Mercurial > hg > CbC > CbC_gcc
annotate gcc/opt-functions.awk @ 143:76e1cf5455ef
add cbc_gc test
| author | Shinji KONO <kono@ie.u-ryukyu.ac.jp> |
|---|---|
| date | Sun, 23 Dec 2018 19:24:05 +0900 |
| parents | 84e7813d76e9 |
| children | 1830386684a0 |
| rev | line source |
|---|---|
| 131 | 1 # Copyright (C) 2003-2018 Free Software Foundation, Inc. |
| 0 | 2 # Contributed by Kelley Cook, June 2004. |
| 3 # Original code from Neil Booth, May 2003. | |
| 4 # | |
| 5 # This program is free software; you can redistribute it and/or modify it | |
| 6 # under the terms of the GNU General Public License as published by the | |
| 7 # Free Software Foundation; either version 3, or (at your option) any | |
| 8 # later version. | |
| 9 # | |
| 10 # This program is distributed in the hope that it will be useful, | |
| 11 # but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 13 # GNU General Public License for more details. | |
| 14 # | |
| 15 # You should have received a copy of the GNU General Public License | |
| 16 # along with this program; see the file COPYING3. If not see | |
| 17 # <http://www.gnu.org/licenses/>. | |
| 18 | |
| 19 # Some common subroutines for use by opt[ch]-gen.awk. | |
| 20 | |
|
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21 # Define some helpful character classes, for portability. |
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22 BEGIN { |
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23 lower = "abcdefghijklmnopqrstuvwxyz" |
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24 upper = "ABCDEFGHIJKLMNOPQRSTUVWXYZ" |
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25 digit = "0123456789" |
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26 alnum = lower "" upper "" digit |
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27 } |
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28 |
| 0 | 29 # Return nonzero if FLAGS contains a flag matching REGEX. |
| 30 function flag_set_p(regex, flags) | |
| 31 { | |
| 111 | 32 # Ignore the arguments of flags with arguments. |
| 33 gsub ("\\([^)]+\\)", "", flags); | |
| 34 return (" " flags " ") ~ (" " regex " ") | |
| 0 | 35 } |
| 36 | |
| 37 # Return STRING if FLAGS contains a flag matching regexp REGEX, | |
| 38 # otherwise return the empty string. | |
| 39 function test_flag(regex, flags, string) | |
| 40 { | |
| 41 if (flag_set_p(regex, flags)) | |
| 42 return string | |
| 43 return "" | |
| 44 } | |
| 45 | |
| 111 | 46 # Return a field initializer, with trailing comma, for a field that is |
| 47 # 1 if FLAGS contains a flag matching REGEX and 0 otherwise. | |
| 48 function flag_init(regex, flags) | |
| 49 { | |
| 50 if (flag_set_p(regex, flags)) | |
| 51 return "1 /* " regex " */, " | |
| 52 else | |
| 53 return "0, " | |
| 54 } | |
| 55 | |
| 0 | 56 # If FLAGS contains a "NAME(...argument...)" flag, return the value |
| 57 # of the argument. Return the empty string otherwise. | |
| 58 function opt_args(name, flags) | |
| 59 { | |
| 60 flags = " " flags | |
| 61 if (flags !~ " " name "\\(") | |
| 62 return "" | |
| 63 sub(".* " name "\\(", "", flags) | |
| 111 | 64 if (flags ~ "^[{]") |
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65 { |
| 111 | 66 sub ("^[{]", "", flags) |
| 67 sub ("}\\).*", "", flags) | |
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68 } |
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69 else |
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70 sub("\\).*", "", flags) |
| 0 | 71 |
| 72 return flags | |
| 73 } | |
| 74 | |
| 75 # Return the Nth comma-separated element of S. Return the empty string | |
| 76 # if S does not contain N elements. | |
| 77 function nth_arg(n, s) | |
| 78 { | |
| 79 while (n-- > 0) { | |
| 80 if (s !~ ",") | |
| 81 return "" | |
| 82 sub("[^,]*, *", "", s) | |
| 83 } | |
| 84 sub(",.*", "", s) | |
| 85 return s | |
| 86 } | |
| 87 | |
| 88 # Return a bitmask of CL_* values for option flags FLAGS. | |
| 89 function switch_flags (flags) | |
| 90 { | |
| 91 result = "0" | |
| 92 for (j = 0; j < n_langs; j++) { | |
| 93 regex = langs[j] | |
| 94 gsub ( "\\+", "\\+", regex ) | |
| 95 result = result test_flag(regex, flags, " | " macros[j]) | |
| 96 } | |
| 97 result = result \ | |
| 98 test_flag("Common", flags, " | CL_COMMON") \ | |
| 99 test_flag("Target", flags, " | CL_TARGET") \ | |
| 111 | 100 test_flag("PchIgnore", flags, " | CL_PCH_IGNORE") \ |
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101 test_flag("Driver", flags, " | CL_DRIVER") \ |
| 0 | 102 test_flag("Joined", flags, " | CL_JOINED") \ |
| 111 | 103 test_flag("JoinedOrMissing", flags, " | CL_JOINED") \ |
| 0 | 104 test_flag("Separate", flags, " | CL_SEPARATE") \ |
| 105 test_flag("Undocumented", flags, " | CL_UNDOCUMENTED") \ | |
| 111 | 106 test_flag("NoDWARFRecord", flags, " | CL_NO_DWARF_RECORD") \ |
| 0 | 107 test_flag("Warning", flags, " | CL_WARNING") \ |
| 111 | 108 test_flag("(Optimization|PerFunction)", flags, " | CL_OPTIMIZATION") |
| 109 sub( "^0 \\| ", "", result ) | |
| 110 return result | |
| 111 } | |
| 112 | |
| 113 # Return bit-field initializers for option flags FLAGS. | |
| 114 function switch_bit_fields (flags) | |
| 115 { | |
| 131 | 116 uinteger_flag = "" |
| 111 | 117 vn = var_name(flags); |
| 118 if (host_wide_int[vn] == "yes") | |
| 119 hwi = "Host_Wide_Int" | |
| 131 | 120 else if (flag_set_p("Host_Wide_Int", flags)) { |
| 121 hwi = "Host_Wide_Int" | |
| 122 uinteger_flag = flag_init("UInteger", flags) | |
| 123 } | |
| 111 | 124 else |
| 125 hwi = "" | |
| 126 result = "" | |
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127 sep_args = opt_args("Args", flags) |
| 111 | 128 if (sep_args == "") |
| 129 sep_args = 0 | |
| 130 else | |
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131 sep_args-- |
| 111 | 132 result = result sep_args ", " |
| 133 | |
| 131 | 134 if (uinteger_flag == "") |
| 135 uinteger_flag = flag_init("UInteger", flags) | |
| 136 | |
| 137 hwi_flag = flag_init("Host_Wide_Int", hwi) | |
| 138 byte_size_flag = flag_init("ByteSize", flags) | |
| 139 | |
| 140 if (substr(byte_size_flag, 1, 1) != "0" \ | |
| 141 && substr(uinteger_flag, 1, 1) == "0" \ | |
| 142 && substr(hwi_flag, 1, 1) == "0") | |
| 143 print "#error only UInteger amd Host_Wide_Int options can specify a ByteSize suffix" | |
| 144 | |
| 145 # The following flags need to be in the same order as | |
| 146 # the corresponding members of struct cl_option defined | |
| 147 # in gcc/opts.h. | |
| 111 | 148 result = result \ |
| 149 flag_init("SeparateAlias", flags) \ | |
| 150 flag_init("NegativeAlias", flags) \ | |
| 151 flag_init("NoDriverArg", flags) \ | |
| 152 flag_init("RejectDriver", flags) \ | |
| 153 flag_init("RejectNegative", flags) \ | |
| 154 flag_init("JoinedOrMissing", flags) \ | |
| 131 | 155 uinteger_flag \ |
| 156 hwi_flag \ | |
| 111 | 157 flag_init("ToLower", flags) \ |
| 131 | 158 flag_init("Report", flags) \ |
| 159 byte_size_flag | |
| 111 | 160 |
| 161 sub(", $", "", result) | |
| 0 | 162 return result |
| 163 } | |
| 164 | |
| 165 # If FLAGS includes a Var flag, return the name of the variable it specifies. | |
| 166 # Return the empty string otherwise. | |
| 167 function var_name(flags) | |
| 168 { | |
| 169 return nth_arg(0, opt_args("Var", flags)) | |
| 170 } | |
| 171 | |
| 111 | 172 # Return the name of the variable if FLAGS has a HOST_WIDE_INT variable. |
| 173 # Return the empty string otherwise. | |
| 174 function host_wide_int_var_name(flags) | |
| 175 { | |
| 176 split (flags, array, "[ \t]+") | |
| 177 if (array[1] == "HOST_WIDE_INT") | |
| 178 return array[2] | |
| 179 else | |
| 180 return "" | |
| 181 } | |
| 182 | |
| 0 | 183 # Return true if the option described by FLAGS has a globally-visible state. |
| 184 function global_state_p(flags) | |
| 185 { | |
| 186 return (var_name(flags) != "" \ | |
| 187 || opt_args("Mask", flags) != "" \ | |
| 188 || opt_args("InverseMask", flags) != "") | |
| 189 } | |
| 190 | |
| 191 # Return true if the option described by FLAGS must have some state | |
| 192 # associated with it. | |
| 193 function needs_state_p(flags) | |
| 194 { | |
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195 return (flag_set_p("Target", flags) \ |
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196 && !flag_set_p("Alias.*", flags) \ |
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197 && !flag_set_p("Ignore", flags)) |
| 0 | 198 } |
| 199 | |
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200 # If FLAGS describes an option that needs state without a public |
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201 # variable name, return the name of that field, minus the initial |
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202 # "x_", otherwise return "". NAME is the name of the option. |
| 0 | 203 function static_var(name, flags) |
| 204 { | |
| 205 if (global_state_p(flags) || !needs_state_p(flags)) | |
| 206 return "" | |
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207 gsub ("[^" alnum "]", "_", name) |
| 0 | 208 return "VAR_" name |
| 209 } | |
| 210 | |
| 211 # Return the type of variable that should be associated with the given flags. | |
| 212 function var_type(flags) | |
| 213 { | |
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214 if (flag_set_p("Defer", flags)) |
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215 return "void *" |
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216 else if (flag_set_p("Enum.*", flags)) { |
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217 en = opt_args("Enum", flags); |
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218 return enum_type[en] " " |
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219 } |
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220 else if (!flag_set_p("Joined.*", flags) && !flag_set_p("Separate", flags)) |
| 0 | 221 return "int " |
| 131 | 222 else if (flag_set_p("Host_Wide_Int", flags)) |
| 223 return "HOST_WIDE_INT " | |
| 0 | 224 else if (flag_set_p("UInteger", flags)) |
| 225 return "int " | |
| 226 else | |
| 227 return "const char *" | |
| 228 } | |
| 229 | |
| 230 # Return the type of variable that should be associated with the given flags | |
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231 # for use within a structure. Simple variables are changed to signed char |
| 0 | 232 # type instead of int to save space. |
| 233 function var_type_struct(flags) | |
| 234 { | |
| 131 | 235 if (flag_set_p("UInteger", flags)) { |
| 236 if (host_wide_int[var_name(flags)] == "yes") | |
| 237 return "HOST_WIDE_INT "; | |
| 238 if (flag_set_p("ByteSize", flags)) | |
| 239 return "HOST_WIDE_INT " | |
| 240 return "int " | |
| 241 } | |
| 111 | 242 else if (flag_set_p("Enum.*", flags)) { |
| 243 en = opt_args("Enum", flags); | |
| 244 return enum_type[en] " " | |
| 245 } | |
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246 else if (!flag_set_p("Joined.*", flags) && !flag_set_p("Separate", flags)) { |
| 111 | 247 if (flag_set_p(".*Mask.*", flags)) { |
| 248 if (host_wide_int[var_name(flags)] == "yes") | |
| 249 return "HOST_WIDE_INT " | |
| 250 else | |
| 131 | 251 return "/* - */ int " |
| 111 | 252 } |
| 0 | 253 else |
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254 return "signed char " |
| 0 | 255 } |
| 256 else | |
| 257 return "const char *" | |
| 258 } | |
| 259 | |
| 260 # Given that an option has flags FLAGS, return an initializer for the | |
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261 # "var_enum", "var_type" and "var_value" fields of its cl_options[] entry. |
| 0 | 262 function var_set(flags) |
| 263 { | |
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264 if (flag_set_p("Defer", flags)) |
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265 return "0, CLVC_DEFER, 0" |
| 0 | 266 s = nth_arg(1, opt_args("Var", flags)) |
| 267 if (s != "") | |
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268 return "0, CLVC_EQUAL, " s |
| 0 | 269 s = opt_args("Mask", flags); |
| 270 if (s != "") { | |
| 271 vn = var_name(flags); | |
| 272 if (vn) | |
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273 return "0, CLVC_BIT_SET, OPTION_MASK_" s |
| 0 | 274 else |
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275 return "0, CLVC_BIT_SET, MASK_" s |
| 0 | 276 } |
| 277 s = nth_arg(0, opt_args("InverseMask", flags)); | |
| 278 if (s != "") { | |
| 279 vn = var_name(flags); | |
| 280 if (vn) | |
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281 return "0, CLVC_BIT_CLEAR, OPTION_MASK_" s |
| 0 | 282 else |
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283 return "0, CLVC_BIT_CLEAR, MASK_" s |
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284 } |
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285 if (flag_set_p("Enum.*", flags)) { |
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286 en = opt_args("Enum", flags); |
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287 return enum_index[en] ", CLVC_ENUM, 0" |
| 0 | 288 } |
| 289 if (var_type(flags) == "const char *") | |
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290 return "0, CLVC_STRING, 0" |
| 131 | 291 if (flag_set_p("ByteSize", flags)) |
| 292 return "0, CLVC_SIZE, 0" | |
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293 return "0, CLVC_BOOLEAN, 0" |
| 0 | 294 } |
| 295 | |
| 296 # Given that an option called NAME has flags FLAGS, return an initializer | |
| 297 # for the "flag_var" field of its cl_options[] entry. | |
| 298 function var_ref(name, flags) | |
| 299 { | |
| 300 name = var_name(flags) static_var(name, flags) | |
| 301 if (name != "") | |
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302 return "offsetof (struct gcc_options, x_" name ")" |
| 0 | 303 if (opt_args("Mask", flags) != "") |
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304 return "offsetof (struct gcc_options, x_target_flags)" |
| 0 | 305 if (opt_args("InverseMask", flags) != "") |
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306 return "offsetof (struct gcc_options, x_target_flags)" |
| 111 | 307 return "(unsigned short) -1" |
| 0 | 308 } |
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309 |
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310 # Given the option called NAME return a sanitized version of its name. |
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311 function opt_sanitized_name(name) |
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312 { |
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313 gsub ("[^" alnum "]", "_", name) |
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314 return name |
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315 } |
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316 |
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317 # Given the option called NAME return the appropriate enum for it. |
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318 function opt_enum(name) |
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319 { |
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320 return "OPT_" opt_sanitized_name(name) |
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321 } |
| 111 | 322 |
| 323 # Given the language called NAME return a sanitized version of its name. | |
| 324 function lang_sanitized_name(name) | |
| 325 { | |
| 326 gsub( "[^" alnum "_]", "X", name ) | |
| 327 return name | |
| 328 } | |
| 329 | |
| 330 # Search for a valid var_name among all OPTS equal to option NAME. | |
| 331 # If not found, return "". | |
| 332 function search_var_name(name, opt_numbers, opts, flags, n_opts) | |
| 333 { | |
| 334 opt_var_name = var_name(flags[opt_numbers[name]]); | |
| 335 if (opt_var_name != "") { | |
| 336 return opt_var_name; | |
| 337 } | |
| 338 for (k = 0; k < n_opts; k++) { | |
| 339 if (opts[k] == name && var_name(flags[k]) != "") { | |
| 340 return var_name(flags[k]); | |
| 341 } | |
| 342 } | |
| 343 return "" | |
| 344 } | |
| 345 | |
| 346 function integer_range_info(range_option, init, option) | |
| 347 { | |
| 348 if (range_option != "") { | |
| 349 start = nth_arg(0, range_option); | |
| 350 end = nth_arg(1, range_option); | |
| 351 if (init != "" && init != "-1" && (init < start || init > end)) | |
| 352 print "#error initial value " init " of '" option "' must be in range [" start "," end "]" | |
| 353 return start ", " end | |
| 354 } | |
| 355 else | |
| 356 return "-1, -1" | |
| 357 } | |
| 358 | |
| 359 # Handle LangEnabledBy(ENABLED_BY_LANGS, ENABLEDBY_NAME, ENABLEDBY_POSARG, | |
| 360 # ENABLEDBY_NEGARG). This function does not return anything. | |
| 361 function lang_enabled_by(enabledby_langs, enabledby_name, enabledby_posarg, enabledby_negarg) | |
| 362 { | |
| 363 n_enabledby_arg_langs = split(enabledby_langs, enabledby_arg_langs, " "); | |
| 364 if (enabledby_posarg != "" && enabledby_negarg != "") { | |
| 365 with_args = "," enabledby_posarg "," enabledby_negarg | |
| 366 } else if (enabledby_posarg == "" && enabledby_negarg == "") { | |
| 367 with_args = "" | |
| 368 } else { | |
| 369 print "#error " opts[i] " LangEnabledBy("enabledby_langs","enabledby_name", " \ | |
| 370 enabledby_posarg", " enabledby_negargs \ | |
| 371 ") with three arguments, it should have either 2 or 4" | |
| 372 } | |
| 373 | |
| 374 n_enabledby_array = split(enabledby_name, enabledby_array, " \\|\\| "); | |
| 375 for (k = 1; k <= n_enabledby_array; k++) { | |
| 376 enabledby_index = opt_numbers[enabledby_array[k]]; | |
| 377 if (enabledby_index == "") { | |
| 378 print "#error " opts[i] " LangEnabledBy("enabledby_langs","enabledby_name", " \ | |
| 379 enabledby_posarg", " enabledby_negargs"), unknown option '" enabledby_name "'" | |
| 380 } else { | |
| 381 for (j = 1; j <= n_enabledby_arg_langs; j++) { | |
| 382 lang_name = lang_sanitized_name(enabledby_arg_langs[j]); | |
| 383 lang_index = lang_numbers[enabledby_arg_langs[j]]; | |
| 384 if (enables[lang_name,enabledby_array[k]] == "") { | |
| 385 enabledby[lang_name,n_enabledby_lang[lang_index]] = enabledby_array[k]; | |
| 386 n_enabledby_lang[lang_index]++; | |
| 387 } | |
| 388 enables[lang_name,enabledby_array[k]] \ | |
| 389 = enables[lang_name,enabledby_array[k]] opts[i] with_args ";"; | |
| 390 } | |
| 391 } | |
| 392 } | |
| 393 } |