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1 /* Specialized bits of code needed for the offloading tables.
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2 Copyright (C) 2014-2020 Free Software Foundation, Inc.
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3
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4 This file is part of GCC.
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5
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6 GCC is free software; you can redistribute it and/or modify it under
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7 the terms of the GNU General Public License as published by the Free
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8 Software Foundation; either version 3, or (at your option) any later
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9 version.
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10
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11 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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12 WARRANTY; without even the implied warranty of MERCHANTABILITY or
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13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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14 for more details.
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15
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16 Under Section 7 of GPL version 3, you are granted additional
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17 permissions described in the GCC Runtime Library Exception, version
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18 3.1, as published by the Free Software Foundation.
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19
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20 You should have received a copy of the GNU General Public License and
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21 a copy of the GCC Runtime Library Exception along with this program;
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22 see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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23 <http://www.gnu.org/licenses/>. */
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24
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25 /* Target machine header files require this define. */
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26 #define IN_LIBGCC2
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27
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28 /* FIXME: Including auto-host is incorrect, but until we have
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29 identified the set of defines that need to go into auto-target.h,
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30 this will have to do. */
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31 #include "auto-host.h"
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32 #undef caddr_t
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33 #undef pid_t
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34 #undef rlim_t
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35 #undef ssize_t
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36 #undef vfork
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37 #include "tconfig.h"
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38 #include "tsystem.h"
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39 #include "coretypes.h"
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40 #include "tm.h"
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41 #include "libgcc_tm.h"
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42
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43 #if defined(HAVE_GAS_HIDDEN) && ENABLE_OFFLOADING == 1
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44
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45 #define OFFLOAD_FUNC_TABLE_SECTION_NAME ".gnu.offload_funcs"
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46 #define OFFLOAD_VAR_TABLE_SECTION_NAME ".gnu.offload_vars"
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47
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48 #ifdef CRT_BEGIN
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49
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50 const void *const __offload_func_table[0]
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51 __attribute__ ((__used__, visibility ("hidden"),
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52 section (OFFLOAD_FUNC_TABLE_SECTION_NAME))) = { };
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53 const void *const __offload_var_table[0]
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54 __attribute__ ((__used__, visibility ("hidden"),
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55 section (OFFLOAD_VAR_TABLE_SECTION_NAME))) = { };
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56
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57 #elif defined CRT_END
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58
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59 const void *const __offload_funcs_end[0]
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60 __attribute__ ((__used__, visibility ("hidden"),
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61 section (OFFLOAD_FUNC_TABLE_SECTION_NAME))) = { };
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62 const void *const __offload_vars_end[0]
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63 __attribute__ ((__used__, visibility ("hidden"),
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64 section (OFFLOAD_VAR_TABLE_SECTION_NAME))) = { };
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65
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66 #elif defined CRT_TABLE
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67
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68 extern const void *const __offload_func_table[];
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69 extern const void *const __offload_var_table[];
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70 extern const void *const __offload_funcs_end[];
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71 extern const void *const __offload_vars_end[];
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72
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73 const void *const __OFFLOAD_TABLE__[]
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74 __attribute__ ((__visibility__ ("hidden"))) =
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75 {
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76 &__offload_func_table, &__offload_funcs_end,
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77 &__offload_var_table, &__offload_vars_end
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78 };
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79
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80 #else /* ! CRT_BEGIN && ! CRT_END && ! CRT_TABLE */
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81 #error "One of CRT_BEGIN, CRT_END or CRT_TABLE must be defined."
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82 #endif
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83
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84 #endif
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