clang: lib/Interpreter/Wasm.cpp Source File (original) (raw)
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16#include <llvm/IR/LegacyPassManager.h>
17#include <llvm/IR/Module.h>
18#include <llvm/MC/TargetRegistry.h>
19#include <llvm/Target/TargetMachine.h>
20
22
23#include
24
33};
34
36 llvm::raw_ostream &, bool, bool);
37
41};
42
46};
47
50
51namespace wasm {
53 llvm::raw_ostream &stderrOS, bool exitEarly, bool disableOutput);
54}
55}
56
57#include <dlfcn.h>
58
60
62 llvm::orc::ThreadSafeContext &TSC)
64
66 std::string ErrorString;
67
68 const llvm::Target *Target = llvm::TargetRegistry::lookupTarget(
69 PTU.TheModule->getTargetTriple(), ErrorString);
71 return llvm::make_errorllvm::StringError("Failed to create Wasm Target: ",
72 llvm::inconvertibleErrorCode());
73 }
74
75 llvm::TargetOptions TO = llvm::TargetOptions();
76 llvm::TargetMachine *TargetMachine = Target->createTargetMachine(
77 PTU.TheModule->getTargetTriple(), "", "", TO, llvm::Reloc::Model::PIC_);
78 PTU.TheModule->setDataLayout(TargetMachine->createDataLayout());
79 std::string ObjectFileName = PTU.TheModule->getName().str() + ".o";
80 std::string BinaryFileName = PTU.TheModule->getName().str() + ".wasm";
81
82 std::error_code Error;
83 llvm::raw_fd_ostream ObjectFileOutput(llvm::StringRef(ObjectFileName), Error);
84
85 llvm::legacy::PassManager PM;
86 if (TargetMachine->addPassesToEmitFile(PM, ObjectFileOutput, nullptr,
87 llvm::CodeGenFileType::ObjectFile)) {
88 return llvm::make_errorllvm::StringError(
89 "Wasm backend cannot produce object.", llvm::inconvertibleErrorCode());
90 }
91
93
94 return llvm::make_errorllvm::StringError("Failed to emit Wasm object.",
95 llvm::inconvertibleErrorCode());
96 }
97
98 ObjectFileOutput.close();
99
100 std::vector<const char *> LinkerArgs = {"wasm-ld",
101 "-shared",
102 "--import-memory",
103 "--experimental-pic",
104 "--stack-first",
105 "--allow-undefined",
106 ObjectFileName.c_str(),
107 "-o",
108 BinaryFileName.c_str()};
109
111 std::vectorlld::DriverDef WasmDriverArgs;
112 WasmDriverArgs.push_back(WasmDriver);
114 lld::lldMain(LinkerArgs, llvm::outs(), llvm::errs(), WasmDriverArgs);
115
117 return llvm::make_errorllvm::StringError(
118 "Failed to link incremental module", llvm::inconvertibleErrorCode());
119
120 void *LoadedLibModule =
121 dlopen(BinaryFileName.c_str(), RTLD_NOW | RTLD_GLOBAL);
122 if (LoadedLibModule == nullptr) {
123 llvm::errs() << dlerror() << '\n';
124 return llvm::make_errorllvm::StringError(
125 "Failed to load incremental module", llvm::inconvertibleErrorCode());
126 }
127
128 return llvm::Error::success();
129}
130
132 return llvm::make_errorllvm::StringError("Not implemented yet",
133 llvm::inconvertibleErrorCode());
134}
135
137
138 return llvm::Error::success();
139}
140
142
143
144 return llvm::Error::success();
145}
146
148
149}
llvm::MachO::Target Target
llvm::Error addModule(PartialTranslationUnit &PTU) override
llvm::Error runCtors() const override
~WasmIncrementalExecutor() override
llvm::Error removeModule(PartialTranslationUnit &PTU) override
llvm::Error cleanUp() override
WasmIncrementalExecutor(llvm::orc::ThreadSafeContext &TSC)
The JSON file list parser is used to communicate input to InstallAPI.
@ Result
The result type of a method or function.
bool link(llvm::ArrayRef< const char * > args, llvm::raw_ostream &stdoutOS, llvm::raw_ostream &stderrOS, bool exitEarly, bool disableOutput)
Result lldMain(llvm::ArrayRef< const char * > args, llvm::raw_ostream &stdoutOS, llvm::raw_ostream &stderrOS, llvm::ArrayRef< DriverDef > drivers)
bool(*)(llvm::ArrayRef< const char * >, llvm::raw_ostream &, llvm::raw_ostream &, bool, bool) Driver
The class keeps track of various objects created as part of processing incremental inputs.
std::unique_ptr< llvm::Module > TheModule
The llvm IR produced for the input.