1 /**************************************************************************
3 * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 **************************************************************************/
30 * Cross-platform debugging helpers.
32 * For now it just has assert and printf replacements, but it might be extended
33 * with stack trace reports and more advanced logging in the near future.
35 * @author Jose Fonseca <jrfonseca@tungstengraphics.com>
44 #include "p_compiler.h"
63 /* MSVC bebore VC7 does not have the __FUNCTION__ macro */
64 #if defined(_MSC_VER) && _MSC_VER < 1300
65 #define __FUNCTION__ "???"
69 void _debug_vprintf(const char *format
, va_list ap
);
73 _debug_printf(const char *format
, ...)
77 _debug_vprintf(format
, ap
);
83 * Print debug messages.
85 * The actual channel used to output debug message is platform specific. To
86 * avoid misformating or truncation, follow these rules of thumb:
87 * - output whole lines
88 * - avoid outputing large strings (512 bytes is the current maximum length
89 * that is guaranteed to be printed in all platforms)
92 debug_printf(const char *format
, ...)
97 _debug_vprintf(format
, ap
);
100 (void) format
; /* silence warning */
106 #define debug_vprintf(_format, _ap) _debug_vprintf(_format, _ap)
108 #define debug_vprintf(_format, _ap) ((void)0)
114 * Dump a blob in hex to the same place that debug_printf sends its
117 void debug_print_blob( const char *name
, const void *blob
, unsigned size
);
119 /* Print a message along with a prettified format string
121 void debug_print_format(const char *msg
, unsigned fmt
);
123 #define debug_print_blob(_name, _blob, _size) ((void)0)
124 #define debug_print_format(_msg, _fmt) ((void)0)
128 void _debug_break(void);
132 * Hard-coded breakpoint.
135 #if (defined(__i386__) || defined(__386__)) && defined(__GNUC__)
136 #define debug_break() __asm("int3")
137 #elif defined(_M_IX86) && defined(_MSC_VER)
138 #define debug_break() do { _asm {int 3} } while(0)
140 #define debug_break() _debug_break()
143 #define debug_break() ((void)0)
148 debug_get_num_option(const char *name
, long dfault
);
150 void _debug_assert_fail(const char *expr
,
153 const char *function
);
159 * Do not expect that the assert call terminates -- errors must be handled
160 * regardless of assert behavior.
163 #define debug_assert(expr) ((expr) ? (void)0 : _debug_assert_fail(#expr, __FILE__, __LINE__, __FUNCTION__))
165 #define debug_assert(expr) ((void)0)
169 /** Override standard assert macro */
173 #define assert(expr) debug_assert(expr)
177 * Output the current function name.
180 #define debug_checkpoint() \
181 _debug_printf("%s\n", __FUNCTION__)
183 #define debug_checkpoint() \
189 * Output the full source code position.
192 #define debug_checkpoint_full() \
193 _debug_printf("%s:%u:%s", __FILE__, __LINE__, __FUNCTION__)
195 #define debug_checkpoint_full() \
201 * Output a warning message. Muted on release version.
204 #define debug_warning(__msg) \
205 _debug_printf("%s:%u:%s: warning: %s\n", __FILE__, __LINE__, __FUNCTION__, __msg)
207 #define debug_warning(__msg) \
213 * Output an error message. Not muted on release version.
216 #define debug_error(__msg) \
217 _debug_printf("%s:%u:%s: error: %s\n", __FILE__, __LINE__, __FUNCTION__, __msg)
219 #define debug_error(__msg) \
220 _debug_printf("error: %s\n", __msg)
225 * Used by debug_dump_enum and debug_dump_flags to describe symbols.
227 struct debug_named_value
235 * Some C pre-processor magic to simplify creating named values.
239 * static const debug_named_value my_names[] = {
240 * DEBUG_NAMED_VALUE(MY_ENUM_VALUE_X),
241 * DEBUG_NAMED_VALUE(MY_ENUM_VALUE_Y),
242 * DEBUG_NAMED_VALUE(MY_ENUM_VALUE_Z),
243 * DEBUG_NAMED_VALUE_END
247 * debug_printf("%s = %s\n",
249 * debug_dump_enum(my_names, my_value));
253 #define DEBUG_NAMED_VALUE(__symbol) {#__symbol, (unsigned long)__symbol}
254 #define DEBUG_NAMED_VALUE_END {NULL, 0}
258 * Convert a enum value to a string.
261 debug_dump_enum(const struct debug_named_value
*names
,
262 unsigned long value
);
266 * Convert binary flags value to a string.
269 debug_dump_flags(const struct debug_named_value
*names
,
270 unsigned long value
);
276 * It is an alias for getenv on Linux.
278 * On Windows it reads C:\gallium.cfg, which is a text file with CR+LF line
279 * endings with one option per line as
283 * This file must be terminated with an extra empty line.
286 debug_get_option(const char *name
, const char *dfault
);
289 debug_get_bool_option(const char *name
, boolean dfault
);
292 debug_get_num_option(const char *name
, long dfault
);
295 debug_get_flags_option(const char *name
,
296 const struct debug_named_value
*flags
,
297 unsigned long dfault
);
301 debug_malloc(const char *file
, unsigned line
, const char *function
,
305 debug_free(const char *file
, unsigned line
, const char *function
,
309 debug_calloc(const char *file
, unsigned line
, const char *function
,
310 size_t count
, size_t size
);
313 debug_realloc(const char *file
, unsigned line
, const char *function
,
314 void *old_ptr
, size_t old_size
, size_t new_size
);
317 debug_memory_begin(void);
320 debug_memory_end(unsigned long beginning
);
323 #if defined(PROFILE) && defined(PIPE_SUBSYSTEM_WINDOWS_DISPLAY)
326 debug_profile_start(void);
329 debug_profile_stop(void);
335 void debug_dump_image(const char *prefix
,
336 unsigned format
, unsigned cpp
,
337 unsigned width
, unsigned height
,
341 #define debug_dump_image(prefix, format, cpp, width, height, pitch, data) ((void)0)
349 #endif /* P_DEBUG_H_ */