sysdeps/powerpc/dl-tls.h

   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
  29 #ifdef SHARED
  30
  31 extern void *__tls_get_addr (tls_index *ti);
  32
  33 /* The thread pointer points 0x7000 past the first static TLS block.  */
  34 # define TLS_TP_OFFSET          0x7000
  35
  36 /* Dynamic thread vector pointers point 0x8000 past the start of each
  37    TLS block.  */
  38 # define TLS_DTV_OFFSET         0x8000
  39
  40 # define GET_ADDR_OFFSET        (ti->ti_offset + TLS_DTV_OFFSET)
  41 # define __TLS_GET_ADDR(__ti)   (__tls_get_addr (__ti) - TLS_DTV_OFFSET)
  42
  43 #endif