You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
116 lines
3.1 KiB
116 lines
3.1 KiB
#include "Stack.h"
|
|
#include "Runtime.h"
|
|
#include "Type.h"
|
|
|
|
#include <csetjmp>
|
|
|
|
#include <llvm/IR/Function.h>
|
|
#include <llvm/IR/TypeBuilder.h>
|
|
|
|
namespace dev
|
|
{
|
|
namespace eth
|
|
{
|
|
namespace jit
|
|
{
|
|
|
|
Stack::Stack(llvm::IRBuilder<>& _builder, RuntimeManager& _runtimeManager)
|
|
: CompilerHelper(_builder),
|
|
m_runtimeManager(_runtimeManager)
|
|
{
|
|
m_arg = m_builder.CreateAlloca(Type::i256, nullptr, "stack.arg");
|
|
|
|
using namespace llvm;
|
|
using Linkage = GlobalValue::LinkageTypes;
|
|
|
|
auto module = getModule();
|
|
|
|
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()
|
|
{}
|
|
|
|
llvm::Value* Stack::get(size_t _index)
|
|
{
|
|
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.CreateCall3(m_set, m_runtimeManager.getRuntimePtr(), llvm::ConstantInt::get(Type::Size, _index, false), m_arg);
|
|
}
|
|
|
|
void Stack::pop(size_t _count)
|
|
{
|
|
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.CreateCall2(m_push, m_runtimeManager.getRuntimePtr(), m_arg);
|
|
}
|
|
|
|
|
|
size_t Stack::maxStackSize = 0;
|
|
|
|
}
|
|
}
|
|
}
|
|
|
|
extern "C"
|
|
{
|
|
|
|
using namespace dev::eth::jit;
|
|
|
|
EXPORT void stack_pop(Runtime* _rt, uint64_t _count)
|
|
{
|
|
auto& stack = _rt->getStack();
|
|
if (stack.size() < _count)
|
|
longjmp(_rt->getJmpBuf(), static_cast<uint64_t>(ReturnCode::StackTooSmall));
|
|
|
|
stack.erase(stack.end() - _count, stack.end());
|
|
}
|
|
|
|
EXPORT void stack_push(Runtime* _rt, i256* _word)
|
|
{
|
|
auto& stack = _rt->getStack();
|
|
stack.push_back(*_word);
|
|
|
|
if (stack.size() > Stack::maxStackSize)
|
|
Stack::maxStackSize = stack.size();
|
|
}
|
|
|
|
EXPORT void stack_get(Runtime* _rt, uint64_t _index, i256* _ret)
|
|
{
|
|
auto& stack = _rt->getStack();
|
|
// TODO: encode _index and stack size in the return code
|
|
if (stack.size() <= _index)
|
|
longjmp(_rt->getJmpBuf(), static_cast<uint64_t>(ReturnCode::StackTooSmall));
|
|
|
|
*_ret = *(stack.rbegin() + _index);
|
|
}
|
|
|
|
EXPORT void stack_set(Runtime* _rt, uint64_t _index, i256* _word)
|
|
{
|
|
auto& stack = _rt->getStack();
|
|
// TODO: encode _index and stack size in the return code
|
|
if (stack.size() <= _index)
|
|
longjmp(_rt->getJmpBuf(), static_cast<uint64_t>(ReturnCode::StackTooSmall));
|
|
|
|
*(stack.rbegin() + _index) = *_word;
|
|
}
|
|
|
|
} // extern "C"
|
|
|
|
|