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102 lines
1.9 KiB
102 lines
1.9 KiB
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#include "Runtime.h"
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#include <llvm/IR/GlobalVariable.h>
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#include <llvm/IR/Function.h>
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#include <libevm/VM.h>
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#include "Type.h"
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namespace dev
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{
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namespace eth
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{
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namespace jit
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{
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llvm::StructType* RuntimeData::getType()
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{
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static llvm::StructType* type = nullptr;
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if (!type)
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{
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llvm::Type* elems[] =
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{
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Type::i256,
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};
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type = llvm::StructType::create(elems, "RuntimeData");
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}
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return type;
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}
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static Runtime* g_runtime; // FIXME: Remove
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Runtime::Runtime(u256 _gas, ExtVMFace& _ext):
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m_ext(_ext)
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{
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assert(!g_runtime);
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g_runtime = this;
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m_data.gas = eth2llvm(_gas);
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}
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Runtime::~Runtime()
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{
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g_runtime = nullptr;
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}
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ExtVMFace& Runtime::getExt()
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{
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return g_runtime->m_ext;
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}
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u256 Runtime::getGas()
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{
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return llvm2eth(m_data.gas);
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}
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extern "C" {
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EXPORT i256 mem_returnDataOffset; // FIXME: Dis-globalize
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EXPORT i256 mem_returnDataSize;
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}
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bytesConstRef Runtime::getReturnData()
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{
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// TODO: Handle large indexes
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auto offset = static_cast<size_t>(llvm2eth(mem_returnDataOffset));
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auto size = static_cast<size_t>(llvm2eth(mem_returnDataSize));
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return{getMemory().data() + offset, size};
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}
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RuntimeManager::RuntimeManager(llvm::IRBuilder<>& _builder): CompilerHelper(_builder)
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{
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m_dataPtr = new llvm::GlobalVariable(*getModule(), Type::RuntimePtr, false, llvm::GlobalVariable::PrivateLinkage, llvm::UndefValue::get(Type::RuntimePtr), "rt");
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// Export data
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auto mainFunc = getMainFunction();
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llvm::Value* dataPtr = &mainFunc->getArgumentList().back();
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m_builder.CreateStore(dataPtr, m_dataPtr);
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}
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llvm::Value* RuntimeManager::getRuntimePtr()
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{
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// TODO: If in main function - get it from param
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return m_builder.CreateLoad(m_dataPtr);
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}
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llvm::Value* RuntimeManager::getGas()
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{
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auto gasPtr = m_builder.CreateStructGEP(getRuntimePtr(), 0);
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return m_builder.CreateLoad(gasPtr, "gas");
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}
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void RuntimeManager::setGas(llvm::Value* _gas)
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{
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auto gasPtr = m_builder.CreateStructGEP(getRuntimePtr(), 0);
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m_builder.CreateStore(_gas, gasPtr);
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}
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}
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}
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}
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