1 /* Protoize program - Original version by Ron Guilmette (rfg@segfault.us.com).
2 Copyright (C) 1989, 92-97, 1998 Free Software Foundation, Inc.
4 This file is part of GNU CC.
6 GNU CC is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2, or (at your option)
11 GNU CC is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with GNU CC; see the file COPYING. If not, write to
18 the Free Software Foundation, 59 Temple Place - Suite 330,
19 Boston, MA 02111-1307, USA. */
21 /* Any reasonable C++ compiler should have all of the same features
22 as __STDC__ plus more, so make sure that __STDC__ is defined if
23 __cplusplus is defined. */
25 #if defined(__cplusplus) && !defined(__STDC__)
27 #endif /* defined(__cplusplus) && !defined(__STDC__) */
29 #if defined(__GNUC__) || defined (__GNUG__)
30 #define VOLATILE volatile
43 /* Users are not supposed to use _POSIX_SOURCE to say the
44 system is a POSIX system. That is not what _POSIX_SOURCE means! -- rms */
45 /* If the user asked for POSIX via _POSIX_SOURCE, turn on POSIX code. */
46 #if defined(_POSIX_SOURCE) && !defined(POSIX)
51 #ifdef POSIX /* We should be able to define _POSIX_SOURCE unconditionally,
52 but some systems respond in buggy ways to it,
53 including SunOS 4.1.1. Which we don't classify as POSIX. */
54 /* In case this is a POSIX system with an ANSI C compiler,
55 ask for definition of all POSIX facilities. */
62 #if ! defined (_WIN32) || defined (__CYGWIN32__)
63 #if defined(POSIX) || defined(CONCURRENT)
70 #include "gansidecl.h"
72 /* Some systems like Linux don't declare rindex if _POSIX_SOURCE is declared,
73 but it normally does declare it. This means that configure thinks we don't
74 need to declare it. Favor using strrchr if it is available. */
79 #define strrchr rindex
84 /* Include getopt.h for the sake of getopt_long.
85 We don't need the declaration of getopt, and it could conflict
86 with something from a system header file, so effectively nullify that. */
87 #define getopt getopt_loser
91 extern char *version_string;
93 /* Systems which are compatible only with POSIX 1003.1-1988 (but *not*
94 with POSIX 1003.1-1990), e.g. Ultrix 4.2, might not have
95 const qualifiers in the prototypes in the system include files.
96 Unfortunately, this can lead to GCC issuing lots of warnings for
97 calls to the following functions. To eliminate these warnings we
98 provide the following #defines. */
100 #define my_access(file,flag) access((char *)file, flag)
101 #define my_stat(file,pkt) stat((char *)file, pkt)
103 #define my_link(file1, file2) -1
105 #define my_link(file1, file2) link((char *)file1, (char *)file2)
107 #define my_unlink(file) unlink((char *)file)
108 #define my_open(file, mode, flag) open((char *)file, mode, flag)
109 #define my_chmod(file, mode) chmod((char *)file, mode)
111 extern char *getpwd ();
113 extern char *choose_temp_base PROTO ((void));
114 extern char * my_strerror PROTO ((int));
116 extern int pexecute PROTO ((const char *, char * const *, const char *,
117 const char *, char **, char **, int));
118 extern int pwait PROTO ((int, int *, int));
119 /* Flag arguments to pexecute. */
120 #define PEXECUTE_FIRST 1
121 #define PEXECUTE_LAST 2
122 #define PEXECUTE_SEARCH 4
124 /* Aliases for pointers to void.
125 These were made to facilitate compilation with old brain-dead DEC C
126 compilers which didn't properly grok `void*' types. */
129 typedef void * pointer_type;
130 typedef const void * const_pointer_type;
132 typedef char * pointer_type;
133 typedef char * const_pointer_type;
139 #include <sys/wait.h>
141 #else /* !defined(POSIX) */
144 #define WIFSIGNALED(S) (((S) & 0xff) != 0 && ((S) & 0xff) != 0x7f)
147 #define WTERMSIG(S) ((S) & 0x7f)
150 #define WIFEXITED(S) (((S) & 0xff) == 0)
153 #define WEXITSTATUS(S) (((S) & 0xff00) >> 8)
156 /* Declaring stat or __flsbuf with a prototype
157 causes conflicts with system headers on some systems. */
159 #if 0 /* These conflict with stdio.h on some systems. */
161 extern int fprintf (FILE *, const char *, ...);
162 extern int printf (const char *, ...);
163 extern int open (const char *, int, ...);
168 extern int fflush ();
173 extern int unlink ();
174 extern int access ();
176 #if 0 /* size_t from sys/types.h may fail to match GCC.
177 If so, we would get a warning from this. */
178 extern size_t strlen ()
181 /* Fork is not declared because the declaration caused a conflict
183 #if !(defined (USG) || defined (VMS))
185 #endif /* (defined (USG) || defined (VMS)) */
187 #endif /* !defined (POSIX) */
189 /* Look for these where the `const' qualifier is intentionally cast aside. */
193 /* Define a default place to find the SYSCALLS.X file. */
195 #ifndef STD_PROTO_DIR
196 #define STD_PROTO_DIR "/usr/local/lib"
197 #endif /* !defined (STD_PROTO_DIR) */
199 /* Suffix of aux_info files. */
201 static const char * const aux_info_suffix = ".X";
203 /* String to attach to filenames for saved versions of original files. */
205 static const char * const save_suffix = ".save";
209 /* File name of the file which contains descriptions of standard system
210 routines. Note that we never actually do anything with this file per se,
211 but we do read in its corresponding aux_info file. */
213 static const char syscalls_filename[] = "SYSCALLS.c";
215 /* Default place to find the above file. */
217 static const char * const default_syscalls_dir = STD_PROTO_DIR;
219 /* Variable to hold the complete absolutized filename of the SYSCALLS.c.X
222 static char * syscalls_absolute_filename;
224 #endif /* !defined (UNPROTOIZE) */
226 /* Type of the structure that holds information about macro unexpansions. */
228 struct unexpansion_struct {
229 const char *expanded;
230 const char *contracted;
232 typedef struct unexpansion_struct unexpansion;
234 /* A table of conversions that may need to be made for some (stupid) older
235 operating systems where these types are preprocessor macros rather than
236 typedefs (as they really ought to be).
238 WARNING: The contracted forms must be as small (or smaller) as the
239 expanded forms, or else havoc will ensue. */
241 static const unexpansion unexpansions[] = {
242 { "struct _iobuf", "FILE" },
246 /* The number of "primary" slots in the hash tables for filenames and for
247 function names. This can be as big or as small as you like, except that
248 it must be a power of two. */
250 #define HASH_TABLE_SIZE (1 << 9)
252 /* Bit mask to use when computing hash values. */
254 static const int hash_mask = (HASH_TABLE_SIZE - 1);
256 /* Make a table of default system include directories
257 just as it is done in cccp.c. */
259 #ifndef STANDARD_INCLUDE_DIR
260 #define STANDARD_INCLUDE_DIR "/usr/include"
263 #ifndef LOCAL_INCLUDE_DIR
264 #define LOCAL_INCLUDE_DIR "/usr/local/include"
267 struct default_include { const char *fname;
268 const char *component;
269 int x1, x2; } include_defaults[]
270 #ifdef INCLUDE_DEFAULTS
274 /* Pick up GNU C++ specific include files. */
275 { GPLUSPLUS_INCLUDE_DIR, "G++", 1, 1 },
277 /* This is the dir for fixincludes. Put it just before
278 the files that we fix. */
279 { GCC_INCLUDE_DIR, "GCC", 0, 0 },
280 /* For cross-compilation, this dir name is generated
281 automatically in Makefile.in. */
282 { CROSS_INCLUDE_DIR, 0, 0, 0 },
283 /* This is another place that the target system's headers might be. */
284 { TOOL_INCLUDE_DIR, "BINUTILS", 0, 0 },
285 #else /* not CROSS_COMPILE */
286 /* This should be /use/local/include and should come before
287 the fixincludes-fixed header files. */
288 { LOCAL_INCLUDE_DIR, 0, 0, 1 },
289 /* This is here ahead of GCC_INCLUDE_DIR because assert.h goes here.
290 Likewise, behind LOCAL_INCLUDE_DIR, where glibc puts its assert.h. */
291 { TOOL_INCLUDE_DIR, "BINUTILS", 0, 0 },
292 /* This is the dir for fixincludes. Put it just before
293 the files that we fix. */
294 { GCC_INCLUDE_DIR, "GCC", 0, 0 },
295 /* Some systems have an extra dir of include files. */
296 #ifdef SYSTEM_INCLUDE_DIR
297 { SYSTEM_INCLUDE_DIR, 0, 0, 0 },
299 { STANDARD_INCLUDE_DIR, 0, 0, 0},
300 #endif /* not CROSS_COMPILE */
303 #endif /* no INCLUDE_DEFAULTS */
305 /* Datatype for lists of directories or filenames. */
309 struct string_list *next;
312 /* List of directories in which files should be converted. */
314 struct string_list *directory_list;
316 /* List of file names which should not be converted.
317 A file is excluded if the end of its name, following a /,
318 matches one of the names in this list. */
320 struct string_list *exclude_list;
322 /* The name of the other style of variable-number-of-parameters functions
323 (i.e. the style that we want to leave unconverted because we don't yet
324 know how to convert them to this style. This string is used in warning
327 /* Also define here the string that we can search for in the parameter lists
328 taken from the .X files which will unambiguously indicate that we have
329 found a varargs style function. */
332 static const char * const other_var_style = "stdarg";
333 #else /* !defined (UNPROTOIZE) */
334 static const char * const other_var_style = "varargs";
335 /* Note that this is a string containing the expansion of va_alist.
336 But in `main' we discard all but the first token. */
337 static const char *varargs_style_indicator = STRINGIFY (va_alist);
338 #endif /* !defined (UNPROTOIZE) */
340 /* The following two types are used to create hash tables. In this program,
341 there are two hash tables which are used to store and quickly lookup two
342 different classes of strings. The first type of strings stored in the
343 first hash table are absolute filenames of files which protoize needs to
344 know about. The second type of strings (stored in the second hash table)
345 are function names. It is this second class of strings which really
346 inspired the use of the hash tables, because there may be a lot of them. */
348 typedef struct hash_table_entry_struct hash_table_entry;
350 /* Do some typedefs so that we don't have to write "struct" so often. */
352 typedef struct def_dec_info_struct def_dec_info;
353 typedef struct file_info_struct file_info;
354 typedef struct f_list_chain_item_struct f_list_chain_item;
356 /* In the struct below, note that the "_info" field has two different uses
357 depending on the type of hash table we are in (i.e. either the filenames
358 hash table or the function names hash table). In the filenames hash table
359 the info fields of the entries point to the file_info struct which is
360 associated with each filename (1 per filename). In the function names
361 hash table, the info field points to the head of a singly linked list of
362 def_dec_info entries which are all defs or decs of the function whose
363 name is pointed to by the "symbol" field. Keeping all of the defs/decs
364 for a given function name on a special list specifically for that function
365 name makes it quick and easy to find out all of the important information
366 about a given (named) function. */
368 struct hash_table_entry_struct {
369 hash_table_entry * hash_next; /* -> to secondary entries */
370 const char * symbol; /* -> to the hashed string */
372 const def_dec_info * _ddip;
376 #define ddip _info._ddip
377 #define fip _info._fip
379 /* Define a type specifically for our two hash tables. */
381 typedef hash_table_entry hash_table[HASH_TABLE_SIZE];
383 /* The following struct holds all of the important information about any
384 single filename (e.g. file) which we need to know about. */
386 struct file_info_struct {
387 const hash_table_entry * hash_entry; /* -> to associated hash entry */
388 const def_dec_info * defs_decs; /* -> to chain of defs/decs */
389 time_t mtime; /* Time of last modification. */
392 /* Due to the possibility that functions may return pointers to functions,
393 (which may themselves have their own parameter lists) and due to the
394 fact that returned pointers-to-functions may be of type "pointer-to-
395 function-returning-pointer-to-function" (ad nauseum) we have to keep
396 an entire chain of ANSI style formal parameter lists for each function.
398 Normally, for any given function, there will only be one formals list
399 on the chain, but you never know.
401 Note that the head of each chain of formals lists is pointed to by the
402 `f_list_chain' field of the corresponding def_dec_info record.
404 For any given chain, the item at the head of the chain is the *leftmost*
405 parameter list seen in the actual C language function declaration. If
406 there are other members of the chain, then these are linked in left-to-right
407 order from the head of the chain. */
409 struct f_list_chain_item_struct {
410 const f_list_chain_item * chain_next; /* -> to next item on chain */
411 const char * formals_list; /* -> to formals list string */
414 /* The following struct holds all of the important information about any
415 single function definition or declaration which we need to know about.
416 Note that for unprotoize we don't need to know very much because we
417 never even create records for stuff that we don't intend to convert
418 (like for instance defs and decs which are already in old K&R format
419 and "implicit" function declarations). */
421 struct def_dec_info_struct {
422 const def_dec_info * next_in_file; /* -> to rest of chain for file */
423 file_info * file; /* -> file_info for containing file */
424 int line; /* source line number of def/dec */
425 const char * ansi_decl; /* -> left end of ansi decl */
426 hash_table_entry * hash_entry; /* -> hash entry for function name */
427 unsigned int is_func_def; /* = 0 means this is a declaration */
428 const def_dec_info * next_for_func; /* -> to rest of chain for func name */
429 unsigned int f_list_count; /* count of formals lists we expect */
430 char prototyped; /* = 0 means already prototyped */
432 const f_list_chain_item * f_list_chain; /* -> chain of formals lists */
433 const def_dec_info * definition; /* -> def/dec containing related def */
434 char is_static; /* = 0 means visibility is "extern" */
435 char is_implicit; /* != 0 for implicit func decl's */
436 char written; /* != 0 means written for implicit */
437 #else /* !defined (UNPROTOIZE) */
438 const char * formal_names; /* -> to list of names of formals */
439 const char * formal_decls; /* -> to string of formal declarations */
440 #endif /* !defined (UNPROTOIZE) */
443 /* Pointer to the tail component of the filename by which this program was
444 invoked. Used everywhere in error and warning messages. */
446 static const char *pname;
448 /* Error counter. Will be non-zero if we should give up at the next convenient
451 static int errors = 0;
454 /* ??? These comments should say what the flag mean as well as the options
457 /* File name to use for running gcc. Allows GCC 2 to be named
458 something other than gcc. */
459 static const char *compiler_file_name = "gcc";
461 static int version_flag = 0; /* Print our version number. */
462 static int quiet_flag = 0; /* Don't print messages normally. */
463 static int nochange_flag = 0; /* Don't convert, just say what files
464 we would have converted. */
465 static int nosave_flag = 0; /* Don't save the old version. */
466 static int keep_flag = 0; /* Don't delete the .X files. */
467 static const char ** compile_params = 0; /* Option string for gcc. */
469 static const char *indent_string = " "; /* Indentation for newly
470 inserted parm decls. */
471 #else /* !defined (UNPROTOIZE) */
472 static int local_flag = 0; /* Insert new local decls (when?). */
473 static int global_flag = 0; /* set by -g option */
474 static int cplusplus_flag = 0; /* Rename converted files to *.C. */
475 static const char *nondefault_syscalls_dir = 0; /* Dir to look for
477 #endif /* !defined (UNPROTOIZE) */
479 /* An index into the compile_params array where we should insert the source
480 file name when we are ready to exec the C compiler. A zero value indicates
481 that we have not yet called munge_compile_params. */
483 static int input_file_name_index = 0;
485 /* An index into the compile_params array where we should insert the filename
486 for the aux info file, when we run the C compiler. */
487 static int aux_info_file_name_index = 0;
489 /* Count of command line arguments which were "filename" arguments. */
491 static int n_base_source_files = 0;
493 /* Points to a malloc'ed list of pointers to all of the filenames of base
494 source files which were specified on the command line. */
496 static const char **base_source_filenames;
498 /* Line number of the line within the current aux_info file that we
499 are currently processing. Used for error messages in case the prototypes
500 info file is corrupted somehow. */
502 static int current_aux_info_lineno;
504 /* Pointer to the name of the source file currently being converted. */
506 static const char *convert_filename;
508 /* Pointer to relative root string (taken from aux_info file) which indicates
509 where directory the user was in when he did the compilation step that
510 produced the containing aux_info file. */
512 static const char *invocation_filename;
514 /* Pointer to the base of the input buffer that holds the original text for the
515 source file currently being converted. */
517 static const char *orig_text_base;
519 /* Pointer to the byte just beyond the end of the input buffer that holds the
520 original text for the source file currently being converted. */
522 static const char *orig_text_limit;
524 /* Pointer to the base of the input buffer that holds the cleaned text for the
525 source file currently being converted. */
527 static const char *clean_text_base;
529 /* Pointer to the byte just beyond the end of the input buffer that holds the
530 cleaned text for the source file currently being converted. */
532 static const char *clean_text_limit;
534 /* Pointer to the last byte in the cleaned text buffer that we have already
535 (virtually) copied to the output buffer (or decided to ignore). */
537 static const char * clean_read_ptr;
539 /* Pointer to the base of the output buffer that holds the replacement text
540 for the source file currently being converted. */
542 static char *repl_text_base;
544 /* Pointer to the byte just beyond the end of the output buffer that holds the
545 replacement text for the source file currently being converted. */
547 static char *repl_text_limit;
549 /* Pointer to the last byte which has been stored into the output buffer.
550 The next byte to be stored should be stored just past where this points
553 static char * repl_write_ptr;
555 /* Pointer into the cleaned text buffer for the source file we are currently
556 converting. This points to the first character of the line that we last
557 did a "seek_to_line" to (see below). */
559 static const char *last_known_line_start;
561 /* Number of the line (in the cleaned text buffer) that we last did a
562 "seek_to_line" to. Will be one if we just read a new source file
563 into the cleaned text buffer. */
565 static int last_known_line_number;
567 /* The filenames hash table. */
569 static hash_table filename_primary;
571 /* The function names hash table. */
573 static hash_table function_name_primary;
575 /* The place to keep the recovery address which is used only in cases where
576 we get hopelessly confused by something in the cleaned original text. */
578 static jmp_buf source_confusion_recovery;
580 /* A pointer to the current directory filename (used by abspath). */
582 static char *cwd_buffer;
584 /* A place to save the read pointer until we are sure that an individual
585 attempt at editing will succeed. */
587 static const char * saved_clean_read_ptr;
589 /* A place to save the write pointer until we are sure that an individual
590 attempt at editing will succeed. */
592 static char * saved_repl_write_ptr;
594 /* Forward declaration. */
596 static const char *shortpath ();
608 static char buffer[30];
612 if (e > 0 && e < sys_nerr)
613 return sys_errlist[e];
615 sprintf (buffer, "Unknown error %d", e);
620 /* Allocate some space, but check that the allocation was successful. */
621 /* alloca.c uses this, so don't make it static. */
629 rv = (pointer_type) malloc (byte_count);
632 fprintf (stderr, "\n%s: virtual memory exceeded\n", pname);
633 exit (FATAL_EXIT_CODE);
634 return 0; /* avoid warnings */
640 /* Reallocate some space, but check that the reallocation was successful. */
643 xrealloc (old_space, byte_count)
644 pointer_type old_space;
649 rv = (pointer_type) realloc (old_space, byte_count);
652 fprintf (stderr, "\n%s: virtual memory exceeded\n", pname);
653 exit (FATAL_EXIT_CODE);
654 return 0; /* avoid warnings */
660 /* Deallocate the area pointed to by an arbitrary pointer, but first, strip
661 the `const' qualifier from it and also make sure that the pointer value
666 const_pointer_type p;
669 free ((NONCONST pointer_type) p);
672 /* Make a copy of a string INPUT with size SIZE. */
675 savestring (input, size)
679 char *output = (char *) xmalloc (size + 1);
680 strcpy (output, input);
684 /* Make a copy of the concatenation of INPUT1 and INPUT2. */
687 savestring2 (input1, size1, input2, size2)
693 char *output = (char *) xmalloc (size1 + size2 + 1);
694 strcpy (output, input1);
695 strcpy (&output[size1], input2);
699 /* More 'friendly' abort that prints the line and file.
700 config.h can #define abort fancy_abort if you like that sort of thing. */
705 fprintf (stderr, "%s: internal abort\n", pname);
706 exit (FATAL_EXIT_CODE);
709 /* Make a duplicate of the first N bytes of a given string in a newly
717 char *ret_val = (char *) xmalloc (n + 1);
719 strncpy (ret_val, s, n);
724 /* Return a pointer to the first occurrence of s2 within s1 or NULL if s2
725 does not occur within s1. Assume neither s1 nor s2 are null pointers. */
730 const char *const s2;
738 for (p1 = s1, p2 = s2; (c = *p2); p1++, p2++)
748 /* Read LEN bytes at PTR from descriptor DESC, for file FILENAME,
749 retrying if necessary. Return the actual number of bytes read. */
752 safe_read (desc, ptr, len)
759 int nchars = read (desc, ptr, left);
776 /* Write LEN bytes at PTR to descriptor DESC,
777 retrying if necessary, and treating any real error as fatal. */
780 safe_write (desc, ptr, len, out_fname)
787 int written = write (desc, ptr, len);
790 int errno_val = errno;
792 if (errno_val == EINTR)
795 fprintf (stderr, "%s: error writing file `%s': %s\n",
796 pname, shortpath (NULL, out_fname), my_strerror (errno_val));
804 /* Get setup to recover in case the edit we are about to do goes awry. */
809 saved_clean_read_ptr = clean_read_ptr;
810 saved_repl_write_ptr = repl_write_ptr;
813 /* Call this routine to recover our previous state whenever something looks
814 too confusing in the source code we are trying to edit. */
819 clean_read_ptr = saved_clean_read_ptr;
820 repl_write_ptr = saved_repl_write_ptr;
823 /* Return true if the given character is a valid identifier character. */
829 return (ISALNUM (ch) || (ch == '_') || (ch == '$'));
832 /* Give a message indicating the proper way to invoke this program and then
833 exit with non-zero status. */
839 fprintf (stderr, "%s: usage '%s [ -VqfnkN ] [ -i <istring> ] [ filename ... ]'\n",
841 #else /* !defined (UNPROTOIZE) */
842 fprintf (stderr, "%s: usage '%s [ -VqfnkNlgC ] [ -B <dirname> ] [ filename ... ]'\n",
844 #endif /* !defined (UNPROTOIZE) */
845 exit (FATAL_EXIT_CODE);
848 /* Return true if the given filename (assumed to be an absolute filename)
849 designates a file residing anywhere beneath any one of the "system"
850 include directories. */
853 in_system_include_dir (path)
856 struct default_include *p;
859 abort (); /* Must be an absolutized filename. */
861 for (p = include_defaults; p->fname; p++)
862 if (!strncmp (path, p->fname, strlen (p->fname))
863 && path[strlen (p->fname)] == '/')
869 /* Return true if the given filename designates a file that the user has
870 read access to and for which the user has write access to the containing
874 file_could_be_converted (const char *path)
876 char *const dir_name = (char *) alloca (strlen (path) + 1);
878 if (my_access (path, R_OK))
882 char *dir_last_slash;
884 strcpy (dir_name, path);
885 dir_last_slash = strrchr (dir_name, '/');
887 *dir_last_slash = '\0';
889 abort (); /* Should have been an absolutized filename. */
892 if (my_access (path, W_OK))
898 /* Return true if the given filename designates a file that we are allowed
899 to modify. Files which we should not attempt to modify are (a) "system"
900 include files, and (b) files which the user doesn't have write access to,
901 and (c) files which reside in directories which the user doesn't have
902 write access to. Unless requested to be quiet, give warnings about
903 files that we will not try to convert for one reason or another. An
904 exception is made for "system" include files, which we never try to
905 convert and for which we don't issue the usual warnings. */
908 file_normally_convertible (const char *path)
910 char *const dir_name = alloca (strlen (path) + 1);
912 if (in_system_include_dir (path))
916 char *dir_last_slash;
918 strcpy (dir_name, path);
919 dir_last_slash = strrchr (dir_name, '/');
921 *dir_last_slash = '\0';
923 abort (); /* Should have been an absolutized filename. */
926 if (my_access (path, R_OK))
929 fprintf (stderr, "%s: warning: no read access for file `%s'\n",
930 pname, shortpath (NULL, path));
934 if (my_access (path, W_OK))
937 fprintf (stderr, "%s: warning: no write access for file `%s'\n",
938 pname, shortpath (NULL, path));
942 if (my_access (dir_name, W_OK))
945 fprintf (stderr, "%s: warning: no write access for dir containing `%s'\n",
946 pname, shortpath (NULL, path));
956 /* Return true if the given file_info struct refers to the special SYSCALLS.c.X
957 file. Return false otherwise. */
960 is_syscalls_file (fi_p)
961 const file_info *fi_p;
963 char const *f = fi_p->hash_entry->symbol;
964 size_t fl = strlen (f), sysl = sizeof (syscalls_filename) - 1;
965 return sysl <= fl && strcmp (f + fl - sysl, syscalls_filename) == 0;
968 #endif /* !defined (UNPROTOIZE) */
970 /* Check to see if this file will need to have anything done to it on this
971 run. If there is nothing in the given file which both needs conversion
972 and for which we have the necessary stuff to do the conversion, return
973 false. Otherwise, return true.
975 Note that (for protoize) it is only valid to call this function *after*
976 the connections between declarations and definitions have all been made
977 by connect_defs_and_decs. */
980 needs_to_be_converted (file_p)
981 const file_info *file_p;
983 const def_dec_info *ddp;
987 if (is_syscalls_file (file_p))
990 #endif /* !defined (UNPROTOIZE) */
992 for (ddp = file_p->defs_decs; ddp; ddp = ddp->next_in_file)
998 /* ... and if we a protoizing and this function is in old style ... */
1000 /* ... and if this a definition or is a decl with an associated def ... */
1001 && (ddp->is_func_def || (!ddp->is_func_def && ddp->definition))
1003 #else /* defined (UNPROTOIZE) */
1005 /* ... and if we are unprotoizing and this function is in new style ... */
1008 #endif /* defined (UNPROTOIZE) */
1010 /* ... then the containing file needs converting. */
1015 /* Return 1 if the file name NAME is in a directory
1016 that should be converted. */
1019 directory_specified_p (name)
1022 struct string_list *p;
1024 for (p = directory_list; p; p = p->next)
1025 if (!strncmp (name, p->name, strlen (p->name))
1026 && name[strlen (p->name)] == '/')
1028 const char *q = name + strlen (p->name) + 1;
1030 /* If there are more slashes, it's in a subdir, so
1031 this match doesn't count. */
1043 /* Return 1 if the file named NAME should be excluded from conversion. */
1046 file_excluded_p (name)
1049 struct string_list *p;
1050 int len = strlen (name);
1052 for (p = exclude_list; p; p = p->next)
1053 if (!strcmp (name + len - strlen (p->name), p->name)
1054 && name[len - strlen (p->name) - 1] == '/')
1060 /* Construct a new element of a string_list.
1061 STRING is the new element value, and REST holds the remaining elements. */
1063 static struct string_list *
1064 string_list_cons (string, rest)
1066 struct string_list *rest;
1068 struct string_list *temp
1069 = (struct string_list *) xmalloc (sizeof (struct string_list));
1072 temp->name = string;
1076 /* ??? The GNU convention for mentioning function args in its comments
1077 is to capitalize them. So change "hash_tab_p" to HASH_TAB_P below.
1078 Likewise for all the other functions. */
1080 /* Given a hash table, apply some function to each node in the table. The
1081 table to traverse is given as the "hash_tab_p" argument, and the
1082 function to be applied to each node in the table is given as "func"
1086 visit_each_hash_node (hash_tab_p, func)
1087 const hash_table_entry *hash_tab_p;
1090 const hash_table_entry *primary;
1092 for (primary = hash_tab_p; primary < &hash_tab_p[HASH_TABLE_SIZE]; primary++)
1093 if (primary->symbol)
1095 hash_table_entry *second;
1098 for (second = primary->hash_next; second; second = second->hash_next)
1103 /* Initialize all of the fields of a new hash table entry, pointed
1104 to by the "p" parameter. Note that the space to hold the entry
1105 is assumed to have already been allocated before this routine is
1108 static hash_table_entry *
1110 hash_table_entry *p;
1113 p->hash_next = NULL;
1114 p->symbol = savestring (s, strlen (s));
1120 /* Look for a particular function name or filename in the particular
1121 hash table indicated by "hash_tab_p". If the name is not in the
1122 given hash table, add it. Either way, return a pointer to the
1123 hash table entry for the given name. */
1125 static hash_table_entry *
1126 lookup (hash_tab_p, search_symbol)
1127 hash_table_entry *hash_tab_p;
1128 const char *search_symbol;
1131 const char *search_symbol_char_p = search_symbol;
1132 hash_table_entry *p;
1134 while (*search_symbol_char_p)
1135 hash_value += *search_symbol_char_p++;
1136 hash_value &= hash_mask;
1137 p = &hash_tab_p[hash_value];
1139 return add_symbol (p, search_symbol);
1140 if (!strcmp (p->symbol, search_symbol))
1142 while (p->hash_next)
1145 if (!strcmp (p->symbol, search_symbol))
1148 p->hash_next = (hash_table_entry *) xmalloc (sizeof (hash_table_entry));
1150 return add_symbol (p, search_symbol);
1153 /* Throw a def/dec record on the junk heap.
1155 Also, since we are not using this record anymore, free up all of the
1156 stuff it pointed to. */
1162 xfree (p->ansi_decl);
1166 const f_list_chain_item * curr;
1167 const f_list_chain_item * next;
1169 for (curr = p->f_list_chain; curr; curr = next)
1171 next = curr->chain_next;
1175 #endif /* !defined (UNPROTOIZE) */
1180 /* Unexpand as many macro symbol as we can find.
1182 If the given line must be unexpanded, make a copy of it in the heap and
1183 return a pointer to the unexpanded copy. Otherwise return NULL. */
1186 unexpand_if_needed (aux_info_line)
1187 const char *aux_info_line;
1189 static char *line_buf = 0;
1190 static int line_buf_size = 0;
1191 const unexpansion *unexp_p;
1192 int got_unexpanded = 0;
1194 char *copy_p = line_buf;
1198 line_buf_size = 1024;
1199 line_buf = (char *) xmalloc (line_buf_size);
1204 /* Make a copy of the input string in line_buf, expanding as necessary. */
1206 for (s = aux_info_line; *s != '\n'; )
1208 for (unexp_p = unexpansions; unexp_p->expanded; unexp_p++)
1210 const char *in_p = unexp_p->expanded;
1211 size_t len = strlen (in_p);
1213 if (*s == *in_p && !strncmp (s, in_p, len) && !is_id_char (s[len]))
1215 int size = strlen (unexp_p->contracted);
1217 if (copy_p + size - line_buf >= line_buf_size)
1219 int offset = copy_p - line_buf;
1221 line_buf_size += size;
1222 line_buf = (char *) xrealloc (line_buf, line_buf_size);
1223 copy_p = line_buf + offset;
1225 strcpy (copy_p, unexp_p->contracted);
1228 /* Assume the there will not be another replacement required
1229 within the text just replaced. */
1232 goto continue_outer;
1235 if (copy_p - line_buf == line_buf_size)
1237 int offset = copy_p - line_buf;
1239 line_buf = (char *) xrealloc (line_buf, line_buf_size);
1240 copy_p = line_buf + offset;
1245 if (copy_p + 2 - line_buf >= line_buf_size)
1247 int offset = copy_p - line_buf;
1249 line_buf = (char *) xrealloc (line_buf, line_buf_size);
1250 copy_p = line_buf + offset;
1255 return (got_unexpanded ? savestring (line_buf, copy_p - line_buf) : 0);
1258 /* Return the absolutized filename for the given relative
1259 filename. Note that if that filename is already absolute, it may
1260 still be returned in a modified form because this routine also
1261 eliminates redundant slashes and single dots and eliminates double
1262 dots to get a shortest possible filename from the given input
1263 filename. The absolutization of relative filenames is made by
1264 assuming that the given filename is to be taken as relative to
1265 the first argument (cwd) or to the current directory if cwd is
1269 abspath (cwd, rel_filename)
1271 const char *rel_filename;
1273 /* Setup the current working directory as needed. */
1274 const char *cwd2 = (cwd) ? cwd : cwd_buffer;
1275 char *const abs_buffer
1276 = (char *) alloca (strlen (cwd2) + strlen (rel_filename) + 2);
1277 char *endp = abs_buffer;
1280 /* Copy the filename (possibly preceded by the current working
1281 directory name) into the absolutization buffer. */
1286 if (rel_filename[0] != '/')
1289 while ((*endp++ = *src_p++))
1291 *(endp-1) = '/'; /* overwrite null */
1293 src_p = rel_filename;
1294 while ((*endp++ = *src_p++))
1298 /* Now make a copy of abs_buffer into abs_buffer, shortening the
1299 filename (by taking out slashes and dots) as we go. */
1301 outp = inp = abs_buffer;
1302 *outp++ = *inp++; /* copy first slash */
1305 *outp++ = *inp++; /* copy second slash */
1311 else if (inp[0] == '/' && outp[-1] == '/')
1316 else if (inp[0] == '.' && outp[-1] == '/')
1320 else if (inp[1] == '/')
1325 else if ((inp[1] == '.') && (inp[2] == 0 || inp[2] == '/'))
1327 inp += (inp[2] == '/') ? 3 : 2;
1329 while (outp >= abs_buffer && *outp != '/')
1331 if (outp < abs_buffer)
1333 /* Catch cases like /.. where we try to backup to a
1334 point above the absolute root of the logical file
1337 fprintf (stderr, "%s: invalid file name: %s\n",
1338 pname, rel_filename);
1339 exit (FATAL_EXIT_CODE);
1348 /* On exit, make sure that there is a trailing null, and make sure that
1349 the last character of the returned string is *not* a slash. */
1352 if (outp[-1] == '/')
1355 /* Make a copy (in the heap) of the stuff left in the absolutization
1356 buffer and return a pointer to the copy. */
1358 return savestring (abs_buffer, outp - abs_buffer);
1361 /* Given a filename (and possibly a directory name from which the filename
1362 is relative) return a string which is the shortest possible
1363 equivalent for the corresponding full (absolutized) filename. The
1364 shortest possible equivalent may be constructed by converting the
1365 absolutized filename to be a relative filename (i.e. relative to
1366 the actual current working directory). However if a relative filename
1367 is longer, then the full absolute filename is returned.
1371 Note that "simple-minded" conversion of any given type of filename (either
1372 relative or absolute) may not result in a valid equivalent filename if any
1373 subpart of the original filename is actually a symbolic link. */
1376 shortpath (cwd, filename)
1378 const char *filename;
1382 char *cwd_p = cwd_buffer;
1384 int unmatched_slash_count = 0;
1385 size_t filename_len = strlen (filename);
1387 path_p = abspath (cwd, filename);
1388 rel_buf_p = rel_buffer = (char *) xmalloc (filename_len);
1390 while (*cwd_p && (*cwd_p == *path_p))
1395 if (!*cwd_p && (!*path_p || *path_p == '/')) /* whole pwd matched */
1397 if (!*path_p) /* input *is* the current path! */
1408 while (*cwd_p != '/') /* backup to last slash */
1415 unmatched_slash_count++;
1418 /* Find out how many directory levels in cwd were *not* matched. */
1420 if (*cwd_p++ == '/')
1421 unmatched_slash_count++;
1423 /* Now we know how long the "short name" will be.
1424 Reject it if longer than the input. */
1425 if (unmatched_slash_count * 3 + strlen (path_p) >= filename_len)
1428 /* For each of them, put a `../' at the beginning of the short name. */
1429 while (unmatched_slash_count--)
1431 /* Give up if the result gets to be longer
1432 than the absolute path name. */
1433 if (rel_buffer + filename_len <= rel_buf_p + 3)
1440 /* Then tack on the unmatched part of the desired file's name. */
1443 if (rel_buffer + filename_len <= rel_buf_p)
1446 while ((*rel_buf_p++ = *path_p++));
1449 if (*(rel_buf_p-1) == '/')
1450 *--rel_buf_p = '\0';
1455 /* Lookup the given filename in the hash table for filenames. If it is a
1456 new one, then the hash table info pointer will be null. In this case,
1457 we create a new file_info record to go with the filename, and we initialize
1458 that record with some reasonable values. */
1460 /* FILENAME was const, but that causes a warning on AIX when calling stat.
1461 That is probably a bug in AIX, but might as well avoid the warning. */
1464 find_file (filename, do_not_stat)
1468 hash_table_entry *hash_entry_p;
1470 hash_entry_p = lookup (filename_primary, filename);
1471 if (hash_entry_p->fip)
1472 return hash_entry_p->fip;
1475 struct stat stat_buf;
1476 file_info *file_p = (file_info *) xmalloc (sizeof (file_info));
1478 /* If we cannot get status on any given source file, give a warning
1479 and then just set its time of last modification to infinity. */
1482 stat_buf.st_mtime = (time_t) 0;
1485 if (my_stat (filename, &stat_buf) == -1)
1487 int errno_val = errno;
1488 fprintf (stderr, "%s: %s: can't get status: %s\n",
1489 pname, shortpath (NULL, filename),
1490 my_strerror (errno_val));
1491 stat_buf.st_mtime = (time_t) -1;
1495 hash_entry_p->fip = file_p;
1496 file_p->hash_entry = hash_entry_p;
1497 file_p->defs_decs = NULL;
1498 file_p->mtime = stat_buf.st_mtime;
1503 /* Generate a fatal error because some part of the aux_info file is
1507 aux_info_corrupted ()
1509 fprintf (stderr, "\n%s: fatal error: aux info file corrupted at line %d\n",
1510 pname, current_aux_info_lineno);
1511 exit (FATAL_EXIT_CODE);
1514 /* ??? This comment is vague. Say what the condition is for. */
1515 /* Check to see that a condition is true. This is kind of like an assert. */
1518 check_aux_info (cond)
1522 aux_info_corrupted ();
1525 /* Given a pointer to the closing right parenthesis for a particular formals
1526 list (in an aux_info file) find the corresponding left parenthesis and
1527 return a pointer to it. */
1530 find_corresponding_lparen (p)
1536 for (paren_depth = 1, q = p-1; paren_depth; q--)
1551 /* Given a line from an aux info file, and a time at which the aux info
1552 file it came from was created, check to see if the item described in
1553 the line comes from a file which has been modified since the aux info
1554 file was created. If so, return non-zero, else return zero. */
1557 referenced_file_is_newer (l, aux_info_mtime)
1559 time_t aux_info_mtime;
1565 check_aux_info (l[0] == '/');
1566 check_aux_info (l[1] == '*');
1567 check_aux_info (l[2] == ' ');
1570 const char *filename_start = p = l + 3;
1574 filename = (char *) alloca ((size_t) (p - filename_start) + 1);
1575 strncpy (filename, filename_start, (size_t) (p - filename_start));
1576 filename[p-filename_start] = '\0';
1579 /* Call find_file to find the file_info record associated with the file
1580 which contained this particular def or dec item. Note that this call
1581 may cause a new file_info record to be created if this is the first time
1582 that we have ever known about this particular file. */
1584 fi_p = find_file (abspath (invocation_filename, filename), 0);
1586 return (fi_p->mtime > aux_info_mtime);
1589 /* Given a line of info from the aux_info file, create a new
1590 def_dec_info record to remember all of the important information about
1591 a function definition or declaration.
1593 Link this record onto the list of such records for the particular file in
1594 which it occurred in proper (descending) line number order (for now).
1596 If there is an identical record already on the list for the file, throw
1597 this one away. Doing so takes care of the (useless and troublesome)
1598 duplicates which are bound to crop up due to multiple inclusions of any
1599 given individual header file.
1601 Finally, link the new def_dec record onto the list of such records
1602 pertaining to this particular function name. */
1605 save_def_or_dec (l, is_syscalls)
1610 const char *semicolon_p;
1611 def_dec_info *def_dec_p = (def_dec_info *) xmalloc (sizeof (def_dec_info));
1614 def_dec_p->written = 0;
1615 #endif /* !defined (UNPROTOIZE) */
1617 /* Start processing the line by picking off 5 pieces of information from
1618 the left hand end of the line. These are filename, line number,
1619 new/old/implicit flag (new = ANSI prototype format), definition or
1620 declaration flag, and extern/static flag). */
1622 check_aux_info (l[0] == '/');
1623 check_aux_info (l[1] == '*');
1624 check_aux_info (l[2] == ' ');
1627 const char *filename_start = p = l + 3;
1632 filename = (char *) alloca ((size_t) (p - filename_start) + 1);
1633 strncpy (filename, filename_start, (size_t) (p - filename_start));
1634 filename[p-filename_start] = '\0';
1636 /* Call find_file to find the file_info record associated with the file
1637 which contained this particular def or dec item. Note that this call
1638 may cause a new file_info record to be created if this is the first time
1639 that we have ever known about this particular file.
1641 Note that we started out by forcing all of the base source file names
1642 (i.e. the names of the aux_info files with the .X stripped off) into the
1643 filenames hash table, and we simultaneously setup file_info records for
1644 all of these base file names (even if they may be useless later).
1645 The file_info records for all of these "base" file names (properly)
1646 act as file_info records for the "original" (i.e. un-included) files
1647 which were submitted to gcc for compilation (when the -aux-info
1648 option was used). */
1650 def_dec_p->file = find_file (abspath (invocation_filename, filename), is_syscalls);
1654 const char *line_number_start = ++p;
1655 char line_number[10];
1659 strncpy (line_number, line_number_start, (size_t) (p - line_number_start));
1660 line_number[p-line_number_start] = '\0';
1661 def_dec_p->line = atoi (line_number);
1664 /* Check that this record describes a new-style, old-style, or implicit
1665 definition or declaration. */
1667 p++; /* Skip over the `:'. */
1668 check_aux_info ((*p == 'N') || (*p == 'O') || (*p == 'I'));
1670 /* Is this a new style (ANSI prototyped) definition or declaration? */
1672 def_dec_p->prototyped = (*p == 'N');
1676 /* Is this an implicit declaration? */
1678 def_dec_p->is_implicit = (*p == 'I');
1680 #endif /* !defined (UNPROTOIZE) */
1684 check_aux_info ((*p == 'C') || (*p == 'F'));
1686 /* Is this item a function definition (F) or a declaration (C). Note that
1687 we treat item taken from the syscalls file as though they were function
1688 definitions regardless of what the stuff in the file says. */
1690 def_dec_p->is_func_def = ((*p++ == 'F') || is_syscalls);
1693 def_dec_p->definition = 0; /* Fill this in later if protoizing. */
1694 #endif /* !defined (UNPROTOIZE) */
1696 check_aux_info (*p++ == ' ');
1697 check_aux_info (*p++ == '*');
1698 check_aux_info (*p++ == '/');
1699 check_aux_info (*p++ == ' ');
1702 check_aux_info ((!strncmp (p, "static", 6)) || (!strncmp (p, "extern", 6)));
1703 #else /* !defined (UNPROTOIZE) */
1704 if (!strncmp (p, "static", 6))
1705 def_dec_p->is_static = -1;
1706 else if (!strncmp (p, "extern", 6))
1707 def_dec_p->is_static = 0;
1709 check_aux_info (0); /* Didn't find either `extern' or `static'. */
1710 #endif /* !defined (UNPROTOIZE) */
1713 const char *ansi_start = p;
1715 p += 6; /* Pass over the "static" or "extern". */
1717 /* We are now past the initial stuff. Search forward from here to find
1718 the terminating semicolon that should immediately follow the entire
1719 ANSI format function declaration. */
1726 /* Make a copy of the ansi declaration part of the line from the aux_info
1729 def_dec_p->ansi_decl
1730 = dupnstr (ansi_start, (size_t) ((semicolon_p+1) - ansi_start));
1732 /* Backup and point at the final right paren of the final argument list. */
1737 def_dec_p->f_list_chain = NULL;
1738 #endif /* !defined (UNPROTOIZE) */
1740 while (p != ansi_start && (p[-1] == ' ' || p[-1] == '\t')) p--;
1743 free_def_dec (def_dec_p);
1748 /* Now isolate a whole set of formal argument lists, one-by-one. Normally,
1749 there will only be one list to isolate, but there could be more. */
1751 def_dec_p->f_list_count = 0;
1755 const char *left_paren_p = find_corresponding_lparen (p);
1758 f_list_chain_item *cip
1759 = (f_list_chain_item *) xmalloc (sizeof (f_list_chain_item));
1762 = dupnstr (left_paren_p + 1, (size_t) (p - (left_paren_p+1)));
1764 /* Add the new chain item at the head of the current list. */
1766 cip->chain_next = def_dec_p->f_list_chain;
1767 def_dec_p->f_list_chain = cip;
1769 #endif /* !defined (UNPROTOIZE) */
1770 def_dec_p->f_list_count++;
1772 p = left_paren_p - 2;
1774 /* p must now point either to another right paren, or to the last
1775 character of the name of the function that was declared/defined.
1776 If p points to another right paren, then this indicates that we
1777 are dealing with multiple formals lists. In that case, there
1778 really should be another right paren preceding this right paren. */
1783 check_aux_info (*--p == ')');
1788 const char *past_fn = p + 1;
1790 check_aux_info (*past_fn == ' ');
1792 /* Scan leftwards over the identifier that names the function. */
1794 while (is_id_char (*p))
1798 /* p now points to the leftmost character of the function name. */
1801 char *fn_string = (char *) alloca (past_fn - p + 1);
1803 strncpy (fn_string, p, (size_t) (past_fn - p));
1804 fn_string[past_fn-p] = '\0';
1805 def_dec_p->hash_entry = lookup (function_name_primary, fn_string);
1809 /* Look at all of the defs and decs for this function name that we have
1810 collected so far. If there is already one which is at the same
1811 line number in the same file, then we can discard this new def_dec_info
1814 As an extra assurance that any such pair of (nominally) identical
1815 function declarations are in fact identical, we also compare the
1816 ansi_decl parts of the lines from the aux_info files just to be on
1819 This comparison will fail if (for instance) the user was playing
1820 messy games with the preprocessor which ultimately causes one
1821 function declaration in one header file to look differently when
1822 that file is included by two (or more) other files. */
1825 const def_dec_info *other;
1827 for (other = def_dec_p->hash_entry->ddip; other; other = other->next_for_func)
1829 if (def_dec_p->line == other->line && def_dec_p->file == other->file)
1831 if (strcmp (def_dec_p->ansi_decl, other->ansi_decl))
1833 fprintf (stderr, "%s:%d: declaration of function `%s' takes different forms\n",
1834 def_dec_p->file->hash_entry->symbol,
1836 def_dec_p->hash_entry->symbol);
1837 exit (FATAL_EXIT_CODE);
1839 free_def_dec (def_dec_p);
1847 /* If we are doing unprotoizing, we must now setup the pointers that will
1848 point to the K&R name list and to the K&R argument declarations list.
1850 Note that if this is only a function declaration, then we should not
1851 expect to find any K&R style formals list following the ANSI-style
1852 formals list. This is because GCC knows that such information is
1853 useless in the case of function declarations (function definitions
1854 are a different story however).
1856 Since we are unprotoizing, we don't need any such lists anyway.
1857 All we plan to do is to delete all characters between ()'s in any
1860 def_dec_p->formal_names = NULL;
1861 def_dec_p->formal_decls = NULL;
1863 if (def_dec_p->is_func_def)
1866 check_aux_info (*++p == ' ');
1867 check_aux_info (*++p == '/');
1868 check_aux_info (*++p == '*');
1869 check_aux_info (*++p == ' ');
1870 check_aux_info (*++p == '(');
1873 const char *kr_names_start = ++p; /* Point just inside '('. */
1877 p--; /* point to closing right paren */
1879 /* Make a copy of the K&R parameter names list. */
1881 def_dec_p->formal_names
1882 = dupnstr (kr_names_start, (size_t) (p - kr_names_start));
1885 check_aux_info (*++p == ' ');
1888 /* p now points to the first character of the K&R style declarations
1889 list (if there is one) or to the star-slash combination that ends
1890 the comment in which such lists get embedded. */
1892 /* Make a copy of the K&R formal decls list and set the def_dec record
1895 if (*p == '*') /* Are there no K&R declarations? */
1897 check_aux_info (*++p == '/');
1898 def_dec_p->formal_decls = "";
1902 const char *kr_decls_start = p;
1904 while (p[0] != '*' || p[1] != '/')
1908 check_aux_info (*p == ' ');
1910 def_dec_p->formal_decls
1911 = dupnstr (kr_decls_start, (size_t) (p - kr_decls_start));
1914 /* Handle a special case. If we have a function definition marked as
1915 being in "old" style, and if its formal names list is empty, then
1916 it may actually have the string "void" in its real formals list
1917 in the original source code. Just to make sure, we will get setup
1918 to convert such things anyway.
1920 This kludge only needs to be here because of an insurmountable
1921 problem with generating .X files. */
1923 if (!def_dec_p->prototyped && !*def_dec_p->formal_names)
1924 def_dec_p->prototyped = 1;
1927 /* Since we are unprotoizing, if this item is already in old (K&R) style,
1928 we can just ignore it. If that is true, throw away the itme now. */
1930 if (!def_dec_p->prototyped)
1932 free_def_dec (def_dec_p);
1936 #endif /* defined (UNPROTOIZE) */
1938 /* Add this record to the head of the list of records pertaining to this
1939 particular function name. */
1941 def_dec_p->next_for_func = def_dec_p->hash_entry->ddip;
1942 def_dec_p->hash_entry->ddip = def_dec_p;
1944 /* Add this new def_dec_info record to the sorted list of def_dec_info
1945 records for this file. Note that we don't have to worry about duplicates
1946 (caused by multiple inclusions of header files) here because we have
1947 already eliminated duplicates above. */
1949 if (!def_dec_p->file->defs_decs)
1951 def_dec_p->file->defs_decs = def_dec_p;
1952 def_dec_p->next_in_file = NULL;
1956 int line = def_dec_p->line;
1957 const def_dec_info *prev = NULL;
1958 const def_dec_info *curr = def_dec_p->file->defs_decs;
1959 const def_dec_info *next = curr->next_in_file;
1961 while (next && (line < curr->line))
1965 next = next->next_in_file;
1967 if (line >= curr->line)
1969 def_dec_p->next_in_file = curr;
1971 ((NONCONST def_dec_info *) prev)->next_in_file = def_dec_p;
1973 def_dec_p->file->defs_decs = def_dec_p;
1975 else /* assert (next == NULL); */
1977 ((NONCONST def_dec_info *) curr)->next_in_file = def_dec_p;
1978 /* assert (next == NULL); */
1979 def_dec_p->next_in_file = next;
1984 /* Set up the vector COMPILE_PARAMS which is the argument list for running GCC.
1985 Also set input_file_name_index and aux_info_file_name_index
1986 to the indices of the slots where the file names should go. */
1988 /* We initialize the vector by removing -g, -O, -S, -c, and -o options,
1989 and adding '-aux-info AUXFILE -S -o /dev/null INFILE' at the end. */
1992 munge_compile_params (params_list)
1993 const char *params_list;
1995 /* Build up the contents in a temporary vector
1996 that is so big that to has to be big enough. */
1997 const char **temp_params
1998 = (const char **) alloca ((strlen (params_list) + 8) * sizeof (char *));
1999 int param_count = 0;
2002 temp_params[param_count++] = compiler_file_name;
2005 while (ISSPACE (*params_list))
2009 param = params_list;
2010 while (*params_list && !ISSPACE (*params_list))
2012 if (param[0] != '-')
2013 temp_params[param_count++]
2014 = dupnstr (param, (size_t) (params_list - param));
2023 break; /* Don't copy these. */
2025 while (ISSPACE (*params_list))
2027 while (*params_list && !ISSPACE (*params_list))
2031 temp_params[param_count++]
2032 = dupnstr (param, (size_t) (params_list - param));
2038 temp_params[param_count++] = "-aux-info";
2040 /* Leave room for the aux-info file name argument. */
2041 aux_info_file_name_index = param_count;
2042 temp_params[param_count++] = NULL;
2044 temp_params[param_count++] = "-S";
2045 temp_params[param_count++] = "-o";
2046 temp_params[param_count++] = "/dev/null";
2048 /* Leave room for the input file name argument. */
2049 input_file_name_index = param_count;
2050 temp_params[param_count++] = NULL;
2051 /* Terminate the list. */
2052 temp_params[param_count++] = NULL;
2054 /* Make a copy of the compile_params in heap space. */
2057 = (const char **) xmalloc (sizeof (char *) * (param_count+1));
2058 memcpy (compile_params, temp_params, sizeof (char *) * param_count);
2061 /* Do a recompilation for the express purpose of generating a new aux_info
2062 file to go with a specific base source file.
2064 The result is a boolean indicating success. */
2067 gen_aux_info_file (base_filename)
2068 const char *base_filename;
2070 if (!input_file_name_index)
2071 munge_compile_params ("");
2073 /* Store the full source file name in the argument vector. */
2074 compile_params[input_file_name_index] = shortpath (NULL, base_filename);
2075 /* Add .X to source file name to get aux-info file name. */
2076 compile_params[aux_info_file_name_index]
2077 = savestring2 (compile_params[input_file_name_index],
2078 strlen (compile_params[input_file_name_index]),
2083 fprintf (stderr, "%s: compiling `%s'\n",
2084 pname, compile_params[input_file_name_index]);
2087 char *errmsg_fmt, *errmsg_arg;
2088 int wait_status, pid;
2089 char *temp_base = choose_temp_base ();
2091 pid = pexecute (compile_params[0], (char * const *) compile_params,
2092 pname, temp_base, &errmsg_fmt, &errmsg_arg,
2093 PEXECUTE_FIRST | PEXECUTE_LAST | PEXECUTE_SEARCH);
2097 int errno_val = errno;
2098 fprintf (stderr, "%s: ", pname);
2099 fprintf (stderr, errmsg_fmt, errmsg_arg);
2100 fprintf (stderr, ": %s\n", my_strerror (errno_val));
2104 pid = pwait (pid, &wait_status, 0);
2107 fprintf (stderr, "%s: wait: %s\n", pname, my_strerror (errno));
2110 if (WIFSIGNALED (wait_status))
2112 fprintf (stderr, "%s: subprocess got fatal signal %d\n",
2113 pname, WTERMSIG (wait_status));
2116 if (WIFEXITED (wait_status))
2118 if (WEXITSTATUS (wait_status) != 0)
2120 fprintf (stderr, "%s: %s exited with status %d\n",
2121 pname, compile_params[0], WEXITSTATUS (wait_status));
2130 /* Read in all of the information contained in a single aux_info file.
2131 Save all of the important stuff for later. */
2134 process_aux_info_file (base_source_filename, keep_it, is_syscalls)
2135 const char *base_source_filename;
2139 size_t base_len = strlen (base_source_filename);
2140 char * aux_info_filename
2141 = (char *) alloca (base_len + strlen (aux_info_suffix) + 1);
2142 char *aux_info_base;
2143 char *aux_info_limit;
2144 char *aux_info_relocated_name;
2145 const char *aux_info_second_line;
2146 time_t aux_info_mtime;
2147 size_t aux_info_size;
2150 /* Construct the aux_info filename from the base source filename. */
2152 strcpy (aux_info_filename, base_source_filename);
2153 strcat (aux_info_filename, aux_info_suffix);
2155 /* Check that the aux_info file exists and is readable. If it does not
2156 exist, try to create it (once only). */
2158 /* If file doesn't exist, set must_create.
2159 Likewise if it exists and we can read it but it is obsolete.
2160 Otherwise, report an error. */
2163 /* Come here with must_create set to 1 if file is out of date. */
2166 if (my_access (aux_info_filename, R_OK) == -1)
2168 if (errno == ENOENT)
2172 fprintf (stderr, "%s: warning: missing SYSCALLS file `%s'\n",
2173 pname, aux_info_filename);
2180 int errno_val = errno;
2181 fprintf (stderr, "%s: can't read aux info file `%s': %s\n",
2182 pname, shortpath (NULL, aux_info_filename),
2183 my_strerror (errno_val));
2188 #if 0 /* There is code farther down to take care of this. */
2192 stat (aux_info_file_name, &s1);
2193 stat (base_source_file_name, &s2);
2194 if (s2.st_mtime > s1.st_mtime)
2199 /* If we need a .X file, create it, and verify we can read it. */
2202 if (!gen_aux_info_file (base_source_filename))
2207 if (my_access (aux_info_filename, R_OK) == -1)
2209 int errno_val = errno;
2210 fprintf (stderr, "%s: can't read aux info file `%s': %s\n",
2211 pname, shortpath (NULL, aux_info_filename),
2212 my_strerror (errno_val));
2219 struct stat stat_buf;
2221 /* Get some status information about this aux_info file. */
2223 if (my_stat (aux_info_filename, &stat_buf) == -1)
2225 int errno_val = errno;
2226 fprintf (stderr, "%s: can't get status of aux info file `%s': %s\n",
2227 pname, shortpath (NULL, aux_info_filename),
2228 my_strerror (errno_val));
2233 /* Check on whether or not this aux_info file is zero length. If it is,
2234 then just ignore it and return. */
2236 if ((aux_info_size = stat_buf.st_size) == 0)
2239 /* Get the date/time of last modification for this aux_info file and
2240 remember it. We will have to check that any source files that it
2241 contains information about are at least this old or older. */
2243 aux_info_mtime = stat_buf.st_mtime;
2247 /* Compare mod time with the .c file; update .X file if obsolete.
2248 The code later on can fail to check the .c file
2249 if it did not directly define any functions. */
2251 if (my_stat (base_source_filename, &stat_buf) == -1)
2253 int errno_val = errno;
2254 fprintf (stderr, "%s: can't get status of aux info file `%s': %s\n",
2255 pname, shortpath (NULL, base_source_filename),
2256 my_strerror (errno_val));
2260 if (stat_buf.st_mtime > aux_info_mtime)
2271 /* Open the aux_info file. */
2273 if ((aux_info_file = my_open (aux_info_filename, O_RDONLY, 0444 )) == -1)
2275 int errno_val = errno;
2276 fprintf (stderr, "%s: can't open aux info file `%s' for reading: %s\n",
2277 pname, shortpath (NULL, aux_info_filename),
2278 my_strerror (errno_val));
2282 /* Allocate space to hold the aux_info file in memory. */
2284 aux_info_base = xmalloc (aux_info_size + 1);
2285 aux_info_limit = aux_info_base + aux_info_size;
2286 *aux_info_limit = '\0';
2288 /* Read the aux_info file into memory. */
2290 if (safe_read (aux_info_file, aux_info_base, aux_info_size) != aux_info_size)
2292 int errno_val = errno;
2293 fprintf (stderr, "%s: error reading aux info file `%s': %s\n",
2294 pname, shortpath (NULL, aux_info_filename),
2295 my_strerror (errno_val));
2296 free (aux_info_base);
2297 close (aux_info_file);
2301 /* Close the aux info file. */
2303 if (close (aux_info_file))
2305 int errno_val = errno;
2306 fprintf (stderr, "%s: error closing aux info file `%s': %s\n",
2307 pname, shortpath (NULL, aux_info_filename),
2308 my_strerror (errno_val));
2309 free (aux_info_base);
2310 close (aux_info_file);
2315 /* Delete the aux_info file (unless requested not to). If the deletion
2316 fails for some reason, don't even worry about it. */
2318 if (must_create && !keep_it)
2319 if (my_unlink (aux_info_filename) == -1)
2321 int errno_val = errno;
2322 fprintf (stderr, "%s: can't delete aux info file `%s': %s\n",
2323 pname, shortpath (NULL, aux_info_filename),
2324 my_strerror (errno_val));
2327 /* Save a pointer into the first line of the aux_info file which
2328 contains the filename of the directory from which the compiler
2329 was invoked when the associated source file was compiled.
2330 This information is used later to help create complete
2331 filenames out of the (potentially) relative filenames in
2332 the aux_info file. */
2335 char *p = aux_info_base;
2342 invocation_filename = p; /* Save a pointer to first byte of path. */
2347 while (*p++ != '\n')
2349 aux_info_second_line = p;
2350 aux_info_relocated_name = 0;
2351 if (invocation_filename[0] != '/')
2353 /* INVOCATION_FILENAME is relative;
2354 append it to BASE_SOURCE_FILENAME's dir. */
2356 aux_info_relocated_name = xmalloc (base_len + (p-invocation_filename));
2357 strcpy (aux_info_relocated_name, base_source_filename);
2358 dir_end = strrchr (aux_info_relocated_name, '/');
2362 dir_end = aux_info_relocated_name;
2363 strcpy (dir_end, invocation_filename);
2364 invocation_filename = aux_info_relocated_name;
2370 const char *aux_info_p;
2372 /* Do a pre-pass on the lines in the aux_info file, making sure that all
2373 of the source files referenced in there are at least as old as this
2374 aux_info file itself. If not, go back and regenerate the aux_info
2375 file anew. Don't do any of this for the syscalls file. */
2379 current_aux_info_lineno = 2;
2381 for (aux_info_p = aux_info_second_line; *aux_info_p; )
2383 if (referenced_file_is_newer (aux_info_p, aux_info_mtime))
2385 free (aux_info_base);
2386 xfree (aux_info_relocated_name);
2387 if (keep_it && my_unlink (aux_info_filename) == -1)
2389 int errno_val = errno;
2390 fprintf (stderr, "%s: can't delete file `%s': %s\n",
2391 pname, shortpath (NULL, aux_info_filename),
2392 my_strerror (errno_val));
2399 /* Skip over the rest of this line to start of next line. */
2401 while (*aux_info_p != '\n')
2404 current_aux_info_lineno++;
2408 /* Now do the real pass on the aux_info lines. Save their information in
2409 the in-core data base. */
2411 current_aux_info_lineno = 2;
2413 for (aux_info_p = aux_info_second_line; *aux_info_p;)
2415 char *unexpanded_line = unexpand_if_needed (aux_info_p);
2417 if (unexpanded_line)
2419 save_def_or_dec (unexpanded_line, is_syscalls);
2420 free (unexpanded_line);
2423 save_def_or_dec (aux_info_p, is_syscalls);
2425 /* Skip over the rest of this line and get to start of next line. */
2427 while (*aux_info_p != '\n')
2430 current_aux_info_lineno++;
2434 free (aux_info_base);
2435 xfree (aux_info_relocated_name);
2440 /* Check an individual filename for a .c suffix. If the filename has this
2441 suffix, rename the file such that its suffix is changed to .C. This
2442 function implements the -C option. */
2446 const hash_table_entry *hp;
2448 const char *filename = hp->symbol;
2449 int last_char_index = strlen (filename) - 1;
2450 char *const new_filename = (char *) alloca (strlen (filename) + 1);
2452 /* Note that we don't care here if the given file was converted or not. It
2453 is possible that the given file was *not* converted, simply because there
2454 was nothing in it which actually required conversion. Even in this case,
2455 we want to do the renaming. Note that we only rename files with the .c
2458 if (filename[last_char_index] != 'c' || filename[last_char_index-1] != '.')
2461 strcpy (new_filename, filename);
2462 new_filename[last_char_index] = 'C';
2464 if (my_link (filename, new_filename) == -1)
2466 int errno_val = errno;
2467 fprintf (stderr, "%s: warning: can't link file `%s' to `%s': %s\n",
2468 pname, shortpath (NULL, filename),
2469 shortpath (NULL, new_filename), my_strerror (errno_val));
2474 if (my_unlink (filename) == -1)
2476 int errno_val = errno;
2477 fprintf (stderr, "%s: warning: can't delete file `%s': %s\n",
2478 pname, shortpath (NULL, filename), my_strerror (errno_val));
2484 #endif /* !defined (UNPROTOIZE) */
2486 /* Take the list of definitions and declarations attached to a particular
2487 file_info node and reverse the order of the list. This should get the
2488 list into an order such that the item with the lowest associated line
2489 number is nearest the head of the list. When these lists are originally
2490 built, they are in the opposite order. We want to traverse them in
2491 normal line number order later (i.e. lowest to highest) so reverse the
2495 reverse_def_dec_list (hp)
2496 const hash_table_entry *hp;
2498 file_info *file_p = hp->fip;
2499 def_dec_info *prev = NULL;
2500 def_dec_info *current = (def_dec_info *)file_p->defs_decs;
2503 return; /* no list to reverse */
2506 if (! (current = (def_dec_info *)current->next_in_file))
2507 return; /* can't reverse a single list element */
2509 prev->next_in_file = NULL;
2513 def_dec_info *next = (def_dec_info *)current->next_in_file;
2515 current->next_in_file = prev;
2520 file_p->defs_decs = prev;
2525 /* Find the (only?) extern definition for a particular function name, starting
2526 from the head of the linked list of entries for the given name. If we
2527 cannot find an extern definition for the given function name, issue a
2528 warning and scrounge around for the next best thing, i.e. an extern
2529 function declaration with a prototype attached to it. Note that we only
2530 allow such substitutions for extern declarations and never for static
2531 declarations. That's because the only reason we allow them at all is
2532 to let un-prototyped function declarations for system-supplied library
2533 functions get their prototypes from our own extra SYSCALLS.c.X file which
2534 contains all of the correct prototypes for system functions. */
2536 static const def_dec_info *
2537 find_extern_def (head, user)
2538 const def_dec_info *head;
2539 const def_dec_info *user;
2541 const def_dec_info *dd_p;
2542 const def_dec_info *extern_def_p = NULL;
2543 int conflict_noted = 0;
2545 /* Don't act too stupid here. Somebody may try to convert an entire system
2546 in one swell fwoop (rather than one program at a time, as should be done)
2547 and in that case, we may find that there are multiple extern definitions
2548 of a given function name in the entire set of source files that we are
2549 converting. If however one of these definitions resides in exactly the
2550 same source file as the reference we are trying to satisfy then in that
2551 case it would be stupid for us to fail to realize that this one definition
2552 *must* be the precise one we are looking for.
2554 To make sure that we don't miss an opportunity to make this "same file"
2555 leap of faith, we do a prescan of the list of records relating to the
2556 given function name, and we look (on this first scan) *only* for a
2557 definition of the function which is in the same file as the reference
2558 we are currently trying to satisfy. */
2560 for (dd_p = head; dd_p; dd_p = dd_p->next_for_func)
2561 if (dd_p->is_func_def && !dd_p->is_static && dd_p->file == user->file)
2564 /* Now, since we have not found a definition in the same file as the
2565 reference, we scan the list again and consider all possibilities from
2566 all files. Here we may get conflicts with the things listed in the
2567 SYSCALLS.c.X file, but if that happens it only means that the source
2568 code being converted contains its own definition of a function which
2569 could have been supplied by libc.a. In such cases, we should avoid
2570 issuing the normal warning, and defer to the definition given in the
2573 for (dd_p = head; dd_p; dd_p = dd_p->next_for_func)
2574 if (dd_p->is_func_def && !dd_p->is_static)
2576 if (!extern_def_p) /* Previous definition? */
2577 extern_def_p = dd_p; /* Remember the first definition found. */
2580 /* Ignore definition just found if it came from SYSCALLS.c.X. */
2582 if (is_syscalls_file (dd_p->file))
2585 /* Quietly replace the definition previously found with the one
2586 just found if the previous one was from SYSCALLS.c.X. */
2588 if (is_syscalls_file (extern_def_p->file))
2590 extern_def_p = dd_p;
2594 /* If we get here, then there is a conflict between two function
2595 declarations for the same function, both of which came from the
2598 if (!conflict_noted) /* first time we noticed? */
2601 fprintf (stderr, "%s: conflicting extern definitions of '%s'\n",
2602 pname, head->hash_entry->symbol);
2605 fprintf (stderr, "%s: declarations of '%s' will not be converted\n",
2606 pname, head->hash_entry->symbol);
2607 fprintf (stderr, "%s: conflict list for '%s' follows:\n",
2608 pname, head->hash_entry->symbol);
2609 fprintf (stderr, "%s: %s(%d): %s\n",
2611 shortpath (NULL, extern_def_p->file->hash_entry->symbol),
2612 extern_def_p->line, extern_def_p->ansi_decl);
2616 fprintf (stderr, "%s: %s(%d): %s\n",
2618 shortpath (NULL, dd_p->file->hash_entry->symbol),
2619 dd_p->line, dd_p->ansi_decl);
2623 /* We want to err on the side of caution, so if we found multiple conflicting
2624 definitions for the same function, treat this as being that same as if we
2625 had found no definitions (i.e. return NULL). */
2632 /* We have no definitions for this function so do the next best thing.
2633 Search for an extern declaration already in prototype form. */
2635 for (dd_p = head; dd_p; dd_p = dd_p->next_for_func)
2636 if (!dd_p->is_func_def && !dd_p->is_static && dd_p->prototyped)
2638 extern_def_p = dd_p; /* save a pointer to the definition */
2640 fprintf (stderr, "%s: warning: using formals list from %s(%d) for function `%s'\n",
2642 shortpath (NULL, dd_p->file->hash_entry->symbol),
2643 dd_p->line, dd_p->hash_entry->symbol);
2647 /* Gripe about unprototyped function declarations that we found no
2648 corresponding definition (or other source of prototype information)
2651 Gripe even if the unprototyped declaration we are worried about
2652 exists in a file in one of the "system" include directories. We
2653 can gripe about these because we should have at least found a
2654 corresponding (pseudo) definition in the SYSCALLS.c.X file. If we
2655 didn't, then that means that the SYSCALLS.c.X file is missing some
2656 needed prototypes for this particular system. That is worth telling
2661 const char *file = user->file->hash_entry->symbol;
2664 if (in_system_include_dir (file))
2666 /* Why copy this string into `needed' at all?
2667 Why not just use user->ansi_decl without copying? */
2668 char *needed = (char *) alloca (strlen (user->ansi_decl) + 1);
2671 strcpy (needed, user->ansi_decl);
2672 p = (NONCONST char *) substr (needed, user->hash_entry->symbol)
2673 + strlen (user->hash_entry->symbol) + 2;
2674 /* Avoid having ??? in the string. */
2680 fprintf (stderr, "%s: %d: `%s' used but missing from SYSCALLS\n",
2681 shortpath (NULL, file), user->line,
2682 needed+7); /* Don't print "extern " */
2686 fprintf (stderr, "%s: %d: warning: no extern definition for `%s'\n",
2687 shortpath (NULL, file), user->line,
2688 user->hash_entry->symbol);
2692 return extern_def_p;
2695 /* Find the (only?) static definition for a particular function name in a
2696 given file. Here we get the function-name and the file info indirectly
2697 from the def_dec_info record pointer which is passed in. */
2699 static const def_dec_info *
2700 find_static_definition (user)
2701 const def_dec_info *user;
2703 const def_dec_info *head = user->hash_entry->ddip;
2704 const def_dec_info *dd_p;
2705 int num_static_defs = 0;
2706 const def_dec_info *static_def_p = NULL;
2708 for (dd_p = head; dd_p; dd_p = dd_p->next_for_func)
2709 if (dd_p->is_func_def && dd_p->is_static && (dd_p->file == user->file))
2711 static_def_p = dd_p; /* save a pointer to the definition */
2714 if (num_static_defs == 0)
2717 fprintf (stderr, "%s: warning: no static definition for `%s' in file `%s'\n",
2718 pname, head->hash_entry->symbol,
2719 shortpath (NULL, user->file->hash_entry->symbol));
2721 else if (num_static_defs > 1)
2723 fprintf (stderr, "%s: multiple static defs of `%s' in file `%s'\n",
2724 pname, head->hash_entry->symbol,
2725 shortpath (NULL, user->file->hash_entry->symbol));
2728 return static_def_p;
2731 /* Find good prototype style formal argument lists for all of the function
2732 declarations which didn't have them before now.
2734 To do this we consider each function name one at a time. For each function
2735 name, we look at the items on the linked list of def_dec_info records for
2736 that particular name.
2738 Somewhere on this list we should find one (and only one) def_dec_info
2739 record which represents the actual function definition, and this record
2740 should have a nice formal argument list already associated with it.
2742 Thus, all we have to do is to connect up all of the other def_dec_info
2743 records for this particular function name to the special one which has
2744 the full-blown formals list.
2746 Of course it is a little more complicated than just that. See below for
2750 connect_defs_and_decs (hp)
2751 const hash_table_entry *hp;
2753 const def_dec_info *dd_p;
2754 const def_dec_info *extern_def_p = NULL;
2755 int first_extern_reference = 1;
2757 /* Traverse the list of definitions and declarations for this particular
2758 function name. For each item on the list, if it is a function
2759 definition (either old style or new style) then GCC has already been
2760 kind enough to produce a prototype for us, and it is associated with
2761 the item already, so declare the item as its own associated "definition".
2763 Also, for each item which is only a function declaration, but which
2764 nonetheless has its own prototype already (obviously supplied by the user)
2765 declare the item as its own definition.
2767 Note that when/if there are multiple user-supplied prototypes already
2768 present for multiple declarations of any given function, these multiple
2769 prototypes *should* all match exactly with one another and with the
2770 prototype for the actual function definition. We don't check for this
2771 here however, since we assume that the compiler must have already done
2772 this consistency checking when it was creating the .X files. */
2774 for (dd_p = hp->ddip; dd_p; dd_p = dd_p->next_for_func)
2775 if (dd_p->prototyped)
2776 ((NONCONST def_dec_info *) dd_p)->definition = dd_p;
2778 /* Traverse the list of definitions and declarations for this particular
2779 function name. For each item on the list, if it is an extern function
2780 declaration and if it has no associated definition yet, go try to find
2781 the matching extern definition for the declaration.
2783 When looking for the matching function definition, warn the user if we
2786 If we find more that one function definition also issue a warning.
2788 Do the search for the matching definition only once per unique function
2789 name (and only when absolutely needed) so that we can avoid putting out
2790 redundant warning messages, and so that we will only put out warning
2791 messages when there is actually a reference (i.e. a declaration) for
2792 which we need to find a matching definition. */
2794 for (dd_p = hp->ddip; dd_p; dd_p = dd_p->next_for_func)
2795 if (!dd_p->is_func_def && !dd_p->is_static && !dd_p->definition)
2797 if (first_extern_reference)
2799 extern_def_p = find_extern_def (hp->ddip, dd_p);
2800 first_extern_reference = 0;
2802 ((NONCONST def_dec_info *) dd_p)->definition = extern_def_p;
2805 /* Traverse the list of definitions and declarations for this particular
2806 function name. For each item on the list, if it is a static function
2807 declaration and if it has no associated definition yet, go try to find
2808 the matching static definition for the declaration within the same file.
2810 When looking for the matching function definition, warn the user if we
2811 fail to find one in the same file with the declaration, and refuse to
2812 convert this kind of cross-file static function declaration. After all,
2813 this is stupid practice and should be discouraged.
2815 We don't have to worry about the possibility that there is more than one
2816 matching function definition in the given file because that would have
2817 been flagged as an error by the compiler.
2819 Do the search for the matching definition only once per unique
2820 function-name/source-file pair (and only when absolutely needed) so that
2821 we can avoid putting out redundant warning messages, and so that we will
2822 only put out warning messages when there is actually a reference (i.e. a
2823 declaration) for which we actually need to find a matching definition. */
2825 for (dd_p = hp->ddip; dd_p; dd_p = dd_p->next_for_func)
2826 if (!dd_p->is_func_def && dd_p->is_static && !dd_p->definition)
2828 const def_dec_info *dd_p2;
2829 const def_dec_info *static_def;
2831 /* We have now found a single static declaration for which we need to
2832 find a matching definition. We want to minimize the work (and the
2833 number of warnings), so we will find an appropriate (matching)
2834 static definition for this declaration, and then distribute it
2835 (as the definition for) any and all other static declarations
2836 for this function name which occur within the same file, and which
2837 do not already have definitions.
2839 Note that a trick is used here to prevent subsequent attempts to
2840 call find_static_definition for a given function-name & file
2841 if the first such call returns NULL. Essentially, we convert
2842 these NULL return values to -1, and put the -1 into the definition
2843 field for each other static declaration from the same file which
2844 does not already have an associated definition.
2845 This makes these other static declarations look like they are
2846 actually defined already when the outer loop here revisits them
2847 later on. Thus, the outer loop will skip over them. Later, we
2848 turn the -1's back to NULL's. */
2850 ((NONCONST def_dec_info *) dd_p)->definition =
2851 (static_def = find_static_definition (dd_p))
2853 : (const def_dec_info *) -1;
2855 for (dd_p2 = dd_p->next_for_func; dd_p2; dd_p2 = dd_p2->next_for_func)
2856 if (!dd_p2->is_func_def && dd_p2->is_static
2857 && !dd_p2->definition && (dd_p2->file == dd_p->file))
2858 ((NONCONST def_dec_info *)dd_p2)->definition = dd_p->definition;
2861 /* Convert any dummy (-1) definitions we created in the step above back to
2862 NULL's (as they should be). */
2864 for (dd_p = hp->ddip; dd_p; dd_p = dd_p->next_for_func)
2865 if (dd_p->definition == (def_dec_info *) -1)
2866 ((NONCONST def_dec_info *) dd_p)->definition = NULL;
2869 #endif /* !defined (UNPROTOIZE) */
2871 /* Give a pointer into the clean text buffer, return a number which is the
2872 original source line number that the given pointer points into. */
2875 identify_lineno (clean_p)
2876 const char *clean_p;
2881 for (scan_p = clean_text_base; scan_p <= clean_p; scan_p++)
2882 if (*scan_p == '\n')
2887 /* Issue an error message and give up on doing this particular edit. */
2890 declare_source_confusing (clean_p)
2891 const char *clean_p;
2896 fprintf (stderr, "%s: %d: warning: source too confusing\n",
2897 shortpath (NULL, convert_filename), last_known_line_number);
2899 fprintf (stderr, "%s: %d: warning: source too confusing\n",
2900 shortpath (NULL, convert_filename),
2901 identify_lineno (clean_p));
2903 longjmp (source_confusion_recovery, 1);
2906 /* Check that a condition which is expected to be true in the original source
2907 code is in fact true. If not, issue an error message and give up on
2908 converting this particular source file. */
2911 check_source (cond, clean_p)
2913 const char *clean_p;
2916 declare_source_confusing (clean_p);
2919 /* If we think of the in-core cleaned text buffer as a memory mapped
2920 file (with the variable last_known_line_start acting as sort of a
2921 file pointer) then we can imagine doing "seeks" on the buffer. The
2922 following routine implements a kind of "seek" operation for the in-core
2923 (cleaned) copy of the source file. When finished, it returns a pointer to
2924 the start of a given (numbered) line in the cleaned text buffer.
2926 Note that protoize only has to "seek" in the forward direction on the
2927 in-core cleaned text file buffers, and it never needs to back up.
2929 This routine is made a little bit faster by remembering the line number
2930 (and pointer value) supplied (and returned) from the previous "seek".
2931 This prevents us from always having to start all over back at the top
2932 of the in-core cleaned buffer again. */
2938 if (n < last_known_line_number)
2941 while (n > last_known_line_number)
2943 while (*last_known_line_start != '\n')
2944 check_source (++last_known_line_start < clean_text_limit, 0);
2945 last_known_line_start++;
2946 last_known_line_number++;
2948 return last_known_line_start;
2951 /* Given a pointer to a character in the cleaned text buffer, return a pointer
2952 to the next non-whitespace character which follows it. */
2955 forward_to_next_token_char (ptr)
2958 for (++ptr; ISSPACE (*ptr); 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 fprintf (stderr, "%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 fprintf (stderr, "%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 fprintf (stderr, "%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 fprintf (stderr, "\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 (*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; ISSPACE (*func_name_limit); )
3347 check_source (--func_name_limit > clean_read_ptr, 0);
3349 for (func_name_start = func_name_limit++;
3350 is_id_char (*func_name_start);
3352 check_source (func_name_start > clean_read_ptr, 0);
3354 func_name_len = func_name_limit - func_name_start;
3355 if (func_name_len == 0)
3356 check_source (0, func_name_start);
3357 if (func_name_len != strlen (expected)
3358 || strncmp (func_name_start, expected, func_name_len))
3360 fprintf (stderr, "%s: %d: warning: found `%s' but expected `%s'\n",
3361 shortpath (NULL, def_dec_p->file->hash_entry->symbol),
3362 identify_lineno (func_name_start),
3363 dupnstr (func_name_start, func_name_len),
3369 output_up_to (start_formals);
3372 if (f_list_count == 0)
3373 output_string (def_dec_p->formal_names);
3374 #else /* !defined (UNPROTOIZE) */
3376 unsigned f_list_depth;
3377 const f_list_chain_item *flci_p = def_dec_p->f_list_chain;
3379 /* At this point, the current value of f_list count says how many
3380 links we have to follow through the f_list_chain to get to the
3381 particular formals list that we need to output next. */
3383 for (f_list_depth = 0; f_list_depth < f_list_count; f_list_depth++)
3384 flci_p = flci_p->chain_next;
3385 output_string (flci_p->formals_list);
3387 #endif /* !defined (UNPROTOIZE) */
3389 clean_read_ptr = end_formals - 1;
3393 /* Given a pointer to a byte in the clean text buffer which points to
3394 the beginning of a line that contains a "follower" token for a
3395 function definition header, do whatever is necessary to find the
3396 right closing paren for the rightmost formals list of the function
3397 definition header. */
3400 find_rightmost_formals_list (clean_text_p)
3401 const char *clean_text_p;
3403 const char *end_formals;
3405 /* We are editing a function definition. The line number we did a seek
3406 to contains the first token which immediately follows the entire set of
3407 formals lists which are part of this particular function definition
3410 Our job now is to scan leftwards in the clean text looking for the
3411 right-paren which is at the end of the function header's rightmost
3414 If we ignore whitespace, this right paren should be the first one we
3415 see which is (ignoring whitespace) immediately followed either by the
3416 open curly-brace beginning the function body or by an alphabetic
3417 character (in the case where the function definition is in old (K&R)
3418 style and there are some declarations of formal parameters). */
3420 /* It is possible that the right paren we are looking for is on the
3421 current line (together with its following token). Just in case that
3422 might be true, we start out here by skipping down to the right end of
3423 the current line before starting our scan. */
3425 for (end_formals = clean_text_p; *end_formals != '\n'; end_formals++)
3431 /* Now scan backwards while looking for the right end of the rightmost
3432 formals list associated with this function definition. */
3436 const char *l_brace_p;
3438 /* Look leftward and try to find a right-paren. */
3440 while (*end_formals != ')')
3442 if (ISSPACE (*end_formals))
3443 while (ISSPACE (*end_formals))
3444 check_source (--end_formals > clean_read_ptr, 0);
3446 check_source (--end_formals > clean_read_ptr, 0);
3449 ch = *(l_brace_p = forward_to_next_token_char (end_formals));
3450 /* Since we are unprotoizing an ANSI-style (prototyped) function
3451 definition, there had better not be anything (except whitespace)
3452 between the end of the ANSI formals list and the beginning of the
3453 function body (i.e. the '{'). */
3455 check_source (ch == '{', l_brace_p);
3458 #else /* !defined (UNPROTOIZE) */
3460 /* Now scan backwards while looking for the right end of the rightmost
3461 formals list associated with this function definition. */
3466 const char *l_brace_p;
3468 /* Look leftward and try to find a right-paren. */
3470 while (*end_formals != ')')
3472 if (ISSPACE (*end_formals))
3473 while (ISSPACE (*end_formals))
3474 check_source (--end_formals > clean_read_ptr, 0);
3476 check_source (--end_formals > clean_read_ptr, 0);
3479 ch = *(l_brace_p = forward_to_next_token_char (end_formals));
3481 /* Since it is possible that we found a right paren before the starting
3482 '{' of the body which IS NOT the one at the end of the real K&R
3483 formals list (say for instance, we found one embedded inside one of
3484 the old K&R formal parameter declarations) we have to check to be
3485 sure that this is in fact the right paren that we were looking for.
3487 The one we were looking for *must* be followed by either a '{' or
3488 by an alphabetic character, while others *cannot* validly be followed
3489 by such characters. */
3491 if ((ch == '{') || ISALPHA (ch))
3494 /* At this point, we have found a right paren, but we know that it is
3495 not the one we were looking for, so backup one character and keep
3498 check_source (--end_formals > clean_read_ptr, 0);
3501 #endif /* !defined (UNPROTOIZE) */
3508 /* Insert into the output file a totally new declaration for a function
3509 which (up until now) was being called from within the current block
3510 without having been declared at any point such that the declaration
3511 was visible (i.e. in scope) at the point of the call.
3513 We need to add in explicit declarations for all such function calls
3514 in order to get the full benefit of prototype-based function call
3515 parameter type checking. */
3518 add_local_decl (def_dec_p, clean_text_p)
3519 const def_dec_info *def_dec_p;
3520 const char *clean_text_p;
3522 const char *start_of_block;
3523 const char *function_to_edit = def_dec_p->hash_entry->symbol;
3525 /* Don't insert new local explicit declarations unless explicitly requested
3531 /* Setup here to recover from confusing source code detected during this
3532 particular "edit". */
3535 if (setjmp (source_confusion_recovery))
3537 restore_pointers ();
3538 fprintf (stderr, "%s: local declaration for function `%s' not inserted\n",
3539 pname, function_to_edit);
3543 /* We have already done a seek to the start of the line which should
3544 contain *the* open curly brace which begins the block in which we need
3545 to insert an explicit function declaration (to replace the implicit one).
3547 Now we scan that line, starting from the left, until we find the
3548 open curly brace we are looking for. Note that there may actually be
3549 multiple open curly braces on the given line, but we will be happy
3550 with the leftmost one no matter what. */
3552 start_of_block = clean_text_p;
3553 while (*start_of_block != '{' && *start_of_block != '\n')
3554 check_source (++start_of_block < clean_text_limit, 0);
3556 /* Note that the line from the original source could possibly
3557 contain *no* open curly braces! This happens if the line contains
3558 a macro call which expands into a chunk of text which includes a
3559 block (and that block's associated open and close curly braces).
3560 In cases like this, we give up, issue a warning, and do nothing. */
3562 if (*start_of_block != '{')
3566 "\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 (*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 fprintf (stderr, "%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 (*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 fprintf (stderr, "%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 fprintf (stderr, "%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 fprintf (stderr, "%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 (*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 (*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 (*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] == '\\' && !ISSPACE (scan_p[1]))
3910 if (!ISSPACE (*scan_p))
3912 if (++scan_p >= new_clean_text_limit)
3918 case '"': /* Handle string literals. */
3919 non_whitespace_since_newline = 1;
3920 while (scan_p[1] != '"' || scan_p[0] == '\\')
3922 if (scan_p[0] == '\\' && !ISSPACE (scan_p[1]))
3924 if (!ISSPACE (*scan_p))
3926 if (++scan_p >= new_clean_text_limit)
3929 if (!ISSPACE (*scan_p))
3934 case '\\': /* Handle line continuations. */
3935 if (scan_p[1] != '\n')
3941 non_whitespace_since_newline = 0; /* Reset. */
3950 break; /* Whitespace characters. */
3954 non_whitespace_since_newline = 1;
3960 /* Given a pointer to the closing right parenthesis for a particular formals
3961 list (in the clean text buffer) find the corresponding left parenthesis
3962 and return a pointer to it. */
3965 careful_find_l_paren (p)
3971 for (paren_depth = 1, q = p-1; paren_depth; check_source (--q >= clean_text_base, 0))
3986 /* Scan the clean text buffer for cases of function definitions that we
3987 don't really know about because they were preprocessed out when the
3988 aux info files were created.
3990 In this version of protoize/unprotoize we just give a warning for each
3991 one found. A later version may be able to at least unprotoize such
3994 Note that we may easily find all function definitions simply by
3995 looking for places where there is a left paren which is (ignoring
3996 whitespace) immediately followed by either a left-brace or by an
3997 upper or lower case letter. Whenever we find this combination, we
3998 have also found a function definition header.
4000 Finding function *declarations* using syntactic clues is much harder.
4001 I will probably try to do this in a later version though. */
4004 scan_for_missed_items (file_p)
4005 const file_info *file_p;
4007 static const char *scan_p;
4008 const char *limit = clean_text_limit - 3;
4009 static const char *backup_limit;
4011 backup_limit = clean_text_base - 1;
4013 for (scan_p = clean_text_base; scan_p < limit; scan_p++)
4017 static const char *last_r_paren;
4018 const char *ahead_p;
4020 last_r_paren = scan_p;
4022 for (ahead_p = scan_p + 1; ISSPACE (*ahead_p); )
4023 check_source (++ahead_p < limit, limit);
4025 scan_p = ahead_p - 1;
4027 if (ISALPHA (*ahead_p) || *ahead_p == '{')
4029 const char *last_l_paren;
4030 const int lineno = identify_lineno (ahead_p);
4032 if (setjmp (source_confusion_recovery))
4035 /* We know we have a function definition header. Now skip
4036 leftwards over all of its associated formals lists. */
4040 last_l_paren = careful_find_l_paren (last_r_paren);
4041 for (last_r_paren = last_l_paren-1; ISSPACE (*last_r_paren); )
4042 check_source (--last_r_paren >= backup_limit, backup_limit);
4044 while (*last_r_paren == ')');
4046 if (is_id_char (*last_r_paren))
4048 const char *id_limit = last_r_paren + 1;
4049 const char *id_start;
4051 const def_dec_info *dd_p;
4053 for (id_start = id_limit-1; is_id_char (*id_start); )
4054 check_source (--id_start >= backup_limit, backup_limit);
4056 backup_limit = id_start;
4057 if ((id_length = (size_t) (id_limit - id_start)) == 0)
4061 char *func_name = (char *) alloca (id_length + 1);
4062 static const char * const stmt_keywords[]
4063 = { "if", "else", "do", "while", "for", "switch", "case", "return", 0 };
4064 const char * const *stmt_keyword;
4066 strncpy (func_name, id_start, id_length);
4067 func_name[id_length] = '\0';
4069 /* We must check here to see if we are actually looking at
4070 a statement rather than an actual function call. */
4072 for (stmt_keyword = stmt_keywords; *stmt_keyword; stmt_keyword++)
4073 if (!strcmp (func_name, *stmt_keyword))
4077 fprintf (stderr, "%s: found definition of `%s' at %s(%d)\n",
4080 shortpath (NULL, file_p->hash_entry->symbol),
4081 identify_lineno (id_start));
4083 /* We really should check for a match of the function name
4084 here also, but why bother. */
4086 for (dd_p = file_p->defs_decs; dd_p; dd_p = dd_p->next_in_file)
4087 if (dd_p->is_func_def && dd_p->line == lineno)
4090 /* If we make it here, then we did not know about this
4091 function definition. */
4093 fprintf (stderr, "%s: %d: warning: `%s' excluded by preprocessing\n",
4094 shortpath (NULL, file_p->hash_entry->symbol),
4095 identify_lineno (id_start), func_name);
4096 fprintf (stderr, "%s: function definition not converted\n",
4106 /* Do all editing operations for a single source file (either a "base" file
4107 or an "include" file). To do this we read the file into memory, keep a
4108 virgin copy there, make another cleaned in-core copy of the original file
4109 (i.e. one in which all of the comments and preprocessing directives have
4110 been replaced with whitespace), then use these two in-core copies of the
4111 file to make a new edited in-core copy of the file. Finally, rename the
4112 original file (as a way of saving it), and then write the edited version
4113 of the file from core to a disk file of the same name as the original.
4115 Note that the trick of making a copy of the original sans comments &
4116 preprocessing directives make the editing a whole lot easier. */
4120 const hash_table_entry *hp;
4122 struct stat stat_buf;
4123 const file_info *file_p = hp->fip;
4124 char *new_orig_text_base;
4125 char *new_orig_text_limit;
4126 char *new_clean_text_base;
4127 char *new_clean_text_limit;
4130 int first_definition_in_file;
4132 /* If we are not supposed to be converting this file, or if there is
4133 nothing in there which needs converting, just skip this file. */
4135 if (!needs_to_be_converted (file_p))
4138 convert_filename = file_p->hash_entry->symbol;
4140 /* Convert a file if it is in a directory where we want conversion
4141 and the file is not excluded. */
4143 if (!directory_specified_p (convert_filename)
4144 || file_excluded_p (convert_filename))
4148 /* Don't even mention "system" include files unless we are
4149 protoizing. If we are protoizing, we mention these as a
4150 gentle way of prodding the user to convert his "system"
4151 include files to prototype format. */
4152 && !in_system_include_dir (convert_filename)
4153 #endif /* defined (UNPROTOIZE) */
4155 fprintf (stderr, "%s: `%s' not converted\n",
4156 pname, shortpath (NULL, convert_filename));
4160 /* Let the user know what we are up to. */
4163 fprintf (stderr, "%s: would convert file `%s'\n",
4164 pname, shortpath (NULL, convert_filename));
4166 fprintf (stderr, "%s: converting file `%s'\n",
4167 pname, shortpath (NULL, convert_filename));
4170 /* Find out the size (in bytes) of the original file. */
4172 /* The cast avoids an erroneous warning on AIX. */
4173 if (my_stat ((char *)convert_filename, &stat_buf) == -1)
4175 int errno_val = errno;
4176 fprintf (stderr, "%s: can't get status for file `%s': %s\n",
4177 pname, shortpath (NULL, convert_filename),
4178 my_strerror (errno_val));
4181 orig_size = stat_buf.st_size;
4183 /* Allocate a buffer to hold the original text. */
4185 orig_text_base = new_orig_text_base = (char *) xmalloc (orig_size + 2);
4186 orig_text_limit = new_orig_text_limit = new_orig_text_base + orig_size;
4188 /* Allocate a buffer to hold the cleaned-up version of the original text. */
4190 clean_text_base = new_clean_text_base = (char *) xmalloc (orig_size + 2);
4191 clean_text_limit = new_clean_text_limit = new_clean_text_base + orig_size;
4192 clean_read_ptr = clean_text_base - 1;
4194 /* Allocate a buffer that will hopefully be large enough to hold the entire
4195 converted output text. As an initial guess for the maximum size of the
4196 output buffer, use 125% of the size of the original + some extra. This
4197 buffer can be expanded later as needed. */
4199 repl_size = orig_size + (orig_size >> 2) + 4096;
4200 repl_text_base = (char *) xmalloc (repl_size + 2);
4201 repl_text_limit = repl_text_base + repl_size - 1;
4202 repl_write_ptr = repl_text_base - 1;
4207 /* Open the file to be converted in READ ONLY mode. */
4209 if ((input_file = my_open (convert_filename, O_RDONLY, 0444)) == -1)
4211 int errno_val = errno;
4212 fprintf (stderr, "%s: can't open file `%s' for reading: %s\n",
4213 pname, shortpath (NULL, convert_filename),
4214 my_strerror (errno_val));
4218 /* Read the entire original source text file into the original text buffer
4219 in one swell fwoop. Then figure out where the end of the text is and
4220 make sure that it ends with a newline followed by a null. */
4222 if (safe_read (input_file, new_orig_text_base, orig_size) != orig_size)
4224 int errno_val = errno;
4226 fprintf (stderr, "\n%s: error reading input file `%s': %s\n",
4227 pname, shortpath (NULL, convert_filename),
4228 my_strerror (errno_val));
4235 if (orig_size == 0 || orig_text_limit[-1] != '\n')
4237 *new_orig_text_limit++ = '\n';
4241 /* Create the cleaned up copy of the original text. */
4243 memcpy (new_clean_text_base, orig_text_base,
4244 (size_t) (orig_text_limit - orig_text_base));
4245 do_cleaning (new_clean_text_base, new_clean_text_limit);
4250 size_t clean_size = orig_text_limit - orig_text_base;
4251 char *const clean_filename = (char *) alloca (strlen (convert_filename) + 6 + 1);
4253 /* Open (and create) the clean file. */
4255 strcpy (clean_filename, convert_filename);
4256 strcat (clean_filename, ".clean");
4257 if ((clean_file = creat (clean_filename, 0666)) == -1)
4259 int errno_val = errno;
4260 fprintf (stderr, "%s: can't create/open clean file `%s': %s\n",
4261 pname, shortpath (NULL, clean_filename),
4262 my_strerror (errno_val));
4266 /* Write the clean file. */
4268 safe_write (clean_file, new_clean_text_base, clean_size, clean_filename);
4274 /* Do a simplified scan of the input looking for things that were not
4275 mentioned in the aux info files because of the fact that they were
4276 in a region of the source which was preprocessed-out (via #if or
4279 scan_for_missed_items (file_p);
4281 /* Setup to do line-oriented forward seeking in the clean text buffer. */
4283 last_known_line_number = 1;
4284 last_known_line_start = clean_text_base;
4286 /* Now get down to business and make all of the necessary edits. */
4289 const def_dec_info *def_dec_p;
4291 first_definition_in_file = 1;
4292 def_dec_p = file_p->defs_decs;
4293 for (; def_dec_p; def_dec_p = def_dec_p->next_in_file)
4295 const char *clean_text_p = seek_to_line (def_dec_p->line);
4297 /* clean_text_p now points to the first character of the line which
4298 contains the `terminator' for the declaration or definition that
4299 we are about to process. */
4303 if (global_flag && def_dec_p->is_func_def && first_definition_in_file)
4305 add_global_decls (def_dec_p->file, clean_text_p);
4306 first_definition_in_file = 0;
4309 /* Don't edit this item if it is already in prototype format or if it
4310 is a function declaration and we have found no corresponding
4313 if (def_dec_p->prototyped
4314 || (!def_dec_p->is_func_def && !def_dec_p->definition))
4317 #endif /* !defined (UNPROTOIZE) */
4319 if (def_dec_p->is_func_def)
4320 edit_fn_definition (def_dec_p, clean_text_p);
4323 if (def_dec_p->is_implicit)
4324 add_local_decl (def_dec_p, clean_text_p);
4326 #endif /* !defined (UNPROTOIZE) */
4327 edit_fn_declaration (def_dec_p, clean_text_p);
4331 /* Finalize things. Output the last trailing part of the original text. */
4333 output_up_to (clean_text_limit - 1);
4335 /* If this is just a test run, stop now and just deallocate the buffers. */
4339 free (new_orig_text_base);
4340 free (new_clean_text_base);
4341 free (repl_text_base);
4345 /* Change the name of the original input file. This is just a quick way of
4346 saving the original file. */
4351 = (char *) xmalloc (strlen (convert_filename) + strlen (save_suffix) + 2);
4353 strcpy (new_filename, convert_filename);
4354 strcat (new_filename, save_suffix);
4355 if (my_link (convert_filename, new_filename) == -1)
4357 int errno_val = errno;
4358 if (errno_val == EEXIST)
4361 fprintf (stderr, "%s: warning: file `%s' already saved in `%s'\n",
4363 shortpath (NULL, convert_filename),
4364 shortpath (NULL, new_filename));
4368 fprintf (stderr, "%s: can't link file `%s' to `%s': %s\n",
4370 shortpath (NULL, convert_filename),
4371 shortpath (NULL, new_filename),
4372 my_strerror (errno_val));
4378 if (my_unlink (convert_filename) == -1)
4380 int errno_val = errno;
4381 fprintf (stderr, "%s: can't delete file `%s': %s\n",
4382 pname, shortpath (NULL, convert_filename),
4383 my_strerror (errno_val));
4390 /* Open (and create) the output file. */
4392 if ((output_file = creat (convert_filename, 0666)) == -1)
4394 int errno_val = errno;
4395 fprintf (stderr, "%s: can't create/open output file `%s': %s\n",
4396 pname, shortpath (NULL, convert_filename),
4397 my_strerror (errno_val));
4401 /* Write the output file. */
4404 unsigned int out_size = (repl_write_ptr + 1) - repl_text_base;
4406 safe_write (output_file, repl_text_base, out_size, convert_filename);
4409 close (output_file);
4412 /* Deallocate the conversion buffers. */
4414 free (new_orig_text_base);
4415 free (new_clean_text_base);
4416 free (repl_text_base);
4418 /* Change the mode of the output file to match the original file. */
4420 /* The cast avoids an erroneous warning on AIX. */
4421 if (my_chmod ((char *)convert_filename, stat_buf.st_mode) == -1)
4423 int errno_val = errno;
4424 fprintf (stderr, "%s: can't change mode of file `%s': %s\n",
4425 pname, shortpath (NULL, convert_filename),
4426 my_strerror (errno_val));
4429 /* Note: We would try to change the owner and group of the output file
4430 to match those of the input file here, except that may not be a good
4431 thing to do because it might be misleading. Also, it might not even
4432 be possible to do that (on BSD systems with quotas for instance). */
4435 /* Do all of the individual steps needed to do the protoization (or
4436 unprotoization) of the files referenced in the aux_info files given
4437 in the command line. */
4442 const char * const *base_pp;
4443 const char * const * const end_pps
4444 = &base_source_filenames[n_base_source_files];
4448 #endif /* !defined (UNPROTOIZE) */
4450 /* One-by-one, check (and create if necessary), open, and read all of the
4451 stuff in each aux_info file. After reading each aux_info file, the
4452 aux_info_file just read will be automatically deleted unless the
4453 keep_flag is set. */
4455 for (base_pp = base_source_filenames; base_pp < end_pps; base_pp++)
4456 process_aux_info_file (*base_pp, keep_flag, 0);
4460 /* Also open and read the special SYSCALLS.c aux_info file which gives us
4461 the prototypes for all of the standard system-supplied functions. */
4463 if (nondefault_syscalls_dir)
4465 syscalls_absolute_filename
4466 = (char *) xmalloc (strlen (nondefault_syscalls_dir)
4467 + sizeof (syscalls_filename) + 1);
4468 strcpy (syscalls_absolute_filename, nondefault_syscalls_dir);
4472 syscalls_absolute_filename
4473 = (char *) xmalloc (strlen (default_syscalls_dir)
4474 + sizeof (syscalls_filename) + 1);
4475 strcpy (syscalls_absolute_filename, default_syscalls_dir);
4478 syscalls_len = strlen (syscalls_absolute_filename);
4479 if (*(syscalls_absolute_filename + syscalls_len - 1) != '/')
4481 *(syscalls_absolute_filename + syscalls_len++) = '/';
4482 *(syscalls_absolute_filename + syscalls_len) = '\0';
4484 strcat (syscalls_absolute_filename, syscalls_filename);
4486 /* Call process_aux_info_file in such a way that it does not try to
4487 delete the SYSCALLS aux_info file. */
4489 process_aux_info_file (syscalls_absolute_filename, 1, 1);
4491 #endif /* !defined (UNPROTOIZE) */
4493 /* When we first read in all of the information from the aux_info files
4494 we saved in it descending line number order, because that was likely to
4495 be faster. Now however, we want the chains of def & dec records to
4496 appear in ascending line number order as we get further away from the
4497 file_info record that they hang from. The following line causes all of
4498 these lists to be rearranged into ascending line number order. */
4500 visit_each_hash_node (filename_primary, reverse_def_dec_list);
4504 /* Now do the "real" work. The following line causes each declaration record
4505 to be "visited". For each of these nodes, an attempt is made to match
4506 up the function declaration with a corresponding function definition,
4507 which should have a full prototype-format formals list with it. Once
4508 these match-ups are made, the conversion of the function declarations
4509 to prototype format can be made. */
4511 visit_each_hash_node (function_name_primary, connect_defs_and_decs);
4513 #endif /* !defined (UNPROTOIZE) */
4515 /* Now convert each file that can be converted (and needs to be). */
4517 visit_each_hash_node (filename_primary, edit_file);
4521 /* If we are working in cplusplus mode, try to rename all .c files to .C
4522 files. Don't panic if some of the renames don't work. */
4524 if (cplusplus_flag && !nochange_flag)
4525 visit_each_hash_node (filename_primary, rename_c_file);
4527 #endif /* !defined (UNPROTOIZE) */
4530 static struct option longopts[] =
4532 {"version", 0, 0, 'V'},
4533 {"file_name", 0, 0, 'p'},
4534 {"quiet", 0, 0, 'q'},
4535 {"silent", 0, 0, 'q'},
4536 {"force", 0, 0, 'f'},
4537 {"keep", 0, 0, 'k'},
4538 {"nosave", 0, 0, 'N'},
4539 {"nochange", 0, 0, 'n'},
4540 {"compiler-options", 1, 0, 'c'},
4541 {"exclude", 1, 0, 'x'},
4542 {"directory", 1, 0, 'd'},
4544 {"indent", 1, 0, 'i'},
4546 {"local", 0, 0, 'l'},
4547 {"global", 0, 0, 'g'},
4549 {"syscalls-dir", 1, 0, 'B'},
4561 const char *params = "";
4563 pname = strrchr (argv[0], '/');
4564 pname = pname ? pname+1 : argv[0];
4566 cwd_buffer = getpwd ();
4569 fprintf (stderr, "%s: cannot get working directory: %s\n",
4570 pname, my_strerror(errno));
4571 exit (FATAL_EXIT_CODE);
4574 /* By default, convert the files in the current directory. */
4575 directory_list = string_list_cons (cwd_buffer, NULL);
4577 while ((c = getopt_long (argc, argv,
4581 "B:c:Cd:gklnNp:qvVx:",
4583 longopts, &longind)) != EOF)
4585 if (c == 0) /* Long option. */
4586 c = longopts[longind].val;
4590 compiler_file_name = optarg;
4594 = string_list_cons (abspath (NULL, optarg), directory_list);
4597 exclude_list = string_list_cons (optarg, exclude_list);
4627 indent_string = optarg;
4629 #else /* !defined (UNPROTOIZE) */
4640 nondefault_syscalls_dir = optarg;
4642 #endif /* !defined (UNPROTOIZE) */
4648 /* Set up compile_params based on -p and -c options. */
4649 munge_compile_params (params);
4651 n_base_source_files = argc - optind;
4653 /* Now actually make a list of the base source filenames. */
4655 base_source_filenames
4656 = (const char **) xmalloc ((n_base_source_files + 1) * sizeof (char *));
4657 n_base_source_files = 0;
4658 for (; optind < argc; optind++)
4660 const char *path = abspath (NULL, argv[optind]);
4661 int len = strlen (path);
4663 if (path[len-1] == 'c' && path[len-2] == '.')
4664 base_source_filenames[n_base_source_files++] = path;
4667 fprintf (stderr, "%s: input file names must have .c suffixes: %s\n",
4668 pname, shortpath (NULL, path));
4674 /* We are only interested in the very first identifier token in the
4675 definition of `va_list', so if there is more junk after that first
4676 identifier token, delete it from the `varargs_style_indicator'. */
4680 for (cp = varargs_style_indicator; ISALNUM (*cp) || *cp == '_'; cp++)
4683 varargs_style_indicator = savestring (varargs_style_indicator,
4684 cp - varargs_style_indicator);
4686 #endif /* !defined (UNPROTOIZE) */
4693 fprintf (stderr, "%s: %s\n", pname, version_string);
4697 exit (errors ? FATAL_EXIT_CODE : SUCCESS_EXIT_CODE);