| 1 | //===----- EPCDebugObjectRegistrar.cpp - EPC-based debug registration -----===// |
|---|---|
| 2 | // |
| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| 4 | // See https://llvm.org/LICENSE.txt for license information. |
| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| 6 | // |
| 7 | //===----------------------------------------------------------------------===// |
| 8 | |
| 9 | #include "llvm/ExecutionEngine/Orc/EPCDebugObjectRegistrar.h" |
| 10 | |
| 11 | #include "llvm/ExecutionEngine/Orc/Core.h" |
| 12 | #include "llvm/ExecutionEngine/Orc/Shared/SimplePackedSerialization.h" |
| 13 | #include "llvm/ExecutionEngine/Orc/TargetProcess/JITLoaderGDB.h" |
| 14 | #include "llvm/Support/BinaryStreamWriter.h" |
| 15 | |
| 16 | namespace llvm { |
| 17 | namespace orc { |
| 18 | |
| 19 | Expected<std::unique_ptr<EPCDebugObjectRegistrar>> createJITLoaderGDBRegistrar( |
| 20 | ExecutionSession &ES, |
| 21 | std::optional<ExecutorAddr> RegistrationFunctionDylib) { |
| 22 | auto &EPC = ES.getExecutorProcessControl(); |
| 23 | |
| 24 | if (!RegistrationFunctionDylib) { |
| 25 | if (auto D = EPC.loadDylib(DylibPath: nullptr)) |
| 26 | RegistrationFunctionDylib = *D; |
| 27 | else |
| 28 | return D.takeError(); |
| 29 | } |
| 30 | |
| 31 | SymbolStringPtr RegisterFn = |
| 32 | EPC.getTargetTriple().isOSBinFormatMachO() |
| 33 | ? EPC.intern(SymName: "_llvm_orc_registerJITLoaderGDBWrapper") |
| 34 | : EPC.intern(SymName: "llvm_orc_registerJITLoaderGDBWrapper"); |
| 35 | |
| 36 | SymbolLookupSet RegistrationSymbols; |
| 37 | RegistrationSymbols.add(Name: RegisterFn); |
| 38 | |
| 39 | auto Result = |
| 40 | EPC.lookupSymbols(Request: {{*RegistrationFunctionDylib, RegistrationSymbols}}); |
| 41 | if (!Result) |
| 42 | return Result.takeError(); |
| 43 | |
| 44 | assert(Result->size() == 1 && "Unexpected number of dylibs in result"); |
| 45 | assert((*Result)[0].size() == 1 && |
| 46 | "Unexpected number of addresses in result"); |
| 47 | |
| 48 | ExecutorAddr RegisterAddr = (*Result)[0][0].getAddress(); |
| 49 | return std::make_unique<EPCDebugObjectRegistrar>(args&: ES, args&: RegisterAddr); |
| 50 | } |
| 51 | |
| 52 | Error EPCDebugObjectRegistrar::registerDebugObject(ExecutorAddrRange TargetMem, |
| 53 | bool AutoRegisterCode) { |
| 54 | return ES.callSPSWrapper<void(shared::SPSExecutorAddrRange, bool)>( |
| 55 | WrapperFnAddr: RegisterFn, WrapperCallArgs&: TargetMem, WrapperCallArgs&: AutoRegisterCode); |
| 56 | } |
| 57 | |
| 58 | } // namespace orc |
| 59 | } // namespace llvm |
| 60 |