1// Copyright (c) 2008, Google Inc.
2// 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 are
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7//
8//     * Redistributions of source code must retain the above copyright
9// notice, this list of conditions and the following disclaimer.
10//     * Redistributions in binary form must reproduce the above
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12// in the documentation and/or other materials provided with the
13// distribution.
14//     * Neither the name of Google Inc. nor the names of its
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17//
18// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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21// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
23// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
24// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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28// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29
30// ---
31// Author: Ken Ashcraft <opensource@google.com>
32
33#include "static_vars.h"
34#include <stddef.h>                     // for NULL
35#include <new>                          // for operator new
36#include "internal_logging.h"  // for CHECK_CONDITION
37#include "common.h"
38#include "sampler.h"           // for Sampler
39
40namespace tcmalloc {
41
42SpinLock Static::pageheap_lock_(SpinLock::LINKER_INITIALIZED);
43SizeMap Static::sizemap_;
44CentralFreeListPadded Static::central_cache_[kNumClasses];
45PageHeapAllocator<Span> Static::span_allocator_;
46PageHeapAllocator<StackTrace> Static::stacktrace_allocator_;
47Span Static::sampled_objects_;
48PageHeapAllocator<StackTraceTable::Bucket> Static::bucket_allocator_;
49StackTrace* Static::growth_stacks_ = NULL;
50PageHeap* Static::pageheap_ = NULL;
51
52void Static::InitStaticVars() {
53  sizemap_.Init();
54  span_allocator_.Init();
55  span_allocator_.New(); // Reduce cache conflicts
56  span_allocator_.New(); // Reduce cache conflicts
57  stacktrace_allocator_.Init();
58  bucket_allocator_.Init();
59  // Do a bit of sanitizing: make sure central_cache is aligned properly
60  CHECK_CONDITION((sizeof(central_cache_[0]) % 64) == 0);
61  for (int i = 0; i < kNumClasses; ++i) {
62    central_cache_[i].Init(i);
63  }
64  // It's important to have PageHeap allocated, not in static storage,
65  // so that HeapLeakChecker does not consider all the byte patterns stored
66  // in is caches as pointers that are sources of heap object liveness,
67  // which leads to it missing some memory leaks.
68  pageheap_ = new (MetaDataAlloc(sizeof(PageHeap))) PageHeap;
69  DLL_Init(&sampled_objects_);
70  Sampler::InitStatics();
71}
72
73}  // namespace tcmalloc
74