Mercurial > hg > CbC > CbC_gcc
annotate gcc/toplev.c @ 127:4c56639505ff
fix function.c and add CbC-example Makefile
| author | mir3636 |
|---|---|
| date | Wed, 11 Apr 2018 18:46:58 +0900 |
| parents | 04ced10e8804 |
| children | 84e7813d76e9 |
| rev | line source |
|---|---|
| 0 | 1 /* Top level of GCC compilers (cc1, cc1plus, etc.) |
| 111 | 2 Copyright (C) 1987-2017 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 /* This is the top level of cc1/c++. | |
| 21 It parses command args, opens files, invokes the various passes | |
| 22 in the proper order, and counts the time used by each. | |
| 23 Error messages and low-level interface to malloc also handled here. */ | |
| 24 | |
| 25 #include "config.h" | |
| 26 #include "system.h" | |
| 27 #include "coretypes.h" | |
| 111 | 28 #include "backend.h" |
| 29 #include "target.h" | |
| 30 #include "rtl.h" | |
| 0 | 31 #include "tree.h" |
| 111 | 32 #include "gimple.h" |
| 33 #include "alloc-pool.h" | |
| 34 #include "timevar.h" | |
| 35 #include "memmodel.h" | |
| 36 #include "tm_p.h" | |
| 37 #include "optabs-libfuncs.h" | |
| 38 #include "insn-config.h" | |
| 39 #include "ira.h" | |
| 40 #include "recog.h" | |
| 41 #include "cgraph.h" | |
| 42 #include "coverage.h" | |
| 43 #include "diagnostic.h" | |
| 44 #include "varasm.h" | |
| 45 #include "tree-inline.h" | |
|
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46 #include "realmpfr.h" /* For GMP/MPFR/MPC versions, in print_version. */ |
| 0 | 47 #include "version.h" |
| 48 #include "flags.h" | |
| 49 #include "insn-attr.h" | |
| 50 #include "output.h" | |
| 51 #include "toplev.h" | |
| 52 #include "expr.h" | |
| 53 #include "intl.h" | |
|
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54 #include "tree-diagnostic.h" |
| 0 | 55 #include "params.h" |
| 56 #include "reload.h" | |
| 111 | 57 #include "lra.h" |
| 0 | 58 #include "dwarf2asm.h" |
| 59 #include "debug.h" | |
| 111 | 60 #include "common/common-target.h" |
| 0 | 61 #include "langhooks.h" |
| 111 | 62 #include "cfgloop.h" /* for init_set_costs */ |
| 0 | 63 #include "hosthooks.h" |
| 64 #include "opts.h" | |
|
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65 #include "opts-diagnostic.h" |
| 111 | 66 #include "stringpool.h" |
| 67 #include "attribs.h" | |
| 68 #include "asan.h" | |
| 69 #include "tsan.h" | |
| 70 #include "plugin.h" | |
| 71 #include "context.h" | |
| 72 #include "pass_manager.h" | |
| 73 #include "auto-profile.h" | |
| 74 #include "dwarf2out.h" | |
| 75 #include "ipa-reference.h" | |
| 76 #include "symbol-summary.h" | |
| 77 #include "tree-vrp.h" | |
| 78 #include "ipa-prop.h" | |
| 79 #include "gcse.h" | |
| 80 #include "tree-chkp.h" | |
| 81 #include "omp-offload.h" | |
| 82 #include "hsa-common.h" | |
| 83 #include "edit-context.h" | |
| 0 | 84 #include "tree-pass.h" |
| 111 | 85 #include "dumpfile.h" |
| 0 | 86 |
| 87 #if defined(DBX_DEBUGGING_INFO) || defined(XCOFF_DEBUGGING_INFO) | |
| 88 #include "dbxout.h" | |
| 89 #endif | |
| 90 | |
| 91 #include "sdbout.h" | |
| 92 | |
| 93 #ifdef XCOFF_DEBUGGING_INFO | |
| 111 | 94 #include "xcoffout.h" /* Needed for external data declarations. */ |
| 0 | 95 #endif |
| 96 | |
| 111 | 97 #include "selftest.h" |
| 98 | |
| 99 #ifdef HAVE_isl | |
| 100 #include <isl/version.h> | |
| 101 #endif | |
| 102 | |
| 103 static void general_init (const char *, bool); | |
| 104 static void do_compile (); | |
| 0 | 105 static void process_options (void); |
| 106 static void backend_init (void); | |
| 107 static int lang_dependent_init (const char *); | |
| 108 static void init_asm_output (const char *); | |
|
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109 static void finalize (bool); |
| 0 | 110 |
| 111 static void crash_signal (int) ATTRIBUTE_NORETURN; | |
| 112 static void compile_file (void); | |
| 113 | |
| 114 /* True if we don't need a backend (e.g. preprocessing only). */ | |
| 115 static bool no_backend; | |
| 116 | |
| 117 /* Length of line when printing switch values. */ | |
| 118 #define MAX_LINE 75 | |
| 119 | |
|
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120 /* Decoded options, and number of such options. */ |
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121 struct cl_decoded_option *save_decoded_options; |
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122 unsigned int save_decoded_options_count; |
| 0 | 123 |
| 124 /* Used to enable -fvar-tracking, -fweb and -frename-registers according | |
|
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125 to optimize in process_options (). */ |
| 0 | 126 #define AUTODETECT_VALUE 2 |
| 127 | |
| 128 /* Debug hooks - dependent upon command line options. */ | |
| 129 | |
| 130 const struct gcc_debug_hooks *debug_hooks; | |
| 131 | |
| 132 /* The FUNCTION_DECL for the function currently being compiled, | |
| 133 or 0 if between functions. */ | |
| 134 tree current_function_decl; | |
| 135 | |
| 136 /* Set to the FUNC_BEGIN label of the current function, or NULL | |
| 137 if none. */ | |
| 138 const char * current_function_func_begin_label; | |
| 139 | |
| 140 /* A random sequence of characters, unless overridden by user. */ | |
| 141 static const char *flag_random_seed; | |
| 142 | |
| 143 /* A local time stamp derived from the time of compilation. It will be | |
| 144 zero if the system cannot provide a time. It will be -1u, if the | |
| 145 user has specified a particular random seed. */ | |
| 146 unsigned local_tick; | |
| 147 | |
| 111 | 148 /* Random number for this compilation */ |
| 149 HOST_WIDE_INT random_seed; | |
| 0 | 150 |
| 111 | 151 /* -f flags. */ |
| 0 | 152 |
| 153 /* When non-NULL, indicates that whenever space is allocated on the | |
| 154 stack, the resulting stack pointer must not pass this | |
| 155 address---that is, for stacks that grow downward, the stack pointer | |
| 156 must always be greater than or equal to this address; for stacks | |
| 157 that grow upward, the stack pointer must be less than this address. | |
| 158 At present, the rtx may be either a REG or a SYMBOL_REF, although | |
| 159 the support provided depends on the backend. */ | |
| 160 rtx stack_limit_rtx; | |
| 161 | |
|
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162 struct target_flag_state default_target_flag_state; |
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163 #if SWITCHABLE_TARGET |
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164 struct target_flag_state *this_target_flag_state = &default_target_flag_state; |
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165 #else |
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166 #define this_target_flag_state (&default_target_flag_state) |
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167 #endif |
| 0 | 168 |
| 169 /* The user symbol prefix after having resolved same. */ | |
| 170 const char *user_label_prefix; | |
| 171 | |
| 172 /* Output files for assembler code (real compiler output) | |
| 173 and debugging dumps. */ | |
| 174 | |
| 175 FILE *asm_out_file; | |
| 176 FILE *aux_info_file; | |
|
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177 FILE *stack_usage_file = NULL; |
| 0 | 178 |
| 179 /* The current working directory of a translation. It's generally the | |
| 180 directory from which compilation was initiated, but a preprocessed | |
| 181 file may specify the original directory in which it was | |
| 182 created. */ | |
| 183 | |
| 184 static const char *src_pwd; | |
| 185 | |
| 186 /* Initialize src_pwd with the given string, and return true. If it | |
| 187 was already initialized, return false. As a special case, it may | |
| 188 be called with a NULL argument to test whether src_pwd has NOT been | |
| 189 initialized yet. */ | |
| 190 | |
| 191 bool | |
| 192 set_src_pwd (const char *pwd) | |
| 193 { | |
| 194 if (src_pwd) | |
| 195 { | |
| 196 if (strcmp (src_pwd, pwd) == 0) | |
| 197 return true; | |
| 198 else | |
| 199 return false; | |
| 200 } | |
| 201 | |
| 202 src_pwd = xstrdup (pwd); | |
| 203 return true; | |
| 204 } | |
| 205 | |
| 206 /* Return the directory from which the translation unit was initiated, | |
| 207 in case set_src_pwd() was not called before to assign it a | |
| 208 different value. */ | |
| 209 | |
| 210 const char * | |
| 211 get_src_pwd (void) | |
| 212 { | |
| 213 if (! src_pwd) | |
| 214 { | |
| 215 src_pwd = getpwd (); | |
| 216 if (!src_pwd) | |
| 217 src_pwd = "."; | |
| 218 } | |
| 219 | |
| 220 return src_pwd; | |
| 221 } | |
| 222 | |
| 223 /* Called when the start of a function definition is parsed, | |
| 224 this function prints on stderr the name of the function. */ | |
| 225 void | |
| 226 announce_function (tree decl) | |
| 227 { | |
| 228 if (!quiet_flag) | |
| 229 { | |
| 230 if (rtl_dump_and_exit) | |
|
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231 fprintf (stderr, "%s ", |
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232 identifier_to_locale (IDENTIFIER_POINTER (DECL_NAME (decl)))); |
| 0 | 233 else |
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234 fprintf (stderr, " %s", |
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235 identifier_to_locale (lang_hooks.decl_printable_name (decl, 2))); |
| 0 | 236 fflush (stderr); |
| 237 pp_needs_newline (global_dc->printer) = true; | |
| 238 diagnostic_set_last_function (global_dc, (diagnostic_info *) NULL); | |
| 239 } | |
| 240 } | |
| 241 | |
| 242 /* Initialize local_tick with the time of day, or -1 if | |
| 243 flag_random_seed is set. */ | |
| 244 | |
| 245 static void | |
| 246 init_local_tick (void) | |
| 247 { | |
| 248 if (!flag_random_seed) | |
| 249 { | |
| 250 #ifdef HAVE_GETTIMEOFDAY | |
| 251 { | |
| 252 struct timeval tv; | |
| 253 | |
| 254 gettimeofday (&tv, NULL); | |
| 111 | 255 local_tick = (unsigned) tv.tv_sec * 1000 + tv.tv_usec / 1000; |
| 0 | 256 } |
| 257 #else | |
| 258 { | |
| 259 time_t now = time (NULL); | |
| 260 | |
| 261 if (now != (time_t)-1) | |
| 262 local_tick = (unsigned) now; | |
| 263 } | |
| 264 #endif | |
| 265 } | |
| 266 else | |
| 267 local_tick = -1; | |
| 268 } | |
| 269 | |
| 111 | 270 /* Obtain the random_seed. Unless NOINIT, initialize it if |
| 0 | 271 it's not provided in the command line. */ |
| 272 | |
| 111 | 273 HOST_WIDE_INT |
| 0 | 274 get_random_seed (bool noinit) |
| 275 { | |
| 111 | 276 if (!random_seed && !noinit) |
| 277 { | |
| 278 int fd = open ("/dev/urandom", O_RDONLY); | |
| 279 if (fd >= 0) | |
| 280 { | |
| 281 if (read (fd, &random_seed, sizeof (random_seed)) | |
| 282 != sizeof (random_seed)) | |
| 283 random_seed = 0; | |
| 284 close (fd); | |
| 285 } | |
| 286 if (!random_seed) | |
| 287 random_seed = local_tick ^ getpid (); | |
| 288 } | |
| 289 return random_seed; | |
| 0 | 290 } |
| 291 | |
| 111 | 292 /* Set flag_random_seed to VAL, and if non-null, reinitialize random_seed. */ |
| 0 | 293 |
| 111 | 294 void |
| 0 | 295 set_random_seed (const char *val) |
| 296 { | |
| 297 flag_random_seed = val; | |
| 111 | 298 if (flag_random_seed) |
| 299 { | |
| 300 char *endp; | |
| 301 | |
| 302 /* When the driver passed in a hex number don't crc it again */ | |
| 303 random_seed = strtoul (flag_random_seed, &endp, 0); | |
| 304 if (!(endp > flag_random_seed && *endp == 0)) | |
| 305 random_seed = crc32_string (0, flag_random_seed); | |
| 306 } | |
| 0 | 307 } |
| 308 | |
| 309 /* Handler for fatal signals, such as SIGSEGV. These are transformed | |
| 310 into ICE messages, which is much more user friendly. In case the | |
| 311 error printer crashes, reset the signal to prevent infinite recursion. */ | |
| 312 | |
| 313 static void | |
| 314 crash_signal (int signo) | |
| 315 { | |
| 316 signal (signo, SIG_DFL); | |
| 317 | |
| 318 /* If we crashed while processing an ASM statement, then be a little more | |
| 319 graceful. It's most likely the user's fault. */ | |
| 320 if (this_is_asm_operands) | |
| 321 { | |
| 322 output_operand_lossage ("unrecoverable error"); | |
| 323 exit (FATAL_EXIT_CODE); | |
| 324 } | |
| 325 | |
| 326 internal_error ("%s", strsignal (signo)); | |
| 327 } | |
| 328 | |
| 329 /* A subroutine of wrapup_global_declarations. We've come to the end of | |
| 330 the compilation unit. All deferred variables should be undeferred, | |
| 331 and all incomplete decls should be finalized. */ | |
| 332 | |
| 333 void | |
| 334 wrapup_global_declaration_1 (tree decl) | |
| 335 { | |
| 336 /* We're not deferring this any longer. Assignment is conditional to | |
| 337 avoid needlessly dirtying PCH pages. */ | |
| 338 if (CODE_CONTAINS_STRUCT (TREE_CODE (decl), TS_DECL_WITH_VIS) | |
| 339 && DECL_DEFER_OUTPUT (decl) != 0) | |
| 340 DECL_DEFER_OUTPUT (decl) = 0; | |
| 341 | |
| 111 | 342 if (VAR_P (decl) && DECL_SIZE (decl) == 0) |
| 0 | 343 lang_hooks.finish_incomplete_decl (decl); |
| 344 } | |
| 345 | |
| 346 /* A subroutine of wrapup_global_declarations. Decide whether or not DECL | |
| 347 needs to be output. Return true if it is output. */ | |
| 348 | |
| 349 bool | |
| 350 wrapup_global_declaration_2 (tree decl) | |
| 351 { | |
| 111 | 352 if (TREE_ASM_WRITTEN (decl) || DECL_EXTERNAL (decl) |
| 353 || (VAR_P (decl) && DECL_HAS_VALUE_EXPR_P (decl))) | |
| 0 | 354 return false; |
| 355 | |
| 356 /* Don't write out static consts, unless we still need them. | |
| 357 | |
| 358 We also keep static consts if not optimizing (for debugging), | |
| 359 unless the user specified -fno-keep-static-consts. | |
| 360 ??? They might be better written into the debug information. | |
| 361 This is possible when using DWARF. | |
| 362 | |
| 363 A language processor that wants static constants to be always | |
| 364 written out (even if it is not used) is responsible for | |
| 365 calling rest_of_decl_compilation itself. E.g. the C front-end | |
| 366 calls rest_of_decl_compilation from finish_decl. | |
| 367 One motivation for this is that is conventional in some | |
| 368 environments to write things like: | |
| 369 static const char rcsid[] = "... version string ..."; | |
| 370 intending to force the string to be in the executable. | |
| 371 | |
| 372 A language processor that would prefer to have unneeded | |
| 373 static constants "optimized away" would just defer writing | |
| 374 them out until here. E.g. C++ does this, because static | |
| 375 constants are often defined in header files. | |
| 376 | |
| 377 ??? A tempting alternative (for both C and C++) would be | |
| 378 to force a constant to be written if and only if it is | |
| 379 defined in a main file, as opposed to an include file. */ | |
| 380 | |
| 111 | 381 if (VAR_P (decl) && TREE_STATIC (decl)) |
| 0 | 382 { |
| 111 | 383 varpool_node *node; |
| 0 | 384 bool needed = true; |
| 111 | 385 node = varpool_node::get (decl); |
| 0 | 386 |
|
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387 if (!node && flag_ltrans) |
| 0 | 388 needed = false; |
| 111 | 389 else if (node && node->definition) |
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390 needed = false; |
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391 else if (node && node->alias) |
| 0 | 392 needed = false; |
| 111 | 393 else if (!symtab->global_info_ready |
| 0 | 394 && (TREE_USED (decl) |
| 395 || TREE_USED (DECL_ASSEMBLER_NAME (decl)))) | |
| 396 /* needed */; | |
| 111 | 397 else if (node && node->analyzed) |
| 0 | 398 /* needed */; |
| 399 else if (DECL_COMDAT (decl)) | |
| 400 needed = false; | |
| 401 else if (TREE_READONLY (decl) && !TREE_PUBLIC (decl) | |
| 402 && (optimize || !flag_keep_static_consts | |
| 403 || DECL_ARTIFICIAL (decl))) | |
| 404 needed = false; | |
| 405 | |
| 406 if (needed) | |
| 407 { | |
| 408 rest_of_decl_compilation (decl, 1, 1); | |
| 409 return true; | |
| 410 } | |
| 411 } | |
| 412 | |
| 413 return false; | |
| 414 } | |
| 415 | |
| 416 /* Do any final processing required for the declarations in VEC, of | |
| 417 which there are LEN. We write out inline functions and variables | |
| 418 that have been deferred until this point, but which are required. | |
| 419 Returns nonzero if anything was put out. */ | |
| 420 | |
| 421 bool | |
| 422 wrapup_global_declarations (tree *vec, int len) | |
| 423 { | |
| 424 bool reconsider, output_something = false; | |
| 425 int i; | |
| 426 | |
| 427 for (i = 0; i < len; i++) | |
| 428 wrapup_global_declaration_1 (vec[i]); | |
| 429 | |
| 430 /* Now emit any global variables or functions that we have been | |
| 431 putting off. We need to loop in case one of the things emitted | |
| 432 here references another one which comes earlier in the list. */ | |
| 433 do | |
| 434 { | |
| 435 reconsider = false; | |
| 436 for (i = 0; i < len; i++) | |
| 437 reconsider |= wrapup_global_declaration_2 (vec[i]); | |
| 438 if (reconsider) | |
| 439 output_something = true; | |
| 440 } | |
| 441 while (reconsider); | |
| 442 | |
| 443 return output_something; | |
| 444 } | |
| 445 | |
| 446 /* Compile an entire translation unit. Write a file of assembly | |
| 447 output and various debugging dumps. */ | |
| 448 | |
| 449 static void | |
| 450 compile_file (void) | |
| 451 { | |
| 111 | 452 timevar_start (TV_PHASE_PARSING); |
| 453 timevar_push (TV_PARSE_GLOBAL); | |
| 0 | 454 |
| 111 | 455 /* Parse entire file and generate initial debug information. */ |
| 456 lang_hooks.parse_file (); | |
| 0 | 457 |
| 111 | 458 timevar_pop (TV_PARSE_GLOBAL); |
| 459 timevar_stop (TV_PHASE_PARSING); | |
| 0 | 460 |
| 111 | 461 if (flag_dump_locations) |
| 462 dump_location_info (stderr); | |
| 0 | 463 |
| 464 /* Compilation is now finished except for writing | |
| 465 what's left of the symbol table output. */ | |
| 466 | |
|
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467 if (flag_syntax_only || flag_wpa) |
| 0 | 468 return; |
| 111 | 469 |
| 470 /* Reset maximum_field_alignment, it can be adjusted by #pragma pack | |
| 471 and this shouldn't influence any types built by the middle-end | |
| 472 from now on (like gcov_info_type). */ | |
| 473 maximum_field_alignment = initial_max_fld_align * BITS_PER_UNIT; | |
| 0 | 474 |
| 475 ggc_protect_identifiers = false; | |
| 476 | |
| 111 | 477 /* Run the actual compilation process. */ |
| 478 if (!in_lto_p) | |
| 479 { | |
| 480 timevar_start (TV_PHASE_OPT_GEN); | |
| 481 symtab->finalize_compilation_unit (); | |
| 482 timevar_stop (TV_PHASE_OPT_GEN); | |
| 483 } | |
| 484 | |
| 485 /* Perform any post compilation-proper parser cleanups and | |
| 486 processing. This is currently only needed for the C++ parser, | |
| 487 which can be hopefully cleaned up so this hook is no longer | |
| 488 necessary. */ | |
| 489 if (lang_hooks.decls.post_compilation_parsing_cleanups) | |
| 490 lang_hooks.decls.post_compilation_parsing_cleanups (); | |
| 0 | 491 |
|
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492 if (seen_error ()) |
| 0 | 493 return; |
| 494 | |
| 111 | 495 timevar_start (TV_PHASE_LATE_ASM); |
| 0 | 496 |
| 111 | 497 /* Compilation unit is finalized. When producing non-fat LTO object, we are |
| 498 basically finished. */ | |
| 499 if (in_lto_p || !flag_lto || flag_fat_lto_objects) | |
| 500 { | |
| 501 /* File-scope initialization for AddressSanitizer. */ | |
| 502 if (flag_sanitize & SANITIZE_ADDRESS) | |
| 503 asan_finish_file (); | |
| 0 | 504 |
| 111 | 505 if (flag_sanitize & SANITIZE_THREAD) |
| 506 tsan_finish_file (); | |
| 507 | |
| 508 if (flag_check_pointer_bounds) | |
| 509 chkp_finish_file (); | |
| 0 | 510 |
| 111 | 511 omp_finish_file (); |
| 512 | |
| 513 hsa_output_brig (); | |
| 0 | 514 |
| 111 | 515 output_shared_constant_pool (); |
| 516 output_object_blocks (); | |
| 517 finish_tm_clone_pairs (); | |
|
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518 |
| 111 | 519 /* Write out any pending weak symbol declarations. */ |
| 520 weak_finish (); | |
| 0 | 521 |
| 111 | 522 /* This must be at the end before unwind and debug info. |
| 523 Some target ports emit PIC setup thunks here. */ | |
| 524 targetm.asm_out.code_end (); | |
| 525 | |
| 526 /* Do dbx symbols. */ | |
| 527 timevar_push (TV_SYMOUT); | |
| 0 | 528 |
| 111 | 529 #if defined DWARF2_DEBUGGING_INFO || defined DWARF2_UNWIND_INFO |
| 530 if (dwarf2out_do_frame ()) | |
| 531 dwarf2out_frame_finish (); | |
| 532 #endif | |
| 0 | 533 |
| 111 | 534 (*debug_hooks->finish) (main_input_filename); |
| 535 timevar_pop (TV_SYMOUT); | |
| 0 | 536 |
| 111 | 537 /* Output some stuff at end of file if nec. */ |
| 538 | |
| 539 dw2_output_indirect_constants (); | |
| 0 | 540 |
| 111 | 541 /* Flush any pending external directives. */ |
| 542 process_pending_assemble_externals (); | |
| 543 } | |
| 0 | 544 |
|
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545 /* Emit LTO marker if LTO info has been previously emitted. This is |
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546 used by collect2 to determine whether an object file contains IL. |
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547 We used to emit an undefined reference here, but this produces |
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548 link errors if an object file with IL is stored into a shared |
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549 library without invoking lto1. */ |
| 111 | 550 if (flag_generate_lto || flag_generate_offload) |
|
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551 { |
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552 #if defined ASM_OUTPUT_ALIGNED_DECL_COMMON |
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553 ASM_OUTPUT_ALIGNED_DECL_COMMON (asm_out_file, NULL_TREE, |
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554 "__gnu_lto_v1", |
| 111 | 555 HOST_WIDE_INT_1U, 8); |
|
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556 #elif defined ASM_OUTPUT_ALIGNED_COMMON |
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557 ASM_OUTPUT_ALIGNED_COMMON (asm_out_file, "__gnu_lto_v1", |
| 111 | 558 HOST_WIDE_INT_1U, 8); |
|
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559 #else |
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560 ASM_OUTPUT_COMMON (asm_out_file, "__gnu_lto_v1", |
| 111 | 561 HOST_WIDE_INT_1U, |
| 562 HOST_WIDE_INT_1U); | |
| 563 #endif | |
| 564 } | |
| 565 | |
| 566 /* Let linker plugin know that this is a slim object and must be LTOed | |
| 567 even when user did not ask for it. */ | |
| 568 if (flag_generate_lto && !flag_fat_lto_objects) | |
| 569 { | |
| 570 #if defined ASM_OUTPUT_ALIGNED_DECL_COMMON | |
| 571 ASM_OUTPUT_ALIGNED_DECL_COMMON (asm_out_file, NULL_TREE, "__gnu_lto_slim", | |
| 572 HOST_WIDE_INT_1U, 8); | |
| 573 #elif defined ASM_OUTPUT_ALIGNED_COMMON | |
| 574 ASM_OUTPUT_ALIGNED_COMMON (asm_out_file, "__gnu_lto_slim", | |
| 575 HOST_WIDE_INT_1U, 8); | |
| 576 #else | |
| 577 ASM_OUTPUT_COMMON (asm_out_file, "__gnu_lto_slim", | |
| 578 HOST_WIDE_INT_1U, | |
| 579 HOST_WIDE_INT_1U); | |
|
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580 #endif |
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581 } |
|
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582 |
| 0 | 583 /* Attach a special .ident directive to the end of the file to identify |
| 584 the version of GCC which compiled this code. The format of the .ident | |
| 585 string is patterned after the ones produced by native SVR4 compilers. */ | |
| 586 if (!flag_no_ident) | |
| 587 { | |
| 588 const char *pkg_version = "(GNU) "; | |
| 111 | 589 char *ident_str; |
| 0 | 590 |
| 591 if (strcmp ("(GCC) ", pkgversion_string)) | |
| 592 pkg_version = pkgversion_string; | |
| 111 | 593 |
| 594 ident_str = ACONCAT (("GCC: ", pkg_version, version_string, NULL)); | |
| 595 targetm.asm_out.output_ident (ident_str); | |
| 0 | 596 } |
| 111 | 597 |
| 598 /* Auto profile finalization. */ | |
| 599 if (flag_auto_profile) | |
| 600 end_auto_profile (); | |
| 0 | 601 |
|
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602 /* Invoke registered plugin callbacks. */ |
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603 invoke_plugin_callbacks (PLUGIN_FINISH_UNIT, NULL); |
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604 |
| 0 | 605 /* This must be at the end. Some target ports emit end of file directives |
| 606 into the assembly file here, and hence we can not output anything to the | |
| 607 assembly file after this point. */ | |
| 608 targetm.asm_out.file_end (); | |
| 111 | 609 |
| 610 timevar_stop (TV_PHASE_LATE_ASM); | |
| 0 | 611 } |
| 612 | |
| 613 /* Print version information to FILE. | |
| 614 Each line begins with INDENT (for the case where FILE is the | |
| 111 | 615 assembler output file). |
| 616 | |
| 617 If SHOW_GLOBAL_STATE is true (for cc1 etc), we are within the compiler | |
| 618 proper and can print pertinent state (e.g. params and plugins). | |
| 619 | |
| 620 If SHOW_GLOBAL_STATE is false (for use by libgccjit), we are outside the | |
| 621 compiler, and we don't hold the mutex on the compiler's global state: | |
| 622 we can't print params and plugins, since they might not be initialized, | |
| 623 or might be being manipulated by a compile running in another | |
| 624 thread. */ | |
| 0 | 625 |
| 626 void | |
| 111 | 627 print_version (FILE *file, const char *indent, bool show_global_state) |
| 0 | 628 { |
| 629 static const char fmt1[] = | |
| 630 #ifdef __GNUC__ | |
| 631 N_("%s%s%s %sversion %s (%s)\n%s\tcompiled by GNU C version %s, ") | |
| 632 #else | |
| 633 N_("%s%s%s %sversion %s (%s) compiled by CC, ") | |
| 634 #endif | |
| 635 ; | |
| 636 static const char fmt2[] = | |
| 111 | 637 N_("GMP version %s, MPFR version %s, MPC version %s, isl version %s\n"); |
| 0 | 638 static const char fmt3[] = |
| 639 N_("%s%swarning: %s header version %s differs from library version %s.\n"); | |
| 640 static const char fmt4[] = | |
| 641 N_("%s%sGGC heuristics: --param ggc-min-expand=%d --param ggc-min-heapsize=%d\n"); | |
| 642 #ifndef __VERSION__ | |
| 643 #define __VERSION__ "[?]" | |
| 644 #endif | |
| 645 fprintf (file, | |
| 646 file == stderr ? _(fmt1) : fmt1, | |
| 647 indent, *indent != 0 ? " " : "", | |
| 648 lang_hooks.name, pkgversion_string, version_string, TARGET_NAME, | |
| 649 indent, __VERSION__); | |
| 650 | |
| 651 /* We need to stringify the GMP macro values. Ugh, gmp_version has | |
|
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652 two string formats, "i.j.k" and "i.j" when k is zero. As of |
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653 gmp-4.3.0, GMP always uses the 3 number format. */ |
| 0 | 654 #define GCC_GMP_STRINGIFY_VERSION3(X) #X |
| 111 | 655 #define GCC_GMP_STRINGIFY_VERSION2(X) GCC_GMP_STRINGIFY_VERSION3 (X) |
|
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656 #define GCC_GMP_VERSION_NUM(X,Y,Z) (((X) << 16L) | ((Y) << 8) | (Z)) |
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657 #define GCC_GMP_VERSION \ |
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658 GCC_GMP_VERSION_NUM(__GNU_MP_VERSION, __GNU_MP_VERSION_MINOR, __GNU_MP_VERSION_PATCHLEVEL) |
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659 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,3,0) && __GNU_MP_VERSION_PATCHLEVEL == 0 |
| 111 | 660 #define GCC_GMP_STRINGIFY_VERSION \ |
| 661 GCC_GMP_STRINGIFY_VERSION2 (__GNU_MP_VERSION) "." \ | |
| 662 GCC_GMP_STRINGIFY_VERSION2 (__GNU_MP_VERSION_MINOR) | |
| 0 | 663 #else |
| 111 | 664 #define GCC_GMP_STRINGIFY_VERSION \ |
| 665 GCC_GMP_STRINGIFY_VERSION2 (__GNU_MP_VERSION) "." \ | |
| 666 GCC_GMP_STRINGIFY_VERSION2 (__GNU_MP_VERSION_MINOR) "." \ | |
| 667 GCC_GMP_STRINGIFY_VERSION2 (__GNU_MP_VERSION_PATCHLEVEL) | |
| 0 | 668 #endif |
| 669 fprintf (file, | |
| 670 file == stderr ? _(fmt2) : fmt2, | |
| 111 | 671 GCC_GMP_STRINGIFY_VERSION, MPFR_VERSION_STRING, MPC_VERSION_STRING, |
| 672 #ifndef HAVE_isl | |
| 673 "none" | |
| 674 #else | |
| 675 isl_version () | |
| 676 #endif | |
| 677 ); | |
| 0 | 678 if (strcmp (GCC_GMP_STRINGIFY_VERSION, gmp_version)) |
| 679 fprintf (file, | |
| 680 file == stderr ? _(fmt3) : fmt3, | |
| 681 indent, *indent != 0 ? " " : "", | |
| 682 "GMP", GCC_GMP_STRINGIFY_VERSION, gmp_version); | |
| 683 if (strcmp (MPFR_VERSION_STRING, mpfr_get_version ())) | |
| 684 fprintf (file, | |
| 685 file == stderr ? _(fmt3) : fmt3, | |
| 686 indent, *indent != 0 ? " " : "", | |
| 687 "MPFR", MPFR_VERSION_STRING, mpfr_get_version ()); | |
|
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688 if (strcmp (MPC_VERSION_STRING, mpc_get_version ())) |
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689 fprintf (file, |
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690 file == stderr ? _(fmt3) : fmt3, |
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691 indent, *indent != 0 ? " " : "", |
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692 "MPC", MPC_VERSION_STRING, mpc_get_version ()); |
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693 |
| 111 | 694 if (show_global_state) |
| 695 { | |
| 696 fprintf (file, | |
| 697 file == stderr ? _(fmt4) : fmt4, | |
| 698 indent, *indent != 0 ? " " : "", | |
| 699 PARAM_VALUE (GGC_MIN_EXPAND), PARAM_VALUE (GGC_MIN_HEAPSIZE)); | |
| 700 | |
| 701 print_plugins_versions (file, indent); | |
| 702 } | |
| 0 | 703 } |
| 704 | |
| 705 static int | |
| 706 print_to_asm_out_file (print_switch_type type, const char * text) | |
| 707 { | |
| 708 bool prepend_sep = true; | |
| 709 | |
| 710 switch (type) | |
| 711 { | |
| 712 case SWITCH_TYPE_LINE_END: | |
| 713 putc ('\n', asm_out_file); | |
| 714 return 1; | |
| 715 | |
| 716 case SWITCH_TYPE_LINE_START: | |
| 717 fputs (ASM_COMMENT_START, asm_out_file); | |
| 718 return strlen (ASM_COMMENT_START); | |
| 719 | |
| 720 case SWITCH_TYPE_DESCRIPTIVE: | |
| 721 if (ASM_COMMENT_START[0] == 0) | |
| 722 prepend_sep = false; | |
| 111 | 723 /* FALLTHRU */ |
| 0 | 724 case SWITCH_TYPE_PASSED: |
| 725 case SWITCH_TYPE_ENABLED: | |
| 726 if (prepend_sep) | |
| 727 fputc (' ', asm_out_file); | |
|
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728 fputs (text, asm_out_file); |
| 0 | 729 /* No need to return the length here as |
| 730 print_single_switch has already done it. */ | |
| 731 return 0; | |
| 732 | |
| 733 default: | |
| 734 return -1; | |
| 735 } | |
| 736 } | |
| 737 | |
| 738 static int | |
| 739 print_to_stderr (print_switch_type type, const char * text) | |
| 740 { | |
| 741 switch (type) | |
| 742 { | |
| 743 case SWITCH_TYPE_LINE_END: | |
| 744 putc ('\n', stderr); | |
| 745 return 1; | |
| 746 | |
| 747 case SWITCH_TYPE_LINE_START: | |
| 748 return 0; | |
|
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749 |
| 0 | 750 case SWITCH_TYPE_PASSED: |
| 751 case SWITCH_TYPE_ENABLED: | |
| 752 fputc (' ', stderr); | |
| 111 | 753 /* FALLTHRU */ |
| 0 | 754 |
| 755 case SWITCH_TYPE_DESCRIPTIVE: | |
|
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756 fputs (text, stderr); |
| 0 | 757 /* No need to return the length here as |
| 758 print_single_switch has already done it. */ | |
| 759 return 0; | |
| 760 | |
| 761 default: | |
| 762 return -1; | |
| 763 } | |
| 764 } | |
| 765 | |
| 766 /* Print an option value and return the adjusted position in the line. | |
| 767 ??? print_fn doesn't handle errors, eg disk full; presumably other | |
| 768 code will catch a disk full though. */ | |
| 769 | |
| 770 static int | |
| 771 print_single_switch (print_switch_fn_type print_fn, | |
| 772 int pos, | |
| 773 print_switch_type type, | |
| 774 const char * text) | |
| 775 { | |
| 776 /* The ultrix fprintf returns 0 on success, so compute the result | |
| 777 we want here since we need it for the following test. The +1 | |
| 778 is for the separator character that will probably be emitted. */ | |
| 779 int len = strlen (text) + 1; | |
| 780 | |
| 781 if (pos != 0 | |
| 782 && pos + len > MAX_LINE) | |
| 783 { | |
| 784 print_fn (SWITCH_TYPE_LINE_END, NULL); | |
| 785 pos = 0; | |
| 786 } | |
| 787 | |
| 788 if (pos == 0) | |
| 789 pos += print_fn (SWITCH_TYPE_LINE_START, NULL); | |
| 790 | |
| 791 print_fn (type, text); | |
| 792 return pos + len; | |
| 793 } | |
| 794 | |
| 795 /* Print active target switches using PRINT_FN. | |
| 796 POS is the current cursor position and MAX is the size of a "line". | |
| 797 Each line begins with INDENT and ends with TERM. | |
| 798 Each switch is separated from the next by SEP. */ | |
| 799 | |
| 800 static void | |
| 801 print_switch_values (print_switch_fn_type print_fn) | |
| 802 { | |
| 803 int pos = 0; | |
| 804 size_t j; | |
| 805 | |
| 806 /* Print the options as passed. */ | |
| 807 pos = print_single_switch (print_fn, pos, | |
| 808 SWITCH_TYPE_DESCRIPTIVE, _("options passed: ")); | |
| 809 | |
|
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810 for (j = 1; j < save_decoded_options_count; j++) |
| 0 | 811 { |
|
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812 switch (save_decoded_options[j].opt_index) |
| 0 | 813 { |
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814 case OPT_o: |
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815 case OPT_d: |
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816 case OPT_dumpbase: |
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817 case OPT_dumpdir: |
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818 case OPT_auxbase: |
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819 case OPT_quiet: |
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820 case OPT_version: |
| 0 | 821 /* Ignore these. */ |
|
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822 continue; |
| 0 | 823 } |
| 824 | |
|
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825 pos = print_single_switch (print_fn, pos, SWITCH_TYPE_PASSED, |
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826 save_decoded_options[j].orig_option_with_args_text); |
| 0 | 827 } |
| 828 | |
| 829 if (pos > 0) | |
| 830 print_fn (SWITCH_TYPE_LINE_END, NULL); | |
| 831 | |
| 832 /* Print the -f and -m options that have been enabled. | |
| 833 We don't handle language specific options but printing argv | |
| 834 should suffice. */ | |
| 835 pos = print_single_switch (print_fn, 0, | |
| 836 SWITCH_TYPE_DESCRIPTIVE, _("options enabled: ")); | |
| 837 | |
| 838 for (j = 0; j < cl_options_count; j++) | |
| 111 | 839 if (cl_options[j].cl_report |
|
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840 && option_enabled (j, &global_options) > 0) |
| 0 | 841 pos = print_single_switch (print_fn, pos, |
| 842 SWITCH_TYPE_ENABLED, cl_options[j].opt_text); | |
| 843 | |
| 844 print_fn (SWITCH_TYPE_LINE_END, NULL); | |
| 845 } | |
| 846 | |
| 847 /* Open assembly code output file. Do this even if -fsyntax-only is | |
| 848 on, because then the driver will have provided the name of a | |
| 849 temporary file or bit bucket for us. NAME is the file specified on | |
| 850 the command line, possibly NULL. */ | |
| 851 static void | |
| 852 init_asm_output (const char *name) | |
| 853 { | |
| 854 if (name == NULL && asm_file_name == 0) | |
| 855 asm_out_file = stdout; | |
| 856 else | |
| 857 { | |
| 858 if (asm_file_name == 0) | |
| 859 { | |
| 860 int len = strlen (dump_base_name); | |
| 861 char *dumpname = XNEWVEC (char, len + 6); | |
| 862 | |
| 863 memcpy (dumpname, dump_base_name, len + 1); | |
| 864 strip_off_ending (dumpname, len); | |
| 865 strcat (dumpname, ".s"); | |
| 866 asm_file_name = dumpname; | |
| 867 } | |
| 868 if (!strcmp (asm_file_name, "-")) | |
| 869 asm_out_file = stdout; | |
| 111 | 870 else if (!canonical_filename_eq (asm_file_name, name) |
| 871 || !strcmp (asm_file_name, HOST_BIT_BUCKET)) | |
| 872 asm_out_file = fopen (asm_file_name, "w"); | |
| 0 | 873 else |
| 111 | 874 /* Use UNKOWN_LOCATION to prevent gcc from printing the first |
| 875 line in the current file. */ | |
| 876 fatal_error (UNKNOWN_LOCATION, | |
| 877 "input file %qs is the same as output file", | |
| 878 asm_file_name); | |
| 0 | 879 if (asm_out_file == 0) |
| 111 | 880 fatal_error (UNKNOWN_LOCATION, |
| 881 "can%'t open %qs for writing: %m", asm_file_name); | |
| 0 | 882 } |
| 883 | |
| 884 if (!flag_syntax_only) | |
| 885 { | |
| 886 targetm.asm_out.file_start (); | |
| 887 | |
| 888 if (flag_record_gcc_switches) | |
| 889 { | |
| 890 if (targetm.asm_out.record_gcc_switches) | |
| 891 { | |
| 892 /* Let the target know that we are about to start recording. */ | |
| 893 targetm.asm_out.record_gcc_switches (SWITCH_TYPE_DESCRIPTIVE, | |
| 894 NULL); | |
| 895 /* Now record the switches. */ | |
| 896 print_switch_values (targetm.asm_out.record_gcc_switches); | |
| 897 /* Let the target know that the recording is over. */ | |
| 898 targetm.asm_out.record_gcc_switches (SWITCH_TYPE_DESCRIPTIVE, | |
| 899 NULL); | |
| 900 } | |
| 901 else | |
| 111 | 902 inform (UNKNOWN_LOCATION, |
| 903 "-frecord-gcc-switches is not supported by " | |
| 904 "the current target"); | |
| 0 | 905 } |
| 906 | |
| 907 if (flag_verbose_asm) | |
| 908 { | |
| 909 /* Print the list of switches in effect | |
| 910 into the assembler file as comments. */ | |
| 111 | 911 print_version (asm_out_file, ASM_COMMENT_START, true); |
| 0 | 912 print_switch_values (print_to_asm_out_file); |
|
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913 putc ('\n', asm_out_file); |
| 0 | 914 } |
| 915 } | |
| 916 } | |
| 917 | |
| 918 /* A helper function; used as the reallocator function for cpp's line | |
| 919 table. */ | |
| 920 static void * | |
| 921 realloc_for_line_map (void *ptr, size_t len) | |
| 922 { | |
| 111 | 923 return ggc_realloc (ptr, len); |
|
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924 } |
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925 |
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926 /* A helper function: used as the allocator function for |
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927 identifier_to_locale. */ |
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928 static void * |
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929 alloc_for_identifier_to_locale (size_t len) |
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930 { |
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931 return ggc_alloc_atomic (len); |
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932 } |
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933 |
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934 /* Output stack usage information. */ |
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935 void |
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936 output_stack_usage (void) |
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937 { |
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938 static bool warning_issued = false; |
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939 enum stack_usage_kind_type { STATIC = 0, DYNAMIC, DYNAMIC_BOUNDED }; |
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940 const char *stack_usage_kind_str[] = { |
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941 "static", |
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942 "dynamic", |
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943 "dynamic,bounded" |
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944 }; |
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945 HOST_WIDE_INT stack_usage = current_function_static_stack_size; |
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946 enum stack_usage_kind_type stack_usage_kind; |
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947 |
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948 if (stack_usage < 0) |
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949 { |
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950 if (!warning_issued) |
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951 { |
| 111 | 952 warning (0, "stack usage computation not supported for this target"); |
|
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953 warning_issued = true; |
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954 } |
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955 return; |
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956 } |
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957 |
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958 stack_usage_kind = STATIC; |
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959 |
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960 /* Add the maximum amount of space pushed onto the stack. */ |
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961 if (current_function_pushed_stack_size > 0) |
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962 { |
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963 stack_usage += current_function_pushed_stack_size; |
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964 stack_usage_kind = DYNAMIC_BOUNDED; |
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965 } |
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966 |
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967 /* Now on to the tricky part: dynamic stack allocation. */ |
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968 if (current_function_allocates_dynamic_stack_space) |
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969 { |
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970 if (current_function_has_unbounded_dynamic_stack_size) |
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971 stack_usage_kind = DYNAMIC; |
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972 else |
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973 stack_usage_kind = DYNAMIC_BOUNDED; |
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974 |
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975 /* Add the size even in the unbounded case, this can't hurt. */ |
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976 stack_usage += current_function_dynamic_stack_size; |
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977 } |
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978 |
| 111 | 979 if (flag_stack_usage) |
| 980 { | |
| 981 expanded_location loc | |
| 982 = expand_location (DECL_SOURCE_LOCATION (current_function_decl)); | |
| 983 /* We don't want to print the full qualified name because it can be long, | |
| 984 so we strip the scope prefix, but we may need to deal with the suffix | |
| 985 created by the compiler. */ | |
| 986 const char *suffix | |
| 987 = strchr (IDENTIFIER_POINTER (DECL_NAME (current_function_decl)), '.'); | |
| 988 const char *name | |
| 989 = lang_hooks.decl_printable_name (current_function_decl, 2); | |
| 990 if (suffix) | |
| 991 { | |
| 992 const char *dot = strchr (name, '.'); | |
| 993 while (dot && strcasecmp (dot, suffix) != 0) | |
| 994 { | |
| 995 name = dot + 1; | |
| 996 dot = strchr (name, '.'); | |
| 997 } | |
| 998 } | |
| 999 else | |
| 1000 { | |
| 1001 const char *dot = strrchr (name, '.'); | |
| 1002 if (dot) | |
| 1003 name = dot + 1; | |
| 1004 } | |
|
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1005 |
| 111 | 1006 fprintf (stack_usage_file, |
| 1007 "%s:%d:%d:%s\t" HOST_WIDE_INT_PRINT_DEC"\t%s\n", | |
| 1008 lbasename (loc.file), | |
| 1009 loc.line, | |
| 1010 loc.column, | |
| 1011 name, | |
| 1012 stack_usage, | |
| 1013 stack_usage_kind_str[stack_usage_kind]); | |
| 1014 } | |
| 1015 | |
| 1016 if (warn_stack_usage >= 0) | |
| 1017 { | |
| 1018 const location_t loc = DECL_SOURCE_LOCATION (current_function_decl); | |
|
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1019 |
| 111 | 1020 if (stack_usage_kind == DYNAMIC) |
| 1021 warning_at (loc, OPT_Wstack_usage_, "stack usage might be unbounded"); | |
| 1022 else if (stack_usage > warn_stack_usage) | |
| 1023 { | |
| 1024 if (stack_usage_kind == DYNAMIC_BOUNDED) | |
| 1025 warning_at (loc, | |
| 1026 OPT_Wstack_usage_, "stack usage might be %wd bytes", | |
| 1027 stack_usage); | |
| 1028 else | |
| 1029 warning_at (loc, OPT_Wstack_usage_, "stack usage is %wd bytes", | |
| 1030 stack_usage); | |
| 1031 } | |
| 1032 } | |
|
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1033 } |
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1034 |
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1035 /* Open an auxiliary output file. */ |
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1036 static FILE * |
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1037 open_auxiliary_file (const char *ext) |
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1038 { |
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1039 char *filename; |
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1040 FILE *file; |
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1041 |
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1042 filename = concat (aux_base_name, ".", ext, NULL); |
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1043 file = fopen (filename, "w"); |
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1044 if (!file) |
| 111 | 1045 fatal_error (input_location, "can%'t open %s for writing: %m", filename); |
|
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1046 free (filename); |
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1047 return file; |
| 0 | 1048 } |
| 1049 | |
| 111 | 1050 /* Alternative diagnostics callback for reentered ICE reporting. */ |
| 1051 | |
| 1052 static void | |
| 1053 internal_error_reentered (diagnostic_context *, const char *, va_list *) | |
| 1054 { | |
| 1055 /* Flush the dump file if emergency_dump_function itself caused an ICE. */ | |
| 1056 if (dump_file) | |
| 1057 fflush (dump_file); | |
| 1058 } | |
| 1059 | |
| 1060 /* Auxiliary callback for the diagnostics code. */ | |
| 1061 | |
| 1062 static void | |
| 1063 internal_error_function (diagnostic_context *, const char *, va_list *) | |
| 1064 { | |
| 1065 global_dc->internal_error = internal_error_reentered; | |
| 1066 warn_if_plugins (); | |
| 1067 emergency_dump_function (); | |
| 1068 } | |
| 1069 | |
| 0 | 1070 /* Initialization of the front end environment, before command line |
| 1071 options are parsed. Signal handlers, internationalization etc. | |
| 1072 ARGV0 is main's argv[0]. */ | |
| 1073 static void | |
| 111 | 1074 general_init (const char *argv0, bool init_signals) |
| 0 | 1075 { |
| 1076 const char *p; | |
| 1077 | |
| 1078 p = argv0 + strlen (argv0); | |
| 1079 while (p != argv0 && !IS_DIR_SEPARATOR (p[-1])) | |
| 1080 --p; | |
| 1081 progname = p; | |
| 1082 | |
| 1083 xmalloc_set_program_name (progname); | |
| 1084 | |
| 1085 hex_init (); | |
| 1086 | |
| 1087 /* Unlock the stdio streams. */ | |
| 1088 unlock_std_streams (); | |
| 1089 | |
| 1090 gcc_init_libintl (); | |
| 1091 | |
|
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1092 identifier_to_locale_alloc = alloc_for_identifier_to_locale; |
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1093 identifier_to_locale_free = ggc_free; |
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1094 |
| 0 | 1095 /* Initialize the diagnostics reporting machinery, so option parsing |
| 1096 can give warnings and errors. */ | |
|
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1097 diagnostic_initialize (global_dc, N_OPTS); |
| 0 | 1098 /* Set a default printer. Language specific initializations will |
| 1099 override it later. */ | |
| 111 | 1100 tree_diagnostics_defaults (global_dc); |
| 1101 | |
| 1102 global_dc->show_caret | |
| 1103 = global_options_init.x_flag_diagnostics_show_caret; | |
|
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1104 global_dc->show_option_requested |
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1105 = global_options_init.x_flag_diagnostics_show_option; |
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1106 global_dc->show_column |
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1107 = global_options_init.x_flag_show_column; |
| 111 | 1108 global_dc->internal_error = internal_error_function; |
|
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1109 global_dc->option_enabled = option_enabled; |
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1110 global_dc->option_state = &global_options; |
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1111 global_dc->option_name = option_name; |
| 0 | 1112 |
| 111 | 1113 if (init_signals) |
| 1114 { | |
| 1115 /* Trap fatal signals, e.g. SIGSEGV, and convert them to ICE messages. */ | |
| 0 | 1116 #ifdef SIGSEGV |
| 111 | 1117 signal (SIGSEGV, crash_signal); |
| 0 | 1118 #endif |
| 1119 #ifdef SIGILL | |
| 111 | 1120 signal (SIGILL, crash_signal); |
| 0 | 1121 #endif |
| 1122 #ifdef SIGBUS | |
| 111 | 1123 signal (SIGBUS, crash_signal); |
| 0 | 1124 #endif |
| 1125 #ifdef SIGABRT | |
| 111 | 1126 signal (SIGABRT, crash_signal); |
| 0 | 1127 #endif |
| 1128 #if defined SIGIOT && (!defined SIGABRT || SIGABRT != SIGIOT) | |
| 111 | 1129 signal (SIGIOT, crash_signal); |
| 0 | 1130 #endif |
| 1131 #ifdef SIGFPE | |
| 111 | 1132 signal (SIGFPE, crash_signal); |
| 0 | 1133 #endif |
| 1134 | |
| 111 | 1135 /* Other host-specific signal setup. */ |
| 1136 (*host_hooks.extra_signals)(); | |
| 1137 } | |
| 0 | 1138 |
| 1139 /* Initialize the garbage-collector, string pools and tree type hash | |
| 1140 table. */ | |
| 1141 init_ggc (); | |
| 1142 init_stringpool (); | |
| 111 | 1143 input_location = UNKNOWN_LOCATION; |
| 1144 line_table = ggc_alloc<line_maps> (); | |
| 1145 linemap_init (line_table, BUILTINS_LOCATION); | |
| 0 | 1146 line_table->reallocator = realloc_for_line_map; |
| 111 | 1147 line_table->round_alloc_size = ggc_round_alloc_size; |
| 1148 line_table->default_range_bits = 5; | |
| 0 | 1149 init_ttree (); |
| 1150 | |
| 1151 /* Initialize register usage now so switches may override. */ | |
| 1152 init_reg_sets (); | |
| 1153 | |
| 1154 /* Register the language-independent parameters. */ | |
| 111 | 1155 global_init_params (); |
| 1156 | |
| 1157 /* This must be done after global_init_params but before argument | |
| 1158 processing. */ | |
| 1159 init_ggc_heuristics (); | |
| 1160 | |
| 1161 /* Create the singleton holder for global state. This creates the | |
| 1162 dump manager. */ | |
| 1163 g = new gcc::context (); | |
| 0 | 1164 |
| 111 | 1165 /* Allow languages and middle-end to register their dumps before the |
| 1166 optimization passes. */ | |
| 1167 g->get_dumps ()->register_dumps (); | |
| 1168 | |
| 1169 /* Create the passes. */ | |
| 1170 g->set_passes (new gcc::pass_manager (g)); | |
| 1171 | |
| 1172 symtab = new (ggc_cleared_alloc <symbol_table> ()) symbol_table (); | |
| 1173 | |
| 0 | 1174 statistics_early_init (); |
|
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1175 finish_params (); |
| 0 | 1176 } |
| 1177 | |
| 1178 /* Return true if the current target supports -fsection-anchors. */ | |
| 1179 | |
| 1180 static bool | |
| 1181 target_supports_section_anchors_p (void) | |
| 1182 { | |
| 1183 if (targetm.min_anchor_offset == 0 && targetm.max_anchor_offset == 0) | |
| 1184 return false; | |
| 1185 | |
| 1186 if (targetm.asm_out.output_anchor == NULL) | |
| 1187 return false; | |
| 1188 | |
| 1189 return true; | |
| 1190 } | |
| 1191 | |
| 1192 /* Default the align_* variables to 1 if they're still unset, and | |
| 1193 set up the align_*_log variables. */ | |
| 1194 static void | |
| 1195 init_alignments (void) | |
| 1196 { | |
| 1197 if (align_loops <= 0) | |
| 1198 align_loops = 1; | |
| 1199 if (align_loops_max_skip > align_loops) | |
| 1200 align_loops_max_skip = align_loops - 1; | |
| 1201 align_loops_log = floor_log2 (align_loops * 2 - 1); | |
| 1202 if (align_jumps <= 0) | |
| 1203 align_jumps = 1; | |
| 1204 if (align_jumps_max_skip > align_jumps) | |
| 1205 align_jumps_max_skip = align_jumps - 1; | |
| 1206 align_jumps_log = floor_log2 (align_jumps * 2 - 1); | |
| 1207 if (align_labels <= 0) | |
| 1208 align_labels = 1; | |
| 1209 align_labels_log = floor_log2 (align_labels * 2 - 1); | |
| 1210 if (align_labels_max_skip > align_labels) | |
| 1211 align_labels_max_skip = align_labels - 1; | |
| 1212 if (align_functions <= 0) | |
| 1213 align_functions = 1; | |
| 1214 align_functions_log = floor_log2 (align_functions * 2 - 1); | |
| 1215 } | |
| 1216 | |
| 1217 /* Process the options that have been parsed. */ | |
| 1218 static void | |
| 1219 process_options (void) | |
| 1220 { | |
| 1221 /* Just in case lang_hooks.post_options ends up calling a debug_hook. | |
| 1222 This can happen with incorrect pre-processed input. */ | |
| 1223 debug_hooks = &do_nothing_debug_hooks; | |
| 1224 | |
|
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1225 maximum_field_alignment = initial_max_fld_align * BITS_PER_UNIT; |
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1226 |
| 0 | 1227 /* Allow the front end to perform consistency checks and do further |
| 1228 initialization based on the command line options. This hook also | |
| 1229 sets the original filename if appropriate (e.g. foo.i -> foo.c) | |
| 1230 so we can correctly initialize debug output. */ | |
| 1231 no_backend = lang_hooks.post_options (&main_input_filename); | |
| 1232 | |
| 1233 /* Some machines may reject certain combinations of options. */ | |
| 111 | 1234 location_t saved_location = input_location; |
| 1235 input_location = UNKNOWN_LOCATION; | |
|
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1236 targetm.target_option.override (); |
| 111 | 1237 input_location = saved_location; |
| 1238 | |
| 1239 if (flag_diagnostics_generate_patch) | |
| 1240 global_dc->edit_context_ptr = new edit_context (); | |
| 0 | 1241 |
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1242 /* Avoid any informative notes in the second run of -fcompare-debug. */ |
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1243 if (flag_compare_debug) |
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1244 diagnostic_inhibit_notes (global_dc); |
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1245 |
| 0 | 1246 if (flag_section_anchors && !target_supports_section_anchors_p ()) |
| 1247 { | |
| 111 | 1248 warning_at (UNKNOWN_LOCATION, OPT_fsection_anchors, |
| 1249 "this target does not support %qs", | |
| 1250 "-fsection-anchors"); | |
| 0 | 1251 flag_section_anchors = 0; |
| 1252 } | |
| 1253 | |
| 1254 if (flag_short_enums == 2) | |
| 1255 flag_short_enums = targetm.default_short_enums (); | |
| 1256 | |
| 1257 /* Set aux_base_name if not already set. */ | |
| 1258 if (aux_base_name) | |
| 1259 ; | |
| 1260 else if (main_input_filename) | |
| 1261 { | |
| 1262 char *name = xstrdup (lbasename (main_input_filename)); | |
| 1263 | |
| 1264 strip_off_ending (name, strlen (name)); | |
| 1265 aux_base_name = name; | |
| 1266 } | |
| 1267 else | |
| 1268 aux_base_name = "gccaux"; | |
| 1269 | |
| 111 | 1270 #ifndef HAVE_isl |
| 0 | 1271 if (flag_graphite |
| 111 | 1272 || flag_loop_nest_optimize |
|
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1273 || flag_graphite_identity |
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1274 || flag_loop_parallelize_all) |
| 111 | 1275 sorry ("Graphite loop optimizations cannot be used (isl is not available) " |
| 1276 "(-fgraphite, -fgraphite-identity, -floop-nest-optimize, " | |
| 1277 "-floop-parallelize-all)"); | |
| 0 | 1278 #endif |
| 1279 | |
| 111 | 1280 if (flag_cf_protection != CF_NONE |
| 1281 && !(flag_cf_protection & CF_SET)) | |
| 1282 { | |
| 1283 if (flag_cf_protection == CF_FULL) | |
| 1284 { | |
| 1285 error_at (UNKNOWN_LOCATION, | |
| 1286 "%<-fcf-protection=full%> is not supported for this " | |
| 1287 "target"); | |
| 1288 flag_cf_protection = CF_NONE; | |
| 1289 } | |
| 1290 if (flag_cf_protection == CF_BRANCH) | |
| 1291 { | |
| 1292 error_at (UNKNOWN_LOCATION, | |
| 1293 "%<-fcf-protection=branch%> is not supported for this " | |
| 1294 "target"); | |
| 1295 flag_cf_protection = CF_NONE; | |
| 1296 } | |
| 1297 if (flag_cf_protection == CF_RETURN) | |
| 1298 { | |
| 1299 error_at (UNKNOWN_LOCATION, | |
| 1300 "%<-fcf-protection=return%> is not supported for this " | |
| 1301 "target"); | |
| 1302 flag_cf_protection = CF_NONE; | |
| 1303 } | |
| 1304 } | |
| 1305 | |
| 1306 if (flag_check_pointer_bounds) | |
| 1307 { | |
| 1308 if (targetm.chkp_bound_mode () == VOIDmode) | |
| 1309 { | |
| 1310 error_at (UNKNOWN_LOCATION, | |
| 1311 "%<-fcheck-pointer-bounds%> is not supported for this " | |
| 1312 "target"); | |
| 1313 flag_check_pointer_bounds = 0; | |
| 1314 } | |
| 1315 | |
| 1316 if (flag_sanitize & SANITIZE_BOUNDS_STRICT) | |
| 1317 { | |
| 1318 error_at (UNKNOWN_LOCATION, | |
| 1319 "%<-fcheck-pointer-bounds%> is not supported with " | |
| 1320 "%<-fsanitize=bounds-strict%>"); | |
| 1321 flag_check_pointer_bounds = 0; | |
| 1322 } | |
| 1323 else if (flag_sanitize & SANITIZE_BOUNDS) | |
| 1324 { | |
| 1325 error_at (UNKNOWN_LOCATION, | |
| 1326 "%<-fcheck-pointer-bounds%> is not supported with " | |
| 1327 "%<-fsanitize=bounds%>"); | |
| 1328 flag_check_pointer_bounds = 0; | |
| 1329 } | |
| 1330 | |
| 1331 if (flag_sanitize & SANITIZE_ADDRESS) | |
| 1332 { | |
| 1333 error_at (UNKNOWN_LOCATION, | |
| 1334 "%<-fcheck-pointer-bounds%> is not supported with " | |
| 1335 "Address Sanitizer"); | |
| 1336 flag_check_pointer_bounds = 0; | |
| 1337 } | |
| 1338 | |
| 1339 if (flag_sanitize & SANITIZE_THREAD) | |
| 1340 { | |
| 1341 error_at (UNKNOWN_LOCATION, | |
| 1342 "%<-fcheck-pointer-bounds%> is not supported with " | |
| 1343 "Thread Sanitizer"); | |
| 1344 | |
| 1345 flag_check_pointer_bounds = 0; | |
| 1346 } | |
| 1347 } | |
| 1348 | |
| 1349 /* One region RA really helps to decrease the code size. */ | |
| 1350 if (flag_ira_region == IRA_REGION_AUTODETECT) | |
| 1351 flag_ira_region | |
| 1352 = optimize_size || !optimize ? IRA_REGION_ONE : IRA_REGION_MIXED; | |
| 1353 | |
| 1354 if (!abi_version_at_least (2)) | |
| 1355 { | |
| 1356 /* -fabi-version=1 support was removed after GCC 4.9. */ | |
| 1357 error_at (UNKNOWN_LOCATION, | |
| 1358 "%<-fabi-version=1%> is no longer supported"); | |
| 1359 flag_abi_version = 2; | |
| 1360 } | |
| 1361 | |
| 0 | 1362 /* Unrolling all loops implies that standard loop unrolling must also |
| 1363 be done. */ | |
| 1364 if (flag_unroll_all_loops) | |
| 1365 flag_unroll_loops = 1; | |
| 1366 | |
|
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1367 /* web and rename-registers help when run after loop unrolling. */ |
| 0 | 1368 if (flag_web == AUTODETECT_VALUE) |
| 111 | 1369 flag_web = flag_unroll_loops; |
|
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1370 |
| 0 | 1371 if (flag_rename_registers == AUTODETECT_VALUE) |
| 111 | 1372 flag_rename_registers = flag_unroll_loops; |
| 0 | 1373 |
| 1374 if (flag_non_call_exceptions) | |
| 1375 flag_asynchronous_unwind_tables = 1; | |
| 1376 if (flag_asynchronous_unwind_tables) | |
| 1377 flag_unwind_tables = 1; | |
| 1378 | |
| 1379 if (flag_value_profile_transformations) | |
| 1380 flag_profile_values = 1; | |
| 1381 | |
| 1382 /* Warn about options that are not supported on this machine. */ | |
| 1383 #ifndef INSN_SCHEDULING | |
| 1384 if (flag_schedule_insns || flag_schedule_insns_after_reload) | |
| 111 | 1385 warning_at (UNKNOWN_LOCATION, 0, |
| 1386 "instruction scheduling not supported on this target machine"); | |
| 0 | 1387 #endif |
| 111 | 1388 if (!DELAY_SLOTS && flag_delayed_branch) |
| 1389 warning_at (UNKNOWN_LOCATION, 0, | |
| 1390 "this target machine does not have delayed branches"); | |
| 0 | 1391 |
| 1392 user_label_prefix = USER_LABEL_PREFIX; | |
| 1393 if (flag_leading_underscore != -1) | |
| 1394 { | |
| 1395 /* If the default prefix is more complicated than "" or "_", | |
| 1396 issue a warning and ignore this option. */ | |
| 1397 if (user_label_prefix[0] == 0 || | |
| 1398 (user_label_prefix[0] == '_' && user_label_prefix[1] == 0)) | |
| 1399 { | |
| 1400 user_label_prefix = flag_leading_underscore ? "_" : ""; | |
| 1401 } | |
| 1402 else | |
| 111 | 1403 warning_at (UNKNOWN_LOCATION, 0, |
| 1404 "-f%sleading-underscore not supported on this " | |
| 1405 "target machine", flag_leading_underscore ? "" : "no-"); | |
| 0 | 1406 } |
| 1407 | |
| 1408 /* If we are in verbose mode, write out the version and maybe all the | |
| 1409 option flags in use. */ | |
| 1410 if (version_flag) | |
| 1411 { | |
| 111 | 1412 print_version (stderr, "", true); |
| 0 | 1413 if (! quiet_flag) |
| 1414 print_switch_values (print_to_stderr); | |
| 1415 } | |
| 1416 | |
| 1417 if (flag_syntax_only) | |
| 1418 { | |
| 1419 write_symbols = NO_DEBUG; | |
| 1420 profile_flag = 0; | |
| 1421 } | |
| 1422 | |
|
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1423 if (flag_gtoggle) |
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1424 { |
|
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1425 if (debug_info_level == DINFO_LEVEL_NONE) |
|
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1426 { |
|
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1427 debug_info_level = DINFO_LEVEL_NORMAL; |
|
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1428 |
|
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1429 if (write_symbols == NO_DEBUG) |
|
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1430 write_symbols = PREFERRED_DEBUGGING_TYPE; |
|
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1431 } |
|
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1432 else |
|
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1433 debug_info_level = DINFO_LEVEL_NONE; |
|
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1434 } |
|
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1435 |
|
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|
1436 if (flag_dump_final_insns && !flag_syntax_only && !no_backend) |
|
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|
1437 { |
|
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|
1438 FILE *final_output = fopen (flag_dump_final_insns, "w"); |
|
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1439 if (!final_output) |
|
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|
1440 { |
| 111 | 1441 error_at (UNKNOWN_LOCATION, |
| 1442 "could not open final insn dump file %qs: %m", | |
| 1443 flag_dump_final_insns); | |
|
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|
1444 flag_dump_final_insns = NULL; |
|
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1445 } |
|
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|
1446 else if (fclose (final_output)) |
|
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1447 { |
| 111 | 1448 error_at (UNKNOWN_LOCATION, |
| 1449 "could not close zeroed insn dump file %qs: %m", | |
| 1450 flag_dump_final_insns); | |
|
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|
1451 flag_dump_final_insns = NULL; |
|
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1452 } |
|
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1453 } |
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1454 |
| 0 | 1455 /* A lot of code assumes write_symbols == NO_DEBUG if the debugging |
| 1456 level is 0. */ | |
| 1457 if (debug_info_level == DINFO_LEVEL_NONE) | |
| 1458 write_symbols = NO_DEBUG; | |
| 1459 | |
| 1460 if (write_symbols == NO_DEBUG) | |
| 1461 ; | |
| 1462 #if defined(DBX_DEBUGGING_INFO) | |
| 1463 else if (write_symbols == DBX_DEBUG) | |
| 1464 debug_hooks = &dbx_debug_hooks; | |
| 1465 #endif | |
| 1466 #if defined(XCOFF_DEBUGGING_INFO) | |
| 1467 else if (write_symbols == XCOFF_DEBUG) | |
| 1468 debug_hooks = &xcoff_debug_hooks; | |
| 1469 #endif | |
| 111 | 1470 else if (SDB_DEBUGGING_INFO && write_symbols == SDB_DEBUG) |
| 0 | 1471 debug_hooks = &sdb_debug_hooks; |
| 1472 #ifdef DWARF2_DEBUGGING_INFO | |
| 1473 else if (write_symbols == DWARF2_DEBUG) | |
| 1474 debug_hooks = &dwarf2_debug_hooks; | |
| 1475 #endif | |
| 1476 #ifdef VMS_DEBUGGING_INFO | |
| 1477 else if (write_symbols == VMS_DEBUG || write_symbols == VMS_AND_DWARF2_DEBUG) | |
| 1478 debug_hooks = &vmsdbg_debug_hooks; | |
| 1479 #endif | |
| 111 | 1480 #ifdef DWARF2_LINENO_DEBUGGING_INFO |
| 1481 else if (write_symbols == DWARF2_DEBUG) | |
| 1482 debug_hooks = &dwarf2_lineno_debug_hooks; | |
| 1483 #endif | |
| 0 | 1484 else |
| 111 | 1485 error_at (UNKNOWN_LOCATION, |
| 1486 "target system does not support the %qs debug format", | |
| 1487 debug_type_names[write_symbols]); | |
| 0 | 1488 |
|
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1489 /* We know which debug output will be used so we can set flag_var_tracking |
|
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|
1490 and flag_var_tracking_uninit if the user has not specified them. */ |
| 0 | 1491 if (debug_info_level < DINFO_LEVEL_NORMAL |
| 1492 || debug_hooks->var_location == do_nothing_debug_hooks.var_location) | |
| 1493 { | |
| 1494 if (flag_var_tracking == 1 | |
| 1495 || flag_var_tracking_uninit == 1) | |
| 1496 { | |
| 1497 if (debug_info_level < DINFO_LEVEL_NORMAL) | |
| 111 | 1498 warning_at (UNKNOWN_LOCATION, 0, |
| 1499 "variable tracking requested, but useless unless " | |
| 1500 "producing debug info"); | |
| 0 | 1501 else |
| 111 | 1502 warning_at (UNKNOWN_LOCATION, 0, |
| 1503 "variable tracking requested, but not supported " | |
| 1504 "by this debug format"); | |
| 0 | 1505 } |
| 1506 flag_var_tracking = 0; | |
| 1507 flag_var_tracking_uninit = 0; | |
| 1508 } | |
| 1509 | |
|
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|
1510 /* The debug hooks are used to implement -fdump-go-spec because it |
|
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|
1511 gives a simple and stable API for all the information we need to |
|
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1512 dump. */ |
|
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1513 if (flag_dump_go_spec != NULL) |
|
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1514 debug_hooks = dump_go_spec_init (flag_dump_go_spec, debug_hooks); |
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1515 |
|
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1516 /* If the user specifically requested variable tracking with tagging |
|
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|
1517 uninitialized variables, we need to turn on variable tracking. |
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1518 (We already determined above that variable tracking is feasible.) */ |
| 111 | 1519 if (flag_var_tracking_uninit == 1) |
|
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1520 flag_var_tracking = 1; |
| 0 | 1521 |
| 1522 if (flag_var_tracking == AUTODETECT_VALUE) | |
| 1523 flag_var_tracking = optimize >= 1; | |
| 1524 | |
| 111 | 1525 if (flag_var_tracking_uninit == AUTODETECT_VALUE) |
| 1526 flag_var_tracking_uninit = flag_var_tracking; | |
| 1527 | |
|
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|
1528 if (flag_var_tracking_assignments == AUTODETECT_VALUE) |
|
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|
1529 flag_var_tracking_assignments = flag_var_tracking |
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1530 && !(flag_selective_scheduling || flag_selective_scheduling2); |
|
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|
1531 |
|
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|
1532 if (flag_var_tracking_assignments_toggle) |
|
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1533 flag_var_tracking_assignments = !flag_var_tracking_assignments; |
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1534 |
|
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|
1535 if (flag_var_tracking_assignments && !flag_var_tracking) |
|
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|
1536 flag_var_tracking = flag_var_tracking_assignments = -1; |
|
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1537 |
|
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|
1538 if (flag_var_tracking_assignments |
|
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|
1539 && (flag_selective_scheduling || flag_selective_scheduling2)) |
| 111 | 1540 warning_at (UNKNOWN_LOCATION, 0, |
| 1541 "var-tracking-assignments changes selective scheduling"); | |
|
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1542 |
| 0 | 1543 if (flag_tree_cselim == AUTODETECT_VALUE) |
| 111 | 1544 { |
| 1545 if (HAVE_conditional_move) | |
| 1546 flag_tree_cselim = 1; | |
| 1547 else | |
| 1548 flag_tree_cselim = 0; | |
| 1549 } | |
| 0 | 1550 |
| 1551 /* If auxiliary info generation is desired, open the output file. | |
| 1552 This goes in the same directory as the source file--unlike | |
| 1553 all the other output files. */ | |
| 1554 if (flag_gen_aux_info) | |
| 1555 { | |
| 1556 aux_info_file = fopen (aux_info_file_name, "w"); | |
| 1557 if (aux_info_file == 0) | |
| 111 | 1558 fatal_error (UNKNOWN_LOCATION, |
| 1559 "can%'t open %s: %m", aux_info_file_name); | |
| 0 | 1560 } |
| 1561 | |
| 111 | 1562 if (!targetm_common.have_named_sections) |
| 0 | 1563 { |
| 1564 if (flag_function_sections) | |
| 1565 { | |
| 111 | 1566 warning_at (UNKNOWN_LOCATION, 0, |
| 1567 "-ffunction-sections not supported for this target"); | |
| 0 | 1568 flag_function_sections = 0; |
| 1569 } | |
| 1570 if (flag_data_sections) | |
| 1571 { | |
| 111 | 1572 warning_at (UNKNOWN_LOCATION, 0, |
| 1573 "-fdata-sections not supported for this target"); | |
| 0 | 1574 flag_data_sections = 0; |
| 1575 } | |
| 1576 } | |
| 1577 | |
| 111 | 1578 if (flag_prefetch_loop_arrays > 0 && !targetm.code_for_prefetch) |
| 0 | 1579 { |
| 111 | 1580 warning_at (UNKNOWN_LOCATION, 0, |
| 1581 "-fprefetch-loop-arrays not supported for this target"); | |
| 0 | 1582 flag_prefetch_loop_arrays = 0; |
| 1583 } | |
| 111 | 1584 else if (flag_prefetch_loop_arrays > 0 && !targetm.have_prefetch ()) |
| 0 | 1585 { |
| 111 | 1586 warning_at (UNKNOWN_LOCATION, 0, |
| 1587 "-fprefetch-loop-arrays not supported for this target " | |
| 1588 "(try -march switches)"); | |
| 0 | 1589 flag_prefetch_loop_arrays = 0; |
| 1590 } | |
| 1591 | |
| 1592 /* This combination of options isn't handled for i386 targets and doesn't | |
| 1593 make much sense anyway, so don't allow it. */ | |
|
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|
1594 if (flag_prefetch_loop_arrays > 0 && optimize_size) |
| 0 | 1595 { |
| 111 | 1596 warning_at (UNKNOWN_LOCATION, 0, |
| 1597 "-fprefetch-loop-arrays is not supported with -Os"); | |
| 0 | 1598 flag_prefetch_loop_arrays = 0; |
| 1599 } | |
| 1600 | |
| 1601 /* The presence of IEEE signaling NaNs, implies all math can trap. */ | |
| 1602 if (flag_signaling_nans) | |
| 1603 flag_trapping_math = 1; | |
| 1604 | |
|
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1605 /* We cannot reassociate if we want traps or signed zeros. */ |
| 0 | 1606 if (flag_associative_math && (flag_trapping_math || flag_signed_zeros)) |
| 1607 { | |
| 111 | 1608 warning_at (UNKNOWN_LOCATION, 0, |
| 1609 "-fassociative-math disabled; other options take " | |
| 1610 "precedence"); | |
| 0 | 1611 flag_associative_math = 0; |
| 1612 } | |
| 1613 | |
| 111 | 1614 /* -fstack-clash-protection is not currently supported on targets |
| 1615 where the stack grows up. */ | |
| 1616 if (flag_stack_clash_protection && !STACK_GROWS_DOWNWARD) | |
| 1617 { | |
| 1618 warning_at (UNKNOWN_LOCATION, 0, | |
| 1619 "%<-fstack-clash-protection%> is not supported on targets " | |
| 1620 "where the stack grows from lower to higher addresses"); | |
| 1621 flag_stack_clash_protection = 0; | |
| 1622 } | |
| 1623 | |
| 1624 /* We can not support -fstack-check= and -fstack-clash-protection at | |
| 1625 the same time. */ | |
| 1626 if (flag_stack_check != NO_STACK_CHECK && flag_stack_clash_protection) | |
| 1627 { | |
| 1628 warning_at (UNKNOWN_LOCATION, 0, | |
| 1629 "%<-fstack-check=%> and %<-fstack-clash_protection%> are " | |
| 1630 "mutually exclusive. Disabling %<-fstack-check=%>"); | |
| 1631 flag_stack_check = NO_STACK_CHECK; | |
| 1632 } | |
| 1633 | |
| 0 | 1634 /* With -fcx-limited-range, we do cheap and quick complex arithmetic. */ |
| 1635 if (flag_cx_limited_range) | |
| 1636 flag_complex_method = 0; | |
| 1637 | |
| 1638 /* With -fcx-fortran-rules, we do something in-between cheap and C99. */ | |
| 1639 if (flag_cx_fortran_rules) | |
| 1640 flag_complex_method = 1; | |
| 1641 | |
| 1642 /* Targets must be able to place spill slots at lower addresses. If the | |
| 1643 target already uses a soft frame pointer, the transition is trivial. */ | |
| 1644 if (!FRAME_GROWS_DOWNWARD && flag_stack_protect) | |
| 1645 { | |
| 111 | 1646 warning_at (UNKNOWN_LOCATION, 0, |
| 1647 "-fstack-protector not supported for this target"); | |
| 0 | 1648 flag_stack_protect = 0; |
| 1649 } | |
| 1650 if (!flag_stack_protect) | |
| 1651 warn_stack_protect = 0; | |
| 1652 | |
| 111 | 1653 /* Address Sanitizer needs porting to each target architecture. */ |
| 1654 | |
| 1655 if ((flag_sanitize & SANITIZE_ADDRESS) | |
| 1656 && !FRAME_GROWS_DOWNWARD) | |
| 0 | 1657 { |
| 111 | 1658 warning_at (UNKNOWN_LOCATION, 0, |
| 1659 "-fsanitize=address and -fsanitize=kernel-address " | |
| 1660 "are not supported for this target"); | |
| 1661 flag_sanitize &= ~SANITIZE_ADDRESS; | |
| 1662 } | |
| 1663 | |
| 1664 if ((flag_sanitize & SANITIZE_USER_ADDRESS) | |
| 1665 && targetm.asan_shadow_offset == NULL) | |
| 1666 { | |
| 1667 warning_at (UNKNOWN_LOCATION, 0, | |
| 1668 "-fsanitize=address not supported for this target"); | |
| 1669 flag_sanitize &= ~SANITIZE_ADDRESS; | |
| 0 | 1670 } |
|
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|
1671 |
| 111 | 1672 /* Do not use IPA optimizations for register allocation if profiler is active |
| 1673 or patchable function entries are inserted for run-time instrumentation | |
| 1674 or port does not emit prologue and epilogue as RTL. */ | |
| 1675 if (profile_flag || function_entry_patch_area_size | |
| 1676 || !targetm.have_prologue () || !targetm.have_epilogue ()) | |
| 1677 flag_ipa_ra = 0; | |
| 1678 | |
| 1679 /* Enable -Werror=coverage-mismatch when -Werror and -Wno-error | |
| 1680 have not been set. */ | |
| 1681 if (!global_options_set.x_warnings_are_errors | |
| 1682 && warn_coverage_mismatch | |
| 1683 && (global_dc->classify_diagnostic[OPT_Wcoverage_mismatch] == | |
| 1684 DK_UNSPECIFIED)) | |
| 1685 diagnostic_classify_diagnostic (global_dc, OPT_Wcoverage_mismatch, | |
| 1686 DK_ERROR, UNKNOWN_LOCATION); | |
| 1687 | |
|
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1688 /* Save the current optimization options. */ |
| 111 | 1689 optimization_default_node = build_optimization_node (&global_options); |
|
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1690 optimization_current_node = optimization_default_node; |
| 111 | 1691 |
| 1692 /* Please don't change global_options after this point, those changes won't | |
| 1693 be reflected in optimization_{default,current}_node. */ | |
| 0 | 1694 } |
| 1695 | |
| 1696 /* This function can be called multiple times to reinitialize the compiler | |
| 1697 back end when register classes or instruction sets have changed, | |
| 1698 before each function. */ | |
| 1699 static void | |
| 1700 backend_init_target (void) | |
| 1701 { | |
| 1702 /* Initialize alignment variables. */ | |
| 1703 init_alignments (); | |
| 1704 | |
| 1705 /* This depends on stack_pointer_rtx. */ | |
| 1706 init_fake_stack_mems (); | |
| 1707 | |
| 1708 /* Sets static_base_value[HARD_FRAME_POINTER_REGNUM], which is | |
| 1709 mode-dependent. */ | |
| 1710 init_alias_target (); | |
| 1711 | |
| 1712 /* Depends on HARD_FRAME_POINTER_REGNUM. */ | |
| 111 | 1713 if (!ira_use_lra_p) |
| 1714 init_reload (); | |
| 1715 | |
| 1716 /* Depends on the enabled attribute. */ | |
| 1717 recog_init (); | |
| 0 | 1718 |
| 1719 /* The following initialization functions need to generate rtl, so | |
| 1720 provide a dummy function context for them. */ | |
| 1721 init_dummy_function_start (); | |
| 1722 | |
| 1723 /* rtx_cost is mode-dependent, so cached values need to be recomputed | |
| 1724 on a mode change. */ | |
| 1725 init_expmed (); | |
| 111 | 1726 init_lower_subreg (); |
| 1727 init_set_costs (); | |
| 1728 | |
| 1729 init_expr_target (); | |
| 1730 ira_init (); | |
| 0 | 1731 |
| 1732 /* We may need to recompute regno_save_code[] and regno_restore_code[] | |
| 1733 after a mode change as well. */ | |
|
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1734 caller_save_initialized_p = false; |
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1735 |
| 0 | 1736 expand_dummy_function_end (); |
| 1737 } | |
| 1738 | |
| 1739 /* Initialize the compiler back end. This function is called only once, | |
| 1740 when starting the compiler. */ | |
| 1741 static void | |
| 1742 backend_init (void) | |
| 1743 { | |
|
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1744 init_emit_once (); |
| 0 | 1745 |
| 1746 init_rtlanal (); | |
| 1747 init_inline_once (); | |
| 1748 init_varasm_once (); | |
| 1749 save_register_info (); | |
| 1750 | |
| 111 | 1751 /* Middle end needs this initialization for default mem attributes |
| 1752 used by early calls to make_decl_rtl. */ | |
| 1753 init_emit_regs (); | |
| 1754 | |
| 1755 /* Middle end needs this initialization for mode tables used to assign | |
| 1756 modes to vector variables. */ | |
| 1757 init_regs (); | |
| 0 | 1758 } |
| 1759 | |
| 111 | 1760 /* Initialize excess precision settings. |
| 1761 | |
| 1762 We have no need to modify anything here, just keep track of what the | |
| 1763 user requested. We'll figure out any appropriate relaxations | |
| 1764 later. */ | |
| 1765 | |
|
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1766 static void |
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1767 init_excess_precision (void) |
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1768 { |
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1769 gcc_assert (flag_excess_precision_cmdline != EXCESS_PRECISION_DEFAULT); |
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1770 flag_excess_precision = flag_excess_precision_cmdline; |
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1771 } |
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1772 |
| 0 | 1773 /* Initialize things that are both lang-dependent and target-dependent. |
| 1774 This function can be called more than once if target parameters change. */ | |
| 1775 static void | |
| 1776 lang_dependent_init_target (void) | |
| 1777 { | |
|
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1778 /* This determines excess precision settings. */ |
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1779 init_excess_precision (); |
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1780 |
| 0 | 1781 /* This creates various _DECL nodes, so needs to be called after the |
| 1782 front end is initialized. It also depends on the HAVE_xxx macros | |
| 1783 generated from the target machine description. */ | |
| 1784 init_optabs (); | |
| 1785 | |
| 111 | 1786 gcc_assert (!this_target_rtl->target_specific_initialized); |
| 1787 } | |
| 1788 | |
| 1789 /* Perform initializations that are lang-dependent or target-dependent. | |
| 1790 but matters only for late optimizations and RTL generation. */ | |
| 0 | 1791 |
| 111 | 1792 static int rtl_initialized; |
| 1793 | |
| 1794 void | |
| 1795 initialize_rtl (void) | |
| 1796 { | |
| 1797 auto_timevar tv (g_timer, TV_INITIALIZE_RTL); | |
| 0 | 1798 |
| 111 | 1799 /* Initialization done just once per compilation, but delayed |
| 1800 till code generation. */ | |
| 1801 if (!rtl_initialized) | |
| 1802 ira_init_once (); | |
| 1803 rtl_initialized = true; | |
| 0 | 1804 |
| 111 | 1805 /* Target specific RTL backend initialization. */ |
| 1806 if (!this_target_rtl->target_specific_initialized) | |
| 1807 { | |
| 1808 backend_init_target (); | |
| 1809 this_target_rtl->target_specific_initialized = true; | |
| 1810 } | |
| 0 | 1811 } |
| 1812 | |
| 1813 /* Language-dependent initialization. Returns nonzero on success. */ | |
| 1814 static int | |
| 1815 lang_dependent_init (const char *name) | |
| 1816 { | |
| 1817 location_t save_loc = input_location; | |
| 1818 if (dump_base_name == 0) | |
| 1819 dump_base_name = name && name[0] ? name : "gccdump"; | |
| 1820 | |
| 1821 /* Other front-end initialization. */ | |
| 1822 input_location = BUILTINS_LOCATION; | |
| 1823 if (lang_hooks.init () == 0) | |
| 1824 return 0; | |
| 1825 input_location = save_loc; | |
| 1826 | |
| 111 | 1827 if (!flag_wpa) |
| 1828 { | |
| 1829 init_asm_output (name); | |
| 0 | 1830 |
| 111 | 1831 /* If stack usage information is desired, open the output file. */ |
| 1832 if (flag_stack_usage) | |
| 1833 stack_usage_file = open_auxiliary_file ("su"); | |
| 1834 } | |
|
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1835 |
| 0 | 1836 /* This creates various _DECL nodes, so needs to be called after the |
| 1837 front end is initialized. */ | |
| 1838 init_eh (); | |
| 1839 | |
| 1840 /* Do the target-specific parts of the initialization. */ | |
| 1841 lang_dependent_init_target (); | |
| 1842 | |
| 111 | 1843 if (!flag_wpa) |
| 1844 { | |
| 1845 /* If dbx symbol table desired, initialize writing it and output the | |
| 1846 predefined types. */ | |
| 1847 timevar_push (TV_SYMOUT); | |
| 0 | 1848 |
| 111 | 1849 /* Now we have the correct original filename, we can initialize |
| 1850 debug output. */ | |
| 1851 (*debug_hooks->init) (name); | |
| 0 | 1852 |
| 111 | 1853 timevar_pop (TV_SYMOUT); |
| 1854 } | |
| 0 | 1855 |
| 1856 return 1; | |
| 1857 } | |
| 1858 | |
| 1859 | |
| 1860 /* Reinitialize everything when target parameters, such as register usage, | |
| 1861 have changed. */ | |
| 1862 void | |
| 1863 target_reinit (void) | |
| 1864 { | |
|
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1865 struct rtl_data saved_x_rtl; |
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1866 rtx *saved_regno_reg_rtx; |
| 111 | 1867 tree saved_optimization_current_node; |
| 1868 struct target_optabs *saved_this_fn_optabs; | |
| 1869 | |
| 1870 /* Temporarily switch to the default optimization node, so that | |
| 1871 *this_target_optabs is set to the default, not reflecting | |
| 1872 whatever a previous function used for the optimize | |
| 1873 attribute. */ | |
| 1874 saved_optimization_current_node = optimization_current_node; | |
| 1875 saved_this_fn_optabs = this_fn_optabs; | |
| 1876 if (saved_optimization_current_node != optimization_default_node) | |
| 1877 { | |
| 1878 optimization_current_node = optimization_default_node; | |
| 1879 cl_optimization_restore | |
| 1880 (&global_options, | |
| 1881 TREE_OPTIMIZATION (optimization_default_node)); | |
| 1882 } | |
| 1883 this_fn_optabs = this_target_optabs; | |
|
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1884 |
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1885 /* Save *crtl and regno_reg_rtx around the reinitialization |
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1886 to allow target_reinit being called even after prepare_function_start. */ |
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1887 saved_regno_reg_rtx = regno_reg_rtx; |
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1888 if (saved_regno_reg_rtx) |
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1889 { |
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1890 saved_x_rtl = *crtl; |
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1891 memset (crtl, '\0', sizeof (*crtl)); |
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1892 regno_reg_rtx = NULL; |
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1893 } |
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1894 |
| 111 | 1895 this_target_rtl->target_specific_initialized = false; |
| 1896 | |
| 1897 /* This initializes hard_frame_pointer, and calls init_reg_modes_target() | |
| 1898 to initialize reg_raw_mode[]. */ | |
| 1899 init_emit_regs (); | |
| 1900 | |
| 1901 /* This invokes target hooks to set fixed_reg[] etc, which is | |
| 1902 mode-dependent. */ | |
| 1903 init_regs (); | |
| 0 | 1904 |
| 1905 /* Reinitialize lang-dependent parts. */ | |
| 1906 lang_dependent_init_target (); | |
|
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1907 |
| 111 | 1908 /* Restore the original optimization node. */ |
| 1909 if (saved_optimization_current_node != optimization_default_node) | |
| 1910 { | |
| 1911 optimization_current_node = saved_optimization_current_node; | |
| 1912 cl_optimization_restore (&global_options, | |
| 1913 TREE_OPTIMIZATION (optimization_current_node)); | |
| 1914 } | |
| 1915 this_fn_optabs = saved_this_fn_optabs; | |
| 1916 | |
| 1917 /* Restore regno_reg_rtx at the end, as free_after_compilation from | |
|
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1918 expand_dummy_function_end clears it. */ |
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1919 if (saved_regno_reg_rtx) |
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1920 { |
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1921 *crtl = saved_x_rtl; |
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1922 regno_reg_rtx = saved_regno_reg_rtx; |
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1923 saved_regno_reg_rtx = NULL; |
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1924 } |
| 0 | 1925 } |
| 1926 | |
| 1927 void | |
| 1928 dump_memory_report (bool final) | |
| 1929 { | |
| 111 | 1930 dump_line_table_statistics (); |
| 0 | 1931 ggc_print_statistics (); |
| 1932 stringpool_statistics (); | |
| 1933 dump_tree_statistics (); | |
| 1934 dump_gimple_statistics (); | |
| 1935 dump_rtx_statistics (); | |
| 1936 dump_alloc_pool_statistics (); | |
| 1937 dump_bitmap_statistics (); | |
| 111 | 1938 dump_hash_table_loc_statistics (); |
| 0 | 1939 dump_vec_loc_statistics (); |
| 1940 dump_ggc_loc_statistics (final); | |
|
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1941 dump_alias_stats (stderr); |
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1942 dump_pta_stats (stderr); |
| 0 | 1943 } |
| 1944 | |
| 1945 /* Clean up: close opened files, etc. */ | |
| 1946 | |
| 1947 static void | |
|
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1948 finalize (bool no_backend) |
| 0 | 1949 { |
| 1950 /* Close the dump files. */ | |
| 1951 if (flag_gen_aux_info) | |
| 1952 { | |
| 1953 fclose (aux_info_file); | |
| 111 | 1954 aux_info_file = NULL; |
|
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1955 if (seen_error ()) |
| 0 | 1956 unlink (aux_info_file_name); |
| 1957 } | |
| 1958 | |
| 1959 /* Close non-debugging input and output files. Take special care to note | |
| 1960 whether fclose returns an error, since the pages might still be on the | |
| 1961 buffer chain while the file is open. */ | |
| 1962 | |
| 1963 if (asm_out_file) | |
| 1964 { | |
| 1965 if (ferror (asm_out_file) != 0) | |
| 111 | 1966 fatal_error (input_location, "error writing to %s: %m", asm_file_name); |
| 0 | 1967 if (fclose (asm_out_file) != 0) |
| 111 | 1968 fatal_error (input_location, "error closing %s: %m", asm_file_name); |
| 1969 asm_out_file = NULL; | |
| 0 | 1970 } |
| 1971 | |
|
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1972 if (stack_usage_file) |
| 111 | 1973 { |
| 1974 fclose (stack_usage_file); | |
| 1975 stack_usage_file = NULL; | |
| 1976 } | |
| 1977 | |
| 1978 if (seen_error ()) | |
| 1979 coverage_remove_note_file (); | |
| 0 | 1980 |
|
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1981 if (!no_backend) |
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1982 { |
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1983 statistics_fini (); |
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1984 |
| 111 | 1985 g->get_passes ()->finish_optimization_passes (); |
|
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1986 |
| 111 | 1987 lra_finish_once (); |
|
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1988 } |
| 0 | 1989 |
| 1990 if (mem_report) | |
| 1991 dump_memory_report (true); | |
| 1992 | |
| 111 | 1993 if (profile_report) |
| 1994 dump_profile_report (); | |
| 1995 | |
| 0 | 1996 /* Language-specific end of compilation actions. */ |
| 1997 lang_hooks.finish (); | |
| 1998 } | |
| 1999 | |
| 111 | 2000 static bool |
| 2001 standard_type_bitsize (int bitsize) | |
| 2002 { | |
| 2003 /* As a special exception, we always want __int128 enabled if possible. */ | |
| 2004 if (bitsize == 128) | |
| 2005 return false; | |
| 2006 if (bitsize == CHAR_TYPE_SIZE | |
| 2007 || bitsize == SHORT_TYPE_SIZE | |
| 2008 || bitsize == INT_TYPE_SIZE | |
| 2009 || bitsize == LONG_TYPE_SIZE | |
| 2010 || bitsize == LONG_LONG_TYPE_SIZE) | |
| 2011 return true; | |
| 2012 return false; | |
| 2013 } | |
| 2014 | |
| 0 | 2015 /* Initialize the compiler, and compile the input file. */ |
| 2016 static void | |
| 111 | 2017 do_compile () |
| 0 | 2018 { |
| 2019 process_options (); | |
| 2020 | |
| 2021 /* Don't do any more if an error has already occurred. */ | |
|
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2022 if (!seen_error ()) |
| 0 | 2023 { |
| 111 | 2024 int i; |
| 2025 | |
| 2026 timevar_start (TV_PHASE_SETUP); | |
| 2027 | |
| 0 | 2028 /* This must be run always, because it is needed to compute the FP |
| 2029 predefined macros, such as __LDBL_MAX__, for targets using non | |
| 2030 default FP formats. */ | |
| 2031 init_adjust_machine_modes (); | |
| 111 | 2032 init_derived_machine_modes (); |
| 2033 | |
| 2034 /* This must happen after the backend has a chance to process | |
| 2035 command line options, but before the parsers are | |
| 2036 initialized. */ | |
| 2037 for (i = 0; i < NUM_INT_N_ENTS; i ++) | |
| 2038 if (targetm.scalar_mode_supported_p (int_n_data[i].m) | |
| 2039 && ! standard_type_bitsize (int_n_data[i].bitsize)) | |
| 2040 int_n_enabled_p[i] = true; | |
| 2041 else | |
| 2042 int_n_enabled_p[i] = false; | |
| 0 | 2043 |
| 2044 /* Set up the back-end if requested. */ | |
| 2045 if (!no_backend) | |
| 2046 backend_init (); | |
| 2047 | |
| 2048 /* Language-dependent initialization. Returns true on success. */ | |
| 2049 if (lang_dependent_init (main_input_filename)) | |
| 111 | 2050 { |
| 2051 /* Initialize yet another pass. */ | |
| 2052 | |
| 2053 ggc_protect_identifiers = true; | |
| 2054 | |
| 2055 symtab->initialize (); | |
| 2056 init_final (main_input_filename); | |
| 2057 coverage_init (aux_base_name); | |
| 2058 statistics_init (); | |
| 2059 invoke_plugin_callbacks (PLUGIN_START_UNIT, NULL); | |
| 2060 | |
| 2061 timevar_stop (TV_PHASE_SETUP); | |
| 2062 | |
| 2063 compile_file (); | |
| 2064 } | |
| 2065 else | |
| 2066 { | |
| 2067 timevar_stop (TV_PHASE_SETUP); | |
| 2068 } | |
| 2069 | |
| 2070 timevar_start (TV_PHASE_FINALIZE); | |
| 0 | 2071 |
|
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2072 finalize (no_backend); |
| 111 | 2073 |
| 2074 timevar_stop (TV_PHASE_FINALIZE); | |
| 0 | 2075 } |
| 111 | 2076 } |
| 2077 | |
| 2078 toplev::toplev (timer *external_timer, | |
| 2079 bool init_signals) | |
| 2080 : m_use_TV_TOTAL (external_timer == NULL), | |
| 2081 m_init_signals (init_signals) | |
| 2082 { | |
| 2083 if (external_timer) | |
| 2084 g_timer = external_timer; | |
| 2085 } | |
| 2086 | |
| 2087 toplev::~toplev () | |
| 2088 { | |
| 2089 if (g_timer && m_use_TV_TOTAL) | |
| 2090 { | |
| 2091 g_timer->stop (TV_TOTAL); | |
| 2092 g_timer->print (stderr); | |
| 2093 delete g_timer; | |
| 2094 g_timer = NULL; | |
| 2095 } | |
| 2096 } | |
| 2097 | |
| 2098 /* Potentially call timevar_init (which will create g_timevars if it | |
| 2099 doesn't already exist). */ | |
| 0 | 2100 |
| 111 | 2101 void |
| 2102 toplev::start_timevars () | |
| 2103 { | |
| 2104 if (time_report || !quiet_flag || flag_detailed_statistics) | |
| 2105 timevar_init (); | |
| 2106 | |
| 2107 timevar_start (TV_TOTAL); | |
| 2108 } | |
| 2109 | |
| 2110 /* Handle -fself-test. */ | |
| 2111 | |
| 2112 void | |
| 2113 toplev::run_self_tests () | |
| 2114 { | |
| 2115 if (no_backend) | |
| 2116 { | |
| 2117 error_at (UNKNOWN_LOCATION, "self-tests incompatible with -E"); | |
| 2118 return; | |
| 2119 } | |
| 2120 #if CHECKING_P | |
| 2121 /* Reset some state. */ | |
| 2122 input_location = UNKNOWN_LOCATION; | |
| 2123 bitmap_obstack_initialize (NULL); | |
| 2124 | |
| 2125 /* Run the tests; any failures will lead to an abort of the process. | |
| 2126 Use "make selftests-gdb" to run under the debugger. */ | |
| 2127 ::selftest::run_tests (); | |
| 2128 | |
| 2129 /* Cleanup. */ | |
| 2130 bitmap_obstack_release (NULL); | |
| 2131 #else | |
| 2132 inform (UNKNOWN_LOCATION, "self-tests are not enabled in this build"); | |
| 2133 #endif /* #if CHECKING_P */ | |
| 0 | 2134 } |
| 2135 | |
| 2136 /* Entry point of cc1, cc1plus, jc1, f771, etc. | |
| 2137 Exit code is FATAL_EXIT_CODE if can't open files or if there were | |
| 2138 any errors, or SUCCESS_EXIT_CODE if compilation succeeded. | |
| 2139 | |
| 2140 It is not safe to call this function more than once. */ | |
| 2141 | |
| 2142 int | |
| 111 | 2143 toplev::main (int argc, char **argv) |
| 0 | 2144 { |
| 111 | 2145 /* Parsing and gimplification sometimes need quite large stack. |
| 2146 Increase stack size limits if possible. */ | |
| 2147 stack_limit_increase (64 * 1024 * 1024); | |
| 2148 | |
|
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2149 expandargv (&argc, &argv); |
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2150 |
| 0 | 2151 /* Initialization of GCC's environment, and diagnostics. */ |
| 111 | 2152 general_init (argv[0], m_init_signals); |
| 0 | 2153 |
|
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2154 /* One-off initialization of options that does not need to be |
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2155 repeated when options are added for particular functions. */ |
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2156 init_options_once (); |
| 111 | 2157 init_opts_obstack (); |
|
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2158 |
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2159 /* Initialize global options structures; this must be repeated for |
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2160 each structure used for parsing options. */ |
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2161 init_options_struct (&global_options, &global_options_set); |
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2162 lang_hooks.init_options_struct (&global_options); |
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2163 |
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2164 /* Convert the options to an array. */ |
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2165 decode_cmdline_options_to_array_default_mask (argc, |
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2166 CONST_CAST2 (const char **, |
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2167 char **, argv), |
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2168 &save_decoded_options, |
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2169 &save_decoded_options_count); |
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2170 |
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2171 /* Perform language-specific options initialization. */ |
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2172 lang_hooks.init_options (save_decoded_options_count, save_decoded_options); |
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2173 |
| 0 | 2174 /* Parse the options and do minimal processing; basically just |
| 2175 enough to default flags appropriately. */ | |
|
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2176 decode_options (&global_options, &global_options_set, |
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2177 save_decoded_options, save_decoded_options_count, |
| 111 | 2178 UNKNOWN_LOCATION, global_dc, |
| 2179 targetm.target_option.override); | |
|
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2180 |
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2181 handle_common_deferred_options (); |
| 0 | 2182 |
| 2183 init_local_tick (); | |
| 2184 | |
|
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2185 initialize_plugins (); |
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2186 |
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2187 if (version_flag) |
| 111 | 2188 print_version (stderr, "", true); |
|
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2189 |
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2190 if (help_flag) |
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2191 print_plugins_help (stderr, ""); |
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2192 |
| 0 | 2193 /* Exit early if we can (e.g. -help). */ |
| 2194 if (!exit_after_options) | |
| 111 | 2195 { |
| 2196 if (m_use_TV_TOTAL) | |
| 2197 start_timevars (); | |
| 2198 do_compile (); | |
| 2199 } | |
| 2200 | |
| 2201 if (warningcount || errorcount || werrorcount) | |
| 2202 print_ignored_options (); | |
| 2203 | |
| 2204 if (flag_self_test) | |
| 2205 run_self_tests (); | |
| 0 | 2206 |
| 111 | 2207 /* Invoke registered plugin callbacks if any. Some plugins could |
| 2208 emit some diagnostics here. */ | |
| 2209 invoke_plugin_callbacks (PLUGIN_FINISH, NULL); | |
| 2210 | |
| 2211 if (flag_diagnostics_generate_patch) | |
| 2212 { | |
| 2213 gcc_assert (global_dc->edit_context_ptr); | |
| 2214 | |
| 2215 pretty_printer pp; | |
| 2216 pp_show_color (&pp) = pp_show_color (global_dc->printer); | |
| 2217 global_dc->edit_context_ptr->print_diff (&pp, true); | |
| 2218 pp_flush (&pp); | |
| 2219 } | |
| 2220 | |
|
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2221 diagnostic_finish (global_dc); |
| 0 | 2222 |
| 111 | 2223 finalize_plugins (); |
|
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2224 |
| 111 | 2225 after_memory_report = true; |
| 2226 | |
| 2227 if (seen_error () || werrorcount) | |
| 0 | 2228 return (FATAL_EXIT_CODE); |
| 2229 | |
| 2230 return (SUCCESS_EXIT_CODE); | |
| 2231 } | |
| 111 | 2232 |
| 2233 /* For those that want to, this function aims to clean up enough state that | |
| 2234 you can call toplev::main again. */ | |
| 2235 void | |
| 2236 toplev::finalize (void) | |
| 2237 { | |
| 2238 rtl_initialized = false; | |
| 2239 this_target_rtl->target_specific_initialized = false; | |
| 2240 | |
| 2241 /* Needs to be called before cgraph_c_finalize since it uses symtab. */ | |
| 2242 ipa_reference_c_finalize (); | |
| 2243 | |
| 2244 cgraph_c_finalize (); | |
| 2245 cgraphunit_c_finalize (); | |
| 2246 dwarf2out_c_finalize (); | |
| 2247 gcse_c_finalize (); | |
| 2248 ipa_cp_c_finalize (); | |
| 2249 ira_costs_c_finalize (); | |
| 2250 params_c_finalize (); | |
| 2251 | |
| 2252 finalize_options_struct (&global_options); | |
| 2253 finalize_options_struct (&global_options_set); | |
| 2254 | |
| 2255 /* save_decoded_options uses opts_obstack, so these must | |
| 2256 be cleaned up together. */ | |
| 2257 obstack_free (&opts_obstack, NULL); | |
| 2258 XDELETEVEC (save_decoded_options); | |
| 2259 save_decoded_options = NULL; | |
| 2260 save_decoded_options_count = 0; | |
| 2261 | |
| 2262 /* Clean up the context (and pass_manager etc). */ | |
| 2263 delete g; | |
| 2264 g = NULL; | |
| 2265 | |
| 2266 } |