6cd62ccf |
1 | #include <stdio.h> |
2 | #include <fcntl.h> |
3 | #include <sys/stat.h> |
4 | #include <sys/types.h> |
963b5f2d |
5 | #include <dirent.h> |
6cd62ccf |
6 | #include <linux/errno.h> |
7 | |
6cd62ccf |
8 | #include "parser.h" |
963b5f2d |
9 | #include <ltt/trace.h> |
6cd62ccf |
10 | |
963b5f2d |
11 | #define DIR_NAME_SIZE 256 |
6cd62ccf |
12 | |
13 | /* set the offset of the fields belonging to the event, |
14 | need the information of the archecture */ |
40331ba8 |
15 | void setFieldsOffset(LttTracefile *tf,LttEventType *evT,void *evD,LttTrace *t); |
6cd62ccf |
16 | |
17 | /* get the size of the field type according to the archtecture's |
18 | size and endian type(info of the archecture) */ |
40331ba8 |
19 | int getFieldtypeSize(LttTracefile * tf, LttEventType * evT, int offsetRoot, |
20 | int offsetParent, LttField *fld, void *evD, LttTrace* t); |
6cd62ccf |
21 | |
22 | /* read a fixed size or a block information from the file (fd) */ |
23 | int readFile(int fd, void * buf, size_t size, char * mesg); |
963b5f2d |
24 | int readBlock(LttTracefile * tf, int whichBlock); |
6cd62ccf |
25 | |
26 | /* calculate cycles per nsec for current block */ |
963b5f2d |
27 | void getCyclePerNsec(LttTracefile * t); |
6cd62ccf |
28 | |
29 | /* reinitialize the info of the block which is already in the buffer */ |
963b5f2d |
30 | void updateTracefile(LttTracefile * tf); |
6cd62ccf |
31 | |
32 | /* go to the next event */ |
963b5f2d |
33 | int skipEvent(LttTracefile * t); |
6cd62ccf |
34 | |
6cd62ccf |
35 | |
36 | /***************************************************************************** |
37 | *Function name |
963b5f2d |
38 | * ltt_tracefile_open : open a trace file, construct a LttTracefile |
6cd62ccf |
39 | *Input params |
963b5f2d |
40 | * t : the trace containing the tracefile |
41 | * fileName : path name of the trace file |
6cd62ccf |
42 | *Return value |
963b5f2d |
43 | * : a pointer to a tracefile |
6cd62ccf |
44 | ****************************************************************************/ |
45 | |
963b5f2d |
46 | LttTracefile* ltt_tracefile_open(LttTrace * t, char * fileName) |
6cd62ccf |
47 | { |
963b5f2d |
48 | LttTracefile * tf; |
49 | struct stat lTDFStat; /* Trace data file status */ |
50 | BlockStart a_block_start; |
6cd62ccf |
51 | |
963b5f2d |
52 | tf = g_new(LttTracefile, 1); |
6cd62ccf |
53 | |
54 | //open the file |
963b5f2d |
55 | tf->name = g_strdup(fileName); |
56 | tf->trace = t; |
6cd62ccf |
57 | tf->fd = open(fileName, O_RDONLY, 0); |
58 | if(tf->fd < 0){ |
59 | g_error("Unable to open input data file %s\n", fileName); |
60 | } |
61 | |
62 | // Get the file's status |
63 | if(fstat(tf->fd, &lTDFStat) < 0){ |
64 | g_error("Unable to get the status of the input data file %s\n", fileName); |
65 | } |
66 | |
67 | // Is the file large enough to contain a trace |
963b5f2d |
68 | if(lTDFStat.st_size < sizeof(BlockStart) + EVENT_HEADER_SIZE){ |
8710c6c7 |
69 | g_print("The input data file %s does not contain a trace\n", fileName); |
663bd9ff |
70 | g_free(tf->name); |
71 | close(tf->fd); |
72 | g_free(tf); |
8710c6c7 |
73 | return NULL; |
6cd62ccf |
74 | } |
75 | |
76 | //store the size of the file |
77 | tf->file_size = lTDFStat.st_size; |
963b5f2d |
78 | tf->block_size = t->system_description->ltt_block_size; |
79 | tf->block_number = tf->file_size / tf->block_size; |
80 | tf->which_block = 0; |
6cd62ccf |
81 | |
82 | //allocate memory to contain the info of a block |
963b5f2d |
83 | tf->buffer = (void *) g_new(char, t->system_description->ltt_block_size); |
6cd62ccf |
84 | |
963b5f2d |
85 | //read the first block |
86 | if(readBlock(tf,1)) exit(1); |
6cd62ccf |
87 | |
88 | return tf; |
89 | } |
90 | |
6cd62ccf |
91 | |
92 | /***************************************************************************** |
963b5f2d |
93 | *Open control and per cpu tracefiles |
6cd62ccf |
94 | ****************************************************************************/ |
95 | |
963b5f2d |
96 | void ltt_tracefile_open_cpu(LttTrace *t, char * tracefile_name) |
6cd62ccf |
97 | { |
963b5f2d |
98 | LttTracefile * tf; |
99 | tf = ltt_tracefile_open(t,tracefile_name); |
4a6c8e36 |
100 | if(!tf) return; |
963b5f2d |
101 | t->per_cpu_tracefile_number++; |
102 | g_ptr_array_add(t->per_cpu_tracefiles, tf); |
6cd62ccf |
103 | } |
104 | |
963b5f2d |
105 | void ltt_tracefile_open_control(LttTrace *t, char * control_name) |
6cd62ccf |
106 | { |
963b5f2d |
107 | LttTracefile * tf; |
108 | LttEvent * ev; |
109 | LttFacility * f; |
cbd41522 |
110 | guint16 evId; |
963b5f2d |
111 | void * pos; |
112 | FacilityLoad fLoad; |
113 | int i; |
114 | |
115 | tf = ltt_tracefile_open(t,control_name); |
8710c6c7 |
116 | if(!tf) return; |
963b5f2d |
117 | t->control_tracefile_number++; |
118 | g_ptr_array_add(t->control_tracefiles,tf); |
119 | |
120 | //parse facilities tracefile to get base_id |
542ceddd |
121 | if(strcmp(&control_name[strlen(control_name)-10],"facilities") ==0){ |
963b5f2d |
122 | while(1){ |
40331ba8 |
123 | ev = ltt_tracefile_read(tf); |
124 | if(!ev)return; // end of file |
125 | |
126 | if(ev->event_id == TRACE_FACILITY_LOAD){ |
127 | pos = ev->data; |
963b5f2d |
128 | fLoad.name = (char*)pos; |
47a166fc |
129 | fLoad.checksum = *(LttChecksum*)(pos + strlen(fLoad.name)); |
cbd41522 |
130 | fLoad.base_code = *(guint32 *)(pos + strlen(fLoad.name) + sizeof(LttChecksum)); |
963b5f2d |
131 | |
132 | for(i=0;i<t->facility_number;i++){ |
133 | f = (LttFacility*)g_ptr_array_index(t->facilities,i); |
134 | if(strcmp(f->name,fLoad.name)==0 && fLoad.checksum==f->checksum){ |
135 | f->base_id = fLoad.base_code; |
136 | break; |
137 | } |
138 | } |
139 | if(i==t->facility_number) |
140 | g_error("Facility: %s, checksum: %d is not founded\n", |
141 | fLoad.name,fLoad.checksum); |
40331ba8 |
142 | }else if(ev->event_id == TRACE_BLOCK_START){ |
143 | continue; |
144 | }else if(ev->event_id == TRACE_BLOCK_END){ |
145 | break; |
963b5f2d |
146 | }else g_error("Not valid facilities trace file\n"); |
147 | } |
148 | } |
6cd62ccf |
149 | } |
150 | |
151 | /***************************************************************************** |
152 | *Function name |
963b5f2d |
153 | * ltt_tracefile_close: close a trace file, |
6cd62ccf |
154 | *Input params |
963b5f2d |
155 | * t : tracefile which will be closed |
6cd62ccf |
156 | ****************************************************************************/ |
157 | |
963b5f2d |
158 | void ltt_tracefile_close(LttTracefile *t) |
6cd62ccf |
159 | { |
963b5f2d |
160 | g_free(t->name); |
161 | g_free(t->buffer); |
663bd9ff |
162 | close(t->fd); |
963b5f2d |
163 | g_free(t); |
164 | } |
6cd62ccf |
165 | |
6cd62ccf |
166 | |
963b5f2d |
167 | /***************************************************************************** |
168 | *Get system information |
169 | ****************************************************************************/ |
170 | void getSystemInfo(LttSystemDescription* des, char * pathname) |
171 | { |
172 | FILE * fp; |
173 | int i; |
174 | int entry_number = 15; |
175 | char buf[DIR_NAME_SIZE]; |
176 | char description[4*DIR_NAME_SIZE]; |
177 | char * ptr; |
178 | |
179 | fp = fopen(pathname,"r"); |
180 | if(!fp){ |
181 | g_error("Can not open file : %s\n", pathname); |
6cd62ccf |
182 | } |
963b5f2d |
183 | |
184 | while(fgets(buf,DIR_NAME_SIZE, fp)!= NULL){ |
185 | ptr = buf; |
186 | while(isspace(*ptr)) ptr++; |
187 | if(strlen(ptr) == 0) continue; |
188 | break; |
6cd62ccf |
189 | } |
190 | |
963b5f2d |
191 | if(strlen(ptr) == 0) g_error("Not a valid file: %s\n", pathname); |
192 | if(strncmp("<system",ptr,7) !=0)g_error("Not a valid file: %s\n", pathname); |
193 | |
194 | for(i=0;i<entry_number;i++){ |
195 | if(fgets(buf,DIR_NAME_SIZE, fp)== NULL) |
196 | g_error("Not a valid file: %s\n", pathname); |
8710c6c7 |
197 | buf[strlen(buf)-1] = '\0'; |
963b5f2d |
198 | ptr = buf; |
199 | while(isspace(*ptr)) ptr++; |
200 | switch(i){ |
201 | case 0: |
202 | if(strncmp("node_name=",ptr,10)!=0) |
203 | g_error("Not a valid file: %s\n", pathname); |
204 | des->node_name = g_strdup(ptr+10); |
205 | break; |
206 | case 1: |
207 | if(strncmp("domainname=",ptr,11)!=0) |
208 | g_error("Not a valid file: %s\n", pathname); |
209 | des->domain_name = g_strdup(ptr+11); |
210 | break; |
211 | case 2: |
212 | if(strncmp("cpu=",ptr,4)!=0) |
213 | g_error("Not a valid file: %s\n", pathname); |
214 | des->nb_cpu = (unsigned)atoi(ptr+4); |
215 | break; |
216 | case 3: |
217 | if(strncmp("arch_size=",ptr,10)!=0) |
218 | g_error("Not a valid file: %s\n", pathname); |
219 | if(strcmp(ptr+10,"\"LP32\"") == 0) des->size = LTT_LP32; |
220 | else if(strcmp(ptr+10,"\"ILP32\"") == 0) des->size = LTT_ILP32; |
221 | else if(strcmp(ptr+10,"\"LP64\"") == 0) des->size = LTT_LP64; |
222 | else if(strcmp(ptr+10,"\"ILP64\"") == 0) des->size = LTT_ILP64; |
223 | else if(strcmp(ptr+10,"\"UNKNOWN\"") == 0) des->size = LTT_UNKNOWN; |
224 | break; |
225 | case 4: |
226 | if(strncmp("endian=",ptr,7)!=0) |
227 | g_error("Not a valid file: %s\n", pathname); |
228 | if(strcmp(ptr+7,"\"LITTLE_ENDIAN\"") == 0) |
229 | des->endian = LTT_LITTLE_ENDIAN; |
230 | else if(strcmp(ptr+7,"\"BIG_ENDIAN\"") == 0) |
231 | des->endian = LTT_BIG_ENDIAN; |
232 | break; |
233 | case 5: |
234 | if(strncmp("kernel_name=",ptr,12)!=0) |
235 | g_error("Not a valid file: %s\n", pathname); |
236 | des->kernel_name = g_strdup(ptr+12); |
237 | break; |
238 | case 6: |
239 | if(strncmp("kernel_release=",ptr,15)!=0) |
240 | g_error("Not a valid file: %s\n", pathname); |
241 | des->kernel_release = g_strdup(ptr+15); |
242 | break; |
243 | case 7: |
244 | if(strncmp("kernel_version=",ptr,15)!=0) |
245 | g_error("Not a valid file: %s\n", pathname); |
246 | des->kernel_version = g_strdup(ptr+15); |
247 | break; |
248 | case 8: |
249 | if(strncmp("machine=",ptr,8)!=0) |
250 | g_error("Not a valid file: %s\n", pathname); |
251 | des->machine = g_strdup(ptr+8); |
252 | break; |
253 | case 9: |
254 | if(strncmp("processor=",ptr,10)!=0) |
255 | g_error("Not a valid file: %s\n", pathname); |
256 | des->processor = g_strdup(ptr+10); |
257 | break; |
258 | case 10: |
259 | if(strncmp("hardware_platform=",ptr,18)!=0) |
260 | g_error("Not a valid file: %s\n", pathname); |
261 | des->hardware_platform = g_strdup(ptr+18); |
262 | break; |
263 | case 11: |
264 | if(strncmp("operating_system=",ptr,17)!=0) |
265 | g_error("Not a valid file: %s\n", pathname); |
266 | des->operating_system = g_strdup(ptr+17); |
267 | break; |
268 | case 12: |
269 | if(strncmp("ltt_major_version=",ptr,18)!=0) |
270 | g_error("Not a valid file: %s\n", pathname); |
271 | ptr += 18; |
8710c6c7 |
272 | // ptr++;//skip begining " |
273 | // ptr[strlen(ptr)-1] = '\0'; //get rid of the ending " |
963b5f2d |
274 | des->ltt_major_version = (unsigned)atoi(ptr); |
275 | break; |
276 | case 13: |
277 | if(strncmp("ltt_minor_version=",ptr,18)!=0) |
278 | g_error("Not a valid file: %s\n", pathname); |
279 | ptr += 18; |
8710c6c7 |
280 | // ptr++;//skip begining " |
281 | // ptr[strlen(ptr)-1] = '\0'; //get rid of the ending " |
963b5f2d |
282 | des->ltt_minor_version = (unsigned)atoi(ptr); |
283 | break; |
284 | case 14: |
285 | if(strncmp("ltt_block_size=",ptr,15)!=0) |
286 | g_error("Not a valid file: %s\n", pathname); |
287 | ptr += 15; |
8710c6c7 |
288 | // ptr++;//skip begining " |
289 | // ptr[strlen(ptr)-1] = '\0'; //get rid of the ending " |
963b5f2d |
290 | des->ltt_block_size = (unsigned)atoi(ptr); |
291 | break; |
292 | default: |
293 | g_error("Not a valid file: %s\n", pathname); |
294 | } |
6cd62ccf |
295 | } |
296 | |
963b5f2d |
297 | //get description |
298 | description[0] = '\0'; |
299 | if(fgets(buf,DIR_NAME_SIZE, fp)== NULL) |
300 | g_error("Not a valid file: %s\n", pathname); |
301 | ptr = buf; |
302 | while(isspace(*ptr)) ptr++; |
303 | if(*ptr != '>') g_error("Not a valid file: %s\n", pathname); |
304 | while((ptr=fgets(buf,DIR_NAME_SIZE, fp))!= NULL){ |
305 | ptr = buf; |
306 | while(isspace(*ptr)) ptr++; |
307 | if(strncmp("</system>",ptr,9) == 0 )break; |
308 | strcat(description, buf); |
309 | } |
310 | if(!ptr)g_error("Not a valid file: %s\n", pathname); |
311 | if(description[0] = '\0')des->description = NULL; |
312 | des->description = g_strdup(description); |
6cd62ccf |
313 | |
963b5f2d |
314 | fclose(fp); |
6cd62ccf |
315 | } |
316 | |
317 | /***************************************************************************** |
963b5f2d |
318 | *The following functions get facility/tracefile information |
6cd62ccf |
319 | ****************************************************************************/ |
320 | |
963b5f2d |
321 | void getFacilityInfo(LttTrace *t, char* eventdefs) |
6cd62ccf |
322 | { |
963b5f2d |
323 | DIR * dir; |
324 | struct dirent *entry; |
325 | char * ptr; |
326 | int i,j; |
327 | LttFacility * f; |
328 | LttEventType * et; |
e8bb1a73 |
329 | char name[DIR_NAME_SIZE]; |
963b5f2d |
330 | |
331 | dir = opendir(eventdefs); |
332 | if(!dir) g_error("Can not open directory: %s\n", eventdefs); |
333 | |
334 | while((entry = readdir(dir)) != NULL){ |
335 | ptr = &entry->d_name[strlen(entry->d_name)-4]; |
336 | if(strcmp(ptr,".xml") != 0) continue; |
e8bb1a73 |
337 | strcpy(name,eventdefs); |
338 | strcat(name,entry->d_name); |
339 | ltt_facility_open(t,name); |
963b5f2d |
340 | } |
341 | closedir(dir); |
342 | |
963b5f2d |
343 | for(j=0;j<t->facility_number;j++){ |
8710c6c7 |
344 | f = (LttFacility*)g_ptr_array_index(t->facilities, j); |
963b5f2d |
345 | for(i=0; i<f->event_number; i++){ |
346 | et = f->events[i]; |
40331ba8 |
347 | setFieldsOffset(NULL, et, NULL, t); |
963b5f2d |
348 | } |
349 | } |
350 | } |
6cd62ccf |
351 | |
963b5f2d |
352 | void getControlFileInfo(LttTrace *t, char* control) |
6cd62ccf |
353 | { |
963b5f2d |
354 | DIR * dir; |
355 | struct dirent *entry; |
e8bb1a73 |
356 | char name[DIR_NAME_SIZE]; |
963b5f2d |
357 | |
358 | dir = opendir(control); |
359 | if(!dir) g_error("Can not open directory: %s\n", control); |
360 | |
361 | while((entry = readdir(dir)) != NULL){ |
8710c6c7 |
362 | if(strcmp(entry->d_name,"facilities") != 0 && |
363 | strcmp(entry->d_name,"interrupts") != 0 && |
963b5f2d |
364 | strcmp(entry->d_name,"processes") != 0) continue; |
365 | |
e8bb1a73 |
366 | strcpy(name,control); |
367 | strcat(name,entry->d_name); |
368 | ltt_tracefile_open_control(t,name); |
963b5f2d |
369 | } |
370 | closedir(dir); |
6cd62ccf |
371 | } |
372 | |
963b5f2d |
373 | void getCpuFileInfo(LttTrace *t, char* cpu) |
6cd62ccf |
374 | { |
963b5f2d |
375 | DIR * dir; |
376 | struct dirent *entry; |
e8bb1a73 |
377 | char name[DIR_NAME_SIZE]; |
963b5f2d |
378 | |
379 | dir = opendir(cpu); |
380 | if(!dir) g_error("Can not open directory: %s\n", cpu); |
381 | |
382 | while((entry = readdir(dir)) != NULL){ |
8710c6c7 |
383 | if(strcmp(entry->d_name,".") != 0 && |
963b5f2d |
384 | strcmp(entry->d_name,"..") != 0 ){ |
e8bb1a73 |
385 | strcpy(name,cpu); |
386 | strcat(name,entry->d_name); |
387 | ltt_tracefile_open_cpu(t,name); |
963b5f2d |
388 | }else continue; |
389 | } |
390 | closedir(dir); |
6cd62ccf |
391 | } |
392 | |
963b5f2d |
393 | /***************************************************************************** |
394 | *A trace is specified as a pathname to the directory containing all the |
395 | *associated data (control tracefiles, per cpu tracefiles, event |
396 | *descriptions...). |
397 | * |
398 | *When a trace is closed, all the associated facilities, types and fields |
399 | *are released as well. |
400 | ****************************************************************************/ |
6cd62ccf |
401 | |
f7afe191 |
402 | LttTrace *ltt_trace_open(const char *pathname) |
6cd62ccf |
403 | { |
963b5f2d |
404 | LttTrace * t; |
405 | LttSystemDescription * sys_description; |
406 | char eventdefs[DIR_NAME_SIZE]; |
407 | char info[DIR_NAME_SIZE]; |
408 | char control[DIR_NAME_SIZE]; |
409 | char cpu[DIR_NAME_SIZE]; |
410 | char tmp[DIR_NAME_SIZE]; |
411 | gboolean has_slash = FALSE; |
412 | |
413 | //establish the pathname to different directories |
414 | if(pathname[strlen(pathname)-1] == '/')has_slash = TRUE; |
415 | strcpy(eventdefs,pathname); |
416 | if(!has_slash)strcat(eventdefs,"/"); |
417 | strcat(eventdefs,"eventdefs/"); |
418 | |
419 | strcpy(info,pathname); |
420 | if(!has_slash)strcat(info,"/"); |
421 | strcat(info,"info/"); |
422 | |
423 | strcpy(control,pathname); |
424 | if(!has_slash)strcat(control,"/"); |
425 | strcat(control,"control/"); |
426 | |
427 | strcpy(cpu,pathname); |
428 | if(!has_slash)strcat(cpu,"/"); |
429 | strcat(cpu,"cpu/"); |
430 | |
431 | //new trace |
432 | t = g_new(LttTrace, 1); |
433 | sys_description = g_new(LttSystemDescription, 1); |
434 | t->pathname = g_strdup(pathname); |
435 | t->facility_number = 0; |
436 | t->control_tracefile_number = 0; |
437 | t->per_cpu_tracefile_number = 0; |
438 | t->system_description = sys_description; |
439 | t->control_tracefiles = g_ptr_array_new(); |
440 | t->per_cpu_tracefiles = g_ptr_array_new(); |
441 | t->facilities = g_ptr_array_new(); |
442 | getDataEndianType(&(t->my_arch_size), &(t->my_arch_endian)); |
443 | |
444 | //get system description |
445 | strcpy(tmp,info); |
446 | strcat(tmp,"system.xml"); |
447 | getSystemInfo(sys_description, tmp); |
448 | |
b333a76b |
449 | //get facilities info |
450 | getFacilityInfo(t,eventdefs); |
451 | |
963b5f2d |
452 | //get control tracefile info |
453 | getControlFileInfo(t,control); |
454 | |
455 | //get cpu tracefile info |
456 | getCpuFileInfo(t,cpu); |
457 | |
963b5f2d |
458 | return t; |
6cd62ccf |
459 | } |
460 | |
f7afe191 |
461 | /****************************************************************************** |
462 | * When we copy a trace, we want all the opening actions to happen again : |
463 | * the trace will be reopened and totally independant from the original. |
464 | * That's why we call ltt_trace_open. |
465 | *****************************************************************************/ |
466 | LttTrace *ltt_trace_copy(LttTrace *self) |
467 | { |
468 | return ltt_trace_open(self->pathname); |
469 | } |
470 | |
963b5f2d |
471 | void ltt_trace_close(LttTrace *t) |
6cd62ccf |
472 | { |
963b5f2d |
473 | int i; |
474 | LttTracefile * tf; |
475 | LttFacility * f; |
476 | |
477 | g_free(t->pathname); |
478 | |
479 | //free system_description |
480 | g_free(t->system_description->description); |
481 | g_free(t->system_description->node_name); |
482 | g_free(t->system_description->domain_name); |
483 | g_free(t->system_description->kernel_name); |
484 | g_free(t->system_description->kernel_release); |
485 | g_free(t->system_description->kernel_version); |
486 | g_free(t->system_description->machine); |
487 | g_free(t->system_description->processor); |
488 | g_free(t->system_description->hardware_platform); |
489 | g_free(t->system_description->operating_system); |
490 | g_free(t->system_description); |
491 | |
492 | //free control_tracefiles |
493 | for(i=0;i<t->control_tracefile_number;i++){ |
494 | tf = (LttTracefile*)g_ptr_array_index(t->control_tracefiles,i); |
495 | ltt_tracefile_close(tf); |
496 | } |
09ad4797 |
497 | g_ptr_array_free(t->control_tracefiles, TRUE); |
963b5f2d |
498 | |
499 | //free per_cpu_tracefiles |
500 | for(i=0;i<t->per_cpu_tracefile_number;i++){ |
501 | tf = (LttTracefile*)g_ptr_array_index(t->per_cpu_tracefiles,i); |
502 | ltt_tracefile_close(tf); |
503 | } |
09ad4797 |
504 | g_ptr_array_free(t->per_cpu_tracefiles, TRUE); |
963b5f2d |
505 | |
506 | //free facilities |
507 | for(i=0;i<t->facility_number;i++){ |
508 | f = (LttFacility*)g_ptr_array_index(t->facilities,i); |
509 | ltt_facility_close(f); |
510 | } |
09ad4797 |
511 | g_ptr_array_free(t->facilities, TRUE); |
963b5f2d |
512 | |
513 | g_free(t); |
09ad4797 |
514 | |
515 | g_blow_chunks(); |
6cd62ccf |
516 | } |
517 | |
963b5f2d |
518 | |
6cd62ccf |
519 | /***************************************************************************** |
963b5f2d |
520 | *Get the system description of the trace |
6cd62ccf |
521 | ****************************************************************************/ |
522 | |
963b5f2d |
523 | LttSystemDescription *ltt_trace_system_description(LttTrace *t) |
6cd62ccf |
524 | { |
963b5f2d |
525 | return t->system_description; |
6cd62ccf |
526 | } |
527 | |
528 | /***************************************************************************** |
963b5f2d |
529 | * The following functions discover the facilities of the trace |
6cd62ccf |
530 | ****************************************************************************/ |
531 | |
963b5f2d |
532 | unsigned ltt_trace_facility_number(LttTrace *t) |
533 | { |
534 | return (unsigned)(t->facility_number); |
535 | } |
536 | |
537 | LttFacility *ltt_trace_facility_get(LttTrace *t, unsigned i) |
6cd62ccf |
538 | { |
963b5f2d |
539 | return (LttFacility*)g_ptr_array_index(t->facilities, i); |
6cd62ccf |
540 | } |
541 | |
542 | /***************************************************************************** |
543 | *Function name |
963b5f2d |
544 | * ltt_trace_facility_find : find facilities in the trace |
6cd62ccf |
545 | *Input params |
963b5f2d |
546 | * t : the trace |
547 | * name : facility name |
548 | *Output params |
549 | * position : position of the facility in the trace |
6cd62ccf |
550 | *Return value |
963b5f2d |
551 | * : the number of facilities |
6cd62ccf |
552 | ****************************************************************************/ |
553 | |
963b5f2d |
554 | unsigned ltt_trace_facility_find(LttTrace *t, char *name, unsigned *position) |
6cd62ccf |
555 | { |
963b5f2d |
556 | int i, count=0; |
557 | LttFacility * f; |
8a3005f3 |
558 | for(i=0;i<t->facility_number;i++){ |
963b5f2d |
559 | f = (LttFacility*)g_ptr_array_index(t->facilities, i); |
560 | if(strcmp(f->name,name)==0){ |
561 | count++; |
562 | if(count==1) *position = i; |
563 | }else{ |
564 | if(count) break; |
565 | } |
566 | } |
567 | return count; |
6cd62ccf |
568 | } |
569 | |
570 | /***************************************************************************** |
963b5f2d |
571 | * Functions to discover all the event types in the trace |
6cd62ccf |
572 | ****************************************************************************/ |
573 | |
963b5f2d |
574 | unsigned ltt_trace_eventtype_number(LttTrace *t) |
6cd62ccf |
575 | { |
963b5f2d |
576 | int i; |
577 | unsigned count = 0; |
578 | LttFacility * f; |
b445142a |
579 | for(i=0;i<t->facility_number;i++){ |
963b5f2d |
580 | f = (LttFacility*)g_ptr_array_index(t->facilities, i); |
581 | count += f->event_number; |
582 | } |
583 | return count; |
6cd62ccf |
584 | } |
585 | |
963b5f2d |
586 | LttFacility * ltt_trace_facility_by_id(LttTrace * trace, unsigned id) |
6cd62ccf |
587 | { |
963b5f2d |
588 | LttFacility * facility; |
589 | int i; |
590 | for(i=0;i<trace->facility_number;i++){ |
591 | facility = (LttFacility*) g_ptr_array_index(trace->facilities,i); |
592 | if(id >= facility->base_id && |
593 | id < facility->base_id + facility->event_number) |
594 | break; |
595 | } |
596 | if(i==trace->facility_number) return NULL; |
597 | else return facility; |
6cd62ccf |
598 | } |
599 | |
963b5f2d |
600 | LttEventType *ltt_trace_eventtype_get(LttTrace *t, unsigned evId) |
6cd62ccf |
601 | { |
963b5f2d |
602 | LttFacility * f; |
603 | f = ltt_trace_facility_by_id(t,evId); |
604 | if(!f) return NULL; |
605 | return f->events[evId - f->base_id]; |
6cd62ccf |
606 | } |
607 | |
608 | /***************************************************************************** |
963b5f2d |
609 | *There is one "per cpu" tracefile for each CPU, numbered from 0 to |
610 | *the maximum number of CPU in the system. When the number of CPU installed |
611 | *is less than the maximum, some positions are unused. There are also a |
612 | *number of "control" tracefiles (facilities, interrupts...). |
6cd62ccf |
613 | ****************************************************************************/ |
963b5f2d |
614 | unsigned ltt_trace_control_tracefile_number(LttTrace *t) |
6cd62ccf |
615 | { |
963b5f2d |
616 | return t->control_tracefile_number; |
6cd62ccf |
617 | } |
618 | |
963b5f2d |
619 | unsigned ltt_trace_per_cpu_tracefile_number(LttTrace *t) |
6cd62ccf |
620 | { |
963b5f2d |
621 | return t->per_cpu_tracefile_number; |
6cd62ccf |
622 | } |
623 | |
624 | /***************************************************************************** |
963b5f2d |
625 | *It is possible to search for the tracefiles by name or by CPU position. |
626 | *The index within the tracefiles of the same type is returned if found |
627 | *and a negative value otherwise. |
6cd62ccf |
628 | ****************************************************************************/ |
629 | |
963b5f2d |
630 | int ltt_trace_control_tracefile_find(LttTrace *t, char *name) |
6cd62ccf |
631 | { |
963b5f2d |
632 | LttTracefile * tracefile; |
633 | int i; |
634 | for(i=0;i<t->control_tracefile_number;i++){ |
635 | tracefile = (LttTracefile*)g_ptr_array_index(t->control_tracefiles, i); |
636 | if(strcmp(tracefile->name, name)==0)break; |
637 | } |
638 | if(i == t->control_tracefile_number) return -1; |
639 | return i; |
6cd62ccf |
640 | } |
641 | |
963b5f2d |
642 | int ltt_trace_per_cpu_tracefile_find(LttTrace *t, unsigned i) |
6cd62ccf |
643 | { |
963b5f2d |
644 | LttTracefile * tracefile; |
645 | int j, name; |
646 | for(j=0;j<t->per_cpu_tracefile_number;j++){ |
647 | tracefile = (LttTracefile*)g_ptr_array_index(t->per_cpu_tracefiles, j); |
648 | name = atoi(tracefile->name); |
649 | if(name == (int)i)break; |
650 | } |
651 | if(j == t->per_cpu_tracefile_number) return -1; |
652 | return j; |
6cd62ccf |
653 | } |
654 | |
655 | /***************************************************************************** |
963b5f2d |
656 | *Get a specific tracefile |
6cd62ccf |
657 | ****************************************************************************/ |
658 | |
963b5f2d |
659 | LttTracefile *ltt_trace_control_tracefile_get(LttTrace *t, unsigned i) |
6cd62ccf |
660 | { |
5598cfe3 |
661 | return (LttTracefile*)g_ptr_array_index(t->control_tracefiles, i); |
963b5f2d |
662 | } |
663 | |
664 | LttTracefile *ltt_trace_per_cpu_tracefile_get(LttTrace *t, unsigned i) |
665 | { |
666 | return (LttTracefile*)g_ptr_array_index(t->per_cpu_tracefiles, i); |
6cd62ccf |
667 | } |
668 | |
487ad181 |
669 | /***************************************************************************** |
670 | * Get the start time and end time of the trace |
671 | ****************************************************************************/ |
672 | |
673 | void ltt_trace_time_span_get(LttTrace *t, LttTime *start, LttTime *end) |
674 | { |
675 | LttTime startSmall, startTmp, endBig, endTmp; |
676 | int i, j=0; |
677 | LttTracefile * tf; |
678 | |
679 | for(i=0;i<t->control_tracefile_number;i++){ |
680 | tf = g_ptr_array_index(t->control_tracefiles, i); |
681 | readBlock(tf,1); |
682 | startTmp = tf->a_block_start->time; |
683 | readBlock(tf,tf->block_number); |
684 | endTmp = tf->a_block_end->time; |
685 | if(i==0){ |
686 | startSmall = startTmp; |
687 | endBig = endTmp; |
688 | j = 1; |
689 | continue; |
690 | } |
308711e5 |
691 | if(ltt_time_compare(startSmall,startTmp) > 0) startSmall = startTmp; |
692 | if(ltt_time_compare(endBig,endTmp) < 0) endBig = endTmp; |
487ad181 |
693 | } |
694 | |
695 | for(i=0;i<t->per_cpu_tracefile_number;i++){ |
696 | tf = g_ptr_array_index(t->per_cpu_tracefiles, i); |
697 | readBlock(tf,1); |
698 | startTmp = tf->a_block_start->time; |
699 | readBlock(tf,tf->block_number); |
700 | endTmp = tf->a_block_end->time; |
701 | if(j == 0 && i==0){ |
702 | startSmall = startTmp; |
703 | endBig = endTmp; |
704 | continue; |
705 | } |
308711e5 |
706 | if(ltt_time_compare(startSmall,startTmp) > 0) startSmall = startTmp; |
707 | if(ltt_time_compare(endBig,endTmp) < 0) endBig = endTmp; |
487ad181 |
708 | } |
709 | |
710 | *start = startSmall; |
711 | *end = endBig; |
712 | } |
713 | |
714 | |
6cd62ccf |
715 | /***************************************************************************** |
963b5f2d |
716 | *Get the name of a tracefile |
6cd62ccf |
717 | ****************************************************************************/ |
718 | |
963b5f2d |
719 | char *ltt_tracefile_name(LttTracefile *tf) |
6cd62ccf |
720 | { |
963b5f2d |
721 | return tf->name; |
6cd62ccf |
722 | } |
723 | |
80da81ad |
724 | /***************************************************************************** |
725 | * Get the number of blocks in the tracefile |
726 | ****************************************************************************/ |
727 | |
728 | unsigned ltt_tracefile_block_number(LttTracefile *tf) |
729 | { |
730 | return tf->block_number; |
731 | } |
732 | |
6cd62ccf |
733 | /***************************************************************************** |
734 | *Function name |
735 | * ltt_tracefile_seek_time: seek to the first event of the trace with time |
736 | * larger or equal to time |
737 | *Input params |
738 | * t : tracefile |
739 | * time : criteria of the time |
6cd62ccf |
740 | ****************************************************************************/ |
caf7a67a |
741 | void ltt_tracefile_find_time_block(LttTracefile *t, LttTime time, |
742 | int start_block, int end_block) |
743 | { |
744 | int err, tmp_block, s, e; |
745 | int headTime; |
746 | int tailTime; |
747 | |
748 | err=readBlock(t,start_block); |
749 | if(err) g_error("Can not read tracefile: %s\n", t->name); |
750 | if(start_block == end_block)return; |
751 | |
752 | tailTime = ltt_time_compare(t->a_block_end->time, time); |
753 | if(tailTime >= 0) return; |
754 | |
755 | err=readBlock(t,end_block); |
756 | if(err) g_error("Can not read tracefile: %s\n", t->name); |
757 | if(start_block+1 == end_block)return; |
758 | |
759 | headTime = ltt_time_compare(t->a_block_start->time, time); |
760 | if(headTime <= 0 ) return; |
761 | |
762 | tmp_block = (end_block + start_block)/2; |
763 | err=readBlock(t,tmp_block); |
764 | if(err) g_error("Can not read tracefile: %s\n", t->name); |
765 | |
766 | headTime = ltt_time_compare(t->a_block_start->time, time); |
767 | tailTime = ltt_time_compare(t->a_block_end->time, time); |
768 | if(headTime <= 0 && tailTime >= 0) return; |
769 | |
770 | if(headTime > 0){ |
771 | s = start_block + 1; |
772 | e = tmp_block - 1; |
773 | if(s <= e) |
774 | ltt_tracefile_find_time_block(t, time, s, e); |
775 | else return; |
776 | } |
777 | |
778 | if(tailTime < 0){ |
779 | s = tmp_block + 1; |
780 | e = end_block - 1; |
781 | if(s <= e) |
782 | ltt_tracefile_find_time_block(t, time, s, e); |
783 | else return; |
784 | } |
785 | } |
786 | |
787 | void ltt_tracefile_backward_find_time_block(LttTracefile *t, LttTime time) |
788 | { |
789 | int t_time, h_time, err; |
790 | err=readBlock(t,t->which_block-1); |
791 | if(err) g_error("Can not read tracefile: %s\n", t->name); |
792 | h_time = ltt_time_compare(t->a_block_start->time, time); |
793 | t_time = ltt_time_compare(t->a_block_end->time, time); |
794 | if(h_time == 0){ |
795 | int tmp; |
796 | if(t->which_block == 1) return; |
797 | err=readBlock(t,t->which_block-1); |
798 | if(err) g_error("Can not read tracefile: %s\n", t->name); |
799 | tmp = ltt_time_compare(t->a_block_end->time, time); |
800 | if(tmp == 0) return ltt_tracefile_seek_time(t, time); |
801 | err=readBlock(t,t->which_block+1); |
802 | if(err) g_error("Can not read tracefile: %s\n", t->name); |
803 | }else if(h_time > 0){ |
804 | ltt_tracefile_find_time_block(t, time, 1, t->which_block); |
805 | return ltt_tracefile_seek_time(t, time) ; |
806 | }else{ |
807 | if(t_time >= 0) return ltt_tracefile_seek_time(t, time); |
808 | err=readBlock(t,t->which_block+1); |
809 | if(err) g_error("Can not read tracefile: %s\n", t->name); |
810 | } |
811 | } |
6cd62ccf |
812 | |
963b5f2d |
813 | void ltt_tracefile_seek_time(LttTracefile *t, LttTime time) |
6cd62ccf |
814 | { |
815 | int err; |
963b5f2d |
816 | LttTime lttTime; |
308711e5 |
817 | int headTime = ltt_time_compare(t->a_block_start->time, time); |
818 | int tailTime = ltt_time_compare(t->a_block_end->time, time); |
62e55dd6 |
819 | LttEvent * ev; |
820 | |
6cd62ccf |
821 | if(headTime < 0 && tailTime > 0){ |
308711e5 |
822 | if(ltt_time_compare(t->a_block_end->time, t->current_event_time) !=0) { |
db55eaae |
823 | lttTime = getEventTime(t); |
308711e5 |
824 | err = ltt_time_compare(lttTime, time); |
db55eaae |
825 | if(err > 0){ |
308711e5 |
826 | if(t->which_event==2 || (&t->prev_event_time,&time)<0){ |
1a3b8cbd |
827 | return; |
db55eaae |
828 | }else{ |
829 | updateTracefile(t); |
830 | return ltt_tracefile_seek_time(t, time); |
1a3b8cbd |
831 | } |
db55eaae |
832 | }else if(err < 0){ |
833 | while(1){ |
834 | ev = ltt_tracefile_read(t); |
835 | if(ev == NULL){ |
836 | g_print("End of file\n"); |
837 | return; |
838 | } |
839 | lttTime = getEventTime(t); |
308711e5 |
840 | err = ltt_time_compare(lttTime, time); |
db55eaae |
841 | if(err >= 0)return; |
842 | } |
843 | }else return; |
844 | }else{//we are at the end of the block |
845 | updateTracefile(t); |
846 | return ltt_tracefile_seek_time(t, time); |
847 | } |
e37c1372 |
848 | }else if(headTime >= 0){ |
6cd62ccf |
849 | if(t->which_block == 1){ |
850 | updateTracefile(t); |
851 | }else{ |
1ee6a9af |
852 | if(ltt_time_compare(t->prev_block_end_time, time) >= 0 || |
853 | (t->prev_block_end_time.tv_sec == 0 && |
854 | t->prev_block_end_time.tv_nsec == 0 )){ |
caf7a67a |
855 | ltt_tracefile_backward_find_time_block(t, time); |
6cd62ccf |
856 | }else{ |
857 | updateTracefile(t); |
858 | } |
859 | } |
40331ba8 |
860 | }else if(tailTime < 0){ |
6cd62ccf |
861 | if(t->which_block != t->block_number){ |
caf7a67a |
862 | ltt_tracefile_find_time_block(t, time, t->which_block+1, t->block_number); |
863 | return ltt_tracefile_seek_time(t, time); |
963b5f2d |
864 | }else { |
25975c93 |
865 | g_print("End of file\n"); |
963b5f2d |
866 | return; |
867 | } |
40331ba8 |
868 | }else if(tailTime == 0){ |
e37c1372 |
869 | t->cur_event_pos = t->last_event_pos; |
62e55dd6 |
870 | t->current_event_time = time; |
871 | t->cur_heart_beat_number = 0; |
872 | t->prev_event_time.tv_sec = 0; |
873 | t->prev_event_time.tv_nsec = 0; |
40331ba8 |
874 | return; |
6cd62ccf |
875 | } |
6cd62ccf |
876 | } |
877 | |
80da81ad |
878 | /***************************************************************************** |
879 | * Seek to the first event with position equal or larger to ep |
880 | ****************************************************************************/ |
881 | |
882 | void ltt_tracefile_seek_position(LttTracefile *t, LttEventPosition *ep) |
883 | { |
884 | //if we are at the right place, just return |
885 | if(t->which_block == ep->block_num && t->which_event == ep->event_num) |
886 | return; |
887 | |
888 | if(t->which_block == ep->block_num) updateTracefile(t); |
889 | else readBlock(t,ep->block_num); |
890 | |
891 | //event offset is availiable |
892 | if(ep->old_position){ |
893 | t->cur_heart_beat_number = ep->heart_beat_number; |
894 | t->cur_event_pos = t->buffer + ep->event_offset; |
895 | return; |
896 | } |
897 | |
898 | //only block number and event index are availiable |
899 | while(t->which_event < ep->event_num) ltt_tracefile_read(t); |
900 | |
901 | return; |
902 | } |
903 | |
6cd62ccf |
904 | /***************************************************************************** |
905 | *Function name |
40331ba8 |
906 | * ltt_tracefile_read : read the current event, set the pointer to the next |
6cd62ccf |
907 | *Input params |
908 | * t : tracefile |
909 | *Return value |
963b5f2d |
910 | * LttEvent * : an event to be processed |
6cd62ccf |
911 | ****************************************************************************/ |
912 | |
963b5f2d |
913 | LttEvent *ltt_tracefile_read(LttTracefile *t) |
6cd62ccf |
914 | { |
7525f9e5 |
915 | LttEvent * lttEvent = &t->an_event; |
963b5f2d |
916 | int err; |
6cd62ccf |
917 | |
bdc36259 |
918 | if(t->cur_event_pos == t->buffer + t->block_size){ |
919 | if(t->which_block == t->block_number){ |
bdc36259 |
920 | return NULL; |
921 | } |
922 | err = readBlock(t, t->which_block + 1); |
923 | if(err)g_error("Can not read tracefile"); |
924 | } |
925 | |
cbd41522 |
926 | lttEvent->event_id = (int)(*(guint16 *)(t->cur_event_pos)); |
963b5f2d |
927 | if(lttEvent->event_id == TRACE_TIME_HEARTBEAT) |
928 | t->cur_heart_beat_number++; |
6cd62ccf |
929 | |
40331ba8 |
930 | t->prev_event_time = t->current_event_time; |
62e55dd6 |
931 | // t->current_event_time = getEventTime(t); |
6cd62ccf |
932 | |
cbd41522 |
933 | lttEvent->time_delta = *(guint32 *)(t->cur_event_pos + EVENT_ID_SIZE); |
963b5f2d |
934 | lttEvent->event_time = t->current_event_time; |
935 | |
6cd62ccf |
936 | lttEvent->tracefile = t; |
937 | lttEvent->data = t->cur_event_pos + EVENT_HEADER_SIZE; |
908f42fa |
938 | lttEvent->which_block = t->which_block; |
939 | lttEvent->which_event = t->which_event; |
6cd62ccf |
940 | |
40331ba8 |
941 | //update the fields of the current event and go to the next event |
942 | err = skipEvent(t); |
40331ba8 |
943 | if(err == ERANGE) g_error("event id is out of range\n"); |
40331ba8 |
944 | |
e4eced0f |
945 | lttEvent->event_cycle_count = t->cur_cycle_count; |
946 | |
6cd62ccf |
947 | return lttEvent; |
948 | } |
949 | |
950 | /**************************************************************************** |
951 | *Function name |
952 | * readFile : wrap function to read from a file |
953 | *Input Params |
954 | * fd : file descriptor |
955 | * buf : buf to contain the content |
956 | * size : number of bytes to be read |
957 | * mesg : message to be printed if some thing goes wrong |
958 | *return value |
959 | * 0 : success |
960 | * EIO : can not read from the file |
961 | ****************************************************************************/ |
962 | |
963 | int readFile(int fd, void * buf, size_t size, char * mesg) |
964 | { |
965 | ssize_t nbBytes; |
966 | nbBytes = read(fd, buf, size); |
967 | if(nbBytes != size){ |
968 | printf("%s\n",mesg); |
969 | return EIO; |
970 | } |
971 | return 0; |
972 | } |
973 | |
974 | /**************************************************************************** |
975 | *Function name |
976 | * readBlock : read a block from the file |
977 | *Input Params |
978 | * lttdes : ltt trace file |
979 | * whichBlock : the block which will be read |
980 | *return value |
981 | * 0 : success |
982 | * EINVAL : lseek fail |
983 | * EIO : can not read from the file |
984 | ****************************************************************************/ |
985 | |
963b5f2d |
986 | int readBlock(LttTracefile * tf, int whichBlock) |
6cd62ccf |
987 | { |
988 | off_t nbBytes; |
cbd41522 |
989 | guint32 lostSize; |
6cd62ccf |
990 | |
991 | if(whichBlock - tf->which_block == 1 && tf->which_block != 0){ |
963b5f2d |
992 | tf->prev_block_end_time = tf->a_block_end->time; |
40331ba8 |
993 | tf->prev_event_time = tf->a_block_end->time; |
6cd62ccf |
994 | }else{ |
995 | tf->prev_block_end_time.tv_sec = 0; |
996 | tf->prev_block_end_time.tv_nsec = 0; |
40331ba8 |
997 | tf->prev_event_time.tv_sec = 0; |
998 | tf->prev_event_time.tv_nsec = 0; |
6cd62ccf |
999 | } |
6cd62ccf |
1000 | |
963b5f2d |
1001 | nbBytes=lseek(tf->fd,(off_t)((whichBlock-1)*tf->block_size), SEEK_SET); |
6cd62ccf |
1002 | if(nbBytes == -1) return EINVAL; |
1003 | |
963b5f2d |
1004 | if(readFile(tf->fd,tf->buffer,tf->block_size,"Unable to read a block")) |
1005 | return EIO; |
6cd62ccf |
1006 | |
963b5f2d |
1007 | tf->a_block_start=(BlockStart *) (tf->buffer + EVENT_HEADER_SIZE); |
cbd41522 |
1008 | lostSize = *(guint32 *)(tf->buffer + tf->block_size - sizeof(guint32)); |
963b5f2d |
1009 | tf->a_block_end=(BlockEnd *)(tf->buffer + tf->block_size - |
1010 | lostSize + EVENT_HEADER_SIZE); |
e37c1372 |
1011 | tf->last_event_pos = tf->buffer + tf->block_size - lostSize; |
6cd62ccf |
1012 | |
6cd62ccf |
1013 | tf->which_block = whichBlock; |
963b5f2d |
1014 | tf->which_event = 1; |
40331ba8 |
1015 | tf->cur_event_pos = tf->buffer;//the beginning of the block, block start ev |
6cd62ccf |
1016 | tf->cur_heart_beat_number = 0; |
963b5f2d |
1017 | |
6cd62ccf |
1018 | getCyclePerNsec(tf); |
1019 | |
62e55dd6 |
1020 | tf->current_event_time = getEventTime(tf); |
40331ba8 |
1021 | |
6cd62ccf |
1022 | return 0; |
1023 | } |
1024 | |
1025 | /***************************************************************************** |
1026 | *Function name |
1027 | * updateTracefile : reinitialize the info of the block which is already |
1028 | * in the buffer |
1029 | *Input params |
1030 | * tf : tracefile |
1031 | ****************************************************************************/ |
1032 | |
963b5f2d |
1033 | void updateTracefile(LttTracefile * tf) |
6cd62ccf |
1034 | { |
963b5f2d |
1035 | tf->which_event = 1; |
40331ba8 |
1036 | tf->cur_event_pos = tf->buffer; |
62e55dd6 |
1037 | tf->current_event_time = getEventTime(tf); |
6cd62ccf |
1038 | tf->cur_heart_beat_number = 0; |
1039 | |
1040 | tf->prev_event_time.tv_sec = 0; |
1041 | tf->prev_event_time.tv_nsec = 0; |
1042 | } |
1043 | |
1044 | /***************************************************************************** |
1045 | *Function name |
1046 | * skipEvent : go to the next event, update the fields of the current event |
1047 | *Input params |
1048 | * t : tracefile |
1049 | *return value |
1050 | * 0 : success |
6cd62ccf |
1051 | * ERANGE : event id is out of range |
1052 | ****************************************************************************/ |
1053 | |
963b5f2d |
1054 | int skipEvent(LttTracefile * t) |
6cd62ccf |
1055 | { |
1056 | int evId, err; |
1057 | void * evData; |
963b5f2d |
1058 | LttEventType * evT; |
1059 | LttField * rootFld; |
6cd62ccf |
1060 | |
cbd41522 |
1061 | evId = (int)(*(guint16 *)(t->cur_event_pos)); |
6cd62ccf |
1062 | evData = t->cur_event_pos + EVENT_HEADER_SIZE; |
6cd62ccf |
1063 | |
908f42fa |
1064 | evT = ltt_trace_eventtype_get(t->trace,(unsigned)evId); |
47a166fc |
1065 | |
908f42fa |
1066 | if(evT) rootFld = evT->root_field; |
1067 | else return ERANGE; |
6cd62ccf |
1068 | |
908f42fa |
1069 | if(rootFld){ |
1070 | //event has string/sequence or the last event is not the same event |
1071 | if((evT->latest_block!=t->which_block || evT->latest_event!=t->which_event) |
1072 | && rootFld->field_fixed == 0){ |
1073 | setFieldsOffset(t, evT, evData, t->trace); |
47a166fc |
1074 | } |
908f42fa |
1075 | t->cur_event_pos += EVENT_HEADER_SIZE + rootFld->field_size; |
1076 | }else t->cur_event_pos += EVENT_HEADER_SIZE; |
1077 | |
1078 | evT->latest_block = t->which_block; |
1079 | evT->latest_event = t->which_event; |
1080 | |
6cd62ccf |
1081 | //the next event is in the next block |
963b5f2d |
1082 | if(evId == TRACE_BLOCK_END){ |
bdc36259 |
1083 | t->cur_event_pos = t->buffer + t->block_size; |
6cd62ccf |
1084 | }else{ |
1085 | t->which_event++; |
62e55dd6 |
1086 | t->current_event_time = getEventTime(t); |
6cd62ccf |
1087 | } |
1088 | |
1089 | return 0; |
1090 | } |
1091 | |
1092 | /***************************************************************************** |
1093 | *Function name |
1094 | * getCyclePerNsec : calculate cycles per nsec for current block |
1095 | *Input Params |
1096 | * t : tracefile |
1097 | ****************************************************************************/ |
1098 | |
963b5f2d |
1099 | void getCyclePerNsec(LttTracefile * t) |
6cd62ccf |
1100 | { |
963b5f2d |
1101 | LttTime lBufTotalTime; /* Total time for this buffer */ |
1102 | LttCycleCount lBufTotalNSec; /* Total time for this buffer in nsecs */ |
1103 | LttCycleCount lBufTotalCycle;/* Total cycles for this buffer */ |
6cd62ccf |
1104 | |
1105 | /* Calculate the total time for this buffer */ |
308711e5 |
1106 | lBufTotalTime = ltt_time_sub(t->a_block_end->time, t->a_block_start->time); |
6cd62ccf |
1107 | |
1108 | /* Calculate the total cycles for this bufffer */ |
e4eced0f |
1109 | lBufTotalCycle = t->a_block_end->cycle_count; |
1110 | lBufTotalCycle -= t->a_block_start->cycle_count; |
6cd62ccf |
1111 | |
1112 | /* Convert the total time to nsecs */ |
e4eced0f |
1113 | lBufTotalNSec = lBufTotalTime.tv_sec; |
308711e5 |
1114 | lBufTotalNSec *= NANOSECONDS_PER_SECOND; |
e4eced0f |
1115 | lBufTotalNSec += lBufTotalTime.tv_nsec; |
6cd62ccf |
1116 | |
1117 | t->cycle_per_nsec = (double)lBufTotalCycle / (double)lBufTotalNSec; |
1118 | } |
1119 | |
1120 | /**************************************************************************** |
1121 | *Function name |
1122 | * getEventTime : obtain the time of an event |
1123 | *Input params |
1124 | * tf : tracefile |
1125 | *Return value |
963b5f2d |
1126 | * LttTime : the time of the event |
6cd62ccf |
1127 | ****************************************************************************/ |
1128 | |
963b5f2d |
1129 | LttTime getEventTime(LttTracefile * tf) |
6cd62ccf |
1130 | { |
963b5f2d |
1131 | LttTime time; |
1132 | LttCycleCount cycle_count; // cycle count for the current event |
1133 | LttCycleCount lEventTotalCycle; // Total cycles from start for event |
1134 | double lEventNSec; // Total usecs from start for event |
1135 | LttTime lTimeOffset; // Time offset in struct LttTime |
cbd41522 |
1136 | guint16 evId; |
1137 | gint64 nanoSec, tmpCycleCount = (((guint64)1)<<32); |
e4eced0f |
1138 | static LttCycleCount preCycleCount = 0; |
1139 | static int count = 0; |
1140 | |
cbd41522 |
1141 | evId = *(guint16 *)tf->cur_event_pos; |
e4eced0f |
1142 | if(evId == TRACE_BLOCK_START){ |
1143 | count = 0; |
1144 | preCycleCount = 0; |
1145 | tf->cur_cycle_count = tf->a_block_start->cycle_count; |
40331ba8 |
1146 | return tf->a_block_start->time; |
e4eced0f |
1147 | }else if(evId == TRACE_BLOCK_END){ |
1148 | count = 0; |
1149 | preCycleCount = 0; |
1150 | tf->cur_cycle_count = tf->a_block_end->cycle_count; |
40331ba8 |
1151 | return tf->a_block_end->time; |
e4eced0f |
1152 | } |
40331ba8 |
1153 | |
e4eced0f |
1154 | // Calculate total time in cycles from start of buffer for this event |
cbd41522 |
1155 | cycle_count = (LttCycleCount)*(guint32 *)(tf->cur_event_pos + EVENT_ID_SIZE); |
e4eced0f |
1156 | |
1157 | if(cycle_count < preCycleCount)count++; |
1158 | preCycleCount = cycle_count; |
1159 | cycle_count += tmpCycleCount * count; |
1160 | |
1161 | if(tf->cur_heart_beat_number > count) |
1162 | cycle_count += tmpCycleCount * (tf->cur_heart_beat_number - count); |
1163 | |
1164 | tf->cur_cycle_count = cycle_count; |
1165 | |
1166 | lEventTotalCycle = cycle_count; |
1167 | lEventTotalCycle -= tf->a_block_start->cycle_count; |
6cd62ccf |
1168 | |
963b5f2d |
1169 | // Convert it to nsecs |
6cd62ccf |
1170 | lEventNSec = lEventTotalCycle / tf->cycle_per_nsec; |
e4eced0f |
1171 | nanoSec = lEventNSec; |
1172 | |
963b5f2d |
1173 | // Determine offset in struct LttTime |
308711e5 |
1174 | lTimeOffset.tv_nsec = nanoSec % NANOSECONDS_PER_SECOND; |
1175 | lTimeOffset.tv_sec = nanoSec / NANOSECONDS_PER_SECOND; |
6cd62ccf |
1176 | |
308711e5 |
1177 | time = ltt_time_add(tf->a_block_start->time, lTimeOffset); |
e4eced0f |
1178 | |
6cd62ccf |
1179 | return time; |
1180 | } |
1181 | |
1182 | /***************************************************************************** |
1183 | *Function name |
1184 | * setFieldsOffset : set offset of the fields |
1185 | *Input params |
1186 | * tracefile : opened trace file |
1187 | * evT : the event type |
1188 | * evD : event data, it may be NULL |
1189 | ****************************************************************************/ |
1190 | |
40331ba8 |
1191 | void setFieldsOffset(LttTracefile *tf,LttEventType *evT,void *evD,LttTrace* t) |
6cd62ccf |
1192 | { |
963b5f2d |
1193 | LttField * rootFld = evT->root_field; |
6cd62ccf |
1194 | // rootFld->base_address = evD; |
1195 | |
8710c6c7 |
1196 | if(rootFld) |
1197 | rootFld->field_size = getFieldtypeSize(tf, evT, 0,0,rootFld, evD,t); |
6cd62ccf |
1198 | } |
1199 | |
1200 | /***************************************************************************** |
1201 | *Function name |
1202 | * getFieldtypeSize: get the size of the field type (primitive type) |
1203 | *Input params |
1204 | * tracefile : opened trace file |
1205 | * evT : event type |
1206 | * offsetRoot : offset from the root |
1207 | * offsetParent : offset from the parrent |
1208 | * fld : field |
1209 | * evD : event data, it may be NULL |
1210 | *Return value |
1211 | * int : size of the field |
1212 | ****************************************************************************/ |
1213 | |
963b5f2d |
1214 | int getFieldtypeSize(LttTracefile * t, LttEventType * evT, int offsetRoot, |
40331ba8 |
1215 | int offsetParent, LttField * fld, void *evD, LttTrace *trace) |
6cd62ccf |
1216 | { |
1217 | int size, size1, element_number, i, offset1, offset2; |
963b5f2d |
1218 | LttType * type = fld->field_type; |
6cd62ccf |
1219 | |
8710c6c7 |
1220 | if(t){ |
963b5f2d |
1221 | if(evT->latest_block==t->which_block && evT->latest_event==t->which_event){ |
1222 | return fld->field_size; |
1223 | } |
1224 | } |
6cd62ccf |
1225 | |
1226 | if(fld->field_fixed == 1){ |
1227 | if(fld == evT->root_field) return fld->field_size; |
1228 | } |
1229 | |
1230 | if(type->type_class != LTT_STRUCT && type->type_class != LTT_ARRAY && |
1231 | type->type_class != LTT_SEQUENCE && type->type_class != LTT_STRING){ |
1232 | if(fld->field_fixed == -1){ |
40331ba8 |
1233 | size = (int) ltt_type_size(trace, type); |
6cd62ccf |
1234 | fld->field_fixed = 1; |
1235 | }else size = fld->field_size; |
1236 | |
1237 | }else if(type->type_class == LTT_ARRAY){ |
1238 | element_number = (int) type->element_number; |
1239 | if(fld->field_fixed == -1){ |
40331ba8 |
1240 | size = getFieldtypeSize(t, evT, offsetRoot,0,fld->child[0], NULL, trace); |
6cd62ccf |
1241 | if(size == 0){ //has string or sequence |
1242 | fld->field_fixed = 0; |
1243 | }else{ |
1244 | fld->field_fixed = 1; |
1245 | size *= element_number; |
1246 | } |
1247 | }else if(fld->field_fixed == 0){// has string or sequence |
1248 | size = 0; |
1249 | for(i=0;i<element_number;i++){ |
1250 | size += getFieldtypeSize(t, evT, offsetRoot+size,size, |
40331ba8 |
1251 | fld->child[0], evD+size, trace); |
6cd62ccf |
1252 | } |
1253 | }else size = fld->field_size; |
1254 | |
1255 | }else if(type->type_class == LTT_SEQUENCE){ |
40331ba8 |
1256 | size1 = (int) ltt_type_size(trace, type); |
6cd62ccf |
1257 | if(fld->field_fixed == -1){ |
908f42fa |
1258 | fld->sequ_number_size = size1; |
6cd62ccf |
1259 | fld->field_fixed = 0; |
40331ba8 |
1260 | size = getFieldtypeSize(t, evT, offsetRoot,0,fld->child[0], NULL, trace); |
6cd62ccf |
1261 | fld->element_size = size; |
1262 | }else{//0: sequence |
1263 | element_number = getIntNumber(size1,evD); |
1264 | type->element_number = element_number; |
1265 | if(fld->element_size > 0){ |
1266 | size = element_number * fld->element_size; |
1267 | }else{//sequence has string or sequence |
1268 | size = 0; |
1269 | for(i=0;i<element_number;i++){ |
1270 | size += getFieldtypeSize(t, evT, offsetRoot+size+size1,size+size1, |
40331ba8 |
1271 | fld->child[0], evD+size+size1, trace); |
6cd62ccf |
1272 | } |
1273 | } |
1274 | size += size1; |
1275 | } |
1276 | |
1277 | }else if(type->type_class == LTT_STRING){ |
1278 | size = 0; |
1279 | if(fld->field_fixed == -1){ |
1280 | fld->field_fixed = 0; |
1281 | }else{//0: string |
47a166fc |
1282 | size = strlen((char*)evD) + 1; //include end : '\0' |
6cd62ccf |
1283 | } |
1284 | |
1285 | }else if(type->type_class == LTT_STRUCT){ |
1286 | element_number = (int) type->element_number; |
1287 | size = 0; |
1288 | if(fld->field_fixed == -1){ |
1289 | offset1 = offsetRoot; |
1290 | offset2 = 0; |
1291 | for(i=0;i<element_number;i++){ |
40331ba8 |
1292 | size1=getFieldtypeSize(t, evT,offset1,offset2, fld->child[i], NULL, trace); |
6cd62ccf |
1293 | if(size1 > 0 && size >= 0){ |
1294 | size += size1; |
1295 | if(offset1 >= 0) offset1 += size1; |
1296 | offset2 += size1; |
1297 | }else{ |
1298 | size = -1; |
1299 | offset1 = -1; |
1300 | offset2 = -1; |
1301 | } |
1302 | } |
1303 | if(size == -1){ |
1304 | fld->field_fixed = 0; |
1305 | size = 0; |
1306 | }else fld->field_fixed = 1; |
1307 | }else if(fld->field_fixed == 0){ |
1308 | offset1 = offsetRoot; |
1309 | offset2 = 0; |
1310 | for(i=0;i<element_number;i++){ |
40331ba8 |
1311 | size=getFieldtypeSize(t,evT,offset1,offset2,fld->child[i],evD+offset2, trace); |
6cd62ccf |
1312 | offset1 += size; |
1313 | offset2 += size; |
1314 | } |
1315 | size = offset2; |
1316 | }else size = fld->field_size; |
1317 | } |
1318 | |
1319 | fld->offset_root = offsetRoot; |
1320 | fld->offset_parent = offsetParent; |
1321 | if(!evD){ |
1322 | fld->fixed_root = (offsetRoot==-1) ? 0 : 1; |
1323 | fld->fixed_parent = (offsetParent==-1) ? 0 : 1; |
1324 | } |
1325 | fld->field_size = size; |
1326 | |
1327 | return size; |
1328 | } |
1329 | |
6cd62ccf |
1330 | |
1331 | /***************************************************************************** |
1332 | *Function name |
1333 | * getIntNumber : get an integer number |
1334 | *Input params |
1335 | * size : the size of the integer |
1336 | * evD : the event data |
1337 | *Return value |
1338 | * int : an integer |
1339 | ****************************************************************************/ |
1340 | |
1341 | int getIntNumber(int size, void *evD) |
1342 | { |
cbd41522 |
1343 | gint64 i; |
1344 | if(size == 1) i = *(gint8 *)evD; |
1345 | else if(size == 2) i = *(gint16 *)evD; |
1346 | else if(size == 4) i = *(gint32 *)evD; |
1347 | else if(size == 8) i = *(gint64 *)evD; |
6cd62ccf |
1348 | |
1349 | return (int) i; |
1350 | } |
1351 | |
1352 | /***************************************************************************** |
1353 | *Function name |
1354 | * getDataEndianType : get the data type size and endian type of the local |
1355 | * machine |
1356 | *Input params |
1357 | * size : size of data type |
1358 | * endian : endian type, little or big |
1359 | ****************************************************************************/ |
1360 | |
963b5f2d |
1361 | void getDataEndianType(LttArchSize * size, LttArchEndian * endian) |
6cd62ccf |
1362 | { |
1363 | int i = 1; |
1364 | char c = (char) i; |
1365 | int sizeInt=sizeof(int), sizeLong=sizeof(long), sizePointer=sizeof(void *); |
1366 | |
1367 | if(c == 1) *endian = LTT_LITTLE_ENDIAN; |
1368 | else *endian = LTT_BIG_ENDIAN; |
1369 | |
1370 | if(sizeInt == 2 && sizeLong == 4 && sizePointer == 4) |
1371 | *size = LTT_LP32; |
1372 | else if(sizeInt == 4 && sizeLong == 4 && sizePointer == 4) |
1373 | *size = LTT_ILP32; |
1374 | else if(sizeInt == 4 && sizeLong == 8 && sizePointer == 8) |
1375 | *size = LTT_LP64; |
1376 | else if(sizeInt == 8 && sizeLong == 8 && sizePointer == 8) |
1377 | *size = LTT_ILP64; |
1378 | else *size = LTT_UNKNOWN; |
1379 | } |
1380 | |