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archived-llvm/include/llvm/ExecutionEngine/Orc/OrcRemoteTargetClient.h
Jonas Devlieghere 114087caa6 [llvm] Migrate llvm::make_unique to std::make_unique 
Now that we've moved to C++14, we no longer need the llvm::make_unique
implementation from STLExtras.h. This patch is a mechanical replacement
of (hopefully) all the llvm::make_unique instances across the monorepo.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@369013 91177308-0d34-0410-b5e6-96231b3b80d8
2019-08-15 15:54:37 +00:00

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//===- OrcRemoteTargetClient.h - Orc Remote-target Client -------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This file defines the OrcRemoteTargetClient class and helpers. This class
// can be used to communicate over an RawByteChannel with an
// OrcRemoteTargetServer instance to support remote-JITing.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_EXECUTIONENGINE_ORC_ORCREMOTETARGETCLIENT_H
#define LLVM_EXECUTIONENGINE_ORC_ORCREMOTETARGETCLIENT_H
#include "llvm/ADT/Optional.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/ADT/StringMap.h"
#include "llvm/ADT/StringRef.h"
#include "llvm/ExecutionEngine/JITSymbol.h"
#include "llvm/ExecutionEngine/Orc/IndirectionUtils.h"
#include "llvm/ExecutionEngine/Orc/OrcRemoteTargetRPCAPI.h"
#include "llvm/ExecutionEngine/RuntimeDyld.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/Error.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/Format.h"
#include "llvm/Support/MathExtras.h"
#include "llvm/Support/Memory.h"
#include "llvm/Support/raw_ostream.h"
#include <algorithm>
#include <cassert>
#include <cstdint>
#include <memory>
#include <string>
#include <tuple>
#include <utility>
#include <vector>
#define DEBUG_TYPE "orc-remote"
namespace llvm {
namespace orc {
namespace remote {
/// This class provides utilities (including memory manager, indirect stubs
/// manager, and compile callback manager types) that support remote JITing
/// in ORC.
///
/// Each of the utility classes talks to a JIT server (an instance of the
/// OrcRemoteTargetServer class) via an RPC system (see RPCUtils.h) to carry out
/// its actions.
class OrcRemoteTargetClient
: public rpc::SingleThreadedRPCEndpoint<rpc::RawByteChannel> {
public:
/// Remote-mapped RuntimeDyld-compatible memory manager.
class RemoteRTDyldMemoryManager : public RuntimeDyld::MemoryManager {
friend class OrcRemoteTargetClient;
public:
~RemoteRTDyldMemoryManager() {
Client.destroyRemoteAllocator(Id);
LLVM_DEBUG(dbgs() << "Destroyed remote allocator " << Id << "\n");
}
RemoteRTDyldMemoryManager(const RemoteRTDyldMemoryManager &) = delete;
RemoteRTDyldMemoryManager &
operator=(const RemoteRTDyldMemoryManager &) = delete;
RemoteRTDyldMemoryManager(RemoteRTDyldMemoryManager &&) = default;
RemoteRTDyldMemoryManager &operator=(RemoteRTDyldMemoryManager &&) = delete;
uint8_t *allocateCodeSection(uintptr_t Size, unsigned Alignment,
unsigned SectionID,
StringRef SectionName) override {
Unmapped.back().CodeAllocs.emplace_back(Size, Alignment);
uint8_t *Alloc = reinterpret_cast<uint8_t *>(
Unmapped.back().CodeAllocs.back().getLocalAddress());
LLVM_DEBUG(dbgs() << "Allocator " << Id << " allocated code for "
<< SectionName << ": " << Alloc << " (" << Size
<< " bytes, alignment " << Alignment << ")\n");
return Alloc;
}
uint8_t *allocateDataSection(uintptr_t Size, unsigned Alignment,
unsigned SectionID, StringRef SectionName,
bool IsReadOnly) override {
if (IsReadOnly) {
Unmapped.back().RODataAllocs.emplace_back(Size, Alignment);
uint8_t *Alloc = reinterpret_cast<uint8_t *>(
Unmapped.back().RODataAllocs.back().getLocalAddress());
LLVM_DEBUG(dbgs() << "Allocator " << Id << " allocated ro-data for "
<< SectionName << ": " << Alloc << " (" << Size
<< " bytes, alignment " << Alignment << ")\n");
return Alloc;
} // else...
Unmapped.back().RWDataAllocs.emplace_back(Size, Alignment);
uint8_t *Alloc = reinterpret_cast<uint8_t *>(
Unmapped.back().RWDataAllocs.back().getLocalAddress());
LLVM_DEBUG(dbgs() << "Allocator " << Id << " allocated rw-data for "
<< SectionName << ": " << Alloc << " (" << Size
<< " bytes, alignment " << Alignment << ")\n");
return Alloc;
}
void reserveAllocationSpace(uintptr_t CodeSize, uint32_t CodeAlign,
uintptr_t RODataSize, uint32_t RODataAlign,
uintptr_t RWDataSize,
uint32_t RWDataAlign) override {
Unmapped.push_back(ObjectAllocs());
LLVM_DEBUG(dbgs() << "Allocator " << Id << " reserved:\n");
if (CodeSize != 0) {
Unmapped.back().RemoteCodeAddr =
Client.reserveMem(Id, CodeSize, CodeAlign);
LLVM_DEBUG(
dbgs() << " code: "
<< format("0x%016" PRIx64, Unmapped.back().RemoteCodeAddr)
<< " (" << CodeSize << " bytes, alignment " << CodeAlign
<< ")\n");
}
if (RODataSize != 0) {
Unmapped.back().RemoteRODataAddr =
Client.reserveMem(Id, RODataSize, RODataAlign);
LLVM_DEBUG(
dbgs() << " ro-data: "
<< format("0x%016" PRIx64, Unmapped.back().RemoteRODataAddr)
<< " (" << RODataSize << " bytes, alignment " << RODataAlign
<< ")\n");
}
if (RWDataSize != 0) {
Unmapped.back().RemoteRWDataAddr =
Client.reserveMem(Id, RWDataSize, RWDataAlign);
LLVM_DEBUG(
dbgs() << " rw-data: "
<< format("0x%016" PRIx64, Unmapped.back().RemoteRWDataAddr)
<< " (" << RWDataSize << " bytes, alignment " << RWDataAlign
<< ")\n");
}
}
bool needsToReserveAllocationSpace() override { return true; }
void registerEHFrames(uint8_t *Addr, uint64_t LoadAddr,
size_t Size) override {
UnfinalizedEHFrames.push_back({LoadAddr, Size});
}
void deregisterEHFrames() override {
for (auto &Frame : RegisteredEHFrames) {
// FIXME: Add error poll.
Client.deregisterEHFrames(Frame.Addr, Frame.Size);
}
}
void notifyObjectLoaded(RuntimeDyld &Dyld,
const object::ObjectFile &Obj) override {
LLVM_DEBUG(dbgs() << "Allocator " << Id << " applied mappings:\n");
for (auto &ObjAllocs : Unmapped) {
mapAllocsToRemoteAddrs(Dyld, ObjAllocs.CodeAllocs,
ObjAllocs.RemoteCodeAddr);
mapAllocsToRemoteAddrs(Dyld, ObjAllocs.RODataAllocs,
ObjAllocs.RemoteRODataAddr);
mapAllocsToRemoteAddrs(Dyld, ObjAllocs.RWDataAllocs,
ObjAllocs.RemoteRWDataAddr);
Unfinalized.push_back(std::move(ObjAllocs));
}
Unmapped.clear();
}
bool finalizeMemory(std::string *ErrMsg = nullptr) override {
LLVM_DEBUG(dbgs() << "Allocator " << Id << " finalizing:\n");
for (auto &ObjAllocs : Unfinalized) {
if (copyAndProtect(ObjAllocs.CodeAllocs, ObjAllocs.RemoteCodeAddr,
sys::Memory::MF_READ | sys::Memory::MF_EXEC))
return true;
if (copyAndProtect(ObjAllocs.RODataAllocs, ObjAllocs.RemoteRODataAddr,
sys::Memory::MF_READ))
return true;
if (copyAndProtect(ObjAllocs.RWDataAllocs, ObjAllocs.RemoteRWDataAddr,
sys::Memory::MF_READ | sys::Memory::MF_WRITE))
return true;
}
Unfinalized.clear();
for (auto &EHFrame : UnfinalizedEHFrames) {
if (auto Err = Client.registerEHFrames(EHFrame.Addr, EHFrame.Size)) {
// FIXME: Replace this once finalizeMemory can return an Error.
handleAllErrors(std::move(Err), [&](ErrorInfoBase &EIB) {
if (ErrMsg) {
raw_string_ostream ErrOut(*ErrMsg);
EIB.log(ErrOut);
}
});
return false;
}
}
RegisteredEHFrames = std::move(UnfinalizedEHFrames);
UnfinalizedEHFrames = {};
return false;
}
private:
class Alloc {
public:
Alloc(uint64_t Size, unsigned Align)
: Size(Size), Align(Align), Contents(new char[Size + Align - 1]) {}
Alloc(const Alloc &) = delete;
Alloc &operator=(const Alloc &) = delete;
Alloc(Alloc &&) = default;
Alloc &operator=(Alloc &&) = default;
uint64_t getSize() const { return Size; }
unsigned getAlign() const { return Align; }
char *getLocalAddress() const {
uintptr_t LocalAddr = reinterpret_cast<uintptr_t>(Contents.get());
LocalAddr = alignTo(LocalAddr, Align);
return reinterpret_cast<char *>(LocalAddr);
}
void setRemoteAddress(JITTargetAddress RemoteAddr) {
this->RemoteAddr = RemoteAddr;
}
JITTargetAddress getRemoteAddress() const { return RemoteAddr; }
private:
uint64_t Size;
unsigned Align;
std::unique_ptr<char[]> Contents;
JITTargetAddress RemoteAddr = 0;
};
struct ObjectAllocs {
ObjectAllocs() = default;
ObjectAllocs(const ObjectAllocs &) = delete;
ObjectAllocs &operator=(const ObjectAllocs &) = delete;
ObjectAllocs(ObjectAllocs &&) = default;
ObjectAllocs &operator=(ObjectAllocs &&) = default;
JITTargetAddress RemoteCodeAddr = 0;
JITTargetAddress RemoteRODataAddr = 0;
JITTargetAddress RemoteRWDataAddr = 0;
std::vector<Alloc> CodeAllocs, RODataAllocs, RWDataAllocs;
};
RemoteRTDyldMemoryManager(OrcRemoteTargetClient &Client,
ResourceIdMgr::ResourceId Id)
: Client(Client), Id(Id) {
LLVM_DEBUG(dbgs() << "Created remote allocator " << Id << "\n");
}
// Maps all allocations in Allocs to aligned blocks
void mapAllocsToRemoteAddrs(RuntimeDyld &Dyld, std::vector<Alloc> &Allocs,
JITTargetAddress NextAddr) {
for (auto &Alloc : Allocs) {
NextAddr = alignTo(NextAddr, Alloc.getAlign());
Dyld.mapSectionAddress(Alloc.getLocalAddress(), NextAddr);
LLVM_DEBUG(
dbgs() << " " << static_cast<void *>(Alloc.getLocalAddress())
<< " -> " << format("0x%016" PRIx64, NextAddr) << "\n");
Alloc.setRemoteAddress(NextAddr);
// Only advance NextAddr if it was non-null to begin with,
// otherwise leave it as null.
if (NextAddr)
NextAddr += Alloc.getSize();
}
}
// Copies data for each alloc in the list, then set permissions on the
// segment.
bool copyAndProtect(const std::vector<Alloc> &Allocs,
JITTargetAddress RemoteSegmentAddr,
unsigned Permissions) {
if (RemoteSegmentAddr) {
assert(!Allocs.empty() && "No sections in allocated segment");
for (auto &Alloc : Allocs) {
LLVM_DEBUG(dbgs() << " copying section: "
<< static_cast<void *>(Alloc.getLocalAddress())
<< " -> "
<< format("0x%016" PRIx64, Alloc.getRemoteAddress())
<< " (" << Alloc.getSize() << " bytes)\n";);
if (Client.writeMem(Alloc.getRemoteAddress(), Alloc.getLocalAddress(),
Alloc.getSize()))
return true;
}
LLVM_DEBUG(dbgs() << " setting "
<< (Permissions & sys::Memory::MF_READ ? 'R' : '-')
<< (Permissions & sys::Memory::MF_WRITE ? 'W' : '-')
<< (Permissions & sys::Memory::MF_EXEC ? 'X' : '-')
<< " permissions on block: "
<< format("0x%016" PRIx64, RemoteSegmentAddr)
<< "\n");
if (Client.setProtections(Id, RemoteSegmentAddr, Permissions))
return true;
}
return false;
}
OrcRemoteTargetClient &Client;
ResourceIdMgr::ResourceId Id;
std::vector<ObjectAllocs> Unmapped;
std::vector<ObjectAllocs> Unfinalized;
struct EHFrame {
JITTargetAddress Addr;
uint64_t Size;
};
std::vector<EHFrame> UnfinalizedEHFrames;
std::vector<EHFrame> RegisteredEHFrames;
};
/// Remote indirect stubs manager.
class RemoteIndirectStubsManager : public IndirectStubsManager {
public:
RemoteIndirectStubsManager(OrcRemoteTargetClient &Client,
ResourceIdMgr::ResourceId Id)
: Client(Client), Id(Id) {}
~RemoteIndirectStubsManager() override {
Client.destroyIndirectStubsManager(Id);
}
Error createStub(StringRef StubName, JITTargetAddress StubAddr,
JITSymbolFlags StubFlags) override {
if (auto Err = reserveStubs(1))
return Err;
return createStubInternal(StubName, StubAddr, StubFlags);
}
Error createStubs(const StubInitsMap &StubInits) override {
if (auto Err = reserveStubs(StubInits.size()))
return Err;
for (auto &Entry : StubInits)
if (auto Err = createStubInternal(Entry.first(), Entry.second.first,
Entry.second.second))
return Err;
return Error::success();
}
JITEvaluatedSymbol findStub(StringRef Name, bool ExportedStubsOnly) override {
auto I = StubIndexes.find(Name);
if (I == StubIndexes.end())
return nullptr;
auto Key = I->second.first;
auto Flags = I->second.second;
auto StubSymbol = JITEvaluatedSymbol(getStubAddr(Key), Flags);
if (ExportedStubsOnly && !StubSymbol.getFlags().isExported())
return nullptr;
return StubSymbol;
}
JITEvaluatedSymbol findPointer(StringRef Name) override {
auto I = StubIndexes.find(Name);
if (I == StubIndexes.end())
return nullptr;
auto Key = I->second.first;
auto Flags = I->second.second;
return JITEvaluatedSymbol(getPtrAddr(Key), Flags);
}
Error updatePointer(StringRef Name, JITTargetAddress NewAddr) override {
auto I = StubIndexes.find(Name);
assert(I != StubIndexes.end() && "No stub pointer for symbol");
auto Key = I->second.first;
return Client.writePointer(getPtrAddr(Key), NewAddr);
}
private:
struct RemoteIndirectStubsInfo {
JITTargetAddress StubBase;
JITTargetAddress PtrBase;
unsigned NumStubs;
};
using StubKey = std::pair<uint16_t, uint16_t>;
Error reserveStubs(unsigned NumStubs) {
if (NumStubs <= FreeStubs.size())
return Error::success();
unsigned NewStubsRequired = NumStubs - FreeStubs.size();
JITTargetAddress StubBase;
JITTargetAddress PtrBase;
unsigned NumStubsEmitted;
if (auto StubInfoOrErr = Client.emitIndirectStubs(Id, NewStubsRequired))
std::tie(StubBase, PtrBase, NumStubsEmitted) = *StubInfoOrErr;
else
return StubInfoOrErr.takeError();
unsigned NewBlockId = RemoteIndirectStubsInfos.size();
RemoteIndirectStubsInfos.push_back({StubBase, PtrBase, NumStubsEmitted});
for (unsigned I = 0; I < NumStubsEmitted; ++I)
FreeStubs.push_back(std::make_pair(NewBlockId, I));
return Error::success();
}
Error createStubInternal(StringRef StubName, JITTargetAddress InitAddr,
JITSymbolFlags StubFlags) {
auto Key = FreeStubs.back();
FreeStubs.pop_back();
StubIndexes[StubName] = std::make_pair(Key, StubFlags);
return Client.writePointer(getPtrAddr(Key), InitAddr);
}
JITTargetAddress getStubAddr(StubKey K) {
assert(RemoteIndirectStubsInfos[K.first].StubBase != 0 &&
"Missing stub address");
return RemoteIndirectStubsInfos[K.first].StubBase +
K.second * Client.getIndirectStubSize();
}
JITTargetAddress getPtrAddr(StubKey K) {
assert(RemoteIndirectStubsInfos[K.first].PtrBase != 0 &&
"Missing pointer address");
return RemoteIndirectStubsInfos[K.first].PtrBase +
K.second * Client.getPointerSize();
}
OrcRemoteTargetClient &Client;
ResourceIdMgr::ResourceId Id;
std::vector<RemoteIndirectStubsInfo> RemoteIndirectStubsInfos;
std::vector<StubKey> FreeStubs;
StringMap<std::pair<StubKey, JITSymbolFlags>> StubIndexes;
};
class RemoteTrampolinePool : public TrampolinePool {
public:
RemoteTrampolinePool(OrcRemoteTargetClient &Client) : Client(Client) {}
Expected<JITTargetAddress> getTrampoline() override {
std::lock_guard<std::mutex> Lock(RTPMutex);
if (AvailableTrampolines.empty()) {
if (auto Err = grow())
return std::move(Err);
}
assert(!AvailableTrampolines.empty() && "Failed to grow trampoline pool");
auto TrampolineAddr = AvailableTrampolines.back();
AvailableTrampolines.pop_back();
return TrampolineAddr;
}
private:
Error grow() {
JITTargetAddress BlockAddr = 0;
uint32_t NumTrampolines = 0;
if (auto TrampolineInfoOrErr = Client.emitTrampolineBlock())
std::tie(BlockAddr, NumTrampolines) = *TrampolineInfoOrErr;
else
return TrampolineInfoOrErr.takeError();
uint32_t TrampolineSize = Client.getTrampolineSize();
for (unsigned I = 0; I < NumTrampolines; ++I)
this->AvailableTrampolines.push_back(BlockAddr + (I * TrampolineSize));
return Error::success();
}
std::mutex RTPMutex;
OrcRemoteTargetClient &Client;
std::vector<JITTargetAddress> AvailableTrampolines;
};
/// Remote compile callback manager.
class RemoteCompileCallbackManager : public JITCompileCallbackManager {
public:
RemoteCompileCallbackManager(OrcRemoteTargetClient &Client,
ExecutionSession &ES,
JITTargetAddress ErrorHandlerAddress)
: JITCompileCallbackManager(
std::make_unique<RemoteTrampolinePool>(Client), ES,
ErrorHandlerAddress) {}
};
/// Create an OrcRemoteTargetClient.
/// Channel is the ChannelT instance to communicate on. It is assumed that
/// the channel is ready to be read from and written to.
static Expected<std::unique_ptr<OrcRemoteTargetClient>>
Create(rpc::RawByteChannel &Channel, ExecutionSession &ES) {
Error Err = Error::success();
auto Client = std::unique_ptr<OrcRemoteTargetClient>(
new OrcRemoteTargetClient(Channel, ES, Err));
if (Err)
return std::move(Err);
return std::move(Client);
}
/// Call the int(void) function at the given address in the target and return
/// its result.
Expected<int> callIntVoid(JITTargetAddress Addr) {
LLVM_DEBUG(dbgs() << "Calling int(*)(void) "
<< format("0x%016" PRIx64, Addr) << "\n");
return callB<exec::CallIntVoid>(Addr);
}
/// Call the int(int, char*[]) function at the given address in the target and
/// return its result.
Expected<int> callMain(JITTargetAddress Addr,
const std::vector<std::string> &Args) {
LLVM_DEBUG(dbgs() << "Calling int(*)(int, char*[]) "
<< format("0x%016" PRIx64, Addr) << "\n");
return callB<exec::CallMain>(Addr, Args);
}
/// Call the void() function at the given address in the target and wait for
/// it to finish.
Error callVoidVoid(JITTargetAddress Addr) {
LLVM_DEBUG(dbgs() << "Calling void(*)(void) "
<< format("0x%016" PRIx64, Addr) << "\n");
return callB<exec::CallVoidVoid>(Addr);
}
/// Create an RCMemoryManager which will allocate its memory on the remote
/// target.
Expected<std::unique_ptr<RemoteRTDyldMemoryManager>>
createRemoteMemoryManager() {
auto Id = AllocatorIds.getNext();
if (auto Err = callB<mem::CreateRemoteAllocator>(Id))
return std::move(Err);
return std::unique_ptr<RemoteRTDyldMemoryManager>(
new RemoteRTDyldMemoryManager(*this, Id));
}
/// Create an RCIndirectStubsManager that will allocate stubs on the remote
/// target.
Expected<std::unique_ptr<RemoteIndirectStubsManager>>
createIndirectStubsManager() {
auto Id = IndirectStubOwnerIds.getNext();
if (auto Err = callB<stubs::CreateIndirectStubsOwner>(Id))
return std::move(Err);
return std::make_unique<RemoteIndirectStubsManager>(*this, Id);
}
Expected<RemoteCompileCallbackManager &>
enableCompileCallbacks(JITTargetAddress ErrorHandlerAddress) {
assert(!CallbackManager && "CallbackManager already obtained");
// Emit the resolver block on the JIT server.
if (auto Err = callB<stubs::EmitResolverBlock>())
return std::move(Err);
// Create the callback manager.
CallbackManager.emplace(*this, ES, ErrorHandlerAddress);
RemoteCompileCallbackManager &Mgr = *CallbackManager;
return Mgr;
}
/// Search for symbols in the remote process. Note: This should be used by
/// symbol resolvers *after* they've searched the local symbol table in the
/// JIT stack.
Expected<JITTargetAddress> getSymbolAddress(StringRef Name) {
return callB<utils::GetSymbolAddress>(Name);
}
/// Get the triple for the remote target.
const std::string &getTargetTriple() const { return RemoteTargetTriple; }
Error terminateSession() { return callB<utils::TerminateSession>(); }
private:
OrcRemoteTargetClient(rpc::RawByteChannel &Channel, ExecutionSession &ES,
Error &Err)
: rpc::SingleThreadedRPCEndpoint<rpc::RawByteChannel>(Channel, true),
ES(ES) {
ErrorAsOutParameter EAO(&Err);
addHandler<utils::RequestCompile>(
[this](JITTargetAddress Addr) -> JITTargetAddress {
if (CallbackManager)
return CallbackManager->executeCompileCallback(Addr);
return 0;
});
if (auto RIOrErr = callB<utils::GetRemoteInfo>()) {
std::tie(RemoteTargetTriple, RemotePointerSize, RemotePageSize,
RemoteTrampolineSize, RemoteIndirectStubSize) = *RIOrErr;
Err = Error::success();
} else
Err = RIOrErr.takeError();
}
void deregisterEHFrames(JITTargetAddress Addr, uint32_t Size) {
if (auto Err = callB<eh::RegisterEHFrames>(Addr, Size))
ES.reportError(std::move(Err));
}
void destroyRemoteAllocator(ResourceIdMgr::ResourceId Id) {
if (auto Err = callB<mem::DestroyRemoteAllocator>(Id)) {
// FIXME: This will be triggered by a removeModuleSet call: Propagate
// error return up through that.
llvm_unreachable("Failed to destroy remote allocator.");
AllocatorIds.release(Id);
}
}
void destroyIndirectStubsManager(ResourceIdMgr::ResourceId Id) {
IndirectStubOwnerIds.release(Id);
if (auto Err = callB<stubs::DestroyIndirectStubsOwner>(Id))
ES.reportError(std::move(Err));
}
Expected<std::tuple<JITTargetAddress, JITTargetAddress, uint32_t>>
emitIndirectStubs(ResourceIdMgr::ResourceId Id, uint32_t NumStubsRequired) {
return callB<stubs::EmitIndirectStubs>(Id, NumStubsRequired);
}
Expected<std::tuple<JITTargetAddress, uint32_t>> emitTrampolineBlock() {
return callB<stubs::EmitTrampolineBlock>();
}
uint32_t getIndirectStubSize() const { return RemoteIndirectStubSize; }
uint32_t getPageSize() const { return RemotePageSize; }
uint32_t getPointerSize() const { return RemotePointerSize; }
uint32_t getTrampolineSize() const { return RemoteTrampolineSize; }
Expected<std::vector<uint8_t>> readMem(char *Dst, JITTargetAddress Src,
uint64_t Size) {
return callB<mem::ReadMem>(Src, Size);
}
Error registerEHFrames(JITTargetAddress &RAddr, uint32_t Size) {
// FIXME: Duplicate error and report it via ReportError too?
return callB<eh::RegisterEHFrames>(RAddr, Size);
}
JITTargetAddress reserveMem(ResourceIdMgr::ResourceId Id, uint64_t Size,
uint32_t Align) {
if (auto AddrOrErr = callB<mem::ReserveMem>(Id, Size, Align))
return *AddrOrErr;
else {
ES.reportError(AddrOrErr.takeError());
return 0;
}
}
bool setProtections(ResourceIdMgr::ResourceId Id,
JITTargetAddress RemoteSegAddr, unsigned ProtFlags) {
if (auto Err = callB<mem::SetProtections>(Id, RemoteSegAddr, ProtFlags)) {
ES.reportError(std::move(Err));
return true;
} else
return false;
}
bool writeMem(JITTargetAddress Addr, const char *Src, uint64_t Size) {
if (auto Err = callB<mem::WriteMem>(DirectBufferWriter(Src, Addr, Size))) {
ES.reportError(std::move(Err));
return true;
} else
return false;
}
Error writePointer(JITTargetAddress Addr, JITTargetAddress PtrVal) {
return callB<mem::WritePtr>(Addr, PtrVal);
}
static Error doNothing() { return Error::success(); }
ExecutionSession &ES;
std::function<void(Error)> ReportError;
std::string RemoteTargetTriple;
uint32_t RemotePointerSize = 0;
uint32_t RemotePageSize = 0;
uint32_t RemoteTrampolineSize = 0;
uint32_t RemoteIndirectStubSize = 0;
ResourceIdMgr AllocatorIds, IndirectStubOwnerIds;
Optional<RemoteCompileCallbackManager> CallbackManager;
};
} // end namespace remote
} // end namespace orc
} // end namespace llvm
#undef DEBUG_TYPE
#endif // LLVM_EXECUTIONENGINE_ORC_ORCREMOTETARGETCLIENT_H
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