1 /* Protoize program - Original version by Ron Guilmette (rfg@segfault.us.com).
2 Copyright (C) 1989, 92-98, 1999 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. */
64 #if ! defined (_WIN32) || defined (__CYGWIN__) || defined (_UWIN)
65 #if defined(POSIX) || defined(CONCURRENT)
73 /* Some systems like Linux don't declare rindex if _POSIX_SOURCE is declared,
74 but it normally does declare it. This means that configure thinks we don't
75 need to declare it. Favor using strrchr if it is available. */
80 #define strrchr rindex
85 /* Include getopt.h for the sake of getopt_long.
86 We don't need the declaration of getopt, and it could conflict
87 with something from a system header file, so effectively nullify that. */
88 #define getopt getopt_loser
92 extern char *version_string;
94 /* Systems which are compatible only with POSIX 1003.1-1988 (but *not*
95 with POSIX 1003.1-1990), e.g. Ultrix 4.2, might not have
96 const qualifiers in the prototypes in the system include files.
97 Unfortunately, this can lead to GCC issuing lots of warnings for
98 calls to the following functions. To eliminate these warnings we
99 provide the following #defines. */
101 #define my_access(file,flag) access((char *)file, flag)
102 #define my_stat(file,pkt) stat((char *)file, pkt)
104 #define my_link(file1, file2) -1
106 #define my_link(file1, file2) link((char *)file1, (char *)file2)
108 #define my_unlink(file) unlink((char *)file)
109 #define my_open(file, mode, flag) open((char *)file, mode, flag)
110 #define my_chmod(file, mode) chmod((char *)file, mode)
112 static void usage PARAMS ((void)) ATTRIBUTE_NORETURN;
113 static void aux_info_corrupted PARAMS ((void)) ATTRIBUTE_NORETURN;
114 static void declare_source_confusing PARAMS ((const char *)) ATTRIBUTE_NORETURN;
116 /* Aliases for pointers to void.
117 These were made to facilitate compilation with old brain-dead DEC C
118 compilers which didn't properly grok `void*' types. */
120 typedef PTR pointer_type;
121 typedef const PTR const_pointer_type;
127 #else /* !defined(POSIX) */
129 /* Declaring stat or __flsbuf with a prototype
130 causes conflicts with system headers on some systems. */
132 #if 0 /* These conflict with stdio.h on some systems. */
134 extern int fprintf (FILE *, const char *, ...);
135 extern int printf (const char *, ...);
136 extern int open (const char *, int, ...);
141 extern int fflush ();
144 #ifndef fputs /* This may have been #defined by "system.h". */
147 #ifndef fputc /* some systems define this as a macro. */
150 extern int unlink ();
151 extern int access ();
153 #if 0 /* size_t from sys/types.h may fail to match GCC.
154 If so, we would get a warning from this. */
155 extern size_t strlen ()
158 #endif /* !defined (POSIX) */
160 /* Look for these where the `const' qualifier is intentionally cast aside. */
164 /* Define a default place to find the SYSCALLS.X file. */
168 #ifndef STANDARD_EXEC_PREFIX
169 #define STANDARD_EXEC_PREFIX "/usr/local/lib/gcc-lib/"
170 #endif /* !defined STANDARD_EXEC_PREFIX */
172 static char *standard_exec_prefix = STANDARD_EXEC_PREFIX;
173 static char *target_machine = DEFAULT_TARGET_MACHINE;
174 static char *target_version = DEFAULT_TARGET_VERSION;
176 #ifndef GET_ENV_PATH_LIST
177 #define GET_ENV_PATH_LIST(VAR,NAME) do { (VAR) = getenv (NAME); } while (0)
180 #endif /* !defined (UNPROTOIZE) */
182 /* Suffix of aux_info files. */
184 static const char * const aux_info_suffix = ".X";
186 /* String to attach to filenames for saved versions of original files. */
188 static const char * const save_suffix = ".save";
192 /* File name of the file which contains descriptions of standard system
193 routines. Note that we never actually do anything with this file per se,
194 but we do read in its corresponding aux_info file. */
196 static const char syscalls_filename[] = "SYSCALLS.c";
198 /* Default place to find the above file. */
200 static char * default_syscalls_dir;
202 /* Variable to hold the complete absolutized filename of the SYSCALLS.c.X
205 static char * syscalls_absolute_filename;
207 #endif /* !defined (UNPROTOIZE) */
209 /* Type of the structure that holds information about macro unexpansions. */
211 struct unexpansion_struct {
212 const char *expanded;
213 const char *contracted;
215 typedef struct unexpansion_struct unexpansion;
217 /* A table of conversions that may need to be made for some (stupid) older
218 operating systems where these types are preprocessor macros rather than
219 typedefs (as they really ought to be).
221 WARNING: The contracted forms must be as small (or smaller) as the
222 expanded forms, or else havoc will ensue. */
224 static const unexpansion unexpansions[] = {
225 { "struct _iobuf", "FILE" },
229 /* The number of "primary" slots in the hash tables for filenames and for
230 function names. This can be as big or as small as you like, except that
231 it must be a power of two. */
233 #define HASH_TABLE_SIZE (1 << 9)
235 /* Bit mask to use when computing hash values. */
237 static const int hash_mask = (HASH_TABLE_SIZE - 1);
239 /* Make a table of default system include directories
240 just as it is done in cccp.c. */
242 #ifndef STANDARD_INCLUDE_DIR
243 #define STANDARD_INCLUDE_DIR "/usr/include"
246 #ifndef LOCAL_INCLUDE_DIR
247 #define LOCAL_INCLUDE_DIR "/usr/local/include"
250 struct default_include { const char *fname;
251 const char *component;
252 int x1, x2; } include_defaults[]
253 #ifdef INCLUDE_DEFAULTS
257 /* Pick up GNU C++ specific include files. */
258 { GPLUSPLUS_INCLUDE_DIR, "G++", 1, 1 },
260 /* This is the dir for fixincludes. Put it just before
261 the files that we fix. */
262 { GCC_INCLUDE_DIR, "GCC", 0, 0 },
263 /* For cross-compilation, this dir name is generated
264 automatically in Makefile.in. */
265 { CROSS_INCLUDE_DIR, 0, 0, 0 },
266 /* This is another place that the target system's headers might be. */
267 { TOOL_INCLUDE_DIR, "BINUTILS", 0, 0 },
268 #else /* not CROSS_COMPILE */
269 /* This should be /use/local/include and should come before
270 the fixincludes-fixed header files. */
271 { LOCAL_INCLUDE_DIR, 0, 0, 1 },
272 /* This is here ahead of GCC_INCLUDE_DIR because assert.h goes here.
273 Likewise, behind LOCAL_INCLUDE_DIR, where glibc puts its assert.h. */
274 { TOOL_INCLUDE_DIR, "BINUTILS", 0, 0 },
275 /* This is the dir for fixincludes. Put it just before
276 the files that we fix. */
277 { GCC_INCLUDE_DIR, "GCC", 0, 0 },
278 /* Some systems have an extra dir of include files. */
279 #ifdef SYSTEM_INCLUDE_DIR
280 { SYSTEM_INCLUDE_DIR, 0, 0, 0 },
282 { STANDARD_INCLUDE_DIR, 0, 0, 0},
283 #endif /* not CROSS_COMPILE */
286 #endif /* no INCLUDE_DEFAULTS */
288 /* Datatype for lists of directories or filenames. */
292 struct string_list *next;
295 /* List of directories in which files should be converted. */
297 struct string_list *directory_list;
299 /* List of file names which should not be converted.
300 A file is excluded if the end of its name, following a /,
301 matches one of the names in this list. */
303 struct string_list *exclude_list;
305 /* The name of the other style of variable-number-of-parameters functions
306 (i.e. the style that we want to leave unconverted because we don't yet
307 know how to convert them to this style. This string is used in warning
310 /* Also define here the string that we can search for in the parameter lists
311 taken from the .X files which will unambiguously indicate that we have
312 found a varargs style function. */
315 static const char * const other_var_style = "stdarg";
316 #else /* !defined (UNPROTOIZE) */
317 static const char * const other_var_style = "varargs";
318 /* Note that this is a string containing the expansion of va_alist.
319 But in `main' we discard all but the first token. */
320 static const char *varargs_style_indicator = STRINGIFY (va_alist);
321 #endif /* !defined (UNPROTOIZE) */
323 /* The following two types are used to create hash tables. In this program,
324 there are two hash tables which are used to store and quickly lookup two
325 different classes of strings. The first type of strings stored in the
326 first hash table are absolute filenames of files which protoize needs to
327 know about. The second type of strings (stored in the second hash table)
328 are function names. It is this second class of strings which really
329 inspired the use of the hash tables, because there may be a lot of them. */
331 typedef struct hash_table_entry_struct hash_table_entry;
333 /* Do some typedefs so that we don't have to write "struct" so often. */
335 typedef struct def_dec_info_struct def_dec_info;
336 typedef struct file_info_struct file_info;
337 typedef struct f_list_chain_item_struct f_list_chain_item;
339 /* In the struct below, note that the "_info" field has two different uses
340 depending on the type of hash table we are in (i.e. either the filenames
341 hash table or the function names hash table). In the filenames hash table
342 the info fields of the entries point to the file_info struct which is
343 associated with each filename (1 per filename). In the function names
344 hash table, the info field points to the head of a singly linked list of
345 def_dec_info entries which are all defs or decs of the function whose
346 name is pointed to by the "symbol" field. Keeping all of the defs/decs
347 for a given function name on a special list specifically for that function
348 name makes it quick and easy to find out all of the important information
349 about a given (named) function. */
351 struct hash_table_entry_struct {
352 hash_table_entry * hash_next; /* -> to secondary entries */
353 const char * symbol; /* -> to the hashed string */
355 const def_dec_info * _ddip;
359 #define ddip _info._ddip
360 #define fip _info._fip
362 /* Define a type specifically for our two hash tables. */
364 typedef hash_table_entry hash_table[HASH_TABLE_SIZE];
366 /* The following struct holds all of the important information about any
367 single filename (e.g. file) which we need to know about. */
369 struct file_info_struct {
370 const hash_table_entry * hash_entry; /* -> to associated hash entry */
371 const def_dec_info * defs_decs; /* -> to chain of defs/decs */
372 time_t mtime; /* Time of last modification. */
375 /* Due to the possibility that functions may return pointers to functions,
376 (which may themselves have their own parameter lists) and due to the
377 fact that returned pointers-to-functions may be of type "pointer-to-
378 function-returning-pointer-to-function" (ad nauseum) we have to keep
379 an entire chain of ANSI style formal parameter lists for each function.
381 Normally, for any given function, there will only be one formals list
382 on the chain, but you never know.
384 Note that the head of each chain of formals lists is pointed to by the
385 `f_list_chain' field of the corresponding def_dec_info record.
387 For any given chain, the item at the head of the chain is the *leftmost*
388 parameter list seen in the actual C language function declaration. If
389 there are other members of the chain, then these are linked in left-to-right
390 order from the head of the chain. */
392 struct f_list_chain_item_struct {
393 const f_list_chain_item * chain_next; /* -> to next item on chain */
394 const char * formals_list; /* -> to formals list string */
397 /* The following struct holds all of the important information about any
398 single function definition or declaration which we need to know about.
399 Note that for unprotoize we don't need to know very much because we
400 never even create records for stuff that we don't intend to convert
401 (like for instance defs and decs which are already in old K&R format
402 and "implicit" function declarations). */
404 struct def_dec_info_struct {
405 const def_dec_info * next_in_file; /* -> to rest of chain for file */
406 file_info * file; /* -> file_info for containing file */
407 int line; /* source line number of def/dec */
408 const char * ansi_decl; /* -> left end of ansi decl */
409 hash_table_entry * hash_entry; /* -> hash entry for function name */
410 unsigned int is_func_def; /* = 0 means this is a declaration */
411 const def_dec_info * next_for_func; /* -> to rest of chain for func name */
412 unsigned int f_list_count; /* count of formals lists we expect */
413 char prototyped; /* = 0 means already prototyped */
415 const f_list_chain_item * f_list_chain; /* -> chain of formals lists */
416 const def_dec_info * definition; /* -> def/dec containing related def */
417 char is_static; /* = 0 means visibility is "extern" */
418 char is_implicit; /* != 0 for implicit func decl's */
419 char written; /* != 0 means written for implicit */
420 #else /* !defined (UNPROTOIZE) */
421 const char * formal_names; /* -> to list of names of formals */
422 const char * formal_decls; /* -> to string of formal declarations */
423 #endif /* !defined (UNPROTOIZE) */
426 /* Pointer to the tail component of the filename by which this program was
427 invoked. Used everywhere in error and warning messages. */
429 static const char *pname;
431 /* Error counter. Will be non-zero if we should give up at the next convenient
434 static int errors = 0;
437 /* ??? These comments should say what the flag mean as well as the options
440 /* File name to use for running gcc. Allows GCC 2 to be named
441 something other than gcc. */
442 static const char *compiler_file_name = "gcc";
444 static int version_flag = 0; /* Print our version number. */
445 static int quiet_flag = 0; /* Don't print messages normally. */
446 static int nochange_flag = 0; /* Don't convert, just say what files
447 we would have converted. */
448 static int nosave_flag = 0; /* Don't save the old version. */
449 static int keep_flag = 0; /* Don't delete the .X files. */
450 static const char ** compile_params = 0; /* Option string for gcc. */
452 static const char *indent_string = " "; /* Indentation for newly
453 inserted parm decls. */
454 #else /* !defined (UNPROTOIZE) */
455 static int local_flag = 0; /* Insert new local decls (when?). */
456 static int global_flag = 0; /* set by -g option */
457 static int cplusplus_flag = 0; /* Rename converted files to *.C. */
458 static const char *nondefault_syscalls_dir = 0; /* Dir to look for
460 #endif /* !defined (UNPROTOIZE) */
462 /* An index into the compile_params array where we should insert the source
463 file name when we are ready to exec the C compiler. A zero value indicates
464 that we have not yet called munge_compile_params. */
466 static int input_file_name_index = 0;
468 /* An index into the compile_params array where we should insert the filename
469 for the aux info file, when we run the C compiler. */
470 static int aux_info_file_name_index = 0;
472 /* Count of command line arguments which were "filename" arguments. */
474 static int n_base_source_files = 0;
476 /* Points to a malloc'ed list of pointers to all of the filenames of base
477 source files which were specified on the command line. */
479 static const char **base_source_filenames;
481 /* Line number of the line within the current aux_info file that we
482 are currently processing. Used for error messages in case the prototypes
483 info file is corrupted somehow. */
485 static int current_aux_info_lineno;
487 /* Pointer to the name of the source file currently being converted. */
489 static const char *convert_filename;
491 /* Pointer to relative root string (taken from aux_info file) which indicates
492 where directory the user was in when he did the compilation step that
493 produced the containing aux_info file. */
495 static const char *invocation_filename;
497 /* Pointer to the base of the input buffer that holds the original text for the
498 source file currently being converted. */
500 static const char *orig_text_base;
502 /* Pointer to the byte just beyond the end of the input buffer that holds the
503 original text for the source file currently being converted. */
505 static const char *orig_text_limit;
507 /* Pointer to the base of the input buffer that holds the cleaned text for the
508 source file currently being converted. */
510 static const char *clean_text_base;
512 /* Pointer to the byte just beyond the end of the input buffer that holds the
513 cleaned text for the source file currently being converted. */
515 static const char *clean_text_limit;
517 /* Pointer to the last byte in the cleaned text buffer that we have already
518 (virtually) copied to the output buffer (or decided to ignore). */
520 static const char * clean_read_ptr;
522 /* Pointer to the base of the output buffer that holds the replacement text
523 for the source file currently being converted. */
525 static char *repl_text_base;
527 /* Pointer to the byte just beyond the end of the output buffer that holds the
528 replacement text for the source file currently being converted. */
530 static char *repl_text_limit;
532 /* Pointer to the last byte which has been stored into the output buffer.
533 The next byte to be stored should be stored just past where this points
536 static char * repl_write_ptr;
538 /* Pointer into the cleaned text buffer for the source file we are currently
539 converting. This points to the first character of the line that we last
540 did a "seek_to_line" to (see below). */
542 static const char *last_known_line_start;
544 /* Number of the line (in the cleaned text buffer) that we last did a
545 "seek_to_line" to. Will be one if we just read a new source file
546 into the cleaned text buffer. */
548 static int last_known_line_number;
550 /* The filenames hash table. */
552 static hash_table filename_primary;
554 /* The function names hash table. */
556 static hash_table function_name_primary;
558 /* The place to keep the recovery address which is used only in cases where
559 we get hopelessly confused by something in the cleaned original text. */
561 static jmp_buf source_confusion_recovery;
563 /* A pointer to the current directory filename (used by abspath). */
565 static char *cwd_buffer;
567 /* A place to save the read pointer until we are sure that an individual
568 attempt at editing will succeed. */
570 static const char * saved_clean_read_ptr;
572 /* A place to save the write pointer until we are sure that an individual
573 attempt at editing will succeed. */
575 static char * saved_repl_write_ptr;
577 /* Forward declaration. */
579 static const char *shortpath ();
581 /* Translate and output an error message. */
582 static void notice PARAMS ((const char *, ...))
585 notice VPARAMS ((const char *msgid, ...))
587 #ifndef ANSI_PROTOTYPES
592 VA_START (ap, msgid);
594 #ifndef ANSI_PROTOTYPES
595 msgid = va_arg (ap, const char *);
598 vfprintf (stderr, _(msgid), ap);
615 if (e > 0 && e < sys_nerr)
616 return sys_errlist[e];
622 /* Allocate some space, but check that the allocation was successful. */
623 /* alloca.c uses this, so don't make it static. */
629 register pointer_type rv = (pointer_type) malloc (byte_count);
632 notice ("\n%s: virtual memory exceeded\n", pname);
633 exit (FATAL_EXIT_CODE);
638 /* Reallocate some space, but check that the reallocation was successful. */
641 xrealloc (old_space, byte_count)
642 pointer_type old_space;
645 register pointer_type rv;
647 rv = (pointer_type) realloc (old_space, byte_count);
649 rv = (pointer_type) malloc (byte_count);
652 notice ("\n%s: virtual memory exceeded\n", pname);
653 exit (FATAL_EXIT_CODE);
658 /* Deallocate the area pointed to by an arbitrary pointer, but first, strip
659 the `const' qualifier from it and also make sure that the pointer value
664 const_pointer_type p;
667 free ((NONCONST pointer_type) p);
670 /* Make a copy of a string INPUT with size SIZE. */
673 savestring (input, size)
677 char *output = (char *) xmalloc (size + 1);
678 strcpy (output, input);
682 /* Make a copy of the concatenation of INPUT1 and INPUT2. */
685 savestring2 (input1, size1, input2, size2)
691 char *output = (char *) xmalloc (size1 + size2 + 1);
692 strcpy (output, input1);
693 strcpy (&output[size1], input2);
697 /* More 'friendly' abort that prints the line and file.
698 config.h can #define abort fancy_abort if you like that sort of thing. */
703 notice ("%s: internal abort\n", pname);
704 exit (FATAL_EXIT_CODE);
707 /* Make a duplicate of the first N bytes of a given string in a newly
715 char *ret_val = (char *) xmalloc (n + 1);
717 strncpy (ret_val, s, n);
722 /* Return a pointer to the first occurrence of s2 within s1 or NULL if s2
723 does not occur within s1. Assume neither s1 nor s2 are null pointers. */
728 const char *const s2;
736 for (p1 = s1, p2 = s2; (c = *p2); p1++, p2++)
746 /* Read LEN bytes at PTR from descriptor DESC, for file FILENAME,
747 retrying if necessary. Return the actual number of bytes read. */
750 safe_read (desc, ptr, len)
757 int nchars = read (desc, ptr, left);
774 /* Write LEN bytes at PTR to descriptor DESC,
775 retrying if necessary, and treating any real error as fatal. */
778 safe_write (desc, ptr, len, out_fname)
785 int written = write (desc, ptr, len);
788 int errno_val = errno;
790 if (errno_val == EINTR)
793 notice ("%s: error writing file `%s': %s\n",
794 pname, shortpath (NULL, out_fname), xstrerror (errno_val));
802 /* Get setup to recover in case the edit we are about to do goes awry. */
807 saved_clean_read_ptr = clean_read_ptr;
808 saved_repl_write_ptr = repl_write_ptr;
811 /* Call this routine to recover our previous state whenever something looks
812 too confusing in the source code we are trying to edit. */
817 clean_read_ptr = saved_clean_read_ptr;
818 repl_write_ptr = saved_repl_write_ptr;
821 /* Return true if the given character is a valid identifier character. */
827 return (ISALNUM (ch) || (ch == '_') || (ch == '$'));
830 /* Give a message indicating the proper way to invoke this program and then
831 exit with non-zero status. */
837 notice ("%s: usage '%s [ -VqfnkN ] [ -i <istring> ] [ filename ... ]'\n",
839 #else /* !defined (UNPROTOIZE) */
840 notice ("%s: usage '%s [ -VqfnkNlgC ] [ -B <dirname> ] [ filename ... ]'\n",
842 #endif /* !defined (UNPROTOIZE) */
843 exit (FATAL_EXIT_CODE);
846 /* Return true if the given filename (assumed to be an absolute filename)
847 designates a file residing anywhere beneath any one of the "system"
848 include directories. */
851 in_system_include_dir (path)
854 struct default_include *p;
857 abort (); /* Must be an absolutized filename. */
859 for (p = include_defaults; p->fname; p++)
860 if (!strncmp (path, p->fname, strlen (p->fname))
861 && path[strlen (p->fname)] == '/')
867 /* Return true if the given filename designates a file that the user has
868 read access to and for which the user has write access to the containing
872 file_could_be_converted (const char *path)
874 char *const dir_name = (char *) alloca (strlen (path) + 1);
876 if (my_access (path, R_OK))
880 char *dir_last_slash;
882 strcpy (dir_name, path);
883 dir_last_slash = strrchr (dir_name, '/');
885 *dir_last_slash = '\0';
887 abort (); /* Should have been an absolutized filename. */
890 if (my_access (path, W_OK))
896 /* Return true if the given filename designates a file that we are allowed
897 to modify. Files which we should not attempt to modify are (a) "system"
898 include files, and (b) files which the user doesn't have write access to,
899 and (c) files which reside in directories which the user doesn't have
900 write access to. Unless requested to be quiet, give warnings about
901 files that we will not try to convert for one reason or another. An
902 exception is made for "system" include files, which we never try to
903 convert and for which we don't issue the usual warnings. */
906 file_normally_convertible (const char *path)
908 char *const dir_name = alloca (strlen (path) + 1);
910 if (in_system_include_dir (path))
914 char *dir_last_slash;
916 strcpy (dir_name, path);
917 dir_last_slash = strrchr (dir_name, '/');
919 *dir_last_slash = '\0';
921 abort (); /* Should have been an absolutized filename. */
924 if (my_access (path, R_OK))
927 notice ("%s: warning: no read access for file `%s'\n",
928 pname, shortpath (NULL, path));
932 if (my_access (path, W_OK))
935 notice ("%s: warning: no write access for file `%s'\n",
936 pname, shortpath (NULL, path));
940 if (my_access (dir_name, W_OK))
943 notice ("%s: warning: no write access for dir containing `%s'\n",
944 pname, shortpath (NULL, path));
954 /* Return true if the given file_info struct refers to the special SYSCALLS.c.X
955 file. Return false otherwise. */
958 is_syscalls_file (fi_p)
959 const file_info *fi_p;
961 char const *f = fi_p->hash_entry->symbol;
962 size_t fl = strlen (f), sysl = sizeof (syscalls_filename) - 1;
963 return sysl <= fl && strcmp (f + fl - sysl, syscalls_filename) == 0;
966 #endif /* !defined (UNPROTOIZE) */
968 /* Check to see if this file will need to have anything done to it on this
969 run. If there is nothing in the given file which both needs conversion
970 and for which we have the necessary stuff to do the conversion, return
971 false. Otherwise, return true.
973 Note that (for protoize) it is only valid to call this function *after*
974 the connections between declarations and definitions have all been made
975 by connect_defs_and_decs. */
978 needs_to_be_converted (file_p)
979 const file_info *file_p;
981 const def_dec_info *ddp;
985 if (is_syscalls_file (file_p))
988 #endif /* !defined (UNPROTOIZE) */
990 for (ddp = file_p->defs_decs; ddp; ddp = ddp->next_in_file)
996 /* ... and if we a protoizing and this function is in old style ... */
998 /* ... and if this a definition or is a decl with an associated def ... */
999 && (ddp->is_func_def || (!ddp->is_func_def && ddp->definition))
1001 #else /* defined (UNPROTOIZE) */
1003 /* ... and if we are unprotoizing and this function is in new style ... */
1006 #endif /* defined (UNPROTOIZE) */
1008 /* ... then the containing file needs converting. */
1013 /* Return 1 if the file name NAME is in a directory
1014 that should be converted. */
1017 directory_specified_p (name)
1020 struct string_list *p;
1022 for (p = directory_list; p; p = p->next)
1023 if (!strncmp (name, p->name, strlen (p->name))
1024 && name[strlen (p->name)] == '/')
1026 const char *q = name + strlen (p->name) + 1;
1028 /* If there are more slashes, it's in a subdir, so
1029 this match doesn't count. */
1041 /* Return 1 if the file named NAME should be excluded from conversion. */
1044 file_excluded_p (name)
1047 struct string_list *p;
1048 int len = strlen (name);
1050 for (p = exclude_list; p; p = p->next)
1051 if (!strcmp (name + len - strlen (p->name), p->name)
1052 && name[len - strlen (p->name) - 1] == '/')
1058 /* Construct a new element of a string_list.
1059 STRING is the new element value, and REST holds the remaining elements. */
1061 static struct string_list *
1062 string_list_cons (string, rest)
1064 struct string_list *rest;
1066 struct string_list *temp
1067 = (struct string_list *) xmalloc (sizeof (struct string_list));
1070 temp->name = string;
1074 /* ??? The GNU convention for mentioning function args in its comments
1075 is to capitalize them. So change "hash_tab_p" to HASH_TAB_P below.
1076 Likewise for all the other functions. */
1078 /* Given a hash table, apply some function to each node in the table. The
1079 table to traverse is given as the "hash_tab_p" argument, and the
1080 function to be applied to each node in the table is given as "func"
1084 visit_each_hash_node (hash_tab_p, func)
1085 const hash_table_entry *hash_tab_p;
1088 const hash_table_entry *primary;
1090 for (primary = hash_tab_p; primary < &hash_tab_p[HASH_TABLE_SIZE]; primary++)
1091 if (primary->symbol)
1093 hash_table_entry *second;
1096 for (second = primary->hash_next; second; second = second->hash_next)
1101 /* Initialize all of the fields of a new hash table entry, pointed
1102 to by the "p" parameter. Note that the space to hold the entry
1103 is assumed to have already been allocated before this routine is
1106 static hash_table_entry *
1108 hash_table_entry *p;
1111 p->hash_next = NULL;
1112 p->symbol = savestring (s, strlen (s));
1118 /* Look for a particular function name or filename in the particular
1119 hash table indicated by "hash_tab_p". If the name is not in the
1120 given hash table, add it. Either way, return a pointer to the
1121 hash table entry for the given name. */
1123 static hash_table_entry *
1124 lookup (hash_tab_p, search_symbol)
1125 hash_table_entry *hash_tab_p;
1126 const char *search_symbol;
1129 const char *search_symbol_char_p = search_symbol;
1130 hash_table_entry *p;
1132 while (*search_symbol_char_p)
1133 hash_value += *search_symbol_char_p++;
1134 hash_value &= hash_mask;
1135 p = &hash_tab_p[hash_value];
1137 return add_symbol (p, search_symbol);
1138 if (!strcmp (p->symbol, search_symbol))
1140 while (p->hash_next)
1143 if (!strcmp (p->symbol, search_symbol))
1146 p->hash_next = (hash_table_entry *) xmalloc (sizeof (hash_table_entry));
1148 return add_symbol (p, search_symbol);
1151 /* Throw a def/dec record on the junk heap.
1153 Also, since we are not using this record anymore, free up all of the
1154 stuff it pointed to. */
1160 xfree (p->ansi_decl);
1164 const f_list_chain_item * curr;
1165 const f_list_chain_item * next;
1167 for (curr = p->f_list_chain; curr; curr = next)
1169 next = curr->chain_next;
1173 #endif /* !defined (UNPROTOIZE) */
1178 /* Unexpand as many macro symbol as we can find.
1180 If the given line must be unexpanded, make a copy of it in the heap and
1181 return a pointer to the unexpanded copy. Otherwise return NULL. */
1184 unexpand_if_needed (aux_info_line)
1185 const char *aux_info_line;
1187 static char *line_buf = 0;
1188 static int line_buf_size = 0;
1189 const unexpansion *unexp_p;
1190 int got_unexpanded = 0;
1192 char *copy_p = line_buf;
1196 line_buf_size = 1024;
1197 line_buf = (char *) xmalloc (line_buf_size);
1202 /* Make a copy of the input string in line_buf, expanding as necessary. */
1204 for (s = aux_info_line; *s != '\n'; )
1206 for (unexp_p = unexpansions; unexp_p->expanded; unexp_p++)
1208 const char *in_p = unexp_p->expanded;
1209 size_t len = strlen (in_p);
1211 if (*s == *in_p && !strncmp (s, in_p, len) && !is_id_char (s[len]))
1213 int size = strlen (unexp_p->contracted);
1215 if (copy_p + size - line_buf >= line_buf_size)
1217 int offset = copy_p - line_buf;
1219 line_buf_size += size;
1220 line_buf = (char *) xrealloc (line_buf, line_buf_size);
1221 copy_p = line_buf + offset;
1223 strcpy (copy_p, unexp_p->contracted);
1226 /* Assume the there will not be another replacement required
1227 within the text just replaced. */
1230 goto continue_outer;
1233 if (copy_p - line_buf == line_buf_size)
1235 int offset = copy_p - line_buf;
1237 line_buf = (char *) xrealloc (line_buf, line_buf_size);
1238 copy_p = line_buf + offset;
1243 if (copy_p + 2 - line_buf >= line_buf_size)
1245 int offset = copy_p - line_buf;
1247 line_buf = (char *) xrealloc (line_buf, line_buf_size);
1248 copy_p = line_buf + offset;
1253 return (got_unexpanded ? savestring (line_buf, copy_p - line_buf) : 0);
1256 /* Return the absolutized filename for the given relative
1257 filename. Note that if that filename is already absolute, it may
1258 still be returned in a modified form because this routine also
1259 eliminates redundant slashes and single dots and eliminates double
1260 dots to get a shortest possible filename from the given input
1261 filename. The absolutization of relative filenames is made by
1262 assuming that the given filename is to be taken as relative to
1263 the first argument (cwd) or to the current directory if cwd is
1267 abspath (cwd, rel_filename)
1269 const char *rel_filename;
1271 /* Setup the current working directory as needed. */
1272 const char *cwd2 = (cwd) ? cwd : cwd_buffer;
1273 char *const abs_buffer
1274 = (char *) alloca (strlen (cwd2) + strlen (rel_filename) + 2);
1275 char *endp = abs_buffer;
1278 /* Copy the filename (possibly preceded by the current working
1279 directory name) into the absolutization buffer. */
1284 if (rel_filename[0] != '/')
1287 while ((*endp++ = *src_p++))
1289 *(endp-1) = '/'; /* overwrite null */
1291 src_p = rel_filename;
1292 while ((*endp++ = *src_p++))
1296 /* Now make a copy of abs_buffer into abs_buffer, shortening the
1297 filename (by taking out slashes and dots) as we go. */
1299 outp = inp = abs_buffer;
1300 *outp++ = *inp++; /* copy first slash */
1301 #if defined (apollo) || defined (_WIN32) || defined (__INTERIX)
1303 *outp++ = *inp++; /* copy second slash */
1309 else if (inp[0] == '/' && outp[-1] == '/')
1314 else if (inp[0] == '.' && outp[-1] == '/')
1318 else if (inp[1] == '/')
1323 else if ((inp[1] == '.') && (inp[2] == 0 || inp[2] == '/'))
1325 inp += (inp[2] == '/') ? 3 : 2;
1327 while (outp >= abs_buffer && *outp != '/')
1329 if (outp < abs_buffer)
1331 /* Catch cases like /.. where we try to backup to a
1332 point above the absolute root of the logical file
1335 notice ("%s: invalid file name: %s\n",
1336 pname, rel_filename);
1337 exit (FATAL_EXIT_CODE);
1346 /* On exit, make sure that there is a trailing null, and make sure that
1347 the last character of the returned string is *not* a slash. */
1350 if (outp[-1] == '/')
1353 /* Make a copy (in the heap) of the stuff left in the absolutization
1354 buffer and return a pointer to the copy. */
1356 return savestring (abs_buffer, outp - abs_buffer);
1359 /* Given a filename (and possibly a directory name from which the filename
1360 is relative) return a string which is the shortest possible
1361 equivalent for the corresponding full (absolutized) filename. The
1362 shortest possible equivalent may be constructed by converting the
1363 absolutized filename to be a relative filename (i.e. relative to
1364 the actual current working directory). However if a relative filename
1365 is longer, then the full absolute filename is returned.
1369 Note that "simple-minded" conversion of any given type of filename (either
1370 relative or absolute) may not result in a valid equivalent filename if any
1371 subpart of the original filename is actually a symbolic link. */
1374 shortpath (cwd, filename)
1376 const char *filename;
1380 char *cwd_p = cwd_buffer;
1382 int unmatched_slash_count = 0;
1383 size_t filename_len = strlen (filename);
1385 path_p = abspath (cwd, filename);
1386 rel_buf_p = rel_buffer = (char *) xmalloc (filename_len);
1388 while (*cwd_p && (*cwd_p == *path_p))
1393 if (!*cwd_p && (!*path_p || *path_p == '/')) /* whole pwd matched */
1395 if (!*path_p) /* input *is* the current path! */
1406 while (*cwd_p != '/') /* backup to last slash */
1413 unmatched_slash_count++;
1416 /* Find out how many directory levels in cwd were *not* matched. */
1418 if (*cwd_p++ == '/')
1419 unmatched_slash_count++;
1421 /* Now we know how long the "short name" will be.
1422 Reject it if longer than the input. */
1423 if (unmatched_slash_count * 3 + strlen (path_p) >= filename_len)
1426 /* For each of them, put a `../' at the beginning of the short name. */
1427 while (unmatched_slash_count--)
1429 /* Give up if the result gets to be longer
1430 than the absolute path name. */
1431 if (rel_buffer + filename_len <= rel_buf_p + 3)
1438 /* Then tack on the unmatched part of the desired file's name. */
1441 if (rel_buffer + filename_len <= rel_buf_p)
1444 while ((*rel_buf_p++ = *path_p++));
1447 if (*(rel_buf_p-1) == '/')
1448 *--rel_buf_p = '\0';
1453 /* Lookup the given filename in the hash table for filenames. If it is a
1454 new one, then the hash table info pointer will be null. In this case,
1455 we create a new file_info record to go with the filename, and we initialize
1456 that record with some reasonable values. */
1458 /* FILENAME was const, but that causes a warning on AIX when calling stat.
1459 That is probably a bug in AIX, but might as well avoid the warning. */
1462 find_file (filename, do_not_stat)
1466 hash_table_entry *hash_entry_p;
1468 hash_entry_p = lookup (filename_primary, filename);
1469 if (hash_entry_p->fip)
1470 return hash_entry_p->fip;
1473 struct stat stat_buf;
1474 file_info *file_p = (file_info *) xmalloc (sizeof (file_info));
1476 /* If we cannot get status on any given source file, give a warning
1477 and then just set its time of last modification to infinity. */
1480 stat_buf.st_mtime = (time_t) 0;
1483 if (my_stat (filename, &stat_buf) == -1)
1485 int errno_val = errno;
1486 notice ("%s: %s: can't get status: %s\n",
1487 pname, shortpath (NULL, filename),
1488 xstrerror (errno_val));
1489 stat_buf.st_mtime = (time_t) -1;
1493 hash_entry_p->fip = file_p;
1494 file_p->hash_entry = hash_entry_p;
1495 file_p->defs_decs = NULL;
1496 file_p->mtime = stat_buf.st_mtime;
1501 /* Generate a fatal error because some part of the aux_info file is
1505 aux_info_corrupted ()
1507 notice ("\n%s: fatal error: aux info file corrupted at line %d\n",
1508 pname, current_aux_info_lineno);
1509 exit (FATAL_EXIT_CODE);
1512 /* ??? This comment is vague. Say what the condition is for. */
1513 /* Check to see that a condition is true. This is kind of like an assert. */
1516 check_aux_info (cond)
1520 aux_info_corrupted ();
1523 /* Given a pointer to the closing right parenthesis for a particular formals
1524 list (in an aux_info file) find the corresponding left parenthesis and
1525 return a pointer to it. */
1528 find_corresponding_lparen (p)
1534 for (paren_depth = 1, q = p-1; paren_depth; q--)
1549 /* Given a line from an aux info file, and a time at which the aux info
1550 file it came from was created, check to see if the item described in
1551 the line comes from a file which has been modified since the aux info
1552 file was created. If so, return non-zero, else return zero. */
1555 referenced_file_is_newer (l, aux_info_mtime)
1557 time_t aux_info_mtime;
1563 check_aux_info (l[0] == '/');
1564 check_aux_info (l[1] == '*');
1565 check_aux_info (l[2] == ' ');
1568 const char *filename_start = p = l + 3;
1572 filename = (char *) alloca ((size_t) (p - filename_start) + 1);
1573 strncpy (filename, filename_start, (size_t) (p - filename_start));
1574 filename[p-filename_start] = '\0';
1577 /* Call find_file to find the file_info record associated with the file
1578 which contained this particular def or dec item. Note that this call
1579 may cause a new file_info record to be created if this is the first time
1580 that we have ever known about this particular file. */
1582 fi_p = find_file (abspath (invocation_filename, filename), 0);
1584 return (fi_p->mtime > aux_info_mtime);
1587 /* Given a line of info from the aux_info file, create a new
1588 def_dec_info record to remember all of the important information about
1589 a function definition or declaration.
1591 Link this record onto the list of such records for the particular file in
1592 which it occurred in proper (descending) line number order (for now).
1594 If there is an identical record already on the list for the file, throw
1595 this one away. Doing so takes care of the (useless and troublesome)
1596 duplicates which are bound to crop up due to multiple inclusions of any
1597 given individual header file.
1599 Finally, link the new def_dec record onto the list of such records
1600 pertaining to this particular function name. */
1603 save_def_or_dec (l, is_syscalls)
1608 const char *semicolon_p;
1609 def_dec_info *def_dec_p = (def_dec_info *) xmalloc (sizeof (def_dec_info));
1612 def_dec_p->written = 0;
1613 #endif /* !defined (UNPROTOIZE) */
1615 /* Start processing the line by picking off 5 pieces of information from
1616 the left hand end of the line. These are filename, line number,
1617 new/old/implicit flag (new = ANSI prototype format), definition or
1618 declaration flag, and extern/static flag). */
1620 check_aux_info (l[0] == '/');
1621 check_aux_info (l[1] == '*');
1622 check_aux_info (l[2] == ' ');
1625 const char *filename_start = p = l + 3;
1630 filename = (char *) alloca ((size_t) (p - filename_start) + 1);
1631 strncpy (filename, filename_start, (size_t) (p - filename_start));
1632 filename[p-filename_start] = '\0';
1634 /* Call find_file to find the file_info record associated with the file
1635 which contained this particular def or dec item. Note that this call
1636 may cause a new file_info record to be created if this is the first time
1637 that we have ever known about this particular file.
1639 Note that we started out by forcing all of the base source file names
1640 (i.e. the names of the aux_info files with the .X stripped off) into the
1641 filenames hash table, and we simultaneously setup file_info records for
1642 all of these base file names (even if they may be useless later).
1643 The file_info records for all of these "base" file names (properly)
1644 act as file_info records for the "original" (i.e. un-included) files
1645 which were submitted to gcc for compilation (when the -aux-info
1646 option was used). */
1648 def_dec_p->file = find_file (abspath (invocation_filename, filename), is_syscalls);
1652 const char *line_number_start = ++p;
1653 char line_number[10];
1657 strncpy (line_number, line_number_start, (size_t) (p - line_number_start));
1658 line_number[p-line_number_start] = '\0';
1659 def_dec_p->line = atoi (line_number);
1662 /* Check that this record describes a new-style, old-style, or implicit
1663 definition or declaration. */
1665 p++; /* Skip over the `:'. */
1666 check_aux_info ((*p == 'N') || (*p == 'O') || (*p == 'I'));
1668 /* Is this a new style (ANSI prototyped) definition or declaration? */
1670 def_dec_p->prototyped = (*p == 'N');
1674 /* Is this an implicit declaration? */
1676 def_dec_p->is_implicit = (*p == 'I');
1678 #endif /* !defined (UNPROTOIZE) */
1682 check_aux_info ((*p == 'C') || (*p == 'F'));
1684 /* Is this item a function definition (F) or a declaration (C). Note that
1685 we treat item taken from the syscalls file as though they were function
1686 definitions regardless of what the stuff in the file says. */
1688 def_dec_p->is_func_def = ((*p++ == 'F') || is_syscalls);
1691 def_dec_p->definition = 0; /* Fill this in later if protoizing. */
1692 #endif /* !defined (UNPROTOIZE) */
1694 check_aux_info (*p++ == ' ');
1695 check_aux_info (*p++ == '*');
1696 check_aux_info (*p++ == '/');
1697 check_aux_info (*p++ == ' ');
1700 check_aux_info ((!strncmp (p, "static", 6)) || (!strncmp (p, "extern", 6)));
1701 #else /* !defined (UNPROTOIZE) */
1702 if (!strncmp (p, "static", 6))
1703 def_dec_p->is_static = -1;
1704 else if (!strncmp (p, "extern", 6))
1705 def_dec_p->is_static = 0;
1707 check_aux_info (0); /* Didn't find either `extern' or `static'. */
1708 #endif /* !defined (UNPROTOIZE) */
1711 const char *ansi_start = p;
1713 p += 6; /* Pass over the "static" or "extern". */
1715 /* We are now past the initial stuff. Search forward from here to find
1716 the terminating semicolon that should immediately follow the entire
1717 ANSI format function declaration. */
1724 /* Make a copy of the ansi declaration part of the line from the aux_info
1727 def_dec_p->ansi_decl
1728 = dupnstr (ansi_start, (size_t) ((semicolon_p+1) - ansi_start));
1730 /* Backup and point at the final right paren of the final argument list. */
1735 def_dec_p->f_list_chain = NULL;
1736 #endif /* !defined (UNPROTOIZE) */
1738 while (p != ansi_start && (p[-1] == ' ' || p[-1] == '\t')) p--;
1741 free_def_dec (def_dec_p);
1746 /* Now isolate a whole set of formal argument lists, one-by-one. Normally,
1747 there will only be one list to isolate, but there could be more. */
1749 def_dec_p->f_list_count = 0;
1753 const char *left_paren_p = find_corresponding_lparen (p);
1756 f_list_chain_item *cip
1757 = (f_list_chain_item *) xmalloc (sizeof (f_list_chain_item));
1760 = dupnstr (left_paren_p + 1, (size_t) (p - (left_paren_p+1)));
1762 /* Add the new chain item at the head of the current list. */
1764 cip->chain_next = def_dec_p->f_list_chain;
1765 def_dec_p->f_list_chain = cip;
1767 #endif /* !defined (UNPROTOIZE) */
1768 def_dec_p->f_list_count++;
1770 p = left_paren_p - 2;
1772 /* p must now point either to another right paren, or to the last
1773 character of the name of the function that was declared/defined.
1774 If p points to another right paren, then this indicates that we
1775 are dealing with multiple formals lists. In that case, there
1776 really should be another right paren preceding this right paren. */
1781 check_aux_info (*--p == ')');
1786 const char *past_fn = p + 1;
1788 check_aux_info (*past_fn == ' ');
1790 /* Scan leftwards over the identifier that names the function. */
1792 while (is_id_char (*p))
1796 /* p now points to the leftmost character of the function name. */
1799 char *fn_string = (char *) alloca (past_fn - p + 1);
1801 strncpy (fn_string, p, (size_t) (past_fn - p));
1802 fn_string[past_fn-p] = '\0';
1803 def_dec_p->hash_entry = lookup (function_name_primary, fn_string);
1807 /* Look at all of the defs and decs for this function name that we have
1808 collected so far. If there is already one which is at the same
1809 line number in the same file, then we can discard this new def_dec_info
1812 As an extra assurance that any such pair of (nominally) identical
1813 function declarations are in fact identical, we also compare the
1814 ansi_decl parts of the lines from the aux_info files just to be on
1817 This comparison will fail if (for instance) the user was playing
1818 messy games with the preprocessor which ultimately causes one
1819 function declaration in one header file to look differently when
1820 that file is included by two (or more) other files. */
1823 const def_dec_info *other;
1825 for (other = def_dec_p->hash_entry->ddip; other; other = other->next_for_func)
1827 if (def_dec_p->line == other->line && def_dec_p->file == other->file)
1829 if (strcmp (def_dec_p->ansi_decl, other->ansi_decl))
1831 notice ("%s:%d: declaration of function `%s' takes different forms\n",
1832 def_dec_p->file->hash_entry->symbol,
1834 def_dec_p->hash_entry->symbol);
1835 exit (FATAL_EXIT_CODE);
1837 free_def_dec (def_dec_p);
1845 /* If we are doing unprotoizing, we must now setup the pointers that will
1846 point to the K&R name list and to the K&R argument declarations list.
1848 Note that if this is only a function declaration, then we should not
1849 expect to find any K&R style formals list following the ANSI-style
1850 formals list. This is because GCC knows that such information is
1851 useless in the case of function declarations (function definitions
1852 are a different story however).
1854 Since we are unprotoizing, we don't need any such lists anyway.
1855 All we plan to do is to delete all characters between ()'s in any
1858 def_dec_p->formal_names = NULL;
1859 def_dec_p->formal_decls = NULL;
1861 if (def_dec_p->is_func_def)
1864 check_aux_info (*++p == ' ');
1865 check_aux_info (*++p == '/');
1866 check_aux_info (*++p == '*');
1867 check_aux_info (*++p == ' ');
1868 check_aux_info (*++p == '(');
1871 const char *kr_names_start = ++p; /* Point just inside '('. */
1875 p--; /* point to closing right paren */
1877 /* Make a copy of the K&R parameter names list. */
1879 def_dec_p->formal_names
1880 = dupnstr (kr_names_start, (size_t) (p - kr_names_start));
1883 check_aux_info (*++p == ' ');
1886 /* p now points to the first character of the K&R style declarations
1887 list (if there is one) or to the star-slash combination that ends
1888 the comment in which such lists get embedded. */
1890 /* Make a copy of the K&R formal decls list and set the def_dec record
1893 if (*p == '*') /* Are there no K&R declarations? */
1895 check_aux_info (*++p == '/');
1896 def_dec_p->formal_decls = "";
1900 const char *kr_decls_start = p;
1902 while (p[0] != '*' || p[1] != '/')
1906 check_aux_info (*p == ' ');
1908 def_dec_p->formal_decls
1909 = dupnstr (kr_decls_start, (size_t) (p - kr_decls_start));
1912 /* Handle a special case. If we have a function definition marked as
1913 being in "old" style, and if its formal names list is empty, then
1914 it may actually have the string "void" in its real formals list
1915 in the original source code. Just to make sure, we will get setup
1916 to convert such things anyway.
1918 This kludge only needs to be here because of an insurmountable
1919 problem with generating .X files. */
1921 if (!def_dec_p->prototyped && !*def_dec_p->formal_names)
1922 def_dec_p->prototyped = 1;
1925 /* Since we are unprotoizing, if this item is already in old (K&R) style,
1926 we can just ignore it. If that is true, throw away the itme now. */
1928 if (!def_dec_p->prototyped)
1930 free_def_dec (def_dec_p);
1934 #endif /* defined (UNPROTOIZE) */
1936 /* Add this record to the head of the list of records pertaining to this
1937 particular function name. */
1939 def_dec_p->next_for_func = def_dec_p->hash_entry->ddip;
1940 def_dec_p->hash_entry->ddip = def_dec_p;
1942 /* Add this new def_dec_info record to the sorted list of def_dec_info
1943 records for this file. Note that we don't have to worry about duplicates
1944 (caused by multiple inclusions of header files) here because we have
1945 already eliminated duplicates above. */
1947 if (!def_dec_p->file->defs_decs)
1949 def_dec_p->file->defs_decs = def_dec_p;
1950 def_dec_p->next_in_file = NULL;
1954 int line = def_dec_p->line;
1955 const def_dec_info *prev = NULL;
1956 const def_dec_info *curr = def_dec_p->file->defs_decs;
1957 const def_dec_info *next = curr->next_in_file;
1959 while (next && (line < curr->line))
1963 next = next->next_in_file;
1965 if (line >= curr->line)
1967 def_dec_p->next_in_file = curr;
1969 ((NONCONST def_dec_info *) prev)->next_in_file = def_dec_p;
1971 def_dec_p->file->defs_decs = def_dec_p;
1973 else /* assert (next == NULL); */
1975 ((NONCONST def_dec_info *) curr)->next_in_file = def_dec_p;
1976 /* assert (next == NULL); */
1977 def_dec_p->next_in_file = next;
1982 /* Set up the vector COMPILE_PARAMS which is the argument list for running GCC.
1983 Also set input_file_name_index and aux_info_file_name_index
1984 to the indices of the slots where the file names should go. */
1986 /* We initialize the vector by removing -g, -O, -S, -c, and -o options,
1987 and adding '-aux-info AUXFILE -S -o /dev/null INFILE' at the end. */
1990 munge_compile_params (params_list)
1991 const char *params_list;
1993 /* Build up the contents in a temporary vector
1994 that is so big that to has to be big enough. */
1995 const char **temp_params
1996 = (const char **) alloca ((strlen (params_list) + 8) * sizeof (char *));
1997 int param_count = 0;
2000 temp_params[param_count++] = compiler_file_name;
2003 while (ISSPACE ((const unsigned char)*params_list))
2007 param = params_list;
2008 while (*params_list && !ISSPACE ((const unsigned char)*params_list))
2010 if (param[0] != '-')
2011 temp_params[param_count++]
2012 = dupnstr (param, (size_t) (params_list - param));
2021 break; /* Don't copy these. */
2023 while (ISSPACE ((const unsigned char)*params_list))
2026 && !ISSPACE ((const unsigned char)*params_list))
2030 temp_params[param_count++]
2031 = dupnstr (param, (size_t) (params_list - param));
2037 temp_params[param_count++] = "-aux-info";
2039 /* Leave room for the aux-info file name argument. */
2040 aux_info_file_name_index = param_count;
2041 temp_params[param_count++] = NULL;
2043 temp_params[param_count++] = "-S";
2044 temp_params[param_count++] = "-o";
2045 temp_params[param_count++] = "/dev/null";
2047 /* Leave room for the input file name argument. */
2048 input_file_name_index = param_count;
2049 temp_params[param_count++] = NULL;
2050 /* Terminate the list. */
2051 temp_params[param_count++] = NULL;
2053 /* Make a copy of the compile_params in heap space. */
2056 = (const char **) xmalloc (sizeof (char *) * (param_count+1));
2057 memcpy (compile_params, temp_params, sizeof (char *) * param_count);
2060 /* Do a recompilation for the express purpose of generating a new aux_info
2061 file to go with a specific base source file.
2063 The result is a boolean indicating success. */
2066 gen_aux_info_file (base_filename)
2067 const char *base_filename;
2069 if (!input_file_name_index)
2070 munge_compile_params ("");
2072 /* Store the full source file name in the argument vector. */
2073 compile_params[input_file_name_index] = shortpath (NULL, base_filename);
2074 /* Add .X to source file name to get aux-info file name. */
2075 compile_params[aux_info_file_name_index]
2076 = savestring2 (compile_params[input_file_name_index],
2077 strlen (compile_params[input_file_name_index]),
2082 notice ("%s: compiling `%s'\n",
2083 pname, compile_params[input_file_name_index]);
2086 char *errmsg_fmt, *errmsg_arg;
2087 int wait_status, pid;
2089 pid = pexecute (compile_params[0], (char * const *) compile_params,
2090 pname, NULL, &errmsg_fmt, &errmsg_arg,
2091 PEXECUTE_FIRST | PEXECUTE_LAST | PEXECUTE_SEARCH);
2095 int errno_val = errno;
2096 fprintf (stderr, "%s: ", pname);
2097 fprintf (stderr, errmsg_fmt, errmsg_arg);
2098 fprintf (stderr, ": %s\n", xstrerror (errno_val));
2102 pid = pwait (pid, &wait_status, 0);
2105 notice ("%s: wait: %s\n", pname, xstrerror (errno));
2108 if (WIFSIGNALED (wait_status))
2110 notice ("%s: subprocess got fatal signal %d\n",
2111 pname, WTERMSIG (wait_status));
2114 if (WIFEXITED (wait_status))
2116 if (WEXITSTATUS (wait_status) != 0)
2118 notice ("%s: %s exited with status %d\n",
2119 pname, compile_params[0], WEXITSTATUS (wait_status));
2128 /* Read in all of the information contained in a single aux_info file.
2129 Save all of the important stuff for later. */
2132 process_aux_info_file (base_source_filename, keep_it, is_syscalls)
2133 const char *base_source_filename;
2137 size_t base_len = strlen (base_source_filename);
2138 char * aux_info_filename
2139 = (char *) alloca (base_len + strlen (aux_info_suffix) + 1);
2140 char *aux_info_base;
2141 char *aux_info_limit;
2142 char *aux_info_relocated_name;
2143 const char *aux_info_second_line;
2144 time_t aux_info_mtime;
2145 size_t aux_info_size;
2148 /* Construct the aux_info filename from the base source filename. */
2150 strcpy (aux_info_filename, base_source_filename);
2151 strcat (aux_info_filename, aux_info_suffix);
2153 /* Check that the aux_info file exists and is readable. If it does not
2154 exist, try to create it (once only). */
2156 /* If file doesn't exist, set must_create.
2157 Likewise if it exists and we can read it but it is obsolete.
2158 Otherwise, report an error. */
2161 /* Come here with must_create set to 1 if file is out of date. */
2164 if (my_access (aux_info_filename, R_OK) == -1)
2166 if (errno == ENOENT)
2170 notice ("%s: warning: missing SYSCALLS file `%s'\n",
2171 pname, aux_info_filename);
2178 int errno_val = errno;
2179 notice ("%s: can't read aux info file `%s': %s\n",
2180 pname, shortpath (NULL, aux_info_filename),
2181 xstrerror (errno_val));
2186 #if 0 /* There is code farther down to take care of this. */
2190 stat (aux_info_file_name, &s1);
2191 stat (base_source_file_name, &s2);
2192 if (s2.st_mtime > s1.st_mtime)
2197 /* If we need a .X file, create it, and verify we can read it. */
2200 if (!gen_aux_info_file (base_source_filename))
2205 if (my_access (aux_info_filename, R_OK) == -1)
2207 int errno_val = errno;
2208 notice ("%s: can't read aux info file `%s': %s\n",
2209 pname, shortpath (NULL, aux_info_filename),
2210 xstrerror (errno_val));
2217 struct stat stat_buf;
2219 /* Get some status information about this aux_info file. */
2221 if (my_stat (aux_info_filename, &stat_buf) == -1)
2223 int errno_val = errno;
2224 notice ("%s: can't get status of aux info file `%s': %s\n",
2225 pname, shortpath (NULL, aux_info_filename),
2226 xstrerror (errno_val));
2231 /* Check on whether or not this aux_info file is zero length. If it is,
2232 then just ignore it and return. */
2234 if ((aux_info_size = stat_buf.st_size) == 0)
2237 /* Get the date/time of last modification for this aux_info file and
2238 remember it. We will have to check that any source files that it
2239 contains information about are at least this old or older. */
2241 aux_info_mtime = stat_buf.st_mtime;
2245 /* Compare mod time with the .c file; update .X file if obsolete.
2246 The code later on can fail to check the .c file
2247 if it did not directly define any functions. */
2249 if (my_stat (base_source_filename, &stat_buf) == -1)
2251 int errno_val = errno;
2252 notice ("%s: can't get status of aux info file `%s': %s\n",
2253 pname, shortpath (NULL, base_source_filename),
2254 xstrerror (errno_val));
2258 if (stat_buf.st_mtime > aux_info_mtime)
2269 /* Open the aux_info file. */
2271 if ((aux_info_file = my_open (aux_info_filename, O_RDONLY, 0444 )) == -1)
2273 int errno_val = errno;
2274 notice ("%s: can't open aux info file `%s' for reading: %s\n",
2275 pname, shortpath (NULL, aux_info_filename),
2276 xstrerror (errno_val));
2280 /* Allocate space to hold the aux_info file in memory. */
2282 aux_info_base = xmalloc (aux_info_size + 1);
2283 aux_info_limit = aux_info_base + aux_info_size;
2284 *aux_info_limit = '\0';
2286 /* Read the aux_info file into memory. */
2288 if (safe_read (aux_info_file, aux_info_base, aux_info_size) !=
2289 (int) aux_info_size)
2291 int errno_val = errno;
2292 notice ("%s: error reading aux info file `%s': %s\n",
2293 pname, shortpath (NULL, aux_info_filename),
2294 xstrerror (errno_val));
2295 free (aux_info_base);
2296 close (aux_info_file);
2300 /* Close the aux info file. */
2302 if (close (aux_info_file))
2304 int errno_val = errno;
2305 notice ("%s: error closing aux info file `%s': %s\n",
2306 pname, shortpath (NULL, aux_info_filename),
2307 xstrerror (errno_val));
2308 free (aux_info_base);
2309 close (aux_info_file);
2314 /* Delete the aux_info file (unless requested not to). If the deletion
2315 fails for some reason, don't even worry about it. */
2317 if (must_create && !keep_it)
2318 if (my_unlink (aux_info_filename) == -1)
2320 int errno_val = errno;
2321 notice ("%s: can't delete aux info file `%s': %s\n",
2322 pname, shortpath (NULL, aux_info_filename),
2323 xstrerror (errno_val));
2326 /* Save a pointer into the first line of the aux_info file which
2327 contains the filename of the directory from which the compiler
2328 was invoked when the associated source file was compiled.
2329 This information is used later to help create complete
2330 filenames out of the (potentially) relative filenames in
2331 the aux_info file. */
2334 char *p = aux_info_base;
2341 invocation_filename = p; /* Save a pointer to first byte of path. */
2346 while (*p++ != '\n')
2348 aux_info_second_line = p;
2349 aux_info_relocated_name = 0;
2350 if (invocation_filename[0] != '/')
2352 /* INVOCATION_FILENAME is relative;
2353 append it to BASE_SOURCE_FILENAME's dir. */
2355 aux_info_relocated_name = xmalloc (base_len + (p-invocation_filename));
2356 strcpy (aux_info_relocated_name, base_source_filename);
2357 dir_end = strrchr (aux_info_relocated_name, '/');
2361 dir_end = aux_info_relocated_name;
2362 strcpy (dir_end, invocation_filename);
2363 invocation_filename = aux_info_relocated_name;
2369 const char *aux_info_p;
2371 /* Do a pre-pass on the lines in the aux_info file, making sure that all
2372 of the source files referenced in there are at least as old as this
2373 aux_info file itself. If not, go back and regenerate the aux_info
2374 file anew. Don't do any of this for the syscalls file. */
2378 current_aux_info_lineno = 2;
2380 for (aux_info_p = aux_info_second_line; *aux_info_p; )
2382 if (referenced_file_is_newer (aux_info_p, aux_info_mtime))
2384 free (aux_info_base);
2385 xfree (aux_info_relocated_name);
2386 if (keep_it && my_unlink (aux_info_filename) == -1)
2388 int errno_val = errno;
2389 notice ("%s: can't delete file `%s': %s\n",
2390 pname, shortpath (NULL, aux_info_filename),
2391 xstrerror (errno_val));
2398 /* Skip over the rest of this line to start of next line. */
2400 while (*aux_info_p != '\n')
2403 current_aux_info_lineno++;
2407 /* Now do the real pass on the aux_info lines. Save their information in
2408 the in-core data base. */
2410 current_aux_info_lineno = 2;
2412 for (aux_info_p = aux_info_second_line; *aux_info_p;)
2414 char *unexpanded_line = unexpand_if_needed (aux_info_p);
2416 if (unexpanded_line)
2418 save_def_or_dec (unexpanded_line, is_syscalls);
2419 free (unexpanded_line);
2422 save_def_or_dec (aux_info_p, is_syscalls);
2424 /* Skip over the rest of this line and get to start of next line. */
2426 while (*aux_info_p != '\n')
2429 current_aux_info_lineno++;
2433 free (aux_info_base);
2434 xfree (aux_info_relocated_name);
2439 /* Check an individual filename for a .c suffix. If the filename has this
2440 suffix, rename the file such that its suffix is changed to .C. This
2441 function implements the -C option. */
2445 const hash_table_entry *hp;
2447 const char *filename = hp->symbol;
2448 int last_char_index = strlen (filename) - 1;
2449 char *const new_filename = (char *) alloca (strlen (filename) + 1);
2451 /* Note that we don't care here if the given file was converted or not. It
2452 is possible that the given file was *not* converted, simply because there
2453 was nothing in it which actually required conversion. Even in this case,
2454 we want to do the renaming. Note that we only rename files with the .c
2457 if (filename[last_char_index] != 'c' || filename[last_char_index-1] != '.')
2460 strcpy (new_filename, filename);
2461 new_filename[last_char_index] = 'C';
2463 if (my_link (filename, new_filename) == -1)
2465 int errno_val = errno;
2466 notice ("%s: warning: can't link file `%s' to `%s': %s\n",
2467 pname, shortpath (NULL, filename),
2468 shortpath (NULL, new_filename), xstrerror (errno_val));
2473 if (my_unlink (filename) == -1)
2475 int errno_val = errno;
2476 notice ("%s: warning: can't delete file `%s': %s\n",
2477 pname, shortpath (NULL, filename), xstrerror (errno_val));
2483 #endif /* !defined (UNPROTOIZE) */
2485 /* Take the list of definitions and declarations attached to a particular
2486 file_info node and reverse the order of the list. This should get the
2487 list into an order such that the item with the lowest associated line
2488 number is nearest the head of the list. When these lists are originally
2489 built, they are in the opposite order. We want to traverse them in
2490 normal line number order later (i.e. lowest to highest) so reverse the
2494 reverse_def_dec_list (hp)
2495 const hash_table_entry *hp;
2497 file_info *file_p = hp->fip;
2498 def_dec_info *prev = NULL;
2499 def_dec_info *current = (def_dec_info *)file_p->defs_decs;
2502 return; /* no list to reverse */
2505 if (! (current = (def_dec_info *)current->next_in_file))
2506 return; /* can't reverse a single list element */
2508 prev->next_in_file = NULL;
2512 def_dec_info *next = (def_dec_info *)current->next_in_file;
2514 current->next_in_file = prev;
2519 file_p->defs_decs = prev;
2524 /* Find the (only?) extern definition for a particular function name, starting
2525 from the head of the linked list of entries for the given name. If we
2526 cannot find an extern definition for the given function name, issue a
2527 warning and scrounge around for the next best thing, i.e. an extern
2528 function declaration with a prototype attached to it. Note that we only
2529 allow such substitutions for extern declarations and never for static
2530 declarations. That's because the only reason we allow them at all is
2531 to let un-prototyped function declarations for system-supplied library
2532 functions get their prototypes from our own extra SYSCALLS.c.X file which
2533 contains all of the correct prototypes for system functions. */
2535 static const def_dec_info *
2536 find_extern_def (head, user)
2537 const def_dec_info *head;
2538 const def_dec_info *user;
2540 const def_dec_info *dd_p;
2541 const def_dec_info *extern_def_p = NULL;
2542 int conflict_noted = 0;
2544 /* Don't act too stupid here. Somebody may try to convert an entire system
2545 in one swell fwoop (rather than one program at a time, as should be done)
2546 and in that case, we may find that there are multiple extern definitions
2547 of a given function name in the entire set of source files that we are
2548 converting. If however one of these definitions resides in exactly the
2549 same source file as the reference we are trying to satisfy then in that
2550 case it would be stupid for us to fail to realize that this one definition
2551 *must* be the precise one we are looking for.
2553 To make sure that we don't miss an opportunity to make this "same file"
2554 leap of faith, we do a prescan of the list of records relating to the
2555 given function name, and we look (on this first scan) *only* for a
2556 definition of the function which is in the same file as the reference
2557 we are currently trying to satisfy. */
2559 for (dd_p = head; dd_p; dd_p = dd_p->next_for_func)
2560 if (dd_p->is_func_def && !dd_p->is_static && dd_p->file == user->file)
2563 /* Now, since we have not found a definition in the same file as the
2564 reference, we scan the list again and consider all possibilities from
2565 all files. Here we may get conflicts with the things listed in the
2566 SYSCALLS.c.X file, but if that happens it only means that the source
2567 code being converted contains its own definition of a function which
2568 could have been supplied by libc.a. In such cases, we should avoid
2569 issuing the normal warning, and defer to the definition given in the
2572 for (dd_p = head; dd_p; dd_p = dd_p->next_for_func)
2573 if (dd_p->is_func_def && !dd_p->is_static)
2575 if (!extern_def_p) /* Previous definition? */
2576 extern_def_p = dd_p; /* Remember the first definition found. */
2579 /* Ignore definition just found if it came from SYSCALLS.c.X. */
2581 if (is_syscalls_file (dd_p->file))
2584 /* Quietly replace the definition previously found with the one
2585 just found if the previous one was from SYSCALLS.c.X. */
2587 if (is_syscalls_file (extern_def_p->file))
2589 extern_def_p = dd_p;
2593 /* If we get here, then there is a conflict between two function
2594 declarations for the same function, both of which came from the
2597 if (!conflict_noted) /* first time we noticed? */
2600 notice ("%s: conflicting extern definitions of '%s'\n",
2601 pname, head->hash_entry->symbol);
2604 notice ("%s: declarations of '%s' will not be converted\n",
2605 pname, head->hash_entry->symbol);
2606 notice ("%s: conflict list for '%s' follows:\n",
2607 pname, head->hash_entry->symbol);
2608 fprintf (stderr, "%s: %s(%d): %s\n",
2610 shortpath (NULL, extern_def_p->file->hash_entry->symbol),
2611 extern_def_p->line, extern_def_p->ansi_decl);
2615 fprintf (stderr, "%s: %s(%d): %s\n",
2617 shortpath (NULL, dd_p->file->hash_entry->symbol),
2618 dd_p->line, dd_p->ansi_decl);
2622 /* We want to err on the side of caution, so if we found multiple conflicting
2623 definitions for the same function, treat this as being that same as if we
2624 had found no definitions (i.e. return NULL). */
2631 /* We have no definitions for this function so do the next best thing.
2632 Search for an extern declaration already in prototype form. */
2634 for (dd_p = head; dd_p; dd_p = dd_p->next_for_func)
2635 if (!dd_p->is_func_def && !dd_p->is_static && dd_p->prototyped)
2637 extern_def_p = dd_p; /* save a pointer to the definition */
2639 notice ("%s: warning: using formals list from %s(%d) for function `%s'\n",
2641 shortpath (NULL, dd_p->file->hash_entry->symbol),
2642 dd_p->line, dd_p->hash_entry->symbol);
2646 /* Gripe about unprototyped function declarations that we found no
2647 corresponding definition (or other source of prototype information)
2650 Gripe even if the unprototyped declaration we are worried about
2651 exists in a file in one of the "system" include directories. We
2652 can gripe about these because we should have at least found a
2653 corresponding (pseudo) definition in the SYSCALLS.c.X file. If we
2654 didn't, then that means that the SYSCALLS.c.X file is missing some
2655 needed prototypes for this particular system. That is worth telling
2660 const char *file = user->file->hash_entry->symbol;
2663 if (in_system_include_dir (file))
2665 /* Why copy this string into `needed' at all?
2666 Why not just use user->ansi_decl without copying? */
2667 char *needed = (char *) alloca (strlen (user->ansi_decl) + 1);
2670 strcpy (needed, user->ansi_decl);
2671 p = (NONCONST char *) substr (needed, user->hash_entry->symbol)
2672 + strlen (user->hash_entry->symbol) + 2;
2673 /* Avoid having ??? in the string. */
2679 notice ("%s: %d: `%s' used but missing from SYSCALLS\n",
2680 shortpath (NULL, file), user->line,
2681 needed+7); /* Don't print "extern " */
2685 notice ("%s: %d: warning: no extern definition for `%s'\n",
2686 shortpath (NULL, file), user->line,
2687 user->hash_entry->symbol);
2691 return extern_def_p;
2694 /* Find the (only?) static definition for a particular function name in a
2695 given file. Here we get the function-name and the file info indirectly
2696 from the def_dec_info record pointer which is passed in. */
2698 static const def_dec_info *
2699 find_static_definition (user)
2700 const def_dec_info *user;
2702 const def_dec_info *head = user->hash_entry->ddip;
2703 const def_dec_info *dd_p;
2704 int num_static_defs = 0;
2705 const def_dec_info *static_def_p = NULL;
2707 for (dd_p = head; dd_p; dd_p = dd_p->next_for_func)
2708 if (dd_p->is_func_def && dd_p->is_static && (dd_p->file == user->file))
2710 static_def_p = dd_p; /* save a pointer to the definition */
2713 if (num_static_defs == 0)
2716 notice ("%s: warning: no static definition for `%s' in file `%s'\n",
2717 pname, head->hash_entry->symbol,
2718 shortpath (NULL, user->file->hash_entry->symbol));
2720 else if (num_static_defs > 1)
2722 notice ("%s: multiple static defs of `%s' in file `%s'\n",
2723 pname, head->hash_entry->symbol,
2724 shortpath (NULL, user->file->hash_entry->symbol));
2727 return static_def_p;
2730 /* Find good prototype style formal argument lists for all of the function
2731 declarations which didn't have them before now.
2733 To do this we consider each function name one at a time. For each function
2734 name, we look at the items on the linked list of def_dec_info records for
2735 that particular name.
2737 Somewhere on this list we should find one (and only one) def_dec_info
2738 record which represents the actual function definition, and this record
2739 should have a nice formal argument list already associated with it.
2741 Thus, all we have to do is to connect up all of the other def_dec_info
2742 records for this particular function name to the special one which has
2743 the full-blown formals list.
2745 Of course it is a little more complicated than just that. See below for
2749 connect_defs_and_decs (hp)
2750 const hash_table_entry *hp;
2752 const def_dec_info *dd_p;
2753 const def_dec_info *extern_def_p = NULL;
2754 int first_extern_reference = 1;
2756 /* Traverse the list of definitions and declarations for this particular
2757 function name. For each item on the list, if it is a function
2758 definition (either old style or new style) then GCC has already been
2759 kind enough to produce a prototype for us, and it is associated with
2760 the item already, so declare the item as its own associated "definition".
2762 Also, for each item which is only a function declaration, but which
2763 nonetheless has its own prototype already (obviously supplied by the user)
2764 declare the item as its own definition.
2766 Note that when/if there are multiple user-supplied prototypes already
2767 present for multiple declarations of any given function, these multiple
2768 prototypes *should* all match exactly with one another and with the
2769 prototype for the actual function definition. We don't check for this
2770 here however, since we assume that the compiler must have already done
2771 this consistency checking when it was creating the .X files. */
2773 for (dd_p = hp->ddip; dd_p; dd_p = dd_p->next_for_func)
2774 if (dd_p->prototyped)
2775 ((NONCONST def_dec_info *) dd_p)->definition = dd_p;
2777 /* Traverse the list of definitions and declarations for this particular
2778 function name. For each item on the list, if it is an extern function
2779 declaration and if it has no associated definition yet, go try to find
2780 the matching extern definition for the declaration.
2782 When looking for the matching function definition, warn the user if we
2785 If we find more that one function definition also issue a warning.
2787 Do the search for the matching definition only once per unique function
2788 name (and only when absolutely needed) so that we can avoid putting out
2789 redundant warning messages, and so that we will only put out warning
2790 messages when there is actually a reference (i.e. a declaration) for
2791 which we need to find a matching definition. */
2793 for (dd_p = hp->ddip; dd_p; dd_p = dd_p->next_for_func)
2794 if (!dd_p->is_func_def && !dd_p->is_static && !dd_p->definition)
2796 if (first_extern_reference)
2798 extern_def_p = find_extern_def (hp->ddip, dd_p);
2799 first_extern_reference = 0;
2801 ((NONCONST def_dec_info *) dd_p)->definition = extern_def_p;
2804 /* Traverse the list of definitions and declarations for this particular
2805 function name. For each item on the list, if it is a static function
2806 declaration and if it has no associated definition yet, go try to find
2807 the matching static definition for the declaration within the same file.
2809 When looking for the matching function definition, warn the user if we
2810 fail to find one in the same file with the declaration, and refuse to
2811 convert this kind of cross-file static function declaration. After all,
2812 this is stupid practice and should be discouraged.
2814 We don't have to worry about the possibility that there is more than one
2815 matching function definition in the given file because that would have
2816 been flagged as an error by the compiler.
2818 Do the search for the matching definition only once per unique
2819 function-name/source-file pair (and only when absolutely needed) so that
2820 we can avoid putting out redundant warning messages, and so that we will
2821 only put out warning messages when there is actually a reference (i.e. a
2822 declaration) for which we actually need to find a matching definition. */
2824 for (dd_p = hp->ddip; dd_p; dd_p = dd_p->next_for_func)
2825 if (!dd_p->is_func_def && dd_p->is_static && !dd_p->definition)
2827 const def_dec_info *dd_p2;
2828 const def_dec_info *static_def;
2830 /* We have now found a single static declaration for which we need to
2831 find a matching definition. We want to minimize the work (and the
2832 number of warnings), so we will find an appropriate (matching)
2833 static definition for this declaration, and then distribute it
2834 (as the definition for) any and all other static declarations
2835 for this function name which occur within the same file, and which
2836 do not already have definitions.
2838 Note that a trick is used here to prevent subsequent attempts to
2839 call find_static_definition for a given function-name & file
2840 if the first such call returns NULL. Essentially, we convert
2841 these NULL return values to -1, and put the -1 into the definition
2842 field for each other static declaration from the same file which
2843 does not already have an associated definition.
2844 This makes these other static declarations look like they are
2845 actually defined already when the outer loop here revisits them
2846 later on. Thus, the outer loop will skip over them. Later, we
2847 turn the -1's back to NULL's. */
2849 ((NONCONST def_dec_info *) dd_p)->definition =
2850 (static_def = find_static_definition (dd_p))
2852 : (const def_dec_info *) -1;
2854 for (dd_p2 = dd_p->next_for_func; dd_p2; dd_p2 = dd_p2->next_for_func)
2855 if (!dd_p2->is_func_def && dd_p2->is_static
2856 && !dd_p2->definition && (dd_p2->file == dd_p->file))
2857 ((NONCONST def_dec_info *)dd_p2)->definition = dd_p->definition;
2860 /* Convert any dummy (-1) definitions we created in the step above back to
2861 NULL's (as they should be). */
2863 for (dd_p = hp->ddip; dd_p; dd_p = dd_p->next_for_func)
2864 if (dd_p->definition == (def_dec_info *) -1)
2865 ((NONCONST def_dec_info *) dd_p)->definition = NULL;
2868 #endif /* !defined (UNPROTOIZE) */
2870 /* Give a pointer into the clean text buffer, return a number which is the
2871 original source line number that the given pointer points into. */
2874 identify_lineno (clean_p)
2875 const char *clean_p;
2880 for (scan_p = clean_text_base; scan_p <= clean_p; scan_p++)
2881 if (*scan_p == '\n')
2886 /* Issue an error message and give up on doing this particular edit. */
2889 declare_source_confusing (clean_p)
2890 const char *clean_p;
2895 notice ("%s: %d: warning: source too confusing\n",
2896 shortpath (NULL, convert_filename), last_known_line_number);
2898 notice ("%s: %d: warning: source too confusing\n",
2899 shortpath (NULL, convert_filename),
2900 identify_lineno (clean_p));
2902 longjmp (source_confusion_recovery, 1);
2905 /* Check that a condition which is expected to be true in the original source
2906 code is in fact true. If not, issue an error message and give up on
2907 converting this particular source file. */
2910 check_source (cond, clean_p)
2912 const char *clean_p;
2915 declare_source_confusing (clean_p);
2918 /* If we think of the in-core cleaned text buffer as a memory mapped
2919 file (with the variable last_known_line_start acting as sort of a
2920 file pointer) then we can imagine doing "seeks" on the buffer. The
2921 following routine implements a kind of "seek" operation for the in-core
2922 (cleaned) copy of the source file. When finished, it returns a pointer to
2923 the start of a given (numbered) line in the cleaned text buffer.
2925 Note that protoize only has to "seek" in the forward direction on the
2926 in-core cleaned text file buffers, and it never needs to back up.
2928 This routine is made a little bit faster by remembering the line number
2929 (and pointer value) supplied (and returned) from the previous "seek".
2930 This prevents us from always having to start all over back at the top
2931 of the in-core cleaned buffer again. */
2937 if (n < last_known_line_number)
2940 while (n > last_known_line_number)
2942 while (*last_known_line_start != '\n')
2943 check_source (++last_known_line_start < clean_text_limit, 0);
2944 last_known_line_start++;
2945 last_known_line_number++;
2947 return last_known_line_start;
2950 /* Given a pointer to a character in the cleaned text buffer, return a pointer
2951 to the next non-whitespace character which follows it. */
2954 forward_to_next_token_char (ptr)
2957 for (++ptr; ISSPACE ((const unsigned char)*ptr);
2958 check_source (++ptr < clean_text_limit, 0))
2963 /* Copy a chunk of text of length `len' and starting at `str' to the current
2964 output buffer. Note that all attempts to add stuff to the current output
2965 buffer ultimately go through here. */
2968 output_bytes (str, len)
2972 if ((repl_write_ptr + 1) + len >= repl_text_limit)
2974 size_t new_size = (repl_text_limit - repl_text_base) << 1;
2975 char *new_buf = (char *) xrealloc (repl_text_base, new_size);
2977 repl_write_ptr = new_buf + (repl_write_ptr - repl_text_base);
2978 repl_text_base = new_buf;
2979 repl_text_limit = new_buf + new_size;
2981 memcpy (repl_write_ptr + 1, str, len);
2982 repl_write_ptr += len;
2985 /* Copy all bytes (except the trailing null) of a null terminated string to
2986 the current output buffer. */
2992 output_bytes (str, strlen (str));
2995 /* Copy some characters from the original text buffer to the current output
2998 This routine takes a pointer argument `p' which is assumed to be a pointer
2999 into the cleaned text buffer. The bytes which are copied are the `original'
3000 equivalents for the set of bytes between the last value of `clean_read_ptr'
3001 and the argument value `p'.
3003 The set of bytes copied however, comes *not* from the cleaned text buffer,
3004 but rather from the direct counterparts of these bytes within the original
3007 Thus, when this function is called, some bytes from the original text
3008 buffer (which may include original comments and preprocessing directives)
3009 will be copied into the output buffer.
3011 Note that the request implied when this routine is called includes the
3012 byte pointed to by the argument pointer `p'. */
3018 size_t copy_length = (size_t) (p - clean_read_ptr);
3019 const char *copy_start = orig_text_base+(clean_read_ptr-clean_text_base)+1;
3021 if (copy_length == 0)
3024 output_bytes (copy_start, copy_length);
3028 /* Given a pointer to a def_dec_info record which represents some form of
3029 definition of a function (perhaps a real definition, or in lieu of that
3030 perhaps just a declaration with a full prototype) return true if this
3031 function is one which we should avoid converting. Return false
3035 other_variable_style_function (ansi_header)
3036 const char *ansi_header;
3040 /* See if we have a stdarg function, or a function which has stdarg style
3041 parameters or a stdarg style return type. */
3043 return substr (ansi_header, "...") != 0;
3045 #else /* !defined (UNPROTOIZE) */
3047 /* See if we have a varargs function, or a function which has varargs style
3048 parameters or a varargs style return type. */
3051 int len = strlen (varargs_style_indicator);
3053 for (p = ansi_header; p; )
3055 const char *candidate;
3057 if ((candidate = substr (p, varargs_style_indicator)) == 0)
3060 if (!is_id_char (candidate[-1]) && !is_id_char (candidate[len]))
3066 #endif /* !defined (UNPROTOIZE) */
3069 /* Do the editing operation specifically for a function "declaration". Note
3070 that editing for function "definitions" are handled in a separate routine
3074 edit_fn_declaration (def_dec_p, clean_text_p)
3075 const def_dec_info *def_dec_p;
3076 const char *volatile clean_text_p;
3078 const char *start_formals;
3079 const char *end_formals;
3080 const char *function_to_edit = def_dec_p->hash_entry->symbol;
3081 size_t func_name_len = strlen (function_to_edit);
3082 const char *end_of_fn_name;
3086 const f_list_chain_item *this_f_list_chain_item;
3087 const def_dec_info *definition = def_dec_p->definition;
3089 /* If we are protoizing, and if we found no corresponding definition for
3090 this particular function declaration, then just leave this declaration
3091 exactly as it is. */
3096 /* If we are protoizing, and if the corresponding definition that we found
3097 for this particular function declaration defined an old style varargs
3098 function, then we want to issue a warning and just leave this function
3099 declaration unconverted. */
3101 if (other_variable_style_function (definition->ansi_decl))
3104 notice ("%s: %d: warning: varargs function declaration not converted\n",
3105 shortpath (NULL, def_dec_p->file->hash_entry->symbol),
3110 #endif /* !defined (UNPROTOIZE) */
3112 /* Setup here to recover from confusing source code detected during this
3113 particular "edit". */
3116 if (setjmp (source_confusion_recovery))
3118 restore_pointers ();
3119 notice ("%s: declaration of function `%s' not converted\n",
3120 pname, function_to_edit);
3124 /* We are editing a function declaration. The line number we did a seek to
3125 contains the comma or semicolon which follows the declaration. Our job
3126 now is to scan backwards looking for the function name. This name *must*
3127 be followed by open paren (ignoring whitespace, of course). We need to
3128 replace everything between that open paren and the corresponding closing
3129 paren. If we are protoizing, we need to insert the prototype-style
3130 formals lists. If we are unprotoizing, we need to just delete everything
3131 between the pairs of opening and closing parens. */
3133 /* First move up to the end of the line. */
3135 while (*clean_text_p != '\n')
3136 check_source (++clean_text_p < clean_text_limit, 0);
3137 clean_text_p--; /* Point to just before the newline character. */
3139 /* Now we can scan backwards for the function name. */
3145 /* Scan leftwards until we find some character which can be
3146 part of an identifier. */
3148 while (!is_id_char (*clean_text_p))
3149 check_source (--clean_text_p > clean_read_ptr, 0);
3151 /* Scan backwards until we find a char that cannot be part of an
3154 while (is_id_char (*clean_text_p))
3155 check_source (--clean_text_p > clean_read_ptr, 0);
3157 /* Having found an "id break", see if the following id is the one
3158 that we are looking for. If so, then exit from this loop. */
3160 if (!strncmp (clean_text_p+1, function_to_edit, func_name_len))
3162 char ch = *(clean_text_p + 1 + func_name_len);
3164 /* Must also check to see that the name in the source text
3165 ends where it should (in order to prevent bogus matches
3166 on similar but longer identifiers. */
3168 if (! is_id_char (ch))
3169 break; /* exit from loop */
3173 /* We have now found the first perfect match for the function name in
3174 our backward search. This may or may not be the actual function
3175 name at the start of the actual function declaration (i.e. we could
3176 have easily been mislead). We will try to avoid getting fooled too
3177 often by looking forward for the open paren which should follow the
3178 identifier we just found. We ignore whitespace while hunting. If
3179 the next non-whitespace byte we see is *not* an open left paren,
3180 then we must assume that we have been fooled and we start over
3181 again accordingly. Note that there is no guarantee, that even if
3182 we do see the open paren, that we are in the right place.
3183 Programmers do the strangest things sometimes! */
3185 end_of_fn_name = clean_text_p + strlen (def_dec_p->hash_entry->symbol);
3186 start_formals = forward_to_next_token_char (end_of_fn_name);
3188 while (*start_formals != '(');
3190 /* start_of_formals now points to the opening left paren which immediately
3191 follows the name of the function. */
3193 /* Note that there may be several formals lists which need to be modified
3194 due to the possibility that the return type of this function is a
3195 pointer-to-function type. If there are several formals lists, we
3196 convert them in left-to-right order here. */
3199 this_f_list_chain_item = definition->f_list_chain;
3200 #endif /* !defined (UNPROTOIZE) */
3207 end_formals = start_formals + 1;
3209 for (; depth; check_source (++end_formals < clean_text_limit, 0))
3211 switch (*end_formals)
3224 /* end_formals now points to the closing right paren of the formals
3225 list whose left paren is pointed to by start_formals. */
3227 /* Now, if we are protoizing, we insert the new ANSI-style formals list
3228 attached to the associated definition of this function. If however
3229 we are unprotoizing, then we simply delete any formals list which
3232 output_up_to (start_formals);
3234 if (this_f_list_chain_item)
3236 output_string (this_f_list_chain_item->formals_list);
3237 this_f_list_chain_item = this_f_list_chain_item->chain_next;
3242 notice ("%s: warning: too many parameter lists in declaration of `%s'\n",
3243 pname, def_dec_p->hash_entry->symbol);
3244 check_source (0, end_formals); /* leave the declaration intact */
3246 #endif /* !defined (UNPROTOIZE) */
3247 clean_read_ptr = end_formals - 1;
3249 /* Now see if it looks like there may be another formals list associated
3250 with the function declaration that we are converting (following the
3251 formals list that we just converted. */
3254 const char *another_r_paren = forward_to_next_token_char (end_formals);
3256 if ((*another_r_paren != ')')
3257 || (*(start_formals = forward_to_next_token_char (another_r_paren)) != '('))
3260 if (this_f_list_chain_item)
3263 notice ("\n%s: warning: too few parameter lists in declaration of `%s'\n",
3264 pname, def_dec_p->hash_entry->symbol);
3265 check_source (0, start_formals); /* leave the decl intact */
3267 #endif /* !defined (UNPROTOIZE) */
3273 /* There does appear to be yet another formals list, so loop around
3274 again, and convert it also. */
3278 /* Edit a whole group of formals lists, starting with the rightmost one
3279 from some set of formals lists. This routine is called once (from the
3280 outside) for each function declaration which is converted. It is
3281 recursive however, and it calls itself once for each remaining formal
3282 list that lies to the left of the one it was originally called to work
3283 on. Thus, a whole set gets done in right-to-left order.
3285 This routine returns non-zero if it thinks that it should not be trying
3286 to convert this particular function definition (because the name of the
3287 function doesn't match the one expected). */
3290 edit_formals_lists (end_formals, f_list_count, def_dec_p)
3291 const char *end_formals;
3292 unsigned int f_list_count;
3293 const def_dec_info *def_dec_p;
3295 const char *start_formals;
3298 start_formals = end_formals - 1;
3300 for (; depth; check_source (--start_formals > clean_read_ptr, 0))
3302 switch (*start_formals)
3314 /* start_formals now points to the opening left paren of the formals list. */
3320 const char *next_end;
3322 /* There should be more formal lists to the left of here. */
3324 next_end = start_formals - 1;
3325 check_source (next_end > clean_read_ptr, 0);
3326 while (ISSPACE ((const unsigned char)*next_end))
3327 check_source (--next_end > clean_read_ptr, 0);
3328 check_source (*next_end == ')', next_end);
3329 check_source (--next_end > clean_read_ptr, 0);
3330 check_source (*next_end == ')', next_end);
3331 if (edit_formals_lists (next_end, f_list_count, def_dec_p))
3335 /* Check that the function name in the header we are working on is the same
3336 as the one we would expect to find. If not, issue a warning and return
3339 if (f_list_count == 0)
3341 const char *expected = def_dec_p->hash_entry->symbol;
3342 const char *func_name_start;
3343 const char *func_name_limit;
3344 size_t func_name_len;
3346 for (func_name_limit = start_formals-1;
3347 ISSPACE ((const unsigned char)*func_name_limit); )
3348 check_source (--func_name_limit > clean_read_ptr, 0);
3350 for (func_name_start = func_name_limit++;
3351 is_id_char (*func_name_start);
3353 check_source (func_name_start > clean_read_ptr, 0);
3355 func_name_len = func_name_limit - func_name_start;
3356 if (func_name_len == 0)
3357 check_source (0, func_name_start);
3358 if (func_name_len != strlen (expected)
3359 || strncmp (func_name_start, expected, func_name_len))
3361 notice ("%s: %d: warning: found `%s' but expected `%s'\n",
3362 shortpath (NULL, def_dec_p->file->hash_entry->symbol),
3363 identify_lineno (func_name_start),
3364 dupnstr (func_name_start, func_name_len),
3370 output_up_to (start_formals);
3373 if (f_list_count == 0)
3374 output_string (def_dec_p->formal_names);
3375 #else /* !defined (UNPROTOIZE) */
3377 unsigned f_list_depth;
3378 const f_list_chain_item *flci_p = def_dec_p->f_list_chain;
3380 /* At this point, the current value of f_list count says how many
3381 links we have to follow through the f_list_chain to get to the
3382 particular formals list that we need to output next. */
3384 for (f_list_depth = 0; f_list_depth < f_list_count; f_list_depth++)
3385 flci_p = flci_p->chain_next;
3386 output_string (flci_p->formals_list);
3388 #endif /* !defined (UNPROTOIZE) */
3390 clean_read_ptr = end_formals - 1;
3394 /* Given a pointer to a byte in the clean text buffer which points to
3395 the beginning of a line that contains a "follower" token for a
3396 function definition header, do whatever is necessary to find the
3397 right closing paren for the rightmost formals list of the function
3398 definition header. */
3401 find_rightmost_formals_list (clean_text_p)
3402 const char *clean_text_p;
3404 const char *end_formals;
3406 /* We are editing a function definition. The line number we did a seek
3407 to contains the first token which immediately follows the entire set of
3408 formals lists which are part of this particular function definition
3411 Our job now is to scan leftwards in the clean text looking for the
3412 right-paren which is at the end of the function header's rightmost
3415 If we ignore whitespace, this right paren should be the first one we
3416 see which is (ignoring whitespace) immediately followed either by the
3417 open curly-brace beginning the function body or by an alphabetic
3418 character (in the case where the function definition is in old (K&R)
3419 style and there are some declarations of formal parameters). */
3421 /* It is possible that the right paren we are looking for is on the
3422 current line (together with its following token). Just in case that
3423 might be true, we start out here by skipping down to the right end of
3424 the current line before starting our scan. */
3426 for (end_formals = clean_text_p; *end_formals != '\n'; end_formals++)
3432 /* Now scan backwards while looking for the right end of the rightmost
3433 formals list associated with this function definition. */
3437 const char *l_brace_p;
3439 /* Look leftward and try to find a right-paren. */
3441 while (*end_formals != ')')
3443 if (ISSPACE ((unsigned char)*end_formals))
3444 while (ISSPACE ((unsigned char)*end_formals))
3445 check_source (--end_formals > clean_read_ptr, 0);
3447 check_source (--end_formals > clean_read_ptr, 0);
3450 ch = *(l_brace_p = forward_to_next_token_char (end_formals));
3451 /* Since we are unprotoizing an ANSI-style (prototyped) function
3452 definition, there had better not be anything (except whitespace)
3453 between the end of the ANSI formals list and the beginning of the
3454 function body (i.e. the '{'). */
3456 check_source (ch == '{', l_brace_p);
3459 #else /* !defined (UNPROTOIZE) */
3461 /* Now scan backwards while looking for the right end of the rightmost
3462 formals list associated with this function definition. */
3467 const char *l_brace_p;
3469 /* Look leftward and try to find a right-paren. */
3471 while (*end_formals != ')')
3473 if (ISSPACE ((const unsigned char)*end_formals))
3474 while (ISSPACE ((const unsigned char)*end_formals))
3475 check_source (--end_formals > clean_read_ptr, 0);
3477 check_source (--end_formals > clean_read_ptr, 0);
3480 ch = *(l_brace_p = forward_to_next_token_char (end_formals));
3482 /* Since it is possible that we found a right paren before the starting
3483 '{' of the body which IS NOT the one at the end of the real K&R
3484 formals list (say for instance, we found one embedded inside one of
3485 the old K&R formal parameter declarations) we have to check to be
3486 sure that this is in fact the right paren that we were looking for.
3488 The one we were looking for *must* be followed by either a '{' or
3489 by an alphabetic character, while others *cannot* validly be followed
3490 by such characters. */
3492 if ((ch == '{') || ISALPHA ((unsigned char)ch))
3495 /* At this point, we have found a right paren, but we know that it is
3496 not the one we were looking for, so backup one character and keep
3499 check_source (--end_formals > clean_read_ptr, 0);
3502 #endif /* !defined (UNPROTOIZE) */
3509 /* Insert into the output file a totally new declaration for a function
3510 which (up until now) was being called from within the current block
3511 without having been declared at any point such that the declaration
3512 was visible (i.e. in scope) at the point of the call.
3514 We need to add in explicit declarations for all such function calls
3515 in order to get the full benefit of prototype-based function call
3516 parameter type checking. */
3519 add_local_decl (def_dec_p, clean_text_p)
3520 const def_dec_info *def_dec_p;
3521 const char *clean_text_p;
3523 const char *start_of_block;
3524 const char *function_to_edit = def_dec_p->hash_entry->symbol;
3526 /* Don't insert new local explicit declarations unless explicitly requested
3532 /* Setup here to recover from confusing source code detected during this
3533 particular "edit". */
3536 if (setjmp (source_confusion_recovery))
3538 restore_pointers ();
3539 notice ("%s: local declaration for function `%s' not inserted\n",
3540 pname, function_to_edit);
3544 /* We have already done a seek to the start of the line which should
3545 contain *the* open curly brace which begins the block in which we need
3546 to insert an explicit function declaration (to replace the implicit one).
3548 Now we scan that line, starting from the left, until we find the
3549 open curly brace we are looking for. Note that there may actually be
3550 multiple open curly braces on the given line, but we will be happy
3551 with the leftmost one no matter what. */
3553 start_of_block = clean_text_p;
3554 while (*start_of_block != '{' && *start_of_block != '\n')
3555 check_source (++start_of_block < clean_text_limit, 0);
3557 /* Note that the line from the original source could possibly
3558 contain *no* open curly braces! This happens if the line contains
3559 a macro call which expands into a chunk of text which includes a
3560 block (and that block's associated open and close curly braces).
3561 In cases like this, we give up, issue a warning, and do nothing. */
3563 if (*start_of_block != '{')
3566 notice ("\n%s: %d: warning: can't add declaration of `%s' into macro call\n",
3567 def_dec_p->file->hash_entry->symbol, def_dec_p->line,
3568 def_dec_p->hash_entry->symbol);
3572 /* Figure out what a nice (pretty) indentation would be for the new
3573 declaration we are adding. In order to do this, we must scan forward
3574 from the '{' until we find the first line which starts with some
3575 non-whitespace characters (i.e. real "token" material). */
3578 const char *ep = forward_to_next_token_char (start_of_block) - 1;
3581 /* Now we have ep pointing at the rightmost byte of some existing indent
3582 stuff. At least that is the hope.
3584 We can now just scan backwards and find the left end of the existing
3585 indentation string, and then copy it to the output buffer. */
3587 for (sp = ep; ISSPACE ((const unsigned char)*sp) && *sp != '\n'; sp--)
3590 /* Now write out the open { which began this block, and any following
3591 trash up to and including the last byte of the existing indent that
3596 /* Now we go ahead and insert the new declaration at this point.
3598 If the definition of the given function is in the same file that we
3599 are currently editing, and if its full ANSI declaration normally
3600 would start with the keyword `extern', suppress the `extern'. */
3603 const char *decl = def_dec_p->definition->ansi_decl;
3605 if ((*decl == 'e') && (def_dec_p->file == def_dec_p->definition->file))
3607 output_string (decl);
3610 /* Finally, write out a new indent string, just like the preceding one
3611 that we found. This will typically include a newline as the first
3612 character of the indent string. */
3614 output_bytes (sp, (size_t) (ep - sp) + 1);
3618 /* Given a pointer to a file_info record, and a pointer to the beginning
3619 of a line (in the clean text buffer) which is assumed to contain the
3620 first "follower" token for the first function definition header in the
3621 given file, find a good place to insert some new global function
3622 declarations (which will replace scattered and imprecise implicit ones)
3623 and then insert the new explicit declaration at that point in the file. */
3626 add_global_decls (file_p, clean_text_p)
3627 const file_info *file_p;
3628 const char *clean_text_p;
3630 const def_dec_info *dd_p;
3633 /* Setup here to recover from confusing source code detected during this
3634 particular "edit". */
3637 if (setjmp (source_confusion_recovery))
3639 restore_pointers ();
3640 notice ("%s: global declarations for file `%s' not inserted\n",
3641 pname, shortpath (NULL, file_p->hash_entry->symbol));
3645 /* Start by finding a good location for adding the new explicit function
3646 declarations. To do this, we scan backwards, ignoring whitespace
3647 and comments and other junk until we find either a semicolon, or until
3648 we hit the beginning of the file. */
3650 scan_p = find_rightmost_formals_list (clean_text_p);
3653 if (scan_p < clean_text_base)
3655 check_source (scan_p > clean_read_ptr, 0);
3660 /* scan_p now points either to a semicolon, or to just before the start
3661 of the whole file. */
3663 /* Now scan forward for the first non-whitespace character. In theory,
3664 this should be the first character of the following function definition
3665 header. We will put in the added declarations just prior to that. */
3668 while (ISSPACE ((const unsigned char)*scan_p))
3672 output_up_to (scan_p);
3674 /* Now write out full prototypes for all of the things that had been
3675 implicitly declared in this file (but only those for which we were
3676 actually able to find unique matching definitions). Avoid duplicates
3677 by marking things that we write out as we go. */
3680 int some_decls_added = 0;
3682 for (dd_p = file_p->defs_decs; dd_p; dd_p = dd_p->next_in_file)
3683 if (dd_p->is_implicit && dd_p->definition && !dd_p->definition->written)
3685 const char *decl = dd_p->definition->ansi_decl;
3687 /* If the function for which we are inserting a declaration is
3688 actually defined later in the same file, then suppress the
3689 leading `extern' keyword (if there is one). */
3691 if (*decl == 'e' && (dd_p->file == dd_p->definition->file))
3694 output_string ("\n");
3695 output_string (decl);
3696 some_decls_added = 1;
3697 ((NONCONST def_dec_info *) dd_p->definition)->written = 1;
3699 if (some_decls_added)
3700 output_string ("\n\n");
3703 /* Unmark all of the definitions that we just marked. */
3705 for (dd_p = file_p->defs_decs; dd_p; dd_p = dd_p->next_in_file)
3706 if (dd_p->definition)
3707 ((NONCONST def_dec_info *) dd_p->definition)->written = 0;
3710 #endif /* !defined (UNPROTOIZE) */
3712 /* Do the editing operation specifically for a function "definition". Note
3713 that editing operations for function "declarations" are handled by a
3714 separate routine above. */
3717 edit_fn_definition (def_dec_p, clean_text_p)
3718 const def_dec_info *def_dec_p;
3719 const char *clean_text_p;
3721 const char *end_formals;
3722 const char *function_to_edit = def_dec_p->hash_entry->symbol;
3724 /* Setup here to recover from confusing source code detected during this
3725 particular "edit". */
3728 if (setjmp (source_confusion_recovery))
3730 restore_pointers ();
3731 notice ("%s: definition of function `%s' not converted\n",
3732 pname, function_to_edit);
3736 end_formals = find_rightmost_formals_list (clean_text_p);
3738 /* end_of_formals now points to the closing right paren of the rightmost
3739 formals list which is actually part of the `header' of the function
3740 definition that we are converting. */
3742 /* If the header of this function definition looks like it declares a
3743 function with a variable number of arguments, and if the way it does
3744 that is different from that way we would like it (i.e. varargs vs.
3745 stdarg) then issue a warning and leave the header unconverted. */
3747 if (other_variable_style_function (def_dec_p->ansi_decl))
3750 notice ("%s: %d: warning: definition of %s not converted\n",
3751 shortpath (NULL, def_dec_p->file->hash_entry->symbol),
3752 identify_lineno (end_formals),
3754 output_up_to (end_formals);
3758 if (edit_formals_lists (end_formals, def_dec_p->f_list_count, def_dec_p))
3760 restore_pointers ();
3761 notice ("%s: definition of function `%s' not converted\n",
3762 pname, function_to_edit);
3766 /* Have to output the last right paren because this never gets flushed by
3767 edit_formals_list. */
3769 output_up_to (end_formals);
3774 const char *semicolon_p;
3775 const char *limit_p;
3777 int had_newlines = 0;
3779 /* Now write out the K&R style formal declarations, one per line. */
3781 decl_p = def_dec_p->formal_decls;
3782 limit_p = decl_p + strlen (decl_p);
3783 for (;decl_p < limit_p; decl_p = semicolon_p + 2)
3785 for (semicolon_p = decl_p; *semicolon_p != ';'; semicolon_p++)
3787 output_string ("\n");
3788 output_string (indent_string);
3789 output_bytes (decl_p, (size_t) ((semicolon_p + 1) - decl_p));
3792 /* If there are no newlines between the end of the formals list and the
3793 start of the body, we should insert one now. */
3795 for (scan_p = end_formals+1; *scan_p != '{'; )
3797 if (*scan_p == '\n')
3802 check_source (++scan_p < clean_text_limit, 0);
3805 output_string ("\n");
3807 #else /* !defined (UNPROTOIZE) */
3808 /* If we are protoizing, there may be some flotsam & jetsam (like comments
3809 and preprocessing directives) after the old formals list but before
3810 the following { and we would like to preserve that stuff while effectively
3811 deleting the existing K&R formal parameter declarations. We do so here
3812 in a rather tricky way. Basically, we white out any stuff *except*
3813 the comments/pp-directives in the original text buffer, then, if there
3814 is anything in this area *other* than whitespace, we output it. */
3816 const char *end_formals_orig;
3817 const char *start_body;
3818 const char *start_body_orig;
3820 const char *scan_orig;
3821 int have_flotsam = 0;
3822 int have_newlines = 0;
3824 for (start_body = end_formals + 1; *start_body != '{';)
3825 check_source (++start_body < clean_text_limit, 0);
3827 end_formals_orig = orig_text_base + (end_formals - clean_text_base);
3828 start_body_orig = orig_text_base + (start_body - clean_text_base);
3829 scan = end_formals + 1;
3830 scan_orig = end_formals_orig + 1;
3831 for (; scan < start_body; scan++, scan_orig++)
3833 if (*scan == *scan_orig)
3835 have_newlines |= (*scan_orig == '\n');
3836 /* Leave identical whitespace alone. */
3837 if (!ISSPACE ((const unsigned char)*scan_orig))
3838 *((NONCONST char *)scan_orig) = ' '; /* identical - so whiteout */
3844 output_bytes (end_formals_orig + 1,
3845 (size_t) (start_body_orig - end_formals_orig) - 1);
3848 output_string ("\n");
3850 output_string (" ");
3851 clean_read_ptr = start_body - 1;
3853 #endif /* !defined (UNPROTOIZE) */
3856 /* Clean up the clean text buffer. Do this by converting comments and
3857 preprocessing directives into spaces. Also convert line continuations
3858 into whitespace. Also, whiteout string and character literals. */
3861 do_cleaning (new_clean_text_base, new_clean_text_limit)
3862 char *new_clean_text_base;
3863 char *new_clean_text_limit;
3866 int non_whitespace_since_newline = 0;
3868 for (scan_p = new_clean_text_base; scan_p < new_clean_text_limit; scan_p++)
3872 case '/': /* Handle comments. */
3873 if (scan_p[1] != '*')
3875 non_whitespace_since_newline = 1;
3879 while (scan_p[1] != '/' || scan_p[0] != '*')
3881 if (!ISSPACE ((const unsigned char)*scan_p))
3883 if (++scan_p >= new_clean_text_limit)
3890 case '#': /* Handle pp directives. */
3891 if (non_whitespace_since_newline)
3894 while (scan_p[1] != '\n' || scan_p[0] == '\\')
3896 if (!ISSPACE ((const unsigned char)*scan_p))
3898 if (++scan_p >= new_clean_text_limit)
3904 case '\'': /* Handle character literals. */
3905 non_whitespace_since_newline = 1;
3906 while (scan_p[1] != '\'' || scan_p[0] == '\\')
3908 if (scan_p[0] == '\\'
3909 && !ISSPACE ((const unsigned char)scan_p[1]))
3911 if (!ISSPACE ((const unsigned char)*scan_p))
3913 if (++scan_p >= new_clean_text_limit)
3919 case '"': /* Handle string literals. */
3920 non_whitespace_since_newline = 1;
3921 while (scan_p[1] != '"' || scan_p[0] == '\\')
3923 if (scan_p[0] == '\\'
3924 && !ISSPACE ((const unsigned char)scan_p[1]))
3926 if (!ISSPACE ((const unsigned char)*scan_p))
3928 if (++scan_p >= new_clean_text_limit)
3931 if (!ISSPACE ((const unsigned char)*scan_p))
3936 case '\\': /* Handle line continuations. */
3937 if (scan_p[1] != '\n')
3943 non_whitespace_since_newline = 0; /* Reset. */
3952 break; /* Whitespace characters. */
3956 non_whitespace_since_newline = 1;
3962 /* Given a pointer to the closing right parenthesis for a particular formals
3963 list (in the clean text buffer) find the corresponding left parenthesis
3964 and return a pointer to it. */
3967 careful_find_l_paren (p)
3973 for (paren_depth = 1, q = p-1; paren_depth; check_source (--q >= clean_text_base, 0))
3988 /* Scan the clean text buffer for cases of function definitions that we
3989 don't really know about because they were preprocessed out when the
3990 aux info files were created.
3992 In this version of protoize/unprotoize we just give a warning for each
3993 one found. A later version may be able to at least unprotoize such
3996 Note that we may easily find all function definitions simply by
3997 looking for places where there is a left paren which is (ignoring
3998 whitespace) immediately followed by either a left-brace or by an
3999 upper or lower case letter. Whenever we find this combination, we
4000 have also found a function definition header.
4002 Finding function *declarations* using syntactic clues is much harder.
4003 I will probably try to do this in a later version though. */
4006 scan_for_missed_items (file_p)
4007 const file_info *file_p;
4009 static const char *scan_p;
4010 const char *limit = clean_text_limit - 3;
4011 static const char *backup_limit;
4013 backup_limit = clean_text_base - 1;
4015 for (scan_p = clean_text_base; scan_p < limit; scan_p++)
4019 static const char *last_r_paren;
4020 const char *ahead_p;
4022 last_r_paren = scan_p;
4024 for (ahead_p = scan_p + 1; ISSPACE ((const unsigned char)*ahead_p); )
4025 check_source (++ahead_p < limit, limit);
4027 scan_p = ahead_p - 1;
4029 if (ISALPHA ((const unsigned char)*ahead_p) || *ahead_p == '{')
4031 const char *last_l_paren;
4032 const int lineno = identify_lineno (ahead_p);
4034 if (setjmp (source_confusion_recovery))
4037 /* We know we have a function definition header. Now skip
4038 leftwards over all of its associated formals lists. */
4042 last_l_paren = careful_find_l_paren (last_r_paren);
4043 for (last_r_paren = last_l_paren-1;
4044 ISSPACE ((const unsigned char)*last_r_paren); )
4045 check_source (--last_r_paren >= backup_limit, backup_limit);
4047 while (*last_r_paren == ')');
4049 if (is_id_char (*last_r_paren))
4051 const char *id_limit = last_r_paren + 1;
4052 const char *id_start;
4054 const def_dec_info *dd_p;
4056 for (id_start = id_limit-1; is_id_char (*id_start); )
4057 check_source (--id_start >= backup_limit, backup_limit);
4059 backup_limit = id_start;
4060 if ((id_length = (size_t) (id_limit - id_start)) == 0)
4064 char *func_name = (char *) alloca (id_length + 1);
4065 static const char * const stmt_keywords[]
4066 = { "if", "else", "do", "while", "for", "switch", "case", "return", 0 };
4067 const char * const *stmt_keyword;
4069 strncpy (func_name, id_start, id_length);
4070 func_name[id_length] = '\0';
4072 /* We must check here to see if we are actually looking at
4073 a statement rather than an actual function call. */
4075 for (stmt_keyword = stmt_keywords; *stmt_keyword; stmt_keyword++)
4076 if (!strcmp (func_name, *stmt_keyword))
4080 notice ("%s: found definition of `%s' at %s(%d)\n",
4083 shortpath (NULL, file_p->hash_entry->symbol),
4084 identify_lineno (id_start));
4086 /* We really should check for a match of the function name
4087 here also, but why bother. */
4089 for (dd_p = file_p->defs_decs; dd_p; dd_p = dd_p->next_in_file)
4090 if (dd_p->is_func_def && dd_p->line == lineno)
4093 /* If we make it here, then we did not know about this
4094 function definition. */
4096 notice ("%s: %d: warning: `%s' excluded by preprocessing\n",
4097 shortpath (NULL, file_p->hash_entry->symbol),
4098 identify_lineno (id_start), func_name);
4099 notice ("%s: function definition not converted\n",
4109 /* Do all editing operations for a single source file (either a "base" file
4110 or an "include" file). To do this we read the file into memory, keep a
4111 virgin copy there, make another cleaned in-core copy of the original file
4112 (i.e. one in which all of the comments and preprocessing directives have
4113 been replaced with whitespace), then use these two in-core copies of the
4114 file to make a new edited in-core copy of the file. Finally, rename the
4115 original file (as a way of saving it), and then write the edited version
4116 of the file from core to a disk file of the same name as the original.
4118 Note that the trick of making a copy of the original sans comments &
4119 preprocessing directives make the editing a whole lot easier. */
4123 const hash_table_entry *hp;
4125 struct stat stat_buf;
4126 const file_info *file_p = hp->fip;
4127 char *new_orig_text_base;
4128 char *new_orig_text_limit;
4129 char *new_clean_text_base;
4130 char *new_clean_text_limit;
4133 int first_definition_in_file;
4135 /* If we are not supposed to be converting this file, or if there is
4136 nothing in there which needs converting, just skip this file. */
4138 if (!needs_to_be_converted (file_p))
4141 convert_filename = file_p->hash_entry->symbol;
4143 /* Convert a file if it is in a directory where we want conversion
4144 and the file is not excluded. */
4146 if (!directory_specified_p (convert_filename)
4147 || file_excluded_p (convert_filename))
4151 /* Don't even mention "system" include files unless we are
4152 protoizing. If we are protoizing, we mention these as a
4153 gentle way of prodding the user to convert his "system"
4154 include files to prototype format. */
4155 && !in_system_include_dir (convert_filename)
4156 #endif /* defined (UNPROTOIZE) */
4158 notice ("%s: `%s' not converted\n",
4159 pname, shortpath (NULL, convert_filename));
4163 /* Let the user know what we are up to. */
4166 notice ("%s: would convert file `%s'\n",
4167 pname, shortpath (NULL, convert_filename));
4169 notice ("%s: converting file `%s'\n",
4170 pname, shortpath (NULL, convert_filename));
4173 /* Find out the size (in bytes) of the original file. */
4175 /* The cast avoids an erroneous warning on AIX. */
4176 if (my_stat ((char *)convert_filename, &stat_buf) == -1)
4178 int errno_val = errno;
4179 notice ("%s: can't get status for file `%s': %s\n",
4180 pname, shortpath (NULL, convert_filename),
4181 xstrerror (errno_val));
4184 orig_size = stat_buf.st_size;
4186 /* Allocate a buffer to hold the original text. */
4188 orig_text_base = new_orig_text_base = (char *) xmalloc (orig_size + 2);
4189 orig_text_limit = new_orig_text_limit = new_orig_text_base + orig_size;
4191 /* Allocate a buffer to hold the cleaned-up version of the original text. */
4193 clean_text_base = new_clean_text_base = (char *) xmalloc (orig_size + 2);
4194 clean_text_limit = new_clean_text_limit = new_clean_text_base + orig_size;
4195 clean_read_ptr = clean_text_base - 1;
4197 /* Allocate a buffer that will hopefully be large enough to hold the entire
4198 converted output text. As an initial guess for the maximum size of the
4199 output buffer, use 125% of the size of the original + some extra. This
4200 buffer can be expanded later as needed. */
4202 repl_size = orig_size + (orig_size >> 2) + 4096;
4203 repl_text_base = (char *) xmalloc (repl_size + 2);
4204 repl_text_limit = repl_text_base + repl_size - 1;
4205 repl_write_ptr = repl_text_base - 1;
4210 /* Open the file to be converted in READ ONLY mode. */
4212 if ((input_file = my_open (convert_filename, O_RDONLY, 0444)) == -1)
4214 int errno_val = errno;
4215 notice ("%s: can't open file `%s' for reading: %s\n",
4216 pname, shortpath (NULL, convert_filename),
4217 xstrerror (errno_val));
4221 /* Read the entire original source text file into the original text buffer
4222 in one swell fwoop. Then figure out where the end of the text is and
4223 make sure that it ends with a newline followed by a null. */
4225 if (safe_read (input_file, new_orig_text_base, orig_size) !=
4228 int errno_val = errno;
4230 notice ("\n%s: error reading input file `%s': %s\n",
4231 pname, shortpath (NULL, convert_filename),
4232 xstrerror (errno_val));
4239 if (orig_size == 0 || orig_text_limit[-1] != '\n')
4241 *new_orig_text_limit++ = '\n';
4245 /* Create the cleaned up copy of the original text. */
4247 memcpy (new_clean_text_base, orig_text_base,
4248 (size_t) (orig_text_limit - orig_text_base));
4249 do_cleaning (new_clean_text_base, new_clean_text_limit);
4254 size_t clean_size = orig_text_limit - orig_text_base;
4255 char *const clean_filename = (char *) alloca (strlen (convert_filename) + 6 + 1);
4257 /* Open (and create) the clean file. */
4259 strcpy (clean_filename, convert_filename);
4260 strcat (clean_filename, ".clean");
4261 if ((clean_file = creat (clean_filename, 0666)) == -1)
4263 int errno_val = errno;
4264 notice ("%s: can't create/open clean file `%s': %s\n",
4265 pname, shortpath (NULL, clean_filename),
4266 xstrerror (errno_val));
4270 /* Write the clean file. */
4272 safe_write (clean_file, new_clean_text_base, clean_size, clean_filename);
4278 /* Do a simplified scan of the input looking for things that were not
4279 mentioned in the aux info files because of the fact that they were
4280 in a region of the source which was preprocessed-out (via #if or
4283 scan_for_missed_items (file_p);
4285 /* Setup to do line-oriented forward seeking in the clean text buffer. */
4287 last_known_line_number = 1;
4288 last_known_line_start = clean_text_base;
4290 /* Now get down to business and make all of the necessary edits. */
4293 const def_dec_info *def_dec_p;
4295 first_definition_in_file = 1;
4296 def_dec_p = file_p->defs_decs;
4297 for (; def_dec_p; def_dec_p = def_dec_p->next_in_file)
4299 const char *clean_text_p = seek_to_line (def_dec_p->line);
4301 /* clean_text_p now points to the first character of the line which
4302 contains the `terminator' for the declaration or definition that
4303 we are about to process. */
4307 if (global_flag && def_dec_p->is_func_def && first_definition_in_file)
4309 add_global_decls (def_dec_p->file, clean_text_p);
4310 first_definition_in_file = 0;
4313 /* Don't edit this item if it is already in prototype format or if it
4314 is a function declaration and we have found no corresponding
4317 if (def_dec_p->prototyped
4318 || (!def_dec_p->is_func_def && !def_dec_p->definition))
4321 #endif /* !defined (UNPROTOIZE) */
4323 if (def_dec_p->is_func_def)
4324 edit_fn_definition (def_dec_p, clean_text_p);
4327 if (def_dec_p->is_implicit)
4328 add_local_decl (def_dec_p, clean_text_p);
4330 #endif /* !defined (UNPROTOIZE) */
4331 edit_fn_declaration (def_dec_p, clean_text_p);
4335 /* Finalize things. Output the last trailing part of the original text. */
4337 output_up_to (clean_text_limit - 1);
4339 /* If this is just a test run, stop now and just deallocate the buffers. */
4343 free (new_orig_text_base);
4344 free (new_clean_text_base);
4345 free (repl_text_base);
4349 /* Change the name of the original input file. This is just a quick way of
4350 saving the original file. */
4355 = (char *) xmalloc (strlen (convert_filename) + strlen (save_suffix) + 2);
4357 strcpy (new_filename, convert_filename);
4358 strcat (new_filename, save_suffix);
4359 if (my_link (convert_filename, new_filename) == -1)
4361 int errno_val = errno;
4362 if (errno_val == EEXIST)
4365 notice ("%s: warning: file `%s' already saved in `%s'\n",
4367 shortpath (NULL, convert_filename),
4368 shortpath (NULL, new_filename));
4372 notice ("%s: can't link file `%s' to `%s': %s\n",
4374 shortpath (NULL, convert_filename),
4375 shortpath (NULL, new_filename),
4376 xstrerror (errno_val));
4382 if (my_unlink (convert_filename) == -1)
4384 int errno_val = errno;
4385 notice ("%s: can't delete file `%s': %s\n",
4386 pname, shortpath (NULL, convert_filename),
4387 xstrerror (errno_val));
4394 /* Open (and create) the output file. */
4396 if ((output_file = creat (convert_filename, 0666)) == -1)
4398 int errno_val = errno;
4399 notice ("%s: can't create/open output file `%s': %s\n",
4400 pname, shortpath (NULL, convert_filename),
4401 xstrerror (errno_val));
4405 /* Write the output file. */
4408 unsigned int out_size = (repl_write_ptr + 1) - repl_text_base;
4410 safe_write (output_file, repl_text_base, out_size, convert_filename);
4413 close (output_file);
4416 /* Deallocate the conversion buffers. */
4418 free (new_orig_text_base);
4419 free (new_clean_text_base);
4420 free (repl_text_base);
4422 /* Change the mode of the output file to match the original file. */
4424 /* The cast avoids an erroneous warning on AIX. */
4425 if (my_chmod ((char *)convert_filename, stat_buf.st_mode) == -1)
4427 int errno_val = errno;
4428 notice ("%s: can't change mode of file `%s': %s\n",
4429 pname, shortpath (NULL, convert_filename),
4430 xstrerror (errno_val));
4433 /* Note: We would try to change the owner and group of the output file
4434 to match those of the input file here, except that may not be a good
4435 thing to do because it might be misleading. Also, it might not even
4436 be possible to do that (on BSD systems with quotas for instance). */
4439 /* Do all of the individual steps needed to do the protoization (or
4440 unprotoization) of the files referenced in the aux_info files given
4441 in the command line. */
4446 const char * const *base_pp;
4447 const char * const * const end_pps
4448 = &base_source_filenames[n_base_source_files];
4452 #endif /* !defined (UNPROTOIZE) */
4454 /* One-by-one, check (and create if necessary), open, and read all of the
4455 stuff in each aux_info file. After reading each aux_info file, the
4456 aux_info_file just read will be automatically deleted unless the
4457 keep_flag is set. */
4459 for (base_pp = base_source_filenames; base_pp < end_pps; base_pp++)
4460 process_aux_info_file (*base_pp, keep_flag, 0);
4464 /* Also open and read the special SYSCALLS.c aux_info file which gives us
4465 the prototypes for all of the standard system-supplied functions. */
4467 if (nondefault_syscalls_dir)
4469 syscalls_absolute_filename
4470 = (char *) xmalloc (strlen (nondefault_syscalls_dir) + 1
4471 + sizeof (syscalls_filename));
4472 strcpy (syscalls_absolute_filename, nondefault_syscalls_dir);
4476 GET_ENV_PATH_LIST (default_syscalls_dir, "GCC_EXEC_PREFIX");
4477 if (!default_syscalls_dir)
4479 default_syscalls_dir = standard_exec_prefix;
4481 syscalls_absolute_filename
4482 = (char *) xmalloc (strlen (default_syscalls_dir) + 0
4483 + strlen (target_machine) + 1
4484 + strlen (target_version) + 1
4485 + sizeof (syscalls_filename));
4486 strcpy (syscalls_absolute_filename, default_syscalls_dir);
4487 strcat (syscalls_absolute_filename, target_machine);
4488 strcat (syscalls_absolute_filename, "/");
4489 strcat (syscalls_absolute_filename, target_version);
4490 strcat (syscalls_absolute_filename, "/");
4493 syscalls_len = strlen (syscalls_absolute_filename);
4494 if (*(syscalls_absolute_filename + syscalls_len - 1) != '/')
4496 *(syscalls_absolute_filename + syscalls_len++) = '/';
4497 *(syscalls_absolute_filename + syscalls_len) = '\0';
4499 strcat (syscalls_absolute_filename, syscalls_filename);
4501 /* Call process_aux_info_file in such a way that it does not try to
4502 delete the SYSCALLS aux_info file. */
4504 process_aux_info_file (syscalls_absolute_filename, 1, 1);
4506 #endif /* !defined (UNPROTOIZE) */
4508 /* When we first read in all of the information from the aux_info files
4509 we saved in it descending line number order, because that was likely to
4510 be faster. Now however, we want the chains of def & dec records to
4511 appear in ascending line number order as we get further away from the
4512 file_info record that they hang from. The following line causes all of
4513 these lists to be rearranged into ascending line number order. */
4515 visit_each_hash_node (filename_primary, reverse_def_dec_list);
4519 /* Now do the "real" work. The following line causes each declaration record
4520 to be "visited". For each of these nodes, an attempt is made to match
4521 up the function declaration with a corresponding function definition,
4522 which should have a full prototype-format formals list with it. Once
4523 these match-ups are made, the conversion of the function declarations
4524 to prototype format can be made. */
4526 visit_each_hash_node (function_name_primary, connect_defs_and_decs);
4528 #endif /* !defined (UNPROTOIZE) */
4530 /* Now convert each file that can be converted (and needs to be). */
4532 visit_each_hash_node (filename_primary, edit_file);
4536 /* If we are working in cplusplus mode, try to rename all .c files to .C
4537 files. Don't panic if some of the renames don't work. */
4539 if (cplusplus_flag && !nochange_flag)
4540 visit_each_hash_node (filename_primary, rename_c_file);
4542 #endif /* !defined (UNPROTOIZE) */
4545 static struct option longopts[] =
4547 {"version", 0, 0, 'V'},
4548 {"file_name", 0, 0, 'p'},
4549 {"quiet", 0, 0, 'q'},
4550 {"silent", 0, 0, 'q'},
4551 {"force", 0, 0, 'f'},
4552 {"keep", 0, 0, 'k'},
4553 {"nosave", 0, 0, 'N'},
4554 {"nochange", 0, 0, 'n'},
4555 {"compiler-options", 1, 0, 'c'},
4556 {"exclude", 1, 0, 'x'},
4557 {"directory", 1, 0, 'd'},
4559 {"indent", 1, 0, 'i'},
4561 {"local", 0, 0, 'l'},
4562 {"global", 0, 0, 'g'},
4564 {"syscalls-dir", 1, 0, 'B'},
4576 const char *params = "";
4578 pname = strrchr (argv[0], '/');
4579 pname = pname ? pname+1 : argv[0];
4581 #ifdef HAVE_LC_MESSAGES
4582 setlocale (LC_MESSAGES, "");
4584 (void) bindtextdomain (PACKAGE, localedir);
4585 (void) textdomain (PACKAGE);
4587 cwd_buffer = getpwd ();
4590 notice ("%s: cannot get working directory: %s\n",
4591 pname, xstrerror(errno));
4592 exit (FATAL_EXIT_CODE);
4595 /* By default, convert the files in the current directory. */
4596 directory_list = string_list_cons (cwd_buffer, NULL);
4598 while ((c = getopt_long (argc, argv,
4602 "B:c:Cd:gklnNp:qvVx:",
4604 longopts, &longind)) != EOF)
4606 if (c == 0) /* Long option. */
4607 c = longopts[longind].val;
4611 compiler_file_name = optarg;
4615 = string_list_cons (abspath (NULL, optarg), directory_list);
4618 exclude_list = string_list_cons (optarg, exclude_list);
4648 indent_string = optarg;
4650 #else /* !defined (UNPROTOIZE) */
4661 nondefault_syscalls_dir = optarg;
4663 #endif /* !defined (UNPROTOIZE) */
4669 /* Set up compile_params based on -p and -c options. */
4670 munge_compile_params (params);
4672 n_base_source_files = argc - optind;
4674 /* Now actually make a list of the base source filenames. */
4676 base_source_filenames
4677 = (const char **) xmalloc ((n_base_source_files + 1) * sizeof (char *));
4678 n_base_source_files = 0;
4679 for (; optind < argc; optind++)
4681 const char *path = abspath (NULL, argv[optind]);
4682 int len = strlen (path);
4684 if (path[len-1] == 'c' && path[len-2] == '.')
4685 base_source_filenames[n_base_source_files++] = path;
4688 notice ("%s: input file names must have .c suffixes: %s\n",
4689 pname, shortpath (NULL, path));
4695 /* We are only interested in the very first identifier token in the
4696 definition of `va_list', so if there is more junk after that first
4697 identifier token, delete it from the `varargs_style_indicator'. */
4701 for (cp = varargs_style_indicator;
4702 ISALNUM ((const unsigned char)*cp) || *cp == '_'; cp++)
4705 varargs_style_indicator = savestring (varargs_style_indicator,
4706 cp - varargs_style_indicator);
4708 #endif /* !defined (UNPROTOIZE) */
4715 fprintf (stderr, "%s: %s\n", pname, version_string);
4719 exit (errors ? FATAL_EXIT_CODE : SUCCESS_EXIT_CODE);