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      1 /*
      2  * Copyright (C) 2009 Apple Inc. All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions
      6  * are met:
      7  * 1. Redistributions of source code must retain the above copyright
      8  *    notice, this list of conditions and the following disclaimer.
      9  * 2. Redistributions in binary form must reproduce the above copyright
     10  *    notice, this list of conditions and the following disclaimer in the
     11  *    documentation and/or other materials provided with the distribution.
     12  *
     13  * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
     14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     16  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
     17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
     18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
     20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
     21  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     24  */
     25 
     26 #ifndef VMTags_h
     27 #define VMTags_h
     28 
     29 #include <wtf/Platform.h>
     30 
     31 // On Mac OS X, the VM subsystem allows tagging memory requested from mmap and vm_map
     32 // in order to aid tools that inspect system memory use.
     33 #if OS(DARWIN) && !defined(BUILDING_ON_TIGER)
     34 
     35 #include <mach/vm_statistics.h>
     36 
     37 #if defined(VM_MEMORY_JAVASCRIPT_CORE) && defined(VM_MEMORY_JAVASCRIPT_JIT_REGISTER_FILE) && defined(VM_MEMORY_JAVASCRIPT_JIT_EXECUTABLE_ALLOCATOR) && defined(VM_MEMORY_JAVASCRIPT_JIT_EXECUTABLE_ALLOCATOR)
     38 #define VM_TAG_FOR_COLLECTOR_MEMORY VM_MAKE_TAG(VM_MEMORY_JAVASCRIPT_CORE)
     39 #define VM_TAG_FOR_REGISTERFILE_MEMORY VM_MAKE_TAG(VM_MEMORY_JAVASCRIPT_JIT_REGISTER_FILE)
     40 #define VM_TAG_FOR_EXECUTABLEALLOCATOR_MEMORY VM_MAKE_TAG(VM_MEMORY_JAVASCRIPT_JIT_EXECUTABLE_ALLOCATOR)
     41 #else
     42 #define VM_TAG_FOR_COLLECTOR_MEMORY VM_MAKE_TAG(63)
     43 #define VM_TAG_FOR_EXECUTABLEALLOCATOR_MEMORY VM_MAKE_TAG(64)
     44 #define VM_TAG_FOR_REGISTERFILE_MEMORY VM_MAKE_TAG(65)
     45 #endif // defined(VM_MEMORY_JAVASCRIPT_CORE) && defined(VM_MEMORY_JAVASCRIPT_JIT_REGISTER_FILE) && defined(VM_MEMORY_JAVASCRIPT_JIT_EXECUTABLE_ALLOCATOR) && defined(VM_MEMORY_JAVASCRIPT_JIT_EXECUTABLE_ALLOCATOR)
     46 
     47 #else // OS(DARWIN) && !defined(BUILDING_ON_TIGER)
     48 
     49 #define VM_TAG_FOR_COLLECTOR_MEMORY -1
     50 #define VM_TAG_FOR_EXECUTABLEALLOCATOR_MEMORY -1
     51 #define VM_TAG_FOR_REGISTERFILE_MEMORY -1
     52 
     53 #endif // OS(DARWIN) && !defined(BUILDING_ON_TIGER)
     54 
     55 #endif // VMTags_h
     56