1 /* 2 * Copyright (C) 2008 The Android Open Source Project 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in 12 * the documentation and/or other materials provided with the 13 * distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 16 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 17 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 18 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 19 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 21 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS 22 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 23 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 24 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 25 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 #ifndef _ERRNO_H 29 #define _ERRNO_H 30 31 #include <sys/cdefs.h> 32 #include <linux/errno.h> 33 34 __BEGIN_DECLS 35 36 /* on Linux, ENOTSUP and EOPNOTSUPP are defined as the same error code 37 * even if 1000.3 states that they should be different 38 */ 39 #ifndef ENOTSUP 40 #define ENOTSUP EOPNOTSUPP 41 #endif 42 43 /* internal function that should *only* be called from system calls */ 44 /* use errno = xxxx instead in C code */ 45 extern int __set_errno(int error); 46 47 /* internal function returning the address of the thread-specific errno */ 48 extern volatile int* __errno(void); 49 50 /* a macro expanding to the errno l-value */ 51 #define errno (*__errno()) 52 53 __END_DECLS 54 55 #endif /* _ERRNO_H */ 56
