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Access stack structure through runtime structure [#81470252]

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This commit is contained in:
Paweł Bylica 2014-10-27 12:17:04 +01:00
parent 693c4b3dfa
commit 3670e328ba
5 changed files with 30 additions and 26 deletions
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2
libevmjit/Compiler.cpp
View file

@ -181,7 +181,7 @@ std::unique_ptr<llvm::Module> Compiler::compile(bytesConstRef bytecode)
GasMeter gasMeter(m_builder, runtimeManager);
Memory memory(m_builder, gasMeter, runtimeManager);
Ext ext(m_builder);
Stack stack(m_builder);
Stack stack(m_builder, runtimeManager);
m_builder.CreateBr(basicBlocks.begin()->second);

4
libevmjit/Runtime.cpp
View file

@ -44,10 +44,6 @@ Runtime::~Runtime()
g_runtime = nullptr;
}
StackImpl& Runtime::getStack()
{
return g_runtime->m_stack;
}
ExtVMFace& Runtime::getExt()
{

2
libevmjit/Runtime.h
View file

@ -43,7 +43,7 @@ public:
RuntimeData* getDataPtr() { return &m_data; }
static StackImpl& getStack();
StackImpl& getStack() { return m_stack; }
MemoryImpl& getMemory() { return m_memory; }
static ExtVMFace& getExt();
u256 getGas();

44
libevmjit/Stack.cpp
View file

@ -14,8 +14,9 @@ namespace eth
namespace jit
{
Stack::Stack(llvm::IRBuilder<>& _builder)
: CompilerHelper(_builder)
Stack::Stack(llvm::IRBuilder<>& _builder, RuntimeManager& _runtimeManager)
: CompilerHelper(_builder),
m_runtimeManager(_runtimeManager)
{
m_arg = m_builder.CreateAlloca(Type::i256, nullptr, "stack.arg");
@ -23,11 +24,16 @@ Stack::Stack(llvm::IRBuilder<>& _builder)
using Linkage = GlobalValue::LinkageTypes;
auto module = getModule();
m_push = Function::Create(FunctionType::get(m_builder.getVoidTy(), Type::WordPtr, false), Linkage::ExternalLinkage, "stack_push", module);
m_pop = Function::Create(FunctionType::get(m_builder.getVoidTy(), Type::Size, false), Linkage::ExternalLinkage, "stack_pop", module);
llvm::Type* getSetArgTypes[] = {Type::Size, Type::WordPtr};
m_get = Function::Create(FunctionType::get(m_builder.getVoidTy(), ArrayRef<llvm::Type*>(getSetArgTypes), false), Linkage::ExternalLinkage, "stack_get", module);
m_set = Function::Create(FunctionType::get(m_builder.getVoidTy(), ArrayRef<llvm::Type*>(getSetArgTypes), false), Linkage::ExternalLinkage, "stack_set", module);
llvm::Type* pushArgTypes[] = {Type::RuntimePtr, Type::WordPtr};
m_push = Function::Create(FunctionType::get(Type::Void, pushArgTypes, false), Linkage::ExternalLinkage, "stack_push", module);
llvm::Type* popArgTypes[] = {Type::RuntimePtr, Type::Size};
m_pop = Function::Create(FunctionType::get(Type::Void, popArgTypes, false), Linkage::ExternalLinkage, "stack_pop", module);
llvm::Type* getSetArgTypes[] = {Type::RuntimePtr, Type::Size, Type::WordPtr};
m_get = Function::Create(FunctionType::get(Type::Void, getSetArgTypes, false), Linkage::ExternalLinkage, "stack_get", module);
m_set = Function::Create(FunctionType::get(Type::Void, getSetArgTypes, false), Linkage::ExternalLinkage, "stack_set", module);
}
Stack::~Stack()
@ -35,25 +41,25 @@ Stack::~Stack()
llvm::Value* Stack::get(size_t _index)
{
m_builder.CreateCall2(m_get, llvm::ConstantInt::get(Type::Size, _index, false), m_arg);
m_builder.CreateCall3(m_get, m_runtimeManager.getRuntimePtr(), llvm::ConstantInt::get(Type::Size, _index, false), m_arg);
return m_builder.CreateLoad(m_arg);
}
void Stack::set(size_t _index, llvm::Value* _value)
{
m_builder.CreateStore(_value, m_arg);
m_builder.CreateCall2(m_set, llvm::ConstantInt::get(Type::Size, _index, false), m_arg);
m_builder.CreateCall3(m_set, m_runtimeManager.getRuntimePtr(), llvm::ConstantInt::get(Type::Size, _index, false), m_arg);
}
void Stack::pop(size_t _count)
{
m_builder.CreateCall(m_pop, llvm::ConstantInt::get(Type::Size, _count, false));
m_builder.CreateCall2(m_pop, m_runtimeManager.getRuntimePtr(), llvm::ConstantInt::get(Type::Size, _count, false));
}
void Stack::push(llvm::Value* _value)
{
m_builder.CreateStore(_value, m_arg);
m_builder.CreateCall(m_push, m_arg);
m_builder.CreateCall2(m_push, m_runtimeManager.getRuntimePtr(), m_arg);
}
@ -70,27 +76,27 @@ using namespace dev::eth::jit;
extern std::jmp_buf* rt_jmpBuf;
EXPORT void stack_pop(uint64_t _count)
EXPORT void stack_pop(Runtime* _rt, uint64_t _count)
{
auto& stack = Runtime::getStack();
auto& stack = _rt->getStack();
if (stack.size() < _count)
longjmp(*rt_jmpBuf, static_cast<uint64_t>(ReturnCode::StackTooSmall));
stack.erase(stack.end() - _count, stack.end());
}
EXPORT void stack_push(i256* _word)
EXPORT void stack_push(Runtime* _rt, i256* _word)
{
auto& stack = Runtime::getStack();
auto& stack = _rt->getStack();
stack.push_back(*_word);
if (stack.size() > Stack::maxStackSize)
Stack::maxStackSize = stack.size();
}
EXPORT void stack_get(uint64_t _index, i256* _ret)
EXPORT void stack_get(Runtime* _rt, uint64_t _index, i256* _ret)
{
auto& stack = Runtime::getStack();
auto& stack = _rt->getStack();
// TODO: encode _index and stack size in the return code
if (stack.size() <= _index)
longjmp(*rt_jmpBuf, static_cast<uint64_t>(ReturnCode::StackTooSmall));
@ -98,9 +104,9 @@ EXPORT void stack_get(uint64_t _index, i256* _ret)
*_ret = *(stack.rbegin() + _index);
}
EXPORT void stack_set(uint64_t _index, i256* _word)
EXPORT void stack_set(Runtime* _rt, uint64_t _index, i256* _word)
{
auto& stack = Runtime::getStack();
auto& stack = _rt->getStack();
// TODO: encode _index and stack size in the return code
if (stack.size() <= _index)
longjmp(*rt_jmpBuf, static_cast<uint64_t>(ReturnCode::StackTooSmall));

4
libevmjit/Stack.h
View file

@ -10,12 +10,13 @@ namespace eth
{
namespace jit
{
class RuntimeManager;
class Stack : public CompilerHelper
{
public:
Stack(llvm::IRBuilder<>& builder);
Stack(llvm::IRBuilder<>& builder, RuntimeManager& runtimeManager);
virtual ~Stack();
llvm::Value* get(size_t _index);
@ -26,6 +27,7 @@ public:
static size_t maxStackSize;
private:
RuntimeManager& m_runtimeManager;
llvm::Function* m_push;
llvm::Function* m_pop;