1*e7776783SApple OSS Distributions /*
2*e7776783SApple OSS Distributions * Copyright (c) 2010 Apple Inc. All rights reserved.
3*e7776783SApple OSS Distributions *
4*e7776783SApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
5*e7776783SApple OSS Distributions *
6*e7776783SApple OSS Distributions * This file contains Original Code and/or Modifications of Original Code
7*e7776783SApple OSS Distributions * as defined in and that are subject to the Apple Public Source License
8*e7776783SApple OSS Distributions * Version 2.0 (the 'License'). You may not use this file except in
9*e7776783SApple OSS Distributions * compliance with the License. The rights granted to you under the License
10*e7776783SApple OSS Distributions * may not be used to create, or enable the creation or redistribution of,
11*e7776783SApple OSS Distributions * unlawful or unlicensed copies of an Apple operating system, or to
12*e7776783SApple OSS Distributions * circumvent, violate, or enable the circumvention or violation of, any
13*e7776783SApple OSS Distributions * terms of an Apple operating system software license agreement.
14*e7776783SApple OSS Distributions *
15*e7776783SApple OSS Distributions * Please obtain a copy of the License at
16*e7776783SApple OSS Distributions * http://www.opensource.apple.com/apsl/ and read it before using this file.
17*e7776783SApple OSS Distributions *
18*e7776783SApple OSS Distributions * The Original Code and all software distributed under the License are
19*e7776783SApple OSS Distributions * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
20*e7776783SApple OSS Distributions * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21*e7776783SApple OSS Distributions * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
22*e7776783SApple OSS Distributions * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23*e7776783SApple OSS Distributions * Please see the License for the specific language governing rights and
24*e7776783SApple OSS Distributions * limitations under the License.
25*e7776783SApple OSS Distributions *
26*e7776783SApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
27*e7776783SApple OSS Distributions */
28*e7776783SApple OSS Distributions
29*e7776783SApple OSS Distributions #include <TargetConditionals.h>
30*e7776783SApple OSS Distributions #include <stddef.h>
31*e7776783SApple OSS Distributions #include <stdint.h>
32*e7776783SApple OSS Distributions #include "tsd.h"
33*e7776783SApple OSS Distributions
34*e7776783SApple OSS Distributions /*
35*e7776783SApple OSS Distributions * cerror takes the return value of the syscall, being non-zero, and
36*e7776783SApple OSS Distributions * stores it in errno. It needs to return -1 to indicate failure but
37*e7776783SApple OSS Distributions * 64-bit platforms need to ensure that possible 128-bit wide return
38*e7776783SApple OSS Distributions * values are also properly set.
39*e7776783SApple OSS Distributions */
40*e7776783SApple OSS Distributions #ifdef __LP64__
41*e7776783SApple OSS Distributions typedef unsigned __int128 cerror_return_t;
42*e7776783SApple OSS Distributions #else
43*e7776783SApple OSS Distributions typedef uint64_t cerror_return_t;
44*e7776783SApple OSS Distributions #endif
45*e7776783SApple OSS Distributions
46*e7776783SApple OSS Distributions extern void _pthread_exit_if_canceled(int error);
47*e7776783SApple OSS Distributions
48*e7776783SApple OSS Distributions #undef errno
49*e7776783SApple OSS Distributions int errno;
50*e7776783SApple OSS Distributions
51*e7776783SApple OSS Distributions int *
__error(void)52*e7776783SApple OSS Distributions __error(void)
53*e7776783SApple OSS Distributions {
54*e7776783SApple OSS Distributions void *ptr = _os_tsd_get_direct(__TSD_ERRNO);
55*e7776783SApple OSS Distributions if (ptr != NULL) {
56*e7776783SApple OSS Distributions return (int*)ptr;
57*e7776783SApple OSS Distributions }
58*e7776783SApple OSS Distributions return &errno;
59*e7776783SApple OSS Distributions }
60*e7776783SApple OSS Distributions
61*e7776783SApple OSS Distributions __attribute__((noinline))
62*e7776783SApple OSS Distributions cerror_return_t
cerror_nocancel(int err)63*e7776783SApple OSS Distributions cerror_nocancel(int err)
64*e7776783SApple OSS Distributions {
65*e7776783SApple OSS Distributions errno = err;
66*e7776783SApple OSS Distributions int *tsderrno = (int*)_os_tsd_get_direct(__TSD_ERRNO);
67*e7776783SApple OSS Distributions if (tsderrno) {
68*e7776783SApple OSS Distributions *tsderrno = err;
69*e7776783SApple OSS Distributions }
70*e7776783SApple OSS Distributions return -1;
71*e7776783SApple OSS Distributions }
72*e7776783SApple OSS Distributions
73*e7776783SApple OSS Distributions __attribute__((noinline))
74*e7776783SApple OSS Distributions cerror_return_t
cerror(int err)75*e7776783SApple OSS Distributions cerror(int err)
76*e7776783SApple OSS Distributions {
77*e7776783SApple OSS Distributions _pthread_exit_if_canceled(err);
78*e7776783SApple OSS Distributions return cerror_nocancel(err);
79*e7776783SApple OSS Distributions }
80