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
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
|
//===---- ExecutorProcessControl.cpp -- Executor process control APIs -----===//
//
// 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 "llvm/ExecutionEngine/Orc/ExecutorProcessControl.h"
#include "llvm/ExecutionEngine/Orc/Core.h"
#include "llvm/ExecutionEngine/Orc/Shared/OrcRTBridge.h"
#include "llvm/ExecutionEngine/Orc/TargetProcess/RegisterEHFrames.h"
#include "llvm/ExecutionEngine/Orc/TargetProcess/TargetExecutionUtils.h"
#include "llvm/Support/FormatVariadic.h"
#include "llvm/Support/Process.h"
#include "llvm/TargetParser/Host.h"
#define DEBUG_TYPE "orc"
namespace llvm {
namespace orc {
ExecutorProcessControl::MemoryAccess::~MemoryAccess() = default;
ExecutorProcessControl::~ExecutorProcessControl() = default;
SelfExecutorProcessControl::SelfExecutorProcessControl(
std::shared_ptr<SymbolStringPool> SSP, std::unique_ptr<TaskDispatcher> D,
Triple TargetTriple, unsigned PageSize,
std::unique_ptr<jitlink::JITLinkMemoryManager> MemMgr)
: ExecutorProcessControl(std::move(SSP), std::move(D)),
InProcessMemoryAccess(TargetTriple.isArch64Bit()) {
OwnedMemMgr = std::move(MemMgr);
if (!OwnedMemMgr)
OwnedMemMgr = std::make_unique<jitlink::InProcessMemoryManager>(
sys::Process::getPageSizeEstimate());
this->TargetTriple = std::move(TargetTriple);
this->PageSize = PageSize;
this->MemMgr = OwnedMemMgr.get();
this->MemAccess = this;
this->JDI = {ExecutorAddr::fromPtr(jitDispatchViaWrapperFunctionManager),
ExecutorAddr::fromPtr(this)};
if (this->TargetTriple.isOSBinFormatMachO())
GlobalManglingPrefix = '_';
this->BootstrapSymbols[rt::RegisterEHFrameSectionWrapperName] =
ExecutorAddr::fromPtr(&llvm_orc_registerEHFrameSectionWrapper);
this->BootstrapSymbols[rt::DeregisterEHFrameSectionWrapperName] =
ExecutorAddr::fromPtr(&llvm_orc_deregisterEHFrameSectionWrapper);
}
Expected<std::unique_ptr<SelfExecutorProcessControl>>
SelfExecutorProcessControl::Create(
std::shared_ptr<SymbolStringPool> SSP,
std::unique_ptr<TaskDispatcher> D,
std::unique_ptr<jitlink::JITLinkMemoryManager> MemMgr) {
if (!SSP)
SSP = std::make_shared<SymbolStringPool>();
if (!D) {
#if LLVM_ENABLE_THREADS
D = std::make_unique<DynamicThreadPoolTaskDispatcher>(std::nullopt);
#else
D = std::make_unique<InPlaceTaskDispatcher>();
#endif
}
auto PageSize = sys::Process::getPageSize();
if (!PageSize)
return PageSize.takeError();
Triple TT(sys::getProcessTriple());
return std::make_unique<SelfExecutorProcessControl>(
std::move(SSP), std::move(D), std::move(TT), *PageSize,
std::move(MemMgr));
}
Expected<tpctypes::DylibHandle>
SelfExecutorProcessControl::loadDylib(const char *DylibPath) {
std::string ErrMsg;
auto Dylib = sys::DynamicLibrary::getPermanentLibrary(DylibPath, &ErrMsg);
if (!Dylib.isValid())
return make_error<StringError>(std::move(ErrMsg), inconvertibleErrorCode());
return ExecutorAddr::fromPtr(Dylib.getOSSpecificHandle());
}
void SelfExecutorProcessControl::lookupSymbolsAsync(
ArrayRef<LookupRequest> Request,
ExecutorProcessControl::SymbolLookupCompleteFn Complete) {
std::vector<tpctypes::LookupResult> R;
for (auto &Elem : Request) {
sys::DynamicLibrary Dylib(Elem.Handle.toPtr<void *>());
R.push_back(std::vector<ExecutorSymbolDef>());
for (auto &KV : Elem.Symbols) {
auto &Sym = KV.first;
std::string Tmp((*Sym).data() + !!GlobalManglingPrefix,
(*Sym).size() - !!GlobalManglingPrefix);
void *Addr = Dylib.getAddressOfSymbol(Tmp.c_str());
if (!Addr && KV.second == SymbolLookupFlags::RequiredSymbol) {
// FIXME: Collect all failing symbols before erroring out.
SymbolNameVector MissingSymbols;
MissingSymbols.push_back(Sym);
return Complete(
make_error<SymbolsNotFound>(SSP, std::move(MissingSymbols)));
}
// FIXME: determine accurate JITSymbolFlags.
R.back().push_back(
{ExecutorAddr::fromPtr(Addr), JITSymbolFlags::Exported});
}
}
Complete(std::move(R));
}
Expected<int32_t>
SelfExecutorProcessControl::runAsMain(ExecutorAddr MainFnAddr,
ArrayRef<std::string> Args) {
using MainTy = int (*)(int, char *[]);
return orc::runAsMain(MainFnAddr.toPtr<MainTy>(), Args);
}
Expected<int32_t>
SelfExecutorProcessControl::runAsVoidFunction(ExecutorAddr VoidFnAddr) {
using VoidTy = int (*)();
return orc::runAsVoidFunction(VoidFnAddr.toPtr<VoidTy>());
}
Expected<int32_t>
SelfExecutorProcessControl::runAsIntFunction(ExecutorAddr IntFnAddr, int Arg) {
using IntTy = int (*)(int);
return orc::runAsIntFunction(IntFnAddr.toPtr<IntTy>(), Arg);
}
void SelfExecutorProcessControl::callWrapperAsync(ExecutorAddr WrapperFnAddr,
IncomingWFRHandler SendResult,
ArrayRef<char> ArgBuffer) {
using WrapperFnTy =
shared::CWrapperFunctionResult (*)(const char *Data, size_t Size);
auto *WrapperFn = WrapperFnAddr.toPtr<WrapperFnTy>();
SendResult(WrapperFn(ArgBuffer.data(), ArgBuffer.size()));
}
Error SelfExecutorProcessControl::disconnect() {
D->shutdown();
return Error::success();
}
void InProcessMemoryAccess::writeUInt8sAsync(ArrayRef<tpctypes::UInt8Write> Ws,
WriteResultFn OnWriteComplete) {
for (auto &W : Ws)
*W.Addr.toPtr<uint8_t *>() = W.Value;
OnWriteComplete(Error::success());
}
void InProcessMemoryAccess::writeUInt16sAsync(
ArrayRef<tpctypes::UInt16Write> Ws, WriteResultFn OnWriteComplete) {
for (auto &W : Ws)
*W.Addr.toPtr<uint16_t *>() = W.Value;
OnWriteComplete(Error::success());
}
void InProcessMemoryAccess::writeUInt32sAsync(
ArrayRef<tpctypes::UInt32Write> Ws, WriteResultFn OnWriteComplete) {
for (auto &W : Ws)
*W.Addr.toPtr<uint32_t *>() = W.Value;
OnWriteComplete(Error::success());
}
void InProcessMemoryAccess::writeUInt64sAsync(
ArrayRef<tpctypes::UInt64Write> Ws, WriteResultFn OnWriteComplete) {
for (auto &W : Ws)
*W.Addr.toPtr<uint64_t *>() = W.Value;
OnWriteComplete(Error::success());
}
void InProcessMemoryAccess::writeBuffersAsync(
ArrayRef<tpctypes::BufferWrite> Ws, WriteResultFn OnWriteComplete) {
for (auto &W : Ws)
memcpy(W.Addr.toPtr<char *>(), W.Buffer.data(), W.Buffer.size());
OnWriteComplete(Error::success());
}
void InProcessMemoryAccess::writePointersAsync(
ArrayRef<tpctypes::PointerWrite> Ws, WriteResultFn OnWriteComplete) {
if (IsArch64Bit) {
for (auto &W : Ws)
*W.Addr.toPtr<uint64_t *>() = W.Value.getValue();
} else {
for (auto &W : Ws)
*W.Addr.toPtr<uint32_t *>() = static_cast<uint32_t>(W.Value.getValue());
}
OnWriteComplete(Error::success());
}
shared::CWrapperFunctionResult
SelfExecutorProcessControl::jitDispatchViaWrapperFunctionManager(
void *Ctx, const void *FnTag, const char *Data, size_t Size) {
LLVM_DEBUG({
dbgs() << "jit-dispatch call with tag " << FnTag << " and " << Size
<< " byte payload.\n";
});
std::promise<shared::WrapperFunctionResult> ResultP;
auto ResultF = ResultP.get_future();
static_cast<SelfExecutorProcessControl *>(Ctx)
->getExecutionSession()
.runJITDispatchHandler(
[ResultP = std::move(ResultP)](
shared::WrapperFunctionResult Result) mutable {
ResultP.set_value(std::move(Result));
},
ExecutorAddr::fromPtr(FnTag), {Data, Size});
return ResultF.get().release();
}
} // end namespace orc
} // end namespace llvm
|
