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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
1/******************************************************************************
2 *
3 * Module Name: utdebug - Debug print/trace routines
4 *
5 *****************************************************************************/
6
7/*
8 * Copyright (C) 2000 - 2014, 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
49#define _COMPONENT ACPI_UTILITIES
50ACPI_MODULE_NAME("utdebug")
51
52#ifdef ACPI_DEBUG_OUTPUT
53static acpi_thread_id acpi_gbl_prev_thread_id = (acpi_thread_id) 0xFFFFFFFF;
54static char *acpi_gbl_fn_entry_str = "----Entry";
55static char *acpi_gbl_fn_exit_str = "----Exit-";
56
57/* Local prototypes */
58
59static const char *acpi_ut_trim_function_name(const char *function_name);
60
61/*******************************************************************************
62 *
63 * FUNCTION: acpi_ut_init_stack_ptr_trace
64 *
65 * PARAMETERS: None
66 *
67 * RETURN: None
68 *
69 * DESCRIPTION: Save the current CPU stack pointer at subsystem startup
70 *
71 ******************************************************************************/
72
73void acpi_ut_init_stack_ptr_trace(void)
74{
75 acpi_size current_sp;
76
77 acpi_gbl_entry_stack_pointer = ¤t_sp;
78}
79
80/*******************************************************************************
81 *
82 * FUNCTION: acpi_ut_track_stack_ptr
83 *
84 * PARAMETERS: None
85 *
86 * RETURN: None
87 *
88 * DESCRIPTION: Save the current CPU stack pointer
89 *
90 ******************************************************************************/
91
92void acpi_ut_track_stack_ptr(void)
93{
94 acpi_size current_sp;
95
96 if (¤t_sp < acpi_gbl_lowest_stack_pointer) {
97 acpi_gbl_lowest_stack_pointer = ¤t_sp;
98 }
99
100 if (acpi_gbl_nesting_level > acpi_gbl_deepest_nesting) {
101 acpi_gbl_deepest_nesting = acpi_gbl_nesting_level;
102 }
103}
104
105/*******************************************************************************
106 *
107 * FUNCTION: acpi_ut_trim_function_name
108 *
109 * PARAMETERS: function_name - Ascii string containing a procedure name
110 *
111 * RETURN: Updated pointer to the function name
112 *
113 * DESCRIPTION: Remove the "Acpi" prefix from the function name, if present.
114 * This allows compiler macros such as __FUNCTION__ to be used
115 * with no change to the debug output.
116 *
117 ******************************************************************************/
118
119static const char *acpi_ut_trim_function_name(const char *function_name)
120{
121
122 /* All Function names are longer than 4 chars, check is safe */
123
124 if (*(ACPI_CAST_PTR(u32, function_name)) == ACPI_PREFIX_MIXED) {
125
126 /* This is the case where the original source has not been modified */
127
128 return (function_name + 4);
129 }
130
131 if (*(ACPI_CAST_PTR(u32, function_name)) == ACPI_PREFIX_LOWER) {
132
133 /* This is the case where the source has been 'linuxized' */
134
135 return (function_name + 5);
136 }
137
138 return (function_name);
139}
140
141/*******************************************************************************
142 *
143 * FUNCTION: acpi_debug_print
144 *
145 * PARAMETERS: requested_debug_level - Requested debug print level
146 * line_number - Caller's line number (for error output)
147 * function_name - Caller's procedure name
148 * module_name - Caller's module name
149 * component_id - Caller's component ID
150 * format - Printf format field
151 * ... - Optional printf arguments
152 *
153 * RETURN: None
154 *
155 * DESCRIPTION: Print error message with prefix consisting of the module name,
156 * line number, and component ID.
157 *
158 ******************************************************************************/
159
160void ACPI_INTERNAL_VAR_XFACE
161acpi_debug_print(u32 requested_debug_level,
162 u32 line_number,
163 const char *function_name,
164 const char *module_name,
165 u32 component_id, const char *format, ...)
166{
167 acpi_thread_id thread_id;
168 va_list args;
169
170 /* Check if debug output enabled */
171
172 if (!ACPI_IS_DEBUG_ENABLED(requested_debug_level, component_id)) {
173 return;
174 }
175
176 /*
177 * Thread tracking and context switch notification
178 */
179 thread_id = acpi_os_get_thread_id();
180 if (thread_id != acpi_gbl_prev_thread_id) {
181 if (ACPI_LV_THREADS & acpi_dbg_level) {
182 acpi_os_printf
183 ("\n**** Context Switch from TID %u to TID %u ****\n\n",
184 (u32)acpi_gbl_prev_thread_id, (u32)thread_id);
185 }
186
187 acpi_gbl_prev_thread_id = thread_id;
188 acpi_gbl_nesting_level = 0;
189 }
190
191 /*
192 * Display the module name, current line number, thread ID (if requested),
193 * current procedure nesting level, and the current procedure name
194 */
195 acpi_os_printf("%9s-%04ld ", module_name, line_number);
196
197#ifdef ACPI_APPLICATION
198 /*
199 * For acpi_exec/iASL only, emit the thread ID and nesting level.
200 * Note: nesting level is really only useful during a single-thread
201 * execution. Otherwise, multiple threads will keep resetting the
202 * level.
203 */
204 if (ACPI_LV_THREADS & acpi_dbg_level) {
205 acpi_os_printf("[%u] ", (u32)thread_id);
206 }
207
208 acpi_os_printf("[%02ld] ", acpi_gbl_nesting_level);
209#endif
210
211 acpi_os_printf("%-22.22s: ", acpi_ut_trim_function_name(function_name));
212
213 va_start(args, format);
214 acpi_os_vprintf(format, args);
215 va_end(args);
216}
217
218ACPI_EXPORT_SYMBOL(acpi_debug_print)
219
220/*******************************************************************************
221 *
222 * FUNCTION: acpi_debug_print_raw
223 *
224 * PARAMETERS: requested_debug_level - Requested debug print level
225 * line_number - Caller's line number
226 * function_name - Caller's procedure name
227 * module_name - Caller's module name
228 * component_id - Caller's component ID
229 * format - Printf format field
230 * ... - Optional printf arguments
231 *
232 * RETURN: None
233 *
234 * DESCRIPTION: Print message with no headers. Has same interface as
235 * debug_print so that the same macros can be used.
236 *
237 ******************************************************************************/
238void ACPI_INTERNAL_VAR_XFACE
239acpi_debug_print_raw(u32 requested_debug_level,
240 u32 line_number,
241 const char *function_name,
242 const char *module_name,
243 u32 component_id, const char *format, ...)
244{
245 va_list args;
246
247 /* Check if debug output enabled */
248
249 if (!ACPI_IS_DEBUG_ENABLED(requested_debug_level, component_id)) {
250 return;
251 }
252
253 va_start(args, format);
254 acpi_os_vprintf(format, args);
255 va_end(args);
256}
257
258ACPI_EXPORT_SYMBOL(acpi_debug_print_raw)
259
260/*******************************************************************************
261 *
262 * FUNCTION: acpi_ut_trace
263 *
264 * PARAMETERS: line_number - Caller's line number
265 * function_name - Caller's procedure name
266 * module_name - Caller's module name
267 * component_id - Caller's component ID
268 *
269 * RETURN: None
270 *
271 * DESCRIPTION: Function entry trace. Prints only if TRACE_FUNCTIONS bit is
272 * set in debug_level
273 *
274 ******************************************************************************/
275void
276acpi_ut_trace(u32 line_number,
277 const char *function_name,
278 const char *module_name, u32 component_id)
279{
280
281 acpi_gbl_nesting_level++;
282 acpi_ut_track_stack_ptr();
283
284 /* Check if enabled up-front for performance */
285
286 if (ACPI_IS_DEBUG_ENABLED(ACPI_LV_FUNCTIONS, component_id)) {
287 acpi_debug_print(ACPI_LV_FUNCTIONS,
288 line_number, function_name, module_name,
289 component_id, "%s\n", acpi_gbl_fn_entry_str);
290 }
291}
292
293ACPI_EXPORT_SYMBOL(acpi_ut_trace)
294
295/*******************************************************************************
296 *
297 * FUNCTION: acpi_ut_trace_ptr
298 *
299 * PARAMETERS: line_number - Caller's line number
300 * function_name - Caller's procedure name
301 * module_name - Caller's module name
302 * component_id - Caller's component ID
303 * pointer - Pointer to display
304 *
305 * RETURN: None
306 *
307 * DESCRIPTION: Function entry trace. Prints only if TRACE_FUNCTIONS bit is
308 * set in debug_level
309 *
310 ******************************************************************************/
311void
312acpi_ut_trace_ptr(u32 line_number,
313 const char *function_name,
314 const char *module_name, u32 component_id, void *pointer)
315{
316
317 acpi_gbl_nesting_level++;
318 acpi_ut_track_stack_ptr();
319
320 /* Check if enabled up-front for performance */
321
322 if (ACPI_IS_DEBUG_ENABLED(ACPI_LV_FUNCTIONS, component_id)) {
323 acpi_debug_print(ACPI_LV_FUNCTIONS,
324 line_number, function_name, module_name,
325 component_id, "%s %p\n", acpi_gbl_fn_entry_str,
326 pointer);
327 }
328}
329
330/*******************************************************************************
331 *
332 * FUNCTION: acpi_ut_trace_str
333 *
334 * PARAMETERS: line_number - Caller's line number
335 * function_name - Caller's procedure name
336 * module_name - Caller's module name
337 * component_id - Caller's component ID
338 * string - Additional string to display
339 *
340 * RETURN: None
341 *
342 * DESCRIPTION: Function entry trace. Prints only if TRACE_FUNCTIONS bit is
343 * set in debug_level
344 *
345 ******************************************************************************/
346
347void
348acpi_ut_trace_str(u32 line_number,
349 const char *function_name,
350 const char *module_name, u32 component_id, char *string)
351{
352
353 acpi_gbl_nesting_level++;
354 acpi_ut_track_stack_ptr();
355
356 /* Check if enabled up-front for performance */
357
358 if (ACPI_IS_DEBUG_ENABLED(ACPI_LV_FUNCTIONS, component_id)) {
359 acpi_debug_print(ACPI_LV_FUNCTIONS,
360 line_number, function_name, module_name,
361 component_id, "%s %s\n", acpi_gbl_fn_entry_str,
362 string);
363 }
364}
365
366/*******************************************************************************
367 *
368 * FUNCTION: acpi_ut_trace_u32
369 *
370 * PARAMETERS: line_number - Caller's line number
371 * function_name - Caller's procedure name
372 * module_name - Caller's module name
373 * component_id - Caller's component ID
374 * integer - Integer to display
375 *
376 * RETURN: None
377 *
378 * DESCRIPTION: Function entry trace. Prints only if TRACE_FUNCTIONS bit is
379 * set in debug_level
380 *
381 ******************************************************************************/
382
383void
384acpi_ut_trace_u32(u32 line_number,
385 const char *function_name,
386 const char *module_name, u32 component_id, u32 integer)
387{
388
389 acpi_gbl_nesting_level++;
390 acpi_ut_track_stack_ptr();
391
392 /* Check if enabled up-front for performance */
393
394 if (ACPI_IS_DEBUG_ENABLED(ACPI_LV_FUNCTIONS, component_id)) {
395 acpi_debug_print(ACPI_LV_FUNCTIONS,
396 line_number, function_name, module_name,
397 component_id, "%s %08X\n",
398 acpi_gbl_fn_entry_str, integer);
399 }
400}
401
402/*******************************************************************************
403 *
404 * FUNCTION: acpi_ut_exit
405 *
406 * PARAMETERS: line_number - Caller's line number
407 * function_name - Caller's procedure name
408 * module_name - Caller's module name
409 * component_id - Caller's component ID
410 *
411 * RETURN: None
412 *
413 * DESCRIPTION: Function exit trace. Prints only if TRACE_FUNCTIONS bit is
414 * set in debug_level
415 *
416 ******************************************************************************/
417
418void
419acpi_ut_exit(u32 line_number,
420 const char *function_name,
421 const char *module_name, u32 component_id)
422{
423
424 /* Check if enabled up-front for performance */
425
426 if (ACPI_IS_DEBUG_ENABLED(ACPI_LV_FUNCTIONS, component_id)) {
427 acpi_debug_print(ACPI_LV_FUNCTIONS,
428 line_number, function_name, module_name,
429 component_id, "%s\n", acpi_gbl_fn_exit_str);
430 }
431
432 if (acpi_gbl_nesting_level) {
433 acpi_gbl_nesting_level--;
434 }
435}
436
437ACPI_EXPORT_SYMBOL(acpi_ut_exit)
438
439/*******************************************************************************
440 *
441 * FUNCTION: acpi_ut_status_exit
442 *
443 * PARAMETERS: line_number - Caller's line number
444 * function_name - Caller's procedure name
445 * module_name - Caller's module name
446 * component_id - Caller's component ID
447 * status - Exit status code
448 *
449 * RETURN: None
450 *
451 * DESCRIPTION: Function exit trace. Prints only if TRACE_FUNCTIONS bit is
452 * set in debug_level. Prints exit status also.
453 *
454 ******************************************************************************/
455void
456acpi_ut_status_exit(u32 line_number,
457 const char *function_name,
458 const char *module_name,
459 u32 component_id, acpi_status status)
460{
461
462 /* Check if enabled up-front for performance */
463
464 if (ACPI_IS_DEBUG_ENABLED(ACPI_LV_FUNCTIONS, component_id)) {
465 if (ACPI_SUCCESS(status)) {
466 acpi_debug_print(ACPI_LV_FUNCTIONS,
467 line_number, function_name,
468 module_name, component_id, "%s %s\n",
469 acpi_gbl_fn_exit_str,
470 acpi_format_exception(status));
471 } else {
472 acpi_debug_print(ACPI_LV_FUNCTIONS,
473 line_number, function_name,
474 module_name, component_id,
475 "%s ****Exception****: %s\n",
476 acpi_gbl_fn_exit_str,
477 acpi_format_exception(status));
478 }
479 }
480
481 if (acpi_gbl_nesting_level) {
482 acpi_gbl_nesting_level--;
483 }
484}
485
486ACPI_EXPORT_SYMBOL(acpi_ut_status_exit)
487
488/*******************************************************************************
489 *
490 * FUNCTION: acpi_ut_value_exit
491 *
492 * PARAMETERS: line_number - Caller's line number
493 * function_name - Caller's procedure name
494 * module_name - Caller's module name
495 * component_id - Caller's component ID
496 * value - Value to be printed with exit msg
497 *
498 * RETURN: None
499 *
500 * DESCRIPTION: Function exit trace. Prints only if TRACE_FUNCTIONS bit is
501 * set in debug_level. Prints exit value also.
502 *
503 ******************************************************************************/
504void
505acpi_ut_value_exit(u32 line_number,
506 const char *function_name,
507 const char *module_name, u32 component_id, u64 value)
508{
509
510 /* Check if enabled up-front for performance */
511
512 if (ACPI_IS_DEBUG_ENABLED(ACPI_LV_FUNCTIONS, component_id)) {
513 acpi_debug_print(ACPI_LV_FUNCTIONS,
514 line_number, function_name, module_name,
515 component_id, "%s %8.8X%8.8X\n",
516 acpi_gbl_fn_exit_str,
517 ACPI_FORMAT_UINT64(value));
518 }
519
520 if (acpi_gbl_nesting_level) {
521 acpi_gbl_nesting_level--;
522 }
523}
524
525ACPI_EXPORT_SYMBOL(acpi_ut_value_exit)
526
527/*******************************************************************************
528 *
529 * FUNCTION: acpi_ut_ptr_exit
530 *
531 * PARAMETERS: line_number - Caller's line number
532 * function_name - Caller's procedure name
533 * module_name - Caller's module name
534 * component_id - Caller's component ID
535 * ptr - Pointer to display
536 *
537 * RETURN: None
538 *
539 * DESCRIPTION: Function exit trace. Prints only if TRACE_FUNCTIONS bit is
540 * set in debug_level. Prints exit value also.
541 *
542 ******************************************************************************/
543void
544acpi_ut_ptr_exit(u32 line_number,
545 const char *function_name,
546 const char *module_name, u32 component_id, u8 *ptr)
547{
548
549 /* Check if enabled up-front for performance */
550
551 if (ACPI_IS_DEBUG_ENABLED(ACPI_LV_FUNCTIONS, component_id)) {
552 acpi_debug_print(ACPI_LV_FUNCTIONS,
553 line_number, function_name, module_name,
554 component_id, "%s %p\n", acpi_gbl_fn_exit_str,
555 ptr);
556 }
557
558 if (acpi_gbl_nesting_level) {
559 acpi_gbl_nesting_level--;
560 }
561}
562
563#endif