1*d4514f0bSApple OSS Distributions /*
2*d4514f0bSApple OSS Distributions * Copyright (c) 2010 Apple Inc. All rights reserved.
3*d4514f0bSApple OSS Distributions *
4*d4514f0bSApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
5*d4514f0bSApple OSS Distributions *
6*d4514f0bSApple OSS Distributions * This file contains Original Code and/or Modifications of Original Code
7*d4514f0bSApple OSS Distributions * as defined in and that are subject to the Apple Public Source License
8*d4514f0bSApple OSS Distributions * Version 2.0 (the 'License'). You may not use this file except in
9*d4514f0bSApple OSS Distributions * compliance with the License. The rights granted to you under the License
10*d4514f0bSApple OSS Distributions * may not be used to create, or enable the creation or redistribution of,
11*d4514f0bSApple OSS Distributions * unlawful or unlicensed copies of an Apple operating system, or to
12*d4514f0bSApple OSS Distributions * circumvent, violate, or enable the circumvention or violation of, any
13*d4514f0bSApple OSS Distributions * terms of an Apple operating system software license agreement.
14*d4514f0bSApple OSS Distributions *
15*d4514f0bSApple OSS Distributions * Please obtain a copy of the License at
16*d4514f0bSApple OSS Distributions * http://www.opensource.apple.com/apsl/ and read it before using this file.
17*d4514f0bSApple OSS Distributions *
18*d4514f0bSApple OSS Distributions * The Original Code and all software distributed under the License are
19*d4514f0bSApple OSS Distributions * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
20*d4514f0bSApple OSS Distributions * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21*d4514f0bSApple OSS Distributions * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
22*d4514f0bSApple OSS Distributions * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23*d4514f0bSApple OSS Distributions * Please see the License for the specific language governing rights and
24*d4514f0bSApple OSS Distributions * limitations under the License.
25*d4514f0bSApple OSS Distributions *
26*d4514f0bSApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
27*d4514f0bSApple OSS Distributions */
28*d4514f0bSApple OSS Distributions
29*d4514f0bSApple OSS Distributions #include <TargetConditionals.h>
30*d4514f0bSApple OSS Distributions #include <stddef.h>
31*d4514f0bSApple OSS Distributions #include <stdint.h>
32*d4514f0bSApple OSS Distributions #include "tsd.h"
33*d4514f0bSApple OSS Distributions
34*d4514f0bSApple OSS Distributions /*
35*d4514f0bSApple OSS Distributions * cerror takes the return value of the syscall, being non-zero, and
36*d4514f0bSApple OSS Distributions * stores it in errno. It needs to return -1 to indicate failure but
37*d4514f0bSApple OSS Distributions * 64-bit platforms need to ensure that possible 128-bit wide return
38*d4514f0bSApple OSS Distributions * values are also properly set.
39*d4514f0bSApple OSS Distributions */
40*d4514f0bSApple OSS Distributions #ifdef __LP64__
41*d4514f0bSApple OSS Distributions typedef unsigned __int128 cerror_return_t;
42*d4514f0bSApple OSS Distributions #else
43*d4514f0bSApple OSS Distributions typedef uint64_t cerror_return_t;
44*d4514f0bSApple OSS Distributions #endif
45*d4514f0bSApple OSS Distributions
46*d4514f0bSApple OSS Distributions extern void _pthread_exit_if_canceled(int error);
47*d4514f0bSApple OSS Distributions
48*d4514f0bSApple OSS Distributions #undef errno
49*d4514f0bSApple OSS Distributions int errno;
50*d4514f0bSApple OSS Distributions
51*d4514f0bSApple OSS Distributions int *
__error(void)52*d4514f0bSApple OSS Distributions __error(void)
53*d4514f0bSApple OSS Distributions {
54*d4514f0bSApple OSS Distributions void *ptr = _os_tsd_get_direct(__TSD_ERRNO);
55*d4514f0bSApple OSS Distributions if (ptr != NULL) {
56*d4514f0bSApple OSS Distributions return (int*)ptr;
57*d4514f0bSApple OSS Distributions }
58*d4514f0bSApple OSS Distributions return &errno;
59*d4514f0bSApple OSS Distributions }
60*d4514f0bSApple OSS Distributions
61*d4514f0bSApple OSS Distributions __attribute__((noinline))
62*d4514f0bSApple OSS Distributions cerror_return_t
cerror_nocancel(int err)63*d4514f0bSApple OSS Distributions cerror_nocancel(int err)
64*d4514f0bSApple OSS Distributions {
65*d4514f0bSApple OSS Distributions errno = err;
66*d4514f0bSApple OSS Distributions int *tsderrno = (int*)_os_tsd_get_direct(__TSD_ERRNO);
67*d4514f0bSApple OSS Distributions if (tsderrno) {
68*d4514f0bSApple OSS Distributions *tsderrno = err;
69*d4514f0bSApple OSS Distributions }
70*d4514f0bSApple OSS Distributions return -1;
71*d4514f0bSApple OSS Distributions }
72*d4514f0bSApple OSS Distributions
73*d4514f0bSApple OSS Distributions __attribute__((noinline))
74*d4514f0bSApple OSS Distributions cerror_return_t
cerror(int err)75*d4514f0bSApple OSS Distributions cerror(int err)
76*d4514f0bSApple OSS Distributions {
77*d4514f0bSApple OSS Distributions _pthread_exit_if_canceled(err);
78*d4514f0bSApple OSS Distributions return cerror_nocancel(err);
79*d4514f0bSApple OSS Distributions }
80