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d4bb0623 | 1 | /* Protoize program - Original version by Ron Guilmette (rfg@segfault.us.com). |
af841dbd | 2 | Copyright (C) 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998, |
fe9565ed | 3 | 1999, 2000, 2001, 2002, 2003, 2004, 2005 Free Software Foundation, Inc. |
5f8037c4 | 4 | |
1322177d | 5 | This file is part of GCC. |
5f8037c4 | 6 | |
1322177d LB |
7 | GCC is free software; you can redistribute it and/or modify it under |
8 | the terms of the GNU General Public License as published by the Free | |
9 | Software Foundation; either version 2, or (at your option) any later | |
10 | version. | |
5f8037c4 | 11 | |
1322177d LB |
12 | GCC is distributed in the hope that it will be useful, but WITHOUT ANY |
13 | WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
14 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
15 | for more details. | |
5f8037c4 RS |
16 | |
17 | You should have received a copy of the GNU General Public License | |
1322177d LB |
18 | along with GCC; see the file COPYING. If not, write to the Free |
19 | Software Foundation, 59 Temple Place - Suite 330, Boston, MA | |
20 | 02111-1307, USA. */ | |
5f8037c4 | 21 | |
34e56753 | 22 | #include "config.h" |
944fc8ab | 23 | #include "system.h" |
4977bab6 ZW |
24 | #include "coretypes.h" |
25 | #include "tm.h" | |
38d9d130 | 26 | #include "intl.h" |
75a65e46 | 27 | #include "cppdefault.h" |
38d9d130 | 28 | |
5f8037c4 | 29 | #include <setjmp.h> |
ffb9f2f1 | 30 | #include <signal.h> |
798bdf70 BK |
31 | #if ! defined( SIGCHLD ) && defined( SIGCLD ) |
32 | # define SIGCHLD SIGCLD | |
33 | #endif | |
ee77eda5 MK |
34 | #ifdef HAVE_UNISTD_H |
35 | #include <unistd.h> | |
36 | #endif | |
9f8f4efe | 37 | #include "version.h" |
b0e87872 | 38 | |
dc297297 | 39 | /* Include getopt.h for the sake of getopt_long. */ |
5f8037c4 RS |
40 | #include "getopt.h" |
41 | ||
ee77eda5 MK |
42 | /* Macro to see if the path elements match. */ |
43 | #ifdef HAVE_DOS_BASED_FILE_SYSTEM | |
ce1cc601 | 44 | #define IS_SAME_PATH_CHAR(a,b) (TOUPPER (a) == TOUPPER (b)) |
ee77eda5 MK |
45 | #else |
46 | #define IS_SAME_PATH_CHAR(a,b) ((a) == (b)) | |
47 | #endif | |
48 | ||
49 | /* Macro to see if the paths match. */ | |
3dce1408 | 50 | #define IS_SAME_PATH(a,b) (FILENAME_CMP (a, b) == 0) |
ee77eda5 | 51 | |
a7db8bbb MK |
52 | /* Suffix for aux-info files. */ |
53 | #ifdef __MSDOS__ | |
54 | #define AUX_INFO_SUFFIX "X" | |
55 | #else | |
56 | #define AUX_INFO_SUFFIX ".X" | |
57 | #endif | |
58 | ||
59 | /* Suffix for saved files. */ | |
60 | #ifdef __MSDOS__ | |
61 | #define SAVE_SUFFIX "sav" | |
62 | #else | |
63 | #define SAVE_SUFFIX ".save" | |
64 | #endif | |
65 | ||
ee77eda5 MK |
66 | /* Suffix for renamed C++ files. */ |
67 | #ifdef HAVE_DOS_BASED_FILE_SYSTEM | |
68 | #define CPLUS_FILE_SUFFIX "cc" | |
69 | #else | |
70 | #define CPLUS_FILE_SUFFIX "C" | |
71 | #endif | |
72 | ||
439f7bc3 AJ |
73 | static void usage (void) ATTRIBUTE_NORETURN; |
74 | static void aux_info_corrupted (void) ATTRIBUTE_NORETURN; | |
75 | static void declare_source_confusing (const char *) ATTRIBUTE_NORETURN; | |
76 | static const char *shortpath (const char *, const char *); | |
439f7bc3 AJ |
77 | static void notice (const char *, ...) ATTRIBUTE_PRINTF_1; |
78 | static char *savestring (const char *, unsigned int); | |
79 | static char *dupnstr (const char *, size_t); | |
439f7bc3 AJ |
80 | static int safe_read (int, void *, int); |
81 | static void safe_write (int, void *, int, const char *); | |
82 | static void save_pointers (void); | |
83 | static void restore_pointers (void); | |
84 | static int is_id_char (int); | |
85 | static int in_system_include_dir (const char *); | |
86 | static int directory_specified_p (const char *); | |
87 | static int file_excluded_p (const char *); | |
88 | static char *unexpand_if_needed (const char *); | |
89 | static char *abspath (const char *, const char *); | |
90 | static void check_aux_info (int); | |
91 | static const char *find_corresponding_lparen (const char *); | |
92 | static int referenced_file_is_newer (const char *, time_t); | |
93 | static void save_def_or_dec (const char *, int); | |
94 | static void munge_compile_params (const char *); | |
95 | static int gen_aux_info_file (const char *); | |
96 | static void process_aux_info_file (const char *, int, int); | |
97 | static int identify_lineno (const char *); | |
98 | static void check_source (int, const char *); | |
99 | static const char *seek_to_line (int); | |
100 | static const char *forward_to_next_token_char (const char *); | |
101 | static void output_bytes (const char *, size_t); | |
102 | static void output_string (const char *); | |
103 | static void output_up_to (const char *); | |
104 | static int other_variable_style_function (const char *); | |
105 | static const char *find_rightmost_formals_list (const char *); | |
106 | static void do_cleaning (char *, const char *); | |
107 | static const char *careful_find_l_paren (const char *); | |
108 | static void do_processing (void); | |
5f8037c4 RS |
109 | |
110 | /* Look for these where the `const' qualifier is intentionally cast aside. */ | |
5f8037c4 RS |
111 | #define NONCONST |
112 | ||
5f8037c4 RS |
113 | /* Define a default place to find the SYSCALLS.X file. */ |
114 | ||
d059a239 FF |
115 | #ifndef UNPROTOIZE |
116 | ||
117 | #ifndef STANDARD_EXEC_PREFIX | |
118 | #define STANDARD_EXEC_PREFIX "/usr/local/lib/gcc-lib/" | |
119 | #endif /* !defined STANDARD_EXEC_PREFIX */ | |
120 | ||
ffb9f2f1 KG |
121 | static const char * const standard_exec_prefix = STANDARD_EXEC_PREFIX; |
122 | static const char * const target_machine = DEFAULT_TARGET_MACHINE; | |
123 | static const char * const target_version = DEFAULT_TARGET_VERSION; | |
d059a239 | 124 | |
d059a239 | 125 | #endif /* !defined (UNPROTOIZE) */ |
5f8037c4 | 126 | |
5f8037c4 RS |
127 | /* Suffix of aux_info files. */ |
128 | ||
a7db8bbb | 129 | static const char * const aux_info_suffix = AUX_INFO_SUFFIX; |
5f8037c4 | 130 | |
a2b22788 | 131 | /* String to attach to filenames for saved versions of original files. */ |
5f8037c4 | 132 | |
a7db8bbb | 133 | static const char * const save_suffix = SAVE_SUFFIX; |
5f8037c4 | 134 | |
c1b50e49 KG |
135 | #ifndef UNPROTOIZE |
136 | ||
ee77eda5 MK |
137 | /* String to attach to C filenames renamed to C++. */ |
138 | ||
139 | static const char * const cplus_suffix = CPLUS_FILE_SUFFIX; | |
140 | ||
5f8037c4 RS |
141 | /* File name of the file which contains descriptions of standard system |
142 | routines. Note that we never actually do anything with this file per se, | |
143 | but we do read in its corresponding aux_info file. */ | |
144 | ||
d742f26c | 145 | static const char syscalls_filename[] = "SYSCALLS.c"; |
5f8037c4 RS |
146 | |
147 | /* Default place to find the above file. */ | |
148 | ||
ffb9f2f1 | 149 | static const char * default_syscalls_dir; |
5f8037c4 | 150 | |
a2b22788 | 151 | /* Variable to hold the complete absolutized filename of the SYSCALLS.c.X |
5f8037c4 RS |
152 | file. */ |
153 | ||
a2b22788 | 154 | static char * syscalls_absolute_filename; |
5f8037c4 | 155 | |
a019653e | 156 | #endif /* !defined (UNPROTOIZE) */ |
5f8037c4 | 157 | |
0f41302f | 158 | /* Type of the structure that holds information about macro unexpansions. */ |
5f8037c4 RS |
159 | |
160 | struct unexpansion_struct { | |
8b60264b KG |
161 | const char *const expanded; |
162 | const char *const contracted; | |
5f8037c4 RS |
163 | }; |
164 | typedef struct unexpansion_struct unexpansion; | |
165 | ||
166 | /* A table of conversions that may need to be made for some (stupid) older | |
167 | operating systems where these types are preprocessor macros rather than | |
168 | typedefs (as they really ought to be). | |
169 | ||
170 | WARNING: The contracted forms must be as small (or smaller) as the | |
171 | expanded forms, or else havoc will ensue. */ | |
172 | ||
173 | static const unexpansion unexpansions[] = { | |
174 | { "struct _iobuf", "FILE" }, | |
175 | { 0, 0 } | |
176 | }; | |
177 | ||
178 | /* The number of "primary" slots in the hash tables for filenames and for | |
179 | function names. This can be as big or as small as you like, except that | |
180 | it must be a power of two. */ | |
181 | ||
182 | #define HASH_TABLE_SIZE (1 << 9) | |
183 | ||
184 | /* Bit mask to use when computing hash values. */ | |
185 | ||
186 | static const int hash_mask = (HASH_TABLE_SIZE - 1); | |
187 | ||
5f8037c4 RS |
188 | |
189 | /* Datatype for lists of directories or filenames. */ | |
190 | struct string_list | |
191 | { | |
ffb9f2f1 | 192 | const char *name; |
5f8037c4 RS |
193 | struct string_list *next; |
194 | }; | |
195 | ||
439f7bc3 AJ |
196 | static struct string_list *string_list_cons (const char *, |
197 | struct string_list *); | |
ffb9f2f1 | 198 | |
5f8037c4 RS |
199 | /* List of directories in which files should be converted. */ |
200 | ||
201 | struct string_list *directory_list; | |
202 | ||
203 | /* List of file names which should not be converted. | |
204 | A file is excluded if the end of its name, following a /, | |
205 | matches one of the names in this list. */ | |
206 | ||
207 | struct string_list *exclude_list; | |
208 | ||
209 | /* The name of the other style of variable-number-of-parameters functions | |
210 | (i.e. the style that we want to leave unconverted because we don't yet | |
211 | know how to convert them to this style. This string is used in warning | |
212 | messages. */ | |
213 | ||
214 | /* Also define here the string that we can search for in the parameter lists | |
215 | taken from the .X files which will unambiguously indicate that we have | |
216 | found a varargs style function. */ | |
217 | ||
218 | #ifdef UNPROTOIZE | |
219 | static const char * const other_var_style = "stdarg"; | |
a019653e | 220 | #else /* !defined (UNPROTOIZE) */ |
5f8037c4 | 221 | static const char * const other_var_style = "varargs"; |
1681bed6 | 222 | static const char *varargs_style_indicator = "va_alist"; |
a019653e | 223 | #endif /* !defined (UNPROTOIZE) */ |
5f8037c4 RS |
224 | |
225 | /* The following two types are used to create hash tables. In this program, | |
226 | there are two hash tables which are used to store and quickly lookup two | |
227 | different classes of strings. The first type of strings stored in the | |
a2b22788 | 228 | first hash table are absolute filenames of files which protoize needs to |
5f8037c4 RS |
229 | know about. The second type of strings (stored in the second hash table) |
230 | are function names. It is this second class of strings which really | |
231 | inspired the use of the hash tables, because there may be a lot of them. */ | |
232 | ||
233 | typedef struct hash_table_entry_struct hash_table_entry; | |
234 | ||
235 | /* Do some typedefs so that we don't have to write "struct" so often. */ | |
236 | ||
237 | typedef struct def_dec_info_struct def_dec_info; | |
238 | typedef struct file_info_struct file_info; | |
239 | typedef struct f_list_chain_item_struct f_list_chain_item; | |
240 | ||
ffb9f2f1 | 241 | #ifndef UNPROTOIZE |
439f7bc3 AJ |
242 | static int is_syscalls_file (const file_info *); |
243 | static void rename_c_file (const hash_table_entry *); | |
244 | static const def_dec_info *find_extern_def (const def_dec_info *, | |
245 | const def_dec_info *); | |
246 | static const def_dec_info *find_static_definition (const def_dec_info *); | |
247 | static void connect_defs_and_decs (const hash_table_entry *); | |
248 | static void add_local_decl (const def_dec_info *, const char *); | |
249 | static void add_global_decls (const file_info *, const char *); | |
ffb9f2f1 | 250 | #endif /* ! UNPROTOIZE */ |
439f7bc3 AJ |
251 | static int needs_to_be_converted (const file_info *); |
252 | static void visit_each_hash_node (const hash_table_entry *, | |
253 | void (*)(const hash_table_entry *)); | |
254 | static hash_table_entry *add_symbol (hash_table_entry *, const char *); | |
255 | static hash_table_entry *lookup (hash_table_entry *, const char *); | |
256 | static void free_def_dec (def_dec_info *); | |
257 | static file_info *find_file (const char *, int); | |
258 | static void reverse_def_dec_list (const hash_table_entry *); | |
259 | static void edit_fn_declaration (const def_dec_info *, const char *); | |
260 | static int edit_formals_lists (const char *, unsigned int, | |
261 | const def_dec_info *); | |
262 | static void edit_fn_definition (const def_dec_info *, const char *); | |
263 | static void scan_for_missed_items (const file_info *); | |
264 | static void edit_file (const hash_table_entry *); | |
ffb9f2f1 | 265 | |
5f8037c4 | 266 | /* In the struct below, note that the "_info" field has two different uses |
a2b22788 RS |
267 | depending on the type of hash table we are in (i.e. either the filenames |
268 | hash table or the function names hash table). In the filenames hash table | |
5f8037c4 | 269 | the info fields of the entries point to the file_info struct which is |
a2b22788 | 270 | associated with each filename (1 per filename). In the function names |
5f8037c4 RS |
271 | hash table, the info field points to the head of a singly linked list of |
272 | def_dec_info entries which are all defs or decs of the function whose | |
273 | name is pointed to by the "symbol" field. Keeping all of the defs/decs | |
274 | for a given function name on a special list specifically for that function | |
275 | name makes it quick and easy to find out all of the important information | |
276 | about a given (named) function. */ | |
277 | ||
278 | struct hash_table_entry_struct { | |
279 | hash_table_entry * hash_next; /* -> to secondary entries */ | |
280 | const char * symbol; /* -> to the hashed string */ | |
281 | union { | |
282 | const def_dec_info * _ddip; | |
283 | file_info * _fip; | |
284 | } _info; | |
285 | }; | |
286 | #define ddip _info._ddip | |
287 | #define fip _info._fip | |
288 | ||
289 | /* Define a type specifically for our two hash tables. */ | |
290 | ||
291 | typedef hash_table_entry hash_table[HASH_TABLE_SIZE]; | |
292 | ||
293 | /* The following struct holds all of the important information about any | |
a2b22788 | 294 | single filename (e.g. file) which we need to know about. */ |
5f8037c4 RS |
295 | |
296 | struct file_info_struct { | |
297 | const hash_table_entry * hash_entry; /* -> to associated hash entry */ | |
298 | const def_dec_info * defs_decs; /* -> to chain of defs/decs */ | |
299 | time_t mtime; /* Time of last modification. */ | |
300 | }; | |
301 | ||
302 | /* Due to the possibility that functions may return pointers to functions, | |
303 | (which may themselves have their own parameter lists) and due to the | |
304 | fact that returned pointers-to-functions may be of type "pointer-to- | |
305 | function-returning-pointer-to-function" (ad nauseum) we have to keep | |
306 | an entire chain of ANSI style formal parameter lists for each function. | |
307 | ||
308 | Normally, for any given function, there will only be one formals list | |
309 | on the chain, but you never know. | |
310 | ||
311 | Note that the head of each chain of formals lists is pointed to by the | |
312 | `f_list_chain' field of the corresponding def_dec_info record. | |
313 | ||
314 | For any given chain, the item at the head of the chain is the *leftmost* | |
315 | parameter list seen in the actual C language function declaration. If | |
316 | there are other members of the chain, then these are linked in left-to-right | |
317 | order from the head of the chain. */ | |
318 | ||
319 | struct f_list_chain_item_struct { | |
320 | const f_list_chain_item * chain_next; /* -> to next item on chain */ | |
321 | const char * formals_list; /* -> to formals list string */ | |
322 | }; | |
323 | ||
324 | /* The following struct holds all of the important information about any | |
325 | single function definition or declaration which we need to know about. | |
326 | Note that for unprotoize we don't need to know very much because we | |
327 | never even create records for stuff that we don't intend to convert | |
328 | (like for instance defs and decs which are already in old K&R format | |
329 | and "implicit" function declarations). */ | |
330 | ||
331 | struct def_dec_info_struct { | |
332 | const def_dec_info * next_in_file; /* -> to rest of chain for file */ | |
333 | file_info * file; /* -> file_info for containing file */ | |
334 | int line; /* source line number of def/dec */ | |
335 | const char * ansi_decl; /* -> left end of ansi decl */ | |
336 | hash_table_entry * hash_entry; /* -> hash entry for function name */ | |
337 | unsigned int is_func_def; /* = 0 means this is a declaration */ | |
338 | const def_dec_info * next_for_func; /* -> to rest of chain for func name */ | |
339 | unsigned int f_list_count; /* count of formals lists we expect */ | |
340 | char prototyped; /* = 0 means already prototyped */ | |
341 | #ifndef UNPROTOIZE | |
342 | const f_list_chain_item * f_list_chain; /* -> chain of formals lists */ | |
343 | const def_dec_info * definition; /* -> def/dec containing related def */ | |
6dc42e49 | 344 | char is_static; /* = 0 means visibility is "extern" */ |
5f8037c4 RS |
345 | char is_implicit; /* != 0 for implicit func decl's */ |
346 | char written; /* != 0 means written for implicit */ | |
a019653e | 347 | #else /* !defined (UNPROTOIZE) */ |
5f8037c4 | 348 | const char * formal_names; /* -> to list of names of formals */ |
6dc42e49 | 349 | const char * formal_decls; /* -> to string of formal declarations */ |
a019653e | 350 | #endif /* !defined (UNPROTOIZE) */ |
5f8037c4 RS |
351 | }; |
352 | ||
a2b22788 | 353 | /* Pointer to the tail component of the filename by which this program was |
5f8037c4 RS |
354 | invoked. Used everywhere in error and warning messages. */ |
355 | ||
356 | static const char *pname; | |
357 | ||
40f03658 | 358 | /* Error counter. Will be nonzero if we should give up at the next convenient |
5f8037c4 RS |
359 | stopping point. */ |
360 | ||
361 | static int errors = 0; | |
362 | ||
363 | /* Option flags. */ | |
1351ec82 RS |
364 | /* ??? The variables are not marked static because some of them have |
365 | the same names as gcc variables declared in options.h. */ | |
5f8037c4 RS |
366 | /* ??? These comments should say what the flag mean as well as the options |
367 | that set them. */ | |
368 | ||
a019653e RS |
369 | /* File name to use for running gcc. Allows GCC 2 to be named |
370 | something other than gcc. */ | |
8241a41f | 371 | static const char *compiler_file_name = "gcc"; |
ef91d7e2 | 372 | |
1351ec82 RS |
373 | int version_flag = 0; /* Print our version number. */ |
374 | int quiet_flag = 0; /* Don't print messages normally. */ | |
375 | int nochange_flag = 0; /* Don't convert, just say what files | |
376 | we would have converted. */ | |
377 | int nosave_flag = 0; /* Don't save the old version. */ | |
378 | int keep_flag = 0; /* Don't delete the .X files. */ | |
34e56753 | 379 | static const char ** compile_params = 0; /* Option string for gcc. */ |
5f8037c4 | 380 | #ifdef UNPROTOIZE |
34e56753 RS |
381 | static const char *indent_string = " "; /* Indentation for newly |
382 | inserted parm decls. */ | |
a019653e | 383 | #else /* !defined (UNPROTOIZE) */ |
1351ec82 RS |
384 | int local_flag = 0; /* Insert new local decls (when?). */ |
385 | int global_flag = 0; /* set by -g option */ | |
386 | int cplusplus_flag = 0; /* Rename converted files to *.C. */ | |
0f41302f | 387 | static const char *nondefault_syscalls_dir = 0; /* Dir to look for |
34e56753 | 388 | SYSCALLS.c.X in. */ |
a019653e | 389 | #endif /* !defined (UNPROTOIZE) */ |
5f8037c4 | 390 | |
bd0725f3 RS |
391 | /* An index into the compile_params array where we should insert the source |
392 | file name when we are ready to exec the C compiler. A zero value indicates | |
a019653e | 393 | that we have not yet called munge_compile_params. */ |
5f8037c4 | 394 | |
bd0725f3 RS |
395 | static int input_file_name_index = 0; |
396 | ||
397 | /* An index into the compile_params array where we should insert the filename | |
398 | for the aux info file, when we run the C compiler. */ | |
399 | static int aux_info_file_name_index = 0; | |
5f8037c4 RS |
400 | |
401 | /* Count of command line arguments which were "filename" arguments. */ | |
402 | ||
a2b22788 | 403 | static int n_base_source_files = 0; |
5f8037c4 RS |
404 | |
405 | /* Points to a malloc'ed list of pointers to all of the filenames of base | |
406 | source files which were specified on the command line. */ | |
407 | ||
a2b22788 | 408 | static const char **base_source_filenames; |
5f8037c4 RS |
409 | |
410 | /* Line number of the line within the current aux_info file that we | |
411 | are currently processing. Used for error messages in case the prototypes | |
412 | info file is corrupted somehow. */ | |
413 | ||
414 | static int current_aux_info_lineno; | |
415 | ||
416 | /* Pointer to the name of the source file currently being converted. */ | |
417 | ||
a2b22788 | 418 | static const char *convert_filename; |
5f8037c4 RS |
419 | |
420 | /* Pointer to relative root string (taken from aux_info file) which indicates | |
421 | where directory the user was in when he did the compilation step that | |
0f41302f | 422 | produced the containing aux_info file. */ |
5f8037c4 | 423 | |
a2b22788 | 424 | static const char *invocation_filename; |
5f8037c4 RS |
425 | |
426 | /* Pointer to the base of the input buffer that holds the original text for the | |
427 | source file currently being converted. */ | |
428 | ||
429 | static const char *orig_text_base; | |
430 | ||
431 | /* Pointer to the byte just beyond the end of the input buffer that holds the | |
432 | original text for the source file currently being converted. */ | |
433 | ||
434 | static const char *orig_text_limit; | |
435 | ||
436 | /* Pointer to the base of the input buffer that holds the cleaned text for the | |
437 | source file currently being converted. */ | |
438 | ||
439 | static const char *clean_text_base; | |
440 | ||
441 | /* Pointer to the byte just beyond the end of the input buffer that holds the | |
442 | cleaned text for the source file currently being converted. */ | |
443 | ||
444 | static const char *clean_text_limit; | |
445 | ||
446 | /* Pointer to the last byte in the cleaned text buffer that we have already | |
447 | (virtually) copied to the output buffer (or decided to ignore). */ | |
448 | ||
449 | static const char * clean_read_ptr; | |
450 | ||
451 | /* Pointer to the base of the output buffer that holds the replacement text | |
452 | for the source file currently being converted. */ | |
453 | ||
454 | static char *repl_text_base; | |
455 | ||
456 | /* Pointer to the byte just beyond the end of the output buffer that holds the | |
457 | replacement text for the source file currently being converted. */ | |
458 | ||
459 | static char *repl_text_limit; | |
460 | ||
461 | /* Pointer to the last byte which has been stored into the output buffer. | |
462 | The next byte to be stored should be stored just past where this points | |
463 | to. */ | |
464 | ||
465 | static char * repl_write_ptr; | |
466 | ||
467 | /* Pointer into the cleaned text buffer for the source file we are currently | |
468 | converting. This points to the first character of the line that we last | |
a019653e | 469 | did a "seek_to_line" to (see below). */ |
5f8037c4 RS |
470 | |
471 | static const char *last_known_line_start; | |
472 | ||
473 | /* Number of the line (in the cleaned text buffer) that we last did a | |
a019653e | 474 | "seek_to_line" to. Will be one if we just read a new source file |
5f8037c4 RS |
475 | into the cleaned text buffer. */ |
476 | ||
477 | static int last_known_line_number; | |
478 | ||
a2b22788 | 479 | /* The filenames hash table. */ |
5f8037c4 | 480 | |
a2b22788 | 481 | static hash_table filename_primary; |
5f8037c4 RS |
482 | |
483 | /* The function names hash table. */ | |
484 | ||
485 | static hash_table function_name_primary; | |
486 | ||
487 | /* The place to keep the recovery address which is used only in cases where | |
488 | we get hopelessly confused by something in the cleaned original text. */ | |
489 | ||
490 | static jmp_buf source_confusion_recovery; | |
491 | ||
a2b22788 | 492 | /* A pointer to the current directory filename (used by abspath). */ |
5f8037c4 RS |
493 | |
494 | static char *cwd_buffer; | |
495 | ||
496 | /* A place to save the read pointer until we are sure that an individual | |
497 | attempt at editing will succeed. */ | |
498 | ||
499 | static const char * saved_clean_read_ptr; | |
500 | ||
501 | /* A place to save the write pointer until we are sure that an individual | |
502 | attempt at editing will succeed. */ | |
503 | ||
504 | static char * saved_repl_write_ptr; | |
ab87f8c8 JL |
505 | \f |
506 | /* Translate and output an error message. */ | |
ab87f8c8 | 507 | static void |
4b794eaf | 508 | notice (const char *cmsgid, ...) |
ab87f8c8 | 509 | { |
e34d07f2 KG |
510 | va_list ap; |
511 | ||
4b794eaf JJ |
512 | va_start (ap, cmsgid); |
513 | vfprintf (stderr, _(cmsgid), ap); | |
e34d07f2 | 514 | va_end (ap); |
ab87f8c8 JL |
515 | } |
516 | ||
5f8037c4 | 517 | \f |
5f8037c4 RS |
518 | /* Make a copy of a string INPUT with size SIZE. */ |
519 | ||
520 | static char * | |
439f7bc3 | 521 | savestring (const char *input, unsigned int size) |
5f8037c4 | 522 | { |
703ad42b | 523 | char *output = xmalloc (size + 1); |
5f8037c4 RS |
524 | strcpy (output, input); |
525 | return output; | |
526 | } | |
527 | ||
5f8037c4 | 528 | \f |
5f8037c4 RS |
529 | /* Make a duplicate of the first N bytes of a given string in a newly |
530 | allocated area. */ | |
531 | ||
532 | static char * | |
439f7bc3 | 533 | dupnstr (const char *s, size_t n) |
5f8037c4 | 534 | { |
703ad42b | 535 | char *ret_val = xmalloc (n + 1); |
5f8037c4 | 536 | |
600ceaa9 | 537 | strncpy (ret_val, s, n); |
5f8037c4 RS |
538 | ret_val[n] = '\0'; |
539 | return ret_val; | |
540 | } | |
5f8037c4 | 541 | \f |
c7bfb646 RS |
542 | /* Read LEN bytes at PTR from descriptor DESC, for file FILENAME, |
543 | retrying if necessary. Return the actual number of bytes read. */ | |
544 | ||
545 | static int | |
439f7bc3 | 546 | safe_read (int desc, void *ptr, int len) |
c7bfb646 RS |
547 | { |
548 | int left = len; | |
549 | while (left > 0) { | |
55abdd3c | 550 | int nchars = read (desc, ptr, left); |
c7bfb646 | 551 | if (nchars < 0) |
c9a8a295 RS |
552 | { |
553 | #ifdef EINTR | |
554 | if (errno == EINTR) | |
555 | continue; | |
556 | #endif | |
557 | return nchars; | |
558 | } | |
c7bfb646 RS |
559 | if (nchars == 0) |
560 | break; | |
f63d1bf7 | 561 | /* Arithmetic on void pointers is a gcc extension. */ |
9c592305 | 562 | ptr = (char *) ptr + nchars; |
c7bfb646 RS |
563 | left -= nchars; |
564 | } | |
565 | return len - left; | |
566 | } | |
567 | ||
568 | /* Write LEN bytes at PTR to descriptor DESC, | |
569 | retrying if necessary, and treating any real error as fatal. */ | |
570 | ||
571 | static void | |
439f7bc3 | 572 | safe_write (int desc, void *ptr, int len, const char *out_fname) |
c7bfb646 RS |
573 | { |
574 | while (len > 0) { | |
55abdd3c | 575 | int written = write (desc, ptr, len); |
c7bfb646 | 576 | if (written < 0) |
c9a8a295 | 577 | { |
e5e809f4 | 578 | int errno_val = errno; |
c9a8a295 | 579 | #ifdef EINTR |
e5e809f4 | 580 | if (errno_val == EINTR) |
c9a8a295 RS |
581 | continue; |
582 | #endif | |
9e637a26 | 583 | notice ("%s: error writing file '%s': %s\n", |
ab87f8c8 | 584 | pname, shortpath (NULL, out_fname), xstrerror (errno_val)); |
c4434aaa | 585 | return; |
c9a8a295 | 586 | } |
f63d1bf7 | 587 | /* Arithmetic on void pointers is a gcc extension. */ |
9c592305 | 588 | ptr = (char *) ptr + written; |
c7bfb646 RS |
589 | len -= written; |
590 | } | |
591 | } | |
592 | \f | |
5f8037c4 RS |
593 | /* Get setup to recover in case the edit we are about to do goes awry. */ |
594 | ||
ffb9f2f1 | 595 | static void |
439f7bc3 | 596 | save_pointers (void) |
5f8037c4 RS |
597 | { |
598 | saved_clean_read_ptr = clean_read_ptr; | |
599 | saved_repl_write_ptr = repl_write_ptr; | |
600 | } | |
601 | ||
602 | /* Call this routine to recover our previous state whenever something looks | |
603 | too confusing in the source code we are trying to edit. */ | |
604 | ||
ffb9f2f1 | 605 | static void |
439f7bc3 | 606 | restore_pointers (void) |
5f8037c4 RS |
607 | { |
608 | clean_read_ptr = saved_clean_read_ptr; | |
609 | repl_write_ptr = saved_repl_write_ptr; | |
610 | } | |
611 | ||
3826a3da | 612 | /* Return true if the given character is a valid identifier character. */ |
5f8037c4 | 613 | |
34e56753 | 614 | static int |
439f7bc3 | 615 | is_id_char (int ch) |
5f8037c4 | 616 | { |
0df6c2c7 | 617 | return (ISIDNUM (ch) || (ch == '$')); |
5f8037c4 RS |
618 | } |
619 | ||
620 | /* Give a message indicating the proper way to invoke this program and then | |
40f03658 | 621 | exit with nonzero status. */ |
5f8037c4 RS |
622 | |
623 | static void | |
439f7bc3 | 624 | usage (void) |
5f8037c4 RS |
625 | { |
626 | #ifdef UNPROTOIZE | |
ab87f8c8 JL |
627 | notice ("%s: usage '%s [ -VqfnkN ] [ -i <istring> ] [ filename ... ]'\n", |
628 | pname, pname); | |
a019653e | 629 | #else /* !defined (UNPROTOIZE) */ |
ab87f8c8 JL |
630 | notice ("%s: usage '%s [ -VqfnkNlgC ] [ -B <dirname> ] [ filename ... ]'\n", |
631 | pname, pname); | |
a019653e | 632 | #endif /* !defined (UNPROTOIZE) */ |
2e3f9f3d | 633 | exit (FATAL_EXIT_CODE); |
5f8037c4 RS |
634 | } |
635 | ||
a2b22788 | 636 | /* Return true if the given filename (assumed to be an absolute filename) |
5f8037c4 RS |
637 | designates a file residing anywhere beneath any one of the "system" |
638 | include directories. */ | |
639 | ||
640 | static int | |
439f7bc3 | 641 | in_system_include_dir (const char *path) |
5f8037c4 | 642 | { |
83182544 | 643 | const struct default_include *p; |
5f8037c4 | 644 | |
e16acfcd | 645 | gcc_assert (IS_ABSOLUTE_PATH (path)); |
5f8037c4 | 646 | |
75a65e46 | 647 | for (p = cpp_include_defaults; p->fname; p++) |
5f8037c4 | 648 | if (!strncmp (path, p->fname, strlen (p->fname)) |
ee77eda5 | 649 | && IS_DIR_SEPARATOR (path[strlen (p->fname)])) |
5f8037c4 RS |
650 | return 1; |
651 | return 0; | |
652 | } | |
653 | \f | |
654 | #if 0 | |
a2b22788 | 655 | /* Return true if the given filename designates a file that the user has |
5f8037c4 RS |
656 | read access to and for which the user has write access to the containing |
657 | directory. */ | |
658 | ||
659 | static int | |
660 | file_could_be_converted (const char *path) | |
661 | { | |
703ad42b | 662 | char *const dir_name = alloca (strlen (path) + 1); |
5f8037c4 | 663 | |
ffb9f2f1 | 664 | if (access (path, R_OK)) |
5f8037c4 RS |
665 | return 0; |
666 | ||
667 | { | |
668 | char *dir_last_slash; | |
669 | ||
670 | strcpy (dir_name, path); | |
ee77eda5 MK |
671 | dir_last_slash = strrchr (dir_name, DIR_SEPARATOR); |
672 | #ifdef DIR_SEPARATOR_2 | |
673 | { | |
674 | char *slash; | |
675 | ||
23459e15 KH |
676 | slash = strrchr (dir_last_slash ? dir_last_slash : dir_name, |
677 | DIR_SEPARATOR_2); | |
ee77eda5 MK |
678 | if (slash) |
679 | dir_last_slash = slash; | |
680 | } | |
681 | #endif | |
e16acfcd NS |
682 | gcc_assert (dir_last_slash); |
683 | *dir_last_slash = '\0'; | |
5f8037c4 RS |
684 | } |
685 | ||
ffb9f2f1 | 686 | if (access (path, W_OK)) |
5f8037c4 RS |
687 | return 0; |
688 | ||
689 | return 1; | |
690 | } | |
691 | ||
a2b22788 | 692 | /* Return true if the given filename designates a file that we are allowed |
5f8037c4 RS |
693 | to modify. Files which we should not attempt to modify are (a) "system" |
694 | include files, and (b) files which the user doesn't have write access to, | |
695 | and (c) files which reside in directories which the user doesn't have | |
696 | write access to. Unless requested to be quiet, give warnings about | |
697 | files that we will not try to convert for one reason or another. An | |
698 | exception is made for "system" include files, which we never try to | |
699 | convert and for which we don't issue the usual warnings. */ | |
700 | ||
701 | static int | |
6dc42e49 | 702 | file_normally_convertible (const char *path) |
5f8037c4 RS |
703 | { |
704 | char *const dir_name = alloca (strlen (path) + 1); | |
705 | ||
706 | if (in_system_include_dir (path)) | |
707 | return 0; | |
708 | ||
709 | { | |
710 | char *dir_last_slash; | |
711 | ||
712 | strcpy (dir_name, path); | |
ee77eda5 MK |
713 | dir_last_slash = strrchr (dir_name, DIR_SEPARATOR); |
714 | #ifdef DIR_SEPARATOR_2 | |
715 | { | |
716 | char *slash; | |
717 | ||
23459e15 KH |
718 | slash = strrchr (dir_last_slash ? dir_last_slash : dir_name, |
719 | DIR_SEPARATOR_2); | |
ee77eda5 MK |
720 | if (slash) |
721 | dir_last_slash = slash; | |
722 | } | |
723 | #endif | |
e16acfcd NS |
724 | gcc_assert (dir_last_slash); |
725 | *dir_last_slash = '\0'; | |
5f8037c4 RS |
726 | } |
727 | ||
ffb9f2f1 | 728 | if (access (path, R_OK)) |
5f8037c4 RS |
729 | { |
730 | if (!quiet_flag) | |
9e637a26 | 731 | notice ("%s: warning: no read access for file '%s'\n", |
ab87f8c8 | 732 | pname, shortpath (NULL, path)); |
5f8037c4 RS |
733 | return 0; |
734 | } | |
735 | ||
ffb9f2f1 | 736 | if (access (path, W_OK)) |
5f8037c4 RS |
737 | { |
738 | if (!quiet_flag) | |
9e637a26 | 739 | notice ("%s: warning: no write access for file '%s'\n", |
ab87f8c8 | 740 | pname, shortpath (NULL, path)); |
5f8037c4 RS |
741 | return 0; |
742 | } | |
743 | ||
ffb9f2f1 | 744 | if (access (dir_name, W_OK)) |
5f8037c4 RS |
745 | { |
746 | if (!quiet_flag) | |
9e637a26 | 747 | notice ("%s: warning: no write access for dir containing '%s'\n", |
ab87f8c8 | 748 | pname, shortpath (NULL, path)); |
5f8037c4 RS |
749 | return 0; |
750 | } | |
751 | ||
752 | return 1; | |
753 | } | |
754 | #endif /* 0 */ | |
755 | \f | |
756 | #ifndef UNPROTOIZE | |
757 | ||
758 | /* Return true if the given file_info struct refers to the special SYSCALLS.c.X | |
759 | file. Return false otherwise. */ | |
760 | ||
761 | static int | |
439f7bc3 | 762 | is_syscalls_file (const file_info *fi_p) |
5f8037c4 | 763 | { |
d742f26c RS |
764 | char const *f = fi_p->hash_entry->symbol; |
765 | size_t fl = strlen (f), sysl = sizeof (syscalls_filename) - 1; | |
766 | return sysl <= fl && strcmp (f + fl - sysl, syscalls_filename) == 0; | |
5f8037c4 RS |
767 | } |
768 | ||
a019653e | 769 | #endif /* !defined (UNPROTOIZE) */ |
5f8037c4 RS |
770 | |
771 | /* Check to see if this file will need to have anything done to it on this | |
772 | run. If there is nothing in the given file which both needs conversion | |
773 | and for which we have the necessary stuff to do the conversion, return | |
774 | false. Otherwise, return true. | |
775 | ||
776 | Note that (for protoize) it is only valid to call this function *after* | |
777 | the connections between declarations and definitions have all been made | |
a019653e | 778 | by connect_defs_and_decs. */ |
5f8037c4 RS |
779 | |
780 | static int | |
439f7bc3 | 781 | needs_to_be_converted (const file_info *file_p) |
5f8037c4 RS |
782 | { |
783 | const def_dec_info *ddp; | |
784 | ||
785 | #ifndef UNPROTOIZE | |
786 | ||
787 | if (is_syscalls_file (file_p)) | |
788 | return 0; | |
789 | ||
a019653e | 790 | #endif /* !defined (UNPROTOIZE) */ |
5f8037c4 RS |
791 | |
792 | for (ddp = file_p->defs_decs; ddp; ddp = ddp->next_in_file) | |
793 | ||
794 | if ( | |
795 | ||
796 | #ifndef UNPROTOIZE | |
797 | ||
0f41302f | 798 | /* ... and if we a protoizing and this function is in old style ... */ |
5f8037c4 | 799 | !ddp->prototyped |
0f41302f | 800 | /* ... and if this a definition or is a decl with an associated def ... */ |
5f8037c4 RS |
801 | && (ddp->is_func_def || (!ddp->is_func_def && ddp->definition)) |
802 | ||
a019653e | 803 | #else /* defined (UNPROTOIZE) */ |
5f8037c4 | 804 | |
0f41302f | 805 | /* ... and if we are unprotoizing and this function is in new style ... */ |
5f8037c4 RS |
806 | ddp->prototyped |
807 | ||
a019653e | 808 | #endif /* defined (UNPROTOIZE) */ |
5f8037c4 | 809 | ) |
23459e15 KH |
810 | /* ... then the containing file needs converting. */ |
811 | return -1; | |
5f8037c4 RS |
812 | return 0; |
813 | } | |
814 | ||
815 | /* Return 1 if the file name NAME is in a directory | |
816 | that should be converted. */ | |
817 | ||
818 | static int | |
439f7bc3 | 819 | directory_specified_p (const char *name) |
5f8037c4 RS |
820 | { |
821 | struct string_list *p; | |
822 | ||
823 | for (p = directory_list; p; p = p->next) | |
824 | if (!strncmp (name, p->name, strlen (p->name)) | |
ee77eda5 | 825 | && IS_DIR_SEPARATOR (name[strlen (p->name)])) |
37114d0d RS |
826 | { |
827 | const char *q = name + strlen (p->name) + 1; | |
828 | ||
829 | /* If there are more slashes, it's in a subdir, so | |
830 | this match doesn't count. */ | |
ee77eda5 MK |
831 | while (*q++) |
832 | if (IS_DIR_SEPARATOR (*(q-1))) | |
37114d0d RS |
833 | goto lose; |
834 | return 1; | |
835 | ||
836 | lose: ; | |
837 | } | |
5f8037c4 RS |
838 | |
839 | return 0; | |
840 | } | |
841 | ||
842 | /* Return 1 if the file named NAME should be excluded from conversion. */ | |
843 | ||
844 | static int | |
439f7bc3 | 845 | file_excluded_p (const char *name) |
5f8037c4 RS |
846 | { |
847 | struct string_list *p; | |
848 | int len = strlen (name); | |
849 | ||
850 | for (p = exclude_list; p; p = p->next) | |
851 | if (!strcmp (name + len - strlen (p->name), p->name) | |
ee77eda5 | 852 | && IS_DIR_SEPARATOR (name[len - strlen (p->name) - 1])) |
5f8037c4 RS |
853 | return 1; |
854 | ||
855 | return 0; | |
856 | } | |
857 | ||
858 | /* Construct a new element of a string_list. | |
859 | STRING is the new element value, and REST holds the remaining elements. */ | |
860 | ||
861 | static struct string_list * | |
439f7bc3 | 862 | string_list_cons (const char *string, struct string_list *rest) |
5f8037c4 | 863 | { |
703ad42b | 864 | struct string_list *temp = xmalloc (sizeof (struct string_list)); |
34e56753 | 865 | |
5f8037c4 RS |
866 | temp->next = rest; |
867 | temp->name = string; | |
868 | return temp; | |
869 | } | |
870 | \f | |
871 | /* ??? The GNU convention for mentioning function args in its comments | |
872 | is to capitalize them. So change "hash_tab_p" to HASH_TAB_P below. | |
873 | Likewise for all the other functions. */ | |
874 | ||
875 | /* Given a hash table, apply some function to each node in the table. The | |
876 | table to traverse is given as the "hash_tab_p" argument, and the | |
877 | function to be applied to each node in the table is given as "func" | |
878 | argument. */ | |
879 | ||
880 | static void | |
439f7bc3 AJ |
881 | visit_each_hash_node (const hash_table_entry *hash_tab_p, |
882 | void (*func) (const hash_table_entry *)) | |
5f8037c4 RS |
883 | { |
884 | const hash_table_entry *primary; | |
885 | ||
886 | for (primary = hash_tab_p; primary < &hash_tab_p[HASH_TABLE_SIZE]; primary++) | |
887 | if (primary->symbol) | |
888 | { | |
23459e15 | 889 | hash_table_entry *second; |
5f8037c4 | 890 | |
23459e15 KH |
891 | (*func)(primary); |
892 | for (second = primary->hash_next; second; second = second->hash_next) | |
893 | (*func) (second); | |
5f8037c4 RS |
894 | } |
895 | } | |
896 | ||
897 | /* Initialize all of the fields of a new hash table entry, pointed | |
898 | to by the "p" parameter. Note that the space to hold the entry | |
899 | is assumed to have already been allocated before this routine is | |
900 | called. */ | |
901 | ||
902 | static hash_table_entry * | |
439f7bc3 | 903 | add_symbol (hash_table_entry *p, const char *s) |
5f8037c4 RS |
904 | { |
905 | p->hash_next = NULL; | |
ad85216e | 906 | p->symbol = xstrdup (s); |
5f8037c4 RS |
907 | p->ddip = NULL; |
908 | p->fip = NULL; | |
909 | return p; | |
910 | } | |
911 | ||
a2b22788 | 912 | /* Look for a particular function name or filename in the particular |
5f8037c4 RS |
913 | hash table indicated by "hash_tab_p". If the name is not in the |
914 | given hash table, add it. Either way, return a pointer to the | |
915 | hash table entry for the given name. */ | |
916 | ||
917 | static hash_table_entry * | |
439f7bc3 | 918 | lookup (hash_table_entry *hash_tab_p, const char *search_symbol) |
5f8037c4 RS |
919 | { |
920 | int hash_value = 0; | |
921 | const char *search_symbol_char_p = search_symbol; | |
922 | hash_table_entry *p; | |
923 | ||
924 | while (*search_symbol_char_p) | |
925 | hash_value += *search_symbol_char_p++; | |
926 | hash_value &= hash_mask; | |
927 | p = &hash_tab_p[hash_value]; | |
928 | if (! p->symbol) | |
929 | return add_symbol (p, search_symbol); | |
930 | if (!strcmp (p->symbol, search_symbol)) | |
931 | return p; | |
932 | while (p->hash_next) | |
933 | { | |
934 | p = p->hash_next; | |
935 | if (!strcmp (p->symbol, search_symbol)) | |
23459e15 | 936 | return p; |
5f8037c4 | 937 | } |
703ad42b | 938 | p->hash_next = xmalloc (sizeof (hash_table_entry)); |
5f8037c4 RS |
939 | p = p->hash_next; |
940 | return add_symbol (p, search_symbol); | |
941 | } | |
942 | \f | |
943 | /* Throw a def/dec record on the junk heap. | |
944 | ||
945 | Also, since we are not using this record anymore, free up all of the | |
946 | stuff it pointed to. */ | |
947 | ||
34e56753 | 948 | static void |
439f7bc3 | 949 | free_def_dec (def_dec_info *p) |
5f8037c4 | 950 | { |
fad205ff | 951 | free ((NONCONST void *) p->ansi_decl); |
5f8037c4 RS |
952 | |
953 | #ifndef UNPROTOIZE | |
954 | { | |
955 | const f_list_chain_item * curr; | |
956 | const f_list_chain_item * next; | |
957 | ||
958 | for (curr = p->f_list_chain; curr; curr = next) | |
959 | { | |
23459e15 | 960 | next = curr->chain_next; |
fad205ff | 961 | free ((NONCONST void *) curr); |
5f8037c4 RS |
962 | } |
963 | } | |
a019653e | 964 | #endif /* !defined (UNPROTOIZE) */ |
5f8037c4 | 965 | |
ad85216e | 966 | free (p); |
5f8037c4 RS |
967 | } |
968 | ||
75b80704 | 969 | /* Unexpand as many macro symbols as we can find. |
5f8037c4 RS |
970 | |
971 | If the given line must be unexpanded, make a copy of it in the heap and | |
972 | return a pointer to the unexpanded copy. Otherwise return NULL. */ | |
973 | ||
974 | static char * | |
439f7bc3 | 975 | unexpand_if_needed (const char *aux_info_line) |
5f8037c4 RS |
976 | { |
977 | static char *line_buf = 0; | |
978 | static int line_buf_size = 0; | |
0f41302f | 979 | const unexpansion *unexp_p; |
5f8037c4 RS |
980 | int got_unexpanded = 0; |
981 | const char *s; | |
982 | char *copy_p = line_buf; | |
983 | ||
984 | if (line_buf == 0) | |
985 | { | |
986 | line_buf_size = 1024; | |
703ad42b | 987 | line_buf = xmalloc (line_buf_size); |
5f8037c4 RS |
988 | } |
989 | ||
990 | copy_p = line_buf; | |
991 | ||
992 | /* Make a copy of the input string in line_buf, expanding as necessary. */ | |
993 | ||
994 | for (s = aux_info_line; *s != '\n'; ) | |
995 | { | |
996 | for (unexp_p = unexpansions; unexp_p->expanded; unexp_p++) | |
23459e15 KH |
997 | { |
998 | const char *in_p = unexp_p->expanded; | |
999 | size_t len = strlen (in_p); | |
5f8037c4 | 1000 | |
23459e15 KH |
1001 | if (*s == *in_p && !strncmp (s, in_p, len) && !is_id_char (s[len])) |
1002 | { | |
5f8037c4 | 1003 | int size = strlen (unexp_p->contracted); |
23459e15 | 1004 | got_unexpanded = 1; |
5f8037c4 RS |
1005 | if (copy_p + size - line_buf >= line_buf_size) |
1006 | { | |
1007 | int offset = copy_p - line_buf; | |
1008 | line_buf_size *= 2; | |
1009 | line_buf_size += size; | |
703ad42b | 1010 | line_buf = xrealloc (line_buf, line_buf_size); |
5f8037c4 RS |
1011 | copy_p = line_buf + offset; |
1012 | } | |
23459e15 KH |
1013 | strcpy (copy_p, unexp_p->contracted); |
1014 | copy_p += size; | |
5f8037c4 | 1015 | |
23459e15 KH |
1016 | /* Assume that there will not be another replacement required |
1017 | within the text just replaced. */ | |
5f8037c4 | 1018 | |
23459e15 KH |
1019 | s += len; |
1020 | goto continue_outer; | |
1021 | } | |
1022 | } | |
5f8037c4 RS |
1023 | if (copy_p - line_buf == line_buf_size) |
1024 | { | |
1025 | int offset = copy_p - line_buf; | |
1026 | line_buf_size *= 2; | |
703ad42b | 1027 | line_buf = xrealloc (line_buf, line_buf_size); |
5f8037c4 RS |
1028 | copy_p = line_buf + offset; |
1029 | } | |
1030 | *copy_p++ = *s++; | |
1031 | continue_outer: ; | |
1032 | } | |
1033 | if (copy_p + 2 - line_buf >= line_buf_size) | |
1034 | { | |
1035 | int offset = copy_p - line_buf; | |
1036 | line_buf_size *= 2; | |
703ad42b | 1037 | line_buf = xrealloc (line_buf, line_buf_size); |
5f8037c4 RS |
1038 | copy_p = line_buf + offset; |
1039 | } | |
1040 | *copy_p++ = '\n'; | |
8fc5db4e | 1041 | *copy_p = '\0'; |
5f8037c4 | 1042 | |
8fc5db4e | 1043 | return (got_unexpanded ? savestring (line_buf, copy_p - line_buf) : 0); |
5f8037c4 RS |
1044 | } |
1045 | \f | |
a2b22788 RS |
1046 | /* Return the absolutized filename for the given relative |
1047 | filename. Note that if that filename is already absolute, it may | |
5f8037c4 RS |
1048 | still be returned in a modified form because this routine also |
1049 | eliminates redundant slashes and single dots and eliminates double | |
a2b22788 RS |
1050 | dots to get a shortest possible filename from the given input |
1051 | filename. The absolutization of relative filenames is made by | |
1052 | assuming that the given filename is to be taken as relative to | |
5f8037c4 RS |
1053 | the first argument (cwd) or to the current directory if cwd is |
1054 | NULL. */ | |
1055 | ||
1056 | static char * | |
439f7bc3 | 1057 | abspath (const char *cwd, const char *rel_filename) |
5f8037c4 RS |
1058 | { |
1059 | /* Setup the current working directory as needed. */ | |
83182544 | 1060 | const char *const cwd2 = (cwd) ? cwd : cwd_buffer; |
703ad42b | 1061 | char *const abs_buffer = alloca (strlen (cwd2) + strlen (rel_filename) + 2); |
5f8037c4 RS |
1062 | char *endp = abs_buffer; |
1063 | char *outp, *inp; | |
1064 | ||
d45cf215 | 1065 | /* Copy the filename (possibly preceded by the current working |
5f8037c4 RS |
1066 | directory name) into the absolutization buffer. */ |
1067 | ||
1068 | { | |
1069 | const char *src_p; | |
1070 | ||
3dce1408 | 1071 | if (! IS_ABSOLUTE_PATH (rel_filename)) |
5f8037c4 | 1072 | { |
23459e15 KH |
1073 | src_p = cwd2; |
1074 | while ((*endp++ = *src_p++)) | |
1075 | continue; | |
1076 | *(endp-1) = DIR_SEPARATOR; /* overwrite null */ | |
5f8037c4 | 1077 | } |
ee77eda5 MK |
1078 | #ifdef HAVE_DOS_BASED_FILE_SYSTEM |
1079 | else if (IS_DIR_SEPARATOR (rel_filename[0])) | |
1080 | { | |
23459e15 KH |
1081 | /* A path starting with a directory separator is considered absolute |
1082 | for dos based filesystems, but it's really not -- it's just the | |
ee77eda5 MK |
1083 | convention used throughout GCC and it works. However, in this |
1084 | case, we still need to prepend the drive spec from cwd_buffer. */ | |
1085 | *endp++ = cwd2[0]; | |
1086 | *endp++ = cwd2[1]; | |
1087 | } | |
1088 | #endif | |
a2b22788 | 1089 | src_p = rel_filename; |
51723711 | 1090 | while ((*endp++ = *src_p++)) |
5f8037c4 | 1091 | continue; |
5f8037c4 RS |
1092 | } |
1093 | ||
1094 | /* Now make a copy of abs_buffer into abs_buffer, shortening the | |
a2b22788 | 1095 | filename (by taking out slashes and dots) as we go. */ |
5f8037c4 RS |
1096 | |
1097 | outp = inp = abs_buffer; | |
1098 | *outp++ = *inp++; /* copy first slash */ | |
8ebf19db | 1099 | #if defined (apollo) || defined (_WIN32) || defined (__INTERIX) |
ee77eda5 | 1100 | if (IS_DIR_SEPARATOR (inp[0])) |
d742f26c RS |
1101 | *outp++ = *inp++; /* copy second slash */ |
1102 | #endif | |
5f8037c4 RS |
1103 | for (;;) |
1104 | { | |
1105 | if (!inp[0]) | |
23459e15 | 1106 | break; |
ee77eda5 | 1107 | else if (IS_DIR_SEPARATOR (inp[0]) && IS_DIR_SEPARATOR (outp[-1])) |
23459e15 KH |
1108 | { |
1109 | inp++; | |
1110 | continue; | |
1111 | } | |
ee77eda5 | 1112 | else if (inp[0] == '.' && IS_DIR_SEPARATOR (outp[-1])) |
23459e15 KH |
1113 | { |
1114 | if (!inp[1]) | |
1115 | break; | |
1116 | else if (IS_DIR_SEPARATOR (inp[1])) | |
1117 | { | |
1118 | inp += 2; | |
1119 | continue; | |
1120 | } | |
1121 | else if ((inp[1] == '.') && (inp[2] == 0 | |
ee77eda5 | 1122 | || IS_DIR_SEPARATOR (inp[2]))) |
23459e15 KH |
1123 | { |
1124 | inp += (IS_DIR_SEPARATOR (inp[2])) ? 3 : 2; | |
1125 | outp -= 2; | |
1126 | while (outp >= abs_buffer && ! IS_DIR_SEPARATOR (*outp)) | |
1127 | outp--; | |
1128 | if (outp < abs_buffer) | |
1129 | { | |
1130 | /* Catch cases like /.. where we try to backup to a | |
1131 | point above the absolute root of the logical file | |
1132 | system. */ | |
1133 | ||
1134 | notice ("%s: invalid file name: %s\n", | |
1135 | pname, rel_filename); | |
1136 | exit (FATAL_EXIT_CODE); | |
1137 | } | |
1138 | *++outp = '\0'; | |
1139 | continue; | |
1140 | } | |
1141 | } | |
5f8037c4 RS |
1142 | *outp++ = *inp++; |
1143 | } | |
1144 | ||
1145 | /* On exit, make sure that there is a trailing null, and make sure that | |
1146 | the last character of the returned string is *not* a slash. */ | |
1147 | ||
1148 | *outp = '\0'; | |
ee77eda5 | 1149 | if (IS_DIR_SEPARATOR (outp[-1])) |
5f8037c4 RS |
1150 | *--outp = '\0'; |
1151 | ||
1152 | /* Make a copy (in the heap) of the stuff left in the absolutization | |
1153 | buffer and return a pointer to the copy. */ | |
1154 | ||
8fc5db4e | 1155 | return savestring (abs_buffer, outp - abs_buffer); |
5f8037c4 RS |
1156 | } |
1157 | \f | |
a2b22788 | 1158 | /* Given a filename (and possibly a directory name from which the filename |
5f8037c4 | 1159 | is relative) return a string which is the shortest possible |
a2b22788 | 1160 | equivalent for the corresponding full (absolutized) filename. The |
5f8037c4 | 1161 | shortest possible equivalent may be constructed by converting the |
a2b22788 RS |
1162 | absolutized filename to be a relative filename (i.e. relative to |
1163 | the actual current working directory). However if a relative filename | |
1164 | is longer, then the full absolute filename is returned. | |
5f8037c4 RS |
1165 | |
1166 | KNOWN BUG: | |
1167 | ||
a2b22788 RS |
1168 | Note that "simple-minded" conversion of any given type of filename (either |
1169 | relative or absolute) may not result in a valid equivalent filename if any | |
1170 | subpart of the original filename is actually a symbolic link. */ | |
5f8037c4 RS |
1171 | |
1172 | static const char * | |
439f7bc3 | 1173 | shortpath (const char *cwd, const char *filename) |
5f8037c4 RS |
1174 | { |
1175 | char *rel_buffer; | |
1176 | char *rel_buf_p; | |
1177 | char *cwd_p = cwd_buffer; | |
1178 | char *path_p; | |
1179 | int unmatched_slash_count = 0; | |
d742f26c | 1180 | size_t filename_len = strlen (filename); |
5f8037c4 | 1181 | |
a2b22788 | 1182 | path_p = abspath (cwd, filename); |
703ad42b | 1183 | rel_buf_p = rel_buffer = xmalloc (filename_len); |
5f8037c4 | 1184 | |
ee77eda5 | 1185 | while (*cwd_p && IS_SAME_PATH_CHAR (*cwd_p, *path_p)) |
5f8037c4 RS |
1186 | { |
1187 | cwd_p++; | |
1188 | path_p++; | |
1189 | } | |
ee77eda5 | 1190 | if (!*cwd_p && (!*path_p || IS_DIR_SEPARATOR (*path_p))) |
5f8037c4 | 1191 | { |
ee77eda5 | 1192 | /* whole pwd matched */ |
5f8037c4 | 1193 | if (!*path_p) /* input *is* the current path! */ |
23459e15 | 1194 | return "."; |
5f8037c4 | 1195 | else |
23459e15 | 1196 | return ++path_p; |
5f8037c4 RS |
1197 | } |
1198 | else | |
1199 | { | |
1200 | if (*path_p) | |
23459e15 KH |
1201 | { |
1202 | --cwd_p; | |
1203 | --path_p; | |
1204 | while (! IS_DIR_SEPARATOR (*cwd_p)) /* backup to last slash */ | |
1205 | { | |
1206 | --cwd_p; | |
1207 | --path_p; | |
1208 | } | |
1209 | cwd_p++; | |
1210 | path_p++; | |
1211 | unmatched_slash_count++; | |
1212 | } | |
526fef40 RS |
1213 | |
1214 | /* Find out how many directory levels in cwd were *not* matched. */ | |
ee77eda5 | 1215 | while (*cwd_p++) |
23459e15 | 1216 | if (IS_DIR_SEPARATOR (*(cwd_p-1))) |
526fef40 RS |
1217 | unmatched_slash_count++; |
1218 | ||
1219 | /* Now we know how long the "short name" will be. | |
1220 | Reject it if longer than the input. */ | |
1221 | if (unmatched_slash_count * 3 + strlen (path_p) >= filename_len) | |
1222 | return filename; | |
1223 | ||
1224 | /* For each of them, put a `../' at the beginning of the short name. */ | |
5f8037c4 | 1225 | while (unmatched_slash_count--) |
23459e15 | 1226 | { |
526fef40 RS |
1227 | /* Give up if the result gets to be longer |
1228 | than the absolute path name. */ | |
d742f26c RS |
1229 | if (rel_buffer + filename_len <= rel_buf_p + 3) |
1230 | return filename; | |
23459e15 KH |
1231 | *rel_buf_p++ = '.'; |
1232 | *rel_buf_p++ = '.'; | |
1233 | *rel_buf_p++ = DIR_SEPARATOR; | |
1234 | } | |
d742f26c | 1235 | |
526fef40 | 1236 | /* Then tack on the unmatched part of the desired file's name. */ |
d742f26c RS |
1237 | do |
1238 | { | |
1239 | if (rel_buffer + filename_len <= rel_buf_p) | |
1240 | return filename; | |
1241 | } | |
51723711 | 1242 | while ((*rel_buf_p++ = *path_p++)); |
d742f26c | 1243 | |
5f8037c4 | 1244 | --rel_buf_p; |
ee77eda5 | 1245 | if (IS_DIR_SEPARATOR (*(rel_buf_p-1))) |
23459e15 | 1246 | *--rel_buf_p = '\0'; |
5f8037c4 RS |
1247 | return rel_buffer; |
1248 | } | |
5f8037c4 RS |
1249 | } |
1250 | \f | |
a2b22788 | 1251 | /* Lookup the given filename in the hash table for filenames. If it is a |
5f8037c4 | 1252 | new one, then the hash table info pointer will be null. In this case, |
a2b22788 | 1253 | we create a new file_info record to go with the filename, and we initialize |
5f8037c4 RS |
1254 | that record with some reasonable values. */ |
1255 | ||
8241a41f RS |
1256 | /* FILENAME was const, but that causes a warning on AIX when calling stat. |
1257 | That is probably a bug in AIX, but might as well avoid the warning. */ | |
1258 | ||
5f8037c4 | 1259 | static file_info * |
439f7bc3 | 1260 | find_file (const char *filename, int do_not_stat) |
5f8037c4 RS |
1261 | { |
1262 | hash_table_entry *hash_entry_p; | |
1263 | ||
a2b22788 | 1264 | hash_entry_p = lookup (filename_primary, filename); |
5f8037c4 RS |
1265 | if (hash_entry_p->fip) |
1266 | return hash_entry_p->fip; | |
1267 | else | |
1268 | { | |
1269 | struct stat stat_buf; | |
703ad42b | 1270 | file_info *file_p = xmalloc (sizeof (file_info)); |
5f8037c4 RS |
1271 | |
1272 | /* If we cannot get status on any given source file, give a warning | |
23459e15 | 1273 | and then just set its time of last modification to infinity. */ |
5f8037c4 RS |
1274 | |
1275 | if (do_not_stat) | |
23459e15 | 1276 | stat_buf.st_mtime = (time_t) 0; |
5f8037c4 | 1277 | else |
23459e15 KH |
1278 | { |
1279 | if (stat (filename, &stat_buf) == -1) | |
1280 | { | |
e5e809f4 | 1281 | int errno_val = errno; |
23459e15 | 1282 | notice ("%s: %s: can't get status: %s\n", |
ab87f8c8 JL |
1283 | pname, shortpath (NULL, filename), |
1284 | xstrerror (errno_val)); | |
23459e15 KH |
1285 | stat_buf.st_mtime = (time_t) -1; |
1286 | } | |
1287 | } | |
5f8037c4 RS |
1288 | |
1289 | hash_entry_p->fip = file_p; | |
1290 | file_p->hash_entry = hash_entry_p; | |
1291 | file_p->defs_decs = NULL; | |
1292 | file_p->mtime = stat_buf.st_mtime; | |
1293 | return file_p; | |
1294 | } | |
1295 | } | |
1296 | ||
1297 | /* Generate a fatal error because some part of the aux_info file is | |
1298 | messed up. */ | |
1299 | ||
1300 | static void | |
439f7bc3 | 1301 | aux_info_corrupted (void) |
5f8037c4 | 1302 | { |
ab87f8c8 JL |
1303 | notice ("\n%s: fatal error: aux info file corrupted at line %d\n", |
1304 | pname, current_aux_info_lineno); | |
2e3f9f3d | 1305 | exit (FATAL_EXIT_CODE); |
5f8037c4 RS |
1306 | } |
1307 | ||
1308 | /* ??? This comment is vague. Say what the condition is for. */ | |
a019653e | 1309 | /* Check to see that a condition is true. This is kind of like an assert. */ |
5f8037c4 | 1310 | |
34e56753 | 1311 | static void |
439f7bc3 | 1312 | check_aux_info (int cond) |
5f8037c4 RS |
1313 | { |
1314 | if (! cond) | |
1315 | aux_info_corrupted (); | |
1316 | } | |
1317 | ||
1318 | /* Given a pointer to the closing right parenthesis for a particular formals | |
858a47b1 | 1319 | list (in an aux_info file) find the corresponding left parenthesis and |
5f8037c4 RS |
1320 | return a pointer to it. */ |
1321 | ||
1322 | static const char * | |
439f7bc3 | 1323 | find_corresponding_lparen (const char *p) |
5f8037c4 RS |
1324 | { |
1325 | const char *q; | |
1326 | int paren_depth; | |
1327 | ||
1328 | for (paren_depth = 1, q = p-1; paren_depth; q--) | |
1329 | { | |
1330 | switch (*q) | |
23459e15 KH |
1331 | { |
1332 | case ')': | |
1333 | paren_depth++; | |
1334 | break; | |
1335 | case '(': | |
1336 | paren_depth--; | |
1337 | break; | |
1338 | } | |
5f8037c4 RS |
1339 | } |
1340 | return ++q; | |
1341 | } | |
1342 | \f | |
1343 | /* Given a line from an aux info file, and a time at which the aux info | |
1344 | file it came from was created, check to see if the item described in | |
1345 | the line comes from a file which has been modified since the aux info | |
40f03658 | 1346 | file was created. If so, return nonzero, else return zero. */ |
5f8037c4 RS |
1347 | |
1348 | static int | |
439f7bc3 | 1349 | referenced_file_is_newer (const char *l, time_t aux_info_mtime) |
5f8037c4 RS |
1350 | { |
1351 | const char *p; | |
1352 | file_info *fi_p; | |
1353 | char *filename; | |
1354 | ||
1355 | check_aux_info (l[0] == '/'); | |
1356 | check_aux_info (l[1] == '*'); | |
1357 | check_aux_info (l[2] == ' '); | |
1358 | ||
1359 | { | |
1360 | const char *filename_start = p = l + 3; | |
1361 | ||
ee77eda5 MK |
1362 | while (*p != ':' |
1363 | #ifdef HAVE_DOS_BASED_FILE_SYSTEM | |
23459e15 | 1364 | || (*p == ':' && *p && *(p+1) && IS_DIR_SEPARATOR (*(p+1))) |
ee77eda5 | 1365 | #endif |
23459e15 | 1366 | ) |
5f8037c4 | 1367 | p++; |
703ad42b | 1368 | filename = alloca ((size_t) (p - filename_start) + 1); |
5f8037c4 RS |
1369 | strncpy (filename, filename_start, (size_t) (p - filename_start)); |
1370 | filename[p-filename_start] = '\0'; | |
1371 | } | |
1372 | ||
1373 | /* Call find_file to find the file_info record associated with the file | |
1374 | which contained this particular def or dec item. Note that this call | |
1375 | may cause a new file_info record to be created if this is the first time | |
1376 | that we have ever known about this particular file. */ | |
1377 | ||
a2b22788 | 1378 | fi_p = find_file (abspath (invocation_filename, filename), 0); |
5f8037c4 RS |
1379 | |
1380 | return (fi_p->mtime > aux_info_mtime); | |
1381 | } | |
1382 | \f | |
1383 | /* Given a line of info from the aux_info file, create a new | |
1384 | def_dec_info record to remember all of the important information about | |
1385 | a function definition or declaration. | |
1386 | ||
1387 | Link this record onto the list of such records for the particular file in | |
d45cf215 | 1388 | which it occurred in proper (descending) line number order (for now). |
5f8037c4 RS |
1389 | |
1390 | If there is an identical record already on the list for the file, throw | |
1391 | this one away. Doing so takes care of the (useless and troublesome) | |
1392 | duplicates which are bound to crop up due to multiple inclusions of any | |
1393 | given individual header file. | |
1394 | ||
1395 | Finally, link the new def_dec record onto the list of such records | |
1396 | pertaining to this particular function name. */ | |
1397 | ||
1398 | static void | |
439f7bc3 | 1399 | save_def_or_dec (const char *l, int is_syscalls) |
5f8037c4 RS |
1400 | { |
1401 | const char *p; | |
1402 | const char *semicolon_p; | |
703ad42b | 1403 | def_dec_info *def_dec_p = xmalloc (sizeof (def_dec_info)); |
5f8037c4 RS |
1404 | |
1405 | #ifndef UNPROTOIZE | |
1406 | def_dec_p->written = 0; | |
a019653e | 1407 | #endif /* !defined (UNPROTOIZE) */ |
5f8037c4 RS |
1408 | |
1409 | /* Start processing the line by picking off 5 pieces of information from | |
1410 | the left hand end of the line. These are filename, line number, | |
1411 | new/old/implicit flag (new = ANSI prototype format), definition or | |
1412 | declaration flag, and extern/static flag). */ | |
1413 | ||
1414 | check_aux_info (l[0] == '/'); | |
1415 | check_aux_info (l[1] == '*'); | |
1416 | check_aux_info (l[2] == ' '); | |
1417 | ||
1418 | { | |
1419 | const char *filename_start = p = l + 3; | |
1420 | char *filename; | |
1421 | ||
ee77eda5 MK |
1422 | while (*p != ':' |
1423 | #ifdef HAVE_DOS_BASED_FILE_SYSTEM | |
23459e15 | 1424 | || (*p == ':' && *p && *(p+1) && IS_DIR_SEPARATOR (*(p+1))) |
ee77eda5 | 1425 | #endif |
23459e15 | 1426 | ) |
5f8037c4 | 1427 | p++; |
703ad42b | 1428 | filename = alloca ((size_t) (p - filename_start) + 1); |
5f8037c4 RS |
1429 | strncpy (filename, filename_start, (size_t) (p - filename_start)); |
1430 | filename[p-filename_start] = '\0'; | |
1431 | ||
1432 | /* Call find_file to find the file_info record associated with the file | |
1433 | which contained this particular def or dec item. Note that this call | |
1434 | may cause a new file_info record to be created if this is the first time | |
1435 | that we have ever known about this particular file. | |
23459e15 | 1436 | |
a2b22788 | 1437 | Note that we started out by forcing all of the base source file names |
5f8037c4 | 1438 | (i.e. the names of the aux_info files with the .X stripped off) into the |
a2b22788 RS |
1439 | filenames hash table, and we simultaneously setup file_info records for |
1440 | all of these base file names (even if they may be useless later). | |
1441 | The file_info records for all of these "base" file names (properly) | |
5f8037c4 | 1442 | act as file_info records for the "original" (i.e. un-included) files |
bd0725f3 | 1443 | which were submitted to gcc for compilation (when the -aux-info |
5f8037c4 | 1444 | option was used). */ |
23459e15 | 1445 | |
a2b22788 | 1446 | def_dec_p->file = find_file (abspath (invocation_filename, filename), is_syscalls); |
5f8037c4 RS |
1447 | } |
1448 | ||
1449 | { | |
1450 | const char *line_number_start = ++p; | |
1451 | char line_number[10]; | |
1452 | ||
ee77eda5 MK |
1453 | while (*p != ':' |
1454 | #ifdef HAVE_DOS_BASED_FILE_SYSTEM | |
23459e15 | 1455 | || (*p == ':' && *p && *(p+1) && IS_DIR_SEPARATOR (*(p+1))) |
ee77eda5 | 1456 | #endif |
23459e15 | 1457 | ) |
5f8037c4 RS |
1458 | p++; |
1459 | strncpy (line_number, line_number_start, (size_t) (p - line_number_start)); | |
1460 | line_number[p-line_number_start] = '\0'; | |
1461 | def_dec_p->line = atoi (line_number); | |
1462 | } | |
1463 | ||
1464 | /* Check that this record describes a new-style, old-style, or implicit | |
1465 | definition or declaration. */ | |
1466 | ||
0f41302f | 1467 | p++; /* Skip over the `:'. */ |
5f8037c4 RS |
1468 | check_aux_info ((*p == 'N') || (*p == 'O') || (*p == 'I')); |
1469 | ||
1470 | /* Is this a new style (ANSI prototyped) definition or declaration? */ | |
1471 | ||
1472 | def_dec_p->prototyped = (*p == 'N'); | |
1473 | ||
1474 | #ifndef UNPROTOIZE | |
1475 | ||
1476 | /* Is this an implicit declaration? */ | |
1477 | ||
1478 | def_dec_p->is_implicit = (*p == 'I'); | |
1479 | ||
a019653e | 1480 | #endif /* !defined (UNPROTOIZE) */ |
5f8037c4 RS |
1481 | |
1482 | p++; | |
1483 | ||
1484 | check_aux_info ((*p == 'C') || (*p == 'F')); | |
1485 | ||
1486 | /* Is this item a function definition (F) or a declaration (C). Note that | |
1487 | we treat item taken from the syscalls file as though they were function | |
1488 | definitions regardless of what the stuff in the file says. */ | |
1489 | ||
1490 | def_dec_p->is_func_def = ((*p++ == 'F') || is_syscalls); | |
1491 | ||
1492 | #ifndef UNPROTOIZE | |
1493 | def_dec_p->definition = 0; /* Fill this in later if protoizing. */ | |
a019653e | 1494 | #endif /* !defined (UNPROTOIZE) */ |
5f8037c4 RS |
1495 | |
1496 | check_aux_info (*p++ == ' '); | |
1497 | check_aux_info (*p++ == '*'); | |
1498 | check_aux_info (*p++ == '/'); | |
1499 | check_aux_info (*p++ == ' '); | |
1500 | ||
1501 | #ifdef UNPROTOIZE | |
1502 | check_aux_info ((!strncmp (p, "static", 6)) || (!strncmp (p, "extern", 6))); | |
a019653e | 1503 | #else /* !defined (UNPROTOIZE) */ |
5f8037c4 RS |
1504 | if (!strncmp (p, "static", 6)) |
1505 | def_dec_p->is_static = -1; | |
1506 | else if (!strncmp (p, "extern", 6)) | |
1507 | def_dec_p->is_static = 0; | |
1508 | else | |
1509 | check_aux_info (0); /* Didn't find either `extern' or `static'. */ | |
a019653e | 1510 | #endif /* !defined (UNPROTOIZE) */ |
5f8037c4 RS |
1511 | |
1512 | { | |
1513 | const char *ansi_start = p; | |
1514 | ||
1515 | p += 6; /* Pass over the "static" or "extern". */ | |
1516 | ||
1517 | /* We are now past the initial stuff. Search forward from here to find | |
1518 | the terminating semicolon that should immediately follow the entire | |
1519 | ANSI format function declaration. */ | |
1520 | ||
1521 | while (*++p != ';') | |
1522 | continue; | |
1523 | ||
1524 | semicolon_p = p; | |
1525 | ||
1526 | /* Make a copy of the ansi declaration part of the line from the aux_info | |
1527 | file. */ | |
1528 | ||
1529 | def_dec_p->ansi_decl | |
1530 | = dupnstr (ansi_start, (size_t) ((semicolon_p+1) - ansi_start)); | |
5f8037c4 | 1531 | |
0ef8d762 RS |
1532 | /* Backup and point at the final right paren of the final argument list. */ |
1533 | ||
1534 | p--; | |
5f8037c4 | 1535 | |
535e7983 RS |
1536 | #ifndef UNPROTOIZE |
1537 | def_dec_p->f_list_chain = NULL; | |
1538 | #endif /* !defined (UNPROTOIZE) */ | |
1539 | ||
0ef8d762 | 1540 | while (p != ansi_start && (p[-1] == ' ' || p[-1] == '\t')) p--; |
535e7983 | 1541 | if (*p != ')') |
0ef8d762 RS |
1542 | { |
1543 | free_def_dec (def_dec_p); | |
1544 | return; | |
1545 | } | |
1546 | } | |
5f8037c4 RS |
1547 | |
1548 | /* Now isolate a whole set of formal argument lists, one-by-one. Normally, | |
1549 | there will only be one list to isolate, but there could be more. */ | |
1550 | ||
1551 | def_dec_p->f_list_count = 0; | |
1552 | ||
5f8037c4 RS |
1553 | for (;;) |
1554 | { | |
1555 | const char *left_paren_p = find_corresponding_lparen (p); | |
1556 | #ifndef UNPROTOIZE | |
1557 | { | |
703ad42b | 1558 | f_list_chain_item *cip = xmalloc (sizeof (f_list_chain_item)); |
5f8037c4 | 1559 | |
23459e15 | 1560 | cip->formals_list |
5f8037c4 | 1561 | = dupnstr (left_paren_p + 1, (size_t) (p - (left_paren_p+1))); |
5f8037c4 | 1562 | |
23459e15 KH |
1563 | /* Add the new chain item at the head of the current list. */ |
1564 | ||
1565 | cip->chain_next = def_dec_p->f_list_chain; | |
1566 | def_dec_p->f_list_chain = cip; | |
5f8037c4 | 1567 | } |
a019653e | 1568 | #endif /* !defined (UNPROTOIZE) */ |
5f8037c4 RS |
1569 | def_dec_p->f_list_count++; |
1570 | ||
1571 | p = left_paren_p - 2; | |
1572 | ||
1573 | /* p must now point either to another right paren, or to the last | |
23459e15 KH |
1574 | character of the name of the function that was declared/defined. |
1575 | If p points to another right paren, then this indicates that we | |
1576 | are dealing with multiple formals lists. In that case, there | |
1577 | really should be another right paren preceding this right paren. */ | |
5f8037c4 RS |
1578 | |
1579 | if (*p != ')') | |
23459e15 | 1580 | break; |
5f8037c4 | 1581 | else |
23459e15 | 1582 | check_aux_info (*--p == ')'); |
5f8037c4 RS |
1583 | } |
1584 | ||
1585 | ||
1586 | { | |
1587 | const char *past_fn = p + 1; | |
1588 | ||
1589 | check_aux_info (*past_fn == ' '); | |
1590 | ||
1591 | /* Scan leftwards over the identifier that names the function. */ | |
1592 | ||
1593 | while (is_id_char (*p)) | |
1594 | p--; | |
1595 | p++; | |
1596 | ||
1597 | /* p now points to the leftmost character of the function name. */ | |
1598 | ||
1599 | { | |
703ad42b | 1600 | char *fn_string = alloca (past_fn - p + 1); |
5f8037c4 RS |
1601 | |
1602 | strncpy (fn_string, p, (size_t) (past_fn - p)); | |
1603 | fn_string[past_fn-p] = '\0'; | |
1604 | def_dec_p->hash_entry = lookup (function_name_primary, fn_string); | |
1605 | } | |
1606 | } | |
1607 | ||
1608 | /* Look at all of the defs and decs for this function name that we have | |
1609 | collected so far. If there is already one which is at the same | |
1610 | line number in the same file, then we can discard this new def_dec_info | |
1611 | record. | |
1612 | ||
1613 | As an extra assurance that any such pair of (nominally) identical | |
1614 | function declarations are in fact identical, we also compare the | |
1615 | ansi_decl parts of the lines from the aux_info files just to be on | |
1616 | the safe side. | |
1617 | ||
1618 | This comparison will fail if (for instance) the user was playing | |
1619 | messy games with the preprocessor which ultimately causes one | |
1620 | function declaration in one header file to look differently when | |
1621 | that file is included by two (or more) other files. */ | |
1622 | ||
1623 | { | |
1624 | const def_dec_info *other; | |
1625 | ||
1626 | for (other = def_dec_p->hash_entry->ddip; other; other = other->next_for_func) | |
1627 | { | |
23459e15 KH |
1628 | if (def_dec_p->line == other->line && def_dec_p->file == other->file) |
1629 | { | |
1630 | if (strcmp (def_dec_p->ansi_decl, other->ansi_decl)) | |
1631 | { | |
9e637a26 | 1632 | notice ("%s:%d: declaration of function '%s' takes different forms\n", |
ab87f8c8 JL |
1633 | def_dec_p->file->hash_entry->symbol, |
1634 | def_dec_p->line, | |
1635 | def_dec_p->hash_entry->symbol); | |
23459e15 KH |
1636 | exit (FATAL_EXIT_CODE); |
1637 | } | |
1638 | free_def_dec (def_dec_p); | |
1639 | return; | |
1640 | } | |
5f8037c4 RS |
1641 | } |
1642 | } | |
1643 | ||
1644 | #ifdef UNPROTOIZE | |
1645 | ||
1646 | /* If we are doing unprotoizing, we must now setup the pointers that will | |
1647 | point to the K&R name list and to the K&R argument declarations list. | |
1648 | ||
1649 | Note that if this is only a function declaration, then we should not | |
1650 | expect to find any K&R style formals list following the ANSI-style | |
1651 | formals list. This is because GCC knows that such information is | |
1652 | useless in the case of function declarations (function definitions | |
1653 | are a different story however). | |
1654 | ||
1655 | Since we are unprotoizing, we don't need any such lists anyway. | |
1656 | All we plan to do is to delete all characters between ()'s in any | |
1657 | case. */ | |
1658 | ||
1659 | def_dec_p->formal_names = NULL; | |
1660 | def_dec_p->formal_decls = NULL; | |
1661 | ||
1662 | if (def_dec_p->is_func_def) | |
1663 | { | |
1664 | p = semicolon_p; | |
1665 | check_aux_info (*++p == ' '); | |
1666 | check_aux_info (*++p == '/'); | |
1667 | check_aux_info (*++p == '*'); | |
1668 | check_aux_info (*++p == ' '); | |
1669 | check_aux_info (*++p == '('); | |
1670 | ||
1671 | { | |
23459e15 | 1672 | const char *kr_names_start = ++p; /* Point just inside '('. */ |
5f8037c4 | 1673 | |
23459e15 KH |
1674 | while (*p++ != ')') |
1675 | continue; | |
1676 | p--; /* point to closing right paren */ | |
5f8037c4 | 1677 | |
23459e15 | 1678 | /* Make a copy of the K&R parameter names list. */ |
5f8037c4 | 1679 | |
23459e15 | 1680 | def_dec_p->formal_names |
5f8037c4 RS |
1681 | = dupnstr (kr_names_start, (size_t) (p - kr_names_start)); |
1682 | } | |
1683 | ||
1684 | check_aux_info (*++p == ' '); | |
1685 | p++; | |
1686 | ||
1687 | /* p now points to the first character of the K&R style declarations | |
23459e15 KH |
1688 | list (if there is one) or to the star-slash combination that ends |
1689 | the comment in which such lists get embedded. */ | |
5f8037c4 RS |
1690 | |
1691 | /* Make a copy of the K&R formal decls list and set the def_dec record | |
23459e15 | 1692 | to point to it. */ |
5f8037c4 RS |
1693 | |
1694 | if (*p == '*') /* Are there no K&R declarations? */ | |
23459e15 KH |
1695 | { |
1696 | check_aux_info (*++p == '/'); | |
1697 | def_dec_p->formal_decls = ""; | |
1698 | } | |
5f8037c4 | 1699 | else |
23459e15 KH |
1700 | { |
1701 | const char *kr_decls_start = p; | |
5f8037c4 | 1702 | |
23459e15 KH |
1703 | while (p[0] != '*' || p[1] != '/') |
1704 | p++; | |
1705 | p--; | |
5f8037c4 | 1706 | |
23459e15 | 1707 | check_aux_info (*p == ' '); |
5f8037c4 | 1708 | |
23459e15 | 1709 | def_dec_p->formal_decls |
5f8037c4 | 1710 | = dupnstr (kr_decls_start, (size_t) (p - kr_decls_start)); |
23459e15 | 1711 | } |
5f8037c4 RS |
1712 | |
1713 | /* Handle a special case. If we have a function definition marked as | |
23459e15 KH |
1714 | being in "old" style, and if its formal names list is empty, then |
1715 | it may actually have the string "void" in its real formals list | |
1716 | in the original source code. Just to make sure, we will get setup | |
1717 | to convert such things anyway. | |
5f8037c4 | 1718 | |
23459e15 KH |
1719 | This kludge only needs to be here because of an insurmountable |
1720 | problem with generating .X files. */ | |
5f8037c4 RS |
1721 | |
1722 | if (!def_dec_p->prototyped && !*def_dec_p->formal_names) | |
23459e15 | 1723 | def_dec_p->prototyped = 1; |
5f8037c4 RS |
1724 | } |
1725 | ||
1726 | /* Since we are unprotoizing, if this item is already in old (K&R) style, | |
1727 | we can just ignore it. If that is true, throw away the itme now. */ | |
1728 | ||
1729 | if (!def_dec_p->prototyped) | |
1730 | { | |
1731 | free_def_dec (def_dec_p); | |
1732 | return; | |
1733 | } | |
1734 | ||
a019653e | 1735 | #endif /* defined (UNPROTOIZE) */ |
5f8037c4 RS |
1736 | |
1737 | /* Add this record to the head of the list of records pertaining to this | |
1738 | particular function name. */ | |
1739 | ||
1740 | def_dec_p->next_for_func = def_dec_p->hash_entry->ddip; | |
1741 | def_dec_p->hash_entry->ddip = def_dec_p; | |
1742 | ||
1743 | /* Add this new def_dec_info record to the sorted list of def_dec_info | |
1744 | records for this file. Note that we don't have to worry about duplicates | |
1745 | (caused by multiple inclusions of header files) here because we have | |
1746 | already eliminated duplicates above. */ | |
1747 | ||
1748 | if (!def_dec_p->file->defs_decs) | |
1749 | { | |
1750 | def_dec_p->file->defs_decs = def_dec_p; | |
1751 | def_dec_p->next_in_file = NULL; | |
1752 | } | |
1753 | else | |
1754 | { | |
1755 | int line = def_dec_p->line; | |
1756 | const def_dec_info *prev = NULL; | |
1757 | const def_dec_info *curr = def_dec_p->file->defs_decs; | |
1758 | const def_dec_info *next = curr->next_in_file; | |
1759 | ||
1760 | while (next && (line < curr->line)) | |
23459e15 KH |
1761 | { |
1762 | prev = curr; | |
1763 | curr = next; | |
1764 | next = next->next_in_file; | |
1765 | } | |
5f8037c4 | 1766 | if (line >= curr->line) |
23459e15 KH |
1767 | { |
1768 | def_dec_p->next_in_file = curr; | |
1769 | if (prev) | |
1770 | ((NONCONST def_dec_info *) prev)->next_in_file = def_dec_p; | |
1771 | else | |
1772 | def_dec_p->file->defs_decs = def_dec_p; | |
1773 | } | |
5f8037c4 | 1774 | else /* assert (next == NULL); */ |
23459e15 KH |
1775 | { |
1776 | ((NONCONST def_dec_info *) curr)->next_in_file = def_dec_p; | |
1777 | /* assert (next == NULL); */ | |
1778 | def_dec_p->next_in_file = next; | |
1779 | } | |
5f8037c4 RS |
1780 | } |
1781 | } | |
1782 | \f | |
bd0725f3 RS |
1783 | /* Set up the vector COMPILE_PARAMS which is the argument list for running GCC. |
1784 | Also set input_file_name_index and aux_info_file_name_index | |
1785 | to the indices of the slots where the file names should go. */ | |
1786 | ||
1787 | /* We initialize the vector by removing -g, -O, -S, -c, and -o options, | |
1788 | and adding '-aux-info AUXFILE -S -o /dev/null INFILE' at the end. */ | |
5f8037c4 RS |
1789 | |
1790 | static void | |
439f7bc3 | 1791 | munge_compile_params (const char *params_list) |
5f8037c4 | 1792 | { |
bd0725f3 RS |
1793 | /* Build up the contents in a temporary vector |
1794 | that is so big that to has to be big enough. */ | |
8241a41f | 1795 | const char **temp_params |
703ad42b | 1796 | = alloca ((strlen (params_list) + 8) * sizeof (char *)); |
5f8037c4 RS |
1797 | int param_count = 0; |
1798 | const char *param; | |
49009afd | 1799 | struct stat st; |
5f8037c4 | 1800 | |
a019653e | 1801 | temp_params[param_count++] = compiler_file_name; |
5f8037c4 RS |
1802 | for (;;) |
1803 | { | |
e51712db | 1804 | while (ISSPACE ((const unsigned char)*params_list)) |
23459e15 | 1805 | params_list++; |
5f8037c4 | 1806 | if (!*params_list) |
23459e15 | 1807 | break; |
5f8037c4 | 1808 | param = params_list; |
e51712db | 1809 | while (*params_list && !ISSPACE ((const unsigned char)*params_list)) |
23459e15 | 1810 | params_list++; |
5f8037c4 | 1811 | if (param[0] != '-') |
23459e15 | 1812 | temp_params[param_count++] |
5f8037c4 RS |
1813 | = dupnstr (param, (size_t) (params_list - param)); |
1814 | else | |
23459e15 KH |
1815 | { |
1816 | switch (param[1]) | |
1817 | { | |
1818 | case 'g': | |
1819 | case 'O': | |
1820 | case 'S': | |
1821 | case 'c': | |
1822 | break; /* Don't copy these. */ | |
1823 | case 'o': | |
1824 | while (ISSPACE ((const unsigned char)*params_list)) | |
1825 | params_list++; | |
1826 | while (*params_list | |
1827 | && !ISSPACE ((const unsigned char)*params_list)) | |
1828 | params_list++; | |
1829 | break; | |
1830 | default: | |
1831 | temp_params[param_count++] | |
1832 | = dupnstr (param, (size_t) (params_list - param)); | |
1833 | } | |
1834 | } | |
5f8037c4 | 1835 | if (!*params_list) |
23459e15 | 1836 | break; |
5f8037c4 | 1837 | } |
bd0725f3 RS |
1838 | temp_params[param_count++] = "-aux-info"; |
1839 | ||
1840 | /* Leave room for the aux-info file name argument. */ | |
1841 | aux_info_file_name_index = param_count; | |
1842 | temp_params[param_count++] = NULL; | |
1843 | ||
5f8037c4 RS |
1844 | temp_params[param_count++] = "-S"; |
1845 | temp_params[param_count++] = "-o"; | |
23459e15 | 1846 | |
7db9125f JL |
1847 | if ((stat (HOST_BIT_BUCKET, &st) == 0) |
1848 | && (!S_ISDIR (st.st_mode)) | |
1849 | && (access (HOST_BIT_BUCKET, W_OK) == 0)) | |
49009afd JL |
1850 | temp_params[param_count++] = HOST_BIT_BUCKET; |
1851 | else | |
1852 | /* FIXME: This is hardly likely to be right, if HOST_BIT_BUCKET is not | |
1853 | writable. But until this is rejigged to use make_temp_file(), this | |
1854 | is the best we can do. */ | |
1855 | temp_params[param_count++] = "/dev/null"; | |
5f8037c4 | 1856 | |
bd0725f3 RS |
1857 | /* Leave room for the input file name argument. */ |
1858 | input_file_name_index = param_count; | |
1859 | temp_params[param_count++] = NULL; | |
1860 | /* Terminate the list. */ | |
5f8037c4 RS |
1861 | temp_params[param_count++] = NULL; |
1862 | ||
1863 | /* Make a copy of the compile_params in heap space. */ | |
1864 | ||
703ad42b | 1865 | compile_params = xmalloc (sizeof (char *) * (param_count+1)); |
5f8037c4 RS |
1866 | memcpy (compile_params, temp_params, sizeof (char *) * param_count); |
1867 | } | |
1868 | ||
1869 | /* Do a recompilation for the express purpose of generating a new aux_info | |
b0e87872 DE |
1870 | file to go with a specific base source file. |
1871 | ||
1872 | The result is a boolean indicating success. */ | |
5f8037c4 RS |
1873 | |
1874 | static int | |
439f7bc3 | 1875 | gen_aux_info_file (const char *base_filename) |
5f8037c4 | 1876 | { |
bd0725f3 | 1877 | if (!input_file_name_index) |
5f8037c4 RS |
1878 | munge_compile_params (""); |
1879 | ||
bd0725f3 RS |
1880 | /* Store the full source file name in the argument vector. */ |
1881 | compile_params[input_file_name_index] = shortpath (NULL, base_filename); | |
1882 | /* Add .X to source file name to get aux-info file name. */ | |
ad85216e | 1883 | compile_params[aux_info_file_name_index] = |
a7db8bbb | 1884 | concat (compile_params[input_file_name_index], aux_info_suffix, NULL); |
23459e15 | 1885 | |
5f8037c4 | 1886 | if (!quiet_flag) |
9e637a26 | 1887 | notice ("%s: compiling '%s'\n", |
ab87f8c8 | 1888 | pname, compile_params[input_file_name_index]); |
5f8037c4 | 1889 | |
b0e87872 DE |
1890 | { |
1891 | char *errmsg_fmt, *errmsg_arg; | |
1892 | int wait_status, pid; | |
5f8037c4 | 1893 | |
b0e87872 | 1894 | pid = pexecute (compile_params[0], (char * const *) compile_params, |
34640c87 | 1895 | pname, NULL, &errmsg_fmt, &errmsg_arg, |
b0e87872 | 1896 | PEXECUTE_FIRST | PEXECUTE_LAST | PEXECUTE_SEARCH); |
5f8037c4 | 1897 | |
b0e87872 | 1898 | if (pid == -1) |
5f8037c4 | 1899 | { |
b0e87872 DE |
1900 | int errno_val = errno; |
1901 | fprintf (stderr, "%s: ", pname); | |
1902 | fprintf (stderr, errmsg_fmt, errmsg_arg); | |
ed35cf6e | 1903 | fprintf (stderr, ": %s\n", xstrerror (errno_val)); |
b0e87872 DE |
1904 | return 0; |
1905 | } | |
5f8037c4 | 1906 | |
b0e87872 DE |
1907 | pid = pwait (pid, &wait_status, 0); |
1908 | if (pid == -1) | |
1909 | { | |
ab87f8c8 | 1910 | notice ("%s: wait: %s\n", pname, xstrerror (errno)); |
b0e87872 DE |
1911 | return 0; |
1912 | } | |
1913 | if (WIFSIGNALED (wait_status)) | |
1914 | { | |
ab87f8c8 JL |
1915 | notice ("%s: subprocess got fatal signal %d\n", |
1916 | pname, WTERMSIG (wait_status)); | |
b0e87872 DE |
1917 | return 0; |
1918 | } | |
1919 | if (WIFEXITED (wait_status)) | |
1920 | { | |
1921 | if (WEXITSTATUS (wait_status) != 0) | |
d742f26c | 1922 | { |
ab87f8c8 JL |
1923 | notice ("%s: %s exited with status %d\n", |
1924 | pname, compile_params[0], WEXITSTATUS (wait_status)); | |
d742f26c RS |
1925 | return 0; |
1926 | } | |
1927 | return 1; | |
5f8037c4 | 1928 | } |
e16acfcd | 1929 | gcc_unreachable (); |
b0e87872 | 1930 | } |
5f8037c4 RS |
1931 | } |
1932 | \f | |
1933 | /* Read in all of the information contained in a single aux_info file. | |
1934 | Save all of the important stuff for later. */ | |
1935 | ||
1936 | static void | |
439f7bc3 AJ |
1937 | process_aux_info_file (const char *base_source_filename, int keep_it, |
1938 | int is_syscalls) | |
5f8037c4 | 1939 | { |
d742f26c | 1940 | size_t base_len = strlen (base_source_filename); |
703ad42b | 1941 | char * aux_info_filename = alloca (base_len + strlen (aux_info_suffix) + 1); |
5f8037c4 RS |
1942 | char *aux_info_base; |
1943 | char *aux_info_limit; | |
d742f26c | 1944 | char *aux_info_relocated_name; |
5f8037c4 RS |
1945 | const char *aux_info_second_line; |
1946 | time_t aux_info_mtime; | |
1947 | size_t aux_info_size; | |
77f99bc7 | 1948 | int must_create; |
5f8037c4 | 1949 | |
a2b22788 | 1950 | /* Construct the aux_info filename from the base source filename. */ |
5f8037c4 | 1951 | |
a2b22788 RS |
1952 | strcpy (aux_info_filename, base_source_filename); |
1953 | strcat (aux_info_filename, aux_info_suffix); | |
5f8037c4 RS |
1954 | |
1955 | /* Check that the aux_info file exists and is readable. If it does not | |
1956 | exist, try to create it (once only). */ | |
1957 | ||
77f99bc7 RS |
1958 | /* If file doesn't exist, set must_create. |
1959 | Likewise if it exists and we can read it but it is obsolete. | |
1960 | Otherwise, report an error. */ | |
1961 | must_create = 0; | |
2cccceff RS |
1962 | |
1963 | /* Come here with must_create set to 1 if file is out of date. */ | |
1964 | start_over: ; | |
1965 | ||
ffb9f2f1 | 1966 | if (access (aux_info_filename, R_OK) == -1) |
77f99bc7 RS |
1967 | { |
1968 | if (errno == ENOENT) | |
1969 | { | |
1970 | if (is_syscalls) | |
1971 | { | |
9e637a26 | 1972 | notice ("%s: warning: missing SYSCALLS file '%s'\n", |
ab87f8c8 | 1973 | pname, aux_info_filename); |
77f99bc7 RS |
1974 | return; |
1975 | } | |
1976 | must_create = 1; | |
1977 | } | |
1978 | else | |
1979 | { | |
e5e809f4 | 1980 | int errno_val = errno; |
9e637a26 | 1981 | notice ("%s: can't read aux info file '%s': %s\n", |
ab87f8c8 JL |
1982 | pname, shortpath (NULL, aux_info_filename), |
1983 | xstrerror (errno_val)); | |
77f99bc7 RS |
1984 | errors++; |
1985 | return; | |
1986 | } | |
1987 | } | |
1988 | #if 0 /* There is code farther down to take care of this. */ | |
1989 | else | |
1990 | { | |
1991 | struct stat s1, s2; | |
1992 | stat (aux_info_file_name, &s1); | |
1993 | stat (base_source_file_name, &s2); | |
1994 | if (s2.st_mtime > s1.st_mtime) | |
1995 | must_create = 1; | |
1996 | } | |
1997 | #endif /* 0 */ | |
5f8037c4 | 1998 | |
77f99bc7 RS |
1999 | /* If we need a .X file, create it, and verify we can read it. */ |
2000 | if (must_create) | |
2001 | { | |
2002 | if (!gen_aux_info_file (base_source_filename)) | |
2003 | { | |
2004 | errors++; | |
2005 | return; | |
2006 | } | |
ffb9f2f1 | 2007 | if (access (aux_info_filename, R_OK) == -1) |
77f99bc7 | 2008 | { |
e5e809f4 | 2009 | int errno_val = errno; |
9e637a26 | 2010 | notice ("%s: can't read aux info file '%s': %s\n", |
ab87f8c8 JL |
2011 | pname, shortpath (NULL, aux_info_filename), |
2012 | xstrerror (errno_val)); | |
77f99bc7 RS |
2013 | errors++; |
2014 | return; | |
2015 | } | |
2016 | } | |
5f8037c4 RS |
2017 | |
2018 | { | |
2019 | struct stat stat_buf; | |
2020 | ||
2021 | /* Get some status information about this aux_info file. */ | |
23459e15 | 2022 | |
ffb9f2f1 | 2023 | if (stat (aux_info_filename, &stat_buf) == -1) |
5f8037c4 | 2024 | { |
e5e809f4 | 2025 | int errno_val = errno; |
9e637a26 | 2026 | notice ("%s: can't get status of aux info file '%s': %s\n", |
ab87f8c8 JL |
2027 | pname, shortpath (NULL, aux_info_filename), |
2028 | xstrerror (errno_val)); | |
23459e15 KH |
2029 | errors++; |
2030 | return; | |
5f8037c4 | 2031 | } |
23459e15 | 2032 | |
5f8037c4 RS |
2033 | /* Check on whether or not this aux_info file is zero length. If it is, |
2034 | then just ignore it and return. */ | |
23459e15 | 2035 | |
5f8037c4 RS |
2036 | if ((aux_info_size = stat_buf.st_size) == 0) |
2037 | return; | |
23459e15 | 2038 | |
5f8037c4 RS |
2039 | /* Get the date/time of last modification for this aux_info file and |
2040 | remember it. We will have to check that any source files that it | |
2041 | contains information about are at least this old or older. */ | |
23459e15 | 2042 | |
5f8037c4 | 2043 | aux_info_mtime = stat_buf.st_mtime; |
667cc897 | 2044 | |
2cccceff | 2045 | if (!is_syscalls) |
667cc897 | 2046 | { |
2cccceff RS |
2047 | /* Compare mod time with the .c file; update .X file if obsolete. |
2048 | The code later on can fail to check the .c file | |
2049 | if it did not directly define any functions. */ | |
2050 | ||
ffb9f2f1 | 2051 | if (stat (base_source_filename, &stat_buf) == -1) |
2cccceff | 2052 | { |
e5e809f4 | 2053 | int errno_val = errno; |
9e637a26 | 2054 | notice ("%s: can't get status of aux info file '%s': %s\n", |
ab87f8c8 JL |
2055 | pname, shortpath (NULL, base_source_filename), |
2056 | xstrerror (errno_val)); | |
2cccceff RS |
2057 | errors++; |
2058 | return; | |
2059 | } | |
2060 | if (stat_buf.st_mtime > aux_info_mtime) | |
2061 | { | |
2062 | must_create = 1; | |
2063 | goto start_over; | |
2064 | } | |
667cc897 | 2065 | } |
5f8037c4 RS |
2066 | } |
2067 | ||
2068 | { | |
2069 | int aux_info_file; | |
ee77eda5 | 2070 | int fd_flags; |
5f8037c4 RS |
2071 | |
2072 | /* Open the aux_info file. */ | |
23459e15 | 2073 | |
ee77eda5 MK |
2074 | fd_flags = O_RDONLY; |
2075 | #ifdef O_BINARY | |
dc297297 | 2076 | /* Use binary mode to avoid having to deal with different EOL characters. */ |
ee77eda5 MK |
2077 | fd_flags |= O_BINARY; |
2078 | #endif | |
2079 | if ((aux_info_file = open (aux_info_filename, fd_flags, 0444 )) == -1) | |
5f8037c4 | 2080 | { |
e5e809f4 | 2081 | int errno_val = errno; |
9e637a26 | 2082 | notice ("%s: can't open aux info file '%s' for reading: %s\n", |
ab87f8c8 JL |
2083 | pname, shortpath (NULL, aux_info_filename), |
2084 | xstrerror (errno_val)); | |
23459e15 | 2085 | return; |
5f8037c4 | 2086 | } |
23459e15 | 2087 | |
5f8037c4 | 2088 | /* Allocate space to hold the aux_info file in memory. */ |
23459e15 | 2089 | |
5f8037c4 RS |
2090 | aux_info_base = xmalloc (aux_info_size + 1); |
2091 | aux_info_limit = aux_info_base + aux_info_size; | |
2092 | *aux_info_limit = '\0'; | |
23459e15 | 2093 | |
5f8037c4 | 2094 | /* Read the aux_info file into memory. */ |
23459e15 | 2095 | |
e51712db KG |
2096 | if (safe_read (aux_info_file, aux_info_base, aux_info_size) != |
2097 | (int) aux_info_size) | |
5f8037c4 | 2098 | { |
e5e809f4 | 2099 | int errno_val = errno; |
9e637a26 | 2100 | notice ("%s: error reading aux info file '%s': %s\n", |
ab87f8c8 JL |
2101 | pname, shortpath (NULL, aux_info_filename), |
2102 | xstrerror (errno_val)); | |
23459e15 KH |
2103 | free (aux_info_base); |
2104 | close (aux_info_file); | |
2105 | return; | |
5f8037c4 | 2106 | } |
23459e15 | 2107 | |
5f8037c4 | 2108 | /* Close the aux info file. */ |
23459e15 | 2109 | |
5f8037c4 RS |
2110 | if (close (aux_info_file)) |
2111 | { | |
e5e809f4 | 2112 | int errno_val = errno; |
9e637a26 | 2113 | notice ("%s: error closing aux info file '%s': %s\n", |
ab87f8c8 JL |
2114 | pname, shortpath (NULL, aux_info_filename), |
2115 | xstrerror (errno_val)); | |
23459e15 KH |
2116 | free (aux_info_base); |
2117 | close (aux_info_file); | |
2118 | return; | |
5f8037c4 RS |
2119 | } |
2120 | } | |
2121 | ||
2122 | /* Delete the aux_info file (unless requested not to). If the deletion | |
2123 | fails for some reason, don't even worry about it. */ | |
2124 | ||
667cc897 | 2125 | if (must_create && !keep_it) |
ffb9f2f1 | 2126 | if (unlink (aux_info_filename) == -1) |
e5e809f4 JL |
2127 | { |
2128 | int errno_val = errno; | |
9e637a26 | 2129 | notice ("%s: can't delete aux info file '%s': %s\n", |
ab87f8c8 JL |
2130 | pname, shortpath (NULL, aux_info_filename), |
2131 | xstrerror (errno_val)); | |
e5e809f4 | 2132 | } |
5f8037c4 RS |
2133 | |
2134 | /* Save a pointer into the first line of the aux_info file which | |
a2b22788 | 2135 | contains the filename of the directory from which the compiler |
5f8037c4 RS |
2136 | was invoked when the associated source file was compiled. |
2137 | This information is used later to help create complete | |
a2b22788 | 2138 | filenames out of the (potentially) relative filenames in |
5f8037c4 RS |
2139 | the aux_info file. */ |
2140 | ||
2141 | { | |
2142 | char *p = aux_info_base; | |
2143 | ||
ee77eda5 MK |
2144 | while (*p != ':' |
2145 | #ifdef HAVE_DOS_BASED_FILE_SYSTEM | |
23459e15 | 2146 | || (*p == ':' && *p && *(p+1) && IS_DIR_SEPARATOR (*(p+1))) |
ee77eda5 | 2147 | #endif |
23459e15 | 2148 | ) |
5f8037c4 RS |
2149 | p++; |
2150 | p++; | |
2151 | while (*p == ' ') | |
2152 | p++; | |
a2b22788 | 2153 | invocation_filename = p; /* Save a pointer to first byte of path. */ |
5f8037c4 RS |
2154 | while (*p != ' ') |
2155 | p++; | |
ee77eda5 | 2156 | *p++ = DIR_SEPARATOR; |
5f8037c4 RS |
2157 | *p++ = '\0'; |
2158 | while (*p++ != '\n') | |
2159 | continue; | |
2160 | aux_info_second_line = p; | |
d742f26c | 2161 | aux_info_relocated_name = 0; |
3dce1408 | 2162 | if (! IS_ABSOLUTE_PATH (invocation_filename)) |
d742f26c RS |
2163 | { |
2164 | /* INVOCATION_FILENAME is relative; | |
2165 | append it to BASE_SOURCE_FILENAME's dir. */ | |
2166 | char *dir_end; | |
2167 | aux_info_relocated_name = xmalloc (base_len + (p-invocation_filename)); | |
2168 | strcpy (aux_info_relocated_name, base_source_filename); | |
ee77eda5 MK |
2169 | dir_end = strrchr (aux_info_relocated_name, DIR_SEPARATOR); |
2170 | #ifdef DIR_SEPARATOR_2 | |
2171 | { | |
2172 | char *slash; | |
2173 | ||
23459e15 KH |
2174 | slash = strrchr (dir_end ? dir_end : aux_info_relocated_name, |
2175 | DIR_SEPARATOR_2); | |
ee77eda5 MK |
2176 | if (slash) |
2177 | dir_end = slash; | |
2178 | } | |
2179 | #endif | |
d742f26c RS |
2180 | if (dir_end) |
2181 | dir_end++; | |
2182 | else | |
2183 | dir_end = aux_info_relocated_name; | |
2184 | strcpy (dir_end, invocation_filename); | |
2185 | invocation_filename = aux_info_relocated_name; | |
2186 | } | |
5f8037c4 RS |
2187 | } |
2188 | ||
2189 | ||
2190 | { | |
2191 | const char *aux_info_p; | |
2192 | ||
2193 | /* Do a pre-pass on the lines in the aux_info file, making sure that all | |
2194 | of the source files referenced in there are at least as old as this | |
2195 | aux_info file itself. If not, go back and regenerate the aux_info | |
2196 | file anew. Don't do any of this for the syscalls file. */ | |
2197 | ||
2198 | if (!is_syscalls) | |
2199 | { | |
23459e15 KH |
2200 | current_aux_info_lineno = 2; |
2201 | ||
2202 | for (aux_info_p = aux_info_second_line; *aux_info_p; ) | |
2203 | { | |
2204 | if (referenced_file_is_newer (aux_info_p, aux_info_mtime)) | |
2205 | { | |
2206 | free (aux_info_base); | |
ad85216e | 2207 | free (aux_info_relocated_name); |
23459e15 KH |
2208 | if (keep_it && unlink (aux_info_filename) == -1) |
2209 | { | |
e5e809f4 | 2210 | int errno_val = errno; |
9e637a26 | 2211 | notice ("%s: can't delete file '%s': %s\n", |
ab87f8c8 JL |
2212 | pname, shortpath (NULL, aux_info_filename), |
2213 | xstrerror (errno_val)); | |
23459e15 KH |
2214 | return; |
2215 | } | |
2f397844 | 2216 | must_create = 1; |
23459e15 KH |
2217 | goto start_over; |
2218 | } | |
2219 | ||
2220 | /* Skip over the rest of this line to start of next line. */ | |
2221 | ||
2222 | while (*aux_info_p != '\n') | |
2223 | aux_info_p++; | |
2224 | aux_info_p++; | |
2225 | current_aux_info_lineno++; | |
2226 | } | |
5f8037c4 RS |
2227 | } |
2228 | ||
2229 | /* Now do the real pass on the aux_info lines. Save their information in | |
2230 | the in-core data base. */ | |
23459e15 | 2231 | |
5f8037c4 | 2232 | current_aux_info_lineno = 2; |
23459e15 | 2233 | |
5f8037c4 RS |
2234 | for (aux_info_p = aux_info_second_line; *aux_info_p;) |
2235 | { | |
23459e15 KH |
2236 | char *unexpanded_line = unexpand_if_needed (aux_info_p); |
2237 | ||
2238 | if (unexpanded_line) | |
2239 | { | |
2240 | save_def_or_dec (unexpanded_line, is_syscalls); | |
2241 | free (unexpanded_line); | |
2242 | } | |
2243 | else | |
2244 | save_def_or_dec (aux_info_p, is_syscalls); | |
2245 | ||
2246 | /* Skip over the rest of this line and get to start of next line. */ | |
2247 | ||
2248 | while (*aux_info_p != '\n') | |
2249 | aux_info_p++; | |
2250 | aux_info_p++; | |
2251 | current_aux_info_lineno++; | |
5f8037c4 RS |
2252 | } |
2253 | } | |
2254 | ||
2255 | free (aux_info_base); | |
ad85216e | 2256 | free (aux_info_relocated_name); |
5f8037c4 RS |
2257 | } |
2258 | \f | |
2259 | #ifndef UNPROTOIZE | |
2260 | ||
2261 | /* Check an individual filename for a .c suffix. If the filename has this | |
2262 | suffix, rename the file such that its suffix is changed to .C. This | |
2263 | function implements the -C option. */ | |
2264 | ||
2265 | static void | |
439f7bc3 | 2266 | rename_c_file (const hash_table_entry *hp) |
5f8037c4 | 2267 | { |
a2b22788 RS |
2268 | const char *filename = hp->symbol; |
2269 | int last_char_index = strlen (filename) - 1; | |
703ad42b KG |
2270 | char *const new_filename = alloca (strlen (filename) |
2271 | + strlen (cplus_suffix) + 1); | |
5f8037c4 RS |
2272 | |
2273 | /* Note that we don't care here if the given file was converted or not. It | |
2274 | is possible that the given file was *not* converted, simply because there | |
2275 | was nothing in it which actually required conversion. Even in this case, | |
2276 | we want to do the renaming. Note that we only rename files with the .c | |
ee77eda5 | 2277 | suffix (except for the syscalls file, which is left alone). */ |
5f8037c4 | 2278 | |
ee77eda5 MK |
2279 | if (filename[last_char_index] != 'c' || filename[last_char_index-1] != '.' |
2280 | || IS_SAME_PATH (syscalls_absolute_filename, filename)) | |
5f8037c4 RS |
2281 | return; |
2282 | ||
a2b22788 | 2283 | strcpy (new_filename, filename); |
ee77eda5 | 2284 | strcpy (&new_filename[last_char_index], cplus_suffix); |
5f8037c4 | 2285 | |
ee77eda5 | 2286 | if (rename (filename, new_filename) == -1) |
5f8037c4 | 2287 | { |
e5e809f4 | 2288 | int errno_val = errno; |
9e637a26 | 2289 | notice ("%s: warning: can't rename file '%s' to '%s': %s\n", |
ab87f8c8 JL |
2290 | pname, shortpath (NULL, filename), |
2291 | shortpath (NULL, new_filename), xstrerror (errno_val)); | |
5f8037c4 RS |
2292 | errors++; |
2293 | return; | |
2294 | } | |
5f8037c4 RS |
2295 | } |
2296 | ||
a019653e | 2297 | #endif /* !defined (UNPROTOIZE) */ |
5f8037c4 RS |
2298 | \f |
2299 | /* Take the list of definitions and declarations attached to a particular | |
2300 | file_info node and reverse the order of the list. This should get the | |
2301 | list into an order such that the item with the lowest associated line | |
2302 | number is nearest the head of the list. When these lists are originally | |
2303 | built, they are in the opposite order. We want to traverse them in | |
2304 | normal line number order later (i.e. lowest to highest) so reverse the | |
2305 | order here. */ | |
2306 | ||
2307 | static void | |
439f7bc3 | 2308 | reverse_def_dec_list (const hash_table_entry *hp) |
5f8037c4 RS |
2309 | { |
2310 | file_info *file_p = hp->fip; | |
a88a8c0b | 2311 | def_dec_info *prev = NULL; |
cf403648 | 2312 | def_dec_info *current = (def_dec_info *) file_p->defs_decs; |
5f8037c4 | 2313 | |
c3583620 | 2314 | if (!current) |
5f8037c4 RS |
2315 | return; /* no list to reverse */ |
2316 | ||
2317 | prev = current; | |
cf403648 | 2318 | if (! (current = (def_dec_info *) current->next_in_file)) |
5f8037c4 RS |
2319 | return; /* can't reverse a single list element */ |
2320 | ||
a88a8c0b | 2321 | prev->next_in_file = NULL; |
5f8037c4 RS |
2322 | |
2323 | while (current) | |
2324 | { | |
cf403648 | 2325 | def_dec_info *next = (def_dec_info *) current->next_in_file; |
5f8037c4 | 2326 | |
a88a8c0b | 2327 | current->next_in_file = prev; |
5f8037c4 RS |
2328 | prev = current; |
2329 | current = next; | |
2330 | } | |
2331 | ||
2332 | file_p->defs_decs = prev; | |
2333 | } | |
2334 | ||
2335 | #ifndef UNPROTOIZE | |
2336 | ||
2337 | /* Find the (only?) extern definition for a particular function name, starting | |
2338 | from the head of the linked list of entries for the given name. If we | |
2339 | cannot find an extern definition for the given function name, issue a | |
2340 | warning and scrounge around for the next best thing, i.e. an extern | |
2341 | function declaration with a prototype attached to it. Note that we only | |
2342 | allow such substitutions for extern declarations and never for static | |
2343 | declarations. That's because the only reason we allow them at all is | |
2344 | to let un-prototyped function declarations for system-supplied library | |
2345 | functions get their prototypes from our own extra SYSCALLS.c.X file which | |
2346 | contains all of the correct prototypes for system functions. */ | |
2347 | ||
2348 | static const def_dec_info * | |
439f7bc3 | 2349 | find_extern_def (const def_dec_info *head, const def_dec_info *user) |
5f8037c4 RS |
2350 | { |
2351 | const def_dec_info *dd_p; | |
2352 | const def_dec_info *extern_def_p = NULL; | |
2353 | int conflict_noted = 0; | |
2354 | ||
2355 | /* Don't act too stupid here. Somebody may try to convert an entire system | |
2356 | in one swell fwoop (rather than one program at a time, as should be done) | |
2357 | and in that case, we may find that there are multiple extern definitions | |
2358 | of a given function name in the entire set of source files that we are | |
2359 | converting. If however one of these definitions resides in exactly the | |
2360 | same source file as the reference we are trying to satisfy then in that | |
2361 | case it would be stupid for us to fail to realize that this one definition | |
2362 | *must* be the precise one we are looking for. | |
2363 | ||
2364 | To make sure that we don't miss an opportunity to make this "same file" | |
2365 | leap of faith, we do a prescan of the list of records relating to the | |
2366 | given function name, and we look (on this first scan) *only* for a | |
2367 | definition of the function which is in the same file as the reference | |
2368 | we are currently trying to satisfy. */ | |
2369 | ||
2370 | for (dd_p = head; dd_p; dd_p = dd_p->next_for_func) | |
2371 | if (dd_p->is_func_def && !dd_p->is_static && dd_p->file == user->file) | |
2372 | return dd_p; | |
2373 | ||
2374 | /* Now, since we have not found a definition in the same file as the | |
2375 | reference, we scan the list again and consider all possibilities from | |
2376 | all files. Here we may get conflicts with the things listed in the | |
2377 | SYSCALLS.c.X file, but if that happens it only means that the source | |
2378 | code being converted contains its own definition of a function which | |
2379 | could have been supplied by libc.a. In such cases, we should avoid | |
2380 | issuing the normal warning, and defer to the definition given in the | |
6d2f8887 | 2381 | user's own code. */ |
5f8037c4 RS |
2382 | |
2383 | for (dd_p = head; dd_p; dd_p = dd_p->next_for_func) | |
2384 | if (dd_p->is_func_def && !dd_p->is_static) | |
2385 | { | |
23459e15 KH |
2386 | if (!extern_def_p) /* Previous definition? */ |
2387 | extern_def_p = dd_p; /* Remember the first definition found. */ | |
2388 | else | |
2389 | { | |
2390 | /* Ignore definition just found if it came from SYSCALLS.c.X. */ | |
2391 | ||
2392 | if (is_syscalls_file (dd_p->file)) | |
2393 | continue; | |
2394 | ||
2395 | /* Quietly replace the definition previously found with the one | |
2396 | just found if the previous one was from SYSCALLS.c.X. */ | |
2397 | ||
2398 | if (is_syscalls_file (extern_def_p->file)) | |
2399 | { | |
2400 | extern_def_p = dd_p; | |
2401 | continue; | |
2402 | } | |
2403 | ||
2404 | /* If we get here, then there is a conflict between two function | |
2405 | declarations for the same function, both of which came from the | |
2406 | user's own code. */ | |
2407 | ||
2408 | if (!conflict_noted) /* first time we noticed? */ | |
2409 | { | |
2410 | conflict_noted = 1; | |
2411 | notice ("%s: conflicting extern definitions of '%s'\n", | |
ab87f8c8 | 2412 | pname, head->hash_entry->symbol); |
23459e15 KH |
2413 | if (!quiet_flag) |
2414 | { | |
2415 | notice ("%s: declarations of '%s' will not be converted\n", | |
ab87f8c8 | 2416 | pname, head->hash_entry->symbol); |
23459e15 | 2417 | notice ("%s: conflict list for '%s' follows:\n", |
ab87f8c8 | 2418 | pname, head->hash_entry->symbol); |
23459e15 | 2419 | fprintf (stderr, "%s: %s(%d): %s\n", |
a2b22788 RS |
2420 | pname, |
2421 | shortpath (NULL, extern_def_p->file->hash_entry->symbol), | |
2422 | extern_def_p->line, extern_def_p->ansi_decl); | |
23459e15 KH |
2423 | } |
2424 | } | |
2425 | if (!quiet_flag) | |
2426 | fprintf (stderr, "%s: %s(%d): %s\n", | |
a2b22788 RS |
2427 | pname, |
2428 | shortpath (NULL, dd_p->file->hash_entry->symbol), | |
2429 | dd_p->line, dd_p->ansi_decl); | |
23459e15 | 2430 | } |
5f8037c4 RS |
2431 | } |
2432 | ||
2433 | /* We want to err on the side of caution, so if we found multiple conflicting | |
2434 | definitions for the same function, treat this as being that same as if we | |
2435 | had found no definitions (i.e. return NULL). */ | |
2436 | ||
2437 | if (conflict_noted) | |
2438 | return NULL; | |
2439 | ||
2440 | if (!extern_def_p) | |
2441 | { | |
2442 | /* We have no definitions for this function so do the next best thing. | |
23459e15 | 2443 | Search for an extern declaration already in prototype form. */ |
5f8037c4 RS |
2444 | |
2445 | for (dd_p = head; dd_p; dd_p = dd_p->next_for_func) | |
23459e15 KH |
2446 | if (!dd_p->is_func_def && !dd_p->is_static && dd_p->prototyped) |
2447 | { | |
2448 | extern_def_p = dd_p; /* save a pointer to the definition */ | |
2449 | if (!quiet_flag) | |
9e637a26 | 2450 | notice ("%s: warning: using formals list from %s(%d) for function '%s'\n", |
ab87f8c8 JL |
2451 | pname, |
2452 | shortpath (NULL, dd_p->file->hash_entry->symbol), | |
2453 | dd_p->line, dd_p->hash_entry->symbol); | |
23459e15 KH |
2454 | break; |
2455 | } | |
5f8037c4 RS |
2456 | |
2457 | /* Gripe about unprototyped function declarations that we found no | |
23459e15 KH |
2458 | corresponding definition (or other source of prototype information) |
2459 | for. | |
5f8037c4 | 2460 | |
23459e15 KH |
2461 | Gripe even if the unprototyped declaration we are worried about |
2462 | exists in a file in one of the "system" include directories. We | |
2463 | can gripe about these because we should have at least found a | |
2464 | corresponding (pseudo) definition in the SYSCALLS.c.X file. If we | |
5f8037c4 | 2465 | didn't, then that means that the SYSCALLS.c.X file is missing some |
23459e15 KH |
2466 | needed prototypes for this particular system. That is worth telling |
2467 | the user about! */ | |
5f8037c4 RS |
2468 | |
2469 | if (!extern_def_p) | |
23459e15 KH |
2470 | { |
2471 | const char *file = user->file->hash_entry->symbol; | |
5f8037c4 | 2472 | |
23459e15 KH |
2473 | if (!quiet_flag) |
2474 | if (in_system_include_dir (file)) | |
2475 | { | |
5f8037c4 RS |
2476 | /* Why copy this string into `needed' at all? |
2477 | Why not just use user->ansi_decl without copying? */ | |
703ad42b | 2478 | char *needed = alloca (strlen (user->ansi_decl) + 1); |
23459e15 | 2479 | char *p; |
5f8037c4 | 2480 | |
23459e15 | 2481 | strcpy (needed, user->ansi_decl); |
9e46226d | 2482 | p = strstr (needed, user->hash_entry->symbol) |
23459e15 | 2483 | + strlen (user->hash_entry->symbol) + 2; |
a609bfc6 RS |
2484 | /* Avoid having ??? in the string. */ |
2485 | *p++ = '?'; | |
2486 | *p++ = '?'; | |
2487 | *p++ = '?'; | |
23459e15 | 2488 | strcpy (p, ");"); |
5f8037c4 | 2489 | |
9e637a26 | 2490 | notice ("%s: %d: '%s' used but missing from SYSCALLS\n", |
ab87f8c8 JL |
2491 | shortpath (NULL, file), user->line, |
2492 | needed+7); /* Don't print "extern " */ | |
23459e15 | 2493 | } |
8241a41f | 2494 | #if 0 |
23459e15 | 2495 | else |
9e637a26 | 2496 | notice ("%s: %d: warning: no extern definition for '%s'\n", |
ab87f8c8 JL |
2497 | shortpath (NULL, file), user->line, |
2498 | user->hash_entry->symbol); | |
8241a41f | 2499 | #endif |
23459e15 | 2500 | } |
5f8037c4 RS |
2501 | } |
2502 | return extern_def_p; | |
2503 | } | |
2504 | \f | |
2505 | /* Find the (only?) static definition for a particular function name in a | |
2506 | given file. Here we get the function-name and the file info indirectly | |
0f41302f | 2507 | from the def_dec_info record pointer which is passed in. */ |
5f8037c4 RS |
2508 | |
2509 | static const def_dec_info * | |
439f7bc3 | 2510 | find_static_definition (const def_dec_info *user) |
5f8037c4 RS |
2511 | { |
2512 | const def_dec_info *head = user->hash_entry->ddip; | |
2513 | const def_dec_info *dd_p; | |
2514 | int num_static_defs = 0; | |
2515 | const def_dec_info *static_def_p = NULL; | |
2516 | ||
2517 | for (dd_p = head; dd_p; dd_p = dd_p->next_for_func) | |
2518 | if (dd_p->is_func_def && dd_p->is_static && (dd_p->file == user->file)) | |
2519 | { | |
23459e15 KH |
2520 | static_def_p = dd_p; /* save a pointer to the definition */ |
2521 | num_static_defs++; | |
5f8037c4 RS |
2522 | } |
2523 | if (num_static_defs == 0) | |
2524 | { | |
2525 | if (!quiet_flag) | |
9e637a26 | 2526 | notice ("%s: warning: no static definition for '%s' in file '%s'\n", |
ab87f8c8 JL |
2527 | pname, head->hash_entry->symbol, |
2528 | shortpath (NULL, user->file->hash_entry->symbol)); | |
5f8037c4 RS |
2529 | } |
2530 | else if (num_static_defs > 1) | |
2531 | { | |
9e637a26 | 2532 | notice ("%s: multiple static defs of '%s' in file '%s'\n", |
ab87f8c8 JL |
2533 | pname, head->hash_entry->symbol, |
2534 | shortpath (NULL, user->file->hash_entry->symbol)); | |
5f8037c4 RS |
2535 | return NULL; |
2536 | } | |
2537 | return static_def_p; | |
2538 | } | |
2539 | ||
2540 | /* Find good prototype style formal argument lists for all of the function | |
2541 | declarations which didn't have them before now. | |
2542 | ||
2543 | To do this we consider each function name one at a time. For each function | |
2544 | name, we look at the items on the linked list of def_dec_info records for | |
2545 | that particular name. | |
2546 | ||
2547 | Somewhere on this list we should find one (and only one) def_dec_info | |
2548 | record which represents the actual function definition, and this record | |
2549 | should have a nice formal argument list already associated with it. | |
2550 | ||
2551 | Thus, all we have to do is to connect up all of the other def_dec_info | |
2552 | records for this particular function name to the special one which has | |
2553 | the full-blown formals list. | |
2554 | ||
2555 | Of course it is a little more complicated than just that. See below for | |
2556 | more details. */ | |
2557 | ||
2558 | static void | |
439f7bc3 | 2559 | connect_defs_and_decs (const hash_table_entry *hp) |
5f8037c4 RS |
2560 | { |
2561 | const def_dec_info *dd_p; | |
2562 | const def_dec_info *extern_def_p = NULL; | |
2563 | int first_extern_reference = 1; | |
2564 | ||
2565 | /* Traverse the list of definitions and declarations for this particular | |
2566 | function name. For each item on the list, if it is a function | |
2567 | definition (either old style or new style) then GCC has already been | |
2568 | kind enough to produce a prototype for us, and it is associated with | |
2569 | the item already, so declare the item as its own associated "definition". | |
2570 | ||
2571 | Also, for each item which is only a function declaration, but which | |
2572 | nonetheless has its own prototype already (obviously supplied by the user) | |
9ec36da5 | 2573 | declare the item as its own definition. |
5f8037c4 RS |
2574 | |
2575 | Note that when/if there are multiple user-supplied prototypes already | |
2576 | present for multiple declarations of any given function, these multiple | |
2577 | prototypes *should* all match exactly with one another and with the | |
2578 | prototype for the actual function definition. We don't check for this | |
2579 | here however, since we assume that the compiler must have already done | |
d45cf215 | 2580 | this consistency checking when it was creating the .X files. */ |
5f8037c4 RS |
2581 | |
2582 | for (dd_p = hp->ddip; dd_p; dd_p = dd_p->next_for_func) | |
2583 | if (dd_p->prototyped) | |
2584 | ((NONCONST def_dec_info *) dd_p)->definition = dd_p; | |
2585 | ||
2586 | /* Traverse the list of definitions and declarations for this particular | |
2587 | function name. For each item on the list, if it is an extern function | |
2588 | declaration and if it has no associated definition yet, go try to find | |
2589 | the matching extern definition for the declaration. | |
2590 | ||
2591 | When looking for the matching function definition, warn the user if we | |
2592 | fail to find one. | |
2593 | ||
2594 | If we find more that one function definition also issue a warning. | |
2595 | ||
2596 | Do the search for the matching definition only once per unique function | |
2597 | name (and only when absolutely needed) so that we can avoid putting out | |
2598 | redundant warning messages, and so that we will only put out warning | |
2599 | messages when there is actually a reference (i.e. a declaration) for | |
2600 | which we need to find a matching definition. */ | |
2601 | ||
2602 | for (dd_p = hp->ddip; dd_p; dd_p = dd_p->next_for_func) | |
2603 | if (!dd_p->is_func_def && !dd_p->is_static && !dd_p->definition) | |
2604 | { | |
23459e15 KH |
2605 | if (first_extern_reference) |
2606 | { | |
2607 | extern_def_p = find_extern_def (hp->ddip, dd_p); | |
2608 | first_extern_reference = 0; | |
2609 | } | |
2610 | ((NONCONST def_dec_info *) dd_p)->definition = extern_def_p; | |
5f8037c4 RS |
2611 | } |
2612 | ||
2613 | /* Traverse the list of definitions and declarations for this particular | |
2614 | function name. For each item on the list, if it is a static function | |
2615 | declaration and if it has no associated definition yet, go try to find | |
2616 | the matching static definition for the declaration within the same file. | |
2617 | ||
2618 | When looking for the matching function definition, warn the user if we | |
2619 | fail to find one in the same file with the declaration, and refuse to | |
2620 | convert this kind of cross-file static function declaration. After all, | |
2621 | this is stupid practice and should be discouraged. | |
2622 | ||
2623 | We don't have to worry about the possibility that there is more than one | |
2624 | matching function definition in the given file because that would have | |
2625 | been flagged as an error by the compiler. | |
2626 | ||
2627 | Do the search for the matching definition only once per unique | |
2628 | function-name/source-file pair (and only when absolutely needed) so that | |
2629 | we can avoid putting out redundant warning messages, and so that we will | |
2630 | only put out warning messages when there is actually a reference (i.e. a | |
2631 | declaration) for which we actually need to find a matching definition. */ | |
2632 | ||
2633 | for (dd_p = hp->ddip; dd_p; dd_p = dd_p->next_for_func) | |
2634 | if (!dd_p->is_func_def && dd_p->is_static && !dd_p->definition) | |
2635 | { | |
23459e15 KH |
2636 | const def_dec_info *dd_p2; |
2637 | const def_dec_info *static_def; | |
2638 | ||
2639 | /* We have now found a single static declaration for which we need to | |
2640 | find a matching definition. We want to minimize the work (and the | |
2641 | number of warnings), so we will find an appropriate (matching) | |
2642 | static definition for this declaration, and then distribute it | |
2643 | (as the definition for) any and all other static declarations | |
2644 | for this function name which occur within the same file, and which | |
2645 | do not already have definitions. | |
2646 | ||
2647 | Note that a trick is used here to prevent subsequent attempts to | |
2648 | call find_static_definition for a given function-name & file | |
2649 | if the first such call returns NULL. Essentially, we convert | |
2650 | these NULL return values to -1, and put the -1 into the definition | |
2651 | field for each other static declaration from the same file which | |
2652 | does not already have an associated definition. | |
2653 | This makes these other static declarations look like they are | |
2654 | actually defined already when the outer loop here revisits them | |
2655 | later on. Thus, the outer loop will skip over them. Later, we | |
2656 | turn the -1's back to NULL's. */ | |
2657 | ||
2658 | ((NONCONST def_dec_info *) dd_p)->definition = | |
2659 | (static_def = find_static_definition (dd_p)) | |
2660 | ? static_def | |
2661 | : (const def_dec_info *) -1; | |
2662 | ||
2663 | for (dd_p2 = dd_p->next_for_func; dd_p2; dd_p2 = dd_p2->next_for_func) | |
2664 | if (!dd_p2->is_func_def && dd_p2->is_static | |
2665 | && !dd_p2->definition && (dd_p2->file == dd_p->file)) | |
2666 | ((NONCONST def_dec_info *) dd_p2)->definition = dd_p->definition; | |
5f8037c4 RS |
2667 | } |
2668 | ||
2669 | /* Convert any dummy (-1) definitions we created in the step above back to | |
2670 | NULL's (as they should be). */ | |
2671 | ||
2672 | for (dd_p = hp->ddip; dd_p; dd_p = dd_p->next_for_func) | |
2673 | if (dd_p->definition == (def_dec_info *) -1) | |
2674 | ((NONCONST def_dec_info *) dd_p)->definition = NULL; | |
2675 | } | |
2676 | ||
a019653e | 2677 | #endif /* !defined (UNPROTOIZE) */ |
5f8037c4 RS |
2678 | |
2679 | /* Give a pointer into the clean text buffer, return a number which is the | |
2680 | original source line number that the given pointer points into. */ | |
2681 | ||
2682 | static int | |
439f7bc3 | 2683 | identify_lineno (const char *clean_p) |
5f8037c4 RS |
2684 | { |
2685 | int line_num = 1; | |
2686 | const char *scan_p; | |
2687 | ||
2688 | for (scan_p = clean_text_base; scan_p <= clean_p; scan_p++) | |
2689 | if (*scan_p == '\n') | |
2690 | line_num++; | |
2691 | return line_num; | |
2692 | } | |
2693 | ||
2694 | /* Issue an error message and give up on doing this particular edit. */ | |
2695 | ||
2696 | static void | |
439f7bc3 | 2697 | declare_source_confusing (const char *clean_p) |
5f8037c4 RS |
2698 | { |
2699 | if (!quiet_flag) | |
2700 | { | |
2701 | if (clean_p == 0) | |
23459e15 | 2702 | notice ("%s: %d: warning: source too confusing\n", |
ab87f8c8 | 2703 | shortpath (NULL, convert_filename), last_known_line_number); |
5f8037c4 | 2704 | else |
23459e15 | 2705 | notice ("%s: %d: warning: source too confusing\n", |
ab87f8c8 JL |
2706 | shortpath (NULL, convert_filename), |
2707 | identify_lineno (clean_p)); | |
5f8037c4 RS |
2708 | } |
2709 | longjmp (source_confusion_recovery, 1); | |
2710 | } | |
2711 | ||
2712 | /* Check that a condition which is expected to be true in the original source | |
2713 | code is in fact true. If not, issue an error message and give up on | |
2714 | converting this particular source file. */ | |
2715 | ||
34e56753 | 2716 | static void |
439f7bc3 | 2717 | check_source (int cond, const char *clean_p) |
5f8037c4 RS |
2718 | { |
2719 | if (!cond) | |
2720 | declare_source_confusing (clean_p); | |
2721 | } | |
2722 | ||
2723 | /* If we think of the in-core cleaned text buffer as a memory mapped | |
2724 | file (with the variable last_known_line_start acting as sort of a | |
2725 | file pointer) then we can imagine doing "seeks" on the buffer. The | |
2726 | following routine implements a kind of "seek" operation for the in-core | |
2727 | (cleaned) copy of the source file. When finished, it returns a pointer to | |
2728 | the start of a given (numbered) line in the cleaned text buffer. | |
2729 | ||
2730 | Note that protoize only has to "seek" in the forward direction on the | |
2731 | in-core cleaned text file buffers, and it never needs to back up. | |
2732 | ||
2733 | This routine is made a little bit faster by remembering the line number | |
2734 | (and pointer value) supplied (and returned) from the previous "seek". | |
2735 | This prevents us from always having to start all over back at the top | |
2736 | of the in-core cleaned buffer again. */ | |
2737 | ||
2738 | static const char * | |
439f7bc3 | 2739 | seek_to_line (int n) |
5f8037c4 | 2740 | { |
e16acfcd | 2741 | gcc_assert (n >= last_known_line_number); |
5f8037c4 RS |
2742 | |
2743 | while (n > last_known_line_number) | |
2744 | { | |
2745 | while (*last_known_line_start != '\n') | |
23459e15 | 2746 | check_source (++last_known_line_start < clean_text_limit, 0); |
5f8037c4 RS |
2747 | last_known_line_start++; |
2748 | last_known_line_number++; | |
2749 | } | |
2750 | return last_known_line_start; | |
2751 | } | |
2752 | ||
2753 | /* Given a pointer to a character in the cleaned text buffer, return a pointer | |
abc95ed3 | 2754 | to the next non-whitespace character which follows it. */ |
5f8037c4 RS |
2755 | |
2756 | static const char * | |
439f7bc3 | 2757 | forward_to_next_token_char (const char *ptr) |
5f8037c4 | 2758 | { |
e51712db KG |
2759 | for (++ptr; ISSPACE ((const unsigned char)*ptr); |
2760 | check_source (++ptr < clean_text_limit, 0)) | |
5f8037c4 RS |
2761 | continue; |
2762 | return ptr; | |
2763 | } | |
2764 | ||
2765 | /* Copy a chunk of text of length `len' and starting at `str' to the current | |
2766 | output buffer. Note that all attempts to add stuff to the current output | |
2767 | buffer ultimately go through here. */ | |
2768 | ||
2769 | static void | |
439f7bc3 | 2770 | output_bytes (const char *str, size_t len) |
5f8037c4 RS |
2771 | { |
2772 | if ((repl_write_ptr + 1) + len >= repl_text_limit) | |
2773 | { | |
2774 | size_t new_size = (repl_text_limit - repl_text_base) << 1; | |
703ad42b | 2775 | char *new_buf = xrealloc (repl_text_base, new_size); |
5f8037c4 RS |
2776 | |
2777 | repl_write_ptr = new_buf + (repl_write_ptr - repl_text_base); | |
2778 | repl_text_base = new_buf; | |
2779 | repl_text_limit = new_buf + new_size; | |
2780 | } | |
2781 | memcpy (repl_write_ptr + 1, str, len); | |
2782 | repl_write_ptr += len; | |
2783 | } | |
2784 | ||
2785 | /* Copy all bytes (except the trailing null) of a null terminated string to | |
2786 | the current output buffer. */ | |
2787 | ||
2788 | static void | |
439f7bc3 | 2789 | output_string (const char *str) |
5f8037c4 RS |
2790 | { |
2791 | output_bytes (str, strlen (str)); | |
2792 | } | |
2793 | ||
2794 | /* Copy some characters from the original text buffer to the current output | |
2795 | buffer. | |
2796 | ||
2797 | This routine takes a pointer argument `p' which is assumed to be a pointer | |
2798 | into the cleaned text buffer. The bytes which are copied are the `original' | |
2799 | equivalents for the set of bytes between the last value of `clean_read_ptr' | |
2800 | and the argument value `p'. | |
2801 | ||
2802 | The set of bytes copied however, comes *not* from the cleaned text buffer, | |
2803 | but rather from the direct counterparts of these bytes within the original | |
2804 | text buffer. | |
2805 | ||
2806 | Thus, when this function is called, some bytes from the original text | |
2807 | buffer (which may include original comments and preprocessing directives) | |
2808 | will be copied into the output buffer. | |
2809 | ||
9faa82d8 | 2810 | Note that the request implied when this routine is called includes the |
5f8037c4 RS |
2811 | byte pointed to by the argument pointer `p'. */ |
2812 | ||
2813 | static void | |
439f7bc3 | 2814 | output_up_to (const char *p) |
5f8037c4 RS |
2815 | { |
2816 | size_t copy_length = (size_t) (p - clean_read_ptr); | |
2817 | const char *copy_start = orig_text_base+(clean_read_ptr-clean_text_base)+1; | |
2818 | ||
2819 | if (copy_length == 0) | |
2820 | return; | |
2821 | ||
2822 | output_bytes (copy_start, copy_length); | |
2823 | clean_read_ptr = p; | |
2824 | } | |
2825 | ||
2826 | /* Given a pointer to a def_dec_info record which represents some form of | |
2827 | definition of a function (perhaps a real definition, or in lieu of that | |
2828 | perhaps just a declaration with a full prototype) return true if this | |
2829 | function is one which we should avoid converting. Return false | |
2830 | otherwise. */ | |
2831 | ||
2832 | static int | |
439f7bc3 | 2833 | other_variable_style_function (const char *ansi_header) |
5f8037c4 RS |
2834 | { |
2835 | #ifdef UNPROTOIZE | |
2836 | ||
2837 | /* See if we have a stdarg function, or a function which has stdarg style | |
2838 | parameters or a stdarg style return type. */ | |
2839 | ||
9e46226d | 2840 | return strstr (ansi_header, "...") != 0; |
5f8037c4 | 2841 | |
a019653e | 2842 | #else /* !defined (UNPROTOIZE) */ |
5f8037c4 RS |
2843 | |
2844 | /* See if we have a varargs function, or a function which has varargs style | |
2845 | parameters or a varargs style return type. */ | |
2846 | ||
2847 | const char *p; | |
2848 | int len = strlen (varargs_style_indicator); | |
2849 | ||
2850 | for (p = ansi_header; p; ) | |
2851 | { | |
2852 | const char *candidate; | |
2853 | ||
9e46226d | 2854 | if ((candidate = strstr (p, varargs_style_indicator)) == 0) |
23459e15 | 2855 | return 0; |
5f8037c4 | 2856 | else |
23459e15 KH |
2857 | if (!is_id_char (candidate[-1]) && !is_id_char (candidate[len])) |
2858 | return 1; | |
2859 | else | |
2860 | p = candidate + 1; | |
5f8037c4 RS |
2861 | } |
2862 | return 0; | |
a019653e | 2863 | #endif /* !defined (UNPROTOIZE) */ |
5f8037c4 RS |
2864 | } |
2865 | ||
2866 | /* Do the editing operation specifically for a function "declaration". Note | |
2867 | that editing for function "definitions" are handled in a separate routine | |
2868 | below. */ | |
2869 | ||
2870 | static void | |
439f7bc3 AJ |
2871 | edit_fn_declaration (const def_dec_info *def_dec_p, |
2872 | const char *volatile clean_text_p) | |
5f8037c4 RS |
2873 | { |
2874 | const char *start_formals; | |
2875 | const char *end_formals; | |
2876 | const char *function_to_edit = def_dec_p->hash_entry->symbol; | |
2877 | size_t func_name_len = strlen (function_to_edit); | |
2878 | const char *end_of_fn_name; | |
2879 | ||
2880 | #ifndef UNPROTOIZE | |
2881 | ||
2882 | const f_list_chain_item *this_f_list_chain_item; | |
2883 | const def_dec_info *definition = def_dec_p->definition; | |
2884 | ||
2885 | /* If we are protoizing, and if we found no corresponding definition for | |
2886 | this particular function declaration, then just leave this declaration | |
2887 | exactly as it is. */ | |
2888 | ||
2889 | if (!definition) | |
2890 | return; | |
2891 | ||
2892 | /* If we are protoizing, and if the corresponding definition that we found | |
2893 | for this particular function declaration defined an old style varargs | |
2894 | function, then we want to issue a warning and just leave this function | |
2895 | declaration unconverted. */ | |
2896 | ||
2897 | if (other_variable_style_function (definition->ansi_decl)) | |
2898 | { | |
2899 | if (!quiet_flag) | |
23459e15 | 2900 | notice ("%s: %d: warning: varargs function declaration not converted\n", |
ab87f8c8 JL |
2901 | shortpath (NULL, def_dec_p->file->hash_entry->symbol), |
2902 | def_dec_p->line); | |
5f8037c4 RS |
2903 | return; |
2904 | } | |
2905 | ||
a019653e | 2906 | #endif /* !defined (UNPROTOIZE) */ |
5f8037c4 RS |
2907 | |
2908 | /* Setup here to recover from confusing source code detected during this | |
2909 | particular "edit". */ | |
2910 | ||
2911 | save_pointers (); | |
2912 | if (setjmp (source_confusion_recovery)) | |
2913 | { | |
2914 | restore_pointers (); | |
9e637a26 | 2915 | notice ("%s: declaration of function '%s' not converted\n", |
ab87f8c8 | 2916 | pname, function_to_edit); |
5f8037c4 RS |
2917 | return; |
2918 | } | |
2919 | ||
2920 | /* We are editing a function declaration. The line number we did a seek to | |
2921 | contains the comma or semicolon which follows the declaration. Our job | |
2922 | now is to scan backwards looking for the function name. This name *must* | |
2923 | be followed by open paren (ignoring whitespace, of course). We need to | |
2924 | replace everything between that open paren and the corresponding closing | |
2925 | paren. If we are protoizing, we need to insert the prototype-style | |
2926 | formals lists. If we are unprotoizing, we need to just delete everything | |
2927 | between the pairs of opening and closing parens. */ | |
2928 | ||
2929 | /* First move up to the end of the line. */ | |
2930 | ||
2931 | while (*clean_text_p != '\n') | |
2932 | check_source (++clean_text_p < clean_text_limit, 0); | |
2933 | clean_text_p--; /* Point to just before the newline character. */ | |
2934 | ||
2935 | /* Now we can scan backwards for the function name. */ | |
2936 | ||
2937 | do | |
2938 | { | |
2939 | for (;;) | |
23459e15 KH |
2940 | { |
2941 | /* Scan leftwards until we find some character which can be | |
2942 | part of an identifier. */ | |
2943 | ||
2944 | while (!is_id_char (*clean_text_p)) | |
2945 | check_source (--clean_text_p > clean_read_ptr, 0); | |
5f8037c4 | 2946 | |
23459e15 KH |
2947 | /* Scan backwards until we find a char that cannot be part of an |
2948 | identifier. */ | |
5f8037c4 | 2949 | |
23459e15 KH |
2950 | while (is_id_char (*clean_text_p)) |
2951 | check_source (--clean_text_p > clean_read_ptr, 0); | |
5f8037c4 | 2952 | |
23459e15 KH |
2953 | /* Having found an "id break", see if the following id is the one |
2954 | that we are looking for. If so, then exit from this loop. */ | |
5f8037c4 | 2955 | |
23459e15 KH |
2956 | if (!strncmp (clean_text_p+1, function_to_edit, func_name_len)) |
2957 | { | |
2958 | char ch = *(clean_text_p + 1 + func_name_len); | |
5f8037c4 | 2959 | |
23459e15 KH |
2960 | /* Must also check to see that the name in the source text |
2961 | ends where it should (in order to prevent bogus matches | |
2962 | on similar but longer identifiers. */ | |
5f8037c4 | 2963 | |
23459e15 KH |
2964 | if (! is_id_char (ch)) |
2965 | break; /* exit from loop */ | |
2966 | } | |
2967 | } | |
5f8037c4 | 2968 | |
5f8037c4 | 2969 | /* We have now found the first perfect match for the function name in |
23459e15 KH |
2970 | our backward search. This may or may not be the actual function |
2971 | name at the start of the actual function declaration (i.e. we could | |
2972 | have easily been mislead). We will try to avoid getting fooled too | |
2973 | often by looking forward for the open paren which should follow the | |
2974 | identifier we just found. We ignore whitespace while hunting. If | |
2975 | the next non-whitespace byte we see is *not* an open left paren, | |
2976 | then we must assume that we have been fooled and we start over | |
2977 | again accordingly. Note that there is no guarantee, that even if | |
2978 | we do see the open paren, that we are in the right place. | |
2979 | Programmers do the strangest things sometimes! */ | |
2980 | ||
5f8037c4 RS |
2981 | end_of_fn_name = clean_text_p + strlen (def_dec_p->hash_entry->symbol); |
2982 | start_formals = forward_to_next_token_char (end_of_fn_name); | |
2983 | } | |
2984 | while (*start_formals != '('); | |
2985 | ||
2986 | /* start_of_formals now points to the opening left paren which immediately | |
2987 | follows the name of the function. */ | |
2988 | ||
2989 | /* Note that there may be several formals lists which need to be modified | |
2990 | due to the possibility that the return type of this function is a | |
2991 | pointer-to-function type. If there are several formals lists, we | |
2992 | convert them in left-to-right order here. */ | |
2993 | ||
2994 | #ifndef UNPROTOIZE | |
2995 | this_f_list_chain_item = definition->f_list_chain; | |
a019653e | 2996 | #endif /* !defined (UNPROTOIZE) */ |
5f8037c4 RS |
2997 | |
2998 | for (;;) | |
2999 | { | |
3000 | { | |
23459e15 KH |
3001 | int depth; |
3002 | ||
3003 | end_formals = start_formals + 1; | |
3004 | depth = 1; | |
3005 | for (; depth; check_source (++end_formals < clean_text_limit, 0)) | |
3006 | { | |
3007 | switch (*end_formals) | |
3008 | { | |
3009 | case '(': | |
3010 | depth++; | |
3011 | break; | |
3012 | case ')': | |
3013 | depth--; | |
3014 | break; | |
3015 | } | |
3016 | } | |
3017 | end_formals--; | |
5f8037c4 RS |
3018 | } |
3019 | ||
3020 | /* end_formals now points to the closing right paren of the formals | |
23459e15 KH |
3021 | list whose left paren is pointed to by start_formals. */ |
3022 | ||
5f8037c4 | 3023 | /* Now, if we are protoizing, we insert the new ANSI-style formals list |
23459e15 KH |
3024 | attached to the associated definition of this function. If however |
3025 | we are unprotoizing, then we simply delete any formals list which | |
3026 | may be present. */ | |
3027 | ||
5f8037c4 RS |
3028 | output_up_to (start_formals); |
3029 | #ifndef UNPROTOIZE | |
3030 | if (this_f_list_chain_item) | |
23459e15 KH |
3031 | { |
3032 | output_string (this_f_list_chain_item->formals_list); | |
3033 | this_f_list_chain_item = this_f_list_chain_item->chain_next; | |
3034 | } | |
5f8037c4 | 3035 | else |
23459e15 KH |
3036 | { |
3037 | if (!quiet_flag) | |
9e637a26 | 3038 | notice ("%s: warning: too many parameter lists in declaration of '%s'\n", |
ab87f8c8 | 3039 | pname, def_dec_p->hash_entry->symbol); |
23459e15 KH |
3040 | check_source (0, end_formals); /* leave the declaration intact */ |
3041 | } | |
a019653e | 3042 | #endif /* !defined (UNPROTOIZE) */ |
5f8037c4 RS |
3043 | clean_read_ptr = end_formals - 1; |
3044 | ||
3045 | /* Now see if it looks like there may be another formals list associated | |
23459e15 KH |
3046 | with the function declaration that we are converting (following the |
3047 | formals list that we just converted. */ | |
5f8037c4 RS |
3048 | |
3049 | { | |
23459e15 | 3050 | const char *another_r_paren = forward_to_next_token_char (end_formals); |
5f8037c4 | 3051 | |
23459e15 KH |
3052 | if ((*another_r_paren != ')') |
3053 | || (*(start_formals = forward_to_next_token_char (another_r_paren)) != '(')) | |
3054 | { | |
5f8037c4 | 3055 | #ifndef UNPROTOIZE |
23459e15 KH |
3056 | if (this_f_list_chain_item) |
3057 | { | |
3058 | if (!quiet_flag) | |
9e637a26 | 3059 | notice ("\n%s: warning: too few parameter lists in declaration of '%s'\n", |
ab87f8c8 | 3060 | pname, def_dec_p->hash_entry->symbol); |
23459e15 KH |
3061 | check_source (0, start_formals); /* leave the decl intact */ |
3062 | } | |
a019653e | 3063 | #endif /* !defined (UNPROTOIZE) */ |
23459e15 KH |
3064 | break; |
3065 | ||
3066 | } | |
5f8037c4 RS |
3067 | } |
3068 | ||
3069 | /* There does appear to be yet another formals list, so loop around | |
23459e15 | 3070 | again, and convert it also. */ |
5f8037c4 RS |
3071 | } |
3072 | } | |
3073 | ||
3074 | /* Edit a whole group of formals lists, starting with the rightmost one | |
3075 | from some set of formals lists. This routine is called once (from the | |
3076 | outside) for each function declaration which is converted. It is | |
3077 | recursive however, and it calls itself once for each remaining formal | |
3078 | list that lies to the left of the one it was originally called to work | |
3079 | on. Thus, a whole set gets done in right-to-left order. | |
3080 | ||
40f03658 | 3081 | This routine returns nonzero if it thinks that it should not be trying |
5f8037c4 RS |
3082 | to convert this particular function definition (because the name of the |
3083 | function doesn't match the one expected). */ | |
3084 | ||
3085 | static int | |
439f7bc3 AJ |
3086 | edit_formals_lists (const char *end_formals, unsigned int f_list_count, |
3087 | const def_dec_info *def_dec_p) | |
5f8037c4 RS |
3088 | { |
3089 | const char *start_formals; | |
3090 | int depth; | |
3091 | ||
3092 | start_formals = end_formals - 1; | |
3093 | depth = 1; | |
3094 | for (; depth; check_source (--start_formals > clean_read_ptr, 0)) | |
3095 | { | |
3096 | switch (*start_formals) | |
23459e15 KH |
3097 | { |
3098 | case '(': | |
3099 | depth--; | |
3100 | break; | |
3101 | case ')': | |
3102 | depth++; | |
3103 | break; | |
3104 | } | |
5f8037c4 RS |
3105 | } |
3106 | start_formals++; | |
3107 | ||
3108 | /* start_formals now points to the opening left paren of the formals list. */ | |
3109 | ||
3110 | f_list_count--; | |
3111 | ||
3112 | if (f_list_count) | |
3113 | { | |
3114 | const char *next_end; | |
3115 | ||
3116 | /* There should be more formal lists to the left of here. */ | |
3117 | ||
3118 | next_end = start_formals - 1; | |
3119 | check_source (next_end > clean_read_ptr, 0); | |
e51712db | 3120 | while (ISSPACE ((const unsigned char)*next_end)) |
23459e15 | 3121 | check_source (--next_end > clean_read_ptr, 0); |
5f8037c4 RS |
3122 | check_source (*next_end == ')', next_end); |
3123 | check_source (--next_end > clean_read_ptr, 0); | |
3124 | check_source (*next_end == ')', next_end); | |
3125 | if (edit_formals_lists (next_end, f_list_count, def_dec_p)) | |
23459e15 | 3126 | return 1; |
5f8037c4 RS |
3127 | } |
3128 | ||
3129 | /* Check that the function name in the header we are working on is the same | |
3130 | as the one we would expect to find. If not, issue a warning and return | |
40f03658 | 3131 | nonzero. */ |
5f8037c4 RS |
3132 | |
3133 | if (f_list_count == 0) | |
3134 | { | |
3135 | const char *expected = def_dec_p->hash_entry->symbol; | |
3136 | const char *func_name_start; | |
3137 | const char *func_name_limit; | |
3138 | size_t func_name_len; | |
3139 | ||
e51712db KG |
3140 | for (func_name_limit = start_formals-1; |
3141 | ISSPACE ((const unsigned char)*func_name_limit); ) | |
23459e15 | 3142 | check_source (--func_name_limit > clean_read_ptr, 0); |
5f8037c4 RS |
3143 | |
3144 | for (func_name_start = func_name_limit++; | |
23459e15 KH |
3145 | is_id_char (*func_name_start); |
3146 | func_name_start--) | |
3147 | check_source (func_name_start > clean_read_ptr, 0); | |
5f8037c4 RS |
3148 | func_name_start++; |
3149 | func_name_len = func_name_limit - func_name_start; | |
3150 | if (func_name_len == 0) | |
23459e15 | 3151 | check_source (0, func_name_start); |
5f8037c4 | 3152 | if (func_name_len != strlen (expected) |
a2b22788 | 3153 | || strncmp (func_name_start, expected, func_name_len)) |
23459e15 | 3154 | { |
9e637a26 | 3155 | notice ("%s: %d: warning: found '%s' but expected '%s'\n", |
ab87f8c8 JL |
3156 | shortpath (NULL, def_dec_p->file->hash_entry->symbol), |
3157 | identify_lineno (func_name_start), | |
3158 | dupnstr (func_name_start, func_name_len), | |
3159 | expected); | |
23459e15 KH |
3160 | return 1; |
3161 | } | |
5f8037c4 RS |
3162 | } |
3163 | ||
3164 | output_up_to (start_formals); | |
3165 | ||
3166 | #ifdef UNPROTOIZE | |
3167 | if (f_list_count == 0) | |
3168 | output_string (def_dec_p->formal_names); | |
a019653e | 3169 | #else /* !defined (UNPROTOIZE) */ |
5f8037c4 RS |
3170 | { |
3171 | unsigned f_list_depth; | |
3172 | const f_list_chain_item *flci_p = def_dec_p->f_list_chain; | |
3173 | ||
3174 | /* At this point, the current value of f_list count says how many | |
3175 | links we have to follow through the f_list_chain to get to the | |
3176 | particular formals list that we need to output next. */ | |
3177 | ||
3178 | for (f_list_depth = 0; f_list_depth < f_list_count; f_list_depth++) | |
3179 | flci_p = flci_p->chain_next; | |
3180 | output_string (flci_p->formals_list); | |
3181 | } | |
a019653e | 3182 | #endif /* !defined (UNPROTOIZE) */ |
5f8037c4 RS |
3183 | |
3184 | clean_read_ptr = end_formals - 1; | |
3185 | return 0; | |
3186 | } | |
3187 | ||
0f41302f MS |
3188 | /* Given a pointer to a byte in the clean text buffer which points to |
3189 | the beginning of a line that contains a "follower" token for a | |
3190 | function definition header, do whatever is necessary to find the | |
3191 | right closing paren for the rightmost formals list of the function | |
3192 | definition header. */ | |
5f8037c4 RS |
3193 | |
3194 | static const char * | |
439f7bc3 | 3195 | find_rightmost_formals_list (const char *clean_text_p) |
5f8037c4 RS |
3196 | { |
3197 | const char *end_formals; | |
3198 | ||
3199 | /* We are editing a function definition. The line number we did a seek | |
3200 | to contains the first token which immediately follows the entire set of | |
3201 | formals lists which are part of this particular function definition | |
3202 | header. | |
3203 | ||
3204 | Our job now is to scan leftwards in the clean text looking for the | |
3205 | right-paren which is at the end of the function header's rightmost | |
3206 | formals list. | |
3207 | ||
3208 | If we ignore whitespace, this right paren should be the first one we | |
3209 | see which is (ignoring whitespace) immediately followed either by the | |
3210 | open curly-brace beginning the function body or by an alphabetic | |
3211 | character (in the case where the function definition is in old (K&R) | |
3212 | style and there are some declarations of formal parameters). */ | |
3213 | ||
3214 | /* It is possible that the right paren we are looking for is on the | |
3215 | current line (together with its following token). Just in case that | |
3216 | might be true, we start out here by skipping down to the right end of | |
3217 | the current line before starting our scan. */ | |
3218 | ||
3219 | for (end_formals = clean_text_p; *end_formals != '\n'; end_formals++) | |
3220 | continue; | |
3221 | end_formals--; | |
3222 | ||
34e56753 RS |
3223 | #ifdef UNPROTOIZE |
3224 | ||
5f8037c4 RS |
3225 | /* Now scan backwards while looking for the right end of the rightmost |
3226 | formals list associated with this function definition. */ | |
3227 | ||
34e56753 RS |
3228 | { |
3229 | char ch; | |
3230 | const char *l_brace_p; | |
3231 | ||
3232 | /* Look leftward and try to find a right-paren. */ | |
3233 | ||
3234 | while (*end_formals != ')') | |
3235 | { | |
79c9824e KG |
3236 | if (ISSPACE ((unsigned char)*end_formals)) |
3237 | while (ISSPACE ((unsigned char)*end_formals)) | |
34e56753 RS |
3238 | check_source (--end_formals > clean_read_ptr, 0); |
3239 | else | |
3240 | check_source (--end_formals > clean_read_ptr, 0); | |
3241 | } | |
3242 | ||
3243 | ch = *(l_brace_p = forward_to_next_token_char (end_formals)); | |
3244 | /* Since we are unprotoizing an ANSI-style (prototyped) function | |
3245 | definition, there had better not be anything (except whitespace) | |
3246 | between the end of the ANSI formals list and the beginning of the | |
3247 | function body (i.e. the '{'). */ | |
3248 | ||
3249 | check_source (ch == '{', l_brace_p); | |
3250 | } | |
3251 | ||
a019653e | 3252 | #else /* !defined (UNPROTOIZE) */ |
34e56753 RS |
3253 | |
3254 | /* Now scan backwards while looking for the right end of the rightmost | |
3255 | formals list associated with this function definition. */ | |
3256 | ||
3257 | while (1) | |
5f8037c4 RS |
3258 | { |
3259 | char ch; | |
3260 | const char *l_brace_p; | |
3261 | ||
3262 | /* Look leftward and try to find a right-paren. */ | |
3263 | ||
3264 | while (*end_formals != ')') | |
23459e15 KH |
3265 | { |
3266 | if (ISSPACE ((const unsigned char)*end_formals)) | |
3267 | while (ISSPACE ((const unsigned char)*end_formals)) | |
3268 | check_source (--end_formals > clean_read_ptr, 0); | |
3269 | else | |
3270 | check_source (--end_formals > clean_read_ptr, 0); | |
3271 | } | |
5f8037c4 RS |
3272 | |
3273 | ch = *(l_brace_p = forward_to_next_token_char (end_formals)); | |
3274 | ||
5f8037c4 | 3275 | /* Since it is possible that we found a right paren before the starting |
23459e15 KH |
3276 | '{' of the body which IS NOT the one at the end of the real K&R |
3277 | formals list (say for instance, we found one embedded inside one of | |
3278 | the old K&R formal parameter declarations) we have to check to be | |
3279 | sure that this is in fact the right paren that we were looking for. | |
5f8037c4 | 3280 | |
23459e15 KH |
3281 | The one we were looking for *must* be followed by either a '{' or |
3282 | by an alphabetic character, while others *cannot* validly be followed | |
3283 | by such characters. */ | |
5f8037c4 | 3284 | |
cf403648 | 3285 | if ((ch == '{') || ISALPHA ((unsigned char) ch)) |
23459e15 | 3286 | break; |
5f8037c4 RS |
3287 | |
3288 | /* At this point, we have found a right paren, but we know that it is | |
23459e15 KH |
3289 | not the one we were looking for, so backup one character and keep |
3290 | looking. */ | |
5f8037c4 RS |
3291 | |
3292 | check_source (--end_formals > clean_read_ptr, 0); | |
34e56753 | 3293 | } |
5f8037c4 | 3294 | |
a019653e | 3295 | #endif /* !defined (UNPROTOIZE) */ |
5f8037c4 | 3296 | |
5f8037c4 RS |
3297 | return end_formals; |
3298 | } | |
3299 | ||
3300 | #ifndef UNPROTOIZE | |
3301 | ||
3302 | /* Insert into the output file a totally new declaration for a function | |
3303 | which (up until now) was being called from within the current block | |
3304 | without having been declared at any point such that the declaration | |
3305 | was visible (i.e. in scope) at the point of the call. | |
3306 | ||
3307 | We need to add in explicit declarations for all such function calls | |
3308 | in order to get the full benefit of prototype-based function call | |
3309 | parameter type checking. */ | |
3310 | ||
3311 | static void | |
439f7bc3 | 3312 | add_local_decl (const def_dec_info *def_dec_p, const char *clean_text_p) |
5f8037c4 RS |
3313 | { |
3314 | const char *start_of_block; | |
3315 | const char *function_to_edit = def_dec_p->hash_entry->symbol; | |
3316 | ||
3317 | /* Don't insert new local explicit declarations unless explicitly requested | |
3318 | to do so. */ | |
3319 | ||
3320 | if (!local_flag) | |
3321 | return; | |
3322 | ||
3323 | /* Setup here to recover from confusing source code detected during this | |
3324 | particular "edit". */ | |
3325 | ||
3326 | save_pointers (); | |
3327 | if (setjmp (source_confusion_recovery)) | |
3328 | { | |
3329 | restore_pointers (); | |
9e637a26 | 3330 | notice ("%s: local declaration for function '%s' not inserted\n", |
ab87f8c8 | 3331 | pname, function_to_edit); |
5f8037c4 RS |
3332 | return; |
3333 | } | |
3334 | ||
3335 | /* We have already done a seek to the start of the line which should | |
3336 | contain *the* open curly brace which begins the block in which we need | |
3337 | to insert an explicit function declaration (to replace the implicit one). | |
3338 | ||
3339 | Now we scan that line, starting from the left, until we find the | |
3340 | open curly brace we are looking for. Note that there may actually be | |
3341 | multiple open curly braces on the given line, but we will be happy | |
3342 | with the leftmost one no matter what. */ | |
3343 | ||
3344 | start_of_block = clean_text_p; | |
3345 | while (*start_of_block != '{' && *start_of_block != '\n') | |
3346 | check_source (++start_of_block < clean_text_limit, 0); | |
3347 | ||
3348 | /* Note that the line from the original source could possibly | |
3349 | contain *no* open curly braces! This happens if the line contains | |
3350 | a macro call which expands into a chunk of text which includes a | |
3351 | block (and that block's associated open and close curly braces). | |
3352 | In cases like this, we give up, issue a warning, and do nothing. */ | |
3353 | ||
3354 | if (*start_of_block != '{') | |
3355 | { | |
3356 | if (!quiet_flag) | |
9e637a26 | 3357 | notice ("\n%s: %d: warning: can't add declaration of '%s' into macro call\n", |
23459e15 KH |
3358 | def_dec_p->file->hash_entry->symbol, def_dec_p->line, |
3359 | def_dec_p->hash_entry->symbol); | |
5f8037c4 RS |
3360 | return; |
3361 | } | |
3362 | ||
3363 | /* Figure out what a nice (pretty) indentation would be for the new | |
3364 | declaration we are adding. In order to do this, we must scan forward | |
3365 | from the '{' until we find the first line which starts with some | |
3366 | non-whitespace characters (i.e. real "token" material). */ | |
3367 | ||
3368 | { | |
3369 | const char *ep = forward_to_next_token_char (start_of_block) - 1; | |
3370 | const char *sp; | |
3371 | ||
3372 | /* Now we have ep pointing at the rightmost byte of some existing indent | |
3373 | stuff. At least that is the hope. | |
3374 | ||
3375 | We can now just scan backwards and find the left end of the existing | |
3376 | indentation string, and then copy it to the output buffer. */ | |
3377 | ||
e51712db | 3378 | for (sp = ep; ISSPACE ((const unsigned char)*sp) && *sp != '\n'; sp--) |
5f8037c4 RS |
3379 | continue; |
3380 | ||
3381 | /* Now write out the open { which began this block, and any following | |
3382 | trash up to and including the last byte of the existing indent that | |
3383 | we just found. */ | |
3384 | ||
3385 | output_up_to (ep); | |
23459e15 | 3386 | |
5f8037c4 RS |
3387 | /* Now we go ahead and insert the new declaration at this point. |
3388 | ||
3389 | If the definition of the given function is in the same file that we | |
3390 | are currently editing, and if its full ANSI declaration normally | |
3391 | would start with the keyword `extern', suppress the `extern'. */ | |
23459e15 | 3392 | |
5f8037c4 RS |
3393 | { |
3394 | const char *decl = def_dec_p->definition->ansi_decl; | |
23459e15 | 3395 | |
5f8037c4 | 3396 | if ((*decl == 'e') && (def_dec_p->file == def_dec_p->definition->file)) |
23459e15 | 3397 | decl += 7; |
5f8037c4 RS |
3398 | output_string (decl); |
3399 | } | |
3400 | ||
d45cf215 | 3401 | /* Finally, write out a new indent string, just like the preceding one |
5f8037c4 RS |
3402 | that we found. This will typically include a newline as the first |
3403 | character of the indent string. */ | |
3404 | ||
3405 | output_bytes (sp, (size_t) (ep - sp) + 1); | |
3406 | } | |
3407 | } | |
3408 | ||
3409 | /* Given a pointer to a file_info record, and a pointer to the beginning | |
3410 | of a line (in the clean text buffer) which is assumed to contain the | |
3411 | first "follower" token for the first function definition header in the | |
3412 | given file, find a good place to insert some new global function | |
3413 | declarations (which will replace scattered and imprecise implicit ones) | |
3414 | and then insert the new explicit declaration at that point in the file. */ | |
3415 | ||
3416 | static void | |
439f7bc3 | 3417 | add_global_decls (const file_info *file_p, const char *clean_text_p) |
5f8037c4 RS |
3418 | { |
3419 | const def_dec_info *dd_p; | |
3420 | const char *scan_p; | |
3421 | ||
3422 | /* Setup here to recover from confusing source code detected during this | |
3423 | particular "edit". */ | |
3424 | ||
3425 | save_pointers (); | |
3426 | if (setjmp (source_confusion_recovery)) | |
3427 | { | |
3428 | restore_pointers (); | |
9e637a26 | 3429 | notice ("%s: global declarations for file '%s' not inserted\n", |
ab87f8c8 | 3430 | pname, shortpath (NULL, file_p->hash_entry->symbol)); |
5f8037c4 RS |
3431 | return; |
3432 | } | |
3433 | ||
3434 | /* Start by finding a good location for adding the new explicit function | |
3435 | declarations. To do this, we scan backwards, ignoring whitespace | |
3436 | and comments and other junk until we find either a semicolon, or until | |
3437 | we hit the beginning of the file. */ | |
3438 | ||
3439 | scan_p = find_rightmost_formals_list (clean_text_p); | |
3440 | for (;; --scan_p) | |
3441 | { | |
3442 | if (scan_p < clean_text_base) | |
23459e15 | 3443 | break; |
5f8037c4 RS |
3444 | check_source (scan_p > clean_read_ptr, 0); |
3445 | if (*scan_p == ';') | |
23459e15 | 3446 | break; |
5f8037c4 RS |
3447 | } |
3448 | ||
3449 | /* scan_p now points either to a semicolon, or to just before the start | |
3450 | of the whole file. */ | |
3451 | ||
3452 | /* Now scan forward for the first non-whitespace character. In theory, | |
3453 | this should be the first character of the following function definition | |
0f41302f | 3454 | header. We will put in the added declarations just prior to that. */ |
5f8037c4 RS |
3455 | |
3456 | scan_p++; | |
e51712db | 3457 | while (ISSPACE ((const unsigned char)*scan_p)) |
5f8037c4 RS |
3458 | scan_p++; |
3459 | scan_p--; | |
3460 | ||
3461 | output_up_to (scan_p); | |
3462 | ||
3463 | /* Now write out full prototypes for all of the things that had been | |
3464 | implicitly declared in this file (but only those for which we were | |
3465 | actually able to find unique matching definitions). Avoid duplicates | |
6d2f8887 | 3466 | by marking things that we write out as we go. */ |
5f8037c4 RS |
3467 | |
3468 | { | |
3469 | int some_decls_added = 0; | |
23459e15 | 3470 | |
5f8037c4 RS |
3471 | for (dd_p = file_p->defs_decs; dd_p; dd_p = dd_p->next_in_file) |
3472 | if (dd_p->is_implicit && dd_p->definition && !dd_p->definition->written) | |
23459e15 KH |
3473 | { |
3474 | const char *decl = dd_p->definition->ansi_decl; | |
3475 | ||
3476 | /* If the function for which we are inserting a declaration is | |
3477 | actually defined later in the same file, then suppress the | |
3478 | leading `extern' keyword (if there is one). */ | |
3479 | ||
3480 | if (*decl == 'e' && (dd_p->file == dd_p->definition->file)) | |
3481 | decl += 7; | |
3482 | ||
3483 | output_string ("\n"); | |
3484 | output_string (decl); | |
3485 | some_decls_added = 1; | |
3486 | ((NONCONST def_dec_info *) dd_p->definition)->written = 1; | |
3487 | } | |
5f8037c4 RS |
3488 | if (some_decls_added) |
3489 | output_string ("\n\n"); | |
3490 | } | |
3491 | ||
3492 | /* Unmark all of the definitions that we just marked. */ | |
3493 | ||
3494 | for (dd_p = file_p->defs_decs; dd_p; dd_p = dd_p->next_in_file) | |
3495 | if (dd_p->definition) | |
3496 | ((NONCONST def_dec_info *) dd_p->definition)->written = 0; | |
3497 | } | |
3498 | ||
a019653e | 3499 | #endif /* !defined (UNPROTOIZE) */ |
5f8037c4 RS |
3500 | |
3501 | /* Do the editing operation specifically for a function "definition". Note | |
3502 | that editing operations for function "declarations" are handled by a | |
3503 | separate routine above. */ | |
3504 | ||
3505 | static void | |
439f7bc3 | 3506 | edit_fn_definition (const def_dec_info *def_dec_p, const char *clean_text_p) |
5f8037c4 RS |
3507 | { |
3508 | const char *end_formals; | |
3509 | const char *function_to_edit = def_dec_p->hash_entry->symbol; | |
3510 | ||
3511 | /* Setup here to recover from confusing source code detected during this | |
3512 | particular "edit". */ | |
3513 | ||
3514 | save_pointers (); | |
3515 | if (setjmp (source_confusion_recovery)) | |
3516 | { | |
3517 | restore_pointers (); | |
9e637a26 | 3518 | notice ("%s: definition of function '%s' not converted\n", |
ab87f8c8 | 3519 | pname, function_to_edit); |
5f8037c4 RS |
3520 | return; |
3521 | } | |
3522 | ||
3523 | end_formals = find_rightmost_formals_list (clean_text_p); | |
3524 | ||
3525 | /* end_of_formals now points to the closing right paren of the rightmost | |
3526 | formals list which is actually part of the `header' of the function | |
3527 | definition that we are converting. */ | |
3528 | ||
3529 | /* If the header of this function definition looks like it declares a | |
3530 | function with a variable number of arguments, and if the way it does | |
3531 | that is different from that way we would like it (i.e. varargs vs. | |
3532 | stdarg) then issue a warning and leave the header unconverted. */ | |
23459e15 | 3533 | |
5f8037c4 RS |
3534 | if (other_variable_style_function (def_dec_p->ansi_decl)) |
3535 | { | |
3536 | if (!quiet_flag) | |
23459e15 | 3537 | notice ("%s: %d: warning: definition of %s not converted\n", |
ab87f8c8 | 3538 | shortpath (NULL, def_dec_p->file->hash_entry->symbol), |
23459e15 | 3539 | identify_lineno (end_formals), |
ab87f8c8 | 3540 | other_var_style); |
5f8037c4 RS |
3541 | output_up_to (end_formals); |
3542 | return; | |
3543 | } | |
3544 | ||
3545 | if (edit_formals_lists (end_formals, def_dec_p->f_list_count, def_dec_p)) | |
3546 | { | |
3547 | restore_pointers (); | |
9e637a26 | 3548 | notice ("%s: definition of function '%s' not converted\n", |
ab87f8c8 | 3549 | pname, function_to_edit); |
5f8037c4 RS |
3550 | return; |
3551 | } | |
3552 | ||
3553 | /* Have to output the last right paren because this never gets flushed by | |
3554 | edit_formals_list. */ | |
3555 | ||
3556 | output_up_to (end_formals); | |
3557 | ||
3558 | #ifdef UNPROTOIZE | |
3559 | { | |
3560 | const char *decl_p; | |
3561 | const char *semicolon_p; | |
3562 | const char *limit_p; | |
3563 | const char *scan_p; | |
3564 | int had_newlines = 0; | |
3565 | ||
3566 | /* Now write out the K&R style formal declarations, one per line. */ | |
3567 | ||
3568 | decl_p = def_dec_p->formal_decls; | |
3569 | limit_p = decl_p + strlen (decl_p); | |
3570 | for (;decl_p < limit_p; decl_p = semicolon_p + 2) | |
3571 | { | |
23459e15 KH |
3572 | for (semicolon_p = decl_p; *semicolon_p != ';'; semicolon_p++) |
3573 | continue; | |
3574 | output_string ("\n"); | |
3575 | output_string (indent_string); | |
3576 | output_bytes (decl_p, (size_t) ((semicolon_p + 1) - decl_p)); | |
5f8037c4 RS |
3577 | } |
3578 | ||
3579 | /* If there are no newlines between the end of the formals list and the | |
3580 | start of the body, we should insert one now. */ | |
3581 | ||
3582 | for (scan_p = end_formals+1; *scan_p != '{'; ) | |
3583 | { | |
23459e15 KH |
3584 | if (*scan_p == '\n') |
3585 | { | |
3586 | had_newlines = 1; | |
3587 | break; | |
3588 | } | |
3589 | check_source (++scan_p < clean_text_limit, 0); | |
5f8037c4 RS |
3590 | } |
3591 | if (!had_newlines) | |
3592 | output_string ("\n"); | |
3593 | } | |
a019653e | 3594 | #else /* !defined (UNPROTOIZE) */ |
9faa82d8 | 3595 | /* If we are protoizing, there may be some flotsam & jetsam (like comments |
5f8037c4 RS |
3596 | and preprocessing directives) after the old formals list but before |
3597 | the following { and we would like to preserve that stuff while effectively | |
3598 | deleting the existing K&R formal parameter declarations. We do so here | |
3599 | in a rather tricky way. Basically, we white out any stuff *except* | |
3600 | the comments/pp-directives in the original text buffer, then, if there | |
3601 | is anything in this area *other* than whitespace, we output it. */ | |
3602 | { | |
3603 | const char *end_formals_orig; | |
3604 | const char *start_body; | |
3605 | const char *start_body_orig; | |
3606 | const char *scan; | |
3607 | const char *scan_orig; | |
f79e449b | 3608 | int have_flotsam = 0; |
5f8037c4 RS |
3609 | int have_newlines = 0; |
3610 | ||
3611 | for (start_body = end_formals + 1; *start_body != '{';) | |
3612 | check_source (++start_body < clean_text_limit, 0); | |
3613 | ||
3614 | end_formals_orig = orig_text_base + (end_formals - clean_text_base); | |
3615 | start_body_orig = orig_text_base + (start_body - clean_text_base); | |
3616 | scan = end_formals + 1; | |
3617 | scan_orig = end_formals_orig + 1; | |
3618 | for (; scan < start_body; scan++, scan_orig++) | |
3619 | { | |
23459e15 KH |
3620 | if (*scan == *scan_orig) |
3621 | { | |
3622 | have_newlines |= (*scan_orig == '\n'); | |
3623 | /* Leave identical whitespace alone. */ | |
3624 | if (!ISSPACE ((const unsigned char)*scan_orig)) | |
3625 | *((NONCONST char *) scan_orig) = ' '; /* identical - so whiteout */ | |
3626 | } | |
3627 | else | |
3628 | have_flotsam = 1; | |
5f8037c4 | 3629 | } |
f79e449b | 3630 | if (have_flotsam) |
5f8037c4 RS |
3631 | output_bytes (end_formals_orig + 1, |
3632 | (size_t) (start_body_orig - end_formals_orig) - 1); | |
3633 | else | |
3634 | if (have_newlines) | |
23459e15 | 3635 | output_string ("\n"); |
5f8037c4 | 3636 | else |
23459e15 | 3637 | output_string (" "); |
5f8037c4 RS |
3638 | clean_read_ptr = start_body - 1; |
3639 | } | |
a019653e | 3640 | #endif /* !defined (UNPROTOIZE) */ |
5f8037c4 RS |
3641 | } |
3642 | ||
3643 | /* Clean up the clean text buffer. Do this by converting comments and | |
d17e26f7 | 3644 | preprocessing directives into spaces. Also convert line continuations |
5f8037c4 RS |
3645 | into whitespace. Also, whiteout string and character literals. */ |
3646 | ||
3647 | static void | |
439f7bc3 | 3648 | do_cleaning (char *new_clean_text_base, const char *new_clean_text_limit) |
5f8037c4 RS |
3649 | { |
3650 | char *scan_p; | |
3651 | int non_whitespace_since_newline = 0; | |
3652 | ||
3653 | for (scan_p = new_clean_text_base; scan_p < new_clean_text_limit; scan_p++) | |
3654 | { | |
3655 | switch (*scan_p) | |
23459e15 KH |
3656 | { |
3657 | case '/': /* Handle comments. */ | |
3658 | if (scan_p[1] != '*') | |
3659 | goto regular; | |
3660 | non_whitespace_since_newline = 1; | |
3661 | scan_p[0] = ' '; | |
3662 | scan_p[1] = ' '; | |
3663 | scan_p += 2; | |
3664 | while (scan_p[1] != '/' || scan_p[0] != '*') | |
3665 | { | |
3666 | if (!ISSPACE ((const unsigned char)*scan_p)) | |
3667 | *scan_p = ' '; | |
e16acfcd NS |
3668 | ++scan_p; |
3669 | gcc_assert (scan_p < new_clean_text_limit); | |
23459e15 KH |
3670 | } |
3671 | *scan_p++ = ' '; | |
3672 | *scan_p = ' '; | |
3673 | break; | |
3674 | ||
3675 | case '#': /* Handle pp directives. */ | |
3676 | if (non_whitespace_since_newline) | |
3677 | goto regular; | |
3678 | *scan_p = ' '; | |
3679 | while (scan_p[1] != '\n' || scan_p[0] == '\\') | |
3680 | { | |
3681 | if (!ISSPACE ((const unsigned char)*scan_p)) | |
3682 | *scan_p = ' '; | |
e16acfcd NS |
3683 | ++scan_p; |
3684 | gcc_assert (scan_p < new_clean_text_limit); | |
23459e15 KH |
3685 | } |
3686 | *scan_p++ = ' '; | |
3687 | break; | |
3688 | ||
3689 | case '\'': /* Handle character literals. */ | |
3690 | non_whitespace_since_newline = 1; | |
3691 | while (scan_p[1] != '\'' || scan_p[0] == '\\') | |
3692 | { | |
3693 | if (scan_p[0] == '\\' | |
3694 | && !ISSPACE ((const unsigned char) scan_p[1])) | |
3695 | scan_p[1] = ' '; | |
3696 | if (!ISSPACE ((const unsigned char)*scan_p)) | |
3697 | *scan_p = ' '; | |
e16acfcd NS |
3698 | ++scan_p; |
3699 | gcc_assert (scan_p < new_clean_text_limit); | |
23459e15 KH |
3700 | } |
3701 | *scan_p++ = ' '; | |
3702 | break; | |
3703 | ||
3704 | case '"': /* Handle string literals. */ | |
3705 | non_whitespace_since_newline = 1; | |
3706 | while (scan_p[1] != '"' || scan_p[0] == '\\') | |
3707 | { | |
3708 | if (scan_p[0] == '\\' | |
3709 | && !ISSPACE ((const unsigned char) scan_p[1])) | |
3710 | scan_p[1] = ' '; | |
3711 | if (!ISSPACE ((const unsigned char)*scan_p)) | |
3712 | *scan_p = ' '; | |
e16acfcd NS |
3713 | ++scan_p; |
3714 | gcc_assert (scan_p < new_clean_text_limit); | |
23459e15 KH |
3715 | } |
3716 | if (!ISSPACE ((const unsigned char)*scan_p)) | |
3717 | *scan_p = ' '; | |
3718 | scan_p++; | |
3719 | break; | |
3720 | ||
3721 | case '\\': /* Handle line continuations. */ | |
3722 | if (scan_p[1] != '\n') | |
3723 | goto regular; | |
3724 | *scan_p = ' '; | |
3725 | break; | |
3726 | ||
3727 | case '\n': | |
3728 | non_whitespace_since_newline = 0; /* Reset. */ | |
3729 | break; | |
3730 | ||
3731 | case ' ': | |
3732 | case '\v': | |
3733 | case '\t': | |
3734 | case '\r': | |
3735 | case '\f': | |
3736 | case '\b': | |
3737 | break; /* Whitespace characters. */ | |
3738 | ||
3739 | default: | |
5f8037c4 | 3740 | regular: |
23459e15 KH |
3741 | non_whitespace_since_newline = 1; |
3742 | break; | |
3743 | } | |
5f8037c4 RS |
3744 | } |
3745 | } | |
3746 | ||
3747 | /* Given a pointer to the closing right parenthesis for a particular formals | |
3748 | list (in the clean text buffer) find the corresponding left parenthesis | |
3749 | and return a pointer to it. */ | |
3750 | ||
3751 | static const char * | |
439f7bc3 | 3752 | careful_find_l_paren (const char *p) |
5f8037c4 RS |
3753 | { |
3754 | const char *q; | |
3755 | int paren_depth; | |
3756 | ||
3757 | for (paren_depth = 1, q = p-1; paren_depth; check_source (--q >= clean_text_base, 0)) | |
3758 | { | |
3759 | switch (*q) | |
23459e15 KH |
3760 | { |
3761 | case ')': | |
3762 | paren_depth++; | |
3763 | break; | |
3764 | case '(': | |
3765 | paren_depth--; | |
3766 | break; | |
3767 | } | |
5f8037c4 RS |
3768 | } |
3769 | return ++q; | |
3770 | } | |
3771 | ||
3772 | /* Scan the clean text buffer for cases of function definitions that we | |
3773 | don't really know about because they were preprocessed out when the | |
3774 | aux info files were created. | |
3775 | ||
3776 | In this version of protoize/unprotoize we just give a warning for each | |
3777 | one found. A later version may be able to at least unprotoize such | |
3778 | missed items. | |
3779 | ||
3780 | Note that we may easily find all function definitions simply by | |
3781 | looking for places where there is a left paren which is (ignoring | |
3782 | whitespace) immediately followed by either a left-brace or by an | |
3783 | upper or lower case letter. Whenever we find this combination, we | |
3784 | have also found a function definition header. | |
3785 | ||
3786 | Finding function *declarations* using syntactic clues is much harder. | |
3787 | I will probably try to do this in a later version though. */ | |
3788 | ||
3789 | static void | |
439f7bc3 | 3790 | scan_for_missed_items (const file_info *file_p) |
5f8037c4 RS |
3791 | { |
3792 | static const char *scan_p; | |
3793 | const char *limit = clean_text_limit - 3; | |
3794 | static const char *backup_limit; | |
3795 | ||
3796 | backup_limit = clean_text_base - 1; | |
3797 | ||
3798 | for (scan_p = clean_text_base; scan_p < limit; scan_p++) | |
3799 | { | |
3800 | if (*scan_p == ')') | |
23459e15 KH |
3801 | { |
3802 | static const char *last_r_paren; | |
3803 | const char *ahead_p; | |
5f8037c4 | 3804 | |
23459e15 | 3805 | last_r_paren = scan_p; |
5f8037c4 | 3806 | |
23459e15 KH |
3807 | for (ahead_p = scan_p + 1; ISSPACE ((const unsigned char)*ahead_p); ) |
3808 | check_source (++ahead_p < limit, limit); | |
5f8037c4 | 3809 | |
23459e15 | 3810 | scan_p = ahead_p - 1; |
5f8037c4 | 3811 | |
23459e15 KH |
3812 | if (ISALPHA ((const unsigned char)*ahead_p) || *ahead_p == '{') |
3813 | { | |
3814 | const char *last_l_paren; | |
3815 | const int lineno = identify_lineno (ahead_p); | |
5f8037c4 | 3816 | |
23459e15 KH |
3817 | if (setjmp (source_confusion_recovery)) |
3818 | continue; | |
5f8037c4 | 3819 | |
23459e15 KH |
3820 | /* We know we have a function definition header. Now skip |
3821 | leftwards over all of its associated formals lists. */ | |
5f8037c4 | 3822 | |
23459e15 KH |
3823 | do |
3824 | { | |
3825 | last_l_paren = careful_find_l_paren (last_r_paren); | |
3826 | for (last_r_paren = last_l_paren-1; | |
e51712db | 3827 | ISSPACE ((const unsigned char)*last_r_paren); ) |
23459e15 KH |
3828 | check_source (--last_r_paren >= backup_limit, backup_limit); |
3829 | } | |
3830 | while (*last_r_paren == ')'); | |
3831 | ||
3832 | if (is_id_char (*last_r_paren)) | |
3833 | { | |
3834 | const char *id_limit = last_r_paren + 1; | |
3835 | const char *id_start; | |
3836 | size_t id_length; | |
3837 | const def_dec_info *dd_p; | |
3838 | ||
3839 | for (id_start = id_limit-1; is_id_char (*id_start); ) | |
3840 | check_source (--id_start >= backup_limit, backup_limit); | |
3841 | id_start++; | |
3842 | backup_limit = id_start; | |
3843 | if ((id_length = (size_t) (id_limit - id_start)) == 0) | |
3844 | goto not_missed; | |
5f8037c4 RS |
3845 | |
3846 | { | |
703ad42b | 3847 | char *func_name = alloca (id_length + 1); |
5f8037c4 | 3848 | static const char * const stmt_keywords[] |
c9d28865 | 3849 | = { "if", "else", "do", "while", "for", "switch", "case", "return", 0 }; |
5f8037c4 RS |
3850 | const char * const *stmt_keyword; |
3851 | ||
3852 | strncpy (func_name, id_start, id_length); | |
3853 | func_name[id_length] = '\0'; | |
3854 | ||
3855 | /* We must check here to see if we are actually looking at | |
3856 | a statement rather than an actual function call. */ | |
3857 | ||
3858 | for (stmt_keyword = stmt_keywords; *stmt_keyword; stmt_keyword++) | |
3859 | if (!strcmp (func_name, *stmt_keyword)) | |
3860 | goto not_missed; | |
3861 | ||
3862 | #if 0 | |
9e637a26 | 3863 | notice ("%s: found definition of '%s' at %s(%d)\n", |
ab87f8c8 JL |
3864 | pname, |
3865 | func_name, | |
3866 | shortpath (NULL, file_p->hash_entry->symbol), | |
3867 | identify_lineno (id_start)); | |
5f8037c4 RS |
3868 | #endif /* 0 */ |
3869 | /* We really should check for a match of the function name | |
3870 | here also, but why bother. */ | |
3871 | ||
3872 | for (dd_p = file_p->defs_decs; dd_p; dd_p = dd_p->next_in_file) | |
3873 | if (dd_p->is_func_def && dd_p->line == lineno) | |
3874 | goto not_missed; | |
3875 | ||
3876 | /* If we make it here, then we did not know about this | |
3877 | function definition. */ | |
3878 | ||
9e637a26 | 3879 | notice ("%s: %d: warning: '%s' excluded by preprocessing\n", |
ab87f8c8 JL |
3880 | shortpath (NULL, file_p->hash_entry->symbol), |
3881 | identify_lineno (id_start), func_name); | |
3882 | notice ("%s: function definition not converted\n", | |
3883 | pname); | |
5f8037c4 RS |
3884 | } |
3885 | not_missed: ; | |
23459e15 KH |
3886 | } |
3887 | } | |
3888 | } | |
5f8037c4 RS |
3889 | } |
3890 | } | |
3891 | ||
3892 | /* Do all editing operations for a single source file (either a "base" file | |
3893 | or an "include" file). To do this we read the file into memory, keep a | |
3894 | virgin copy there, make another cleaned in-core copy of the original file | |
d17e26f7 | 3895 | (i.e. one in which all of the comments and preprocessing directives have |
5f8037c4 RS |
3896 | been replaced with whitespace), then use these two in-core copies of the |
3897 | file to make a new edited in-core copy of the file. Finally, rename the | |
3898 | original file (as a way of saving it), and then write the edited version | |
3899 | of the file from core to a disk file of the same name as the original. | |
3900 | ||
3901 | Note that the trick of making a copy of the original sans comments & | |
d17e26f7 | 3902 | preprocessing directives make the editing a whole lot easier. */ |
23459e15 | 3903 | |
5f8037c4 | 3904 | static void |
439f7bc3 | 3905 | edit_file (const hash_table_entry *hp) |
5f8037c4 RS |
3906 | { |
3907 | struct stat stat_buf; | |
3908 | const file_info *file_p = hp->fip; | |
3909 | char *new_orig_text_base; | |
3910 | char *new_orig_text_limit; | |
3911 | char *new_clean_text_base; | |
3912 | char *new_clean_text_limit; | |
3913 | size_t orig_size; | |
3914 | size_t repl_size; | |
3915 | int first_definition_in_file; | |
3916 | ||
3917 | /* If we are not supposed to be converting this file, or if there is | |
3918 | nothing in there which needs converting, just skip this file. */ | |
3919 | ||
3920 | if (!needs_to_be_converted (file_p)) | |
3921 | return; | |
3922 | ||
a2b22788 | 3923 | convert_filename = file_p->hash_entry->symbol; |
5f8037c4 RS |
3924 | |
3925 | /* Convert a file if it is in a directory where we want conversion | |
3926 | and the file is not excluded. */ | |
3927 | ||
a2b22788 RS |
3928 | if (!directory_specified_p (convert_filename) |
3929 | || file_excluded_p (convert_filename)) | |
5f8037c4 RS |
3930 | { |
3931 | if (!quiet_flag | |
3932 | #ifdef UNPROTOIZE | |
23459e15 KH |
3933 | /* Don't even mention "system" include files unless we are |
3934 | protoizing. If we are protoizing, we mention these as a | |
3935 | gentle way of prodding the user to convert his "system" | |
3936 | include files to prototype format. */ | |
3937 | && !in_system_include_dir (convert_filename) | |
a019653e | 3938 | #endif /* defined (UNPROTOIZE) */ |
23459e15 | 3939 | ) |
9e637a26 | 3940 | notice ("%s: '%s' not converted\n", |
ab87f8c8 | 3941 | pname, shortpath (NULL, convert_filename)); |
5f8037c4 RS |
3942 | return; |
3943 | } | |
3944 | ||
3945 | /* Let the user know what we are up to. */ | |
3946 | ||
3947 | if (nochange_flag) | |
9e637a26 | 3948 | notice ("%s: would convert file '%s'\n", |
ab87f8c8 | 3949 | pname, shortpath (NULL, convert_filename)); |
5f8037c4 | 3950 | else |
9e637a26 | 3951 | notice ("%s: converting file '%s'\n", |
ab87f8c8 | 3952 | pname, shortpath (NULL, convert_filename)); |
34e56753 | 3953 | fflush (stderr); |
5f8037c4 RS |
3954 | |
3955 | /* Find out the size (in bytes) of the original file. */ | |
3956 | ||
a2b22788 | 3957 | /* The cast avoids an erroneous warning on AIX. */ |
ffb9f2f1 | 3958 | if (stat (convert_filename, &stat_buf) == -1) |
5f8037c4 | 3959 | { |
e5e809f4 | 3960 | int errno_val = errno; |
9e637a26 | 3961 | notice ("%s: can't get status for file '%s': %s\n", |
ab87f8c8 JL |
3962 | pname, shortpath (NULL, convert_filename), |
3963 | xstrerror (errno_val)); | |
5f8037c4 RS |
3964 | return; |
3965 | } | |
3966 | orig_size = stat_buf.st_size; | |
3967 | ||
3968 | /* Allocate a buffer to hold the original text. */ | |
3969 | ||
703ad42b | 3970 | orig_text_base = new_orig_text_base = xmalloc (orig_size + 2); |
5f8037c4 RS |
3971 | orig_text_limit = new_orig_text_limit = new_orig_text_base + orig_size; |
3972 | ||
3973 | /* Allocate a buffer to hold the cleaned-up version of the original text. */ | |
3974 | ||
703ad42b | 3975 | clean_text_base = new_clean_text_base = xmalloc (orig_size + 2); |
5f8037c4 RS |
3976 | clean_text_limit = new_clean_text_limit = new_clean_text_base + orig_size; |
3977 | clean_read_ptr = clean_text_base - 1; | |
3978 | ||
3979 | /* Allocate a buffer that will hopefully be large enough to hold the entire | |
3980 | converted output text. As an initial guess for the maximum size of the | |
3981 | output buffer, use 125% of the size of the original + some extra. This | |
3982 | buffer can be expanded later as needed. */ | |
3983 | ||
3984 | repl_size = orig_size + (orig_size >> 2) + 4096; | |
703ad42b | 3985 | repl_text_base = xmalloc (repl_size + 2); |
5f8037c4 RS |
3986 | repl_text_limit = repl_text_base + repl_size - 1; |
3987 | repl_write_ptr = repl_text_base - 1; | |
3988 | ||
3989 | { | |
3990 | int input_file; | |
ee77eda5 | 3991 | int fd_flags; |
5f8037c4 RS |
3992 | |
3993 | /* Open the file to be converted in READ ONLY mode. */ | |
3994 | ||
ee77eda5 MK |
3995 | fd_flags = O_RDONLY; |
3996 | #ifdef O_BINARY | |
dc297297 | 3997 | /* Use binary mode to avoid having to deal with different EOL characters. */ |
ee77eda5 MK |
3998 | fd_flags |= O_BINARY; |
3999 | #endif | |
4000 | if ((input_file = open (convert_filename, fd_flags, 0444)) == -1) | |
5f8037c4 | 4001 | { |
e5e809f4 | 4002 | int errno_val = errno; |
9e637a26 | 4003 | notice ("%s: can't open file '%s' for reading: %s\n", |
ab87f8c8 JL |
4004 | pname, shortpath (NULL, convert_filename), |
4005 | xstrerror (errno_val)); | |
23459e15 | 4006 | return; |
5f8037c4 RS |
4007 | } |
4008 | ||
4009 | /* Read the entire original source text file into the original text buffer | |
4010 | in one swell fwoop. Then figure out where the end of the text is and | |
4011 | make sure that it ends with a newline followed by a null. */ | |
4012 | ||
e51712db KG |
4013 | if (safe_read (input_file, new_orig_text_base, orig_size) != |
4014 | (int) orig_size) | |
5f8037c4 | 4015 | { |
e5e809f4 | 4016 | int errno_val = errno; |
23459e15 | 4017 | close (input_file); |
9e637a26 | 4018 | notice ("\n%s: error reading input file '%s': %s\n", |
ab87f8c8 JL |
4019 | pname, shortpath (NULL, convert_filename), |
4020 | xstrerror (errno_val)); | |
23459e15 | 4021 | return; |
5f8037c4 RS |
4022 | } |
4023 | ||
4024 | close (input_file); | |
4025 | } | |
4026 | ||
4027 | if (orig_size == 0 || orig_text_limit[-1] != '\n') | |
4028 | { | |
4029 | *new_orig_text_limit++ = '\n'; | |
4030 | orig_text_limit++; | |
4031 | } | |
4032 | ||
4033 | /* Create the cleaned up copy of the original text. */ | |
4034 | ||
4035 | memcpy (new_clean_text_base, orig_text_base, | |
4036 | (size_t) (orig_text_limit - orig_text_base)); | |
4037 | do_cleaning (new_clean_text_base, new_clean_text_limit); | |
4038 | ||
4039 | #if 0 | |
4040 | { | |
4041 | int clean_file; | |
4042 | size_t clean_size = orig_text_limit - orig_text_base; | |
703ad42b | 4043 | char *const clean_filename = alloca (strlen (convert_filename) + 6 + 1); |
5f8037c4 RS |
4044 | |
4045 | /* Open (and create) the clean file. */ | |
23459e15 | 4046 | |
a2b22788 RS |
4047 | strcpy (clean_filename, convert_filename); |
4048 | strcat (clean_filename, ".clean"); | |
4049 | if ((clean_file = creat (clean_filename, 0666)) == -1) | |
5f8037c4 | 4050 | { |
e5e809f4 | 4051 | int errno_val = errno; |
9e637a26 | 4052 | notice ("%s: can't create/open clean file '%s': %s\n", |
ab87f8c8 JL |
4053 | pname, shortpath (NULL, clean_filename), |
4054 | xstrerror (errno_val)); | |
23459e15 | 4055 | return; |
5f8037c4 | 4056 | } |
23459e15 | 4057 | |
5f8037c4 | 4058 | /* Write the clean file. */ |
23459e15 | 4059 | |
fa0cd3ff | 4060 | safe_write (clean_file, new_clean_text_base, clean_size, clean_filename); |
23459e15 | 4061 | |
5f8037c4 RS |
4062 | close (clean_file); |
4063 | } | |
4064 | #endif /* 0 */ | |
4065 | ||
4066 | /* Do a simplified scan of the input looking for things that were not | |
4067 | mentioned in the aux info files because of the fact that they were | |
4068 | in a region of the source which was preprocessed-out (via #if or | |
4069 | via #ifdef). */ | |
4070 | ||
4071 | scan_for_missed_items (file_p); | |
4072 | ||
4073 | /* Setup to do line-oriented forward seeking in the clean text buffer. */ | |
4074 | ||
4075 | last_known_line_number = 1; | |
4076 | last_known_line_start = clean_text_base; | |
4077 | ||
4078 | /* Now get down to business and make all of the necessary edits. */ | |
4079 | ||
4080 | { | |
4081 | const def_dec_info *def_dec_p; | |
4082 | ||
4083 | first_definition_in_file = 1; | |
4084 | def_dec_p = file_p->defs_decs; | |
4085 | for (; def_dec_p; def_dec_p = def_dec_p->next_in_file) | |
4086 | { | |
23459e15 KH |
4087 | const char *clean_text_p = seek_to_line (def_dec_p->line); |
4088 | ||
4089 | /* clean_text_p now points to the first character of the line which | |
4090 | contains the `terminator' for the declaration or definition that | |
4091 | we are about to process. */ | |
4092 | ||
5f8037c4 | 4093 | #ifndef UNPROTOIZE |
5f8037c4 | 4094 | |
23459e15 KH |
4095 | if (global_flag && def_dec_p->is_func_def && first_definition_in_file) |
4096 | { | |
4097 | add_global_decls (def_dec_p->file, clean_text_p); | |
4098 | first_definition_in_file = 0; | |
4099 | } | |
5f8037c4 | 4100 | |
23459e15 KH |
4101 | /* Don't edit this item if it is already in prototype format or if it |
4102 | is a function declaration and we have found no corresponding | |
4103 | definition. */ | |
4104 | ||
4105 | if (def_dec_p->prototyped | |
4106 | || (!def_dec_p->is_func_def && !def_dec_p->definition)) | |
4107 | continue; | |
5f8037c4 | 4108 | |
a019653e | 4109 | #endif /* !defined (UNPROTOIZE) */ |
5f8037c4 | 4110 | |
23459e15 KH |
4111 | if (def_dec_p->is_func_def) |
4112 | edit_fn_definition (def_dec_p, clean_text_p); | |
4113 | else | |
5f8037c4 | 4114 | #ifndef UNPROTOIZE |
23459e15 KH |
4115 | if (def_dec_p->is_implicit) |
4116 | add_local_decl (def_dec_p, clean_text_p); | |
4117 | else | |
a019653e | 4118 | #endif /* !defined (UNPROTOIZE) */ |
23459e15 | 4119 | edit_fn_declaration (def_dec_p, clean_text_p); |
5f8037c4 RS |
4120 | } |
4121 | } | |
4122 | ||
4123 | /* Finalize things. Output the last trailing part of the original text. */ | |
4124 | ||
4125 | output_up_to (clean_text_limit - 1); | |
4126 | ||
4127 | /* If this is just a test run, stop now and just deallocate the buffers. */ | |
4128 | ||
4129 | if (nochange_flag) | |
4130 | { | |
4131 | free (new_orig_text_base); | |
4132 | free (new_clean_text_base); | |
4133 | free (repl_text_base); | |
4134 | return; | |
4135 | } | |
4136 | ||
4137 | /* Change the name of the original input file. This is just a quick way of | |
4138 | saving the original file. */ | |
4139 | ||
4140 | if (!nosave_flag) | |
4141 | { | |
db3cf6fb | 4142 | char *new_filename |
703ad42b | 4143 | = xmalloc (strlen (convert_filename) + strlen (save_suffix) + 2); |
23459e15 | 4144 | |
a2b22788 | 4145 | strcpy (new_filename, convert_filename); |
a7db8bbb MK |
4146 | #ifdef __MSDOS__ |
4147 | /* MSDOS filenames are restricted to 8.3 format, so we save `foo.c' | |
23459e15 | 4148 | as `foo.<save_suffix>'. */ |
a7db8bbb MK |
4149 | new_filename[(strlen (convert_filename) - 1] = '\0'; |
4150 | #endif | |
a2b22788 | 4151 | strcat (new_filename, save_suffix); |
ee77eda5 MK |
4152 | |
4153 | /* Don't overwrite existing file. */ | |
4154 | if (access (new_filename, F_OK) == 0) | |
4155 | { | |
4156 | if (!quiet_flag) | |
9e637a26 | 4157 | notice ("%s: warning: file '%s' already saved in '%s'\n", |
ee77eda5 MK |
4158 | pname, |
4159 | shortpath (NULL, convert_filename), | |
4160 | shortpath (NULL, new_filename)); | |
4161 | } | |
4162 | else if (rename (convert_filename, new_filename) == -1) | |
23459e15 | 4163 | { |
e5e809f4 | 4164 | int errno_val = errno; |
9e637a26 | 4165 | notice ("%s: can't link file '%s' to '%s': %s\n", |
ee77eda5 MK |
4166 | pname, |
4167 | shortpath (NULL, convert_filename), | |
4168 | shortpath (NULL, new_filename), | |
4169 | xstrerror (errno_val)); | |
4170 | return; | |
23459e15 | 4171 | } |
5f8037c4 RS |
4172 | } |
4173 | ||
ffb9f2f1 | 4174 | if (unlink (convert_filename) == -1) |
5f8037c4 | 4175 | { |
e5e809f4 | 4176 | int errno_val = errno; |
ee77eda5 MK |
4177 | /* The file may have already been renamed. */ |
4178 | if (errno_val != ENOENT) | |
23459e15 | 4179 | { |
9e637a26 | 4180 | notice ("%s: can't delete file '%s': %s\n", |
ee77eda5 MK |
4181 | pname, shortpath (NULL, convert_filename), |
4182 | xstrerror (errno_val)); | |
4183 | return; | |
4184 | } | |
5f8037c4 RS |
4185 | } |
4186 | ||
4187 | { | |
4188 | int output_file; | |
4189 | ||
4190 | /* Open (and create) the output file. */ | |
23459e15 | 4191 | |
a2b22788 | 4192 | if ((output_file = creat (convert_filename, 0666)) == -1) |
5f8037c4 | 4193 | { |
e5e809f4 | 4194 | int errno_val = errno; |
9e637a26 | 4195 | notice ("%s: can't create/open output file '%s': %s\n", |
ab87f8c8 JL |
4196 | pname, shortpath (NULL, convert_filename), |
4197 | xstrerror (errno_val)); | |
23459e15 | 4198 | return; |
5f8037c4 | 4199 | } |
ee77eda5 MK |
4200 | #ifdef O_BINARY |
4201 | /* Use binary mode to avoid changing the existing EOL character. */ | |
4202 | setmode (output_file, O_BINARY); | |
4203 | #endif | |
23459e15 | 4204 | |
5f8037c4 | 4205 | /* Write the output file. */ |
23459e15 | 4206 | |
5f8037c4 RS |
4207 | { |
4208 | unsigned int out_size = (repl_write_ptr + 1) - repl_text_base; | |
23459e15 | 4209 | |
fa0cd3ff | 4210 | safe_write (output_file, repl_text_base, out_size, convert_filename); |
5f8037c4 | 4211 | } |
23459e15 | 4212 | |
5f8037c4 RS |
4213 | close (output_file); |
4214 | } | |
4215 | ||
4216 | /* Deallocate the conversion buffers. */ | |
4217 | ||
4218 | free (new_orig_text_base); | |
4219 | free (new_clean_text_base); | |
4220 | free (repl_text_base); | |
4221 | ||
4222 | /* Change the mode of the output file to match the original file. */ | |
4223 | ||
a2b22788 | 4224 | /* The cast avoids an erroneous warning on AIX. */ |
ffb9f2f1 | 4225 | if (chmod (convert_filename, stat_buf.st_mode) == -1) |
e5e809f4 JL |
4226 | { |
4227 | int errno_val = errno; | |
9e637a26 | 4228 | notice ("%s: can't change mode of file '%s': %s\n", |
ab87f8c8 JL |
4229 | pname, shortpath (NULL, convert_filename), |
4230 | xstrerror (errno_val)); | |
e5e809f4 | 4231 | } |
5f8037c4 RS |
4232 | |
4233 | /* Note: We would try to change the owner and group of the output file | |
4234 | to match those of the input file here, except that may not be a good | |
4235 | thing to do because it might be misleading. Also, it might not even | |
4236 | be possible to do that (on BSD systems with quotas for instance). */ | |
4237 | } | |
4238 | ||
4239 | /* Do all of the individual steps needed to do the protoization (or | |
4240 | unprotoization) of the files referenced in the aux_info files given | |
4241 | in the command line. */ | |
4242 | ||
4243 | static void | |
439f7bc3 | 4244 | do_processing (void) |
5f8037c4 RS |
4245 | { |
4246 | const char * const *base_pp; | |
a2b22788 RS |
4247 | const char * const * const end_pps |
4248 | = &base_source_filenames[n_base_source_files]; | |
5f8037c4 RS |
4249 | |
4250 | #ifndef UNPROTOIZE | |
4251 | int syscalls_len; | |
a019653e | 4252 | #endif /* !defined (UNPROTOIZE) */ |
5f8037c4 RS |
4253 | |
4254 | /* One-by-one, check (and create if necessary), open, and read all of the | |
4255 | stuff in each aux_info file. After reading each aux_info file, the | |
4256 | aux_info_file just read will be automatically deleted unless the | |
4257 | keep_flag is set. */ | |
4258 | ||
a2b22788 | 4259 | for (base_pp = base_source_filenames; base_pp < end_pps; base_pp++) |
5f8037c4 RS |
4260 | process_aux_info_file (*base_pp, keep_flag, 0); |
4261 | ||
4262 | #ifndef UNPROTOIZE | |
4263 | ||
4264 | /* Also open and read the special SYSCALLS.c aux_info file which gives us | |
4265 | the prototypes for all of the standard system-supplied functions. */ | |
4266 | ||
4267 | if (nondefault_syscalls_dir) | |
4268 | { | |
a2b22788 | 4269 | syscalls_absolute_filename |
703ad42b KG |
4270 | = xmalloc (strlen (nondefault_syscalls_dir) + 1 |
4271 | + sizeof (syscalls_filename)); | |
a2b22788 | 4272 | strcpy (syscalls_absolute_filename, nondefault_syscalls_dir); |
5f8037c4 RS |
4273 | } |
4274 | else | |
4275 | { | |
2f8dd115 | 4276 | GET_ENVIRONMENT (default_syscalls_dir, "GCC_EXEC_PREFIX"); |
d059a239 FF |
4277 | if (!default_syscalls_dir) |
4278 | { | |
4279 | default_syscalls_dir = standard_exec_prefix; | |
4280 | } | |
a2b22788 | 4281 | syscalls_absolute_filename |
703ad42b KG |
4282 | = xmalloc (strlen (default_syscalls_dir) + 0 |
4283 | + strlen (target_machine) + 1 | |
4284 | + strlen (target_version) + 1 | |
4285 | + sizeof (syscalls_filename)); | |
a2b22788 | 4286 | strcpy (syscalls_absolute_filename, default_syscalls_dir); |
d059a239 FF |
4287 | strcat (syscalls_absolute_filename, target_machine); |
4288 | strcat (syscalls_absolute_filename, "/"); | |
4289 | strcat (syscalls_absolute_filename, target_version); | |
4290 | strcat (syscalls_absolute_filename, "/"); | |
5f8037c4 RS |
4291 | } |
4292 | ||
34e56753 | 4293 | syscalls_len = strlen (syscalls_absolute_filename); |
ee77eda5 | 4294 | if (! IS_DIR_SEPARATOR (*(syscalls_absolute_filename + syscalls_len - 1))) |
5f8037c4 | 4295 | { |
ee77eda5 | 4296 | *(syscalls_absolute_filename + syscalls_len++) = DIR_SEPARATOR; |
a2b22788 | 4297 | *(syscalls_absolute_filename + syscalls_len) = '\0'; |
5f8037c4 | 4298 | } |
a2b22788 | 4299 | strcat (syscalls_absolute_filename, syscalls_filename); |
23459e15 | 4300 | |
5f8037c4 RS |
4301 | /* Call process_aux_info_file in such a way that it does not try to |
4302 | delete the SYSCALLS aux_info file. */ | |
4303 | ||
a2b22788 | 4304 | process_aux_info_file (syscalls_absolute_filename, 1, 1); |
5f8037c4 | 4305 | |
a019653e | 4306 | #endif /* !defined (UNPROTOIZE) */ |
5f8037c4 RS |
4307 | |
4308 | /* When we first read in all of the information from the aux_info files | |
6dc42e49 | 4309 | we saved in it descending line number order, because that was likely to |
5f8037c4 RS |
4310 | be faster. Now however, we want the chains of def & dec records to |
4311 | appear in ascending line number order as we get further away from the | |
4312 | file_info record that they hang from. The following line causes all of | |
4313 | these lists to be rearranged into ascending line number order. */ | |
4314 | ||
a2b22788 | 4315 | visit_each_hash_node (filename_primary, reverse_def_dec_list); |
5f8037c4 RS |
4316 | |
4317 | #ifndef UNPROTOIZE | |
4318 | ||
4319 | /* Now do the "real" work. The following line causes each declaration record | |
4320 | to be "visited". For each of these nodes, an attempt is made to match | |
4321 | up the function declaration with a corresponding function definition, | |
4322 | which should have a full prototype-format formals list with it. Once | |
4323 | these match-ups are made, the conversion of the function declarations | |
4324 | to prototype format can be made. */ | |
4325 | ||
4326 | visit_each_hash_node (function_name_primary, connect_defs_and_decs); | |
4327 | ||
a019653e | 4328 | #endif /* !defined (UNPROTOIZE) */ |
5f8037c4 RS |
4329 | |
4330 | /* Now convert each file that can be converted (and needs to be). */ | |
4331 | ||
a2b22788 | 4332 | visit_each_hash_node (filename_primary, edit_file); |
5f8037c4 RS |
4333 | |
4334 | #ifndef UNPROTOIZE | |
4335 | ||
4336 | /* If we are working in cplusplus mode, try to rename all .c files to .C | |
4337 | files. Don't panic if some of the renames don't work. */ | |
4338 | ||
4339 | if (cplusplus_flag && !nochange_flag) | |
a2b22788 | 4340 | visit_each_hash_node (filename_primary, rename_c_file); |
5f8037c4 | 4341 | |
a019653e | 4342 | #endif /* !defined (UNPROTOIZE) */ |
5f8037c4 RS |
4343 | } |
4344 | \f | |
c083a819 | 4345 | static const struct option longopts[] = |
5f8037c4 RS |
4346 | { |
4347 | {"version", 0, 0, 'V'}, | |
a019653e | 4348 | {"file_name", 0, 0, 'p'}, |
5f8037c4 RS |
4349 | {"quiet", 0, 0, 'q'}, |
4350 | {"silent", 0, 0, 'q'}, | |
4351 | {"force", 0, 0, 'f'}, | |
4352 | {"keep", 0, 0, 'k'}, | |
4353 | {"nosave", 0, 0, 'N'}, | |
4354 | {"nochange", 0, 0, 'n'}, | |
4355 | {"compiler-options", 1, 0, 'c'}, | |
4356 | {"exclude", 1, 0, 'x'}, | |
4357 | {"directory", 1, 0, 'd'}, | |
4358 | #ifdef UNPROTOIZE | |
4359 | {"indent", 1, 0, 'i'}, | |
4360 | #else | |
4361 | {"local", 0, 0, 'l'}, | |
4362 | {"global", 0, 0, 'g'}, | |
4363 | {"c++", 0, 0, 'C'}, | |
4364 | {"syscalls-dir", 1, 0, 'B'}, | |
4365 | #endif | |
4366 | {0, 0, 0, 0} | |
4367 | }; | |
4368 | ||
439f7bc3 | 4369 | extern int main (int, char **const); |
ffb9f2f1 | 4370 | |
5f8037c4 | 4371 | int |
439f7bc3 | 4372 | main (int argc, char **const argv) |
5f8037c4 RS |
4373 | { |
4374 | int longind; | |
4375 | int c; | |
f5188608 | 4376 | const char *params = ""; |
5f8037c4 | 4377 | |
ee77eda5 MK |
4378 | pname = strrchr (argv[0], DIR_SEPARATOR); |
4379 | #ifdef DIR_SEPARATOR_2 | |
4380 | { | |
4381 | char *slash; | |
4382 | ||
4383 | slash = strrchr (pname ? pname : argv[0], DIR_SEPARATOR_2); | |
4384 | if (slash) | |
4385 | pname = slash; | |
4386 | } | |
4387 | #endif | |
5f8037c4 RS |
4388 | pname = pname ? pname+1 : argv[0]; |
4389 | ||
798bdf70 BK |
4390 | #ifdef SIGCHLD |
4391 | /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will | |
4392 | receive the signal. A different setting is inheritable */ | |
4393 | signal (SIGCHLD, SIG_DFL); | |
4394 | #endif | |
4395 | ||
98a3dad4 | 4396 | /* Unlock the stdio streams. */ |
2653bb0c | 4397 | unlock_std_streams (); |
98a3dad4 | 4398 | |
191bf464 | 4399 | gcc_init_libintl (); |
ab87f8c8 | 4400 | |
2e494f70 RS |
4401 | cwd_buffer = getpwd (); |
4402 | if (!cwd_buffer) | |
5f8037c4 | 4403 | { |
ab87f8c8 JL |
4404 | notice ("%s: cannot get working directory: %s\n", |
4405 | pname, xstrerror(errno)); | |
ffb9f2f1 | 4406 | return (FATAL_EXIT_CODE); |
5f8037c4 RS |
4407 | } |
4408 | ||
4409 | /* By default, convert the files in the current directory. */ | |
4410 | directory_list = string_list_cons (cwd_buffer, NULL); | |
4411 | ||
4412 | while ((c = getopt_long (argc, argv, | |
4413 | #ifdef UNPROTOIZE | |
ea8fd45e | 4414 | "c:d:i:knNp:qvVx:", |
5f8037c4 | 4415 | #else |
ea8fd45e | 4416 | "B:c:Cd:gklnNp:qvVx:", |
5f8037c4 RS |
4417 | #endif |
4418 | longopts, &longind)) != EOF) | |
4419 | { | |
0f41302f | 4420 | if (c == 0) /* Long option. */ |
5f8037c4 RS |
4421 | c = longopts[longind].val; |
4422 | switch (c) | |
4423 | { | |
ef91d7e2 | 4424 | case 'p': |
a019653e | 4425 | compiler_file_name = optarg; |
ef91d7e2 | 4426 | break; |
5f8037c4 RS |
4427 | case 'd': |
4428 | directory_list | |
4429 | = string_list_cons (abspath (NULL, optarg), directory_list); | |
4430 | break; | |
4431 | case 'x': | |
4432 | exclude_list = string_list_cons (optarg, exclude_list); | |
4433 | break; | |
23459e15 | 4434 | |
ea8fd45e | 4435 | case 'v': |
5f8037c4 RS |
4436 | case 'V': |
4437 | version_flag = 1; | |
4438 | break; | |
4439 | case 'q': | |
4440 | quiet_flag = 1; | |
4441 | break; | |
4442 | #if 0 | |
4443 | case 'f': | |
4444 | force_flag = 1; | |
4445 | break; | |
4446 | #endif | |
4447 | case 'n': | |
4448 | nochange_flag = 1; | |
4449 | keep_flag = 1; | |
4450 | break; | |
4451 | case 'N': | |
4452 | nosave_flag = 1; | |
4453 | break; | |
4454 | case 'k': | |
4455 | keep_flag = 1; | |
4456 | break; | |
4457 | case 'c': | |
a609bfc6 | 4458 | params = optarg; |
5f8037c4 RS |
4459 | break; |
4460 | #ifdef UNPROTOIZE | |
4461 | case 'i': | |
4462 | indent_string = optarg; | |
4463 | break; | |
a019653e | 4464 | #else /* !defined (UNPROTOIZE) */ |
5f8037c4 RS |
4465 | case 'l': |
4466 | local_flag = 1; | |
4467 | break; | |
4468 | case 'g': | |
4469 | global_flag = 1; | |
4470 | break; | |
4471 | case 'C': | |
4472 | cplusplus_flag = 1; | |
4473 | break; | |
4474 | case 'B': | |
4475 | nondefault_syscalls_dir = optarg; | |
4476 | break; | |
a019653e | 4477 | #endif /* !defined (UNPROTOIZE) */ |
5f8037c4 RS |
4478 | default: |
4479 | usage (); | |
4480 | } | |
4481 | } | |
23459e15 | 4482 | |
a609bfc6 RS |
4483 | /* Set up compile_params based on -p and -c options. */ |
4484 | munge_compile_params (params); | |
4485 | ||
a2b22788 | 4486 | n_base_source_files = argc - optind; |
5f8037c4 | 4487 | |
a2b22788 | 4488 | /* Now actually make a list of the base source filenames. */ |
5f8037c4 | 4489 | |
db3cf6fb | 4490 | base_source_filenames |
703ad42b | 4491 | = xmalloc ((n_base_source_files + 1) * sizeof (char *)); |
a2b22788 | 4492 | n_base_source_files = 0; |
5f8037c4 RS |
4493 | for (; optind < argc; optind++) |
4494 | { | |
4495 | const char *path = abspath (NULL, argv[optind]); | |
4496 | int len = strlen (path); | |
4497 | ||
4498 | if (path[len-1] == 'c' && path[len-2] == '.') | |
a2b22788 | 4499 | base_source_filenames[n_base_source_files++] = path; |
5f8037c4 RS |
4500 | else |
4501 | { | |
ab87f8c8 JL |
4502 | notice ("%s: input file names must have .c suffixes: %s\n", |
4503 | pname, shortpath (NULL, path)); | |
5f8037c4 RS |
4504 | errors++; |
4505 | } | |
4506 | } | |
4507 | ||
4508 | #ifndef UNPROTOIZE | |
4509 | /* We are only interested in the very first identifier token in the | |
4510 | definition of `va_list', so if there is more junk after that first | |
4511 | identifier token, delete it from the `varargs_style_indicator'. */ | |
4512 | { | |
4513 | const char *cp; | |
4514 | ||
0df6c2c7 | 4515 | for (cp = varargs_style_indicator; ISIDNUM (*cp); cp++) |
5f8037c4 RS |
4516 | continue; |
4517 | if (*cp != 0) | |
4518 | varargs_style_indicator = savestring (varargs_style_indicator, | |
4519 | cp - varargs_style_indicator); | |
4520 | } | |
a019653e | 4521 | #endif /* !defined (UNPROTOIZE) */ |
5f8037c4 RS |
4522 | |
4523 | if (errors) | |
4524 | usage (); | |
4525 | else | |
4526 | { | |
4527 | if (version_flag) | |
23459e15 | 4528 | fprintf (stderr, "%s: %s\n", pname, version_string); |
5f8037c4 RS |
4529 | do_processing (); |
4530 | } | |
2e3f9f3d | 4531 | |
ffb9f2f1 | 4532 | return (errors ? FATAL_EXIT_CODE : SUCCESS_EXIT_CODE); |
5f8037c4 | 4533 | } |