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ee_il_dll.cpp
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ee_il_dll.cpp
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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.
//
/*XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
XX XX
XX ee_jit.cpp XX
XX XX
XX The functionality needed for the JIT DLL. Includes the DLL entry point XX
XX XX
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
*/
#include "jitpch.h"
#ifdef _MSC_VER
#pragma hdrstop
#endif
#include "emit.h"
/*****************************************************************************/
static CILJit* ILJitter = 0; // The one and only JITTER I return
#ifndef FEATURE_MERGE_JIT_AND_ENGINE
HINSTANCE g_hInst = NULL;
BOOL g_fClrCallbacksInit = FALSE;
#endif // FEATURE_MERGE_JIT_AND_ENGINE
/*****************************************************************************/
#ifdef DEBUG
JitOptions jitOpts =
{
NULL, // methodName
NULL, // className
0.1, // CGknob
0, // testMask
(JitOptions *)NULL // lastDummyField.
};
#endif // DEBUG
/*****************************************************************************/
/*****************************************************************************
* jitOnDllProcessAttach() called by DllMain() when jit.dll is loaded
*/
void jitOnDllProcessAttach()
{
Compiler::compStartup();
}
/*****************************************************************************
* jitOnDllProcessDetach() called by DllMain() when jit.dll is unloaded
*/
void jitOnDllProcessDetach()
{
Compiler::compShutdown();
}
#ifndef FEATURE_MERGE_JIT_AND_ENGINE
extern "C"
BOOL WINAPI DllMain(HANDLE hInstance, DWORD dwReason, LPVOID pvReserved)
{
if (dwReason == DLL_PROCESS_ATTACH)
{
g_hInst = (HINSTANCE)hInstance;
DisableThreadLibraryCalls((HINSTANCE)hInstance);
#ifdef SELF_NO_HOST
jitOnDllProcessAttach();
g_fClrCallbacksInit = TRUE;
#endif
}
else if (dwReason == DLL_PROCESS_DETACH)
{
if (g_fClrCallbacksInit)
jitOnDllProcessDetach();
}
return TRUE;
}
HINSTANCE GetModuleInst()
{
return (g_hInst);
}
void __stdcall sxsJitStartup(CoreClrCallbacks const & cccallbacks)
{
#ifndef SELF_NO_HOST
InitUtilcode(cccallbacks);
jitOnDllProcessAttach();
g_fClrCallbacksInit = TRUE;
#endif
}
#endif // !FEATURE_MERGE_JIT_AND_ENGINE
/*****************************************************************************/
struct CILJitSingletonAllocator { int x; };
const CILJitSingletonAllocator CILJitSingleton = { 0 };
void *__cdecl operator new(size_t, const CILJitSingletonAllocator&)
{
static char CILJitBuff[sizeof(CILJit)];
return CILJitBuff;
}
ICorJitCompiler* g_realJitCompiler = nullptr;
ICorJitCompiler* __stdcall getJit()
{
if (ILJitter == 0)
{
ILJitter = new (CILJitSingleton) CILJit();
#ifdef FEATURE_MERGE_JIT_AND_ENGINE
Compiler::compStartup();
#endif
}
return(ILJitter);
}
//****************************************************************************
// The main JIT function for the 32 bit JIT. See code:ICorJitCompiler#EEToJitInterface for more on the EE-JIT
// interface. Things really don't get going inside the JIT until the code:Compiler::compCompile#Phases
// method. Usually that is where you want to go.
CorJitResult CILJit::compileMethod (
ICorJitInfo* compHnd,
CORINFO_METHOD_INFO* methodInfo,
unsigned flags,
BYTE ** entryAddress,
ULONG * nativeSizeOfCode)
{
if (g_realJitCompiler != nullptr)
{
return g_realJitCompiler->compileMethod(compHnd, methodInfo, flags, entryAddress, nativeSizeOfCode);
}
int result;
void * methodCodePtr = NULL;
CORINFO_METHOD_HANDLE methodHandle = methodInfo->ftn;
#ifdef DEBUG
LogEnv curEnv(compHnd); // capture state needed for error reporting
#endif
assert(methodInfo->ILCode);
result = jitNativeCode(methodHandle,
methodInfo->scope,
compHnd,
methodInfo,
&methodCodePtr,
nativeSizeOfCode,
flags,
NULL);
if (result == CORJIT_OK)
*entryAddress = (BYTE*)methodCodePtr;
return CorJitResult(result);
}
/*****************************************************************************
* Notification from VM to clear any caches
*/
void CILJit::clearCache ( void )
{
if (g_realJitCompiler != nullptr)
{
g_realJitCompiler->clearCache();
// Continue...
}
return;
}
/*****************************************************************************
* Notify vm that we have something to clean up
*/
BOOL CILJit::isCacheCleanupRequired ( void )
{
BOOL doCleanup;
if (g_realJitCompiler != nullptr)
{
if (g_realJitCompiler->isCacheCleanupRequired())
return TRUE;
// Continue...
}
return FALSE;
}
void CILJit::ProcessShutdownWork(ICorStaticInfo* statInfo)
{
if (g_realJitCompiler != nullptr)
{
g_realJitCompiler->ProcessShutdownWork(statInfo);
// Continue, by shutting down this JIT as well.
}
Compiler::ProcessShutdownWork(statInfo);
}
/*****************************************************************************
* Verify the JIT/EE interface identifier.
*/
void CILJit::getVersionIdentifier(GUID* versionIdentifier)
{
if (g_realJitCompiler != nullptr)
{
g_realJitCompiler->getVersionIdentifier(versionIdentifier);
return;
}
assert(versionIdentifier != nullptr);
memcpy(versionIdentifier, &JITEEVersionIdentifier, sizeof(GUID));
}
#ifndef RYUJIT_CTPBUILD
/*****************************************************************************
* Determine the maximum length of SIMD vector supported by this JIT.
*/
unsigned CILJit::getMaxIntrinsicSIMDVectorLength(DWORD cpuCompileFlags)
{
if (g_realJitCompiler != nullptr)
{
return g_realJitCompiler->getMaxIntrinsicSIMDVectorLength(cpuCompileFlags);
}
#ifdef _TARGET_AMD64_
#ifdef FEATURE_AVX_SUPPORT
if (((cpuCompileFlags & CORJIT_FLG_PREJIT) == 0) &&
((cpuCompileFlags & CORJIT_FLG_FEATURE_SIMD) != 0) &&
((cpuCompileFlags & CORJIT_FLG_USE_AVX2) != 0))
{
static ConfigDWORD fEnableAVX;
if (fEnableAVX.val(CLRConfig::EXTERNAL_EnableAVX) != 0)
{
return 32;
}
}
#endif // FEATURE_AVX_SUPPORT
return 16;
#else // !_TARGET_AMD64_
return 0;
#endif // !_TARGET_AMD64_
}
#endif //!RYUJIT_CTPBUILD
#ifndef RYUJIT_CTPBUILD
void CILJit::setRealJit(ICorJitCompiler* realJitCompiler)
{
g_realJitCompiler = realJitCompiler;
}
#endif // !RYUJIT_CTPBUILD
/*****************************************************************************
* Returns the number of bytes required for the given type argument
*/
unsigned Compiler::eeGetArgSize(CORINFO_ARG_LIST_HANDLE list, CORINFO_SIG_INFO* sig)
{
#if defined(_TARGET_AMD64_) || defined(_TARGET_ARM64_)
// Everything fits into a single 'slot' size
// to accommodate irregular sized structs, they are passed byref
// TODO-ARM64-Bug?: structs <= 16 bytes get passed in 2 consecutive registers.
return sizeof(size_t);
#else // !_TARGET_AMD64_ && !_TARGET_ARM64_
CORINFO_CLASS_HANDLE argClass;
CorInfoType argTypeJit = strip(info.compCompHnd->getArgType(sig, list, &argClass));
var_types argType = JITtype2varType(argTypeJit);
if (argType == TYP_STRUCT)
{
unsigned structSize = info.compCompHnd->getClassSize(argClass);
// make certain the EE passes us back the right thing for refanys
assert(argTypeJit != CORINFO_TYPE_REFANY || structSize == 2*sizeof(void*));
return (unsigned)roundUp(structSize, sizeof(size_t));
}
else
{
unsigned argSize = sizeof(size_t) * genTypeStSz(argType);
assert(0 < argSize && argSize <= sizeof(__int64));
return argSize;
}
#endif
}
/*****************************************************************************/
GenTreePtr Compiler::eeGetPInvokeCookie(CORINFO_SIG_INFO *szMetaSig)
{
void * cookie, * pCookie;
cookie = info.compCompHnd->GetCookieForPInvokeCalliSig(szMetaSig, &pCookie);
assert((cookie == NULL) != (pCookie == NULL));
return gtNewIconEmbHndNode(cookie, pCookie, GTF_ICON_PINVKI_HDL);
}
/*****************************************************************************/
unsigned Compiler::eeGetArrayDataOffset(var_types type)
{
#ifndef RYUJIT_CTPBUILD
return varTypeIsGC(type) ? eeGetEEInfo()->offsetOfObjArrayData
: offsetof(CORINFO_Array, u1Elems);
#else
return varTypeIsGC(type) ? offsetof(CORINFO_RefArray, refElems)
: offsetof(CORINFO_Array, u1Elems);
#endif
}
/*****************************************************************************/
void Compiler::eeGetStmtOffsets()
{
ULONG32 offsetsCount;
DWORD * offsets;
ICorDebugInfo::BoundaryTypes offsetsImplicit;
info.compCompHnd->getBoundaries(info.compMethodHnd,
&offsetsCount,
&offsets,
&offsetsImplicit);
/* Set the implicit boundaries */
info.compStmtOffsetsImplicit = (ICorDebugInfo::BoundaryTypes)offsetsImplicit;
/* Process the explicit boundaries */
info.compStmtOffsetsCount = 0;
if (offsetsCount == 0)
return;
info.compStmtOffsets = new (this, CMK_DebugInfo) IL_OFFSET[offsetsCount];
for (unsigned i = 0; i < offsetsCount; i++)
{
if (offsets[i] > info.compILCodeSize)
continue;
info.compStmtOffsets[info.compStmtOffsetsCount] = offsets[i];
info.compStmtOffsetsCount++;
}
info.compCompHnd->freeArray(offsets);
}
/*****************************************************************************
*
* Debugging support - Local var info
*/
void Compiler::eeSetLVcount (unsigned count)
{
assert(opts.compScopeInfo);
JITDUMP("VarLocInfo count is %d\n", count);
eeVarsCount = count;
if (eeVarsCount)
eeVars = (VarResultInfo *)info.compCompHnd->allocateArray(eeVarsCount * sizeof(eeVars[0]));
else
eeVars = NULL;
}
void Compiler::eeSetLVinfo
(unsigned which,
UNATIVE_OFFSET startOffs,
UNATIVE_OFFSET length,
unsigned varNum,
unsigned LVnum,
VarName name,
bool avail,
const Compiler::siVarLoc & varLoc)
{
// ICorDebugInfo::VarLoc and Compiler::siVarLoc have to overlap
// This is checked in siInit()
assert(opts.compScopeInfo);
assert(eeVarsCount > 0);
assert(which < eeVarsCount);
if (eeVars != NULL)
{
eeVars[which].startOffset = startOffs;
eeVars[which].endOffset = startOffs + length;
eeVars[which].varNumber = varNum;
eeVars[which].loc = varLoc;
}
}
void Compiler::eeSetLVdone()
{
// necessary but not sufficient condition that the 2 struct definitions overlap
assert(sizeof(eeVars[0]) == sizeof(ICorDebugInfo::NativeVarInfo));
assert(opts.compScopeInfo);
#ifdef DEBUG
if (verbose)
{
eeDispVars(info.compMethodHnd,
eeVarsCount,
(ICorDebugInfo::NativeVarInfo *) eeVars);
}
#endif // DEBUG
info.compCompHnd->setVars(info.compMethodHnd,
eeVarsCount,
(ICorDebugInfo::NativeVarInfo *) eeVars);
eeVars = NULL; // We give up ownership after setVars()
}
void Compiler::eeGetVars()
{
ICorDebugInfo::ILVarInfo * varInfoTable;
ULONG32 varInfoCount;
bool extendOthers;
info.compCompHnd->getVars(info.compMethodHnd,
&varInfoCount, &varInfoTable, &extendOthers);
#ifdef DEBUG
if (verbose)
printf("getVars() returned cVars = %d, extendOthers = %s\n", varInfoCount, extendOthers ? "true" : "false");
#endif
// Over allocate in case extendOthers is set.
SIZE_T varInfoCountExtra = varInfoCount;
if (extendOthers)
varInfoCountExtra += info.compLocalsCount;
if (varInfoCountExtra == 0)
return;
info.compVarScopes = new (this, CMK_DebugInfo) VarScopeDsc[varInfoCountExtra];
VarScopeDsc* localVarPtr = info.compVarScopes;
ICorDebugInfo::ILVarInfo *v = varInfoTable;
for (unsigned i = 0; i < varInfoCount; i++, v++)
{
#ifdef DEBUG
if (verbose)
printf("var:%d start:%d end:%d\n",
v->varNumber,
v->startOffset,
v->endOffset);
#endif
if (v->startOffset >= v->endOffset)
continue;
assert(v->startOffset <= info.compILCodeSize);
assert(v->endOffset <= info.compILCodeSize);
localVarPtr->vsdLifeBeg = v->startOffset;
localVarPtr->vsdLifeEnd = v->endOffset;
localVarPtr->vsdLVnum = i;
localVarPtr->vsdVarNum = compMapILvarNum(v->varNumber);
#ifdef DEBUG
localVarPtr->vsdName = gtGetLclVarName(localVarPtr->vsdVarNum);
#endif
localVarPtr++;
info.compVarScopesCount++;
}
/* If extendOthers is set, then assume the scope of unreported vars
is the entire method. Note that this will cause fgExtendDbgLifetimes()
to zero-initalize all of them. This will be expensive if it's used
for too many variables.
*/
if (extendOthers)
{
// Allocate a bit-array for all the variables and initialize to false
bool * varInfoProvided = (bool *)compGetMemA(info.compLocalsCount *
sizeof(varInfoProvided[0]));
unsigned i;
for (i = 0; i < info.compLocalsCount; i++)
varInfoProvided[i] = false;
// Find which vars have absolutely no varInfo provided
for (i = 0; i < info.compVarScopesCount; i++)
varInfoProvided[info.compVarScopes[i].vsdVarNum] = true;
// Create entries for the variables with no varInfo
for (unsigned varNum = 0; varNum < info.compLocalsCount; varNum++)
{
if (varInfoProvided[varNum])
continue;
// Create a varInfo with scope over the entire method
localVarPtr->vsdLifeBeg = 0;
localVarPtr->vsdLifeEnd = info.compILCodeSize;
localVarPtr->vsdVarNum = varNum;
localVarPtr->vsdLVnum = info.compVarScopesCount;
#ifdef DEBUG
localVarPtr->vsdName = gtGetLclVarName(localVarPtr->vsdVarNum);
#endif
localVarPtr++;
info.compVarScopesCount++;
}
}
assert(localVarPtr <= info.compVarScopes + varInfoCountExtra);
if (varInfoCount != 0)
info.compCompHnd->freeArray(varInfoTable);
#ifdef DEBUG
if (verbose)
compDispLocalVars();
#endif // DEBUG
}
#ifdef DEBUG
void Compiler::eeDispVar(ICorDebugInfo::NativeVarInfo* var)
{
const char* name = NULL;
if (var->varNumber == (DWORD)ICorDebugInfo::VARARGS_HND_ILNUM)
name = "varargsHandle";
else if (var->varNumber == (DWORD)ICorDebugInfo::RETBUF_ILNUM)
name = "retBuff";
else if (var->varNumber == (DWORD)ICorDebugInfo::TYPECTXT_ILNUM)
name = "typeCtx";
printf("%3d(%10s) : From %08Xh to %08Xh, in ",
var->varNumber,
(VarNameToStr(name) == NULL) ? "UNKNOWN" : VarNameToStr(name),
var->startOffset,
var->endOffset);
switch (var->loc.vlType)
{
case VLT_REG:
case VLT_REG_BYREF:
case VLT_REG_FP:
printf("%s", getRegName(var->loc.vlReg.vlrReg));
if (var->loc.vlType == (ICorDebugInfo::VarLocType)VLT_REG_BYREF)
{
printf(" byref");
}
break;
case VLT_STK:
case VLT_STK_BYREF:
if ((int) var->loc.vlStk.vlsBaseReg != (int) ICorDebugInfo::REGNUM_AMBIENT_SP)
{
printf("%s[%d] (1 slot)", getRegName(var->loc.vlStk.vlsBaseReg),
var->loc.vlStk.vlsOffset);
}
else
{
printf(STR_SPBASE "'[%d] (1 slot)", var->loc.vlStk.vlsOffset);
}
if (var->loc.vlType == (ICorDebugInfo::VarLocType)VLT_REG_BYREF)
{
printf(" byref");
}
break;
#ifndef _TARGET_AMD64_
case VLT_REG_REG:
printf("%s-%s", getRegName(var->loc.vlRegReg.vlrrReg1),
getRegName(var->loc.vlRegReg.vlrrReg2));
break;
case VLT_REG_STK:
if ((int) var->loc.vlRegStk.vlrsStk.vlrssBaseReg != (int) ICorDebugInfo::REGNUM_AMBIENT_SP)
{
printf("%s-%s[%d]", getRegName(var->loc.vlRegStk.vlrsReg),
getRegName(var->loc.vlRegStk.vlrsStk.vlrssBaseReg),
var->loc.vlRegStk.vlrsStk.vlrssOffset);
}
else
{
printf("%s-" STR_SPBASE "'[%d]", getRegName(var->loc.vlRegStk.vlrsReg),
var->loc.vlRegStk.vlrsStk.vlrssOffset);
}
break;
case VLT_STK_REG:
unreached(); // unexpected
case VLT_STK2:
if ((int) var->loc.vlStk2.vls2BaseReg != (int) ICorDebugInfo::REGNUM_AMBIENT_SP)
{
printf("%s[%d] (2 slots)", getRegName(var->loc.vlStk2.vls2BaseReg),
var->loc.vlStk2.vls2Offset);
}
else
{
printf(STR_SPBASE "'[%d] (2 slots)", var->loc.vlStk2.vls2Offset);
}
break;
case VLT_FPSTK:
printf("ST(L-%d)", var->loc.vlFPstk.vlfReg);
break;
case VLT_FIXED_VA:
printf("fxd_va[%d]", var->loc.vlFixedVarArg.vlfvOffset);
break;
#endif // !_TARGET_AMD64_
default:
unreached(); // unexpected
}
printf("\n");
}
// Same parameters as ICorStaticInfo::setVars().
void Compiler::eeDispVars(CORINFO_METHOD_HANDLE ftn,
ULONG32 cVars,
ICorDebugInfo::NativeVarInfo* vars)
{
printf("*************** Variable debug info\n");
printf("%d vars\n", cVars);
for (unsigned i = 0; i < cVars; i++)
{
eeDispVar(&vars[i]);
}
}
#endif // DEBUG
/*****************************************************************************
*
* Debugging support - Line number info
*/
void Compiler::eeSetLIcount (unsigned count)
{
assert(opts.compDbgInfo);
eeBoundariesCount = count;
if (eeBoundariesCount)
eeBoundaries = (boundariesDsc *) info.compCompHnd->allocateArray(eeBoundariesCount * sizeof(eeBoundaries[0]));
else
eeBoundaries = NULL;
}
void Compiler::eeSetLIinfo (unsigned which,
UNATIVE_OFFSET nativeOffset,
IL_OFFSET ilOffset,
bool stkEmpty,
bool callInstruction)
{
assert(opts.compDbgInfo);
assert(eeBoundariesCount > 0);
assert(which < eeBoundariesCount);
if (eeBoundaries != NULL)
{
eeBoundaries[which].nativeIP = nativeOffset;
eeBoundaries[which].ilOffset = ilOffset;
eeBoundaries[which].sourceReason = stkEmpty ? ICorDebugInfo::STACK_EMPTY : 0;
eeBoundaries[which].sourceReason |= callInstruction ? ICorDebugInfo::CALL_INSTRUCTION : 0;
}
}
void Compiler::eeSetLIdone()
{
assert(opts.compDbgInfo);
#if defined(DEBUG)
if (verbose)
{
eeDispLineInfos();
}
#endif // DEBUG
// necessary but not sufficient condition that the 2 struct definitions overlap
assert(sizeof(eeBoundaries[0]) == sizeof(ICorDebugInfo::OffsetMapping));
info.compCompHnd->setBoundaries(info.compMethodHnd,
eeBoundariesCount,
(ICorDebugInfo::OffsetMapping *) eeBoundaries);
eeBoundaries = NULL; // we give up ownership after setBoundaries();
}
#if defined(DEBUG)
/* static */
void Compiler::eeDispILOffs(IL_OFFSET offs)
{
const char * specialOffs[] = { "EPILOG", "PROLOG", "NO_MAP" };
switch ((int)offs) // Need the cast since offs is unsigned and the case statements are comparing to signed.
{
case ICorDebugInfo::EPILOG:
case ICorDebugInfo::PROLOG:
case ICorDebugInfo::NO_MAPPING:
assert(DWORD(ICorDebugInfo::EPILOG) + 1 == (unsigned)ICorDebugInfo::PROLOG);
assert(DWORD(ICorDebugInfo::EPILOG) + 2 == (unsigned)ICorDebugInfo::NO_MAPPING);
int specialOffsNum;
specialOffsNum = offs - DWORD(ICorDebugInfo::EPILOG);
printf("%s", specialOffs[specialOffsNum]);
break;
default:
printf("0x%04X", offs);
}
}
/* static */
void Compiler::eeDispLineInfo(const boundariesDsc* line)
{
printf("IL offs ");
eeDispILOffs(line->ilOffset);
printf(" : 0x%08X", line->nativeIP);
if (line->sourceReason != 0)
{
// It seems like it should probably never be zero since ICorDebugInfo::SOURCE_TYPE_INVALID is zero.
// However, the JIT has always generated this and printed "stack non-empty".
printf(" ( ");
if ((line->sourceReason & ICorDebugInfo::STACK_EMPTY) != 0)
{
printf("STACK_EMPTY ");
}
if ((line->sourceReason & ICorDebugInfo::CALL_INSTRUCTION) != 0)
{
printf("CALL_INSTRUCTION ");
}
if ((line->sourceReason & ICorDebugInfo::CALL_SITE) != 0)
{
printf("CALL_SITE ");
}
printf(")");
}
printf("\n");
// We don't expect to see any other bits.
assert((line->sourceReason & ~(ICorDebugInfo::STACK_EMPTY | ICorDebugInfo::CALL_INSTRUCTION)) == 0);
}
void Compiler::eeDispLineInfos()
{
printf("IP mapping count : %d\n", eeBoundariesCount); // this might be zero
for (unsigned i = 0; i < eeBoundariesCount; i++)
{
eeDispLineInfo(&eeBoundaries[i]);
}
printf("\n");
}
#endif // DEBUG
/*****************************************************************************
*
* ICorJitInfo wrapper functions
*
* In many cases here, we don't tell the VM about various unwind or EH information if
* we're an altjit for an unexpected architecture. If it's not a same architecture JIT
* (e.g., host AMD64, target ARM64), then VM will get confused anyway.
*/
void Compiler::eeReserveUnwindInfo(BOOL isFunclet,
BOOL isColdCode,
ULONG unwindSize)
{
#ifdef DEBUG
if (verbose)
{
printf("reserveUnwindInfo(isFunclet=%s, isColdCode=%s, unwindSize=0x%x)\n",
isFunclet ? "TRUE" : "FALSE",
isColdCode ? "TRUE" : "FALSE",
unwindSize);
}
#endif // DEBUG
if (info.compMatchedVM)
{
info.compCompHnd->reserveUnwindInfo(isFunclet, isColdCode, unwindSize);
}
}
void Compiler::eeAllocUnwindInfo(BYTE* pHotCode,
BYTE* pColdCode,
ULONG startOffset,
ULONG endOffset,
ULONG unwindSize,
BYTE* pUnwindBlock,
CorJitFuncKind funcKind)
{
#ifdef DEBUG
if (verbose)
{
printf("allocUnwindInfo(pHotCode=0x%p, pColdCode=0x%p, startOffset=0x%x, endOffset=0x%x, unwindSize=0x%x, pUnwindBlock=0x%p, funKind=%d",
dspPtr(pHotCode),
dspPtr(pColdCode),
startOffset,
endOffset,
unwindSize,
dspPtr(pUnwindBlock),
funcKind);
switch (funcKind)
{
case CORJIT_FUNC_ROOT: printf(" (main function)"); break;
case CORJIT_FUNC_HANDLER: printf(" (handler)"); break;
case CORJIT_FUNC_FILTER: printf(" (filter)"); break;
default: printf(" (ILLEGAL)"); break;
}
printf(")\n");
}
#endif // DEBUG
if (info.compMatchedVM)
{
info.compCompHnd->allocUnwindInfo(
pHotCode,
pColdCode,
startOffset,
endOffset,
unwindSize,
pUnwindBlock,
funcKind);
}
}
void Compiler::eeSetEHcount(unsigned cEH)
{
#ifdef DEBUG
if (verbose)
{
printf("setEHcount(cEH=%u)\n", cEH);
}
#endif // DEBUG
if (info.compMatchedVM)
{
info.compCompHnd->setEHcount(cEH);
}
}
void Compiler::eeSetEHinfo(unsigned EHnumber,
const CORINFO_EH_CLAUSE *clause)
{
#ifdef DEBUG
if (opts.dspEHTable)
{
dispOutgoingEHClause(EHnumber, *clause);
}
#endif // DEBUG
if (info.compMatchedVM)
{
info.compCompHnd->setEHinfo(EHnumber, clause);
}
}
CORINFO_FIELD_HANDLE Compiler::eeFindJitDataOffs(unsigned dataOffs)
{
// Data offsets are marked by the fact that the low two bits are 0b01 0x1
assert(dataOffs < 0x40000000);
return (CORINFO_FIELD_HANDLE)(size_t)((dataOffs << iaut_SHIFT) | iaut_DATA_OFFSET);
}
bool Compiler::eeIsJitDataOffs(CORINFO_FIELD_HANDLE field)
{
// if 'field' is a jit data offset it has to fit into a 32-bit unsigned int
unsigned value = (unsigned) field;
if (((CORINFO_FIELD_HANDLE)(size_t)value) != field)
{
return false; // upper bits were set, not a jit data offset
}
// Data offsets are marked by the fact that the low two bits are 0b01 0x1
return (value & iaut_MASK) == iaut_DATA_OFFSET;
}
int Compiler::eeGetJitDataOffs(CORINFO_FIELD_HANDLE field)
{
// Data offsets are marked by the fact that the low two bits are 0b01 0x1
if (eeIsJitDataOffs(field))
{
unsigned dataOffs = (unsigned) field;
assert(((CORINFO_FIELD_HANDLE)(size_t)dataOffs) == field);
assert(dataOffs < 0x40000000);
return ((int) field) >> iaut_SHIFT;
}
else
{
return -1;
}
}
/*****************************************************************************
*
* Utility functions
*/
#if defined(DEBUG) || defined(FEATURE_JIT_METHOD_PERF) || defined(FEATURE_SIMD)
/*****************************************************************************/
// static helper names - constant array
const char* jitHlpFuncTable[CORINFO_HELP_COUNT] =
{
#define JITHELPER(code, pfnHelper, sig) #code,
#define DYNAMICJITHELPER(code, pfnHelper,sig) #code,
#include "jithelpers.h"
};
/*****************************************************************************
*
* Filter wrapper to handle exception filtering.
* On Unix compilers don't support SEH.
*/
struct FilterSuperPMIExceptionsParam_ee_il
{
Compiler* pThis;
Compiler::Info* pJitInfo;
CORINFO_FIELD_HANDLE field;
CORINFO_METHOD_HANDLE method;
CORINFO_CLASS_HANDLE clazz;
const char** classNamePtr;
const char* fieldOrMethodOrClassNamePtr;
EXCEPTION_POINTERS exceptionPointers;
};
static LONG FilterSuperPMIExceptions_ee_il(PEXCEPTION_POINTERS pExceptionPointers, LPVOID lpvParam)
{
FilterSuperPMIExceptionsParam_ee_il *pSPMIEParam =
(FilterSuperPMIExceptionsParam_ee_il *)lpvParam;
pSPMIEParam->exceptionPointers = *pExceptionPointers;
if (pSPMIEParam->pThis->IsSuperPMIException(pExceptionPointers->ExceptionRecord->ExceptionCode))
return EXCEPTION_EXECUTE_HANDLER;
return EXCEPTION_CONTINUE_SEARCH;
}
const char* Compiler::eeGetMethodName(CORINFO_METHOD_HANDLE method,
const char** classNamePtr)
{
if (eeGetHelperNum(method))
{
if (classNamePtr != 0)
*classNamePtr = "HELPER";
CorInfoHelpFunc ftnNum = eeGetHelperNum(method);
const char* name = info.compCompHnd->getHelperName(ftnNum);
// If it's something unknown from a RET VM, or from SuperPMI, then use our own helper name table.
if ((strcmp(name, "AnyJITHelper") == 0) ||
(strcmp(name, "Yickish helper name") == 0))
{
if (ftnNum < CORINFO_HELP_COUNT)
{
name = jitHlpFuncTable[ftnNum];
}
}
return name;
}
if (eeIsNativeMethod(method))
{
if (classNamePtr != 0)
*classNamePtr = "NATIVE";
method = eeGetMethodHandleForNative(method);
}
FilterSuperPMIExceptionsParam_ee_il param;