nativeInstruction.cpp

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/* Copyright 1994 - 1996, LongView Technologies L.L.C. $Revision: 1.3 $ */
/* Copyright (c) 2006, Sun Microsystems, Inc.
All rights reserved.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the 
following conditions are met:

    * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following 
          disclaimer in the documentation and/or other materials provided with the distribution.
    * Neither the name of Sun Microsystems nor the names of its contributors may be used to endorse or promote products derived 
          from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT 
NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL 
THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
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*/

# include "incls/_precompiled.incl"
# include "incls/_nativeInstruction.cpp.incl"


// Implementation of NativeCall

void NativeCall::verify() {
  // make sure code pattern is actually a call imm32 instruction
  if (*(u_char*)instruction_address() != instruction_code) fatal("not a call imm32");
}


void NativeCall::print() {
  std->print_cr("0x%x: call 0x%x", instruction_address(), destination());
}

  NativeCall* nativeCall_at(char* address) {
    NativeCall* call = (NativeCall*)(address - NativeCall::instruction_offset);
    #ifdef ASSERT
      call->verify();
    #endif
    return call;
  }

  NativeCall* nativeCall_from_return_address(char* return_address) {
    NativeCall* call = (NativeCall*)(return_address - NativeCall::return_address_offset);
    #ifdef ASSERT
      call->verify();
    #endif
    return call;
  }

  NativeCall* nativeCall_from_relocInfo(char* displacement_address) {
    NativeCall* call = (NativeCall*)(displacement_address - NativeCall::displacement_offset);
    #ifdef ASSERT
      call->verify();
    #endif
    return call;
  }

// Implementation of NativeMov
void NativeMov::verify() {
  // make sure code pattern is actually a mov reg, imm32 instruction
  if (*(u_char*)instruction_address() & !register_mask != instruction_code) fatal("not a mov reg, imm32");
}


void NativeMov::print() {
  std->print_cr("0x%x: mov reg, 0x%x", instruction_address(), data());
}

  NativeMov* nativeMov_at(char* address) {
    NativeMov* test = (NativeMov*)(address - NativeMov::instruction_offset);
    #ifdef ASSERT
      test->verify();
    #endif
    return test;
  }



// Implementation of NativeTest
void NativeTest::verify() {
  // make sure code pattern is actually a test eax, imm32 instruction
  if (*(u_char*)instruction_address() != instruction_code) fatal("not a test eax, imm32");
}


void NativeTest::print() {
  std->print_cr("0x%x: test eax, 0x%x", instruction_address(), data());
}

NativeTest* nativeTest_at(char* address)
{
    NativeTest* test = (NativeTest*)(address - NativeTest::instruction_offset);
    #ifdef ASSERT
      test->verify();
    #endif
    return test;
}

IC_Info* ic_info_at(char* address)
{
    return (IC_Info*)nativeTest_at(address);
}

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