mirror of
https://github.com/Gericom/teak-llvm.git
synced 2025-06-19 19:45:40 -04:00
841796decd
In the new scheme the client passes a list of (JITDylib&, bool) pairs, rather than a list of JITDylibs. For each JITDylib the boolean indicates whether or not to match against non-exported symbols (true means that they should be found, false means that they should not). The MatchNonExportedInJD and MatchNonExported parameters on lookup are removed. The new scheme is more flexible, and easier to understand. This patch also updates JITDylib search orders to be lists of (JITDylib&, bool) pairs to match the new lookup scheme. Error handling is also plumbed through the LLJIT class to allow regression tests to fail predictably when a lookup from a lazy call-through fails. llvm-svn: 345077
373 lines
12 KiB
C++
373 lines
12 KiB
C++
//===---- IndirectionUtils.cpp - Utilities for call indirection in Orc ----===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "llvm/ExecutionEngine/Orc/IndirectionUtils.h"
|
|
#include "llvm/ADT/STLExtras.h"
|
|
#include "llvm/ADT/Triple.h"
|
|
#include "llvm/ExecutionEngine/Orc/OrcABISupport.h"
|
|
#include "llvm/IR/CallSite.h"
|
|
#include "llvm/IR/IRBuilder.h"
|
|
#include "llvm/Support/Format.h"
|
|
#include "llvm/Transforms/Utils/Cloning.h"
|
|
#include <sstream>
|
|
|
|
using namespace llvm;
|
|
using namespace llvm::orc;
|
|
|
|
namespace {
|
|
|
|
class CompileCallbackMaterializationUnit : public orc::MaterializationUnit {
|
|
public:
|
|
using CompileFunction = JITCompileCallbackManager::CompileFunction;
|
|
|
|
CompileCallbackMaterializationUnit(SymbolStringPtr Name,
|
|
CompileFunction Compile, VModuleKey K)
|
|
: MaterializationUnit(SymbolFlagsMap({{Name, JITSymbolFlags::Exported}}),
|
|
std::move(K)),
|
|
Name(std::move(Name)), Compile(std::move(Compile)) {}
|
|
|
|
StringRef getName() const override { return "<Compile Callbacks>"; }
|
|
|
|
private:
|
|
void materialize(MaterializationResponsibility R) override {
|
|
SymbolMap Result;
|
|
Result[Name] = JITEvaluatedSymbol(Compile(), JITSymbolFlags::Exported);
|
|
R.resolve(Result);
|
|
R.emit();
|
|
}
|
|
|
|
void discard(const JITDylib &JD, const SymbolStringPtr &Name) override {
|
|
llvm_unreachable("Discard should never occur on a LMU?");
|
|
}
|
|
|
|
SymbolStringPtr Name;
|
|
CompileFunction Compile;
|
|
};
|
|
|
|
} // namespace
|
|
|
|
namespace llvm {
|
|
namespace orc {
|
|
|
|
void IndirectStubsManager::anchor() {}
|
|
void TrampolinePool::anchor() {}
|
|
|
|
Expected<JITTargetAddress>
|
|
JITCompileCallbackManager::getCompileCallback(CompileFunction Compile) {
|
|
if (auto TrampolineAddr = TP->getTrampoline()) {
|
|
auto CallbackName =
|
|
ES.intern(std::string("cc") + std::to_string(++NextCallbackId));
|
|
|
|
std::lock_guard<std::mutex> Lock(CCMgrMutex);
|
|
AddrToSymbol[*TrampolineAddr] = CallbackName;
|
|
cantFail(CallbacksJD.define(
|
|
llvm::make_unique<CompileCallbackMaterializationUnit>(
|
|
std::move(CallbackName), std::move(Compile),
|
|
ES.allocateVModule())));
|
|
return *TrampolineAddr;
|
|
} else
|
|
return TrampolineAddr.takeError();
|
|
}
|
|
|
|
JITTargetAddress JITCompileCallbackManager::executeCompileCallback(
|
|
JITTargetAddress TrampolineAddr) {
|
|
SymbolStringPtr Name;
|
|
|
|
{
|
|
std::unique_lock<std::mutex> Lock(CCMgrMutex);
|
|
auto I = AddrToSymbol.find(TrampolineAddr);
|
|
|
|
// If this address is not associated with a compile callback then report an
|
|
// error to the execution session and return ErrorHandlerAddress to the
|
|
// callee.
|
|
if (I == AddrToSymbol.end()) {
|
|
Lock.unlock();
|
|
std::string ErrMsg;
|
|
{
|
|
raw_string_ostream ErrMsgStream(ErrMsg);
|
|
ErrMsgStream << "No compile callback for trampoline at "
|
|
<< format("0x%016x", TrampolineAddr);
|
|
}
|
|
ES.reportError(
|
|
make_error<StringError>(std::move(ErrMsg), inconvertibleErrorCode()));
|
|
return ErrorHandlerAddress;
|
|
} else
|
|
Name = I->second;
|
|
}
|
|
|
|
if (auto Sym = ES.lookup({{&CallbacksJD, true}}, Name))
|
|
return Sym->getAddress();
|
|
else {
|
|
llvm::dbgs() << "Didn't find callback.\n";
|
|
// If anything goes wrong materializing Sym then report it to the session
|
|
// and return the ErrorHandlerAddress;
|
|
ES.reportError(Sym.takeError());
|
|
return ErrorHandlerAddress;
|
|
}
|
|
}
|
|
|
|
Expected<std::unique_ptr<JITCompileCallbackManager>>
|
|
createLocalCompileCallbackManager(const Triple &T, ExecutionSession &ES,
|
|
JITTargetAddress ErrorHandlerAddress) {
|
|
switch (T.getArch()) {
|
|
default:
|
|
return make_error<StringError>(
|
|
std::string("No callback manager available for ") + T.str(),
|
|
inconvertibleErrorCode());
|
|
case Triple::aarch64: {
|
|
typedef orc::LocalJITCompileCallbackManager<orc::OrcAArch64> CCMgrT;
|
|
return CCMgrT::Create(ES, ErrorHandlerAddress);
|
|
}
|
|
|
|
case Triple::x86: {
|
|
typedef orc::LocalJITCompileCallbackManager<orc::OrcI386> CCMgrT;
|
|
return CCMgrT::Create(ES, ErrorHandlerAddress);
|
|
}
|
|
|
|
case Triple::mips: {
|
|
typedef orc::LocalJITCompileCallbackManager<orc::OrcMips32Be> CCMgrT;
|
|
return CCMgrT::Create(ES, ErrorHandlerAddress);
|
|
}
|
|
case Triple::mipsel: {
|
|
typedef orc::LocalJITCompileCallbackManager<orc::OrcMips32Le> CCMgrT;
|
|
return CCMgrT::Create(ES, ErrorHandlerAddress);
|
|
}
|
|
|
|
case Triple::mips64:
|
|
case Triple::mips64el: {
|
|
typedef orc::LocalJITCompileCallbackManager<orc::OrcMips64> CCMgrT;
|
|
return CCMgrT::Create(ES, ErrorHandlerAddress);
|
|
}
|
|
|
|
case Triple::x86_64: {
|
|
if ( T.getOS() == Triple::OSType::Win32 ) {
|
|
typedef orc::LocalJITCompileCallbackManager<orc::OrcX86_64_Win32> CCMgrT;
|
|
return CCMgrT::Create(ES, ErrorHandlerAddress);
|
|
} else {
|
|
typedef orc::LocalJITCompileCallbackManager<orc::OrcX86_64_SysV> CCMgrT;
|
|
return CCMgrT::Create(ES, ErrorHandlerAddress);
|
|
}
|
|
}
|
|
|
|
}
|
|
}
|
|
|
|
std::function<std::unique_ptr<IndirectStubsManager>()>
|
|
createLocalIndirectStubsManagerBuilder(const Triple &T) {
|
|
switch (T.getArch()) {
|
|
default:
|
|
return [](){
|
|
return llvm::make_unique<
|
|
orc::LocalIndirectStubsManager<orc::OrcGenericABI>>();
|
|
};
|
|
|
|
case Triple::aarch64:
|
|
return [](){
|
|
return llvm::make_unique<
|
|
orc::LocalIndirectStubsManager<orc::OrcAArch64>>();
|
|
};
|
|
|
|
case Triple::x86:
|
|
return [](){
|
|
return llvm::make_unique<
|
|
orc::LocalIndirectStubsManager<orc::OrcI386>>();
|
|
};
|
|
|
|
case Triple::mips:
|
|
return [](){
|
|
return llvm::make_unique<
|
|
orc::LocalIndirectStubsManager<orc::OrcMips32Be>>();
|
|
};
|
|
|
|
case Triple::mipsel:
|
|
return [](){
|
|
return llvm::make_unique<
|
|
orc::LocalIndirectStubsManager<orc::OrcMips32Le>>();
|
|
};
|
|
|
|
case Triple::mips64:
|
|
case Triple::mips64el:
|
|
return [](){
|
|
return llvm::make_unique<
|
|
orc::LocalIndirectStubsManager<orc::OrcMips64>>();
|
|
};
|
|
|
|
case Triple::x86_64:
|
|
if (T.getOS() == Triple::OSType::Win32) {
|
|
return [](){
|
|
return llvm::make_unique<
|
|
orc::LocalIndirectStubsManager<orc::OrcX86_64_Win32>>();
|
|
};
|
|
} else {
|
|
return [](){
|
|
return llvm::make_unique<
|
|
orc::LocalIndirectStubsManager<orc::OrcX86_64_SysV>>();
|
|
};
|
|
}
|
|
|
|
}
|
|
}
|
|
|
|
Constant* createIRTypedAddress(FunctionType &FT, JITTargetAddress Addr) {
|
|
Constant *AddrIntVal =
|
|
ConstantInt::get(Type::getInt64Ty(FT.getContext()), Addr);
|
|
Constant *AddrPtrVal =
|
|
ConstantExpr::getCast(Instruction::IntToPtr, AddrIntVal,
|
|
PointerType::get(&FT, 0));
|
|
return AddrPtrVal;
|
|
}
|
|
|
|
GlobalVariable* createImplPointer(PointerType &PT, Module &M,
|
|
const Twine &Name, Constant *Initializer) {
|
|
auto IP = new GlobalVariable(M, &PT, false, GlobalValue::ExternalLinkage,
|
|
Initializer, Name, nullptr,
|
|
GlobalValue::NotThreadLocal, 0, true);
|
|
IP->setVisibility(GlobalValue::HiddenVisibility);
|
|
return IP;
|
|
}
|
|
|
|
void makeStub(Function &F, Value &ImplPointer) {
|
|
assert(F.isDeclaration() && "Can't turn a definition into a stub.");
|
|
assert(F.getParent() && "Function isn't in a module.");
|
|
Module &M = *F.getParent();
|
|
BasicBlock *EntryBlock = BasicBlock::Create(M.getContext(), "entry", &F);
|
|
IRBuilder<> Builder(EntryBlock);
|
|
LoadInst *ImplAddr = Builder.CreateLoad(&ImplPointer);
|
|
std::vector<Value*> CallArgs;
|
|
for (auto &A : F.args())
|
|
CallArgs.push_back(&A);
|
|
CallInst *Call = Builder.CreateCall(ImplAddr, CallArgs);
|
|
Call->setTailCall();
|
|
Call->setAttributes(F.getAttributes());
|
|
if (F.getReturnType()->isVoidTy())
|
|
Builder.CreateRetVoid();
|
|
else
|
|
Builder.CreateRet(Call);
|
|
}
|
|
|
|
std::vector<GlobalValue *> SymbolLinkagePromoter::operator()(Module &M) {
|
|
std::vector<GlobalValue *> PromotedGlobals;
|
|
|
|
for (auto &GV : M.global_values()) {
|
|
bool Promoted = true;
|
|
|
|
// Rename if necessary.
|
|
if (!GV.hasName())
|
|
GV.setName("__orc_anon." + Twine(NextId++));
|
|
else if (GV.getName().startswith("\01L"))
|
|
GV.setName("__" + GV.getName().substr(1) + "." + Twine(NextId++));
|
|
else if (GV.hasLocalLinkage())
|
|
GV.setName("__orc_lcl." + GV.getName() + "." + Twine(NextId++));
|
|
else
|
|
Promoted = false;
|
|
|
|
if (GV.hasLocalLinkage()) {
|
|
GV.setLinkage(GlobalValue::ExternalLinkage);
|
|
GV.setVisibility(GlobalValue::HiddenVisibility);
|
|
Promoted = true;
|
|
}
|
|
GV.setUnnamedAddr(GlobalValue::UnnamedAddr::None);
|
|
|
|
if (Promoted)
|
|
PromotedGlobals.push_back(&GV);
|
|
}
|
|
|
|
return PromotedGlobals;
|
|
}
|
|
|
|
Function* cloneFunctionDecl(Module &Dst, const Function &F,
|
|
ValueToValueMapTy *VMap) {
|
|
Function *NewF =
|
|
Function::Create(cast<FunctionType>(F.getValueType()),
|
|
F.getLinkage(), F.getName(), &Dst);
|
|
NewF->copyAttributesFrom(&F);
|
|
|
|
if (VMap) {
|
|
(*VMap)[&F] = NewF;
|
|
auto NewArgI = NewF->arg_begin();
|
|
for (auto ArgI = F.arg_begin(), ArgE = F.arg_end(); ArgI != ArgE;
|
|
++ArgI, ++NewArgI)
|
|
(*VMap)[&*ArgI] = &*NewArgI;
|
|
}
|
|
|
|
return NewF;
|
|
}
|
|
|
|
void moveFunctionBody(Function &OrigF, ValueToValueMapTy &VMap,
|
|
ValueMaterializer *Materializer,
|
|
Function *NewF) {
|
|
assert(!OrigF.isDeclaration() && "Nothing to move");
|
|
if (!NewF)
|
|
NewF = cast<Function>(VMap[&OrigF]);
|
|
else
|
|
assert(VMap[&OrigF] == NewF && "Incorrect function mapping in VMap.");
|
|
assert(NewF && "Function mapping missing from VMap.");
|
|
assert(NewF->getParent() != OrigF.getParent() &&
|
|
"moveFunctionBody should only be used to move bodies between "
|
|
"modules.");
|
|
|
|
SmallVector<ReturnInst *, 8> Returns; // Ignore returns cloned.
|
|
CloneFunctionInto(NewF, &OrigF, VMap, /*ModuleLevelChanges=*/true, Returns,
|
|
"", nullptr, nullptr, Materializer);
|
|
OrigF.deleteBody();
|
|
}
|
|
|
|
GlobalVariable* cloneGlobalVariableDecl(Module &Dst, const GlobalVariable &GV,
|
|
ValueToValueMapTy *VMap) {
|
|
GlobalVariable *NewGV = new GlobalVariable(
|
|
Dst, GV.getValueType(), GV.isConstant(),
|
|
GV.getLinkage(), nullptr, GV.getName(), nullptr,
|
|
GV.getThreadLocalMode(), GV.getType()->getAddressSpace());
|
|
NewGV->copyAttributesFrom(&GV);
|
|
if (VMap)
|
|
(*VMap)[&GV] = NewGV;
|
|
return NewGV;
|
|
}
|
|
|
|
void moveGlobalVariableInitializer(GlobalVariable &OrigGV,
|
|
ValueToValueMapTy &VMap,
|
|
ValueMaterializer *Materializer,
|
|
GlobalVariable *NewGV) {
|
|
assert(OrigGV.hasInitializer() && "Nothing to move");
|
|
if (!NewGV)
|
|
NewGV = cast<GlobalVariable>(VMap[&OrigGV]);
|
|
else
|
|
assert(VMap[&OrigGV] == NewGV &&
|
|
"Incorrect global variable mapping in VMap.");
|
|
assert(NewGV->getParent() != OrigGV.getParent() &&
|
|
"moveGlobalVariableInitializer should only be used to move "
|
|
"initializers between modules");
|
|
|
|
NewGV->setInitializer(MapValue(OrigGV.getInitializer(), VMap, RF_None,
|
|
nullptr, Materializer));
|
|
}
|
|
|
|
GlobalAlias* cloneGlobalAliasDecl(Module &Dst, const GlobalAlias &OrigA,
|
|
ValueToValueMapTy &VMap) {
|
|
assert(OrigA.getAliasee() && "Original alias doesn't have an aliasee?");
|
|
auto *NewA = GlobalAlias::create(OrigA.getValueType(),
|
|
OrigA.getType()->getPointerAddressSpace(),
|
|
OrigA.getLinkage(), OrigA.getName(), &Dst);
|
|
NewA->copyAttributesFrom(&OrigA);
|
|
VMap[&OrigA] = NewA;
|
|
return NewA;
|
|
}
|
|
|
|
void cloneModuleFlagsMetadata(Module &Dst, const Module &Src,
|
|
ValueToValueMapTy &VMap) {
|
|
auto *MFs = Src.getModuleFlagsMetadata();
|
|
if (!MFs)
|
|
return;
|
|
for (auto *MF : MFs->operands())
|
|
Dst.addModuleFlag(MapMetadata(MF, VMap));
|
|
}
|
|
|
|
} // End namespace orc.
|
|
} // End namespace llvm.
|