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1 /*
2  * Copyright (C) 2012 The Android Open Source Project
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 #define _BSD_SOURCE
20 #define _GNU_SOURCE 1
21 
22 // NetBSD uses _DIAGASSERT to null-check arguments and the like,
23 // but it's clear from the number of mistakes in their assertions
24 // that they don't actually test or ship with this.
25 #define _DIAGASSERT(e) /* nothing */
26 
27 /*
28  * The following macro is used to remove const cast-away warnings
29  * from gcc -Wcast-qual; it should be used with caution because it
30  * can hide valid errors; in particular most valid uses are in
31  * situations where the API requires it, not to cast away string
32  * constants. We don't use *intptr_t on purpose here and we are
33  * explicit about unsigned long so that we don't have additional
34  * dependencies.
35  */
36 #define __UNCONST(a)    ((void *)(unsigned long)(const void *)(a))
37 
38 // TODO: we don't yet have thread-safe environment variables.
39 #define __readlockenv() 0
40 #define __unlockenv() 0
41 
42 #include <sys/cdefs.h>
43 #include <stddef.h>
44 int reallocarr(void*, size_t, size_t);
45 
46 #define __arraycount(a) (sizeof(a) / sizeof(a[0]))
47 
48 /* Use appropriate shell depending on process's executable. */
49 __LIBC_HIDDEN__ extern const char* __bionic_get_shell_path();
50 #define _PATH_BSHELL __bionic_get_shell_path()
51