY * FindSection(DWORD type);
PTR_CORCOMPILE_IMPORT_SECTION GetImportSections(COUNT_T * pCount)
{
LIMITED_METHOD_CONTRACT;
*pCount = m_nImportSections;
return m_pImportSections;
}
PTR_CORCOMPILE_IMPORT_SECTION GetImportSectionFromIndex(COUNT_T index)
{
LIMITED_METHOD_CONTRACT;
_ASSERTE(index < m_nImportSections);
return m_pImportSections + index;
}
PTR_CORCOMPILE_IMPORT_SECTION GetImportSectionForRVA(RVA rva)
{
LIMITED_METHOD_CONTRACT;
PTR_CORCOMPILE_IMPORT_SECTION pEnd = m_pImportSections + m_nImportSections;
for (PTR_CORCOMPILE_IMPORT_SECTION pSection = m_pImportSections; pSection < pEnd; pSection++)
{
if (rva >= VAL32(pSection->Section.VirtualAddress) && rva < VAL32(pSection->Section.VirtualAddress) + VAL32(pSection->Section.Size))
return pSection;
}
return NULL;
}
PTR_BYTE GetDebugInfo(PTR_RUNTIME_FUNCTION pRuntimeFunction);
class MethodIterator
{
ReadyToRunInfo * m_pInfo;
int m_methodDefIndex;
public:
MethodIterator(ReadyToRunInfo * pInfo)
: m_pInfo(pInfo), m_methodDefIndex(-1)
{
}
BOOL Next();
MethodDesc * GetMethodDesc();
PCODE GetMethodStartAddress();
};
static DWORD GetFieldBaseOffset(MethodTable * pMT);
};
class DynamicHelpers
{
public:
static PCODE CreateHelper(LoaderAllocator * pAllocator, TADDR arg, PCODE target);
static PCODE CreateHelperWithArg(LoaderAllocator * pAllocator, TADDR arg, PCODE target);
static PCODE CreateHelper(LoaderAllocator * pAllocator, TADDR arg, TADDR arg2, PCODE target);
static PCODE CreateHelperArgMove(LoaderAllocator * pAllocator, TADDR arg, PCODE target);
static PCODE CreateReturn(LoaderAllocator * pAllocator);
static PCODE CreateReturnConst(LoaderAllocator * pAllocator, TADDR arg);
static PCODE CreateReturnIndirConst(LoaderAllocator * pAllocator, TADDR arg, INT8 offset);
static PCODE CreateHelperWithTwoArgs(LoaderAllocator * pAllocator, TADDR arg, PCODE target);
static PCODE CreateHelperWithTwoArgs(LoaderAllocator * pAllocator, TADDR arg, TADDR arg2, PCODE target);
};
#endif // _READYTORUNINFO_H_
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