nsz Git - cparser/blob - main.c

   1 /*
   2  * This file is part of cparser.
   3  * Copyright (C) 2007-2008 Matthias Braun <matze@braunis.de>
   4  *
   5  * This program is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU General Public License
   7  * as published by the Free Software Foundation; either version 2
   8  * of the License, or (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
  18  * 02111-1307, USA.
  19  */
  20 #include <config.h>
  21
  22 #define _GNU_SOURCE
  23
  24 #include <stdio.h>
  25 #include <stdlib.h>
  26 #include <stdbool.h>
  27 #include <errno.h>
  28 #include <string.h>
  29 #include <assert.h>
  30
  31 #ifdef _WIN32
  32
  33 #include <fcntl.h>
  34 #include <io.h>
  35
  36 /* no eXecute on Win32 */
  37 #define X_OK 0
  38 #define W_OK 2
  39 #define R_OK 4
  40
  41 #define O_RDWR          _O_RDWR
  42 #define O_CREAT         _O_CREAT
  43 #define O_EXCL          _O_EXCL
  44 #define O_BINARY        _O_BINARY
  45
  46 /* remap some names, we are not in the POSIX world */
  47 #define access(fname, mode)      _access(fname, mode)
  48 #define mktemp(tmpl)             _mktemp(tmpl)
  49 #define open(fname, oflag, mode) _open(fname, oflag, mode)
  50 #define fdopen(fd, mode)         _fdopen(fd, mode)
  51 #define popen(cmd, mode)         _popen(cmd, mode)
  52 #define pclose(file)             _pclose(file)
  53
  54 #else
  55 #include <unistd.h>
  56 #define HAVE_MKSTEMP
  57 #endif
  58
  59 #include <libfirm/firm.h>
  60 #include <libfirm/be.h>
  61
  62 #include "lexer.h"
  63 #include "token_t.h"
  64 #include "types.h"
  65 #include "type_hash.h"
  66 #include "parser.h"
  67 #include "type_t.h"
  68 #include "ast2firm.h"
  69 #include "diagnostic.h"
  70 #include "lang_features.h"
  71 #include "driver/firm_opt.h"
  72 #include "driver/firm_cmdline.h"
  73 #include "adt/error.h"
  74 #include "write_fluffy.h"
  75 #include "write_caml.h"
  76 #include "revision.h"
  77 #include "warning.h"
  78 #include "mangle.h"
  79
  80 #ifndef PREPROCESSOR
  81 #ifdef __APPLE__
  82 #define PREPROCESSOR "gcc -E -std=c99 -m32 -U__STRICT_ANSI__"
  83 #else
  84 #define PREPROCESSOR "cpp -std=c99 -m32 -U__STRICT_ANSI__"
  85 #endif
  86 #endif
  87
  88 #ifndef LINKER
  89 #define LINKER    "gcc -m32"
  90 #endif
  91
  92 #ifndef ASSEMBLER
  93 #ifdef __APPLE__
  94 #define ASSEMBLER "gcc -c -xassembler"
  95 #else
  96 #define ASSEMBLER "as --32"
  97 #endif
  98 #endif
  99
 100 /** The current c mode/dialect. */
 101 lang_features_t c_mode = _C89 | _ANSI | _C99 | _GNUC;
 102
 103 /** The 'machine size', 16, 32 or 64 bit, 32bit is the default. */
 104 unsigned int machine_size = 32;
 105
 106 /** true if the char type is signed. */
 107 bool char_is_signed = true;
 108
 109 /** true for strict language checking. */
 110 bool strict_mode = false;
 111
 112 /** use builtins for some libc functions */
 113 bool use_builtins = false;
 114
 115 /** we have extern function with const attribute. */
 116 bool have_const_functions = false;
 117
 118 atomic_type_kind_t wchar_atomic_kind = ATOMIC_TYPE_INT;
 119
 120 /* to switch on printing of implicit casts */
 121 extern bool print_implicit_casts;
 122
 123 /* to switch on printing of parenthesis to indicate operator precedence */
 124 extern bool print_parenthesis;
 125
 126 static int             verbose;
 127 static struct obstack  cppflags_obst, ldflags_obst;
 128 static char            dep_target[1024];
 129 static const char     *outname;
 130
 131 typedef struct file_list_entry_t file_list_entry_t;
 132
 133 typedef enum filetype_t {
 134         FILETYPE_AUTODETECT,
 135         FILETYPE_C,
 136         FILETYPE_PREPROCESSED_C,
 137         FILETYPE_CXX,
 138         FILETYPE_PREPROCESSED_CXX,
 139         FILETYPE_ASSEMBLER,
 140         FILETYPE_PREPROCESSED_ASSEMBLER,
 141         FILETYPE_OBJECT,
 142         FILETYPE_UNKNOWN
 143 } filetype_t;
 144
 145 struct file_list_entry_t {
 146         const char  *name; /**< filename or NULL for stdin */
 147         filetype_t   type;
 148         file_list_entry_t *next;
 149 };
 150
 151 static file_list_entry_t *temp_files;
 152
 153 #if defined(_DEBUG) || defined(FIRM_DEBUG)
 154 /**
 155  * Debug printf implementation.
 156  *
 157  * @param fmt  printf style format parameter
 158  */
 159 void dbg_printf(const char *fmt, ...)
 160 {
 161         va_list list;
 162
 163         if (firm_dump.debug_print) {
 164                 va_start(list, fmt);
 165                 vprintf(fmt, list);
 166                 va_end(list);
 167         }  /* if */
 168 }
 169 #endif /* defined(_DEBUG) || defined(FIRM_DEBUG) */
 170
 171 static void initialize_firm(void)
 172 {
 173         firm_early_init();
 174
 175         dump_consts_local(1);
 176         dump_keepalive_edges(1);
 177 }
 178
 179 static void get_output_name(char *buf, size_t buflen, const char *inputname,
 180                             const char *newext)
 181 {
 182         size_t last_dot = 0xffffffff;
 183         size_t i = 0;
 184
 185         if(inputname == NULL) {
 186                 snprintf(buf, buflen, "a%s", newext);
 187                 return;
 188         }
 189
 190         for(const char *c = inputname; *c != 0; ++c) {
 191                 if(*c == '.')
 192                         last_dot = i;
 193                 ++i;
 194         }
 195         if(last_dot == 0xffffffff)
 196                 last_dot = i;
 197
 198         if(last_dot >= buflen)
 199                 panic("filename too long");
 200         memcpy(buf, inputname, last_dot);
 201
 202         size_t extlen = strlen(newext) + 1;
 203         if(extlen + last_dot >= buflen)
 204                 panic("filename too long");
 205         memcpy(buf+last_dot, newext, extlen);
 206 }
 207
 208 #include "builtins.h"
 209
 210 static translation_unit_t *do_parsing(FILE *const in, const char *const input_name)
 211 {
 212         start_parsing();
 213
 214         if (use_builtins) {
 215                 lexer_open_buffer(builtins, sizeof(builtins)-1, "<builtin>");
 216                 parse();
 217         }
 218
 219         lexer_open_stream(in, input_name);
 220         parse();
 221
 222         translation_unit_t *unit = finish_parsing();
 223         return unit;
 224 }
 225
 226 static void lextest(FILE *in, const char *fname)
 227 {
 228         lexer_open_stream(in, fname);
 229
 230         do {
 231                 lexer_next_preprocessing_token();
 232                 print_token(stdout, &lexer_token);
 233                 puts("");
 234         } while(lexer_token.type != T_EOF);
 235 }
 236
 237 static void add_flag(struct obstack *obst, const char *format, ...)
 238 {
 239         va_list ap;
 240         va_start(ap, format);
 241
 242         char buf[4096];
 243         vsnprintf(buf, sizeof(buf), format, ap);
 244
 245         /* escape stuff... */
 246         obstack_1grow(obst, ' ');
 247         for (char *c = buf; *c != '\0'; ++c) {
 248                 switch(*c) {
 249                 case '"':
 250                 case '\'':
 251                 case '`':
 252                 case ' ':
 253                 case '\t':
 254                 case '\n':
 255                 case '\r':
 256                 case '\\':
 257                 case '$':
 258                 case '(':
 259                 case ')':
 260                         obstack_1grow(obst, '\\');
 261                         /* fallthrough */
 262                 default:
 263                         obstack_1grow(obst, *c);
 264                         break;
 265                 }
 266         }
 267
 268         va_end(ap);
 269 }
 270
 271 static const char *type_to_string(type_t *type)
 272 {
 273         assert(type->kind == TYPE_ATOMIC);
 274         return get_atomic_kind_name(type->atomic.akind);
 275 }
 276
 277 static FILE *preprocess(const char *fname)
 278 {
 279         obstack_1grow(&cppflags_obst, '\0');
 280         const char *flags = obstack_finish(&cppflags_obst);
 281
 282         obstack_printf(&cppflags_obst, "%s", PREPROCESSOR);
 283
 284         /* setup default defines */
 285         add_flag(&cppflags_obst, "-U__WCHAR_TYPE__");
 286         add_flag(&cppflags_obst, "-D__WCHAR_TYPE__=%s",
 287                  type_to_string(type_wchar_t));
 288         add_flag(&cppflags_obst, "-U__SIZE_TYPE__");
 289         add_flag(&cppflags_obst, "-D__SIZE_TYPE__=%s", type_to_string(type_size_t));
 290
 291         /* handle dependency generation */
 292         if (dep_target[0] != '\0') {
 293                 add_flag(&cppflags_obst, "-MF");
 294                 add_flag(&cppflags_obst, "%s", dep_target);
 295                 if (outname != NULL) {
 296                                 add_flag(&cppflags_obst, "-MQ");
 297                                 add_flag(&cppflags_obst, "%s", outname);
 298                 }
 299         }
 300         if (flags[0] != '\0') {
 301                 obstack_printf(&cppflags_obst, " %s", flags);
 302         }
 303         add_flag(&cppflags_obst, "%s", fname);
 304
 305         obstack_1grow(&cppflags_obst, '\0');
 306         const char *buf = obstack_finish(&cppflags_obst);
 307         if(verbose) {
 308                 puts(buf);
 309         }
 310
 311         FILE *f = popen(buf, "r");
 312         if(f == NULL) {
 313                 fprintf(stderr, "invoking preprocessor failed\n");
 314                 exit(1);
 315         }
 316
 317         return f;
 318 }
 319
 320 static void assemble(const char *out, const char *in)
 321 {
 322         char buf[4096];
 323
 324         snprintf(buf, sizeof(buf), "%s %s -o %s", ASSEMBLER, in, out);
 325         if(verbose) {
 326                 puts(buf);
 327         }
 328
 329         int err = system(buf);
 330         if(err != 0) {
 331                 fprintf(stderr, "assembler reported an error\n");
 332                 exit(1);
 333         }
 334 }
 335
 336 static const char *try_dir(const char *dir)
 337 {
 338         if(dir == NULL)
 339                 return dir;
 340         if(access(dir, R_OK | W_OK | X_OK) == 0)
 341                 return dir;
 342         return NULL;
 343 }
 344
 345 static const char *get_tempdir(void)
 346 {
 347         static const char *tmpdir = NULL;
 348
 349         if(tmpdir != NULL)
 350                 return tmpdir;
 351
 352         if(tmpdir == NULL)
 353                 tmpdir = try_dir(getenv("TMPDIR"));
 354         if(tmpdir == NULL)
 355                 tmpdir = try_dir(getenv("TMP"));
 356         if(tmpdir == NULL)
 357                 tmpdir = try_dir(getenv("TEMP"));
 358
 359 #ifdef P_tmpdir
 360         if(tmpdir == NULL)
 361                 tmpdir = try_dir(P_tmpdir);
 362 #endif
 363
 364         if(tmpdir == NULL)
 365                 tmpdir = try_dir("/var/tmp");
 366         if(tmpdir == NULL)
 367                 tmpdir = try_dir("/usr/tmp");
 368         if(tmpdir == NULL)
 369                 tmpdir = try_dir("/tmp");
 370
 371         if(tmpdir == NULL)
 372                 tmpdir = ".";
 373
 374         return tmpdir;
 375 }
 376
 377 #ifndef HAVE_MKSTEMP
 378 /* cheap and nasty mkstemp replacement */
 379 static int mkstemp(char *templ)
 380 {
 381         mktemp(templ);
 382         return open(templ, O_RDWR|O_CREAT|O_EXCL|O_BINARY, 0600);
 383 }
 384 #endif
 385
 386 /**
 387  * an own version of tmpnam, which: writes in a buffer, emits no warnings
 388  * during linking (like glibc/gnu ld do for tmpnam)...
 389  */
 390 static FILE *make_temp_file(char *buffer, size_t buflen, const char *prefix)
 391 {
 392         const char *tempdir = get_tempdir();
 393
 394         snprintf(buffer, buflen, "%s/%sXXXXXX", tempdir, prefix);
 395
 396         int fd = mkstemp(buffer);
 397         if(fd == -1) {
 398                 fprintf(stderr, "couldn't create temporary file: %s\n",
 399                         strerror(errno));
 400                 exit(1);
 401         }
 402         FILE *out = fdopen(fd, "w");
 403         if(out == NULL) {
 404                 fprintf(stderr, "couldn't create temporary file FILE*\n");
 405                 exit(1);
 406         }
 407
 408         file_list_entry_t *entry = xmalloc(sizeof(*entry));
 409         memset(entry, 0, sizeof(*entry));
 410
 411         size_t  name_len = strlen(buffer) + 1;
 412         char   *name     = malloc(name_len);
 413         memcpy(name, buffer, name_len);
 414         entry->name      = name;
 415
 416         entry->next = temp_files;
 417         temp_files  = entry;
 418
 419         return out;
 420 }
 421
 422 static void free_temp_files(void)
 423 {
 424         file_list_entry_t *entry = temp_files;
 425         file_list_entry_t *next;
 426         for ( ; entry != NULL; entry = next) {
 427                 next = entry->next;
 428
 429                 unlink(entry->name);
 430                 free((char*) entry->name);
 431                 free(entry);
 432         }
 433         temp_files = NULL;
 434 }
 435
 436 /**
 437  * Do the necessary lowering for compound parameters.
 438  */
 439 void lower_compound_params(void)
 440 {
 441         lower_params_t params;
 442
 443         params.def_ptr_alignment    = 4;
 444         params.flags                = LF_COMPOUND_RETURN | LF_RETURN_HIDDEN;
 445         params.hidden_params        = ADD_HIDDEN_ALWAYS_IN_FRONT;
 446         params.find_pointer_type    = NULL;
 447         params.ret_compound_in_regs = NULL;
 448         lower_calls_with_compounds(&params);
 449 }
 450
 451 typedef enum compile_mode_t {
 452         BenchmarkParser,
 453         PreprocessOnly,
 454         ParseOnly,
 455         Compile,
 456         CompileDump,
 457         CompileAssemble,
 458         CompileAssembleLink,
 459         LexTest,
 460         PrintAst,
 461         PrintFluffy,
 462         PrintCaml
 463 } compile_mode_t;
 464
 465 static void usage(const char *argv0)
 466 {
 467         fprintf(stderr, "Usage %s input [-o output] [-c]\n", argv0);
 468 }
 469
 470 static void print_cparser_version(void) {
 471         firm_version_t ver;
 472         firm_get_version(&ver);
 473
 474         printf("cparser (%s) using libFirm (%u.%u",
 475                 cparser_REVISION, ver.major, ver.minor);
 476         if(ver.revision[0] != 0) {
 477                 putchar(' ');
 478                 fputs(ver.revision, stdout);
 479         }
 480         if(ver.build[0] != 0) {
 481                 putchar(' ');
 482                 fputs(ver.build, stdout);
 483         }
 484         puts(")\n");
 485 }
 486
 487 static void set_be_option(const char *arg)
 488 {
 489         int res = firm_be_option(arg);
 490         (void) res;
 491         assert(res);
 492 }
 493
 494 static void set_option(const char *arg)
 495 {
 496         int res = firm_option(arg);
 497         (void) res;
 498         assert(res);
 499 }
 500
 501 static void copy_file(FILE *dest, FILE *input)
 502 {
 503         char buf[16384];
 504
 505         while (!feof(input) && !ferror(dest)) {
 506                 size_t read = fread(buf, 1, sizeof(buf), input);
 507                 if(fwrite(buf, 1, read, dest) != read) {
 508                         perror("couldn't write output");
 509                 }
 510         }
 511 }
 512
 513 static inline bool streq(char const* a, char const* b)
 514 {
 515         return strcmp(a, b) == 0;
 516 }
 517
 518 static inline bool strstart(char const* str, char const* start)
 519 {
 520         do {
 521                 if (*start == '\0')
 522                         return true;
 523         } while (*str++ == *start++);
 524         return false;
 525 }
 526
 527 static FILE *open_file(const char *filename)
 528 {
 529         if (streq(filename, "-")) {
 530                 return stdin;
 531         }
 532
 533         FILE *in = fopen(filename, "r");
 534         if(in == NULL) {
 535                 fprintf(stderr, "Couldn't open '%s': %s\n", filename,
 536                                 strerror(errno));
 537                 exit(1);
 538         }
 539
 540         return in;
 541 }
 542
 543 static filetype_t get_filetype_from_string(const char *string)
 544 {
 545         if (streq(string, "c") || streq(string, "c-header"))
 546                 return FILETYPE_C;
 547         if (streq(string, "c++") || streq(string, "c++-header"))
 548                 return FILETYPE_CXX;
 549         if (streq(string, "assembler"))
 550                 return FILETYPE_PREPROCESSED_ASSEMBLER;
 551         if (streq(string, "assembler-with-cpp"))
 552                 return FILETYPE_ASSEMBLER;
 553         if (streq(string, "none"))
 554                 return FILETYPE_AUTODETECT;
 555
 556         return FILETYPE_UNKNOWN;
 557 }
 558
 559 static void init_os_support(void)
 560 {
 561         /* OS option must be set to the backend */
 562         switch (firm_opt.os_support) {
 563         case OS_SUPPORT_MINGW:
 564                 set_be_option("ia32-gasmode=mingw");
 565                 wchar_atomic_kind = ATOMIC_TYPE_USHORT;
 566                 break;
 567         case OS_SUPPORT_LINUX:
 568                 set_be_option("ia32-gasmode=elf");
 569                 break;
 570         case OS_SUPPORT_MACHO:
 571                 set_be_option("ia32-gasmode=macho");
 572                 set_be_option("ia32-stackalign=4");
 573                 set_be_option("pic");
 574                 break;
 575         }
 576 }
 577
 578 typedef enum lang_standard_t {
 579         STANDARD_DEFAULT, /* gnu99 (for C, GCC does gnu89) or gnu++98 (for C++) */
 580         STANDARD_ANSI,    /* c89 (for C) or c++98 (for C++) */
 581         STANDARD_C89,     /* ISO C90 (sic) */
 582         STANDARD_C90,     /* ISO C90 as modified in amendment 1 */
 583         STANDARD_C99,     /* ISO C99 */
 584         STANDARD_GNU89,   /* ISO C90 plus GNU extensions (including some C99) */
 585         STANDARD_GNU99,   /* ISO C99 plus GNU extensions */
 586         STANDARD_CXX98,   /* ISO C++ 1998 plus amendments */
 587         STANDARD_GNUXX98  /* ISO C++ 1998 plus amendments and GNU extensions */
 588 } lang_standard_t;
 589
 590 int main(int argc, char **argv)
 591 {
 592         initialize_firm();
 593
 594         const char        *dumpfunction         = NULL;
 595         compile_mode_t     mode                 = CompileAssembleLink;
 596         int                opt_level            = 1;
 597         int                result               = EXIT_SUCCESS;
 598         char               cpu_arch[16]         = "ia32";
 599         file_list_entry_t *files                = NULL;
 600         file_list_entry_t *last_file            = NULL;
 601         bool               construct_dep_target = false;
 602         struct obstack     file_obst;
 603
 604         atexit(free_temp_files);
 605
 606         /* hack for now... */
 607         if (strstr(argv[0], "pptest") != NULL) {
 608                 extern int pptest_main(int argc, char **argv);
 609                 return pptest_main(argc, argv);
 610         }
 611
 612         obstack_init(&cppflags_obst);
 613         obstack_init(&ldflags_obst);
 614         obstack_init(&file_obst);
 615
 616 #define GET_ARG_AFTER(def, args)                                             \
 617         def = &arg[sizeof(args)-1];                                              \
 618         if(def[0] == '\0') {                                                     \
 619                 ++i;                                                                 \
 620                 if(i >= argc) {                                                      \
 621                         fprintf(stderr, "error: expected argument after '" args "'\n");  \
 622                         argument_errors = true;                                          \
 623                         break;                                                           \
 624                 }                                                                    \
 625                 def = argv[i];                                                       \
 626                 if(def[0] == '-' && def[1] != '\0') {                                \
 627                         fprintf(stderr, "error: expected argument after '" args "'\n");  \
 628                         argument_errors = true;                                          \
 629                         continue;                                                        \
 630                 }                                                                    \
 631         }
 632
 633 #define SINGLE_OPTION(ch) (option[0] == (ch) && option[1] == '\0')
 634
 635         /* early options parsing (find out optimisation level and OS) */
 636         for (int i = 1; i < argc; ++i) {
 637                 const char *arg = argv[i];
 638                 if(arg[0] != '-')
 639                         continue;
 640
 641                 const char *option = &arg[1];
 642                 if (option[0] == 'O') {
 643                         sscanf(&option[1], "%d", &opt_level);
 644                 }
 645                 if (strcmp(arg, "-fwin32") == 0) {
 646                         firm_opt.os_support = OS_SUPPORT_MINGW;
 647                 } else if (strcmp(arg, "-fmac") == 0) {
 648                         firm_opt.os_support = OS_SUPPORT_MACHO;
 649                 } else if (strcmp(arg, "-flinux") == 0) {
 650                         firm_opt.os_support = OS_SUPPORT_LINUX;
 651                 }
 652         }
 653
 654         /* set target/os specific stuff */
 655         init_os_support();
 656
 657         /* apply optimisation level */
 658         switch(opt_level) {
 659         case 0:
 660                 set_option("no-opt");
 661                 break;
 662         case 1:
 663                 set_option("no-inline");
 664                 break;
 665         default:
 666         case 4:
 667                 set_option("strict-aliasing");
 668                 /* use_builtins = true; */
 669                 /* fallthrough */
 670         case 3:
 671                 set_option("cond-eval");
 672                 set_option("if-conv");
 673                 /* fallthrough */
 674         case 2:
 675                 set_option("inline");
 676                 set_option("deconv");
 677                 set_be_option("omitfp");
 678                 break;
 679         }
 680
 681         /* parse rest of options */
 682         lang_standard_t standard        = STANDARD_DEFAULT;
 683         lang_features_t features_on     = 0;
 684         lang_features_t features_off    = 0;
 685         filetype_t      forced_filetype = FILETYPE_AUTODETECT;
 686         bool            help_displayed  = false;
 687         bool            argument_errors = false;
 688         for(int i = 1; i < argc; ++i) {
 689                 const char *arg = argv[i];
 690                 if (arg[0] == '-' && arg[1] != '\0') {
 691                         /* an option */
 692                         const char *option = &arg[1];
 693                         if(option[0] == 'o') {
 694                                 GET_ARG_AFTER(outname, "-o");
 695                         } else if(option[0] == 'g') {
 696                                 set_be_option("debuginfo=stabs");
 697                                 set_be_option("omitfp=no");
 698                                 set_be_option("ia32-nooptcc=yes");
 699                         } else if(SINGLE_OPTION('c')) {
 700                                 mode = CompileAssemble;
 701                         } else if(SINGLE_OPTION('E')) {
 702                                 mode = PreprocessOnly;
 703                         } else if(SINGLE_OPTION('S')) {
 704                                 mode = Compile;
 705                         } else if(option[0] == 'O') {
 706                                 continue;
 707                         } else if(option[0] == 'I') {
 708                                 const char *opt;
 709                                 GET_ARG_AFTER(opt, "-I");
 710                                 add_flag(&cppflags_obst, "-I%s", opt);
 711                         } else if(option[0] == 'D') {
 712                                 const char *opt;
 713                                 GET_ARG_AFTER(opt, "-D");
 714                                 add_flag(&cppflags_obst, "-D%s", opt);
 715                         } else if(option[0] == 'U') {
 716                                 const char *opt;
 717                                 GET_ARG_AFTER(opt, "-U");
 718                                 add_flag(&cppflags_obst, "-U%s", opt);
 719                         } else if(option[0] == 'l') {
 720                                 const char *opt;
 721                                 GET_ARG_AFTER(opt, "-l");
 722                                 add_flag(&ldflags_obst, "-l%s", opt);
 723                         } else if(option[0] == 'L') {
 724                                 const char *opt;
 725                                 GET_ARG_AFTER(opt, "-L");
 726                                 add_flag(&ldflags_obst, "-L%s", opt);
 727                         } else if(SINGLE_OPTION('v')) {
 728                                 verbose = 1;
 729                         } else if(SINGLE_OPTION('w')) {
 730                                 memset(&warning, 0, sizeof(warning));
 731                         } else if(option[0] == 'x') {
 732                                 const char *opt;
 733                                 GET_ARG_AFTER(opt, "-x");
 734                                 forced_filetype = get_filetype_from_string(opt);
 735                                 if (forced_filetype == FILETYPE_UNKNOWN) {
 736                                         fprintf(stderr, "Unknown language '%s'\n", opt);
 737                                         argument_errors = true;
 738                                 }
 739                         } else if (streq(option, "M")) {
 740                                 mode = PreprocessOnly;
 741                                 add_flag(&cppflags_obst, "-M");
 742                         } else if (streq(option, "MMD") ||
 743                                    streq(option, "MD")) {
 744                             construct_dep_target = true;
 745                                 add_flag(&cppflags_obst, "-%s", option);
 746                         } else if(streq(option, "MM")  ||
 747                                    streq(option, "MP")) {
 748                                 add_flag(&cppflags_obst, "-%s", option);
 749                         } else if (streq(option, "MT") ||
 750                                    streq(option, "MQ") ||
 751                                    streq(option, "MF")) {
 752                                 const char *opt;
 753                                 GET_ARG_AFTER(opt, "-MT");
 754                                 add_flag(&cppflags_obst, "-%s", option);
 755                                 add_flag(&cppflags_obst, "%s", opt);
 756                         } else if (streq(option, "pipe")) {
 757                                 /* here for gcc compatibility */
 758                         } else if (option[0] == 'f') {
 759                                 char const *orig_opt;
 760                                 GET_ARG_AFTER(orig_opt, "-f");
 761
 762                                 if (strstart(orig_opt, "align-loops=") ||
 763                                     strstart(orig_opt, "align-jumps=") ||
 764                                     strstart(orig_opt, "align-functions=")) {
 765                                         fprintf(stderr, "ignoring gcc option '-f%s'\n", orig_opt);
 766                                 } else {
 767                                         char const *opt         = orig_opt;
 768                                         bool        truth_value = true;
 769                                         if (opt[0] == 'n' && opt[1] == 'o' && opt[2] == '-') {
 770                                                 truth_value = false;
 771                                                 opt += 3;
 772                                         }
 773
 774                                         if (streq(opt, "dollars-in-identifiers")) {
 775                                                 allow_dollar_in_symbol = truth_value;
 776                                         } if (streq(opt, "builtins")) {
 777                                                 use_builtins = truth_value;
 778                                         } else if (streq(opt, "short-wchar")) {
 779                                                 wchar_atomic_kind = truth_value ? ATOMIC_TYPE_USHORT
 780                                                         : ATOMIC_TYPE_INT;
 781                                         } else if (streq(opt, "syntax-only")) {
 782                                                 mode = truth_value ? ParseOnly : CompileAssembleLink;
 783                                         } else if (streq(opt, "omit-frame-pointer")) {
 784                                                 set_be_option(truth_value ? "omitfp" : "omitfp=no");
 785                                         } else if (streq(opt, "strength-reduce")) {
 786                                                 firm_option(truth_value ? "strength-red" : "no-strength-red");
 787                                         } else if (streq(opt, "fast-math")               ||
 788                                                    streq(opt, "jump-tables")             ||
 789                                                    streq(opt, "unroll-loops")            ||
 790                                                    streq(opt, "expensive-optimizations") ||
 791                                                    streq(opt, "common")                  ||
 792                                                    streq(opt, "PIC")                     ||
 793                                                    streq(opt, "align-loops")             ||
 794                                                    streq(opt, "align-jumps")             ||
 795                                                    streq(opt, "align-functions")) {
 796                                                 fprintf(stderr, "ignoring gcc option '-f%s'\n", orig_opt);
 797                                         } else {
 798                                                 int res = firm_option(orig_opt);
 799                                                 if (res == 0) {
 800                                                         fprintf(stderr, "error: unknown Firm option '-f%s'\n",
 801                                                                 orig_opt);
 802                                                         argument_errors = true;
 803                                                         continue;
 804                                                 } else if (res == -1) {
 805                                                         help_displayed = true;
 806                                                 }
 807                                         }
 808                                 }
 809                         } else if (option[0] == 'b') {
 810                                 const char *opt;
 811                                 GET_ARG_AFTER(opt, "-b");
 812                                 int res = firm_be_option(opt);
 813                                 if (res == 0) {
 814                                         fprintf(stderr, "error: unknown Firm backend option '-b %s'\n",
 815                                                 opt);
 816                                         argument_errors = true;
 817                                 } else if (res == -1) {
 818                                         help_displayed = true;
 819                                 } else if (strstart(opt, "isa=")) {
 820                                         strncpy(cpu_arch, opt, sizeof(cpu_arch));
 821                                 }
 822                         } else if (option[0] == 'W') {
 823                                 if (strstart(option + 1, "l,")) // a gcc-style linker option
 824                                 {
 825                                         const char *opt;
 826                                         GET_ARG_AFTER(opt, "-Wl,");
 827                                         add_flag(&ldflags_obst, "-Wl,%s", opt);
 828                                 }
 829                                 else set_warning_opt(&option[1]);
 830                         } else if(option[0] == 'm') {
 831                                 /* -m options */
 832                                 const char *opt;
 833                                 char arch_opt[64];
 834
 835                                 GET_ARG_AFTER(opt, "-m");
 836                                 if (strstart(opt, "arch=")) {
 837                                         GET_ARG_AFTER(opt, "-march=");
 838                                         snprintf(arch_opt, sizeof(arch_opt), "%s-arch=%s", cpu_arch, opt);
 839                                         int res = firm_be_option(arch_opt);
 840                                         if (res == 0)
 841                                                 argument_errors = true;
 842                                         else {
 843                                                 snprintf(arch_opt, sizeof(arch_opt), "%s-opt=%s", cpu_arch, opt);
 844                                                 int res = firm_be_option(arch_opt);
 845                                                 if (res == 0)
 846                                                         argument_errors = true;
 847                                         }
 848                                 } else if (strstart(opt, "tune=")) {
 849                                         GET_ARG_AFTER(opt, "-mtune=");
 850                                         snprintf(arch_opt, sizeof(arch_opt), "%s-opt=%s", cpu_arch, opt);
 851                                         int res = firm_be_option(arch_opt);
 852                                         if (res == 0)
 853                                                 argument_errors = true;
 854                                 } else if (strstart(opt, "cpu=")) {
 855                                         GET_ARG_AFTER(opt, "-mcpu=");
 856                                         snprintf(arch_opt, sizeof(arch_opt), "%s-arch=%s", cpu_arch, opt);
 857                                         int res = firm_be_option(arch_opt);
 858                                         if (res == 0)
 859                                                 argument_errors = true;
 860                                 } else if (strstart(opt, "fpmath=")) {
 861                                         GET_ARG_AFTER(opt, "-mfpmath=");
 862                                         if (streq(opt, "387"))
 863                                                 opt = "x87";
 864                                         else if (streq(opt, "sse"))
 865                                                 opt = "sse2";
 866                                         else {
 867                                                 fprintf(stderr, "error: option -mfpumath supports only 387 or sse\n");
 868                                                 argument_errors = true;
 869                                         }
 870                                         if(!argument_errors) {
 871                                                 snprintf(arch_opt, sizeof(arch_opt), "%s-fpunit=%s", cpu_arch, opt);
 872                                                 int res = firm_be_option(arch_opt);
 873                                                 if (res == 0)
 874                                                         argument_errors = true;
 875                                         }
 876                                 } else if (strstart(opt, "preferred-stack-boundary=")) {
 877                                         GET_ARG_AFTER(opt, "-mpreferred-stack-boundary=");
 878                                         snprintf(arch_opt, sizeof(arch_opt), "%s-stackalign=%s", cpu_arch, opt);
 879                                         int res = firm_be_option(arch_opt);
 880                                         if (res == 0)
 881                                                 argument_errors = true;
 882                                 } else if (streq(opt, "omit-leaf-frame-pointer")) {
 883                                         set_be_option("omitleaffp=1");
 884                                 } else if (streq(opt, "no-omit-leaf-frame-pointer")) {
 885                                         set_be_option("omitleaffp=0");
 886                                 } else {
 887                                         char *endptr;
 888                                         long int value = strtol(opt, &endptr, 10);
 889                                         if (*endptr != '\0') {
 890                                                 fprintf(stderr, "error: wrong option '-m %s'\n",  opt);
 891                                                 argument_errors = true;
 892                                         }
 893                                         if (value != 16 && value != 32 && value != 64) {
 894                                                 fprintf(stderr, "error: option -m supports only 16, 32 or 64\n");
 895                                                 argument_errors = true;
 896                                         } else {
 897                                                 machine_size = (unsigned int)value;
 898                                         }
 899                                 }
 900                         } else if (streq(option, "pg")) {
 901                                 set_be_option("gprof");
 902                                 add_flag(&ldflags_obst, "-pg");
 903                         } else if (streq(option, "pedantic") ||
 904                                    streq(option, "ansi")) {
 905                                 fprintf(stderr, "warning: ignoring gcc option '%s'\n", arg);
 906                         } else if (streq(option, "shared")) {
 907                                 add_flag(&ldflags_obst, "-shared");
 908                         } else if (strstart(option, "std=")) {
 909                                 const char *const o = &option[4];
 910                                 standard =
 911                                         streq(o, "c++")            ? STANDARD_CXX98   :
 912                                         streq(o, "c++98")          ? STANDARD_CXX98   :
 913                                         streq(o, "c89")            ? STANDARD_C89     :
 914                                         streq(o, "c99")            ? STANDARD_C99     :
 915                                         streq(o, "c9x")            ? STANDARD_C99     : // deprecated
 916                                         streq(o, "gnu++98")        ? STANDARD_GNUXX98 :
 917                                         streq(o, "gnu89")          ? STANDARD_GNU89   :
 918                                         streq(o, "gnu99")          ? STANDARD_GNU99   :
 919                                         streq(o, "gnu9x")          ? STANDARD_GNU99   : // deprecated
 920                                         streq(o, "iso9899:1990")   ? STANDARD_C89     :
 921                                         streq(o, "iso9899:199409") ? STANDARD_C90     :
 922                                         streq(o, "iso9899:1999")   ? STANDARD_C99     :
 923                                         streq(o, "iso9899:199x")   ? STANDARD_C99     : // deprecated
 924                                         (fprintf(stderr, "warning: ignoring gcc option '%s'\n", arg), standard);
 925                         } else if (streq(option, "version")) {
 926                                 print_cparser_version();
 927                         } else if (option[0] == '-') {
 928                                 /* double dash option */
 929                                 ++option;
 930                                 if (streq(option, "gcc")) {
 931                                         features_on  |=  _GNUC;
 932                                         features_off &= ~_GNUC;
 933                                 } else if (streq(option, "no-gcc")) {
 934                                         features_on  &= ~_GNUC;
 935                                         features_off |=  _GNUC;
 936                                 } else if (streq(option, "ms")) {
 937                                         features_on  |=  _MS;
 938                                         features_off &= ~_MS;
 939                                 } else if (streq(option, "no-ms")) {
 940                                         features_on  &= ~_MS;
 941                                         features_off |=  _MS;
 942                                 } else if (streq(option, "signed-chars")) {
 943                                         char_is_signed = true;
 944                                 } else if (streq(option, "unsigned-chars")) {
 945                                         char_is_signed = false;
 946                                 } else if (streq(option, "strict")) {
 947                                         strict_mode = true;
 948                                 } else if (streq(option, "lextest")) {
 949                                         mode = LexTest;
 950                                 } else if (streq(option, "benchmark")) {
 951                                         mode = BenchmarkParser;
 952                                 } else if (streq(option, "print-ast")) {
 953                                         mode = PrintAst;
 954                                 } else if (streq(option, "print-implicit-cast")) {
 955                                         print_implicit_casts = true;
 956                                 } else if (streq(option, "print-parenthesis")) {
 957                                         print_parenthesis = true;
 958                                 } else if (streq(option, "print-fluffy")) {
 959                                         mode = PrintFluffy;
 960                                 } else if (streq(option, "print-caml")) {
 961                                         mode = PrintCaml;
 962                                 } else if (streq(option, "version")) {
 963                                         print_cparser_version();
 964                                         exit(EXIT_SUCCESS);
 965                                 } else if (streq(option, "dump-function")) {
 966                                         ++i;
 967                                         if(i >= argc) {
 968                                                 fprintf(stderr, "error: "
 969                                                         "expected argument after '--dump-function'\n");
 970                                                 argument_errors = true;
 971                                                 break;
 972                                         }
 973                                         dumpfunction = argv[i];
 974                                         mode         = CompileDump;
 975                                 } else {
 976                                         fprintf(stderr, "error: unknown argument '%s'\n", arg);
 977                                         argument_errors = true;
 978                                 }
 979                         } else {
 980                                 fprintf(stderr, "error: unknown argument '%s'\n", arg);
 981                                 argument_errors = true;
 982                         }
 983                 } else {
 984                         filetype_t type = forced_filetype;
 985                         if (type == FILETYPE_AUTODETECT) {
 986                                 if (streq(arg, "-")) {
 987                                         /* - implicitly means C source file */
 988                                         type = FILETYPE_C;
 989                                 } else {
 990                                         const char *suffix = strrchr(arg, '.');
 991                                         /* Ensure there is at least one char before the suffix */
 992                                         if (suffix != NULL && suffix != arg) {
 993                                                 ++suffix;
 994                                                 type =
 995                                                         streq(suffix, "S")   ? FILETYPE_ASSEMBLER              :
 996                                                         streq(suffix, "a")   ? FILETYPE_OBJECT                 :
 997                                                         streq(suffix, "c")   ? FILETYPE_C                      :
 998                                                         streq(suffix, "cc")  ? FILETYPE_CXX                    :
 999                                                         streq(suffix, "cpp") ? FILETYPE_CXX                    :
1000                                                         streq(suffix, "cxx") ? FILETYPE_CXX                    :
1001                                                         streq(suffix, "h")   ? FILETYPE_C                      :
1002                                                         streq(suffix, "o")   ? FILETYPE_OBJECT                 :
1003                                                         streq(suffix, "s")   ? FILETYPE_PREPROCESSED_ASSEMBLER :
1004                                                         streq(suffix, "so")  ? FILETYPE_OBJECT                 :
1005                                                         FILETYPE_AUTODETECT;
1006                                         }
1007                                 }
1008
1009                                 if (type == FILETYPE_AUTODETECT) {
1010                                         fprintf(stderr, "'%s': file format not recognized\n", arg);
1011                                         continue;
1012                                 }
1013                         }
1014
1015                         file_list_entry_t *entry
1016                                 = obstack_alloc(&file_obst, sizeof(entry[0]));
1017                         memset(entry, 0, sizeof(entry[0]));
1018                         entry->name = arg;
1019                         entry->type = type;
1020
1021                         if (last_file != NULL) {
1022                                 last_file->next = entry;
1023                         } else {
1024                                 files = entry;
1025                         }
1026                         last_file = entry;
1027                 }
1028         }
1029
1030         if (files == NULL) {
1031                 fprintf(stderr, "error: no input files specified\n");
1032                 argument_errors = true;
1033         }
1034
1035         if (help_displayed) {
1036                 return !argument_errors;
1037         }
1038         if (argument_errors) {
1039                 usage(argv[0]);
1040                 return 1;
1041         }
1042
1043         /* we do the lowering in ast2firm */
1044         firm_opt.lower_bitfields = FALSE;
1045
1046         gen_firm_init();
1047         init_symbol_table();
1048         init_types();
1049         init_typehash();
1050         init_basic_types();
1051         init_lexer();
1052         init_ast();
1053         init_parser();
1054         init_ast2firm();
1055         init_mangle();
1056
1057         if (construct_dep_target) {
1058                 if (outname != 0 && strlen(outname) >= 2) {
1059                         get_output_name(dep_target, sizeof(dep_target), outname, ".d");
1060                 } else {
1061                         get_output_name(dep_target, sizeof(dep_target), files->name, ".d");
1062                 }
1063         } else {
1064                 dep_target[0] = '\0';
1065         }
1066
1067         char outnamebuf[4096];
1068         if (outname == NULL) {
1069                 const char *filename = files->name;
1070
1071                 switch(mode) {
1072                 case BenchmarkParser:
1073                 case PrintAst:
1074                 case PrintFluffy:
1075                 case PrintCaml:
1076                 case LexTest:
1077                 case PreprocessOnly:
1078                 case ParseOnly:
1079                         outname = "-";
1080                         break;
1081                 case Compile:
1082                         get_output_name(outnamebuf, sizeof(outnamebuf), filename, ".s");
1083                         outname = outnamebuf;
1084                         break;
1085                 case CompileAssemble:
1086                         get_output_name(outnamebuf, sizeof(outnamebuf), filename, ".o");
1087                         outname = outnamebuf;
1088                         break;
1089                 case CompileDump:
1090                         get_output_name(outnamebuf, sizeof(outnamebuf), dumpfunction,
1091                                         ".vcg");
1092                         outname = outnamebuf;
1093                         break;
1094                 case CompileAssembleLink:
1095 #ifdef _WIN32
1096                         outname = "a.exe";
1097 #else
1098                         outname = "a.out";
1099 #endif
1100                         break;
1101                 }
1102         }
1103
1104         assert(outname != NULL);
1105
1106         FILE *out;
1107         if (streq(outname, "-")) {
1108                 out = stdout;
1109         } else {
1110                 out = fopen(outname, "w");
1111                 if(out == NULL) {
1112                         fprintf(stderr, "Couldn't open '%s' for writing: %s\n", outname,
1113                                         strerror(errno));
1114                         return 1;
1115                 }
1116         }
1117
1118         file_list_entry_t *file;
1119         for (file = files; file != NULL; file = file->next) {
1120                 char        asm_tempfile[1024];
1121                 const char *filename = file->name;
1122                 filetype_t  filetype = file->type;
1123
1124                 if (filetype == FILETYPE_OBJECT)
1125                         continue;
1126
1127                 FILE *in = NULL;
1128                 if (mode == LexTest) {
1129                         if (in == NULL)
1130                                 in = open_file(filename);
1131                         lextest(in, filename);
1132                         fclose(in);
1133                         exit(EXIT_SUCCESS);
1134                 }
1135
1136                 FILE *preprocessed_in = NULL;
1137                 switch (filetype) {
1138                         case FILETYPE_C:         filetype = FILETYPE_PREPROCESSED_C;         goto preprocess;
1139                         case FILETYPE_CXX:       filetype = FILETYPE_PREPROCESSED_CXX;       goto preprocess;
1140                         case FILETYPE_ASSEMBLER: filetype = FILETYPE_PREPROCESSED_ASSEMBLER; goto preprocess;
1141 preprocess:
1142                                 /* no support for input on FILE* yet */
1143                                 if (in != NULL)
1144                                         panic("internal compiler error: in for preprocessor != NULL");
1145
1146                                 preprocessed_in = preprocess(filename);
1147                                 if (mode == PreprocessOnly) {
1148                                         copy_file(out, preprocessed_in);
1149                                         int result = pclose(preprocessed_in);
1150                                         fclose(out);
1151                                         return result;
1152                                 }
1153
1154                                 in = preprocessed_in;
1155                                 break;
1156
1157                         default:
1158                                 break;
1159                 }
1160
1161                 FILE *asm_out;
1162                 if(mode == Compile) {
1163                         asm_out = out;
1164                 } else {
1165                         asm_out = make_temp_file(asm_tempfile, sizeof(asm_tempfile), "ccs");
1166                 }
1167
1168                 if (in == NULL)
1169                         in = open_file(filename);
1170
1171                 /* preprocess and compile */
1172                 if (filetype == FILETYPE_PREPROCESSED_C) {
1173                         char const* invalid_mode;
1174                         switch (standard) {
1175                                 case STANDARD_ANSI:
1176                                 case STANDARD_C89:   c_mode = _C89;                break;
1177                                 /* TODO ^v determine difference between these two */
1178                                 case STANDARD_C90:   c_mode = _C89;                break;
1179                                 case STANDARD_C99:   c_mode = _C89 | _C99;         break;
1180                                 case STANDARD_GNU89: c_mode = _C89 |        _GNUC; break;
1181
1182 default_c_warn:
1183                                         fprintf(stderr,
1184                                                         "warning: command line option \"-std=%s\" is not valid for C\n",
1185                                                         invalid_mode);
1186                                         /* FALLTHROUGH */
1187                                 case STANDARD_DEFAULT:
1188                                 case STANDARD_GNU99:   c_mode = _C89 | _C99 | _GNUC; break;
1189
1190                                 case STANDARD_CXX98:   invalid_mode = "c++98"; goto default_c_warn;
1191                                 case STANDARD_GNUXX98: invalid_mode = "gnu98"; goto default_c_warn;
1192                         }
1193                         goto do_parsing;
1194                 } else if (filetype == FILETYPE_PREPROCESSED_CXX) {
1195                         char const* invalid_mode;
1196                         switch (standard) {
1197                                 case STANDARD_C89:   invalid_mode = "c89";   goto default_cxx_warn;
1198                                 case STANDARD_C90:   invalid_mode = "c90";   goto default_cxx_warn;
1199                                 case STANDARD_C99:   invalid_mode = "c99";   goto default_cxx_warn;
1200                                 case STANDARD_GNU89: invalid_mode = "gnu89"; goto default_cxx_warn;
1201                                 case STANDARD_GNU99: invalid_mode = "gnu99"; goto default_cxx_warn;
1202
1203                                 case STANDARD_ANSI:
1204                                 case STANDARD_CXX98: c_mode = _CXX; break;
1205
1206 default_cxx_warn:
1207                                         fprintf(stderr,
1208                                                         "warning: command line option \"-std=%s\" is not valid for C++\n",
1209                                                         invalid_mode);
1210                                 case STANDARD_DEFAULT:
1211                                 case STANDARD_GNUXX98: c_mode = _CXX | _GNUC; break;
1212                         }
1213
1214 do_parsing:
1215                         c_mode |= features_on;
1216                         c_mode &= ~features_off;
1217                         init_tokens();
1218                         translation_unit_t *const unit = do_parsing(in, filename);
1219
1220                         /* prints the AST even if errors occurred */
1221                         if (mode == PrintAst) {
1222                                 type_set_output(out);
1223                                 ast_set_output(out);
1224                                 print_ast(unit);
1225                         }
1226
1227                         if(error_count > 0) {
1228                                 /* parsing failed because of errors */
1229                                 fprintf(stderr, "%u error(s), %u warning(s)\n", error_count,
1230                                         warning_count);
1231                                 result = EXIT_FAILURE;
1232                                 continue;
1233                         } else if(warning_count > 0) {
1234                                 fprintf(stderr, "%u warning(s)\n", warning_count);
1235                         }
1236
1237                         if (in == preprocessed_in) {
1238                                 int pp_result = pclose(preprocessed_in);
1239                                 if (pp_result != EXIT_SUCCESS) {
1240                                         exit(EXIT_FAILURE);
1241                                 }
1242                         }
1243
1244                         if(mode == BenchmarkParser) {
1245                                 return result;
1246                         } else if(mode == PrintFluffy) {
1247                                 write_fluffy_decls(out, unit);
1248                                 continue;
1249                         } else if (mode == PrintCaml) {
1250                                 write_caml_decls(out, unit);
1251                                 continue;
1252                         }
1253
1254                         translation_unit_to_firm(unit);
1255
1256                         if (mode == ParseOnly) {
1257                                 continue;
1258                         }
1259
1260                         if (mode == CompileDump) {
1261                                 /* find irg */
1262                                 ident    *id     = new_id_from_str(dumpfunction);
1263                                 ir_graph *irg    = NULL;
1264                                 int       n_irgs = get_irp_n_irgs();
1265                                 for(int i = 0; i < n_irgs; ++i) {
1266                                         ir_graph *tirg   = get_irp_irg(i);
1267                                         ident    *irg_id = get_entity_ident(get_irg_entity(tirg));
1268                                         if(irg_id == id) {
1269                                                 irg = tirg;
1270                                                 break;
1271                                         }
1272                                 }
1273
1274                                 if(irg == NULL) {
1275                                         fprintf(stderr, "No graph for function '%s' found\n",
1276                                                 dumpfunction);
1277                                         exit(1);
1278                                 }
1279
1280                                 dump_ir_block_graph_file(irg, out);
1281                                 fclose(out);
1282                                 exit(0);
1283                         }
1284
1285                         gen_firm_finish(asm_out, filename, /*c_mode=*/1,
1286                                         have_const_functions);
1287                         if (asm_out != out) {
1288                                 fclose(asm_out);
1289                         }
1290                 } else if (filetype == FILETYPE_PREPROCESSED_ASSEMBLER) {
1291                         copy_file(asm_out, in);
1292                         if (in == preprocessed_in) {
1293                                 int pp_result = pclose(preprocessed_in);
1294                                 if (pp_result != EXIT_SUCCESS) {
1295                                         return pp_result;
1296                                 }
1297                         }
1298                         if(asm_out != out) {
1299                                 fclose(asm_out);
1300                         }
1301                 }
1302
1303                 if (mode == Compile)
1304                         continue;
1305
1306                 /* if we're here then we have preprocessed assembly */
1307                 filename = asm_tempfile;
1308                 filetype = FILETYPE_PREPROCESSED_ASSEMBLER;
1309
1310                 /* assemble */
1311                 if (filetype == FILETYPE_PREPROCESSED_ASSEMBLER) {
1312                         char        temp[1024];
1313                         const char *filename_o;
1314                         if(mode == CompileAssemble) {
1315                                 fclose(out);
1316                                 filename_o = outname;
1317                         } else {
1318                                 FILE *tempf = make_temp_file(temp, sizeof(temp), "cco");
1319                                 fclose(tempf);
1320                                 filename_o = temp;
1321                         }
1322
1323                         assemble(filename_o, filename);
1324
1325                         size_t len = strlen(filename_o) + 1;
1326                         filename = obstack_copy(&file_obst, filename_o, len);
1327                         filetype = FILETYPE_OBJECT;
1328                 }
1329
1330                 /* ok we're done here, process next file */
1331                 file->name = filename;
1332                 file->type = filetype;
1333         }
1334
1335         if (result != EXIT_SUCCESS)
1336                 return result;
1337
1338         /* link program file */
1339         if(mode == CompileAssembleLink) {
1340                 obstack_1grow(&ldflags_obst, '\0');
1341                 const char *flags = obstack_finish(&ldflags_obst);
1342
1343                 /* construct commandline */
1344                 obstack_printf(&file_obst, "%s", LINKER);
1345                 for (file_list_entry_t *entry = files; entry != NULL;
1346                                 entry = entry->next) {
1347                         if (entry->type != FILETYPE_OBJECT)
1348                                 continue;
1349
1350                         add_flag(&file_obst, "%s", entry->name);
1351                 }
1352
1353                 add_flag(&file_obst, "-o");
1354                 add_flag(&file_obst, outname);
1355                 obstack_printf(&file_obst, "%s", flags);
1356                 obstack_1grow(&file_obst, '\0');
1357
1358                 char *commandline = obstack_finish(&file_obst);
1359
1360                 if(verbose) {
1361                         puts(commandline);
1362                 }
1363                 int err = system(commandline);
1364                 if(err != EXIT_SUCCESS) {
1365                         fprintf(stderr, "linker reported an error\n");
1366                         exit(1);
1367                 }
1368         }
1369
1370         obstack_free(&cppflags_obst, NULL);
1371         obstack_free(&ldflags_obst, NULL);
1372         obstack_free(&file_obst, NULL);
1373
1374         exit_mangle();
1375         exit_ast2firm();
1376         exit_parser();
1377         exit_ast();
1378         exit_lexer();
1379         exit_typehash();
1380         exit_types();
1381         exit_tokens();
1382         exit_symbol_table();
1383         return 0;
1384 }