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//===-------------- EPCGenericJITLinkMemoryManagerTest.cpp ----------------===//
//
// 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 "OrcTestCommon.h"
#include "llvm/ExecutionEngine/Orc/EPCGenericJITLinkMemoryManager.h"
#include "llvm/ADT/DenseMap.h"
#include "llvm/ExecutionEngine/Orc/Shared/OrcRTBridge.h"
#include "llvm/ExecutionEngine/Orc/Shared/TargetProcessControlTypes.h"
#include "llvm/Support/FormatVariadic.h"
#include "llvm/Support/Memory.h"
#include "llvm/Testing/Support/Error.h"
#include <limits>
#include <vector>
using namespace llvm;
using namespace llvm::orc;
using namespace llvm::orc::shared;
namespace {
class SimpleAllocator {
public:
Expected<ExecutorAddr> reserve(uint64_t Size) {
std::error_code EC;
auto MB = sys::Memory::allocateMappedMemory(
Size, 0, sys::Memory::MF_READ | sys::Memory::MF_WRITE, EC);
if (EC)
return errorCodeToError(EC);
Blocks[MB.base()] = sys::OwningMemoryBlock(std::move(MB));
return ExecutorAddr::fromPtr(MB.base());
}
Error finalize(tpctypes::FinalizeRequest FR) {
for (auto &Seg : FR.Segments) {
char *Mem = Seg.Addr.toPtr<char *>();
memcpy(Mem, Seg.Content.data(), Seg.Content.size());
memset(Mem + Seg.Content.size(), 0, Seg.Size - Seg.Content.size());
assert(Seg.Size <= std::numeric_limits<size_t>::max());
if (auto EC = sys::Memory::protectMappedMemory(
{Mem, static_cast<size_t>(Seg.Size)},
tpctypes::fromWireProtectionFlags(Seg.Prot)))
return errorCodeToError(EC);
if (Seg.Prot & tpctypes::WPF_Exec)
sys::Memory::InvalidateInstructionCache(Mem, Seg.Size);
}
return Error::success();
}
Error deallocate(std::vector<ExecutorAddr> &Bases) {
Error Err = Error::success();
for (auto &Base : Bases) {
auto I = Blocks.find(Base.toPtr<void *>());
if (I == Blocks.end()) {
Err = joinErrors(
std::move(Err),
make_error<StringError>("No allocation for " +
formatv("{0:x}", Base.getValue()),
inconvertibleErrorCode()));
continue;
}
auto MB = std::move(I->second);
Blocks.erase(I);
if (auto EC = MB.release())
Err = joinErrors(std::move(Err), errorCodeToError(EC));
}
return Err;
}
private:
DenseMap<void *, sys::OwningMemoryBlock> Blocks;
};
llvm::orc::shared::CWrapperFunctionResult testReserve(const char *ArgData,
size_t ArgSize) {
return WrapperFunction<rt::SPSSimpleExecutorMemoryManagerReserveSignature>::
handle(ArgData, ArgSize,
makeMethodWrapperHandler(&SimpleAllocator::reserve))
.release();
}
llvm::orc::shared::CWrapperFunctionResult testFinalize(const char *ArgData,
size_t ArgSize) {
return WrapperFunction<rt::SPSSimpleExecutorMemoryManagerFinalizeSignature>::
handle(ArgData, ArgSize,
makeMethodWrapperHandler(&SimpleAllocator::finalize))
.release();
}
llvm::orc::shared::CWrapperFunctionResult testDeallocate(const char *ArgData,
size_t ArgSize) {
return WrapperFunction<
rt::SPSSimpleExecutorMemoryManagerDeallocateSignature>::
handle(ArgData, ArgSize,
makeMethodWrapperHandler(&SimpleAllocator::deallocate))
.release();
}
TEST(EPCGenericJITLinkMemoryManagerTest, AllocFinalizeFree) {
auto SelfEPC = cantFail(SelfExecutorProcessControl::Create());
SimpleAllocator SA;
EPCGenericJITLinkMemoryManager::SymbolAddrs SAs;
SAs.Allocator = ExecutorAddr::fromPtr(&SA);
SAs.Reserve = ExecutorAddr::fromPtr(&testReserve);
SAs.Finalize = ExecutorAddr::fromPtr(&testFinalize);
SAs.Deallocate = ExecutorAddr::fromPtr(&testDeallocate);
auto MemMgr = std::make_unique<EPCGenericJITLinkMemoryManager>(*SelfEPC, SAs);
StringRef Hello = "hello";
auto SSA = jitlink::SimpleSegmentAlloc::Create(
*MemMgr, nullptr, {{jitlink::MemProt::Read, {Hello.size(), Align(1)}}});
EXPECT_THAT_EXPECTED(SSA, Succeeded());
auto SegInfo = SSA->getSegInfo(jitlink::MemProt::Read);
memcpy(SegInfo.WorkingMem.data(), Hello.data(), Hello.size());
auto FA = SSA->finalize();
EXPECT_THAT_EXPECTED(FA, Succeeded());
ExecutorAddr TargetAddr(SegInfo.Addr);
const char *TargetMem = TargetAddr.toPtr<const char *>();
EXPECT_NE(TargetMem, SegInfo.WorkingMem.data());
StringRef TargetHello(TargetMem, Hello.size());
EXPECT_EQ(Hello, TargetHello);
auto Err2 = MemMgr->deallocate(std::move(*FA));
EXPECT_THAT_ERROR(std::move(Err2), Succeeded());
cantFail(SelfEPC->disconnect());
}
} // namespace
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