449cb9d7 |
1 | /* This file is part of the Linux Trace Toolkit viewer |
2 | * Copyright (C) 2003-2004 Xiangxiu Yang |
3 | * |
4 | * This program is free software; you can redistribute it and/or modify |
5 | * it under the terms of the GNU General Public License Version 2 as |
6 | * published by the Free Software Foundation; |
7 | * |
8 | * This program is distributed in the hope that it will be useful, |
9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
11 | * GNU General Public License for more details. |
12 | * |
13 | * You should have received a copy of the GNU General Public License |
14 | * along with this program; if not, write to the Free Software |
15 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, |
16 | * MA 02111-1307, USA. |
17 | */ |
18 | |
fcdf0ec2 |
19 | #ifndef LTT_PRIVATE_H |
20 | #define LTT_PRIVATE_H |
21 | |
858bd80a |
22 | #include <glib.h> |
cbd41522 |
23 | #include <sys/types.h> |
fcdf0ec2 |
24 | #include <ltt/ltt.h> |
3b10b765 |
25 | #include <endian.h> |
e3247aa5 |
26 | |
eed2ef37 |
27 | |
28 | #ifndef max |
29 | #define max(a,b) ((a)>(b)?(a):(b)) |
30 | #endif |
31 | |
2312de30 |
32 | #ifndef min |
33 | #define min(a,b) ((a)<(b)?(a):(b)) |
34 | #endif |
35 | |
36 | |
eed2ef37 |
37 | |
3aee1200 |
38 | #define LTT_MAGIC_NUMBER 0x00D6B7ED |
39 | #define LTT_REV_MAGIC_NUMBER 0xEDB7D600 |
40 | |
41 | #define NSEC_PER_USEC 1000 |
42 | |
cbd41522 |
43 | #define LTT_PACKED_STRUCT __attribute__ ((packed)) |
44 | |
3aee1200 |
45 | /* Hardcoded facilities */ |
46 | #define LTT_FACILITY_CORE 0 |
3b10b765 |
47 | |
48 | /* Byte ordering */ |
49 | #define LTT_GET_BO(t) ((t)->reverse_bo) |
50 | |
51 | #define LTT_HAS_FLOAT(t) ((t)->float_word_order!=0) |
52 | #define LTT_GET_FLOAT_BO(t) \ |
53 | (((t)->float_word_order==__BYTE_ORDER)?0:1) |
54 | |
f104d082 |
55 | #define SEQUENCE_AVG_ELEMENTS 1000 |
56 | |
3aee1200 |
57 | /* Hardcoded core events */ |
58 | enum ltt_core_events { |
59 | LTT_EVENT_FACILITY_LOAD, |
60 | LTT_EVENT_FACILITY_UNLOAD, |
b77d1b57 |
61 | LTT_EVENT_HEARTBEAT, |
62 | LTT_EVENT_STATE_DUMP_FACILITY_LOAD |
3aee1200 |
63 | }; |
64 | |
65 | |
66 | #if 0 |
e3247aa5 |
67 | /* enumeration definition */ |
68 | |
69 | typedef enum _BuildinEvent{ |
70 | TRACE_FACILITY_LOAD = 0, |
71 | TRACE_BLOCK_START = 17, |
72 | TRACE_BLOCK_END = 18, |
0d7aac52 |
73 | TRACE_TIME_HEARTBEAT= 19 |
e3247aa5 |
74 | } BuildinEvent; |
fcdf0ec2 |
75 | |
7c6b3cd7 |
76 | |
77 | /* structure definition */ |
78 | |
e3247aa5 |
79 | typedef struct _FacilityLoad{ |
45e14832 |
80 | gchar * name; |
e3247aa5 |
81 | LttChecksum checksum; |
cbd41522 |
82 | guint32 base_code; |
e3247aa5 |
83 | } LTT_PACKED_STRUCT FacilityLoad; |
84 | |
85 | typedef struct _BlockStart { |
3aee1200 |
86 | LttTime time; //Time stamp of this block |
e3247aa5 |
87 | LttCycleCount cycle_count; //cycle count of the event |
cbd41522 |
88 | guint32 block_id; //block id |
e3247aa5 |
89 | } LTT_PACKED_STRUCT BlockStart; |
90 | |
91 | typedef struct _BlockEnd { |
3aee1200 |
92 | LttTime time; //Time stamp of this block |
e3247aa5 |
93 | LttCycleCount cycle_count; //cycle count of the event |
cbd41522 |
94 | guint32 block_id; //block id |
e3247aa5 |
95 | } LTT_PACKED_STRUCT BlockEnd; |
3aee1200 |
96 | #endif //0 |
97 | |
98 | |
99 | typedef guint8 uint8_t; |
100 | typedef guint16 uint16_t; |
101 | typedef guint32 uint32_t; |
102 | typedef guint64 uint64_t; |
103 | |
16fcbb80 |
104 | /* Hardcoded facility load event : this plus an preceding "name" string */ |
3aee1200 |
105 | struct LttFacilityLoad { |
106 | guint32 checksum; |
107 | guint32 id; |
f104d082 |
108 | guint32 int_size; |
3aee1200 |
109 | guint32 long_size; |
110 | guint32 pointer_size; |
111 | guint32 size_t_size; |
f104d082 |
112 | guint32 has_alignment; |
16fcbb80 |
113 | } LTT_PACKED_STRUCT; |
3aee1200 |
114 | |
115 | struct LttFacilityUnload { |
116 | guint32 id; |
16fcbb80 |
117 | } LTT_PACKED_STRUCT; |
3aee1200 |
118 | |
119 | struct LttStateDumpFacilityLoad { |
120 | guint32 checksum; |
121 | guint32 id; |
f104d082 |
122 | guint32 int_size; |
3aee1200 |
123 | guint32 long_size; |
124 | guint32 pointer_size; |
125 | guint32 size_t_size; |
f104d082 |
126 | guint32 has_alignment; |
16fcbb80 |
127 | } LTT_PACKED_STRUCT; |
e3247aa5 |
128 | |
129 | typedef struct _TimeHeartbeat { |
3aee1200 |
130 | LttTime time; //Time stamp of this block |
131 | uint64_t cycle_count; //cycle count of the event |
e3247aa5 |
132 | } LTT_PACKED_STRUCT TimeHeartbeat; |
133 | |
3aee1200 |
134 | struct ltt_event_header_hb { |
135 | uint32_t timestamp; |
136 | unsigned char facility_id; |
137 | unsigned char event_id; |
138 | uint16_t event_size; |
16fcbb80 |
139 | } LTT_PACKED_STRUCT; |
3aee1200 |
140 | |
141 | struct ltt_event_header_nohb { |
142 | uint64_t timestamp; |
143 | unsigned char facility_id; |
144 | unsigned char event_id; |
145 | uint16_t event_size; |
16fcbb80 |
146 | } LTT_PACKED_STRUCT; |
3aee1200 |
147 | |
b7576a11 |
148 | |
149 | /* Block and trace headers */ |
150 | |
151 | struct ltt_trace_header_any { |
152 | uint32_t magic_number; |
153 | uint32_t arch_type; |
154 | uint32_t arch_variant; |
155 | uint32_t float_word_order; |
156 | uint8_t arch_size; |
157 | uint8_t major_version; |
158 | uint8_t minor_version; |
159 | uint8_t flight_recorder; |
160 | uint8_t has_heartbeat; |
161 | uint8_t has_alignment; /* Event header alignment */ |
162 | uint8_t has_tsc; |
163 | } LTT_PACKED_STRUCT; |
164 | |
165 | |
166 | /* For version 0.3 */ |
167 | |
168 | struct ltt_trace_header_0_3 { |
3aee1200 |
169 | uint32_t magic_number; |
170 | uint32_t arch_type; |
171 | uint32_t arch_variant; |
79257ba5 |
172 | uint32_t float_word_order; |
3aee1200 |
173 | uint8_t arch_size; |
b7576a11 |
174 | uint8_t major_version; |
175 | uint8_t minor_version; |
176 | uint8_t flight_recorder; |
177 | uint8_t has_heartbeat; |
178 | uint8_t has_alignment; /* Event header alignment */ |
179 | uint8_t has_tsc; |
16fcbb80 |
180 | } LTT_PACKED_STRUCT; |
3aee1200 |
181 | |
986e2a7c |
182 | /* For version 0.4 */ |
183 | |
184 | struct ltt_trace_header_0_4 { |
185 | uint32_t magic_number; |
186 | uint32_t arch_type; |
187 | uint32_t arch_variant; |
188 | uint32_t float_word_order; |
189 | uint8_t arch_size; |
190 | uint8_t major_version; |
191 | uint8_t minor_version; |
192 | uint8_t flight_recorder; |
193 | uint8_t has_heartbeat; |
194 | uint8_t has_alignment; /* Event header alignment */ |
195 | uint8_t has_tsc; |
791dffa6 |
196 | uint64_t start_freq; |
197 | uint64_t start_tsc; |
986e2a7c |
198 | uint64_t start_monotonic; |
f104d082 |
199 | struct timeval start_time; |
986e2a7c |
200 | } LTT_PACKED_STRUCT; |
3aee1200 |
201 | |
b7576a11 |
202 | |
3aee1200 |
203 | struct ltt_block_start_header { |
204 | struct { |
f221c98e |
205 | struct timeval timestamp; |
3aee1200 |
206 | uint64_t cycle_count; |
986e2a7c |
207 | uint64_t freq; |
3aee1200 |
208 | } begin; |
209 | struct { |
f221c98e |
210 | struct timeval timestamp; |
3aee1200 |
211 | uint64_t cycle_count; |
986e2a7c |
212 | uint64_t freq; |
3aee1200 |
213 | } end; |
214 | uint32_t lost_size; /* Size unused at the end of the buffer */ |
215 | uint32_t buf_size; /* The size of this sub-buffer */ |
51551c6f |
216 | struct ltt_trace_header_any trace[0]; |
16fcbb80 |
217 | } LTT_PACKED_STRUCT; |
3aee1200 |
218 | |
e3247aa5 |
219 | |
220 | struct _LttType{ |
f104d082 |
221 | // LTTV does not care about type names. Everything is a field. |
222 | // GQuark type_name; //type name if it is a named type |
45e14832 |
223 | gchar * fmt; |
f104d082 |
224 | guint size; |
e3247aa5 |
225 | LttTypeEnum type_class; //which type |
2312de30 |
226 | GHashTable *enum_map; //maps enum labels to numbers. |
f104d082 |
227 | GArray *fields; // Array of LttFields, for array, sequence, union, struct. |
228 | GData *fields_by_name; |
7c6b3cd7 |
229 | }; |
230 | |
e3247aa5 |
231 | struct _LttEventType{ |
3aee1200 |
232 | GQuark name; |
45e14832 |
233 | gchar * description; |
f104d082 |
234 | guint index; //id of the event type within the facility |
e3247aa5 |
235 | LttFacility * facility; //the facility that contains the event type |
f104d082 |
236 | GArray * fields; //event's fields (LttField) |
237 | GData *fields_by_name; |
7c6b3cd7 |
238 | }; |
239 | |
3aee1200 |
240 | /* Structure LttEvent and LttEventPosition must begin with the _exact_ same |
241 | * fields in the exact same order. LttEventPosition is a parent of LttEvent. */ |
c02ea99f |
242 | struct _LttEvent{ |
3aee1200 |
243 | |
244 | /* Begin of LttEventPosition fields */ |
245 | LttTracefile *tracefile; |
246 | unsigned int block; |
eed2ef37 |
247 | unsigned int offset; |
3aee1200 |
248 | |
249 | /* Timekeeping */ |
250 | uint64_t tsc; /* Current timestamp counter */ |
251 | |
252 | /* End of LttEventPosition fields */ |
253 | |
254 | union { /* choice by trace has_tsc */ |
255 | guint32 timestamp; /* truncated timestamp */ |
256 | LttTime delta; |
257 | } time; |
258 | |
259 | unsigned char facility_id; /* facility ID are never reused. */ |
260 | unsigned char event_id; |
261 | |
c02ea99f |
262 | LttTime event_time; |
3aee1200 |
263 | |
c02ea99f |
264 | void * data; //event data |
77175651 |
265 | guint data_size; |
b77d1b57 |
266 | guint event_size; //event_size field of the header : |
267 | //used to verify data_size from facility. |
3aee1200 |
268 | |
c02ea99f |
269 | int count; //the number of overflow of cycle count |
2dee981d |
270 | gint64 overflow_nsec; //precalculated nsec for overflows |
3aee1200 |
271 | }; |
dfb73233 |
272 | |
3aee1200 |
273 | struct _LttEventPosition{ |
274 | LttTracefile *tracefile; |
275 | unsigned int block; |
eed2ef37 |
276 | unsigned int offset; |
3aee1200 |
277 | |
278 | /* Timekeeping */ |
279 | uint64_t tsc; /* Current timestamp counter */ |
c02ea99f |
280 | }; |
281 | |
282 | |
3aee1200 |
283 | enum field_status { FIELD_UNKNOWN, FIELD_VARIABLE, FIELD_FIXED }; |
284 | |
e3247aa5 |
285 | struct _LttField{ |
f104d082 |
286 | GQuark name; |
287 | gchar *description; |
288 | LttType field_type; //field type |
289 | |
290 | off_t offset_root; //offset from the root |
291 | enum field_status fixed_root; //offset fixed according to the root |
292 | |
293 | guint field_size; // size of the field |
294 | // Only if field type size is set to 0 |
295 | // (it's variable), then the field_size should be |
296 | // dynamically calculated while reading the trace |
297 | // and put here. Otherwise, the field_size always |
298 | // equels the type size. |
299 | off_t array_offset; // offset of the beginning of the array (for array |
300 | // and sequences) |
301 | GArray * dynamic_offsets; // array of offsets calculated dynamically at |
302 | // each event for sequences and arrays that |
303 | // contain variable length fields. |
7c6b3cd7 |
304 | }; |
305 | |
e3247aa5 |
306 | struct _LttFacility{ |
3aee1200 |
307 | LttTrace *trace; |
3aee1200 |
308 | GQuark name; |
309 | guint32 checksum; //checksum of the facility |
310 | guint32 id; //id of the facility |
311 | |
f104d082 |
312 | guint32 int_size; |
cb03932a |
313 | guint32 long_size; |
f104d082 |
314 | guint32 pointer_size; |
3aee1200 |
315 | guint32 size_t_size; |
316 | guint32 alignment; |
317 | |
3aee1200 |
318 | GArray *events; |
319 | GData *events_by_name; |
f104d082 |
320 | // not necessary in LTTV GData *named_types; |
3aee1200 |
321 | |
322 | unsigned char exists; /* 0 does not exist, 1 exists */ |
7c6b3cd7 |
323 | }; |
324 | |
3aee1200 |
325 | typedef struct _LttBuffer { |
326 | void * head; |
327 | unsigned int index; |
328 | |
329 | struct { |
330 | LttTime timestamp; |
331 | uint64_t cycle_count; |
986e2a7c |
332 | uint64_t freq; /* Frequency in khz */ |
3aee1200 |
333 | } begin; |
334 | struct { |
335 | LttTime timestamp; |
336 | uint64_t cycle_count; |
986e2a7c |
337 | uint64_t freq; /* Frequency in khz */ |
3aee1200 |
338 | } end; |
339 | uint32_t lost_size; /* Size unused at the end of the buffer */ |
340 | |
341 | /* Timekeeping */ |
342 | uint64_t tsc; /* Current timestamp counter */ |
986e2a7c |
343 | uint64_t freq; /* Frequency in khz */ |
791dffa6 |
344 | //double nsecs_per_cycle; /* Precalculated from freq */ |
345 | guint32 cyc2ns_scale; |
3aee1200 |
346 | } LttBuffer; |
347 | |
e3247aa5 |
348 | struct _LttTracefile{ |
3aee1200 |
349 | gboolean cpu_online; //is the cpu online ? |
d3d34f49 |
350 | GQuark long_name; //tracefile complete filename |
3aee1200 |
351 | GQuark name; //tracefile name |
352 | guint cpu_num; //cpu number of the tracefile |
e3247aa5 |
353 | LttTrace * trace; //trace containing the tracefile |
354 | int fd; //file descriptor |
355 | off_t file_size; //file size |
f628823c |
356 | //unsigned block_size; //block_size |
f104d082 |
357 | guint num_blocks; //number of blocks in the file |
3aee1200 |
358 | gboolean reverse_bo; //must we reverse byte order ? |
3b10b765 |
359 | gboolean float_word_order; //what is the byte order of floats ? |
f104d082 |
360 | size_t has_alignment; //alignment of events in the tracefile. |
361 | // 0 or the architecture size in bytes. |
3aee1200 |
362 | |
823820eb |
363 | size_t buffer_header_size; |
364 | |
3aee1200 |
365 | /* Current event */ |
366 | LttEvent event; //Event currently accessible in the trace |
367 | |
368 | /* Current block */ |
369 | LttBuffer buffer; //current buffer |
370 | guint32 buf_size; /* The size of blocks */ |
371 | |
372 | /* Time flow */ |
373 | //unsigned int count; //the number of overflow of cycle count |
374 | //double nsec_per_cycle; //Nsec per cycle |
375 | //TimeHeartbeat * last_heartbeat; //last heartbeat |
376 | |
887208b7 |
377 | //LttCycleCount cycles_per_nsec_reciprocal; // Optimisation for speed |
3aee1200 |
378 | //void * last_event_pos; |
7c6b3cd7 |
379 | |
3aee1200 |
380 | //LttTime prev_block_end_time; //the end time of previous block |
381 | //LttTime prev_event_time; //the time of the previous event |
382 | //LttCycleCount pre_cycle_count; //previous cycle count of the event |
e3247aa5 |
383 | }; |
7c6b3cd7 |
384 | |
3aee1200 |
385 | struct _LttTrace{ |
386 | GQuark pathname; //the pathname of the trace |
387 | //LttSystemDescription * system_description;//system description |
388 | |
389 | GArray *facilities_by_num; /* fac_id as index in array */ |
390 | GData *facilities_by_name; /* fac name (GQuark) as index */ |
391 | /* Points to array of fac_id of all the |
b56dcdf2 |
392 | * facilities that has this name. */ |
393 | guint num_cpu; |
3aee1200 |
394 | |
16fcbb80 |
395 | guint32 arch_type; |
396 | guint32 arch_variant; |
397 | guint8 arch_size; |
3aee1200 |
398 | guint8 ltt_major_version; |
399 | guint8 ltt_minor_version; |
400 | guint8 flight_recorder; |
401 | guint8 has_heartbeat; |
3aee1200 |
402 | guint8 has_tsc; |
791dffa6 |
403 | uint64_t start_freq; |
404 | uint64_t start_tsc; |
986e2a7c |
405 | uint64_t start_monotonic; |
406 | LttTime start_time; |
88612d17 |
407 | LttTime start_time_from_tsc; |
3aee1200 |
408 | |
409 | GData *tracefiles; //tracefiles groups |
80da81ad |
410 | }; |
7c6b3cd7 |
411 | |
a5dcde2f |
412 | /* The characteristics of the system on which the trace was obtained |
413 | is described in a LttSystemDescription structure. */ |
414 | |
415 | struct _LttSystemDescription { |
45e14832 |
416 | gchar *description; |
417 | gchar *node_name; |
418 | gchar *domain_name; |
a5dcde2f |
419 | unsigned nb_cpu; |
420 | LttArchSize size; |
421 | LttArchEndian endian; |
45e14832 |
422 | gchar *kernel_name; |
423 | gchar *kernel_release; |
424 | gchar *kernel_version; |
425 | gchar *machine; |
426 | gchar *processor; |
427 | gchar *hardware_platform; |
428 | gchar *operating_system; |
a5dcde2f |
429 | LttTime trace_start; |
430 | LttTime trace_end; |
431 | }; |
432 | |
7c6b3cd7 |
433 | /***************************************************************************** |
434 | macro for size of some data types |
435 | *****************************************************************************/ |
3aee1200 |
436 | // alignment -> dynamic! |
437 | |
438 | //#define TIMESTAMP_SIZE sizeof(guint32) |
439 | //#define EVENT_ID_SIZE sizeof(guint16) |
440 | //#define EVENT_HEADER_SIZE (TIMESTAMP_SIZE + EVENT_ID_SIZE) |
441 | |
7c6b3cd7 |
442 | |
f104d082 |
443 | /* Calculate the offset needed to align the type. |
444 | * If has_alignment is 0, alignment is disactivated. |
445 | * else, the function returns the offset needed to |
446 | * align align_drift on the has_alignment value (should be |
447 | * the size of the architecture). */ |
448 | static inline unsigned int ltt_align(size_t align_drift, |
449 | size_t size_of_type, |
450 | size_t has_alignment) |
451 | { |
452 | size_t alignment = min(has_alignment, size_of_type); |
453 | |
454 | return ((alignment - align_drift) & (alignment-1)); |
455 | } |
456 | |
457 | off_t field_align(LttTracefile *tf, LttField *field, off_t offset); |
458 | |
459 | |
fcdf0ec2 |
460 | #endif /* LTT_PRIVATE_H */ |