1*1031c584SApple OSS Distributions /*
2*1031c584SApple OSS Distributions * Copyright (c) 2010 Apple Inc. All rights reserved.
3*1031c584SApple OSS Distributions *
4*1031c584SApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
5*1031c584SApple OSS Distributions *
6*1031c584SApple OSS Distributions * This file contains Original Code and/or Modifications of Original Code
7*1031c584SApple OSS Distributions * as defined in and that are subject to the Apple Public Source License
8*1031c584SApple OSS Distributions * Version 2.0 (the 'License'). You may not use this file except in
9*1031c584SApple OSS Distributions * compliance with the License. The rights granted to you under the License
10*1031c584SApple OSS Distributions * may not be used to create, or enable the creation or redistribution of,
11*1031c584SApple OSS Distributions * unlawful or unlicensed copies of an Apple operating system, or to
12*1031c584SApple OSS Distributions * circumvent, violate, or enable the circumvention or violation of, any
13*1031c584SApple OSS Distributions * terms of an Apple operating system software license agreement.
14*1031c584SApple OSS Distributions *
15*1031c584SApple OSS Distributions * Please obtain a copy of the License at
16*1031c584SApple OSS Distributions * http://www.opensource.apple.com/apsl/ and read it before using this file.
17*1031c584SApple OSS Distributions *
18*1031c584SApple OSS Distributions * The Original Code and all software distributed under the License are
19*1031c584SApple OSS Distributions * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
20*1031c584SApple OSS Distributions * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21*1031c584SApple OSS Distributions * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
22*1031c584SApple OSS Distributions * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23*1031c584SApple OSS Distributions * Please see the License for the specific language governing rights and
24*1031c584SApple OSS Distributions * limitations under the License.
25*1031c584SApple OSS Distributions *
26*1031c584SApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
27*1031c584SApple OSS Distributions */
28*1031c584SApple OSS Distributions
29*1031c584SApple OSS Distributions #include <TargetConditionals.h>
30*1031c584SApple OSS Distributions #include <stddef.h>
31*1031c584SApple OSS Distributions #include <stdint.h>
32*1031c584SApple OSS Distributions #include "tsd.h"
33*1031c584SApple OSS Distributions
34*1031c584SApple OSS Distributions /*
35*1031c584SApple OSS Distributions * cerror takes the return value of the syscall, being non-zero, and
36*1031c584SApple OSS Distributions * stores it in errno. It needs to return -1 to indicate failure but
37*1031c584SApple OSS Distributions * 64-bit platforms need to ensure that possible 128-bit wide return
38*1031c584SApple OSS Distributions * values are also properly set.
39*1031c584SApple OSS Distributions */
40*1031c584SApple OSS Distributions #ifdef __LP64__
41*1031c584SApple OSS Distributions typedef unsigned __int128 cerror_return_t;
42*1031c584SApple OSS Distributions #else
43*1031c584SApple OSS Distributions typedef uint64_t cerror_return_t;
44*1031c584SApple OSS Distributions #endif
45*1031c584SApple OSS Distributions
46*1031c584SApple OSS Distributions extern void _pthread_exit_if_canceled(int error);
47*1031c584SApple OSS Distributions
48*1031c584SApple OSS Distributions #undef errno
49*1031c584SApple OSS Distributions int errno;
50*1031c584SApple OSS Distributions
51*1031c584SApple OSS Distributions int *
__error(void)52*1031c584SApple OSS Distributions __error(void)
53*1031c584SApple OSS Distributions {
54*1031c584SApple OSS Distributions void *ptr = _os_tsd_get_direct(__TSD_ERRNO);
55*1031c584SApple OSS Distributions if (ptr != NULL) {
56*1031c584SApple OSS Distributions return (int*)ptr;
57*1031c584SApple OSS Distributions }
58*1031c584SApple OSS Distributions return &errno;
59*1031c584SApple OSS Distributions }
60*1031c584SApple OSS Distributions
61*1031c584SApple OSS Distributions __attribute__((noinline))
62*1031c584SApple OSS Distributions cerror_return_t
cerror_nocancel(int err)63*1031c584SApple OSS Distributions cerror_nocancel(int err)
64*1031c584SApple OSS Distributions {
65*1031c584SApple OSS Distributions errno = err;
66*1031c584SApple OSS Distributions int *tsderrno = (int*)_os_tsd_get_direct(__TSD_ERRNO);
67*1031c584SApple OSS Distributions if (tsderrno) {
68*1031c584SApple OSS Distributions *tsderrno = err;
69*1031c584SApple OSS Distributions }
70*1031c584SApple OSS Distributions return -1;
71*1031c584SApple OSS Distributions }
72*1031c584SApple OSS Distributions
73*1031c584SApple OSS Distributions __attribute__((noinline))
74*1031c584SApple OSS Distributions cerror_return_t
cerror(int err)75*1031c584SApple OSS Distributions cerror(int err)
76*1031c584SApple OSS Distributions {
77*1031c584SApple OSS Distributions _pthread_exit_if_canceled(err);
78*1031c584SApple OSS Distributions return cerror_nocancel(err);
79*1031c584SApple OSS Distributions }
80