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authorBob Moore <robert.moore@intel.com>2015-12-29 00:54:44 -0500
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2015-12-31 21:47:34 -0500
commit5df2e3ed04862d9e6465b3b2748ef747d31c4bbc (patch)
treec088cf8d3cb0728a079b9c200219ca92fabe6659
parent1fad87385e7e82f656fb661aef0f841e42991974 (diff)
ACPICA: Split interpreter tracing functions to a new file
ACPICA commit a3f85a7d26a52ee0d9103feb4fbec8d7b6ba4c11 Split out functions from exdebug.c to extrace.c Link: https://github.com/acpica/acpica/commit/a3f85a7d Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
-rw-r--r--drivers/acpi/acpica/Makefile3
-rw-r--r--drivers/acpi/acpica/exdebug.c325
-rw-r--r--drivers/acpi/acpica/extrace.c377
3 files changed, 379 insertions, 326 deletions
diff --git a/drivers/acpi/acpica/Makefile b/drivers/acpi/acpica/Makefile
index 885936f79542..e75f40164258 100644
--- a/drivers/acpi/acpica/Makefile
+++ b/drivers/acpi/acpica/Makefile
@@ -50,6 +50,7 @@ acpi-y += \
50 exdump.o \ 50 exdump.o \
51 exfield.o \ 51 exfield.o \
52 exfldio.o \ 52 exfldio.o \
53 exmisc.o \
53 exmutex.o \ 54 exmutex.o \
54 exnames.o \ 55 exnames.o \
55 exoparg1.o \ 56 exoparg1.o \
@@ -57,7 +58,6 @@ acpi-y += \
57 exoparg3.o \ 58 exoparg3.o \
58 exoparg6.o \ 59 exoparg6.o \
59 exprep.o \ 60 exprep.o \
60 exmisc.o \
61 exregion.o \ 61 exregion.o \
62 exresnte.o \ 62 exresnte.o \
63 exresolv.o \ 63 exresolv.o \
@@ -66,6 +66,7 @@ acpi-y += \
66 exstoren.o \ 66 exstoren.o \
67 exstorob.o \ 67 exstorob.o \
68 exsystem.o \ 68 exsystem.o \
69 extrace.o \
69 exutils.o 70 exutils.o
70 71
71acpi-y += \ 72acpi-y += \
diff --git a/drivers/acpi/acpica/exdebug.c b/drivers/acpi/acpica/exdebug.c
index 665a4b9556e2..815442bbd051 100644
--- a/drivers/acpi/acpica/exdebug.c
+++ b/drivers/acpi/acpica/exdebug.c
@@ -43,21 +43,11 @@
43 43
44#include <acpi/acpi.h> 44#include <acpi/acpi.h>
45#include "accommon.h" 45#include "accommon.h"
46#include "acnamesp.h"
47#include "acinterp.h" 46#include "acinterp.h"
48#include "acparser.h"
49 47
50#define _COMPONENT ACPI_EXECUTER 48#define _COMPONENT ACPI_EXECUTER
51ACPI_MODULE_NAME("exdebug") 49ACPI_MODULE_NAME("exdebug")
52 50
53static union acpi_operand_object *acpi_gbl_trace_method_object = NULL;
54
55/* Local prototypes */
56
57#ifdef ACPI_DEBUG_OUTPUT
58static const char *acpi_ex_get_trace_event_name(acpi_trace_event_type type);
59#endif
60
61#ifndef ACPI_NO_ERROR_MESSAGES 51#ifndef ACPI_NO_ERROR_MESSAGES
62/******************************************************************************* 52/*******************************************************************************
63 * 53 *
@@ -80,7 +70,6 @@ static const char *acpi_ex_get_trace_event_name(acpi_trace_event_type type);
80 * enabled if necessary. 70 * enabled if necessary.
81 * 71 *
82 ******************************************************************************/ 72 ******************************************************************************/
83
84void 73void
85acpi_ex_do_debug_object(union acpi_operand_object *source_desc, 74acpi_ex_do_debug_object(union acpi_operand_object *source_desc,
86 u32 level, u32 index) 75 u32 level, u32 index)
@@ -319,317 +308,3 @@ acpi_ex_do_debug_object(union acpi_operand_object *source_desc,
319 return_VOID; 308 return_VOID;
320} 309}
321#endif 310#endif
322
323/*******************************************************************************
324 *
325 * FUNCTION: acpi_ex_interpreter_trace_enabled
326 *
327 * PARAMETERS: name - Whether method name should be matched,
328 * this should be checked before starting
329 * the tracer
330 *
331 * RETURN: TRUE if interpreter trace is enabled.
332 *
333 * DESCRIPTION: Check whether interpreter trace is enabled
334 *
335 ******************************************************************************/
336
337static u8 acpi_ex_interpreter_trace_enabled(char *name)
338{
339
340 /* Check if tracing is enabled */
341
342 if (!(acpi_gbl_trace_flags & ACPI_TRACE_ENABLED)) {
343 return (FALSE);
344 }
345
346 /*
347 * Check if tracing is filtered:
348 *
349 * 1. If the tracer is started, acpi_gbl_trace_method_object should have
350 * been filled by the trace starter
351 * 2. If the tracer is not started, acpi_gbl_trace_method_name should be
352 * matched if it is specified
353 * 3. If the tracer is oneshot style, acpi_gbl_trace_method_name should
354 * not be cleared by the trace stopper during the first match
355 */
356 if (acpi_gbl_trace_method_object) {
357 return (TRUE);
358 }
359 if (name &&
360 (acpi_gbl_trace_method_name &&
361 strcmp(acpi_gbl_trace_method_name, name))) {
362 return (FALSE);
363 }
364 if ((acpi_gbl_trace_flags & ACPI_TRACE_ONESHOT) &&
365 !acpi_gbl_trace_method_name) {
366 return (FALSE);
367 }
368
369 return (TRUE);
370}
371
372/*******************************************************************************
373 *
374 * FUNCTION: acpi_ex_get_trace_event_name
375 *
376 * PARAMETERS: type - Trace event type
377 *
378 * RETURN: Trace event name.
379 *
380 * DESCRIPTION: Used to obtain the full trace event name.
381 *
382 ******************************************************************************/
383
384#ifdef ACPI_DEBUG_OUTPUT
385
386static const char *acpi_ex_get_trace_event_name(acpi_trace_event_type type)
387{
388 switch (type) {
389 case ACPI_TRACE_AML_METHOD:
390
391 return "Method";
392
393 case ACPI_TRACE_AML_OPCODE:
394
395 return "Opcode";
396
397 case ACPI_TRACE_AML_REGION:
398
399 return "Region";
400
401 default:
402
403 return "";
404 }
405}
406
407#endif
408
409/*******************************************************************************
410 *
411 * FUNCTION: acpi_ex_trace_point
412 *
413 * PARAMETERS: type - Trace event type
414 * begin - TRUE if before execution
415 * aml - Executed AML address
416 * pathname - Object path
417 *
418 * RETURN: None
419 *
420 * DESCRIPTION: Internal interpreter execution trace.
421 *
422 ******************************************************************************/
423
424void
425acpi_ex_trace_point(acpi_trace_event_type type,
426 u8 begin, u8 *aml, char *pathname)
427{
428
429 ACPI_FUNCTION_NAME(ex_trace_point);
430
431 if (pathname) {
432 ACPI_DEBUG_PRINT((ACPI_DB_TRACE_POINT,
433 "%s %s [0x%p:%s] execution.\n",
434 acpi_ex_get_trace_event_name(type),
435 begin ? "Begin" : "End", aml, pathname));
436 } else {
437 ACPI_DEBUG_PRINT((ACPI_DB_TRACE_POINT,
438 "%s %s [0x%p] execution.\n",
439 acpi_ex_get_trace_event_name(type),
440 begin ? "Begin" : "End", aml));
441 }
442}
443
444/*******************************************************************************
445 *
446 * FUNCTION: acpi_ex_start_trace_method
447 *
448 * PARAMETERS: method_node - Node of the method
449 * obj_desc - The method object
450 * walk_state - current state, NULL if not yet executing
451 * a method.
452 *
453 * RETURN: None
454 *
455 * DESCRIPTION: Start control method execution trace
456 *
457 ******************************************************************************/
458
459void
460acpi_ex_start_trace_method(struct acpi_namespace_node *method_node,
461 union acpi_operand_object *obj_desc,
462 struct acpi_walk_state *walk_state)
463{
464 acpi_status status;
465 char *pathname = NULL;
466 u8 enabled = FALSE;
467
468 ACPI_FUNCTION_NAME(ex_start_trace_method);
469
470 if (method_node) {
471 pathname = acpi_ns_get_normalized_pathname(method_node, TRUE);
472 }
473
474 status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
475 if (ACPI_FAILURE(status)) {
476 goto exit;
477 }
478
479 enabled = acpi_ex_interpreter_trace_enabled(pathname);
480 if (enabled && !acpi_gbl_trace_method_object) {
481 acpi_gbl_trace_method_object = obj_desc;
482 acpi_gbl_original_dbg_level = acpi_dbg_level;
483 acpi_gbl_original_dbg_layer = acpi_dbg_layer;
484 acpi_dbg_level = ACPI_TRACE_LEVEL_ALL;
485 acpi_dbg_layer = ACPI_TRACE_LAYER_ALL;
486
487 if (acpi_gbl_trace_dbg_level) {
488 acpi_dbg_level = acpi_gbl_trace_dbg_level;
489 }
490 if (acpi_gbl_trace_dbg_layer) {
491 acpi_dbg_layer = acpi_gbl_trace_dbg_layer;
492 }
493 }
494
495 (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
496
497exit:
498 if (enabled) {
499 ACPI_TRACE_POINT(ACPI_TRACE_AML_METHOD, TRUE,
500 obj_desc ? obj_desc->method.aml_start : NULL,
501 pathname);
502 }
503 if (pathname) {
504 ACPI_FREE(pathname);
505 }
506}
507
508/*******************************************************************************
509 *
510 * FUNCTION: acpi_ex_stop_trace_method
511 *
512 * PARAMETERS: method_node - Node of the method
513 * obj_desc - The method object
514 * walk_state - current state, NULL if not yet executing
515 * a method.
516 *
517 * RETURN: None
518 *
519 * DESCRIPTION: Stop control method execution trace
520 *
521 ******************************************************************************/
522
523void
524acpi_ex_stop_trace_method(struct acpi_namespace_node *method_node,
525 union acpi_operand_object *obj_desc,
526 struct acpi_walk_state *walk_state)
527{
528 acpi_status status;
529 char *pathname = NULL;
530 u8 enabled;
531
532 ACPI_FUNCTION_NAME(ex_stop_trace_method);
533
534 if (method_node) {
535 pathname = acpi_ns_get_normalized_pathname(method_node, TRUE);
536 }
537
538 status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
539 if (ACPI_FAILURE(status)) {
540 goto exit_path;
541 }
542
543 enabled = acpi_ex_interpreter_trace_enabled(NULL);
544
545 (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
546
547 if (enabled) {
548 ACPI_TRACE_POINT(ACPI_TRACE_AML_METHOD, FALSE,
549 obj_desc ? obj_desc->method.aml_start : NULL,
550 pathname);
551 }
552
553 status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
554 if (ACPI_FAILURE(status)) {
555 goto exit_path;
556 }
557
558 /* Check whether the tracer should be stopped */
559
560 if (acpi_gbl_trace_method_object == obj_desc) {
561
562 /* Disable further tracing if type is one-shot */
563
564 if (acpi_gbl_trace_flags & ACPI_TRACE_ONESHOT) {
565 acpi_gbl_trace_method_name = NULL;
566 }
567
568 acpi_dbg_level = acpi_gbl_original_dbg_level;
569 acpi_dbg_layer = acpi_gbl_original_dbg_layer;
570 acpi_gbl_trace_method_object = NULL;
571 }
572
573 (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
574
575exit_path:
576 if (pathname) {
577 ACPI_FREE(pathname);
578 }
579}
580
581/*******************************************************************************
582 *
583 * FUNCTION: acpi_ex_start_trace_opcode
584 *
585 * PARAMETERS: op - The parser opcode object
586 * walk_state - current state, NULL if not yet executing
587 * a method.
588 *
589 * RETURN: None
590 *
591 * DESCRIPTION: Start opcode execution trace
592 *
593 ******************************************************************************/
594
595void
596acpi_ex_start_trace_opcode(union acpi_parse_object *op,
597 struct acpi_walk_state *walk_state)
598{
599
600 ACPI_FUNCTION_NAME(ex_start_trace_opcode);
601
602 if (acpi_ex_interpreter_trace_enabled(NULL) &&
603 (acpi_gbl_trace_flags & ACPI_TRACE_OPCODE)) {
604 ACPI_TRACE_POINT(ACPI_TRACE_AML_OPCODE, TRUE,
605 op->common.aml, op->common.aml_op_name);
606 }
607}
608
609/*******************************************************************************
610 *
611 * FUNCTION: acpi_ex_stop_trace_opcode
612 *
613 * PARAMETERS: op - The parser opcode object
614 * walk_state - current state, NULL if not yet executing
615 * a method.
616 *
617 * RETURN: None
618 *
619 * DESCRIPTION: Stop opcode execution trace
620 *
621 ******************************************************************************/
622
623void
624acpi_ex_stop_trace_opcode(union acpi_parse_object *op,
625 struct acpi_walk_state *walk_state)
626{
627
628 ACPI_FUNCTION_NAME(ex_stop_trace_opcode);
629
630 if (acpi_ex_interpreter_trace_enabled(NULL) &&
631 (acpi_gbl_trace_flags & ACPI_TRACE_OPCODE)) {
632 ACPI_TRACE_POINT(ACPI_TRACE_AML_OPCODE, FALSE,
633 op->common.aml, op->common.aml_op_name);
634 }
635}
diff --git a/drivers/acpi/acpica/extrace.c b/drivers/acpi/acpica/extrace.c
new file mode 100644
index 000000000000..e4a185eece8a
--- /dev/null
+++ b/drivers/acpi/acpica/extrace.c
@@ -0,0 +1,377 @@
1/******************************************************************************
2 *
3 * Module Name: extrace - Support for interpreter execution tracing
4 *
5 *****************************************************************************/
6
7/*
8 * Copyright (C) 2000 - 2015, Intel Corp.
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#include <acpi/acpi.h>
45#include "accommon.h"
46#include "acnamesp.h"
47#include "acinterp.h"
48
49#define _COMPONENT ACPI_EXECUTER
50ACPI_MODULE_NAME("extrace")
51
52static union acpi_operand_object *acpi_gbl_trace_method_object = NULL;
53
54/* Local prototypes */
55
56#ifdef ACPI_DEBUG_OUTPUT
57static const char *acpi_ex_get_trace_event_name(acpi_trace_event_type type);
58#endif
59
60/*******************************************************************************
61 *
62 * FUNCTION: acpi_ex_interpreter_trace_enabled
63 *
64 * PARAMETERS: name - Whether method name should be matched,
65 * this should be checked before starting
66 * the tracer
67 *
68 * RETURN: TRUE if interpreter trace is enabled.
69 *
70 * DESCRIPTION: Check whether interpreter trace is enabled
71 *
72 ******************************************************************************/
73
74static u8 acpi_ex_interpreter_trace_enabled(char *name)
75{
76
77 /* Check if tracing is enabled */
78
79 if (!(acpi_gbl_trace_flags & ACPI_TRACE_ENABLED)) {
80 return (FALSE);
81 }
82
83 /*
84 * Check if tracing is filtered:
85 *
86 * 1. If the tracer is started, acpi_gbl_trace_method_object should have
87 * been filled by the trace starter
88 * 2. If the tracer is not started, acpi_gbl_trace_method_name should be
89 * matched if it is specified
90 * 3. If the tracer is oneshot style, acpi_gbl_trace_method_name should
91 * not be cleared by the trace stopper during the first match
92 */
93 if (acpi_gbl_trace_method_object) {
94 return (TRUE);
95 }
96
97 if (name &&
98 (acpi_gbl_trace_method_name &&
99 strcmp(acpi_gbl_trace_method_name, name))) {
100 return (FALSE);
101 }
102
103 if ((acpi_gbl_trace_flags & ACPI_TRACE_ONESHOT) &&
104 !acpi_gbl_trace_method_name) {
105 return (FALSE);
106 }
107
108 return (TRUE);
109}
110
111/*******************************************************************************
112 *
113 * FUNCTION: acpi_ex_get_trace_event_name
114 *
115 * PARAMETERS: type - Trace event type
116 *
117 * RETURN: Trace event name.
118 *
119 * DESCRIPTION: Used to obtain the full trace event name.
120 *
121 ******************************************************************************/
122
123#ifdef ACPI_DEBUG_OUTPUT
124
125static const char *acpi_ex_get_trace_event_name(acpi_trace_event_type type)
126{
127
128 switch (type) {
129 case ACPI_TRACE_AML_METHOD:
130
131 return "Method";
132
133 case ACPI_TRACE_AML_OPCODE:
134
135 return "Opcode";
136
137 case ACPI_TRACE_AML_REGION:
138
139 return "Region";
140
141 default:
142
143 return "";
144 }
145}
146
147#endif
148
149/*******************************************************************************
150 *
151 * FUNCTION: acpi_ex_trace_point
152 *
153 * PARAMETERS: type - Trace event type
154 * begin - TRUE if before execution
155 * aml - Executed AML address
156 * pathname - Object path
157 *
158 * RETURN: None
159 *
160 * DESCRIPTION: Internal interpreter execution trace.
161 *
162 ******************************************************************************/
163
164void
165acpi_ex_trace_point(acpi_trace_event_type type,
166 u8 begin, u8 *aml, char *pathname)
167{
168
169 ACPI_FUNCTION_NAME(ex_trace_point);
170
171 if (pathname) {
172 ACPI_DEBUG_PRINT((ACPI_DB_TRACE_POINT,
173 "%s %s [0x%p:%s] execution.\n",
174 acpi_ex_get_trace_event_name(type),
175 begin ? "Begin" : "End", aml, pathname));
176 } else {
177 ACPI_DEBUG_PRINT((ACPI_DB_TRACE_POINT,
178 "%s %s [0x%p] execution.\n",
179 acpi_ex_get_trace_event_name(type),
180 begin ? "Begin" : "End", aml));
181 }
182}
183
184/*******************************************************************************
185 *
186 * FUNCTION: acpi_ex_start_trace_method
187 *
188 * PARAMETERS: method_node - Node of the method
189 * obj_desc - The method object
190 * walk_state - current state, NULL if not yet executing
191 * a method.
192 *
193 * RETURN: None
194 *
195 * DESCRIPTION: Start control method execution trace
196 *
197 ******************************************************************************/
198
199void
200acpi_ex_start_trace_method(struct acpi_namespace_node *method_node,
201 union acpi_operand_object *obj_desc,
202 struct acpi_walk_state *walk_state)
203{
204 acpi_status status;
205 char *pathname = NULL;
206 u8 enabled = FALSE;
207
208 ACPI_FUNCTION_NAME(ex_start_trace_method);
209
210 if (method_node) {
211 pathname = acpi_ns_get_normalized_pathname(method_node, TRUE);
212 }
213
214 status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
215 if (ACPI_FAILURE(status)) {
216 goto exit;
217 }
218
219 enabled = acpi_ex_interpreter_trace_enabled(pathname);
220 if (enabled && !acpi_gbl_trace_method_object) {
221 acpi_gbl_trace_method_object = obj_desc;
222 acpi_gbl_original_dbg_level = acpi_dbg_level;
223 acpi_gbl_original_dbg_layer = acpi_dbg_layer;
224 acpi_dbg_level = ACPI_TRACE_LEVEL_ALL;
225 acpi_dbg_layer = ACPI_TRACE_LAYER_ALL;
226
227 if (acpi_gbl_trace_dbg_level) {
228 acpi_dbg_level = acpi_gbl_trace_dbg_level;
229 }
230
231 if (acpi_gbl_trace_dbg_layer) {
232 acpi_dbg_layer = acpi_gbl_trace_dbg_layer;
233 }
234 }
235
236 (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
237
238exit:
239 if (enabled) {
240 ACPI_TRACE_POINT(ACPI_TRACE_AML_METHOD, TRUE,
241 obj_desc ? obj_desc->method.aml_start : NULL,
242 pathname);
243 }
244
245 if (pathname) {
246 ACPI_FREE(pathname);
247 }
248}
249
250/*******************************************************************************
251 *
252 * FUNCTION: acpi_ex_stop_trace_method
253 *
254 * PARAMETERS: method_node - Node of the method
255 * obj_desc - The method object
256 * walk_state - current state, NULL if not yet executing
257 * a method.
258 *
259 * RETURN: None
260 *
261 * DESCRIPTION: Stop control method execution trace
262 *
263 ******************************************************************************/
264
265void
266acpi_ex_stop_trace_method(struct acpi_namespace_node *method_node,
267 union acpi_operand_object *obj_desc,
268 struct acpi_walk_state *walk_state)
269{
270 acpi_status status;
271 char *pathname = NULL;
272 u8 enabled;
273
274 ACPI_FUNCTION_NAME(ex_stop_trace_method);
275
276 if (method_node) {
277 pathname = acpi_ns_get_normalized_pathname(method_node, TRUE);
278 }
279
280 status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
281 if (ACPI_FAILURE(status)) {
282 goto exit_path;
283 }
284
285 enabled = acpi_ex_interpreter_trace_enabled(NULL);
286
287 (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
288
289 if (enabled) {
290 ACPI_TRACE_POINT(ACPI_TRACE_AML_METHOD, FALSE,
291 obj_desc ? obj_desc->method.aml_start : NULL,
292 pathname);
293 }
294
295 status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
296 if (ACPI_FAILURE(status)) {
297 goto exit_path;
298 }
299
300 /* Check whether the tracer should be stopped */
301
302 if (acpi_gbl_trace_method_object == obj_desc) {
303
304 /* Disable further tracing if type is one-shot */
305
306 if (acpi_gbl_trace_flags & ACPI_TRACE_ONESHOT) {
307 acpi_gbl_trace_method_name = NULL;
308 }
309
310 acpi_dbg_level = acpi_gbl_original_dbg_level;
311 acpi_dbg_layer = acpi_gbl_original_dbg_layer;
312 acpi_gbl_trace_method_object = NULL;
313 }
314
315 (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
316
317exit_path:
318 if (pathname) {
319 ACPI_FREE(pathname);
320 }
321}
322
323/*******************************************************************************
324 *
325 * FUNCTION: acpi_ex_start_trace_opcode
326 *
327 * PARAMETERS: op - The parser opcode object
328 * walk_state - current state, NULL if not yet executing
329 * a method.
330 *
331 * RETURN: None
332 *
333 * DESCRIPTION: Start opcode execution trace
334 *
335 ******************************************************************************/
336
337void
338acpi_ex_start_trace_opcode(union acpi_parse_object *op,
339 struct acpi_walk_state *walk_state)
340{
341
342 ACPI_FUNCTION_NAME(ex_start_trace_opcode);
343
344 if (acpi_ex_interpreter_trace_enabled(NULL) &&
345 (acpi_gbl_trace_flags & ACPI_TRACE_OPCODE)) {
346 ACPI_TRACE_POINT(ACPI_TRACE_AML_OPCODE, TRUE,
347 op->common.aml, op->common.aml_op_name);
348 }
349}
350
351/*******************************************************************************
352 *
353 * FUNCTION: acpi_ex_stop_trace_opcode
354 *
355 * PARAMETERS: op - The parser opcode object
356 * walk_state - current state, NULL if not yet executing
357 * a method.
358 *
359 * RETURN: None
360 *
361 * DESCRIPTION: Stop opcode execution trace
362 *
363 ******************************************************************************/
364
365void
366acpi_ex_stop_trace_opcode(union acpi_parse_object *op,
367 struct acpi_walk_state *walk_state)
368{
369
370 ACPI_FUNCTION_NAME(ex_stop_trace_opcode);
371
372 if (acpi_ex_interpreter_trace_enabled(NULL) &&
373 (acpi_gbl_trace_flags & ACPI_TRACE_OPCODE)) {
374 ACPI_TRACE_POINT(ACPI_TRACE_AML_OPCODE, FALSE,
375 op->common.aml, op->common.aml_op_name);
376 }
377}