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Commit | Line | Data |
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e2500fed | 1 | /* Process source files and output type information. |
85ec4feb | 2 | Copyright (C) 2002-2018 Free Software Foundation, Inc. |
e2500fed | 3 | |
9dcd6f09 | 4 | This file is part of GCC. |
e2500fed | 5 | |
9dcd6f09 NC |
6 | GCC is free software; you can redistribute it and/or modify it under |
7 | the terms of the GNU General Public License as published by the Free | |
8 | Software Foundation; either version 3, or (at your option) any later | |
9 | version. | |
e2500fed | 10 | |
9dcd6f09 NC |
11 | GCC is distributed in the hope that it will be useful, but WITHOUT ANY |
12 | WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
13 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
14 | for more details. | |
e2500fed | 15 | |
9dcd6f09 NC |
16 | You should have received a copy of the GNU General Public License |
17 | along with GCC; see the file COPYING3. If not see | |
18 | <http://www.gnu.org/licenses/>. */ | |
e2500fed | 19 | |
d6d34aa9 | 20 | #ifdef HOST_GENERATOR_FILE |
f142b5bc | 21 | #include "config.h" |
d6d34aa9 JJ |
22 | #define GENERATOR_FILE 1 |
23 | #else | |
24 | #include "bconfig.h" | |
f142b5bc | 25 | #endif |
e2500fed | 26 | #include "system.h" |
e1b793e7 | 27 | #include "errors.h" /* for fatal */ |
f8ed6dc5 | 28 | #include "getopt.h" |
f8ed6dc5 | 29 | #include "version.h" /* for version_string & pkgversion_string. */ |
81ae7e14 JS |
30 | #include "xregex.h" |
31 | #include "obstack.h" | |
f8ed6dc5 | 32 | #include "gengtype.h" |
ba78087b | 33 | #include "filenames.h" |
5ba6918e | 34 | |
065ae611 ZW |
35 | /* Data types, macros, etc. used only in this file. */ |
36 | ||
065ae611 ZW |
37 | |
38 | /* The list of output files. */ | |
f8ed6dc5 JS |
39 | outf_p output_files; |
40 | ||
41 | /* The output header file that is included into pretty much every | |
42 | source file. */ | |
43 | outf_p header_file; | |
44 | ||
45 | ||
46 | /* The name of the file containing the list of input files. */ | |
47 | static char *inputlist; | |
065ae611 | 48 | |
bd117bb6 | 49 | /* The plugin input files and their number; in that case only |
c802b1cf | 50 | a single file is produced. */ |
14c4815e | 51 | static input_file **plugin_files; |
9f78bf05 | 52 | static size_t nb_plugin_files; |
f8ed6dc5 JS |
53 | |
54 | /* The generated plugin output file and name. */ | |
9b39cba9 | 55 | static outf_p plugin_output; |
f8ed6dc5 | 56 | static char *plugin_output_filename; |
bd117bb6 | 57 | |
f8ed6dc5 JS |
58 | /* Our source directory and its length. */ |
59 | const char *srcdir; | |
60 | size_t srcdir_len; | |
065ae611 | 61 | |
f8ed6dc5 JS |
62 | /* Variables used for reading and writing the state. */ |
63 | const char *read_state_filename; | |
64 | const char *write_state_filename; | |
065ae611 | 65 | |
f8ed6dc5 JS |
66 | /* Variables to help debugging. */ |
67 | int do_dump; | |
68 | int do_debug; | |
065ae611 | 69 | |
1d32bbcd BS |
70 | /* Level for verbose messages. */ |
71 | int verbosity_level; | |
72 | ||
92724e1d BS |
73 | /* We have a type count and use it to set the state_number of newly |
74 | allocated types to some unique negative number. */ | |
75 | static int type_count; | |
76 | ||
1d32bbcd BS |
77 | /* The backup directory should be in the same file system as the |
78 | generated files, otherwise the rename(2) system call would fail. | |
79 | If NULL, no backup is made when overwriting a generated file. */ | |
80 | static const char* backup_dir; /* (-B) program option. */ | |
81 | ||
82 | ||
065ae611 | 83 | static outf_p create_file (const char *, const char *); |
8de8de02 | 84 | |
14c4815e BS |
85 | static const char *get_file_basename (const input_file *); |
86 | static const char *get_file_realbasename (const input_file *); | |
8de8de02 OH |
87 | |
88 | static int get_prefix_langdir_index (const char *); | |
14c4815e | 89 | static const char *get_file_langdir (const input_file *); |
0823efed DN |
90 | |
91 | static void dump_pair (int indent, pair_p p); | |
92 | static void dump_type (int indent, type_p p); | |
93 | static void dump_type_list (int indent, type_p p); | |
065ae611 | 94 | \f |
e1b793e7 | 95 | |
9f313342 | 96 | /* Nonzero iff an error has occurred. */ |
01d419ae | 97 | bool hit_error = false; |
9f313342 | 98 | |
3d7aafde AJ |
99 | static void gen_rtx_next (void); |
100 | static void write_rtx_next (void); | |
101 | static void open_base_files (void); | |
102 | static void close_output_files (void); | |
ef171ead | 103 | |
9f313342 GK |
104 | /* Report an error at POS, printing MSG. */ |
105 | ||
e2500fed | 106 | void |
0277fabf | 107 | error_at_line (const struct fileloc *pos, const char *msg, ...) |
e2500fed | 108 | { |
e34d07f2 | 109 | va_list ap; |
3d7aafde | 110 | |
14c4815e | 111 | gcc_assert (pos != NULL && pos->file != NULL); |
e34d07f2 | 112 | va_start (ap, msg); |
e2500fed | 113 | |
14c4815e | 114 | fprintf (stderr, "%s:%d: ", get_input_file_name (pos->file), pos->line); |
e2500fed GK |
115 | vfprintf (stderr, msg, ap); |
116 | fputc ('\n', stderr); | |
01d419ae | 117 | hit_error = true; |
e2500fed | 118 | |
e34d07f2 | 119 | va_end (ap); |
e2500fed | 120 | } |
11a67599 | 121 | \f |
32fe5271 DM |
122 | /* Locate the ultimate base class of struct S. */ |
123 | ||
124 | static const_type_p | |
125 | get_ultimate_base_class (const_type_p s) | |
126 | { | |
127 | while (s->u.s.base_class) | |
128 | s = s->u.s.base_class; | |
129 | return s; | |
130 | } | |
9aa54cc9 DM |
131 | |
132 | static type_p | |
133 | get_ultimate_base_class (type_p s) | |
134 | { | |
135 | while (s->u.s.base_class) | |
136 | s = s->u.s.base_class; | |
137 | return s; | |
138 | } | |
32fe5271 | 139 | \f |
11a67599 ZW |
140 | /* Input file handling. */ |
141 | ||
142 | /* Table of all input files. */ | |
14c4815e BS |
143 | const input_file **gt_files; |
144 | size_t num_gt_files; | |
11a67599 | 145 | |
14c4815e | 146 | /* A number of places use the name of this "gengtype.c" file for a |
f8ed6dc5 JS |
147 | location for things that we can't rely on the source to define. |
148 | Make sure we can still use pointer comparison on filenames. */ | |
14c4815e | 149 | input_file* this_file; |
f8ed6dc5 | 150 | /* The "system.h" file is likewise specially useful. */ |
14c4815e | 151 | input_file* system_h_file; |
01d419ae | 152 | |
11a67599 | 153 | /* Vector of per-language directories. */ |
14c4815e BS |
154 | const char **lang_dir_names; |
155 | size_t num_lang_dirs; | |
11a67599 ZW |
156 | |
157 | /* An array of output files suitable for definitions. There is one | |
158 | BASE_FILES entry for each language. */ | |
159 | static outf_p *base_files; | |
160 | ||
f8ed6dc5 | 161 | /* Utility debugging function, printing the various type counts within |
073a8998 | 162 | a list of types. Called through the DBGPRINT_COUNT_TYPE macro. */ |
f8ed6dc5 JS |
163 | void |
164 | dbgprint_count_type_at (const char *fil, int lin, const char *msg, type_p t) | |
165 | { | |
166 | int nb_types = 0, nb_scalar = 0, nb_string = 0; | |
167 | int nb_struct = 0, nb_union = 0, nb_array = 0, nb_pointer = 0; | |
63f5d5b8 | 168 | int nb_lang_struct = 0; |
9771b263 | 169 | int nb_user_struct = 0, nb_undefined = 0; |
f8ed6dc5 JS |
170 | type_p p = NULL; |
171 | for (p = t; p; p = p->next) | |
172 | { | |
173 | nb_types++; | |
174 | switch (p->kind) | |
175 | { | |
9771b263 DN |
176 | case TYPE_UNDEFINED: |
177 | nb_undefined++; | |
f0bc3323 | 178 | break; |
f8ed6dc5 JS |
179 | case TYPE_SCALAR: |
180 | nb_scalar++; | |
181 | break; | |
182 | case TYPE_STRING: | |
183 | nb_string++; | |
184 | break; | |
185 | case TYPE_STRUCT: | |
186 | nb_struct++; | |
187 | break; | |
0823efed DN |
188 | case TYPE_USER_STRUCT: |
189 | nb_user_struct++; | |
190 | break; | |
f8ed6dc5 JS |
191 | case TYPE_UNION: |
192 | nb_union++; | |
193 | break; | |
194 | case TYPE_POINTER: | |
195 | nb_pointer++; | |
196 | break; | |
197 | case TYPE_ARRAY: | |
198 | nb_array++; | |
199 | break; | |
200 | case TYPE_LANG_STRUCT: | |
201 | nb_lang_struct++; | |
202 | break; | |
9771b263 | 203 | case TYPE_NONE: |
f8ed6dc5 JS |
204 | gcc_unreachable (); |
205 | } | |
206 | } | |
207 | fprintf (stderr, "\n" "%s:%d: %s: @@%%@@ %d types ::\n", | |
208 | lbasename (fil), lin, msg, nb_types); | |
209 | if (nb_scalar > 0 || nb_string > 0) | |
210 | fprintf (stderr, "@@%%@@ %d scalars, %d strings\n", nb_scalar, nb_string); | |
211 | if (nb_struct > 0 || nb_union > 0) | |
212 | fprintf (stderr, "@@%%@@ %d structs, %d unions\n", nb_struct, nb_union); | |
213 | if (nb_pointer > 0 || nb_array > 0) | |
214 | fprintf (stderr, "@@%%@@ %d pointers, %d arrays\n", nb_pointer, nb_array); | |
63f5d5b8 TS |
215 | if (nb_lang_struct > 0) |
216 | fprintf (stderr, "@@%%@@ %d lang_structs\n", nb_lang_struct); | |
0823efed DN |
217 | if (nb_user_struct > 0) |
218 | fprintf (stderr, "@@%%@@ %d user_structs\n", nb_user_struct); | |
9771b263 DN |
219 | if (nb_undefined > 0) |
220 | fprintf (stderr, "@@%%@@ %d undefined types\n", nb_undefined); | |
f8ed6dc5 JS |
221 | fprintf (stderr, "\n"); |
222 | } | |
f8ed6dc5 | 223 | |
11a67599 ZW |
224 | /* Scan the input file, LIST, and determine how much space we need to |
225 | store strings in. Also, count the number of language directories | |
226 | and files. The numbers returned are overestimates as they does not | |
227 | consider repeated files. */ | |
228 | static size_t | |
229 | measure_input_list (FILE *list) | |
230 | { | |
231 | size_t n = 0; | |
232 | int c; | |
233 | bool atbol = true; | |
234 | num_lang_dirs = 0; | |
bd117bb6 | 235 | num_gt_files = plugin_files ? nb_plugin_files : 0; |
11a67599 ZW |
236 | while ((c = getc (list)) != EOF) |
237 | { | |
238 | n++; | |
239 | if (atbol) | |
240 | { | |
241 | if (c == '[') | |
242 | num_lang_dirs++; | |
243 | else | |
244 | { | |
245 | /* Add space for a lang_bitmap before the input file name. */ | |
246 | n += sizeof (lang_bitmap); | |
247 | num_gt_files++; | |
248 | } | |
249 | atbol = false; | |
250 | } | |
251 | ||
252 | if (c == '\n') | |
253 | atbol = true; | |
254 | } | |
255 | ||
256 | rewind (list); | |
257 | return n; | |
258 | } | |
259 | ||
260 | /* Read one input line from LIST to HEREP (which is updated). A | |
261 | pointer to the string is returned via LINEP. If it was a language | |
262 | subdirectory in square brackets, strip off the square brackets and | |
263 | return true. Otherwise, leave space before the string for a | |
264 | lang_bitmap, and return false. At EOF, returns false, does not | |
265 | touch *HEREP, and sets *LINEP to NULL. POS is used for | |
266 | diagnostics. */ | |
267 | static bool | |
e1b793e7 | 268 | read_input_line (FILE *list, char **herep, char **linep, struct fileloc *pos) |
11a67599 ZW |
269 | { |
270 | char *here = *herep; | |
271 | char *line; | |
272 | int c = getc (list); | |
273 | ||
1b77ee03 MM |
274 | /* Read over whitespace. */ |
275 | while (c == '\n' || c == ' ') | |
276 | c = getc (list); | |
277 | ||
11a67599 ZW |
278 | if (c == EOF) |
279 | { | |
280 | *linep = 0; | |
281 | return false; | |
282 | } | |
283 | else if (c == '[') | |
284 | { | |
285 | /* No space for a lang_bitmap is necessary. Discard the '['. */ | |
286 | c = getc (list); | |
287 | line = here; | |
288 | while (c != ']' && c != '\n' && c != EOF) | |
289 | { | |
290 | *here++ = c; | |
291 | c = getc (list); | |
292 | } | |
293 | *here++ = '\0'; | |
294 | ||
295 | if (c == ']') | |
296 | { | |
e1b793e7 | 297 | c = getc (list); /* eat what should be a newline */ |
11a67599 ZW |
298 | if (c != '\n' && c != EOF) |
299 | error_at_line (pos, "junk on line after language tag [%s]", line); | |
300 | } | |
301 | else | |
e1b793e7 BS |
302 | error_at_line (pos, "missing close bracket for language tag [%s", |
303 | line); | |
11a67599 ZW |
304 | |
305 | *herep = here; | |
306 | *linep = line; | |
307 | return true; | |
308 | } | |
309 | else | |
310 | { | |
311 | /* Leave space for a lang_bitmap. */ | |
312 | memset (here, 0, sizeof (lang_bitmap)); | |
313 | here += sizeof (lang_bitmap); | |
314 | line = here; | |
315 | do | |
316 | { | |
317 | *here++ = c; | |
318 | c = getc (list); | |
319 | } | |
320 | while (c != EOF && c != '\n'); | |
321 | *here++ = '\0'; | |
322 | *herep = here; | |
323 | *linep = line; | |
324 | return false; | |
325 | } | |
326 | } | |
327 | ||
328 | /* Read the list of input files from LIST and compute all of the | |
329 | relevant tables. There is one file per line of the list. At | |
330 | first, all the files on the list are language-generic, but | |
331 | eventually a line will appear which is the name of a language | |
332 | subdirectory in square brackets, like this: [cp]. All subsequent | |
333 | files are specific to that language, until another language | |
334 | subdirectory tag appears. Files can appear more than once, if | |
335 | they apply to more than one language. */ | |
336 | static void | |
337 | read_input_list (const char *listname) | |
338 | { | |
339 | FILE *list = fopen (listname, "r"); | |
340 | if (!list) | |
7ca92787 | 341 | fatal ("cannot open %s: %s", listname, xstrerror (errno)); |
11a67599 ZW |
342 | else |
343 | { | |
344 | struct fileloc epos; | |
345 | size_t bufsz = measure_input_list (list); | |
346 | char *buf = XNEWVEC (char, bufsz); | |
347 | char *here = buf; | |
348 | char *committed = buf; | |
349 | char *limit = buf + bufsz; | |
350 | char *line; | |
351 | bool is_language; | |
352 | size_t langno = 0; | |
353 | size_t nfiles = 0; | |
354 | lang_bitmap curlangs = (1 << num_lang_dirs) - 1; | |
355 | ||
14c4815e | 356 | epos.file = input_file_by_name (listname); |
11a67599 ZW |
357 | epos.line = 0; |
358 | ||
359 | lang_dir_names = XNEWVEC (const char *, num_lang_dirs); | |
14c4815e | 360 | gt_files = XNEWVEC (const input_file *, num_gt_files); |
11a67599 ZW |
361 | |
362 | for (;;) | |
363 | { | |
364 | next_line: | |
365 | epos.line++; | |
366 | committed = here; | |
367 | is_language = read_input_line (list, &here, &line, &epos); | |
368 | gcc_assert (here <= limit); | |
369 | if (line == 0) | |
370 | break; | |
371 | else if (is_language) | |
372 | { | |
373 | size_t i; | |
374 | gcc_assert (langno <= num_lang_dirs); | |
375 | for (i = 0; i < langno; i++) | |
376 | if (strcmp (lang_dir_names[i], line) == 0) | |
377 | { | |
e1b793e7 BS |
378 | error_at_line (&epos, "duplicate language tag [%s]", |
379 | line); | |
11a67599 ZW |
380 | curlangs = 1 << i; |
381 | here = committed; | |
382 | goto next_line; | |
383 | } | |
384 | ||
385 | curlangs = 1 << langno; | |
386 | lang_dir_names[langno++] = line; | |
387 | } | |
388 | else | |
389 | { | |
390 | size_t i; | |
14c4815e | 391 | input_file *inpf = input_file_by_name (line); |
11a67599 ZW |
392 | gcc_assert (nfiles <= num_gt_files); |
393 | for (i = 0; i < nfiles; i++) | |
14c4815e BS |
394 | /* Since the input_file-s are uniquely hash-consed, we |
395 | can just compare pointers! */ | |
396 | if (gt_files[i] == inpf) | |
11a67599 ZW |
397 | { |
398 | /* Throw away the string we just read, and add the | |
399 | current language to the existing string's bitmap. */ | |
14c4815e | 400 | lang_bitmap bmap = get_lang_bitmap (inpf); |
11a67599 | 401 | if (bmap & curlangs) |
e1b793e7 BS |
402 | error_at_line (&epos, |
403 | "file %s specified more than once " | |
404 | "for language %s", line, | |
405 | langno == | |
406 | 0 ? "(all)" : lang_dir_names[langno - | |
407 | 1]); | |
11a67599 ZW |
408 | |
409 | bmap |= curlangs; | |
14c4815e | 410 | set_lang_bitmap (inpf, bmap); |
11a67599 ZW |
411 | here = committed; |
412 | goto next_line; | |
413 | } | |
414 | ||
14c4815e BS |
415 | set_lang_bitmap (inpf, curlangs); |
416 | gt_files[nfiles++] = inpf; | |
11a67599 ZW |
417 | } |
418 | } | |
419 | /* Update the global counts now that we know accurately how many | |
e1b793e7 | 420 | things there are. (We do not bother resizing the arrays down.) */ |
11a67599 | 421 | num_lang_dirs = langno; |
bd117bb6 | 422 | /* Add the plugin files if provided. */ |
b8698a0f | 423 | if (plugin_files) |
bd117bb6 | 424 | { |
9f78bf05 | 425 | size_t i; |
bd117bb6 BS |
426 | for (i = 0; i < nb_plugin_files; i++) |
427 | gt_files[nfiles++] = plugin_files[i]; | |
428 | } | |
11a67599 ZW |
429 | num_gt_files = nfiles; |
430 | } | |
431 | ||
432 | /* Sanity check: any file that resides in a language subdirectory | |
433 | (e.g. 'cp') ought to belong to the corresponding language. | |
434 | ??? Still true if for instance ObjC++ is enabled and C++ isn't? | |
435 | (Can you even do that? Should you be allowed to?) */ | |
436 | { | |
437 | size_t f; | |
438 | for (f = 0; f < num_gt_files; f++) | |
439 | { | |
440 | lang_bitmap bitmap = get_lang_bitmap (gt_files[f]); | |
441 | const char *basename = get_file_basename (gt_files[f]); | |
442 | const char *slashpos = strchr (basename, '/'); | |
ba78087b KT |
443 | #ifdef HAVE_DOS_BASED_FILE_SYSTEM |
444 | const char *slashpos2 = strchr (basename, '\\'); | |
445 | ||
446 | if (!slashpos || (slashpos2 && slashpos2 < slashpos)) | |
447 | slashpos = slashpos2; | |
448 | #endif | |
11a67599 ZW |
449 | |
450 | if (slashpos) | |
451 | { | |
452 | size_t l; | |
453 | for (l = 0; l < num_lang_dirs; l++) | |
e1b793e7 | 454 | if ((size_t) (slashpos - basename) == strlen (lang_dir_names[l]) |
11a67599 ZW |
455 | && memcmp (basename, lang_dir_names[l], |
456 | strlen (lang_dir_names[l])) == 0) | |
457 | { | |
458 | if (!(bitmap & (1 << l))) | |
459 | error ("%s is in language directory '%s' but is not " | |
460 | "tagged for that language", | |
461 | basename, lang_dir_names[l]); | |
462 | break; | |
463 | } | |
e1b793e7 | 464 | } |
11a67599 ZW |
465 | } |
466 | } | |
467 | ||
468 | if (ferror (list)) | |
7ca92787 | 469 | fatal ("error reading %s: %s", listname, xstrerror (errno)); |
11a67599 ZW |
470 | |
471 | fclose (list); | |
472 | } | |
e1b793e7 | 473 | \f |
11a67599 ZW |
474 | |
475 | ||
9f313342 GK |
476 | /* The one and only TYPE_STRING. */ |
477 | ||
412dc29d BS |
478 | struct type string_type = { |
479 | TYPE_STRING, 0, 0, 0, GC_USED, {0} | |
95161faf ZW |
480 | }; |
481 | ||
482 | /* The two and only TYPE_SCALARs. Their u.scalar_is_char flags are | |
412dc29d | 483 | set early in main. */ |
95161faf | 484 | |
412dc29d BS |
485 | struct type scalar_nonchar = { |
486 | TYPE_SCALAR, 0, 0, 0, GC_USED, {0} | |
95161faf | 487 | }; |
e1b793e7 | 488 | |
412dc29d BS |
489 | struct type scalar_char = { |
490 | TYPE_SCALAR, 0, 0, 0, GC_USED, {0} | |
3d7aafde | 491 | }; |
e2500fed | 492 | |
9f313342 GK |
493 | /* Lists of various things. */ |
494 | ||
313465bb DN |
495 | pair_p typedefs = NULL; |
496 | type_p structures = NULL; | |
313465bb | 497 | pair_p variables = NULL; |
e2500fed | 498 | |
3d7aafde AJ |
499 | static type_p adjust_field_tree_exp (type_p t, options_p opt); |
500 | static type_p adjust_field_rtx_def (type_p t, options_p opt); | |
36a5eadd | 501 | |
9f313342 GK |
502 | /* Define S as a typedef to T at POS. */ |
503 | ||
e2500fed | 504 | void |
3d7aafde | 505 | do_typedef (const char *s, type_p t, struct fileloc *pos) |
e2500fed GK |
506 | { |
507 | pair_p p; | |
508 | ||
2d593c86 TT |
509 | /* temporary kludge - gengtype doesn't handle conditionals or |
510 | macros. Ignore any attempt to typedef CUMULATIVE_ARGS, unless it | |
511 | is coming from this file (main() sets them up with safe dummy | |
512 | definitions). */ | |
513 | if (!strcmp (s, "CUMULATIVE_ARGS") && pos->file != this_file) | |
01d419ae ZW |
514 | return; |
515 | ||
e2500fed GK |
516 | for (p = typedefs; p != NULL; p = p->next) |
517 | if (strcmp (p->name, s) == 0) | |
518 | { | |
807e902e | 519 | if (p->type != t && strcmp (s, "result_type") != 0) |
e2500fed GK |
520 | { |
521 | error_at_line (pos, "type `%s' previously defined", s); | |
522 | error_at_line (&p->line, "previously defined here"); | |
523 | } | |
524 | return; | |
525 | } | |
526 | ||
5d038c4c | 527 | p = XNEW (struct pair); |
e2500fed GK |
528 | p->next = typedefs; |
529 | p->name = s; | |
530 | p->type = t; | |
531 | p->line = *pos; | |
0277fabf | 532 | p->opt = NULL; |
e2500fed GK |
533 | typedefs = p; |
534 | } | |
535 | ||
95161faf ZW |
536 | /* Define S as a typename of a scalar. Cannot be used to define |
537 | typedefs of 'char'. Note: is also used for pointer-to-function | |
538 | typedefs (which are therefore not treated as pointers). */ | |
36a5eadd | 539 | |
95161faf | 540 | void |
3d7aafde | 541 | do_scalar_typedef (const char *s, struct fileloc *pos) |
36a5eadd | 542 | { |
95161faf | 543 | do_typedef (s, &scalar_nonchar, pos); |
36a5eadd GK |
544 | } |
545 | ||
20e3f942 L |
546 | /* Similar to strtok_r. */ |
547 | ||
548 | static char * | |
549 | strtoken (char *str, const char *delim, char **next) | |
550 | { | |
551 | char *p; | |
552 | ||
553 | if (str == NULL) | |
554 | str = *next; | |
555 | ||
556 | /* Skip the leading delimiters. */ | |
557 | str += strspn (str, delim); | |
558 | if (*str == '\0') | |
559 | /* This is an empty token. */ | |
560 | return NULL; | |
561 | ||
562 | /* The current token. */ | |
563 | p = str; | |
564 | ||
565 | /* Find the next delimiter. */ | |
566 | str += strcspn (str, delim); | |
567 | if (*str == '\0') | |
568 | /* This is the last token. */ | |
569 | *next = str; | |
570 | else | |
571 | { | |
572 | /* Terminate the current token. */ | |
573 | *str = '\0'; | |
574 | /* Advance to the next token. */ | |
575 | *next = str + 1; | |
576 | } | |
577 | ||
578 | return p; | |
579 | } | |
0823efed DN |
580 | |
581 | /* Define TYPE_NAME to be a user defined type at location POS. */ | |
582 | ||
9771b263 | 583 | type_p |
0823efed DN |
584 | create_user_defined_type (const char *type_name, struct fileloc *pos) |
585 | { | |
586 | type_p ty = find_structure (type_name, TYPE_USER_STRUCT); | |
158f4e4f DM |
587 | |
588 | /* We might have already seen an incomplete decl of the given type, | |
589 | in which case we won't have yet seen a GTY((user)), and the type will | |
590 | only have kind "TYPE_STRUCT". Mark it as a user struct. */ | |
591 | ty->kind = TYPE_USER_STRUCT; | |
592 | ||
0823efed DN |
593 | ty->u.s.line = *pos; |
594 | ty->u.s.bitmap = get_lang_bitmap (pos->file); | |
595 | do_typedef (type_name, ty, pos); | |
596 | ||
597 | /* If TYPE_NAME specifies a template, create references to the types | |
598 | in the template by pretending that each type is a field of TY. | |
599 | This is needed to make sure that the types referenced by the | |
600 | template are marked as used. */ | |
601 | char *str = xstrdup (type_name); | |
602 | char *open_bracket = strchr (str, '<'); | |
603 | if (open_bracket) | |
604 | { | |
605 | /* We only accept simple template declarations (see | |
606 | require_template_declaration), so we only need to parse a | |
607 | comma-separated list of strings, implicitly assumed to | |
9aa54cc9 | 608 | be type names, potentially with "*" characters. */ |
0823efed | 609 | char *arg = open_bracket + 1; |
e54bd4ab JJ |
610 | /* Workaround -Wmaybe-uninitialized false positive during |
611 | profiledbootstrap by initializing it. */ | |
612 | char *next = NULL; | |
20e3f942 | 613 | char *type_id = strtoken (arg, ",>", &next); |
0823efed DN |
614 | pair_p fields = 0; |
615 | while (type_id) | |
616 | { | |
617 | /* Create a new field for every type found inside the template | |
618 | parameter list. */ | |
9aa54cc9 DM |
619 | |
620 | /* Support a single trailing "*" character. */ | |
621 | const char *star = strchr (type_id, '*'); | |
622 | int is_ptr = (star != NULL); | |
623 | size_t offset_to_star = star - type_id; | |
624 | if (is_ptr) | |
625 | offset_to_star = star - type_id; | |
626 | ||
2a22f99c TS |
627 | if (strstr (type_id, "char*")) |
628 | { | |
629 | type_id = strtoken (0, ",>", &next); | |
630 | continue; | |
631 | } | |
632 | ||
9aa54cc9 DM |
633 | char *field_name = xstrdup (type_id); |
634 | ||
635 | type_p arg_type; | |
636 | if (is_ptr) | |
637 | { | |
638 | /* Strip off the first '*' character (and any subsequent text). */ | |
639 | *(field_name + offset_to_star) = '\0'; | |
640 | ||
641 | arg_type = find_structure (field_name, TYPE_STRUCT); | |
642 | arg_type = create_pointer (arg_type); | |
643 | } | |
644 | else | |
645 | arg_type = resolve_typedef (field_name, pos); | |
646 | ||
0823efed | 647 | fields = create_field_at (fields, arg_type, field_name, 0, pos); |
20e3f942 | 648 | type_id = strtoken (0, ",>", &next); |
0823efed DN |
649 | } |
650 | ||
651 | /* Associate the field list to TY. */ | |
652 | ty->u.s.fields = fields; | |
653 | } | |
654 | free (str); | |
655 | ||
656 | return ty; | |
657 | } | |
658 | ||
659 | ||
9771b263 DN |
660 | /* Given a typedef name S, return its associated type. Return NULL if |
661 | S is not a registered type name. */ | |
9f313342 | 662 | |
9771b263 DN |
663 | static type_p |
664 | type_for_name (const char *s) | |
e2500fed GK |
665 | { |
666 | pair_p p; | |
c74f54a0 DM |
667 | |
668 | /* Special-case support for types within a "gcc::" namespace. Rather | |
669 | than fully-supporting namespaces, simply strip off the "gcc::" prefix | |
670 | where present. This allows us to have GTY roots of this form: | |
671 | extern GTY(()) gcc::some_type *some_ptr; | |
672 | where the autogenerated functions will refer to simply "some_type", | |
673 | where they can be resolved into their namespace. */ | |
01512446 | 674 | if (strncmp (s, "gcc::", 5) == 0) |
c74f54a0 DM |
675 | s += 5; |
676 | ||
e2500fed GK |
677 | for (p = typedefs; p != NULL; p = p->next) |
678 | if (strcmp (p->name, s) == 0) | |
679 | return p->type; | |
9771b263 DN |
680 | return NULL; |
681 | } | |
682 | ||
683 | ||
684 | /* Create an undefined type with name S and location POS. Return the | |
685 | newly created type. */ | |
686 | ||
687 | static type_p | |
688 | create_undefined_type (const char *s, struct fileloc *pos) | |
689 | { | |
690 | type_p ty = find_structure (s, TYPE_UNDEFINED); | |
691 | ty->u.s.line = *pos; | |
692 | ty->u.s.bitmap = get_lang_bitmap (pos->file); | |
693 | do_typedef (s, ty, pos); | |
694 | return ty; | |
695 | } | |
696 | ||
697 | ||
698 | /* Return the type previously defined for S. Use POS to report errors. */ | |
0823efed | 699 | |
9771b263 DN |
700 | type_p |
701 | resolve_typedef (const char *s, struct fileloc *pos) | |
702 | { | |
703 | bool is_template_instance = (strchr (s, '<') != NULL); | |
704 | type_p p = type_for_name (s); | |
705 | ||
706 | /* If we did not find a typedef registered, generate a TYPE_UNDEFINED | |
707 | type for regular type identifiers. If the type identifier S is a | |
708 | template instantiation, however, we treat it as a user defined | |
709 | type. | |
710 | ||
711 | FIXME, this is actually a limitation in gengtype. Supporting | |
712 | template types and their instances would require keeping separate | |
713 | track of the basic types definition and its instances. This | |
714 | essentially forces all template classes in GC to be marked | |
715 | GTY((user)). */ | |
716 | if (!p) | |
717 | p = (is_template_instance) | |
718 | ? create_user_defined_type (s, pos) | |
719 | : create_undefined_type (s, pos); | |
720 | ||
721 | return p; | |
e2500fed GK |
722 | } |
723 | ||
32fe5271 DM |
724 | /* Add SUBCLASS to head of linked list of BASE's subclasses. */ |
725 | ||
726 | void add_subclass (type_p base, type_p subclass) | |
727 | { | |
728 | gcc_assert (union_or_struct_p (base)); | |
729 | gcc_assert (union_or_struct_p (subclass)); | |
730 | ||
731 | subclass->u.s.next_sibling_class = base->u.s.first_subclass; | |
732 | base->u.s.first_subclass = subclass; | |
733 | } | |
313465bb | 734 | |
0823efed DN |
735 | /* Create and return a new structure with tag NAME at POS with fields |
736 | FIELDS and options O. The KIND of structure must be one of | |
737 | TYPE_STRUCT, TYPE_UNION or TYPE_USER_STRUCT. */ | |
9f313342 | 738 | |
0f01f026 | 739 | type_p |
0823efed | 740 | new_structure (const char *name, enum typekind kind, struct fileloc *pos, |
18aa2b04 | 741 | pair_p fields, options_p o, type_p base_class) |
e2500fed GK |
742 | { |
743 | type_p si; | |
744 | type_p s = NULL; | |
11a67599 | 745 | lang_bitmap bitmap = get_lang_bitmap (pos->file); |
0823efed | 746 | bool isunion = (kind == TYPE_UNION); |
98a32a4c | 747 | type_p *p = &structures; |
0823efed DN |
748 | |
749 | gcc_assert (union_or_struct_p (kind)); | |
e2500fed | 750 | |
98a32a4c | 751 | for (si = structures; si != NULL; p = &si->next, si = *p) |
e1b793e7 | 752 | if (strcmp (name, si->u.s.tag) == 0 && UNION_P (si) == isunion) |
e2500fed GK |
753 | { |
754 | type_p ls = NULL; | |
755 | if (si->kind == TYPE_LANG_STRUCT) | |
756 | { | |
757 | ls = si; | |
3d7aafde | 758 | |
e2500fed GK |
759 | for (si = ls->u.s.lang_struct; si != NULL; si = si->next) |
760 | if (si->u.s.bitmap == bitmap) | |
761 | s = si; | |
762 | } | |
763 | else if (si->u.s.line.file != NULL && si->u.s.bitmap != bitmap) | |
764 | { | |
765 | ls = si; | |
92724e1d | 766 | type_count++; |
5d038c4c | 767 | si = XCNEW (struct type); |
e2500fed GK |
768 | memcpy (si, ls, sizeof (struct type)); |
769 | ls->kind = TYPE_LANG_STRUCT; | |
770 | ls->u.s.lang_struct = si; | |
771 | ls->u.s.fields = NULL; | |
772 | si->next = NULL; | |
92724e1d | 773 | si->state_number = -type_count; |
e2500fed GK |
774 | si->pointer_to = NULL; |
775 | si->u.s.lang_struct = ls; | |
776 | } | |
777 | else | |
778 | s = si; | |
779 | ||
780 | if (ls != NULL && s == NULL) | |
781 | { | |
92724e1d | 782 | type_count++; |
5d038c4c | 783 | s = XCNEW (struct type); |
92724e1d | 784 | s->state_number = -type_count; |
e2500fed GK |
785 | s->next = ls->u.s.lang_struct; |
786 | ls->u.s.lang_struct = s; | |
787 | s->u.s.lang_struct = ls; | |
788 | } | |
789 | break; | |
790 | } | |
3d7aafde | 791 | |
e2500fed GK |
792 | if (s == NULL) |
793 | { | |
92724e1d | 794 | type_count++; |
5d038c4c | 795 | s = XCNEW (struct type); |
92724e1d | 796 | s->state_number = -type_count; |
98a32a4c | 797 | *p = s; |
e2500fed GK |
798 | } |
799 | ||
313465bb | 800 | if (s->u.s.lang_struct && (s->u.s.lang_struct->u.s.bitmap & bitmap)) |
e2500fed | 801 | { |
01d419ae ZW |
802 | error_at_line (pos, "duplicate definition of '%s %s'", |
803 | isunion ? "union" : "struct", s->u.s.tag); | |
e2500fed GK |
804 | error_at_line (&s->u.s.line, "previous definition here"); |
805 | } | |
806 | ||
0823efed | 807 | s->kind = kind; |
e2500fed GK |
808 | s->u.s.tag = name; |
809 | s->u.s.line = *pos; | |
810 | s->u.s.fields = fields; | |
811 | s->u.s.opt = o; | |
812 | s->u.s.bitmap = bitmap; | |
813 | if (s->u.s.lang_struct) | |
814 | s->u.s.lang_struct->u.s.bitmap |= bitmap; | |
18aa2b04 | 815 | s->u.s.base_class = base_class; |
32fe5271 DM |
816 | if (base_class) |
817 | add_subclass (base_class, s); | |
0f01f026 | 818 | |
e1b793e7 | 819 | return s; |
e2500fed GK |
820 | } |
821 | ||
0823efed DN |
822 | /* Return the previously-defined structure or union with tag NAME, |
823 | or a new empty structure or union if none was defined previously. | |
824 | The KIND of structure must be one of TYPE_STRUCT, TYPE_UNION or | |
825 | TYPE_USER_STRUCT. */ | |
9f313342 | 826 | |
e2500fed | 827 | type_p |
0823efed | 828 | find_structure (const char *name, enum typekind kind) |
e2500fed GK |
829 | { |
830 | type_p s; | |
0823efed | 831 | bool isunion = (kind == TYPE_UNION); |
98a32a4c | 832 | type_p *p = &structures; |
0823efed | 833 | |
9771b263 | 834 | gcc_assert (kind == TYPE_UNDEFINED || union_or_struct_p (kind)); |
e2500fed | 835 | |
98a32a4c | 836 | for (s = structures; s != NULL; p = &s->next, s = *p) |
e1b793e7 | 837 | if (strcmp (name, s->u.s.tag) == 0 && UNION_P (s) == isunion) |
e2500fed GK |
838 | return s; |
839 | ||
92724e1d | 840 | type_count++; |
5d038c4c | 841 | s = XCNEW (struct type); |
92724e1d | 842 | s->state_number = -type_count; |
0823efed | 843 | s->kind = kind; |
e2500fed | 844 | s->u.s.tag = name; |
98a32a4c | 845 | *p = s; |
e2500fed GK |
846 | return s; |
847 | } | |
848 | ||
9f313342 GK |
849 | /* Return a scalar type with name NAME. */ |
850 | ||
e2500fed | 851 | type_p |
95161faf | 852 | create_scalar_type (const char *name) |
e2500fed | 853 | { |
95161faf ZW |
854 | if (!strcmp (name, "char") || !strcmp (name, "unsigned char")) |
855 | return &scalar_char; | |
856 | else | |
857 | return &scalar_nonchar; | |
e2500fed GK |
858 | } |
859 | ||
313465bb | 860 | |
9f313342 GK |
861 | /* Return a pointer to T. */ |
862 | ||
e2500fed | 863 | type_p |
3d7aafde | 864 | create_pointer (type_p t) |
e2500fed | 865 | { |
e1b793e7 | 866 | if (!t->pointer_to) |
e2500fed | 867 | { |
5d038c4c | 868 | type_p r = XCNEW (struct type); |
92724e1d BS |
869 | type_count++; |
870 | r->state_number = -type_count; | |
e2500fed GK |
871 | r->kind = TYPE_POINTER; |
872 | r->u.p = t; | |
873 | t->pointer_to = r; | |
874 | } | |
875 | return t->pointer_to; | |
876 | } | |
877 | ||
9f313342 GK |
878 | /* Return an array of length LEN. */ |
879 | ||
e2500fed | 880 | type_p |
3d7aafde | 881 | create_array (type_p t, const char *len) |
e2500fed GK |
882 | { |
883 | type_p v; | |
3d7aafde | 884 | |
92724e1d | 885 | type_count++; |
5d038c4c | 886 | v = XCNEW (struct type); |
e2500fed | 887 | v->kind = TYPE_ARRAY; |
92724e1d | 888 | v->state_number = -type_count; |
e2500fed GK |
889 | v->u.a.p = t; |
890 | v->u.a.len = len; | |
891 | return v; | |
892 | } | |
893 | ||
412dc29d BS |
894 | /* Return a string options structure with name NAME and info INFO. |
895 | NEXT is the next option in the chain. */ | |
896 | options_p | |
897 | create_string_option (options_p next, const char *name, const char *info) | |
898 | { | |
899 | options_p o = XNEW (struct options); | |
900 | o->kind = OPTION_STRING; | |
901 | o->next = next; | |
902 | o->name = name; | |
903 | o->info.string = info; | |
904 | return o; | |
905 | } | |
0f01f026 | 906 | |
412dc29d BS |
907 | /* Create a type options structure with name NAME and info INFO. NEXT |
908 | is the next option in the chain. */ | |
1431042e | 909 | options_p |
412dc29d | 910 | create_type_option (options_p next, const char* name, type_p info) |
1431042e | 911 | { |
5d038c4c | 912 | options_p o = XNEW (struct options); |
0f01f026 | 913 | o->next = next; |
1431042e | 914 | o->name = name; |
412dc29d BS |
915 | o->kind = OPTION_TYPE; |
916 | o->info.type = info; | |
917 | return o; | |
918 | } | |
919 | ||
920 | /* Create a nested pointer options structure with name NAME and info | |
921 | INFO. NEXT is the next option in the chain. */ | |
922 | options_p | |
923 | create_nested_option (options_p next, const char* name, | |
924 | struct nested_ptr_data* info) | |
925 | { | |
926 | options_p o; | |
927 | o = XNEW (struct options); | |
928 | o->next = next; | |
929 | o->name = name; | |
930 | o->kind = OPTION_NESTED; | |
931 | o->info.nested = info; | |
1431042e ZW |
932 | return o; |
933 | } | |
934 | ||
17defa6a ZW |
935 | /* Return an options structure for a "nested_ptr" option. */ |
936 | options_p | |
065ae611 ZW |
937 | create_nested_ptr_option (options_p next, type_p t, |
938 | const char *to, const char *from) | |
17defa6a ZW |
939 | { |
940 | struct nested_ptr_data *d = XNEW (struct nested_ptr_data); | |
941 | ||
942 | d->type = adjust_field_type (t, 0); | |
943 | d->convert_to = to; | |
944 | d->convert_from = from; | |
412dc29d | 945 | return create_nested_option (next, "nested_ptr", d); |
17defa6a ZW |
946 | } |
947 | ||
36a5eadd GK |
948 | /* Add a variable named S of type T with options O defined at POS, |
949 | to `variables'. */ | |
36a5eadd | 950 | void |
3d7aafde | 951 | note_variable (const char *s, type_p t, options_p o, struct fileloc *pos) |
36a5eadd GK |
952 | { |
953 | pair_p n; | |
5d038c4c | 954 | n = XNEW (struct pair); |
36a5eadd GK |
955 | n->name = s; |
956 | n->type = t; | |
957 | n->line = *pos; | |
958 | n->opt = o; | |
959 | n->next = variables; | |
960 | variables = n; | |
961 | } | |
962 | ||
065ae611 | 963 | /* Most-general structure field creator. */ |
0f01f026 | 964 | static pair_p |
065ae611 | 965 | create_field_all (pair_p next, type_p type, const char *name, options_p opt, |
14c4815e | 966 | const input_file *inpf, int line) |
0f01f026 RS |
967 | { |
968 | pair_p field; | |
969 | ||
970 | field = XNEW (struct pair); | |
971 | field->next = next; | |
972 | field->type = type; | |
973 | field->name = name; | |
065ae611 | 974 | field->opt = opt; |
14c4815e | 975 | field->line.file = inpf; |
065ae611 | 976 | field->line.line = line; |
0f01f026 RS |
977 | return field; |
978 | } | |
979 | ||
065ae611 ZW |
980 | /* Create a field that came from the source code we are scanning, |
981 | i.e. we have a 'struct fileloc', and possibly options; also, | |
982 | adjust_field_type should be called. */ | |
983 | pair_p | |
984 | create_field_at (pair_p next, type_p type, const char *name, options_p opt, | |
985 | struct fileloc *pos) | |
986 | { | |
987 | return create_field_all (next, adjust_field_type (type, opt), | |
988 | name, opt, pos->file, pos->line); | |
989 | } | |
990 | ||
991 | /* Create a fake field with the given type and name. NEXT is the next | |
992 | field in the chain. */ | |
993 | #define create_field(next,type,name) \ | |
c3284718 | 994 | create_field_all (next,type,name, 0, this_file, __LINE__) |
065ae611 | 995 | |
aacd3885 RS |
996 | /* Like create_field, but the field is only valid when condition COND |
997 | is true. */ | |
998 | ||
999 | static pair_p | |
065ae611 ZW |
1000 | create_optional_field_ (pair_p next, type_p type, const char *name, |
1001 | const char *cond, int line) | |
aacd3885 RS |
1002 | { |
1003 | static int id = 1; | |
065ae611 | 1004 | pair_p union_fields; |
aacd3885 RS |
1005 | type_p union_type; |
1006 | ||
1007 | /* Create a fake union type with a single nameless field of type TYPE. | |
1008 | The field has a tag of "1". This allows us to make the presence | |
1009 | of a field of type TYPE depend on some boolean "desc" being true. */ | |
1010 | union_fields = create_field (NULL, type, ""); | |
412dc29d BS |
1011 | union_fields->opt = |
1012 | create_string_option (union_fields->opt, "dot", ""); | |
1013 | union_fields->opt = | |
1014 | create_string_option (union_fields->opt, "tag", "1"); | |
1015 | union_type = | |
0823efed | 1016 | new_structure (xasprintf ("%s_%d", "fake_union", id++), TYPE_UNION, |
18aa2b04 | 1017 | &lexer_line, union_fields, NULL, NULL); |
aacd3885 RS |
1018 | |
1019 | /* Create the field and give it the new fake union type. Add a "desc" | |
1020 | tag that specifies the condition under which the field is valid. */ | |
065ae611 | 1021 | return create_field_all (next, union_type, name, |
412dc29d BS |
1022 | create_string_option (0, "desc", cond), |
1023 | this_file, line); | |
aacd3885 | 1024 | } |
e1b793e7 | 1025 | |
065ae611 | 1026 | #define create_optional_field(next,type,name,cond) \ |
f8ed6dc5 | 1027 | create_optional_field_(next,type,name,cond,__LINE__) |
aacd3885 | 1028 | |
01d419ae ZW |
1029 | /* Reverse a linked list of 'struct pair's in place. */ |
1030 | pair_p | |
1031 | nreverse_pairs (pair_p list) | |
1032 | { | |
1033 | pair_p prev = 0, p, next; | |
1034 | for (p = list; p; p = next) | |
1035 | { | |
1036 | next = p->next; | |
1037 | p->next = prev; | |
1038 | prev = p; | |
1039 | } | |
1040 | return prev; | |
1041 | } | |
01d419ae | 1042 | \f |
e1b793e7 | 1043 | |
9e995780 | 1044 | /* We don't care how long a CONST_DOUBLE is. */ |
36a5eadd | 1045 | #define CONST_DOUBLE_FORMAT "ww" |
9e995780 ZW |
1046 | /* We don't want to see codes that are only for generator files. */ |
1047 | #undef GENERATOR_FILE | |
1048 | ||
e1b793e7 BS |
1049 | enum rtx_code |
1050 | { | |
9e995780 ZW |
1051 | #define DEF_RTL_EXPR(ENUM, NAME, FORMAT, CLASS) ENUM , |
1052 | #include "rtl.def" | |
1053 | #undef DEF_RTL_EXPR | |
1054 | NUM_RTX_CODE | |
1055 | }; | |
1056 | ||
e1b793e7 | 1057 | static const char *const rtx_name[NUM_RTX_CODE] = { |
9e995780 ZW |
1058 | #define DEF_RTL_EXPR(ENUM, NAME, FORMAT, CLASS) NAME , |
1059 | #include "rtl.def" | |
1060 | #undef DEF_RTL_EXPR | |
1061 | }; | |
1062 | ||
e1b793e7 | 1063 | static const char *const rtx_format[NUM_RTX_CODE] = { |
36a5eadd GK |
1064 | #define DEF_RTL_EXPR(ENUM, NAME, FORMAT, CLASS) FORMAT , |
1065 | #include "rtl.def" | |
1066 | #undef DEF_RTL_EXPR | |
1067 | }; | |
1068 | ||
5ba6918e | 1069 | static int rtx_next_new[NUM_RTX_CODE]; |
36a5eadd | 1070 | |
9e995780 ZW |
1071 | /* We also need codes and names for insn notes (not register notes). |
1072 | Note that we do *not* bias the note values here. */ | |
e1b793e7 BS |
1073 | enum insn_note |
1074 | { | |
9e995780 ZW |
1075 | #define DEF_INSN_NOTE(NAME) NAME, |
1076 | #include "insn-notes.def" | |
1077 | #undef DEF_INSN_NOTE | |
1078 | ||
1079 | NOTE_INSN_MAX | |
1080 | }; | |
1081 | ||
79e4e6a6 JW |
1082 | /* We must allocate one more entry here, as we use NOTE_INSN_MAX as the |
1083 | default field for line number notes. */ | |
e1b793e7 | 1084 | static const char *const note_insn_name[NOTE_INSN_MAX + 1] = { |
9e995780 ZW |
1085 | #define DEF_INSN_NOTE(NAME) #NAME, |
1086 | #include "insn-notes.def" | |
1087 | #undef DEF_INSN_NOTE | |
1088 | }; | |
1089 | ||
1090 | #undef CONST_DOUBLE_FORMAT | |
1091 | #define GENERATOR_FILE | |
1092 | ||
36a5eadd GK |
1093 | /* Generate the contents of the rtx_next array. This really doesn't belong |
1094 | in gengtype at all, but it's needed for adjust_field_rtx_def. */ | |
1095 | ||
1096 | static void | |
3d7aafde | 1097 | gen_rtx_next (void) |
36a5eadd GK |
1098 | { |
1099 | int i; | |
1100 | for (i = 0; i < NUM_RTX_CODE; i++) | |
1101 | { | |
1102 | int k; | |
3d7aafde | 1103 | |
5ba6918e | 1104 | rtx_next_new[i] = -1; |
ed8921dc RS |
1105 | if (strncmp (rtx_format[i], "uu", 2) == 0) |
1106 | rtx_next_new[i] = 1; | |
36a5eadd | 1107 | else if (i == COND_EXEC || i == SET || i == EXPR_LIST || i == INSN_LIST) |
5ba6918e | 1108 | rtx_next_new[i] = 1; |
3d7aafde | 1109 | else |
36a5eadd GK |
1110 | for (k = strlen (rtx_format[i]) - 1; k >= 0; k--) |
1111 | if (rtx_format[i][k] == 'e' || rtx_format[i][k] == 'u') | |
5ba6918e | 1112 | rtx_next_new[i] = k; |
36a5eadd GK |
1113 | } |
1114 | } | |
1115 | ||
1116 | /* Write out the contents of the rtx_next array. */ | |
1117 | static void | |
3d7aafde | 1118 | write_rtx_next (void) |
36a5eadd GK |
1119 | { |
1120 | outf_p f = get_output_file_with_visibility (NULL); | |
1121 | int i; | |
b8698a0f | 1122 | if (!f) |
bd117bb6 | 1123 | return; |
3d7aafde | 1124 | |
36a5eadd | 1125 | oprintf (f, "\n/* Used to implement the RTX_NEXT macro. */\n"); |
6bc7bc14 | 1126 | oprintf (f, "EXPORTED_CONST unsigned char rtx_next[NUM_RTX_CODE] = {\n"); |
36a5eadd | 1127 | for (i = 0; i < NUM_RTX_CODE; i++) |
5ba6918e | 1128 | if (rtx_next_new[i] == -1) |
36a5eadd GK |
1129 | oprintf (f, " 0,\n"); |
1130 | else | |
3d7aafde | 1131 | oprintf (f, |
e1b793e7 | 1132 | " RTX_HDR_SIZE + %d * sizeof (rtunion),\n", rtx_next_new[i]); |
36a5eadd GK |
1133 | oprintf (f, "};\n"); |
1134 | } | |
1135 | ||
1136 | /* Handle `special("rtx_def")'. This is a special case for field | |
1137 | `fld' of struct rtx_def, which is an array of unions whose values | |
1138 | are based in a complex way on the type of RTL. */ | |
1139 | ||
1140 | static type_p | |
e18476eb | 1141 | adjust_field_rtx_def (type_p t, options_p ARG_UNUSED (opt)) |
36a5eadd GK |
1142 | { |
1143 | pair_p flds = NULL; | |
1144 | options_p nodot; | |
1145 | int i; | |
1146 | type_p rtx_tp, rtvec_tp, tree_tp, mem_attrs_tp, note_union_tp, scalar_tp; | |
a2c9fe42 | 1147 | type_p basic_block_tp, reg_attrs_tp, constant_tp, symbol_union_tp; |
36a5eadd | 1148 | |
e1de1560 | 1149 | if (t->kind != TYPE_UNION) |
36a5eadd | 1150 | { |
3d7aafde | 1151 | error_at_line (&lexer_line, |
e1de1560 | 1152 | "special `rtx_def' must be applied to a union"); |
36a5eadd GK |
1153 | return &string_type; |
1154 | } | |
3d7aafde | 1155 | |
412dc29d | 1156 | nodot = create_string_option (NULL, "dot", ""); |
36a5eadd | 1157 | |
0823efed DN |
1158 | rtx_tp = create_pointer (find_structure ("rtx_def", TYPE_STRUCT)); |
1159 | rtvec_tp = create_pointer (find_structure ("rtvec_def", TYPE_STRUCT)); | |
1160 | tree_tp = create_pointer (find_structure ("tree_node", TYPE_UNION)); | |
1161 | mem_attrs_tp = create_pointer (find_structure ("mem_attrs", TYPE_STRUCT)); | |
412dc29d | 1162 | reg_attrs_tp = |
0823efed | 1163 | create_pointer (find_structure ("reg_attrs", TYPE_STRUCT)); |
412dc29d | 1164 | basic_block_tp = |
0823efed | 1165 | create_pointer (find_structure ("basic_block_def", TYPE_STRUCT)); |
e1b793e7 | 1166 | constant_tp = |
0823efed | 1167 | create_pointer (find_structure ("constant_descriptor_rtx", TYPE_STRUCT)); |
e1b793e7 | 1168 | scalar_tp = &scalar_nonchar; /* rtunion int */ |
36a5eadd GK |
1169 | |
1170 | { | |
1171 | pair_p note_flds = NULL; | |
1172 | int c; | |
5ba6918e | 1173 | |
9e995780 | 1174 | for (c = 0; c <= NOTE_INSN_MAX; c++) |
36a5eadd | 1175 | { |
5ba6918e GK |
1176 | switch (c) |
1177 | { | |
5ba6918e | 1178 | case NOTE_INSN_MAX: |
1bcca2c5 | 1179 | case NOTE_INSN_DELETED_LABEL: |
5619e52c | 1180 | case NOTE_INSN_DELETED_DEBUG_LABEL: |
0f01f026 | 1181 | note_flds = create_field (note_flds, &string_type, "rt_str"); |
5ba6918e GK |
1182 | break; |
1183 | ||
1184 | case NOTE_INSN_BLOCK_BEG: | |
1185 | case NOTE_INSN_BLOCK_END: | |
0f01f026 | 1186 | note_flds = create_field (note_flds, tree_tp, "rt_tree"); |
5ba6918e | 1187 | break; |
3d7aafde | 1188 | |
014a1138 | 1189 | case NOTE_INSN_VAR_LOCATION: |
0f01f026 | 1190 | note_flds = create_field (note_flds, rtx_tp, "rt_rtx"); |
5ba6918e GK |
1191 | break; |
1192 | ||
1193 | default: | |
0f01f026 | 1194 | note_flds = create_field (note_flds, scalar_tp, "rt_int"); |
5ba6918e GK |
1195 | break; |
1196 | } | |
0f01f026 RS |
1197 | /* NOTE_INSN_MAX is used as the default field for line |
1198 | number notes. */ | |
1199 | if (c == NOTE_INSN_MAX) | |
412dc29d BS |
1200 | note_flds->opt = |
1201 | create_string_option (nodot, "default", ""); | |
0f01f026 | 1202 | else |
412dc29d BS |
1203 | note_flds->opt = |
1204 | create_string_option (nodot, "tag", note_insn_name[c]); | |
36a5eadd | 1205 | } |
0823efed | 1206 | note_union_tp = new_structure ("rtx_def_note_subunion", TYPE_UNION, |
18aa2b04 | 1207 | &lexer_line, note_flds, NULL, NULL); |
36a5eadd | 1208 | } |
c185c797 RS |
1209 | /* Create a type to represent the various forms of SYMBOL_REF_DATA. */ |
1210 | { | |
1211 | pair_p sym_flds; | |
c185c797 | 1212 | sym_flds = create_field (NULL, tree_tp, "rt_tree"); |
412dc29d | 1213 | sym_flds->opt = create_string_option (nodot, "default", ""); |
c185c797 | 1214 | sym_flds = create_field (sym_flds, constant_tp, "rt_constant"); |
412dc29d | 1215 | sym_flds->opt = create_string_option (nodot, "tag", "1"); |
0823efed | 1216 | symbol_union_tp = new_structure ("rtx_def_symbol_subunion", TYPE_UNION, |
18aa2b04 | 1217 | &lexer_line, sym_flds, NULL, NULL); |
c185c797 | 1218 | } |
36a5eadd GK |
1219 | for (i = 0; i < NUM_RTX_CODE; i++) |
1220 | { | |
36a5eadd GK |
1221 | pair_p subfields = NULL; |
1222 | size_t aindex, nmindex; | |
1223 | const char *sname; | |
0f01f026 | 1224 | type_p substruct; |
36a5eadd GK |
1225 | char *ftag; |
1226 | ||
1227 | for (aindex = 0; aindex < strlen (rtx_format[i]); aindex++) | |
1228 | { | |
36a5eadd GK |
1229 | type_p t; |
1230 | const char *subname; | |
1231 | ||
1232 | switch (rtx_format[i][aindex]) | |
1233 | { | |
1234 | case '*': | |
1235 | case 'i': | |
1236 | case 'n': | |
1237 | case 'w': | |
9fccb335 | 1238 | case 'r': |
36a5eadd | 1239 | t = scalar_tp; |
9ce88f5e | 1240 | subname = "rt_int"; |
36a5eadd GK |
1241 | break; |
1242 | ||
91914e56 RS |
1243 | case 'p': |
1244 | t = scalar_tp; | |
1245 | subname = "rt_subreg"; | |
1246 | break; | |
1247 | ||
36a5eadd GK |
1248 | case '0': |
1249 | if (i == MEM && aindex == 1) | |
9ce88f5e | 1250 | t = mem_attrs_tp, subname = "rt_mem"; |
ed8921dc | 1251 | else if (i == JUMP_INSN && aindex == 7) |
9ce88f5e | 1252 | t = rtx_tp, subname = "rt_rtx"; |
418e920f | 1253 | else if (i == CODE_LABEL && aindex == 4) |
ed8921dc RS |
1254 | t = scalar_tp, subname = "rt_int"; |
1255 | else if (i == CODE_LABEL && aindex == 3) | |
9ce88f5e | 1256 | t = rtx_tp, subname = "rt_rtx"; |
e1b793e7 | 1257 | else if (i == LABEL_REF && (aindex == 1 || aindex == 2)) |
9ce88f5e | 1258 | t = rtx_tp, subname = "rt_rtx"; |
ed8921dc | 1259 | else if (i == NOTE && aindex == 3) |
0f953f83 | 1260 | t = note_union_tp, subname = ""; |
ed8921dc | 1261 | else if (i == NOTE && aindex == 4) |
a38e7aa5 | 1262 | t = scalar_tp, subname = "rt_int"; |
ed8921dc | 1263 | else if (i == NOTE && aindex >= 6) |
9ce88f5e | 1264 | t = scalar_tp, subname = "rt_int"; |
36a5eadd | 1265 | else if (i == ADDR_DIFF_VEC && aindex == 4) |
9ce88f5e | 1266 | t = scalar_tp, subname = "rt_int"; |
36a5eadd | 1267 | else if (i == VALUE && aindex == 0) |
9ce88f5e | 1268 | t = scalar_tp, subname = "rt_int"; |
0ca5af51 AO |
1269 | else if (i == DEBUG_EXPR && aindex == 0) |
1270 | t = tree_tp, subname = "rt_tree"; | |
52859c77 | 1271 | else if (i == SYMBOL_REF && aindex == 1) |
c185c797 | 1272 | t = symbol_union_tp, subname = ""; |
ed8921dc | 1273 | else if (i == JUMP_TABLE_DATA && aindex >= 4) |
39718607 | 1274 | t = scalar_tp, subname = "rt_int"; |
ed8921dc | 1275 | else if (i == BARRIER && aindex >= 2) |
9ce88f5e | 1276 | t = scalar_tp, subname = "rt_int"; |
a58a8e4b JJ |
1277 | else if (i == ENTRY_VALUE && aindex == 0) |
1278 | t = rtx_tp, subname = "rt_rtx"; | |
36a5eadd GK |
1279 | else |
1280 | { | |
412dc29d BS |
1281 | error_at_line |
1282 | (&lexer_line, | |
1283 | "rtx type `%s' has `0' in position %lu, can't handle", | |
1284 | rtx_name[i], (unsigned long) aindex); | |
36a5eadd | 1285 | t = &string_type; |
9ce88f5e | 1286 | subname = "rt_int"; |
36a5eadd GK |
1287 | } |
1288 | break; | |
3d7aafde | 1289 | |
36a5eadd GK |
1290 | case 's': |
1291 | case 'S': | |
1292 | case 'T': | |
1293 | t = &string_type; | |
9ce88f5e | 1294 | subname = "rt_str"; |
36a5eadd GK |
1295 | break; |
1296 | ||
1297 | case 'e': | |
1298 | case 'u': | |
1299 | t = rtx_tp; | |
9ce88f5e | 1300 | subname = "rt_rtx"; |
36a5eadd GK |
1301 | break; |
1302 | ||
1303 | case 'E': | |
1304 | case 'V': | |
1305 | t = rtvec_tp; | |
9ce88f5e | 1306 | subname = "rt_rtvec"; |
36a5eadd GK |
1307 | break; |
1308 | ||
1309 | case 't': | |
1310 | t = tree_tp; | |
9ce88f5e | 1311 | subname = "rt_tree"; |
36a5eadd GK |
1312 | break; |
1313 | ||
36a5eadd GK |
1314 | case 'B': |
1315 | t = basic_block_tp; | |
9ce88f5e | 1316 | subname = "rt_bb"; |
36a5eadd GK |
1317 | break; |
1318 | ||
1319 | default: | |
412dc29d BS |
1320 | error_at_line |
1321 | (&lexer_line, | |
1322 | "rtx type `%s' has `%c' in position %lu, can't handle", | |
1323 | rtx_name[i], rtx_format[i][aindex], | |
1324 | (unsigned long) aindex); | |
36a5eadd | 1325 | t = &string_type; |
9ce88f5e | 1326 | subname = "rt_int"; |
36a5eadd GK |
1327 | break; |
1328 | } | |
1329 | ||
0f01f026 RS |
1330 | subfields = create_field (subfields, t, |
1331 | xasprintf (".fld[%lu].%s", | |
1332 | (unsigned long) aindex, | |
1333 | subname)); | |
1334 | subfields->opt = nodot; | |
36a5eadd | 1335 | if (t == note_union_tp) |
412dc29d BS |
1336 | subfields->opt = |
1337 | create_string_option (subfields->opt, "desc", | |
1338 | "NOTE_KIND (&%0)"); | |
c185c797 | 1339 | if (t == symbol_union_tp) |
412dc29d BS |
1340 | subfields->opt = |
1341 | create_string_option (subfields->opt, "desc", | |
1342 | "CONSTANT_POOL_ADDRESS_P (&%0)"); | |
36a5eadd GK |
1343 | } |
1344 | ||
9fccb335 RS |
1345 | if (i == REG) |
1346 | subfields = create_field (subfields, reg_attrs_tp, "reg.attrs"); | |
1347 | ||
aacd3885 RS |
1348 | if (i == SYMBOL_REF) |
1349 | { | |
412dc29d BS |
1350 | /* Add the "block_sym" field if SYMBOL_REF_HAS_BLOCK_INFO_P |
1351 | holds. */ | |
0823efed | 1352 | type_p field_tp = find_structure ("block_symbol", TYPE_STRUCT); |
3fa9c136 RS |
1353 | subfields |
1354 | = create_optional_field (subfields, field_tp, "block_sym", | |
1355 | "SYMBOL_REF_HAS_BLOCK_INFO_P (&%0)"); | |
aacd3885 RS |
1356 | } |
1357 | ||
36a5eadd | 1358 | sname = xasprintf ("rtx_def_%s", rtx_name[i]); |
0823efed | 1359 | substruct = new_structure (sname, TYPE_STRUCT, &lexer_line, subfields, |
18aa2b04 | 1360 | NULL, NULL); |
0f01f026 | 1361 | |
36a5eadd GK |
1362 | ftag = xstrdup (rtx_name[i]); |
1363 | for (nmindex = 0; nmindex < strlen (ftag); nmindex++) | |
1364 | ftag[nmindex] = TOUPPER (ftag[nmindex]); | |
0f01f026 | 1365 | flds = create_field (flds, substruct, ""); |
412dc29d | 1366 | flds->opt = create_string_option (nodot, "tag", ftag); |
36a5eadd | 1367 | } |
0823efed | 1368 | return new_structure ("rtx_def_subunion", TYPE_UNION, &lexer_line, flds, |
18aa2b04 | 1369 | nodot, NULL); |
36a5eadd GK |
1370 | } |
1371 | ||
1372 | /* Handle `special("tree_exp")'. This is a special case for | |
1373 | field `operands' of struct tree_exp, which although it claims to contain | |
3d7aafde | 1374 | pointers to trees, actually sometimes contains pointers to RTL too. |
36a5eadd GK |
1375 | Passed T, the old type of the field, and OPT its options. Returns |
1376 | a new type for the field. */ | |
1377 | ||
1378 | static type_p | |
3d7aafde | 1379 | adjust_field_tree_exp (type_p t, options_p opt ATTRIBUTE_UNUSED) |
36a5eadd GK |
1380 | { |
1381 | pair_p flds; | |
1382 | options_p nodot; | |
3d7aafde | 1383 | |
36a5eadd GK |
1384 | if (t->kind != TYPE_ARRAY) |
1385 | { | |
3d7aafde | 1386 | error_at_line (&lexer_line, |
36a5eadd GK |
1387 | "special `tree_exp' must be applied to an array"); |
1388 | return &string_type; | |
1389 | } | |
3d7aafde | 1390 | |
412dc29d | 1391 | nodot = create_string_option (NULL, "dot", ""); |
0f01f026 RS |
1392 | |
1393 | flds = create_field (NULL, t, ""); | |
412dc29d BS |
1394 | flds->opt = create_string_option (nodot, "length", |
1395 | "TREE_OPERAND_LENGTH ((tree) &%0)"); | |
1396 | flds->opt = create_string_option (flds->opt, "default", ""); | |
3d7aafde | 1397 | |
0823efed | 1398 | return new_structure ("tree_exp_subunion", TYPE_UNION, &lexer_line, flds, |
18aa2b04 | 1399 | nodot, NULL); |
36a5eadd GK |
1400 | } |
1401 | ||
9f313342 GK |
1402 | /* Perform any special processing on a type T, about to become the type |
1403 | of a field. Return the appropriate type for the field. | |
1404 | At present: | |
1405 | - Converts pointer-to-char, with no length parameter, to TYPE_STRING; | |
1406 | - Similarly for arrays of pointer-to-char; | |
1407 | - Converts structures for which a parameter is provided to | |
36a5eadd GK |
1408 | TYPE_PARAM_STRUCT; |
1409 | - Handles "special" options. | |
3d7aafde | 1410 | */ |
9f313342 | 1411 | |
e2500fed | 1412 | type_p |
3d7aafde | 1413 | adjust_field_type (type_p t, options_p opt) |
e2500fed GK |
1414 | { |
1415 | int length_p = 0; | |
1416 | const int pointer_p = t->kind == TYPE_POINTER; | |
3d7aafde | 1417 | |
e2500fed GK |
1418 | for (; opt; opt = opt->next) |
1419 | if (strcmp (opt->name, "length") == 0) | |
c0fd3497 LB |
1420 | { |
1421 | if (length_p) | |
1422 | error_at_line (&lexer_line, "duplicate `%s' option", opt->name); | |
1423 | if (t->u.p->kind == TYPE_SCALAR || t->u.p->kind == TYPE_STRING) | |
1424 | { | |
1425 | error_at_line (&lexer_line, | |
1426 | "option `%s' may not be applied to " | |
1427 | "arrays of atomic types", opt->name); | |
1428 | } | |
1429 | length_p = 1; | |
1430 | } | |
412dc29d BS |
1431 | else if (strcmp (opt->name, "special") == 0 |
1432 | && opt->kind == OPTION_STRING) | |
36a5eadd | 1433 | { |
412dc29d | 1434 | const char *special_name = opt->info.string; |
36a5eadd GK |
1435 | if (strcmp (special_name, "tree_exp") == 0) |
1436 | t = adjust_field_tree_exp (t, opt); | |
1437 | else if (strcmp (special_name, "rtx_def") == 0) | |
1438 | t = adjust_field_rtx_def (t, opt); | |
1439 | else | |
1440 | error_at_line (&lexer_line, "unknown special `%s'", special_name); | |
1441 | } | |
1442 | ||
e1b793e7 BS |
1443 | if (!length_p |
1444 | && pointer_p && t->u.p->kind == TYPE_SCALAR && t->u.p->u.scalar_is_char) | |
e2500fed GK |
1445 | return &string_type; |
1446 | if (t->kind == TYPE_ARRAY && t->u.a.p->kind == TYPE_POINTER | |
1447 | && t->u.a.p->u.p->kind == TYPE_SCALAR | |
95161faf | 1448 | && t->u.a.p->u.p->u.scalar_is_char) |
e2500fed GK |
1449 | return create_array (&string_type, t->u.a.len); |
1450 | ||
1451 | return t; | |
1452 | } | |
e2500fed | 1453 | \f |
e1b793e7 | 1454 | |
63f5d5b8 | 1455 | static void set_gc_used_type (type_p, enum gc_used_enum, bool = false); |
3d7aafde | 1456 | static void set_gc_used (pair_p); |
e2500fed | 1457 | |
9f313342 GK |
1458 | /* Handle OPT for set_gc_used_type. */ |
1459 | ||
e2500fed | 1460 | static void |
3d7aafde | 1461 | process_gc_options (options_p opt, enum gc_used_enum level, int *maybe_undef, |
63f5d5b8 | 1462 | int *length, int *skip, type_p *nested_ptr) |
e2500fed GK |
1463 | { |
1464 | options_p o; | |
1465 | for (o = opt; o; o = o->next) | |
412dc29d BS |
1466 | if (strcmp (o->name, "ptr_alias") == 0 && level == GC_POINTED_TO |
1467 | && o->kind == OPTION_TYPE) | |
1468 | set_gc_used_type (o->info.type, | |
63f5d5b8 | 1469 | GC_POINTED_TO); |
e2500fed GK |
1470 | else if (strcmp (o->name, "maybe_undef") == 0) |
1471 | *maybe_undef = 1; | |
36a5eadd GK |
1472 | else if (strcmp (o->name, "length") == 0) |
1473 | *length = 1; | |
5932ca9d ZW |
1474 | else if (strcmp (o->name, "skip") == 0) |
1475 | *skip = 1; | |
412dc29d BS |
1476 | else if (strcmp (o->name, "nested_ptr") == 0 |
1477 | && o->kind == OPTION_NESTED) | |
1478 | *nested_ptr = ((const struct nested_ptr_data *) o->info.nested)->type; | |
e2500fed GK |
1479 | } |
1480 | ||
9f313342 | 1481 | |
9771b263 DN |
1482 | /* Set the gc_used field of T to LEVEL, and handle the types it references. |
1483 | ||
1484 | If ALLOWED_UNDEFINED_TYPES is true, types of kind TYPE_UNDEFINED | |
1485 | are set to GC_UNUSED. Otherwise, an error is emitted for | |
1486 | TYPE_UNDEFINED types. This is used to support user-defined | |
1487 | template types with non-type arguments. | |
1488 | ||
1489 | For instance, when we parse a template type with enum arguments | |
1490 | (e.g. MyType<AnotherType, EnumValue>), the parser created two | |
1491 | artificial fields for 'MyType', one for 'AnotherType', the other | |
1492 | one for 'EnumValue'. | |
1493 | ||
1494 | At the time that we parse this type we don't know that 'EnumValue' | |
1495 | is really an enum value, so the parser creates a TYPE_UNDEFINED | |
1496 | type for it. Since 'EnumValue' is never resolved to a known | |
1497 | structure, it will stay with TYPE_UNDEFINED. | |
1498 | ||
1499 | Since 'MyType' is a TYPE_USER_STRUCT, we can simply ignore | |
1500 | 'EnumValue'. Generating marking code for it would cause | |
1501 | compilation failures since the marking routines assumes that | |
1502 | 'EnumValue' is a type. */ | |
1503 | ||
e2500fed | 1504 | static void |
63f5d5b8 | 1505 | set_gc_used_type (type_p t, enum gc_used_enum level, |
9771b263 | 1506 | bool allow_undefined_types) |
e2500fed GK |
1507 | { |
1508 | if (t->gc_used >= level) | |
1509 | return; | |
3d7aafde | 1510 | |
e2500fed GK |
1511 | t->gc_used = level; |
1512 | ||
1513 | switch (t->kind) | |
1514 | { | |
1515 | case TYPE_STRUCT: | |
1516 | case TYPE_UNION: | |
0823efed | 1517 | case TYPE_USER_STRUCT: |
e2500fed GK |
1518 | { |
1519 | pair_p f; | |
1520 | int dummy; | |
d8044160 | 1521 | type_p dummy2; |
9771b263 | 1522 | bool allow_undefined_field_types = (t->kind == TYPE_USER_STRUCT); |
e2500fed | 1523 | |
63f5d5b8 | 1524 | process_gc_options (t->u.s.opt, level, &dummy, &dummy, &dummy, |
d8044160 | 1525 | &dummy2); |
e2500fed | 1526 | |
52a7fb3c | 1527 | if (t->u.s.base_class) |
63f5d5b8 | 1528 | set_gc_used_type (t->u.s.base_class, level, allow_undefined_types); |
32fe5271 DM |
1529 | /* Anything pointing to a base class might actually be pointing |
1530 | to a subclass. */ | |
1531 | for (type_p subclass = t->u.s.first_subclass; subclass; | |
1532 | subclass = subclass->u.s.next_sibling_class) | |
63f5d5b8 | 1533 | set_gc_used_type (subclass, level, allow_undefined_types); |
52a7fb3c DM |
1534 | |
1535 | FOR_ALL_INHERITED_FIELDS(t, f) | |
e2500fed GK |
1536 | { |
1537 | int maybe_undef = 0; | |
36a5eadd | 1538 | int length = 0; |
5932ca9d | 1539 | int skip = 0; |
d8044160 | 1540 | type_p nested_ptr = NULL; |
63f5d5b8 TS |
1541 | process_gc_options (f->opt, level, &maybe_undef, &length, &skip, |
1542 | &nested_ptr); | |
3d7aafde | 1543 | |
d8044160 | 1544 | if (nested_ptr && f->type->kind == TYPE_POINTER) |
63f5d5b8 | 1545 | set_gc_used_type (nested_ptr, GC_POINTED_TO); |
d8044160 | 1546 | else if (length && f->type->kind == TYPE_POINTER) |
63f5d5b8 | 1547 | set_gc_used_type (f->type->u.p, GC_USED); |
36a5eadd | 1548 | else if (maybe_undef && f->type->kind == TYPE_POINTER) |
63f5d5b8 | 1549 | set_gc_used_type (f->type->u.p, GC_MAYBE_POINTED_TO); |
5932ca9d | 1550 | else if (skip) |
e1b793e7 | 1551 | ; /* target type is not used through this field */ |
e2500fed | 1552 | else |
63f5d5b8 | 1553 | set_gc_used_type (f->type, GC_USED, allow_undefined_field_types); |
e2500fed GK |
1554 | } |
1555 | break; | |
1556 | } | |
1557 | ||
9771b263 DN |
1558 | case TYPE_UNDEFINED: |
1559 | if (level > GC_UNUSED) | |
1560 | { | |
1561 | if (!allow_undefined_types) | |
1562 | error_at_line (&t->u.s.line, "undefined type `%s'", t->u.s.tag); | |
1563 | t->gc_used = GC_UNUSED; | |
1564 | } | |
1565 | break; | |
1566 | ||
e2500fed | 1567 | case TYPE_POINTER: |
63f5d5b8 | 1568 | set_gc_used_type (t->u.p, GC_POINTED_TO); |
e2500fed GK |
1569 | break; |
1570 | ||
1571 | case TYPE_ARRAY: | |
63f5d5b8 | 1572 | set_gc_used_type (t->u.a.p, GC_USED); |
e2500fed | 1573 | break; |
3d7aafde | 1574 | |
e2500fed GK |
1575 | case TYPE_LANG_STRUCT: |
1576 | for (t = t->u.s.lang_struct; t; t = t->next) | |
63f5d5b8 | 1577 | set_gc_used_type (t, level); |
e2500fed GK |
1578 | break; |
1579 | ||
1580 | default: | |
1581 | break; | |
1582 | } | |
1583 | } | |
1584 | ||
36a5eadd | 1585 | /* Set the gc_used fields of all the types pointed to by VARIABLES. */ |
9f313342 | 1586 | |
e2500fed | 1587 | static void |
3d7aafde | 1588 | set_gc_used (pair_p variables) |
e2500fed | 1589 | { |
1d32bbcd | 1590 | int nbvars = 0; |
e2500fed GK |
1591 | pair_p p; |
1592 | for (p = variables; p; p = p->next) | |
1d32bbcd | 1593 | { |
63f5d5b8 | 1594 | set_gc_used_type (p->type, GC_USED); |
1d32bbcd BS |
1595 | nbvars++; |
1596 | }; | |
1597 | if (verbosity_level >= 2) | |
1598 | printf ("%s used %d GTY-ed variables\n", progname, nbvars); | |
e2500fed GK |
1599 | } |
1600 | \f | |
1601 | /* File mapping routines. For each input file, there is one output .c file | |
1602 | (but some output files have many input files), and there is one .h file | |
1603 | for the whole build. */ | |
1604 | ||
065ae611 | 1605 | /* Output file handling. */ |
e2500fed | 1606 | |
e03856fe GK |
1607 | /* Create and return an outf_p for a new file for NAME, to be called |
1608 | ONAME. */ | |
9f313342 | 1609 | |
e03856fe | 1610 | static outf_p |
3d7aafde | 1611 | create_file (const char *name, const char *oname) |
e2500fed GK |
1612 | { |
1613 | static const char *const hdr[] = { | |
85ec4feb | 1614 | " Copyright (C) 2004-2018 Free Software Foundation, Inc.\n", |
e2500fed GK |
1615 | "\n", |
1616 | "This file is part of GCC.\n", | |
1617 | "\n", | |
1618 | "GCC is free software; you can redistribute it and/or modify it under\n", | |
1619 | "the terms of the GNU General Public License as published by the Free\n", | |
9dcd6f09 | 1620 | "Software Foundation; either version 3, or (at your option) any later\n", |
e2500fed GK |
1621 | "version.\n", |
1622 | "\n", | |
1623 | "GCC is distributed in the hope that it will be useful, but WITHOUT ANY\n", | |
1624 | "WARRANTY; without even the implied warranty of MERCHANTABILITY or\n", | |
1625 | "FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License\n", | |
1626 | "for more details.\n", | |
1627 | "\n", | |
1628 | "You should have received a copy of the GNU General Public License\n", | |
9dcd6f09 NC |
1629 | "along with GCC; see the file COPYING3. If not see\n", |
1630 | "<http://www.gnu.org/licenses/>. */\n", | |
e2500fed GK |
1631 | "\n", |
1632 | "/* This file is machine generated. Do not edit. */\n" | |
1633 | }; | |
e03856fe | 1634 | outf_p f; |
e2500fed | 1635 | size_t i; |
3d7aafde | 1636 | |
bd117bb6 BS |
1637 | gcc_assert (name != NULL); |
1638 | gcc_assert (oname != NULL); | |
5d038c4c | 1639 | f = XCNEW (struct outf); |
e03856fe GK |
1640 | f->next = output_files; |
1641 | f->name = oname; | |
1642 | output_files = f; | |
1643 | ||
1644 | oprintf (f, "/* Type information for %s.\n", name); | |
62c71f4b | 1645 | for (i = 0; i < ARRAY_SIZE (hdr); i++) |
e03856fe | 1646 | oprintf (f, "%s", hdr[i]); |
e2500fed GK |
1647 | return f; |
1648 | } | |
1649 | ||
b8698a0f | 1650 | /* Print, like fprintf, to O. |
311e3ff0 ZW |
1651 | N.B. You might think this could be implemented more efficiently |
1652 | with vsnprintf(). Unfortunately, there are C libraries that | |
1653 | provide that function but without the C99 semantics for its return | |
1654 | value, making it impossible to know how much space is required. */ | |
3d7aafde | 1655 | void |
e34d07f2 | 1656 | oprintf (outf_p o, const char *format, ...) |
e03856fe | 1657 | { |
311e3ff0 | 1658 | char *s; |
e03856fe | 1659 | size_t slength; |
311e3ff0 | 1660 | va_list ap; |
3d7aafde | 1661 | |
bd117bb6 BS |
1662 | /* In plugin mode, the O could be a NULL pointer, so avoid crashing |
1663 | in that case. */ | |
b8698a0f | 1664 | if (!o) |
bd117bb6 BS |
1665 | return; |
1666 | ||
311e3ff0 ZW |
1667 | va_start (ap, format); |
1668 | slength = vasprintf (&s, format, ap); | |
e1b793e7 | 1669 | if (s == NULL || (int) slength < 0) |
311e3ff0 ZW |
1670 | fatal ("out of memory"); |
1671 | va_end (ap); | |
e03856fe | 1672 | |
311e3ff0 | 1673 | if (o->bufused + slength > o->buflength) |
e03856fe GK |
1674 | { |
1675 | size_t new_len = o->buflength; | |
1676 | if (new_len == 0) | |
1677 | new_len = 1024; | |
e1b793e7 BS |
1678 | do |
1679 | { | |
1680 | new_len *= 2; | |
1681 | } | |
1682 | while (o->bufused + slength >= new_len); | |
cca8ead2 | 1683 | o->buf = XRESIZEVEC (char, o->buf, new_len); |
e03856fe GK |
1684 | o->buflength = new_len; |
1685 | } | |
311e3ff0 | 1686 | memcpy (o->buf + o->bufused, s, slength); |
e03856fe | 1687 | o->bufused += slength; |
311e3ff0 | 1688 | free (s); |
e03856fe GK |
1689 | } |
1690 | ||
9f313342 GK |
1691 | /* Open the global header file and the language-specific header files. */ |
1692 | ||
e2500fed | 1693 | static void |
3d7aafde | 1694 | open_base_files (void) |
e2500fed GK |
1695 | { |
1696 | size_t i; | |
3d7aafde | 1697 | |
bd117bb6 BS |
1698 | if (nb_plugin_files > 0 && plugin_files) |
1699 | return; | |
1700 | ||
e03856fe | 1701 | header_file = create_file ("GCC", "gtype-desc.h"); |
e2500fed | 1702 | |
11a67599 ZW |
1703 | base_files = XNEWVEC (outf_p, num_lang_dirs); |
1704 | ||
1705 | for (i = 0; i < num_lang_dirs; i++) | |
3d7aafde | 1706 | base_files[i] = create_file (lang_dir_names[i], |
8ac9d31f | 1707 | xasprintf ("gtype-%s.h", lang_dir_names[i])); |
e03856fe GK |
1708 | |
1709 | /* gtype-desc.c is a little special, so we create it here. */ | |
1710 | { | |
1711 | /* The order of files here matters very much. */ | |
e1b793e7 | 1712 | static const char *const ifiles[] = { |
1a817418 ML |
1713 | "config.h", "system.h", "coretypes.h", |
1714 | "backend.h", "predict.h", "tree.h", | |
c7131fb2 AM |
1715 | "rtl.h", "gimple.h", "fold-const.h", "insn-codes.h", "splay-tree.h", |
1716 | "alias.h", "insn-config.h", "flags.h", "expmed.h", "dojump.h", | |
5e9d6aa4 | 1717 | "explow.h", "calls.h", "memmodel.h", "emit-rtl.h", "varasm.h", |
4d0cdd0c TP |
1718 | "stmt.h", "expr.h", "alloc-pool.h", "cselib.h", "insn-addr.h", |
1719 | "optabs.h", "libfuncs.h", "debug.h", "internal-fn.h", "gimple-fold.h", | |
1720 | "tree-eh.h", "gimple-iterator.h", "gimple-ssa.h", "tree-cfg.h", | |
1721 | "tree-vrp.h", "tree-phinodes.h", "ssa-iterators.h", "stringpool.h", | |
1722 | "tree-ssanames.h", "tree-ssa-loop.h", "tree-ssa-loop-ivopts.h", | |
1723 | "tree-ssa-loop-manip.h", "tree-ssa-loop-niter.h", "tree-into-ssa.h", | |
abcd1775 | 1724 | "tree-dfa.h", "tree-ssa.h", "reload.h", "cpplib.h", "tree-chrec.h", |
c582198b | 1725 | "except.h", "output.h", "cfgloop.h", "target.h", "lto-streamer.h", |
4008290f | 1726 | "target-globals.h", "ipa-ref.h", "cgraph.h", "symbol-summary.h", |
27d020cf | 1727 | "ipa-prop.h", "ipa-fnsummary.h", "dwarf2out.h", "omp-offload.h", NULL |
e03856fe GK |
1728 | }; |
1729 | const char *const *ifp; | |
1730 | outf_p gtype_desc_c; | |
3d7aafde | 1731 | |
e03856fe GK |
1732 | gtype_desc_c = create_file ("GCC", "gtype-desc.c"); |
1733 | for (ifp = ifiles; *ifp; ifp++) | |
1734 | oprintf (gtype_desc_c, "#include \"%s\"\n", *ifp); | |
5576d6f2 TT |
1735 | |
1736 | /* Make sure we handle "cfun" specially. */ | |
1737 | oprintf (gtype_desc_c, "\n/* See definition in function.h. */\n"); | |
1738 | oprintf (gtype_desc_c, "#undef cfun\n"); | |
c74f54a0 DM |
1739 | |
1740 | oprintf (gtype_desc_c, | |
1741 | "\n" | |
1742 | "/* Types with a \"gcc::\" namespace have it stripped\n" | |
1743 | " during gengtype parsing. Provide a \"using\" directive\n" | |
1744 | " to ensure that the fully-qualified types are found. */\n" | |
1745 | "using namespace gcc;\n"); | |
e03856fe | 1746 | } |
e2500fed GK |
1747 | } |
1748 | ||
14c4815e BS |
1749 | /* For INPF an input file, return the real basename of INPF, with all |
1750 | the directory components skipped. */ | |
8de8de02 OH |
1751 | |
1752 | static const char * | |
14c4815e | 1753 | get_file_realbasename (const input_file *inpf) |
8de8de02 | 1754 | { |
ba78087b | 1755 | return lbasename (get_input_file_name (inpf)); |
8de8de02 OH |
1756 | } |
1757 | ||
14c4815e BS |
1758 | /* For INPF a filename, return the relative path to INPF from |
1759 | $(srcdir) if the latter is a prefix in INPF, NULL otherwise. */ | |
8de8de02 | 1760 | |
14c4815e BS |
1761 | const char * |
1762 | get_file_srcdir_relative_path (const input_file *inpf) | |
8de8de02 | 1763 | { |
14c4815e | 1764 | const char *f = get_input_file_name (inpf); |
8de8de02 OH |
1765 | if (strlen (f) > srcdir_len |
1766 | && IS_DIR_SEPARATOR (f[srcdir_len]) | |
14c4815e | 1767 | && strncmp (f, srcdir, srcdir_len) == 0) |
8de8de02 OH |
1768 | return f + srcdir_len + 1; |
1769 | else | |
1770 | return NULL; | |
1771 | } | |
1772 | ||
14c4815e BS |
1773 | /* For INPF an input_file, return the relative path to INPF from |
1774 | $(srcdir) if the latter is a prefix in INPF, or the real basename | |
1775 | of INPF otherwise. */ | |
9f313342 | 1776 | |
e2500fed | 1777 | static const char * |
14c4815e | 1778 | get_file_basename (const input_file *inpf) |
e2500fed | 1779 | { |
14c4815e | 1780 | const char *srcdir_path = get_file_srcdir_relative_path (inpf); |
3d7aafde | 1781 | |
14c4815e | 1782 | return (srcdir_path != NULL) ? srcdir_path : get_file_realbasename (inpf); |
8de8de02 | 1783 | } |
3d7aafde | 1784 | |
8de8de02 OH |
1785 | /* For F a filename, return the lang_dir_names relative index of the language |
1786 | directory that is a prefix in F, if any, -1 otherwise. */ | |
3d7aafde | 1787 | |
8de8de02 OH |
1788 | static int |
1789 | get_prefix_langdir_index (const char *f) | |
1790 | { | |
1791 | size_t f_len = strlen (f); | |
1792 | size_t lang_index; | |
3d7aafde | 1793 | |
8de8de02 | 1794 | for (lang_index = 0; lang_index < num_lang_dirs; lang_index++) |
8ac9d31f | 1795 | { |
e1b793e7 | 1796 | const char *langdir = lang_dir_names[lang_index]; |
8de8de02 | 1797 | size_t langdir_len = strlen (langdir); |
b8698a0f | 1798 | |
8de8de02 OH |
1799 | if (f_len > langdir_len |
1800 | && IS_DIR_SEPARATOR (f[langdir_len]) | |
1801 | && memcmp (f, langdir, langdir_len) == 0) | |
1802 | return lang_index; | |
8ac9d31f | 1803 | } |
3d7aafde | 1804 | |
8de8de02 OH |
1805 | return -1; |
1806 | } | |
1807 | ||
14c4815e BS |
1808 | /* For INPF an input file, return the name of language directory where |
1809 | F is located, if any, NULL otherwise. */ | |
8de8de02 OH |
1810 | |
1811 | static const char * | |
14c4815e | 1812 | get_file_langdir (const input_file *inpf) |
8de8de02 | 1813 | { |
14c4815e BS |
1814 | /* Get the relative path to INPF from $(srcdir) and find the |
1815 | language by comparing the prefix with language directory names. | |
1816 | If INPF is not even srcdir relative, no point in looking | |
1817 | further. */ | |
8de8de02 OH |
1818 | |
1819 | int lang_index; | |
14c4815e | 1820 | const char *srcdir_relative_path = get_file_srcdir_relative_path (inpf); |
e1b793e7 | 1821 | const char *r; |
8de8de02 OH |
1822 | |
1823 | if (!srcdir_relative_path) | |
1824 | return NULL; | |
1825 | ||
1826 | lang_index = get_prefix_langdir_index (srcdir_relative_path); | |
e1b793e7 | 1827 | if (lang_index < 0 && strncmp (srcdir_relative_path, "c-family", 8) == 0) |
39dabefd SB |
1828 | r = "c-family"; |
1829 | else if (lang_index >= 0) | |
e1b793e7 | 1830 | r = lang_dir_names[lang_index]; |
39dabefd SB |
1831 | else |
1832 | r = NULL; | |
8de8de02 | 1833 | |
39dabefd | 1834 | return r; |
8de8de02 OH |
1835 | } |
1836 | ||
14c4815e | 1837 | /* The gt- output file name for INPF. */ |
8de8de02 OH |
1838 | |
1839 | static const char * | |
14c4815e | 1840 | get_file_gtfilename (const input_file *inpf) |
8de8de02 OH |
1841 | { |
1842 | /* Cook up an initial version of the gt- file name from the file real | |
1843 | basename and the language name, if any. */ | |
1844 | ||
14c4815e BS |
1845 | const char *basename = get_file_realbasename (inpf); |
1846 | const char *langdir = get_file_langdir (inpf); | |
b8698a0f | 1847 | |
e1b793e7 | 1848 | char *result = |
8de8de02 OH |
1849 | (langdir ? xasprintf ("gt-%s-%s", langdir, basename) |
1850 | : xasprintf ("gt-%s", basename)); | |
1851 | ||
1852 | /* Then replace all non alphanumerics characters by '-' and change the | |
0277fabf | 1853 | extension to ".h". We expect the input filename extension was at least |
8de8de02 OH |
1854 | one character long. */ |
1855 | ||
1856 | char *s = result; | |
1857 | ||
1858 | for (; *s != '.'; s++) | |
e1b793e7 | 1859 | if (!ISALNUM (*s) && *s != '-') |
8de8de02 OH |
1860 | *s = '-'; |
1861 | ||
1862 | memcpy (s, ".h", sizeof (".h")); | |
1863 | ||
1864 | return result; | |
e2500fed GK |
1865 | } |
1866 | ||
81ae7e14 JS |
1867 | /* Each input_file has its associated output file outf_p. The |
1868 | association is computed by the function | |
1869 | get_output_file_with_visibility. The associated file is cached | |
1870 | inside input_file in its inpoutf field, so is really computed only | |
1871 | once. Associated output file paths (i.e. output_name-s) are | |
1872 | computed by a rule based regexp machinery, using the files_rules | |
1873 | array of struct file_rule_st. A for_name is also computed, giving | |
1874 | the source file name for which the output_file is generated; it is | |
1875 | often the last component of the input_file path. */ | |
1876 | ||
1877 | ||
1878 | /* | |
1879 | Regexpr machinery to compute the output_name and for_name-s of each | |
1880 | input_file. We have a sequence of file rules which gives the POSIX | |
1881 | extended regular expression to match an input file path, and two | |
1882 | transformed strings for the corresponding output_name and the | |
1883 | corresponding for_name. The transformed string contain dollars: $0 | |
1884 | is replaced by the entire match, $1 is replaced by the substring | |
1885 | matching the first parenthesis in the regexp, etc. And $$ is replaced | |
1886 | by a single verbatim dollar. The rule order is important. The | |
1887 | general case is last, and the particular cases should come before. | |
1888 | An action routine can, when needed, update the out_name & for_name | |
1889 | and/or return the appropriate output file. It is invoked only when a | |
1890 | rule is triggered. When a rule is triggered, the output_name and | |
1891 | for_name are computed using their transform string in while $$, $0, | |
1892 | $1, ... are suitably replaced. If there is an action, it is called. | |
1893 | In some few cases, the action can directly return the outf_p, but | |
1894 | usually it just updates the output_name and for_name so should free | |
1895 | them before replacing them. The get_output_file_with_visibility | |
1896 | function creates an outf_p only once per each output_name, so it | |
1897 | scans the output_files list for previously seen output file names. | |
1898 | */ | |
1899 | ||
1900 | /* Signature of actions in file rules. */ | |
1901 | typedef outf_p (frul_actionrout_t) (input_file*, char**, char**); | |
1902 | ||
1903 | ||
1904 | struct file_rule_st { | |
1905 | const char* frul_srcexpr; /* Source string for regexp. */ | |
1906 | int frul_rflags; /* Flags passed to regcomp, usually | |
1907 | * REG_EXTENDED. */ | |
1908 | regex_t* frul_re; /* Compiled regular expression | |
1909 | obtained by regcomp. */ | |
1910 | const char* frul_tr_out; /* Transformation string for making | |
1911 | * the output_name, with $1 ... $9 for | |
1912 | * subpatterns and $0 for the whole | |
1913 | * matched filename. */ | |
1914 | const char* frul_tr_for; /* Tranformation string for making the | |
1915 | for_name. */ | |
1916 | frul_actionrout_t* frul_action; /* The action, if non null, is | |
1917 | * called once the rule matches, on | |
1918 | * the transformed out_name & | |
1919 | * for_name. It could change them | |
1920 | * and/or give the output file. */ | |
1921 | }; | |
1922 | ||
1923 | /* File rule action handling *.h files. */ | |
1924 | static outf_p header_dot_h_frul (input_file*, char**, char**); | |
1925 | ||
1926 | /* File rule action handling *.c files. */ | |
1927 | static outf_p source_dot_c_frul (input_file*, char**, char**); | |
1928 | ||
1929 | #define NULL_REGEX (regex_t*)0 | |
1930 | ||
1931 | /* The prefix in our regexp-s matching the directory. */ | |
1932 | #define DIR_PREFIX_REGEX "^(([^/]*/)*)" | |
1933 | ||
1934 | #define NULL_FRULACT (frul_actionrout_t*)0 | |
1935 | ||
1936 | /* The array of our rules governing file name generation. Rules order | |
1937 | matters, so change with extreme care! */ | |
1938 | ||
1939 | struct file_rule_st files_rules[] = { | |
7e84ad0b NP |
1940 | /* The general rule assumes that files in subdirectories belong to a |
1941 | particular front-end, and files not in subdirectories are shared. | |
1942 | The following rules deal with exceptions - files that are in | |
1943 | subdirectories and yet are shared, and files that are top-level, | |
1944 | but are not shared. */ | |
1945 | ||
81ae7e14 JS |
1946 | /* the c-family/ source directory is special. */ |
1947 | { DIR_PREFIX_REGEX "c-family/([[:alnum:]_-]*)\\.c$", | |
1948 | REG_EXTENDED, NULL_REGEX, | |
1949 | "gt-c-family-$3.h", "c-family/$3.c", NULL_FRULACT}, | |
1950 | ||
1951 | { DIR_PREFIX_REGEX "c-family/([[:alnum:]_-]*)\\.h$", | |
1952 | REG_EXTENDED, NULL_REGEX, | |
1953 | "gt-c-family-$3.h", "c-family/$3.h", NULL_FRULACT}, | |
1954 | ||
d4a10d0a SB |
1955 | /* Both c-lang.h & c-tree.h gives gt-c-c-decl.h for c-decl.c ! */ |
1956 | { DIR_PREFIX_REGEX "c/c-lang\\.h$", | |
1957 | REG_EXTENDED, NULL_REGEX, "gt-c-c-decl.h", "c/c-decl.c", NULL_FRULACT}, | |
81ae7e14 | 1958 | |
d4a10d0a SB |
1959 | { DIR_PREFIX_REGEX "c/c-tree\\.h$", |
1960 | REG_EXTENDED, NULL_REGEX, "gt-c-c-decl.h", "c/c-decl.c", NULL_FRULACT}, | |
81ae7e14 JS |
1961 | |
1962 | /* cp/cp-tree.h gives gt-cp-tree.h for cp/tree.c ! */ | |
1963 | { DIR_PREFIX_REGEX "cp/cp-tree\\.h$", | |
1964 | REG_EXTENDED, NULL_REGEX, | |
1965 | "gt-cp-tree.h", "cp/tree.c", NULL_FRULACT }, | |
1966 | ||
1967 | /* cp/decl.h & cp/decl.c gives gt-cp-decl.h for cp/decl.c ! */ | |
1968 | { DIR_PREFIX_REGEX "cp/decl\\.[ch]$", | |
1969 | REG_EXTENDED, NULL_REGEX, | |
1970 | "gt-cp-decl.h", "cp/decl.c", NULL_FRULACT }, | |
1971 | ||
1972 | /* cp/name-lookup.h gives gt-cp-name-lookup.h for cp/name-lookup.c ! */ | |
1973 | { DIR_PREFIX_REGEX "cp/name-lookup\\.h$", | |
1974 | REG_EXTENDED, NULL_REGEX, | |
1975 | "gt-cp-name-lookup.h", "cp/name-lookup.c", NULL_FRULACT }, | |
1976 | ||
7e84ad0b NP |
1977 | /* cp/parser.h gives gt-cp-parser.h for cp/parser.c ! */ |
1978 | { DIR_PREFIX_REGEX "cp/parser\\.h$", | |
1979 | REG_EXTENDED, NULL_REGEX, | |
1980 | "gt-cp-parser.h", "cp/parser.c", NULL_FRULACT }, | |
1981 | ||
1982 | /* objc/objc-act.h gives gt-objc-objc-act.h for objc/objc-act.c ! */ | |
81ae7e14 JS |
1983 | { DIR_PREFIX_REGEX "objc/objc-act\\.h$", |
1984 | REG_EXTENDED, NULL_REGEX, | |
1985 | "gt-objc-objc-act.h", "objc/objc-act.c", NULL_FRULACT }, | |
1986 | ||
3cc2dd4b NP |
1987 | /* objc/objc-map.h gives gt-objc-objc-map.h for objc/objc-map.c ! */ |
1988 | { DIR_PREFIX_REGEX "objc/objc-map\\.h$", | |
1989 | REG_EXTENDED, NULL_REGEX, | |
1990 | "gt-objc-objc-map.h", "objc/objc-map.c", NULL_FRULACT }, | |
1991 | ||
0078f462 BS |
1992 | /* General cases. For header *.h and source *.c or *.cc files, we |
1993 | * need special actions to handle the language. */ | |
81ae7e14 JS |
1994 | |
1995 | /* Source *.c files are using get_file_gtfilename to compute their | |
1996 | output_name and get_file_basename to compute their for_name | |
073a8998 | 1997 | through the source_dot_c_frul action. */ |
81ae7e14 JS |
1998 | { DIR_PREFIX_REGEX "([[:alnum:]_-]*)\\.c$", |
1999 | REG_EXTENDED, NULL_REGEX, "gt-$3.h", "$3.c", source_dot_c_frul}, | |
0078f462 BS |
2000 | |
2001 | /* Source *.cc files are using get_file_gtfilename to compute their | |
2002 | output_name and get_file_basename to compute their for_name | |
2003 | through the source_dot_c_frul action. */ | |
2004 | { DIR_PREFIX_REGEX "([[:alnum:]_-]*)\\.cc$", | |
2005 | REG_EXTENDED, NULL_REGEX, "gt-$3.h", "$3.cc", source_dot_c_frul}, | |
2006 | ||
81ae7e14 JS |
2007 | /* Common header files get "gtype-desc.c" as their output_name, |
2008 | * while language specific header files are handled specially. So | |
2009 | * we need the header_dot_h_frul action. */ | |
2010 | { DIR_PREFIX_REGEX "([[:alnum:]_-]*)\\.h$", | |
2011 | REG_EXTENDED, NULL_REGEX, "gt-$3.h", "$3.h", header_dot_h_frul}, | |
2012 | ||
2013 | { DIR_PREFIX_REGEX "([[:alnum:]_-]*)\\.in$", | |
2014 | REG_EXTENDED, NULL_REGEX, "gt-$3.h", "$3.in", NULL_FRULACT}, | |
2015 | ||
2016 | /* Mandatory null last entry signaling end of rules. */ | |
2017 | {NULL, 0, NULL_REGEX, NULL, NULL, NULL_FRULACT} | |
2018 | }; | |
2019 | ||
2020 | /* Special file rules action for handling *.h header files. It gives | |
2021 | "gtype-desc.c" for common headers and corresponding output | |
2022 | files for language-specific header files. */ | |
2023 | static outf_p | |
87e0555a L |
2024 | header_dot_h_frul (input_file* inpf, char**poutname, |
2025 | char**pforname ATTRIBUTE_UNUSED) | |
81ae7e14 JS |
2026 | { |
2027 | const char *basename = 0; | |
2028 | int lang_index = 0; | |
81ae7e14 | 2029 | DBGPRINTF ("inpf %p inpname %s outname %s forname %s", |
fd1e183c BS |
2030 | (void*) inpf, get_input_file_name (inpf), |
2031 | *poutname, *pforname); | |
81ae7e14 JS |
2032 | basename = get_file_basename (inpf); |
2033 | lang_index = get_prefix_langdir_index (basename); | |
2034 | DBGPRINTF ("basename %s lang_index %d", basename, lang_index); | |
2035 | ||
2036 | if (lang_index >= 0) | |
2037 | { | |
2038 | /* The header is language specific. Given output_name & | |
2039 | for_name remains unchanged. The base_files array gives the | |
2040 | outf_p. */ | |
2041 | DBGPRINTF ("header_dot_h found language specific @ %p '%s'", | |
2042 | (void*) base_files[lang_index], | |
2043 | (base_files[lang_index])->name); | |
2044 | return base_files[lang_index]; | |
2045 | } | |
2046 | else | |
2047 | { | |
2048 | /* The header is common to all front-end languages. So | |
2049 | output_name is "gtype-desc.c" file. The calling function | |
2050 | get_output_file_with_visibility will find its outf_p. */ | |
2051 | free (*poutname); | |
2052 | *poutname = xstrdup ("gtype-desc.c"); | |
fd1e183c BS |
2053 | DBGPRINTF ("special 'gtype-desc.c' for inpname %s", |
2054 | get_input_file_name (inpf)); | |
81ae7e14 JS |
2055 | return NULL; |
2056 | } | |
2057 | } | |
2058 | ||
2059 | ||
2060 | /* Special file rules action for handling *.c source files using | |
2061 | * get_file_gtfilename to compute their output_name and | |
2062 | * get_file_basename to compute their for_name. The output_name is | |
2063 | * gt-<LANG>-<BASE>.h for language specific source files, and | |
2064 | * gt-<BASE>.h for common source files. */ | |
2065 | static outf_p | |
2066 | source_dot_c_frul (input_file* inpf, char**poutname, char**pforname) | |
2067 | { | |
2068 | char *newbasename = CONST_CAST (char*, get_file_basename (inpf)); | |
2069 | char *newoutname = CONST_CAST (char*, get_file_gtfilename (inpf)); | |
81ae7e14 | 2070 | DBGPRINTF ("inpf %p inpname %s original outname %s forname %s", |
fd1e183c BS |
2071 | (void*) inpf, get_input_file_name (inpf), |
2072 | *poutname, *pforname); | |
81ae7e14 JS |
2073 | DBGPRINTF ("newoutname %s", newoutname); |
2074 | DBGPRINTF ("newbasename %s", newbasename); | |
2075 | free (*poutname); | |
2076 | free (*pforname); | |
2077 | *poutname = newoutname; | |
2078 | *pforname = newbasename; | |
2079 | return NULL; | |
2080 | } | |
2081 | ||
2082 | /* Utility function for get_output_file_with_visibility which returns | |
2083 | * a malloc-ed substituted string using TRS on matching of the FILNAM | |
2084 | * file name, using the PMATCH array. */ | |
2085 | static char* | |
2086 | matching_file_name_substitute (const char *filnam, regmatch_t pmatch[10], | |
2087 | const char *trs) | |
2088 | { | |
2089 | struct obstack str_obstack; | |
2090 | char *str = NULL; | |
2091 | char *rawstr = NULL; | |
2092 | const char *pt = NULL; | |
2093 | DBGPRINTF ("filnam %s", filnam); | |
2094 | obstack_init (&str_obstack); | |
2095 | for (pt = trs; *pt; pt++) { | |
2096 | char c = *pt; | |
2097 | if (c == '$') | |
2098 | { | |
2099 | if (pt[1] == '$') | |
2100 | { | |
2101 | /* A double dollar $$ is substituted by a single verbatim | |
2102 | dollar, but who really uses dollar signs in file | |
2103 | paths? */ | |
2104 | obstack_1grow (&str_obstack, '$'); | |
2105 | } | |
2106 | else if (ISDIGIT (pt[1])) | |
2107 | { | |
2108 | /* Handle $0 $1 ... $9 by appropriate substitution. */ | |
2109 | int dolnum = pt[1] - '0'; | |
2110 | int so = pmatch[dolnum].rm_so; | |
2111 | int eo = pmatch[dolnum].rm_eo; | |
2112 | DBGPRINTF ("so=%d eo=%d dolnum=%d", so, eo, dolnum); | |
2113 | if (so>=0 && eo>=so) | |
2114 | obstack_grow (&str_obstack, filnam + so, eo - so); | |
2115 | } | |
2116 | else | |
2117 | { | |
2118 | /* This can happen only when files_rules is buggy! */ | |
c3284718 | 2119 | gcc_unreachable (); |
81ae7e14 JS |
2120 | } |
2121 | /* Always skip the character after the dollar. */ | |
2122 | pt++; | |
2123 | } | |
2124 | else | |
2125 | obstack_1grow (&str_obstack, c); | |
2126 | } | |
2127 | obstack_1grow (&str_obstack, '\0'); | |
2128 | rawstr = XOBFINISH (&str_obstack, char *); | |
2129 | str = xstrdup (rawstr); | |
23756963 | 2130 | obstack_free (&str_obstack, NULL); |
81ae7e14 JS |
2131 | DBGPRINTF ("matched replacement %s", str); |
2132 | rawstr = NULL; | |
2133 | return str; | |
2134 | } | |
2135 | ||
2136 | ||
9f313342 | 2137 | /* An output file, suitable for definitions, that can see declarations |
14c4815e | 2138 | made in INPF and is linked into every language that uses INPF. |
dd5a833e | 2139 | Since the result is cached inside INPF, that argument cannot be |
14c4815e | 2140 | declared constant, but is "almost" constant. */ |
9f313342 | 2141 | |
e03856fe | 2142 | outf_p |
14c4815e | 2143 | get_output_file_with_visibility (input_file *inpf) |
e2500fed | 2144 | { |
e03856fe | 2145 | outf_p r; |
81ae7e14 JS |
2146 | char *for_name = NULL; |
2147 | char *output_name = NULL; | |
2148 | const char* inpfname; | |
e2500fed | 2149 | |
e03856fe GK |
2150 | /* This can happen when we need a file with visibility on a |
2151 | structure that we've never seen. We have to just hope that it's | |
2152 | globally visible. */ | |
14c4815e BS |
2153 | if (inpf == NULL) |
2154 | inpf = system_h_file; | |
e2500fed | 2155 | |
81ae7e14 JS |
2156 | /* The result is cached in INPF, so return it if already known. */ |
2157 | if (inpf->inpoutf) | |
2158 | return inpf->inpoutf; | |
2159 | ||
bd117bb6 BS |
2160 | /* In plugin mode, return NULL unless the input_file is one of the |
2161 | plugin_files. */ | |
9b39cba9 BS |
2162 | if (plugin_files) |
2163 | { | |
9f78bf05 | 2164 | size_t i; |
9b39cba9 | 2165 | for (i = 0; i < nb_plugin_files; i++) |
81ae7e14 JS |
2166 | if (inpf == plugin_files[i]) |
2167 | { | |
2168 | inpf->inpoutf = plugin_output; | |
2169 | return plugin_output; | |
2170 | } | |
9b39cba9 BS |
2171 | |
2172 | return NULL; | |
bd117bb6 BS |
2173 | } |
2174 | ||
81ae7e14 | 2175 | inpfname = get_input_file_name (inpf); |
e2500fed | 2176 | |
81ae7e14 JS |
2177 | /* Try each rule in sequence in files_rules until one is triggered. */ |
2178 | { | |
2179 | int rulix = 0; | |
073a8998 | 2180 | DBGPRINTF ("passing input file @ %p named %s through the files_rules", |
81ae7e14 JS |
2181 | (void*) inpf, inpfname); |
2182 | ||
2183 | for (; files_rules[rulix].frul_srcexpr != NULL; rulix++) | |
2184 | { | |
2185 | DBGPRINTF ("rulix#%d srcexpr %s", | |
2186 | rulix, files_rules[rulix].frul_srcexpr); | |
2187 | ||
2188 | if (!files_rules[rulix].frul_re) | |
2189 | { | |
2190 | /* Compile the regexpr lazily. */ | |
2191 | int err = 0; | |
2192 | files_rules[rulix].frul_re = XCNEW (regex_t); | |
2193 | err = regcomp (files_rules[rulix].frul_re, | |
2194 | files_rules[rulix].frul_srcexpr, | |
2195 | files_rules[rulix].frul_rflags); | |
2196 | if (err) | |
2197 | { | |
2198 | /* The regular expression compilation fails only when | |
2199 | file_rules is buggy. */ | |
2200 | gcc_unreachable (); | |
2201 | } | |
2202 | } | |
3d7aafde | 2203 | |
81ae7e14 JS |
2204 | output_name = NULL; |
2205 | for_name = NULL; | |
e03856fe | 2206 | |
81ae7e14 JS |
2207 | /* Match the regexpr and trigger the rule if matched. */ |
2208 | { | |
2209 | /* We have exactly ten pmatch-s, one for each $0, $1, $2, | |
2210 | $3, ... $9. */ | |
2211 | regmatch_t pmatch[10]; | |
2212 | memset (pmatch, 0, sizeof (pmatch)); | |
2213 | if (!regexec (files_rules[rulix].frul_re, | |
2214 | inpfname, 10, pmatch, 0)) | |
2215 | { | |
2216 | DBGPRINTF ("input @ %p filename %s matched rulix#%d pattern %s", | |
2217 | (void*) inpf, inpfname, rulix, | |
2218 | files_rules[rulix].frul_srcexpr); | |
2219 | for_name = | |
2220 | matching_file_name_substitute (inpfname, pmatch, | |
2221 | files_rules[rulix].frul_tr_for); | |
2222 | DBGPRINTF ("for_name %s", for_name); | |
2223 | output_name = | |
2224 | matching_file_name_substitute (inpfname, pmatch, | |
2225 | files_rules[rulix].frul_tr_out); | |
2226 | DBGPRINTF ("output_name %s", output_name); | |
2227 | if (files_rules[rulix].frul_action) | |
2228 | { | |
2229 | /* Invoke our action routine. */ | |
2230 | outf_p of = NULL; | |
2231 | DBGPRINTF ("before action rulix#%d output_name %s for_name %s", | |
2232 | rulix, output_name, for_name); | |
2233 | of = | |
2234 | (files_rules[rulix].frul_action) (inpf, | |
2235 | &output_name, &for_name); | |
2236 | DBGPRINTF ("after action rulix#%d of=%p output_name %s for_name %s", | |
2237 | rulix, (void*)of, output_name, for_name); | |
2238 | /* If the action routine returned something, give it back | |
2239 | immediately and cache it in inpf. */ | |
2240 | if (of) | |
2241 | { | |
2242 | inpf->inpoutf = of; | |
2243 | return of; | |
2244 | } | |
2245 | } | |
2246 | /* The rule matched, and had no action, or that action did | |
2247 | not return any output file but could have changed the | |
2248 | output_name or for_name. We break out of the loop on the | |
2249 | files_rules. */ | |
2250 | break; | |
2251 | } | |
2252 | else | |
2253 | { | |
2254 | /* The regexpr did not match. */ | |
2255 | DBGPRINTF ("rulix#%d did not match %s pattern %s", | |
2256 | rulix, inpfname, files_rules[rulix].frul_srcexpr); | |
2257 | continue; | |
2258 | } | |
2259 | } | |
2260 | } | |
2261 | } | |
2262 | if (!output_name || !for_name) | |
2263 | { | |
0078f462 BS |
2264 | /* This should not be possible, and could only happen if the |
2265 | files_rules is incomplete or buggy. */ | |
2266 | fatal ("failed to compute output name for %s", inpfname); | |
e2500fed GK |
2267 | } |
2268 | ||
81ae7e14 JS |
2269 | /* Look through to see if we've ever seen this output filename |
2270 | before. If found, cache the result in inpf. */ | |
e03856fe | 2271 | for (r = output_files; r; r = r->next) |
ba78087b | 2272 | if (filename_cmp (r->name, output_name) == 0) |
81ae7e14 JS |
2273 | { |
2274 | inpf->inpoutf = r; | |
2275 | DBGPRINTF ("found r @ %p for output_name %s for_name %s", (void*)r, | |
2276 | output_name, for_name); | |
2277 | return r; | |
2278 | } | |
e2500fed | 2279 | |
81ae7e14 | 2280 | /* If not found, create it, and cache it in inpf. */ |
e03856fe | 2281 | r = create_file (for_name, output_name); |
e2500fed | 2282 | |
bd117bb6 | 2283 | gcc_assert (r && r->name); |
81ae7e14 JS |
2284 | DBGPRINTF ("created r @ %p for output_name %s for_name %s", (void*) r, |
2285 | output_name, for_name); | |
2286 | inpf->inpoutf = r; | |
e03856fe | 2287 | return r; |
81ae7e14 JS |
2288 | |
2289 | ||
e2500fed GK |
2290 | } |
2291 | ||
9f313342 | 2292 | /* The name of an output file, suitable for definitions, that can see |
14c4815e BS |
2293 | declarations made in INPF and is linked into every language that |
2294 | uses INPF. */ | |
9f313342 | 2295 | |
e2500fed | 2296 | const char * |
14c4815e | 2297 | get_output_file_name (input_file* inpf) |
e2500fed | 2298 | { |
14c4815e | 2299 | outf_p o = get_output_file_with_visibility (inpf); |
bd117bb6 BS |
2300 | if (o) |
2301 | return o->name; | |
2302 | return NULL; | |
e2500fed GK |
2303 | } |
2304 | ||
41e7ac51 BS |
2305 | /* Check if existing file is equal to the in memory buffer. */ |
2306 | ||
2307 | static bool | |
2308 | is_file_equal (outf_p of) | |
2309 | { | |
2310 | FILE *newfile = fopen (of->name, "r"); | |
2311 | size_t i; | |
2312 | bool equal; | |
2313 | if (newfile == NULL) | |
2314 | return false; | |
2315 | ||
2316 | equal = true; | |
2317 | for (i = 0; i < of->bufused; i++) | |
2318 | { | |
2319 | int ch; | |
2320 | ch = fgetc (newfile); | |
2321 | if (ch == EOF || ch != (unsigned char) of->buf[i]) | |
2322 | { | |
2323 | equal = false; | |
2324 | break; | |
2325 | } | |
2326 | } | |
01b974c9 MM |
2327 | if (equal && EOF != fgetc (newfile)) |
2328 | equal = false; | |
41e7ac51 BS |
2329 | fclose (newfile); |
2330 | return equal; | |
2331 | } | |
2332 | ||
e03856fe | 2333 | /* Copy the output to its final destination, |
9f313342 GK |
2334 | but don't unnecessarily change modification times. */ |
2335 | ||
e2500fed | 2336 | static void |
3d7aafde | 2337 | close_output_files (void) |
e2500fed | 2338 | { |
1d32bbcd | 2339 | int nbwrittenfiles = 0; |
e03856fe | 2340 | outf_p of; |
3d7aafde | 2341 | |
e03856fe | 2342 | for (of = output_files; of; of = of->next) |
e2500fed | 2343 | { |
e1b793e7 BS |
2344 | if (!is_file_equal (of)) |
2345 | { | |
1d32bbcd BS |
2346 | FILE *newfile = NULL; |
2347 | char *backupname = NULL; | |
2348 | /* Back up the old version of the output file gt-FOO.c as | |
2349 | BACKUPDIR/gt-FOO.c~ if we have a backup directory. */ | |
2350 | if (backup_dir) | |
2351 | { | |
2352 | backupname = concat (backup_dir, "/", | |
2353 | lbasename (of->name), "~", NULL); | |
2354 | if (!access (of->name, F_OK) && rename (of->name, backupname)) | |
2355 | fatal ("failed to back up %s as %s: %s", | |
2356 | of->name, backupname, xstrerror (errno)); | |
2357 | } | |
2358 | ||
2359 | newfile = fopen (of->name, "w"); | |
e1b793e7 BS |
2360 | if (newfile == NULL) |
2361 | fatal ("opening output file %s: %s", of->name, xstrerror (errno)); | |
2362 | if (fwrite (of->buf, 1, of->bufused, newfile) != of->bufused) | |
2363 | fatal ("writing output file %s: %s", of->name, xstrerror (errno)); | |
2364 | if (fclose (newfile) != 0) | |
2365 | fatal ("closing output file %s: %s", of->name, xstrerror (errno)); | |
1d32bbcd BS |
2366 | nbwrittenfiles++; |
2367 | if (verbosity_level >= 2 && backupname) | |
2368 | printf ("%s wrote #%-3d %s backed-up in %s\n", | |
2369 | progname, nbwrittenfiles, of->name, backupname); | |
2370 | else if (verbosity_level >= 1) | |
2371 | printf ("%s write #%-3d %s\n", progname, nbwrittenfiles, of->name); | |
2372 | free (backupname); | |
2373 | } | |
2374 | else | |
2375 | { | |
2376 | /* output file remains unchanged. */ | |
2377 | if (verbosity_level >= 2) | |
2378 | printf ("%s keep %s\n", progname, of->name); | |
e1b793e7 BS |
2379 | } |
2380 | free (of->buf); | |
41e7ac51 BS |
2381 | of->buf = NULL; |
2382 | of->bufused = of->buflength = 0; | |
e2500fed | 2383 | } |
1d32bbcd BS |
2384 | if (verbosity_level >= 1) |
2385 | printf ("%s wrote %d files.\n", progname, nbwrittenfiles); | |
e2500fed GK |
2386 | } |
2387 | \f | |
e1b793e7 BS |
2388 | struct flist |
2389 | { | |
e2500fed GK |
2390 | struct flist *next; |
2391 | int started_p; | |
14c4815e | 2392 | const input_file* file; |
e03856fe | 2393 | outf_p f; |
e2500fed GK |
2394 | }; |
2395 | ||
17211ab5 GK |
2396 | struct walk_type_data; |
2397 | ||
2398 | /* For scalars and strings, given the item in 'val'. | |
2399 | For structures, given a pointer to the item in 'val'. | |
2400 | For misc. pointers, given the item in 'val'. | |
2401 | */ | |
e1b793e7 BS |
2402 | typedef void (*process_field_fn) (type_p f, const struct walk_type_data * p); |
2403 | typedef void (*func_name_fn) (type_p s, const struct walk_type_data * p); | |
17211ab5 GK |
2404 | |
2405 | /* Parameters for write_types. */ | |
2406 | ||
3d7aafde | 2407 | struct write_types_data |
17211ab5 GK |
2408 | { |
2409 | const char *prefix; | |
2410 | const char *param_prefix; | |
2411 | const char *subfield_marker_routine; | |
2412 | const char *marker_routine; | |
2413 | const char *reorder_note_routine; | |
2414 | const char *comment; | |
9aa54cc9 | 2415 | enum write_types_kinds kind; |
17211ab5 GK |
2416 | }; |
2417 | ||
3d7aafde AJ |
2418 | static void output_escaped_param (struct walk_type_data *d, |
2419 | const char *, const char *); | |
e5cfc29f | 2420 | static void output_mangled_typename (outf_p, const_type_p); |
3d7aafde | 2421 | static void walk_type (type_p t, struct walk_type_data *d); |
63f5d5b8 | 2422 | static void write_func_for_structure (type_p orig_s, type_p s, |
a9429e29 | 2423 | const struct write_types_data *wtd); |
3d7aafde | 2424 | static void write_types_process_field |
e1b793e7 | 2425 | (type_p f, const struct walk_type_data *d); |
0182d016 | 2426 | static void write_types (outf_p output_header, |
e1b793e7 | 2427 | type_p structures, |
3d7aafde | 2428 | const struct write_types_data *wtd); |
17211ab5 | 2429 | static void write_types_local_process_field |
e1b793e7 | 2430 | (type_p f, const struct walk_type_data *d); |
63f5d5b8 | 2431 | static void write_local_func_for_structure (const_type_p orig_s, type_p s); |
0182d016 | 2432 | static void write_local (outf_p output_header, |
63f5d5b8 | 2433 | type_p structures); |
3d7aafde | 2434 | static int contains_scalar_p (type_p t); |
14c4815e | 2435 | static void put_mangled_filename (outf_p, const input_file *); |
3d7aafde AJ |
2436 | static void finish_root_table (struct flist *flp, const char *pfx, |
2437 | const char *tname, const char *lastname, | |
2438 | const char *name); | |
e1b793e7 | 2439 | static void write_root (outf_p, pair_p, type_p, const char *, int, |
63f5d5b8 | 2440 | struct fileloc *, bool); |
3d7aafde AJ |
2441 | static void write_array (outf_p f, pair_p v, |
2442 | const struct write_types_data *wtd); | |
99be7084 | 2443 | static void write_roots (pair_p, bool); |
e2500fed | 2444 | |
17211ab5 | 2445 | /* Parameters for walk_type. */ |
e2500fed | 2446 | |
17211ab5 | 2447 | struct walk_type_data |
e2500fed | 2448 | { |
17211ab5 GK |
2449 | process_field_fn process_field; |
2450 | const void *cookie; | |
2451 | outf_p of; | |
2452 | options_p opt; | |
2453 | const char *val; | |
2454 | const char *prev_val[4]; | |
2455 | int indent; | |
2456 | int counter; | |
0277fabf | 2457 | const struct fileloc *line; |
17211ab5 | 2458 | lang_bitmap bitmap; |
17211ab5 GK |
2459 | int used_length; |
2460 | type_p orig_s; | |
2461 | const char *reorder_fn; | |
d8044160 GK |
2462 | bool needs_cast_p; |
2463 | bool fn_wants_lvalue; | |
314b662a MM |
2464 | bool in_record_p; |
2465 | int loopcounter; | |
0823efed | 2466 | bool in_ptr_field; |
3ad45f7f | 2467 | bool have_this_obj; |
17211ab5 | 2468 | }; |
36a5eadd | 2469 | |
0823efed DN |
2470 | |
2471 | /* Given a string TYPE_NAME, representing a C++ typename, return a valid | |
2472 | pre-processor identifier to use in a #define directive. This replaces | |
2473 | special characters used in C++ identifiers like '>', '<' and ':' with | |
2474 | '_'. | |
2475 | ||
2476 | If no C++ special characters are found in TYPE_NAME, return | |
2477 | TYPE_NAME. Otherwise, return a copy of TYPE_NAME with the special | |
2478 | characters replaced with '_'. In this case, the caller is | |
2479 | responsible for freeing the allocated string. */ | |
2480 | ||
2481 | static const char * | |
2482 | filter_type_name (const char *type_name) | |
2483 | { | |
2484 | if (strchr (type_name, '<') || strchr (type_name, ':')) | |
2485 | { | |
2486 | size_t i; | |
2487 | char *s = xstrdup (type_name); | |
2488 | for (i = 0; i < strlen (s); i++) | |
9aa54cc9 DM |
2489 | if (s[i] == '<' || s[i] == '>' || s[i] == ':' || s[i] == ',' |
2490 | || s[i] == '*') | |
0823efed DN |
2491 | s[i] = '_'; |
2492 | return s; | |
2493 | } | |
2494 | else | |
2495 | return type_name; | |
2496 | } | |
2497 | ||
2498 | ||
36a5eadd GK |
2499 | /* Print a mangled name representing T to OF. */ |
2500 | ||
2501 | static void | |
e5cfc29f | 2502 | output_mangled_typename (outf_p of, const_type_p t) |
36a5eadd GK |
2503 | { |
2504 | if (t == NULL) | |
2505 | oprintf (of, "Z"); | |
e1b793e7 BS |
2506 | else |
2507 | switch (t->kind) | |
36a5eadd | 2508 | { |
412dc29d | 2509 | case TYPE_NONE: |
9771b263 | 2510 | case TYPE_UNDEFINED: |
412dc29d BS |
2511 | gcc_unreachable (); |
2512 | break; | |
e1b793e7 BS |
2513 | case TYPE_POINTER: |
2514 | oprintf (of, "P"); | |
2515 | output_mangled_typename (of, t->u.p); | |
2516 | break; | |
2517 | case TYPE_SCALAR: | |
2518 | oprintf (of, "I"); | |
2519 | break; | |
2520 | case TYPE_STRING: | |
2521 | oprintf (of, "S"); | |
2522 | break; | |
2523 | case TYPE_STRUCT: | |
2524 | case TYPE_UNION: | |
2525 | case TYPE_LANG_STRUCT: | |
0823efed DN |
2526 | case TYPE_USER_STRUCT: |
2527 | { | |
52a7fb3c DM |
2528 | /* For references to classes within an inheritance hierarchy, |
2529 | only ever reference the ultimate base class, since only | |
2530 | it will have gt_ functions. */ | |
32fe5271 | 2531 | t = get_ultimate_base_class (t); |
0823efed DN |
2532 | const char *id_for_tag = filter_type_name (t->u.s.tag); |
2533 | oprintf (of, "%lu%s", (unsigned long) strlen (id_for_tag), | |
2534 | id_for_tag); | |
2535 | if (id_for_tag != t->u.s.tag) | |
c3284718 | 2536 | free (CONST_CAST (char *, id_for_tag)); |
0823efed | 2537 | } |
e1b793e7 | 2538 | break; |
e1b793e7 BS |
2539 | case TYPE_ARRAY: |
2540 | gcc_unreachable (); | |
36a5eadd | 2541 | } |
e2500fed GK |
2542 | } |
2543 | ||
17211ab5 GK |
2544 | /* Print PARAM to D->OF processing escapes. D->VAL references the |
2545 | current object, D->PREV_VAL the object containing the current | |
2546 | object, ONAME is the name of the option and D->LINE is used to | |
2547 | print error messages. */ | |
9f313342 | 2548 | |
e2500fed | 2549 | static void |
3d7aafde AJ |
2550 | output_escaped_param (struct walk_type_data *d, const char *param, |
2551 | const char *oname) | |
e2500fed | 2552 | { |
17211ab5 | 2553 | const char *p; |
3d7aafde | 2554 | |
17211ab5 GK |
2555 | for (p = param; *p; p++) |
2556 | if (*p != '%') | |
2557 | oprintf (d->of, "%c", *p); | |
e1b793e7 BS |
2558 | else |
2559 | switch (*++p) | |
e2500fed | 2560 | { |
e1b793e7 BS |
2561 | case 'h': |
2562 | oprintf (d->of, "(%s)", d->prev_val[2]); | |
2563 | break; | |
2564 | case '0': | |
2565 | oprintf (d->of, "(%s)", d->prev_val[0]); | |
2566 | break; | |
2567 | case '1': | |
2568 | oprintf (d->of, "(%s)", d->prev_val[1]); | |
2569 | break; | |
2570 | case 'a': | |
2571 | { | |
2572 | const char *pp = d->val + strlen (d->val); | |
2573 | while (pp[-1] == ']') | |
2574 | while (*pp != '[') | |
2575 | pp--; | |
2576 | oprintf (d->of, "%s", pp); | |
2577 | } | |
2578 | break; | |
2579 | default: | |
2580 | error_at_line (d->line, "`%s' option contains bad escape %c%c", | |
2581 | oname, '%', *p); | |
e2500fed | 2582 | } |
17211ab5 | 2583 | } |
e2500fed | 2584 | |
52a7fb3c DM |
2585 | const char * |
2586 | get_string_option (options_p opt, const char *key) | |
2587 | { | |
2588 | for (; opt; opt = opt->next) | |
2589 | if (strcmp (opt->name, key) == 0) | |
2590 | return opt->info.string; | |
2591 | return NULL; | |
2592 | } | |
2593 | ||
9b95612e DM |
2594 | /* Machinery for avoiding duplicate tags within switch statements. */ |
2595 | struct seen_tag | |
2596 | { | |
2597 | const char *tag; | |
2598 | struct seen_tag *next; | |
2599 | }; | |
2600 | ||
2601 | int | |
2602 | already_seen_tag (struct seen_tag *seen_tags, const char *tag) | |
2603 | { | |
2604 | /* Linear search, so O(n^2), but n is currently small. */ | |
2605 | while (seen_tags) | |
2606 | { | |
2607 | if (!strcmp (seen_tags->tag, tag)) | |
2608 | return 1; | |
2609 | seen_tags = seen_tags->next; | |
2610 | } | |
2611 | /* Not yet seen this tag. */ | |
2612 | return 0; | |
2613 | } | |
2614 | ||
2615 | void | |
2616 | mark_tag_as_seen (struct seen_tag **seen_tags, const char *tag) | |
2617 | { | |
2618 | /* Add to front of linked list. */ | |
2619 | struct seen_tag *new_node = XCNEW (struct seen_tag); | |
2620 | new_node->tag = tag; | |
2621 | new_node->next = *seen_tags; | |
2622 | *seen_tags = new_node; | |
2623 | } | |
2624 | ||
52a7fb3c | 2625 | static void |
9b95612e DM |
2626 | walk_subclasses (type_p base, struct walk_type_data *d, |
2627 | struct seen_tag **seen_tags) | |
52a7fb3c | 2628 | { |
32fe5271 DM |
2629 | for (type_p sub = base->u.s.first_subclass; sub != NULL; |
2630 | sub = sub->u.s.next_sibling_class) | |
52a7fb3c | 2631 | { |
32fe5271 | 2632 | const char *type_tag = get_string_option (sub->u.s.opt, "tag"); |
9b95612e | 2633 | if (type_tag && !already_seen_tag (*seen_tags, type_tag)) |
52a7fb3c | 2634 | { |
9b95612e | 2635 | mark_tag_as_seen (seen_tags, type_tag); |
32fe5271 DM |
2636 | oprintf (d->of, "%*scase %s:\n", d->indent, "", type_tag); |
2637 | d->indent += 2; | |
2638 | oprintf (d->of, "%*s{\n", d->indent, ""); | |
2639 | d->indent += 2; | |
2640 | oprintf (d->of, "%*s%s *sub = static_cast <%s *> (x);\n", | |
2641 | d->indent, "", sub->u.s.tag, sub->u.s.tag); | |
2642 | const char *old_val = d->val; | |
2643 | d->val = "(*sub)"; | |
2644 | walk_type (sub, d); | |
2645 | d->val = old_val; | |
2646 | d->indent -= 2; | |
2647 | oprintf (d->of, "%*s}\n", d->indent, ""); | |
2648 | oprintf (d->of, "%*sbreak;\n", d->indent, ""); | |
2649 | d->indent -= 2; | |
52a7fb3c | 2650 | } |
9b95612e | 2651 | walk_subclasses (sub, d, seen_tags); |
52a7fb3c DM |
2652 | } |
2653 | } | |
0823efed | 2654 | |
17211ab5 GK |
2655 | /* Call D->PROCESS_FIELD for every field (or subfield) of D->VAL, |
2656 | which is of type T. Write code to D->OF to constrain execution (at | |
2657 | the point that D->PROCESS_FIELD is called) to the appropriate | |
4da6879c GK |
2658 | cases. Call D->PROCESS_FIELD on subobjects before calling it on |
2659 | pointers to those objects. D->PREV_VAL lists the objects | |
2660 | containing the current object, D->OPT is a list of options to | |
2661 | apply, D->INDENT is the current indentation level, D->LINE is used | |
2662 | to print error messages, D->BITMAP indicates which languages to | |
63f5d5b8 | 2663 | print the structure for. */ |
e2500fed | 2664 | |
17211ab5 | 2665 | static void |
3d7aafde | 2666 | walk_type (type_p t, struct walk_type_data *d) |
17211ab5 GK |
2667 | { |
2668 | const char *length = NULL; | |
2669 | const char *desc = NULL; | |
52a7fb3c | 2670 | const char *type_tag = NULL; |
17211ab5 | 2671 | int maybe_undef_p = 0; |
555c3771 | 2672 | int atomic_p = 0; |
17211ab5 | 2673 | options_p oo; |
b453c95f | 2674 | const struct nested_ptr_data *nested_ptr_d = NULL; |
3d7aafde | 2675 | |
d8044160 | 2676 | d->needs_cast_p = false; |
17211ab5 | 2677 | for (oo = d->opt; oo; oo = oo->next) |
412dc29d BS |
2678 | if (strcmp (oo->name, "length") == 0 && oo->kind == OPTION_STRING) |
2679 | length = oo->info.string; | |
17211ab5 GK |
2680 | else if (strcmp (oo->name, "maybe_undef") == 0) |
2681 | maybe_undef_p = 1; | |
412dc29d BS |
2682 | else if (strcmp (oo->name, "desc") == 0 && oo->kind == OPTION_STRING) |
2683 | desc = oo->info.string; | |
412dc29d BS |
2684 | else if (strcmp (oo->name, "nested_ptr") == 0 |
2685 | && oo->kind == OPTION_NESTED) | |
2686 | nested_ptr_d = (const struct nested_ptr_data *) oo->info.nested; | |
17211ab5 GK |
2687 | else if (strcmp (oo->name, "dot") == 0) |
2688 | ; | |
2689 | else if (strcmp (oo->name, "tag") == 0) | |
52a7fb3c | 2690 | type_tag = oo->info.string; |
17211ab5 GK |
2691 | else if (strcmp (oo->name, "special") == 0) |
2692 | ; | |
2693 | else if (strcmp (oo->name, "skip") == 0) | |
2694 | ; | |
555c3771 NP |
2695 | else if (strcmp (oo->name, "atomic") == 0) |
2696 | atomic_p = 1; | |
17211ab5 GK |
2697 | else if (strcmp (oo->name, "default") == 0) |
2698 | ; | |
17211ab5 GK |
2699 | else if (strcmp (oo->name, "chain_next") == 0) |
2700 | ; | |
2701 | else if (strcmp (oo->name, "chain_prev") == 0) | |
2702 | ; | |
623f8e39 JJ |
2703 | else if (strcmp (oo->name, "chain_circular") == 0) |
2704 | ; | |
17211ab5 GK |
2705 | else if (strcmp (oo->name, "reorder") == 0) |
2706 | ; | |
a9429e29 LB |
2707 | else if (strcmp (oo->name, "variable_size") == 0) |
2708 | ; | |
2a22f99c TS |
2709 | else if (strcmp (oo->name, "for_user") == 0) |
2710 | ; | |
17211ab5 GK |
2711 | else |
2712 | error_at_line (d->line, "unknown option `%s'\n", oo->name); | |
36a5eadd | 2713 | |
17211ab5 GK |
2714 | if (d->used_length) |
2715 | length = NULL; | |
36a5eadd | 2716 | |
3d7aafde | 2717 | if (maybe_undef_p |
0823efed | 2718 | && (t->kind != TYPE_POINTER || !union_or_struct_p (t->u.p))) |
17211ab5 | 2719 | { |
3d7aafde | 2720 | error_at_line (d->line, |
17211ab5 GK |
2721 | "field `%s' has invalid option `maybe_undef_p'\n", |
2722 | d->val); | |
2723 | return; | |
2724 | } | |
3d7aafde | 2725 | |
c0fd3497 | 2726 | if (atomic_p && (t->kind != TYPE_POINTER) && (t->kind != TYPE_STRING)) |
555c3771 NP |
2727 | { |
2728 | error_at_line (d->line, "field `%s' has invalid option `atomic'\n", d->val); | |
2729 | return; | |
2730 | } | |
2731 | ||
17211ab5 GK |
2732 | switch (t->kind) |
2733 | { | |
2734 | case TYPE_SCALAR: | |
2735 | case TYPE_STRING: | |
2736 | d->process_field (t, d); | |
2737 | break; | |
3d7aafde | 2738 | |
17211ab5 GK |
2739 | case TYPE_POINTER: |
2740 | { | |
0823efed | 2741 | d->in_ptr_field = true; |
e1b793e7 | 2742 | if (maybe_undef_p && t->u.p->u.s.line.file == NULL) |
17211ab5 | 2743 | { |
b2d59f6f | 2744 | oprintf (d->of, "%*sgcc_assert (!%s);\n", d->indent, "", d->val); |
17211ab5 GK |
2745 | break; |
2746 | } | |
e2500fed | 2747 | |
555c3771 NP |
2748 | /* If a pointer type is marked as "atomic", we process the |
2749 | field itself, but we don't walk the data that they point to. | |
313465bb | 2750 | |
555c3771 NP |
2751 | There are two main cases where we walk types: to mark |
2752 | pointers that are reachable, and to relocate pointers when | |
2753 | writing a PCH file. In both cases, an atomic pointer is | |
2754 | itself marked or relocated, but the memory that it points | |
2755 | to is left untouched. In the case of PCH, that memory will | |
2756 | be read/written unchanged to the PCH file. */ | |
2757 | if (atomic_p) | |
2758 | { | |
2759 | oprintf (d->of, "%*sif (%s != NULL) {\n", d->indent, "", d->val); | |
2760 | d->indent += 2; | |
2761 | d->process_field (t, d); | |
2762 | d->indent -= 2; | |
2763 | oprintf (d->of, "%*s}\n", d->indent, ""); | |
2764 | break; | |
2765 | } | |
2766 | ||
e1b793e7 | 2767 | if (!length) |
e2500fed | 2768 | { |
63f5d5b8 | 2769 | if (!union_or_struct_p (t->u.p)) |
e2500fed | 2770 | { |
3d7aafde | 2771 | error_at_line (d->line, |
17211ab5 GK |
2772 | "field `%s' is pointer to unimplemented type", |
2773 | d->val); | |
e2500fed GK |
2774 | break; |
2775 | } | |
3d7aafde | 2776 | |
b453c95f GK |
2777 | if (nested_ptr_d) |
2778 | { | |
2779 | const char *oldprevval2 = d->prev_val[2]; | |
2780 | ||
0823efed | 2781 | if (!union_or_struct_p (nested_ptr_d->type)) |
b453c95f GK |
2782 | { |
2783 | error_at_line (d->line, | |
2784 | "field `%s' has invalid " | |
e1b793e7 | 2785 | "option `nested_ptr'\n", d->val); |
b453c95f GK |
2786 | return; |
2787 | } | |
2788 | ||
2789 | d->prev_val[2] = d->val; | |
2790 | oprintf (d->of, "%*s{\n", d->indent, ""); | |
2791 | d->indent += 2; | |
2792 | d->val = xasprintf ("x%d", d->counter++); | |
d8044160 | 2793 | oprintf (d->of, "%*s%s %s * %s%s =\n", d->indent, "", |
b8698a0f L |
2794 | (nested_ptr_d->type->kind == TYPE_UNION |
2795 | ? "union" : "struct"), | |
2796 | nested_ptr_d->type->u.s.tag, | |
e1b793e7 | 2797 | d->fn_wants_lvalue ? "" : "const ", d->val); |
b453c95f GK |
2798 | oprintf (d->of, "%*s", d->indent + 2, ""); |
2799 | output_escaped_param (d, nested_ptr_d->convert_from, | |
2800 | "nested_ptr"); | |
2801 | oprintf (d->of, ";\n"); | |
2802 | ||
2803 | d->process_field (nested_ptr_d->type, d); | |
2804 | ||
d8044160 GK |
2805 | if (d->fn_wants_lvalue) |
2806 | { | |
2807 | oprintf (d->of, "%*s%s = ", d->indent, "", | |
2808 | d->prev_val[2]); | |
2809 | d->prev_val[2] = d->val; | |
2810 | output_escaped_param (d, nested_ptr_d->convert_to, | |
2811 | "nested_ptr"); | |
2812 | oprintf (d->of, ";\n"); | |
2813 | } | |
b453c95f GK |
2814 | |
2815 | d->indent -= 2; | |
2816 | oprintf (d->of, "%*s}\n", d->indent, ""); | |
2817 | d->val = d->prev_val[2]; | |
2818 | d->prev_val[2] = oldprevval2; | |
2819 | } | |
2820 | else | |
2821 | d->process_field (t->u.p, d); | |
e2500fed | 2822 | } |
3d7aafde | 2823 | else |
e2500fed | 2824 | { |
314b662a | 2825 | int loopcounter = d->loopcounter; |
17211ab5 GK |
2826 | const char *oldval = d->val; |
2827 | const char *oldprevval3 = d->prev_val[3]; | |
e2500fed GK |
2828 | char *newval; |
2829 | ||
17211ab5 GK |
2830 | oprintf (d->of, "%*sif (%s != NULL) {\n", d->indent, "", d->val); |
2831 | d->indent += 2; | |
2832 | oprintf (d->of, "%*ssize_t i%d;\n", d->indent, "", loopcounter); | |
e1b793e7 BS |
2833 | oprintf (d->of, "%*sfor (i%d = 0; i%d != (size_t)(", d->indent, |
2834 | "", loopcounter, loopcounter); | |
314b662a MM |
2835 | if (!d->in_record_p) |
2836 | output_escaped_param (d, length, "length"); | |
2837 | else | |
2838 | oprintf (d->of, "l%d", loopcounter); | |
3ad45f7f SB |
2839 | if (d->have_this_obj) |
2840 | /* Try to unswitch loops (see PR53880). */ | |
2841 | oprintf (d->of, ") && ((void *)%s == this_obj", oldval); | |
17211ab5 GK |
2842 | oprintf (d->of, "); i%d++) {\n", loopcounter); |
2843 | d->indent += 2; | |
2844 | d->val = newval = xasprintf ("%s[i%d]", oldval, loopcounter); | |
2845 | d->used_length = 1; | |
2846 | d->prev_val[3] = oldval; | |
2847 | walk_type (t->u.p, d); | |
e2500fed | 2848 | free (newval); |
17211ab5 GK |
2849 | d->val = oldval; |
2850 | d->prev_val[3] = oldprevval3; | |
2851 | d->used_length = 0; | |
2852 | d->indent -= 2; | |
2853 | oprintf (d->of, "%*s}\n", d->indent, ""); | |
e1b793e7 | 2854 | d->process_field (t, d); |
17211ab5 GK |
2855 | d->indent -= 2; |
2856 | oprintf (d->of, "%*s}\n", d->indent, ""); | |
e2500fed | 2857 | } |
0823efed | 2858 | d->in_ptr_field = false; |
17211ab5 GK |
2859 | } |
2860 | break; | |
e2500fed | 2861 | |
17211ab5 GK |
2862 | case TYPE_ARRAY: |
2863 | { | |
314b662a | 2864 | int loopcounter; |
17211ab5 GK |
2865 | const char *oldval = d->val; |
2866 | char *newval; | |
2867 | ||
6356f892 | 2868 | /* If it's an array of scalars, we optimize by not generating |
17211ab5 GK |
2869 | any code. */ |
2870 | if (t->u.a.p->kind == TYPE_SCALAR) | |
e2500fed | 2871 | break; |
3d7aafde | 2872 | |
314b662a MM |
2873 | if (length) |
2874 | loopcounter = d->loopcounter; | |
2875 | else | |
2876 | loopcounter = d->counter++; | |
2877 | ||
5039610b SL |
2878 | /* When walking an array, compute the length and store it in a |
2879 | local variable before walking the array elements, instead of | |
2880 | recomputing the length expression each time through the loop. | |
2881 | This is necessary to handle tcc_vl_exp objects like CALL_EXPR, | |
2882 | where the length is stored in the first array element, | |
2883 | because otherwise that operand can get overwritten on the | |
2884 | first iteration. */ | |
17211ab5 GK |
2885 | oprintf (d->of, "%*s{\n", d->indent, ""); |
2886 | d->indent += 2; | |
2887 | oprintf (d->of, "%*ssize_t i%d;\n", d->indent, "", loopcounter); | |
314b662a MM |
2888 | if (!d->in_record_p || !length) |
2889 | { | |
2890 | oprintf (d->of, "%*ssize_t l%d = (size_t)(", | |
2891 | d->indent, "", loopcounter); | |
2892 | if (length) | |
2893 | output_escaped_param (d, length, "length"); | |
2894 | else | |
2895 | oprintf (d->of, "%s", t->u.a.len); | |
2896 | oprintf (d->of, ");\n"); | |
2897 | } | |
b8698a0f | 2898 | |
5039610b SL |
2899 | oprintf (d->of, "%*sfor (i%d = 0; i%d != l%d; i%d++) {\n", |
2900 | d->indent, "", | |
2901 | loopcounter, loopcounter, loopcounter, loopcounter); | |
17211ab5 GK |
2902 | d->indent += 2; |
2903 | d->val = newval = xasprintf ("%s[i%d]", oldval, loopcounter); | |
2904 | d->used_length = 1; | |
2905 | walk_type (t->u.a.p, d); | |
2906 | free (newval); | |
2907 | d->used_length = 0; | |
2908 | d->val = oldval; | |
2909 | d->indent -= 2; | |
2910 | oprintf (d->of, "%*s}\n", d->indent, ""); | |
2911 | d->indent -= 2; | |
2912 | oprintf (d->of, "%*s}\n", d->indent, ""); | |
2913 | } | |
2914 | break; | |
3d7aafde | 2915 | |
17211ab5 GK |
2916 | case TYPE_STRUCT: |
2917 | case TYPE_UNION: | |
2918 | { | |
2919 | pair_p f; | |
2920 | const char *oldval = d->val; | |
2921 | const char *oldprevval1 = d->prev_val[1]; | |
2922 | const char *oldprevval2 = d->prev_val[2]; | |
2923 | const int union_p = t->kind == TYPE_UNION; | |
2924 | int seen_default_p = 0; | |
2925 | options_p o; | |
314b662a MM |
2926 | int lengths_seen = 0; |
2927 | int endcounter; | |
2928 | bool any_length_seen = false; | |
17211ab5 | 2929 | |
e1b793e7 | 2930 | if (!t->u.s.line.file) |
17211ab5 | 2931 | error_at_line (d->line, "incomplete structure `%s'", t->u.s.tag); |
e2500fed | 2932 | |
17211ab5 | 2933 | if ((d->bitmap & t->u.s.bitmap) != d->bitmap) |
e2500fed | 2934 | { |
17211ab5 GK |
2935 | error_at_line (d->line, |
2936 | "structure `%s' defined for mismatching languages", | |
2937 | t->u.s.tag); | |
2938 | error_at_line (&t->u.s.line, "one structure defined here"); | |
2939 | } | |
e2500fed | 2940 | |
17211ab5 GK |
2941 | /* Some things may also be defined in the structure's options. */ |
2942 | for (o = t->u.s.opt; o; o = o->next) | |
412dc29d BS |
2943 | if (!desc && strcmp (o->name, "desc") == 0 |
2944 | && o->kind == OPTION_STRING) | |
2945 | desc = o->info.string; | |
e2500fed | 2946 | |
17211ab5 GK |
2947 | d->prev_val[2] = oldval; |
2948 | d->prev_val[1] = oldprevval2; | |
2949 | if (union_p) | |
2950 | { | |
2951 | if (desc == NULL) | |
e2500fed | 2952 | { |
e1b793e7 BS |
2953 | error_at_line (d->line, |
2954 | "missing `desc' option for union `%s'", | |
17211ab5 GK |
2955 | t->u.s.tag); |
2956 | desc = "1"; | |
e2500fed | 2957 | } |
fedfecef | 2958 | oprintf (d->of, "%*sswitch ((int) (", d->indent, ""); |
17211ab5 | 2959 | output_escaped_param (d, desc, "desc"); |
fedfecef | 2960 | oprintf (d->of, "))\n"); |
17211ab5 GK |
2961 | d->indent += 2; |
2962 | oprintf (d->of, "%*s{\n", d->indent, ""); | |
2963 | } | |
52a7fb3c DM |
2964 | else if (desc) |
2965 | { | |
32fe5271 DM |
2966 | /* We have a "desc" option on a struct, signifying the |
2967 | base class within a GC-managed inheritance hierarchy. | |
2968 | The current code specialcases the base class, then walks | |
2969 | into subclasses, recursing into this routine to handle them. | |
2970 | This organization requires the base class to have a case in | |
2971 | the switch statement, and hence a tag value is mandatory | |
2972 | for the base class. This restriction could be removed, but | |
2973 | it would require some restructing of this code. */ | |
2974 | if (!type_tag) | |
2975 | { | |
2976 | error_at_line (d->line, | |
2977 | "missing `tag' option for type `%s'", | |
2978 | t->u.s.tag); | |
2979 | } | |
fedfecef | 2980 | oprintf (d->of, "%*sswitch ((int) (", d->indent, ""); |
52a7fb3c | 2981 | output_escaped_param (d, desc, "desc"); |
fedfecef | 2982 | oprintf (d->of, "))\n"); |
52a7fb3c DM |
2983 | d->indent += 2; |
2984 | oprintf (d->of, "%*s{\n", d->indent, ""); | |
2985 | oprintf (d->of, "%*scase %s:\n", d->indent, "", type_tag); | |
2986 | d->indent += 2; | |
2987 | } | |
314b662a | 2988 | |
52a7fb3c | 2989 | FOR_ALL_INHERITED_FIELDS (t, f) |
314b662a MM |
2990 | { |
2991 | options_p oo; | |
2992 | int skip_p = 0; | |
2993 | const char *fieldlength = NULL; | |
2994 | ||
2995 | d->reorder_fn = NULL; | |
2996 | for (oo = f->opt; oo; oo = oo->next) | |
2997 | if (strcmp (oo->name, "skip") == 0) | |
2998 | skip_p = 1; | |
2999 | else if (strcmp (oo->name, "length") == 0 | |
3000 | && oo->kind == OPTION_STRING) | |
3001 | fieldlength = oo->info.string; | |
3002 | ||
3003 | if (skip_p) | |
3004 | continue; | |
3005 | if (fieldlength) | |
3006 | { | |
3007 | lengths_seen++; | |
3008 | d->counter++; | |
3009 | if (!union_p) | |
3010 | { | |
3011 | if (!any_length_seen) | |
3012 | { | |
3013 | oprintf (d->of, "%*s{\n", d->indent, ""); | |
3014 | d->indent += 2; | |
3015 | } | |
3016 | any_length_seen = true; | |
3017 | ||
3018 | oprintf (d->of, "%*ssize_t l%d = (size_t)(", | |
3019 | d->indent, "", d->counter - 1); | |
3020 | output_escaped_param (d, fieldlength, "length"); | |
3021 | oprintf (d->of, ");\n"); | |
3022 | } | |
3023 | } | |
3024 | } | |
3025 | endcounter = d->counter; | |
3026 | ||
52a7fb3c | 3027 | FOR_ALL_INHERITED_FIELDS (t, f) |
17211ab5 GK |
3028 | { |
3029 | options_p oo; | |
3030 | const char *dot = "."; | |
3031 | const char *tagid = NULL; | |
3032 | int skip_p = 0; | |
3033 | int default_p = 0; | |
314b662a | 3034 | const char *fieldlength = NULL; |
17211ab5 GK |
3035 | char *newval; |
3036 | ||
3037 | d->reorder_fn = NULL; | |
3038 | for (oo = f->opt; oo; oo = oo->next) | |
412dc29d BS |
3039 | if (strcmp (oo->name, "dot") == 0 |
3040 | && oo->kind == OPTION_STRING) | |
3041 | dot = oo->info.string; | |
3042 | else if (strcmp (oo->name, "tag") == 0 | |
3043 | && oo->kind == OPTION_STRING) | |
3044 | tagid = oo->info.string; | |
17211ab5 GK |
3045 | else if (strcmp (oo->name, "skip") == 0) |
3046 | skip_p = 1; | |
3047 | else if (strcmp (oo->name, "default") == 0) | |
3048 | default_p = 1; | |
412dc29d BS |
3049 | else if (strcmp (oo->name, "reorder") == 0 |
3050 | && oo->kind == OPTION_STRING) | |
3051 | d->reorder_fn = oo->info.string; | |
314b662a MM |
3052 | else if (strcmp (oo->name, "length") == 0 |
3053 | && oo->kind == OPTION_STRING) | |
3054 | fieldlength = oo->info.string; | |
17211ab5 GK |
3055 | |
3056 | if (skip_p) | |
3057 | continue; | |
3058 | ||
3059 | if (union_p && tagid) | |
e2500fed | 3060 | { |
17211ab5 GK |
3061 | oprintf (d->of, "%*scase %s:\n", d->indent, "", tagid); |
3062 | d->indent += 2; | |
e2500fed | 3063 | } |
17211ab5 | 3064 | else if (union_p && default_p) |
e2500fed | 3065 | { |
17211ab5 GK |
3066 | oprintf (d->of, "%*sdefault:\n", d->indent, ""); |
3067 | d->indent += 2; | |
3068 | seen_default_p = 1; | |
e2500fed | 3069 | } |
e1b793e7 | 3070 | else if (!union_p && (default_p || tagid)) |
3d7aafde | 3071 | error_at_line (d->line, |
17211ab5 GK |
3072 | "can't use `%s' outside a union on field `%s'", |
3073 | default_p ? "default" : "tag", f->name); | |
e1b793e7 | 3074 | else if (union_p && !(default_p || tagid) |
17211ab5 | 3075 | && f->type->kind == TYPE_SCALAR) |
e2500fed | 3076 | { |
17211ab5 | 3077 | fprintf (stderr, |
e1b793e7 | 3078 | "%s:%d: warning: field `%s' is missing `tag' or `default' option\n", |
14c4815e BS |
3079 | get_input_file_name (d->line->file), d->line->line, |
3080 | f->name); | |
17211ab5 | 3081 | continue; |
e2500fed | 3082 | } |
e1b793e7 | 3083 | else if (union_p && !(default_p || tagid)) |
3d7aafde | 3084 | error_at_line (d->line, |
17211ab5 | 3085 | "field `%s' is missing `tag' or `default' option", |
e2500fed | 3086 | f->name); |
3d7aafde | 3087 | |
314b662a MM |
3088 | if (fieldlength) |
3089 | { | |
3090 | d->loopcounter = endcounter - lengths_seen--; | |
3091 | } | |
3092 | ||
17211ab5 GK |
3093 | d->line = &f->line; |
3094 | d->val = newval = xasprintf ("%s%s%s", oldval, dot, f->name); | |
3095 | d->opt = f->opt; | |
d8044160 | 3096 | d->used_length = false; |
314b662a | 3097 | d->in_record_p = !union_p; |
17211ab5 | 3098 | |
63f5d5b8 | 3099 | walk_type (f->type, d); |
17211ab5 | 3100 | |
314b662a MM |
3101 | d->in_record_p = false; |
3102 | ||
17211ab5 GK |
3103 | free (newval); |
3104 | ||
3105 | if (union_p) | |
e2500fed | 3106 | { |
17211ab5 GK |
3107 | oprintf (d->of, "%*sbreak;\n", d->indent, ""); |
3108 | d->indent -= 2; | |
e2500fed | 3109 | } |
17211ab5 GK |
3110 | } |
3111 | d->reorder_fn = NULL; | |
e2500fed | 3112 | |
17211ab5 GK |
3113 | d->val = oldval; |
3114 | d->prev_val[1] = oldprevval1; | |
3115 | d->prev_val[2] = oldprevval2; | |
3116 | ||
e1b793e7 | 3117 | if (union_p && !seen_default_p) |
17211ab5 GK |
3118 | { |
3119 | oprintf (d->of, "%*sdefault:\n", d->indent, ""); | |
3120 | oprintf (d->of, "%*s break;\n", d->indent, ""); | |
3121 | } | |
52a7fb3c DM |
3122 | |
3123 | if (desc && !union_p) | |
3124 | { | |
3125 | oprintf (d->of, "%*sbreak;\n", d->indent, ""); | |
3126 | d->indent -= 2; | |
3127 | } | |
17211ab5 GK |
3128 | if (union_p) |
3129 | { | |
3130 | oprintf (d->of, "%*s}\n", d->indent, ""); | |
3131 | d->indent -= 2; | |
e2500fed | 3132 | } |
52a7fb3c DM |
3133 | else if (desc) |
3134 | { | |
3135 | /* Add cases to handle subclasses. */ | |
9b95612e DM |
3136 | struct seen_tag *tags = NULL; |
3137 | walk_subclasses (t, d, &tags); | |
52a7fb3c | 3138 | |
32fe5271 DM |
3139 | /* Ensure that if someone forgets a "tag" option that we don't |
3140 | silent fail to traverse that subclass's fields. */ | |
3141 | if (!seen_default_p) | |
3142 | { | |
3143 | oprintf (d->of, "%*s/* Unrecognized tag value. */\n", | |
3144 | d->indent, ""); | |
3145 | oprintf (d->of, "%*sdefault: gcc_unreachable (); \n", | |
3146 | d->indent, ""); | |
3147 | } | |
3148 | ||
52a7fb3c DM |
3149 | /* End of the switch statement */ |
3150 | oprintf (d->of, "%*s}\n", d->indent, ""); | |
3151 | d->indent -= 2; | |
3152 | } | |
314b662a MM |
3153 | if (any_length_seen) |
3154 | { | |
3155 | d->indent -= 2; | |
3156 | oprintf (d->of, "%*s}\n", d->indent, ""); | |
3157 | } | |
17211ab5 GK |
3158 | } |
3159 | break; | |
e2500fed | 3160 | |
17211ab5 GK |
3161 | case TYPE_LANG_STRUCT: |
3162 | { | |
3163 | type_p nt; | |
3164 | for (nt = t->u.s.lang_struct; nt; nt = nt->next) | |
3165 | if ((d->bitmap & nt->u.s.bitmap) == d->bitmap) | |
3166 | break; | |
3167 | if (nt == NULL) | |
3168 | error_at_line (d->line, "structure `%s' differs between languages", | |
3169 | t->u.s.tag); | |
3170 | else | |
3171 | walk_type (nt, d); | |
3172 | } | |
3173 | break; | |
3174 | ||
0823efed DN |
3175 | case TYPE_USER_STRUCT: |
3176 | d->process_field (t, d); | |
3177 | break; | |
3178 | ||
9771b263 DN |
3179 | case TYPE_NONE: |
3180 | case TYPE_UNDEFINED: | |
b2d59f6f | 3181 | gcc_unreachable (); |
e2500fed | 3182 | } |
17211ab5 GK |
3183 | } |
3184 | ||
3185 | /* process_field routine for marking routines. */ | |
3186 | ||
3187 | static void | |
3d7aafde | 3188 | write_types_process_field (type_p f, const struct walk_type_data *d) |
17211ab5 GK |
3189 | { |
3190 | const struct write_types_data *wtd; | |
f099d360 | 3191 | const char *cast = d->needs_cast_p ? "(void *)" : ""; |
17211ab5 | 3192 | wtd = (const struct write_types_data *) d->cookie; |
3d7aafde | 3193 | |
17211ab5 | 3194 | switch (f->kind) |
e2500fed | 3195 | { |
412dc29d | 3196 | case TYPE_NONE: |
9771b263 | 3197 | case TYPE_UNDEFINED: |
412dc29d | 3198 | gcc_unreachable (); |
17211ab5 | 3199 | case TYPE_POINTER: |
3d7aafde | 3200 | oprintf (d->of, "%*s%s (%s%s", d->indent, "", |
f099d360 | 3201 | wtd->subfield_marker_routine, cast, d->val); |
17211ab5 | 3202 | if (wtd->param_prefix) |
36a5eadd | 3203 | { |
163fa1eb DS |
3204 | if (f->u.p->kind == TYPE_SCALAR) |
3205 | /* The current type is a pointer to a scalar (so not | |
3206 | considered like a pointer to instances of user defined | |
3207 | types) and we are seeing it; it means we must be even | |
3208 | more careful about the second argument of the | |
3209 | SUBFIELD_MARKER_ROUTINE call. That argument must | |
3210 | always be the instance of the type for which | |
3211 | write_func_for_structure was called - this really is | |
3212 | what the function SUBFIELD_MARKER_ROUTINE expects. | |
3213 | That is, it must be an instance of the ORIG_S type | |
3214 | parameter of write_func_for_structure. The convention | |
3215 | is that that argument must be "x" in that case (as set | |
3216 | by write_func_for_structure). The problem is, we can't | |
3217 | count on d->prev_val[3] to be always set to "x" in that | |
3218 | case. Sometimes walk_type can set it to something else | |
3219 | (to e.g cooperate with write_array when called from | |
3220 | write_roots). So let's set it to "x" here then. */ | |
3221 | oprintf (d->of, ", x"); | |
3222 | else | |
3223 | oprintf (d->of, ", %s", d->prev_val[3]); | |
17211ab5 GK |
3224 | if (d->orig_s) |
3225 | { | |
3226 | oprintf (d->of, ", gt_%s_", wtd->param_prefix); | |
3227 | output_mangled_typename (d->of, d->orig_s); | |
3228 | } | |
3229 | else | |
3230 | oprintf (d->of, ", gt_%sa_%s", wtd->param_prefix, d->prev_val[0]); | |
36a5eadd | 3231 | } |
17211ab5 GK |
3232 | oprintf (d->of, ");\n"); |
3233 | if (d->reorder_fn && wtd->reorder_note_routine) | |
3d7aafde | 3234 | oprintf (d->of, "%*s%s (%s%s, %s, %s);\n", d->indent, "", |
f099d360 | 3235 | wtd->reorder_note_routine, cast, d->val, |
17211ab5 GK |
3236 | d->prev_val[3], d->reorder_fn); |
3237 | break; | |
3238 | ||
3239 | case TYPE_STRING: | |
17211ab5 GK |
3240 | case TYPE_STRUCT: |
3241 | case TYPE_UNION: | |
3242 | case TYPE_LANG_STRUCT: | |
0823efed DN |
3243 | case TYPE_USER_STRUCT: |
3244 | if (f->kind == TYPE_USER_STRUCT && !d->in_ptr_field) | |
3245 | { | |
3246 | /* If F is a user-defined type and the field is not a | |
3247 | pointer to the type, then we should not generate the | |
3248 | standard pointer-marking code. All we need to do is call | |
3249 | the user-provided marking function to process the fields | |
3250 | of F. */ | |
3251 | oprintf (d->of, "%*sgt_%sx (&(%s));\n", d->indent, "", wtd->prefix, | |
3252 | d->val); | |
3253 | } | |
3254 | else | |
3255 | { | |
3256 | oprintf (d->of, "%*sgt_%s_", d->indent, "", wtd->prefix); | |
3257 | output_mangled_typename (d->of, f); | |
3258 | oprintf (d->of, " (%s%s);\n", cast, d->val); | |
3259 | if (d->reorder_fn && wtd->reorder_note_routine) | |
3260 | oprintf (d->of, "%*s%s (%s%s, %s%s, %s);\n", d->indent, "", | |
3261 | wtd->reorder_note_routine, cast, d->val, cast, d->val, | |
3262 | d->reorder_fn); | |
3263 | } | |
17211ab5 GK |
3264 | break; |
3265 | ||
3266 | case TYPE_SCALAR: | |
3267 | break; | |
3d7aafde | 3268 | |
412dc29d | 3269 | case TYPE_ARRAY: |
b2d59f6f | 3270 | gcc_unreachable (); |
e2500fed GK |
3271 | } |
3272 | } | |
3273 | ||
0277fabf LB |
3274 | /* Return an output file that is suitable for definitions which can |
3275 | reference struct S */ | |
3276 | ||
3277 | static outf_p | |
63f5d5b8 | 3278 | get_output_file_for_structure (const_type_p s) |
0277fabf | 3279 | { |
14c4815e | 3280 | const input_file *fn; |
0277fabf | 3281 | |
0823efed | 3282 | gcc_assert (union_or_struct_p (s)); |
90aa3e91 BS |
3283 | fn = s->u.s.line.file; |
3284 | ||
14c4815e BS |
3285 | /* The call to get_output_file_with_visibility may update fn by |
3286 | caching its result inside, so we need the CONST_CAST. */ | |
3287 | return get_output_file_with_visibility (CONST_CAST (input_file*, fn)); | |
0277fabf LB |
3288 | } |
3289 | ||
0823efed DN |
3290 | |
3291 | /* Returns the specifier keyword for a string or union type S, empty string | |
3292 | otherwise. */ | |
3293 | ||
3294 | static const char * | |
3295 | get_type_specifier (const type_p s) | |
3296 | { | |
3297 | if (s->kind == TYPE_STRUCT) | |
3298 | return "struct "; | |
3299 | else if (s->kind == TYPE_LANG_STRUCT) | |
3300 | return get_type_specifier (s->u.s.lang_struct); | |
3301 | else if (s->kind == TYPE_UNION) | |
3302 | return "union "; | |
3303 | return ""; | |
3304 | } | |
3305 | ||
3306 | ||
3307 | /* Emits a declaration for type TY (assumed to be a union or a | |
3308 | structure) on stream OUT. */ | |
3309 | ||
3310 | static void | |
3311 | write_type_decl (outf_p out, type_p ty) | |
3312 | { | |
3313 | if (union_or_struct_p (ty)) | |
3314 | oprintf (out, "%s%s", get_type_specifier (ty), ty->u.s.tag); | |
3315 | else if (ty->kind == TYPE_SCALAR) | |
3316 | { | |
3317 | if (ty->u.scalar_is_char) | |
3318 | oprintf (out, "const char"); | |
3319 | else | |
3320 | oprintf (out, "void"); | |
3321 | } | |
3322 | else if (ty->kind == TYPE_POINTER) | |
3323 | { | |
3324 | write_type_decl (out, ty->u.p); | |
3325 | oprintf (out, " *"); | |
3326 | } | |
3327 | else if (ty->kind == TYPE_ARRAY) | |
3328 | { | |
3329 | write_type_decl (out, ty->u.a.p); | |
3330 | oprintf (out, " *"); | |
3331 | } | |
3332 | else if (ty->kind == TYPE_STRING) | |
3333 | { | |
3334 | oprintf (out, "const char *"); | |
3335 | } | |
3336 | else | |
3337 | gcc_unreachable (); | |
3338 | } | |
3339 | ||
3340 | ||
3341 | /* Write on OF the name of the marker function for structure S. PREFIX | |
3342 | is the prefix to use (to distinguish ggc from pch markers). */ | |
3343 | ||
3344 | static void | |
3345 | write_marker_function_name (outf_p of, type_p s, const char *prefix) | |
3346 | { | |
3347 | if (union_or_struct_p (s)) | |
3348 | { | |
3349 | const char *id_for_tag = filter_type_name (s->u.s.tag); | |
3350 | oprintf (of, "gt_%sx_%s", prefix, id_for_tag); | |
3351 | if (id_for_tag != s->u.s.tag) | |
c3284718 | 3352 | free (CONST_CAST (char *, id_for_tag)); |
0823efed | 3353 | } |
0823efed DN |
3354 | else |
3355 | gcc_unreachable (); | |
3356 | } | |
3357 | ||
0823efed DN |
3358 | /* Write on OF a user-callable routine to act as an entry point for |
3359 | the marking routine for S, generated by write_func_for_structure. | |
9aa54cc9 | 3360 | WTD distinguishes between ggc and pch markers. */ |
0823efed DN |
3361 | |
3362 | static void | |
9aa54cc9 | 3363 | write_user_func_for_structure_ptr (outf_p of, type_p s, const write_types_data *wtd) |
0823efed | 3364 | { |
0823efed DN |
3365 | gcc_assert (union_or_struct_p (s)); |
3366 | ||
3367 | type_p alias_of = NULL; | |
3368 | for (options_p opt = s->u.s.opt; opt; opt = opt->next) | |
3369 | if (strcmp (opt->name, "ptr_alias") == 0) | |
3370 | { | |
3371 | /* ALIAS_OF is set if ORIG_S is marked "ptr_alias". This means that | |
3372 | we do not generate marking code for ORIG_S here. Instead, a | |
3373 | forwarder #define in gtype-desc.h will cause every call to its | |
3374 | marker to call the target of this alias. | |
3375 | ||
3376 | However, we still want to create a user entry code for the | |
3377 | aliased type. So, if ALIAS_OF is set, we only generate the | |
3378 | user-callable marker function. */ | |
3379 | alias_of = opt->info.type; | |
3380 | break; | |
3381 | } | |
3382 | ||
9aa54cc9 DM |
3383 | DBGPRINTF ("write_user_func_for_structure_ptr: %s %s", s->u.s.tag, |
3384 | wtd->prefix); | |
3385 | ||
3386 | /* Only write the function once. */ | |
3387 | if (s->u.s.wrote_user_func_for_ptr[wtd->kind]) | |
3388 | return; | |
3389 | s->u.s.wrote_user_func_for_ptr[wtd->kind] = true; | |
3390 | ||
0823efed | 3391 | oprintf (of, "\nvoid\n"); |
9aa54cc9 | 3392 | oprintf (of, "gt_%sx (", wtd->prefix); |
0823efed DN |
3393 | write_type_decl (of, s); |
3394 | oprintf (of, " *& x)\n"); | |
3395 | oprintf (of, "{\n"); | |
3396 | oprintf (of, " if (x)\n "); | |
9aa54cc9 DM |
3397 | write_marker_function_name (of, |
3398 | alias_of ? alias_of : get_ultimate_base_class (s), | |
3399 | wtd->prefix); | |
0823efed DN |
3400 | oprintf (of, " ((void *) x);\n"); |
3401 | oprintf (of, "}\n"); | |
3402 | } | |
3403 | ||
3404 | ||
3405 | /* Write a function to mark all the fields of type S on OF. PREFIX | |
3406 | and D are as in write_user_marking_functions. */ | |
3407 | ||
3408 | static void | |
3409 | write_user_func_for_structure_body (type_p s, const char *prefix, | |
3410 | struct walk_type_data *d) | |
3411 | { | |
3412 | oprintf (d->of, "\nvoid\n"); | |
3413 | oprintf (d->of, "gt_%sx (", prefix); | |
3414 | write_type_decl (d->of, s); | |
3415 | oprintf (d->of, "& x_r ATTRIBUTE_UNUSED)\n"); | |
3416 | oprintf (d->of, "{\n"); | |
3417 | oprintf (d->of, " "); | |
3418 | write_type_decl (d->of, s); | |
3419 | oprintf (d->of, " * ATTRIBUTE_UNUSED x = &x_r;\n"); | |
3420 | d->val = "(*x)"; | |
3421 | d->indent = 2; | |
3422 | walk_type (s, d); | |
3423 | oprintf (d->of, "}\n"); | |
3424 | } | |
3425 | ||
0823efed DN |
3426 | /* Emit the user-callable functions needed to mark all the types used |
3427 | by the user structure S. PREFIX is the prefix to use to | |
3428 | distinguish ggc and pch markers. D contains data needed to pass to | |
3429 | walk_type when traversing the fields of a type. | |
3430 | ||
3431 | For every type T referenced by S, two routines are generated: one | |
3432 | that takes 'T *', marks the pointer and calls the second routine, | |
3433 | which just marks the fields of T. */ | |
3434 | ||
3435 | static void | |
9aa54cc9 DM |
3436 | write_user_marking_functions (type_p s, |
3437 | const write_types_data *w, | |
0823efed DN |
3438 | struct walk_type_data *d) |
3439 | { | |
3440 | gcc_assert (s->kind == TYPE_USER_STRUCT); | |
3441 | ||
3442 | for (pair_p fld = s->u.s.fields; fld; fld = fld->next) | |
3443 | { | |
3444 | type_p fld_type = fld->type; | |
3445 | if (fld_type->kind == TYPE_POINTER) | |
3446 | { | |
3447 | type_p pointed_to_type = fld_type->u.p; | |
3448 | if (union_or_struct_p (pointed_to_type)) | |
9aa54cc9 | 3449 | write_user_func_for_structure_ptr (d->of, pointed_to_type, w); |
0823efed DN |
3450 | } |
3451 | else if (union_or_struct_p (fld_type)) | |
9aa54cc9 | 3452 | write_user_func_for_structure_body (fld_type, w->prefix, d); |
0823efed DN |
3453 | } |
3454 | } | |
3455 | ||
3456 | ||
63f5d5b8 | 3457 | /* For S, a structure that's part of ORIG_S write out a routine that: |
17211ab5 GK |
3458 | - Takes a parameter, a void * but actually of type *S |
3459 | - If SEEN_ROUTINE returns nonzero, calls write_types_process_field on each | |
e1b793e7 | 3460 | field of S or its substructures and (in some cases) things |
0823efed | 3461 | that are pointed to by S. */ |
9f313342 | 3462 | |
e2500fed | 3463 | static void |
63f5d5b8 | 3464 | write_func_for_structure (type_p orig_s, type_p s, |
8c80adb7 | 3465 | const struct write_types_data *wtd) |
e2500fed | 3466 | { |
36a5eadd GK |
3467 | const char *chain_next = NULL; |
3468 | const char *chain_prev = NULL; | |
623f8e39 | 3469 | const char *chain_circular = NULL; |
36a5eadd | 3470 | options_p opt; |
17211ab5 | 3471 | struct walk_type_data d; |
3d7aafde | 3472 | |
52a7fb3c | 3473 | if (s->u.s.base_class) |
32fe5271 DM |
3474 | { |
3475 | /* Verify that the base class has a "desc", since otherwise | |
3476 | the traversal hooks there won't attempt to visit fields of | |
3477 | subclasses such as this one. */ | |
3478 | const_type_p ubc = get_ultimate_base_class (s); | |
3479 | if ((!opts_have (ubc->u.s.opt, "user") | |
3480 | && !opts_have (ubc->u.s.opt, "desc"))) | |
3481 | error_at_line (&s->u.s.line, | |
3482 | ("'%s' is a subclass of non-GTY(user) GTY class '%s'" | |
3483 | ", but '%s' lacks a discriminator 'desc' option"), | |
3484 | s->u.s.tag, ubc->u.s.tag, ubc->u.s.tag); | |
3485 | ||
3486 | /* Don't write fns for subclasses, only for the ultimate base class | |
3487 | within an inheritance hierarchy. */ | |
3488 | return; | |
3489 | } | |
52a7fb3c | 3490 | |
17211ab5 | 3491 | memset (&d, 0, sizeof (d)); |
63f5d5b8 | 3492 | d.of = get_output_file_for_structure (s); |
2a22f99c TS |
3493 | |
3494 | bool for_user = false; | |
36a5eadd | 3495 | for (opt = s->u.s.opt; opt; opt = opt->next) |
412dc29d BS |
3496 | if (strcmp (opt->name, "chain_next") == 0 |
3497 | && opt->kind == OPTION_STRING) | |
3498 | chain_next = opt->info.string; | |
3499 | else if (strcmp (opt->name, "chain_prev") == 0 | |
3500 | && opt->kind == OPTION_STRING) | |
3501 | chain_prev = opt->info.string; | |
3502 | else if (strcmp (opt->name, "chain_circular") == 0 | |
3503 | && opt->kind == OPTION_STRING) | |
3504 | chain_circular = opt->info.string; | |
2a22f99c TS |
3505 | else if (strcmp (opt->name, "for_user") == 0) |
3506 | for_user = true; | |
36a5eadd GK |
3507 | if (chain_prev != NULL && chain_next == NULL) |
3508 | error_at_line (&s->u.s.line, "chain_prev without chain_next"); | |
623f8e39 JJ |
3509 | if (chain_circular != NULL && chain_next != NULL) |
3510 | error_at_line (&s->u.s.line, "chain_circular with chain_next"); | |
3511 | if (chain_circular != NULL) | |
3512 | chain_next = chain_circular; | |
36a5eadd | 3513 | |
17211ab5 GK |
3514 | d.process_field = write_types_process_field; |
3515 | d.cookie = wtd; | |
3516 | d.orig_s = orig_s; | |
3517 | d.opt = s->u.s.opt; | |
3518 | d.line = &s->u.s.line; | |
3519 | d.bitmap = s->u.s.bitmap; | |
17211ab5 | 3520 | d.prev_val[0] = "*x"; |
e1b793e7 | 3521 | d.prev_val[1] = "not valid postage"; /* Guarantee an error. */ |
17211ab5 GK |
3522 | d.prev_val[3] = "x"; |
3523 | d.val = "(*x)"; | |
3ad45f7f | 3524 | d.have_this_obj = false; |
17211ab5 GK |
3525 | |
3526 | oprintf (d.of, "\n"); | |
3527 | oprintf (d.of, "void\n"); | |
0823efed | 3528 | write_marker_function_name (d.of, orig_s, wtd->prefix); |
6906ba40 | 3529 | oprintf (d.of, " (void *x_p)\n"); |
0823efed DN |
3530 | oprintf (d.of, "{\n "); |
3531 | write_type_decl (d.of, s); | |
3532 | oprintf (d.of, " * %sx = (", chain_next == NULL ? "const " : ""); | |
3533 | write_type_decl (d.of, s); | |
3534 | oprintf (d.of, " *)x_p;\n"); | |
36a5eadd | 3535 | if (chain_next != NULL) |
0823efed | 3536 | { |
9771b263 DN |
3537 | /* TYPE_USER_STRUCTs should not occur here. These structures |
3538 | are completely handled by user code. */ | |
3539 | gcc_assert (orig_s->kind != TYPE_USER_STRUCT); | |
3540 | ||
0823efed DN |
3541 | oprintf (d.of, " "); |
3542 | write_type_decl (d.of, s); | |
3543 | oprintf (d.of, " * xlimit = x;\n"); | |
3544 | } | |
36a5eadd | 3545 | if (chain_next == NULL) |
17211ab5 GK |
3546 | { |
3547 | oprintf (d.of, " if (%s (x", wtd->marker_routine); | |
3548 | if (wtd->param_prefix) | |
3549 | { | |
3550 | oprintf (d.of, ", x, gt_%s_", wtd->param_prefix); | |
3551 | output_mangled_typename (d.of, orig_s); | |
3552 | } | |
3553 | oprintf (d.of, "))\n"); | |
3554 | } | |
36a5eadd GK |
3555 | else |
3556 | { | |
623f8e39 JJ |
3557 | if (chain_circular != NULL) |
3558 | oprintf (d.of, " if (!%s (xlimit", wtd->marker_routine); | |
3559 | else | |
3560 | oprintf (d.of, " while (%s (xlimit", wtd->marker_routine); | |
17211ab5 GK |
3561 | if (wtd->param_prefix) |
3562 | { | |
3563 | oprintf (d.of, ", xlimit, gt_%s_", wtd->param_prefix); | |
3564 | output_mangled_typename (d.of, orig_s); | |
3565 | } | |
3566 | oprintf (d.of, "))\n"); | |
623f8e39 JJ |
3567 | if (chain_circular != NULL) |
3568 | oprintf (d.of, " return;\n do\n"); | |
36365906 | 3569 | |
17211ab5 GK |
3570 | oprintf (d.of, " xlimit = ("); |
3571 | d.prev_val[2] = "*xlimit"; | |
3572 | output_escaped_param (&d, chain_next, "chain_next"); | |
3573 | oprintf (d.of, ");\n"); | |
36a5eadd GK |
3574 | if (chain_prev != NULL) |
3575 | { | |
17211ab5 GK |
3576 | oprintf (d.of, " if (x != xlimit)\n"); |
3577 | oprintf (d.of, " for (;;)\n"); | |
3578 | oprintf (d.of, " {\n"); | |
3579 | oprintf (d.of, " %s %s * const xprev = (", | |
36a5eadd | 3580 | s->kind == TYPE_UNION ? "union" : "struct", s->u.s.tag); |
3d7aafde | 3581 | |
17211ab5 GK |
3582 | d.prev_val[2] = "*x"; |
3583 | output_escaped_param (&d, chain_prev, "chain_prev"); | |
3584 | oprintf (d.of, ");\n"); | |
3585 | oprintf (d.of, " if (xprev == NULL) break;\n"); | |
3586 | oprintf (d.of, " x = xprev;\n"); | |
e1b793e7 | 3587 | oprintf (d.of, " (void) %s (xprev", wtd->marker_routine); |
17211ab5 GK |
3588 | if (wtd->param_prefix) |
3589 | { | |
3590 | oprintf (d.of, ", xprev, gt_%s_", wtd->param_prefix); | |
3591 | output_mangled_typename (d.of, orig_s); | |
3592 | } | |
3593 | oprintf (d.of, ");\n"); | |
3594 | oprintf (d.of, " }\n"); | |
36a5eadd | 3595 | } |
623f8e39 JJ |
3596 | if (chain_circular != NULL) |
3597 | { | |
3598 | oprintf (d.of, " while (%s (xlimit", wtd->marker_routine); | |
3599 | if (wtd->param_prefix) | |
3600 | { | |
3601 | oprintf (d.of, ", xlimit, gt_%s_", wtd->param_prefix); | |
3602 | output_mangled_typename (d.of, orig_s); | |
623f8e39 JJ |
3603 | } |
3604 | oprintf (d.of, "));\n"); | |
623f8e39 JJ |
3605 | oprintf (d.of, " do\n"); |
3606 | } | |
3607 | else | |
3608 | oprintf (d.of, " while (x != xlimit)\n"); | |
36a5eadd | 3609 | } |
17211ab5 | 3610 | oprintf (d.of, " {\n"); |
313465bb | 3611 | |
17211ab5 GK |
3612 | d.prev_val[2] = "*x"; |
3613 | d.indent = 6; | |
0823efed DN |
3614 | if (orig_s->kind != TYPE_USER_STRUCT) |
3615 | walk_type (s, &d); | |
3616 | else | |
3617 | { | |
3618 | /* User structures have no fields to walk. Simply generate a call | |
3619 | to the user-provided structure marker. */ | |
3620 | oprintf (d.of, "%*sgt_%sx (x);\n", d.indent, "", wtd->prefix); | |
3621 | } | |
3d7aafde | 3622 | |
36a5eadd GK |
3623 | if (chain_next != NULL) |
3624 | { | |
17211ab5 GK |
3625 | oprintf (d.of, " x = ("); |
3626 | output_escaped_param (&d, chain_next, "chain_next"); | |
3627 | oprintf (d.of, ");\n"); | |
36a5eadd GK |
3628 | } |
3629 | ||
17211ab5 | 3630 | oprintf (d.of, " }\n"); |
623f8e39 JJ |
3631 | if (chain_circular != NULL) |
3632 | oprintf (d.of, " while (x != xlimit);\n"); | |
17211ab5 | 3633 | oprintf (d.of, "}\n"); |
0823efed DN |
3634 | |
3635 | if (orig_s->kind == TYPE_USER_STRUCT) | |
9aa54cc9 | 3636 | write_user_marking_functions (orig_s, wtd, &d); |
2a22f99c TS |
3637 | |
3638 | if (for_user) | |
3639 | { | |
3640 | write_user_func_for_structure_body (orig_s, wtd->prefix, &d); | |
3641 | write_user_func_for_structure_ptr (d.of, orig_s, wtd); | |
3642 | } | |
e2500fed | 3643 | } |
9f313342 | 3644 | |
0823efed | 3645 | |
9f313342 | 3646 | /* Write out marker routines for STRUCTURES and PARAM_STRUCTS. */ |
e2500fed GK |
3647 | |
3648 | static void | |
63f5d5b8 | 3649 | write_types (outf_p output_header, type_p structures, |
3d7aafde | 3650 | const struct write_types_data *wtd) |
e2500fed | 3651 | { |
1d32bbcd | 3652 | int nbfun = 0; /* Count the emitted functions. */ |
e2500fed | 3653 | type_p s; |
3d7aafde | 3654 | |
0182d016 | 3655 | oprintf (output_header, "\n/* %s*/\n", wtd->comment); |
0823efed | 3656 | |
c802b1cf BS |
3657 | /* We first emit the macros and the declarations. Functions' code is |
3658 | emitted afterwards. This is needed in plugin mode. */ | |
0823efed | 3659 | oprintf (output_header, "/* Macros and declarations. */\n"); |
e2500fed | 3660 | for (s = structures; s; s = s->next) |
52a7fb3c DM |
3661 | /* Do not emit handlers for derived classes; we only ever deal with |
3662 | the ultimate base class within an inheritance hierarchy. */ | |
3663 | if ((s->gc_used == GC_POINTED_TO || s->gc_used == GC_MAYBE_POINTED_TO) | |
3664 | && !s->u.s.base_class) | |
e2500fed GK |
3665 | { |
3666 | options_p opt; | |
3d7aafde | 3667 | |
e1b793e7 | 3668 | if (s->gc_used == GC_MAYBE_POINTED_TO && s->u.s.line.file == NULL) |
e2500fed GK |
3669 | continue; |
3670 | ||
0823efed DN |
3671 | const char *s_id_for_tag = filter_type_name (s->u.s.tag); |
3672 | ||
0182d016 BS |
3673 | oprintf (output_header, "#define gt_%s_", wtd->prefix); |
3674 | output_mangled_typename (output_header, s); | |
3675 | oprintf (output_header, "(X) do { \\\n"); | |
3676 | oprintf (output_header, | |
3d7aafde | 3677 | " if (X != NULL) gt_%sx_%s (X);\\\n", wtd->prefix, |
0823efed | 3678 | s_id_for_tag); |
e1b793e7 | 3679 | oprintf (output_header, " } while (0)\n"); |
3d7aafde | 3680 | |
e2500fed | 3681 | for (opt = s->u.s.opt; opt; opt = opt->next) |
412dc29d BS |
3682 | if (strcmp (opt->name, "ptr_alias") == 0 |
3683 | && opt->kind == OPTION_TYPE) | |
e2500fed | 3684 | { |
412dc29d | 3685 | const_type_p const t = (const_type_p) opt->info.type; |
3d7aafde | 3686 | if (t->kind == TYPE_STRUCT |
e1b793e7 | 3687 | || t->kind == TYPE_UNION || t->kind == TYPE_LANG_STRUCT) |
0823efed DN |
3688 | { |
3689 | const char *t_id_for_tag = filter_type_name (t->u.s.tag); | |
3690 | oprintf (output_header, | |
3691 | "#define gt_%sx_%s gt_%sx_%s\n", | |
3692 | wtd->prefix, s->u.s.tag, wtd->prefix, t_id_for_tag); | |
3693 | if (t_id_for_tag != t->u.s.tag) | |
c3284718 | 3694 | free (CONST_CAST (char *, t_id_for_tag)); |
0823efed | 3695 | } |
e2500fed | 3696 | else |
3d7aafde | 3697 | error_at_line (&s->u.s.line, |
e2500fed GK |
3698 | "structure alias is not a structure"); |
3699 | break; | |
3700 | } | |
3701 | if (opt) | |
3702 | continue; | |
3703 | ||
3704 | /* Declare the marker procedure only once. */ | |
0182d016 | 3705 | oprintf (output_header, |
3d7aafde | 3706 | "extern void gt_%sx_%s (void *);\n", |
0823efed DN |
3707 | wtd->prefix, s_id_for_tag); |
3708 | ||
3709 | if (s_id_for_tag != s->u.s.tag) | |
c3284718 | 3710 | free (CONST_CAST (char *, s_id_for_tag)); |
3d7aafde | 3711 | |
e2500fed GK |
3712 | if (s->u.s.line.file == NULL) |
3713 | { | |
3d7aafde | 3714 | fprintf (stderr, "warning: structure `%s' used but not defined\n", |
e2500fed GK |
3715 | s->u.s.tag); |
3716 | continue; | |
3717 | } | |
e2500fed GK |
3718 | } |
3719 | ||
b8698a0f | 3720 | /* At last we emit the functions code. */ |
c802b1cf BS |
3721 | oprintf (output_header, "\n/* functions code */\n"); |
3722 | for (s = structures; s; s = s->next) | |
e1b793e7 | 3723 | if (s->gc_used == GC_POINTED_TO || s->gc_used == GC_MAYBE_POINTED_TO) |
c802b1cf BS |
3724 | { |
3725 | options_p opt; | |
3d7aafde | 3726 | |
e1b793e7 | 3727 | if (s->gc_used == GC_MAYBE_POINTED_TO && s->u.s.line.file == NULL) |
c802b1cf BS |
3728 | continue; |
3729 | for (opt = s->u.s.opt; opt; opt = opt->next) | |
3730 | if (strcmp (opt->name, "ptr_alias") == 0) | |
3731 | break; | |
3732 | if (opt) | |
3733 | continue; | |
b8698a0f | 3734 | |
c802b1cf BS |
3735 | if (s->kind == TYPE_LANG_STRUCT) |
3736 | { | |
3737 | type_p ss; | |
3738 | for (ss = s->u.s.lang_struct; ss; ss = ss->next) | |
1d32bbcd BS |
3739 | { |
3740 | nbfun++; | |
3741 | DBGPRINTF ("writing func #%d lang_struct ss @ %p '%s'", | |
3742 | nbfun, (void*) ss, ss->u.s.tag); | |
63f5d5b8 | 3743 | write_func_for_structure (s, ss, wtd); |
1d32bbcd | 3744 | } |
c802b1cf BS |
3745 | } |
3746 | else | |
1d32bbcd BS |
3747 | { |
3748 | nbfun++; | |
3749 | DBGPRINTF ("writing func #%d struct s @ %p '%s'", | |
3750 | nbfun, (void*) s, s->u.s.tag); | |
63f5d5b8 | 3751 | write_func_for_structure (s, s, wtd); |
1d32bbcd | 3752 | } |
c802b1cf | 3753 | } |
1d32bbcd BS |
3754 | else |
3755 | { | |
3756 | /* Structure s is not possibly pointed to, so can be ignored. */ | |
3757 | DBGPRINTF ("ignored s @ %p '%s' gc_used#%d", | |
3758 | (void*)s, s->u.s.tag, | |
3759 | (int) s->gc_used); | |
3760 | } | |
3761 | ||
1d32bbcd BS |
3762 | if (verbosity_level >= 2) |
3763 | printf ("%s emitted %d routines for %s\n", | |
3764 | progname, nbfun, wtd->comment); | |
17211ab5 GK |
3765 | } |
3766 | ||
e1b793e7 | 3767 | static const struct write_types_data ggc_wtd = { |
17211ab5 | 3768 | "ggc_m", NULL, "ggc_mark", "ggc_test_and_set_mark", NULL, |
8d6419b2 | 3769 | "GC marker procedures. ", |
36365906 | 3770 | WTK_GGC |
17211ab5 GK |
3771 | }; |
3772 | ||
e1b793e7 | 3773 | static const struct write_types_data pch_wtd = { |
17211ab5 GK |
3774 | "pch_n", "pch_p", "gt_pch_note_object", "gt_pch_note_object", |
3775 | "gt_pch_note_reorder", | |
8d6419b2 | 3776 | "PCH type-walking procedures. ", |
36365906 | 3777 | WTK_PCH |
17211ab5 GK |
3778 | }; |
3779 | ||
3780 | /* Write out the local pointer-walking routines. */ | |
3781 | ||
0823efed DN |
3782 | /* process_field routine for local pointer-walking for user-callable |
3783 | routines. The difference between this and | |
3784 | write_types_local_process_field is that, in this case, we do not | |
3785 | need to check whether the given pointer matches the address of the | |
3786 | parent structure. This check was already generated by the call | |
3787 | to gt_pch_nx in the main gt_pch_p_*() function that is calling | |
3788 | this code. */ | |
3789 | ||
3790 | static void | |
3791 | write_types_local_user_process_field (type_p f, const struct walk_type_data *d) | |
3792 | { | |
3793 | switch (f->kind) | |
3794 | { | |
3795 | case TYPE_POINTER: | |
3796 | case TYPE_STRUCT: | |
3797 | case TYPE_UNION: | |
3798 | case TYPE_LANG_STRUCT: | |
0823efed DN |
3799 | case TYPE_STRING: |
3800 | oprintf (d->of, "%*s op (&(%s), cookie);\n", d->indent, "", d->val); | |
3801 | break; | |
3802 | ||
3803 | case TYPE_USER_STRUCT: | |
3804 | if (d->in_ptr_field) | |
3805 | oprintf (d->of, "%*s op (&(%s), cookie);\n", d->indent, "", d->val); | |
3806 | else | |
3807 | oprintf (d->of, "%*s gt_pch_nx (&(%s), op, cookie);\n", | |
3808 | d->indent, "", d->val); | |
3809 | break; | |
3810 | ||
3811 | case TYPE_SCALAR: | |
3812 | break; | |
3813 | ||
9771b263 DN |
3814 | case TYPE_ARRAY: |
3815 | case TYPE_NONE: | |
3816 | case TYPE_UNDEFINED: | |
0823efed DN |
3817 | gcc_unreachable (); |
3818 | } | |
3819 | } | |
3820 | ||
3821 | ||
3822 | /* Write a function to PCH walk all the fields of type S on OF. | |
3823 | D contains data needed by walk_type to recurse into the fields of S. */ | |
3824 | ||
3825 | static void | |
3826 | write_pch_user_walking_for_structure_body (type_p s, struct walk_type_data *d) | |
3827 | { | |
3828 | oprintf (d->of, "\nvoid\n"); | |
3829 | oprintf (d->of, "gt_pch_nx ("); | |
3830 | write_type_decl (d->of, s); | |
3831 | oprintf (d->of, "* x ATTRIBUTE_UNUSED,\n" | |
3832 | "\tATTRIBUTE_UNUSED gt_pointer_operator op,\n" | |
3833 | "\tATTRIBUTE_UNUSED void *cookie)\n"); | |
3834 | oprintf (d->of, "{\n"); | |
3835 | d->val = "(*x)"; | |
3836 | d->indent = 2; | |
3837 | d->process_field = write_types_local_user_process_field; | |
3838 | walk_type (s, d); | |
3839 | oprintf (d->of, "}\n"); | |
3840 | } | |
3841 | ||
3842 | ||
3843 | /* Emit the user-callable functions needed to mark all the types used | |
3844 | by the user structure S. PREFIX is the prefix to use to | |
3845 | distinguish ggc and pch markers. CHAIN_NEXT is set if S has the | |
3846 | chain_next option defined. D contains data needed to pass to | |
3847 | walk_type when traversing the fields of a type. | |
3848 | ||
3849 | For every type T referenced by S, two routines are generated: one | |
3850 | that takes 'T *', marks the pointer and calls the second routine, | |
3851 | which just marks the fields of T. */ | |
3852 | ||
3853 | static void | |
3854 | write_pch_user_walking_functions (type_p s, struct walk_type_data *d) | |
3855 | { | |
3856 | gcc_assert (s->kind == TYPE_USER_STRUCT); | |
3857 | ||
3858 | for (pair_p fld = s->u.s.fields; fld; fld = fld->next) | |
3859 | { | |
3860 | type_p fld_type = fld->type; | |
3861 | if (union_or_struct_p (fld_type)) | |
3862 | write_pch_user_walking_for_structure_body (fld_type, d); | |
3863 | } | |
3864 | } | |
3865 | ||
3866 | ||
17211ab5 GK |
3867 | /* process_field routine for local pointer-walking. */ |
3868 | ||
3869 | static void | |
3d7aafde | 3870 | write_types_local_process_field (type_p f, const struct walk_type_data *d) |
17211ab5 | 3871 | { |
3ad45f7f | 3872 | gcc_assert (d->have_this_obj); |
17211ab5 GK |
3873 | switch (f->kind) |
3874 | { | |
3875 | case TYPE_POINTER: | |
3876 | case TYPE_STRUCT: | |
3877 | case TYPE_UNION: | |
3878 | case TYPE_LANG_STRUCT: | |
17211ab5 GK |
3879 | case TYPE_STRING: |
3880 | oprintf (d->of, "%*sif ((void *)(%s) == this_obj)\n", d->indent, "", | |
3881 | d->prev_val[3]); | |
3882 | oprintf (d->of, "%*s op (&(%s), cookie);\n", d->indent, "", d->val); | |
3883 | break; | |
3884 | ||
0823efed DN |
3885 | case TYPE_USER_STRUCT: |
3886 | oprintf (d->of, "%*sif ((void *)(%s) == this_obj)\n", d->indent, "", | |
3887 | d->prev_val[3]); | |
3888 | if (d->in_ptr_field) | |
3889 | oprintf (d->of, "%*s op (&(%s), cookie);\n", d->indent, "", d->val); | |
3890 | else | |
3891 | oprintf (d->of, "%*s gt_pch_nx (&(%s), op, cookie);\n", | |
3892 | d->indent, "", d->val); | |
3893 | break; | |
3894 | ||
17211ab5 GK |
3895 | case TYPE_SCALAR: |
3896 | break; | |
3d7aafde | 3897 | |
9771b263 DN |
3898 | case TYPE_ARRAY: |
3899 | case TYPE_NONE: | |
3900 | case TYPE_UNDEFINED: | |
b2d59f6f | 3901 | gcc_unreachable (); |
17211ab5 GK |
3902 | } |
3903 | } | |
3904 | ||
0823efed | 3905 | |
17211ab5 GK |
3906 | /* For S, a structure that's part of ORIG_S, and using parameters |
3907 | PARAM, write out a routine that: | |
3908 | - Is of type gt_note_pointers | |
d8044160 | 3909 | - Calls PROCESS_FIELD on each field of S or its substructures. |
17211ab5 GK |
3910 | */ |
3911 | ||
3912 | static void | |
63f5d5b8 | 3913 | write_local_func_for_structure (const_type_p orig_s, type_p s) |
17211ab5 | 3914 | { |
17211ab5 | 3915 | struct walk_type_data d; |
3d7aafde | 3916 | |
52a7fb3c DM |
3917 | /* Don't write fns for subclasses, only for the ultimate base class |
3918 | within an inheritance hierarchy. */ | |
3919 | if (s->u.s.base_class) | |
3920 | return; | |
3921 | ||
17211ab5 | 3922 | memset (&d, 0, sizeof (d)); |
63f5d5b8 | 3923 | d.of = get_output_file_for_structure (s); |
17211ab5 GK |
3924 | d.process_field = write_types_local_process_field; |
3925 | d.opt = s->u.s.opt; | |
3926 | d.line = &s->u.s.line; | |
3927 | d.bitmap = s->u.s.bitmap; | |
17211ab5 | 3928 | d.prev_val[0] = d.prev_val[2] = "*x"; |
e1b793e7 | 3929 | d.prev_val[1] = "not valid postage"; /* Guarantee an error. */ |
17211ab5 GK |
3930 | d.prev_val[3] = "x"; |
3931 | d.val = "(*x)"; | |
d8044160 | 3932 | d.fn_wants_lvalue = true; |
17211ab5 GK |
3933 | |
3934 | oprintf (d.of, "\n"); | |
3935 | oprintf (d.of, "void\n"); | |
3936 | oprintf (d.of, "gt_pch_p_"); | |
3937 | output_mangled_typename (d.of, orig_s); | |
e18476eb BI |
3938 | oprintf (d.of, " (ATTRIBUTE_UNUSED void *this_obj,\n" |
3939 | "\tvoid *x_p,\n" | |
3940 | "\tATTRIBUTE_UNUSED gt_pointer_operator op,\n" | |
3941 | "\tATTRIBUTE_UNUSED void *cookie)\n"); | |
17211ab5 | 3942 | oprintf (d.of, "{\n"); |
0823efed | 3943 | oprintf (d.of, " %s %s * x ATTRIBUTE_UNUSED = (%s %s *)x_p;\n", |
17211ab5 GK |
3944 | s->kind == TYPE_UNION ? "union" : "struct", s->u.s.tag, |
3945 | s->kind == TYPE_UNION ? "union" : "struct", s->u.s.tag); | |
3946 | d.indent = 2; | |
3ad45f7f | 3947 | d.have_this_obj = true; |
0823efed DN |
3948 | |
3949 | if (s->kind != TYPE_USER_STRUCT) | |
3950 | walk_type (s, &d); | |
3951 | else | |
3952 | { | |
3953 | /* User structures have no fields to walk. Simply generate a | |
3954 | call to the user-provided PCH walker. */ | |
3955 | oprintf (d.of, "%*sif ((void *)(%s) == this_obj)\n", d.indent, "", | |
3956 | d.prev_val[3]); | |
3957 | oprintf (d.of, "%*s gt_pch_nx (&(%s), op, cookie);\n", | |
3958 | d.indent, "", d.val); | |
3959 | } | |
3960 | ||
17211ab5 | 3961 | oprintf (d.of, "}\n"); |
0823efed DN |
3962 | |
3963 | /* Write user-callable entry points for the PCH walking routines. */ | |
3964 | if (orig_s->kind == TYPE_USER_STRUCT) | |
3965 | write_pch_user_walking_functions (s, &d); | |
2a22f99c TS |
3966 | |
3967 | for (options_p o = s->u.s.opt; o; o = o->next) | |
3968 | if (strcmp (o->name, "for_user") == 0) | |
3969 | { | |
3970 | write_pch_user_walking_for_structure_body (s, &d); | |
3971 | break; | |
3972 | } | |
17211ab5 GK |
3973 | } |
3974 | ||
3975 | /* Write out local marker routines for STRUCTURES and PARAM_STRUCTS. */ | |
3976 | ||
3977 | static void | |
63f5d5b8 | 3978 | write_local (outf_p output_header, type_p structures) |
17211ab5 GK |
3979 | { |
3980 | type_p s; | |
3d7aafde | 3981 | |
b8698a0f | 3982 | if (!output_header) |
bd117bb6 | 3983 | return; |
0823efed | 3984 | |
0182d016 | 3985 | oprintf (output_header, "\n/* Local pointer-walking routines. */\n"); |
17211ab5 | 3986 | for (s = structures; s; s = s->next) |
e1b793e7 | 3987 | if (s->gc_used == GC_POINTED_TO || s->gc_used == GC_MAYBE_POINTED_TO) |
17211ab5 GK |
3988 | { |
3989 | options_p opt; | |
3d7aafde | 3990 | |
17211ab5 GK |
3991 | if (s->u.s.line.file == NULL) |
3992 | continue; | |
412dc29d BS |
3993 | for (opt = s->u.s.opt; opt; opt = opt->next) |
3994 | if (strcmp (opt->name, "ptr_alias") == 0 | |
3995 | && opt->kind == OPTION_TYPE) | |
17211ab5 | 3996 | { |
412dc29d | 3997 | const_type_p const t = (const_type_p) opt->info.type; |
3d7aafde | 3998 | if (t->kind == TYPE_STRUCT |
e1b793e7 | 3999 | || t->kind == TYPE_UNION || t->kind == TYPE_LANG_STRUCT) |
17211ab5 | 4000 | { |
0182d016 BS |
4001 | oprintf (output_header, "#define gt_pch_p_"); |
4002 | output_mangled_typename (output_header, s); | |
4003 | oprintf (output_header, " gt_pch_p_"); | |
4004 | output_mangled_typename (output_header, t); | |
4005 | oprintf (output_header, "\n"); | |
17211ab5 GK |
4006 | } |
4007 | else | |
3d7aafde | 4008 | error_at_line (&s->u.s.line, |
17211ab5 GK |
4009 | "structure alias is not a structure"); |
4010 | break; | |
4011 | } | |
4012 | if (opt) | |
4013 | continue; | |
4014 | ||
4015 | /* Declare the marker procedure only once. */ | |
0182d016 BS |
4016 | oprintf (output_header, "extern void gt_pch_p_"); |
4017 | output_mangled_typename (output_header, s); | |
4018 | oprintf (output_header, | |
e1b793e7 | 4019 | "\n (void *, void *, gt_pointer_operator, void *);\n"); |
3d7aafde | 4020 | |
17211ab5 GK |
4021 | if (s->kind == TYPE_LANG_STRUCT) |
4022 | { | |
4023 | type_p ss; | |
4024 | for (ss = s->u.s.lang_struct; ss; ss = ss->next) | |
63f5d5b8 | 4025 | write_local_func_for_structure (s, ss); |
17211ab5 GK |
4026 | } |
4027 | else | |
63f5d5b8 | 4028 | write_local_func_for_structure (s, s); |
36a5eadd GK |
4029 | } |
4030 | } | |
4031 | ||
a9429e29 LB |
4032 | /* Nonzero if S is a type for which typed GC allocators should be output. */ |
4033 | ||
4034 | #define USED_BY_TYPED_GC_P(s) \ | |
0823efed DN |
4035 | ((s->kind == TYPE_POINTER \ |
4036 | && (s->u.p->gc_used == GC_POINTED_TO \ | |
4037 | || s->u.p->gc_used == GC_USED)) \ | |
4038 | || (union_or_struct_p (s) \ | |
4039 | && ((s)->gc_used == GC_POINTED_TO \ | |
4040 | || ((s)->gc_used == GC_MAYBE_POINTED_TO \ | |
4041 | && s->u.s.line.file != NULL) \ | |
4042 | || ((s)->gc_used == GC_USED \ | |
52a7fb3c DM |
4043 | && strncmp (s->u.s.tag, "anonymous", strlen ("anonymous"))) \ |
4044 | || (s->u.s.base_class && opts_have (s->u.s.opt, "tag"))))) | |
4045 | ||
a9429e29 LB |
4046 | |
4047 | ||
17211ab5 GK |
4048 | /* Might T contain any non-pointer elements? */ |
4049 | ||
4050 | static int | |
3d7aafde | 4051 | contains_scalar_p (type_p t) |
17211ab5 GK |
4052 | { |
4053 | switch (t->kind) | |
4054 | { | |
4055 | case TYPE_STRING: | |
4056 | case TYPE_POINTER: | |
4057 | return 0; | |
4058 | case TYPE_ARRAY: | |
4059 | return contains_scalar_p (t->u.a.p); | |
9771b263 DN |
4060 | case TYPE_USER_STRUCT: |
4061 | /* User-marked structures will typically contain pointers. */ | |
4062 | return 0; | |
17211ab5 GK |
4063 | default: |
4064 | /* Could also check for structures that have no non-pointer | |
e1b793e7 | 4065 | fields, but there aren't enough of those to worry about. */ |
17211ab5 GK |
4066 | return 1; |
4067 | } | |
4068 | } | |
36a5eadd | 4069 | |
14c4815e | 4070 | /* Mangle INPF and print it to F. */ |
9f313342 | 4071 | |
e2500fed | 4072 | static void |
14c4815e | 4073 | put_mangled_filename (outf_p f, const input_file *inpf) |
e2500fed | 4074 | { |
14c4815e BS |
4075 | /* The call to get_output_file_name may indirectly update fn since |
4076 | get_output_file_with_visibility caches its result inside, so we | |
4077 | need the CONST_CAST. */ | |
4078 | const char *name = get_output_file_name (CONST_CAST (input_file*, inpf)); | |
b8698a0f | 4079 | if (!f || !name) |
bd117bb6 | 4080 | return; |
e2500fed | 4081 | for (; *name != 0; name++) |
1f8e4682 | 4082 | if (ISALNUM (*name)) |
e03856fe | 4083 | oprintf (f, "%c", *name); |
e2500fed | 4084 | else |
e03856fe | 4085 | oprintf (f, "%c", '_'); |
e2500fed GK |
4086 | } |
4087 | ||
9f313342 GK |
4088 | /* Finish off the currently-created root tables in FLP. PFX, TNAME, |
4089 | LASTNAME, and NAME are all strings to insert in various places in | |
4090 | the resulting code. */ | |
4091 | ||
e2500fed | 4092 | static void |
3d7aafde AJ |
4093 | finish_root_table (struct flist *flp, const char *pfx, const char *lastname, |
4094 | const char *tname, const char *name) | |
e2500fed GK |
4095 | { |
4096 | struct flist *fli2; | |
3d7aafde | 4097 | |
e2500fed GK |
4098 | for (fli2 = flp; fli2; fli2 = fli2->next) |
4099 | if (fli2->started_p) | |
4100 | { | |
e03856fe GK |
4101 | oprintf (fli2->f, " %s\n", lastname); |
4102 | oprintf (fli2->f, "};\n\n"); | |
e2500fed GK |
4103 | } |
4104 | ||
bd117bb6 | 4105 | for (fli2 = flp; fli2 && base_files; fli2 = fli2->next) |
e2500fed GK |
4106 | if (fli2->started_p) |
4107 | { | |
14c4815e | 4108 | lang_bitmap bitmap = get_lang_bitmap (fli2->file); |
e2500fed GK |
4109 | int fnum; |
4110 | ||
4111 | for (fnum = 0; bitmap != 0; fnum++, bitmap >>= 1) | |
4112 | if (bitmap & 1) | |
4113 | { | |
e03856fe | 4114 | oprintf (base_files[fnum], |
e1b793e7 | 4115 | "extern const struct %s gt_%s_", tname, pfx); |
14c4815e | 4116 | put_mangled_filename (base_files[fnum], fli2->file); |
e03856fe | 4117 | oprintf (base_files[fnum], "[];\n"); |
e2500fed GK |
4118 | } |
4119 | } | |
3d7aafde | 4120 | |
17211ab5 GK |
4121 | { |
4122 | size_t fnum; | |
bd117bb6 | 4123 | for (fnum = 0; base_files && fnum < num_lang_dirs; fnum++) |
e1b793e7 BS |
4124 | oprintf (base_files[fnum], |
4125 | "EXPORTED_CONST struct %s * const %s[] = {\n", tname, name); | |
17211ab5 | 4126 | } |
3d7aafde | 4127 | |
e2500fed GK |
4128 | |
4129 | for (fli2 = flp; fli2; fli2 = fli2->next) | |
4130 | if (fli2->started_p) | |
4131 | { | |
14c4815e | 4132 | lang_bitmap bitmap = get_lang_bitmap (fli2->file); |
e2500fed GK |
4133 | int fnum; |
4134 | ||
4135 | fli2->started_p = 0; | |
4136 | ||
bd117bb6 | 4137 | for (fnum = 0; base_files && bitmap != 0; fnum++, bitmap >>= 1) |
e2500fed GK |
4138 | if (bitmap & 1) |
4139 | { | |
17211ab5 | 4140 | oprintf (base_files[fnum], " gt_%s_", pfx); |
14c4815e | 4141 | put_mangled_filename (base_files[fnum], fli2->file); |
e03856fe | 4142 | oprintf (base_files[fnum], ",\n"); |
e2500fed GK |
4143 | } |
4144 | } | |
4145 | ||
4146 | { | |
17211ab5 | 4147 | size_t fnum; |
bd117bb6 | 4148 | for (fnum = 0; base_files && fnum < num_lang_dirs; fnum++) |
17211ab5 GK |
4149 | { |
4150 | oprintf (base_files[fnum], " NULL\n"); | |
4151 | oprintf (base_files[fnum], "};\n"); | |
4152 | } | |
e2500fed GK |
4153 | } |
4154 | } | |
4155 | ||
aebf76a2 TS |
4156 | /* Finish off the created gt_clear_caches_file_c functions. */ |
4157 | ||
4158 | static void | |
4159 | finish_cache_funcs (flist *flp) | |
4160 | { | |
4161 | struct flist *fli2; | |
4162 | ||
4163 | for (fli2 = flp; fli2; fli2 = fli2->next) | |
4164 | if (fli2->started_p) | |
4165 | { | |
4166 | oprintf (fli2->f, "}\n\n"); | |
4167 | } | |
4168 | ||
4169 | for (fli2 = flp; fli2 && base_files; fli2 = fli2->next) | |
4170 | if (fli2->started_p) | |
4171 | { | |
4172 | lang_bitmap bitmap = get_lang_bitmap (fli2->file); | |
4173 | int fnum; | |
4174 | ||
4175 | for (fnum = 0; bitmap != 0; fnum++, bitmap >>= 1) | |
4176 | if (bitmap & 1) | |
4177 | { | |
4178 | oprintf (base_files[fnum], "extern void gt_clear_caches_"); | |
4179 | put_mangled_filename (base_files[fnum], fli2->file); | |
4180 | oprintf (base_files[fnum], " ();\n"); | |
4181 | } | |
4182 | } | |
4183 | ||
4184 | for (size_t fnum = 0; base_files && fnum < num_lang_dirs; fnum++) | |
4185 | oprintf (base_files[fnum], "void\ngt_clear_caches ()\n{\n"); | |
4186 | ||
4187 | for (fli2 = flp; fli2; fli2 = fli2->next) | |
4188 | if (fli2->started_p) | |
4189 | { | |
4190 | lang_bitmap bitmap = get_lang_bitmap (fli2->file); | |
4191 | int fnum; | |
4192 | ||
4193 | fli2->started_p = 0; | |
4194 | ||
4195 | for (fnum = 0; base_files && bitmap != 0; fnum++, bitmap >>= 1) | |
4196 | if (bitmap & 1) | |
4197 | { | |
4198 | oprintf (base_files[fnum], " gt_clear_caches_"); | |
4199 | put_mangled_filename (base_files[fnum], fli2->file); | |
4200 | oprintf (base_files[fnum], " ();\n"); | |
4201 | } | |
4202 | } | |
4203 | ||
4204 | for (size_t fnum = 0; base_files && fnum < num_lang_dirs; fnum++) | |
4205 | { | |
4206 | oprintf (base_files[fnum], "}\n"); | |
4207 | } | |
4208 | } | |
4209 | ||
b08e0339 RS |
4210 | /* Write the first three fields (pointer, count and stride) for |
4211 | root NAME to F. V and LINE are as for write_root. | |
4212 | ||
4213 | Return true if the entry could be written; return false on error. */ | |
4214 | ||
4215 | static bool | |
4216 | start_root_entry (outf_p f, pair_p v, const char *name, struct fileloc *line) | |
4217 | { | |
4218 | type_p ap; | |
4219 | ||
4220 | if (!v) | |
4221 | { | |
4222 | error_at_line (line, "`%s' is too complex to be a root", name); | |
4223 | return false; | |
4224 | } | |
4225 | ||
4226 | oprintf (f, " {\n"); | |
4227 | oprintf (f, " &%s,\n", name); | |
4228 | oprintf (f, " 1"); | |
4229 | ||
4230 | for (ap = v->type; ap->kind == TYPE_ARRAY; ap = ap->u.a.p) | |
4231 | if (ap->u.a.len[0]) | |
4232 | oprintf (f, " * (%s)", ap->u.a.len); | |
4233 | else if (ap == v->type) | |
4234 | oprintf (f, " * ARRAY_SIZE (%s)", v->name); | |
4235 | oprintf (f, ",\n"); | |
4236 | oprintf (f, " sizeof (%s", v->name); | |
4237 | for (ap = v->type; ap->kind == TYPE_ARRAY; ap = ap->u.a.p) | |
4238 | oprintf (f, "[0]"); | |
4239 | oprintf (f, "),\n"); | |
4240 | return true; | |
4241 | } | |
4242 | ||
647565f6 RS |
4243 | /* A subroutine of write_root for writing the roots for field FIELD_NAME, |
4244 | which has type FIELD_TYPE. Parameters F to EMIT_PCH are the parameters | |
4245 | of the caller. */ | |
4246 | ||
4247 | static void | |
4248 | write_field_root (outf_p f, pair_p v, type_p type, const char *name, | |
63f5d5b8 | 4249 | int has_length, struct fileloc *line, |
647565f6 RS |
4250 | bool emit_pch, type_p field_type, const char *field_name) |
4251 | { | |
47598145 | 4252 | struct pair newv; |
647565f6 RS |
4253 | /* If the field reference is relative to V, rather than to some |
4254 | subcomponent of V, we can mark any subarrays with a single stride. | |
4255 | We're effectively treating the field as a global variable in its | |
4256 | own right. */ | |
b08e0339 | 4257 | if (v && type == v->type) |
647565f6 | 4258 | { |
647565f6 RS |
4259 | newv = *v; |
4260 | newv.type = field_type; | |
4261 | newv.name = ACONCAT ((v->name, ".", field_name, NULL)); | |
4262 | v = &newv; | |
4263 | } | |
4264 | /* Otherwise, any arrays nested in the structure are too complex to | |
4265 | handle. */ | |
4266 | else if (field_type->kind == TYPE_ARRAY) | |
b08e0339 | 4267 | v = NULL; |
647565f6 | 4268 | write_root (f, v, field_type, ACONCAT ((name, ".", field_name, NULL)), |
63f5d5b8 | 4269 | has_length, line, emit_pch); |
647565f6 RS |
4270 | } |
4271 | ||
9f313342 | 4272 | /* Write out to F the table entry and any marker routines needed to |
b08e0339 RS |
4273 | mark NAME as TYPE. V can be one of three values: |
4274 | ||
f8ed6dc5 JS |
4275 | - null, if NAME is too complex to represent using a single |
4276 | count and stride. In this case, it is an error for NAME to | |
4277 | contain any gc-ed data. | |
b08e0339 | 4278 | |
f8ed6dc5 | 4279 | - the outermost array that contains NAME, if NAME is part of an array. |
b08e0339 | 4280 | |
f8ed6dc5 | 4281 | - the C variable that contains NAME, if NAME is not part of an array. |
b08e0339 RS |
4282 | |
4283 | LINE is the line of the C source that declares the root variable. | |
63f5d5b8 | 4284 | HAS_LENGTH is nonzero iff V was a variable-length array. */ |
9f313342 | 4285 | |
e2500fed | 4286 | static void |
3d7aafde | 4287 | write_root (outf_p f, pair_p v, type_p type, const char *name, int has_length, |
63f5d5b8 | 4288 | struct fileloc *line, bool emit_pch) |
e2500fed GK |
4289 | { |
4290 | switch (type->kind) | |
4291 | { | |
4292 | case TYPE_STRUCT: | |
4293 | { | |
4294 | pair_p fld; | |
4295 | for (fld = type->u.s.fields; fld; fld = fld->next) | |
4296 | { | |
4297 | int skip_p = 0; | |
4298 | const char *desc = NULL; | |
4299 | options_p o; | |
3d7aafde | 4300 | |
e2500fed GK |
4301 | for (o = fld->opt; o; o = o->next) |
4302 | if (strcmp (o->name, "skip") == 0) | |
4303 | skip_p = 1; | |
412dc29d BS |
4304 | else if (strcmp (o->name, "desc") == 0 |
4305 | && o->kind == OPTION_STRING) | |
4306 | desc = o->info.string; | |
e2500fed GK |
4307 | else |
4308 | error_at_line (line, | |
e1b793e7 | 4309 | "field `%s' of global `%s' has unknown option `%s'", |
e2500fed | 4310 | fld->name, name, o->name); |
3d7aafde | 4311 | |
e2500fed GK |
4312 | if (skip_p) |
4313 | continue; | |
4314 | else if (desc && fld->type->kind == TYPE_UNION) | |
4315 | { | |
4316 | pair_p validf = NULL; | |
4317 | pair_p ufld; | |
3d7aafde | 4318 | |
e2500fed GK |
4319 | for (ufld = fld->type->u.s.fields; ufld; ufld = ufld->next) |
4320 | { | |
4321 | const char *tag = NULL; | |
4322 | options_p oo; | |
412dc29d BS |
4323 | for (oo = ufld->opt; oo; oo = oo->next) |
4324 | if (strcmp (oo->name, "tag") == 0 | |
4325 | && oo->kind == OPTION_STRING) | |
4326 | tag = oo->info.string; | |
e2500fed GK |
4327 | if (tag == NULL || strcmp (tag, desc) != 0) |
4328 | continue; | |
4329 | if (validf != NULL) | |
3d7aafde | 4330 | error_at_line (line, |
e1b793e7 | 4331 | "both `%s.%s.%s' and `%s.%s.%s' have tag `%s'", |
e2500fed | 4332 | name, fld->name, validf->name, |
e1b793e7 | 4333 | name, fld->name, ufld->name, tag); |
e2500fed GK |
4334 | validf = ufld; |
4335 | } | |
4336 | if (validf != NULL) | |
63f5d5b8 TS |
4337 | write_field_root (f, v, type, name, 0, line, emit_pch, |
4338 | validf->type, | |
647565f6 RS |
4339 | ACONCAT ((fld->name, ".", |
4340 | validf->name, NULL))); | |
e2500fed GK |
4341 | } |
4342 | else if (desc) | |
3d7aafde | 4343 | error_at_line (line, |
e1b793e7 | 4344 | "global `%s.%s' has `desc' option but is not union", |
e2500fed GK |
4345 | name, fld->name); |
4346 | else | |
63f5d5b8 TS |
4347 | write_field_root (f, v, type, name, 0, line, emit_pch, fld->type, |
4348 | fld->name); | |
e2500fed GK |
4349 | } |
4350 | } | |
4351 | break; | |
4352 | ||
4353 | case TYPE_ARRAY: | |
4354 | { | |
4355 | char *newname; | |
e03856fe | 4356 | newname = xasprintf ("%s[0]", name); |
63f5d5b8 | 4357 | write_root (f, v, type->u.a.p, newname, has_length, line, emit_pch); |
e2500fed GK |
4358 | free (newname); |
4359 | } | |
4360 | break; | |
3d7aafde | 4361 | |
0823efed | 4362 | case TYPE_USER_STRUCT: |
9771b263 DN |
4363 | error_at_line (line, "`%s' must be a pointer type, because it is " |
4364 | "a GC root and its type is marked with GTY((user))", | |
4365 | v->name); | |
0823efed DN |
4366 | break; |
4367 | ||
e2500fed GK |
4368 | case TYPE_POINTER: |
4369 | { | |
32fe5271 | 4370 | const_type_p tp; |
b08e0339 RS |
4371 | |
4372 | if (!start_root_entry (f, v, name, line)) | |
4373 | return; | |
3d7aafde | 4374 | |
e2500fed | 4375 | tp = type->u.p; |
3d7aafde | 4376 | |
0823efed | 4377 | if (!has_length && union_or_struct_p (tp)) |
e2500fed | 4378 | { |
32fe5271 | 4379 | tp = get_ultimate_base_class (tp); |
0823efed DN |
4380 | const char *id_for_tag = filter_type_name (tp->u.s.tag); |
4381 | oprintf (f, " >_ggc_mx_%s,\n", id_for_tag); | |
99be7084 | 4382 | if (emit_pch) |
0823efed | 4383 | oprintf (f, " >_pch_nx_%s", id_for_tag); |
99be7084 BS |
4384 | else |
4385 | oprintf (f, " NULL"); | |
0823efed | 4386 | if (id_for_tag != tp->u.s.tag) |
c3284718 | 4387 | free (CONST_CAST (char *, id_for_tag)); |
e2500fed | 4388 | } |
e2500fed | 4389 | else if (has_length |
0823efed | 4390 | && (tp->kind == TYPE_POINTER || union_or_struct_p (tp))) |
e2500fed | 4391 | { |
17211ab5 | 4392 | oprintf (f, " >_ggc_ma_%s,\n", name); |
99be7084 BS |
4393 | if (emit_pch) |
4394 | oprintf (f, " >_pch_na_%s", name); | |
4395 | else | |
4396 | oprintf (f, " NULL"); | |
e2500fed GK |
4397 | } |
4398 | else | |
4399 | { | |
3d7aafde | 4400 | error_at_line (line, |
e2500fed GK |
4401 | "global `%s' is pointer to unimplemented type", |
4402 | name); | |
4403 | } | |
e03856fe | 4404 | oprintf (f, "\n },\n"); |
e2500fed GK |
4405 | } |
4406 | break; | |
4407 | ||
e2500fed | 4408 | case TYPE_STRING: |
17211ab5 | 4409 | { |
b08e0339 RS |
4410 | if (!start_root_entry (f, v, name, line)) |
4411 | return; | |
4412 | ||
dae4174e | 4413 | oprintf (f, " (gt_pointer_walker) >_ggc_m_S,\n"); |
f099d360 | 4414 | oprintf (f, " (gt_pointer_walker) >_pch_n_S\n"); |
17211ab5 GK |
4415 | oprintf (f, " },\n"); |
4416 | } | |
4417 | break; | |
3d7aafde | 4418 | |
17211ab5 | 4419 | case TYPE_SCALAR: |
e2500fed | 4420 | break; |
3d7aafde | 4421 | |
9771b263 DN |
4422 | case TYPE_NONE: |
4423 | case TYPE_UNDEFINED: | |
4424 | case TYPE_UNION: | |
4425 | case TYPE_LANG_STRUCT: | |
e1b793e7 | 4426 | error_at_line (line, "global `%s' is unimplemented type", name); |
e2500fed GK |
4427 | } |
4428 | } | |
4429 | ||
17211ab5 GK |
4430 | /* This generates a routine to walk an array. */ |
4431 | ||
4432 | static void | |
3d7aafde | 4433 | write_array (outf_p f, pair_p v, const struct write_types_data *wtd) |
17211ab5 GK |
4434 | { |
4435 | struct walk_type_data d; | |
4436 | char *prevval3; | |
3d7aafde | 4437 | |
17211ab5 GK |
4438 | memset (&d, 0, sizeof (d)); |
4439 | d.of = f; | |
4440 | d.cookie = wtd; | |
4441 | d.indent = 2; | |
4442 | d.line = &v->line; | |
4443 | d.opt = v->opt; | |
11a67599 | 4444 | d.bitmap = get_lang_bitmap (v->line.file); |
17211ab5 GK |
4445 | |
4446 | d.prev_val[3] = prevval3 = xasprintf ("&%s", v->name); | |
4447 | ||
4448 | if (wtd->param_prefix) | |
4449 | { | |
4450 | oprintf (f, "static void gt_%sa_%s\n", wtd->param_prefix, v->name); | |
e1b793e7 | 4451 | oprintf (f, " (void *, void *, gt_pointer_operator, void *);\n"); |
e18476eb | 4452 | oprintf (f, "static void gt_%sa_%s (ATTRIBUTE_UNUSED void *this_obj,\n", |
17211ab5 | 4453 | wtd->param_prefix, v->name); |
e18476eb BI |
4454 | oprintf (d.of, |
4455 | " ATTRIBUTE_UNUSED void *x_p,\n" | |
4456 | " ATTRIBUTE_UNUSED gt_pointer_operator op,\n" | |
4457 | " ATTRIBUTE_UNUSED void * cookie)\n"); | |
17211ab5 GK |
4458 | oprintf (d.of, "{\n"); |
4459 | d.prev_val[0] = d.prev_val[1] = d.prev_val[2] = d.val = v->name; | |
4460 | d.process_field = write_types_local_process_field; | |
3ad45f7f | 4461 | d.have_this_obj = true; |
17211ab5 GK |
4462 | walk_type (v->type, &d); |
4463 | oprintf (f, "}\n\n"); | |
4464 | } | |
4465 | ||
4466 | d.opt = v->opt; | |
e1b793e7 | 4467 | oprintf (f, "static void gt_%sa_%s (void *);\n", wtd->prefix, v->name); |
e18476eb | 4468 | oprintf (f, "static void\ngt_%sa_%s (ATTRIBUTE_UNUSED void *x_p)\n", |
17211ab5 | 4469 | wtd->prefix, v->name); |
17211ab5 GK |
4470 | oprintf (f, "{\n"); |
4471 | d.prev_val[0] = d.prev_val[1] = d.prev_val[2] = d.val = v->name; | |
4472 | d.process_field = write_types_process_field; | |
3ad45f7f | 4473 | d.have_this_obj = false; |
17211ab5 GK |
4474 | walk_type (v->type, &d); |
4475 | free (prevval3); | |
4476 | oprintf (f, "}\n\n"); | |
4477 | } | |
4478 | ||
9f313342 GK |
4479 | /* Output a table describing the locations and types of VARIABLES. */ |
4480 | ||
e2500fed | 4481 | static void |
99be7084 | 4482 | write_roots (pair_p variables, bool emit_pch) |
e2500fed GK |
4483 | { |
4484 | pair_p v; | |
4485 | struct flist *flp = NULL; | |
4486 | ||
4487 | for (v = variables; v; v = v->next) | |
4488 | { | |
14c4815e BS |
4489 | outf_p f = |
4490 | get_output_file_with_visibility (CONST_CAST (input_file*, | |
4491 | v->line.file)); | |
e2500fed GK |
4492 | struct flist *fli; |
4493 | const char *length = NULL; | |
4494 | int deletable_p = 0; | |
4495 | options_p o; | |
e2500fed | 4496 | for (o = v->opt; o; o = o->next) |
412dc29d BS |
4497 | if (strcmp (o->name, "length") == 0 |
4498 | && o->kind == OPTION_STRING) | |
4499 | length = o->info.string; | |
e2500fed GK |
4500 | else if (strcmp (o->name, "deletable") == 0) |
4501 | deletable_p = 1; | |
aebf76a2 TS |
4502 | else if (strcmp (o->name, "cache") == 0) |
4503 | ; | |
e2500fed | 4504 | else |
3d7aafde | 4505 | error_at_line (&v->line, |
e2500fed GK |
4506 | "global `%s' has unknown option `%s'", |
4507 | v->name, o->name); | |
4508 | ||
4509 | for (fli = flp; fli; fli = fli->next) | |
bd117bb6 | 4510 | if (fli->f == f && f) |
e2500fed GK |
4511 | break; |
4512 | if (fli == NULL) | |
4513 | { | |
5d038c4c | 4514 | fli = XNEW (struct flist); |
e2500fed GK |
4515 | fli->f = f; |
4516 | fli->next = flp; | |
4517 | fli->started_p = 0; | |
14c4815e BS |
4518 | fli->file = v->line.file; |
4519 | gcc_assert (fli->file); | |
e2500fed GK |
4520 | flp = fli; |
4521 | ||
e03856fe | 4522 | oprintf (f, "\n/* GC roots. */\n\n"); |
e2500fed GK |
4523 | } |
4524 | ||
e1b793e7 | 4525 | if (!deletable_p |
e2500fed GK |
4526 | && length |
4527 | && v->type->kind == TYPE_POINTER | |
4528 | && (v->type->u.p->kind == TYPE_POINTER | |
4529 | || v->type->u.p->kind == TYPE_STRUCT)) | |
4530 | { | |
17211ab5 GK |
4531 | write_array (f, v, &ggc_wtd); |
4532 | write_array (f, v, &pch_wtd); | |
e2500fed GK |
4533 | } |
4534 | } | |
4535 | ||
4536 | for (v = variables; v; v = v->next) | |
4537 | { | |
14c4815e BS |
4538 | outf_p f = get_output_file_with_visibility (CONST_CAST (input_file*, |
4539 | v->line.file)); | |
e2500fed GK |
4540 | struct flist *fli; |
4541 | int skip_p = 0; | |
4542 | int length_p = 0; | |
4543 | options_p o; | |
3d7aafde | 4544 | |
e2500fed GK |
4545 | for (o = v->opt; o; o = o->next) |
4546 | if (strcmp (o->name, "length") == 0) | |
4547 | length_p = 1; | |
63f5d5b8 | 4548 | else if (strcmp (o->name, "deletable") == 0) |
e2500fed GK |
4549 | skip_p = 1; |
4550 | ||
4551 | if (skip_p) | |
4552 | continue; | |
4553 | ||
4554 | for (fli = flp; fli; fli = fli->next) | |
4555 | if (fli->f == f) | |
4556 | break; | |
e1b793e7 | 4557 | if (!fli->started_p) |
e2500fed GK |
4558 | { |
4559 | fli->started_p = 1; | |
4560 | ||
6bc7bc14 | 4561 | oprintf (f, "EXPORTED_CONST struct ggc_root_tab gt_ggc_r_"); |
e2500fed | 4562 | put_mangled_filename (f, v->line.file); |
e03856fe | 4563 | oprintf (f, "[] = {\n"); |
e2500fed GK |
4564 | } |
4565 | ||
63f5d5b8 | 4566 | write_root (f, v, v->type, v->name, length_p, &v->line, emit_pch); |
e2500fed GK |
4567 | } |
4568 | ||
3d7aafde | 4569 | finish_root_table (flp, "ggc_r", "LAST_GGC_ROOT_TAB", "ggc_root_tab", |
e2500fed GK |
4570 | "gt_ggc_rtab"); |
4571 | ||
4572 | for (v = variables; v; v = v->next) | |
4573 | { | |
14c4815e BS |
4574 | outf_p f = get_output_file_with_visibility (CONST_CAST (input_file*, |
4575 | v->line.file)); | |
e2500fed GK |
4576 | struct flist *fli; |
4577 | int skip_p = 1; | |
4578 | options_p o; | |
4579 | ||
4580 | for (o = v->opt; o; o = o->next) | |
4581 | if (strcmp (o->name, "deletable") == 0) | |
4582 | skip_p = 0; | |
e2500fed GK |
4583 | |
4584 | if (skip_p) | |
4585 | continue; | |
4586 | ||
4587 | for (fli = flp; fli; fli = fli->next) | |
4588 | if (fli->f == f) | |
4589 | break; | |
e1b793e7 | 4590 | if (!fli->started_p) |
e2500fed GK |
4591 | { |
4592 | fli->started_p = 1; | |
4593 | ||
6bc7bc14 | 4594 | oprintf (f, "EXPORTED_CONST struct ggc_root_tab gt_ggc_rd_"); |
e2500fed | 4595 | put_mangled_filename (f, v->line.file); |
e03856fe | 4596 | oprintf (f, "[] = {\n"); |
e2500fed | 4597 | } |
3d7aafde | 4598 | |
17211ab5 | 4599 | oprintf (f, " { &%s, 1, sizeof (%s), NULL, NULL },\n", |
e2500fed GK |
4600 | v->name, v->name); |
4601 | } | |
3d7aafde | 4602 | |
17211ab5 | 4603 | finish_root_table (flp, "ggc_rd", "LAST_GGC_ROOT_TAB", "ggc_root_tab", |
e2500fed GK |
4604 | "gt_ggc_deletable_rtab"); |
4605 | ||
aebf76a2 TS |
4606 | for (v = variables; v; v = v->next) |
4607 | { | |
4608 | outf_p f = get_output_file_with_visibility (CONST_CAST (input_file*, | |
4609 | v->line.file)); | |
4610 | struct flist *fli; | |
4611 | bool cache = false; | |
4612 | options_p o; | |
4613 | ||
4614 | for (o = v->opt; o; o = o->next) | |
4615 | if (strcmp (o->name, "cache") == 0) | |
4616 | cache = true; | |
4617 | if (!cache) | |
4618 | continue; | |
4619 | ||
4620 | for (fli = flp; fli; fli = fli->next) | |
4621 | if (fli->f == f) | |
4622 | break; | |
4623 | if (!fli->started_p) | |
4624 | { | |
4625 | fli->started_p = 1; | |
4626 | ||
4627 | oprintf (f, "void\ngt_clear_caches_"); | |
4628 | put_mangled_filename (f, v->line.file); | |
4629 | oprintf (f, " ()\n{\n"); | |
4630 | } | |
4631 | ||
4632 | oprintf (f, " gt_cleare_cache (%s);\n", v->name); | |
4633 | } | |
4634 | ||
4635 | finish_cache_funcs (flp); | |
4636 | ||
99be7084 BS |
4637 | if (!emit_pch) |
4638 | return; | |
4639 | ||
17211ab5 GK |
4640 | for (v = variables; v; v = v->next) |
4641 | { | |
14c4815e BS |
4642 | outf_p f = get_output_file_with_visibility (CONST_CAST (input_file*, |
4643 | v->line.file)); | |
17211ab5 GK |
4644 | struct flist *fli; |
4645 | int skip_p = 0; | |
4646 | options_p o; | |
4647 | ||
4648 | for (o = v->opt; o; o = o->next) | |
63f5d5b8 | 4649 | if (strcmp (o->name, "deletable") == 0) |
bcb97fbd PCC |
4650 | { |
4651 | skip_p = 1; | |
4652 | break; | |
4653 | } | |
17211ab5 GK |
4654 | |
4655 | if (skip_p) | |
4656 | continue; | |
4657 | ||
e1b793e7 | 4658 | if (!contains_scalar_p (v->type)) |
17211ab5 GK |
4659 | continue; |
4660 | ||
4661 | for (fli = flp; fli; fli = fli->next) | |
4662 | if (fli->f == f) | |
4663 | break; | |
e1b793e7 | 4664 | if (!fli->started_p) |
17211ab5 GK |
4665 | { |
4666 | fli->started_p = 1; | |
4667 | ||
6bc7bc14 | 4668 | oprintf (f, "EXPORTED_CONST struct ggc_root_tab gt_pch_rs_"); |
17211ab5 GK |
4669 | put_mangled_filename (f, v->line.file); |
4670 | oprintf (f, "[] = {\n"); | |
4671 | } | |
3d7aafde | 4672 | |
17211ab5 GK |
4673 | oprintf (f, " { &%s, 1, sizeof (%s), NULL, NULL },\n", |
4674 | v->name, v->name); | |
4675 | } | |
3d7aafde | 4676 | |
17211ab5 GK |
4677 | finish_root_table (flp, "pch_rs", "LAST_GGC_ROOT_TAB", "ggc_root_tab", |
4678 | "gt_pch_scalar_rtab"); | |
e2500fed | 4679 | } |
a9429e29 | 4680 | |
a9429e29 LB |
4681 | /* Prints not-as-ugly version of a typename of T to OF. Trades the uniquness |
4682 | guaranteee for somewhat increased readability. If name conflicts do happen, | |
4683 | this funcion will have to be adjusted to be more like | |
4684 | output_mangled_typename. */ | |
4685 | ||
0277fabf LB |
4686 | #define INDENT 2 |
4687 | ||
4688 | /* Dumps the value of typekind KIND. */ | |
4689 | ||
4690 | static void | |
4691 | dump_typekind (int indent, enum typekind kind) | |
4692 | { | |
4693 | printf ("%*ckind = ", indent, ' '); | |
4694 | switch (kind) | |
4695 | { | |
e1b793e7 BS |
4696 | case TYPE_SCALAR: |
4697 | printf ("TYPE_SCALAR"); | |
4698 | break; | |
4699 | case TYPE_STRING: | |
4700 | printf ("TYPE_STRING"); | |
4701 | break; | |
4702 | case TYPE_STRUCT: | |
4703 | printf ("TYPE_STRUCT"); | |
4704 | break; | |
9771b263 DN |
4705 | case TYPE_UNDEFINED: |
4706 | printf ("TYPE_UNDEFINED"); | |
4707 | break; | |
0823efed DN |
4708 | case TYPE_USER_STRUCT: |
4709 | printf ("TYPE_USER_STRUCT"); | |
4710 | break; | |
e1b793e7 BS |
4711 | case TYPE_UNION: |
4712 | printf ("TYPE_UNION"); | |
4713 | break; | |
4714 | case TYPE_POINTER: | |
4715 | printf ("TYPE_POINTER"); | |
4716 | break; | |
4717 | case TYPE_ARRAY: | |
4718 | printf ("TYPE_ARRAY"); | |
4719 | break; | |
4720 | case TYPE_LANG_STRUCT: | |
4721 | printf ("TYPE_LANG_STRUCT"); | |
4722 | break; | |
e1b793e7 BS |
4723 | default: |
4724 | gcc_unreachable (); | |
0277fabf LB |
4725 | } |
4726 | printf ("\n"); | |
4727 | } | |
4728 | ||
4729 | /* Dumps the value of GC_USED flag. */ | |
4730 | ||
4731 | static void | |
4732 | dump_gc_used (int indent, enum gc_used_enum gc_used) | |
4733 | { | |
4734 | printf ("%*cgc_used = ", indent, ' '); | |
4735 | switch (gc_used) | |
4736 | { | |
e1b793e7 BS |
4737 | case GC_UNUSED: |
4738 | printf ("GC_UNUSED"); | |
4739 | break; | |
4740 | case GC_USED: | |
4741 | printf ("GC_USED"); | |
4742 | break; | |
4743 | case GC_MAYBE_POINTED_TO: | |
4744 | printf ("GC_MAYBE_POINTED_TO"); | |
4745 | break; | |
4746 | case GC_POINTED_TO: | |
4747 | printf ("GC_POINTED_TO"); | |
4748 | break; | |
4749 | default: | |
4750 | gcc_unreachable (); | |
0277fabf LB |
4751 | } |
4752 | printf ("\n"); | |
4753 | } | |
4754 | ||
4755 | /* Dumps the type options OPT. */ | |
4756 | ||
4757 | static void | |
4758 | dump_options (int indent, options_p opt) | |
4759 | { | |
4760 | options_p o; | |
4761 | printf ("%*coptions = ", indent, ' '); | |
4762 | o = opt; | |
4763 | while (o) | |
4764 | { | |
412dc29d BS |
4765 | switch (o->kind) |
4766 | { | |
4767 | case OPTION_STRING: | |
4768 | printf ("%s:string %s ", o->name, o->info.string); | |
4769 | break; | |
4770 | case OPTION_TYPE: | |
4771 | printf ("%s:type ", o->name); | |
4772 | dump_type (indent+1, o->info.type); | |
4773 | break; | |
4774 | case OPTION_NESTED: | |
4775 | printf ("%s:nested ", o->name); | |
4776 | break; | |
4777 | case OPTION_NONE: | |
4778 | gcc_unreachable (); | |
4779 | } | |
e1b793e7 | 4780 | o = o->next; |
0277fabf LB |
4781 | } |
4782 | printf ("\n"); | |
4783 | } | |
4784 | ||
4785 | /* Dumps the source file location in LINE. */ | |
4786 | ||
4787 | static void | |
4788 | dump_fileloc (int indent, struct fileloc line) | |
4789 | { | |
14c4815e BS |
4790 | printf ("%*cfileloc: file = %s, line = %d\n", indent, ' ', |
4791 | get_input_file_name (line.file), | |
0277fabf LB |
4792 | line.line); |
4793 | } | |
4794 | ||
4795 | /* Recursively dumps the struct, union, or a language-specific | |
4796 | struct T. */ | |
4797 | ||
4798 | static void | |
4799 | dump_type_u_s (int indent, type_p t) | |
4800 | { | |
4801 | pair_p fields; | |
4802 | ||
0823efed | 4803 | gcc_assert (union_or_struct_p (t)); |
0277fabf LB |
4804 | printf ("%*cu.s.tag = %s\n", indent, ' ', t->u.s.tag); |
4805 | dump_fileloc (indent, t->u.s.line); | |
4806 | printf ("%*cu.s.fields =\n", indent, ' '); | |
4807 | fields = t->u.s.fields; | |
4808 | while (fields) | |
4809 | { | |
e1b793e7 BS |
4810 | dump_pair (indent + INDENT, fields); |
4811 | fields = fields->next; | |
0277fabf LB |
4812 | } |
4813 | printf ("%*cend of fields of type %p\n", indent, ' ', (void *) t); | |
4814 | dump_options (indent, t->u.s.opt); | |
4815 | printf ("%*cu.s.bitmap = %X\n", indent, ' ', t->u.s.bitmap); | |
4816 | if (t->kind == TYPE_LANG_STRUCT) | |
4817 | { | |
4818 | printf ("%*cu.s.lang_struct:\n", indent, ' '); | |
4819 | dump_type_list (indent + INDENT, t->u.s.lang_struct); | |
4820 | } | |
4821 | } | |
4822 | ||
4823 | /* Recursively dumps the array T. */ | |
4824 | ||
4825 | static void | |
4826 | dump_type_u_a (int indent, type_p t) | |
4827 | { | |
4828 | gcc_assert (t->kind == TYPE_ARRAY); | |
4829 | printf ("%*clen = %s, u.a.p:\n", indent, ' ', t->u.a.len); | |
4830 | dump_type_list (indent + INDENT, t->u.a.p); | |
4831 | } | |
4832 | ||
0277fabf LB |
4833 | /* Recursively dumps the type list T. */ |
4834 | ||
4835 | static void | |
4836 | dump_type_list (int indent, type_p t) | |
4837 | { | |
4838 | type_p p = t; | |
4839 | while (p) | |
4840 | { | |
4841 | dump_type (indent, p); | |
4842 | p = p->next; | |
4843 | } | |
4844 | } | |
4845 | ||
4846 | static htab_t seen_types; | |
4847 | ||
4848 | /* Recursively dumps the type T if it was not dumped previously. */ | |
4849 | ||
4850 | static void | |
4851 | dump_type (int indent, type_p t) | |
4852 | { | |
4853 | PTR *slot; | |
4854 | ||
5330e5a1 MM |
4855 | printf ("%*cType at %p: ", indent, ' ', (void *) t); |
4856 | if (t->kind == TYPE_UNDEFINED) | |
4857 | { | |
4858 | gcc_assert (t->gc_used == GC_UNUSED); | |
4859 | printf ("undefined.\n"); | |
4860 | return; | |
4861 | } | |
4862 | ||
0823efed DN |
4863 | if (seen_types == NULL) |
4864 | seen_types = htab_create (100, htab_hash_pointer, htab_eq_pointer, NULL); | |
4865 | ||
0277fabf LB |
4866 | slot = htab_find_slot (seen_types, t, INSERT); |
4867 | if (*slot != NULL) | |
4868 | { | |
4869 | printf ("already seen.\n"); | |
4870 | return; | |
4871 | } | |
4872 | *slot = t; | |
4873 | printf ("\n"); | |
4874 | ||
4875 | dump_typekind (indent, t->kind); | |
4876 | printf ("%*cpointer_to = %p\n", indent + INDENT, ' ', | |
e1b793e7 | 4877 | (void *) t->pointer_to); |
0277fabf LB |
4878 | dump_gc_used (indent + INDENT, t->gc_used); |
4879 | switch (t->kind) | |
4880 | { | |
4881 | case TYPE_SCALAR: | |
4882 | printf ("%*cscalar_is_char = %s\n", indent + INDENT, ' ', | |
4883 | t->u.scalar_is_char ? "true" : "false"); | |
4884 | break; | |
4885 | case TYPE_STRING: | |
4886 | break; | |
4887 | case TYPE_STRUCT: | |
4888 | case TYPE_UNION: | |
4889 | case TYPE_LANG_STRUCT: | |
0823efed | 4890 | case TYPE_USER_STRUCT: |
0277fabf LB |
4891 | dump_type_u_s (indent + INDENT, t); |
4892 | break; | |
4893 | case TYPE_POINTER: | |
4894 | printf ("%*cp:\n", indent + INDENT, ' '); | |
4895 | dump_type (indent + INDENT, t->u.p); | |
4896 | break; | |
4897 | case TYPE_ARRAY: | |
4898 | dump_type_u_a (indent + INDENT, t); | |
4899 | break; | |
0277fabf LB |
4900 | default: |
4901 | gcc_unreachable (); | |
4902 | } | |
e1b793e7 | 4903 | printf ("%*cEnd of type at %p\n", indent, ' ', (void *) t); |
0277fabf LB |
4904 | } |
4905 | ||
4906 | /* Dumps the pair P. */ | |
4907 | ||
4908 | static void | |
4909 | dump_pair (int indent, pair_p p) | |
4910 | { | |
4911 | printf ("%*cpair: name = %s\n", indent, ' ', p->name); | |
4912 | dump_type (indent, p->type); | |
4913 | dump_fileloc (indent, p->line); | |
4914 | dump_options (indent, p->opt); | |
4915 | printf ("%*cEnd of pair %s\n", indent, ' ', p->name); | |
4916 | } | |
4917 | ||
4918 | /* Dumps the list of pairs PP. */ | |
4919 | ||
4920 | static void | |
e1b793e7 | 4921 | dump_pair_list (const char *name, pair_p pp) |
0277fabf LB |
4922 | { |
4923 | pair_p p; | |
4924 | printf ("%s:\n", name); | |
4925 | for (p = pp; p != NULL; p = p->next) | |
4926 | dump_pair (0, p); | |
4927 | printf ("End of %s\n\n", name); | |
4928 | } | |
4929 | ||
4930 | /* Dumps the STRUCTURES. */ | |
4931 | ||
4932 | static void | |
e1b793e7 | 4933 | dump_structures (const char *name, type_p structures) |
0277fabf LB |
4934 | { |
4935 | printf ("%s:\n", name); | |
4936 | dump_type_list (0, structures); | |
4937 | printf ("End of %s\n\n", name); | |
4938 | } | |
4939 | ||
92724e1d BS |
4940 | /* Dumps the internal structures of gengtype. This is useful to debug |
4941 | gengtype itself, or to understand what it does, e.g. for plugin | |
4942 | developers. */ | |
0277fabf LB |
4943 | |
4944 | static void | |
4945 | dump_everything (void) | |
4946 | { | |
0277fabf LB |
4947 | dump_pair_list ("typedefs", typedefs); |
4948 | dump_structures ("structures", structures); | |
0277fabf | 4949 | dump_pair_list ("variables", variables); |
0823efed DN |
4950 | |
4951 | /* Allocated with the first call to dump_type. */ | |
0277fabf LB |
4952 | htab_delete (seen_types); |
4953 | } | |
e2500fed | 4954 | \f |
e1b793e7 | 4955 | |
f8ed6dc5 JS |
4956 | |
4957 | /* Option specification for getopt_long. */ | |
4958 | static const struct option gengtype_long_options[] = { | |
4959 | {"help", no_argument, NULL, 'h'}, | |
4960 | {"version", no_argument, NULL, 'V'}, | |
1d32bbcd | 4961 | {"verbose", no_argument, NULL, 'v'}, |
f8ed6dc5 JS |
4962 | {"dump", no_argument, NULL, 'd'}, |
4963 | {"debug", no_argument, NULL, 'D'}, | |
4964 | {"plugin", required_argument, NULL, 'P'}, | |
4965 | {"srcdir", required_argument, NULL, 'S'}, | |
1d32bbcd | 4966 | {"backupdir", required_argument, NULL, 'B'}, |
f8ed6dc5 JS |
4967 | {"inputs", required_argument, NULL, 'I'}, |
4968 | {"read-state", required_argument, NULL, 'r'}, | |
4969 | {"write-state", required_argument, NULL, 'w'}, | |
4970 | /* Terminating NULL placeholder. */ | |
4971 | {NULL, no_argument, NULL, 0}, | |
4972 | }; | |
4973 | ||
4974 | ||
4975 | static void | |
4976 | print_usage (void) | |
4977 | { | |
4978 | printf ("Usage: %s\n", progname); | |
4979 | printf ("\t -h | --help " " \t# Give this help.\n"); | |
4980 | printf ("\t -D | --debug " | |
4981 | " \t# Give debug output to debug %s itself.\n", progname); | |
4982 | printf ("\t -V | --version " " \t# Give version information.\n"); | |
1d32bbcd | 4983 | printf ("\t -v | --verbose \t# Increase verbosity. Can be given several times.\n"); |
f8ed6dc5 JS |
4984 | printf ("\t -d | --dump " " \t# Dump state for debugging.\n"); |
4985 | printf ("\t -P | --plugin <output-file> <plugin-src> ... " | |
4986 | " \t# Generate for plugin.\n"); | |
4987 | printf ("\t -S | --srcdir <GCC-directory> " | |
4988 | " \t# Specify the GCC source directory.\n"); | |
1d32bbcd BS |
4989 | printf ("\t -B | --backupdir <directory> " |
4990 | " \t# Specify the backup directory for updated files.\n"); | |
f8ed6dc5 JS |
4991 | printf ("\t -I | --inputs <input-list> " |
4992 | " \t# Specify the file with source files list.\n"); | |
4993 | printf ("\t -w | --write-state <state-file> " " \t# Write a state file.\n"); | |
4994 | printf ("\t -r | --read-state <state-file> " " \t# Read a state file.\n"); | |
4995 | } | |
4996 | ||
4997 | static void | |
4998 | print_version (void) | |
4999 | { | |
5000 | printf ("%s %s%s\n", progname, pkgversion_string, version_string); | |
5001 | printf ("Report bugs: %s\n", bug_report_url); | |
5002 | } | |
5003 | ||
5004 | /* Parse the program options using getopt_long... */ | |
5005 | static void | |
5006 | parse_program_options (int argc, char **argv) | |
5007 | { | |
5008 | int opt = -1; | |
1d32bbcd | 5009 | while ((opt = getopt_long (argc, argv, "hVvdP:S:B:I:w:r:D", |
f8ed6dc5 JS |
5010 | gengtype_long_options, NULL)) >= 0) |
5011 | { | |
5012 | switch (opt) | |
5013 | { | |
5014 | case 'h': /* --help */ | |
5015 | print_usage (); | |
5016 | break; | |
5017 | case 'V': /* --version */ | |
5018 | print_version (); | |
5019 | break; | |
5020 | case 'd': /* --dump */ | |
5021 | do_dump = 1; | |
5022 | break; | |
5023 | case 'D': /* --debug */ | |
5024 | do_debug = 1; | |
5025 | break; | |
1d32bbcd BS |
5026 | case 'v': /* --verbose */ |
5027 | verbosity_level++; | |
5028 | break; | |
f8ed6dc5 JS |
5029 | case 'P': /* --plugin */ |
5030 | if (optarg) | |
5031 | plugin_output_filename = optarg; | |
5032 | else | |
5033 | fatal ("missing plugin output file name"); | |
5034 | break; | |
5035 | case 'S': /* --srcdir */ | |
5036 | if (optarg) | |
5037 | srcdir = optarg; | |
5038 | else | |
5039 | fatal ("missing source directory"); | |
5040 | srcdir_len = strlen (srcdir); | |
5041 | break; | |
1d32bbcd BS |
5042 | case 'B': /* --backupdir */ |
5043 | if (optarg) | |
5044 | backup_dir = optarg; | |
5045 | else | |
5046 | fatal ("missing backup directory"); | |
5047 | break; | |
f8ed6dc5 JS |
5048 | case 'I': /* --inputs */ |
5049 | if (optarg) | |
5050 | inputlist = optarg; | |
5051 | else | |
5052 | fatal ("missing input list"); | |
5053 | break; | |
5054 | case 'r': /* --read-state */ | |
5055 | if (optarg) | |
5056 | read_state_filename = optarg; | |
5057 | else | |
5058 | fatal ("missing read state file"); | |
5059 | DBGPRINTF ("read state %s\n", optarg); | |
5060 | break; | |
5061 | case 'w': /* --write-state */ | |
5062 | DBGPRINTF ("write state %s\n", optarg); | |
5063 | if (optarg) | |
5064 | write_state_filename = optarg; | |
5065 | else | |
5066 | fatal ("missing write state file"); | |
5067 | break; | |
5068 | default: | |
5069 | fprintf (stderr, "%s: unknown flag '%c'\n", progname, opt); | |
5070 | print_usage (); | |
5071 | fatal ("unexpected flag"); | |
5072 | } | |
5073 | }; | |
5074 | if (plugin_output_filename) | |
5075 | { | |
5076 | /* In plugin mode we require some input files. */ | |
5077 | int i = 0; | |
5078 | if (optind >= argc) | |
5079 | fatal ("no source files given in plugin mode"); | |
5080 | nb_plugin_files = argc - optind; | |
14c4815e | 5081 | plugin_files = XNEWVEC (input_file*, nb_plugin_files); |
f8ed6dc5 JS |
5082 | for (i = 0; i < (int) nb_plugin_files; i++) |
5083 | { | |
5084 | char *name = argv[i + optind]; | |
14c4815e | 5085 | plugin_files[i] = input_file_by_name (name); |
f8ed6dc5 JS |
5086 | } |
5087 | } | |
5088 | } | |
5089 | ||
5090 | ||
14c4815e BS |
5091 | \f |
5092 | /******* Manage input files. ******/ | |
5093 | ||
5094 | /* Hash table of unique input file names. */ | |
5095 | static htab_t input_file_htab; | |
5096 | ||
5097 | /* Find or allocate a new input_file by hash-consing it. */ | |
5098 | input_file* | |
5099 | input_file_by_name (const char* name) | |
5100 | { | |
5101 | PTR* slot; | |
5102 | input_file* f = NULL; | |
5103 | int namlen = 0; | |
5104 | if (!name) | |
5105 | return NULL; | |
5106 | namlen = strlen (name); | |
5107 | f = XCNEWVAR (input_file, sizeof (input_file)+namlen+2); | |
5108 | f->inpbitmap = 0; | |
5109 | f->inpoutf = NULL; | |
fbb20b29 | 5110 | f->inpisplugin = false; |
14c4815e BS |
5111 | strcpy (f->inpname, name); |
5112 | slot = htab_find_slot (input_file_htab, f, INSERT); | |
5113 | gcc_assert (slot != NULL); | |
5114 | if (*slot) | |
5115 | { | |
5116 | /* Already known input file. */ | |
5117 | free (f); | |
5118 | return (input_file*)(*slot); | |
5119 | } | |
5120 | /* New input file. */ | |
5121 | *slot = f; | |
5122 | return f; | |
5123 | } | |
5124 | ||
5125 | /* Hash table support routines for input_file-s. */ | |
5126 | static hashval_t | |
5127 | htab_hash_inputfile (const void *p) | |
5128 | { | |
5129 | const input_file *inpf = (const input_file *) p; | |
5130 | gcc_assert (inpf); | |
5131 | return htab_hash_string (get_input_file_name (inpf)); | |
5132 | } | |
5133 | ||
5134 | static int | |
5135 | htab_eq_inputfile (const void *x, const void *y) | |
5136 | { | |
5137 | const input_file *inpfx = (const input_file *) x; | |
5138 | const input_file *inpfy = (const input_file *) y; | |
5139 | gcc_assert (inpfx != NULL && inpfy != NULL); | |
ba78087b | 5140 | return !filename_cmp (get_input_file_name (inpfx), get_input_file_name (inpfy)); |
14c4815e BS |
5141 | } |
5142 | ||
5143 | ||
3d7aafde | 5144 | int |
11a67599 | 5145 | main (int argc, char **argv) |
e2500fed | 5146 | { |
11a67599 | 5147 | size_t i; |
f8ed6dc5 | 5148 | static struct fileloc pos = { NULL, 0 }; |
9b39cba9 | 5149 | outf_p output_header; |
11a67599 | 5150 | |
f8ed6dc5 JS |
5151 | /* Mandatory common initializations. */ |
5152 | progname = "gengtype"; /* For fatal and messages. */ | |
14c4815e BS |
5153 | /* Create the hash-table used to hash-cons input files. */ |
5154 | input_file_htab = | |
5155 | htab_create (800, htab_hash_inputfile, htab_eq_inputfile, NULL); | |
5156 | /* Initialize our special input files. */ | |
5157 | this_file = input_file_by_name (__FILE__); | |
5158 | system_h_file = input_file_by_name ("system.h"); | |
f8ed6dc5 JS |
5159 | /* Set the scalar_is_char union number for predefined scalar types. */ |
5160 | scalar_nonchar.u.scalar_is_char = FALSE; | |
5161 | scalar_char.u.scalar_is_char = TRUE; | |
5162 | ||
5163 | parse_program_options (argc, argv); | |
5164 | ||
f8ed6dc5 | 5165 | if (do_debug) |
0277fabf | 5166 | { |
f8ed6dc5 JS |
5167 | time_t now = (time_t) 0; |
5168 | time (&now); | |
5169 | DBGPRINTF ("gengtype started pid %d at %s", | |
5170 | (int) getpid (), ctime (&now)); | |
0277fabf LB |
5171 | } |
5172 | ||
f8ed6dc5 JS |
5173 | /* Parse the input list and the input files. */ |
5174 | DBGPRINTF ("inputlist %s", inputlist); | |
5175 | if (read_state_filename) | |
bd117bb6 | 5176 | { |
92724e1d BS |
5177 | if (inputlist) |
5178 | fatal ("input list %s cannot be given with a read state file %s", | |
5179 | inputlist, read_state_filename); | |
5180 | read_state (read_state_filename); | |
5181 | DBGPRINT_COUNT_TYPE ("structures after read_state", structures); | |
bd117bb6 | 5182 | } |
f8ed6dc5 | 5183 | else if (inputlist) |
bd117bb6 | 5184 | { |
f8ed6dc5 JS |
5185 | /* These types are set up with #define or else outside of where |
5186 | we can see them. We should initialize them before calling | |
5187 | read_input_list. */ | |
b1d2d6b1 | 5188 | #define POS_HERE(Call) do { pos.file = this_file; pos.line = __LINE__; \ |
c3284718 | 5189 | Call;} while (0) |
b1d2d6b1 BS |
5190 | POS_HERE (do_scalar_typedef ("CUMULATIVE_ARGS", &pos)); |
5191 | POS_HERE (do_scalar_typedef ("REAL_VALUE_TYPE", &pos)); | |
5192 | POS_HERE (do_scalar_typedef ("FIXED_VALUE_TYPE", &pos)); | |
5193 | POS_HERE (do_scalar_typedef ("double_int", &pos)); | |
21810de4 | 5194 | POS_HERE (do_scalar_typedef ("poly_int64_pod", &pos)); |
807e902e KZ |
5195 | POS_HERE (do_scalar_typedef ("offset_int", &pos)); |
5196 | POS_HERE (do_scalar_typedef ("widest_int", &pos)); | |
a9243bfc | 5197 | POS_HERE (do_scalar_typedef ("int64_t", &pos)); |
84bc717b | 5198 | POS_HERE (do_scalar_typedef ("poly_int64", &pos)); |
b1d2d6b1 BS |
5199 | POS_HERE (do_scalar_typedef ("uint64_t", &pos)); |
5200 | POS_HERE (do_scalar_typedef ("uint8", &pos)); | |
5973ae1a | 5201 | POS_HERE (do_scalar_typedef ("uintptr_t", &pos)); |
b1d2d6b1 BS |
5202 | POS_HERE (do_scalar_typedef ("jword", &pos)); |
5203 | POS_HERE (do_scalar_typedef ("JCF_u2", &pos)); | |
5204 | POS_HERE (do_scalar_typedef ("void", &pos)); | |
ef4bddc2 | 5205 | POS_HERE (do_scalar_typedef ("machine_mode", &pos)); |
ef1d3b57 | 5206 | POS_HERE (do_scalar_typedef ("fixed_size_mode", &pos)); |
b1d2d6b1 BS |
5207 | POS_HERE (do_typedef ("PTR", |
5208 | create_pointer (resolve_typedef ("void", &pos)), | |
5209 | &pos)); | |
5210 | #undef POS_HERE | |
f8ed6dc5 JS |
5211 | read_input_list (inputlist); |
5212 | for (i = 0; i < num_gt_files; i++) | |
5213 | { | |
14c4815e BS |
5214 | parse_file (get_input_file_name (gt_files[i])); |
5215 | DBGPRINTF ("parsed file #%d %s", | |
5216 | (int) i, get_input_file_name (gt_files[i])); | |
f8ed6dc5 | 5217 | } |
1d32bbcd | 5218 | if (verbosity_level >= 1) |
92724e1d BS |
5219 | printf ("%s parsed %d files with %d GTY types\n", |
5220 | progname, (int) num_gt_files, type_count); | |
1d32bbcd | 5221 | |
f8ed6dc5 | 5222 | DBGPRINT_COUNT_TYPE ("structures after parsing", structures); |
b8698a0f | 5223 | } |
bd117bb6 | 5224 | else |
f8ed6dc5 | 5225 | fatal ("either an input list or a read state file should be given"); |
11a67599 ZW |
5226 | if (hit_error) |
5227 | return 1; | |
5228 | ||
95161faf | 5229 | |
f8ed6dc5 JS |
5230 | if (plugin_output_filename) |
5231 | { | |
5232 | size_t ix = 0; | |
5233 | /* In plugin mode, we should have read a state file, and have | |
14c4815e | 5234 | given at least one plugin file. */ |
f8ed6dc5 JS |
5235 | if (!read_state_filename) |
5236 | fatal ("No read state given in plugin mode for %s", | |
5237 | plugin_output_filename); | |
5238 | ||
dad22268 | 5239 | if (nb_plugin_files == 0 || !plugin_files) |
f8ed6dc5 JS |
5240 | fatal ("No plugin files given in plugin mode for %s", |
5241 | plugin_output_filename); | |
5242 | ||
92724e1d | 5243 | /* Parse our plugin files and augment the state. */ |
f8ed6dc5 | 5244 | for (ix = 0; ix < nb_plugin_files; ix++) |
fbb20b29 BS |
5245 | { |
5246 | input_file* pluginput = plugin_files [ix]; | |
5247 | pluginput->inpisplugin = true; | |
5248 | parse_file (get_input_file_name (pluginput)); | |
5249 | } | |
f8ed6dc5 JS |
5250 | if (hit_error) |
5251 | return 1; | |
e2500fed | 5252 | |
f8ed6dc5 JS |
5253 | plugin_output = create_file ("GCC", plugin_output_filename); |
5254 | DBGPRINTF ("created plugin_output %p named %s", | |
5255 | (void *) plugin_output, plugin_output->name); | |
5256 | } | |
5257 | else | |
5258 | { /* No plugin files, we are in normal mode. */ | |
5259 | if (!srcdir) | |
5260 | fatal ("gengtype needs a source directory in normal mode"); | |
5261 | } | |
01d419ae | 5262 | if (hit_error) |
065ae611 | 5263 | return 1; |
e2500fed | 5264 | |
f8ed6dc5 JS |
5265 | gen_rtx_next (); |
5266 | ||
e2500fed GK |
5267 | set_gc_used (variables); |
5268 | ||
2a22f99c TS |
5269 | for (type_p t = structures; t; t = t->next) |
5270 | { | |
5271 | bool for_user = false; | |
5272 | for (options_p o = t->u.s.opt; o; o = o->next) | |
5273 | if (strcmp (o->name, "for_user") == 0) | |
5274 | { | |
5275 | for_user = true; | |
5276 | break; | |
5277 | } | |
5278 | ||
5279 | if (for_user) | |
63f5d5b8 | 5280 | set_gc_used_type (t, GC_POINTED_TO); |
2a22f99c | 5281 | } |
92724e1d BS |
5282 | /* The state at this point is read from the state input file or by |
5283 | parsing source files and optionally augmented by parsing plugin | |
5284 | source files. Write it now. */ | |
f8ed6dc5 JS |
5285 | if (write_state_filename) |
5286 | { | |
92724e1d | 5287 | DBGPRINT_COUNT_TYPE ("structures before write_state", structures); |
92724e1d BS |
5288 | |
5289 | if (hit_error) | |
5290 | fatal ("didn't write state file %s after errors", | |
5291 | write_state_filename); | |
5292 | ||
5293 | DBGPRINTF ("before write_state %s", write_state_filename); | |
5294 | write_state (write_state_filename); | |
5295 | ||
5296 | if (do_dump) | |
5297 | dump_everything (); | |
5298 | ||
5299 | /* After having written the state file we return immediately to | |
5300 | avoid generating any output file. */ | |
5301 | if (hit_error) | |
5302 | return 1; | |
5303 | else | |
5304 | return 0; | |
f8ed6dc5 JS |
5305 | } |
5306 | ||
5307 | ||
e2500fed | 5308 | open_base_files (); |
f8ed6dc5 | 5309 | |
9b39cba9 | 5310 | output_header = plugin_output ? plugin_output : header_file; |
f8ed6dc5 JS |
5311 | DBGPRINT_COUNT_TYPE ("structures before write_types outputheader", |
5312 | structures); | |
f8ed6dc5 | 5313 | |
63f5d5b8 | 5314 | write_types (output_header, structures, &ggc_wtd); |
ea2ca633 | 5315 | if (plugin_files == NULL) |
99be7084 | 5316 | { |
f8ed6dc5 JS |
5317 | DBGPRINT_COUNT_TYPE ("structures before write_types headerfil", |
5318 | structures); | |
63f5d5b8 TS |
5319 | write_types (header_file, structures, &pch_wtd); |
5320 | write_local (header_file, structures); | |
99be7084 | 5321 | } |
ea2ca633 | 5322 | write_roots (variables, plugin_files == NULL); |
36a5eadd | 5323 | write_rtx_next (); |
e2500fed GK |
5324 | close_output_files (); |
5325 | ||
0277fabf LB |
5326 | if (do_dump) |
5327 | dump_everything (); | |
5328 | ||
f8ed6dc5 | 5329 | /* Don't bother about free-ing any input or plugin file, etc. */ |
9f78bf05 | 5330 | |
01d419ae ZW |
5331 | if (hit_error) |
5332 | return 1; | |
5333 | return 0; | |
e2500fed | 5334 | } |