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  1. /* Specialized bits of code needed for the offloading tables.
  2.    Copyright (C) 2014-2015 Free Software Foundation, Inc.
  3.  
  4. This file is part of GCC.
  5.  
  6. GCC is free software; you can redistribute it and/or modify it under
  7. the terms of the GNU General Public License as published by the Free
  8. Software Foundation; either version 3, or (at your option) any later
  9. version.
  10.  
  11. GCC is distributed in the hope that it will be useful, but WITHOUT ANY
  12. WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13. FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14. for more details.
  15.  
  16. Under Section 7 of GPL version 3, you are granted additional
  17. permissions described in the GCC Runtime Library Exception, version
  18. 3.1, as published by the Free Software Foundation.
  19.  
  20. You should have received a copy of the GNU General Public License and
  21. a copy of the GCC Runtime Library Exception along with this program;
  22. see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
  23. <http://www.gnu.org/licenses/>.  */
  24.  
  25. /* Target machine header files require this define. */
  26. #define IN_LIBGCC2
  27.  
  28. /* FIXME: Including auto-host is incorrect, but until we have
  29.    identified the set of defines that need to go into auto-target.h,
  30.    this will have to do.  */
  31. #include "auto-host.h"
  32. #undef caddr_t
  33. #undef pid_t
  34. #undef rlim_t
  35. #undef ssize_t
  36. #undef vfork
  37. #include "tconfig.h"
  38. #include "tsystem.h"
  39. #include "coretypes.h"
  40. #include "tm.h"
  41. #include "libgcc_tm.h"
  42.  
  43. #define OFFLOAD_FUNC_TABLE_SECTION_NAME ".gnu.offload_funcs"
  44. #define OFFLOAD_VAR_TABLE_SECTION_NAME ".gnu.offload_vars"
  45.  
  46. #ifdef CRT_BEGIN
  47.  
  48. #if defined(HAVE_GAS_HIDDEN) && defined(ENABLE_OFFLOADING)
  49. void *__offload_func_table[0]
  50.   __attribute__ ((__used__, visibility ("hidden"),
  51.                   section (OFFLOAD_FUNC_TABLE_SECTION_NAME))) = { };
  52. void *__offload_var_table[0]
  53.   __attribute__ ((__used__, visibility ("hidden"),
  54.                   section (OFFLOAD_VAR_TABLE_SECTION_NAME))) = { };
  55. #endif
  56.  
  57. #elif defined CRT_END
  58.  
  59. #if defined(HAVE_GAS_HIDDEN) && defined(ENABLE_OFFLOADING)
  60. void *__offload_funcs_end[0]
  61.   __attribute__ ((__used__, visibility ("hidden"),
  62.                   section (OFFLOAD_FUNC_TABLE_SECTION_NAME))) = { };
  63. void *__offload_vars_end[0]
  64.   __attribute__ ((__used__, visibility ("hidden"),
  65.                   section (OFFLOAD_VAR_TABLE_SECTION_NAME))) = { };
  66.  
  67. extern void *__offload_func_table[];
  68. extern void *__offload_var_table[];
  69.  
  70. void *__OFFLOAD_TABLE__[]
  71.   __attribute__ ((__visibility__ ("hidden"))) =
  72. {
  73.   &__offload_func_table, &__offload_funcs_end,
  74.   &__offload_var_table, &__offload_vars_end
  75. };
  76. #endif
  77.  
  78. #else /* ! CRT_BEGIN && ! CRT_END */
  79. #error "One of CRT_BEGIN or CRT_END must be defined."
  80. #endif
  81.