1/*
2 * Copyright (C) 2009, 2017 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#pragma once
27
28#include "BPlatform.h"
29
30// On Mac OS X, the VM subsystem allows tagging memory requested from mmap and vm_map
31// in order to aid tools that inspect system memory use.
32#if BOS(DARWIN)
33
34#include <mach/vm_statistics.h>
35
36#if defined(VM_MEMORY_TCMALLOC)
37#define VM_TAG_FOR_TCMALLOC_MEMORY VM_MAKE_TAG(VM_MEMORY_TCMALLOC)
38#else
39#define VM_TAG_FOR_TCMALLOC_MEMORY VM_MAKE_TAG(53)
40#endif // defined(VM_MEMORY_TCMALLOC)
41
42#if defined(VM_MEMORY_JAVASCRIPT_JIT_EXECUTABLE_ALLOCATOR)
43#define VM_TAG_FOR_EXECUTABLEALLOCATOR_MEMORY VM_MAKE_TAG(VM_MEMORY_JAVASCRIPT_JIT_EXECUTABLE_ALLOCATOR)
44#else
45#define VM_TAG_FOR_EXECUTABLEALLOCATOR_MEMORY VM_MAKE_TAG(64)
46#endif // defined(VM_MEMORY_JAVASCRIPT_JIT_EXECUTABLE_ALLOCATOR)
47
48#if defined(VM_MEMORY_JAVASCRIPT_JIT_REGISTER_FILE)
49#define VM_TAG_FOR_REGISTERFILE_MEMORY VM_MAKE_TAG(VM_MEMORY_JAVASCRIPT_JIT_REGISTER_FILE)
50#else
51#define VM_TAG_FOR_REGISTERFILE_MEMORY VM_MAKE_TAG(65)
52#endif // defined(VM_MEMORY_JAVASCRIPT_JIT_REGISTER_FILE)
53
54#if defined(VM_MEMORY_JAVASCRIPT_CORE)
55#define VM_TAG_FOR_GIGACAGE_MEMORY VM_MAKE_TAG(VM_MEMORY_JAVASCRIPT_CORE)
56#else
57#define VM_TAG_FOR_GIGACAGE_MEMORY VM_MAKE_TAG(63)
58#endif // defined(VM_MEMORY_JAVASCRIPT_CORE)
59
60#else // BOS(DARWIN)
61
62#define VM_TAG_FOR_TCMALLOC_MEMORY -1
63#define VM_TAG_FOR_GIGACAGE_MEMORY -1
64#define VM_TAG_FOR_EXECUTABLEALLOCATOR_MEMORY -1
65#define VM_TAG_FOR_REGISTERFILE_MEMORY -1
66
67#endif // BOS(DARWIN)
68
69namespace bmalloc {
70
71enum class VMTag {
72 Unknown = -1,
73 Malloc = VM_TAG_FOR_TCMALLOC_MEMORY,
74 JSVMStack = VM_TAG_FOR_REGISTERFILE_MEMORY,
75 JSJITCode = VM_TAG_FOR_EXECUTABLEALLOCATOR_MEMORY,
76 JSGigacage = VM_TAG_FOR_GIGACAGE_MEMORY,
77};
78
79} // namespace bmalloc
80