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 | |
6cd62ccf |
19 | #include <stdio.h> |
20 | #include <fcntl.h> |
8d1e6362 |
21 | #include <string.h> |
22 | #include <dirent.h> |
6cd62ccf |
23 | #include <sys/stat.h> |
24 | #include <sys/types.h> |
8d1e6362 |
25 | #include <errno.h> |
26 | #include <unistd.h> |
6cd62ccf |
27 | |
ef35d837 |
28 | // For realpath |
29 | #include <limits.h> |
30 | #include <stdlib.h> |
31 | |
32 | |
6cd62ccf |
33 | #include "parser.h" |
a5dcde2f |
34 | #include <ltt/ltt.h> |
35 | #include "ltt-private.h" |
963b5f2d |
36 | #include <ltt/trace.h> |
a5dcde2f |
37 | #include <ltt/facility.h> |
c02ea99f |
38 | #include <ltt/event.h> |
8d1e6362 |
39 | #include <ltt/type.h> |
6cd62ccf |
40 | |
963b5f2d |
41 | #define DIR_NAME_SIZE 256 |
51b5991e |
42 | #define __UNUSED__ __attribute__((__unused__)) |
6cd62ccf |
43 | |
a1062ddd |
44 | #define g_info(format...) g_log (G_LOG_DOMAIN, G_LOG_LEVEL_INFO, format) |
45 | #define g_debug(format...) g_log (G_LOG_DOMAIN, G_LOG_LEVEL_DEBUG, format) |
46 | |
8959a0c8 |
47 | |
48 | /* obtain the time of an event */ |
49 | |
50 | static inline LttTime getEventTime(LttTracefile * tf); |
51 | |
52 | |
6cd62ccf |
53 | /* set the offset of the fields belonging to the event, |
54 | need the information of the archecture */ |
40331ba8 |
55 | void setFieldsOffset(LttTracefile *tf,LttEventType *evT,void *evD,LttTrace *t); |
6cd62ccf |
56 | |
57 | /* get the size of the field type according to the archtecture's |
58 | size and endian type(info of the archecture) */ |
40331ba8 |
59 | int getFieldtypeSize(LttTracefile * tf, LttEventType * evT, int offsetRoot, |
60 | int offsetParent, LttField *fld, void *evD, LttTrace* t); |
6cd62ccf |
61 | |
62 | /* read a fixed size or a block information from the file (fd) */ |
63 | int readFile(int fd, void * buf, size_t size, char * mesg); |
963b5f2d |
64 | int readBlock(LttTracefile * tf, int whichBlock); |
6cd62ccf |
65 | |
66 | /* calculate cycles per nsec for current block */ |
963b5f2d |
67 | void getCyclePerNsec(LttTracefile * t); |
6cd62ccf |
68 | |
69 | /* reinitialize the info of the block which is already in the buffer */ |
963b5f2d |
70 | void updateTracefile(LttTracefile * tf); |
6cd62ccf |
71 | |
72 | /* go to the next event */ |
963b5f2d |
73 | int skipEvent(LttTracefile * t); |
6cd62ccf |
74 | |
6cd62ccf |
75 | |
43da6a59 |
76 | /* Functions to parse system.xml file (using glib xml parser) */ |
51b5991e |
77 | static void parser_start_element (GMarkupParseContext __UNUSED__ *context, |
43da6a59 |
78 | const gchar *element_name, |
79 | const gchar **attribute_names, |
80 | const gchar **attribute_values, |
81 | gpointer user_data, |
82 | GError **error) |
83 | { |
84 | int i=0; |
85 | LttSystemDescription* des = (LttSystemDescription* )user_data; |
86 | if(strcmp("system", element_name)){ |
2a74fbf4 |
87 | *error = g_error_new(G_MARKUP_ERROR, |
88 | G_LOG_LEVEL_WARNING, |
89 | "This is not system.xml file"); |
90 | return; |
43da6a59 |
91 | } |
92 | |
93 | while(attribute_names[i]){ |
94 | if(strcmp("node_name", attribute_names[i])==0){ |
95 | des->node_name = g_strdup(attribute_values[i]); |
96 | }else if(strcmp("domainname", attribute_names[i])==0){ |
97 | des->domain_name = g_strdup(attribute_values[i]); |
98 | }else if(strcmp("cpu", attribute_names[i])==0){ |
99 | des->nb_cpu = atoi(attribute_values[i]); |
100 | }else if(strcmp("arch_size", attribute_names[i])==0){ |
101 | if(strcmp(attribute_values[i],"LP32") == 0) des->size = LTT_LP32; |
102 | else if(strcmp(attribute_values[i],"ILP32") == 0) des->size = LTT_ILP32; |
103 | else if(strcmp(attribute_values[i],"LP64") == 0) des->size = LTT_LP64; |
104 | else if(strcmp(attribute_values[i],"ILP64") == 0) des->size = LTT_ILP64; |
105 | else if(strcmp(attribute_values[i],"UNKNOWN") == 0) des->size = LTT_UNKNOWN; |
106 | }else if(strcmp("endian", attribute_names[i])==0){ |
107 | if(strcmp(attribute_values[i],"LITTLE_ENDIAN") == 0) |
108 | des->endian = LTT_LITTLE_ENDIAN; |
109 | else if(strcmp(attribute_values[i],"BIG_ENDIAN") == 0) |
110 | des->endian = LTT_BIG_ENDIAN; |
111 | }else if(strcmp("kernel_name", attribute_names[i])==0){ |
112 | des->kernel_name = g_strdup(attribute_values[i]); |
113 | }else if(strcmp("kernel_release", attribute_names[i])==0){ |
114 | des->kernel_release = g_strdup(attribute_values[i]); |
115 | }else if(strcmp("kernel_version", attribute_names[i])==0){ |
116 | des->kernel_version = g_strdup(attribute_values[i]); |
117 | }else if(strcmp("machine", attribute_names[i])==0){ |
118 | des->machine = g_strdup(attribute_values[i]); |
119 | }else if(strcmp("processor", attribute_names[i])==0){ |
120 | des->processor = g_strdup(attribute_values[i]); |
121 | }else if(strcmp("hardware_platform", attribute_names[i])==0){ |
122 | des->hardware_platform = g_strdup(attribute_values[i]); |
123 | }else if(strcmp("operating_system", attribute_names[i])==0){ |
124 | des->operating_system = g_strdup(attribute_values[i]); |
125 | }else if(strcmp("ltt_major_version", attribute_names[i])==0){ |
126 | des->ltt_major_version = atoi(attribute_values[i]); |
127 | }else if(strcmp("ltt_minor_version", attribute_names[i])==0){ |
128 | des->ltt_minor_version = atoi(attribute_values[i]); |
129 | }else if(strcmp("ltt_block_size", attribute_names[i])==0){ |
130 | des->ltt_block_size = atoi(attribute_values[i]); |
131 | }else{ |
2a74fbf4 |
132 | *error = g_error_new(G_MARKUP_ERROR, |
133 | G_LOG_LEVEL_WARNING, |
134 | "Not a valid attribute"); |
135 | return; |
43da6a59 |
136 | } |
137 | i++; |
138 | } |
139 | } |
140 | |
51b5991e |
141 | static void parser_characters (GMarkupParseContext __UNUSED__ *context, |
43da6a59 |
142 | const gchar *text, |
51b5991e |
143 | gsize __UNUSED__ text_len, |
43da6a59 |
144 | gpointer user_data, |
51b5991e |
145 | GError __UNUSED__ **error) |
43da6a59 |
146 | { |
147 | LttSystemDescription* des = (LttSystemDescription* )user_data; |
148 | des->description = g_strdup(text); |
149 | } |
150 | |
151 | |
6cd62ccf |
152 | /***************************************************************************** |
153 | *Function name |
963b5f2d |
154 | * ltt_tracefile_open : open a trace file, construct a LttTracefile |
6cd62ccf |
155 | *Input params |
963b5f2d |
156 | * t : the trace containing the tracefile |
157 | * fileName : path name of the trace file |
6cd62ccf |
158 | *Return value |
963b5f2d |
159 | * : a pointer to a tracefile |
6cd62ccf |
160 | ****************************************************************************/ |
161 | |
963b5f2d |
162 | LttTracefile* ltt_tracefile_open(LttTrace * t, char * fileName) |
6cd62ccf |
163 | { |
963b5f2d |
164 | LttTracefile * tf; |
165 | struct stat lTDFStat; /* Trace data file status */ |
6cd62ccf |
166 | |
963b5f2d |
167 | tf = g_new(LttTracefile, 1); |
6cd62ccf |
168 | |
169 | //open the file |
963b5f2d |
170 | tf->name = g_strdup(fileName); |
171 | tf->trace = t; |
6cd62ccf |
172 | tf->fd = open(fileName, O_RDONLY, 0); |
173 | if(tf->fd < 0){ |
2a74fbf4 |
174 | g_warning("Unable to open input data file %s\n", fileName); |
175 | g_free(tf->name); |
176 | g_free(tf); |
177 | return NULL; |
6cd62ccf |
178 | } |
179 | |
180 | // Get the file's status |
181 | if(fstat(tf->fd, &lTDFStat) < 0){ |
2a74fbf4 |
182 | g_warning("Unable to get the status of the input data file %s\n", fileName); |
183 | g_free(tf->name); |
184 | close(tf->fd); |
185 | g_free(tf); |
186 | return NULL; |
6cd62ccf |
187 | } |
188 | |
189 | // Is the file large enough to contain a trace |
8d1e6362 |
190 | if(lTDFStat.st_size < (off_t)(sizeof(BlockStart) + EVENT_HEADER_SIZE)){ |
8710c6c7 |
191 | g_print("The input data file %s does not contain a trace\n", fileName); |
663bd9ff |
192 | g_free(tf->name); |
193 | close(tf->fd); |
194 | g_free(tf); |
8710c6c7 |
195 | return NULL; |
6cd62ccf |
196 | } |
197 | |
198 | //store the size of the file |
199 | tf->file_size = lTDFStat.st_size; |
963b5f2d |
200 | tf->block_size = t->system_description->ltt_block_size; |
201 | tf->block_number = tf->file_size / tf->block_size; |
202 | tf->which_block = 0; |
6cd62ccf |
203 | |
204 | //allocate memory to contain the info of a block |
963b5f2d |
205 | tf->buffer = (void *) g_new(char, t->system_description->ltt_block_size); |
6cd62ccf |
206 | |
963b5f2d |
207 | //read the first block |
208 | if(readBlock(tf,1)) exit(1); |
6cd62ccf |
209 | |
210 | return tf; |
211 | } |
212 | |
6cd62ccf |
213 | |
214 | /***************************************************************************** |
963b5f2d |
215 | *Open control and per cpu tracefiles |
6cd62ccf |
216 | ****************************************************************************/ |
217 | |
963b5f2d |
218 | void ltt_tracefile_open_cpu(LttTrace *t, char * tracefile_name) |
6cd62ccf |
219 | { |
963b5f2d |
220 | LttTracefile * tf; |
221 | tf = ltt_tracefile_open(t,tracefile_name); |
4a6c8e36 |
222 | if(!tf) return; |
963b5f2d |
223 | t->per_cpu_tracefile_number++; |
224 | g_ptr_array_add(t->per_cpu_tracefiles, tf); |
6cd62ccf |
225 | } |
226 | |
2a74fbf4 |
227 | gint ltt_tracefile_open_control(LttTrace *t, char * control_name) |
6cd62ccf |
228 | { |
963b5f2d |
229 | LttTracefile * tf; |
c02ea99f |
230 | LttEvent ev; |
963b5f2d |
231 | LttFacility * f; |
963b5f2d |
232 | void * pos; |
233 | FacilityLoad fLoad; |
8d1e6362 |
234 | unsigned int i; |
963b5f2d |
235 | |
236 | tf = ltt_tracefile_open(t,control_name); |
2a74fbf4 |
237 | if(!tf) { |
238 | g_warning("ltt_tracefile_open_control : bad file descriptor"); |
239 | return -1; |
240 | } |
963b5f2d |
241 | t->control_tracefile_number++; |
242 | g_ptr_array_add(t->control_tracefiles,tf); |
243 | |
244 | //parse facilities tracefile to get base_id |
542ceddd |
245 | if(strcmp(&control_name[strlen(control_name)-10],"facilities") ==0){ |
963b5f2d |
246 | while(1){ |
c02ea99f |
247 | if(!ltt_tracefile_read(tf,&ev)) return 0; // end of file |
40331ba8 |
248 | |
c02ea99f |
249 | if(ev.event_id == TRACE_FACILITY_LOAD){ |
250 | pos = ev.data; |
963b5f2d |
251 | fLoad.name = (char*)pos; |
47a166fc |
252 | fLoad.checksum = *(LttChecksum*)(pos + strlen(fLoad.name)); |
cbd41522 |
253 | fLoad.base_code = *(guint32 *)(pos + strlen(fLoad.name) + sizeof(LttChecksum)); |
963b5f2d |
254 | |
255 | for(i=0;i<t->facility_number;i++){ |
256 | f = (LttFacility*)g_ptr_array_index(t->facilities,i); |
257 | if(strcmp(f->name,fLoad.name)==0 && fLoad.checksum==f->checksum){ |
258 | f->base_id = fLoad.base_code; |
259 | break; |
260 | } |
261 | } |
2a74fbf4 |
262 | if(i==t->facility_number) { |
8d1e6362 |
263 | g_warning("Facility: %s, checksum: %u is not found", |
264 | fLoad.name,(unsigned int)fLoad.checksum); |
2a74fbf4 |
265 | return -1; |
266 | } |
c02ea99f |
267 | }else if(ev.event_id == TRACE_BLOCK_START){ |
40331ba8 |
268 | continue; |
c02ea99f |
269 | }else if(ev.event_id == TRACE_BLOCK_END){ |
40331ba8 |
270 | break; |
2a74fbf4 |
271 | }else { |
8d1e6362 |
272 | g_warning("Not valid facilities trace file"); |
2a74fbf4 |
273 | return -1; |
274 | } |
963b5f2d |
275 | } |
276 | } |
2a74fbf4 |
277 | return 0; |
6cd62ccf |
278 | } |
279 | |
280 | /***************************************************************************** |
281 | *Function name |
963b5f2d |
282 | * ltt_tracefile_close: close a trace file, |
6cd62ccf |
283 | *Input params |
963b5f2d |
284 | * t : tracefile which will be closed |
6cd62ccf |
285 | ****************************************************************************/ |
286 | |
963b5f2d |
287 | void ltt_tracefile_close(LttTracefile *t) |
6cd62ccf |
288 | { |
963b5f2d |
289 | g_free(t->name); |
290 | g_free(t->buffer); |
663bd9ff |
291 | close(t->fd); |
963b5f2d |
292 | g_free(t); |
293 | } |
6cd62ccf |
294 | |
6cd62ccf |
295 | |
963b5f2d |
296 | /***************************************************************************** |
297 | *Get system information |
298 | ****************************************************************************/ |
2a74fbf4 |
299 | gint getSystemInfo(LttSystemDescription* des, char * pathname) |
963b5f2d |
300 | { |
301 | FILE * fp; |
963b5f2d |
302 | char buf[DIR_NAME_SIZE]; |
43da6a59 |
303 | |
304 | GMarkupParseContext * context; |
2a74fbf4 |
305 | GError * error = NULL; |
43da6a59 |
306 | GMarkupParser markup_parser = |
307 | { |
308 | parser_start_element, |
8d1e6362 |
309 | NULL, |
43da6a59 |
310 | parser_characters, |
311 | NULL, /* passthrough */ |
312 | NULL /* error */ |
313 | }; |
963b5f2d |
314 | |
315 | fp = fopen(pathname,"r"); |
316 | if(!fp){ |
2a74fbf4 |
317 | g_warning("Can not open file : %s\n", pathname); |
318 | return -1; |
6cd62ccf |
319 | } |
963b5f2d |
320 | |
43da6a59 |
321 | context = g_markup_parse_context_new(&markup_parser, 0, des,NULL); |
6cd62ccf |
322 | |
43da6a59 |
323 | while(fgets(buf,DIR_NAME_SIZE, fp) != NULL){ |
324 | if(!g_markup_parse_context_parse(context, buf, DIR_NAME_SIZE, &error)){ |
2a74fbf4 |
325 | if(error != NULL) { |
326 | g_warning("Can not parse xml file: \n%s\n", error->message); |
327 | g_error_free(error); |
328 | } |
329 | g_markup_parse_context_free(context); |
330 | fclose(fp); |
331 | return -1; |
43da6a59 |
332 | } |
963b5f2d |
333 | } |
2a74fbf4 |
334 | g_markup_parse_context_free(context); |
963b5f2d |
335 | fclose(fp); |
2a74fbf4 |
336 | return 0; |
6cd62ccf |
337 | } |
338 | |
339 | /***************************************************************************** |
963b5f2d |
340 | *The following functions get facility/tracefile information |
6cd62ccf |
341 | ****************************************************************************/ |
342 | |
2a74fbf4 |
343 | gint getFacilityInfo(LttTrace *t, char* eventdefs) |
6cd62ccf |
344 | { |
963b5f2d |
345 | DIR * dir; |
346 | struct dirent *entry; |
347 | char * ptr; |
8d1e6362 |
348 | unsigned int i,j; |
963b5f2d |
349 | LttFacility * f; |
350 | LttEventType * et; |
e8bb1a73 |
351 | char name[DIR_NAME_SIZE]; |
963b5f2d |
352 | |
353 | dir = opendir(eventdefs); |
2a74fbf4 |
354 | if(!dir) { |
355 | g_warning("Can not open directory: %s\n", eventdefs); |
356 | return -1; |
357 | } |
963b5f2d |
358 | |
359 | while((entry = readdir(dir)) != NULL){ |
360 | ptr = &entry->d_name[strlen(entry->d_name)-4]; |
361 | if(strcmp(ptr,".xml") != 0) continue; |
e8bb1a73 |
362 | strcpy(name,eventdefs); |
363 | strcat(name,entry->d_name); |
364 | ltt_facility_open(t,name); |
963b5f2d |
365 | } |
366 | closedir(dir); |
367 | |
963b5f2d |
368 | for(j=0;j<t->facility_number;j++){ |
8710c6c7 |
369 | f = (LttFacility*)g_ptr_array_index(t->facilities, j); |
963b5f2d |
370 | for(i=0; i<f->event_number; i++){ |
371 | et = f->events[i]; |
40331ba8 |
372 | setFieldsOffset(NULL, et, NULL, t); |
963b5f2d |
373 | } |
374 | } |
2a74fbf4 |
375 | return 0; |
963b5f2d |
376 | } |
6cd62ccf |
377 | |
2a74fbf4 |
378 | gint getControlFileInfo(LttTrace *t, char* control) |
6cd62ccf |
379 | { |
963b5f2d |
380 | DIR * dir; |
381 | struct dirent *entry; |
e8bb1a73 |
382 | char name[DIR_NAME_SIZE]; |
963b5f2d |
383 | |
384 | dir = opendir(control); |
2a74fbf4 |
385 | if(!dir) { |
386 | g_warning("Can not open directory: %s\n", control); |
387 | return -1; |
388 | } |
963b5f2d |
389 | |
390 | while((entry = readdir(dir)) != NULL){ |
8710c6c7 |
391 | if(strcmp(entry->d_name,"facilities") != 0 && |
392 | strcmp(entry->d_name,"interrupts") != 0 && |
963b5f2d |
393 | strcmp(entry->d_name,"processes") != 0) continue; |
394 | |
e8bb1a73 |
395 | strcpy(name,control); |
396 | strcat(name,entry->d_name); |
2a74fbf4 |
397 | if(ltt_tracefile_open_control(t,name)) |
398 | return -1; |
963b5f2d |
399 | } |
400 | closedir(dir); |
2a74fbf4 |
401 | return 0; |
6cd62ccf |
402 | } |
403 | |
2a74fbf4 |
404 | gint getCpuFileInfo(LttTrace *t, char* cpu) |
6cd62ccf |
405 | { |
963b5f2d |
406 | DIR * dir; |
407 | struct dirent *entry; |
e8bb1a73 |
408 | char name[DIR_NAME_SIZE]; |
963b5f2d |
409 | |
410 | dir = opendir(cpu); |
2a74fbf4 |
411 | if(!dir) { |
412 | g_warning("Can not open directory: %s\n", cpu); |
413 | return -1; |
414 | } |
963b5f2d |
415 | |
416 | while((entry = readdir(dir)) != NULL){ |
8710c6c7 |
417 | if(strcmp(entry->d_name,".") != 0 && |
a614481a |
418 | strcmp(entry->d_name,"..") != 0 && |
419 | strcmp(entry->d_name,".svn") != 0){ |
e8bb1a73 |
420 | strcpy(name,cpu); |
421 | strcat(name,entry->d_name); |
422 | ltt_tracefile_open_cpu(t,name); |
963b5f2d |
423 | }else continue; |
424 | } |
425 | closedir(dir); |
2a74fbf4 |
426 | return 0; |
6cd62ccf |
427 | } |
428 | |
963b5f2d |
429 | /***************************************************************************** |
430 | *A trace is specified as a pathname to the directory containing all the |
431 | *associated data (control tracefiles, per cpu tracefiles, event |
432 | *descriptions...). |
433 | * |
434 | *When a trace is closed, all the associated facilities, types and fields |
435 | *are released as well. |
8d1e6362 |
436 | */ |
437 | |
438 | |
439 | /**************************************************************************** |
440 | * get_absolute_pathname |
803229fa |
441 | * |
8d1e6362 |
442 | * return the unique pathname in the system |
443 | * |
ef35d837 |
444 | * MD : Fixed this function so it uses realpath, dealing well with |
445 | * forgotten cases (.. were not used correctly before). |
803229fa |
446 | * |
963b5f2d |
447 | ****************************************************************************/ |
9f797243 |
448 | void get_absolute_pathname(const char *pathname, char * abs_pathname) |
449 | { |
9f797243 |
450 | abs_pathname[0] = '\0'; |
803229fa |
451 | |
ef35d837 |
452 | if ( realpath (pathname, abs_pathname) != NULL) |
453 | return; |
454 | else |
455 | { |
8d1e6362 |
456 | /* error, return the original path unmodified */ |
ef35d837 |
457 | strcpy(abs_pathname, pathname); |
9f797243 |
458 | return; |
459 | } |
ef35d837 |
460 | return; |
9f797243 |
461 | } |
462 | |
f7afe191 |
463 | LttTrace *ltt_trace_open(const char *pathname) |
6cd62ccf |
464 | { |
963b5f2d |
465 | LttTrace * t; |
466 | LttSystemDescription * sys_description; |
467 | char eventdefs[DIR_NAME_SIZE]; |
468 | char info[DIR_NAME_SIZE]; |
469 | char control[DIR_NAME_SIZE]; |
470 | char cpu[DIR_NAME_SIZE]; |
471 | char tmp[DIR_NAME_SIZE]; |
9f797243 |
472 | char abs_path[DIR_NAME_SIZE]; |
963b5f2d |
473 | gboolean has_slash = FALSE; |
474 | |
9f797243 |
475 | get_absolute_pathname(pathname, abs_path); |
963b5f2d |
476 | //establish the pathname to different directories |
9f797243 |
477 | if(abs_path[strlen(abs_path)-1] == '/')has_slash = TRUE; |
478 | strcpy(eventdefs,abs_path); |
963b5f2d |
479 | if(!has_slash)strcat(eventdefs,"/"); |
480 | strcat(eventdefs,"eventdefs/"); |
481 | |
9f797243 |
482 | strcpy(info,abs_path); |
963b5f2d |
483 | if(!has_slash)strcat(info,"/"); |
484 | strcat(info,"info/"); |
485 | |
9f797243 |
486 | strcpy(control,abs_path); |
963b5f2d |
487 | if(!has_slash)strcat(control,"/"); |
488 | strcat(control,"control/"); |
489 | |
9f797243 |
490 | strcpy(cpu,abs_path); |
963b5f2d |
491 | if(!has_slash)strcat(cpu,"/"); |
492 | strcat(cpu,"cpu/"); |
493 | |
494 | //new trace |
963b5f2d |
495 | sys_description = g_new(LttSystemDescription, 1); |
2a74fbf4 |
496 | t = g_new(LttTrace, 1); |
9f797243 |
497 | t->pathname = g_strdup(abs_path); |
963b5f2d |
498 | t->facility_number = 0; |
499 | t->control_tracefile_number = 0; |
500 | t->per_cpu_tracefile_number = 0; |
501 | t->system_description = sys_description; |
502 | t->control_tracefiles = g_ptr_array_new(); |
503 | t->per_cpu_tracefiles = g_ptr_array_new(); |
504 | t->facilities = g_ptr_array_new(); |
505 | getDataEndianType(&(t->my_arch_size), &(t->my_arch_endian)); |
506 | |
507 | //get system description |
508 | strcpy(tmp,info); |
509 | strcat(tmp,"system.xml"); |
2a74fbf4 |
510 | if(getSystemInfo(sys_description, tmp)) { |
511 | g_ptr_array_free(t->facilities, TRUE); |
512 | g_ptr_array_free(t->per_cpu_tracefiles, TRUE); |
513 | g_ptr_array_free(t->control_tracefiles, TRUE); |
514 | g_free(sys_description); |
515 | g_free(t->pathname); |
516 | g_free(t); |
517 | return NULL; |
518 | } |
519 | |
520 | |
963b5f2d |
521 | |
b333a76b |
522 | //get facilities info |
2a74fbf4 |
523 | if(getFacilityInfo(t,eventdefs)) { |
524 | g_ptr_array_free(t->facilities, TRUE); |
525 | g_ptr_array_free(t->per_cpu_tracefiles, TRUE); |
526 | g_ptr_array_free(t->control_tracefiles, TRUE); |
527 | g_free(sys_description); |
528 | g_free(t->pathname); |
529 | g_free(t); |
530 | return NULL; |
531 | } |
b333a76b |
532 | |
963b5f2d |
533 | //get control tracefile info |
a00149f6 |
534 | getControlFileInfo(t,control); |
535 | /* |
2a74fbf4 |
536 | if(getControlFileInfo(t,control)) { |
537 | g_ptr_array_free(t->facilities, TRUE); |
538 | g_ptr_array_free(t->per_cpu_tracefiles, TRUE); |
539 | g_ptr_array_free(t->control_tracefiles, TRUE); |
540 | g_free(sys_description); |
541 | g_free(t->pathname); |
542 | g_free(t); |
543 | return NULL; |
a00149f6 |
544 | }*/ // With fatal error |
963b5f2d |
545 | |
546 | //get cpu tracefile info |
2a74fbf4 |
547 | if(getCpuFileInfo(t,cpu)) { |
548 | g_ptr_array_free(t->facilities, TRUE); |
549 | g_ptr_array_free(t->per_cpu_tracefiles, TRUE); |
550 | g_ptr_array_free(t->control_tracefiles, TRUE); |
551 | g_free(sys_description); |
552 | g_free(t->pathname); |
553 | g_free(t); |
554 | return NULL; |
555 | } |
963b5f2d |
556 | |
963b5f2d |
557 | return t; |
6cd62ccf |
558 | } |
559 | |
49bf71b5 |
560 | char * ltt_trace_name(LttTrace *t) |
561 | { |
562 | return t->pathname; |
563 | } |
564 | |
565 | |
f7afe191 |
566 | /****************************************************************************** |
567 | * When we copy a trace, we want all the opening actions to happen again : |
568 | * the trace will be reopened and totally independant from the original. |
569 | * That's why we call ltt_trace_open. |
570 | *****************************************************************************/ |
571 | LttTrace *ltt_trace_copy(LttTrace *self) |
572 | { |
573 | return ltt_trace_open(self->pathname); |
574 | } |
575 | |
963b5f2d |
576 | void ltt_trace_close(LttTrace *t) |
6cd62ccf |
577 | { |
8d1e6362 |
578 | unsigned int i; |
963b5f2d |
579 | LttTracefile * tf; |
580 | LttFacility * f; |
581 | |
582 | g_free(t->pathname); |
583 | |
584 | //free system_description |
585 | g_free(t->system_description->description); |
586 | g_free(t->system_description->node_name); |
587 | g_free(t->system_description->domain_name); |
588 | g_free(t->system_description->kernel_name); |
589 | g_free(t->system_description->kernel_release); |
590 | g_free(t->system_description->kernel_version); |
591 | g_free(t->system_description->machine); |
592 | g_free(t->system_description->processor); |
593 | g_free(t->system_description->hardware_platform); |
594 | g_free(t->system_description->operating_system); |
595 | g_free(t->system_description); |
596 | |
597 | //free control_tracefiles |
598 | for(i=0;i<t->control_tracefile_number;i++){ |
599 | tf = (LttTracefile*)g_ptr_array_index(t->control_tracefiles,i); |
600 | ltt_tracefile_close(tf); |
601 | } |
09ad4797 |
602 | g_ptr_array_free(t->control_tracefiles, TRUE); |
963b5f2d |
603 | |
604 | //free per_cpu_tracefiles |
605 | for(i=0;i<t->per_cpu_tracefile_number;i++){ |
606 | tf = (LttTracefile*)g_ptr_array_index(t->per_cpu_tracefiles,i); |
607 | ltt_tracefile_close(tf); |
608 | } |
09ad4797 |
609 | g_ptr_array_free(t->per_cpu_tracefiles, TRUE); |
963b5f2d |
610 | |
611 | //free facilities |
612 | for(i=0;i<t->facility_number;i++){ |
613 | f = (LttFacility*)g_ptr_array_index(t->facilities,i); |
614 | ltt_facility_close(f); |
615 | } |
09ad4797 |
616 | g_ptr_array_free(t->facilities, TRUE); |
963b5f2d |
617 | |
618 | g_free(t); |
09ad4797 |
619 | |
620 | g_blow_chunks(); |
6cd62ccf |
621 | } |
622 | |
963b5f2d |
623 | |
6cd62ccf |
624 | /***************************************************************************** |
963b5f2d |
625 | *Get the system description of the trace |
6cd62ccf |
626 | ****************************************************************************/ |
627 | |
963b5f2d |
628 | LttSystemDescription *ltt_trace_system_description(LttTrace *t) |
6cd62ccf |
629 | { |
963b5f2d |
630 | return t->system_description; |
6cd62ccf |
631 | } |
632 | |
633 | /***************************************************************************** |
963b5f2d |
634 | * The following functions discover the facilities of the trace |
6cd62ccf |
635 | ****************************************************************************/ |
636 | |
963b5f2d |
637 | unsigned ltt_trace_facility_number(LttTrace *t) |
638 | { |
639 | return (unsigned)(t->facility_number); |
640 | } |
641 | |
642 | LttFacility *ltt_trace_facility_get(LttTrace *t, unsigned i) |
6cd62ccf |
643 | { |
963b5f2d |
644 | return (LttFacility*)g_ptr_array_index(t->facilities, i); |
6cd62ccf |
645 | } |
646 | |
647 | /***************************************************************************** |
648 | *Function name |
963b5f2d |
649 | * ltt_trace_facility_find : find facilities in the trace |
6cd62ccf |
650 | *Input params |
963b5f2d |
651 | * t : the trace |
652 | * name : facility name |
653 | *Output params |
654 | * position : position of the facility in the trace |
6cd62ccf |
655 | *Return value |
963b5f2d |
656 | * : the number of facilities |
6cd62ccf |
657 | ****************************************************************************/ |
658 | |
963b5f2d |
659 | unsigned ltt_trace_facility_find(LttTrace *t, char *name, unsigned *position) |
6cd62ccf |
660 | { |
8d1e6362 |
661 | unsigned int i, count=0; |
963b5f2d |
662 | LttFacility * f; |
8a3005f3 |
663 | for(i=0;i<t->facility_number;i++){ |
963b5f2d |
664 | f = (LttFacility*)g_ptr_array_index(t->facilities, i); |
665 | if(strcmp(f->name,name)==0){ |
666 | count++; |
667 | if(count==1) *position = i; |
668 | }else{ |
669 | if(count) break; |
670 | } |
671 | } |
672 | return count; |
6cd62ccf |
673 | } |
674 | |
675 | /***************************************************************************** |
963b5f2d |
676 | * Functions to discover all the event types in the trace |
6cd62ccf |
677 | ****************************************************************************/ |
678 | |
963b5f2d |
679 | unsigned ltt_trace_eventtype_number(LttTrace *t) |
6cd62ccf |
680 | { |
8d1e6362 |
681 | unsigned int i; |
963b5f2d |
682 | unsigned count = 0; |
683 | LttFacility * f; |
b445142a |
684 | for(i=0;i<t->facility_number;i++){ |
963b5f2d |
685 | f = (LttFacility*)g_ptr_array_index(t->facilities, i); |
686 | count += f->event_number; |
687 | } |
688 | return count; |
6cd62ccf |
689 | } |
690 | |
155a7b0a |
691 | /* FIXME : performances could be improved with a better design for this |
6e8c19d4 |
692 | * function : sequential search through a container has never been the |
693 | * best on the critical path. */ |
963b5f2d |
694 | LttFacility * ltt_trace_facility_by_id(LttTrace * trace, unsigned id) |
6cd62ccf |
695 | { |
cf74a6f1 |
696 | LttFacility * facility = NULL; |
8d1e6362 |
697 | unsigned int i; |
cf74a6f1 |
698 | |
963b5f2d |
699 | for(i=0;i<trace->facility_number;i++){ |
cf74a6f1 |
700 | LttFacility *iter_facility = |
701 | (LttFacility*) g_ptr_array_index(trace->facilities,i); |
155a7b0a |
702 | if(unlikely(id >= iter_facility->base_id && |
703 | id < iter_facility->base_id + iter_facility->event_number)) { |
cf74a6f1 |
704 | facility = iter_facility; |
963b5f2d |
705 | break; |
cf74a6f1 |
706 | } |
963b5f2d |
707 | } |
cf74a6f1 |
708 | |
709 | return facility; |
6cd62ccf |
710 | } |
711 | |
963b5f2d |
712 | LttEventType *ltt_trace_eventtype_get(LttTrace *t, unsigned evId) |
6cd62ccf |
713 | { |
6e8c19d4 |
714 | LttEventType *event_type; |
715 | |
963b5f2d |
716 | LttFacility * f; |
717 | f = ltt_trace_facility_by_id(t,evId); |
6e8c19d4 |
718 | |
719 | if(unlikely(!f)) event_type = NULL; |
720 | else event_type = f->events[evId - f->base_id]; |
721 | |
722 | return event_type; |
6cd62ccf |
723 | } |
724 | |
725 | /***************************************************************************** |
963b5f2d |
726 | *There is one "per cpu" tracefile for each CPU, numbered from 0 to |
727 | *the maximum number of CPU in the system. When the number of CPU installed |
728 | *is less than the maximum, some positions are unused. There are also a |
729 | *number of "control" tracefiles (facilities, interrupts...). |
6cd62ccf |
730 | ****************************************************************************/ |
963b5f2d |
731 | unsigned ltt_trace_control_tracefile_number(LttTrace *t) |
6cd62ccf |
732 | { |
963b5f2d |
733 | return t->control_tracefile_number; |
6cd62ccf |
734 | } |
735 | |
963b5f2d |
736 | unsigned ltt_trace_per_cpu_tracefile_number(LttTrace *t) |
6cd62ccf |
737 | { |
963b5f2d |
738 | return t->per_cpu_tracefile_number; |
6cd62ccf |
739 | } |
740 | |
741 | /***************************************************************************** |
963b5f2d |
742 | *It is possible to search for the tracefiles by name or by CPU position. |
743 | *The index within the tracefiles of the same type is returned if found |
744 | *and a negative value otherwise. |
6cd62ccf |
745 | ****************************************************************************/ |
746 | |
8d1e6362 |
747 | int ltt_trace_control_tracefile_find(LttTrace *t, const gchar *name) |
6cd62ccf |
748 | { |
963b5f2d |
749 | LttTracefile * tracefile; |
8d1e6362 |
750 | unsigned int i; |
963b5f2d |
751 | for(i=0;i<t->control_tracefile_number;i++){ |
752 | tracefile = (LttTracefile*)g_ptr_array_index(t->control_tracefiles, i); |
753 | if(strcmp(tracefile->name, name)==0)break; |
754 | } |
755 | if(i == t->control_tracefile_number) return -1; |
756 | return i; |
6cd62ccf |
757 | } |
758 | |
8d1e6362 |
759 | /* not really useful. We just have to know that cpu tracefiles |
760 | * comes before control tracefiles. |
761 | */ |
762 | int ltt_trace_per_cpu_tracefile_find(LttTrace *t, const gchar *name) |
6cd62ccf |
763 | { |
963b5f2d |
764 | LttTracefile * tracefile; |
8d1e6362 |
765 | unsigned int i; |
766 | for(i=0;i<t->per_cpu_tracefile_number;i++){ |
767 | tracefile = (LttTracefile*)g_ptr_array_index(t->per_cpu_tracefiles, i); |
768 | if(strcmp(tracefile->name, name)==0)break; |
963b5f2d |
769 | } |
8d1e6362 |
770 | if(i == t->per_cpu_tracefile_number) return -1; |
771 | return i; |
6cd62ccf |
772 | } |
773 | |
774 | /***************************************************************************** |
963b5f2d |
775 | *Get a specific tracefile |
6cd62ccf |
776 | ****************************************************************************/ |
777 | |
963b5f2d |
778 | LttTracefile *ltt_trace_control_tracefile_get(LttTrace *t, unsigned i) |
6cd62ccf |
779 | { |
5598cfe3 |
780 | return (LttTracefile*)g_ptr_array_index(t->control_tracefiles, i); |
963b5f2d |
781 | } |
782 | |
783 | LttTracefile *ltt_trace_per_cpu_tracefile_get(LttTrace *t, unsigned i) |
784 | { |
785 | return (LttTracefile*)g_ptr_array_index(t->per_cpu_tracefiles, i); |
6cd62ccf |
786 | } |
787 | |
487ad181 |
788 | /***************************************************************************** |
789 | * Get the start time and end time of the trace |
790 | ****************************************************************************/ |
791 | |
792 | void ltt_trace_time_span_get(LttTrace *t, LttTime *start, LttTime *end) |
793 | { |
794 | LttTime startSmall, startTmp, endBig, endTmp; |
8d1e6362 |
795 | unsigned int i, j=0; |
487ad181 |
796 | LttTracefile * tf; |
797 | |
798 | for(i=0;i<t->control_tracefile_number;i++){ |
799 | tf = g_ptr_array_index(t->control_tracefiles, i); |
800 | readBlock(tf,1); |
801 | startTmp = tf->a_block_start->time; |
802 | readBlock(tf,tf->block_number); |
803 | endTmp = tf->a_block_end->time; |
804 | if(i==0){ |
805 | startSmall = startTmp; |
806 | endBig = endTmp; |
807 | j = 1; |
808 | continue; |
809 | } |
308711e5 |
810 | if(ltt_time_compare(startSmall,startTmp) > 0) startSmall = startTmp; |
811 | if(ltt_time_compare(endBig,endTmp) < 0) endBig = endTmp; |
487ad181 |
812 | } |
813 | |
814 | for(i=0;i<t->per_cpu_tracefile_number;i++){ |
815 | tf = g_ptr_array_index(t->per_cpu_tracefiles, i); |
816 | readBlock(tf,1); |
817 | startTmp = tf->a_block_start->time; |
818 | readBlock(tf,tf->block_number); |
819 | endTmp = tf->a_block_end->time; |
820 | if(j == 0 && i==0){ |
821 | startSmall = startTmp; |
822 | endBig = endTmp; |
823 | continue; |
824 | } |
308711e5 |
825 | if(ltt_time_compare(startSmall,startTmp) > 0) startSmall = startTmp; |
826 | if(ltt_time_compare(endBig,endTmp) < 0) endBig = endTmp; |
487ad181 |
827 | } |
828 | |
c02ea99f |
829 | if(start != NULL) *start = startSmall; |
830 | if(end != NULL) *end = endBig; |
487ad181 |
831 | } |
832 | |
833 | |
6cd62ccf |
834 | /***************************************************************************** |
963b5f2d |
835 | *Get the name of a tracefile |
6cd62ccf |
836 | ****************************************************************************/ |
837 | |
963b5f2d |
838 | char *ltt_tracefile_name(LttTracefile *tf) |
6cd62ccf |
839 | { |
963b5f2d |
840 | return tf->name; |
6cd62ccf |
841 | } |
842 | |
80da81ad |
843 | /***************************************************************************** |
844 | * Get the number of blocks in the tracefile |
845 | ****************************************************************************/ |
846 | |
847 | unsigned ltt_tracefile_block_number(LttTracefile *tf) |
848 | { |
849 | return tf->block_number; |
850 | } |
851 | |
6cd62ccf |
852 | /***************************************************************************** |
853 | *Function name |
854 | * ltt_tracefile_seek_time: seek to the first event of the trace with time |
855 | * larger or equal to time |
856 | *Input params |
857 | * t : tracefile |
858 | * time : criteria of the time |
6cd62ccf |
859 | ****************************************************************************/ |
caf7a67a |
860 | void ltt_tracefile_find_time_block(LttTracefile *t, LttTime time, |
861 | int start_block, int end_block) |
862 | { |
863 | int err, tmp_block, s, e; |
864 | int headTime; |
865 | int tailTime; |
866 | |
867 | err=readBlock(t,start_block); |
868 | if(err) g_error("Can not read tracefile: %s\n", t->name); |
869 | if(start_block == end_block)return; |
870 | |
871 | tailTime = ltt_time_compare(t->a_block_end->time, time); |
872 | if(tailTime >= 0) return; |
873 | |
874 | err=readBlock(t,end_block); |
875 | if(err) g_error("Can not read tracefile: %s\n", t->name); |
876 | if(start_block+1 == end_block)return; |
877 | |
878 | headTime = ltt_time_compare(t->a_block_start->time, time); |
879 | if(headTime <= 0 ) return; |
880 | |
881 | tmp_block = (end_block + start_block)/2; |
882 | err=readBlock(t,tmp_block); |
883 | if(err) g_error("Can not read tracefile: %s\n", t->name); |
884 | |
885 | headTime = ltt_time_compare(t->a_block_start->time, time); |
886 | tailTime = ltt_time_compare(t->a_block_end->time, time); |
887 | if(headTime <= 0 && tailTime >= 0) return; |
888 | |
889 | if(headTime > 0){ |
890 | s = start_block + 1; |
891 | e = tmp_block - 1; |
892 | if(s <= e) |
893 | ltt_tracefile_find_time_block(t, time, s, e); |
894 | else return; |
895 | } |
896 | |
897 | if(tailTime < 0){ |
898 | s = tmp_block + 1; |
899 | e = end_block - 1; |
900 | if(s <= e) |
901 | ltt_tracefile_find_time_block(t, time, s, e); |
902 | else return; |
903 | } |
904 | } |
905 | |
906 | void ltt_tracefile_backward_find_time_block(LttTracefile *t, LttTime time) |
907 | { |
908 | int t_time, h_time, err; |
909 | err=readBlock(t,t->which_block-1); |
910 | if(err) g_error("Can not read tracefile: %s\n", t->name); |
911 | h_time = ltt_time_compare(t->a_block_start->time, time); |
912 | t_time = ltt_time_compare(t->a_block_end->time, time); |
913 | if(h_time == 0){ |
914 | int tmp; |
915 | if(t->which_block == 1) return; |
916 | err=readBlock(t,t->which_block-1); |
917 | if(err) g_error("Can not read tracefile: %s\n", t->name); |
918 | tmp = ltt_time_compare(t->a_block_end->time, time); |
919 | if(tmp == 0) return ltt_tracefile_seek_time(t, time); |
920 | err=readBlock(t,t->which_block+1); |
921 | if(err) g_error("Can not read tracefile: %s\n", t->name); |
922 | }else if(h_time > 0){ |
923 | ltt_tracefile_find_time_block(t, time, 1, t->which_block); |
924 | return ltt_tracefile_seek_time(t, time) ; |
925 | }else{ |
926 | if(t_time >= 0) return ltt_tracefile_seek_time(t, time); |
927 | err=readBlock(t,t->which_block+1); |
928 | if(err) g_error("Can not read tracefile: %s\n", t->name); |
929 | } |
930 | } |
6cd62ccf |
931 | |
963b5f2d |
932 | void ltt_tracefile_seek_time(LttTracefile *t, LttTime time) |
6cd62ccf |
933 | { |
934 | int err; |
963b5f2d |
935 | LttTime lttTime; |
308711e5 |
936 | int headTime = ltt_time_compare(t->a_block_start->time, time); |
937 | int tailTime = ltt_time_compare(t->a_block_end->time, time); |
c02ea99f |
938 | LttEvent ev; |
62e55dd6 |
939 | |
6cd62ccf |
940 | if(headTime < 0 && tailTime > 0){ |
308711e5 |
941 | if(ltt_time_compare(t->a_block_end->time, t->current_event_time) !=0) { |
db55eaae |
942 | lttTime = getEventTime(t); |
308711e5 |
943 | err = ltt_time_compare(lttTime, time); |
db55eaae |
944 | if(err > 0){ |
8d1e6362 |
945 | if(t->which_event==2 || ltt_time_compare(t->prev_event_time,time)<0){ |
1a3b8cbd |
946 | return; |
db55eaae |
947 | }else{ |
948 | updateTracefile(t); |
949 | return ltt_tracefile_seek_time(t, time); |
1a3b8cbd |
950 | } |
db55eaae |
951 | }else if(err < 0){ |
952 | while(1){ |
c02ea99f |
953 | if(ltt_tracefile_read(t,&ev) == NULL) { |
db55eaae |
954 | g_print("End of file\n"); |
955 | return; |
956 | } |
957 | lttTime = getEventTime(t); |
308711e5 |
958 | err = ltt_time_compare(lttTime, time); |
db55eaae |
959 | if(err >= 0)return; |
960 | } |
961 | }else return; |
962 | }else{//we are at the end of the block |
963 | updateTracefile(t); |
964 | return ltt_tracefile_seek_time(t, time); |
965 | } |
e37c1372 |
966 | }else if(headTime >= 0){ |
6cd62ccf |
967 | if(t->which_block == 1){ |
968 | updateTracefile(t); |
969 | }else{ |
1ee6a9af |
970 | if(ltt_time_compare(t->prev_block_end_time, time) >= 0 || |
971 | (t->prev_block_end_time.tv_sec == 0 && |
972 | t->prev_block_end_time.tv_nsec == 0 )){ |
caf7a67a |
973 | ltt_tracefile_backward_find_time_block(t, time); |
6cd62ccf |
974 | }else{ |
975 | updateTracefile(t); |
976 | } |
977 | } |
40331ba8 |
978 | }else if(tailTime < 0){ |
6cd62ccf |
979 | if(t->which_block != t->block_number){ |
caf7a67a |
980 | ltt_tracefile_find_time_block(t, time, t->which_block+1, t->block_number); |
981 | return ltt_tracefile_seek_time(t, time); |
963b5f2d |
982 | }else { |
a8c0f09d |
983 | t->cur_event_pos = t->buffer + t->block_size; |
984 | g_print("End of file\n"); |
963b5f2d |
985 | return; |
986 | } |
40331ba8 |
987 | }else if(tailTime == 0){ |
e37c1372 |
988 | t->cur_event_pos = t->last_event_pos; |
62e55dd6 |
989 | t->current_event_time = time; |
990 | t->cur_heart_beat_number = 0; |
991 | t->prev_event_time.tv_sec = 0; |
992 | t->prev_event_time.tv_nsec = 0; |
40331ba8 |
993 | return; |
6cd62ccf |
994 | } |
6cd62ccf |
995 | } |
996 | |
80da81ad |
997 | /***************************************************************************** |
998 | * Seek to the first event with position equal or larger to ep |
18206708 |
999 | * |
1000 | * Modified by Mathieu Desnoyers to used faster offset position instead of |
1001 | * re-reading the whole buffer. |
80da81ad |
1002 | ****************************************************************************/ |
1003 | |
04b44e05 |
1004 | void ltt_tracefile_seek_position(LttTracefile *t, const LttEventPosition *ep) |
80da81ad |
1005 | { |
1006 | //if we are at the right place, just return |
155a7b0a |
1007 | if(likely(t->which_block == ep->block_num && t->which_event == ep->event_num)) |
80da81ad |
1008 | return; |
1009 | |
155a7b0a |
1010 | if(likely(t->which_block == ep->block_num)) updateTracefile(t); |
80da81ad |
1011 | else readBlock(t,ep->block_num); |
18206708 |
1012 | //event offset is available |
155a7b0a |
1013 | if(likely(ep->old_position)){ |
18206708 |
1014 | int err; |
1015 | |
1016 | t->which_event = ep->event_num; |
80da81ad |
1017 | t->cur_event_pos = t->buffer + ep->event_offset; |
18206708 |
1018 | t->prev_event_time = ep->event_time; |
1019 | t->current_event_time = ep->event_time; |
1020 | t->cur_heart_beat_number = ep->heart_beat_number; |
1021 | t->cur_cycle_count = ep->event_cycle_count; |
1022 | |
1023 | /* This is a workaround for fast position seek */ |
1024 | t->last_event_pos = ep->last_event_pos; |
1025 | t->prev_block_end_time = ep->prev_block_end_time; |
1026 | t->prev_event_time = ep->prev_event_time; |
1027 | t->pre_cycle_count = ep->pre_cycle_count; |
1028 | t->count = ep->count; |
2dee981d |
1029 | t->overflow_nsec = ep->overflow_nsec; |
18206708 |
1030 | /* end of workaround */ |
1031 | |
1032 | //update the fields of the current event and go to the next event |
1033 | err = skipEvent(t); |
155a7b0a |
1034 | if(unlikely(err == ERANGE)) g_error("event id is out of range\n"); |
18206708 |
1035 | |
80da81ad |
1036 | return; |
1037 | } |
1038 | |
18206708 |
1039 | //only block number and event index are available |
1040 | //MD: warning : this is slow! |
1041 | g_warning("using slow O(n) tracefile seek position"); |
1042 | |
c02ea99f |
1043 | LttEvent event; |
155a7b0a |
1044 | while(likely(t->which_event < ep->event_num)) ltt_tracefile_read(t, &event); |
80da81ad |
1045 | |
1046 | return; |
1047 | } |
1048 | |
6cd62ccf |
1049 | /***************************************************************************** |
1050 | *Function name |
40331ba8 |
1051 | * ltt_tracefile_read : read the current event, set the pointer to the next |
6cd62ccf |
1052 | *Input params |
1053 | * t : tracefile |
1054 | *Return value |
963b5f2d |
1055 | * LttEvent * : an event to be processed |
6cd62ccf |
1056 | ****************************************************************************/ |
1057 | |
c02ea99f |
1058 | LttEvent *ltt_tracefile_read(LttTracefile *t, LttEvent *event) |
6cd62ccf |
1059 | { |
963b5f2d |
1060 | int err; |
6cd62ccf |
1061 | |
155a7b0a |
1062 | if(unlikely(t->cur_event_pos == t->buffer + t->block_size)){ |
1063 | if(unlikely(t->which_block == t->block_number)){ |
bdc36259 |
1064 | return NULL; |
1065 | } |
1066 | err = readBlock(t, t->which_block + 1); |
155a7b0a |
1067 | if(unlikely(err))g_error("Can not read tracefile"); |
bdc36259 |
1068 | } |
1069 | |
c02ea99f |
1070 | event->event_id = (int)(*(guint16 *)(t->cur_event_pos)); |
155a7b0a |
1071 | if(unlikely(event->event_id == TRACE_TIME_HEARTBEAT)) |
963b5f2d |
1072 | t->cur_heart_beat_number++; |
6cd62ccf |
1073 | |
40331ba8 |
1074 | t->prev_event_time = t->current_event_time; |
62e55dd6 |
1075 | // t->current_event_time = getEventTime(t); |
6cd62ccf |
1076 | |
c02ea99f |
1077 | event->time_delta = *(guint32 *)(t->cur_event_pos + EVENT_ID_SIZE); |
1078 | event->event_time = t->current_event_time; |
1079 | event->event_cycle_count = t->cur_cycle_count; |
963b5f2d |
1080 | |
c02ea99f |
1081 | event->tracefile = t; |
1082 | event->data = t->cur_event_pos + EVENT_HEADER_SIZE; |
1083 | event->which_block = t->which_block; |
1084 | event->which_event = t->which_event; |
6cd62ccf |
1085 | |
18206708 |
1086 | /* This is a workaround for fast position seek */ |
c02ea99f |
1087 | event->last_event_pos = t->last_event_pos; |
1088 | event->prev_block_end_time = t->prev_block_end_time; |
1089 | event->prev_event_time = t->prev_event_time; |
1090 | event->pre_cycle_count = t->pre_cycle_count; |
1091 | event->count = t->count; |
2dee981d |
1092 | event->overflow_nsec = t->overflow_nsec; |
1093 | |
18206708 |
1094 | /* end of workaround */ |
1095 | |
1096 | |
1097 | |
40331ba8 |
1098 | //update the fields of the current event and go to the next event |
1099 | err = skipEvent(t); |
155a7b0a |
1100 | if(unlikely(err == ERANGE)) g_error("event id is out of range\n"); |
40331ba8 |
1101 | |
c02ea99f |
1102 | return event; |
6cd62ccf |
1103 | } |
1104 | |
1105 | /**************************************************************************** |
1106 | *Function name |
1107 | * readFile : wrap function to read from a file |
1108 | *Input Params |
1109 | * fd : file descriptor |
1110 | * buf : buf to contain the content |
1111 | * size : number of bytes to be read |
1112 | * mesg : message to be printed if some thing goes wrong |
1113 | *return value |
1114 | * 0 : success |
1115 | * EIO : can not read from the file |
1116 | ****************************************************************************/ |
1117 | |
1118 | int readFile(int fd, void * buf, size_t size, char * mesg) |
1119 | { |
8d1e6362 |
1120 | ssize_t nbBytes = read(fd, buf, size); |
1121 | |
1122 | if((size_t)nbBytes != size) { |
1123 | if(nbBytes < 0) { |
1124 | perror("Error in readFile : "); |
1125 | } else { |
1126 | g_warning("%s",mesg); |
1127 | } |
6cd62ccf |
1128 | return EIO; |
1129 | } |
1130 | return 0; |
1131 | } |
1132 | |
507915ee |
1133 | /***************************************************************************** |
1134 | *Function name |
1135 | * skipEvent_pre_read_cycles : go to the next event, |
1136 | * update the necessary fields of the current event |
1137 | * increment the cycle counter, save it at the end. |
1138 | *Input params |
1139 | * t : tracefile |
1140 | *return value |
1141 | * 0 : success |
1142 | * ERANGE : event id is out of range |
1143 | ****************************************************************************/ |
1144 | |
1145 | int skipEvent_pre_read_cycles(LttTracefile * t) |
1146 | { |
1147 | int evId; |
1148 | void * evData; |
1149 | LttEventType * evT; |
1150 | LttField * rootFld; |
1151 | |
1152 | evId = (int)(*(guint16 *)(t->cur_event_pos)); |
1153 | evData = t->cur_event_pos + EVENT_HEADER_SIZE; |
1154 | |
1155 | evT = ltt_trace_eventtype_get(t->trace,(unsigned)evId); |
1156 | |
1157 | if(likely(evT)) rootFld = evT->root_field; |
1158 | else return ERANGE; |
1159 | |
1160 | if(likely(rootFld)){ |
1161 | //event has string/sequence or the last event is not the same event |
1162 | if(likely((evT->latest_block!=t->which_block || evT->latest_event!=t->which_event) |
1163 | && rootFld->field_fixed == 0)){ |
1164 | setFieldsOffset(t, evT, evData, t->trace); |
1165 | } |
1166 | t->cur_event_pos += EVENT_HEADER_SIZE + rootFld->field_size; |
1167 | }else t->cur_event_pos += EVENT_HEADER_SIZE; |
1168 | |
1169 | //evT->latest_block = t->which_block; |
1170 | //evT->latest_event = t->which_event; |
1171 | |
1172 | //the next event is in the next block |
1173 | //if(unlikely(evId == TRACE_BLOCK_END)){ |
1174 | // Specify end of buffer reached. |
1175 | // t->cur_event_pos = t->buffer + t->block_size; |
1176 | //}else{ |
1177 | //g_critical("COUNT : %lu", t->cur_cycle_count); |
1178 | //t->which_event++; |
1179 | // t->current_event_time = getEventTime(t); |
1180 | //} |
1181 | |
1182 | return 0; |
1183 | } |
1184 | |
1185 | |
1186 | |
1187 | |
1188 | /***************************************************************************** |
1189 | *Function name |
1190 | * ltt_tracefile_pre_read_cycles : |
1191 | * read the current event, increment the cycle counter |
1192 | *Input params |
1193 | * t : tracefile |
1194 | *Return value |
1195 | * False : end of bloc reached |
1196 | ****************************************************************************/ |
1197 | |
1198 | gboolean ltt_tracefile_pre_read_cycles(LttTracefile *tf) |
1199 | { |
1200 | int err; |
1201 | //LttEvent event; |
1202 | |
1203 | // if(unlikely(t->cur_event_pos == t->buffer + t->block_size)){ |
1204 | //if(unlikely(t->which_block == t->block_number)){ |
1205 | // return FALSE; |
1206 | //} |
1207 | // return FALSE; // end of bloc reached |
1208 | //err = readBlock(t, t->which_block + 1); |
1209 | //if(unlikely(err))g_error("Can not read tracefile"); |
1210 | //} |
1211 | |
1212 | //event.event_id = (int)(*(guint16 *)(t->cur_event_pos)); |
1213 | //if(unlikely(event.event_id == TRACE_TIME_HEARTBEAT)) |
1214 | // t->cur_heart_beat_number++; |
1215 | |
1216 | //t->prev_event_time = t->current_event_time; |
1217 | // t->current_event_time = getEventTime(t); |
1218 | |
1219 | //event.time_delta = *(guint32 *)(t->cur_event_pos + EVENT_ID_SIZE); |
1220 | //event.event_time = t->current_event_time; |
1221 | //event.event_cycle_count = t->cur_cycle_count; |
1222 | |
1223 | //event.tracefile = t; |
1224 | //event.data = t->cur_event_pos + EVENT_HEADER_SIZE; |
1225 | //event.which_block = t->which_block; |
1226 | //event.which_event = t->which_event; |
1227 | |
1228 | /* This is a workaround for fast position seek */ |
1229 | //event.last_event_pos = t->last_event_pos; |
1230 | //event.prev_block_end_time = t->prev_block_end_time; |
1231 | //event.prev_event_time = t->prev_event_time; |
1232 | //event.pre_cycle_count = t->pre_cycle_count; |
1233 | //event.count = t->count; |
1234 | /* end of workaround */ |
1235 | |
1236 | |
1237 | /* Increment the cycle counter for the bloc */ |
1238 | LttTime time; |
1239 | LttCycleCount cycle_count; // cycle count for the current event |
1240 | LttCycleCount lEventTotalCycle; // Total cycles from start for event |
1241 | LttCycleCount lEventNSec; // Total nsecs from start for event |
1242 | LttTime lTimeOffset; // Time offset in struct LttTime |
1243 | guint16 evId; |
1244 | |
1245 | evId = *(guint16 *)tf->cur_event_pos; |
1246 | |
1247 | // Calculate total time in cycles from start of buffer for this event |
1248 | cycle_count = (LttCycleCount)*(guint32 *)(tf->cur_event_pos + EVENT_ID_SIZE); |
1249 | //g_debug("event cycle count %llu", cycle_count); |
ac849774 |
1250 | // |
1251 | //gint64 delta_count = (gint64)(cycle_count - tf->pre_cycle_count); |
1252 | //LttCycleCount res_delta_count; |
1253 | gboolean comp_count = cycle_count < tf->pre_cycle_count; |
507915ee |
1254 | tf->pre_cycle_count = cycle_count; |
a1062ddd |
1255 | |
ac849774 |
1256 | if(unlikely(comp_count)) { |
1257 | /* Wrapped */ |
1258 | tf->count++; //increment wrap count |
1259 | } |
1260 | |
a1062ddd |
1261 | //if(unlikely(cycle_count < tf->pre_cycle_count)) tf->count++; |
ac849774 |
1262 | //if(unlikely(delta_count < 0)) { |
a1062ddd |
1263 | // tf->count++; //increment wrap count |
1264 | // keep in mind that delta_count is negative here. |
ac849774 |
1265 | // res_delta_count = delta_count + 0x100000000ULL ; |
1266 | //} else |
1267 | // res_delta_count = (LttCycleCount)delta_count; |
a1062ddd |
1268 | |
1269 | //cycle_count += (LttCycleCount)tf->count << 32; |
507915ee |
1270 | |
1271 | //FIXME (MD) |
1272 | // if(tf->cur_heart_beat_number > tf->count) |
1273 | // cycle_count += (tf->cur_heart_beat_number - tf->count) << 32; |
1274 | |
ac849774 |
1275 | //tf->cur_cycle_count = tf->cur_cycle_count + res_delta_count; |
1276 | tf->cur_cycle_count = cycle_count | ((LttCycleCount)tf->count << 32); |
cf25ea22 |
1277 | //g_debug("cur cycle count %llu", tf->cur_cycle_count); |
507915ee |
1278 | |
1279 | |
1280 | |
1281 | |
1282 | if(unlikely(evId == TRACE_BLOCK_START)){ |
cf25ea22 |
1283 | //g_debug("BLOCK START"); |
507915ee |
1284 | }else if(unlikely(evId == TRACE_BLOCK_END)){ |
cf25ea22 |
1285 | //g_debug("BLOCK END"); |
507915ee |
1286 | |
1287 | /* The goal of all this pre reading */ |
1288 | tf->a_block_end->cycle_count = tf->cur_cycle_count; |
cf25ea22 |
1289 | //g_debug("end of block cycle count : %llu", tf->cur_cycle_count); |
39ae3eed |
1290 | |
507915ee |
1291 | return FALSE; |
1292 | } |
1293 | |
1294 | //update the fields of the current event and go to the next event |
1295 | err = skipEvent_pre_read_cycles(tf); |
1296 | if(unlikely(err == ERANGE)) g_error("event id is out of range\n"); |
1297 | |
1298 | |
1299 | return TRUE; |
1300 | } |
1301 | |
6cd62ccf |
1302 | /**************************************************************************** |
1303 | *Function name |
1304 | * readBlock : read a block from the file |
1305 | *Input Params |
1306 | * lttdes : ltt trace file |
1307 | * whichBlock : the block which will be read |
1308 | *return value |
1309 | * 0 : success |
1310 | * EINVAL : lseek fail |
1311 | * EIO : can not read from the file |
1312 | ****************************************************************************/ |
1313 | |
963b5f2d |
1314 | int readBlock(LttTracefile * tf, int whichBlock) |
6cd62ccf |
1315 | { |
1316 | off_t nbBytes; |
cbd41522 |
1317 | guint32 lostSize; |
6cd62ccf |
1318 | |
ac849774 |
1319 | /* same block already opened requested */ |
1320 | if((guint)whichBlock == tf->which_block) return 0; |
1321 | |
155a7b0a |
1322 | if(likely(whichBlock - tf->which_block == 1 && tf->which_block != 0)){ |
963b5f2d |
1323 | tf->prev_block_end_time = tf->a_block_end->time; |
40331ba8 |
1324 | tf->prev_event_time = tf->a_block_end->time; |
6cd62ccf |
1325 | }else{ |
1326 | tf->prev_block_end_time.tv_sec = 0; |
1327 | tf->prev_block_end_time.tv_nsec = 0; |
40331ba8 |
1328 | tf->prev_event_time.tv_sec = 0; |
1329 | tf->prev_event_time.tv_nsec = 0; |
6cd62ccf |
1330 | } |
6cd62ccf |
1331 | |
963b5f2d |
1332 | nbBytes=lseek(tf->fd,(off_t)((whichBlock-1)*tf->block_size), SEEK_SET); |
155a7b0a |
1333 | if(unlikely(nbBytes == -1)) return EINVAL; |
6cd62ccf |
1334 | |
155a7b0a |
1335 | if(unlikely(readFile(tf->fd,tf->buffer,tf->block_size,"Unable to read a block"))) |
963b5f2d |
1336 | return EIO; |
6cd62ccf |
1337 | |
963b5f2d |
1338 | tf->a_block_start=(BlockStart *) (tf->buffer + EVENT_HEADER_SIZE); |
cbd41522 |
1339 | lostSize = *(guint32 *)(tf->buffer + tf->block_size - sizeof(guint32)); |
963b5f2d |
1340 | tf->a_block_end=(BlockEnd *)(tf->buffer + tf->block_size - |
1341 | lostSize + EVENT_HEADER_SIZE); |
e37c1372 |
1342 | tf->last_event_pos = tf->buffer + tf->block_size - lostSize; |
6cd62ccf |
1343 | |
6cd62ccf |
1344 | tf->which_block = whichBlock; |
963b5f2d |
1345 | tf->which_event = 1; |
40331ba8 |
1346 | tf->cur_event_pos = tf->buffer;//the beginning of the block, block start ev |
6cd62ccf |
1347 | tf->cur_heart_beat_number = 0; |
507915ee |
1348 | |
1349 | /* read the whole block to precalculate total of cycles in it */ |
1350 | tf->count = 0; |
1351 | tf->pre_cycle_count = 0; |
ac849774 |
1352 | tf->cur_cycle_count = 0; |
cf25ea22 |
1353 | //g_debug("precalculating cycles begin for block %i", whichBlock); |
507915ee |
1354 | while(likely(ltt_tracefile_pre_read_cycles(tf))); |
39ae3eed |
1355 | /* Rough approximation of cycles per usec to calculate |
1356 | * the real block start and end time. |
1357 | */ |
1358 | getCyclePerNsec(tf); |
1359 | /* we are at end position, make end time more precise */ |
2dee981d |
1360 | /* Start overflow_nsec to a negative value : takes account of the |
1361 | * start of block cycle counter */ |
1362 | tf->overflow_nsec = (-((double)tf->a_block_start->cycle_count) |
1363 | * tf->nsec_per_cycle); |
1364 | /* put back the numbers corresponding to end time */ |
1365 | tf->overflow_nsec += tf->one_overflow_nsec * tf->count; |
1366 | |
39ae3eed |
1367 | tf->a_block_end->time = getEventTime(tf); |
1368 | |
cf25ea22 |
1369 | //g_debug("precalculating cycles end for block %i", whichBlock); |
507915ee |
1370 | |
39ae3eed |
1371 | /* put back pointer at the beginning */ |
ac849774 |
1372 | tf->count = 0; |
1373 | tf->pre_cycle_count = 0; |
1374 | tf->cur_cycle_count = 0; |
507915ee |
1375 | tf->which_event = 1; |
1376 | tf->cur_event_pos = tf->buffer;//the beginning of the block, block start ev |
1377 | tf->cur_heart_beat_number = 0; |
963b5f2d |
1378 | |
39ae3eed |
1379 | /* Make start time more precise */ |
2dee981d |
1380 | /* Start overflow_nsec to a negative value : takes account of the |
1381 | * start of block cycle counter */ |
1382 | tf->overflow_nsec = (-((double)tf->a_block_start->cycle_count) |
1383 | * tf->nsec_per_cycle); |
1384 | |
1385 | |
39ae3eed |
1386 | tf->a_block_start->time = getEventTime(tf); |
1387 | |
1388 | /* recalculate the cycles per nsec, with now more precise start and end time |
1389 | */ |
6cd62ccf |
1390 | getCyclePerNsec(tf); |
2dee981d |
1391 | tf->overflow_nsec = (-((double)tf->a_block_start->cycle_count) |
1392 | * tf->nsec_per_cycle); |
1393 | |
1394 | |
6cd62ccf |
1395 | |
62e55dd6 |
1396 | tf->current_event_time = getEventTime(tf); |
40331ba8 |
1397 | |
6cd62ccf |
1398 | return 0; |
1399 | } |
1400 | |
1401 | /***************************************************************************** |
1402 | *Function name |
1403 | * updateTracefile : reinitialize the info of the block which is already |
1404 | * in the buffer |
1405 | *Input params |
1406 | * tf : tracefile |
1407 | ****************************************************************************/ |
1408 | |
963b5f2d |
1409 | void updateTracefile(LttTracefile * tf) |
6cd62ccf |
1410 | { |
963b5f2d |
1411 | tf->which_event = 1; |
40331ba8 |
1412 | tf->cur_event_pos = tf->buffer; |
62e55dd6 |
1413 | tf->current_event_time = getEventTime(tf); |
6cd62ccf |
1414 | tf->cur_heart_beat_number = 0; |
1415 | |
1416 | tf->prev_event_time.tv_sec = 0; |
1417 | tf->prev_event_time.tv_nsec = 0; |
2dee981d |
1418 | tf->count = 0; |
1419 | |
1420 | tf->overflow_nsec = (-((double)tf->a_block_start->cycle_count) |
1421 | * tf->nsec_per_cycle); |
1422 | |
6cd62ccf |
1423 | } |
1424 | |
1425 | /***************************************************************************** |
1426 | *Function name |
1427 | * skipEvent : go to the next event, update the fields of the current event |
1428 | *Input params |
1429 | * t : tracefile |
1430 | *return value |
1431 | * 0 : success |
6cd62ccf |
1432 | * ERANGE : event id is out of range |
1433 | ****************************************************************************/ |
1434 | |
963b5f2d |
1435 | int skipEvent(LttTracefile * t) |
6cd62ccf |
1436 | { |
8d1e6362 |
1437 | int evId; |
6cd62ccf |
1438 | void * evData; |
963b5f2d |
1439 | LttEventType * evT; |
1440 | LttField * rootFld; |
6cd62ccf |
1441 | |
cbd41522 |
1442 | evId = (int)(*(guint16 *)(t->cur_event_pos)); |
6cd62ccf |
1443 | evData = t->cur_event_pos + EVENT_HEADER_SIZE; |
6cd62ccf |
1444 | |
908f42fa |
1445 | evT = ltt_trace_eventtype_get(t->trace,(unsigned)evId); |
47a166fc |
1446 | |
1d1df11d |
1447 | if(likely(evT)) rootFld = evT->root_field; |
908f42fa |
1448 | else return ERANGE; |
6cd62ccf |
1449 | |
1d1df11d |
1450 | if(likely(rootFld)){ |
908f42fa |
1451 | //event has string/sequence or the last event is not the same event |
1d1df11d |
1452 | if(likely((evT->latest_block!=t->which_block || evT->latest_event!=t->which_event) |
1453 | && rootFld->field_fixed == 0)){ |
908f42fa |
1454 | setFieldsOffset(t, evT, evData, t->trace); |
47a166fc |
1455 | } |
908f42fa |
1456 | t->cur_event_pos += EVENT_HEADER_SIZE + rootFld->field_size; |
1457 | }else t->cur_event_pos += EVENT_HEADER_SIZE; |
1458 | |
1459 | evT->latest_block = t->which_block; |
1460 | evT->latest_event = t->which_event; |
1461 | |
6cd62ccf |
1462 | //the next event is in the next block |
1d1df11d |
1463 | if(unlikely(evId == TRACE_BLOCK_END)){ |
bdc36259 |
1464 | t->cur_event_pos = t->buffer + t->block_size; |
6cd62ccf |
1465 | }else{ |
1466 | t->which_event++; |
62e55dd6 |
1467 | t->current_event_time = getEventTime(t); |
6cd62ccf |
1468 | } |
1469 | |
1470 | return 0; |
1471 | } |
1472 | |
18206708 |
1473 | |
6cd62ccf |
1474 | /***************************************************************************** |
1475 | *Function name |
1476 | * getCyclePerNsec : calculate cycles per nsec for current block |
507915ee |
1477 | * MD: should have tracefile_read the whole block, so we know the |
1478 | * total of cycles in it before being called. |
6cd62ccf |
1479 | *Input Params |
1480 | * t : tracefile |
1481 | ****************************************************************************/ |
1482 | |
963b5f2d |
1483 | void getCyclePerNsec(LttTracefile * t) |
6cd62ccf |
1484 | { |
963b5f2d |
1485 | LttTime lBufTotalTime; /* Total time for this buffer */ |
887208b7 |
1486 | double lBufTotalNSec; /* Total time for this buffer in nsecs */ |
1487 | double lBufTotalCycle;/* Total cycles for this buffer */ |
6cd62ccf |
1488 | |
1489 | /* Calculate the total time for this buffer */ |
308711e5 |
1490 | lBufTotalTime = ltt_time_sub(t->a_block_end->time, t->a_block_start->time); |
6cd62ccf |
1491 | |
1492 | /* Calculate the total cycles for this bufffer */ |
e4eced0f |
1493 | lBufTotalCycle = t->a_block_end->cycle_count; |
1494 | lBufTotalCycle -= t->a_block_start->cycle_count; |
6cd62ccf |
1495 | |
1496 | /* Convert the total time to nsecs */ |
887208b7 |
1497 | lBufTotalNSec = ltt_time_to_double(lBufTotalTime); |
6cd62ccf |
1498 | |
887208b7 |
1499 | t->nsec_per_cycle = (double)lBufTotalNSec / (double)lBufTotalCycle; |
2dee981d |
1500 | /* Pre-multiply one overflow (2^32 cycles) by nsec_per_cycle */ |
1501 | t->one_overflow_nsec = t->nsec_per_cycle * (double)0x100000000ULL; |
1502 | |
887208b7 |
1503 | /* See : http://www.azillionmonkeys.com/qed/adiv.html */ |
1504 | // precalculate the reciprocal, so divisions will be really fast. |
1505 | // 2^32-1 == 0xFFFFFFFFULL |
1506 | //{ |
1507 | // double int_res = lBufTotalCycle/lBufTotalNSec; |
1508 | // t->cycles_per_nsec_reciprocal = |
1509 | // ((0xFFFF+int_res)/int_res); |
1510 | //} |
1511 | |
6cd62ccf |
1512 | } |
1513 | |
1514 | /**************************************************************************** |
1515 | *Function name |
1516 | * getEventTime : obtain the time of an event |
887208b7 |
1517 | * NOTE : this function _really_ is on critical path. |
6cd62ccf |
1518 | *Input params |
1519 | * tf : tracefile |
1520 | *Return value |
963b5f2d |
1521 | * LttTime : the time of the event |
6cd62ccf |
1522 | ****************************************************************************/ |
1523 | |
8959a0c8 |
1524 | static inline LttTime getEventTime(LttTracefile * tf) |
6cd62ccf |
1525 | { |
963b5f2d |
1526 | LttTime time; |
1527 | LttCycleCount cycle_count; // cycle count for the current event |
2dee981d |
1528 | //LttCycleCount lEventTotalCycle; // Total cycles from start for event |
1529 | gint64 lEventNSec; // Total nsecs from start for event |
963b5f2d |
1530 | LttTime lTimeOffset; // Time offset in struct LttTime |
cbd41522 |
1531 | guint16 evId; |
e4eced0f |
1532 | |
cbd41522 |
1533 | evId = *(guint16 *)tf->cur_event_pos; |
7d65dfad |
1534 | //if(unlikely(evId == TRACE_BLOCK_START)){ |
1535 | // tf->count = 0; |
1536 | // tf->pre_cycle_count = 0; |
1537 | // tf->cur_cycle_count = tf->a_block_start->cycle_count; |
1538 | // return tf->a_block_start->time; |
1539 | //}//else if(unlikely(evId == TRACE_BLOCK_END)){ |
1540 | //tf->count = 0; |
1541 | //tf->pre_cycle_count = 0; |
1542 | //tf->cur_cycle_count = tf->a_block_end->cycle_count; |
1543 | //return tf->a_block_end->time; |
1544 | //} |
1545 | |
1546 | // Calculate total time in cycles from start of buffer for this event |
1547 | cycle_count = (LttCycleCount)*(guint32 *)(tf->cur_event_pos + EVENT_ID_SIZE); |
1548 | //g_debug("event cycle count %llu", cycle_count); |
ac849774 |
1549 | // |
1550 | //gint64 delta_count = (gint64)(cycle_count - tf->pre_cycle_count); |
1551 | //LttCycleCount res_delta_count; |
1552 | gboolean comp_count = cycle_count < tf->pre_cycle_count; |
7d65dfad |
1553 | tf->pre_cycle_count = cycle_count; |
1554 | |
ac849774 |
1555 | if(unlikely(comp_count)) { |
1556 | /* Wrapped */ |
2dee981d |
1557 | tf->overflow_nsec += tf->one_overflow_nsec; |
1558 | tf->count++; //increment overflow count |
ac849774 |
1559 | } |
1560 | |
7d65dfad |
1561 | //if(unlikely(cycle_count < tf->pre_cycle_count)) tf->count++; |
ac849774 |
1562 | //if(unlikely(delta_count < 0)) { |
7d65dfad |
1563 | // tf->count++; //increment wrap count |
1564 | // keep in mind that delta_count is negative here. |
ac849774 |
1565 | // res_delta_count = delta_count + 0x100000000ULL ; |
1566 | //} else |
1567 | // res_delta_count = (LttCycleCount)delta_count; |
7d65dfad |
1568 | |
1569 | //cycle_count += (LttCycleCount)tf->count << 32; |
40331ba8 |
1570 | |
7d65dfad |
1571 | //FIXME (MD) |
1572 | // if(tf->cur_heart_beat_number > tf->count) |
1573 | // cycle_count += (tf->cur_heart_beat_number - tf->count) << 32; |
1574 | |
ac849774 |
1575 | //tf->cur_cycle_count = tf->cur_cycle_count + res_delta_count; |
2dee981d |
1576 | // |
1577 | // |
cf25ea22 |
1578 | // Total cycle counter of the event. |
2dee981d |
1579 | //tf->cur_cycle_count = cycle_count | ((LttCycleCount)tf->count << 32); |
7d65dfad |
1580 | |
cf25ea22 |
1581 | //g_debug("cur cycle count %llu", tf->cur_cycle_count); |
ac849774 |
1582 | |
cf25ea22 |
1583 | // Total number of cycles since the beginning of the block |
2dee981d |
1584 | //lEventTotalCycle = tf->cur_cycle_count |
1585 | // - tf->a_block_start->cycle_count; |
7d65dfad |
1586 | |
1587 | |
1588 | |
1589 | #if 0 |
e4eced0f |
1590 | // Calculate total time in cycles from start of buffer for this event |
cbd41522 |
1591 | cycle_count = (LttCycleCount)*(guint32 *)(tf->cur_event_pos + EVENT_ID_SIZE); |
e4eced0f |
1592 | |
1d1df11d |
1593 | if(unlikely(cycle_count < tf->pre_cycle_count)) tf->count++; |
dd691a2e |
1594 | tf->pre_cycle_count = cycle_count; |
8959a0c8 |
1595 | cycle_count += (LttCycleCount)tf->count << 32; |
e4eced0f |
1596 | |
507915ee |
1597 | //FIXME (MD) |
e9b34357 |
1598 | // if(tf->cur_heart_beat_number > tf->count) |
507915ee |
1599 | // cycle_count += (tf->cur_heart_beat_number - tf->count) << 32; |
e4eced0f |
1600 | |
1601 | tf->cur_cycle_count = cycle_count; |
1602 | |
1603 | lEventTotalCycle = cycle_count; |
1604 | lEventTotalCycle -= tf->a_block_start->cycle_count; |
7d65dfad |
1605 | #endif //0 |
963b5f2d |
1606 | // Convert it to nsecs |
2dee981d |
1607 | //lEventNSec = (double)lEventTotalCycle * (double)tf->nsec_per_cycle; |
887208b7 |
1608 | //lEventNSec = (tf->cycles_per_nsec_reciprocal * lEventTotalCycle) >> 16; |
1609 | |
963b5f2d |
1610 | // Determine offset in struct LttTime |
2dee981d |
1611 | //lTimeOffset = ltt_time_from_double(lEventNSec); |
1612 | // |
1613 | // We do not substract block start cycle count here, it has already been done |
1614 | // on the overflow_nsec |
1615 | // The result should never be negative, because the cycle count of |
1616 | // the event following the block start should be >= the previous one. |
1617 | lEventNSec = (gint64)((double)cycle_count * tf->nsec_per_cycle) |
1618 | +tf->overflow_nsec; |
1619 | //g_assert(lEventNSec >= 0); |
1620 | lTimeOffset = ltt_time_from_uint64(lEventNSec); |
1621 | |
308711e5 |
1622 | time = ltt_time_add(tf->a_block_start->time, lTimeOffset); |
e4eced0f |
1623 | |
6cd62ccf |
1624 | return time; |
1625 | } |
1626 | |
1627 | /***************************************************************************** |
1628 | *Function name |
1629 | * setFieldsOffset : set offset of the fields |
1630 | *Input params |
1631 | * tracefile : opened trace file |
1632 | * evT : the event type |
1633 | * evD : event data, it may be NULL |
1634 | ****************************************************************************/ |
1635 | |
40331ba8 |
1636 | void setFieldsOffset(LttTracefile *tf,LttEventType *evT,void *evD,LttTrace* t) |
6cd62ccf |
1637 | { |
963b5f2d |
1638 | LttField * rootFld = evT->root_field; |
6cd62ccf |
1639 | // rootFld->base_address = evD; |
1640 | |
1d1df11d |
1641 | if(likely(rootFld)) |
8710c6c7 |
1642 | rootFld->field_size = getFieldtypeSize(tf, evT, 0,0,rootFld, evD,t); |
6cd62ccf |
1643 | } |
1644 | |
1645 | /***************************************************************************** |
1646 | *Function name |
1647 | * getFieldtypeSize: get the size of the field type (primitive type) |
1648 | *Input params |
1649 | * tracefile : opened trace file |
1650 | * evT : event type |
1651 | * offsetRoot : offset from the root |
1652 | * offsetParent : offset from the parrent |
1653 | * fld : field |
1654 | * evD : event data, it may be NULL |
1655 | *Return value |
1656 | * int : size of the field |
1657 | ****************************************************************************/ |
1658 | |
963b5f2d |
1659 | int getFieldtypeSize(LttTracefile * t, LttEventType * evT, int offsetRoot, |
40331ba8 |
1660 | int offsetParent, LttField * fld, void *evD, LttTrace *trace) |
6cd62ccf |
1661 | { |
1662 | int size, size1, element_number, i, offset1, offset2; |
963b5f2d |
1663 | LttType * type = fld->field_type; |
6cd62ccf |
1664 | |
1d1df11d |
1665 | if(likely(t)){ |
49f3c39e |
1666 | if(unlikely(evT->latest_block==t->which_block && |
1667 | evT->latest_event==t->which_event)){ |
963b5f2d |
1668 | return fld->field_size; |
1669 | } |
1670 | } |
6cd62ccf |
1671 | |
1d1df11d |
1672 | if(likely(fld->field_fixed == 1)){ |
6cd62ccf |
1673 | if(fld == evT->root_field) return fld->field_size; |
1674 | } |
1675 | |
cf74a6f1 |
1676 | switch(type->type_class) { |
1677 | case LTT_ARRAY: |
1678 | element_number = (int) type->element_number; |
1679 | if(fld->field_fixed == -1){ |
1680 | size = getFieldtypeSize(t, evT, offsetRoot, |
1681 | 0,fld->child[0], NULL, trace); |
1682 | if(size == 0){ //has string or sequence |
1683 | fld->field_fixed = 0; |
1684 | }else{ |
1685 | fld->field_fixed = 1; |
1686 | size *= element_number; |
1687 | } |
1688 | }else if(fld->field_fixed == 0){// has string or sequence |
1689 | size = 0; |
1690 | for(i=0;i<element_number;i++){ |
1691 | size += getFieldtypeSize(t, evT, offsetRoot+size,size, |
1692 | fld->child[0], evD+size, trace); |
1693 | } |
1694 | }else size = fld->field_size; |
1695 | break; |
1696 | |
1697 | case LTT_SEQUENCE: |
1698 | size1 = (int) ltt_type_size(trace, type); |
1699 | if(fld->field_fixed == -1){ |
1700 | fld->sequ_number_size = size1; |
1701 | fld->field_fixed = 0; |
1702 | size = getFieldtypeSize(t, evT, offsetRoot, |
1703 | 0,fld->child[0], NULL, trace); |
1704 | fld->element_size = size; |
1705 | }else{//0: sequence |
1706 | element_number = getIntNumber(size1,evD); |
1707 | type->element_number = element_number; |
1708 | if(fld->element_size > 0){ |
1709 | size = element_number * fld->element_size; |
1710 | }else{//sequence has string or sequence |
1711 | size = 0; |
1712 | for(i=0;i<element_number;i++){ |
1713 | size += getFieldtypeSize(t, evT, offsetRoot+size+size1,size+size1, |
1714 | fld->child[0], evD+size+size1, trace); |
1715 | } |
1716 | } |
1717 | size += size1; |
1718 | } |
1719 | break; |
1720 | |
1721 | case LTT_STRING: |
1722 | size = 0; |
1723 | if(fld->field_fixed == -1){ |
1724 | fld->field_fixed = 0; |
1725 | }else{//0: string |
6e8c19d4 |
1726 | /* Hope my implementation is faster than strlen (Mathieu) */ |
1727 | char *ptr=(char*)evD; |
1728 | while(*ptr != '\0') ptr++; |
1729 | size = ptr - (char*)evD + 1; //include end : '\0' |
cf74a6f1 |
1730 | } |
1731 | break; |
1732 | |
1733 | case LTT_STRUCT: |
1734 | element_number = (int) type->element_number; |
1735 | size = 0; |
1d1df11d |
1736 | if(fld->field_fixed == -1){ |
cf74a6f1 |
1737 | offset1 = offsetRoot; |
1738 | offset2 = 0; |
1739 | for(i=0;i<element_number;i++){ |
1740 | size1=getFieldtypeSize(t, evT,offset1,offset2, |
1741 | fld->child[i], NULL, trace); |
1742 | if(size1 > 0 && size >= 0){ |
1743 | size += size1; |
1744 | if(offset1 >= 0) offset1 += size1; |
1745 | offset2 += size1; |
1746 | }else{ |
1747 | size = -1; |
1748 | offset1 = -1; |
1749 | offset2 = -1; |
1750 | } |
1751 | } |
1752 | if(size == -1){ |
1753 | fld->field_fixed = 0; |
1754 | size = 0; |
1755 | }else fld->field_fixed = 1; |
1756 | }else if(fld->field_fixed == 0){ |
1757 | offset1 = offsetRoot; |
1758 | offset2 = 0; |
1759 | for(i=0;i<element_number;i++){ |
1760 | size=getFieldtypeSize(t,evT,offset1,offset2, |
1761 | fld->child[i],evD+offset2, trace); |
1762 | offset1 += size; |
1763 | offset2 += size; |
1764 | } |
1765 | size = offset2; |
1766 | }else size = fld->field_size; |
1767 | break; |
1768 | |
1769 | default: |
1770 | if(fld->field_fixed == -1){ |
1771 | size = (int) ltt_type_size(trace, type); |
1772 | fld->field_fixed = 1; |
1773 | }else size = fld->field_size; |
1774 | break; |
1775 | } |
1776 | |
1777 | |
1778 | |
1779 | #if 0 |
6cd62ccf |
1780 | if(type->type_class != LTT_STRUCT && type->type_class != LTT_ARRAY && |
1781 | type->type_class != LTT_SEQUENCE && type->type_class != LTT_STRING){ |
1782 | if(fld->field_fixed == -1){ |
40331ba8 |
1783 | size = (int) ltt_type_size(trace, type); |
6cd62ccf |
1784 | fld->field_fixed = 1; |
1785 | }else size = fld->field_size; |
1786 | |
1787 | }else if(type->type_class == LTT_ARRAY){ |
1788 | element_number = (int) type->element_number; |
1789 | if(fld->field_fixed == -1){ |
40331ba8 |
1790 | size = getFieldtypeSize(t, evT, offsetRoot,0,fld->child[0], NULL, trace); |
6cd62ccf |
1791 | if(size == 0){ //has string or sequence |
1792 | fld->field_fixed = 0; |
1793 | }else{ |
1794 | fld->field_fixed = 1; |
1795 | size *= element_number; |
1796 | } |
1797 | }else if(fld->field_fixed == 0){// has string or sequence |
1798 | size = 0; |
1799 | for(i=0;i<element_number;i++){ |
1800 | size += getFieldtypeSize(t, evT, offsetRoot+size,size, |
40331ba8 |
1801 | fld->child[0], evD+size, trace); |
6cd62ccf |
1802 | } |
1803 | }else size = fld->field_size; |
1804 | |
1805 | }else if(type->type_class == LTT_SEQUENCE){ |
40331ba8 |
1806 | size1 = (int) ltt_type_size(trace, type); |
6cd62ccf |
1807 | if(fld->field_fixed == -1){ |
908f42fa |
1808 | fld->sequ_number_size = size1; |
6cd62ccf |
1809 | fld->field_fixed = 0; |
40331ba8 |
1810 | size = getFieldtypeSize(t, evT, offsetRoot,0,fld->child[0], NULL, trace); |
6cd62ccf |
1811 | fld->element_size = size; |
1812 | }else{//0: sequence |
1813 | element_number = getIntNumber(size1,evD); |
1814 | type->element_number = element_number; |
1815 | if(fld->element_size > 0){ |
1816 | size = element_number * fld->element_size; |
1817 | }else{//sequence has string or sequence |
1818 | size = 0; |
1819 | for(i=0;i<element_number;i++){ |
1820 | size += getFieldtypeSize(t, evT, offsetRoot+size+size1,size+size1, |
40331ba8 |
1821 | fld->child[0], evD+size+size1, trace); |
6cd62ccf |
1822 | } |
1823 | } |
1824 | size += size1; |
1825 | } |
1826 | |
1827 | }else if(type->type_class == LTT_STRING){ |
1828 | size = 0; |
1829 | if(fld->field_fixed == -1){ |
1830 | fld->field_fixed = 0; |
1831 | }else{//0: string |
47a166fc |
1832 | size = strlen((char*)evD) + 1; //include end : '\0' |
6cd62ccf |
1833 | } |
1834 | |
1835 | }else if(type->type_class == LTT_STRUCT){ |
1836 | element_number = (int) type->element_number; |
1837 | size = 0; |
1838 | if(fld->field_fixed == -1){ |
1839 | offset1 = offsetRoot; |
1840 | offset2 = 0; |
1841 | for(i=0;i<element_number;i++){ |
40331ba8 |
1842 | size1=getFieldtypeSize(t, evT,offset1,offset2, fld->child[i], NULL, trace); |
6cd62ccf |
1843 | if(size1 > 0 && size >= 0){ |
1844 | size += size1; |
1845 | if(offset1 >= 0) offset1 += size1; |
1846 | offset2 += size1; |
1847 | }else{ |
1848 | size = -1; |
1849 | offset1 = -1; |
1850 | offset2 = -1; |
1851 | } |
1852 | } |
1853 | if(size == -1){ |
1854 | fld->field_fixed = 0; |
1855 | size = 0; |
1856 | }else fld->field_fixed = 1; |
1857 | }else if(fld->field_fixed == 0){ |
1858 | offset1 = offsetRoot; |
1859 | offset2 = 0; |
1860 | for(i=0;i<element_number;i++){ |
40331ba8 |
1861 | size=getFieldtypeSize(t,evT,offset1,offset2,fld->child[i],evD+offset2, trace); |
6cd62ccf |
1862 | offset1 += size; |
1863 | offset2 += size; |
1864 | } |
1865 | size = offset2; |
1866 | }else size = fld->field_size; |
1867 | } |
cf74a6f1 |
1868 | #endif //0 |
6cd62ccf |
1869 | |
1870 | fld->offset_root = offsetRoot; |
1871 | fld->offset_parent = offsetParent; |
1872 | if(!evD){ |
1873 | fld->fixed_root = (offsetRoot==-1) ? 0 : 1; |
1874 | fld->fixed_parent = (offsetParent==-1) ? 0 : 1; |
1875 | } |
1876 | fld->field_size = size; |
1877 | |
1878 | return size; |
1879 | } |
1880 | |
6cd62ccf |
1881 | |
1882 | /***************************************************************************** |
1883 | *Function name |
1884 | * getIntNumber : get an integer number |
1885 | *Input params |
1886 | * size : the size of the integer |
1887 | * evD : the event data |
1888 | *Return value |
cf74a6f1 |
1889 | * gint64 : a 64 bits integer |
6cd62ccf |
1890 | ****************************************************************************/ |
1891 | |
cf74a6f1 |
1892 | gint64 getIntNumber(int size, void *evD) |
6cd62ccf |
1893 | { |
cbd41522 |
1894 | gint64 i; |
cf74a6f1 |
1895 | |
1896 | switch(size) { |
1897 | case 1: i = *(gint8 *)evD; break; |
1898 | case 2: i = *(gint16 *)evD; break; |
1899 | case 4: i = *(gint32 *)evD; break; |
1900 | case 8: i = *(gint64 *)evD; break; |
1901 | default: i = *(gint64 *)evD; |
1902 | g_critical("getIntNumber : integer size %d unknown", size); |
1903 | break; |
1904 | } |
1905 | |
1906 | #if 0 |
cbd41522 |
1907 | if(size == 1) i = *(gint8 *)evD; |
1908 | else if(size == 2) i = *(gint16 *)evD; |
1909 | else if(size == 4) i = *(gint32 *)evD; |
1910 | else if(size == 8) i = *(gint64 *)evD; |
cf74a6f1 |
1911 | #endif //0 |
1912 | |
1913 | return (gint64)i; |
6cd62ccf |
1914 | } |
1915 | |
1916 | /***************************************************************************** |
1917 | *Function name |
1918 | * getDataEndianType : get the data type size and endian type of the local |
1919 | * machine |
1920 | *Input params |
1921 | * size : size of data type |
1922 | * endian : endian type, little or big |
1923 | ****************************************************************************/ |
1924 | |
963b5f2d |
1925 | void getDataEndianType(LttArchSize * size, LttArchEndian * endian) |
6cd62ccf |
1926 | { |
1927 | int i = 1; |
1928 | char c = (char) i; |
1929 | int sizeInt=sizeof(int), sizeLong=sizeof(long), sizePointer=sizeof(void *); |
1930 | |
1931 | if(c == 1) *endian = LTT_LITTLE_ENDIAN; |
1932 | else *endian = LTT_BIG_ENDIAN; |
1933 | |
1934 | if(sizeInt == 2 && sizeLong == 4 && sizePointer == 4) |
1935 | *size = LTT_LP32; |
1936 | else if(sizeInt == 4 && sizeLong == 4 && sizePointer == 4) |
1937 | *size = LTT_ILP32; |
1938 | else if(sizeInt == 4 && sizeLong == 8 && sizePointer == 8) |
1939 | *size = LTT_LP64; |
1940 | else if(sizeInt == 8 && sizeLong == 8 && sizePointer == 8) |
1941 | *size = LTT_ILP64; |
1942 | else *size = LTT_UNKNOWN; |
1943 | } |
1944 | |
a5dcde2f |
1945 | /* get the node name of the system */ |
1946 | |
1947 | char * ltt_trace_system_description_node_name (LttSystemDescription * s) |
1948 | { |
1949 | return s->node_name; |
1950 | } |
1951 | |
1952 | |
1953 | /* get the domain name of the system */ |
1954 | |
1955 | char * ltt_trace_system_description_domain_name (LttSystemDescription * s) |
1956 | { |
1957 | return s->domain_name; |
1958 | } |
1959 | |
1960 | |
1961 | /* get the description of the system */ |
1962 | |
1963 | char * ltt_trace_system_description_description (LttSystemDescription * s) |
1964 | { |
1965 | return s->description; |
1966 | } |
1967 | |
1968 | |
1969 | /* get the start time of the trace */ |
1970 | |
1971 | LttTime ltt_trace_system_description_trace_start_time(LttSystemDescription *s) |
1972 | { |
1973 | return s->trace_start; |
1974 | } |
1975 | |
18206708 |
1976 | |
1977 | LttTracefile *ltt_tracefile_new() |
1978 | { |
1979 | return g_new(LttTracefile, 1); |
1980 | } |
1981 | |
1982 | void ltt_tracefile_destroy(LttTracefile *tf) |
1983 | { |
1984 | g_free(tf); |
1985 | } |
1986 | |
1987 | void ltt_tracefile_copy(LttTracefile *dest, const LttTracefile *src) |
1988 | { |
1989 | *dest = *src; |
1990 | } |
1991 | |