1*0f4c859eSApple OSS Distributions /*
2*0f4c859eSApple OSS Distributions * Copyright (c) 2010 Apple Inc. All rights reserved.
3*0f4c859eSApple OSS Distributions *
4*0f4c859eSApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
5*0f4c859eSApple OSS Distributions *
6*0f4c859eSApple OSS Distributions * This file contains Original Code and/or Modifications of Original Code
7*0f4c859eSApple OSS Distributions * as defined in and that are subject to the Apple Public Source License
8*0f4c859eSApple OSS Distributions * Version 2.0 (the 'License'). You may not use this file except in
9*0f4c859eSApple OSS Distributions * compliance with the License. The rights granted to you under the License
10*0f4c859eSApple OSS Distributions * may not be used to create, or enable the creation or redistribution of,
11*0f4c859eSApple OSS Distributions * unlawful or unlicensed copies of an Apple operating system, or to
12*0f4c859eSApple OSS Distributions * circumvent, violate, or enable the circumvention or violation of, any
13*0f4c859eSApple OSS Distributions * terms of an Apple operating system software license agreement.
14*0f4c859eSApple OSS Distributions *
15*0f4c859eSApple OSS Distributions * Please obtain a copy of the License at
16*0f4c859eSApple OSS Distributions * http://www.opensource.apple.com/apsl/ and read it before using this file.
17*0f4c859eSApple OSS Distributions *
18*0f4c859eSApple OSS Distributions * The Original Code and all software distributed under the License are
19*0f4c859eSApple OSS Distributions * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
20*0f4c859eSApple OSS Distributions * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21*0f4c859eSApple OSS Distributions * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
22*0f4c859eSApple OSS Distributions * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23*0f4c859eSApple OSS Distributions * Please see the License for the specific language governing rights and
24*0f4c859eSApple OSS Distributions * limitations under the License.
25*0f4c859eSApple OSS Distributions *
26*0f4c859eSApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
27*0f4c859eSApple OSS Distributions */
28*0f4c859eSApple OSS Distributions
29*0f4c859eSApple OSS Distributions #include <TargetConditionals.h>
30*0f4c859eSApple OSS Distributions #include <stddef.h>
31*0f4c859eSApple OSS Distributions #include <stdint.h>
32*0f4c859eSApple OSS Distributions #include "tsd.h"
33*0f4c859eSApple OSS Distributions
34*0f4c859eSApple OSS Distributions /*
35*0f4c859eSApple OSS Distributions * cerror takes the return value of the syscall, being non-zero, and
36*0f4c859eSApple OSS Distributions * stores it in errno. It needs to return -1 to indicate failure but
37*0f4c859eSApple OSS Distributions * 64-bit platforms need to ensure that possible 128-bit wide return
38*0f4c859eSApple OSS Distributions * values are also properly set.
39*0f4c859eSApple OSS Distributions */
40*0f4c859eSApple OSS Distributions #ifdef __LP64__
41*0f4c859eSApple OSS Distributions typedef unsigned __int128 cerror_return_t;
42*0f4c859eSApple OSS Distributions #else
43*0f4c859eSApple OSS Distributions typedef uint64_t cerror_return_t;
44*0f4c859eSApple OSS Distributions #endif
45*0f4c859eSApple OSS Distributions
46*0f4c859eSApple OSS Distributions extern void _pthread_exit_if_canceled(int error);
47*0f4c859eSApple OSS Distributions
48*0f4c859eSApple OSS Distributions #undef errno
49*0f4c859eSApple OSS Distributions int errno;
50*0f4c859eSApple OSS Distributions
51*0f4c859eSApple OSS Distributions int *
__error(void)52*0f4c859eSApple OSS Distributions __error(void)
53*0f4c859eSApple OSS Distributions {
54*0f4c859eSApple OSS Distributions void *ptr = _os_tsd_get_direct(__TSD_ERRNO);
55*0f4c859eSApple OSS Distributions if (ptr != NULL) {
56*0f4c859eSApple OSS Distributions return (int*)ptr;
57*0f4c859eSApple OSS Distributions }
58*0f4c859eSApple OSS Distributions return &errno;
59*0f4c859eSApple OSS Distributions }
60*0f4c859eSApple OSS Distributions
61*0f4c859eSApple OSS Distributions __attribute__((noinline))
62*0f4c859eSApple OSS Distributions cerror_return_t
cerror_nocancel(int err)63*0f4c859eSApple OSS Distributions cerror_nocancel(int err)
64*0f4c859eSApple OSS Distributions {
65*0f4c859eSApple OSS Distributions errno = err;
66*0f4c859eSApple OSS Distributions int *tsderrno = (int*)_os_tsd_get_direct(__TSD_ERRNO);
67*0f4c859eSApple OSS Distributions if (tsderrno) {
68*0f4c859eSApple OSS Distributions *tsderrno = err;
69*0f4c859eSApple OSS Distributions }
70*0f4c859eSApple OSS Distributions return -1;
71*0f4c859eSApple OSS Distributions }
72*0f4c859eSApple OSS Distributions
73*0f4c859eSApple OSS Distributions __attribute__((noinline))
74*0f4c859eSApple OSS Distributions cerror_return_t
cerror(int err)75*0f4c859eSApple OSS Distributions cerror(int err)
76*0f4c859eSApple OSS Distributions {
77*0f4c859eSApple OSS Distributions _pthread_exit_if_canceled(err);
78*0f4c859eSApple OSS Distributions return cerror_nocancel(err);
79*0f4c859eSApple OSS Distributions }
80