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1// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0
2/******************************************************************************
3 *
4 * Module Name: utdebug - Debug print/trace routines
5 *
6 * Copyright (C) 2000 - 2023, Intel Corp.
7 *
8 *****************************************************************************/
9
10#define EXPORT_ACPI_INTERFACES
11
12#include <acpi/acpi.h>
13#include "accommon.h"
14#include "acinterp.h"
15
16#define _COMPONENT ACPI_UTILITIES
17ACPI_MODULE_NAME("utdebug")
18
19#ifdef ACPI_DEBUG_OUTPUT
20static acpi_thread_id acpi_gbl_previous_thread_id = (acpi_thread_id) 0xFFFFFFFF;
21static const char *acpi_gbl_function_entry_prefix = "----Entry";
22static const char *acpi_gbl_function_exit_prefix = "----Exit-";
23
24/*******************************************************************************
25 *
26 * FUNCTION: acpi_ut_init_stack_ptr_trace
27 *
28 * PARAMETERS: None
29 *
30 * RETURN: None
31 *
32 * DESCRIPTION: Save the current CPU stack pointer at subsystem startup
33 *
34 ******************************************************************************/
35
36void acpi_ut_init_stack_ptr_trace(void)
37{
38 acpi_size current_sp;
39
40#pragma GCC diagnostic push
41#if defined(__GNUC__) && __GNUC__ >= 12
42#pragma GCC diagnostic ignored "-Wdangling-pointer="
43#endif
44 acpi_gbl_entry_stack_pointer = ¤t_sp;
45#pragma GCC diagnostic pop
46}
47
48/*******************************************************************************
49 *
50 * FUNCTION: acpi_ut_track_stack_ptr
51 *
52 * PARAMETERS: None
53 *
54 * RETURN: None
55 *
56 * DESCRIPTION: Save the current CPU stack pointer
57 *
58 ******************************************************************************/
59
60void acpi_ut_track_stack_ptr(void)
61{
62 acpi_size current_sp;
63
64 if (¤t_sp < acpi_gbl_lowest_stack_pointer) {
65#pragma GCC diagnostic push
66#if defined(__GNUC__) && __GNUC__ >= 12
67#pragma GCC diagnostic ignored "-Wdangling-pointer="
68#endif
69 acpi_gbl_lowest_stack_pointer = ¤t_sp;
70#pragma GCC diagnostic pop
71 }
72
73 if (acpi_gbl_nesting_level > acpi_gbl_deepest_nesting) {
74 acpi_gbl_deepest_nesting = acpi_gbl_nesting_level;
75 }
76}
77
78/*******************************************************************************
79 *
80 * FUNCTION: acpi_ut_trim_function_name
81 *
82 * PARAMETERS: function_name - Ascii string containing a procedure name
83 *
84 * RETURN: Updated pointer to the function name
85 *
86 * DESCRIPTION: Remove the "Acpi" prefix from the function name, if present.
87 * This allows compiler macros such as __func__ to be used
88 * with no change to the debug output.
89 *
90 ******************************************************************************/
91
92static const char *acpi_ut_trim_function_name(const char *function_name)
93{
94
95 /* All Function names are longer than 4 chars, check is safe */
96
97 if (*(ACPI_CAST_PTR(u32, function_name)) == ACPI_PREFIX_MIXED) {
98
99 /* This is the case where the original source has not been modified */
100
101 return (function_name + 4);
102 }
103
104 if (*(ACPI_CAST_PTR(u32, function_name)) == ACPI_PREFIX_LOWER) {
105
106 /* This is the case where the source has been 'linuxized' */
107
108 return (function_name + 5);
109 }
110
111 return (function_name);
112}
113
114/*******************************************************************************
115 *
116 * FUNCTION: acpi_debug_print
117 *
118 * PARAMETERS: requested_debug_level - Requested debug print level
119 * line_number - Caller's line number (for error output)
120 * function_name - Caller's procedure name
121 * module_name - Caller's module name
122 * component_id - Caller's component ID
123 * format - Printf format field
124 * ... - Optional printf arguments
125 *
126 * RETURN: None
127 *
128 * DESCRIPTION: Print error message with prefix consisting of the module name,
129 * line number, and component ID.
130 *
131 ******************************************************************************/
132
133void ACPI_INTERNAL_VAR_XFACE
134acpi_debug_print(u32 requested_debug_level,
135 u32 line_number,
136 const char *function_name,
137 const char *module_name,
138 u32 component_id, const char *format, ...)
139{
140 acpi_thread_id thread_id;
141 va_list args;
142#ifdef ACPI_APPLICATION
143 int fill_count;
144#endif
145
146 /* Check if debug output enabled */
147
148 if (!ACPI_IS_DEBUG_ENABLED(requested_debug_level, component_id)) {
149 return;
150 }
151
152 /*
153 * Thread tracking and context switch notification
154 */
155 thread_id = acpi_os_get_thread_id();
156 if (thread_id != acpi_gbl_previous_thread_id) {
157 if (ACPI_LV_THREADS & acpi_dbg_level) {
158 acpi_os_printf
159 ("\n**** Context Switch from TID %u to TID %u ****\n\n",
160 (u32)acpi_gbl_previous_thread_id, (u32)thread_id);
161 }
162
163 acpi_gbl_previous_thread_id = thread_id;
164 acpi_gbl_nesting_level = 0;
165 }
166
167 /*
168 * Display the module name, current line number, thread ID (if requested),
169 * current procedure nesting level, and the current procedure name
170 */
171 acpi_os_printf("%9s-%04d ", module_name, line_number);
172
173#ifdef ACPI_APPLICATION
174 /*
175 * For acpi_exec/iASL only, emit the thread ID and nesting level.
176 * Note: nesting level is really only useful during a single-thread
177 * execution. Otherwise, multiple threads will keep resetting the
178 * level.
179 */
180 if (ACPI_LV_THREADS & acpi_dbg_level) {
181 acpi_os_printf("[%u] ", (u32)thread_id);
182 }
183
184 fill_count = 48 - acpi_gbl_nesting_level -
185 strlen(acpi_ut_trim_function_name(function_name));
186 if (fill_count < 0) {
187 fill_count = 0;
188 }
189
190 acpi_os_printf("[%02d] %*s",
191 acpi_gbl_nesting_level, acpi_gbl_nesting_level + 1, " ");
192 acpi_os_printf("%s%*s: ",
193 acpi_ut_trim_function_name(function_name), fill_count,
194 " ");
195
196#else
197 acpi_os_printf("%-22.22s: ", acpi_ut_trim_function_name(function_name));
198#endif
199
200 va_start(args, format);
201 acpi_os_vprintf(format, args);
202 va_end(args);
203}
204
205ACPI_EXPORT_SYMBOL(acpi_debug_print)
206
207/*******************************************************************************
208 *
209 * FUNCTION: acpi_debug_print_raw
210 *
211 * PARAMETERS: requested_debug_level - Requested debug print level
212 * line_number - Caller's line number
213 * function_name - Caller's procedure name
214 * module_name - Caller's module name
215 * component_id - Caller's component ID
216 * format - Printf format field
217 * ... - Optional printf arguments
218 *
219 * RETURN: None
220 *
221 * DESCRIPTION: Print message with no headers. Has same interface as
222 * debug_print so that the same macros can be used.
223 *
224 ******************************************************************************/
225void ACPI_INTERNAL_VAR_XFACE
226acpi_debug_print_raw(u32 requested_debug_level,
227 u32 line_number,
228 const char *function_name,
229 const char *module_name,
230 u32 component_id, const char *format, ...)
231{
232 va_list args;
233
234 /* Check if debug output enabled */
235
236 if (!ACPI_IS_DEBUG_ENABLED(requested_debug_level, component_id)) {
237 return;
238 }
239
240 va_start(args, format);
241 acpi_os_vprintf(format, args);
242 va_end(args);
243}
244
245ACPI_EXPORT_SYMBOL(acpi_debug_print_raw)
246
247/*******************************************************************************
248 *
249 * FUNCTION: acpi_ut_trace
250 *
251 * PARAMETERS: line_number - Caller's line number
252 * function_name - Caller's procedure name
253 * module_name - Caller's module name
254 * component_id - Caller's component ID
255 *
256 * RETURN: None
257 *
258 * DESCRIPTION: Function entry trace. Prints only if TRACE_FUNCTIONS bit is
259 * set in debug_level
260 *
261 ******************************************************************************/
262void
263acpi_ut_trace(u32 line_number,
264 const char *function_name,
265 const char *module_name, u32 component_id)
266{
267
268 acpi_gbl_nesting_level++;
269 acpi_ut_track_stack_ptr();
270
271 /* Check if enabled up-front for performance */
272
273 if (ACPI_IS_DEBUG_ENABLED(ACPI_LV_FUNCTIONS, component_id)) {
274 acpi_debug_print(ACPI_LV_FUNCTIONS,
275 line_number, function_name, module_name,
276 component_id, "%s\n",
277 acpi_gbl_function_entry_prefix);
278 }
279}
280
281ACPI_EXPORT_SYMBOL(acpi_ut_trace)
282
283/*******************************************************************************
284 *
285 * FUNCTION: acpi_ut_trace_ptr
286 *
287 * PARAMETERS: line_number - Caller's line number
288 * function_name - Caller's procedure name
289 * module_name - Caller's module name
290 * component_id - Caller's component ID
291 * pointer - Pointer to display
292 *
293 * RETURN: None
294 *
295 * DESCRIPTION: Function entry trace. Prints only if TRACE_FUNCTIONS bit is
296 * set in debug_level
297 *
298 ******************************************************************************/
299void
300acpi_ut_trace_ptr(u32 line_number,
301 const char *function_name,
302 const char *module_name,
303 u32 component_id, const void *pointer)
304{
305
306 acpi_gbl_nesting_level++;
307 acpi_ut_track_stack_ptr();
308
309 /* Check if enabled up-front for performance */
310
311 if (ACPI_IS_DEBUG_ENABLED(ACPI_LV_FUNCTIONS, component_id)) {
312 acpi_debug_print(ACPI_LV_FUNCTIONS,
313 line_number, function_name, module_name,
314 component_id, "%s %p\n",
315 acpi_gbl_function_entry_prefix, pointer);
316 }
317}
318
319/*******************************************************************************
320 *
321 * FUNCTION: acpi_ut_trace_str
322 *
323 * PARAMETERS: line_number - Caller's line number
324 * function_name - Caller's procedure name
325 * module_name - Caller's module name
326 * component_id - Caller's component ID
327 * string - Additional string to display
328 *
329 * RETURN: None
330 *
331 * DESCRIPTION: Function entry trace. Prints only if TRACE_FUNCTIONS bit is
332 * set in debug_level
333 *
334 ******************************************************************************/
335
336void
337acpi_ut_trace_str(u32 line_number,
338 const char *function_name,
339 const char *module_name, u32 component_id, const char *string)
340{
341
342 acpi_gbl_nesting_level++;
343 acpi_ut_track_stack_ptr();
344
345 /* Check if enabled up-front for performance */
346
347 if (ACPI_IS_DEBUG_ENABLED(ACPI_LV_FUNCTIONS, component_id)) {
348 acpi_debug_print(ACPI_LV_FUNCTIONS,
349 line_number, function_name, module_name,
350 component_id, "%s %s\n",
351 acpi_gbl_function_entry_prefix, string);
352 }
353}
354
355/*******************************************************************************
356 *
357 * FUNCTION: acpi_ut_trace_u32
358 *
359 * PARAMETERS: line_number - Caller's line number
360 * function_name - Caller's procedure name
361 * module_name - Caller's module name
362 * component_id - Caller's component ID
363 * integer - Integer to display
364 *
365 * RETURN: None
366 *
367 * DESCRIPTION: Function entry trace. Prints only if TRACE_FUNCTIONS bit is
368 * set in debug_level
369 *
370 ******************************************************************************/
371
372void
373acpi_ut_trace_u32(u32 line_number,
374 const char *function_name,
375 const char *module_name, u32 component_id, u32 integer)
376{
377
378 acpi_gbl_nesting_level++;
379 acpi_ut_track_stack_ptr();
380
381 /* Check if enabled up-front for performance */
382
383 if (ACPI_IS_DEBUG_ENABLED(ACPI_LV_FUNCTIONS, component_id)) {
384 acpi_debug_print(ACPI_LV_FUNCTIONS,
385 line_number, function_name, module_name,
386 component_id, "%s %08X\n",
387 acpi_gbl_function_entry_prefix, integer);
388 }
389}
390
391/*******************************************************************************
392 *
393 * FUNCTION: acpi_ut_exit
394 *
395 * PARAMETERS: line_number - Caller's line number
396 * function_name - Caller's procedure name
397 * module_name - Caller's module name
398 * component_id - Caller's component ID
399 *
400 * RETURN: None
401 *
402 * DESCRIPTION: Function exit trace. Prints only if TRACE_FUNCTIONS bit is
403 * set in debug_level
404 *
405 ******************************************************************************/
406
407void
408acpi_ut_exit(u32 line_number,
409 const char *function_name,
410 const char *module_name, u32 component_id)
411{
412
413 /* Check if enabled up-front for performance */
414
415 if (ACPI_IS_DEBUG_ENABLED(ACPI_LV_FUNCTIONS, component_id)) {
416 acpi_debug_print(ACPI_LV_FUNCTIONS,
417 line_number, function_name, module_name,
418 component_id, "%s\n",
419 acpi_gbl_function_exit_prefix);
420 }
421
422 if (acpi_gbl_nesting_level) {
423 acpi_gbl_nesting_level--;
424 }
425}
426
427ACPI_EXPORT_SYMBOL(acpi_ut_exit)
428
429/*******************************************************************************
430 *
431 * FUNCTION: acpi_ut_status_exit
432 *
433 * PARAMETERS: line_number - Caller's line number
434 * function_name - Caller's procedure name
435 * module_name - Caller's module name
436 * component_id - Caller's component ID
437 * status - Exit status code
438 *
439 * RETURN: None
440 *
441 * DESCRIPTION: Function exit trace. Prints only if TRACE_FUNCTIONS bit is
442 * set in debug_level. Prints exit status also.
443 *
444 ******************************************************************************/
445void
446acpi_ut_status_exit(u32 line_number,
447 const char *function_name,
448 const char *module_name,
449 u32 component_id, acpi_status status)
450{
451
452 /* Check if enabled up-front for performance */
453
454 if (ACPI_IS_DEBUG_ENABLED(ACPI_LV_FUNCTIONS, component_id)) {
455 if (ACPI_SUCCESS(status)) {
456 acpi_debug_print(ACPI_LV_FUNCTIONS,
457 line_number, function_name,
458 module_name, component_id, "%s %s\n",
459 acpi_gbl_function_exit_prefix,
460 acpi_format_exception(status));
461 } else {
462 acpi_debug_print(ACPI_LV_FUNCTIONS,
463 line_number, function_name,
464 module_name, component_id,
465 "%s ****Exception****: %s\n",
466 acpi_gbl_function_exit_prefix,
467 acpi_format_exception(status));
468 }
469 }
470
471 if (acpi_gbl_nesting_level) {
472 acpi_gbl_nesting_level--;
473 }
474}
475
476ACPI_EXPORT_SYMBOL(acpi_ut_status_exit)
477
478/*******************************************************************************
479 *
480 * FUNCTION: acpi_ut_value_exit
481 *
482 * PARAMETERS: line_number - Caller's line number
483 * function_name - Caller's procedure name
484 * module_name - Caller's module name
485 * component_id - Caller's component ID
486 * value - Value to be printed with exit msg
487 *
488 * RETURN: None
489 *
490 * DESCRIPTION: Function exit trace. Prints only if TRACE_FUNCTIONS bit is
491 * set in debug_level. Prints exit value also.
492 *
493 ******************************************************************************/
494void
495acpi_ut_value_exit(u32 line_number,
496 const char *function_name,
497 const char *module_name, u32 component_id, u64 value)
498{
499
500 /* Check if enabled up-front for performance */
501
502 if (ACPI_IS_DEBUG_ENABLED(ACPI_LV_FUNCTIONS, component_id)) {
503 acpi_debug_print(ACPI_LV_FUNCTIONS,
504 line_number, function_name, module_name,
505 component_id, "%s %8.8X%8.8X\n",
506 acpi_gbl_function_exit_prefix,
507 ACPI_FORMAT_UINT64(value));
508 }
509
510 if (acpi_gbl_nesting_level) {
511 acpi_gbl_nesting_level--;
512 }
513}
514
515ACPI_EXPORT_SYMBOL(acpi_ut_value_exit)
516
517/*******************************************************************************
518 *
519 * FUNCTION: acpi_ut_ptr_exit
520 *
521 * PARAMETERS: line_number - Caller's line number
522 * function_name - Caller's procedure name
523 * module_name - Caller's module name
524 * component_id - Caller's component ID
525 * ptr - Pointer to display
526 *
527 * RETURN: None
528 *
529 * DESCRIPTION: Function exit trace. Prints only if TRACE_FUNCTIONS bit is
530 * set in debug_level. Prints exit value also.
531 *
532 ******************************************************************************/
533void
534acpi_ut_ptr_exit(u32 line_number,
535 const char *function_name,
536 const char *module_name, u32 component_id, u8 *ptr)
537{
538
539 /* Check if enabled up-front for performance */
540
541 if (ACPI_IS_DEBUG_ENABLED(ACPI_LV_FUNCTIONS, component_id)) {
542 acpi_debug_print(ACPI_LV_FUNCTIONS,
543 line_number, function_name, module_name,
544 component_id, "%s %p\n",
545 acpi_gbl_function_exit_prefix, ptr);
546 }
547
548 if (acpi_gbl_nesting_level) {
549 acpi_gbl_nesting_level--;
550 }
551}
552
553/*******************************************************************************
554 *
555 * FUNCTION: acpi_ut_str_exit
556 *
557 * PARAMETERS: line_number - Caller's line number
558 * function_name - Caller's procedure name
559 * module_name - Caller's module name
560 * component_id - Caller's component ID
561 * string - String to display
562 *
563 * RETURN: None
564 *
565 * DESCRIPTION: Function exit trace. Prints only if TRACE_FUNCTIONS bit is
566 * set in debug_level. Prints exit value also.
567 *
568 ******************************************************************************/
569
570void
571acpi_ut_str_exit(u32 line_number,
572 const char *function_name,
573 const char *module_name, u32 component_id, const char *string)
574{
575
576 /* Check if enabled up-front for performance */
577
578 if (ACPI_IS_DEBUG_ENABLED(ACPI_LV_FUNCTIONS, component_id)) {
579 acpi_debug_print(ACPI_LV_FUNCTIONS,
580 line_number, function_name, module_name,
581 component_id, "%s %s\n",
582 acpi_gbl_function_exit_prefix, string);
583 }
584
585 if (acpi_gbl_nesting_level) {
586 acpi_gbl_nesting_level--;
587 }
588}
589
590/*******************************************************************************
591 *
592 * FUNCTION: acpi_trace_point
593 *
594 * PARAMETERS: type - Trace event type
595 * begin - TRUE if before execution
596 * aml - Executed AML address
597 * pathname - Object path
598 * pointer - Pointer to the related object
599 *
600 * RETURN: None
601 *
602 * DESCRIPTION: Interpreter execution trace.
603 *
604 ******************************************************************************/
605
606void
607acpi_trace_point(acpi_trace_event_type type, u8 begin, u8 *aml, char *pathname)
608{
609
610 ACPI_FUNCTION_ENTRY();
611
612 acpi_ex_trace_point(type, begin, aml, pathname);
613
614#ifdef ACPI_USE_SYSTEM_TRACER
615 acpi_os_trace_point(type, begin, aml, pathname);
616#endif
617}
618
619ACPI_EXPORT_SYMBOL(acpi_trace_point)
620
621#endif
1/******************************************************************************
2 *
3 * Module Name: utdebug - Debug print/trace routines
4 *
5 *****************************************************************************/
6
7/*
8 * Copyright (C) 2000 - 2016, 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#define EXPORT_ACPI_INTERFACES
45
46#include <acpi/acpi.h>
47#include "accommon.h"
48#include "acinterp.h"
49
50#define _COMPONENT ACPI_UTILITIES
51ACPI_MODULE_NAME("utdebug")
52
53#ifdef ACPI_DEBUG_OUTPUT
54static acpi_thread_id acpi_gbl_prev_thread_id = (acpi_thread_id) 0xFFFFFFFF;
55static char *acpi_gbl_fn_entry_str = "----Entry";
56static char *acpi_gbl_fn_exit_str = "----Exit-";
57
58/* Local prototypes */
59
60static const char *acpi_ut_trim_function_name(const char *function_name);
61
62/*******************************************************************************
63 *
64 * FUNCTION: acpi_ut_init_stack_ptr_trace
65 *
66 * PARAMETERS: None
67 *
68 * RETURN: None
69 *
70 * DESCRIPTION: Save the current CPU stack pointer at subsystem startup
71 *
72 ******************************************************************************/
73
74void acpi_ut_init_stack_ptr_trace(void)
75{
76 acpi_size current_sp;
77
78 acpi_gbl_entry_stack_pointer = ¤t_sp;
79}
80
81/*******************************************************************************
82 *
83 * FUNCTION: acpi_ut_track_stack_ptr
84 *
85 * PARAMETERS: None
86 *
87 * RETURN: None
88 *
89 * DESCRIPTION: Save the current CPU stack pointer
90 *
91 ******************************************************************************/
92
93void acpi_ut_track_stack_ptr(void)
94{
95 acpi_size current_sp;
96
97 if (¤t_sp < acpi_gbl_lowest_stack_pointer) {
98 acpi_gbl_lowest_stack_pointer = ¤t_sp;
99 }
100
101 if (acpi_gbl_nesting_level > acpi_gbl_deepest_nesting) {
102 acpi_gbl_deepest_nesting = acpi_gbl_nesting_level;
103 }
104}
105
106/*******************************************************************************
107 *
108 * FUNCTION: acpi_ut_trim_function_name
109 *
110 * PARAMETERS: function_name - Ascii string containing a procedure name
111 *
112 * RETURN: Updated pointer to the function name
113 *
114 * DESCRIPTION: Remove the "Acpi" prefix from the function name, if present.
115 * This allows compiler macros such as __func__ to be used
116 * with no change to the debug output.
117 *
118 ******************************************************************************/
119
120static const char *acpi_ut_trim_function_name(const char *function_name)
121{
122
123 /* All Function names are longer than 4 chars, check is safe */
124
125 if (*(ACPI_CAST_PTR(u32, function_name)) == ACPI_PREFIX_MIXED) {
126
127 /* This is the case where the original source has not been modified */
128
129 return (function_name + 4);
130 }
131
132 if (*(ACPI_CAST_PTR(u32, function_name)) == ACPI_PREFIX_LOWER) {
133
134 /* This is the case where the source has been 'linuxized' */
135
136 return (function_name + 5);
137 }
138
139 return (function_name);
140}
141
142/*******************************************************************************
143 *
144 * FUNCTION: acpi_debug_print
145 *
146 * PARAMETERS: requested_debug_level - Requested debug print level
147 * line_number - Caller's line number (for error output)
148 * function_name - Caller's procedure name
149 * module_name - Caller's module name
150 * component_id - Caller's component ID
151 * format - Printf format field
152 * ... - Optional printf arguments
153 *
154 * RETURN: None
155 *
156 * DESCRIPTION: Print error message with prefix consisting of the module name,
157 * line number, and component ID.
158 *
159 ******************************************************************************/
160
161void ACPI_INTERNAL_VAR_XFACE
162acpi_debug_print(u32 requested_debug_level,
163 u32 line_number,
164 const char *function_name,
165 const char *module_name,
166 u32 component_id, const char *format, ...)
167{
168 acpi_thread_id thread_id;
169 va_list args;
170
171 /* Check if debug output enabled */
172
173 if (!ACPI_IS_DEBUG_ENABLED(requested_debug_level, component_id)) {
174 return;
175 }
176
177 /*
178 * Thread tracking and context switch notification
179 */
180 thread_id = acpi_os_get_thread_id();
181 if (thread_id != acpi_gbl_prev_thread_id) {
182 if (ACPI_LV_THREADS & acpi_dbg_level) {
183 acpi_os_printf
184 ("\n**** Context Switch from TID %u to TID %u ****\n\n",
185 (u32)acpi_gbl_prev_thread_id, (u32)thread_id);
186 }
187
188 acpi_gbl_prev_thread_id = thread_id;
189 acpi_gbl_nesting_level = 0;
190 }
191
192 /*
193 * Display the module name, current line number, thread ID (if requested),
194 * current procedure nesting level, and the current procedure name
195 */
196 acpi_os_printf("%9s-%04ld ", module_name, line_number);
197
198#ifdef ACPI_APPLICATION
199 /*
200 * For acpi_exec/iASL only, emit the thread ID and nesting level.
201 * Note: nesting level is really only useful during a single-thread
202 * execution. Otherwise, multiple threads will keep resetting the
203 * level.
204 */
205 if (ACPI_LV_THREADS & acpi_dbg_level) {
206 acpi_os_printf("[%u] ", (u32)thread_id);
207 }
208
209 acpi_os_printf("[%02ld] ", acpi_gbl_nesting_level);
210#endif
211
212 acpi_os_printf("%-22.22s: ", acpi_ut_trim_function_name(function_name));
213
214 va_start(args, format);
215 acpi_os_vprintf(format, args);
216 va_end(args);
217}
218
219ACPI_EXPORT_SYMBOL(acpi_debug_print)
220
221/*******************************************************************************
222 *
223 * FUNCTION: acpi_debug_print_raw
224 *
225 * PARAMETERS: requested_debug_level - Requested debug print level
226 * line_number - Caller's line number
227 * function_name - Caller's procedure name
228 * module_name - Caller's module name
229 * component_id - Caller's component ID
230 * format - Printf format field
231 * ... - Optional printf arguments
232 *
233 * RETURN: None
234 *
235 * DESCRIPTION: Print message with no headers. Has same interface as
236 * debug_print so that the same macros can be used.
237 *
238 ******************************************************************************/
239void ACPI_INTERNAL_VAR_XFACE
240acpi_debug_print_raw(u32 requested_debug_level,
241 u32 line_number,
242 const char *function_name,
243 const char *module_name,
244 u32 component_id, const char *format, ...)
245{
246 va_list args;
247
248 /* Check if debug output enabled */
249
250 if (!ACPI_IS_DEBUG_ENABLED(requested_debug_level, component_id)) {
251 return;
252 }
253
254 va_start(args, format);
255 acpi_os_vprintf(format, args);
256 va_end(args);
257}
258
259ACPI_EXPORT_SYMBOL(acpi_debug_print_raw)
260
261/*******************************************************************************
262 *
263 * FUNCTION: acpi_ut_trace
264 *
265 * PARAMETERS: line_number - Caller's line number
266 * function_name - Caller's procedure name
267 * module_name - Caller's module name
268 * component_id - Caller's component ID
269 *
270 * RETURN: None
271 *
272 * DESCRIPTION: Function entry trace. Prints only if TRACE_FUNCTIONS bit is
273 * set in debug_level
274 *
275 ******************************************************************************/
276void
277acpi_ut_trace(u32 line_number,
278 const char *function_name,
279 const char *module_name, u32 component_id)
280{
281
282 acpi_gbl_nesting_level++;
283 acpi_ut_track_stack_ptr();
284
285 /* Check if enabled up-front for performance */
286
287 if (ACPI_IS_DEBUG_ENABLED(ACPI_LV_FUNCTIONS, component_id)) {
288 acpi_debug_print(ACPI_LV_FUNCTIONS,
289 line_number, function_name, module_name,
290 component_id, "%s\n", acpi_gbl_fn_entry_str);
291 }
292}
293
294ACPI_EXPORT_SYMBOL(acpi_ut_trace)
295
296/*******************************************************************************
297 *
298 * FUNCTION: acpi_ut_trace_ptr
299 *
300 * PARAMETERS: line_number - Caller's line number
301 * function_name - Caller's procedure name
302 * module_name - Caller's module name
303 * component_id - Caller's component ID
304 * pointer - Pointer to display
305 *
306 * RETURN: None
307 *
308 * DESCRIPTION: Function entry trace. Prints only if TRACE_FUNCTIONS bit is
309 * set in debug_level
310 *
311 ******************************************************************************/
312void
313acpi_ut_trace_ptr(u32 line_number,
314 const char *function_name,
315 const char *module_name, u32 component_id, void *pointer)
316{
317
318 acpi_gbl_nesting_level++;
319 acpi_ut_track_stack_ptr();
320
321 /* Check if enabled up-front for performance */
322
323 if (ACPI_IS_DEBUG_ENABLED(ACPI_LV_FUNCTIONS, component_id)) {
324 acpi_debug_print(ACPI_LV_FUNCTIONS,
325 line_number, function_name, module_name,
326 component_id, "%s %p\n", acpi_gbl_fn_entry_str,
327 pointer);
328 }
329}
330
331/*******************************************************************************
332 *
333 * FUNCTION: acpi_ut_trace_str
334 *
335 * PARAMETERS: line_number - Caller's line number
336 * function_name - Caller's procedure name
337 * module_name - Caller's module name
338 * component_id - Caller's component ID
339 * string - Additional string to display
340 *
341 * RETURN: None
342 *
343 * DESCRIPTION: Function entry trace. Prints only if TRACE_FUNCTIONS bit is
344 * set in debug_level
345 *
346 ******************************************************************************/
347
348void
349acpi_ut_trace_str(u32 line_number,
350 const char *function_name,
351 const char *module_name, u32 component_id, char *string)
352{
353
354 acpi_gbl_nesting_level++;
355 acpi_ut_track_stack_ptr();
356
357 /* Check if enabled up-front for performance */
358
359 if (ACPI_IS_DEBUG_ENABLED(ACPI_LV_FUNCTIONS, component_id)) {
360 acpi_debug_print(ACPI_LV_FUNCTIONS,
361 line_number, function_name, module_name,
362 component_id, "%s %s\n", acpi_gbl_fn_entry_str,
363 string);
364 }
365}
366
367/*******************************************************************************
368 *
369 * FUNCTION: acpi_ut_trace_u32
370 *
371 * PARAMETERS: line_number - Caller's line number
372 * function_name - Caller's procedure name
373 * module_name - Caller's module name
374 * component_id - Caller's component ID
375 * integer - Integer to display
376 *
377 * RETURN: None
378 *
379 * DESCRIPTION: Function entry trace. Prints only if TRACE_FUNCTIONS bit is
380 * set in debug_level
381 *
382 ******************************************************************************/
383
384void
385acpi_ut_trace_u32(u32 line_number,
386 const char *function_name,
387 const char *module_name, u32 component_id, u32 integer)
388{
389
390 acpi_gbl_nesting_level++;
391 acpi_ut_track_stack_ptr();
392
393 /* Check if enabled up-front for performance */
394
395 if (ACPI_IS_DEBUG_ENABLED(ACPI_LV_FUNCTIONS, component_id)) {
396 acpi_debug_print(ACPI_LV_FUNCTIONS,
397 line_number, function_name, module_name,
398 component_id, "%s %08X\n",
399 acpi_gbl_fn_entry_str, integer);
400 }
401}
402
403/*******************************************************************************
404 *
405 * FUNCTION: acpi_ut_exit
406 *
407 * PARAMETERS: line_number - Caller's line number
408 * function_name - Caller's procedure name
409 * module_name - Caller's module name
410 * component_id - Caller's component ID
411 *
412 * RETURN: None
413 *
414 * DESCRIPTION: Function exit trace. Prints only if TRACE_FUNCTIONS bit is
415 * set in debug_level
416 *
417 ******************************************************************************/
418
419void
420acpi_ut_exit(u32 line_number,
421 const char *function_name,
422 const char *module_name, u32 component_id)
423{
424
425 /* Check if enabled up-front for performance */
426
427 if (ACPI_IS_DEBUG_ENABLED(ACPI_LV_FUNCTIONS, component_id)) {
428 acpi_debug_print(ACPI_LV_FUNCTIONS,
429 line_number, function_name, module_name,
430 component_id, "%s\n", acpi_gbl_fn_exit_str);
431 }
432
433 if (acpi_gbl_nesting_level) {
434 acpi_gbl_nesting_level--;
435 }
436}
437
438ACPI_EXPORT_SYMBOL(acpi_ut_exit)
439
440/*******************************************************************************
441 *
442 * FUNCTION: acpi_ut_status_exit
443 *
444 * PARAMETERS: line_number - Caller's line number
445 * function_name - Caller's procedure name
446 * module_name - Caller's module name
447 * component_id - Caller's component ID
448 * status - Exit status code
449 *
450 * RETURN: None
451 *
452 * DESCRIPTION: Function exit trace. Prints only if TRACE_FUNCTIONS bit is
453 * set in debug_level. Prints exit status also.
454 *
455 ******************************************************************************/
456void
457acpi_ut_status_exit(u32 line_number,
458 const char *function_name,
459 const char *module_name,
460 u32 component_id, acpi_status status)
461{
462
463 /* Check if enabled up-front for performance */
464
465 if (ACPI_IS_DEBUG_ENABLED(ACPI_LV_FUNCTIONS, component_id)) {
466 if (ACPI_SUCCESS(status)) {
467 acpi_debug_print(ACPI_LV_FUNCTIONS,
468 line_number, function_name,
469 module_name, component_id, "%s %s\n",
470 acpi_gbl_fn_exit_str,
471 acpi_format_exception(status));
472 } else {
473 acpi_debug_print(ACPI_LV_FUNCTIONS,
474 line_number, function_name,
475 module_name, component_id,
476 "%s ****Exception****: %s\n",
477 acpi_gbl_fn_exit_str,
478 acpi_format_exception(status));
479 }
480 }
481
482 if (acpi_gbl_nesting_level) {
483 acpi_gbl_nesting_level--;
484 }
485}
486
487ACPI_EXPORT_SYMBOL(acpi_ut_status_exit)
488
489/*******************************************************************************
490 *
491 * FUNCTION: acpi_ut_value_exit
492 *
493 * PARAMETERS: line_number - Caller's line number
494 * function_name - Caller's procedure name
495 * module_name - Caller's module name
496 * component_id - Caller's component ID
497 * value - Value to be printed with exit msg
498 *
499 * RETURN: None
500 *
501 * DESCRIPTION: Function exit trace. Prints only if TRACE_FUNCTIONS bit is
502 * set in debug_level. Prints exit value also.
503 *
504 ******************************************************************************/
505void
506acpi_ut_value_exit(u32 line_number,
507 const char *function_name,
508 const char *module_name, u32 component_id, u64 value)
509{
510
511 /* Check if enabled up-front for performance */
512
513 if (ACPI_IS_DEBUG_ENABLED(ACPI_LV_FUNCTIONS, component_id)) {
514 acpi_debug_print(ACPI_LV_FUNCTIONS,
515 line_number, function_name, module_name,
516 component_id, "%s %8.8X%8.8X\n",
517 acpi_gbl_fn_exit_str,
518 ACPI_FORMAT_UINT64(value));
519 }
520
521 if (acpi_gbl_nesting_level) {
522 acpi_gbl_nesting_level--;
523 }
524}
525
526ACPI_EXPORT_SYMBOL(acpi_ut_value_exit)
527
528/*******************************************************************************
529 *
530 * FUNCTION: acpi_ut_ptr_exit
531 *
532 * PARAMETERS: line_number - Caller's line number
533 * function_name - Caller's procedure name
534 * module_name - Caller's module name
535 * component_id - Caller's component ID
536 * ptr - Pointer to display
537 *
538 * RETURN: None
539 *
540 * DESCRIPTION: Function exit trace. Prints only if TRACE_FUNCTIONS bit is
541 * set in debug_level. Prints exit value also.
542 *
543 ******************************************************************************/
544void
545acpi_ut_ptr_exit(u32 line_number,
546 const char *function_name,
547 const char *module_name, u32 component_id, u8 *ptr)
548{
549
550 /* Check if enabled up-front for performance */
551
552 if (ACPI_IS_DEBUG_ENABLED(ACPI_LV_FUNCTIONS, component_id)) {
553 acpi_debug_print(ACPI_LV_FUNCTIONS,
554 line_number, function_name, module_name,
555 component_id, "%s %p\n", acpi_gbl_fn_exit_str,
556 ptr);
557 }
558
559 if (acpi_gbl_nesting_level) {
560 acpi_gbl_nesting_level--;
561 }
562}
563
564/*******************************************************************************
565 *
566 * FUNCTION: acpi_trace_point
567 *
568 * PARAMETERS: type - Trace event type
569 * begin - TRUE if before execution
570 * aml - Executed AML address
571 * pathname - Object path
572 * pointer - Pointer to the related object
573 *
574 * RETURN: None
575 *
576 * DESCRIPTION: Interpreter execution trace.
577 *
578 ******************************************************************************/
579
580void
581acpi_trace_point(acpi_trace_event_type type, u8 begin, u8 *aml, char *pathname)
582{
583
584 ACPI_FUNCTION_ENTRY();
585
586 acpi_ex_trace_point(type, begin, aml, pathname);
587
588#ifdef ACPI_USE_SYSTEM_TRACER
589 acpi_os_trace_point(type, begin, aml, pathname);
590#endif
591}
592
593ACPI_EXPORT_SYMBOL(acpi_trace_point)
594#endif
595#ifdef ACPI_APPLICATION
596/*******************************************************************************
597 *
598 * FUNCTION: acpi_log_error
599 *
600 * PARAMETERS: format - Printf format field
601 * ... - Optional printf arguments
602 *
603 * RETURN: None
604 *
605 * DESCRIPTION: Print error message to the console, used by applications.
606 *
607 ******************************************************************************/
608void ACPI_INTERNAL_VAR_XFACE acpi_log_error(const char *format, ...)
609{
610 va_list args;
611
612 va_start(args, format);
613 (void)acpi_ut_file_vprintf(ACPI_FILE_ERR, format, args);
614 va_end(args);
615}
616
617ACPI_EXPORT_SYMBOL(acpi_log_error)
618#endif