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 | |
2312de30 |
108 | |
743e50fd |
109 | void precompute_offsets(LttFacility *fac, LttEventType *event); |
2312de30 |
110 | |
3aee1200 |
111 | #if 0 |
43da6a59 |
112 | /* Functions to parse system.xml file (using glib xml parser) */ |
51b5991e |
113 | static void parser_start_element (GMarkupParseContext __UNUSED__ *context, |
43da6a59 |
114 | const gchar *element_name, |
115 | const gchar **attribute_names, |
116 | const gchar **attribute_values, |
117 | gpointer user_data, |
118 | GError **error) |
119 | { |
120 | int i=0; |
121 | LttSystemDescription* des = (LttSystemDescription* )user_data; |
122 | if(strcmp("system", element_name)){ |
2a74fbf4 |
123 | *error = g_error_new(G_MARKUP_ERROR, |
124 | G_LOG_LEVEL_WARNING, |
125 | "This is not system.xml file"); |
126 | return; |
43da6a59 |
127 | } |
128 | |
129 | while(attribute_names[i]){ |
130 | if(strcmp("node_name", attribute_names[i])==0){ |
131 | des->node_name = g_strdup(attribute_values[i]); |
132 | }else if(strcmp("domainname", attribute_names[i])==0){ |
133 | des->domain_name = g_strdup(attribute_values[i]); |
134 | }else if(strcmp("cpu", attribute_names[i])==0){ |
135 | des->nb_cpu = atoi(attribute_values[i]); |
136 | }else if(strcmp("arch_size", attribute_names[i])==0){ |
137 | if(strcmp(attribute_values[i],"LP32") == 0) des->size = LTT_LP32; |
138 | else if(strcmp(attribute_values[i],"ILP32") == 0) des->size = LTT_ILP32; |
139 | else if(strcmp(attribute_values[i],"LP64") == 0) des->size = LTT_LP64; |
140 | else if(strcmp(attribute_values[i],"ILP64") == 0) des->size = LTT_ILP64; |
141 | else if(strcmp(attribute_values[i],"UNKNOWN") == 0) des->size = LTT_UNKNOWN; |
142 | }else if(strcmp("endian", attribute_names[i])==0){ |
143 | if(strcmp(attribute_values[i],"LITTLE_ENDIAN") == 0) |
144 | des->endian = LTT_LITTLE_ENDIAN; |
145 | else if(strcmp(attribute_values[i],"BIG_ENDIAN") == 0) |
146 | des->endian = LTT_BIG_ENDIAN; |
147 | }else if(strcmp("kernel_name", attribute_names[i])==0){ |
148 | des->kernel_name = g_strdup(attribute_values[i]); |
149 | }else if(strcmp("kernel_release", attribute_names[i])==0){ |
150 | des->kernel_release = g_strdup(attribute_values[i]); |
151 | }else if(strcmp("kernel_version", attribute_names[i])==0){ |
152 | des->kernel_version = g_strdup(attribute_values[i]); |
153 | }else if(strcmp("machine", attribute_names[i])==0){ |
154 | des->machine = g_strdup(attribute_values[i]); |
155 | }else if(strcmp("processor", attribute_names[i])==0){ |
156 | des->processor = g_strdup(attribute_values[i]); |
157 | }else if(strcmp("hardware_platform", attribute_names[i])==0){ |
158 | des->hardware_platform = g_strdup(attribute_values[i]); |
159 | }else if(strcmp("operating_system", attribute_names[i])==0){ |
160 | des->operating_system = g_strdup(attribute_values[i]); |
161 | }else if(strcmp("ltt_major_version", attribute_names[i])==0){ |
162 | des->ltt_major_version = atoi(attribute_values[i]); |
163 | }else if(strcmp("ltt_minor_version", attribute_names[i])==0){ |
164 | des->ltt_minor_version = atoi(attribute_values[i]); |
165 | }else if(strcmp("ltt_block_size", attribute_names[i])==0){ |
166 | des->ltt_block_size = atoi(attribute_values[i]); |
167 | }else{ |
2a74fbf4 |
168 | *error = g_error_new(G_MARKUP_ERROR, |
169 | G_LOG_LEVEL_WARNING, |
170 | "Not a valid attribute"); |
171 | return; |
43da6a59 |
172 | } |
173 | i++; |
174 | } |
175 | } |
176 | |
51b5991e |
177 | static void parser_characters (GMarkupParseContext __UNUSED__ *context, |
43da6a59 |
178 | const gchar *text, |
51b5991e |
179 | gsize __UNUSED__ text_len, |
43da6a59 |
180 | gpointer user_data, |
51b5991e |
181 | GError __UNUSED__ **error) |
43da6a59 |
182 | { |
183 | LttSystemDescription* des = (LttSystemDescription* )user_data; |
184 | des->description = g_strdup(text); |
185 | } |
3aee1200 |
186 | #endif //0 |
f104d082 |
187 | |
188 | |
77175651 |
189 | LttFacility *ltt_trace_get_facility_by_num(LttTrace *t, |
3aee1200 |
190 | guint num) |
191 | { |
192 | g_assert(num < t->facilities_by_num->len); |
193 | |
194 | return &g_array_index(t->facilities_by_num, LttFacility, num); |
195 | |
196 | } |
43da6a59 |
197 | |
b56dcdf2 |
198 | guint ltt_trace_get_num_cpu(LttTrace *t) |
199 | { |
200 | return t->num_cpu; |
201 | } |
202 | |
43da6a59 |
203 | |
b7576a11 |
204 | /* trace can be NULL |
205 | * |
206 | * Return value : 0 success, 1 bad tracefile |
207 | */ |
208 | int parse_trace_header(void *header, LttTracefile *tf, LttTrace *t) |
209 | { |
210 | guint32 *magic_number = (guint32*)header; |
211 | struct ltt_trace_header_any *any = (struct ltt_trace_header_any *)header; |
212 | |
213 | if(*magic_number == LTT_MAGIC_NUMBER) |
214 | tf->reverse_bo = 0; |
215 | else if(*magic_number == LTT_REV_MAGIC_NUMBER) |
216 | tf->reverse_bo = 1; |
217 | else /* invalid magic number, bad tracefile ! */ |
218 | return 1; |
219 | |
220 | /* Get float byte order : might be different from int byte order |
221 | * (or is set to 0 if the trace has no float (kernel trace)) */ |
222 | tf->float_word_order = any->float_word_order; |
f104d082 |
223 | tf->has_alignment = any->has_alignment; |
b7576a11 |
224 | |
225 | if(t) { |
226 | t->arch_type = ltt_get_uint32(LTT_GET_BO(tf), |
227 | &any->arch_type); |
228 | t->arch_variant = ltt_get_uint32(LTT_GET_BO(tf), |
229 | &any->arch_variant); |
230 | t->arch_size = any->arch_size; |
231 | t->ltt_major_version = any->major_version; |
232 | t->ltt_minor_version = any->minor_version; |
233 | t->flight_recorder = any->flight_recorder; |
234 | t->has_heartbeat = any->has_heartbeat; |
b7576a11 |
235 | t->has_tsc = any->has_tsc; |
236 | } |
237 | |
238 | |
239 | switch(any->major_version) { |
240 | |
241 | case 0: |
242 | switch(any->minor_version) { |
243 | case 3: |
244 | { |
823820eb |
245 | tf->buffer_header_size = |
246 | sizeof(struct ltt_block_start_header) |
247 | + sizeof(struct ltt_trace_header_0_3); |
986e2a7c |
248 | g_warning("Unsupported trace version : %hhu.%hhu", |
249 | any->major_version, any->minor_version); |
250 | return 1; |
251 | } |
252 | break; |
69183aa9 |
253 | case 6: |
e939e5b2 |
254 | { |
5a697565 |
255 | struct ltt_trace_header_0_6 *vheader = |
256 | (struct ltt_trace_header_0_6 *)header; |
e939e5b2 |
257 | tf->buffer_header_size = |
258 | sizeof(struct ltt_block_start_header) |
5a697565 |
259 | + sizeof(struct ltt_trace_header_0_6); |
e939e5b2 |
260 | if(t) { |
261 | t->start_freq = ltt_get_uint64(LTT_GET_BO(tf), |
262 | &vheader->start_freq); |
263 | t->start_tsc = ltt_get_uint64(LTT_GET_BO(tf), |
264 | &vheader->start_tsc); |
265 | t->start_monotonic = ltt_get_uint64(LTT_GET_BO(tf), |
266 | &vheader->start_monotonic); |
267 | t->start_time.tv_sec = ltt_get_uint64(LTT_GET_BO(tf), |
268 | &vheader->start_time_sec); |
269 | t->start_time.tv_nsec = ltt_get_uint64(LTT_GET_BO(tf), |
270 | &vheader->start_time_usec); |
271 | t->start_time.tv_nsec *= 1000; /* microsec to nanosec */ |
272 | |
273 | t->start_time_from_tsc = ltt_time_from_uint64( |
274 | (double)t->start_tsc * 1000000.0 / (double)t->start_freq); |
275 | } |
276 | } |
277 | break; |
b7576a11 |
278 | default: |
986e2a7c |
279 | g_warning("Unsupported trace version : %hhu.%hhu", |
b7576a11 |
280 | any->major_version, any->minor_version); |
281 | return 1; |
282 | } |
283 | break; |
284 | |
285 | default: |
286 | g_warning("Unsupported trace version : %hhu.%hhu", |
287 | any->major_version, any->minor_version); |
288 | return 1; |
289 | } |
290 | |
291 | |
292 | return 0; |
293 | } |
294 | |
295 | |
296 | |
6cd62ccf |
297 | /***************************************************************************** |
298 | *Function name |
963b5f2d |
299 | * ltt_tracefile_open : open a trace file, construct a LttTracefile |
6cd62ccf |
300 | *Input params |
963b5f2d |
301 | * t : the trace containing the tracefile |
302 | * fileName : path name of the trace file |
3aee1200 |
303 | * tf : the tracefile structure |
6cd62ccf |
304 | *Return value |
3aee1200 |
305 | * : 0 for success, -1 otherwise. |
6cd62ccf |
306 | ****************************************************************************/ |
307 | |
3aee1200 |
308 | gint ltt_tracefile_open(LttTrace *t, gchar * fileName, LttTracefile *tf) |
6cd62ccf |
309 | { |
963b5f2d |
310 | struct stat lTDFStat; /* Trace data file status */ |
3aee1200 |
311 | struct ltt_block_start_header *header; |
b77d1b57 |
312 | int page_size = getpagesize(); |
6cd62ccf |
313 | |
314 | //open the file |
d3d34f49 |
315 | tf->long_name = g_quark_from_string(fileName); |
963b5f2d |
316 | tf->trace = t; |
3865ea09 |
317 | tf->fd = open(fileName, O_RDONLY); |
6cd62ccf |
318 | if(tf->fd < 0){ |
2a74fbf4 |
319 | g_warning("Unable to open input data file %s\n", fileName); |
3aee1200 |
320 | goto end; |
6cd62ccf |
321 | } |
322 | |
323 | // Get the file's status |
324 | if(fstat(tf->fd, &lTDFStat) < 0){ |
2a74fbf4 |
325 | g_warning("Unable to get the status of the input data file %s\n", fileName); |
3aee1200 |
326 | goto close_file; |
6cd62ccf |
327 | } |
328 | |
329 | // Is the file large enough to contain a trace |
823820eb |
330 | if(lTDFStat.st_size < |
9ea7b94b |
331 | (off_t)(sizeof(struct ltt_block_start_header) |
332 | + sizeof(struct ltt_trace_header_any))){ |
8710c6c7 |
333 | g_print("The input data file %s does not contain a trace\n", fileName); |
3aee1200 |
334 | goto close_file; |
335 | } |
336 | |
337 | /* Temporarily map the buffer start header to get trace information */ |
338 | /* Multiple of pages aligned head */ |
b77d1b57 |
339 | tf->buffer.head = mmap(0, |
9ea7b94b |
340 | PAGE_ALIGN(sizeof(struct ltt_block_start_header) |
341 | + sizeof(struct ltt_trace_header_any)), PROT_READ, |
3aee1200 |
342 | MAP_PRIVATE, tf->fd, 0); |
3865ea09 |
343 | if(tf->buffer.head == MAP_FAILED) { |
3aee1200 |
344 | perror("Error in allocating memory for buffer of tracefile"); |
345 | goto close_file; |
6cd62ccf |
346 | } |
3865ea09 |
347 | g_assert( ( (guint)tf->buffer.head&(8-1) ) == 0); // make sure it's aligned. |
3aee1200 |
348 | |
349 | header = (struct ltt_block_start_header*)tf->buffer.head; |
6cd62ccf |
350 | |
51551c6f |
351 | if(parse_trace_header(header->trace, tf, NULL)) { |
352 | g_warning("parse_trace_header error"); |
353 | goto unmap_file; |
354 | } |
3aee1200 |
355 | |
6cd62ccf |
356 | //store the size of the file |
357 | tf->file_size = lTDFStat.st_size; |
f628823c |
358 | tf->buf_size = ltt_get_uint32(LTT_GET_BO(tf), &header->buf_size); |
359 | tf->num_blocks = tf->file_size / tf->buf_size; |
360 | |
361 | if(munmap(tf->buffer.head, |
9ea7b94b |
362 | PAGE_ALIGN(sizeof(struct ltt_block_start_header) |
363 | + sizeof(struct ltt_trace_header_any)))) { |
f628823c |
364 | g_warning("unmap size : %u\n", |
9ea7b94b |
365 | PAGE_ALIGN(sizeof(struct ltt_block_start_header) |
366 | + sizeof(struct ltt_trace_header_any))); |
f628823c |
367 | perror("munmap error"); |
368 | g_assert(0); |
369 | } |
3aee1200 |
370 | tf->buffer.head = NULL; |
6cd62ccf |
371 | |
963b5f2d |
372 | //read the first block |
3aee1200 |
373 | if(map_block(tf,0)) { |
374 | perror("Cannot map block for tracefile"); |
375 | goto close_file; |
376 | } |
377 | |
378 | return 0; |
6cd62ccf |
379 | |
3aee1200 |
380 | /* Error */ |
381 | unmap_file: |
f628823c |
382 | if(munmap(tf->buffer.head, |
9ea7b94b |
383 | PAGE_ALIGN(sizeof(struct ltt_block_start_header) |
384 | + sizeof(struct ltt_trace_header_any)))) { |
f628823c |
385 | g_warning("unmap size : %u\n", |
9ea7b94b |
386 | PAGE_ALIGN(sizeof(struct ltt_block_start_header) |
387 | + sizeof(struct ltt_trace_header_any))); |
f628823c |
388 | perror("munmap error"); |
389 | g_assert(0); |
390 | } |
3aee1200 |
391 | close_file: |
3865ea09 |
392 | close(tf->fd); |
3aee1200 |
393 | end: |
394 | return -1; |
6cd62ccf |
395 | } |
396 | |
d3d34f49 |
397 | LttTrace *ltt_tracefile_get_trace(LttTracefile *tf) |
398 | { |
399 | return tf->trace; |
400 | } |
401 | |
3aee1200 |
402 | #if 0 |
6cd62ccf |
403 | /***************************************************************************** |
963b5f2d |
404 | *Open control and per cpu tracefiles |
6cd62ccf |
405 | ****************************************************************************/ |
406 | |
45e14832 |
407 | void ltt_tracefile_open_cpu(LttTrace *t, gchar * tracefile_name) |
6cd62ccf |
408 | { |
963b5f2d |
409 | LttTracefile * tf; |
410 | tf = ltt_tracefile_open(t,tracefile_name); |
4a6c8e36 |
411 | if(!tf) return; |
963b5f2d |
412 | t->per_cpu_tracefile_number++; |
413 | g_ptr_array_add(t->per_cpu_tracefiles, tf); |
6cd62ccf |
414 | } |
415 | |
45e14832 |
416 | gint ltt_tracefile_open_control(LttTrace *t, gchar * control_name) |
6cd62ccf |
417 | { |
963b5f2d |
418 | LttTracefile * tf; |
c02ea99f |
419 | LttEvent ev; |
963b5f2d |
420 | LttFacility * f; |
963b5f2d |
421 | void * pos; |
422 | FacilityLoad fLoad; |
8d1e6362 |
423 | unsigned int i; |
963b5f2d |
424 | |
425 | tf = ltt_tracefile_open(t,control_name); |
2a74fbf4 |
426 | if(!tf) { |
427 | g_warning("ltt_tracefile_open_control : bad file descriptor"); |
428 | return -1; |
429 | } |
963b5f2d |
430 | t->control_tracefile_number++; |
431 | g_ptr_array_add(t->control_tracefiles,tf); |
432 | |
433 | //parse facilities tracefile to get base_id |
542ceddd |
434 | if(strcmp(&control_name[strlen(control_name)-10],"facilities") ==0){ |
963b5f2d |
435 | while(1){ |
c02ea99f |
436 | if(!ltt_tracefile_read(tf,&ev)) return 0; // end of file |
40331ba8 |
437 | |
c02ea99f |
438 | if(ev.event_id == TRACE_FACILITY_LOAD){ |
439 | pos = ev.data; |
45e14832 |
440 | fLoad.name = (gchar*)pos; |
47a166fc |
441 | fLoad.checksum = *(LttChecksum*)(pos + strlen(fLoad.name)); |
cbd41522 |
442 | fLoad.base_code = *(guint32 *)(pos + strlen(fLoad.name) + sizeof(LttChecksum)); |
963b5f2d |
443 | |
444 | for(i=0;i<t->facility_number;i++){ |
445 | f = (LttFacility*)g_ptr_array_index(t->facilities,i); |
446 | if(strcmp(f->name,fLoad.name)==0 && fLoad.checksum==f->checksum){ |
447 | f->base_id = fLoad.base_code; |
448 | break; |
449 | } |
450 | } |
2a74fbf4 |
451 | if(i==t->facility_number) { |
8d1e6362 |
452 | g_warning("Facility: %s, checksum: %u is not found", |
453 | fLoad.name,(unsigned int)fLoad.checksum); |
2a74fbf4 |
454 | return -1; |
455 | } |
c02ea99f |
456 | }else if(ev.event_id == TRACE_BLOCK_START){ |
40331ba8 |
457 | continue; |
c02ea99f |
458 | }else if(ev.event_id == TRACE_BLOCK_END){ |
40331ba8 |
459 | break; |
2a74fbf4 |
460 | }else { |
8d1e6362 |
461 | g_warning("Not valid facilities trace file"); |
2a74fbf4 |
462 | return -1; |
463 | } |
963b5f2d |
464 | } |
465 | } |
2a74fbf4 |
466 | return 0; |
6cd62ccf |
467 | } |
3aee1200 |
468 | #endif //0 |
6cd62ccf |
469 | |
470 | /***************************************************************************** |
471 | *Function name |
963b5f2d |
472 | * ltt_tracefile_close: close a trace file, |
6cd62ccf |
473 | *Input params |
963b5f2d |
474 | * t : tracefile which will be closed |
6cd62ccf |
475 | ****************************************************************************/ |
476 | |
963b5f2d |
477 | void ltt_tracefile_close(LttTracefile *t) |
6cd62ccf |
478 | { |
f628823c |
479 | int page_size = getpagesize(); |
480 | |
3aee1200 |
481 | if(t->buffer.head != NULL) |
f628823c |
482 | if(munmap(t->buffer.head, PAGE_ALIGN(t->buf_size))) { |
483 | g_warning("unmap size : %u\n", |
484 | PAGE_ALIGN(t->buf_size)); |
485 | perror("munmap error"); |
486 | g_assert(0); |
487 | } |
488 | |
3865ea09 |
489 | close(t->fd); |
963b5f2d |
490 | } |
6cd62ccf |
491 | |
6cd62ccf |
492 | |
963b5f2d |
493 | /***************************************************************************** |
494 | *Get system information |
495 | ****************************************************************************/ |
3aee1200 |
496 | #if 0 |
45e14832 |
497 | gint getSystemInfo(LttSystemDescription* des, gchar * pathname) |
963b5f2d |
498 | { |
45e14832 |
499 | int fd; |
500 | GIOChannel *iochan; |
501 | gchar *buf = NULL; |
502 | gsize length; |
43da6a59 |
503 | |
504 | GMarkupParseContext * context; |
2a74fbf4 |
505 | GError * error = NULL; |
43da6a59 |
506 | GMarkupParser markup_parser = |
507 | { |
508 | parser_start_element, |
8d1e6362 |
509 | NULL, |
43da6a59 |
510 | parser_characters, |
511 | NULL, /* passthrough */ |
512 | NULL /* error */ |
513 | }; |
963b5f2d |
514 | |
45e14832 |
515 | fd = g_open(pathname, O_RDONLY, 0); |
516 | if(fd == -1){ |
2a74fbf4 |
517 | g_warning("Can not open file : %s\n", pathname); |
518 | return -1; |
6cd62ccf |
519 | } |
963b5f2d |
520 | |
45e14832 |
521 | iochan = g_io_channel_unix_new(fd); |
522 | |
43da6a59 |
523 | context = g_markup_parse_context_new(&markup_parser, 0, des,NULL); |
6cd62ccf |
524 | |
45e14832 |
525 | //while(fgets(buf,DIR_NAME_SIZE, fp) != NULL){ |
526 | while(g_io_channel_read_line(iochan, &buf, &length, NULL, &error) |
527 | != G_IO_STATUS_EOF) { |
528 | |
529 | if(error != NULL) { |
530 | g_warning("Can not read xml file: \n%s\n", error->message); |
531 | g_error_free(error); |
532 | } |
533 | if(!g_markup_parse_context_parse(context, buf, length, &error)){ |
2a74fbf4 |
534 | if(error != NULL) { |
535 | g_warning("Can not parse xml file: \n%s\n", error->message); |
536 | g_error_free(error); |
537 | } |
538 | g_markup_parse_context_free(context); |
45e14832 |
539 | |
540 | g_io_channel_shutdown(iochan, FALSE, &error); /* No flush */ |
541 | if(error != NULL) { |
542 | g_warning("Can not close file: \n%s\n", error->message); |
543 | g_error_free(error); |
544 | } |
545 | |
546 | close(fd); |
2a74fbf4 |
547 | return -1; |
43da6a59 |
548 | } |
963b5f2d |
549 | } |
2a74fbf4 |
550 | g_markup_parse_context_free(context); |
45e14832 |
551 | |
552 | g_io_channel_shutdown(iochan, FALSE, &error); /* No flush */ |
553 | if(error != NULL) { |
554 | g_warning("Can not close file: \n%s\n", error->message); |
555 | g_error_free(error); |
556 | } |
557 | |
558 | g_close(fd); |
559 | |
560 | g_free(buf); |
2a74fbf4 |
561 | return 0; |
6cd62ccf |
562 | } |
3aee1200 |
563 | #endif //0 |
6cd62ccf |
564 | |
565 | /***************************************************************************** |
963b5f2d |
566 | *The following functions get facility/tracefile information |
6cd62ccf |
567 | ****************************************************************************/ |
3aee1200 |
568 | #if 0 |
45e14832 |
569 | gint getFacilityInfo(LttTrace *t, gchar* eventdefs) |
6cd62ccf |
570 | { |
45e14832 |
571 | GDir * dir; |
572 | const gchar * name; |
8d1e6362 |
573 | unsigned int i,j; |
963b5f2d |
574 | LttFacility * f; |
575 | LttEventType * et; |
45e14832 |
576 | gchar fullname[DIR_NAME_SIZE]; |
577 | GError * error = NULL; |
578 | |
579 | dir = g_dir_open(eventdefs, 0, &error); |
963b5f2d |
580 | |
45e14832 |
581 | if(error != NULL) { |
582 | g_warning("Can not open directory: %s, %s\n", eventdefs, error->message); |
583 | g_error_free(error); |
2a74fbf4 |
584 | return -1; |
585 | } |
963b5f2d |
586 | |
45e14832 |
587 | while((name = g_dir_read_name(dir)) != NULL){ |
588 | if(!g_pattern_match_simple("*.xml", name)) continue; |
589 | strcpy(fullname,eventdefs); |
590 | strcat(fullname,name); |
591 | ltt_facility_open(t,fullname); |
592 | } |
593 | g_dir_close(dir); |
963b5f2d |
594 | |
963b5f2d |
595 | for(j=0;j<t->facility_number;j++){ |
8710c6c7 |
596 | f = (LttFacility*)g_ptr_array_index(t->facilities, j); |
963b5f2d |
597 | for(i=0; i<f->event_number; i++){ |
598 | et = f->events[i]; |
40331ba8 |
599 | setFieldsOffset(NULL, et, NULL, t); |
963b5f2d |
600 | } |
601 | } |
2a74fbf4 |
602 | return 0; |
963b5f2d |
603 | } |
3aee1200 |
604 | #endif //0 |
6cd62ccf |
605 | |
963b5f2d |
606 | /***************************************************************************** |
607 | *A trace is specified as a pathname to the directory containing all the |
608 | *associated data (control tracefiles, per cpu tracefiles, event |
609 | *descriptions...). |
610 | * |
611 | *When a trace is closed, all the associated facilities, types and fields |
612 | *are released as well. |
8d1e6362 |
613 | */ |
614 | |
615 | |
616 | /**************************************************************************** |
617 | * get_absolute_pathname |
803229fa |
618 | * |
8d1e6362 |
619 | * return the unique pathname in the system |
620 | * |
ef35d837 |
621 | * MD : Fixed this function so it uses realpath, dealing well with |
622 | * forgotten cases (.. were not used correctly before). |
803229fa |
623 | * |
963b5f2d |
624 | ****************************************************************************/ |
45e14832 |
625 | void get_absolute_pathname(const gchar *pathname, gchar * abs_pathname) |
9f797243 |
626 | { |
9f797243 |
627 | abs_pathname[0] = '\0'; |
803229fa |
628 | |
ef35d837 |
629 | if ( realpath (pathname, abs_pathname) != NULL) |
630 | return; |
631 | else |
632 | { |
8d1e6362 |
633 | /* error, return the original path unmodified */ |
ef35d837 |
634 | strcpy(abs_pathname, pathname); |
9f797243 |
635 | return; |
636 | } |
ef35d837 |
637 | return; |
9f797243 |
638 | } |
639 | |
3aee1200 |
640 | /* Search for something like : .*_.* |
641 | * |
642 | * The left side is the name, the right side is the number. |
643 | */ |
644 | |
645 | int get_tracefile_name_number(const gchar *raw_name, |
646 | GQuark *name, |
647 | guint *num) |
6cd62ccf |
648 | { |
3aee1200 |
649 | guint raw_name_len = strlen(raw_name); |
650 | gchar char_name[PATH_MAX]; |
3aee1200 |
651 | int i; |
652 | int underscore_pos; |
653 | long int cpu_num; |
654 | gchar *endptr; |
655 | |
656 | for(i=raw_name_len-1;i>=0;i--) { |
657 | if(raw_name[i] == '_') break; |
658 | } |
659 | if(i==0) /* Either not found or name length is 0 */ |
660 | return -1; |
661 | underscore_pos = i; |
963b5f2d |
662 | |
3aee1200 |
663 | cpu_num = strtol(raw_name+underscore_pos+1, &endptr, 10); |
664 | |
665 | if(endptr == raw_name+underscore_pos+1) |
666 | return -1; /* No digit */ |
667 | if(cpu_num == LONG_MIN || cpu_num == LONG_MAX) |
668 | return -1; /* underflow / overflow */ |
1a2ceb63 |
669 | |
3aee1200 |
670 | strncpy(char_name, raw_name, underscore_pos); |
1a2ceb63 |
671 | |
69bd59ed |
672 | char_name[underscore_pos] = '\0'; |
673 | |
3aee1200 |
674 | *name = g_quark_from_string(char_name); |
675 | *num = cpu_num; |
b333a76b |
676 | |
3aee1200 |
677 | return 0; |
678 | } |
963b5f2d |
679 | |
3aee1200 |
680 | |
3865ea09 |
681 | GData **ltt_trace_get_tracefiles_groups(LttTrace *trace) |
77175651 |
682 | { |
3865ea09 |
683 | return &trace->tracefiles; |
77175651 |
684 | } |
685 | |
686 | |
3865ea09 |
687 | void compute_tracefile_group(GQuark key_id, |
688 | GArray *group, |
689 | struct compute_tracefile_group_args *args) |
77175651 |
690 | { |
691 | int i; |
692 | LttTracefile *tf; |
693 | |
694 | for(i=0; i<group->len; i++) { |
695 | tf = &g_array_index (group, LttTracefile, i); |
696 | if(tf->cpu_online) |
3865ea09 |
697 | args->func(tf, args->func_args); |
77175651 |
698 | } |
699 | } |
700 | |
701 | |
3aee1200 |
702 | void ltt_tracefile_group_destroy(gpointer data) |
703 | { |
704 | GArray *group = (GArray *)data; |
705 | int i; |
706 | LttTracefile *tf; |
707 | |
708 | for(i=0; i<group->len; i++) { |
709 | tf = &g_array_index (group, LttTracefile, i); |
710 | if(tf->cpu_online) |
711 | ltt_tracefile_close(tf); |
712 | } |
713 | g_array_free(group, TRUE); |
6cd62ccf |
714 | } |
715 | |
3aee1200 |
716 | gboolean ltt_tracefile_group_has_cpu_online(gpointer data) |
49bf71b5 |
717 | { |
3aee1200 |
718 | GArray *group = (GArray *)data; |
719 | int i; |
720 | LttTracefile *tf; |
721 | |
722 | for(i=0; i<group->len; i++) { |
723 | tf = &g_array_index (group, LttTracefile, i); |
724 | if(tf->cpu_online) return 1; |
725 | } |
726 | return 0; |
49bf71b5 |
727 | } |
728 | |
729 | |
3aee1200 |
730 | /* Open each tracefile under a specific directory. Put them in a |
731 | * GData : permits to access them using their tracefile group pathname. |
732 | * i.e. access control/modules tracefile group by index : |
733 | * "control/module". |
3865ea09 |
734 | * |
735 | * relative path is the path relative to the trace root |
736 | * root path is the full path |
3aee1200 |
737 | * |
738 | * A tracefile group is simply an array where all the per cpu tracefiles sits. |
739 | */ |
740 | |
69bd59ed |
741 | static int open_tracefiles(LttTrace *trace, gchar *root_path, |
742 | gchar *relative_path) |
f7afe191 |
743 | { |
3aee1200 |
744 | DIR *dir = opendir(root_path); |
745 | struct dirent *entry; |
746 | struct stat stat_buf; |
747 | int ret; |
3865ea09 |
748 | |
69bd59ed |
749 | gchar path[PATH_MAX]; |
3aee1200 |
750 | int path_len; |
69bd59ed |
751 | gchar *path_ptr; |
3aee1200 |
752 | |
3865ea09 |
753 | int rel_path_len; |
69bd59ed |
754 | gchar rel_path[PATH_MAX]; |
755 | gchar *rel_path_ptr; |
cb03932a |
756 | LttTracefile tmp_tf; |
3865ea09 |
757 | |
3aee1200 |
758 | if(dir == NULL) { |
759 | perror(root_path); |
760 | return ENOENT; |
761 | } |
762 | |
763 | strncpy(path, root_path, PATH_MAX-1); |
764 | path_len = strlen(path); |
765 | path[path_len] = '/'; |
766 | path_len++; |
767 | path_ptr = path + path_len; |
768 | |
3865ea09 |
769 | strncpy(rel_path, relative_path, PATH_MAX-1); |
770 | rel_path_len = strlen(rel_path); |
771 | rel_path[rel_path_len] = '/'; |
772 | rel_path_len++; |
773 | rel_path_ptr = rel_path + rel_path_len; |
774 | |
3aee1200 |
775 | while((entry = readdir(dir)) != NULL) { |
776 | |
777 | if(entry->d_name[0] == '.') continue; |
778 | |
779 | strncpy(path_ptr, entry->d_name, PATH_MAX - path_len); |
3865ea09 |
780 | strncpy(rel_path_ptr, entry->d_name, PATH_MAX - rel_path_len); |
3aee1200 |
781 | |
782 | ret = stat(path, &stat_buf); |
783 | if(ret == -1) { |
784 | perror(path); |
785 | continue; |
786 | } |
787 | |
788 | g_debug("Tracefile file or directory : %s\n", path); |
789 | |
74a588bb |
790 | if(strcmp(rel_path, "/eventdefs") == 0) continue; |
791 | |
3aee1200 |
792 | if(S_ISDIR(stat_buf.st_mode)) { |
793 | |
794 | g_debug("Entering subdirectory...\n"); |
3865ea09 |
795 | ret = open_tracefiles(trace, path, rel_path); |
3aee1200 |
796 | if(ret < 0) continue; |
797 | } else if(S_ISREG(stat_buf.st_mode)) { |
3aee1200 |
798 | GQuark name; |
799 | guint num; |
800 | GArray *group; |
3aee1200 |
801 | |
3865ea09 |
802 | if(get_tracefile_name_number(rel_path, &name, &num)) |
3aee1200 |
803 | continue; /* invalid name */ |
3865ea09 |
804 | |
cb03932a |
805 | g_debug("Opening file.\n"); |
806 | if(ltt_tracefile_open(trace, path, &tmp_tf)) { |
807 | g_info("Error opening tracefile %s", path); |
808 | |
809 | continue; /* error opening the tracefile : bad magic number ? */ |
810 | } |
811 | |
3865ea09 |
812 | g_debug("Tracefile name is %s and number is %u", |
813 | g_quark_to_string(name), num); |
814 | |
cb03932a |
815 | tmp_tf.cpu_online = 1; |
816 | tmp_tf.cpu_num = num; |
d3d34f49 |
817 | tmp_tf.name = name; |
cb03932a |
818 | |
3865ea09 |
819 | group = g_datalist_id_get_data(&trace->tracefiles, name); |
3aee1200 |
820 | if(group == NULL) { |
821 | /* Elements are automatically cleared when the array is allocated. |
822 | * It makes the cpu_online variable set to 0 : cpu offline, by default. |
823 | */ |
824 | group = g_array_sized_new (FALSE, TRUE, sizeof(LttTracefile), 10); |
3865ea09 |
825 | g_datalist_id_set_data_full(&trace->tracefiles, name, |
3aee1200 |
826 | group, ltt_tracefile_group_destroy); |
827 | } |
cb03932a |
828 | |
3aee1200 |
829 | /* Add the per cpu tracefile to the named group */ |
830 | unsigned int old_len = group->len; |
831 | if(num+1 > old_len) |
832 | group = g_array_set_size(group, num+1); |
cb03932a |
833 | g_array_index (group, LttTracefile, num) = tmp_tf; |
3aee1200 |
834 | |
3aee1200 |
835 | } |
836 | } |
837 | |
838 | closedir(dir); |
839 | |
840 | return 0; |
f7afe191 |
841 | } |
842 | |
3aee1200 |
843 | /* ltt_get_facility_description |
844 | * |
29e7c5b3 |
845 | * Opens the file corresponding to the requested facility (identified by fac_id |
3aee1200 |
846 | * and checksum). |
847 | * |
848 | * The name searched is : %trace root%/eventdefs/facname_checksum.xml |
849 | * |
850 | * Returns 0 on success, or 1 on failure. |
851 | */ |
852 | |
853 | static int ltt_get_facility_description(LttFacility *f, |
854 | LttTrace *t, |
855 | LttTracefile *fac_tf) |
6cd62ccf |
856 | { |
3aee1200 |
857 | char desc_file_name[PATH_MAX]; |
858 | const gchar *text; |
859 | guint textlen; |
860 | gint err; |
3aee1200 |
861 | |
862 | text = g_quark_to_string(t->pathname); |
863 | textlen = strlen(text); |
864 | |
865 | if(textlen >= PATH_MAX) goto name_error; |
866 | strcpy(desc_file_name, text); |
867 | |
868 | text = "/eventdefs/"; |
869 | textlen+=strlen(text); |
870 | if(textlen >= PATH_MAX) goto name_error; |
871 | strcat(desc_file_name, text); |
872 | |
873 | text = g_quark_to_string(f->name); |
874 | textlen+=strlen(text); |
875 | if(textlen >= PATH_MAX) goto name_error; |
876 | strcat(desc_file_name, text); |
29e7c5b3 |
877 | #if 0 |
3aee1200 |
878 | text = "_"; |
879 | textlen+=strlen(text); |
880 | if(textlen >= PATH_MAX) goto name_error; |
881 | strcat(desc_file_name, text); |
963b5f2d |
882 | |
3aee1200 |
883 | err = snprintf(desc_file_name+textlen, PATH_MAX-textlen-1, |
884 | "%u", f->checksum); |
d2083cab |
885 | if(err < 0) goto name_error; |
3aee1200 |
886 | |
887 | textlen=strlen(desc_file_name); |
888 | |
29e7c5b3 |
889 | #endif //0 |
3aee1200 |
890 | text = ".xml"; |
891 | textlen+=strlen(text); |
892 | if(textlen >= PATH_MAX) goto name_error; |
893 | strcat(desc_file_name, text); |
29e7c5b3 |
894 | |
3aee1200 |
895 | err = ltt_facility_open(f, t, desc_file_name); |
896 | if(err) goto facility_error; |
3aee1200 |
897 | |
898 | return 0; |
899 | |
900 | facility_error: |
901 | name_error: |
902 | return 1; |
903 | } |
904 | |
905 | static void ltt_fac_ids_destroy(gpointer data) |
906 | { |
907 | GArray *fac_ids = (GArray *)data; |
963b5f2d |
908 | |
3aee1200 |
909 | g_array_free(fac_ids, TRUE); |
910 | } |
911 | |
912 | |
913 | /* Presumes the tracefile is already seeked at the beginning. It makes sense, |
914 | * because it must be done just after the opening */ |
915 | static int ltt_process_facility_tracefile(LttTracefile *tf) |
916 | { |
917 | int err; |
918 | LttFacility *fac; |
919 | GArray *fac_ids; |
cb03932a |
920 | guint i; |
921 | LttEventType *et; |
3aee1200 |
922 | |
923 | while(1) { |
924 | err = ltt_tracefile_read_seek(tf); |
925 | if(err == EPERM) goto seek_error; |
926 | else if(err == ERANGE) break; /* End of tracefile */ |
927 | |
928 | err = ltt_tracefile_read_update_event(tf); |
929 | if(err) goto update_error; |
930 | |
931 | /* We are on a facility load/or facility unload/ or heartbeat event */ |
932 | /* The rules are : |
933 | * * facility 0 is hardcoded : this is the core facility. It will be shown |
934 | * in the facility array though, and is shown as "loaded builtin" in the |
935 | * trace. |
936 | * It contains event : |
937 | * 0 : facility load |
938 | * 1 : facility unload |
939 | * 2 : state dump facility load |
d2083cab |
940 | * 3 : heartbeat |
3aee1200 |
941 | */ |
d2083cab |
942 | if(tf->event.facility_id != LTT_FACILITY_CORE) { |
943 | /* Should only contain core facility */ |
3aee1200 |
944 | g_warning("Error in processing facility file %s, " |
945 | "should not contain facility id %u.", g_quark_to_string(tf->name), |
946 | tf->event.facility_id); |
947 | err = EPERM; |
948 | goto fac_id_error; |
d2083cab |
949 | } else { |
3aee1200 |
950 | |
951 | struct LttFacilityLoad *fac_load_data; |
b77d1b57 |
952 | struct LttStateDumpFacilityLoad *fac_state_dump_load_data; |
3aee1200 |
953 | char *fac_name; |
743e50fd |
954 | void *pos; |
3aee1200 |
955 | |
956 | // FIXME align |
957 | switch((enum ltt_core_events)tf->event.event_id) { |
958 | case LTT_EVENT_FACILITY_LOAD: |
b77d1b57 |
959 | fac_name = (char*)(tf->event.data); |
d2083cab |
960 | g_debug("Doing LTT_EVENT_FACILITY_LOAD of facility %s", |
961 | fac_name); |
743e50fd |
962 | pos = (tf->event.data + strlen(fac_name) + 1); |
963 | pos += ltt_align((size_t)pos, sizeof(guint32), tf->has_alignment); |
964 | fac_load_data = (struct LttFacilityLoad *)pos; |
965 | |
3aee1200 |
966 | fac = &g_array_index (tf->trace->facilities_by_num, LttFacility, |
967 | ltt_get_uint32(LTT_GET_BO(tf), &fac_load_data->id)); |
950683f4 |
968 | /* facility may already exist if trace is paused/unpaused */ |
969 | if(fac->exists) continue; |
3aee1200 |
970 | fac->name = g_quark_from_string(fac_name); |
971 | fac->checksum = ltt_get_uint32(LTT_GET_BO(tf), |
972 | &fac_load_data->checksum); |
973 | fac->id = ltt_get_uint32(LTT_GET_BO(tf), &fac_load_data->id); |
974 | fac->pointer_size = ltt_get_uint32(LTT_GET_BO(tf), |
975 | &fac_load_data->pointer_size); |
f104d082 |
976 | fac->int_size = ltt_get_uint32(LTT_GET_BO(tf), |
977 | &fac_load_data->int_size); |
cb03932a |
978 | fac->long_size = ltt_get_uint32(LTT_GET_BO(tf), |
979 | &fac_load_data->long_size); |
eed2ef37 |
980 | fac->size_t_size = ltt_get_uint32(LTT_GET_BO(tf), |
3aee1200 |
981 | &fac_load_data->size_t_size); |
982 | fac->alignment = ltt_get_uint32(LTT_GET_BO(tf), |
2312de30 |
983 | &fac_load_data->has_alignment); |
3aee1200 |
984 | |
985 | if(ltt_get_facility_description(fac, tf->trace, tf)) |
cb03932a |
986 | continue; /* error opening description */ |
3aee1200 |
987 | |
988 | fac->trace = tf->trace; |
cb03932a |
989 | |
990 | /* Preset the field offsets */ |
991 | for(i=0; i<fac->events->len; i++){ |
992 | et = &g_array_index(fac->events, LttEventType, i); |
743e50fd |
993 | precompute_offsets(fac, et); |
cb03932a |
994 | } |
995 | |
3aee1200 |
996 | fac->exists = 1; |
997 | |
77175651 |
998 | fac_ids = g_datalist_id_get_data(&tf->trace->facilities_by_name, |
999 | fac->name); |
3aee1200 |
1000 | if(fac_ids == NULL) { |
1001 | fac_ids = g_array_sized_new (FALSE, TRUE, sizeof(guint), 1); |
1002 | g_datalist_id_set_data_full(&tf->trace->facilities_by_name, |
1003 | fac->name, |
1004 | fac_ids, ltt_fac_ids_destroy); |
1005 | } |
1006 | g_array_append_val(fac_ids, fac->id); |
1007 | |
1008 | break; |
1009 | case LTT_EVENT_FACILITY_UNLOAD: |
d2083cab |
1010 | g_debug("Doing LTT_EVENT_FACILITY_UNLOAD"); |
3aee1200 |
1011 | /* We don't care about unload : facilities ID are valid for the whole |
1012 | * trace. They simply won't be used after the unload. */ |
1013 | break; |
1014 | case LTT_EVENT_STATE_DUMP_FACILITY_LOAD: |
b77d1b57 |
1015 | fac_name = (char*)(tf->event.data); |
d2083cab |
1016 | g_debug("Doing LTT_EVENT_STATE_DUMP_FACILITY_LOAD of facility %s", |
1017 | fac_name); |
743e50fd |
1018 | pos = (tf->event.data + strlen(fac_name) + 1); |
1019 | pos += ltt_align((size_t)pos, sizeof(guint32), tf->has_alignment); |
1020 | fac_state_dump_load_data = (struct LttStateDumpFacilityLoad *)pos; |
1021 | |
3aee1200 |
1022 | fac = &g_array_index (tf->trace->facilities_by_num, LttFacility, |
b77d1b57 |
1023 | ltt_get_uint32(LTT_GET_BO(tf), &fac_state_dump_load_data->id)); |
950683f4 |
1024 | /* facility may already exist if trace is paused/unpaused */ |
1025 | if(fac->exists) continue; |
3aee1200 |
1026 | fac->name = g_quark_from_string(fac_name); |
1027 | fac->checksum = ltt_get_uint32(LTT_GET_BO(tf), |
d2083cab |
1028 | &fac_state_dump_load_data->checksum); |
ad34d116 |
1029 | fac->id = ltt_get_uint32(LTT_GET_BO(tf), |
1030 | &fac_state_dump_load_data->id); |
3aee1200 |
1031 | fac->pointer_size = ltt_get_uint32(LTT_GET_BO(tf), |
d2083cab |
1032 | &fac_state_dump_load_data->pointer_size); |
f104d082 |
1033 | fac->int_size = ltt_get_uint32(LTT_GET_BO(tf), |
1034 | &fac_state_dump_load_data->int_size); |
cb03932a |
1035 | fac->long_size = ltt_get_uint32(LTT_GET_BO(tf), |
1036 | &fac_state_dump_load_data->long_size); |
eed2ef37 |
1037 | fac->size_t_size = ltt_get_uint32(LTT_GET_BO(tf), |
d2083cab |
1038 | &fac_state_dump_load_data->size_t_size); |
3aee1200 |
1039 | fac->alignment = ltt_get_uint32(LTT_GET_BO(tf), |
2312de30 |
1040 | &fac_state_dump_load_data->has_alignment); |
3aee1200 |
1041 | if(ltt_get_facility_description(fac, tf->trace, tf)) |
cb03932a |
1042 | continue; /* error opening description */ |
3aee1200 |
1043 | |
1044 | fac->trace = tf->trace; |
1045 | |
cb03932a |
1046 | /* Preset the field offsets */ |
1047 | for(i=0; i<fac->events->len; i++){ |
1048 | et = &g_array_index(fac->events, LttEventType, i); |
743e50fd |
1049 | precompute_offsets(fac, et); |
cb03932a |
1050 | } |
1051 | |
3aee1200 |
1052 | fac->exists = 1; |
1053 | |
1054 | fac_ids = g_datalist_id_get_data(&tf->trace->facilities_by_name, |
1055 | fac->name); |
1056 | if(fac_ids == NULL) { |
1057 | fac_ids = g_array_sized_new (FALSE, TRUE, sizeof(guint), 1); |
1058 | g_datalist_id_set_data_full(&tf->trace->facilities_by_name, |
1059 | fac->name, |
1060 | fac_ids, ltt_fac_ids_destroy); |
1061 | } |
1062 | g_array_append_val(fac_ids, fac->id); |
1063 | |
1064 | break; |
1065 | case LTT_EVENT_HEARTBEAT: |
1066 | break; |
1067 | default: |
1068 | g_warning("Error in processing facility file %s, " |
1069 | "unknown event id %hhu in core facility.", |
1070 | g_quark_to_string(tf->name), |
1071 | tf->event.event_id); |
1072 | err = EPERM; |
1073 | goto event_id_error; |
1074 | } |
1075 | } |
963b5f2d |
1076 | } |
3aee1200 |
1077 | return 0; |
963b5f2d |
1078 | |
3aee1200 |
1079 | /* Error handling */ |
3aee1200 |
1080 | event_id_error: |
1081 | fac_id_error: |
1082 | update_error: |
1083 | seek_error: |
d2083cab |
1084 | g_warning("An error occured in facility tracefile parsing"); |
3aee1200 |
1085 | return err; |
6cd62ccf |
1086 | } |
1087 | |
963b5f2d |
1088 | |
3aee1200 |
1089 | LttTrace *ltt_trace_open(const gchar *pathname) |
1090 | { |
1091 | gchar abs_path[PATH_MAX]; |
1092 | LttTrace * t; |
1093 | LttTracefile *tf; |
1094 | GArray *group; |
b56dcdf2 |
1095 | int i, ret; |
16fcbb80 |
1096 | struct ltt_block_start_header *header; |
b56dcdf2 |
1097 | DIR *dir; |
1098 | struct dirent *entry; |
1099 | guint control_found = 0; |
1100 | guint eventdefs_found = 0; |
1101 | struct stat stat_buf; |
1102 | gchar path[PATH_MAX]; |
3aee1200 |
1103 | |
1104 | t = g_new(LttTrace, 1); |
1105 | if(!t) goto alloc_error; |
1106 | |
1107 | get_absolute_pathname(pathname, abs_path); |
1108 | t->pathname = g_quark_from_string(abs_path); |
1109 | |
3aee1200 |
1110 | g_datalist_init(&t->tracefiles); |
b56dcdf2 |
1111 | |
1112 | /* Test to see if it looks like a trace */ |
1113 | dir = opendir(abs_path); |
1114 | if(dir == NULL) { |
1115 | perror(abs_path); |
1116 | goto open_error; |
1117 | } |
1118 | while((entry = readdir(dir)) != NULL) { |
1119 | strcpy(path, abs_path); |
1120 | strcat(path, "/"); |
1121 | strcat(path, entry->d_name); |
1122 | ret = stat(path, &stat_buf); |
1123 | if(ret == -1) { |
1124 | perror(path); |
1125 | continue; |
1126 | } |
1127 | if(S_ISDIR(stat_buf.st_mode)) { |
1128 | if(strcmp(entry->d_name, "control") == 0) { |
1129 | control_found = 1; |
1130 | } |
1131 | if(strcmp(entry->d_name, "eventdefs") == 0) { |
1132 | eventdefs_found = 1; |
1133 | } |
1134 | } |
1135 | } |
1136 | closedir(dir); |
1137 | |
1138 | if(!control_found || !eventdefs_found) goto find_error; |
1139 | |
1140 | /* Open all the tracefiles */ |
e45551ac |
1141 | if(open_tracefiles(t, abs_path, "")) { |
1142 | g_warning("Error opening tracefile %s", abs_path); |
b56dcdf2 |
1143 | goto find_error; |
e45551ac |
1144 | } |
3aee1200 |
1145 | |
1146 | /* Prepare the facilities containers : array and mapping */ |
1147 | /* Array is zeroed : the "exists" field is set to false by default */ |
1148 | t->facilities_by_num = g_array_sized_new (FALSE, |
1149 | TRUE, sizeof(LttFacility), |
1150 | NUM_FACILITIES); |
1151 | t->facilities_by_num = g_array_set_size(t->facilities_by_num, NUM_FACILITIES); |
1152 | |
1153 | g_datalist_init(&t->facilities_by_name); |
1154 | |
1155 | /* Parse each trace control/facilitiesN files : get runtime fac. info */ |
1156 | group = g_datalist_id_get_data(&t->tracefiles, LTT_TRACEFILE_NAME_FACILITIES); |
1157 | if(group == NULL) { |
1158 | g_error("Trace %s has no facility tracefile", abs_path); |
3865ea09 |
1159 | g_assert(0); |
3aee1200 |
1160 | goto facilities_error; |
1161 | } |
1162 | |
16fcbb80 |
1163 | /* Get the trace information for the control/facility 0 tracefile */ |
1164 | g_assert(group->len > 0); |
1165 | tf = &g_array_index (group, LttTracefile, 0); |
1166 | header = (struct ltt_block_start_header*)tf->buffer.head; |
51551c6f |
1167 | g_assert(parse_trace_header(header->trace, |
1168 | tf, t) == 0); |
b56dcdf2 |
1169 | |
1170 | t->num_cpu = group->len; |
16fcbb80 |
1171 | |
3aee1200 |
1172 | for(i=0; i<group->len; i++) { |
1173 | tf = &g_array_index (group, LttTracefile, i); |
1174 | if(ltt_process_facility_tracefile(tf)) |
1175 | goto facilities_error; |
1176 | } |
3aee1200 |
1177 | |
1178 | return t; |
1179 | |
1180 | /* Error handling */ |
1181 | facilities_error: |
1182 | g_datalist_clear(&t->facilities_by_name); |
1183 | g_array_free(t->facilities_by_num, TRUE); |
b56dcdf2 |
1184 | find_error: |
3aee1200 |
1185 | g_datalist_clear(&t->tracefiles); |
b56dcdf2 |
1186 | open_error: |
3aee1200 |
1187 | g_free(t); |
1188 | alloc_error: |
1189 | return NULL; |
1190 | |
1191 | } |
6cd62ccf |
1192 | |
826f1ab2 |
1193 | GQuark ltt_trace_name(const LttTrace *t) |
6cd62ccf |
1194 | { |
3aee1200 |
1195 | return t->pathname; |
6cd62ccf |
1196 | } |
1197 | |
6cd62ccf |
1198 | |
3aee1200 |
1199 | /****************************************************************************** |
1200 | * When we copy a trace, we want all the opening actions to happen again : |
1201 | * the trace will be reopened and totally independant from the original. |
1202 | * That's why we call ltt_trace_open. |
1203 | *****************************************************************************/ |
1204 | LttTrace *ltt_trace_copy(LttTrace *self) |
963b5f2d |
1205 | { |
3aee1200 |
1206 | return ltt_trace_open(g_quark_to_string(self->pathname)); |
963b5f2d |
1207 | } |
1208 | |
3aee1200 |
1209 | void ltt_trace_close(LttTrace *t) |
6cd62ccf |
1210 | { |
cb03932a |
1211 | guint i; |
1212 | LttFacility *fac; |
1213 | |
1214 | for(i=0; i<t->facilities_by_num->len; i++) { |
1215 | fac = &g_array_index (t->facilities_by_num, LttFacility, i); |
1216 | if(fac->exists) |
1217 | ltt_facility_close(fac); |
1218 | } |
1219 | |
3aee1200 |
1220 | g_datalist_clear(&t->facilities_by_name); |
1221 | g_array_free(t->facilities_by_num, TRUE); |
1222 | g_datalist_clear(&t->tracefiles); |
1223 | g_free(t); |
6cd62ccf |
1224 | } |
1225 | |
3aee1200 |
1226 | |
6cd62ccf |
1227 | /***************************************************************************** |
3aee1200 |
1228 | *Get the system description of the trace |
6cd62ccf |
1229 | ****************************************************************************/ |
1230 | |
3aee1200 |
1231 | LttFacility *ltt_trace_facility_by_id(LttTrace *t, guint8 id) |
6cd62ccf |
1232 | { |
3aee1200 |
1233 | g_assert(id < t->facilities_by_num->len); |
1234 | return &g_array_index(t->facilities_by_num, LttFacility, id); |
1235 | } |
1236 | |
1237 | /* ltt_trace_facility_get_by_name |
1238 | * |
1239 | * Returns the GArray of facility indexes. All the fac_ids that matches the |
1240 | * requested facility name. |
1241 | * |
1242 | * If name is not found, returns NULL. |
1243 | */ |
1244 | GArray *ltt_trace_facility_get_by_name(LttTrace *t, GQuark name) |
1245 | { |
1246 | return g_datalist_id_get_data(&t->facilities_by_name, name); |
6cd62ccf |
1247 | } |
1248 | |
1249 | /***************************************************************************** |
963b5f2d |
1250 | * Functions to discover all the event types in the trace |
6cd62ccf |
1251 | ****************************************************************************/ |
1252 | |
3aee1200 |
1253 | #if 0 |
963b5f2d |
1254 | unsigned ltt_trace_eventtype_number(LttTrace *t) |
6cd62ccf |
1255 | { |
8d1e6362 |
1256 | unsigned int i; |
963b5f2d |
1257 | unsigned count = 0; |
dc1cad90 |
1258 | unsigned int num = t->facility_number; |
963b5f2d |
1259 | LttFacility * f; |
dc1cad90 |
1260 | |
1261 | for(i=0;i<num;i++){ |
963b5f2d |
1262 | f = (LttFacility*)g_ptr_array_index(t->facilities, i); |
1263 | count += f->event_number; |
1264 | } |
1265 | return count; |
6cd62ccf |
1266 | } |
3aee1200 |
1267 | #endif //0 |
6cd62ccf |
1268 | |
3aee1200 |
1269 | #if 0 |
1270 | //use an iteration on all the trace facilities, and inside iteration on all the |
1271 | //event types in each facilities instead. |
963b5f2d |
1272 | LttEventType *ltt_trace_eventtype_get(LttTrace *t, unsigned evId) |
6cd62ccf |
1273 | { |
6e8c19d4 |
1274 | LttEventType *event_type; |
1275 | |
963b5f2d |
1276 | LttFacility * f; |
1277 | f = ltt_trace_facility_by_id(t,evId); |
6e8c19d4 |
1278 | |
1279 | if(unlikely(!f)) event_type = NULL; |
1280 | else event_type = f->events[evId - f->base_id]; |
1281 | |
1282 | return event_type; |
6cd62ccf |
1283 | } |
3aee1200 |
1284 | #endif //0 |
6cd62ccf |
1285 | |
3aee1200 |
1286 | #if 0 |
6cd62ccf |
1287 | /***************************************************************************** |
3aee1200 |
1288 | * ltt_trace_find_tracefile |
1289 | * |
1290 | * Find a tracefile by name and index in the group. |
1291 | * |
1292 | * Returns a pointer to the tracefiles, else NULL. |
6cd62ccf |
1293 | ****************************************************************************/ |
6cd62ccf |
1294 | |
3aee1200 |
1295 | LttTracefile *ltt_trace_find_tracefile(LttTrace *t, const gchar *name) |
6cd62ccf |
1296 | { |
6cd62ccf |
1297 | } |
3aee1200 |
1298 | #endif //0 |
6cd62ccf |
1299 | |
1300 | /***************************************************************************** |
3aee1200 |
1301 | * Get the start time and end time of the trace |
6cd62ccf |
1302 | ****************************************************************************/ |
1303 | |
3aee1200 |
1304 | static void ltt_tracefile_time_span_get(LttTracefile *tf, |
1305 | LttTime *start, LttTime *end) |
6cd62ccf |
1306 | { |
3aee1200 |
1307 | int err; |
6cd62ccf |
1308 | |
3aee1200 |
1309 | err = map_block(tf, 0); |
1310 | if(unlikely(err)) { |
1311 | g_error("Can not map block"); |
1312 | *start = ltt_time_infinite; |
1313 | } else |
1314 | *start = tf->buffer.begin.timestamp; |
1315 | |
1316 | err = map_block(tf, tf->num_blocks - 1); /* Last block */ |
1317 | if(unlikely(err)) { |
1318 | g_error("Can not map block"); |
1319 | *end = ltt_time_zero; |
1320 | } else |
1321 | *end = tf->buffer.end.timestamp; |
6cd62ccf |
1322 | } |
1323 | |
3aee1200 |
1324 | struct tracefile_time_span_get_args { |
1325 | LttTrace *t; |
1326 | LttTime *start; |
1327 | LttTime *end; |
1328 | }; |
963b5f2d |
1329 | |
3aee1200 |
1330 | static void group_time_span_get(GQuark name, gpointer data, gpointer user_data) |
963b5f2d |
1331 | { |
3aee1200 |
1332 | struct tracefile_time_span_get_args *args = |
1333 | (struct tracefile_time_span_get_args*)user_data; |
1334 | |
1335 | GArray *group = (GArray *)data; |
1336 | int i; |
1337 | LttTracefile *tf; |
1338 | LttTime tmp_start; |
1339 | LttTime tmp_end; |
1340 | |
1341 | for(i=0; i<group->len; i++) { |
1342 | tf = &g_array_index (group, LttTracefile, i); |
1343 | if(tf->cpu_online) { |
1344 | ltt_tracefile_time_span_get(tf, &tmp_start, &tmp_end); |
1345 | if(ltt_time_compare(*args->start, tmp_start)>0) *args->start = tmp_start; |
1346 | if(ltt_time_compare(*args->end, tmp_end)<0) *args->end = tmp_end; |
1347 | } |
1348 | } |
6cd62ccf |
1349 | } |
1350 | |
487ad181 |
1351 | void ltt_trace_time_span_get(LttTrace *t, LttTime *start, LttTime *end) |
1352 | { |
3aee1200 |
1353 | LttTime min_start = ltt_time_infinite; |
1354 | LttTime max_end = ltt_time_zero; |
1355 | struct tracefile_time_span_get_args args = { t, &min_start, &max_end }; |
487ad181 |
1356 | |
3aee1200 |
1357 | g_datalist_foreach(&t->tracefiles, &group_time_span_get, &args); |
1358 | |
1359 | if(start != NULL) *start = min_start; |
1360 | if(end != NULL) *end = max_end; |
1361 | |
487ad181 |
1362 | } |
1363 | |
1364 | |
6cd62ccf |
1365 | /***************************************************************************** |
963b5f2d |
1366 | *Get the name of a tracefile |
6cd62ccf |
1367 | ****************************************************************************/ |
1368 | |
348c6ba8 |
1369 | GQuark ltt_tracefile_name(const LttTracefile *tf) |
6cd62ccf |
1370 | { |
963b5f2d |
1371 | return tf->name; |
6cd62ccf |
1372 | } |
1373 | |
348c6ba8 |
1374 | GQuark ltt_tracefile_long_name(const LttTracefile *tf) |
1375 | { |
1376 | return tf->long_name; |
1377 | } |
1378 | |
1379 | |
d3d34f49 |
1380 | |
1381 | guint ltt_tracefile_num(LttTracefile *tf) |
1382 | { |
1383 | return tf->cpu_num; |
1384 | } |
1385 | |
80da81ad |
1386 | /***************************************************************************** |
1387 | * Get the number of blocks in the tracefile |
1388 | ****************************************************************************/ |
1389 | |
3aee1200 |
1390 | guint ltt_tracefile_block_number(LttTracefile *tf) |
80da81ad |
1391 | { |
3aee1200 |
1392 | return tf->num_blocks; |
80da81ad |
1393 | } |
1394 | |
caf7a67a |
1395 | |
3aee1200 |
1396 | /* Seek to the first event in a tracefile that has a time equal or greater than |
1397 | * the time passed in parameter. |
1398 | * |
1399 | * If the time parameter is outside the tracefile time span, seek to the first |
27304273 |
1400 | * event or if after, return ERANGE. |
3aee1200 |
1401 | * |
1402 | * If the time parameter is before the first event, we have to seek specially to |
1403 | * there. |
1404 | * |
27304273 |
1405 | * If the time is after the end of the trace, return ERANGE. |
3aee1200 |
1406 | * |
1407 | * Do a binary search to find the right block, then a sequential search in the |
1408 | * block to find the event. |
1409 | * |
1410 | * In the special case where the time requested fits inside a block that has no |
1411 | * event corresponding to the requested time, the first event of the next block |
1412 | * will be seeked. |
1413 | * |
1414 | * IMPORTANT NOTE : // FIXME everywhere... |
1415 | * |
1416 | * You MUST NOT do a ltt_tracefile_read right after a ltt_tracefile_seek_time : |
1417 | * you will jump over an event if you do. |
1418 | * |
1419 | * Return value : 0 : no error, the tf->event can be used |
27304273 |
1420 | * ERANGE : time if after the last event of the trace |
3aee1200 |
1421 | * otherwise : this is an error. |
1422 | * |
1423 | * */ |
1424 | |
1425 | int ltt_tracefile_seek_time(LttTracefile *tf, LttTime time) |
1426 | { |
1427 | int ret = 0; |
1428 | int err; |
1429 | unsigned int block_num, high, low; |
1430 | |
1431 | /* seek at the beginning of trace */ |
1432 | err = map_block(tf, 0); /* First block */ |
1433 | if(unlikely(err)) { |
1434 | g_error("Can not map block"); |
1435 | goto fail; |
caf7a67a |
1436 | } |
1437 | |
3aee1200 |
1438 | /* If the time is lower or equal the beginning of the trace, |
1439 | * go to the first event. */ |
1440 | if(ltt_time_compare(time, tf->buffer.begin.timestamp) <= 0) { |
1441 | ret = ltt_tracefile_read(tf); |
27304273 |
1442 | if(ret == ERANGE) goto range; |
1443 | else if (ret) goto fail; |
3aee1200 |
1444 | goto found; /* There is either no event in the trace or the event points |
1445 | to the first event in the trace */ |
1446 | } |
caf7a67a |
1447 | |
3aee1200 |
1448 | err = map_block(tf, tf->num_blocks - 1); /* Last block */ |
1449 | if(unlikely(err)) { |
1450 | g_error("Can not map block"); |
1451 | goto fail; |
caf7a67a |
1452 | } |
6cd62ccf |
1453 | |
27304273 |
1454 | /* If the time is after the end of the trace, return ERANGE. */ |
1455 | if(ltt_time_compare(time, tf->buffer.end.timestamp) > 0) { |
1456 | goto range; |
3aee1200 |
1457 | } |
62e55dd6 |
1458 | |
3aee1200 |
1459 | /* Binary search the block */ |
1460 | high = tf->num_blocks - 1; |
1461 | low = 0; |
1462 | |
1463 | while(1) { |
1464 | block_num = ((high-low) / 2) + low; |
1465 | |
1466 | err = map_block(tf, block_num); |
1467 | if(unlikely(err)) { |
1468 | g_error("Can not map block"); |
1469 | goto fail; |
db55eaae |
1470 | } |
3aee1200 |
1471 | if(high == low) { |
1472 | /* We cannot divide anymore : this is what would happen if the time |
1473 | * requested was exactly between two consecutive buffers'end and start |
1474 | * timestamps. This is also what would happend if we didn't deal with out |
1475 | * of span cases prior in this function. */ |
1476 | /* The event is right in the buffer! |
1477 | * (or in the next buffer first event) */ |
1478 | while(1) { |
1479 | ret = ltt_tracefile_read(tf); |
27304273 |
1480 | if(ret == ERANGE) goto range; /* ERANGE or EPERM */ |
3aee1200 |
1481 | else if(ret) goto fail; |
1482 | |
d9e13a0f |
1483 | if(ltt_time_compare(time, tf->event.event_time) <= 0) |
e45551ac |
1484 | goto found; |
3aee1200 |
1485 | } |
1486 | |
27304273 |
1487 | } else if(ltt_time_compare(time, tf->buffer.begin.timestamp) < 0) { |
3aee1200 |
1488 | /* go to lower part */ |
b1369bef |
1489 | high = block_num - 1; |
3aee1200 |
1490 | } else if(ltt_time_compare(time, tf->buffer.end.timestamp) > 0) { |
1491 | /* go to higher part */ |
b1369bef |
1492 | low = block_num + 1; |
3aee1200 |
1493 | } else {/* The event is right in the buffer! |
1494 | (or in the next buffer first event) */ |
1495 | while(1) { |
27304273 |
1496 | ret = ltt_tracefile_read(tf); |
1497 | if(ret == ERANGE) goto range; /* ERANGE or EPERM */ |
3aee1200 |
1498 | else if(ret) goto fail; |
1499 | |
d9e13a0f |
1500 | if(ltt_time_compare(time, tf->event.event_time) <= 0) |
3aee1200 |
1501 | break; |
6cd62ccf |
1502 | } |
3aee1200 |
1503 | goto found; |
6cd62ccf |
1504 | } |
6cd62ccf |
1505 | } |
3aee1200 |
1506 | |
1507 | found: |
1508 | return 0; |
27304273 |
1509 | range: |
1510 | return ERANGE; |
3aee1200 |
1511 | |
1512 | /* Error handling */ |
1513 | fail: |
1514 | g_error("ltt_tracefile_seek_time failed on tracefile %s", |
1515 | g_quark_to_string(tf->name)); |
1516 | return EPERM; |
6cd62ccf |
1517 | } |
1518 | |
80da81ad |
1519 | |
3aee1200 |
1520 | int ltt_tracefile_seek_position(LttTracefile *tf, const LttEventPosition *ep) { |
80da81ad |
1521 | |
3aee1200 |
1522 | int err; |
1523 | |
1524 | if(ep->tracefile != tf) { |
1525 | goto fail; |
80da81ad |
1526 | } |
1527 | |
3aee1200 |
1528 | err = map_block(tf, ep->block); |
1529 | if(unlikely(err)) { |
1530 | g_error("Can not map block"); |
1531 | goto fail; |
1532 | } |
1533 | |
1534 | tf->event.offset = ep->offset; |
18206708 |
1535 | |
3aee1200 |
1536 | err = ltt_tracefile_read_update_event(tf); |
1537 | if(err) goto fail; |
1538 | err = ltt_tracefile_read_op(tf); |
1539 | if(err) goto fail; |
80da81ad |
1540 | |
a0c1f622 |
1541 | return 0; |
3aee1200 |
1542 | |
1543 | fail: |
1544 | g_error("ltt_tracefile_seek_time failed on tracefile %s", |
1545 | g_quark_to_string(tf->name)); |
a0c1f622 |
1546 | return 1; |
3aee1200 |
1547 | } |
1548 | |
1549 | /* Calculate the real event time based on the buffer boundaries */ |
1550 | LttTime ltt_interpolate_time(LttTracefile *tf, LttEvent *event) |
1551 | { |
1552 | LttTime time; |
1553 | |
1554 | g_assert(tf->trace->has_tsc); |
1555 | |
791dffa6 |
1556 | // time = ltt_time_from_uint64( |
1557 | // cycles_2_ns(tf, (guint64)(tf->buffer.tsc - tf->buffer.begin.cycle_count))); |
88612d17 |
1558 | time = ltt_time_from_uint64( |
1559 | (double)(tf->buffer.tsc - tf->trace->start_tsc) * 1000000.0 |
791dffa6 |
1560 | / (double)tf->trace->start_freq); |
1561 | //time = ltt_time_add(tf->buffer.begin.timestamp, time); |
88612d17 |
1562 | time = ltt_time_add(tf->trace->start_time_from_tsc, time); |
3aee1200 |
1563 | |
1564 | return time; |
80da81ad |
1565 | } |
1566 | |
eed2ef37 |
1567 | |
1568 | /* Get the current event of the tracefile : valid until the next read */ |
1569 | LttEvent *ltt_tracefile_get_event(LttTracefile *tf) |
1570 | { |
1571 | return &tf->event; |
1572 | } |
1573 | |
1574 | |
1575 | |
6cd62ccf |
1576 | /***************************************************************************** |
1577 | *Function name |
3aee1200 |
1578 | * ltt_tracefile_read : Read the next event in the tracefile |
6cd62ccf |
1579 | *Input params |
1580 | * t : tracefile |
1581 | *Return value |
3aee1200 |
1582 | * |
1583 | * Returns 0 if an event can be used in tf->event. |
d822520b |
1584 | * Returns ERANGE on end of trace. The event in tf->event still can be used |
1585 | * (if the last block was not empty). |
3aee1200 |
1586 | * Returns EPERM on error. |
1587 | * |
1588 | * This function does make the tracefile event structure point to the event |
1589 | * currently pointed to by the tf->event. |
1590 | * |
1591 | * Note : you must call a ltt_tracefile_seek to the beginning of the trace to |
1592 | * reinitialize it after an error if you want results to be coherent. |
1593 | * It would be the case if a end of trace last buffer has no event : the end |
1594 | * of trace wouldn't be returned, but an error. |
1595 | * We make the assumption there is at least one event per buffer. |
6cd62ccf |
1596 | ****************************************************************************/ |
1597 | |
3aee1200 |
1598 | int ltt_tracefile_read(LttTracefile *tf) |
6cd62ccf |
1599 | { |
963b5f2d |
1600 | int err; |
6cd62ccf |
1601 | |
3aee1200 |
1602 | err = ltt_tracefile_read_seek(tf); |
1603 | if(err) return err; |
1604 | err = ltt_tracefile_read_update_event(tf); |
1605 | if(err) return err; |
1606 | err = ltt_tracefile_read_op(tf); |
1607 | if(err) return err; |
1608 | |
1609 | return 0; |
1610 | } |
1611 | |
1612 | int ltt_tracefile_read_seek(LttTracefile *tf) |
1613 | { |
1614 | int err; |
1615 | |
1616 | /* Get next buffer until we finally have an event, or end of trace */ |
1617 | while(1) { |
1618 | err = ltt_seek_next_event(tf); |
1619 | if(unlikely(err == ENOPROTOOPT)) { |
1620 | return EPERM; |
bdc36259 |
1621 | } |
bdc36259 |
1622 | |
3aee1200 |
1623 | /* Are we at the end of the buffer ? */ |
1624 | if(err == ERANGE) { |
1625 | if(unlikely(tf->buffer.index == tf->num_blocks-1)){ /* end of trace ? */ |
1626 | return ERANGE; |
1627 | } else { |
1628 | /* get next block */ |
1629 | err = map_block(tf, tf->buffer.index + 1); |
1630 | if(unlikely(err)) { |
1631 | g_error("Can not map block"); |
1632 | return EPERM; |
1633 | } |
1634 | } |
1635 | } else break; /* We found an event ! */ |
1636 | } |
2dee981d |
1637 | |
3aee1200 |
1638 | return 0; |
1639 | } |
18206708 |
1640 | |
1641 | |
3aee1200 |
1642 | /* do specific operation on events */ |
1643 | int ltt_tracefile_read_op(LttTracefile *tf) |
1644 | { |
3aee1200 |
1645 | LttEvent *event; |
1646 | |
1647 | event = &tf->event; |
18206708 |
1648 | |
3aee1200 |
1649 | /* do event specific operation */ |
40331ba8 |
1650 | |
3aee1200 |
1651 | /* do something if its an heartbeat event : increment the heartbeat count */ |
1652 | //if(event->facility_id == LTT_FACILITY_CORE) |
1653 | // if(event->event_id == LTT_EVENT_HEARTBEAT) |
1654 | // tf->cur_heart_beat_number++; |
1655 | |
1656 | return 0; |
6cd62ccf |
1657 | } |
1658 | |
6cd62ccf |
1659 | |
3aee1200 |
1660 | /* same as ltt_tracefile_read, but does not seek to the next event nor call |
1661 | * event specific operation. */ |
1662 | int ltt_tracefile_read_update_event(LttTracefile *tf) |
6cd62ccf |
1663 | { |
3aee1200 |
1664 | void * pos; |
1665 | LttEvent *event; |
1666 | |
1667 | event = &tf->event; |
eed2ef37 |
1668 | pos = tf->buffer.head + event->offset; |
3aee1200 |
1669 | |
1670 | /* Read event header */ |
1671 | |
f104d082 |
1672 | /* Align the head */ |
2312de30 |
1673 | pos += ltt_align((size_t)pos, tf->trace->arch_size, tf->has_alignment); |
3aee1200 |
1674 | |
1675 | if(tf->trace->has_tsc) { |
16fcbb80 |
1676 | if(tf->trace->has_heartbeat) { |
1677 | event->time.timestamp = ltt_get_uint32(LTT_GET_BO(tf), |
1678 | pos); |
1679 | /* 32 bits -> 64 bits tsc */ |
1680 | /* note : still works for seek and non seek cases. */ |
1681 | if(event->time.timestamp < (0xFFFFFFFFULL&tf->buffer.tsc)) { |
1682 | tf->buffer.tsc = ((tf->buffer.tsc&0xFFFFFFFF00000000ULL) |
1683 | + 0x100000000ULL) |
1684 | | (guint64)event->time.timestamp; |
1685 | event->tsc = tf->buffer.tsc; |
1686 | } else { |
1687 | /* no overflow */ |
1688 | tf->buffer.tsc = (tf->buffer.tsc&0xFFFFFFFF00000000ULL) |
1689 | | (guint64)event->time.timestamp; |
1690 | event->tsc = tf->buffer.tsc; |
1691 | } |
1692 | pos += sizeof(guint32); |
3aee1200 |
1693 | } else { |
16fcbb80 |
1694 | event->tsc = ltt_get_uint64(LTT_GET_BO(tf), pos); |
1695 | tf->buffer.tsc = event->tsc; |
1696 | pos += sizeof(guint64); |
3aee1200 |
1697 | } |
16fcbb80 |
1698 | |
3aee1200 |
1699 | event->event_time = ltt_interpolate_time(tf, event); |
3aee1200 |
1700 | } else { |
1701 | event->time.delta.tv_sec = 0; |
1702 | event->time.delta.tv_nsec = ltt_get_uint32(LTT_GET_BO(tf), |
1703 | pos) * NSEC_PER_USEC; |
1704 | tf->buffer.tsc = 0; |
1705 | event->tsc = tf->buffer.tsc; |
1706 | |
1707 | event->event_time = ltt_time_add(tf->buffer.begin.timestamp, |
1708 | event->time.delta); |
1709 | pos += sizeof(guint32); |
1710 | } |
1711 | |
eed2ef37 |
1712 | event->facility_id = *(guint8*)pos; |
3aee1200 |
1713 | pos += sizeof(guint8); |
1714 | |
eed2ef37 |
1715 | event->event_id = *(guint8*)pos; |
3aee1200 |
1716 | pos += sizeof(guint8); |
1717 | |
b77d1b57 |
1718 | event->event_size = ltt_get_uint16(LTT_GET_BO(tf), pos); |
1719 | pos += sizeof(guint16); |
1720 | |
f104d082 |
1721 | /* Align the head */ |
2312de30 |
1722 | pos += ltt_align((size_t)pos, tf->trace->arch_size, tf->has_alignment); |
f104d082 |
1723 | |
3aee1200 |
1724 | event->data = pos; |
1725 | |
77175651 |
1726 | /* get the data size and update the event fields with the current |
1727 | * information */ |
eed2ef37 |
1728 | ltt_update_event_size(tf); |
77175651 |
1729 | |
3aee1200 |
1730 | return 0; |
6cd62ccf |
1731 | } |
1732 | |
507915ee |
1733 | |
6cd62ccf |
1734 | /**************************************************************************** |
1735 | *Function name |
3aee1200 |
1736 | * map_block : map a block from the file |
6cd62ccf |
1737 | *Input Params |
1738 | * lttdes : ltt trace file |
1739 | * whichBlock : the block which will be read |
1740 | *return value |
1741 | * 0 : success |
1742 | * EINVAL : lseek fail |
1743 | * EIO : can not read from the file |
1744 | ****************************************************************************/ |
1745 | |
3aee1200 |
1746 | static gint map_block(LttTracefile * tf, guint block_num) |
6cd62ccf |
1747 | { |
b77d1b57 |
1748 | int page_size = getpagesize(); |
3aee1200 |
1749 | struct ltt_block_start_header *header; |
1750 | |
1751 | g_assert(block_num < tf->num_blocks); |
6cd62ccf |
1752 | |
f628823c |
1753 | if(tf->buffer.head != NULL) { |
1754 | if(munmap(tf->buffer.head, PAGE_ALIGN(tf->buf_size))) { |
1755 | g_warning("unmap size : %u\n", |
1756 | PAGE_ALIGN(tf->buf_size)); |
1757 | perror("munmap error"); |
1758 | g_assert(0); |
1759 | } |
1760 | } |
1761 | |
ac849774 |
1762 | |
3aee1200 |
1763 | /* Multiple of pages aligned head */ |
b77d1b57 |
1764 | tf->buffer.head = mmap(0, |
f628823c |
1765 | PAGE_ALIGN(tf->buf_size), |
b77d1b57 |
1766 | PROT_READ, MAP_PRIVATE, tf->fd, |
f628823c |
1767 | PAGE_ALIGN((off_t)tf->buf_size * (off_t)block_num)); |
3aee1200 |
1768 | |
3865ea09 |
1769 | if(tf->buffer.head == MAP_FAILED) { |
3aee1200 |
1770 | perror("Error in allocating memory for buffer of tracefile"); |
3865ea09 |
1771 | g_assert(0); |
3aee1200 |
1772 | goto map_error; |
6cd62ccf |
1773 | } |
3865ea09 |
1774 | g_assert( ( (guint)tf->buffer.head&(8-1) ) == 0); // make sure it's aligned. |
3aee1200 |
1775 | |
6cd62ccf |
1776 | |
3aee1200 |
1777 | tf->buffer.index = block_num; |
1778 | |
1779 | header = (struct ltt_block_start_header*)tf->buffer.head; |
1780 | |
791dffa6 |
1781 | #if 0 |
986e2a7c |
1782 | tf->buffer.begin.timestamp = ltt_time_add( |
1783 | ltt_time_from_uint64( |
1784 | ltt_get_uint64(LTT_GET_BO(tf), |
1785 | &header->begin.timestamp) |
1786 | - tf->trace->start_monotonic), |
1787 | tf->trace->start_time); |
791dffa6 |
1788 | #endif //0 |
348c6ba8 |
1789 | //g_debug("block %u begin : %lu.%lu", block_num, |
1790 | // tf->buffer.begin.timestamp.tv_sec, tf->buffer.begin.timestamp.tv_nsec); |
3aee1200 |
1791 | tf->buffer.begin.cycle_count = ltt_get_uint64(LTT_GET_BO(tf), |
1792 | &header->begin.cycle_count); |
986e2a7c |
1793 | tf->buffer.begin.freq = ltt_get_uint64(LTT_GET_BO(tf), |
1794 | &header->begin.freq); |
791dffa6 |
1795 | tf->buffer.begin.timestamp = ltt_time_add( |
1796 | ltt_time_from_uint64( |
88612d17 |
1797 | (double)(tf->buffer.begin.cycle_count |
1798 | - tf->trace->start_tsc) * 1000000.0 |
791dffa6 |
1799 | / (double)tf->trace->start_freq), |
88612d17 |
1800 | tf->trace->start_time_from_tsc); |
791dffa6 |
1801 | #if 0 |
1802 | |
986e2a7c |
1803 | tf->buffer.end.timestamp = ltt_time_add( |
1804 | ltt_time_from_uint64( |
1805 | ltt_get_uint64(LTT_GET_BO(tf), |
1806 | &header->end.timestamp) |
1807 | - tf->trace->start_monotonic), |
1808 | tf->trace->start_time); |
791dffa6 |
1809 | #endif //0 |
348c6ba8 |
1810 | //g_debug("block %u end : %lu.%lu", block_num, |
1811 | // tf->buffer.end.timestamp.tv_sec, tf->buffer.end.timestamp.tv_nsec); |
3aee1200 |
1812 | tf->buffer.end.cycle_count = ltt_get_uint64(LTT_GET_BO(tf), |
1813 | &header->end.cycle_count); |
986e2a7c |
1814 | tf->buffer.end.freq = ltt_get_uint64(LTT_GET_BO(tf), |
1815 | &header->end.freq); |
3aee1200 |
1816 | tf->buffer.lost_size = ltt_get_uint32(LTT_GET_BO(tf), |
986e2a7c |
1817 | &header->lost_size); |
791dffa6 |
1818 | tf->buffer.end.timestamp = ltt_time_add( |
1819 | ltt_time_from_uint64( |
88612d17 |
1820 | (double)(tf->buffer.end.cycle_count |
1821 | - tf->trace->start_tsc) * 1000000.0 |
791dffa6 |
1822 | / (double)tf->trace->start_freq), |
88612d17 |
1823 | tf->trace->start_time_from_tsc); |
791dffa6 |
1824 | |
3aee1200 |
1825 | tf->buffer.tsc = tf->buffer.begin.cycle_count; |
1826 | tf->event.tsc = tf->buffer.tsc; |
986e2a7c |
1827 | tf->buffer.freq = tf->buffer.begin.freq; |
3aee1200 |
1828 | |
1829 | /* FIXME |
1830 | * eventually support variable buffer size : will need a partial pre-read of |
1831 | * the headers to create an index when we open the trace... eventually. */ |
f628823c |
1832 | g_assert(tf->buf_size == ltt_get_uint32(LTT_GET_BO(tf), |
3aee1200 |
1833 | &header->buf_size)); |
507915ee |
1834 | |
3aee1200 |
1835 | /* Now that the buffer is mapped, calculate the time interpolation for the |
1836 | * block. */ |
1837 | |
791dffa6 |
1838 | // tf->buffer.nsecs_per_cycle = calc_nsecs_per_cycle(tf); |
1839 | //tf->buffer.cyc2ns_scale = calc_nsecs_per_cycle(tf); |
3aee1200 |
1840 | |
1841 | /* Make the current event point to the beginning of the buffer : |
1842 | * it means that the event read must get the first event. */ |
1843 | tf->event.tracefile = tf; |
1844 | tf->event.block = block_num; |
eed2ef37 |
1845 | tf->event.offset = 0; |
3aee1200 |
1846 | |
1847 | return 0; |
6cd62ccf |
1848 | |
3aee1200 |
1849 | map_error: |
1850 | return -errno; |
40331ba8 |
1851 | |
6cd62ccf |
1852 | } |
1853 | |
77175651 |
1854 | /* It will update the fields offsets too */ |
1855 | void ltt_update_event_size(LttTracefile *tf) |
6cd62ccf |
1856 | { |
2312de30 |
1857 | off_t size = 0; |
3aee1200 |
1858 | |
1859 | /* Specific handling of core events : necessary to read the facility control |
1860 | * tracefile. */ |
77175651 |
1861 | LttFacility *f = ltt_trace_get_facility_by_num(tf->trace, |
1862 | tf->event.facility_id); |
6cd62ccf |
1863 | |
3865ea09 |
1864 | if(likely(tf->event.facility_id == LTT_FACILITY_CORE)) { |
1865 | switch((enum ltt_core_events)tf->event.event_id) { |
1866 | case LTT_EVENT_FACILITY_LOAD: |
b77d1b57 |
1867 | size = strlen((char*)tf->event.data) + 1; |
348c6ba8 |
1868 | //g_debug("Update Event facility load of facility %s", (char*)tf->event.data); |
743e50fd |
1869 | size += ltt_align(size, sizeof(guint32), tf->has_alignment); |
c4afd5d8 |
1870 | size += sizeof(struct LttFacilityLoad); |
3865ea09 |
1871 | break; |
1872 | case LTT_EVENT_FACILITY_UNLOAD: |
348c6ba8 |
1873 | //g_debug("Update Event facility unload"); |
3865ea09 |
1874 | size = sizeof(struct LttFacilityUnload); |
1875 | break; |
1876 | case LTT_EVENT_STATE_DUMP_FACILITY_LOAD: |
b77d1b57 |
1877 | size = strlen((char*)tf->event.data) + 1; |
743e50fd |
1878 | size += ltt_align(size, sizeof(guint32), tf->has_alignment); |
348c6ba8 |
1879 | //g_debug("Update Event facility load state dump of facility %s", |
1880 | // (char*)tf->event.data); |
c4afd5d8 |
1881 | size += sizeof(struct LttStateDumpFacilityLoad); |
3865ea09 |
1882 | break; |
1883 | case LTT_EVENT_HEARTBEAT: |
348c6ba8 |
1884 | //g_debug("Update Event heartbeat"); |
3865ea09 |
1885 | size = sizeof(TimeHeartbeat); |
1886 | break; |
1887 | default: |
1888 | g_warning("Error in getting event size : tracefile %s, " |
1889 | "unknown event id %hhu in core facility.", |
1890 | g_quark_to_string(tf->name), |
1891 | tf->event.event_id); |
1892 | goto event_id_error; |
2dee981d |
1893 | |
77175651 |
1894 | } |
3aee1200 |
1895 | } else { |
c4afd5d8 |
1896 | if(!f->exists) { |
1897 | g_error("Unknown facility %hhu (0x%hhx) in tracefile %s", |
1898 | tf->event.facility_id, |
1899 | tf->event.facility_id, |
1900 | g_quark_to_string(tf->name)); |
1901 | goto facility_error; |
1902 | } |
1903 | |
3aee1200 |
1904 | LttEventType *event_type = |
1905 | ltt_facility_eventtype_get(f, tf->event.event_id); |
c4afd5d8 |
1906 | |
1907 | if(!event_type) { |
1908 | g_error("Unknown event id %hhu in facility %s in tracefile %s", |
1909 | tf->event.event_id, |
1910 | g_quark_to_string(f->name), |
1911 | g_quark_to_string(tf->name)); |
1912 | goto event_type_error; |
1913 | } |
f104d082 |
1914 | |
1915 | /* Compute the dynamic offsets */ |
743e50fd |
1916 | compute_offsets(tf, f, event_type, &size, tf->event.data); |
c4afd5d8 |
1917 | |
348c6ba8 |
1918 | //g_debug("Event root field : f.e %hhu.%hhu size %zd", |
1919 | // tf->event.facility_id, |
1920 | // tf->event.event_id, size); |
3aee1200 |
1921 | } |
3aee1200 |
1922 | |
77175651 |
1923 | tf->event.data_size = size; |
eed2ef37 |
1924 | |
b77d1b57 |
1925 | /* Check consistency between kernel and LTTV structure sizes */ |
1926 | g_assert(tf->event.data_size == tf->event.event_size); |
9eb6aa7a |
1927 | |
eed2ef37 |
1928 | return; |
1929 | |
c4afd5d8 |
1930 | facility_error: |
1931 | event_type_error: |
3aee1200 |
1932 | event_id_error: |
eed2ef37 |
1933 | tf->event.data_size = 0; |
6cd62ccf |
1934 | } |
1935 | |
6cd62ccf |
1936 | |
3aee1200 |
1937 | /* Take the tf current event offset and use the event facility id and event id |
1938 | * to figure out where is the next event offset. |
1939 | * |
1940 | * This is an internal function not aiming at being used elsewhere : it will |
1941 | * not jump over the current block limits. Please consider using |
1942 | * ltt_tracefile_read to do this. |
1943 | * |
1944 | * Returns 0 on success |
1945 | * ERANGE if we are at the end of the buffer. |
1946 | * ENOPROTOOPT if an error occured when getting the current event size. |
1947 | */ |
1948 | static int ltt_seek_next_event(LttTracefile *tf) |
6cd62ccf |
1949 | { |
3aee1200 |
1950 | int ret = 0; |
1951 | void *pos; |
3aee1200 |
1952 | |
1953 | /* seek over the buffer header if we are at the buffer start */ |
eed2ef37 |
1954 | if(tf->event.offset == 0) { |
51551c6f |
1955 | tf->event.offset += tf->buffer_header_size; |
b77d1b57 |
1956 | |
f628823c |
1957 | if(tf->event.offset == tf->buf_size - tf->buffer.lost_size) { |
b77d1b57 |
1958 | ret = ERANGE; |
1959 | } |
3aee1200 |
1960 | goto found; |
1961 | } |
6cd62ccf |
1962 | |
6cd62ccf |
1963 | |
3aee1200 |
1964 | pos = tf->event.data; |
1965 | |
77175651 |
1966 | if(tf->event.data_size < 0) goto error; |
3aee1200 |
1967 | |
77175651 |
1968 | pos += (size_t)tf->event.data_size; |
3aee1200 |
1969 | |
eed2ef37 |
1970 | tf->event.offset = pos - tf->buffer.head; |
cb03932a |
1971 | |
f628823c |
1972 | if(tf->event.offset == tf->buf_size - tf->buffer.lost_size) { |
cb03932a |
1973 | ret = ERANGE; |
1974 | goto found; |
1975 | } |
36d36c9f |
1976 | g_assert(tf->event.offset < tf->buf_size - tf->buffer.lost_size); |
3aee1200 |
1977 | |
1978 | found: |
1979 | return ret; |
1980 | |
1981 | error: |
1982 | g_error("Error in ltt_seek_next_event for tracefile %s", |
1983 | g_quark_to_string(tf->name)); |
1984 | return ENOPROTOOPT; |
6cd62ccf |
1985 | } |
1986 | |
791dffa6 |
1987 | #if 0 |
6cd62ccf |
1988 | /***************************************************************************** |
1989 | *Function name |
3aee1200 |
1990 | * calc_nsecs_per_cycle : calculate nsecs per cycle for current block |
986e2a7c |
1991 | * |
1992 | * 1.0 / (freq(khz) *1000) * 1000000000 |
6cd62ccf |
1993 | *Input Params |
1994 | * t : tracefile |
1995 | ****************************************************************************/ |
986e2a7c |
1996 | /* from timer_tsc.c */ |
1997 | #define CYC2NS_SCALE_FACTOR 10 |
791dffa6 |
1998 | static guint32 calc_nsecs_per_cycle(LttTracefile * tf) |
6cd62ccf |
1999 | { |
986e2a7c |
2000 | //return 1e6 / (double)tf->buffer.freq; |
791dffa6 |
2001 | guint32 cpu_mhz = tf->buffer.freq / 1000; |
2002 | guint32 cyc2ns_scale = (1000 << CYC2NS_SCALE_FACTOR)/cpu_mhz; |
6cd62ccf |
2003 | |
791dffa6 |
2004 | return cyc2ns_scale; |
986e2a7c |
2005 | // return 1e6 / (double)tf->buffer.freq; |
3aee1200 |
2006 | } |
791dffa6 |
2007 | |
2008 | static guint64 cycles_2_ns(LttTracefile *tf, guint64 cycles) |
2009 | { |
2010 | return (cycles * tf->buffer.cyc2ns_scale) >> CYC2NS_SCALE_FACTOR; |
2011 | } |
2012 | #endif //0 |
2013 | |
3aee1200 |
2014 | #if 0 |
2015 | void setFieldsOffset(LttTracefile *tf, LttEventType *evT,void *evD) |
2016 | { |
2017 | LttField * rootFld = evT->root_field; |
2018 | // rootFld->base_address = evD; |
2dee981d |
2019 | |
3aee1200 |
2020 | if(likely(rootFld)) |
2021 | rootFld->field_size = getFieldtypeSize(tf, evT->facility, |
2022 | evT, 0,0,rootFld, evD); |
6cd62ccf |
2023 | } |
3aee1200 |
2024 | #endif //0 |
f104d082 |
2025 | #if 0 |
3aee1200 |
2026 | /***************************************************************************** |
6cd62ccf |
2027 | *Function name |
3aee1200 |
2028 | * set_fields_offsets : set the precomputable offset of the fields |
6cd62ccf |
2029 | *Input params |
3aee1200 |
2030 | * tracefile : opened trace file |
2031 | * event_type : the event type |
6cd62ccf |
2032 | ****************************************************************************/ |
2033 | |
3aee1200 |
2034 | void set_fields_offsets(LttTracefile *tf, LttEventType *event_type) |
6cd62ccf |
2035 | { |
3aee1200 |
2036 | LttField *field = event_type->root_field; |
2037 | enum field_status fixed_root = FIELD_FIXED, fixed_parent = FIELD_FIXED; |
2038 | |
2039 | if(likely(field)) |
2040 | preset_field_type_size(tf, event_type, 0, 0, |
2041 | &fixed_root, &fixed_parent, |
2042 | field); |
2043 | |
2044 | } |
f104d082 |
2045 | #endif //0 |
2046 | |
2047 | |
2048 | /***************************************************************************** |
2049 | *Function name |
2050 | * get_alignment : Get the alignment needed for a field. |
2051 | *Input params |
f104d082 |
2052 | * field : field |
2053 | * |
2054 | * returns : The size on which it must be aligned. |
2055 | * |
2056 | ****************************************************************************/ |
743e50fd |
2057 | off_t get_alignment(LttField *field) |
f104d082 |
2058 | { |
2312de30 |
2059 | LttType *type = &field->field_type; |
f104d082 |
2060 | |
2061 | switch(type->type_class) { |
2062 | case LTT_INT_FIXED: |
2063 | case LTT_UINT_FIXED: |
2064 | case LTT_POINTER: |
2065 | case LTT_CHAR: |
2066 | case LTT_UCHAR: |
2067 | case LTT_SHORT: |
2068 | case LTT_USHORT: |
2069 | case LTT_INT: |
2070 | case LTT_UINT: |
2071 | case LTT_LONG: |
2072 | case LTT_ULONG: |
2073 | case LTT_SIZE_T: |
2074 | case LTT_SSIZE_T: |
2075 | case LTT_OFF_T: |
2076 | case LTT_FLOAT: |
2077 | case LTT_ENUM: |
2078 | /* Align offset on type size */ |
2079 | return field->field_size; |
2080 | break; |
2081 | case LTT_STRING: |
2082 | return 0; |
2083 | break; |
2084 | case LTT_ARRAY: |
2085 | g_assert(type->fields->len == 1); |
2086 | { |
2087 | LttField *child = &g_array_index(type->fields, LttField, 0); |
743e50fd |
2088 | return get_alignment(child); |
f104d082 |
2089 | } |
2090 | break; |
2091 | case LTT_SEQUENCE: |
2092 | g_assert(type->fields->len == 2); |
2093 | { |
2094 | off_t localign = 0; |
2095 | LttField *child = &g_array_index(type->fields, LttField, 0); |
2096 | |
743e50fd |
2097 | localign = max(localign, get_alignment(child)); |
f104d082 |
2098 | |
2099 | child = &g_array_index(type->fields, LttField, 1); |
743e50fd |
2100 | localign = max(localign, get_alignment(child)); |
f104d082 |
2101 | |
2102 | return localign; |
2103 | } |
2104 | break; |
2105 | case LTT_STRUCT: |
2106 | case LTT_UNION: |
2107 | { |
2108 | guint i; |
2109 | off_t localign = 0; |
2110 | |
2111 | for(i=0; i<type->fields->len; i++) { |
2112 | LttField *child = &g_array_index(type->fields, LttField, i); |
743e50fd |
2113 | localign = max(localign, get_alignment(child)); |
f104d082 |
2114 | } |
2115 | return localign; |
2116 | } |
2117 | break; |
2118 | case LTT_NONE: |
2119 | default: |
2120 | g_error("get_alignment : unknown type"); |
2121 | } |
2122 | |
2123 | } |
2124 | |
2125 | /***************************************************************************** |
2126 | *Function name |
2127 | * field_compute_static_size : Determine the size of fields known by their |
2128 | * sole definition. Unions, arrays and struct sizes might be known, but |
2129 | * the parser does not give that information. |
2130 | *Input params |
2131 | * tf : tracefile |
2132 | * field : field |
2133 | * |
2134 | ****************************************************************************/ |
2135 | |
743e50fd |
2136 | void field_compute_static_size(LttFacility *fac, LttField *field) |
f104d082 |
2137 | { |
2312de30 |
2138 | LttType *type = &field->field_type; |
f104d082 |
2139 | |
2140 | switch(type->type_class) { |
2141 | case LTT_INT_FIXED: |
2142 | case LTT_UINT_FIXED: |
2143 | case LTT_POINTER: |
2144 | case LTT_CHAR: |
2145 | case LTT_UCHAR: |
2146 | case LTT_SHORT: |
2147 | case LTT_USHORT: |
2148 | case LTT_INT: |
2149 | case LTT_UINT: |
2150 | case LTT_LONG: |
2151 | case LTT_ULONG: |
2152 | case LTT_SIZE_T: |
2153 | case LTT_SSIZE_T: |
2154 | case LTT_OFF_T: |
2155 | case LTT_FLOAT: |
2156 | case LTT_ENUM: |
2157 | case LTT_STRING: |
2158 | /* nothing to do */ |
2159 | break; |
2160 | case LTT_ARRAY: |
2161 | /* note this : array type size is the number of elements in the array, |
2162 | * while array field size of the length of the array in bytes */ |
2163 | g_assert(type->fields->len == 1); |
2164 | { |
2165 | LttField *child = &g_array_index(type->fields, LttField, 0); |
743e50fd |
2166 | field_compute_static_size(fac, child); |
f104d082 |
2167 | |
2168 | if(child->field_size != 0) { |
2169 | field->field_size = type->size * child->field_size; |
2170 | field->dynamic_offsets = g_array_sized_new(FALSE, TRUE, |
2171 | sizeof(off_t), type->size); |
2172 | } else { |
2173 | field->field_size = 0; |
2174 | } |
2175 | } |
2176 | break; |
2177 | case LTT_SEQUENCE: |
2178 | g_assert(type->fields->len == 2); |
2179 | { |
2312de30 |
2180 | off_t local_offset = 0; |
f104d082 |
2181 | LttField *child = &g_array_index(type->fields, LttField, 1); |
743e50fd |
2182 | field_compute_static_size(fac, child); |
f104d082 |
2183 | field->field_size = 0; |
2184 | type->size = 0; |
2185 | if(child->field_size != 0) { |
2186 | field->dynamic_offsets = g_array_sized_new(FALSE, TRUE, |
2187 | sizeof(off_t), SEQUENCE_AVG_ELEMENTS); |
2188 | } |
2189 | } |
2190 | break; |
2191 | case LTT_STRUCT: |
2192 | case LTT_UNION: |
2193 | { |
2194 | guint i; |
2195 | for(i=0;i<type->fields->len;i++) { |
2196 | LttField *child = &g_array_index(type->fields, LttField, i); |
743e50fd |
2197 | field_compute_static_size(fac, child); |
f104d082 |
2198 | if(child->field_size != 0) { |
743e50fd |
2199 | type->size += ltt_align(type->size, get_alignment(child), |
2200 | fac->alignment); |
f104d082 |
2201 | type->size += child->field_size; |
2202 | } else { |
2203 | /* As soon as we find a child with variable size, we have |
2204 | * a variable size */ |
2205 | type->size = 0; |
2206 | break; |
2207 | } |
2208 | } |
2209 | field->field_size = type->size; |
2210 | } |
2211 | break; |
2212 | default: |
2213 | g_error("field_static_size : unknown type"); |
2312de30 |
2214 | } |
f104d082 |
2215 | |
2216 | } |
2217 | |
2218 | |
2219 | |
2220 | /***************************************************************************** |
2221 | *Function name |
2222 | * precompute_fields_offsets : set the precomputable offset of the fields |
2223 | *Input params |
743e50fd |
2224 | * fac : facility |
f104d082 |
2225 | * field : the field |
2226 | * offset : pointer to the current offset, must be incremented |
2227 | * |
2228 | * return : 1 : found a variable length field, stop the processing. |
2229 | * 0 otherwise. |
2230 | ****************************************************************************/ |
2231 | |
2232 | |
743e50fd |
2233 | gint precompute_fields_offsets(LttFacility *fac, LttField *field, off_t *offset) |
f104d082 |
2234 | { |
2312de30 |
2235 | LttType *type = &field->field_type; |
f104d082 |
2236 | |
2237 | switch(type->type_class) { |
2238 | case LTT_INT_FIXED: |
2239 | case LTT_UINT_FIXED: |
2240 | case LTT_POINTER: |
2241 | case LTT_CHAR: |
2242 | case LTT_UCHAR: |
2243 | case LTT_SHORT: |
2244 | case LTT_USHORT: |
2245 | case LTT_INT: |
2246 | case LTT_UINT: |
2247 | case LTT_LONG: |
2248 | case LTT_ULONG: |
2249 | case LTT_SIZE_T: |
2250 | case LTT_SSIZE_T: |
2251 | case LTT_OFF_T: |
2252 | case LTT_FLOAT: |
2253 | case LTT_ENUM: |
743e50fd |
2254 | g_assert(field->field_size != 0); |
f104d082 |
2255 | /* Align offset on type size */ |
743e50fd |
2256 | *offset += ltt_align(*offset, get_alignment(field), |
2257 | fac->alignment); |
f104d082 |
2258 | /* remember offset */ |
2259 | field->offset_root = *offset; |
2260 | field->fixed_root = FIELD_FIXED; |
2261 | /* Increment offset */ |
2262 | *offset += field->field_size; |
2263 | return 0; |
2264 | break; |
2265 | case LTT_STRING: |
2266 | field->offset_root = *offset; |
2267 | field->fixed_root = FIELD_FIXED; |
2268 | return 1; |
2269 | break; |
2270 | case LTT_ARRAY: |
2271 | g_assert(type->fields->len == 1); |
2272 | { |
2273 | LttField *child = &g_array_index(type->fields, LttField, 0); |
2274 | |
743e50fd |
2275 | *offset += ltt_align(*offset, get_alignment(field), |
2276 | fac->alignment); |
f104d082 |
2277 | |
2278 | /* remember offset */ |
2279 | field->offset_root = *offset; |
2280 | field->array_offset = *offset; |
2281 | field->fixed_root = FIELD_FIXED; |
2282 | |
2283 | /* Let the child be variable */ |
2284 | //precompute_fields_offsets(tf, child, offset); |
2285 | |
2286 | if(field->field_size != 0) { |
2287 | /* Increment offset */ |
2288 | /* field_size is the array size in bytes */ |
2289 | *offset += field->field_size; |
2290 | return 0; |
2291 | } else { |
2292 | return 1; |
2293 | } |
2294 | } |
2295 | break; |
2296 | case LTT_SEQUENCE: |
2297 | g_assert(type->fields->len == 2); |
2298 | { |
2299 | LttField *child; |
2300 | guint ret; |
2301 | |
743e50fd |
2302 | *offset += ltt_align(*offset, get_alignment(field), |
2303 | fac->alignment); |
f104d082 |
2304 | |
2305 | /* remember offset */ |
2306 | field->offset_root = *offset; |
2307 | field->fixed_root = FIELD_FIXED; |
2308 | |
2309 | child = &g_array_index(type->fields, LttField, 0); |
743e50fd |
2310 | ret = precompute_fields_offsets(fac, child, offset); |
f104d082 |
2311 | g_assert(ret == 0); /* Seq len cannot have variable len */ |
2312 | |
2313 | child = &g_array_index(type->fields, LttField, 1); |
743e50fd |
2314 | *offset += ltt_align(*offset, get_alignment(child), |
2315 | fac->alignment); |
f104d082 |
2316 | field->array_offset = *offset; |
743e50fd |
2317 | /* Let the child be variable. */ |
2318 | //ret = precompute_fields_offsets(fac, child, offset); |
f104d082 |
2319 | |
2320 | /* Cannot precompute fields offsets of sequence members, and has |
2321 | * variable length. */ |
2322 | return 1; |
2323 | } |
2324 | break; |
2325 | case LTT_STRUCT: |
2326 | { |
2327 | LttField *child; |
2328 | guint i; |
2329 | gint ret=0; |
2330 | |
743e50fd |
2331 | *offset += ltt_align(*offset, get_alignment(field), |
2332 | fac->alignment); |
f104d082 |
2333 | /* remember offset */ |
2334 | field->offset_root = *offset; |
2335 | field->fixed_root = FIELD_FIXED; |
2336 | |
2337 | for(i=0; i< type->fields->len; i++) { |
2338 | child = &g_array_index(type->fields, LttField, i); |
743e50fd |
2339 | ret = precompute_fields_offsets(fac, child, offset); |
f104d082 |
2340 | |
2341 | if(ret) break; |
2342 | } |
2343 | return ret; |
2344 | } |
2345 | break; |
2346 | case LTT_UNION: |
2347 | { |
2348 | LttField *child; |
2349 | guint i; |
2350 | gint ret=0; |
2351 | |
743e50fd |
2352 | *offset += ltt_align(*offset, get_alignment(field), |
2353 | fac->alignment); |
f104d082 |
2354 | /* remember offset */ |
2355 | field->offset_root = *offset; |
2356 | field->fixed_root = FIELD_FIXED; |
2357 | |
2358 | for(i=0; i< type->fields->len; i++) { |
2359 | *offset = field->offset_root; |
2360 | child = &g_array_index(type->fields, LttField, i); |
743e50fd |
2361 | ret = precompute_fields_offsets(fac, child, offset); |
f104d082 |
2362 | |
2363 | if(ret) break; |
2364 | } |
2365 | *offset = field->offset_root + field->field_size; |
2366 | return ret; |
2367 | } |
2368 | |
2369 | break; |
2370 | case LTT_NONE: |
2371 | default: |
2372 | g_error("precompute_fields_offsets : unknown type"); |
2373 | return 1; |
2374 | } |
2375 | |
2376 | } |
2377 | |
2378 | |
2379 | /***************************************************************************** |
2380 | *Function name |
2381 | * precompute_offsets : set the precomputable offset of an event type |
2382 | *Input params |
2383 | * tf : tracefile |
2384 | * event : event type |
2385 | * |
2386 | ****************************************************************************/ |
743e50fd |
2387 | void precompute_offsets(LttFacility *fac, LttEventType *event) |
f104d082 |
2388 | { |
2389 | guint i; |
2390 | off_t offset = 0; |
2391 | gint ret; |
2392 | |
2393 | /* First, compute the size of fixed size fields. Will determine size for |
2394 | * arrays, struct and unions, which is not done by the parser */ |
2395 | for(i=0; i<event->fields->len; i++) { |
2396 | LttField *field = &g_array_index(event->fields, LttField, i); |
743e50fd |
2397 | field_compute_static_size(fac, field); |
f104d082 |
2398 | } |
2399 | |
2400 | /* Precompute all known offsets */ |
2401 | for(i=0; i<event->fields->len; i++) { |
2402 | LttField *field = &g_array_index(event->fields, LttField, i); |
743e50fd |
2403 | ret = precompute_fields_offsets(fac, field, &offset); |
f104d082 |
2404 | if(ret) break; |
2405 | } |
2406 | } |
2407 | |
2408 | |
e4eced0f |
2409 | |
bbf28e50 |
2410 | |
3aee1200 |
2411 | /***************************************************************************** |
2412 | *Function name |
2413 | * preset_field_type_size : set the fixed sizes of the field type |
2414 | *Input params |
2415 | * tf : tracefile |
2416 | * event_type : event type |
2417 | * offset_root : offset from the root |
2418 | * offset_parent : offset from the parent |
2419 | * fixed_root : Do we know a fixed offset to the root ? |
2420 | * fixed_parent : Do we know a fixed offset to the parent ? |
2421 | * field : field |
2422 | ****************************************************************************/ |
f104d082 |
2423 | |
2424 | |
2425 | |
2426 | // preset the fixed size offsets. Calculate them just like genevent-new : an |
2427 | // increment of a *to value that represents the offset from the start of the |
2428 | // event data. |
2429 | // The preset information is : offsets up to (and including) the first element |
2430 | // of variable size. All subsequent fields must be flagged "VARIABLE OFFSET". |
2431 | #if 0 |
3aee1200 |
2432 | void preset_field_type_size(LttTracefile *tf, LttEventType *event_type, |
2433 | off_t offset_root, off_t offset_parent, |
2434 | enum field_status *fixed_root, enum field_status *fixed_parent, |
2435 | LttField *field) |
2436 | { |
2437 | enum field_status local_fixed_root, local_fixed_parent; |
2438 | guint i; |
2439 | LttType *type; |
dfb73233 |
2440 | |
3aee1200 |
2441 | g_assert(field->fixed_root == FIELD_UNKNOWN); |
2442 | g_assert(field->fixed_parent == FIELD_UNKNOWN); |
2443 | g_assert(field->fixed_size == FIELD_UNKNOWN); |
dfb73233 |
2444 | |
3aee1200 |
2445 | type = field->field_type; |
2446 | |
2447 | field->fixed_root = *fixed_root; |
2448 | if(field->fixed_root == FIELD_FIXED) |
2449 | field->offset_root = offset_root; |
2450 | else |
2451 | field->offset_root = 0; |
2452 | |
2453 | field->fixed_parent = *fixed_parent; |
2454 | if(field->fixed_parent == FIELD_FIXED) |
2455 | field->offset_parent = offset_parent; |
2456 | else |
2457 | field->offset_parent = 0; |
2458 | |
2459 | size_t current_root_offset; |
2460 | size_t current_offset; |
2461 | enum field_status current_child_status, final_child_status; |
2462 | size_t max_size; |
2463 | |
2464 | switch(type->type_class) { |
2465 | case LTT_INT: |
2466 | case LTT_UINT: |
2467 | case LTT_FLOAT: |
2468 | case LTT_ENUM: |
2469 | field->field_size = ltt_type_size(tf->trace, type); |
2470 | field->fixed_size = FIELD_FIXED; |
2471 | break; |
2472 | case LTT_POINTER: |
2473 | field->field_size = (off_t)event_type->facility->pointer_size; |
2474 | field->fixed_size = FIELD_FIXED; |
2475 | break; |
2476 | case LTT_LONG: |
2477 | case LTT_ULONG: |
cb03932a |
2478 | field->field_size = (off_t)event_type->facility->long_size; |
3aee1200 |
2479 | field->fixed_size = FIELD_FIXED; |
2480 | break; |
2481 | case LTT_SIZE_T: |
2482 | case LTT_SSIZE_T: |
2483 | case LTT_OFF_T: |
2484 | field->field_size = (off_t)event_type->facility->size_t_size; |
2485 | field->fixed_size = FIELD_FIXED; |
2486 | break; |
2487 | case LTT_SEQUENCE: |
2488 | local_fixed_root = FIELD_VARIABLE; |
2489 | local_fixed_parent = FIELD_VARIABLE; |
2490 | preset_field_type_size(tf, event_type, |
2491 | 0, 0, |
2492 | &local_fixed_root, &local_fixed_parent, |
2493 | field->child[0]); |
2494 | field->fixed_size = FIELD_VARIABLE; |
2495 | field->field_size = 0; |
27304273 |
2496 | *fixed_root = FIELD_VARIABLE; |
2497 | *fixed_parent = FIELD_VARIABLE; |
3aee1200 |
2498 | break; |
2499 | case LTT_STRING: |
2500 | field->fixed_size = FIELD_VARIABLE; |
2501 | field->field_size = 0; |
27304273 |
2502 | *fixed_root = FIELD_VARIABLE; |
2503 | *fixed_parent = FIELD_VARIABLE; |
3aee1200 |
2504 | break; |
2505 | case LTT_ARRAY: |
2506 | local_fixed_root = FIELD_VARIABLE; |
2507 | local_fixed_parent = FIELD_VARIABLE; |
2508 | preset_field_type_size(tf, event_type, |
2509 | 0, 0, |
2510 | &local_fixed_root, &local_fixed_parent, |
2511 | field->child[0]); |
2512 | field->fixed_size = field->child[0]->fixed_size; |
27304273 |
2513 | if(field->fixed_size == FIELD_FIXED) { |
3aee1200 |
2514 | field->field_size = type->element_number * field->child[0]->field_size; |
27304273 |
2515 | } else { |
3aee1200 |
2516 | field->field_size = 0; |
27304273 |
2517 | *fixed_root = FIELD_VARIABLE; |
2518 | *fixed_parent = FIELD_VARIABLE; |
2519 | } |
3aee1200 |
2520 | break; |
2521 | case LTT_STRUCT: |
2522 | current_root_offset = field->offset_root; |
2523 | current_offset = 0; |
2524 | current_child_status = FIELD_FIXED; |
2525 | for(i=0;i<type->element_number;i++) { |
2526 | preset_field_type_size(tf, event_type, |
2527 | current_root_offset, current_offset, |
2528 | fixed_root, ¤t_child_status, |
2529 | field->child[i]); |
2530 | if(current_child_status == FIELD_FIXED) { |
2531 | current_root_offset += field->child[i]->field_size; |
2532 | current_offset += field->child[i]->field_size; |
2533 | } else { |
2534 | current_root_offset = 0; |
2535 | current_offset = 0; |
2536 | } |
2537 | } |
2538 | if(current_child_status != FIELD_FIXED) { |
2539 | *fixed_parent = current_child_status; |
2540 | field->field_size = 0; |
2541 | field->fixed_size = current_child_status; |
2542 | } else { |
2543 | field->field_size = current_offset; |
2544 | field->fixed_size = FIELD_FIXED; |
2545 | } |
2546 | break; |
2547 | case LTT_UNION: |
2548 | current_root_offset = field->offset_root; |
2549 | current_offset = 0; |
2550 | max_size = 0; |
2551 | final_child_status = FIELD_FIXED; |
2552 | for(i=0;i<type->element_number;i++) { |
2553 | enum field_status current_root_child_status = FIELD_FIXED; |
2554 | enum field_status current_child_status = FIELD_FIXED; |
2555 | preset_field_type_size(tf, event_type, |
2556 | current_root_offset, current_offset, |
2557 | ¤t_root_child_status, ¤t_child_status, |
2558 | field->child[i]); |
2559 | if(current_child_status != FIELD_FIXED) |
2560 | final_child_status = current_child_status; |
2561 | else |
2562 | max_size = max(max_size, field->child[i]->field_size); |
2563 | } |
2564 | if(final_child_status != FIELD_FIXED) { |
e2542235 |
2565 | g_error("LTTV does not support variable size fields in unions."); |
2566 | /* This will stop the application. */ |
3aee1200 |
2567 | *fixed_root = final_child_status; |
2568 | *fixed_parent = final_child_status; |
2569 | field->field_size = 0; |
2570 | field->fixed_size = current_child_status; |
2571 | } else { |
2572 | field->field_size = max_size; |
2573 | field->fixed_size = FIELD_FIXED; |
2574 | } |
2575 | break; |
dfb73233 |
2576 | } |
2577 | |
6cd62ccf |
2578 | } |
f104d082 |
2579 | #endif //0 |
3aee1200 |
2580 | |
77175651 |
2581 | /***************************************************************************** |
2582 | *Function name |
2583 | * check_fields_compatibility : Check for compatibility between two fields : |
2584 | * do they use the same inner structure ? |
2585 | *Input params |
2586 | * event_type1 : event type |
2587 | * event_type2 : event type |
2588 | * field1 : field |
2589 | * field2 : field |
2590 | *Returns : 0 if identical |
2591 | * 1 if not. |
2592 | ****************************************************************************/ |
f104d082 |
2593 | // this function checks for equality of field types. Therefore, it does not use |
2594 | // per se offsets. For instance, an aligned version of a structure is |
2595 | // compatible with an unaligned version of the same structure. |
2596 | gint check_fields_compatibility(LttEventType *event_type1, |
2597 | LttEventType *event_type2, |
2598 | LttField *field1, LttField *field2) |
2599 | { |
2600 | guint different = 0; |
2312de30 |
2601 | LttType *type1; |
2602 | LttType *type2; |
f104d082 |
2603 | |
2604 | if(field1 == NULL) { |
2605 | if(field2 == NULL) goto end; |
2606 | else { |
2607 | different = 1; |
2608 | goto end; |
2609 | } |
2610 | } else if(field2 == NULL) { |
2611 | different = 1; |
2612 | goto end; |
2613 | } |
2614 | |
2312de30 |
2615 | type1 = &field1->field_type; |
2616 | type2 = &field2->field_type; |
f104d082 |
2617 | |
2618 | if(type1->type_class != type2->type_class) { |
2619 | different = 1; |
2620 | goto end; |
2621 | } |
f104d082 |
2622 | |
2623 | switch(type1->type_class) { |
2624 | case LTT_INT_FIXED: |
2625 | case LTT_UINT_FIXED: |
2626 | case LTT_POINTER: |
2627 | case LTT_CHAR: |
2628 | case LTT_UCHAR: |
2629 | case LTT_SHORT: |
2630 | case LTT_USHORT: |
2631 | case LTT_INT: |
2632 | case LTT_UINT: |
2633 | case LTT_LONG: |
2634 | case LTT_ULONG: |
2635 | case LTT_SIZE_T: |
2636 | case LTT_SSIZE_T: |
2637 | case LTT_OFF_T: |
2638 | case LTT_FLOAT: |
2639 | case LTT_ENUM: |
2640 | if(field1->field_size != field2->field_size) |
2641 | different = 1; |
2642 | break; |
2643 | case LTT_STRING: |
2644 | break; |
2645 | case LTT_ARRAY: |
2646 | { |
2647 | LttField *child1 = &g_array_index(type1->fields, LttField, 0); |
2648 | LttField *child2 = &g_array_index(type2->fields, LttField, 0); |
2649 | |
2650 | if(type1->size != type2->size) |
2651 | different = 1; |
2652 | if(check_fields_compatibility(event_type1, event_type2, child1, child2)) |
2653 | different = 1; |
2654 | } |
2655 | break; |
2656 | case LTT_SEQUENCE: |
2657 | { |
2658 | LttField *child1 = &g_array_index(type1->fields, LttField, 1); |
2659 | LttField *child2 = &g_array_index(type2->fields, LttField, 1); |
2660 | |
2661 | if(check_fields_compatibility(event_type1, event_type2, child1, child2)) |
2662 | different = 1; |
2663 | } |
2664 | break; |
2665 | case LTT_STRUCT: |
2666 | case LTT_UNION: |
2667 | { |
2668 | LttField *child; |
2669 | guint i; |
2670 | |
2671 | if(type1->fields->len != type2->fields->len) { |
2672 | different = 1; |
2673 | goto end; |
2674 | } |
2675 | |
2676 | for(i=0; i< type1->fields->len; i++) { |
2312de30 |
2677 | LttField *child1; |
2678 | LttField *child2; |
f104d082 |
2679 | child1 = &g_array_index(type1->fields, LttField, i); |
2680 | child2 = &g_array_index(type2->fields, LttField, i); |
2681 | different = check_fields_compatibility(event_type1, |
2682 | event_type2, child1, child2); |
2683 | |
2684 | if(different) break; |
2685 | } |
2686 | } |
2687 | break; |
2688 | case LTT_NONE: |
2689 | default: |
2690 | g_error("precompute_fields_offsets : unknown type"); |
2691 | } |
2692 | |
2693 | end: |
2694 | return different; |
2695 | } |
2696 | |
2697 | |
2698 | #if 0 |
77175651 |
2699 | gint check_fields_compatibility(LttEventType *event_type1, |
2700 | LttEventType *event_type2, |
2701 | LttField *field1, LttField *field2) |
2702 | { |
2703 | guint different = 0; |
77175651 |
2704 | guint i; |
2705 | LttType *type1; |
2706 | LttType *type2; |
2707 | |
2708 | if(field1 == NULL) { |
2709 | if(field2 == NULL) goto end; |
2710 | else { |
2711 | different = 1; |
2712 | goto end; |
2713 | } |
2714 | } else if(field2 == NULL) { |
2715 | different = 1; |
2716 | goto end; |
2717 | } |
2718 | |
2719 | g_assert(field1->fixed_root != FIELD_UNKNOWN); |
2720 | g_assert(field2->fixed_root != FIELD_UNKNOWN); |
2721 | g_assert(field1->fixed_parent != FIELD_UNKNOWN); |
2722 | g_assert(field2->fixed_parent != FIELD_UNKNOWN); |
2723 | g_assert(field1->fixed_size != FIELD_UNKNOWN); |
2724 | g_assert(field2->fixed_size != FIELD_UNKNOWN); |
2725 | |
2726 | type1 = field1->field_type; |
2727 | type2 = field2->field_type; |
2728 | |
77175651 |
2729 | if(type1->type_class != type2->type_class) { |
2730 | different = 1; |
2731 | goto end; |
2732 | } |
2733 | if(type1->element_name != type2->element_name) { |
2734 | different = 1; |
2735 | goto end; |
2736 | } |
2737 | |
2738 | switch(type1->type_class) { |
2739 | case LTT_INT: |
2740 | case LTT_UINT: |
2741 | case LTT_FLOAT: |
2742 | case LTT_POINTER: |
2743 | case LTT_LONG: |
2744 | case LTT_ULONG: |
2745 | case LTT_SIZE_T: |
2746 | case LTT_SSIZE_T: |
2747 | case LTT_OFF_T: |
2748 | if(field1->field_size != field2->field_size) { |
2749 | different = 1; |
2750 | goto end; |
2751 | } |
2752 | break; |
2753 | case LTT_ENUM: |
2754 | if(type1->element_number != type2->element_number) { |
2755 | different = 1; |
2756 | goto end; |
2757 | } |
2758 | for(i=0;i<type1->element_number;i++) { |
2759 | if(type1->enum_strings[i] != type2->enum_strings[i]) { |
2760 | different = 1; |
2761 | goto end; |
2762 | } |
2763 | } |
2764 | break; |
2765 | case LTT_SEQUENCE: |
2766 | /* Two elements : size and child */ |
2767 | g_assert(type1->element_number != type2->element_number); |
2768 | for(i=0;i<type1->element_number;i++) { |
2769 | if(check_fields_compatibility(event_type1, event_type2, |
2770 | field1->child[0], field2->child[0])) { |
2771 | different = 1; |
2772 | goto end; |
2773 | } |
2774 | } |
2775 | break; |
2776 | case LTT_STRING: |
2777 | break; |
2778 | case LTT_ARRAY: |
2779 | if(field1->field_size != field2->field_size) { |
2780 | different = 1; |
2781 | goto end; |
2782 | } |
2783 | /* Two elements : size and child */ |
2784 | g_assert(type1->element_number != type2->element_number); |
2785 | for(i=0;i<type1->element_number;i++) { |
2786 | if(check_fields_compatibility(event_type1, event_type2, |
2787 | field1->child[0], field2->child[0])) { |
2788 | different = 1; |
2789 | goto end; |
2790 | } |
2791 | } |
2792 | break; |
2793 | case LTT_STRUCT: |
2794 | case LTT_UNION: |
2795 | if(type1->element_number != type2->element_number) { |
2796 | different = 1; |
2797 | break; |
2798 | } |
2799 | for(i=0;i<type1->element_number;i++) { |
2800 | if(check_fields_compatibility(event_type1, event_type2, |
2801 | field1->child[0], field2->child[0])) { |
2802 | different = 1; |
2803 | goto end; |
2804 | } |
2805 | } |
2806 | break; |
2807 | } |
2808 | end: |
2809 | return different; |
2810 | } |
3aee1200 |
2811 | #endif //0 |
6cd62ccf |
2812 | |
f104d082 |
2813 | |
6cd62ccf |
2814 | /***************************************************************************** |
2815 | *Function name |
eed2ef37 |
2816 | * ltt_get_int : get an integer number |
6cd62ccf |
2817 | *Input params |
3aee1200 |
2818 | * reverse_byte_order: must we reverse the byte order ? |
6cd62ccf |
2819 | * size : the size of the integer |
3aee1200 |
2820 | * ptr : the data pointer |
6cd62ccf |
2821 | *Return value |
cf74a6f1 |
2822 | * gint64 : a 64 bits integer |
6cd62ccf |
2823 | ****************************************************************************/ |
2824 | |
eed2ef37 |
2825 | gint64 ltt_get_int(gboolean reverse_byte_order, gint size, void *data) |
6cd62ccf |
2826 | { |
3aee1200 |
2827 | gint64 val; |
cf74a6f1 |
2828 | |
2829 | switch(size) { |
3aee1200 |
2830 | case 1: val = *((gint8*)data); break; |
2831 | case 2: val = ltt_get_int16(reverse_byte_order, data); break; |
2832 | case 4: val = ltt_get_int32(reverse_byte_order, data); break; |
2833 | case 8: val = ltt_get_int64(reverse_byte_order, data); break; |
2834 | default: val = ltt_get_int64(reverse_byte_order, data); |
2835 | g_critical("get_int : integer size %d unknown", size); |
cf74a6f1 |
2836 | break; |
2837 | } |
2838 | |
3aee1200 |
2839 | return val; |
6cd62ccf |
2840 | } |
3aee1200 |
2841 | |
6cd62ccf |
2842 | /***************************************************************************** |
2843 | *Function name |
eed2ef37 |
2844 | * ltt_get_uint : get an unsigned integer number |
6cd62ccf |
2845 | *Input params |
3aee1200 |
2846 | * reverse_byte_order: must we reverse the byte order ? |
2847 | * size : the size of the integer |
2848 | * ptr : the data pointer |
2849 | *Return value |
2850 | * guint64 : a 64 bits unsigned integer |
6cd62ccf |
2851 | ****************************************************************************/ |
2852 | |
eed2ef37 |
2853 | guint64 ltt_get_uint(gboolean reverse_byte_order, gint size, void *data) |
6cd62ccf |
2854 | { |
3aee1200 |
2855 | guint64 val; |
2856 | |
2857 | switch(size) { |
2858 | case 1: val = *((gint8*)data); break; |
2859 | case 2: val = ltt_get_uint16(reverse_byte_order, data); break; |
2860 | case 4: val = ltt_get_uint32(reverse_byte_order, data); break; |
2861 | case 8: val = ltt_get_uint64(reverse_byte_order, data); break; |
2862 | default: val = ltt_get_uint64(reverse_byte_order, data); |
2863 | g_critical("get_uint : unsigned integer size %d unknown", |
2864 | size); |
2865 | break; |
2866 | } |
2867 | |
2868 | return val; |
6cd62ccf |
2869 | } |
3aee1200 |
2870 | |
2871 | |
a5dcde2f |
2872 | /* get the node name of the system */ |
2873 | |
2874 | char * ltt_trace_system_description_node_name (LttSystemDescription * s) |
2875 | { |
2876 | return s->node_name; |
2877 | } |
2878 | |
2879 | |
2880 | /* get the domain name of the system */ |
2881 | |
2882 | char * ltt_trace_system_description_domain_name (LttSystemDescription * s) |
2883 | { |
2884 | return s->domain_name; |
2885 | } |
2886 | |
2887 | |
2888 | /* get the description of the system */ |
2889 | |
2890 | char * ltt_trace_system_description_description (LttSystemDescription * s) |
2891 | { |
2892 | return s->description; |
2893 | } |
2894 | |
2895 | |
bf33dd50 |
2896 | /* get the NTP corrected start time of the trace */ |
7bd563ec |
2897 | LttTime ltt_trace_start_time(LttTrace *t) |
a5dcde2f |
2898 | { |
7bd563ec |
2899 | return t->start_time; |
a5dcde2f |
2900 | } |
2901 | |
bf33dd50 |
2902 | /* get the monotonic start time of the trace */ |
2903 | LttTime ltt_trace_start_time_monotonic(LttTrace *t) |
2904 | { |
2905 | return t->start_time_from_tsc; |
2906 | } |
2907 | |
18206708 |
2908 | LttTracefile *ltt_tracefile_new() |
2909 | { |
2910 | return g_new(LttTracefile, 1); |
2911 | } |
2912 | |
2913 | void ltt_tracefile_destroy(LttTracefile *tf) |
2914 | { |
2915 | g_free(tf); |
2916 | } |
2917 | |
2918 | void ltt_tracefile_copy(LttTracefile *dest, const LttTracefile *src) |
2919 | { |
2920 | *dest = *src; |
2921 | } |
2922 | |
3aee1200 |
2923 | /* Before library loading... */ |
2924 | |
2925 | static void __attribute__((constructor)) init(void) |
2926 | { |
2927 | LTT_FACILITY_NAME_HEARTBEAT = g_quark_from_string("heartbeat"); |
2928 | LTT_EVENT_NAME_HEARTBEAT = g_quark_from_string("heartbeat"); |
2929 | |
3865ea09 |
2930 | LTT_TRACEFILE_NAME_FACILITIES = g_quark_from_string("/control/facilities"); |
3aee1200 |
2931 | } |
2932 | |