1 /* Thread-local storage handling in the ELF dynamic linker. PowerPC version. 2 Copyright (C) 2003 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, write to the Free 17 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 18 02111-1307 USA. */ 19 20 21 /* Type used for the representation of TLS information in the TOC. */ 22 typedef struct 23 { 24 unsigned long int ti_module; 25 unsigned long int ti_offset; 26 } tls_index; 27 28 /* The thread pointer points 0x7000 past the first static TLS block. */ 29 #define TLS_TP_OFFSET 0x7000 30 31 /* Dynamic thread vector pointers point 0x8000 past the start of each 32 TLS block. */ 33 #define TLS_DTV_OFFSET 0x8000 34 35 /* Compute the value for a @tprel reloc. */ 36 #define TLS_TPREL_VALUE(sym_map, sym, reloc) \ 37 ((sym_map)->l_tls_offset + (sym)->st_value + (reloc)->r_addend \ 38 - TLS_TP_OFFSET) 39 40 /* Compute the value for a @dtprel reloc. */ 41 #define TLS_DTPREL_VALUE(sym, reloc) \ 42 ((sym)->st_value + (reloc)->r_addend - TLS_DTV_OFFSET) 43 44 #ifdef SHARED 45 extern void *__tls_get_addr (tls_index *ti); 46 47 # define GET_ADDR_OFFSET (ti->ti_offset + TLS_DTV_OFFSET) 48 # define __TLS_GET_ADDR(__ti) (__tls_get_addr (__ti) - TLS_DTV_OFFSET) 49 #endif 50