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5d3236ee DK |
1 | /* Test plugin for the GNU linker. |
2 | Copyright 2010 Free Software Foundation, Inc. | |
3 | ||
4 | This file is part of the GNU Binutils. | |
5 | ||
6 | This program is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
8 | the Free Software Foundation; either version 3 of the License, or | |
9 | (at your option) any later version. | |
10 | ||
11 | This program is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with this program; if not, write to the Free Software | |
18 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, | |
19 | MA 02110-1301, USA. */ | |
20 | ||
21 | #include "sysdep.h" | |
22 | #include "bfd.h" | |
23 | #include "plugin-api.h" | |
24 | /* For ARRAY_SIZE macro only - we don't link the library itself. */ | |
25 | #include "libiberty.h" | |
26 | ||
27 | extern enum ld_plugin_status onload (struct ld_plugin_tv *tv); | |
28 | static enum ld_plugin_status onclaim_file (const struct ld_plugin_input_file *file, | |
29 | int *claimed); | |
30 | static enum ld_plugin_status onall_symbols_read (void); | |
31 | static enum ld_plugin_status oncleanup (void); | |
32 | ||
33 | /* Helper for calling plugin api message function. */ | |
34 | #define TV_MESSAGE if (tv_message) (*tv_message) | |
35 | ||
36 | /* Struct for recording files to claim / files claimed. */ | |
37 | typedef struct claim_file | |
38 | { | |
39 | struct claim_file *next; | |
40 | struct ld_plugin_input_file file; | |
41 | bfd_boolean claimed; | |
42 | struct ld_plugin_symbol *symbols; | |
43 | int n_syms_allocated; | |
44 | int n_syms_used; | |
45 | } claim_file_t; | |
46 | ||
47 | /* Types of things that can be added at all symbols read time. */ | |
48 | typedef enum addfile_enum | |
49 | { | |
50 | ADD_FILE, | |
51 | ADD_LIB, | |
52 | ADD_DIR | |
53 | } addfile_enum_t; | |
54 | ||
55 | /* Struct for recording files to add to final link. */ | |
56 | typedef struct add_file | |
57 | { | |
58 | struct add_file *next; | |
59 | const char *name; | |
60 | addfile_enum_t type; | |
61 | } add_file_t; | |
62 | ||
63 | /* Helper macro for defining array of transfer vector tags and names. */ | |
64 | #define ADDENTRY(tag) { tag, #tag } | |
65 | ||
66 | /* Struct for looking up human-readable versions of tag names. */ | |
67 | typedef struct tag_name | |
68 | { | |
69 | enum ld_plugin_tag tag; | |
70 | const char *name; | |
71 | } tag_name_t; | |
72 | ||
73 | /* Array of all known tags and their names. */ | |
74 | static const tag_name_t tag_names[] = | |
75 | { | |
76 | ADDENTRY(LDPT_NULL), | |
77 | ADDENTRY(LDPT_API_VERSION), | |
78 | ADDENTRY(LDPT_GOLD_VERSION), | |
79 | ADDENTRY(LDPT_LINKER_OUTPUT), | |
80 | ADDENTRY(LDPT_OPTION), | |
81 | ADDENTRY(LDPT_REGISTER_CLAIM_FILE_HOOK), | |
82 | ADDENTRY(LDPT_REGISTER_ALL_SYMBOLS_READ_HOOK), | |
83 | ADDENTRY(LDPT_REGISTER_CLEANUP_HOOK), | |
84 | ADDENTRY(LDPT_ADD_SYMBOLS), | |
85 | ADDENTRY(LDPT_GET_SYMBOLS), | |
86 | ADDENTRY(LDPT_ADD_INPUT_FILE), | |
87 | ADDENTRY(LDPT_MESSAGE), | |
88 | ADDENTRY(LDPT_GET_INPUT_FILE), | |
89 | ADDENTRY(LDPT_RELEASE_INPUT_FILE), | |
90 | ADDENTRY(LDPT_ADD_INPUT_LIBRARY), | |
91 | ADDENTRY(LDPT_OUTPUT_NAME), | |
92 | ADDENTRY(LDPT_SET_EXTRA_LIBRARY_PATH), | |
93 | ADDENTRY(LDPT_GNU_LD_VERSION) | |
94 | }; | |
95 | ||
96 | /* Function pointers to cache hooks passed at onload time. */ | |
97 | static ld_plugin_register_claim_file tv_register_claim_file = 0; | |
98 | static ld_plugin_register_all_symbols_read tv_register_all_symbols_read = 0; | |
99 | static ld_plugin_register_cleanup tv_register_cleanup = 0; | |
100 | static ld_plugin_add_symbols tv_add_symbols = 0; | |
101 | static ld_plugin_get_symbols tv_get_symbols = 0; | |
102 | static ld_plugin_add_input_file tv_add_input_file = 0; | |
103 | static ld_plugin_message tv_message = 0; | |
104 | static ld_plugin_get_input_file tv_get_input_file = 0; | |
105 | static ld_plugin_release_input_file tv_release_input_file = 0; | |
106 | static ld_plugin_add_input_library tv_add_input_library = 0; | |
107 | static ld_plugin_set_extra_library_path tv_set_extra_library_path = 0; | |
108 | ||
109 | /* Other cached info from the transfer vector. */ | |
110 | static enum ld_plugin_output_file_type linker_output; | |
111 | static const char *output_name; | |
112 | ||
113 | /* Behaviour control flags set by plugin options. */ | |
114 | static enum ld_plugin_status onload_ret = LDPS_OK; | |
115 | static enum ld_plugin_status claim_file_ret = LDPS_OK; | |
116 | static enum ld_plugin_status all_symbols_read_ret = LDPS_OK; | |
117 | static enum ld_plugin_status cleanup_ret = LDPS_OK; | |
118 | static bfd_boolean register_claimfile_hook = FALSE; | |
119 | static bfd_boolean register_allsymbolsread_hook = FALSE; | |
120 | static bfd_boolean register_cleanup_hook = FALSE; | |
121 | static bfd_boolean dumpresolutions = FALSE; | |
122 | ||
123 | /* The master list of all claimable/claimed files. */ | |
124 | static claim_file_t *claimfiles_list = NULL; | |
125 | ||
126 | /* We keep a tail pointer for easy linking on the end. */ | |
127 | static claim_file_t **claimfiles_tail_chain_ptr = &claimfiles_list; | |
128 | ||
129 | /* The last claimed file added to the list, for receiving syms. */ | |
130 | static claim_file_t *last_claimfile = NULL; | |
131 | ||
132 | /* The master list of all files to add to the final link. */ | |
133 | static add_file_t *addfiles_list = NULL; | |
134 | ||
135 | /* We keep a tail pointer for easy linking on the end. */ | |
136 | static add_file_t **addfiles_tail_chain_ptr = &addfiles_list; | |
137 | ||
138 | /* Add a new claimfile on the end of the chain. */ | |
139 | static enum ld_plugin_status | |
140 | record_claim_file (const char *file) | |
141 | { | |
142 | claim_file_t *newfile; | |
143 | ||
144 | newfile = malloc (sizeof *newfile); | |
145 | if (!newfile) | |
146 | return LDPS_ERR; | |
147 | memset (newfile, 0, sizeof *newfile); | |
148 | /* Only setup for now is remembering the name to look for. */ | |
149 | newfile->file.name = file; | |
150 | /* Chain it on the end of the list. */ | |
151 | *claimfiles_tail_chain_ptr = newfile; | |
152 | claimfiles_tail_chain_ptr = &newfile->next; | |
153 | /* Record it as active for receiving symbols to register. */ | |
154 | last_claimfile = newfile; | |
155 | return LDPS_OK; | |
156 | } | |
157 | ||
158 | /* Add a new addfile on the end of the chain. */ | |
159 | static enum ld_plugin_status | |
160 | record_add_file (const char *file, addfile_enum_t type) | |
161 | { | |
162 | add_file_t *newfile; | |
163 | ||
164 | newfile = malloc (sizeof *newfile); | |
165 | if (!newfile) | |
166 | return LDPS_ERR; | |
167 | newfile->next = NULL; | |
168 | newfile->name = file; | |
169 | newfile->type = type;; | |
170 | /* Chain it on the end of the list. */ | |
171 | *addfiles_tail_chain_ptr = newfile; | |
172 | addfiles_tail_chain_ptr = &newfile->next; | |
173 | return LDPS_OK; | |
174 | } | |
175 | ||
176 | /* Parse a command-line argument string into a symbol definition. | |
177 | Symbol-strings follow the colon-separated format: | |
178 | NAME:VERSION:def:vis:size:COMDATKEY | |
179 | where the fields in capitals are strings and those in lower | |
180 | case are integers. We don't allow to specify a resolution as | |
181 | doing so is not meaningful when calling the add symbols hook. */ | |
182 | static enum ld_plugin_status | |
183 | parse_symdefstr (const char *str, struct ld_plugin_symbol *sym) | |
184 | { | |
185 | int n; | |
186 | long long size; | |
187 | const char *colon1, *colon2, *colon5; | |
188 | ||
189 | /* Locate the colons separating the first two strings. */ | |
190 | colon1 = strchr (str, ':'); | |
191 | if (!colon1) | |
192 | return LDPS_ERR; | |
193 | colon2 = strchr (colon1+1, ':'); | |
194 | if (!colon2) | |
195 | return LDPS_ERR; | |
196 | /* Name must not be empty (version may be). */ | |
197 | if (colon1 == str) | |
198 | return LDPS_ERR; | |
199 | ||
200 | /* The fifth colon and trailing comdat key string are optional, | |
201 | but the intermediate ones must all be present. */ | |
202 | colon5 = strchr (colon2+1, ':'); /* Actually only third so far. */ | |
203 | if (!colon5) | |
204 | return LDPS_ERR; | |
205 | colon5 = strchr (colon5+1, ':'); /* Hopefully fourth now. */ | |
206 | if (!colon5) | |
207 | return LDPS_ERR; | |
208 | colon5 = strchr (colon5+1, ':'); /* Optional fifth now. */ | |
209 | ||
210 | /* Finally we'll use sscanf to parse the numeric fields, then | |
211 | we'll split out the strings which we need to allocate separate | |
212 | storage for anyway so that we can add nul termination. */ | |
213 | n = sscanf (colon2 + 1, "%i:%i:%lli", &sym->def, &sym->visibility, &size); | |
214 | if (n != 3) | |
215 | return LDPS_ERR; | |
216 | ||
217 | /* Parsed successfully, so allocate strings and fill out fields. */ | |
218 | sym->size = size; | |
219 | sym->resolution = LDPR_UNKNOWN; | |
220 | sym->name = malloc (colon1 - str + 1); | |
221 | if (!sym->name) | |
222 | return LDPS_ERR; | |
223 | memcpy (sym->name, str, colon1 - str); | |
224 | sym->name[colon1 - str] = '\0'; | |
225 | if (colon2 > (colon1 + 1)) | |
226 | { | |
227 | sym->version = malloc (colon2 - colon1); | |
228 | if (!sym->version) | |
229 | return LDPS_ERR; | |
230 | memcpy (sym->version, colon1 + 1, colon2 - (colon1 + 1)); | |
231 | sym->version[colon2 - (colon1 + 1)] = '\0'; | |
232 | } | |
233 | else | |
234 | sym->version = NULL; | |
235 | if (colon5 && colon5[1]) | |
236 | { | |
237 | sym->comdat_key = malloc (strlen (colon5 + 1) + 1); | |
238 | if (!sym->comdat_key) | |
239 | return LDPS_ERR; | |
240 | strcpy (sym->comdat_key, colon5 + 1); | |
241 | } | |
242 | else | |
243 | sym->comdat_key = 0; | |
244 | return LDPS_OK; | |
245 | } | |
246 | ||
247 | /* Record a symbol to be added for the last-added claimfile. */ | |
248 | static enum ld_plugin_status | |
249 | record_claimed_file_symbol (const char *symdefstr) | |
250 | { | |
251 | struct ld_plugin_symbol sym; | |
252 | ||
253 | /* Can't add symbols except as belonging to claimed files. */ | |
254 | if (!last_claimfile) | |
255 | return LDPS_ERR; | |
256 | ||
257 | /* If string doesn't parse correctly, give an error. */ | |
258 | if (parse_symdefstr (symdefstr, &sym) != LDPS_OK) | |
259 | return LDPS_ERR; | |
260 | ||
261 | /* Check for enough space, resize array if needed, and add it. */ | |
262 | if (last_claimfile->n_syms_allocated == last_claimfile->n_syms_used) | |
263 | { | |
264 | int new_n_syms = last_claimfile->n_syms_allocated | |
265 | ? 2 * last_claimfile->n_syms_allocated | |
266 | : 10; | |
267 | last_claimfile->symbols = realloc (last_claimfile->symbols, | |
268 | new_n_syms * sizeof *last_claimfile->symbols); | |
269 | if (!last_claimfile->symbols) | |
270 | return LDPS_ERR; | |
271 | last_claimfile->n_syms_allocated = new_n_syms; | |
272 | } | |
273 | last_claimfile->symbols[last_claimfile->n_syms_used++] = sym; | |
274 | ||
275 | return LDPS_OK; | |
276 | } | |
277 | ||
278 | /* Records the status to return from one of the registered hooks. */ | |
279 | static enum ld_plugin_status | |
280 | set_ret_val (const char *whichval, enum ld_plugin_status retval) | |
281 | { | |
282 | if (!strcmp ("onload", whichval)) | |
283 | onload_ret = retval; | |
284 | else if (!strcmp ("claimfile", whichval)) | |
285 | claim_file_ret = retval; | |
286 | else if (!strcmp ("allsymbolsread", whichval)) | |
287 | all_symbols_read_ret = retval; | |
288 | else if (!strcmp ("cleanup", whichval)) | |
289 | cleanup_ret = retval; | |
290 | else | |
291 | return LDPS_ERR; | |
292 | return LDPS_OK; | |
293 | } | |
294 | ||
295 | /* Records hooks which should be registered. */ | |
296 | static enum ld_plugin_status | |
297 | set_register_hook (const char *whichhook, bfd_boolean yesno) | |
298 | { | |
299 | if (!strcmp ("claimfile", whichhook)) | |
300 | register_claimfile_hook = yesno; | |
301 | else if (!strcmp ("allsymbolsread", whichhook)) | |
302 | register_allsymbolsread_hook = yesno; | |
303 | else if (!strcmp ("cleanup", whichhook)) | |
304 | register_cleanup_hook = yesno; | |
305 | else | |
306 | return LDPS_ERR; | |
307 | return LDPS_OK; | |
308 | } | |
309 | ||
310 | /* Determine type of plugin option and pass to individual parsers. */ | |
311 | static enum ld_plugin_status | |
312 | parse_option (const char *opt) | |
313 | { | |
314 | if (!strncmp ("fail", opt, 4)) | |
315 | return set_ret_val (opt + 4, LDPS_ERR); | |
316 | else if (!strncmp ("pass", opt, 4)) | |
317 | return set_ret_val (opt + 4, LDPS_OK); | |
318 | else if (!strncmp ("register", opt, 8)) | |
319 | return set_register_hook (opt + 8, TRUE); | |
320 | else if (!strncmp ("noregister", opt, 10)) | |
321 | return set_register_hook (opt + 10, FALSE); | |
322 | else if (!strncmp ("claim:", opt, 6)) | |
323 | return record_claim_file (opt + 6); | |
324 | else if (!strncmp ("sym:", opt, 4)) | |
325 | return record_claimed_file_symbol (opt + 4); | |
326 | else if (!strncmp ("add:", opt, 4)) | |
327 | return record_add_file (opt + 4, ADD_FILE); | |
328 | else if (!strncmp ("lib:", opt, 4)) | |
329 | return record_add_file (opt + 4, ADD_LIB); | |
330 | else if (!strncmp ("dir:", opt, 4)) | |
331 | return record_add_file (opt + 4, ADD_DIR); | |
332 | else if (!strcmp ("dumpresolutions", opt)) | |
333 | dumpresolutions = TRUE; | |
334 | else | |
335 | return LDPS_ERR; | |
336 | return LDPS_OK; | |
337 | } | |
338 | ||
339 | /* Output contents of transfer vector array entry in human-readable form. */ | |
340 | static void | |
341 | dump_tv_tag (size_t n, struct ld_plugin_tv *tv) | |
342 | { | |
343 | size_t tag; | |
344 | char unknownbuf[40]; | |
345 | const char *name; | |
346 | ||
347 | for (tag = 0; tag < ARRAY_SIZE (tag_names); tag++) | |
348 | if (tag_names[tag].tag == tv->tv_tag) | |
349 | break; | |
350 | sprintf (unknownbuf, "unknown tag #%d", tv->tv_tag); | |
351 | name = (tag < ARRAY_SIZE (tag_names)) ? tag_names[tag].name : unknownbuf; | |
5d3236ee DK |
352 | switch (tv->tv_tag) |
353 | { | |
354 | case LDPT_OPTION: | |
355 | case LDPT_OUTPUT_NAME: | |
ada487f6 L |
356 | TV_MESSAGE (LDPL_INFO, "tv[%d]: %s '%s'", n, name, |
357 | tv->tv_u.tv_string); | |
5d3236ee DK |
358 | break; |
359 | case LDPT_REGISTER_CLAIM_FILE_HOOK: | |
360 | case LDPT_REGISTER_ALL_SYMBOLS_READ_HOOK: | |
361 | case LDPT_REGISTER_CLEANUP_HOOK: | |
362 | case LDPT_ADD_SYMBOLS: | |
363 | case LDPT_GET_SYMBOLS: | |
364 | case LDPT_ADD_INPUT_FILE: | |
365 | case LDPT_MESSAGE: | |
366 | case LDPT_GET_INPUT_FILE: | |
367 | case LDPT_RELEASE_INPUT_FILE: | |
368 | case LDPT_ADD_INPUT_LIBRARY: | |
369 | case LDPT_SET_EXTRA_LIBRARY_PATH: | |
ada487f6 L |
370 | TV_MESSAGE (LDPL_INFO, "tv[%d]: %s func@0x%p", n, name, |
371 | (void *)(tv->tv_u.tv_message)); | |
5d3236ee DK |
372 | break; |
373 | case LDPT_NULL: | |
374 | case LDPT_API_VERSION: | |
375 | case LDPT_GOLD_VERSION: | |
376 | case LDPT_LINKER_OUTPUT: | |
377 | case LDPT_GNU_LD_VERSION: | |
378 | default: | |
ada487f6 L |
379 | TV_MESSAGE (LDPL_INFO, "tv[%d]: %s value %W (%d)", n, name, |
380 | (bfd_vma)tv->tv_u.tv_val, tv->tv_u.tv_val); | |
5d3236ee DK |
381 | break; |
382 | } | |
383 | } | |
384 | ||
385 | /* Handle/record information received in a transfer vector entry. */ | |
386 | static enum ld_plugin_status | |
387 | parse_tv_tag (struct ld_plugin_tv *tv) | |
388 | { | |
389 | #define SETVAR(x) x = tv->tv_u.x | |
390 | switch (tv->tv_tag) | |
391 | { | |
392 | case LDPT_OPTION: | |
393 | return parse_option (tv->tv_u.tv_string); | |
394 | case LDPT_NULL: | |
395 | case LDPT_GOLD_VERSION: | |
396 | case LDPT_GNU_LD_VERSION: | |
397 | case LDPT_API_VERSION: | |
398 | default: | |
399 | break; | |
400 | case LDPT_OUTPUT_NAME: | |
401 | output_name = tv->tv_u.tv_string; | |
402 | break; | |
403 | case LDPT_LINKER_OUTPUT: | |
404 | linker_output = tv->tv_u.tv_val; | |
405 | break; | |
406 | case LDPT_REGISTER_CLAIM_FILE_HOOK: | |
407 | SETVAR(tv_register_claim_file); | |
408 | break; | |
409 | case LDPT_REGISTER_ALL_SYMBOLS_READ_HOOK: | |
410 | SETVAR(tv_register_all_symbols_read); | |
411 | break; | |
412 | case LDPT_REGISTER_CLEANUP_HOOK: | |
413 | SETVAR(tv_register_cleanup); | |
414 | break; | |
415 | case LDPT_ADD_SYMBOLS: | |
416 | SETVAR(tv_add_symbols); | |
417 | break; | |
418 | case LDPT_GET_SYMBOLS: | |
419 | SETVAR(tv_get_symbols); | |
420 | break; | |
421 | case LDPT_ADD_INPUT_FILE: | |
422 | SETVAR(tv_add_input_file); | |
423 | break; | |
424 | case LDPT_MESSAGE: | |
425 | SETVAR(tv_message); | |
426 | break; | |
427 | case LDPT_GET_INPUT_FILE: | |
428 | SETVAR(tv_get_input_file); | |
429 | break; | |
430 | case LDPT_RELEASE_INPUT_FILE: | |
431 | SETVAR(tv_release_input_file); | |
432 | break; | |
433 | case LDPT_ADD_INPUT_LIBRARY: | |
434 | SETVAR(tv_add_input_library); | |
435 | break; | |
436 | case LDPT_SET_EXTRA_LIBRARY_PATH: | |
437 | SETVAR(tv_set_extra_library_path); | |
438 | break; | |
439 | } | |
440 | #undef SETVAR | |
441 | return LDPS_OK; | |
442 | } | |
443 | ||
444 | /* Record any useful information in transfer vector entry and display | |
445 | it in human-readable form using the plugin API message() callback. */ | |
446 | enum ld_plugin_status | |
447 | parse_and_dump_tv_tag (size_t n, struct ld_plugin_tv *tv) | |
448 | { | |
449 | enum ld_plugin_status rv = parse_tv_tag (tv); | |
450 | dump_tv_tag (n, tv); | |
451 | return rv; | |
452 | } | |
453 | ||
454 | /* Standard plugin API entry point. */ | |
455 | enum ld_plugin_status | |
456 | onload (struct ld_plugin_tv *tv) | |
457 | { | |
458 | size_t n = 0; | |
459 | enum ld_plugin_status rv; | |
460 | ||
461 | /* This plugin does nothing but dump the tv array. It would | |
462 | be an error if this function was called without one. */ | |
463 | if (!tv) | |
464 | return LDPS_ERR; | |
465 | ||
466 | /* First entry should always be LDPT_MESSAGE, letting us get | |
467 | hold of it easily so we can send output straight away. */ | |
468 | if (tv[0].tv_tag == LDPT_MESSAGE) | |
469 | tv_message = tv[0].tv_u.tv_message; | |
470 | ||
471 | fflush (NULL); | |
ada487f6 | 472 | TV_MESSAGE (LDPL_INFO, "Hello from testplugin."); |
5d3236ee DK |
473 | |
474 | do | |
475 | if ((rv = parse_and_dump_tv_tag (n++, tv)) != LDPS_OK) | |
476 | return rv; | |
477 | while ((tv++)->tv_tag != LDPT_NULL); | |
478 | ||
5d3236ee DK |
479 | /* Register hooks only if instructed by options. */ |
480 | if (register_claimfile_hook) | |
481 | { | |
482 | if (!tv_register_claim_file) | |
483 | { | |
ada487f6 | 484 | TV_MESSAGE (LDPL_FATAL, "No register_claim_file hook"); |
5d3236ee DK |
485 | fflush (NULL); |
486 | return LDPS_ERR; | |
487 | } | |
488 | (*tv_register_claim_file) (onclaim_file); | |
489 | } | |
490 | if (register_allsymbolsread_hook) | |
491 | { | |
492 | if (!tv_register_all_symbols_read) | |
493 | { | |
ada487f6 | 494 | TV_MESSAGE (LDPL_FATAL, "No register_all_symbols_read hook"); |
5d3236ee DK |
495 | fflush (NULL); |
496 | return LDPS_ERR; | |
497 | } | |
498 | (*tv_register_all_symbols_read) (onall_symbols_read); | |
499 | } | |
500 | if (register_cleanup_hook) | |
501 | { | |
502 | if (!tv_register_cleanup) | |
503 | { | |
ada487f6 | 504 | TV_MESSAGE (LDPL_FATAL, "No register_cleanup hook"); |
5d3236ee DK |
505 | fflush (NULL); |
506 | return LDPS_ERR; | |
507 | } | |
508 | (*tv_register_cleanup) (oncleanup); | |
509 | } | |
510 | fflush (NULL); | |
511 | return onload_ret; | |
512 | } | |
513 | ||
514 | /* Standard plugin API registerable hook. */ | |
515 | static enum ld_plugin_status | |
516 | onclaim_file (const struct ld_plugin_input_file *file, int *claimed) | |
517 | { | |
518 | /* Let's see if we want to claim this file. */ | |
519 | claim_file_t *claimfile = claimfiles_list; | |
520 | while (claimfile) | |
521 | { | |
f4c37f56 | 522 | if (!strcmp (file->name, claimfile->file.name)) |
5d3236ee DK |
523 | break; |
524 | claimfile = claimfile->next; | |
525 | } | |
526 | ||
527 | /* Inform the user/testsuite. */ | |
ada487f6 L |
528 | TV_MESSAGE (LDPL_INFO, "hook called: claim_file %s [@%ld/%ld] %s", |
529 | file->name, (long)file->offset, (long)file->filesize, | |
530 | claimfile ? "CLAIMED" : "not claimed"); | |
5d3236ee DK |
531 | fflush (NULL); |
532 | ||
533 | /* If we decided to claim it, record that fact, and add any symbols | |
534 | that were defined for it by plugin options. */ | |
535 | *claimed = (claimfile != 0); | |
536 | if (claimfile) | |
537 | { | |
538 | claimfile->claimed = TRUE; | |
539 | claimfile->file = *file; | |
540 | if (claimfile->n_syms_used && !tv_add_symbols) | |
541 | return LDPS_ERR; | |
542 | else if (claimfile->n_syms_used) | |
543 | return (*tv_add_symbols) (claimfile->file.handle, | |
544 | claimfile->n_syms_used, claimfile->symbols); | |
545 | } | |
546 | ||
547 | return claim_file_ret; | |
548 | } | |
549 | ||
550 | /* Standard plugin API registerable hook. */ | |
551 | static enum ld_plugin_status | |
552 | onall_symbols_read (void) | |
553 | { | |
554 | static const char *resolutions[] = | |
555 | { | |
556 | "LDPR_UNKNOWN", | |
557 | "LDPR_UNDEF", | |
558 | "LDPR_PREVAILING_DEF", | |
559 | "LDPR_PREVAILING_DEF_IRONLY", | |
560 | "LDPR_PREEMPTED_REG", | |
561 | "LDPR_PREEMPTED_IR", | |
562 | "LDPR_RESOLVED_IR", | |
563 | "LDPR_RESOLVED_EXEC", | |
564 | "LDPR_RESOLVED_DYN", | |
565 | }; | |
566 | claim_file_t *claimfile = dumpresolutions ? claimfiles_list : NULL; | |
567 | add_file_t *addfile = addfiles_list; | |
ada487f6 | 568 | TV_MESSAGE (LDPL_INFO, "hook called: all symbols read."); |
5d3236ee DK |
569 | for ( ; claimfile; claimfile = claimfile->next) |
570 | { | |
571 | enum ld_plugin_status rv; | |
572 | int n; | |
573 | if (claimfile->n_syms_used && !tv_get_symbols) | |
574 | return LDPS_ERR; | |
575 | else if (!claimfile->n_syms_used) | |
576 | continue; | |
577 | rv = tv_get_symbols (claimfile->file.handle, claimfile->n_syms_used, | |
578 | claimfile->symbols); | |
579 | if (rv != LDPS_OK) | |
580 | return rv; | |
581 | for (n = 0; n < claimfile->n_syms_used; n++) | |
ada487f6 L |
582 | TV_MESSAGE (LDPL_INFO, "Sym: '%s%s%s' Resolution: %s", |
583 | claimfile->symbols[n].name, | |
584 | claimfile->symbols[n].version ? "@" : "", | |
585 | (claimfile->symbols[n].version | |
586 | ? claimfile->symbols[n].version : ""), | |
587 | resolutions[claimfile->symbols[n].resolution]); | |
5d3236ee DK |
588 | } |
589 | for ( ; addfile ; addfile = addfile->next) | |
590 | { | |
591 | enum ld_plugin_status rv; | |
592 | if (addfile->type == ADD_LIB && tv_add_input_library) | |
593 | rv = (*tv_add_input_library) (addfile->name); | |
594 | else if (addfile->type == ADD_FILE && tv_add_input_file) | |
595 | rv = (*tv_add_input_file) (addfile->name); | |
596 | else if (addfile->type == ADD_DIR && tv_set_extra_library_path) | |
597 | rv = (*tv_set_extra_library_path) (addfile->name); | |
598 | else | |
599 | rv = LDPS_ERR; | |
600 | if (rv != LDPS_OK) | |
601 | return rv; | |
602 | } | |
603 | fflush (NULL); | |
604 | return all_symbols_read_ret; | |
605 | } | |
606 | ||
607 | /* Standard plugin API registerable hook. */ | |
608 | static enum ld_plugin_status | |
609 | oncleanup (void) | |
610 | { | |
ada487f6 | 611 | TV_MESSAGE (LDPL_INFO, "hook called: cleanup."); |
5d3236ee DK |
612 | fflush (NULL); |
613 | return cleanup_ret; | |
614 | } |