ports/sysdeps/tile/tls-macros.h

   1 /* Copyright (C) 2011-2012 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3    Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
   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    <http://www.gnu.org/licenses/>.  */
  18
  19 #ifdef __tilegx__
  20 #define TLS_GD_OFFSET(x)                        \
  21   "moveli r0, hw1_last_tls_gd(" #x ")\n\t"      \
  22   "shl16insli r0, r0, hw0_tls_gd(" #x ")\n\t"   \
  23   "addi r0, %1, tls_add(" #x ")\n\t"
  24 #else
  25 #define TLS_GD_OFFSET(x)                        \
  26   "auli r0, %1, tls_gd_ha16(" #x ")\n\t"        \
  27   "addli r0, r0, tls_gd_lo16(" #x ")\n\t"
  28 #endif
  29
  30 #define TLS_GD(x)                                               \
  31   ({                                                            \
  32     int *__retval;                                              \
  33     extern char _GLOBAL_OFFSET_TABLE_[];                        \
  34                                                                 \
  35     asm (TLS_GD_OFFSET(x)                                       \
  36          "jal tls_gd_call(" #x ")\n\t"                          \
  37          "addi %0, r0, tls_gd_add(" #x ")" :                    \
  38          "=&r" (__retval) : "r" (_GLOBAL_OFFSET_TABLE_) :       \
  39          "r0", "r25", "r26", "r27", "r28", "r29");              \
  40     __retval; })
  41
  42 /* No special support for LD mode. */
  43 #define TLS_LD TLS_GD
  44
  45 #ifdef __tilegx__
  46 #define TLS_IE_OFFSET(x)                        \
  47   "moveli %0, hw1_last_tls_ie(" #x ")\n\t"      \
  48   "shl16insli %0, %0, hw0_tls_ie(" #x ")\n\t"   \
  49   "addi %0, %1, tls_add(" #x ")\n\t"
  50 #define LD_TLS "ld_tls"
  51 #else
  52 #define TLS_IE_OFFSET(x)                        \
  53   "auli %0, %1, tls_ie_ha16(" #x ")\n\t"        \
  54   "addli %0, %0, tls_ie_lo16(" #x ")\n\t"
  55 #define LD_TLS "lw_tls"
  56 #endif
  57
  58 #define TLS_IE(x)                                               \
  59   ({                                                            \
  60     int *__retval;                                              \
  61     extern char _GLOBAL_OFFSET_TABLE_[];                        \
  62                                                                 \
  63     asm (TLS_IE_OFFSET(x)                                       \
  64          LD_TLS " %0, %0, tls_ie_load(" #x ")\n\t"              \
  65          "add %0, %0, tp" :                                     \
  66          "=&r" (__retval) : "r" (_GLOBAL_OFFSET_TABLE_));       \
  67     __retval; })
  68
  69 #ifdef __tilegx__
  70 #define _TLS_LE(x)                              \
  71   "moveli %0, hw1_last_tls_le(" #x ")\n\t"      \
  72   "shl16insli %0, %0, hw0_tls_le(" #x ")\n\t"   \
  73   "add %0, %0, tp"
  74 #else
  75 #define _TLS_LE(x)                              \
  76   "auli %0, tp, tls_le_ha16(" #x ")\n\t"        \
  77   "addli %0, %0, tls_le_lo16(" #x ")\n\t"
  78 #endif
  79
  80 #define TLS_LE(x)                               \
  81   ({                                            \
  82     int *__retval;                              \
  83     asm (_TLS_LE(x) : "=r" (__retval));         \
  84     __retval; })