aboutsummaryrefslogtreecommitdiffstats
path: root/src/gallium/auxiliary/util/u_debug.h
blob: 7da7f53da573d4dde72bbea504bead07b1a77ed1 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
/**************************************************************************
 * 
 * Copyright 2008 VMware, Inc.
 * All Rights Reserved.
 * 
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the
 * "Software"), to deal in the Software without restriction, including
 * without limitation the rights to use, copy, modify, merge, publish,
 * distribute, sub license, and/or sell copies of the Software, and to
 * permit persons to whom the Software is furnished to do so, subject to
 * the following conditions:
 * 
 * The above copyright notice and this permission notice (including the
 * next paragraph) shall be included in all copies or substantial portions
 * of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
 * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 * 
 **************************************************************************/

/**
 * @file
 * Cross-platform debugging helpers.
 * 
 * For now it just has assert and printf replacements, but it might be extended 
 * with stack trace reports and more advanced logging in the near future. 
 * 
 * @author Jose Fonseca <jfonseca@vmware.com>
 */

#ifndef U_DEBUG_H_
#define U_DEBUG_H_


#if defined(PIPE_OS_HAIKU)
/* Haiku provides debug_printf in libroot with OS.h */
#include <OS.h>
#endif

#include "os/os_misc.h"

#include "pipe/p_format.h"
#include "pipe/p_defines.h"


#ifdef	__cplusplus
extern "C" {
#endif


#if defined(__GNUC__)
#define _util_printf_format(fmt, list) __attribute__ ((format (printf, fmt, list)))
#else
#define _util_printf_format(fmt, list)
#endif

void _debug_vprintf(const char *format, va_list ap);
   

static inline void
_debug_printf(const char *format, ...)
{
   va_list ap;
   va_start(ap, format);
   _debug_vprintf(format, ap);
   va_end(ap);
}


/**
 * Print debug messages.
 *
 * The actual channel used to output debug message is platform specific. To
 * avoid misformating or truncation, follow these rules of thumb:
 * - output whole lines
 * - avoid outputing large strings (512 bytes is the current maximum length
 * that is guaranteed to be printed in all platforms)
 */
#if !defined(PIPE_OS_HAIKU)
static inline void
debug_printf(const char *format, ...) _util_printf_format(1,2);

static inline void
debug_printf(const char *format, ...)
{
#ifdef DEBUG
   va_list ap;
   va_start(ap, format);
   _debug_vprintf(format, ap);
   va_end(ap);
#else
   (void) format; /* silence warning */
#endif
}
#endif


/*
 * ... isn't portable so we need to pass arguments in parentheses.
 *
 * usage:
 *    debug_printf_once(("answer: %i\n", 42));
 */
#define debug_printf_once(args) \
   do { \
      static boolean once = TRUE; \
      if (once) { \
         once = FALSE; \
         debug_printf args; \
      } \
   } while (0)


#ifdef DEBUG
#define debug_vprintf(_format, _ap) _debug_vprintf(_format, _ap)
#else
#define debug_vprintf(_format, _ap) ((void)0)
#endif


#ifdef DEBUG
/**
 * Dump a blob in hex to the same place that debug_printf sends its
 * messages.
 */
void debug_print_blob( const char *name, const void *blob, unsigned size );

/* Print a message along with a prettified format string
 */
void debug_print_format(const char *msg, unsigned fmt );
#else
#define debug_print_blob(_name, _blob, _size) ((void)0)
#define debug_print_format(_msg, _fmt) ((void)0)
#endif


/**
 * Disable interactive error message boxes.
 *
 * Should be called as soon as possible for effectiveness.
 */
void
debug_disable_error_message_boxes(void);


/**
 * Hard-coded breakpoint.
 */
#ifdef DEBUG
#define debug_break() os_break()
#else /* !DEBUG */
#define debug_break() ((void)0)
#endif /* !DEBUG */


long
debug_get_num_option(const char *name, long dfault);

#ifdef _MSC_VER
__declspec(noreturn)
#endif
void _debug_assert_fail(const char *expr, 
                        const char *file, 
                        unsigned line, 
                        const char *function)
#ifdef __GNUC__
   __attribute__((__noreturn__))
#endif
;


/** 
 * Assert macro
 * 
 * Do not expect that the assert call terminates -- errors must be handled 
 * regardless of assert behavior.
 *
 * For non debug builds the assert macro will expand to a no-op, so do not
 * call functions with side effects in the assert expression.
 */
#ifdef DEBUG
#define debug_assert(expr) ((expr) ? (void)0 : _debug_assert_fail(#expr, __FILE__, __LINE__, __FUNCTION__))
#else
#define debug_assert(expr) (void)(0 && (expr))
#endif


/** Override standard assert macro */
#ifdef assert
#undef assert
#endif
#define assert(expr) debug_assert(expr)


/**
 * Output the current function name.
 */
#ifdef DEBUG
#define debug_checkpoint() \
   _debug_printf("%s\n", __FUNCTION__)
#else
#define debug_checkpoint() \
   ((void)0) 
#endif


/**
 * Output the full source code position.
 */
#ifdef DEBUG
#define debug_checkpoint_full() \
   _debug_printf("%s:%u:%s\n", __FILE__, __LINE__, __FUNCTION__)
#else
#define debug_checkpoint_full() \
   ((void)0) 
#endif


/**
 * Output a warning message. Muted on release version.
 */
#ifdef DEBUG
#define debug_warning(__msg) \
   _debug_printf("%s:%u:%s: warning: %s\n", __FILE__, __LINE__, __FUNCTION__, __msg)
#else
#define debug_warning(__msg) \
   ((void)0) 
#endif


/**
 * Emit a warning message, but only once.
 */
#ifdef DEBUG
#define debug_warn_once(__msg) \
   do { \
      static bool warned = FALSE; \
      if (!warned) { \
         _debug_printf("%s:%u:%s: one time warning: %s\n", \
                       __FILE__, __LINE__, __FUNCTION__, __msg); \
         warned = TRUE; \
      } \
   } while (0)
#else
#define debug_warn_once(__msg) \
   ((void)0) 
#endif


/**
 * Output an error message. Not muted on release version.
 */
#ifdef DEBUG
#define debug_error(__msg) \
   _debug_printf("%s:%u:%s: error: %s\n", __FILE__, __LINE__, __FUNCTION__, __msg) 
#else
#define debug_error(__msg) \
   _debug_printf("error: %s\n", __msg)
#endif

/**
 * Output a debug log message to the debug info callback.
 */
#define pipe_debug_message(cb, type, fmt, ...) do { \
   static unsigned id = 0; \
   if ((cb) && (cb)->debug_message) { \
      _pipe_debug_message(cb, &id, \
                          PIPE_DEBUG_TYPE_ ## type, \
                          fmt, ##__VA_ARGS__); \
   } \
} while (0)

struct pipe_debug_callback;

void
_pipe_debug_message(
   struct pipe_debug_callback *cb,
   unsigned *id,
   enum pipe_debug_type type,
   const char *fmt, ...) _util_printf_format(4, 5);


/**
 * Used by debug_dump_enum and debug_dump_flags to describe symbols.
 */
struct debug_named_value
{
   const char *name;
   uint64_t value;
   const char *desc;
};


/**
 * Some C pre-processor magic to simplify creating named values.
 * 
 * Example:
 * @code
 * static const debug_named_value my_names[] = {
 *    DEBUG_NAMED_VALUE(MY_ENUM_VALUE_X),
 *    DEBUG_NAMED_VALUE(MY_ENUM_VALUE_Y),
 *    DEBUG_NAMED_VALUE(MY_ENUM_VALUE_Z),
 *    DEBUG_NAMED_VALUE_END
 * };
 * 
 *    ...
 *    debug_printf("%s = %s\n", 
 *                 name,
 *                 debug_dump_enum(my_names, my_value));
 *    ...
 * @endcode
 */
#define DEBUG_NAMED_VALUE(__symbol) {#__symbol, (unsigned long)__symbol, NULL}
#define DEBUG_NAMED_VALUE_WITH_DESCRIPTION(__symbol, __desc) {#__symbol, (unsigned long)__symbol, __desc}
#define DEBUG_NAMED_VALUE_END {NULL, 0, NULL}


/**
 * Convert a enum value to a string.
 */
const char *
debug_dump_enum(const struct debug_named_value *names, 
                unsigned long value);

const char *
debug_dump_enum_noprefix(const struct debug_named_value *names, 
                         const char *prefix,
                         unsigned long value);


/**
 * Convert binary flags value to a string.
 */
const char *
debug_dump_flags(const struct debug_named_value *names, 
                 unsigned long value);


/**
 * Function enter exit loggers
 */
#ifdef DEBUG
int debug_funclog_enter(const char* f, const int line, const char* file);
void debug_funclog_exit(const char* f, const int line, const char* file);
void debug_funclog_enter_exit(const char* f, const int line, const char* file);

#define DEBUG_FUNCLOG_ENTER() \
   int __debug_decleration_work_around = \
      debug_funclog_enter(__FUNCTION__, __LINE__, __FILE__)
#define DEBUG_FUNCLOG_EXIT() \
   do { \
      (void)__debug_decleration_work_around; \
      debug_funclog_exit(__FUNCTION__, __LINE__, __FILE__); \
      return; \
   } while(0)
#define DEBUG_FUNCLOG_EXIT_RET(ret) \
   do { \
      (void)__debug_decleration_work_around; \
      debug_funclog_exit(__FUNCTION__, __LINE__, __FILE__); \
      return ret; \
   } while(0)
#define DEBUG_FUNCLOG_ENTER_EXIT() \
   debug_funclog_enter_exit(__FUNCTION__, __LINE__, __FILE__)

#else
#define DEBUG_FUNCLOG_ENTER() \
   int __debug_decleration_work_around
#define DEBUG_FUNCLOG_EXIT() \
   do { (void)__debug_decleration_work_around; return; } while(0)
#define DEBUG_FUNCLOG_EXIT_RET(ret) \
   do { (void)__debug_decleration_work_around; return ret; } while(0)
#define DEBUG_FUNCLOG_ENTER_EXIT()
#endif


/**
 * Get option.
 * 
 * It is an alias for getenv on Linux. 
 * 
 * On Windows it reads C:\gallium.cfg, which is a text file with CR+LF line 
 * endings with one option per line as
 *  
 *   NAME=value
 * 
 * This file must be terminated with an extra empty line.
 */
const char *
debug_get_option(const char *name, const char *dfault);

boolean
debug_get_bool_option(const char *name, boolean dfault);

long
debug_get_num_option(const char *name, long dfault);

uint64_t
debug_get_flags_option(const char *name, 
                       const struct debug_named_value *flags,
                       uint64_t dfault);

#define DEBUG_GET_ONCE_OPTION(suffix, name, dfault) \
static const char * \
debug_get_option_ ## suffix (void) \
{ \
   static boolean first = TRUE; \
   static const char * value; \
   if (first) { \
      first = FALSE; \
      value = debug_get_option(name, dfault); \
   } \
   return value; \
}

#define DEBUG_GET_ONCE_BOOL_OPTION(sufix, name, dfault) \
static boolean \
debug_get_option_ ## sufix (void) \
{ \
   static boolean first = TRUE; \
   static boolean value; \
   if (first) { \
      first = FALSE; \
      value = debug_get_bool_option(name, dfault); \
   } \
   return value; \
}

#define DEBUG_GET_ONCE_NUM_OPTION(sufix, name, dfault) \
static long \
debug_get_option_ ## sufix (void) \
{ \
   static boolean first = TRUE; \
   static long value; \
   if (first) { \
      first = FALSE; \
      value = debug_get_num_option(name, dfault); \
   } \
   return value; \
}

#define DEBUG_GET_ONCE_FLAGS_OPTION(sufix, name, flags, dfault) \
static unsigned long \
debug_get_option_ ## sufix (void) \
{ \
   static boolean first = TRUE; \
   static unsigned long value; \
   if (first) { \
      first = FALSE; \
      value = debug_get_flags_option(name, flags, dfault); \
   } \
   return value; \
}


unsigned long
debug_memory_begin(void);

void 
debug_memory_end(unsigned long beginning);


void
debug_print_transfer_flags(const char *msg, unsigned usage);

void
debug_print_bind_flags(const char *msg, unsigned usage);

void
debug_print_usage_enum(const char *msg, enum pipe_resource_usage usage);


#ifdef	__cplusplus
}
#endif

#endif /* U_DEBUG_H_ */