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//===---- ExecutorProcessControl.cpp -- Executor process control APIs -----===//
//
// 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
//
//===----------------------------------------------------------------------===//
#include "llvm/ExecutionEngine/Orc/ExecutorProcessControl.h"
#include "llvm/ExecutionEngine/Orc/Core.h"
#include "llvm/ExecutionEngine/Orc/TargetProcess/TargetExecutionUtils.h"
#include "llvm/Support/FormatVariadic.h"
#include "llvm/Support/Host.h"
#include "llvm/Support/Process.h"
#define DEBUG_TYPE "orc"
namespace llvm {
namespace orc {
ExecutorProcessControl::MemoryAccess::~MemoryAccess() {}
ExecutorProcessControl::~ExecutorProcessControl() {}
SelfExecutorProcessControl::SelfExecutorProcessControl(
std::shared_ptr<SymbolStringPool> SSP, std::unique_ptr<TaskDispatcher> D,
Triple TargetTriple, unsigned PageSize,
std::unique_ptr<jitlink::JITLinkMemoryManager> MemMgr)
: ExecutorProcessControl(std::move(SSP), std::move(D)) {
OwnedMemMgr = std::move(MemMgr);
if (!OwnedMemMgr)
OwnedMemMgr = std::make_unique<jitlink::InProcessMemoryManager>(
sys::Process::getPageSizeEstimate());
this->TargetTriple = std::move(TargetTriple);
this->PageSize = PageSize;
this->MemMgr = OwnedMemMgr.get();
this->MemAccess = this;
this->JDI = {ExecutorAddr::fromPtr(jitDispatchViaWrapperFunctionManager),
ExecutorAddr::fromPtr(this)};
if (this->TargetTriple.isOSBinFormatMachO())
GlobalManglingPrefix = '_';
}
Expected<std::unique_ptr<SelfExecutorProcessControl>>
SelfExecutorProcessControl::Create(
std::shared_ptr<SymbolStringPool> SSP,
std::unique_ptr<TaskDispatcher> D,
std::unique_ptr<jitlink::JITLinkMemoryManager> MemMgr) {
if (!SSP)
SSP = std::make_shared<SymbolStringPool>();
if (!D) {
#if LLVM_ENABLE_THREADS
D = std::make_unique<DynamicThreadPoolTaskDispatcher>();
#else
D = std::make_unique<InPlaceTaskDispatcher>();
#endif
}
auto PageSize = sys::Process::getPageSize();
if (!PageSize)
return PageSize.takeError();
Triple TT(sys::getProcessTriple());
return std::make_unique<SelfExecutorProcessControl>(
std::move(SSP), std::move(D), std::move(TT), *PageSize,
std::move(MemMgr));
}
Expected<tpctypes::DylibHandle>
SelfExecutorProcessControl::loadDylib(const char *DylibPath) {
std::string ErrMsg;
auto Dylib = std::make_unique<sys::DynamicLibrary>(
sys::DynamicLibrary::getPermanentLibrary(DylibPath, &ErrMsg));
if (!Dylib->isValid())
return make_error<StringError>(std::move(ErrMsg), inconvertibleErrorCode());
DynamicLibraries.push_back(std::move(Dylib));
return pointerToJITTargetAddress(DynamicLibraries.back().get());
}
Expected<std::vector<tpctypes::LookupResult>>
SelfExecutorProcessControl::lookupSymbols(ArrayRef<LookupRequest> Request) {
std::vector<tpctypes::LookupResult> R;
for (auto &Elem : Request) {
auto *Dylib = jitTargetAddressToPointer<sys::DynamicLibrary *>(Elem.Handle);
assert(llvm::any_of(DynamicLibraries,
[=](const std::unique_ptr<sys::DynamicLibrary> &DL) {
return DL.get() == Dylib;
}) &&
"Invalid handle");
R.push_back(std::vector<JITTargetAddress>());
for (auto &KV : Elem.Symbols) {
auto &Sym = KV.first;
std::string Tmp((*Sym).data() + !!GlobalManglingPrefix,
(*Sym).size() - !!GlobalManglingPrefix);
void *Addr = Dylib->getAddressOfSymbol(Tmp.c_str());
if (!Addr && KV.second == SymbolLookupFlags::RequiredSymbol) {
// FIXME: Collect all failing symbols before erroring out.
SymbolNameVector MissingSymbols;
MissingSymbols.push_back(Sym);
return make_error<SymbolsNotFound>(SSP, std::move(MissingSymbols));
}
R.back().push_back(pointerToJITTargetAddress(Addr));
}
}
return R;
}
Expected<int32_t>
SelfExecutorProcessControl::runAsMain(ExecutorAddr MainFnAddr,
ArrayRef<std::string> Args) {
using MainTy = int (*)(int, char *[]);
return orc::runAsMain(MainFnAddr.toPtr<MainTy>(), Args);
}
void SelfExecutorProcessControl::callWrapperAsync(ExecutorAddr WrapperFnAddr,
IncomingWFRHandler SendResult,
ArrayRef<char> ArgBuffer) {
using WrapperFnTy =
shared::CWrapperFunctionResult (*)(const char *Data, size_t Size);
auto *WrapperFn = WrapperFnAddr.toPtr<WrapperFnTy>();
SendResult(WrapperFn(ArgBuffer.data(), ArgBuffer.size()));
}
Error SelfExecutorProcessControl::disconnect() {
D->shutdown();
return Error::success();
}
void SelfExecutorProcessControl::writeUInt8sAsync(
ArrayRef<tpctypes::UInt8Write> Ws, WriteResultFn OnWriteComplete) {
for (auto &W : Ws)
*W.Addr.toPtr<uint8_t *>() = W.Value;
OnWriteComplete(Error::success());
}
void SelfExecutorProcessControl::writeUInt16sAsync(
ArrayRef<tpctypes::UInt16Write> Ws, WriteResultFn OnWriteComplete) {
for (auto &W : Ws)
*W.Addr.toPtr<uint16_t *>() = W.Value;
OnWriteComplete(Error::success());
}
void SelfExecutorProcessControl::writeUInt32sAsync(
ArrayRef<tpctypes::UInt32Write> Ws, WriteResultFn OnWriteComplete) {
for (auto &W : Ws)
*W.Addr.toPtr<uint32_t *>() = W.Value;
OnWriteComplete(Error::success());
}
void SelfExecutorProcessControl::writeUInt64sAsync(
ArrayRef<tpctypes::UInt64Write> Ws, WriteResultFn OnWriteComplete) {
for (auto &W : Ws)
*W.Addr.toPtr<uint64_t *>() = W.Value;
OnWriteComplete(Error::success());
}
void SelfExecutorProcessControl::writeBuffersAsync(
ArrayRef<tpctypes::BufferWrite> Ws, WriteResultFn OnWriteComplete) {
for (auto &W : Ws)
memcpy(W.Addr.toPtr<char *>(), W.Buffer.data(), W.Buffer.size());
OnWriteComplete(Error::success());
}
shared::CWrapperFunctionResult
SelfExecutorProcessControl::jitDispatchViaWrapperFunctionManager(
void *Ctx, const void *FnTag, const char *Data, size_t Size) {
LLVM_DEBUG({
dbgs() << "jit-dispatch call with tag " << FnTag << " and " << Size
<< " byte payload.\n";
});
std::promise<shared::WrapperFunctionResult> ResultP;
auto ResultF = ResultP.get_future();
static_cast<SelfExecutorProcessControl *>(Ctx)
->getExecutionSession()
.runJITDispatchHandler(
[ResultP = std::move(ResultP)](
shared::WrapperFunctionResult Result) mutable {
ResultP.set_value(std::move(Result));
},
pointerToJITTargetAddress(FnTag), {Data, Size});
return ResultF.get().release();
}
} // end namespace orc
} // end namespace llvm
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