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1 /* brigspec.c -- Specific flags and argument handling of the gcc BRIG front end.
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2 Copyright (C) 2016-2018 Free Software Foundation, Inc.
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3 Contributed by Pekka Jaaskelainen <pekka.jaaskelainen@parmance.com>
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4 for General Processor Tech.
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5
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6 This file is part of GCC.
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7
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8 GCC is free software; you can redistribute it and/or modify it under
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9 the terms of the GNU General Public License as published by the Free
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10 Software Foundation; either version 3, or (at your option) any later
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11 version.
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12
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13 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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14 WARRANTY; without even the implied warranty of MERCHANTABILITY or
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15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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16 for more details.
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17
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18 You should have received a copy of the GNU General Public License
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19 along with GCC; see the file COPYING3. If not see
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20 <http://www.gnu.org/licenses/>. */
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21
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22 #include "config.h"
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23 #include "system.h"
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24 #include "coretypes.h"
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25 #include "tm.h"
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26 #include "opt-suggestions.h"
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27 #include "gcc.h"
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28 #include "opts.h"
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29
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30 /* This bit is set if we saw a `-xfoo' language specification. */
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31 #define LANGSPEC (1 << 1)
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32 /* This bit is set if they did `-lm' or `-lmath'. */
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33 #define MATHLIB (1 << 2)
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34 /* This bit is set if they did `-lpthread'. */
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35 #define THREADLIB (1 << 3)
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36 /* This bit is set if they did `-lc'. */
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37 #define WITHLIBC (1 << 4)
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38 /* Skip this option. */
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39 #define SKIPOPT (1 << 5)
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40
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41 #ifndef MATH_LIBRARY
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42 #define MATH_LIBRARY "m"
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43 #endif
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44 #ifndef MATH_LIBRARY_PROFILE
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45 #define MATH_LIBRARY_PROFILE MATH_LIBRARY
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46 #endif
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47
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48 #define LIBHSAIL "hsail-rt"
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49
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50 void
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51 lang_specific_driver (struct cl_decoded_option **in_decoded_options,
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52 unsigned int *in_decoded_options_count,
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53 int *in_added_libraries)
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54 {
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55 unsigned int i, j;
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56
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57 /* The new argument list will be contained in this. */
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58 struct cl_decoded_option *new_decoded_options;
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59
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60 /* An array used to flag each argument that needs a bit set for
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61 LANGSPEC, MATHLIB, or WITHLIBC. */
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62 int *args;
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63
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64 /* By default, we throw on the math library if we have one. */
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65 int need_math = (MATH_LIBRARY[0] != '\0');
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66
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67 /* True if we should add -shared-libgcc to the command-line. */
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68 int shared_libgcc = 1;
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69
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70 /* The total number of arguments with the new stuff. */
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71 unsigned int argc;
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72
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73 /* The argument list. */
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74 struct cl_decoded_option *decoded_options;
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75
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76 /* The number of libraries added in. */
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77 int added_libraries;
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78
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79 /* The total number of arguments with the new stuff. */
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80 int num_args = 1;
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81
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82 argc = *in_decoded_options_count;
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83 decoded_options = *in_decoded_options;
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84 added_libraries = *in_added_libraries;
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85
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86 args = XCNEWVEC (int, argc);
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87
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88 for (i = 1; i < argc; i++)
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89 {
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90 switch (decoded_options[i].opt_index)
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91 {
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92 case OPT_o:
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93 break;
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94
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95 case OPT_SPECIAL_input_file:
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96 break;
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97 }
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98 }
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99
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100 /* Make sure to have room for the trailing NULL argument. */
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101 num_args = argc + need_math + shared_libgcc + 10;
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102 new_decoded_options = XNEWVEC (struct cl_decoded_option, num_args);
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103
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104 i = 0;
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105 j = 0;
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106
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107 /* Copy the 0th argument, i.e., the name of the program itself. */
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108 new_decoded_options[j++] = decoded_options[i++];
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109
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110 /* NOTE: We start at 1 now, not 0. */
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111 while (i < argc)
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112 {
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113 new_decoded_options[j] = decoded_options[i];
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114
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115 if ((args[i] & SKIPOPT) != 0)
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116 --j;
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117
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118 i++;
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119 j++;
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120 }
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121
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122 generate_option (OPT_l, LIBHSAIL, 1, CL_DRIVER, &new_decoded_options[j]);
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123 j++;
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124
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125 *in_decoded_options_count = j;
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126 *in_decoded_options = new_decoded_options;
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127 *in_added_libraries = added_libraries;
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128 }
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129
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130 /* Called before linking. Returns 0 on success and -1 on failure. */
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131
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132 int lang_specific_pre_link (void) /* Not used for Brig. */ { return 0; }
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133
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134 /* Number of extra output files that lang_specific_pre_link may generate. */
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135
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136 int lang_specific_extra_outfiles = 0; /* Not used for Brig. */
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