source: mainline/uspace/lib/c/include/tls.h@ 32573ff

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since 32573ff was 6adb775f, checked in by Jiri Svoboda <jiri@…>, 10 years ago

TLS for dynamically linked executables and initially loaded DSOs (but must not call dlopen or there will be trouble).

  • Property mode set to 100644
File size: 2.2 KB
Line 
1/*
2 * Copyright (c) 2007 Jakub Jermar
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
9 * - Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * - Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * - The name of the author may not be used to endorse or promote products
15 * derived from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29/** @addtogroup libc
30 * @{
31 */
32/** @file
33 */
34
35#ifndef LIBC_TLS_H_
36#define LIBC_TLS_H_
37
38#include <libarch/tls.h>
39#include <sys/types.h>
40
41/*
42 * Symbols defined in the respective linker script.
43 */
44extern char _tls_alignment;
45extern char _tdata_start;
46extern char _tdata_end;
47extern char _tbss_start;
48extern char _tbss_end;
49
50extern tcb_t *tls_make(void);
51extern tcb_t *tls_alloc_arch(void **, size_t);
52extern void tls_free(tcb_t *);
53extern void tls_free_arch(tcb_t *, size_t);
54extern size_t tls_get_size(void);
55
56#ifdef CONFIG_TLS_VARIANT_1
57extern tcb_t *tls_alloc_variant_1(void **, size_t);
58extern void tls_free_variant_1(tcb_t *, size_t);
59#endif
60
61#ifdef CONFIG_TLS_VARIANT_2
62extern tcb_t *tls_alloc_variant_2(void **, size_t);
63extern void tls_free_variant_2(tcb_t *, size_t);
64#endif
65
66#endif
67
68/** @}
69 */
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