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//===--- SimpleExecutorDylibManager.cpp - Executor-side dylib management --===//
//
// 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/TargetProcess/SimpleExecutorDylibManager.h"
#include "llvm/ExecutionEngine/Orc/Shared/OrcRTBridge.h"
#include "llvm/Support/MSVCErrorWorkarounds.h"
#include <future>
#define DEBUG_TYPE "orc"
namespace llvm {
namespace orc {
namespace rt_bootstrap {
SimpleExecutorDylibManager::~SimpleExecutorDylibManager() {
assert(Dylibs.empty() && "shutdown not called?");
}
Expected<tpctypes::DylibHandle>
SimpleExecutorDylibManager::open(const std::string &Path, uint64_t Mode) {
if (Mode != 0)
return make_error<StringError>("open: non-zero mode bits not yet supported",
inconvertibleErrorCode());
const char *PathCStr = Path.empty() ? nullptr : Path.c_str();
std::string ErrMsg;
auto DL = sys::DynamicLibrary::getPermanentLibrary(PathCStr, &ErrMsg);
if (!DL.isValid())
return make_error<StringError>(std::move(ErrMsg), inconvertibleErrorCode());
std::lock_guard<std::mutex> Lock(M);
auto H = ExecutorAddr::fromPtr(DL.getOSSpecificHandle());
Resolvers.push_back(std::make_unique<DylibSymbolResolver>(H));
Dylibs.insert(DL.getOSSpecificHandle());
return ExecutorAddr::fromPtr(Resolvers.back().get());
}
Error SimpleExecutorDylibManager::shutdown() {
DylibSet DS;
{
std::lock_guard<std::mutex> Lock(M);
std::swap(DS, Dylibs);
}
// There is no removal of dylibs at the moment, so nothing to do here.
return Error::success();
}
void SimpleExecutorDylibManager::addBootstrapSymbols(
StringMap<ExecutorAddr> &M) {
M[rt::SimpleExecutorDylibManagerInstanceName] = ExecutorAddr::fromPtr(this);
M[rt::SimpleExecutorDylibManagerOpenWrapperName] =
ExecutorAddr::fromPtr(&openWrapper);
M[rt::SimpleExecutorDylibManagerResolveWrapperName] =
ExecutorAddr::fromPtr(&resolveWrapper);
}
llvm::orc::shared::CWrapperFunctionBuffer
SimpleExecutorDylibManager::openWrapper(const char *ArgData, size_t ArgSize) {
return shared::
WrapperFunction<rt::SPSSimpleExecutorDylibManagerOpenSignature>::handle(
ArgData, ArgSize,
shared::makeMethodWrapperHandler(
&SimpleExecutorDylibManager::open))
.release();
}
llvm::orc::shared::CWrapperFunctionBuffer
SimpleExecutorDylibManager::resolveWrapper(const char *ArgData,
size_t ArgSize) {
using ResolveResult = ExecutorResolver::ResolveResult;
return shared::WrapperFunction<
rt::SPSSimpleExecutorDylibManagerResolveSignature>::
handle(ArgData, ArgSize,
[](ExecutorAddr Obj, RemoteSymbolLookupSet L) -> ResolveResult {
using TmpResult =
MSVCPExpected<std::vector<std::optional<ExecutorSymbolDef>>>;
std::promise<TmpResult> P;
auto F = P.get_future();
Obj.toPtr<ExecutorResolver *>()->resolveAsync(
std::move(L),
[&](TmpResult R) { P.set_value(std::move(R)); });
return F.get();
})
.release();
}
} // namespace rt_bootstrap
} // end namespace orc
} // end namespace llvm
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