1 /* Protoize program - Original version by Ron Guilmette (rfg@segfault.us.com).
2 Copyright (C) 1989, 92-97, 1998 Free Software Foundation, Inc.
4 This file is part of GNU CC.
6 GNU CC is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2, or (at your option)
11 GNU CC is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with GNU CC; see the file COPYING. If not, write to
18 the Free Software Foundation, 59 Temple Place - Suite 330,
19 Boston, MA 02111-1307, USA. */
21 /* Any reasonable C++ compiler should have all of the same features
22 as __STDC__ plus more, so make sure that __STDC__ is defined if
23 __cplusplus is defined. */
25 #if defined(__cplusplus) && !defined(__STDC__)
27 #endif /* defined(__cplusplus) && !defined(__STDC__) */
29 #if defined(__GNUC__) || defined (__GNUG__)
30 #define VOLATILE volatile
43 /* Users are not supposed to use _POSIX_SOURCE to say the
44 system is a POSIX system. That is not what _POSIX_SOURCE means! -- rms */
45 /* If the user asked for POSIX via _POSIX_SOURCE, turn on POSIX code. */
46 #if defined(_POSIX_SOURCE) && !defined(POSIX)
51 #ifdef POSIX /* We should be able to define _POSIX_SOURCE unconditionally,
52 but some systems respond in buggy ways to it,
53 including SunOS 4.1.1. Which we don't classify as POSIX. */
54 /* In case this is a POSIX system with an ANSI C compiler,
55 ask for definition of all POSIX facilities. */
61 #if ! defined (_WIN32) || defined (__CYGWIN__)
62 #if defined(POSIX) || defined(CONCURRENT)
70 /* Some systems like Linux don't declare rindex if _POSIX_SOURCE is declared,
71 but it normally does declare it. This means that configure thinks we don't
72 need to declare it. Favor using strrchr if it is available. */
77 #define strrchr rindex
82 /* Include getopt.h for the sake of getopt_long.
83 We don't need the declaration of getopt, and it could conflict
84 with something from a system header file, so effectively nullify that. */
85 #define getopt getopt_loser
89 extern char *version_string
;
91 /* Systems which are compatible only with POSIX 1003.1-1988 (but *not*
92 with POSIX 1003.1-1990), e.g. Ultrix 4.2, might not have
93 const qualifiers in the prototypes in the system include files.
94 Unfortunately, this can lead to GCC issuing lots of warnings for
95 calls to the following functions. To eliminate these warnings we
96 provide the following #defines. */
98 #define my_access(file,flag) access((char *)file, flag)
99 #define my_stat(file,pkt) stat((char *)file, pkt)
101 #define my_link(file1, file2) -1
103 #define my_link(file1, file2) link((char *)file1, (char *)file2)
105 #define my_unlink(file) unlink((char *)file)
106 #define my_open(file, mode, flag) open((char *)file, mode, flag)
107 #define my_chmod(file, mode) chmod((char *)file, mode)
109 extern char *getpwd ();
111 static void usage
PROTO ((void)) ATTRIBUTE_NORETURN
;
112 static void aux_info_corrupted
PROTO ((void)) ATTRIBUTE_NORETURN
;
113 static void declare_source_confusing
PROTO ((const char *)) ATTRIBUTE_NORETURN
;
115 /* Aliases for pointers to void.
116 These were made to facilitate compilation with old brain-dead DEC C
117 compilers which didn't properly grok `void*' types. */
119 typedef PTR pointer_type
;
120 typedef const PTR const_pointer_type
;
126 #else /* !defined(POSIX) */
128 /* Declaring stat or __flsbuf with a prototype
129 causes conflicts with system headers on some systems. */
131 #if 0 /* These conflict with stdio.h on some systems. */
133 extern int fprintf (FILE *, const char *, ...);
134 extern int printf (const char *, ...);
135 extern int open (const char *, int, ...);
140 extern int fflush ();
143 #ifndef fputs /* This may have been #defined by "system.h". */
147 extern int unlink ();
148 extern int access ();
150 #if 0 /* size_t from sys/types.h may fail to match GCC.
151 If so, we would get a warning from this. */
152 extern size_t strlen ()
155 #endif /* !defined (POSIX) */
157 /* Look for these where the `const' qualifier is intentionally cast aside. */
161 /* Define a default place to find the SYSCALLS.X file. */
163 #ifndef STD_PROTO_DIR
164 #define STD_PROTO_DIR "/usr/local/lib"
165 #endif /* !defined (STD_PROTO_DIR) */
167 /* Suffix of aux_info files. */
169 static const char * const aux_info_suffix
= ".X";
171 /* String to attach to filenames for saved versions of original files. */
173 static const char * const save_suffix
= ".save";
177 /* File name of the file which contains descriptions of standard system
178 routines. Note that we never actually do anything with this file per se,
179 but we do read in its corresponding aux_info file. */
181 static const char syscalls_filename
[] = "SYSCALLS.c";
183 /* Default place to find the above file. */
185 static const char * const default_syscalls_dir
= STD_PROTO_DIR
;
187 /* Variable to hold the complete absolutized filename of the SYSCALLS.c.X
190 static char * syscalls_absolute_filename
;
192 #endif /* !defined (UNPROTOIZE) */
194 /* Type of the structure that holds information about macro unexpansions. */
196 struct unexpansion_struct
{
197 const char *expanded
;
198 const char *contracted
;
200 typedef struct unexpansion_struct unexpansion
;
202 /* A table of conversions that may need to be made for some (stupid) older
203 operating systems where these types are preprocessor macros rather than
204 typedefs (as they really ought to be).
206 WARNING: The contracted forms must be as small (or smaller) as the
207 expanded forms, or else havoc will ensue. */
209 static const unexpansion unexpansions
[] = {
210 { "struct _iobuf", "FILE" },
214 /* The number of "primary" slots in the hash tables for filenames and for
215 function names. This can be as big or as small as you like, except that
216 it must be a power of two. */
218 #define HASH_TABLE_SIZE (1 << 9)
220 /* Bit mask to use when computing hash values. */
222 static const int hash_mask
= (HASH_TABLE_SIZE
- 1);
224 /* Make a table of default system include directories
225 just as it is done in cccp.c. */
227 #ifndef STANDARD_INCLUDE_DIR
228 #define STANDARD_INCLUDE_DIR "/usr/include"
231 #ifndef LOCAL_INCLUDE_DIR
232 #define LOCAL_INCLUDE_DIR "/usr/local/include"
235 struct default_include
{ const char *fname
;
236 const char *component
;
237 int x1
, x2
; } include_defaults
[]
238 #ifdef INCLUDE_DEFAULTS
242 /* Pick up GNU C++ specific include files. */
243 { GPLUSPLUS_INCLUDE_DIR
, "G++", 1, 1 },
245 /* This is the dir for fixincludes. Put it just before
246 the files that we fix. */
247 { GCC_INCLUDE_DIR
, "GCC", 0, 0 },
248 /* For cross-compilation, this dir name is generated
249 automatically in Makefile.in. */
250 { CROSS_INCLUDE_DIR
, 0, 0, 0 },
251 /* This is another place that the target system's headers might be. */
252 { TOOL_INCLUDE_DIR
, "BINUTILS", 0, 0 },
253 #else /* not CROSS_COMPILE */
254 /* This should be /use/local/include and should come before
255 the fixincludes-fixed header files. */
256 { LOCAL_INCLUDE_DIR
, 0, 0, 1 },
257 /* This is here ahead of GCC_INCLUDE_DIR because assert.h goes here.
258 Likewise, behind LOCAL_INCLUDE_DIR, where glibc puts its assert.h. */
259 { TOOL_INCLUDE_DIR
, "BINUTILS", 0, 0 },
260 /* This is the dir for fixincludes. Put it just before
261 the files that we fix. */
262 { GCC_INCLUDE_DIR
, "GCC", 0, 0 },
263 /* Some systems have an extra dir of include files. */
264 #ifdef SYSTEM_INCLUDE_DIR
265 { SYSTEM_INCLUDE_DIR
, 0, 0, 0 },
267 { STANDARD_INCLUDE_DIR
, 0, 0, 0},
268 #endif /* not CROSS_COMPILE */
271 #endif /* no INCLUDE_DEFAULTS */
273 /* Datatype for lists of directories or filenames. */
277 struct string_list
*next
;
280 /* List of directories in which files should be converted. */
282 struct string_list
*directory_list
;
284 /* List of file names which should not be converted.
285 A file is excluded if the end of its name, following a /,
286 matches one of the names in this list. */
288 struct string_list
*exclude_list
;
290 /* The name of the other style of variable-number-of-parameters functions
291 (i.e. the style that we want to leave unconverted because we don't yet
292 know how to convert them to this style. This string is used in warning
295 /* Also define here the string that we can search for in the parameter lists
296 taken from the .X files which will unambiguously indicate that we have
297 found a varargs style function. */
300 static const char * const other_var_style
= "stdarg";
301 #else /* !defined (UNPROTOIZE) */
302 static const char * const other_var_style
= "varargs";
303 /* Note that this is a string containing the expansion of va_alist.
304 But in `main' we discard all but the first token. */
305 static const char *varargs_style_indicator
= STRINGIFY (va_alist
);
306 #endif /* !defined (UNPROTOIZE) */
308 /* The following two types are used to create hash tables. In this program,
309 there are two hash tables which are used to store and quickly lookup two
310 different classes of strings. The first type of strings stored in the
311 first hash table are absolute filenames of files which protoize needs to
312 know about. The second type of strings (stored in the second hash table)
313 are function names. It is this second class of strings which really
314 inspired the use of the hash tables, because there may be a lot of them. */
316 typedef struct hash_table_entry_struct hash_table_entry
;
318 /* Do some typedefs so that we don't have to write "struct" so often. */
320 typedef struct def_dec_info_struct def_dec_info
;
321 typedef struct file_info_struct file_info
;
322 typedef struct f_list_chain_item_struct f_list_chain_item
;
324 /* In the struct below, note that the "_info" field has two different uses
325 depending on the type of hash table we are in (i.e. either the filenames
326 hash table or the function names hash table). In the filenames hash table
327 the info fields of the entries point to the file_info struct which is
328 associated with each filename (1 per filename). In the function names
329 hash table, the info field points to the head of a singly linked list of
330 def_dec_info entries which are all defs or decs of the function whose
331 name is pointed to by the "symbol" field. Keeping all of the defs/decs
332 for a given function name on a special list specifically for that function
333 name makes it quick and easy to find out all of the important information
334 about a given (named) function. */
336 struct hash_table_entry_struct
{
337 hash_table_entry
* hash_next
; /* -> to secondary entries */
338 const char * symbol
; /* -> to the hashed string */
340 const def_dec_info
* _ddip
;
344 #define ddip _info._ddip
345 #define fip _info._fip
347 /* Define a type specifically for our two hash tables. */
349 typedef hash_table_entry hash_table
[HASH_TABLE_SIZE
];
351 /* The following struct holds all of the important information about any
352 single filename (e.g. file) which we need to know about. */
354 struct file_info_struct
{
355 const hash_table_entry
* hash_entry
; /* -> to associated hash entry */
356 const def_dec_info
* defs_decs
; /* -> to chain of defs/decs */
357 time_t mtime
; /* Time of last modification. */
360 /* Due to the possibility that functions may return pointers to functions,
361 (which may themselves have their own parameter lists) and due to the
362 fact that returned pointers-to-functions may be of type "pointer-to-
363 function-returning-pointer-to-function" (ad nauseum) we have to keep
364 an entire chain of ANSI style formal parameter lists for each function.
366 Normally, for any given function, there will only be one formals list
367 on the chain, but you never know.
369 Note that the head of each chain of formals lists is pointed to by the
370 `f_list_chain' field of the corresponding def_dec_info record.
372 For any given chain, the item at the head of the chain is the *leftmost*
373 parameter list seen in the actual C language function declaration. If
374 there are other members of the chain, then these are linked in left-to-right
375 order from the head of the chain. */
377 struct f_list_chain_item_struct
{
378 const f_list_chain_item
* chain_next
; /* -> to next item on chain */
379 const char * formals_list
; /* -> to formals list string */
382 /* The following struct holds all of the important information about any
383 single function definition or declaration which we need to know about.
384 Note that for unprotoize we don't need to know very much because we
385 never even create records for stuff that we don't intend to convert
386 (like for instance defs and decs which are already in old K&R format
387 and "implicit" function declarations). */
389 struct def_dec_info_struct
{
390 const def_dec_info
* next_in_file
; /* -> to rest of chain for file */
391 file_info
* file
; /* -> file_info for containing file */
392 int line
; /* source line number of def/dec */
393 const char * ansi_decl
; /* -> left end of ansi decl */
394 hash_table_entry
* hash_entry
; /* -> hash entry for function name */
395 unsigned int is_func_def
; /* = 0 means this is a declaration */
396 const def_dec_info
* next_for_func
; /* -> to rest of chain for func name */
397 unsigned int f_list_count
; /* count of formals lists we expect */
398 char prototyped
; /* = 0 means already prototyped */
400 const f_list_chain_item
* f_list_chain
; /* -> chain of formals lists */
401 const def_dec_info
* definition
; /* -> def/dec containing related def */
402 char is_static
; /* = 0 means visibility is "extern" */
403 char is_implicit
; /* != 0 for implicit func decl's */
404 char written
; /* != 0 means written for implicit */
405 #else /* !defined (UNPROTOIZE) */
406 const char * formal_names
; /* -> to list of names of formals */
407 const char * formal_decls
; /* -> to string of formal declarations */
408 #endif /* !defined (UNPROTOIZE) */
411 /* Pointer to the tail component of the filename by which this program was
412 invoked. Used everywhere in error and warning messages. */
414 static const char *pname
;
416 /* Error counter. Will be non-zero if we should give up at the next convenient
419 static int errors
= 0;
422 /* ??? These comments should say what the flag mean as well as the options
425 /* File name to use for running gcc. Allows GCC 2 to be named
426 something other than gcc. */
427 static const char *compiler_file_name
= "gcc";
429 static int version_flag
= 0; /* Print our version number. */
430 static int quiet_flag
= 0; /* Don't print messages normally. */
431 static int nochange_flag
= 0; /* Don't convert, just say what files
432 we would have converted. */
433 static int nosave_flag
= 0; /* Don't save the old version. */
434 static int keep_flag
= 0; /* Don't delete the .X files. */
435 static const char ** compile_params
= 0; /* Option string for gcc. */
437 static const char *indent_string
= " "; /* Indentation for newly
438 inserted parm decls. */
439 #else /* !defined (UNPROTOIZE) */
440 static int local_flag
= 0; /* Insert new local decls (when?). */
441 static int global_flag
= 0; /* set by -g option */
442 static int cplusplus_flag
= 0; /* Rename converted files to *.C. */
443 static const char *nondefault_syscalls_dir
= 0; /* Dir to look for
445 #endif /* !defined (UNPROTOIZE) */
447 /* An index into the compile_params array where we should insert the source
448 file name when we are ready to exec the C compiler. A zero value indicates
449 that we have not yet called munge_compile_params. */
451 static int input_file_name_index
= 0;
453 /* An index into the compile_params array where we should insert the filename
454 for the aux info file, when we run the C compiler. */
455 static int aux_info_file_name_index
= 0;
457 /* Count of command line arguments which were "filename" arguments. */
459 static int n_base_source_files
= 0;
461 /* Points to a malloc'ed list of pointers to all of the filenames of base
462 source files which were specified on the command line. */
464 static const char **base_source_filenames
;
466 /* Line number of the line within the current aux_info file that we
467 are currently processing. Used for error messages in case the prototypes
468 info file is corrupted somehow. */
470 static int current_aux_info_lineno
;
472 /* Pointer to the name of the source file currently being converted. */
474 static const char *convert_filename
;
476 /* Pointer to relative root string (taken from aux_info file) which indicates
477 where directory the user was in when he did the compilation step that
478 produced the containing aux_info file. */
480 static const char *invocation_filename
;
482 /* Pointer to the base of the input buffer that holds the original text for the
483 source file currently being converted. */
485 static const char *orig_text_base
;
487 /* Pointer to the byte just beyond the end of the input buffer that holds the
488 original text for the source file currently being converted. */
490 static const char *orig_text_limit
;
492 /* Pointer to the base of the input buffer that holds the cleaned text for the
493 source file currently being converted. */
495 static const char *clean_text_base
;
497 /* Pointer to the byte just beyond the end of the input buffer that holds the
498 cleaned text for the source file currently being converted. */
500 static const char *clean_text_limit
;
502 /* Pointer to the last byte in the cleaned text buffer that we have already
503 (virtually) copied to the output buffer (or decided to ignore). */
505 static const char * clean_read_ptr
;
507 /* Pointer to the base of the output buffer that holds the replacement text
508 for the source file currently being converted. */
510 static char *repl_text_base
;
512 /* Pointer to the byte just beyond the end of the output buffer that holds the
513 replacement text for the source file currently being converted. */
515 static char *repl_text_limit
;
517 /* Pointer to the last byte which has been stored into the output buffer.
518 The next byte to be stored should be stored just past where this points
521 static char * repl_write_ptr
;
523 /* Pointer into the cleaned text buffer for the source file we are currently
524 converting. This points to the first character of the line that we last
525 did a "seek_to_line" to (see below). */
527 static const char *last_known_line_start
;
529 /* Number of the line (in the cleaned text buffer) that we last did a
530 "seek_to_line" to. Will be one if we just read a new source file
531 into the cleaned text buffer. */
533 static int last_known_line_number
;
535 /* The filenames hash table. */
537 static hash_table filename_primary
;
539 /* The function names hash table. */
541 static hash_table function_name_primary
;
543 /* The place to keep the recovery address which is used only in cases where
544 we get hopelessly confused by something in the cleaned original text. */
546 static jmp_buf source_confusion_recovery
;
548 /* A pointer to the current directory filename (used by abspath). */
550 static char *cwd_buffer
;
552 /* A place to save the read pointer until we are sure that an individual
553 attempt at editing will succeed. */
555 static const char * saved_clean_read_ptr
;
557 /* A place to save the write pointer until we are sure that an individual
558 attempt at editing will succeed. */
560 static char * saved_repl_write_ptr
;
562 /* Forward declaration. */
564 static const char *shortpath ();
576 static char buffer
[30];
580 if (e
> 0 && e
< sys_nerr
)
581 return sys_errlist
[e
];
583 sprintf (buffer
, "Unknown error %d", e
);
588 /* Allocate some space, but check that the allocation was successful. */
589 /* alloca.c uses this, so don't make it static. */
595 register pointer_type rv
= (pointer_type
) malloc (byte_count
);
598 fprintf (stderr
, "\n%s: virtual memory exceeded\n", pname
);
599 exit (FATAL_EXIT_CODE
);
604 /* Reallocate some space, but check that the reallocation was successful. */
607 xrealloc (old_space
, byte_count
)
608 pointer_type old_space
;
611 register pointer_type rv
= (pointer_type
) realloc (old_space
, byte_count
);
614 fprintf (stderr
, "\n%s: virtual memory exceeded\n", pname
);
615 exit (FATAL_EXIT_CODE
);
620 /* Deallocate the area pointed to by an arbitrary pointer, but first, strip
621 the `const' qualifier from it and also make sure that the pointer value
626 const_pointer_type p
;
629 free ((NONCONST pointer_type
) p
);
632 /* Make a copy of a string INPUT with size SIZE. */
635 savestring (input
, size
)
639 char *output
= (char *) xmalloc (size
+ 1);
640 strcpy (output
, input
);
644 /* Make a copy of the concatenation of INPUT1 and INPUT2. */
647 savestring2 (input1
, size1
, input2
, size2
)
653 char *output
= (char *) xmalloc (size1
+ size2
+ 1);
654 strcpy (output
, input1
);
655 strcpy (&output
[size1
], input2
);
659 /* More 'friendly' abort that prints the line and file.
660 config.h can #define abort fancy_abort if you like that sort of thing. */
665 fprintf (stderr
, "%s: internal abort\n", pname
);
666 exit (FATAL_EXIT_CODE
);
669 /* Make a duplicate of the first N bytes of a given string in a newly
677 char *ret_val
= (char *) xmalloc (n
+ 1);
679 strncpy (ret_val
, s
, n
);
684 /* Return a pointer to the first occurrence of s2 within s1 or NULL if s2
685 does not occur within s1. Assume neither s1 nor s2 are null pointers. */
690 const char *const s2
;
698 for (p1
= s1
, p2
= s2
; (c
= *p2
); p1
++, p2
++)
708 /* Read LEN bytes at PTR from descriptor DESC, for file FILENAME,
709 retrying if necessary. Return the actual number of bytes read. */
712 safe_read (desc
, ptr
, len
)
719 int nchars
= read (desc
, ptr
, left
);
736 /* Write LEN bytes at PTR to descriptor DESC,
737 retrying if necessary, and treating any real error as fatal. */
740 safe_write (desc
, ptr
, len
, out_fname
)
747 int written
= write (desc
, ptr
, len
);
750 int errno_val
= errno
;
752 if (errno_val
== EINTR
)
755 fprintf (stderr
, "%s: error writing file `%s': %s\n",
756 pname
, shortpath (NULL
, out_fname
), xstrerror (errno_val
));
764 /* Get setup to recover in case the edit we are about to do goes awry. */
769 saved_clean_read_ptr
= clean_read_ptr
;
770 saved_repl_write_ptr
= repl_write_ptr
;
773 /* Call this routine to recover our previous state whenever something looks
774 too confusing in the source code we are trying to edit. */
779 clean_read_ptr
= saved_clean_read_ptr
;
780 repl_write_ptr
= saved_repl_write_ptr
;
783 /* Return true if the given character is a valid identifier character. */
789 return (ISALNUM (ch
) || (ch
== '_') || (ch
== '$'));
792 /* Give a message indicating the proper way to invoke this program and then
793 exit with non-zero status. */
799 fprintf (stderr
, "%s: usage '%s [ -VqfnkN ] [ -i <istring> ] [ filename ... ]'\n",
801 #else /* !defined (UNPROTOIZE) */
802 fprintf (stderr
, "%s: usage '%s [ -VqfnkNlgC ] [ -B <dirname> ] [ filename ... ]'\n",
804 #endif /* !defined (UNPROTOIZE) */
805 exit (FATAL_EXIT_CODE
);
808 /* Return true if the given filename (assumed to be an absolute filename)
809 designates a file residing anywhere beneath any one of the "system"
810 include directories. */
813 in_system_include_dir (path
)
816 struct default_include
*p
;
819 abort (); /* Must be an absolutized filename. */
821 for (p
= include_defaults
; p
->fname
; p
++)
822 if (!strncmp (path
, p
->fname
, strlen (p
->fname
))
823 && path
[strlen (p
->fname
)] == '/')
829 /* Return true if the given filename designates a file that the user has
830 read access to and for which the user has write access to the containing
834 file_could_be_converted (const char *path
)
836 char *const dir_name
= (char *) alloca (strlen (path
) + 1);
838 if (my_access (path
, R_OK
))
842 char *dir_last_slash
;
844 strcpy (dir_name
, path
);
845 dir_last_slash
= strrchr (dir_name
, '/');
847 *dir_last_slash
= '\0';
849 abort (); /* Should have been an absolutized filename. */
852 if (my_access (path
, W_OK
))
858 /* Return true if the given filename designates a file that we are allowed
859 to modify. Files which we should not attempt to modify are (a) "system"
860 include files, and (b) files which the user doesn't have write access to,
861 and (c) files which reside in directories which the user doesn't have
862 write access to. Unless requested to be quiet, give warnings about
863 files that we will not try to convert for one reason or another. An
864 exception is made for "system" include files, which we never try to
865 convert and for which we don't issue the usual warnings. */
868 file_normally_convertible (const char *path
)
870 char *const dir_name
= alloca (strlen (path
) + 1);
872 if (in_system_include_dir (path
))
876 char *dir_last_slash
;
878 strcpy (dir_name
, path
);
879 dir_last_slash
= strrchr (dir_name
, '/');
881 *dir_last_slash
= '\0';
883 abort (); /* Should have been an absolutized filename. */
886 if (my_access (path
, R_OK
))
889 fprintf (stderr
, "%s: warning: no read access for file `%s'\n",
890 pname
, shortpath (NULL
, path
));
894 if (my_access (path
, W_OK
))
897 fprintf (stderr
, "%s: warning: no write access for file `%s'\n",
898 pname
, shortpath (NULL
, path
));
902 if (my_access (dir_name
, W_OK
))
905 fprintf (stderr
, "%s: warning: no write access for dir containing `%s'\n",
906 pname
, shortpath (NULL
, path
));
916 /* Return true if the given file_info struct refers to the special SYSCALLS.c.X
917 file. Return false otherwise. */
920 is_syscalls_file (fi_p
)
921 const file_info
*fi_p
;
923 char const *f
= fi_p
->hash_entry
->symbol
;
924 size_t fl
= strlen (f
), sysl
= sizeof (syscalls_filename
) - 1;
925 return sysl
<= fl
&& strcmp (f
+ fl
- sysl
, syscalls_filename
) == 0;
928 #endif /* !defined (UNPROTOIZE) */
930 /* Check to see if this file will need to have anything done to it on this
931 run. If there is nothing in the given file which both needs conversion
932 and for which we have the necessary stuff to do the conversion, return
933 false. Otherwise, return true.
935 Note that (for protoize) it is only valid to call this function *after*
936 the connections between declarations and definitions have all been made
937 by connect_defs_and_decs. */
940 needs_to_be_converted (file_p
)
941 const file_info
*file_p
;
943 const def_dec_info
*ddp
;
947 if (is_syscalls_file (file_p
))
950 #endif /* !defined (UNPROTOIZE) */
952 for (ddp
= file_p
->defs_decs
; ddp
; ddp
= ddp
->next_in_file
)
958 /* ... and if we a protoizing and this function is in old style ... */
960 /* ... and if this a definition or is a decl with an associated def ... */
961 && (ddp
->is_func_def
|| (!ddp
->is_func_def
&& ddp
->definition
))
963 #else /* defined (UNPROTOIZE) */
965 /* ... and if we are unprotoizing and this function is in new style ... */
968 #endif /* defined (UNPROTOIZE) */
970 /* ... then the containing file needs converting. */
975 /* Return 1 if the file name NAME is in a directory
976 that should be converted. */
979 directory_specified_p (name
)
982 struct string_list
*p
;
984 for (p
= directory_list
; p
; p
= p
->next
)
985 if (!strncmp (name
, p
->name
, strlen (p
->name
))
986 && name
[strlen (p
->name
)] == '/')
988 const char *q
= name
+ strlen (p
->name
) + 1;
990 /* If there are more slashes, it's in a subdir, so
991 this match doesn't count. */
1003 /* Return 1 if the file named NAME should be excluded from conversion. */
1006 file_excluded_p (name
)
1009 struct string_list
*p
;
1010 int len
= strlen (name
);
1012 for (p
= exclude_list
; p
; p
= p
->next
)
1013 if (!strcmp (name
+ len
- strlen (p
->name
), p
->name
)
1014 && name
[len
- strlen (p
->name
) - 1] == '/')
1020 /* Construct a new element of a string_list.
1021 STRING is the new element value, and REST holds the remaining elements. */
1023 static struct string_list
*
1024 string_list_cons (string
, rest
)
1026 struct string_list
*rest
;
1028 struct string_list
*temp
1029 = (struct string_list
*) xmalloc (sizeof (struct string_list
));
1032 temp
->name
= string
;
1036 /* ??? The GNU convention for mentioning function args in its comments
1037 is to capitalize them. So change "hash_tab_p" to HASH_TAB_P below.
1038 Likewise for all the other functions. */
1040 /* Given a hash table, apply some function to each node in the table. The
1041 table to traverse is given as the "hash_tab_p" argument, and the
1042 function to be applied to each node in the table is given as "func"
1046 visit_each_hash_node (hash_tab_p
, func
)
1047 const hash_table_entry
*hash_tab_p
;
1050 const hash_table_entry
*primary
;
1052 for (primary
= hash_tab_p
; primary
< &hash_tab_p
[HASH_TABLE_SIZE
]; primary
++)
1053 if (primary
->symbol
)
1055 hash_table_entry
*second
;
1058 for (second
= primary
->hash_next
; second
; second
= second
->hash_next
)
1063 /* Initialize all of the fields of a new hash table entry, pointed
1064 to by the "p" parameter. Note that the space to hold the entry
1065 is assumed to have already been allocated before this routine is
1068 static hash_table_entry
*
1070 hash_table_entry
*p
;
1073 p
->hash_next
= NULL
;
1074 p
->symbol
= savestring (s
, strlen (s
));
1080 /* Look for a particular function name or filename in the particular
1081 hash table indicated by "hash_tab_p". If the name is not in the
1082 given hash table, add it. Either way, return a pointer to the
1083 hash table entry for the given name. */
1085 static hash_table_entry
*
1086 lookup (hash_tab_p
, search_symbol
)
1087 hash_table_entry
*hash_tab_p
;
1088 const char *search_symbol
;
1091 const char *search_symbol_char_p
= search_symbol
;
1092 hash_table_entry
*p
;
1094 while (*search_symbol_char_p
)
1095 hash_value
+= *search_symbol_char_p
++;
1096 hash_value
&= hash_mask
;
1097 p
= &hash_tab_p
[hash_value
];
1099 return add_symbol (p
, search_symbol
);
1100 if (!strcmp (p
->symbol
, search_symbol
))
1102 while (p
->hash_next
)
1105 if (!strcmp (p
->symbol
, search_symbol
))
1108 p
->hash_next
= (hash_table_entry
*) xmalloc (sizeof (hash_table_entry
));
1110 return add_symbol (p
, search_symbol
);
1113 /* Throw a def/dec record on the junk heap.
1115 Also, since we are not using this record anymore, free up all of the
1116 stuff it pointed to. */
1122 xfree (p
->ansi_decl
);
1126 const f_list_chain_item
* curr
;
1127 const f_list_chain_item
* next
;
1129 for (curr
= p
->f_list_chain
; curr
; curr
= next
)
1131 next
= curr
->chain_next
;
1135 #endif /* !defined (UNPROTOIZE) */
1140 /* Unexpand as many macro symbol as we can find.
1142 If the given line must be unexpanded, make a copy of it in the heap and
1143 return a pointer to the unexpanded copy. Otherwise return NULL. */
1146 unexpand_if_needed (aux_info_line
)
1147 const char *aux_info_line
;
1149 static char *line_buf
= 0;
1150 static int line_buf_size
= 0;
1151 const unexpansion
*unexp_p
;
1152 int got_unexpanded
= 0;
1154 char *copy_p
= line_buf
;
1158 line_buf_size
= 1024;
1159 line_buf
= (char *) xmalloc (line_buf_size
);
1164 /* Make a copy of the input string in line_buf, expanding as necessary. */
1166 for (s
= aux_info_line
; *s
!= '\n'; )
1168 for (unexp_p
= unexpansions
; unexp_p
->expanded
; unexp_p
++)
1170 const char *in_p
= unexp_p
->expanded
;
1171 size_t len
= strlen (in_p
);
1173 if (*s
== *in_p
&& !strncmp (s
, in_p
, len
) && !is_id_char (s
[len
]))
1175 int size
= strlen (unexp_p
->contracted
);
1177 if (copy_p
+ size
- line_buf
>= line_buf_size
)
1179 int offset
= copy_p
- line_buf
;
1181 line_buf_size
+= size
;
1182 line_buf
= (char *) xrealloc (line_buf
, line_buf_size
);
1183 copy_p
= line_buf
+ offset
;
1185 strcpy (copy_p
, unexp_p
->contracted
);
1188 /* Assume the there will not be another replacement required
1189 within the text just replaced. */
1192 goto continue_outer
;
1195 if (copy_p
- line_buf
== line_buf_size
)
1197 int offset
= copy_p
- line_buf
;
1199 line_buf
= (char *) xrealloc (line_buf
, line_buf_size
);
1200 copy_p
= line_buf
+ offset
;
1205 if (copy_p
+ 2 - line_buf
>= line_buf_size
)
1207 int offset
= copy_p
- line_buf
;
1209 line_buf
= (char *) xrealloc (line_buf
, line_buf_size
);
1210 copy_p
= line_buf
+ offset
;
1215 return (got_unexpanded
? savestring (line_buf
, copy_p
- line_buf
) : 0);
1218 /* Return the absolutized filename for the given relative
1219 filename. Note that if that filename is already absolute, it may
1220 still be returned in a modified form because this routine also
1221 eliminates redundant slashes and single dots and eliminates double
1222 dots to get a shortest possible filename from the given input
1223 filename. The absolutization of relative filenames is made by
1224 assuming that the given filename is to be taken as relative to
1225 the first argument (cwd) or to the current directory if cwd is
1229 abspath (cwd
, rel_filename
)
1231 const char *rel_filename
;
1233 /* Setup the current working directory as needed. */
1234 const char *cwd2
= (cwd
) ? cwd
: cwd_buffer
;
1235 char *const abs_buffer
1236 = (char *) alloca (strlen (cwd2
) + strlen (rel_filename
) + 2);
1237 char *endp
= abs_buffer
;
1240 /* Copy the filename (possibly preceded by the current working
1241 directory name) into the absolutization buffer. */
1246 if (rel_filename
[0] != '/')
1249 while ((*endp
++ = *src_p
++))
1251 *(endp
-1) = '/'; /* overwrite null */
1253 src_p
= rel_filename
;
1254 while ((*endp
++ = *src_p
++))
1258 /* Now make a copy of abs_buffer into abs_buffer, shortening the
1259 filename (by taking out slashes and dots) as we go. */
1261 outp
= inp
= abs_buffer
;
1262 *outp
++ = *inp
++; /* copy first slash */
1265 *outp
++ = *inp
++; /* copy second slash */
1271 else if (inp
[0] == '/' && outp
[-1] == '/')
1276 else if (inp
[0] == '.' && outp
[-1] == '/')
1280 else if (inp
[1] == '/')
1285 else if ((inp
[1] == '.') && (inp
[2] == 0 || inp
[2] == '/'))
1287 inp
+= (inp
[2] == '/') ? 3 : 2;
1289 while (outp
>= abs_buffer
&& *outp
!= '/')
1291 if (outp
< abs_buffer
)
1293 /* Catch cases like /.. where we try to backup to a
1294 point above the absolute root of the logical file
1297 fprintf (stderr
, "%s: invalid file name: %s\n",
1298 pname
, rel_filename
);
1299 exit (FATAL_EXIT_CODE
);
1308 /* On exit, make sure that there is a trailing null, and make sure that
1309 the last character of the returned string is *not* a slash. */
1312 if (outp
[-1] == '/')
1315 /* Make a copy (in the heap) of the stuff left in the absolutization
1316 buffer and return a pointer to the copy. */
1318 return savestring (abs_buffer
, outp
- abs_buffer
);
1321 /* Given a filename (and possibly a directory name from which the filename
1322 is relative) return a string which is the shortest possible
1323 equivalent for the corresponding full (absolutized) filename. The
1324 shortest possible equivalent may be constructed by converting the
1325 absolutized filename to be a relative filename (i.e. relative to
1326 the actual current working directory). However if a relative filename
1327 is longer, then the full absolute filename is returned.
1331 Note that "simple-minded" conversion of any given type of filename (either
1332 relative or absolute) may not result in a valid equivalent filename if any
1333 subpart of the original filename is actually a symbolic link. */
1336 shortpath (cwd
, filename
)
1338 const char *filename
;
1342 char *cwd_p
= cwd_buffer
;
1344 int unmatched_slash_count
= 0;
1345 size_t filename_len
= strlen (filename
);
1347 path_p
= abspath (cwd
, filename
);
1348 rel_buf_p
= rel_buffer
= (char *) xmalloc (filename_len
);
1350 while (*cwd_p
&& (*cwd_p
== *path_p
))
1355 if (!*cwd_p
&& (!*path_p
|| *path_p
== '/')) /* whole pwd matched */
1357 if (!*path_p
) /* input *is* the current path! */
1368 while (*cwd_p
!= '/') /* backup to last slash */
1375 unmatched_slash_count
++;
1378 /* Find out how many directory levels in cwd were *not* matched. */
1380 if (*cwd_p
++ == '/')
1381 unmatched_slash_count
++;
1383 /* Now we know how long the "short name" will be.
1384 Reject it if longer than the input. */
1385 if (unmatched_slash_count
* 3 + strlen (path_p
) >= filename_len
)
1388 /* For each of them, put a `../' at the beginning of the short name. */
1389 while (unmatched_slash_count
--)
1391 /* Give up if the result gets to be longer
1392 than the absolute path name. */
1393 if (rel_buffer
+ filename_len
<= rel_buf_p
+ 3)
1400 /* Then tack on the unmatched part of the desired file's name. */
1403 if (rel_buffer
+ filename_len
<= rel_buf_p
)
1406 while ((*rel_buf_p
++ = *path_p
++));
1409 if (*(rel_buf_p
-1) == '/')
1410 *--rel_buf_p
= '\0';
1415 /* Lookup the given filename in the hash table for filenames. If it is a
1416 new one, then the hash table info pointer will be null. In this case,
1417 we create a new file_info record to go with the filename, and we initialize
1418 that record with some reasonable values. */
1420 /* FILENAME was const, but that causes a warning on AIX when calling stat.
1421 That is probably a bug in AIX, but might as well avoid the warning. */
1424 find_file (filename
, do_not_stat
)
1428 hash_table_entry
*hash_entry_p
;
1430 hash_entry_p
= lookup (filename_primary
, filename
);
1431 if (hash_entry_p
->fip
)
1432 return hash_entry_p
->fip
;
1435 struct stat stat_buf
;
1436 file_info
*file_p
= (file_info
*) xmalloc (sizeof (file_info
));
1438 /* If we cannot get status on any given source file, give a warning
1439 and then just set its time of last modification to infinity. */
1442 stat_buf
.st_mtime
= (time_t) 0;
1445 if (my_stat (filename
, &stat_buf
) == -1)
1447 int errno_val
= errno
;
1448 fprintf (stderr
, "%s: %s: can't get status: %s\n",
1449 pname
, shortpath (NULL
, filename
),
1450 xstrerror (errno_val
));
1451 stat_buf
.st_mtime
= (time_t) -1;
1455 hash_entry_p
->fip
= file_p
;
1456 file_p
->hash_entry
= hash_entry_p
;
1457 file_p
->defs_decs
= NULL
;
1458 file_p
->mtime
= stat_buf
.st_mtime
;
1463 /* Generate a fatal error because some part of the aux_info file is
1467 aux_info_corrupted ()
1469 fprintf (stderr
, "\n%s: fatal error: aux info file corrupted at line %d\n",
1470 pname
, current_aux_info_lineno
);
1471 exit (FATAL_EXIT_CODE
);
1474 /* ??? This comment is vague. Say what the condition is for. */
1475 /* Check to see that a condition is true. This is kind of like an assert. */
1478 check_aux_info (cond
)
1482 aux_info_corrupted ();
1485 /* Given a pointer to the closing right parenthesis for a particular formals
1486 list (in an aux_info file) find the corresponding left parenthesis and
1487 return a pointer to it. */
1490 find_corresponding_lparen (p
)
1496 for (paren_depth
= 1, q
= p
-1; paren_depth
; q
--)
1511 /* Given a line from an aux info file, and a time at which the aux info
1512 file it came from was created, check to see if the item described in
1513 the line comes from a file which has been modified since the aux info
1514 file was created. If so, return non-zero, else return zero. */
1517 referenced_file_is_newer (l
, aux_info_mtime
)
1519 time_t aux_info_mtime
;
1525 check_aux_info (l
[0] == '/');
1526 check_aux_info (l
[1] == '*');
1527 check_aux_info (l
[2] == ' ');
1530 const char *filename_start
= p
= l
+ 3;
1534 filename
= (char *) alloca ((size_t) (p
- filename_start
) + 1);
1535 strncpy (filename
, filename_start
, (size_t) (p
- filename_start
));
1536 filename
[p
-filename_start
] = '\0';
1539 /* Call find_file to find the file_info record associated with the file
1540 which contained this particular def or dec item. Note that this call
1541 may cause a new file_info record to be created if this is the first time
1542 that we have ever known about this particular file. */
1544 fi_p
= find_file (abspath (invocation_filename
, filename
), 0);
1546 return (fi_p
->mtime
> aux_info_mtime
);
1549 /* Given a line of info from the aux_info file, create a new
1550 def_dec_info record to remember all of the important information about
1551 a function definition or declaration.
1553 Link this record onto the list of such records for the particular file in
1554 which it occurred in proper (descending) line number order (for now).
1556 If there is an identical record already on the list for the file, throw
1557 this one away. Doing so takes care of the (useless and troublesome)
1558 duplicates which are bound to crop up due to multiple inclusions of any
1559 given individual header file.
1561 Finally, link the new def_dec record onto the list of such records
1562 pertaining to this particular function name. */
1565 save_def_or_dec (l
, is_syscalls
)
1570 const char *semicolon_p
;
1571 def_dec_info
*def_dec_p
= (def_dec_info
*) xmalloc (sizeof (def_dec_info
));
1574 def_dec_p
->written
= 0;
1575 #endif /* !defined (UNPROTOIZE) */
1577 /* Start processing the line by picking off 5 pieces of information from
1578 the left hand end of the line. These are filename, line number,
1579 new/old/implicit flag (new = ANSI prototype format), definition or
1580 declaration flag, and extern/static flag). */
1582 check_aux_info (l
[0] == '/');
1583 check_aux_info (l
[1] == '*');
1584 check_aux_info (l
[2] == ' ');
1587 const char *filename_start
= p
= l
+ 3;
1592 filename
= (char *) alloca ((size_t) (p
- filename_start
) + 1);
1593 strncpy (filename
, filename_start
, (size_t) (p
- filename_start
));
1594 filename
[p
-filename_start
] = '\0';
1596 /* Call find_file to find the file_info record associated with the file
1597 which contained this particular def or dec item. Note that this call
1598 may cause a new file_info record to be created if this is the first time
1599 that we have ever known about this particular file.
1601 Note that we started out by forcing all of the base source file names
1602 (i.e. the names of the aux_info files with the .X stripped off) into the
1603 filenames hash table, and we simultaneously setup file_info records for
1604 all of these base file names (even if they may be useless later).
1605 The file_info records for all of these "base" file names (properly)
1606 act as file_info records for the "original" (i.e. un-included) files
1607 which were submitted to gcc for compilation (when the -aux-info
1608 option was used). */
1610 def_dec_p
->file
= find_file (abspath (invocation_filename
, filename
), is_syscalls
);
1614 const char *line_number_start
= ++p
;
1615 char line_number
[10];
1619 strncpy (line_number
, line_number_start
, (size_t) (p
- line_number_start
));
1620 line_number
[p
-line_number_start
] = '\0';
1621 def_dec_p
->line
= atoi (line_number
);
1624 /* Check that this record describes a new-style, old-style, or implicit
1625 definition or declaration. */
1627 p
++; /* Skip over the `:'. */
1628 check_aux_info ((*p
== 'N') || (*p
== 'O') || (*p
== 'I'));
1630 /* Is this a new style (ANSI prototyped) definition or declaration? */
1632 def_dec_p
->prototyped
= (*p
== 'N');
1636 /* Is this an implicit declaration? */
1638 def_dec_p
->is_implicit
= (*p
== 'I');
1640 #endif /* !defined (UNPROTOIZE) */
1644 check_aux_info ((*p
== 'C') || (*p
== 'F'));
1646 /* Is this item a function definition (F) or a declaration (C). Note that
1647 we treat item taken from the syscalls file as though they were function
1648 definitions regardless of what the stuff in the file says. */
1650 def_dec_p
->is_func_def
= ((*p
++ == 'F') || is_syscalls
);
1653 def_dec_p
->definition
= 0; /* Fill this in later if protoizing. */
1654 #endif /* !defined (UNPROTOIZE) */
1656 check_aux_info (*p
++ == ' ');
1657 check_aux_info (*p
++ == '*');
1658 check_aux_info (*p
++ == '/');
1659 check_aux_info (*p
++ == ' ');
1662 check_aux_info ((!strncmp (p
, "static", 6)) || (!strncmp (p
, "extern", 6)));
1663 #else /* !defined (UNPROTOIZE) */
1664 if (!strncmp (p
, "static", 6))
1665 def_dec_p
->is_static
= -1;
1666 else if (!strncmp (p
, "extern", 6))
1667 def_dec_p
->is_static
= 0;
1669 check_aux_info (0); /* Didn't find either `extern' or `static'. */
1670 #endif /* !defined (UNPROTOIZE) */
1673 const char *ansi_start
= p
;
1675 p
+= 6; /* Pass over the "static" or "extern". */
1677 /* We are now past the initial stuff. Search forward from here to find
1678 the terminating semicolon that should immediately follow the entire
1679 ANSI format function declaration. */
1686 /* Make a copy of the ansi declaration part of the line from the aux_info
1689 def_dec_p
->ansi_decl
1690 = dupnstr (ansi_start
, (size_t) ((semicolon_p
+1) - ansi_start
));
1692 /* Backup and point at the final right paren of the final argument list. */
1697 def_dec_p
->f_list_chain
= NULL
;
1698 #endif /* !defined (UNPROTOIZE) */
1700 while (p
!= ansi_start
&& (p
[-1] == ' ' || p
[-1] == '\t')) p
--;
1703 free_def_dec (def_dec_p
);
1708 /* Now isolate a whole set of formal argument lists, one-by-one. Normally,
1709 there will only be one list to isolate, but there could be more. */
1711 def_dec_p
->f_list_count
= 0;
1715 const char *left_paren_p
= find_corresponding_lparen (p
);
1718 f_list_chain_item
*cip
1719 = (f_list_chain_item
*) xmalloc (sizeof (f_list_chain_item
));
1722 = dupnstr (left_paren_p
+ 1, (size_t) (p
- (left_paren_p
+1)));
1724 /* Add the new chain item at the head of the current list. */
1726 cip
->chain_next
= def_dec_p
->f_list_chain
;
1727 def_dec_p
->f_list_chain
= cip
;
1729 #endif /* !defined (UNPROTOIZE) */
1730 def_dec_p
->f_list_count
++;
1732 p
= left_paren_p
- 2;
1734 /* p must now point either to another right paren, or to the last
1735 character of the name of the function that was declared/defined.
1736 If p points to another right paren, then this indicates that we
1737 are dealing with multiple formals lists. In that case, there
1738 really should be another right paren preceding this right paren. */
1743 check_aux_info (*--p
== ')');
1748 const char *past_fn
= p
+ 1;
1750 check_aux_info (*past_fn
== ' ');
1752 /* Scan leftwards over the identifier that names the function. */
1754 while (is_id_char (*p
))
1758 /* p now points to the leftmost character of the function name. */
1761 char *fn_string
= (char *) alloca (past_fn
- p
+ 1);
1763 strncpy (fn_string
, p
, (size_t) (past_fn
- p
));
1764 fn_string
[past_fn
-p
] = '\0';
1765 def_dec_p
->hash_entry
= lookup (function_name_primary
, fn_string
);
1769 /* Look at all of the defs and decs for this function name that we have
1770 collected so far. If there is already one which is at the same
1771 line number in the same file, then we can discard this new def_dec_info
1774 As an extra assurance that any such pair of (nominally) identical
1775 function declarations are in fact identical, we also compare the
1776 ansi_decl parts of the lines from the aux_info files just to be on
1779 This comparison will fail if (for instance) the user was playing
1780 messy games with the preprocessor which ultimately causes one
1781 function declaration in one header file to look differently when
1782 that file is included by two (or more) other files. */
1785 const def_dec_info
*other
;
1787 for (other
= def_dec_p
->hash_entry
->ddip
; other
; other
= other
->next_for_func
)
1789 if (def_dec_p
->line
== other
->line
&& def_dec_p
->file
== other
->file
)
1791 if (strcmp (def_dec_p
->ansi_decl
, other
->ansi_decl
))
1793 fprintf (stderr
, "%s:%d: declaration of function `%s' takes different forms\n",
1794 def_dec_p
->file
->hash_entry
->symbol
,
1796 def_dec_p
->hash_entry
->symbol
);
1797 exit (FATAL_EXIT_CODE
);
1799 free_def_dec (def_dec_p
);
1807 /* If we are doing unprotoizing, we must now setup the pointers that will
1808 point to the K&R name list and to the K&R argument declarations list.
1810 Note that if this is only a function declaration, then we should not
1811 expect to find any K&R style formals list following the ANSI-style
1812 formals list. This is because GCC knows that such information is
1813 useless in the case of function declarations (function definitions
1814 are a different story however).
1816 Since we are unprotoizing, we don't need any such lists anyway.
1817 All we plan to do is to delete all characters between ()'s in any
1820 def_dec_p
->formal_names
= NULL
;
1821 def_dec_p
->formal_decls
= NULL
;
1823 if (def_dec_p
->is_func_def
)
1826 check_aux_info (*++p
== ' ');
1827 check_aux_info (*++p
== '/');
1828 check_aux_info (*++p
== '*');
1829 check_aux_info (*++p
== ' ');
1830 check_aux_info (*++p
== '(');
1833 const char *kr_names_start
= ++p
; /* Point just inside '('. */
1837 p
--; /* point to closing right paren */
1839 /* Make a copy of the K&R parameter names list. */
1841 def_dec_p
->formal_names
1842 = dupnstr (kr_names_start
, (size_t) (p
- kr_names_start
));
1845 check_aux_info (*++p
== ' ');
1848 /* p now points to the first character of the K&R style declarations
1849 list (if there is one) or to the star-slash combination that ends
1850 the comment in which such lists get embedded. */
1852 /* Make a copy of the K&R formal decls list and set the def_dec record
1855 if (*p
== '*') /* Are there no K&R declarations? */
1857 check_aux_info (*++p
== '/');
1858 def_dec_p
->formal_decls
= "";
1862 const char *kr_decls_start
= p
;
1864 while (p
[0] != '*' || p
[1] != '/')
1868 check_aux_info (*p
== ' ');
1870 def_dec_p
->formal_decls
1871 = dupnstr (kr_decls_start
, (size_t) (p
- kr_decls_start
));
1874 /* Handle a special case. If we have a function definition marked as
1875 being in "old" style, and if its formal names list is empty, then
1876 it may actually have the string "void" in its real formals list
1877 in the original source code. Just to make sure, we will get setup
1878 to convert such things anyway.
1880 This kludge only needs to be here because of an insurmountable
1881 problem with generating .X files. */
1883 if (!def_dec_p
->prototyped
&& !*def_dec_p
->formal_names
)
1884 def_dec_p
->prototyped
= 1;
1887 /* Since we are unprotoizing, if this item is already in old (K&R) style,
1888 we can just ignore it. If that is true, throw away the itme now. */
1890 if (!def_dec_p
->prototyped
)
1892 free_def_dec (def_dec_p
);
1896 #endif /* defined (UNPROTOIZE) */
1898 /* Add this record to the head of the list of records pertaining to this
1899 particular function name. */
1901 def_dec_p
->next_for_func
= def_dec_p
->hash_entry
->ddip
;
1902 def_dec_p
->hash_entry
->ddip
= def_dec_p
;
1904 /* Add this new def_dec_info record to the sorted list of def_dec_info
1905 records for this file. Note that we don't have to worry about duplicates
1906 (caused by multiple inclusions of header files) here because we have
1907 already eliminated duplicates above. */
1909 if (!def_dec_p
->file
->defs_decs
)
1911 def_dec_p
->file
->defs_decs
= def_dec_p
;
1912 def_dec_p
->next_in_file
= NULL
;
1916 int line
= def_dec_p
->line
;
1917 const def_dec_info
*prev
= NULL
;
1918 const def_dec_info
*curr
= def_dec_p
->file
->defs_decs
;
1919 const def_dec_info
*next
= curr
->next_in_file
;
1921 while (next
&& (line
< curr
->line
))
1925 next
= next
->next_in_file
;
1927 if (line
>= curr
->line
)
1929 def_dec_p
->next_in_file
= curr
;
1931 ((NONCONST def_dec_info
*) prev
)->next_in_file
= def_dec_p
;
1933 def_dec_p
->file
->defs_decs
= def_dec_p
;
1935 else /* assert (next == NULL); */
1937 ((NONCONST def_dec_info
*) curr
)->next_in_file
= def_dec_p
;
1938 /* assert (next == NULL); */
1939 def_dec_p
->next_in_file
= next
;
1944 /* Set up the vector COMPILE_PARAMS which is the argument list for running GCC.
1945 Also set input_file_name_index and aux_info_file_name_index
1946 to the indices of the slots where the file names should go. */
1948 /* We initialize the vector by removing -g, -O, -S, -c, and -o options,
1949 and adding '-aux-info AUXFILE -S -o /dev/null INFILE' at the end. */
1952 munge_compile_params (params_list
)
1953 const char *params_list
;
1955 /* Build up the contents in a temporary vector
1956 that is so big that to has to be big enough. */
1957 const char **temp_params
1958 = (const char **) alloca ((strlen (params_list
) + 8) * sizeof (char *));
1959 int param_count
= 0;
1962 temp_params
[param_count
++] = compiler_file_name
;
1965 while (ISSPACE ((const unsigned char)*params_list
))
1969 param
= params_list
;
1970 while (*params_list
&& !ISSPACE ((const unsigned char)*params_list
))
1972 if (param
[0] != '-')
1973 temp_params
[param_count
++]
1974 = dupnstr (param
, (size_t) (params_list
- param
));
1983 break; /* Don't copy these. */
1985 while (ISSPACE ((const unsigned char)*params_list
))
1988 && !ISSPACE ((const unsigned char)*params_list
))
1992 temp_params
[param_count
++]
1993 = dupnstr (param
, (size_t) (params_list
- param
));
1999 temp_params
[param_count
++] = "-aux-info";
2001 /* Leave room for the aux-info file name argument. */
2002 aux_info_file_name_index
= param_count
;
2003 temp_params
[param_count
++] = NULL
;
2005 temp_params
[param_count
++] = "-S";
2006 temp_params
[param_count
++] = "-o";
2007 temp_params
[param_count
++] = "/dev/null";
2009 /* Leave room for the input file name argument. */
2010 input_file_name_index
= param_count
;
2011 temp_params
[param_count
++] = NULL
;
2012 /* Terminate the list. */
2013 temp_params
[param_count
++] = NULL
;
2015 /* Make a copy of the compile_params in heap space. */
2018 = (const char **) xmalloc (sizeof (char *) * (param_count
+1));
2019 memcpy (compile_params
, temp_params
, sizeof (char *) * param_count
);
2022 /* Do a recompilation for the express purpose of generating a new aux_info
2023 file to go with a specific base source file.
2025 The result is a boolean indicating success. */
2028 gen_aux_info_file (base_filename
)
2029 const char *base_filename
;
2031 if (!input_file_name_index
)
2032 munge_compile_params ("");
2034 /* Store the full source file name in the argument vector. */
2035 compile_params
[input_file_name_index
] = shortpath (NULL
, base_filename
);
2036 /* Add .X to source file name to get aux-info file name. */
2037 compile_params
[aux_info_file_name_index
]
2038 = savestring2 (compile_params
[input_file_name_index
],
2039 strlen (compile_params
[input_file_name_index
]),
2044 fprintf (stderr
, "%s: compiling `%s'\n",
2045 pname
, compile_params
[input_file_name_index
]);
2048 char *errmsg_fmt
, *errmsg_arg
;
2049 int wait_status
, pid
;
2050 char *temp_base
= choose_temp_base ();
2052 pid
= pexecute (compile_params
[0], (char * const *) compile_params
,
2053 pname
, temp_base
, &errmsg_fmt
, &errmsg_arg
,
2054 PEXECUTE_FIRST
| PEXECUTE_LAST
| PEXECUTE_SEARCH
);
2058 int errno_val
= errno
;
2059 fprintf (stderr
, "%s: ", pname
);
2060 fprintf (stderr
, errmsg_fmt
, errmsg_arg
);
2061 fprintf (stderr
, ": %s\n", xstrerror (errno_val
));
2065 pid
= pwait (pid
, &wait_status
, 0);
2068 fprintf (stderr
, "%s: wait: %s\n", pname
, xstrerror (errno
));
2071 if (WIFSIGNALED (wait_status
))
2073 fprintf (stderr
, "%s: subprocess got fatal signal %d\n",
2074 pname
, WTERMSIG (wait_status
));
2077 if (WIFEXITED (wait_status
))
2079 if (WEXITSTATUS (wait_status
) != 0)
2081 fprintf (stderr
, "%s: %s exited with status %d\n",
2082 pname
, compile_params
[0], WEXITSTATUS (wait_status
));
2091 /* Read in all of the information contained in a single aux_info file.
2092 Save all of the important stuff for later. */
2095 process_aux_info_file (base_source_filename
, keep_it
, is_syscalls
)
2096 const char *base_source_filename
;
2100 size_t base_len
= strlen (base_source_filename
);
2101 char * aux_info_filename
2102 = (char *) alloca (base_len
+ strlen (aux_info_suffix
) + 1);
2103 char *aux_info_base
;
2104 char *aux_info_limit
;
2105 char *aux_info_relocated_name
;
2106 const char *aux_info_second_line
;
2107 time_t aux_info_mtime
;
2108 size_t aux_info_size
;
2111 /* Construct the aux_info filename from the base source filename. */
2113 strcpy (aux_info_filename
, base_source_filename
);
2114 strcat (aux_info_filename
, aux_info_suffix
);
2116 /* Check that the aux_info file exists and is readable. If it does not
2117 exist, try to create it (once only). */
2119 /* If file doesn't exist, set must_create.
2120 Likewise if it exists and we can read it but it is obsolete.
2121 Otherwise, report an error. */
2124 /* Come here with must_create set to 1 if file is out of date. */
2127 if (my_access (aux_info_filename
, R_OK
) == -1)
2129 if (errno
== ENOENT
)
2133 fprintf (stderr
, "%s: warning: missing SYSCALLS file `%s'\n",
2134 pname
, aux_info_filename
);
2141 int errno_val
= errno
;
2142 fprintf (stderr
, "%s: can't read aux info file `%s': %s\n",
2143 pname
, shortpath (NULL
, aux_info_filename
),
2144 xstrerror (errno_val
));
2149 #if 0 /* There is code farther down to take care of this. */
2153 stat (aux_info_file_name
, &s1
);
2154 stat (base_source_file_name
, &s2
);
2155 if (s2
.st_mtime
> s1
.st_mtime
)
2160 /* If we need a .X file, create it, and verify we can read it. */
2163 if (!gen_aux_info_file (base_source_filename
))
2168 if (my_access (aux_info_filename
, R_OK
) == -1)
2170 int errno_val
= errno
;
2171 fprintf (stderr
, "%s: can't read aux info file `%s': %s\n",
2172 pname
, shortpath (NULL
, aux_info_filename
),
2173 xstrerror (errno_val
));
2180 struct stat stat_buf
;
2182 /* Get some status information about this aux_info file. */
2184 if (my_stat (aux_info_filename
, &stat_buf
) == -1)
2186 int errno_val
= errno
;
2187 fprintf (stderr
, "%s: can't get status of aux info file `%s': %s\n",
2188 pname
, shortpath (NULL
, aux_info_filename
),
2189 xstrerror (errno_val
));
2194 /* Check on whether or not this aux_info file is zero length. If it is,
2195 then just ignore it and return. */
2197 if ((aux_info_size
= stat_buf
.st_size
) == 0)
2200 /* Get the date/time of last modification for this aux_info file and
2201 remember it. We will have to check that any source files that it
2202 contains information about are at least this old or older. */
2204 aux_info_mtime
= stat_buf
.st_mtime
;
2208 /* Compare mod time with the .c file; update .X file if obsolete.
2209 The code later on can fail to check the .c file
2210 if it did not directly define any functions. */
2212 if (my_stat (base_source_filename
, &stat_buf
) == -1)
2214 int errno_val
= errno
;
2215 fprintf (stderr
, "%s: can't get status of aux info file `%s': %s\n",
2216 pname
, shortpath (NULL
, base_source_filename
),
2217 xstrerror (errno_val
));
2221 if (stat_buf
.st_mtime
> aux_info_mtime
)
2232 /* Open the aux_info file. */
2234 if ((aux_info_file
= my_open (aux_info_filename
, O_RDONLY
, 0444 )) == -1)
2236 int errno_val
= errno
;
2237 fprintf (stderr
, "%s: can't open aux info file `%s' for reading: %s\n",
2238 pname
, shortpath (NULL
, aux_info_filename
),
2239 xstrerror (errno_val
));
2243 /* Allocate space to hold the aux_info file in memory. */
2245 aux_info_base
= xmalloc (aux_info_size
+ 1);
2246 aux_info_limit
= aux_info_base
+ aux_info_size
;
2247 *aux_info_limit
= '\0';
2249 /* Read the aux_info file into memory. */
2251 if (safe_read (aux_info_file
, aux_info_base
, aux_info_size
) !=
2252 (int) aux_info_size
)
2254 int errno_val
= errno
;
2255 fprintf (stderr
, "%s: error reading aux info file `%s': %s\n",
2256 pname
, shortpath (NULL
, aux_info_filename
),
2257 xstrerror (errno_val
));
2258 free (aux_info_base
);
2259 close (aux_info_file
);
2263 /* Close the aux info file. */
2265 if (close (aux_info_file
))
2267 int errno_val
= errno
;
2268 fprintf (stderr
, "%s: error closing aux info file `%s': %s\n",
2269 pname
, shortpath (NULL
, aux_info_filename
),
2270 xstrerror (errno_val
));
2271 free (aux_info_base
);
2272 close (aux_info_file
);
2277 /* Delete the aux_info file (unless requested not to). If the deletion
2278 fails for some reason, don't even worry about it. */
2280 if (must_create
&& !keep_it
)
2281 if (my_unlink (aux_info_filename
) == -1)
2283 int errno_val
= errno
;
2284 fprintf (stderr
, "%s: can't delete aux info file `%s': %s\n",
2285 pname
, shortpath (NULL
, aux_info_filename
),
2286 xstrerror (errno_val
));
2289 /* Save a pointer into the first line of the aux_info file which
2290 contains the filename of the directory from which the compiler
2291 was invoked when the associated source file was compiled.
2292 This information is used later to help create complete
2293 filenames out of the (potentially) relative filenames in
2294 the aux_info file. */
2297 char *p
= aux_info_base
;
2304 invocation_filename
= p
; /* Save a pointer to first byte of path. */
2309 while (*p
++ != '\n')
2311 aux_info_second_line
= p
;
2312 aux_info_relocated_name
= 0;
2313 if (invocation_filename
[0] != '/')
2315 /* INVOCATION_FILENAME is relative;
2316 append it to BASE_SOURCE_FILENAME's dir. */
2318 aux_info_relocated_name
= xmalloc (base_len
+ (p
-invocation_filename
));
2319 strcpy (aux_info_relocated_name
, base_source_filename
);
2320 dir_end
= strrchr (aux_info_relocated_name
, '/');
2324 dir_end
= aux_info_relocated_name
;
2325 strcpy (dir_end
, invocation_filename
);
2326 invocation_filename
= aux_info_relocated_name
;
2332 const char *aux_info_p
;
2334 /* Do a pre-pass on the lines in the aux_info file, making sure that all
2335 of the source files referenced in there are at least as old as this
2336 aux_info file itself. If not, go back and regenerate the aux_info
2337 file anew. Don't do any of this for the syscalls file. */
2341 current_aux_info_lineno
= 2;
2343 for (aux_info_p
= aux_info_second_line
; *aux_info_p
; )
2345 if (referenced_file_is_newer (aux_info_p
, aux_info_mtime
))
2347 free (aux_info_base
);
2348 xfree (aux_info_relocated_name
);
2349 if (keep_it
&& my_unlink (aux_info_filename
) == -1)
2351 int errno_val
= errno
;
2352 fprintf (stderr
, "%s: can't delete file `%s': %s\n",
2353 pname
, shortpath (NULL
, aux_info_filename
),
2354 xstrerror (errno_val
));
2361 /* Skip over the rest of this line to start of next line. */
2363 while (*aux_info_p
!= '\n')
2366 current_aux_info_lineno
++;
2370 /* Now do the real pass on the aux_info lines. Save their information in
2371 the in-core data base. */
2373 current_aux_info_lineno
= 2;
2375 for (aux_info_p
= aux_info_second_line
; *aux_info_p
;)
2377 char *unexpanded_line
= unexpand_if_needed (aux_info_p
);
2379 if (unexpanded_line
)
2381 save_def_or_dec (unexpanded_line
, is_syscalls
);
2382 free (unexpanded_line
);
2385 save_def_or_dec (aux_info_p
, is_syscalls
);
2387 /* Skip over the rest of this line and get to start of next line. */
2389 while (*aux_info_p
!= '\n')
2392 current_aux_info_lineno
++;
2396 free (aux_info_base
);
2397 xfree (aux_info_relocated_name
);
2402 /* Check an individual filename for a .c suffix. If the filename has this
2403 suffix, rename the file such that its suffix is changed to .C. This
2404 function implements the -C option. */
2408 const hash_table_entry
*hp
;
2410 const char *filename
= hp
->symbol
;
2411 int last_char_index
= strlen (filename
) - 1;
2412 char *const new_filename
= (char *) alloca (strlen (filename
) + 1);
2414 /* Note that we don't care here if the given file was converted or not. It
2415 is possible that the given file was *not* converted, simply because there
2416 was nothing in it which actually required conversion. Even in this case,
2417 we want to do the renaming. Note that we only rename files with the .c
2420 if (filename
[last_char_index
] != 'c' || filename
[last_char_index
-1] != '.')
2423 strcpy (new_filename
, filename
);
2424 new_filename
[last_char_index
] = 'C';
2426 if (my_link (filename
, new_filename
) == -1)
2428 int errno_val
= errno
;
2429 fprintf (stderr
, "%s: warning: can't link file `%s' to `%s': %s\n",
2430 pname
, shortpath (NULL
, filename
),
2431 shortpath (NULL
, new_filename
), xstrerror (errno_val
));
2436 if (my_unlink (filename
) == -1)
2438 int errno_val
= errno
;
2439 fprintf (stderr
, "%s: warning: can't delete file `%s': %s\n",
2440 pname
, shortpath (NULL
, filename
), xstrerror (errno_val
));
2446 #endif /* !defined (UNPROTOIZE) */
2448 /* Take the list of definitions and declarations attached to a particular
2449 file_info node and reverse the order of the list. This should get the
2450 list into an order such that the item with the lowest associated line
2451 number is nearest the head of the list. When these lists are originally
2452 built, they are in the opposite order. We want to traverse them in
2453 normal line number order later (i.e. lowest to highest) so reverse the
2457 reverse_def_dec_list (hp
)
2458 const hash_table_entry
*hp
;
2460 file_info
*file_p
= hp
->fip
;
2461 def_dec_info
*prev
= NULL
;
2462 def_dec_info
*current
= (def_dec_info
*)file_p
->defs_decs
;
2465 return; /* no list to reverse */
2468 if (! (current
= (def_dec_info
*)current
->next_in_file
))
2469 return; /* can't reverse a single list element */
2471 prev
->next_in_file
= NULL
;
2475 def_dec_info
*next
= (def_dec_info
*)current
->next_in_file
;
2477 current
->next_in_file
= prev
;
2482 file_p
->defs_decs
= prev
;
2487 /* Find the (only?) extern definition for a particular function name, starting
2488 from the head of the linked list of entries for the given name. If we
2489 cannot find an extern definition for the given function name, issue a
2490 warning and scrounge around for the next best thing, i.e. an extern
2491 function declaration with a prototype attached to it. Note that we only
2492 allow such substitutions for extern declarations and never for static
2493 declarations. That's because the only reason we allow them at all is
2494 to let un-prototyped function declarations for system-supplied library
2495 functions get their prototypes from our own extra SYSCALLS.c.X file which
2496 contains all of the correct prototypes for system functions. */
2498 static const def_dec_info
*
2499 find_extern_def (head
, user
)
2500 const def_dec_info
*head
;
2501 const def_dec_info
*user
;
2503 const def_dec_info
*dd_p
;
2504 const def_dec_info
*extern_def_p
= NULL
;
2505 int conflict_noted
= 0;
2507 /* Don't act too stupid here. Somebody may try to convert an entire system
2508 in one swell fwoop (rather than one program at a time, as should be done)
2509 and in that case, we may find that there are multiple extern definitions
2510 of a given function name in the entire set of source files that we are
2511 converting. If however one of these definitions resides in exactly the
2512 same source file as the reference we are trying to satisfy then in that
2513 case it would be stupid for us to fail to realize that this one definition
2514 *must* be the precise one we are looking for.
2516 To make sure that we don't miss an opportunity to make this "same file"
2517 leap of faith, we do a prescan of the list of records relating to the
2518 given function name, and we look (on this first scan) *only* for a
2519 definition of the function which is in the same file as the reference
2520 we are currently trying to satisfy. */
2522 for (dd_p
= head
; dd_p
; dd_p
= dd_p
->next_for_func
)
2523 if (dd_p
->is_func_def
&& !dd_p
->is_static
&& dd_p
->file
== user
->file
)
2526 /* Now, since we have not found a definition in the same file as the
2527 reference, we scan the list again and consider all possibilities from
2528 all files. Here we may get conflicts with the things listed in the
2529 SYSCALLS.c.X file, but if that happens it only means that the source
2530 code being converted contains its own definition of a function which
2531 could have been supplied by libc.a. In such cases, we should avoid
2532 issuing the normal warning, and defer to the definition given in the
2535 for (dd_p
= head
; dd_p
; dd_p
= dd_p
->next_for_func
)
2536 if (dd_p
->is_func_def
&& !dd_p
->is_static
)
2538 if (!extern_def_p
) /* Previous definition? */
2539 extern_def_p
= dd_p
; /* Remember the first definition found. */
2542 /* Ignore definition just found if it came from SYSCALLS.c.X. */
2544 if (is_syscalls_file (dd_p
->file
))
2547 /* Quietly replace the definition previously found with the one
2548 just found if the previous one was from SYSCALLS.c.X. */
2550 if (is_syscalls_file (extern_def_p
->file
))
2552 extern_def_p
= dd_p
;
2556 /* If we get here, then there is a conflict between two function
2557 declarations for the same function, both of which came from the
2560 if (!conflict_noted
) /* first time we noticed? */
2563 fprintf (stderr
, "%s: conflicting extern definitions of '%s'\n",
2564 pname
, head
->hash_entry
->symbol
);
2567 fprintf (stderr
, "%s: declarations of '%s' will not be converted\n",
2568 pname
, head
->hash_entry
->symbol
);
2569 fprintf (stderr
, "%s: conflict list for '%s' follows:\n",
2570 pname
, head
->hash_entry
->symbol
);
2571 fprintf (stderr
, "%s: %s(%d): %s\n",
2573 shortpath (NULL
, extern_def_p
->file
->hash_entry
->symbol
),
2574 extern_def_p
->line
, extern_def_p
->ansi_decl
);
2578 fprintf (stderr
, "%s: %s(%d): %s\n",
2580 shortpath (NULL
, dd_p
->file
->hash_entry
->symbol
),
2581 dd_p
->line
, dd_p
->ansi_decl
);
2585 /* We want to err on the side of caution, so if we found multiple conflicting
2586 definitions for the same function, treat this as being that same as if we
2587 had found no definitions (i.e. return NULL). */
2594 /* We have no definitions for this function so do the next best thing.
2595 Search for an extern declaration already in prototype form. */
2597 for (dd_p
= head
; dd_p
; dd_p
= dd_p
->next_for_func
)
2598 if (!dd_p
->is_func_def
&& !dd_p
->is_static
&& dd_p
->prototyped
)
2600 extern_def_p
= dd_p
; /* save a pointer to the definition */
2602 fprintf (stderr
, "%s: warning: using formals list from %s(%d) for function `%s'\n",
2604 shortpath (NULL
, dd_p
->file
->hash_entry
->symbol
),
2605 dd_p
->line
, dd_p
->hash_entry
->symbol
);
2609 /* Gripe about unprototyped function declarations that we found no
2610 corresponding definition (or other source of prototype information)
2613 Gripe even if the unprototyped declaration we are worried about
2614 exists in a file in one of the "system" include directories. We
2615 can gripe about these because we should have at least found a
2616 corresponding (pseudo) definition in the SYSCALLS.c.X file. If we
2617 didn't, then that means that the SYSCALLS.c.X file is missing some
2618 needed prototypes for this particular system. That is worth telling
2623 const char *file
= user
->file
->hash_entry
->symbol
;
2626 if (in_system_include_dir (file
))
2628 /* Why copy this string into `needed' at all?
2629 Why not just use user->ansi_decl without copying? */
2630 char *needed
= (char *) alloca (strlen (user
->ansi_decl
) + 1);
2633 strcpy (needed
, user
->ansi_decl
);
2634 p
= (NONCONST
char *) substr (needed
, user
->hash_entry
->symbol
)
2635 + strlen (user
->hash_entry
->symbol
) + 2;
2636 /* Avoid having ??? in the string. */
2642 fprintf (stderr
, "%s: %d: `%s' used but missing from SYSCALLS\n",
2643 shortpath (NULL
, file
), user
->line
,
2644 needed
+7); /* Don't print "extern " */
2648 fprintf (stderr
, "%s: %d: warning: no extern definition for `%s'\n",
2649 shortpath (NULL
, file
), user
->line
,
2650 user
->hash_entry
->symbol
);
2654 return extern_def_p
;
2657 /* Find the (only?) static definition for a particular function name in a
2658 given file. Here we get the function-name and the file info indirectly
2659 from the def_dec_info record pointer which is passed in. */
2661 static const def_dec_info
*
2662 find_static_definition (user
)
2663 const def_dec_info
*user
;
2665 const def_dec_info
*head
= user
->hash_entry
->ddip
;
2666 const def_dec_info
*dd_p
;
2667 int num_static_defs
= 0;
2668 const def_dec_info
*static_def_p
= NULL
;
2670 for (dd_p
= head
; dd_p
; dd_p
= dd_p
->next_for_func
)
2671 if (dd_p
->is_func_def
&& dd_p
->is_static
&& (dd_p
->file
== user
->file
))
2673 static_def_p
= dd_p
; /* save a pointer to the definition */
2676 if (num_static_defs
== 0)
2679 fprintf (stderr
, "%s: warning: no static definition for `%s' in file `%s'\n",
2680 pname
, head
->hash_entry
->symbol
,
2681 shortpath (NULL
, user
->file
->hash_entry
->symbol
));
2683 else if (num_static_defs
> 1)
2685 fprintf (stderr
, "%s: multiple static defs of `%s' in file `%s'\n",
2686 pname
, head
->hash_entry
->symbol
,
2687 shortpath (NULL
, user
->file
->hash_entry
->symbol
));
2690 return static_def_p
;
2693 /* Find good prototype style formal argument lists for all of the function
2694 declarations which didn't have them before now.
2696 To do this we consider each function name one at a time. For each function
2697 name, we look at the items on the linked list of def_dec_info records for
2698 that particular name.
2700 Somewhere on this list we should find one (and only one) def_dec_info
2701 record which represents the actual function definition, and this record
2702 should have a nice formal argument list already associated with it.
2704 Thus, all we have to do is to connect up all of the other def_dec_info
2705 records for this particular function name to the special one which has
2706 the full-blown formals list.
2708 Of course it is a little more complicated than just that. See below for
2712 connect_defs_and_decs (hp
)
2713 const hash_table_entry
*hp
;
2715 const def_dec_info
*dd_p
;
2716 const def_dec_info
*extern_def_p
= NULL
;
2717 int first_extern_reference
= 1;
2719 /* Traverse the list of definitions and declarations for this particular
2720 function name. For each item on the list, if it is a function
2721 definition (either old style or new style) then GCC has already been
2722 kind enough to produce a prototype for us, and it is associated with
2723 the item already, so declare the item as its own associated "definition".
2725 Also, for each item which is only a function declaration, but which
2726 nonetheless has its own prototype already (obviously supplied by the user)
2727 declare the item as its own definition.
2729 Note that when/if there are multiple user-supplied prototypes already
2730 present for multiple declarations of any given function, these multiple
2731 prototypes *should* all match exactly with one another and with the
2732 prototype for the actual function definition. We don't check for this
2733 here however, since we assume that the compiler must have already done
2734 this consistency checking when it was creating the .X files. */
2736 for (dd_p
= hp
->ddip
; dd_p
; dd_p
= dd_p
->next_for_func
)
2737 if (dd_p
->prototyped
)
2738 ((NONCONST def_dec_info
*) dd_p
)->definition
= dd_p
;
2740 /* Traverse the list of definitions and declarations for this particular
2741 function name. For each item on the list, if it is an extern function
2742 declaration and if it has no associated definition yet, go try to find
2743 the matching extern definition for the declaration.
2745 When looking for the matching function definition, warn the user if we
2748 If we find more that one function definition also issue a warning.
2750 Do the search for the matching definition only once per unique function
2751 name (and only when absolutely needed) so that we can avoid putting out
2752 redundant warning messages, and so that we will only put out warning
2753 messages when there is actually a reference (i.e. a declaration) for
2754 which we need to find a matching definition. */
2756 for (dd_p
= hp
->ddip
; dd_p
; dd_p
= dd_p
->next_for_func
)
2757 if (!dd_p
->is_func_def
&& !dd_p
->is_static
&& !dd_p
->definition
)
2759 if (first_extern_reference
)
2761 extern_def_p
= find_extern_def (hp
->ddip
, dd_p
);
2762 first_extern_reference
= 0;
2764 ((NONCONST def_dec_info
*) dd_p
)->definition
= extern_def_p
;
2767 /* Traverse the list of definitions and declarations for this particular
2768 function name. For each item on the list, if it is a static function
2769 declaration and if it has no associated definition yet, go try to find
2770 the matching static definition for the declaration within the same file.
2772 When looking for the matching function definition, warn the user if we
2773 fail to find one in the same file with the declaration, and refuse to
2774 convert this kind of cross-file static function declaration. After all,
2775 this is stupid practice and should be discouraged.
2777 We don't have to worry about the possibility that there is more than one
2778 matching function definition in the given file because that would have
2779 been flagged as an error by the compiler.
2781 Do the search for the matching definition only once per unique
2782 function-name/source-file pair (and only when absolutely needed) so that
2783 we can avoid putting out redundant warning messages, and so that we will
2784 only put out warning messages when there is actually a reference (i.e. a
2785 declaration) for which we actually need to find a matching definition. */
2787 for (dd_p
= hp
->ddip
; dd_p
; dd_p
= dd_p
->next_for_func
)
2788 if (!dd_p
->is_func_def
&& dd_p
->is_static
&& !dd_p
->definition
)
2790 const def_dec_info
*dd_p2
;
2791 const def_dec_info
*static_def
;
2793 /* We have now found a single static declaration for which we need to
2794 find a matching definition. We want to minimize the work (and the
2795 number of warnings), so we will find an appropriate (matching)
2796 static definition for this declaration, and then distribute it
2797 (as the definition for) any and all other static declarations
2798 for this function name which occur within the same file, and which
2799 do not already have definitions.
2801 Note that a trick is used here to prevent subsequent attempts to
2802 call find_static_definition for a given function-name & file
2803 if the first such call returns NULL. Essentially, we convert
2804 these NULL return values to -1, and put the -1 into the definition
2805 field for each other static declaration from the same file which
2806 does not already have an associated definition.
2807 This makes these other static declarations look like they are
2808 actually defined already when the outer loop here revisits them
2809 later on. Thus, the outer loop will skip over them. Later, we
2810 turn the -1's back to NULL's. */
2812 ((NONCONST def_dec_info
*) dd_p
)->definition
=
2813 (static_def
= find_static_definition (dd_p
))
2815 : (const def_dec_info
*) -1;
2817 for (dd_p2
= dd_p
->next_for_func
; dd_p2
; dd_p2
= dd_p2
->next_for_func
)
2818 if (!dd_p2
->is_func_def
&& dd_p2
->is_static
2819 && !dd_p2
->definition
&& (dd_p2
->file
== dd_p
->file
))
2820 ((NONCONST def_dec_info
*)dd_p2
)->definition
= dd_p
->definition
;
2823 /* Convert any dummy (-1) definitions we created in the step above back to
2824 NULL's (as they should be). */
2826 for (dd_p
= hp
->ddip
; dd_p
; dd_p
= dd_p
->next_for_func
)
2827 if (dd_p
->definition
== (def_dec_info
*) -1)
2828 ((NONCONST def_dec_info
*) dd_p
)->definition
= NULL
;
2831 #endif /* !defined (UNPROTOIZE) */
2833 /* Give a pointer into the clean text buffer, return a number which is the
2834 original source line number that the given pointer points into. */
2837 identify_lineno (clean_p
)
2838 const char *clean_p
;
2843 for (scan_p
= clean_text_base
; scan_p
<= clean_p
; scan_p
++)
2844 if (*scan_p
== '\n')
2849 /* Issue an error message and give up on doing this particular edit. */
2852 declare_source_confusing (clean_p
)
2853 const char *clean_p
;
2858 fprintf (stderr
, "%s: %d: warning: source too confusing\n",
2859 shortpath (NULL
, convert_filename
), last_known_line_number
);
2861 fprintf (stderr
, "%s: %d: warning: source too confusing\n",
2862 shortpath (NULL
, convert_filename
),
2863 identify_lineno (clean_p
));
2865 longjmp (source_confusion_recovery
, 1);
2868 /* Check that a condition which is expected to be true in the original source
2869 code is in fact true. If not, issue an error message and give up on
2870 converting this particular source file. */
2873 check_source (cond
, clean_p
)
2875 const char *clean_p
;
2878 declare_source_confusing (clean_p
);
2881 /* If we think of the in-core cleaned text buffer as a memory mapped
2882 file (with the variable last_known_line_start acting as sort of a
2883 file pointer) then we can imagine doing "seeks" on the buffer. The
2884 following routine implements a kind of "seek" operation for the in-core
2885 (cleaned) copy of the source file. When finished, it returns a pointer to
2886 the start of a given (numbered) line in the cleaned text buffer.
2888 Note that protoize only has to "seek" in the forward direction on the
2889 in-core cleaned text file buffers, and it never needs to back up.
2891 This routine is made a little bit faster by remembering the line number
2892 (and pointer value) supplied (and returned) from the previous "seek".
2893 This prevents us from always having to start all over back at the top
2894 of the in-core cleaned buffer again. */
2900 if (n
< last_known_line_number
)
2903 while (n
> last_known_line_number
)
2905 while (*last_known_line_start
!= '\n')
2906 check_source (++last_known_line_start
< clean_text_limit
, 0);
2907 last_known_line_start
++;
2908 last_known_line_number
++;
2910 return last_known_line_start
;
2913 /* Given a pointer to a character in the cleaned text buffer, return a pointer
2914 to the next non-whitespace character which follows it. */
2917 forward_to_next_token_char (ptr
)
2920 for (++ptr
; ISSPACE ((const unsigned char)*ptr
);
2921 check_source (++ptr
< clean_text_limit
, 0))
2926 /* Copy a chunk of text of length `len' and starting at `str' to the current
2927 output buffer. Note that all attempts to add stuff to the current output
2928 buffer ultimately go through here. */
2931 output_bytes (str
, len
)
2935 if ((repl_write_ptr
+ 1) + len
>= repl_text_limit
)
2937 size_t new_size
= (repl_text_limit
- repl_text_base
) << 1;
2938 char *new_buf
= (char *) xrealloc (repl_text_base
, new_size
);
2940 repl_write_ptr
= new_buf
+ (repl_write_ptr
- repl_text_base
);
2941 repl_text_base
= new_buf
;
2942 repl_text_limit
= new_buf
+ new_size
;
2944 memcpy (repl_write_ptr
+ 1, str
, len
);
2945 repl_write_ptr
+= len
;
2948 /* Copy all bytes (except the trailing null) of a null terminated string to
2949 the current output buffer. */
2955 output_bytes (str
, strlen (str
));
2958 /* Copy some characters from the original text buffer to the current output
2961 This routine takes a pointer argument `p' which is assumed to be a pointer
2962 into the cleaned text buffer. The bytes which are copied are the `original'
2963 equivalents for the set of bytes between the last value of `clean_read_ptr'
2964 and the argument value `p'.
2966 The set of bytes copied however, comes *not* from the cleaned text buffer,
2967 but rather from the direct counterparts of these bytes within the original
2970 Thus, when this function is called, some bytes from the original text
2971 buffer (which may include original comments and preprocessing directives)
2972 will be copied into the output buffer.
2974 Note that the request implied when this routine is called includes the
2975 byte pointed to by the argument pointer `p'. */
2981 size_t copy_length
= (size_t) (p
- clean_read_ptr
);
2982 const char *copy_start
= orig_text_base
+(clean_read_ptr
-clean_text_base
)+1;
2984 if (copy_length
== 0)
2987 output_bytes (copy_start
, copy_length
);
2991 /* Given a pointer to a def_dec_info record which represents some form of
2992 definition of a function (perhaps a real definition, or in lieu of that
2993 perhaps just a declaration with a full prototype) return true if this
2994 function is one which we should avoid converting. Return false
2998 other_variable_style_function (ansi_header
)
2999 const char *ansi_header
;
3003 /* See if we have a stdarg function, or a function which has stdarg style
3004 parameters or a stdarg style return type. */
3006 return substr (ansi_header
, "...") != 0;
3008 #else /* !defined (UNPROTOIZE) */
3010 /* See if we have a varargs function, or a function which has varargs style
3011 parameters or a varargs style return type. */
3014 int len
= strlen (varargs_style_indicator
);
3016 for (p
= ansi_header
; p
; )
3018 const char *candidate
;
3020 if ((candidate
= substr (p
, varargs_style_indicator
)) == 0)
3023 if (!is_id_char (candidate
[-1]) && !is_id_char (candidate
[len
]))
3029 #endif /* !defined (UNPROTOIZE) */
3032 /* Do the editing operation specifically for a function "declaration". Note
3033 that editing for function "definitions" are handled in a separate routine
3037 edit_fn_declaration (def_dec_p
, clean_text_p
)
3038 const def_dec_info
*def_dec_p
;
3039 const char *volatile clean_text_p
;
3041 const char *start_formals
;
3042 const char *end_formals
;
3043 const char *function_to_edit
= def_dec_p
->hash_entry
->symbol
;
3044 size_t func_name_len
= strlen (function_to_edit
);
3045 const char *end_of_fn_name
;
3049 const f_list_chain_item
*this_f_list_chain_item
;
3050 const def_dec_info
*definition
= def_dec_p
->definition
;
3052 /* If we are protoizing, and if we found no corresponding definition for
3053 this particular function declaration, then just leave this declaration
3054 exactly as it is. */
3059 /* If we are protoizing, and if the corresponding definition that we found
3060 for this particular function declaration defined an old style varargs
3061 function, then we want to issue a warning and just leave this function
3062 declaration unconverted. */
3064 if (other_variable_style_function (definition
->ansi_decl
))
3067 fprintf (stderr
, "%s: %d: warning: varargs function declaration not converted\n",
3068 shortpath (NULL
, def_dec_p
->file
->hash_entry
->symbol
),
3073 #endif /* !defined (UNPROTOIZE) */
3075 /* Setup here to recover from confusing source code detected during this
3076 particular "edit". */
3079 if (setjmp (source_confusion_recovery
))
3081 restore_pointers ();
3082 fprintf (stderr
, "%s: declaration of function `%s' not converted\n",
3083 pname
, function_to_edit
);
3087 /* We are editing a function declaration. The line number we did a seek to
3088 contains the comma or semicolon which follows the declaration. Our job
3089 now is to scan backwards looking for the function name. This name *must*
3090 be followed by open paren (ignoring whitespace, of course). We need to
3091 replace everything between that open paren and the corresponding closing
3092 paren. If we are protoizing, we need to insert the prototype-style
3093 formals lists. If we are unprotoizing, we need to just delete everything
3094 between the pairs of opening and closing parens. */
3096 /* First move up to the end of the line. */
3098 while (*clean_text_p
!= '\n')
3099 check_source (++clean_text_p
< clean_text_limit
, 0);
3100 clean_text_p
--; /* Point to just before the newline character. */
3102 /* Now we can scan backwards for the function name. */
3108 /* Scan leftwards until we find some character which can be
3109 part of an identifier. */
3111 while (!is_id_char (*clean_text_p
))
3112 check_source (--clean_text_p
> clean_read_ptr
, 0);
3114 /* Scan backwards until we find a char that cannot be part of an
3117 while (is_id_char (*clean_text_p
))
3118 check_source (--clean_text_p
> clean_read_ptr
, 0);
3120 /* Having found an "id break", see if the following id is the one
3121 that we are looking for. If so, then exit from this loop. */
3123 if (!strncmp (clean_text_p
+1, function_to_edit
, func_name_len
))
3125 char ch
= *(clean_text_p
+ 1 + func_name_len
);
3127 /* Must also check to see that the name in the source text
3128 ends where it should (in order to prevent bogus matches
3129 on similar but longer identifiers. */
3131 if (! is_id_char (ch
))
3132 break; /* exit from loop */
3136 /* We have now found the first perfect match for the function name in
3137 our backward search. This may or may not be the actual function
3138 name at the start of the actual function declaration (i.e. we could
3139 have easily been mislead). We will try to avoid getting fooled too
3140 often by looking forward for the open paren which should follow the
3141 identifier we just found. We ignore whitespace while hunting. If
3142 the next non-whitespace byte we see is *not* an open left paren,
3143 then we must assume that we have been fooled and we start over
3144 again accordingly. Note that there is no guarantee, that even if
3145 we do see the open paren, that we are in the right place.
3146 Programmers do the strangest things sometimes! */
3148 end_of_fn_name
= clean_text_p
+ strlen (def_dec_p
->hash_entry
->symbol
);
3149 start_formals
= forward_to_next_token_char (end_of_fn_name
);
3151 while (*start_formals
!= '(');
3153 /* start_of_formals now points to the opening left paren which immediately
3154 follows the name of the function. */
3156 /* Note that there may be several formals lists which need to be modified
3157 due to the possibility that the return type of this function is a
3158 pointer-to-function type. If there are several formals lists, we
3159 convert them in left-to-right order here. */
3162 this_f_list_chain_item
= definition
->f_list_chain
;
3163 #endif /* !defined (UNPROTOIZE) */
3170 end_formals
= start_formals
+ 1;
3172 for (; depth
; check_source (++end_formals
< clean_text_limit
, 0))
3174 switch (*end_formals
)
3187 /* end_formals now points to the closing right paren of the formals
3188 list whose left paren is pointed to by start_formals. */
3190 /* Now, if we are protoizing, we insert the new ANSI-style formals list
3191 attached to the associated definition of this function. If however
3192 we are unprotoizing, then we simply delete any formals list which
3195 output_up_to (start_formals
);
3197 if (this_f_list_chain_item
)
3199 output_string (this_f_list_chain_item
->formals_list
);
3200 this_f_list_chain_item
= this_f_list_chain_item
->chain_next
;
3205 fprintf (stderr
, "%s: warning: too many parameter lists in declaration of `%s'\n",
3206 pname
, def_dec_p
->hash_entry
->symbol
);
3207 check_source (0, end_formals
); /* leave the declaration intact */
3209 #endif /* !defined (UNPROTOIZE) */
3210 clean_read_ptr
= end_formals
- 1;
3212 /* Now see if it looks like there may be another formals list associated
3213 with the function declaration that we are converting (following the
3214 formals list that we just converted. */
3217 const char *another_r_paren
= forward_to_next_token_char (end_formals
);
3219 if ((*another_r_paren
!= ')')
3220 || (*(start_formals
= forward_to_next_token_char (another_r_paren
)) != '('))
3223 if (this_f_list_chain_item
)
3226 fprintf (stderr
, "\n%s: warning: too few parameter lists in declaration of `%s'\n",
3227 pname
, def_dec_p
->hash_entry
->symbol
);
3228 check_source (0, start_formals
); /* leave the decl intact */
3230 #endif /* !defined (UNPROTOIZE) */
3236 /* There does appear to be yet another formals list, so loop around
3237 again, and convert it also. */
3241 /* Edit a whole group of formals lists, starting with the rightmost one
3242 from some set of formals lists. This routine is called once (from the
3243 outside) for each function declaration which is converted. It is
3244 recursive however, and it calls itself once for each remaining formal
3245 list that lies to the left of the one it was originally called to work
3246 on. Thus, a whole set gets done in right-to-left order.
3248 This routine returns non-zero if it thinks that it should not be trying
3249 to convert this particular function definition (because the name of the
3250 function doesn't match the one expected). */
3253 edit_formals_lists (end_formals
, f_list_count
, def_dec_p
)
3254 const char *end_formals
;
3255 unsigned int f_list_count
;
3256 const def_dec_info
*def_dec_p
;
3258 const char *start_formals
;
3261 start_formals
= end_formals
- 1;
3263 for (; depth
; check_source (--start_formals
> clean_read_ptr
, 0))
3265 switch (*start_formals
)
3277 /* start_formals now points to the opening left paren of the formals list. */
3283 const char *next_end
;
3285 /* There should be more formal lists to the left of here. */
3287 next_end
= start_formals
- 1;
3288 check_source (next_end
> clean_read_ptr
, 0);
3289 while (ISSPACE ((const unsigned char)*next_end
))
3290 check_source (--next_end
> clean_read_ptr
, 0);
3291 check_source (*next_end
== ')', next_end
);
3292 check_source (--next_end
> clean_read_ptr
, 0);
3293 check_source (*next_end
== ')', next_end
);
3294 if (edit_formals_lists (next_end
, f_list_count
, def_dec_p
))
3298 /* Check that the function name in the header we are working on is the same
3299 as the one we would expect to find. If not, issue a warning and return
3302 if (f_list_count
== 0)
3304 const char *expected
= def_dec_p
->hash_entry
->symbol
;
3305 const char *func_name_start
;
3306 const char *func_name_limit
;
3307 size_t func_name_len
;
3309 for (func_name_limit
= start_formals
-1;
3310 ISSPACE ((const unsigned char)*func_name_limit
); )
3311 check_source (--func_name_limit
> clean_read_ptr
, 0);
3313 for (func_name_start
= func_name_limit
++;
3314 is_id_char (*func_name_start
);
3316 check_source (func_name_start
> clean_read_ptr
, 0);
3318 func_name_len
= func_name_limit
- func_name_start
;
3319 if (func_name_len
== 0)
3320 check_source (0, func_name_start
);
3321 if (func_name_len
!= strlen (expected
)
3322 || strncmp (func_name_start
, expected
, func_name_len
))
3324 fprintf (stderr
, "%s: %d: warning: found `%s' but expected `%s'\n",
3325 shortpath (NULL
, def_dec_p
->file
->hash_entry
->symbol
),
3326 identify_lineno (func_name_start
),
3327 dupnstr (func_name_start
, func_name_len
),
3333 output_up_to (start_formals
);
3336 if (f_list_count
== 0)
3337 output_string (def_dec_p
->formal_names
);
3338 #else /* !defined (UNPROTOIZE) */
3340 unsigned f_list_depth
;
3341 const f_list_chain_item
*flci_p
= def_dec_p
->f_list_chain
;
3343 /* At this point, the current value of f_list count says how many
3344 links we have to follow through the f_list_chain to get to the
3345 particular formals list that we need to output next. */
3347 for (f_list_depth
= 0; f_list_depth
< f_list_count
; f_list_depth
++)
3348 flci_p
= flci_p
->chain_next
;
3349 output_string (flci_p
->formals_list
);
3351 #endif /* !defined (UNPROTOIZE) */
3353 clean_read_ptr
= end_formals
- 1;
3357 /* Given a pointer to a byte in the clean text buffer which points to
3358 the beginning of a line that contains a "follower" token for a
3359 function definition header, do whatever is necessary to find the
3360 right closing paren for the rightmost formals list of the function
3361 definition header. */
3364 find_rightmost_formals_list (clean_text_p
)
3365 const char *clean_text_p
;
3367 const char *end_formals
;
3369 /* We are editing a function definition. The line number we did a seek
3370 to contains the first token which immediately follows the entire set of
3371 formals lists which are part of this particular function definition
3374 Our job now is to scan leftwards in the clean text looking for the
3375 right-paren which is at the end of the function header's rightmost
3378 If we ignore whitespace, this right paren should be the first one we
3379 see which is (ignoring whitespace) immediately followed either by the
3380 open curly-brace beginning the function body or by an alphabetic
3381 character (in the case where the function definition is in old (K&R)
3382 style and there are some declarations of formal parameters). */
3384 /* It is possible that the right paren we are looking for is on the
3385 current line (together with its following token). Just in case that
3386 might be true, we start out here by skipping down to the right end of
3387 the current line before starting our scan. */
3389 for (end_formals
= clean_text_p
; *end_formals
!= '\n'; end_formals
++)
3395 /* Now scan backwards while looking for the right end of the rightmost
3396 formals list associated with this function definition. */
3400 const char *l_brace_p
;
3402 /* Look leftward and try to find a right-paren. */
3404 while (*end_formals
!= ')')
3406 if (ISSPACE ((unsigned char)*end_formals
))
3407 while (ISSPACE ((unsigned char)*end_formals
))
3408 check_source (--end_formals
> clean_read_ptr
, 0);
3410 check_source (--end_formals
> clean_read_ptr
, 0);
3413 ch
= *(l_brace_p
= forward_to_next_token_char (end_formals
));
3414 /* Since we are unprotoizing an ANSI-style (prototyped) function
3415 definition, there had better not be anything (except whitespace)
3416 between the end of the ANSI formals list and the beginning of the
3417 function body (i.e. the '{'). */
3419 check_source (ch
== '{', l_brace_p
);
3422 #else /* !defined (UNPROTOIZE) */
3424 /* Now scan backwards while looking for the right end of the rightmost
3425 formals list associated with this function definition. */
3430 const char *l_brace_p
;
3432 /* Look leftward and try to find a right-paren. */
3434 while (*end_formals
!= ')')
3436 if (ISSPACE ((const unsigned char)*end_formals
))
3437 while (ISSPACE ((const unsigned char)*end_formals
))
3438 check_source (--end_formals
> clean_read_ptr
, 0);
3440 check_source (--end_formals
> clean_read_ptr
, 0);
3443 ch
= *(l_brace_p
= forward_to_next_token_char (end_formals
));
3445 /* Since it is possible that we found a right paren before the starting
3446 '{' of the body which IS NOT the one at the end of the real K&R
3447 formals list (say for instance, we found one embedded inside one of
3448 the old K&R formal parameter declarations) we have to check to be
3449 sure that this is in fact the right paren that we were looking for.
3451 The one we were looking for *must* be followed by either a '{' or
3452 by an alphabetic character, while others *cannot* validly be followed
3453 by such characters. */
3455 if ((ch
== '{') || ISALPHA ((unsigned char)ch
))
3458 /* At this point, we have found a right paren, but we know that it is
3459 not the one we were looking for, so backup one character and keep
3462 check_source (--end_formals
> clean_read_ptr
, 0);
3465 #endif /* !defined (UNPROTOIZE) */
3472 /* Insert into the output file a totally new declaration for a function
3473 which (up until now) was being called from within the current block
3474 without having been declared at any point such that the declaration
3475 was visible (i.e. in scope) at the point of the call.
3477 We need to add in explicit declarations for all such function calls
3478 in order to get the full benefit of prototype-based function call
3479 parameter type checking. */
3482 add_local_decl (def_dec_p
, clean_text_p
)
3483 const def_dec_info
*def_dec_p
;
3484 const char *clean_text_p
;
3486 const char *start_of_block
;
3487 const char *function_to_edit
= def_dec_p
->hash_entry
->symbol
;
3489 /* Don't insert new local explicit declarations unless explicitly requested
3495 /* Setup here to recover from confusing source code detected during this
3496 particular "edit". */
3499 if (setjmp (source_confusion_recovery
))
3501 restore_pointers ();
3502 fprintf (stderr
, "%s: local declaration for function `%s' not inserted\n",
3503 pname
, function_to_edit
);
3507 /* We have already done a seek to the start of the line which should
3508 contain *the* open curly brace which begins the block in which we need
3509 to insert an explicit function declaration (to replace the implicit one).
3511 Now we scan that line, starting from the left, until we find the
3512 open curly brace we are looking for. Note that there may actually be
3513 multiple open curly braces on the given line, but we will be happy
3514 with the leftmost one no matter what. */
3516 start_of_block
= clean_text_p
;
3517 while (*start_of_block
!= '{' && *start_of_block
!= '\n')
3518 check_source (++start_of_block
< clean_text_limit
, 0);
3520 /* Note that the line from the original source could possibly
3521 contain *no* open curly braces! This happens if the line contains
3522 a macro call which expands into a chunk of text which includes a
3523 block (and that block's associated open and close curly braces).
3524 In cases like this, we give up, issue a warning, and do nothing. */
3526 if (*start_of_block
!= '{')
3530 "\n%s: %d: warning: can't add declaration of `%s' into macro call\n",
3531 def_dec_p
->file
->hash_entry
->symbol
, def_dec_p
->line
,
3532 def_dec_p
->hash_entry
->symbol
);
3536 /* Figure out what a nice (pretty) indentation would be for the new
3537 declaration we are adding. In order to do this, we must scan forward
3538 from the '{' until we find the first line which starts with some
3539 non-whitespace characters (i.e. real "token" material). */
3542 const char *ep
= forward_to_next_token_char (start_of_block
) - 1;
3545 /* Now we have ep pointing at the rightmost byte of some existing indent
3546 stuff. At least that is the hope.
3548 We can now just scan backwards and find the left end of the existing
3549 indentation string, and then copy it to the output buffer. */
3551 for (sp
= ep
; ISSPACE ((const unsigned char)*sp
) && *sp
!= '\n'; sp
--)
3554 /* Now write out the open { which began this block, and any following
3555 trash up to and including the last byte of the existing indent that
3560 /* Now we go ahead and insert the new declaration at this point.
3562 If the definition of the given function is in the same file that we
3563 are currently editing, and if its full ANSI declaration normally
3564 would start with the keyword `extern', suppress the `extern'. */
3567 const char *decl
= def_dec_p
->definition
->ansi_decl
;
3569 if ((*decl
== 'e') && (def_dec_p
->file
== def_dec_p
->definition
->file
))
3571 output_string (decl
);
3574 /* Finally, write out a new indent string, just like the preceding one
3575 that we found. This will typically include a newline as the first
3576 character of the indent string. */
3578 output_bytes (sp
, (size_t) (ep
- sp
) + 1);
3582 /* Given a pointer to a file_info record, and a pointer to the beginning
3583 of a line (in the clean text buffer) which is assumed to contain the
3584 first "follower" token for the first function definition header in the
3585 given file, find a good place to insert some new global function
3586 declarations (which will replace scattered and imprecise implicit ones)
3587 and then insert the new explicit declaration at that point in the file. */
3590 add_global_decls (file_p
, clean_text_p
)
3591 const file_info
*file_p
;
3592 const char *clean_text_p
;
3594 const def_dec_info
*dd_p
;
3597 /* Setup here to recover from confusing source code detected during this
3598 particular "edit". */
3601 if (setjmp (source_confusion_recovery
))
3603 restore_pointers ();
3604 fprintf (stderr
, "%s: global declarations for file `%s' not inserted\n",
3605 pname
, shortpath (NULL
, file_p
->hash_entry
->symbol
));
3609 /* Start by finding a good location for adding the new explicit function
3610 declarations. To do this, we scan backwards, ignoring whitespace
3611 and comments and other junk until we find either a semicolon, or until
3612 we hit the beginning of the file. */
3614 scan_p
= find_rightmost_formals_list (clean_text_p
);
3617 if (scan_p
< clean_text_base
)
3619 check_source (scan_p
> clean_read_ptr
, 0);
3624 /* scan_p now points either to a semicolon, or to just before the start
3625 of the whole file. */
3627 /* Now scan forward for the first non-whitespace character. In theory,
3628 this should be the first character of the following function definition
3629 header. We will put in the added declarations just prior to that. */
3632 while (ISSPACE ((const unsigned char)*scan_p
))
3636 output_up_to (scan_p
);
3638 /* Now write out full prototypes for all of the things that had been
3639 implicitly declared in this file (but only those for which we were
3640 actually able to find unique matching definitions). Avoid duplicates
3641 by marking things that we write out as we go. */
3644 int some_decls_added
= 0;
3646 for (dd_p
= file_p
->defs_decs
; dd_p
; dd_p
= dd_p
->next_in_file
)
3647 if (dd_p
->is_implicit
&& dd_p
->definition
&& !dd_p
->definition
->written
)
3649 const char *decl
= dd_p
->definition
->ansi_decl
;
3651 /* If the function for which we are inserting a declaration is
3652 actually defined later in the same file, then suppress the
3653 leading `extern' keyword (if there is one). */
3655 if (*decl
== 'e' && (dd_p
->file
== dd_p
->definition
->file
))
3658 output_string ("\n");
3659 output_string (decl
);
3660 some_decls_added
= 1;
3661 ((NONCONST def_dec_info
*) dd_p
->definition
)->written
= 1;
3663 if (some_decls_added
)
3664 output_string ("\n\n");
3667 /* Unmark all of the definitions that we just marked. */
3669 for (dd_p
= file_p
->defs_decs
; dd_p
; dd_p
= dd_p
->next_in_file
)
3670 if (dd_p
->definition
)
3671 ((NONCONST def_dec_info
*) dd_p
->definition
)->written
= 0;
3674 #endif /* !defined (UNPROTOIZE) */
3676 /* Do the editing operation specifically for a function "definition". Note
3677 that editing operations for function "declarations" are handled by a
3678 separate routine above. */
3681 edit_fn_definition (def_dec_p
, clean_text_p
)
3682 const def_dec_info
*def_dec_p
;
3683 const char *clean_text_p
;
3685 const char *end_formals
;
3686 const char *function_to_edit
= def_dec_p
->hash_entry
->symbol
;
3688 /* Setup here to recover from confusing source code detected during this
3689 particular "edit". */
3692 if (setjmp (source_confusion_recovery
))
3694 restore_pointers ();
3695 fprintf (stderr
, "%s: definition of function `%s' not converted\n",
3696 pname
, function_to_edit
);
3700 end_formals
= find_rightmost_formals_list (clean_text_p
);
3702 /* end_of_formals now points to the closing right paren of the rightmost
3703 formals list which is actually part of the `header' of the function
3704 definition that we are converting. */
3706 /* If the header of this function definition looks like it declares a
3707 function with a variable number of arguments, and if the way it does
3708 that is different from that way we would like it (i.e. varargs vs.
3709 stdarg) then issue a warning and leave the header unconverted. */
3711 if (other_variable_style_function (def_dec_p
->ansi_decl
))
3714 fprintf (stderr
, "%s: %d: warning: definition of %s not converted\n",
3715 shortpath (NULL
, def_dec_p
->file
->hash_entry
->symbol
),
3716 identify_lineno (end_formals
),
3718 output_up_to (end_formals
);
3722 if (edit_formals_lists (end_formals
, def_dec_p
->f_list_count
, def_dec_p
))
3724 restore_pointers ();
3725 fprintf (stderr
, "%s: definition of function `%s' not converted\n",
3726 pname
, function_to_edit
);
3730 /* Have to output the last right paren because this never gets flushed by
3731 edit_formals_list. */
3733 output_up_to (end_formals
);
3738 const char *semicolon_p
;
3739 const char *limit_p
;
3741 int had_newlines
= 0;
3743 /* Now write out the K&R style formal declarations, one per line. */
3745 decl_p
= def_dec_p
->formal_decls
;
3746 limit_p
= decl_p
+ strlen (decl_p
);
3747 for (;decl_p
< limit_p
; decl_p
= semicolon_p
+ 2)
3749 for (semicolon_p
= decl_p
; *semicolon_p
!= ';'; semicolon_p
++)
3751 output_string ("\n");
3752 output_string (indent_string
);
3753 output_bytes (decl_p
, (size_t) ((semicolon_p
+ 1) - decl_p
));
3756 /* If there are no newlines between the end of the formals list and the
3757 start of the body, we should insert one now. */
3759 for (scan_p
= end_formals
+1; *scan_p
!= '{'; )
3761 if (*scan_p
== '\n')
3766 check_source (++scan_p
< clean_text_limit
, 0);
3769 output_string ("\n");
3771 #else /* !defined (UNPROTOIZE) */
3772 /* If we are protoizing, there may be some flotsam & jetsam (like comments
3773 and preprocessing directives) after the old formals list but before
3774 the following { and we would like to preserve that stuff while effectively
3775 deleting the existing K&R formal parameter declarations. We do so here
3776 in a rather tricky way. Basically, we white out any stuff *except*
3777 the comments/pp-directives in the original text buffer, then, if there
3778 is anything in this area *other* than whitespace, we output it. */
3780 const char *end_formals_orig
;
3781 const char *start_body
;
3782 const char *start_body_orig
;
3784 const char *scan_orig
;
3785 int have_flotsam
= 0;
3786 int have_newlines
= 0;
3788 for (start_body
= end_formals
+ 1; *start_body
!= '{';)
3789 check_source (++start_body
< clean_text_limit
, 0);
3791 end_formals_orig
= orig_text_base
+ (end_formals
- clean_text_base
);
3792 start_body_orig
= orig_text_base
+ (start_body
- clean_text_base
);
3793 scan
= end_formals
+ 1;
3794 scan_orig
= end_formals_orig
+ 1;
3795 for (; scan
< start_body
; scan
++, scan_orig
++)
3797 if (*scan
== *scan_orig
)
3799 have_newlines
|= (*scan_orig
== '\n');
3800 /* Leave identical whitespace alone. */
3801 if (!ISSPACE ((const unsigned char)*scan_orig
))
3802 *((NONCONST
char *)scan_orig
) = ' '; /* identical - so whiteout */
3808 output_bytes (end_formals_orig
+ 1,
3809 (size_t) (start_body_orig
- end_formals_orig
) - 1);
3812 output_string ("\n");
3814 output_string (" ");
3815 clean_read_ptr
= start_body
- 1;
3817 #endif /* !defined (UNPROTOIZE) */
3820 /* Clean up the clean text buffer. Do this by converting comments and
3821 preprocessing directives into spaces. Also convert line continuations
3822 into whitespace. Also, whiteout string and character literals. */
3825 do_cleaning (new_clean_text_base
, new_clean_text_limit
)
3826 char *new_clean_text_base
;
3827 char *new_clean_text_limit
;
3830 int non_whitespace_since_newline
= 0;
3832 for (scan_p
= new_clean_text_base
; scan_p
< new_clean_text_limit
; scan_p
++)
3836 case '/': /* Handle comments. */
3837 if (scan_p
[1] != '*')
3839 non_whitespace_since_newline
= 1;
3843 while (scan_p
[1] != '/' || scan_p
[0] != '*')
3845 if (!ISSPACE ((const unsigned char)*scan_p
))
3847 if (++scan_p
>= new_clean_text_limit
)
3854 case '#': /* Handle pp directives. */
3855 if (non_whitespace_since_newline
)
3858 while (scan_p
[1] != '\n' || scan_p
[0] == '\\')
3860 if (!ISSPACE ((const unsigned char)*scan_p
))
3862 if (++scan_p
>= new_clean_text_limit
)
3868 case '\'': /* Handle character literals. */
3869 non_whitespace_since_newline
= 1;
3870 while (scan_p
[1] != '\'' || scan_p
[0] == '\\')
3872 if (scan_p
[0] == '\\'
3873 && !ISSPACE ((const unsigned char)scan_p
[1]))
3875 if (!ISSPACE ((const unsigned char)*scan_p
))
3877 if (++scan_p
>= new_clean_text_limit
)
3883 case '"': /* Handle string literals. */
3884 non_whitespace_since_newline
= 1;
3885 while (scan_p
[1] != '"' || scan_p
[0] == '\\')
3887 if (scan_p
[0] == '\\'
3888 && !ISSPACE ((const unsigned char)scan_p
[1]))
3890 if (!ISSPACE ((const unsigned char)*scan_p
))
3892 if (++scan_p
>= new_clean_text_limit
)
3895 if (!ISSPACE ((const unsigned char)*scan_p
))
3900 case '\\': /* Handle line continuations. */
3901 if (scan_p
[1] != '\n')
3907 non_whitespace_since_newline
= 0; /* Reset. */
3916 break; /* Whitespace characters. */
3920 non_whitespace_since_newline
= 1;
3926 /* Given a pointer to the closing right parenthesis for a particular formals
3927 list (in the clean text buffer) find the corresponding left parenthesis
3928 and return a pointer to it. */
3931 careful_find_l_paren (p
)
3937 for (paren_depth
= 1, q
= p
-1; paren_depth
; check_source (--q
>= clean_text_base
, 0))
3952 /* Scan the clean text buffer for cases of function definitions that we
3953 don't really know about because they were preprocessed out when the
3954 aux info files were created.
3956 In this version of protoize/unprotoize we just give a warning for each
3957 one found. A later version may be able to at least unprotoize such
3960 Note that we may easily find all function definitions simply by
3961 looking for places where there is a left paren which is (ignoring
3962 whitespace) immediately followed by either a left-brace or by an
3963 upper or lower case letter. Whenever we find this combination, we
3964 have also found a function definition header.
3966 Finding function *declarations* using syntactic clues is much harder.
3967 I will probably try to do this in a later version though. */
3970 scan_for_missed_items (file_p
)
3971 const file_info
*file_p
;
3973 static const char *scan_p
;
3974 const char *limit
= clean_text_limit
- 3;
3975 static const char *backup_limit
;
3977 backup_limit
= clean_text_base
- 1;
3979 for (scan_p
= clean_text_base
; scan_p
< limit
; scan_p
++)
3983 static const char *last_r_paren
;
3984 const char *ahead_p
;
3986 last_r_paren
= scan_p
;
3988 for (ahead_p
= scan_p
+ 1; ISSPACE ((const unsigned char)*ahead_p
); )
3989 check_source (++ahead_p
< limit
, limit
);
3991 scan_p
= ahead_p
- 1;
3993 if (ISALPHA ((const unsigned char)*ahead_p
) || *ahead_p
== '{')
3995 const char *last_l_paren
;
3996 const int lineno
= identify_lineno (ahead_p
);
3998 if (setjmp (source_confusion_recovery
))
4001 /* We know we have a function definition header. Now skip
4002 leftwards over all of its associated formals lists. */
4006 last_l_paren
= careful_find_l_paren (last_r_paren
);
4007 for (last_r_paren
= last_l_paren
-1;
4008 ISSPACE ((const unsigned char)*last_r_paren
); )
4009 check_source (--last_r_paren
>= backup_limit
, backup_limit
);
4011 while (*last_r_paren
== ')');
4013 if (is_id_char (*last_r_paren
))
4015 const char *id_limit
= last_r_paren
+ 1;
4016 const char *id_start
;
4018 const def_dec_info
*dd_p
;
4020 for (id_start
= id_limit
-1; is_id_char (*id_start
); )
4021 check_source (--id_start
>= backup_limit
, backup_limit
);
4023 backup_limit
= id_start
;
4024 if ((id_length
= (size_t) (id_limit
- id_start
)) == 0)
4028 char *func_name
= (char *) alloca (id_length
+ 1);
4029 static const char * const stmt_keywords
[]
4030 = { "if", "else", "do", "while", "for", "switch", "case", "return", 0 };
4031 const char * const *stmt_keyword
;
4033 strncpy (func_name
, id_start
, id_length
);
4034 func_name
[id_length
] = '\0';
4036 /* We must check here to see if we are actually looking at
4037 a statement rather than an actual function call. */
4039 for (stmt_keyword
= stmt_keywords
; *stmt_keyword
; stmt_keyword
++)
4040 if (!strcmp (func_name
, *stmt_keyword
))
4044 fprintf (stderr
, "%s: found definition of `%s' at %s(%d)\n",
4047 shortpath (NULL
, file_p
->hash_entry
->symbol
),
4048 identify_lineno (id_start
));
4050 /* We really should check for a match of the function name
4051 here also, but why bother. */
4053 for (dd_p
= file_p
->defs_decs
; dd_p
; dd_p
= dd_p
->next_in_file
)
4054 if (dd_p
->is_func_def
&& dd_p
->line
== lineno
)
4057 /* If we make it here, then we did not know about this
4058 function definition. */
4060 fprintf (stderr
, "%s: %d: warning: `%s' excluded by preprocessing\n",
4061 shortpath (NULL
, file_p
->hash_entry
->symbol
),
4062 identify_lineno (id_start
), func_name
);
4063 fprintf (stderr
, "%s: function definition not converted\n",
4073 /* Do all editing operations for a single source file (either a "base" file
4074 or an "include" file). To do this we read the file into memory, keep a
4075 virgin copy there, make another cleaned in-core copy of the original file
4076 (i.e. one in which all of the comments and preprocessing directives have
4077 been replaced with whitespace), then use these two in-core copies of the
4078 file to make a new edited in-core copy of the file. Finally, rename the
4079 original file (as a way of saving it), and then write the edited version
4080 of the file from core to a disk file of the same name as the original.
4082 Note that the trick of making a copy of the original sans comments &
4083 preprocessing directives make the editing a whole lot easier. */
4087 const hash_table_entry
*hp
;
4089 struct stat stat_buf
;
4090 const file_info
*file_p
= hp
->fip
;
4091 char *new_orig_text_base
;
4092 char *new_orig_text_limit
;
4093 char *new_clean_text_base
;
4094 char *new_clean_text_limit
;
4097 int first_definition_in_file
;
4099 /* If we are not supposed to be converting this file, or if there is
4100 nothing in there which needs converting, just skip this file. */
4102 if (!needs_to_be_converted (file_p
))
4105 convert_filename
= file_p
->hash_entry
->symbol
;
4107 /* Convert a file if it is in a directory where we want conversion
4108 and the file is not excluded. */
4110 if (!directory_specified_p (convert_filename
)
4111 || file_excluded_p (convert_filename
))
4115 /* Don't even mention "system" include files unless we are
4116 protoizing. If we are protoizing, we mention these as a
4117 gentle way of prodding the user to convert his "system"
4118 include files to prototype format. */
4119 && !in_system_include_dir (convert_filename
)
4120 #endif /* defined (UNPROTOIZE) */
4122 fprintf (stderr
, "%s: `%s' not converted\n",
4123 pname
, shortpath (NULL
, convert_filename
));
4127 /* Let the user know what we are up to. */
4130 fprintf (stderr
, "%s: would convert file `%s'\n",
4131 pname
, shortpath (NULL
, convert_filename
));
4133 fprintf (stderr
, "%s: converting file `%s'\n",
4134 pname
, shortpath (NULL
, convert_filename
));
4137 /* Find out the size (in bytes) of the original file. */
4139 /* The cast avoids an erroneous warning on AIX. */
4140 if (my_stat ((char *)convert_filename
, &stat_buf
) == -1)
4142 int errno_val
= errno
;
4143 fprintf (stderr
, "%s: can't get status for file `%s': %s\n",
4144 pname
, shortpath (NULL
, convert_filename
),
4145 xstrerror (errno_val
));
4148 orig_size
= stat_buf
.st_size
;
4150 /* Allocate a buffer to hold the original text. */
4152 orig_text_base
= new_orig_text_base
= (char *) xmalloc (orig_size
+ 2);
4153 orig_text_limit
= new_orig_text_limit
= new_orig_text_base
+ orig_size
;
4155 /* Allocate a buffer to hold the cleaned-up version of the original text. */
4157 clean_text_base
= new_clean_text_base
= (char *) xmalloc (orig_size
+ 2);
4158 clean_text_limit
= new_clean_text_limit
= new_clean_text_base
+ orig_size
;
4159 clean_read_ptr
= clean_text_base
- 1;
4161 /* Allocate a buffer that will hopefully be large enough to hold the entire
4162 converted output text. As an initial guess for the maximum size of the
4163 output buffer, use 125% of the size of the original + some extra. This
4164 buffer can be expanded later as needed. */
4166 repl_size
= orig_size
+ (orig_size
>> 2) + 4096;
4167 repl_text_base
= (char *) xmalloc (repl_size
+ 2);
4168 repl_text_limit
= repl_text_base
+ repl_size
- 1;
4169 repl_write_ptr
= repl_text_base
- 1;
4174 /* Open the file to be converted in READ ONLY mode. */
4176 if ((input_file
= my_open (convert_filename
, O_RDONLY
, 0444)) == -1)
4178 int errno_val
= errno
;
4179 fprintf (stderr
, "%s: can't open file `%s' for reading: %s\n",
4180 pname
, shortpath (NULL
, convert_filename
),
4181 xstrerror (errno_val
));
4185 /* Read the entire original source text file into the original text buffer
4186 in one swell fwoop. Then figure out where the end of the text is and
4187 make sure that it ends with a newline followed by a null. */
4189 if (safe_read (input_file
, new_orig_text_base
, orig_size
) !=
4192 int errno_val
= errno
;
4194 fprintf (stderr
, "\n%s: error reading input file `%s': %s\n",
4195 pname
, shortpath (NULL
, convert_filename
),
4196 xstrerror (errno_val
));
4203 if (orig_size
== 0 || orig_text_limit
[-1] != '\n')
4205 *new_orig_text_limit
++ = '\n';
4209 /* Create the cleaned up copy of the original text. */
4211 memcpy (new_clean_text_base
, orig_text_base
,
4212 (size_t) (orig_text_limit
- orig_text_base
));
4213 do_cleaning (new_clean_text_base
, new_clean_text_limit
);
4218 size_t clean_size
= orig_text_limit
- orig_text_base
;
4219 char *const clean_filename
= (char *) alloca (strlen (convert_filename
) + 6 + 1);
4221 /* Open (and create) the clean file. */
4223 strcpy (clean_filename
, convert_filename
);
4224 strcat (clean_filename
, ".clean");
4225 if ((clean_file
= creat (clean_filename
, 0666)) == -1)
4227 int errno_val
= errno
;
4228 fprintf (stderr
, "%s: can't create/open clean file `%s': %s\n",
4229 pname
, shortpath (NULL
, clean_filename
),
4230 xstrerror (errno_val
));
4234 /* Write the clean file. */
4236 safe_write (clean_file
, new_clean_text_base
, clean_size
, clean_filename
);
4242 /* Do a simplified scan of the input looking for things that were not
4243 mentioned in the aux info files because of the fact that they were
4244 in a region of the source which was preprocessed-out (via #if or
4247 scan_for_missed_items (file_p
);
4249 /* Setup to do line-oriented forward seeking in the clean text buffer. */
4251 last_known_line_number
= 1;
4252 last_known_line_start
= clean_text_base
;
4254 /* Now get down to business and make all of the necessary edits. */
4257 const def_dec_info
*def_dec_p
;
4259 first_definition_in_file
= 1;
4260 def_dec_p
= file_p
->defs_decs
;
4261 for (; def_dec_p
; def_dec_p
= def_dec_p
->next_in_file
)
4263 const char *clean_text_p
= seek_to_line (def_dec_p
->line
);
4265 /* clean_text_p now points to the first character of the line which
4266 contains the `terminator' for the declaration or definition that
4267 we are about to process. */
4271 if (global_flag
&& def_dec_p
->is_func_def
&& first_definition_in_file
)
4273 add_global_decls (def_dec_p
->file
, clean_text_p
);
4274 first_definition_in_file
= 0;
4277 /* Don't edit this item if it is already in prototype format or if it
4278 is a function declaration and we have found no corresponding
4281 if (def_dec_p
->prototyped
4282 || (!def_dec_p
->is_func_def
&& !def_dec_p
->definition
))
4285 #endif /* !defined (UNPROTOIZE) */
4287 if (def_dec_p
->is_func_def
)
4288 edit_fn_definition (def_dec_p
, clean_text_p
);
4291 if (def_dec_p
->is_implicit
)
4292 add_local_decl (def_dec_p
, clean_text_p
);
4294 #endif /* !defined (UNPROTOIZE) */
4295 edit_fn_declaration (def_dec_p
, clean_text_p
);
4299 /* Finalize things. Output the last trailing part of the original text. */
4301 output_up_to (clean_text_limit
- 1);
4303 /* If this is just a test run, stop now and just deallocate the buffers. */
4307 free (new_orig_text_base
);
4308 free (new_clean_text_base
);
4309 free (repl_text_base
);
4313 /* Change the name of the original input file. This is just a quick way of
4314 saving the original file. */
4319 = (char *) xmalloc (strlen (convert_filename
) + strlen (save_suffix
) + 2);
4321 strcpy (new_filename
, convert_filename
);
4322 strcat (new_filename
, save_suffix
);
4323 if (my_link (convert_filename
, new_filename
) == -1)
4325 int errno_val
= errno
;
4326 if (errno_val
== EEXIST
)
4329 fprintf (stderr
, "%s: warning: file `%s' already saved in `%s'\n",
4331 shortpath (NULL
, convert_filename
),
4332 shortpath (NULL
, new_filename
));
4336 fprintf (stderr
, "%s: can't link file `%s' to `%s': %s\n",
4338 shortpath (NULL
, convert_filename
),
4339 shortpath (NULL
, new_filename
),
4340 xstrerror (errno_val
));
4346 if (my_unlink (convert_filename
) == -1)
4348 int errno_val
= errno
;
4349 fprintf (stderr
, "%s: can't delete file `%s': %s\n",
4350 pname
, shortpath (NULL
, convert_filename
),
4351 xstrerror (errno_val
));
4358 /* Open (and create) the output file. */
4360 if ((output_file
= creat (convert_filename
, 0666)) == -1)
4362 int errno_val
= errno
;
4363 fprintf (stderr
, "%s: can't create/open output file `%s': %s\n",
4364 pname
, shortpath (NULL
, convert_filename
),
4365 xstrerror (errno_val
));
4369 /* Write the output file. */
4372 unsigned int out_size
= (repl_write_ptr
+ 1) - repl_text_base
;
4374 safe_write (output_file
, repl_text_base
, out_size
, convert_filename
);
4377 close (output_file
);
4380 /* Deallocate the conversion buffers. */
4382 free (new_orig_text_base
);
4383 free (new_clean_text_base
);
4384 free (repl_text_base
);
4386 /* Change the mode of the output file to match the original file. */
4388 /* The cast avoids an erroneous warning on AIX. */
4389 if (my_chmod ((char *)convert_filename
, stat_buf
.st_mode
) == -1)
4391 int errno_val
= errno
;
4392 fprintf (stderr
, "%s: can't change mode of file `%s': %s\n",
4393 pname
, shortpath (NULL
, convert_filename
),
4394 xstrerror (errno_val
));
4397 /* Note: We would try to change the owner and group of the output file
4398 to match those of the input file here, except that may not be a good
4399 thing to do because it might be misleading. Also, it might not even
4400 be possible to do that (on BSD systems with quotas for instance). */
4403 /* Do all of the individual steps needed to do the protoization (or
4404 unprotoization) of the files referenced in the aux_info files given
4405 in the command line. */
4410 const char * const *base_pp
;
4411 const char * const * const end_pps
4412 = &base_source_filenames
[n_base_source_files
];
4416 #endif /* !defined (UNPROTOIZE) */
4418 /* One-by-one, check (and create if necessary), open, and read all of the
4419 stuff in each aux_info file. After reading each aux_info file, the
4420 aux_info_file just read will be automatically deleted unless the
4421 keep_flag is set. */
4423 for (base_pp
= base_source_filenames
; base_pp
< end_pps
; base_pp
++)
4424 process_aux_info_file (*base_pp
, keep_flag
, 0);
4428 /* Also open and read the special SYSCALLS.c aux_info file which gives us
4429 the prototypes for all of the standard system-supplied functions. */
4431 if (nondefault_syscalls_dir
)
4433 syscalls_absolute_filename
4434 = (char *) xmalloc (strlen (nondefault_syscalls_dir
)
4435 + sizeof (syscalls_filename
) + 1);
4436 strcpy (syscalls_absolute_filename
, nondefault_syscalls_dir
);
4440 syscalls_absolute_filename
4441 = (char *) xmalloc (strlen (default_syscalls_dir
)
4442 + sizeof (syscalls_filename
) + 1);
4443 strcpy (syscalls_absolute_filename
, default_syscalls_dir
);
4446 syscalls_len
= strlen (syscalls_absolute_filename
);
4447 if (*(syscalls_absolute_filename
+ syscalls_len
- 1) != '/')
4449 *(syscalls_absolute_filename
+ syscalls_len
++) = '/';
4450 *(syscalls_absolute_filename
+ syscalls_len
) = '\0';
4452 strcat (syscalls_absolute_filename
, syscalls_filename
);
4454 /* Call process_aux_info_file in such a way that it does not try to
4455 delete the SYSCALLS aux_info file. */
4457 process_aux_info_file (syscalls_absolute_filename
, 1, 1);
4459 #endif /* !defined (UNPROTOIZE) */
4461 /* When we first read in all of the information from the aux_info files
4462 we saved in it descending line number order, because that was likely to
4463 be faster. Now however, we want the chains of def & dec records to
4464 appear in ascending line number order as we get further away from the
4465 file_info record that they hang from. The following line causes all of
4466 these lists to be rearranged into ascending line number order. */
4468 visit_each_hash_node (filename_primary
, reverse_def_dec_list
);
4472 /* Now do the "real" work. The following line causes each declaration record
4473 to be "visited". For each of these nodes, an attempt is made to match
4474 up the function declaration with a corresponding function definition,
4475 which should have a full prototype-format formals list with it. Once
4476 these match-ups are made, the conversion of the function declarations
4477 to prototype format can be made. */
4479 visit_each_hash_node (function_name_primary
, connect_defs_and_decs
);
4481 #endif /* !defined (UNPROTOIZE) */
4483 /* Now convert each file that can be converted (and needs to be). */
4485 visit_each_hash_node (filename_primary
, edit_file
);
4489 /* If we are working in cplusplus mode, try to rename all .c files to .C
4490 files. Don't panic if some of the renames don't work. */
4492 if (cplusplus_flag
&& !nochange_flag
)
4493 visit_each_hash_node (filename_primary
, rename_c_file
);
4495 #endif /* !defined (UNPROTOIZE) */
4498 static struct option longopts
[] =
4500 {"version", 0, 0, 'V'},
4501 {"file_name", 0, 0, 'p'},
4502 {"quiet", 0, 0, 'q'},
4503 {"silent", 0, 0, 'q'},
4504 {"force", 0, 0, 'f'},
4505 {"keep", 0, 0, 'k'},
4506 {"nosave", 0, 0, 'N'},
4507 {"nochange", 0, 0, 'n'},
4508 {"compiler-options", 1, 0, 'c'},
4509 {"exclude", 1, 0, 'x'},
4510 {"directory", 1, 0, 'd'},
4512 {"indent", 1, 0, 'i'},
4514 {"local", 0, 0, 'l'},
4515 {"global", 0, 0, 'g'},
4517 {"syscalls-dir", 1, 0, 'B'},
4529 const char *params
= "";
4531 pname
= strrchr (argv
[0], '/');
4532 pname
= pname
? pname
+1 : argv
[0];
4534 cwd_buffer
= getpwd ();
4537 fprintf (stderr
, "%s: cannot get working directory: %s\n",
4538 pname
, xstrerror(errno
));
4539 exit (FATAL_EXIT_CODE
);
4542 /* By default, convert the files in the current directory. */
4543 directory_list
= string_list_cons (cwd_buffer
, NULL
);
4545 while ((c
= getopt_long (argc
, argv
,
4549 "B:c:Cd:gklnNp:qvVx:",
4551 longopts
, &longind
)) != EOF
)
4553 if (c
== 0) /* Long option. */
4554 c
= longopts
[longind
].val
;
4558 compiler_file_name
= optarg
;
4562 = string_list_cons (abspath (NULL
, optarg
), directory_list
);
4565 exclude_list
= string_list_cons (optarg
, exclude_list
);
4595 indent_string
= optarg
;
4597 #else /* !defined (UNPROTOIZE) */
4608 nondefault_syscalls_dir
= optarg
;
4610 #endif /* !defined (UNPROTOIZE) */
4616 /* Set up compile_params based on -p and -c options. */
4617 munge_compile_params (params
);
4619 n_base_source_files
= argc
- optind
;
4621 /* Now actually make a list of the base source filenames. */
4623 base_source_filenames
4624 = (const char **) xmalloc ((n_base_source_files
+ 1) * sizeof (char *));
4625 n_base_source_files
= 0;
4626 for (; optind
< argc
; optind
++)
4628 const char *path
= abspath (NULL
, argv
[optind
]);
4629 int len
= strlen (path
);
4631 if (path
[len
-1] == 'c' && path
[len
-2] == '.')
4632 base_source_filenames
[n_base_source_files
++] = path
;
4635 fprintf (stderr
, "%s: input file names must have .c suffixes: %s\n",
4636 pname
, shortpath (NULL
, path
));
4642 /* We are only interested in the very first identifier token in the
4643 definition of `va_list', so if there is more junk after that first
4644 identifier token, delete it from the `varargs_style_indicator'. */
4648 for (cp
= varargs_style_indicator
;
4649 ISALNUM ((const unsigned char)*cp
) || *cp
== '_'; cp
++)
4652 varargs_style_indicator
= savestring (varargs_style_indicator
,
4653 cp
- varargs_style_indicator
);
4655 #endif /* !defined (UNPROTOIZE) */
4662 fprintf (stderr
, "%s: %s\n", pname
, version_string
);
4666 exit (errors
? FATAL_EXIT_CODE
: SUCCESS_EXIT_CODE
);