2 Copyright (C) 1986, 1987, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
3 1999, 2000 Free Software Foundation, Inc.
4 Contributed by Per Bothner, 1994-95.
5 Based on CCCP program by Paul Rubin, June 1986
6 Adapted to ANSI C, Richard Stallman, Jan 1987
8 This program is free software; you can redistribute it and/or modify it
9 under the terms of the GNU General Public License as published by the
10 Free Software Foundation; either version 2, or (at your option) any
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
31 #include "cppdefault.h"
33 /* Predefined symbols, built-in macros, and the default include path. */
35 #ifndef GET_ENV_PATH_LIST
36 #define GET_ENV_PATH_LIST(VAR,NAME) do { (VAR) = getenv (NAME); } while (0)
39 /* Windows does not natively support inodes, and neither does MSDOS.
40 Cygwin's emulation can generate non-unique inodes, so don't use it.
41 VMS has non-numeric inodes. */
43 #define INO_T_EQ(a, b) (!memcmp (&(a), &(b), sizeof (a)))
44 #elif (defined _WIN32 && ! defined (_UWIN)) || defined __MSDOS__
45 #define INO_T_EQ(a, b) 0
47 #define INO_T_EQ(a, b) ((a) == (b))
50 /* Internal structures and prototypes. */
52 /* A `struct pending_option' remembers one -D, -A, -U, -include, or -imacros
53 switch. There are four lists: one for -D and -U, one for -A, one
54 for -include, one for -imacros. `undef' is set for -U, clear for
55 -D, ignored for the others.
56 (Future: add an equivalent of -U for -A) */
58 typedef void (* cl_directive_handler) PARAMS ((cpp_reader *, const char *));
61 struct pending_option *next;
63 cl_directive_handler handler;
66 /* The `pending' structure accumulates all the options that are not
67 actually processed until we hit cpp_start_read. It consists of
68 several lists, one for each type of option. We keep both head and
69 tail pointers for quick insertion. */
72 struct pending_option *directive_head, *directive_tail;
74 struct file_name_list *quote_head, *quote_tail;
75 struct file_name_list *brack_head, *brack_tail;
76 struct file_name_list *systm_head, *systm_tail;
77 struct file_name_list *after_head, *after_tail;
79 struct pending_option *imacros_head, *imacros_tail;
80 struct pending_option *include_head, *include_tail;
84 #define APPEND(pend, list, elt) \
85 do { if (!(pend)->list##_head) (pend)->list##_head = (elt); \
86 else (pend)->list##_tail->next = (elt); \
87 (pend)->list##_tail = (elt); \
90 #define APPEND(pend, list, elt) \
91 do { if (!(pend)->list/**/_head) (pend)->list/**/_head = (elt); \
92 else (pend)->list/**/_tail->next = (elt); \
93 (pend)->list/**/_tail = (elt); \
97 static void print_help PARAMS ((void));
98 static void path_include PARAMS ((cpp_reader *,
101 static void initialize_builtins PARAMS ((cpp_reader *));
102 static void append_include_chain PARAMS ((cpp_reader *,
103 struct cpp_pending *,
105 static void merge_include_chains PARAMS ((cpp_reader *));
107 static void initialize_dependency_output PARAMS ((cpp_reader *));
108 static void initialize_standard_includes PARAMS ((cpp_reader *));
109 static void new_pending_directive PARAMS ((struct cpp_pending *,
111 cl_directive_handler));
113 static int opt_comp PARAMS ((const void *, const void *));
114 static void sort_options PARAMS ((void));
116 static int parse_option PARAMS ((const char *));
117 static int dump_macros_helper PARAMS ((cpp_reader *, cpp_hashnode *));
119 /* Fourth argument to append_include_chain: chain to use */
120 enum { QUOTE = 0, BRACKET, SYSTEM, AFTER };
122 /* If we have designated initializers (GCC >2.7) this table can be
123 initialized, constant data. Otherwise, it has to be filled in at
126 #if (GCC_VERSION >= 2007)
127 #define init_IStable() /* nothing */
128 #define ISTABLE __extension__ const unsigned char _cpp_IStable[256] = {
130 #define s(p, v) [p] = v,
132 #define ISTABLE unsigned char _cpp_IStable[256] = { 0 }; \
133 static void init_IStable PARAMS ((void)) { \
134 unsigned char *x = _cpp_IStable;
136 #define s(p, v) x[p] = v;
139 #define A(x) s(x, ISidnum|ISidstart)
140 #define N(x) s(x, ISidnum|ISnumstart)
141 #define H(x) s(x, IShspace|ISspace)
142 #define V(x) s(x, ISvspace|ISspace)
143 #define S(x) s(x, ISspace)
148 A('a') A('b') A('c') A('d') A('e') A('f') A('g') A('h') A('i')
149 A('j') A('k') A('l') A('m') A('n') A('o') A('p') A('q') A('r')
150 A('s') A('t') A('u') A('v') A('w') A('x') A('y') A('z')
152 A('A') A('B') A('C') A('D') A('E') A('F') A('G') A('H') A('I')
153 A('J') A('K') A('L') A('M') A('N') A('O') A('P') A('Q') A('R')
154 A('S') A('T') A('U') A('V') A('W') A('X') A('Y') A('Z')
156 N('1') N('2') N('3') N('4') N('5') N('6') N('7') N('8') N('9') N('0')
162 S('\0') S('\v') S('\f')
174 /* Given a colon-separated list of file names PATH,
175 add all the names to the search path for include files. */
178 path_include (pfile, pend, list, path)
180 struct cpp_pending *pend;
190 /* Find the end of this name. */
192 while (*q != 0 && *q != PATH_SEPARATOR) q++;
195 /* An empty name in the path stands for the current directory. */
196 name = (char *) xmalloc (2);
202 /* Otherwise use the directory that is named. */
203 name = (char *) xmalloc (q - p + 1);
204 memcpy (name, p, q - p);
208 append_include_chain (pfile, pend, name, path, 0);
210 /* Advance past this name. */
218 /* Append DIR to include path PATH. DIR must be permanently allocated
221 append_include_chain (pfile, pend, dir, path, cxx_aware)
223 struct cpp_pending *pend;
228 struct file_name_list *new;
232 _cpp_simplify_pathname (dir);
235 /* Dirs that don't exist are silently ignored. */
237 cpp_notice_from_errno (pfile, dir);
238 else if (CPP_OPTION (pfile, verbose))
239 fprintf (stderr, _("ignoring nonexistent directory \"%s\"\n"), dir);
243 if (!S_ISDIR (st.st_mode))
245 cpp_notice (pfile, "%s: Not a directory", dir);
250 if (len > pfile->max_include_len)
251 pfile->max_include_len = len;
253 new = (struct file_name_list *) xmalloc (sizeof (struct file_name_list));
256 new->ino = st.st_ino;
257 new->dev = st.st_dev;
259 new->sysp = cxx_aware ? 1 : 2;
262 new->name_map = NULL;
268 case QUOTE: APPEND (pend, quote, new); break;
269 case BRACKET: APPEND (pend, brack, new); break;
270 case SYSTEM: APPEND (pend, systm, new); break;
271 case AFTER: APPEND (pend, after, new); break;
275 /* Merge the four include chains together in the order quote, bracket,
276 system, after. Remove duplicate dirs (as determined by
277 INO_T_EQ()). The system_include and after_include chains are never
278 referred to again after this function; all access is through the
279 bracket_include path.
281 For the future: Check if the directory is empty (but
282 how?) and possibly preload the include hash. */
285 merge_include_chains (pfile)
288 struct file_name_list *prev, *cur, *other;
289 struct file_name_list *quote, *brack, *systm, *after;
290 struct file_name_list *qtail, *btail, *stail, *atail;
292 struct cpp_pending *pend = CPP_OPTION (pfile, pending);
294 qtail = pend->quote_tail;
295 btail = pend->brack_tail;
296 stail = pend->systm_tail;
297 atail = pend->after_tail;
299 quote = pend->quote_head;
300 brack = pend->brack_head;
301 systm = pend->systm_head;
302 after = pend->after_head;
304 /* Paste together bracket, system, and after include chains. */
314 /* This is a bit tricky.
315 First we drop dupes from the quote-include list.
316 Then we drop dupes from the bracket-include list.
317 Finally, if qtail and brack are the same directory,
320 We can't just merge the lists and then uniquify them because
321 then we may lose directories from the <> search path that should
322 be there; consider -Ifoo -Ibar -I- -Ifoo -Iquux. It is however
323 safe to treat -Ibar -Ifoo -I- -Ifoo -Iquux as if written
324 -Ibar -I- -Ifoo -Iquux.
326 Note that this algorithm is quadratic in the number of -I switches,
327 which is acceptable since there aren't usually that many of them. */
329 for (cur = quote, prev = NULL; cur; cur = cur->next)
331 for (other = quote; other != cur; other = other->next)
332 if (INO_T_EQ (cur->ino, other->ino)
333 && cur->dev == other->dev)
335 if (CPP_OPTION (pfile, verbose))
336 fprintf (stderr, _("ignoring duplicate directory \"%s\"\n"),
339 prev->next = cur->next;
349 for (cur = brack; cur; cur = cur->next)
351 for (other = brack; other != cur; other = other->next)
352 if (INO_T_EQ (cur->ino, other->ino)
353 && cur->dev == other->dev)
355 if (CPP_OPTION (pfile, verbose))
356 fprintf (stderr, _("ignoring duplicate directory \"%s\"\n"),
359 prev->next = cur->next;
370 if (INO_T_EQ (qtail->ino, brack->ino) && qtail->dev == brack->dev)
374 if (CPP_OPTION (pfile, verbose))
375 fprintf (stderr, _("ignoring duplicate directory \"%s\"\n"),
385 while (cur->next != qtail)
388 if (CPP_OPTION (pfile, verbose))
389 fprintf (stderr, _("ignoring duplicate directory \"%s\"\n"),
402 CPP_OPTION (pfile, quote_include) = quote;
403 CPP_OPTION (pfile, bracket_include) = brack;
407 /* Initialize a cpp_reader structure. */
409 cpp_reader_init (pfile)
416 memset ((char *) pfile, 0, sizeof (cpp_reader));
418 pfile->token_buffer_size = 200;
419 pfile->token_buffer = (U_CHAR *) xmalloc (pfile->token_buffer_size);
420 CPP_SET_WRITTEN (pfile, 0);
422 CPP_OPTION (pfile, dollars_in_ident) = 1;
423 CPP_OPTION (pfile, cplusplus_comments) = 1;
424 CPP_OPTION (pfile, warn_import) = 1;
425 CPP_OPTION (pfile, warn_paste) = 1;
426 CPP_OPTION (pfile, digraphs) = 1;
427 CPP_OPTION (pfile, discard_comments) = 1;
428 CPP_OPTION (pfile, show_column) = 1;
429 CPP_OPTION (pfile, tabstop) = 8;
431 CPP_OPTION (pfile, pending) =
432 (struct cpp_pending *) xcalloc (1, sizeof (struct cpp_pending));
434 _cpp_init_macros (pfile);
435 _cpp_init_stacks (pfile);
436 _cpp_init_includes (pfile);
439 /* Initialize a cpp_printer structure. As a side effect, open the
442 cpp_printer_init (pfile, print)
446 memset (print, '\0', sizeof (cpp_printer));
447 if (CPP_OPTION (pfile, out_fname) == NULL)
448 CPP_OPTION (pfile, out_fname) = "";
450 if (CPP_OPTION (pfile, out_fname)[0] == '\0')
451 print->outf = stdout;
454 print->outf = fopen (CPP_OPTION (pfile, out_fname), "w");
457 cpp_notice_from_errno (pfile, CPP_OPTION (pfile, out_fname));
464 /* Free resources used by PFILE.
465 This is the cpp_reader 'finalizer' or 'destructor' (in C++ terminology). */
470 while (CPP_BUFFER (pfile) != NULL)
471 cpp_pop_buffer (pfile);
473 if (pfile->token_buffer)
475 free (pfile->token_buffer);
476 pfile->token_buffer = NULL;
480 deps_free (pfile->deps);
482 if (pfile->spec_nodes)
483 free (pfile->spec_nodes);
485 _cpp_free_temp_tokens (pfile);
486 _cpp_cleanup_includes (pfile);
487 _cpp_cleanup_stacks (pfile);
488 _cpp_cleanup_macros (pfile);
492 /* This structure defines one built-in macro. A node of type TYPE will
493 be entered in the macro hash table under the name NAME, with value
494 VALUE (if any). Two values are not compile time constants, so we tag
495 them in the FLAGS field instead:
496 VERS value is the global version_string, quoted
497 ULP value is the global user_label_prefix
505 unsigned short flags;
511 #define B(n, t) { U n, 0, t, 0, sizeof n - 1 }
512 #define C(n, v) { U n, v, T_MACRO, 0, sizeof n - 1 }
513 #define X(n, f) { U n, 0, T_MACRO, f, sizeof n - 1 }
514 static const struct builtin builtin_array[] =
516 B("__TIME__", T_TIME),
517 B("__DATE__", T_DATE),
518 B("__FILE__", T_FILE),
519 B("__BASE_FILE__", T_BASE_FILE),
520 B("__LINE__", T_SPECLINE),
521 B("__INCLUDE_LEVEL__", T_INCLUDE_LEVEL),
522 B("__STDC__", T_STDC),
524 X("__VERSION__", VERS),
525 X("__USER_LABEL_PREFIX__", ULP),
526 C("__REGISTER_PREFIX__", REGISTER_PREFIX),
527 C("__HAVE_BUILTIN_SETJMP__", "1"),
528 #ifndef NO_BUILTIN_SIZE_TYPE
529 C("__SIZE_TYPE__", SIZE_TYPE),
531 #ifndef NO_BUILTIN_PTRDIFF_TYPE
532 C("__PTRDIFF_TYPE__", PTRDIFF_TYPE),
534 #ifndef NO_BUILTIN_WCHAR_TYPE
535 C("__WCHAR_TYPE__", WCHAR_TYPE),
541 #define builtin_array_end \
542 builtin_array + sizeof(builtin_array)/sizeof(struct builtin)
544 /* Subroutine of cpp_start_read; reads the builtins table above and
545 enters the macros into the hash table. */
547 initialize_builtins (pfile)
550 const struct builtin *b;
551 for(b = builtin_array; b < builtin_array_end; b++)
553 if (b->type == T_MACRO)
560 /* Allocate enough space for 'name="value"\0'. */
561 str = xmalloc (b->len + strlen (version_string) + 4);
562 sprintf (str, "%s=\"%s\"", b->name, version_string);
567 val = user_label_prefix;
571 /* Allocate enough space for "name=value\0". */
572 str = xmalloc (b->len + strlen (val) + 2);
573 sprintf(str, "%s=%s", b->name, val);
575 cpp_define (pfile, str);
579 cpp_hashnode *hp = cpp_lookup (pfile, b->name, b->len);
586 #undef builtin_array_end
588 /* Another subroutine of cpp_start_read. This one sets up to do
589 dependency-file output. */
591 initialize_dependency_output (pfile)
594 char *spec, *s, *output_file;
596 /* Either of two environment variables can specify output of deps.
597 Its value is either "OUTPUT_FILE" or "OUTPUT_FILE DEPS_TARGET",
598 where OUTPUT_FILE is the file to write deps info to
599 and DEPS_TARGET is the target to mention in the deps. */
601 if (CPP_OPTION (pfile, print_deps) == 0)
603 spec = getenv ("DEPENDENCIES_OUTPUT");
605 CPP_OPTION (pfile, print_deps) = 1;
608 spec = getenv ("SUNPRO_DEPENDENCIES");
610 CPP_OPTION (pfile, print_deps) = 2;
615 /* Find the space before the DEPS_TARGET, if there is one. */
616 s = strchr (spec, ' ');
619 CPP_OPTION (pfile, deps_target) = s + 1;
620 output_file = (char *) xmalloc (s - spec + 1);
621 memcpy (output_file, spec, s - spec);
622 output_file[s - spec] = 0;
626 CPP_OPTION (pfile, deps_target) = 0;
630 CPP_OPTION (pfile, deps_file) = output_file;
631 CPP_OPTION (pfile, print_deps_append) = 1;
634 pfile->deps = deps_init ();
636 /* Print the expected object file name as the target of this Make-rule. */
637 if (CPP_OPTION (pfile, deps_target))
638 deps_add_target (pfile->deps, CPP_OPTION (pfile, deps_target));
639 else if (*CPP_OPTION (pfile, in_fname) == 0)
640 deps_add_target (pfile->deps, "-");
642 deps_calc_target (pfile->deps, CPP_OPTION (pfile, in_fname));
644 if (CPP_OPTION (pfile, in_fname))
645 deps_add_dep (pfile->deps, CPP_OPTION (pfile, in_fname));
648 /* And another subroutine. This one sets up the standard include path. */
650 initialize_standard_includes (pfile)
654 const struct default_include *p;
655 const char *specd_prefix = CPP_OPTION (pfile, include_prefix);
657 /* Several environment variables may add to the include search path.
658 CPATH specifies an additional list of directories to be searched
659 as if specified with -I, while C_INCLUDE_PATH, CPLUS_INCLUDE_PATH,
660 etc. specify an additional list of directories to be searched as
661 if specified with -isystem, for the language indicated. */
663 GET_ENV_PATH_LIST (path, "CPATH");
664 if (path != 0 && *path != 0)
665 path_include (pfile, CPP_OPTION (pfile, pending), path, BRACKET);
667 switch ((CPP_OPTION (pfile, objc) << 1) + CPP_OPTION (pfile, cplusplus))
670 GET_ENV_PATH_LIST (path, "C_INCLUDE_PATH");
673 GET_ENV_PATH_LIST (path, "CPLUS_INCLUDE_PATH");
676 GET_ENV_PATH_LIST (path, "OBJC_INCLUDE_PATH");
679 GET_ENV_PATH_LIST (path, "OBJCPLUS_INCLUDE_PATH");
682 if (path != 0 && *path != 0)
683 path_include (pfile, CPP_OPTION (pfile, pending), path, SYSTEM);
685 /* Search "translated" versions of GNU directories.
686 These have /usr/local/lib/gcc... replaced by specd_prefix. */
687 if (specd_prefix != 0 && cpp_GCC_INCLUDE_DIR_len)
689 /* Remove the `include' from /usr/local/lib/gcc.../include.
690 GCC_INCLUDE_DIR will always end in /include. */
691 int default_len = cpp_GCC_INCLUDE_DIR_len;
692 char *default_prefix = (char *) alloca (default_len + 1);
693 int specd_len = strlen (specd_prefix);
695 memcpy (default_prefix, cpp_GCC_INCLUDE_DIR, default_len);
696 default_prefix[default_len] = '\0';
698 for (p = cpp_include_defaults; p->fname; p++)
700 /* Some standard dirs are only for C++. */
702 || (CPP_OPTION (pfile, cplusplus)
703 && !CPP_OPTION (pfile, no_standard_cplusplus_includes)))
705 /* Does this dir start with the prefix? */
706 if (!strncmp (p->fname, default_prefix, default_len))
708 /* Yes; change prefix and add to search list. */
709 int flen = strlen (p->fname);
710 int this_len = specd_len + flen - default_len;
711 char *str = (char *) xmalloc (this_len + 1);
712 memcpy (str, specd_prefix, specd_len);
713 memcpy (str + specd_len,
714 p->fname + default_len,
715 flen - default_len + 1);
717 append_include_chain (pfile, CPP_OPTION (pfile, pending),
718 str, SYSTEM, p->cxx_aware);
724 /* Search ordinary names for GNU include directories. */
725 for (p = cpp_include_defaults; p->fname; p++)
727 /* Some standard dirs are only for C++. */
729 || (CPP_OPTION (pfile, cplusplus)
730 && !CPP_OPTION (pfile, no_standard_cplusplus_includes)))
732 /* XXX Potential memory leak! */
733 char *str = xstrdup (update_path (p->fname, p->component));
734 append_include_chain (pfile, CPP_OPTION (pfile, pending),
735 str, SYSTEM, p->cxx_aware);
740 /* This is called after options have been processed.
741 * Check options for consistency, and setup for processing input
742 * from the file named FNAME. (Use standard input if FNAME==NULL.)
743 * Return 1 on success, 0 on failure.
747 cpp_start_read (pfile, print, fname)
752 struct pending_option *p, *q;
754 /* -MG doesn't select the form of output and must be specified with one of
755 -M or -MM. -MG doesn't make sense with -MD or -MMD since they don't
756 inhibit compilation. */
757 if (CPP_OPTION (pfile, print_deps_missing_files)
758 && (CPP_OPTION (pfile, print_deps) == 0
759 || !CPP_OPTION (pfile, no_output)))
761 cpp_fatal (pfile, "-MG must be specified with one of -M or -MM");
765 /* -Wtraditional is not useful in C++ mode. */
766 if (CPP_OPTION (pfile, cplusplus))
767 CPP_OPTION (pfile, warn_traditional) = 0;
769 /* Do not warn about illegal token pasting if -lang-asm. */
770 if (CPP_OPTION (pfile, lang_asm))
771 CPP_OPTION (pfile, warn_paste) = 0;
773 /* Set this if it hasn't been set already. */
774 if (user_label_prefix == NULL)
775 user_label_prefix = USER_LABEL_PREFIX;
777 /* Figure out if we need to save function macro parameter spellings.
778 We don't use CPP_PEDANTIC() here because that depends on whether
779 or not the current file is a system header, and there is no
781 pfile->save_parameter_spellings =
782 CPP_OPTION (pfile, pedantic)
783 || CPP_OPTION (pfile, debug_output)
784 || CPP_OPTION (pfile, dump_macros) == dump_definitions
785 || CPP_OPTION (pfile, dump_macros) == dump_only;
787 /* Set up the IStable. This doesn't do anything if we were compiled
788 with a compiler that supports C99 designated initializers. */
791 /* Set up the tables used by read_and_prescan. */
792 _cpp_init_input_buffer (pfile);
794 /* Set up the include search path now. */
795 if (! CPP_OPTION (pfile, no_standard_includes))
796 initialize_standard_includes (pfile);
798 merge_include_chains (pfile);
800 /* With -v, print the list of dirs to search. */
801 if (CPP_OPTION (pfile, verbose))
803 struct file_name_list *l;
804 fprintf (stderr, _("#include \"...\" search starts here:\n"));
805 for (l = CPP_OPTION (pfile, quote_include); l; l = l->next)
807 if (l == CPP_OPTION (pfile, bracket_include))
808 fprintf (stderr, _("#include <...> search starts here:\n"));
809 fprintf (stderr, " %s\n", l->name);
811 fprintf (stderr, _("End of search list.\n"));
814 /* Open the main input file. This must be done early, so we have a
815 buffer to stand on. */
816 if (CPP_OPTION (pfile, in_fname) == NULL
817 || *CPP_OPTION (pfile, in_fname) == 0)
819 CPP_OPTION (pfile, in_fname) = fname;
820 if (CPP_OPTION (pfile, in_fname) == NULL)
821 CPP_OPTION (pfile, in_fname) = "";
823 if (CPP_OPTION (pfile, out_fname) == NULL)
824 CPP_OPTION (pfile, out_fname) = "";
826 if (!cpp_read_file (pfile, fname))
829 initialize_dependency_output (pfile);
831 /* -D and friends may produce output, which should be identified
834 CPP_BUFFER (pfile)->lineno = 0;
837 print->last_fname = CPP_BUFFER (pfile)->nominal_fname;
838 print->last_id = pfile->include_depth;
839 print->written = CPP_WRITTEN (pfile);
843 /* Install __LINE__, etc. */
844 initialize_builtins (pfile);
846 /* Do -U's, -D's and -A's in the order they were seen. */
847 p = CPP_OPTION (pfile, pending)->directive_head;
850 (*p->handler) (pfile, p->arg);
855 pfile->done_initializing = 1;
857 /* Now flush any output recorded during initialization, and advance
858 to line 1 of the main input file. */
859 CPP_BUFFER (pfile)->lineno = 1;
861 if (print && ! CPP_OPTION (pfile, no_output))
862 cpp_output_tokens (pfile, print, 1);
864 /* The -imacros files can be scanned now, but the -include files
865 have to be pushed onto the include stack and processed later,
866 in the main loop calling cpp_get_token. */
868 p = CPP_OPTION (pfile, pending)->imacros_head;
871 if (cpp_read_file (pfile, p->arg))
872 cpp_scan_buffer_nooutput (pfile);
878 p = CPP_OPTION (pfile, pending)->include_head;
881 if (cpp_read_file (pfile, p->arg)
882 && print && ! CPP_OPTION (pfile, no_output))
883 cpp_output_tokens (pfile, print, 1); /* record entry to file */
889 free (CPP_OPTION (pfile, pending));
890 CPP_OPTION (pfile, pending) = NULL;
896 /* Dump out the hash table. */
898 dump_macros_helper (pfile, hp)
902 if (hp->type == T_MACRO)
903 _cpp_dump_definition (pfile, hp);
907 /* This is called at the end of preprocessing. It pops the
908 last buffer and writes dependency output. It should also
909 clear macro definitions, such that you could call cpp_start_read
910 with a new filename to restart processing. */
912 cpp_finish (pfile, print)
916 if (CPP_BUFFER (pfile))
918 cpp_ice (pfile, "buffers still stacked in cpp_finish");
919 while (CPP_BUFFER (pfile))
920 cpp_pop_buffer (pfile);
923 /* Don't write the deps file if preprocessing has failed. */
924 if (CPP_OPTION (pfile, print_deps) && pfile->errors == 0)
926 /* Stream on which to print the dependency information. */
927 FILE *deps_stream = 0;
928 const char *deps_mode
929 = CPP_OPTION (pfile, print_deps_append) ? "a" : "w";
930 if (CPP_OPTION (pfile, deps_file) == 0)
931 deps_stream = stdout;
934 deps_stream = fopen (CPP_OPTION (pfile, deps_file), deps_mode);
935 if (deps_stream == 0)
936 cpp_notice_from_errno (pfile, CPP_OPTION (pfile, deps_file));
940 deps_write (pfile->deps, deps_stream, 72);
941 if (CPP_OPTION (pfile, deps_file))
943 if (ferror (deps_stream) || fclose (deps_stream) != 0)
944 cpp_fatal (pfile, "I/O error on output");
949 if (CPP_OPTION (pfile, dump_macros) == dump_only)
950 cpp_forall_identifiers (pfile, dump_macros_helper);
952 /* Flush any pending output. */
955 cpp_output_tokens (pfile, print, print->lineno);
956 if (ferror (print->outf) || fclose (print->outf))
957 cpp_notice_from_errno (pfile, CPP_OPTION (pfile, out_fname));
960 /* Report on headers that could use multiple include guards. */
961 if (CPP_OPTION (pfile, print_include_names))
962 _cpp_report_missing_guards (pfile);
966 new_pending_directive (pend, text, handler)
967 struct cpp_pending *pend;
969 cl_directive_handler handler;
971 struct pending_option *o = (struct pending_option *)
972 xmalloc (sizeof (struct pending_option));
976 o->handler = handler;
977 APPEND (pend, directive, o);
980 /* Irix6 "cc -n32" and OSF4 cc have problems with char foo[] = ("string");
981 I.e. a const string initializer with parens around it. That is
982 what N_("string") resolves to, so we make no_* be macros instead. */
983 #define no_arg N_("Argument missing after %s")
984 #define no_ass N_("Assertion missing after %s")
985 #define no_dir N_("Directory name missing after %s")
986 #define no_fil N_("File name missing after %s")
987 #define no_mac N_("Macro name missing after %s")
988 #define no_pth N_("Path name missing after %s")
989 #define no_num N_("Number missing after %s")
991 /* This is the list of all command line options, with the leading
992 "-" removed. It must be sorted in ASCII collating order. */
993 #define COMMAND_LINE_OPTIONS \
994 DEF_OPT("", 0, OPT_stdin_stdout) \
995 DEF_OPT("$", 0, OPT_dollar) \
996 DEF_OPT("+", 0, OPT_plus) \
997 DEF_OPT("-help", 0, OPT__help) \
998 DEF_OPT("-version", 0, OPT__version) \
999 DEF_OPT("A", no_ass, OPT_A) \
1000 DEF_OPT("C", 0, OPT_C) \
1001 DEF_OPT("D", no_mac, OPT_D) \
1002 DEF_OPT("H", 0, OPT_H) \
1003 DEF_OPT("I", no_dir, OPT_I) \
1004 DEF_OPT("M", 0, OPT_M) \
1005 DEF_OPT("MD", no_fil, OPT_MD) \
1006 DEF_OPT("MG", 0, OPT_MG) \
1007 DEF_OPT("MM", 0, OPT_MM) \
1008 DEF_OPT("MMD", no_fil, OPT_MMD) \
1009 DEF_OPT("P", 0, OPT_P) \
1010 DEF_OPT("U", no_mac, OPT_U) \
1011 DEF_OPT("W", no_arg, OPT_W) /* arg optional */ \
1012 DEF_OPT("d", no_arg, OPT_d) \
1013 DEF_OPT("fleading-underscore", 0, OPT_fleading_underscore) \
1014 DEF_OPT("fno-leading-underscore", 0, OPT_fno_leading_underscore) \
1015 DEF_OPT("fno-preprocessed", 0, OPT_fno_preprocessed) \
1016 DEF_OPT("fno-show-column", 0, OPT_fno_show_column) \
1017 DEF_OPT("fpreprocessed", 0, OPT_fpreprocessed) \
1018 DEF_OPT("fshow-column", 0, OPT_fshow_column) \
1019 DEF_OPT("ftabstop=", no_num, OPT_ftabstop) \
1020 DEF_OPT("g", no_arg, OPT_g) /* arg optional */ \
1021 DEF_OPT("h", 0, OPT_h) \
1022 DEF_OPT("idirafter", no_dir, OPT_idirafter) \
1023 DEF_OPT("imacros", no_fil, OPT_imacros) \
1024 DEF_OPT("include", no_fil, OPT_include) \
1025 DEF_OPT("iprefix", no_pth, OPT_iprefix) \
1026 DEF_OPT("isystem", no_dir, OPT_isystem) \
1027 DEF_OPT("iwithprefix", no_dir, OPT_iwithprefix) \
1028 DEF_OPT("iwithprefixbefore", no_dir, OPT_iwithprefixbefore) \
1029 DEF_OPT("lang-asm", 0, OPT_lang_asm) \
1030 DEF_OPT("lang-c", 0, OPT_lang_c) \
1031 DEF_OPT("lang-c++", 0, OPT_lang_cplusplus) \
1032 DEF_OPT("lang-c89", 0, OPT_lang_c89) \
1033 DEF_OPT("lang-objc", 0, OPT_lang_objc) \
1034 DEF_OPT("lang-objc++", 0, OPT_lang_objcplusplus) \
1035 DEF_OPT("nostdinc", 0, OPT_nostdinc) \
1036 DEF_OPT("nostdinc++", 0, OPT_nostdincplusplus) \
1037 DEF_OPT("o", no_fil, OPT_o) \
1038 DEF_OPT("pedantic", 0, OPT_pedantic) \
1039 DEF_OPT("pedantic-errors", 0, OPT_pedantic_errors) \
1040 DEF_OPT("remap", 0, OPT_remap) \
1041 DEF_OPT("std=c89", 0, OPT_std_c89) \
1042 DEF_OPT("std=c99", 0, OPT_std_c99) \
1043 DEF_OPT("std=c9x", 0, OPT_std_c9x) \
1044 DEF_OPT("std=gnu89", 0, OPT_std_gnu89) \
1045 DEF_OPT("std=gnu99", 0, OPT_std_gnu99) \
1046 DEF_OPT("std=gnu9x", 0, OPT_std_gnu9x) \
1047 DEF_OPT("std=iso9899:1990", 0, OPT_std_iso9899_1990) \
1048 DEF_OPT("std=iso9899:199409", 0, OPT_std_iso9899_199409) \
1049 DEF_OPT("std=iso9899:1999", 0, OPT_std_iso9899_1999) \
1050 DEF_OPT("std=iso9899:199x", 0, OPT_std_iso9899_199x) \
1051 DEF_OPT("trigraphs", 0, OPT_trigraphs) \
1052 DEF_OPT("v", 0, OPT_v) \
1053 DEF_OPT("w", 0, OPT_w)
1055 #define DEF_OPT(text, msg, code) code,
1058 COMMAND_LINE_OPTIONS
1065 const char *opt_text;
1068 enum opt_code opt_code;
1071 #define DEF_OPT(text, msg, code) { text, msg, sizeof(text) - 1, code },
1073 static struct cl_option cl_options[] =
1075 static const struct cl_option cl_options[] =
1078 COMMAND_LINE_OPTIONS
1081 #undef COMMAND_LINE_OPTIONS
1087 static int opts_sorted = 0;
1092 /* For non-ASCII hosts, the array needs to be sorted at runtime */
1093 qsort (cl_options, N_OPTS, sizeof (struct cl_option), opt_comp);
1099 /* Perform a binary search to find which, if any, option the given
1100 command-line matches. Returns its index in the option array,
1101 negative on failure. Complications arise since some options can be
1102 suffixed with an argument, and multiple complete matches can occur,
1103 e.g. -iwithprefix and -iwithprefixbefore. Moreover, we want to
1104 accept options beginning with -g and -W that we do not recognise,
1105 but not to swallow any subsequent command line argument; these are
1106 handled as special cases in cpp_handle_option */
1108 parse_option (input)
1111 unsigned int md, mn, mx;
1122 opt_len = cl_options[md].opt_len;
1123 comp = strncmp (input, cl_options[md].opt_text, opt_len);
1131 if (input[opt_len] == '\0')
1133 /* We were passed more text. If the option takes an argument,
1134 we may match a later option or we may have been passed the
1135 argument. The longest possible option match succeeds.
1136 If the option takes no arguments we have not matched and
1137 continue the search (e.g. input="stdc++" match was "stdc") */
1139 if (cl_options[md].msg)
1141 /* Scan forwards. If we get an exact match, return it.
1142 Otherwise, return the longest option-accepting match.
1143 This loops no more than twice with current options */
1145 for (; mn < N_OPTS; mn++)
1147 opt_len = cl_options[mn].opt_len;
1148 if (strncmp (input, cl_options[mn].opt_text, opt_len))
1150 if (input[opt_len] == '\0')
1152 if (cl_options[mn].msg)
1163 /* Handle one command-line option in (argc, argv).
1164 Can be called multiple times, to handle multiple sets of options.
1165 Returns number of strings consumed. */
1168 cpp_handle_option (pfile, argc, argv)
1174 struct cpp_pending *pend = CPP_OPTION (pfile, pending);
1176 if (argv[i][0] != '-')
1178 if (CPP_OPTION (pfile, out_fname) != NULL)
1179 cpp_fatal (pfile, "Too many arguments. Type %s --help for usage info",
1181 else if (CPP_OPTION (pfile, in_fname) != NULL)
1182 CPP_OPTION (pfile, out_fname) = argv[i];
1184 CPP_OPTION (pfile, in_fname) = argv[i];
1188 enum opt_code opt_code;
1190 const char *arg = 0;
1193 opt_index = parse_option (&argv[i][1]);
1197 opt_code = cl_options[opt_index].opt_code;
1198 if (cl_options[opt_index].msg)
1200 arg = &argv[i][cl_options[opt_index].opt_len + 1];
1202 /* Yuk. Special case for -g and -W as they must not swallow
1203 up any following argument. If this becomes common, add
1204 another field to the cl_options table */
1205 if (arg[0] == '\0' && !(opt_code == OPT_g || opt_code == OPT_W))
1210 cpp_fatal (pfile, cl_options[opt_index].msg, argv[i - 1]);
1218 case N_OPTS: /* shut GCC up */
1220 case OPT_fleading_underscore:
1221 user_label_prefix = "_";
1223 case OPT_fno_leading_underscore:
1224 user_label_prefix = "";
1226 case OPT_fpreprocessed:
1227 CPP_OPTION (pfile, preprocessed) = 1;
1229 case OPT_fno_preprocessed:
1230 CPP_OPTION (pfile, preprocessed) = 0;
1232 case OPT_fshow_column:
1233 CPP_OPTION (pfile, show_column) = 1;
1235 case OPT_fno_show_column:
1236 CPP_OPTION (pfile, show_column) = 0;
1239 /* Silently ignore empty string, non-longs and silly values. */
1243 long tabstop = strtol (arg, &endptr, 10);
1244 if (*endptr == '\0' && tabstop >= 1 && tabstop <= 100)
1245 CPP_OPTION (pfile, tabstop) = tabstop;
1249 CPP_OPTION (pfile, inhibit_warnings) = 1;
1251 case OPT_g: /* Silently ignore anything but -g3 */
1252 if (!strcmp(&argv[i][2], "3"))
1253 CPP_OPTION (pfile, debug_output) = 1;
1261 fprintf (stderr, _("GNU CPP version %s (cpplib)\n"), version_string);
1265 CPP_OPTION (pfile, discard_comments) = 0;
1268 CPP_OPTION (pfile, no_line_commands) = 1;
1270 case OPT_dollar: /* Don't include $ in identifiers. */
1271 CPP_OPTION (pfile, dollars_in_ident) = 0;
1274 CPP_OPTION (pfile, print_include_names) = 1;
1277 new_pending_directive (pend, arg, cpp_define);
1279 case OPT_pedantic_errors:
1280 CPP_OPTION (pfile, pedantic_errors) = 1;
1283 CPP_OPTION (pfile, pedantic) = 1;
1286 CPP_OPTION (pfile, trigraphs) = 1;
1289 CPP_OPTION (pfile, cplusplus) = 1;
1290 CPP_OPTION (pfile, cplusplus_comments) = 1;
1293 CPP_OPTION (pfile, remap) = 1;
1296 CPP_OPTION (pfile, include_prefix) = arg;
1297 CPP_OPTION (pfile, include_prefix_len) = strlen (arg);
1300 CPP_OPTION (pfile, cplusplus) = 0;
1301 CPP_OPTION (pfile, cplusplus_comments) = 1;
1302 CPP_OPTION (pfile, c89) = 0;
1303 CPP_OPTION (pfile, c99) = 1;
1304 CPP_OPTION (pfile, digraphs) = 1;
1305 CPP_OPTION (pfile, objc) = 0;
1307 case OPT_lang_cplusplus:
1308 CPP_OPTION (pfile, cplusplus) = 1;
1309 CPP_OPTION (pfile, cplusplus_comments) = 1;
1310 CPP_OPTION (pfile, c89) = 0;
1311 CPP_OPTION (pfile, c99) = 0;
1312 CPP_OPTION (pfile, objc) = 0;
1313 CPP_OPTION (pfile, digraphs) = 1;
1314 new_pending_directive (pend, "__cplusplus", cpp_define);
1316 case OPT_lang_objcplusplus:
1317 CPP_OPTION (pfile, cplusplus) = 1;
1318 new_pending_directive (pend, "__cplusplus", cpp_define);
1321 CPP_OPTION (pfile, cplusplus_comments) = 1;
1322 CPP_OPTION (pfile, c89) = 0;
1323 CPP_OPTION (pfile, c99) = 0;
1324 CPP_OPTION (pfile, objc) = 1;
1325 new_pending_directive (pend, "__OBJC__", cpp_define);
1328 CPP_OPTION (pfile, lang_asm) = 1;
1329 CPP_OPTION (pfile, dollars_in_ident) = 0;
1330 new_pending_directive (pend, "__ASSEMBLER__", cpp_define);
1333 /* -nostdinc causes no default include directories.
1334 You must specify all include-file directories with -I. */
1335 CPP_OPTION (pfile, no_standard_includes) = 1;
1337 case OPT_nostdincplusplus:
1338 /* -nostdinc++ causes no default C++-specific include directories. */
1339 CPP_OPTION (pfile, no_standard_cplusplus_includes) = 1;
1342 CPP_OPTION (pfile, cplusplus) = 0;
1343 CPP_OPTION (pfile, cplusplus_comments) = 1;
1344 CPP_OPTION (pfile, c89) = 1;
1345 CPP_OPTION (pfile, c99) = 0;
1346 CPP_OPTION (pfile, objc) = 0;
1347 CPP_OPTION (pfile, digraphs) = 1;
1351 CPP_OPTION (pfile, cplusplus) = 0;
1352 CPP_OPTION (pfile, cplusplus_comments) = 1;
1353 CPP_OPTION (pfile, c89) = 0;
1354 CPP_OPTION (pfile, c99) = 1;
1355 CPP_OPTION (pfile, digraphs) = 1;
1356 CPP_OPTION (pfile, objc) = 0;
1357 new_pending_directive (CPP_OPTION (pfile, pending),
1358 "__STDC_VERSION__=199901L", cpp_define);
1360 case OPT_std_iso9899_199409:
1361 new_pending_directive (CPP_OPTION (pfile, pending),
1362 "__STDC_VERSION__=199409L", cpp_define);
1364 case OPT_std_iso9899_1990:
1367 CPP_OPTION (pfile, cplusplus) = 0;
1368 CPP_OPTION (pfile, cplusplus_comments) = 0;
1369 CPP_OPTION (pfile, c89) = 1;
1370 CPP_OPTION (pfile, c99) = 0;
1371 CPP_OPTION (pfile, objc) = 0;
1372 CPP_OPTION (pfile, digraphs) = opt_code == OPT_std_iso9899_199409;
1373 CPP_OPTION (pfile, trigraphs) = 1;
1374 new_pending_directive (pend, "__STRICT_ANSI__", cpp_define);
1376 case OPT_std_iso9899_199x:
1377 case OPT_std_iso9899_1999:
1380 CPP_OPTION (pfile, cplusplus) = 0;
1381 CPP_OPTION (pfile, cplusplus_comments) = 1;
1382 CPP_OPTION (pfile, c89) = 0;
1383 CPP_OPTION (pfile, c99) = 1;
1384 CPP_OPTION (pfile, objc) = 0;
1385 CPP_OPTION (pfile, digraphs) = 1;
1386 CPP_OPTION (pfile, trigraphs) = 1;
1387 new_pending_directive (CPP_OPTION (pfile, pending),
1388 "__STRICT_ANSI__", cpp_define);
1389 new_pending_directive (CPP_OPTION (pfile, pending),
1390 "__STDC_VERSION__=199901L", cpp_define);
1393 if (CPP_OPTION (pfile, out_fname) != NULL)
1395 cpp_fatal (pfile, "Output filename specified twice");
1398 CPP_OPTION (pfile, out_fname) = arg;
1399 if (!strcmp (CPP_OPTION (pfile, out_fname), "-"))
1400 CPP_OPTION (pfile, out_fname) = "";
1403 fprintf (stderr, _("GNU CPP version %s (cpplib)\n"), version_string);
1404 #ifdef TARGET_VERSION
1407 fputc ('\n', stderr);
1408 CPP_OPTION (pfile, verbose) = 1;
1410 case OPT_stdin_stdout:
1411 /* JF handle '-' as file name meaning stdin or stdout */
1412 if (CPP_OPTION (pfile, in_fname) == NULL)
1413 CPP_OPTION (pfile, in_fname) = "";
1414 else if (CPP_OPTION (pfile, out_fname) == NULL)
1415 CPP_OPTION (pfile, out_fname) = "";
1418 /* Args to -d specify what parts of macros to dump.
1419 Silently ignore unrecognised options; they may
1420 be aimed at the compiler proper. */
1424 while ((c = *arg++) != '\0')
1428 CPP_OPTION (pfile, dump_macros) = dump_only;
1429 CPP_OPTION (pfile, no_output) = 1;
1432 CPP_OPTION (pfile, dump_macros) = dump_names;
1435 CPP_OPTION (pfile, dump_macros) = dump_definitions;
1438 CPP_OPTION (pfile, dump_includes) = 1;
1443 /* The style of the choices here is a bit mixed.
1444 The chosen scheme is a hybrid of keeping all options in one string
1445 and specifying each option in a separate argument:
1446 -M|-MM|-MD file|-MMD file [-MG]. An alternative is:
1447 -M|-MM|-MD file|-MMD file|-MG|-MMG; or more concisely:
1448 -M[M][G][D file]. This is awkward to handle in specs, and is not
1450 /* ??? -MG must be specified in addition to one of -M or -MM.
1451 This can be relaxed in the future without breaking anything.
1452 The converse isn't true. */
1454 /* -MG isn't valid with -MD or -MMD. This is checked for later. */
1456 CPP_OPTION (pfile, print_deps_missing_files) = 1;
1462 if (opt_code == OPT_M || opt_code == OPT_MD)
1463 CPP_OPTION (pfile, print_deps) = 2;
1465 CPP_OPTION (pfile, print_deps) = 1;
1467 /* For -MD and -MMD options, write deps on file named by next arg */
1468 /* For -M and -MM, write deps on standard output
1469 and suppress the usual output. */
1470 if (opt_code == OPT_MD || opt_code == OPT_MMD)
1471 CPP_OPTION (pfile, deps_file) = arg;
1473 CPP_OPTION (pfile, no_output) = 1;
1478 /* -A with an argument beginning with '-' acts as
1479 #unassert on whatever immediately follows the '-'.
1480 If "-" is the whole argument, we eliminate all
1481 predefined macros and assertions, including those
1482 that were specified earlier on the command line.
1483 That way we can get rid of any that were passed
1484 automatically in from GCC. */
1488 struct pending_option *o1, *o2;
1490 o1 = CPP_OPTION (pfile, pending)->directive_head;
1497 CPP_OPTION (pfile, pending)->directive_head = NULL;
1498 CPP_OPTION (pfile, pending)->directive_tail = NULL;
1501 new_pending_directive (CPP_OPTION (pfile, pending),
1502 arg + 1, cpp_unassert);
1505 new_pending_directive (CPP_OPTION (pfile, pending),
1509 new_pending_directive (CPP_OPTION (pfile, pending), arg, cpp_undef);
1511 case OPT_I: /* Add directory to path for includes. */
1512 if (!strcmp (arg, "-"))
1515 Use the preceding -I directories for #include "..."
1516 but not #include <...>.
1517 Don't search the directory of the present file
1518 for #include "...". (Note that -I. -I- is not the same as
1519 the default setup; -I. uses the compiler's working dir.) */
1520 if (! CPP_OPTION (pfile, ignore_srcdir))
1522 struct cpp_pending *pend = CPP_OPTION (pfile, pending);
1523 pend->quote_head = pend->brack_head;
1524 pend->quote_tail = pend->brack_tail;
1525 pend->brack_head = 0;
1526 pend->brack_tail = 0;
1527 CPP_OPTION (pfile, ignore_srcdir) = 1;
1531 cpp_fatal (pfile, "-I- specified twice");
1536 append_include_chain (pfile, CPP_OPTION (pfile, pending),
1537 xstrdup (arg), BRACKET, 0);
1540 /* Add directory to beginning of system include path, as a system
1541 include directory. */
1542 append_include_chain (pfile, CPP_OPTION (pfile, pending),
1543 xstrdup (arg), SYSTEM, 0);
1547 struct pending_option *o = (struct pending_option *)
1548 xmalloc (sizeof (struct pending_option));
1551 /* This list has to be built in reverse order so that
1552 when cpp_start_read pushes all the -include files onto
1553 the buffer stack, they will be scanned in forward order. */
1554 o->next = CPP_OPTION (pfile, pending)->include_head;
1555 CPP_OPTION (pfile, pending)->include_head = o;
1560 struct pending_option *o = (struct pending_option *)
1561 xmalloc (sizeof (struct pending_option));
1565 APPEND (CPP_OPTION (pfile, pending), imacros, o);
1568 case OPT_iwithprefix:
1569 /* Add directory to end of path for includes,
1570 with the default prefix at the front of its name. */
1572 case OPT_iwithprefixbefore:
1573 /* Add directory to main path for includes,
1574 with the default prefix at the front of its name. */
1581 if (CPP_OPTION (pfile, include_prefix) != 0)
1583 size_t ipl = CPP_OPTION (pfile, include_prefix_len);
1584 fname = xmalloc (ipl + len + 1);
1585 memcpy (fname, CPP_OPTION (pfile, include_prefix), ipl);
1586 memcpy (fname + ipl, arg, len + 1);
1588 else if (cpp_GCC_INCLUDE_DIR_len)
1590 fname = xmalloc (cpp_GCC_INCLUDE_DIR_len + len + 1);
1591 memcpy (fname, cpp_GCC_INCLUDE_DIR, cpp_GCC_INCLUDE_DIR_len);
1592 memcpy (fname + cpp_GCC_INCLUDE_DIR_len, arg, len + 1);
1595 fname = xstrdup (arg);
1597 append_include_chain (pfile, CPP_OPTION (pfile, pending), fname,
1598 opt_code == OPT_iwithprefix ? SYSTEM: BRACKET, 0);
1602 /* Add directory to end of path for includes. */
1603 append_include_chain (pfile, CPP_OPTION (pfile, pending),
1604 xstrdup (arg), AFTER, 0);
1607 /* Silently ignore unrecognised options */
1608 if (!strcmp (argv[i], "-Wall"))
1610 CPP_OPTION (pfile, warn_trigraphs) = 1;
1611 CPP_OPTION (pfile, warn_comments) = 1;
1613 else if (!strcmp (argv[i], "-Wtraditional"))
1614 CPP_OPTION (pfile, warn_traditional) = 1;
1615 else if (!strcmp (argv[i], "-Wtrigraphs"))
1616 CPP_OPTION (pfile, warn_trigraphs) = 1;
1617 else if (!strcmp (argv[i], "-Wcomment"))
1618 CPP_OPTION (pfile, warn_comments) = 1;
1619 else if (!strcmp (argv[i], "-Wcomments"))
1620 CPP_OPTION (pfile, warn_comments) = 1;
1621 else if (!strcmp (argv[i], "-Wundef"))
1622 CPP_OPTION (pfile, warn_undef) = 1;
1623 else if (!strcmp (argv[i], "-Wimport"))
1624 CPP_OPTION (pfile, warn_import) = 1;
1625 else if (!strcmp (argv[i], "-Wpaste"))
1626 CPP_OPTION (pfile, warn_paste) = 1;
1627 else if (!strcmp (argv[i], "-Werror"))
1628 CPP_OPTION (pfile, warnings_are_errors) = 1;
1629 else if (!strcmp (argv[i], "-Wno-traditional"))
1630 CPP_OPTION (pfile, warn_traditional) = 0;
1631 else if (!strcmp (argv[i], "-Wno-trigraphs"))
1632 CPP_OPTION (pfile, warn_trigraphs) = 0;
1633 else if (!strcmp (argv[i], "-Wno-comment"))
1634 CPP_OPTION (pfile, warn_comments) = 0;
1635 else if (!strcmp (argv[i], "-Wno-comments"))
1636 CPP_OPTION (pfile, warn_comments) = 0;
1637 else if (!strcmp (argv[i], "-Wno-undef"))
1638 CPP_OPTION (pfile, warn_undef) = 0;
1639 else if (!strcmp (argv[i], "-Wno-import"))
1640 CPP_OPTION (pfile, warn_import) = 0;
1641 else if (!strcmp (argv[i], "-Wno-paste"))
1642 CPP_OPTION (pfile, warn_paste) = 0;
1643 else if (!strcmp (argv[i], "-Wno-error"))
1644 CPP_OPTION (pfile, warnings_are_errors) = 0;
1653 opt_comp (const void *p1, const void *p2)
1655 return strcmp (((struct cl_option *)p1)->opt_text,
1656 ((struct cl_option *)p2)->opt_text);
1660 /* Handle command-line options in (argc, argv).
1661 Can be called multiple times, to handle multiple sets of options.
1662 Returns if an unrecognized option is seen.
1663 Returns number of strings consumed. */
1665 cpp_handle_options (pfile, argc, argv)
1671 int strings_processed;
1673 for (i = 0; i < argc; i += strings_processed)
1675 strings_processed = cpp_handle_option (pfile, argc - i, argv + i);
1676 if (strings_processed == 0)
1685 fprintf (stderr, _("Usage: %s [switches] input output\n"), progname);
1686 /* To keep the lines from getting too long for some compilers, limit
1687 to about 500 characters (6 lines) per chunk. */
1690 -include <file> Include the contents of <file> before other files\n\
1691 -imacros <file> Accept definition of macros in <file>\n\
1692 -iprefix <path> Specify <path> as a prefix for next two options\n\
1693 -iwithprefix <dir> Add <dir> to the end of the system include path\n\
1694 -iwithprefixbefore <dir> Add <dir> to the end of the main include path\n\
1695 -isystem <dir> Add <dir> to the start of the system include path\n\
1698 -idirafter <dir> Add <dir> to the end of the system include path\n\
1699 -I <dir> Add <dir> to the end of the main include path\n\
1700 -I- Fine-grained include path control; see info docs\n\
1701 -nostdinc Do not search system include directories\n\
1702 (dirs specified with -isystem will still be used)\n\
1703 -nostdinc++ Do not search system include directories for C++\n\
1704 -o <file> Put output into <file>\n\
1707 -pedantic Issue all warnings demanded by strict ISO C\n\
1708 -pedantic-errors Issue -pedantic warnings as errors instead\n\
1709 -trigraphs Support ISO C trigraphs\n\
1710 -lang-c Assume that the input sources are in C\n\
1711 -lang-c89 Assume that the input sources are in C89\n\
1714 -lang-c++ Assume that the input sources are in C++\n\
1715 -lang-objc Assume that the input sources are in ObjectiveC\n\
1716 -lang-objc++ Assume that the input sources are in ObjectiveC++\n\
1717 -lang-asm Assume that the input sources are in assembler\n\
1720 -std=<std name> Specify the conformance standard; one of:\n\
1721 gnu89, gnu99, c89, c99, iso9899:1990,\n\
1722 iso9899:199409, iso9899:1999\n\
1723 -+ Allow parsing of C++ style features\n\
1724 -w Inhibit warning messages\n\
1725 -Wtrigraphs Warn if trigraphs are encountered\n\
1726 -Wno-trigraphs Do not warn about trigraphs\n\
1727 -Wcomment{s} Warn if one comment starts inside another\n\
1730 -Wno-comment{s} Do not warn about comments\n\
1731 -Wtraditional Warn about features not present in traditional C\n\
1732 -Wno-traditional Do not warn about traditional C\n\
1733 -Wundef Warn if an undefined macro is used by #if\n\
1734 -Wno-undef Do not warn about testing undefined macros\n\
1735 -Wimport Warn about the use of the #import directive\n\
1738 -Wno-import Do not warn about the use of #import\n\
1739 -Werror Treat all warnings as errors\n\
1740 -Wno-error Do not treat warnings as errors\n\
1741 -Wall Enable all preprocessor warnings\n\
1742 -M Generate make dependencies\n\
1743 -MM As -M, but ignore system header files\n\
1746 -MD As -M, but put output in a .d file\n\
1747 -MMD As -MD, but ignore system header files\n\
1748 -MG Treat missing header file as generated files\n\
1749 -g3 Include #define and #undef directives in the output\n\
1750 -D<macro> Define a <macro> with string '1' as its value\n\
1751 -D<macro>=<val> Define a <macro> with <val> as its value\n\
1754 -A<question> (<answer>) Assert the <answer> to <question>\n\
1755 -A-<question> (<answer>) Disable the <answer> to <question>\n\
1756 -U<macro> Undefine <macro> \n\
1757 -v Display the version number\n\
1758 -H Print the name of header files as they are used\n\
1759 -C Do not discard comments\n\
1762 -dM Display a list of macro definitions active at end\n\
1763 -dD Preserve macro definitions in output\n\
1764 -dN As -dD except that only the names are preserved\n\
1765 -dI Include #include directives in the output\n\
1766 -ftabstop=<number> Distance between tab stops for column reporting\n\
1767 -P Do not generate #line directives\n\
1768 -$ Do not allow '$' in identifiers\n\
1771 -remap Remap file names when including files.\n\
1772 --version Display version information\n\
1773 -h or --help Display this information\n\