nsz Git - cparser/blob - main.c

   1 #include <config.h>
   2
   3 #define _GNU_SOURCE
   4
   5 #include <stdio.h>
   6 #include <stdlib.h>
   7 #include <stdbool.h>
   8 #include <errno.h>
   9 #include <string.h>
  10 #include <assert.h>
  11
  12 #ifdef _WIN32
  13
  14 #include <fcntl.h>
  15 #include <io.h>
  16
  17 /* no eXecute on Win32 */
  18 #define X_OK 0
  19 #define W_OK 2
  20 #define R_OK 4
  21
  22 #define O_RDWR          _O_RDWR
  23 #define O_CREAT         _O_CREAT
  24 #define O_EXCL          _O_EXCL
  25 #define O_BINARY        _O_BINARY
  26
  27 /* remap some names, we are not in the POSIX world */
  28 #define access(fname, mode)      _access(fname, mode)
  29 #define mktemp(tmpl)             _mktemp(tmpl)
  30 #define open(fname, oflag, mode) _open(fname, oflag, mode)
  31 #define fdopen(fd, mode)         _fdopen(fd, mode)
  32 #define popen(cmd, mode)         _popen(cmd, mode)
  33 #define pclose(file)             _pclose(file)
  34
  35 #else
  36 #include <unistd.h>
  37 #define HAVE_MKSTEMP
  38 #endif
  39
  40 #ifndef WITH_LIBCORE
  41 #define WITH_LIBCORE
  42 #endif
  43
  44 #include <libfirm/firm.h>
  45 #include <libfirm/be.h>
  46
  47 #include "lexer.h"
  48 #include "token_t.h"
  49 #include "types.h"
  50 #include "type_hash.h"
  51 #include "parser.h"
  52 #include "ast2firm.h"
  53 #include "diagnostic.h"
  54 #include "lang_features.h"
  55 #include "driver/firm_opt.h"
  56 #include "driver/firm_cmdline.h"
  57 #include "adt/error.h"
  58 #include "write_fluffy.h"
  59 #include "revision.h"
  60 #include "warning.h"
  61
  62 #ifndef PREPROCESSOR
  63 #define PREPROCESSOR "cpp -std=c99 -U__WCHAR_TYPE__ -D__WCHAR_TYPE__=int"
  64 #endif
  65
  66 #ifndef LINKER
  67 #define LINKER    "gcc -m32"
  68 #endif
  69
  70 #ifndef ASSEMBLER
  71 #define ASSEMBLER "as --32"
  72 #endif
  73
  74 /** The current c mode/dialect. */
  75 unsigned int c_mode = _C89|_C99|_GNUC;
  76
  77 /** The 'machine size', 16, 32 or 64 bit, 32bit is the default. */
  78 unsigned int machine_size = 32;
  79
  80 /** true if the char type is signed. */
  81 bool char_is_signed = true;
  82
  83 /** true for strict language checking. */
  84 bool strict_mode = false;
  85
  86 static int            verbose;
  87 static struct obstack cppflags_obst, ldflags_obst;
  88
  89 #if defined(_DEBUG) || defined(FIRM_DEBUG)
  90 /**
  91  * Debug printf implementation.
  92  *
  93  * @param fmt  printf style format parameter
  94  */
  95 void dbg_printf(const char *fmt, ...)
  96 {
  97         va_list list;
  98
  99         if (firm_dump.debug_print) {
 100                 va_start(list, fmt);
 101                 vprintf(fmt, list);
 102                 va_end(list);
 103         }  /* if */
 104 }
 105 #endif /* defined(_DEBUG) || defined(FIRM_DEBUG) */
 106
 107 static void initialize_firm(void)
 108 {
 109         firm_early_init();
 110
 111         dump_consts_local(1);
 112         dump_keepalive_edges(1);
 113 }
 114
 115 static void get_output_name(char *buf, size_t buflen, const char *inputname,
 116                             const char *newext)
 117 {
 118         size_t last_dot = 0xffffffff;
 119         size_t i = 0;
 120
 121         if(inputname == NULL) {
 122                 snprintf(buf, buflen, "a%s", newext);
 123                 return;
 124         }
 125
 126         for(const char *c = inputname; *c != 0; ++c) {
 127                 if(*c == '.')
 128                         last_dot = i;
 129                 ++i;
 130         }
 131         if(last_dot == 0xffffffff)
 132                 last_dot = i;
 133
 134         if(last_dot >= buflen)
 135                 panic("filename too long");
 136         memcpy(buf, inputname, last_dot);
 137
 138         size_t extlen = strlen(newext) + 1;
 139         if(extlen + last_dot >= buflen)
 140                 panic("filename too long");
 141         memcpy(buf+last_dot, newext, extlen);
 142 }
 143
 144 static translation_unit_t *do_parsing(FILE *const in, const char *const input)
 145 {
 146         lexer_open_stream(in, input);
 147         translation_unit_t *unit = parse();
 148         return unit;
 149 }
 150
 151 static void lextest(FILE *in, const char *fname)
 152 {
 153         lexer_open_stream(in, fname);
 154
 155         do {
 156                 lexer_next_preprocessing_token();
 157                 print_token(stdout, &lexer_token);
 158                 puts("");
 159         } while(lexer_token.type != T_EOF);
 160 }
 161
 162 static FILE* preprocess(FILE* in, const char *fname)
 163 {
 164         char buf[4096];
 165         const char *flags = obstack_finish(&cppflags_obst);
 166
 167         if(in != stdin) {
 168                 snprintf(buf, sizeof(buf), PREPROCESSOR " %s %s", flags, fname);
 169         } else {
 170                 /* read from stdin */
 171                 snprintf(buf, sizeof(buf), PREPROCESSOR " %s -", flags);
 172         }
 173
 174         if(verbose) {
 175                 puts(buf);
 176         }
 177         FILE* f = popen(buf, "r");
 178         if (f == NULL) {
 179                 fprintf(stderr, "invoking preprocessor failed\n");
 180                 exit(1);
 181         }
 182         return f;
 183 }
 184
 185 static void do_link(const char *out, const char *in)
 186 {
 187         char buf[4096];
 188         const char *flags = obstack_finish(&ldflags_obst);
 189
 190         snprintf(buf, sizeof(buf), LINKER " %s -o %s %s", flags, out, in);
 191         if(verbose) {
 192                 puts(buf);
 193         }
 194         int err = system(buf);
 195         if(err != 0) {
 196                 fprintf(stderr, "linker reported an error\n");
 197                 exit(1);
 198         }
 199 }
 200
 201 static void assemble(const char *out, const char *in)
 202 {
 203         char buf[4096];
 204
 205         snprintf(buf, sizeof(buf), "%s %s -o %s", ASSEMBLER, in, out);
 206         if(verbose) {
 207                 puts(buf);
 208         }
 209
 210         int err = system(buf);
 211         if(err != 0) {
 212                 fprintf(stderr, "assembler reported an error\n");
 213                 exit(1);
 214         }
 215 }
 216
 217 static const char *try_dir(const char *dir)
 218 {
 219         if(dir == NULL)
 220                 return dir;
 221         if(access(dir, R_OK | W_OK | X_OK) == 0)
 222                 return dir;
 223         return NULL;
 224 }
 225
 226 static const char *get_tempdir(void)
 227 {
 228         static const char *tmpdir = NULL;
 229
 230         if(tmpdir != NULL)
 231                 return tmpdir;
 232
 233         if(tmpdir == NULL)
 234                 tmpdir = try_dir(getenv("TMPDIR"));
 235         if(tmpdir == NULL)
 236                 tmpdir = try_dir(getenv("TMP"));
 237         if(tmpdir == NULL)
 238                 tmpdir = try_dir(getenv("TEMP"));
 239
 240 #ifdef P_tmpdir
 241         if(tmpdir == NULL)
 242                 tmpdir = try_dir(P_tmpdir);
 243 #endif
 244
 245         if(tmpdir == NULL)
 246                 tmpdir = try_dir("/var/tmp");
 247         if(tmpdir == NULL)
 248                 tmpdir = try_dir("/usr/tmp");
 249         if(tmpdir == NULL)
 250                 tmpdir = try_dir("/tmp");
 251
 252         if(tmpdir == NULL)
 253                 tmpdir = ".";
 254
 255         return tmpdir;
 256 }
 257
 258 #ifndef HAVE_MKSTEMP
 259 /* cheap and nasty mkstemp replacement */
 260 static int mkstemp(char *templ)
 261 {
 262         mktemp(templ);
 263         return open(templ, O_RDWR|O_CREAT|O_EXCL|O_BINARY, 0600);
 264 }
 265 #endif
 266
 267 /**
 268  * an own version of tmpnam, which: writes in a buffer, appends a user specified
 269  * suffix, emits no warnings during linking (like glibc/gnu ld do for tmpnam)...
 270  */
 271 static FILE *make_temp_file(char *buffer, size_t buflen,
 272                             const char *prefix, const char *suffix)
 273 {
 274         const char *tempdir = get_tempdir();
 275
 276         /* oh well... mkstemp doesn't accept a suffix after XXXXXX... */
 277         (void) suffix;
 278         suffix = "";
 279
 280         snprintf(buffer, buflen, "%s/%sXXXXXX%s", tempdir, prefix, suffix);
 281
 282         int fd = mkstemp(buffer);
 283         if(fd == -1) {
 284                 fprintf(stderr, "couldn't create temporary file: %s\n",
 285                         strerror(errno));
 286                 exit(1);
 287         }
 288         FILE *out = fdopen(fd, "w");
 289         if(out == NULL) {
 290                 fprintf(stderr, "couldn't create temporary file FILE*\n");
 291                 exit(1);
 292         }
 293
 294         return out;
 295 }
 296
 297 /**
 298  * Do the necessary lowering for compound parameters.
 299  */
 300 void lower_compound_params(void)
 301 {
 302         lower_params_t params;
 303
 304         params.def_ptr_alignment    = 4;
 305         params.flags                = LF_COMPOUND_RETURN | LF_RETURN_HIDDEN;
 306         params.hidden_params        = ADD_HIDDEN_ALWAYS_IN_FRONT;
 307         params.find_pointer_type    = NULL;
 308         params.ret_compound_in_regs = NULL;
 309         lower_calls_with_compounds(&params);
 310 }
 311
 312 typedef enum compile_mode_t {
 313         ParseOnly,
 314         Compile,
 315         CompileDump,
 316         CompileAssemble,
 317         CompileAssembleLink,
 318         LexTest,
 319         PrintAst,
 320         PrintFluffy
 321 } compile_mode_t;
 322
 323 static void usage(const char *argv0)
 324 {
 325         fprintf(stderr, "Usage %s input [-o output] [-c]\n", argv0);
 326 }
 327
 328 int main(int argc, char **argv)
 329 {
 330         initialize_firm();
 331
 332         const char     *input        = NULL;
 333         const char     *outname      = NULL;
 334         const char     *dumpfunction = NULL;
 335         compile_mode_t  mode         = CompileAssembleLink;
 336
 337         obstack_init(&cppflags_obst);
 338         obstack_init(&ldflags_obst);
 339
 340 #define GET_ARG_AFTER(def, args)                                             \
 341         def = &arg[sizeof(args)-1];                                              \
 342         if(def[0] == '\0') {                                                     \
 343                 ++i;                                                                 \
 344                 if(i >= argc) {                                                      \
 345                         fprintf(stderr, "error: expected argument after '" args "'\n");  \
 346                         argument_errors = true;                                          \
 347                         break;                                                           \
 348                 }                                                                    \
 349                 def = argv[i];                                                       \
 350                 if(def[0] == '-' && def[1] != '\0') {                                \
 351                         fprintf(stderr, "error: expected argument after '" args "'\n");  \
 352                         argument_errors = true;                                          \
 353                         continue;                                                        \
 354                 }                                                                    \
 355         }
 356
 357 #define SINGLE_OPTION(ch) (option[0] == (ch) && option[1] == '\0')
 358
 359         bool help_displayed  = false;
 360         bool argument_errors = false;
 361         for(int i = 1; i < argc; ++i) {
 362                 const char *arg = argv[i];
 363                 if(arg[0] == '-') {
 364                         /* an option */
 365                         const char *option = &arg[1];
 366                         if(option[0] == 'o') {
 367                                 GET_ARG_AFTER(outname, "-o");
 368                         } else if(SINGLE_OPTION('c')) {
 369                                 mode = CompileAssemble;
 370                         } else if(SINGLE_OPTION('S')) {
 371                                 mode = Compile;
 372                         } else if(option[0] == 'I') {
 373                                 const char *opt;
 374                                 GET_ARG_AFTER(opt, "-I");
 375                                 obstack_printf(&cppflags_obst, " -I%s", opt);
 376                         } else if(option[0] == 'D') {
 377                                 const char *opt;
 378                                 GET_ARG_AFTER(opt, "-D");
 379                                 obstack_printf(&cppflags_obst, " -D%s", opt);
 380                         } else if(option[0] == 'U') {
 381                                 const char *opt;
 382                                 GET_ARG_AFTER(opt, "-U");
 383                                 obstack_printf(&cppflags_obst, " -U%s", opt);
 384                         } else if(option[0] == 'l') {
 385                                 const char *opt;
 386                                 GET_ARG_AFTER(opt, "-l");
 387                                 obstack_printf(&ldflags_obst, " -l%s", opt);
 388                         } else if(option[0] == 'L') {
 389                                 const char *opt;
 390                                 GET_ARG_AFTER(opt, "-L");
 391                                 obstack_printf(&ldflags_obst, " -L%s", opt);
 392                         } else if(SINGLE_OPTION('v')) {
 393                                 verbose = 1;
 394                         } else if(SINGLE_OPTION('w')) {
 395                                 inhibit_all_warnings = true;
 396                         } else if(option[0] == 'f') {
 397                                 const char *opt;
 398                                 GET_ARG_AFTER(opt, "-f");
 399
 400                                 if(strcmp(opt, "syntax-only") == 0) {
 401                                         mode = ParseOnly;
 402                                 } else if(strcmp(opt, "omit-frame-pointer") == 0) {
 403                                         firm_be_option("omitfp");
 404                                 } else if(strcmp(opt, "no-omit-frame-pointer") == 0) {
 405                                         firm_be_option("omitfp=no");
 406                                 } else {
 407                                         int res = firm_option(opt);
 408                                         if (res == 0) {
 409                                                 fprintf(stderr, "error: unknown Firm option '-f %s'\n",
 410                                                         opt);
 411                                                 argument_errors = true;
 412                                                 continue;
 413                                         } else if (res == -1) {
 414                                                 help_displayed = true;
 415                                         }
 416                                 }
 417                         } else if(option[0] == 'b') {
 418                                 const char *opt;
 419                                 GET_ARG_AFTER(opt, "-b");
 420                                 int res = firm_be_option(opt);
 421                                 if (res == 0) {
 422                                         fprintf(stderr, "error: unknown Firm backend option '-b %s'\n",
 423                                                 opt);
 424                                         argument_errors = true;
 425                                 } else if (res == -1) {
 426                                         help_displayed = true;
 427                                 }
 428                         } else if(option[0] == 'W') {
 429                                 set_warning_opt(&option[1]);
 430                         } else if(option[0] == 'm') {
 431                                 const char *opt;
 432                                 GET_ARG_AFTER(opt, "-m");
 433                                 char *endptr;
 434                                 long int value = strtol(opt, &endptr, 10);
 435                                 if (*endptr != '\0') {
 436                                         fprintf(stderr, "error: wrong option '-m %s'\n",  opt);
 437                                         argument_errors = true;
 438                                 }
 439                                 if (value != 16 && value != 32 && value != 64) {
 440                                         fprintf(stderr, "error: option -m supports only 16, 32 or 64\n");
 441                                         argument_errors = true;
 442                                 } else {
 443                                         machine_size = (unsigned int)value;
 444                                 }
 445                         } else if (option[0] == '\0') {
 446                                 if(input != NULL) {
 447                                         fprintf(stderr, "error: multiple input files specified\n");
 448                                         argument_errors = true;
 449                                 } else {
 450                                         input = arg;
 451                                 }
 452                         } else if(strcmp(option, "pedantic") == 0) {
 453                                 fprintf(stderr, "warning: ignoring gcc option '%s'\n", arg);
 454                         } else if(option[0] == 'O' ||
 455                                   option[0] == 'g' ||
 456                                   strncmp(option, "std=", 4) == 0) {
 457                                 fprintf(stderr, "warning: ignoring gcc option '%s'\n", arg);
 458                         } else if (option[0] == '-') {
 459                                 /* double dash option */
 460                                 ++option;
 461                                 if(strcmp(option, "gcc") == 0) {
 462                                         c_mode |= _GNUC;
 463                                 } else if(strcmp(option, "no-gcc") == 0) {
 464                                         c_mode &= ~_GNUC;
 465                                 } else if(strcmp(option, "ms") == 0) {
 466                                         c_mode |= _MS;
 467                                 } else if(strcmp(option, "no-ms") == 0) {
 468                                         c_mode &= ~_MS;
 469                                 } else if(strcmp(option, "signed-chars") == 0) {
 470                                         char_is_signed = true;
 471                                 } else if(strcmp(option, "unsigned-chars") == 0) {
 472                                         char_is_signed = false;
 473                                 } else if(strcmp(option, "strict") == 0) {
 474                                         strict_mode = true;
 475                                 } else if(strcmp(option, "lextest") == 0) {
 476                                         mode = LexTest;
 477                                 } else if(strcmp(option, "print-ast") == 0) {
 478                                         mode = PrintAst;
 479                                 } else if(strcmp(option, "print-fluffy") == 0) {
 480                                         mode = PrintFluffy;
 481                                 } else if(strcmp(option, "version") == 0) {
 482                                         firm_version_t ver;
 483                                         firm_get_version(&ver);
 484                                         printf("cparser (%d.%d %s) using libFirm (%u.%u", 0, 1, cparser_REVISION, ver.major, ver.minor);
 485                                         if(ver.revision[0] != 0) {
 486                                                 putchar(' ');
 487                                                 fputs(ver.revision, stdout);
 488                                         }
 489                                         if(ver.build[0] != 0) {
 490                                                 putchar(' ');
 491                                                 fputs(ver.build, stdout);
 492                                         }
 493                                         puts(")\n");
 494                                         exit(EXIT_SUCCESS);
 495                                 } else if(strcmp(option, "dump-function") == 0) {
 496                                         ++i;
 497                                         if(i >= argc) {
 498                                                 fprintf(stderr, "error: "
 499                                                         "expected argument after '--dump-function'\n");
 500                                                 argument_errors = true;
 501                                                 break;
 502                                         }
 503                                         dumpfunction = argv[i];
 504                                         mode         = CompileDump;
 505                                 } else {
 506                                         fprintf(stderr, "error: unknown argument '%s'\n", arg);
 507                                         argument_errors = true;
 508                                 }
 509                         } else {
 510                                 fprintf(stderr, "error: unknown argument '%s'\n", arg);
 511                                 argument_errors = true;
 512                         }
 513                 } else {
 514                         if(input != NULL) {
 515                                 fprintf(stderr, "error: multiple input files specified\n");
 516                                 argument_errors = true;
 517                         } else {
 518                                 input = arg;
 519                         }
 520                 }
 521         }
 522
 523         /* we do the lowering in ast2firm */
 524         firm_opt.lower_bitfields = FALSE;
 525
 526         if(help_displayed) {
 527                 return !argument_errors;
 528         }
 529         if(argument_errors) {
 530                 usage(argv[0]);
 531                 return 1;
 532         }
 533
 534         gen_firm_init();
 535         init_symbol_table();
 536         init_tokens();
 537         init_types();
 538         init_typehash();
 539         init_basic_types();
 540         init_lexer();
 541         init_ast();
 542         init_parser();
 543         init_ast2firm();
 544
 545         FILE *out = NULL;
 546         char  outnamebuf[4096];
 547         if(outname == NULL) {
 548                 switch(mode) {
 549                 case PrintAst:
 550                 case PrintFluffy:
 551                 case LexTest:
 552                         if(outname == NULL)
 553                                 outname = "-";
 554                         break;
 555                 case ParseOnly:
 556                         break;
 557                 case Compile:
 558                         get_output_name(outnamebuf, sizeof(outnamebuf), input, ".s");
 559                         outname = outnamebuf;
 560                         break;
 561                 case CompileAssemble:
 562                         get_output_name(outnamebuf, sizeof(outnamebuf), input, ".o");
 563                         outname = outnamebuf;
 564                         break;
 565                 case CompileDump:
 566                         get_output_name(outnamebuf, sizeof(outnamebuf), dumpfunction,
 567                                         ".vcg");
 568                         outname = outnamebuf;
 569                         break;
 570                 case CompileAssembleLink:
 571                         outname = "a.out";
 572                         break;
 573                 }
 574         }
 575
 576         if(outname != NULL) {
 577                 if(strcmp(outname, "-") == 0) {
 578                         out = stdout;
 579                 } else {
 580                         out = fopen(outname, "w");
 581                         if(out == NULL) {
 582                                 fprintf(stderr, "Couldn't open '%s' for writing: %s\n", outname,
 583                                         strerror(errno));
 584                                 return 1;
 585                         }
 586                 }
 587         }
 588
 589         FILE *in;
 590         if(input == NULL) {
 591                 fprintf(stderr, "%s: no input files\n", argv[0]);
 592                 return 1;
 593         } else if(strcmp(input, "-") == 0) {
 594                 in    = stdin;
 595                 input = "<stdin>";
 596         } else {
 597                 in = fopen(input, "r");
 598                 if(in == NULL) {
 599                         fprintf(stderr, "Couldn't open '%s': %s\n", input, strerror(errno));
 600                         return 1;
 601                 }
 602         }
 603
 604         if(mode == LexTest) {
 605                 lextest(in, input);
 606                 fclose(in);
 607                 return 0;
 608         }
 609
 610         FILE *preprocessed_in = preprocess(in, input);
 611         translation_unit_t *const unit = do_parsing(preprocessed_in, input);
 612         int result = pclose(preprocessed_in);
 613         if(result != 0) {
 614                 return result;
 615         }
 616         if(unit == NULL) {
 617                 /* parsing failed because of errors */
 618                 fprintf(stderr, "%u error(s), %u warning(s)\n", error_count, warning_count);
 619                 return EXIT_FAILURE;
 620         }
 621         if (warning_count > 0) {
 622                 fprintf(stderr, "%u warning(s)\n", warning_count);
 623         }
 624
 625         if(mode == PrintAst) {
 626                 type_set_output(out);
 627                 ast_set_output(out);
 628                 print_ast(unit);
 629                 return 0;
 630         }
 631         if(mode == PrintFluffy) {
 632                 type_set_output(out);
 633                 ast_set_output(out);
 634                 write_fluffy_decls(out, unit);
 635         }
 636
 637         translation_unit_to_firm(unit);
 638
 639         if(mode == ParseOnly) {
 640                 return 0;
 641         }
 642
 643         FILE *asm_out;
 644         char  asm_tempfile[1024];
 645         if(mode == CompileDump) {
 646                 asm_out = NULL;
 647                 firm_be_opt.selection = BE_NONE;
 648         } else if(mode == Compile) {
 649                 asm_out = out;
 650         } else {
 651                 asm_out
 652                         = make_temp_file(asm_tempfile, sizeof(asm_tempfile), "cc", ".s");
 653         }
 654         gen_firm_finish(asm_out, input, /*c_mode=*/1, /*firm_const_exists=*/0);
 655
 656         if(mode == CompileDump) {
 657                 /* find irg */
 658                 ident    *id     = new_id_from_str(dumpfunction);
 659                 ir_graph *irg    = NULL;
 660                 int       n_irgs = get_irp_n_irgs();
 661                 for(int i = 0; i < n_irgs; ++i) {
 662                         ir_graph *tirg   = get_irp_irg(i);
 663                         ident    *irg_id = get_entity_ident(get_irg_entity(tirg));
 664                         if(irg_id == id) {
 665                                 irg = tirg;
 666                                 break;
 667                         }
 668                 }
 669
 670                 if(irg == NULL) {
 671                         fprintf(stderr, "No graph for function '%s' found\n", dumpfunction);
 672                         return 1;
 673                 }
 674
 675                 dump_ir_block_graph_file(irg, out);
 676                 fclose(out);
 677                 return 0;
 678         }
 679
 680         fclose(asm_out);
 681
 682         /* assemble assembler and create object file */
 683         char obj_tfile[1024];
 684         if(mode == CompileAssemble || mode == CompileAssembleLink) {
 685                 const char *obj_outfile;
 686                 if(mode == CompileAssemble) {
 687                         fclose(out);
 688                         obj_outfile = outname;
 689                 } else {
 690                         FILE *tempf
 691                                 = make_temp_file(obj_tfile, sizeof(obj_tfile), "cc", ".o");
 692                         fclose(tempf);
 693                         obj_outfile = obj_tfile;
 694                 }
 695
 696                 assemble(obj_outfile, asm_tempfile);
 697         }
 698
 699         /* link object file */
 700         if(mode == CompileAssembleLink) {
 701                 do_link(outname, obj_tfile);
 702         }
 703
 704         obstack_free(&cppflags_obst, NULL);
 705         obstack_free(&ldflags_obst, NULL);
 706
 707         exit_ast2firm();
 708         exit_parser();
 709         exit_ast();
 710         exit_lexer();
 711         exit_typehash();
 712         exit_types();
 713         exit_tokens();
 714         exit_symbol_table();
 715         return 0;
 716 }