Initial commit to populate CoreCLR repo

[tfs-changeset: 1407945]

1 files changed, 131 insertions, 0 deletions

diff --git a/src/vm/readytoruninfo.h b/src/vm/readytoruninfo.h
new file mode 100644
index 0000000000..8ddebcb735
--- /dev/null
+++ b/src/vm/readytoruninfo.h
@@ -0,0 +1,131 @@
+//
+// 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_