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92a5ff5d | 1 | /* Protoize program - Original version by Ron Guilmette at MCC. |
5f8037c4 | 2 | |
34e56753 | 3 | Copyright (C) 1989, 1992 Free Software Foundation, Inc. |
5f8037c4 RS |
4 | |
5 | This file is part of GNU CC. | |
6 | ||
7 | GNU CC is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 2, or (at your option) | |
10 | any later version. | |
11 | ||
12 | GNU CC is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with GNU CC; see the file COPYING. If not, write to | |
19 | the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
20 | ||
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. */ | |
24 | ||
25 | #if defined(__cplusplus) && !defined(__STDC__) | |
26 | #define __STDC__ 1 | |
27 | #endif /* defined(__cplusplus) && !defined(__STDC__) */ | |
28 | ||
a2b22788 RS |
29 | #if defined(__GNUC__) || defined (__GNUG__) |
30 | #define VOLATILE volatile | |
31 | #else | |
32 | #define VOLATILE | |
33 | #endif | |
5f8037c4 | 34 | |
34e56753 RS |
35 | #ifndef __STDC__ |
36 | #define const | |
8241a41f | 37 | #define volatile |
34e56753 | 38 | #endif |
5f8037c4 | 39 | |
34e56753 | 40 | #include "config.h" |
a2b22788 | 41 | |
34e56753 RS |
42 | #if 0 |
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 */ | |
a2b22788 RS |
45 | /* If the user asked for POSIX via _POSIX_SOURCE, turn on POSIX code. */ |
46 | #if defined(_POSIX_SOURCE) && !defined(POSIX) | |
47 | #define POSIX | |
48 | #endif | |
34e56753 | 49 | #endif /* 0 */ |
5f8037c4 | 50 | |
f5188608 RS |
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. */ | |
56 | #undef _POSIX_SOURCE | |
57 | #define _POSIX_SOURCE | |
58 | #endif | |
59 | ||
5f8037c4 RS |
60 | #include <stdio.h> |
61 | #include <ctype.h> | |
62 | #include <errno.h> | |
63 | #include <sys/types.h> | |
64 | #include <sys/stat.h> | |
f5188608 RS |
65 | #ifdef POSIX |
66 | #include <dirent.h> | |
67 | #else | |
5f8037c4 | 68 | #include <sys/dir.h> |
f5188608 | 69 | #endif |
5f8037c4 RS |
70 | #include <setjmp.h> |
71 | #include "gvarargs.h" | |
a609bfc6 RS |
72 | |
73 | /* Include getopt.h for the sake of getopt_long. | |
74 | We don't need the declaration of getopt, and it could conflict | |
75 | with something from a system header file, so effectively nullify that. */ | |
76 | #define getopt getopt_loser | |
5f8037c4 RS |
77 | #include "getopt.h" |
78 | ||
5f8037c4 | 79 | extern int errno; |
a2b22788 RS |
80 | extern char *sys_errlist[]; |
81 | extern char *version_string; | |
5f8037c4 | 82 | |
5f8037c4 RS |
83 | /* Systems which are compatible only with POSIX 1003.1-1988 (but *not* |
84 | with POSIX 1003.1-1990), e.g. Ultrix 4.2, might not have | |
85 | const qualifiers in the prototypes in the system include files. | |
86 | Unfortunately, this can lead to GCC issuing lots of warnings for | |
87 | calls to the following functions. To eliminate these warnings we | |
88 | provide the following #defines. */ | |
89 | ||
34e56753 RS |
90 | #define my_access(file,flag) access((char *)file, flag) |
91 | #define my_stat(file,pkt) stat((char *)file, pkt) | |
92 | #define my_execvp(prog,argv) execvp((char *)prog, (char **)argv) | |
93 | #define my_link(file1, file2) link((char *)file1, (char *)file2) | |
94 | #define my_unlink(file) unlink((char *)file) | |
95 | #define my_open(file, mode, flag) open((char *)file, mode, flag) | |
96 | #define my_chmod(file, mode) chmod((char *)file, mode) | |
97 | ||
f5188608 | 98 | extern char *getpwd (); |
5f8037c4 | 99 | |
34e56753 | 100 | /* Aliases for pointers to void. |
f5188608 RS |
101 | These were made to facilitate compilation with old brain-dead DEC C |
102 | compilers which didn't properly grok `void*' types. */ | |
5f8037c4 | 103 | |
34e56753 RS |
104 | #ifdef __STDC__ |
105 | typedef void * pointer_type; | |
106 | typedef const void * const_pointer_type; | |
107 | #else | |
108 | typedef char * pointer_type; | |
109 | typedef char * const_pointer_type; | |
110 | #endif | |
111 | ||
112 | #if defined(POSIX) | |
113 | ||
114 | #include <stdlib.h> | |
115 | #include <unistd.h> | |
116 | #include <signal.h> | |
117 | #include <fcntl.h> | |
118 | #include <string.h> | |
5f8037c4 | 119 | |
a2b22788 | 120 | #else /* !defined(POSIX) */ |
5f8037c4 RS |
121 | |
122 | #define R_OK 4 /* Test for Read permission */ | |
123 | #define W_OK 2 /* Test for Write permission */ | |
124 | #define X_OK 1 /* Test for eXecute permission */ | |
125 | #define F_OK 0 /* Test for existence of File */ | |
126 | ||
127 | #define O_RDONLY 0 | |
128 | #define O_WRONLY 1 | |
129 | ||
a2b22788 RS |
130 | /* Declaring stat or __flsbuf with a prototype |
131 | causes conflicts with system headers on some systems. */ | |
5f8037c4 | 132 | |
a2b22788 | 133 | #ifndef abort |
34e56753 | 134 | extern VOLATILE void abort (); |
a2b22788 | 135 | #endif |
a019653e | 136 | extern int kill (); |
34e56753 | 137 | extern int creat (); |
a2b22788 | 138 | #if 0 /* These conflict with stdio.h on some systems. */ |
5f8037c4 RS |
139 | extern int fprintf (FILE *, const char *, ...); |
140 | extern int printf (const char *, ...); | |
f5188608 | 141 | extern int open (const char *, int, ...); |
a2b22788 | 142 | #endif /* 0 */ |
34e56753 RS |
143 | extern void exit (); |
144 | extern pointer_type malloc (); | |
145 | extern pointer_type realloc (); | |
146 | extern void free (); | |
147 | extern int read (); | |
148 | extern int write (); | |
149 | extern int close (); | |
150 | extern int fflush (); | |
151 | extern int atoi (); | |
152 | extern int puts (); | |
153 | extern int fputs (); | |
154 | extern int fputc (); | |
f5188608 RS |
155 | extern int link (); |
156 | extern int unlink (); | |
157 | extern int access (); | |
158 | extern int execvp (); | |
8241a41f | 159 | #ifndef setjmp |
34e56753 | 160 | extern int setjmp (); |
8241a41f RS |
161 | #endif |
162 | #ifndef longjmp | |
34e56753 RS |
163 | extern void longjmp (); |
164 | #endif | |
165 | ||
a019653e RS |
166 | extern char * strcat (); |
167 | extern int strcmp (); | |
168 | extern char * strcpy (); | |
a2b22788 | 169 | #if 0 /* size_t from sys/types.h may fail to match GCC. |
f5188608 RS |
170 | If so, we would get a warning from this. */ |
171 | extern size_t strlen () | |
a2b22788 | 172 | #endif |
a019653e RS |
173 | extern int strncmp (); |
174 | extern char * strncpy (); | |
175 | extern char * strrchr (); | |
5f8037c4 | 176 | |
eb76eb5a RS |
177 | /* Fork is not declared because the declaration caused a conflict |
178 | on the HPPA. */ | |
5f8037c4 | 179 | #if !(defined (USG) || defined (VMS)) |
5f8037c4 | 180 | #define fork vfork |
eb76eb5a | 181 | #endif /* (defined (USG) || defined (VMS)) */ |
5f8037c4 | 182 | |
a019653e | 183 | #endif /* !defined (POSIX) */ |
5f8037c4 RS |
184 | |
185 | /* Look for these where the `const' qualifier is intentionally cast aside. */ | |
186 | ||
187 | #define NONCONST | |
188 | ||
34e56753 | 189 | /* Define a STRINGIFY macro that's right for ANSI or traditional C. */ |
5f8037c4 | 190 | |
34e56753 | 191 | #ifdef __STDC__ |
5f8037c4 | 192 | #define STRINGIFY(STRING) #STRING |
34e56753 RS |
193 | #else |
194 | #define STRINGIFY(STRING) "STRING" | |
195 | #endif | |
5f8037c4 | 196 | |
5f8037c4 RS |
197 | /* Define a default place to find the SYSCALLS.X file. */ |
198 | ||
199 | #ifndef STD_PROTO_DIR | |
200 | #define STD_PROTO_DIR "/usr/local/lib" | |
a019653e | 201 | #endif /* !defined (STD_PROTO_DIR) */ |
5f8037c4 | 202 | |
5f8037c4 RS |
203 | /* Suffix of aux_info files. */ |
204 | ||
205 | static const char * const aux_info_suffix = ".X"; | |
206 | ||
a2b22788 | 207 | /* String to attach to filenames for saved versions of original files. */ |
5f8037c4 RS |
208 | |
209 | static const char * const save_suffix = ".save"; | |
210 | ||
211 | #ifndef UNPROTOIZE | |
212 | ||
213 | /* File name of the file which contains descriptions of standard system | |
214 | routines. Note that we never actually do anything with this file per se, | |
215 | but we do read in its corresponding aux_info file. */ | |
216 | ||
d742f26c | 217 | static const char syscalls_filename[] = "SYSCALLS.c"; |
5f8037c4 RS |
218 | |
219 | /* Default place to find the above file. */ | |
220 | ||
221 | static const char * const default_syscalls_dir = STD_PROTO_DIR; | |
222 | ||
a2b22788 | 223 | /* Variable to hold the complete absolutized filename of the SYSCALLS.c.X |
5f8037c4 RS |
224 | file. */ |
225 | ||
a2b22788 | 226 | static char * syscalls_absolute_filename; |
5f8037c4 | 227 | |
a019653e | 228 | #endif /* !defined (UNPROTOIZE) */ |
5f8037c4 RS |
229 | |
230 | /* Type of the structure that holds information about macro unexpansions. */ | |
231 | ||
232 | struct unexpansion_struct { | |
233 | const char *expanded; | |
234 | const char *contracted; | |
235 | }; | |
236 | typedef struct unexpansion_struct unexpansion; | |
237 | ||
238 | /* A table of conversions that may need to be made for some (stupid) older | |
239 | operating systems where these types are preprocessor macros rather than | |
240 | typedefs (as they really ought to be). | |
241 | ||
242 | WARNING: The contracted forms must be as small (or smaller) as the | |
243 | expanded forms, or else havoc will ensue. */ | |
244 | ||
245 | static const unexpansion unexpansions[] = { | |
246 | { "struct _iobuf", "FILE" }, | |
247 | { 0, 0 } | |
248 | }; | |
249 | ||
250 | /* The number of "primary" slots in the hash tables for filenames and for | |
251 | function names. This can be as big or as small as you like, except that | |
252 | it must be a power of two. */ | |
253 | ||
254 | #define HASH_TABLE_SIZE (1 << 9) | |
255 | ||
256 | /* Bit mask to use when computing hash values. */ | |
257 | ||
258 | static const int hash_mask = (HASH_TABLE_SIZE - 1); | |
259 | ||
260 | /* Make a table of default system include directories | |
261 | just as it is done in cccp.c. */ | |
262 | ||
263 | #ifndef STANDARD_INCLUDE_DIR | |
264 | #define STANDARD_INCLUDE_DIR "/usr/include" | |
265 | #endif | |
266 | ||
267 | #ifndef LOCAL_INCLUDE_DIR | |
268 | #define LOCAL_INCLUDE_DIR "/usr/local/include" | |
269 | #endif | |
270 | ||
8241a41f | 271 | struct default_include { const char *fname; int cplusplus; } include_defaults[] |
5f8037c4 RS |
272 | #ifdef INCLUDE_DEFAULTS |
273 | = INCLUDE_DEFAULTS; | |
274 | #else | |
275 | = { | |
276 | /* Pick up GNU C++ specific include files. */ | |
277 | { GPLUSPLUS_INCLUDE_DIR, 1}, | |
278 | { GCC_INCLUDE_DIR, 0}, | |
279 | #ifdef CROSS_COMPILE | |
280 | /* For cross-compilation, this dir name is generated | |
281 | automatically in Makefile.in. */ | |
282 | { CROSS_INCLUDE_DIR, 0 }, | |
283 | #else /* not CROSS_COMPILE */ | |
284 | { LOCAL_INCLUDE_DIR, 0}, | |
285 | /* Some systems have an extra dir of include files. */ | |
286 | #ifdef SYSTEM_INCLUDE_DIR | |
287 | { SYSTEM_INCLUDE_DIR, 0}, | |
288 | #endif | |
5f8037c4 | 289 | { STANDARD_INCLUDE_DIR, 0}, |
5f8037c4 RS |
290 | #endif /* not CROSS_COMPILE */ |
291 | { 0, 0} | |
292 | }; | |
293 | #endif /* no INCLUDE_DEFAULTS */ | |
294 | ||
295 | /* Datatype for lists of directories or filenames. */ | |
296 | struct string_list | |
297 | { | |
298 | char *name; | |
299 | struct string_list *next; | |
300 | }; | |
301 | ||
302 | /* List of directories in which files should be converted. */ | |
303 | ||
304 | struct string_list *directory_list; | |
305 | ||
306 | /* List of file names which should not be converted. | |
307 | A file is excluded if the end of its name, following a /, | |
308 | matches one of the names in this list. */ | |
309 | ||
310 | struct string_list *exclude_list; | |
311 | ||
312 | /* The name of the other style of variable-number-of-parameters functions | |
313 | (i.e. the style that we want to leave unconverted because we don't yet | |
314 | know how to convert them to this style. This string is used in warning | |
315 | messages. */ | |
316 | ||
317 | /* Also define here the string that we can search for in the parameter lists | |
318 | taken from the .X files which will unambiguously indicate that we have | |
319 | found a varargs style function. */ | |
320 | ||
321 | #ifdef UNPROTOIZE | |
322 | static const char * const other_var_style = "stdarg"; | |
a019653e | 323 | #else /* !defined (UNPROTOIZE) */ |
5f8037c4 | 324 | static const char * const other_var_style = "varargs"; |
a2b22788 RS |
325 | /* Note that this is a string containing the expansion of va_alist. |
326 | But in `main' we discard all but the first token. */ | |
a019653e RS |
327 | static const char *varargs_style_indicator = STRINGIFY (va_alist); |
328 | #endif /* !defined (UNPROTOIZE) */ | |
5f8037c4 RS |
329 | |
330 | /* The following two types are used to create hash tables. In this program, | |
331 | there are two hash tables which are used to store and quickly lookup two | |
332 | different classes of strings. The first type of strings stored in the | |
a2b22788 | 333 | first hash table are absolute filenames of files which protoize needs to |
5f8037c4 RS |
334 | know about. The second type of strings (stored in the second hash table) |
335 | are function names. It is this second class of strings which really | |
336 | inspired the use of the hash tables, because there may be a lot of them. */ | |
337 | ||
338 | typedef struct hash_table_entry_struct hash_table_entry; | |
339 | ||
340 | /* Do some typedefs so that we don't have to write "struct" so often. */ | |
341 | ||
342 | typedef struct def_dec_info_struct def_dec_info; | |
343 | typedef struct file_info_struct file_info; | |
344 | typedef struct f_list_chain_item_struct f_list_chain_item; | |
345 | ||
346 | /* In the struct below, note that the "_info" field has two different uses | |
a2b22788 RS |
347 | depending on the type of hash table we are in (i.e. either the filenames |
348 | hash table or the function names hash table). In the filenames hash table | |
5f8037c4 | 349 | the info fields of the entries point to the file_info struct which is |
a2b22788 | 350 | associated with each filename (1 per filename). In the function names |
5f8037c4 RS |
351 | hash table, the info field points to the head of a singly linked list of |
352 | def_dec_info entries which are all defs or decs of the function whose | |
353 | name is pointed to by the "symbol" field. Keeping all of the defs/decs | |
354 | for a given function name on a special list specifically for that function | |
355 | name makes it quick and easy to find out all of the important information | |
356 | about a given (named) function. */ | |
357 | ||
358 | struct hash_table_entry_struct { | |
359 | hash_table_entry * hash_next; /* -> to secondary entries */ | |
360 | const char * symbol; /* -> to the hashed string */ | |
361 | union { | |
362 | const def_dec_info * _ddip; | |
363 | file_info * _fip; | |
364 | } _info; | |
365 | }; | |
366 | #define ddip _info._ddip | |
367 | #define fip _info._fip | |
368 | ||
369 | /* Define a type specifically for our two hash tables. */ | |
370 | ||
371 | typedef hash_table_entry hash_table[HASH_TABLE_SIZE]; | |
372 | ||
373 | /* The following struct holds all of the important information about any | |
a2b22788 | 374 | single filename (e.g. file) which we need to know about. */ |
5f8037c4 RS |
375 | |
376 | struct file_info_struct { | |
377 | const hash_table_entry * hash_entry; /* -> to associated hash entry */ | |
378 | const def_dec_info * defs_decs; /* -> to chain of defs/decs */ | |
379 | time_t mtime; /* Time of last modification. */ | |
380 | }; | |
381 | ||
382 | /* Due to the possibility that functions may return pointers to functions, | |
383 | (which may themselves have their own parameter lists) and due to the | |
384 | fact that returned pointers-to-functions may be of type "pointer-to- | |
385 | function-returning-pointer-to-function" (ad nauseum) we have to keep | |
386 | an entire chain of ANSI style formal parameter lists for each function. | |
387 | ||
388 | Normally, for any given function, there will only be one formals list | |
389 | on the chain, but you never know. | |
390 | ||
391 | Note that the head of each chain of formals lists is pointed to by the | |
392 | `f_list_chain' field of the corresponding def_dec_info record. | |
393 | ||
394 | For any given chain, the item at the head of the chain is the *leftmost* | |
395 | parameter list seen in the actual C language function declaration. If | |
396 | there are other members of the chain, then these are linked in left-to-right | |
397 | order from the head of the chain. */ | |
398 | ||
399 | struct f_list_chain_item_struct { | |
400 | const f_list_chain_item * chain_next; /* -> to next item on chain */ | |
401 | const char * formals_list; /* -> to formals list string */ | |
402 | }; | |
403 | ||
404 | /* The following struct holds all of the important information about any | |
405 | single function definition or declaration which we need to know about. | |
406 | Note that for unprotoize we don't need to know very much because we | |
407 | never even create records for stuff that we don't intend to convert | |
408 | (like for instance defs and decs which are already in old K&R format | |
409 | and "implicit" function declarations). */ | |
410 | ||
411 | struct def_dec_info_struct { | |
412 | const def_dec_info * next_in_file; /* -> to rest of chain for file */ | |
413 | file_info * file; /* -> file_info for containing file */ | |
414 | int line; /* source line number of def/dec */ | |
415 | const char * ansi_decl; /* -> left end of ansi decl */ | |
416 | hash_table_entry * hash_entry; /* -> hash entry for function name */ | |
417 | unsigned int is_func_def; /* = 0 means this is a declaration */ | |
418 | const def_dec_info * next_for_func; /* -> to rest of chain for func name */ | |
419 | unsigned int f_list_count; /* count of formals lists we expect */ | |
420 | char prototyped; /* = 0 means already prototyped */ | |
421 | #ifndef UNPROTOIZE | |
422 | const f_list_chain_item * f_list_chain; /* -> chain of formals lists */ | |
423 | const def_dec_info * definition; /* -> def/dec containing related def */ | |
6dc42e49 | 424 | char is_static; /* = 0 means visibility is "extern" */ |
5f8037c4 RS |
425 | char is_implicit; /* != 0 for implicit func decl's */ |
426 | char written; /* != 0 means written for implicit */ | |
a019653e | 427 | #else /* !defined (UNPROTOIZE) */ |
5f8037c4 | 428 | const char * formal_names; /* -> to list of names of formals */ |
6dc42e49 | 429 | const char * formal_decls; /* -> to string of formal declarations */ |
a019653e | 430 | #endif /* !defined (UNPROTOIZE) */ |
5f8037c4 RS |
431 | }; |
432 | ||
a2b22788 | 433 | /* Pointer to the tail component of the filename by which this program was |
5f8037c4 RS |
434 | invoked. Used everywhere in error and warning messages. */ |
435 | ||
436 | static const char *pname; | |
437 | ||
438 | /* Error counter. Will be non-zero if we should give up at the next convenient | |
439 | stopping point. */ | |
440 | ||
441 | static int errors = 0; | |
442 | ||
443 | /* Option flags. */ | |
444 | /* ??? These comments should say what the flag mean as well as the options | |
445 | that set them. */ | |
446 | ||
a019653e RS |
447 | /* File name to use for running gcc. Allows GCC 2 to be named |
448 | something other than gcc. */ | |
8241a41f | 449 | static const char *compiler_file_name = "gcc"; |
ef91d7e2 | 450 | |
34e56753 RS |
451 | static int version_flag = 0; /* Print our version number. */ |
452 | static int quiet_flag = 0; /* Don't print messages normally. */ | |
453 | static int nochange_flag = 0; /* Don't convert, just say what files | |
454 | we would have converted. */ | |
455 | static int nosave_flag = 0; /* Don't save the old version. */ | |
456 | static int keep_flag = 0; /* Don't delete the .X files. */ | |
457 | static const char ** compile_params = 0; /* Option string for gcc. */ | |
5f8037c4 | 458 | #ifdef UNPROTOIZE |
34e56753 RS |
459 | static const char *indent_string = " "; /* Indentation for newly |
460 | inserted parm decls. */ | |
a019653e | 461 | #else /* !defined (UNPROTOIZE) */ |
34e56753 | 462 | static int local_flag = 0; /* Insert new local decls (when?). */ |
5f8037c4 | 463 | static int global_flag = 0; /* set by -g option */ |
34e56753 RS |
464 | static int cplusplus_flag = 0; /* Rename converted files to *.C. */ |
465 | static const char* nondefault_syscalls_dir = 0; /* Dir to look for | |
466 | SYSCALLS.c.X in. */ | |
a019653e | 467 | #endif /* !defined (UNPROTOIZE) */ |
5f8037c4 | 468 | |
bd0725f3 RS |
469 | /* An index into the compile_params array where we should insert the source |
470 | file name when we are ready to exec the C compiler. A zero value indicates | |
a019653e | 471 | that we have not yet called munge_compile_params. */ |
5f8037c4 | 472 | |
bd0725f3 RS |
473 | static int input_file_name_index = 0; |
474 | ||
475 | /* An index into the compile_params array where we should insert the filename | |
476 | for the aux info file, when we run the C compiler. */ | |
477 | static int aux_info_file_name_index = 0; | |
5f8037c4 RS |
478 | |
479 | /* Count of command line arguments which were "filename" arguments. */ | |
480 | ||
a2b22788 | 481 | static int n_base_source_files = 0; |
5f8037c4 RS |
482 | |
483 | /* Points to a malloc'ed list of pointers to all of the filenames of base | |
484 | source files which were specified on the command line. */ | |
485 | ||
a2b22788 | 486 | static const char **base_source_filenames; |
5f8037c4 RS |
487 | |
488 | /* Line number of the line within the current aux_info file that we | |
489 | are currently processing. Used for error messages in case the prototypes | |
490 | info file is corrupted somehow. */ | |
491 | ||
492 | static int current_aux_info_lineno; | |
493 | ||
494 | /* Pointer to the name of the source file currently being converted. */ | |
495 | ||
a2b22788 | 496 | static const char *convert_filename; |
5f8037c4 RS |
497 | |
498 | /* Pointer to relative root string (taken from aux_info file) which indicates | |
499 | where directory the user was in when he did the compilation step that | |
500 | produced the containing aux_info file. */ | |
501 | ||
a2b22788 | 502 | static const char *invocation_filename; |
5f8037c4 RS |
503 | |
504 | /* Pointer to the base of the input buffer that holds the original text for the | |
505 | source file currently being converted. */ | |
506 | ||
507 | static const char *orig_text_base; | |
508 | ||
509 | /* Pointer to the byte just beyond the end of the input buffer that holds the | |
510 | original text for the source file currently being converted. */ | |
511 | ||
512 | static const char *orig_text_limit; | |
513 | ||
514 | /* Pointer to the base of the input buffer that holds the cleaned text for the | |
515 | source file currently being converted. */ | |
516 | ||
517 | static const char *clean_text_base; | |
518 | ||
519 | /* Pointer to the byte just beyond the end of the input buffer that holds the | |
520 | cleaned text for the source file currently being converted. */ | |
521 | ||
522 | static const char *clean_text_limit; | |
523 | ||
524 | /* Pointer to the last byte in the cleaned text buffer that we have already | |
525 | (virtually) copied to the output buffer (or decided to ignore). */ | |
526 | ||
527 | static const char * clean_read_ptr; | |
528 | ||
529 | /* Pointer to the base of the output buffer that holds the replacement text | |
530 | for the source file currently being converted. */ | |
531 | ||
532 | static char *repl_text_base; | |
533 | ||
534 | /* Pointer to the byte just beyond the end of the output buffer that holds the | |
535 | replacement text for the source file currently being converted. */ | |
536 | ||
537 | static char *repl_text_limit; | |
538 | ||
539 | /* Pointer to the last byte which has been stored into the output buffer. | |
540 | The next byte to be stored should be stored just past where this points | |
541 | to. */ | |
542 | ||
543 | static char * repl_write_ptr; | |
544 | ||
545 | /* Pointer into the cleaned text buffer for the source file we are currently | |
546 | converting. This points to the first character of the line that we last | |
a019653e | 547 | did a "seek_to_line" to (see below). */ |
5f8037c4 RS |
548 | |
549 | static const char *last_known_line_start; | |
550 | ||
551 | /* Number of the line (in the cleaned text buffer) that we last did a | |
a019653e | 552 | "seek_to_line" to. Will be one if we just read a new source file |
5f8037c4 RS |
553 | into the cleaned text buffer. */ |
554 | ||
555 | static int last_known_line_number; | |
556 | ||
a2b22788 | 557 | /* The filenames hash table. */ |
5f8037c4 | 558 | |
a2b22788 | 559 | static hash_table filename_primary; |
5f8037c4 RS |
560 | |
561 | /* The function names hash table. */ | |
562 | ||
563 | static hash_table function_name_primary; | |
564 | ||
565 | /* The place to keep the recovery address which is used only in cases where | |
566 | we get hopelessly confused by something in the cleaned original text. */ | |
567 | ||
568 | static jmp_buf source_confusion_recovery; | |
569 | ||
a2b22788 | 570 | /* A pointer to the current directory filename (used by abspath). */ |
5f8037c4 RS |
571 | |
572 | static char *cwd_buffer; | |
573 | ||
574 | /* A place to save the read pointer until we are sure that an individual | |
575 | attempt at editing will succeed. */ | |
576 | ||
577 | static const char * saved_clean_read_ptr; | |
578 | ||
579 | /* A place to save the write pointer until we are sure that an individual | |
580 | attempt at editing will succeed. */ | |
581 | ||
582 | static char * saved_repl_write_ptr; | |
583 | ||
584 | /* Forward declaration. */ | |
585 | ||
34e56753 | 586 | static const char *shortpath (); |
5f8037c4 RS |
587 | \f |
588 | /* Allocate some space, but check that the allocation was successful. */ | |
ff57c94e | 589 | /* alloca.c uses this, so don't make it static. */ |
5f8037c4 | 590 | |
ff57c94e | 591 | pointer_type |
34e56753 RS |
592 | xmalloc (byte_count) |
593 | size_t byte_count; | |
5f8037c4 RS |
594 | { |
595 | pointer_type rv; | |
596 | ||
34e56753 RS |
597 | rv = malloc (byte_count); |
598 | if (rv == NULL) | |
5f8037c4 RS |
599 | { |
600 | fprintf (stderr, "\n%s: fatal error: can't allocate %u more bytes of memory\n", | |
a2b22788 | 601 | pname, byte_count); |
5f8037c4 RS |
602 | exit (1); |
603 | return 0; /* avoid warnings */ | |
604 | } | |
605 | else | |
606 | return rv; | |
607 | } | |
608 | ||
609 | /* Reallocate some space, but check that the reallocation was successful. */ | |
610 | ||
ff57c94e | 611 | pointer_type |
34e56753 RS |
612 | xrealloc (old_space, byte_count) |
613 | pointer_type old_space; | |
614 | size_t byte_count; | |
5f8037c4 RS |
615 | { |
616 | pointer_type rv; | |
617 | ||
34e56753 RS |
618 | rv = realloc (old_space, byte_count); |
619 | if (rv == NULL) | |
5f8037c4 RS |
620 | { |
621 | fprintf (stderr, "\n%s: fatal error: can't allocate %u more bytes of memory\n", | |
a2b22788 | 622 | pname, byte_count); |
5f8037c4 RS |
623 | exit (1); |
624 | return 0; /* avoid warnings */ | |
625 | } | |
626 | else | |
627 | return rv; | |
628 | } | |
629 | ||
630 | /* Deallocate the area pointed to by an arbitrary pointer, but first, strip | |
631 | the `const' qualifier from it and also make sure that the pointer value | |
632 | is non-null. */ | |
633 | ||
ff57c94e | 634 | void |
34e56753 RS |
635 | xfree (p) |
636 | const_pointer_type p; | |
5f8037c4 RS |
637 | { |
638 | if (p) | |
639 | free ((NONCONST pointer_type) p); | |
640 | } | |
641 | ||
642 | /* Make a copy of a string INPUT with size SIZE. */ | |
643 | ||
644 | static char * | |
34e56753 RS |
645 | savestring (input, size) |
646 | const char *input; | |
6f4870cf | 647 | unsigned int size; |
5f8037c4 RS |
648 | { |
649 | char *output = (char *) xmalloc (size + 1); | |
650 | strcpy (output, input); | |
651 | return output; | |
652 | } | |
653 | ||
8241a41f RS |
654 | /* Make a copy of the concatenation of INPUT1 and INPUT2. */ |
655 | ||
656 | static char * | |
657 | savestring2 (input1, size1, input2, size2) | |
658 | const char *input1; | |
6f4870cf | 659 | unsigned int size1; |
8241a41f | 660 | const char *input2; |
6f4870cf | 661 | unsigned int size2; |
8241a41f RS |
662 | { |
663 | char *output = (char *) xmalloc (size1 + size2 + 1); | |
664 | strcpy (output, input1); | |
665 | strcpy (&output[size1], input2); | |
666 | return output; | |
667 | } | |
668 | ||
5f8037c4 RS |
669 | /* More 'friendly' abort that prints the line and file. |
670 | config.h can #define abort fancy_abort if you like that sort of thing. */ | |
671 | ||
672 | void | |
673 | fancy_abort () | |
674 | { | |
675 | fprintf (stderr, "%s: internal abort\n", pname); | |
676 | exit (1); | |
677 | } | |
678 | \f | |
679 | /* Make a duplicate of a given string in a newly allocated area. */ | |
680 | ||
681 | static char * | |
34e56753 RS |
682 | dupstr (s) |
683 | const char *s; | |
5f8037c4 RS |
684 | { |
685 | return strcpy ((char *) xmalloc (strlen (s) + 1), s); | |
686 | } | |
687 | ||
688 | /* Make a duplicate of the first N bytes of a given string in a newly | |
689 | allocated area. */ | |
690 | ||
691 | static char * | |
34e56753 RS |
692 | dupnstr (s, n) |
693 | const char *s; | |
694 | size_t n; | |
5f8037c4 RS |
695 | { |
696 | char *ret_val = strncpy ((char *) xmalloc (n + 1), s, n); | |
697 | ||
698 | ret_val[n] = '\0'; | |
699 | return ret_val; | |
700 | } | |
701 | ||
6dc42e49 | 702 | /* Return a pointer to the first occurrence of s2 within s1 or NULL if s2 |
5f8037c4 RS |
703 | does not occur within s1. Assume neither s1 nor s2 are null pointers. */ |
704 | ||
705 | static const char * | |
34e56753 RS |
706 | substr (s1, s2) |
707 | const char *s1; | |
708 | const char *const s2; | |
5f8037c4 RS |
709 | { |
710 | for (; *s1 ; s1++) | |
711 | { | |
712 | const char *p1; | |
713 | const char *p2; | |
a2b22788 | 714 | int c; |
5f8037c4 RS |
715 | |
716 | for (p1 = s1, p2 = s2; c = *p2; p1++, p2++) | |
717 | if (*p1 != c) | |
718 | goto outer; | |
719 | return s1; | |
720 | outer: | |
721 | ; | |
722 | } | |
723 | return 0; | |
724 | } | |
725 | \f | |
726 | /* Get setup to recover in case the edit we are about to do goes awry. */ | |
727 | ||
728 | void | |
34e56753 | 729 | save_pointers () |
5f8037c4 RS |
730 | { |
731 | saved_clean_read_ptr = clean_read_ptr; | |
732 | saved_repl_write_ptr = repl_write_ptr; | |
733 | } | |
734 | ||
735 | /* Call this routine to recover our previous state whenever something looks | |
736 | too confusing in the source code we are trying to edit. */ | |
737 | ||
738 | void | |
34e56753 | 739 | restore_pointers () |
5f8037c4 RS |
740 | { |
741 | clean_read_ptr = saved_clean_read_ptr; | |
742 | repl_write_ptr = saved_repl_write_ptr; | |
743 | } | |
744 | ||
745 | /* Return true if the given character is a legal identifier character. */ | |
746 | ||
34e56753 RS |
747 | static int |
748 | is_id_char (ch) | |
749 | char ch; | |
5f8037c4 RS |
750 | { |
751 | return (isalnum (ch) || (ch == '_') || (ch == '$')); | |
752 | } | |
753 | ||
754 | /* Give a message indicating the proper way to invoke this program and then | |
755 | exit with non-zero status. */ | |
756 | ||
757 | static void | |
34e56753 | 758 | usage () |
5f8037c4 RS |
759 | { |
760 | #ifdef UNPROTOIZE | |
a2b22788 RS |
761 | fprintf (stderr, "%s: usage '%s [ -VqfnkN ] [ -i <istring> ] [ filename ... ]'\n", |
762 | pname, pname); | |
a019653e | 763 | #else /* !defined (UNPROTOIZE) */ |
a2b22788 RS |
764 | fprintf (stderr, "%s: usage '%s [ -VqfnkNlgC ] [ -B <diname> ] [ filename ... ]'\n", |
765 | pname, pname); | |
a019653e | 766 | #endif /* !defined (UNPROTOIZE) */ |
5f8037c4 RS |
767 | exit (1); |
768 | } | |
769 | ||
a2b22788 | 770 | /* Return true if the given filename (assumed to be an absolute filename) |
5f8037c4 RS |
771 | designates a file residing anywhere beneath any one of the "system" |
772 | include directories. */ | |
773 | ||
774 | static int | |
34e56753 RS |
775 | in_system_include_dir (path) |
776 | const char *path; | |
5f8037c4 RS |
777 | { |
778 | struct default_include *p; | |
779 | ||
780 | if (path[0] != '/') | |
a2b22788 | 781 | abort (); /* Must be an absolutized filename. */ |
5f8037c4 RS |
782 | |
783 | for (p = include_defaults; p->fname; p++) | |
784 | if (!strncmp (path, p->fname, strlen (p->fname)) | |
785 | && path[strlen (p->fname)] == '/') | |
786 | return 1; | |
787 | return 0; | |
788 | } | |
789 | \f | |
790 | #if 0 | |
a2b22788 | 791 | /* Return true if the given filename designates a file that the user has |
5f8037c4 RS |
792 | read access to and for which the user has write access to the containing |
793 | directory. */ | |
794 | ||
795 | static int | |
796 | file_could_be_converted (const char *path) | |
797 | { | |
798 | char *const dir_name = (char *) alloca (strlen (path) + 1); | |
799 | ||
34e56753 | 800 | if (my_access (path, R_OK)) |
5f8037c4 RS |
801 | return 0; |
802 | ||
803 | { | |
804 | char *dir_last_slash; | |
805 | ||
806 | strcpy (dir_name, path); | |
807 | dir_last_slash = strrchr (dir_name, '/'); | |
808 | if (dir_last_slash) | |
809 | *dir_last_slash = '\0'; | |
810 | else | |
a2b22788 | 811 | abort (); /* Should have been an absolutized filename. */ |
5f8037c4 RS |
812 | } |
813 | ||
34e56753 | 814 | if (my_access (path, W_OK)) |
5f8037c4 RS |
815 | return 0; |
816 | ||
817 | return 1; | |
818 | } | |
819 | ||
a2b22788 | 820 | /* Return true if the given filename designates a file that we are allowed |
5f8037c4 RS |
821 | to modify. Files which we should not attempt to modify are (a) "system" |
822 | include files, and (b) files which the user doesn't have write access to, | |
823 | and (c) files which reside in directories which the user doesn't have | |
824 | write access to. Unless requested to be quiet, give warnings about | |
825 | files that we will not try to convert for one reason or another. An | |
826 | exception is made for "system" include files, which we never try to | |
827 | convert and for which we don't issue the usual warnings. */ | |
828 | ||
829 | static int | |
6dc42e49 | 830 | file_normally_convertible (const char *path) |
5f8037c4 RS |
831 | { |
832 | char *const dir_name = alloca (strlen (path) + 1); | |
833 | ||
834 | if (in_system_include_dir (path)) | |
835 | return 0; | |
836 | ||
837 | { | |
838 | char *dir_last_slash; | |
839 | ||
840 | strcpy (dir_name, path); | |
841 | dir_last_slash = strrchr (dir_name, '/'); | |
842 | if (dir_last_slash) | |
843 | *dir_last_slash = '\0'; | |
844 | else | |
a2b22788 | 845 | abort (); /* Should have been an absolutized filename. */ |
5f8037c4 RS |
846 | } |
847 | ||
34e56753 | 848 | if (my_access (path, R_OK)) |
5f8037c4 RS |
849 | { |
850 | if (!quiet_flag) | |
851 | fprintf (stderr, "%s: warning: no read access for file `%s'\n", | |
a2b22788 | 852 | pname, shortpath (NULL, path)); |
5f8037c4 RS |
853 | return 0; |
854 | } | |
855 | ||
34e56753 | 856 | if (my_access (path, W_OK)) |
5f8037c4 RS |
857 | { |
858 | if (!quiet_flag) | |
859 | fprintf (stderr, "%s: warning: no write access for file `%s'\n", | |
a2b22788 | 860 | pname, shortpath (NULL, path)); |
5f8037c4 RS |
861 | return 0; |
862 | } | |
863 | ||
34e56753 | 864 | if (my_access (dir_name, W_OK)) |
5f8037c4 RS |
865 | { |
866 | if (!quiet_flag) | |
867 | fprintf (stderr, "%s: warning: no write access for dir containing `%s'\n", | |
a2b22788 | 868 | pname, shortpath (NULL, path)); |
5f8037c4 RS |
869 | return 0; |
870 | } | |
871 | ||
872 | return 1; | |
873 | } | |
874 | #endif /* 0 */ | |
875 | \f | |
876 | #ifndef UNPROTOIZE | |
877 | ||
878 | /* Return true if the given file_info struct refers to the special SYSCALLS.c.X | |
879 | file. Return false otherwise. */ | |
880 | ||
881 | static int | |
34e56753 RS |
882 | is_syscalls_file (fi_p) |
883 | const file_info *fi_p; | |
5f8037c4 | 884 | { |
d742f26c RS |
885 | char const *f = fi_p->hash_entry->symbol; |
886 | size_t fl = strlen (f), sysl = sizeof (syscalls_filename) - 1; | |
887 | return sysl <= fl && strcmp (f + fl - sysl, syscalls_filename) == 0; | |
5f8037c4 RS |
888 | } |
889 | ||
a019653e | 890 | #endif /* !defined (UNPROTOIZE) */ |
5f8037c4 RS |
891 | |
892 | /* Check to see if this file will need to have anything done to it on this | |
893 | run. If there is nothing in the given file which both needs conversion | |
894 | and for which we have the necessary stuff to do the conversion, return | |
895 | false. Otherwise, return true. | |
896 | ||
897 | Note that (for protoize) it is only valid to call this function *after* | |
898 | the connections between declarations and definitions have all been made | |
a019653e | 899 | by connect_defs_and_decs. */ |
5f8037c4 RS |
900 | |
901 | static int | |
34e56753 RS |
902 | needs_to_be_converted (file_p) |
903 | const file_info *file_p; | |
5f8037c4 RS |
904 | { |
905 | const def_dec_info *ddp; | |
906 | ||
907 | #ifndef UNPROTOIZE | |
908 | ||
909 | if (is_syscalls_file (file_p)) | |
910 | return 0; | |
911 | ||
a019653e | 912 | #endif /* !defined (UNPROTOIZE) */ |
5f8037c4 RS |
913 | |
914 | for (ddp = file_p->defs_decs; ddp; ddp = ddp->next_in_file) | |
915 | ||
916 | if ( | |
917 | ||
918 | #ifndef UNPROTOIZE | |
919 | ||
920 | /* ... and if we a protoizing and this function is in old style ... */ | |
921 | !ddp->prototyped | |
922 | /* ... and if this a definition or is a decl with an associated def ... */ | |
923 | && (ddp->is_func_def || (!ddp->is_func_def && ddp->definition)) | |
924 | ||
a019653e | 925 | #else /* defined (UNPROTOIZE) */ |
5f8037c4 RS |
926 | |
927 | /* ... and if we are unprotoizing and this function is in new style ... */ | |
928 | ddp->prototyped | |
929 | ||
a019653e | 930 | #endif /* defined (UNPROTOIZE) */ |
5f8037c4 RS |
931 | ) |
932 | /* ... then the containing file needs converting. */ | |
933 | return -1; | |
934 | return 0; | |
935 | } | |
936 | ||
937 | /* Return 1 if the file name NAME is in a directory | |
938 | that should be converted. */ | |
939 | ||
940 | static int | |
34e56753 RS |
941 | directory_specified_p (name) |
942 | const char *name; | |
5f8037c4 RS |
943 | { |
944 | struct string_list *p; | |
945 | ||
946 | for (p = directory_list; p; p = p->next) | |
947 | if (!strncmp (name, p->name, strlen (p->name)) | |
948 | && name[strlen (p->name)] == '/') | |
37114d0d RS |
949 | { |
950 | const char *q = name + strlen (p->name) + 1; | |
951 | ||
952 | /* If there are more slashes, it's in a subdir, so | |
953 | this match doesn't count. */ | |
954 | while (*q) | |
955 | if (*q++ == '/') | |
956 | goto lose; | |
957 | return 1; | |
958 | ||
959 | lose: ; | |
960 | } | |
5f8037c4 RS |
961 | |
962 | return 0; | |
963 | } | |
964 | ||
965 | /* Return 1 if the file named NAME should be excluded from conversion. */ | |
966 | ||
967 | static int | |
34e56753 RS |
968 | file_excluded_p (name) |
969 | const char *name; | |
5f8037c4 RS |
970 | { |
971 | struct string_list *p; | |
972 | int len = strlen (name); | |
973 | ||
974 | for (p = exclude_list; p; p = p->next) | |
975 | if (!strcmp (name + len - strlen (p->name), p->name) | |
976 | && name[len - strlen (p->name) - 1] == '/') | |
977 | return 1; | |
978 | ||
979 | return 0; | |
980 | } | |
981 | ||
982 | /* Construct a new element of a string_list. | |
983 | STRING is the new element value, and REST holds the remaining elements. */ | |
984 | ||
985 | static struct string_list * | |
34e56753 RS |
986 | string_list_cons (string, rest) |
987 | char *string; | |
8241a41f | 988 | struct string_list *rest; |
5f8037c4 | 989 | { |
34e56753 RS |
990 | struct string_list *temp |
991 | = (struct string_list *) xmalloc (sizeof (struct string_list)); | |
992 | ||
5f8037c4 RS |
993 | temp->next = rest; |
994 | temp->name = string; | |
995 | return temp; | |
996 | } | |
997 | \f | |
998 | /* ??? The GNU convention for mentioning function args in its comments | |
999 | is to capitalize them. So change "hash_tab_p" to HASH_TAB_P below. | |
1000 | Likewise for all the other functions. */ | |
1001 | ||
1002 | /* Given a hash table, apply some function to each node in the table. The | |
1003 | table to traverse is given as the "hash_tab_p" argument, and the | |
1004 | function to be applied to each node in the table is given as "func" | |
1005 | argument. */ | |
1006 | ||
1007 | static void | |
34e56753 RS |
1008 | visit_each_hash_node (hash_tab_p, func) |
1009 | const hash_table_entry *hash_tab_p; | |
1010 | void (*func)(); | |
5f8037c4 RS |
1011 | { |
1012 | const hash_table_entry *primary; | |
1013 | ||
1014 | for (primary = hash_tab_p; primary < &hash_tab_p[HASH_TABLE_SIZE]; primary++) | |
1015 | if (primary->symbol) | |
1016 | { | |
1017 | hash_table_entry *second; | |
1018 | ||
1019 | (*func)(primary); | |
1020 | for (second = primary->hash_next; second; second = second->hash_next) | |
1021 | (*func) (second); | |
1022 | } | |
1023 | } | |
1024 | ||
1025 | /* Initialize all of the fields of a new hash table entry, pointed | |
1026 | to by the "p" parameter. Note that the space to hold the entry | |
1027 | is assumed to have already been allocated before this routine is | |
1028 | called. */ | |
1029 | ||
1030 | static hash_table_entry * | |
34e56753 RS |
1031 | add_symbol (p, s) |
1032 | hash_table_entry *p; | |
1033 | const char *s; | |
5f8037c4 RS |
1034 | { |
1035 | p->hash_next = NULL; | |
1036 | p->symbol = dupstr (s); | |
1037 | p->ddip = NULL; | |
1038 | p->fip = NULL; | |
1039 | return p; | |
1040 | } | |
1041 | ||
a2b22788 | 1042 | /* Look for a particular function name or filename in the particular |
5f8037c4 RS |
1043 | hash table indicated by "hash_tab_p". If the name is not in the |
1044 | given hash table, add it. Either way, return a pointer to the | |
1045 | hash table entry for the given name. */ | |
1046 | ||
1047 | static hash_table_entry * | |
34e56753 RS |
1048 | lookup (hash_tab_p, search_symbol) |
1049 | hash_table_entry *hash_tab_p; | |
1050 | const char *search_symbol; | |
5f8037c4 RS |
1051 | { |
1052 | int hash_value = 0; | |
1053 | const char *search_symbol_char_p = search_symbol; | |
1054 | hash_table_entry *p; | |
1055 | ||
1056 | while (*search_symbol_char_p) | |
1057 | hash_value += *search_symbol_char_p++; | |
1058 | hash_value &= hash_mask; | |
1059 | p = &hash_tab_p[hash_value]; | |
1060 | if (! p->symbol) | |
1061 | return add_symbol (p, search_symbol); | |
1062 | if (!strcmp (p->symbol, search_symbol)) | |
1063 | return p; | |
1064 | while (p->hash_next) | |
1065 | { | |
1066 | p = p->hash_next; | |
1067 | if (!strcmp (p->symbol, search_symbol)) | |
1068 | return p; | |
1069 | } | |
1070 | p->hash_next = (hash_table_entry *) xmalloc (sizeof (hash_table_entry)); | |
1071 | p = p->hash_next; | |
1072 | return add_symbol (p, search_symbol); | |
1073 | } | |
1074 | \f | |
1075 | /* Throw a def/dec record on the junk heap. | |
1076 | ||
1077 | Also, since we are not using this record anymore, free up all of the | |
1078 | stuff it pointed to. */ | |
1079 | ||
34e56753 RS |
1080 | static void |
1081 | free_def_dec (p) | |
1082 | def_dec_info *p; | |
5f8037c4 RS |
1083 | { |
1084 | xfree (p->ansi_decl); | |
1085 | ||
1086 | #ifndef UNPROTOIZE | |
1087 | { | |
1088 | const f_list_chain_item * curr; | |
1089 | const f_list_chain_item * next; | |
1090 | ||
1091 | for (curr = p->f_list_chain; curr; curr = next) | |
1092 | { | |
1093 | next = curr->chain_next; | |
1094 | xfree (curr); | |
1095 | } | |
1096 | } | |
a019653e | 1097 | #endif /* !defined (UNPROTOIZE) */ |
5f8037c4 RS |
1098 | |
1099 | xfree (p); | |
1100 | } | |
1101 | ||
1102 | /* Unexpand as many macro symbol as we can find. | |
1103 | ||
1104 | If the given line must be unexpanded, make a copy of it in the heap and | |
1105 | return a pointer to the unexpanded copy. Otherwise return NULL. */ | |
1106 | ||
1107 | static char * | |
34e56753 RS |
1108 | unexpand_if_needed (aux_info_line) |
1109 | const char *aux_info_line; | |
5f8037c4 RS |
1110 | { |
1111 | static char *line_buf = 0; | |
1112 | static int line_buf_size = 0; | |
1113 | const unexpansion* unexp_p; | |
1114 | int got_unexpanded = 0; | |
1115 | const char *s; | |
1116 | char *copy_p = line_buf; | |
1117 | ||
1118 | if (line_buf == 0) | |
1119 | { | |
1120 | line_buf_size = 1024; | |
1121 | line_buf = (char *) xmalloc (line_buf_size); | |
1122 | } | |
1123 | ||
1124 | copy_p = line_buf; | |
1125 | ||
1126 | /* Make a copy of the input string in line_buf, expanding as necessary. */ | |
1127 | ||
1128 | for (s = aux_info_line; *s != '\n'; ) | |
1129 | { | |
1130 | for (unexp_p = unexpansions; unexp_p->expanded; unexp_p++) | |
1131 | { | |
1132 | const char *in_p = unexp_p->expanded; | |
1133 | size_t len = strlen (in_p); | |
1134 | ||
1135 | if (*s == *in_p && !strncmp (s, in_p, len) && !is_id_char (s[len])) | |
1136 | { | |
1137 | int size = strlen (unexp_p->contracted); | |
1138 | got_unexpanded = 1; | |
1139 | if (copy_p + size - line_buf >= line_buf_size) | |
1140 | { | |
1141 | int offset = copy_p - line_buf; | |
1142 | line_buf_size *= 2; | |
1143 | line_buf_size += size; | |
1144 | line_buf = (char *) xrealloc (line_buf, line_buf_size); | |
1145 | copy_p = line_buf + offset; | |
1146 | } | |
1147 | strcpy (copy_p, unexp_p->contracted); | |
1148 | copy_p += size; | |
1149 | ||
1150 | /* Assume the there will not be another replacement required | |
1151 | within the text just replaced. */ | |
1152 | ||
1153 | s += len; | |
1154 | goto continue_outer; | |
1155 | } | |
1156 | } | |
1157 | if (copy_p - line_buf == line_buf_size) | |
1158 | { | |
1159 | int offset = copy_p - line_buf; | |
1160 | line_buf_size *= 2; | |
1161 | line_buf = (char *) xrealloc (line_buf, line_buf_size); | |
1162 | copy_p = line_buf + offset; | |
1163 | } | |
1164 | *copy_p++ = *s++; | |
1165 | continue_outer: ; | |
1166 | } | |
1167 | if (copy_p + 2 - line_buf >= line_buf_size) | |
1168 | { | |
1169 | int offset = copy_p - line_buf; | |
1170 | line_buf_size *= 2; | |
1171 | line_buf = (char *) xrealloc (line_buf, line_buf_size); | |
1172 | copy_p = line_buf + offset; | |
1173 | } | |
1174 | *copy_p++ = '\n'; | |
1175 | *copy_p++ = '\0'; | |
1176 | ||
1177 | return (got_unexpanded ? dupstr (line_buf) : 0); | |
1178 | } | |
1179 | \f | |
a2b22788 RS |
1180 | /* Return the absolutized filename for the given relative |
1181 | filename. Note that if that filename is already absolute, it may | |
5f8037c4 RS |
1182 | still be returned in a modified form because this routine also |
1183 | eliminates redundant slashes and single dots and eliminates double | |
a2b22788 RS |
1184 | dots to get a shortest possible filename from the given input |
1185 | filename. The absolutization of relative filenames is made by | |
1186 | assuming that the given filename is to be taken as relative to | |
5f8037c4 RS |
1187 | the first argument (cwd) or to the current directory if cwd is |
1188 | NULL. */ | |
1189 | ||
1190 | static char * | |
34e56753 RS |
1191 | abspath (cwd, rel_filename) |
1192 | const char *cwd; | |
1193 | const char *rel_filename; | |
5f8037c4 RS |
1194 | { |
1195 | /* Setup the current working directory as needed. */ | |
1196 | const char *cwd2 = (cwd) ? cwd : cwd_buffer; | |
1197 | char *const abs_buffer | |
d45cf215 | 1198 | = (char *) alloca (strlen (cwd2) + strlen (rel_filename) + 2); |
5f8037c4 RS |
1199 | char *endp = abs_buffer; |
1200 | char *outp, *inp; | |
1201 | ||
d45cf215 | 1202 | /* Copy the filename (possibly preceded by the current working |
5f8037c4 RS |
1203 | directory name) into the absolutization buffer. */ |
1204 | ||
1205 | { | |
1206 | const char *src_p; | |
1207 | ||
a2b22788 | 1208 | if (rel_filename[0] != '/') |
5f8037c4 RS |
1209 | { |
1210 | src_p = cwd2; | |
1211 | while (*endp++ = *src_p++) | |
1212 | continue; | |
1213 | *(endp-1) = '/'; /* overwrite null */ | |
1214 | } | |
a2b22788 | 1215 | src_p = rel_filename; |
5f8037c4 RS |
1216 | while (*endp++ = *src_p++) |
1217 | continue; | |
5f8037c4 RS |
1218 | } |
1219 | ||
1220 | /* Now make a copy of abs_buffer into abs_buffer, shortening the | |
a2b22788 | 1221 | filename (by taking out slashes and dots) as we go. */ |
5f8037c4 RS |
1222 | |
1223 | outp = inp = abs_buffer; | |
1224 | *outp++ = *inp++; /* copy first slash */ | |
d742f26c RS |
1225 | #ifdef apollo |
1226 | if (inp[0] == '/') | |
1227 | *outp++ = *inp++; /* copy second slash */ | |
1228 | #endif | |
5f8037c4 RS |
1229 | for (;;) |
1230 | { | |
1231 | if (!inp[0]) | |
1232 | break; | |
1233 | else if (inp[0] == '/' && outp[-1] == '/') | |
1234 | { | |
1235 | inp++; | |
1236 | continue; | |
1237 | } | |
1238 | else if (inp[0] == '.' && outp[-1] == '/') | |
1239 | { | |
1240 | if (!inp[1]) | |
1241 | break; | |
1242 | else if (inp[1] == '/') | |
1243 | { | |
1244 | inp += 2; | |
1245 | continue; | |
1246 | } | |
1247 | else if ((inp[1] == '.') && (inp[2] == 0 || inp[2] == '/')) | |
1248 | { | |
1249 | inp += (inp[2] == '/') ? 3 : 2; | |
1250 | outp -= 2; | |
1251 | while (outp >= abs_buffer && *outp != '/') | |
1252 | outp--; | |
1253 | if (outp < abs_buffer) | |
1254 | { | |
1255 | /* Catch cases like /.. where we try to backup to a | |
1256 | point above the absolute root of the logical file | |
1257 | system. */ | |
1258 | ||
a2b22788 RS |
1259 | fprintf (stderr, "%s: invalid file name: %s\n", |
1260 | pname, rel_filename); | |
5f8037c4 RS |
1261 | exit (1); |
1262 | } | |
1263 | *++outp = '\0'; | |
1264 | continue; | |
1265 | } | |
1266 | } | |
1267 | *outp++ = *inp++; | |
1268 | } | |
1269 | ||
1270 | /* On exit, make sure that there is a trailing null, and make sure that | |
1271 | the last character of the returned string is *not* a slash. */ | |
1272 | ||
1273 | *outp = '\0'; | |
1274 | if (outp[-1] == '/') | |
1275 | *--outp = '\0'; | |
1276 | ||
1277 | /* Make a copy (in the heap) of the stuff left in the absolutization | |
1278 | buffer and return a pointer to the copy. */ | |
1279 | ||
1280 | return dupstr (abs_buffer); | |
1281 | } | |
1282 | \f | |
a2b22788 | 1283 | /* Given a filename (and possibly a directory name from which the filename |
5f8037c4 | 1284 | is relative) return a string which is the shortest possible |
a2b22788 | 1285 | equivalent for the corresponding full (absolutized) filename. The |
5f8037c4 | 1286 | shortest possible equivalent may be constructed by converting the |
a2b22788 RS |
1287 | absolutized filename to be a relative filename (i.e. relative to |
1288 | the actual current working directory). However if a relative filename | |
1289 | is longer, then the full absolute filename is returned. | |
5f8037c4 RS |
1290 | |
1291 | KNOWN BUG: | |
1292 | ||
a2b22788 RS |
1293 | Note that "simple-minded" conversion of any given type of filename (either |
1294 | relative or absolute) may not result in a valid equivalent filename if any | |
1295 | subpart of the original filename is actually a symbolic link. */ | |
5f8037c4 RS |
1296 | |
1297 | static const char * | |
34e56753 RS |
1298 | shortpath (cwd, filename) |
1299 | const char *cwd; | |
1300 | const char *filename; | |
5f8037c4 RS |
1301 | { |
1302 | char *rel_buffer; | |
1303 | char *rel_buf_p; | |
1304 | char *cwd_p = cwd_buffer; | |
1305 | char *path_p; | |
1306 | int unmatched_slash_count = 0; | |
d742f26c | 1307 | size_t filename_len = strlen (filename); |
5f8037c4 | 1308 | |
a2b22788 | 1309 | path_p = abspath (cwd, filename); |
d742f26c | 1310 | rel_buf_p = rel_buffer = (char *) xmalloc (filename_len); |
5f8037c4 RS |
1311 | |
1312 | while (*cwd_p && (*cwd_p == *path_p)) | |
1313 | { | |
1314 | cwd_p++; | |
1315 | path_p++; | |
1316 | } | |
d742f26c | 1317 | if (!*cwd_p && (!*path_p || *path_p == '/')) /* whole pwd matched */ |
5f8037c4 RS |
1318 | { |
1319 | if (!*path_p) /* input *is* the current path! */ | |
1320 | return "."; | |
1321 | else | |
1322 | return ++path_p; | |
1323 | } | |
1324 | else | |
1325 | { | |
1326 | if (*path_p) | |
1327 | { | |
1328 | --cwd_p; | |
1329 | --path_p; | |
1330 | while (*cwd_p != '/') /* backup to last slash */ | |
1331 | { | |
1332 | --cwd_p; | |
1333 | --path_p; | |
1334 | } | |
1335 | cwd_p++; | |
1336 | path_p++; | |
1337 | unmatched_slash_count++; | |
1338 | } | |
526fef40 RS |
1339 | |
1340 | /* Find out how many directory levels in cwd were *not* matched. */ | |
5f8037c4 RS |
1341 | while (*cwd_p) |
1342 | if (*cwd_p++ == '/') | |
526fef40 RS |
1343 | unmatched_slash_count++; |
1344 | ||
1345 | /* Now we know how long the "short name" will be. | |
1346 | Reject it if longer than the input. */ | |
1347 | if (unmatched_slash_count * 3 + strlen (path_p) >= filename_len) | |
1348 | return filename; | |
1349 | ||
1350 | /* For each of them, put a `../' at the beginning of the short name. */ | |
5f8037c4 RS |
1351 | while (unmatched_slash_count--) |
1352 | { | |
526fef40 RS |
1353 | /* Give up if the result gets to be longer |
1354 | than the absolute path name. */ | |
d742f26c RS |
1355 | if (rel_buffer + filename_len <= rel_buf_p + 3) |
1356 | return filename; | |
5f8037c4 RS |
1357 | *rel_buf_p++ = '.'; |
1358 | *rel_buf_p++ = '.'; | |
1359 | *rel_buf_p++ = '/'; | |
1360 | } | |
d742f26c | 1361 | |
526fef40 | 1362 | /* Then tack on the unmatched part of the desired file's name. */ |
d742f26c RS |
1363 | do |
1364 | { | |
1365 | if (rel_buffer + filename_len <= rel_buf_p) | |
1366 | return filename; | |
1367 | } | |
1368 | while (*rel_buf_p++ = *path_p++); | |
1369 | ||
5f8037c4 RS |
1370 | --rel_buf_p; |
1371 | if (*(rel_buf_p-1) == '/') | |
1372 | *--rel_buf_p = '\0'; | |
5f8037c4 RS |
1373 | return rel_buffer; |
1374 | } | |
5f8037c4 RS |
1375 | } |
1376 | \f | |
a2b22788 | 1377 | /* Lookup the given filename in the hash table for filenames. If it is a |
5f8037c4 | 1378 | new one, then the hash table info pointer will be null. In this case, |
a2b22788 | 1379 | we create a new file_info record to go with the filename, and we initialize |
5f8037c4 RS |
1380 | that record with some reasonable values. */ |
1381 | ||
8241a41f RS |
1382 | /* FILENAME was const, but that causes a warning on AIX when calling stat. |
1383 | That is probably a bug in AIX, but might as well avoid the warning. */ | |
1384 | ||
5f8037c4 | 1385 | static file_info * |
34e56753 RS |
1386 | find_file (filename, do_not_stat) |
1387 | char *filename; | |
1388 | int do_not_stat; | |
5f8037c4 RS |
1389 | { |
1390 | hash_table_entry *hash_entry_p; | |
1391 | ||
a2b22788 | 1392 | hash_entry_p = lookup (filename_primary, filename); |
5f8037c4 RS |
1393 | if (hash_entry_p->fip) |
1394 | return hash_entry_p->fip; | |
1395 | else | |
1396 | { | |
1397 | struct stat stat_buf; | |
1398 | file_info *file_p = (file_info *) xmalloc (sizeof (file_info)); | |
1399 | ||
1400 | /* If we cannot get status on any given source file, give a warning | |
1401 | and then just set its time of last modification to infinity. */ | |
1402 | ||
1403 | if (do_not_stat) | |
1404 | stat_buf.st_mtime = (time_t) 0; | |
1405 | else | |
1406 | { | |
34e56753 | 1407 | if (my_stat (filename, &stat_buf) == -1) |
5f8037c4 RS |
1408 | { |
1409 | fprintf (stderr, "%s: error: can't get status of `%s': %s\n", | |
a2b22788 | 1410 | pname, shortpath (NULL, filename), sys_errlist[errno]); |
5f8037c4 RS |
1411 | stat_buf.st_mtime = (time_t) -1; |
1412 | } | |
1413 | } | |
1414 | ||
1415 | hash_entry_p->fip = file_p; | |
1416 | file_p->hash_entry = hash_entry_p; | |
1417 | file_p->defs_decs = NULL; | |
1418 | file_p->mtime = stat_buf.st_mtime; | |
1419 | return file_p; | |
1420 | } | |
1421 | } | |
1422 | ||
1423 | /* Generate a fatal error because some part of the aux_info file is | |
1424 | messed up. */ | |
1425 | ||
1426 | static void | |
34e56753 | 1427 | aux_info_corrupted () |
5f8037c4 RS |
1428 | { |
1429 | fprintf (stderr, "\n%s: fatal error: aux info file corrupted at line %d\n", | |
a2b22788 | 1430 | pname, current_aux_info_lineno); |
5f8037c4 RS |
1431 | exit (1); |
1432 | } | |
1433 | ||
1434 | /* ??? This comment is vague. Say what the condition is for. */ | |
a019653e | 1435 | /* Check to see that a condition is true. This is kind of like an assert. */ |
5f8037c4 | 1436 | |
34e56753 RS |
1437 | static void |
1438 | check_aux_info (cond) | |
1439 | int cond; | |
5f8037c4 RS |
1440 | { |
1441 | if (! cond) | |
1442 | aux_info_corrupted (); | |
1443 | } | |
1444 | ||
1445 | /* Given a pointer to the closing right parenthesis for a particular formals | |
1446 | list (in a aux_info file) find the corresponding left parenthesis and | |
1447 | return a pointer to it. */ | |
1448 | ||
1449 | static const char * | |
34e56753 RS |
1450 | find_corresponding_lparen (p) |
1451 | const char *p; | |
5f8037c4 RS |
1452 | { |
1453 | const char *q; | |
1454 | int paren_depth; | |
1455 | ||
1456 | for (paren_depth = 1, q = p-1; paren_depth; q--) | |
1457 | { | |
1458 | switch (*q) | |
1459 | { | |
1460 | case ')': | |
1461 | paren_depth++; | |
1462 | break; | |
1463 | case '(': | |
1464 | paren_depth--; | |
1465 | break; | |
1466 | } | |
1467 | } | |
1468 | return ++q; | |
1469 | } | |
1470 | \f | |
1471 | /* Given a line from an aux info file, and a time at which the aux info | |
1472 | file it came from was created, check to see if the item described in | |
1473 | the line comes from a file which has been modified since the aux info | |
1474 | file was created. If so, return non-zero, else return zero. */ | |
1475 | ||
1476 | static int | |
34e56753 RS |
1477 | referenced_file_is_newer (l, aux_info_mtime) |
1478 | const char *l; | |
1479 | time_t aux_info_mtime; | |
5f8037c4 RS |
1480 | { |
1481 | const char *p; | |
1482 | file_info *fi_p; | |
1483 | char *filename; | |
1484 | ||
1485 | check_aux_info (l[0] == '/'); | |
1486 | check_aux_info (l[1] == '*'); | |
1487 | check_aux_info (l[2] == ' '); | |
1488 | ||
1489 | { | |
1490 | const char *filename_start = p = l + 3; | |
1491 | ||
1492 | while (*p != ':') | |
1493 | p++; | |
1494 | filename = (char *) alloca ((size_t) (p - filename_start) + 1); | |
1495 | strncpy (filename, filename_start, (size_t) (p - filename_start)); | |
1496 | filename[p-filename_start] = '\0'; | |
1497 | } | |
1498 | ||
1499 | /* Call find_file to find the file_info record associated with the file | |
1500 | which contained this particular def or dec item. Note that this call | |
1501 | may cause a new file_info record to be created if this is the first time | |
1502 | that we have ever known about this particular file. */ | |
1503 | ||
a2b22788 | 1504 | fi_p = find_file (abspath (invocation_filename, filename), 0); |
5f8037c4 RS |
1505 | |
1506 | return (fi_p->mtime > aux_info_mtime); | |
1507 | } | |
1508 | \f | |
1509 | /* Given a line of info from the aux_info file, create a new | |
1510 | def_dec_info record to remember all of the important information about | |
1511 | a function definition or declaration. | |
1512 | ||
1513 | Link this record onto the list of such records for the particular file in | |
d45cf215 | 1514 | which it occurred in proper (descending) line number order (for now). |
5f8037c4 RS |
1515 | |
1516 | If there is an identical record already on the list for the file, throw | |
1517 | this one away. Doing so takes care of the (useless and troublesome) | |
1518 | duplicates which are bound to crop up due to multiple inclusions of any | |
1519 | given individual header file. | |
1520 | ||
1521 | Finally, link the new def_dec record onto the list of such records | |
1522 | pertaining to this particular function name. */ | |
1523 | ||
1524 | static void | |
34e56753 RS |
1525 | save_def_or_dec (l, is_syscalls) |
1526 | const char *l; | |
1527 | int is_syscalls; | |
5f8037c4 RS |
1528 | { |
1529 | const char *p; | |
1530 | const char *semicolon_p; | |
1531 | def_dec_info *def_dec_p = (def_dec_info *) xmalloc (sizeof (def_dec_info)); | |
1532 | ||
1533 | #ifndef UNPROTOIZE | |
1534 | def_dec_p->written = 0; | |
a019653e | 1535 | #endif /* !defined (UNPROTOIZE) */ |
5f8037c4 RS |
1536 | |
1537 | /* Start processing the line by picking off 5 pieces of information from | |
1538 | the left hand end of the line. These are filename, line number, | |
1539 | new/old/implicit flag (new = ANSI prototype format), definition or | |
1540 | declaration flag, and extern/static flag). */ | |
1541 | ||
1542 | check_aux_info (l[0] == '/'); | |
1543 | check_aux_info (l[1] == '*'); | |
1544 | check_aux_info (l[2] == ' '); | |
1545 | ||
1546 | { | |
1547 | const char *filename_start = p = l + 3; | |
1548 | char *filename; | |
1549 | ||
1550 | while (*p != ':') | |
1551 | p++; | |
1552 | filename = (char *) alloca ((size_t) (p - filename_start) + 1); | |
1553 | strncpy (filename, filename_start, (size_t) (p - filename_start)); | |
1554 | filename[p-filename_start] = '\0'; | |
1555 | ||
1556 | /* Call find_file to find the file_info record associated with the file | |
1557 | which contained this particular def or dec item. Note that this call | |
1558 | may cause a new file_info record to be created if this is the first time | |
1559 | that we have ever known about this particular file. | |
1560 | ||
a2b22788 | 1561 | Note that we started out by forcing all of the base source file names |
5f8037c4 | 1562 | (i.e. the names of the aux_info files with the .X stripped off) into the |
a2b22788 RS |
1563 | filenames hash table, and we simultaneously setup file_info records for |
1564 | all of these base file names (even if they may be useless later). | |
1565 | The file_info records for all of these "base" file names (properly) | |
5f8037c4 | 1566 | act as file_info records for the "original" (i.e. un-included) files |
bd0725f3 | 1567 | which were submitted to gcc for compilation (when the -aux-info |
5f8037c4 RS |
1568 | option was used). */ |
1569 | ||
a2b22788 | 1570 | def_dec_p->file = find_file (abspath (invocation_filename, filename), is_syscalls); |
5f8037c4 RS |
1571 | } |
1572 | ||
1573 | { | |
1574 | const char *line_number_start = ++p; | |
1575 | char line_number[10]; | |
1576 | ||
1577 | while (*p != ':') | |
1578 | p++; | |
1579 | strncpy (line_number, line_number_start, (size_t) (p - line_number_start)); | |
1580 | line_number[p-line_number_start] = '\0'; | |
1581 | def_dec_p->line = atoi (line_number); | |
1582 | } | |
1583 | ||
1584 | /* Check that this record describes a new-style, old-style, or implicit | |
1585 | definition or declaration. */ | |
1586 | ||
1587 | p++; /* Skip over the `:'. */ | |
1588 | check_aux_info ((*p == 'N') || (*p == 'O') || (*p == 'I')); | |
1589 | ||
1590 | /* Is this a new style (ANSI prototyped) definition or declaration? */ | |
1591 | ||
1592 | def_dec_p->prototyped = (*p == 'N'); | |
1593 | ||
1594 | #ifndef UNPROTOIZE | |
1595 | ||
1596 | /* Is this an implicit declaration? */ | |
1597 | ||
1598 | def_dec_p->is_implicit = (*p == 'I'); | |
1599 | ||
a019653e | 1600 | #endif /* !defined (UNPROTOIZE) */ |
5f8037c4 RS |
1601 | |
1602 | p++; | |
1603 | ||
1604 | check_aux_info ((*p == 'C') || (*p == 'F')); | |
1605 | ||
1606 | /* Is this item a function definition (F) or a declaration (C). Note that | |
1607 | we treat item taken from the syscalls file as though they were function | |
1608 | definitions regardless of what the stuff in the file says. */ | |
1609 | ||
1610 | def_dec_p->is_func_def = ((*p++ == 'F') || is_syscalls); | |
1611 | ||
1612 | #ifndef UNPROTOIZE | |
1613 | def_dec_p->definition = 0; /* Fill this in later if protoizing. */ | |
a019653e | 1614 | #endif /* !defined (UNPROTOIZE) */ |
5f8037c4 RS |
1615 | |
1616 | check_aux_info (*p++ == ' '); | |
1617 | check_aux_info (*p++ == '*'); | |
1618 | check_aux_info (*p++ == '/'); | |
1619 | check_aux_info (*p++ == ' '); | |
1620 | ||
1621 | #ifdef UNPROTOIZE | |
1622 | check_aux_info ((!strncmp (p, "static", 6)) || (!strncmp (p, "extern", 6))); | |
a019653e | 1623 | #else /* !defined (UNPROTOIZE) */ |
5f8037c4 RS |
1624 | if (!strncmp (p, "static", 6)) |
1625 | def_dec_p->is_static = -1; | |
1626 | else if (!strncmp (p, "extern", 6)) | |
1627 | def_dec_p->is_static = 0; | |
1628 | else | |
1629 | check_aux_info (0); /* Didn't find either `extern' or `static'. */ | |
a019653e | 1630 | #endif /* !defined (UNPROTOIZE) */ |
5f8037c4 RS |
1631 | |
1632 | { | |
1633 | const char *ansi_start = p; | |
1634 | ||
1635 | p += 6; /* Pass over the "static" or "extern". */ | |
1636 | ||
1637 | /* We are now past the initial stuff. Search forward from here to find | |
1638 | the terminating semicolon that should immediately follow the entire | |
1639 | ANSI format function declaration. */ | |
1640 | ||
1641 | while (*++p != ';') | |
1642 | continue; | |
1643 | ||
1644 | semicolon_p = p; | |
1645 | ||
1646 | /* Make a copy of the ansi declaration part of the line from the aux_info | |
1647 | file. */ | |
1648 | ||
1649 | def_dec_p->ansi_decl | |
1650 | = dupnstr (ansi_start, (size_t) ((semicolon_p+1) - ansi_start)); | |
1651 | } | |
1652 | ||
1653 | /* Backup and point at the final right paren of the final argument list. */ | |
1654 | ||
1655 | p--; | |
1656 | ||
1657 | /* Now isolate a whole set of formal argument lists, one-by-one. Normally, | |
1658 | there will only be one list to isolate, but there could be more. */ | |
1659 | ||
1660 | def_dec_p->f_list_count = 0; | |
1661 | ||
1662 | #ifndef UNPROTOIZE | |
1663 | def_dec_p->f_list_chain = NULL; | |
a019653e | 1664 | #endif /* !defined (UNPROTOIZE) */ |
5f8037c4 RS |
1665 | |
1666 | for (;;) | |
1667 | { | |
1668 | const char *left_paren_p = find_corresponding_lparen (p); | |
1669 | #ifndef UNPROTOIZE | |
1670 | { | |
1671 | f_list_chain_item *cip = | |
1672 | (f_list_chain_item *) xmalloc (sizeof (f_list_chain_item)); | |
1673 | ||
1674 | cip->formals_list | |
1675 | = dupnstr (left_paren_p + 1, (size_t) (p - (left_paren_p+1))); | |
1676 | ||
1677 | /* Add the new chain item at the head of the current list. */ | |
1678 | ||
1679 | cip->chain_next = def_dec_p->f_list_chain; | |
1680 | def_dec_p->f_list_chain = cip; | |
1681 | } | |
a019653e | 1682 | #endif /* !defined (UNPROTOIZE) */ |
5f8037c4 RS |
1683 | def_dec_p->f_list_count++; |
1684 | ||
1685 | p = left_paren_p - 2; | |
1686 | ||
1687 | /* p must now point either to another right paren, or to the last | |
1688 | character of the name of the function that was declared/defined. | |
1689 | If p points to another right paren, then this indicates that we | |
1690 | are dealing with multiple formals lists. In that case, there | |
d45cf215 | 1691 | really should be another right paren preceding this right paren. */ |
5f8037c4 RS |
1692 | |
1693 | if (*p != ')') | |
1694 | break; | |
1695 | else | |
1696 | check_aux_info (*--p == ')'); | |
1697 | } | |
1698 | ||
1699 | ||
1700 | { | |
1701 | const char *past_fn = p + 1; | |
1702 | ||
1703 | check_aux_info (*past_fn == ' '); | |
1704 | ||
1705 | /* Scan leftwards over the identifier that names the function. */ | |
1706 | ||
1707 | while (is_id_char (*p)) | |
1708 | p--; | |
1709 | p++; | |
1710 | ||
1711 | /* p now points to the leftmost character of the function name. */ | |
1712 | ||
1713 | { | |
34e56753 | 1714 | char *fn_string = (char *) alloca (past_fn - p + 1); |
5f8037c4 RS |
1715 | |
1716 | strncpy (fn_string, p, (size_t) (past_fn - p)); | |
1717 | fn_string[past_fn-p] = '\0'; | |
1718 | def_dec_p->hash_entry = lookup (function_name_primary, fn_string); | |
1719 | } | |
1720 | } | |
1721 | ||
1722 | /* Look at all of the defs and decs for this function name that we have | |
1723 | collected so far. If there is already one which is at the same | |
1724 | line number in the same file, then we can discard this new def_dec_info | |
1725 | record. | |
1726 | ||
1727 | As an extra assurance that any such pair of (nominally) identical | |
1728 | function declarations are in fact identical, we also compare the | |
1729 | ansi_decl parts of the lines from the aux_info files just to be on | |
1730 | the safe side. | |
1731 | ||
1732 | This comparison will fail if (for instance) the user was playing | |
1733 | messy games with the preprocessor which ultimately causes one | |
1734 | function declaration in one header file to look differently when | |
1735 | that file is included by two (or more) other files. */ | |
1736 | ||
1737 | { | |
1738 | const def_dec_info *other; | |
1739 | ||
1740 | for (other = def_dec_p->hash_entry->ddip; other; other = other->next_for_func) | |
1741 | { | |
1742 | if (def_dec_p->line == other->line && def_dec_p->file == other->file) | |
1743 | { | |
1744 | if (strcmp (def_dec_p->ansi_decl, other->ansi_decl)) | |
1745 | { | |
1746 | fprintf (stderr, "%s: error: declaration of function `%s' at %s(%d) takes different forms\n", | |
1747 | pname, | |
1748 | def_dec_p->hash_entry->symbol, | |
1749 | def_dec_p->file->hash_entry->symbol, | |
1750 | def_dec_p->line); | |
1751 | exit (1); | |
1752 | } | |
1753 | free_def_dec (def_dec_p); | |
1754 | return; | |
1755 | } | |
1756 | } | |
1757 | } | |
1758 | ||
1759 | #ifdef UNPROTOIZE | |
1760 | ||
1761 | /* If we are doing unprotoizing, we must now setup the pointers that will | |
1762 | point to the K&R name list and to the K&R argument declarations list. | |
1763 | ||
1764 | Note that if this is only a function declaration, then we should not | |
1765 | expect to find any K&R style formals list following the ANSI-style | |
1766 | formals list. This is because GCC knows that such information is | |
1767 | useless in the case of function declarations (function definitions | |
1768 | are a different story however). | |
1769 | ||
1770 | Since we are unprotoizing, we don't need any such lists anyway. | |
1771 | All we plan to do is to delete all characters between ()'s in any | |
1772 | case. */ | |
1773 | ||
1774 | def_dec_p->formal_names = NULL; | |
1775 | def_dec_p->formal_decls = NULL; | |
1776 | ||
1777 | if (def_dec_p->is_func_def) | |
1778 | { | |
1779 | p = semicolon_p; | |
1780 | check_aux_info (*++p == ' '); | |
1781 | check_aux_info (*++p == '/'); | |
1782 | check_aux_info (*++p == '*'); | |
1783 | check_aux_info (*++p == ' '); | |
1784 | check_aux_info (*++p == '('); | |
1785 | ||
1786 | { | |
1787 | const char *kr_names_start = ++p; /* Point just inside '('. */ | |
1788 | ||
1789 | while (*p++ != ')') | |
1790 | continue; | |
1791 | p--; /* point to closing right paren */ | |
1792 | ||
1793 | /* Make a copy of the K&R parameter names list. */ | |
1794 | ||
1795 | def_dec_p->formal_names | |
1796 | = dupnstr (kr_names_start, (size_t) (p - kr_names_start)); | |
1797 | } | |
1798 | ||
1799 | check_aux_info (*++p == ' '); | |
1800 | p++; | |
1801 | ||
1802 | /* p now points to the first character of the K&R style declarations | |
1803 | list (if there is one) or to the star-slash combination that ends | |
1804 | the comment in which such lists get embedded. */ | |
1805 | ||
1806 | /* Make a copy of the K&R formal decls list and set the def_dec record | |
1807 | to point to it. */ | |
1808 | ||
1809 | if (*p == '*') /* Are there no K&R declarations? */ | |
1810 | { | |
1811 | check_aux_info (*++p == '/'); | |
1812 | def_dec_p->formal_decls = ""; | |
1813 | } | |
1814 | else | |
1815 | { | |
1816 | const char *kr_decls_start = p; | |
1817 | ||
1818 | while (p[0] != '*' || p[1] != '/') | |
1819 | p++; | |
1820 | p--; | |
1821 | ||
1822 | check_aux_info (*p == ' '); | |
1823 | ||
1824 | def_dec_p->formal_decls | |
1825 | = dupnstr (kr_decls_start, (size_t) (p - kr_decls_start)); | |
1826 | } | |
1827 | ||
1828 | /* Handle a special case. If we have a function definition marked as | |
1829 | being in "old" style, and if it's formal names list is empty, then | |
1830 | it may actually have the string "void" in its real formals list | |
1831 | in the original source code. Just to make sure, we will get setup | |
1832 | to convert such things anyway. | |
1833 | ||
1834 | This kludge only needs to be here because of an insurmountable | |
1835 | problem with generating .X files. */ | |
1836 | ||
1837 | if (!def_dec_p->prototyped && !*def_dec_p->formal_names) | |
1838 | def_dec_p->prototyped = 1; | |
1839 | } | |
1840 | ||
1841 | /* Since we are unprotoizing, if this item is already in old (K&R) style, | |
1842 | we can just ignore it. If that is true, throw away the itme now. */ | |
1843 | ||
1844 | if (!def_dec_p->prototyped) | |
1845 | { | |
1846 | free_def_dec (def_dec_p); | |
1847 | return; | |
1848 | } | |
1849 | ||
a019653e | 1850 | #endif /* defined (UNPROTOIZE) */ |
5f8037c4 RS |
1851 | |
1852 | /* Add this record to the head of the list of records pertaining to this | |
1853 | particular function name. */ | |
1854 | ||
1855 | def_dec_p->next_for_func = def_dec_p->hash_entry->ddip; | |
1856 | def_dec_p->hash_entry->ddip = def_dec_p; | |
1857 | ||
1858 | /* Add this new def_dec_info record to the sorted list of def_dec_info | |
1859 | records for this file. Note that we don't have to worry about duplicates | |
1860 | (caused by multiple inclusions of header files) here because we have | |
1861 | already eliminated duplicates above. */ | |
1862 | ||
1863 | if (!def_dec_p->file->defs_decs) | |
1864 | { | |
1865 | def_dec_p->file->defs_decs = def_dec_p; | |
1866 | def_dec_p->next_in_file = NULL; | |
1867 | } | |
1868 | else | |
1869 | { | |
1870 | int line = def_dec_p->line; | |
1871 | const def_dec_info *prev = NULL; | |
1872 | const def_dec_info *curr = def_dec_p->file->defs_decs; | |
1873 | const def_dec_info *next = curr->next_in_file; | |
1874 | ||
1875 | while (next && (line < curr->line)) | |
1876 | { | |
1877 | prev = curr; | |
1878 | curr = next; | |
1879 | next = next->next_in_file; | |
1880 | } | |
1881 | if (line >= curr->line) | |
1882 | { | |
1883 | def_dec_p->next_in_file = curr; | |
1884 | if (prev) | |
1885 | ((NONCONST def_dec_info *) prev)->next_in_file = def_dec_p; | |
1886 | else | |
1887 | def_dec_p->file->defs_decs = def_dec_p; | |
1888 | } | |
1889 | else /* assert (next == NULL); */ | |
1890 | { | |
1891 | ((NONCONST def_dec_info *) curr)->next_in_file = def_dec_p; | |
1892 | /* assert (next == NULL); */ | |
1893 | def_dec_p->next_in_file = next; | |
1894 | } | |
1895 | } | |
1896 | } | |
1897 | \f | |
bd0725f3 RS |
1898 | /* Set up the vector COMPILE_PARAMS which is the argument list for running GCC. |
1899 | Also set input_file_name_index and aux_info_file_name_index | |
1900 | to the indices of the slots where the file names should go. */ | |
1901 | ||
1902 | /* We initialize the vector by removing -g, -O, -S, -c, and -o options, | |
1903 | and adding '-aux-info AUXFILE -S -o /dev/null INFILE' at the end. */ | |
5f8037c4 RS |
1904 | |
1905 | static void | |
34e56753 RS |
1906 | munge_compile_params (params_list) |
1907 | const char *params_list; | |
5f8037c4 | 1908 | { |
bd0725f3 RS |
1909 | /* Build up the contents in a temporary vector |
1910 | that is so big that to has to be big enough. */ | |
8241a41f | 1911 | const char **temp_params |
6f4870cf | 1912 | = (const char **) alloca ((strlen (params_list) + 8) * sizeof (char *)); |
5f8037c4 RS |
1913 | int param_count = 0; |
1914 | const char *param; | |
1915 | ||
a019653e | 1916 | temp_params[param_count++] = compiler_file_name; |
5f8037c4 RS |
1917 | for (;;) |
1918 | { | |
1919 | while (isspace (*params_list)) | |
1920 | params_list++; | |
1921 | if (!*params_list) | |
1922 | break; | |
1923 | param = params_list; | |
1924 | while (*params_list && !isspace (*params_list)) | |
1925 | params_list++; | |
1926 | if (param[0] != '-') | |
1927 | temp_params[param_count++] | |
1928 | = dupnstr (param, (size_t) (params_list - param)); | |
1929 | else | |
1930 | { | |
1931 | switch (param[1]) | |
1932 | { | |
1933 | case 'g': | |
1934 | case 'O': | |
1935 | case 'S': | |
1936 | case 'c': | |
1937 | break; /* Don't copy these. */ | |
1938 | case 'o': | |
1939 | while (isspace (*params_list)) | |
1940 | params_list++; | |
1941 | while (*params_list && !isspace (*params_list)) | |
1942 | params_list++; | |
1943 | break; | |
1944 | default: | |
1945 | temp_params[param_count++] | |
1946 | = dupnstr (param, (size_t) (params_list - param)); | |
1947 | } | |
1948 | } | |
1949 | if (!*params_list) | |
1950 | break; | |
1951 | } | |
bd0725f3 RS |
1952 | temp_params[param_count++] = "-aux-info"; |
1953 | ||
1954 | /* Leave room for the aux-info file name argument. */ | |
1955 | aux_info_file_name_index = param_count; | |
1956 | temp_params[param_count++] = NULL; | |
1957 | ||
5f8037c4 RS |
1958 | temp_params[param_count++] = "-S"; |
1959 | temp_params[param_count++] = "-o"; | |
1960 | temp_params[param_count++] = "/dev/null"; | |
1961 | ||
bd0725f3 RS |
1962 | /* Leave room for the input file name argument. */ |
1963 | input_file_name_index = param_count; | |
1964 | temp_params[param_count++] = NULL; | |
1965 | /* Terminate the list. */ | |
5f8037c4 RS |
1966 | temp_params[param_count++] = NULL; |
1967 | ||
1968 | /* Make a copy of the compile_params in heap space. */ | |
1969 | ||
34e56753 | 1970 | compile_params |
ff57c94e | 1971 | = (const char **) xmalloc (sizeof (char *) * (param_count+1)); |
5f8037c4 RS |
1972 | memcpy (compile_params, temp_params, sizeof (char *) * param_count); |
1973 | } | |
1974 | ||
1975 | /* Do a recompilation for the express purpose of generating a new aux_info | |
1976 | file to go with a specific base source file. */ | |
1977 | ||
1978 | static int | |
34e56753 RS |
1979 | gen_aux_info_file (base_filename) |
1980 | const char *base_filename; | |
5f8037c4 RS |
1981 | { |
1982 | int child_pid; | |
1983 | ||
bd0725f3 | 1984 | if (!input_file_name_index) |
5f8037c4 RS |
1985 | munge_compile_params (""); |
1986 | ||
bd0725f3 RS |
1987 | /* Store the full source file name in the argument vector. */ |
1988 | compile_params[input_file_name_index] = shortpath (NULL, base_filename); | |
1989 | /* Add .X to source file name to get aux-info file name. */ | |
1990 | compile_params[aux_info_file_name_index] | |
8241a41f RS |
1991 | = savestring2 (compile_params[input_file_name_index], |
1992 | strlen (compile_params[input_file_name_index]), | |
1993 | ".X", | |
1994 | 2); | |
5f8037c4 RS |
1995 | |
1996 | if (!quiet_flag) | |
1997 | fprintf (stderr, "%s: compiling `%s'\n", | |
bd0725f3 | 1998 | pname, compile_params[input_file_name_index]); |
5f8037c4 RS |
1999 | |
2000 | if (child_pid = fork ()) | |
2001 | { | |
2002 | if (child_pid == -1) | |
2003 | { | |
2004 | fprintf (stderr, "%s: error: could not fork process: %s\n", | |
a2b22788 | 2005 | pname, sys_errlist[errno]); |
5f8037c4 RS |
2006 | return 0; |
2007 | } | |
2008 | ||
2009 | #if 0 | |
2010 | /* Print out the command line that the other process is now executing. */ | |
2011 | ||
2012 | if (!quiet_flag) | |
2013 | { | |
2014 | const char **arg; | |
2015 | ||
2016 | fputs ("\t", stderr); | |
2017 | for (arg = compile_params; *arg; arg++) | |
2018 | { | |
2019 | fputs (*arg, stderr); | |
2020 | fputc (' ', stderr); | |
2021 | } | |
2022 | fputc ('\n', stderr); | |
2023 | fflush (stderr); | |
2024 | } | |
2025 | #endif /* 0 */ | |
2026 | ||
2027 | { | |
2028 | int wait_status; | |
2029 | ||
2030 | if (wait (&wait_status) == -1) | |
2031 | { | |
b7004e53 | 2032 | fprintf (stderr, "%s: wait failed: %s\n", |
a2b22788 | 2033 | pname, sys_errlist[errno]); |
5f8037c4 RS |
2034 | return 0; |
2035 | } | |
b7004e53 RS |
2036 | if ((wait_status & 0x7F) != 0) |
2037 | { | |
2038 | fprintf (stderr, "%s: subprocess got fatal signal %d", | |
2039 | pname, (wait_status & 0x7F)); | |
2040 | return 0; | |
2041 | } | |
2042 | if (((wait_status & 0xFF00) >> 8) != 0) | |
d742f26c | 2043 | { |
b7004e53 RS |
2044 | fprintf (stderr, "%s: %s exited with status %d\n", |
2045 | pname, base_filename, ((wait_status & 0xFF00) >> 8)); | |
d742f26c RS |
2046 | return 0; |
2047 | } | |
2048 | return 1; | |
5f8037c4 RS |
2049 | } |
2050 | } | |
2051 | else | |
2052 | { | |
34e56753 | 2053 | if (my_execvp (compile_params[0], (char *const *) compile_params)) |
5f8037c4 | 2054 | { |
d742f26c RS |
2055 | int e = errno, f = fileno (stderr); |
2056 | write (f, pname, strlen (pname)); | |
2057 | write (f, ": ", 2); | |
2058 | write (f, compile_params[0], strlen (compile_params[0])); | |
2059 | write (f, ": ", 2); | |
2060 | write (f, sys_errlist[e], strlen (sys_errlist[e])); | |
2061 | write (f, "\n", 1); | |
2062 | _exit (1); | |
5f8037c4 RS |
2063 | } |
2064 | return 1; /* Never executed. */ | |
2065 | } | |
2066 | } | |
2067 | \f | |
2068 | /* Read in all of the information contained in a single aux_info file. | |
2069 | Save all of the important stuff for later. */ | |
2070 | ||
2071 | static void | |
34e56753 RS |
2072 | process_aux_info_file (base_source_filename, keep_it, is_syscalls) |
2073 | const char *base_source_filename; | |
2074 | int keep_it; | |
2075 | int is_syscalls; | |
5f8037c4 | 2076 | { |
d742f26c RS |
2077 | size_t base_len = strlen (base_source_filename); |
2078 | char * aux_info_filename | |
2079 | = (char *) alloca (base_len + strlen (aux_info_suffix) + 1); | |
5f8037c4 RS |
2080 | char *aux_info_base; |
2081 | char *aux_info_limit; | |
d742f26c | 2082 | char *aux_info_relocated_name; |
5f8037c4 RS |
2083 | const char *aux_info_second_line; |
2084 | time_t aux_info_mtime; | |
2085 | size_t aux_info_size; | |
2086 | ||
a2b22788 | 2087 | /* Construct the aux_info filename from the base source filename. */ |
5f8037c4 | 2088 | |
a2b22788 RS |
2089 | strcpy (aux_info_filename, base_source_filename); |
2090 | strcat (aux_info_filename, aux_info_suffix); | |
5f8037c4 RS |
2091 | |
2092 | /* Check that the aux_info file exists and is readable. If it does not | |
2093 | exist, try to create it (once only). */ | |
2094 | ||
2095 | start_over: ; | |
2096 | ||
2097 | { | |
2098 | int retries = 0; | |
2099 | ||
2100 | retry: | |
34e56753 | 2101 | if (my_access (aux_info_filename, R_OK) == -1) |
5f8037c4 RS |
2102 | { |
2103 | if (errno == ENOENT && retries == 0) | |
2104 | { | |
2105 | if (is_syscalls) | |
2106 | { | |
2107 | fprintf (stderr, "%s: warning: missing SYSCALLS file `%s'\n", | |
a2b22788 | 2108 | pname, aux_info_filename); |
5f8037c4 RS |
2109 | return; |
2110 | } | |
a2b22788 | 2111 | if (!gen_aux_info_file (base_source_filename)) |
d742f26c RS |
2112 | { |
2113 | errors++; | |
2114 | return; | |
2115 | } | |
5f8037c4 RS |
2116 | retries++; |
2117 | goto retry; | |
2118 | } | |
2119 | else | |
2120 | { | |
2121 | fprintf (stderr, "%s: error: can't read aux info file `%s': %s\n", | |
a2b22788 RS |
2122 | pname, shortpath (NULL, aux_info_filename), |
2123 | sys_errlist[errno]); | |
5f8037c4 RS |
2124 | errors++; |
2125 | return; | |
2126 | } | |
2127 | } | |
2128 | } | |
2129 | ||
2130 | { | |
2131 | struct stat stat_buf; | |
2132 | ||
2133 | /* Get some status information about this aux_info file. */ | |
2134 | ||
34e56753 | 2135 | if (my_stat (aux_info_filename, &stat_buf) == -1) |
5f8037c4 RS |
2136 | { |
2137 | fprintf (stderr, "%s: error: can't get status of aux info file `%s': %s\n", | |
a2b22788 RS |
2138 | pname, shortpath (NULL, aux_info_filename), |
2139 | sys_errlist[errno]); | |
5f8037c4 RS |
2140 | errors++; |
2141 | return; | |
2142 | } | |
2143 | ||
2144 | /* Check on whether or not this aux_info file is zero length. If it is, | |
2145 | then just ignore it and return. */ | |
2146 | ||
2147 | if ((aux_info_size = stat_buf.st_size) == 0) | |
2148 | return; | |
2149 | ||
2150 | /* Get the date/time of last modification for this aux_info file and | |
2151 | remember it. We will have to check that any source files that it | |
2152 | contains information about are at least this old or older. */ | |
2153 | ||
2154 | aux_info_mtime = stat_buf.st_mtime; | |
2155 | } | |
2156 | ||
2157 | { | |
2158 | int aux_info_file; | |
2159 | ||
2160 | /* Open the aux_info file. */ | |
2161 | ||
34e56753 | 2162 | if ((aux_info_file = my_open (aux_info_filename, O_RDONLY, 0444 )) == -1) |
5f8037c4 RS |
2163 | { |
2164 | fprintf (stderr, "%s: error: can't open aux info file `%s' for reading: %s\n", | |
a2b22788 RS |
2165 | pname, shortpath (NULL, aux_info_filename), |
2166 | sys_errlist[errno]); | |
5f8037c4 RS |
2167 | return; |
2168 | } | |
2169 | ||
2170 | /* Allocate space to hold the aux_info file in memory. */ | |
2171 | ||
2172 | aux_info_base = xmalloc (aux_info_size + 1); | |
2173 | aux_info_limit = aux_info_base + aux_info_size; | |
2174 | *aux_info_limit = '\0'; | |
2175 | ||
2176 | /* Read the aux_info file into memory. */ | |
2177 | ||
2178 | if (read (aux_info_file, aux_info_base, aux_info_size) != aux_info_size) | |
2179 | { | |
2180 | fprintf (stderr, "%s: error: while reading aux info file `%s': %s\n", | |
a2b22788 RS |
2181 | pname, shortpath (NULL, aux_info_filename), |
2182 | sys_errlist[errno]); | |
5f8037c4 RS |
2183 | free (aux_info_base); |
2184 | close (aux_info_file); | |
2185 | return; | |
2186 | } | |
2187 | ||
2188 | /* Close the aux info file. */ | |
2189 | ||
2190 | if (close (aux_info_file)) | |
2191 | { | |
2192 | fprintf (stderr, "%s: error: while closing aux info file `%s': %s\n", | |
a2b22788 RS |
2193 | pname, shortpath (NULL, aux_info_filename), |
2194 | sys_errlist[errno]); | |
5f8037c4 RS |
2195 | free (aux_info_base); |
2196 | close (aux_info_file); | |
2197 | return; | |
2198 | } | |
2199 | } | |
2200 | ||
2201 | /* Delete the aux_info file (unless requested not to). If the deletion | |
2202 | fails for some reason, don't even worry about it. */ | |
2203 | ||
2204 | if (!keep_it) | |
34e56753 | 2205 | if (my_unlink (aux_info_filename) == -1) |
5f8037c4 | 2206 | fprintf (stderr, "%s: error: can't delete aux info file `%s': %s\n", |
a2b22788 RS |
2207 | pname, shortpath (NULL, aux_info_filename), |
2208 | sys_errlist[errno]); | |
5f8037c4 RS |
2209 | |
2210 | /* Save a pointer into the first line of the aux_info file which | |
a2b22788 | 2211 | contains the filename of the directory from which the compiler |
5f8037c4 RS |
2212 | was invoked when the associated source file was compiled. |
2213 | This information is used later to help create complete | |
a2b22788 | 2214 | filenames out of the (potentially) relative filenames in |
5f8037c4 RS |
2215 | the aux_info file. */ |
2216 | ||
2217 | { | |
2218 | char *p = aux_info_base; | |
2219 | ||
2220 | while (*p != ':') | |
2221 | p++; | |
2222 | p++; | |
2223 | while (*p == ' ') | |
2224 | p++; | |
a2b22788 | 2225 | invocation_filename = p; /* Save a pointer to first byte of path. */ |
5f8037c4 RS |
2226 | while (*p != ' ') |
2227 | p++; | |
2228 | *p++ = '/'; | |
2229 | *p++ = '\0'; | |
2230 | while (*p++ != '\n') | |
2231 | continue; | |
2232 | aux_info_second_line = p; | |
d742f26c RS |
2233 | aux_info_relocated_name = 0; |
2234 | if (invocation_filename[0] != '/') | |
2235 | { | |
2236 | /* INVOCATION_FILENAME is relative; | |
2237 | append it to BASE_SOURCE_FILENAME's dir. */ | |
2238 | char *dir_end; | |
2239 | aux_info_relocated_name = xmalloc (base_len + (p-invocation_filename)); | |
2240 | strcpy (aux_info_relocated_name, base_source_filename); | |
2241 | dir_end = strrchr (aux_info_relocated_name, '/'); | |
2242 | if (dir_end) | |
2243 | dir_end++; | |
2244 | else | |
2245 | dir_end = aux_info_relocated_name; | |
2246 | strcpy (dir_end, invocation_filename); | |
2247 | invocation_filename = aux_info_relocated_name; | |
2248 | } | |
5f8037c4 RS |
2249 | } |
2250 | ||
2251 | ||
2252 | { | |
2253 | const char *aux_info_p; | |
2254 | ||
2255 | /* Do a pre-pass on the lines in the aux_info file, making sure that all | |
2256 | of the source files referenced in there are at least as old as this | |
2257 | aux_info file itself. If not, go back and regenerate the aux_info | |
2258 | file anew. Don't do any of this for the syscalls file. */ | |
2259 | ||
2260 | if (!is_syscalls) | |
2261 | { | |
2262 | current_aux_info_lineno = 2; | |
2263 | ||
2264 | for (aux_info_p = aux_info_second_line; *aux_info_p; ) | |
2265 | { | |
2266 | if (referenced_file_is_newer (aux_info_p, aux_info_mtime)) | |
2267 | { | |
2268 | free (aux_info_base); | |
d742f26c RS |
2269 | xfree (aux_info_relocated_name); |
2270 | if (keep_it && my_unlink (aux_info_filename) == -1) | |
5f8037c4 RS |
2271 | { |
2272 | fprintf (stderr, "%s: error: can't delete file `%s': %s\n", | |
a2b22788 RS |
2273 | pname, shortpath (NULL, aux_info_filename), |
2274 | sys_errlist[errno]); | |
5f8037c4 RS |
2275 | return; |
2276 | } | |
2277 | goto start_over; | |
2278 | } | |
2279 | ||
2280 | /* Skip over the rest of this line to start of next line. */ | |
2281 | ||
2282 | while (*aux_info_p != '\n') | |
2283 | aux_info_p++; | |
2284 | aux_info_p++; | |
2285 | current_aux_info_lineno++; | |
2286 | } | |
2287 | } | |
2288 | ||
2289 | /* Now do the real pass on the aux_info lines. Save their information in | |
2290 | the in-core data base. */ | |
2291 | ||
2292 | current_aux_info_lineno = 2; | |
2293 | ||
2294 | for (aux_info_p = aux_info_second_line; *aux_info_p;) | |
2295 | { | |
2296 | char *unexpanded_line = unexpand_if_needed (aux_info_p); | |
2297 | ||
2298 | if (unexpanded_line) | |
2299 | { | |
2300 | save_def_or_dec (unexpanded_line, is_syscalls); | |
2301 | free (unexpanded_line); | |
2302 | } | |
2303 | else | |
2304 | save_def_or_dec (aux_info_p, is_syscalls); | |
2305 | ||
2306 | /* Skip over the rest of this line and get to start of next line. */ | |
2307 | ||
2308 | while (*aux_info_p != '\n') | |
2309 | aux_info_p++; | |
2310 | aux_info_p++; | |
2311 | current_aux_info_lineno++; | |
2312 | } | |
2313 | } | |
2314 | ||
2315 | free (aux_info_base); | |
d742f26c | 2316 | xfree (aux_info_relocated_name); |
5f8037c4 RS |
2317 | } |
2318 | \f | |
2319 | #ifndef UNPROTOIZE | |
2320 | ||
2321 | /* Check an individual filename for a .c suffix. If the filename has this | |
2322 | suffix, rename the file such that its suffix is changed to .C. This | |
2323 | function implements the -C option. */ | |
2324 | ||
2325 | static void | |
34e56753 RS |
2326 | rename_c_file (hp) |
2327 | const hash_table_entry *hp; | |
5f8037c4 | 2328 | { |
a2b22788 RS |
2329 | const char *filename = hp->symbol; |
2330 | int last_char_index = strlen (filename) - 1; | |
2331 | char *const new_filename = (char *) alloca (strlen (filename) + 1); | |
5f8037c4 RS |
2332 | |
2333 | /* Note that we don't care here if the given file was converted or not. It | |
2334 | is possible that the given file was *not* converted, simply because there | |
2335 | was nothing in it which actually required conversion. Even in this case, | |
2336 | we want to do the renaming. Note that we only rename files with the .c | |
2337 | suffix. */ | |
2338 | ||
a2b22788 | 2339 | if (filename[last_char_index] != 'c' || filename[last_char_index-1] != '.') |
5f8037c4 RS |
2340 | return; |
2341 | ||
a2b22788 RS |
2342 | strcpy (new_filename, filename); |
2343 | new_filename[last_char_index] = 'C'; | |
5f8037c4 | 2344 | |
34e56753 | 2345 | if (my_link (filename, new_filename) == -1) |
5f8037c4 RS |
2346 | { |
2347 | fprintf (stderr, "%s: warning: can't link file `%s' to `%s': %s\n", | |
a2b22788 RS |
2348 | pname, shortpath (NULL, filename), |
2349 | shortpath (NULL, new_filename), sys_errlist[errno]); | |
5f8037c4 RS |
2350 | errors++; |
2351 | return; | |
2352 | } | |
2353 | ||
34e56753 | 2354 | if (my_unlink (filename) == -1) |
5f8037c4 RS |
2355 | { |
2356 | fprintf (stderr, "%s: warning: can't delete file `%s': %s\n", | |
a2b22788 | 2357 | pname, shortpath (NULL, filename), sys_errlist[errno]); |
5f8037c4 RS |
2358 | errors++; |
2359 | return; | |
2360 | } | |
2361 | } | |
2362 | ||
a019653e | 2363 | #endif /* !defined (UNPROTOIZE) */ |
5f8037c4 RS |
2364 | \f |
2365 | /* Take the list of definitions and declarations attached to a particular | |
2366 | file_info node and reverse the order of the list. This should get the | |
2367 | list into an order such that the item with the lowest associated line | |
2368 | number is nearest the head of the list. When these lists are originally | |
2369 | built, they are in the opposite order. We want to traverse them in | |
2370 | normal line number order later (i.e. lowest to highest) so reverse the | |
2371 | order here. */ | |
2372 | ||
2373 | static void | |
34e56753 RS |
2374 | reverse_def_dec_list (hp) |
2375 | const hash_table_entry *hp; | |
5f8037c4 RS |
2376 | { |
2377 | file_info *file_p = hp->fip; | |
2378 | const def_dec_info *prev = NULL; | |
2379 | const def_dec_info *current = file_p->defs_decs; | |
2380 | ||
2381 | if (!( current = file_p->defs_decs)) | |
2382 | return; /* no list to reverse */ | |
2383 | ||
2384 | prev = current; | |
2385 | if (! (current = current->next_in_file)) | |
2386 | return; /* can't reverse a single list element */ | |
2387 | ||
2388 | ((NONCONST def_dec_info *) prev)->next_in_file = NULL; | |
2389 | ||
2390 | while (current) | |
2391 | { | |
2392 | const def_dec_info *next = current->next_in_file; | |
2393 | ||
2394 | ((NONCONST def_dec_info *) current)->next_in_file = prev; | |
2395 | prev = current; | |
2396 | current = next; | |
2397 | } | |
2398 | ||
2399 | file_p->defs_decs = prev; | |
2400 | } | |
2401 | ||
2402 | #ifndef UNPROTOIZE | |
2403 | ||
2404 | /* Find the (only?) extern definition for a particular function name, starting | |
2405 | from the head of the linked list of entries for the given name. If we | |
2406 | cannot find an extern definition for the given function name, issue a | |
2407 | warning and scrounge around for the next best thing, i.e. an extern | |
2408 | function declaration with a prototype attached to it. Note that we only | |
2409 | allow such substitutions for extern declarations and never for static | |
2410 | declarations. That's because the only reason we allow them at all is | |
2411 | to let un-prototyped function declarations for system-supplied library | |
2412 | functions get their prototypes from our own extra SYSCALLS.c.X file which | |
2413 | contains all of the correct prototypes for system functions. */ | |
2414 | ||
2415 | static const def_dec_info * | |
34e56753 RS |
2416 | find_extern_def (head, user) |
2417 | const def_dec_info *head; | |
2418 | const def_dec_info *user; | |
5f8037c4 RS |
2419 | { |
2420 | const def_dec_info *dd_p; | |
2421 | const def_dec_info *extern_def_p = NULL; | |
2422 | int conflict_noted = 0; | |
2423 | ||
2424 | /* Don't act too stupid here. Somebody may try to convert an entire system | |
2425 | in one swell fwoop (rather than one program at a time, as should be done) | |
2426 | and in that case, we may find that there are multiple extern definitions | |
2427 | of a given function name in the entire set of source files that we are | |
2428 | converting. If however one of these definitions resides in exactly the | |
2429 | same source file as the reference we are trying to satisfy then in that | |
2430 | case it would be stupid for us to fail to realize that this one definition | |
2431 | *must* be the precise one we are looking for. | |
2432 | ||
2433 | To make sure that we don't miss an opportunity to make this "same file" | |
2434 | leap of faith, we do a prescan of the list of records relating to the | |
2435 | given function name, and we look (on this first scan) *only* for a | |
2436 | definition of the function which is in the same file as the reference | |
2437 | we are currently trying to satisfy. */ | |
2438 | ||
2439 | for (dd_p = head; dd_p; dd_p = dd_p->next_for_func) | |
2440 | if (dd_p->is_func_def && !dd_p->is_static && dd_p->file == user->file) | |
2441 | return dd_p; | |
2442 | ||
2443 | /* Now, since we have not found a definition in the same file as the | |
2444 | reference, we scan the list again and consider all possibilities from | |
2445 | all files. Here we may get conflicts with the things listed in the | |
2446 | SYSCALLS.c.X file, but if that happens it only means that the source | |
2447 | code being converted contains its own definition of a function which | |
2448 | could have been supplied by libc.a. In such cases, we should avoid | |
2449 | issuing the normal warning, and defer to the definition given in the | |
2450 | user's own code. */ | |
2451 | ||
2452 | for (dd_p = head; dd_p; dd_p = dd_p->next_for_func) | |
2453 | if (dd_p->is_func_def && !dd_p->is_static) | |
2454 | { | |
2455 | if (!extern_def_p) /* Previous definition? */ | |
2456 | extern_def_p = dd_p; /* Remember the first definition found. */ | |
2457 | else | |
2458 | { | |
2459 | /* Ignore definition just found if it came from SYSCALLS.c.X. */ | |
2460 | ||
2461 | if (is_syscalls_file (dd_p->file)) | |
2462 | continue; | |
2463 | ||
2464 | /* Quietly replace the definition previously found with the one | |
2465 | just found if the previous one was from SYSCALLS.c.X. */ | |
2466 | ||
2467 | if (is_syscalls_file (extern_def_p->file)) | |
2468 | { | |
2469 | extern_def_p = dd_p; | |
2470 | continue; | |
2471 | } | |
2472 | ||
2473 | /* If we get here, then there is a conflict between two function | |
2474 | declarations for the same function, both of which came from the | |
2475 | user's own code. */ | |
2476 | ||
2477 | if (!conflict_noted) /* first time we noticed? */ | |
2478 | { | |
2479 | conflict_noted = 1; | |
2480 | fprintf (stderr, "%s: error: conflicting extern definitions of '%s'\n", | |
a2b22788 | 2481 | pname, head->hash_entry->symbol); |
5f8037c4 RS |
2482 | if (!quiet_flag) |
2483 | { | |
2484 | fprintf (stderr, "%s: declarations of '%s' will not be converted\n", | |
a2b22788 | 2485 | pname, head->hash_entry->symbol); |
5f8037c4 | 2486 | fprintf (stderr, "%s: conflict list for '%s' follows:\n", |
a2b22788 | 2487 | pname, head->hash_entry->symbol); |
5f8037c4 | 2488 | fprintf (stderr, "%s: %s(%d): %s\n", |
a2b22788 RS |
2489 | pname, |
2490 | shortpath (NULL, extern_def_p->file->hash_entry->symbol), | |
2491 | extern_def_p->line, extern_def_p->ansi_decl); | |
5f8037c4 RS |
2492 | } |
2493 | } | |
2494 | if (!quiet_flag) | |
2495 | fprintf (stderr, "%s: %s(%d): %s\n", | |
a2b22788 RS |
2496 | pname, |
2497 | shortpath (NULL, dd_p->file->hash_entry->symbol), | |
2498 | dd_p->line, dd_p->ansi_decl); | |
5f8037c4 RS |
2499 | } |
2500 | } | |
2501 | ||
2502 | /* We want to err on the side of caution, so if we found multiple conflicting | |
2503 | definitions for the same function, treat this as being that same as if we | |
2504 | had found no definitions (i.e. return NULL). */ | |
2505 | ||
2506 | if (conflict_noted) | |
2507 | return NULL; | |
2508 | ||
2509 | if (!extern_def_p) | |
2510 | { | |
2511 | /* We have no definitions for this function so do the next best thing. | |
2512 | Search for an extern declaration already in prototype form. */ | |
2513 | ||
2514 | for (dd_p = head; dd_p; dd_p = dd_p->next_for_func) | |
2515 | if (!dd_p->is_func_def && !dd_p->is_static && dd_p->prototyped) | |
2516 | { | |
2517 | extern_def_p = dd_p; /* save a pointer to the definition */ | |
2518 | if (!quiet_flag) | |
2519 | fprintf (stderr, "%s: warning: using formals list from %s(%d) for function `%s'\n", | |
a2b22788 RS |
2520 | pname, |
2521 | shortpath (NULL, dd_p->file->hash_entry->symbol), | |
2522 | dd_p->line, dd_p->hash_entry->symbol); | |
5f8037c4 RS |
2523 | break; |
2524 | } | |
2525 | ||
2526 | /* Gripe about unprototyped function declarations that we found no | |
2527 | corresponding definition (or other source of prototype information) | |
2528 | for. | |
2529 | ||
2530 | Gripe even if the unprototyped declaration we are worried about | |
2531 | exists in a file in one of the "system" include directories. We | |
2532 | can gripe about these because we should have at least found a | |
2533 | corresponding (pseudo) definition in the SYSCALLS.c.X file. If we | |
2534 | didn't, then that means that the SYSCALLS.c.X file is missing some | |
2535 | needed prototypes for this particular system. That is worth telling | |
2536 | the user about! */ | |
2537 | ||
2538 | if (!extern_def_p) | |
2539 | { | |
2540 | const char *file = user->file->hash_entry->symbol; | |
2541 | ||
2542 | if (!quiet_flag) | |
2543 | if (in_system_include_dir (file)) | |
2544 | { | |
2545 | /* Why copy this string into `needed' at all? | |
2546 | Why not just use user->ansi_decl without copying? */ | |
34e56753 | 2547 | char *needed = (char *) alloca (strlen (user->ansi_decl) + 1); |
5f8037c4 RS |
2548 | char *p; |
2549 | ||
2550 | strcpy (needed, user->ansi_decl); | |
2551 | p = (NONCONST char *) substr (needed, user->hash_entry->symbol) | |
2552 | + strlen (user->hash_entry->symbol) + 2; | |
a609bfc6 RS |
2553 | /* Avoid having ??? in the string. */ |
2554 | *p++ = '?'; | |
2555 | *p++ = '?'; | |
2556 | *p++ = '?'; | |
2557 | strcpy (p, ");"); | |
5f8037c4 | 2558 | |
a2b22788 RS |
2559 | fprintf (stderr, "%s: %d: `%s' used but missing from SYSCALLS\n", |
2560 | shortpath (NULL, file), user->line, | |
2561 | needed+7); /* Don't print "extern " */ | |
5f8037c4 | 2562 | } |
8241a41f | 2563 | #if 0 |
5f8037c4 | 2564 | else |
a2b22788 RS |
2565 | fprintf (stderr, "%s: %d: warning: no extern definition for `%s'\n", |
2566 | shortpath (NULL, file), user->line, | |
2567 | user->hash_entry->symbol); | |
8241a41f | 2568 | #endif |
5f8037c4 RS |
2569 | } |
2570 | } | |
2571 | return extern_def_p; | |
2572 | } | |
2573 | \f | |
2574 | /* Find the (only?) static definition for a particular function name in a | |
2575 | given file. Here we get the function-name and the file info indirectly | |
2576 | from the def_dec_info record pointer which is passed in. */ | |
2577 | ||
2578 | static const def_dec_info * | |
34e56753 RS |
2579 | find_static_definition (user) |
2580 | const def_dec_info *user; | |
5f8037c4 RS |
2581 | { |
2582 | const def_dec_info *head = user->hash_entry->ddip; | |
2583 | const def_dec_info *dd_p; | |
2584 | int num_static_defs = 0; | |
2585 | const def_dec_info *static_def_p = NULL; | |
2586 | ||
2587 | for (dd_p = head; dd_p; dd_p = dd_p->next_for_func) | |
2588 | if (dd_p->is_func_def && dd_p->is_static && (dd_p->file == user->file)) | |
2589 | { | |
2590 | static_def_p = dd_p; /* save a pointer to the definition */ | |
2591 | num_static_defs++; | |
2592 | } | |
2593 | if (num_static_defs == 0) | |
2594 | { | |
2595 | if (!quiet_flag) | |
2596 | fprintf (stderr, "%s: warning: no static definition for `%s' in file `%s'\n", | |
a2b22788 RS |
2597 | pname, head->hash_entry->symbol, |
2598 | shortpath (NULL, user->file->hash_entry->symbol)); | |
5f8037c4 RS |
2599 | } |
2600 | else if (num_static_defs > 1) | |
2601 | { | |
2602 | fprintf (stderr, "%s: error: multiple static defs of `%s' in file `%s'\n", | |
a2b22788 RS |
2603 | pname, head->hash_entry->symbol, |
2604 | shortpath (NULL, user->file->hash_entry->symbol)); | |
5f8037c4 RS |
2605 | return NULL; |
2606 | } | |
2607 | return static_def_p; | |
2608 | } | |
2609 | ||
2610 | /* Find good prototype style formal argument lists for all of the function | |
2611 | declarations which didn't have them before now. | |
2612 | ||
2613 | To do this we consider each function name one at a time. For each function | |
2614 | name, we look at the items on the linked list of def_dec_info records for | |
2615 | that particular name. | |
2616 | ||
2617 | Somewhere on this list we should find one (and only one) def_dec_info | |
2618 | record which represents the actual function definition, and this record | |
2619 | should have a nice formal argument list already associated with it. | |
2620 | ||
2621 | Thus, all we have to do is to connect up all of the other def_dec_info | |
2622 | records for this particular function name to the special one which has | |
2623 | the full-blown formals list. | |
2624 | ||
2625 | Of course it is a little more complicated than just that. See below for | |
2626 | more details. */ | |
2627 | ||
2628 | static void | |
34e56753 RS |
2629 | connect_defs_and_decs (hp) |
2630 | const hash_table_entry *hp; | |
5f8037c4 RS |
2631 | { |
2632 | const def_dec_info *dd_p; | |
2633 | const def_dec_info *extern_def_p = NULL; | |
2634 | int first_extern_reference = 1; | |
2635 | ||
2636 | /* Traverse the list of definitions and declarations for this particular | |
2637 | function name. For each item on the list, if it is a function | |
2638 | definition (either old style or new style) then GCC has already been | |
2639 | kind enough to produce a prototype for us, and it is associated with | |
2640 | the item already, so declare the item as its own associated "definition". | |
2641 | ||
2642 | Also, for each item which is only a function declaration, but which | |
2643 | nonetheless has its own prototype already (obviously supplied by the user) | |
2644 | declare the item as it's own definition. | |
2645 | ||
2646 | Note that when/if there are multiple user-supplied prototypes already | |
2647 | present for multiple declarations of any given function, these multiple | |
2648 | prototypes *should* all match exactly with one another and with the | |
2649 | prototype for the actual function definition. We don't check for this | |
2650 | here however, since we assume that the compiler must have already done | |
d45cf215 | 2651 | this consistency checking when it was creating the .X files. */ |
5f8037c4 RS |
2652 | |
2653 | for (dd_p = hp->ddip; dd_p; dd_p = dd_p->next_for_func) | |
2654 | if (dd_p->prototyped) | |
2655 | ((NONCONST def_dec_info *) dd_p)->definition = dd_p; | |
2656 | ||
2657 | /* Traverse the list of definitions and declarations for this particular | |
2658 | function name. For each item on the list, if it is an extern function | |
2659 | declaration and if it has no associated definition yet, go try to find | |
2660 | the matching extern definition for the declaration. | |
2661 | ||
2662 | When looking for the matching function definition, warn the user if we | |
2663 | fail to find one. | |
2664 | ||
2665 | If we find more that one function definition also issue a warning. | |
2666 | ||
2667 | Do the search for the matching definition only once per unique function | |
2668 | name (and only when absolutely needed) so that we can avoid putting out | |
2669 | redundant warning messages, and so that we will only put out warning | |
2670 | messages when there is actually a reference (i.e. a declaration) for | |
2671 | which we need to find a matching definition. */ | |
2672 | ||
2673 | for (dd_p = hp->ddip; dd_p; dd_p = dd_p->next_for_func) | |
2674 | if (!dd_p->is_func_def && !dd_p->is_static && !dd_p->definition) | |
2675 | { | |
2676 | if (first_extern_reference) | |
2677 | { | |
2678 | extern_def_p = find_extern_def (hp->ddip, dd_p); | |
2679 | first_extern_reference = 0; | |
2680 | } | |
2681 | ((NONCONST def_dec_info *) dd_p)->definition = extern_def_p; | |
2682 | } | |
2683 | ||
2684 | /* Traverse the list of definitions and declarations for this particular | |
2685 | function name. For each item on the list, if it is a static function | |
2686 | declaration and if it has no associated definition yet, go try to find | |
2687 | the matching static definition for the declaration within the same file. | |
2688 | ||
2689 | When looking for the matching function definition, warn the user if we | |
2690 | fail to find one in the same file with the declaration, and refuse to | |
2691 | convert this kind of cross-file static function declaration. After all, | |
2692 | this is stupid practice and should be discouraged. | |
2693 | ||
2694 | We don't have to worry about the possibility that there is more than one | |
2695 | matching function definition in the given file because that would have | |
2696 | been flagged as an error by the compiler. | |
2697 | ||
2698 | Do the search for the matching definition only once per unique | |
2699 | function-name/source-file pair (and only when absolutely needed) so that | |
2700 | we can avoid putting out redundant warning messages, and so that we will | |
2701 | only put out warning messages when there is actually a reference (i.e. a | |
2702 | declaration) for which we actually need to find a matching definition. */ | |
2703 | ||
2704 | for (dd_p = hp->ddip; dd_p; dd_p = dd_p->next_for_func) | |
2705 | if (!dd_p->is_func_def && dd_p->is_static && !dd_p->definition) | |
2706 | { | |
2707 | const def_dec_info *dd_p2; | |
2708 | const def_dec_info *static_def; | |
2709 | ||
2710 | /* We have now found a single static declaration for which we need to | |
2711 | find a matching definition. We want to minimize the work (and the | |
2712 | number of warnings), so we will find an appropriate (matching) | |
2713 | static definition for this declaration, and then distribute it | |
2714 | (as the definition for) any and all other static declarations | |
2715 | for this function name which occur within the same file, and which | |
2716 | do not already have definitions. | |
2717 | ||
2718 | Note that a trick is used here to prevent subsequent attempts to | |
a019653e | 2719 | call find_static_definition for a given function-name & file |
5f8037c4 RS |
2720 | if the first such call returns NULL. Essentially, we convert |
2721 | these NULL return values to -1, and put the -1 into the definition | |
2722 | field for each other static declaration from the same file which | |
2723 | does not already have an associated definition. | |
2724 | This makes these other static declarations look like they are | |
2725 | actually defined already when the outer loop here revisits them | |
2726 | later on. Thus, the outer loop will skip over them. Later, we | |
2727 | turn the -1's back to NULL's. */ | |
2728 | ||
2729 | ((NONCONST def_dec_info *) dd_p)->definition = | |
2730 | (static_def = find_static_definition (dd_p)) | |
2731 | ? static_def | |
2732 | : (const def_dec_info *) -1; | |
2733 | ||
2734 | for (dd_p2 = dd_p->next_for_func; dd_p2; dd_p2 = dd_p2->next_for_func) | |
2735 | if (!dd_p2->is_func_def && dd_p2->is_static | |
2736 | && !dd_p2->definition && (dd_p2->file == dd_p->file)) | |
2737 | ((NONCONST def_dec_info *)dd_p2)->definition = dd_p->definition; | |
2738 | } | |
2739 | ||
2740 | /* Convert any dummy (-1) definitions we created in the step above back to | |
2741 | NULL's (as they should be). */ | |
2742 | ||
2743 | for (dd_p = hp->ddip; dd_p; dd_p = dd_p->next_for_func) | |
2744 | if (dd_p->definition == (def_dec_info *) -1) | |
2745 | ((NONCONST def_dec_info *) dd_p)->definition = NULL; | |
2746 | } | |
2747 | ||
a019653e | 2748 | #endif /* !defined (UNPROTOIZE) */ |
5f8037c4 RS |
2749 | |
2750 | /* Give a pointer into the clean text buffer, return a number which is the | |
2751 | original source line number that the given pointer points into. */ | |
2752 | ||
2753 | static int | |
34e56753 RS |
2754 | identify_lineno (clean_p) |
2755 | const char *clean_p; | |
5f8037c4 RS |
2756 | { |
2757 | int line_num = 1; | |
2758 | const char *scan_p; | |
2759 | ||
2760 | for (scan_p = clean_text_base; scan_p <= clean_p; scan_p++) | |
2761 | if (*scan_p == '\n') | |
2762 | line_num++; | |
2763 | return line_num; | |
2764 | } | |
2765 | ||
2766 | /* Issue an error message and give up on doing this particular edit. */ | |
2767 | ||
2768 | static void | |
34e56753 RS |
2769 | declare_source_confusing (clean_p) |
2770 | const char *clean_p; | |
5f8037c4 RS |
2771 | { |
2772 | if (!quiet_flag) | |
2773 | { | |
2774 | if (clean_p == 0) | |
a2b22788 RS |
2775 | fprintf (stderr, "%s: %d: warning: source too confusing\n", |
2776 | shortpath (NULL, convert_filename), last_known_line_number); | |
5f8037c4 | 2777 | else |
a2b22788 RS |
2778 | fprintf (stderr, "%s: %d: warning: source too confusing\n", |
2779 | shortpath (NULL, convert_filename), | |
2780 | identify_lineno (clean_p)); | |
5f8037c4 RS |
2781 | } |
2782 | longjmp (source_confusion_recovery, 1); | |
2783 | } | |
2784 | ||
2785 | /* Check that a condition which is expected to be true in the original source | |
2786 | code is in fact true. If not, issue an error message and give up on | |
2787 | converting this particular source file. */ | |
2788 | ||
34e56753 RS |
2789 | static void |
2790 | check_source (cond, clean_p) | |
2791 | int cond; | |
2792 | const char *clean_p; | |
5f8037c4 RS |
2793 | { |
2794 | if (!cond) | |
2795 | declare_source_confusing (clean_p); | |
2796 | } | |
2797 | ||
2798 | /* If we think of the in-core cleaned text buffer as a memory mapped | |
2799 | file (with the variable last_known_line_start acting as sort of a | |
2800 | file pointer) then we can imagine doing "seeks" on the buffer. The | |
2801 | following routine implements a kind of "seek" operation for the in-core | |
2802 | (cleaned) copy of the source file. When finished, it returns a pointer to | |
2803 | the start of a given (numbered) line in the cleaned text buffer. | |
2804 | ||
2805 | Note that protoize only has to "seek" in the forward direction on the | |
2806 | in-core cleaned text file buffers, and it never needs to back up. | |
2807 | ||
2808 | This routine is made a little bit faster by remembering the line number | |
2809 | (and pointer value) supplied (and returned) from the previous "seek". | |
2810 | This prevents us from always having to start all over back at the top | |
2811 | of the in-core cleaned buffer again. */ | |
2812 | ||
2813 | static const char * | |
34e56753 RS |
2814 | seek_to_line (n) |
2815 | int n; | |
5f8037c4 RS |
2816 | { |
2817 | if (n < last_known_line_number) | |
2818 | abort (); | |
2819 | ||
2820 | while (n > last_known_line_number) | |
2821 | { | |
2822 | while (*last_known_line_start != '\n') | |
2823 | check_source (++last_known_line_start < clean_text_limit, 0); | |
2824 | last_known_line_start++; | |
2825 | last_known_line_number++; | |
2826 | } | |
2827 | return last_known_line_start; | |
2828 | } | |
2829 | ||
2830 | /* Given a pointer to a character in the cleaned text buffer, return a pointer | |
2831 | to the next non-whitepace character which follows it. */ | |
2832 | ||
2833 | static const char * | |
34e56753 RS |
2834 | forward_to_next_token_char (ptr) |
2835 | const char *ptr; | |
5f8037c4 RS |
2836 | { |
2837 | for (++ptr; isspace (*ptr); check_source (++ptr < clean_text_limit, 0)) | |
2838 | continue; | |
2839 | return ptr; | |
2840 | } | |
2841 | ||
2842 | /* Copy a chunk of text of length `len' and starting at `str' to the current | |
2843 | output buffer. Note that all attempts to add stuff to the current output | |
2844 | buffer ultimately go through here. */ | |
2845 | ||
2846 | static void | |
34e56753 RS |
2847 | output_bytes (str, len) |
2848 | const char *str; | |
2849 | size_t len; | |
5f8037c4 RS |
2850 | { |
2851 | if ((repl_write_ptr + 1) + len >= repl_text_limit) | |
2852 | { | |
2853 | size_t new_size = (repl_text_limit - repl_text_base) << 1; | |
2854 | char *new_buf = (char *) xrealloc (repl_text_base, new_size); | |
2855 | ||
2856 | repl_write_ptr = new_buf + (repl_write_ptr - repl_text_base); | |
2857 | repl_text_base = new_buf; | |
2858 | repl_text_limit = new_buf + new_size; | |
2859 | } | |
2860 | memcpy (repl_write_ptr + 1, str, len); | |
2861 | repl_write_ptr += len; | |
2862 | } | |
2863 | ||
2864 | /* Copy all bytes (except the trailing null) of a null terminated string to | |
2865 | the current output buffer. */ | |
2866 | ||
2867 | static void | |
34e56753 RS |
2868 | output_string (str) |
2869 | const char *str; | |
5f8037c4 RS |
2870 | { |
2871 | output_bytes (str, strlen (str)); | |
2872 | } | |
2873 | ||
2874 | /* Copy some characters from the original text buffer to the current output | |
2875 | buffer. | |
2876 | ||
2877 | This routine takes a pointer argument `p' which is assumed to be a pointer | |
2878 | into the cleaned text buffer. The bytes which are copied are the `original' | |
2879 | equivalents for the set of bytes between the last value of `clean_read_ptr' | |
2880 | and the argument value `p'. | |
2881 | ||
2882 | The set of bytes copied however, comes *not* from the cleaned text buffer, | |
2883 | but rather from the direct counterparts of these bytes within the original | |
2884 | text buffer. | |
2885 | ||
2886 | Thus, when this function is called, some bytes from the original text | |
2887 | buffer (which may include original comments and preprocessing directives) | |
2888 | will be copied into the output buffer. | |
2889 | ||
2890 | Note that the request implide when this routine is called includes the | |
2891 | byte pointed to by the argument pointer `p'. */ | |
2892 | ||
2893 | static void | |
34e56753 RS |
2894 | output_up_to (p) |
2895 | const char *p; | |
5f8037c4 RS |
2896 | { |
2897 | size_t copy_length = (size_t) (p - clean_read_ptr); | |
2898 | const char *copy_start = orig_text_base+(clean_read_ptr-clean_text_base)+1; | |
2899 | ||
2900 | if (copy_length == 0) | |
2901 | return; | |
2902 | ||
2903 | output_bytes (copy_start, copy_length); | |
2904 | clean_read_ptr = p; | |
2905 | } | |
2906 | ||
2907 | /* Given a pointer to a def_dec_info record which represents some form of | |
2908 | definition of a function (perhaps a real definition, or in lieu of that | |
2909 | perhaps just a declaration with a full prototype) return true if this | |
2910 | function is one which we should avoid converting. Return false | |
2911 | otherwise. */ | |
2912 | ||
2913 | static int | |
34e56753 RS |
2914 | other_variable_style_function (ansi_header) |
2915 | const char *ansi_header; | |
5f8037c4 RS |
2916 | { |
2917 | #ifdef UNPROTOIZE | |
2918 | ||
2919 | /* See if we have a stdarg function, or a function which has stdarg style | |
2920 | parameters or a stdarg style return type. */ | |
2921 | ||
2922 | return (int) substr (ansi_header, "..."); | |
2923 | ||
a019653e | 2924 | #else /* !defined (UNPROTOIZE) */ |
5f8037c4 RS |
2925 | |
2926 | /* See if we have a varargs function, or a function which has varargs style | |
2927 | parameters or a varargs style return type. */ | |
2928 | ||
2929 | const char *p; | |
2930 | int len = strlen (varargs_style_indicator); | |
2931 | ||
2932 | for (p = ansi_header; p; ) | |
2933 | { | |
2934 | const char *candidate; | |
2935 | ||
2936 | if ((candidate = substr (p, varargs_style_indicator)) == 0) | |
2937 | return 0; | |
2938 | else | |
2939 | if (!is_id_char (candidate[-1]) && !is_id_char (candidate[len])) | |
2940 | return 1; | |
2941 | else | |
2942 | p = candidate + 1; | |
2943 | } | |
2944 | return 0; | |
a019653e | 2945 | #endif /* !defined (UNPROTOIZE) */ |
5f8037c4 RS |
2946 | } |
2947 | ||
2948 | /* Do the editing operation specifically for a function "declaration". Note | |
2949 | that editing for function "definitions" are handled in a separate routine | |
2950 | below. */ | |
2951 | ||
2952 | static void | |
34e56753 RS |
2953 | edit_fn_declaration (def_dec_p, clean_text_p) |
2954 | const def_dec_info *def_dec_p; | |
8241a41f | 2955 | const char *volatile clean_text_p; |
5f8037c4 RS |
2956 | { |
2957 | const char *start_formals; | |
2958 | const char *end_formals; | |
2959 | const char *function_to_edit = def_dec_p->hash_entry->symbol; | |
2960 | size_t func_name_len = strlen (function_to_edit); | |
2961 | const char *end_of_fn_name; | |
2962 | ||
2963 | #ifndef UNPROTOIZE | |
2964 | ||
2965 | const f_list_chain_item *this_f_list_chain_item; | |
2966 | const def_dec_info *definition = def_dec_p->definition; | |
2967 | ||
2968 | /* If we are protoizing, and if we found no corresponding definition for | |
2969 | this particular function declaration, then just leave this declaration | |
2970 | exactly as it is. */ | |
2971 | ||
2972 | if (!definition) | |
2973 | return; | |
2974 | ||
2975 | /* If we are protoizing, and if the corresponding definition that we found | |
2976 | for this particular function declaration defined an old style varargs | |
2977 | function, then we want to issue a warning and just leave this function | |
2978 | declaration unconverted. */ | |
2979 | ||
2980 | if (other_variable_style_function (definition->ansi_decl)) | |
2981 | { | |
2982 | if (!quiet_flag) | |
a2b22788 RS |
2983 | fprintf (stderr, "%s: %d: warning: varargs function declaration not converted\n", |
2984 | shortpath (NULL, def_dec_p->file->hash_entry->symbol), | |
2985 | def_dec_p->line); | |
5f8037c4 RS |
2986 | return; |
2987 | } | |
2988 | ||
a019653e | 2989 | #endif /* !defined (UNPROTOIZE) */ |
5f8037c4 RS |
2990 | |
2991 | /* Setup here to recover from confusing source code detected during this | |
2992 | particular "edit". */ | |
2993 | ||
2994 | save_pointers (); | |
2995 | if (setjmp (source_confusion_recovery)) | |
2996 | { | |
2997 | restore_pointers (); | |
2998 | fprintf (stderr, "%s: declaration of function `%s' not converted\n", | |
a2b22788 | 2999 | pname, function_to_edit); |
5f8037c4 RS |
3000 | return; |
3001 | } | |
3002 | ||
3003 | /* We are editing a function declaration. The line number we did a seek to | |
3004 | contains the comma or semicolon which follows the declaration. Our job | |
3005 | now is to scan backwards looking for the function name. This name *must* | |
3006 | be followed by open paren (ignoring whitespace, of course). We need to | |
3007 | replace everything between that open paren and the corresponding closing | |
3008 | paren. If we are protoizing, we need to insert the prototype-style | |
3009 | formals lists. If we are unprotoizing, we need to just delete everything | |
3010 | between the pairs of opening and closing parens. */ | |
3011 | ||
3012 | /* First move up to the end of the line. */ | |
3013 | ||
3014 | while (*clean_text_p != '\n') | |
3015 | check_source (++clean_text_p < clean_text_limit, 0); | |
3016 | clean_text_p--; /* Point to just before the newline character. */ | |
3017 | ||
3018 | /* Now we can scan backwards for the function name. */ | |
3019 | ||
3020 | do | |
3021 | { | |
3022 | for (;;) | |
3023 | { | |
3024 | /* Scan leftwards until we find some character which can be | |
3025 | part of an identifier. */ | |
3026 | ||
3027 | while (!is_id_char (*clean_text_p)) | |
3028 | check_source (--clean_text_p > clean_read_ptr, 0); | |
3029 | ||
3030 | /* Scan backwards until we find a char that cannot be part of an | |
3031 | identifier. */ | |
3032 | ||
3033 | while (is_id_char (*clean_text_p)) | |
3034 | check_source (--clean_text_p > clean_read_ptr, 0); | |
3035 | ||
3036 | /* Having found an "id break", see if the following id is the one | |
3037 | that we are looking for. If so, then exit from this loop. */ | |
3038 | ||
3039 | if (!strncmp (clean_text_p+1, function_to_edit, func_name_len)) | |
3040 | { | |
3041 | char ch = *(clean_text_p + 1 + func_name_len); | |
3042 | ||
3043 | /* Must also check to see that the name in the source text | |
3044 | ends where it should (in order to prevent bogus matches | |
3045 | on similar but longer identifiers. */ | |
3046 | ||
3047 | if (! is_id_char (ch)) | |
3048 | break; /* exit from loop */ | |
3049 | } | |
3050 | } | |
3051 | ||
3052 | /* We have now found the first perfect match for the function name in | |
3053 | our backward search. This may or may not be the actual function | |
3054 | name at the start of the actual function declaration (i.e. we could | |
3055 | have easily been mislead). We will try to avoid getting fooled too | |
3056 | often by looking forward for the open paren which should follow the | |
3057 | identifier we just found. We ignore whitespace while hunting. If | |
3058 | the next non-whitespace byte we see is *not* an open left paren, | |
3059 | then we must assume that we have been fooled and we start over | |
6dc42e49 | 3060 | again accordingly. Note that there is no guarantee, that even if |
5f8037c4 RS |
3061 | we do see the open paren, that we are in the right place. |
3062 | Programmers do the strangest things sometimes! */ | |
3063 | ||
3064 | end_of_fn_name = clean_text_p + strlen (def_dec_p->hash_entry->symbol); | |
3065 | start_formals = forward_to_next_token_char (end_of_fn_name); | |
3066 | } | |
3067 | while (*start_formals != '('); | |
3068 | ||
3069 | /* start_of_formals now points to the opening left paren which immediately | |
3070 | follows the name of the function. */ | |
3071 | ||
3072 | /* Note that there may be several formals lists which need to be modified | |
3073 | due to the possibility that the return type of this function is a | |
3074 | pointer-to-function type. If there are several formals lists, we | |
3075 | convert them in left-to-right order here. */ | |
3076 | ||
3077 | #ifndef UNPROTOIZE | |
3078 | this_f_list_chain_item = definition->f_list_chain; | |
a019653e | 3079 | #endif /* !defined (UNPROTOIZE) */ |
5f8037c4 RS |
3080 | |
3081 | for (;;) | |
3082 | { | |
3083 | { | |
3084 | int depth; | |
3085 | ||
3086 | end_formals = start_formals + 1; | |
3087 | depth = 1; | |
3088 | for (; depth; check_source (++end_formals < clean_text_limit, 0)) | |
3089 | { | |
3090 | switch (*end_formals) | |
3091 | { | |
3092 | case '(': | |
3093 | depth++; | |
3094 | break; | |
3095 | case ')': | |
3096 | depth--; | |
3097 | break; | |
3098 | } | |
3099 | } | |
3100 | end_formals--; | |
3101 | } | |
3102 | ||
3103 | /* end_formals now points to the closing right paren of the formals | |
3104 | list whose left paren is pointed to by start_formals. */ | |
3105 | ||
3106 | /* Now, if we are protoizing, we insert the new ANSI-style formals list | |
3107 | attached to the associated definition of this function. If however | |
3108 | we are unprotoizing, then we simply delete any formals list which | |
3109 | may be present. */ | |
3110 | ||
3111 | output_up_to (start_formals); | |
3112 | #ifndef UNPROTOIZE | |
3113 | if (this_f_list_chain_item) | |
3114 | { | |
3115 | output_string (this_f_list_chain_item->formals_list); | |
3116 | this_f_list_chain_item = this_f_list_chain_item->chain_next; | |
3117 | } | |
3118 | else | |
3119 | { | |
3120 | if (!quiet_flag) | |
3121 | fprintf (stderr, "%s: warning: too many parameter lists in declaration of `%s'\n", | |
a2b22788 | 3122 | pname, def_dec_p->hash_entry->symbol); |
5f8037c4 RS |
3123 | check_source (0, end_formals); /* leave the declaration intact */ |
3124 | } | |
a019653e | 3125 | #endif /* !defined (UNPROTOIZE) */ |
5f8037c4 RS |
3126 | clean_read_ptr = end_formals - 1; |
3127 | ||
3128 | /* Now see if it looks like there may be another formals list associated | |
3129 | with the function declaration that we are converting (following the | |
3130 | formals list that we just converted. */ | |
3131 | ||
3132 | { | |
3133 | const char *another_r_paren = forward_to_next_token_char (end_formals); | |
3134 | ||
3135 | if ((*another_r_paren != ')') | |
3136 | || (*(start_formals = forward_to_next_token_char (another_r_paren)) != '(')) | |
3137 | { | |
3138 | #ifndef UNPROTOIZE | |
3139 | if (this_f_list_chain_item) | |
3140 | { | |
3141 | if (!quiet_flag) | |
3142 | fprintf (stderr, "\n%s: warning: too few parameter lists in declaration of `%s'\n", | |
a2b22788 | 3143 | pname, def_dec_p->hash_entry->symbol); |
5f8037c4 RS |
3144 | check_source (0, start_formals); /* leave the decl intact */ |
3145 | } | |
a019653e | 3146 | #endif /* !defined (UNPROTOIZE) */ |
5f8037c4 RS |
3147 | break; |
3148 | ||
3149 | } | |
3150 | } | |
3151 | ||
3152 | /* There does appear to be yet another formals list, so loop around | |
3153 | again, and convert it also. */ | |
3154 | } | |
3155 | } | |
3156 | ||
3157 | /* Edit a whole group of formals lists, starting with the rightmost one | |
3158 | from some set of formals lists. This routine is called once (from the | |
3159 | outside) for each function declaration which is converted. It is | |
3160 | recursive however, and it calls itself once for each remaining formal | |
3161 | list that lies to the left of the one it was originally called to work | |
3162 | on. Thus, a whole set gets done in right-to-left order. | |
3163 | ||
3164 | This routine returns non-zero if it thinks that it should not be trying | |
3165 | to convert this particular function definition (because the name of the | |
3166 | function doesn't match the one expected). */ | |
3167 | ||
3168 | static int | |
34e56753 RS |
3169 | edit_formals_lists (end_formals, f_list_count, def_dec_p) |
3170 | const char *end_formals; | |
3171 | unsigned int f_list_count; | |
3172 | const def_dec_info *def_dec_p; | |
5f8037c4 RS |
3173 | { |
3174 | const char *start_formals; | |
3175 | int depth; | |
3176 | ||
3177 | start_formals = end_formals - 1; | |
3178 | depth = 1; | |
3179 | for (; depth; check_source (--start_formals > clean_read_ptr, 0)) | |
3180 | { | |
3181 | switch (*start_formals) | |
3182 | { | |
3183 | case '(': | |
3184 | depth--; | |
3185 | break; | |
3186 | case ')': | |
3187 | depth++; | |
3188 | break; | |
3189 | } | |
3190 | } | |
3191 | start_formals++; | |
3192 | ||
3193 | /* start_formals now points to the opening left paren of the formals list. */ | |
3194 | ||
3195 | f_list_count--; | |
3196 | ||
3197 | if (f_list_count) | |
3198 | { | |
3199 | const char *next_end; | |
3200 | ||
3201 | /* There should be more formal lists to the left of here. */ | |
3202 | ||
3203 | next_end = start_formals - 1; | |
3204 | check_source (next_end > clean_read_ptr, 0); | |
3205 | while (isspace (*next_end)) | |
3206 | check_source (--next_end > clean_read_ptr, 0); | |
3207 | check_source (*next_end == ')', next_end); | |
3208 | check_source (--next_end > clean_read_ptr, 0); | |
3209 | check_source (*next_end == ')', next_end); | |
3210 | if (edit_formals_lists (next_end, f_list_count, def_dec_p)) | |
3211 | return 1; | |
3212 | } | |
3213 | ||
3214 | /* Check that the function name in the header we are working on is the same | |
3215 | as the one we would expect to find. If not, issue a warning and return | |
3216 | non-zero. */ | |
3217 | ||
3218 | if (f_list_count == 0) | |
3219 | { | |
3220 | const char *expected = def_dec_p->hash_entry->symbol; | |
3221 | const char *func_name_start; | |
3222 | const char *func_name_limit; | |
3223 | size_t func_name_len; | |
3224 | ||
3225 | for (func_name_limit = start_formals-1; isspace (*func_name_limit); ) | |
3226 | check_source (--func_name_limit > clean_read_ptr, 0); | |
3227 | ||
3228 | for (func_name_start = func_name_limit++; | |
3229 | is_id_char (*func_name_start); | |
3230 | func_name_start--) | |
3231 | check_source (func_name_start > clean_read_ptr, 0); | |
3232 | func_name_start++; | |
3233 | func_name_len = func_name_limit - func_name_start; | |
3234 | if (func_name_len == 0) | |
3235 | check_source (0, func_name_start); | |
3236 | if (func_name_len != strlen (expected) | |
a2b22788 | 3237 | || strncmp (func_name_start, expected, func_name_len)) |
5f8037c4 | 3238 | { |
a2b22788 RS |
3239 | fprintf (stderr, "%s: %d: warning: found `%s' but expected `%s'\n", |
3240 | shortpath (NULL, def_dec_p->file->hash_entry->symbol), | |
3241 | identify_lineno (func_name_start), | |
3242 | dupnstr (func_name_start, func_name_len), | |
3243 | expected); | |
5f8037c4 RS |
3244 | return 1; |
3245 | } | |
3246 | } | |
3247 | ||
3248 | output_up_to (start_formals); | |
3249 | ||
3250 | #ifdef UNPROTOIZE | |
3251 | if (f_list_count == 0) | |
3252 | output_string (def_dec_p->formal_names); | |
a019653e | 3253 | #else /* !defined (UNPROTOIZE) */ |
5f8037c4 RS |
3254 | { |
3255 | unsigned f_list_depth; | |
3256 | const f_list_chain_item *flci_p = def_dec_p->f_list_chain; | |
3257 | ||
3258 | /* At this point, the current value of f_list count says how many | |
3259 | links we have to follow through the f_list_chain to get to the | |
3260 | particular formals list that we need to output next. */ | |
3261 | ||
3262 | for (f_list_depth = 0; f_list_depth < f_list_count; f_list_depth++) | |
3263 | flci_p = flci_p->chain_next; | |
3264 | output_string (flci_p->formals_list); | |
3265 | } | |
a019653e | 3266 | #endif /* !defined (UNPROTOIZE) */ |
5f8037c4 RS |
3267 | |
3268 | clean_read_ptr = end_formals - 1; | |
3269 | return 0; | |
3270 | } | |
3271 | ||
3272 | /* Given a pointer to a byte in the clean text buffer which points to the | |
3273 | beginning of a line that contains a "follower" token for a function | |
3274 | definition header, do whatever is necessary to find the right closing | |
3275 | paren for the rightmost formals list of the function definition header. | |
3276 | */ | |
3277 | ||
3278 | static const char * | |
34e56753 RS |
3279 | find_rightmost_formals_list (clean_text_p) |
3280 | const char *clean_text_p; | |
5f8037c4 RS |
3281 | { |
3282 | const char *end_formals; | |
3283 | ||
3284 | /* We are editing a function definition. The line number we did a seek | |
3285 | to contains the first token which immediately follows the entire set of | |
3286 | formals lists which are part of this particular function definition | |
3287 | header. | |
3288 | ||
3289 | Our job now is to scan leftwards in the clean text looking for the | |
3290 | right-paren which is at the end of the function header's rightmost | |
3291 | formals list. | |
3292 | ||
3293 | If we ignore whitespace, this right paren should be the first one we | |
3294 | see which is (ignoring whitespace) immediately followed either by the | |
3295 | open curly-brace beginning the function body or by an alphabetic | |
3296 | character (in the case where the function definition is in old (K&R) | |
3297 | style and there are some declarations of formal parameters). */ | |
3298 | ||
3299 | /* It is possible that the right paren we are looking for is on the | |
3300 | current line (together with its following token). Just in case that | |
3301 | might be true, we start out here by skipping down to the right end of | |
3302 | the current line before starting our scan. */ | |
3303 | ||
3304 | for (end_formals = clean_text_p; *end_formals != '\n'; end_formals++) | |
3305 | continue; | |
3306 | end_formals--; | |
3307 | ||
34e56753 RS |
3308 | #ifdef UNPROTOIZE |
3309 | ||
5f8037c4 RS |
3310 | /* Now scan backwards while looking for the right end of the rightmost |
3311 | formals list associated with this function definition. */ | |
3312 | ||
34e56753 RS |
3313 | { |
3314 | char ch; | |
3315 | const char *l_brace_p; | |
3316 | ||
3317 | /* Look leftward and try to find a right-paren. */ | |
3318 | ||
3319 | while (*end_formals != ')') | |
3320 | { | |
3321 | if (isspace (*end_formals)) | |
3322 | while (isspace (*end_formals)) | |
3323 | check_source (--end_formals > clean_read_ptr, 0); | |
3324 | else | |
3325 | check_source (--end_formals > clean_read_ptr, 0); | |
3326 | } | |
3327 | ||
3328 | ch = *(l_brace_p = forward_to_next_token_char (end_formals)); | |
3329 | /* Since we are unprotoizing an ANSI-style (prototyped) function | |
3330 | definition, there had better not be anything (except whitespace) | |
3331 | between the end of the ANSI formals list and the beginning of the | |
3332 | function body (i.e. the '{'). */ | |
3333 | ||
3334 | check_source (ch == '{', l_brace_p); | |
3335 | } | |
3336 | ||
a019653e | 3337 | #else /* !defined (UNPROTOIZE) */ |
34e56753 RS |
3338 | |
3339 | /* Now scan backwards while looking for the right end of the rightmost | |
3340 | formals list associated with this function definition. */ | |
3341 | ||
3342 | while (1) | |
5f8037c4 RS |
3343 | { |
3344 | char ch; | |
3345 | const char *l_brace_p; | |
3346 | ||
3347 | /* Look leftward and try to find a right-paren. */ | |
3348 | ||
3349 | while (*end_formals != ')') | |
3350 | { | |
3351 | if (isspace (*end_formals)) | |
3352 | while (isspace (*end_formals)) | |
3353 | check_source (--end_formals > clean_read_ptr, 0); | |
3354 | else | |
3355 | check_source (--end_formals > clean_read_ptr, 0); | |
3356 | } | |
3357 | ||
3358 | ch = *(l_brace_p = forward_to_next_token_char (end_formals)); | |
3359 | ||
5f8037c4 RS |
3360 | /* Since it is possible that we found a right paren before the starting |
3361 | '{' of the body which IS NOT the one at the end of the real K&R | |
3362 | formals list (say for instance, we found one embedded inside one of | |
3363 | the old K&R formal parameter declarations) we have to check to be | |
3364 | sure that this is in fact the right paren that we were looking for. | |
3365 | ||
3366 | The one we were looking for *must* be followed by either a '{' or | |
3367 | by an alphabetic character, while others *cannot* legally be followed | |
3368 | by such characters. */ | |
3369 | ||
3370 | if ((ch == '{') || isalpha (ch)) | |
3371 | break; | |
3372 | ||
3373 | /* At this point, we have found a right paren, but we know that it is | |
3374 | not the one we were looking for, so backup one character and keep | |
3375 | looking. */ | |
3376 | ||
3377 | check_source (--end_formals > clean_read_ptr, 0); | |
34e56753 | 3378 | } |
5f8037c4 | 3379 | |
a019653e | 3380 | #endif /* !defined (UNPROTOIZE) */ |
5f8037c4 | 3381 | |
5f8037c4 RS |
3382 | return end_formals; |
3383 | } | |
3384 | ||
3385 | #ifndef UNPROTOIZE | |
3386 | ||
3387 | /* Insert into the output file a totally new declaration for a function | |
3388 | which (up until now) was being called from within the current block | |
3389 | without having been declared at any point such that the declaration | |
3390 | was visible (i.e. in scope) at the point of the call. | |
3391 | ||
3392 | We need to add in explicit declarations for all such function calls | |
3393 | in order to get the full benefit of prototype-based function call | |
3394 | parameter type checking. */ | |
3395 | ||
3396 | static void | |
34e56753 RS |
3397 | add_local_decl (def_dec_p, clean_text_p) |
3398 | const def_dec_info *def_dec_p; | |
3399 | const char *clean_text_p; | |
5f8037c4 RS |
3400 | { |
3401 | const char *start_of_block; | |
3402 | const char *function_to_edit = def_dec_p->hash_entry->symbol; | |
3403 | ||
3404 | /* Don't insert new local explicit declarations unless explicitly requested | |
3405 | to do so. */ | |
3406 | ||
3407 | if (!local_flag) | |
3408 | return; | |
3409 | ||
3410 | /* Setup here to recover from confusing source code detected during this | |
3411 | particular "edit". */ | |
3412 | ||
3413 | save_pointers (); | |
3414 | if (setjmp (source_confusion_recovery)) | |
3415 | { | |
3416 | restore_pointers (); | |
3417 | fprintf (stderr, "%s: local declaration for function `%s' not inserted\n", | |
a2b22788 | 3418 | pname, function_to_edit); |
5f8037c4 RS |
3419 | return; |
3420 | } | |
3421 | ||
3422 | /* We have already done a seek to the start of the line which should | |
3423 | contain *the* open curly brace which begins the block in which we need | |
3424 | to insert an explicit function declaration (to replace the implicit one). | |
3425 | ||
3426 | Now we scan that line, starting from the left, until we find the | |
3427 | open curly brace we are looking for. Note that there may actually be | |
3428 | multiple open curly braces on the given line, but we will be happy | |
3429 | with the leftmost one no matter what. */ | |
3430 | ||
3431 | start_of_block = clean_text_p; | |
3432 | while (*start_of_block != '{' && *start_of_block != '\n') | |
3433 | check_source (++start_of_block < clean_text_limit, 0); | |
3434 | ||
3435 | /* Note that the line from the original source could possibly | |
3436 | contain *no* open curly braces! This happens if the line contains | |
3437 | a macro call which expands into a chunk of text which includes a | |
3438 | block (and that block's associated open and close curly braces). | |
3439 | In cases like this, we give up, issue a warning, and do nothing. */ | |
3440 | ||
3441 | if (*start_of_block != '{') | |
3442 | { | |
3443 | if (!quiet_flag) | |
3444 | fprintf (stderr, | |
a2b22788 RS |
3445 | "\n%s: %d: warning: can't add declaration of `%s' into macro call\n", |
3446 | def_dec_p->file->hash_entry->symbol, def_dec_p->line, | |
3447 | def_dec_p->hash_entry->symbol); | |
5f8037c4 RS |
3448 | return; |
3449 | } | |
3450 | ||
3451 | /* Figure out what a nice (pretty) indentation would be for the new | |
3452 | declaration we are adding. In order to do this, we must scan forward | |
3453 | from the '{' until we find the first line which starts with some | |
3454 | non-whitespace characters (i.e. real "token" material). */ | |
3455 | ||
3456 | { | |
3457 | const char *ep = forward_to_next_token_char (start_of_block) - 1; | |
3458 | const char *sp; | |
3459 | ||
3460 | /* Now we have ep pointing at the rightmost byte of some existing indent | |
3461 | stuff. At least that is the hope. | |
3462 | ||
3463 | We can now just scan backwards and find the left end of the existing | |
3464 | indentation string, and then copy it to the output buffer. */ | |
3465 | ||
3466 | for (sp = ep; isspace (*sp) && *sp != '\n'; sp--) | |
3467 | continue; | |
3468 | ||
3469 | /* Now write out the open { which began this block, and any following | |
3470 | trash up to and including the last byte of the existing indent that | |
3471 | we just found. */ | |
3472 | ||
3473 | output_up_to (ep); | |
3474 | ||
3475 | /* Now we go ahead and insert the new declaration at this point. | |
3476 | ||
3477 | If the definition of the given function is in the same file that we | |
3478 | are currently editing, and if its full ANSI declaration normally | |
3479 | would start with the keyword `extern', suppress the `extern'. */ | |
3480 | ||
3481 | { | |
3482 | const char *decl = def_dec_p->definition->ansi_decl; | |
3483 | ||
3484 | if ((*decl == 'e') && (def_dec_p->file == def_dec_p->definition->file)) | |
3485 | decl += 7; | |
3486 | output_string (decl); | |
3487 | } | |
3488 | ||
d45cf215 | 3489 | /* Finally, write out a new indent string, just like the preceding one |
5f8037c4 RS |
3490 | that we found. This will typically include a newline as the first |
3491 | character of the indent string. */ | |
3492 | ||
3493 | output_bytes (sp, (size_t) (ep - sp) + 1); | |
3494 | } | |
3495 | } | |
3496 | ||
3497 | /* Given a pointer to a file_info record, and a pointer to the beginning | |
3498 | of a line (in the clean text buffer) which is assumed to contain the | |
3499 | first "follower" token for the first function definition header in the | |
3500 | given file, find a good place to insert some new global function | |
3501 | declarations (which will replace scattered and imprecise implicit ones) | |
3502 | and then insert the new explicit declaration at that point in the file. */ | |
3503 | ||
3504 | static void | |
34e56753 RS |
3505 | add_global_decls (file_p, clean_text_p) |
3506 | const file_info *file_p; | |
3507 | const char *clean_text_p; | |
5f8037c4 RS |
3508 | { |
3509 | const def_dec_info *dd_p; | |
3510 | const char *scan_p; | |
3511 | ||
3512 | /* Setup here to recover from confusing source code detected during this | |
3513 | particular "edit". */ | |
3514 | ||
3515 | save_pointers (); | |
3516 | if (setjmp (source_confusion_recovery)) | |
3517 | { | |
3518 | restore_pointers (); | |
3519 | fprintf (stderr, "%s: global declarations for file `%s' not inserted\n", | |
a2b22788 | 3520 | pname, shortpath (NULL, file_p->hash_entry->symbol)); |
5f8037c4 RS |
3521 | return; |
3522 | } | |
3523 | ||
3524 | /* Start by finding a good location for adding the new explicit function | |
3525 | declarations. To do this, we scan backwards, ignoring whitespace | |
3526 | and comments and other junk until we find either a semicolon, or until | |
3527 | we hit the beginning of the file. */ | |
3528 | ||
3529 | scan_p = find_rightmost_formals_list (clean_text_p); | |
3530 | for (;; --scan_p) | |
3531 | { | |
3532 | if (scan_p < clean_text_base) | |
3533 | break; | |
3534 | check_source (scan_p > clean_read_ptr, 0); | |
3535 | if (*scan_p == ';') | |
3536 | break; | |
3537 | } | |
3538 | ||
3539 | /* scan_p now points either to a semicolon, or to just before the start | |
3540 | of the whole file. */ | |
3541 | ||
3542 | /* Now scan forward for the first non-whitespace character. In theory, | |
3543 | this should be the first character of the following function definition | |
3544 | header. We will put in the added declarations just prior to that. */ | |
3545 | ||
3546 | scan_p++; | |
3547 | while (isspace (*scan_p)) | |
3548 | scan_p++; | |
3549 | scan_p--; | |
3550 | ||
3551 | output_up_to (scan_p); | |
3552 | ||
3553 | /* Now write out full prototypes for all of the things that had been | |
3554 | implicitly declared in this file (but only those for which we were | |
3555 | actually able to find unique matching definitions). Avoid duplicates | |
3556 | by marking things that we write out as we go. */ | |
3557 | ||
3558 | { | |
3559 | int some_decls_added = 0; | |
3560 | ||
3561 | for (dd_p = file_p->defs_decs; dd_p; dd_p = dd_p->next_in_file) | |
3562 | if (dd_p->is_implicit && dd_p->definition && !dd_p->definition->written) | |
3563 | { | |
3564 | const char *decl = dd_p->definition->ansi_decl; | |
3565 | ||
3566 | /* If the function for which we are inserting a declaration is | |
3567 | actually defined later in the same file, then suppress the | |
3568 | leading `extern' keyword (if there is one). */ | |
3569 | ||
3570 | if (*decl == 'e' && (dd_p->file == dd_p->definition->file)) | |
3571 | decl += 7; | |
3572 | ||
3573 | output_string ("\n"); | |
3574 | output_string (decl); | |
3575 | some_decls_added = 1; | |
3576 | ((NONCONST def_dec_info *) dd_p->definition)->written = 1; | |
3577 | } | |
3578 | if (some_decls_added) | |
3579 | output_string ("\n\n"); | |
3580 | } | |
3581 | ||
3582 | /* Unmark all of the definitions that we just marked. */ | |
3583 | ||
3584 | for (dd_p = file_p->defs_decs; dd_p; dd_p = dd_p->next_in_file) | |
3585 | if (dd_p->definition) | |
3586 | ((NONCONST def_dec_info *) dd_p->definition)->written = 0; | |
3587 | } | |
3588 | ||
a019653e | 3589 | #endif /* !defined (UNPROTOIZE) */ |
5f8037c4 RS |
3590 | |
3591 | /* Do the editing operation specifically for a function "definition". Note | |
3592 | that editing operations for function "declarations" are handled by a | |
3593 | separate routine above. */ | |
3594 | ||
3595 | static void | |
34e56753 RS |
3596 | edit_fn_definition (def_dec_p, clean_text_p) |
3597 | const def_dec_info *def_dec_p; | |
3598 | const char *clean_text_p; | |
5f8037c4 RS |
3599 | { |
3600 | const char *end_formals; | |
3601 | const char *function_to_edit = def_dec_p->hash_entry->symbol; | |
3602 | ||
3603 | /* Setup here to recover from confusing source code detected during this | |
3604 | particular "edit". */ | |
3605 | ||
3606 | save_pointers (); | |
3607 | if (setjmp (source_confusion_recovery)) | |
3608 | { | |
3609 | restore_pointers (); | |
3610 | fprintf (stderr, "%s: definition of function `%s' not converted\n", | |
a2b22788 | 3611 | pname, function_to_edit); |
5f8037c4 RS |
3612 | return; |
3613 | } | |
3614 | ||
3615 | end_formals = find_rightmost_formals_list (clean_text_p); | |
3616 | ||
3617 | /* end_of_formals now points to the closing right paren of the rightmost | |
3618 | formals list which is actually part of the `header' of the function | |
3619 | definition that we are converting. */ | |
3620 | ||
3621 | /* If the header of this function definition looks like it declares a | |
3622 | function with a variable number of arguments, and if the way it does | |
3623 | that is different from that way we would like it (i.e. varargs vs. | |
3624 | stdarg) then issue a warning and leave the header unconverted. */ | |
3625 | ||
3626 | if (other_variable_style_function (def_dec_p->ansi_decl)) | |
3627 | { | |
3628 | if (!quiet_flag) | |
a2b22788 RS |
3629 | fprintf (stderr, "%s: %d: warning: definition of %s not converted\n", |
3630 | shortpath (NULL, def_dec_p->file->hash_entry->symbol), | |
3631 | identify_lineno (end_formals), | |
3632 | other_var_style); | |
5f8037c4 RS |
3633 | output_up_to (end_formals); |
3634 | return; | |
3635 | } | |
3636 | ||
3637 | if (edit_formals_lists (end_formals, def_dec_p->f_list_count, def_dec_p)) | |
3638 | { | |
3639 | restore_pointers (); | |
3640 | fprintf (stderr, "%s: definition of function `%s' not converted\n", | |
a2b22788 | 3641 | pname, function_to_edit); |
5f8037c4 RS |
3642 | return; |
3643 | } | |
3644 | ||
3645 | /* Have to output the last right paren because this never gets flushed by | |
3646 | edit_formals_list. */ | |
3647 | ||
3648 | output_up_to (end_formals); | |
3649 | ||
3650 | #ifdef UNPROTOIZE | |
3651 | { | |
3652 | const char *decl_p; | |
3653 | const char *semicolon_p; | |
3654 | const char *limit_p; | |
3655 | const char *scan_p; | |
3656 | int had_newlines = 0; | |
3657 | ||
3658 | /* Now write out the K&R style formal declarations, one per line. */ | |
3659 | ||
3660 | decl_p = def_dec_p->formal_decls; | |
3661 | limit_p = decl_p + strlen (decl_p); | |
3662 | for (;decl_p < limit_p; decl_p = semicolon_p + 2) | |
3663 | { | |
3664 | for (semicolon_p = decl_p; *semicolon_p != ';'; semicolon_p++) | |
3665 | continue; | |
3666 | output_string ("\n"); | |
3667 | output_string (indent_string); | |
3668 | output_bytes (decl_p, (size_t) ((semicolon_p + 1) - decl_p)); | |
3669 | } | |
3670 | ||
3671 | /* If there are no newlines between the end of the formals list and the | |
3672 | start of the body, we should insert one now. */ | |
3673 | ||
3674 | for (scan_p = end_formals+1; *scan_p != '{'; ) | |
3675 | { | |
3676 | if (*scan_p == '\n') | |
3677 | { | |
3678 | had_newlines = 1; | |
3679 | break; | |
3680 | } | |
3681 | check_source (++scan_p < clean_text_limit, 0); | |
3682 | } | |
3683 | if (!had_newlines) | |
3684 | output_string ("\n"); | |
3685 | } | |
a019653e | 3686 | #else /* !defined (UNPROTOIZE) */ |
5f8037c4 RS |
3687 | /* If we are protoizing, there may be some flotsum & jetsum (like comments |
3688 | and preprocessing directives) after the old formals list but before | |
3689 | the following { and we would like to preserve that stuff while effectively | |
3690 | deleting the existing K&R formal parameter declarations. We do so here | |
3691 | in a rather tricky way. Basically, we white out any stuff *except* | |
3692 | the comments/pp-directives in the original text buffer, then, if there | |
3693 | is anything in this area *other* than whitespace, we output it. */ | |
3694 | { | |
3695 | const char *end_formals_orig; | |
3696 | const char *start_body; | |
3697 | const char *start_body_orig; | |
3698 | const char *scan; | |
3699 | const char *scan_orig; | |
3700 | int have_flotsum = 0; | |
3701 | int have_newlines = 0; | |
3702 | ||
3703 | for (start_body = end_formals + 1; *start_body != '{';) | |
3704 | check_source (++start_body < clean_text_limit, 0); | |
3705 | ||
3706 | end_formals_orig = orig_text_base + (end_formals - clean_text_base); | |
3707 | start_body_orig = orig_text_base + (start_body - clean_text_base); | |
3708 | scan = end_formals + 1; | |
3709 | scan_orig = end_formals_orig + 1; | |
3710 | for (; scan < start_body; scan++, scan_orig++) | |
3711 | { | |
3712 | if (*scan == *scan_orig) | |
3713 | { | |
3714 | have_newlines |= (*scan_orig == '\n'); | |
3715 | /* Leave identical whitespace alone. */ | |
3716 | if (!isspace (*scan_orig)) | |
3717 | *((NONCONST char *)scan_orig) = ' '; /* identical - so whiteout */ | |
3718 | } | |
3719 | else | |
3720 | have_flotsum = 1; | |
3721 | } | |
3722 | if (have_flotsum) | |
3723 | output_bytes (end_formals_orig + 1, | |
3724 | (size_t) (start_body_orig - end_formals_orig) - 1); | |
3725 | else | |
3726 | if (have_newlines) | |
3727 | output_string ("\n"); | |
3728 | else | |
3729 | output_string (" "); | |
3730 | clean_read_ptr = start_body - 1; | |
3731 | } | |
a019653e | 3732 | #endif /* !defined (UNPROTOIZE) */ |
5f8037c4 RS |
3733 | } |
3734 | ||
3735 | /* Clean up the clean text buffer. Do this by converting comments and | |
3736 | preprocessor directives into spaces. Also convert line continuations | |
3737 | into whitespace. Also, whiteout string and character literals. */ | |
3738 | ||
3739 | static void | |
34e56753 RS |
3740 | do_cleaning (new_clean_text_base, new_clean_text_limit) |
3741 | char *new_clean_text_base; | |
3742 | char *new_clean_text_limit; | |
5f8037c4 RS |
3743 | { |
3744 | char *scan_p; | |
3745 | int non_whitespace_since_newline = 0; | |
3746 | ||
3747 | for (scan_p = new_clean_text_base; scan_p < new_clean_text_limit; scan_p++) | |
3748 | { | |
3749 | switch (*scan_p) | |
3750 | { | |
3751 | case '/': /* Handle comments. */ | |
3752 | if (scan_p[1] != '*') | |
3753 | goto regular; | |
3754 | non_whitespace_since_newline = 1; | |
3755 | scan_p[0] = ' '; | |
3756 | scan_p[1] = ' '; | |
3757 | scan_p += 2; | |
3758 | while (scan_p[1] != '/' || scan_p[0] != '*') | |
3759 | { | |
3760 | if (!isspace (*scan_p)) | |
3761 | *scan_p = ' '; | |
3762 | if (++scan_p >= new_clean_text_limit) | |
3763 | abort (); | |
3764 | } | |
3765 | *scan_p++ = ' '; | |
3766 | *scan_p = ' '; | |
3767 | break; | |
3768 | ||
3769 | case '#': /* Handle pp directives. */ | |
3770 | if (non_whitespace_since_newline) | |
3771 | goto regular; | |
3772 | *scan_p = ' '; | |
3773 | while (scan_p[1] != '\n' || scan_p[0] == '\\') | |
3774 | { | |
3775 | if (!isspace (*scan_p)) | |
3776 | *scan_p = ' '; | |
3777 | if (++scan_p >= new_clean_text_limit) | |
3778 | abort (); | |
3779 | } | |
3780 | *scan_p++ = ' '; | |
3781 | break; | |
3782 | ||
3783 | case '\'': /* Handle character literals. */ | |
3784 | non_whitespace_since_newline = 1; | |
3785 | while (scan_p[1] != '\'' || scan_p[0] == '\\') | |
3786 | { | |
3787 | if (scan_p[0] == '\\' && !isspace (scan_p[1])) | |
3788 | scan_p[1] = ' '; | |
3789 | if (!isspace (*scan_p)) | |
3790 | *scan_p = ' '; | |
3791 | if (++scan_p >= new_clean_text_limit) | |
3792 | abort (); | |
3793 | } | |
3794 | *scan_p++ = ' '; | |
3795 | break; | |
3796 | ||
3797 | case '"': /* Handle string literals. */ | |
3798 | non_whitespace_since_newline = 1; | |
3799 | while (scan_p[1] != '"' || scan_p[0] == '\\') | |
3800 | { | |
3801 | if (scan_p[0] == '\\' && !isspace (scan_p[1])) | |
3802 | scan_p[1] = ' '; | |
3803 | if (!isspace (*scan_p)) | |
3804 | *scan_p = ' '; | |
3805 | if (++scan_p >= new_clean_text_limit) | |
3806 | abort (); | |
3807 | } | |
3808 | *scan_p++ = ' '; | |
3809 | break; | |
3810 | ||
3811 | case '\\': /* Handle line continuations. */ | |
3812 | if (scan_p[1] != '\n') | |
3813 | goto regular; | |
3814 | *scan_p = ' '; | |
3815 | break; | |
3816 | ||
3817 | case '\n': | |
3818 | non_whitespace_since_newline = 0; /* Reset. */ | |
3819 | break; | |
3820 | ||
3821 | case ' ': | |
3822 | case '\v': | |
3823 | case '\t': | |
3824 | case '\r': | |
3825 | case '\f': | |
3826 | case '\b': | |
3827 | break; /* Whitespace characters. */ | |
3828 | ||
3829 | default: | |
3830 | regular: | |
3831 | non_whitespace_since_newline = 1; | |
3832 | break; | |
3833 | } | |
3834 | } | |
3835 | } | |
3836 | ||
3837 | /* Given a pointer to the closing right parenthesis for a particular formals | |
3838 | list (in the clean text buffer) find the corresponding left parenthesis | |
3839 | and return a pointer to it. */ | |
3840 | ||
3841 | static const char * | |
34e56753 RS |
3842 | careful_find_l_paren (p) |
3843 | const char *p; | |
5f8037c4 RS |
3844 | { |
3845 | const char *q; | |
3846 | int paren_depth; | |
3847 | ||
3848 | for (paren_depth = 1, q = p-1; paren_depth; check_source (--q >= clean_text_base, 0)) | |
3849 | { | |
3850 | switch (*q) | |
3851 | { | |
3852 | case ')': | |
3853 | paren_depth++; | |
3854 | break; | |
3855 | case '(': | |
3856 | paren_depth--; | |
3857 | break; | |
3858 | } | |
3859 | } | |
3860 | return ++q; | |
3861 | } | |
3862 | ||
3863 | /* Scan the clean text buffer for cases of function definitions that we | |
3864 | don't really know about because they were preprocessed out when the | |
3865 | aux info files were created. | |
3866 | ||
3867 | In this version of protoize/unprotoize we just give a warning for each | |
3868 | one found. A later version may be able to at least unprotoize such | |
3869 | missed items. | |
3870 | ||
3871 | Note that we may easily find all function definitions simply by | |
3872 | looking for places where there is a left paren which is (ignoring | |
3873 | whitespace) immediately followed by either a left-brace or by an | |
3874 | upper or lower case letter. Whenever we find this combination, we | |
3875 | have also found a function definition header. | |
3876 | ||
3877 | Finding function *declarations* using syntactic clues is much harder. | |
3878 | I will probably try to do this in a later version though. */ | |
3879 | ||
3880 | static void | |
34e56753 RS |
3881 | scan_for_missed_items (file_p) |
3882 | const file_info *file_p; | |
5f8037c4 RS |
3883 | { |
3884 | static const char *scan_p; | |
3885 | const char *limit = clean_text_limit - 3; | |
3886 | static const char *backup_limit; | |
3887 | ||
3888 | backup_limit = clean_text_base - 1; | |
3889 | ||
3890 | for (scan_p = clean_text_base; scan_p < limit; scan_p++) | |
3891 | { | |
3892 | if (*scan_p == ')') | |
3893 | { | |
3894 | static const char *last_r_paren; | |
3895 | const char *ahead_p; | |
3896 | ||
3897 | last_r_paren = scan_p; | |
3898 | ||
3899 | for (ahead_p = scan_p + 1; isspace (*ahead_p); ) | |
3900 | check_source (++ahead_p < limit, limit); | |
3901 | ||
3902 | scan_p = ahead_p - 1; | |
3903 | ||
3904 | if (isalpha (*ahead_p) || *ahead_p == '{') | |
3905 | { | |
3906 | const char *last_l_paren; | |
3907 | const int lineno = identify_lineno (ahead_p); | |
3908 | ||
3909 | if (setjmp (source_confusion_recovery)) | |
3910 | continue; | |
3911 | ||
3912 | /* We know we have a function definition header. Now skip | |
3913 | leftwards over all of its associated formals lists. */ | |
3914 | ||
3915 | do | |
3916 | { | |
3917 | last_l_paren = careful_find_l_paren (last_r_paren); | |
3918 | for (last_r_paren = last_l_paren-1; isspace (*last_r_paren); ) | |
3919 | check_source (--last_r_paren >= backup_limit, backup_limit); | |
3920 | } | |
3921 | while (*last_r_paren == ')'); | |
3922 | ||
3923 | if (is_id_char (*last_r_paren)) | |
3924 | { | |
3925 | const char *id_limit = last_r_paren + 1; | |
3926 | const char *id_start; | |
3927 | size_t id_length; | |
3928 | const def_dec_info *dd_p; | |
3929 | ||
3930 | for (id_start = id_limit-1; is_id_char (*id_start); ) | |
3931 | check_source (--id_start >= backup_limit, backup_limit); | |
3932 | id_start++; | |
3933 | backup_limit = id_start; | |
3934 | if ((id_length = (size_t) (id_limit - id_start)) == 0) | |
3935 | goto not_missed; | |
3936 | ||
3937 | { | |
34e56753 | 3938 | char *func_name = (char *) alloca (id_length + 1); |
5f8037c4 RS |
3939 | static const char * const stmt_keywords[] |
3940 | = { "if", "while", "for", "switch", "return", 0 }; | |
3941 | const char * const *stmt_keyword; | |
3942 | ||
3943 | strncpy (func_name, id_start, id_length); | |
3944 | func_name[id_length] = '\0'; | |
3945 | ||
3946 | /* We must check here to see if we are actually looking at | |
3947 | a statement rather than an actual function call. */ | |
3948 | ||
3949 | for (stmt_keyword = stmt_keywords; *stmt_keyword; stmt_keyword++) | |
3950 | if (!strcmp (func_name, *stmt_keyword)) | |
3951 | goto not_missed; | |
3952 | ||
3953 | #if 0 | |
3954 | fprintf (stderr, "%s: found definition of `%s' at %s(%d)\n", | |
3955 | pname, | |
3956 | func_name, | |
3957 | shortpath (NULL, file_p->hash_entry->symbol), | |
3958 | identify_lineno (id_start)); | |
3959 | #endif /* 0 */ | |
3960 | /* We really should check for a match of the function name | |
3961 | here also, but why bother. */ | |
3962 | ||
3963 | for (dd_p = file_p->defs_decs; dd_p; dd_p = dd_p->next_in_file) | |
3964 | if (dd_p->is_func_def && dd_p->line == lineno) | |
3965 | goto not_missed; | |
3966 | ||
3967 | /* If we make it here, then we did not know about this | |
3968 | function definition. */ | |
3969 | ||
8241a41f | 3970 | fprintf (stderr, "%s: %d: warning: `%s' excluded by preprocessing\n", |
5f8037c4 | 3971 | shortpath (NULL, file_p->hash_entry->symbol), |
a2b22788 | 3972 | identify_lineno (id_start), func_name); |
5f8037c4 RS |
3973 | fprintf (stderr, "%s: function definition not converted\n", |
3974 | pname); | |
3975 | } | |
3976 | not_missed: ; | |
3977 | } | |
3978 | } | |
3979 | } | |
3980 | } | |
3981 | } | |
3982 | ||
3983 | /* Do all editing operations for a single source file (either a "base" file | |
3984 | or an "include" file). To do this we read the file into memory, keep a | |
3985 | virgin copy there, make another cleaned in-core copy of the original file | |
3986 | (i.e. one in which all of the comments and preprocessor directives have | |
3987 | been replaced with whitespace), then use these two in-core copies of the | |
3988 | file to make a new edited in-core copy of the file. Finally, rename the | |
3989 | original file (as a way of saving it), and then write the edited version | |
3990 | of the file from core to a disk file of the same name as the original. | |
3991 | ||
3992 | Note that the trick of making a copy of the original sans comments & | |
3993 | preprocessor directives make the editing a whole lot easier. */ | |
3994 | ||
3995 | static void | |
34e56753 RS |
3996 | edit_file (hp) |
3997 | const hash_table_entry *hp; | |
5f8037c4 RS |
3998 | { |
3999 | struct stat stat_buf; | |
4000 | const file_info *file_p = hp->fip; | |
4001 | char *new_orig_text_base; | |
4002 | char *new_orig_text_limit; | |
4003 | char *new_clean_text_base; | |
4004 | char *new_clean_text_limit; | |
4005 | size_t orig_size; | |
4006 | size_t repl_size; | |
4007 | int first_definition_in_file; | |
4008 | ||
4009 | /* If we are not supposed to be converting this file, or if there is | |
4010 | nothing in there which needs converting, just skip this file. */ | |
4011 | ||
4012 | if (!needs_to_be_converted (file_p)) | |
4013 | return; | |
4014 | ||
a2b22788 | 4015 | convert_filename = file_p->hash_entry->symbol; |
5f8037c4 RS |
4016 | |
4017 | /* Convert a file if it is in a directory where we want conversion | |
4018 | and the file is not excluded. */ | |
4019 | ||
a2b22788 RS |
4020 | if (!directory_specified_p (convert_filename) |
4021 | || file_excluded_p (convert_filename)) | |
5f8037c4 RS |
4022 | { |
4023 | if (!quiet_flag | |
4024 | #ifdef UNPROTOIZE | |
4025 | /* Don't even mention "system" include files unless we are | |
4026 | protoizing. If we are protoizing, we mention these as a | |
1a2ef701 | 4027 | gentle way of prodding the user to convert his "system" |
5f8037c4 | 4028 | include files to prototype format. */ |
a2b22788 | 4029 | && !in_system_include_dir (convert_filename) |
a019653e | 4030 | #endif /* defined (UNPROTOIZE) */ |
5f8037c4 | 4031 | ) |
8241a41f | 4032 | fprintf (stderr, "%s: `%s' not converted\n", |
a2b22788 | 4033 | pname, shortpath (NULL, convert_filename)); |
5f8037c4 RS |
4034 | return; |
4035 | } | |
4036 | ||
4037 | /* Let the user know what we are up to. */ | |
4038 | ||
4039 | if (nochange_flag) | |
34e56753 RS |
4040 | fprintf (stderr, "%s: would convert file `%s'\n", |
4041 | pname, shortpath (NULL, convert_filename)); | |
5f8037c4 | 4042 | else |
34e56753 RS |
4043 | fprintf (stderr, "%s: converting file `%s'\n", |
4044 | pname, shortpath (NULL, convert_filename)); | |
4045 | fflush (stderr); | |
5f8037c4 RS |
4046 | |
4047 | /* Find out the size (in bytes) of the original file. */ | |
4048 | ||
a2b22788 | 4049 | /* The cast avoids an erroneous warning on AIX. */ |
34e56753 | 4050 | if (my_stat ((char *)convert_filename, &stat_buf) == -1) |
5f8037c4 RS |
4051 | { |
4052 | fprintf (stderr, "%s: error: can't get status for file `%s': %s\n", | |
a2b22788 | 4053 | pname, shortpath (NULL, convert_filename), sys_errlist[errno]); |
5f8037c4 RS |
4054 | return; |
4055 | } | |
4056 | orig_size = stat_buf.st_size; | |
4057 | ||
4058 | /* Allocate a buffer to hold the original text. */ | |
4059 | ||
4060 | orig_text_base = new_orig_text_base = (char *) xmalloc (orig_size + 2); | |
4061 | orig_text_limit = new_orig_text_limit = new_orig_text_base + orig_size; | |
4062 | ||
4063 | /* Allocate a buffer to hold the cleaned-up version of the original text. */ | |
4064 | ||
4065 | clean_text_base = new_clean_text_base = (char *) xmalloc (orig_size + 2); | |
4066 | clean_text_limit = new_clean_text_limit = new_clean_text_base + orig_size; | |
4067 | clean_read_ptr = clean_text_base - 1; | |
4068 | ||
4069 | /* Allocate a buffer that will hopefully be large enough to hold the entire | |
4070 | converted output text. As an initial guess for the maximum size of the | |
4071 | output buffer, use 125% of the size of the original + some extra. This | |
4072 | buffer can be expanded later as needed. */ | |
4073 | ||
4074 | repl_size = orig_size + (orig_size >> 2) + 4096; | |
4075 | repl_text_base = (char *) xmalloc (repl_size + 2); | |
4076 | repl_text_limit = repl_text_base + repl_size - 1; | |
4077 | repl_write_ptr = repl_text_base - 1; | |
4078 | ||
4079 | { | |
4080 | int input_file; | |
4081 | ||
4082 | /* Open the file to be converted in READ ONLY mode. */ | |
4083 | ||
34e56753 | 4084 | if ((input_file = my_open (convert_filename, O_RDONLY, 0444)) == -1) |
5f8037c4 RS |
4085 | { |
4086 | fprintf (stderr, "%s: error: can't open file `%s' for reading: %s\n", | |
a2b22788 RS |
4087 | pname, shortpath (NULL, convert_filename), |
4088 | sys_errlist[errno]); | |
5f8037c4 RS |
4089 | return; |
4090 | } | |
4091 | ||
4092 | /* Read the entire original source text file into the original text buffer | |
4093 | in one swell fwoop. Then figure out where the end of the text is and | |
4094 | make sure that it ends with a newline followed by a null. */ | |
4095 | ||
4096 | if (read (input_file, new_orig_text_base, orig_size) != orig_size) | |
4097 | { | |
4098 | close (input_file); | |
4099 | fprintf (stderr, "\n%s: error: while reading input file `%s': %s\n", | |
a2b22788 RS |
4100 | pname, shortpath (NULL, convert_filename), |
4101 | sys_errlist[errno]); | |
5f8037c4 RS |
4102 | return; |
4103 | } | |
4104 | ||
4105 | close (input_file); | |
4106 | } | |
4107 | ||
4108 | if (orig_size == 0 || orig_text_limit[-1] != '\n') | |
4109 | { | |
4110 | *new_orig_text_limit++ = '\n'; | |
4111 | orig_text_limit++; | |
4112 | } | |
4113 | ||
4114 | /* Create the cleaned up copy of the original text. */ | |
4115 | ||
4116 | memcpy (new_clean_text_base, orig_text_base, | |
4117 | (size_t) (orig_text_limit - orig_text_base)); | |
4118 | do_cleaning (new_clean_text_base, new_clean_text_limit); | |
4119 | ||
4120 | #if 0 | |
4121 | { | |
4122 | int clean_file; | |
4123 | size_t clean_size = orig_text_limit - orig_text_base; | |
a2b22788 | 4124 | char *const clean_filename = (char *) alloca (strlen (convert_filename) + 6 + 1); |
5f8037c4 RS |
4125 | |
4126 | /* Open (and create) the clean file. */ | |
4127 | ||
a2b22788 RS |
4128 | strcpy (clean_filename, convert_filename); |
4129 | strcat (clean_filename, ".clean"); | |
4130 | if ((clean_file = creat (clean_filename, 0666)) == -1) | |
5f8037c4 RS |
4131 | { |
4132 | fprintf (stderr, "%s: error: can't create/open clean file `%s': %s\n", | |
a2b22788 RS |
4133 | pname, shortpath (NULL, clean_filename), |
4134 | sys_errlist[errno]); | |
5f8037c4 RS |
4135 | return; |
4136 | } | |
4137 | ||
4138 | /* Write the clean file. */ | |
4139 | ||
4140 | if (write (clean_file, new_clean_text_base, clean_size) != clean_size) | |
4141 | fprintf (stderr, "%s: error: while writing file `%s': %s\n", | |
a2b22788 | 4142 | pname, shortpath (NULL, clean_filename), sys_errlist[errno]); |
5f8037c4 RS |
4143 | |
4144 | close (clean_file); | |
4145 | } | |
4146 | #endif /* 0 */ | |
4147 | ||
4148 | /* Do a simplified scan of the input looking for things that were not | |
4149 | mentioned in the aux info files because of the fact that they were | |
4150 | in a region of the source which was preprocessed-out (via #if or | |
4151 | via #ifdef). */ | |
4152 | ||
4153 | scan_for_missed_items (file_p); | |
4154 | ||
4155 | /* Setup to do line-oriented forward seeking in the clean text buffer. */ | |
4156 | ||
4157 | last_known_line_number = 1; | |
4158 | last_known_line_start = clean_text_base; | |
4159 | ||
4160 | /* Now get down to business and make all of the necessary edits. */ | |
4161 | ||
4162 | { | |
4163 | const def_dec_info *def_dec_p; | |
4164 | ||
4165 | first_definition_in_file = 1; | |
4166 | def_dec_p = file_p->defs_decs; | |
4167 | for (; def_dec_p; def_dec_p = def_dec_p->next_in_file) | |
4168 | { | |
4169 | const char *clean_text_p = seek_to_line (def_dec_p->line); | |
4170 | ||
4171 | /* clean_text_p now points to the first character of the line which | |
4172 | contains the `terminator' for the declaration or definition that | |
4173 | we are about to process. */ | |
4174 | ||
4175 | #ifndef UNPROTOIZE | |
4176 | ||
4177 | if (global_flag && def_dec_p->is_func_def && first_definition_in_file) | |
4178 | { | |
4179 | add_global_decls (def_dec_p->file, clean_text_p); | |
4180 | first_definition_in_file = 0; | |
4181 | } | |
4182 | ||
4183 | /* Don't edit this item if it is already in prototype format or if it | |
4184 | is a function declaration and we have found no corresponding | |
4185 | definition. */ | |
4186 | ||
4187 | if (def_dec_p->prototyped | |
4188 | || (!def_dec_p->is_func_def && !def_dec_p->definition)) | |
4189 | continue; | |
4190 | ||
a019653e | 4191 | #endif /* !defined (UNPROTOIZE) */ |
5f8037c4 RS |
4192 | |
4193 | if (def_dec_p->is_func_def) | |
4194 | edit_fn_definition (def_dec_p, clean_text_p); | |
4195 | else | |
4196 | #ifndef UNPROTOIZE | |
4197 | if (def_dec_p->is_implicit) | |
4198 | add_local_decl (def_dec_p, clean_text_p); | |
4199 | else | |
a019653e | 4200 | #endif /* !defined (UNPROTOIZE) */ |
5f8037c4 RS |
4201 | edit_fn_declaration (def_dec_p, clean_text_p); |
4202 | } | |
4203 | } | |
4204 | ||
4205 | /* Finalize things. Output the last trailing part of the original text. */ | |
4206 | ||
4207 | output_up_to (clean_text_limit - 1); | |
4208 | ||
4209 | /* If this is just a test run, stop now and just deallocate the buffers. */ | |
4210 | ||
4211 | if (nochange_flag) | |
4212 | { | |
4213 | free (new_orig_text_base); | |
4214 | free (new_clean_text_base); | |
4215 | free (repl_text_base); | |
4216 | return; | |
4217 | } | |
4218 | ||
4219 | /* Change the name of the original input file. This is just a quick way of | |
4220 | saving the original file. */ | |
4221 | ||
4222 | if (!nosave_flag) | |
4223 | { | |
a2b22788 RS |
4224 | char *new_filename = |
4225 | (char *) xmalloc (strlen (convert_filename) + strlen (save_suffix) + 2); | |
5f8037c4 | 4226 | |
a2b22788 RS |
4227 | strcpy (new_filename, convert_filename); |
4228 | strcat (new_filename, save_suffix); | |
34e56753 | 4229 | if (my_link (convert_filename, new_filename) == -1) |
5f8037c4 RS |
4230 | { |
4231 | if (errno == EEXIST) | |
4232 | { | |
4233 | if (!quiet_flag) | |
4234 | fprintf (stderr, "%s: warning: file `%s' already saved in `%s'\n", | |
a2b22788 RS |
4235 | pname, |
4236 | shortpath (NULL, convert_filename), | |
4237 | shortpath (NULL, new_filename)); | |
5f8037c4 RS |
4238 | } |
4239 | else | |
4240 | { | |
4241 | fprintf (stderr, "%s: error: can't link file `%s' to `%s': %s\n", | |
a2b22788 RS |
4242 | pname, |
4243 | shortpath (NULL, convert_filename), | |
4244 | shortpath (NULL, new_filename), | |
4245 | sys_errlist[errno]); | |
5f8037c4 RS |
4246 | return; |
4247 | } | |
4248 | } | |
4249 | } | |
4250 | ||
34e56753 | 4251 | if (my_unlink (convert_filename) == -1) |
5f8037c4 RS |
4252 | { |
4253 | fprintf (stderr, "%s: error: can't delete file `%s': %s\n", | |
a2b22788 | 4254 | pname, shortpath (NULL, convert_filename), sys_errlist[errno]); |
5f8037c4 RS |
4255 | return; |
4256 | } | |
4257 | ||
4258 | { | |
4259 | int output_file; | |
4260 | ||
4261 | /* Open (and create) the output file. */ | |
4262 | ||
a2b22788 | 4263 | if ((output_file = creat (convert_filename, 0666)) == -1) |
5f8037c4 RS |
4264 | { |
4265 | fprintf (stderr, "%s: error: can't create/open output file `%s': %s\n", | |
a2b22788 RS |
4266 | pname, shortpath (NULL, convert_filename), |
4267 | sys_errlist[errno]); | |
5f8037c4 RS |
4268 | return; |
4269 | } | |
4270 | ||
4271 | /* Write the output file. */ | |
4272 | ||
4273 | { | |
4274 | unsigned int out_size = (repl_write_ptr + 1) - repl_text_base; | |
4275 | ||
4276 | if (write (output_file, repl_text_base, out_size) != out_size) | |
4277 | fprintf (stderr, "%s: error: while writing file `%s': %s\n", | |
a2b22788 RS |
4278 | pname, shortpath (NULL, convert_filename), |
4279 | sys_errlist[errno]); | |
5f8037c4 RS |
4280 | } |
4281 | ||
4282 | close (output_file); | |
4283 | } | |
4284 | ||
4285 | /* Deallocate the conversion buffers. */ | |
4286 | ||
4287 | free (new_orig_text_base); | |
4288 | free (new_clean_text_base); | |
4289 | free (repl_text_base); | |
4290 | ||
4291 | /* Change the mode of the output file to match the original file. */ | |
4292 | ||
a2b22788 | 4293 | /* The cast avoids an erroneous warning on AIX. */ |
34e56753 | 4294 | if (my_chmod ((char *)convert_filename, stat_buf.st_mode) == -1) |
5f8037c4 | 4295 | fprintf (stderr, "%s: error: can't change mode of file `%s': %s\n", |
a2b22788 | 4296 | pname, shortpath (NULL, convert_filename), sys_errlist[errno]); |
5f8037c4 RS |
4297 | |
4298 | /* Note: We would try to change the owner and group of the output file | |
4299 | to match those of the input file here, except that may not be a good | |
4300 | thing to do because it might be misleading. Also, it might not even | |
4301 | be possible to do that (on BSD systems with quotas for instance). */ | |
4302 | } | |
4303 | ||
4304 | /* Do all of the individual steps needed to do the protoization (or | |
4305 | unprotoization) of the files referenced in the aux_info files given | |
4306 | in the command line. */ | |
4307 | ||
4308 | static void | |
34e56753 | 4309 | do_processing () |
5f8037c4 RS |
4310 | { |
4311 | const char * const *base_pp; | |
a2b22788 RS |
4312 | const char * const * const end_pps |
4313 | = &base_source_filenames[n_base_source_files]; | |
5f8037c4 RS |
4314 | |
4315 | #ifndef UNPROTOIZE | |
4316 | int syscalls_len; | |
a019653e | 4317 | #endif /* !defined (UNPROTOIZE) */ |
5f8037c4 RS |
4318 | |
4319 | /* One-by-one, check (and create if necessary), open, and read all of the | |
4320 | stuff in each aux_info file. After reading each aux_info file, the | |
4321 | aux_info_file just read will be automatically deleted unless the | |
4322 | keep_flag is set. */ | |
4323 | ||
a2b22788 | 4324 | for (base_pp = base_source_filenames; base_pp < end_pps; base_pp++) |
5f8037c4 RS |
4325 | process_aux_info_file (*base_pp, keep_flag, 0); |
4326 | ||
4327 | #ifndef UNPROTOIZE | |
4328 | ||
4329 | /* Also open and read the special SYSCALLS.c aux_info file which gives us | |
4330 | the prototypes for all of the standard system-supplied functions. */ | |
4331 | ||
4332 | if (nondefault_syscalls_dir) | |
4333 | { | |
a2b22788 | 4334 | syscalls_absolute_filename |
5f8037c4 | 4335 | = (char *) xmalloc (strlen (nondefault_syscalls_dir) |
d742f26c | 4336 | + sizeof (syscalls_filename) + 1); |
a2b22788 | 4337 | strcpy (syscalls_absolute_filename, nondefault_syscalls_dir); |
5f8037c4 RS |
4338 | } |
4339 | else | |
4340 | { | |
a2b22788 | 4341 | syscalls_absolute_filename |
5f8037c4 | 4342 | = (char *) xmalloc (strlen (default_syscalls_dir) |
d742f26c | 4343 | + sizeof (syscalls_filename) + 1); |
a2b22788 | 4344 | strcpy (syscalls_absolute_filename, default_syscalls_dir); |
5f8037c4 RS |
4345 | } |
4346 | ||
34e56753 | 4347 | syscalls_len = strlen (syscalls_absolute_filename); |
a2b22788 | 4348 | if (*(syscalls_absolute_filename + syscalls_len - 1) != '/') |
5f8037c4 | 4349 | { |
a2b22788 RS |
4350 | *(syscalls_absolute_filename + syscalls_len++) = '/'; |
4351 | *(syscalls_absolute_filename + syscalls_len) = '\0'; | |
5f8037c4 | 4352 | } |
a2b22788 | 4353 | strcat (syscalls_absolute_filename, syscalls_filename); |
5f8037c4 RS |
4354 | |
4355 | /* Call process_aux_info_file in such a way that it does not try to | |
4356 | delete the SYSCALLS aux_info file. */ | |
4357 | ||
a2b22788 | 4358 | process_aux_info_file (syscalls_absolute_filename, 1, 1); |
5f8037c4 | 4359 | |
a019653e | 4360 | #endif /* !defined (UNPROTOIZE) */ |
5f8037c4 RS |
4361 | |
4362 | /* When we first read in all of the information from the aux_info files | |
6dc42e49 | 4363 | we saved in it descending line number order, because that was likely to |
5f8037c4 RS |
4364 | be faster. Now however, we want the chains of def & dec records to |
4365 | appear in ascending line number order as we get further away from the | |
4366 | file_info record that they hang from. The following line causes all of | |
4367 | these lists to be rearranged into ascending line number order. */ | |
4368 | ||
a2b22788 | 4369 | visit_each_hash_node (filename_primary, reverse_def_dec_list); |
5f8037c4 RS |
4370 | |
4371 | #ifndef UNPROTOIZE | |
4372 | ||
4373 | /* Now do the "real" work. The following line causes each declaration record | |
4374 | to be "visited". For each of these nodes, an attempt is made to match | |
4375 | up the function declaration with a corresponding function definition, | |
4376 | which should have a full prototype-format formals list with it. Once | |
4377 | these match-ups are made, the conversion of the function declarations | |
4378 | to prototype format can be made. */ | |
4379 | ||
4380 | visit_each_hash_node (function_name_primary, connect_defs_and_decs); | |
4381 | ||
a019653e | 4382 | #endif /* !defined (UNPROTOIZE) */ |
5f8037c4 RS |
4383 | |
4384 | /* Now convert each file that can be converted (and needs to be). */ | |
4385 | ||
a2b22788 | 4386 | visit_each_hash_node (filename_primary, edit_file); |
5f8037c4 RS |
4387 | |
4388 | #ifndef UNPROTOIZE | |
4389 | ||
4390 | /* If we are working in cplusplus mode, try to rename all .c files to .C | |
4391 | files. Don't panic if some of the renames don't work. */ | |
4392 | ||
4393 | if (cplusplus_flag && !nochange_flag) | |
a2b22788 | 4394 | visit_each_hash_node (filename_primary, rename_c_file); |
5f8037c4 | 4395 | |
a019653e | 4396 | #endif /* !defined (UNPROTOIZE) */ |
5f8037c4 RS |
4397 | } |
4398 | \f | |
4399 | static struct option longopts[] = | |
4400 | { | |
4401 | {"version", 0, 0, 'V'}, | |
a019653e | 4402 | {"file_name", 0, 0, 'p'}, |
5f8037c4 RS |
4403 | {"quiet", 0, 0, 'q'}, |
4404 | {"silent", 0, 0, 'q'}, | |
4405 | {"force", 0, 0, 'f'}, | |
4406 | {"keep", 0, 0, 'k'}, | |
4407 | {"nosave", 0, 0, 'N'}, | |
4408 | {"nochange", 0, 0, 'n'}, | |
4409 | {"compiler-options", 1, 0, 'c'}, | |
4410 | {"exclude", 1, 0, 'x'}, | |
4411 | {"directory", 1, 0, 'd'}, | |
4412 | #ifdef UNPROTOIZE | |
4413 | {"indent", 1, 0, 'i'}, | |
4414 | #else | |
4415 | {"local", 0, 0, 'l'}, | |
4416 | {"global", 0, 0, 'g'}, | |
4417 | {"c++", 0, 0, 'C'}, | |
4418 | {"syscalls-dir", 1, 0, 'B'}, | |
4419 | #endif | |
4420 | {0, 0, 0, 0} | |
4421 | }; | |
4422 | ||
4423 | int | |
34e56753 RS |
4424 | main (argc, argv) |
4425 | int argc; | |
4426 | char **const argv; | |
5f8037c4 RS |
4427 | { |
4428 | int longind; | |
4429 | int c; | |
f5188608 | 4430 | const char *params = ""; |
5f8037c4 RS |
4431 | |
4432 | pname = strrchr (argv[0], '/'); | |
4433 | pname = pname ? pname+1 : argv[0]; | |
4434 | ||
2e494f70 RS |
4435 | cwd_buffer = getpwd (); |
4436 | if (!cwd_buffer) | |
5f8037c4 | 4437 | { |
2e494f70 RS |
4438 | fprintf (stderr, "%s: cannot get working directory: %s\n", |
4439 | pname, sys_errlist[errno]); | |
4440 | exit (1); | |
5f8037c4 RS |
4441 | } |
4442 | ||
4443 | /* By default, convert the files in the current directory. */ | |
4444 | directory_list = string_list_cons (cwd_buffer, NULL); | |
4445 | ||
4446 | while ((c = getopt_long (argc, argv, | |
4447 | #ifdef UNPROTOIZE | |
ef91d7e2 | 4448 | "c:d:i:knNp:qVx:", |
5f8037c4 | 4449 | #else |
ef91d7e2 | 4450 | "B:c:Cd:gklnNp:qVx:", |
5f8037c4 RS |
4451 | #endif |
4452 | longopts, &longind)) != EOF) | |
4453 | { | |
4454 | if (c == 0) /* Long option. */ | |
4455 | c = longopts[longind].val; | |
4456 | switch (c) | |
4457 | { | |
ef91d7e2 | 4458 | case 'p': |
a019653e | 4459 | compiler_file_name = optarg; |
ef91d7e2 | 4460 | break; |
5f8037c4 RS |
4461 | case 'd': |
4462 | directory_list | |
4463 | = string_list_cons (abspath (NULL, optarg), directory_list); | |
4464 | break; | |
4465 | case 'x': | |
4466 | exclude_list = string_list_cons (optarg, exclude_list); | |
4467 | break; | |
4468 | ||
4469 | case 'V': | |
4470 | version_flag = 1; | |
4471 | break; | |
4472 | case 'q': | |
4473 | quiet_flag = 1; | |
4474 | break; | |
4475 | #if 0 | |
4476 | case 'f': | |
4477 | force_flag = 1; | |
4478 | break; | |
4479 | #endif | |
4480 | case 'n': | |
4481 | nochange_flag = 1; | |
4482 | keep_flag = 1; | |
4483 | break; | |
4484 | case 'N': | |
4485 | nosave_flag = 1; | |
4486 | break; | |
4487 | case 'k': | |
4488 | keep_flag = 1; | |
4489 | break; | |
4490 | case 'c': | |
a609bfc6 | 4491 | params = optarg; |
5f8037c4 RS |
4492 | break; |
4493 | #ifdef UNPROTOIZE | |
4494 | case 'i': | |
4495 | indent_string = optarg; | |
4496 | break; | |
a019653e | 4497 | #else /* !defined (UNPROTOIZE) */ |
5f8037c4 RS |
4498 | case 'l': |
4499 | local_flag = 1; | |
4500 | break; | |
4501 | case 'g': | |
4502 | global_flag = 1; | |
4503 | break; | |
4504 | case 'C': | |
4505 | cplusplus_flag = 1; | |
4506 | break; | |
4507 | case 'B': | |
4508 | nondefault_syscalls_dir = optarg; | |
4509 | break; | |
a019653e | 4510 | #endif /* !defined (UNPROTOIZE) */ |
5f8037c4 RS |
4511 | default: |
4512 | usage (); | |
4513 | } | |
4514 | } | |
4515 | ||
a609bfc6 RS |
4516 | /* Set up compile_params based on -p and -c options. */ |
4517 | munge_compile_params (params); | |
4518 | ||
a2b22788 | 4519 | n_base_source_files = argc - optind; |
5f8037c4 | 4520 | |
a2b22788 | 4521 | /* Now actually make a list of the base source filenames. */ |
5f8037c4 | 4522 | |
a2b22788 RS |
4523 | base_source_filenames = |
4524 | (const char **) xmalloc ((n_base_source_files + 1) * sizeof (char *)); | |
4525 | n_base_source_files = 0; | |
5f8037c4 RS |
4526 | for (; optind < argc; optind++) |
4527 | { | |
4528 | const char *path = abspath (NULL, argv[optind]); | |
4529 | int len = strlen (path); | |
4530 | ||
4531 | if (path[len-1] == 'c' && path[len-2] == '.') | |
a2b22788 | 4532 | base_source_filenames[n_base_source_files++] = path; |
5f8037c4 RS |
4533 | else |
4534 | { | |
a2b22788 | 4535 | fprintf (stderr, "%s: input file names must have .c suffixes: %s\n", |
5f8037c4 RS |
4536 | pname, shortpath (NULL, path)); |
4537 | errors++; | |
4538 | } | |
4539 | } | |
4540 | ||
4541 | #ifndef UNPROTOIZE | |
4542 | /* We are only interested in the very first identifier token in the | |
4543 | definition of `va_list', so if there is more junk after that first | |
4544 | identifier token, delete it from the `varargs_style_indicator'. */ | |
4545 | { | |
4546 | const char *cp; | |
4547 | ||
4548 | for (cp = varargs_style_indicator; isalnum (*cp) || *cp == '_'; cp++) | |
4549 | continue; | |
4550 | if (*cp != 0) | |
4551 | varargs_style_indicator = savestring (varargs_style_indicator, | |
4552 | cp - varargs_style_indicator); | |
4553 | } | |
a019653e | 4554 | #endif /* !defined (UNPROTOIZE) */ |
5f8037c4 RS |
4555 | |
4556 | if (errors) | |
4557 | usage (); | |
4558 | else | |
4559 | { | |
4560 | if (version_flag) | |
4561 | fprintf (stderr, "%s: %s\n", pname, version_string); | |
4562 | do_processing (); | |
4563 | } | |
4564 | if (errors) | |
4565 | exit (1); | |
4566 | else | |
4567 | exit (0); | |
4568 | return 1; | |
4569 | } |