drlvm/vm/vmcore/src/lil/lil_code_generator.cpp

/*
 *  Licensed to the Apache Software Foundation (ASF) under one or more
 *  contributor license agreements.  See the NOTICE file distributed with
 *  this work for additional information regarding copyright ownership.
 *  The ASF licenses this file to You under the Apache License, Version 2.0
 *  (the "License"); you may not use this file except in compliance with
 *  the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */
#include "nogc.h"
#include "jvmti_direct.h"
#include "environment.h"
#include "compile.h"

#include "lil.h"
#include "lil_code_generator.h"

#ifdef _IA32_
#include "lil_code_generator_ia32.h"
#elif _EM64T_
#include "lil_code_generator_em64t.h"
#elif _IPF_
#include "lil_code_generator_ipf.h"
#endif


LilCodeGenerator* LilCodeGenerator::get_platform()
{
#ifdef _IA32_
    static LilCodeGeneratorIa32 cg;
#elif _EM64T_
    static LilCodeGeneratorEM64T cg;
#elif _IPF_
    static LilCodeGeneratorIpf cg;
#endif
    return (LilCodeGenerator*)&cg;
}

LilCodeGenerator::LilCodeGenerator()
{
}

NativeCodePtr LilCodeGenerator::compile(LilCodeStub* cs, PoolManager* code_pool)
{
    assert (code_pool);
    size_t stub_size;
    NativeCodePtr stub = compile_main(cs, &stub_size, code_pool);
    lil_cs_set_code_size(cs, stub_size);
    
    compile_add_dynamic_generated_code_chunk("unknown", false, stub, stub_size);

    if(jvmti_should_report_event(JVMTI_EVENT_DYNAMIC_CODE_GENERATED))
    {
        jvmti_send_dynamic_code_generated_event("unknown", stub,
            (jint)stub_size);
    }

    return stub;
}


NativeCodePtr LilCodeGenerator::allocate_memory(size_t size, PoolManager* code_pool)
{
    assert(code_pool);
    NativeCodePtr buf = code_pool->alloc(size, DEFAULT_CODE_ALIGNMENT, CAA_Allocate);

    // Check for 16-byte alignment
    assert((((POINTER_SIZE_INT)buf)&15)==0);
    return buf;
}