1 /* Protoize program - Original version by Ron Guilmette at MCC.
3 Copyright (C) 1989, 1992 Free Software Foundation, Inc.
5 This file is part of GNU CC.
7 GNU CC is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2, or (at your option)
12 GNU CC is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with GNU CC; see the file COPYING. If not, write to
19 the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, 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. */
61 /* On some systems stdio.h includes stdarg.h;
62 we must bring in gvarargs.h first. */
66 #include <sys/types.h>
75 /* Include getopt.h for the sake of getopt_long.
76 We don't need the declaration of getopt, and it could conflict
77 with something from a system header file, so effectively nullify that. */
78 #define getopt getopt_loser
84 extern const char *const sys_errlist[];
86 extern char *sys_errlist[];
88 extern char *version_string;
90 /* Systems which are compatible only with POSIX 1003.1-1988 (but *not*
91 with POSIX 1003.1-1990), e.g. Ultrix 4.2, might not have
92 const qualifiers in the prototypes in the system include files.
93 Unfortunately, this can lead to GCC issuing lots of warnings for
94 calls to the following functions. To eliminate these warnings we
95 provide the following #defines. */
97 #define my_access(file,flag) access((char *)file, flag)
98 #define my_stat(file,pkt) stat((char *)file, pkt)
99 #define my_execvp(prog,argv) execvp((char *)prog, (char **)argv)
100 #define my_link(file1, file2) link((char *)file1, (char *)file2)
101 #define my_unlink(file) unlink((char *)file)
102 #define my_open(file, mode, flag) open((char *)file, mode, flag)
103 #define my_chmod(file, mode) chmod((char *)file, mode)
105 extern char *getpwd ();
107 /* Aliases for pointers to void.
108 These were made to facilitate compilation with old brain-dead DEC C
109 compilers which didn't properly grok `void*' types. */
112 typedef void * pointer_type;
113 typedef const void * const_pointer_type;
115 typedef char * pointer_type;
116 typedef char * const_pointer_type;
126 #else /* !defined(POSIX) */
128 #define R_OK 4 /* Test for Read permission */
129 #define W_OK 2 /* Test for Write permission */
130 #define X_OK 1 /* Test for eXecute permission */
131 #define F_OK 0 /* Test for existence of File */
136 /* Declaring stat or __flsbuf with a prototype
137 causes conflicts with system headers on some systems. */
140 typedef void voidfn ();
141 extern VOLATILE voidfn abort;
145 #if 0 /* These conflict with stdio.h on some systems. */
146 extern int fprintf (FILE *, const char *, ...);
147 extern int printf (const char *, ...);
148 extern int open (const char *, int, ...);
151 extern pointer_type malloc ();
152 extern pointer_type realloc ();
157 extern int fflush ();
163 extern int unlink ();
164 extern int access ();
165 extern int execvp ();
166 /* In 2.6, try deleting these decls entirely since setjmp.h should
167 take care of them. */
170 extern int setjmp ();
173 extern void longjmp ();
177 #if 0 /* size_t from sys/types.h may fail to match GCC.
178 If so, we would get a warning from this. */
179 extern size_t strlen ()
182 /* Fork is not declared because the declaration caused a conflict
184 #if !(defined (USG) || defined (VMS))
186 #endif /* (defined (USG) || defined (VMS)) */
188 #endif /* !defined (POSIX) */
190 extern char *rindex ();
192 /* Look for these where the `const' qualifier is intentionally cast aside. */
196 /* Define a STRINGIFY macro that's right for ANSI or traditional C. */
199 #define STRINGIFY(STRING) #STRING
201 #define STRINGIFY(STRING) "STRING"
204 /* Define a default place to find the SYSCALLS.X file. */
206 #ifndef STD_PROTO_DIR
207 #define STD_PROTO_DIR "/usr/local/lib"
208 #endif /* !defined (STD_PROTO_DIR) */
210 /* Suffix of aux_info files. */
212 static const char * const aux_info_suffix = ".X";
214 /* String to attach to filenames for saved versions of original files. */
216 static const char * const save_suffix = ".save";
220 /* File name of the file which contains descriptions of standard system
221 routines. Note that we never actually do anything with this file per se,
222 but we do read in its corresponding aux_info file. */
224 static const char syscalls_filename[] = "SYSCALLS.c";
226 /* Default place to find the above file. */
228 static const char * const default_syscalls_dir = STD_PROTO_DIR;
230 /* Variable to hold the complete absolutized filename of the SYSCALLS.c.X
233 static char * syscalls_absolute_filename;
235 #endif /* !defined (UNPROTOIZE) */
237 /* Type of the structure that holds information about macro unexpansions. */
239 struct unexpansion_struct {
240 const char *expanded;
241 const char *contracted;
243 typedef struct unexpansion_struct unexpansion;
245 /* A table of conversions that may need to be made for some (stupid) older
246 operating systems where these types are preprocessor macros rather than
247 typedefs (as they really ought to be).
249 WARNING: The contracted forms must be as small (or smaller) as the
250 expanded forms, or else havoc will ensue. */
252 static const unexpansion unexpansions[] = {
253 { "struct _iobuf", "FILE" },
257 /* The number of "primary" slots in the hash tables for filenames and for
258 function names. This can be as big or as small as you like, except that
259 it must be a power of two. */
261 #define HASH_TABLE_SIZE (1 << 9)
263 /* Bit mask to use when computing hash values. */
265 static const int hash_mask = (HASH_TABLE_SIZE - 1);
267 /* Make a table of default system include directories
268 just as it is done in cccp.c. */
270 #ifndef STANDARD_INCLUDE_DIR
271 #define STANDARD_INCLUDE_DIR "/usr/include"
274 #ifndef LOCAL_INCLUDE_DIR
275 #define LOCAL_INCLUDE_DIR "/usr/local/include"
278 struct default_include { const char *fname; int cplusplus; } include_defaults[]
279 #ifdef INCLUDE_DEFAULTS
283 /* Pick up GNU C++ specific include files. */
284 { GPLUSPLUS_INCLUDE_DIR, 1},
286 /* This is the dir for fixincludes. Put it just before
287 the files that we fix. */
288 { GCC_INCLUDE_DIR, 0},
289 /* For cross-compilation, this dir name is generated
290 automatically in Makefile.in. */
291 { CROSS_INCLUDE_DIR, 0 },
292 /* This is another place that the target system's headers might be. */
293 { TOOL_INCLUDE_DIR, 0},
294 #else /* not CROSS_COMPILE */
295 /* This should be /use/local/include and should come before
296 the fixincludes-fixed header files. */
297 { LOCAL_INCLUDE_DIR, 0},
298 /* This is here ahead of GCC_INCLUDE_DIR because assert.h goes here.
299 Likewise, behind LOCAL_INCLUDE_DIR, where glibc puts its assert.h. */
300 { TOOL_INCLUDE_DIR, 0},
301 /* This is the dir for fixincludes. Put it just before
302 the files that we fix. */
303 { GCC_INCLUDE_DIR, 0},
304 /* Some systems have an extra dir of include files. */
305 #ifdef SYSTEM_INCLUDE_DIR
306 { SYSTEM_INCLUDE_DIR, 0},
308 { STANDARD_INCLUDE_DIR, 0},
309 #endif /* not CROSS_COMPILE */
312 #endif /* no INCLUDE_DEFAULTS */
314 /* Datatype for lists of directories or filenames. */
318 struct string_list *next;
321 /* List of directories in which files should be converted. */
323 struct string_list *directory_list;
325 /* List of file names which should not be converted.
326 A file is excluded if the end of its name, following a /,
327 matches one of the names in this list. */
329 struct string_list *exclude_list;
331 /* The name of the other style of variable-number-of-parameters functions
332 (i.e. the style that we want to leave unconverted because we don't yet
333 know how to convert them to this style. This string is used in warning
336 /* Also define here the string that we can search for in the parameter lists
337 taken from the .X files which will unambiguously indicate that we have
338 found a varargs style function. */
341 static const char * const other_var_style = "stdarg";
342 #else /* !defined (UNPROTOIZE) */
343 static const char * const other_var_style = "varargs";
344 /* Note that this is a string containing the expansion of va_alist.
345 But in `main' we discard all but the first token. */
346 static const char *varargs_style_indicator = STRINGIFY (va_alist);
347 #endif /* !defined (UNPROTOIZE) */
349 /* The following two types are used to create hash tables. In this program,
350 there are two hash tables which are used to store and quickly lookup two
351 different classes of strings. The first type of strings stored in the
352 first hash table are absolute filenames of files which protoize needs to
353 know about. The second type of strings (stored in the second hash table)
354 are function names. It is this second class of strings which really
355 inspired the use of the hash tables, because there may be a lot of them. */
357 typedef struct hash_table_entry_struct hash_table_entry;
359 /* Do some typedefs so that we don't have to write "struct" so often. */
361 typedef struct def_dec_info_struct def_dec_info;
362 typedef struct file_info_struct file_info;
363 typedef struct f_list_chain_item_struct f_list_chain_item;
365 /* In the struct below, note that the "_info" field has two different uses
366 depending on the type of hash table we are in (i.e. either the filenames
367 hash table or the function names hash table). In the filenames hash table
368 the info fields of the entries point to the file_info struct which is
369 associated with each filename (1 per filename). In the function names
370 hash table, the info field points to the head of a singly linked list of
371 def_dec_info entries which are all defs or decs of the function whose
372 name is pointed to by the "symbol" field. Keeping all of the defs/decs
373 for a given function name on a special list specifically for that function
374 name makes it quick and easy to find out all of the important information
375 about a given (named) function. */
377 struct hash_table_entry_struct {
378 hash_table_entry * hash_next; /* -> to secondary entries */
379 const char * symbol; /* -> to the hashed string */
381 const def_dec_info * _ddip;
385 #define ddip _info._ddip
386 #define fip _info._fip
388 /* Define a type specifically for our two hash tables. */
390 typedef hash_table_entry hash_table[HASH_TABLE_SIZE];
392 /* The following struct holds all of the important information about any
393 single filename (e.g. file) which we need to know about. */
395 struct file_info_struct {
396 const hash_table_entry * hash_entry; /* -> to associated hash entry */
397 const def_dec_info * defs_decs; /* -> to chain of defs/decs */
398 time_t mtime; /* Time of last modification. */
401 /* Due to the possibility that functions may return pointers to functions,
402 (which may themselves have their own parameter lists) and due to the
403 fact that returned pointers-to-functions may be of type "pointer-to-
404 function-returning-pointer-to-function" (ad nauseum) we have to keep
405 an entire chain of ANSI style formal parameter lists for each function.
407 Normally, for any given function, there will only be one formals list
408 on the chain, but you never know.
410 Note that the head of each chain of formals lists is pointed to by the
411 `f_list_chain' field of the corresponding def_dec_info record.
413 For any given chain, the item at the head of the chain is the *leftmost*
414 parameter list seen in the actual C language function declaration. If
415 there are other members of the chain, then these are linked in left-to-right
416 order from the head of the chain. */
418 struct f_list_chain_item_struct {
419 const f_list_chain_item * chain_next; /* -> to next item on chain */
420 const char * formals_list; /* -> to formals list string */
423 /* The following struct holds all of the important information about any
424 single function definition or declaration which we need to know about.
425 Note that for unprotoize we don't need to know very much because we
426 never even create records for stuff that we don't intend to convert
427 (like for instance defs and decs which are already in old K&R format
428 and "implicit" function declarations). */
430 struct def_dec_info_struct {
431 const def_dec_info * next_in_file; /* -> to rest of chain for file */
432 file_info * file; /* -> file_info for containing file */
433 int line; /* source line number of def/dec */
434 const char * ansi_decl; /* -> left end of ansi decl */
435 hash_table_entry * hash_entry; /* -> hash entry for function name */
436 unsigned int is_func_def; /* = 0 means this is a declaration */
437 const def_dec_info * next_for_func; /* -> to rest of chain for func name */
438 unsigned int f_list_count; /* count of formals lists we expect */
439 char prototyped; /* = 0 means already prototyped */
441 const f_list_chain_item * f_list_chain; /* -> chain of formals lists */
442 const def_dec_info * definition; /* -> def/dec containing related def */
443 char is_static; /* = 0 means visibility is "extern" */
444 char is_implicit; /* != 0 for implicit func decl's */
445 char written; /* != 0 means written for implicit */
446 #else /* !defined (UNPROTOIZE) */
447 const char * formal_names; /* -> to list of names of formals */
448 const char * formal_decls; /* -> to string of formal declarations */
449 #endif /* !defined (UNPROTOIZE) */
452 /* Pointer to the tail component of the filename by which this program was
453 invoked. Used everywhere in error and warning messages. */
455 static const char *pname;
457 /* Error counter. Will be non-zero if we should give up at the next convenient
460 static int errors = 0;
463 /* ??? These comments should say what the flag mean as well as the options
466 /* File name to use for running gcc. Allows GCC 2 to be named
467 something other than gcc. */
468 static const char *compiler_file_name = "gcc";
470 static int version_flag = 0; /* Print our version number. */
471 static int quiet_flag = 0; /* Don't print messages normally. */
472 static int nochange_flag = 0; /* Don't convert, just say what files
473 we would have converted. */
474 static int nosave_flag = 0; /* Don't save the old version. */
475 static int keep_flag = 0; /* Don't delete the .X files. */
476 static const char ** compile_params = 0; /* Option string for gcc. */
478 static const char *indent_string = " "; /* Indentation for newly
479 inserted parm decls. */
480 #else /* !defined (UNPROTOIZE) */
481 static int local_flag = 0; /* Insert new local decls (when?). */
482 static int global_flag = 0; /* set by -g option */
483 static int cplusplus_flag = 0; /* Rename converted files to *.C. */
484 static const char* nondefault_syscalls_dir = 0; /* Dir to look for
486 #endif /* !defined (UNPROTOIZE) */
488 /* An index into the compile_params array where we should insert the source
489 file name when we are ready to exec the C compiler. A zero value indicates
490 that we have not yet called munge_compile_params. */
492 static int input_file_name_index = 0;
494 /* An index into the compile_params array where we should insert the filename
495 for the aux info file, when we run the C compiler. */
496 static int aux_info_file_name_index = 0;
498 /* Count of command line arguments which were "filename" arguments. */
500 static int n_base_source_files = 0;
502 /* Points to a malloc'ed list of pointers to all of the filenames of base
503 source files which were specified on the command line. */
505 static const char **base_source_filenames;
507 /* Line number of the line within the current aux_info file that we
508 are currently processing. Used for error messages in case the prototypes
509 info file is corrupted somehow. */
511 static int current_aux_info_lineno;
513 /* Pointer to the name of the source file currently being converted. */
515 static const char *convert_filename;
517 /* Pointer to relative root string (taken from aux_info file) which indicates
518 where directory the user was in when he did the compilation step that
519 produced the containing aux_info file. */
521 static const char *invocation_filename;
523 /* Pointer to the base of the input buffer that holds the original text for the
524 source file currently being converted. */
526 static const char *orig_text_base;
528 /* Pointer to the byte just beyond the end of the input buffer that holds the
529 original text for the source file currently being converted. */
531 static const char *orig_text_limit;
533 /* Pointer to the base of the input buffer that holds the cleaned text for the
534 source file currently being converted. */
536 static const char *clean_text_base;
538 /* Pointer to the byte just beyond the end of the input buffer that holds the
539 cleaned text for the source file currently being converted. */
541 static const char *clean_text_limit;
543 /* Pointer to the last byte in the cleaned text buffer that we have already
544 (virtually) copied to the output buffer (or decided to ignore). */
546 static const char * clean_read_ptr;
548 /* Pointer to the base of the output buffer that holds the replacement text
549 for the source file currently being converted. */
551 static char *repl_text_base;
553 /* Pointer to the byte just beyond the end of the output buffer that holds the
554 replacement text for the source file currently being converted. */
556 static char *repl_text_limit;
558 /* Pointer to the last byte which has been stored into the output buffer.
559 The next byte to be stored should be stored just past where this points
562 static char * repl_write_ptr;
564 /* Pointer into the cleaned text buffer for the source file we are currently
565 converting. This points to the first character of the line that we last
566 did a "seek_to_line" to (see below). */
568 static const char *last_known_line_start;
570 /* Number of the line (in the cleaned text buffer) that we last did a
571 "seek_to_line" to. Will be one if we just read a new source file
572 into the cleaned text buffer. */
574 static int last_known_line_number;
576 /* The filenames hash table. */
578 static hash_table filename_primary;
580 /* The function names hash table. */
582 static hash_table function_name_primary;
584 /* The place to keep the recovery address which is used only in cases where
585 we get hopelessly confused by something in the cleaned original text. */
587 static jmp_buf source_confusion_recovery;
589 /* A pointer to the current directory filename (used by abspath). */
591 static char *cwd_buffer;
593 /* A place to save the read pointer until we are sure that an individual
594 attempt at editing will succeed. */
596 static const char * saved_clean_read_ptr;
598 /* A place to save the write pointer until we are sure that an individual
599 attempt at editing will succeed. */
601 static char * saved_repl_write_ptr;
603 /* Forward declaration. */
605 static const char *shortpath ();
607 /* Allocate some space, but check that the allocation was successful. */
608 /* alloca.c uses this, so don't make it static. */
616 rv = malloc (byte_count);
619 fprintf (stderr, "\n%s: virtual memory exceeded\n", pname);
621 return 0; /* avoid warnings */
627 /* Reallocate some space, but check that the reallocation was successful. */
630 xrealloc (old_space, byte_count)
631 pointer_type old_space;
636 rv = realloc (old_space, byte_count);
639 fprintf (stderr, "\n%s: virtual memory exceeded\n", pname);
641 return 0; /* avoid warnings */
647 /* Deallocate the area pointed to by an arbitrary pointer, but first, strip
648 the `const' qualifier from it and also make sure that the pointer value
653 const_pointer_type p;
656 free ((NONCONST pointer_type) p);
659 /* Make a copy of a string INPUT with size SIZE. */
662 savestring (input, size)
666 char *output = (char *) xmalloc (size + 1);
667 strcpy (output, input);
671 /* Make a copy of the concatenation of INPUT1 and INPUT2. */
674 savestring2 (input1, size1, input2, size2)
680 char *output = (char *) xmalloc (size1 + size2 + 1);
681 strcpy (output, input1);
682 strcpy (&output[size1], input2);
686 /* More 'friendly' abort that prints the line and file.
687 config.h can #define abort fancy_abort if you like that sort of thing. */
692 fprintf (stderr, "%s: internal abort\n", pname);
696 /* Make a duplicate of the first N bytes of a given string in a newly
704 char *ret_val = (char *) xmalloc (n + 1);
706 strncpy (ret_val, s, n);
711 /* Return a pointer to the first occurrence of s2 within s1 or NULL if s2
712 does not occur within s1. Assume neither s1 nor s2 are null pointers. */
717 const char *const s2;
725 for (p1 = s1, p2 = s2; c = *p2; p1++, p2++)
735 /* Read LEN bytes at PTR from descriptor DESC, for file FILENAME,
736 retrying if necessary. Return the actual number of bytes read. */
739 safe_read (desc, ptr, len)
746 int nchars = read (desc, ptr, left);
763 /* Write LEN bytes at PTR to descriptor DESC,
764 retrying if necessary, and treating any real error as fatal. */
767 safe_write (desc, ptr, len, out_fname)
774 int written = write (desc, ptr, len);
781 fprintf (stderr, "%s: error writing file `%s': %s\n",
782 pname, shortpath (NULL, out_fname), sys_errlist[errno]);
789 /* Get setup to recover in case the edit we are about to do goes awry. */
794 saved_clean_read_ptr = clean_read_ptr;
795 saved_repl_write_ptr = repl_write_ptr;
798 /* Call this routine to recover our previous state whenever something looks
799 too confusing in the source code we are trying to edit. */
804 clean_read_ptr = saved_clean_read_ptr;
805 repl_write_ptr = saved_repl_write_ptr;
808 /* Return true if the given character is a legal identifier character. */
814 return (isalnum (ch) || (ch == '_') || (ch == '$'));
817 /* Give a message indicating the proper way to invoke this program and then
818 exit with non-zero status. */
824 fprintf (stderr, "%s: usage '%s [ -VqfnkN ] [ -i <istring> ] [ filename ... ]'\n",
826 #else /* !defined (UNPROTOIZE) */
827 fprintf (stderr, "%s: usage '%s [ -VqfnkNlgC ] [ -B <diname> ] [ filename ... ]'\n",
829 #endif /* !defined (UNPROTOIZE) */
833 /* Return true if the given filename (assumed to be an absolute filename)
834 designates a file residing anywhere beneath any one of the "system"
835 include directories. */
838 in_system_include_dir (path)
841 struct default_include *p;
844 abort (); /* Must be an absolutized filename. */
846 for (p = include_defaults; p->fname; p++)
847 if (!strncmp (path, p->fname, strlen (p->fname))
848 && path[strlen (p->fname)] == '/')
854 /* Return true if the given filename designates a file that the user has
855 read access to and for which the user has write access to the containing
859 file_could_be_converted (const char *path)
861 char *const dir_name = (char *) alloca (strlen (path) + 1);
863 if (my_access (path, R_OK))
867 char *dir_last_slash;
869 strcpy (dir_name, path);
870 dir_last_slash = rindex (dir_name, '/');
872 *dir_last_slash = '\0';
874 abort (); /* Should have been an absolutized filename. */
877 if (my_access (path, W_OK))
883 /* Return true if the given filename designates a file that we are allowed
884 to modify. Files which we should not attempt to modify are (a) "system"
885 include files, and (b) files which the user doesn't have write access to,
886 and (c) files which reside in directories which the user doesn't have
887 write access to. Unless requested to be quiet, give warnings about
888 files that we will not try to convert for one reason or another. An
889 exception is made for "system" include files, which we never try to
890 convert and for which we don't issue the usual warnings. */
893 file_normally_convertible (const char *path)
895 char *const dir_name = alloca (strlen (path) + 1);
897 if (in_system_include_dir (path))
901 char *dir_last_slash;
903 strcpy (dir_name, path);
904 dir_last_slash = rindex (dir_name, '/');
906 *dir_last_slash = '\0';
908 abort (); /* Should have been an absolutized filename. */
911 if (my_access (path, R_OK))
914 fprintf (stderr, "%s: warning: no read access for file `%s'\n",
915 pname, shortpath (NULL, path));
919 if (my_access (path, W_OK))
922 fprintf (stderr, "%s: warning: no write access for file `%s'\n",
923 pname, shortpath (NULL, path));
927 if (my_access (dir_name, W_OK))
930 fprintf (stderr, "%s: warning: no write access for dir containing `%s'\n",
931 pname, shortpath (NULL, path));
941 /* Return true if the given file_info struct refers to the special SYSCALLS.c.X
942 file. Return false otherwise. */
945 is_syscalls_file (fi_p)
946 const file_info *fi_p;
948 char const *f = fi_p->hash_entry->symbol;
949 size_t fl = strlen (f), sysl = sizeof (syscalls_filename) - 1;
950 return sysl <= fl && strcmp (f + fl - sysl, syscalls_filename) == 0;
953 #endif /* !defined (UNPROTOIZE) */
955 /* Check to see if this file will need to have anything done to it on this
956 run. If there is nothing in the given file which both needs conversion
957 and for which we have the necessary stuff to do the conversion, return
958 false. Otherwise, return true.
960 Note that (for protoize) it is only valid to call this function *after*
961 the connections between declarations and definitions have all been made
962 by connect_defs_and_decs. */
965 needs_to_be_converted (file_p)
966 const file_info *file_p;
968 const def_dec_info *ddp;
972 if (is_syscalls_file (file_p))
975 #endif /* !defined (UNPROTOIZE) */
977 for (ddp = file_p->defs_decs; ddp; ddp = ddp->next_in_file)
983 /* ... and if we a protoizing and this function is in old style ... */
985 /* ... and if this a definition or is a decl with an associated def ... */
986 && (ddp->is_func_def || (!ddp->is_func_def && ddp->definition))
988 #else /* defined (UNPROTOIZE) */
990 /* ... and if we are unprotoizing and this function is in new style ... */
993 #endif /* defined (UNPROTOIZE) */
995 /* ... then the containing file needs converting. */
1000 /* Return 1 if the file name NAME is in a directory
1001 that should be converted. */
1004 directory_specified_p (name)
1007 struct string_list *p;
1009 for (p = directory_list; p; p = p->next)
1010 if (!strncmp (name, p->name, strlen (p->name))
1011 && name[strlen (p->name)] == '/')
1013 const char *q = name + strlen (p->name) + 1;
1015 /* If there are more slashes, it's in a subdir, so
1016 this match doesn't count. */
1028 /* Return 1 if the file named NAME should be excluded from conversion. */
1031 file_excluded_p (name)
1034 struct string_list *p;
1035 int len = strlen (name);
1037 for (p = exclude_list; p; p = p->next)
1038 if (!strcmp (name + len - strlen (p->name), p->name)
1039 && name[len - strlen (p->name) - 1] == '/')
1045 /* Construct a new element of a string_list.
1046 STRING is the new element value, and REST holds the remaining elements. */
1048 static struct string_list *
1049 string_list_cons (string, rest)
1051 struct string_list *rest;
1053 struct string_list *temp
1054 = (struct string_list *) xmalloc (sizeof (struct string_list));
1057 temp->name = string;
1061 /* ??? The GNU convention for mentioning function args in its comments
1062 is to capitalize them. So change "hash_tab_p" to HASH_TAB_P below.
1063 Likewise for all the other functions. */
1065 /* Given a hash table, apply some function to each node in the table. The
1066 table to traverse is given as the "hash_tab_p" argument, and the
1067 function to be applied to each node in the table is given as "func"
1071 visit_each_hash_node (hash_tab_p, func)
1072 const hash_table_entry *hash_tab_p;
1075 const hash_table_entry *primary;
1077 for (primary = hash_tab_p; primary < &hash_tab_p[HASH_TABLE_SIZE]; primary++)
1078 if (primary->symbol)
1080 hash_table_entry *second;
1083 for (second = primary->hash_next; second; second = second->hash_next)
1088 /* Initialize all of the fields of a new hash table entry, pointed
1089 to by the "p" parameter. Note that the space to hold the entry
1090 is assumed to have already been allocated before this routine is
1093 static hash_table_entry *
1095 hash_table_entry *p;
1098 p->hash_next = NULL;
1099 p->symbol = savestring (s, strlen (s));
1105 /* Look for a particular function name or filename in the particular
1106 hash table indicated by "hash_tab_p". If the name is not in the
1107 given hash table, add it. Either way, return a pointer to the
1108 hash table entry for the given name. */
1110 static hash_table_entry *
1111 lookup (hash_tab_p, search_symbol)
1112 hash_table_entry *hash_tab_p;
1113 const char *search_symbol;
1116 const char *search_symbol_char_p = search_symbol;
1117 hash_table_entry *p;
1119 while (*search_symbol_char_p)
1120 hash_value += *search_symbol_char_p++;
1121 hash_value &= hash_mask;
1122 p = &hash_tab_p[hash_value];
1124 return add_symbol (p, search_symbol);
1125 if (!strcmp (p->symbol, search_symbol))
1127 while (p->hash_next)
1130 if (!strcmp (p->symbol, search_symbol))
1133 p->hash_next = (hash_table_entry *) xmalloc (sizeof (hash_table_entry));
1135 return add_symbol (p, search_symbol);
1138 /* Throw a def/dec record on the junk heap.
1140 Also, since we are not using this record anymore, free up all of the
1141 stuff it pointed to. */
1147 xfree (p->ansi_decl);
1151 const f_list_chain_item * curr;
1152 const f_list_chain_item * next;
1154 for (curr = p->f_list_chain; curr; curr = next)
1156 next = curr->chain_next;
1160 #endif /* !defined (UNPROTOIZE) */
1165 /* Unexpand as many macro symbol as we can find.
1167 If the given line must be unexpanded, make a copy of it in the heap and
1168 return a pointer to the unexpanded copy. Otherwise return NULL. */
1171 unexpand_if_needed (aux_info_line)
1172 const char *aux_info_line;
1174 static char *line_buf = 0;
1175 static int line_buf_size = 0;
1176 const unexpansion* unexp_p;
1177 int got_unexpanded = 0;
1179 char *copy_p = line_buf;
1183 line_buf_size = 1024;
1184 line_buf = (char *) xmalloc (line_buf_size);
1189 /* Make a copy of the input string in line_buf, expanding as necessary. */
1191 for (s = aux_info_line; *s != '\n'; )
1193 for (unexp_p = unexpansions; unexp_p->expanded; unexp_p++)
1195 const char *in_p = unexp_p->expanded;
1196 size_t len = strlen (in_p);
1198 if (*s == *in_p && !strncmp (s, in_p, len) && !is_id_char (s[len]))
1200 int size = strlen (unexp_p->contracted);
1202 if (copy_p + size - line_buf >= line_buf_size)
1204 int offset = copy_p - line_buf;
1206 line_buf_size += size;
1207 line_buf = (char *) xrealloc (line_buf, line_buf_size);
1208 copy_p = line_buf + offset;
1210 strcpy (copy_p, unexp_p->contracted);
1213 /* Assume the there will not be another replacement required
1214 within the text just replaced. */
1217 goto continue_outer;
1220 if (copy_p - line_buf == line_buf_size)
1222 int offset = copy_p - line_buf;
1224 line_buf = (char *) xrealloc (line_buf, line_buf_size);
1225 copy_p = line_buf + offset;
1230 if (copy_p + 2 - line_buf >= line_buf_size)
1232 int offset = copy_p - line_buf;
1234 line_buf = (char *) xrealloc (line_buf, line_buf_size);
1235 copy_p = line_buf + offset;
1240 return (got_unexpanded ? savestring (line_buf, copy_p - line_buf) : 0);
1243 /* Return the absolutized filename for the given relative
1244 filename. Note that if that filename is already absolute, it may
1245 still be returned in a modified form because this routine also
1246 eliminates redundant slashes and single dots and eliminates double
1247 dots to get a shortest possible filename from the given input
1248 filename. The absolutization of relative filenames is made by
1249 assuming that the given filename is to be taken as relative to
1250 the first argument (cwd) or to the current directory if cwd is
1254 abspath (cwd, rel_filename)
1256 const char *rel_filename;
1258 /* Setup the current working directory as needed. */
1259 const char *cwd2 = (cwd) ? cwd : cwd_buffer;
1260 char *const abs_buffer
1261 = (char *) alloca (strlen (cwd2) + strlen (rel_filename) + 2);
1262 char *endp = abs_buffer;
1265 /* Copy the filename (possibly preceded by the current working
1266 directory name) into the absolutization buffer. */
1271 if (rel_filename[0] != '/')
1274 while (*endp++ = *src_p++)
1276 *(endp-1) = '/'; /* overwrite null */
1278 src_p = rel_filename;
1279 while (*endp++ = *src_p++)
1283 /* Now make a copy of abs_buffer into abs_buffer, shortening the
1284 filename (by taking out slashes and dots) as we go. */
1286 outp = inp = abs_buffer;
1287 *outp++ = *inp++; /* copy first slash */
1290 *outp++ = *inp++; /* copy second slash */
1296 else if (inp[0] == '/' && outp[-1] == '/')
1301 else if (inp[0] == '.' && outp[-1] == '/')
1305 else if (inp[1] == '/')
1310 else if ((inp[1] == '.') && (inp[2] == 0 || inp[2] == '/'))
1312 inp += (inp[2] == '/') ? 3 : 2;
1314 while (outp >= abs_buffer && *outp != '/')
1316 if (outp < abs_buffer)
1318 /* Catch cases like /.. where we try to backup to a
1319 point above the absolute root of the logical file
1322 fprintf (stderr, "%s: invalid file name: %s\n",
1323 pname, rel_filename);
1333 /* On exit, make sure that there is a trailing null, and make sure that
1334 the last character of the returned string is *not* a slash. */
1337 if (outp[-1] == '/')
1340 /* Make a copy (in the heap) of the stuff left in the absolutization
1341 buffer and return a pointer to the copy. */
1343 return savestring (abs_buffer, outp - abs_buffer);
1346 /* Given a filename (and possibly a directory name from which the filename
1347 is relative) return a string which is the shortest possible
1348 equivalent for the corresponding full (absolutized) filename. The
1349 shortest possible equivalent may be constructed by converting the
1350 absolutized filename to be a relative filename (i.e. relative to
1351 the actual current working directory). However if a relative filename
1352 is longer, then the full absolute filename is returned.
1356 Note that "simple-minded" conversion of any given type of filename (either
1357 relative or absolute) may not result in a valid equivalent filename if any
1358 subpart of the original filename is actually a symbolic link. */
1361 shortpath (cwd, filename)
1363 const char *filename;
1367 char *cwd_p = cwd_buffer;
1369 int unmatched_slash_count = 0;
1370 size_t filename_len = strlen (filename);
1372 path_p = abspath (cwd, filename);
1373 rel_buf_p = rel_buffer = (char *) xmalloc (filename_len);
1375 while (*cwd_p && (*cwd_p == *path_p))
1380 if (!*cwd_p && (!*path_p || *path_p == '/')) /* whole pwd matched */
1382 if (!*path_p) /* input *is* the current path! */
1393 while (*cwd_p != '/') /* backup to last slash */
1400 unmatched_slash_count++;
1403 /* Find out how many directory levels in cwd were *not* matched. */
1405 if (*cwd_p++ == '/')
1406 unmatched_slash_count++;
1408 /* Now we know how long the "short name" will be.
1409 Reject it if longer than the input. */
1410 if (unmatched_slash_count * 3 + strlen (path_p) >= filename_len)
1413 /* For each of them, put a `../' at the beginning of the short name. */
1414 while (unmatched_slash_count--)
1416 /* Give up if the result gets to be longer
1417 than the absolute path name. */
1418 if (rel_buffer + filename_len <= rel_buf_p + 3)
1425 /* Then tack on the unmatched part of the desired file's name. */
1428 if (rel_buffer + filename_len <= rel_buf_p)
1431 while (*rel_buf_p++ = *path_p++);
1434 if (*(rel_buf_p-1) == '/')
1435 *--rel_buf_p = '\0';
1440 /* Lookup the given filename in the hash table for filenames. If it is a
1441 new one, then the hash table info pointer will be null. In this case,
1442 we create a new file_info record to go with the filename, and we initialize
1443 that record with some reasonable values. */
1445 /* FILENAME was const, but that causes a warning on AIX when calling stat.
1446 That is probably a bug in AIX, but might as well avoid the warning. */
1449 find_file (filename, do_not_stat)
1453 hash_table_entry *hash_entry_p;
1455 hash_entry_p = lookup (filename_primary, filename);
1456 if (hash_entry_p->fip)
1457 return hash_entry_p->fip;
1460 struct stat stat_buf;
1461 file_info *file_p = (file_info *) xmalloc (sizeof (file_info));
1463 /* If we cannot get status on any given source file, give a warning
1464 and then just set its time of last modification to infinity. */
1467 stat_buf.st_mtime = (time_t) 0;
1470 if (my_stat (filename, &stat_buf) == -1)
1472 fprintf (stderr, "%s: %s: can't get status: %s\n",
1473 pname, shortpath (NULL, filename), sys_errlist[errno]);
1474 stat_buf.st_mtime = (time_t) -1;
1478 hash_entry_p->fip = file_p;
1479 file_p->hash_entry = hash_entry_p;
1480 file_p->defs_decs = NULL;
1481 file_p->mtime = stat_buf.st_mtime;
1486 /* Generate a fatal error because some part of the aux_info file is
1490 aux_info_corrupted ()
1492 fprintf (stderr, "\n%s: fatal error: aux info file corrupted at line %d\n",
1493 pname, current_aux_info_lineno);
1497 /* ??? This comment is vague. Say what the condition is for. */
1498 /* Check to see that a condition is true. This is kind of like an assert. */
1501 check_aux_info (cond)
1505 aux_info_corrupted ();
1508 /* Given a pointer to the closing right parenthesis for a particular formals
1509 list (in an aux_info file) find the corresponding left parenthesis and
1510 return a pointer to it. */
1513 find_corresponding_lparen (p)
1519 for (paren_depth = 1, q = p-1; paren_depth; q--)
1534 /* Given a line from an aux info file, and a time at which the aux info
1535 file it came from was created, check to see if the item described in
1536 the line comes from a file which has been modified since the aux info
1537 file was created. If so, return non-zero, else return zero. */
1540 referenced_file_is_newer (l, aux_info_mtime)
1542 time_t aux_info_mtime;
1548 check_aux_info (l[0] == '/');
1549 check_aux_info (l[1] == '*');
1550 check_aux_info (l[2] == ' ');
1553 const char *filename_start = p = l + 3;
1557 filename = (char *) alloca ((size_t) (p - filename_start) + 1);
1558 strncpy (filename, filename_start, (size_t) (p - filename_start));
1559 filename[p-filename_start] = '\0';
1562 /* Call find_file to find the file_info record associated with the file
1563 which contained this particular def or dec item. Note that this call
1564 may cause a new file_info record to be created if this is the first time
1565 that we have ever known about this particular file. */
1567 fi_p = find_file (abspath (invocation_filename, filename), 0);
1569 return (fi_p->mtime > aux_info_mtime);
1572 /* Given a line of info from the aux_info file, create a new
1573 def_dec_info record to remember all of the important information about
1574 a function definition or declaration.
1576 Link this record onto the list of such records for the particular file in
1577 which it occurred in proper (descending) line number order (for now).
1579 If there is an identical record already on the list for the file, throw
1580 this one away. Doing so takes care of the (useless and troublesome)
1581 duplicates which are bound to crop up due to multiple inclusions of any
1582 given individual header file.
1584 Finally, link the new def_dec record onto the list of such records
1585 pertaining to this particular function name. */
1588 save_def_or_dec (l, is_syscalls)
1593 const char *semicolon_p;
1594 def_dec_info *def_dec_p = (def_dec_info *) xmalloc (sizeof (def_dec_info));
1597 def_dec_p->written = 0;
1598 #endif /* !defined (UNPROTOIZE) */
1600 /* Start processing the line by picking off 5 pieces of information from
1601 the left hand end of the line. These are filename, line number,
1602 new/old/implicit flag (new = ANSI prototype format), definition or
1603 declaration flag, and extern/static flag). */
1605 check_aux_info (l[0] == '/');
1606 check_aux_info (l[1] == '*');
1607 check_aux_info (l[2] == ' ');
1610 const char *filename_start = p = l + 3;
1615 filename = (char *) alloca ((size_t) (p - filename_start) + 1);
1616 strncpy (filename, filename_start, (size_t) (p - filename_start));
1617 filename[p-filename_start] = '\0';
1619 /* Call find_file to find the file_info record associated with the file
1620 which contained this particular def or dec item. Note that this call
1621 may cause a new file_info record to be created if this is the first time
1622 that we have ever known about this particular file.
1624 Note that we started out by forcing all of the base source file names
1625 (i.e. the names of the aux_info files with the .X stripped off) into the
1626 filenames hash table, and we simultaneously setup file_info records for
1627 all of these base file names (even if they may be useless later).
1628 The file_info records for all of these "base" file names (properly)
1629 act as file_info records for the "original" (i.e. un-included) files
1630 which were submitted to gcc for compilation (when the -aux-info
1631 option was used). */
1633 def_dec_p->file = find_file (abspath (invocation_filename, filename), is_syscalls);
1637 const char *line_number_start = ++p;
1638 char line_number[10];
1642 strncpy (line_number, line_number_start, (size_t) (p - line_number_start));
1643 line_number[p-line_number_start] = '\0';
1644 def_dec_p->line = atoi (line_number);
1647 /* Check that this record describes a new-style, old-style, or implicit
1648 definition or declaration. */
1650 p++; /* Skip over the `:'. */
1651 check_aux_info ((*p == 'N') || (*p == 'O') || (*p == 'I'));
1653 /* Is this a new style (ANSI prototyped) definition or declaration? */
1655 def_dec_p->prototyped = (*p == 'N');
1659 /* Is this an implicit declaration? */
1661 def_dec_p->is_implicit = (*p == 'I');
1663 #endif /* !defined (UNPROTOIZE) */
1667 check_aux_info ((*p == 'C') || (*p == 'F'));
1669 /* Is this item a function definition (F) or a declaration (C). Note that
1670 we treat item taken from the syscalls file as though they were function
1671 definitions regardless of what the stuff in the file says. */
1673 def_dec_p->is_func_def = ((*p++ == 'F') || is_syscalls);
1676 def_dec_p->definition = 0; /* Fill this in later if protoizing. */
1677 #endif /* !defined (UNPROTOIZE) */
1679 check_aux_info (*p++ == ' ');
1680 check_aux_info (*p++ == '*');
1681 check_aux_info (*p++ == '/');
1682 check_aux_info (*p++ == ' ');
1685 check_aux_info ((!strncmp (p, "static", 6)) || (!strncmp (p, "extern", 6)));
1686 #else /* !defined (UNPROTOIZE) */
1687 if (!strncmp (p, "static", 6))
1688 def_dec_p->is_static = -1;
1689 else if (!strncmp (p, "extern", 6))
1690 def_dec_p->is_static = 0;
1692 check_aux_info (0); /* Didn't find either `extern' or `static'. */
1693 #endif /* !defined (UNPROTOIZE) */
1696 const char *ansi_start = p;
1698 p += 6; /* Pass over the "static" or "extern". */
1700 /* We are now past the initial stuff. Search forward from here to find
1701 the terminating semicolon that should immediately follow the entire
1702 ANSI format function declaration. */
1709 /* Make a copy of the ansi declaration part of the line from the aux_info
1712 def_dec_p->ansi_decl
1713 = dupnstr (ansi_start, (size_t) ((semicolon_p+1) - ansi_start));
1716 /* Backup and point at the final right paren of the final argument list. */
1720 /* Now isolate a whole set of formal argument lists, one-by-one. Normally,
1721 there will only be one list to isolate, but there could be more. */
1723 def_dec_p->f_list_count = 0;
1726 def_dec_p->f_list_chain = NULL;
1727 #endif /* !defined (UNPROTOIZE) */
1731 const char *left_paren_p = find_corresponding_lparen (p);
1734 f_list_chain_item *cip =
1735 (f_list_chain_item *) xmalloc (sizeof (f_list_chain_item));
1738 = dupnstr (left_paren_p + 1, (size_t) (p - (left_paren_p+1)));
1740 /* Add the new chain item at the head of the current list. */
1742 cip->chain_next = def_dec_p->f_list_chain;
1743 def_dec_p->f_list_chain = cip;
1745 #endif /* !defined (UNPROTOIZE) */
1746 def_dec_p->f_list_count++;
1748 p = left_paren_p - 2;
1750 /* p must now point either to another right paren, or to the last
1751 character of the name of the function that was declared/defined.
1752 If p points to another right paren, then this indicates that we
1753 are dealing with multiple formals lists. In that case, there
1754 really should be another right paren preceding this right paren. */
1759 check_aux_info (*--p == ')');
1764 const char *past_fn = p + 1;
1766 check_aux_info (*past_fn == ' ');
1768 /* Scan leftwards over the identifier that names the function. */
1770 while (is_id_char (*p))
1774 /* p now points to the leftmost character of the function name. */
1777 char *fn_string = (char *) alloca (past_fn - p + 1);
1779 strncpy (fn_string, p, (size_t) (past_fn - p));
1780 fn_string[past_fn-p] = '\0';
1781 def_dec_p->hash_entry = lookup (function_name_primary, fn_string);
1785 /* Look at all of the defs and decs for this function name that we have
1786 collected so far. If there is already one which is at the same
1787 line number in the same file, then we can discard this new def_dec_info
1790 As an extra assurance that any such pair of (nominally) identical
1791 function declarations are in fact identical, we also compare the
1792 ansi_decl parts of the lines from the aux_info files just to be on
1795 This comparison will fail if (for instance) the user was playing
1796 messy games with the preprocessor which ultimately causes one
1797 function declaration in one header file to look differently when
1798 that file is included by two (or more) other files. */
1801 const def_dec_info *other;
1803 for (other = def_dec_p->hash_entry->ddip; other; other = other->next_for_func)
1805 if (def_dec_p->line == other->line && def_dec_p->file == other->file)
1807 if (strcmp (def_dec_p->ansi_decl, other->ansi_decl))
1809 fprintf (stderr, "%s:%d: declaration of function `%s' takes different forms\n",
1810 def_dec_p->file->hash_entry->symbol,
1812 def_dec_p->hash_entry->symbol);
1815 free_def_dec (def_dec_p);
1823 /* If we are doing unprotoizing, we must now setup the pointers that will
1824 point to the K&R name list and to the K&R argument declarations list.
1826 Note that if this is only a function declaration, then we should not
1827 expect to find any K&R style formals list following the ANSI-style
1828 formals list. This is because GCC knows that such information is
1829 useless in the case of function declarations (function definitions
1830 are a different story however).
1832 Since we are unprotoizing, we don't need any such lists anyway.
1833 All we plan to do is to delete all characters between ()'s in any
1836 def_dec_p->formal_names = NULL;
1837 def_dec_p->formal_decls = NULL;
1839 if (def_dec_p->is_func_def)
1842 check_aux_info (*++p == ' ');
1843 check_aux_info (*++p == '/');
1844 check_aux_info (*++p == '*');
1845 check_aux_info (*++p == ' ');
1846 check_aux_info (*++p == '(');
1849 const char *kr_names_start = ++p; /* Point just inside '('. */
1853 p--; /* point to closing right paren */
1855 /* Make a copy of the K&R parameter names list. */
1857 def_dec_p->formal_names
1858 = dupnstr (kr_names_start, (size_t) (p - kr_names_start));
1861 check_aux_info (*++p == ' ');
1864 /* p now points to the first character of the K&R style declarations
1865 list (if there is one) or to the star-slash combination that ends
1866 the comment in which such lists get embedded. */
1868 /* Make a copy of the K&R formal decls list and set the def_dec record
1871 if (*p == '*') /* Are there no K&R declarations? */
1873 check_aux_info (*++p == '/');
1874 def_dec_p->formal_decls = "";
1878 const char *kr_decls_start = p;
1880 while (p[0] != '*' || p[1] != '/')
1884 check_aux_info (*p == ' ');
1886 def_dec_p->formal_decls
1887 = dupnstr (kr_decls_start, (size_t) (p - kr_decls_start));
1890 /* Handle a special case. If we have a function definition marked as
1891 being in "old" style, and if it's formal names list is empty, then
1892 it may actually have the string "void" in its real formals list
1893 in the original source code. Just to make sure, we will get setup
1894 to convert such things anyway.
1896 This kludge only needs to be here because of an insurmountable
1897 problem with generating .X files. */
1899 if (!def_dec_p->prototyped && !*def_dec_p->formal_names)
1900 def_dec_p->prototyped = 1;
1903 /* Since we are unprotoizing, if this item is already in old (K&R) style,
1904 we can just ignore it. If that is true, throw away the itme now. */
1906 if (!def_dec_p->prototyped)
1908 free_def_dec (def_dec_p);
1912 #endif /* defined (UNPROTOIZE) */
1914 /* Add this record to the head of the list of records pertaining to this
1915 particular function name. */
1917 def_dec_p->next_for_func = def_dec_p->hash_entry->ddip;
1918 def_dec_p->hash_entry->ddip = def_dec_p;
1920 /* Add this new def_dec_info record to the sorted list of def_dec_info
1921 records for this file. Note that we don't have to worry about duplicates
1922 (caused by multiple inclusions of header files) here because we have
1923 already eliminated duplicates above. */
1925 if (!def_dec_p->file->defs_decs)
1927 def_dec_p->file->defs_decs = def_dec_p;
1928 def_dec_p->next_in_file = NULL;
1932 int line = def_dec_p->line;
1933 const def_dec_info *prev = NULL;
1934 const def_dec_info *curr = def_dec_p->file->defs_decs;
1935 const def_dec_info *next = curr->next_in_file;
1937 while (next && (line < curr->line))
1941 next = next->next_in_file;
1943 if (line >= curr->line)
1945 def_dec_p->next_in_file = curr;
1947 ((NONCONST def_dec_info *) prev)->next_in_file = def_dec_p;
1949 def_dec_p->file->defs_decs = def_dec_p;
1951 else /* assert (next == NULL); */
1953 ((NONCONST def_dec_info *) curr)->next_in_file = def_dec_p;
1954 /* assert (next == NULL); */
1955 def_dec_p->next_in_file = next;
1960 /* Set up the vector COMPILE_PARAMS which is the argument list for running GCC.
1961 Also set input_file_name_index and aux_info_file_name_index
1962 to the indices of the slots where the file names should go. */
1964 /* We initialize the vector by removing -g, -O, -S, -c, and -o options,
1965 and adding '-aux-info AUXFILE -S -o /dev/null INFILE' at the end. */
1968 munge_compile_params (params_list)
1969 const char *params_list;
1971 /* Build up the contents in a temporary vector
1972 that is so big that to has to be big enough. */
1973 const char **temp_params
1974 = (const char **) alloca ((strlen (params_list) + 8) * sizeof (char *));
1975 int param_count = 0;
1978 temp_params[param_count++] = compiler_file_name;
1981 while (isspace (*params_list))
1985 param = params_list;
1986 while (*params_list && !isspace (*params_list))
1988 if (param[0] != '-')
1989 temp_params[param_count++]
1990 = dupnstr (param, (size_t) (params_list - param));
1999 break; /* Don't copy these. */
2001 while (isspace (*params_list))
2003 while (*params_list && !isspace (*params_list))
2007 temp_params[param_count++]
2008 = dupnstr (param, (size_t) (params_list - param));
2014 temp_params[param_count++] = "-aux-info";
2016 /* Leave room for the aux-info file name argument. */
2017 aux_info_file_name_index = param_count;
2018 temp_params[param_count++] = NULL;
2020 temp_params[param_count++] = "-S";
2021 temp_params[param_count++] = "-o";
2022 temp_params[param_count++] = "/dev/null";
2024 /* Leave room for the input file name argument. */
2025 input_file_name_index = param_count;
2026 temp_params[param_count++] = NULL;
2027 /* Terminate the list. */
2028 temp_params[param_count++] = NULL;
2030 /* Make a copy of the compile_params in heap space. */
2033 = (const char **) xmalloc (sizeof (char *) * (param_count+1));
2034 memcpy (compile_params, temp_params, sizeof (char *) * param_count);
2037 /* Do a recompilation for the express purpose of generating a new aux_info
2038 file to go with a specific base source file. */
2041 gen_aux_info_file (base_filename)
2042 const char *base_filename;
2046 if (!input_file_name_index)
2047 munge_compile_params ("");
2049 /* Store the full source file name in the argument vector. */
2050 compile_params[input_file_name_index] = shortpath (NULL, base_filename);
2051 /* Add .X to source file name to get aux-info file name. */
2052 compile_params[aux_info_file_name_index]
2053 = savestring2 (compile_params[input_file_name_index],
2054 strlen (compile_params[input_file_name_index]),
2059 fprintf (stderr, "%s: compiling `%s'\n",
2060 pname, compile_params[input_file_name_index]);
2062 if (child_pid = fork ())
2064 if (child_pid == -1)
2066 fprintf (stderr, "%s: could not fork process: %s\n",
2067 pname, sys_errlist[errno]);
2072 /* Print out the command line that the other process is now executing. */
2078 fputs ("\t", stderr);
2079 for (arg = compile_params; *arg; arg++)
2081 fputs (*arg, stderr);
2082 fputc (' ', stderr);
2084 fputc ('\n', stderr);
2092 if (wait (&wait_status) == -1)
2094 fprintf (stderr, "%s: wait failed: %s\n",
2095 pname, sys_errlist[errno]);
2098 if ((wait_status & 0x7F) != 0)
2100 fprintf (stderr, "%s: subprocess got fatal signal %d",
2101 pname, (wait_status & 0x7F));
2104 if (((wait_status & 0xFF00) >> 8) != 0)
2106 fprintf (stderr, "%s: %s exited with status %d\n",
2107 pname, base_filename, ((wait_status & 0xFF00) >> 8));
2115 if (my_execvp (compile_params[0], (char *const *) compile_params))
2117 int e = errno, f = fileno (stderr);
2118 write (f, pname, strlen (pname));
2120 write (f, compile_params[0], strlen (compile_params[0]));
2122 write (f, sys_errlist[e], strlen (sys_errlist[e]));
2126 return 1; /* Never executed. */
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 fprintf (stderr, "%s: can't read aux info file `%s': %s\n",
2181 pname, shortpath (NULL, aux_info_filename),
2182 sys_errlist[errno]);
2187 #if 0 /* There is code farther down to take care of this. */
2191 stat (aux_info_file_name, &s1);
2192 stat (base_source_file_name, &s2);
2193 if (s2.st_mtime > s1.st_mtime)
2198 /* If we need a .X file, create it, and verify we can read it. */
2201 if (!gen_aux_info_file (base_source_filename))
2206 if (my_access (aux_info_filename, R_OK) == -1)
2208 fprintf (stderr, "%s: can't read aux info file `%s': %s\n",
2209 pname, shortpath (NULL, aux_info_filename),
2210 sys_errlist[errno]);
2217 struct stat stat_buf;
2219 /* Get some status information about this aux_info file. */
2221 if (my_stat (aux_info_filename, &stat_buf) == -1)
2223 fprintf (stderr, "%s: can't get status of aux info file `%s': %s\n",
2224 pname, shortpath (NULL, aux_info_filename),
2225 sys_errlist[errno]);
2230 /* Check on whether or not this aux_info file is zero length. If it is,
2231 then just ignore it and return. */
2233 if ((aux_info_size = stat_buf.st_size) == 0)
2236 /* Get the date/time of last modification for this aux_info file and
2237 remember it. We will have to check that any source files that it
2238 contains information about are at least this old or older. */
2240 aux_info_mtime = stat_buf.st_mtime;
2244 /* Compare mod time with the .c file; update .X file if obsolete.
2245 The code later on can fail to check the .c file
2246 if it did not directly define any functions. */
2248 if (my_stat (base_source_filename, &stat_buf) == -1)
2250 fprintf (stderr, "%s: can't get status of aux info file `%s': %s\n",
2251 pname, shortpath (NULL, base_source_filename),
2252 sys_errlist[errno]);
2256 if (stat_buf.st_mtime > aux_info_mtime)
2267 /* Open the aux_info file. */
2269 if ((aux_info_file = my_open (aux_info_filename, O_RDONLY, 0444 )) == -1)
2271 fprintf (stderr, "%s: can't open aux info file `%s' for reading: %s\n",
2272 pname, shortpath (NULL, aux_info_filename),
2273 sys_errlist[errno]);
2277 /* Allocate space to hold the aux_info file in memory. */
2279 aux_info_base = xmalloc (aux_info_size + 1);
2280 aux_info_limit = aux_info_base + aux_info_size;
2281 *aux_info_limit = '\0';
2283 /* Read the aux_info file into memory. */
2285 if (safe_read (aux_info_file, aux_info_base, aux_info_size) != aux_info_size)
2287 fprintf (stderr, "%s: error reading aux info file `%s': %s\n",
2288 pname, shortpath (NULL, aux_info_filename),
2289 sys_errlist[errno]);
2290 free (aux_info_base);
2291 close (aux_info_file);
2295 /* Close the aux info file. */
2297 if (close (aux_info_file))
2299 fprintf (stderr, "%s: error closing aux info file `%s': %s\n",
2300 pname, shortpath (NULL, aux_info_filename),
2301 sys_errlist[errno]);
2302 free (aux_info_base);
2303 close (aux_info_file);
2308 /* Delete the aux_info file (unless requested not to). If the deletion
2309 fails for some reason, don't even worry about it. */
2311 if (must_create && !keep_it)
2312 if (my_unlink (aux_info_filename) == -1)
2313 fprintf (stderr, "%s: can't delete aux info file `%s': %s\n",
2314 pname, shortpath (NULL, aux_info_filename),
2315 sys_errlist[errno]);
2317 /* Save a pointer into the first line of the aux_info file which
2318 contains the filename of the directory from which the compiler
2319 was invoked when the associated source file was compiled.
2320 This information is used later to help create complete
2321 filenames out of the (potentially) relative filenames in
2322 the aux_info file. */
2325 char *p = aux_info_base;
2332 invocation_filename = p; /* Save a pointer to first byte of path. */
2337 while (*p++ != '\n')
2339 aux_info_second_line = p;
2340 aux_info_relocated_name = 0;
2341 if (invocation_filename[0] != '/')
2343 /* INVOCATION_FILENAME is relative;
2344 append it to BASE_SOURCE_FILENAME's dir. */
2346 aux_info_relocated_name = xmalloc (base_len + (p-invocation_filename));
2347 strcpy (aux_info_relocated_name, base_source_filename);
2348 dir_end = rindex (aux_info_relocated_name, '/');
2352 dir_end = aux_info_relocated_name;
2353 strcpy (dir_end, invocation_filename);
2354 invocation_filename = aux_info_relocated_name;
2360 const char *aux_info_p;
2362 /* Do a pre-pass on the lines in the aux_info file, making sure that all
2363 of the source files referenced in there are at least as old as this
2364 aux_info file itself. If not, go back and regenerate the aux_info
2365 file anew. Don't do any of this for the syscalls file. */
2369 current_aux_info_lineno = 2;
2371 for (aux_info_p = aux_info_second_line; *aux_info_p; )
2373 if (referenced_file_is_newer (aux_info_p, aux_info_mtime))
2375 free (aux_info_base);
2376 xfree (aux_info_relocated_name);
2377 if (keep_it && my_unlink (aux_info_filename) == -1)
2379 fprintf (stderr, "%s: can't delete file `%s': %s\n",
2380 pname, shortpath (NULL, aux_info_filename),
2381 sys_errlist[errno]);
2387 /* Skip over the rest of this line to start of next line. */
2389 while (*aux_info_p != '\n')
2392 current_aux_info_lineno++;
2396 /* Now do the real pass on the aux_info lines. Save their information in
2397 the in-core data base. */
2399 current_aux_info_lineno = 2;
2401 for (aux_info_p = aux_info_second_line; *aux_info_p;)
2403 char *unexpanded_line = unexpand_if_needed (aux_info_p);
2405 if (unexpanded_line)
2407 save_def_or_dec (unexpanded_line, is_syscalls);
2408 free (unexpanded_line);
2411 save_def_or_dec (aux_info_p, is_syscalls);
2413 /* Skip over the rest of this line and get to start of next line. */
2415 while (*aux_info_p != '\n')
2418 current_aux_info_lineno++;
2422 free (aux_info_base);
2423 xfree (aux_info_relocated_name);
2428 /* Check an individual filename for a .c suffix. If the filename has this
2429 suffix, rename the file such that its suffix is changed to .C. This
2430 function implements the -C option. */
2434 const hash_table_entry *hp;
2436 const char *filename = hp->symbol;
2437 int last_char_index = strlen (filename) - 1;
2438 char *const new_filename = (char *) alloca (strlen (filename) + 1);
2440 /* Note that we don't care here if the given file was converted or not. It
2441 is possible that the given file was *not* converted, simply because there
2442 was nothing in it which actually required conversion. Even in this case,
2443 we want to do the renaming. Note that we only rename files with the .c
2446 if (filename[last_char_index] != 'c' || filename[last_char_index-1] != '.')
2449 strcpy (new_filename, filename);
2450 new_filename[last_char_index] = 'C';
2452 if (my_link (filename, new_filename) == -1)
2454 fprintf (stderr, "%s: warning: can't link file `%s' to `%s': %s\n",
2455 pname, shortpath (NULL, filename),
2456 shortpath (NULL, new_filename), sys_errlist[errno]);
2461 if (my_unlink (filename) == -1)
2463 fprintf (stderr, "%s: warning: can't delete file `%s': %s\n",
2464 pname, shortpath (NULL, filename), sys_errlist[errno]);
2470 #endif /* !defined (UNPROTOIZE) */
2472 /* Take the list of definitions and declarations attached to a particular
2473 file_info node and reverse the order of the list. This should get the
2474 list into an order such that the item with the lowest associated line
2475 number is nearest the head of the list. When these lists are originally
2476 built, they are in the opposite order. We want to traverse them in
2477 normal line number order later (i.e. lowest to highest) so reverse the
2481 reverse_def_dec_list (hp)
2482 const hash_table_entry *hp;
2484 file_info *file_p = hp->fip;
2485 const def_dec_info *prev = NULL;
2486 const def_dec_info *current = file_p->defs_decs;
2488 if (!( current = file_p->defs_decs))
2489 return; /* no list to reverse */
2492 if (! (current = current->next_in_file))
2493 return; /* can't reverse a single list element */
2495 ((NONCONST def_dec_info *) prev)->next_in_file = NULL;
2499 const def_dec_info *next = current->next_in_file;
2501 ((NONCONST def_dec_info *) current)->next_in_file = prev;
2506 file_p->defs_decs = prev;
2511 /* Find the (only?) extern definition for a particular function name, starting
2512 from the head of the linked list of entries for the given name. If we
2513 cannot find an extern definition for the given function name, issue a
2514 warning and scrounge around for the next best thing, i.e. an extern
2515 function declaration with a prototype attached to it. Note that we only
2516 allow such substitutions for extern declarations and never for static
2517 declarations. That's because the only reason we allow them at all is
2518 to let un-prototyped function declarations for system-supplied library
2519 functions get their prototypes from our own extra SYSCALLS.c.X file which
2520 contains all of the correct prototypes for system functions. */
2522 static const def_dec_info *
2523 find_extern_def (head, user)
2524 const def_dec_info *head;
2525 const def_dec_info *user;
2527 const def_dec_info *dd_p;
2528 const def_dec_info *extern_def_p = NULL;
2529 int conflict_noted = 0;
2531 /* Don't act too stupid here. Somebody may try to convert an entire system
2532 in one swell fwoop (rather than one program at a time, as should be done)
2533 and in that case, we may find that there are multiple extern definitions
2534 of a given function name in the entire set of source files that we are
2535 converting. If however one of these definitions resides in exactly the
2536 same source file as the reference we are trying to satisfy then in that
2537 case it would be stupid for us to fail to realize that this one definition
2538 *must* be the precise one we are looking for.
2540 To make sure that we don't miss an opportunity to make this "same file"
2541 leap of faith, we do a prescan of the list of records relating to the
2542 given function name, and we look (on this first scan) *only* for a
2543 definition of the function which is in the same file as the reference
2544 we are currently trying to satisfy. */
2546 for (dd_p = head; dd_p; dd_p = dd_p->next_for_func)
2547 if (dd_p->is_func_def && !dd_p->is_static && dd_p->file == user->file)
2550 /* Now, since we have not found a definition in the same file as the
2551 reference, we scan the list again and consider all possibilities from
2552 all files. Here we may get conflicts with the things listed in the
2553 SYSCALLS.c.X file, but if that happens it only means that the source
2554 code being converted contains its own definition of a function which
2555 could have been supplied by libc.a. In such cases, we should avoid
2556 issuing the normal warning, and defer to the definition given in the
2559 for (dd_p = head; dd_p; dd_p = dd_p->next_for_func)
2560 if (dd_p->is_func_def && !dd_p->is_static)
2562 if (!extern_def_p) /* Previous definition? */
2563 extern_def_p = dd_p; /* Remember the first definition found. */
2566 /* Ignore definition just found if it came from SYSCALLS.c.X. */
2568 if (is_syscalls_file (dd_p->file))
2571 /* Quietly replace the definition previously found with the one
2572 just found if the previous one was from SYSCALLS.c.X. */
2574 if (is_syscalls_file (extern_def_p->file))
2576 extern_def_p = dd_p;
2580 /* If we get here, then there is a conflict between two function
2581 declarations for the same function, both of which came from the
2584 if (!conflict_noted) /* first time we noticed? */
2587 fprintf (stderr, "%s: conflicting extern definitions of '%s'\n",
2588 pname, head->hash_entry->symbol);
2591 fprintf (stderr, "%s: declarations of '%s' will not be converted\n",
2592 pname, head->hash_entry->symbol);
2593 fprintf (stderr, "%s: conflict list for '%s' follows:\n",
2594 pname, head->hash_entry->symbol);
2595 fprintf (stderr, "%s: %s(%d): %s\n",
2597 shortpath (NULL, extern_def_p->file->hash_entry->symbol),
2598 extern_def_p->line, extern_def_p->ansi_decl);
2602 fprintf (stderr, "%s: %s(%d): %s\n",
2604 shortpath (NULL, dd_p->file->hash_entry->symbol),
2605 dd_p->line, dd_p->ansi_decl);
2609 /* We want to err on the side of caution, so if we found multiple conflicting
2610 definitions for the same function, treat this as being that same as if we
2611 had found no definitions (i.e. return NULL). */
2618 /* We have no definitions for this function so do the next best thing.
2619 Search for an extern declaration already in prototype form. */
2621 for (dd_p = head; dd_p; dd_p = dd_p->next_for_func)
2622 if (!dd_p->is_func_def && !dd_p->is_static && dd_p->prototyped)
2624 extern_def_p = dd_p; /* save a pointer to the definition */
2626 fprintf (stderr, "%s: warning: using formals list from %s(%d) for function `%s'\n",
2628 shortpath (NULL, dd_p->file->hash_entry->symbol),
2629 dd_p->line, dd_p->hash_entry->symbol);
2633 /* Gripe about unprototyped function declarations that we found no
2634 corresponding definition (or other source of prototype information)
2637 Gripe even if the unprototyped declaration we are worried about
2638 exists in a file in one of the "system" include directories. We
2639 can gripe about these because we should have at least found a
2640 corresponding (pseudo) definition in the SYSCALLS.c.X file. If we
2641 didn't, then that means that the SYSCALLS.c.X file is missing some
2642 needed prototypes for this particular system. That is worth telling
2647 const char *file = user->file->hash_entry->symbol;
2650 if (in_system_include_dir (file))
2652 /* Why copy this string into `needed' at all?
2653 Why not just use user->ansi_decl without copying? */
2654 char *needed = (char *) alloca (strlen (user->ansi_decl) + 1);
2657 strcpy (needed, user->ansi_decl);
2658 p = (NONCONST char *) substr (needed, user->hash_entry->symbol)
2659 + strlen (user->hash_entry->symbol) + 2;
2660 /* Avoid having ??? in the string. */
2666 fprintf (stderr, "%s: %d: `%s' used but missing from SYSCALLS\n",
2667 shortpath (NULL, file), user->line,
2668 needed+7); /* Don't print "extern " */
2672 fprintf (stderr, "%s: %d: warning: no extern definition for `%s'\n",
2673 shortpath (NULL, file), user->line,
2674 user->hash_entry->symbol);
2678 return extern_def_p;
2681 /* Find the (only?) static definition for a particular function name in a
2682 given file. Here we get the function-name and the file info indirectly
2683 from the def_dec_info record pointer which is passed in. */
2685 static const def_dec_info *
2686 find_static_definition (user)
2687 const def_dec_info *user;
2689 const def_dec_info *head = user->hash_entry->ddip;
2690 const def_dec_info *dd_p;
2691 int num_static_defs = 0;
2692 const def_dec_info *static_def_p = NULL;
2694 for (dd_p = head; dd_p; dd_p = dd_p->next_for_func)
2695 if (dd_p->is_func_def && dd_p->is_static && (dd_p->file == user->file))
2697 static_def_p = dd_p; /* save a pointer to the definition */
2700 if (num_static_defs == 0)
2703 fprintf (stderr, "%s: warning: no static definition for `%s' in file `%s'\n",
2704 pname, head->hash_entry->symbol,
2705 shortpath (NULL, user->file->hash_entry->symbol));
2707 else if (num_static_defs > 1)
2709 fprintf (stderr, "%s: multiple static defs of `%s' in file `%s'\n",
2710 pname, head->hash_entry->symbol,
2711 shortpath (NULL, user->file->hash_entry->symbol));
2714 return static_def_p;
2717 /* Find good prototype style formal argument lists for all of the function
2718 declarations which didn't have them before now.
2720 To do this we consider each function name one at a time. For each function
2721 name, we look at the items on the linked list of def_dec_info records for
2722 that particular name.
2724 Somewhere on this list we should find one (and only one) def_dec_info
2725 record which represents the actual function definition, and this record
2726 should have a nice formal argument list already associated with it.
2728 Thus, all we have to do is to connect up all of the other def_dec_info
2729 records for this particular function name to the special one which has
2730 the full-blown formals list.
2732 Of course it is a little more complicated than just that. See below for
2736 connect_defs_and_decs (hp)
2737 const hash_table_entry *hp;
2739 const def_dec_info *dd_p;
2740 const def_dec_info *extern_def_p = NULL;
2741 int first_extern_reference = 1;
2743 /* Traverse the list of definitions and declarations for this particular
2744 function name. For each item on the list, if it is a function
2745 definition (either old style or new style) then GCC has already been
2746 kind enough to produce a prototype for us, and it is associated with
2747 the item already, so declare the item as its own associated "definition".
2749 Also, for each item which is only a function declaration, but which
2750 nonetheless has its own prototype already (obviously supplied by the user)
2751 declare the item as it's own definition.
2753 Note that when/if there are multiple user-supplied prototypes already
2754 present for multiple declarations of any given function, these multiple
2755 prototypes *should* all match exactly with one another and with the
2756 prototype for the actual function definition. We don't check for this
2757 here however, since we assume that the compiler must have already done
2758 this consistency checking when it was creating the .X files. */
2760 for (dd_p = hp->ddip; dd_p; dd_p = dd_p->next_for_func)
2761 if (dd_p->prototyped)
2762 ((NONCONST def_dec_info *) dd_p)->definition = dd_p;
2764 /* Traverse the list of definitions and declarations for this particular
2765 function name. For each item on the list, if it is an extern function
2766 declaration and if it has no associated definition yet, go try to find
2767 the matching extern definition for the declaration.
2769 When looking for the matching function definition, warn the user if we
2772 If we find more that one function definition also issue a warning.
2774 Do the search for the matching definition only once per unique function
2775 name (and only when absolutely needed) so that we can avoid putting out
2776 redundant warning messages, and so that we will only put out warning
2777 messages when there is actually a reference (i.e. a declaration) for
2778 which we need to find a matching definition. */
2780 for (dd_p = hp->ddip; dd_p; dd_p = dd_p->next_for_func)
2781 if (!dd_p->is_func_def && !dd_p->is_static && !dd_p->definition)
2783 if (first_extern_reference)
2785 extern_def_p = find_extern_def (hp->ddip, dd_p);
2786 first_extern_reference = 0;
2788 ((NONCONST def_dec_info *) dd_p)->definition = extern_def_p;
2791 /* Traverse the list of definitions and declarations for this particular
2792 function name. For each item on the list, if it is a static function
2793 declaration and if it has no associated definition yet, go try to find
2794 the matching static definition for the declaration within the same file.
2796 When looking for the matching function definition, warn the user if we
2797 fail to find one in the same file with the declaration, and refuse to
2798 convert this kind of cross-file static function declaration. After all,
2799 this is stupid practice and should be discouraged.
2801 We don't have to worry about the possibility that there is more than one
2802 matching function definition in the given file because that would have
2803 been flagged as an error by the compiler.
2805 Do the search for the matching definition only once per unique
2806 function-name/source-file pair (and only when absolutely needed) so that
2807 we can avoid putting out redundant warning messages, and so that we will
2808 only put out warning messages when there is actually a reference (i.e. a
2809 declaration) for which we actually need to find a matching definition. */
2811 for (dd_p = hp->ddip; dd_p; dd_p = dd_p->next_for_func)
2812 if (!dd_p->is_func_def && dd_p->is_static && !dd_p->definition)
2814 const def_dec_info *dd_p2;
2815 const def_dec_info *static_def;
2817 /* We have now found a single static declaration for which we need to
2818 find a matching definition. We want to minimize the work (and the
2819 number of warnings), so we will find an appropriate (matching)
2820 static definition for this declaration, and then distribute it
2821 (as the definition for) any and all other static declarations
2822 for this function name which occur within the same file, and which
2823 do not already have definitions.
2825 Note that a trick is used here to prevent subsequent attempts to
2826 call find_static_definition for a given function-name & file
2827 if the first such call returns NULL. Essentially, we convert
2828 these NULL return values to -1, and put the -1 into the definition
2829 field for each other static declaration from the same file which
2830 does not already have an associated definition.
2831 This makes these other static declarations look like they are
2832 actually defined already when the outer loop here revisits them
2833 later on. Thus, the outer loop will skip over them. Later, we
2834 turn the -1's back to NULL's. */
2836 ((NONCONST def_dec_info *) dd_p)->definition =
2837 (static_def = find_static_definition (dd_p))
2839 : (const def_dec_info *) -1;
2841 for (dd_p2 = dd_p->next_for_func; dd_p2; dd_p2 = dd_p2->next_for_func)
2842 if (!dd_p2->is_func_def && dd_p2->is_static
2843 && !dd_p2->definition && (dd_p2->file == dd_p->file))
2844 ((NONCONST def_dec_info *)dd_p2)->definition = dd_p->definition;
2847 /* Convert any dummy (-1) definitions we created in the step above back to
2848 NULL's (as they should be). */
2850 for (dd_p = hp->ddip; dd_p; dd_p = dd_p->next_for_func)
2851 if (dd_p->definition == (def_dec_info *) -1)
2852 ((NONCONST def_dec_info *) dd_p)->definition = NULL;
2855 #endif /* !defined (UNPROTOIZE) */
2857 /* Give a pointer into the clean text buffer, return a number which is the
2858 original source line number that the given pointer points into. */
2861 identify_lineno (clean_p)
2862 const char *clean_p;
2867 for (scan_p = clean_text_base; scan_p <= clean_p; scan_p++)
2868 if (*scan_p == '\n')
2873 /* Issue an error message and give up on doing this particular edit. */
2876 declare_source_confusing (clean_p)
2877 const char *clean_p;
2882 fprintf (stderr, "%s: %d: warning: source too confusing\n",
2883 shortpath (NULL, convert_filename), last_known_line_number);
2885 fprintf (stderr, "%s: %d: warning: source too confusing\n",
2886 shortpath (NULL, convert_filename),
2887 identify_lineno (clean_p));
2889 longjmp (source_confusion_recovery, 1);
2892 /* Check that a condition which is expected to be true in the original source
2893 code is in fact true. If not, issue an error message and give up on
2894 converting this particular source file. */
2897 check_source (cond, clean_p)
2899 const char *clean_p;
2902 declare_source_confusing (clean_p);
2905 /* If we think of the in-core cleaned text buffer as a memory mapped
2906 file (with the variable last_known_line_start acting as sort of a
2907 file pointer) then we can imagine doing "seeks" on the buffer. The
2908 following routine implements a kind of "seek" operation for the in-core
2909 (cleaned) copy of the source file. When finished, it returns a pointer to
2910 the start of a given (numbered) line in the cleaned text buffer.
2912 Note that protoize only has to "seek" in the forward direction on the
2913 in-core cleaned text file buffers, and it never needs to back up.
2915 This routine is made a little bit faster by remembering the line number
2916 (and pointer value) supplied (and returned) from the previous "seek".
2917 This prevents us from always having to start all over back at the top
2918 of the in-core cleaned buffer again. */
2924 if (n < last_known_line_number)
2927 while (n > last_known_line_number)
2929 while (*last_known_line_start != '\n')
2930 check_source (++last_known_line_start < clean_text_limit, 0);
2931 last_known_line_start++;
2932 last_known_line_number++;
2934 return last_known_line_start;
2937 /* Given a pointer to a character in the cleaned text buffer, return a pointer
2938 to the next non-whitepace character which follows it. */
2941 forward_to_next_token_char (ptr)
2944 for (++ptr; isspace (*ptr); check_source (++ptr < clean_text_limit, 0))
2949 /* Copy a chunk of text of length `len' and starting at `str' to the current
2950 output buffer. Note that all attempts to add stuff to the current output
2951 buffer ultimately go through here. */
2954 output_bytes (str, len)
2958 if ((repl_write_ptr + 1) + len >= repl_text_limit)
2960 size_t new_size = (repl_text_limit - repl_text_base) << 1;
2961 char *new_buf = (char *) xrealloc (repl_text_base, new_size);
2963 repl_write_ptr = new_buf + (repl_write_ptr - repl_text_base);
2964 repl_text_base = new_buf;
2965 repl_text_limit = new_buf + new_size;
2967 memcpy (repl_write_ptr + 1, str, len);
2968 repl_write_ptr += len;
2971 /* Copy all bytes (except the trailing null) of a null terminated string to
2972 the current output buffer. */
2978 output_bytes (str, strlen (str));
2981 /* Copy some characters from the original text buffer to the current output
2984 This routine takes a pointer argument `p' which is assumed to be a pointer
2985 into the cleaned text buffer. The bytes which are copied are the `original'
2986 equivalents for the set of bytes between the last value of `clean_read_ptr'
2987 and the argument value `p'.
2989 The set of bytes copied however, comes *not* from the cleaned text buffer,
2990 but rather from the direct counterparts of these bytes within the original
2993 Thus, when this function is called, some bytes from the original text
2994 buffer (which may include original comments and preprocessing directives)
2995 will be copied into the output buffer.
2997 Note that the request implide when this routine is called includes the
2998 byte pointed to by the argument pointer `p'. */
3004 size_t copy_length = (size_t) (p - clean_read_ptr);
3005 const char *copy_start = orig_text_base+(clean_read_ptr-clean_text_base)+1;
3007 if (copy_length == 0)
3010 output_bytes (copy_start, copy_length);
3014 /* Given a pointer to a def_dec_info record which represents some form of
3015 definition of a function (perhaps a real definition, or in lieu of that
3016 perhaps just a declaration with a full prototype) return true if this
3017 function is one which we should avoid converting. Return false
3021 other_variable_style_function (ansi_header)
3022 const char *ansi_header;
3026 /* See if we have a stdarg function, or a function which has stdarg style
3027 parameters or a stdarg style return type. */
3029 return substr (ansi_header, "...") != 0;
3031 #else /* !defined (UNPROTOIZE) */
3033 /* See if we have a varargs function, or a function which has varargs style
3034 parameters or a varargs style return type. */
3037 int len = strlen (varargs_style_indicator);
3039 for (p = ansi_header; p; )
3041 const char *candidate;
3043 if ((candidate = substr (p, varargs_style_indicator)) == 0)
3046 if (!is_id_char (candidate[-1]) && !is_id_char (candidate[len]))
3052 #endif /* !defined (UNPROTOIZE) */
3055 /* Do the editing operation specifically for a function "declaration". Note
3056 that editing for function "definitions" are handled in a separate routine
3060 edit_fn_declaration (def_dec_p, clean_text_p)
3061 const def_dec_info *def_dec_p;
3062 const char *volatile clean_text_p;
3064 const char *start_formals;
3065 const char *end_formals;
3066 const char *function_to_edit = def_dec_p->hash_entry->symbol;
3067 size_t func_name_len = strlen (function_to_edit);
3068 const char *end_of_fn_name;
3072 const f_list_chain_item *this_f_list_chain_item;
3073 const def_dec_info *definition = def_dec_p->definition;
3075 /* If we are protoizing, and if we found no corresponding definition for
3076 this particular function declaration, then just leave this declaration
3077 exactly as it is. */
3082 /* If we are protoizing, and if the corresponding definition that we found
3083 for this particular function declaration defined an old style varargs
3084 function, then we want to issue a warning and just leave this function
3085 declaration unconverted. */
3087 if (other_variable_style_function (definition->ansi_decl))
3090 fprintf (stderr, "%s: %d: warning: varargs function declaration not converted\n",
3091 shortpath (NULL, def_dec_p->file->hash_entry->symbol),
3096 #endif /* !defined (UNPROTOIZE) */
3098 /* Setup here to recover from confusing source code detected during this
3099 particular "edit". */
3102 if (setjmp (source_confusion_recovery))
3104 restore_pointers ();
3105 fprintf (stderr, "%s: declaration of function `%s' not converted\n",
3106 pname, function_to_edit);
3110 /* We are editing a function declaration. The line number we did a seek to
3111 contains the comma or semicolon which follows the declaration. Our job
3112 now is to scan backwards looking for the function name. This name *must*
3113 be followed by open paren (ignoring whitespace, of course). We need to
3114 replace everything between that open paren and the corresponding closing
3115 paren. If we are protoizing, we need to insert the prototype-style
3116 formals lists. If we are unprotoizing, we need to just delete everything
3117 between the pairs of opening and closing parens. */
3119 /* First move up to the end of the line. */
3121 while (*clean_text_p != '\n')
3122 check_source (++clean_text_p < clean_text_limit, 0);
3123 clean_text_p--; /* Point to just before the newline character. */
3125 /* Now we can scan backwards for the function name. */
3131 /* Scan leftwards until we find some character which can be
3132 part of an identifier. */
3134 while (!is_id_char (*clean_text_p))
3135 check_source (--clean_text_p > clean_read_ptr, 0);
3137 /* Scan backwards until we find a char that cannot be part of an
3140 while (is_id_char (*clean_text_p))
3141 check_source (--clean_text_p > clean_read_ptr, 0);
3143 /* Having found an "id break", see if the following id is the one
3144 that we are looking for. If so, then exit from this loop. */
3146 if (!strncmp (clean_text_p+1, function_to_edit, func_name_len))
3148 char ch = *(clean_text_p + 1 + func_name_len);
3150 /* Must also check to see that the name in the source text
3151 ends where it should (in order to prevent bogus matches
3152 on similar but longer identifiers. */
3154 if (! is_id_char (ch))
3155 break; /* exit from loop */
3159 /* We have now found the first perfect match for the function name in
3160 our backward search. This may or may not be the actual function
3161 name at the start of the actual function declaration (i.e. we could
3162 have easily been mislead). We will try to avoid getting fooled too
3163 often by looking forward for the open paren which should follow the
3164 identifier we just found. We ignore whitespace while hunting. If
3165 the next non-whitespace byte we see is *not* an open left paren,
3166 then we must assume that we have been fooled and we start over
3167 again accordingly. Note that there is no guarantee, that even if
3168 we do see the open paren, that we are in the right place.
3169 Programmers do the strangest things sometimes! */
3171 end_of_fn_name = clean_text_p + strlen (def_dec_p->hash_entry->symbol);
3172 start_formals = forward_to_next_token_char (end_of_fn_name);
3174 while (*start_formals != '(');
3176 /* start_of_formals now points to the opening left paren which immediately
3177 follows the name of the function. */
3179 /* Note that there may be several formals lists which need to be modified
3180 due to the possibility that the return type of this function is a
3181 pointer-to-function type. If there are several formals lists, we
3182 convert them in left-to-right order here. */
3185 this_f_list_chain_item = definition->f_list_chain;
3186 #endif /* !defined (UNPROTOIZE) */
3193 end_formals = start_formals + 1;
3195 for (; depth; check_source (++end_formals < clean_text_limit, 0))
3197 switch (*end_formals)
3210 /* end_formals now points to the closing right paren of the formals
3211 list whose left paren is pointed to by start_formals. */
3213 /* Now, if we are protoizing, we insert the new ANSI-style formals list
3214 attached to the associated definition of this function. If however
3215 we are unprotoizing, then we simply delete any formals list which
3218 output_up_to (start_formals);
3220 if (this_f_list_chain_item)
3222 output_string (this_f_list_chain_item->formals_list);
3223 this_f_list_chain_item = this_f_list_chain_item->chain_next;
3228 fprintf (stderr, "%s: warning: too many parameter lists in declaration of `%s'\n",
3229 pname, def_dec_p->hash_entry->symbol);
3230 check_source (0, end_formals); /* leave the declaration intact */
3232 #endif /* !defined (UNPROTOIZE) */
3233 clean_read_ptr = end_formals - 1;
3235 /* Now see if it looks like there may be another formals list associated
3236 with the function declaration that we are converting (following the
3237 formals list that we just converted. */
3240 const char *another_r_paren = forward_to_next_token_char (end_formals);
3242 if ((*another_r_paren != ')')
3243 || (*(start_formals = forward_to_next_token_char (another_r_paren)) != '('))
3246 if (this_f_list_chain_item)
3249 fprintf (stderr, "\n%s: warning: too few parameter lists in declaration of `%s'\n",
3250 pname, def_dec_p->hash_entry->symbol);
3251 check_source (0, start_formals); /* leave the decl intact */
3253 #endif /* !defined (UNPROTOIZE) */
3259 /* There does appear to be yet another formals list, so loop around
3260 again, and convert it also. */
3264 /* Edit a whole group of formals lists, starting with the rightmost one
3265 from some set of formals lists. This routine is called once (from the
3266 outside) for each function declaration which is converted. It is
3267 recursive however, and it calls itself once for each remaining formal
3268 list that lies to the left of the one it was originally called to work
3269 on. Thus, a whole set gets done in right-to-left order.
3271 This routine returns non-zero if it thinks that it should not be trying
3272 to convert this particular function definition (because the name of the
3273 function doesn't match the one expected). */
3276 edit_formals_lists (end_formals, f_list_count, def_dec_p)
3277 const char *end_formals;
3278 unsigned int f_list_count;
3279 const def_dec_info *def_dec_p;
3281 const char *start_formals;
3284 start_formals = end_formals - 1;
3286 for (; depth; check_source (--start_formals > clean_read_ptr, 0))
3288 switch (*start_formals)
3300 /* start_formals now points to the opening left paren of the formals list. */
3306 const char *next_end;
3308 /* There should be more formal lists to the left of here. */
3310 next_end = start_formals - 1;
3311 check_source (next_end > clean_read_ptr, 0);
3312 while (isspace (*next_end))
3313 check_source (--next_end > clean_read_ptr, 0);
3314 check_source (*next_end == ')', next_end);
3315 check_source (--next_end > clean_read_ptr, 0);
3316 check_source (*next_end == ')', next_end);
3317 if (edit_formals_lists (next_end, f_list_count, def_dec_p))
3321 /* Check that the function name in the header we are working on is the same
3322 as the one we would expect to find. If not, issue a warning and return
3325 if (f_list_count == 0)
3327 const char *expected = def_dec_p->hash_entry->symbol;
3328 const char *func_name_start;
3329 const char *func_name_limit;
3330 size_t func_name_len;
3332 for (func_name_limit = start_formals-1; isspace (*func_name_limit); )
3333 check_source (--func_name_limit > clean_read_ptr, 0);
3335 for (func_name_start = func_name_limit++;
3336 is_id_char (*func_name_start);
3338 check_source (func_name_start > clean_read_ptr, 0);
3340 func_name_len = func_name_limit - func_name_start;
3341 if (func_name_len == 0)
3342 check_source (0, func_name_start);
3343 if (func_name_len != strlen (expected)
3344 || strncmp (func_name_start, expected, func_name_len))
3346 fprintf (stderr, "%s: %d: warning: found `%s' but expected `%s'\n",
3347 shortpath (NULL, def_dec_p->file->hash_entry->symbol),
3348 identify_lineno (func_name_start),
3349 dupnstr (func_name_start, func_name_len),
3355 output_up_to (start_formals);
3358 if (f_list_count == 0)
3359 output_string (def_dec_p->formal_names);
3360 #else /* !defined (UNPROTOIZE) */
3362 unsigned f_list_depth;
3363 const f_list_chain_item *flci_p = def_dec_p->f_list_chain;
3365 /* At this point, the current value of f_list count says how many
3366 links we have to follow through the f_list_chain to get to the
3367 particular formals list that we need to output next. */
3369 for (f_list_depth = 0; f_list_depth < f_list_count; f_list_depth++)
3370 flci_p = flci_p->chain_next;
3371 output_string (flci_p->formals_list);
3373 #endif /* !defined (UNPROTOIZE) */
3375 clean_read_ptr = end_formals - 1;
3379 /* Given a pointer to a byte in the clean text buffer which points to the
3380 beginning of a line that contains a "follower" token for a function
3381 definition header, do whatever is necessary to find the right closing
3382 paren for the rightmost formals list of the function definition header.
3386 find_rightmost_formals_list (clean_text_p)
3387 const char *clean_text_p;
3389 const char *end_formals;
3391 /* We are editing a function definition. The line number we did a seek
3392 to contains the first token which immediately follows the entire set of
3393 formals lists which are part of this particular function definition
3396 Our job now is to scan leftwards in the clean text looking for the
3397 right-paren which is at the end of the function header's rightmost
3400 If we ignore whitespace, this right paren should be the first one we
3401 see which is (ignoring whitespace) immediately followed either by the
3402 open curly-brace beginning the function body or by an alphabetic
3403 character (in the case where the function definition is in old (K&R)
3404 style and there are some declarations of formal parameters). */
3406 /* It is possible that the right paren we are looking for is on the
3407 current line (together with its following token). Just in case that
3408 might be true, we start out here by skipping down to the right end of
3409 the current line before starting our scan. */
3411 for (end_formals = clean_text_p; *end_formals != '\n'; end_formals++)
3417 /* Now scan backwards while looking for the right end of the rightmost
3418 formals list associated with this function definition. */
3422 const char *l_brace_p;
3424 /* Look leftward and try to find a right-paren. */
3426 while (*end_formals != ')')
3428 if (isspace (*end_formals))
3429 while (isspace (*end_formals))
3430 check_source (--end_formals > clean_read_ptr, 0);
3432 check_source (--end_formals > clean_read_ptr, 0);
3435 ch = *(l_brace_p = forward_to_next_token_char (end_formals));
3436 /* Since we are unprotoizing an ANSI-style (prototyped) function
3437 definition, there had better not be anything (except whitespace)
3438 between the end of the ANSI formals list and the beginning of the
3439 function body (i.e. the '{'). */
3441 check_source (ch == '{', l_brace_p);
3444 #else /* !defined (UNPROTOIZE) */
3446 /* Now scan backwards while looking for the right end of the rightmost
3447 formals list associated with this function definition. */
3452 const char *l_brace_p;
3454 /* Look leftward and try to find a right-paren. */
3456 while (*end_formals != ')')
3458 if (isspace (*end_formals))
3459 while (isspace (*end_formals))
3460 check_source (--end_formals > clean_read_ptr, 0);
3462 check_source (--end_formals > clean_read_ptr, 0);
3465 ch = *(l_brace_p = forward_to_next_token_char (end_formals));
3467 /* Since it is possible that we found a right paren before the starting
3468 '{' of the body which IS NOT the one at the end of the real K&R
3469 formals list (say for instance, we found one embedded inside one of
3470 the old K&R formal parameter declarations) we have to check to be
3471 sure that this is in fact the right paren that we were looking for.
3473 The one we were looking for *must* be followed by either a '{' or
3474 by an alphabetic character, while others *cannot* legally be followed
3475 by such characters. */
3477 if ((ch == '{') || isalpha (ch))
3480 /* At this point, we have found a right paren, but we know that it is
3481 not the one we were looking for, so backup one character and keep
3484 check_source (--end_formals > clean_read_ptr, 0);
3487 #endif /* !defined (UNPROTOIZE) */
3494 /* Insert into the output file a totally new declaration for a function
3495 which (up until now) was being called from within the current block
3496 without having been declared at any point such that the declaration
3497 was visible (i.e. in scope) at the point of the call.
3499 We need to add in explicit declarations for all such function calls
3500 in order to get the full benefit of prototype-based function call
3501 parameter type checking. */
3504 add_local_decl (def_dec_p, clean_text_p)
3505 const def_dec_info *def_dec_p;
3506 const char *clean_text_p;
3508 const char *start_of_block;
3509 const char *function_to_edit = def_dec_p->hash_entry->symbol;
3511 /* Don't insert new local explicit declarations unless explicitly requested
3517 /* Setup here to recover from confusing source code detected during this
3518 particular "edit". */
3521 if (setjmp (source_confusion_recovery))
3523 restore_pointers ();
3524 fprintf (stderr, "%s: local declaration for function `%s' not inserted\n",
3525 pname, function_to_edit);
3529 /* We have already done a seek to the start of the line which should
3530 contain *the* open curly brace which begins the block in which we need
3531 to insert an explicit function declaration (to replace the implicit one).
3533 Now we scan that line, starting from the left, until we find the
3534 open curly brace we are looking for. Note that there may actually be
3535 multiple open curly braces on the given line, but we will be happy
3536 with the leftmost one no matter what. */
3538 start_of_block = clean_text_p;
3539 while (*start_of_block != '{' && *start_of_block != '\n')
3540 check_source (++start_of_block < clean_text_limit, 0);
3542 /* Note that the line from the original source could possibly
3543 contain *no* open curly braces! This happens if the line contains
3544 a macro call which expands into a chunk of text which includes a
3545 block (and that block's associated open and close curly braces).
3546 In cases like this, we give up, issue a warning, and do nothing. */
3548 if (*start_of_block != '{')
3552 "\n%s: %d: warning: can't add declaration of `%s' into macro call\n",
3553 def_dec_p->file->hash_entry->symbol, def_dec_p->line,
3554 def_dec_p->hash_entry->symbol);
3558 /* Figure out what a nice (pretty) indentation would be for the new
3559 declaration we are adding. In order to do this, we must scan forward
3560 from the '{' until we find the first line which starts with some
3561 non-whitespace characters (i.e. real "token" material). */
3564 const char *ep = forward_to_next_token_char (start_of_block) - 1;
3567 /* Now we have ep pointing at the rightmost byte of some existing indent
3568 stuff. At least that is the hope.
3570 We can now just scan backwards and find the left end of the existing
3571 indentation string, and then copy it to the output buffer. */
3573 for (sp = ep; isspace (*sp) && *sp != '\n'; sp--)
3576 /* Now write out the open { which began this block, and any following
3577 trash up to and including the last byte of the existing indent that
3582 /* Now we go ahead and insert the new declaration at this point.
3584 If the definition of the given function is in the same file that we
3585 are currently editing, and if its full ANSI declaration normally
3586 would start with the keyword `extern', suppress the `extern'. */
3589 const char *decl = def_dec_p->definition->ansi_decl;
3591 if ((*decl == 'e') && (def_dec_p->file == def_dec_p->definition->file))
3593 output_string (decl);
3596 /* Finally, write out a new indent string, just like the preceding one
3597 that we found. This will typically include a newline as the first
3598 character of the indent string. */
3600 output_bytes (sp, (size_t) (ep - sp) + 1);
3604 /* Given a pointer to a file_info record, and a pointer to the beginning
3605 of a line (in the clean text buffer) which is assumed to contain the
3606 first "follower" token for the first function definition header in the
3607 given file, find a good place to insert some new global function
3608 declarations (which will replace scattered and imprecise implicit ones)
3609 and then insert the new explicit declaration at that point in the file. */
3612 add_global_decls (file_p, clean_text_p)
3613 const file_info *file_p;
3614 const char *clean_text_p;
3616 const def_dec_info *dd_p;
3619 /* Setup here to recover from confusing source code detected during this
3620 particular "edit". */
3623 if (setjmp (source_confusion_recovery))
3625 restore_pointers ();
3626 fprintf (stderr, "%s: global declarations for file `%s' not inserted\n",
3627 pname, shortpath (NULL, file_p->hash_entry->symbol));
3631 /* Start by finding a good location for adding the new explicit function
3632 declarations. To do this, we scan backwards, ignoring whitespace
3633 and comments and other junk until we find either a semicolon, or until
3634 we hit the beginning of the file. */
3636 scan_p = find_rightmost_formals_list (clean_text_p);
3639 if (scan_p < clean_text_base)
3641 check_source (scan_p > clean_read_ptr, 0);
3646 /* scan_p now points either to a semicolon, or to just before the start
3647 of the whole file. */
3649 /* Now scan forward for the first non-whitespace character. In theory,
3650 this should be the first character of the following function definition
3651 header. We will put in the added declarations just prior to that. */
3654 while (isspace (*scan_p))
3658 output_up_to (scan_p);
3660 /* Now write out full prototypes for all of the things that had been
3661 implicitly declared in this file (but only those for which we were
3662 actually able to find unique matching definitions). Avoid duplicates
3663 by marking things that we write out as we go. */
3666 int some_decls_added = 0;
3668 for (dd_p = file_p->defs_decs; dd_p; dd_p = dd_p->next_in_file)
3669 if (dd_p->is_implicit && dd_p->definition && !dd_p->definition->written)
3671 const char *decl = dd_p->definition->ansi_decl;
3673 /* If the function for which we are inserting a declaration is
3674 actually defined later in the same file, then suppress the
3675 leading `extern' keyword (if there is one). */
3677 if (*decl == 'e' && (dd_p->file == dd_p->definition->file))
3680 output_string ("\n");
3681 output_string (decl);
3682 some_decls_added = 1;
3683 ((NONCONST def_dec_info *) dd_p->definition)->written = 1;
3685 if (some_decls_added)
3686 output_string ("\n\n");
3689 /* Unmark all of the definitions that we just marked. */
3691 for (dd_p = file_p->defs_decs; dd_p; dd_p = dd_p->next_in_file)
3692 if (dd_p->definition)
3693 ((NONCONST def_dec_info *) dd_p->definition)->written = 0;
3696 #endif /* !defined (UNPROTOIZE) */
3698 /* Do the editing operation specifically for a function "definition". Note
3699 that editing operations for function "declarations" are handled by a
3700 separate routine above. */
3703 edit_fn_definition (def_dec_p, clean_text_p)
3704 const def_dec_info *def_dec_p;
3705 const char *clean_text_p;
3707 const char *end_formals;
3708 const char *function_to_edit = def_dec_p->hash_entry->symbol;
3710 /* Setup here to recover from confusing source code detected during this
3711 particular "edit". */
3714 if (setjmp (source_confusion_recovery))
3716 restore_pointers ();
3717 fprintf (stderr, "%s: definition of function `%s' not converted\n",
3718 pname, function_to_edit);
3722 end_formals = find_rightmost_formals_list (clean_text_p);
3724 /* end_of_formals now points to the closing right paren of the rightmost
3725 formals list which is actually part of the `header' of the function
3726 definition that we are converting. */
3728 /* If the header of this function definition looks like it declares a
3729 function with a variable number of arguments, and if the way it does
3730 that is different from that way we would like it (i.e. varargs vs.
3731 stdarg) then issue a warning and leave the header unconverted. */
3733 if (other_variable_style_function (def_dec_p->ansi_decl))
3736 fprintf (stderr, "%s: %d: warning: definition of %s not converted\n",
3737 shortpath (NULL, def_dec_p->file->hash_entry->symbol),
3738 identify_lineno (end_formals),
3740 output_up_to (end_formals);
3744 if (edit_formals_lists (end_formals, def_dec_p->f_list_count, def_dec_p))
3746 restore_pointers ();
3747 fprintf (stderr, "%s: definition of function `%s' not converted\n",
3748 pname, function_to_edit);
3752 /* Have to output the last right paren because this never gets flushed by
3753 edit_formals_list. */
3755 output_up_to (end_formals);
3760 const char *semicolon_p;
3761 const char *limit_p;
3763 int had_newlines = 0;
3765 /* Now write out the K&R style formal declarations, one per line. */
3767 decl_p = def_dec_p->formal_decls;
3768 limit_p = decl_p + strlen (decl_p);
3769 for (;decl_p < limit_p; decl_p = semicolon_p + 2)
3771 for (semicolon_p = decl_p; *semicolon_p != ';'; semicolon_p++)
3773 output_string ("\n");
3774 output_string (indent_string);
3775 output_bytes (decl_p, (size_t) ((semicolon_p + 1) - decl_p));
3778 /* If there are no newlines between the end of the formals list and the
3779 start of the body, we should insert one now. */
3781 for (scan_p = end_formals+1; *scan_p != '{'; )
3783 if (*scan_p == '\n')
3788 check_source (++scan_p < clean_text_limit, 0);
3791 output_string ("\n");
3793 #else /* !defined (UNPROTOIZE) */
3794 /* If we are protoizing, there may be some flotsum & jetsum (like comments
3795 and preprocessing directives) after the old formals list but before
3796 the following { and we would like to preserve that stuff while effectively
3797 deleting the existing K&R formal parameter declarations. We do so here
3798 in a rather tricky way. Basically, we white out any stuff *except*
3799 the comments/pp-directives in the original text buffer, then, if there
3800 is anything in this area *other* than whitespace, we output it. */
3802 const char *end_formals_orig;
3803 const char *start_body;
3804 const char *start_body_orig;
3806 const char *scan_orig;
3807 int have_flotsum = 0;
3808 int have_newlines = 0;
3810 for (start_body = end_formals + 1; *start_body != '{';)
3811 check_source (++start_body < clean_text_limit, 0);
3813 end_formals_orig = orig_text_base + (end_formals - clean_text_base);
3814 start_body_orig = orig_text_base + (start_body - clean_text_base);
3815 scan = end_formals + 1;
3816 scan_orig = end_formals_orig + 1;
3817 for (; scan < start_body; scan++, scan_orig++)
3819 if (*scan == *scan_orig)
3821 have_newlines |= (*scan_orig == '\n');
3822 /* Leave identical whitespace alone. */
3823 if (!isspace (*scan_orig))
3824 *((NONCONST char *)scan_orig) = ' '; /* identical - so whiteout */
3830 output_bytes (end_formals_orig + 1,
3831 (size_t) (start_body_orig - end_formals_orig) - 1);
3834 output_string ("\n");
3836 output_string (" ");
3837 clean_read_ptr = start_body - 1;
3839 #endif /* !defined (UNPROTOIZE) */
3842 /* Clean up the clean text buffer. Do this by converting comments and
3843 preprocessor directives into spaces. Also convert line continuations
3844 into whitespace. Also, whiteout string and character literals. */
3847 do_cleaning (new_clean_text_base, new_clean_text_limit)
3848 char *new_clean_text_base;
3849 char *new_clean_text_limit;
3852 int non_whitespace_since_newline = 0;
3854 for (scan_p = new_clean_text_base; scan_p < new_clean_text_limit; scan_p++)
3858 case '/': /* Handle comments. */
3859 if (scan_p[1] != '*')
3861 non_whitespace_since_newline = 1;
3865 while (scan_p[1] != '/' || scan_p[0] != '*')
3867 if (!isspace (*scan_p))
3869 if (++scan_p >= new_clean_text_limit)
3876 case '#': /* Handle pp directives. */
3877 if (non_whitespace_since_newline)
3880 while (scan_p[1] != '\n' || scan_p[0] == '\\')
3882 if (!isspace (*scan_p))
3884 if (++scan_p >= new_clean_text_limit)
3890 case '\'': /* Handle character literals. */
3891 non_whitespace_since_newline = 1;
3892 while (scan_p[1] != '\'' || scan_p[0] == '\\')
3894 if (scan_p[0] == '\\' && !isspace (scan_p[1]))
3896 if (!isspace (*scan_p))
3898 if (++scan_p >= new_clean_text_limit)
3904 case '"': /* Handle string 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 line continuations. */
3919 if (scan_p[1] != '\n')
3925 non_whitespace_since_newline = 0; /* Reset. */
3934 break; /* Whitespace characters. */
3938 non_whitespace_since_newline = 1;
3944 /* Given a pointer to the closing right parenthesis for a particular formals
3945 list (in the clean text buffer) find the corresponding left parenthesis
3946 and return a pointer to it. */
3949 careful_find_l_paren (p)
3955 for (paren_depth = 1, q = p-1; paren_depth; check_source (--q >= clean_text_base, 0))
3970 /* Scan the clean text buffer for cases of function definitions that we
3971 don't really know about because they were preprocessed out when the
3972 aux info files were created.
3974 In this version of protoize/unprotoize we just give a warning for each
3975 one found. A later version may be able to at least unprotoize such
3978 Note that we may easily find all function definitions simply by
3979 looking for places where there is a left paren which is (ignoring
3980 whitespace) immediately followed by either a left-brace or by an
3981 upper or lower case letter. Whenever we find this combination, we
3982 have also found a function definition header.
3984 Finding function *declarations* using syntactic clues is much harder.
3985 I will probably try to do this in a later version though. */
3988 scan_for_missed_items (file_p)
3989 const file_info *file_p;
3991 static const char *scan_p;
3992 const char *limit = clean_text_limit - 3;
3993 static const char *backup_limit;
3995 backup_limit = clean_text_base - 1;
3997 for (scan_p = clean_text_base; scan_p < limit; scan_p++)
4001 static const char *last_r_paren;
4002 const char *ahead_p;
4004 last_r_paren = scan_p;
4006 for (ahead_p = scan_p + 1; isspace (*ahead_p); )
4007 check_source (++ahead_p < limit, limit);
4009 scan_p = ahead_p - 1;
4011 if (isalpha (*ahead_p) || *ahead_p == '{')
4013 const char *last_l_paren;
4014 const int lineno = identify_lineno (ahead_p);
4016 if (setjmp (source_confusion_recovery))
4019 /* We know we have a function definition header. Now skip
4020 leftwards over all of its associated formals lists. */
4024 last_l_paren = careful_find_l_paren (last_r_paren);
4025 for (last_r_paren = last_l_paren-1; isspace (*last_r_paren); )
4026 check_source (--last_r_paren >= backup_limit, backup_limit);
4028 while (*last_r_paren == ')');
4030 if (is_id_char (*last_r_paren))
4032 const char *id_limit = last_r_paren + 1;
4033 const char *id_start;
4035 const def_dec_info *dd_p;
4037 for (id_start = id_limit-1; is_id_char (*id_start); )
4038 check_source (--id_start >= backup_limit, backup_limit);
4040 backup_limit = id_start;
4041 if ((id_length = (size_t) (id_limit - id_start)) == 0)
4045 char *func_name = (char *) alloca (id_length + 1);
4046 static const char * const stmt_keywords[]
4047 = { "if", "else", "do", "while", "for", "switch", "case", "return", 0 };
4048 const char * const *stmt_keyword;
4050 strncpy (func_name, id_start, id_length);
4051 func_name[id_length] = '\0';
4053 /* We must check here to see if we are actually looking at
4054 a statement rather than an actual function call. */
4056 for (stmt_keyword = stmt_keywords; *stmt_keyword; stmt_keyword++)
4057 if (!strcmp (func_name, *stmt_keyword))
4061 fprintf (stderr, "%s: found definition of `%s' at %s(%d)\n",
4064 shortpath (NULL, file_p->hash_entry->symbol),
4065 identify_lineno (id_start));
4067 /* We really should check for a match of the function name
4068 here also, but why bother. */
4070 for (dd_p = file_p->defs_decs; dd_p; dd_p = dd_p->next_in_file)
4071 if (dd_p->is_func_def && dd_p->line == lineno)
4074 /* If we make it here, then we did not know about this
4075 function definition. */
4077 fprintf (stderr, "%s: %d: warning: `%s' excluded by preprocessing\n",
4078 shortpath (NULL, file_p->hash_entry->symbol),
4079 identify_lineno (id_start), func_name);
4080 fprintf (stderr, "%s: function definition not converted\n",
4090 /* Do all editing operations for a single source file (either a "base" file
4091 or an "include" file). To do this we read the file into memory, keep a
4092 virgin copy there, make another cleaned in-core copy of the original file
4093 (i.e. one in which all of the comments and preprocessor directives have
4094 been replaced with whitespace), then use these two in-core copies of the
4095 file to make a new edited in-core copy of the file. Finally, rename the
4096 original file (as a way of saving it), and then write the edited version
4097 of the file from core to a disk file of the same name as the original.
4099 Note that the trick of making a copy of the original sans comments &
4100 preprocessor directives make the editing a whole lot easier. */
4104 const hash_table_entry *hp;
4106 struct stat stat_buf;
4107 const file_info *file_p = hp->fip;
4108 char *new_orig_text_base;
4109 char *new_orig_text_limit;
4110 char *new_clean_text_base;
4111 char *new_clean_text_limit;
4114 int first_definition_in_file;
4116 /* If we are not supposed to be converting this file, or if there is
4117 nothing in there which needs converting, just skip this file. */
4119 if (!needs_to_be_converted (file_p))
4122 convert_filename = file_p->hash_entry->symbol;
4124 /* Convert a file if it is in a directory where we want conversion
4125 and the file is not excluded. */
4127 if (!directory_specified_p (convert_filename)
4128 || file_excluded_p (convert_filename))
4132 /* Don't even mention "system" include files unless we are
4133 protoizing. If we are protoizing, we mention these as a
4134 gentle way of prodding the user to convert his "system"
4135 include files to prototype format. */
4136 && !in_system_include_dir (convert_filename)
4137 #endif /* defined (UNPROTOIZE) */
4139 fprintf (stderr, "%s: `%s' not converted\n",
4140 pname, shortpath (NULL, convert_filename));
4144 /* Let the user know what we are up to. */
4147 fprintf (stderr, "%s: would convert file `%s'\n",
4148 pname, shortpath (NULL, convert_filename));
4150 fprintf (stderr, "%s: converting file `%s'\n",
4151 pname, shortpath (NULL, convert_filename));
4154 /* Find out the size (in bytes) of the original file. */
4156 /* The cast avoids an erroneous warning on AIX. */
4157 if (my_stat ((char *)convert_filename, &stat_buf) == -1)
4159 fprintf (stderr, "%s: can't get status for file `%s': %s\n",
4160 pname, shortpath (NULL, convert_filename), sys_errlist[errno]);
4163 orig_size = stat_buf.st_size;
4165 /* Allocate a buffer to hold the original text. */
4167 orig_text_base = new_orig_text_base = (char *) xmalloc (orig_size + 2);
4168 orig_text_limit = new_orig_text_limit = new_orig_text_base + orig_size;
4170 /* Allocate a buffer to hold the cleaned-up version of the original text. */
4172 clean_text_base = new_clean_text_base = (char *) xmalloc (orig_size + 2);
4173 clean_text_limit = new_clean_text_limit = new_clean_text_base + orig_size;
4174 clean_read_ptr = clean_text_base - 1;
4176 /* Allocate a buffer that will hopefully be large enough to hold the entire
4177 converted output text. As an initial guess for the maximum size of the
4178 output buffer, use 125% of the size of the original + some extra. This
4179 buffer can be expanded later as needed. */
4181 repl_size = orig_size + (orig_size >> 2) + 4096;
4182 repl_text_base = (char *) xmalloc (repl_size + 2);
4183 repl_text_limit = repl_text_base + repl_size - 1;
4184 repl_write_ptr = repl_text_base - 1;
4189 /* Open the file to be converted in READ ONLY mode. */
4191 if ((input_file = my_open (convert_filename, O_RDONLY, 0444)) == -1)
4193 fprintf (stderr, "%s: can't open file `%s' for reading: %s\n",
4194 pname, shortpath (NULL, convert_filename),
4195 sys_errlist[errno]);
4199 /* Read the entire original source text file into the original text buffer
4200 in one swell fwoop. Then figure out where the end of the text is and
4201 make sure that it ends with a newline followed by a null. */
4203 if (safe_read (input_file, new_orig_text_base, orig_size) != orig_size)
4206 fprintf (stderr, "\n%s: error reading input file `%s': %s\n",
4207 pname, shortpath (NULL, convert_filename),
4208 sys_errlist[errno]);
4215 if (orig_size == 0 || orig_text_limit[-1] != '\n')
4217 *new_orig_text_limit++ = '\n';
4221 /* Create the cleaned up copy of the original text. */
4223 memcpy (new_clean_text_base, orig_text_base,
4224 (size_t) (orig_text_limit - orig_text_base));
4225 do_cleaning (new_clean_text_base, new_clean_text_limit);
4230 size_t clean_size = orig_text_limit - orig_text_base;
4231 char *const clean_filename = (char *) alloca (strlen (convert_filename) + 6 + 1);
4233 /* Open (and create) the clean file. */
4235 strcpy (clean_filename, convert_filename);
4236 strcat (clean_filename, ".clean");
4237 if ((clean_file = creat (clean_filename, 0666)) == -1)
4239 fprintf (stderr, "%s: can't create/open clean file `%s': %s\n",
4240 pname, shortpath (NULL, clean_filename),
4241 sys_errlist[errno]);
4245 /* Write the clean file. */
4247 safe_write (clean_file, new_clean_text_base, clean_size, clean_filename);
4253 /* Do a simplified scan of the input looking for things that were not
4254 mentioned in the aux info files because of the fact that they were
4255 in a region of the source which was preprocessed-out (via #if or
4258 scan_for_missed_items (file_p);
4260 /* Setup to do line-oriented forward seeking in the clean text buffer. */
4262 last_known_line_number = 1;
4263 last_known_line_start = clean_text_base;
4265 /* Now get down to business and make all of the necessary edits. */
4268 const def_dec_info *def_dec_p;
4270 first_definition_in_file = 1;
4271 def_dec_p = file_p->defs_decs;
4272 for (; def_dec_p; def_dec_p = def_dec_p->next_in_file)
4274 const char *clean_text_p = seek_to_line (def_dec_p->line);
4276 /* clean_text_p now points to the first character of the line which
4277 contains the `terminator' for the declaration or definition that
4278 we are about to process. */
4282 if (global_flag && def_dec_p->is_func_def && first_definition_in_file)
4284 add_global_decls (def_dec_p->file, clean_text_p);
4285 first_definition_in_file = 0;
4288 /* Don't edit this item if it is already in prototype format or if it
4289 is a function declaration and we have found no corresponding
4292 if (def_dec_p->prototyped
4293 || (!def_dec_p->is_func_def && !def_dec_p->definition))
4296 #endif /* !defined (UNPROTOIZE) */
4298 if (def_dec_p->is_func_def)
4299 edit_fn_definition (def_dec_p, clean_text_p);
4302 if (def_dec_p->is_implicit)
4303 add_local_decl (def_dec_p, clean_text_p);
4305 #endif /* !defined (UNPROTOIZE) */
4306 edit_fn_declaration (def_dec_p, clean_text_p);
4310 /* Finalize things. Output the last trailing part of the original text. */
4312 output_up_to (clean_text_limit - 1);
4314 /* If this is just a test run, stop now and just deallocate the buffers. */
4318 free (new_orig_text_base);
4319 free (new_clean_text_base);
4320 free (repl_text_base);
4324 /* Change the name of the original input file. This is just a quick way of
4325 saving the original file. */
4329 char *new_filename =
4330 (char *) xmalloc (strlen (convert_filename) + strlen (save_suffix) + 2);
4332 strcpy (new_filename, convert_filename);
4333 strcat (new_filename, save_suffix);
4334 if (my_link (convert_filename, new_filename) == -1)
4336 if (errno == EEXIST)
4339 fprintf (stderr, "%s: warning: file `%s' already saved in `%s'\n",
4341 shortpath (NULL, convert_filename),
4342 shortpath (NULL, new_filename));
4346 fprintf (stderr, "%s: can't link file `%s' to `%s': %s\n",
4348 shortpath (NULL, convert_filename),
4349 shortpath (NULL, new_filename),
4350 sys_errlist[errno]);
4356 if (my_unlink (convert_filename) == -1)
4358 fprintf (stderr, "%s: can't delete file `%s': %s\n",
4359 pname, shortpath (NULL, convert_filename), sys_errlist[errno]);
4366 /* Open (and create) the output file. */
4368 if ((output_file = creat (convert_filename, 0666)) == -1)
4370 fprintf (stderr, "%s: can't create/open output file `%s': %s\n",
4371 pname, shortpath (NULL, convert_filename),
4372 sys_errlist[errno]);
4376 /* Write the output file. */
4379 unsigned int out_size = (repl_write_ptr + 1) - repl_text_base;
4381 safe_write (output_file, repl_text_base, out_size, convert_filename);
4384 close (output_file);
4387 /* Deallocate the conversion buffers. */
4389 free (new_orig_text_base);
4390 free (new_clean_text_base);
4391 free (repl_text_base);
4393 /* Change the mode of the output file to match the original file. */
4395 /* The cast avoids an erroneous warning on AIX. */
4396 if (my_chmod ((char *)convert_filename, stat_buf.st_mode) == -1)
4397 fprintf (stderr, "%s: can't change mode of file `%s': %s\n",
4398 pname, shortpath (NULL, convert_filename), sys_errlist[errno]);
4400 /* Note: We would try to change the owner and group of the output file
4401 to match those of the input file here, except that may not be a good
4402 thing to do because it might be misleading. Also, it might not even
4403 be possible to do that (on BSD systems with quotas for instance). */
4406 /* Do all of the individual steps needed to do the protoization (or
4407 unprotoization) of the files referenced in the aux_info files given
4408 in the command line. */
4413 const char * const *base_pp;
4414 const char * const * const end_pps
4415 = &base_source_filenames[n_base_source_files];
4419 #endif /* !defined (UNPROTOIZE) */
4421 /* One-by-one, check (and create if necessary), open, and read all of the
4422 stuff in each aux_info file. After reading each aux_info file, the
4423 aux_info_file just read will be automatically deleted unless the
4424 keep_flag is set. */
4426 for (base_pp = base_source_filenames; base_pp < end_pps; base_pp++)
4427 process_aux_info_file (*base_pp, keep_flag, 0);
4431 /* Also open and read the special SYSCALLS.c aux_info file which gives us
4432 the prototypes for all of the standard system-supplied functions. */
4434 if (nondefault_syscalls_dir)
4436 syscalls_absolute_filename
4437 = (char *) xmalloc (strlen (nondefault_syscalls_dir)
4438 + sizeof (syscalls_filename) + 1);
4439 strcpy (syscalls_absolute_filename, nondefault_syscalls_dir);
4443 syscalls_absolute_filename
4444 = (char *) xmalloc (strlen (default_syscalls_dir)
4445 + sizeof (syscalls_filename) + 1);
4446 strcpy (syscalls_absolute_filename, default_syscalls_dir);
4449 syscalls_len = strlen (syscalls_absolute_filename);
4450 if (*(syscalls_absolute_filename + syscalls_len - 1) != '/')
4452 *(syscalls_absolute_filename + syscalls_len++) = '/';
4453 *(syscalls_absolute_filename + syscalls_len) = '\0';
4455 strcat (syscalls_absolute_filename, syscalls_filename);
4457 /* Call process_aux_info_file in such a way that it does not try to
4458 delete the SYSCALLS aux_info file. */
4460 process_aux_info_file (syscalls_absolute_filename, 1, 1);
4462 #endif /* !defined (UNPROTOIZE) */
4464 /* When we first read in all of the information from the aux_info files
4465 we saved in it descending line number order, because that was likely to
4466 be faster. Now however, we want the chains of def & dec records to
4467 appear in ascending line number order as we get further away from the
4468 file_info record that they hang from. The following line causes all of
4469 these lists to be rearranged into ascending line number order. */
4471 visit_each_hash_node (filename_primary, reverse_def_dec_list);
4475 /* Now do the "real" work. The following line causes each declaration record
4476 to be "visited". For each of these nodes, an attempt is made to match
4477 up the function declaration with a corresponding function definition,
4478 which should have a full prototype-format formals list with it. Once
4479 these match-ups are made, the conversion of the function declarations
4480 to prototype format can be made. */
4482 visit_each_hash_node (function_name_primary, connect_defs_and_decs);
4484 #endif /* !defined (UNPROTOIZE) */
4486 /* Now convert each file that can be converted (and needs to be). */
4488 visit_each_hash_node (filename_primary, edit_file);
4492 /* If we are working in cplusplus mode, try to rename all .c files to .C
4493 files. Don't panic if some of the renames don't work. */
4495 if (cplusplus_flag && !nochange_flag)
4496 visit_each_hash_node (filename_primary, rename_c_file);
4498 #endif /* !defined (UNPROTOIZE) */
4501 static struct option longopts[] =
4503 {"version", 0, 0, 'V'},
4504 {"file_name", 0, 0, 'p'},
4505 {"quiet", 0, 0, 'q'},
4506 {"silent", 0, 0, 'q'},
4507 {"force", 0, 0, 'f'},
4508 {"keep", 0, 0, 'k'},
4509 {"nosave", 0, 0, 'N'},
4510 {"nochange", 0, 0, 'n'},
4511 {"compiler-options", 1, 0, 'c'},
4512 {"exclude", 1, 0, 'x'},
4513 {"directory", 1, 0, 'd'},
4515 {"indent", 1, 0, 'i'},
4517 {"local", 0, 0, 'l'},
4518 {"global", 0, 0, 'g'},
4520 {"syscalls-dir", 1, 0, 'B'},
4532 const char *params = "";
4534 pname = rindex (argv[0], '/');
4535 pname = pname ? pname+1 : argv[0];
4537 cwd_buffer = getpwd ();
4540 fprintf (stderr, "%s: cannot get working directory: %s\n",
4541 pname, sys_errlist[errno]);
4545 /* By default, convert the files in the current directory. */
4546 directory_list = string_list_cons (cwd_buffer, NULL);
4548 while ((c = getopt_long (argc, argv,
4552 "B:c:Cd:gklnNp:qvVx:",
4554 longopts, &longind)) != EOF)
4556 if (c == 0) /* Long option. */
4557 c = longopts[longind].val;
4561 compiler_file_name = optarg;
4565 = string_list_cons (abspath (NULL, optarg), directory_list);
4568 exclude_list = string_list_cons (optarg, exclude_list);
4598 indent_string = optarg;
4600 #else /* !defined (UNPROTOIZE) */
4611 nondefault_syscalls_dir = optarg;
4613 #endif /* !defined (UNPROTOIZE) */
4619 /* Set up compile_params based on -p and -c options. */
4620 munge_compile_params (params);
4622 n_base_source_files = argc - optind;
4624 /* Now actually make a list of the base source filenames. */
4626 base_source_filenames =
4627 (const char **) xmalloc ((n_base_source_files + 1) * sizeof (char *));
4628 n_base_source_files = 0;
4629 for (; optind < argc; optind++)
4631 const char *path = abspath (NULL, argv[optind]);
4632 int len = strlen (path);
4634 if (path[len-1] == 'c' && path[len-2] == '.')
4635 base_source_filenames[n_base_source_files++] = path;
4638 fprintf (stderr, "%s: input file names must have .c suffixes: %s\n",
4639 pname, shortpath (NULL, path));
4645 /* We are only interested in the very first identifier token in the
4646 definition of `va_list', so if there is more junk after that first
4647 identifier token, delete it from the `varargs_style_indicator'. */
4651 for (cp = varargs_style_indicator; isalnum (*cp) || *cp == '_'; cp++)
4654 varargs_style_indicator = savestring (varargs_style_indicator,
4655 cp - varargs_style_indicator);
4657 #endif /* !defined (UNPROTOIZE) */
4664 fprintf (stderr, "%s: %s\n", pname, version_string);