449cb9d7 |
1 | /* This file is part of the Linux Trace Toolkit viewer |
3aee1200 |
2 | * Copyright (C) 2005 Mathieu Desnoyers |
449cb9d7 |
3 | * |
3aee1200 |
4 | * Complete rewrite from the original version made by XangXiu Yang. |
5 | * |
449cb9d7 |
6 | * This program is free software; you can redistribute it and/or modify |
7 | * it under the terms of the GNU General Public License Version 2 as |
8 | * published by the Free Software Foundation; |
9 | * |
10 | * This program is distributed in the hope that it will be useful, |
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
13 | * GNU General Public License for more details. |
14 | * |
15 | * You should have received a copy of the GNU General Public License |
16 | * along with this program; if not, write to the Free Software |
17 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, |
18 | * MA 02111-1307, USA. |
19 | */ |
20 | |
4e4d11b3 |
21 | #ifdef HAVE_CONFIG_H |
22 | #include <config.h> |
23 | #endif |
24 | |
6cd62ccf |
25 | #include <stdio.h> |
26 | #include <fcntl.h> |
8d1e6362 |
27 | #include <string.h> |
28 | #include <dirent.h> |
6cd62ccf |
29 | #include <sys/stat.h> |
30 | #include <sys/types.h> |
8d1e6362 |
31 | #include <errno.h> |
32 | #include <unistd.h> |
42db9bf1 |
33 | #include <math.h> |
cdf90f40 |
34 | #include <glib.h> |
3aee1200 |
35 | #include <malloc.h> |
36 | #include <sys/mman.h> |
6cd62ccf |
37 | |
ef35d837 |
38 | // For realpath |
39 | #include <limits.h> |
40 | #include <stdlib.h> |
41 | |
42 | |
6cd62ccf |
43 | #include "parser.h" |
a5dcde2f |
44 | #include <ltt/ltt.h> |
45 | #include "ltt-private.h" |
963b5f2d |
46 | #include <ltt/trace.h> |
a5dcde2f |
47 | #include <ltt/facility.h> |
c02ea99f |
48 | #include <ltt/event.h> |
8d1e6362 |
49 | #include <ltt/type.h> |
1a2ceb63 |
50 | #include <ltt/ltt-types.h> |
6cd62ccf |
51 | |
3aee1200 |
52 | |
53 | /* Facility names used in this file */ |
54 | |
55 | GQuark LTT_FACILITY_NAME_HEARTBEAT, |
56 | LTT_EVENT_NAME_HEARTBEAT; |
57 | GQuark LTT_TRACEFILE_NAME_FACILITIES; |
58 | |
86005ded |
59 | #ifndef g_open |
60 | #define g_open open |
61 | #endif |
62 | |
63 | |
51b5991e |
64 | #define __UNUSED__ __attribute__((__unused__)) |
6cd62ccf |
65 | |
a1062ddd |
66 | #define g_info(format...) g_log (G_LOG_DOMAIN, G_LOG_LEVEL_INFO, format) |
3aee1200 |
67 | |
68 | #ifndef g_debug |
a1062ddd |
69 | #define g_debug(format...) g_log (G_LOG_DOMAIN, G_LOG_LEVEL_DEBUG, format) |
3aee1200 |
70 | #endif |
a1062ddd |
71 | |
45e14832 |
72 | #define g_close close |
8959a0c8 |
73 | |
b77d1b57 |
74 | /* Those macros must be called from within a function where page_size is a known |
75 | * variable */ |
76 | #define PAGE_MASK (~(page_size-1)) |
77 | #define PAGE_ALIGN(addr) (((addr)+page_size-1)&PAGE_MASK) |
78 | |
6cd62ccf |
79 | /* set the offset of the fields belonging to the event, |
80 | need the information of the archecture */ |
3aee1200 |
81 | void set_fields_offsets(LttTracefile *tf, LttEventType *event_type); |
eed2ef37 |
82 | //size_t get_fields_offsets(LttTracefile *tf, LttEventType *event_type, void *data); |
6cd62ccf |
83 | |
3aee1200 |
84 | /* get the size of the field type according to |
85 | * The facility size information. */ |
86 | static inline void preset_field_type_size(LttTracefile *tf, |
87 | LttEventType *event_type, |
88 | off_t offset_root, off_t offset_parent, |
89 | enum field_status *fixed_root, enum field_status *fixed_parent, |
90 | LttField *field); |
6cd62ccf |
91 | |
3aee1200 |
92 | /* map a fixed size or a block information from the file (fd) */ |
93 | static gint map_block(LttTracefile * tf, guint block_num); |
94 | |
95 | /* calculate nsec per cycles for current block */ |
96 | static double calc_nsecs_per_cycle(LttTracefile * t); |
6cd62ccf |
97 | |
3aee1200 |
98 | /* go to the next event */ |
99 | static int ltt_seek_next_event(LttTracefile *tf); |
6cd62ccf |
100 | |
eed2ef37 |
101 | void ltt_update_event_size(LttTracefile *tf); |
102 | |
3aee1200 |
103 | #if 0 |
43da6a59 |
104 | /* Functions to parse system.xml file (using glib xml parser) */ |
51b5991e |
105 | static void parser_start_element (GMarkupParseContext __UNUSED__ *context, |
43da6a59 |
106 | const gchar *element_name, |
107 | const gchar **attribute_names, |
108 | const gchar **attribute_values, |
109 | gpointer user_data, |
110 | GError **error) |
111 | { |
112 | int i=0; |
113 | LttSystemDescription* des = (LttSystemDescription* )user_data; |
114 | if(strcmp("system", element_name)){ |
2a74fbf4 |
115 | *error = g_error_new(G_MARKUP_ERROR, |
116 | G_LOG_LEVEL_WARNING, |
117 | "This is not system.xml file"); |
118 | return; |
43da6a59 |
119 | } |
120 | |
121 | while(attribute_names[i]){ |
122 | if(strcmp("node_name", attribute_names[i])==0){ |
123 | des->node_name = g_strdup(attribute_values[i]); |
124 | }else if(strcmp("domainname", attribute_names[i])==0){ |
125 | des->domain_name = g_strdup(attribute_values[i]); |
126 | }else if(strcmp("cpu", attribute_names[i])==0){ |
127 | des->nb_cpu = atoi(attribute_values[i]); |
128 | }else if(strcmp("arch_size", attribute_names[i])==0){ |
129 | if(strcmp(attribute_values[i],"LP32") == 0) des->size = LTT_LP32; |
130 | else if(strcmp(attribute_values[i],"ILP32") == 0) des->size = LTT_ILP32; |
131 | else if(strcmp(attribute_values[i],"LP64") == 0) des->size = LTT_LP64; |
132 | else if(strcmp(attribute_values[i],"ILP64") == 0) des->size = LTT_ILP64; |
133 | else if(strcmp(attribute_values[i],"UNKNOWN") == 0) des->size = LTT_UNKNOWN; |
134 | }else if(strcmp("endian", attribute_names[i])==0){ |
135 | if(strcmp(attribute_values[i],"LITTLE_ENDIAN") == 0) |
136 | des->endian = LTT_LITTLE_ENDIAN; |
137 | else if(strcmp(attribute_values[i],"BIG_ENDIAN") == 0) |
138 | des->endian = LTT_BIG_ENDIAN; |
139 | }else if(strcmp("kernel_name", attribute_names[i])==0){ |
140 | des->kernel_name = g_strdup(attribute_values[i]); |
141 | }else if(strcmp("kernel_release", attribute_names[i])==0){ |
142 | des->kernel_release = g_strdup(attribute_values[i]); |
143 | }else if(strcmp("kernel_version", attribute_names[i])==0){ |
144 | des->kernel_version = g_strdup(attribute_values[i]); |
145 | }else if(strcmp("machine", attribute_names[i])==0){ |
146 | des->machine = g_strdup(attribute_values[i]); |
147 | }else if(strcmp("processor", attribute_names[i])==0){ |
148 | des->processor = g_strdup(attribute_values[i]); |
149 | }else if(strcmp("hardware_platform", attribute_names[i])==0){ |
150 | des->hardware_platform = g_strdup(attribute_values[i]); |
151 | }else if(strcmp("operating_system", attribute_names[i])==0){ |
152 | des->operating_system = g_strdup(attribute_values[i]); |
153 | }else if(strcmp("ltt_major_version", attribute_names[i])==0){ |
154 | des->ltt_major_version = atoi(attribute_values[i]); |
155 | }else if(strcmp("ltt_minor_version", attribute_names[i])==0){ |
156 | des->ltt_minor_version = atoi(attribute_values[i]); |
157 | }else if(strcmp("ltt_block_size", attribute_names[i])==0){ |
158 | des->ltt_block_size = atoi(attribute_values[i]); |
159 | }else{ |
2a74fbf4 |
160 | *error = g_error_new(G_MARKUP_ERROR, |
161 | G_LOG_LEVEL_WARNING, |
162 | "Not a valid attribute"); |
163 | return; |
43da6a59 |
164 | } |
165 | i++; |
166 | } |
167 | } |
168 | |
51b5991e |
169 | static void parser_characters (GMarkupParseContext __UNUSED__ *context, |
43da6a59 |
170 | const gchar *text, |
51b5991e |
171 | gsize __UNUSED__ text_len, |
43da6a59 |
172 | gpointer user_data, |
51b5991e |
173 | GError __UNUSED__ **error) |
43da6a59 |
174 | { |
175 | LttSystemDescription* des = (LttSystemDescription* )user_data; |
176 | des->description = g_strdup(text); |
177 | } |
3aee1200 |
178 | #endif //0 |
77175651 |
179 | LttFacility *ltt_trace_get_facility_by_num(LttTrace *t, |
3aee1200 |
180 | guint num) |
181 | { |
182 | g_assert(num < t->facilities_by_num->len); |
183 | |
184 | return &g_array_index(t->facilities_by_num, LttFacility, num); |
185 | |
186 | } |
43da6a59 |
187 | |
b56dcdf2 |
188 | guint ltt_trace_get_num_cpu(LttTrace *t) |
189 | { |
190 | return t->num_cpu; |
191 | } |
192 | |
43da6a59 |
193 | |
6cd62ccf |
194 | /***************************************************************************** |
195 | *Function name |
963b5f2d |
196 | * ltt_tracefile_open : open a trace file, construct a LttTracefile |
6cd62ccf |
197 | *Input params |
963b5f2d |
198 | * t : the trace containing the tracefile |
199 | * fileName : path name of the trace file |
3aee1200 |
200 | * tf : the tracefile structure |
6cd62ccf |
201 | *Return value |
3aee1200 |
202 | * : 0 for success, -1 otherwise. |
6cd62ccf |
203 | ****************************************************************************/ |
204 | |
3aee1200 |
205 | gint ltt_tracefile_open(LttTrace *t, gchar * fileName, LttTracefile *tf) |
6cd62ccf |
206 | { |
963b5f2d |
207 | struct stat lTDFStat; /* Trace data file status */ |
3aee1200 |
208 | struct ltt_block_start_header *header; |
b77d1b57 |
209 | int page_size = getpagesize(); |
6cd62ccf |
210 | |
211 | //open the file |
d3d34f49 |
212 | tf->long_name = g_quark_from_string(fileName); |
963b5f2d |
213 | tf->trace = t; |
3865ea09 |
214 | tf->fd = open(fileName, O_RDONLY); |
6cd62ccf |
215 | if(tf->fd < 0){ |
2a74fbf4 |
216 | g_warning("Unable to open input data file %s\n", fileName); |
3aee1200 |
217 | goto end; |
6cd62ccf |
218 | } |
219 | |
220 | // Get the file's status |
221 | if(fstat(tf->fd, &lTDFStat) < 0){ |
2a74fbf4 |
222 | g_warning("Unable to get the status of the input data file %s\n", fileName); |
3aee1200 |
223 | goto close_file; |
6cd62ccf |
224 | } |
225 | |
226 | // Is the file large enough to contain a trace |
3aee1200 |
227 | if(lTDFStat.st_size < (off_t)(sizeof(struct ltt_block_start_header))){ |
8710c6c7 |
228 | g_print("The input data file %s does not contain a trace\n", fileName); |
3aee1200 |
229 | goto close_file; |
230 | } |
231 | |
232 | /* Temporarily map the buffer start header to get trace information */ |
233 | /* Multiple of pages aligned head */ |
b77d1b57 |
234 | tf->buffer.head = mmap(0, |
235 | PAGE_ALIGN(sizeof(struct ltt_block_start_header)), PROT_READ, |
3aee1200 |
236 | MAP_PRIVATE, tf->fd, 0); |
3865ea09 |
237 | if(tf->buffer.head == MAP_FAILED) { |
3aee1200 |
238 | perror("Error in allocating memory for buffer of tracefile"); |
239 | goto close_file; |
6cd62ccf |
240 | } |
3865ea09 |
241 | g_assert( ( (guint)tf->buffer.head&(8-1) ) == 0); // make sure it's aligned. |
3aee1200 |
242 | |
243 | header = (struct ltt_block_start_header*)tf->buffer.head; |
6cd62ccf |
244 | |
3aee1200 |
245 | if(header->trace.magic_number == LTT_MAGIC_NUMBER) |
246 | tf->reverse_bo = 0; |
247 | else if(header->trace.magic_number == LTT_REV_MAGIC_NUMBER) |
248 | tf->reverse_bo = 1; |
249 | else /* invalid magic number, bad tracefile ! */ |
250 | goto unmap_file; |
251 | |
6cd62ccf |
252 | //store the size of the file |
253 | tf->file_size = lTDFStat.st_size; |
f628823c |
254 | tf->buf_size = ltt_get_uint32(LTT_GET_BO(tf), &header->buf_size); |
255 | tf->num_blocks = tf->file_size / tf->buf_size; |
256 | |
257 | if(munmap(tf->buffer.head, |
258 | PAGE_ALIGN(sizeof(struct ltt_block_start_header)))) { |
259 | g_warning("unmap size : %u\n", |
260 | PAGE_ALIGN(sizeof(struct ltt_block_start_header))); |
261 | perror("munmap error"); |
262 | g_assert(0); |
263 | } |
3aee1200 |
264 | tf->buffer.head = NULL; |
6cd62ccf |
265 | |
963b5f2d |
266 | //read the first block |
3aee1200 |
267 | if(map_block(tf,0)) { |
268 | perror("Cannot map block for tracefile"); |
269 | goto close_file; |
270 | } |
271 | |
272 | return 0; |
6cd62ccf |
273 | |
3aee1200 |
274 | /* Error */ |
275 | unmap_file: |
f628823c |
276 | if(munmap(tf->buffer.head, |
277 | PAGE_ALIGN(sizeof(struct ltt_block_start_header)))) { |
278 | g_warning("unmap size : %u\n", |
279 | PAGE_ALIGN(sizeof(struct ltt_block_start_header))); |
280 | perror("munmap error"); |
281 | g_assert(0); |
282 | } |
3aee1200 |
283 | close_file: |
3865ea09 |
284 | close(tf->fd); |
3aee1200 |
285 | end: |
286 | return -1; |
6cd62ccf |
287 | } |
288 | |
d3d34f49 |
289 | LttTrace *ltt_tracefile_get_trace(LttTracefile *tf) |
290 | { |
291 | return tf->trace; |
292 | } |
293 | |
3aee1200 |
294 | #if 0 |
6cd62ccf |
295 | /***************************************************************************** |
963b5f2d |
296 | *Open control and per cpu tracefiles |
6cd62ccf |
297 | ****************************************************************************/ |
298 | |
45e14832 |
299 | void ltt_tracefile_open_cpu(LttTrace *t, gchar * tracefile_name) |
6cd62ccf |
300 | { |
963b5f2d |
301 | LttTracefile * tf; |
302 | tf = ltt_tracefile_open(t,tracefile_name); |
4a6c8e36 |
303 | if(!tf) return; |
963b5f2d |
304 | t->per_cpu_tracefile_number++; |
305 | g_ptr_array_add(t->per_cpu_tracefiles, tf); |
6cd62ccf |
306 | } |
307 | |
45e14832 |
308 | gint ltt_tracefile_open_control(LttTrace *t, gchar * control_name) |
6cd62ccf |
309 | { |
963b5f2d |
310 | LttTracefile * tf; |
c02ea99f |
311 | LttEvent ev; |
963b5f2d |
312 | LttFacility * f; |
963b5f2d |
313 | void * pos; |
314 | FacilityLoad fLoad; |
8d1e6362 |
315 | unsigned int i; |
963b5f2d |
316 | |
317 | tf = ltt_tracefile_open(t,control_name); |
2a74fbf4 |
318 | if(!tf) { |
319 | g_warning("ltt_tracefile_open_control : bad file descriptor"); |
320 | return -1; |
321 | } |
963b5f2d |
322 | t->control_tracefile_number++; |
323 | g_ptr_array_add(t->control_tracefiles,tf); |
324 | |
325 | //parse facilities tracefile to get base_id |
542ceddd |
326 | if(strcmp(&control_name[strlen(control_name)-10],"facilities") ==0){ |
963b5f2d |
327 | while(1){ |
c02ea99f |
328 | if(!ltt_tracefile_read(tf,&ev)) return 0; // end of file |
40331ba8 |
329 | |
c02ea99f |
330 | if(ev.event_id == TRACE_FACILITY_LOAD){ |
331 | pos = ev.data; |
45e14832 |
332 | fLoad.name = (gchar*)pos; |
47a166fc |
333 | fLoad.checksum = *(LttChecksum*)(pos + strlen(fLoad.name)); |
cbd41522 |
334 | fLoad.base_code = *(guint32 *)(pos + strlen(fLoad.name) + sizeof(LttChecksum)); |
963b5f2d |
335 | |
336 | for(i=0;i<t->facility_number;i++){ |
337 | f = (LttFacility*)g_ptr_array_index(t->facilities,i); |
338 | if(strcmp(f->name,fLoad.name)==0 && fLoad.checksum==f->checksum){ |
339 | f->base_id = fLoad.base_code; |
340 | break; |
341 | } |
342 | } |
2a74fbf4 |
343 | if(i==t->facility_number) { |
8d1e6362 |
344 | g_warning("Facility: %s, checksum: %u is not found", |
345 | fLoad.name,(unsigned int)fLoad.checksum); |
2a74fbf4 |
346 | return -1; |
347 | } |
c02ea99f |
348 | }else if(ev.event_id == TRACE_BLOCK_START){ |
40331ba8 |
349 | continue; |
c02ea99f |
350 | }else if(ev.event_id == TRACE_BLOCK_END){ |
40331ba8 |
351 | break; |
2a74fbf4 |
352 | }else { |
8d1e6362 |
353 | g_warning("Not valid facilities trace file"); |
2a74fbf4 |
354 | return -1; |
355 | } |
963b5f2d |
356 | } |
357 | } |
2a74fbf4 |
358 | return 0; |
6cd62ccf |
359 | } |
3aee1200 |
360 | #endif //0 |
6cd62ccf |
361 | |
362 | /***************************************************************************** |
363 | *Function name |
963b5f2d |
364 | * ltt_tracefile_close: close a trace file, |
6cd62ccf |
365 | *Input params |
963b5f2d |
366 | * t : tracefile which will be closed |
6cd62ccf |
367 | ****************************************************************************/ |
368 | |
963b5f2d |
369 | void ltt_tracefile_close(LttTracefile *t) |
6cd62ccf |
370 | { |
f628823c |
371 | int page_size = getpagesize(); |
372 | |
3aee1200 |
373 | if(t->buffer.head != NULL) |
f628823c |
374 | if(munmap(t->buffer.head, PAGE_ALIGN(t->buf_size))) { |
375 | g_warning("unmap size : %u\n", |
376 | PAGE_ALIGN(t->buf_size)); |
377 | perror("munmap error"); |
378 | g_assert(0); |
379 | } |
380 | |
3865ea09 |
381 | close(t->fd); |
963b5f2d |
382 | } |
6cd62ccf |
383 | |
6cd62ccf |
384 | |
963b5f2d |
385 | /***************************************************************************** |
386 | *Get system information |
387 | ****************************************************************************/ |
3aee1200 |
388 | #if 0 |
45e14832 |
389 | gint getSystemInfo(LttSystemDescription* des, gchar * pathname) |
963b5f2d |
390 | { |
45e14832 |
391 | int fd; |
392 | GIOChannel *iochan; |
393 | gchar *buf = NULL; |
394 | gsize length; |
43da6a59 |
395 | |
396 | GMarkupParseContext * context; |
2a74fbf4 |
397 | GError * error = NULL; |
43da6a59 |
398 | GMarkupParser markup_parser = |
399 | { |
400 | parser_start_element, |
8d1e6362 |
401 | NULL, |
43da6a59 |
402 | parser_characters, |
403 | NULL, /* passthrough */ |
404 | NULL /* error */ |
405 | }; |
963b5f2d |
406 | |
45e14832 |
407 | fd = g_open(pathname, O_RDONLY, 0); |
408 | if(fd == -1){ |
2a74fbf4 |
409 | g_warning("Can not open file : %s\n", pathname); |
410 | return -1; |
6cd62ccf |
411 | } |
963b5f2d |
412 | |
45e14832 |
413 | iochan = g_io_channel_unix_new(fd); |
414 | |
43da6a59 |
415 | context = g_markup_parse_context_new(&markup_parser, 0, des,NULL); |
6cd62ccf |
416 | |
45e14832 |
417 | //while(fgets(buf,DIR_NAME_SIZE, fp) != NULL){ |
418 | while(g_io_channel_read_line(iochan, &buf, &length, NULL, &error) |
419 | != G_IO_STATUS_EOF) { |
420 | |
421 | if(error != NULL) { |
422 | g_warning("Can not read xml file: \n%s\n", error->message); |
423 | g_error_free(error); |
424 | } |
425 | if(!g_markup_parse_context_parse(context, buf, length, &error)){ |
2a74fbf4 |
426 | if(error != NULL) { |
427 | g_warning("Can not parse xml file: \n%s\n", error->message); |
428 | g_error_free(error); |
429 | } |
430 | g_markup_parse_context_free(context); |
45e14832 |
431 | |
432 | g_io_channel_shutdown(iochan, FALSE, &error); /* No flush */ |
433 | if(error != NULL) { |
434 | g_warning("Can not close file: \n%s\n", error->message); |
435 | g_error_free(error); |
436 | } |
437 | |
438 | close(fd); |
2a74fbf4 |
439 | return -1; |
43da6a59 |
440 | } |
963b5f2d |
441 | } |
2a74fbf4 |
442 | g_markup_parse_context_free(context); |
45e14832 |
443 | |
444 | g_io_channel_shutdown(iochan, FALSE, &error); /* No flush */ |
445 | if(error != NULL) { |
446 | g_warning("Can not close file: \n%s\n", error->message); |
447 | g_error_free(error); |
448 | } |
449 | |
450 | g_close(fd); |
451 | |
452 | g_free(buf); |
2a74fbf4 |
453 | return 0; |
6cd62ccf |
454 | } |
3aee1200 |
455 | #endif //0 |
6cd62ccf |
456 | |
457 | /***************************************************************************** |
963b5f2d |
458 | *The following functions get facility/tracefile information |
6cd62ccf |
459 | ****************************************************************************/ |
3aee1200 |
460 | #if 0 |
45e14832 |
461 | gint getFacilityInfo(LttTrace *t, gchar* eventdefs) |
6cd62ccf |
462 | { |
45e14832 |
463 | GDir * dir; |
464 | const gchar * name; |
8d1e6362 |
465 | unsigned int i,j; |
963b5f2d |
466 | LttFacility * f; |
467 | LttEventType * et; |
45e14832 |
468 | gchar fullname[DIR_NAME_SIZE]; |
469 | GError * error = NULL; |
470 | |
471 | dir = g_dir_open(eventdefs, 0, &error); |
963b5f2d |
472 | |
45e14832 |
473 | if(error != NULL) { |
474 | g_warning("Can not open directory: %s, %s\n", eventdefs, error->message); |
475 | g_error_free(error); |
2a74fbf4 |
476 | return -1; |
477 | } |
963b5f2d |
478 | |
45e14832 |
479 | while((name = g_dir_read_name(dir)) != NULL){ |
480 | if(!g_pattern_match_simple("*.xml", name)) continue; |
481 | strcpy(fullname,eventdefs); |
482 | strcat(fullname,name); |
483 | ltt_facility_open(t,fullname); |
484 | } |
485 | g_dir_close(dir); |
963b5f2d |
486 | |
963b5f2d |
487 | for(j=0;j<t->facility_number;j++){ |
8710c6c7 |
488 | f = (LttFacility*)g_ptr_array_index(t->facilities, j); |
963b5f2d |
489 | for(i=0; i<f->event_number; i++){ |
490 | et = f->events[i]; |
40331ba8 |
491 | setFieldsOffset(NULL, et, NULL, t); |
963b5f2d |
492 | } |
493 | } |
2a74fbf4 |
494 | return 0; |
963b5f2d |
495 | } |
3aee1200 |
496 | #endif //0 |
6cd62ccf |
497 | |
963b5f2d |
498 | /***************************************************************************** |
499 | *A trace is specified as a pathname to the directory containing all the |
500 | *associated data (control tracefiles, per cpu tracefiles, event |
501 | *descriptions...). |
502 | * |
503 | *When a trace is closed, all the associated facilities, types and fields |
504 | *are released as well. |
8d1e6362 |
505 | */ |
506 | |
507 | |
508 | /**************************************************************************** |
509 | * get_absolute_pathname |
803229fa |
510 | * |
8d1e6362 |
511 | * return the unique pathname in the system |
512 | * |
ef35d837 |
513 | * MD : Fixed this function so it uses realpath, dealing well with |
514 | * forgotten cases (.. were not used correctly before). |
803229fa |
515 | * |
963b5f2d |
516 | ****************************************************************************/ |
45e14832 |
517 | void get_absolute_pathname(const gchar *pathname, gchar * abs_pathname) |
9f797243 |
518 | { |
9f797243 |
519 | abs_pathname[0] = '\0'; |
803229fa |
520 | |
ef35d837 |
521 | if ( realpath (pathname, abs_pathname) != NULL) |
522 | return; |
523 | else |
524 | { |
8d1e6362 |
525 | /* error, return the original path unmodified */ |
ef35d837 |
526 | strcpy(abs_pathname, pathname); |
9f797243 |
527 | return; |
528 | } |
ef35d837 |
529 | return; |
9f797243 |
530 | } |
531 | |
3aee1200 |
532 | /* Search for something like : .*_.* |
533 | * |
534 | * The left side is the name, the right side is the number. |
535 | */ |
536 | |
537 | int get_tracefile_name_number(const gchar *raw_name, |
538 | GQuark *name, |
539 | guint *num) |
6cd62ccf |
540 | { |
3aee1200 |
541 | guint raw_name_len = strlen(raw_name); |
542 | gchar char_name[PATH_MAX]; |
3aee1200 |
543 | int i; |
544 | int underscore_pos; |
545 | long int cpu_num; |
546 | gchar *endptr; |
547 | |
548 | for(i=raw_name_len-1;i>=0;i--) { |
549 | if(raw_name[i] == '_') break; |
550 | } |
551 | if(i==0) /* Either not found or name length is 0 */ |
552 | return -1; |
553 | underscore_pos = i; |
963b5f2d |
554 | |
3aee1200 |
555 | cpu_num = strtol(raw_name+underscore_pos+1, &endptr, 10); |
556 | |
557 | if(endptr == raw_name+underscore_pos+1) |
558 | return -1; /* No digit */ |
559 | if(cpu_num == LONG_MIN || cpu_num == LONG_MAX) |
560 | return -1; /* underflow / overflow */ |
1a2ceb63 |
561 | |
3aee1200 |
562 | strncpy(char_name, raw_name, underscore_pos); |
1a2ceb63 |
563 | |
69bd59ed |
564 | char_name[underscore_pos] = '\0'; |
565 | |
3aee1200 |
566 | *name = g_quark_from_string(char_name); |
567 | *num = cpu_num; |
b333a76b |
568 | |
3aee1200 |
569 | return 0; |
570 | } |
963b5f2d |
571 | |
3aee1200 |
572 | |
3865ea09 |
573 | GData **ltt_trace_get_tracefiles_groups(LttTrace *trace) |
77175651 |
574 | { |
3865ea09 |
575 | return &trace->tracefiles; |
77175651 |
576 | } |
577 | |
578 | |
3865ea09 |
579 | void compute_tracefile_group(GQuark key_id, |
580 | GArray *group, |
581 | struct compute_tracefile_group_args *args) |
77175651 |
582 | { |
583 | int i; |
584 | LttTracefile *tf; |
585 | |
586 | for(i=0; i<group->len; i++) { |
587 | tf = &g_array_index (group, LttTracefile, i); |
588 | if(tf->cpu_online) |
3865ea09 |
589 | args->func(tf, args->func_args); |
77175651 |
590 | } |
591 | } |
592 | |
593 | |
3aee1200 |
594 | void ltt_tracefile_group_destroy(gpointer data) |
595 | { |
596 | GArray *group = (GArray *)data; |
597 | int i; |
598 | LttTracefile *tf; |
599 | |
600 | for(i=0; i<group->len; i++) { |
601 | tf = &g_array_index (group, LttTracefile, i); |
602 | if(tf->cpu_online) |
603 | ltt_tracefile_close(tf); |
604 | } |
605 | g_array_free(group, TRUE); |
6cd62ccf |
606 | } |
607 | |
3aee1200 |
608 | gboolean ltt_tracefile_group_has_cpu_online(gpointer data) |
49bf71b5 |
609 | { |
3aee1200 |
610 | GArray *group = (GArray *)data; |
611 | int i; |
612 | LttTracefile *tf; |
613 | |
614 | for(i=0; i<group->len; i++) { |
615 | tf = &g_array_index (group, LttTracefile, i); |
616 | if(tf->cpu_online) return 1; |
617 | } |
618 | return 0; |
49bf71b5 |
619 | } |
620 | |
621 | |
3aee1200 |
622 | /* Open each tracefile under a specific directory. Put them in a |
623 | * GData : permits to access them using their tracefile group pathname. |
624 | * i.e. access control/modules tracefile group by index : |
625 | * "control/module". |
3865ea09 |
626 | * |
627 | * relative path is the path relative to the trace root |
628 | * root path is the full path |
3aee1200 |
629 | * |
630 | * A tracefile group is simply an array where all the per cpu tracefiles sits. |
631 | */ |
632 | |
69bd59ed |
633 | static int open_tracefiles(LttTrace *trace, gchar *root_path, |
634 | gchar *relative_path) |
f7afe191 |
635 | { |
3aee1200 |
636 | DIR *dir = opendir(root_path); |
637 | struct dirent *entry; |
638 | struct stat stat_buf; |
639 | int ret; |
3865ea09 |
640 | |
69bd59ed |
641 | gchar path[PATH_MAX]; |
3aee1200 |
642 | int path_len; |
69bd59ed |
643 | gchar *path_ptr; |
3aee1200 |
644 | |
3865ea09 |
645 | int rel_path_len; |
69bd59ed |
646 | gchar rel_path[PATH_MAX]; |
647 | gchar *rel_path_ptr; |
cb03932a |
648 | LttTracefile tmp_tf; |
3865ea09 |
649 | |
3aee1200 |
650 | if(dir == NULL) { |
651 | perror(root_path); |
652 | return ENOENT; |
653 | } |
654 | |
655 | strncpy(path, root_path, PATH_MAX-1); |
656 | path_len = strlen(path); |
657 | path[path_len] = '/'; |
658 | path_len++; |
659 | path_ptr = path + path_len; |
660 | |
3865ea09 |
661 | strncpy(rel_path, relative_path, PATH_MAX-1); |
662 | rel_path_len = strlen(rel_path); |
663 | rel_path[rel_path_len] = '/'; |
664 | rel_path_len++; |
665 | rel_path_ptr = rel_path + rel_path_len; |
666 | |
3aee1200 |
667 | while((entry = readdir(dir)) != NULL) { |
668 | |
669 | if(entry->d_name[0] == '.') continue; |
670 | |
671 | strncpy(path_ptr, entry->d_name, PATH_MAX - path_len); |
3865ea09 |
672 | strncpy(rel_path_ptr, entry->d_name, PATH_MAX - rel_path_len); |
3aee1200 |
673 | |
674 | ret = stat(path, &stat_buf); |
675 | if(ret == -1) { |
676 | perror(path); |
677 | continue; |
678 | } |
679 | |
680 | g_debug("Tracefile file or directory : %s\n", path); |
681 | |
682 | if(S_ISDIR(stat_buf.st_mode)) { |
683 | |
684 | g_debug("Entering subdirectory...\n"); |
3865ea09 |
685 | ret = open_tracefiles(trace, path, rel_path); |
3aee1200 |
686 | if(ret < 0) continue; |
687 | } else if(S_ISREG(stat_buf.st_mode)) { |
3aee1200 |
688 | GQuark name; |
689 | guint num; |
690 | GArray *group; |
3aee1200 |
691 | |
3865ea09 |
692 | if(get_tracefile_name_number(rel_path, &name, &num)) |
3aee1200 |
693 | continue; /* invalid name */ |
3865ea09 |
694 | |
cb03932a |
695 | g_debug("Opening file.\n"); |
696 | if(ltt_tracefile_open(trace, path, &tmp_tf)) { |
697 | g_info("Error opening tracefile %s", path); |
698 | |
699 | continue; /* error opening the tracefile : bad magic number ? */ |
700 | } |
701 | |
3865ea09 |
702 | g_debug("Tracefile name is %s and number is %u", |
703 | g_quark_to_string(name), num); |
704 | |
cb03932a |
705 | tmp_tf.cpu_online = 1; |
706 | tmp_tf.cpu_num = num; |
d3d34f49 |
707 | tmp_tf.name = name; |
cb03932a |
708 | |
3865ea09 |
709 | group = g_datalist_id_get_data(&trace->tracefiles, name); |
3aee1200 |
710 | if(group == NULL) { |
711 | /* Elements are automatically cleared when the array is allocated. |
712 | * It makes the cpu_online variable set to 0 : cpu offline, by default. |
713 | */ |
714 | group = g_array_sized_new (FALSE, TRUE, sizeof(LttTracefile), 10); |
3865ea09 |
715 | g_datalist_id_set_data_full(&trace->tracefiles, name, |
3aee1200 |
716 | group, ltt_tracefile_group_destroy); |
717 | } |
cb03932a |
718 | |
3aee1200 |
719 | /* Add the per cpu tracefile to the named group */ |
720 | unsigned int old_len = group->len; |
721 | if(num+1 > old_len) |
722 | group = g_array_set_size(group, num+1); |
cb03932a |
723 | g_array_index (group, LttTracefile, num) = tmp_tf; |
3aee1200 |
724 | |
3aee1200 |
725 | } |
726 | } |
727 | |
728 | closedir(dir); |
729 | |
730 | return 0; |
f7afe191 |
731 | } |
732 | |
3aee1200 |
733 | /* ltt_get_facility_description |
734 | * |
735 | * Opens the trace corresponding to the requested facility (identified by fac_id |
736 | * and checksum). |
737 | * |
738 | * The name searched is : %trace root%/eventdefs/facname_checksum.xml |
739 | * |
740 | * Returns 0 on success, or 1 on failure. |
741 | */ |
742 | |
743 | static int ltt_get_facility_description(LttFacility *f, |
744 | LttTrace *t, |
745 | LttTracefile *fac_tf) |
6cd62ccf |
746 | { |
3aee1200 |
747 | char desc_file_name[PATH_MAX]; |
748 | const gchar *text; |
749 | guint textlen; |
750 | gint err; |
3aee1200 |
751 | |
752 | text = g_quark_to_string(t->pathname); |
753 | textlen = strlen(text); |
754 | |
755 | if(textlen >= PATH_MAX) goto name_error; |
756 | strcpy(desc_file_name, text); |
757 | |
758 | text = "/eventdefs/"; |
759 | textlen+=strlen(text); |
760 | if(textlen >= PATH_MAX) goto name_error; |
761 | strcat(desc_file_name, text); |
762 | |
763 | text = g_quark_to_string(f->name); |
764 | textlen+=strlen(text); |
765 | if(textlen >= PATH_MAX) goto name_error; |
766 | strcat(desc_file_name, text); |
767 | |
768 | text = "_"; |
769 | textlen+=strlen(text); |
770 | if(textlen >= PATH_MAX) goto name_error; |
771 | strcat(desc_file_name, text); |
963b5f2d |
772 | |
3aee1200 |
773 | err = snprintf(desc_file_name+textlen, PATH_MAX-textlen-1, |
774 | "%u", f->checksum); |
d2083cab |
775 | if(err < 0) goto name_error; |
3aee1200 |
776 | |
777 | textlen=strlen(desc_file_name); |
778 | |
779 | text = ".xml"; |
780 | textlen+=strlen(text); |
781 | if(textlen >= PATH_MAX) goto name_error; |
782 | strcat(desc_file_name, text); |
963b5f2d |
783 | |
3aee1200 |
784 | err = ltt_facility_open(f, t, desc_file_name); |
785 | if(err) goto facility_error; |
3aee1200 |
786 | |
787 | return 0; |
788 | |
789 | facility_error: |
790 | name_error: |
791 | return 1; |
792 | } |
793 | |
794 | static void ltt_fac_ids_destroy(gpointer data) |
795 | { |
796 | GArray *fac_ids = (GArray *)data; |
963b5f2d |
797 | |
3aee1200 |
798 | g_array_free(fac_ids, TRUE); |
799 | } |
800 | |
801 | |
802 | /* Presumes the tracefile is already seeked at the beginning. It makes sense, |
803 | * because it must be done just after the opening */ |
804 | static int ltt_process_facility_tracefile(LttTracefile *tf) |
805 | { |
806 | int err; |
807 | LttFacility *fac; |
808 | GArray *fac_ids; |
cb03932a |
809 | guint i; |
810 | LttEventType *et; |
3aee1200 |
811 | |
812 | while(1) { |
813 | err = ltt_tracefile_read_seek(tf); |
814 | if(err == EPERM) goto seek_error; |
815 | else if(err == ERANGE) break; /* End of tracefile */ |
816 | |
817 | err = ltt_tracefile_read_update_event(tf); |
818 | if(err) goto update_error; |
819 | |
820 | /* We are on a facility load/or facility unload/ or heartbeat event */ |
821 | /* The rules are : |
822 | * * facility 0 is hardcoded : this is the core facility. It will be shown |
823 | * in the facility array though, and is shown as "loaded builtin" in the |
824 | * trace. |
825 | * It contains event : |
826 | * 0 : facility load |
827 | * 1 : facility unload |
828 | * 2 : state dump facility load |
d2083cab |
829 | * 3 : heartbeat |
3aee1200 |
830 | */ |
d2083cab |
831 | if(tf->event.facility_id != LTT_FACILITY_CORE) { |
832 | /* Should only contain core facility */ |
3aee1200 |
833 | g_warning("Error in processing facility file %s, " |
834 | "should not contain facility id %u.", g_quark_to_string(tf->name), |
835 | tf->event.facility_id); |
836 | err = EPERM; |
837 | goto fac_id_error; |
d2083cab |
838 | } else { |
3aee1200 |
839 | |
840 | struct LttFacilityLoad *fac_load_data; |
b77d1b57 |
841 | struct LttStateDumpFacilityLoad *fac_state_dump_load_data; |
3aee1200 |
842 | char *fac_name; |
843 | |
844 | // FIXME align |
845 | switch((enum ltt_core_events)tf->event.event_id) { |
846 | case LTT_EVENT_FACILITY_LOAD: |
b77d1b57 |
847 | fac_name = (char*)(tf->event.data); |
d2083cab |
848 | g_debug("Doing LTT_EVENT_FACILITY_LOAD of facility %s", |
849 | fac_name); |
3aee1200 |
850 | fac_load_data = |
b77d1b57 |
851 | (struct LttFacilityLoad *) |
852 | (tf->event.data + strlen(fac_name) + 1); |
3aee1200 |
853 | fac = &g_array_index (tf->trace->facilities_by_num, LttFacility, |
854 | ltt_get_uint32(LTT_GET_BO(tf), &fac_load_data->id)); |
855 | g_assert(fac->exists == 0); |
856 | fac->name = g_quark_from_string(fac_name); |
857 | fac->checksum = ltt_get_uint32(LTT_GET_BO(tf), |
858 | &fac_load_data->checksum); |
859 | fac->id = ltt_get_uint32(LTT_GET_BO(tf), &fac_load_data->id); |
860 | fac->pointer_size = ltt_get_uint32(LTT_GET_BO(tf), |
861 | &fac_load_data->pointer_size); |
cb03932a |
862 | fac->long_size = ltt_get_uint32(LTT_GET_BO(tf), |
863 | &fac_load_data->long_size); |
eed2ef37 |
864 | fac->size_t_size = ltt_get_uint32(LTT_GET_BO(tf), |
3aee1200 |
865 | &fac_load_data->size_t_size); |
866 | fac->alignment = ltt_get_uint32(LTT_GET_BO(tf), |
867 | &fac_load_data->alignment); |
868 | |
869 | if(ltt_get_facility_description(fac, tf->trace, tf)) |
cb03932a |
870 | continue; /* error opening description */ |
3aee1200 |
871 | |
872 | fac->trace = tf->trace; |
cb03932a |
873 | |
874 | /* Preset the field offsets */ |
875 | for(i=0; i<fac->events->len; i++){ |
876 | et = &g_array_index(fac->events, LttEventType, i); |
877 | set_fields_offsets(tf, et); |
878 | } |
879 | |
3aee1200 |
880 | fac->exists = 1; |
881 | |
77175651 |
882 | fac_ids = g_datalist_id_get_data(&tf->trace->facilities_by_name, |
883 | fac->name); |
3aee1200 |
884 | if(fac_ids == NULL) { |
885 | fac_ids = g_array_sized_new (FALSE, TRUE, sizeof(guint), 1); |
886 | g_datalist_id_set_data_full(&tf->trace->facilities_by_name, |
887 | fac->name, |
888 | fac_ids, ltt_fac_ids_destroy); |
889 | } |
890 | g_array_append_val(fac_ids, fac->id); |
891 | |
892 | break; |
893 | case LTT_EVENT_FACILITY_UNLOAD: |
d2083cab |
894 | g_debug("Doing LTT_EVENT_FACILITY_UNLOAD"); |
3aee1200 |
895 | /* We don't care about unload : facilities ID are valid for the whole |
896 | * trace. They simply won't be used after the unload. */ |
897 | break; |
898 | case LTT_EVENT_STATE_DUMP_FACILITY_LOAD: |
b77d1b57 |
899 | fac_name = (char*)(tf->event.data); |
d2083cab |
900 | g_debug("Doing LTT_EVENT_STATE_DUMP_FACILITY_LOAD of facility %s", |
901 | fac_name); |
b77d1b57 |
902 | fac_state_dump_load_data = |
d2083cab |
903 | (struct LttStateDumpFacilityLoad *) |
b77d1b57 |
904 | (tf->event.data + strlen(fac_name) + 1); |
3aee1200 |
905 | fac = &g_array_index (tf->trace->facilities_by_num, LttFacility, |
b77d1b57 |
906 | ltt_get_uint32(LTT_GET_BO(tf), &fac_state_dump_load_data->id)); |
3aee1200 |
907 | g_assert(fac->exists == 0); |
908 | fac->name = g_quark_from_string(fac_name); |
909 | fac->checksum = ltt_get_uint32(LTT_GET_BO(tf), |
d2083cab |
910 | &fac_state_dump_load_data->checksum); |
911 | fac->id = fac_state_dump_load_data->id; |
3aee1200 |
912 | fac->pointer_size = ltt_get_uint32(LTT_GET_BO(tf), |
d2083cab |
913 | &fac_state_dump_load_data->pointer_size); |
cb03932a |
914 | fac->long_size = ltt_get_uint32(LTT_GET_BO(tf), |
915 | &fac_state_dump_load_data->long_size); |
eed2ef37 |
916 | fac->size_t_size = ltt_get_uint32(LTT_GET_BO(tf), |
d2083cab |
917 | &fac_state_dump_load_data->size_t_size); |
3aee1200 |
918 | fac->alignment = ltt_get_uint32(LTT_GET_BO(tf), |
d2083cab |
919 | &fac_state_dump_load_data->alignment); |
3aee1200 |
920 | if(ltt_get_facility_description(fac, tf->trace, tf)) |
cb03932a |
921 | continue; /* error opening description */ |
3aee1200 |
922 | |
923 | fac->trace = tf->trace; |
924 | |
cb03932a |
925 | /* Preset the field offsets */ |
926 | for(i=0; i<fac->events->len; i++){ |
927 | et = &g_array_index(fac->events, LttEventType, i); |
928 | set_fields_offsets(tf, et); |
929 | } |
930 | |
3aee1200 |
931 | fac->exists = 1; |
932 | |
933 | fac_ids = g_datalist_id_get_data(&tf->trace->facilities_by_name, |
934 | fac->name); |
935 | if(fac_ids == NULL) { |
936 | fac_ids = g_array_sized_new (FALSE, TRUE, sizeof(guint), 1); |
937 | g_datalist_id_set_data_full(&tf->trace->facilities_by_name, |
938 | fac->name, |
939 | fac_ids, ltt_fac_ids_destroy); |
940 | } |
941 | g_array_append_val(fac_ids, fac->id); |
942 | |
943 | break; |
944 | case LTT_EVENT_HEARTBEAT: |
945 | break; |
946 | default: |
947 | g_warning("Error in processing facility file %s, " |
948 | "unknown event id %hhu in core facility.", |
949 | g_quark_to_string(tf->name), |
950 | tf->event.event_id); |
951 | err = EPERM; |
952 | goto event_id_error; |
953 | } |
954 | } |
963b5f2d |
955 | } |
3aee1200 |
956 | return 0; |
963b5f2d |
957 | |
3aee1200 |
958 | /* Error handling */ |
3aee1200 |
959 | event_id_error: |
960 | fac_id_error: |
961 | update_error: |
962 | seek_error: |
d2083cab |
963 | g_warning("An error occured in facility tracefile parsing"); |
3aee1200 |
964 | return err; |
6cd62ccf |
965 | } |
966 | |
963b5f2d |
967 | |
3aee1200 |
968 | LttTrace *ltt_trace_open(const gchar *pathname) |
969 | { |
970 | gchar abs_path[PATH_MAX]; |
971 | LttTrace * t; |
972 | LttTracefile *tf; |
973 | GArray *group; |
b56dcdf2 |
974 | int i, ret; |
16fcbb80 |
975 | struct ltt_block_start_header *header; |
b56dcdf2 |
976 | DIR *dir; |
977 | struct dirent *entry; |
978 | guint control_found = 0; |
979 | guint eventdefs_found = 0; |
980 | struct stat stat_buf; |
981 | gchar path[PATH_MAX]; |
3aee1200 |
982 | |
983 | t = g_new(LttTrace, 1); |
984 | if(!t) goto alloc_error; |
985 | |
986 | get_absolute_pathname(pathname, abs_path); |
987 | t->pathname = g_quark_from_string(abs_path); |
988 | |
3aee1200 |
989 | g_datalist_init(&t->tracefiles); |
b56dcdf2 |
990 | |
991 | /* Test to see if it looks like a trace */ |
992 | dir = opendir(abs_path); |
993 | if(dir == NULL) { |
994 | perror(abs_path); |
995 | goto open_error; |
996 | } |
997 | while((entry = readdir(dir)) != NULL) { |
998 | strcpy(path, abs_path); |
999 | strcat(path, "/"); |
1000 | strcat(path, entry->d_name); |
1001 | ret = stat(path, &stat_buf); |
1002 | if(ret == -1) { |
1003 | perror(path); |
1004 | continue; |
1005 | } |
1006 | if(S_ISDIR(stat_buf.st_mode)) { |
1007 | if(strcmp(entry->d_name, "control") == 0) { |
1008 | control_found = 1; |
1009 | } |
1010 | if(strcmp(entry->d_name, "eventdefs") == 0) { |
1011 | eventdefs_found = 1; |
1012 | } |
1013 | } |
1014 | } |
1015 | closedir(dir); |
1016 | |
1017 | if(!control_found || !eventdefs_found) goto find_error; |
1018 | |
1019 | /* Open all the tracefiles */ |
e45551ac |
1020 | if(open_tracefiles(t, abs_path, "")) { |
1021 | g_warning("Error opening tracefile %s", abs_path); |
b56dcdf2 |
1022 | goto find_error; |
e45551ac |
1023 | } |
3aee1200 |
1024 | |
1025 | /* Prepare the facilities containers : array and mapping */ |
1026 | /* Array is zeroed : the "exists" field is set to false by default */ |
1027 | t->facilities_by_num = g_array_sized_new (FALSE, |
1028 | TRUE, sizeof(LttFacility), |
1029 | NUM_FACILITIES); |
1030 | t->facilities_by_num = g_array_set_size(t->facilities_by_num, NUM_FACILITIES); |
1031 | |
1032 | g_datalist_init(&t->facilities_by_name); |
1033 | |
1034 | /* Parse each trace control/facilitiesN files : get runtime fac. info */ |
1035 | group = g_datalist_id_get_data(&t->tracefiles, LTT_TRACEFILE_NAME_FACILITIES); |
1036 | if(group == NULL) { |
1037 | g_error("Trace %s has no facility tracefile", abs_path); |
3865ea09 |
1038 | g_assert(0); |
3aee1200 |
1039 | goto facilities_error; |
1040 | } |
1041 | |
16fcbb80 |
1042 | /* Get the trace information for the control/facility 0 tracefile */ |
1043 | g_assert(group->len > 0); |
1044 | tf = &g_array_index (group, LttTracefile, 0); |
1045 | header = (struct ltt_block_start_header*)tf->buffer.head; |
1046 | t->arch_type = ltt_get_uint32(LTT_GET_BO(tf), &header->trace.arch_type); |
1047 | t->arch_variant = ltt_get_uint32(LTT_GET_BO(tf), &header->trace.arch_variant); |
1048 | t->arch_size = header->trace.arch_size; |
1049 | t->ltt_major_version = header->trace.major_version; |
1050 | t->ltt_minor_version = header->trace.minor_version; |
1051 | t->flight_recorder = header->trace.flight_recorder; |
1052 | t->has_heartbeat = header->trace.has_heartbeat; |
1053 | t->has_alignment = header->trace.has_alignment; |
1054 | t->has_tsc = header->trace.has_tsc; |
b56dcdf2 |
1055 | |
1056 | t->num_cpu = group->len; |
16fcbb80 |
1057 | |
3aee1200 |
1058 | for(i=0; i<group->len; i++) { |
1059 | tf = &g_array_index (group, LttTracefile, i); |
1060 | if(ltt_process_facility_tracefile(tf)) |
1061 | goto facilities_error; |
1062 | } |
3aee1200 |
1063 | |
1064 | return t; |
1065 | |
1066 | /* Error handling */ |
1067 | facilities_error: |
1068 | g_datalist_clear(&t->facilities_by_name); |
1069 | g_array_free(t->facilities_by_num, TRUE); |
b56dcdf2 |
1070 | find_error: |
3aee1200 |
1071 | g_datalist_clear(&t->tracefiles); |
b56dcdf2 |
1072 | open_error: |
3aee1200 |
1073 | g_free(t); |
1074 | alloc_error: |
1075 | return NULL; |
1076 | |
1077 | } |
6cd62ccf |
1078 | |
826f1ab2 |
1079 | GQuark ltt_trace_name(const LttTrace *t) |
6cd62ccf |
1080 | { |
3aee1200 |
1081 | return t->pathname; |
6cd62ccf |
1082 | } |
1083 | |
6cd62ccf |
1084 | |
3aee1200 |
1085 | /****************************************************************************** |
1086 | * When we copy a trace, we want all the opening actions to happen again : |
1087 | * the trace will be reopened and totally independant from the original. |
1088 | * That's why we call ltt_trace_open. |
1089 | *****************************************************************************/ |
1090 | LttTrace *ltt_trace_copy(LttTrace *self) |
963b5f2d |
1091 | { |
3aee1200 |
1092 | return ltt_trace_open(g_quark_to_string(self->pathname)); |
963b5f2d |
1093 | } |
1094 | |
3aee1200 |
1095 | void ltt_trace_close(LttTrace *t) |
6cd62ccf |
1096 | { |
cb03932a |
1097 | guint i; |
1098 | LttFacility *fac; |
1099 | |
1100 | for(i=0; i<t->facilities_by_num->len; i++) { |
1101 | fac = &g_array_index (t->facilities_by_num, LttFacility, i); |
1102 | if(fac->exists) |
1103 | ltt_facility_close(fac); |
1104 | } |
1105 | |
3aee1200 |
1106 | g_datalist_clear(&t->facilities_by_name); |
1107 | g_array_free(t->facilities_by_num, TRUE); |
1108 | g_datalist_clear(&t->tracefiles); |
1109 | g_free(t); |
6cd62ccf |
1110 | } |
1111 | |
3aee1200 |
1112 | |
6cd62ccf |
1113 | /***************************************************************************** |
3aee1200 |
1114 | *Get the system description of the trace |
6cd62ccf |
1115 | ****************************************************************************/ |
1116 | |
3aee1200 |
1117 | LttFacility *ltt_trace_facility_by_id(LttTrace *t, guint8 id) |
6cd62ccf |
1118 | { |
3aee1200 |
1119 | g_assert(id < t->facilities_by_num->len); |
1120 | return &g_array_index(t->facilities_by_num, LttFacility, id); |
1121 | } |
1122 | |
1123 | /* ltt_trace_facility_get_by_name |
1124 | * |
1125 | * Returns the GArray of facility indexes. All the fac_ids that matches the |
1126 | * requested facility name. |
1127 | * |
1128 | * If name is not found, returns NULL. |
1129 | */ |
1130 | GArray *ltt_trace_facility_get_by_name(LttTrace *t, GQuark name) |
1131 | { |
1132 | return g_datalist_id_get_data(&t->facilities_by_name, name); |
6cd62ccf |
1133 | } |
1134 | |
1135 | /***************************************************************************** |
963b5f2d |
1136 | * Functions to discover all the event types in the trace |
6cd62ccf |
1137 | ****************************************************************************/ |
1138 | |
3aee1200 |
1139 | #if 0 |
963b5f2d |
1140 | unsigned ltt_trace_eventtype_number(LttTrace *t) |
6cd62ccf |
1141 | { |
8d1e6362 |
1142 | unsigned int i; |
963b5f2d |
1143 | unsigned count = 0; |
dc1cad90 |
1144 | unsigned int num = t->facility_number; |
963b5f2d |
1145 | LttFacility * f; |
dc1cad90 |
1146 | |
1147 | for(i=0;i<num;i++){ |
963b5f2d |
1148 | f = (LttFacility*)g_ptr_array_index(t->facilities, i); |
1149 | count += f->event_number; |
1150 | } |
1151 | return count; |
6cd62ccf |
1152 | } |
3aee1200 |
1153 | #endif //0 |
6cd62ccf |
1154 | |
3aee1200 |
1155 | #if 0 |
1156 | //use an iteration on all the trace facilities, and inside iteration on all the |
1157 | //event types in each facilities instead. |
963b5f2d |
1158 | LttEventType *ltt_trace_eventtype_get(LttTrace *t, unsigned evId) |
6cd62ccf |
1159 | { |
6e8c19d4 |
1160 | LttEventType *event_type; |
1161 | |
963b5f2d |
1162 | LttFacility * f; |
1163 | f = ltt_trace_facility_by_id(t,evId); |
6e8c19d4 |
1164 | |
1165 | if(unlikely(!f)) event_type = NULL; |
1166 | else event_type = f->events[evId - f->base_id]; |
1167 | |
1168 | return event_type; |
6cd62ccf |
1169 | } |
3aee1200 |
1170 | #endif //0 |
6cd62ccf |
1171 | |
3aee1200 |
1172 | #if 0 |
6cd62ccf |
1173 | /***************************************************************************** |
3aee1200 |
1174 | * ltt_trace_find_tracefile |
1175 | * |
1176 | * Find a tracefile by name and index in the group. |
1177 | * |
1178 | * Returns a pointer to the tracefiles, else NULL. |
6cd62ccf |
1179 | ****************************************************************************/ |
6cd62ccf |
1180 | |
3aee1200 |
1181 | LttTracefile *ltt_trace_find_tracefile(LttTrace *t, const gchar *name) |
6cd62ccf |
1182 | { |
6cd62ccf |
1183 | } |
3aee1200 |
1184 | #endif //0 |
6cd62ccf |
1185 | |
1186 | /***************************************************************************** |
3aee1200 |
1187 | * Get the start time and end time of the trace |
6cd62ccf |
1188 | ****************************************************************************/ |
1189 | |
3aee1200 |
1190 | static void ltt_tracefile_time_span_get(LttTracefile *tf, |
1191 | LttTime *start, LttTime *end) |
6cd62ccf |
1192 | { |
3aee1200 |
1193 | int err; |
6cd62ccf |
1194 | |
3aee1200 |
1195 | err = map_block(tf, 0); |
1196 | if(unlikely(err)) { |
1197 | g_error("Can not map block"); |
1198 | *start = ltt_time_infinite; |
1199 | } else |
1200 | *start = tf->buffer.begin.timestamp; |
1201 | |
1202 | err = map_block(tf, tf->num_blocks - 1); /* Last block */ |
1203 | if(unlikely(err)) { |
1204 | g_error("Can not map block"); |
1205 | *end = ltt_time_zero; |
1206 | } else |
1207 | *end = tf->buffer.end.timestamp; |
6cd62ccf |
1208 | } |
1209 | |
3aee1200 |
1210 | struct tracefile_time_span_get_args { |
1211 | LttTrace *t; |
1212 | LttTime *start; |
1213 | LttTime *end; |
1214 | }; |
963b5f2d |
1215 | |
3aee1200 |
1216 | static void group_time_span_get(GQuark name, gpointer data, gpointer user_data) |
963b5f2d |
1217 | { |
3aee1200 |
1218 | struct tracefile_time_span_get_args *args = |
1219 | (struct tracefile_time_span_get_args*)user_data; |
1220 | |
1221 | GArray *group = (GArray *)data; |
1222 | int i; |
1223 | LttTracefile *tf; |
1224 | LttTime tmp_start; |
1225 | LttTime tmp_end; |
1226 | |
1227 | for(i=0; i<group->len; i++) { |
1228 | tf = &g_array_index (group, LttTracefile, i); |
1229 | if(tf->cpu_online) { |
1230 | ltt_tracefile_time_span_get(tf, &tmp_start, &tmp_end); |
1231 | if(ltt_time_compare(*args->start, tmp_start)>0) *args->start = tmp_start; |
1232 | if(ltt_time_compare(*args->end, tmp_end)<0) *args->end = tmp_end; |
1233 | } |
1234 | } |
6cd62ccf |
1235 | } |
1236 | |
487ad181 |
1237 | void ltt_trace_time_span_get(LttTrace *t, LttTime *start, LttTime *end) |
1238 | { |
3aee1200 |
1239 | LttTime min_start = ltt_time_infinite; |
1240 | LttTime max_end = ltt_time_zero; |
1241 | struct tracefile_time_span_get_args args = { t, &min_start, &max_end }; |
487ad181 |
1242 | |
3aee1200 |
1243 | g_datalist_foreach(&t->tracefiles, &group_time_span_get, &args); |
1244 | |
1245 | if(start != NULL) *start = min_start; |
1246 | if(end != NULL) *end = max_end; |
1247 | |
487ad181 |
1248 | } |
1249 | |
1250 | |
6cd62ccf |
1251 | /***************************************************************************** |
963b5f2d |
1252 | *Get the name of a tracefile |
6cd62ccf |
1253 | ****************************************************************************/ |
1254 | |
3aee1200 |
1255 | GQuark ltt_tracefile_name(LttTracefile *tf) |
6cd62ccf |
1256 | { |
963b5f2d |
1257 | return tf->name; |
6cd62ccf |
1258 | } |
1259 | |
d3d34f49 |
1260 | |
1261 | guint ltt_tracefile_num(LttTracefile *tf) |
1262 | { |
1263 | return tf->cpu_num; |
1264 | } |
1265 | |
80da81ad |
1266 | /***************************************************************************** |
1267 | * Get the number of blocks in the tracefile |
1268 | ****************************************************************************/ |
1269 | |
3aee1200 |
1270 | guint ltt_tracefile_block_number(LttTracefile *tf) |
80da81ad |
1271 | { |
3aee1200 |
1272 | return tf->num_blocks; |
80da81ad |
1273 | } |
1274 | |
caf7a67a |
1275 | |
3aee1200 |
1276 | /* Seek to the first event in a tracefile that has a time equal or greater than |
1277 | * the time passed in parameter. |
1278 | * |
1279 | * If the time parameter is outside the tracefile time span, seek to the first |
27304273 |
1280 | * event or if after, return ERANGE. |
3aee1200 |
1281 | * |
1282 | * If the time parameter is before the first event, we have to seek specially to |
1283 | * there. |
1284 | * |
27304273 |
1285 | * If the time is after the end of the trace, return ERANGE. |
3aee1200 |
1286 | * |
1287 | * Do a binary search to find the right block, then a sequential search in the |
1288 | * block to find the event. |
1289 | * |
1290 | * In the special case where the time requested fits inside a block that has no |
1291 | * event corresponding to the requested time, the first event of the next block |
1292 | * will be seeked. |
1293 | * |
1294 | * IMPORTANT NOTE : // FIXME everywhere... |
1295 | * |
1296 | * You MUST NOT do a ltt_tracefile_read right after a ltt_tracefile_seek_time : |
1297 | * you will jump over an event if you do. |
1298 | * |
1299 | * Return value : 0 : no error, the tf->event can be used |
27304273 |
1300 | * ERANGE : time if after the last event of the trace |
3aee1200 |
1301 | * otherwise : this is an error. |
1302 | * |
1303 | * */ |
1304 | |
1305 | int ltt_tracefile_seek_time(LttTracefile *tf, LttTime time) |
1306 | { |
1307 | int ret = 0; |
1308 | int err; |
1309 | unsigned int block_num, high, low; |
1310 | |
1311 | /* seek at the beginning of trace */ |
1312 | err = map_block(tf, 0); /* First block */ |
1313 | if(unlikely(err)) { |
1314 | g_error("Can not map block"); |
1315 | goto fail; |
caf7a67a |
1316 | } |
1317 | |
3aee1200 |
1318 | /* If the time is lower or equal the beginning of the trace, |
1319 | * go to the first event. */ |
1320 | if(ltt_time_compare(time, tf->buffer.begin.timestamp) <= 0) { |
1321 | ret = ltt_tracefile_read(tf); |
27304273 |
1322 | if(ret == ERANGE) goto range; |
1323 | else if (ret) goto fail; |
3aee1200 |
1324 | goto found; /* There is either no event in the trace or the event points |
1325 | to the first event in the trace */ |
1326 | } |
caf7a67a |
1327 | |
3aee1200 |
1328 | err = map_block(tf, tf->num_blocks - 1); /* Last block */ |
1329 | if(unlikely(err)) { |
1330 | g_error("Can not map block"); |
1331 | goto fail; |
caf7a67a |
1332 | } |
6cd62ccf |
1333 | |
27304273 |
1334 | /* If the time is after the end of the trace, return ERANGE. */ |
1335 | if(ltt_time_compare(time, tf->buffer.end.timestamp) > 0) { |
1336 | goto range; |
3aee1200 |
1337 | } |
62e55dd6 |
1338 | |
3aee1200 |
1339 | /* Binary search the block */ |
1340 | high = tf->num_blocks - 1; |
1341 | low = 0; |
1342 | |
1343 | while(1) { |
1344 | block_num = ((high-low) / 2) + low; |
1345 | |
1346 | err = map_block(tf, block_num); |
1347 | if(unlikely(err)) { |
1348 | g_error("Can not map block"); |
1349 | goto fail; |
db55eaae |
1350 | } |
3aee1200 |
1351 | if(high == low) { |
1352 | /* We cannot divide anymore : this is what would happen if the time |
1353 | * requested was exactly between two consecutive buffers'end and start |
1354 | * timestamps. This is also what would happend if we didn't deal with out |
1355 | * of span cases prior in this function. */ |
1356 | /* The event is right in the buffer! |
1357 | * (or in the next buffer first event) */ |
1358 | while(1) { |
1359 | ret = ltt_tracefile_read(tf); |
27304273 |
1360 | if(ret == ERANGE) goto range; /* ERANGE or EPERM */ |
3aee1200 |
1361 | else if(ret) goto fail; |
1362 | |
1363 | if(ltt_time_compare(time, tf->event.event_time) >= 0) |
e45551ac |
1364 | goto found; |
3aee1200 |
1365 | } |
1366 | |
27304273 |
1367 | } else if(ltt_time_compare(time, tf->buffer.begin.timestamp) < 0) { |
3aee1200 |
1368 | /* go to lower part */ |
1369 | high = block_num; |
1370 | } else if(ltt_time_compare(time, tf->buffer.end.timestamp) > 0) { |
1371 | /* go to higher part */ |
1372 | low = block_num; |
1373 | } else {/* The event is right in the buffer! |
1374 | (or in the next buffer first event) */ |
1375 | while(1) { |
27304273 |
1376 | ret = ltt_tracefile_read(tf); |
1377 | if(ret == ERANGE) goto range; /* ERANGE or EPERM */ |
3aee1200 |
1378 | else if(ret) goto fail; |
1379 | |
1380 | if(ltt_time_compare(time, tf->event.event_time) >= 0) |
1381 | break; |
6cd62ccf |
1382 | } |
3aee1200 |
1383 | goto found; |
6cd62ccf |
1384 | } |
6cd62ccf |
1385 | } |
3aee1200 |
1386 | |
1387 | found: |
1388 | return 0; |
27304273 |
1389 | range: |
1390 | return ERANGE; |
3aee1200 |
1391 | |
1392 | /* Error handling */ |
1393 | fail: |
1394 | g_error("ltt_tracefile_seek_time failed on tracefile %s", |
1395 | g_quark_to_string(tf->name)); |
1396 | return EPERM; |
6cd62ccf |
1397 | } |
1398 | |
80da81ad |
1399 | |
3aee1200 |
1400 | int ltt_tracefile_seek_position(LttTracefile *tf, const LttEventPosition *ep) { |
80da81ad |
1401 | |
3aee1200 |
1402 | int err; |
1403 | |
1404 | if(ep->tracefile != tf) { |
1405 | goto fail; |
80da81ad |
1406 | } |
1407 | |
3aee1200 |
1408 | err = map_block(tf, ep->block); |
1409 | if(unlikely(err)) { |
1410 | g_error("Can not map block"); |
1411 | goto fail; |
1412 | } |
1413 | |
1414 | tf->event.offset = ep->offset; |
18206708 |
1415 | |
3aee1200 |
1416 | err = ltt_tracefile_read_update_event(tf); |
1417 | if(err) goto fail; |
1418 | err = ltt_tracefile_read_op(tf); |
1419 | if(err) goto fail; |
80da81ad |
1420 | |
a0c1f622 |
1421 | return 0; |
3aee1200 |
1422 | |
1423 | fail: |
1424 | g_error("ltt_tracefile_seek_time failed on tracefile %s", |
1425 | g_quark_to_string(tf->name)); |
a0c1f622 |
1426 | return 1; |
3aee1200 |
1427 | } |
1428 | |
1429 | /* Calculate the real event time based on the buffer boundaries */ |
1430 | LttTime ltt_interpolate_time(LttTracefile *tf, LttEvent *event) |
1431 | { |
1432 | LttTime time; |
1433 | |
1434 | g_assert(tf->trace->has_tsc); |
1435 | |
1436 | time = ltt_time_from_uint64( |
50a17d39 |
1437 | (guint64)(tf->buffer.tsc - tf->buffer.begin.cycle_count) * |
1438 | tf->buffer.nsecs_per_cycle); |
3aee1200 |
1439 | time = ltt_time_add(tf->buffer.begin.timestamp, time); |
1440 | |
1441 | return time; |
80da81ad |
1442 | } |
1443 | |
eed2ef37 |
1444 | |
1445 | /* Get the current event of the tracefile : valid until the next read */ |
1446 | LttEvent *ltt_tracefile_get_event(LttTracefile *tf) |
1447 | { |
1448 | return &tf->event; |
1449 | } |
1450 | |
1451 | |
1452 | |
6cd62ccf |
1453 | /***************************************************************************** |
1454 | *Function name |
3aee1200 |
1455 | * ltt_tracefile_read : Read the next event in the tracefile |
6cd62ccf |
1456 | *Input params |
1457 | * t : tracefile |
1458 | *Return value |
3aee1200 |
1459 | * |
1460 | * Returns 0 if an event can be used in tf->event. |
d822520b |
1461 | * Returns ERANGE on end of trace. The event in tf->event still can be used |
1462 | * (if the last block was not empty). |
3aee1200 |
1463 | * Returns EPERM on error. |
1464 | * |
1465 | * This function does make the tracefile event structure point to the event |
1466 | * currently pointed to by the tf->event. |
1467 | * |
1468 | * Note : you must call a ltt_tracefile_seek to the beginning of the trace to |
1469 | * reinitialize it after an error if you want results to be coherent. |
1470 | * It would be the case if a end of trace last buffer has no event : the end |
1471 | * of trace wouldn't be returned, but an error. |
1472 | * We make the assumption there is at least one event per buffer. |
6cd62ccf |
1473 | ****************************************************************************/ |
1474 | |
3aee1200 |
1475 | int ltt_tracefile_read(LttTracefile *tf) |
6cd62ccf |
1476 | { |
963b5f2d |
1477 | int err; |
6cd62ccf |
1478 | |
3aee1200 |
1479 | err = ltt_tracefile_read_seek(tf); |
1480 | if(err) return err; |
1481 | err = ltt_tracefile_read_update_event(tf); |
1482 | if(err) return err; |
1483 | err = ltt_tracefile_read_op(tf); |
1484 | if(err) return err; |
1485 | |
1486 | return 0; |
1487 | } |
1488 | |
1489 | int ltt_tracefile_read_seek(LttTracefile *tf) |
1490 | { |
1491 | int err; |
1492 | |
1493 | /* Get next buffer until we finally have an event, or end of trace */ |
1494 | while(1) { |
1495 | err = ltt_seek_next_event(tf); |
1496 | if(unlikely(err == ENOPROTOOPT)) { |
1497 | return EPERM; |
bdc36259 |
1498 | } |
bdc36259 |
1499 | |
3aee1200 |
1500 | /* Are we at the end of the buffer ? */ |
1501 | if(err == ERANGE) { |
1502 | if(unlikely(tf->buffer.index == tf->num_blocks-1)){ /* end of trace ? */ |
1503 | return ERANGE; |
1504 | } else { |
1505 | /* get next block */ |
1506 | err = map_block(tf, tf->buffer.index + 1); |
1507 | if(unlikely(err)) { |
1508 | g_error("Can not map block"); |
1509 | return EPERM; |
1510 | } |
1511 | } |
1512 | } else break; /* We found an event ! */ |
1513 | } |
2dee981d |
1514 | |
3aee1200 |
1515 | return 0; |
1516 | } |
18206708 |
1517 | |
1518 | |
3aee1200 |
1519 | /* do specific operation on events */ |
1520 | int ltt_tracefile_read_op(LttTracefile *tf) |
1521 | { |
3aee1200 |
1522 | LttEvent *event; |
1523 | |
1524 | event = &tf->event; |
18206708 |
1525 | |
3aee1200 |
1526 | /* do event specific operation */ |
40331ba8 |
1527 | |
3aee1200 |
1528 | /* do something if its an heartbeat event : increment the heartbeat count */ |
1529 | //if(event->facility_id == LTT_FACILITY_CORE) |
1530 | // if(event->event_id == LTT_EVENT_HEARTBEAT) |
1531 | // tf->cur_heart_beat_number++; |
1532 | |
1533 | return 0; |
6cd62ccf |
1534 | } |
1535 | |
6cd62ccf |
1536 | |
3aee1200 |
1537 | /* same as ltt_tracefile_read, but does not seek to the next event nor call |
1538 | * event specific operation. */ |
1539 | int ltt_tracefile_read_update_event(LttTracefile *tf) |
6cd62ccf |
1540 | { |
3aee1200 |
1541 | void * pos; |
1542 | LttEvent *event; |
1543 | |
1544 | event = &tf->event; |
eed2ef37 |
1545 | pos = tf->buffer.head + event->offset; |
3aee1200 |
1546 | |
1547 | /* Read event header */ |
1548 | |
1549 | //TODO align |
1550 | |
1551 | if(tf->trace->has_tsc) { |
16fcbb80 |
1552 | if(tf->trace->has_heartbeat) { |
1553 | event->time.timestamp = ltt_get_uint32(LTT_GET_BO(tf), |
1554 | pos); |
1555 | /* 32 bits -> 64 bits tsc */ |
1556 | /* note : still works for seek and non seek cases. */ |
1557 | if(event->time.timestamp < (0xFFFFFFFFULL&tf->buffer.tsc)) { |
1558 | tf->buffer.tsc = ((tf->buffer.tsc&0xFFFFFFFF00000000ULL) |
1559 | + 0x100000000ULL) |
1560 | | (guint64)event->time.timestamp; |
1561 | event->tsc = tf->buffer.tsc; |
1562 | } else { |
1563 | /* no overflow */ |
1564 | tf->buffer.tsc = (tf->buffer.tsc&0xFFFFFFFF00000000ULL) |
1565 | | (guint64)event->time.timestamp; |
1566 | event->tsc = tf->buffer.tsc; |
1567 | } |
1568 | pos += sizeof(guint32); |
3aee1200 |
1569 | } else { |
16fcbb80 |
1570 | event->tsc = ltt_get_uint64(LTT_GET_BO(tf), pos); |
1571 | tf->buffer.tsc = event->tsc; |
1572 | pos += sizeof(guint64); |
3aee1200 |
1573 | } |
16fcbb80 |
1574 | |
3aee1200 |
1575 | event->event_time = ltt_interpolate_time(tf, event); |
3aee1200 |
1576 | } else { |
1577 | event->time.delta.tv_sec = 0; |
1578 | event->time.delta.tv_nsec = ltt_get_uint32(LTT_GET_BO(tf), |
1579 | pos) * NSEC_PER_USEC; |
1580 | tf->buffer.tsc = 0; |
1581 | event->tsc = tf->buffer.tsc; |
1582 | |
1583 | event->event_time = ltt_time_add(tf->buffer.begin.timestamp, |
1584 | event->time.delta); |
1585 | pos += sizeof(guint32); |
1586 | } |
1587 | |
eed2ef37 |
1588 | event->facility_id = *(guint8*)pos; |
3aee1200 |
1589 | pos += sizeof(guint8); |
1590 | |
eed2ef37 |
1591 | event->event_id = *(guint8*)pos; |
3aee1200 |
1592 | pos += sizeof(guint8); |
1593 | |
b77d1b57 |
1594 | event->event_size = ltt_get_uint16(LTT_GET_BO(tf), pos); |
1595 | pos += sizeof(guint16); |
1596 | |
3aee1200 |
1597 | event->data = pos; |
1598 | |
77175651 |
1599 | /* get the data size and update the event fields with the current |
1600 | * information */ |
eed2ef37 |
1601 | ltt_update_event_size(tf); |
77175651 |
1602 | |
3aee1200 |
1603 | return 0; |
6cd62ccf |
1604 | } |
1605 | |
507915ee |
1606 | |
6cd62ccf |
1607 | /**************************************************************************** |
1608 | *Function name |
3aee1200 |
1609 | * map_block : map a block from the file |
6cd62ccf |
1610 | *Input Params |
1611 | * lttdes : ltt trace file |
1612 | * whichBlock : the block which will be read |
1613 | *return value |
1614 | * 0 : success |
1615 | * EINVAL : lseek fail |
1616 | * EIO : can not read from the file |
1617 | ****************************************************************************/ |
1618 | |
3aee1200 |
1619 | static gint map_block(LttTracefile * tf, guint block_num) |
6cd62ccf |
1620 | { |
b77d1b57 |
1621 | int page_size = getpagesize(); |
3aee1200 |
1622 | struct ltt_block_start_header *header; |
1623 | |
1624 | g_assert(block_num < tf->num_blocks); |
6cd62ccf |
1625 | |
f628823c |
1626 | if(tf->buffer.head != NULL) { |
1627 | if(munmap(tf->buffer.head, PAGE_ALIGN(tf->buf_size))) { |
1628 | g_warning("unmap size : %u\n", |
1629 | PAGE_ALIGN(tf->buf_size)); |
1630 | perror("munmap error"); |
1631 | g_assert(0); |
1632 | } |
1633 | } |
1634 | |
ac849774 |
1635 | |
3aee1200 |
1636 | /* Multiple of pages aligned head */ |
b77d1b57 |
1637 | tf->buffer.head = mmap(0, |
f628823c |
1638 | PAGE_ALIGN(tf->buf_size), |
b77d1b57 |
1639 | PROT_READ, MAP_PRIVATE, tf->fd, |
f628823c |
1640 | PAGE_ALIGN((off_t)tf->buf_size * (off_t)block_num)); |
3aee1200 |
1641 | |
3865ea09 |
1642 | if(tf->buffer.head == MAP_FAILED) { |
3aee1200 |
1643 | perror("Error in allocating memory for buffer of tracefile"); |
3865ea09 |
1644 | g_assert(0); |
3aee1200 |
1645 | goto map_error; |
6cd62ccf |
1646 | } |
3865ea09 |
1647 | g_assert( ( (guint)tf->buffer.head&(8-1) ) == 0); // make sure it's aligned. |
3aee1200 |
1648 | |
6cd62ccf |
1649 | |
3aee1200 |
1650 | tf->buffer.index = block_num; |
1651 | |
1652 | header = (struct ltt_block_start_header*)tf->buffer.head; |
1653 | |
1654 | tf->buffer.begin.timestamp = ltt_get_time(LTT_GET_BO(tf), |
1655 | &header->begin.timestamp); |
1656 | tf->buffer.begin.timestamp.tv_nsec *= NSEC_PER_USEC; |
e45551ac |
1657 | g_debug("block %u begin : %lu.%lu", block_num, |
50a17d39 |
1658 | tf->buffer.begin.timestamp.tv_sec, tf->buffer.begin.timestamp.tv_nsec); |
3aee1200 |
1659 | tf->buffer.begin.cycle_count = ltt_get_uint64(LTT_GET_BO(tf), |
1660 | &header->begin.cycle_count); |
1661 | tf->buffer.end.timestamp = ltt_get_time(LTT_GET_BO(tf), |
1662 | &header->end.timestamp); |
1663 | tf->buffer.end.timestamp.tv_nsec *= NSEC_PER_USEC; |
e45551ac |
1664 | g_debug("block %u end : %lu.%lu", block_num, |
50a17d39 |
1665 | tf->buffer.end.timestamp.tv_sec, tf->buffer.end.timestamp.tv_nsec); |
3aee1200 |
1666 | tf->buffer.end.cycle_count = ltt_get_uint64(LTT_GET_BO(tf), |
1667 | &header->end.cycle_count); |
1668 | tf->buffer.lost_size = ltt_get_uint32(LTT_GET_BO(tf), |
1669 | &header->lost_size); |
6cd62ccf |
1670 | |
3aee1200 |
1671 | tf->buffer.tsc = tf->buffer.begin.cycle_count; |
1672 | tf->event.tsc = tf->buffer.tsc; |
1673 | |
1674 | /* FIXME |
1675 | * eventually support variable buffer size : will need a partial pre-read of |
1676 | * the headers to create an index when we open the trace... eventually. */ |
f628823c |
1677 | g_assert(tf->buf_size == ltt_get_uint32(LTT_GET_BO(tf), |
3aee1200 |
1678 | &header->buf_size)); |
507915ee |
1679 | |
3aee1200 |
1680 | /* Now that the buffer is mapped, calculate the time interpolation for the |
1681 | * block. */ |
1682 | |
1683 | tf->buffer.nsecs_per_cycle = calc_nsecs_per_cycle(tf); |
1684 | |
1685 | /* Make the current event point to the beginning of the buffer : |
1686 | * it means that the event read must get the first event. */ |
1687 | tf->event.tracefile = tf; |
1688 | tf->event.block = block_num; |
eed2ef37 |
1689 | tf->event.offset = 0; |
3aee1200 |
1690 | |
1691 | return 0; |
6cd62ccf |
1692 | |
3aee1200 |
1693 | map_error: |
1694 | return -errno; |
40331ba8 |
1695 | |
6cd62ccf |
1696 | } |
1697 | |
77175651 |
1698 | /* It will update the fields offsets too */ |
1699 | void ltt_update_event_size(LttTracefile *tf) |
6cd62ccf |
1700 | { |
3aee1200 |
1701 | ssize_t size = 0; |
1702 | |
1703 | /* Specific handling of core events : necessary to read the facility control |
1704 | * tracefile. */ |
77175651 |
1705 | LttFacility *f = ltt_trace_get_facility_by_num(tf->trace, |
1706 | tf->event.facility_id); |
6cd62ccf |
1707 | |
3865ea09 |
1708 | if(likely(tf->event.facility_id == LTT_FACILITY_CORE)) { |
1709 | switch((enum ltt_core_events)tf->event.event_id) { |
1710 | case LTT_EVENT_FACILITY_LOAD: |
b77d1b57 |
1711 | size = strlen((char*)tf->event.data) + 1; |
d2083cab |
1712 | g_debug("Update Event facility load of facility %s", (char*)tf->event.data); |
c4afd5d8 |
1713 | size += sizeof(struct LttFacilityLoad); |
3865ea09 |
1714 | break; |
1715 | case LTT_EVENT_FACILITY_UNLOAD: |
d2083cab |
1716 | g_debug("Update Event facility unload"); |
3865ea09 |
1717 | size = sizeof(struct LttFacilityUnload); |
1718 | break; |
1719 | case LTT_EVENT_STATE_DUMP_FACILITY_LOAD: |
b77d1b57 |
1720 | size = strlen((char*)tf->event.data) + 1; |
d2083cab |
1721 | g_debug("Update Event facility load state dump of facility %s", |
b77d1b57 |
1722 | (char*)tf->event.data); |
c4afd5d8 |
1723 | size += sizeof(struct LttStateDumpFacilityLoad); |
3865ea09 |
1724 | break; |
1725 | case LTT_EVENT_HEARTBEAT: |
d2083cab |
1726 | g_debug("Update Event heartbeat"); |
3865ea09 |
1727 | size = sizeof(TimeHeartbeat); |
1728 | break; |
1729 | default: |
1730 | g_warning("Error in getting event size : tracefile %s, " |
1731 | "unknown event id %hhu in core facility.", |
1732 | g_quark_to_string(tf->name), |
1733 | tf->event.event_id); |
1734 | goto event_id_error; |
2dee981d |
1735 | |
77175651 |
1736 | } |
3aee1200 |
1737 | } else { |
c4afd5d8 |
1738 | if(!f->exists) { |
1739 | g_error("Unknown facility %hhu (0x%hhx) in tracefile %s", |
1740 | tf->event.facility_id, |
1741 | tf->event.facility_id, |
1742 | g_quark_to_string(tf->name)); |
1743 | goto facility_error; |
1744 | } |
1745 | |
3aee1200 |
1746 | LttEventType *event_type = |
1747 | ltt_facility_eventtype_get(f, tf->event.event_id); |
c4afd5d8 |
1748 | |
1749 | if(!event_type) { |
1750 | g_error("Unknown event id %hhu in facility %s in tracefile %s", |
1751 | tf->event.event_id, |
1752 | g_quark_to_string(f->name), |
1753 | g_quark_to_string(tf->name)); |
1754 | goto event_type_error; |
1755 | } |
9eb6aa7a |
1756 | |
27304273 |
1757 | if(event_type->root_field) |
1758 | size = get_field_type_size(tf, event_type, |
1759 | 0, 0, event_type->root_field, tf->event.data); |
1760 | else |
1761 | size = 0; |
c4afd5d8 |
1762 | |
f628823c |
1763 | g_debug("Event root field : f.e %hhu.%hhu size %zd", |
1764 | tf->event.facility_id, |
c4afd5d8 |
1765 | tf->event.event_id, size); |
3aee1200 |
1766 | } |
3aee1200 |
1767 | |
77175651 |
1768 | tf->event.data_size = size; |
eed2ef37 |
1769 | |
b77d1b57 |
1770 | /* Check consistency between kernel and LTTV structure sizes */ |
1771 | g_assert(tf->event.data_size == tf->event.event_size); |
9eb6aa7a |
1772 | |
eed2ef37 |
1773 | return; |
1774 | |
c4afd5d8 |
1775 | facility_error: |
1776 | event_type_error: |
3aee1200 |
1777 | event_id_error: |
eed2ef37 |
1778 | tf->event.data_size = 0; |
6cd62ccf |
1779 | } |
1780 | |
6cd62ccf |
1781 | |
3aee1200 |
1782 | /* Take the tf current event offset and use the event facility id and event id |
1783 | * to figure out where is the next event offset. |
1784 | * |
1785 | * This is an internal function not aiming at being used elsewhere : it will |
1786 | * not jump over the current block limits. Please consider using |
1787 | * ltt_tracefile_read to do this. |
1788 | * |
1789 | * Returns 0 on success |
1790 | * ERANGE if we are at the end of the buffer. |
1791 | * ENOPROTOOPT if an error occured when getting the current event size. |
1792 | */ |
1793 | static int ltt_seek_next_event(LttTracefile *tf) |
6cd62ccf |
1794 | { |
3aee1200 |
1795 | int ret = 0; |
1796 | void *pos; |
3aee1200 |
1797 | |
1798 | /* seek over the buffer header if we are at the buffer start */ |
eed2ef37 |
1799 | if(tf->event.offset == 0) { |
3aee1200 |
1800 | tf->event.offset += sizeof(struct ltt_block_start_header); |
b77d1b57 |
1801 | |
f628823c |
1802 | if(tf->event.offset == tf->buf_size - tf->buffer.lost_size) { |
b77d1b57 |
1803 | ret = ERANGE; |
1804 | } |
3aee1200 |
1805 | goto found; |
1806 | } |
6cd62ccf |
1807 | |
6cd62ccf |
1808 | |
3aee1200 |
1809 | pos = tf->event.data; |
1810 | |
77175651 |
1811 | if(tf->event.data_size < 0) goto error; |
3aee1200 |
1812 | |
77175651 |
1813 | pos += (size_t)tf->event.data_size; |
3aee1200 |
1814 | |
eed2ef37 |
1815 | tf->event.offset = pos - tf->buffer.head; |
cb03932a |
1816 | |
f628823c |
1817 | if(tf->event.offset == tf->buf_size - tf->buffer.lost_size) { |
cb03932a |
1818 | ret = ERANGE; |
1819 | goto found; |
1820 | } |
3aee1200 |
1821 | |
1822 | found: |
1823 | return ret; |
1824 | |
1825 | error: |
1826 | g_error("Error in ltt_seek_next_event for tracefile %s", |
1827 | g_quark_to_string(tf->name)); |
1828 | return ENOPROTOOPT; |
6cd62ccf |
1829 | } |
1830 | |
18206708 |
1831 | |
6cd62ccf |
1832 | /***************************************************************************** |
1833 | *Function name |
3aee1200 |
1834 | * calc_nsecs_per_cycle : calculate nsecs per cycle for current block |
6cd62ccf |
1835 | *Input Params |
1836 | * t : tracefile |
1837 | ****************************************************************************/ |
1838 | |
3aee1200 |
1839 | static double calc_nsecs_per_cycle(LttTracefile * tf) |
6cd62ccf |
1840 | { |
963b5f2d |
1841 | LttTime lBufTotalTime; /* Total time for this buffer */ |
887208b7 |
1842 | double lBufTotalNSec; /* Total time for this buffer in nsecs */ |
8ee1c3d5 |
1843 | LttCycleCount lBufTotalCycle;/* Total cycles for this buffer */ |
6cd62ccf |
1844 | |
1845 | /* Calculate the total time for this buffer */ |
d822520b |
1846 | lBufTotalTime = ltt_time_sub(tf->buffer.end.timestamp, |
1847 | tf->buffer.begin.timestamp); |
6cd62ccf |
1848 | |
1849 | /* Calculate the total cycles for this bufffer */ |
d822520b |
1850 | lBufTotalCycle = tf->buffer.end.cycle_count; |
1851 | lBufTotalCycle -= tf->buffer.begin.cycle_count; |
6cd62ccf |
1852 | |
8ee1c3d5 |
1853 | /* Convert the total time to double */ |
887208b7 |
1854 | lBufTotalNSec = ltt_time_to_double(lBufTotalTime); |
6cd62ccf |
1855 | |
3aee1200 |
1856 | return lBufTotalNSec / (double)lBufTotalCycle; |
8ee1c3d5 |
1857 | |
3aee1200 |
1858 | } |
1859 | #if 0 |
1860 | void setFieldsOffset(LttTracefile *tf, LttEventType *evT,void *evD) |
1861 | { |
1862 | LttField * rootFld = evT->root_field; |
1863 | // rootFld->base_address = evD; |
2dee981d |
1864 | |
3aee1200 |
1865 | if(likely(rootFld)) |
1866 | rootFld->field_size = getFieldtypeSize(tf, evT->facility, |
1867 | evT, 0,0,rootFld, evD); |
6cd62ccf |
1868 | } |
3aee1200 |
1869 | #endif //0 |
6cd62ccf |
1870 | |
3aee1200 |
1871 | /***************************************************************************** |
6cd62ccf |
1872 | *Function name |
3aee1200 |
1873 | * set_fields_offsets : set the precomputable offset of the fields |
6cd62ccf |
1874 | *Input params |
3aee1200 |
1875 | * tracefile : opened trace file |
1876 | * event_type : the event type |
6cd62ccf |
1877 | ****************************************************************************/ |
1878 | |
3aee1200 |
1879 | void set_fields_offsets(LttTracefile *tf, LttEventType *event_type) |
6cd62ccf |
1880 | { |
3aee1200 |
1881 | LttField *field = event_type->root_field; |
1882 | enum field_status fixed_root = FIELD_FIXED, fixed_parent = FIELD_FIXED; |
1883 | |
1884 | if(likely(field)) |
1885 | preset_field_type_size(tf, event_type, 0, 0, |
1886 | &fixed_root, &fixed_parent, |
1887 | field); |
1888 | |
1889 | } |
e4eced0f |
1890 | |
bbf28e50 |
1891 | |
3aee1200 |
1892 | /***************************************************************************** |
1893 | *Function name |
1894 | * preset_field_type_size : set the fixed sizes of the field type |
1895 | *Input params |
1896 | * tf : tracefile |
1897 | * event_type : event type |
1898 | * offset_root : offset from the root |
1899 | * offset_parent : offset from the parent |
1900 | * fixed_root : Do we know a fixed offset to the root ? |
1901 | * fixed_parent : Do we know a fixed offset to the parent ? |
1902 | * field : field |
1903 | ****************************************************************************/ |
1904 | void preset_field_type_size(LttTracefile *tf, LttEventType *event_type, |
1905 | off_t offset_root, off_t offset_parent, |
1906 | enum field_status *fixed_root, enum field_status *fixed_parent, |
1907 | LttField *field) |
1908 | { |
1909 | enum field_status local_fixed_root, local_fixed_parent; |
1910 | guint i; |
1911 | LttType *type; |
dfb73233 |
1912 | |
3aee1200 |
1913 | g_assert(field->fixed_root == FIELD_UNKNOWN); |
1914 | g_assert(field->fixed_parent == FIELD_UNKNOWN); |
1915 | g_assert(field->fixed_size == FIELD_UNKNOWN); |
dfb73233 |
1916 | |
3aee1200 |
1917 | type = field->field_type; |
1918 | |
1919 | field->fixed_root = *fixed_root; |
1920 | if(field->fixed_root == FIELD_FIXED) |
1921 | field->offset_root = offset_root; |
1922 | else |
1923 | field->offset_root = 0; |
1924 | |
1925 | field->fixed_parent = *fixed_parent; |
1926 | if(field->fixed_parent == FIELD_FIXED) |
1927 | field->offset_parent = offset_parent; |
1928 | else |
1929 | field->offset_parent = 0; |
1930 | |
1931 | size_t current_root_offset; |
1932 | size_t current_offset; |
1933 | enum field_status current_child_status, final_child_status; |
1934 | size_t max_size; |
1935 | |
1936 | switch(type->type_class) { |
1937 | case LTT_INT: |
1938 | case LTT_UINT: |
1939 | case LTT_FLOAT: |
1940 | case LTT_ENUM: |
1941 | field->field_size = ltt_type_size(tf->trace, type); |
1942 | field->fixed_size = FIELD_FIXED; |
1943 | break; |
1944 | case LTT_POINTER: |
1945 | field->field_size = (off_t)event_type->facility->pointer_size; |
1946 | field->fixed_size = FIELD_FIXED; |
1947 | break; |
1948 | case LTT_LONG: |
1949 | case LTT_ULONG: |
cb03932a |
1950 | field->field_size = (off_t)event_type->facility->long_size; |
3aee1200 |
1951 | field->fixed_size = FIELD_FIXED; |
1952 | break; |
1953 | case LTT_SIZE_T: |
1954 | case LTT_SSIZE_T: |
1955 | case LTT_OFF_T: |
1956 | field->field_size = (off_t)event_type->facility->size_t_size; |
1957 | field->fixed_size = FIELD_FIXED; |
1958 | break; |
1959 | case LTT_SEQUENCE: |
1960 | local_fixed_root = FIELD_VARIABLE; |
1961 | local_fixed_parent = FIELD_VARIABLE; |
1962 | preset_field_type_size(tf, event_type, |
1963 | 0, 0, |
1964 | &local_fixed_root, &local_fixed_parent, |
1965 | field->child[0]); |
1966 | field->fixed_size = FIELD_VARIABLE; |
1967 | field->field_size = 0; |
27304273 |
1968 | *fixed_root = FIELD_VARIABLE; |
1969 | *fixed_parent = FIELD_VARIABLE; |
3aee1200 |
1970 | break; |
1971 | case LTT_STRING: |
1972 | field->fixed_size = FIELD_VARIABLE; |
1973 | field->field_size = 0; |
27304273 |
1974 | *fixed_root = FIELD_VARIABLE; |
1975 | *fixed_parent = FIELD_VARIABLE; |
3aee1200 |
1976 | break; |
1977 | case LTT_ARRAY: |
1978 | local_fixed_root = FIELD_VARIABLE; |
1979 | local_fixed_parent = FIELD_VARIABLE; |
1980 | preset_field_type_size(tf, event_type, |
1981 | 0, 0, |
1982 | &local_fixed_root, &local_fixed_parent, |
1983 | field->child[0]); |
1984 | field->fixed_size = field->child[0]->fixed_size; |
27304273 |
1985 | if(field->fixed_size == FIELD_FIXED) { |
3aee1200 |
1986 | field->field_size = type->element_number * field->child[0]->field_size; |
27304273 |
1987 | } else { |
3aee1200 |
1988 | field->field_size = 0; |
27304273 |
1989 | *fixed_root = FIELD_VARIABLE; |
1990 | *fixed_parent = FIELD_VARIABLE; |
1991 | } |
3aee1200 |
1992 | break; |
1993 | case LTT_STRUCT: |
1994 | current_root_offset = field->offset_root; |
1995 | current_offset = 0; |
1996 | current_child_status = FIELD_FIXED; |
1997 | for(i=0;i<type->element_number;i++) { |
1998 | preset_field_type_size(tf, event_type, |
1999 | current_root_offset, current_offset, |
2000 | fixed_root, ¤t_child_status, |
2001 | field->child[i]); |
2002 | if(current_child_status == FIELD_FIXED) { |
2003 | current_root_offset += field->child[i]->field_size; |
2004 | current_offset += field->child[i]->field_size; |
2005 | } else { |
2006 | current_root_offset = 0; |
2007 | current_offset = 0; |
2008 | } |
2009 | } |
2010 | if(current_child_status != FIELD_FIXED) { |
2011 | *fixed_parent = current_child_status; |
2012 | field->field_size = 0; |
2013 | field->fixed_size = current_child_status; |
2014 | } else { |
2015 | field->field_size = current_offset; |
2016 | field->fixed_size = FIELD_FIXED; |
2017 | } |
2018 | break; |
2019 | case LTT_UNION: |
2020 | current_root_offset = field->offset_root; |
2021 | current_offset = 0; |
2022 | max_size = 0; |
2023 | final_child_status = FIELD_FIXED; |
2024 | for(i=0;i<type->element_number;i++) { |
2025 | enum field_status current_root_child_status = FIELD_FIXED; |
2026 | enum field_status current_child_status = FIELD_FIXED; |
2027 | preset_field_type_size(tf, event_type, |
2028 | current_root_offset, current_offset, |
2029 | ¤t_root_child_status, ¤t_child_status, |
2030 | field->child[i]); |
2031 | if(current_child_status != FIELD_FIXED) |
2032 | final_child_status = current_child_status; |
2033 | else |
2034 | max_size = max(max_size, field->child[i]->field_size); |
2035 | } |
2036 | if(final_child_status != FIELD_FIXED) { |
2037 | *fixed_root = final_child_status; |
2038 | *fixed_parent = final_child_status; |
2039 | field->field_size = 0; |
2040 | field->fixed_size = current_child_status; |
2041 | } else { |
2042 | field->field_size = max_size; |
2043 | field->fixed_size = FIELD_FIXED; |
2044 | } |
2045 | break; |
dfb73233 |
2046 | } |
2047 | |
6cd62ccf |
2048 | } |
2049 | |
3aee1200 |
2050 | |
77175651 |
2051 | /***************************************************************************** |
2052 | *Function name |
2053 | * check_fields_compatibility : Check for compatibility between two fields : |
2054 | * do they use the same inner structure ? |
2055 | *Input params |
2056 | * event_type1 : event type |
2057 | * event_type2 : event type |
2058 | * field1 : field |
2059 | * field2 : field |
2060 | *Returns : 0 if identical |
2061 | * 1 if not. |
2062 | ****************************************************************************/ |
2063 | gint check_fields_compatibility(LttEventType *event_type1, |
2064 | LttEventType *event_type2, |
2065 | LttField *field1, LttField *field2) |
2066 | { |
2067 | guint different = 0; |
77175651 |
2068 | guint i; |
2069 | LttType *type1; |
2070 | LttType *type2; |
2071 | |
2072 | if(field1 == NULL) { |
2073 | if(field2 == NULL) goto end; |
2074 | else { |
2075 | different = 1; |
2076 | goto end; |
2077 | } |
2078 | } else if(field2 == NULL) { |
2079 | different = 1; |
2080 | goto end; |
2081 | } |
2082 | |
2083 | g_assert(field1->fixed_root != FIELD_UNKNOWN); |
2084 | g_assert(field2->fixed_root != FIELD_UNKNOWN); |
2085 | g_assert(field1->fixed_parent != FIELD_UNKNOWN); |
2086 | g_assert(field2->fixed_parent != FIELD_UNKNOWN); |
2087 | g_assert(field1->fixed_size != FIELD_UNKNOWN); |
2088 | g_assert(field2->fixed_size != FIELD_UNKNOWN); |
2089 | |
2090 | type1 = field1->field_type; |
2091 | type2 = field2->field_type; |
2092 | |
77175651 |
2093 | if(type1->type_class != type2->type_class) { |
2094 | different = 1; |
2095 | goto end; |
2096 | } |
2097 | if(type1->element_name != type2->element_name) { |
2098 | different = 1; |
2099 | goto end; |
2100 | } |
2101 | |
2102 | switch(type1->type_class) { |
2103 | case LTT_INT: |
2104 | case LTT_UINT: |
2105 | case LTT_FLOAT: |
2106 | case LTT_POINTER: |
2107 | case LTT_LONG: |
2108 | case LTT_ULONG: |
2109 | case LTT_SIZE_T: |
2110 | case LTT_SSIZE_T: |
2111 | case LTT_OFF_T: |
2112 | if(field1->field_size != field2->field_size) { |
2113 | different = 1; |
2114 | goto end; |
2115 | } |
2116 | break; |
2117 | case LTT_ENUM: |
2118 | if(type1->element_number != type2->element_number) { |
2119 | different = 1; |
2120 | goto end; |
2121 | } |
2122 | for(i=0;i<type1->element_number;i++) { |
2123 | if(type1->enum_strings[i] != type2->enum_strings[i]) { |
2124 | different = 1; |
2125 | goto end; |
2126 | } |
2127 | } |
2128 | break; |
2129 | case LTT_SEQUENCE: |
2130 | /* Two elements : size and child */ |
2131 | g_assert(type1->element_number != type2->element_number); |
2132 | for(i=0;i<type1->element_number;i++) { |
2133 | if(check_fields_compatibility(event_type1, event_type2, |
2134 | field1->child[0], field2->child[0])) { |
2135 | different = 1; |
2136 | goto end; |
2137 | } |
2138 | } |
2139 | break; |
2140 | case LTT_STRING: |
2141 | break; |
2142 | case LTT_ARRAY: |
2143 | if(field1->field_size != field2->field_size) { |
2144 | different = 1; |
2145 | goto end; |
2146 | } |
2147 | /* Two elements : size and child */ |
2148 | g_assert(type1->element_number != type2->element_number); |
2149 | for(i=0;i<type1->element_number;i++) { |
2150 | if(check_fields_compatibility(event_type1, event_type2, |
2151 | field1->child[0], field2->child[0])) { |
2152 | different = 1; |
2153 | goto end; |
2154 | } |
2155 | } |
2156 | break; |
2157 | case LTT_STRUCT: |
2158 | case LTT_UNION: |
2159 | if(type1->element_number != type2->element_number) { |
2160 | different = 1; |
2161 | break; |
2162 | } |
2163 | for(i=0;i<type1->element_number;i++) { |
2164 | if(check_fields_compatibility(event_type1, event_type2, |
2165 | field1->child[0], field2->child[0])) { |
2166 | different = 1; |
2167 | goto end; |
2168 | } |
2169 | } |
2170 | break; |
2171 | } |
2172 | end: |
2173 | return different; |
2174 | } |
2175 | |
2176 | |
2177 | |
3aee1200 |
2178 | |
2179 | #if 0 |
6cd62ccf |
2180 | /***************************************************************************** |
2181 | *Function name |
2182 | * getFieldtypeSize: get the size of the field type (primitive type) |
2183 | *Input params |
6cd62ccf |
2184 | * evT : event type |
2185 | * offsetRoot : offset from the root |
2186 | * offsetParent : offset from the parrent |
2187 | * fld : field |
2188 | * evD : event data, it may be NULL |
2189 | *Return value |
2190 | * int : size of the field |
2191 | ****************************************************************************/ |
2192 | |
3aee1200 |
2193 | static inline gint getFieldtypeSize(LttTracefile *tf, |
21182d4a |
2194 | LttEventType * evT, gint offsetRoot, |
3aee1200 |
2195 | gint offsetParent, LttField * fld, void *evD) |
6cd62ccf |
2196 | { |
21182d4a |
2197 | gint size, size1, element_number, i, offset1, offset2; |
963b5f2d |
2198 | LttType * type = fld->field_type; |
6cd62ccf |
2199 | |
3aee1200 |
2200 | /* This likely has been tested with gcov : half of them.. */ |
2201 | if(unlikely(fld->field_fixed == 1)){ |
2202 | /* tested : none */ |
2203 | if(unlikely(fld == evT->root_field)) { |
2204 | size = fld->field_size; |
2205 | goto end_getFieldtypeSize; |
21182d4a |
2206 | } |
3aee1200 |
2207 | } |
6cd62ccf |
2208 | |
3aee1200 |
2209 | /* From gcov profiling : half string, half struct, can we gain something |
2210 | * from that ? (Mathieu) */ |
2211 | switch(type->type_class) { |
2212 | case LTT_ARRAY: |
2213 | element_number = (int) type->element_number; |
2214 | if(fld->field_fixed == -1){ |
2215 | size = getFieldtypeSize(tf, evT, offsetRoot, |
2216 | 0,fld->child[0], NULL); |
2217 | if(size == 0){ //has string or sequence |
cf74a6f1 |
2218 | fld->field_fixed = 0; |
3aee1200 |
2219 | }else{ |
2220 | fld->field_fixed = 1; |
2221 | size *= element_number; |
a0d63196 |
2222 | } |
3aee1200 |
2223 | }else if(fld->field_fixed == 0){// has string or sequence |
cf74a6f1 |
2224 | size = 0; |
3aee1200 |
2225 | for(i=0;i<element_number;i++){ |
2226 | size += getFieldtypeSize(tf, evT, offsetRoot+size,size, |
2227 | fld->child[0], evD+size); |
cf74a6f1 |
2228 | } |
3aee1200 |
2229 | }else size = fld->field_size; |
2230 | if(unlikely(!evD)){ |
a0d63196 |
2231 | fld->fixed_root = (offsetRoot==-1) ? 0 : 1; |
2232 | fld->fixed_parent = (offsetParent==-1) ? 0 : 1; |
3aee1200 |
2233 | } |
cf74a6f1 |
2234 | |
3aee1200 |
2235 | break; |
2236 | |
2237 | case LTT_SEQUENCE: |
2238 | size1 = (int) ltt_type_size(fac, type); |
2239 | if(fld->field_fixed == -1){ |
2240 | fld->sequ_number_size = size1; |
2241 | fld->field_fixed = 0; |
2242 | size = getFieldtypeSize(evT, offsetRoot, |
2243 | 0,fld->child[0], NULL); |
2244 | fld->element_size = size; |
2245 | }else{//0: sequence |
2246 | element_number = getIntNumber(tf,size1,evD); |
2247 | type->element_number = element_number; |
2248 | if(fld->element_size > 0){ |
2249 | size = element_number * fld->element_size; |
2250 | }else{//sequence has string or sequence |
2251 | size = 0; |
cf74a6f1 |
2252 | for(i=0;i<element_number;i++){ |
3aee1200 |
2253 | size += getFieldtypeSize(tf, evT, |
2254 | offsetRoot+size+size1,size+size1, |
2255 | fld->child[0], evD+size+size1); |
cf74a6f1 |
2256 | } |
3aee1200 |
2257 | } |
2258 | size += size1; |
2259 | } |
2260 | if(unlikely(!evD)){ |
d37b2aaa |
2261 | fld->fixed_root = (offsetRoot==-1) ? 0 : 1; |
2262 | fld->fixed_parent = (offsetParent==-1) ? 0 : 1; |
3aee1200 |
2263 | } |
cf74a6f1 |
2264 | |
3aee1200 |
2265 | break; |
2266 | |
2267 | case LTT_STRING: |
2268 | size = 0; |
2269 | if(fld->field_fixed == -1){ |
2270 | fld->field_fixed = 0; |
2271 | }else{//0: string |
2272 | /* Hope my implementation is faster than strlen (Mathieu) */ |
2273 | char *ptr=(char*)evD; |
2274 | size = 1; |
2275 | /* from gcov : many many strings are empty, make it the common case.*/ |
2276 | while(unlikely(*ptr != '\0')) { size++; ptr++; } |
2277 | //size = ptr - (char*)evD + 1; //include end : '\0' |
2278 | } |
2279 | fld->fixed_root = (offsetRoot==-1) ? 0 : 1; |
2280 | fld->fixed_parent = (offsetParent==-1) ? 0 : 1; |
2281 | |
2282 | break; |
2283 | |
2284 | case LTT_STRUCT: |
2285 | element_number = (int) type->element_number; |
2286 | size = 0; |
2287 | /* tested with gcov */ |
2288 | if(unlikely(fld->field_fixed == -1)){ |
2289 | offset1 = offsetRoot; |
2290 | offset2 = 0; |
2291 | for(i=0;i<element_number;i++){ |
2292 | size1=getFieldtypeSize(tf, evT,offset1,offset2, |
2293 | fld->child[i], NULL); |
2294 | if(likely(size1 > 0 && size >= 0)){ |
2295 | size += size1; |
2296 | if(likely(offset1 >= 0)) offset1 += size1; |
2297 | offset2 += size1; |
2298 | }else{ |
2299 | size = -1; |
2300 | offset1 = -1; |
2301 | offset2 = -1; |
2302 | } |
a0d63196 |
2303 | } |
3aee1200 |
2304 | if(unlikely(size == -1)){ |
2305 | fld->field_fixed = 0; |
2306 | size = 0; |
2307 | }else fld->field_fixed = 1; |
2308 | }else if(likely(fld->field_fixed == 0)){ |
2309 | offset1 = offsetRoot; |
2310 | offset2 = 0; |
2311 | for(i=0;unlikely(i<element_number);i++){ |
2312 | size=getFieldtypeSize(tf, evT, offset1, offset2, |
2313 | fld->child[i], evD+offset2); |
2314 | offset1 += size; |
2315 | offset2 += size; |
2316 | } |
2317 | size = offset2; |
2318 | }else size = fld->field_size; |
2319 | fld->fixed_root = (offsetRoot==-1) ? 0 : 1; |
2320 | fld->fixed_parent = (offsetParent==-1) ? 0 : 1; |
2321 | break; |
2322 | |
2323 | default: |
2324 | if(unlikely(fld->field_fixed == -1)){ |
2325 | size = (int) ltt_type_size(LTT_GET_BO(tf), type); |
2326 | fld->field_fixed = 1; |
2327 | }else size = fld->field_size; |
2328 | if(unlikely(!evD)){ |
2329 | fld->fixed_root = (offsetRoot==-1) ? 0 : 1; |
2330 | fld->fixed_parent = (offsetParent==-1) ? 0 : 1; |
2331 | } |
2332 | break; |
cf74a6f1 |
2333 | } |
2334 | |
6cd62ccf |
2335 | fld->offset_root = offsetRoot; |
2336 | fld->offset_parent = offsetParent; |
6cd62ccf |
2337 | fld->field_size = size; |
2338 | |
21182d4a |
2339 | end_getFieldtypeSize: |
2340 | |
6cd62ccf |
2341 | return size; |
2342 | } |
3aee1200 |
2343 | #endif //0 |
6cd62ccf |
2344 | |
2345 | /***************************************************************************** |
2346 | *Function name |
eed2ef37 |
2347 | * ltt_get_int : get an integer number |
6cd62ccf |
2348 | *Input params |
3aee1200 |
2349 | * reverse_byte_order: must we reverse the byte order ? |
6cd62ccf |
2350 | * size : the size of the integer |
3aee1200 |
2351 | * ptr : the data pointer |
6cd62ccf |
2352 | *Return value |
cf74a6f1 |
2353 | * gint64 : a 64 bits integer |
6cd62ccf |
2354 | ****************************************************************************/ |
2355 | |
eed2ef37 |
2356 | gint64 ltt_get_int(gboolean reverse_byte_order, gint size, void *data) |
6cd62ccf |
2357 | { |
3aee1200 |
2358 | gint64 val; |
cf74a6f1 |
2359 | |
2360 | switch(size) { |
3aee1200 |
2361 | case 1: val = *((gint8*)data); break; |
2362 | case 2: val = ltt_get_int16(reverse_byte_order, data); break; |
2363 | case 4: val = ltt_get_int32(reverse_byte_order, data); break; |
2364 | case 8: val = ltt_get_int64(reverse_byte_order, data); break; |
2365 | default: val = ltt_get_int64(reverse_byte_order, data); |
2366 | g_critical("get_int : integer size %d unknown", size); |
cf74a6f1 |
2367 | break; |
2368 | } |
2369 | |
3aee1200 |
2370 | return val; |
6cd62ccf |
2371 | } |
3aee1200 |
2372 | |
6cd62ccf |
2373 | /***************************************************************************** |
2374 | *Function name |
eed2ef37 |
2375 | * ltt_get_uint : get an unsigned integer number |
6cd62ccf |
2376 | *Input params |
3aee1200 |
2377 | * reverse_byte_order: must we reverse the byte order ? |
2378 | * size : the size of the integer |
2379 | * ptr : the data pointer |
2380 | *Return value |
2381 | * guint64 : a 64 bits unsigned integer |
6cd62ccf |
2382 | ****************************************************************************/ |
2383 | |
eed2ef37 |
2384 | guint64 ltt_get_uint(gboolean reverse_byte_order, gint size, void *data) |
6cd62ccf |
2385 | { |
3aee1200 |
2386 | guint64 val; |
2387 | |
2388 | switch(size) { |
2389 | case 1: val = *((gint8*)data); break; |
2390 | case 2: val = ltt_get_uint16(reverse_byte_order, data); break; |
2391 | case 4: val = ltt_get_uint32(reverse_byte_order, data); break; |
2392 | case 8: val = ltt_get_uint64(reverse_byte_order, data); break; |
2393 | default: val = ltt_get_uint64(reverse_byte_order, data); |
2394 | g_critical("get_uint : unsigned integer size %d unknown", |
2395 | size); |
2396 | break; |
2397 | } |
2398 | |
2399 | return val; |
6cd62ccf |
2400 | } |
3aee1200 |
2401 | |
2402 | |
a5dcde2f |
2403 | /* get the node name of the system */ |
2404 | |
2405 | char * ltt_trace_system_description_node_name (LttSystemDescription * s) |
2406 | { |
2407 | return s->node_name; |
2408 | } |
2409 | |
2410 | |
2411 | /* get the domain name of the system */ |
2412 | |
2413 | char * ltt_trace_system_description_domain_name (LttSystemDescription * s) |
2414 | { |
2415 | return s->domain_name; |
2416 | } |
2417 | |
2418 | |
2419 | /* get the description of the system */ |
2420 | |
2421 | char * ltt_trace_system_description_description (LttSystemDescription * s) |
2422 | { |
2423 | return s->description; |
2424 | } |
2425 | |
2426 | |
2427 | /* get the start time of the trace */ |
2428 | |
2429 | LttTime ltt_trace_system_description_trace_start_time(LttSystemDescription *s) |
2430 | { |
2431 | return s->trace_start; |
2432 | } |
2433 | |
18206708 |
2434 | |
2435 | LttTracefile *ltt_tracefile_new() |
2436 | { |
2437 | return g_new(LttTracefile, 1); |
2438 | } |
2439 | |
2440 | void ltt_tracefile_destroy(LttTracefile *tf) |
2441 | { |
2442 | g_free(tf); |
2443 | } |
2444 | |
2445 | void ltt_tracefile_copy(LttTracefile *dest, const LttTracefile *src) |
2446 | { |
2447 | *dest = *src; |
2448 | } |
2449 | |
3aee1200 |
2450 | /* Before library loading... */ |
2451 | |
2452 | static void __attribute__((constructor)) init(void) |
2453 | { |
2454 | LTT_FACILITY_NAME_HEARTBEAT = g_quark_from_string("heartbeat"); |
2455 | LTT_EVENT_NAME_HEARTBEAT = g_quark_from_string("heartbeat"); |
2456 | |
3865ea09 |
2457 | LTT_TRACEFILE_NAME_FACILITIES = g_quark_from_string("/control/facilities"); |
3aee1200 |
2458 | } |
2459 | |