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
16namespace llvm {
17namespace orc {
18
19Expected<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
52Error 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