1/* Specialized bits of code needed for the offloading tables.
2   Copyright (C) 2014-2020 Free Software Foundation, Inc.
3
4This file is part of GCC.
5
6GCC is free software; you can redistribute it and/or modify it under
7the terms of the GNU General Public License as published by the Free
8Software Foundation; either version 3, or (at your option) any later
9version.
10
11GCC is distributed in the hope that it will be useful, but WITHOUT ANY
12WARRANTY; without even the implied warranty of MERCHANTABILITY or
13FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14for more details.
15
16Under Section 7 of GPL version 3, you are granted additional
17permissions described in the GCC Runtime Library Exception, version
183.1, as published by the Free Software Foundation.
19
20You should have received a copy of the GNU General Public License and
21a copy of the GCC Runtime Library Exception along with this program;
22see 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#if defined(HAVE_GAS_HIDDEN) && ENABLE_OFFLOADING == 1
44
45#define OFFLOAD_FUNC_TABLE_SECTION_NAME ".gnu.offload_funcs"
46#define OFFLOAD_VAR_TABLE_SECTION_NAME ".gnu.offload_vars"
47
48#ifdef CRT_BEGIN
49
50const void *const __offload_func_table[0]
51  __attribute__ ((__used__, visibility ("hidden"),
52		  section (OFFLOAD_FUNC_TABLE_SECTION_NAME))) = { };
53const void *const __offload_var_table[0]
54  __attribute__ ((__used__, visibility ("hidden"),
55		  section (OFFLOAD_VAR_TABLE_SECTION_NAME))) = { };
56
57#elif defined CRT_END
58
59const void *const __offload_funcs_end[0]
60  __attribute__ ((__used__, visibility ("hidden"),
61		  section (OFFLOAD_FUNC_TABLE_SECTION_NAME))) = { };
62const void *const __offload_vars_end[0]
63  __attribute__ ((__used__, visibility ("hidden"),
64		  section (OFFLOAD_VAR_TABLE_SECTION_NAME))) = { };
65
66#elif defined CRT_TABLE
67
68extern const void *const __offload_func_table[];
69extern const void *const __offload_var_table[];
70extern const void *const __offload_funcs_end[];
71extern const void *const __offload_vars_end[];
72
73const void *const __OFFLOAD_TABLE__[]
74  __attribute__ ((__visibility__ ("hidden"))) =
75{
76  &__offload_func_table, &__offload_funcs_end,
77  &__offload_var_table, &__offload_vars_end
78};
79
80#else /* ! CRT_BEGIN && ! CRT_END && ! CRT_TABLE  */
81#error "One of CRT_BEGIN, CRT_END or CRT_TABLE must be defined."
82#endif
83
84#endif
85