root / lab4 / .minix-src / include / sys / tls.h @ 14
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| 1 | 13 | up20180614 | /* $NetBSD: tls.h,v 1.1 2011/03/09 23:10:07 joerg Exp $ */
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| 2 | /*-
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| 3 | * Copyright (c) 2011 The NetBSD Foundation, Inc.
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| 4 | * All rights reserved.
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| 5 | *
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| 6 | * This code is derived from software contributed to The NetBSD Foundation
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| 7 | * by Joerg Sonnenberger.
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| 8 | *
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| 9 | * Redistribution and use in source and binary forms, with or without
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| 10 | * modification, are permitted provided that the following conditions
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| 11 | * are met:
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| 12 | * 1. Redistributions of source code must retain the above copyright
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| 13 | * notice, this list of conditions and the following disclaimer.
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| 14 | * 2. Redistributions in binary form must reproduce the above copyright
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| 15 | * notice, this list of conditions and the following disclaimer in the
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| 16 | * documentation and/or other materials provided with the distribution.
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| 17 | *
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| 18 | * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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| 19 | * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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| 20 | * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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| 21 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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| 22 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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| 23 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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| 24 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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| 25 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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| 26 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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| 27 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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| 28 | * POSSIBILITY OF SUCH DAMAGE.
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| 29 | */
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| 30 | |||
| 31 | #ifndef _SYS_TLS_H_
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| 32 | #define _SYS_TLS_H_
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| 33 | |||
| 34 | #include <sys/cdefs.h> |
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| 35 | #include <machine/types.h> |
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| 36 | |||
| 37 | #if defined(__HAVE_TLS_VARIANT_I) || defined(__HAVE_TLS_VARIANT_II)
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| 38 | |||
| 39 | #if defined(__HAVE_TLS_VARIANT_I) && defined(__HAVE_TLS_VARIANT_II)
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| 40 | #error Only one TLS variant can be supported at a time
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| 41 | #endif
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| 42 | |||
| 43 | struct tls_tcb {
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| 44 | #ifdef __HAVE_TLS_VARIANT_I
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| 45 | void **tcb_dtv;
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| 46 | void *tcb_pthread;
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| 47 | #else
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| 48 | void *tcb_self;
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| 49 | void **tcb_dtv;
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| 50 | void *tcb_pthread;
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| 51 | #endif
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| 52 | }; |
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| 53 | |||
| 54 | __BEGIN_PUBLIC_DECLS |
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| 55 | struct tls_tcb *_rtld_tls_allocate(void); |
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| 56 | void _rtld_tls_free(struct tls_tcb *); |
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| 57 | void _rtld_tls_static_setup(void); |
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| 58 | __END_PUBLIC_DECLS |
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| 59 | #endif /* __HAVE_TLS_VARIANT_I || __HAVE_TLS_VARIANT_II */ |
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| 60 | |||
| 61 | #endif /* _SYS_TLS_H_ */ |