forked from OSchip/llvm-project
53 lines
1.9 KiB
C++
53 lines
1.9 KiB
C++
//===----- EPCDebugObjectRegistrar.cpp - EPC-based debug registration -----===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/ExecutionEngine/Orc/EPCDebugObjectRegistrar.h"
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#include "llvm/ExecutionEngine/Orc/Core.h"
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#include "llvm/ExecutionEngine/Orc/Shared/SimplePackedSerialization.h"
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#include "llvm/ExecutionEngine/Orc/TargetProcess/JITLoaderGDB.h"
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#include "llvm/Support/BinaryStreamWriter.h"
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namespace llvm {
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namespace orc {
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Expected<std::unique_ptr<EPCDebugObjectRegistrar>>
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createJITLoaderGDBRegistrar(ExecutionSession &ES) {
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auto &EPC = ES.getExecutorProcessControl();
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auto ProcessHandle = EPC.loadDylib(nullptr);
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if (!ProcessHandle)
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return ProcessHandle.takeError();
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SymbolStringPtr RegisterFn =
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EPC.getTargetTriple().isOSBinFormatMachO()
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? EPC.intern("_llvm_orc_registerJITLoaderGDBWrapper")
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: EPC.intern("llvm_orc_registerJITLoaderGDBWrapper");
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SymbolLookupSet RegistrationSymbols;
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RegistrationSymbols.add(RegisterFn);
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auto Result = EPC.lookupSymbols({{*ProcessHandle, RegistrationSymbols}});
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if (!Result)
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return Result.takeError();
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assert(Result->size() == 1 && "Unexpected number of dylibs in result");
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assert((*Result)[0].size() == 1 &&
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"Unexpected number of addresses in result");
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return std::make_unique<EPCDebugObjectRegistrar>(ES, (*Result)[0][0]);
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}
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Error EPCDebugObjectRegistrar::registerDebugObject(sys::MemoryBlock TargetMem) {
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return ES.callSPSWrapper<void(SPSExecutorAddress, uint64_t)>(
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RegisterFn, ExecutorAddress::fromPtr(TargetMem.base()),
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static_cast<uint64_t>(TargetMem.allocatedSize()));
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}
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} // namespace orc
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} // namespace llvm
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