Mercurial > hg > CbC > CbC_gcc
annotate gcc/opts-common.c @ 86:12b3180c7d07
modify calls.c.
author | Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> |
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date | Thu, 15 Dec 2011 02:37:13 +0900 (2011-12-14) |
parents | f6334be47118 |
children | 04ced10e8804 |
rev | line source |
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0 | 1 /* Command line option handling. |
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2 Copyright (C) 2006, 2007, 2008, 2010 Free Software Foundation, Inc. |
0 | 3 |
4 This file is part of GCC. | |
5 | |
6 GCC is free software; you can redistribute it and/or modify it under | |
7 the terms of the GNU General Public License as published by the Free | |
8 Software Foundation; either version 3, or (at your option) any later | |
9 version. | |
10 | |
11 GCC is distributed in the hope that it will be useful, but WITHOUT ANY | |
12 WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
14 for more details. | |
15 | |
16 You should have received a copy of the GNU General Public License | |
17 along with GCC; see the file COPYING3. If not see | |
18 <http://www.gnu.org/licenses/>. */ | |
19 | |
20 #include "config.h" | |
21 #include "system.h" | |
22 #include "intl.h" | |
23 #include "coretypes.h" | |
24 #include "opts.h" | |
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25 #include "flags.h" |
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26 #include "diagnostic.h" |
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27 |
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28 static void prune_options (struct cl_decoded_option **, unsigned int *); |
0 | 29 |
30 /* Perform a binary search to find which option the command-line INPUT | |
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31 matches. Returns its index in the option array, and |
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32 OPT_SPECIAL_unknown on failure. |
0 | 33 |
34 This routine is quite subtle. A normal binary search is not good | |
35 enough because some options can be suffixed with an argument, and | |
36 multiple sub-matches can occur, e.g. input of "-pedantic" matching | |
37 the initial substring of "-pedantic-errors". | |
38 | |
39 A more complicated example is -gstabs. It should match "-g" with | |
40 an argument of "stabs". Suppose, however, that the number and list | |
41 of switches are such that the binary search tests "-gen-decls" | |
42 before having tested "-g". This doesn't match, and as "-gen-decls" | |
43 is less than "-gstabs", it will become the lower bound of the | |
44 binary search range, and "-g" will never be seen. To resolve this | |
45 issue, 'optc-gen.awk' makes "-gen-decls" point, via the back_chain member, | |
46 to "-g" so that failed searches that end between "-gen-decls" and | |
47 the lexicographically subsequent switch know to go back and see if | |
48 "-g" causes a match (which it does in this example). | |
49 | |
50 This search is done in such a way that the longest match for the | |
51 front end in question wins. If there is no match for the current | |
52 front end, the longest match for a different front end is returned | |
53 (or N_OPTS if none) and the caller emits an error message. */ | |
54 size_t | |
55 find_opt (const char *input, int lang_mask) | |
56 { | |
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57 size_t mn, mn_orig, mx, md, opt_len; |
0 | 58 size_t match_wrong_lang; |
59 int comp; | |
60 | |
61 mn = 0; | |
62 mx = cl_options_count; | |
63 | |
64 /* Find mn such this lexicographical inequality holds: | |
65 cl_options[mn] <= input < cl_options[mn + 1]. */ | |
66 while (mx - mn > 1) | |
67 { | |
68 md = (mn + mx) / 2; | |
69 opt_len = cl_options[md].opt_len; | |
70 comp = strncmp (input, cl_options[md].opt_text + 1, opt_len); | |
71 | |
72 if (comp < 0) | |
73 mx = md; | |
74 else | |
75 mn = md; | |
76 } | |
77 | |
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78 mn_orig = mn; |
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79 |
0 | 80 /* This is the switch that is the best match but for a different |
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81 front end, or OPT_SPECIAL_unknown if there is no match at all. */ |
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82 match_wrong_lang = OPT_SPECIAL_unknown; |
0 | 83 |
84 /* Backtrace the chain of possible matches, returning the longest | |
85 one, if any, that fits best. With current GCC switches, this | |
86 loop executes at most twice. */ | |
87 do | |
88 { | |
89 const struct cl_option *opt = &cl_options[mn]; | |
90 | |
91 /* Is the input either an exact match or a prefix that takes a | |
92 joined argument? */ | |
93 if (!strncmp (input, opt->opt_text + 1, opt->opt_len) | |
94 && (input[opt->opt_len] == '\0' || (opt->flags & CL_JOINED))) | |
95 { | |
96 /* If language is OK, return it. */ | |
97 if (opt->flags & lang_mask) | |
98 return mn; | |
99 | |
100 /* If we haven't remembered a prior match, remember this | |
101 one. Any prior match is necessarily better. */ | |
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102 if (match_wrong_lang == OPT_SPECIAL_unknown) |
0 | 103 match_wrong_lang = mn; |
104 } | |
105 | |
106 /* Try the next possibility. This is cl_options_count if there | |
107 are no more. */ | |
108 mn = opt->back_chain; | |
109 } | |
110 while (mn != cl_options_count); | |
111 | |
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112 if (match_wrong_lang == OPT_SPECIAL_unknown && input[0] == '-') |
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113 { |
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114 /* Long options, starting "--", may be abbreviated if the |
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115 abbreviation is unambiguous. This only applies to options |
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116 not taking a joined argument, and abbreviations of "--option" |
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117 are permitted even if there is a variant "--option=". */ |
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118 size_t mnc = mn_orig + 1; |
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119 size_t cmp_len = strlen (input); |
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120 while (mnc < cl_options_count |
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121 && strncmp (input, cl_options[mnc].opt_text + 1, cmp_len) == 0) |
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122 { |
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123 /* Option matching this abbreviation. OK if it is the first |
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124 match and that does not take a joined argument, or the |
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125 second match, taking a joined argument and with only '=' |
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126 added to the first match; otherwise considered |
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127 ambiguous. */ |
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128 if (mnc == mn_orig + 1 |
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129 && !(cl_options[mnc].flags & CL_JOINED)) |
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130 match_wrong_lang = mnc; |
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131 else if (mnc == mn_orig + 2 |
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132 && match_wrong_lang == mn_orig + 1 |
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133 && (cl_options[mnc].flags & CL_JOINED) |
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134 && (cl_options[mnc].opt_len |
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135 == cl_options[mn_orig + 1].opt_len + 1) |
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136 && strncmp (cl_options[mnc].opt_text + 1, |
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137 cl_options[mn_orig + 1].opt_text + 1, |
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138 cl_options[mn_orig + 1].opt_len) == 0) |
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139 ; /* OK, as long as there are no more matches. */ |
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140 else |
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141 return OPT_SPECIAL_unknown; |
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142 mnc++; |
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143 } |
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144 } |
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145 |
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146 /* Return the best wrong match, or OPT_SPECIAL_unknown if none. */ |
0 | 147 return match_wrong_lang; |
148 } | |
149 | |
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150 /* If ARG is a non-negative integer made up solely of digits, return its |
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151 value, otherwise return -1. */ |
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152 |
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153 int |
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154 integral_argument (const char *arg) |
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155 { |
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156 const char *p = arg; |
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157 |
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158 while (*p && ISDIGIT (*p)) |
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159 p++; |
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160 |
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161 if (*p == '\0') |
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162 return atoi (arg); |
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163 |
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164 return -1; |
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165 } |
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166 |
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167 /* Return whether OPTION is OK for the language given by |
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168 LANG_MASK. */ |
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169 static bool |
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170 option_ok_for_language (const struct cl_option *option, |
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171 unsigned int lang_mask) |
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172 { |
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173 if (!(option->flags & lang_mask)) |
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174 return false; |
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175 else if ((option->flags & CL_TARGET) |
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176 && (option->flags & (CL_LANG_ALL | CL_DRIVER)) |
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177 && !(option->flags & (lang_mask & ~CL_COMMON & ~CL_TARGET))) |
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178 /* Complain for target flag language mismatches if any languages |
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179 are specified. */ |
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180 return false; |
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181 return true; |
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182 } |
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183 |
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184 /* Return whether ENUM_ARG is OK for the language given by |
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185 LANG_MASK. */ |
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186 |
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187 static bool |
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188 enum_arg_ok_for_language (const struct cl_enum_arg *enum_arg, |
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189 unsigned int lang_mask) |
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190 { |
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191 return (lang_mask & CL_DRIVER) || !(enum_arg->flags & CL_ENUM_DRIVER_ONLY); |
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192 } |
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193 |
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194 /* Look up ARG in ENUM_ARGS for language LANG_MASK, returning true and |
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195 storing the value in *VALUE if found, and returning false without |
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196 modifying *VALUE if not found. */ |
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197 |
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198 static bool |
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199 enum_arg_to_value (const struct cl_enum_arg *enum_args, |
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200 const char *arg, int *value, unsigned int lang_mask) |
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201 { |
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202 unsigned int i; |
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203 |
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204 for (i = 0; enum_args[i].arg != NULL; i++) |
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205 if (strcmp (arg, enum_args[i].arg) == 0 |
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206 && enum_arg_ok_for_language (&enum_args[i], lang_mask)) |
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207 { |
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208 *value = enum_args[i].value; |
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209 return true; |
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210 } |
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211 |
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212 return false; |
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213 } |
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214 |
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215 /* Look of VALUE in ENUM_ARGS for language LANG_MASK and store the |
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216 corresponding string in *ARGP, returning true if the found string |
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217 was marked as canonical, false otherwise. If VALUE is not found |
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218 (which may be the case for uninitialized values if the relevant |
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219 option has not been passed), set *ARGP to NULL and return |
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220 false. */ |
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221 |
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222 bool |
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223 enum_value_to_arg (const struct cl_enum_arg *enum_args, |
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224 const char **argp, int value, unsigned int lang_mask) |
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225 { |
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226 unsigned int i; |
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227 |
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228 for (i = 0; enum_args[i].arg != NULL; i++) |
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229 if (enum_args[i].value == value |
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230 && (enum_args[i].flags & CL_ENUM_CANONICAL) |
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231 && enum_arg_ok_for_language (&enum_args[i], lang_mask)) |
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232 { |
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233 *argp = enum_args[i].arg; |
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234 return true; |
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235 } |
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236 |
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237 for (i = 0; enum_args[i].arg != NULL; i++) |
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238 if (enum_args[i].value == value |
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239 && enum_arg_ok_for_language (&enum_args[i], lang_mask)) |
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240 { |
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241 *argp = enum_args[i].arg; |
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242 return false; |
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243 } |
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244 |
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245 *argp = NULL; |
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246 return false; |
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247 } |
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248 |
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249 /* Fill in the canonical option part of *DECODED with an option |
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250 described by OPT_INDEX, ARG and VALUE. */ |
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251 |
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252 static void |
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253 generate_canonical_option (size_t opt_index, const char *arg, int value, |
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254 struct cl_decoded_option *decoded) |
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255 { |
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256 const struct cl_option *option = &cl_options[opt_index]; |
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257 const char *opt_text = option->opt_text; |
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258 |
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259 if (value == 0 |
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260 && !(option->flags & CL_REJECT_NEGATIVE) |
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261 && (opt_text[1] == 'W' || opt_text[1] == 'f' || opt_text[1] == 'm')) |
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262 { |
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263 char *t = XNEWVEC (char, option->opt_len + 5); |
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264 t[0] = '-'; |
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265 t[1] = opt_text[1]; |
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266 t[2] = 'n'; |
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267 t[3] = 'o'; |
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268 t[4] = '-'; |
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269 memcpy (t + 5, opt_text + 2, option->opt_len); |
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270 opt_text = t; |
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271 } |
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272 |
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273 decoded->canonical_option[2] = NULL; |
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274 decoded->canonical_option[3] = NULL; |
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275 |
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276 if (arg) |
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277 { |
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278 if ((option->flags & CL_SEPARATE) |
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279 && !(option->flags & CL_SEPARATE_ALIAS)) |
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280 { |
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281 decoded->canonical_option[0] = opt_text; |
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282 decoded->canonical_option[1] = arg; |
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283 decoded->canonical_option_num_elements = 2; |
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284 } |
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285 else |
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286 { |
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287 gcc_assert (option->flags & CL_JOINED); |
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288 decoded->canonical_option[0] = concat (opt_text, arg, NULL); |
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289 decoded->canonical_option[1] = NULL; |
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290 decoded->canonical_option_num_elements = 1; |
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291 } |
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292 } |
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293 else |
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294 { |
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295 decoded->canonical_option[0] = opt_text; |
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296 decoded->canonical_option[1] = NULL; |
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297 decoded->canonical_option_num_elements = 1; |
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298 } |
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299 } |
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300 |
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301 /* Structure describing mappings from options on the command line to |
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302 options to look up with find_opt. */ |
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303 struct option_map |
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304 { |
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305 /* Prefix of the option on the command line. */ |
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306 const char *opt0; |
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307 /* If two argv elements are considered to be merged into one option, |
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308 prefix for the second element, otherwise NULL. */ |
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309 const char *opt1; |
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310 /* The new prefix to map to. */ |
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311 const char *new_prefix; |
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312 /* Whether at least one character is needed following opt1 or opt0 |
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313 for this mapping to be used. (--optimize= is valid for -O, but |
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314 --warn- is not valid for -W.) */ |
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315 bool another_char_needed; |
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316 /* Whether the original option is a negated form of the option |
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317 resulting from this map. */ |
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318 bool negated; |
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319 }; |
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320 static const struct option_map option_map[] = |
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321 { |
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322 { "-Wno-", NULL, "-W", false, true }, |
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323 { "-fno-", NULL, "-f", false, true }, |
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324 { "-mno-", NULL, "-m", false, true }, |
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325 { "--debug=", NULL, "-g", false, false }, |
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326 { "--machine-", NULL, "-m", true, false }, |
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327 { "--machine-no-", NULL, "-m", false, true }, |
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328 { "--machine=", NULL, "-m", false, false }, |
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329 { "--machine=no-", NULL, "-m", false, true }, |
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330 { "--machine", "", "-m", false, false }, |
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331 { "--machine", "no-", "-m", false, true }, |
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332 { "--optimize=", NULL, "-O", false, false }, |
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333 { "--std=", NULL, "-std=", false, false }, |
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334 { "--std", "", "-std=", false, false }, |
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335 { "--warn-", NULL, "-W", true, false }, |
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336 { "--warn-no-", NULL, "-W", false, true }, |
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337 { "--", NULL, "-f", true, false }, |
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338 { "--no-", NULL, "-f", false, true } |
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339 }; |
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340 |
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341 /* Decode the switch beginning at ARGV for the language indicated by |
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342 LANG_MASK (including CL_COMMON and CL_TARGET if applicable), into |
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343 the structure *DECODED. Returns the number of switches |
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344 consumed. */ |
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345 |
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346 static unsigned int |
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347 decode_cmdline_option (const char **argv, unsigned int lang_mask, |
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348 struct cl_decoded_option *decoded) |
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349 { |
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350 size_t opt_index; |
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351 const char *arg = 0; |
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352 int value = 1; |
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353 unsigned int result = 1, i, extra_args, separate_args = 0; |
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354 int adjust_len = 0; |
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355 size_t total_len; |
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356 char *p; |
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357 const struct cl_option *option; |
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358 int errors = 0; |
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359 const char *warn_message = NULL; |
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360 bool separate_arg_flag; |
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361 bool joined_arg_flag; |
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362 bool have_separate_arg = false; |
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363 |
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364 extra_args = 0; |
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365 |
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366 opt_index = find_opt (argv[0] + 1, lang_mask); |
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367 i = 0; |
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368 while (opt_index == OPT_SPECIAL_unknown |
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369 && i < ARRAY_SIZE (option_map)) |
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370 { |
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371 const char *opt0 = option_map[i].opt0; |
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372 const char *opt1 = option_map[i].opt1; |
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373 const char *new_prefix = option_map[i].new_prefix; |
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374 bool another_char_needed = option_map[i].another_char_needed; |
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375 size_t opt0_len = strlen (opt0); |
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376 size_t opt1_len = (opt1 == NULL ? 0 : strlen (opt1)); |
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377 size_t optn_len = (opt1 == NULL ? opt0_len : opt1_len); |
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378 size_t new_prefix_len = strlen (new_prefix); |
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379 |
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380 extra_args = (opt1 == NULL ? 0 : 1); |
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381 value = !option_map[i].negated; |
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382 |
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383 if (strncmp (argv[0], opt0, opt0_len) == 0 |
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384 && (opt1 == NULL |
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385 || (argv[1] != NULL && strncmp (argv[1], opt1, opt1_len) == 0)) |
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386 && (!another_char_needed |
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387 || argv[extra_args][optn_len] != 0)) |
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388 { |
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389 size_t arglen = strlen (argv[extra_args]); |
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390 char *dup; |
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391 |
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392 adjust_len = (int) optn_len - (int) new_prefix_len; |
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393 dup = XNEWVEC (char, arglen + 1 - adjust_len); |
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394 memcpy (dup, new_prefix, new_prefix_len); |
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395 memcpy (dup + new_prefix_len, argv[extra_args] + optn_len, |
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396 arglen - optn_len + 1); |
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397 opt_index = find_opt (dup + 1, lang_mask); |
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398 free (dup); |
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399 } |
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400 i++; |
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401 } |
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402 |
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403 if (opt_index == OPT_SPECIAL_unknown) |
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404 { |
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405 arg = argv[0]; |
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406 extra_args = 0; |
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407 value = 1; |
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408 goto done; |
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409 } |
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410 |
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411 option = &cl_options[opt_index]; |
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412 |
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413 /* Reject negative form of switches that don't take negatives as |
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414 unrecognized. */ |
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415 if (!value && (option->flags & CL_REJECT_NEGATIVE)) |
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416 { |
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417 opt_index = OPT_SPECIAL_unknown; |
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418 errors |= CL_ERR_NEGATIVE; |
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419 arg = argv[0]; |
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420 goto done; |
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421 } |
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422 |
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423 result = extra_args + 1; |
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424 warn_message = option->warn_message; |
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425 |
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426 /* Check to see if the option is disabled for this configuration. */ |
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427 if (option->flags & CL_DISABLED) |
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428 errors |= CL_ERR_DISABLED; |
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429 |
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430 /* Determine whether there may be a separate argument based on |
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431 whether this option is being processed for the driver, and, if |
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432 so, how many such arguments. */ |
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433 separate_arg_flag = ((option->flags & CL_SEPARATE) |
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434 && !((option->flags & CL_NO_DRIVER_ARG) |
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435 && (lang_mask & CL_DRIVER))); |
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436 separate_args = (separate_arg_flag |
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437 ? ((option->flags & CL_SEPARATE_NARGS_MASK) |
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438 >> CL_SEPARATE_NARGS_SHIFT) + 1 |
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439 : 0); |
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440 joined_arg_flag = (option->flags & CL_JOINED) != 0; |
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441 |
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442 /* Sort out any argument the switch takes. */ |
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443 if (joined_arg_flag) |
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444 { |
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445 /* Have arg point to the original switch. This is because |
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446 some code, such as disable_builtin_function, expects its |
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447 argument to be persistent until the program exits. */ |
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448 arg = argv[extra_args] + cl_options[opt_index].opt_len + 1 + adjust_len; |
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449 |
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450 if (*arg == '\0' && !(option->flags & CL_MISSING_OK)) |
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451 { |
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452 if (separate_arg_flag) |
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453 { |
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454 arg = argv[extra_args + 1]; |
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455 result = extra_args + 2; |
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456 if (arg == NULL) |
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457 result = extra_args + 1; |
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458 else |
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459 have_separate_arg = true; |
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460 } |
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461 else |
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462 /* Missing argument. */ |
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463 arg = NULL; |
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464 } |
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465 } |
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466 else if (separate_arg_flag) |
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467 { |
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468 arg = argv[extra_args + 1]; |
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469 for (i = 0; i < separate_args; i++) |
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470 if (argv[extra_args + 1 + i] == NULL) |
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471 { |
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472 errors |= CL_ERR_MISSING_ARG; |
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473 break; |
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474 } |
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475 result = extra_args + 1 + i; |
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476 if (arg != NULL) |
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477 have_separate_arg = true; |
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478 } |
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479 |
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480 if (arg == NULL && (separate_arg_flag || joined_arg_flag)) |
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481 errors |= CL_ERR_MISSING_ARG; |
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482 |
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483 /* Is this option an alias (or an ignored option, marked as an alias |
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484 of OPT_SPECIAL_ignore)? */ |
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485 if (option->alias_target != N_OPTS |
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486 && (!(option->flags & CL_SEPARATE_ALIAS) || have_separate_arg)) |
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487 { |
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488 size_t new_opt_index = option->alias_target; |
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489 |
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490 if (new_opt_index == OPT_SPECIAL_ignore) |
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491 { |
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492 gcc_assert (option->alias_arg == NULL); |
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493 gcc_assert (option->neg_alias_arg == NULL); |
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494 opt_index = new_opt_index; |
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495 arg = NULL; |
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496 value = 1; |
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497 } |
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498 else |
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499 { |
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500 const struct cl_option *new_option = &cl_options[new_opt_index]; |
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501 |
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502 /* The new option must not be an alias itself. */ |
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503 gcc_assert (new_option->alias_target == N_OPTS |
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504 || (new_option->flags & CL_SEPARATE_ALIAS)); |
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505 |
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506 if (option->neg_alias_arg) |
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507 { |
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508 gcc_assert (option->alias_arg != NULL); |
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509 gcc_assert (arg == NULL); |
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510 if (value) |
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511 arg = option->alias_arg; |
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512 else |
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513 arg = option->neg_alias_arg; |
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514 value = 1; |
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515 } |
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516 else if (option->alias_arg) |
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517 { |
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518 gcc_assert (value == 1); |
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519 gcc_assert (arg == NULL); |
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520 arg = option->alias_arg; |
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521 } |
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522 |
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523 opt_index = new_opt_index; |
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524 option = new_option; |
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525 |
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526 if (value == 0) |
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527 gcc_assert (!(option->flags & CL_REJECT_NEGATIVE)); |
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528 |
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529 /* Recompute what arguments are allowed. */ |
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530 separate_arg_flag = ((option->flags & CL_SEPARATE) |
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531 && !((option->flags & CL_NO_DRIVER_ARG) |
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532 && (lang_mask & CL_DRIVER))); |
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533 joined_arg_flag = (option->flags & CL_JOINED) != 0; |
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534 |
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535 if (separate_args > 1 || (option->flags & CL_SEPARATE_NARGS_MASK)) |
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536 gcc_assert (separate_args |
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537 == ((option->flags & CL_SEPARATE_NARGS_MASK) |
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538 >> CL_SEPARATE_NARGS_SHIFT) + 1); |
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539 |
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540 if (!(errors & CL_ERR_MISSING_ARG)) |
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541 { |
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542 if (separate_arg_flag || joined_arg_flag) |
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543 { |
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544 if ((option->flags & CL_MISSING_OK) && arg == NULL) |
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545 arg = ""; |
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546 gcc_assert (arg != NULL); |
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547 } |
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548 else |
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549 gcc_assert (arg == NULL); |
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550 } |
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551 |
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552 /* Recheck for warnings and disabled options. */ |
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553 if (option->warn_message) |
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554 { |
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555 gcc_assert (warn_message == NULL); |
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556 warn_message = option->warn_message; |
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557 } |
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558 if (option->flags & CL_DISABLED) |
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559 errors |= CL_ERR_DISABLED; |
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560 } |
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561 } |
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562 |
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563 /* Check if this is a switch for a different front end. */ |
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564 if (!option_ok_for_language (option, lang_mask)) |
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565 errors |= CL_ERR_WRONG_LANG; |
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566 |
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567 /* If the switch takes an integer, convert it. */ |
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568 if (arg && (option->flags & CL_UINTEGER)) |
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569 { |
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570 value = integral_argument (arg); |
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571 if (value == -1) |
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572 errors |= CL_ERR_UINT_ARG; |
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573 } |
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574 |
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575 /* If the switch takes an enumerated argument, convert it. */ |
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576 if (arg && (option->var_type == CLVC_ENUM)) |
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577 { |
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578 const struct cl_enum *e = &cl_enums[option->var_enum]; |
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579 |
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580 gcc_assert (value == 1); |
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581 if (enum_arg_to_value (e->values, arg, &value, lang_mask)) |
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582 { |
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583 const char *carg = NULL; |
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584 |
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585 if (enum_value_to_arg (e->values, &carg, value, lang_mask)) |
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586 arg = carg; |
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587 gcc_assert (carg != NULL); |
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588 } |
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589 else |
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590 errors |= CL_ERR_ENUM_ARG; |
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591 } |
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592 |
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593 done: |
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594 decoded->opt_index = opt_index; |
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595 decoded->arg = arg; |
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596 decoded->value = value; |
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597 decoded->errors = errors; |
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598 decoded->warn_message = warn_message; |
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599 |
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600 if (opt_index == OPT_SPECIAL_unknown) |
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601 gcc_assert (result == 1); |
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602 |
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603 gcc_assert (result >= 1 && result <= ARRAY_SIZE (decoded->canonical_option)); |
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604 decoded->canonical_option_num_elements = result; |
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605 total_len = 0; |
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606 for (i = 0; i < ARRAY_SIZE (decoded->canonical_option); i++) |
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607 { |
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608 if (i < result) |
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609 { |
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610 size_t len; |
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611 if (opt_index == OPT_SPECIAL_unknown) |
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612 decoded->canonical_option[i] = argv[i]; |
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613 else |
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614 decoded->canonical_option[i] = NULL; |
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615 len = strlen (argv[i]); |
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616 /* If the argument is an empty string, we will print it as "" in |
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617 orig_option_with_args_text. */ |
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618 total_len += (len != 0 ? len : 2) + 1; |
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619 } |
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620 else |
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621 decoded->canonical_option[i] = NULL; |
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622 } |
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623 if (opt_index != OPT_SPECIAL_unknown && opt_index != OPT_SPECIAL_ignore) |
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624 { |
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625 generate_canonical_option (opt_index, arg, value, decoded); |
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626 if (separate_args > 1) |
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627 { |
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628 for (i = 0; i < separate_args; i++) |
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629 { |
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630 if (argv[extra_args + 1 + i] == NULL) |
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631 break; |
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632 else |
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633 decoded->canonical_option[1 + i] = argv[extra_args + 1 + i]; |
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634 } |
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635 gcc_assert (result == 1 + i); |
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636 decoded->canonical_option_num_elements = result; |
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637 } |
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638 } |
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639 decoded->orig_option_with_args_text = p = XNEWVEC (char, total_len); |
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640 for (i = 0; i < result; i++) |
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641 { |
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642 size_t len = strlen (argv[i]); |
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643 |
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644 /* Print the empty string verbally. */ |
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645 if (len == 0) |
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646 { |
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647 *p++ = '"'; |
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648 *p++ = '"'; |
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649 } |
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650 else |
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651 memcpy (p, argv[i], len); |
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652 p += len; |
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653 if (i == result - 1) |
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654 *p++ = 0; |
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655 else |
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656 *p++ = ' '; |
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657 } |
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658 |
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659 return result; |
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660 } |
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661 |
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662 /* Decode command-line options (ARGC and ARGV being the arguments of |
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663 main) into an array, setting *DECODED_OPTIONS to a pointer to that |
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664 array and *DECODED_OPTIONS_COUNT to the number of entries in the |
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665 array. The first entry in the array is always one for the program |
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666 name (OPT_SPECIAL_program_name). LANG_MASK indicates the language |
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667 flags applicable for decoding (including CL_COMMON and CL_TARGET if |
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668 those options should be considered applicable). Do not produce any |
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669 diagnostics or set state outside of these variables. */ |
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670 |
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671 void |
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672 decode_cmdline_options_to_array (unsigned int argc, const char **argv, |
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673 unsigned int lang_mask, |
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674 struct cl_decoded_option **decoded_options, |
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675 unsigned int *decoded_options_count) |
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676 { |
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677 unsigned int n, i; |
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678 struct cl_decoded_option *opt_array; |
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679 unsigned int num_decoded_options; |
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680 bool argv_copied = false; |
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681 |
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682 opt_array = XNEWVEC (struct cl_decoded_option, argc); |
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683 |
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684 opt_array[0].opt_index = OPT_SPECIAL_program_name; |
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685 opt_array[0].warn_message = NULL; |
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686 opt_array[0].arg = argv[0]; |
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687 opt_array[0].orig_option_with_args_text = argv[0]; |
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688 opt_array[0].canonical_option_num_elements = 1; |
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689 opt_array[0].canonical_option[0] = argv[0]; |
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690 opt_array[0].canonical_option[1] = NULL; |
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691 opt_array[0].canonical_option[2] = NULL; |
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692 opt_array[0].canonical_option[3] = NULL; |
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693 opt_array[0].value = 1; |
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694 opt_array[0].errors = 0; |
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695 num_decoded_options = 1; |
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696 |
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697 for (i = 1; i < argc; i += n) |
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698 { |
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699 const char *opt = argv[i]; |
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700 |
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701 /* Interpret "-" or a non-switch as a file name. */ |
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702 if (opt[0] != '-' || opt[1] == '\0') |
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703 { |
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704 generate_option_input_file (opt, &opt_array[num_decoded_options]); |
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705 num_decoded_options++; |
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706 n = 1; |
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707 continue; |
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708 } |
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709 |
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710 n = decode_cmdline_option (argv + i, lang_mask, |
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711 &opt_array[num_decoded_options]); |
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712 num_decoded_options++; |
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713 } |
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714 |
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715 if (argv_copied) |
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716 free (argv); |
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717 *decoded_options = opt_array; |
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718 *decoded_options_count = num_decoded_options; |
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719 prune_options (decoded_options, decoded_options_count); |
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720 } |
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721 |
0 | 722 /* Return true if NEXT_OPT_IDX cancels OPT_IDX. Return false if the |
723 next one is the same as ORIG_NEXT_OPT_IDX. */ | |
724 | |
725 static bool | |
726 cancel_option (int opt_idx, int next_opt_idx, int orig_next_opt_idx) | |
727 { | |
728 /* An option can be canceled by the same option or an option with | |
729 Negative. */ | |
730 if (cl_options [next_opt_idx].neg_index == opt_idx) | |
731 return true; | |
732 | |
733 if (cl_options [next_opt_idx].neg_index != orig_next_opt_idx) | |
734 return cancel_option (opt_idx, cl_options [next_opt_idx].neg_index, | |
735 orig_next_opt_idx); | |
55
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736 |
0 | 737 return false; |
738 } | |
739 | |
740 /* Filter out options canceled by the ones after them. */ | |
741 | |
67
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742 static void |
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743 prune_options (struct cl_decoded_option **decoded_options, |
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744 unsigned int *decoded_options_count) |
0 | 745 { |
67
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746 unsigned int old_decoded_options_count = *decoded_options_count; |
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747 struct cl_decoded_option *old_decoded_options = *decoded_options; |
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748 unsigned int new_decoded_options_count; |
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749 struct cl_decoded_option *new_decoded_options |
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750 = XNEWVEC (struct cl_decoded_option, old_decoded_options_count); |
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751 unsigned int i; |
0 | 752 const struct cl_option *option; |
753 | |
754 /* Remove arguments which are negated by others after them. */ | |
67
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755 new_decoded_options_count = 0; |
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756 for (i = 0; i < old_decoded_options_count; i++) |
0 | 757 { |
67
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758 unsigned int j, opt_idx, next_opt_idx; |
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|
759 |
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760 if (old_decoded_options[i].errors & ~CL_ERR_WRONG_LANG) |
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761 goto keep; |
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|
762 |
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|
763 opt_idx = old_decoded_options[i].opt_index; |
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
764 switch (opt_idx) |
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
765 { |
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
766 case OPT_SPECIAL_unknown: |
f6334be47118
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
767 case OPT_SPECIAL_ignore: |
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
768 case OPT_SPECIAL_program_name: |
f6334be47118
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
769 case OPT_SPECIAL_input_file: |
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
770 goto keep; |
0 | 771 |
67
f6334be47118
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
772 default: |
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
55
diff
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|
773 gcc_assert (opt_idx < cl_options_count); |
f6334be47118
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
774 option = &cl_options[opt_idx]; |
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
55
diff
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|
775 if (option->neg_index < 0) |
f6334be47118
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
776 goto keep; |
f6334be47118
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
777 |
f6334be47118
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
778 /* Skip joined switches. */ |
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
779 if ((option->flags & CL_JOINED)) |
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
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diff
changeset
|
780 goto keep; |
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
781 |
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
55
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changeset
|
782 for (j = i + 1; j < old_decoded_options_count; j++) |
0 | 783 { |
67
f6334be47118
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
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diff
changeset
|
784 if (old_decoded_options[j].errors & ~CL_ERR_WRONG_LANG) |
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
785 continue; |
f6334be47118
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
786 next_opt_idx = old_decoded_options[j].opt_index; |
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
787 if (next_opt_idx >= cl_options_count) |
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
788 continue; |
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
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diff
changeset
|
789 if (cl_options[next_opt_idx].neg_index < 0) |
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
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changeset
|
790 continue; |
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
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diff
changeset
|
791 if ((cl_options[next_opt_idx].flags & CL_JOINED)) |
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
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|
792 continue; |
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
793 if (cancel_option (opt_idx, next_opt_idx, next_opt_idx)) |
0 | 794 break; |
795 } | |
67
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
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changeset
|
796 if (j == old_decoded_options_count) |
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
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diff
changeset
|
797 { |
0 | 798 keep: |
67
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
799 new_decoded_options[new_decoded_options_count] |
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
55
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changeset
|
800 = old_decoded_options[i]; |
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
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diff
changeset
|
801 new_decoded_options_count++; |
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
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diff
changeset
|
802 } |
f6334be47118
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
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diff
changeset
|
803 break; |
0 | 804 } |
805 } | |
806 | |
67
f6334be47118
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
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diff
changeset
|
807 free (old_decoded_options); |
f6334be47118
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
808 new_decoded_options = XRESIZEVEC (struct cl_decoded_option, |
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
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diff
changeset
|
809 new_decoded_options, |
f6334be47118
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
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diff
changeset
|
810 new_decoded_options_count); |
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
811 *decoded_options = new_decoded_options; |
f6334be47118
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
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diff
changeset
|
812 *decoded_options_count = new_decoded_options_count; |
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
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diff
changeset
|
813 } |
f6334be47118
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
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diff
changeset
|
814 |
f6334be47118
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
815 /* Handle option DECODED for the language indicated by LANG_MASK, |
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
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diff
changeset
|
816 using the handlers in HANDLERS and setting fields in OPTS and |
f6334be47118
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
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diff
changeset
|
817 OPTS_SET. KIND is the diagnostic_t if this is a diagnostics |
f6334be47118
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
818 option, DK_UNSPECIFIED otherwise, and LOC is the location of the |
f6334be47118
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
819 option for options from the source file, UNKNOWN_LOCATION |
f6334be47118
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
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diff
changeset
|
820 otherwise. GENERATED_P is true for an option generated as part of |
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
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diff
changeset
|
821 processing another option or otherwise generated internally, false |
f6334be47118
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
822 for one explicitly passed by the user. Returns false if the switch |
f6334be47118
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
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diff
changeset
|
823 was invalid. DC is the diagnostic context for options affecting |
f6334be47118
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
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diff
changeset
|
824 diagnostics state, or NULL. */ |
f6334be47118
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
825 |
f6334be47118
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
826 static bool |
f6334be47118
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
827 handle_option (struct gcc_options *opts, |
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
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diff
changeset
|
828 struct gcc_options *opts_set, |
f6334be47118
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
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diff
changeset
|
829 const struct cl_decoded_option *decoded, |
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
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diff
changeset
|
830 unsigned int lang_mask, int kind, location_t loc, |
f6334be47118
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
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diff
changeset
|
831 const struct cl_option_handlers *handlers, |
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
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diff
changeset
|
832 bool generated_p, diagnostic_context *dc) |
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
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diff
changeset
|
833 { |
f6334be47118
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
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diff
changeset
|
834 size_t opt_index = decoded->opt_index; |
f6334be47118
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
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diff
changeset
|
835 const char *arg = decoded->arg; |
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update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
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diff
changeset
|
836 int value = decoded->value; |
f6334be47118
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
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diff
changeset
|
837 const struct cl_option *option = &cl_options[opt_index]; |
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
838 void *flag_var = option_flag_var (opt_index, opts); |
f6334be47118
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
839 size_t i; |
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
840 |
f6334be47118
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
841 if (flag_var) |
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
842 set_option (opts, (generated_p ? NULL : opts_set), |
f6334be47118
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
843 opt_index, value, arg, kind, loc, dc); |
f6334be47118
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
844 |
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
845 for (i = 0; i < handlers->num_handlers; i++) |
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
846 if (option->flags & handlers->handlers[i].mask) |
f6334be47118
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
847 { |
f6334be47118
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
848 if (!handlers->handlers[i].handler (opts, opts_set, decoded, |
f6334be47118
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
849 lang_mask, kind, loc, |
f6334be47118
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
850 handlers, dc)) |
f6334be47118
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
851 return false; |
f6334be47118
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
852 else |
f6334be47118
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
853 handlers->post_handling_callback (decoded, |
f6334be47118
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
854 handlers->handlers[i].mask); |
f6334be47118
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
855 } |
f6334be47118
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
856 |
f6334be47118
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
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diff
changeset
|
857 return true; |
f6334be47118
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
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diff
changeset
|
858 } |
f6334be47118
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
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diff
changeset
|
859 |
f6334be47118
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
860 /* Like handle_option, but OPT_INDEX, ARG and VALUE describe the |
f6334be47118
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
861 option instead of DECODED. This is used for callbacks when one |
f6334be47118
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
862 option implies another instead of an option being decoded from the |
f6334be47118
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
863 command line. */ |
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864 |
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865 bool |
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866 handle_generated_option (struct gcc_options *opts, |
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867 struct gcc_options *opts_set, |
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868 size_t opt_index, const char *arg, int value, |
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869 unsigned int lang_mask, int kind, location_t loc, |
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870 const struct cl_option_handlers *handlers, |
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871 diagnostic_context *dc) |
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872 { |
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873 struct cl_decoded_option decoded; |
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874 |
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875 generate_option (opt_index, arg, value, lang_mask, &decoded); |
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876 return handle_option (opts, opts_set, &decoded, lang_mask, kind, loc, |
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877 handlers, true, dc); |
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878 } |
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879 |
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880 /* Fill in *DECODED with an option described by OPT_INDEX, ARG and |
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881 VALUE for a front end using LANG_MASK. This is used when the |
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882 compiler generates options internally. */ |
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883 |
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884 void |
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885 generate_option (size_t opt_index, const char *arg, int value, |
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886 unsigned int lang_mask, struct cl_decoded_option *decoded) |
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887 { |
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888 const struct cl_option *option = &cl_options[opt_index]; |
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889 |
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890 decoded->opt_index = opt_index; |
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891 decoded->warn_message = NULL; |
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892 decoded->arg = arg; |
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893 decoded->value = value; |
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894 decoded->errors = (option_ok_for_language (option, lang_mask) |
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895 ? 0 |
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896 : CL_ERR_WRONG_LANG); |
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897 |
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898 generate_canonical_option (opt_index, arg, value, decoded); |
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899 switch (decoded->canonical_option_num_elements) |
0 | 900 { |
67
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901 case 1: |
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902 decoded->orig_option_with_args_text = decoded->canonical_option[0]; |
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903 break; |
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904 |
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905 case 2: |
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906 decoded->orig_option_with_args_text |
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907 = concat (decoded->canonical_option[0], " ", |
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908 decoded->canonical_option[1], NULL); |
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909 break; |
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910 |
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911 default: |
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912 gcc_unreachable (); |
0 | 913 } |
67
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914 } |
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915 |
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916 /* Fill in *DECODED with an option for input file FILE. */ |
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917 |
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918 void |
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919 generate_option_input_file (const char *file, |
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920 struct cl_decoded_option *decoded) |
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921 { |
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922 decoded->opt_index = OPT_SPECIAL_input_file; |
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923 decoded->warn_message = NULL; |
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924 decoded->arg = file; |
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925 decoded->orig_option_with_args_text = file; |
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926 decoded->canonical_option_num_elements = 1; |
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927 decoded->canonical_option[0] = file; |
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928 decoded->canonical_option[1] = NULL; |
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929 decoded->canonical_option[2] = NULL; |
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930 decoded->canonical_option[3] = NULL; |
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931 decoded->value = 1; |
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932 decoded->errors = 0; |
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933 } |
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934 |
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935 /* Handle the switch DECODED (location LOC) for the language indicated |
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936 by LANG_MASK, using the handlers in *HANDLERS and setting fields in |
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937 OPTS and OPTS_SET and using diagnostic context DC (if not NULL) for |
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938 diagnostic options. */ |
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939 |
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940 void |
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941 read_cmdline_option (struct gcc_options *opts, |
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942 struct gcc_options *opts_set, |
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943 struct cl_decoded_option *decoded, |
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944 location_t loc, |
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945 unsigned int lang_mask, |
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946 const struct cl_option_handlers *handlers, |
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947 diagnostic_context *dc) |
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948 { |
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949 const struct cl_option *option; |
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950 const char *opt = decoded->orig_option_with_args_text; |
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951 |
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952 if (decoded->warn_message) |
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953 warning_at (loc, 0, decoded->warn_message, opt); |
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954 |
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955 if (decoded->opt_index == OPT_SPECIAL_unknown) |
0 | 956 { |
67
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957 if (handlers->unknown_option_callback (decoded)) |
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958 error_at (loc, "unrecognized command line option %qs", decoded->arg); |
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959 return; |
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960 } |
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parents:
55
diff
changeset
|
961 |
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parents:
55
diff
changeset
|
962 if (decoded->opt_index == OPT_SPECIAL_ignore) |
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parents:
55
diff
changeset
|
963 return; |
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parents:
55
diff
changeset
|
964 |
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
965 option = &cl_options[decoded->opt_index]; |
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parents:
55
diff
changeset
|
966 |
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
967 if (decoded->errors & CL_ERR_DISABLED) |
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parents:
55
diff
changeset
|
968 { |
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
969 error_at (loc, "command line option %qs" |
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parents:
55
diff
changeset
|
970 " is not supported by this configuration", opt); |
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
971 return; |
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
972 } |
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parents:
55
diff
changeset
|
973 |
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
55
diff
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|
974 if (decoded->errors & CL_ERR_MISSING_ARG) |
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parents:
55
diff
changeset
|
975 { |
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
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diff
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|
976 if (option->missing_argument_error) |
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parents:
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diff
changeset
|
977 error_at (loc, option->missing_argument_error, opt); |
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
55
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|
978 else |
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parents:
55
diff
changeset
|
979 error_at (loc, "missing argument to %qs", opt); |
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
980 return; |
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
981 } |
f6334be47118
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parents:
55
diff
changeset
|
982 |
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
983 if (decoded->errors & CL_ERR_UINT_ARG) |
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
984 { |
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
985 error_at (loc, "argument to %qs should be a non-negative integer", |
f6334be47118
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parents:
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diff
changeset
|
986 option->opt_text); |
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
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diff
changeset
|
987 return; |
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parents:
55
diff
changeset
|
988 } |
f6334be47118
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parents:
55
diff
changeset
|
989 |
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
990 if (decoded->errors & CL_ERR_ENUM_ARG) |
f6334be47118
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parents:
55
diff
changeset
|
991 { |
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parents:
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diff
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|
992 const struct cl_enum *e = &cl_enums[option->var_enum]; |
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parents:
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diff
changeset
|
993 unsigned int i; |
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
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diff
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|
994 size_t len; |
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parents:
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diff
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|
995 char *s, *p; |
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
996 |
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parents:
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diff
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|
997 if (e->unknown_error) |
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
998 error_at (loc, e->unknown_error, decoded->arg); |
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
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diff
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|
999 else |
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parents:
55
diff
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|
1000 error_at (loc, "unrecognized argument in option %qs", opt); |
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parents:
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diff
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|
1001 |
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parents:
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diff
changeset
|
1002 len = 0; |
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parents:
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diff
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1003 for (i = 0; e->values[i].arg != NULL; i++) |
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parents:
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|
1004 len += strlen (e->values[i].arg) + 1; |
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parents:
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diff
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|
1005 |
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|
1006 s = XALLOCAVEC (char, len); |
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parents:
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diff
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|
1007 p = s; |
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|
1008 for (i = 0; e->values[i].arg != NULL; i++) |
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parents:
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diff
changeset
|
1009 { |
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diff
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|
1010 size_t arglen = strlen (e->values[i].arg); |
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parents:
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diff
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|
1011 memcpy (p, e->values[i].arg, arglen); |
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|
1012 p[arglen] = ' '; |
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parents:
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diff
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|
1013 p += arglen + 1; |
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parents:
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diff
changeset
|
1014 } |
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parents:
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diff
changeset
|
1015 p[-1] = 0; |
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
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diff
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|
1016 inform (loc, "valid arguments to %qs are: %s", option->opt_text, s); |
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parents:
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|
1017 return; |
0 | 1018 } |
1019 | |
67
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parents:
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diff
changeset
|
1020 if (decoded->errors & CL_ERR_WRONG_LANG) |
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
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diff
changeset
|
1021 { |
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parents:
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diff
changeset
|
1022 handlers->wrong_lang_callback (decoded, lang_mask); |
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parents:
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diff
changeset
|
1023 return; |
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parents:
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diff
changeset
|
1024 } |
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parents:
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diff
changeset
|
1025 |
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changeset
|
1026 gcc_assert (!decoded->errors); |
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diff
changeset
|
1027 |
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parents:
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diff
changeset
|
1028 if (!handle_option (opts, opts_set, decoded, lang_mask, DK_UNSPECIFIED, |
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parents:
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diff
changeset
|
1029 loc, handlers, false, dc)) |
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parents:
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diff
changeset
|
1030 error_at (loc, "unrecognized command line option %qs", opt); |
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parents:
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diff
changeset
|
1031 } |
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parents:
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diff
changeset
|
1032 |
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|
1033 /* Set any field in OPTS, and OPTS_SET if not NULL, for option |
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|
1034 OPT_INDEX according to VALUE and ARG, diagnostic kind KIND, |
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parents:
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diff
changeset
|
1035 location LOC, using diagnostic context DC if not NULL for |
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
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changeset
|
1036 diagnostic classification. */ |
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parents:
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diff
changeset
|
1037 |
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parents:
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changeset
|
1038 void |
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|
1039 set_option (struct gcc_options *opts, struct gcc_options *opts_set, |
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parents:
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changeset
|
1040 int opt_index, int value, const char *arg, int kind, |
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diff
changeset
|
1041 location_t loc, diagnostic_context *dc) |
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parents:
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diff
changeset
|
1042 { |
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diff
changeset
|
1043 const struct cl_option *option = &cl_options[opt_index]; |
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parents:
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diff
changeset
|
1044 void *flag_var = option_flag_var (opt_index, opts); |
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parents:
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changeset
|
1045 void *set_flag_var = NULL; |
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parents:
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diff
changeset
|
1046 |
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parents:
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diff
changeset
|
1047 if (!flag_var) |
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parents:
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diff
changeset
|
1048 return; |
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parents:
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diff
changeset
|
1049 |
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parents:
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changeset
|
1050 if (opts_set != NULL) |
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
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diff
changeset
|
1051 set_flag_var = option_flag_var (opt_index, opts_set); |
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parents:
55
diff
changeset
|
1052 |
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parents:
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diff
changeset
|
1053 switch (option->var_type) |
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parents:
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diff
changeset
|
1054 { |
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parents:
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changeset
|
1055 case CLVC_BOOLEAN: |
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parents:
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diff
changeset
|
1056 *(int *) flag_var = value; |
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1057 if (set_flag_var) |
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1058 *(int *) set_flag_var = 1; |
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1059 break; |
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1060 |
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1061 case CLVC_EQUAL: |
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1062 *(int *) flag_var = (value |
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1063 ? option->var_value |
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1064 : !option->var_value); |
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1065 if (set_flag_var) |
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1066 *(int *) set_flag_var = 1; |
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1067 break; |
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1068 |
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|
1069 case CLVC_BIT_CLEAR: |
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1070 case CLVC_BIT_SET: |
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1071 if ((value != 0) == (option->var_type == CLVC_BIT_SET)) |
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1072 *(int *) flag_var |= option->var_value; |
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1073 else |
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1074 *(int *) flag_var &= ~option->var_value; |
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1075 if (set_flag_var) |
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1076 *(int *) set_flag_var |= option->var_value; |
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1077 break; |
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1078 |
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1079 case CLVC_STRING: |
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1080 *(const char **) flag_var = arg; |
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1081 if (set_flag_var) |
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1082 *(const char **) set_flag_var = ""; |
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1083 break; |
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1084 |
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1085 case CLVC_ENUM: |
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1086 { |
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1087 const struct cl_enum *e = &cl_enums[option->var_enum]; |
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1088 |
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1089 e->set (flag_var, value); |
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1090 if (set_flag_var) |
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1091 e->set (set_flag_var, 1); |
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1092 } |
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|
1093 break; |
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1094 |
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1095 case CLVC_DEFER: |
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1096 { |
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1097 VEC(cl_deferred_option,heap) *vec |
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1098 = (VEC(cl_deferred_option,heap) *) *(void **) flag_var; |
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1099 cl_deferred_option *p; |
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1100 |
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1101 p = VEC_safe_push (cl_deferred_option, heap, vec, NULL); |
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1102 p->opt_index = opt_index; |
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1103 p->arg = arg; |
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1104 p->value = value; |
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1105 *(void **) flag_var = vec; |
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1106 if (set_flag_var) |
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1107 *(void **) set_flag_var = vec; |
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1108 } |
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1109 break; |
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1110 } |
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1111 |
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1112 if ((diagnostic_t) kind != DK_UNSPECIFIED |
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1113 && dc != NULL) |
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1114 diagnostic_classify_diagnostic (dc, opt_index, (diagnostic_t) kind, loc); |
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1115 } |
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1116 |
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1117 /* Return the address of the flag variable for option OPT_INDEX in |
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1118 options structure OPTS, or NULL if there is no flag variable. */ |
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1119 |
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1120 void * |
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1121 option_flag_var (int opt_index, struct gcc_options *opts) |
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1122 { |
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1123 const struct cl_option *option = &cl_options[opt_index]; |
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1124 |
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1125 if (option->flag_var_offset == (unsigned short) -1) |
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1126 return NULL; |
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1127 return (void *)(((char *) opts) + option->flag_var_offset); |
0 | 1128 } |
67
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1129 |
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1130 /* Return 1 if option OPT_IDX is enabled in OPTS, 0 if it is disabled, |
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1131 or -1 if it isn't a simple on-off switch. */ |
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1132 |
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1133 int |
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1134 option_enabled (int opt_idx, void *opts) |
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1135 { |
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1136 const struct cl_option *option = &(cl_options[opt_idx]); |
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1137 struct gcc_options *optsg = (struct gcc_options *) opts; |
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1138 void *flag_var = option_flag_var (opt_idx, optsg); |
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1139 |
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1140 if (flag_var) |
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1141 switch (option->var_type) |
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1142 { |
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1143 case CLVC_BOOLEAN: |
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1144 return *(int *) flag_var != 0; |
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1145 |
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1146 case CLVC_EQUAL: |
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1147 return *(int *) flag_var == option->var_value; |
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1148 |
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1149 case CLVC_BIT_CLEAR: |
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1150 return (*(int *) flag_var & option->var_value) == 0; |
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1151 |
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1152 case CLVC_BIT_SET: |
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1153 return (*(int *) flag_var & option->var_value) != 0; |
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1154 |
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1155 case CLVC_STRING: |
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1156 case CLVC_ENUM: |
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1157 case CLVC_DEFER: |
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1158 break; |
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1159 } |
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1160 return -1; |
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1161 } |
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1162 |
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1163 /* Fill STATE with the current state of option OPTION in OPTS. Return |
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1164 true if there is some state to store. */ |
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1165 |
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1166 bool |
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1167 get_option_state (struct gcc_options *opts, int option, |
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1168 struct cl_option_state *state) |
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1169 { |
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1170 void *flag_var = option_flag_var (option, opts); |
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1171 |
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1172 if (flag_var == 0) |
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1173 return false; |
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1174 |
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1175 switch (cl_options[option].var_type) |
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1176 { |
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1177 case CLVC_BOOLEAN: |
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1178 case CLVC_EQUAL: |
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1179 state->data = flag_var; |
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1180 state->size = sizeof (int); |
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1181 break; |
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1182 |
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1183 case CLVC_BIT_CLEAR: |
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1184 case CLVC_BIT_SET: |
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1185 state->ch = option_enabled (option, opts); |
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1186 state->data = &state->ch; |
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1187 state->size = 1; |
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1188 break; |
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1189 |
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1190 case CLVC_STRING: |
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1191 state->data = *(const char **) flag_var; |
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1192 if (state->data == 0) |
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1193 state->data = ""; |
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1194 state->size = strlen ((const char *) state->data) + 1; |
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1195 break; |
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1196 |
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1197 case CLVC_ENUM: |
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1198 state->data = flag_var; |
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1199 state->size = cl_enums[cl_options[option].var_enum].var_size; |
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1200 break; |
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1201 |
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1202 case CLVC_DEFER: |
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1203 return false; |
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1204 } |
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1205 return true; |
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1206 } |
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1207 |
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1208 /* Set a warning option OPT_INDEX (language mask LANG_MASK, option |
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1209 handlers HANDLERS) to have diagnostic kind KIND for option |
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1210 structures OPTS and OPTS_SET and diagnostic context DC (possibly |
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1211 NULL), at location LOC (UNKNOWN_LOCATION for -Werror=). If IMPLY, |
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1212 the warning option in question is implied at this point. This is |
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1213 used by -Werror= and #pragma GCC diagnostic. */ |
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1214 |
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1215 void |
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1216 control_warning_option (unsigned int opt_index, int kind, bool imply, |
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1217 location_t loc, unsigned int lang_mask, |
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1218 const struct cl_option_handlers *handlers, |
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1219 struct gcc_options *opts, |
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1220 struct gcc_options *opts_set, |
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1221 diagnostic_context *dc) |
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1222 { |
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1223 if (cl_options[opt_index].alias_target != N_OPTS) |
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1224 opt_index = cl_options[opt_index].alias_target; |
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1225 if (opt_index == OPT_SPECIAL_ignore) |
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1226 return; |
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1227 if (dc) |
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1228 diagnostic_classify_diagnostic (dc, opt_index, (diagnostic_t) kind, loc); |
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1229 if (imply) |
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1230 { |
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1231 /* -Werror=foo implies -Wfoo. */ |
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1232 if (cl_options[opt_index].var_type == CLVC_BOOLEAN) |
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1233 handle_generated_option (opts, opts_set, |
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1234 opt_index, NULL, 1, lang_mask, |
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1235 kind, loc, handlers, dc); |
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1236 } |
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1237 } |