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| 1 | /* Thread-local storage handling in the ELF dynamic linker. M68K version. |
|---|---|
| 2 | Copyright (C) 2010-2022 Free Software Foundation, Inc. |
| 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 |
| 16 | License along with the GNU C Library. If not, see |
| 17 | <https://www.gnu.org/licenses/>. */ |
| 18 | |
| 19 | |
| 20 | /* Type used for the representation of TLS information in the GOT. */ |
| 21 | typedef struct |
| 22 | { |
| 23 | unsigned long int ti_module; |
| 24 | unsigned long int ti_offset; |
| 25 | } tls_index; |
| 26 | |
| 27 | /* The thread pointer points 0x7000 past the first static TLS block. */ |
| 28 | #define TLS_TP_OFFSET 0x7000 |
| 29 | |
| 30 | /* Dynamic thread vector pointers point 0x8000 past the start of each |
| 31 | TLS block. */ |
| 32 | #define TLS_DTV_OFFSET 0x8000 |
| 33 | |
| 34 | /* Compute the value for a TPREL reloc. */ |
| 35 | #define TLS_TPREL_VALUE(sym_map, sym, reloc) \ |
| 36 | ((sym_map)->l_tls_offset + (sym)->st_value + (reloc)->r_addend \ |
| 37 | - TLS_TP_OFFSET) |
| 38 | |
| 39 | /* Compute the value for a DTPREL reloc. */ |
| 40 | #define TLS_DTPREL_VALUE(sym, reloc) \ |
| 41 | ((sym)->st_value + (reloc)->r_addend - TLS_DTV_OFFSET) |
| 42 | |
| 43 | extern void *__tls_get_addr (tls_index *ti); |
| 44 | |
| 45 | #define GET_ADDR_OFFSET (ti->ti_offset + TLS_DTV_OFFSET) |
| 46 | #define __TLS_GET_ADDR(__ti) (__tls_get_addr (__ti) - TLS_DTV_OFFSET) |
| 47 |
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