48 lines
1.7 KiB
C++
48 lines
1.7 KiB
C++
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/*
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* Copyright 2014-present Facebook, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <folly/memory/detail/MallocImpl.h>
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extern "C" {
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#ifdef _MSC_VER
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// MSVC doesn't have weak symbols, so do some linker magic
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// to emulate them. (the magic is in the header)
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const char* mallocxWeak = nullptr;
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const char* rallocxWeak = nullptr;
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const char* xallocxWeak = nullptr;
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const char* sallocxWeak = nullptr;
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const char* dallocxWeak = nullptr;
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const char* sdallocxWeak = nullptr;
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const char* nallocxWeak = nullptr;
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const char* mallctlWeak = nullptr;
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const char* mallctlnametomibWeak = nullptr;
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const char* mallctlbymibWeak = nullptr;
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#elif !FOLLY_HAVE_WEAK_SYMBOLS
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void* (*mallocx)(size_t, int) = nullptr;
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void* (*rallocx)(void*, size_t, int) = nullptr;
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size_t (*xallocx)(void*, size_t, size_t, int) = nullptr;
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size_t (*sallocx)(const void*, int) = nullptr;
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void (*dallocx)(void*, int) = nullptr;
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void (*sdallocx)(void*, size_t, int) = nullptr;
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size_t (*nallocx)(size_t, int) = nullptr;
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int (*mallctl)(const char*, void*, size_t*, void*, size_t) = nullptr;
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int (*mallctlnametomib)(const char*, size_t*, size_t*) = nullptr;
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int (*mallctlbymib)(const size_t*, size_t, void*, size_t*, void*, size_t) =
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nullptr;
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#endif
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}
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