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1 /* Copyright (C) 2002-2018 Free Software Foundation, Inc.
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2 Contributed by Andy Vaught and Paul Brook <paul@nowt.org>
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3
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4 This file is part of the GNU Fortran runtime library (libgfortran).
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5
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6 Libgfortran is free software; you can redistribute it and/or modify
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7 it under the terms of the GNU General Public License as published by
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8 the Free Software Foundation; either version 3, or (at your option)
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9 any later version.
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10
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11 Libgfortran is distributed in the hope that it will be useful,
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12 but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 GNU General Public License 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 #include "libgfortran.h"
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26
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27
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28 /* Stupid function to be sure the constructor is always linked in, even
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29 in the case of static linking. See PR libfortran/22298 for details. */
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30 void
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31 stupid_function_name_for_static_linking (void)
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32 {
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33 return;
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34 }
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35
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36
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37 static int argc_save;
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38 static char **argv_save;
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39
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40
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41 /* Set the saved values of the command line arguments. */
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42
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43 void
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44 set_args (int argc, char **argv)
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45 {
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46 argc_save = argc;
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47 argv_save = argv;
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48 }
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49 iexport(set_args);
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50
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51
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52 /* Retrieve the saved values of the command line arguments. */
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53
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54 void
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55 get_args (int *argc, char ***argv)
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56 {
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57 *argc = argc_save;
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58 *argv = argv_save;
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59 }
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60
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61
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62 /* Initialize the runtime library. */
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63
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64 static void __attribute__((constructor))
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65 init (void)
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66 {
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67 /* Must be first */
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68 init_variables ();
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69
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70 init_units ();
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71
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72 /* If (and only if) the user asked for it, set up the FPU state. */
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73 if (options.fpe != 0)
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74 set_fpu ();
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75
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76 init_compile_options ();
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77 }
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78
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79
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80 /* Cleanup the runtime library. */
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81
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82 static void __attribute__((destructor))
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83 cleanup (void)
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84 {
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85 close_units ();
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86 }
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