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1/******************************************************************************
2 *
3 * Module Name: utdebug - Debug print routines
4 *
5 *****************************************************************************/
6
7/*
8 * Copyright (C) 2000 - 2011, 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
47#define _COMPONENT ACPI_UTILITIES
48ACPI_MODULE_NAME("utdebug")
49#ifdef ACPI_DEBUG_OUTPUT
50static acpi_thread_id acpi_gbl_prev_thread_id;
51static char *acpi_gbl_fn_entry_str = "----Entry";
52static char *acpi_gbl_fn_exit_str = "----Exit-";
53
54/* Local prototypes */
55
56static const char *acpi_ut_trim_function_name(const char *function_name);
57
58/*******************************************************************************
59 *
60 * FUNCTION: acpi_ut_init_stack_ptr_trace
61 *
62 * PARAMETERS: None
63 *
64 * RETURN: None
65 *
66 * DESCRIPTION: Save the current CPU stack pointer at subsystem startup
67 *
68 ******************************************************************************/
69
70void acpi_ut_init_stack_ptr_trace(void)
71{
72 acpi_size current_sp;
73
74 acpi_gbl_entry_stack_pointer = ¤t_sp;
75}
76
77/*******************************************************************************
78 *
79 * FUNCTION: acpi_ut_track_stack_ptr
80 *
81 * PARAMETERS: None
82 *
83 * RETURN: None
84 *
85 * DESCRIPTION: Save the current CPU stack pointer
86 *
87 ******************************************************************************/
88
89void acpi_ut_track_stack_ptr(void)
90{
91 acpi_size current_sp;
92
93 if (¤t_sp < acpi_gbl_lowest_stack_pointer) {
94 acpi_gbl_lowest_stack_pointer = ¤t_sp;
95 }
96
97 if (acpi_gbl_nesting_level > acpi_gbl_deepest_nesting) {
98 acpi_gbl_deepest_nesting = acpi_gbl_nesting_level;
99 }
100}
101
102/*******************************************************************************
103 *
104 * FUNCTION: acpi_ut_trim_function_name
105 *
106 * PARAMETERS: function_name - Ascii string containing a procedure name
107 *
108 * RETURN: Updated pointer to the function name
109 *
110 * DESCRIPTION: Remove the "Acpi" prefix from the function name, if present.
111 * This allows compiler macros such as __func__ to be used
112 * with no change to the debug output.
113 *
114 ******************************************************************************/
115
116static const char *acpi_ut_trim_function_name(const char *function_name)
117{
118
119 /* All Function names are longer than 4 chars, check is safe */
120
121 if (*(ACPI_CAST_PTR(u32, function_name)) == ACPI_PREFIX_MIXED) {
122
123 /* This is the case where the original source has not been modified */
124
125 return (function_name + 4);
126 }
127
128 if (*(ACPI_CAST_PTR(u32, function_name)) == ACPI_PREFIX_LOWER) {
129
130 /* This is the case where the source has been 'linuxized' */
131
132 return (function_name + 5);
133 }
134
135 return (function_name);
136}
137
138/*******************************************************************************
139 *
140 * FUNCTION: acpi_debug_print
141 *
142 * PARAMETERS: requested_debug_level - Requested debug print level
143 * line_number - Caller's line number (for error output)
144 * function_name - Caller's procedure name
145 * module_name - Caller's module name
146 * component_id - Caller's component ID
147 * Format - Printf format field
148 * ... - Optional printf arguments
149 *
150 * RETURN: None
151 *
152 * DESCRIPTION: Print error message with prefix consisting of the module name,
153 * line number, and component ID.
154 *
155 ******************************************************************************/
156
157void ACPI_INTERNAL_VAR_XFACE
158acpi_debug_print(u32 requested_debug_level,
159 u32 line_number,
160 const char *function_name,
161 const char *module_name,
162 u32 component_id, const char *format, ...)
163{
164 acpi_thread_id thread_id;
165 va_list args;
166
167 /*
168 * Stay silent if the debug level or component ID is disabled
169 */
170 if (!(requested_debug_level & acpi_dbg_level) ||
171 !(component_id & acpi_dbg_layer)) {
172 return;
173 }
174
175 /*
176 * Thread tracking and context switch notification
177 */
178 thread_id = acpi_os_get_thread_id();
179 if (thread_id != acpi_gbl_prev_thread_id) {
180 if (ACPI_LV_THREADS & acpi_dbg_level) {
181 acpi_os_printf
182 ("\n**** Context Switch from TID %u to TID %u ****\n\n",
183 (u32)acpi_gbl_prev_thread_id, (u32)thread_id);
184 }
185
186 acpi_gbl_prev_thread_id = thread_id;
187 }
188
189 /*
190 * Display the module name, current line number, thread ID (if requested),
191 * current procedure nesting level, and the current procedure name
192 */
193 acpi_os_printf("%8s-%04ld ", module_name, line_number);
194
195 if (ACPI_LV_THREADS & acpi_dbg_level) {
196 acpi_os_printf("[%u] ", (u32)thread_id);
197 }
198
199 acpi_os_printf("[%02ld] %-22.22s: ",
200 acpi_gbl_nesting_level,
201 acpi_ut_trim_function_name(function_name));
202
203 va_start(args, format);
204 acpi_os_vprintf(format, args);
205 va_end(args);
206}
207
208ACPI_EXPORT_SYMBOL(acpi_debug_print)
209
210/*******************************************************************************
211 *
212 * FUNCTION: acpi_debug_print_raw
213 *
214 * PARAMETERS: requested_debug_level - Requested debug print level
215 * line_number - Caller's line number
216 * function_name - Caller's procedure name
217 * module_name - Caller's module name
218 * component_id - Caller's component ID
219 * Format - Printf format field
220 * ... - Optional printf arguments
221 *
222 * RETURN: None
223 *
224 * DESCRIPTION: Print message with no headers. Has same interface as
225 * debug_print so that the same macros can be used.
226 *
227 ******************************************************************************/
228void ACPI_INTERNAL_VAR_XFACE
229acpi_debug_print_raw(u32 requested_debug_level,
230 u32 line_number,
231 const char *function_name,
232 const char *module_name,
233 u32 component_id, const char *format, ...)
234{
235 va_list args;
236
237 if (!(requested_debug_level & acpi_dbg_level) ||
238 !(component_id & acpi_dbg_layer)) {
239 return;
240 }
241
242 va_start(args, format);
243 acpi_os_vprintf(format, args);
244 va_end(args);
245}
246
247ACPI_EXPORT_SYMBOL(acpi_debug_print_raw)
248
249/*******************************************************************************
250 *
251 * FUNCTION: acpi_ut_trace
252 *
253 * PARAMETERS: line_number - Caller's line number
254 * function_name - Caller's procedure name
255 * module_name - Caller's module name
256 * component_id - Caller's component ID
257 *
258 * RETURN: None
259 *
260 * DESCRIPTION: Function entry trace. Prints only if TRACE_FUNCTIONS bit is
261 * set in debug_level
262 *
263 ******************************************************************************/
264void
265acpi_ut_trace(u32 line_number,
266 const char *function_name,
267 const char *module_name, u32 component_id)
268{
269
270 acpi_gbl_nesting_level++;
271 acpi_ut_track_stack_ptr();
272
273 acpi_debug_print(ACPI_LV_FUNCTIONS,
274 line_number, function_name, module_name, component_id,
275 "%s\n", acpi_gbl_fn_entry_str);
276}
277
278ACPI_EXPORT_SYMBOL(acpi_ut_trace)
279
280/*******************************************************************************
281 *
282 * FUNCTION: acpi_ut_trace_ptr
283 *
284 * PARAMETERS: line_number - Caller's line number
285 * function_name - Caller's procedure name
286 * module_name - Caller's module name
287 * component_id - Caller's component ID
288 * Pointer - Pointer to display
289 *
290 * RETURN: None
291 *
292 * DESCRIPTION: Function entry trace. Prints only if TRACE_FUNCTIONS bit is
293 * set in debug_level
294 *
295 ******************************************************************************/
296void
297acpi_ut_trace_ptr(u32 line_number,
298 const char *function_name,
299 const char *module_name, u32 component_id, void *pointer)
300{
301 acpi_gbl_nesting_level++;
302 acpi_ut_track_stack_ptr();
303
304 acpi_debug_print(ACPI_LV_FUNCTIONS,
305 line_number, function_name, module_name, component_id,
306 "%s %p\n", acpi_gbl_fn_entry_str, pointer);
307}
308
309/*******************************************************************************
310 *
311 * FUNCTION: acpi_ut_trace_str
312 *
313 * PARAMETERS: line_number - Caller's line number
314 * function_name - Caller's procedure name
315 * module_name - Caller's module name
316 * component_id - Caller's component ID
317 * String - Additional string to display
318 *
319 * RETURN: None
320 *
321 * DESCRIPTION: Function entry trace. Prints only if TRACE_FUNCTIONS bit is
322 * set in debug_level
323 *
324 ******************************************************************************/
325
326void
327acpi_ut_trace_str(u32 line_number,
328 const char *function_name,
329 const char *module_name, u32 component_id, char *string)
330{
331
332 acpi_gbl_nesting_level++;
333 acpi_ut_track_stack_ptr();
334
335 acpi_debug_print(ACPI_LV_FUNCTIONS,
336 line_number, function_name, module_name, component_id,
337 "%s %s\n", acpi_gbl_fn_entry_str, string);
338}
339
340/*******************************************************************************
341 *
342 * FUNCTION: acpi_ut_trace_u32
343 *
344 * PARAMETERS: line_number - Caller's line number
345 * function_name - Caller's procedure name
346 * module_name - Caller's module name
347 * component_id - Caller's component ID
348 * Integer - Integer to display
349 *
350 * RETURN: None
351 *
352 * DESCRIPTION: Function entry trace. Prints only if TRACE_FUNCTIONS bit is
353 * set in debug_level
354 *
355 ******************************************************************************/
356
357void
358acpi_ut_trace_u32(u32 line_number,
359 const char *function_name,
360 const char *module_name, u32 component_id, u32 integer)
361{
362
363 acpi_gbl_nesting_level++;
364 acpi_ut_track_stack_ptr();
365
366 acpi_debug_print(ACPI_LV_FUNCTIONS,
367 line_number, function_name, module_name, component_id,
368 "%s %08X\n", acpi_gbl_fn_entry_str, integer);
369}
370
371/*******************************************************************************
372 *
373 * FUNCTION: acpi_ut_exit
374 *
375 * PARAMETERS: line_number - Caller's line number
376 * function_name - Caller's procedure name
377 * module_name - Caller's module name
378 * component_id - Caller's component ID
379 *
380 * RETURN: None
381 *
382 * DESCRIPTION: Function exit trace. Prints only if TRACE_FUNCTIONS bit is
383 * set in debug_level
384 *
385 ******************************************************************************/
386
387void
388acpi_ut_exit(u32 line_number,
389 const char *function_name,
390 const char *module_name, u32 component_id)
391{
392
393 acpi_debug_print(ACPI_LV_FUNCTIONS,
394 line_number, function_name, module_name, component_id,
395 "%s\n", acpi_gbl_fn_exit_str);
396
397 acpi_gbl_nesting_level--;
398}
399
400ACPI_EXPORT_SYMBOL(acpi_ut_exit)
401
402/*******************************************************************************
403 *
404 * FUNCTION: acpi_ut_status_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 * Status - Exit status code
411 *
412 * RETURN: None
413 *
414 * DESCRIPTION: Function exit trace. Prints only if TRACE_FUNCTIONS bit is
415 * set in debug_level. Prints exit status also.
416 *
417 ******************************************************************************/
418void
419acpi_ut_status_exit(u32 line_number,
420 const char *function_name,
421 const char *module_name,
422 u32 component_id, acpi_status status)
423{
424
425 if (ACPI_SUCCESS(status)) {
426 acpi_debug_print(ACPI_LV_FUNCTIONS,
427 line_number, function_name, module_name,
428 component_id, "%s %s\n", acpi_gbl_fn_exit_str,
429 acpi_format_exception(status));
430 } else {
431 acpi_debug_print(ACPI_LV_FUNCTIONS,
432 line_number, function_name, module_name,
433 component_id, "%s ****Exception****: %s\n",
434 acpi_gbl_fn_exit_str,
435 acpi_format_exception(status));
436 }
437
438 acpi_gbl_nesting_level--;
439}
440
441ACPI_EXPORT_SYMBOL(acpi_ut_status_exit)
442
443/*******************************************************************************
444 *
445 * FUNCTION: acpi_ut_value_exit
446 *
447 * PARAMETERS: line_number - Caller's line number
448 * function_name - Caller's procedure name
449 * module_name - Caller's module name
450 * component_id - Caller's component ID
451 * Value - Value to be printed with exit msg
452 *
453 * RETURN: None
454 *
455 * DESCRIPTION: Function exit trace. Prints only if TRACE_FUNCTIONS bit is
456 * set in debug_level. Prints exit value also.
457 *
458 ******************************************************************************/
459void
460acpi_ut_value_exit(u32 line_number,
461 const char *function_name,
462 const char *module_name, u32 component_id, u64 value)
463{
464
465 acpi_debug_print(ACPI_LV_FUNCTIONS,
466 line_number, function_name, module_name, component_id,
467 "%s %8.8X%8.8X\n", acpi_gbl_fn_exit_str,
468 ACPI_FORMAT_UINT64(value));
469
470 acpi_gbl_nesting_level--;
471}
472
473ACPI_EXPORT_SYMBOL(acpi_ut_value_exit)
474
475/*******************************************************************************
476 *
477 * FUNCTION: acpi_ut_ptr_exit
478 *
479 * PARAMETERS: line_number - Caller's line number
480 * function_name - Caller's procedure name
481 * module_name - Caller's module name
482 * component_id - Caller's component ID
483 * Ptr - Pointer to display
484 *
485 * RETURN: None
486 *
487 * DESCRIPTION: Function exit trace. Prints only if TRACE_FUNCTIONS bit is
488 * set in debug_level. Prints exit value also.
489 *
490 ******************************************************************************/
491void
492acpi_ut_ptr_exit(u32 line_number,
493 const char *function_name,
494 const char *module_name, u32 component_id, u8 *ptr)
495{
496
497 acpi_debug_print(ACPI_LV_FUNCTIONS,
498 line_number, function_name, module_name, component_id,
499 "%s %p\n", acpi_gbl_fn_exit_str, ptr);
500
501 acpi_gbl_nesting_level--;
502}
503
504#endif
505
506/*******************************************************************************
507 *
508 * FUNCTION: acpi_ut_dump_buffer
509 *
510 * PARAMETERS: Buffer - Buffer to dump
511 * Count - Amount to dump, in bytes
512 * Display - BYTE, WORD, DWORD, or QWORD display
513 * component_iD - Caller's component ID
514 *
515 * RETURN: None
516 *
517 * DESCRIPTION: Generic dump buffer in both hex and ascii.
518 *
519 ******************************************************************************/
520
521void acpi_ut_dump_buffer2(u8 * buffer, u32 count, u32 display)
522{
523 u32 i = 0;
524 u32 j;
525 u32 temp32;
526 u8 buf_char;
527
528 if (!buffer) {
529 acpi_os_printf("Null Buffer Pointer in DumpBuffer!\n");
530 return;
531 }
532
533 if ((count < 4) || (count & 0x01)) {
534 display = DB_BYTE_DISPLAY;
535 }
536
537 /* Nasty little dump buffer routine! */
538
539 while (i < count) {
540
541 /* Print current offset */
542
543 acpi_os_printf("%6.4X: ", i);
544
545 /* Print 16 hex chars */
546
547 for (j = 0; j < 16;) {
548 if (i + j >= count) {
549
550 /* Dump fill spaces */
551
552 acpi_os_printf("%*s", ((display * 2) + 1), " ");
553 j += display;
554 continue;
555 }
556
557 switch (display) {
558 case DB_BYTE_DISPLAY:
559 default: /* Default is BYTE display */
560
561 acpi_os_printf("%02X ",
562 buffer[(acpi_size) i + j]);
563 break;
564
565 case DB_WORD_DISPLAY:
566
567 ACPI_MOVE_16_TO_32(&temp32,
568 &buffer[(acpi_size) i + j]);
569 acpi_os_printf("%04X ", temp32);
570 break;
571
572 case DB_DWORD_DISPLAY:
573
574 ACPI_MOVE_32_TO_32(&temp32,
575 &buffer[(acpi_size) i + j]);
576 acpi_os_printf("%08X ", temp32);
577 break;
578
579 case DB_QWORD_DISPLAY:
580
581 ACPI_MOVE_32_TO_32(&temp32,
582 &buffer[(acpi_size) i + j]);
583 acpi_os_printf("%08X", temp32);
584
585 ACPI_MOVE_32_TO_32(&temp32,
586 &buffer[(acpi_size) i + j +
587 4]);
588 acpi_os_printf("%08X ", temp32);
589 break;
590 }
591
592 j += display;
593 }
594
595 /*
596 * Print the ASCII equivalent characters but watch out for the bad
597 * unprintable ones (printable chars are 0x20 through 0x7E)
598 */
599 acpi_os_printf(" ");
600 for (j = 0; j < 16; j++) {
601 if (i + j >= count) {
602 acpi_os_printf("\n");
603 return;
604 }
605
606 buf_char = buffer[(acpi_size) i + j];
607 if (ACPI_IS_PRINT(buf_char)) {
608 acpi_os_printf("%c", buf_char);
609 } else {
610 acpi_os_printf(".");
611 }
612 }
613
614 /* Done with that line. */
615
616 acpi_os_printf("\n");
617 i += 16;
618 }
619
620 return;
621}
622
623/*******************************************************************************
624 *
625 * FUNCTION: acpi_ut_dump_buffer
626 *
627 * PARAMETERS: Buffer - Buffer to dump
628 * Count - Amount to dump, in bytes
629 * Display - BYTE, WORD, DWORD, or QWORD display
630 * component_iD - Caller's component ID
631 *
632 * RETURN: None
633 *
634 * DESCRIPTION: Generic dump buffer in both hex and ascii.
635 *
636 ******************************************************************************/
637
638void acpi_ut_dump_buffer(u8 * buffer, u32 count, u32 display, u32 component_id)
639{
640
641 /* Only dump the buffer if tracing is enabled */
642
643 if (!((ACPI_LV_TABLES & acpi_dbg_level) &&
644 (component_id & acpi_dbg_layer))) {
645 return;
646 }
647
648 acpi_ut_dump_buffer2(buffer, count, display);
649}
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