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 | * |
1b44b0b5 |
6 | * This library is free software; you can redistribute it and/or |
7 | * modify it under the terms of the GNU Lesser General Public |
8 | * License Version 2.1 as published by the Free Software Foundation. |
449cb9d7 |
9 | * |
1b44b0b5 |
10 | * This library is distributed in the hope that it will be useful, |
449cb9d7 |
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
1b44b0b5 |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
13 | * Lesser General Public License for more details. |
449cb9d7 |
14 | * |
1b44b0b5 |
15 | * You should have received a copy of the GNU Lesser General Public |
16 | * License along with this library; if not, write to the |
17 | * Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
18 | * Boston, MA 02111-1307, USA. |
449cb9d7 |
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; |
cb310b57 |
235 | t->freq_scale = any->freq_scale; |
b7576a11 |
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; |
cb310b57 |
253 | case 7: |
e939e5b2 |
254 | { |
cb310b57 |
255 | struct ltt_trace_header_0_7 *vheader = |
256 | (struct ltt_trace_header_0_7 *)header; |
e939e5b2 |
257 | tf->buffer_header_size = |
258 | sizeof(struct ltt_block_start_header) |
cb310b57 |
259 | + sizeof(struct ltt_trace_header_0_7); |
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 | |
ae3d0f50 |
645 | int get_tracefile_name_number(gchar *raw_name, |
3aee1200 |
646 | GQuark *name, |
ae3d0f50 |
647 | guint *num, |
648 | guint *tid, |
649 | guint *pgid, |
650 | guint64 *creation) |
6cd62ccf |
651 | { |
3aee1200 |
652 | guint raw_name_len = strlen(raw_name); |
653 | gchar char_name[PATH_MAX]; |
3aee1200 |
654 | int i; |
655 | int underscore_pos; |
656 | long int cpu_num; |
657 | gchar *endptr; |
ae3d0f50 |
658 | gchar *tmpptr; |
3aee1200 |
659 | |
660 | for(i=raw_name_len-1;i>=0;i--) { |
661 | if(raw_name[i] == '_') break; |
662 | } |
ae3d0f50 |
663 | if(i==-1) { /* Either not found or name length is 0 */ |
664 | /* This is a userspace tracefile */ |
665 | strncpy(char_name, raw_name, raw_name_len); |
666 | *name = g_quark_from_string(char_name); |
667 | *num = 0; /* unknown cpu */ |
668 | for(i=0;i<raw_name_len;i++) { |
669 | if(raw_name[i] == '/') { |
670 | break; |
671 | } |
672 | } |
673 | i++; |
674 | for(;i<raw_name_len;i++) { |
675 | if(raw_name[i] == '/') { |
676 | break; |
677 | } |
678 | } |
679 | i++; |
680 | for(;i<raw_name_len;i++) { |
681 | if(raw_name[i] == '-') { |
682 | break; |
683 | } |
684 | } |
685 | if(i == raw_name_len) return -1; |
686 | i++; |
687 | tmpptr = &raw_name[i]; |
688 | for(;i<raw_name_len;i++) { |
689 | if(raw_name[i] == '.') { |
690 | raw_name[i] = ' '; |
691 | break; |
692 | } |
693 | } |
694 | *tid = strtoul(tmpptr, &endptr, 10); |
695 | if(endptr == tmpptr) |
696 | return -1; /* No digit */ |
697 | if(*tid == ULONG_MAX) |
698 | return -1; /* underflow / overflow */ |
699 | i++; |
700 | tmpptr = &raw_name[i]; |
701 | for(;i<raw_name_len;i++) { |
702 | if(raw_name[i] == '.') { |
703 | raw_name[i] = ' '; |
704 | break; |
705 | } |
706 | } |
707 | *pgid = strtoul(tmpptr, &endptr, 10); |
708 | if(endptr == tmpptr) |
709 | return -1; /* No digit */ |
710 | if(*pgid == ULONG_MAX) |
711 | return -1; /* underflow / overflow */ |
712 | i++; |
713 | tmpptr = &raw_name[i]; |
714 | *creation = strtoull(tmpptr, &endptr, 10); |
715 | if(endptr == tmpptr) |
716 | return -1; /* No digit */ |
717 | if(*creation == G_MAXUINT64) |
718 | return -1; /* underflow / overflow */ |
719 | } else { |
720 | underscore_pos = i; |
963b5f2d |
721 | |
ae3d0f50 |
722 | cpu_num = strtol(raw_name+underscore_pos+1, &endptr, 10); |
3aee1200 |
723 | |
ae3d0f50 |
724 | if(endptr == raw_name+underscore_pos+1) |
725 | return -1; /* No digit */ |
726 | if(cpu_num == LONG_MIN || cpu_num == LONG_MAX) |
727 | return -1; /* underflow / overflow */ |
728 | |
729 | strncpy(char_name, raw_name, underscore_pos); |
730 | char_name[underscore_pos] = '\0'; |
731 | |
732 | *name = g_quark_from_string(char_name); |
733 | *num = cpu_num; |
734 | } |
69bd59ed |
735 | |
b333a76b |
736 | |
3aee1200 |
737 | return 0; |
738 | } |
963b5f2d |
739 | |
3aee1200 |
740 | |
3865ea09 |
741 | GData **ltt_trace_get_tracefiles_groups(LttTrace *trace) |
77175651 |
742 | { |
3865ea09 |
743 | return &trace->tracefiles; |
77175651 |
744 | } |
745 | |
746 | |
3865ea09 |
747 | void compute_tracefile_group(GQuark key_id, |
748 | GArray *group, |
749 | struct compute_tracefile_group_args *args) |
77175651 |
750 | { |
751 | int i; |
752 | LttTracefile *tf; |
753 | |
754 | for(i=0; i<group->len; i++) { |
755 | tf = &g_array_index (group, LttTracefile, i); |
756 | if(tf->cpu_online) |
3865ea09 |
757 | args->func(tf, args->func_args); |
77175651 |
758 | } |
759 | } |
760 | |
761 | |
3aee1200 |
762 | void ltt_tracefile_group_destroy(gpointer data) |
763 | { |
764 | GArray *group = (GArray *)data; |
765 | int i; |
766 | LttTracefile *tf; |
767 | |
768 | for(i=0; i<group->len; i++) { |
769 | tf = &g_array_index (group, LttTracefile, i); |
770 | if(tf->cpu_online) |
771 | ltt_tracefile_close(tf); |
772 | } |
773 | g_array_free(group, TRUE); |
6cd62ccf |
774 | } |
775 | |
3aee1200 |
776 | gboolean ltt_tracefile_group_has_cpu_online(gpointer data) |
49bf71b5 |
777 | { |
3aee1200 |
778 | GArray *group = (GArray *)data; |
779 | int i; |
780 | LttTracefile *tf; |
781 | |
782 | for(i=0; i<group->len; i++) { |
783 | tf = &g_array_index (group, LttTracefile, i); |
784 | if(tf->cpu_online) return 1; |
785 | } |
786 | return 0; |
49bf71b5 |
787 | } |
788 | |
789 | |
3aee1200 |
790 | /* Open each tracefile under a specific directory. Put them in a |
791 | * GData : permits to access them using their tracefile group pathname. |
792 | * i.e. access control/modules tracefile group by index : |
793 | * "control/module". |
3865ea09 |
794 | * |
795 | * relative path is the path relative to the trace root |
796 | * root path is the full path |
3aee1200 |
797 | * |
798 | * A tracefile group is simply an array where all the per cpu tracefiles sits. |
799 | */ |
800 | |
69bd59ed |
801 | static int open_tracefiles(LttTrace *trace, gchar *root_path, |
802 | gchar *relative_path) |
f7afe191 |
803 | { |
3aee1200 |
804 | DIR *dir = opendir(root_path); |
805 | struct dirent *entry; |
806 | struct stat stat_buf; |
807 | int ret; |
3865ea09 |
808 | |
69bd59ed |
809 | gchar path[PATH_MAX]; |
3aee1200 |
810 | int path_len; |
69bd59ed |
811 | gchar *path_ptr; |
3aee1200 |
812 | |
3865ea09 |
813 | int rel_path_len; |
69bd59ed |
814 | gchar rel_path[PATH_MAX]; |
815 | gchar *rel_path_ptr; |
cb03932a |
816 | LttTracefile tmp_tf; |
3865ea09 |
817 | |
3aee1200 |
818 | if(dir == NULL) { |
819 | perror(root_path); |
820 | return ENOENT; |
821 | } |
822 | |
823 | strncpy(path, root_path, PATH_MAX-1); |
824 | path_len = strlen(path); |
825 | path[path_len] = '/'; |
826 | path_len++; |
827 | path_ptr = path + path_len; |
828 | |
3865ea09 |
829 | strncpy(rel_path, relative_path, PATH_MAX-1); |
830 | rel_path_len = strlen(rel_path); |
831 | rel_path[rel_path_len] = '/'; |
832 | rel_path_len++; |
833 | rel_path_ptr = rel_path + rel_path_len; |
834 | |
3aee1200 |
835 | while((entry = readdir(dir)) != NULL) { |
836 | |
837 | if(entry->d_name[0] == '.') continue; |
838 | |
839 | strncpy(path_ptr, entry->d_name, PATH_MAX - path_len); |
3865ea09 |
840 | strncpy(rel_path_ptr, entry->d_name, PATH_MAX - rel_path_len); |
3aee1200 |
841 | |
842 | ret = stat(path, &stat_buf); |
843 | if(ret == -1) { |
844 | perror(path); |
845 | continue; |
846 | } |
847 | |
848 | g_debug("Tracefile file or directory : %s\n", path); |
849 | |
74a588bb |
850 | if(strcmp(rel_path, "/eventdefs") == 0) continue; |
851 | |
3aee1200 |
852 | if(S_ISDIR(stat_buf.st_mode)) { |
853 | |
854 | g_debug("Entering subdirectory...\n"); |
3865ea09 |
855 | ret = open_tracefiles(trace, path, rel_path); |
3aee1200 |
856 | if(ret < 0) continue; |
857 | } else if(S_ISREG(stat_buf.st_mode)) { |
3aee1200 |
858 | GQuark name; |
ae3d0f50 |
859 | guint num, tid, pgid; |
860 | guint64 creation; |
3aee1200 |
861 | GArray *group; |
ae3d0f50 |
862 | num = tid = pgid = 0; |
863 | creation = 0; |
864 | if(get_tracefile_name_number(rel_path, &name, &num, &tid, &pgid, &creation)) |
3aee1200 |
865 | continue; /* invalid name */ |
3865ea09 |
866 | |
cb03932a |
867 | g_debug("Opening file.\n"); |
868 | if(ltt_tracefile_open(trace, path, &tmp_tf)) { |
869 | g_info("Error opening tracefile %s", path); |
870 | |
871 | continue; /* error opening the tracefile : bad magic number ? */ |
872 | } |
873 | |
3865ea09 |
874 | g_debug("Tracefile name is %s and number is %u", |
875 | g_quark_to_string(name), num); |
876 | |
cb03932a |
877 | tmp_tf.cpu_online = 1; |
878 | tmp_tf.cpu_num = num; |
d3d34f49 |
879 | tmp_tf.name = name; |
ae3d0f50 |
880 | tmp_tf.tid = tid; |
881 | tmp_tf.pgid = pgid; |
882 | tmp_tf.creation = creation; |
cb03932a |
883 | |
3865ea09 |
884 | group = g_datalist_id_get_data(&trace->tracefiles, name); |
3aee1200 |
885 | if(group == NULL) { |
886 | /* Elements are automatically cleared when the array is allocated. |
887 | * It makes the cpu_online variable set to 0 : cpu offline, by default. |
888 | */ |
889 | group = g_array_sized_new (FALSE, TRUE, sizeof(LttTracefile), 10); |
3865ea09 |
890 | g_datalist_id_set_data_full(&trace->tracefiles, name, |
3aee1200 |
891 | group, ltt_tracefile_group_destroy); |
892 | } |
cb03932a |
893 | |
3aee1200 |
894 | /* Add the per cpu tracefile to the named group */ |
895 | unsigned int old_len = group->len; |
896 | if(num+1 > old_len) |
897 | group = g_array_set_size(group, num+1); |
cb03932a |
898 | g_array_index (group, LttTracefile, num) = tmp_tf; |
3aee1200 |
899 | |
3aee1200 |
900 | } |
901 | } |
902 | |
903 | closedir(dir); |
904 | |
905 | return 0; |
f7afe191 |
906 | } |
907 | |
3aee1200 |
908 | /* ltt_get_facility_description |
909 | * |
29e7c5b3 |
910 | * Opens the file corresponding to the requested facility (identified by fac_id |
3aee1200 |
911 | * and checksum). |
912 | * |
913 | * The name searched is : %trace root%/eventdefs/facname_checksum.xml |
914 | * |
915 | * Returns 0 on success, or 1 on failure. |
916 | */ |
917 | |
918 | static int ltt_get_facility_description(LttFacility *f, |
919 | LttTrace *t, |
920 | LttTracefile *fac_tf) |
6cd62ccf |
921 | { |
3aee1200 |
922 | char desc_file_name[PATH_MAX]; |
923 | const gchar *text; |
924 | guint textlen; |
925 | gint err; |
f5d7967f |
926 | gint arch_spec; |
927 | gint fac_name_len; |
3aee1200 |
928 | |
929 | text = g_quark_to_string(t->pathname); |
930 | textlen = strlen(text); |
931 | |
932 | if(textlen >= PATH_MAX) goto name_error; |
933 | strcpy(desc_file_name, text); |
934 | |
935 | text = "/eventdefs/"; |
936 | textlen+=strlen(text); |
937 | if(textlen >= PATH_MAX) goto name_error; |
938 | strcat(desc_file_name, text); |
939 | |
940 | text = g_quark_to_string(f->name); |
f5d7967f |
941 | fac_name_len = strlen(text); |
942 | textlen+=fac_name_len; |
3aee1200 |
943 | if(textlen >= PATH_MAX) goto name_error; |
944 | strcat(desc_file_name, text); |
f5d7967f |
945 | |
946 | /* arch specific facilities are named like this : name_arch */ |
947 | if(fac_name_len+1 < sizeof("_arch")) |
948 | arch_spec = 0; |
949 | else { |
950 | if(!strcmp(&text[fac_name_len+1-sizeof("_arch")], "_arch")) |
951 | arch_spec = 1; |
952 | else |
953 | arch_spec = 0; |
954 | } |
955 | |
29e7c5b3 |
956 | #if 0 |
3aee1200 |
957 | text = "_"; |
958 | textlen+=strlen(text); |
959 | if(textlen >= PATH_MAX) goto name_error; |
960 | strcat(desc_file_name, text); |
963b5f2d |
961 | |
3aee1200 |
962 | err = snprintf(desc_file_name+textlen, PATH_MAX-textlen-1, |
963 | "%u", f->checksum); |
d2083cab |
964 | if(err < 0) goto name_error; |
3aee1200 |
965 | |
966 | textlen=strlen(desc_file_name); |
967 | |
29e7c5b3 |
968 | #endif //0 |
f5d7967f |
969 | |
970 | if(arch_spec) { |
971 | switch(t->arch_type) { |
972 | case LTT_ARCH_TYPE_I386: |
973 | text = "_i386"; |
974 | break; |
975 | case LTT_ARCH_TYPE_PPC: |
976 | text = "_ppc"; |
977 | break; |
978 | case LTT_ARCH_TYPE_SH: |
979 | text = "_sh"; |
980 | break; |
981 | case LTT_ARCH_TYPE_S390: |
982 | text = "_s390"; |
983 | break; |
984 | case LTT_ARCH_TYPE_MIPS: |
985 | text = "_mips"; |
986 | break; |
987 | case LTT_ARCH_TYPE_ARM: |
988 | text = "_arm"; |
b6fd32e3 |
989 | break; |
f5d7967f |
990 | case LTT_ARCH_TYPE_PPC64: |
991 | text = "_ppc64"; |
b6fd32e3 |
992 | break; |
f5d7967f |
993 | case LTT_ARCH_TYPE_X86_64: |
994 | text = "_x86_64"; |
995 | break; |
996 | default: |
997 | g_error("Trace from unsupported architecture."); |
998 | } |
999 | textlen+=strlen(text); |
1000 | if(textlen >= PATH_MAX) goto name_error; |
1001 | strcat(desc_file_name, text); |
1002 | } |
1003 | |
3aee1200 |
1004 | text = ".xml"; |
1005 | textlen+=strlen(text); |
1006 | if(textlen >= PATH_MAX) goto name_error; |
1007 | strcat(desc_file_name, text); |
29e7c5b3 |
1008 | |
3aee1200 |
1009 | err = ltt_facility_open(f, t, desc_file_name); |
1010 | if(err) goto facility_error; |
3aee1200 |
1011 | |
1012 | return 0; |
1013 | |
1014 | facility_error: |
1015 | name_error: |
1016 | return 1; |
1017 | } |
1018 | |
1019 | static void ltt_fac_ids_destroy(gpointer data) |
1020 | { |
1021 | GArray *fac_ids = (GArray *)data; |
963b5f2d |
1022 | |
3aee1200 |
1023 | g_array_free(fac_ids, TRUE); |
1024 | } |
1025 | |
1026 | |
1027 | /* Presumes the tracefile is already seeked at the beginning. It makes sense, |
1028 | * because it must be done just after the opening */ |
1029 | static int ltt_process_facility_tracefile(LttTracefile *tf) |
1030 | { |
1031 | int err; |
1032 | LttFacility *fac; |
1033 | GArray *fac_ids; |
cb03932a |
1034 | guint i; |
1035 | LttEventType *et; |
3aee1200 |
1036 | |
1037 | while(1) { |
1038 | err = ltt_tracefile_read_seek(tf); |
1039 | if(err == EPERM) goto seek_error; |
1040 | else if(err == ERANGE) break; /* End of tracefile */ |
1041 | |
1042 | err = ltt_tracefile_read_update_event(tf); |
1043 | if(err) goto update_error; |
1044 | |
1045 | /* We are on a facility load/or facility unload/ or heartbeat event */ |
1046 | /* The rules are : |
1047 | * * facility 0 is hardcoded : this is the core facility. It will be shown |
1048 | * in the facility array though, and is shown as "loaded builtin" in the |
1049 | * trace. |
1050 | * It contains event : |
1051 | * 0 : facility load |
1052 | * 1 : facility unload |
1053 | * 2 : state dump facility load |
d2083cab |
1054 | * 3 : heartbeat |
3aee1200 |
1055 | */ |
d2083cab |
1056 | if(tf->event.facility_id != LTT_FACILITY_CORE) { |
1057 | /* Should only contain core facility */ |
3aee1200 |
1058 | g_warning("Error in processing facility file %s, " |
1059 | "should not contain facility id %u.", g_quark_to_string(tf->name), |
1060 | tf->event.facility_id); |
1061 | err = EPERM; |
1062 | goto fac_id_error; |
d2083cab |
1063 | } else { |
3aee1200 |
1064 | |
1065 | struct LttFacilityLoad *fac_load_data; |
b77d1b57 |
1066 | struct LttStateDumpFacilityLoad *fac_state_dump_load_data; |
3aee1200 |
1067 | char *fac_name; |
743e50fd |
1068 | void *pos; |
3aee1200 |
1069 | |
1070 | // FIXME align |
1071 | switch((enum ltt_core_events)tf->event.event_id) { |
1072 | case LTT_EVENT_FACILITY_LOAD: |
b77d1b57 |
1073 | fac_name = (char*)(tf->event.data); |
d2083cab |
1074 | g_debug("Doing LTT_EVENT_FACILITY_LOAD of facility %s", |
1075 | fac_name); |
743e50fd |
1076 | pos = (tf->event.data + strlen(fac_name) + 1); |
1077 | pos += ltt_align((size_t)pos, sizeof(guint32), tf->has_alignment); |
1078 | fac_load_data = (struct LttFacilityLoad *)pos; |
1079 | |
3aee1200 |
1080 | fac = &g_array_index (tf->trace->facilities_by_num, LttFacility, |
1081 | ltt_get_uint32(LTT_GET_BO(tf), &fac_load_data->id)); |
950683f4 |
1082 | /* facility may already exist if trace is paused/unpaused */ |
1083 | if(fac->exists) continue; |
3aee1200 |
1084 | fac->name = g_quark_from_string(fac_name); |
1085 | fac->checksum = ltt_get_uint32(LTT_GET_BO(tf), |
1086 | &fac_load_data->checksum); |
1087 | fac->id = ltt_get_uint32(LTT_GET_BO(tf), &fac_load_data->id); |
1088 | fac->pointer_size = ltt_get_uint32(LTT_GET_BO(tf), |
1089 | &fac_load_data->pointer_size); |
f104d082 |
1090 | fac->int_size = ltt_get_uint32(LTT_GET_BO(tf), |
1091 | &fac_load_data->int_size); |
cb03932a |
1092 | fac->long_size = ltt_get_uint32(LTT_GET_BO(tf), |
1093 | &fac_load_data->long_size); |
eed2ef37 |
1094 | fac->size_t_size = ltt_get_uint32(LTT_GET_BO(tf), |
3aee1200 |
1095 | &fac_load_data->size_t_size); |
1096 | fac->alignment = ltt_get_uint32(LTT_GET_BO(tf), |
2312de30 |
1097 | &fac_load_data->has_alignment); |
3aee1200 |
1098 | |
1099 | if(ltt_get_facility_description(fac, tf->trace, tf)) |
cb03932a |
1100 | continue; /* error opening description */ |
3aee1200 |
1101 | |
1102 | fac->trace = tf->trace; |
cb03932a |
1103 | |
1104 | /* Preset the field offsets */ |
1105 | for(i=0; i<fac->events->len; i++){ |
1106 | et = &g_array_index(fac->events, LttEventType, i); |
743e50fd |
1107 | precompute_offsets(fac, et); |
cb03932a |
1108 | } |
1109 | |
3aee1200 |
1110 | fac->exists = 1; |
1111 | |
77175651 |
1112 | fac_ids = g_datalist_id_get_data(&tf->trace->facilities_by_name, |
1113 | fac->name); |
3aee1200 |
1114 | if(fac_ids == NULL) { |
1115 | fac_ids = g_array_sized_new (FALSE, TRUE, sizeof(guint), 1); |
1116 | g_datalist_id_set_data_full(&tf->trace->facilities_by_name, |
1117 | fac->name, |
1118 | fac_ids, ltt_fac_ids_destroy); |
1119 | } |
1120 | g_array_append_val(fac_ids, fac->id); |
1121 | |
1122 | break; |
1123 | case LTT_EVENT_FACILITY_UNLOAD: |
d2083cab |
1124 | g_debug("Doing LTT_EVENT_FACILITY_UNLOAD"); |
3aee1200 |
1125 | /* We don't care about unload : facilities ID are valid for the whole |
1126 | * trace. They simply won't be used after the unload. */ |
1127 | break; |
1128 | case LTT_EVENT_STATE_DUMP_FACILITY_LOAD: |
b77d1b57 |
1129 | fac_name = (char*)(tf->event.data); |
d2083cab |
1130 | g_debug("Doing LTT_EVENT_STATE_DUMP_FACILITY_LOAD of facility %s", |
1131 | fac_name); |
743e50fd |
1132 | pos = (tf->event.data + strlen(fac_name) + 1); |
1133 | pos += ltt_align((size_t)pos, sizeof(guint32), tf->has_alignment); |
1134 | fac_state_dump_load_data = (struct LttStateDumpFacilityLoad *)pos; |
1135 | |
3aee1200 |
1136 | fac = &g_array_index (tf->trace->facilities_by_num, LttFacility, |
b77d1b57 |
1137 | ltt_get_uint32(LTT_GET_BO(tf), &fac_state_dump_load_data->id)); |
950683f4 |
1138 | /* facility may already exist if trace is paused/unpaused */ |
1139 | if(fac->exists) continue; |
3aee1200 |
1140 | fac->name = g_quark_from_string(fac_name); |
1141 | fac->checksum = ltt_get_uint32(LTT_GET_BO(tf), |
d2083cab |
1142 | &fac_state_dump_load_data->checksum); |
ad34d116 |
1143 | fac->id = ltt_get_uint32(LTT_GET_BO(tf), |
1144 | &fac_state_dump_load_data->id); |
3aee1200 |
1145 | fac->pointer_size = ltt_get_uint32(LTT_GET_BO(tf), |
d2083cab |
1146 | &fac_state_dump_load_data->pointer_size); |
f104d082 |
1147 | fac->int_size = ltt_get_uint32(LTT_GET_BO(tf), |
1148 | &fac_state_dump_load_data->int_size); |
cb03932a |
1149 | fac->long_size = ltt_get_uint32(LTT_GET_BO(tf), |
1150 | &fac_state_dump_load_data->long_size); |
eed2ef37 |
1151 | fac->size_t_size = ltt_get_uint32(LTT_GET_BO(tf), |
d2083cab |
1152 | &fac_state_dump_load_data->size_t_size); |
3aee1200 |
1153 | fac->alignment = ltt_get_uint32(LTT_GET_BO(tf), |
2312de30 |
1154 | &fac_state_dump_load_data->has_alignment); |
3aee1200 |
1155 | if(ltt_get_facility_description(fac, tf->trace, tf)) |
cb03932a |
1156 | continue; /* error opening description */ |
3aee1200 |
1157 | |
1158 | fac->trace = tf->trace; |
1159 | |
cb03932a |
1160 | /* Preset the field offsets */ |
1161 | for(i=0; i<fac->events->len; i++){ |
1162 | et = &g_array_index(fac->events, LttEventType, i); |
743e50fd |
1163 | precompute_offsets(fac, et); |
cb03932a |
1164 | } |
1165 | |
3aee1200 |
1166 | fac->exists = 1; |
1167 | |
1168 | fac_ids = g_datalist_id_get_data(&tf->trace->facilities_by_name, |
1169 | fac->name); |
1170 | if(fac_ids == NULL) { |
1171 | fac_ids = g_array_sized_new (FALSE, TRUE, sizeof(guint), 1); |
1172 | g_datalist_id_set_data_full(&tf->trace->facilities_by_name, |
1173 | fac->name, |
1174 | fac_ids, ltt_fac_ids_destroy); |
1175 | } |
1176 | g_array_append_val(fac_ids, fac->id); |
1177 | |
1178 | break; |
1179 | case LTT_EVENT_HEARTBEAT: |
1180 | break; |
1181 | default: |
1182 | g_warning("Error in processing facility file %s, " |
1183 | "unknown event id %hhu in core facility.", |
1184 | g_quark_to_string(tf->name), |
1185 | tf->event.event_id); |
1186 | err = EPERM; |
1187 | goto event_id_error; |
1188 | } |
1189 | } |
963b5f2d |
1190 | } |
3aee1200 |
1191 | return 0; |
963b5f2d |
1192 | |
3aee1200 |
1193 | /* Error handling */ |
3aee1200 |
1194 | event_id_error: |
1195 | fac_id_error: |
1196 | update_error: |
1197 | seek_error: |
d2083cab |
1198 | g_warning("An error occured in facility tracefile parsing"); |
3aee1200 |
1199 | return err; |
6cd62ccf |
1200 | } |
1201 | |
963b5f2d |
1202 | |
3aee1200 |
1203 | LttTrace *ltt_trace_open(const gchar *pathname) |
1204 | { |
1205 | gchar abs_path[PATH_MAX]; |
1206 | LttTrace * t; |
1207 | LttTracefile *tf; |
1208 | GArray *group; |
b56dcdf2 |
1209 | int i, ret; |
16fcbb80 |
1210 | struct ltt_block_start_header *header; |
b56dcdf2 |
1211 | DIR *dir; |
1212 | struct dirent *entry; |
1213 | guint control_found = 0; |
1214 | guint eventdefs_found = 0; |
1215 | struct stat stat_buf; |
1216 | gchar path[PATH_MAX]; |
3aee1200 |
1217 | |
1218 | t = g_new(LttTrace, 1); |
1219 | if(!t) goto alloc_error; |
1220 | |
1221 | get_absolute_pathname(pathname, abs_path); |
1222 | t->pathname = g_quark_from_string(abs_path); |
1223 | |
3aee1200 |
1224 | g_datalist_init(&t->tracefiles); |
b56dcdf2 |
1225 | |
1226 | /* Test to see if it looks like a trace */ |
1227 | dir = opendir(abs_path); |
1228 | if(dir == NULL) { |
1229 | perror(abs_path); |
1230 | goto open_error; |
1231 | } |
1232 | while((entry = readdir(dir)) != NULL) { |
1233 | strcpy(path, abs_path); |
1234 | strcat(path, "/"); |
1235 | strcat(path, entry->d_name); |
1236 | ret = stat(path, &stat_buf); |
1237 | if(ret == -1) { |
1238 | perror(path); |
1239 | continue; |
1240 | } |
1241 | if(S_ISDIR(stat_buf.st_mode)) { |
1242 | if(strcmp(entry->d_name, "control") == 0) { |
1243 | control_found = 1; |
1244 | } |
1245 | if(strcmp(entry->d_name, "eventdefs") == 0) { |
1246 | eventdefs_found = 1; |
1247 | } |
1248 | } |
1249 | } |
1250 | closedir(dir); |
1251 | |
1252 | if(!control_found || !eventdefs_found) goto find_error; |
1253 | |
1254 | /* Open all the tracefiles */ |
e45551ac |
1255 | if(open_tracefiles(t, abs_path, "")) { |
1256 | g_warning("Error opening tracefile %s", abs_path); |
b56dcdf2 |
1257 | goto find_error; |
e45551ac |
1258 | } |
3aee1200 |
1259 | |
1260 | /* Prepare the facilities containers : array and mapping */ |
1261 | /* Array is zeroed : the "exists" field is set to false by default */ |
1262 | t->facilities_by_num = g_array_sized_new (FALSE, |
1263 | TRUE, sizeof(LttFacility), |
1264 | NUM_FACILITIES); |
1265 | t->facilities_by_num = g_array_set_size(t->facilities_by_num, NUM_FACILITIES); |
1266 | |
1267 | g_datalist_init(&t->facilities_by_name); |
1268 | |
1269 | /* Parse each trace control/facilitiesN files : get runtime fac. info */ |
1270 | group = g_datalist_id_get_data(&t->tracefiles, LTT_TRACEFILE_NAME_FACILITIES); |
1271 | if(group == NULL) { |
1272 | g_error("Trace %s has no facility tracefile", abs_path); |
3865ea09 |
1273 | g_assert(0); |
3aee1200 |
1274 | goto facilities_error; |
1275 | } |
1276 | |
16fcbb80 |
1277 | /* Get the trace information for the control/facility 0 tracefile */ |
1278 | g_assert(group->len > 0); |
1279 | tf = &g_array_index (group, LttTracefile, 0); |
1280 | header = (struct ltt_block_start_header*)tf->buffer.head; |
51551c6f |
1281 | g_assert(parse_trace_header(header->trace, |
1282 | tf, t) == 0); |
b56dcdf2 |
1283 | |
1284 | t->num_cpu = group->len; |
16fcbb80 |
1285 | |
3aee1200 |
1286 | for(i=0; i<group->len; i++) { |
1287 | tf = &g_array_index (group, LttTracefile, i); |
1288 | if(ltt_process_facility_tracefile(tf)) |
1289 | goto facilities_error; |
1290 | } |
3aee1200 |
1291 | |
1292 | return t; |
1293 | |
1294 | /* Error handling */ |
1295 | facilities_error: |
1296 | g_datalist_clear(&t->facilities_by_name); |
1297 | g_array_free(t->facilities_by_num, TRUE); |
b56dcdf2 |
1298 | find_error: |
3aee1200 |
1299 | g_datalist_clear(&t->tracefiles); |
b56dcdf2 |
1300 | open_error: |
3aee1200 |
1301 | g_free(t); |
1302 | alloc_error: |
1303 | return NULL; |
1304 | |
1305 | } |
6cd62ccf |
1306 | |
826f1ab2 |
1307 | GQuark ltt_trace_name(const LttTrace *t) |
6cd62ccf |
1308 | { |
3aee1200 |
1309 | return t->pathname; |
6cd62ccf |
1310 | } |
1311 | |
6cd62ccf |
1312 | |
3aee1200 |
1313 | /****************************************************************************** |
1314 | * When we copy a trace, we want all the opening actions to happen again : |
1315 | * the trace will be reopened and totally independant from the original. |
1316 | * That's why we call ltt_trace_open. |
1317 | *****************************************************************************/ |
1318 | LttTrace *ltt_trace_copy(LttTrace *self) |
963b5f2d |
1319 | { |
3aee1200 |
1320 | return ltt_trace_open(g_quark_to_string(self->pathname)); |
963b5f2d |
1321 | } |
1322 | |
3aee1200 |
1323 | void ltt_trace_close(LttTrace *t) |
6cd62ccf |
1324 | { |
cb03932a |
1325 | guint i; |
1326 | LttFacility *fac; |
1327 | |
1328 | for(i=0; i<t->facilities_by_num->len; i++) { |
1329 | fac = &g_array_index (t->facilities_by_num, LttFacility, i); |
1330 | if(fac->exists) |
1331 | ltt_facility_close(fac); |
1332 | } |
1333 | |
3aee1200 |
1334 | g_datalist_clear(&t->facilities_by_name); |
1335 | g_array_free(t->facilities_by_num, TRUE); |
1336 | g_datalist_clear(&t->tracefiles); |
1337 | g_free(t); |
6cd62ccf |
1338 | } |
1339 | |
3aee1200 |
1340 | |
6cd62ccf |
1341 | /***************************************************************************** |
3aee1200 |
1342 | *Get the system description of the trace |
6cd62ccf |
1343 | ****************************************************************************/ |
1344 | |
3aee1200 |
1345 | LttFacility *ltt_trace_facility_by_id(LttTrace *t, guint8 id) |
6cd62ccf |
1346 | { |
3aee1200 |
1347 | g_assert(id < t->facilities_by_num->len); |
1348 | return &g_array_index(t->facilities_by_num, LttFacility, id); |
1349 | } |
1350 | |
1351 | /* ltt_trace_facility_get_by_name |
1352 | * |
1353 | * Returns the GArray of facility indexes. All the fac_ids that matches the |
1354 | * requested facility name. |
1355 | * |
1356 | * If name is not found, returns NULL. |
1357 | */ |
1358 | GArray *ltt_trace_facility_get_by_name(LttTrace *t, GQuark name) |
1359 | { |
1360 | return g_datalist_id_get_data(&t->facilities_by_name, name); |
6cd62ccf |
1361 | } |
1362 | |
1363 | /***************************************************************************** |
963b5f2d |
1364 | * Functions to discover all the event types in the trace |
6cd62ccf |
1365 | ****************************************************************************/ |
1366 | |
3aee1200 |
1367 | #if 0 |
963b5f2d |
1368 | unsigned ltt_trace_eventtype_number(LttTrace *t) |
6cd62ccf |
1369 | { |
8d1e6362 |
1370 | unsigned int i; |
963b5f2d |
1371 | unsigned count = 0; |
dc1cad90 |
1372 | unsigned int num = t->facility_number; |
963b5f2d |
1373 | LttFacility * f; |
dc1cad90 |
1374 | |
1375 | for(i=0;i<num;i++){ |
963b5f2d |
1376 | f = (LttFacility*)g_ptr_array_index(t->facilities, i); |
1377 | count += f->event_number; |
1378 | } |
1379 | return count; |
6cd62ccf |
1380 | } |
3aee1200 |
1381 | #endif //0 |
6cd62ccf |
1382 | |
3aee1200 |
1383 | #if 0 |
1384 | //use an iteration on all the trace facilities, and inside iteration on all the |
1385 | //event types in each facilities instead. |
963b5f2d |
1386 | LttEventType *ltt_trace_eventtype_get(LttTrace *t, unsigned evId) |
6cd62ccf |
1387 | { |
6e8c19d4 |
1388 | LttEventType *event_type; |
1389 | |
963b5f2d |
1390 | LttFacility * f; |
1391 | f = ltt_trace_facility_by_id(t,evId); |
6e8c19d4 |
1392 | |
1393 | if(unlikely(!f)) event_type = NULL; |
1394 | else event_type = f->events[evId - f->base_id]; |
1395 | |
1396 | return event_type; |
6cd62ccf |
1397 | } |
3aee1200 |
1398 | #endif //0 |
6cd62ccf |
1399 | |
3aee1200 |
1400 | #if 0 |
6cd62ccf |
1401 | /***************************************************************************** |
3aee1200 |
1402 | * ltt_trace_find_tracefile |
1403 | * |
1404 | * Find a tracefile by name and index in the group. |
1405 | * |
1406 | * Returns a pointer to the tracefiles, else NULL. |
6cd62ccf |
1407 | ****************************************************************************/ |
6cd62ccf |
1408 | |
3aee1200 |
1409 | LttTracefile *ltt_trace_find_tracefile(LttTrace *t, const gchar *name) |
6cd62ccf |
1410 | { |
6cd62ccf |
1411 | } |
3aee1200 |
1412 | #endif //0 |
6cd62ccf |
1413 | |
1414 | /***************************************************************************** |
3aee1200 |
1415 | * Get the start time and end time of the trace |
6cd62ccf |
1416 | ****************************************************************************/ |
1417 | |
3aee1200 |
1418 | static void ltt_tracefile_time_span_get(LttTracefile *tf, |
1419 | LttTime *start, LttTime *end) |
6cd62ccf |
1420 | { |
3aee1200 |
1421 | int err; |
6cd62ccf |
1422 | |
3aee1200 |
1423 | err = map_block(tf, 0); |
1424 | if(unlikely(err)) { |
1425 | g_error("Can not map block"); |
1426 | *start = ltt_time_infinite; |
1427 | } else |
1428 | *start = tf->buffer.begin.timestamp; |
1429 | |
1430 | err = map_block(tf, tf->num_blocks - 1); /* Last block */ |
1431 | if(unlikely(err)) { |
1432 | g_error("Can not map block"); |
1433 | *end = ltt_time_zero; |
1434 | } else |
1435 | *end = tf->buffer.end.timestamp; |
6cd62ccf |
1436 | } |
1437 | |
3aee1200 |
1438 | struct tracefile_time_span_get_args { |
1439 | LttTrace *t; |
1440 | LttTime *start; |
1441 | LttTime *end; |
1442 | }; |
963b5f2d |
1443 | |
3aee1200 |
1444 | static void group_time_span_get(GQuark name, gpointer data, gpointer user_data) |
963b5f2d |
1445 | { |
3aee1200 |
1446 | struct tracefile_time_span_get_args *args = |
1447 | (struct tracefile_time_span_get_args*)user_data; |
1448 | |
1449 | GArray *group = (GArray *)data; |
1450 | int i; |
1451 | LttTracefile *tf; |
1452 | LttTime tmp_start; |
1453 | LttTime tmp_end; |
1454 | |
1455 | for(i=0; i<group->len; i++) { |
1456 | tf = &g_array_index (group, LttTracefile, i); |
1457 | if(tf->cpu_online) { |
1458 | ltt_tracefile_time_span_get(tf, &tmp_start, &tmp_end); |
1459 | if(ltt_time_compare(*args->start, tmp_start)>0) *args->start = tmp_start; |
1460 | if(ltt_time_compare(*args->end, tmp_end)<0) *args->end = tmp_end; |
1461 | } |
1462 | } |
6cd62ccf |
1463 | } |
1464 | |
487ad181 |
1465 | void ltt_trace_time_span_get(LttTrace *t, LttTime *start, LttTime *end) |
1466 | { |
3aee1200 |
1467 | LttTime min_start = ltt_time_infinite; |
1468 | LttTime max_end = ltt_time_zero; |
1469 | struct tracefile_time_span_get_args args = { t, &min_start, &max_end }; |
487ad181 |
1470 | |
3aee1200 |
1471 | g_datalist_foreach(&t->tracefiles, &group_time_span_get, &args); |
1472 | |
1473 | if(start != NULL) *start = min_start; |
1474 | if(end != NULL) *end = max_end; |
1475 | |
487ad181 |
1476 | } |
1477 | |
1478 | |
6cd62ccf |
1479 | /***************************************************************************** |
963b5f2d |
1480 | *Get the name of a tracefile |
6cd62ccf |
1481 | ****************************************************************************/ |
1482 | |
348c6ba8 |
1483 | GQuark ltt_tracefile_name(const LttTracefile *tf) |
6cd62ccf |
1484 | { |
963b5f2d |
1485 | return tf->name; |
6cd62ccf |
1486 | } |
1487 | |
348c6ba8 |
1488 | GQuark ltt_tracefile_long_name(const LttTracefile *tf) |
1489 | { |
1490 | return tf->long_name; |
1491 | } |
1492 | |
1493 | |
d3d34f49 |
1494 | |
ae3d0f50 |
1495 | guint ltt_tracefile_cpu(LttTracefile *tf) |
d3d34f49 |
1496 | { |
1497 | return tf->cpu_num; |
1498 | } |
1499 | |
ae3d0f50 |
1500 | guint ltt_tracefile_tid(LttTracefile *tf) |
1501 | { |
1502 | return tf->tid; |
1503 | } |
1504 | |
1505 | guint ltt_tracefile_pgid(LttTracefile *tf) |
1506 | { |
1507 | return tf->pgid; |
1508 | } |
1509 | |
1510 | guint64 ltt_tracefile_creation(LttTracefile *tf) |
1511 | { |
1512 | return tf->creation; |
1513 | } |
80da81ad |
1514 | /***************************************************************************** |
1515 | * Get the number of blocks in the tracefile |
1516 | ****************************************************************************/ |
1517 | |
3aee1200 |
1518 | guint ltt_tracefile_block_number(LttTracefile *tf) |
80da81ad |
1519 | { |
3aee1200 |
1520 | return tf->num_blocks; |
80da81ad |
1521 | } |
1522 | |
caf7a67a |
1523 | |
3aee1200 |
1524 | /* Seek to the first event in a tracefile that has a time equal or greater than |
1525 | * the time passed in parameter. |
1526 | * |
1527 | * If the time parameter is outside the tracefile time span, seek to the first |
27304273 |
1528 | * event or if after, return ERANGE. |
3aee1200 |
1529 | * |
1530 | * If the time parameter is before the first event, we have to seek specially to |
1531 | * there. |
1532 | * |
27304273 |
1533 | * If the time is after the end of the trace, return ERANGE. |
3aee1200 |
1534 | * |
1535 | * Do a binary search to find the right block, then a sequential search in the |
1536 | * block to find the event. |
1537 | * |
1538 | * In the special case where the time requested fits inside a block that has no |
1539 | * event corresponding to the requested time, the first event of the next block |
1540 | * will be seeked. |
1541 | * |
1542 | * IMPORTANT NOTE : // FIXME everywhere... |
1543 | * |
1544 | * You MUST NOT do a ltt_tracefile_read right after a ltt_tracefile_seek_time : |
1545 | * you will jump over an event if you do. |
1546 | * |
1547 | * Return value : 0 : no error, the tf->event can be used |
27304273 |
1548 | * ERANGE : time if after the last event of the trace |
3aee1200 |
1549 | * otherwise : this is an error. |
1550 | * |
1551 | * */ |
1552 | |
1553 | int ltt_tracefile_seek_time(LttTracefile *tf, LttTime time) |
1554 | { |
1555 | int ret = 0; |
1556 | int err; |
1557 | unsigned int block_num, high, low; |
1558 | |
1559 | /* seek at the beginning of trace */ |
1560 | err = map_block(tf, 0); /* First block */ |
1561 | if(unlikely(err)) { |
1562 | g_error("Can not map block"); |
1563 | goto fail; |
caf7a67a |
1564 | } |
1565 | |
3aee1200 |
1566 | /* If the time is lower or equal the beginning of the trace, |
1567 | * go to the first event. */ |
1568 | if(ltt_time_compare(time, tf->buffer.begin.timestamp) <= 0) { |
1569 | ret = ltt_tracefile_read(tf); |
27304273 |
1570 | if(ret == ERANGE) goto range; |
1571 | else if (ret) goto fail; |
3aee1200 |
1572 | goto found; /* There is either no event in the trace or the event points |
1573 | to the first event in the trace */ |
1574 | } |
caf7a67a |
1575 | |
3aee1200 |
1576 | err = map_block(tf, tf->num_blocks - 1); /* Last block */ |
1577 | if(unlikely(err)) { |
1578 | g_error("Can not map block"); |
1579 | goto fail; |
caf7a67a |
1580 | } |
6cd62ccf |
1581 | |
27304273 |
1582 | /* If the time is after the end of the trace, return ERANGE. */ |
1583 | if(ltt_time_compare(time, tf->buffer.end.timestamp) > 0) { |
1584 | goto range; |
3aee1200 |
1585 | } |
62e55dd6 |
1586 | |
3aee1200 |
1587 | /* Binary search the block */ |
1588 | high = tf->num_blocks - 1; |
1589 | low = 0; |
1590 | |
1591 | while(1) { |
1592 | block_num = ((high-low) / 2) + low; |
1593 | |
1594 | err = map_block(tf, block_num); |
1595 | if(unlikely(err)) { |
1596 | g_error("Can not map block"); |
1597 | goto fail; |
db55eaae |
1598 | } |
3aee1200 |
1599 | if(high == low) { |
1600 | /* We cannot divide anymore : this is what would happen if the time |
1601 | * requested was exactly between two consecutive buffers'end and start |
1602 | * timestamps. This is also what would happend if we didn't deal with out |
1603 | * of span cases prior in this function. */ |
1604 | /* The event is right in the buffer! |
1605 | * (or in the next buffer first event) */ |
1606 | while(1) { |
1607 | ret = ltt_tracefile_read(tf); |
27304273 |
1608 | if(ret == ERANGE) goto range; /* ERANGE or EPERM */ |
3aee1200 |
1609 | else if(ret) goto fail; |
1610 | |
d9e13a0f |
1611 | if(ltt_time_compare(time, tf->event.event_time) <= 0) |
e45551ac |
1612 | goto found; |
3aee1200 |
1613 | } |
1614 | |
27304273 |
1615 | } else if(ltt_time_compare(time, tf->buffer.begin.timestamp) < 0) { |
3aee1200 |
1616 | /* go to lower part */ |
b1369bef |
1617 | high = block_num - 1; |
3aee1200 |
1618 | } else if(ltt_time_compare(time, tf->buffer.end.timestamp) > 0) { |
1619 | /* go to higher part */ |
b1369bef |
1620 | low = block_num + 1; |
3aee1200 |
1621 | } else {/* The event is right in the buffer! |
1622 | (or in the next buffer first event) */ |
1623 | while(1) { |
27304273 |
1624 | ret = ltt_tracefile_read(tf); |
1625 | if(ret == ERANGE) goto range; /* ERANGE or EPERM */ |
3aee1200 |
1626 | else if(ret) goto fail; |
1627 | |
d9e13a0f |
1628 | if(ltt_time_compare(time, tf->event.event_time) <= 0) |
3aee1200 |
1629 | break; |
6cd62ccf |
1630 | } |
3aee1200 |
1631 | goto found; |
6cd62ccf |
1632 | } |
6cd62ccf |
1633 | } |
3aee1200 |
1634 | |
1635 | found: |
1636 | return 0; |
27304273 |
1637 | range: |
1638 | return ERANGE; |
3aee1200 |
1639 | |
1640 | /* Error handling */ |
1641 | fail: |
1642 | g_error("ltt_tracefile_seek_time failed on tracefile %s", |
1643 | g_quark_to_string(tf->name)); |
1644 | return EPERM; |
6cd62ccf |
1645 | } |
1646 | |
80da81ad |
1647 | |
3aee1200 |
1648 | int ltt_tracefile_seek_position(LttTracefile *tf, const LttEventPosition *ep) { |
80da81ad |
1649 | |
3aee1200 |
1650 | int err; |
1651 | |
1652 | if(ep->tracefile != tf) { |
1653 | goto fail; |
80da81ad |
1654 | } |
1655 | |
3aee1200 |
1656 | err = map_block(tf, ep->block); |
1657 | if(unlikely(err)) { |
1658 | g_error("Can not map block"); |
1659 | goto fail; |
1660 | } |
1661 | |
1662 | tf->event.offset = ep->offset; |
18206708 |
1663 | |
78f79181 |
1664 | /* Put back the event real tsc */ |
1665 | tf->event.tsc = ep->tsc; |
1666 | tf->buffer.tsc = ep->tsc; |
1667 | |
3aee1200 |
1668 | err = ltt_tracefile_read_update_event(tf); |
1669 | if(err) goto fail; |
1670 | err = ltt_tracefile_read_op(tf); |
1671 | if(err) goto fail; |
80da81ad |
1672 | |
a0c1f622 |
1673 | return 0; |
3aee1200 |
1674 | |
1675 | fail: |
1676 | g_error("ltt_tracefile_seek_time failed on tracefile %s", |
1677 | g_quark_to_string(tf->name)); |
a0c1f622 |
1678 | return 1; |
3aee1200 |
1679 | } |
1680 | |
ae3d0f50 |
1681 | LttTime ltt_interpolate_time_from_tsc(LttTracefile *tf, guint64 tsc) |
3aee1200 |
1682 | { |
1683 | LttTime time; |
ae3d0f50 |
1684 | |
1685 | if(tsc > tf->trace->start_tsc) { |
1686 | time = ltt_time_from_uint64( |
1687 | (double)(tsc - tf->trace->start_tsc) |
1688 | * (1000000000.0 / tf->trace->freq_scale) |
1689 | / (double)tf->trace->start_freq); |
1690 | time = ltt_time_add(tf->trace->start_time_from_tsc, time); |
1691 | } else { |
1692 | time = ltt_time_from_uint64( |
1693 | (double)(tf->trace->start_tsc - tsc) |
1694 | * (1000000000.0 / tf->trace->freq_scale) |
1695 | / (double)tf->trace->start_freq); |
1696 | time = ltt_time_sub(tf->trace->start_time_from_tsc, time); |
1697 | } |
3aee1200 |
1698 | return time; |
80da81ad |
1699 | } |
1700 | |
ae3d0f50 |
1701 | /* Calculate the real event time based on the buffer boundaries */ |
1702 | LttTime ltt_interpolate_time(LttTracefile *tf, LttEvent *event) |
1703 | { |
1704 | return ltt_interpolate_time_from_tsc(tf, tf->buffer.tsc); |
1705 | } |
1706 | |
eed2ef37 |
1707 | |
1708 | /* Get the current event of the tracefile : valid until the next read */ |
1709 | LttEvent *ltt_tracefile_get_event(LttTracefile *tf) |
1710 | { |
1711 | return &tf->event; |
1712 | } |
1713 | |
1714 | |
1715 | |
6cd62ccf |
1716 | /***************************************************************************** |
1717 | *Function name |
3aee1200 |
1718 | * ltt_tracefile_read : Read the next event in the tracefile |
6cd62ccf |
1719 | *Input params |
1720 | * t : tracefile |
1721 | *Return value |
3aee1200 |
1722 | * |
1723 | * Returns 0 if an event can be used in tf->event. |
d822520b |
1724 | * Returns ERANGE on end of trace. The event in tf->event still can be used |
1725 | * (if the last block was not empty). |
3aee1200 |
1726 | * Returns EPERM on error. |
1727 | * |
1728 | * This function does make the tracefile event structure point to the event |
1729 | * currently pointed to by the tf->event. |
1730 | * |
1731 | * Note : you must call a ltt_tracefile_seek to the beginning of the trace to |
1732 | * reinitialize it after an error if you want results to be coherent. |
1733 | * It would be the case if a end of trace last buffer has no event : the end |
1734 | * of trace wouldn't be returned, but an error. |
1735 | * We make the assumption there is at least one event per buffer. |
6cd62ccf |
1736 | ****************************************************************************/ |
1737 | |
3aee1200 |
1738 | int ltt_tracefile_read(LttTracefile *tf) |
6cd62ccf |
1739 | { |
963b5f2d |
1740 | int err; |
6cd62ccf |
1741 | |
3aee1200 |
1742 | err = ltt_tracefile_read_seek(tf); |
1743 | if(err) return err; |
1744 | err = ltt_tracefile_read_update_event(tf); |
1745 | if(err) return err; |
1746 | err = ltt_tracefile_read_op(tf); |
1747 | if(err) return err; |
1748 | |
1749 | return 0; |
1750 | } |
1751 | |
1752 | int ltt_tracefile_read_seek(LttTracefile *tf) |
1753 | { |
1754 | int err; |
1755 | |
1756 | /* Get next buffer until we finally have an event, or end of trace */ |
1757 | while(1) { |
1758 | err = ltt_seek_next_event(tf); |
1759 | if(unlikely(err == ENOPROTOOPT)) { |
1760 | return EPERM; |
bdc36259 |
1761 | } |
bdc36259 |
1762 | |
3aee1200 |
1763 | /* Are we at the end of the buffer ? */ |
1764 | if(err == ERANGE) { |
1765 | if(unlikely(tf->buffer.index == tf->num_blocks-1)){ /* end of trace ? */ |
1766 | return ERANGE; |
1767 | } else { |
1768 | /* get next block */ |
1769 | err = map_block(tf, tf->buffer.index + 1); |
1770 | if(unlikely(err)) { |
1771 | g_error("Can not map block"); |
1772 | return EPERM; |
1773 | } |
1774 | } |
1775 | } else break; /* We found an event ! */ |
1776 | } |
2dee981d |
1777 | |
3aee1200 |
1778 | return 0; |
1779 | } |
18206708 |
1780 | |
1781 | |
3aee1200 |
1782 | /* do specific operation on events */ |
1783 | int ltt_tracefile_read_op(LttTracefile *tf) |
1784 | { |
3aee1200 |
1785 | LttEvent *event; |
1786 | |
1787 | event = &tf->event; |
18206708 |
1788 | |
3aee1200 |
1789 | /* do event specific operation */ |
40331ba8 |
1790 | |
3aee1200 |
1791 | /* do something if its an heartbeat event : increment the heartbeat count */ |
1792 | //if(event->facility_id == LTT_FACILITY_CORE) |
1793 | // if(event->event_id == LTT_EVENT_HEARTBEAT) |
1794 | // tf->cur_heart_beat_number++; |
1795 | |
1796 | return 0; |
6cd62ccf |
1797 | } |
1798 | |
6cd62ccf |
1799 | |
3aee1200 |
1800 | /* same as ltt_tracefile_read, but does not seek to the next event nor call |
1801 | * event specific operation. */ |
1802 | int ltt_tracefile_read_update_event(LttTracefile *tf) |
6cd62ccf |
1803 | { |
3aee1200 |
1804 | void * pos; |
1805 | LttEvent *event; |
1806 | |
1807 | event = &tf->event; |
eed2ef37 |
1808 | pos = tf->buffer.head + event->offset; |
3aee1200 |
1809 | |
1810 | /* Read event header */ |
1811 | |
f104d082 |
1812 | /* Align the head */ |
2312de30 |
1813 | pos += ltt_align((size_t)pos, tf->trace->arch_size, tf->has_alignment); |
3aee1200 |
1814 | |
cb310b57 |
1815 | if(tf->trace->has_heartbeat) { |
1816 | event->timestamp = ltt_get_uint32(LTT_GET_BO(tf), |
1817 | pos); |
1818 | /* 32 bits -> 64 bits tsc */ |
1819 | /* note : still works for seek and non seek cases. */ |
1820 | if(event->timestamp < (0xFFFFFFFFULL&tf->buffer.tsc)) { |
1821 | tf->buffer.tsc = ((tf->buffer.tsc&0xFFFFFFFF00000000ULL) |
1822 | + 0x100000000ULL) |
1823 | | (guint64)event->timestamp; |
1824 | event->tsc = tf->buffer.tsc; |
1825 | } else { |
1826 | /* no overflow */ |
1827 | tf->buffer.tsc = (tf->buffer.tsc&0xFFFFFFFF00000000ULL) |
1828 | | (guint64)event->timestamp; |
1829 | event->tsc = tf->buffer.tsc; |
1830 | } |
1831 | pos += sizeof(guint32); |
1832 | } else { |
1833 | event->tsc = ltt_get_uint64(LTT_GET_BO(tf), pos); |
1834 | tf->buffer.tsc = event->tsc; |
1835 | pos += sizeof(guint64); |
1836 | } |
cb310b57 |
1837 | event->event_time = ltt_interpolate_time(tf, event); |
eed2ef37 |
1838 | event->facility_id = *(guint8*)pos; |
3aee1200 |
1839 | pos += sizeof(guint8); |
1840 | |
eed2ef37 |
1841 | event->event_id = *(guint8*)pos; |
3aee1200 |
1842 | pos += sizeof(guint8); |
1843 | |
b77d1b57 |
1844 | event->event_size = ltt_get_uint16(LTT_GET_BO(tf), pos); |
1845 | pos += sizeof(guint16); |
1846 | |
f104d082 |
1847 | /* Align the head */ |
2312de30 |
1848 | pos += ltt_align((size_t)pos, tf->trace->arch_size, tf->has_alignment); |
f104d082 |
1849 | |
3aee1200 |
1850 | event->data = pos; |
1851 | |
77175651 |
1852 | /* get the data size and update the event fields with the current |
1853 | * information */ |
eed2ef37 |
1854 | ltt_update_event_size(tf); |
77175651 |
1855 | |
3aee1200 |
1856 | return 0; |
6cd62ccf |
1857 | } |
1858 | |
507915ee |
1859 | |
6cd62ccf |
1860 | /**************************************************************************** |
1861 | *Function name |
3aee1200 |
1862 | * map_block : map a block from the file |
6cd62ccf |
1863 | *Input Params |
1864 | * lttdes : ltt trace file |
1865 | * whichBlock : the block which will be read |
1866 | *return value |
1867 | * 0 : success |
1868 | * EINVAL : lseek fail |
1869 | * EIO : can not read from the file |
1870 | ****************************************************************************/ |
1871 | |
3aee1200 |
1872 | static gint map_block(LttTracefile * tf, guint block_num) |
6cd62ccf |
1873 | { |
b77d1b57 |
1874 | int page_size = getpagesize(); |
3aee1200 |
1875 | struct ltt_block_start_header *header; |
1876 | |
1877 | g_assert(block_num < tf->num_blocks); |
6cd62ccf |
1878 | |
f628823c |
1879 | if(tf->buffer.head != NULL) { |
1880 | if(munmap(tf->buffer.head, PAGE_ALIGN(tf->buf_size))) { |
1881 | g_warning("unmap size : %u\n", |
1882 | PAGE_ALIGN(tf->buf_size)); |
1883 | perror("munmap error"); |
1884 | g_assert(0); |
1885 | } |
1886 | } |
1887 | |
ac849774 |
1888 | |
3aee1200 |
1889 | /* Multiple of pages aligned head */ |
b77d1b57 |
1890 | tf->buffer.head = mmap(0, |
f628823c |
1891 | PAGE_ALIGN(tf->buf_size), |
b77d1b57 |
1892 | PROT_READ, MAP_PRIVATE, tf->fd, |
f628823c |
1893 | PAGE_ALIGN((off_t)tf->buf_size * (off_t)block_num)); |
3aee1200 |
1894 | |
3865ea09 |
1895 | if(tf->buffer.head == MAP_FAILED) { |
3aee1200 |
1896 | perror("Error in allocating memory for buffer of tracefile"); |
3865ea09 |
1897 | g_assert(0); |
3aee1200 |
1898 | goto map_error; |
6cd62ccf |
1899 | } |
3865ea09 |
1900 | g_assert( ( (guint)tf->buffer.head&(8-1) ) == 0); // make sure it's aligned. |
3aee1200 |
1901 | |
6cd62ccf |
1902 | |
3aee1200 |
1903 | tf->buffer.index = block_num; |
1904 | |
1905 | header = (struct ltt_block_start_header*)tf->buffer.head; |
1906 | |
791dffa6 |
1907 | #if 0 |
986e2a7c |
1908 | tf->buffer.begin.timestamp = ltt_time_add( |
1909 | ltt_time_from_uint64( |
1910 | ltt_get_uint64(LTT_GET_BO(tf), |
1911 | &header->begin.timestamp) |
1912 | - tf->trace->start_monotonic), |
1913 | tf->trace->start_time); |
791dffa6 |
1914 | #endif //0 |
348c6ba8 |
1915 | //g_debug("block %u begin : %lu.%lu", block_num, |
1916 | // tf->buffer.begin.timestamp.tv_sec, tf->buffer.begin.timestamp.tv_nsec); |
3aee1200 |
1917 | tf->buffer.begin.cycle_count = ltt_get_uint64(LTT_GET_BO(tf), |
1918 | &header->begin.cycle_count); |
986e2a7c |
1919 | tf->buffer.begin.freq = ltt_get_uint64(LTT_GET_BO(tf), |
1920 | &header->begin.freq); |
ae3d0f50 |
1921 | if(tf->buffer.begin.freq == 0) |
1922 | tf->buffer.begin.freq = tf->trace->start_freq; |
1923 | |
1924 | tf->buffer.begin.timestamp = ltt_interpolate_time_from_tsc(tf, |
1925 | tf->buffer.begin.cycle_count); |
1926 | #if 0 |
1927 | ltt_time_add( |
791dffa6 |
1928 | ltt_time_from_uint64( |
88612d17 |
1929 | (double)(tf->buffer.begin.cycle_count |
1930 | - tf->trace->start_tsc) * 1000000.0 |
791dffa6 |
1931 | / (double)tf->trace->start_freq), |
ae3d0f50 |
1932 | tf->trace->start_time_from_tsc); |
1933 | #endif //0 |
791dffa6 |
1934 | #if 0 |
1935 | |
986e2a7c |
1936 | tf->buffer.end.timestamp = ltt_time_add( |
1937 | ltt_time_from_uint64( |
1938 | ltt_get_uint64(LTT_GET_BO(tf), |
1939 | &header->end.timestamp) |
1940 | - tf->trace->start_monotonic), |
1941 | tf->trace->start_time); |
791dffa6 |
1942 | #endif //0 |
348c6ba8 |
1943 | //g_debug("block %u end : %lu.%lu", block_num, |
1944 | // tf->buffer.end.timestamp.tv_sec, tf->buffer.end.timestamp.tv_nsec); |
3aee1200 |
1945 | tf->buffer.end.cycle_count = ltt_get_uint64(LTT_GET_BO(tf), |
1946 | &header->end.cycle_count); |
986e2a7c |
1947 | tf->buffer.end.freq = ltt_get_uint64(LTT_GET_BO(tf), |
1948 | &header->end.freq); |
ae3d0f50 |
1949 | if(tf->buffer.end.freq == 0) |
1950 | tf->buffer.end.freq = tf->trace->start_freq; |
1951 | |
3aee1200 |
1952 | tf->buffer.lost_size = ltt_get_uint32(LTT_GET_BO(tf), |
986e2a7c |
1953 | &header->lost_size); |
ae3d0f50 |
1954 | tf->buffer.end.timestamp = ltt_interpolate_time_from_tsc(tf, |
1955 | tf->buffer.end.cycle_count); |
1956 | #if 0 |
1957 | ltt_time_add( |
791dffa6 |
1958 | ltt_time_from_uint64( |
88612d17 |
1959 | (double)(tf->buffer.end.cycle_count |
1960 | - tf->trace->start_tsc) * 1000000.0 |
791dffa6 |
1961 | / (double)tf->trace->start_freq), |
88612d17 |
1962 | tf->trace->start_time_from_tsc); |
ae3d0f50 |
1963 | #endif //0 |
3aee1200 |
1964 | tf->buffer.tsc = tf->buffer.begin.cycle_count; |
1965 | tf->event.tsc = tf->buffer.tsc; |
986e2a7c |
1966 | tf->buffer.freq = tf->buffer.begin.freq; |
3aee1200 |
1967 | |
1968 | /* FIXME |
1969 | * eventually support variable buffer size : will need a partial pre-read of |
1970 | * the headers to create an index when we open the trace... eventually. */ |
f628823c |
1971 | g_assert(tf->buf_size == ltt_get_uint32(LTT_GET_BO(tf), |
3aee1200 |
1972 | &header->buf_size)); |
507915ee |
1973 | |
3aee1200 |
1974 | /* Now that the buffer is mapped, calculate the time interpolation for the |
1975 | * block. */ |
1976 | |
791dffa6 |
1977 | // tf->buffer.nsecs_per_cycle = calc_nsecs_per_cycle(tf); |
1978 | //tf->buffer.cyc2ns_scale = calc_nsecs_per_cycle(tf); |
3aee1200 |
1979 | |
1980 | /* Make the current event point to the beginning of the buffer : |
1981 | * it means that the event read must get the first event. */ |
1982 | tf->event.tracefile = tf; |
1983 | tf->event.block = block_num; |
eed2ef37 |
1984 | tf->event.offset = 0; |
3aee1200 |
1985 | |
1986 | return 0; |
6cd62ccf |
1987 | |
3aee1200 |
1988 | map_error: |
1989 | return -errno; |
40331ba8 |
1990 | |
6cd62ccf |
1991 | } |
1992 | |
77175651 |
1993 | /* It will update the fields offsets too */ |
1994 | void ltt_update_event_size(LttTracefile *tf) |
6cd62ccf |
1995 | { |
2312de30 |
1996 | off_t size = 0; |
3aee1200 |
1997 | |
1998 | /* Specific handling of core events : necessary to read the facility control |
1999 | * tracefile. */ |
77175651 |
2000 | LttFacility *f = ltt_trace_get_facility_by_num(tf->trace, |
2001 | tf->event.facility_id); |
6cd62ccf |
2002 | |
3865ea09 |
2003 | if(likely(tf->event.facility_id == LTT_FACILITY_CORE)) { |
2004 | switch((enum ltt_core_events)tf->event.event_id) { |
2005 | case LTT_EVENT_FACILITY_LOAD: |
b77d1b57 |
2006 | size = strlen((char*)tf->event.data) + 1; |
348c6ba8 |
2007 | //g_debug("Update Event facility load of facility %s", (char*)tf->event.data); |
743e50fd |
2008 | size += ltt_align(size, sizeof(guint32), tf->has_alignment); |
c4afd5d8 |
2009 | size += sizeof(struct LttFacilityLoad); |
3865ea09 |
2010 | break; |
2011 | case LTT_EVENT_FACILITY_UNLOAD: |
348c6ba8 |
2012 | //g_debug("Update Event facility unload"); |
3865ea09 |
2013 | size = sizeof(struct LttFacilityUnload); |
2014 | break; |
2015 | case LTT_EVENT_STATE_DUMP_FACILITY_LOAD: |
b77d1b57 |
2016 | size = strlen((char*)tf->event.data) + 1; |
743e50fd |
2017 | size += ltt_align(size, sizeof(guint32), tf->has_alignment); |
348c6ba8 |
2018 | //g_debug("Update Event facility load state dump of facility %s", |
2019 | // (char*)tf->event.data); |
c4afd5d8 |
2020 | size += sizeof(struct LttStateDumpFacilityLoad); |
3865ea09 |
2021 | break; |
2022 | case LTT_EVENT_HEARTBEAT: |
348c6ba8 |
2023 | //g_debug("Update Event heartbeat"); |
3865ea09 |
2024 | size = sizeof(TimeHeartbeat); |
2025 | break; |
2026 | default: |
2027 | g_warning("Error in getting event size : tracefile %s, " |
2028 | "unknown event id %hhu in core facility.", |
2029 | g_quark_to_string(tf->name), |
2030 | tf->event.event_id); |
2031 | goto event_id_error; |
2dee981d |
2032 | |
77175651 |
2033 | } |
3aee1200 |
2034 | } else { |
c4afd5d8 |
2035 | if(!f->exists) { |
9d7e0c25 |
2036 | g_warning("Unknown facility %hhu (0x%hhx) in tracefile %s", |
c4afd5d8 |
2037 | tf->event.facility_id, |
2038 | tf->event.facility_id, |
2039 | g_quark_to_string(tf->name)); |
2040 | goto facility_error; |
2041 | } |
2042 | |
3aee1200 |
2043 | LttEventType *event_type = |
2044 | ltt_facility_eventtype_get(f, tf->event.event_id); |
c4afd5d8 |
2045 | |
2046 | if(!event_type) { |
9d7e0c25 |
2047 | g_warning("Unknown event id %hhu in facility %s in tracefile %s", |
c4afd5d8 |
2048 | tf->event.event_id, |
2049 | g_quark_to_string(f->name), |
2050 | g_quark_to_string(tf->name)); |
2051 | goto event_type_error; |
2052 | } |
f104d082 |
2053 | |
2054 | /* Compute the dynamic offsets */ |
743e50fd |
2055 | compute_offsets(tf, f, event_type, &size, tf->event.data); |
c4afd5d8 |
2056 | |
348c6ba8 |
2057 | //g_debug("Event root field : f.e %hhu.%hhu size %zd", |
2058 | // tf->event.facility_id, |
2059 | // tf->event.event_id, size); |
3aee1200 |
2060 | } |
3aee1200 |
2061 | |
77175651 |
2062 | tf->event.data_size = size; |
eed2ef37 |
2063 | |
b77d1b57 |
2064 | /* Check consistency between kernel and LTTV structure sizes */ |
055d359a |
2065 | if(tf->event.event_size == 0xFFFF) { |
2066 | /* Event size too big to fit in the event size field */ |
2067 | tf->event.event_size = tf->event.data_size; |
2068 | } |
b77d1b57 |
2069 | g_assert(tf->event.data_size == tf->event.event_size); |
9eb6aa7a |
2070 | |
eed2ef37 |
2071 | return; |
2072 | |
c4afd5d8 |
2073 | facility_error: |
2074 | event_type_error: |
3aee1200 |
2075 | event_id_error: |
9d7e0c25 |
2076 | if(tf->event.event_size == 0xFFFF) { |
2077 | g_error("Cannot jump over an unknown event bigger than 0xFFFE bytes"); |
2078 | } |
2079 | /* The facility is unknown : use the kernel information about this event |
2080 | * to jump over it. */ |
2081 | tf->event.data_size = tf->event.event_size; |
6cd62ccf |
2082 | } |
2083 | |
6cd62ccf |
2084 | |
3aee1200 |
2085 | /* Take the tf current event offset and use the event facility id and event id |
2086 | * to figure out where is the next event offset. |
2087 | * |
2088 | * This is an internal function not aiming at being used elsewhere : it will |
2089 | * not jump over the current block limits. Please consider using |
2090 | * ltt_tracefile_read to do this. |
2091 | * |
2092 | * Returns 0 on success |
2093 | * ERANGE if we are at the end of the buffer. |
2094 | * ENOPROTOOPT if an error occured when getting the current event size. |
2095 | */ |
2096 | static int ltt_seek_next_event(LttTracefile *tf) |
6cd62ccf |
2097 | { |
3aee1200 |
2098 | int ret = 0; |
2099 | void *pos; |
3aee1200 |
2100 | |
2101 | /* seek over the buffer header if we are at the buffer start */ |
eed2ef37 |
2102 | if(tf->event.offset == 0) { |
51551c6f |
2103 | tf->event.offset += tf->buffer_header_size; |
b77d1b57 |
2104 | |
f628823c |
2105 | if(tf->event.offset == tf->buf_size - tf->buffer.lost_size) { |
b77d1b57 |
2106 | ret = ERANGE; |
2107 | } |
3aee1200 |
2108 | goto found; |
2109 | } |
6cd62ccf |
2110 | |
6cd62ccf |
2111 | |
3aee1200 |
2112 | pos = tf->event.data; |
2113 | |
77175651 |
2114 | if(tf->event.data_size < 0) goto error; |
3aee1200 |
2115 | |
77175651 |
2116 | pos += (size_t)tf->event.data_size; |
3aee1200 |
2117 | |
eed2ef37 |
2118 | tf->event.offset = pos - tf->buffer.head; |
cb03932a |
2119 | |
f628823c |
2120 | if(tf->event.offset == tf->buf_size - tf->buffer.lost_size) { |
cb03932a |
2121 | ret = ERANGE; |
2122 | goto found; |
2123 | } |
36d36c9f |
2124 | g_assert(tf->event.offset < tf->buf_size - tf->buffer.lost_size); |
3aee1200 |
2125 | |
2126 | found: |
2127 | return ret; |
2128 | |
2129 | error: |
2130 | g_error("Error in ltt_seek_next_event for tracefile %s", |
2131 | g_quark_to_string(tf->name)); |
2132 | return ENOPROTOOPT; |
6cd62ccf |
2133 | } |
2134 | |
791dffa6 |
2135 | #if 0 |
6cd62ccf |
2136 | /***************************************************************************** |
2137 | *Function name |
3aee1200 |
2138 | * calc_nsecs_per_cycle : calculate nsecs per cycle for current block |
986e2a7c |
2139 | * |
2140 | * 1.0 / (freq(khz) *1000) * 1000000000 |
6cd62ccf |
2141 | *Input Params |
2142 | * t : tracefile |
2143 | ****************************************************************************/ |
986e2a7c |
2144 | /* from timer_tsc.c */ |
2145 | #define CYC2NS_SCALE_FACTOR 10 |
791dffa6 |
2146 | static guint32 calc_nsecs_per_cycle(LttTracefile * tf) |
6cd62ccf |
2147 | { |
986e2a7c |
2148 | //return 1e6 / (double)tf->buffer.freq; |
791dffa6 |
2149 | guint32 cpu_mhz = tf->buffer.freq / 1000; |
2150 | guint32 cyc2ns_scale = (1000 << CYC2NS_SCALE_FACTOR)/cpu_mhz; |
6cd62ccf |
2151 | |
791dffa6 |
2152 | return cyc2ns_scale; |
986e2a7c |
2153 | // return 1e6 / (double)tf->buffer.freq; |
3aee1200 |
2154 | } |
791dffa6 |
2155 | |
2156 | static guint64 cycles_2_ns(LttTracefile *tf, guint64 cycles) |
2157 | { |
2158 | return (cycles * tf->buffer.cyc2ns_scale) >> CYC2NS_SCALE_FACTOR; |
2159 | } |
2160 | #endif //0 |
2161 | |
3aee1200 |
2162 | #if 0 |
2163 | void setFieldsOffset(LttTracefile *tf, LttEventType *evT,void *evD) |
2164 | { |
2165 | LttField * rootFld = evT->root_field; |
2166 | // rootFld->base_address = evD; |
2dee981d |
2167 | |
3aee1200 |
2168 | if(likely(rootFld)) |
2169 | rootFld->field_size = getFieldtypeSize(tf, evT->facility, |
2170 | evT, 0,0,rootFld, evD); |
6cd62ccf |
2171 | } |
3aee1200 |
2172 | #endif //0 |
f104d082 |
2173 | #if 0 |
3aee1200 |
2174 | /***************************************************************************** |
6cd62ccf |
2175 | *Function name |
3aee1200 |
2176 | * set_fields_offsets : set the precomputable offset of the fields |
6cd62ccf |
2177 | *Input params |
3aee1200 |
2178 | * tracefile : opened trace file |
2179 | * event_type : the event type |
6cd62ccf |
2180 | ****************************************************************************/ |
2181 | |
3aee1200 |
2182 | void set_fields_offsets(LttTracefile *tf, LttEventType *event_type) |
6cd62ccf |
2183 | { |
3aee1200 |
2184 | LttField *field = event_type->root_field; |
2185 | enum field_status fixed_root = FIELD_FIXED, fixed_parent = FIELD_FIXED; |
2186 | |
2187 | if(likely(field)) |
2188 | preset_field_type_size(tf, event_type, 0, 0, |
2189 | &fixed_root, &fixed_parent, |
2190 | field); |
2191 | |
2192 | } |
f104d082 |
2193 | #endif //0 |
2194 | |
2195 | |
2196 | /***************************************************************************** |
2197 | *Function name |
2198 | * get_alignment : Get the alignment needed for a field. |
2199 | *Input params |
f104d082 |
2200 | * field : field |
2201 | * |
2202 | * returns : The size on which it must be aligned. |
2203 | * |
2204 | ****************************************************************************/ |
743e50fd |
2205 | off_t get_alignment(LttField *field) |
f104d082 |
2206 | { |
2312de30 |
2207 | LttType *type = &field->field_type; |
f104d082 |
2208 | |
2209 | switch(type->type_class) { |
2210 | case LTT_INT_FIXED: |
2211 | case LTT_UINT_FIXED: |
2212 | case LTT_POINTER: |
2213 | case LTT_CHAR: |
2214 | case LTT_UCHAR: |
2215 | case LTT_SHORT: |
2216 | case LTT_USHORT: |
2217 | case LTT_INT: |
2218 | case LTT_UINT: |
2219 | case LTT_LONG: |
2220 | case LTT_ULONG: |
2221 | case LTT_SIZE_T: |
2222 | case LTT_SSIZE_T: |
2223 | case LTT_OFF_T: |
2224 | case LTT_FLOAT: |
2225 | case LTT_ENUM: |
2226 | /* Align offset on type size */ |
2227 | return field->field_size; |
2228 | break; |
2229 | case LTT_STRING: |
2230 | return 0; |
2231 | break; |
2232 | case LTT_ARRAY: |
2233 | g_assert(type->fields->len == 1); |
2234 | { |
2235 | LttField *child = &g_array_index(type->fields, LttField, 0); |
743e50fd |
2236 | return get_alignment(child); |
f104d082 |
2237 | } |
2238 | break; |
2239 | case LTT_SEQUENCE: |
2240 | g_assert(type->fields->len == 2); |
2241 | { |
2242 | off_t localign = 0; |
2243 | LttField *child = &g_array_index(type->fields, LttField, 0); |
2244 | |
743e50fd |
2245 | localign = max(localign, get_alignment(child)); |
f104d082 |
2246 | |
2247 | child = &g_array_index(type->fields, LttField, 1); |
743e50fd |
2248 | localign = max(localign, get_alignment(child)); |
f104d082 |
2249 | |
2250 | return localign; |
2251 | } |
2252 | break; |
2253 | case LTT_STRUCT: |
2254 | case LTT_UNION: |
2255 | { |
2256 | guint i; |
2257 | off_t localign = 0; |
2258 | |
2259 | for(i=0; i<type->fields->len; i++) { |
2260 | LttField *child = &g_array_index(type->fields, LttField, i); |
743e50fd |
2261 | localign = max(localign, get_alignment(child)); |
f104d082 |
2262 | } |
2263 | return localign; |
2264 | } |
2265 | break; |
2266 | case LTT_NONE: |
2267 | default: |
2268 | g_error("get_alignment : unknown type"); |
2269 | } |
2270 | |
2271 | } |
2272 | |
2273 | /***************************************************************************** |
2274 | *Function name |
2275 | * field_compute_static_size : Determine the size of fields known by their |
2276 | * sole definition. Unions, arrays and struct sizes might be known, but |
2277 | * the parser does not give that information. |
2278 | *Input params |
2279 | * tf : tracefile |
2280 | * field : field |
2281 | * |
2282 | ****************************************************************************/ |
2283 | |
743e50fd |
2284 | void field_compute_static_size(LttFacility *fac, LttField *field) |
f104d082 |
2285 | { |
2312de30 |
2286 | LttType *type = &field->field_type; |
f104d082 |
2287 | |
2288 | switch(type->type_class) { |
2289 | case LTT_INT_FIXED: |
2290 | case LTT_UINT_FIXED: |
2291 | case LTT_POINTER: |
2292 | case LTT_CHAR: |
2293 | case LTT_UCHAR: |
2294 | case LTT_SHORT: |
2295 | case LTT_USHORT: |
2296 | case LTT_INT: |
2297 | case LTT_UINT: |
2298 | case LTT_LONG: |
2299 | case LTT_ULONG: |
2300 | case LTT_SIZE_T: |
2301 | case LTT_SSIZE_T: |
2302 | case LTT_OFF_T: |
2303 | case LTT_FLOAT: |
2304 | case LTT_ENUM: |
2305 | case LTT_STRING: |
2306 | /* nothing to do */ |
2307 | break; |
2308 | case LTT_ARRAY: |
2309 | /* note this : array type size is the number of elements in the array, |
2310 | * while array field size of the length of the array in bytes */ |
2311 | g_assert(type->fields->len == 1); |
2312 | { |
2313 | LttField *child = &g_array_index(type->fields, LttField, 0); |
743e50fd |
2314 | field_compute_static_size(fac, child); |
f104d082 |
2315 | |
2316 | if(child->field_size != 0) { |
2317 | field->field_size = type->size * child->field_size; |
2318 | field->dynamic_offsets = g_array_sized_new(FALSE, TRUE, |
2319 | sizeof(off_t), type->size); |
2320 | } else { |
2321 | field->field_size = 0; |
2322 | } |
2323 | } |
2324 | break; |
2325 | case LTT_SEQUENCE: |
2326 | g_assert(type->fields->len == 2); |
2327 | { |
2312de30 |
2328 | off_t local_offset = 0; |
f104d082 |
2329 | LttField *child = &g_array_index(type->fields, LttField, 1); |
743e50fd |
2330 | field_compute_static_size(fac, child); |
f104d082 |
2331 | field->field_size = 0; |
2332 | type->size = 0; |
2333 | if(child->field_size != 0) { |
2334 | field->dynamic_offsets = g_array_sized_new(FALSE, TRUE, |
2335 | sizeof(off_t), SEQUENCE_AVG_ELEMENTS); |
2336 | } |
2337 | } |
2338 | break; |
2339 | case LTT_STRUCT: |
2340 | case LTT_UNION: |
2341 | { |
2342 | guint i; |
2343 | for(i=0;i<type->fields->len;i++) { |
2344 | LttField *child = &g_array_index(type->fields, LttField, i); |
743e50fd |
2345 | field_compute_static_size(fac, child); |
f104d082 |
2346 | if(child->field_size != 0) { |
743e50fd |
2347 | type->size += ltt_align(type->size, get_alignment(child), |
2348 | fac->alignment); |
f104d082 |
2349 | type->size += child->field_size; |
2350 | } else { |
2351 | /* As soon as we find a child with variable size, we have |
2352 | * a variable size */ |
2353 | type->size = 0; |
2354 | break; |
2355 | } |
2356 | } |
2357 | field->field_size = type->size; |
2358 | } |
2359 | break; |
2360 | default: |
2361 | g_error("field_static_size : unknown type"); |
2312de30 |
2362 | } |
f104d082 |
2363 | |
2364 | } |
2365 | |
2366 | |
2367 | |
2368 | /***************************************************************************** |
2369 | *Function name |
2370 | * precompute_fields_offsets : set the precomputable offset of the fields |
2371 | *Input params |
743e50fd |
2372 | * fac : facility |
f104d082 |
2373 | * field : the field |
2374 | * offset : pointer to the current offset, must be incremented |
2375 | * |
2376 | * return : 1 : found a variable length field, stop the processing. |
2377 | * 0 otherwise. |
2378 | ****************************************************************************/ |
2379 | |
2380 | |
743e50fd |
2381 | gint precompute_fields_offsets(LttFacility *fac, LttField *field, off_t *offset) |
f104d082 |
2382 | { |
2312de30 |
2383 | LttType *type = &field->field_type; |
f104d082 |
2384 | |
2385 | switch(type->type_class) { |
2386 | case LTT_INT_FIXED: |
2387 | case LTT_UINT_FIXED: |
2388 | case LTT_POINTER: |
2389 | case LTT_CHAR: |
2390 | case LTT_UCHAR: |
2391 | case LTT_SHORT: |
2392 | case LTT_USHORT: |
2393 | case LTT_INT: |
2394 | case LTT_UINT: |
2395 | case LTT_LONG: |
2396 | case LTT_ULONG: |
2397 | case LTT_SIZE_T: |
2398 | case LTT_SSIZE_T: |
2399 | case LTT_OFF_T: |
2400 | case LTT_FLOAT: |
2401 | case LTT_ENUM: |
743e50fd |
2402 | g_assert(field->field_size != 0); |
f104d082 |
2403 | /* Align offset on type size */ |
743e50fd |
2404 | *offset += ltt_align(*offset, get_alignment(field), |
2405 | fac->alignment); |
f104d082 |
2406 | /* remember offset */ |
2407 | field->offset_root = *offset; |
2408 | field->fixed_root = FIELD_FIXED; |
2409 | /* Increment offset */ |
2410 | *offset += field->field_size; |
2411 | return 0; |
2412 | break; |
2413 | case LTT_STRING: |
2414 | field->offset_root = *offset; |
2415 | field->fixed_root = FIELD_FIXED; |
2416 | return 1; |
2417 | break; |
2418 | case LTT_ARRAY: |
2419 | g_assert(type->fields->len == 1); |
2420 | { |
2421 | LttField *child = &g_array_index(type->fields, LttField, 0); |
2422 | |
743e50fd |
2423 | *offset += ltt_align(*offset, get_alignment(field), |
2424 | fac->alignment); |
f104d082 |
2425 | |
2426 | /* remember offset */ |
2427 | field->offset_root = *offset; |
2428 | field->array_offset = *offset; |
2429 | field->fixed_root = FIELD_FIXED; |
2430 | |
2431 | /* Let the child be variable */ |
2432 | //precompute_fields_offsets(tf, child, offset); |
2433 | |
2434 | if(field->field_size != 0) { |
2435 | /* Increment offset */ |
2436 | /* field_size is the array size in bytes */ |
2437 | *offset += field->field_size; |
2438 | return 0; |
2439 | } else { |
2440 | return 1; |
2441 | } |
2442 | } |
2443 | break; |
2444 | case LTT_SEQUENCE: |
2445 | g_assert(type->fields->len == 2); |
2446 | { |
2447 | LttField *child; |
2448 | guint ret; |
2449 | |
743e50fd |
2450 | *offset += ltt_align(*offset, get_alignment(field), |
2451 | fac->alignment); |
f104d082 |
2452 | |
2453 | /* remember offset */ |
2454 | field->offset_root = *offset; |
2455 | field->fixed_root = FIELD_FIXED; |
2456 | |
2457 | child = &g_array_index(type->fields, LttField, 0); |
743e50fd |
2458 | ret = precompute_fields_offsets(fac, child, offset); |
f104d082 |
2459 | g_assert(ret == 0); /* Seq len cannot have variable len */ |
2460 | |
2461 | child = &g_array_index(type->fields, LttField, 1); |
743e50fd |
2462 | *offset += ltt_align(*offset, get_alignment(child), |
2463 | fac->alignment); |
f104d082 |
2464 | field->array_offset = *offset; |
743e50fd |
2465 | /* Let the child be variable. */ |
2466 | //ret = precompute_fields_offsets(fac, child, offset); |
f104d082 |
2467 | |
2468 | /* Cannot precompute fields offsets of sequence members, and has |
2469 | * variable length. */ |
2470 | return 1; |
2471 | } |
2472 | break; |
2473 | case LTT_STRUCT: |
2474 | { |
2475 | LttField *child; |
2476 | guint i; |
2477 | gint ret=0; |
2478 | |
743e50fd |
2479 | *offset += ltt_align(*offset, get_alignment(field), |
2480 | fac->alignment); |
f104d082 |
2481 | /* remember offset */ |
2482 | field->offset_root = *offset; |
2483 | field->fixed_root = FIELD_FIXED; |
2484 | |
2485 | for(i=0; i< type->fields->len; i++) { |
2486 | child = &g_array_index(type->fields, LttField, i); |
743e50fd |
2487 | ret = precompute_fields_offsets(fac, child, offset); |
f104d082 |
2488 | |
2489 | if(ret) break; |
2490 | } |
2491 | return ret; |
2492 | } |
2493 | break; |
2494 | case LTT_UNION: |
2495 | { |
2496 | LttField *child; |
2497 | guint i; |
2498 | gint ret=0; |
2499 | |
743e50fd |
2500 | *offset += ltt_align(*offset, get_alignment(field), |
2501 | fac->alignment); |
f104d082 |
2502 | /* remember offset */ |
2503 | field->offset_root = *offset; |
2504 | field->fixed_root = FIELD_FIXED; |
2505 | |
2506 | for(i=0; i< type->fields->len; i++) { |
2507 | *offset = field->offset_root; |
2508 | child = &g_array_index(type->fields, LttField, i); |
743e50fd |
2509 | ret = precompute_fields_offsets(fac, child, offset); |
f104d082 |
2510 | |
2511 | if(ret) break; |
2512 | } |
2513 | *offset = field->offset_root + field->field_size; |
2514 | return ret; |
2515 | } |
2516 | |
2517 | break; |
2518 | case LTT_NONE: |
2519 | default: |
2520 | g_error("precompute_fields_offsets : unknown type"); |
2521 | return 1; |
2522 | } |
2523 | |
2524 | } |
2525 | |
2526 | |
2527 | /***************************************************************************** |
2528 | *Function name |
2529 | * precompute_offsets : set the precomputable offset of an event type |
2530 | *Input params |
2531 | * tf : tracefile |
2532 | * event : event type |
2533 | * |
2534 | ****************************************************************************/ |
743e50fd |
2535 | void precompute_offsets(LttFacility *fac, LttEventType *event) |
f104d082 |
2536 | { |
2537 | guint i; |
2538 | off_t offset = 0; |
2539 | gint ret; |
2540 | |
2541 | /* First, compute the size of fixed size fields. Will determine size for |
2542 | * arrays, struct and unions, which is not done by the parser */ |
2543 | for(i=0; i<event->fields->len; i++) { |
2544 | LttField *field = &g_array_index(event->fields, LttField, i); |
743e50fd |
2545 | field_compute_static_size(fac, field); |
f104d082 |
2546 | } |
2547 | |
2548 | /* Precompute all known offsets */ |
2549 | for(i=0; i<event->fields->len; i++) { |
2550 | LttField *field = &g_array_index(event->fields, LttField, i); |
743e50fd |
2551 | ret = precompute_fields_offsets(fac, field, &offset); |
f104d082 |
2552 | if(ret) break; |
2553 | } |
2554 | } |
2555 | |
2556 | |
e4eced0f |
2557 | |
bbf28e50 |
2558 | |
3aee1200 |
2559 | /***************************************************************************** |
2560 | *Function name |
2561 | * preset_field_type_size : set the fixed sizes of the field type |
2562 | *Input params |
2563 | * tf : tracefile |
2564 | * event_type : event type |
2565 | * offset_root : offset from the root |
2566 | * offset_parent : offset from the parent |
2567 | * fixed_root : Do we know a fixed offset to the root ? |
2568 | * fixed_parent : Do we know a fixed offset to the parent ? |
2569 | * field : field |
2570 | ****************************************************************************/ |
f104d082 |
2571 | |
2572 | |
2573 | |
2574 | // preset the fixed size offsets. Calculate them just like genevent-new : an |
2575 | // increment of a *to value that represents the offset from the start of the |
2576 | // event data. |
2577 | // The preset information is : offsets up to (and including) the first element |
2578 | // of variable size. All subsequent fields must be flagged "VARIABLE OFFSET". |
2579 | #if 0 |
3aee1200 |
2580 | void preset_field_type_size(LttTracefile *tf, LttEventType *event_type, |
2581 | off_t offset_root, off_t offset_parent, |
2582 | enum field_status *fixed_root, enum field_status *fixed_parent, |
2583 | LttField *field) |
2584 | { |
2585 | enum field_status local_fixed_root, local_fixed_parent; |
2586 | guint i; |
2587 | LttType *type; |
dfb73233 |
2588 | |
3aee1200 |
2589 | g_assert(field->fixed_root == FIELD_UNKNOWN); |
2590 | g_assert(field->fixed_parent == FIELD_UNKNOWN); |
2591 | g_assert(field->fixed_size == FIELD_UNKNOWN); |
dfb73233 |
2592 | |
3aee1200 |
2593 | type = field->field_type; |
2594 | |
2595 | field->fixed_root = *fixed_root; |
2596 | if(field->fixed_root == FIELD_FIXED) |
2597 | field->offset_root = offset_root; |
2598 | else |
2599 | field->offset_root = 0; |
2600 | |
2601 | field->fixed_parent = *fixed_parent; |
2602 | if(field->fixed_parent == FIELD_FIXED) |
2603 | field->offset_parent = offset_parent; |
2604 | else |
2605 | field->offset_parent = 0; |
2606 | |
2607 | size_t current_root_offset; |
2608 | size_t current_offset; |
2609 | enum field_status current_child_status, final_child_status; |
2610 | size_t max_size; |
2611 | |
2612 | switch(type->type_class) { |
2613 | case LTT_INT: |
2614 | case LTT_UINT: |
2615 | case LTT_FLOAT: |
2616 | case LTT_ENUM: |
2617 | field->field_size = ltt_type_size(tf->trace, type); |
2618 | field->fixed_size = FIELD_FIXED; |
2619 | break; |
2620 | case LTT_POINTER: |
2621 | field->field_size = (off_t)event_type->facility->pointer_size; |
2622 | field->fixed_size = FIELD_FIXED; |
2623 | break; |
2624 | case LTT_LONG: |
2625 | case LTT_ULONG: |
cb03932a |
2626 | field->field_size = (off_t)event_type->facility->long_size; |
3aee1200 |
2627 | field->fixed_size = FIELD_FIXED; |
2628 | break; |
2629 | case LTT_SIZE_T: |
2630 | case LTT_SSIZE_T: |
2631 | case LTT_OFF_T: |
2632 | field->field_size = (off_t)event_type->facility->size_t_size; |
2633 | field->fixed_size = FIELD_FIXED; |
2634 | break; |
2635 | case LTT_SEQUENCE: |
2636 | local_fixed_root = FIELD_VARIABLE; |
2637 | local_fixed_parent = FIELD_VARIABLE; |
2638 | preset_field_type_size(tf, event_type, |
2639 | 0, 0, |
2640 | &local_fixed_root, &local_fixed_parent, |
2641 | field->child[0]); |
2642 | field->fixed_size = FIELD_VARIABLE; |
2643 | field->field_size = 0; |
27304273 |
2644 | *fixed_root = FIELD_VARIABLE; |
2645 | *fixed_parent = FIELD_VARIABLE; |
3aee1200 |
2646 | break; |
2647 | case LTT_STRING: |
2648 | field->fixed_size = FIELD_VARIABLE; |
2649 | field->field_size = 0; |
27304273 |
2650 | *fixed_root = FIELD_VARIABLE; |
2651 | *fixed_parent = FIELD_VARIABLE; |
3aee1200 |
2652 | break; |
2653 | case LTT_ARRAY: |
2654 | local_fixed_root = FIELD_VARIABLE; |
2655 | local_fixed_parent = FIELD_VARIABLE; |
2656 | preset_field_type_size(tf, event_type, |
2657 | 0, 0, |
2658 | &local_fixed_root, &local_fixed_parent, |
2659 | field->child[0]); |
2660 | field->fixed_size = field->child[0]->fixed_size; |
27304273 |
2661 | if(field->fixed_size == FIELD_FIXED) { |
3aee1200 |
2662 | field->field_size = type->element_number * field->child[0]->field_size; |
27304273 |
2663 | } else { |
3aee1200 |
2664 | field->field_size = 0; |
27304273 |
2665 | *fixed_root = FIELD_VARIABLE; |
2666 | *fixed_parent = FIELD_VARIABLE; |
2667 | } |
3aee1200 |
2668 | break; |
2669 | case LTT_STRUCT: |
2670 | current_root_offset = field->offset_root; |
2671 | current_offset = 0; |
2672 | current_child_status = FIELD_FIXED; |
2673 | for(i=0;i<type->element_number;i++) { |
2674 | preset_field_type_size(tf, event_type, |
2675 | current_root_offset, current_offset, |
2676 | fixed_root, ¤t_child_status, |
2677 | field->child[i]); |
2678 | if(current_child_status == FIELD_FIXED) { |
2679 | current_root_offset += field->child[i]->field_size; |
2680 | current_offset += field->child[i]->field_size; |
2681 | } else { |
2682 | current_root_offset = 0; |
2683 | current_offset = 0; |
2684 | } |
2685 | } |
2686 | if(current_child_status != FIELD_FIXED) { |
2687 | *fixed_parent = current_child_status; |
2688 | field->field_size = 0; |
2689 | field->fixed_size = current_child_status; |
2690 | } else { |
2691 | field->field_size = current_offset; |
2692 | field->fixed_size = FIELD_FIXED; |
2693 | } |
2694 | break; |
2695 | case LTT_UNION: |
2696 | current_root_offset = field->offset_root; |
2697 | current_offset = 0; |
2698 | max_size = 0; |
2699 | final_child_status = FIELD_FIXED; |
2700 | for(i=0;i<type->element_number;i++) { |
2701 | enum field_status current_root_child_status = FIELD_FIXED; |
2702 | enum field_status current_child_status = FIELD_FIXED; |
2703 | preset_field_type_size(tf, event_type, |
2704 | current_root_offset, current_offset, |
2705 | ¤t_root_child_status, ¤t_child_status, |
2706 | field->child[i]); |
2707 | if(current_child_status != FIELD_FIXED) |
2708 | final_child_status = current_child_status; |
2709 | else |
2710 | max_size = max(max_size, field->child[i]->field_size); |
2711 | } |
2712 | if(final_child_status != FIELD_FIXED) { |
e2542235 |
2713 | g_error("LTTV does not support variable size fields in unions."); |
2714 | /* This will stop the application. */ |
3aee1200 |
2715 | *fixed_root = final_child_status; |
2716 | *fixed_parent = final_child_status; |
2717 | field->field_size = 0; |
2718 | field->fixed_size = current_child_status; |
2719 | } else { |
2720 | field->field_size = max_size; |
2721 | field->fixed_size = FIELD_FIXED; |
2722 | } |
2723 | break; |
dfb73233 |
2724 | } |
2725 | |
6cd62ccf |
2726 | } |
f104d082 |
2727 | #endif //0 |
3aee1200 |
2728 | |
77175651 |
2729 | /***************************************************************************** |
2730 | *Function name |
2731 | * check_fields_compatibility : Check for compatibility between two fields : |
2732 | * do they use the same inner structure ? |
2733 | *Input params |
2734 | * event_type1 : event type |
2735 | * event_type2 : event type |
2736 | * field1 : field |
2737 | * field2 : field |
2738 | *Returns : 0 if identical |
2739 | * 1 if not. |
2740 | ****************************************************************************/ |
f104d082 |
2741 | // this function checks for equality of field types. Therefore, it does not use |
2742 | // per se offsets. For instance, an aligned version of a structure is |
2743 | // compatible with an unaligned version of the same structure. |
2744 | gint check_fields_compatibility(LttEventType *event_type1, |
2745 | LttEventType *event_type2, |
2746 | LttField *field1, LttField *field2) |
2747 | { |
2748 | guint different = 0; |
2312de30 |
2749 | LttType *type1; |
2750 | LttType *type2; |
f104d082 |
2751 | |
2752 | if(field1 == NULL) { |
2753 | if(field2 == NULL) goto end; |
2754 | else { |
2755 | different = 1; |
2756 | goto end; |
2757 | } |
2758 | } else if(field2 == NULL) { |
2759 | different = 1; |
2760 | goto end; |
2761 | } |
2762 | |
2312de30 |
2763 | type1 = &field1->field_type; |
2764 | type2 = &field2->field_type; |
f104d082 |
2765 | |
2766 | if(type1->type_class != type2->type_class) { |
2767 | different = 1; |
2768 | goto end; |
2769 | } |
f0b795e0 |
2770 | if(type1->network != type2->network) { |
2771 | different = 1; |
2772 | goto end; |
2773 | } |
f104d082 |
2774 | |
2775 | switch(type1->type_class) { |
2776 | case LTT_INT_FIXED: |
2777 | case LTT_UINT_FIXED: |
2778 | case LTT_POINTER: |
2779 | case LTT_CHAR: |
2780 | case LTT_UCHAR: |
2781 | case LTT_SHORT: |
2782 | case LTT_USHORT: |
2783 | case LTT_INT: |
2784 | case LTT_UINT: |
2785 | case LTT_LONG: |
2786 | case LTT_ULONG: |
2787 | case LTT_SIZE_T: |
2788 | case LTT_SSIZE_T: |
2789 | case LTT_OFF_T: |
2790 | case LTT_FLOAT: |
2791 | case LTT_ENUM: |
2792 | if(field1->field_size != field2->field_size) |
2793 | different = 1; |
2794 | break; |
2795 | case LTT_STRING: |
2796 | break; |
2797 | case LTT_ARRAY: |
2798 | { |
2799 | LttField *child1 = &g_array_index(type1->fields, LttField, 0); |
2800 | LttField *child2 = &g_array_index(type2->fields, LttField, 0); |
2801 | |
2802 | if(type1->size != type2->size) |
2803 | different = 1; |
2804 | if(check_fields_compatibility(event_type1, event_type2, child1, child2)) |
2805 | different = 1; |
2806 | } |
2807 | break; |
2808 | case LTT_SEQUENCE: |
2809 | { |
2810 | LttField *child1 = &g_array_index(type1->fields, LttField, 1); |
2811 | LttField *child2 = &g_array_index(type2->fields, LttField, 1); |
2812 | |
2813 | if(check_fields_compatibility(event_type1, event_type2, child1, child2)) |
2814 | different = 1; |
2815 | } |
2816 | break; |
2817 | case LTT_STRUCT: |
2818 | case LTT_UNION: |
2819 | { |
2820 | LttField *child; |
2821 | guint i; |
2822 | |
2823 | if(type1->fields->len != type2->fields->len) { |
2824 | different = 1; |
2825 | goto end; |
2826 | } |
2827 | |
2828 | for(i=0; i< type1->fields->len; i++) { |
2312de30 |
2829 | LttField *child1; |
2830 | LttField *child2; |
f104d082 |
2831 | child1 = &g_array_index(type1->fields, LttField, i); |
2832 | child2 = &g_array_index(type2->fields, LttField, i); |
2833 | different = check_fields_compatibility(event_type1, |
2834 | event_type2, child1, child2); |
2835 | |
2836 | if(different) break; |
2837 | } |
2838 | } |
2839 | break; |
2840 | case LTT_NONE: |
2841 | default: |
2842 | g_error("precompute_fields_offsets : unknown type"); |
2843 | } |
2844 | |
2845 | end: |
2846 | return different; |
2847 | } |
2848 | |
2849 | |
2850 | #if 0 |
77175651 |
2851 | gint check_fields_compatibility(LttEventType *event_type1, |
2852 | LttEventType *event_type2, |
2853 | LttField *field1, LttField *field2) |
2854 | { |
2855 | guint different = 0; |
77175651 |
2856 | guint i; |
2857 | LttType *type1; |
2858 | LttType *type2; |
2859 | |
2860 | if(field1 == NULL) { |
2861 | if(field2 == NULL) goto end; |
2862 | else { |
2863 | different = 1; |
2864 | goto end; |
2865 | } |
2866 | } else if(field2 == NULL) { |
2867 | different = 1; |
2868 | goto end; |
2869 | } |
2870 | |
2871 | g_assert(field1->fixed_root != FIELD_UNKNOWN); |
2872 | g_assert(field2->fixed_root != FIELD_UNKNOWN); |
2873 | g_assert(field1->fixed_parent != FIELD_UNKNOWN); |
2874 | g_assert(field2->fixed_parent != FIELD_UNKNOWN); |
2875 | g_assert(field1->fixed_size != FIELD_UNKNOWN); |
2876 | g_assert(field2->fixed_size != FIELD_UNKNOWN); |
2877 | |
2878 | type1 = field1->field_type; |
2879 | type2 = field2->field_type; |
2880 | |
77175651 |
2881 | if(type1->type_class != type2->type_class) { |
2882 | different = 1; |
2883 | goto end; |
2884 | } |
2885 | if(type1->element_name != type2->element_name) { |
2886 | different = 1; |
2887 | goto end; |
2888 | } |
2889 | |
2890 | switch(type1->type_class) { |
2891 | case LTT_INT: |
2892 | case LTT_UINT: |
2893 | case LTT_FLOAT: |
2894 | case LTT_POINTER: |
2895 | case LTT_LONG: |
2896 | case LTT_ULONG: |
2897 | case LTT_SIZE_T: |
2898 | case LTT_SSIZE_T: |
2899 | case LTT_OFF_T: |
2900 | if(field1->field_size != field2->field_size) { |
2901 | different = 1; |
2902 | goto end; |
2903 | } |
2904 | break; |
2905 | case LTT_ENUM: |
2906 | if(type1->element_number != type2->element_number) { |
2907 | different = 1; |
2908 | goto end; |
2909 | } |
2910 | for(i=0;i<type1->element_number;i++) { |
2911 | if(type1->enum_strings[i] != type2->enum_strings[i]) { |
2912 | different = 1; |
2913 | goto end; |
2914 | } |
2915 | } |
2916 | break; |
2917 | case LTT_SEQUENCE: |
2918 | /* Two elements : size and child */ |
2919 | g_assert(type1->element_number != type2->element_number); |
2920 | for(i=0;i<type1->element_number;i++) { |
2921 | if(check_fields_compatibility(event_type1, event_type2, |
2922 | field1->child[0], field2->child[0])) { |
2923 | different = 1; |
2924 | goto end; |
2925 | } |
2926 | } |
2927 | break; |
2928 | case LTT_STRING: |
2929 | break; |
2930 | case LTT_ARRAY: |
2931 | if(field1->field_size != field2->field_size) { |
2932 | different = 1; |
2933 | goto end; |
2934 | } |
2935 | /* Two elements : size and child */ |
2936 | g_assert(type1->element_number != type2->element_number); |
2937 | for(i=0;i<type1->element_number;i++) { |
2938 | if(check_fields_compatibility(event_type1, event_type2, |
2939 | field1->child[0], field2->child[0])) { |
2940 | different = 1; |
2941 | goto end; |
2942 | } |
2943 | } |
2944 | break; |
2945 | case LTT_STRUCT: |
2946 | case LTT_UNION: |
2947 | if(type1->element_number != type2->element_number) { |
2948 | different = 1; |
2949 | break; |
2950 | } |
2951 | for(i=0;i<type1->element_number;i++) { |
2952 | if(check_fields_compatibility(event_type1, event_type2, |
2953 | field1->child[0], field2->child[0])) { |
2954 | different = 1; |
2955 | goto end; |
2956 | } |
2957 | } |
2958 | break; |
2959 | } |
2960 | end: |
2961 | return different; |
2962 | } |
3aee1200 |
2963 | #endif //0 |
6cd62ccf |
2964 | |
f104d082 |
2965 | |
6cd62ccf |
2966 | /***************************************************************************** |
2967 | *Function name |
eed2ef37 |
2968 | * ltt_get_int : get an integer number |
6cd62ccf |
2969 | *Input params |
3aee1200 |
2970 | * reverse_byte_order: must we reverse the byte order ? |
6cd62ccf |
2971 | * size : the size of the integer |
3aee1200 |
2972 | * ptr : the data pointer |
6cd62ccf |
2973 | *Return value |
cf74a6f1 |
2974 | * gint64 : a 64 bits integer |
6cd62ccf |
2975 | ****************************************************************************/ |
2976 | |
eed2ef37 |
2977 | gint64 ltt_get_int(gboolean reverse_byte_order, gint size, void *data) |
6cd62ccf |
2978 | { |
3aee1200 |
2979 | gint64 val; |
cf74a6f1 |
2980 | |
2981 | switch(size) { |
3aee1200 |
2982 | case 1: val = *((gint8*)data); break; |
2983 | case 2: val = ltt_get_int16(reverse_byte_order, data); break; |
2984 | case 4: val = ltt_get_int32(reverse_byte_order, data); break; |
2985 | case 8: val = ltt_get_int64(reverse_byte_order, data); break; |
2986 | default: val = ltt_get_int64(reverse_byte_order, data); |
2987 | g_critical("get_int : integer size %d unknown", size); |
cf74a6f1 |
2988 | break; |
2989 | } |
2990 | |
3aee1200 |
2991 | return val; |
6cd62ccf |
2992 | } |
3aee1200 |
2993 | |
6cd62ccf |
2994 | /***************************************************************************** |
2995 | *Function name |
eed2ef37 |
2996 | * ltt_get_uint : get an unsigned integer number |
6cd62ccf |
2997 | *Input params |
3aee1200 |
2998 | * reverse_byte_order: must we reverse the byte order ? |
2999 | * size : the size of the integer |
3000 | * ptr : the data pointer |
3001 | *Return value |
3002 | * guint64 : a 64 bits unsigned integer |
6cd62ccf |
3003 | ****************************************************************************/ |
3004 | |
eed2ef37 |
3005 | guint64 ltt_get_uint(gboolean reverse_byte_order, gint size, void *data) |
6cd62ccf |
3006 | { |
3aee1200 |
3007 | guint64 val; |
3008 | |
3009 | switch(size) { |
3010 | case 1: val = *((gint8*)data); break; |
3011 | case 2: val = ltt_get_uint16(reverse_byte_order, data); break; |
3012 | case 4: val = ltt_get_uint32(reverse_byte_order, data); break; |
3013 | case 8: val = ltt_get_uint64(reverse_byte_order, data); break; |
3014 | default: val = ltt_get_uint64(reverse_byte_order, data); |
3015 | g_critical("get_uint : unsigned integer size %d unknown", |
3016 | size); |
3017 | break; |
3018 | } |
3019 | |
3020 | return val; |
6cd62ccf |
3021 | } |
3aee1200 |
3022 | |
3023 | |
a5dcde2f |
3024 | /* get the node name of the system */ |
3025 | |
3026 | char * ltt_trace_system_description_node_name (LttSystemDescription * s) |
3027 | { |
3028 | return s->node_name; |
3029 | } |
3030 | |
3031 | |
3032 | /* get the domain name of the system */ |
3033 | |
3034 | char * ltt_trace_system_description_domain_name (LttSystemDescription * s) |
3035 | { |
3036 | return s->domain_name; |
3037 | } |
3038 | |
3039 | |
3040 | /* get the description of the system */ |
3041 | |
3042 | char * ltt_trace_system_description_description (LttSystemDescription * s) |
3043 | { |
3044 | return s->description; |
3045 | } |
3046 | |
3047 | |
bf33dd50 |
3048 | /* get the NTP corrected start time of the trace */ |
7bd563ec |
3049 | LttTime ltt_trace_start_time(LttTrace *t) |
a5dcde2f |
3050 | { |
7bd563ec |
3051 | return t->start_time; |
a5dcde2f |
3052 | } |
3053 | |
bf33dd50 |
3054 | /* get the monotonic start time of the trace */ |
3055 | LttTime ltt_trace_start_time_monotonic(LttTrace *t) |
3056 | { |
3057 | return t->start_time_from_tsc; |
3058 | } |
3059 | |
18206708 |
3060 | LttTracefile *ltt_tracefile_new() |
3061 | { |
3062 | return g_new(LttTracefile, 1); |
3063 | } |
3064 | |
3065 | void ltt_tracefile_destroy(LttTracefile *tf) |
3066 | { |
3067 | g_free(tf); |
3068 | } |
3069 | |
3070 | void ltt_tracefile_copy(LttTracefile *dest, const LttTracefile *src) |
3071 | { |
3072 | *dest = *src; |
3073 | } |
3074 | |
3aee1200 |
3075 | /* Before library loading... */ |
3076 | |
3077 | static void __attribute__((constructor)) init(void) |
3078 | { |
3079 | LTT_FACILITY_NAME_HEARTBEAT = g_quark_from_string("heartbeat"); |
3080 | LTT_EVENT_NAME_HEARTBEAT = g_quark_from_string("heartbeat"); |
3081 | |
3865ea09 |
3082 | LTT_TRACEFILE_NAME_FACILITIES = g_quark_from_string("/control/facilities"); |
3aee1200 |
3083 | } |
3084 | |