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 | |
b7576a11 |
194 | /* trace can be NULL |
195 | * |
196 | * Return value : 0 success, 1 bad tracefile |
197 | */ |
198 | int parse_trace_header(void *header, LttTracefile *tf, LttTrace *t) |
199 | { |
200 | guint32 *magic_number = (guint32*)header; |
201 | struct ltt_trace_header_any *any = (struct ltt_trace_header_any *)header; |
202 | |
203 | if(*magic_number == LTT_MAGIC_NUMBER) |
204 | tf->reverse_bo = 0; |
205 | else if(*magic_number == LTT_REV_MAGIC_NUMBER) |
206 | tf->reverse_bo = 1; |
207 | else /* invalid magic number, bad tracefile ! */ |
208 | return 1; |
209 | |
210 | /* Get float byte order : might be different from int byte order |
211 | * (or is set to 0 if the trace has no float (kernel trace)) */ |
212 | tf->float_word_order = any->float_word_order; |
213 | |
214 | if(t) { |
215 | t->arch_type = ltt_get_uint32(LTT_GET_BO(tf), |
216 | &any->arch_type); |
217 | t->arch_variant = ltt_get_uint32(LTT_GET_BO(tf), |
218 | &any->arch_variant); |
219 | t->arch_size = any->arch_size; |
220 | t->ltt_major_version = any->major_version; |
221 | t->ltt_minor_version = any->minor_version; |
222 | t->flight_recorder = any->flight_recorder; |
223 | t->has_heartbeat = any->has_heartbeat; |
224 | t->has_alignment = any->has_alignment; |
225 | t->has_tsc = any->has_tsc; |
226 | } |
227 | |
228 | |
229 | switch(any->major_version) { |
230 | |
231 | case 0: |
232 | switch(any->minor_version) { |
233 | case 3: |
234 | { |
823820eb |
235 | tf->buffer_header_size = |
236 | sizeof(struct ltt_block_start_header) |
237 | + sizeof(struct ltt_trace_header_0_3); |
b7576a11 |
238 | } |
239 | break; |
240 | default: |
241 | g_warning("Unsupported trace version : %hhu.%hhu", |
242 | any->major_version, any->minor_version); |
243 | return 1; |
244 | } |
245 | break; |
246 | |
247 | default: |
248 | g_warning("Unsupported trace version : %hhu.%hhu", |
249 | any->major_version, any->minor_version); |
250 | return 1; |
251 | } |
252 | |
253 | |
254 | return 0; |
255 | } |
256 | |
257 | |
258 | |
6cd62ccf |
259 | /***************************************************************************** |
260 | *Function name |
963b5f2d |
261 | * ltt_tracefile_open : open a trace file, construct a LttTracefile |
6cd62ccf |
262 | *Input params |
963b5f2d |
263 | * t : the trace containing the tracefile |
264 | * fileName : path name of the trace file |
3aee1200 |
265 | * tf : the tracefile structure |
6cd62ccf |
266 | *Return value |
3aee1200 |
267 | * : 0 for success, -1 otherwise. |
6cd62ccf |
268 | ****************************************************************************/ |
269 | |
3aee1200 |
270 | gint ltt_tracefile_open(LttTrace *t, gchar * fileName, LttTracefile *tf) |
6cd62ccf |
271 | { |
963b5f2d |
272 | struct stat lTDFStat; /* Trace data file status */ |
3aee1200 |
273 | struct ltt_block_start_header *header; |
b77d1b57 |
274 | int page_size = getpagesize(); |
6cd62ccf |
275 | |
276 | //open the file |
d3d34f49 |
277 | tf->long_name = g_quark_from_string(fileName); |
963b5f2d |
278 | tf->trace = t; |
3865ea09 |
279 | tf->fd = open(fileName, O_RDONLY); |
6cd62ccf |
280 | if(tf->fd < 0){ |
2a74fbf4 |
281 | g_warning("Unable to open input data file %s\n", fileName); |
3aee1200 |
282 | goto end; |
6cd62ccf |
283 | } |
284 | |
285 | // Get the file's status |
286 | if(fstat(tf->fd, &lTDFStat) < 0){ |
2a74fbf4 |
287 | g_warning("Unable to get the status of the input data file %s\n", fileName); |
3aee1200 |
288 | goto close_file; |
6cd62ccf |
289 | } |
290 | |
291 | // Is the file large enough to contain a trace |
823820eb |
292 | if(lTDFStat.st_size < |
9ea7b94b |
293 | (off_t)(sizeof(struct ltt_block_start_header) |
294 | + sizeof(struct ltt_trace_header_any))){ |
8710c6c7 |
295 | g_print("The input data file %s does not contain a trace\n", fileName); |
3aee1200 |
296 | goto close_file; |
297 | } |
298 | |
299 | /* Temporarily map the buffer start header to get trace information */ |
300 | /* Multiple of pages aligned head */ |
b77d1b57 |
301 | tf->buffer.head = mmap(0, |
9ea7b94b |
302 | PAGE_ALIGN(sizeof(struct ltt_block_start_header) |
303 | + sizeof(struct ltt_trace_header_any)), PROT_READ, |
3aee1200 |
304 | MAP_PRIVATE, tf->fd, 0); |
3865ea09 |
305 | if(tf->buffer.head == MAP_FAILED) { |
3aee1200 |
306 | perror("Error in allocating memory for buffer of tracefile"); |
307 | goto close_file; |
6cd62ccf |
308 | } |
3865ea09 |
309 | g_assert( ( (guint)tf->buffer.head&(8-1) ) == 0); // make sure it's aligned. |
3aee1200 |
310 | |
311 | header = (struct ltt_block_start_header*)tf->buffer.head; |
6cd62ccf |
312 | |
51551c6f |
313 | if(parse_trace_header(header->trace, tf, NULL)) { |
314 | g_warning("parse_trace_header error"); |
315 | goto unmap_file; |
316 | } |
3aee1200 |
317 | |
6cd62ccf |
318 | //store the size of the file |
319 | tf->file_size = lTDFStat.st_size; |
f628823c |
320 | tf->buf_size = ltt_get_uint32(LTT_GET_BO(tf), &header->buf_size); |
321 | tf->num_blocks = tf->file_size / tf->buf_size; |
322 | |
323 | if(munmap(tf->buffer.head, |
9ea7b94b |
324 | PAGE_ALIGN(sizeof(struct ltt_block_start_header) |
325 | + sizeof(struct ltt_trace_header_any)))) { |
f628823c |
326 | g_warning("unmap size : %u\n", |
9ea7b94b |
327 | PAGE_ALIGN(sizeof(struct ltt_block_start_header) |
328 | + sizeof(struct ltt_trace_header_any))); |
f628823c |
329 | perror("munmap error"); |
330 | g_assert(0); |
331 | } |
3aee1200 |
332 | tf->buffer.head = NULL; |
6cd62ccf |
333 | |
963b5f2d |
334 | //read the first block |
3aee1200 |
335 | if(map_block(tf,0)) { |
336 | perror("Cannot map block for tracefile"); |
337 | goto close_file; |
338 | } |
339 | |
340 | return 0; |
6cd62ccf |
341 | |
3aee1200 |
342 | /* Error */ |
343 | unmap_file: |
f628823c |
344 | if(munmap(tf->buffer.head, |
9ea7b94b |
345 | PAGE_ALIGN(sizeof(struct ltt_block_start_header) |
346 | + sizeof(struct ltt_trace_header_any)))) { |
f628823c |
347 | g_warning("unmap size : %u\n", |
9ea7b94b |
348 | PAGE_ALIGN(sizeof(struct ltt_block_start_header) |
349 | + sizeof(struct ltt_trace_header_any))); |
f628823c |
350 | perror("munmap error"); |
351 | g_assert(0); |
352 | } |
3aee1200 |
353 | close_file: |
3865ea09 |
354 | close(tf->fd); |
3aee1200 |
355 | end: |
356 | return -1; |
6cd62ccf |
357 | } |
358 | |
d3d34f49 |
359 | LttTrace *ltt_tracefile_get_trace(LttTracefile *tf) |
360 | { |
361 | return tf->trace; |
362 | } |
363 | |
3aee1200 |
364 | #if 0 |
6cd62ccf |
365 | /***************************************************************************** |
963b5f2d |
366 | *Open control and per cpu tracefiles |
6cd62ccf |
367 | ****************************************************************************/ |
368 | |
45e14832 |
369 | void ltt_tracefile_open_cpu(LttTrace *t, gchar * tracefile_name) |
6cd62ccf |
370 | { |
963b5f2d |
371 | LttTracefile * tf; |
372 | tf = ltt_tracefile_open(t,tracefile_name); |
4a6c8e36 |
373 | if(!tf) return; |
963b5f2d |
374 | t->per_cpu_tracefile_number++; |
375 | g_ptr_array_add(t->per_cpu_tracefiles, tf); |
6cd62ccf |
376 | } |
377 | |
45e14832 |
378 | gint ltt_tracefile_open_control(LttTrace *t, gchar * control_name) |
6cd62ccf |
379 | { |
963b5f2d |
380 | LttTracefile * tf; |
c02ea99f |
381 | LttEvent ev; |
963b5f2d |
382 | LttFacility * f; |
963b5f2d |
383 | void * pos; |
384 | FacilityLoad fLoad; |
8d1e6362 |
385 | unsigned int i; |
963b5f2d |
386 | |
387 | tf = ltt_tracefile_open(t,control_name); |
2a74fbf4 |
388 | if(!tf) { |
389 | g_warning("ltt_tracefile_open_control : bad file descriptor"); |
390 | return -1; |
391 | } |
963b5f2d |
392 | t->control_tracefile_number++; |
393 | g_ptr_array_add(t->control_tracefiles,tf); |
394 | |
395 | //parse facilities tracefile to get base_id |
542ceddd |
396 | if(strcmp(&control_name[strlen(control_name)-10],"facilities") ==0){ |
963b5f2d |
397 | while(1){ |
c02ea99f |
398 | if(!ltt_tracefile_read(tf,&ev)) return 0; // end of file |
40331ba8 |
399 | |
c02ea99f |
400 | if(ev.event_id == TRACE_FACILITY_LOAD){ |
401 | pos = ev.data; |
45e14832 |
402 | fLoad.name = (gchar*)pos; |
47a166fc |
403 | fLoad.checksum = *(LttChecksum*)(pos + strlen(fLoad.name)); |
cbd41522 |
404 | fLoad.base_code = *(guint32 *)(pos + strlen(fLoad.name) + sizeof(LttChecksum)); |
963b5f2d |
405 | |
406 | for(i=0;i<t->facility_number;i++){ |
407 | f = (LttFacility*)g_ptr_array_index(t->facilities,i); |
408 | if(strcmp(f->name,fLoad.name)==0 && fLoad.checksum==f->checksum){ |
409 | f->base_id = fLoad.base_code; |
410 | break; |
411 | } |
412 | } |
2a74fbf4 |
413 | if(i==t->facility_number) { |
8d1e6362 |
414 | g_warning("Facility: %s, checksum: %u is not found", |
415 | fLoad.name,(unsigned int)fLoad.checksum); |
2a74fbf4 |
416 | return -1; |
417 | } |
c02ea99f |
418 | }else if(ev.event_id == TRACE_BLOCK_START){ |
40331ba8 |
419 | continue; |
c02ea99f |
420 | }else if(ev.event_id == TRACE_BLOCK_END){ |
40331ba8 |
421 | break; |
2a74fbf4 |
422 | }else { |
8d1e6362 |
423 | g_warning("Not valid facilities trace file"); |
2a74fbf4 |
424 | return -1; |
425 | } |
963b5f2d |
426 | } |
427 | } |
2a74fbf4 |
428 | return 0; |
6cd62ccf |
429 | } |
3aee1200 |
430 | #endif //0 |
6cd62ccf |
431 | |
432 | /***************************************************************************** |
433 | *Function name |
963b5f2d |
434 | * ltt_tracefile_close: close a trace file, |
6cd62ccf |
435 | *Input params |
963b5f2d |
436 | * t : tracefile which will be closed |
6cd62ccf |
437 | ****************************************************************************/ |
438 | |
963b5f2d |
439 | void ltt_tracefile_close(LttTracefile *t) |
6cd62ccf |
440 | { |
f628823c |
441 | int page_size = getpagesize(); |
442 | |
3aee1200 |
443 | if(t->buffer.head != NULL) |
f628823c |
444 | if(munmap(t->buffer.head, PAGE_ALIGN(t->buf_size))) { |
445 | g_warning("unmap size : %u\n", |
446 | PAGE_ALIGN(t->buf_size)); |
447 | perror("munmap error"); |
448 | g_assert(0); |
449 | } |
450 | |
3865ea09 |
451 | close(t->fd); |
963b5f2d |
452 | } |
6cd62ccf |
453 | |
6cd62ccf |
454 | |
963b5f2d |
455 | /***************************************************************************** |
456 | *Get system information |
457 | ****************************************************************************/ |
3aee1200 |
458 | #if 0 |
45e14832 |
459 | gint getSystemInfo(LttSystemDescription* des, gchar * pathname) |
963b5f2d |
460 | { |
45e14832 |
461 | int fd; |
462 | GIOChannel *iochan; |
463 | gchar *buf = NULL; |
464 | gsize length; |
43da6a59 |
465 | |
466 | GMarkupParseContext * context; |
2a74fbf4 |
467 | GError * error = NULL; |
43da6a59 |
468 | GMarkupParser markup_parser = |
469 | { |
470 | parser_start_element, |
8d1e6362 |
471 | NULL, |
43da6a59 |
472 | parser_characters, |
473 | NULL, /* passthrough */ |
474 | NULL /* error */ |
475 | }; |
963b5f2d |
476 | |
45e14832 |
477 | fd = g_open(pathname, O_RDONLY, 0); |
478 | if(fd == -1){ |
2a74fbf4 |
479 | g_warning("Can not open file : %s\n", pathname); |
480 | return -1; |
6cd62ccf |
481 | } |
963b5f2d |
482 | |
45e14832 |
483 | iochan = g_io_channel_unix_new(fd); |
484 | |
43da6a59 |
485 | context = g_markup_parse_context_new(&markup_parser, 0, des,NULL); |
6cd62ccf |
486 | |
45e14832 |
487 | //while(fgets(buf,DIR_NAME_SIZE, fp) != NULL){ |
488 | while(g_io_channel_read_line(iochan, &buf, &length, NULL, &error) |
489 | != G_IO_STATUS_EOF) { |
490 | |
491 | if(error != NULL) { |
492 | g_warning("Can not read xml file: \n%s\n", error->message); |
493 | g_error_free(error); |
494 | } |
495 | if(!g_markup_parse_context_parse(context, buf, length, &error)){ |
2a74fbf4 |
496 | if(error != NULL) { |
497 | g_warning("Can not parse xml file: \n%s\n", error->message); |
498 | g_error_free(error); |
499 | } |
500 | g_markup_parse_context_free(context); |
45e14832 |
501 | |
502 | g_io_channel_shutdown(iochan, FALSE, &error); /* No flush */ |
503 | if(error != NULL) { |
504 | g_warning("Can not close file: \n%s\n", error->message); |
505 | g_error_free(error); |
506 | } |
507 | |
508 | close(fd); |
2a74fbf4 |
509 | return -1; |
43da6a59 |
510 | } |
963b5f2d |
511 | } |
2a74fbf4 |
512 | g_markup_parse_context_free(context); |
45e14832 |
513 | |
514 | g_io_channel_shutdown(iochan, FALSE, &error); /* No flush */ |
515 | if(error != NULL) { |
516 | g_warning("Can not close file: \n%s\n", error->message); |
517 | g_error_free(error); |
518 | } |
519 | |
520 | g_close(fd); |
521 | |
522 | g_free(buf); |
2a74fbf4 |
523 | return 0; |
6cd62ccf |
524 | } |
3aee1200 |
525 | #endif //0 |
6cd62ccf |
526 | |
527 | /***************************************************************************** |
963b5f2d |
528 | *The following functions get facility/tracefile information |
6cd62ccf |
529 | ****************************************************************************/ |
3aee1200 |
530 | #if 0 |
45e14832 |
531 | gint getFacilityInfo(LttTrace *t, gchar* eventdefs) |
6cd62ccf |
532 | { |
45e14832 |
533 | GDir * dir; |
534 | const gchar * name; |
8d1e6362 |
535 | unsigned int i,j; |
963b5f2d |
536 | LttFacility * f; |
537 | LttEventType * et; |
45e14832 |
538 | gchar fullname[DIR_NAME_SIZE]; |
539 | GError * error = NULL; |
540 | |
541 | dir = g_dir_open(eventdefs, 0, &error); |
963b5f2d |
542 | |
45e14832 |
543 | if(error != NULL) { |
544 | g_warning("Can not open directory: %s, %s\n", eventdefs, error->message); |
545 | g_error_free(error); |
2a74fbf4 |
546 | return -1; |
547 | } |
963b5f2d |
548 | |
45e14832 |
549 | while((name = g_dir_read_name(dir)) != NULL){ |
550 | if(!g_pattern_match_simple("*.xml", name)) continue; |
551 | strcpy(fullname,eventdefs); |
552 | strcat(fullname,name); |
553 | ltt_facility_open(t,fullname); |
554 | } |
555 | g_dir_close(dir); |
963b5f2d |
556 | |
963b5f2d |
557 | for(j=0;j<t->facility_number;j++){ |
8710c6c7 |
558 | f = (LttFacility*)g_ptr_array_index(t->facilities, j); |
963b5f2d |
559 | for(i=0; i<f->event_number; i++){ |
560 | et = f->events[i]; |
40331ba8 |
561 | setFieldsOffset(NULL, et, NULL, t); |
963b5f2d |
562 | } |
563 | } |
2a74fbf4 |
564 | return 0; |
963b5f2d |
565 | } |
3aee1200 |
566 | #endif //0 |
6cd62ccf |
567 | |
963b5f2d |
568 | /***************************************************************************** |
569 | *A trace is specified as a pathname to the directory containing all the |
570 | *associated data (control tracefiles, per cpu tracefiles, event |
571 | *descriptions...). |
572 | * |
573 | *When a trace is closed, all the associated facilities, types and fields |
574 | *are released as well. |
8d1e6362 |
575 | */ |
576 | |
577 | |
578 | /**************************************************************************** |
579 | * get_absolute_pathname |
803229fa |
580 | * |
8d1e6362 |
581 | * return the unique pathname in the system |
582 | * |
ef35d837 |
583 | * MD : Fixed this function so it uses realpath, dealing well with |
584 | * forgotten cases (.. were not used correctly before). |
803229fa |
585 | * |
963b5f2d |
586 | ****************************************************************************/ |
45e14832 |
587 | void get_absolute_pathname(const gchar *pathname, gchar * abs_pathname) |
9f797243 |
588 | { |
9f797243 |
589 | abs_pathname[0] = '\0'; |
803229fa |
590 | |
ef35d837 |
591 | if ( realpath (pathname, abs_pathname) != NULL) |
592 | return; |
593 | else |
594 | { |
8d1e6362 |
595 | /* error, return the original path unmodified */ |
ef35d837 |
596 | strcpy(abs_pathname, pathname); |
9f797243 |
597 | return; |
598 | } |
ef35d837 |
599 | return; |
9f797243 |
600 | } |
601 | |
3aee1200 |
602 | /* Search for something like : .*_.* |
603 | * |
604 | * The left side is the name, the right side is the number. |
605 | */ |
606 | |
607 | int get_tracefile_name_number(const gchar *raw_name, |
608 | GQuark *name, |
609 | guint *num) |
6cd62ccf |
610 | { |
3aee1200 |
611 | guint raw_name_len = strlen(raw_name); |
612 | gchar char_name[PATH_MAX]; |
3aee1200 |
613 | int i; |
614 | int underscore_pos; |
615 | long int cpu_num; |
616 | gchar *endptr; |
617 | |
618 | for(i=raw_name_len-1;i>=0;i--) { |
619 | if(raw_name[i] == '_') break; |
620 | } |
621 | if(i==0) /* Either not found or name length is 0 */ |
622 | return -1; |
623 | underscore_pos = i; |
963b5f2d |
624 | |
3aee1200 |
625 | cpu_num = strtol(raw_name+underscore_pos+1, &endptr, 10); |
626 | |
627 | if(endptr == raw_name+underscore_pos+1) |
628 | return -1; /* No digit */ |
629 | if(cpu_num == LONG_MIN || cpu_num == LONG_MAX) |
630 | return -1; /* underflow / overflow */ |
1a2ceb63 |
631 | |
3aee1200 |
632 | strncpy(char_name, raw_name, underscore_pos); |
1a2ceb63 |
633 | |
69bd59ed |
634 | char_name[underscore_pos] = '\0'; |
635 | |
3aee1200 |
636 | *name = g_quark_from_string(char_name); |
637 | *num = cpu_num; |
b333a76b |
638 | |
3aee1200 |
639 | return 0; |
640 | } |
963b5f2d |
641 | |
3aee1200 |
642 | |
3865ea09 |
643 | GData **ltt_trace_get_tracefiles_groups(LttTrace *trace) |
77175651 |
644 | { |
3865ea09 |
645 | return &trace->tracefiles; |
77175651 |
646 | } |
647 | |
648 | |
3865ea09 |
649 | void compute_tracefile_group(GQuark key_id, |
650 | GArray *group, |
651 | struct compute_tracefile_group_args *args) |
77175651 |
652 | { |
653 | int i; |
654 | LttTracefile *tf; |
655 | |
656 | for(i=0; i<group->len; i++) { |
657 | tf = &g_array_index (group, LttTracefile, i); |
658 | if(tf->cpu_online) |
3865ea09 |
659 | args->func(tf, args->func_args); |
77175651 |
660 | } |
661 | } |
662 | |
663 | |
3aee1200 |
664 | void ltt_tracefile_group_destroy(gpointer data) |
665 | { |
666 | GArray *group = (GArray *)data; |
667 | int i; |
668 | LttTracefile *tf; |
669 | |
670 | for(i=0; i<group->len; i++) { |
671 | tf = &g_array_index (group, LttTracefile, i); |
672 | if(tf->cpu_online) |
673 | ltt_tracefile_close(tf); |
674 | } |
675 | g_array_free(group, TRUE); |
6cd62ccf |
676 | } |
677 | |
3aee1200 |
678 | gboolean ltt_tracefile_group_has_cpu_online(gpointer data) |
49bf71b5 |
679 | { |
3aee1200 |
680 | GArray *group = (GArray *)data; |
681 | int i; |
682 | LttTracefile *tf; |
683 | |
684 | for(i=0; i<group->len; i++) { |
685 | tf = &g_array_index (group, LttTracefile, i); |
686 | if(tf->cpu_online) return 1; |
687 | } |
688 | return 0; |
49bf71b5 |
689 | } |
690 | |
691 | |
3aee1200 |
692 | /* Open each tracefile under a specific directory. Put them in a |
693 | * GData : permits to access them using their tracefile group pathname. |
694 | * i.e. access control/modules tracefile group by index : |
695 | * "control/module". |
3865ea09 |
696 | * |
697 | * relative path is the path relative to the trace root |
698 | * root path is the full path |
3aee1200 |
699 | * |
700 | * A tracefile group is simply an array where all the per cpu tracefiles sits. |
701 | */ |
702 | |
69bd59ed |
703 | static int open_tracefiles(LttTrace *trace, gchar *root_path, |
704 | gchar *relative_path) |
f7afe191 |
705 | { |
3aee1200 |
706 | DIR *dir = opendir(root_path); |
707 | struct dirent *entry; |
708 | struct stat stat_buf; |
709 | int ret; |
3865ea09 |
710 | |
69bd59ed |
711 | gchar path[PATH_MAX]; |
3aee1200 |
712 | int path_len; |
69bd59ed |
713 | gchar *path_ptr; |
3aee1200 |
714 | |
3865ea09 |
715 | int rel_path_len; |
69bd59ed |
716 | gchar rel_path[PATH_MAX]; |
717 | gchar *rel_path_ptr; |
cb03932a |
718 | LttTracefile tmp_tf; |
3865ea09 |
719 | |
3aee1200 |
720 | if(dir == NULL) { |
721 | perror(root_path); |
722 | return ENOENT; |
723 | } |
724 | |
725 | strncpy(path, root_path, PATH_MAX-1); |
726 | path_len = strlen(path); |
727 | path[path_len] = '/'; |
728 | path_len++; |
729 | path_ptr = path + path_len; |
730 | |
3865ea09 |
731 | strncpy(rel_path, relative_path, PATH_MAX-1); |
732 | rel_path_len = strlen(rel_path); |
733 | rel_path[rel_path_len] = '/'; |
734 | rel_path_len++; |
735 | rel_path_ptr = rel_path + rel_path_len; |
736 | |
3aee1200 |
737 | while((entry = readdir(dir)) != NULL) { |
738 | |
739 | if(entry->d_name[0] == '.') continue; |
740 | |
741 | strncpy(path_ptr, entry->d_name, PATH_MAX - path_len); |
3865ea09 |
742 | strncpy(rel_path_ptr, entry->d_name, PATH_MAX - rel_path_len); |
3aee1200 |
743 | |
744 | ret = stat(path, &stat_buf); |
745 | if(ret == -1) { |
746 | perror(path); |
747 | continue; |
748 | } |
749 | |
750 | g_debug("Tracefile file or directory : %s\n", path); |
751 | |
74a588bb |
752 | if(strcmp(rel_path, "/eventdefs") == 0) continue; |
753 | |
3aee1200 |
754 | if(S_ISDIR(stat_buf.st_mode)) { |
755 | |
756 | g_debug("Entering subdirectory...\n"); |
3865ea09 |
757 | ret = open_tracefiles(trace, path, rel_path); |
3aee1200 |
758 | if(ret < 0) continue; |
759 | } else if(S_ISREG(stat_buf.st_mode)) { |
3aee1200 |
760 | GQuark name; |
761 | guint num; |
762 | GArray *group; |
3aee1200 |
763 | |
3865ea09 |
764 | if(get_tracefile_name_number(rel_path, &name, &num)) |
3aee1200 |
765 | continue; /* invalid name */ |
3865ea09 |
766 | |
cb03932a |
767 | g_debug("Opening file.\n"); |
768 | if(ltt_tracefile_open(trace, path, &tmp_tf)) { |
769 | g_info("Error opening tracefile %s", path); |
770 | |
771 | continue; /* error opening the tracefile : bad magic number ? */ |
772 | } |
773 | |
3865ea09 |
774 | g_debug("Tracefile name is %s and number is %u", |
775 | g_quark_to_string(name), num); |
776 | |
cb03932a |
777 | tmp_tf.cpu_online = 1; |
778 | tmp_tf.cpu_num = num; |
d3d34f49 |
779 | tmp_tf.name = name; |
cb03932a |
780 | |
3865ea09 |
781 | group = g_datalist_id_get_data(&trace->tracefiles, name); |
3aee1200 |
782 | if(group == NULL) { |
783 | /* Elements are automatically cleared when the array is allocated. |
784 | * It makes the cpu_online variable set to 0 : cpu offline, by default. |
785 | */ |
786 | group = g_array_sized_new (FALSE, TRUE, sizeof(LttTracefile), 10); |
3865ea09 |
787 | g_datalist_id_set_data_full(&trace->tracefiles, name, |
3aee1200 |
788 | group, ltt_tracefile_group_destroy); |
789 | } |
cb03932a |
790 | |
3aee1200 |
791 | /* Add the per cpu tracefile to the named group */ |
792 | unsigned int old_len = group->len; |
793 | if(num+1 > old_len) |
794 | group = g_array_set_size(group, num+1); |
cb03932a |
795 | g_array_index (group, LttTracefile, num) = tmp_tf; |
3aee1200 |
796 | |
3aee1200 |
797 | } |
798 | } |
799 | |
800 | closedir(dir); |
801 | |
802 | return 0; |
f7afe191 |
803 | } |
804 | |
3aee1200 |
805 | /* ltt_get_facility_description |
806 | * |
29e7c5b3 |
807 | * Opens the file corresponding to the requested facility (identified by fac_id |
3aee1200 |
808 | * and checksum). |
809 | * |
810 | * The name searched is : %trace root%/eventdefs/facname_checksum.xml |
811 | * |
812 | * Returns 0 on success, or 1 on failure. |
813 | */ |
814 | |
815 | static int ltt_get_facility_description(LttFacility *f, |
816 | LttTrace *t, |
817 | LttTracefile *fac_tf) |
6cd62ccf |
818 | { |
3aee1200 |
819 | char desc_file_name[PATH_MAX]; |
820 | const gchar *text; |
821 | guint textlen; |
822 | gint err; |
3aee1200 |
823 | |
824 | text = g_quark_to_string(t->pathname); |
825 | textlen = strlen(text); |
826 | |
827 | if(textlen >= PATH_MAX) goto name_error; |
828 | strcpy(desc_file_name, text); |
829 | |
830 | text = "/eventdefs/"; |
831 | textlen+=strlen(text); |
832 | if(textlen >= PATH_MAX) goto name_error; |
833 | strcat(desc_file_name, text); |
834 | |
835 | text = g_quark_to_string(f->name); |
836 | textlen+=strlen(text); |
837 | if(textlen >= PATH_MAX) goto name_error; |
838 | strcat(desc_file_name, text); |
29e7c5b3 |
839 | #if 0 |
3aee1200 |
840 | text = "_"; |
841 | textlen+=strlen(text); |
842 | if(textlen >= PATH_MAX) goto name_error; |
843 | strcat(desc_file_name, text); |
963b5f2d |
844 | |
3aee1200 |
845 | err = snprintf(desc_file_name+textlen, PATH_MAX-textlen-1, |
846 | "%u", f->checksum); |
d2083cab |
847 | if(err < 0) goto name_error; |
3aee1200 |
848 | |
849 | textlen=strlen(desc_file_name); |
850 | |
29e7c5b3 |
851 | #endif //0 |
3aee1200 |
852 | text = ".xml"; |
853 | textlen+=strlen(text); |
854 | if(textlen >= PATH_MAX) goto name_error; |
855 | strcat(desc_file_name, text); |
29e7c5b3 |
856 | |
3aee1200 |
857 | err = ltt_facility_open(f, t, desc_file_name); |
858 | if(err) goto facility_error; |
3aee1200 |
859 | |
860 | return 0; |
861 | |
862 | facility_error: |
863 | name_error: |
864 | return 1; |
865 | } |
866 | |
867 | static void ltt_fac_ids_destroy(gpointer data) |
868 | { |
869 | GArray *fac_ids = (GArray *)data; |
963b5f2d |
870 | |
3aee1200 |
871 | g_array_free(fac_ids, TRUE); |
872 | } |
873 | |
874 | |
875 | /* Presumes the tracefile is already seeked at the beginning. It makes sense, |
876 | * because it must be done just after the opening */ |
877 | static int ltt_process_facility_tracefile(LttTracefile *tf) |
878 | { |
879 | int err; |
880 | LttFacility *fac; |
881 | GArray *fac_ids; |
cb03932a |
882 | guint i; |
883 | LttEventType *et; |
3aee1200 |
884 | |
885 | while(1) { |
886 | err = ltt_tracefile_read_seek(tf); |
887 | if(err == EPERM) goto seek_error; |
888 | else if(err == ERANGE) break; /* End of tracefile */ |
889 | |
890 | err = ltt_tracefile_read_update_event(tf); |
891 | if(err) goto update_error; |
892 | |
893 | /* We are on a facility load/or facility unload/ or heartbeat event */ |
894 | /* The rules are : |
895 | * * facility 0 is hardcoded : this is the core facility. It will be shown |
896 | * in the facility array though, and is shown as "loaded builtin" in the |
897 | * trace. |
898 | * It contains event : |
899 | * 0 : facility load |
900 | * 1 : facility unload |
901 | * 2 : state dump facility load |
d2083cab |
902 | * 3 : heartbeat |
3aee1200 |
903 | */ |
d2083cab |
904 | if(tf->event.facility_id != LTT_FACILITY_CORE) { |
905 | /* Should only contain core facility */ |
3aee1200 |
906 | g_warning("Error in processing facility file %s, " |
907 | "should not contain facility id %u.", g_quark_to_string(tf->name), |
908 | tf->event.facility_id); |
909 | err = EPERM; |
910 | goto fac_id_error; |
d2083cab |
911 | } else { |
3aee1200 |
912 | |
913 | struct LttFacilityLoad *fac_load_data; |
b77d1b57 |
914 | struct LttStateDumpFacilityLoad *fac_state_dump_load_data; |
3aee1200 |
915 | char *fac_name; |
916 | |
917 | // FIXME align |
918 | switch((enum ltt_core_events)tf->event.event_id) { |
919 | case LTT_EVENT_FACILITY_LOAD: |
b77d1b57 |
920 | fac_name = (char*)(tf->event.data); |
d2083cab |
921 | g_debug("Doing LTT_EVENT_FACILITY_LOAD of facility %s", |
922 | fac_name); |
3aee1200 |
923 | fac_load_data = |
b77d1b57 |
924 | (struct LttFacilityLoad *) |
925 | (tf->event.data + strlen(fac_name) + 1); |
3aee1200 |
926 | fac = &g_array_index (tf->trace->facilities_by_num, LttFacility, |
927 | ltt_get_uint32(LTT_GET_BO(tf), &fac_load_data->id)); |
928 | g_assert(fac->exists == 0); |
929 | fac->name = g_quark_from_string(fac_name); |
930 | fac->checksum = ltt_get_uint32(LTT_GET_BO(tf), |
931 | &fac_load_data->checksum); |
932 | fac->id = ltt_get_uint32(LTT_GET_BO(tf), &fac_load_data->id); |
933 | fac->pointer_size = ltt_get_uint32(LTT_GET_BO(tf), |
934 | &fac_load_data->pointer_size); |
cb03932a |
935 | fac->long_size = ltt_get_uint32(LTT_GET_BO(tf), |
936 | &fac_load_data->long_size); |
eed2ef37 |
937 | fac->size_t_size = ltt_get_uint32(LTT_GET_BO(tf), |
3aee1200 |
938 | &fac_load_data->size_t_size); |
939 | fac->alignment = ltt_get_uint32(LTT_GET_BO(tf), |
940 | &fac_load_data->alignment); |
941 | |
942 | if(ltt_get_facility_description(fac, tf->trace, tf)) |
cb03932a |
943 | continue; /* error opening description */ |
3aee1200 |
944 | |
945 | fac->trace = tf->trace; |
cb03932a |
946 | |
947 | /* Preset the field offsets */ |
948 | for(i=0; i<fac->events->len; i++){ |
949 | et = &g_array_index(fac->events, LttEventType, i); |
950 | set_fields_offsets(tf, et); |
951 | } |
952 | |
3aee1200 |
953 | fac->exists = 1; |
954 | |
77175651 |
955 | fac_ids = g_datalist_id_get_data(&tf->trace->facilities_by_name, |
956 | fac->name); |
3aee1200 |
957 | if(fac_ids == NULL) { |
958 | fac_ids = g_array_sized_new (FALSE, TRUE, sizeof(guint), 1); |
959 | g_datalist_id_set_data_full(&tf->trace->facilities_by_name, |
960 | fac->name, |
961 | fac_ids, ltt_fac_ids_destroy); |
962 | } |
963 | g_array_append_val(fac_ids, fac->id); |
964 | |
965 | break; |
966 | case LTT_EVENT_FACILITY_UNLOAD: |
d2083cab |
967 | g_debug("Doing LTT_EVENT_FACILITY_UNLOAD"); |
3aee1200 |
968 | /* We don't care about unload : facilities ID are valid for the whole |
969 | * trace. They simply won't be used after the unload. */ |
970 | break; |
971 | case LTT_EVENT_STATE_DUMP_FACILITY_LOAD: |
b77d1b57 |
972 | fac_name = (char*)(tf->event.data); |
d2083cab |
973 | g_debug("Doing LTT_EVENT_STATE_DUMP_FACILITY_LOAD of facility %s", |
974 | fac_name); |
b77d1b57 |
975 | fac_state_dump_load_data = |
d2083cab |
976 | (struct LttStateDumpFacilityLoad *) |
b77d1b57 |
977 | (tf->event.data + strlen(fac_name) + 1); |
3aee1200 |
978 | fac = &g_array_index (tf->trace->facilities_by_num, LttFacility, |
b77d1b57 |
979 | ltt_get_uint32(LTT_GET_BO(tf), &fac_state_dump_load_data->id)); |
3aee1200 |
980 | g_assert(fac->exists == 0); |
981 | fac->name = g_quark_from_string(fac_name); |
982 | fac->checksum = ltt_get_uint32(LTT_GET_BO(tf), |
d2083cab |
983 | &fac_state_dump_load_data->checksum); |
984 | fac->id = fac_state_dump_load_data->id; |
3aee1200 |
985 | fac->pointer_size = ltt_get_uint32(LTT_GET_BO(tf), |
d2083cab |
986 | &fac_state_dump_load_data->pointer_size); |
cb03932a |
987 | fac->long_size = ltt_get_uint32(LTT_GET_BO(tf), |
988 | &fac_state_dump_load_data->long_size); |
eed2ef37 |
989 | fac->size_t_size = ltt_get_uint32(LTT_GET_BO(tf), |
d2083cab |
990 | &fac_state_dump_load_data->size_t_size); |
3aee1200 |
991 | fac->alignment = ltt_get_uint32(LTT_GET_BO(tf), |
d2083cab |
992 | &fac_state_dump_load_data->alignment); |
3aee1200 |
993 | if(ltt_get_facility_description(fac, tf->trace, tf)) |
cb03932a |
994 | continue; /* error opening description */ |
3aee1200 |
995 | |
996 | fac->trace = tf->trace; |
997 | |
cb03932a |
998 | /* Preset the field offsets */ |
999 | for(i=0; i<fac->events->len; i++){ |
1000 | et = &g_array_index(fac->events, LttEventType, i); |
1001 | set_fields_offsets(tf, et); |
1002 | } |
1003 | |
3aee1200 |
1004 | fac->exists = 1; |
1005 | |
1006 | fac_ids = g_datalist_id_get_data(&tf->trace->facilities_by_name, |
1007 | fac->name); |
1008 | if(fac_ids == NULL) { |
1009 | fac_ids = g_array_sized_new (FALSE, TRUE, sizeof(guint), 1); |
1010 | g_datalist_id_set_data_full(&tf->trace->facilities_by_name, |
1011 | fac->name, |
1012 | fac_ids, ltt_fac_ids_destroy); |
1013 | } |
1014 | g_array_append_val(fac_ids, fac->id); |
1015 | |
1016 | break; |
1017 | case LTT_EVENT_HEARTBEAT: |
1018 | break; |
1019 | default: |
1020 | g_warning("Error in processing facility file %s, " |
1021 | "unknown event id %hhu in core facility.", |
1022 | g_quark_to_string(tf->name), |
1023 | tf->event.event_id); |
1024 | err = EPERM; |
1025 | goto event_id_error; |
1026 | } |
1027 | } |
963b5f2d |
1028 | } |
3aee1200 |
1029 | return 0; |
963b5f2d |
1030 | |
3aee1200 |
1031 | /* Error handling */ |
3aee1200 |
1032 | event_id_error: |
1033 | fac_id_error: |
1034 | update_error: |
1035 | seek_error: |
d2083cab |
1036 | g_warning("An error occured in facility tracefile parsing"); |
3aee1200 |
1037 | return err; |
6cd62ccf |
1038 | } |
1039 | |
963b5f2d |
1040 | |
3aee1200 |
1041 | LttTrace *ltt_trace_open(const gchar *pathname) |
1042 | { |
1043 | gchar abs_path[PATH_MAX]; |
1044 | LttTrace * t; |
1045 | LttTracefile *tf; |
1046 | GArray *group; |
b56dcdf2 |
1047 | int i, ret; |
16fcbb80 |
1048 | struct ltt_block_start_header *header; |
b56dcdf2 |
1049 | DIR *dir; |
1050 | struct dirent *entry; |
1051 | guint control_found = 0; |
1052 | guint eventdefs_found = 0; |
1053 | struct stat stat_buf; |
1054 | gchar path[PATH_MAX]; |
3aee1200 |
1055 | |
1056 | t = g_new(LttTrace, 1); |
1057 | if(!t) goto alloc_error; |
1058 | |
1059 | get_absolute_pathname(pathname, abs_path); |
1060 | t->pathname = g_quark_from_string(abs_path); |
1061 | |
3aee1200 |
1062 | g_datalist_init(&t->tracefiles); |
b56dcdf2 |
1063 | |
1064 | /* Test to see if it looks like a trace */ |
1065 | dir = opendir(abs_path); |
1066 | if(dir == NULL) { |
1067 | perror(abs_path); |
1068 | goto open_error; |
1069 | } |
1070 | while((entry = readdir(dir)) != NULL) { |
1071 | strcpy(path, abs_path); |
1072 | strcat(path, "/"); |
1073 | strcat(path, entry->d_name); |
1074 | ret = stat(path, &stat_buf); |
1075 | if(ret == -1) { |
1076 | perror(path); |
1077 | continue; |
1078 | } |
1079 | if(S_ISDIR(stat_buf.st_mode)) { |
1080 | if(strcmp(entry->d_name, "control") == 0) { |
1081 | control_found = 1; |
1082 | } |
1083 | if(strcmp(entry->d_name, "eventdefs") == 0) { |
1084 | eventdefs_found = 1; |
1085 | } |
1086 | } |
1087 | } |
1088 | closedir(dir); |
1089 | |
1090 | if(!control_found || !eventdefs_found) goto find_error; |
1091 | |
1092 | /* Open all the tracefiles */ |
e45551ac |
1093 | if(open_tracefiles(t, abs_path, "")) { |
1094 | g_warning("Error opening tracefile %s", abs_path); |
b56dcdf2 |
1095 | goto find_error; |
e45551ac |
1096 | } |
3aee1200 |
1097 | |
1098 | /* Prepare the facilities containers : array and mapping */ |
1099 | /* Array is zeroed : the "exists" field is set to false by default */ |
1100 | t->facilities_by_num = g_array_sized_new (FALSE, |
1101 | TRUE, sizeof(LttFacility), |
1102 | NUM_FACILITIES); |
1103 | t->facilities_by_num = g_array_set_size(t->facilities_by_num, NUM_FACILITIES); |
1104 | |
1105 | g_datalist_init(&t->facilities_by_name); |
1106 | |
1107 | /* Parse each trace control/facilitiesN files : get runtime fac. info */ |
1108 | group = g_datalist_id_get_data(&t->tracefiles, LTT_TRACEFILE_NAME_FACILITIES); |
1109 | if(group == NULL) { |
1110 | g_error("Trace %s has no facility tracefile", abs_path); |
3865ea09 |
1111 | g_assert(0); |
3aee1200 |
1112 | goto facilities_error; |
1113 | } |
1114 | |
16fcbb80 |
1115 | /* Get the trace information for the control/facility 0 tracefile */ |
1116 | g_assert(group->len > 0); |
1117 | tf = &g_array_index (group, LttTracefile, 0); |
1118 | header = (struct ltt_block_start_header*)tf->buffer.head; |
51551c6f |
1119 | g_assert(parse_trace_header(header->trace, |
1120 | tf, t) == 0); |
b56dcdf2 |
1121 | |
1122 | t->num_cpu = group->len; |
16fcbb80 |
1123 | |
3aee1200 |
1124 | for(i=0; i<group->len; i++) { |
1125 | tf = &g_array_index (group, LttTracefile, i); |
1126 | if(ltt_process_facility_tracefile(tf)) |
1127 | goto facilities_error; |
1128 | } |
3aee1200 |
1129 | |
1130 | return t; |
1131 | |
1132 | /* Error handling */ |
1133 | facilities_error: |
1134 | g_datalist_clear(&t->facilities_by_name); |
1135 | g_array_free(t->facilities_by_num, TRUE); |
b56dcdf2 |
1136 | find_error: |
3aee1200 |
1137 | g_datalist_clear(&t->tracefiles); |
b56dcdf2 |
1138 | open_error: |
3aee1200 |
1139 | g_free(t); |
1140 | alloc_error: |
1141 | return NULL; |
1142 | |
1143 | } |
6cd62ccf |
1144 | |
826f1ab2 |
1145 | GQuark ltt_trace_name(const LttTrace *t) |
6cd62ccf |
1146 | { |
3aee1200 |
1147 | return t->pathname; |
6cd62ccf |
1148 | } |
1149 | |
6cd62ccf |
1150 | |
3aee1200 |
1151 | /****************************************************************************** |
1152 | * When we copy a trace, we want all the opening actions to happen again : |
1153 | * the trace will be reopened and totally independant from the original. |
1154 | * That's why we call ltt_trace_open. |
1155 | *****************************************************************************/ |
1156 | LttTrace *ltt_trace_copy(LttTrace *self) |
963b5f2d |
1157 | { |
3aee1200 |
1158 | return ltt_trace_open(g_quark_to_string(self->pathname)); |
963b5f2d |
1159 | } |
1160 | |
3aee1200 |
1161 | void ltt_trace_close(LttTrace *t) |
6cd62ccf |
1162 | { |
cb03932a |
1163 | guint i; |
1164 | LttFacility *fac; |
1165 | |
1166 | for(i=0; i<t->facilities_by_num->len; i++) { |
1167 | fac = &g_array_index (t->facilities_by_num, LttFacility, i); |
1168 | if(fac->exists) |
1169 | ltt_facility_close(fac); |
1170 | } |
1171 | |
3aee1200 |
1172 | g_datalist_clear(&t->facilities_by_name); |
1173 | g_array_free(t->facilities_by_num, TRUE); |
1174 | g_datalist_clear(&t->tracefiles); |
1175 | g_free(t); |
6cd62ccf |
1176 | } |
1177 | |
3aee1200 |
1178 | |
6cd62ccf |
1179 | /***************************************************************************** |
3aee1200 |
1180 | *Get the system description of the trace |
6cd62ccf |
1181 | ****************************************************************************/ |
1182 | |
3aee1200 |
1183 | LttFacility *ltt_trace_facility_by_id(LttTrace *t, guint8 id) |
6cd62ccf |
1184 | { |
3aee1200 |
1185 | g_assert(id < t->facilities_by_num->len); |
1186 | return &g_array_index(t->facilities_by_num, LttFacility, id); |
1187 | } |
1188 | |
1189 | /* ltt_trace_facility_get_by_name |
1190 | * |
1191 | * Returns the GArray of facility indexes. All the fac_ids that matches the |
1192 | * requested facility name. |
1193 | * |
1194 | * If name is not found, returns NULL. |
1195 | */ |
1196 | GArray *ltt_trace_facility_get_by_name(LttTrace *t, GQuark name) |
1197 | { |
1198 | return g_datalist_id_get_data(&t->facilities_by_name, name); |
6cd62ccf |
1199 | } |
1200 | |
1201 | /***************************************************************************** |
963b5f2d |
1202 | * Functions to discover all the event types in the trace |
6cd62ccf |
1203 | ****************************************************************************/ |
1204 | |
3aee1200 |
1205 | #if 0 |
963b5f2d |
1206 | unsigned ltt_trace_eventtype_number(LttTrace *t) |
6cd62ccf |
1207 | { |
8d1e6362 |
1208 | unsigned int i; |
963b5f2d |
1209 | unsigned count = 0; |
dc1cad90 |
1210 | unsigned int num = t->facility_number; |
963b5f2d |
1211 | LttFacility * f; |
dc1cad90 |
1212 | |
1213 | for(i=0;i<num;i++){ |
963b5f2d |
1214 | f = (LttFacility*)g_ptr_array_index(t->facilities, i); |
1215 | count += f->event_number; |
1216 | } |
1217 | return count; |
6cd62ccf |
1218 | } |
3aee1200 |
1219 | #endif //0 |
6cd62ccf |
1220 | |
3aee1200 |
1221 | #if 0 |
1222 | //use an iteration on all the trace facilities, and inside iteration on all the |
1223 | //event types in each facilities instead. |
963b5f2d |
1224 | LttEventType *ltt_trace_eventtype_get(LttTrace *t, unsigned evId) |
6cd62ccf |
1225 | { |
6e8c19d4 |
1226 | LttEventType *event_type; |
1227 | |
963b5f2d |
1228 | LttFacility * f; |
1229 | f = ltt_trace_facility_by_id(t,evId); |
6e8c19d4 |
1230 | |
1231 | if(unlikely(!f)) event_type = NULL; |
1232 | else event_type = f->events[evId - f->base_id]; |
1233 | |
1234 | return event_type; |
6cd62ccf |
1235 | } |
3aee1200 |
1236 | #endif //0 |
6cd62ccf |
1237 | |
3aee1200 |
1238 | #if 0 |
6cd62ccf |
1239 | /***************************************************************************** |
3aee1200 |
1240 | * ltt_trace_find_tracefile |
1241 | * |
1242 | * Find a tracefile by name and index in the group. |
1243 | * |
1244 | * Returns a pointer to the tracefiles, else NULL. |
6cd62ccf |
1245 | ****************************************************************************/ |
6cd62ccf |
1246 | |
3aee1200 |
1247 | LttTracefile *ltt_trace_find_tracefile(LttTrace *t, const gchar *name) |
6cd62ccf |
1248 | { |
6cd62ccf |
1249 | } |
3aee1200 |
1250 | #endif //0 |
6cd62ccf |
1251 | |
1252 | /***************************************************************************** |
3aee1200 |
1253 | * Get the start time and end time of the trace |
6cd62ccf |
1254 | ****************************************************************************/ |
1255 | |
3aee1200 |
1256 | static void ltt_tracefile_time_span_get(LttTracefile *tf, |
1257 | LttTime *start, LttTime *end) |
6cd62ccf |
1258 | { |
3aee1200 |
1259 | int err; |
6cd62ccf |
1260 | |
3aee1200 |
1261 | err = map_block(tf, 0); |
1262 | if(unlikely(err)) { |
1263 | g_error("Can not map block"); |
1264 | *start = ltt_time_infinite; |
1265 | } else |
1266 | *start = tf->buffer.begin.timestamp; |
1267 | |
1268 | err = map_block(tf, tf->num_blocks - 1); /* Last block */ |
1269 | if(unlikely(err)) { |
1270 | g_error("Can not map block"); |
1271 | *end = ltt_time_zero; |
1272 | } else |
1273 | *end = tf->buffer.end.timestamp; |
6cd62ccf |
1274 | } |
1275 | |
3aee1200 |
1276 | struct tracefile_time_span_get_args { |
1277 | LttTrace *t; |
1278 | LttTime *start; |
1279 | LttTime *end; |
1280 | }; |
963b5f2d |
1281 | |
3aee1200 |
1282 | static void group_time_span_get(GQuark name, gpointer data, gpointer user_data) |
963b5f2d |
1283 | { |
3aee1200 |
1284 | struct tracefile_time_span_get_args *args = |
1285 | (struct tracefile_time_span_get_args*)user_data; |
1286 | |
1287 | GArray *group = (GArray *)data; |
1288 | int i; |
1289 | LttTracefile *tf; |
1290 | LttTime tmp_start; |
1291 | LttTime tmp_end; |
1292 | |
1293 | for(i=0; i<group->len; i++) { |
1294 | tf = &g_array_index (group, LttTracefile, i); |
1295 | if(tf->cpu_online) { |
1296 | ltt_tracefile_time_span_get(tf, &tmp_start, &tmp_end); |
1297 | if(ltt_time_compare(*args->start, tmp_start)>0) *args->start = tmp_start; |
1298 | if(ltt_time_compare(*args->end, tmp_end)<0) *args->end = tmp_end; |
1299 | } |
1300 | } |
6cd62ccf |
1301 | } |
1302 | |
487ad181 |
1303 | void ltt_trace_time_span_get(LttTrace *t, LttTime *start, LttTime *end) |
1304 | { |
3aee1200 |
1305 | LttTime min_start = ltt_time_infinite; |
1306 | LttTime max_end = ltt_time_zero; |
1307 | struct tracefile_time_span_get_args args = { t, &min_start, &max_end }; |
487ad181 |
1308 | |
3aee1200 |
1309 | g_datalist_foreach(&t->tracefiles, &group_time_span_get, &args); |
1310 | |
1311 | if(start != NULL) *start = min_start; |
1312 | if(end != NULL) *end = max_end; |
1313 | |
487ad181 |
1314 | } |
1315 | |
1316 | |
6cd62ccf |
1317 | /***************************************************************************** |
963b5f2d |
1318 | *Get the name of a tracefile |
6cd62ccf |
1319 | ****************************************************************************/ |
1320 | |
348c6ba8 |
1321 | GQuark ltt_tracefile_name(const LttTracefile *tf) |
6cd62ccf |
1322 | { |
963b5f2d |
1323 | return tf->name; |
6cd62ccf |
1324 | } |
1325 | |
348c6ba8 |
1326 | GQuark ltt_tracefile_long_name(const LttTracefile *tf) |
1327 | { |
1328 | return tf->long_name; |
1329 | } |
1330 | |
1331 | |
d3d34f49 |
1332 | |
1333 | guint ltt_tracefile_num(LttTracefile *tf) |
1334 | { |
1335 | return tf->cpu_num; |
1336 | } |
1337 | |
80da81ad |
1338 | /***************************************************************************** |
1339 | * Get the number of blocks in the tracefile |
1340 | ****************************************************************************/ |
1341 | |
3aee1200 |
1342 | guint ltt_tracefile_block_number(LttTracefile *tf) |
80da81ad |
1343 | { |
3aee1200 |
1344 | return tf->num_blocks; |
80da81ad |
1345 | } |
1346 | |
caf7a67a |
1347 | |
3aee1200 |
1348 | /* Seek to the first event in a tracefile that has a time equal or greater than |
1349 | * the time passed in parameter. |
1350 | * |
1351 | * If the time parameter is outside the tracefile time span, seek to the first |
27304273 |
1352 | * event or if after, return ERANGE. |
3aee1200 |
1353 | * |
1354 | * If the time parameter is before the first event, we have to seek specially to |
1355 | * there. |
1356 | * |
27304273 |
1357 | * If the time is after the end of the trace, return ERANGE. |
3aee1200 |
1358 | * |
1359 | * Do a binary search to find the right block, then a sequential search in the |
1360 | * block to find the event. |
1361 | * |
1362 | * In the special case where the time requested fits inside a block that has no |
1363 | * event corresponding to the requested time, the first event of the next block |
1364 | * will be seeked. |
1365 | * |
1366 | * IMPORTANT NOTE : // FIXME everywhere... |
1367 | * |
1368 | * You MUST NOT do a ltt_tracefile_read right after a ltt_tracefile_seek_time : |
1369 | * you will jump over an event if you do. |
1370 | * |
1371 | * Return value : 0 : no error, the tf->event can be used |
27304273 |
1372 | * ERANGE : time if after the last event of the trace |
3aee1200 |
1373 | * otherwise : this is an error. |
1374 | * |
1375 | * */ |
1376 | |
1377 | int ltt_tracefile_seek_time(LttTracefile *tf, LttTime time) |
1378 | { |
1379 | int ret = 0; |
1380 | int err; |
1381 | unsigned int block_num, high, low; |
1382 | |
1383 | /* seek at the beginning of trace */ |
1384 | err = map_block(tf, 0); /* First block */ |
1385 | if(unlikely(err)) { |
1386 | g_error("Can not map block"); |
1387 | goto fail; |
caf7a67a |
1388 | } |
1389 | |
3aee1200 |
1390 | /* If the time is lower or equal the beginning of the trace, |
1391 | * go to the first event. */ |
1392 | if(ltt_time_compare(time, tf->buffer.begin.timestamp) <= 0) { |
1393 | ret = ltt_tracefile_read(tf); |
27304273 |
1394 | if(ret == ERANGE) goto range; |
1395 | else if (ret) goto fail; |
3aee1200 |
1396 | goto found; /* There is either no event in the trace or the event points |
1397 | to the first event in the trace */ |
1398 | } |
caf7a67a |
1399 | |
3aee1200 |
1400 | err = map_block(tf, tf->num_blocks - 1); /* Last block */ |
1401 | if(unlikely(err)) { |
1402 | g_error("Can not map block"); |
1403 | goto fail; |
caf7a67a |
1404 | } |
6cd62ccf |
1405 | |
27304273 |
1406 | /* If the time is after the end of the trace, return ERANGE. */ |
1407 | if(ltt_time_compare(time, tf->buffer.end.timestamp) > 0) { |
1408 | goto range; |
3aee1200 |
1409 | } |
62e55dd6 |
1410 | |
3aee1200 |
1411 | /* Binary search the block */ |
1412 | high = tf->num_blocks - 1; |
1413 | low = 0; |
1414 | |
1415 | while(1) { |
1416 | block_num = ((high-low) / 2) + low; |
1417 | |
1418 | err = map_block(tf, block_num); |
1419 | if(unlikely(err)) { |
1420 | g_error("Can not map block"); |
1421 | goto fail; |
db55eaae |
1422 | } |
3aee1200 |
1423 | if(high == low) { |
1424 | /* We cannot divide anymore : this is what would happen if the time |
1425 | * requested was exactly between two consecutive buffers'end and start |
1426 | * timestamps. This is also what would happend if we didn't deal with out |
1427 | * of span cases prior in this function. */ |
1428 | /* The event is right in the buffer! |
1429 | * (or in the next buffer first event) */ |
1430 | while(1) { |
1431 | ret = ltt_tracefile_read(tf); |
27304273 |
1432 | if(ret == ERANGE) goto range; /* ERANGE or EPERM */ |
3aee1200 |
1433 | else if(ret) goto fail; |
1434 | |
d9e13a0f |
1435 | if(ltt_time_compare(time, tf->event.event_time) <= 0) |
e45551ac |
1436 | goto found; |
3aee1200 |
1437 | } |
1438 | |
27304273 |
1439 | } else if(ltt_time_compare(time, tf->buffer.begin.timestamp) < 0) { |
3aee1200 |
1440 | /* go to lower part */ |
b1369bef |
1441 | high = block_num - 1; |
3aee1200 |
1442 | } else if(ltt_time_compare(time, tf->buffer.end.timestamp) > 0) { |
1443 | /* go to higher part */ |
b1369bef |
1444 | low = block_num + 1; |
3aee1200 |
1445 | } else {/* The event is right in the buffer! |
1446 | (or in the next buffer first event) */ |
1447 | while(1) { |
27304273 |
1448 | ret = ltt_tracefile_read(tf); |
1449 | if(ret == ERANGE) goto range; /* ERANGE or EPERM */ |
3aee1200 |
1450 | else if(ret) goto fail; |
1451 | |
d9e13a0f |
1452 | if(ltt_time_compare(time, tf->event.event_time) <= 0) |
3aee1200 |
1453 | break; |
6cd62ccf |
1454 | } |
3aee1200 |
1455 | goto found; |
6cd62ccf |
1456 | } |
6cd62ccf |
1457 | } |
3aee1200 |
1458 | |
1459 | found: |
1460 | return 0; |
27304273 |
1461 | range: |
1462 | return ERANGE; |
3aee1200 |
1463 | |
1464 | /* Error handling */ |
1465 | fail: |
1466 | g_error("ltt_tracefile_seek_time failed on tracefile %s", |
1467 | g_quark_to_string(tf->name)); |
1468 | return EPERM; |
6cd62ccf |
1469 | } |
1470 | |
80da81ad |
1471 | |
3aee1200 |
1472 | int ltt_tracefile_seek_position(LttTracefile *tf, const LttEventPosition *ep) { |
80da81ad |
1473 | |
3aee1200 |
1474 | int err; |
1475 | |
1476 | if(ep->tracefile != tf) { |
1477 | goto fail; |
80da81ad |
1478 | } |
1479 | |
3aee1200 |
1480 | err = map_block(tf, ep->block); |
1481 | if(unlikely(err)) { |
1482 | g_error("Can not map block"); |
1483 | goto fail; |
1484 | } |
1485 | |
1486 | tf->event.offset = ep->offset; |
18206708 |
1487 | |
3aee1200 |
1488 | err = ltt_tracefile_read_update_event(tf); |
1489 | if(err) goto fail; |
1490 | err = ltt_tracefile_read_op(tf); |
1491 | if(err) goto fail; |
80da81ad |
1492 | |
a0c1f622 |
1493 | return 0; |
3aee1200 |
1494 | |
1495 | fail: |
1496 | g_error("ltt_tracefile_seek_time failed on tracefile %s", |
1497 | g_quark_to_string(tf->name)); |
a0c1f622 |
1498 | return 1; |
3aee1200 |
1499 | } |
1500 | |
1501 | /* Calculate the real event time based on the buffer boundaries */ |
1502 | LttTime ltt_interpolate_time(LttTracefile *tf, LttEvent *event) |
1503 | { |
1504 | LttTime time; |
1505 | |
1506 | g_assert(tf->trace->has_tsc); |
1507 | |
1508 | time = ltt_time_from_uint64( |
50a17d39 |
1509 | (guint64)(tf->buffer.tsc - tf->buffer.begin.cycle_count) * |
1510 | tf->buffer.nsecs_per_cycle); |
3aee1200 |
1511 | time = ltt_time_add(tf->buffer.begin.timestamp, time); |
1512 | |
1513 | return time; |
80da81ad |
1514 | } |
1515 | |
eed2ef37 |
1516 | |
1517 | /* Get the current event of the tracefile : valid until the next read */ |
1518 | LttEvent *ltt_tracefile_get_event(LttTracefile *tf) |
1519 | { |
1520 | return &tf->event; |
1521 | } |
1522 | |
1523 | |
1524 | |
6cd62ccf |
1525 | /***************************************************************************** |
1526 | *Function name |
3aee1200 |
1527 | * ltt_tracefile_read : Read the next event in the tracefile |
6cd62ccf |
1528 | *Input params |
1529 | * t : tracefile |
1530 | *Return value |
3aee1200 |
1531 | * |
1532 | * Returns 0 if an event can be used in tf->event. |
d822520b |
1533 | * Returns ERANGE on end of trace. The event in tf->event still can be used |
1534 | * (if the last block was not empty). |
3aee1200 |
1535 | * Returns EPERM on error. |
1536 | * |
1537 | * This function does make the tracefile event structure point to the event |
1538 | * currently pointed to by the tf->event. |
1539 | * |
1540 | * Note : you must call a ltt_tracefile_seek to the beginning of the trace to |
1541 | * reinitialize it after an error if you want results to be coherent. |
1542 | * It would be the case if a end of trace last buffer has no event : the end |
1543 | * of trace wouldn't be returned, but an error. |
1544 | * We make the assumption there is at least one event per buffer. |
6cd62ccf |
1545 | ****************************************************************************/ |
1546 | |
3aee1200 |
1547 | int ltt_tracefile_read(LttTracefile *tf) |
6cd62ccf |
1548 | { |
963b5f2d |
1549 | int err; |
6cd62ccf |
1550 | |
3aee1200 |
1551 | err = ltt_tracefile_read_seek(tf); |
1552 | if(err) return err; |
1553 | err = ltt_tracefile_read_update_event(tf); |
1554 | if(err) return err; |
1555 | err = ltt_tracefile_read_op(tf); |
1556 | if(err) return err; |
1557 | |
1558 | return 0; |
1559 | } |
1560 | |
1561 | int ltt_tracefile_read_seek(LttTracefile *tf) |
1562 | { |
1563 | int err; |
1564 | |
1565 | /* Get next buffer until we finally have an event, or end of trace */ |
1566 | while(1) { |
1567 | err = ltt_seek_next_event(tf); |
1568 | if(unlikely(err == ENOPROTOOPT)) { |
1569 | return EPERM; |
bdc36259 |
1570 | } |
bdc36259 |
1571 | |
3aee1200 |
1572 | /* Are we at the end of the buffer ? */ |
1573 | if(err == ERANGE) { |
1574 | if(unlikely(tf->buffer.index == tf->num_blocks-1)){ /* end of trace ? */ |
1575 | return ERANGE; |
1576 | } else { |
1577 | /* get next block */ |
1578 | err = map_block(tf, tf->buffer.index + 1); |
1579 | if(unlikely(err)) { |
1580 | g_error("Can not map block"); |
1581 | return EPERM; |
1582 | } |
1583 | } |
1584 | } else break; /* We found an event ! */ |
1585 | } |
2dee981d |
1586 | |
3aee1200 |
1587 | return 0; |
1588 | } |
18206708 |
1589 | |
1590 | |
3aee1200 |
1591 | /* do specific operation on events */ |
1592 | int ltt_tracefile_read_op(LttTracefile *tf) |
1593 | { |
3aee1200 |
1594 | LttEvent *event; |
1595 | |
1596 | event = &tf->event; |
18206708 |
1597 | |
3aee1200 |
1598 | /* do event specific operation */ |
40331ba8 |
1599 | |
3aee1200 |
1600 | /* do something if its an heartbeat event : increment the heartbeat count */ |
1601 | //if(event->facility_id == LTT_FACILITY_CORE) |
1602 | // if(event->event_id == LTT_EVENT_HEARTBEAT) |
1603 | // tf->cur_heart_beat_number++; |
1604 | |
1605 | return 0; |
6cd62ccf |
1606 | } |
1607 | |
6cd62ccf |
1608 | |
3aee1200 |
1609 | /* same as ltt_tracefile_read, but does not seek to the next event nor call |
1610 | * event specific operation. */ |
1611 | int ltt_tracefile_read_update_event(LttTracefile *tf) |
6cd62ccf |
1612 | { |
3aee1200 |
1613 | void * pos; |
1614 | LttEvent *event; |
1615 | |
1616 | event = &tf->event; |
eed2ef37 |
1617 | pos = tf->buffer.head + event->offset; |
3aee1200 |
1618 | |
1619 | /* Read event header */ |
1620 | |
1621 | //TODO align |
1622 | |
1623 | if(tf->trace->has_tsc) { |
16fcbb80 |
1624 | if(tf->trace->has_heartbeat) { |
1625 | event->time.timestamp = ltt_get_uint32(LTT_GET_BO(tf), |
1626 | pos); |
1627 | /* 32 bits -> 64 bits tsc */ |
1628 | /* note : still works for seek and non seek cases. */ |
1629 | if(event->time.timestamp < (0xFFFFFFFFULL&tf->buffer.tsc)) { |
1630 | tf->buffer.tsc = ((tf->buffer.tsc&0xFFFFFFFF00000000ULL) |
1631 | + 0x100000000ULL) |
1632 | | (guint64)event->time.timestamp; |
1633 | event->tsc = tf->buffer.tsc; |
1634 | } else { |
1635 | /* no overflow */ |
1636 | tf->buffer.tsc = (tf->buffer.tsc&0xFFFFFFFF00000000ULL) |
1637 | | (guint64)event->time.timestamp; |
1638 | event->tsc = tf->buffer.tsc; |
1639 | } |
1640 | pos += sizeof(guint32); |
3aee1200 |
1641 | } else { |
16fcbb80 |
1642 | event->tsc = ltt_get_uint64(LTT_GET_BO(tf), pos); |
1643 | tf->buffer.tsc = event->tsc; |
1644 | pos += sizeof(guint64); |
3aee1200 |
1645 | } |
16fcbb80 |
1646 | |
3aee1200 |
1647 | event->event_time = ltt_interpolate_time(tf, event); |
3aee1200 |
1648 | } else { |
1649 | event->time.delta.tv_sec = 0; |
1650 | event->time.delta.tv_nsec = ltt_get_uint32(LTT_GET_BO(tf), |
1651 | pos) * NSEC_PER_USEC; |
1652 | tf->buffer.tsc = 0; |
1653 | event->tsc = tf->buffer.tsc; |
1654 | |
1655 | event->event_time = ltt_time_add(tf->buffer.begin.timestamp, |
1656 | event->time.delta); |
1657 | pos += sizeof(guint32); |
1658 | } |
1659 | |
eed2ef37 |
1660 | event->facility_id = *(guint8*)pos; |
3aee1200 |
1661 | pos += sizeof(guint8); |
1662 | |
eed2ef37 |
1663 | event->event_id = *(guint8*)pos; |
3aee1200 |
1664 | pos += sizeof(guint8); |
1665 | |
b77d1b57 |
1666 | event->event_size = ltt_get_uint16(LTT_GET_BO(tf), pos); |
1667 | pos += sizeof(guint16); |
1668 | |
3aee1200 |
1669 | event->data = pos; |
1670 | |
77175651 |
1671 | /* get the data size and update the event fields with the current |
1672 | * information */ |
eed2ef37 |
1673 | ltt_update_event_size(tf); |
77175651 |
1674 | |
3aee1200 |
1675 | return 0; |
6cd62ccf |
1676 | } |
1677 | |
507915ee |
1678 | |
6cd62ccf |
1679 | /**************************************************************************** |
1680 | *Function name |
3aee1200 |
1681 | * map_block : map a block from the file |
6cd62ccf |
1682 | *Input Params |
1683 | * lttdes : ltt trace file |
1684 | * whichBlock : the block which will be read |
1685 | *return value |
1686 | * 0 : success |
1687 | * EINVAL : lseek fail |
1688 | * EIO : can not read from the file |
1689 | ****************************************************************************/ |
1690 | |
3aee1200 |
1691 | static gint map_block(LttTracefile * tf, guint block_num) |
6cd62ccf |
1692 | { |
b77d1b57 |
1693 | int page_size = getpagesize(); |
3aee1200 |
1694 | struct ltt_block_start_header *header; |
1695 | |
1696 | g_assert(block_num < tf->num_blocks); |
6cd62ccf |
1697 | |
f628823c |
1698 | if(tf->buffer.head != NULL) { |
1699 | if(munmap(tf->buffer.head, PAGE_ALIGN(tf->buf_size))) { |
1700 | g_warning("unmap size : %u\n", |
1701 | PAGE_ALIGN(tf->buf_size)); |
1702 | perror("munmap error"); |
1703 | g_assert(0); |
1704 | } |
1705 | } |
1706 | |
ac849774 |
1707 | |
3aee1200 |
1708 | /* Multiple of pages aligned head */ |
b77d1b57 |
1709 | tf->buffer.head = mmap(0, |
f628823c |
1710 | PAGE_ALIGN(tf->buf_size), |
b77d1b57 |
1711 | PROT_READ, MAP_PRIVATE, tf->fd, |
f628823c |
1712 | PAGE_ALIGN((off_t)tf->buf_size * (off_t)block_num)); |
3aee1200 |
1713 | |
3865ea09 |
1714 | if(tf->buffer.head == MAP_FAILED) { |
3aee1200 |
1715 | perror("Error in allocating memory for buffer of tracefile"); |
3865ea09 |
1716 | g_assert(0); |
3aee1200 |
1717 | goto map_error; |
6cd62ccf |
1718 | } |
3865ea09 |
1719 | g_assert( ( (guint)tf->buffer.head&(8-1) ) == 0); // make sure it's aligned. |
3aee1200 |
1720 | |
6cd62ccf |
1721 | |
3aee1200 |
1722 | tf->buffer.index = block_num; |
1723 | |
1724 | header = (struct ltt_block_start_header*)tf->buffer.head; |
1725 | |
1726 | tf->buffer.begin.timestamp = ltt_get_time(LTT_GET_BO(tf), |
1727 | &header->begin.timestamp); |
1728 | tf->buffer.begin.timestamp.tv_nsec *= NSEC_PER_USEC; |
348c6ba8 |
1729 | //g_debug("block %u begin : %lu.%lu", block_num, |
1730 | // tf->buffer.begin.timestamp.tv_sec, tf->buffer.begin.timestamp.tv_nsec); |
3aee1200 |
1731 | tf->buffer.begin.cycle_count = ltt_get_uint64(LTT_GET_BO(tf), |
1732 | &header->begin.cycle_count); |
1733 | tf->buffer.end.timestamp = ltt_get_time(LTT_GET_BO(tf), |
1734 | &header->end.timestamp); |
1735 | tf->buffer.end.timestamp.tv_nsec *= NSEC_PER_USEC; |
348c6ba8 |
1736 | //g_debug("block %u end : %lu.%lu", block_num, |
1737 | // tf->buffer.end.timestamp.tv_sec, tf->buffer.end.timestamp.tv_nsec); |
3aee1200 |
1738 | tf->buffer.end.cycle_count = ltt_get_uint64(LTT_GET_BO(tf), |
1739 | &header->end.cycle_count); |
1740 | tf->buffer.lost_size = ltt_get_uint32(LTT_GET_BO(tf), |
1741 | &header->lost_size); |
6cd62ccf |
1742 | |
3aee1200 |
1743 | tf->buffer.tsc = tf->buffer.begin.cycle_count; |
1744 | tf->event.tsc = tf->buffer.tsc; |
1745 | |
1746 | /* FIXME |
1747 | * eventually support variable buffer size : will need a partial pre-read of |
1748 | * the headers to create an index when we open the trace... eventually. */ |
f628823c |
1749 | g_assert(tf->buf_size == ltt_get_uint32(LTT_GET_BO(tf), |
3aee1200 |
1750 | &header->buf_size)); |
507915ee |
1751 | |
3aee1200 |
1752 | /* Now that the buffer is mapped, calculate the time interpolation for the |
1753 | * block. */ |
1754 | |
1755 | tf->buffer.nsecs_per_cycle = calc_nsecs_per_cycle(tf); |
1756 | |
1757 | /* Make the current event point to the beginning of the buffer : |
1758 | * it means that the event read must get the first event. */ |
1759 | tf->event.tracefile = tf; |
1760 | tf->event.block = block_num; |
eed2ef37 |
1761 | tf->event.offset = 0; |
3aee1200 |
1762 | |
1763 | return 0; |
6cd62ccf |
1764 | |
3aee1200 |
1765 | map_error: |
1766 | return -errno; |
40331ba8 |
1767 | |
6cd62ccf |
1768 | } |
1769 | |
77175651 |
1770 | /* It will update the fields offsets too */ |
1771 | void ltt_update_event_size(LttTracefile *tf) |
6cd62ccf |
1772 | { |
3aee1200 |
1773 | ssize_t size = 0; |
1774 | |
1775 | /* Specific handling of core events : necessary to read the facility control |
1776 | * tracefile. */ |
77175651 |
1777 | LttFacility *f = ltt_trace_get_facility_by_num(tf->trace, |
1778 | tf->event.facility_id); |
6cd62ccf |
1779 | |
3865ea09 |
1780 | if(likely(tf->event.facility_id == LTT_FACILITY_CORE)) { |
1781 | switch((enum ltt_core_events)tf->event.event_id) { |
1782 | case LTT_EVENT_FACILITY_LOAD: |
b77d1b57 |
1783 | size = strlen((char*)tf->event.data) + 1; |
348c6ba8 |
1784 | //g_debug("Update Event facility load of facility %s", (char*)tf->event.data); |
c4afd5d8 |
1785 | size += sizeof(struct LttFacilityLoad); |
3865ea09 |
1786 | break; |
1787 | case LTT_EVENT_FACILITY_UNLOAD: |
348c6ba8 |
1788 | //g_debug("Update Event facility unload"); |
3865ea09 |
1789 | size = sizeof(struct LttFacilityUnload); |
1790 | break; |
1791 | case LTT_EVENT_STATE_DUMP_FACILITY_LOAD: |
b77d1b57 |
1792 | size = strlen((char*)tf->event.data) + 1; |
348c6ba8 |
1793 | //g_debug("Update Event facility load state dump of facility %s", |
1794 | // (char*)tf->event.data); |
c4afd5d8 |
1795 | size += sizeof(struct LttStateDumpFacilityLoad); |
3865ea09 |
1796 | break; |
1797 | case LTT_EVENT_HEARTBEAT: |
348c6ba8 |
1798 | //g_debug("Update Event heartbeat"); |
3865ea09 |
1799 | size = sizeof(TimeHeartbeat); |
1800 | break; |
1801 | default: |
1802 | g_warning("Error in getting event size : tracefile %s, " |
1803 | "unknown event id %hhu in core facility.", |
1804 | g_quark_to_string(tf->name), |
1805 | tf->event.event_id); |
1806 | goto event_id_error; |
2dee981d |
1807 | |
77175651 |
1808 | } |
3aee1200 |
1809 | } else { |
c4afd5d8 |
1810 | if(!f->exists) { |
1811 | g_error("Unknown facility %hhu (0x%hhx) in tracefile %s", |
1812 | tf->event.facility_id, |
1813 | tf->event.facility_id, |
1814 | g_quark_to_string(tf->name)); |
1815 | goto facility_error; |
1816 | } |
1817 | |
3aee1200 |
1818 | LttEventType *event_type = |
1819 | ltt_facility_eventtype_get(f, tf->event.event_id); |
c4afd5d8 |
1820 | |
1821 | if(!event_type) { |
1822 | g_error("Unknown event id %hhu in facility %s in tracefile %s", |
1823 | tf->event.event_id, |
1824 | g_quark_to_string(f->name), |
1825 | g_quark_to_string(tf->name)); |
1826 | goto event_type_error; |
1827 | } |
9eb6aa7a |
1828 | |
27304273 |
1829 | if(event_type->root_field) |
1830 | size = get_field_type_size(tf, event_type, |
1831 | 0, 0, event_type->root_field, tf->event.data); |
1832 | else |
1833 | size = 0; |
c4afd5d8 |
1834 | |
348c6ba8 |
1835 | //g_debug("Event root field : f.e %hhu.%hhu size %zd", |
1836 | // tf->event.facility_id, |
1837 | // tf->event.event_id, size); |
3aee1200 |
1838 | } |
3aee1200 |
1839 | |
77175651 |
1840 | tf->event.data_size = size; |
eed2ef37 |
1841 | |
b77d1b57 |
1842 | /* Check consistency between kernel and LTTV structure sizes */ |
1843 | g_assert(tf->event.data_size == tf->event.event_size); |
9eb6aa7a |
1844 | |
eed2ef37 |
1845 | return; |
1846 | |
c4afd5d8 |
1847 | facility_error: |
1848 | event_type_error: |
3aee1200 |
1849 | event_id_error: |
eed2ef37 |
1850 | tf->event.data_size = 0; |
6cd62ccf |
1851 | } |
1852 | |
6cd62ccf |
1853 | |
3aee1200 |
1854 | /* Take the tf current event offset and use the event facility id and event id |
1855 | * to figure out where is the next event offset. |
1856 | * |
1857 | * This is an internal function not aiming at being used elsewhere : it will |
1858 | * not jump over the current block limits. Please consider using |
1859 | * ltt_tracefile_read to do this. |
1860 | * |
1861 | * Returns 0 on success |
1862 | * ERANGE if we are at the end of the buffer. |
1863 | * ENOPROTOOPT if an error occured when getting the current event size. |
1864 | */ |
1865 | static int ltt_seek_next_event(LttTracefile *tf) |
6cd62ccf |
1866 | { |
3aee1200 |
1867 | int ret = 0; |
1868 | void *pos; |
3aee1200 |
1869 | |
1870 | /* seek over the buffer header if we are at the buffer start */ |
eed2ef37 |
1871 | if(tf->event.offset == 0) { |
51551c6f |
1872 | tf->event.offset += tf->buffer_header_size; |
b77d1b57 |
1873 | |
f628823c |
1874 | if(tf->event.offset == tf->buf_size - tf->buffer.lost_size) { |
b77d1b57 |
1875 | ret = ERANGE; |
1876 | } |
3aee1200 |
1877 | goto found; |
1878 | } |
6cd62ccf |
1879 | |
6cd62ccf |
1880 | |
3aee1200 |
1881 | pos = tf->event.data; |
1882 | |
77175651 |
1883 | if(tf->event.data_size < 0) goto error; |
3aee1200 |
1884 | |
77175651 |
1885 | pos += (size_t)tf->event.data_size; |
3aee1200 |
1886 | |
eed2ef37 |
1887 | tf->event.offset = pos - tf->buffer.head; |
cb03932a |
1888 | |
f628823c |
1889 | if(tf->event.offset == tf->buf_size - tf->buffer.lost_size) { |
cb03932a |
1890 | ret = ERANGE; |
1891 | goto found; |
1892 | } |
36d36c9f |
1893 | g_assert(tf->event.offset < tf->buf_size - tf->buffer.lost_size); |
3aee1200 |
1894 | |
1895 | found: |
1896 | return ret; |
1897 | |
1898 | error: |
1899 | g_error("Error in ltt_seek_next_event for tracefile %s", |
1900 | g_quark_to_string(tf->name)); |
1901 | return ENOPROTOOPT; |
6cd62ccf |
1902 | } |
1903 | |
18206708 |
1904 | |
6cd62ccf |
1905 | /***************************************************************************** |
1906 | *Function name |
3aee1200 |
1907 | * calc_nsecs_per_cycle : calculate nsecs per cycle for current block |
6cd62ccf |
1908 | *Input Params |
1909 | * t : tracefile |
1910 | ****************************************************************************/ |
1911 | |
3aee1200 |
1912 | static double calc_nsecs_per_cycle(LttTracefile * tf) |
6cd62ccf |
1913 | { |
963b5f2d |
1914 | LttTime lBufTotalTime; /* Total time for this buffer */ |
887208b7 |
1915 | double lBufTotalNSec; /* Total time for this buffer in nsecs */ |
8ee1c3d5 |
1916 | LttCycleCount lBufTotalCycle;/* Total cycles for this buffer */ |
6cd62ccf |
1917 | |
1918 | /* Calculate the total time for this buffer */ |
d822520b |
1919 | lBufTotalTime = ltt_time_sub(tf->buffer.end.timestamp, |
1920 | tf->buffer.begin.timestamp); |
6cd62ccf |
1921 | |
1922 | /* Calculate the total cycles for this bufffer */ |
d822520b |
1923 | lBufTotalCycle = tf->buffer.end.cycle_count; |
1924 | lBufTotalCycle -= tf->buffer.begin.cycle_count; |
6cd62ccf |
1925 | |
8ee1c3d5 |
1926 | /* Convert the total time to double */ |
887208b7 |
1927 | lBufTotalNSec = ltt_time_to_double(lBufTotalTime); |
6cd62ccf |
1928 | |
3aee1200 |
1929 | return lBufTotalNSec / (double)lBufTotalCycle; |
8ee1c3d5 |
1930 | |
3aee1200 |
1931 | } |
1932 | #if 0 |
1933 | void setFieldsOffset(LttTracefile *tf, LttEventType *evT,void *evD) |
1934 | { |
1935 | LttField * rootFld = evT->root_field; |
1936 | // rootFld->base_address = evD; |
2dee981d |
1937 | |
3aee1200 |
1938 | if(likely(rootFld)) |
1939 | rootFld->field_size = getFieldtypeSize(tf, evT->facility, |
1940 | evT, 0,0,rootFld, evD); |
6cd62ccf |
1941 | } |
3aee1200 |
1942 | #endif //0 |
6cd62ccf |
1943 | |
3aee1200 |
1944 | /***************************************************************************** |
6cd62ccf |
1945 | *Function name |
3aee1200 |
1946 | * set_fields_offsets : set the precomputable offset of the fields |
6cd62ccf |
1947 | *Input params |
3aee1200 |
1948 | * tracefile : opened trace file |
1949 | * event_type : the event type |
6cd62ccf |
1950 | ****************************************************************************/ |
1951 | |
3aee1200 |
1952 | void set_fields_offsets(LttTracefile *tf, LttEventType *event_type) |
6cd62ccf |
1953 | { |
3aee1200 |
1954 | LttField *field = event_type->root_field; |
1955 | enum field_status fixed_root = FIELD_FIXED, fixed_parent = FIELD_FIXED; |
1956 | |
1957 | if(likely(field)) |
1958 | preset_field_type_size(tf, event_type, 0, 0, |
1959 | &fixed_root, &fixed_parent, |
1960 | field); |
1961 | |
1962 | } |
e4eced0f |
1963 | |
bbf28e50 |
1964 | |
3aee1200 |
1965 | /***************************************************************************** |
1966 | *Function name |
1967 | * preset_field_type_size : set the fixed sizes of the field type |
1968 | *Input params |
1969 | * tf : tracefile |
1970 | * event_type : event type |
1971 | * offset_root : offset from the root |
1972 | * offset_parent : offset from the parent |
1973 | * fixed_root : Do we know a fixed offset to the root ? |
1974 | * fixed_parent : Do we know a fixed offset to the parent ? |
1975 | * field : field |
1976 | ****************************************************************************/ |
1977 | void preset_field_type_size(LttTracefile *tf, LttEventType *event_type, |
1978 | off_t offset_root, off_t offset_parent, |
1979 | enum field_status *fixed_root, enum field_status *fixed_parent, |
1980 | LttField *field) |
1981 | { |
1982 | enum field_status local_fixed_root, local_fixed_parent; |
1983 | guint i; |
1984 | LttType *type; |
dfb73233 |
1985 | |
3aee1200 |
1986 | g_assert(field->fixed_root == FIELD_UNKNOWN); |
1987 | g_assert(field->fixed_parent == FIELD_UNKNOWN); |
1988 | g_assert(field->fixed_size == FIELD_UNKNOWN); |
dfb73233 |
1989 | |
3aee1200 |
1990 | type = field->field_type; |
1991 | |
1992 | field->fixed_root = *fixed_root; |
1993 | if(field->fixed_root == FIELD_FIXED) |
1994 | field->offset_root = offset_root; |
1995 | else |
1996 | field->offset_root = 0; |
1997 | |
1998 | field->fixed_parent = *fixed_parent; |
1999 | if(field->fixed_parent == FIELD_FIXED) |
2000 | field->offset_parent = offset_parent; |
2001 | else |
2002 | field->offset_parent = 0; |
2003 | |
2004 | size_t current_root_offset; |
2005 | size_t current_offset; |
2006 | enum field_status current_child_status, final_child_status; |
2007 | size_t max_size; |
2008 | |
2009 | switch(type->type_class) { |
2010 | case LTT_INT: |
2011 | case LTT_UINT: |
2012 | case LTT_FLOAT: |
2013 | case LTT_ENUM: |
2014 | field->field_size = ltt_type_size(tf->trace, type); |
2015 | field->fixed_size = FIELD_FIXED; |
2016 | break; |
2017 | case LTT_POINTER: |
2018 | field->field_size = (off_t)event_type->facility->pointer_size; |
2019 | field->fixed_size = FIELD_FIXED; |
2020 | break; |
2021 | case LTT_LONG: |
2022 | case LTT_ULONG: |
cb03932a |
2023 | field->field_size = (off_t)event_type->facility->long_size; |
3aee1200 |
2024 | field->fixed_size = FIELD_FIXED; |
2025 | break; |
2026 | case LTT_SIZE_T: |
2027 | case LTT_SSIZE_T: |
2028 | case LTT_OFF_T: |
2029 | field->field_size = (off_t)event_type->facility->size_t_size; |
2030 | field->fixed_size = FIELD_FIXED; |
2031 | break; |
2032 | case LTT_SEQUENCE: |
2033 | local_fixed_root = FIELD_VARIABLE; |
2034 | local_fixed_parent = FIELD_VARIABLE; |
2035 | preset_field_type_size(tf, event_type, |
2036 | 0, 0, |
2037 | &local_fixed_root, &local_fixed_parent, |
2038 | field->child[0]); |
2039 | field->fixed_size = FIELD_VARIABLE; |
2040 | field->field_size = 0; |
27304273 |
2041 | *fixed_root = FIELD_VARIABLE; |
2042 | *fixed_parent = FIELD_VARIABLE; |
3aee1200 |
2043 | break; |
2044 | case LTT_STRING: |
2045 | field->fixed_size = FIELD_VARIABLE; |
2046 | field->field_size = 0; |
27304273 |
2047 | *fixed_root = FIELD_VARIABLE; |
2048 | *fixed_parent = FIELD_VARIABLE; |
3aee1200 |
2049 | break; |
2050 | case LTT_ARRAY: |
2051 | local_fixed_root = FIELD_VARIABLE; |
2052 | local_fixed_parent = FIELD_VARIABLE; |
2053 | preset_field_type_size(tf, event_type, |
2054 | 0, 0, |
2055 | &local_fixed_root, &local_fixed_parent, |
2056 | field->child[0]); |
2057 | field->fixed_size = field->child[0]->fixed_size; |
27304273 |
2058 | if(field->fixed_size == FIELD_FIXED) { |
3aee1200 |
2059 | field->field_size = type->element_number * field->child[0]->field_size; |
27304273 |
2060 | } else { |
3aee1200 |
2061 | field->field_size = 0; |
27304273 |
2062 | *fixed_root = FIELD_VARIABLE; |
2063 | *fixed_parent = FIELD_VARIABLE; |
2064 | } |
3aee1200 |
2065 | break; |
2066 | case LTT_STRUCT: |
2067 | current_root_offset = field->offset_root; |
2068 | current_offset = 0; |
2069 | current_child_status = FIELD_FIXED; |
2070 | for(i=0;i<type->element_number;i++) { |
2071 | preset_field_type_size(tf, event_type, |
2072 | current_root_offset, current_offset, |
2073 | fixed_root, ¤t_child_status, |
2074 | field->child[i]); |
2075 | if(current_child_status == FIELD_FIXED) { |
2076 | current_root_offset += field->child[i]->field_size; |
2077 | current_offset += field->child[i]->field_size; |
2078 | } else { |
2079 | current_root_offset = 0; |
2080 | current_offset = 0; |
2081 | } |
2082 | } |
2083 | if(current_child_status != FIELD_FIXED) { |
2084 | *fixed_parent = current_child_status; |
2085 | field->field_size = 0; |
2086 | field->fixed_size = current_child_status; |
2087 | } else { |
2088 | field->field_size = current_offset; |
2089 | field->fixed_size = FIELD_FIXED; |
2090 | } |
2091 | break; |
2092 | case LTT_UNION: |
2093 | current_root_offset = field->offset_root; |
2094 | current_offset = 0; |
2095 | max_size = 0; |
2096 | final_child_status = FIELD_FIXED; |
2097 | for(i=0;i<type->element_number;i++) { |
2098 | enum field_status current_root_child_status = FIELD_FIXED; |
2099 | enum field_status current_child_status = FIELD_FIXED; |
2100 | preset_field_type_size(tf, event_type, |
2101 | current_root_offset, current_offset, |
2102 | ¤t_root_child_status, ¤t_child_status, |
2103 | field->child[i]); |
2104 | if(current_child_status != FIELD_FIXED) |
2105 | final_child_status = current_child_status; |
2106 | else |
2107 | max_size = max(max_size, field->child[i]->field_size); |
2108 | } |
2109 | if(final_child_status != FIELD_FIXED) { |
2110 | *fixed_root = final_child_status; |
2111 | *fixed_parent = final_child_status; |
2112 | field->field_size = 0; |
2113 | field->fixed_size = current_child_status; |
2114 | } else { |
2115 | field->field_size = max_size; |
2116 | field->fixed_size = FIELD_FIXED; |
2117 | } |
2118 | break; |
dfb73233 |
2119 | } |
2120 | |
6cd62ccf |
2121 | } |
2122 | |
3aee1200 |
2123 | |
77175651 |
2124 | /***************************************************************************** |
2125 | *Function name |
2126 | * check_fields_compatibility : Check for compatibility between two fields : |
2127 | * do they use the same inner structure ? |
2128 | *Input params |
2129 | * event_type1 : event type |
2130 | * event_type2 : event type |
2131 | * field1 : field |
2132 | * field2 : field |
2133 | *Returns : 0 if identical |
2134 | * 1 if not. |
2135 | ****************************************************************************/ |
2136 | gint check_fields_compatibility(LttEventType *event_type1, |
2137 | LttEventType *event_type2, |
2138 | LttField *field1, LttField *field2) |
2139 | { |
2140 | guint different = 0; |
77175651 |
2141 | guint i; |
2142 | LttType *type1; |
2143 | LttType *type2; |
2144 | |
2145 | if(field1 == NULL) { |
2146 | if(field2 == NULL) goto end; |
2147 | else { |
2148 | different = 1; |
2149 | goto end; |
2150 | } |
2151 | } else if(field2 == NULL) { |
2152 | different = 1; |
2153 | goto end; |
2154 | } |
2155 | |
2156 | g_assert(field1->fixed_root != FIELD_UNKNOWN); |
2157 | g_assert(field2->fixed_root != FIELD_UNKNOWN); |
2158 | g_assert(field1->fixed_parent != FIELD_UNKNOWN); |
2159 | g_assert(field2->fixed_parent != FIELD_UNKNOWN); |
2160 | g_assert(field1->fixed_size != FIELD_UNKNOWN); |
2161 | g_assert(field2->fixed_size != FIELD_UNKNOWN); |
2162 | |
2163 | type1 = field1->field_type; |
2164 | type2 = field2->field_type; |
2165 | |
77175651 |
2166 | if(type1->type_class != type2->type_class) { |
2167 | different = 1; |
2168 | goto end; |
2169 | } |
2170 | if(type1->element_name != type2->element_name) { |
2171 | different = 1; |
2172 | goto end; |
2173 | } |
2174 | |
2175 | switch(type1->type_class) { |
2176 | case LTT_INT: |
2177 | case LTT_UINT: |
2178 | case LTT_FLOAT: |
2179 | case LTT_POINTER: |
2180 | case LTT_LONG: |
2181 | case LTT_ULONG: |
2182 | case LTT_SIZE_T: |
2183 | case LTT_SSIZE_T: |
2184 | case LTT_OFF_T: |
2185 | if(field1->field_size != field2->field_size) { |
2186 | different = 1; |
2187 | goto end; |
2188 | } |
2189 | break; |
2190 | case LTT_ENUM: |
2191 | if(type1->element_number != type2->element_number) { |
2192 | different = 1; |
2193 | goto end; |
2194 | } |
2195 | for(i=0;i<type1->element_number;i++) { |
2196 | if(type1->enum_strings[i] != type2->enum_strings[i]) { |
2197 | different = 1; |
2198 | goto end; |
2199 | } |
2200 | } |
2201 | break; |
2202 | case LTT_SEQUENCE: |
2203 | /* Two elements : size and child */ |
2204 | g_assert(type1->element_number != type2->element_number); |
2205 | for(i=0;i<type1->element_number;i++) { |
2206 | if(check_fields_compatibility(event_type1, event_type2, |
2207 | field1->child[0], field2->child[0])) { |
2208 | different = 1; |
2209 | goto end; |
2210 | } |
2211 | } |
2212 | break; |
2213 | case LTT_STRING: |
2214 | break; |
2215 | case LTT_ARRAY: |
2216 | if(field1->field_size != field2->field_size) { |
2217 | different = 1; |
2218 | goto end; |
2219 | } |
2220 | /* Two elements : size and child */ |
2221 | g_assert(type1->element_number != type2->element_number); |
2222 | for(i=0;i<type1->element_number;i++) { |
2223 | if(check_fields_compatibility(event_type1, event_type2, |
2224 | field1->child[0], field2->child[0])) { |
2225 | different = 1; |
2226 | goto end; |
2227 | } |
2228 | } |
2229 | break; |
2230 | case LTT_STRUCT: |
2231 | case LTT_UNION: |
2232 | if(type1->element_number != type2->element_number) { |
2233 | different = 1; |
2234 | break; |
2235 | } |
2236 | for(i=0;i<type1->element_number;i++) { |
2237 | if(check_fields_compatibility(event_type1, event_type2, |
2238 | field1->child[0], field2->child[0])) { |
2239 | different = 1; |
2240 | goto end; |
2241 | } |
2242 | } |
2243 | break; |
2244 | } |
2245 | end: |
2246 | return different; |
2247 | } |
2248 | |
2249 | |
2250 | |
3aee1200 |
2251 | |
2252 | #if 0 |
6cd62ccf |
2253 | /***************************************************************************** |
2254 | *Function name |
2255 | * getFieldtypeSize: get the size of the field type (primitive type) |
2256 | *Input params |
6cd62ccf |
2257 | * evT : event type |
2258 | * offsetRoot : offset from the root |
2259 | * offsetParent : offset from the parrent |
2260 | * fld : field |
2261 | * evD : event data, it may be NULL |
2262 | *Return value |
2263 | * int : size of the field |
2264 | ****************************************************************************/ |
2265 | |
3aee1200 |
2266 | static inline gint getFieldtypeSize(LttTracefile *tf, |
21182d4a |
2267 | LttEventType * evT, gint offsetRoot, |
3aee1200 |
2268 | gint offsetParent, LttField * fld, void *evD) |
6cd62ccf |
2269 | { |
21182d4a |
2270 | gint size, size1, element_number, i, offset1, offset2; |
963b5f2d |
2271 | LttType * type = fld->field_type; |
6cd62ccf |
2272 | |
3aee1200 |
2273 | /* This likely has been tested with gcov : half of them.. */ |
2274 | if(unlikely(fld->field_fixed == 1)){ |
2275 | /* tested : none */ |
2276 | if(unlikely(fld == evT->root_field)) { |
2277 | size = fld->field_size; |
2278 | goto end_getFieldtypeSize; |
21182d4a |
2279 | } |
3aee1200 |
2280 | } |
6cd62ccf |
2281 | |
3aee1200 |
2282 | /* From gcov profiling : half string, half struct, can we gain something |
2283 | * from that ? (Mathieu) */ |
2284 | switch(type->type_class) { |
2285 | case LTT_ARRAY: |
2286 | element_number = (int) type->element_number; |
2287 | if(fld->field_fixed == -1){ |
2288 | size = getFieldtypeSize(tf, evT, offsetRoot, |
2289 | 0,fld->child[0], NULL); |
2290 | if(size == 0){ //has string or sequence |
cf74a6f1 |
2291 | fld->field_fixed = 0; |
3aee1200 |
2292 | }else{ |
2293 | fld->field_fixed = 1; |
2294 | size *= element_number; |
a0d63196 |
2295 | } |
3aee1200 |
2296 | }else if(fld->field_fixed == 0){// has string or sequence |
cf74a6f1 |
2297 | size = 0; |
3aee1200 |
2298 | for(i=0;i<element_number;i++){ |
2299 | size += getFieldtypeSize(tf, evT, offsetRoot+size,size, |
2300 | fld->child[0], evD+size); |
cf74a6f1 |
2301 | } |
3aee1200 |
2302 | }else size = fld->field_size; |
2303 | if(unlikely(!evD)){ |
a0d63196 |
2304 | fld->fixed_root = (offsetRoot==-1) ? 0 : 1; |
2305 | fld->fixed_parent = (offsetParent==-1) ? 0 : 1; |
3aee1200 |
2306 | } |
cf74a6f1 |
2307 | |
3aee1200 |
2308 | break; |
2309 | |
2310 | case LTT_SEQUENCE: |
2311 | size1 = (int) ltt_type_size(fac, type); |
2312 | if(fld->field_fixed == -1){ |
2313 | fld->sequ_number_size = size1; |
2314 | fld->field_fixed = 0; |
2315 | size = getFieldtypeSize(evT, offsetRoot, |
2316 | 0,fld->child[0], NULL); |
2317 | fld->element_size = size; |
2318 | }else{//0: sequence |
2319 | element_number = getIntNumber(tf,size1,evD); |
2320 | type->element_number = element_number; |
2321 | if(fld->element_size > 0){ |
2322 | size = element_number * fld->element_size; |
2323 | }else{//sequence has string or sequence |
2324 | size = 0; |
cf74a6f1 |
2325 | for(i=0;i<element_number;i++){ |
3aee1200 |
2326 | size += getFieldtypeSize(tf, evT, |
2327 | offsetRoot+size+size1,size+size1, |
2328 | fld->child[0], evD+size+size1); |
cf74a6f1 |
2329 | } |
3aee1200 |
2330 | } |
2331 | size += size1; |
2332 | } |
2333 | if(unlikely(!evD)){ |
d37b2aaa |
2334 | fld->fixed_root = (offsetRoot==-1) ? 0 : 1; |
2335 | fld->fixed_parent = (offsetParent==-1) ? 0 : 1; |
3aee1200 |
2336 | } |
cf74a6f1 |
2337 | |
3aee1200 |
2338 | break; |
2339 | |
2340 | case LTT_STRING: |
2341 | size = 0; |
2342 | if(fld->field_fixed == -1){ |
2343 | fld->field_fixed = 0; |
2344 | }else{//0: string |
2345 | /* Hope my implementation is faster than strlen (Mathieu) */ |
2346 | char *ptr=(char*)evD; |
2347 | size = 1; |
2348 | /* from gcov : many many strings are empty, make it the common case.*/ |
2349 | while(unlikely(*ptr != '\0')) { size++; ptr++; } |
2350 | //size = ptr - (char*)evD + 1; //include end : '\0' |
2351 | } |
2352 | fld->fixed_root = (offsetRoot==-1) ? 0 : 1; |
2353 | fld->fixed_parent = (offsetParent==-1) ? 0 : 1; |
2354 | |
2355 | break; |
2356 | |
2357 | case LTT_STRUCT: |
2358 | element_number = (int) type->element_number; |
2359 | size = 0; |
2360 | /* tested with gcov */ |
2361 | if(unlikely(fld->field_fixed == -1)){ |
2362 | offset1 = offsetRoot; |
2363 | offset2 = 0; |
2364 | for(i=0;i<element_number;i++){ |
2365 | size1=getFieldtypeSize(tf, evT,offset1,offset2, |
2366 | fld->child[i], NULL); |
2367 | if(likely(size1 > 0 && size >= 0)){ |
2368 | size += size1; |
2369 | if(likely(offset1 >= 0)) offset1 += size1; |
2370 | offset2 += size1; |
2371 | }else{ |
2372 | size = -1; |
2373 | offset1 = -1; |
2374 | offset2 = -1; |
2375 | } |
a0d63196 |
2376 | } |
3aee1200 |
2377 | if(unlikely(size == -1)){ |
2378 | fld->field_fixed = 0; |
2379 | size = 0; |
2380 | }else fld->field_fixed = 1; |
2381 | }else if(likely(fld->field_fixed == 0)){ |
2382 | offset1 = offsetRoot; |
2383 | offset2 = 0; |
2384 | for(i=0;unlikely(i<element_number);i++){ |
2385 | size=getFieldtypeSize(tf, evT, offset1, offset2, |
2386 | fld->child[i], evD+offset2); |
2387 | offset1 += size; |
2388 | offset2 += size; |
2389 | } |
2390 | size = offset2; |
2391 | }else size = fld->field_size; |
2392 | fld->fixed_root = (offsetRoot==-1) ? 0 : 1; |
2393 | fld->fixed_parent = (offsetParent==-1) ? 0 : 1; |
2394 | break; |
2395 | |
2396 | default: |
2397 | if(unlikely(fld->field_fixed == -1)){ |
2398 | size = (int) ltt_type_size(LTT_GET_BO(tf), type); |
2399 | fld->field_fixed = 1; |
2400 | }else size = fld->field_size; |
2401 | if(unlikely(!evD)){ |
2402 | fld->fixed_root = (offsetRoot==-1) ? 0 : 1; |
2403 | fld->fixed_parent = (offsetParent==-1) ? 0 : 1; |
2404 | } |
2405 | break; |
cf74a6f1 |
2406 | } |
2407 | |
6cd62ccf |
2408 | fld->offset_root = offsetRoot; |
2409 | fld->offset_parent = offsetParent; |
6cd62ccf |
2410 | fld->field_size = size; |
2411 | |
21182d4a |
2412 | end_getFieldtypeSize: |
2413 | |
6cd62ccf |
2414 | return size; |
2415 | } |
3aee1200 |
2416 | #endif //0 |
6cd62ccf |
2417 | |
2418 | /***************************************************************************** |
2419 | *Function name |
eed2ef37 |
2420 | * ltt_get_int : get an integer number |
6cd62ccf |
2421 | *Input params |
3aee1200 |
2422 | * reverse_byte_order: must we reverse the byte order ? |
6cd62ccf |
2423 | * size : the size of the integer |
3aee1200 |
2424 | * ptr : the data pointer |
6cd62ccf |
2425 | *Return value |
cf74a6f1 |
2426 | * gint64 : a 64 bits integer |
6cd62ccf |
2427 | ****************************************************************************/ |
2428 | |
eed2ef37 |
2429 | gint64 ltt_get_int(gboolean reverse_byte_order, gint size, void *data) |
6cd62ccf |
2430 | { |
3aee1200 |
2431 | gint64 val; |
cf74a6f1 |
2432 | |
2433 | switch(size) { |
3aee1200 |
2434 | case 1: val = *((gint8*)data); break; |
2435 | case 2: val = ltt_get_int16(reverse_byte_order, data); break; |
2436 | case 4: val = ltt_get_int32(reverse_byte_order, data); break; |
2437 | case 8: val = ltt_get_int64(reverse_byte_order, data); break; |
2438 | default: val = ltt_get_int64(reverse_byte_order, data); |
2439 | g_critical("get_int : integer size %d unknown", size); |
cf74a6f1 |
2440 | break; |
2441 | } |
2442 | |
3aee1200 |
2443 | return val; |
6cd62ccf |
2444 | } |
3aee1200 |
2445 | |
6cd62ccf |
2446 | /***************************************************************************** |
2447 | *Function name |
eed2ef37 |
2448 | * ltt_get_uint : get an unsigned integer number |
6cd62ccf |
2449 | *Input params |
3aee1200 |
2450 | * reverse_byte_order: must we reverse the byte order ? |
2451 | * size : the size of the integer |
2452 | * ptr : the data pointer |
2453 | *Return value |
2454 | * guint64 : a 64 bits unsigned integer |
6cd62ccf |
2455 | ****************************************************************************/ |
2456 | |
eed2ef37 |
2457 | guint64 ltt_get_uint(gboolean reverse_byte_order, gint size, void *data) |
6cd62ccf |
2458 | { |
3aee1200 |
2459 | guint64 val; |
2460 | |
2461 | switch(size) { |
2462 | case 1: val = *((gint8*)data); break; |
2463 | case 2: val = ltt_get_uint16(reverse_byte_order, data); break; |
2464 | case 4: val = ltt_get_uint32(reverse_byte_order, data); break; |
2465 | case 8: val = ltt_get_uint64(reverse_byte_order, data); break; |
2466 | default: val = ltt_get_uint64(reverse_byte_order, data); |
2467 | g_critical("get_uint : unsigned integer size %d unknown", |
2468 | size); |
2469 | break; |
2470 | } |
2471 | |
2472 | return val; |
6cd62ccf |
2473 | } |
3aee1200 |
2474 | |
2475 | |
a5dcde2f |
2476 | /* get the node name of the system */ |
2477 | |
2478 | char * ltt_trace_system_description_node_name (LttSystemDescription * s) |
2479 | { |
2480 | return s->node_name; |
2481 | } |
2482 | |
2483 | |
2484 | /* get the domain name of the system */ |
2485 | |
2486 | char * ltt_trace_system_description_domain_name (LttSystemDescription * s) |
2487 | { |
2488 | return s->domain_name; |
2489 | } |
2490 | |
2491 | |
2492 | /* get the description of the system */ |
2493 | |
2494 | char * ltt_trace_system_description_description (LttSystemDescription * s) |
2495 | { |
2496 | return s->description; |
2497 | } |
2498 | |
2499 | |
2500 | /* get the start time of the trace */ |
2501 | |
2502 | LttTime ltt_trace_system_description_trace_start_time(LttSystemDescription *s) |
2503 | { |
2504 | return s->trace_start; |
2505 | } |
2506 | |
18206708 |
2507 | |
2508 | LttTracefile *ltt_tracefile_new() |
2509 | { |
2510 | return g_new(LttTracefile, 1); |
2511 | } |
2512 | |
2513 | void ltt_tracefile_destroy(LttTracefile *tf) |
2514 | { |
2515 | g_free(tf); |
2516 | } |
2517 | |
2518 | void ltt_tracefile_copy(LttTracefile *dest, const LttTracefile *src) |
2519 | { |
2520 | *dest = *src; |
2521 | } |
2522 | |
3aee1200 |
2523 | /* Before library loading... */ |
2524 | |
2525 | static void __attribute__((constructor)) init(void) |
2526 | { |
2527 | LTT_FACILITY_NAME_HEARTBEAT = g_quark_from_string("heartbeat"); |
2528 | LTT_EVENT_NAME_HEARTBEAT = g_quark_from_string("heartbeat"); |
2529 | |
3865ea09 |
2530 | LTT_TRACEFILE_NAME_FACILITIES = g_quark_from_string("/control/facilities"); |
3aee1200 |
2531 | } |
2532 | |