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sourceware.org Git - glibc.git/blob - sysdeps/ia64/libc-tls.c
1 /* Thread-local storage handling in the ELF dynamic linker. IA-64 version.
2 Copyright (C) 2003-2021 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <https://www.gnu.org/licenses/>. */
19 #include <csu/libc-tls.c>
21 _Static_assert (TLS_PRE_TCB_SIZE
% __alignof (struct pthread
) == 0,
22 "__thread_self and THREAD_SELF have same alignment");
24 /* On IA-64, as it lacks linker optimizations, __tls_get_addr can be
25 called even in statically linked binaries.
26 In this case module must be always 1 and PT_TLS segment
27 exist in the binary, otherwise it would not link. */
30 __tls_get_addr (size_t m
, size_t offset
)
32 dtv_t
*dtv
= THREAD_DTV ();
33 return (char *) dtv
[1].pointer
.val
+ offset
;
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