1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
|
//===-- RemoteJITUtils.h - Utilities for remote-JITing with LLI -*- C++ -*-===//
//
// 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
//
//===----------------------------------------------------------------------===//
//
// Utilities for remote-JITing with LLI.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_TOOLS_LLI_FORWARDINGMEMORYMANAGER_H
#define LLVM_TOOLS_LLI_FORWARDINGMEMORYMANAGER_H
#include "llvm/ExecutionEngine/Orc/EPCGenericDylibManager.h"
#include "llvm/ExecutionEngine/RTDyldMemoryManager.h"
namespace llvm {
// ForwardingMM - Adapter to connect MCJIT to Orc's Remote
// memory manager.
class ForwardingMemoryManager : public llvm::RTDyldMemoryManager {
public:
void setMemMgr(std::unique_ptr<RuntimeDyld::MemoryManager> MemMgr) {
this->MemMgr = std::move(MemMgr);
}
void setResolver(std::shared_ptr<LegacyJITSymbolResolver> Resolver) {
this->Resolver = std::move(Resolver);
}
uint8_t *allocateCodeSection(uintptr_t Size, unsigned Alignment,
unsigned SectionID,
StringRef SectionName) override {
return MemMgr->allocateCodeSection(Size, Alignment, SectionID, SectionName);
}
uint8_t *allocateDataSection(uintptr_t Size, unsigned Alignment,
unsigned SectionID, StringRef SectionName,
bool IsReadOnly) override {
return MemMgr->allocateDataSection(Size, Alignment, SectionID, SectionName,
IsReadOnly);
}
void reserveAllocationSpace(uintptr_t CodeSize, uint32_t CodeAlign,
uintptr_t RODataSize, uint32_t RODataAlign,
uintptr_t RWDataSize,
uint32_t RWDataAlign) override {
MemMgr->reserveAllocationSpace(CodeSize, CodeAlign, RODataSize, RODataAlign,
RWDataSize, RWDataAlign);
}
bool needsToReserveAllocationSpace() override {
return MemMgr->needsToReserveAllocationSpace();
}
void registerEHFrames(uint8_t *Addr, uint64_t LoadAddr,
size_t Size) override {
MemMgr->registerEHFrames(Addr, LoadAddr, Size);
}
void deregisterEHFrames() override { MemMgr->deregisterEHFrames(); }
bool finalizeMemory(std::string *ErrMsg = nullptr) override {
return MemMgr->finalizeMemory(ErrMsg);
}
void notifyObjectLoaded(RuntimeDyld &RTDyld,
const object::ObjectFile &Obj) override {
MemMgr->notifyObjectLoaded(RTDyld, Obj);
}
// Don't hide the sibling notifyObjectLoaded from RTDyldMemoryManager.
using RTDyldMemoryManager::notifyObjectLoaded;
JITSymbol findSymbol(const std::string &Name) override {
return Resolver->findSymbol(Name);
}
JITSymbol findSymbolInLogicalDylib(const std::string &Name) override {
return Resolver->findSymbolInLogicalDylib(Name);
}
private:
std::unique_ptr<RuntimeDyld::MemoryManager> MemMgr;
std::shared_ptr<LegacyJITSymbolResolver> Resolver;
};
class RemoteResolver : public LegacyJITSymbolResolver {
public:
static Expected<std::unique_ptr<RemoteResolver>>
Create(orc::ExecutorProcessControl &EPC) {
auto DylibMgr =
orc::EPCGenericDylibManager::CreateWithDefaultBootstrapSymbols(EPC);
if (!DylibMgr)
return DylibMgr.takeError();
auto H = DylibMgr->open("", 0);
if (!H)
return H.takeError();
return std::unique_ptr<RemoteResolver>(
new RemoteResolver(std::move(*DylibMgr), std::move(*H)));
}
JITSymbol findSymbol(const std::string &Name) override {
orc::RemoteSymbolLookupSet R;
R.push_back({std::move(Name), false});
if (auto Addrs = DylibMgr.lookup(H, R)) {
if (Addrs->size() != 1)
return make_error<StringError>("Unexpected remote lookup result",
inconvertibleErrorCode());
return JITSymbol(Addrs->front().getValue(), JITSymbolFlags::Exported);
} else
return Addrs.takeError();
}
JITSymbol findSymbolInLogicalDylib(const std::string &Name) override {
return nullptr;
}
public:
RemoteResolver(orc::EPCGenericDylibManager DylibMgr,
orc::tpctypes::DylibHandle H)
: DylibMgr(std::move(DylibMgr)), H(std::move(H)) {}
orc::EPCGenericDylibManager DylibMgr;
orc::tpctypes::DylibHandle H;
};
} // namespace llvm
#endif // LLVM_TOOLS_LLI_FORWARDINGMEMORYMANAGER_H
|
