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main_repo / deps / v8 / src / simulator-ia32.h @ 40c0f755

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// Copyright 2008 the V8 project authors. All rights reserved.
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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//     * Redistributions of source code must retain the above copyright
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//       notice, this list of conditions and the following disclaimer.
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//     * Redistributions in binary form must reproduce the above
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//       copyright notice, this list of conditions and the following
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//       disclaimer in the documentation and/or other materials provided
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//       with the distribution.
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//     * Neither the name of Google Inc. nor the names of its
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//       contributors may be used to endorse or promote products derived
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//       from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#ifndef V8_SIMULATOR_IA32_H_


    		
  

  

    
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#define V8_SIMULATOR_IA32_H_


    		
  

  

    
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// Since there is no simulator for the ia32 architecture the only thing we can


    		
  

  

    
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// do is to call the entry directly.


    		
  

  

    
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#define CALL_GENERATED_CODE(entry, p0, p1, p2, p3, p4) \


    		
  

  

    
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  entry(p0, p1, p2, p3, p4);


    		
  

  

    
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// Calculated the stack limit beyond which we will throw stack overflow errors.


    		
  

  

    
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// This macro must be called from a C++ method. It relies on being able to take


    		
  

  

    
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// the address of "this" to get a value on the current execution stack and then


    		
  

  

    
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// calculates the stack limit based on that value.


    		
  

  

    
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// NOTE: The check for overflow is not safe as there is no guarantee that the


    		
  

  

    
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// running thread has its stack in all memory up to address 0x00000000.


    		
  

  

    
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#define GENERATED_CODE_STACK_LIMIT(limit) \


    		
  

  

    
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  (reinterpret_cast<uintptr_t>(this) >= limit ? \


    		
  

  

    
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      reinterpret_cast<uintptr_t>(this) - limit : 0)


    		
  

  

    
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#endif  // V8_SIMULATOR_IA32_H_