1 /* Protoize program - Original version by Ron Guilmette (rfg@segfault.us.com).
2 Copyright (C) 1989, 92-97, 1998 Free Software Foundation, Inc.
4 This file is part of GNU CC.
6 GNU CC is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2, or (at your option)
11 GNU CC is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with GNU CC; see the file COPYING. If not, write to
18 the Free Software Foundation, 59 Temple Place - Suite 330,
19 Boston, MA 02111-1307, USA. */
21 /* Any reasonable C++ compiler should have all of the same features
22 as __STDC__ plus more, so make sure that __STDC__ is defined if
23 __cplusplus is defined. */
25 #if defined(__cplusplus) && !defined(__STDC__)
27 #endif /* defined(__cplusplus) && !defined(__STDC__) */
29 #if defined(__GNUC__) || defined (__GNUG__)
30 #define VOLATILE volatile
43 /* Users are not supposed to use _POSIX_SOURCE to say the
44 system is a POSIX system. That is not what _POSIX_SOURCE means! -- rms */
45 /* If the user asked for POSIX via _POSIX_SOURCE, turn on POSIX code. */
46 #if defined(_POSIX_SOURCE) && !defined(POSIX)
51 #ifdef POSIX /* We should be able to define _POSIX_SOURCE unconditionally,
52 but some systems respond in buggy ways to it,
53 including SunOS 4.1.1. Which we don't classify as POSIX. */
54 /* In case this is a POSIX system with an ANSI C compiler,
55 ask for definition of all POSIX facilities. */
67 #if ! defined (_WIN32) || defined (__CYGWIN32__)
68 #if defined(POSIX) || defined(CONCURRENT)
75 #include "gansidecl.h"
77 /* Some systems like Linux don't declare rindex if _POSIX_SOURCE is declared,
78 but it normally does declare it. This means that configure thinks we don't
79 need to declare it. Favor using strrchr if it is available. */
84 #define strrchr rindex
89 /* Include getopt.h for the sake of getopt_long.
90 We don't need the declaration of getopt, and it could conflict
91 with something from a system header file, so effectively nullify that. */
92 #define getopt getopt_loser
96 extern char *version_string;
98 /* Systems which are compatible only with POSIX 1003.1-1988 (but *not*
99 with POSIX 1003.1-1990), e.g. Ultrix 4.2, might not have
100 const qualifiers in the prototypes in the system include files.
101 Unfortunately, this can lead to GCC issuing lots of warnings for
102 calls to the following functions. To eliminate these warnings we
103 provide the following #defines. */
105 #define my_access(file,flag) access((char *)file, flag)
106 #define my_stat(file,pkt) stat((char *)file, pkt)
108 #define my_link(file1, file2) -1
110 #define my_link(file1, file2) link((char *)file1, (char *)file2)
112 #define my_unlink(file) unlink((char *)file)
113 #define my_open(file, mode, flag) open((char *)file, mode, flag)
114 #define my_chmod(file, mode) chmod((char *)file, mode)
116 extern char *getpwd ();
118 extern char *choose_temp_base PROTO ((void));
119 extern char * my_strerror PROTO ((int));
121 extern int pexecute PROTO ((const char *, char * const *, const char *,
122 const char *, char **, char **, int));
123 extern int pwait PROTO ((int, int *, int));
124 /* Flag arguments to pexecute. */
125 #define PEXECUTE_FIRST 1
126 #define PEXECUTE_LAST 2
127 #define PEXECUTE_SEARCH 4
129 /* Aliases for pointers to void.
130 These were made to facilitate compilation with old brain-dead DEC C
131 compilers which didn't properly grok `void*' types. */
134 typedef void * pointer_type;
135 typedef const void * const_pointer_type;
137 typedef char * pointer_type;
138 typedef char * const_pointer_type;
144 #include <sys/wait.h>
146 #else /* !defined(POSIX) */
149 #define WIFSIGNALED(S) (((S) & 0xff) != 0 && ((S) & 0xff) != 0x7f)
152 #define WTERMSIG(S) ((S) & 0x7f)
155 #define WIFEXITED(S) (((S) & 0xff) == 0)
158 #define WEXITSTATUS(S) (((S) & 0xff00) >> 8)
161 /* Declaring stat or __flsbuf with a prototype
162 causes conflicts with system headers on some systems. */
164 #if 0 /* These conflict with stdio.h on some systems. */
166 extern int fprintf (FILE *, const char *, ...);
167 extern int printf (const char *, ...);
168 extern int open (const char *, int, ...);
173 extern int fflush ();
178 extern int unlink ();
179 extern int access ();
181 #if 0 /* size_t from sys/types.h may fail to match GCC.
182 If so, we would get a warning from this. */
183 extern size_t strlen ()
186 /* Fork is not declared because the declaration caused a conflict
188 #if !(defined (USG) || defined (VMS))
190 #endif /* (defined (USG) || defined (VMS)) */
192 #endif /* !defined (POSIX) */
194 /* Look for these where the `const' qualifier is intentionally cast aside. */
198 /* Define a default place to find the SYSCALLS.X file. */
200 #ifndef STD_PROTO_DIR
201 #define STD_PROTO_DIR "/usr/local/lib"
202 #endif /* !defined (STD_PROTO_DIR) */
204 /* Suffix of aux_info files. */
206 static const char * const aux_info_suffix = ".X";
208 /* String to attach to filenames for saved versions of original files. */
210 static const char * const save_suffix = ".save";
214 /* File name of the file which contains descriptions of standard system
215 routines. Note that we never actually do anything with this file per se,
216 but we do read in its corresponding aux_info file. */
218 static const char syscalls_filename[] = "SYSCALLS.c";
220 /* Default place to find the above file. */
222 static const char * const default_syscalls_dir = STD_PROTO_DIR;
224 /* Variable to hold the complete absolutized filename of the SYSCALLS.c.X
227 static char * syscalls_absolute_filename;
229 #endif /* !defined (UNPROTOIZE) */
231 /* Type of the structure that holds information about macro unexpansions. */
233 struct unexpansion_struct {
234 const char *expanded;
235 const char *contracted;
237 typedef struct unexpansion_struct unexpansion;
239 /* A table of conversions that may need to be made for some (stupid) older
240 operating systems where these types are preprocessor macros rather than
241 typedefs (as they really ought to be).
243 WARNING: The contracted forms must be as small (or smaller) as the
244 expanded forms, or else havoc will ensue. */
246 static const unexpansion unexpansions[] = {
247 { "struct _iobuf", "FILE" },
251 /* The number of "primary" slots in the hash tables for filenames and for
252 function names. This can be as big or as small as you like, except that
253 it must be a power of two. */
255 #define HASH_TABLE_SIZE (1 << 9)
257 /* Bit mask to use when computing hash values. */
259 static const int hash_mask = (HASH_TABLE_SIZE - 1);
261 /* Make a table of default system include directories
262 just as it is done in cccp.c. */
264 #ifndef STANDARD_INCLUDE_DIR
265 #define STANDARD_INCLUDE_DIR "/usr/include"
268 #ifndef LOCAL_INCLUDE_DIR
269 #define LOCAL_INCLUDE_DIR "/usr/local/include"
272 struct default_include { const char *fname;
273 const char *component;
274 int x1, x2; } include_defaults[]
275 #ifdef INCLUDE_DEFAULTS
279 /* Pick up GNU C++ specific include files. */
280 { GPLUSPLUS_INCLUDE_DIR, "G++", 1, 1 },
282 /* This is the dir for fixincludes. Put it just before
283 the files that we fix. */
284 { GCC_INCLUDE_DIR, "GCC", 0, 0 },
285 /* For cross-compilation, this dir name is generated
286 automatically in Makefile.in. */
287 { CROSS_INCLUDE_DIR, 0, 0, 0 },
288 /* This is another place that the target system's headers might be. */
289 { TOOL_INCLUDE_DIR, "BINUTILS", 0, 0 },
290 #else /* not CROSS_COMPILE */
291 /* This should be /use/local/include and should come before
292 the fixincludes-fixed header files. */
293 { LOCAL_INCLUDE_DIR, 0, 0, 1 },
294 /* This is here ahead of GCC_INCLUDE_DIR because assert.h goes here.
295 Likewise, behind LOCAL_INCLUDE_DIR, where glibc puts its assert.h. */
296 { TOOL_INCLUDE_DIR, "BINUTILS", 0, 0 },
297 /* This is the dir for fixincludes. Put it just before
298 the files that we fix. */
299 { GCC_INCLUDE_DIR, "GCC", 0, 0 },
300 /* Some systems have an extra dir of include files. */
301 #ifdef SYSTEM_INCLUDE_DIR
302 { SYSTEM_INCLUDE_DIR, 0, 0, 0 },
304 { STANDARD_INCLUDE_DIR, 0, 0, 0},
305 #endif /* not CROSS_COMPILE */
308 #endif /* no INCLUDE_DEFAULTS */
310 /* Datatype for lists of directories or filenames. */
314 struct string_list *next;
317 /* List of directories in which files should be converted. */
319 struct string_list *directory_list;
321 /* List of file names which should not be converted.
322 A file is excluded if the end of its name, following a /,
323 matches one of the names in this list. */
325 struct string_list *exclude_list;
327 /* The name of the other style of variable-number-of-parameters functions
328 (i.e. the style that we want to leave unconverted because we don't yet
329 know how to convert them to this style. This string is used in warning
332 /* Also define here the string that we can search for in the parameter lists
333 taken from the .X files which will unambiguously indicate that we have
334 found a varargs style function. */
337 static const char * const other_var_style = "stdarg";
338 #else /* !defined (UNPROTOIZE) */
339 static const char * const other_var_style = "varargs";
340 /* Note that this is a string containing the expansion of va_alist.
341 But in `main' we discard all but the first token. */
342 static const char *varargs_style_indicator = STRINGIFY (va_alist);
343 #endif /* !defined (UNPROTOIZE) */
345 /* The following two types are used to create hash tables. In this program,
346 there are two hash tables which are used to store and quickly lookup two
347 different classes of strings. The first type of strings stored in the
348 first hash table are absolute filenames of files which protoize needs to
349 know about. The second type of strings (stored in the second hash table)
350 are function names. It is this second class of strings which really
351 inspired the use of the hash tables, because there may be a lot of them. */
353 typedef struct hash_table_entry_struct hash_table_entry;
355 /* Do some typedefs so that we don't have to write "struct" so often. */
357 typedef struct def_dec_info_struct def_dec_info;
358 typedef struct file_info_struct file_info;
359 typedef struct f_list_chain_item_struct f_list_chain_item;
361 /* In the struct below, note that the "_info" field has two different uses
362 depending on the type of hash table we are in (i.e. either the filenames
363 hash table or the function names hash table). In the filenames hash table
364 the info fields of the entries point to the file_info struct which is
365 associated with each filename (1 per filename). In the function names
366 hash table, the info field points to the head of a singly linked list of
367 def_dec_info entries which are all defs or decs of the function whose
368 name is pointed to by the "symbol" field. Keeping all of the defs/decs
369 for a given function name on a special list specifically for that function
370 name makes it quick and easy to find out all of the important information
371 about a given (named) function. */
373 struct hash_table_entry_struct {
374 hash_table_entry * hash_next; /* -> to secondary entries */
375 const char * symbol; /* -> to the hashed string */
377 const def_dec_info * _ddip;
381 #define ddip _info._ddip
382 #define fip _info._fip
384 /* Define a type specifically for our two hash tables. */
386 typedef hash_table_entry hash_table[HASH_TABLE_SIZE];
388 /* The following struct holds all of the important information about any
389 single filename (e.g. file) which we need to know about. */
391 struct file_info_struct {
392 const hash_table_entry * hash_entry; /* -> to associated hash entry */
393 const def_dec_info * defs_decs; /* -> to chain of defs/decs */
394 time_t mtime; /* Time of last modification. */
397 /* Due to the possibility that functions may return pointers to functions,
398 (which may themselves have their own parameter lists) and due to the
399 fact that returned pointers-to-functions may be of type "pointer-to-
400 function-returning-pointer-to-function" (ad nauseum) we have to keep
401 an entire chain of ANSI style formal parameter lists for each function.
403 Normally, for any given function, there will only be one formals list
404 on the chain, but you never know.
406 Note that the head of each chain of formals lists is pointed to by the
407 `f_list_chain' field of the corresponding def_dec_info record.
409 For any given chain, the item at the head of the chain is the *leftmost*
410 parameter list seen in the actual C language function declaration. If
411 there are other members of the chain, then these are linked in left-to-right
412 order from the head of the chain. */
414 struct f_list_chain_item_struct {
415 const f_list_chain_item * chain_next; /* -> to next item on chain */
416 const char * formals_list; /* -> to formals list string */
419 /* The following struct holds all of the important information about any
420 single function definition or declaration which we need to know about.
421 Note that for unprotoize we don't need to know very much because we
422 never even create records for stuff that we don't intend to convert
423 (like for instance defs and decs which are already in old K&R format
424 and "implicit" function declarations). */
426 struct def_dec_info_struct {
427 const def_dec_info * next_in_file; /* -> to rest of chain for file */
428 file_info * file; /* -> file_info for containing file */
429 int line; /* source line number of def/dec */
430 const char * ansi_decl; /* -> left end of ansi decl */
431 hash_table_entry * hash_entry; /* -> hash entry for function name */
432 unsigned int is_func_def; /* = 0 means this is a declaration */
433 const def_dec_info * next_for_func; /* -> to rest of chain for func name */
434 unsigned int f_list_count; /* count of formals lists we expect */
435 char prototyped; /* = 0 means already prototyped */
437 const f_list_chain_item * f_list_chain; /* -> chain of formals lists */
438 const def_dec_info * definition; /* -> def/dec containing related def */
439 char is_static; /* = 0 means visibility is "extern" */
440 char is_implicit; /* != 0 for implicit func decl's */
441 char written; /* != 0 means written for implicit */
442 #else /* !defined (UNPROTOIZE) */
443 const char * formal_names; /* -> to list of names of formals */
444 const char * formal_decls; /* -> to string of formal declarations */
445 #endif /* !defined (UNPROTOIZE) */
448 /* Pointer to the tail component of the filename by which this program was
449 invoked. Used everywhere in error and warning messages. */
451 static const char *pname;
453 /* Error counter. Will be non-zero if we should give up at the next convenient
456 static int errors = 0;
459 /* ??? These comments should say what the flag mean as well as the options
462 /* File name to use for running gcc. Allows GCC 2 to be named
463 something other than gcc. */
464 static const char *compiler_file_name = "gcc";
466 static int version_flag = 0; /* Print our version number. */
467 static int quiet_flag = 0; /* Don't print messages normally. */
468 static int nochange_flag = 0; /* Don't convert, just say what files
469 we would have converted. */
470 static int nosave_flag = 0; /* Don't save the old version. */
471 static int keep_flag = 0; /* Don't delete the .X files. */
472 static const char ** compile_params = 0; /* Option string for gcc. */
474 static const char *indent_string = " "; /* Indentation for newly
475 inserted parm decls. */
476 #else /* !defined (UNPROTOIZE) */
477 static int local_flag = 0; /* Insert new local decls (when?). */
478 static int global_flag = 0; /* set by -g option */
479 static int cplusplus_flag = 0; /* Rename converted files to *.C. */
480 static const char *nondefault_syscalls_dir = 0; /* Dir to look for
482 #endif /* !defined (UNPROTOIZE) */
484 /* An index into the compile_params array where we should insert the source
485 file name when we are ready to exec the C compiler. A zero value indicates
486 that we have not yet called munge_compile_params. */
488 static int input_file_name_index = 0;
490 /* An index into the compile_params array where we should insert the filename
491 for the aux info file, when we run the C compiler. */
492 static int aux_info_file_name_index = 0;
494 /* Count of command line arguments which were "filename" arguments. */
496 static int n_base_source_files = 0;
498 /* Points to a malloc'ed list of pointers to all of the filenames of base
499 source files which were specified on the command line. */
501 static const char **base_source_filenames;
503 /* Line number of the line within the current aux_info file that we
504 are currently processing. Used for error messages in case the prototypes
505 info file is corrupted somehow. */
507 static int current_aux_info_lineno;
509 /* Pointer to the name of the source file currently being converted. */
511 static const char *convert_filename;
513 /* Pointer to relative root string (taken from aux_info file) which indicates
514 where directory the user was in when he did the compilation step that
515 produced the containing aux_info file. */
517 static const char *invocation_filename;
519 /* Pointer to the base of the input buffer that holds the original text for the
520 source file currently being converted. */
522 static const char *orig_text_base;
524 /* Pointer to the byte just beyond the end of the input buffer that holds the
525 original text for the source file currently being converted. */
527 static const char *orig_text_limit;
529 /* Pointer to the base of the input buffer that holds the cleaned text for the
530 source file currently being converted. */
532 static const char *clean_text_base;
534 /* Pointer to the byte just beyond the end of the input buffer that holds the
535 cleaned text for the source file currently being converted. */
537 static const char *clean_text_limit;
539 /* Pointer to the last byte in the cleaned text buffer that we have already
540 (virtually) copied to the output buffer (or decided to ignore). */
542 static const char * clean_read_ptr;
544 /* Pointer to the base of the output buffer that holds the replacement text
545 for the source file currently being converted. */
547 static char *repl_text_base;
549 /* Pointer to the byte just beyond the end of the output buffer that holds the
550 replacement text for the source file currently being converted. */
552 static char *repl_text_limit;
554 /* Pointer to the last byte which has been stored into the output buffer.
555 The next byte to be stored should be stored just past where this points
558 static char * repl_write_ptr;
560 /* Pointer into the cleaned text buffer for the source file we are currently
561 converting. This points to the first character of the line that we last
562 did a "seek_to_line" to (see below). */
564 static const char *last_known_line_start;
566 /* Number of the line (in the cleaned text buffer) that we last did a
567 "seek_to_line" to. Will be one if we just read a new source file
568 into the cleaned text buffer. */
570 static int last_known_line_number;
572 /* The filenames hash table. */
574 static hash_table filename_primary;
576 /* The function names hash table. */
578 static hash_table function_name_primary;
580 /* The place to keep the recovery address which is used only in cases where
581 we get hopelessly confused by something in the cleaned original text. */
583 static jmp_buf source_confusion_recovery;
585 /* A pointer to the current directory filename (used by abspath). */
587 static char *cwd_buffer;
589 /* A place to save the read pointer until we are sure that an individual
590 attempt at editing will succeed. */
592 static const char * saved_clean_read_ptr;
594 /* A place to save the write pointer until we are sure that an individual
595 attempt at editing will succeed. */
597 static char * saved_repl_write_ptr;
599 /* Forward declaration. */
601 static const char *shortpath ();
613 static char buffer[30];
617 if (e > 0 && e < sys_nerr)
618 return sys_errlist[e];
620 sprintf (buffer, "Unknown error %d", e);
625 /* Allocate some space, but check that the allocation was successful. */
626 /* alloca.c uses this, so don't make it static. */
634 rv = (pointer_type) malloc (byte_count);
637 fprintf (stderr, "\n%s: virtual memory exceeded\n", pname);
638 exit (FATAL_EXIT_CODE);
639 return 0; /* avoid warnings */
645 /* Reallocate some space, but check that the reallocation was successful. */
648 xrealloc (old_space, byte_count)
649 pointer_type old_space;
654 rv = (pointer_type) realloc (old_space, byte_count);
657 fprintf (stderr, "\n%s: virtual memory exceeded\n", pname);
658 exit (FATAL_EXIT_CODE);
659 return 0; /* avoid warnings */
665 /* Deallocate the area pointed to by an arbitrary pointer, but first, strip
666 the `const' qualifier from it and also make sure that the pointer value
671 const_pointer_type p;
674 free ((NONCONST pointer_type) p);
677 /* Make a copy of a string INPUT with size SIZE. */
680 savestring (input, size)
684 char *output = (char *) xmalloc (size + 1);
685 strcpy (output, input);
689 /* Make a copy of the concatenation of INPUT1 and INPUT2. */
692 savestring2 (input1, size1, input2, size2)
698 char *output = (char *) xmalloc (size1 + size2 + 1);
699 strcpy (output, input1);
700 strcpy (&output[size1], input2);
704 /* More 'friendly' abort that prints the line and file.
705 config.h can #define abort fancy_abort if you like that sort of thing. */
710 fprintf (stderr, "%s: internal abort\n", pname);
711 exit (FATAL_EXIT_CODE);
714 /* Make a duplicate of the first N bytes of a given string in a newly
722 char *ret_val = (char *) xmalloc (n + 1);
724 strncpy (ret_val, s, n);
729 /* Return a pointer to the first occurrence of s2 within s1 or NULL if s2
730 does not occur within s1. Assume neither s1 nor s2 are null pointers. */
735 const char *const s2;
743 for (p1 = s1, p2 = s2; (c = *p2); p1++, p2++)
753 /* Read LEN bytes at PTR from descriptor DESC, for file FILENAME,
754 retrying if necessary. Return the actual number of bytes read. */
757 safe_read (desc, ptr, len)
764 int nchars = read (desc, ptr, left);
781 /* Write LEN bytes at PTR to descriptor DESC,
782 retrying if necessary, and treating any real error as fatal. */
785 safe_write (desc, ptr, len, out_fname)
792 int written = write (desc, ptr, len);
795 int errno_val = errno;
797 if (errno_val == EINTR)
800 fprintf (stderr, "%s: error writing file `%s': %s\n",
801 pname, shortpath (NULL, out_fname), my_strerror (errno_val));
809 /* Get setup to recover in case the edit we are about to do goes awry. */
814 saved_clean_read_ptr = clean_read_ptr;
815 saved_repl_write_ptr = repl_write_ptr;
818 /* Call this routine to recover our previous state whenever something looks
819 too confusing in the source code we are trying to edit. */
824 clean_read_ptr = saved_clean_read_ptr;
825 repl_write_ptr = saved_repl_write_ptr;
828 /* Return true if the given character is a valid identifier character. */
834 return (ISALNUM (ch) || (ch == '_') || (ch == '$'));
837 /* Give a message indicating the proper way to invoke this program and then
838 exit with non-zero status. */
844 fprintf (stderr, "%s: usage '%s [ -VqfnkN ] [ -i <istring> ] [ filename ... ]'\n",
846 #else /* !defined (UNPROTOIZE) */
847 fprintf (stderr, "%s: usage '%s [ -VqfnkNlgC ] [ -B <dirname> ] [ filename ... ]'\n",
849 #endif /* !defined (UNPROTOIZE) */
850 exit (FATAL_EXIT_CODE);
853 /* Return true if the given filename (assumed to be an absolute filename)
854 designates a file residing anywhere beneath any one of the "system"
855 include directories. */
858 in_system_include_dir (path)
861 struct default_include *p;
864 abort (); /* Must be an absolutized filename. */
866 for (p = include_defaults; p->fname; p++)
867 if (!strncmp (path, p->fname, strlen (p->fname))
868 && path[strlen (p->fname)] == '/')
874 /* Return true if the given filename designates a file that the user has
875 read access to and for which the user has write access to the containing
879 file_could_be_converted (const char *path)
881 char *const dir_name = (char *) alloca (strlen (path) + 1);
883 if (my_access (path, R_OK))
887 char *dir_last_slash;
889 strcpy (dir_name, path);
890 dir_last_slash = strrchr (dir_name, '/');
892 *dir_last_slash = '\0';
894 abort (); /* Should have been an absolutized filename. */
897 if (my_access (path, W_OK))
903 /* Return true if the given filename designates a file that we are allowed
904 to modify. Files which we should not attempt to modify are (a) "system"
905 include files, and (b) files which the user doesn't have write access to,
906 and (c) files which reside in directories which the user doesn't have
907 write access to. Unless requested to be quiet, give warnings about
908 files that we will not try to convert for one reason or another. An
909 exception is made for "system" include files, which we never try to
910 convert and for which we don't issue the usual warnings. */
913 file_normally_convertible (const char *path)
915 char *const dir_name = alloca (strlen (path) + 1);
917 if (in_system_include_dir (path))
921 char *dir_last_slash;
923 strcpy (dir_name, path);
924 dir_last_slash = strrchr (dir_name, '/');
926 *dir_last_slash = '\0';
928 abort (); /* Should have been an absolutized filename. */
931 if (my_access (path, R_OK))
934 fprintf (stderr, "%s: warning: no read access for file `%s'\n",
935 pname, shortpath (NULL, path));
939 if (my_access (path, W_OK))
942 fprintf (stderr, "%s: warning: no write access for file `%s'\n",
943 pname, shortpath (NULL, path));
947 if (my_access (dir_name, W_OK))
950 fprintf (stderr, "%s: warning: no write access for dir containing `%s'\n",
951 pname, shortpath (NULL, path));
961 /* Return true if the given file_info struct refers to the special SYSCALLS.c.X
962 file. Return false otherwise. */
965 is_syscalls_file (fi_p)
966 const file_info *fi_p;
968 char const *f = fi_p->hash_entry->symbol;
969 size_t fl = strlen (f), sysl = sizeof (syscalls_filename) - 1;
970 return sysl <= fl && strcmp (f + fl - sysl, syscalls_filename) == 0;
973 #endif /* !defined (UNPROTOIZE) */
975 /* Check to see if this file will need to have anything done to it on this
976 run. If there is nothing in the given file which both needs conversion
977 and for which we have the necessary stuff to do the conversion, return
978 false. Otherwise, return true.
980 Note that (for protoize) it is only valid to call this function *after*
981 the connections between declarations and definitions have all been made
982 by connect_defs_and_decs. */
985 needs_to_be_converted (file_p)
986 const file_info *file_p;
988 const def_dec_info *ddp;
992 if (is_syscalls_file (file_p))
995 #endif /* !defined (UNPROTOIZE) */
997 for (ddp = file_p->defs_decs; ddp; ddp = ddp->next_in_file)
1003 /* ... and if we a protoizing and this function is in old style ... */
1005 /* ... and if this a definition or is a decl with an associated def ... */
1006 && (ddp->is_func_def || (!ddp->is_func_def && ddp->definition))
1008 #else /* defined (UNPROTOIZE) */
1010 /* ... and if we are unprotoizing and this function is in new style ... */
1013 #endif /* defined (UNPROTOIZE) */
1015 /* ... then the containing file needs converting. */
1020 /* Return 1 if the file name NAME is in a directory
1021 that should be converted. */
1024 directory_specified_p (name)
1027 struct string_list *p;
1029 for (p = directory_list; p; p = p->next)
1030 if (!strncmp (name, p->name, strlen (p->name))
1031 && name[strlen (p->name)] == '/')
1033 const char *q = name + strlen (p->name) + 1;
1035 /* If there are more slashes, it's in a subdir, so
1036 this match doesn't count. */
1048 /* Return 1 if the file named NAME should be excluded from conversion. */
1051 file_excluded_p (name)
1054 struct string_list *p;
1055 int len = strlen (name);
1057 for (p = exclude_list; p; p = p->next)
1058 if (!strcmp (name + len - strlen (p->name), p->name)
1059 && name[len - strlen (p->name) - 1] == '/')
1065 /* Construct a new element of a string_list.
1066 STRING is the new element value, and REST holds the remaining elements. */
1068 static struct string_list *
1069 string_list_cons (string, rest)
1071 struct string_list *rest;
1073 struct string_list *temp
1074 = (struct string_list *) xmalloc (sizeof (struct string_list));
1077 temp->name = string;
1081 /* ??? The GNU convention for mentioning function args in its comments
1082 is to capitalize them. So change "hash_tab_p" to HASH_TAB_P below.
1083 Likewise for all the other functions. */
1085 /* Given a hash table, apply some function to each node in the table. The
1086 table to traverse is given as the "hash_tab_p" argument, and the
1087 function to be applied to each node in the table is given as "func"
1091 visit_each_hash_node (hash_tab_p, func)
1092 const hash_table_entry *hash_tab_p;
1095 const hash_table_entry *primary;
1097 for (primary = hash_tab_p; primary < &hash_tab_p[HASH_TABLE_SIZE]; primary++)
1098 if (primary->symbol)
1100 hash_table_entry *second;
1103 for (second = primary->hash_next; second; second = second->hash_next)
1108 /* Initialize all of the fields of a new hash table entry, pointed
1109 to by the "p" parameter. Note that the space to hold the entry
1110 is assumed to have already been allocated before this routine is
1113 static hash_table_entry *
1115 hash_table_entry *p;
1118 p->hash_next = NULL;
1119 p->symbol = savestring (s, strlen (s));
1125 /* Look for a particular function name or filename in the particular
1126 hash table indicated by "hash_tab_p". If the name is not in the
1127 given hash table, add it. Either way, return a pointer to the
1128 hash table entry for the given name. */
1130 static hash_table_entry *
1131 lookup (hash_tab_p, search_symbol)
1132 hash_table_entry *hash_tab_p;
1133 const char *search_symbol;
1136 const char *search_symbol_char_p = search_symbol;
1137 hash_table_entry *p;
1139 while (*search_symbol_char_p)
1140 hash_value += *search_symbol_char_p++;
1141 hash_value &= hash_mask;
1142 p = &hash_tab_p[hash_value];
1144 return add_symbol (p, search_symbol);
1145 if (!strcmp (p->symbol, search_symbol))
1147 while (p->hash_next)
1150 if (!strcmp (p->symbol, search_symbol))
1153 p->hash_next = (hash_table_entry *) xmalloc (sizeof (hash_table_entry));
1155 return add_symbol (p, search_symbol);
1158 /* Throw a def/dec record on the junk heap.
1160 Also, since we are not using this record anymore, free up all of the
1161 stuff it pointed to. */
1167 xfree (p->ansi_decl);
1171 const f_list_chain_item * curr;
1172 const f_list_chain_item * next;
1174 for (curr = p->f_list_chain; curr; curr = next)
1176 next = curr->chain_next;
1180 #endif /* !defined (UNPROTOIZE) */
1185 /* Unexpand as many macro symbol as we can find.
1187 If the given line must be unexpanded, make a copy of it in the heap and
1188 return a pointer to the unexpanded copy. Otherwise return NULL. */
1191 unexpand_if_needed (aux_info_line)
1192 const char *aux_info_line;
1194 static char *line_buf = 0;
1195 static int line_buf_size = 0;
1196 const unexpansion *unexp_p;
1197 int got_unexpanded = 0;
1199 char *copy_p = line_buf;
1203 line_buf_size = 1024;
1204 line_buf = (char *) xmalloc (line_buf_size);
1209 /* Make a copy of the input string in line_buf, expanding as necessary. */
1211 for (s = aux_info_line; *s != '\n'; )
1213 for (unexp_p = unexpansions; unexp_p->expanded; unexp_p++)
1215 const char *in_p = unexp_p->expanded;
1216 size_t len = strlen (in_p);
1218 if (*s == *in_p && !strncmp (s, in_p, len) && !is_id_char (s[len]))
1220 int size = strlen (unexp_p->contracted);
1222 if (copy_p + size - line_buf >= line_buf_size)
1224 int offset = copy_p - line_buf;
1226 line_buf_size += size;
1227 line_buf = (char *) xrealloc (line_buf, line_buf_size);
1228 copy_p = line_buf + offset;
1230 strcpy (copy_p, unexp_p->contracted);
1233 /* Assume the there will not be another replacement required
1234 within the text just replaced. */
1237 goto continue_outer;
1240 if (copy_p - line_buf == line_buf_size)
1242 int offset = copy_p - line_buf;
1244 line_buf = (char *) xrealloc (line_buf, line_buf_size);
1245 copy_p = line_buf + offset;
1250 if (copy_p + 2 - line_buf >= line_buf_size)
1252 int offset = copy_p - line_buf;
1254 line_buf = (char *) xrealloc (line_buf, line_buf_size);
1255 copy_p = line_buf + offset;
1260 return (got_unexpanded ? savestring (line_buf, copy_p - line_buf) : 0);
1263 /* Return the absolutized filename for the given relative
1264 filename. Note that if that filename is already absolute, it may
1265 still be returned in a modified form because this routine also
1266 eliminates redundant slashes and single dots and eliminates double
1267 dots to get a shortest possible filename from the given input
1268 filename. The absolutization of relative filenames is made by
1269 assuming that the given filename is to be taken as relative to
1270 the first argument (cwd) or to the current directory if cwd is
1274 abspath (cwd, rel_filename)
1276 const char *rel_filename;
1278 /* Setup the current working directory as needed. */
1279 const char *cwd2 = (cwd) ? cwd : cwd_buffer;
1280 char *const abs_buffer
1281 = (char *) alloca (strlen (cwd2) + strlen (rel_filename) + 2);
1282 char *endp = abs_buffer;
1285 /* Copy the filename (possibly preceded by the current working
1286 directory name) into the absolutization buffer. */
1291 if (rel_filename[0] != '/')
1294 while ((*endp++ = *src_p++))
1296 *(endp-1) = '/'; /* overwrite null */
1298 src_p = rel_filename;
1299 while ((*endp++ = *src_p++))
1303 /* Now make a copy of abs_buffer into abs_buffer, shortening the
1304 filename (by taking out slashes and dots) as we go. */
1306 outp = inp = abs_buffer;
1307 *outp++ = *inp++; /* copy first slash */
1310 *outp++ = *inp++; /* copy second slash */
1316 else if (inp[0] == '/' && outp[-1] == '/')
1321 else if (inp[0] == '.' && outp[-1] == '/')
1325 else if (inp[1] == '/')
1330 else if ((inp[1] == '.') && (inp[2] == 0 || inp[2] == '/'))
1332 inp += (inp[2] == '/') ? 3 : 2;
1334 while (outp >= abs_buffer && *outp != '/')
1336 if (outp < abs_buffer)
1338 /* Catch cases like /.. where we try to backup to a
1339 point above the absolute root of the logical file
1342 fprintf (stderr, "%s: invalid file name: %s\n",
1343 pname, rel_filename);
1344 exit (FATAL_EXIT_CODE);
1353 /* On exit, make sure that there is a trailing null, and make sure that
1354 the last character of the returned string is *not* a slash. */
1357 if (outp[-1] == '/')
1360 /* Make a copy (in the heap) of the stuff left in the absolutization
1361 buffer and return a pointer to the copy. */
1363 return savestring (abs_buffer, outp - abs_buffer);
1366 /* Given a filename (and possibly a directory name from which the filename
1367 is relative) return a string which is the shortest possible
1368 equivalent for the corresponding full (absolutized) filename. The
1369 shortest possible equivalent may be constructed by converting the
1370 absolutized filename to be a relative filename (i.e. relative to
1371 the actual current working directory). However if a relative filename
1372 is longer, then the full absolute filename is returned.
1376 Note that "simple-minded" conversion of any given type of filename (either
1377 relative or absolute) may not result in a valid equivalent filename if any
1378 subpart of the original filename is actually a symbolic link. */
1381 shortpath (cwd, filename)
1383 const char *filename;
1387 char *cwd_p = cwd_buffer;
1389 int unmatched_slash_count = 0;
1390 size_t filename_len = strlen (filename);
1392 path_p = abspath (cwd, filename);
1393 rel_buf_p = rel_buffer = (char *) xmalloc (filename_len);
1395 while (*cwd_p && (*cwd_p == *path_p))
1400 if (!*cwd_p && (!*path_p || *path_p == '/')) /* whole pwd matched */
1402 if (!*path_p) /* input *is* the current path! */
1413 while (*cwd_p != '/') /* backup to last slash */
1420 unmatched_slash_count++;
1423 /* Find out how many directory levels in cwd were *not* matched. */
1425 if (*cwd_p++ == '/')
1426 unmatched_slash_count++;
1428 /* Now we know how long the "short name" will be.
1429 Reject it if longer than the input. */
1430 if (unmatched_slash_count * 3 + strlen (path_p) >= filename_len)
1433 /* For each of them, put a `../' at the beginning of the short name. */
1434 while (unmatched_slash_count--)
1436 /* Give up if the result gets to be longer
1437 than the absolute path name. */
1438 if (rel_buffer + filename_len <= rel_buf_p + 3)
1445 /* Then tack on the unmatched part of the desired file's name. */
1448 if (rel_buffer + filename_len <= rel_buf_p)
1451 while ((*rel_buf_p++ = *path_p++));
1454 if (*(rel_buf_p-1) == '/')
1455 *--rel_buf_p = '\0';
1460 /* Lookup the given filename in the hash table for filenames. If it is a
1461 new one, then the hash table info pointer will be null. In this case,
1462 we create a new file_info record to go with the filename, and we initialize
1463 that record with some reasonable values. */
1465 /* FILENAME was const, but that causes a warning on AIX when calling stat.
1466 That is probably a bug in AIX, but might as well avoid the warning. */
1469 find_file (filename, do_not_stat)
1473 hash_table_entry *hash_entry_p;
1475 hash_entry_p = lookup (filename_primary, filename);
1476 if (hash_entry_p->fip)
1477 return hash_entry_p->fip;
1480 struct stat stat_buf;
1481 file_info *file_p = (file_info *) xmalloc (sizeof (file_info));
1483 /* If we cannot get status on any given source file, give a warning
1484 and then just set its time of last modification to infinity. */
1487 stat_buf.st_mtime = (time_t) 0;
1490 if (my_stat (filename, &stat_buf) == -1)
1492 int errno_val = errno;
1493 fprintf (stderr, "%s: %s: can't get status: %s\n",
1494 pname, shortpath (NULL, filename),
1495 my_strerror (errno_val));
1496 stat_buf.st_mtime = (time_t) -1;
1500 hash_entry_p->fip = file_p;
1501 file_p->hash_entry = hash_entry_p;
1502 file_p->defs_decs = NULL;
1503 file_p->mtime = stat_buf.st_mtime;
1508 /* Generate a fatal error because some part of the aux_info file is
1512 aux_info_corrupted ()
1514 fprintf (stderr, "\n%s: fatal error: aux info file corrupted at line %d\n",
1515 pname, current_aux_info_lineno);
1516 exit (FATAL_EXIT_CODE);
1519 /* ??? This comment is vague. Say what the condition is for. */
1520 /* Check to see that a condition is true. This is kind of like an assert. */
1523 check_aux_info (cond)
1527 aux_info_corrupted ();
1530 /* Given a pointer to the closing right parenthesis for a particular formals
1531 list (in an aux_info file) find the corresponding left parenthesis and
1532 return a pointer to it. */
1535 find_corresponding_lparen (p)
1541 for (paren_depth = 1, q = p-1; paren_depth; q--)
1556 /* Given a line from an aux info file, and a time at which the aux info
1557 file it came from was created, check to see if the item described in
1558 the line comes from a file which has been modified since the aux info
1559 file was created. If so, return non-zero, else return zero. */
1562 referenced_file_is_newer (l, aux_info_mtime)
1564 time_t aux_info_mtime;
1570 check_aux_info (l[0] == '/');
1571 check_aux_info (l[1] == '*');
1572 check_aux_info (l[2] == ' ');
1575 const char *filename_start = p = l + 3;
1579 filename = (char *) alloca ((size_t) (p - filename_start) + 1);
1580 strncpy (filename, filename_start, (size_t) (p - filename_start));
1581 filename[p-filename_start] = '\0';
1584 /* Call find_file to find the file_info record associated with the file
1585 which contained this particular def or dec item. Note that this call
1586 may cause a new file_info record to be created if this is the first time
1587 that we have ever known about this particular file. */
1589 fi_p = find_file (abspath (invocation_filename, filename), 0);
1591 return (fi_p->mtime > aux_info_mtime);
1594 /* Given a line of info from the aux_info file, create a new
1595 def_dec_info record to remember all of the important information about
1596 a function definition or declaration.
1598 Link this record onto the list of such records for the particular file in
1599 which it occurred in proper (descending) line number order (for now).
1601 If there is an identical record already on the list for the file, throw
1602 this one away. Doing so takes care of the (useless and troublesome)
1603 duplicates which are bound to crop up due to multiple inclusions of any
1604 given individual header file.
1606 Finally, link the new def_dec record onto the list of such records
1607 pertaining to this particular function name. */
1610 save_def_or_dec (l, is_syscalls)
1615 const char *semicolon_p;
1616 def_dec_info *def_dec_p = (def_dec_info *) xmalloc (sizeof (def_dec_info));
1619 def_dec_p->written = 0;
1620 #endif /* !defined (UNPROTOIZE) */
1622 /* Start processing the line by picking off 5 pieces of information from
1623 the left hand end of the line. These are filename, line number,
1624 new/old/implicit flag (new = ANSI prototype format), definition or
1625 declaration flag, and extern/static flag). */
1627 check_aux_info (l[0] == '/');
1628 check_aux_info (l[1] == '*');
1629 check_aux_info (l[2] == ' ');
1632 const char *filename_start = p = l + 3;
1637 filename = (char *) alloca ((size_t) (p - filename_start) + 1);
1638 strncpy (filename, filename_start, (size_t) (p - filename_start));
1639 filename[p-filename_start] = '\0';
1641 /* Call find_file to find the file_info record associated with the file
1642 which contained this particular def or dec item. Note that this call
1643 may cause a new file_info record to be created if this is the first time
1644 that we have ever known about this particular file.
1646 Note that we started out by forcing all of the base source file names
1647 (i.e. the names of the aux_info files with the .X stripped off) into the
1648 filenames hash table, and we simultaneously setup file_info records for
1649 all of these base file names (even if they may be useless later).
1650 The file_info records for all of these "base" file names (properly)
1651 act as file_info records for the "original" (i.e. un-included) files
1652 which were submitted to gcc for compilation (when the -aux-info
1653 option was used). */
1655 def_dec_p->file = find_file (abspath (invocation_filename, filename), is_syscalls);
1659 const char *line_number_start = ++p;
1660 char line_number[10];
1664 strncpy (line_number, line_number_start, (size_t) (p - line_number_start));
1665 line_number[p-line_number_start] = '\0';
1666 def_dec_p->line = atoi (line_number);
1669 /* Check that this record describes a new-style, old-style, or implicit
1670 definition or declaration. */
1672 p++; /* Skip over the `:'. */
1673 check_aux_info ((*p == 'N') || (*p == 'O') || (*p == 'I'));
1675 /* Is this a new style (ANSI prototyped) definition or declaration? */
1677 def_dec_p->prototyped = (*p == 'N');
1681 /* Is this an implicit declaration? */
1683 def_dec_p->is_implicit = (*p == 'I');
1685 #endif /* !defined (UNPROTOIZE) */
1689 check_aux_info ((*p == 'C') || (*p == 'F'));
1691 /* Is this item a function definition (F) or a declaration (C). Note that
1692 we treat item taken from the syscalls file as though they were function
1693 definitions regardless of what the stuff in the file says. */
1695 def_dec_p->is_func_def = ((*p++ == 'F') || is_syscalls);
1698 def_dec_p->definition = 0; /* Fill this in later if protoizing. */
1699 #endif /* !defined (UNPROTOIZE) */
1701 check_aux_info (*p++ == ' ');
1702 check_aux_info (*p++ == '*');
1703 check_aux_info (*p++ == '/');
1704 check_aux_info (*p++ == ' ');
1707 check_aux_info ((!strncmp (p, "static", 6)) || (!strncmp (p, "extern", 6)));
1708 #else /* !defined (UNPROTOIZE) */
1709 if (!strncmp (p, "static", 6))
1710 def_dec_p->is_static = -1;
1711 else if (!strncmp (p, "extern", 6))
1712 def_dec_p->is_static = 0;
1714 check_aux_info (0); /* Didn't find either `extern' or `static'. */
1715 #endif /* !defined (UNPROTOIZE) */
1718 const char *ansi_start = p;
1720 p += 6; /* Pass over the "static" or "extern". */
1722 /* We are now past the initial stuff. Search forward from here to find
1723 the terminating semicolon that should immediately follow the entire
1724 ANSI format function declaration. */
1731 /* Make a copy of the ansi declaration part of the line from the aux_info
1734 def_dec_p->ansi_decl
1735 = dupnstr (ansi_start, (size_t) ((semicolon_p+1) - ansi_start));
1737 /* Backup and point at the final right paren of the final argument list. */
1742 def_dec_p->f_list_chain = NULL;
1743 #endif /* !defined (UNPROTOIZE) */
1745 while (p != ansi_start && (p[-1] == ' ' || p[-1] == '\t')) p--;
1748 free_def_dec (def_dec_p);
1753 /* Now isolate a whole set of formal argument lists, one-by-one. Normally,
1754 there will only be one list to isolate, but there could be more. */
1756 def_dec_p->f_list_count = 0;
1760 const char *left_paren_p = find_corresponding_lparen (p);
1763 f_list_chain_item *cip
1764 = (f_list_chain_item *) xmalloc (sizeof (f_list_chain_item));
1767 = dupnstr (left_paren_p + 1, (size_t) (p - (left_paren_p+1)));
1769 /* Add the new chain item at the head of the current list. */
1771 cip->chain_next = def_dec_p->f_list_chain;
1772 def_dec_p->f_list_chain = cip;
1774 #endif /* !defined (UNPROTOIZE) */
1775 def_dec_p->f_list_count++;
1777 p = left_paren_p - 2;
1779 /* p must now point either to another right paren, or to the last
1780 character of the name of the function that was declared/defined.
1781 If p points to another right paren, then this indicates that we
1782 are dealing with multiple formals lists. In that case, there
1783 really should be another right paren preceding this right paren. */
1788 check_aux_info (*--p == ')');
1793 const char *past_fn = p + 1;
1795 check_aux_info (*past_fn == ' ');
1797 /* Scan leftwards over the identifier that names the function. */
1799 while (is_id_char (*p))
1803 /* p now points to the leftmost character of the function name. */
1806 char *fn_string = (char *) alloca (past_fn - p + 1);
1808 strncpy (fn_string, p, (size_t) (past_fn - p));
1809 fn_string[past_fn-p] = '\0';
1810 def_dec_p->hash_entry = lookup (function_name_primary, fn_string);
1814 /* Look at all of the defs and decs for this function name that we have
1815 collected so far. If there is already one which is at the same
1816 line number in the same file, then we can discard this new def_dec_info
1819 As an extra assurance that any such pair of (nominally) identical
1820 function declarations are in fact identical, we also compare the
1821 ansi_decl parts of the lines from the aux_info files just to be on
1824 This comparison will fail if (for instance) the user was playing
1825 messy games with the preprocessor which ultimately causes one
1826 function declaration in one header file to look differently when
1827 that file is included by two (or more) other files. */
1830 const def_dec_info *other;
1832 for (other = def_dec_p->hash_entry->ddip; other; other = other->next_for_func)
1834 if (def_dec_p->line == other->line && def_dec_p->file == other->file)
1836 if (strcmp (def_dec_p->ansi_decl, other->ansi_decl))
1838 fprintf (stderr, "%s:%d: declaration of function `%s' takes different forms\n",
1839 def_dec_p->file->hash_entry->symbol,
1841 def_dec_p->hash_entry->symbol);
1842 exit (FATAL_EXIT_CODE);
1844 free_def_dec (def_dec_p);
1852 /* If we are doing unprotoizing, we must now setup the pointers that will
1853 point to the K&R name list and to the K&R argument declarations list.
1855 Note that if this is only a function declaration, then we should not
1856 expect to find any K&R style formals list following the ANSI-style
1857 formals list. This is because GCC knows that such information is
1858 useless in the case of function declarations (function definitions
1859 are a different story however).
1861 Since we are unprotoizing, we don't need any such lists anyway.
1862 All we plan to do is to delete all characters between ()'s in any
1865 def_dec_p->formal_names = NULL;
1866 def_dec_p->formal_decls = NULL;
1868 if (def_dec_p->is_func_def)
1871 check_aux_info (*++p == ' ');
1872 check_aux_info (*++p == '/');
1873 check_aux_info (*++p == '*');
1874 check_aux_info (*++p == ' ');
1875 check_aux_info (*++p == '(');
1878 const char *kr_names_start = ++p; /* Point just inside '('. */
1882 p--; /* point to closing right paren */
1884 /* Make a copy of the K&R parameter names list. */
1886 def_dec_p->formal_names
1887 = dupnstr (kr_names_start, (size_t) (p - kr_names_start));
1890 check_aux_info (*++p == ' ');
1893 /* p now points to the first character of the K&R style declarations
1894 list (if there is one) or to the star-slash combination that ends
1895 the comment in which such lists get embedded. */
1897 /* Make a copy of the K&R formal decls list and set the def_dec record
1900 if (*p == '*') /* Are there no K&R declarations? */
1902 check_aux_info (*++p == '/');
1903 def_dec_p->formal_decls = "";
1907 const char *kr_decls_start = p;
1909 while (p[0] != '*' || p[1] != '/')
1913 check_aux_info (*p == ' ');
1915 def_dec_p->formal_decls
1916 = dupnstr (kr_decls_start, (size_t) (p - kr_decls_start));
1919 /* Handle a special case. If we have a function definition marked as
1920 being in "old" style, and if its formal names list is empty, then
1921 it may actually have the string "void" in its real formals list
1922 in the original source code. Just to make sure, we will get setup
1923 to convert such things anyway.
1925 This kludge only needs to be here because of an insurmountable
1926 problem with generating .X files. */
1928 if (!def_dec_p->prototyped && !*def_dec_p->formal_names)
1929 def_dec_p->prototyped = 1;
1932 /* Since we are unprotoizing, if this item is already in old (K&R) style,
1933 we can just ignore it. If that is true, throw away the itme now. */
1935 if (!def_dec_p->prototyped)
1937 free_def_dec (def_dec_p);
1941 #endif /* defined (UNPROTOIZE) */
1943 /* Add this record to the head of the list of records pertaining to this
1944 particular function name. */
1946 def_dec_p->next_for_func = def_dec_p->hash_entry->ddip;
1947 def_dec_p->hash_entry->ddip = def_dec_p;
1949 /* Add this new def_dec_info record to the sorted list of def_dec_info
1950 records for this file. Note that we don't have to worry about duplicates
1951 (caused by multiple inclusions of header files) here because we have
1952 already eliminated duplicates above. */
1954 if (!def_dec_p->file->defs_decs)
1956 def_dec_p->file->defs_decs = def_dec_p;
1957 def_dec_p->next_in_file = NULL;
1961 int line = def_dec_p->line;
1962 const def_dec_info *prev = NULL;
1963 const def_dec_info *curr = def_dec_p->file->defs_decs;
1964 const def_dec_info *next = curr->next_in_file;
1966 while (next && (line < curr->line))
1970 next = next->next_in_file;
1972 if (line >= curr->line)
1974 def_dec_p->next_in_file = curr;
1976 ((NONCONST def_dec_info *) prev)->next_in_file = def_dec_p;
1978 def_dec_p->file->defs_decs = def_dec_p;
1980 else /* assert (next == NULL); */
1982 ((NONCONST def_dec_info *) curr)->next_in_file = def_dec_p;
1983 /* assert (next == NULL); */
1984 def_dec_p->next_in_file = next;
1989 /* Set up the vector COMPILE_PARAMS which is the argument list for running GCC.
1990 Also set input_file_name_index and aux_info_file_name_index
1991 to the indices of the slots where the file names should go. */
1993 /* We initialize the vector by removing -g, -O, -S, -c, and -o options,
1994 and adding '-aux-info AUXFILE -S -o /dev/null INFILE' at the end. */
1997 munge_compile_params (params_list)
1998 const char *params_list;
2000 /* Build up the contents in a temporary vector
2001 that is so big that to has to be big enough. */
2002 const char **temp_params
2003 = (const char **) alloca ((strlen (params_list) + 8) * sizeof (char *));
2004 int param_count = 0;
2007 temp_params[param_count++] = compiler_file_name;
2010 while (ISSPACE (*params_list))
2014 param = params_list;
2015 while (*params_list && !ISSPACE (*params_list))
2017 if (param[0] != '-')
2018 temp_params[param_count++]
2019 = dupnstr (param, (size_t) (params_list - param));
2028 break; /* Don't copy these. */
2030 while (ISSPACE (*params_list))
2032 while (*params_list && !ISSPACE (*params_list))
2036 temp_params[param_count++]
2037 = dupnstr (param, (size_t) (params_list - param));
2043 temp_params[param_count++] = "-aux-info";
2045 /* Leave room for the aux-info file name argument. */
2046 aux_info_file_name_index = param_count;
2047 temp_params[param_count++] = NULL;
2049 temp_params[param_count++] = "-S";
2050 temp_params[param_count++] = "-o";
2051 temp_params[param_count++] = "/dev/null";
2053 /* Leave room for the input file name argument. */
2054 input_file_name_index = param_count;
2055 temp_params[param_count++] = NULL;
2056 /* Terminate the list. */
2057 temp_params[param_count++] = NULL;
2059 /* Make a copy of the compile_params in heap space. */
2062 = (const char **) xmalloc (sizeof (char *) * (param_count+1));
2063 memcpy (compile_params, temp_params, sizeof (char *) * param_count);
2066 /* Do a recompilation for the express purpose of generating a new aux_info
2067 file to go with a specific base source file.
2069 The result is a boolean indicating success. */
2072 gen_aux_info_file (base_filename)
2073 const char *base_filename;
2075 if (!input_file_name_index)
2076 munge_compile_params ("");
2078 /* Store the full source file name in the argument vector. */
2079 compile_params[input_file_name_index] = shortpath (NULL, base_filename);
2080 /* Add .X to source file name to get aux-info file name. */
2081 compile_params[aux_info_file_name_index]
2082 = savestring2 (compile_params[input_file_name_index],
2083 strlen (compile_params[input_file_name_index]),
2088 fprintf (stderr, "%s: compiling `%s'\n",
2089 pname, compile_params[input_file_name_index]);
2092 char *errmsg_fmt, *errmsg_arg;
2093 int wait_status, pid;
2094 char *temp_base = choose_temp_base ();
2096 pid = pexecute (compile_params[0], (char * const *) compile_params,
2097 pname, temp_base, &errmsg_fmt, &errmsg_arg,
2098 PEXECUTE_FIRST | PEXECUTE_LAST | PEXECUTE_SEARCH);
2102 int errno_val = errno;
2103 fprintf (stderr, "%s: ", pname);
2104 fprintf (stderr, errmsg_fmt, errmsg_arg);
2105 fprintf (stderr, ": %s\n", my_strerror (errno_val));
2109 pid = pwait (pid, &wait_status, 0);
2112 fprintf (stderr, "%s: wait: %s\n", pname, my_strerror (errno));
2115 if (WIFSIGNALED (wait_status))
2117 fprintf (stderr, "%s: subprocess got fatal signal %d\n",
2118 pname, WTERMSIG (wait_status));
2121 if (WIFEXITED (wait_status))
2123 if (WEXITSTATUS (wait_status) != 0)
2125 fprintf (stderr, "%s: %s exited with status %d\n",
2126 pname, compile_params[0], WEXITSTATUS (wait_status));
2135 /* Read in all of the information contained in a single aux_info file.
2136 Save all of the important stuff for later. */
2139 process_aux_info_file (base_source_filename, keep_it, is_syscalls)
2140 const char *base_source_filename;
2144 size_t base_len = strlen (base_source_filename);
2145 char * aux_info_filename
2146 = (char *) alloca (base_len + strlen (aux_info_suffix) + 1);
2147 char *aux_info_base;
2148 char *aux_info_limit;
2149 char *aux_info_relocated_name;
2150 const char *aux_info_second_line;
2151 time_t aux_info_mtime;
2152 size_t aux_info_size;
2155 /* Construct the aux_info filename from the base source filename. */
2157 strcpy (aux_info_filename, base_source_filename);
2158 strcat (aux_info_filename, aux_info_suffix);
2160 /* Check that the aux_info file exists and is readable. If it does not
2161 exist, try to create it (once only). */
2163 /* If file doesn't exist, set must_create.
2164 Likewise if it exists and we can read it but it is obsolete.
2165 Otherwise, report an error. */
2168 /* Come here with must_create set to 1 if file is out of date. */
2171 if (my_access (aux_info_filename, R_OK) == -1)
2173 if (errno == ENOENT)
2177 fprintf (stderr, "%s: warning: missing SYSCALLS file `%s'\n",
2178 pname, aux_info_filename);
2185 int errno_val = errno;
2186 fprintf (stderr, "%s: can't read aux info file `%s': %s\n",
2187 pname, shortpath (NULL, aux_info_filename),
2188 my_strerror (errno_val));
2193 #if 0 /* There is code farther down to take care of this. */
2197 stat (aux_info_file_name, &s1);
2198 stat (base_source_file_name, &s2);
2199 if (s2.st_mtime > s1.st_mtime)
2204 /* If we need a .X file, create it, and verify we can read it. */
2207 if (!gen_aux_info_file (base_source_filename))
2212 if (my_access (aux_info_filename, R_OK) == -1)
2214 int errno_val = errno;
2215 fprintf (stderr, "%s: can't read aux info file `%s': %s\n",
2216 pname, shortpath (NULL, aux_info_filename),
2217 my_strerror (errno_val));
2224 struct stat stat_buf;
2226 /* Get some status information about this aux_info file. */
2228 if (my_stat (aux_info_filename, &stat_buf) == -1)
2230 int errno_val = errno;
2231 fprintf (stderr, "%s: can't get status of aux info file `%s': %s\n",
2232 pname, shortpath (NULL, aux_info_filename),
2233 my_strerror (errno_val));
2238 /* Check on whether or not this aux_info file is zero length. If it is,
2239 then just ignore it and return. */
2241 if ((aux_info_size = stat_buf.st_size) == 0)
2244 /* Get the date/time of last modification for this aux_info file and
2245 remember it. We will have to check that any source files that it
2246 contains information about are at least this old or older. */
2248 aux_info_mtime = stat_buf.st_mtime;
2252 /* Compare mod time with the .c file; update .X file if obsolete.
2253 The code later on can fail to check the .c file
2254 if it did not directly define any functions. */
2256 if (my_stat (base_source_filename, &stat_buf) == -1)
2258 int errno_val = errno;
2259 fprintf (stderr, "%s: can't get status of aux info file `%s': %s\n",
2260 pname, shortpath (NULL, base_source_filename),
2261 my_strerror (errno_val));
2265 if (stat_buf.st_mtime > aux_info_mtime)
2276 /* Open the aux_info file. */
2278 if ((aux_info_file = my_open (aux_info_filename, O_RDONLY, 0444 )) == -1)
2280 int errno_val = errno;
2281 fprintf (stderr, "%s: can't open aux info file `%s' for reading: %s\n",
2282 pname, shortpath (NULL, aux_info_filename),
2283 my_strerror (errno_val));
2287 /* Allocate space to hold the aux_info file in memory. */
2289 aux_info_base = xmalloc (aux_info_size + 1);
2290 aux_info_limit = aux_info_base + aux_info_size;
2291 *aux_info_limit = '\0';
2293 /* Read the aux_info file into memory. */
2295 if (safe_read (aux_info_file, aux_info_base, aux_info_size) != aux_info_size)
2297 int errno_val = errno;
2298 fprintf (stderr, "%s: error reading aux info file `%s': %s\n",
2299 pname, shortpath (NULL, aux_info_filename),
2300 my_strerror (errno_val));
2301 free (aux_info_base);
2302 close (aux_info_file);
2306 /* Close the aux info file. */
2308 if (close (aux_info_file))
2310 int errno_val = errno;
2311 fprintf (stderr, "%s: error closing aux info file `%s': %s\n",
2312 pname, shortpath (NULL, aux_info_filename),
2313 my_strerror (errno_val));
2314 free (aux_info_base);
2315 close (aux_info_file);
2320 /* Delete the aux_info file (unless requested not to). If the deletion
2321 fails for some reason, don't even worry about it. */
2323 if (must_create && !keep_it)
2324 if (my_unlink (aux_info_filename) == -1)
2326 int errno_val = errno;
2327 fprintf (stderr, "%s: can't delete aux info file `%s': %s\n",
2328 pname, shortpath (NULL, aux_info_filename),
2329 my_strerror (errno_val));
2332 /* Save a pointer into the first line of the aux_info file which
2333 contains the filename of the directory from which the compiler
2334 was invoked when the associated source file was compiled.
2335 This information is used later to help create complete
2336 filenames out of the (potentially) relative filenames in
2337 the aux_info file. */
2340 char *p = aux_info_base;
2347 invocation_filename = p; /* Save a pointer to first byte of path. */
2352 while (*p++ != '\n')
2354 aux_info_second_line = p;
2355 aux_info_relocated_name = 0;
2356 if (invocation_filename[0] != '/')
2358 /* INVOCATION_FILENAME is relative;
2359 append it to BASE_SOURCE_FILENAME's dir. */
2361 aux_info_relocated_name = xmalloc (base_len + (p-invocation_filename));
2362 strcpy (aux_info_relocated_name, base_source_filename);
2363 dir_end = strrchr (aux_info_relocated_name, '/');
2367 dir_end = aux_info_relocated_name;
2368 strcpy (dir_end, invocation_filename);
2369 invocation_filename = aux_info_relocated_name;
2375 const char *aux_info_p;
2377 /* Do a pre-pass on the lines in the aux_info file, making sure that all
2378 of the source files referenced in there are at least as old as this
2379 aux_info file itself. If not, go back and regenerate the aux_info
2380 file anew. Don't do any of this for the syscalls file. */
2384 current_aux_info_lineno = 2;
2386 for (aux_info_p = aux_info_second_line; *aux_info_p; )
2388 if (referenced_file_is_newer (aux_info_p, aux_info_mtime))
2390 free (aux_info_base);
2391 xfree (aux_info_relocated_name);
2392 if (keep_it && my_unlink (aux_info_filename) == -1)
2394 int errno_val = errno;
2395 fprintf (stderr, "%s: can't delete file `%s': %s\n",
2396 pname, shortpath (NULL, aux_info_filename),
2397 my_strerror (errno_val));
2404 /* Skip over the rest of this line to start of next line. */
2406 while (*aux_info_p != '\n')
2409 current_aux_info_lineno++;
2413 /* Now do the real pass on the aux_info lines. Save their information in
2414 the in-core data base. */
2416 current_aux_info_lineno = 2;
2418 for (aux_info_p = aux_info_second_line; *aux_info_p;)
2420 char *unexpanded_line = unexpand_if_needed (aux_info_p);
2422 if (unexpanded_line)
2424 save_def_or_dec (unexpanded_line, is_syscalls);
2425 free (unexpanded_line);
2428 save_def_or_dec (aux_info_p, is_syscalls);
2430 /* Skip over the rest of this line and get to start of next line. */
2432 while (*aux_info_p != '\n')
2435 current_aux_info_lineno++;
2439 free (aux_info_base);
2440 xfree (aux_info_relocated_name);
2445 /* Check an individual filename for a .c suffix. If the filename has this
2446 suffix, rename the file such that its suffix is changed to .C. This
2447 function implements the -C option. */
2451 const hash_table_entry *hp;
2453 const char *filename = hp->symbol;
2454 int last_char_index = strlen (filename) - 1;
2455 char *const new_filename = (char *) alloca (strlen (filename) + 1);
2457 /* Note that we don't care here if the given file was converted or not. It
2458 is possible that the given file was *not* converted, simply because there
2459 was nothing in it which actually required conversion. Even in this case,
2460 we want to do the renaming. Note that we only rename files with the .c
2463 if (filename[last_char_index] != 'c' || filename[last_char_index-1] != '.')
2466 strcpy (new_filename, filename);
2467 new_filename[last_char_index] = 'C';
2469 if (my_link (filename, new_filename) == -1)
2471 int errno_val = errno;
2472 fprintf (stderr, "%s: warning: can't link file `%s' to `%s': %s\n",
2473 pname, shortpath (NULL, filename),
2474 shortpath (NULL, new_filename), my_strerror (errno_val));
2479 if (my_unlink (filename) == -1)
2481 int errno_val = errno;
2482 fprintf (stderr, "%s: warning: can't delete file `%s': %s\n",
2483 pname, shortpath (NULL, filename), my_strerror (errno_val));
2489 #endif /* !defined (UNPROTOIZE) */
2491 /* Take the list of definitions and declarations attached to a particular
2492 file_info node and reverse the order of the list. This should get the
2493 list into an order such that the item with the lowest associated line
2494 number is nearest the head of the list. When these lists are originally
2495 built, they are in the opposite order. We want to traverse them in
2496 normal line number order later (i.e. lowest to highest) so reverse the
2500 reverse_def_dec_list (hp)
2501 const hash_table_entry *hp;
2503 file_info *file_p = hp->fip;
2504 def_dec_info *prev = NULL;
2505 def_dec_info *current = (def_dec_info *)file_p->defs_decs;
2508 return; /* no list to reverse */
2511 if (! (current = (def_dec_info *)current->next_in_file))
2512 return; /* can't reverse a single list element */
2514 prev->next_in_file = NULL;
2518 def_dec_info *next = (def_dec_info *)current->next_in_file;
2520 current->next_in_file = prev;
2525 file_p->defs_decs = prev;
2530 /* Find the (only?) extern definition for a particular function name, starting
2531 from the head of the linked list of entries for the given name. If we
2532 cannot find an extern definition for the given function name, issue a
2533 warning and scrounge around for the next best thing, i.e. an extern
2534 function declaration with a prototype attached to it. Note that we only
2535 allow such substitutions for extern declarations and never for static
2536 declarations. That's because the only reason we allow them at all is
2537 to let un-prototyped function declarations for system-supplied library
2538 functions get their prototypes from our own extra SYSCALLS.c.X file which
2539 contains all of the correct prototypes for system functions. */
2541 static const def_dec_info *
2542 find_extern_def (head, user)
2543 const def_dec_info *head;
2544 const def_dec_info *user;
2546 const def_dec_info *dd_p;
2547 const def_dec_info *extern_def_p = NULL;
2548 int conflict_noted = 0;
2550 /* Don't act too stupid here. Somebody may try to convert an entire system
2551 in one swell fwoop (rather than one program at a time, as should be done)
2552 and in that case, we may find that there are multiple extern definitions
2553 of a given function name in the entire set of source files that we are
2554 converting. If however one of these definitions resides in exactly the
2555 same source file as the reference we are trying to satisfy then in that
2556 case it would be stupid for us to fail to realize that this one definition
2557 *must* be the precise one we are looking for.
2559 To make sure that we don't miss an opportunity to make this "same file"
2560 leap of faith, we do a prescan of the list of records relating to the
2561 given function name, and we look (on this first scan) *only* for a
2562 definition of the function which is in the same file as the reference
2563 we are currently trying to satisfy. */
2565 for (dd_p = head; dd_p; dd_p = dd_p->next_for_func)
2566 if (dd_p->is_func_def && !dd_p->is_static && dd_p->file == user->file)
2569 /* Now, since we have not found a definition in the same file as the
2570 reference, we scan the list again and consider all possibilities from
2571 all files. Here we may get conflicts with the things listed in the
2572 SYSCALLS.c.X file, but if that happens it only means that the source
2573 code being converted contains its own definition of a function which
2574 could have been supplied by libc.a. In such cases, we should avoid
2575 issuing the normal warning, and defer to the definition given in the
2578 for (dd_p = head; dd_p; dd_p = dd_p->next_for_func)
2579 if (dd_p->is_func_def && !dd_p->is_static)
2581 if (!extern_def_p) /* Previous definition? */
2582 extern_def_p = dd_p; /* Remember the first definition found. */
2585 /* Ignore definition just found if it came from SYSCALLS.c.X. */
2587 if (is_syscalls_file (dd_p->file))
2590 /* Quietly replace the definition previously found with the one
2591 just found if the previous one was from SYSCALLS.c.X. */
2593 if (is_syscalls_file (extern_def_p->file))
2595 extern_def_p = dd_p;
2599 /* If we get here, then there is a conflict between two function
2600 declarations for the same function, both of which came from the
2603 if (!conflict_noted) /* first time we noticed? */
2606 fprintf (stderr, "%s: conflicting extern definitions of '%s'\n",
2607 pname, head->hash_entry->symbol);
2610 fprintf (stderr, "%s: declarations of '%s' will not be converted\n",
2611 pname, head->hash_entry->symbol);
2612 fprintf (stderr, "%s: conflict list for '%s' follows:\n",
2613 pname, head->hash_entry->symbol);
2614 fprintf (stderr, "%s: %s(%d): %s\n",
2616 shortpath (NULL, extern_def_p->file->hash_entry->symbol),
2617 extern_def_p->line, extern_def_p->ansi_decl);
2621 fprintf (stderr, "%s: %s(%d): %s\n",
2623 shortpath (NULL, dd_p->file->hash_entry->symbol),
2624 dd_p->line, dd_p->ansi_decl);
2628 /* We want to err on the side of caution, so if we found multiple conflicting
2629 definitions for the same function, treat this as being that same as if we
2630 had found no definitions (i.e. return NULL). */
2637 /* We have no definitions for this function so do the next best thing.
2638 Search for an extern declaration already in prototype form. */
2640 for (dd_p = head; dd_p; dd_p = dd_p->next_for_func)
2641 if (!dd_p->is_func_def && !dd_p->is_static && dd_p->prototyped)
2643 extern_def_p = dd_p; /* save a pointer to the definition */
2645 fprintf (stderr, "%s: warning: using formals list from %s(%d) for function `%s'\n",
2647 shortpath (NULL, dd_p->file->hash_entry->symbol),
2648 dd_p->line, dd_p->hash_entry->symbol);
2652 /* Gripe about unprototyped function declarations that we found no
2653 corresponding definition (or other source of prototype information)
2656 Gripe even if the unprototyped declaration we are worried about
2657 exists in a file in one of the "system" include directories. We
2658 can gripe about these because we should have at least found a
2659 corresponding (pseudo) definition in the SYSCALLS.c.X file. If we
2660 didn't, then that means that the SYSCALLS.c.X file is missing some
2661 needed prototypes for this particular system. That is worth telling
2666 const char *file = user->file->hash_entry->symbol;
2669 if (in_system_include_dir (file))
2671 /* Why copy this string into `needed' at all?
2672 Why not just use user->ansi_decl without copying? */
2673 char *needed = (char *) alloca (strlen (user->ansi_decl) + 1);
2676 strcpy (needed, user->ansi_decl);
2677 p = (NONCONST char *) substr (needed, user->hash_entry->symbol)
2678 + strlen (user->hash_entry->symbol) + 2;
2679 /* Avoid having ??? in the string. */
2685 fprintf (stderr, "%s: %d: `%s' used but missing from SYSCALLS\n",
2686 shortpath (NULL, file), user->line,
2687 needed+7); /* Don't print "extern " */
2691 fprintf (stderr, "%s: %d: warning: no extern definition for `%s'\n",
2692 shortpath (NULL, file), user->line,
2693 user->hash_entry->symbol);
2697 return extern_def_p;
2700 /* Find the (only?) static definition for a particular function name in a
2701 given file. Here we get the function-name and the file info indirectly
2702 from the def_dec_info record pointer which is passed in. */
2704 static const def_dec_info *
2705 find_static_definition (user)
2706 const def_dec_info *user;
2708 const def_dec_info *head = user->hash_entry->ddip;
2709 const def_dec_info *dd_p;
2710 int num_static_defs = 0;
2711 const def_dec_info *static_def_p = NULL;
2713 for (dd_p = head; dd_p; dd_p = dd_p->next_for_func)
2714 if (dd_p->is_func_def && dd_p->is_static && (dd_p->file == user->file))
2716 static_def_p = dd_p; /* save a pointer to the definition */
2719 if (num_static_defs == 0)
2722 fprintf (stderr, "%s: warning: no static definition for `%s' in file `%s'\n",
2723 pname, head->hash_entry->symbol,
2724 shortpath (NULL, user->file->hash_entry->symbol));
2726 else if (num_static_defs > 1)
2728 fprintf (stderr, "%s: multiple static defs of `%s' in file `%s'\n",
2729 pname, head->hash_entry->symbol,
2730 shortpath (NULL, user->file->hash_entry->symbol));
2733 return static_def_p;
2736 /* Find good prototype style formal argument lists for all of the function
2737 declarations which didn't have them before now.
2739 To do this we consider each function name one at a time. For each function
2740 name, we look at the items on the linked list of def_dec_info records for
2741 that particular name.
2743 Somewhere on this list we should find one (and only one) def_dec_info
2744 record which represents the actual function definition, and this record
2745 should have a nice formal argument list already associated with it.
2747 Thus, all we have to do is to connect up all of the other def_dec_info
2748 records for this particular function name to the special one which has
2749 the full-blown formals list.
2751 Of course it is a little more complicated than just that. See below for
2755 connect_defs_and_decs (hp)
2756 const hash_table_entry *hp;
2758 const def_dec_info *dd_p;
2759 const def_dec_info *extern_def_p = NULL;
2760 int first_extern_reference = 1;
2762 /* Traverse the list of definitions and declarations for this particular
2763 function name. For each item on the list, if it is a function
2764 definition (either old style or new style) then GCC has already been
2765 kind enough to produce a prototype for us, and it is associated with
2766 the item already, so declare the item as its own associated "definition".
2768 Also, for each item which is only a function declaration, but which
2769 nonetheless has its own prototype already (obviously supplied by the user)
2770 declare the item as its own definition.
2772 Note that when/if there are multiple user-supplied prototypes already
2773 present for multiple declarations of any given function, these multiple
2774 prototypes *should* all match exactly with one another and with the
2775 prototype for the actual function definition. We don't check for this
2776 here however, since we assume that the compiler must have already done
2777 this consistency checking when it was creating the .X files. */
2779 for (dd_p = hp->ddip; dd_p; dd_p = dd_p->next_for_func)
2780 if (dd_p->prototyped)
2781 ((NONCONST def_dec_info *) dd_p)->definition = dd_p;
2783 /* Traverse the list of definitions and declarations for this particular
2784 function name. For each item on the list, if it is an extern function
2785 declaration and if it has no associated definition yet, go try to find
2786 the matching extern definition for the declaration.
2788 When looking for the matching function definition, warn the user if we
2791 If we find more that one function definition also issue a warning.
2793 Do the search for the matching definition only once per unique function
2794 name (and only when absolutely needed) so that we can avoid putting out
2795 redundant warning messages, and so that we will only put out warning
2796 messages when there is actually a reference (i.e. a declaration) for
2797 which we need to find a matching definition. */
2799 for (dd_p = hp->ddip; dd_p; dd_p = dd_p->next_for_func)
2800 if (!dd_p->is_func_def && !dd_p->is_static && !dd_p->definition)
2802 if (first_extern_reference)
2804 extern_def_p = find_extern_def (hp->ddip, dd_p);
2805 first_extern_reference = 0;
2807 ((NONCONST def_dec_info *) dd_p)->definition = extern_def_p;
2810 /* Traverse the list of definitions and declarations for this particular
2811 function name. For each item on the list, if it is a static function
2812 declaration and if it has no associated definition yet, go try to find
2813 the matching static definition for the declaration within the same file.
2815 When looking for the matching function definition, warn the user if we
2816 fail to find one in the same file with the declaration, and refuse to
2817 convert this kind of cross-file static function declaration. After all,
2818 this is stupid practice and should be discouraged.
2820 We don't have to worry about the possibility that there is more than one
2821 matching function definition in the given file because that would have
2822 been flagged as an error by the compiler.
2824 Do the search for the matching definition only once per unique
2825 function-name/source-file pair (and only when absolutely needed) so that
2826 we can avoid putting out redundant warning messages, and so that we will
2827 only put out warning messages when there is actually a reference (i.e. a
2828 declaration) for which we actually need to find a matching definition. */
2830 for (dd_p = hp->ddip; dd_p; dd_p = dd_p->next_for_func)
2831 if (!dd_p->is_func_def && dd_p->is_static && !dd_p->definition)
2833 const def_dec_info *dd_p2;
2834 const def_dec_info *static_def;
2836 /* We have now found a single static declaration for which we need to
2837 find a matching definition. We want to minimize the work (and the
2838 number of warnings), so we will find an appropriate (matching)
2839 static definition for this declaration, and then distribute it
2840 (as the definition for) any and all other static declarations
2841 for this function name which occur within the same file, and which
2842 do not already have definitions.
2844 Note that a trick is used here to prevent subsequent attempts to
2845 call find_static_definition for a given function-name & file
2846 if the first such call returns NULL. Essentially, we convert
2847 these NULL return values to -1, and put the -1 into the definition
2848 field for each other static declaration from the same file which
2849 does not already have an associated definition.
2850 This makes these other static declarations look like they are
2851 actually defined already when the outer loop here revisits them
2852 later on. Thus, the outer loop will skip over them. Later, we
2853 turn the -1's back to NULL's. */
2855 ((NONCONST def_dec_info *) dd_p)->definition =
2856 (static_def = find_static_definition (dd_p))
2858 : (const def_dec_info *) -1;
2860 for (dd_p2 = dd_p->next_for_func; dd_p2; dd_p2 = dd_p2->next_for_func)
2861 if (!dd_p2->is_func_def && dd_p2->is_static
2862 && !dd_p2->definition && (dd_p2->file == dd_p->file))
2863 ((NONCONST def_dec_info *)dd_p2)->definition = dd_p->definition;
2866 /* Convert any dummy (-1) definitions we created in the step above back to
2867 NULL's (as they should be). */
2869 for (dd_p = hp->ddip; dd_p; dd_p = dd_p->next_for_func)
2870 if (dd_p->definition == (def_dec_info *) -1)
2871 ((NONCONST def_dec_info *) dd_p)->definition = NULL;
2874 #endif /* !defined (UNPROTOIZE) */
2876 /* Give a pointer into the clean text buffer, return a number which is the
2877 original source line number that the given pointer points into. */
2880 identify_lineno (clean_p)
2881 const char *clean_p;
2886 for (scan_p = clean_text_base; scan_p <= clean_p; scan_p++)
2887 if (*scan_p == '\n')
2892 /* Issue an error message and give up on doing this particular edit. */
2895 declare_source_confusing (clean_p)
2896 const char *clean_p;
2901 fprintf (stderr, "%s: %d: warning: source too confusing\n",
2902 shortpath (NULL, convert_filename), last_known_line_number);
2904 fprintf (stderr, "%s: %d: warning: source too confusing\n",
2905 shortpath (NULL, convert_filename),
2906 identify_lineno (clean_p));
2908 longjmp (source_confusion_recovery, 1);
2911 /* Check that a condition which is expected to be true in the original source
2912 code is in fact true. If not, issue an error message and give up on
2913 converting this particular source file. */
2916 check_source (cond, clean_p)
2918 const char *clean_p;
2921 declare_source_confusing (clean_p);
2924 /* If we think of the in-core cleaned text buffer as a memory mapped
2925 file (with the variable last_known_line_start acting as sort of a
2926 file pointer) then we can imagine doing "seeks" on the buffer. The
2927 following routine implements a kind of "seek" operation for the in-core
2928 (cleaned) copy of the source file. When finished, it returns a pointer to
2929 the start of a given (numbered) line in the cleaned text buffer.
2931 Note that protoize only has to "seek" in the forward direction on the
2932 in-core cleaned text file buffers, and it never needs to back up.
2934 This routine is made a little bit faster by remembering the line number
2935 (and pointer value) supplied (and returned) from the previous "seek".
2936 This prevents us from always having to start all over back at the top
2937 of the in-core cleaned buffer again. */
2943 if (n < last_known_line_number)
2946 while (n > last_known_line_number)
2948 while (*last_known_line_start != '\n')
2949 check_source (++last_known_line_start < clean_text_limit, 0);
2950 last_known_line_start++;
2951 last_known_line_number++;
2953 return last_known_line_start;
2956 /* Given a pointer to a character in the cleaned text buffer, return a pointer
2957 to the next non-whitespace character which follows it. */
2960 forward_to_next_token_char (ptr)
2963 for (++ptr; ISSPACE (*ptr); check_source (++ptr < clean_text_limit, 0))
2968 /* Copy a chunk of text of length `len' and starting at `str' to the current
2969 output buffer. Note that all attempts to add stuff to the current output
2970 buffer ultimately go through here. */
2973 output_bytes (str, len)
2977 if ((repl_write_ptr + 1) + len >= repl_text_limit)
2979 size_t new_size = (repl_text_limit - repl_text_base) << 1;
2980 char *new_buf = (char *) xrealloc (repl_text_base, new_size);
2982 repl_write_ptr = new_buf + (repl_write_ptr - repl_text_base);
2983 repl_text_base = new_buf;
2984 repl_text_limit = new_buf + new_size;
2986 memcpy (repl_write_ptr + 1, str, len);
2987 repl_write_ptr += len;
2990 /* Copy all bytes (except the trailing null) of a null terminated string to
2991 the current output buffer. */
2997 output_bytes (str, strlen (str));
3000 /* Copy some characters from the original text buffer to the current output
3003 This routine takes a pointer argument `p' which is assumed to be a pointer
3004 into the cleaned text buffer. The bytes which are copied are the `original'
3005 equivalents for the set of bytes between the last value of `clean_read_ptr'
3006 and the argument value `p'.
3008 The set of bytes copied however, comes *not* from the cleaned text buffer,
3009 but rather from the direct counterparts of these bytes within the original
3012 Thus, when this function is called, some bytes from the original text
3013 buffer (which may include original comments and preprocessing directives)
3014 will be copied into the output buffer.
3016 Note that the request implied when this routine is called includes the
3017 byte pointed to by the argument pointer `p'. */
3023 size_t copy_length = (size_t) (p - clean_read_ptr);
3024 const char *copy_start = orig_text_base+(clean_read_ptr-clean_text_base)+1;
3026 if (copy_length == 0)
3029 output_bytes (copy_start, copy_length);
3033 /* Given a pointer to a def_dec_info record which represents some form of
3034 definition of a function (perhaps a real definition, or in lieu of that
3035 perhaps just a declaration with a full prototype) return true if this
3036 function is one which we should avoid converting. Return false
3040 other_variable_style_function (ansi_header)
3041 const char *ansi_header;
3045 /* See if we have a stdarg function, or a function which has stdarg style
3046 parameters or a stdarg style return type. */
3048 return substr (ansi_header, "...") != 0;
3050 #else /* !defined (UNPROTOIZE) */
3052 /* See if we have a varargs function, or a function which has varargs style
3053 parameters or a varargs style return type. */
3056 int len = strlen (varargs_style_indicator);
3058 for (p = ansi_header; p; )
3060 const char *candidate;
3062 if ((candidate = substr (p, varargs_style_indicator)) == 0)
3065 if (!is_id_char (candidate[-1]) && !is_id_char (candidate[len]))
3071 #endif /* !defined (UNPROTOIZE) */
3074 /* Do the editing operation specifically for a function "declaration". Note
3075 that editing for function "definitions" are handled in a separate routine
3079 edit_fn_declaration (def_dec_p, clean_text_p)
3080 const def_dec_info *def_dec_p;
3081 const char *volatile clean_text_p;
3083 const char *start_formals;
3084 const char *end_formals;
3085 const char *function_to_edit = def_dec_p->hash_entry->symbol;
3086 size_t func_name_len = strlen (function_to_edit);
3087 const char *end_of_fn_name;
3091 const f_list_chain_item *this_f_list_chain_item;
3092 const def_dec_info *definition = def_dec_p->definition;
3094 /* If we are protoizing, and if we found no corresponding definition for
3095 this particular function declaration, then just leave this declaration
3096 exactly as it is. */
3101 /* If we are protoizing, and if the corresponding definition that we found
3102 for this particular function declaration defined an old style varargs
3103 function, then we want to issue a warning and just leave this function
3104 declaration unconverted. */
3106 if (other_variable_style_function (definition->ansi_decl))
3109 fprintf (stderr, "%s: %d: warning: varargs function declaration not converted\n",
3110 shortpath (NULL, def_dec_p->file->hash_entry->symbol),
3115 #endif /* !defined (UNPROTOIZE) */
3117 /* Setup here to recover from confusing source code detected during this
3118 particular "edit". */
3121 if (setjmp (source_confusion_recovery))
3123 restore_pointers ();
3124 fprintf (stderr, "%s: declaration of function `%s' not converted\n",
3125 pname, function_to_edit);
3129 /* We are editing a function declaration. The line number we did a seek to
3130 contains the comma or semicolon which follows the declaration. Our job
3131 now is to scan backwards looking for the function name. This name *must*
3132 be followed by open paren (ignoring whitespace, of course). We need to
3133 replace everything between that open paren and the corresponding closing
3134 paren. If we are protoizing, we need to insert the prototype-style
3135 formals lists. If we are unprotoizing, we need to just delete everything
3136 between the pairs of opening and closing parens. */
3138 /* First move up to the end of the line. */
3140 while (*clean_text_p != '\n')
3141 check_source (++clean_text_p < clean_text_limit, 0);
3142 clean_text_p--; /* Point to just before the newline character. */
3144 /* Now we can scan backwards for the function name. */
3150 /* Scan leftwards until we find some character which can be
3151 part of an identifier. */
3153 while (!is_id_char (*clean_text_p))
3154 check_source (--clean_text_p > clean_read_ptr, 0);
3156 /* Scan backwards until we find a char that cannot be part of an
3159 while (is_id_char (*clean_text_p))
3160 check_source (--clean_text_p > clean_read_ptr, 0);
3162 /* Having found an "id break", see if the following id is the one
3163 that we are looking for. If so, then exit from this loop. */
3165 if (!strncmp (clean_text_p+1, function_to_edit, func_name_len))
3167 char ch = *(clean_text_p + 1 + func_name_len);
3169 /* Must also check to see that the name in the source text
3170 ends where it should (in order to prevent bogus matches
3171 on similar but longer identifiers. */
3173 if (! is_id_char (ch))
3174 break; /* exit from loop */
3178 /* We have now found the first perfect match for the function name in
3179 our backward search. This may or may not be the actual function
3180 name at the start of the actual function declaration (i.e. we could
3181 have easily been mislead). We will try to avoid getting fooled too
3182 often by looking forward for the open paren which should follow the
3183 identifier we just found. We ignore whitespace while hunting. If
3184 the next non-whitespace byte we see is *not* an open left paren,
3185 then we must assume that we have been fooled and we start over
3186 again accordingly. Note that there is no guarantee, that even if
3187 we do see the open paren, that we are in the right place.
3188 Programmers do the strangest things sometimes! */
3190 end_of_fn_name = clean_text_p + strlen (def_dec_p->hash_entry->symbol);
3191 start_formals = forward_to_next_token_char (end_of_fn_name);
3193 while (*start_formals != '(');
3195 /* start_of_formals now points to the opening left paren which immediately
3196 follows the name of the function. */
3198 /* Note that there may be several formals lists which need to be modified
3199 due to the possibility that the return type of this function is a
3200 pointer-to-function type. If there are several formals lists, we
3201 convert them in left-to-right order here. */
3204 this_f_list_chain_item = definition->f_list_chain;
3205 #endif /* !defined (UNPROTOIZE) */
3212 end_formals = start_formals + 1;
3214 for (; depth; check_source (++end_formals < clean_text_limit, 0))
3216 switch (*end_formals)
3229 /* end_formals now points to the closing right paren of the formals
3230 list whose left paren is pointed to by start_formals. */
3232 /* Now, if we are protoizing, we insert the new ANSI-style formals list
3233 attached to the associated definition of this function. If however
3234 we are unprotoizing, then we simply delete any formals list which
3237 output_up_to (start_formals);
3239 if (this_f_list_chain_item)
3241 output_string (this_f_list_chain_item->formals_list);
3242 this_f_list_chain_item = this_f_list_chain_item->chain_next;
3247 fprintf (stderr, "%s: warning: too many parameter lists in declaration of `%s'\n",
3248 pname, def_dec_p->hash_entry->symbol);
3249 check_source (0, end_formals); /* leave the declaration intact */
3251 #endif /* !defined (UNPROTOIZE) */
3252 clean_read_ptr = end_formals - 1;
3254 /* Now see if it looks like there may be another formals list associated
3255 with the function declaration that we are converting (following the
3256 formals list that we just converted. */
3259 const char *another_r_paren = forward_to_next_token_char (end_formals);
3261 if ((*another_r_paren != ')')
3262 || (*(start_formals = forward_to_next_token_char (another_r_paren)) != '('))
3265 if (this_f_list_chain_item)
3268 fprintf (stderr, "\n%s: warning: too few parameter lists in declaration of `%s'\n",
3269 pname, def_dec_p->hash_entry->symbol);
3270 check_source (0, start_formals); /* leave the decl intact */
3272 #endif /* !defined (UNPROTOIZE) */
3278 /* There does appear to be yet another formals list, so loop around
3279 again, and convert it also. */
3283 /* Edit a whole group of formals lists, starting with the rightmost one
3284 from some set of formals lists. This routine is called once (from the
3285 outside) for each function declaration which is converted. It is
3286 recursive however, and it calls itself once for each remaining formal
3287 list that lies to the left of the one it was originally called to work
3288 on. Thus, a whole set gets done in right-to-left order.
3290 This routine returns non-zero if it thinks that it should not be trying
3291 to convert this particular function definition (because the name of the
3292 function doesn't match the one expected). */
3295 edit_formals_lists (end_formals, f_list_count, def_dec_p)
3296 const char *end_formals;
3297 unsigned int f_list_count;
3298 const def_dec_info *def_dec_p;
3300 const char *start_formals;
3303 start_formals = end_formals - 1;
3305 for (; depth; check_source (--start_formals > clean_read_ptr, 0))
3307 switch (*start_formals)
3319 /* start_formals now points to the opening left paren of the formals list. */
3325 const char *next_end;
3327 /* There should be more formal lists to the left of here. */
3329 next_end = start_formals - 1;
3330 check_source (next_end > clean_read_ptr, 0);
3331 while (ISSPACE (*next_end))
3332 check_source (--next_end > clean_read_ptr, 0);
3333 check_source (*next_end == ')', next_end);
3334 check_source (--next_end > clean_read_ptr, 0);
3335 check_source (*next_end == ')', next_end);
3336 if (edit_formals_lists (next_end, f_list_count, def_dec_p))
3340 /* Check that the function name in the header we are working on is the same
3341 as the one we would expect to find. If not, issue a warning and return
3344 if (f_list_count == 0)
3346 const char *expected = def_dec_p->hash_entry->symbol;
3347 const char *func_name_start;
3348 const char *func_name_limit;
3349 size_t func_name_len;
3351 for (func_name_limit = start_formals-1; ISSPACE (*func_name_limit); )
3352 check_source (--func_name_limit > clean_read_ptr, 0);
3354 for (func_name_start = func_name_limit++;
3355 is_id_char (*func_name_start);
3357 check_source (func_name_start > clean_read_ptr, 0);
3359 func_name_len = func_name_limit - func_name_start;
3360 if (func_name_len == 0)
3361 check_source (0, func_name_start);
3362 if (func_name_len != strlen (expected)
3363 || strncmp (func_name_start, expected, func_name_len))
3365 fprintf (stderr, "%s: %d: warning: found `%s' but expected `%s'\n",
3366 shortpath (NULL, def_dec_p->file->hash_entry->symbol),
3367 identify_lineno (func_name_start),
3368 dupnstr (func_name_start, func_name_len),
3374 output_up_to (start_formals);
3377 if (f_list_count == 0)
3378 output_string (def_dec_p->formal_names);
3379 #else /* !defined (UNPROTOIZE) */
3381 unsigned f_list_depth;
3382 const f_list_chain_item *flci_p = def_dec_p->f_list_chain;
3384 /* At this point, the current value of f_list count says how many
3385 links we have to follow through the f_list_chain to get to the
3386 particular formals list that we need to output next. */
3388 for (f_list_depth = 0; f_list_depth < f_list_count; f_list_depth++)
3389 flci_p = flci_p->chain_next;
3390 output_string (flci_p->formals_list);
3392 #endif /* !defined (UNPROTOIZE) */
3394 clean_read_ptr = end_formals - 1;
3398 /* Given a pointer to a byte in the clean text buffer which points to
3399 the beginning of a line that contains a "follower" token for a
3400 function definition header, do whatever is necessary to find the
3401 right closing paren for the rightmost formals list of the function
3402 definition header. */
3405 find_rightmost_formals_list (clean_text_p)
3406 const char *clean_text_p;
3408 const char *end_formals;
3410 /* We are editing a function definition. The line number we did a seek
3411 to contains the first token which immediately follows the entire set of
3412 formals lists which are part of this particular function definition
3415 Our job now is to scan leftwards in the clean text looking for the
3416 right-paren which is at the end of the function header's rightmost
3419 If we ignore whitespace, this right paren should be the first one we
3420 see which is (ignoring whitespace) immediately followed either by the
3421 open curly-brace beginning the function body or by an alphabetic
3422 character (in the case where the function definition is in old (K&R)
3423 style and there are some declarations of formal parameters). */
3425 /* It is possible that the right paren we are looking for is on the
3426 current line (together with its following token). Just in case that
3427 might be true, we start out here by skipping down to the right end of
3428 the current line before starting our scan. */
3430 for (end_formals = clean_text_p; *end_formals != '\n'; end_formals++)
3436 /* Now scan backwards while looking for the right end of the rightmost
3437 formals list associated with this function definition. */
3441 const char *l_brace_p;
3443 /* Look leftward and try to find a right-paren. */
3445 while (*end_formals != ')')
3447 if (ISSPACE (*end_formals))
3448 while (ISSPACE (*end_formals))
3449 check_source (--end_formals > clean_read_ptr, 0);
3451 check_source (--end_formals > clean_read_ptr, 0);
3454 ch = *(l_brace_p = forward_to_next_token_char (end_formals));
3455 /* Since we are unprotoizing an ANSI-style (prototyped) function
3456 definition, there had better not be anything (except whitespace)
3457 between the end of the ANSI formals list and the beginning of the
3458 function body (i.e. the '{'). */
3460 check_source (ch == '{', l_brace_p);
3463 #else /* !defined (UNPROTOIZE) */
3465 /* Now scan backwards while looking for the right end of the rightmost
3466 formals list associated with this function definition. */
3471 const char *l_brace_p;
3473 /* Look leftward and try to find a right-paren. */
3475 while (*end_formals != ')')
3477 if (ISSPACE (*end_formals))
3478 while (ISSPACE (*end_formals))
3479 check_source (--end_formals > clean_read_ptr, 0);
3481 check_source (--end_formals > clean_read_ptr, 0);
3484 ch = *(l_brace_p = forward_to_next_token_char (end_formals));
3486 /* Since it is possible that we found a right paren before the starting
3487 '{' of the body which IS NOT the one at the end of the real K&R
3488 formals list (say for instance, we found one embedded inside one of
3489 the old K&R formal parameter declarations) we have to check to be
3490 sure that this is in fact the right paren that we were looking for.
3492 The one we were looking for *must* be followed by either a '{' or
3493 by an alphabetic character, while others *cannot* validly be followed
3494 by such characters. */
3496 if ((ch == '{') || ISALPHA (ch))
3499 /* At this point, we have found a right paren, but we know that it is
3500 not the one we were looking for, so backup one character and keep
3503 check_source (--end_formals > clean_read_ptr, 0);
3506 #endif /* !defined (UNPROTOIZE) */
3513 /* Insert into the output file a totally new declaration for a function
3514 which (up until now) was being called from within the current block
3515 without having been declared at any point such that the declaration
3516 was visible (i.e. in scope) at the point of the call.
3518 We need to add in explicit declarations for all such function calls
3519 in order to get the full benefit of prototype-based function call
3520 parameter type checking. */
3523 add_local_decl (def_dec_p, clean_text_p)
3524 const def_dec_info *def_dec_p;
3525 const char *clean_text_p;
3527 const char *start_of_block;
3528 const char *function_to_edit = def_dec_p->hash_entry->symbol;
3530 /* Don't insert new local explicit declarations unless explicitly requested
3536 /* Setup here to recover from confusing source code detected during this
3537 particular "edit". */
3540 if (setjmp (source_confusion_recovery))
3542 restore_pointers ();
3543 fprintf (stderr, "%s: local declaration for function `%s' not inserted\n",
3544 pname, function_to_edit);
3548 /* We have already done a seek to the start of the line which should
3549 contain *the* open curly brace which begins the block in which we need
3550 to insert an explicit function declaration (to replace the implicit one).
3552 Now we scan that line, starting from the left, until we find the
3553 open curly brace we are looking for. Note that there may actually be
3554 multiple open curly braces on the given line, but we will be happy
3555 with the leftmost one no matter what. */
3557 start_of_block = clean_text_p;
3558 while (*start_of_block != '{' && *start_of_block != '\n')
3559 check_source (++start_of_block < clean_text_limit, 0);
3561 /* Note that the line from the original source could possibly
3562 contain *no* open curly braces! This happens if the line contains
3563 a macro call which expands into a chunk of text which includes a
3564 block (and that block's associated open and close curly braces).
3565 In cases like this, we give up, issue a warning, and do nothing. */
3567 if (*start_of_block != '{')
3571 "\n%s: %d: warning: can't add declaration of `%s' into macro call\n",
3572 def_dec_p->file->hash_entry->symbol, def_dec_p->line,
3573 def_dec_p->hash_entry->symbol);
3577 /* Figure out what a nice (pretty) indentation would be for the new
3578 declaration we are adding. In order to do this, we must scan forward
3579 from the '{' until we find the first line which starts with some
3580 non-whitespace characters (i.e. real "token" material). */
3583 const char *ep = forward_to_next_token_char (start_of_block) - 1;
3586 /* Now we have ep pointing at the rightmost byte of some existing indent
3587 stuff. At least that is the hope.
3589 We can now just scan backwards and find the left end of the existing
3590 indentation string, and then copy it to the output buffer. */
3592 for (sp = ep; ISSPACE (*sp) && *sp != '\n'; sp--)
3595 /* Now write out the open { which began this block, and any following
3596 trash up to and including the last byte of the existing indent that
3601 /* Now we go ahead and insert the new declaration at this point.
3603 If the definition of the given function is in the same file that we
3604 are currently editing, and if its full ANSI declaration normally
3605 would start with the keyword `extern', suppress the `extern'. */
3608 const char *decl = def_dec_p->definition->ansi_decl;
3610 if ((*decl == 'e') && (def_dec_p->file == def_dec_p->definition->file))
3612 output_string (decl);
3615 /* Finally, write out a new indent string, just like the preceding one
3616 that we found. This will typically include a newline as the first
3617 character of the indent string. */
3619 output_bytes (sp, (size_t) (ep - sp) + 1);
3623 /* Given a pointer to a file_info record, and a pointer to the beginning
3624 of a line (in the clean text buffer) which is assumed to contain the
3625 first "follower" token for the first function definition header in the
3626 given file, find a good place to insert some new global function
3627 declarations (which will replace scattered and imprecise implicit ones)
3628 and then insert the new explicit declaration at that point in the file. */
3631 add_global_decls (file_p, clean_text_p)
3632 const file_info *file_p;
3633 const char *clean_text_p;
3635 const def_dec_info *dd_p;
3638 /* Setup here to recover from confusing source code detected during this
3639 particular "edit". */
3642 if (setjmp (source_confusion_recovery))
3644 restore_pointers ();
3645 fprintf (stderr, "%s: global declarations for file `%s' not inserted\n",
3646 pname, shortpath (NULL, file_p->hash_entry->symbol));
3650 /* Start by finding a good location for adding the new explicit function
3651 declarations. To do this, we scan backwards, ignoring whitespace
3652 and comments and other junk until we find either a semicolon, or until
3653 we hit the beginning of the file. */
3655 scan_p = find_rightmost_formals_list (clean_text_p);
3658 if (scan_p < clean_text_base)
3660 check_source (scan_p > clean_read_ptr, 0);
3665 /* scan_p now points either to a semicolon, or to just before the start
3666 of the whole file. */
3668 /* Now scan forward for the first non-whitespace character. In theory,
3669 this should be the first character of the following function definition
3670 header. We will put in the added declarations just prior to that. */
3673 while (ISSPACE (*scan_p))
3677 output_up_to (scan_p);
3679 /* Now write out full prototypes for all of the things that had been
3680 implicitly declared in this file (but only those for which we were
3681 actually able to find unique matching definitions). Avoid duplicates
3682 by marking things that we write out as we go. */
3685 int some_decls_added = 0;
3687 for (dd_p = file_p->defs_decs; dd_p; dd_p = dd_p->next_in_file)
3688 if (dd_p->is_implicit && dd_p->definition && !dd_p->definition->written)
3690 const char *decl = dd_p->definition->ansi_decl;
3692 /* If the function for which we are inserting a declaration is
3693 actually defined later in the same file, then suppress the
3694 leading `extern' keyword (if there is one). */
3696 if (*decl == 'e' && (dd_p->file == dd_p->definition->file))
3699 output_string ("\n");
3700 output_string (decl);
3701 some_decls_added = 1;
3702 ((NONCONST def_dec_info *) dd_p->definition)->written = 1;
3704 if (some_decls_added)
3705 output_string ("\n\n");
3708 /* Unmark all of the definitions that we just marked. */
3710 for (dd_p = file_p->defs_decs; dd_p; dd_p = dd_p->next_in_file)
3711 if (dd_p->definition)
3712 ((NONCONST def_dec_info *) dd_p->definition)->written = 0;
3715 #endif /* !defined (UNPROTOIZE) */
3717 /* Do the editing operation specifically for a function "definition". Note
3718 that editing operations for function "declarations" are handled by a
3719 separate routine above. */
3722 edit_fn_definition (def_dec_p, clean_text_p)
3723 const def_dec_info *def_dec_p;
3724 const char *clean_text_p;
3726 const char *end_formals;
3727 const char *function_to_edit = def_dec_p->hash_entry->symbol;
3729 /* Setup here to recover from confusing source code detected during this
3730 particular "edit". */
3733 if (setjmp (source_confusion_recovery))
3735 restore_pointers ();
3736 fprintf (stderr, "%s: definition of function `%s' not converted\n",
3737 pname, function_to_edit);
3741 end_formals = find_rightmost_formals_list (clean_text_p);
3743 /* end_of_formals now points to the closing right paren of the rightmost
3744 formals list which is actually part of the `header' of the function
3745 definition that we are converting. */
3747 /* If the header of this function definition looks like it declares a
3748 function with a variable number of arguments, and if the way it does
3749 that is different from that way we would like it (i.e. varargs vs.
3750 stdarg) then issue a warning and leave the header unconverted. */
3752 if (other_variable_style_function (def_dec_p->ansi_decl))
3755 fprintf (stderr, "%s: %d: warning: definition of %s not converted\n",
3756 shortpath (NULL, def_dec_p->file->hash_entry->symbol),
3757 identify_lineno (end_formals),
3759 output_up_to (end_formals);
3763 if (edit_formals_lists (end_formals, def_dec_p->f_list_count, def_dec_p))
3765 restore_pointers ();
3766 fprintf (stderr, "%s: definition of function `%s' not converted\n",
3767 pname, function_to_edit);
3771 /* Have to output the last right paren because this never gets flushed by
3772 edit_formals_list. */
3774 output_up_to (end_formals);
3779 const char *semicolon_p;
3780 const char *limit_p;
3782 int had_newlines = 0;
3784 /* Now write out the K&R style formal declarations, one per line. */
3786 decl_p = def_dec_p->formal_decls;
3787 limit_p = decl_p + strlen (decl_p);
3788 for (;decl_p < limit_p; decl_p = semicolon_p + 2)
3790 for (semicolon_p = decl_p; *semicolon_p != ';'; semicolon_p++)
3792 output_string ("\n");
3793 output_string (indent_string);
3794 output_bytes (decl_p, (size_t) ((semicolon_p + 1) - decl_p));
3797 /* If there are no newlines between the end of the formals list and the
3798 start of the body, we should insert one now. */
3800 for (scan_p = end_formals+1; *scan_p != '{'; )
3802 if (*scan_p == '\n')
3807 check_source (++scan_p < clean_text_limit, 0);
3810 output_string ("\n");
3812 #else /* !defined (UNPROTOIZE) */
3813 /* If we are protoizing, there may be some flotsam & jetsam (like comments
3814 and preprocessing directives) after the old formals list but before
3815 the following { and we would like to preserve that stuff while effectively
3816 deleting the existing K&R formal parameter declarations. We do so here
3817 in a rather tricky way. Basically, we white out any stuff *except*
3818 the comments/pp-directives in the original text buffer, then, if there
3819 is anything in this area *other* than whitespace, we output it. */
3821 const char *end_formals_orig;
3822 const char *start_body;
3823 const char *start_body_orig;
3825 const char *scan_orig;
3826 int have_flotsam = 0;
3827 int have_newlines = 0;
3829 for (start_body = end_formals + 1; *start_body != '{';)
3830 check_source (++start_body < clean_text_limit, 0);
3832 end_formals_orig = orig_text_base + (end_formals - clean_text_base);
3833 start_body_orig = orig_text_base + (start_body - clean_text_base);
3834 scan = end_formals + 1;
3835 scan_orig = end_formals_orig + 1;
3836 for (; scan < start_body; scan++, scan_orig++)
3838 if (*scan == *scan_orig)
3840 have_newlines |= (*scan_orig == '\n');
3841 /* Leave identical whitespace alone. */
3842 if (!ISSPACE (*scan_orig))
3843 *((NONCONST char *)scan_orig) = ' '; /* identical - so whiteout */
3849 output_bytes (end_formals_orig + 1,
3850 (size_t) (start_body_orig - end_formals_orig) - 1);
3853 output_string ("\n");
3855 output_string (" ");
3856 clean_read_ptr = start_body - 1;
3858 #endif /* !defined (UNPROTOIZE) */
3861 /* Clean up the clean text buffer. Do this by converting comments and
3862 preprocessing directives into spaces. Also convert line continuations
3863 into whitespace. Also, whiteout string and character literals. */
3866 do_cleaning (new_clean_text_base, new_clean_text_limit)
3867 char *new_clean_text_base;
3868 char *new_clean_text_limit;
3871 int non_whitespace_since_newline = 0;
3873 for (scan_p = new_clean_text_base; scan_p < new_clean_text_limit; scan_p++)
3877 case '/': /* Handle comments. */
3878 if (scan_p[1] != '*')
3880 non_whitespace_since_newline = 1;
3884 while (scan_p[1] != '/' || scan_p[0] != '*')
3886 if (!ISSPACE (*scan_p))
3888 if (++scan_p >= new_clean_text_limit)
3895 case '#': /* Handle pp directives. */
3896 if (non_whitespace_since_newline)
3899 while (scan_p[1] != '\n' || scan_p[0] == '\\')
3901 if (!ISSPACE (*scan_p))
3903 if (++scan_p >= new_clean_text_limit)
3909 case '\'': /* Handle character literals. */
3910 non_whitespace_since_newline = 1;
3911 while (scan_p[1] != '\'' || scan_p[0] == '\\')
3913 if (scan_p[0] == '\\' && !ISSPACE (scan_p[1]))
3915 if (!ISSPACE (*scan_p))
3917 if (++scan_p >= new_clean_text_limit)
3923 case '"': /* Handle string literals. */
3924 non_whitespace_since_newline = 1;
3925 while (scan_p[1] != '"' || scan_p[0] == '\\')
3927 if (scan_p[0] == '\\' && !ISSPACE (scan_p[1]))
3929 if (!ISSPACE (*scan_p))
3931 if (++scan_p >= new_clean_text_limit)
3934 if (!ISSPACE (*scan_p))
3939 case '\\': /* Handle line continuations. */
3940 if (scan_p[1] != '\n')
3946 non_whitespace_since_newline = 0; /* Reset. */
3955 break; /* Whitespace characters. */
3959 non_whitespace_since_newline = 1;
3965 /* Given a pointer to the closing right parenthesis for a particular formals
3966 list (in the clean text buffer) find the corresponding left parenthesis
3967 and return a pointer to it. */
3970 careful_find_l_paren (p)
3976 for (paren_depth = 1, q = p-1; paren_depth; check_source (--q >= clean_text_base, 0))
3991 /* Scan the clean text buffer for cases of function definitions that we
3992 don't really know about because they were preprocessed out when the
3993 aux info files were created.
3995 In this version of protoize/unprotoize we just give a warning for each
3996 one found. A later version may be able to at least unprotoize such
3999 Note that we may easily find all function definitions simply by
4000 looking for places where there is a left paren which is (ignoring
4001 whitespace) immediately followed by either a left-brace or by an
4002 upper or lower case letter. Whenever we find this combination, we
4003 have also found a function definition header.
4005 Finding function *declarations* using syntactic clues is much harder.
4006 I will probably try to do this in a later version though. */
4009 scan_for_missed_items (file_p)
4010 const file_info *file_p;
4012 static const char *scan_p;
4013 const char *limit = clean_text_limit - 3;
4014 static const char *backup_limit;
4016 backup_limit = clean_text_base - 1;
4018 for (scan_p = clean_text_base; scan_p < limit; scan_p++)
4022 static const char *last_r_paren;
4023 const char *ahead_p;
4025 last_r_paren = scan_p;
4027 for (ahead_p = scan_p + 1; ISSPACE (*ahead_p); )
4028 check_source (++ahead_p < limit, limit);
4030 scan_p = ahead_p - 1;
4032 if (ISALPHA (*ahead_p) || *ahead_p == '{')
4034 const char *last_l_paren;
4035 const int lineno = identify_lineno (ahead_p);
4037 if (setjmp (source_confusion_recovery))
4040 /* We know we have a function definition header. Now skip
4041 leftwards over all of its associated formals lists. */
4045 last_l_paren = careful_find_l_paren (last_r_paren);
4046 for (last_r_paren = last_l_paren-1; ISSPACE (*last_r_paren); )
4047 check_source (--last_r_paren >= backup_limit, backup_limit);
4049 while (*last_r_paren == ')');
4051 if (is_id_char (*last_r_paren))
4053 const char *id_limit = last_r_paren + 1;
4054 const char *id_start;
4056 const def_dec_info *dd_p;
4058 for (id_start = id_limit-1; is_id_char (*id_start); )
4059 check_source (--id_start >= backup_limit, backup_limit);
4061 backup_limit = id_start;
4062 if ((id_length = (size_t) (id_limit - id_start)) == 0)
4066 char *func_name = (char *) alloca (id_length + 1);
4067 static const char * const stmt_keywords[]
4068 = { "if", "else", "do", "while", "for", "switch", "case", "return", 0 };
4069 const char * const *stmt_keyword;
4071 strncpy (func_name, id_start, id_length);
4072 func_name[id_length] = '\0';
4074 /* We must check here to see if we are actually looking at
4075 a statement rather than an actual function call. */
4077 for (stmt_keyword = stmt_keywords; *stmt_keyword; stmt_keyword++)
4078 if (!strcmp (func_name, *stmt_keyword))
4082 fprintf (stderr, "%s: found definition of `%s' at %s(%d)\n",
4085 shortpath (NULL, file_p->hash_entry->symbol),
4086 identify_lineno (id_start));
4088 /* We really should check for a match of the function name
4089 here also, but why bother. */
4091 for (dd_p = file_p->defs_decs; dd_p; dd_p = dd_p->next_in_file)
4092 if (dd_p->is_func_def && dd_p->line == lineno)
4095 /* If we make it here, then we did not know about this
4096 function definition. */
4098 fprintf (stderr, "%s: %d: warning: `%s' excluded by preprocessing\n",
4099 shortpath (NULL, file_p->hash_entry->symbol),
4100 identify_lineno (id_start), func_name);
4101 fprintf (stderr, "%s: function definition not converted\n",
4111 /* Do all editing operations for a single source file (either a "base" file
4112 or an "include" file). To do this we read the file into memory, keep a
4113 virgin copy there, make another cleaned in-core copy of the original file
4114 (i.e. one in which all of the comments and preprocessing directives have
4115 been replaced with whitespace), then use these two in-core copies of the
4116 file to make a new edited in-core copy of the file. Finally, rename the
4117 original file (as a way of saving it), and then write the edited version
4118 of the file from core to a disk file of the same name as the original.
4120 Note that the trick of making a copy of the original sans comments &
4121 preprocessing directives make the editing a whole lot easier. */
4125 const hash_table_entry *hp;
4127 struct stat stat_buf;
4128 const file_info *file_p = hp->fip;
4129 char *new_orig_text_base;
4130 char *new_orig_text_limit;
4131 char *new_clean_text_base;
4132 char *new_clean_text_limit;
4135 int first_definition_in_file;
4137 /* If we are not supposed to be converting this file, or if there is
4138 nothing in there which needs converting, just skip this file. */
4140 if (!needs_to_be_converted (file_p))
4143 convert_filename = file_p->hash_entry->symbol;
4145 /* Convert a file if it is in a directory where we want conversion
4146 and the file is not excluded. */
4148 if (!directory_specified_p (convert_filename)
4149 || file_excluded_p (convert_filename))
4153 /* Don't even mention "system" include files unless we are
4154 protoizing. If we are protoizing, we mention these as a
4155 gentle way of prodding the user to convert his "system"
4156 include files to prototype format. */
4157 && !in_system_include_dir (convert_filename)
4158 #endif /* defined (UNPROTOIZE) */
4160 fprintf (stderr, "%s: `%s' not converted\n",
4161 pname, shortpath (NULL, convert_filename));
4165 /* Let the user know what we are up to. */
4168 fprintf (stderr, "%s: would convert file `%s'\n",
4169 pname, shortpath (NULL, convert_filename));
4171 fprintf (stderr, "%s: converting file `%s'\n",
4172 pname, shortpath (NULL, convert_filename));
4175 /* Find out the size (in bytes) of the original file. */
4177 /* The cast avoids an erroneous warning on AIX. */
4178 if (my_stat ((char *)convert_filename, &stat_buf) == -1)
4180 int errno_val = errno;
4181 fprintf (stderr, "%s: can't get status for file `%s': %s\n",
4182 pname, shortpath (NULL, convert_filename),
4183 my_strerror (errno_val));
4186 orig_size = stat_buf.st_size;
4188 /* Allocate a buffer to hold the original text. */
4190 orig_text_base = new_orig_text_base = (char *) xmalloc (orig_size + 2);
4191 orig_text_limit = new_orig_text_limit = new_orig_text_base + orig_size;
4193 /* Allocate a buffer to hold the cleaned-up version of the original text. */
4195 clean_text_base = new_clean_text_base = (char *) xmalloc (orig_size + 2);
4196 clean_text_limit = new_clean_text_limit = new_clean_text_base + orig_size;
4197 clean_read_ptr = clean_text_base - 1;
4199 /* Allocate a buffer that will hopefully be large enough to hold the entire
4200 converted output text. As an initial guess for the maximum size of the
4201 output buffer, use 125% of the size of the original + some extra. This
4202 buffer can be expanded later as needed. */
4204 repl_size = orig_size + (orig_size >> 2) + 4096;
4205 repl_text_base = (char *) xmalloc (repl_size + 2);
4206 repl_text_limit = repl_text_base + repl_size - 1;
4207 repl_write_ptr = repl_text_base - 1;
4212 /* Open the file to be converted in READ ONLY mode. */
4214 if ((input_file = my_open (convert_filename, O_RDONLY, 0444)) == -1)
4216 int errno_val = errno;
4217 fprintf (stderr, "%s: can't open file `%s' for reading: %s\n",
4218 pname, shortpath (NULL, convert_filename),
4219 my_strerror (errno_val));
4223 /* Read the entire original source text file into the original text buffer
4224 in one swell fwoop. Then figure out where the end of the text is and
4225 make sure that it ends with a newline followed by a null. */
4227 if (safe_read (input_file, new_orig_text_base, orig_size) != orig_size)
4229 int errno_val = errno;
4231 fprintf (stderr, "\n%s: error reading input file `%s': %s\n",
4232 pname, shortpath (NULL, convert_filename),
4233 my_strerror (errno_val));
4240 if (orig_size == 0 || orig_text_limit[-1] != '\n')
4242 *new_orig_text_limit++ = '\n';
4246 /* Create the cleaned up copy of the original text. */
4248 memcpy (new_clean_text_base, orig_text_base,
4249 (size_t) (orig_text_limit - orig_text_base));
4250 do_cleaning (new_clean_text_base, new_clean_text_limit);
4255 size_t clean_size = orig_text_limit - orig_text_base;
4256 char *const clean_filename = (char *) alloca (strlen (convert_filename) + 6 + 1);
4258 /* Open (and create) the clean file. */
4260 strcpy (clean_filename, convert_filename);
4261 strcat (clean_filename, ".clean");
4262 if ((clean_file = creat (clean_filename, 0666)) == -1)
4264 int errno_val = errno;
4265 fprintf (stderr, "%s: can't create/open clean file `%s': %s\n",
4266 pname, shortpath (NULL, clean_filename),
4267 my_strerror (errno_val));
4271 /* Write the clean file. */
4273 safe_write (clean_file, new_clean_text_base, clean_size, clean_filename);
4279 /* Do a simplified scan of the input looking for things that were not
4280 mentioned in the aux info files because of the fact that they were
4281 in a region of the source which was preprocessed-out (via #if or
4284 scan_for_missed_items (file_p);
4286 /* Setup to do line-oriented forward seeking in the clean text buffer. */
4288 last_known_line_number = 1;
4289 last_known_line_start = clean_text_base;
4291 /* Now get down to business and make all of the necessary edits. */
4294 const def_dec_info *def_dec_p;
4296 first_definition_in_file = 1;
4297 def_dec_p = file_p->defs_decs;
4298 for (; def_dec_p; def_dec_p = def_dec_p->next_in_file)
4300 const char *clean_text_p = seek_to_line (def_dec_p->line);
4302 /* clean_text_p now points to the first character of the line which
4303 contains the `terminator' for the declaration or definition that
4304 we are about to process. */
4308 if (global_flag && def_dec_p->is_func_def && first_definition_in_file)
4310 add_global_decls (def_dec_p->file, clean_text_p);
4311 first_definition_in_file = 0;
4314 /* Don't edit this item if it is already in prototype format or if it
4315 is a function declaration and we have found no corresponding
4318 if (def_dec_p->prototyped
4319 || (!def_dec_p->is_func_def && !def_dec_p->definition))
4322 #endif /* !defined (UNPROTOIZE) */
4324 if (def_dec_p->is_func_def)
4325 edit_fn_definition (def_dec_p, clean_text_p);
4328 if (def_dec_p->is_implicit)
4329 add_local_decl (def_dec_p, clean_text_p);
4331 #endif /* !defined (UNPROTOIZE) */
4332 edit_fn_declaration (def_dec_p, clean_text_p);
4336 /* Finalize things. Output the last trailing part of the original text. */
4338 output_up_to (clean_text_limit - 1);
4340 /* If this is just a test run, stop now and just deallocate the buffers. */
4344 free (new_orig_text_base);
4345 free (new_clean_text_base);
4346 free (repl_text_base);
4350 /* Change the name of the original input file. This is just a quick way of
4351 saving the original file. */
4356 = (char *) xmalloc (strlen (convert_filename) + strlen (save_suffix) + 2);
4358 strcpy (new_filename, convert_filename);
4359 strcat (new_filename, save_suffix);
4360 if (my_link (convert_filename, new_filename) == -1)
4362 int errno_val = errno;
4363 if (errno_val == EEXIST)
4366 fprintf (stderr, "%s: warning: file `%s' already saved in `%s'\n",
4368 shortpath (NULL, convert_filename),
4369 shortpath (NULL, new_filename));
4373 fprintf (stderr, "%s: can't link file `%s' to `%s': %s\n",
4375 shortpath (NULL, convert_filename),
4376 shortpath (NULL, new_filename),
4377 my_strerror (errno_val));
4383 if (my_unlink (convert_filename) == -1)
4385 int errno_val = errno;
4386 fprintf (stderr, "%s: can't delete file `%s': %s\n",
4387 pname, shortpath (NULL, convert_filename),
4388 my_strerror (errno_val));
4395 /* Open (and create) the output file. */
4397 if ((output_file = creat (convert_filename, 0666)) == -1)
4399 int errno_val = errno;
4400 fprintf (stderr, "%s: can't create/open output file `%s': %s\n",
4401 pname, shortpath (NULL, convert_filename),
4402 my_strerror (errno_val));
4406 /* Write the output file. */
4409 unsigned int out_size = (repl_write_ptr + 1) - repl_text_base;
4411 safe_write (output_file, repl_text_base, out_size, convert_filename);
4414 close (output_file);
4417 /* Deallocate the conversion buffers. */
4419 free (new_orig_text_base);
4420 free (new_clean_text_base);
4421 free (repl_text_base);
4423 /* Change the mode of the output file to match the original file. */
4425 /* The cast avoids an erroneous warning on AIX. */
4426 if (my_chmod ((char *)convert_filename, stat_buf.st_mode) == -1)
4428 int errno_val = errno;
4429 fprintf (stderr, "%s: can't change mode of file `%s': %s\n",
4430 pname, shortpath (NULL, convert_filename),
4431 my_strerror (errno_val));
4434 /* Note: We would try to change the owner and group of the output file
4435 to match those of the input file here, except that may not be a good
4436 thing to do because it might be misleading. Also, it might not even
4437 be possible to do that (on BSD systems with quotas for instance). */
4440 /* Do all of the individual steps needed to do the protoization (or
4441 unprotoization) of the files referenced in the aux_info files given
4442 in the command line. */
4447 const char * const *base_pp;
4448 const char * const * const end_pps
4449 = &base_source_filenames[n_base_source_files];
4453 #endif /* !defined (UNPROTOIZE) */
4455 /* One-by-one, check (and create if necessary), open, and read all of the
4456 stuff in each aux_info file. After reading each aux_info file, the
4457 aux_info_file just read will be automatically deleted unless the
4458 keep_flag is set. */
4460 for (base_pp = base_source_filenames; base_pp < end_pps; base_pp++)
4461 process_aux_info_file (*base_pp, keep_flag, 0);
4465 /* Also open and read the special SYSCALLS.c aux_info file which gives us
4466 the prototypes for all of the standard system-supplied functions. */
4468 if (nondefault_syscalls_dir)
4470 syscalls_absolute_filename
4471 = (char *) xmalloc (strlen (nondefault_syscalls_dir)
4472 + sizeof (syscalls_filename) + 1);
4473 strcpy (syscalls_absolute_filename, nondefault_syscalls_dir);
4477 syscalls_absolute_filename
4478 = (char *) xmalloc (strlen (default_syscalls_dir)
4479 + sizeof (syscalls_filename) + 1);
4480 strcpy (syscalls_absolute_filename, default_syscalls_dir);
4483 syscalls_len = strlen (syscalls_absolute_filename);
4484 if (*(syscalls_absolute_filename + syscalls_len - 1) != '/')
4486 *(syscalls_absolute_filename + syscalls_len++) = '/';
4487 *(syscalls_absolute_filename + syscalls_len) = '\0';
4489 strcat (syscalls_absolute_filename, syscalls_filename);
4491 /* Call process_aux_info_file in such a way that it does not try to
4492 delete the SYSCALLS aux_info file. */
4494 process_aux_info_file (syscalls_absolute_filename, 1, 1);
4496 #endif /* !defined (UNPROTOIZE) */
4498 /* When we first read in all of the information from the aux_info files
4499 we saved in it descending line number order, because that was likely to
4500 be faster. Now however, we want the chains of def & dec records to
4501 appear in ascending line number order as we get further away from the
4502 file_info record that they hang from. The following line causes all of
4503 these lists to be rearranged into ascending line number order. */
4505 visit_each_hash_node (filename_primary, reverse_def_dec_list);
4509 /* Now do the "real" work. The following line causes each declaration record
4510 to be "visited". For each of these nodes, an attempt is made to match
4511 up the function declaration with a corresponding function definition,
4512 which should have a full prototype-format formals list with it. Once
4513 these match-ups are made, the conversion of the function declarations
4514 to prototype format can be made. */
4516 visit_each_hash_node (function_name_primary, connect_defs_and_decs);
4518 #endif /* !defined (UNPROTOIZE) */
4520 /* Now convert each file that can be converted (and needs to be). */
4522 visit_each_hash_node (filename_primary, edit_file);
4526 /* If we are working in cplusplus mode, try to rename all .c files to .C
4527 files. Don't panic if some of the renames don't work. */
4529 if (cplusplus_flag && !nochange_flag)
4530 visit_each_hash_node (filename_primary, rename_c_file);
4532 #endif /* !defined (UNPROTOIZE) */
4535 static struct option longopts[] =
4537 {"version", 0, 0, 'V'},
4538 {"file_name", 0, 0, 'p'},
4539 {"quiet", 0, 0, 'q'},
4540 {"silent", 0, 0, 'q'},
4541 {"force", 0, 0, 'f'},
4542 {"keep", 0, 0, 'k'},
4543 {"nosave", 0, 0, 'N'},
4544 {"nochange", 0, 0, 'n'},
4545 {"compiler-options", 1, 0, 'c'},
4546 {"exclude", 1, 0, 'x'},
4547 {"directory", 1, 0, 'd'},
4549 {"indent", 1, 0, 'i'},
4551 {"local", 0, 0, 'l'},
4552 {"global", 0, 0, 'g'},
4554 {"syscalls-dir", 1, 0, 'B'},
4566 const char *params = "";
4568 pname = strrchr (argv[0], '/');
4569 pname = pname ? pname+1 : argv[0];
4571 cwd_buffer = getpwd ();
4574 fprintf (stderr, "%s: cannot get working directory: %s\n",
4575 pname, my_strerror(errno));
4576 exit (FATAL_EXIT_CODE);
4579 /* By default, convert the files in the current directory. */
4580 directory_list = string_list_cons (cwd_buffer, NULL);
4582 while ((c = getopt_long (argc, argv,
4586 "B:c:Cd:gklnNp:qvVx:",
4588 longopts, &longind)) != EOF)
4590 if (c == 0) /* Long option. */
4591 c = longopts[longind].val;
4595 compiler_file_name = optarg;
4599 = string_list_cons (abspath (NULL, optarg), directory_list);
4602 exclude_list = string_list_cons (optarg, exclude_list);
4632 indent_string = optarg;
4634 #else /* !defined (UNPROTOIZE) */
4645 nondefault_syscalls_dir = optarg;
4647 #endif /* !defined (UNPROTOIZE) */
4653 /* Set up compile_params based on -p and -c options. */
4654 munge_compile_params (params);
4656 n_base_source_files = argc - optind;
4658 /* Now actually make a list of the base source filenames. */
4660 base_source_filenames
4661 = (const char **) xmalloc ((n_base_source_files + 1) * sizeof (char *));
4662 n_base_source_files = 0;
4663 for (; optind < argc; optind++)
4665 const char *path = abspath (NULL, argv[optind]);
4666 int len = strlen (path);
4668 if (path[len-1] == 'c' && path[len-2] == '.')
4669 base_source_filenames[n_base_source_files++] = path;
4672 fprintf (stderr, "%s: input file names must have .c suffixes: %s\n",
4673 pname, shortpath (NULL, path));
4679 /* We are only interested in the very first identifier token in the
4680 definition of `va_list', so if there is more junk after that first
4681 identifier token, delete it from the `varargs_style_indicator'. */
4685 for (cp = varargs_style_indicator; ISALNUM (*cp) || *cp == '_'; cp++)
4688 varargs_style_indicator = savestring (varargs_style_indicator,
4689 cp - varargs_style_indicator);
4691 #endif /* !defined (UNPROTOIZE) */
4698 fprintf (stderr, "%s: %s\n", pname, version_string);
4702 exit (errors ? FATAL_EXIT_CODE : SUCCESS_EXIT_CODE);