1 | /* |
2 | * Copyright 2013-present Facebook, Inc. |
3 | * |
4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
5 | * you may not use this file except in compliance with the License. |
6 | * You may obtain a copy of the License at |
7 | * |
8 | * http://www.apache.org/licenses/LICENSE-2.0 |
9 | * |
10 | * Unless required by applicable law or agreed to in writing, software |
11 | * distributed under the License is distributed on an "AS IS" BASIS, |
12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
13 | * See the License for the specific language governing permissions and |
14 | * limitations under the License. |
15 | */ |
16 | |
17 | #pragma once |
18 | |
19 | #include <stdlib.h> |
20 | |
21 | #include <folly/Portability.h> |
22 | |
23 | extern "C" { |
24 | |
25 | #if FOLLY_HAVE_WEAK_SYMBOLS |
26 | void* mallocx(size_t, int) __attribute__((__weak__)); |
27 | void* rallocx(void*, size_t, int) __attribute__((__weak__)); |
28 | size_t xallocx(void*, size_t, size_t, int) __attribute__((__weak__)); |
29 | size_t sallocx(const void*, int) __attribute__((__weak__)); |
30 | void dallocx(void*, int) __attribute__((__weak__)); |
31 | void sdallocx(void*, size_t, int) __attribute__((__weak__)); |
32 | size_t nallocx(size_t, int) __attribute__((__weak__)); |
33 | int mallctl(const char*, void*, size_t*, void*, size_t) |
34 | __attribute__((__weak__)); |
35 | int mallctlnametomib(const char*, size_t*, size_t*) __attribute__((__weak__)); |
36 | int mallctlbymib(const size_t*, size_t, void*, size_t*, void*, size_t) |
37 | __attribute__((__weak__)); |
38 | #else |
39 | extern void* (*mallocx)(size_t, int); |
40 | extern void* (*rallocx)(void*, size_t, int); |
41 | extern size_t (*xallocx)(void*, size_t, size_t, int); |
42 | extern size_t (*sallocx)(const void*, int); |
43 | extern void (*dallocx)(void*, int); |
44 | extern void (*sdallocx)(void*, size_t, int); |
45 | extern size_t (*nallocx)(size_t, int); |
46 | extern int (*mallctl)(const char*, void*, size_t*, void*, size_t); |
47 | extern int (*mallctlnametomib)(const char*, size_t*, size_t*); |
48 | extern int ( |
49 | *mallctlbymib)(const size_t*, size_t, void*, size_t*, void*, size_t); |
50 | #ifdef _MSC_VER |
51 | // We emulate weak linkage for MSVC. The symbols we're |
52 | // aliasing to are hiding in MallocImpl.cpp |
53 | #pragma comment(linker, "/alternatename:mallocx=mallocxWeak") |
54 | #pragma comment(linker, "/alternatename:rallocx=rallocxWeak") |
55 | #pragma comment(linker, "/alternatename:xallocx=xallocxWeak") |
56 | #pragma comment(linker, "/alternatename:sallocx=sallocxWeak") |
57 | #pragma comment(linker, "/alternatename:dallocx=dallocxWeak") |
58 | #pragma comment(linker, "/alternatename:sdallocx=sdallocxWeak") |
59 | #pragma comment(linker, "/alternatename:nallocx=nallocxWeak") |
60 | #pragma comment(linker, "/alternatename:mallctl=mallctlWeak") |
61 | #pragma comment(linker, "/alternatename:mallctlnametomib=mallctlnametomibWeak") |
62 | #pragma comment(linker, "/alternatename:mallctlbymib=mallctlbymibWeak") |
63 | #endif |
64 | #endif |
65 | } |
66 | |