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26f8db7d ORL |
1 | /* |
2 | * tramp.c | |
3 | * | |
4 | * DSP-BIOS Bridge driver support functions for TI OMAP processors. | |
5 | * | |
6 | * Copyright (C) 2009 Texas Instruments, Inc. | |
7 | * | |
8 | * This package is free software; you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License version 2 as | |
10 | * published by the Free Software Foundation. | |
11 | * | |
12 | * THIS PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR | |
13 | * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED | |
14 | * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. | |
15 | */ | |
16 | ||
17 | #include "header.h" | |
18 | ||
19 | #if TMS32060 | |
20 | #include "tramp_table_c6000.c" | |
21 | #endif | |
22 | ||
23 | #define MAX_RELOS_PER_PASS 4 | |
24 | ||
25 | /* | |
26 | * Function: priv_tramp_sect_tgt_alloc | |
27 | * Description: Allocate target memory for the trampoline section. The | |
28 | * target mem size is easily obtained as the next available address. | |
29 | */ | |
30 | static int priv_tramp_sect_tgt_alloc(struct dload_state *dlthis) | |
31 | { | |
32 | int ret_val = 0; | |
33 | struct ldr_section_info *sect_info; | |
34 | ||
35 | /* Populate the trampoline loader section and allocate it on the | |
36 | * target. The section name is ALWAYS the first string in the final | |
37 | * string table for trampolines. The trampoline section is always | |
38 | * 1 beyond the total number of allocated sections. */ | |
39 | sect_info = &dlthis->ldr_sections[dlthis->allocated_secn_count]; | |
40 | ||
41 | sect_info->name = dlthis->tramp.final_string_table; | |
42 | sect_info->size = dlthis->tramp.tramp_sect_next_addr; | |
43 | sect_info->context = 0; | |
44 | sect_info->type = | |
45 | (4 << 8) | DLOAD_TEXT | DS_ALLOCATE_MASK | DS_DOWNLOAD_MASK; | |
46 | sect_info->page = 0; | |
47 | sect_info->run_addr = 0; | |
48 | sect_info->load_addr = 0; | |
49 | ret_val = dlthis->myalloc->dload_allocate(dlthis->myalloc, | |
50 | sect_info, | |
a563510f | 51 | ds_alignment |
26f8db7d ORL |
52 | (sect_info->type)); |
53 | ||
54 | if (ret_val == 0) | |
55 | dload_error(dlthis, "Failed to allocate target memory for" | |
56 | " trampoline"); | |
57 | ||
58 | return ret_val; | |
59 | } | |
60 | ||
61 | /* | |
62 | * Function: priv_h2a | |
63 | * Description: Helper function to convert a hex value to its ASCII | |
64 | * representation. Used for trampoline symbol name generation. | |
65 | */ | |
66 | static u8 priv_h2a(u8 value) | |
67 | { | |
68 | if (value > 0xF) | |
69 | return 0xFF; | |
70 | ||
71 | if (value <= 9) | |
72 | value += 0x30; | |
73 | else | |
74 | value += 0x37; | |
75 | ||
76 | return value; | |
77 | } | |
78 | ||
79 | /* | |
80 | * Function: priv_tramp_sym_gen_name | |
81 | * Description: Generate a trampoline symbol name (ASCII) using the value | |
82 | * of the symbol. This places the new name into the user buffer. | |
83 | * The name is fixed in length and of the form: __$dbTR__xxxxxxxx | |
0142919c | 84 | * (where "xxxxxxxx" is the hex value). |
26f8db7d ORL |
85 | */ |
86 | static void priv_tramp_sym_gen_name(u32 value, char *dst) | |
87 | { | |
88 | u32 i; | |
b3c8aef0 ER |
89 | char *prefix = TRAMP_SYM_PREFIX; |
90 | char *dst_local = dst; | |
26f8db7d ORL |
91 | u8 tmp; |
92 | ||
93 | /* Clear out the destination, including the ending NULL */ | |
94 | for (i = 0; i < (TRAMP_SYM_PREFIX_LEN + TRAMP_SYM_HEX_ASCII_LEN); i++) | |
95 | *(dst_local + i) = 0; | |
96 | ||
97 | /* Copy the prefix to start */ | |
98 | for (i = 0; i < strlen(TRAMP_SYM_PREFIX); i++) { | |
99 | *dst_local = *(prefix + i); | |
100 | dst_local++; | |
101 | } | |
102 | ||
103 | /* Now convert the value passed in to a string equiv of the hex */ | |
104 | for (i = 0; i < sizeof(value); i++) { | |
105 | #ifndef _BIG_ENDIAN | |
106 | tmp = *(((u8 *) &value) + (sizeof(value) - 1) - i); | |
107 | *dst_local = priv_h2a((tmp & 0xF0) >> 4); | |
108 | dst_local++; | |
109 | *dst_local = priv_h2a(tmp & 0x0F); | |
110 | dst_local++; | |
111 | #else | |
112 | tmp = *(((u8 *) &value) + i); | |
113 | *dst_local = priv_h2a((tmp & 0xF0) >> 4); | |
114 | dst_local++; | |
115 | *dst_local = priv_h2a(tmp & 0x0F); | |
116 | dst_local++; | |
117 | #endif | |
118 | } | |
119 | ||
120 | /* NULL terminate */ | |
121 | *dst_local = 0; | |
122 | } | |
123 | ||
124 | /* | |
125 | * Function: priv_tramp_string_create | |
126 | * Description: Create a new string specific to the trampoline loading and add | |
127 | * it to the trampoline string list. This list contains the | |
128 | * trampoline section name and trampoline point symbols. | |
129 | */ | |
130 | static struct tramp_string *priv_tramp_string_create(struct dload_state *dlthis, | |
131 | u32 str_len, char *str) | |
132 | { | |
133 | struct tramp_string *new_string = NULL; | |
134 | u32 i; | |
135 | ||
136 | /* Create a new string object with the specified size. */ | |
137 | new_string = | |
138 | (struct tramp_string *)dlthis->mysym->dload_allocate(dlthis->mysym, | |
139 | (sizeof | |
140 | (struct | |
141 | tramp_string) | |
142 | + str_len + | |
143 | 1)); | |
144 | if (new_string != NULL) { | |
145 | /* Clear the string first. This ensures the ending NULL is | |
146 | * present and the optimizer won't touch it. */ | |
147 | for (i = 0; i < (sizeof(struct tramp_string) + str_len + 1); | |
148 | i++) | |
149 | *((u8 *) new_string + i) = 0; | |
150 | ||
151 | /* Add this string to our virtual table by assigning it the | |
152 | * next index and pushing it to the tail of the list. */ | |
153 | new_string->index = dlthis->tramp.tramp_string_next_index; | |
154 | dlthis->tramp.tramp_string_next_index++; | |
155 | dlthis->tramp.tramp_string_size += str_len + 1; | |
156 | ||
157 | new_string->next = NULL; | |
158 | if (dlthis->tramp.string_head == NULL) | |
159 | dlthis->tramp.string_head = new_string; | |
160 | else | |
161 | dlthis->tramp.string_tail->next = new_string; | |
162 | ||
163 | dlthis->tramp.string_tail = new_string; | |
164 | ||
165 | /* Copy the string over to the new object */ | |
166 | for (i = 0; i < str_len; i++) | |
167 | new_string->str[i] = str[i]; | |
168 | } | |
169 | ||
170 | return new_string; | |
171 | } | |
172 | ||
173 | /* | |
174 | * Function: priv_tramp_string_find | |
175 | * Description: Walk the trampoline string list and find a match for the | |
176 | * provided string. If not match is found, NULL is returned. | |
177 | */ | |
178 | static struct tramp_string *priv_tramp_string_find(struct dload_state *dlthis, | |
179 | char *str) | |
180 | { | |
181 | struct tramp_string *cur_str = NULL; | |
182 | struct tramp_string *ret_val = NULL; | |
183 | u32 i; | |
184 | u32 str_len = strlen(str); | |
185 | ||
186 | for (cur_str = dlthis->tramp.string_head; | |
187 | (ret_val == NULL) && (cur_str != NULL); cur_str = cur_str->next) { | |
188 | /* If the string lengths aren't equal, don't bother | |
189 | * comparing */ | |
190 | if (str_len != strlen(cur_str->str)) | |
191 | continue; | |
192 | ||
193 | /* Walk the strings until one of them ends */ | |
194 | for (i = 0; i < str_len; i++) { | |
195 | /* If they don't match in the current position then | |
196 | * break out now, no sense in continuing to look at | |
197 | * this string. */ | |
198 | if (str[i] != cur_str->str[i]) | |
199 | break; | |
200 | } | |
201 | ||
202 | if (i == str_len) | |
203 | ret_val = cur_str; | |
204 | } | |
205 | ||
206 | return ret_val; | |
207 | } | |
208 | ||
209 | /* | |
210 | * Function: priv_string_tbl_finalize | |
211 | * Description: Flatten the trampoline string list into a table of NULL | |
212 | * terminated strings. This is the same format of string table | |
213 | * as used by the COFF/DOFF file. | |
214 | */ | |
215 | static int priv_string_tbl_finalize(struct dload_state *dlthis) | |
216 | { | |
217 | int ret_val = 0; | |
218 | struct tramp_string *cur_string; | |
219 | char *cur_loc; | |
220 | char *tmp; | |
221 | ||
222 | /* Allocate enough space for all strings that have been created. The | |
223 | * table is simply all strings concatenated together will NULL | |
224 | * endings. */ | |
225 | dlthis->tramp.final_string_table = | |
226 | (char *)dlthis->mysym->dload_allocate(dlthis->mysym, | |
227 | dlthis->tramp. | |
228 | tramp_string_size); | |
229 | if (dlthis->tramp.final_string_table != NULL) { | |
230 | /* We got our buffer, walk the list and release the nodes as* | |
231 | * we go */ | |
232 | cur_loc = dlthis->tramp.final_string_table; | |
233 | cur_string = dlthis->tramp.string_head; | |
234 | while (cur_string != NULL) { | |
235 | /* Move the head/tail pointers */ | |
236 | dlthis->tramp.string_head = cur_string->next; | |
237 | if (dlthis->tramp.string_tail == cur_string) | |
238 | dlthis->tramp.string_tail = NULL; | |
239 | ||
240 | /* Copy the string contents */ | |
241 | for (tmp = cur_string->str; | |
242 | *tmp != '\0'; tmp++, cur_loc++) | |
243 | *cur_loc = *tmp; | |
244 | ||
245 | /* Pick up the NULL termination since it was missed by | |
246 | * breaking using it to end the above loop. */ | |
247 | *cur_loc = '\0'; | |
248 | cur_loc++; | |
249 | ||
250 | /* Free the string node, we don't need it any more. */ | |
251 | dlthis->mysym->dload_deallocate(dlthis->mysym, | |
252 | cur_string); | |
253 | ||
254 | /* Move our pointer to the next one */ | |
255 | cur_string = dlthis->tramp.string_head; | |
256 | } | |
257 | ||
258 | /* Update our return value to success */ | |
259 | ret_val = 1; | |
260 | } else | |
261 | dload_error(dlthis, "Failed to allocate trampoline " | |
262 | "string table"); | |
263 | ||
264 | return ret_val; | |
265 | } | |
266 | ||
267 | /* | |
268 | * Function: priv_tramp_sect_alloc | |
269 | * Description: Virtually allocate space from the trampoline section. This | |
270 | * function returns the next offset within the trampoline section | |
271 | * that is available and moved the next available offset by the | |
272 | * requested size. NO TARGET ALLOCATION IS DONE AT THIS TIME. | |
273 | */ | |
274 | static u32 priv_tramp_sect_alloc(struct dload_state *dlthis, u32 tramp_size) | |
275 | { | |
276 | u32 ret_val; | |
277 | ||
278 | /* If the next available address is 0, this is our first allocation. | |
279 | * Create a section name string to go into the string table . */ | |
280 | if (dlthis->tramp.tramp_sect_next_addr == 0) { | |
281 | dload_syms_error(dlthis->mysym, "*** WARNING *** created " | |
282 | "dynamic TRAMPOLINE section for module %s", | |
283 | dlthis->str_head); | |
284 | } | |
285 | ||
286 | /* Reserve space for the new trampoline */ | |
287 | ret_val = dlthis->tramp.tramp_sect_next_addr; | |
288 | dlthis->tramp.tramp_sect_next_addr += tramp_size; | |
289 | return ret_val; | |
290 | } | |
291 | ||
292 | /* | |
293 | * Function: priv_tramp_sym_create | |
294 | * Description: Allocate and create a new trampoline specific symbol and add | |
295 | * it to the trampoline symbol list. These symbols will include | |
296 | * trampoline points as well as the external symbols they | |
297 | * reference. | |
298 | */ | |
299 | static struct tramp_sym *priv_tramp_sym_create(struct dload_state *dlthis, | |
300 | u32 str_index, | |
301 | struct local_symbol *tmp_sym) | |
302 | { | |
303 | struct tramp_sym *new_sym = NULL; | |
304 | u32 i; | |
305 | ||
306 | /* Allocate new space for the symbol in the symbol table. */ | |
307 | new_sym = | |
308 | (struct tramp_sym *)dlthis->mysym->dload_allocate(dlthis->mysym, | |
309 | sizeof(struct tramp_sym)); | |
310 | if (new_sym != NULL) { | |
311 | for (i = 0; i != sizeof(struct tramp_sym); i++) | |
312 | *((char *)new_sym + i) = 0; | |
313 | ||
314 | /* Assign this symbol the next symbol index for easier | |
315 | * reference later during relocation. */ | |
316 | new_sym->index = dlthis->tramp.tramp_sym_next_index; | |
317 | dlthis->tramp.tramp_sym_next_index++; | |
318 | ||
319 | /* Populate the symbol information. At this point any | |
320 | * trampoline symbols will be the offset location, not the | |
321 | * final. Copy over the symbol info to start, then be sure to | |
322 | * get the string index from the trampoline string table. */ | |
323 | new_sym->sym_info = *tmp_sym; | |
324 | new_sym->str_index = str_index; | |
325 | ||
326 | /* Push the new symbol to the tail of the symbol table list */ | |
327 | new_sym->next = NULL; | |
328 | if (dlthis->tramp.symbol_head == NULL) | |
329 | dlthis->tramp.symbol_head = new_sym; | |
330 | else | |
331 | dlthis->tramp.symbol_tail->next = new_sym; | |
332 | ||
333 | dlthis->tramp.symbol_tail = new_sym; | |
334 | } | |
335 | ||
336 | return new_sym; | |
337 | } | |
338 | ||
339 | /* | |
340 | * Function: priv_tramp_sym_get | |
341 | * Description: Search for the symbol with the matching string index (from | |
342 | * the trampoline string table) and return the trampoline | |
343 | * symbol object, if found. Otherwise return NULL. | |
344 | */ | |
345 | static struct tramp_sym *priv_tramp_sym_get(struct dload_state *dlthis, | |
346 | u32 string_index) | |
347 | { | |
348 | struct tramp_sym *sym_found = NULL; | |
349 | ||
350 | /* Walk the symbol table list and search vs. the string index */ | |
351 | for (sym_found = dlthis->tramp.symbol_head; | |
352 | sym_found != NULL; sym_found = sym_found->next) { | |
353 | if (sym_found->str_index == string_index) | |
354 | break; | |
355 | } | |
356 | ||
357 | return sym_found; | |
358 | } | |
359 | ||
360 | /* | |
361 | * Function: priv_tramp_sym_find | |
362 | * Description: Search for a trampoline symbol based on the string name of | |
363 | * the symbol. Return the symbol object, if found, otherwise | |
364 | * return NULL. | |
365 | */ | |
366 | static struct tramp_sym *priv_tramp_sym_find(struct dload_state *dlthis, | |
367 | char *string) | |
368 | { | |
369 | struct tramp_sym *sym_found = NULL; | |
370 | struct tramp_string *str_found = NULL; | |
371 | ||
372 | /* First, search for the string, then search for the sym based on the | |
373 | string index. */ | |
374 | str_found = priv_tramp_string_find(dlthis, string); | |
375 | if (str_found != NULL) | |
376 | sym_found = priv_tramp_sym_get(dlthis, str_found->index); | |
377 | ||
378 | return sym_found; | |
379 | } | |
380 | ||
381 | /* | |
382 | * Function: priv_tramp_sym_finalize | |
383 | * Description: Allocate a flat symbol table for the trampoline section, | |
384 | * put each trampoline symbol into the table, adjust the | |
385 | * symbol value based on the section address on the target and | |
386 | * free the trampoline symbol list nodes. | |
387 | */ | |
388 | static int priv_tramp_sym_finalize(struct dload_state *dlthis) | |
389 | { | |
390 | int ret_val = 0; | |
391 | struct tramp_sym *cur_sym; | |
392 | struct ldr_section_info *tramp_sect = | |
393 | &dlthis->ldr_sections[dlthis->allocated_secn_count]; | |
394 | struct local_symbol *new_sym; | |
395 | ||
396 | /* Allocate a table to hold a flattened version of all symbols | |
397 | * created. */ | |
398 | dlthis->tramp.final_sym_table = | |
399 | (struct local_symbol *)dlthis->mysym->dload_allocate(dlthis->mysym, | |
400 | (sizeof(struct local_symbol) * dlthis->tramp. | |
401 | tramp_sym_next_index)); | |
402 | if (dlthis->tramp.final_sym_table != NULL) { | |
403 | /* Walk the list of all symbols, copy it over to the flattened | |
404 | * table. After it has been copied, the node can be freed as | |
405 | * it is no longer needed. */ | |
406 | new_sym = dlthis->tramp.final_sym_table; | |
407 | cur_sym = dlthis->tramp.symbol_head; | |
408 | while (cur_sym != NULL) { | |
409 | /* Pop it off the list */ | |
410 | dlthis->tramp.symbol_head = cur_sym->next; | |
411 | if (cur_sym == dlthis->tramp.symbol_tail) | |
412 | dlthis->tramp.symbol_tail = NULL; | |
413 | ||
414 | /* Copy the symbol contents into the flat table */ | |
415 | *new_sym = cur_sym->sym_info; | |
416 | ||
0142919c | 417 | /* Now finalize the symbol. If it is in the tramp |
26f8db7d ORL |
418 | * section, we need to adjust for the section start. |
419 | * If it is external then we don't need to adjust at | |
420 | * all. | |
421 | * NOTE: THIS CODE ASSUMES THAT THE TRAMPOLINE IS | |
422 | * REFERENCED LIKE A CALL TO AN EXTERNAL SO VALUE AND | |
423 | * DELTA ARE THE SAME. SEE THE FUNCTION dload_symbols | |
424 | * WHERE DN_UNDEF IS HANDLED FOR MORE REFERENCE. */ | |
425 | if (new_sym->secnn < 0) { | |
426 | new_sym->value += tramp_sect->load_addr; | |
427 | new_sym->delta = new_sym->value; | |
428 | } | |
429 | ||
430 | /* Let go of the symbol node */ | |
431 | dlthis->mysym->dload_deallocate(dlthis->mysym, cur_sym); | |
432 | ||
433 | /* Move to the next node */ | |
434 | cur_sym = dlthis->tramp.symbol_head; | |
435 | new_sym++; | |
436 | } | |
437 | ||
438 | ret_val = 1; | |
439 | } else | |
440 | dload_error(dlthis, "Failed to alloc trampoline sym table"); | |
441 | ||
442 | return ret_val; | |
443 | } | |
444 | ||
445 | /* | |
446 | * Function: priv_tgt_img_gen | |
447 | * Description: Allocate storage for and copy the target specific image data | |
448 | * and fix up its relocations for the new external symbol. If | |
449 | * a trampoline image packet was successfully created it is added | |
450 | * to the trampoline list. | |
451 | */ | |
452 | static int priv_tgt_img_gen(struct dload_state *dlthis, u32 base, | |
453 | u32 gen_index, struct tramp_sym *new_ext_sym) | |
454 | { | |
455 | struct tramp_img_pkt *new_img_pkt = NULL; | |
456 | u32 i; | |
457 | u32 pkt_size = tramp_img_pkt_size_get(); | |
458 | u8 *gen_tbl_entry; | |
459 | u8 *pkt_data; | |
460 | struct reloc_record_t *cur_relo; | |
461 | int ret_val = 0; | |
462 | ||
463 | /* Allocate a new image packet and set it up. */ | |
464 | new_img_pkt = | |
465 | (struct tramp_img_pkt *)dlthis->mysym->dload_allocate(dlthis->mysym, | |
466 | pkt_size); | |
467 | if (new_img_pkt != NULL) { | |
468 | /* Save the base, this is where it goes in the section */ | |
469 | new_img_pkt->base = base; | |
470 | ||
471 | /* Copy over the image data and relos from the target table */ | |
472 | pkt_data = (u8 *) &new_img_pkt->hdr; | |
473 | gen_tbl_entry = (u8 *) &tramp_gen_info[gen_index]; | |
474 | for (i = 0; i < pkt_size; i++) { | |
475 | *pkt_data = *gen_tbl_entry; | |
476 | pkt_data++; | |
477 | gen_tbl_entry++; | |
478 | } | |
479 | ||
480 | /* Update the relocations to point to the external symbol */ | |
481 | cur_relo = | |
482 | (struct reloc_record_t *)((u8 *) &new_img_pkt->hdr + | |
483 | new_img_pkt->hdr.relo_offset); | |
484 | for (i = 0; i < new_img_pkt->hdr.num_relos; i++) | |
485 | cur_relo[i].SYMNDX = new_ext_sym->index; | |
486 | ||
487 | /* Add it to the trampoline list. */ | |
488 | new_img_pkt->next = dlthis->tramp.tramp_pkts; | |
489 | dlthis->tramp.tramp_pkts = new_img_pkt; | |
490 | ||
491 | ret_val = 1; | |
492 | } | |
493 | ||
494 | return ret_val; | |
495 | } | |
496 | ||
497 | /* | |
498 | * Function: priv_pkt_relo | |
499 | * Description: Take the provided image data and the collection of relocations | |
500 | * for it and perform the relocations. Note that all relocations | |
501 | * at this stage are considered SECOND PASS since the original | |
502 | * image has already been processed in the first pass. This means | |
503 | * TRAMPOLINES ARE TREATED AS 2ND PASS even though this is really | |
504 | * the first (and only) relocation that will be performed on them. | |
505 | */ | |
506 | static int priv_pkt_relo(struct dload_state *dlthis, tgt_au_t * data, | |
507 | struct reloc_record_t *rp[], u32 relo_count) | |
508 | { | |
509 | int ret_val = 1; | |
510 | u32 i; | |
511 | bool tmp; | |
512 | ||
513 | /* Walk through all of the relos and process them. This function is | |
514 | * the equivalent of relocate_packet() from cload.c, but specialized | |
515 | * for trampolines and 2nd phase relocations. */ | |
516 | for (i = 0; i < relo_count; i++) | |
517 | dload_relocate(dlthis, data, rp[i], &tmp, true); | |
518 | ||
519 | return ret_val; | |
520 | } | |
521 | ||
522 | /* | |
523 | * Function: priv_tramp_pkt_finalize | |
524 | * Description: Walk the list of all trampoline packets and finalize them. | |
525 | * Each trampoline image packet will be relocated now that the | |
526 | * trampoline section has been allocated on the target. Once | |
527 | * all of the relocations are done the trampoline image data | |
528 | * is written into target memory and the trampoline packet | |
529 | * is freed: it is no longer needed after this point. | |
530 | */ | |
531 | static int priv_tramp_pkt_finalize(struct dload_state *dlthis) | |
532 | { | |
533 | int ret_val = 1; | |
534 | struct tramp_img_pkt *cur_pkt = NULL; | |
535 | struct reloc_record_t *relos[MAX_RELOS_PER_PASS]; | |
536 | u32 relos_done; | |
537 | u32 i; | |
538 | struct reloc_record_t *cur_relo; | |
539 | struct ldr_section_info *sect_info = | |
540 | &dlthis->ldr_sections[dlthis->allocated_secn_count]; | |
541 | ||
542 | /* Walk the list of trampoline packets and relocate each packet. This | |
543 | * function is the trampoline equivalent of dload_data() from | |
544 | * cload.c. */ | |
545 | cur_pkt = dlthis->tramp.tramp_pkts; | |
546 | while ((ret_val != 0) && (cur_pkt != NULL)) { | |
547 | /* Remove the pkt from the list */ | |
548 | dlthis->tramp.tramp_pkts = cur_pkt->next; | |
549 | ||
550 | /* Setup section and image offset information for the relo */ | |
551 | dlthis->image_secn = sect_info; | |
552 | dlthis->image_offset = cur_pkt->base; | |
553 | dlthis->delta_runaddr = sect_info->run_addr; | |
554 | ||
555 | /* Walk through all relos for the packet */ | |
556 | relos_done = 0; | |
557 | cur_relo = (struct reloc_record_t *)((u8 *) &cur_pkt->hdr + | |
558 | cur_pkt->hdr.relo_offset); | |
559 | while (relos_done < cur_pkt->hdr.num_relos) { | |
560 | #ifdef ENABLE_TRAMP_DEBUG | |
561 | dload_syms_error(dlthis->mysym, | |
562 | "===> Trampoline %x branches to %x", | |
563 | sect_info->run_addr + | |
564 | dlthis->image_offset, | |
565 | dlthis-> | |
566 | tramp.final_sym_table[cur_relo-> | |
567 | SYMNDX].value); | |
568 | #endif | |
569 | ||
570 | for (i = 0; | |
571 | ((i < MAX_RELOS_PER_PASS) && | |
572 | ((i + relos_done) < cur_pkt->hdr.num_relos)); i++) | |
573 | relos[i] = cur_relo + i; | |
574 | ||
575 | /* Do the actual relo */ | |
576 | ret_val = priv_pkt_relo(dlthis, | |
577 | (tgt_au_t *) &cur_pkt->payload, | |
578 | relos, i); | |
579 | if (ret_val == 0) { | |
580 | dload_error(dlthis, | |
581 | "Relocation of trampoline pkt at %x" | |
582 | " failed", cur_pkt->base + | |
583 | sect_info->run_addr); | |
584 | break; | |
585 | } | |
586 | ||
587 | relos_done += i; | |
588 | cur_relo += i; | |
589 | } | |
590 | ||
591 | /* Make sure we didn't hit a problem */ | |
592 | if (ret_val != 0) { | |
593 | /* Relos are done for the packet, write it to the | |
594 | * target */ | |
595 | ret_val = dlthis->myio->writemem(dlthis->myio, | |
596 | &cur_pkt->payload, | |
597 | sect_info->load_addr + | |
598 | cur_pkt->base, | |
599 | sect_info, | |
600 | BYTE_TO_HOST | |
601 | (cur_pkt->hdr. | |
602 | tramp_code_size)); | |
603 | if (ret_val == 0) { | |
604 | dload_error(dlthis, | |
605 | "Write to " FMT_UI32 " failed", | |
606 | sect_info->load_addr + | |
607 | cur_pkt->base); | |
608 | } | |
609 | ||
610 | /* Done with the pkt, let it go */ | |
611 | dlthis->mysym->dload_deallocate(dlthis->mysym, cur_pkt); | |
612 | ||
613 | /* Get the next packet to process */ | |
614 | cur_pkt = dlthis->tramp.tramp_pkts; | |
615 | } | |
616 | } | |
617 | ||
618 | return ret_val; | |
619 | } | |
620 | ||
621 | /* | |
622 | * Function: priv_dup_pkt_finalize | |
623 | * Description: Walk the list of duplicate image packets and finalize them. | |
624 | * Each duplicate packet will be relocated again for the | |
625 | * relocations that previously failed and have been adjusted | |
626 | * to point at a trampoline. Once all relocations for a packet | |
627 | * have been done, write the packet into target memory. The | |
628 | * duplicate packet and its relocation chain are all freed | |
629 | * after use here as they are no longer needed after this. | |
630 | */ | |
631 | static int priv_dup_pkt_finalize(struct dload_state *dlthis) | |
632 | { | |
633 | int ret_val = 1; | |
634 | struct tramp_img_dup_pkt *cur_pkt; | |
635 | struct tramp_img_dup_relo *cur_relo; | |
636 | struct reloc_record_t *relos[MAX_RELOS_PER_PASS]; | |
637 | struct doff_scnhdr_t *sect_hdr = NULL; | |
638 | s32 i; | |
639 | ||
640 | /* Similar to the trampoline pkt finalize, this function walks each dup | |
641 | * pkt that was generated and performs all relocations that were | |
642 | * deferred to a 2nd pass. This is the equivalent of dload_data() from | |
643 | * cload.c, but does not need the additional reorder and checksum | |
644 | * processing as it has already been done. */ | |
645 | cur_pkt = dlthis->tramp.dup_pkts; | |
646 | while ((ret_val != 0) && (cur_pkt != NULL)) { | |
647 | /* Remove the node from the list, we'll be freeing it | |
648 | * shortly */ | |
649 | dlthis->tramp.dup_pkts = cur_pkt->next; | |
650 | ||
651 | /* Setup the section and image offset for relocation */ | |
652 | dlthis->image_secn = &dlthis->ldr_sections[cur_pkt->secnn]; | |
653 | dlthis->image_offset = cur_pkt->offset; | |
654 | ||
655 | /* In order to get the delta run address, we need to reference | |
656 | * the original section header. It's a bit ugly, but needed | |
657 | * for relo. */ | |
658 | i = (s32) (dlthis->image_secn - dlthis->ldr_sections); | |
659 | sect_hdr = dlthis->sect_hdrs + i; | |
660 | dlthis->delta_runaddr = sect_hdr->ds_paddr; | |
661 | ||
662 | /* Walk all relos in the chain and process each. */ | |
663 | cur_relo = cur_pkt->relo_chain; | |
664 | while (cur_relo != NULL) { | |
665 | /* Process them a chunk at a time to be efficient */ | |
666 | for (i = 0; (i < MAX_RELOS_PER_PASS) | |
667 | && (cur_relo != NULL); | |
668 | i++, cur_relo = cur_relo->next) { | |
669 | relos[i] = &cur_relo->relo; | |
670 | cur_pkt->relo_chain = cur_relo->next; | |
671 | } | |
672 | ||
673 | /* Do the actual relo */ | |
674 | ret_val = priv_pkt_relo(dlthis, | |
675 | cur_pkt->img_pkt.img_data, | |
676 | relos, i); | |
677 | if (ret_val == 0) { | |
678 | dload_error(dlthis, | |
679 | "Relocation of dup pkt at %x" | |
680 | " failed", cur_pkt->offset + | |
681 | dlthis->image_secn->run_addr); | |
682 | break; | |
683 | } | |
684 | ||
685 | /* Release all of these relos, we're done with them */ | |
686 | while (i > 0) { | |
687 | dlthis->mysym->dload_deallocate(dlthis->mysym, | |
688 | GET_CONTAINER | |
689 | (relos[i - 1], | |
690 | struct tramp_img_dup_relo, | |
691 | relo)); | |
692 | i--; | |
693 | } | |
694 | ||
695 | /* DO NOT ADVANCE cur_relo, IT IS ALREADY READY TO | |
696 | * GO! */ | |
697 | } | |
698 | ||
699 | /* Done with all relos. Make sure we didn't have a problem and | |
700 | * write it out to the target */ | |
701 | if (ret_val != 0) { | |
702 | ret_val = dlthis->myio->writemem(dlthis->myio, | |
703 | cur_pkt->img_pkt. | |
704 | img_data, | |
705 | dlthis->image_secn-> | |
706 | load_addr + | |
707 | cur_pkt->offset, | |
708 | dlthis->image_secn, | |
709 | BYTE_TO_HOST | |
710 | (cur_pkt->img_pkt. | |
711 | packet_size)); | |
712 | if (ret_val == 0) { | |
713 | dload_error(dlthis, | |
714 | "Write to " FMT_UI32 " failed", | |
715 | dlthis->image_secn->load_addr + | |
716 | cur_pkt->offset); | |
717 | } | |
718 | ||
719 | dlthis->mysym->dload_deallocate(dlthis->mysym, cur_pkt); | |
720 | ||
721 | /* Advance to the next packet */ | |
722 | cur_pkt = dlthis->tramp.dup_pkts; | |
723 | } | |
724 | } | |
725 | ||
726 | return ret_val; | |
727 | } | |
728 | ||
729 | /* | |
730 | * Function: priv_dup_find | |
731 | * Description: Walk the list of existing duplicate packets and find a | |
732 | * match based on the section number and image offset. Return | |
733 | * the duplicate packet if found, otherwise NULL. | |
734 | */ | |
735 | static struct tramp_img_dup_pkt *priv_dup_find(struct dload_state *dlthis, | |
736 | s16 secnn, u32 image_offset) | |
737 | { | |
738 | struct tramp_img_dup_pkt *cur_pkt = NULL; | |
739 | ||
740 | for (cur_pkt = dlthis->tramp.dup_pkts; | |
741 | cur_pkt != NULL; cur_pkt = cur_pkt->next) { | |
742 | if ((cur_pkt->secnn == secnn) && | |
743 | (cur_pkt->offset == image_offset)) { | |
744 | /* Found a match, break out */ | |
745 | break; | |
746 | } | |
747 | } | |
748 | ||
749 | return cur_pkt; | |
750 | } | |
751 | ||
752 | /* | |
753 | * Function: priv_img_pkt_dup | |
754 | * Description: Duplicate the original image packet. If this is the first | |
755 | * time this image packet has been seen (based on section number | |
756 | * and image offset), create a new duplicate packet and add it | |
757 | * to the dup packet list. If not, just get the existing one and | |
758 | * update it with the current packet contents (since relocation | |
759 | * on the packet is still ongoing in first pass.) Create a | |
760 | * duplicate of the provided relocation, but update it to point | |
761 | * to the new trampoline symbol. Add the new relocation dup to | |
762 | * the dup packet's relo chain for 2nd pass relocation later. | |
763 | */ | |
764 | static int priv_img_pkt_dup(struct dload_state *dlthis, | |
765 | s16 secnn, u32 image_offset, | |
766 | struct image_packet_t *ipacket, | |
767 | struct reloc_record_t *rp, | |
768 | struct tramp_sym *new_tramp_sym) | |
769 | { | |
770 | struct tramp_img_dup_pkt *dup_pkt = NULL; | |
771 | u32 new_dup_size; | |
772 | s32 i; | |
773 | int ret_val = 0; | |
774 | struct tramp_img_dup_relo *dup_relo = NULL; | |
775 | ||
0142919c | 776 | /* Determine if this image packet is already being tracked in the |
26f8db7d ORL |
777 | dup list for other trampolines. */ |
778 | dup_pkt = priv_dup_find(dlthis, secnn, image_offset); | |
779 | ||
780 | if (dup_pkt == NULL) { | |
781 | /* This image packet does not exist in our tracking, so create | |
782 | * a new one and add it to the head of the list. */ | |
783 | new_dup_size = sizeof(struct tramp_img_dup_pkt) + | |
784 | ipacket->packet_size; | |
785 | ||
786 | dup_pkt = (struct tramp_img_dup_pkt *) | |
787 | dlthis->mysym->dload_allocate(dlthis->mysym, new_dup_size); | |
788 | if (dup_pkt != NULL) { | |
789 | /* Save off the section and offset information */ | |
790 | dup_pkt->secnn = secnn; | |
791 | dup_pkt->offset = image_offset; | |
792 | dup_pkt->relo_chain = NULL; | |
793 | ||
794 | /* Copy the original packet content */ | |
795 | dup_pkt->img_pkt = *ipacket; | |
796 | dup_pkt->img_pkt.img_data = (u8 *) (dup_pkt + 1); | |
797 | for (i = 0; i < ipacket->packet_size; i++) | |
798 | *(dup_pkt->img_pkt.img_data + i) = | |
799 | *(ipacket->img_data + i); | |
800 | ||
801 | /* Add the packet to the dup list */ | |
802 | dup_pkt->next = dlthis->tramp.dup_pkts; | |
803 | dlthis->tramp.dup_pkts = dup_pkt; | |
804 | } else | |
805 | dload_error(dlthis, "Failed to create dup packet!"); | |
806 | } else { | |
807 | /* The image packet contents could have changed since | |
808 | * trampoline detection happens during relocation of the image | |
809 | * packets. So, we need to update the image packet contents | |
810 | * before adding relo information. */ | |
811 | for (i = 0; i < dup_pkt->img_pkt.packet_size; i++) | |
812 | *(dup_pkt->img_pkt.img_data + i) = | |
813 | *(ipacket->img_data + i); | |
814 | } | |
815 | ||
816 | /* Since the previous code may have allocated a new dup packet for us, | |
817 | double check that we actually have one. */ | |
818 | if (dup_pkt != NULL) { | |
819 | /* Allocate a new node for the relo chain. Each image packet | |
820 | * can potentially have multiple relocations that cause a | |
821 | * trampoline to be generated. So, we keep them in a chain, | |
822 | * order is not important. */ | |
823 | dup_relo = dlthis->mysym->dload_allocate(dlthis->mysym, | |
824 | sizeof(struct tramp_img_dup_relo)); | |
825 | if (dup_relo != NULL) { | |
826 | /* Copy the relo contents, adjust for the new | |
827 | * trampoline and add it to the list. */ | |
828 | dup_relo->relo = *rp; | |
829 | dup_relo->relo.SYMNDX = new_tramp_sym->index; | |
830 | ||
831 | dup_relo->next = dup_pkt->relo_chain; | |
832 | dup_pkt->relo_chain = dup_relo; | |
833 | ||
834 | /* That's it, we're done. Make sure we update our | |
835 | * return value to be success since everything finished | |
836 | * ok */ | |
837 | ret_val = 1; | |
838 | } else | |
839 | dload_error(dlthis, "Unable to alloc dup relo"); | |
840 | } | |
841 | ||
842 | return ret_val; | |
843 | } | |
844 | ||
845 | /* | |
846 | * Function: dload_tramp_avail | |
847 | * Description: Check to see if the target supports a trampoline for this type | |
848 | * of relocation. Return true if it does, otherwise false. | |
849 | */ | |
850 | bool dload_tramp_avail(struct dload_state *dlthis, struct reloc_record_t *rp) | |
851 | { | |
852 | bool ret_val = false; | |
853 | u16 map_index; | |
854 | u16 gen_index; | |
855 | ||
856 | /* Check type hash vs. target tramp table */ | |
857 | map_index = HASH_FUNC(rp->TYPE); | |
858 | gen_index = tramp_map[map_index]; | |
859 | if (gen_index != TRAMP_NO_GEN_AVAIL) | |
860 | ret_val = true; | |
861 | ||
862 | return ret_val; | |
863 | } | |
864 | ||
865 | /* | |
866 | * Function: dload_tramp_generate | |
867 | * Description: Create a new trampoline for the provided image packet and | |
868 | * relocation causing problems. This will create the trampoline | |
869 | * as well as duplicate/update the image packet and relocation | |
870 | * causing the problem, which will be relo'd again during | |
871 | * finalization. | |
872 | */ | |
873 | int dload_tramp_generate(struct dload_state *dlthis, s16 secnn, | |
874 | u32 image_offset, struct image_packet_t *ipacket, | |
875 | struct reloc_record_t *rp) | |
876 | { | |
877 | u16 map_index; | |
878 | u16 gen_index; | |
879 | int ret_val = 1; | |
880 | char tramp_sym_str[TRAMP_SYM_PREFIX_LEN + TRAMP_SYM_HEX_ASCII_LEN]; | |
881 | struct local_symbol *ref_sym; | |
882 | struct tramp_sym *new_tramp_sym; | |
883 | struct tramp_sym *new_ext_sym; | |
884 | struct tramp_string *new_tramp_str; | |
885 | u32 new_tramp_base; | |
886 | struct local_symbol tmp_sym; | |
887 | struct local_symbol ext_tmp_sym; | |
888 | ||
889 | /* Hash the relo type to get our generator information */ | |
890 | map_index = HASH_FUNC(rp->TYPE); | |
891 | gen_index = tramp_map[map_index]; | |
892 | if (gen_index != TRAMP_NO_GEN_AVAIL) { | |
893 | /* If this is the first trampoline, create the section name in | |
894 | * our string table for debug help later. */ | |
895 | if (dlthis->tramp.string_head == NULL) { | |
896 | priv_tramp_string_create(dlthis, | |
897 | strlen(TRAMP_SECT_NAME), | |
898 | TRAMP_SECT_NAME); | |
899 | } | |
900 | #ifdef ENABLE_TRAMP_DEBUG | |
901 | dload_syms_error(dlthis->mysym, | |
902 | "Trampoline at img loc %x, references %x", | |
903 | dlthis->ldr_sections[secnn].run_addr + | |
904 | image_offset + rp->vaddr, | |
905 | dlthis->local_symtab[rp->SYMNDX].value); | |
906 | #endif | |
907 | ||
908 | /* Generate the trampoline string, check if already defined. | |
909 | * If the relo symbol index is -1, it means we need the section | |
910 | * info for relo later. To do this we'll dummy up a symbol | |
911 | * with the section delta and run addresses. */ | |
912 | if (rp->SYMNDX == -1) { | |
913 | ext_tmp_sym.value = | |
914 | dlthis->ldr_sections[secnn].run_addr; | |
915 | ext_tmp_sym.delta = dlthis->sect_hdrs[secnn].ds_paddr; | |
916 | ref_sym = &ext_tmp_sym; | |
917 | } else | |
918 | ref_sym = &(dlthis->local_symtab[rp->SYMNDX]); | |
919 | ||
920 | priv_tramp_sym_gen_name(ref_sym->value, tramp_sym_str); | |
921 | new_tramp_sym = priv_tramp_sym_find(dlthis, tramp_sym_str); | |
922 | if (new_tramp_sym == NULL) { | |
923 | /* If tramp string not defined, create it and a new | |
924 | * string, and symbol for it as well as the original | |
925 | * symbol which caused the trampoline. */ | |
926 | new_tramp_str = priv_tramp_string_create(dlthis, | |
927 | strlen | |
928 | (tramp_sym_str), | |
929 | tramp_sym_str); | |
930 | if (new_tramp_str == NULL) { | |
931 | dload_error(dlthis, "Failed to create new " | |
932 | "trampoline string\n"); | |
933 | ret_val = 0; | |
934 | } else { | |
935 | /* Allocate tramp section space for the new | |
936 | * tramp from the target */ | |
937 | new_tramp_base = priv_tramp_sect_alloc(dlthis, | |
938 | tramp_size_get()); | |
939 | ||
940 | /* We have a string, create the new symbol and | |
941 | * duplicate the external. */ | |
942 | tmp_sym.value = new_tramp_base; | |
943 | tmp_sym.delta = 0; | |
944 | tmp_sym.secnn = -1; | |
945 | tmp_sym.sclass = 0; | |
946 | new_tramp_sym = priv_tramp_sym_create(dlthis, | |
947 | new_tramp_str-> | |
948 | index, | |
949 | &tmp_sym); | |
950 | ||
951 | new_ext_sym = priv_tramp_sym_create(dlthis, -1, | |
952 | ref_sym); | |
953 | ||
954 | if ((new_tramp_sym != NULL) && | |
955 | (new_ext_sym != NULL)) { | |
956 | /* Call the image generator to get the | |
957 | * new image data and fix up its | |
958 | * relocations for the external | |
959 | * symbol. */ | |
960 | ret_val = priv_tgt_img_gen(dlthis, | |
961 | new_tramp_base, | |
962 | gen_index, | |
963 | new_ext_sym); | |
964 | ||
965 | /* Add generated image data to tramp | |
966 | * image list */ | |
967 | if (ret_val != 1) { | |
968 | dload_error(dlthis, "Failed to " | |
969 | "create img pkt for" | |
970 | " trampoline\n"); | |
971 | } | |
972 | } else { | |
973 | dload_error(dlthis, "Failed to create " | |
974 | "new tramp syms " | |
975 | "(%8.8X, %8.8X)\n", | |
976 | new_tramp_sym, new_ext_sym); | |
977 | ret_val = 0; | |
978 | } | |
979 | } | |
980 | } | |
981 | ||
982 | /* Duplicate the image data and relo record that caused the | |
983 | * tramp, including update the relo data to point to the tramp | |
984 | * symbol. */ | |
985 | if (ret_val == 1) { | |
986 | ret_val = priv_img_pkt_dup(dlthis, secnn, image_offset, | |
987 | ipacket, rp, new_tramp_sym); | |
988 | if (ret_val != 1) { | |
989 | dload_error(dlthis, "Failed to create dup of " | |
990 | "original img pkt\n"); | |
991 | } | |
992 | } | |
993 | } | |
994 | ||
995 | return ret_val; | |
996 | } | |
997 | ||
998 | /* | |
999 | * Function: dload_tramp_pkt_update | |
1000 | * Description: Update the duplicate copy of this image packet, which the | |
0142919c | 1001 | * trampoline layer is already tracking. This call is critical |
26f8db7d ORL |
1002 | * to make if trampolines were generated anywhere within the |
1003 | * packet and first pass relo continued on the remainder. The | |
1004 | * trampoline layer needs the updates image data so when 2nd | |
1005 | * pass relo is done during finalize the image packet can be | |
1006 | * written to the target since all relo is done. | |
1007 | */ | |
1008 | int dload_tramp_pkt_udpate(struct dload_state *dlthis, s16 secnn, | |
1009 | u32 image_offset, struct image_packet_t *ipacket) | |
1010 | { | |
1011 | struct tramp_img_dup_pkt *dup_pkt = NULL; | |
1012 | s32 i; | |
1013 | int ret_val = 0; | |
1014 | ||
1015 | /* Find the image packet in question, the caller needs us to update it | |
1016 | since a trampoline was previously generated. */ | |
1017 | dup_pkt = priv_dup_find(dlthis, secnn, image_offset); | |
1018 | if (dup_pkt != NULL) { | |
1019 | for (i = 0; i < dup_pkt->img_pkt.packet_size; i++) | |
1020 | *(dup_pkt->img_pkt.img_data + i) = | |
1021 | *(ipacket->img_data + i); | |
1022 | ||
1023 | ret_val = 1; | |
1024 | } else { | |
1025 | dload_error(dlthis, | |
1026 | "Unable to find existing DUP pkt for %x, offset %x", | |
1027 | secnn, image_offset); | |
1028 | ||
1029 | } | |
1030 | ||
1031 | return ret_val; | |
1032 | } | |
1033 | ||
1034 | /* | |
1035 | * Function: dload_tramp_finalize | |
1036 | * Description: If any trampolines were created, finalize everything on the | |
1037 | * target by allocating the trampoline section on the target, | |
1038 | * finalizing the trampoline symbols, finalizing the trampoline | |
1039 | * packets (write the new section to target memory) and finalize | |
1040 | * the duplicate packets by doing 2nd pass relo over them. | |
1041 | */ | |
1042 | int dload_tramp_finalize(struct dload_state *dlthis) | |
1043 | { | |
1044 | int ret_val = 1; | |
1045 | ||
1046 | if (dlthis->tramp.tramp_sect_next_addr != 0) { | |
1047 | /* Finalize strings into a flat table. This is needed so it | |
1048 | * can be added to the debug string table later. */ | |
1049 | ret_val = priv_string_tbl_finalize(dlthis); | |
1050 | ||
1051 | /* Do target allocation for section BEFORE finalizing | |
1052 | * symbols. */ | |
1053 | if (ret_val != 0) | |
1054 | ret_val = priv_tramp_sect_tgt_alloc(dlthis); | |
1055 | ||
1056 | /* Finalize symbols with their correct target information and | |
1057 | * flatten */ | |
1058 | if (ret_val != 0) | |
1059 | ret_val = priv_tramp_sym_finalize(dlthis); | |
1060 | ||
1061 | /* Finalize all trampoline packets. This performs the | |
1062 | * relocation on the packets as well as writing them to target | |
1063 | * memory. */ | |
1064 | if (ret_val != 0) | |
1065 | ret_val = priv_tramp_pkt_finalize(dlthis); | |
1066 | ||
1067 | /* Perform a 2nd pass relocation on the dup list. */ | |
1068 | if (ret_val != 0) | |
1069 | ret_val = priv_dup_pkt_finalize(dlthis); | |
1070 | } | |
1071 | ||
1072 | return ret_val; | |
1073 | } | |
1074 | ||
1075 | /* | |
1076 | * Function: dload_tramp_cleanup | |
1077 | * Description: Release all temporary resources used in the trampoline layer. | |
1078 | * Note that the target memory which may have been allocated and | |
1079 | * written to store the trampolines is NOT RELEASED HERE since it | |
1080 | * is potentially still in use. It is automatically released | |
1081 | * when the module is unloaded. | |
1082 | */ | |
1083 | void dload_tramp_cleanup(struct dload_state *dlthis) | |
1084 | { | |
1085 | struct tramp_info *tramp = &dlthis->tramp; | |
1086 | struct tramp_sym *cur_sym; | |
1087 | struct tramp_string *cur_string; | |
1088 | struct tramp_img_pkt *cur_tramp_pkt; | |
1089 | struct tramp_img_dup_pkt *cur_dup_pkt; | |
1090 | struct tramp_img_dup_relo *cur_dup_relo; | |
1091 | ||
1092 | /* If there were no tramps generated, just return */ | |
1093 | if (tramp->tramp_sect_next_addr == 0) | |
1094 | return; | |
1095 | ||
1096 | /* Destroy all tramp information */ | |
1097 | for (cur_sym = tramp->symbol_head; | |
1098 | cur_sym != NULL; cur_sym = tramp->symbol_head) { | |
1099 | tramp->symbol_head = cur_sym->next; | |
1100 | if (tramp->symbol_tail == cur_sym) | |
1101 | tramp->symbol_tail = NULL; | |
1102 | ||
1103 | dlthis->mysym->dload_deallocate(dlthis->mysym, cur_sym); | |
1104 | } | |
1105 | ||
1106 | if (tramp->final_sym_table != NULL) | |
1107 | dlthis->mysym->dload_deallocate(dlthis->mysym, | |
1108 | tramp->final_sym_table); | |
1109 | ||
1110 | for (cur_string = tramp->string_head; | |
1111 | cur_string != NULL; cur_string = tramp->string_head) { | |
1112 | tramp->string_head = cur_string->next; | |
1113 | if (tramp->string_tail == cur_string) | |
1114 | tramp->string_tail = NULL; | |
1115 | ||
1116 | dlthis->mysym->dload_deallocate(dlthis->mysym, cur_string); | |
1117 | } | |
1118 | ||
1119 | if (tramp->final_string_table != NULL) | |
1120 | dlthis->mysym->dload_deallocate(dlthis->mysym, | |
1121 | tramp->final_string_table); | |
1122 | ||
1123 | for (cur_tramp_pkt = tramp->tramp_pkts; | |
1124 | cur_tramp_pkt != NULL; cur_tramp_pkt = tramp->tramp_pkts) { | |
1125 | tramp->tramp_pkts = cur_tramp_pkt->next; | |
1126 | dlthis->mysym->dload_deallocate(dlthis->mysym, cur_tramp_pkt); | |
1127 | } | |
1128 | ||
1129 | for (cur_dup_pkt = tramp->dup_pkts; | |
1130 | cur_dup_pkt != NULL; cur_dup_pkt = tramp->dup_pkts) { | |
1131 | tramp->dup_pkts = cur_dup_pkt->next; | |
1132 | ||
1133 | for (cur_dup_relo = cur_dup_pkt->relo_chain; | |
1134 | cur_dup_relo != NULL; | |
1135 | cur_dup_relo = cur_dup_pkt->relo_chain) { | |
1136 | cur_dup_pkt->relo_chain = cur_dup_relo->next; | |
1137 | dlthis->mysym->dload_deallocate(dlthis->mysym, | |
1138 | cur_dup_relo); | |
1139 | } | |
1140 | ||
1141 | dlthis->mysym->dload_deallocate(dlthis->mysym, cur_dup_pkt); | |
1142 | } | |
1143 | } |