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- /*
- * Copyright 2013-present Facebook, Inc.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
- #pragma once
- #include <stdlib.h>
- #include <folly/Portability.h>
- extern "C" {
- #if FOLLY_HAVE_WEAK_SYMBOLS
- void* mallocx(size_t, int) __attribute__((__weak__));
- void* rallocx(void*, size_t, int) __attribute__((__weak__));
- size_t xallocx(void*, size_t, size_t, int) __attribute__((__weak__));
- size_t sallocx(const void*, int) __attribute__((__weak__));
- void dallocx(void*, int) __attribute__((__weak__));
- void sdallocx(void*, size_t, int) __attribute__((__weak__));
- size_t nallocx(size_t, int) __attribute__((__weak__));
- int mallctl(const char*, void*, size_t*, void*, size_t)
- __attribute__((__weak__));
- int mallctlnametomib(const char*, size_t*, size_t*) __attribute__((__weak__));
- int mallctlbymib(const size_t*, size_t, void*, size_t*, void*, size_t)
- __attribute__((__weak__));
- #else
- extern void* (*mallocx)(size_t, int);
- extern void* (*rallocx)(void*, size_t, int);
- extern size_t (*xallocx)(void*, size_t, size_t, int);
- extern size_t (*sallocx)(const void*, int);
- extern void (*dallocx)(void*, int);
- extern void (*sdallocx)(void*, size_t, int);
- extern size_t (*nallocx)(size_t, int);
- extern int (*mallctl)(const char*, void*, size_t*, void*, size_t);
- extern int (*mallctlnametomib)(const char*, size_t*, size_t*);
- extern int (
- *mallctlbymib)(const size_t*, size_t, void*, size_t*, void*, size_t);
- #ifdef _MSC_VER
- // We emulate weak linkage for MSVC. The symbols we're
- // aliasing to are hiding in MallocImpl.cpp
- #pragma comment(linker, "/alternatename:mallocx=mallocxWeak")
- #pragma comment(linker, "/alternatename:rallocx=rallocxWeak")
- #pragma comment(linker, "/alternatename:xallocx=xallocxWeak")
- #pragma comment(linker, "/alternatename:sallocx=sallocxWeak")
- #pragma comment(linker, "/alternatename:dallocx=dallocxWeak")
- #pragma comment(linker, "/alternatename:sdallocx=sdallocxWeak")
- #pragma comment(linker, "/alternatename:nallocx=nallocxWeak")
- #pragma comment(linker, "/alternatename:mallctl=mallctlWeak")
- #pragma comment(linker, "/alternatename:mallctlnametomib=mallctlnametomibWeak")
- #pragma comment(linker, "/alternatename:mallctlbymib=mallctlbymibWeak")
- #endif
- #endif
- }
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