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 /* to switch on printing of implicit casts */
  87 extern bool print_implicit_casts;
  88
  89 /* to switch on printing of  srenthesis to indicate operator precedence */
  90 extern bool print_parenthesis;
  91
  92 static int            verbose;
  93 static struct obstack cppflags_obst, ldflags_obst;
  94
  95 #if defined(_DEBUG) || defined(FIRM_DEBUG)
  96 /**
  97  * Debug printf implementation.
  98  *
  99  * @param fmt  printf style format parameter
 100  */
 101 void dbg_printf(const char *fmt, ...)
 102 {
 103         va_list list;
 104
 105         if (firm_dump.debug_print) {
 106                 va_start(list, fmt);
 107                 vprintf(fmt, list);
 108                 va_end(list);
 109         }  /* if */
 110 }
 111 #endif /* defined(_DEBUG) || defined(FIRM_DEBUG) */
 112
 113 static void initialize_firm(void)
 114 {
 115         firm_early_init();
 116
 117         dump_consts_local(1);
 118         dump_keepalive_edges(1);
 119 }
 120
 121 static void get_output_name(char *buf, size_t buflen, const char *inputname,
 122                             const char *newext)
 123 {
 124         size_t last_dot = 0xffffffff;
 125         size_t i = 0;
 126
 127         if(inputname == NULL) {
 128                 snprintf(buf, buflen, "a%s", newext);
 129                 return;
 130         }
 131
 132         for(const char *c = inputname; *c != 0; ++c) {
 133                 if(*c == '.')
 134                         last_dot = i;
 135                 ++i;
 136         }
 137         if(last_dot == 0xffffffff)
 138                 last_dot = i;
 139
 140         if(last_dot >= buflen)
 141                 panic("filename too long");
 142         memcpy(buf, inputname, last_dot);
 143
 144         size_t extlen = strlen(newext) + 1;
 145         if(extlen + last_dot >= buflen)
 146                 panic("filename too long");
 147         memcpy(buf+last_dot, newext, extlen);
 148 }
 149
 150 static translation_unit_t *do_parsing(FILE *const in, const char *const input)
 151 {
 152         lexer_open_stream(in, input);
 153         translation_unit_t *unit = parse();
 154         return unit;
 155 }
 156
 157 static void lextest(FILE *in, const char *fname)
 158 {
 159         lexer_open_stream(in, fname);
 160
 161         do {
 162                 lexer_next_preprocessing_token();
 163                 print_token(stdout, &lexer_token);
 164                 puts("");
 165         } while(lexer_token.type != T_EOF);
 166 }
 167
 168 static FILE* preprocess(FILE* in, const char *fname)
 169 {
 170         char buf[4096];
 171         const char *flags = obstack_finish(&cppflags_obst);
 172
 173         if(in != stdin) {
 174                 snprintf(buf, sizeof(buf), PREPROCESSOR " %s %s", flags, fname);
 175         } else {
 176                 /* read from stdin */
 177                 snprintf(buf, sizeof(buf), PREPROCESSOR " %s -", flags);
 178         }
 179
 180         if(verbose) {
 181                 puts(buf);
 182         }
 183         FILE* f = popen(buf, "r");
 184         if (f == NULL) {
 185                 fprintf(stderr, "invoking preprocessor failed\n");
 186                 exit(1);
 187         }
 188         return f;
 189 }
 190
 191 static void do_link(const char *out, const char *in)
 192 {
 193         char buf[4096];
 194         const char *flags = obstack_finish(&ldflags_obst);
 195
 196         snprintf(buf, sizeof(buf), LINKER " %s -o %s %s", flags, out, in);
 197         if(verbose) {
 198                 puts(buf);
 199         }
 200         int err = system(buf);
 201         if(err != 0) {
 202                 fprintf(stderr, "linker reported an error\n");
 203                 exit(1);
 204         }
 205 }
 206
 207 static void assemble(const char *out, const char *in)
 208 {
 209         char buf[4096];
 210
 211         snprintf(buf, sizeof(buf), "%s %s -o %s", ASSEMBLER, in, out);
 212         if(verbose) {
 213                 puts(buf);
 214         }
 215
 216         int err = system(buf);
 217         if(err != 0) {
 218                 fprintf(stderr, "assembler reported an error\n");
 219                 exit(1);
 220         }
 221 }
 222
 223 static const char *try_dir(const char *dir)
 224 {
 225         if(dir == NULL)
 226                 return dir;
 227         if(access(dir, R_OK | W_OK | X_OK) == 0)
 228                 return dir;
 229         return NULL;
 230 }
 231
 232 static const char *get_tempdir(void)
 233 {
 234         static const char *tmpdir = NULL;
 235
 236         if(tmpdir != NULL)
 237                 return tmpdir;
 238
 239         if(tmpdir == NULL)
 240                 tmpdir = try_dir(getenv("TMPDIR"));
 241         if(tmpdir == NULL)
 242                 tmpdir = try_dir(getenv("TMP"));
 243         if(tmpdir == NULL)
 244                 tmpdir = try_dir(getenv("TEMP"));
 245
 246 #ifdef P_tmpdir
 247         if(tmpdir == NULL)
 248                 tmpdir = try_dir(P_tmpdir);
 249 #endif
 250
 251         if(tmpdir == NULL)
 252                 tmpdir = try_dir("/var/tmp");
 253         if(tmpdir == NULL)
 254                 tmpdir = try_dir("/usr/tmp");
 255         if(tmpdir == NULL)
 256                 tmpdir = try_dir("/tmp");
 257
 258         if(tmpdir == NULL)
 259                 tmpdir = ".";
 260
 261         return tmpdir;
 262 }
 263
 264 #ifndef HAVE_MKSTEMP
 265 /* cheap and nasty mkstemp replacement */
 266 static int mkstemp(char *templ)
 267 {
 268         mktemp(templ);
 269         return open(templ, O_RDWR|O_CREAT|O_EXCL|O_BINARY, 0600);
 270 }
 271 #endif
 272
 273 /**
 274  * an own version of tmpnam, which: writes in a buffer, appends a user specified
 275  * suffix, emits no warnings during linking (like glibc/gnu ld do for tmpnam)...
 276  */
 277 static FILE *make_temp_file(char *buffer, size_t buflen,
 278                             const char *prefix, const char *suffix)
 279 {
 280         const char *tempdir = get_tempdir();
 281
 282         /* oh well... mkstemp doesn't accept a suffix after XXXXXX... */
 283         (void) suffix;
 284         suffix = "";
 285
 286         snprintf(buffer, buflen, "%s/%sXXXXXX%s", tempdir, prefix, suffix);
 287
 288         int fd = mkstemp(buffer);
 289         if(fd == -1) {
 290                 fprintf(stderr, "couldn't create temporary file: %s\n",
 291                         strerror(errno));
 292                 exit(1);
 293         }
 294         FILE *out = fdopen(fd, "w");
 295         if(out == NULL) {
 296                 fprintf(stderr, "couldn't create temporary file FILE*\n");
 297                 exit(1);
 298         }
 299
 300         return out;
 301 }
 302
 303 /**
 304  * Do the necessary lowering for compound parameters.
 305  */
 306 void lower_compound_params(void)
 307 {
 308         lower_params_t params;
 309
 310         params.def_ptr_alignment    = 4;
 311         params.flags                = LF_COMPOUND_RETURN | LF_RETURN_HIDDEN;
 312         params.hidden_params        = ADD_HIDDEN_ALWAYS_IN_FRONT;
 313         params.find_pointer_type    = NULL;
 314         params.ret_compound_in_regs = NULL;
 315         lower_calls_with_compounds(&params);
 316 }
 317
 318 typedef enum compile_mode_t {
 319         ParseOnly,
 320         Compile,
 321         CompileDump,
 322         CompileAssemble,
 323         CompileAssembleLink,
 324         LexTest,
 325         PrintAst,
 326         PrintFluffy
 327 } compile_mode_t;
 328
 329 static void usage(const char *argv0)
 330 {
 331         fprintf(stderr, "Usage %s input [-o output] [-c]\n", argv0);
 332 }
 333
 334 int main(int argc, char **argv)
 335 {
 336         initialize_firm();
 337
 338         const char     *input        = NULL;
 339         const char     *outname      = NULL;
 340         const char     *dumpfunction = NULL;
 341         compile_mode_t  mode         = CompileAssembleLink;
 342
 343         obstack_init(&cppflags_obst);
 344         obstack_init(&ldflags_obst);
 345
 346 #define GET_ARG_AFTER(def, args)                                             \
 347         def = &arg[sizeof(args)-1];                                              \
 348         if(def[0] == '\0') {                                                     \
 349                 ++i;                                                                 \
 350                 if(i >= argc) {                                                      \
 351                         fprintf(stderr, "error: expected argument after '" args "'\n");  \
 352                         argument_errors = true;                                          \
 353                         break;                                                           \
 354                 }                                                                    \
 355                 def = argv[i];                                                       \
 356                 if(def[0] == '-' && def[1] != '\0') {                                \
 357                         fprintf(stderr, "error: expected argument after '" args "'\n");  \
 358                         argument_errors = true;                                          \
 359                         continue;                                                        \
 360                 }                                                                    \
 361         }
 362
 363 #define SINGLE_OPTION(ch) (option[0] == (ch) && option[1] == '\0')
 364
 365         bool help_displayed  = false;
 366         bool argument_errors = false;
 367         for(int i = 1; i < argc; ++i) {
 368                 const char *arg = argv[i];
 369                 if(arg[0] == '-') {
 370                         /* an option */
 371                         const char *option = &arg[1];
 372                         if(option[0] == 'o') {
 373                                 GET_ARG_AFTER(outname, "-o");
 374                         } else if(SINGLE_OPTION('c')) {
 375                                 mode = CompileAssemble;
 376                         } else if(SINGLE_OPTION('S')) {
 377                                 mode = Compile;
 378                         } else if(option[0] == 'I') {
 379                                 const char *opt;
 380                                 GET_ARG_AFTER(opt, "-I");
 381                                 obstack_printf(&cppflags_obst, " -I%s", opt);
 382                         } else if(option[0] == 'D') {
 383                                 const char *opt;
 384                                 GET_ARG_AFTER(opt, "-D");
 385                                 obstack_printf(&cppflags_obst, " -D%s", opt);
 386                         } else if(option[0] == 'U') {
 387                                 const char *opt;
 388                                 GET_ARG_AFTER(opt, "-U");
 389                                 obstack_printf(&cppflags_obst, " -U%s", opt);
 390                         } else if(option[0] == 'l') {
 391                                 const char *opt;
 392                                 GET_ARG_AFTER(opt, "-l");
 393                                 obstack_printf(&ldflags_obst, " -l%s", opt);
 394                         } else if(option[0] == 'L') {
 395                                 const char *opt;
 396                                 GET_ARG_AFTER(opt, "-L");
 397                                 obstack_printf(&ldflags_obst, " -L%s", opt);
 398                         } else if(SINGLE_OPTION('v')) {
 399                                 verbose = 1;
 400                         } else if(SINGLE_OPTION('w')) {
 401                                 inhibit_all_warnings = true;
 402                         } else if(option[0] == 'f') {
 403                                 const char *opt;
 404                                 GET_ARG_AFTER(opt, "-f");
 405
 406                                 if(strcmp(opt, "syntax-only") == 0) {
 407                                         mode = ParseOnly;
 408                                 } else if(strcmp(opt, "omit-frame-pointer") == 0) {
 409                                         firm_be_option("omitfp");
 410                                 } else if(strcmp(opt, "no-omit-frame-pointer") == 0) {
 411                                         firm_be_option("omitfp=no");
 412                                 } else {
 413                                         int res = firm_option(opt);
 414                                         if (res == 0) {
 415                                                 fprintf(stderr, "error: unknown Firm option '-f %s'\n",
 416                                                         opt);
 417                                                 argument_errors = true;
 418                                                 continue;
 419                                         } else if (res == -1) {
 420                                                 help_displayed = true;
 421                                         }
 422                                 }
 423                         } else if(option[0] == 'b') {
 424                                 const char *opt;
 425                                 GET_ARG_AFTER(opt, "-b");
 426                                 int res = firm_be_option(opt);
 427                                 if (res == 0) {
 428                                         fprintf(stderr, "error: unknown Firm backend option '-b %s'\n",
 429                                                 opt);
 430                                         argument_errors = true;
 431                                 } else if (res == -1) {
 432                                         help_displayed = true;
 433                                 }
 434                         } else if(option[0] == 'W') {
 435                                 set_warning_opt(&option[1]);
 436                         } else if(option[0] == 'm') {
 437                                 const char *opt;
 438                                 GET_ARG_AFTER(opt, "-m");
 439                                 char *endptr;
 440                                 long int value = strtol(opt, &endptr, 10);
 441                                 if (*endptr != '\0') {
 442                                         fprintf(stderr, "error: wrong option '-m %s'\n",  opt);
 443                                         argument_errors = true;
 444                                 }
 445                                 if (value != 16 && value != 32 && value != 64) {
 446                                         fprintf(stderr, "error: option -m supports only 16, 32 or 64\n");
 447                                         argument_errors = true;
 448                                 } else {
 449                                         machine_size = (unsigned int)value;
 450                                 }
 451                         } else if (option[0] == '\0') {
 452                                 if(input != NULL) {
 453                                         fprintf(stderr, "error: multiple input files specified\n");
 454                                         argument_errors = true;
 455                                 } else {
 456                                         input = arg;
 457                                 }
 458                         } else if(strcmp(option, "pedantic") == 0) {
 459                                 fprintf(stderr, "warning: ignoring gcc option '%s'\n", arg);
 460                         } else if(option[0] == 'O' ||
 461                                   option[0] == 'g' ||
 462                                   strncmp(option, "std=", 4) == 0) {
 463                                 fprintf(stderr, "warning: ignoring gcc option '%s'\n", arg);
 464                         } else if (option[0] == '-') {
 465                                 /* double dash option */
 466                                 ++option;
 467                                 if(strcmp(option, "gcc") == 0) {
 468                                         c_mode |= _GNUC;
 469                                 } else if(strcmp(option, "no-gcc") == 0) {
 470                                         c_mode &= ~_GNUC;
 471                                 } else if(strcmp(option, "ms") == 0) {
 472                                         c_mode |= _MS;
 473                                 } else if(strcmp(option, "no-ms") == 0) {
 474                                         c_mode &= ~_MS;
 475                                 } else if(strcmp(option, "signed-chars") == 0) {
 476                                         char_is_signed = true;
 477                                 } else if(strcmp(option, "unsigned-chars") == 0) {
 478                                         char_is_signed = false;
 479                                 } else if(strcmp(option, "strict") == 0) {
 480                                         strict_mode = true;
 481                                 } else if(strcmp(option, "lextest") == 0) {
 482                                         mode = LexTest;
 483                                 } else if(strcmp(option, "print-ast") == 0) {
 484                                         mode = PrintAst;
 485                                 } else if(strcmp(option, "print-implicit-cast") == 0) {
 486                                         print_implicit_casts = true;
 487                                 } else if(strcmp(option, "print-parenthesis") == 0) {
 488                                         print_parenthesis = true;
 489                                 } else if(strcmp(option, "print-fluffy") == 0) {
 490                                         mode = PrintFluffy;
 491                                 } else if(strcmp(option, "version") == 0) {
 492                                         firm_version_t ver;
 493                                         firm_get_version(&ver);
 494                                         printf("cparser (%d.%d %s) using libFirm (%u.%u", 0, 1, cparser_REVISION, ver.major, ver.minor);
 495                                         if(ver.revision[0] != 0) {
 496                                                 putchar(' ');
 497                                                 fputs(ver.revision, stdout);
 498                                         }
 499                                         if(ver.build[0] != 0) {
 500                                                 putchar(' ');
 501                                                 fputs(ver.build, stdout);
 502                                         }
 503                                         puts(")\n");
 504                                         exit(EXIT_SUCCESS);
 505                                 } else if(strcmp(option, "dump-function") == 0) {
 506                                         ++i;
 507                                         if(i >= argc) {
 508                                                 fprintf(stderr, "error: "
 509                                                         "expected argument after '--dump-function'\n");
 510                                                 argument_errors = true;
 511                                                 break;
 512                                         }
 513                                         dumpfunction = argv[i];
 514                                         mode         = CompileDump;
 515                                 } else {
 516                                         fprintf(stderr, "error: unknown argument '%s'\n", arg);
 517                                         argument_errors = true;
 518                                 }
 519                         } else {
 520                                 fprintf(stderr, "error: unknown argument '%s'\n", arg);
 521                                 argument_errors = true;
 522                         }
 523                 } else {
 524                         if(input != NULL) {
 525                                 fprintf(stderr, "error: multiple input files specified\n");
 526                                 argument_errors = true;
 527                         } else {
 528                                 input = arg;
 529                         }
 530                 }
 531         }
 532
 533         /* we do the lowering in ast2firm */
 534         firm_opt.lower_bitfields = FALSE;
 535
 536         if(help_displayed) {
 537                 return !argument_errors;
 538         }
 539         if(argument_errors) {
 540                 usage(argv[0]);
 541                 return 1;
 542         }
 543
 544         gen_firm_init();
 545         init_symbol_table();
 546         init_tokens();
 547         init_types();
 548         init_typehash();
 549         init_basic_types();
 550         init_lexer();
 551         init_ast();
 552         init_parser();
 553         init_ast2firm();
 554
 555         FILE *out = NULL;
 556         char  outnamebuf[4096];
 557         if(outname == NULL) {
 558                 switch(mode) {
 559                 case PrintAst:
 560                 case PrintFluffy:
 561                 case LexTest:
 562                         if(outname == NULL)
 563                                 outname = "-";
 564                         break;
 565                 case ParseOnly:
 566                         break;
 567                 case Compile:
 568                         get_output_name(outnamebuf, sizeof(outnamebuf), input, ".s");
 569                         outname = outnamebuf;
 570                         break;
 571                 case CompileAssemble:
 572                         get_output_name(outnamebuf, sizeof(outnamebuf), input, ".o");
 573                         outname = outnamebuf;
 574                         break;
 575                 case CompileDump:
 576                         get_output_name(outnamebuf, sizeof(outnamebuf), dumpfunction,
 577                                         ".vcg");
 578                         outname = outnamebuf;
 579                         break;
 580                 case CompileAssembleLink:
 581                         outname = "a.out";
 582                         break;
 583                 }
 584         }
 585
 586         if(outname != NULL) {
 587                 if(strcmp(outname, "-") == 0) {
 588                         out = stdout;
 589                 } else {
 590                         out = fopen(outname, "w");
 591                         if(out == NULL) {
 592                                 fprintf(stderr, "Couldn't open '%s' for writing: %s\n", outname,
 593                                         strerror(errno));
 594                                 return 1;
 595                         }
 596                 }
 597         }
 598
 599         FILE *in;
 600         if(input == NULL) {
 601                 fprintf(stderr, "%s: no input files\n", argv[0]);
 602                 return 1;
 603         } else if(strcmp(input, "-") == 0) {
 604                 in    = stdin;
 605                 input = "<stdin>";
 606         } else {
 607                 in = fopen(input, "r");
 608                 if(in == NULL) {
 609                         fprintf(stderr, "Couldn't open '%s': %s\n", input, strerror(errno));
 610                         return 1;
 611                 }
 612         }
 613
 614         if(mode == LexTest) {
 615                 lextest(in, input);
 616                 fclose(in);
 617                 return 0;
 618         }
 619
 620         FILE *preprocessed_in = preprocess(in, input);
 621         translation_unit_t *const unit = do_parsing(preprocessed_in, input);
 622         int result = pclose(preprocessed_in);
 623         if(result != 0) {
 624                 return result;
 625         }
 626         if(unit == NULL) {
 627                 /* parsing failed because of errors */
 628                 fprintf(stderr, "%u error(s), %u warning(s)\n", error_count, warning_count);
 629                 return EXIT_FAILURE;
 630         }
 631         if (warning_count > 0) {
 632                 fprintf(stderr, "%u warning(s)\n", warning_count);
 633         }
 634
 635         if(mode == PrintAst) {
 636                 type_set_output(out);
 637                 ast_set_output(out);
 638                 print_ast(unit);
 639                 return 0;
 640         }
 641         if(mode == PrintFluffy) {
 642                 type_set_output(out);
 643                 ast_set_output(out);
 644                 write_fluffy_decls(out, unit);
 645         }
 646
 647         translation_unit_to_firm(unit);
 648
 649         if(mode == ParseOnly) {
 650                 return 0;
 651         }
 652
 653         FILE *asm_out;
 654         char  asm_tempfile[1024];
 655         if(mode == CompileDump) {
 656                 asm_out = NULL;
 657                 firm_be_opt.selection = BE_NONE;
 658         } else if(mode == Compile) {
 659                 asm_out = out;
 660         } else {
 661                 asm_out
 662                         = make_temp_file(asm_tempfile, sizeof(asm_tempfile), "cc", ".s");
 663         }
 664         gen_firm_finish(asm_out, input, /*c_mode=*/1, /*firm_const_exists=*/0);
 665
 666         if(mode == CompileDump) {
 667                 /* find irg */
 668                 ident    *id     = new_id_from_str(dumpfunction);
 669                 ir_graph *irg    = NULL;
 670                 int       n_irgs = get_irp_n_irgs();
 671                 for(int i = 0; i < n_irgs; ++i) {
 672                         ir_graph *tirg   = get_irp_irg(i);
 673                         ident    *irg_id = get_entity_ident(get_irg_entity(tirg));
 674                         if(irg_id == id) {
 675                                 irg = tirg;
 676                                 break;
 677                         }
 678                 }
 679
 680                 if(irg == NULL) {
 681                         fprintf(stderr, "No graph for function '%s' found\n", dumpfunction);
 682                         return 1;
 683                 }
 684
 685                 dump_ir_block_graph_file(irg, out);
 686                 fclose(out);
 687                 return 0;
 688         }
 689
 690         fclose(asm_out);
 691
 692         /* assemble assembler and create object file */
 693         char obj_tfile[1024];
 694         if(mode == CompileAssemble || mode == CompileAssembleLink) {
 695                 const char *obj_outfile;
 696                 if(mode == CompileAssemble) {
 697                         fclose(out);
 698                         obj_outfile = outname;
 699                 } else {
 700                         FILE *tempf
 701                                 = make_temp_file(obj_tfile, sizeof(obj_tfile), "cc", ".o");
 702                         fclose(tempf);
 703                         obj_outfile = obj_tfile;
 704                 }
 705
 706                 assemble(obj_outfile, asm_tempfile);
 707         }
 708
 709         /* link object file */
 710         if(mode == CompileAssembleLink) {
 711                 do_link(outname, obj_tfile);
 712         }
 713
 714         obstack_free(&cppflags_obst, NULL);
 715         obstack_free(&ldflags_obst, NULL);
 716
 717         exit_ast2firm();
 718         exit_parser();
 719         exit_ast();
 720         exit_lexer();
 721         exit_typehash();
 722         exit_types();
 723         exit_tokens();
 724         exit_symbol_table();
 725         return 0;
 726 }