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 */ |
f104d082 |
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. */ |
f104d082 |
86 | #if 0 |
3aee1200 |
87 | static inline void preset_field_type_size(LttTracefile *tf, |
88 | LttEventType *event_type, |
89 | off_t offset_root, off_t offset_parent, |
90 | enum field_status *fixed_root, enum field_status *fixed_parent, |
91 | LttField *field); |
f104d082 |
92 | #endif //0 |
6cd62ccf |
93 | |
3aee1200 |
94 | /* map a fixed size or a block information from the file (fd) */ |
95 | static gint map_block(LttTracefile * tf, guint block_num); |
96 | |
97 | /* calculate nsec per cycles for current block */ |
791dffa6 |
98 | #if 0 |
99 | static guint32 calc_nsecs_per_cycle(LttTracefile * t); |
100 | static guint64 cycles_2_ns(LttTracefile *tf, guint64 cycles); |
101 | #endif //0 |
6cd62ccf |
102 | |
3aee1200 |
103 | /* go to the next event */ |
104 | static int ltt_seek_next_event(LttTracefile *tf); |
6cd62ccf |
105 | |
eed2ef37 |
106 | void ltt_update_event_size(LttTracefile *tf); |
107 | |
3aee1200 |
108 | #if 0 |
43da6a59 |
109 | /* Functions to parse system.xml file (using glib xml parser) */ |
51b5991e |
110 | static void parser_start_element (GMarkupParseContext __UNUSED__ *context, |
43da6a59 |
111 | const gchar *element_name, |
112 | const gchar **attribute_names, |
113 | const gchar **attribute_values, |
114 | gpointer user_data, |
115 | GError **error) |
116 | { |
117 | int i=0; |
118 | LttSystemDescription* des = (LttSystemDescription* )user_data; |
119 | if(strcmp("system", element_name)){ |
2a74fbf4 |
120 | *error = g_error_new(G_MARKUP_ERROR, |
121 | G_LOG_LEVEL_WARNING, |
122 | "This is not system.xml file"); |
123 | return; |
43da6a59 |
124 | } |
125 | |
126 | while(attribute_names[i]){ |
127 | if(strcmp("node_name", attribute_names[i])==0){ |
128 | des->node_name = g_strdup(attribute_values[i]); |
129 | }else if(strcmp("domainname", attribute_names[i])==0){ |
130 | des->domain_name = g_strdup(attribute_values[i]); |
131 | }else if(strcmp("cpu", attribute_names[i])==0){ |
132 | des->nb_cpu = atoi(attribute_values[i]); |
133 | }else if(strcmp("arch_size", attribute_names[i])==0){ |
134 | if(strcmp(attribute_values[i],"LP32") == 0) des->size = LTT_LP32; |
135 | else if(strcmp(attribute_values[i],"ILP32") == 0) des->size = LTT_ILP32; |
136 | else if(strcmp(attribute_values[i],"LP64") == 0) des->size = LTT_LP64; |
137 | else if(strcmp(attribute_values[i],"ILP64") == 0) des->size = LTT_ILP64; |
138 | else if(strcmp(attribute_values[i],"UNKNOWN") == 0) des->size = LTT_UNKNOWN; |
139 | }else if(strcmp("endian", attribute_names[i])==0){ |
140 | if(strcmp(attribute_values[i],"LITTLE_ENDIAN") == 0) |
141 | des->endian = LTT_LITTLE_ENDIAN; |
142 | else if(strcmp(attribute_values[i],"BIG_ENDIAN") == 0) |
143 | des->endian = LTT_BIG_ENDIAN; |
144 | }else if(strcmp("kernel_name", attribute_names[i])==0){ |
145 | des->kernel_name = g_strdup(attribute_values[i]); |
146 | }else if(strcmp("kernel_release", attribute_names[i])==0){ |
147 | des->kernel_release = g_strdup(attribute_values[i]); |
148 | }else if(strcmp("kernel_version", attribute_names[i])==0){ |
149 | des->kernel_version = g_strdup(attribute_values[i]); |
150 | }else if(strcmp("machine", attribute_names[i])==0){ |
151 | des->machine = g_strdup(attribute_values[i]); |
152 | }else if(strcmp("processor", attribute_names[i])==0){ |
153 | des->processor = g_strdup(attribute_values[i]); |
154 | }else if(strcmp("hardware_platform", attribute_names[i])==0){ |
155 | des->hardware_platform = g_strdup(attribute_values[i]); |
156 | }else if(strcmp("operating_system", attribute_names[i])==0){ |
157 | des->operating_system = g_strdup(attribute_values[i]); |
158 | }else if(strcmp("ltt_major_version", attribute_names[i])==0){ |
159 | des->ltt_major_version = atoi(attribute_values[i]); |
160 | }else if(strcmp("ltt_minor_version", attribute_names[i])==0){ |
161 | des->ltt_minor_version = atoi(attribute_values[i]); |
162 | }else if(strcmp("ltt_block_size", attribute_names[i])==0){ |
163 | des->ltt_block_size = atoi(attribute_values[i]); |
164 | }else{ |
2a74fbf4 |
165 | *error = g_error_new(G_MARKUP_ERROR, |
166 | G_LOG_LEVEL_WARNING, |
167 | "Not a valid attribute"); |
168 | return; |
43da6a59 |
169 | } |
170 | i++; |
171 | } |
172 | } |
173 | |
51b5991e |
174 | static void parser_characters (GMarkupParseContext __UNUSED__ *context, |
43da6a59 |
175 | const gchar *text, |
51b5991e |
176 | gsize __UNUSED__ text_len, |
43da6a59 |
177 | gpointer user_data, |
51b5991e |
178 | GError __UNUSED__ **error) |
43da6a59 |
179 | { |
180 | LttSystemDescription* des = (LttSystemDescription* )user_data; |
181 | des->description = g_strdup(text); |
182 | } |
3aee1200 |
183 | #endif //0 |
f104d082 |
184 | |
185 | |
77175651 |
186 | LttFacility *ltt_trace_get_facility_by_num(LttTrace *t, |
3aee1200 |
187 | guint num) |
188 | { |
189 | g_assert(num < t->facilities_by_num->len); |
190 | |
191 | return &g_array_index(t->facilities_by_num, LttFacility, num); |
192 | |
193 | } |
43da6a59 |
194 | |
b56dcdf2 |
195 | guint ltt_trace_get_num_cpu(LttTrace *t) |
196 | { |
197 | return t->num_cpu; |
198 | } |
199 | |
43da6a59 |
200 | |
b7576a11 |
201 | /* trace can be NULL |
202 | * |
203 | * Return value : 0 success, 1 bad tracefile |
204 | */ |
205 | int parse_trace_header(void *header, LttTracefile *tf, LttTrace *t) |
206 | { |
207 | guint32 *magic_number = (guint32*)header; |
208 | struct ltt_trace_header_any *any = (struct ltt_trace_header_any *)header; |
209 | |
210 | if(*magic_number == LTT_MAGIC_NUMBER) |
211 | tf->reverse_bo = 0; |
212 | else if(*magic_number == LTT_REV_MAGIC_NUMBER) |
213 | tf->reverse_bo = 1; |
214 | else /* invalid magic number, bad tracefile ! */ |
215 | return 1; |
216 | |
217 | /* Get float byte order : might be different from int byte order |
218 | * (or is set to 0 if the trace has no float (kernel trace)) */ |
219 | tf->float_word_order = any->float_word_order; |
f104d082 |
220 | tf->has_alignment = any->has_alignment; |
b7576a11 |
221 | |
222 | if(t) { |
223 | t->arch_type = ltt_get_uint32(LTT_GET_BO(tf), |
224 | &any->arch_type); |
225 | t->arch_variant = ltt_get_uint32(LTT_GET_BO(tf), |
226 | &any->arch_variant); |
227 | t->arch_size = any->arch_size; |
228 | t->ltt_major_version = any->major_version; |
229 | t->ltt_minor_version = any->minor_version; |
230 | t->flight_recorder = any->flight_recorder; |
231 | t->has_heartbeat = any->has_heartbeat; |
b7576a11 |
232 | t->has_tsc = any->has_tsc; |
233 | } |
234 | |
235 | |
236 | switch(any->major_version) { |
237 | |
238 | case 0: |
239 | switch(any->minor_version) { |
240 | case 3: |
241 | { |
823820eb |
242 | tf->buffer_header_size = |
243 | sizeof(struct ltt_block_start_header) |
244 | + sizeof(struct ltt_trace_header_0_3); |
986e2a7c |
245 | g_warning("Unsupported trace version : %hhu.%hhu", |
246 | any->major_version, any->minor_version); |
247 | return 1; |
248 | } |
249 | break; |
250 | case 4: |
251 | { |
252 | struct ltt_trace_header_0_4 *vheader = |
253 | (struct ltt_trace_header_0_4 *)header; |
254 | tf->buffer_header_size = |
255 | sizeof(struct ltt_block_start_header) |
256 | + sizeof(struct ltt_trace_header_0_4); |
257 | if(t) { |
791dffa6 |
258 | t->start_freq = ltt_get_uint64(LTT_GET_BO(tf), |
259 | &vheader->start_freq); |
260 | t->start_tsc = ltt_get_uint64(LTT_GET_BO(tf), |
261 | &vheader->start_tsc); |
986e2a7c |
262 | t->start_monotonic = ltt_get_uint64(LTT_GET_BO(tf), |
263 | &vheader->start_monotonic); |
264 | t->start_time = ltt_get_time(LTT_GET_BO(tf), |
265 | &vheader->start_time); |
a4fa48a2 |
266 | t->start_time.tv_nsec *= 1000; /* microsec to nanosec */ |
267 | |
88612d17 |
268 | t->start_time_from_tsc = ltt_time_from_uint64( |
269 | (double)t->start_tsc * 1000000.0 / (double)t->start_freq); |
986e2a7c |
270 | } |
b7576a11 |
271 | } |
272 | break; |
273 | default: |
986e2a7c |
274 | g_warning("Unsupported trace version : %hhu.%hhu", |
b7576a11 |
275 | any->major_version, any->minor_version); |
276 | return 1; |
277 | } |
278 | break; |
279 | |
280 | default: |
281 | g_warning("Unsupported trace version : %hhu.%hhu", |
282 | any->major_version, any->minor_version); |
283 | return 1; |
284 | } |
285 | |
286 | |
287 | return 0; |
288 | } |
289 | |
290 | |
291 | |
6cd62ccf |
292 | /***************************************************************************** |
293 | *Function name |
963b5f2d |
294 | * ltt_tracefile_open : open a trace file, construct a LttTracefile |
6cd62ccf |
295 | *Input params |
963b5f2d |
296 | * t : the trace containing the tracefile |
297 | * fileName : path name of the trace file |
3aee1200 |
298 | * tf : the tracefile structure |
6cd62ccf |
299 | *Return value |
3aee1200 |
300 | * : 0 for success, -1 otherwise. |
6cd62ccf |
301 | ****************************************************************************/ |
302 | |
3aee1200 |
303 | gint ltt_tracefile_open(LttTrace *t, gchar * fileName, LttTracefile *tf) |
6cd62ccf |
304 | { |
963b5f2d |
305 | struct stat lTDFStat; /* Trace data file status */ |
3aee1200 |
306 | struct ltt_block_start_header *header; |
b77d1b57 |
307 | int page_size = getpagesize(); |
6cd62ccf |
308 | |
309 | //open the file |
d3d34f49 |
310 | tf->long_name = g_quark_from_string(fileName); |
963b5f2d |
311 | tf->trace = t; |
3865ea09 |
312 | tf->fd = open(fileName, O_RDONLY); |
6cd62ccf |
313 | if(tf->fd < 0){ |
2a74fbf4 |
314 | g_warning("Unable to open input data file %s\n", fileName); |
3aee1200 |
315 | goto end; |
6cd62ccf |
316 | } |
317 | |
318 | // Get the file's status |
319 | if(fstat(tf->fd, &lTDFStat) < 0){ |
2a74fbf4 |
320 | g_warning("Unable to get the status of the input data file %s\n", fileName); |
3aee1200 |
321 | goto close_file; |
6cd62ccf |
322 | } |
323 | |
324 | // Is the file large enough to contain a trace |
823820eb |
325 | if(lTDFStat.st_size < |
9ea7b94b |
326 | (off_t)(sizeof(struct ltt_block_start_header) |
327 | + sizeof(struct ltt_trace_header_any))){ |
8710c6c7 |
328 | g_print("The input data file %s does not contain a trace\n", fileName); |
3aee1200 |
329 | goto close_file; |
330 | } |
331 | |
332 | /* Temporarily map the buffer start header to get trace information */ |
333 | /* Multiple of pages aligned head */ |
b77d1b57 |
334 | tf->buffer.head = mmap(0, |
9ea7b94b |
335 | PAGE_ALIGN(sizeof(struct ltt_block_start_header) |
336 | + sizeof(struct ltt_trace_header_any)), PROT_READ, |
3aee1200 |
337 | MAP_PRIVATE, tf->fd, 0); |
3865ea09 |
338 | if(tf->buffer.head == MAP_FAILED) { |
3aee1200 |
339 | perror("Error in allocating memory for buffer of tracefile"); |
340 | goto close_file; |
6cd62ccf |
341 | } |
3865ea09 |
342 | g_assert( ( (guint)tf->buffer.head&(8-1) ) == 0); // make sure it's aligned. |
3aee1200 |
343 | |
344 | header = (struct ltt_block_start_header*)tf->buffer.head; |
6cd62ccf |
345 | |
51551c6f |
346 | if(parse_trace_header(header->trace, tf, NULL)) { |
347 | g_warning("parse_trace_header error"); |
348 | goto unmap_file; |
349 | } |
3aee1200 |
350 | |
6cd62ccf |
351 | //store the size of the file |
352 | tf->file_size = lTDFStat.st_size; |
f628823c |
353 | tf->buf_size = ltt_get_uint32(LTT_GET_BO(tf), &header->buf_size); |
354 | tf->num_blocks = tf->file_size / tf->buf_size; |
355 | |
356 | if(munmap(tf->buffer.head, |
9ea7b94b |
357 | PAGE_ALIGN(sizeof(struct ltt_block_start_header) |
358 | + sizeof(struct ltt_trace_header_any)))) { |
f628823c |
359 | g_warning("unmap size : %u\n", |
9ea7b94b |
360 | PAGE_ALIGN(sizeof(struct ltt_block_start_header) |
361 | + sizeof(struct ltt_trace_header_any))); |
f628823c |
362 | perror("munmap error"); |
363 | g_assert(0); |
364 | } |
3aee1200 |
365 | tf->buffer.head = NULL; |
6cd62ccf |
366 | |
963b5f2d |
367 | //read the first block |
3aee1200 |
368 | if(map_block(tf,0)) { |
369 | perror("Cannot map block for tracefile"); |
370 | goto close_file; |
371 | } |
372 | |
373 | return 0; |
6cd62ccf |
374 | |
3aee1200 |
375 | /* Error */ |
376 | unmap_file: |
f628823c |
377 | if(munmap(tf->buffer.head, |
9ea7b94b |
378 | PAGE_ALIGN(sizeof(struct ltt_block_start_header) |
379 | + sizeof(struct ltt_trace_header_any)))) { |
f628823c |
380 | g_warning("unmap size : %u\n", |
9ea7b94b |
381 | PAGE_ALIGN(sizeof(struct ltt_block_start_header) |
382 | + sizeof(struct ltt_trace_header_any))); |
f628823c |
383 | perror("munmap error"); |
384 | g_assert(0); |
385 | } |
3aee1200 |
386 | close_file: |
3865ea09 |
387 | close(tf->fd); |
3aee1200 |
388 | end: |
389 | return -1; |
6cd62ccf |
390 | } |
391 | |
d3d34f49 |
392 | LttTrace *ltt_tracefile_get_trace(LttTracefile *tf) |
393 | { |
394 | return tf->trace; |
395 | } |
396 | |
3aee1200 |
397 | #if 0 |
6cd62ccf |
398 | /***************************************************************************** |
963b5f2d |
399 | *Open control and per cpu tracefiles |
6cd62ccf |
400 | ****************************************************************************/ |
401 | |
45e14832 |
402 | void ltt_tracefile_open_cpu(LttTrace *t, gchar * tracefile_name) |
6cd62ccf |
403 | { |
963b5f2d |
404 | LttTracefile * tf; |
405 | tf = ltt_tracefile_open(t,tracefile_name); |
4a6c8e36 |
406 | if(!tf) return; |
963b5f2d |
407 | t->per_cpu_tracefile_number++; |
408 | g_ptr_array_add(t->per_cpu_tracefiles, tf); |
6cd62ccf |
409 | } |
410 | |
45e14832 |
411 | gint ltt_tracefile_open_control(LttTrace *t, gchar * control_name) |
6cd62ccf |
412 | { |
963b5f2d |
413 | LttTracefile * tf; |
c02ea99f |
414 | LttEvent ev; |
963b5f2d |
415 | LttFacility * f; |
963b5f2d |
416 | void * pos; |
417 | FacilityLoad fLoad; |
8d1e6362 |
418 | unsigned int i; |
963b5f2d |
419 | |
420 | tf = ltt_tracefile_open(t,control_name); |
2a74fbf4 |
421 | if(!tf) { |
422 | g_warning("ltt_tracefile_open_control : bad file descriptor"); |
423 | return -1; |
424 | } |
963b5f2d |
425 | t->control_tracefile_number++; |
426 | g_ptr_array_add(t->control_tracefiles,tf); |
427 | |
428 | //parse facilities tracefile to get base_id |
542ceddd |
429 | if(strcmp(&control_name[strlen(control_name)-10],"facilities") ==0){ |
963b5f2d |
430 | while(1){ |
c02ea99f |
431 | if(!ltt_tracefile_read(tf,&ev)) return 0; // end of file |
40331ba8 |
432 | |
c02ea99f |
433 | if(ev.event_id == TRACE_FACILITY_LOAD){ |
434 | pos = ev.data; |
45e14832 |
435 | fLoad.name = (gchar*)pos; |
47a166fc |
436 | fLoad.checksum = *(LttChecksum*)(pos + strlen(fLoad.name)); |
cbd41522 |
437 | fLoad.base_code = *(guint32 *)(pos + strlen(fLoad.name) + sizeof(LttChecksum)); |
963b5f2d |
438 | |
439 | for(i=0;i<t->facility_number;i++){ |
440 | f = (LttFacility*)g_ptr_array_index(t->facilities,i); |
441 | if(strcmp(f->name,fLoad.name)==0 && fLoad.checksum==f->checksum){ |
442 | f->base_id = fLoad.base_code; |
443 | break; |
444 | } |
445 | } |
2a74fbf4 |
446 | if(i==t->facility_number) { |
8d1e6362 |
447 | g_warning("Facility: %s, checksum: %u is not found", |
448 | fLoad.name,(unsigned int)fLoad.checksum); |
2a74fbf4 |
449 | return -1; |
450 | } |
c02ea99f |
451 | }else if(ev.event_id == TRACE_BLOCK_START){ |
40331ba8 |
452 | continue; |
c02ea99f |
453 | }else if(ev.event_id == TRACE_BLOCK_END){ |
40331ba8 |
454 | break; |
2a74fbf4 |
455 | }else { |
8d1e6362 |
456 | g_warning("Not valid facilities trace file"); |
2a74fbf4 |
457 | return -1; |
458 | } |
963b5f2d |
459 | } |
460 | } |
2a74fbf4 |
461 | return 0; |
6cd62ccf |
462 | } |
3aee1200 |
463 | #endif //0 |
6cd62ccf |
464 | |
465 | /***************************************************************************** |
466 | *Function name |
963b5f2d |
467 | * ltt_tracefile_close: close a trace file, |
6cd62ccf |
468 | *Input params |
963b5f2d |
469 | * t : tracefile which will be closed |
6cd62ccf |
470 | ****************************************************************************/ |
471 | |
963b5f2d |
472 | void ltt_tracefile_close(LttTracefile *t) |
6cd62ccf |
473 | { |
f628823c |
474 | int page_size = getpagesize(); |
475 | |
3aee1200 |
476 | if(t->buffer.head != NULL) |
f628823c |
477 | if(munmap(t->buffer.head, PAGE_ALIGN(t->buf_size))) { |
478 | g_warning("unmap size : %u\n", |
479 | PAGE_ALIGN(t->buf_size)); |
480 | perror("munmap error"); |
481 | g_assert(0); |
482 | } |
483 | |
3865ea09 |
484 | close(t->fd); |
963b5f2d |
485 | } |
6cd62ccf |
486 | |
6cd62ccf |
487 | |
963b5f2d |
488 | /***************************************************************************** |
489 | *Get system information |
490 | ****************************************************************************/ |
3aee1200 |
491 | #if 0 |
45e14832 |
492 | gint getSystemInfo(LttSystemDescription* des, gchar * pathname) |
963b5f2d |
493 | { |
45e14832 |
494 | int fd; |
495 | GIOChannel *iochan; |
496 | gchar *buf = NULL; |
497 | gsize length; |
43da6a59 |
498 | |
499 | GMarkupParseContext * context; |
2a74fbf4 |
500 | GError * error = NULL; |
43da6a59 |
501 | GMarkupParser markup_parser = |
502 | { |
503 | parser_start_element, |
8d1e6362 |
504 | NULL, |
43da6a59 |
505 | parser_characters, |
506 | NULL, /* passthrough */ |
507 | NULL /* error */ |
508 | }; |
963b5f2d |
509 | |
45e14832 |
510 | fd = g_open(pathname, O_RDONLY, 0); |
511 | if(fd == -1){ |
2a74fbf4 |
512 | g_warning("Can not open file : %s\n", pathname); |
513 | return -1; |
6cd62ccf |
514 | } |
963b5f2d |
515 | |
45e14832 |
516 | iochan = g_io_channel_unix_new(fd); |
517 | |
43da6a59 |
518 | context = g_markup_parse_context_new(&markup_parser, 0, des,NULL); |
6cd62ccf |
519 | |
45e14832 |
520 | //while(fgets(buf,DIR_NAME_SIZE, fp) != NULL){ |
521 | while(g_io_channel_read_line(iochan, &buf, &length, NULL, &error) |
522 | != G_IO_STATUS_EOF) { |
523 | |
524 | if(error != NULL) { |
525 | g_warning("Can not read xml file: \n%s\n", error->message); |
526 | g_error_free(error); |
527 | } |
528 | if(!g_markup_parse_context_parse(context, buf, length, &error)){ |
2a74fbf4 |
529 | if(error != NULL) { |
530 | g_warning("Can not parse xml file: \n%s\n", error->message); |
531 | g_error_free(error); |
532 | } |
533 | g_markup_parse_context_free(context); |
45e14832 |
534 | |
535 | g_io_channel_shutdown(iochan, FALSE, &error); /* No flush */ |
536 | if(error != NULL) { |
537 | g_warning("Can not close file: \n%s\n", error->message); |
538 | g_error_free(error); |
539 | } |
540 | |
541 | close(fd); |
2a74fbf4 |
542 | return -1; |
43da6a59 |
543 | } |
963b5f2d |
544 | } |
2a74fbf4 |
545 | g_markup_parse_context_free(context); |
45e14832 |
546 | |
547 | g_io_channel_shutdown(iochan, FALSE, &error); /* No flush */ |
548 | if(error != NULL) { |
549 | g_warning("Can not close file: \n%s\n", error->message); |
550 | g_error_free(error); |
551 | } |
552 | |
553 | g_close(fd); |
554 | |
555 | g_free(buf); |
2a74fbf4 |
556 | return 0; |
6cd62ccf |
557 | } |
3aee1200 |
558 | #endif //0 |
6cd62ccf |
559 | |
560 | /***************************************************************************** |
963b5f2d |
561 | *The following functions get facility/tracefile information |
6cd62ccf |
562 | ****************************************************************************/ |
3aee1200 |
563 | #if 0 |
45e14832 |
564 | gint getFacilityInfo(LttTrace *t, gchar* eventdefs) |
6cd62ccf |
565 | { |
45e14832 |
566 | GDir * dir; |
567 | const gchar * name; |
8d1e6362 |
568 | unsigned int i,j; |
963b5f2d |
569 | LttFacility * f; |
570 | LttEventType * et; |
45e14832 |
571 | gchar fullname[DIR_NAME_SIZE]; |
572 | GError * error = NULL; |
573 | |
574 | dir = g_dir_open(eventdefs, 0, &error); |
963b5f2d |
575 | |
45e14832 |
576 | if(error != NULL) { |
577 | g_warning("Can not open directory: %s, %s\n", eventdefs, error->message); |
578 | g_error_free(error); |
2a74fbf4 |
579 | return -1; |
580 | } |
963b5f2d |
581 | |
45e14832 |
582 | while((name = g_dir_read_name(dir)) != NULL){ |
583 | if(!g_pattern_match_simple("*.xml", name)) continue; |
584 | strcpy(fullname,eventdefs); |
585 | strcat(fullname,name); |
586 | ltt_facility_open(t,fullname); |
587 | } |
588 | g_dir_close(dir); |
963b5f2d |
589 | |
963b5f2d |
590 | for(j=0;j<t->facility_number;j++){ |
8710c6c7 |
591 | f = (LttFacility*)g_ptr_array_index(t->facilities, j); |
963b5f2d |
592 | for(i=0; i<f->event_number; i++){ |
593 | et = f->events[i]; |
40331ba8 |
594 | setFieldsOffset(NULL, et, NULL, t); |
963b5f2d |
595 | } |
596 | } |
2a74fbf4 |
597 | return 0; |
963b5f2d |
598 | } |
3aee1200 |
599 | #endif //0 |
6cd62ccf |
600 | |
963b5f2d |
601 | /***************************************************************************** |
602 | *A trace is specified as a pathname to the directory containing all the |
603 | *associated data (control tracefiles, per cpu tracefiles, event |
604 | *descriptions...). |
605 | * |
606 | *When a trace is closed, all the associated facilities, types and fields |
607 | *are released as well. |
8d1e6362 |
608 | */ |
609 | |
610 | |
611 | /**************************************************************************** |
612 | * get_absolute_pathname |
803229fa |
613 | * |
8d1e6362 |
614 | * return the unique pathname in the system |
615 | * |
ef35d837 |
616 | * MD : Fixed this function so it uses realpath, dealing well with |
617 | * forgotten cases (.. were not used correctly before). |
803229fa |
618 | * |
963b5f2d |
619 | ****************************************************************************/ |
45e14832 |
620 | void get_absolute_pathname(const gchar *pathname, gchar * abs_pathname) |
9f797243 |
621 | { |
9f797243 |
622 | abs_pathname[0] = '\0'; |
803229fa |
623 | |
ef35d837 |
624 | if ( realpath (pathname, abs_pathname) != NULL) |
625 | return; |
626 | else |
627 | { |
8d1e6362 |
628 | /* error, return the original path unmodified */ |
ef35d837 |
629 | strcpy(abs_pathname, pathname); |
9f797243 |
630 | return; |
631 | } |
ef35d837 |
632 | return; |
9f797243 |
633 | } |
634 | |
3aee1200 |
635 | /* Search for something like : .*_.* |
636 | * |
637 | * The left side is the name, the right side is the number. |
638 | */ |
639 | |
640 | int get_tracefile_name_number(const gchar *raw_name, |
641 | GQuark *name, |
642 | guint *num) |
6cd62ccf |
643 | { |
3aee1200 |
644 | guint raw_name_len = strlen(raw_name); |
645 | gchar char_name[PATH_MAX]; |
3aee1200 |
646 | int i; |
647 | int underscore_pos; |
648 | long int cpu_num; |
649 | gchar *endptr; |
650 | |
651 | for(i=raw_name_len-1;i>=0;i--) { |
652 | if(raw_name[i] == '_') break; |
653 | } |
654 | if(i==0) /* Either not found or name length is 0 */ |
655 | return -1; |
656 | underscore_pos = i; |
963b5f2d |
657 | |
3aee1200 |
658 | cpu_num = strtol(raw_name+underscore_pos+1, &endptr, 10); |
659 | |
660 | if(endptr == raw_name+underscore_pos+1) |
661 | return -1; /* No digit */ |
662 | if(cpu_num == LONG_MIN || cpu_num == LONG_MAX) |
663 | return -1; /* underflow / overflow */ |
1a2ceb63 |
664 | |
3aee1200 |
665 | strncpy(char_name, raw_name, underscore_pos); |
1a2ceb63 |
666 | |
69bd59ed |
667 | char_name[underscore_pos] = '\0'; |
668 | |
3aee1200 |
669 | *name = g_quark_from_string(char_name); |
670 | *num = cpu_num; |
b333a76b |
671 | |
3aee1200 |
672 | return 0; |
673 | } |
963b5f2d |
674 | |
3aee1200 |
675 | |
3865ea09 |
676 | GData **ltt_trace_get_tracefiles_groups(LttTrace *trace) |
77175651 |
677 | { |
3865ea09 |
678 | return &trace->tracefiles; |
77175651 |
679 | } |
680 | |
681 | |
3865ea09 |
682 | void compute_tracefile_group(GQuark key_id, |
683 | GArray *group, |
684 | struct compute_tracefile_group_args *args) |
77175651 |
685 | { |
686 | int i; |
687 | LttTracefile *tf; |
688 | |
689 | for(i=0; i<group->len; i++) { |
690 | tf = &g_array_index (group, LttTracefile, i); |
691 | if(tf->cpu_online) |
3865ea09 |
692 | args->func(tf, args->func_args); |
77175651 |
693 | } |
694 | } |
695 | |
696 | |
3aee1200 |
697 | void ltt_tracefile_group_destroy(gpointer data) |
698 | { |
699 | GArray *group = (GArray *)data; |
700 | int i; |
701 | LttTracefile *tf; |
702 | |
703 | for(i=0; i<group->len; i++) { |
704 | tf = &g_array_index (group, LttTracefile, i); |
705 | if(tf->cpu_online) |
706 | ltt_tracefile_close(tf); |
707 | } |
708 | g_array_free(group, TRUE); |
6cd62ccf |
709 | } |
710 | |
3aee1200 |
711 | gboolean ltt_tracefile_group_has_cpu_online(gpointer data) |
49bf71b5 |
712 | { |
3aee1200 |
713 | GArray *group = (GArray *)data; |
714 | int i; |
715 | LttTracefile *tf; |
716 | |
717 | for(i=0; i<group->len; i++) { |
718 | tf = &g_array_index (group, LttTracefile, i); |
719 | if(tf->cpu_online) return 1; |
720 | } |
721 | return 0; |
49bf71b5 |
722 | } |
723 | |
724 | |
3aee1200 |
725 | /* Open each tracefile under a specific directory. Put them in a |
726 | * GData : permits to access them using their tracefile group pathname. |
727 | * i.e. access control/modules tracefile group by index : |
728 | * "control/module". |
3865ea09 |
729 | * |
730 | * relative path is the path relative to the trace root |
731 | * root path is the full path |
3aee1200 |
732 | * |
733 | * A tracefile group is simply an array where all the per cpu tracefiles sits. |
734 | */ |
735 | |
69bd59ed |
736 | static int open_tracefiles(LttTrace *trace, gchar *root_path, |
737 | gchar *relative_path) |
f7afe191 |
738 | { |
3aee1200 |
739 | DIR *dir = opendir(root_path); |
740 | struct dirent *entry; |
741 | struct stat stat_buf; |
742 | int ret; |
3865ea09 |
743 | |
69bd59ed |
744 | gchar path[PATH_MAX]; |
3aee1200 |
745 | int path_len; |
69bd59ed |
746 | gchar *path_ptr; |
3aee1200 |
747 | |
3865ea09 |
748 | int rel_path_len; |
69bd59ed |
749 | gchar rel_path[PATH_MAX]; |
750 | gchar *rel_path_ptr; |
cb03932a |
751 | LttTracefile tmp_tf; |
3865ea09 |
752 | |
3aee1200 |
753 | if(dir == NULL) { |
754 | perror(root_path); |
755 | return ENOENT; |
756 | } |
757 | |
758 | strncpy(path, root_path, PATH_MAX-1); |
759 | path_len = strlen(path); |
760 | path[path_len] = '/'; |
761 | path_len++; |
762 | path_ptr = path + path_len; |
763 | |
3865ea09 |
764 | strncpy(rel_path, relative_path, PATH_MAX-1); |
765 | rel_path_len = strlen(rel_path); |
766 | rel_path[rel_path_len] = '/'; |
767 | rel_path_len++; |
768 | rel_path_ptr = rel_path + rel_path_len; |
769 | |
3aee1200 |
770 | while((entry = readdir(dir)) != NULL) { |
771 | |
772 | if(entry->d_name[0] == '.') continue; |
773 | |
774 | strncpy(path_ptr, entry->d_name, PATH_MAX - path_len); |
3865ea09 |
775 | strncpy(rel_path_ptr, entry->d_name, PATH_MAX - rel_path_len); |
3aee1200 |
776 | |
777 | ret = stat(path, &stat_buf); |
778 | if(ret == -1) { |
779 | perror(path); |
780 | continue; |
781 | } |
782 | |
783 | g_debug("Tracefile file or directory : %s\n", path); |
784 | |
74a588bb |
785 | if(strcmp(rel_path, "/eventdefs") == 0) continue; |
786 | |
3aee1200 |
787 | if(S_ISDIR(stat_buf.st_mode)) { |
788 | |
789 | g_debug("Entering subdirectory...\n"); |
3865ea09 |
790 | ret = open_tracefiles(trace, path, rel_path); |
3aee1200 |
791 | if(ret < 0) continue; |
792 | } else if(S_ISREG(stat_buf.st_mode)) { |
3aee1200 |
793 | GQuark name; |
794 | guint num; |
795 | GArray *group; |
3aee1200 |
796 | |
3865ea09 |
797 | if(get_tracefile_name_number(rel_path, &name, &num)) |
3aee1200 |
798 | continue; /* invalid name */ |
3865ea09 |
799 | |
cb03932a |
800 | g_debug("Opening file.\n"); |
801 | if(ltt_tracefile_open(trace, path, &tmp_tf)) { |
802 | g_info("Error opening tracefile %s", path); |
803 | |
804 | continue; /* error opening the tracefile : bad magic number ? */ |
805 | } |
806 | |
3865ea09 |
807 | g_debug("Tracefile name is %s and number is %u", |
808 | g_quark_to_string(name), num); |
809 | |
cb03932a |
810 | tmp_tf.cpu_online = 1; |
811 | tmp_tf.cpu_num = num; |
d3d34f49 |
812 | tmp_tf.name = name; |
cb03932a |
813 | |
3865ea09 |
814 | group = g_datalist_id_get_data(&trace->tracefiles, name); |
3aee1200 |
815 | if(group == NULL) { |
816 | /* Elements are automatically cleared when the array is allocated. |
817 | * It makes the cpu_online variable set to 0 : cpu offline, by default. |
818 | */ |
819 | group = g_array_sized_new (FALSE, TRUE, sizeof(LttTracefile), 10); |
3865ea09 |
820 | g_datalist_id_set_data_full(&trace->tracefiles, name, |
3aee1200 |
821 | group, ltt_tracefile_group_destroy); |
822 | } |
cb03932a |
823 | |
3aee1200 |
824 | /* Add the per cpu tracefile to the named group */ |
825 | unsigned int old_len = group->len; |
826 | if(num+1 > old_len) |
827 | group = g_array_set_size(group, num+1); |
cb03932a |
828 | g_array_index (group, LttTracefile, num) = tmp_tf; |
3aee1200 |
829 | |
3aee1200 |
830 | } |
831 | } |
832 | |
833 | closedir(dir); |
834 | |
835 | return 0; |
f7afe191 |
836 | } |
837 | |
3aee1200 |
838 | /* ltt_get_facility_description |
839 | * |
29e7c5b3 |
840 | * Opens the file corresponding to the requested facility (identified by fac_id |
3aee1200 |
841 | * and checksum). |
842 | * |
843 | * The name searched is : %trace root%/eventdefs/facname_checksum.xml |
844 | * |
845 | * Returns 0 on success, or 1 on failure. |
846 | */ |
847 | |
848 | static int ltt_get_facility_description(LttFacility *f, |
849 | LttTrace *t, |
850 | LttTracefile *fac_tf) |
6cd62ccf |
851 | { |
3aee1200 |
852 | char desc_file_name[PATH_MAX]; |
853 | const gchar *text; |
854 | guint textlen; |
855 | gint err; |
3aee1200 |
856 | |
857 | text = g_quark_to_string(t->pathname); |
858 | textlen = strlen(text); |
859 | |
860 | if(textlen >= PATH_MAX) goto name_error; |
861 | strcpy(desc_file_name, text); |
862 | |
863 | text = "/eventdefs/"; |
864 | textlen+=strlen(text); |
865 | if(textlen >= PATH_MAX) goto name_error; |
866 | strcat(desc_file_name, text); |
867 | |
868 | text = g_quark_to_string(f->name); |
869 | textlen+=strlen(text); |
870 | if(textlen >= PATH_MAX) goto name_error; |
871 | strcat(desc_file_name, text); |
29e7c5b3 |
872 | #if 0 |
3aee1200 |
873 | text = "_"; |
874 | textlen+=strlen(text); |
875 | if(textlen >= PATH_MAX) goto name_error; |
876 | strcat(desc_file_name, text); |
963b5f2d |
877 | |
3aee1200 |
878 | err = snprintf(desc_file_name+textlen, PATH_MAX-textlen-1, |
879 | "%u", f->checksum); |
d2083cab |
880 | if(err < 0) goto name_error; |
3aee1200 |
881 | |
882 | textlen=strlen(desc_file_name); |
883 | |
29e7c5b3 |
884 | #endif //0 |
3aee1200 |
885 | text = ".xml"; |
886 | textlen+=strlen(text); |
887 | if(textlen >= PATH_MAX) goto name_error; |
888 | strcat(desc_file_name, text); |
29e7c5b3 |
889 | |
3aee1200 |
890 | err = ltt_facility_open(f, t, desc_file_name); |
891 | if(err) goto facility_error; |
3aee1200 |
892 | |
893 | return 0; |
894 | |
895 | facility_error: |
896 | name_error: |
897 | return 1; |
898 | } |
899 | |
900 | static void ltt_fac_ids_destroy(gpointer data) |
901 | { |
902 | GArray *fac_ids = (GArray *)data; |
963b5f2d |
903 | |
3aee1200 |
904 | g_array_free(fac_ids, TRUE); |
905 | } |
906 | |
907 | |
908 | /* Presumes the tracefile is already seeked at the beginning. It makes sense, |
909 | * because it must be done just after the opening */ |
910 | static int ltt_process_facility_tracefile(LttTracefile *tf) |
911 | { |
912 | int err; |
913 | LttFacility *fac; |
914 | GArray *fac_ids; |
cb03932a |
915 | guint i; |
916 | LttEventType *et; |
3aee1200 |
917 | |
918 | while(1) { |
919 | err = ltt_tracefile_read_seek(tf); |
920 | if(err == EPERM) goto seek_error; |
921 | else if(err == ERANGE) break; /* End of tracefile */ |
922 | |
923 | err = ltt_tracefile_read_update_event(tf); |
924 | if(err) goto update_error; |
925 | |
926 | /* We are on a facility load/or facility unload/ or heartbeat event */ |
927 | /* The rules are : |
928 | * * facility 0 is hardcoded : this is the core facility. It will be shown |
929 | * in the facility array though, and is shown as "loaded builtin" in the |
930 | * trace. |
931 | * It contains event : |
932 | * 0 : facility load |
933 | * 1 : facility unload |
934 | * 2 : state dump facility load |
d2083cab |
935 | * 3 : heartbeat |
3aee1200 |
936 | */ |
d2083cab |
937 | if(tf->event.facility_id != LTT_FACILITY_CORE) { |
938 | /* Should only contain core facility */ |
3aee1200 |
939 | g_warning("Error in processing facility file %s, " |
940 | "should not contain facility id %u.", g_quark_to_string(tf->name), |
941 | tf->event.facility_id); |
942 | err = EPERM; |
943 | goto fac_id_error; |
d2083cab |
944 | } else { |
3aee1200 |
945 | |
946 | struct LttFacilityLoad *fac_load_data; |
b77d1b57 |
947 | struct LttStateDumpFacilityLoad *fac_state_dump_load_data; |
3aee1200 |
948 | char *fac_name; |
949 | |
950 | // FIXME align |
951 | switch((enum ltt_core_events)tf->event.event_id) { |
952 | case LTT_EVENT_FACILITY_LOAD: |
b77d1b57 |
953 | fac_name = (char*)(tf->event.data); |
d2083cab |
954 | g_debug("Doing LTT_EVENT_FACILITY_LOAD of facility %s", |
955 | fac_name); |
3aee1200 |
956 | fac_load_data = |
b77d1b57 |
957 | (struct LttFacilityLoad *) |
958 | (tf->event.data + strlen(fac_name) + 1); |
3aee1200 |
959 | fac = &g_array_index (tf->trace->facilities_by_num, LttFacility, |
960 | ltt_get_uint32(LTT_GET_BO(tf), &fac_load_data->id)); |
950683f4 |
961 | /* facility may already exist if trace is paused/unpaused */ |
962 | if(fac->exists) continue; |
3aee1200 |
963 | fac->name = g_quark_from_string(fac_name); |
964 | fac->checksum = ltt_get_uint32(LTT_GET_BO(tf), |
965 | &fac_load_data->checksum); |
966 | fac->id = ltt_get_uint32(LTT_GET_BO(tf), &fac_load_data->id); |
967 | fac->pointer_size = ltt_get_uint32(LTT_GET_BO(tf), |
968 | &fac_load_data->pointer_size); |
f104d082 |
969 | fac->int_size = ltt_get_uint32(LTT_GET_BO(tf), |
970 | &fac_load_data->int_size); |
cb03932a |
971 | fac->long_size = ltt_get_uint32(LTT_GET_BO(tf), |
972 | &fac_load_data->long_size); |
eed2ef37 |
973 | fac->size_t_size = ltt_get_uint32(LTT_GET_BO(tf), |
3aee1200 |
974 | &fac_load_data->size_t_size); |
975 | fac->alignment = ltt_get_uint32(LTT_GET_BO(tf), |
976 | &fac_load_data->alignment); |
977 | |
978 | if(ltt_get_facility_description(fac, tf->trace, tf)) |
cb03932a |
979 | continue; /* error opening description */ |
3aee1200 |
980 | |
981 | fac->trace = tf->trace; |
cb03932a |
982 | |
983 | /* Preset the field offsets */ |
984 | for(i=0; i<fac->events->len; i++){ |
985 | et = &g_array_index(fac->events, LttEventType, i); |
f104d082 |
986 | precompute_offsets(tf, et); |
cb03932a |
987 | } |
988 | |
3aee1200 |
989 | fac->exists = 1; |
990 | |
77175651 |
991 | fac_ids = g_datalist_id_get_data(&tf->trace->facilities_by_name, |
992 | fac->name); |
3aee1200 |
993 | if(fac_ids == NULL) { |
994 | fac_ids = g_array_sized_new (FALSE, TRUE, sizeof(guint), 1); |
995 | g_datalist_id_set_data_full(&tf->trace->facilities_by_name, |
996 | fac->name, |
997 | fac_ids, ltt_fac_ids_destroy); |
998 | } |
999 | g_array_append_val(fac_ids, fac->id); |
1000 | |
1001 | break; |
1002 | case LTT_EVENT_FACILITY_UNLOAD: |
d2083cab |
1003 | g_debug("Doing LTT_EVENT_FACILITY_UNLOAD"); |
3aee1200 |
1004 | /* We don't care about unload : facilities ID are valid for the whole |
1005 | * trace. They simply won't be used after the unload. */ |
1006 | break; |
1007 | case LTT_EVENT_STATE_DUMP_FACILITY_LOAD: |
b77d1b57 |
1008 | fac_name = (char*)(tf->event.data); |
d2083cab |
1009 | g_debug("Doing LTT_EVENT_STATE_DUMP_FACILITY_LOAD of facility %s", |
1010 | fac_name); |
b77d1b57 |
1011 | fac_state_dump_load_data = |
d2083cab |
1012 | (struct LttStateDumpFacilityLoad *) |
b77d1b57 |
1013 | (tf->event.data + strlen(fac_name) + 1); |
3aee1200 |
1014 | fac = &g_array_index (tf->trace->facilities_by_num, LttFacility, |
b77d1b57 |
1015 | ltt_get_uint32(LTT_GET_BO(tf), &fac_state_dump_load_data->id)); |
950683f4 |
1016 | /* facility may already exist if trace is paused/unpaused */ |
1017 | if(fac->exists) continue; |
3aee1200 |
1018 | fac->name = g_quark_from_string(fac_name); |
1019 | fac->checksum = ltt_get_uint32(LTT_GET_BO(tf), |
d2083cab |
1020 | &fac_state_dump_load_data->checksum); |
ad34d116 |
1021 | fac->id = ltt_get_uint32(LTT_GET_BO(tf), |
1022 | &fac_state_dump_load_data->id); |
3aee1200 |
1023 | fac->pointer_size = ltt_get_uint32(LTT_GET_BO(tf), |
d2083cab |
1024 | &fac_state_dump_load_data->pointer_size); |
f104d082 |
1025 | fac->int_size = ltt_get_uint32(LTT_GET_BO(tf), |
1026 | &fac_state_dump_load_data->int_size); |
cb03932a |
1027 | fac->long_size = ltt_get_uint32(LTT_GET_BO(tf), |
1028 | &fac_state_dump_load_data->long_size); |
eed2ef37 |
1029 | fac->size_t_size = ltt_get_uint32(LTT_GET_BO(tf), |
d2083cab |
1030 | &fac_state_dump_load_data->size_t_size); |
3aee1200 |
1031 | fac->alignment = ltt_get_uint32(LTT_GET_BO(tf), |
d2083cab |
1032 | &fac_state_dump_load_data->alignment); |
3aee1200 |
1033 | if(ltt_get_facility_description(fac, tf->trace, tf)) |
cb03932a |
1034 | continue; /* error opening description */ |
3aee1200 |
1035 | |
1036 | fac->trace = tf->trace; |
1037 | |
cb03932a |
1038 | /* Preset the field offsets */ |
1039 | for(i=0; i<fac->events->len; i++){ |
1040 | et = &g_array_index(fac->events, LttEventType, i); |
f104d082 |
1041 | precompute_offsets(tf, et); |
cb03932a |
1042 | } |
1043 | |
3aee1200 |
1044 | fac->exists = 1; |
1045 | |
1046 | fac_ids = g_datalist_id_get_data(&tf->trace->facilities_by_name, |
1047 | fac->name); |
1048 | if(fac_ids == NULL) { |
1049 | fac_ids = g_array_sized_new (FALSE, TRUE, sizeof(guint), 1); |
1050 | g_datalist_id_set_data_full(&tf->trace->facilities_by_name, |
1051 | fac->name, |
1052 | fac_ids, ltt_fac_ids_destroy); |
1053 | } |
1054 | g_array_append_val(fac_ids, fac->id); |
1055 | |
1056 | break; |
1057 | case LTT_EVENT_HEARTBEAT: |
1058 | break; |
1059 | default: |
1060 | g_warning("Error in processing facility file %s, " |
1061 | "unknown event id %hhu in core facility.", |
1062 | g_quark_to_string(tf->name), |
1063 | tf->event.event_id); |
1064 | err = EPERM; |
1065 | goto event_id_error; |
1066 | } |
1067 | } |
963b5f2d |
1068 | } |
3aee1200 |
1069 | return 0; |
963b5f2d |
1070 | |
3aee1200 |
1071 | /* Error handling */ |
3aee1200 |
1072 | event_id_error: |
1073 | fac_id_error: |
1074 | update_error: |
1075 | seek_error: |
d2083cab |
1076 | g_warning("An error occured in facility tracefile parsing"); |
3aee1200 |
1077 | return err; |
6cd62ccf |
1078 | } |
1079 | |
963b5f2d |
1080 | |
3aee1200 |
1081 | LttTrace *ltt_trace_open(const gchar *pathname) |
1082 | { |
1083 | gchar abs_path[PATH_MAX]; |
1084 | LttTrace * t; |
1085 | LttTracefile *tf; |
1086 | GArray *group; |
b56dcdf2 |
1087 | int i, ret; |
16fcbb80 |
1088 | struct ltt_block_start_header *header; |
b56dcdf2 |
1089 | DIR *dir; |
1090 | struct dirent *entry; |
1091 | guint control_found = 0; |
1092 | guint eventdefs_found = 0; |
1093 | struct stat stat_buf; |
1094 | gchar path[PATH_MAX]; |
3aee1200 |
1095 | |
1096 | t = g_new(LttTrace, 1); |
1097 | if(!t) goto alloc_error; |
1098 | |
1099 | get_absolute_pathname(pathname, abs_path); |
1100 | t->pathname = g_quark_from_string(abs_path); |
1101 | |
3aee1200 |
1102 | g_datalist_init(&t->tracefiles); |
b56dcdf2 |
1103 | |
1104 | /* Test to see if it looks like a trace */ |
1105 | dir = opendir(abs_path); |
1106 | if(dir == NULL) { |
1107 | perror(abs_path); |
1108 | goto open_error; |
1109 | } |
1110 | while((entry = readdir(dir)) != NULL) { |
1111 | strcpy(path, abs_path); |
1112 | strcat(path, "/"); |
1113 | strcat(path, entry->d_name); |
1114 | ret = stat(path, &stat_buf); |
1115 | if(ret == -1) { |
1116 | perror(path); |
1117 | continue; |
1118 | } |
1119 | if(S_ISDIR(stat_buf.st_mode)) { |
1120 | if(strcmp(entry->d_name, "control") == 0) { |
1121 | control_found = 1; |
1122 | } |
1123 | if(strcmp(entry->d_name, "eventdefs") == 0) { |
1124 | eventdefs_found = 1; |
1125 | } |
1126 | } |
1127 | } |
1128 | closedir(dir); |
1129 | |
1130 | if(!control_found || !eventdefs_found) goto find_error; |
1131 | |
1132 | /* Open all the tracefiles */ |
e45551ac |
1133 | if(open_tracefiles(t, abs_path, "")) { |
1134 | g_warning("Error opening tracefile %s", abs_path); |
b56dcdf2 |
1135 | goto find_error; |
e45551ac |
1136 | } |
3aee1200 |
1137 | |
1138 | /* Prepare the facilities containers : array and mapping */ |
1139 | /* Array is zeroed : the "exists" field is set to false by default */ |
1140 | t->facilities_by_num = g_array_sized_new (FALSE, |
1141 | TRUE, sizeof(LttFacility), |
1142 | NUM_FACILITIES); |
1143 | t->facilities_by_num = g_array_set_size(t->facilities_by_num, NUM_FACILITIES); |
1144 | |
1145 | g_datalist_init(&t->facilities_by_name); |
1146 | |
1147 | /* Parse each trace control/facilitiesN files : get runtime fac. info */ |
1148 | group = g_datalist_id_get_data(&t->tracefiles, LTT_TRACEFILE_NAME_FACILITIES); |
1149 | if(group == NULL) { |
1150 | g_error("Trace %s has no facility tracefile", abs_path); |
3865ea09 |
1151 | g_assert(0); |
3aee1200 |
1152 | goto facilities_error; |
1153 | } |
1154 | |
16fcbb80 |
1155 | /* Get the trace information for the control/facility 0 tracefile */ |
1156 | g_assert(group->len > 0); |
1157 | tf = &g_array_index (group, LttTracefile, 0); |
1158 | header = (struct ltt_block_start_header*)tf->buffer.head; |
51551c6f |
1159 | g_assert(parse_trace_header(header->trace, |
1160 | tf, t) == 0); |
b56dcdf2 |
1161 | |
1162 | t->num_cpu = group->len; |
16fcbb80 |
1163 | |
3aee1200 |
1164 | for(i=0; i<group->len; i++) { |
1165 | tf = &g_array_index (group, LttTracefile, i); |
1166 | if(ltt_process_facility_tracefile(tf)) |
1167 | goto facilities_error; |
1168 | } |
3aee1200 |
1169 | |
1170 | return t; |
1171 | |
1172 | /* Error handling */ |
1173 | facilities_error: |
1174 | g_datalist_clear(&t->facilities_by_name); |
1175 | g_array_free(t->facilities_by_num, TRUE); |
b56dcdf2 |
1176 | find_error: |
3aee1200 |
1177 | g_datalist_clear(&t->tracefiles); |
b56dcdf2 |
1178 | open_error: |
3aee1200 |
1179 | g_free(t); |
1180 | alloc_error: |
1181 | return NULL; |
1182 | |
1183 | } |
6cd62ccf |
1184 | |
826f1ab2 |
1185 | GQuark ltt_trace_name(const LttTrace *t) |
6cd62ccf |
1186 | { |
3aee1200 |
1187 | return t->pathname; |
6cd62ccf |
1188 | } |
1189 | |
6cd62ccf |
1190 | |
3aee1200 |
1191 | /****************************************************************************** |
1192 | * When we copy a trace, we want all the opening actions to happen again : |
1193 | * the trace will be reopened and totally independant from the original. |
1194 | * That's why we call ltt_trace_open. |
1195 | *****************************************************************************/ |
1196 | LttTrace *ltt_trace_copy(LttTrace *self) |
963b5f2d |
1197 | { |
3aee1200 |
1198 | return ltt_trace_open(g_quark_to_string(self->pathname)); |
963b5f2d |
1199 | } |
1200 | |
3aee1200 |
1201 | void ltt_trace_close(LttTrace *t) |
6cd62ccf |
1202 | { |
cb03932a |
1203 | guint i; |
1204 | LttFacility *fac; |
1205 | |
1206 | for(i=0; i<t->facilities_by_num->len; i++) { |
1207 | fac = &g_array_index (t->facilities_by_num, LttFacility, i); |
1208 | if(fac->exists) |
1209 | ltt_facility_close(fac); |
1210 | } |
1211 | |
3aee1200 |
1212 | g_datalist_clear(&t->facilities_by_name); |
1213 | g_array_free(t->facilities_by_num, TRUE); |
1214 | g_datalist_clear(&t->tracefiles); |
1215 | g_free(t); |
6cd62ccf |
1216 | } |
1217 | |
3aee1200 |
1218 | |
6cd62ccf |
1219 | /***************************************************************************** |
3aee1200 |
1220 | *Get the system description of the trace |
6cd62ccf |
1221 | ****************************************************************************/ |
1222 | |
3aee1200 |
1223 | LttFacility *ltt_trace_facility_by_id(LttTrace *t, guint8 id) |
6cd62ccf |
1224 | { |
3aee1200 |
1225 | g_assert(id < t->facilities_by_num->len); |
1226 | return &g_array_index(t->facilities_by_num, LttFacility, id); |
1227 | } |
1228 | |
1229 | /* ltt_trace_facility_get_by_name |
1230 | * |
1231 | * Returns the GArray of facility indexes. All the fac_ids that matches the |
1232 | * requested facility name. |
1233 | * |
1234 | * If name is not found, returns NULL. |
1235 | */ |
1236 | GArray *ltt_trace_facility_get_by_name(LttTrace *t, GQuark name) |
1237 | { |
1238 | return g_datalist_id_get_data(&t->facilities_by_name, name); |
6cd62ccf |
1239 | } |
1240 | |
1241 | /***************************************************************************** |
963b5f2d |
1242 | * Functions to discover all the event types in the trace |
6cd62ccf |
1243 | ****************************************************************************/ |
1244 | |
3aee1200 |
1245 | #if 0 |
963b5f2d |
1246 | unsigned ltt_trace_eventtype_number(LttTrace *t) |
6cd62ccf |
1247 | { |
8d1e6362 |
1248 | unsigned int i; |
963b5f2d |
1249 | unsigned count = 0; |
dc1cad90 |
1250 | unsigned int num = t->facility_number; |
963b5f2d |
1251 | LttFacility * f; |
dc1cad90 |
1252 | |
1253 | for(i=0;i<num;i++){ |
963b5f2d |
1254 | f = (LttFacility*)g_ptr_array_index(t->facilities, i); |
1255 | count += f->event_number; |
1256 | } |
1257 | return count; |
6cd62ccf |
1258 | } |
3aee1200 |
1259 | #endif //0 |
6cd62ccf |
1260 | |
3aee1200 |
1261 | #if 0 |
1262 | //use an iteration on all the trace facilities, and inside iteration on all the |
1263 | //event types in each facilities instead. |
963b5f2d |
1264 | LttEventType *ltt_trace_eventtype_get(LttTrace *t, unsigned evId) |
6cd62ccf |
1265 | { |
6e8c19d4 |
1266 | LttEventType *event_type; |
1267 | |
963b5f2d |
1268 | LttFacility * f; |
1269 | f = ltt_trace_facility_by_id(t,evId); |
6e8c19d4 |
1270 | |
1271 | if(unlikely(!f)) event_type = NULL; |
1272 | else event_type = f->events[evId - f->base_id]; |
1273 | |
1274 | return event_type; |
6cd62ccf |
1275 | } |
3aee1200 |
1276 | #endif //0 |
6cd62ccf |
1277 | |
3aee1200 |
1278 | #if 0 |
6cd62ccf |
1279 | /***************************************************************************** |
3aee1200 |
1280 | * ltt_trace_find_tracefile |
1281 | * |
1282 | * Find a tracefile by name and index in the group. |
1283 | * |
1284 | * Returns a pointer to the tracefiles, else NULL. |
6cd62ccf |
1285 | ****************************************************************************/ |
6cd62ccf |
1286 | |
3aee1200 |
1287 | LttTracefile *ltt_trace_find_tracefile(LttTrace *t, const gchar *name) |
6cd62ccf |
1288 | { |
6cd62ccf |
1289 | } |
3aee1200 |
1290 | #endif //0 |
6cd62ccf |
1291 | |
1292 | /***************************************************************************** |
3aee1200 |
1293 | * Get the start time and end time of the trace |
6cd62ccf |
1294 | ****************************************************************************/ |
1295 | |
3aee1200 |
1296 | static void ltt_tracefile_time_span_get(LttTracefile *tf, |
1297 | LttTime *start, LttTime *end) |
6cd62ccf |
1298 | { |
3aee1200 |
1299 | int err; |
6cd62ccf |
1300 | |
3aee1200 |
1301 | err = map_block(tf, 0); |
1302 | if(unlikely(err)) { |
1303 | g_error("Can not map block"); |
1304 | *start = ltt_time_infinite; |
1305 | } else |
1306 | *start = tf->buffer.begin.timestamp; |
1307 | |
1308 | err = map_block(tf, tf->num_blocks - 1); /* Last block */ |
1309 | if(unlikely(err)) { |
1310 | g_error("Can not map block"); |
1311 | *end = ltt_time_zero; |
1312 | } else |
1313 | *end = tf->buffer.end.timestamp; |
6cd62ccf |
1314 | } |
1315 | |
3aee1200 |
1316 | struct tracefile_time_span_get_args { |
1317 | LttTrace *t; |
1318 | LttTime *start; |
1319 | LttTime *end; |
1320 | }; |
963b5f2d |
1321 | |
3aee1200 |
1322 | static void group_time_span_get(GQuark name, gpointer data, gpointer user_data) |
963b5f2d |
1323 | { |
3aee1200 |
1324 | struct tracefile_time_span_get_args *args = |
1325 | (struct tracefile_time_span_get_args*)user_data; |
1326 | |
1327 | GArray *group = (GArray *)data; |
1328 | int i; |
1329 | LttTracefile *tf; |
1330 | LttTime tmp_start; |
1331 | LttTime tmp_end; |
1332 | |
1333 | for(i=0; i<group->len; i++) { |
1334 | tf = &g_array_index (group, LttTracefile, i); |
1335 | if(tf->cpu_online) { |
1336 | ltt_tracefile_time_span_get(tf, &tmp_start, &tmp_end); |
1337 | if(ltt_time_compare(*args->start, tmp_start)>0) *args->start = tmp_start; |
1338 | if(ltt_time_compare(*args->end, tmp_end)<0) *args->end = tmp_end; |
1339 | } |
1340 | } |
6cd62ccf |
1341 | } |
1342 | |
487ad181 |
1343 | void ltt_trace_time_span_get(LttTrace *t, LttTime *start, LttTime *end) |
1344 | { |
3aee1200 |
1345 | LttTime min_start = ltt_time_infinite; |
1346 | LttTime max_end = ltt_time_zero; |
1347 | struct tracefile_time_span_get_args args = { t, &min_start, &max_end }; |
487ad181 |
1348 | |
3aee1200 |
1349 | g_datalist_foreach(&t->tracefiles, &group_time_span_get, &args); |
1350 | |
1351 | if(start != NULL) *start = min_start; |
1352 | if(end != NULL) *end = max_end; |
1353 | |
487ad181 |
1354 | } |
1355 | |
1356 | |
6cd62ccf |
1357 | /***************************************************************************** |
963b5f2d |
1358 | *Get the name of a tracefile |
6cd62ccf |
1359 | ****************************************************************************/ |
1360 | |
348c6ba8 |
1361 | GQuark ltt_tracefile_name(const LttTracefile *tf) |
6cd62ccf |
1362 | { |
963b5f2d |
1363 | return tf->name; |
6cd62ccf |
1364 | } |
1365 | |
348c6ba8 |
1366 | GQuark ltt_tracefile_long_name(const LttTracefile *tf) |
1367 | { |
1368 | return tf->long_name; |
1369 | } |
1370 | |
1371 | |
d3d34f49 |
1372 | |
1373 | guint ltt_tracefile_num(LttTracefile *tf) |
1374 | { |
1375 | return tf->cpu_num; |
1376 | } |
1377 | |
80da81ad |
1378 | /***************************************************************************** |
1379 | * Get the number of blocks in the tracefile |
1380 | ****************************************************************************/ |
1381 | |
3aee1200 |
1382 | guint ltt_tracefile_block_number(LttTracefile *tf) |
80da81ad |
1383 | { |
3aee1200 |
1384 | return tf->num_blocks; |
80da81ad |
1385 | } |
1386 | |
caf7a67a |
1387 | |
3aee1200 |
1388 | /* Seek to the first event in a tracefile that has a time equal or greater than |
1389 | * the time passed in parameter. |
1390 | * |
1391 | * If the time parameter is outside the tracefile time span, seek to the first |
27304273 |
1392 | * event or if after, return ERANGE. |
3aee1200 |
1393 | * |
1394 | * If the time parameter is before the first event, we have to seek specially to |
1395 | * there. |
1396 | * |
27304273 |
1397 | * If the time is after the end of the trace, return ERANGE. |
3aee1200 |
1398 | * |
1399 | * Do a binary search to find the right block, then a sequential search in the |
1400 | * block to find the event. |
1401 | * |
1402 | * In the special case where the time requested fits inside a block that has no |
1403 | * event corresponding to the requested time, the first event of the next block |
1404 | * will be seeked. |
1405 | * |
1406 | * IMPORTANT NOTE : // FIXME everywhere... |
1407 | * |
1408 | * You MUST NOT do a ltt_tracefile_read right after a ltt_tracefile_seek_time : |
1409 | * you will jump over an event if you do. |
1410 | * |
1411 | * Return value : 0 : no error, the tf->event can be used |
27304273 |
1412 | * ERANGE : time if after the last event of the trace |
3aee1200 |
1413 | * otherwise : this is an error. |
1414 | * |
1415 | * */ |
1416 | |
1417 | int ltt_tracefile_seek_time(LttTracefile *tf, LttTime time) |
1418 | { |
1419 | int ret = 0; |
1420 | int err; |
1421 | unsigned int block_num, high, low; |
1422 | |
1423 | /* seek at the beginning of trace */ |
1424 | err = map_block(tf, 0); /* First block */ |
1425 | if(unlikely(err)) { |
1426 | g_error("Can not map block"); |
1427 | goto fail; |
caf7a67a |
1428 | } |
1429 | |
3aee1200 |
1430 | /* If the time is lower or equal the beginning of the trace, |
1431 | * go to the first event. */ |
1432 | if(ltt_time_compare(time, tf->buffer.begin.timestamp) <= 0) { |
1433 | ret = ltt_tracefile_read(tf); |
27304273 |
1434 | if(ret == ERANGE) goto range; |
1435 | else if (ret) goto fail; |
3aee1200 |
1436 | goto found; /* There is either no event in the trace or the event points |
1437 | to the first event in the trace */ |
1438 | } |
caf7a67a |
1439 | |
3aee1200 |
1440 | err = map_block(tf, tf->num_blocks - 1); /* Last block */ |
1441 | if(unlikely(err)) { |
1442 | g_error("Can not map block"); |
1443 | goto fail; |
caf7a67a |
1444 | } |
6cd62ccf |
1445 | |
27304273 |
1446 | /* If the time is after the end of the trace, return ERANGE. */ |
1447 | if(ltt_time_compare(time, tf->buffer.end.timestamp) > 0) { |
1448 | goto range; |
3aee1200 |
1449 | } |
62e55dd6 |
1450 | |
3aee1200 |
1451 | /* Binary search the block */ |
1452 | high = tf->num_blocks - 1; |
1453 | low = 0; |
1454 | |
1455 | while(1) { |
1456 | block_num = ((high-low) / 2) + low; |
1457 | |
1458 | err = map_block(tf, block_num); |
1459 | if(unlikely(err)) { |
1460 | g_error("Can not map block"); |
1461 | goto fail; |
db55eaae |
1462 | } |
3aee1200 |
1463 | if(high == low) { |
1464 | /* We cannot divide anymore : this is what would happen if the time |
1465 | * requested was exactly between two consecutive buffers'end and start |
1466 | * timestamps. This is also what would happend if we didn't deal with out |
1467 | * of span cases prior in this function. */ |
1468 | /* The event is right in the buffer! |
1469 | * (or in the next buffer first event) */ |
1470 | while(1) { |
1471 | ret = ltt_tracefile_read(tf); |
27304273 |
1472 | if(ret == ERANGE) goto range; /* ERANGE or EPERM */ |
3aee1200 |
1473 | else if(ret) goto fail; |
1474 | |
d9e13a0f |
1475 | if(ltt_time_compare(time, tf->event.event_time) <= 0) |
e45551ac |
1476 | goto found; |
3aee1200 |
1477 | } |
1478 | |
27304273 |
1479 | } else if(ltt_time_compare(time, tf->buffer.begin.timestamp) < 0) { |
3aee1200 |
1480 | /* go to lower part */ |
b1369bef |
1481 | high = block_num - 1; |
3aee1200 |
1482 | } else if(ltt_time_compare(time, tf->buffer.end.timestamp) > 0) { |
1483 | /* go to higher part */ |
b1369bef |
1484 | low = block_num + 1; |
3aee1200 |
1485 | } else {/* The event is right in the buffer! |
1486 | (or in the next buffer first event) */ |
1487 | while(1) { |
27304273 |
1488 | ret = ltt_tracefile_read(tf); |
1489 | if(ret == ERANGE) goto range; /* ERANGE or EPERM */ |
3aee1200 |
1490 | else if(ret) goto fail; |
1491 | |
d9e13a0f |
1492 | if(ltt_time_compare(time, tf->event.event_time) <= 0) |
3aee1200 |
1493 | break; |
6cd62ccf |
1494 | } |
3aee1200 |
1495 | goto found; |
6cd62ccf |
1496 | } |
6cd62ccf |
1497 | } |
3aee1200 |
1498 | |
1499 | found: |
1500 | return 0; |
27304273 |
1501 | range: |
1502 | return ERANGE; |
3aee1200 |
1503 | |
1504 | /* Error handling */ |
1505 | fail: |
1506 | g_error("ltt_tracefile_seek_time failed on tracefile %s", |
1507 | g_quark_to_string(tf->name)); |
1508 | return EPERM; |
6cd62ccf |
1509 | } |
1510 | |
80da81ad |
1511 | |
3aee1200 |
1512 | int ltt_tracefile_seek_position(LttTracefile *tf, const LttEventPosition *ep) { |
80da81ad |
1513 | |
3aee1200 |
1514 | int err; |
1515 | |
1516 | if(ep->tracefile != tf) { |
1517 | goto fail; |
80da81ad |
1518 | } |
1519 | |
3aee1200 |
1520 | err = map_block(tf, ep->block); |
1521 | if(unlikely(err)) { |
1522 | g_error("Can not map block"); |
1523 | goto fail; |
1524 | } |
1525 | |
1526 | tf->event.offset = ep->offset; |
18206708 |
1527 | |
3aee1200 |
1528 | err = ltt_tracefile_read_update_event(tf); |
1529 | if(err) goto fail; |
1530 | err = ltt_tracefile_read_op(tf); |
1531 | if(err) goto fail; |
80da81ad |
1532 | |
a0c1f622 |
1533 | return 0; |
3aee1200 |
1534 | |
1535 | fail: |
1536 | g_error("ltt_tracefile_seek_time failed on tracefile %s", |
1537 | g_quark_to_string(tf->name)); |
a0c1f622 |
1538 | return 1; |
3aee1200 |
1539 | } |
1540 | |
1541 | /* Calculate the real event time based on the buffer boundaries */ |
1542 | LttTime ltt_interpolate_time(LttTracefile *tf, LttEvent *event) |
1543 | { |
1544 | LttTime time; |
1545 | |
1546 | g_assert(tf->trace->has_tsc); |
1547 | |
791dffa6 |
1548 | // time = ltt_time_from_uint64( |
1549 | // cycles_2_ns(tf, (guint64)(tf->buffer.tsc - tf->buffer.begin.cycle_count))); |
88612d17 |
1550 | time = ltt_time_from_uint64( |
1551 | (double)(tf->buffer.tsc - tf->trace->start_tsc) * 1000000.0 |
791dffa6 |
1552 | / (double)tf->trace->start_freq); |
1553 | //time = ltt_time_add(tf->buffer.begin.timestamp, time); |
88612d17 |
1554 | time = ltt_time_add(tf->trace->start_time_from_tsc, time); |
3aee1200 |
1555 | |
1556 | return time; |
80da81ad |
1557 | } |
1558 | |
eed2ef37 |
1559 | |
1560 | /* Get the current event of the tracefile : valid until the next read */ |
1561 | LttEvent *ltt_tracefile_get_event(LttTracefile *tf) |
1562 | { |
1563 | return &tf->event; |
1564 | } |
1565 | |
1566 | |
1567 | |
6cd62ccf |
1568 | /***************************************************************************** |
1569 | *Function name |
3aee1200 |
1570 | * ltt_tracefile_read : Read the next event in the tracefile |
6cd62ccf |
1571 | *Input params |
1572 | * t : tracefile |
1573 | *Return value |
3aee1200 |
1574 | * |
1575 | * Returns 0 if an event can be used in tf->event. |
d822520b |
1576 | * Returns ERANGE on end of trace. The event in tf->event still can be used |
1577 | * (if the last block was not empty). |
3aee1200 |
1578 | * Returns EPERM on error. |
1579 | * |
1580 | * This function does make the tracefile event structure point to the event |
1581 | * currently pointed to by the tf->event. |
1582 | * |
1583 | * Note : you must call a ltt_tracefile_seek to the beginning of the trace to |
1584 | * reinitialize it after an error if you want results to be coherent. |
1585 | * It would be the case if a end of trace last buffer has no event : the end |
1586 | * of trace wouldn't be returned, but an error. |
1587 | * We make the assumption there is at least one event per buffer. |
6cd62ccf |
1588 | ****************************************************************************/ |
1589 | |
3aee1200 |
1590 | int ltt_tracefile_read(LttTracefile *tf) |
6cd62ccf |
1591 | { |
963b5f2d |
1592 | int err; |
6cd62ccf |
1593 | |
3aee1200 |
1594 | err = ltt_tracefile_read_seek(tf); |
1595 | if(err) return err; |
1596 | err = ltt_tracefile_read_update_event(tf); |
1597 | if(err) return err; |
1598 | err = ltt_tracefile_read_op(tf); |
1599 | if(err) return err; |
1600 | |
1601 | return 0; |
1602 | } |
1603 | |
1604 | int ltt_tracefile_read_seek(LttTracefile *tf) |
1605 | { |
1606 | int err; |
1607 | |
1608 | /* Get next buffer until we finally have an event, or end of trace */ |
1609 | while(1) { |
1610 | err = ltt_seek_next_event(tf); |
1611 | if(unlikely(err == ENOPROTOOPT)) { |
1612 | return EPERM; |
bdc36259 |
1613 | } |
bdc36259 |
1614 | |
3aee1200 |
1615 | /* Are we at the end of the buffer ? */ |
1616 | if(err == ERANGE) { |
1617 | if(unlikely(tf->buffer.index == tf->num_blocks-1)){ /* end of trace ? */ |
1618 | return ERANGE; |
1619 | } else { |
1620 | /* get next block */ |
1621 | err = map_block(tf, tf->buffer.index + 1); |
1622 | if(unlikely(err)) { |
1623 | g_error("Can not map block"); |
1624 | return EPERM; |
1625 | } |
1626 | } |
1627 | } else break; /* We found an event ! */ |
1628 | } |
2dee981d |
1629 | |
3aee1200 |
1630 | return 0; |
1631 | } |
18206708 |
1632 | |
1633 | |
3aee1200 |
1634 | /* do specific operation on events */ |
1635 | int ltt_tracefile_read_op(LttTracefile *tf) |
1636 | { |
3aee1200 |
1637 | LttEvent *event; |
1638 | |
1639 | event = &tf->event; |
18206708 |
1640 | |
3aee1200 |
1641 | /* do event specific operation */ |
40331ba8 |
1642 | |
3aee1200 |
1643 | /* do something if its an heartbeat event : increment the heartbeat count */ |
1644 | //if(event->facility_id == LTT_FACILITY_CORE) |
1645 | // if(event->event_id == LTT_EVENT_HEARTBEAT) |
1646 | // tf->cur_heart_beat_number++; |
1647 | |
1648 | return 0; |
6cd62ccf |
1649 | } |
1650 | |
6cd62ccf |
1651 | |
3aee1200 |
1652 | /* same as ltt_tracefile_read, but does not seek to the next event nor call |
1653 | * event specific operation. */ |
1654 | int ltt_tracefile_read_update_event(LttTracefile *tf) |
6cd62ccf |
1655 | { |
3aee1200 |
1656 | void * pos; |
1657 | LttEvent *event; |
1658 | |
1659 | event = &tf->event; |
eed2ef37 |
1660 | pos = tf->buffer.head + event->offset; |
3aee1200 |
1661 | |
1662 | /* Read event header */ |
1663 | |
f104d082 |
1664 | /* Align the head */ |
1665 | pos += ltt_align(pos, tf->trace->arch_size, tf->has_alignment); |
3aee1200 |
1666 | |
1667 | if(tf->trace->has_tsc) { |
16fcbb80 |
1668 | if(tf->trace->has_heartbeat) { |
1669 | event->time.timestamp = ltt_get_uint32(LTT_GET_BO(tf), |
1670 | pos); |
1671 | /* 32 bits -> 64 bits tsc */ |
1672 | /* note : still works for seek and non seek cases. */ |
1673 | if(event->time.timestamp < (0xFFFFFFFFULL&tf->buffer.tsc)) { |
1674 | tf->buffer.tsc = ((tf->buffer.tsc&0xFFFFFFFF00000000ULL) |
1675 | + 0x100000000ULL) |
1676 | | (guint64)event->time.timestamp; |
1677 | event->tsc = tf->buffer.tsc; |
1678 | } else { |
1679 | /* no overflow */ |
1680 | tf->buffer.tsc = (tf->buffer.tsc&0xFFFFFFFF00000000ULL) |
1681 | | (guint64)event->time.timestamp; |
1682 | event->tsc = tf->buffer.tsc; |
1683 | } |
1684 | pos += sizeof(guint32); |
3aee1200 |
1685 | } else { |
16fcbb80 |
1686 | event->tsc = ltt_get_uint64(LTT_GET_BO(tf), pos); |
1687 | tf->buffer.tsc = event->tsc; |
1688 | pos += sizeof(guint64); |
3aee1200 |
1689 | } |
16fcbb80 |
1690 | |
3aee1200 |
1691 | event->event_time = ltt_interpolate_time(tf, event); |
3aee1200 |
1692 | } else { |
1693 | event->time.delta.tv_sec = 0; |
1694 | event->time.delta.tv_nsec = ltt_get_uint32(LTT_GET_BO(tf), |
1695 | pos) * NSEC_PER_USEC; |
1696 | tf->buffer.tsc = 0; |
1697 | event->tsc = tf->buffer.tsc; |
1698 | |
1699 | event->event_time = ltt_time_add(tf->buffer.begin.timestamp, |
1700 | event->time.delta); |
1701 | pos += sizeof(guint32); |
1702 | } |
1703 | |
eed2ef37 |
1704 | event->facility_id = *(guint8*)pos; |
3aee1200 |
1705 | pos += sizeof(guint8); |
1706 | |
eed2ef37 |
1707 | event->event_id = *(guint8*)pos; |
3aee1200 |
1708 | pos += sizeof(guint8); |
1709 | |
b77d1b57 |
1710 | event->event_size = ltt_get_uint16(LTT_GET_BO(tf), pos); |
1711 | pos += sizeof(guint16); |
1712 | |
f104d082 |
1713 | /* Align the head */ |
1714 | pos += ltt_align(pos, tf->trace->arch_size, tf->has_alignment); |
1715 | |
3aee1200 |
1716 | event->data = pos; |
1717 | |
77175651 |
1718 | /* get the data size and update the event fields with the current |
1719 | * information */ |
eed2ef37 |
1720 | ltt_update_event_size(tf); |
77175651 |
1721 | |
3aee1200 |
1722 | return 0; |
6cd62ccf |
1723 | } |
1724 | |
507915ee |
1725 | |
6cd62ccf |
1726 | /**************************************************************************** |
1727 | *Function name |
3aee1200 |
1728 | * map_block : map a block from the file |
6cd62ccf |
1729 | *Input Params |
1730 | * lttdes : ltt trace file |
1731 | * whichBlock : the block which will be read |
1732 | *return value |
1733 | * 0 : success |
1734 | * EINVAL : lseek fail |
1735 | * EIO : can not read from the file |
1736 | ****************************************************************************/ |
1737 | |
3aee1200 |
1738 | static gint map_block(LttTracefile * tf, guint block_num) |
6cd62ccf |
1739 | { |
b77d1b57 |
1740 | int page_size = getpagesize(); |
3aee1200 |
1741 | struct ltt_block_start_header *header; |
1742 | |
1743 | g_assert(block_num < tf->num_blocks); |
6cd62ccf |
1744 | |
f628823c |
1745 | if(tf->buffer.head != NULL) { |
1746 | if(munmap(tf->buffer.head, PAGE_ALIGN(tf->buf_size))) { |
1747 | g_warning("unmap size : %u\n", |
1748 | PAGE_ALIGN(tf->buf_size)); |
1749 | perror("munmap error"); |
1750 | g_assert(0); |
1751 | } |
1752 | } |
1753 | |
ac849774 |
1754 | |
3aee1200 |
1755 | /* Multiple of pages aligned head */ |
b77d1b57 |
1756 | tf->buffer.head = mmap(0, |
f628823c |
1757 | PAGE_ALIGN(tf->buf_size), |
b77d1b57 |
1758 | PROT_READ, MAP_PRIVATE, tf->fd, |
f628823c |
1759 | PAGE_ALIGN((off_t)tf->buf_size * (off_t)block_num)); |
3aee1200 |
1760 | |
3865ea09 |
1761 | if(tf->buffer.head == MAP_FAILED) { |
3aee1200 |
1762 | perror("Error in allocating memory for buffer of tracefile"); |
3865ea09 |
1763 | g_assert(0); |
3aee1200 |
1764 | goto map_error; |
6cd62ccf |
1765 | } |
3865ea09 |
1766 | g_assert( ( (guint)tf->buffer.head&(8-1) ) == 0); // make sure it's aligned. |
3aee1200 |
1767 | |
6cd62ccf |
1768 | |
3aee1200 |
1769 | tf->buffer.index = block_num; |
1770 | |
1771 | header = (struct ltt_block_start_header*)tf->buffer.head; |
1772 | |
791dffa6 |
1773 | #if 0 |
986e2a7c |
1774 | tf->buffer.begin.timestamp = ltt_time_add( |
1775 | ltt_time_from_uint64( |
1776 | ltt_get_uint64(LTT_GET_BO(tf), |
1777 | &header->begin.timestamp) |
1778 | - tf->trace->start_monotonic), |
1779 | tf->trace->start_time); |
791dffa6 |
1780 | #endif //0 |
348c6ba8 |
1781 | //g_debug("block %u begin : %lu.%lu", block_num, |
1782 | // tf->buffer.begin.timestamp.tv_sec, tf->buffer.begin.timestamp.tv_nsec); |
3aee1200 |
1783 | tf->buffer.begin.cycle_count = ltt_get_uint64(LTT_GET_BO(tf), |
1784 | &header->begin.cycle_count); |
986e2a7c |
1785 | tf->buffer.begin.freq = ltt_get_uint64(LTT_GET_BO(tf), |
1786 | &header->begin.freq); |
791dffa6 |
1787 | tf->buffer.begin.timestamp = ltt_time_add( |
1788 | ltt_time_from_uint64( |
88612d17 |
1789 | (double)(tf->buffer.begin.cycle_count |
1790 | - tf->trace->start_tsc) * 1000000.0 |
791dffa6 |
1791 | / (double)tf->trace->start_freq), |
88612d17 |
1792 | tf->trace->start_time_from_tsc); |
791dffa6 |
1793 | #if 0 |
1794 | |
986e2a7c |
1795 | tf->buffer.end.timestamp = ltt_time_add( |
1796 | ltt_time_from_uint64( |
1797 | ltt_get_uint64(LTT_GET_BO(tf), |
1798 | &header->end.timestamp) |
1799 | - tf->trace->start_monotonic), |
1800 | tf->trace->start_time); |
791dffa6 |
1801 | #endif //0 |
348c6ba8 |
1802 | //g_debug("block %u end : %lu.%lu", block_num, |
1803 | // tf->buffer.end.timestamp.tv_sec, tf->buffer.end.timestamp.tv_nsec); |
3aee1200 |
1804 | tf->buffer.end.cycle_count = ltt_get_uint64(LTT_GET_BO(tf), |
1805 | &header->end.cycle_count); |
986e2a7c |
1806 | tf->buffer.end.freq = ltt_get_uint64(LTT_GET_BO(tf), |
1807 | &header->end.freq); |
3aee1200 |
1808 | tf->buffer.lost_size = ltt_get_uint32(LTT_GET_BO(tf), |
986e2a7c |
1809 | &header->lost_size); |
791dffa6 |
1810 | tf->buffer.end.timestamp = ltt_time_add( |
1811 | ltt_time_from_uint64( |
88612d17 |
1812 | (double)(tf->buffer.end.cycle_count |
1813 | - tf->trace->start_tsc) * 1000000.0 |
791dffa6 |
1814 | / (double)tf->trace->start_freq), |
88612d17 |
1815 | tf->trace->start_time_from_tsc); |
791dffa6 |
1816 | |
3aee1200 |
1817 | tf->buffer.tsc = tf->buffer.begin.cycle_count; |
1818 | tf->event.tsc = tf->buffer.tsc; |
986e2a7c |
1819 | tf->buffer.freq = tf->buffer.begin.freq; |
3aee1200 |
1820 | |
1821 | /* FIXME |
1822 | * eventually support variable buffer size : will need a partial pre-read of |
1823 | * the headers to create an index when we open the trace... eventually. */ |
f628823c |
1824 | g_assert(tf->buf_size == ltt_get_uint32(LTT_GET_BO(tf), |
3aee1200 |
1825 | &header->buf_size)); |
507915ee |
1826 | |
3aee1200 |
1827 | /* Now that the buffer is mapped, calculate the time interpolation for the |
1828 | * block. */ |
1829 | |
791dffa6 |
1830 | // tf->buffer.nsecs_per_cycle = calc_nsecs_per_cycle(tf); |
1831 | //tf->buffer.cyc2ns_scale = calc_nsecs_per_cycle(tf); |
3aee1200 |
1832 | |
1833 | /* Make the current event point to the beginning of the buffer : |
1834 | * it means that the event read must get the first event. */ |
1835 | tf->event.tracefile = tf; |
1836 | tf->event.block = block_num; |
eed2ef37 |
1837 | tf->event.offset = 0; |
3aee1200 |
1838 | |
1839 | return 0; |
6cd62ccf |
1840 | |
3aee1200 |
1841 | map_error: |
1842 | return -errno; |
40331ba8 |
1843 | |
6cd62ccf |
1844 | } |
1845 | |
77175651 |
1846 | /* It will update the fields offsets too */ |
1847 | void ltt_update_event_size(LttTracefile *tf) |
6cd62ccf |
1848 | { |
f104d082 |
1849 | size_t size = 0; |
3aee1200 |
1850 | |
1851 | /* Specific handling of core events : necessary to read the facility control |
1852 | * tracefile. */ |
77175651 |
1853 | LttFacility *f = ltt_trace_get_facility_by_num(tf->trace, |
1854 | tf->event.facility_id); |
6cd62ccf |
1855 | |
3865ea09 |
1856 | if(likely(tf->event.facility_id == LTT_FACILITY_CORE)) { |
1857 | switch((enum ltt_core_events)tf->event.event_id) { |
1858 | case LTT_EVENT_FACILITY_LOAD: |
b77d1b57 |
1859 | size = strlen((char*)tf->event.data) + 1; |
348c6ba8 |
1860 | //g_debug("Update Event facility load of facility %s", (char*)tf->event.data); |
c4afd5d8 |
1861 | size += sizeof(struct LttFacilityLoad); |
3865ea09 |
1862 | break; |
1863 | case LTT_EVENT_FACILITY_UNLOAD: |
348c6ba8 |
1864 | //g_debug("Update Event facility unload"); |
3865ea09 |
1865 | size = sizeof(struct LttFacilityUnload); |
1866 | break; |
1867 | case LTT_EVENT_STATE_DUMP_FACILITY_LOAD: |
b77d1b57 |
1868 | size = strlen((char*)tf->event.data) + 1; |
348c6ba8 |
1869 | //g_debug("Update Event facility load state dump of facility %s", |
1870 | // (char*)tf->event.data); |
c4afd5d8 |
1871 | size += sizeof(struct LttStateDumpFacilityLoad); |
3865ea09 |
1872 | break; |
1873 | case LTT_EVENT_HEARTBEAT: |
348c6ba8 |
1874 | //g_debug("Update Event heartbeat"); |
3865ea09 |
1875 | size = sizeof(TimeHeartbeat); |
1876 | break; |
1877 | default: |
1878 | g_warning("Error in getting event size : tracefile %s, " |
1879 | "unknown event id %hhu in core facility.", |
1880 | g_quark_to_string(tf->name), |
1881 | tf->event.event_id); |
1882 | goto event_id_error; |
2dee981d |
1883 | |
77175651 |
1884 | } |
3aee1200 |
1885 | } else { |
c4afd5d8 |
1886 | if(!f->exists) { |
1887 | g_error("Unknown facility %hhu (0x%hhx) in tracefile %s", |
1888 | tf->event.facility_id, |
1889 | tf->event.facility_id, |
1890 | g_quark_to_string(tf->name)); |
1891 | goto facility_error; |
1892 | } |
1893 | |
3aee1200 |
1894 | LttEventType *event_type = |
1895 | ltt_facility_eventtype_get(f, tf->event.event_id); |
c4afd5d8 |
1896 | |
1897 | if(!event_type) { |
1898 | g_error("Unknown event id %hhu in facility %s in tracefile %s", |
1899 | tf->event.event_id, |
1900 | g_quark_to_string(f->name), |
1901 | g_quark_to_string(tf->name)); |
1902 | goto event_type_error; |
1903 | } |
f104d082 |
1904 | |
1905 | /* Compute the dynamic offsets */ |
1906 | compute_offsets(tf, event_type, &size, tf->event.data); |
c4afd5d8 |
1907 | |
348c6ba8 |
1908 | //g_debug("Event root field : f.e %hhu.%hhu size %zd", |
1909 | // tf->event.facility_id, |
1910 | // tf->event.event_id, size); |
3aee1200 |
1911 | } |
3aee1200 |
1912 | |
77175651 |
1913 | tf->event.data_size = size; |
eed2ef37 |
1914 | |
b77d1b57 |
1915 | /* Check consistency between kernel and LTTV structure sizes */ |
1916 | g_assert(tf->event.data_size == tf->event.event_size); |
9eb6aa7a |
1917 | |
eed2ef37 |
1918 | return; |
1919 | |
c4afd5d8 |
1920 | facility_error: |
1921 | event_type_error: |
3aee1200 |
1922 | event_id_error: |
eed2ef37 |
1923 | tf->event.data_size = 0; |
6cd62ccf |
1924 | } |
1925 | |
6cd62ccf |
1926 | |
3aee1200 |
1927 | /* Take the tf current event offset and use the event facility id and event id |
1928 | * to figure out where is the next event offset. |
1929 | * |
1930 | * This is an internal function not aiming at being used elsewhere : it will |
1931 | * not jump over the current block limits. Please consider using |
1932 | * ltt_tracefile_read to do this. |
1933 | * |
1934 | * Returns 0 on success |
1935 | * ERANGE if we are at the end of the buffer. |
1936 | * ENOPROTOOPT if an error occured when getting the current event size. |
1937 | */ |
1938 | static int ltt_seek_next_event(LttTracefile *tf) |
6cd62ccf |
1939 | { |
3aee1200 |
1940 | int ret = 0; |
1941 | void *pos; |
3aee1200 |
1942 | |
1943 | /* seek over the buffer header if we are at the buffer start */ |
eed2ef37 |
1944 | if(tf->event.offset == 0) { |
51551c6f |
1945 | tf->event.offset += tf->buffer_header_size; |
b77d1b57 |
1946 | |
f628823c |
1947 | if(tf->event.offset == tf->buf_size - tf->buffer.lost_size) { |
b77d1b57 |
1948 | ret = ERANGE; |
1949 | } |
3aee1200 |
1950 | goto found; |
1951 | } |
6cd62ccf |
1952 | |
6cd62ccf |
1953 | |
3aee1200 |
1954 | pos = tf->event.data; |
1955 | |
77175651 |
1956 | if(tf->event.data_size < 0) goto error; |
3aee1200 |
1957 | |
77175651 |
1958 | pos += (size_t)tf->event.data_size; |
3aee1200 |
1959 | |
eed2ef37 |
1960 | tf->event.offset = pos - tf->buffer.head; |
cb03932a |
1961 | |
f628823c |
1962 | if(tf->event.offset == tf->buf_size - tf->buffer.lost_size) { |
cb03932a |
1963 | ret = ERANGE; |
1964 | goto found; |
1965 | } |
36d36c9f |
1966 | g_assert(tf->event.offset < tf->buf_size - tf->buffer.lost_size); |
3aee1200 |
1967 | |
1968 | found: |
1969 | return ret; |
1970 | |
1971 | error: |
1972 | g_error("Error in ltt_seek_next_event for tracefile %s", |
1973 | g_quark_to_string(tf->name)); |
1974 | return ENOPROTOOPT; |
6cd62ccf |
1975 | } |
1976 | |
791dffa6 |
1977 | #if 0 |
6cd62ccf |
1978 | /***************************************************************************** |
1979 | *Function name |
3aee1200 |
1980 | * calc_nsecs_per_cycle : calculate nsecs per cycle for current block |
986e2a7c |
1981 | * |
1982 | * 1.0 / (freq(khz) *1000) * 1000000000 |
6cd62ccf |
1983 | *Input Params |
1984 | * t : tracefile |
1985 | ****************************************************************************/ |
986e2a7c |
1986 | /* from timer_tsc.c */ |
1987 | #define CYC2NS_SCALE_FACTOR 10 |
791dffa6 |
1988 | static guint32 calc_nsecs_per_cycle(LttTracefile * tf) |
6cd62ccf |
1989 | { |
986e2a7c |
1990 | //return 1e6 / (double)tf->buffer.freq; |
791dffa6 |
1991 | guint32 cpu_mhz = tf->buffer.freq / 1000; |
1992 | guint32 cyc2ns_scale = (1000 << CYC2NS_SCALE_FACTOR)/cpu_mhz; |
6cd62ccf |
1993 | |
791dffa6 |
1994 | return cyc2ns_scale; |
986e2a7c |
1995 | // return 1e6 / (double)tf->buffer.freq; |
3aee1200 |
1996 | } |
791dffa6 |
1997 | |
1998 | static guint64 cycles_2_ns(LttTracefile *tf, guint64 cycles) |
1999 | { |
2000 | return (cycles * tf->buffer.cyc2ns_scale) >> CYC2NS_SCALE_FACTOR; |
2001 | } |
2002 | #endif //0 |
2003 | |
3aee1200 |
2004 | #if 0 |
2005 | void setFieldsOffset(LttTracefile *tf, LttEventType *evT,void *evD) |
2006 | { |
2007 | LttField * rootFld = evT->root_field; |
2008 | // rootFld->base_address = evD; |
2dee981d |
2009 | |
3aee1200 |
2010 | if(likely(rootFld)) |
2011 | rootFld->field_size = getFieldtypeSize(tf, evT->facility, |
2012 | evT, 0,0,rootFld, evD); |
6cd62ccf |
2013 | } |
3aee1200 |
2014 | #endif //0 |
f104d082 |
2015 | #if 0 |
3aee1200 |
2016 | /***************************************************************************** |
6cd62ccf |
2017 | *Function name |
3aee1200 |
2018 | * set_fields_offsets : set the precomputable offset of the fields |
6cd62ccf |
2019 | *Input params |
3aee1200 |
2020 | * tracefile : opened trace file |
2021 | * event_type : the event type |
6cd62ccf |
2022 | ****************************************************************************/ |
2023 | |
3aee1200 |
2024 | void set_fields_offsets(LttTracefile *tf, LttEventType *event_type) |
6cd62ccf |
2025 | { |
3aee1200 |
2026 | LttField *field = event_type->root_field; |
2027 | enum field_status fixed_root = FIELD_FIXED, fixed_parent = FIELD_FIXED; |
2028 | |
2029 | if(likely(field)) |
2030 | preset_field_type_size(tf, event_type, 0, 0, |
2031 | &fixed_root, &fixed_parent, |
2032 | field); |
2033 | |
2034 | } |
f104d082 |
2035 | #endif //0 |
2036 | |
2037 | |
2038 | /***************************************************************************** |
2039 | *Function name |
2040 | * get_alignment : Get the alignment needed for a field. |
2041 | *Input params |
2042 | * tf : tracefile |
2043 | * field : field |
2044 | * |
2045 | * returns : The size on which it must be aligned. |
2046 | * |
2047 | ****************************************************************************/ |
2048 | off_t get_alignment(LttTracefile *tf, LttField *field) |
2049 | { |
2050 | type = &field->field_type; |
2051 | |
2052 | switch(type->type_class) { |
2053 | case LTT_INT_FIXED: |
2054 | case LTT_UINT_FIXED: |
2055 | case LTT_POINTER: |
2056 | case LTT_CHAR: |
2057 | case LTT_UCHAR: |
2058 | case LTT_SHORT: |
2059 | case LTT_USHORT: |
2060 | case LTT_INT: |
2061 | case LTT_UINT: |
2062 | case LTT_LONG: |
2063 | case LTT_ULONG: |
2064 | case LTT_SIZE_T: |
2065 | case LTT_SSIZE_T: |
2066 | case LTT_OFF_T: |
2067 | case LTT_FLOAT: |
2068 | case LTT_ENUM: |
2069 | /* Align offset on type size */ |
2070 | return field->field_size; |
2071 | break; |
2072 | case LTT_STRING: |
2073 | return 0; |
2074 | break; |
2075 | case LTT_ARRAY: |
2076 | g_assert(type->fields->len == 1); |
2077 | { |
2078 | LttField *child = &g_array_index(type->fields, LttField, 0); |
2079 | return get_alignment(tf, child); |
2080 | } |
2081 | break; |
2082 | case LTT_SEQUENCE: |
2083 | g_assert(type->fields->len == 2); |
2084 | { |
2085 | off_t localign = 0; |
2086 | LttField *child = &g_array_index(type->fields, LttField, 0); |
2087 | |
2088 | localign = max(localign, get_alignment(tf, child)); |
2089 | |
2090 | child = &g_array_index(type->fields, LttField, 1); |
2091 | localign = max(localign, get_alignment(tf, child)); |
2092 | |
2093 | return localign; |
2094 | } |
2095 | break; |
2096 | case LTT_STRUCT: |
2097 | case LTT_UNION: |
2098 | { |
2099 | guint i; |
2100 | off_t localign = 0; |
2101 | |
2102 | for(i=0; i<type->fields->len; i++) { |
2103 | LttField *child = &g_array_index(type->fields, LttField, i); |
2104 | localign = max(localign, get_alignment(tf, child)); |
2105 | } |
2106 | return localign; |
2107 | } |
2108 | break; |
2109 | case LTT_NONE: |
2110 | default: |
2111 | g_error("get_alignment : unknown type"); |
2112 | } |
2113 | |
2114 | } |
2115 | |
2116 | /***************************************************************************** |
2117 | *Function name |
2118 | * field_compute_static_size : Determine the size of fields known by their |
2119 | * sole definition. Unions, arrays and struct sizes might be known, but |
2120 | * the parser does not give that information. |
2121 | *Input params |
2122 | * tf : tracefile |
2123 | * field : field |
2124 | * |
2125 | ****************************************************************************/ |
2126 | |
2127 | void field_compute_static_size(LttTracefile *tf, LttField *field) |
2128 | { |
2129 | type = &field->field_type; |
2130 | |
2131 | switch(type->type_class) { |
2132 | case LTT_INT_FIXED: |
2133 | case LTT_UINT_FIXED: |
2134 | case LTT_POINTER: |
2135 | case LTT_CHAR: |
2136 | case LTT_UCHAR: |
2137 | case LTT_SHORT: |
2138 | case LTT_USHORT: |
2139 | case LTT_INT: |
2140 | case LTT_UINT: |
2141 | case LTT_LONG: |
2142 | case LTT_ULONG: |
2143 | case LTT_SIZE_T: |
2144 | case LTT_SSIZE_T: |
2145 | case LTT_OFF_T: |
2146 | case LTT_FLOAT: |
2147 | case LTT_ENUM: |
2148 | case LTT_STRING: |
2149 | /* nothing to do */ |
2150 | break; |
2151 | case LTT_ARRAY: |
2152 | /* note this : array type size is the number of elements in the array, |
2153 | * while array field size of the length of the array in bytes */ |
2154 | g_assert(type->fields->len == 1); |
2155 | { |
2156 | LttField *child = &g_array_index(type->fields, LttField, 0); |
2157 | field_compute_static_size(tf, child); |
2158 | |
2159 | if(child->field_size != 0) { |
2160 | field->field_size = type->size * child->field_size; |
2161 | field->dynamic_offsets = g_array_sized_new(FALSE, TRUE, |
2162 | sizeof(off_t), type->size); |
2163 | } else { |
2164 | field->field_size = 0; |
2165 | } |
2166 | } |
2167 | break; |
2168 | case LTT_SEQUENCE: |
2169 | g_assert(type->fields->len == 2); |
2170 | { |
2171 | local_offset = 0; |
2172 | LttField *child = &g_array_index(type->fields, LttField, 1); |
2173 | field_compute_static_size(tf, child); |
2174 | field->field_size = 0; |
2175 | type->size = 0; |
2176 | if(child->field_size != 0) { |
2177 | field->dynamic_offsets = g_array_sized_new(FALSE, TRUE, |
2178 | sizeof(off_t), SEQUENCE_AVG_ELEMENTS); |
2179 | } |
2180 | } |
2181 | break; |
2182 | case LTT_STRUCT: |
2183 | case LTT_UNION: |
2184 | { |
2185 | guint i; |
2186 | for(i=0;i<type->fields->len;i++) { |
2187 | LttField *child = &g_array_index(type->fields, LttField, i); |
2188 | field_compute_static_size(tf, child); |
2189 | if(child->field_size != 0) { |
2190 | type->size += ltt_align(type->size, get_alignment(tf, child), |
2191 | tf->has_alignment); |
2192 | type->size += child->field_size; |
2193 | } else { |
2194 | /* As soon as we find a child with variable size, we have |
2195 | * a variable size */ |
2196 | type->size = 0; |
2197 | break; |
2198 | } |
2199 | } |
2200 | field->field_size = type->size; |
2201 | } |
2202 | break; |
2203 | default: |
2204 | g_error("field_static_size : unknown type"); |
2205 | |
2206 | } |
2207 | |
2208 | |
2209 | |
2210 | /***************************************************************************** |
2211 | *Function name |
2212 | * precompute_fields_offsets : set the precomputable offset of the fields |
2213 | *Input params |
2214 | * tf : tracefile |
2215 | * field : the field |
2216 | * offset : pointer to the current offset, must be incremented |
2217 | * |
2218 | * return : 1 : found a variable length field, stop the processing. |
2219 | * 0 otherwise. |
2220 | ****************************************************************************/ |
2221 | |
2222 | |
2223 | gint precompute_fields_offsets(LttTracefile *tf, LttField *field, off_t *offset) |
2224 | { |
2225 | type = &field->field_type; |
2226 | |
2227 | switch(type->type_class) { |
2228 | case LTT_INT_FIXED: |
2229 | case LTT_UINT_FIXED: |
2230 | case LTT_POINTER: |
2231 | case LTT_CHAR: |
2232 | case LTT_UCHAR: |
2233 | case LTT_SHORT: |
2234 | case LTT_USHORT: |
2235 | case LTT_INT: |
2236 | case LTT_UINT: |
2237 | case LTT_LONG: |
2238 | case LTT_ULONG: |
2239 | case LTT_SIZE_T: |
2240 | case LTT_SSIZE_T: |
2241 | case LTT_OFF_T: |
2242 | case LTT_FLOAT: |
2243 | case LTT_ENUM: |
2244 | /* Align offset on type size */ |
2245 | *offset += ltt_align(*offset, get_alignment(tf, field), |
2246 | tf->has_alignment); |
2247 | /* remember offset */ |
2248 | field->offset_root = *offset; |
2249 | field->fixed_root = FIELD_FIXED; |
2250 | /* Increment offset */ |
2251 | *offset += field->field_size; |
2252 | return 0; |
2253 | break; |
2254 | case LTT_STRING: |
2255 | field->offset_root = *offset; |
2256 | field->fixed_root = FIELD_FIXED; |
2257 | return 1; |
2258 | break; |
2259 | case LTT_ARRAY: |
2260 | g_assert(type->fields->len == 1); |
2261 | { |
2262 | LttField *child = &g_array_index(type->fields, LttField, 0); |
2263 | |
2264 | *offset += ltt_align(*offset, get_alignment(tf, field), |
2265 | tf->has_alignment); |
2266 | |
2267 | /* remember offset */ |
2268 | field->offset_root = *offset; |
2269 | field->array_offset = *offset; |
2270 | field->fixed_root = FIELD_FIXED; |
2271 | |
2272 | /* Let the child be variable */ |
2273 | //precompute_fields_offsets(tf, child, offset); |
2274 | |
2275 | if(field->field_size != 0) { |
2276 | /* Increment offset */ |
2277 | /* field_size is the array size in bytes */ |
2278 | *offset += field->field_size; |
2279 | return 0; |
2280 | } else { |
2281 | return 1; |
2282 | } |
2283 | } |
2284 | break; |
2285 | case LTT_SEQUENCE: |
2286 | g_assert(type->fields->len == 2); |
2287 | { |
2288 | LttField *child; |
2289 | guint ret; |
2290 | |
2291 | *offset += ltt_align(*offset, get_alignment(tf, field), |
2292 | tf->has_alignment); |
2293 | |
2294 | /* remember offset */ |
2295 | field->offset_root = *offset; |
2296 | field->fixed_root = FIELD_FIXED; |
2297 | |
2298 | child = &g_array_index(type->fields, LttField, 0); |
2299 | ret = precompute_fields_offsets(tf, child, offset); |
2300 | g_assert(ret == 0); /* Seq len cannot have variable len */ |
2301 | |
2302 | child = &g_array_index(type->fields, LttField, 1); |
2303 | *offset += ltt_align(*offset, get_alignment(tf, child), |
2304 | tf->has_alignment); |
2305 | field->array_offset = *offset; |
2306 | /* Set the offset position at position 0 */ |
2307 | ret = precompute_fields_offsets(tf, child, offset); |
2308 | |
2309 | /* Cannot precompute fields offsets of sequence members, and has |
2310 | * variable length. */ |
2311 | return 1; |
2312 | } |
2313 | break; |
2314 | case LTT_STRUCT: |
2315 | { |
2316 | LttField *child; |
2317 | guint i; |
2318 | gint ret=0; |
2319 | |
2320 | *offset += ltt_align(*offset, get_alignment(tf, field), |
2321 | tf->has_alignment); |
2322 | /* remember offset */ |
2323 | field->offset_root = *offset; |
2324 | field->fixed_root = FIELD_FIXED; |
2325 | |
2326 | for(i=0; i< type->fields->len; i++) { |
2327 | child = &g_array_index(type->fields, LttField, i); |
2328 | ret = precompute_fields_offsets(tf, child, offset); |
2329 | |
2330 | if(ret) break; |
2331 | } |
2332 | return ret; |
2333 | } |
2334 | break; |
2335 | case LTT_UNION: |
2336 | { |
2337 | LttField *child; |
2338 | guint i; |
2339 | gint ret=0; |
2340 | |
2341 | *offset += ltt_align(*offset, get_alignment(tf, field), |
2342 | tf->has_alignment); |
2343 | /* remember offset */ |
2344 | field->offset_root = *offset; |
2345 | field->fixed_root = FIELD_FIXED; |
2346 | |
2347 | for(i=0; i< type->fields->len; i++) { |
2348 | *offset = field->offset_root; |
2349 | child = &g_array_index(type->fields, LttField, i); |
2350 | ret = precompute_fields_offsets(tf, child, offset); |
2351 | |
2352 | if(ret) break; |
2353 | } |
2354 | *offset = field->offset_root + field->field_size; |
2355 | return ret; |
2356 | } |
2357 | |
2358 | break; |
2359 | case LTT_NONE: |
2360 | default: |
2361 | g_error("precompute_fields_offsets : unknown type"); |
2362 | return 1; |
2363 | } |
2364 | |
2365 | } |
2366 | |
2367 | |
2368 | /***************************************************************************** |
2369 | *Function name |
2370 | * precompute_offsets : set the precomputable offset of an event type |
2371 | *Input params |
2372 | * tf : tracefile |
2373 | * event : event type |
2374 | * |
2375 | ****************************************************************************/ |
2376 | void precompute_offsets(LttTracefile *tf, LttEventType *event) |
2377 | { |
2378 | guint i; |
2379 | off_t offset = 0; |
2380 | gint ret; |
2381 | |
2382 | /* First, compute the size of fixed size fields. Will determine size for |
2383 | * arrays, struct and unions, which is not done by the parser */ |
2384 | for(i=0; i<event->fields->len; i++) { |
2385 | LttField *field = &g_array_index(event->fields, LttField, i); |
2386 | field_compute_static_size(tf, field); |
2387 | } |
2388 | |
2389 | /* Precompute all known offsets */ |
2390 | for(i=0; i<event->fields->len; i++) { |
2391 | LttField *field = &g_array_index(event->fields, LttField, i); |
2392 | ret = precompute_fields_offsets(tf, field, &offset); |
2393 | if(ret) break; |
2394 | } |
2395 | } |
2396 | |
2397 | |
e4eced0f |
2398 | |
bbf28e50 |
2399 | |
3aee1200 |
2400 | /***************************************************************************** |
2401 | *Function name |
2402 | * preset_field_type_size : set the fixed sizes of the field type |
2403 | *Input params |
2404 | * tf : tracefile |
2405 | * event_type : event type |
2406 | * offset_root : offset from the root |
2407 | * offset_parent : offset from the parent |
2408 | * fixed_root : Do we know a fixed offset to the root ? |
2409 | * fixed_parent : Do we know a fixed offset to the parent ? |
2410 | * field : field |
2411 | ****************************************************************************/ |
f104d082 |
2412 | |
2413 | |
2414 | |
2415 | // preset the fixed size offsets. Calculate them just like genevent-new : an |
2416 | // increment of a *to value that represents the offset from the start of the |
2417 | // event data. |
2418 | // The preset information is : offsets up to (and including) the first element |
2419 | // of variable size. All subsequent fields must be flagged "VARIABLE OFFSET". |
2420 | #if 0 |
3aee1200 |
2421 | void preset_field_type_size(LttTracefile *tf, LttEventType *event_type, |
2422 | off_t offset_root, off_t offset_parent, |
2423 | enum field_status *fixed_root, enum field_status *fixed_parent, |
2424 | LttField *field) |
2425 | { |
2426 | enum field_status local_fixed_root, local_fixed_parent; |
2427 | guint i; |
2428 | LttType *type; |
dfb73233 |
2429 | |
3aee1200 |
2430 | g_assert(field->fixed_root == FIELD_UNKNOWN); |
2431 | g_assert(field->fixed_parent == FIELD_UNKNOWN); |
2432 | g_assert(field->fixed_size == FIELD_UNKNOWN); |
dfb73233 |
2433 | |
3aee1200 |
2434 | type = field->field_type; |
2435 | |
2436 | field->fixed_root = *fixed_root; |
2437 | if(field->fixed_root == FIELD_FIXED) |
2438 | field->offset_root = offset_root; |
2439 | else |
2440 | field->offset_root = 0; |
2441 | |
2442 | field->fixed_parent = *fixed_parent; |
2443 | if(field->fixed_parent == FIELD_FIXED) |
2444 | field->offset_parent = offset_parent; |
2445 | else |
2446 | field->offset_parent = 0; |
2447 | |
2448 | size_t current_root_offset; |
2449 | size_t current_offset; |
2450 | enum field_status current_child_status, final_child_status; |
2451 | size_t max_size; |
2452 | |
2453 | switch(type->type_class) { |
2454 | case LTT_INT: |
2455 | case LTT_UINT: |
2456 | case LTT_FLOAT: |
2457 | case LTT_ENUM: |
2458 | field->field_size = ltt_type_size(tf->trace, type); |
2459 | field->fixed_size = FIELD_FIXED; |
2460 | break; |
2461 | case LTT_POINTER: |
2462 | field->field_size = (off_t)event_type->facility->pointer_size; |
2463 | field->fixed_size = FIELD_FIXED; |
2464 | break; |
2465 | case LTT_LONG: |
2466 | case LTT_ULONG: |
cb03932a |
2467 | field->field_size = (off_t)event_type->facility->long_size; |
3aee1200 |
2468 | field->fixed_size = FIELD_FIXED; |
2469 | break; |
2470 | case LTT_SIZE_T: |
2471 | case LTT_SSIZE_T: |
2472 | case LTT_OFF_T: |
2473 | field->field_size = (off_t)event_type->facility->size_t_size; |
2474 | field->fixed_size = FIELD_FIXED; |
2475 | break; |
2476 | case LTT_SEQUENCE: |
2477 | local_fixed_root = FIELD_VARIABLE; |
2478 | local_fixed_parent = FIELD_VARIABLE; |
2479 | preset_field_type_size(tf, event_type, |
2480 | 0, 0, |
2481 | &local_fixed_root, &local_fixed_parent, |
2482 | field->child[0]); |
2483 | field->fixed_size = FIELD_VARIABLE; |
2484 | field->field_size = 0; |
27304273 |
2485 | *fixed_root = FIELD_VARIABLE; |
2486 | *fixed_parent = FIELD_VARIABLE; |
3aee1200 |
2487 | break; |
2488 | case LTT_STRING: |
2489 | field->fixed_size = FIELD_VARIABLE; |
2490 | field->field_size = 0; |
27304273 |
2491 | *fixed_root = FIELD_VARIABLE; |
2492 | *fixed_parent = FIELD_VARIABLE; |
3aee1200 |
2493 | break; |
2494 | case LTT_ARRAY: |
2495 | local_fixed_root = FIELD_VARIABLE; |
2496 | local_fixed_parent = FIELD_VARIABLE; |
2497 | preset_field_type_size(tf, event_type, |
2498 | 0, 0, |
2499 | &local_fixed_root, &local_fixed_parent, |
2500 | field->child[0]); |
2501 | field->fixed_size = field->child[0]->fixed_size; |
27304273 |
2502 | if(field->fixed_size == FIELD_FIXED) { |
3aee1200 |
2503 | field->field_size = type->element_number * field->child[0]->field_size; |
27304273 |
2504 | } else { |
3aee1200 |
2505 | field->field_size = 0; |
27304273 |
2506 | *fixed_root = FIELD_VARIABLE; |
2507 | *fixed_parent = FIELD_VARIABLE; |
2508 | } |
3aee1200 |
2509 | break; |
2510 | case LTT_STRUCT: |
2511 | current_root_offset = field->offset_root; |
2512 | current_offset = 0; |
2513 | current_child_status = FIELD_FIXED; |
2514 | for(i=0;i<type->element_number;i++) { |
2515 | preset_field_type_size(tf, event_type, |
2516 | current_root_offset, current_offset, |
2517 | fixed_root, ¤t_child_status, |
2518 | field->child[i]); |
2519 | if(current_child_status == FIELD_FIXED) { |
2520 | current_root_offset += field->child[i]->field_size; |
2521 | current_offset += field->child[i]->field_size; |
2522 | } else { |
2523 | current_root_offset = 0; |
2524 | current_offset = 0; |
2525 | } |
2526 | } |
2527 | if(current_child_status != FIELD_FIXED) { |
2528 | *fixed_parent = current_child_status; |
2529 | field->field_size = 0; |
2530 | field->fixed_size = current_child_status; |
2531 | } else { |
2532 | field->field_size = current_offset; |
2533 | field->fixed_size = FIELD_FIXED; |
2534 | } |
2535 | break; |
2536 | case LTT_UNION: |
2537 | current_root_offset = field->offset_root; |
2538 | current_offset = 0; |
2539 | max_size = 0; |
2540 | final_child_status = FIELD_FIXED; |
2541 | for(i=0;i<type->element_number;i++) { |
2542 | enum field_status current_root_child_status = FIELD_FIXED; |
2543 | enum field_status current_child_status = FIELD_FIXED; |
2544 | preset_field_type_size(tf, event_type, |
2545 | current_root_offset, current_offset, |
2546 | ¤t_root_child_status, ¤t_child_status, |
2547 | field->child[i]); |
2548 | if(current_child_status != FIELD_FIXED) |
2549 | final_child_status = current_child_status; |
2550 | else |
2551 | max_size = max(max_size, field->child[i]->field_size); |
2552 | } |
2553 | if(final_child_status != FIELD_FIXED) { |
e2542235 |
2554 | g_error("LTTV does not support variable size fields in unions."); |
2555 | /* This will stop the application. */ |
3aee1200 |
2556 | *fixed_root = final_child_status; |
2557 | *fixed_parent = final_child_status; |
2558 | field->field_size = 0; |
2559 | field->fixed_size = current_child_status; |
2560 | } else { |
2561 | field->field_size = max_size; |
2562 | field->fixed_size = FIELD_FIXED; |
2563 | } |
2564 | break; |
dfb73233 |
2565 | } |
2566 | |
6cd62ccf |
2567 | } |
f104d082 |
2568 | #endif //0 |
3aee1200 |
2569 | |
77175651 |
2570 | /***************************************************************************** |
2571 | *Function name |
2572 | * check_fields_compatibility : Check for compatibility between two fields : |
2573 | * do they use the same inner structure ? |
2574 | *Input params |
2575 | * event_type1 : event type |
2576 | * event_type2 : event type |
2577 | * field1 : field |
2578 | * field2 : field |
2579 | *Returns : 0 if identical |
2580 | * 1 if not. |
2581 | ****************************************************************************/ |
f104d082 |
2582 | // this function checks for equality of field types. Therefore, it does not use |
2583 | // per se offsets. For instance, an aligned version of a structure is |
2584 | // compatible with an unaligned version of the same structure. |
2585 | gint check_fields_compatibility(LttEventType *event_type1, |
2586 | LttEventType *event_type2, |
2587 | LttField *field1, LttField *field2) |
2588 | { |
2589 | guint different = 0; |
2590 | |
2591 | if(field1 == NULL) { |
2592 | if(field2 == NULL) goto end; |
2593 | else { |
2594 | different = 1; |
2595 | goto end; |
2596 | } |
2597 | } else if(field2 == NULL) { |
2598 | different = 1; |
2599 | goto end; |
2600 | } |
2601 | |
2602 | type1 = field1->field_type; |
2603 | type2 = field2->field_type; |
2604 | |
2605 | if(type1->type_class != type2->type_class) { |
2606 | different = 1; |
2607 | goto end; |
2608 | } |
2609 | if(type1->element_name != type2->element_name) { |
2610 | different = 1; |
2611 | goto end; |
2612 | } |
2613 | |
2614 | switch(type1->type_class) { |
2615 | case LTT_INT_FIXED: |
2616 | case LTT_UINT_FIXED: |
2617 | case LTT_POINTER: |
2618 | case LTT_CHAR: |
2619 | case LTT_UCHAR: |
2620 | case LTT_SHORT: |
2621 | case LTT_USHORT: |
2622 | case LTT_INT: |
2623 | case LTT_UINT: |
2624 | case LTT_LONG: |
2625 | case LTT_ULONG: |
2626 | case LTT_SIZE_T: |
2627 | case LTT_SSIZE_T: |
2628 | case LTT_OFF_T: |
2629 | case LTT_FLOAT: |
2630 | case LTT_ENUM: |
2631 | if(field1->field_size != field2->field_size) |
2632 | different = 1; |
2633 | break; |
2634 | case LTT_STRING: |
2635 | break; |
2636 | case LTT_ARRAY: |
2637 | { |
2638 | LttField *child1 = &g_array_index(type1->fields, LttField, 0); |
2639 | LttField *child2 = &g_array_index(type2->fields, LttField, 0); |
2640 | |
2641 | if(type1->size != type2->size) |
2642 | different = 1; |
2643 | if(check_fields_compatibility(event_type1, event_type2, child1, child2)) |
2644 | different = 1; |
2645 | } |
2646 | break; |
2647 | case LTT_SEQUENCE: |
2648 | { |
2649 | LttField *child1 = &g_array_index(type1->fields, LttField, 1); |
2650 | LttField *child2 = &g_array_index(type2->fields, LttField, 1); |
2651 | |
2652 | if(check_fields_compatibility(event_type1, event_type2, child1, child2)) |
2653 | different = 1; |
2654 | } |
2655 | break; |
2656 | case LTT_STRUCT: |
2657 | case LTT_UNION: |
2658 | { |
2659 | LttField *child; |
2660 | guint i; |
2661 | |
2662 | if(type1->fields->len != type2->fields->len) { |
2663 | different = 1; |
2664 | goto end; |
2665 | } |
2666 | |
2667 | for(i=0; i< type1->fields->len; i++) { |
2668 | child1 = &g_array_index(type1->fields, LttField, i); |
2669 | child2 = &g_array_index(type2->fields, LttField, i); |
2670 | different = check_fields_compatibility(event_type1, |
2671 | event_type2, child1, child2); |
2672 | |
2673 | if(different) break; |
2674 | } |
2675 | } |
2676 | break; |
2677 | case LTT_NONE: |
2678 | default: |
2679 | g_error("precompute_fields_offsets : unknown type"); |
2680 | } |
2681 | |
2682 | end: |
2683 | return different; |
2684 | } |
2685 | |
2686 | |
2687 | #if 0 |
77175651 |
2688 | gint check_fields_compatibility(LttEventType *event_type1, |
2689 | LttEventType *event_type2, |
2690 | LttField *field1, LttField *field2) |
2691 | { |
2692 | guint different = 0; |
77175651 |
2693 | guint i; |
2694 | LttType *type1; |
2695 | LttType *type2; |
2696 | |
2697 | if(field1 == NULL) { |
2698 | if(field2 == NULL) goto end; |
2699 | else { |
2700 | different = 1; |
2701 | goto end; |
2702 | } |
2703 | } else if(field2 == NULL) { |
2704 | different = 1; |
2705 | goto end; |
2706 | } |
2707 | |
2708 | g_assert(field1->fixed_root != FIELD_UNKNOWN); |
2709 | g_assert(field2->fixed_root != FIELD_UNKNOWN); |
2710 | g_assert(field1->fixed_parent != FIELD_UNKNOWN); |
2711 | g_assert(field2->fixed_parent != FIELD_UNKNOWN); |
2712 | g_assert(field1->fixed_size != FIELD_UNKNOWN); |
2713 | g_assert(field2->fixed_size != FIELD_UNKNOWN); |
2714 | |
2715 | type1 = field1->field_type; |
2716 | type2 = field2->field_type; |
2717 | |
77175651 |
2718 | if(type1->type_class != type2->type_class) { |
2719 | different = 1; |
2720 | goto end; |
2721 | } |
2722 | if(type1->element_name != type2->element_name) { |
2723 | different = 1; |
2724 | goto end; |
2725 | } |
2726 | |
2727 | switch(type1->type_class) { |
2728 | case LTT_INT: |
2729 | case LTT_UINT: |
2730 | case LTT_FLOAT: |
2731 | case LTT_POINTER: |
2732 | case LTT_LONG: |
2733 | case LTT_ULONG: |
2734 | case LTT_SIZE_T: |
2735 | case LTT_SSIZE_T: |
2736 | case LTT_OFF_T: |
2737 | if(field1->field_size != field2->field_size) { |
2738 | different = 1; |
2739 | goto end; |
2740 | } |
2741 | break; |
2742 | case LTT_ENUM: |
2743 | if(type1->element_number != type2->element_number) { |
2744 | different = 1; |
2745 | goto end; |
2746 | } |
2747 | for(i=0;i<type1->element_number;i++) { |
2748 | if(type1->enum_strings[i] != type2->enum_strings[i]) { |
2749 | different = 1; |
2750 | goto end; |
2751 | } |
2752 | } |
2753 | break; |
2754 | case LTT_SEQUENCE: |
2755 | /* Two elements : size and child */ |
2756 | g_assert(type1->element_number != type2->element_number); |
2757 | for(i=0;i<type1->element_number;i++) { |
2758 | if(check_fields_compatibility(event_type1, event_type2, |
2759 | field1->child[0], field2->child[0])) { |
2760 | different = 1; |
2761 | goto end; |
2762 | } |
2763 | } |
2764 | break; |
2765 | case LTT_STRING: |
2766 | break; |
2767 | case LTT_ARRAY: |
2768 | if(field1->field_size != field2->field_size) { |
2769 | different = 1; |
2770 | goto end; |
2771 | } |
2772 | /* Two elements : size and child */ |
2773 | g_assert(type1->element_number != type2->element_number); |
2774 | for(i=0;i<type1->element_number;i++) { |
2775 | if(check_fields_compatibility(event_type1, event_type2, |
2776 | field1->child[0], field2->child[0])) { |
2777 | different = 1; |
2778 | goto end; |
2779 | } |
2780 | } |
2781 | break; |
2782 | case LTT_STRUCT: |
2783 | case LTT_UNION: |
2784 | if(type1->element_number != type2->element_number) { |
2785 | different = 1; |
2786 | break; |
2787 | } |
2788 | for(i=0;i<type1->element_number;i++) { |
2789 | if(check_fields_compatibility(event_type1, event_type2, |
2790 | field1->child[0], field2->child[0])) { |
2791 | different = 1; |
2792 | goto end; |
2793 | } |
2794 | } |
2795 | break; |
2796 | } |
2797 | end: |
2798 | return different; |
2799 | } |
3aee1200 |
2800 | #endif //0 |
6cd62ccf |
2801 | |
f104d082 |
2802 | |
6cd62ccf |
2803 | /***************************************************************************** |
2804 | *Function name |
eed2ef37 |
2805 | * ltt_get_int : get an integer number |
6cd62ccf |
2806 | *Input params |
3aee1200 |
2807 | * reverse_byte_order: must we reverse the byte order ? |
6cd62ccf |
2808 | * size : the size of the integer |
3aee1200 |
2809 | * ptr : the data pointer |
6cd62ccf |
2810 | *Return value |
cf74a6f1 |
2811 | * gint64 : a 64 bits integer |
6cd62ccf |
2812 | ****************************************************************************/ |
2813 | |
eed2ef37 |
2814 | gint64 ltt_get_int(gboolean reverse_byte_order, gint size, void *data) |
6cd62ccf |
2815 | { |
3aee1200 |
2816 | gint64 val; |
cf74a6f1 |
2817 | |
2818 | switch(size) { |
3aee1200 |
2819 | case 1: val = *((gint8*)data); break; |
2820 | case 2: val = ltt_get_int16(reverse_byte_order, data); break; |
2821 | case 4: val = ltt_get_int32(reverse_byte_order, data); break; |
2822 | case 8: val = ltt_get_int64(reverse_byte_order, data); break; |
2823 | default: val = ltt_get_int64(reverse_byte_order, data); |
2824 | g_critical("get_int : integer size %d unknown", size); |
cf74a6f1 |
2825 | break; |
2826 | } |
2827 | |
3aee1200 |
2828 | return val; |
6cd62ccf |
2829 | } |
3aee1200 |
2830 | |
6cd62ccf |
2831 | /***************************************************************************** |
2832 | *Function name |
eed2ef37 |
2833 | * ltt_get_uint : get an unsigned integer number |
6cd62ccf |
2834 | *Input params |
3aee1200 |
2835 | * reverse_byte_order: must we reverse the byte order ? |
2836 | * size : the size of the integer |
2837 | * ptr : the data pointer |
2838 | *Return value |
2839 | * guint64 : a 64 bits unsigned integer |
6cd62ccf |
2840 | ****************************************************************************/ |
2841 | |
eed2ef37 |
2842 | guint64 ltt_get_uint(gboolean reverse_byte_order, gint size, void *data) |
6cd62ccf |
2843 | { |
3aee1200 |
2844 | guint64 val; |
2845 | |
2846 | switch(size) { |
2847 | case 1: val = *((gint8*)data); break; |
2848 | case 2: val = ltt_get_uint16(reverse_byte_order, data); break; |
2849 | case 4: val = ltt_get_uint32(reverse_byte_order, data); break; |
2850 | case 8: val = ltt_get_uint64(reverse_byte_order, data); break; |
2851 | default: val = ltt_get_uint64(reverse_byte_order, data); |
2852 | g_critical("get_uint : unsigned integer size %d unknown", |
2853 | size); |
2854 | break; |
2855 | } |
2856 | |
2857 | return val; |
6cd62ccf |
2858 | } |
3aee1200 |
2859 | |
2860 | |
a5dcde2f |
2861 | /* get the node name of the system */ |
2862 | |
2863 | char * ltt_trace_system_description_node_name (LttSystemDescription * s) |
2864 | { |
2865 | return s->node_name; |
2866 | } |
2867 | |
2868 | |
2869 | /* get the domain name of the system */ |
2870 | |
2871 | char * ltt_trace_system_description_domain_name (LttSystemDescription * s) |
2872 | { |
2873 | return s->domain_name; |
2874 | } |
2875 | |
2876 | |
2877 | /* get the description of the system */ |
2878 | |
2879 | char * ltt_trace_system_description_description (LttSystemDescription * s) |
2880 | { |
2881 | return s->description; |
2882 | } |
2883 | |
2884 | |
bf33dd50 |
2885 | /* get the NTP corrected start time of the trace */ |
7bd563ec |
2886 | LttTime ltt_trace_start_time(LttTrace *t) |
a5dcde2f |
2887 | { |
7bd563ec |
2888 | return t->start_time; |
a5dcde2f |
2889 | } |
2890 | |
bf33dd50 |
2891 | /* get the monotonic start time of the trace */ |
2892 | LttTime ltt_trace_start_time_monotonic(LttTrace *t) |
2893 | { |
2894 | return t->start_time_from_tsc; |
2895 | } |
2896 | |
18206708 |
2897 | LttTracefile *ltt_tracefile_new() |
2898 | { |
2899 | return g_new(LttTracefile, 1); |
2900 | } |
2901 | |
2902 | void ltt_tracefile_destroy(LttTracefile *tf) |
2903 | { |
2904 | g_free(tf); |
2905 | } |
2906 | |
2907 | void ltt_tracefile_copy(LttTracefile *dest, const LttTracefile *src) |
2908 | { |
2909 | *dest = *src; |
2910 | } |
2911 | |
3aee1200 |
2912 | /* Before library loading... */ |
2913 | |
2914 | static void __attribute__((constructor)) init(void) |
2915 | { |
2916 | LTT_FACILITY_NAME_HEARTBEAT = g_quark_from_string("heartbeat"); |
2917 | LTT_EVENT_NAME_HEARTBEAT = g_quark_from_string("heartbeat"); |
2918 | |
3865ea09 |
2919 | LTT_TRACEFILE_NAME_FACILITIES = g_quark_from_string("/control/facilities"); |
3aee1200 |
2920 | } |
2921 | |