1*d8b80295SApple OSS Distributions /*
2*d8b80295SApple OSS Distributions * Copyright (c) 2010 Apple Inc. All rights reserved.
3*d8b80295SApple OSS Distributions *
4*d8b80295SApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
5*d8b80295SApple OSS Distributions *
6*d8b80295SApple OSS Distributions * This file contains Original Code and/or Modifications of Original Code
7*d8b80295SApple OSS Distributions * as defined in and that are subject to the Apple Public Source License
8*d8b80295SApple OSS Distributions * Version 2.0 (the 'License'). You may not use this file except in
9*d8b80295SApple OSS Distributions * compliance with the License. The rights granted to you under the License
10*d8b80295SApple OSS Distributions * may not be used to create, or enable the creation or redistribution of,
11*d8b80295SApple OSS Distributions * unlawful or unlicensed copies of an Apple operating system, or to
12*d8b80295SApple OSS Distributions * circumvent, violate, or enable the circumvention or violation of, any
13*d8b80295SApple OSS Distributions * terms of an Apple operating system software license agreement.
14*d8b80295SApple OSS Distributions *
15*d8b80295SApple OSS Distributions * Please obtain a copy of the License at
16*d8b80295SApple OSS Distributions * http://www.opensource.apple.com/apsl/ and read it before using this file.
17*d8b80295SApple OSS Distributions *
18*d8b80295SApple OSS Distributions * The Original Code and all software distributed under the License are
19*d8b80295SApple OSS Distributions * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
20*d8b80295SApple OSS Distributions * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21*d8b80295SApple OSS Distributions * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
22*d8b80295SApple OSS Distributions * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23*d8b80295SApple OSS Distributions * Please see the License for the specific language governing rights and
24*d8b80295SApple OSS Distributions * limitations under the License.
25*d8b80295SApple OSS Distributions *
26*d8b80295SApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
27*d8b80295SApple OSS Distributions */
28*d8b80295SApple OSS Distributions
29*d8b80295SApple OSS Distributions #include <TargetConditionals.h>
30*d8b80295SApple OSS Distributions #include <stddef.h>
31*d8b80295SApple OSS Distributions #include <stdint.h>
32*d8b80295SApple OSS Distributions #include "tsd.h"
33*d8b80295SApple OSS Distributions
34*d8b80295SApple OSS Distributions /*
35*d8b80295SApple OSS Distributions * cerror takes the return value of the syscall, being non-zero, and
36*d8b80295SApple OSS Distributions * stores it in errno. It needs to return -1 to indicate failure but
37*d8b80295SApple OSS Distributions * 64-bit platforms need to ensure that possible 128-bit wide return
38*d8b80295SApple OSS Distributions * values are also properly set.
39*d8b80295SApple OSS Distributions */
40*d8b80295SApple OSS Distributions #ifdef __LP64__
41*d8b80295SApple OSS Distributions typedef unsigned __int128 cerror_return_t;
42*d8b80295SApple OSS Distributions #else
43*d8b80295SApple OSS Distributions typedef uint64_t cerror_return_t;
44*d8b80295SApple OSS Distributions #endif
45*d8b80295SApple OSS Distributions
46*d8b80295SApple OSS Distributions extern void _pthread_exit_if_canceled(int error);
47*d8b80295SApple OSS Distributions
48*d8b80295SApple OSS Distributions #undef errno
49*d8b80295SApple OSS Distributions int errno;
50*d8b80295SApple OSS Distributions
51*d8b80295SApple OSS Distributions int *
__error(void)52*d8b80295SApple OSS Distributions __error(void)
53*d8b80295SApple OSS Distributions {
54*d8b80295SApple OSS Distributions void *ptr = _os_tsd_get_direct(__TSD_ERRNO);
55*d8b80295SApple OSS Distributions if (ptr != NULL) {
56*d8b80295SApple OSS Distributions return (int*)ptr;
57*d8b80295SApple OSS Distributions }
58*d8b80295SApple OSS Distributions return &errno;
59*d8b80295SApple OSS Distributions }
60*d8b80295SApple OSS Distributions
61*d8b80295SApple OSS Distributions __attribute__((noinline))
62*d8b80295SApple OSS Distributions cerror_return_t
cerror_nocancel(int err)63*d8b80295SApple OSS Distributions cerror_nocancel(int err)
64*d8b80295SApple OSS Distributions {
65*d8b80295SApple OSS Distributions errno = err;
66*d8b80295SApple OSS Distributions int *tsderrno = (int*)_os_tsd_get_direct(__TSD_ERRNO);
67*d8b80295SApple OSS Distributions if (tsderrno) {
68*d8b80295SApple OSS Distributions *tsderrno = err;
69*d8b80295SApple OSS Distributions }
70*d8b80295SApple OSS Distributions return -1;
71*d8b80295SApple OSS Distributions }
72*d8b80295SApple OSS Distributions
73*d8b80295SApple OSS Distributions __attribute__((noinline))
74*d8b80295SApple OSS Distributions cerror_return_t
cerror(int err)75*d8b80295SApple OSS Distributions cerror(int err)
76*d8b80295SApple OSS Distributions {
77*d8b80295SApple OSS Distributions _pthread_exit_if_canceled(err);
78*d8b80295SApple OSS Distributions return cerror_nocancel(err);
79*d8b80295SApple OSS Distributions }
80