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.
30 lines
1.5 KiB
30 lines
1.5 KiB
#include <vm_lifters.hpp>
|
|
|
|
namespace vm
|
|
{
|
|
lifters_t::lifter_callback_t lifters_t::readcr3 =
|
|
[ & ]( vm::devirt_t *rtn, const vm::instrs::code_block_t &vm_code_block, const vm::instrs::virt_instr_t &vinstr,
|
|
llvm::IRBuilder<> *ir_builder ) {
|
|
llvm::Function *readcr3_intrin = nullptr;
|
|
if ( !( readcr3_intrin = rtn->llvm_module->getFunction( "readcr3" ) ) )
|
|
{
|
|
readcr3_intrin = llvm::Function::Create( llvm::FunctionType::get( ir_builder->getInt64Ty(), false ),
|
|
llvm::GlobalValue::LinkageTypes::ExternalLinkage, "readcr3",
|
|
*rtn->llvm_module );
|
|
|
|
auto entry_block = llvm::BasicBlock::Create( ir_builder->getContext(), "", readcr3_intrin );
|
|
auto ib = ir_builder->GetInsertBlock();
|
|
ir_builder->SetInsertPoint( entry_block );
|
|
|
|
std::string asm_str( "mov rax, cr3; ret" );
|
|
auto intrin = llvm::InlineAsm::get( llvm::FunctionType::get( ir_builder->getVoidTy(), false ), asm_str,
|
|
"", false, false, llvm::InlineAsm::AD_Intel );
|
|
|
|
ir_builder->CreateCall( intrin );
|
|
ir_builder->CreateRet( llvm::ConstantInt::get( *rtn->llvm_ctx, llvm::APInt( 64, 0 ) ) );
|
|
ir_builder->SetInsertPoint( ib );
|
|
}
|
|
auto t1 = ir_builder->CreateCall( readcr3_intrin );
|
|
rtn->push( 8, t1 );
|
|
};
|
|
} |