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111
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1 /* Parse and display command line options.
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131
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2 Copyright (C) 2000-2018 Free Software Foundation, Inc.
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111
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3 Contributed by Andy Vaught
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4
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5 This file is part of GCC.
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6
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7 GCC is free software; you can redistribute it and/or modify it under
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8 the terms of the GNU General Public License as published by the Free
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9 Software Foundation; either version 3, or (at your option) any later
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10 version.
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11
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12 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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13 WARRANTY; without even the implied warranty of MERCHANTABILITY or
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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15 for more details.
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16
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17 You should have received a copy of the GNU General Public License
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18 along with GCC; see the file COPYING3. If not see
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19 <http://www.gnu.org/licenses/>. */
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20
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21 #include "config.h"
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22 #include "system.h"
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23 #include "coretypes.h"
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24 #include "target.h"
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25 #include "tree.h"
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26 #include "gfortran.h"
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27 #include "diagnostic.h" /* For global_dc. */
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28 #include "opts.h"
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29 #include "toplev.h" /* For save_decoded_options. */
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30 #include "cpp.h"
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31 #include "langhooks.h"
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32
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33 gfc_option_t gfc_option;
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34
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35
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36 /* Set flags that control warnings and errors for different
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37 Fortran standards to their default values. Keep in sync with
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38 libgfortran/runtime/compile_options.c (init_compile_options). */
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39
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40 static void
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41 set_default_std_flags (void)
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42 {
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43 gfc_option.allow_std = GFC_STD_F95_OBS | GFC_STD_F95_DEL
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44 | GFC_STD_F2003 | GFC_STD_F2008 | GFC_STD_F95 | GFC_STD_F77
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131
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45 | GFC_STD_F2008_OBS | GFC_STD_GNU | GFC_STD_LEGACY
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46 | GFC_STD_F2018 | GFC_STD_F2018_DEL | GFC_STD_F2018_OBS;
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47 gfc_option.warn_std = GFC_STD_F2018_DEL | GFC_STD_F95_DEL | GFC_STD_LEGACY;
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111
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48 }
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49
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50
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51 /* Set all the DEC extension flags. */
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52
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53 static void
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54 set_dec_flags (int value)
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55 {
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56 if (value)
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57 {
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58 /* Allow legacy code without warnings. */
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59 gfc_option.allow_std |= GFC_STD_F95_OBS | GFC_STD_F95_DEL
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60 | GFC_STD_GNU | GFC_STD_LEGACY;
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61 gfc_option.warn_std &= ~(GFC_STD_LEGACY | GFC_STD_F95_DEL);
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62 }
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63
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64 /* Set other DEC compatibility extensions. */
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65 flag_dollar_ok |= value;
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66 flag_cray_pointer |= value;
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67 flag_dec_structure |= value;
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68 flag_dec_intrinsic_ints |= value;
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69 flag_dec_static |= value;
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70 flag_dec_math |= value;
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71 }
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72
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73
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74 /* Return language mask for Fortran options. */
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75
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76 unsigned int
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77 gfc_option_lang_mask (void)
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78 {
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79 return CL_Fortran;
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80 }
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81
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82 /* Initialize options structure OPTS. */
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83
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84 void
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85 gfc_init_options_struct (struct gcc_options *opts)
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86 {
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87 opts->x_flag_errno_math = 0;
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88 opts->frontend_set_flag_errno_math = true;
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89 opts->x_flag_associative_math = -1;
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90 opts->frontend_set_flag_associative_math = true;
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91 }
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92
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93 /* Get ready for options handling. Keep in sync with
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94 libgfortran/runtime/compile_options.c (init_compile_options). */
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95
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96 void
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97 gfc_init_options (unsigned int decoded_options_count,
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98 struct cl_decoded_option *decoded_options)
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99 {
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100 gfc_source_file = NULL;
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101 gfc_option.module_dir = NULL;
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102 gfc_option.source_form = FORM_UNKNOWN;
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103 gfc_option.max_continue_fixed = 255;
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104 gfc_option.max_continue_free = 255;
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105 gfc_option.max_identifier_length = GFC_MAX_SYMBOL_LEN;
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106 gfc_option.max_errors = 25;
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107
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108 gfc_option.flag_preprocessed = 0;
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109 gfc_option.flag_d_lines = -1;
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110 gfc_option.flag_init_integer = GFC_INIT_INTEGER_OFF;
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111 gfc_option.flag_init_integer_value = 0;
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112 gfc_option.flag_init_logical = GFC_INIT_LOGICAL_OFF;
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113 gfc_option.flag_init_character = GFC_INIT_CHARACTER_OFF;
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114 gfc_option.flag_init_character_value = (char)0;
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115
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116 gfc_option.fpe = 0;
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117 /* All except GFC_FPE_INEXACT. */
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118 gfc_option.fpe_summary = GFC_FPE_INVALID | GFC_FPE_DENORMAL
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119 | GFC_FPE_ZERO | GFC_FPE_OVERFLOW
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120 | GFC_FPE_UNDERFLOW;
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121 gfc_option.rtcheck = 0;
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122
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123 /* ??? Wmissing-include-dirs is disabled by default in C/C++ but
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124 enabled by default in Fortran. Ideally, we should express this
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125 in .opt, but that is not supported yet. */
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126 if (!global_options_set.x_cpp_warn_missing_include_dirs)
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127 global_options.x_cpp_warn_missing_include_dirs = 1;
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128
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129 set_dec_flags (0);
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130
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131 set_default_std_flags ();
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132
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133 /* Initialize cpp-related options. */
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134 gfc_cpp_init_options (decoded_options_count, decoded_options);
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135 gfc_diagnostics_init ();
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136 }
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137
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138
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139 /* Determine the source form from the filename extension. We assume
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140 case insensitivity. */
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141
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142 static gfc_source_form
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143 form_from_filename (const char *filename)
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144 {
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145 static const struct
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146 {
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147 const char *extension;
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148 gfc_source_form form;
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149 }
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150 exttype[] =
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151 {
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152 {
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153 ".f90", FORM_FREE}
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154 ,
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155 {
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156 ".f95", FORM_FREE}
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157 ,
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158 {
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159 ".f03", FORM_FREE}
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160 ,
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161 {
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162 ".f08", FORM_FREE}
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163 ,
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164 {
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165 ".f", FORM_FIXED}
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166 ,
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167 {
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168 ".for", FORM_FIXED}
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169 ,
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170 {
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171 ".ftn", FORM_FIXED}
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172 ,
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173 {
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174 "", FORM_UNKNOWN}
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175 }; /* sentinel value */
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176
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177 gfc_source_form f_form;
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178 const char *fileext;
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179 int i;
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180
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181 /* Find end of file name. Note, filename is either a NULL pointer or
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182 a NUL terminated string. */
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183 i = 0;
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184 while (filename[i] != '\0')
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185 i++;
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186
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187 /* Find last period. */
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188 while (i >= 0 && (filename[i] != '.'))
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189 i--;
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190
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191 /* Did we see a file extension? */
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192 if (i < 0)
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193 return FORM_UNKNOWN; /* Nope */
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194
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195 /* Get file extension and compare it to others. */
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196 fileext = &(filename[i]);
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197
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198 i = -1;
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199 f_form = FORM_UNKNOWN;
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200 do
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201 {
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202 i++;
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203 if (strcasecmp (fileext, exttype[i].extension) == 0)
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204 {
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205 f_form = exttype[i].form;
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206 break;
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207 }
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208 }
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209 while (exttype[i].form != FORM_UNKNOWN);
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210
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211 return f_form;
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212 }
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213
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214
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215 /* Finalize commandline options. */
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216
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217 bool
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218 gfc_post_options (const char **pfilename)
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219 {
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220 const char *filename = *pfilename, *canon_source_file = NULL;
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221 char *source_path;
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222 int i;
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223
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224 /* Excess precision other than "fast" requires front-end
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225 support. */
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226 if (flag_excess_precision_cmdline == EXCESS_PRECISION_STANDARD)
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227 sorry ("-fexcess-precision=standard for Fortran");
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228 flag_excess_precision_cmdline = EXCESS_PRECISION_FAST;
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229
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230 /* Fortran allows associative math - but we cannot reassociate if
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231 we want traps or signed zeros. Cf. also flag_protect_parens. */
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232 if (flag_associative_math == -1)
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233 flag_associative_math = (!flag_trapping_math && !flag_signed_zeros);
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234
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235 if (flag_protect_parens == -1)
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236 flag_protect_parens = !optimize_fast;
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237
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238 /* -Ofast sets implies -fstack-arrays unless an explicit size is set for
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239 stack arrays. */
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240 if (flag_stack_arrays == -1 && flag_max_stack_var_size == -2)
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241 flag_stack_arrays = optimize_fast;
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242
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243 /* By default, disable (re)allocation during assignment for -std=f95,
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244 and enable it for F2003/F2008/GNU/Legacy. */
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245 if (flag_realloc_lhs == -1)
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246 {
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247 if (gfc_option.allow_std & GFC_STD_F2003)
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248 flag_realloc_lhs = 1;
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249 else
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250 flag_realloc_lhs = 0;
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251 }
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252
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253 /* -fbounds-check is equivalent to -fcheck=bounds */
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254 if (flag_bounds_check)
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255 gfc_option.rtcheck |= GFC_RTCHECK_BOUNDS;
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256
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257 if (flag_compare_debug)
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258 flag_dump_fortran_original = 0;
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259
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260 /* Make -fmax-errors visible to gfortran's diagnostic machinery. */
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261 if (global_options_set.x_flag_max_errors)
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262 gfc_option.max_errors = flag_max_errors;
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263
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264 /* Verify the input file name. */
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265 if (!filename || strcmp (filename, "-") == 0)
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266 {
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267 filename = "";
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268 }
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269
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270 if (gfc_option.flag_preprocessed)
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271 {
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272 /* For preprocessed files, if the first tokens are of the form # NUM.
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273 handle the directives so we know the original file name. */
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274 gfc_source_file = gfc_read_orig_filename (filename, &canon_source_file);
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275 if (gfc_source_file == NULL)
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276 gfc_source_file = filename;
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277 else
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278 *pfilename = gfc_source_file;
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279 }
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280 else
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281 gfc_source_file = filename;
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282
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283 if (canon_source_file == NULL)
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284 canon_source_file = gfc_source_file;
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285
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286 /* Adds the path where the source file is to the list of include files. */
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287
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288 i = strlen (canon_source_file);
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289 while (i > 0 && !IS_DIR_SEPARATOR (canon_source_file[i]))
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290 i--;
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291
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292 if (i != 0)
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293 {
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294 source_path = (char *) alloca (i + 1);
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295 memcpy (source_path, canon_source_file, i);
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296 source_path[i] = 0;
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297 gfc_add_include_path (source_path, true, true, true);
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298 }
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299 else
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300 gfc_add_include_path (".", true, true, true);
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301
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302 if (canon_source_file != gfc_source_file)
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303 free (CONST_CAST (char *, canon_source_file));
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304
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305 /* Decide which form the file will be read in as. */
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306
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307 if (gfc_option.source_form != FORM_UNKNOWN)
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308 gfc_current_form = gfc_option.source_form;
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309 else
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310 {
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311 gfc_current_form = form_from_filename (filename);
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312
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313 if (gfc_current_form == FORM_UNKNOWN)
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314 {
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315 gfc_current_form = FORM_FREE;
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131
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316 main_input_filename = filename;
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111
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317 gfc_warning_now (0, "Reading file %qs as free form",
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318 (filename[0] == '\0') ? "<stdin>" : filename);
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319 }
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320 }
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321
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322 /* If the user specified -fd-lines-as-{code|comments} verify that we're
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323 in fixed form. */
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324 if (gfc_current_form == FORM_FREE)
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325 {
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326 if (gfc_option.flag_d_lines == 0)
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327 gfc_warning_now (0, "%<-fd-lines-as-comments%> has no effect "
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328 "in free form");
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329 else if (gfc_option.flag_d_lines == 1)
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330 gfc_warning_now (0, "%<-fd-lines-as-code%> has no effect in free form");
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331
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332 if (warn_line_truncation == -1)
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333 warn_line_truncation = 1;
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334
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335 /* Enable -Werror=line-truncation when -Werror and -Wno-error have
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336 not been set. */
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337 if (warn_line_truncation && !global_options_set.x_warnings_are_errors
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338 && (global_dc->classify_diagnostic[OPT_Wline_truncation] ==
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339 DK_UNSPECIFIED))
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340 diagnostic_classify_diagnostic (global_dc, OPT_Wline_truncation,
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341 DK_ERROR, UNKNOWN_LOCATION);
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342 }
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343 else
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344 {
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345 /* With -fdec, set -fd-lines-as-comments by default in fixed form. */
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346 if (flag_dec && gfc_option.flag_d_lines == -1)
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347 gfc_option.flag_d_lines = 0;
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348
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349 if (warn_line_truncation == -1)
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350 warn_line_truncation = 0;
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351 }
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352
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353 /* If -pedantic, warn about the use of GNU extensions. */
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354 if (pedantic && (gfc_option.allow_std & GFC_STD_GNU) != 0)
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355 gfc_option.warn_std |= GFC_STD_GNU;
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356 /* -std=legacy -pedantic is effectively -std=gnu. */
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357 if (pedantic && (gfc_option.allow_std & GFC_STD_LEGACY) != 0)
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358 gfc_option.warn_std |= GFC_STD_F95_OBS | GFC_STD_F95_DEL | GFC_STD_LEGACY;
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359
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360 /* If the user didn't explicitly specify -f(no)-second-underscore we
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361 use it if we're trying to be compatible with f2c, and not
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362 otherwise. */
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363 if (flag_second_underscore == -1)
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364 flag_second_underscore = flag_f2c;
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365
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366 if (!flag_automatic && flag_max_stack_var_size != -2
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367 && flag_max_stack_var_size != 0)
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368 gfc_warning_now (0, "Flag %<-fno-automatic%> overwrites %<-fmax-stack-var-size=%d%>",
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369 flag_max_stack_var_size);
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370 else if (!flag_automatic && flag_recursive)
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371 gfc_warning_now (0, "Flag %<-fno-automatic%> overwrites %<-frecursive%>");
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372 else if (!flag_automatic && flag_openmp)
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373 gfc_warning_now (0, "Flag %<-fno-automatic%> overwrites %<-frecursive%> implied by "
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374 "%<-fopenmp%>");
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375 else if (flag_max_stack_var_size != -2 && flag_recursive)
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376 gfc_warning_now (0, "Flag %<-frecursive%> overwrites %<-fmax-stack-var-size=%d%>",
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377 flag_max_stack_var_size);
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378 else if (flag_max_stack_var_size != -2 && flag_openmp)
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379 gfc_warning_now (0, "Flag %<-fmax-stack-var-size=%d%> overwrites %<-frecursive%> "
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380 "implied by %<-fopenmp%>", flag_max_stack_var_size);
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381
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382 /* Implement -frecursive as -fmax-stack-var-size=-1. */
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383 if (flag_recursive)
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384 flag_max_stack_var_size = -1;
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385
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386 /* Implied -frecursive; implemented as -fmax-stack-var-size=-1. */
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387 if (flag_max_stack_var_size == -2 && flag_openmp && flag_automatic)
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388 {
|
|
|
389 flag_recursive = 1;
|
|
|
390 flag_max_stack_var_size = -1;
|
|
|
391 }
|
|
|
392
|
|
|
393 /* Set flag_stack_arrays correctly. */
|
|
|
394 if (flag_stack_arrays == -1)
|
|
|
395 flag_stack_arrays = 0;
|
|
|
396
|
|
|
397 /* Set default. */
|
|
|
398 if (flag_max_stack_var_size == -2)
|
|
|
399 flag_max_stack_var_size = 32768;
|
|
|
400
|
|
|
401 /* Implement -fno-automatic as -fmax-stack-var-size=0. */
|
|
|
402 if (!flag_automatic)
|
|
|
403 flag_max_stack_var_size = 0;
|
|
|
404
|
|
|
405 /* If the user did not specify an inline matmul limit, inline up to the BLAS
|
|
|
406 limit or up to 30 if no external BLAS is specified. */
|
|
|
407
|
|
|
408 if (flag_inline_matmul_limit < 0)
|
|
|
409 {
|
|
|
410 if (flag_external_blas)
|
|
|
411 flag_inline_matmul_limit = flag_blas_matmul_limit;
|
|
|
412 else
|
|
|
413 flag_inline_matmul_limit = 30;
|
|
|
414 }
|
|
|
415
|
|
|
416 /* Optimization implies front end optimization, unless the user
|
|
|
417 specified it directly. */
|
|
|
418
|
|
|
419 if (flag_frontend_optimize == -1)
|
|
131
|
420 flag_frontend_optimize = optimize && !optimize_debug;
|
|
|
421
|
|
|
422 /* Same for front end loop interchange. */
|
|
|
423
|
|
|
424 if (flag_frontend_loop_interchange == -1)
|
|
|
425 flag_frontend_loop_interchange = optimize;
|
|
111
|
426
|
|
|
427 if (flag_max_array_constructor < 65535)
|
|
|
428 flag_max_array_constructor = 65535;
|
|
|
429
|
|
|
430 if (flag_fixed_line_length != 0 && flag_fixed_line_length < 7)
|
|
|
431 gfc_fatal_error ("Fixed line length must be at least seven");
|
|
|
432
|
|
|
433 if (flag_free_line_length != 0 && flag_free_line_length < 4)
|
|
|
434 gfc_fatal_error ("Free line length must be at least three");
|
|
|
435
|
|
|
436 if (flag_max_subrecord_length > MAX_SUBRECORD_LENGTH)
|
|
|
437 gfc_fatal_error ("Maximum subrecord length cannot exceed %d",
|
|
|
438 MAX_SUBRECORD_LENGTH);
|
|
|
439
|
|
|
440 gfc_cpp_post_options ();
|
|
|
441
|
|
|
442 if (gfc_option.allow_std & GFC_STD_F2008)
|
|
|
443 lang_hooks.name = "GNU Fortran2008";
|
|
|
444 else if (gfc_option.allow_std & GFC_STD_F2003)
|
|
|
445 lang_hooks.name = "GNU Fortran2003";
|
|
|
446
|
|
|
447 return gfc_cpp_preprocess_only ();
|
|
|
448 }
|
|
|
449
|
|
|
450
|
|
|
451 static void
|
|
|
452 gfc_handle_module_path_options (const char *arg)
|
|
|
453 {
|
|
|
454
|
|
|
455 if (gfc_option.module_dir != NULL)
|
|
|
456 gfc_fatal_error ("gfortran: Only one %<-J%> option allowed");
|
|
|
457
|
|
|
458 gfc_option.module_dir = XCNEWVEC (char, strlen (arg) + 2);
|
|
|
459 strcpy (gfc_option.module_dir, arg);
|
|
|
460
|
|
|
461 gfc_add_include_path (gfc_option.module_dir, true, false, true);
|
|
|
462
|
|
|
463 strcat (gfc_option.module_dir, "/");
|
|
|
464 }
|
|
|
465
|
|
|
466
|
|
|
467 /* Handle options -ffpe-trap= and -ffpe-summary=. */
|
|
|
468
|
|
|
469 static void
|
|
|
470 gfc_handle_fpe_option (const char *arg, bool trap)
|
|
|
471 {
|
|
|
472 int result, pos = 0, n;
|
|
|
473 /* precision is a backwards compatibility alias for inexact. */
|
|
|
474 static const char * const exception[] = { "invalid", "denormal", "zero",
|
|
|
475 "overflow", "underflow",
|
|
|
476 "inexact", "precision", NULL };
|
|
|
477 static const int opt_exception[] = { GFC_FPE_INVALID, GFC_FPE_DENORMAL,
|
|
|
478 GFC_FPE_ZERO, GFC_FPE_OVERFLOW,
|
|
|
479 GFC_FPE_UNDERFLOW, GFC_FPE_INEXACT,
|
|
|
480 GFC_FPE_INEXACT,
|
|
|
481 0 };
|
|
|
482
|
|
|
483 /* As the default for -ffpe-summary= is nonzero, set it to 0. */
|
|
|
484 if (!trap)
|
|
|
485 gfc_option.fpe_summary = 0;
|
|
|
486
|
|
|
487 while (*arg)
|
|
|
488 {
|
|
|
489 while (*arg == ',')
|
|
|
490 arg++;
|
|
|
491
|
|
|
492 while (arg[pos] && arg[pos] != ',')
|
|
|
493 pos++;
|
|
|
494
|
|
|
495 result = 0;
|
|
|
496 if (!trap && strncmp ("none", arg, pos) == 0)
|
|
|
497 {
|
|
|
498 gfc_option.fpe_summary = 0;
|
|
|
499 arg += pos;
|
|
|
500 pos = 0;
|
|
|
501 continue;
|
|
|
502 }
|
|
|
503 else if (!trap && strncmp ("all", arg, pos) == 0)
|
|
|
504 {
|
|
|
505 gfc_option.fpe_summary = GFC_FPE_INVALID | GFC_FPE_DENORMAL
|
|
|
506 | GFC_FPE_ZERO | GFC_FPE_OVERFLOW
|
|
|
507 | GFC_FPE_UNDERFLOW | GFC_FPE_INEXACT;
|
|
|
508 arg += pos;
|
|
|
509 pos = 0;
|
|
|
510 continue;
|
|
|
511 }
|
|
|
512 else
|
|
|
513 for (n = 0; exception[n] != NULL; n++)
|
|
|
514 {
|
|
|
515 if (exception[n] && strncmp (exception[n], arg, pos) == 0)
|
|
|
516 {
|
|
|
517 if (trap)
|
|
|
518 gfc_option.fpe |= opt_exception[n];
|
|
|
519 else
|
|
|
520 gfc_option.fpe_summary |= opt_exception[n];
|
|
|
521 arg += pos;
|
|
|
522 pos = 0;
|
|
|
523 result = 1;
|
|
|
524 break;
|
|
|
525 }
|
|
|
526 }
|
|
|
527 if (!result && !trap)
|
|
|
528 gfc_fatal_error ("Argument to %<-ffpe-trap%> is not valid: %s", arg);
|
|
|
529 else if (!result)
|
|
|
530 gfc_fatal_error ("Argument to %<-ffpe-summary%> is not valid: %s", arg);
|
|
|
531
|
|
|
532 }
|
|
|
533 }
|
|
|
534
|
|
|
535
|
|
|
536 static void
|
|
|
537 gfc_handle_runtime_check_option (const char *arg)
|
|
|
538 {
|
|
|
539 int result, pos = 0, n;
|
|
|
540 static const char * const optname[] = { "all", "bounds", "array-temps",
|
|
|
541 "recursion", "do", "pointer",
|
|
|
542 "mem", NULL };
|
|
|
543 static const int optmask[] = { GFC_RTCHECK_ALL, GFC_RTCHECK_BOUNDS,
|
|
|
544 GFC_RTCHECK_ARRAY_TEMPS,
|
|
|
545 GFC_RTCHECK_RECURSION, GFC_RTCHECK_DO,
|
|
|
546 GFC_RTCHECK_POINTER, GFC_RTCHECK_MEM,
|
|
|
547 0 };
|
|
|
548
|
|
|
549 while (*arg)
|
|
|
550 {
|
|
|
551 while (*arg == ',')
|
|
|
552 arg++;
|
|
|
553
|
|
|
554 while (arg[pos] && arg[pos] != ',')
|
|
|
555 pos++;
|
|
|
556
|
|
|
557 result = 0;
|
|
|
558 for (n = 0; optname[n] != NULL; n++)
|
|
|
559 {
|
|
|
560 if (optname[n] && strncmp (optname[n], arg, pos) == 0)
|
|
|
561 {
|
|
|
562 gfc_option.rtcheck |= optmask[n];
|
|
|
563 arg += pos;
|
|
|
564 pos = 0;
|
|
|
565 result = 1;
|
|
|
566 break;
|
|
|
567 }
|
|
131
|
568 else if (optname[n] && pos > 3 && gfc_str_startswith (arg, "no-")
|
|
111
|
569 && strncmp (optname[n], arg+3, pos-3) == 0)
|
|
|
570 {
|
|
|
571 gfc_option.rtcheck &= ~optmask[n];
|
|
|
572 arg += pos;
|
|
|
573 pos = 0;
|
|
|
574 result = 1;
|
|
|
575 break;
|
|
|
576 }
|
|
|
577 }
|
|
|
578 if (!result)
|
|
|
579 gfc_fatal_error ("Argument to %<-fcheck%> is not valid: %s", arg);
|
|
|
580 }
|
|
|
581 }
|
|
|
582
|
|
|
583
|
|
|
584 /* Handle command-line options. Returns 0 if unrecognized, 1 if
|
|
|
585 recognized and handled. */
|
|
|
586
|
|
|
587 bool
|
|
131
|
588 gfc_handle_option (size_t scode, const char *arg, HOST_WIDE_INT value,
|
|
111
|
589 int kind ATTRIBUTE_UNUSED, location_t loc ATTRIBUTE_UNUSED,
|
|
|
590 const struct cl_option_handlers *handlers ATTRIBUTE_UNUSED)
|
|
|
591 {
|
|
|
592 bool result = true;
|
|
|
593 enum opt_code code = (enum opt_code) scode;
|
|
|
594
|
|
|
595 if (gfc_cpp_handle_option (scode, arg, value) == 1)
|
|
|
596 return true;
|
|
|
597
|
|
|
598 switch (code)
|
|
|
599 {
|
|
|
600 default:
|
|
|
601 if (cl_options[code].flags & gfc_option_lang_mask ())
|
|
|
602 break;
|
|
|
603 result = false;
|
|
|
604 break;
|
|
|
605
|
|
|
606 case OPT_fcheck_array_temporaries:
|
|
|
607 gfc_option.rtcheck |= GFC_RTCHECK_ARRAY_TEMPS;
|
|
|
608 break;
|
|
|
609
|
|
|
610 case OPT_fd_lines_as_code:
|
|
|
611 gfc_option.flag_d_lines = 1;
|
|
|
612 break;
|
|
|
613
|
|
|
614 case OPT_fd_lines_as_comments:
|
|
|
615 gfc_option.flag_d_lines = 0;
|
|
|
616 break;
|
|
|
617
|
|
|
618 case OPT_ffixed_form:
|
|
|
619 gfc_option.source_form = FORM_FIXED;
|
|
|
620 break;
|
|
|
621
|
|
|
622 case OPT_ffree_form:
|
|
|
623 gfc_option.source_form = FORM_FREE;
|
|
|
624 break;
|
|
|
625
|
|
|
626 case OPT_static_libgfortran:
|
|
|
627 #ifndef HAVE_LD_STATIC_DYNAMIC
|
|
|
628 gfc_fatal_error ("%<-static-libgfortran%> is not supported in this "
|
|
|
629 "configuration");
|
|
|
630 #endif
|
|
|
631 break;
|
|
|
632
|
|
|
633 case OPT_fintrinsic_modules_path:
|
|
|
634 case OPT_fintrinsic_modules_path_:
|
|
|
635
|
|
|
636 /* This is needed because omp_lib.h is in a directory together
|
|
|
637 with intrinsic modules. Do no warn because during testing
|
|
|
638 without an installed compiler, we would get lots of bogus
|
|
|
639 warnings for a missing include directory. */
|
|
|
640 gfc_add_include_path (arg, false, false, false);
|
|
|
641
|
|
|
642 gfc_add_intrinsic_modules_path (arg);
|
|
|
643 break;
|
|
|
644
|
|
|
645 case OPT_fpreprocessed:
|
|
|
646 gfc_option.flag_preprocessed = value;
|
|
|
647 break;
|
|
|
648
|
|
|
649 case OPT_fmax_identifier_length_:
|
|
|
650 if (value > GFC_MAX_SYMBOL_LEN)
|
|
|
651 gfc_fatal_error ("Maximum supported identifier length is %d",
|
|
|
652 GFC_MAX_SYMBOL_LEN);
|
|
|
653 gfc_option.max_identifier_length = value;
|
|
|
654 break;
|
|
|
655
|
|
|
656 case OPT_finit_local_zero:
|
|
|
657 gfc_option.flag_init_integer = GFC_INIT_INTEGER_ON;
|
|
|
658 gfc_option.flag_init_integer_value = 0;
|
|
|
659 flag_init_real = GFC_INIT_REAL_ZERO;
|
|
|
660 gfc_option.flag_init_logical = GFC_INIT_LOGICAL_FALSE;
|
|
|
661 gfc_option.flag_init_character = GFC_INIT_CHARACTER_ON;
|
|
|
662 gfc_option.flag_init_character_value = (char)0;
|
|
|
663 break;
|
|
|
664
|
|
|
665 case OPT_finit_logical_:
|
|
|
666 if (!strcasecmp (arg, "false"))
|
|
|
667 gfc_option.flag_init_logical = GFC_INIT_LOGICAL_FALSE;
|
|
|
668 else if (!strcasecmp (arg, "true"))
|
|
|
669 gfc_option.flag_init_logical = GFC_INIT_LOGICAL_TRUE;
|
|
|
670 else
|
|
|
671 gfc_fatal_error ("Unrecognized option to %<-finit-logical%>: %s",
|
|
|
672 arg);
|
|
|
673 break;
|
|
|
674
|
|
|
675 case OPT_finit_integer_:
|
|
|
676 gfc_option.flag_init_integer = GFC_INIT_INTEGER_ON;
|
|
|
677 gfc_option.flag_init_integer_value = atoi (arg);
|
|
|
678 break;
|
|
|
679
|
|
|
680 case OPT_finit_character_:
|
|
|
681 if (value >= 0 && value <= 127)
|
|
|
682 {
|
|
|
683 gfc_option.flag_init_character = GFC_INIT_CHARACTER_ON;
|
|
|
684 gfc_option.flag_init_character_value = (char)value;
|
|
|
685 }
|
|
|
686 else
|
|
|
687 gfc_fatal_error ("The value of n in %<-finit-character=n%> must be "
|
|
|
688 "between 0 and 127");
|
|
|
689 break;
|
|
|
690
|
|
|
691 case OPT_I:
|
|
|
692 gfc_add_include_path (arg, true, false, true);
|
|
|
693 break;
|
|
|
694
|
|
|
695 case OPT_J:
|
|
|
696 gfc_handle_module_path_options (arg);
|
|
|
697 break;
|
|
|
698
|
|
|
699 case OPT_ffpe_trap_:
|
|
|
700 gfc_handle_fpe_option (arg, true);
|
|
|
701 break;
|
|
|
702
|
|
|
703 case OPT_ffpe_summary_:
|
|
|
704 gfc_handle_fpe_option (arg, false);
|
|
|
705 break;
|
|
|
706
|
|
|
707 case OPT_std_f95:
|
|
131
|
708 gfc_option.allow_std = GFC_STD_OPT_F95;
|
|
111
|
709 gfc_option.warn_std = GFC_STD_F95_OBS;
|
|
|
710 gfc_option.max_continue_fixed = 19;
|
|
|
711 gfc_option.max_continue_free = 39;
|
|
|
712 gfc_option.max_identifier_length = 31;
|
|
|
713 warn_ampersand = 1;
|
|
|
714 warn_tabs = 1;
|
|
|
715 break;
|
|
|
716
|
|
|
717 case OPT_std_f2003:
|
|
131
|
718 gfc_option.allow_std = GFC_STD_OPT_F03;
|
|
111
|
719 gfc_option.warn_std = GFC_STD_F95_OBS;
|
|
|
720 gfc_option.max_identifier_length = 63;
|
|
|
721 warn_ampersand = 1;
|
|
|
722 warn_tabs = 1;
|
|
|
723 break;
|
|
|
724
|
|
|
725 case OPT_std_f2008:
|
|
131
|
726 gfc_option.allow_std = GFC_STD_OPT_F08;
|
|
111
|
727 gfc_option.warn_std = GFC_STD_F95_OBS | GFC_STD_F2008_OBS;
|
|
|
728 gfc_option.max_identifier_length = 63;
|
|
|
729 warn_ampersand = 1;
|
|
|
730 warn_tabs = 1;
|
|
|
731 break;
|
|
|
732
|
|
|
733 case OPT_std_f2008ts:
|
|
131
|
734 case OPT_std_f2018:
|
|
|
735 gfc_option.allow_std = GFC_STD_OPT_F18;
|
|
|
736 gfc_option.warn_std = GFC_STD_F95_OBS | GFC_STD_F2008_OBS
|
|
|
737 | GFC_STD_F2018_OBS;
|
|
111
|
738 gfc_option.max_identifier_length = 63;
|
|
|
739 warn_ampersand = 1;
|
|
|
740 warn_tabs = 1;
|
|
|
741 break;
|
|
|
742
|
|
|
743 case OPT_std_gnu:
|
|
|
744 set_default_std_flags ();
|
|
|
745 break;
|
|
|
746
|
|
|
747 case OPT_std_legacy:
|
|
|
748 set_default_std_flags ();
|
|
|
749 gfc_option.warn_std = 0;
|
|
|
750 break;
|
|
|
751
|
|
|
752 case OPT_fshort_enums:
|
|
|
753 /* Handled in language-independent code. */
|
|
|
754 break;
|
|
|
755
|
|
|
756 case OPT_fcheck_:
|
|
|
757 gfc_handle_runtime_check_option (arg);
|
|
|
758 break;
|
|
|
759
|
|
|
760 case OPT_fdec:
|
|
|
761 /* Enable all DEC extensions. */
|
|
|
762 set_dec_flags (1);
|
|
|
763 break;
|
|
|
764
|
|
|
765 case OPT_fdec_structure:
|
|
|
766 flag_dec_structure = 1;
|
|
|
767 break;
|
|
|
768 }
|
|
|
769
|
|
|
770 Fortran_handle_option_auto (&global_options, &global_options_set,
|
|
|
771 scode, arg, value,
|
|
|
772 gfc_option_lang_mask (), kind,
|
|
|
773 loc, handlers, global_dc);
|
|
|
774 return result;
|
|
|
775 }
|
|
|
776
|
|
|
777
|
|
|
778 /* Return a string with the options passed to the compiler; used for
|
|
|
779 Fortran's compiler_options() intrinsic. */
|
|
|
780
|
|
|
781 char *
|
|
|
782 gfc_get_option_string (void)
|
|
|
783 {
|
|
|
784 unsigned j;
|
|
|
785 size_t len, pos;
|
|
|
786 char *result;
|
|
|
787
|
|
|
788 /* Allocate and return a one-character string with '\0'. */
|
|
|
789 if (!save_decoded_options_count)
|
|
|
790 return XCNEWVEC (char, 1);
|
|
|
791
|
|
|
792 /* Determine required string length. */
|
|
|
793
|
|
|
794 len = 0;
|
|
|
795 for (j = 1; j < save_decoded_options_count; j++)
|
|
|
796 {
|
|
|
797 switch (save_decoded_options[j].opt_index)
|
|
|
798 {
|
|
|
799 case OPT_o:
|
|
|
800 case OPT_d:
|
|
|
801 case OPT_dumpbase:
|
|
|
802 case OPT_dumpdir:
|
|
|
803 case OPT_auxbase:
|
|
|
804 case OPT_quiet:
|
|
|
805 case OPT_version:
|
|
|
806 case OPT_fintrinsic_modules_path:
|
|
|
807 case OPT_fintrinsic_modules_path_:
|
|
|
808 /* Ignore these. */
|
|
|
809 break;
|
|
|
810 default:
|
|
|
811 /* Ignore file names. */
|
|
|
812 if (save_decoded_options[j].orig_option_with_args_text[0] == '-')
|
|
|
813 len += 1
|
|
|
814 + strlen (save_decoded_options[j].orig_option_with_args_text);
|
|
|
815 }
|
|
|
816 }
|
|
|
817
|
|
|
818 result = XCNEWVEC (char, len);
|
|
|
819
|
|
|
820 pos = 0;
|
|
|
821 for (j = 1; j < save_decoded_options_count; j++)
|
|
|
822 {
|
|
|
823 switch (save_decoded_options[j].opt_index)
|
|
|
824 {
|
|
|
825 case OPT_o:
|
|
|
826 case OPT_d:
|
|
|
827 case OPT_dumpbase:
|
|
|
828 case OPT_dumpdir:
|
|
|
829 case OPT_auxbase:
|
|
|
830 case OPT_quiet:
|
|
|
831 case OPT_version:
|
|
|
832 case OPT_fintrinsic_modules_path:
|
|
|
833 case OPT_fintrinsic_modules_path_:
|
|
|
834 /* Ignore these. */
|
|
|
835 continue;
|
|
|
836
|
|
|
837 case OPT_cpp_:
|
|
|
838 /* Use "-cpp" rather than "-cpp=<temporary file>". */
|
|
|
839 len = 4;
|
|
|
840 break;
|
|
|
841
|
|
|
842 default:
|
|
|
843 /* Ignore file names. */
|
|
|
844 if (save_decoded_options[j].orig_option_with_args_text[0] != '-')
|
|
|
845 continue;
|
|
|
846
|
|
|
847 len = strlen (save_decoded_options[j].orig_option_with_args_text);
|
|
|
848 }
|
|
|
849
|
|
|
850 memcpy (&result[pos], save_decoded_options[j].orig_option_with_args_text, len);
|
|
|
851 pos += len;
|
|
|
852 result[pos++] = ' ';
|
|
|
853 }
|
|
|
854
|
|
|
855 result[--pos] = '\0';
|
|
|
856 return result;
|
|
|
857 }
|
