xref: /aosp_15_r20/bionic/libc/upstream-netbsd/android/include/netbsd-compat.h (revision 8d67ca893c1523eb926b9080dbe4e2ffd2a27ba1)

/*
 * Copyright (C) 2012 The Android Open Source Project
 *
 * 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

#define _BSD_SOURCE
#define _GNU_SOURCE 1

// NetBSD uses _DIAGASSERT to null-check arguments and the like,
// but it's clear from the number of mistakes in their assertions
// that they don't actually test or ship with this.
#define _DIAGASSERT(e) /* nothing */

/*
 * The following macro is used to remove const cast-away warnings
 * from gcc -Wcast-qual; it should be used with caution because it
 * can hide valid errors; in particular most valid uses are in
 * situations where the API requires it, not to cast away string
 * constants. We don't use *intptr_t on purpose here and we are
 * explicit about unsigned long so that we don't have additional
 * dependencies.
 */
#define __UNCONST(a)    ((void *)(unsigned long)(const void *)(a))

// TODO: we don't yet have thread-safe environment variables.
#define __readlockenv() 0
#define __unlockenv() 0

#include <sys/cdefs.h>
#include <stddef.h>
int reallocarr(void*, size_t, size_t);

#define __arraycount(a) (sizeof(a) / sizeof(a[0]))

/* Use appropriate shell depending on process's executable. */
__LIBC_HIDDEN__ extern const char* __bionic_get_shell_path();
#define _PATH_BSHELL __bionic_get_shell_path()