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a6963e69 1/* Thread-local storage handling in the ELF dynamic linker. PowerPC version.
04277e02 2 Copyright (C) 2003-2019 Free Software Foundation, Inc.
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3 This file is part of the GNU C Library.
4
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.
9
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.
14
15 You should have received a copy of the GNU Lesser General Public
59ba27a6 16 License along with the GNU C Library; if not, see
5a82c748 17 <https://www.gnu.org/licenses/>. */
afafddab 18
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19#ifndef _PPC_DL_TLS_H
20# define _PPC_DL_TLS_H 1
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21
22/* Type used for the representation of TLS information in the TOC. */
23typedef struct
24{
25 unsigned long int ti_module;
26 unsigned long int ti_offset;
27} tls_index;
28
a6963e69 29/* The thread pointer points 0x7000 past the first static TLS block. */
3093b1c7 30#define TLS_TP_OFFSET 0x7000
a6963e69 31
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32/* Dynamic thread vector pointers point 0x8000 past the start of each
33 TLS block. */
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34#define TLS_DTV_OFFSET 0x8000
35
36/* Compute the value for a @tprel reloc. */
37#define TLS_TPREL_VALUE(sym_map, sym, reloc) \
38 ((sym_map)->l_tls_offset + (sym)->st_value + (reloc)->r_addend \
299601a1 39 - TLS_TP_OFFSET)
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40
41/* Compute the value for a @dtprel reloc. */
42#define TLS_DTPREL_VALUE(sym, reloc) \
43 ((sym)->st_value + (reloc)->r_addend - TLS_DTV_OFFSET)
44
45#ifdef SHARED
46extern void *__tls_get_addr (tls_index *ti);
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47
48# define GET_ADDR_OFFSET (ti->ti_offset + TLS_DTV_OFFSET)
49# define __TLS_GET_ADDR(__ti) (__tls_get_addr (__ti) - TLS_DTV_OFFSET)
afafddab 50#endif
e6c61494 51
873a772e 52#endif /* dl-tls.h */