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Clean up ExecutionEngine

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This commit is contained in:
Paweł Bylica 2014-12-30 19:11:09 +01:00
parent 9d9e73ac91
commit fe90c6f107
2 changed files with 28 additions and 41 deletions
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66
libevmjit/ExecutionEngine.cpp
View file

@ -46,6 +46,30 @@ ReturnCode ExecutionEngine::run(bytes const& _code, RuntimeData* _data, Env* _en
return run(std::move(module), _data, _env, _code); return run(std::move(module), _data, _env, _code);
} }
namespace
{
ReturnCode runEntryFunc(ExecBundle const& _exec, Runtime* _runtime)
{
// That function uses long jumps to handle "execeptions".
// Do not create any non-POD objects here
typedef ReturnCode(*EntryFuncPtr)(Runtime*);
auto entryFuncPtr = (EntryFuncPtr)_exec.engine->getFunctionAddress(_exec.mainFuncName);
//std::cerr << _exec.mainFuncName << " F: " << entryFuncPtr << "\n";
ReturnCode returnCode{};
//std::cerr << _exec.mainFuncName << " +S: " << &returnCode << "\n";
auto sj = setjmp(_runtime->getJmpBuf());
if (sj == 0)
returnCode = entryFuncPtr(_runtime);
else
returnCode = static_cast<ReturnCode>(sj);
//std::cerr << _exec.mainFuncName << " -S: " << &returnCode << "\n";
return returnCode;
}
}
ReturnCode ExecutionEngine::run(std::unique_ptr<llvm::Module> _module, RuntimeData* _data, Env* _env, bytes const& _code) ReturnCode ExecutionEngine::run(std::unique_ptr<llvm::Module> _module, RuntimeData* _data, Env* _env, bytes const& _code)
{ {
// TODO: Use it in evmcc // TODO: Use it in evmcc
@ -121,7 +145,10 @@ ReturnCode ExecutionEngine::run(std::unique_ptr<llvm::Module> _module, RuntimeDa
std::string key{reinterpret_cast<char const*>(_code.data()), _code.size()}; std::string key{reinterpret_cast<char const*>(_code.data()), _code.size()};
//auto& cachedExec = Cache::registerExec(key, std::move(exec)); //auto& cachedExec = Cache::registerExec(key, std::move(exec));
auto returnCode = run(exec, _data, _env); Runtime runtime(_data, _env);
auto returnCode = runEntryFunc(exec, &runtime);
if (returnCode == ReturnCode::Return)
this->returnData = runtime.getReturnData();
auto executionEndTime = std::chrono::high_resolution_clock::now(); auto executionEndTime = std::chrono::high_resolution_clock::now();
clog(JIT) << " + " << std::chrono::duration_cast<std::chrono::milliseconds>(executionEndTime - executionStartTime).count() << " ms "; clog(JIT) << " + " << std::chrono::duration_cast<std::chrono::milliseconds>(executionEndTime - executionStartTime).count() << " ms ";
@ -132,43 +159,6 @@ ReturnCode ExecutionEngine::run(std::unique_ptr<llvm::Module> _module, RuntimeDa
return returnCode; return returnCode;
} }
namespace
{
ReturnCode runEntryFunc(ExecBundle const& _exec, Runtime* _runtime)
{
// That function uses long jumps to handle "execeptions".
// Do not create any non-POD objects here
// TODO:
// Getting pointer to function seems to be cachable,
// but it looks like getPointerToFunction() method does something special
// to allow function to be executed.
// That might be related to memory manager. Can we share one?
typedef ReturnCode(*EntryFuncPtr)(Runtime*);
auto entryFuncPtr = (EntryFuncPtr)_exec.engine->getFunctionAddress(_exec.mainFuncName);
//std::cerr << _exec.mainFuncName << " F: " << entryFuncPtr << "\n";
ReturnCode returnCode{};
//std::cerr << _exec.mainFuncName << " +S: " << &returnCode << "\n";
auto sj = setjmp(_runtime->getJmpBuf());
if (sj == 0)
returnCode = entryFuncPtr(_runtime);
else
returnCode = static_cast<ReturnCode>(sj);
//std::cerr << _exec.mainFuncName << " -S: " << &returnCode << "\n";
return returnCode;
}
}
ReturnCode ExecutionEngine::run(ExecBundle const& _exec, RuntimeData* _data, Env* _env)
{
Runtime runtime(_data, _env);
auto returnCode = runEntryFunc(_exec, &runtime);
if (returnCode == ReturnCode::Return)
this->returnData = runtime.getReturnData();
return returnCode;
}
} }
} }

3
libevmjit/ExecutionEngine.h
View file

@ -26,9 +26,6 @@ public:
ReturnCode run(std::unique_ptr<llvm::Module> module, RuntimeData* _data, Env* _env, bytes const& _code); ReturnCode run(std::unique_ptr<llvm::Module> module, RuntimeData* _data, Env* _env, bytes const& _code);
bytes returnData; bytes returnData;
private:
ReturnCode run(ExecBundle const& _exec, RuntimeData* _data, Env* _env);
}; };
} }