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6d33b6be LZ |
1 | /****************************************************************************** |
2 | * | |
3 | * Module Name: uttrack - Memory allocation tracking routines (debug only) | |
4 | * | |
5 | *****************************************************************************/ | |
6 | ||
7 | /* | |
25f044e6 | 8 | * Copyright (C) 2000 - 2013, Intel Corp. |
6d33b6be LZ |
9 | * All rights reserved. |
10 | * | |
11 | * Redistribution and use in source and binary forms, with or without | |
12 | * modification, are permitted provided that the following conditions | |
13 | * are met: | |
14 | * 1. Redistributions of source code must retain the above copyright | |
15 | * notice, this list of conditions, and the following disclaimer, | |
16 | * without modification. | |
17 | * 2. Redistributions in binary form must reproduce at minimum a disclaimer | |
18 | * substantially similar to the "NO WARRANTY" disclaimer below | |
19 | * ("Disclaimer") and any redistribution must be conditioned upon | |
20 | * including a substantially similar Disclaimer requirement for further | |
21 | * binary redistribution. | |
22 | * 3. Neither the names of the above-listed copyright holders nor the names | |
23 | * of any contributors may be used to endorse or promote products derived | |
24 | * from this software without specific prior written permission. | |
25 | * | |
26 | * Alternatively, this software may be distributed under the terms of the | |
27 | * GNU General Public License ("GPL") version 2 as published by the Free | |
28 | * Software Foundation. | |
29 | * | |
30 | * NO WARRANTY | |
31 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
32 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
33 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR | |
34 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
35 | * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
36 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
37 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
38 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | |
39 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING | |
40 | * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | |
41 | * POSSIBILITY OF SUCH DAMAGES. | |
42 | */ | |
43 | ||
44 | /* | |
45 | * These procedures are used for tracking memory leaks in the subsystem, and | |
46 | * they get compiled out when the ACPI_DBG_TRACK_ALLOCATIONS is not set. | |
47 | * | |
73a3090a | 48 | * Each memory allocation is tracked via a doubly linked list. Each |
6d33b6be | 49 | * element contains the caller's component, module name, function name, and |
73a3090a | 50 | * line number. acpi_ut_allocate and acpi_ut_allocate_zeroed call |
6d33b6be LZ |
51 | * acpi_ut_track_allocation to add an element to the list; deletion |
52 | * occurs in the body of acpi_ut_free. | |
53 | */ | |
54 | ||
55 | #include <acpi/acpi.h> | |
56 | #include "accommon.h" | |
57 | ||
58 | #ifdef ACPI_DBG_TRACK_ALLOCATIONS | |
59 | ||
60 | #define _COMPONENT ACPI_UTILITIES | |
61 | ACPI_MODULE_NAME("uttrack") | |
62 | ||
63 | /* Local prototypes */ | |
d8da9151 BM |
64 | static struct acpi_debug_mem_block *acpi_ut_find_allocation(struct |
65 | acpi_debug_mem_block | |
66 | *allocation); | |
6d33b6be LZ |
67 | |
68 | static acpi_status | |
69 | acpi_ut_track_allocation(struct acpi_debug_mem_block *address, | |
70 | acpi_size size, | |
71 | u8 alloc_type, | |
72 | u32 component, const char *module, u32 line); | |
73 | ||
74 | static acpi_status | |
75 | acpi_ut_remove_allocation(struct acpi_debug_mem_block *address, | |
76 | u32 component, const char *module, u32 line); | |
77 | ||
78 | /******************************************************************************* | |
79 | * | |
80 | * FUNCTION: acpi_ut_create_list | |
81 | * | |
82 | * PARAMETERS: cache_name - Ascii name for the cache | |
83 | * object_size - Size of each cached object | |
84 | * return_cache - Where the new cache object is returned | |
85 | * | |
86 | * RETURN: Status | |
87 | * | |
88 | * DESCRIPTION: Create a local memory list for tracking purposed | |
89 | * | |
90 | ******************************************************************************/ | |
91 | ||
92 | acpi_status | |
93 | acpi_ut_create_list(char *list_name, | |
94 | u16 object_size, struct acpi_memory_list **return_cache) | |
95 | { | |
96 | struct acpi_memory_list *cache; | |
97 | ||
98 | cache = acpi_os_allocate(sizeof(struct acpi_memory_list)); | |
99 | if (!cache) { | |
100 | return (AE_NO_MEMORY); | |
101 | } | |
102 | ||
103 | ACPI_MEMSET(cache, 0, sizeof(struct acpi_memory_list)); | |
104 | ||
105 | cache->list_name = list_name; | |
106 | cache->object_size = object_size; | |
107 | ||
108 | *return_cache = cache; | |
109 | return (AE_OK); | |
110 | } | |
111 | ||
112 | /******************************************************************************* | |
113 | * | |
114 | * FUNCTION: acpi_ut_allocate_and_track | |
115 | * | |
116 | * PARAMETERS: size - Size of the allocation | |
117 | * component - Component type of caller | |
118 | * module - Source file name of caller | |
119 | * line - Line number of caller | |
120 | * | |
121 | * RETURN: Address of the allocated memory on success, NULL on failure. | |
122 | * | |
123 | * DESCRIPTION: The subsystem's equivalent of malloc. | |
124 | * | |
125 | ******************************************************************************/ | |
126 | ||
127 | void *acpi_ut_allocate_and_track(acpi_size size, | |
128 | u32 component, const char *module, u32 line) | |
129 | { | |
130 | struct acpi_debug_mem_block *allocation; | |
131 | acpi_status status; | |
132 | ||
b3c86c30 LZ |
133 | /* Check for an inadvertent size of zero bytes */ |
134 | ||
135 | if (!size) { | |
136 | ACPI_WARNING((module, line, | |
137 | "Attempt to allocate zero bytes, allocating 1 byte")); | |
138 | size = 1; | |
139 | } | |
140 | ||
6d33b6be | 141 | allocation = |
b3c86c30 | 142 | acpi_os_allocate(size + sizeof(struct acpi_debug_mem_header)); |
6d33b6be | 143 | if (!allocation) { |
b3c86c30 LZ |
144 | |
145 | /* Report allocation error */ | |
146 | ||
147 | ACPI_WARNING((module, line, | |
148 | "Could not allocate size %u", (u32)size)); | |
149 | ||
6d33b6be LZ |
150 | return (NULL); |
151 | } | |
152 | ||
153 | status = acpi_ut_track_allocation(allocation, size, | |
154 | ACPI_MEM_MALLOC, component, module, | |
155 | line); | |
156 | if (ACPI_FAILURE(status)) { | |
157 | acpi_os_free(allocation); | |
158 | return (NULL); | |
159 | } | |
160 | ||
161 | acpi_gbl_global_list->total_allocated++; | |
162 | acpi_gbl_global_list->total_size += (u32)size; | |
163 | acpi_gbl_global_list->current_total_size += (u32)size; | |
164 | if (acpi_gbl_global_list->current_total_size > | |
165 | acpi_gbl_global_list->max_occupied) { | |
166 | acpi_gbl_global_list->max_occupied = | |
167 | acpi_gbl_global_list->current_total_size; | |
168 | } | |
169 | ||
170 | return ((void *)&allocation->user_space); | |
171 | } | |
172 | ||
173 | /******************************************************************************* | |
174 | * | |
175 | * FUNCTION: acpi_ut_allocate_zeroed_and_track | |
176 | * | |
177 | * PARAMETERS: size - Size of the allocation | |
178 | * component - Component type of caller | |
179 | * module - Source file name of caller | |
180 | * line - Line number of caller | |
181 | * | |
182 | * RETURN: Address of the allocated memory on success, NULL on failure. | |
183 | * | |
184 | * DESCRIPTION: Subsystem equivalent of calloc. | |
185 | * | |
186 | ******************************************************************************/ | |
187 | ||
188 | void *acpi_ut_allocate_zeroed_and_track(acpi_size size, | |
189 | u32 component, | |
190 | const char *module, u32 line) | |
191 | { | |
192 | struct acpi_debug_mem_block *allocation; | |
193 | acpi_status status; | |
194 | ||
b3c86c30 LZ |
195 | /* Check for an inadvertent size of zero bytes */ |
196 | ||
197 | if (!size) { | |
198 | ACPI_WARNING((module, line, | |
199 | "Attempt to allocate zero bytes, allocating 1 byte")); | |
200 | size = 1; | |
201 | } | |
202 | ||
6d33b6be | 203 | allocation = |
b3c86c30 LZ |
204 | acpi_os_allocate_zeroed(size + |
205 | sizeof(struct acpi_debug_mem_header)); | |
6d33b6be LZ |
206 | if (!allocation) { |
207 | ||
208 | /* Report allocation error */ | |
209 | ||
210 | ACPI_ERROR((module, line, | |
211 | "Could not allocate size %u", (u32)size)); | |
212 | return (NULL); | |
213 | } | |
214 | ||
215 | status = acpi_ut_track_allocation(allocation, size, | |
216 | ACPI_MEM_CALLOC, component, module, | |
217 | line); | |
218 | if (ACPI_FAILURE(status)) { | |
219 | acpi_os_free(allocation); | |
220 | return (NULL); | |
221 | } | |
222 | ||
223 | acpi_gbl_global_list->total_allocated++; | |
224 | acpi_gbl_global_list->total_size += (u32)size; | |
225 | acpi_gbl_global_list->current_total_size += (u32)size; | |
226 | if (acpi_gbl_global_list->current_total_size > | |
227 | acpi_gbl_global_list->max_occupied) { | |
228 | acpi_gbl_global_list->max_occupied = | |
229 | acpi_gbl_global_list->current_total_size; | |
230 | } | |
231 | ||
232 | return ((void *)&allocation->user_space); | |
233 | } | |
234 | ||
235 | /******************************************************************************* | |
236 | * | |
237 | * FUNCTION: acpi_ut_free_and_track | |
238 | * | |
239 | * PARAMETERS: allocation - Address of the memory to deallocate | |
240 | * component - Component type of caller | |
241 | * module - Source file name of caller | |
242 | * line - Line number of caller | |
243 | * | |
244 | * RETURN: None | |
245 | * | |
246 | * DESCRIPTION: Frees the memory at Allocation | |
247 | * | |
248 | ******************************************************************************/ | |
249 | ||
250 | void | |
251 | acpi_ut_free_and_track(void *allocation, | |
252 | u32 component, const char *module, u32 line) | |
253 | { | |
254 | struct acpi_debug_mem_block *debug_block; | |
255 | acpi_status status; | |
256 | ||
257 | ACPI_FUNCTION_TRACE_PTR(ut_free, allocation); | |
258 | ||
259 | if (NULL == allocation) { | |
260 | ACPI_ERROR((module, line, "Attempt to delete a NULL address")); | |
261 | ||
262 | return_VOID; | |
263 | } | |
264 | ||
265 | debug_block = ACPI_CAST_PTR(struct acpi_debug_mem_block, | |
266 | (((char *)allocation) - | |
267 | sizeof(struct acpi_debug_mem_header))); | |
268 | ||
269 | acpi_gbl_global_list->total_freed++; | |
270 | acpi_gbl_global_list->current_total_size -= debug_block->size; | |
271 | ||
272 | status = acpi_ut_remove_allocation(debug_block, | |
273 | component, module, line); | |
274 | if (ACPI_FAILURE(status)) { | |
275 | ACPI_EXCEPTION((AE_INFO, status, "Could not free memory")); | |
276 | } | |
277 | ||
278 | acpi_os_free(debug_block); | |
279 | ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS, "%p freed\n", allocation)); | |
280 | return_VOID; | |
281 | } | |
282 | ||
283 | /******************************************************************************* | |
284 | * | |
285 | * FUNCTION: acpi_ut_find_allocation | |
286 | * | |
287 | * PARAMETERS: allocation - Address of allocated memory | |
288 | * | |
d8da9151 BM |
289 | * RETURN: Three cases: |
290 | * 1) List is empty, NULL is returned. | |
291 | * 2) Element was found. Returns Allocation parameter. | |
292 | * 3) Element was not found. Returns position where it should be | |
293 | * inserted into the list. | |
6d33b6be LZ |
294 | * |
295 | * DESCRIPTION: Searches for an element in the global allocation tracking list. | |
d8da9151 BM |
296 | * If the element is not found, returns the location within the |
297 | * list where the element should be inserted. | |
298 | * | |
299 | * Note: The list is ordered by larger-to-smaller addresses. | |
300 | * | |
301 | * This global list is used to detect memory leaks in ACPICA as | |
302 | * well as other issues such as an attempt to release the same | |
303 | * internal object more than once. Although expensive as far | |
304 | * as cpu time, this list is much more helpful for finding these | |
305 | * types of issues than using memory leak detectors outside of | |
306 | * the ACPICA code. | |
6d33b6be LZ |
307 | * |
308 | ******************************************************************************/ | |
309 | ||
d8da9151 BM |
310 | static struct acpi_debug_mem_block *acpi_ut_find_allocation(struct |
311 | acpi_debug_mem_block | |
312 | *allocation) | |
6d33b6be LZ |
313 | { |
314 | struct acpi_debug_mem_block *element; | |
315 | ||
6d33b6be | 316 | element = acpi_gbl_global_list->list_head; |
d8da9151 BM |
317 | if (!element) { |
318 | return (NULL); | |
319 | } | |
320 | ||
321 | /* | |
322 | * Search for the address. | |
323 | * | |
324 | * Note: List is ordered by larger-to-smaller addresses, on the | |
325 | * assumption that a new allocation usually has a larger address | |
326 | * than previous allocations. | |
327 | */ | |
328 | while (element > allocation) { | |
6d33b6be | 329 | |
d8da9151 | 330 | /* Check for end-of-list */ |
6d33b6be | 331 | |
d8da9151 | 332 | if (!element->next) { |
6d33b6be LZ |
333 | return (element); |
334 | } | |
335 | ||
336 | element = element->next; | |
337 | } | |
338 | ||
d8da9151 BM |
339 | if (element == allocation) { |
340 | return (element); | |
341 | } | |
342 | ||
343 | return (element->previous); | |
6d33b6be LZ |
344 | } |
345 | ||
346 | /******************************************************************************* | |
347 | * | |
348 | * FUNCTION: acpi_ut_track_allocation | |
349 | * | |
350 | * PARAMETERS: allocation - Address of allocated memory | |
351 | * size - Size of the allocation | |
352 | * alloc_type - MEM_MALLOC or MEM_CALLOC | |
353 | * component - Component type of caller | |
354 | * module - Source file name of caller | |
355 | * line - Line number of caller | |
356 | * | |
d8da9151 | 357 | * RETURN: Status |
6d33b6be LZ |
358 | * |
359 | * DESCRIPTION: Inserts an element into the global allocation tracking list. | |
360 | * | |
361 | ******************************************************************************/ | |
362 | ||
363 | static acpi_status | |
364 | acpi_ut_track_allocation(struct acpi_debug_mem_block *allocation, | |
365 | acpi_size size, | |
366 | u8 alloc_type, | |
367 | u32 component, const char *module, u32 line) | |
368 | { | |
369 | struct acpi_memory_list *mem_list; | |
370 | struct acpi_debug_mem_block *element; | |
371 | acpi_status status = AE_OK; | |
372 | ||
373 | ACPI_FUNCTION_TRACE_PTR(ut_track_allocation, allocation); | |
374 | ||
375 | if (acpi_gbl_disable_mem_tracking) { | |
376 | return_ACPI_STATUS(AE_OK); | |
377 | } | |
378 | ||
379 | mem_list = acpi_gbl_global_list; | |
380 | status = acpi_ut_acquire_mutex(ACPI_MTX_MEMORY); | |
381 | if (ACPI_FAILURE(status)) { | |
382 | return_ACPI_STATUS(status); | |
383 | } | |
384 | ||
385 | /* | |
d8da9151 BM |
386 | * Search the global list for this address to make sure it is not |
387 | * already present. This will catch several kinds of problems. | |
6d33b6be LZ |
388 | */ |
389 | element = acpi_ut_find_allocation(allocation); | |
d8da9151 | 390 | if (element == allocation) { |
6d33b6be | 391 | ACPI_ERROR((AE_INFO, |
d8da9151 | 392 | "UtTrackAllocation: Allocation (%p) already present in global list!", |
6d33b6be | 393 | allocation)); |
6d33b6be LZ |
394 | goto unlock_and_exit; |
395 | } | |
396 | ||
d8da9151 | 397 | /* Fill in the instance data */ |
6d33b6be LZ |
398 | |
399 | allocation->size = (u32)size; | |
400 | allocation->alloc_type = alloc_type; | |
401 | allocation->component = component; | |
402 | allocation->line = line; | |
403 | ||
404 | ACPI_STRNCPY(allocation->module, module, ACPI_MAX_MODULE_NAME); | |
405 | allocation->module[ACPI_MAX_MODULE_NAME - 1] = 0; | |
406 | ||
d8da9151 | 407 | if (!element) { |
6d33b6be | 408 | |
d8da9151 BM |
409 | /* Insert at list head */ |
410 | ||
411 | if (mem_list->list_head) { | |
412 | ((struct acpi_debug_mem_block *)(mem_list->list_head))-> | |
413 | previous = allocation; | |
414 | } | |
415 | ||
416 | allocation->next = mem_list->list_head; | |
417 | allocation->previous = NULL; | |
6d33b6be | 418 | |
d8da9151 BM |
419 | mem_list->list_head = allocation; |
420 | } else { | |
421 | /* Insert after element */ | |
6d33b6be | 422 | |
d8da9151 BM |
423 | allocation->next = element->next; |
424 | allocation->previous = element; | |
425 | ||
426 | if (element->next) { | |
427 | (element->next)->previous = allocation; | |
428 | } | |
429 | ||
430 | element->next = allocation; | |
431 | } | |
6d33b6be | 432 | |
10622bf8 | 433 | unlock_and_exit: |
6d33b6be LZ |
434 | status = acpi_ut_release_mutex(ACPI_MTX_MEMORY); |
435 | return_ACPI_STATUS(status); | |
436 | } | |
437 | ||
438 | /******************************************************************************* | |
439 | * | |
440 | * FUNCTION: acpi_ut_remove_allocation | |
441 | * | |
442 | * PARAMETERS: allocation - Address of allocated memory | |
443 | * component - Component type of caller | |
444 | * module - Source file name of caller | |
445 | * line - Line number of caller | |
446 | * | |
d8da9151 | 447 | * RETURN: Status |
6d33b6be LZ |
448 | * |
449 | * DESCRIPTION: Deletes an element from the global allocation tracking list. | |
450 | * | |
451 | ******************************************************************************/ | |
452 | ||
453 | static acpi_status | |
454 | acpi_ut_remove_allocation(struct acpi_debug_mem_block *allocation, | |
455 | u32 component, const char *module, u32 line) | |
456 | { | |
457 | struct acpi_memory_list *mem_list; | |
458 | acpi_status status; | |
459 | ||
0e770b32 | 460 | ACPI_FUNCTION_NAME(ut_remove_allocation); |
6d33b6be LZ |
461 | |
462 | if (acpi_gbl_disable_mem_tracking) { | |
0e770b32 | 463 | return (AE_OK); |
6d33b6be LZ |
464 | } |
465 | ||
466 | mem_list = acpi_gbl_global_list; | |
467 | if (NULL == mem_list->list_head) { | |
468 | ||
469 | /* No allocations! */ | |
470 | ||
471 | ACPI_ERROR((module, line, | |
472 | "Empty allocation list, nothing to free!")); | |
473 | ||
0e770b32 | 474 | return (AE_OK); |
6d33b6be LZ |
475 | } |
476 | ||
477 | status = acpi_ut_acquire_mutex(ACPI_MTX_MEMORY); | |
478 | if (ACPI_FAILURE(status)) { | |
0e770b32 | 479 | return (status); |
6d33b6be LZ |
480 | } |
481 | ||
482 | /* Unlink */ | |
483 | ||
484 | if (allocation->previous) { | |
485 | (allocation->previous)->next = allocation->next; | |
486 | } else { | |
487 | mem_list->list_head = allocation->next; | |
488 | } | |
489 | ||
490 | if (allocation->next) { | |
491 | (allocation->next)->previous = allocation->previous; | |
492 | } | |
493 | ||
0e770b32 BM |
494 | ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS, "Freeing %p, size 0%X\n", |
495 | &allocation->user_space, allocation->size)); | |
496 | ||
6d33b6be LZ |
497 | /* Mark the segment as deleted */ |
498 | ||
499 | ACPI_MEMSET(&allocation->user_space, 0xEA, allocation->size); | |
500 | ||
6d33b6be | 501 | status = acpi_ut_release_mutex(ACPI_MTX_MEMORY); |
0e770b32 | 502 | return (status); |
6d33b6be LZ |
503 | } |
504 | ||
505 | /******************************************************************************* | |
506 | * | |
507 | * FUNCTION: acpi_ut_dump_allocation_info | |
508 | * | |
d8da9151 | 509 | * PARAMETERS: None |
6d33b6be LZ |
510 | * |
511 | * RETURN: None | |
512 | * | |
513 | * DESCRIPTION: Print some info about the outstanding allocations. | |
514 | * | |
515 | ******************************************************************************/ | |
516 | ||
517 | void acpi_ut_dump_allocation_info(void) | |
518 | { | |
519 | /* | |
520 | struct acpi_memory_list *mem_list; | |
521 | */ | |
522 | ||
523 | ACPI_FUNCTION_TRACE(ut_dump_allocation_info); | |
524 | ||
525 | /* | |
526 | ACPI_DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES, | |
527 | ("%30s: %4d (%3d Kb)\n", "Current allocations", | |
528 | mem_list->current_count, | |
529 | ROUND_UP_TO_1K (mem_list->current_size))); | |
530 | ||
531 | ACPI_DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES, | |
532 | ("%30s: %4d (%3d Kb)\n", "Max concurrent allocations", | |
533 | mem_list->max_concurrent_count, | |
534 | ROUND_UP_TO_1K (mem_list->max_concurrent_size))); | |
535 | ||
536 | ACPI_DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES, | |
537 | ("%30s: %4d (%3d Kb)\n", "Total (all) internal objects", | |
538 | running_object_count, | |
539 | ROUND_UP_TO_1K (running_object_size))); | |
540 | ||
541 | ACPI_DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES, | |
542 | ("%30s: %4d (%3d Kb)\n", "Total (all) allocations", | |
543 | running_alloc_count, | |
544 | ROUND_UP_TO_1K (running_alloc_size))); | |
545 | ||
546 | ACPI_DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES, | |
547 | ("%30s: %4d (%3d Kb)\n", "Current Nodes", | |
548 | acpi_gbl_current_node_count, | |
549 | ROUND_UP_TO_1K (acpi_gbl_current_node_size))); | |
550 | ||
551 | ACPI_DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES, | |
552 | ("%30s: %4d (%3d Kb)\n", "Max Nodes", | |
553 | acpi_gbl_max_concurrent_node_count, | |
554 | ROUND_UP_TO_1K ((acpi_gbl_max_concurrent_node_count * | |
555 | sizeof (struct acpi_namespace_node))))); | |
556 | */ | |
557 | return_VOID; | |
558 | } | |
559 | ||
560 | /******************************************************************************* | |
561 | * | |
562 | * FUNCTION: acpi_ut_dump_allocations | |
563 | * | |
564 | * PARAMETERS: component - Component(s) to dump info for. | |
73a3090a | 565 | * module - Module to dump info for. NULL means all. |
6d33b6be LZ |
566 | * |
567 | * RETURN: None | |
568 | * | |
569 | * DESCRIPTION: Print a list of all outstanding allocations. | |
570 | * | |
571 | ******************************************************************************/ | |
572 | ||
573 | void acpi_ut_dump_allocations(u32 component, const char *module) | |
574 | { | |
575 | struct acpi_debug_mem_block *element; | |
576 | union acpi_descriptor *descriptor; | |
577 | u32 num_outstanding = 0; | |
578 | u8 descriptor_type; | |
579 | ||
580 | ACPI_FUNCTION_TRACE(ut_dump_allocations); | |
581 | ||
582 | if (acpi_gbl_disable_mem_tracking) { | |
68aafc35 | 583 | return_VOID; |
6d33b6be LZ |
584 | } |
585 | ||
586 | /* | |
587 | * Walk the allocation list. | |
588 | */ | |
589 | if (ACPI_FAILURE(acpi_ut_acquire_mutex(ACPI_MTX_MEMORY))) { | |
68aafc35 | 590 | return_VOID; |
6d33b6be LZ |
591 | } |
592 | ||
593 | element = acpi_gbl_global_list->list_head; | |
594 | while (element) { | |
595 | if ((element->component & component) && | |
596 | ((module == NULL) | |
597 | || (0 == ACPI_STRCMP(module, element->module)))) { | |
598 | descriptor = | |
599 | ACPI_CAST_PTR(union acpi_descriptor, | |
600 | &element->user_space); | |
601 | ||
602 | if (element->size < | |
603 | sizeof(struct acpi_common_descriptor)) { | |
604 | acpi_os_printf("%p Length 0x%04X %9.9s-%u " | |
605 | "[Not a Descriptor - too small]\n", | |
606 | descriptor, element->size, | |
607 | element->module, element->line); | |
608 | } else { | |
609 | /* Ignore allocated objects that are in a cache */ | |
610 | ||
611 | if (ACPI_GET_DESCRIPTOR_TYPE(descriptor) != | |
612 | ACPI_DESC_TYPE_CACHED) { | |
613 | acpi_os_printf | |
614 | ("%p Length 0x%04X %9.9s-%u [%s] ", | |
615 | descriptor, element->size, | |
616 | element->module, element->line, | |
617 | acpi_ut_get_descriptor_name | |
618 | (descriptor)); | |
619 | ||
620 | /* Validate the descriptor type using Type field and length */ | |
621 | ||
622 | descriptor_type = 0; /* Not a valid descriptor type */ | |
623 | ||
624 | switch (ACPI_GET_DESCRIPTOR_TYPE | |
625 | (descriptor)) { | |
626 | case ACPI_DESC_TYPE_OPERAND: | |
1d1ea1b7 | 627 | |
6d33b6be LZ |
628 | if (element->size == |
629 | sizeof(union | |
630 | acpi_operand_object)) | |
631 | { | |
632 | descriptor_type = | |
633 | ACPI_DESC_TYPE_OPERAND; | |
634 | } | |
635 | break; | |
636 | ||
637 | case ACPI_DESC_TYPE_PARSER: | |
1d1ea1b7 | 638 | |
6d33b6be LZ |
639 | if (element->size == |
640 | sizeof(union | |
641 | acpi_parse_object)) { | |
642 | descriptor_type = | |
643 | ACPI_DESC_TYPE_PARSER; | |
644 | } | |
645 | break; | |
646 | ||
647 | case ACPI_DESC_TYPE_NAMED: | |
1d1ea1b7 | 648 | |
6d33b6be LZ |
649 | if (element->size == |
650 | sizeof(struct | |
651 | acpi_namespace_node)) | |
652 | { | |
653 | descriptor_type = | |
654 | ACPI_DESC_TYPE_NAMED; | |
655 | } | |
656 | break; | |
657 | ||
658 | default: | |
1d1ea1b7 | 659 | |
6d33b6be LZ |
660 | break; |
661 | } | |
662 | ||
663 | /* Display additional info for the major descriptor types */ | |
664 | ||
665 | switch (descriptor_type) { | |
666 | case ACPI_DESC_TYPE_OPERAND: | |
1d1ea1b7 | 667 | |
6d33b6be LZ |
668 | acpi_os_printf |
669 | ("%12.12s RefCount 0x%04X\n", | |
670 | acpi_ut_get_type_name | |
671 | (descriptor->object.common. | |
672 | type), | |
673 | descriptor->object.common. | |
674 | reference_count); | |
675 | break; | |
676 | ||
677 | case ACPI_DESC_TYPE_PARSER: | |
1d1ea1b7 | 678 | |
6d33b6be LZ |
679 | acpi_os_printf |
680 | ("AmlOpcode 0x%04hX\n", | |
681 | descriptor->op.asl. | |
682 | aml_opcode); | |
683 | break; | |
684 | ||
685 | case ACPI_DESC_TYPE_NAMED: | |
1d1ea1b7 | 686 | |
6d33b6be LZ |
687 | acpi_os_printf("%4.4s\n", |
688 | acpi_ut_get_node_name | |
689 | (&descriptor-> | |
690 | node)); | |
691 | break; | |
692 | ||
693 | default: | |
1d1ea1b7 | 694 | |
6d33b6be LZ |
695 | acpi_os_printf("\n"); |
696 | break; | |
697 | } | |
698 | } | |
699 | } | |
700 | ||
701 | num_outstanding++; | |
702 | } | |
703 | ||
704 | element = element->next; | |
705 | } | |
706 | ||
707 | (void)acpi_ut_release_mutex(ACPI_MTX_MEMORY); | |
708 | ||
709 | /* Print summary */ | |
710 | ||
711 | if (!num_outstanding) { | |
712 | ACPI_INFO((AE_INFO, "No outstanding allocations")); | |
713 | } else { | |
714 | ACPI_ERROR((AE_INFO, "%u(0x%X) Outstanding allocations", | |
715 | num_outstanding, num_outstanding)); | |
716 | } | |
717 | ||
718 | return_VOID; | |
719 | } | |
720 | ||
721 | #endif /* ACPI_DBG_TRACK_ALLOCATIONS */ |