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> |
dd3a6d39 |
37 | #include <string.h> |
6cd62ccf |
38 | |
ef35d837 |
39 | // For realpath |
40 | #include <limits.h> |
41 | #include <stdlib.h> |
42 | |
43 | |
a5dcde2f |
44 | #include <ltt/ltt.h> |
45 | #include "ltt-private.h" |
963b5f2d |
46 | #include <ltt/trace.h> |
c02ea99f |
47 | #include <ltt/event.h> |
1a2ceb63 |
48 | #include <ltt/ltt-types.h> |
bb38a290 |
49 | #include <ltt/marker.h> |
3aee1200 |
50 | |
51 | /* Facility names used in this file */ |
52 | |
53 | GQuark LTT_FACILITY_NAME_HEARTBEAT, |
d1bb700c |
54 | LTT_EVENT_NAME_HEARTBEAT, |
55 | LTT_EVENT_NAME_HEARTBEAT_FULL; |
3aee1200 |
56 | GQuark LTT_TRACEFILE_NAME_FACILITIES; |
57 | |
86005ded |
58 | #ifndef g_open |
59 | #define g_open open |
60 | #endif |
61 | |
62 | |
51b5991e |
63 | #define __UNUSED__ __attribute__((__unused__)) |
6cd62ccf |
64 | |
a1062ddd |
65 | #define g_info(format...) g_log (G_LOG_DOMAIN, G_LOG_LEVEL_INFO, format) |
3aee1200 |
66 | |
67 | #ifndef g_debug |
a1062ddd |
68 | #define g_debug(format...) g_log (G_LOG_DOMAIN, G_LOG_LEVEL_DEBUG, format) |
3aee1200 |
69 | #endif |
a1062ddd |
70 | |
45e14832 |
71 | #define g_close close |
8959a0c8 |
72 | |
b77d1b57 |
73 | /* Those macros must be called from within a function where page_size is a known |
74 | * variable */ |
75 | #define PAGE_MASK (~(page_size-1)) |
76 | #define PAGE_ALIGN(addr) (((addr)+page_size-1)&PAGE_MASK) |
77 | |
9c731a50 |
78 | LttTrace *father_trace = NULL; |
79 | |
6cd62ccf |
80 | /* set the offset of the fields belonging to the event, |
81 | need the information of the archecture */ |
f104d082 |
82 | //void set_fields_offsets(LttTracefile *tf, LttEventType *event_type); |
eed2ef37 |
83 | //size_t get_fields_offsets(LttTracefile *tf, LttEventType *event_type, void *data); |
6cd62ccf |
84 | |
3aee1200 |
85 | /* get the size of the field type according to |
86 | * The facility size information. */ |
f104d082 |
87 | #if 0 |
3aee1200 |
88 | static inline void preset_field_type_size(LttTracefile *tf, |
89 | LttEventType *event_type, |
90 | off_t offset_root, off_t offset_parent, |
91 | enum field_status *fixed_root, enum field_status *fixed_parent, |
92 | LttField *field); |
f104d082 |
93 | #endif //0 |
6cd62ccf |
94 | |
3aee1200 |
95 | /* map a fixed size or a block information from the file (fd) */ |
96 | static gint map_block(LttTracefile * tf, guint block_num); |
97 | |
98 | /* calculate nsec per cycles for current block */ |
791dffa6 |
99 | #if 0 |
100 | static guint32 calc_nsecs_per_cycle(LttTracefile * t); |
101 | static guint64 cycles_2_ns(LttTracefile *tf, guint64 cycles); |
102 | #endif //0 |
6cd62ccf |
103 | |
3aee1200 |
104 | /* go to the next event */ |
105 | static int ltt_seek_next_event(LttTracefile *tf); |
6cd62ccf |
106 | |
3c165eaf |
107 | static int open_tracefiles(LttTrace *trace, gchar *root_path, |
108 | gchar *relative_path); |
109 | static int ltt_process_facility_tracefile(LttTracefile *tf); |
110 | static void ltt_tracefile_time_span_get(LttTracefile *tf, |
111 | LttTime *start, LttTime *end); |
112 | static void group_time_span_get(GQuark name, gpointer data, gpointer user_data); |
113 | static gint map_block(LttTracefile * tf, guint block_num); |
3c165eaf |
114 | static void ltt_update_event_size(LttTracefile *tf); |
91f8d488 |
115 | |
116 | /* Enable event debugging */ |
117 | static int a_event_debug = 0; |
118 | |
119 | void ltt_event_debug(int state) |
120 | { |
121 | a_event_debug = state; |
122 | } |
123 | |
b7576a11 |
124 | /* trace can be NULL |
125 | * |
126 | * Return value : 0 success, 1 bad tracefile |
127 | */ |
8655430b |
128 | static int parse_trace_header(void *header, LttTracefile *tf, LttTrace *t) |
b7576a11 |
129 | { |
130 | guint32 *magic_number = (guint32*)header; |
131 | struct ltt_trace_header_any *any = (struct ltt_trace_header_any *)header; |
132 | |
133 | if(*magic_number == LTT_MAGIC_NUMBER) |
134 | tf->reverse_bo = 0; |
135 | else if(*magic_number == LTT_REV_MAGIC_NUMBER) |
136 | tf->reverse_bo = 1; |
137 | else /* invalid magic number, bad tracefile ! */ |
138 | return 1; |
139 | |
140 | /* Get float byte order : might be different from int byte order |
141 | * (or is set to 0 if the trace has no float (kernel trace)) */ |
142 | tf->float_word_order = any->float_word_order; |
256a5b3a |
143 | tf->alignment = any->alignment; |
90440c06 |
144 | tf->has_heartbeat = any->has_heartbeat; |
b7576a11 |
145 | |
146 | if(t) { |
147 | t->arch_type = ltt_get_uint32(LTT_GET_BO(tf), |
148 | &any->arch_type); |
149 | t->arch_variant = ltt_get_uint32(LTT_GET_BO(tf), |
150 | &any->arch_variant); |
151 | t->arch_size = any->arch_size; |
152 | t->ltt_major_version = any->major_version; |
153 | t->ltt_minor_version = any->minor_version; |
154 | t->flight_recorder = any->flight_recorder; |
3c165eaf |
155 | // t->compact_facilities = NULL; |
b7576a11 |
156 | } |
157 | |
b7576a11 |
158 | switch(any->major_version) { |
159 | |
160 | case 0: |
3c165eaf |
161 | g_warning("Unsupported trace version : %hhu.%hhu", |
162 | any->major_version, any->minor_version); |
163 | return 1; |
164 | break; |
165 | case 1: |
b7576a11 |
166 | switch(any->minor_version) { |
3c165eaf |
167 | case 0: |
b7576a11 |
168 | { |
3c165eaf |
169 | struct ltt_trace_header_1_0 *vheader = |
170 | (struct ltt_trace_header_1_0 *)header; |
823820eb |
171 | tf->buffer_header_size = |
172 | sizeof(struct ltt_block_start_header) |
3c165eaf |
173 | + sizeof(struct ltt_trace_header_1_0); |
62e4e7bf |
174 | tf->tsc_lsb_truncate = vheader->tsc_lsb_truncate; |
175 | tf->tscbits = vheader->tscbits; |
176 | tf->tsc_msb_cutoff = 32 - tf->tsc_lsb_truncate - tf->tscbits; |
08a986f1 |
177 | tf->compact_event_bits = 32 - vheader->compact_data_shift; |
dd3a6d39 |
178 | tf->tsc_mask = ((1ULL << (tf->tscbits))-1); |
179 | tf->tsc_mask = tf->tsc_mask << tf->tsc_lsb_truncate; |
62e4e7bf |
180 | tf->tsc_mask_next_bit = (1ULL<<(tf->tscbits)); |
181 | tf->tsc_mask_next_bit = tf->tsc_mask_next_bit << tf->tsc_lsb_truncate; |
e939e5b2 |
182 | if(t) { |
183 | t->start_freq = ltt_get_uint64(LTT_GET_BO(tf), |
184 | &vheader->start_freq); |
a3999b49 |
185 | t->freq_scale = ltt_get_uint32(LTT_GET_BO(tf), |
186 | &vheader->freq_scale); |
9c731a50 |
187 | if(father_trace) { |
188 | t->start_freq = father_trace->start_freq; |
189 | t->freq_scale = father_trace->freq_scale; |
190 | } |
191 | else { |
192 | father_trace = t; |
193 | } |
e939e5b2 |
194 | t->start_tsc = ltt_get_uint64(LTT_GET_BO(tf), |
195 | &vheader->start_tsc); |
196 | t->start_monotonic = ltt_get_uint64(LTT_GET_BO(tf), |
197 | &vheader->start_monotonic); |
198 | t->start_time.tv_sec = ltt_get_uint64(LTT_GET_BO(tf), |
199 | &vheader->start_time_sec); |
200 | t->start_time.tv_nsec = ltt_get_uint64(LTT_GET_BO(tf), |
201 | &vheader->start_time_usec); |
202 | t->start_time.tv_nsec *= 1000; /* microsec to nanosec */ |
203 | |
204 | t->start_time_from_tsc = ltt_time_from_uint64( |
c7f86478 |
205 | (double)t->start_tsc |
206 | * (1000000000.0 / tf->trace->freq_scale) |
62e4e7bf |
207 | / (double)t->start_freq); |
e939e5b2 |
208 | } |
209 | } |
210 | break; |
b7576a11 |
211 | default: |
986e2a7c |
212 | g_warning("Unsupported trace version : %hhu.%hhu", |
3c165eaf |
213 | any->major_version, any->minor_version); |
b7576a11 |
214 | return 1; |
215 | } |
216 | break; |
b7576a11 |
217 | default: |
218 | g_warning("Unsupported trace version : %hhu.%hhu", |
219 | any->major_version, any->minor_version); |
220 | return 1; |
221 | } |
222 | |
223 | |
224 | return 0; |
225 | } |
226 | |
227 | |
228 | |
6cd62ccf |
229 | /***************************************************************************** |
230 | *Function name |
963b5f2d |
231 | * ltt_tracefile_open : open a trace file, construct a LttTracefile |
6cd62ccf |
232 | *Input params |
963b5f2d |
233 | * t : the trace containing the tracefile |
234 | * fileName : path name of the trace file |
3aee1200 |
235 | * tf : the tracefile structure |
6cd62ccf |
236 | *Return value |
3aee1200 |
237 | * : 0 for success, -1 otherwise. |
6cd62ccf |
238 | ****************************************************************************/ |
239 | |
8655430b |
240 | static gint ltt_tracefile_open(LttTrace *t, gchar * fileName, LttTracefile *tf) |
6cd62ccf |
241 | { |
963b5f2d |
242 | struct stat lTDFStat; /* Trace data file status */ |
3aee1200 |
243 | struct ltt_block_start_header *header; |
b77d1b57 |
244 | int page_size = getpagesize(); |
6cd62ccf |
245 | |
246 | //open the file |
d3d34f49 |
247 | tf->long_name = g_quark_from_string(fileName); |
963b5f2d |
248 | tf->trace = t; |
3865ea09 |
249 | tf->fd = open(fileName, O_RDONLY); |
6cd62ccf |
250 | if(tf->fd < 0){ |
2a74fbf4 |
251 | g_warning("Unable to open input data file %s\n", fileName); |
3aee1200 |
252 | goto end; |
6cd62ccf |
253 | } |
254 | |
255 | // Get the file's status |
256 | if(fstat(tf->fd, &lTDFStat) < 0){ |
2a74fbf4 |
257 | g_warning("Unable to get the status of the input data file %s\n", fileName); |
3aee1200 |
258 | goto close_file; |
6cd62ccf |
259 | } |
260 | |
261 | // Is the file large enough to contain a trace |
823820eb |
262 | if(lTDFStat.st_size < |
9ea7b94b |
263 | (off_t)(sizeof(struct ltt_block_start_header) |
264 | + sizeof(struct ltt_trace_header_any))){ |
8710c6c7 |
265 | g_print("The input data file %s does not contain a trace\n", fileName); |
3aee1200 |
266 | goto close_file; |
267 | } |
268 | |
269 | /* Temporarily map the buffer start header to get trace information */ |
270 | /* Multiple of pages aligned head */ |
b77d1b57 |
271 | tf->buffer.head = mmap(0, |
9ea7b94b |
272 | PAGE_ALIGN(sizeof(struct ltt_block_start_header) |
273 | + sizeof(struct ltt_trace_header_any)), PROT_READ, |
3aee1200 |
274 | MAP_PRIVATE, tf->fd, 0); |
3865ea09 |
275 | if(tf->buffer.head == MAP_FAILED) { |
3aee1200 |
276 | perror("Error in allocating memory for buffer of tracefile"); |
277 | goto close_file; |
6cd62ccf |
278 | } |
f64fedd7 |
279 | g_assert( ( (gulong)tf->buffer.head&(8-1) ) == 0); // make sure it's aligned. |
3aee1200 |
280 | |
281 | header = (struct ltt_block_start_header*)tf->buffer.head; |
6cd62ccf |
282 | |
51551c6f |
283 | if(parse_trace_header(header->trace, tf, NULL)) { |
284 | g_warning("parse_trace_header error"); |
285 | goto unmap_file; |
286 | } |
3aee1200 |
287 | |
6cd62ccf |
288 | //store the size of the file |
289 | tf->file_size = lTDFStat.st_size; |
f628823c |
290 | tf->buf_size = ltt_get_uint32(LTT_GET_BO(tf), &header->buf_size); |
291 | tf->num_blocks = tf->file_size / tf->buf_size; |
292 | |
293 | if(munmap(tf->buffer.head, |
9ea7b94b |
294 | PAGE_ALIGN(sizeof(struct ltt_block_start_header) |
295 | + sizeof(struct ltt_trace_header_any)))) { |
f628823c |
296 | g_warning("unmap size : %u\n", |
9ea7b94b |
297 | PAGE_ALIGN(sizeof(struct ltt_block_start_header) |
298 | + sizeof(struct ltt_trace_header_any))); |
f628823c |
299 | perror("munmap error"); |
300 | g_assert(0); |
301 | } |
3aee1200 |
302 | tf->buffer.head = NULL; |
6cd62ccf |
303 | |
963b5f2d |
304 | //read the first block |
3aee1200 |
305 | if(map_block(tf,0)) { |
306 | perror("Cannot map block for tracefile"); |
307 | goto close_file; |
308 | } |
309 | |
310 | return 0; |
6cd62ccf |
311 | |
3aee1200 |
312 | /* Error */ |
313 | unmap_file: |
f628823c |
314 | if(munmap(tf->buffer.head, |
9ea7b94b |
315 | PAGE_ALIGN(sizeof(struct ltt_block_start_header) |
316 | + sizeof(struct ltt_trace_header_any)))) { |
f628823c |
317 | g_warning("unmap size : %u\n", |
9ea7b94b |
318 | PAGE_ALIGN(sizeof(struct ltt_block_start_header) |
319 | + sizeof(struct ltt_trace_header_any))); |
f628823c |
320 | perror("munmap error"); |
321 | g_assert(0); |
322 | } |
3aee1200 |
323 | close_file: |
3865ea09 |
324 | close(tf->fd); |
3aee1200 |
325 | end: |
326 | return -1; |
6cd62ccf |
327 | } |
328 | |
3aee1200 |
329 | #if 0 |
6cd62ccf |
330 | /***************************************************************************** |
963b5f2d |
331 | *Open control and per cpu tracefiles |
6cd62ccf |
332 | ****************************************************************************/ |
333 | |
45e14832 |
334 | void ltt_tracefile_open_cpu(LttTrace *t, gchar * tracefile_name) |
6cd62ccf |
335 | { |
963b5f2d |
336 | LttTracefile * tf; |
337 | tf = ltt_tracefile_open(t,tracefile_name); |
4a6c8e36 |
338 | if(!tf) return; |
963b5f2d |
339 | t->per_cpu_tracefile_number++; |
340 | g_ptr_array_add(t->per_cpu_tracefiles, tf); |
6cd62ccf |
341 | } |
342 | |
45e14832 |
343 | gint ltt_tracefile_open_control(LttTrace *t, gchar * control_name) |
6cd62ccf |
344 | { |
963b5f2d |
345 | LttTracefile * tf; |
c02ea99f |
346 | LttEvent ev; |
963b5f2d |
347 | LttFacility * f; |
963b5f2d |
348 | void * pos; |
349 | FacilityLoad fLoad; |
8d1e6362 |
350 | unsigned int i; |
963b5f2d |
351 | |
352 | tf = ltt_tracefile_open(t,control_name); |
2a74fbf4 |
353 | if(!tf) { |
354 | g_warning("ltt_tracefile_open_control : bad file descriptor"); |
355 | return -1; |
356 | } |
963b5f2d |
357 | t->control_tracefile_number++; |
358 | g_ptr_array_add(t->control_tracefiles,tf); |
359 | |
360 | //parse facilities tracefile to get base_id |
542ceddd |
361 | if(strcmp(&control_name[strlen(control_name)-10],"facilities") ==0){ |
963b5f2d |
362 | while(1){ |
c02ea99f |
363 | if(!ltt_tracefile_read(tf,&ev)) return 0; // end of file |
40331ba8 |
364 | |
c02ea99f |
365 | if(ev.event_id == TRACE_FACILITY_LOAD){ |
366 | pos = ev.data; |
45e14832 |
367 | fLoad.name = (gchar*)pos; |
47a166fc |
368 | fLoad.checksum = *(LttChecksum*)(pos + strlen(fLoad.name)); |
cbd41522 |
369 | fLoad.base_code = *(guint32 *)(pos + strlen(fLoad.name) + sizeof(LttChecksum)); |
963b5f2d |
370 | |
371 | for(i=0;i<t->facility_number;i++){ |
372 | f = (LttFacility*)g_ptr_array_index(t->facilities,i); |
373 | if(strcmp(f->name,fLoad.name)==0 && fLoad.checksum==f->checksum){ |
374 | f->base_id = fLoad.base_code; |
375 | break; |
376 | } |
377 | } |
2a74fbf4 |
378 | if(i==t->facility_number) { |
8d1e6362 |
379 | g_warning("Facility: %s, checksum: %u is not found", |
380 | fLoad.name,(unsigned int)fLoad.checksum); |
2a74fbf4 |
381 | return -1; |
382 | } |
c02ea99f |
383 | }else if(ev.event_id == TRACE_BLOCK_START){ |
40331ba8 |
384 | continue; |
c02ea99f |
385 | }else if(ev.event_id == TRACE_BLOCK_END){ |
40331ba8 |
386 | break; |
2a74fbf4 |
387 | }else { |
8d1e6362 |
388 | g_warning("Not valid facilities trace file"); |
2a74fbf4 |
389 | return -1; |
390 | } |
963b5f2d |
391 | } |
392 | } |
2a74fbf4 |
393 | return 0; |
6cd62ccf |
394 | } |
3aee1200 |
395 | #endif //0 |
6cd62ccf |
396 | |
397 | /***************************************************************************** |
398 | *Function name |
963b5f2d |
399 | * ltt_tracefile_close: close a trace file, |
6cd62ccf |
400 | *Input params |
963b5f2d |
401 | * t : tracefile which will be closed |
6cd62ccf |
402 | ****************************************************************************/ |
403 | |
8655430b |
404 | static void ltt_tracefile_close(LttTracefile *t) |
6cd62ccf |
405 | { |
f628823c |
406 | int page_size = getpagesize(); |
407 | |
3aee1200 |
408 | if(t->buffer.head != NULL) |
f628823c |
409 | if(munmap(t->buffer.head, PAGE_ALIGN(t->buf_size))) { |
410 | g_warning("unmap size : %u\n", |
411 | PAGE_ALIGN(t->buf_size)); |
412 | perror("munmap error"); |
413 | g_assert(0); |
414 | } |
415 | |
3865ea09 |
416 | close(t->fd); |
963b5f2d |
417 | } |
6cd62ccf |
418 | |
6cd62ccf |
419 | |
963b5f2d |
420 | /***************************************************************************** |
421 | *Get system information |
422 | ****************************************************************************/ |
3aee1200 |
423 | #if 0 |
45e14832 |
424 | gint getSystemInfo(LttSystemDescription* des, gchar * pathname) |
963b5f2d |
425 | { |
45e14832 |
426 | int fd; |
427 | GIOChannel *iochan; |
428 | gchar *buf = NULL; |
429 | gsize length; |
43da6a59 |
430 | |
431 | GMarkupParseContext * context; |
2a74fbf4 |
432 | GError * error = NULL; |
43da6a59 |
433 | GMarkupParser markup_parser = |
434 | { |
435 | parser_start_element, |
8d1e6362 |
436 | NULL, |
43da6a59 |
437 | parser_characters, |
438 | NULL, /* passthrough */ |
439 | NULL /* error */ |
440 | }; |
963b5f2d |
441 | |
45e14832 |
442 | fd = g_open(pathname, O_RDONLY, 0); |
443 | if(fd == -1){ |
2a74fbf4 |
444 | g_warning("Can not open file : %s\n", pathname); |
445 | return -1; |
6cd62ccf |
446 | } |
963b5f2d |
447 | |
45e14832 |
448 | iochan = g_io_channel_unix_new(fd); |
449 | |
43da6a59 |
450 | context = g_markup_parse_context_new(&markup_parser, 0, des,NULL); |
6cd62ccf |
451 | |
45e14832 |
452 | //while(fgets(buf,DIR_NAME_SIZE, fp) != NULL){ |
453 | while(g_io_channel_read_line(iochan, &buf, &length, NULL, &error) |
454 | != G_IO_STATUS_EOF) { |
455 | |
456 | if(error != NULL) { |
457 | g_warning("Can not read xml file: \n%s\n", error->message); |
458 | g_error_free(error); |
459 | } |
460 | if(!g_markup_parse_context_parse(context, buf, length, &error)){ |
2a74fbf4 |
461 | if(error != NULL) { |
462 | g_warning("Can not parse xml file: \n%s\n", error->message); |
463 | g_error_free(error); |
464 | } |
465 | g_markup_parse_context_free(context); |
45e14832 |
466 | |
467 | g_io_channel_shutdown(iochan, FALSE, &error); /* No flush */ |
468 | if(error != NULL) { |
469 | g_warning("Can not close file: \n%s\n", error->message); |
470 | g_error_free(error); |
471 | } |
472 | |
473 | close(fd); |
2a74fbf4 |
474 | return -1; |
43da6a59 |
475 | } |
963b5f2d |
476 | } |
2a74fbf4 |
477 | g_markup_parse_context_free(context); |
45e14832 |
478 | |
479 | g_io_channel_shutdown(iochan, FALSE, &error); /* No flush */ |
480 | if(error != NULL) { |
481 | g_warning("Can not close file: \n%s\n", error->message); |
482 | g_error_free(error); |
483 | } |
484 | |
485 | g_close(fd); |
486 | |
487 | g_free(buf); |
2a74fbf4 |
488 | return 0; |
6cd62ccf |
489 | } |
3aee1200 |
490 | #endif //0 |
6cd62ccf |
491 | |
492 | /***************************************************************************** |
963b5f2d |
493 | *The following functions get facility/tracefile information |
6cd62ccf |
494 | ****************************************************************************/ |
3aee1200 |
495 | #if 0 |
45e14832 |
496 | gint getFacilityInfo(LttTrace *t, gchar* eventdefs) |
6cd62ccf |
497 | { |
45e14832 |
498 | GDir * dir; |
499 | const gchar * name; |
8d1e6362 |
500 | unsigned int i,j; |
963b5f2d |
501 | LttFacility * f; |
502 | LttEventType * et; |
45e14832 |
503 | gchar fullname[DIR_NAME_SIZE]; |
504 | GError * error = NULL; |
505 | |
506 | dir = g_dir_open(eventdefs, 0, &error); |
963b5f2d |
507 | |
45e14832 |
508 | if(error != NULL) { |
509 | g_warning("Can not open directory: %s, %s\n", eventdefs, error->message); |
510 | g_error_free(error); |
2a74fbf4 |
511 | return -1; |
512 | } |
963b5f2d |
513 | |
45e14832 |
514 | while((name = g_dir_read_name(dir)) != NULL){ |
515 | if(!g_pattern_match_simple("*.xml", name)) continue; |
516 | strcpy(fullname,eventdefs); |
517 | strcat(fullname,name); |
518 | ltt_facility_open(t,fullname); |
519 | } |
520 | g_dir_close(dir); |
963b5f2d |
521 | |
963b5f2d |
522 | for(j=0;j<t->facility_number;j++){ |
8710c6c7 |
523 | f = (LttFacility*)g_ptr_array_index(t->facilities, j); |
963b5f2d |
524 | for(i=0; i<f->event_number; i++){ |
525 | et = f->events[i]; |
40331ba8 |
526 | setFieldsOffset(NULL, et, NULL, t); |
963b5f2d |
527 | } |
528 | } |
2a74fbf4 |
529 | return 0; |
963b5f2d |
530 | } |
3aee1200 |
531 | #endif //0 |
6cd62ccf |
532 | |
963b5f2d |
533 | /***************************************************************************** |
534 | *A trace is specified as a pathname to the directory containing all the |
535 | *associated data (control tracefiles, per cpu tracefiles, event |
536 | *descriptions...). |
537 | * |
538 | *When a trace is closed, all the associated facilities, types and fields |
539 | *are released as well. |
8d1e6362 |
540 | */ |
541 | |
542 | |
543 | /**************************************************************************** |
544 | * get_absolute_pathname |
803229fa |
545 | * |
8d1e6362 |
546 | * return the unique pathname in the system |
547 | * |
ef35d837 |
548 | * MD : Fixed this function so it uses realpath, dealing well with |
549 | * forgotten cases (.. were not used correctly before). |
803229fa |
550 | * |
963b5f2d |
551 | ****************************************************************************/ |
45e14832 |
552 | void get_absolute_pathname(const gchar *pathname, gchar * abs_pathname) |
9f797243 |
553 | { |
9f797243 |
554 | abs_pathname[0] = '\0'; |
803229fa |
555 | |
ef35d837 |
556 | if ( realpath (pathname, abs_pathname) != NULL) |
557 | return; |
558 | else |
559 | { |
8d1e6362 |
560 | /* error, return the original path unmodified */ |
ef35d837 |
561 | strcpy(abs_pathname, pathname); |
9f797243 |
562 | return; |
563 | } |
ef35d837 |
564 | return; |
9f797243 |
565 | } |
566 | |
3aee1200 |
567 | /* Search for something like : .*_.* |
568 | * |
569 | * The left side is the name, the right side is the number. |
570 | */ |
571 | |
8655430b |
572 | static int get_tracefile_name_number(gchar *raw_name, |
3aee1200 |
573 | GQuark *name, |
ae3d0f50 |
574 | guint *num, |
f64fedd7 |
575 | gulong *tid, |
576 | gulong *pgid, |
62e4e7bf |
577 | guint64 *creation) |
6cd62ccf |
578 | { |
3aee1200 |
579 | guint raw_name_len = strlen(raw_name); |
580 | gchar char_name[PATH_MAX]; |
3aee1200 |
581 | int i; |
582 | int underscore_pos; |
583 | long int cpu_num; |
584 | gchar *endptr; |
62e4e7bf |
585 | gchar *tmpptr; |
3aee1200 |
586 | |
587 | for(i=raw_name_len-1;i>=0;i--) { |
588 | if(raw_name[i] == '_') break; |
589 | } |
ae3d0f50 |
590 | if(i==-1) { /* Either not found or name length is 0 */ |
62e4e7bf |
591 | /* This is a userspace tracefile */ |
592 | strncpy(char_name, raw_name, raw_name_len); |
593 | char_name[raw_name_len] = '\0'; |
594 | *name = g_quark_from_string(char_name); |
595 | *num = 0; /* unknown cpu */ |
596 | for(i=0;i<raw_name_len;i++) { |
597 | if(raw_name[i] == '/') { |
598 | break; |
599 | } |
600 | } |
601 | i++; |
602 | for(;i<raw_name_len;i++) { |
603 | if(raw_name[i] == '/') { |
604 | break; |
605 | } |
606 | } |
607 | i++; |
608 | for(;i<raw_name_len;i++) { |
609 | if(raw_name[i] == '-') { |
610 | break; |
611 | } |
612 | } |
613 | if(i == raw_name_len) return -1; |
614 | i++; |
615 | tmpptr = &raw_name[i]; |
616 | for(;i<raw_name_len;i++) { |
617 | if(raw_name[i] == '.') { |
618 | raw_name[i] = ' '; |
619 | break; |
620 | } |
621 | } |
622 | *tid = strtoul(tmpptr, &endptr, 10); |
623 | if(endptr == tmpptr) |
624 | return -1; /* No digit */ |
625 | if(*tid == ULONG_MAX) |
626 | return -1; /* underflow / overflow */ |
627 | i++; |
628 | tmpptr = &raw_name[i]; |
629 | for(;i<raw_name_len;i++) { |
630 | if(raw_name[i] == '.') { |
631 | raw_name[i] = ' '; |
632 | break; |
633 | } |
634 | } |
635 | *pgid = strtoul(tmpptr, &endptr, 10); |
636 | if(endptr == tmpptr) |
637 | return -1; /* No digit */ |
638 | if(*pgid == ULONG_MAX) |
639 | return -1; /* underflow / overflow */ |
640 | i++; |
641 | tmpptr = &raw_name[i]; |
642 | *creation = strtoull(tmpptr, &endptr, 10); |
643 | if(endptr == tmpptr) |
644 | return -1; /* No digit */ |
645 | if(*creation == G_MAXUINT64) |
646 | return -1; /* underflow / overflow */ |
647 | } else { |
648 | underscore_pos = i; |
649 | |
650 | cpu_num = strtol(raw_name+underscore_pos+1, &endptr, 10); |
651 | |
652 | if(endptr == raw_name+underscore_pos+1) |
653 | return -1; /* No digit */ |
654 | if(cpu_num == LONG_MIN || cpu_num == LONG_MAX) |
655 | return -1; /* underflow / overflow */ |
656 | |
657 | strncpy(char_name, raw_name, underscore_pos); |
658 | char_name[underscore_pos] = '\0'; |
659 | |
660 | *name = g_quark_from_string(char_name); |
661 | *num = cpu_num; |
662 | } |
69bd59ed |
663 | |
b333a76b |
664 | |
3aee1200 |
665 | return 0; |
666 | } |
963b5f2d |
667 | |
3aee1200 |
668 | |
3865ea09 |
669 | GData **ltt_trace_get_tracefiles_groups(LttTrace *trace) |
77175651 |
670 | { |
3865ea09 |
671 | return &trace->tracefiles; |
77175651 |
672 | } |
673 | |
674 | |
3865ea09 |
675 | void compute_tracefile_group(GQuark key_id, |
676 | GArray *group, |
677 | struct compute_tracefile_group_args *args) |
77175651 |
678 | { |
679 | int i; |
680 | LttTracefile *tf; |
681 | |
682 | for(i=0; i<group->len; i++) { |
683 | tf = &g_array_index (group, LttTracefile, i); |
684 | if(tf->cpu_online) |
3865ea09 |
685 | args->func(tf, args->func_args); |
77175651 |
686 | } |
687 | } |
688 | |
689 | |
8655430b |
690 | static void ltt_tracefile_group_destroy(gpointer data) |
3aee1200 |
691 | { |
692 | GArray *group = (GArray *)data; |
693 | int i; |
694 | LttTracefile *tf; |
695 | |
696 | for(i=0; i<group->len; i++) { |
697 | tf = &g_array_index (group, LttTracefile, i); |
698 | if(tf->cpu_online) |
699 | ltt_tracefile_close(tf); |
700 | } |
701 | g_array_free(group, TRUE); |
6cd62ccf |
702 | } |
703 | |
8655430b |
704 | static gboolean ltt_tracefile_group_has_cpu_online(gpointer data) |
49bf71b5 |
705 | { |
3aee1200 |
706 | GArray *group = (GArray *)data; |
707 | int i; |
708 | LttTracefile *tf; |
709 | |
710 | for(i=0; i<group->len; i++) { |
711 | tf = &g_array_index (group, LttTracefile, i); |
3c165eaf |
712 | if(tf->cpu_online) |
713 | return 1; |
3aee1200 |
714 | } |
715 | return 0; |
49bf71b5 |
716 | } |
717 | |
718 | |
3aee1200 |
719 | /* Open each tracefile under a specific directory. Put them in a |
720 | * GData : permits to access them using their tracefile group pathname. |
721 | * i.e. access control/modules tracefile group by index : |
722 | * "control/module". |
3865ea09 |
723 | * |
724 | * relative path is the path relative to the trace root |
725 | * root path is the full path |
3aee1200 |
726 | * |
4a55f63e |
727 | * A tracefile group is simply an array where all the per cpu tracefiles sit. |
3aee1200 |
728 | */ |
729 | |
8655430b |
730 | static int open_tracefiles(LttTrace *trace, gchar *root_path, gchar *relative_path) |
f7afe191 |
731 | { |
62e4e7bf |
732 | DIR *dir = opendir(root_path); |
733 | struct dirent *entry; |
734 | struct stat stat_buf; |
735 | int ret; |
3865ea09 |
736 | |
62e4e7bf |
737 | gchar path[PATH_MAX]; |
738 | int path_len; |
739 | gchar *path_ptr; |
3aee1200 |
740 | |
3865ea09 |
741 | int rel_path_len; |
69bd59ed |
742 | gchar rel_path[PATH_MAX]; |
743 | gchar *rel_path_ptr; |
cb03932a |
744 | LttTracefile tmp_tf; |
3865ea09 |
745 | |
62e4e7bf |
746 | if(dir == NULL) { |
747 | perror(root_path); |
748 | return ENOENT; |
749 | } |
3aee1200 |
750 | |
62e4e7bf |
751 | strncpy(path, root_path, PATH_MAX-1); |
752 | path_len = strlen(path); |
753 | path[path_len] = '/'; |
754 | path_len++; |
755 | path_ptr = path + path_len; |
3aee1200 |
756 | |
3865ea09 |
757 | strncpy(rel_path, relative_path, PATH_MAX-1); |
758 | rel_path_len = strlen(rel_path); |
759 | rel_path[rel_path_len] = '/'; |
760 | rel_path_len++; |
761 | rel_path_ptr = rel_path + rel_path_len; |
762 | |
62e4e7bf |
763 | while((entry = readdir(dir)) != NULL) { |
764 | |
765 | if(entry->d_name[0] == '.') continue; |
766 | |
767 | strncpy(path_ptr, entry->d_name, PATH_MAX - path_len); |
768 | strncpy(rel_path_ptr, entry->d_name, PATH_MAX - rel_path_len); |
769 | |
770 | ret = stat(path, &stat_buf); |
771 | if(ret == -1) { |
772 | perror(path); |
773 | continue; |
774 | } |
775 | |
776 | g_debug("Tracefile file or directory : %s\n", path); |
777 | |
fe452434 |
778 | // if(strcmp(rel_path, "/eventdefs") == 0) continue; |
74a588bb |
779 | |
62e4e7bf |
780 | if(S_ISDIR(stat_buf.st_mode)) { |
3aee1200 |
781 | |
62e4e7bf |
782 | g_debug("Entering subdirectory...\n"); |
783 | ret = open_tracefiles(trace, path, rel_path); |
784 | if(ret < 0) continue; |
785 | } else if(S_ISREG(stat_buf.st_mode)) { |
786 | GQuark name; |
f64fedd7 |
787 | guint num; |
788 | gulong tid, pgid; |
62e4e7bf |
789 | guint64 creation; |
3aee1200 |
790 | GArray *group; |
f64fedd7 |
791 | num = 0; |
792 | tid = pgid = 0; |
62e4e7bf |
793 | creation = 0; |
ae3d0f50 |
794 | if(get_tracefile_name_number(rel_path, &name, &num, &tid, &pgid, &creation)) |
3aee1200 |
795 | continue; /* invalid name */ |
3865ea09 |
796 | |
62e4e7bf |
797 | g_debug("Opening file.\n"); |
cb03932a |
798 | if(ltt_tracefile_open(trace, path, &tmp_tf)) { |
799 | g_info("Error opening tracefile %s", path); |
800 | |
801 | continue; /* error opening the tracefile : bad magic number ? */ |
802 | } |
803 | |
3865ea09 |
804 | g_debug("Tracefile name is %s and number is %u", |
805 | g_quark_to_string(name), num); |
806 | |
cb03932a |
807 | tmp_tf.cpu_online = 1; |
808 | tmp_tf.cpu_num = num; |
d3d34f49 |
809 | tmp_tf.name = name; |
62e4e7bf |
810 | tmp_tf.tid = tid; |
811 | tmp_tf.pgid = pgid; |
812 | tmp_tf.creation = creation; |
d1bb700c |
813 | if(tmp_tf.name == g_quark_from_string("/compact") |
62e4e7bf |
814 | || tmp_tf.name == g_quark_from_string("/flight-compact")) |
815 | tmp_tf.compact = 1; |
d1bb700c |
816 | else |
62e4e7bf |
817 | tmp_tf.compact = 0; |
3865ea09 |
818 | group = g_datalist_id_get_data(&trace->tracefiles, name); |
3aee1200 |
819 | if(group == NULL) { |
820 | /* Elements are automatically cleared when the array is allocated. |
821 | * It makes the cpu_online variable set to 0 : cpu offline, by default. |
822 | */ |
823 | group = g_array_sized_new (FALSE, TRUE, sizeof(LttTracefile), 10); |
3865ea09 |
824 | g_datalist_id_set_data_full(&trace->tracefiles, name, |
3aee1200 |
825 | group, ltt_tracefile_group_destroy); |
826 | } |
cb03932a |
827 | |
3aee1200 |
828 | /* Add the per cpu tracefile to the named group */ |
829 | unsigned int old_len = group->len; |
830 | if(num+1 > old_len) |
831 | group = g_array_set_size(group, num+1); |
cb03932a |
832 | g_array_index (group, LttTracefile, num) = tmp_tf; |
afd57a3c |
833 | g_array_index (group, LttTracefile, num).event.tracefile = |
834 | &g_array_index (group, LttTracefile, num); |
62e4e7bf |
835 | } |
836 | } |
837 | |
838 | closedir(dir); |
3aee1200 |
839 | |
62e4e7bf |
840 | return 0; |
f7afe191 |
841 | } |
842 | |
3aee1200 |
843 | |
844 | /* Presumes the tracefile is already seeked at the beginning. It makes sense, |
845 | * because it must be done just after the opening */ |
8655430b |
846 | static int ltt_process_facility_tracefile(LttTracefile *tf) |
3aee1200 |
847 | { |
848 | int err; |
29af7cfd |
849 | //LttFacility *fac; |
850 | //GArray *fac_ids; |
cb03932a |
851 | guint i; |
29af7cfd |
852 | //LttEventType *et; |
3aee1200 |
853 | |
854 | while(1) { |
855 | err = ltt_tracefile_read_seek(tf); |
856 | if(err == EPERM) goto seek_error; |
857 | else if(err == ERANGE) break; /* End of tracefile */ |
858 | |
859 | err = ltt_tracefile_read_update_event(tf); |
860 | if(err) goto update_error; |
861 | |
862 | /* We are on a facility load/or facility unload/ or heartbeat event */ |
863 | /* The rules are : |
864 | * * facility 0 is hardcoded : this is the core facility. It will be shown |
865 | * in the facility array though, and is shown as "loaded builtin" in the |
866 | * trace. |
867 | * It contains event : |
868 | * 0 : facility load |
869 | * 1 : facility unload |
870 | * 2 : state dump facility load |
d2083cab |
871 | * 3 : heartbeat |
3aee1200 |
872 | */ |
3c165eaf |
873 | if(tf->event.event_id >= MARKER_CORE_IDS) { |
d2083cab |
874 | /* Should only contain core facility */ |
3aee1200 |
875 | g_warning("Error in processing facility file %s, " |
3c165eaf |
876 | "should not contain event id %u.", g_quark_to_string(tf->name), |
877 | tf->event.event_id); |
3aee1200 |
878 | err = EPERM; |
3c165eaf |
879 | goto event_id_error; |
d2083cab |
880 | } else { |
3aee1200 |
881 | |
2e13d6af |
882 | char *pos; |
3c165eaf |
883 | const char *marker_name, *format; |
884 | uint16_t id; |
885 | guint8 int_size, long_size, pointer_size, size_t_size, alignment; |
3aee1200 |
886 | |
887 | // FIXME align |
3c165eaf |
888 | switch((enum marker_id)tf->event.event_id) { |
889 | case MARKER_ID_SET_MARKER_ID: |
2e13d6af |
890 | marker_name = pos = tf->event.data; |
3c165eaf |
891 | g_debug("Doing MARKER_ID_SET_MARKER_ID of marker %s", marker_name); |
2e13d6af |
892 | pos += strlen(marker_name) + 1; |
893 | //remove genevent compatibility |
256a5b3a |
894 | //pos += ltt_align((size_t)pos, tf->trace->arch_size, tf->alignment); |
895 | pos += ltt_align((size_t)pos, sizeof(uint16_t), tf->alignment); |
3c165eaf |
896 | id = ltt_get_uint16(LTT_GET_BO(tf), pos); |
c7146c5c |
897 | g_debug("In MARKER_ID_SET_MARKER_ID of marker %s id %hu", |
898 | marker_name, id); |
3c165eaf |
899 | pos += sizeof(guint16); |
900 | int_size = *(guint8*)pos; |
901 | pos += sizeof(guint8); |
902 | long_size = *(guint8*)pos; |
903 | pos += sizeof(guint8); |
904 | pointer_size = *(guint8*)pos; |
905 | pos += sizeof(guint8); |
906 | size_t_size = *(guint8*)pos; |
907 | pos += sizeof(guint8); |
908 | alignment = *(guint8*)pos; |
909 | pos += sizeof(guint8); |
910 | marker_id_event(tf->trace, g_quark_from_string(marker_name), |
911 | id, int_size, long_size, |
912 | pointer_size, size_t_size, alignment); |
3aee1200 |
913 | break; |
3c165eaf |
914 | case MARKER_ID_SET_MARKER_FORMAT: |
2e13d6af |
915 | marker_name = pos = tf->event.data; |
3c165eaf |
916 | g_debug("Doing MARKER_ID_SET_MARKER_FORMAT of marker %s", |
917 | marker_name); |
2e13d6af |
918 | pos += strlen(marker_name) + 1; |
919 | //break genevent. |
256a5b3a |
920 | //pos += ltt_align((size_t)pos, tf->trace->arch_size, tf->alignment); |
2e13d6af |
921 | format = pos; |
3c165eaf |
922 | pos += strlen(format) + 1; |
2e13d6af |
923 | //break genevent |
256a5b3a |
924 | //pos += ltt_align((size_t)pos, tf->trace->arch_size, tf->alignment); |
3c165eaf |
925 | marker_format_event(tf->trace, g_quark_from_string(marker_name), |
926 | format); |
927 | /* get information from dictionnary TODO */ |
3aee1200 |
928 | break; |
3c165eaf |
929 | case MARKER_ID_HEARTBEAT_32: |
930 | case MARKER_ID_HEARTBEAT_64: |
d1bb700c |
931 | break; |
3aee1200 |
932 | default: |
933 | g_warning("Error in processing facility file %s, " |
3c165eaf |
934 | "unknown event id %hhu.", |
3aee1200 |
935 | g_quark_to_string(tf->name), |
936 | tf->event.event_id); |
937 | err = EPERM; |
938 | goto event_id_error; |
939 | } |
940 | } |
963b5f2d |
941 | } |
3aee1200 |
942 | return 0; |
963b5f2d |
943 | |
3aee1200 |
944 | /* Error handling */ |
3aee1200 |
945 | event_id_error: |
3aee1200 |
946 | update_error: |
947 | seek_error: |
d2083cab |
948 | g_warning("An error occured in facility tracefile parsing"); |
3aee1200 |
949 | return err; |
6cd62ccf |
950 | } |
951 | |
e95fe8f7 |
952 | /* |
953 | * Open a trace and return its LttTrace handle. |
954 | * |
955 | * pathname must be the directory of the trace |
956 | */ |
963b5f2d |
957 | |
3aee1200 |
958 | LttTrace *ltt_trace_open(const gchar *pathname) |
959 | { |
960 | gchar abs_path[PATH_MAX]; |
961 | LttTrace * t; |
962 | LttTracefile *tf; |
963 | GArray *group; |
b56dcdf2 |
964 | int i, ret; |
16fcbb80 |
965 | struct ltt_block_start_header *header; |
62e4e7bf |
966 | DIR *dir; |
967 | struct dirent *entry; |
b56dcdf2 |
968 | guint control_found = 0; |
62e4e7bf |
969 | struct stat stat_buf; |
b56dcdf2 |
970 | gchar path[PATH_MAX]; |
3aee1200 |
971 | |
972 | t = g_new(LttTrace, 1); |
973 | if(!t) goto alloc_error; |
974 | |
975 | get_absolute_pathname(pathname, abs_path); |
976 | t->pathname = g_quark_from_string(abs_path); |
977 | |
3aee1200 |
978 | g_datalist_init(&t->tracefiles); |
b56dcdf2 |
979 | |
980 | /* Test to see if it looks like a trace */ |
62e4e7bf |
981 | dir = opendir(abs_path); |
982 | if(dir == NULL) { |
983 | perror(abs_path); |
984 | goto open_error; |
985 | } |
986 | while((entry = readdir(dir)) != NULL) { |
b56dcdf2 |
987 | strcpy(path, abs_path); |
988 | strcat(path, "/"); |
989 | strcat(path, entry->d_name); |
62e4e7bf |
990 | ret = stat(path, &stat_buf); |
991 | if(ret == -1) { |
992 | perror(path); |
993 | continue; |
994 | } |
995 | if(S_ISDIR(stat_buf.st_mode)) { |
b56dcdf2 |
996 | if(strcmp(entry->d_name, "control") == 0) { |
997 | control_found = 1; |
998 | } |
b56dcdf2 |
999 | } |
1000 | } |
1001 | closedir(dir); |
1002 | |
fe452434 |
1003 | if(!control_found) goto find_error; |
b56dcdf2 |
1004 | |
1005 | /* Open all the tracefiles */ |
e45551ac |
1006 | if(open_tracefiles(t, abs_path, "")) { |
1007 | g_warning("Error opening tracefile %s", abs_path); |
b56dcdf2 |
1008 | goto find_error; |
e45551ac |
1009 | } |
3aee1200 |
1010 | |
3aee1200 |
1011 | /* Parse each trace control/facilitiesN files : get runtime fac. info */ |
1012 | group = g_datalist_id_get_data(&t->tracefiles, LTT_TRACEFILE_NAME_FACILITIES); |
1013 | if(group == NULL) { |
1014 | g_error("Trace %s has no facility tracefile", abs_path); |
3865ea09 |
1015 | g_assert(0); |
3aee1200 |
1016 | goto facilities_error; |
1017 | } |
1018 | |
16fcbb80 |
1019 | /* Get the trace information for the control/facility 0 tracefile */ |
1020 | g_assert(group->len > 0); |
1021 | tf = &g_array_index (group, LttTracefile, 0); |
1022 | header = (struct ltt_block_start_header*)tf->buffer.head; |
51551c6f |
1023 | g_assert(parse_trace_header(header->trace, |
1024 | tf, t) == 0); |
b56dcdf2 |
1025 | |
1026 | t->num_cpu = group->len; |
16fcbb80 |
1027 | |
d79909d1 |
1028 | ret = allocate_marker_data(t); |
b44ba972 |
1029 | if (ret) |
d79909d1 |
1030 | g_error("Error in allocating marker data"); |
1031 | |
3aee1200 |
1032 | for(i=0; i<group->len; i++) { |
1033 | tf = &g_array_index (group, LttTracefile, i); |
1034 | if(ltt_process_facility_tracefile(tf)) |
1035 | goto facilities_error; |
1036 | } |
dd3a6d39 |
1037 | |
3aee1200 |
1038 | return t; |
1039 | |
1040 | /* Error handling */ |
1041 | facilities_error: |
d79909d1 |
1042 | destroy_marker_data(t); |
b56dcdf2 |
1043 | find_error: |
3aee1200 |
1044 | g_datalist_clear(&t->tracefiles); |
b56dcdf2 |
1045 | open_error: |
3aee1200 |
1046 | g_free(t); |
1047 | alloc_error: |
1048 | return NULL; |
1049 | |
1050 | } |
6cd62ccf |
1051 | |
e95fe8f7 |
1052 | /* Open another, completely independant, instance of a trace. |
1053 | * |
1054 | * A read on this new instance will read the first event of the trace. |
1055 | * |
3aee1200 |
1056 | * When we copy a trace, we want all the opening actions to happen again : |
1057 | * the trace will be reopened and totally independant from the original. |
1058 | * That's why we call ltt_trace_open. |
e95fe8f7 |
1059 | */ |
3aee1200 |
1060 | LttTrace *ltt_trace_copy(LttTrace *self) |
963b5f2d |
1061 | { |
3aee1200 |
1062 | return ltt_trace_open(g_quark_to_string(self->pathname)); |
963b5f2d |
1063 | } |
1064 | |
e95fe8f7 |
1065 | /* |
1066 | * Close a trace |
1067 | */ |
1068 | |
3aee1200 |
1069 | void ltt_trace_close(LttTrace *t) |
6cd62ccf |
1070 | { |
3aee1200 |
1071 | g_datalist_clear(&t->tracefiles); |
1072 | g_free(t); |
6cd62ccf |
1073 | } |
1074 | |
3aee1200 |
1075 | |
6cd62ccf |
1076 | /***************************************************************************** |
3aee1200 |
1077 | * Get the start time and end time of the trace |
6cd62ccf |
1078 | ****************************************************************************/ |
1079 | |
3c165eaf |
1080 | void ltt_tracefile_time_span_get(LttTracefile *tf, |
3aee1200 |
1081 | LttTime *start, LttTime *end) |
6cd62ccf |
1082 | { |
3aee1200 |
1083 | int err; |
6cd62ccf |
1084 | |
3aee1200 |
1085 | err = map_block(tf, 0); |
1086 | if(unlikely(err)) { |
1087 | g_error("Can not map block"); |
1088 | *start = ltt_time_infinite; |
1089 | } else |
1090 | *start = tf->buffer.begin.timestamp; |
1091 | |
1092 | err = map_block(tf, tf->num_blocks - 1); /* Last block */ |
1093 | if(unlikely(err)) { |
1094 | g_error("Can not map block"); |
1095 | *end = ltt_time_zero; |
1096 | } else |
1097 | *end = tf->buffer.end.timestamp; |
6cd62ccf |
1098 | } |
1099 | |
3aee1200 |
1100 | struct tracefile_time_span_get_args { |
1101 | LttTrace *t; |
1102 | LttTime *start; |
1103 | LttTime *end; |
1104 | }; |
963b5f2d |
1105 | |
8655430b |
1106 | static void group_time_span_get(GQuark name, gpointer data, gpointer user_data) |
963b5f2d |
1107 | { |
3aee1200 |
1108 | struct tracefile_time_span_get_args *args = |
1109 | (struct tracefile_time_span_get_args*)user_data; |
1110 | |
1111 | GArray *group = (GArray *)data; |
1112 | int i; |
1113 | LttTracefile *tf; |
1114 | LttTime tmp_start; |
1115 | LttTime tmp_end; |
1116 | |
1117 | for(i=0; i<group->len; i++) { |
1118 | tf = &g_array_index (group, LttTracefile, i); |
1119 | if(tf->cpu_online) { |
1120 | ltt_tracefile_time_span_get(tf, &tmp_start, &tmp_end); |
1121 | if(ltt_time_compare(*args->start, tmp_start)>0) *args->start = tmp_start; |
1122 | if(ltt_time_compare(*args->end, tmp_end)<0) *args->end = tmp_end; |
1123 | } |
1124 | } |
6cd62ccf |
1125 | } |
1126 | |
8655430b |
1127 | /* return the start and end time of a trace */ |
1128 | |
487ad181 |
1129 | void ltt_trace_time_span_get(LttTrace *t, LttTime *start, LttTime *end) |
1130 | { |
3aee1200 |
1131 | LttTime min_start = ltt_time_infinite; |
1132 | LttTime max_end = ltt_time_zero; |
1133 | struct tracefile_time_span_get_args args = { t, &min_start, &max_end }; |
487ad181 |
1134 | |
3aee1200 |
1135 | g_datalist_foreach(&t->tracefiles, &group_time_span_get, &args); |
1136 | |
1137 | if(start != NULL) *start = min_start; |
1138 | if(end != NULL) *end = max_end; |
1139 | |
487ad181 |
1140 | } |
1141 | |
1142 | |
3aee1200 |
1143 | /* Seek to the first event in a tracefile that has a time equal or greater than |
1144 | * the time passed in parameter. |
1145 | * |
1146 | * If the time parameter is outside the tracefile time span, seek to the first |
27304273 |
1147 | * event or if after, return ERANGE. |
3aee1200 |
1148 | * |
1149 | * If the time parameter is before the first event, we have to seek specially to |
1150 | * there. |
1151 | * |
27304273 |
1152 | * If the time is after the end of the trace, return ERANGE. |
3aee1200 |
1153 | * |
1154 | * Do a binary search to find the right block, then a sequential search in the |
1155 | * block to find the event. |
1156 | * |
1157 | * In the special case where the time requested fits inside a block that has no |
1158 | * event corresponding to the requested time, the first event of the next block |
1159 | * will be seeked. |
1160 | * |
1161 | * IMPORTANT NOTE : // FIXME everywhere... |
1162 | * |
1163 | * You MUST NOT do a ltt_tracefile_read right after a ltt_tracefile_seek_time : |
1164 | * you will jump over an event if you do. |
1165 | * |
1166 | * Return value : 0 : no error, the tf->event can be used |
27304273 |
1167 | * ERANGE : time if after the last event of the trace |
3aee1200 |
1168 | * otherwise : this is an error. |
1169 | * |
1170 | * */ |
1171 | |
1172 | int ltt_tracefile_seek_time(LttTracefile *tf, LttTime time) |
1173 | { |
1174 | int ret = 0; |
1175 | int err; |
1176 | unsigned int block_num, high, low; |
1177 | |
1178 | /* seek at the beginning of trace */ |
1179 | err = map_block(tf, 0); /* First block */ |
1180 | if(unlikely(err)) { |
1181 | g_error("Can not map block"); |
1182 | goto fail; |
caf7a67a |
1183 | } |
1184 | |
3aee1200 |
1185 | /* If the time is lower or equal the beginning of the trace, |
1186 | * go to the first event. */ |
1187 | if(ltt_time_compare(time, tf->buffer.begin.timestamp) <= 0) { |
1188 | ret = ltt_tracefile_read(tf); |
27304273 |
1189 | if(ret == ERANGE) goto range; |
1190 | else if (ret) goto fail; |
3aee1200 |
1191 | goto found; /* There is either no event in the trace or the event points |
1192 | to the first event in the trace */ |
1193 | } |
caf7a67a |
1194 | |
3aee1200 |
1195 | err = map_block(tf, tf->num_blocks - 1); /* Last block */ |
1196 | if(unlikely(err)) { |
1197 | g_error("Can not map block"); |
1198 | goto fail; |
caf7a67a |
1199 | } |
6cd62ccf |
1200 | |
27304273 |
1201 | /* If the time is after the end of the trace, return ERANGE. */ |
1202 | if(ltt_time_compare(time, tf->buffer.end.timestamp) > 0) { |
1203 | goto range; |
3aee1200 |
1204 | } |
62e55dd6 |
1205 | |
3aee1200 |
1206 | /* Binary search the block */ |
1207 | high = tf->num_blocks - 1; |
1208 | low = 0; |
1209 | |
1210 | while(1) { |
1211 | block_num = ((high-low) / 2) + low; |
1212 | |
1213 | err = map_block(tf, block_num); |
1214 | if(unlikely(err)) { |
1215 | g_error("Can not map block"); |
1216 | goto fail; |
db55eaae |
1217 | } |
3aee1200 |
1218 | if(high == low) { |
1219 | /* We cannot divide anymore : this is what would happen if the time |
1220 | * requested was exactly between two consecutive buffers'end and start |
1221 | * timestamps. This is also what would happend if we didn't deal with out |
1222 | * of span cases prior in this function. */ |
1223 | /* The event is right in the buffer! |
1224 | * (or in the next buffer first event) */ |
1225 | while(1) { |
1226 | ret = ltt_tracefile_read(tf); |
27304273 |
1227 | if(ret == ERANGE) goto range; /* ERANGE or EPERM */ |
3aee1200 |
1228 | else if(ret) goto fail; |
1229 | |
d9e13a0f |
1230 | if(ltt_time_compare(time, tf->event.event_time) <= 0) |
e45551ac |
1231 | goto found; |
3aee1200 |
1232 | } |
1233 | |
27304273 |
1234 | } else if(ltt_time_compare(time, tf->buffer.begin.timestamp) < 0) { |
3aee1200 |
1235 | /* go to lower part */ |
b1369bef |
1236 | high = block_num - 1; |
3aee1200 |
1237 | } else if(ltt_time_compare(time, tf->buffer.end.timestamp) > 0) { |
1238 | /* go to higher part */ |
b1369bef |
1239 | low = block_num + 1; |
3aee1200 |
1240 | } else {/* The event is right in the buffer! |
1241 | (or in the next buffer first event) */ |
1242 | while(1) { |
27304273 |
1243 | ret = ltt_tracefile_read(tf); |
1244 | if(ret == ERANGE) goto range; /* ERANGE or EPERM */ |
3aee1200 |
1245 | else if(ret) goto fail; |
1246 | |
d9e13a0f |
1247 | if(ltt_time_compare(time, tf->event.event_time) <= 0) |
3aee1200 |
1248 | break; |
6cd62ccf |
1249 | } |
3aee1200 |
1250 | goto found; |
6cd62ccf |
1251 | } |
6cd62ccf |
1252 | } |
3aee1200 |
1253 | |
1254 | found: |
1255 | return 0; |
27304273 |
1256 | range: |
1257 | return ERANGE; |
3aee1200 |
1258 | |
1259 | /* Error handling */ |
1260 | fail: |
1261 | g_error("ltt_tracefile_seek_time failed on tracefile %s", |
1262 | g_quark_to_string(tf->name)); |
1263 | return EPERM; |
6cd62ccf |
1264 | } |
1265 | |
e95fe8f7 |
1266 | /* Seek to a position indicated by an LttEventPosition |
1267 | */ |
80da81ad |
1268 | |
8655430b |
1269 | int ltt_tracefile_seek_position(LttTracefile *tf, const LttEventPosition *ep) |
1270 | { |
3aee1200 |
1271 | int err; |
1272 | |
1273 | if(ep->tracefile != tf) { |
1274 | goto fail; |
80da81ad |
1275 | } |
1276 | |
3aee1200 |
1277 | err = map_block(tf, ep->block); |
1278 | if(unlikely(err)) { |
1279 | g_error("Can not map block"); |
1280 | goto fail; |
1281 | } |
1282 | |
1283 | tf->event.offset = ep->offset; |
18206708 |
1284 | |
62e4e7bf |
1285 | /* Put back the event real tsc */ |
1286 | tf->event.tsc = ep->tsc; |
1287 | tf->buffer.tsc = ep->tsc; |
78f79181 |
1288 | |
3aee1200 |
1289 | err = ltt_tracefile_read_update_event(tf); |
1290 | if(err) goto fail; |
73faf25a |
1291 | |
1292 | /* deactivate this, as it does nothing for now |
3aee1200 |
1293 | err = ltt_tracefile_read_op(tf); |
1294 | if(err) goto fail; |
73faf25a |
1295 | */ |
80da81ad |
1296 | |
a0c1f622 |
1297 | return 0; |
3aee1200 |
1298 | |
1299 | fail: |
1300 | g_error("ltt_tracefile_seek_time failed on tracefile %s", |
1301 | g_quark_to_string(tf->name)); |
a0c1f622 |
1302 | return 1; |
3aee1200 |
1303 | } |
1304 | |
e95fe8f7 |
1305 | /* Given a TSC value, return the LttTime (seconds,nanoseconds) it |
1306 | * corresponds to. |
1307 | */ |
1308 | |
ae3d0f50 |
1309 | LttTime ltt_interpolate_time_from_tsc(LttTracefile *tf, guint64 tsc) |
3aee1200 |
1310 | { |
1311 | LttTime time; |
62e4e7bf |
1312 | |
1313 | if(tsc > tf->trace->start_tsc) { |
1314 | time = ltt_time_from_uint64( |
1315 | (double)(tsc - tf->trace->start_tsc) |
1316 | * (1000000000.0 / tf->trace->freq_scale) |
1317 | / (double)tf->trace->start_freq); |
1318 | time = ltt_time_add(tf->trace->start_time_from_tsc, time); |
1319 | } else { |
1320 | time = ltt_time_from_uint64( |
1321 | (double)(tf->trace->start_tsc - tsc) |
1322 | * (1000000000.0 / tf->trace->freq_scale) |
1323 | / (double)tf->trace->start_freq); |
1324 | time = ltt_time_sub(tf->trace->start_time_from_tsc, time); |
1325 | } |
3aee1200 |
1326 | return time; |
80da81ad |
1327 | } |
1328 | |
ae3d0f50 |
1329 | /* Calculate the real event time based on the buffer boundaries */ |
1330 | LttTime ltt_interpolate_time(LttTracefile *tf, LttEvent *event) |
1331 | { |
62e4e7bf |
1332 | return ltt_interpolate_time_from_tsc(tf, tf->buffer.tsc); |
ae3d0f50 |
1333 | } |
1334 | |
eed2ef37 |
1335 | |
1336 | /* Get the current event of the tracefile : valid until the next read */ |
1337 | LttEvent *ltt_tracefile_get_event(LttTracefile *tf) |
1338 | { |
1339 | return &tf->event; |
1340 | } |
1341 | |
1342 | |
1343 | |
6cd62ccf |
1344 | /***************************************************************************** |
1345 | *Function name |
3aee1200 |
1346 | * ltt_tracefile_read : Read the next event in the tracefile |
6cd62ccf |
1347 | *Input params |
1348 | * t : tracefile |
1349 | *Return value |
3aee1200 |
1350 | * |
1351 | * Returns 0 if an event can be used in tf->event. |
d822520b |
1352 | * Returns ERANGE on end of trace. The event in tf->event still can be used |
1353 | * (if the last block was not empty). |
3aee1200 |
1354 | * Returns EPERM on error. |
1355 | * |
1356 | * This function does make the tracefile event structure point to the event |
1357 | * currently pointed to by the tf->event. |
1358 | * |
1359 | * Note : you must call a ltt_tracefile_seek to the beginning of the trace to |
1360 | * reinitialize it after an error if you want results to be coherent. |
1361 | * It would be the case if a end of trace last buffer has no event : the end |
1362 | * of trace wouldn't be returned, but an error. |
1363 | * We make the assumption there is at least one event per buffer. |
6cd62ccf |
1364 | ****************************************************************************/ |
1365 | |
3aee1200 |
1366 | int ltt_tracefile_read(LttTracefile *tf) |
6cd62ccf |
1367 | { |
963b5f2d |
1368 | int err; |
6cd62ccf |
1369 | |
3aee1200 |
1370 | err = ltt_tracefile_read_seek(tf); |
1371 | if(err) return err; |
1372 | err = ltt_tracefile_read_update_event(tf); |
1373 | if(err) return err; |
73faf25a |
1374 | |
1375 | /* deactivate this, as it does nothing for now |
3aee1200 |
1376 | err = ltt_tracefile_read_op(tf); |
1377 | if(err) return err; |
73faf25a |
1378 | */ |
3aee1200 |
1379 | |
1380 | return 0; |
1381 | } |
1382 | |
1383 | int ltt_tracefile_read_seek(LttTracefile *tf) |
1384 | { |
1385 | int err; |
1386 | |
1387 | /* Get next buffer until we finally have an event, or end of trace */ |
1388 | while(1) { |
1389 | err = ltt_seek_next_event(tf); |
1390 | if(unlikely(err == ENOPROTOOPT)) { |
1391 | return EPERM; |
bdc36259 |
1392 | } |
bdc36259 |
1393 | |
3aee1200 |
1394 | /* Are we at the end of the buffer ? */ |
1395 | if(err == ERANGE) { |
1396 | if(unlikely(tf->buffer.index == tf->num_blocks-1)){ /* end of trace ? */ |
1397 | return ERANGE; |
1398 | } else { |
1399 | /* get next block */ |
1400 | err = map_block(tf, tf->buffer.index + 1); |
1401 | if(unlikely(err)) { |
1402 | g_error("Can not map block"); |
1403 | return EPERM; |
1404 | } |
1405 | } |
1406 | } else break; /* We found an event ! */ |
1407 | } |
2dee981d |
1408 | |
3aee1200 |
1409 | return 0; |
1410 | } |
18206708 |
1411 | |
e95fe8f7 |
1412 | /* do an operation when reading a new event */ |
18206708 |
1413 | |
73faf25a |
1414 | /* This function does nothing for now */ |
1415 | #if 0 |
3aee1200 |
1416 | int ltt_tracefile_read_op(LttTracefile *tf) |
1417 | { |
3aee1200 |
1418 | LttEvent *event; |
1419 | |
1420 | event = &tf->event; |
18206708 |
1421 | |
73faf25a |
1422 | /* do event specific operation */ |
1423 | |
1424 | /* nothing */ |
40331ba8 |
1425 | |
3aee1200 |
1426 | return 0; |
6cd62ccf |
1427 | } |
73faf25a |
1428 | #endif |
6cd62ccf |
1429 | |
91f8d488 |
1430 | static void print_debug_event_header(LttEvent *ev, void *start_pos, void *end_pos) |
1431 | { |
1432 | unsigned int offset = 0; |
1433 | int i, j; |
1434 | |
1435 | g_printf("Event header (tracefile %s offset %llx):\n", |
afd57a3c |
1436 | g_quark_to_string(ev->tracefile->long_name), |
91f8d488 |
1437 | ((uint64_t)ev->tracefile->buffer.index * ev->tracefile->buf_size) |
1438 | + (long)start_pos - (long)ev->tracefile->buffer.head); |
1439 | |
1440 | while (offset < (long)end_pos - (long)start_pos) { |
1441 | g_printf("%8lx", (long)start_pos - (long)ev->tracefile->buffer.head + offset); |
1442 | g_printf(" "); |
1443 | |
1444 | for (i = 0; i < 4 ; i++) { |
1445 | for (j = 0; j < 4; j++) { |
1446 | if (offset + ((i * 4) + j) < |
1447 | (long)end_pos - (long)start_pos) |
1448 | g_printf("%02hhX", |
d3353231 |
1449 | ((char*)start_pos)[offset + ((i * 4) + j)]); |
91f8d488 |
1450 | else |
1451 | g_printf(" "); |
1452 | g_printf(" "); |
1453 | } |
1454 | if (i < 4) |
1455 | g_printf(" "); |
1456 | } |
1457 | offset+=16; |
1458 | g_printf("\n"); |
1459 | } |
1460 | } |
1461 | |
6cd62ccf |
1462 | |
3aee1200 |
1463 | /* same as ltt_tracefile_read, but does not seek to the next event nor call |
1464 | * event specific operation. */ |
1465 | int ltt_tracefile_read_update_event(LttTracefile *tf) |
6cd62ccf |
1466 | { |
3aee1200 |
1467 | void * pos; |
1468 | LttEvent *event; |
91f8d488 |
1469 | void *pos_aligned; |
3aee1200 |
1470 | |
1471 | event = &tf->event; |
eed2ef37 |
1472 | pos = tf->buffer.head + event->offset; |
3aee1200 |
1473 | |
1474 | /* Read event header */ |
1475 | |
62e4e7bf |
1476 | /* Align the head */ |
1477 | if(!tf->compact) |
256a5b3a |
1478 | pos += ltt_align((size_t)pos, tf->trace->arch_size, tf->alignment); |
62e4e7bf |
1479 | else { |
1480 | g_assert(tf->has_heartbeat); |
256a5b3a |
1481 | pos += ltt_align((size_t)pos, sizeof(uint32_t), tf->alignment); |
62e4e7bf |
1482 | } |
91f8d488 |
1483 | pos_aligned = pos; |
3aee1200 |
1484 | |
62e4e7bf |
1485 | if(tf->has_heartbeat) { |
1486 | event->timestamp = ltt_get_uint32(LTT_GET_BO(tf), |
1487 | pos); |
d1bb700c |
1488 | if(!tf->compact) { |
1489 | /* 32 bits -> 64 bits tsc */ |
1490 | /* note : still works for seek and non seek cases. */ |
1491 | if(event->timestamp < (0xFFFFFFFFULL&tf->buffer.tsc)) { |
1492 | tf->buffer.tsc = ((tf->buffer.tsc&0xFFFFFFFF00000000ULL) |
1493 | + 0x100000000ULL) |
1494 | | (guint64)event->timestamp; |
1495 | event->tsc = tf->buffer.tsc; |
1496 | } else { |
1497 | /* no overflow */ |
1498 | tf->buffer.tsc = (tf->buffer.tsc&0xFFFFFFFF00000000ULL) |
1499 | | (guint64)event->timestamp; |
1500 | event->tsc = tf->buffer.tsc; |
62e4e7bf |
1501 | event->compact_data = 0; |
d1bb700c |
1502 | } |
1503 | } else { |
1504 | /* Compact header */ |
1505 | /* We keep the LSB of the previous timestamp, to make sure |
1506 | * we never go back */ |
1507 | event->event_id = event->timestamp >> tf->tscbits; |
d3353231 |
1508 | event->event_id = event->event_id & ((1 << tf->compact_event_bits) - 1); |
dd3a6d39 |
1509 | event->compact_data = event->timestamp >> |
d3353231 |
1510 | (tf->compact_event_bits + tf->tscbits); |
dd3a6d39 |
1511 | //printf("tsc bits %u, ev bits %u init data %u\n", |
62e4e7bf |
1512 | // tf->tscbits, tf->trace->compact_event_bits, event->compact_data); |
dd3a6d39 |
1513 | /* Put the compact data back in original endianness */ |
1514 | event->compact_data = ltt_get_uint32(LTT_GET_BO(tf), &event->compact_data); |
d1bb700c |
1515 | event->event_size = 0xFFFF; |
dd3a6d39 |
1516 | //printf("Found compact event %d\n", event->event_id); |
1517 | //printf("Compact data %d\n", event->compact_data); |
d1bb700c |
1518 | event->timestamp = event->timestamp << tf->tsc_lsb_truncate; |
1519 | event->timestamp = event->timestamp & tf->tsc_mask; |
dd3a6d39 |
1520 | //printf("timestamp 0x%lX\n", event->timestamp); |
1521 | //printf("mask 0x%llX\n", tf->tsc_mask); |
1522 | //printf("mask_next 0x%llX\n", tf->tsc_mask_next_bit); |
1523 | //printf("previous tsc 0x%llX\n", tf->buffer.tsc); |
1524 | //printf("previous tsc&mask 0x%llX\n", tf->tsc_mask&tf->buffer.tsc); |
1525 | //printf("previous tsc&(~mask) 0x%llX\n", tf->buffer.tsc&(~tf->tsc_mask)); |
d1bb700c |
1526 | if(event->timestamp < (tf->tsc_mask&tf->buffer.tsc)) { |
dd3a6d39 |
1527 | //printf("wrap\n"); |
d1bb700c |
1528 | tf->buffer.tsc = ((tf->buffer.tsc&(~tf->tsc_mask)) |
1529 | + tf->tsc_mask_next_bit) |
1530 | | (guint64)event->timestamp; |
1531 | event->tsc = tf->buffer.tsc; |
1532 | } else { |
dd3a6d39 |
1533 | //printf("no wrap\n"); |
d1bb700c |
1534 | /* no overflow */ |
1535 | tf->buffer.tsc = (tf->buffer.tsc&(~tf->tsc_mask)) |
1536 | | (guint64)event->timestamp; |
1537 | event->tsc = tf->buffer.tsc; |
1538 | } |
dd3a6d39 |
1539 | //printf("current tsc 0x%llX\n", tf->buffer.tsc); |
d1bb700c |
1540 | } |
62e4e7bf |
1541 | pos += sizeof(guint32); |
1542 | } else { |
1543 | event->tsc = ltt_get_uint64(LTT_GET_BO(tf), pos); |
1544 | tf->buffer.tsc = event->tsc; |
1545 | event->compact_data = 0; |
1546 | pos += sizeof(guint64); |
1547 | } |
1548 | event->event_time = ltt_interpolate_time(tf, event); |
3aee1200 |
1549 | |
d1bb700c |
1550 | if(!tf->compact) { |
f439de06 |
1551 | event->event_id = ltt_get_uint16(LTT_GET_BO(tf), pos); |
3c165eaf |
1552 | pos += sizeof(guint16); |
d1bb700c |
1553 | |
1554 | event->event_size = ltt_get_uint16(LTT_GET_BO(tf), pos); |
1555 | pos += sizeof(guint16); |
1556 | } else { |
1557 | /* Compact event */ |
dcf96842 |
1558 | event->event_size = 0xFFFF; |
d1bb700c |
1559 | } |
91f8d488 |
1560 | |
1561 | if (a_event_debug) |
1562 | print_debug_event_header(event, pos_aligned, pos); |
1563 | |
62e4e7bf |
1564 | /* Align the head */ |
1565 | if(!tf->compact) |
256a5b3a |
1566 | pos += ltt_align((size_t)pos, tf->trace->arch_size, tf->alignment); |
f104d082 |
1567 | |
3aee1200 |
1568 | event->data = pos; |
1569 | |
77175651 |
1570 | /* get the data size and update the event fields with the current |
d1bb700c |
1571 | * information. Also update the time if a heartbeat_full event is found. */ |
eed2ef37 |
1572 | ltt_update_event_size(tf); |
77175651 |
1573 | |
3aee1200 |
1574 | return 0; |
6cd62ccf |
1575 | } |
1576 | |
507915ee |
1577 | |
6cd62ccf |
1578 | /**************************************************************************** |
1579 | *Function name |
3aee1200 |
1580 | * map_block : map a block from the file |
6cd62ccf |
1581 | *Input Params |
1582 | * lttdes : ltt trace file |
1583 | * whichBlock : the block which will be read |
1584 | *return value |
1585 | * 0 : success |
1586 | * EINVAL : lseek fail |
1587 | * EIO : can not read from the file |
1588 | ****************************************************************************/ |
1589 | |
8655430b |
1590 | static gint map_block(LttTracefile * tf, guint block_num) |
6cd62ccf |
1591 | { |
b77d1b57 |
1592 | int page_size = getpagesize(); |
3aee1200 |
1593 | struct ltt_block_start_header *header; |
1594 | |
1595 | g_assert(block_num < tf->num_blocks); |
6cd62ccf |
1596 | |
f628823c |
1597 | if(tf->buffer.head != NULL) { |
1598 | if(munmap(tf->buffer.head, PAGE_ALIGN(tf->buf_size))) { |
1599 | g_warning("unmap size : %u\n", |
1600 | PAGE_ALIGN(tf->buf_size)); |
1601 | perror("munmap error"); |
1602 | g_assert(0); |
1603 | } |
1604 | } |
1605 | |
ac849774 |
1606 | |
3aee1200 |
1607 | /* Multiple of pages aligned head */ |
b77d1b57 |
1608 | tf->buffer.head = mmap(0, |
f628823c |
1609 | PAGE_ALIGN(tf->buf_size), |
b77d1b57 |
1610 | PROT_READ, MAP_PRIVATE, tf->fd, |
f628823c |
1611 | PAGE_ALIGN((off_t)tf->buf_size * (off_t)block_num)); |
3aee1200 |
1612 | |
3865ea09 |
1613 | if(tf->buffer.head == MAP_FAILED) { |
3aee1200 |
1614 | perror("Error in allocating memory for buffer of tracefile"); |
3865ea09 |
1615 | g_assert(0); |
3aee1200 |
1616 | goto map_error; |
6cd62ccf |
1617 | } |
f64fedd7 |
1618 | g_assert( ( (gulong)tf->buffer.head&(8-1) ) == 0); // make sure it's aligned. |
3aee1200 |
1619 | |
6cd62ccf |
1620 | |
3aee1200 |
1621 | tf->buffer.index = block_num; |
1622 | |
1623 | header = (struct ltt_block_start_header*)tf->buffer.head; |
1624 | |
791dffa6 |
1625 | #if 0 |
986e2a7c |
1626 | tf->buffer.begin.timestamp = ltt_time_add( |
1627 | ltt_time_from_uint64( |
1628 | ltt_get_uint64(LTT_GET_BO(tf), |
1629 | &header->begin.timestamp) |
1630 | - tf->trace->start_monotonic), |
1631 | tf->trace->start_time); |
791dffa6 |
1632 | #endif //0 |
348c6ba8 |
1633 | //g_debug("block %u begin : %lu.%lu", block_num, |
1634 | // tf->buffer.begin.timestamp.tv_sec, tf->buffer.begin.timestamp.tv_nsec); |
3aee1200 |
1635 | tf->buffer.begin.cycle_count = ltt_get_uint64(LTT_GET_BO(tf), |
1636 | &header->begin.cycle_count); |
986e2a7c |
1637 | tf->buffer.begin.freq = ltt_get_uint64(LTT_GET_BO(tf), |
1638 | &header->begin.freq); |
62e4e7bf |
1639 | if(tf->buffer.begin.freq == 0) |
1640 | tf->buffer.begin.freq = tf->trace->start_freq; |
ae3d0f50 |
1641 | |
1642 | tf->buffer.begin.timestamp = ltt_interpolate_time_from_tsc(tf, |
62e4e7bf |
1643 | tf->buffer.begin.cycle_count); |
ae3d0f50 |
1644 | #if 0 |
62e4e7bf |
1645 | ltt_time_add( |
791dffa6 |
1646 | ltt_time_from_uint64( |
88612d17 |
1647 | (double)(tf->buffer.begin.cycle_count |
1648 | - tf->trace->start_tsc) * 1000000.0 |
791dffa6 |
1649 | / (double)tf->trace->start_freq), |
62e4e7bf |
1650 | tf->trace->start_time_from_tsc); |
ae3d0f50 |
1651 | #endif //0 |
791dffa6 |
1652 | #if 0 |
1653 | |
986e2a7c |
1654 | tf->buffer.end.timestamp = ltt_time_add( |
1655 | ltt_time_from_uint64( |
1656 | ltt_get_uint64(LTT_GET_BO(tf), |
1657 | &header->end.timestamp) |
1658 | - tf->trace->start_monotonic), |
1659 | tf->trace->start_time); |
791dffa6 |
1660 | #endif //0 |
348c6ba8 |
1661 | //g_debug("block %u end : %lu.%lu", block_num, |
1662 | // tf->buffer.end.timestamp.tv_sec, tf->buffer.end.timestamp.tv_nsec); |
3aee1200 |
1663 | tf->buffer.end.cycle_count = ltt_get_uint64(LTT_GET_BO(tf), |
1664 | &header->end.cycle_count); |
986e2a7c |
1665 | tf->buffer.end.freq = ltt_get_uint64(LTT_GET_BO(tf), |
1666 | &header->end.freq); |
62e4e7bf |
1667 | if(tf->buffer.end.freq == 0) |
1668 | tf->buffer.end.freq = tf->trace->start_freq; |
1669 | |
3aee1200 |
1670 | tf->buffer.lost_size = ltt_get_uint32(LTT_GET_BO(tf), |
986e2a7c |
1671 | &header->lost_size); |
ae3d0f50 |
1672 | tf->buffer.end.timestamp = ltt_interpolate_time_from_tsc(tf, |
62e4e7bf |
1673 | tf->buffer.end.cycle_count); |
ae3d0f50 |
1674 | #if 0 |
62e4e7bf |
1675 | ltt_time_add( |
791dffa6 |
1676 | ltt_time_from_uint64( |
88612d17 |
1677 | (double)(tf->buffer.end.cycle_count |
1678 | - tf->trace->start_tsc) * 1000000.0 |
791dffa6 |
1679 | / (double)tf->trace->start_freq), |
88612d17 |
1680 | tf->trace->start_time_from_tsc); |
ae3d0f50 |
1681 | #endif //0 |
3aee1200 |
1682 | tf->buffer.tsc = tf->buffer.begin.cycle_count; |
1683 | tf->event.tsc = tf->buffer.tsc; |
986e2a7c |
1684 | tf->buffer.freq = tf->buffer.begin.freq; |
3aee1200 |
1685 | |
1686 | /* FIXME |
1687 | * eventually support variable buffer size : will need a partial pre-read of |
1688 | * the headers to create an index when we open the trace... eventually. */ |
f628823c |
1689 | g_assert(tf->buf_size == ltt_get_uint32(LTT_GET_BO(tf), |
3aee1200 |
1690 | &header->buf_size)); |
507915ee |
1691 | |
3aee1200 |
1692 | /* Now that the buffer is mapped, calculate the time interpolation for the |
1693 | * block. */ |
1694 | |
791dffa6 |
1695 | // tf->buffer.nsecs_per_cycle = calc_nsecs_per_cycle(tf); |
1696 | //tf->buffer.cyc2ns_scale = calc_nsecs_per_cycle(tf); |
3aee1200 |
1697 | |
1698 | /* Make the current event point to the beginning of the buffer : |
1699 | * it means that the event read must get the first event. */ |
1700 | tf->event.tracefile = tf; |
1701 | tf->event.block = block_num; |
eed2ef37 |
1702 | tf->event.offset = 0; |
3aee1200 |
1703 | |
1704 | return 0; |
6cd62ccf |
1705 | |
3aee1200 |
1706 | map_error: |
1707 | return -errno; |
40331ba8 |
1708 | |
6cd62ccf |
1709 | } |
1710 | |
91f8d488 |
1711 | static void print_debug_event_data(LttEvent *ev) |
1712 | { |
1713 | unsigned int offset = 0; |
1714 | int i, j; |
1715 | |
1716 | if (!max(ev->event_size, ev->data_size)) |
1717 | return; |
1718 | |
1719 | g_printf("Event data (tracefile %s offset %llx):\n", |
afd57a3c |
1720 | g_quark_to_string(ev->tracefile->long_name), |
91f8d488 |
1721 | ((uint64_t)ev->tracefile->buffer.index * ev->tracefile->buf_size) |
1722 | + (long)ev->data - (long)ev->tracefile->buffer.head); |
1723 | |
1724 | while (offset < max(ev->event_size, ev->data_size)) { |
1725 | g_printf("%8lx", (long)ev->data + offset |
1726 | - (long)ev->tracefile->buffer.head); |
1727 | g_printf(" "); |
1728 | |
1729 | for (i = 0; i < 4 ; i++) { |
1730 | for (j = 0; j < 4; j++) { |
1731 | if (offset + ((i * 4) + j) < max(ev->event_size, ev->data_size)) |
1732 | g_printf("%02hhX", ((char*)ev->data)[offset + ((i * 4) + j)]); |
1733 | else |
1734 | g_printf(" "); |
1735 | g_printf(" "); |
1736 | } |
1737 | if (i < 4) |
1738 | g_printf(" "); |
1739 | } |
1740 | |
1741 | g_printf(" "); |
1742 | |
1743 | for (i = 0; i < 4; i++) { |
1744 | for (j = 0; j < 4; j++) { |
1745 | if (offset + ((i * 4) + j) < max(ev->event_size, ev->data_size)) { |
1746 | if (isprint(((char*)ev->data)[offset + ((i * 4) + j)])) |
1747 | g_printf("%c", ((char*)ev->data)[offset + ((i * 4) + j)]); |
1748 | else |
1749 | g_printf("."); |
1750 | } else |
1751 | g_printf(" "); |
1752 | } |
1753 | } |
1754 | offset+=16; |
1755 | g_printf("\n"); |
1756 | } |
1757 | } |
1758 | |
77175651 |
1759 | /* It will update the fields offsets too */ |
1760 | void ltt_update_event_size(LttTracefile *tf) |
6cd62ccf |
1761 | { |
2312de30 |
1762 | off_t size = 0; |
d1bb700c |
1763 | char *tscdata; |
d2007fbd |
1764 | struct marker_info *info; |
44f317b7 |
1765 | |
d2007fbd |
1766 | switch((enum marker_id)tf->event.event_id) { |
1767 | case MARKER_ID_SET_MARKER_ID: |
44f317b7 |
1768 | size = strlen((char*)tf->event.data) + 1; |
07effdbd |
1769 | g_debug("marker %s id set", (char*)tf->event.data); |
256a5b3a |
1770 | size += ltt_align(size, sizeof(guint16), tf->alignment); |
d2007fbd |
1771 | size += sizeof(guint16); |
3c165eaf |
1772 | size += sizeof(guint8); |
1773 | size += sizeof(guint8); |
1774 | size += sizeof(guint8); |
1775 | size += sizeof(guint8); |
1776 | size += sizeof(guint8); |
44f317b7 |
1777 | break; |
d2007fbd |
1778 | case MARKER_ID_SET_MARKER_FORMAT: |
07effdbd |
1779 | g_debug("marker %s format set", (char*)tf->event.data); |
44f317b7 |
1780 | size = strlen((char*)tf->event.data) + 1; |
2e13d6af |
1781 | size += strlen((char*)tf->event.data + size) + 1; |
44f317b7 |
1782 | break; |
d2007fbd |
1783 | case MARKER_ID_HEARTBEAT_32: |
07effdbd |
1784 | g_debug("Update Event heartbeat 32 bits"); |
44f317b7 |
1785 | break; |
d2007fbd |
1786 | case MARKER_ID_HEARTBEAT_64: |
07effdbd |
1787 | g_debug("Update Event heartbeat 64 bits"); |
d1bb700c |
1788 | tscdata = (char*)(tf->event.data); |
1789 | tf->event.tsc = ltt_get_uint64(LTT_GET_BO(tf), tscdata); |
1790 | tf->buffer.tsc = tf->event.tsc; |
1791 | tf->event.event_time = ltt_interpolate_time(tf, &tf->event); |
256a5b3a |
1792 | size = ltt_align(size, sizeof(guint64), tf->alignment); |
d2007fbd |
1793 | size += sizeof(guint64); |
d1bb700c |
1794 | break; |
256a5b3a |
1795 | } |
1796 | |
1797 | info = marker_get_info_from_id(tf->trace, tf->event.event_id); |
dcf96842 |
1798 | |
256a5b3a |
1799 | if (tf->event.event_id >= MARKER_CORE_IDS) |
1800 | g_assert(info != NULL); |
1801 | |
1802 | /* Do not update field offsets of core markers when initially reading the |
1803 | * facility tracefile when the infos about these markers do not exist yet. |
1804 | */ |
1805 | if (likely(info && info->fields)) { |
1806 | if (info->size != -1) |
1807 | size = info->size; |
1808 | else |
1809 | size = marker_update_fields_offsets(marker_get_info_from_id(tf->trace, |
1810 | tf->event.event_id), tf->event.data); |
44f317b7 |
1811 | } |
c4afd5d8 |
1812 | |
d2007fbd |
1813 | tf->event.data_size = size; |
1814 | |
1815 | /* Check consistency between kernel and LTTV structure sizes */ |
1816 | if(tf->event.event_size == 0xFFFF) { |
1817 | /* Event size too big to fit in the event size field */ |
1818 | tf->event.event_size = tf->event.data_size; |
1819 | } |
91f8d488 |
1820 | |
1821 | if (a_event_debug) |
1822 | print_debug_event_data(&tf->event); |
1823 | |
27c089c1 |
1824 | /* Having a marker load or marker format event out of the facilities |
1825 | * tracefiles is a serious bug. */ |
1826 | switch((enum marker_id)tf->event.event_id) { |
1827 | case MARKER_ID_SET_MARKER_ID: |
1828 | case MARKER_ID_SET_MARKER_FORMAT: |
1829 | if (tf->name != g_quark_from_string("/control/facilities")) |
1830 | g_error("Trace inconsistency : metadata event found in data " |
1831 | "tracefile %s", g_quark_to_string(tf->long_name)); |
1832 | } |
1833 | |
d2007fbd |
1834 | if (tf->event.data_size != tf->event.event_size) { |
3c165eaf |
1835 | struct marker_info *info = marker_get_info_from_id(tf->trace, |
1836 | tf->event.event_id); |
1837 | g_error("Kernel/LTTV event size differs for event %s: kernel %u, LTTV %u", |
1838 | g_quark_to_string(info->name), |
1839 | tf->event.event_size, tf->event.data_size); |
d2007fbd |
1840 | exit(-1); |
1841 | } |
6cd62ccf |
1842 | } |
1843 | |
6cd62ccf |
1844 | |
3aee1200 |
1845 | /* Take the tf current event offset and use the event facility id and event id |
1846 | * to figure out where is the next event offset. |
1847 | * |
1848 | * This is an internal function not aiming at being used elsewhere : it will |
1849 | * not jump over the current block limits. Please consider using |
1850 | * ltt_tracefile_read to do this. |
1851 | * |
1852 | * Returns 0 on success |
1853 | * ERANGE if we are at the end of the buffer. |
1854 | * ENOPROTOOPT if an error occured when getting the current event size. |
1855 | */ |
8655430b |
1856 | static int ltt_seek_next_event(LttTracefile *tf) |
6cd62ccf |
1857 | { |
3aee1200 |
1858 | int ret = 0; |
1859 | void *pos; |
3aee1200 |
1860 | |
1861 | /* seek over the buffer header if we are at the buffer start */ |
eed2ef37 |
1862 | if(tf->event.offset == 0) { |
51551c6f |
1863 | tf->event.offset += tf->buffer_header_size; |
b77d1b57 |
1864 | |
f628823c |
1865 | if(tf->event.offset == tf->buf_size - tf->buffer.lost_size) { |
b77d1b57 |
1866 | ret = ERANGE; |
1867 | } |
3aee1200 |
1868 | goto found; |
1869 | } |
6cd62ccf |
1870 | |
6cd62ccf |
1871 | |
3aee1200 |
1872 | pos = tf->event.data; |
1873 | |
77175651 |
1874 | if(tf->event.data_size < 0) goto error; |
3aee1200 |
1875 | |
77175651 |
1876 | pos += (size_t)tf->event.data_size; |
3aee1200 |
1877 | |
eed2ef37 |
1878 | tf->event.offset = pos - tf->buffer.head; |
cb03932a |
1879 | |
f628823c |
1880 | if(tf->event.offset == tf->buf_size - tf->buffer.lost_size) { |
cb03932a |
1881 | ret = ERANGE; |
1882 | goto found; |
1883 | } |
36d36c9f |
1884 | g_assert(tf->event.offset < tf->buf_size - tf->buffer.lost_size); |
3aee1200 |
1885 | |
1886 | found: |
1887 | return ret; |
1888 | |
1889 | error: |
1890 | g_error("Error in ltt_seek_next_event for tracefile %s", |
1891 | g_quark_to_string(tf->name)); |
1892 | return ENOPROTOOPT; |
6cd62ccf |
1893 | } |
1894 | |
791dffa6 |
1895 | #if 0 |
6cd62ccf |
1896 | /***************************************************************************** |
1897 | *Function name |
3aee1200 |
1898 | * calc_nsecs_per_cycle : calculate nsecs per cycle for current block |
986e2a7c |
1899 | * |
1900 | * 1.0 / (freq(khz) *1000) * 1000000000 |
6cd62ccf |
1901 | *Input Params |
1902 | * t : tracefile |
1903 | ****************************************************************************/ |
986e2a7c |
1904 | /* from timer_tsc.c */ |
1905 | #define CYC2NS_SCALE_FACTOR 10 |
791dffa6 |
1906 | static guint32 calc_nsecs_per_cycle(LttTracefile * tf) |
6cd62ccf |
1907 | { |
986e2a7c |
1908 | //return 1e6 / (double)tf->buffer.freq; |
791dffa6 |
1909 | guint32 cpu_mhz = tf->buffer.freq / 1000; |
1910 | guint32 cyc2ns_scale = (1000 << CYC2NS_SCALE_FACTOR)/cpu_mhz; |
6cd62ccf |
1911 | |
791dffa6 |
1912 | return cyc2ns_scale; |
986e2a7c |
1913 | // return 1e6 / (double)tf->buffer.freq; |
3aee1200 |
1914 | } |
791dffa6 |
1915 | |
1916 | static guint64 cycles_2_ns(LttTracefile *tf, guint64 cycles) |
1917 | { |
1918 | return (cycles * tf->buffer.cyc2ns_scale) >> CYC2NS_SCALE_FACTOR; |
1919 | } |
1920 | #endif //0 |
1921 | |
3aee1200 |
1922 | #if 0 |
1923 | void setFieldsOffset(LttTracefile *tf, LttEventType *evT,void *evD) |
1924 | { |
1925 | LttField * rootFld = evT->root_field; |
1926 | // rootFld->base_address = evD; |
2dee981d |
1927 | |
3aee1200 |
1928 | if(likely(rootFld)) |
1929 | rootFld->field_size = getFieldtypeSize(tf, evT->facility, |
1930 | evT, 0,0,rootFld, evD); |
6cd62ccf |
1931 | } |
3aee1200 |
1932 | #endif //0 |
f104d082 |
1933 | #if 0 |
3aee1200 |
1934 | /***************************************************************************** |
6cd62ccf |
1935 | *Function name |
3aee1200 |
1936 | * set_fields_offsets : set the precomputable offset of the fields |
6cd62ccf |
1937 | *Input params |
3aee1200 |
1938 | * tracefile : opened trace file |
1939 | * event_type : the event type |
6cd62ccf |
1940 | ****************************************************************************/ |
1941 | |
3aee1200 |
1942 | void set_fields_offsets(LttTracefile *tf, LttEventType *event_type) |
6cd62ccf |
1943 | { |
3aee1200 |
1944 | LttField *field = event_type->root_field; |
1945 | enum field_status fixed_root = FIELD_FIXED, fixed_parent = FIELD_FIXED; |
1946 | |
1947 | if(likely(field)) |
1948 | preset_field_type_size(tf, event_type, 0, 0, |
1949 | &fixed_root, &fixed_parent, |
1950 | field); |
1951 | |
1952 | } |
f104d082 |
1953 | #endif //0 |
1954 | |
1955 | |
1956 | /***************************************************************************** |
1957 | *Function name |
1958 | * get_alignment : Get the alignment needed for a field. |
1959 | *Input params |
f104d082 |
1960 | * field : field |
1961 | * |
1962 | * returns : The size on which it must be aligned. |
1963 | * |
1964 | ****************************************************************************/ |
3c165eaf |
1965 | #if 0 |
743e50fd |
1966 | off_t get_alignment(LttField *field) |
f104d082 |
1967 | { |
2312de30 |
1968 | LttType *type = &field->field_type; |
f104d082 |
1969 | |
1970 | switch(type->type_class) { |
1971 | case LTT_INT_FIXED: |
1972 | case LTT_UINT_FIXED: |
1973 | case LTT_POINTER: |
1974 | case LTT_CHAR: |
1975 | case LTT_UCHAR: |
1976 | case LTT_SHORT: |
1977 | case LTT_USHORT: |
1978 | case LTT_INT: |
1979 | case LTT_UINT: |
1980 | case LTT_LONG: |
1981 | case LTT_ULONG: |
1982 | case LTT_SIZE_T: |
1983 | case LTT_SSIZE_T: |
1984 | case LTT_OFF_T: |
1985 | case LTT_FLOAT: |
1986 | case LTT_ENUM: |
1987 | /* Align offset on type size */ |
83e160f2 |
1988 | g_assert(field->field_size != 0); |
f104d082 |
1989 | return field->field_size; |
1990 | break; |
1991 | case LTT_STRING: |
83e160f2 |
1992 | return 1; |
f104d082 |
1993 | break; |
1994 | case LTT_ARRAY: |
1995 | g_assert(type->fields->len == 1); |
1996 | { |
1997 | LttField *child = &g_array_index(type->fields, LttField, 0); |
743e50fd |
1998 | return get_alignment(child); |
f104d082 |
1999 | } |
2000 | break; |
2001 | case LTT_SEQUENCE: |
2002 | g_assert(type->fields->len == 2); |
2003 | { |
83e160f2 |
2004 | off_t localign = 1; |
f104d082 |
2005 | LttField *child = &g_array_index(type->fields, LttField, 0); |
2006 | |
743e50fd |
2007 | localign = max(localign, get_alignment(child)); |
f104d082 |
2008 | |
2009 | child = &g_array_index(type->fields, LttField, 1); |
743e50fd |
2010 | localign = max(localign, get_alignment(child)); |
f104d082 |
2011 | |
2012 | return localign; |
2013 | } |
2014 | break; |
2015 | case LTT_STRUCT: |
2016 | case LTT_UNION: |
2017 | { |
2018 | guint i; |
83e160f2 |
2019 | off_t localign = 1; |
f104d082 |
2020 | |
2021 | for(i=0; i<type->fields->len; i++) { |
2022 | LttField *child = &g_array_index(type->fields, LttField, i); |
743e50fd |
2023 | localign = max(localign, get_alignment(child)); |
f104d082 |
2024 | } |
2025 | return localign; |
2026 | } |
2027 | break; |
2028 | case LTT_NONE: |
2029 | default: |
2030 | g_error("get_alignment : unknown type"); |
83e160f2 |
2031 | return -1; |
f104d082 |
2032 | } |
f104d082 |
2033 | } |
2034 | |
3c165eaf |
2035 | #endif //0 |
2036 | |
f104d082 |
2037 | /***************************************************************************** |
2038 | *Function name |
2039 | * field_compute_static_size : Determine the size of fields known by their |
2040 | * sole definition. Unions, arrays and struct sizes might be known, but |
2041 | * the parser does not give that information. |
2042 | *Input params |
2043 | * tf : tracefile |
2044 | * field : field |
2045 | * |
2046 | ****************************************************************************/ |
3c165eaf |
2047 | #if 0 |
743e50fd |
2048 | void field_compute_static_size(LttFacility *fac, LttField *field) |
f104d082 |
2049 | { |
2312de30 |
2050 | LttType *type = &field->field_type; |
f104d082 |
2051 | |
2052 | switch(type->type_class) { |
2053 | case LTT_INT_FIXED: |
2054 | case LTT_UINT_FIXED: |
2055 | case LTT_POINTER: |
2056 | case LTT_CHAR: |
2057 | case LTT_UCHAR: |
2058 | case LTT_SHORT: |
2059 | case LTT_USHORT: |
2060 | case LTT_INT: |
2061 | case LTT_UINT: |
2062 | case LTT_LONG: |
2063 | case LTT_ULONG: |
2064 | case LTT_SIZE_T: |
2065 | case LTT_SSIZE_T: |
2066 | case LTT_OFF_T: |
2067 | case LTT_FLOAT: |
2068 | case LTT_ENUM: |
2069 | case LTT_STRING: |
2070 | /* nothing to do */ |
2071 | break; |
2072 | case LTT_ARRAY: |
2073 | /* note this : array type size is the number of elements in the array, |
2074 | * while array field size of the length of the array in bytes */ |
2075 | g_assert(type->fields->len == 1); |
2076 | { |
2077 | LttField *child = &g_array_index(type->fields, LttField, 0); |
743e50fd |
2078 | field_compute_static_size(fac, child); |
f104d082 |
2079 | |
2080 | if(child->field_size != 0) { |
2081 | field->field_size = type->size * child->field_size; |
2082 | field->dynamic_offsets = g_array_sized_new(FALSE, TRUE, |
2083 | sizeof(off_t), type->size); |
2084 | } else { |
2085 | field->field_size = 0; |
2086 | } |
2087 | } |
2088 | break; |
2089 | case LTT_SEQUENCE: |
2090 | g_assert(type->fields->len == 2); |
2091 | { |
2312de30 |
2092 | off_t local_offset = 0; |
f104d082 |
2093 | LttField *child = &g_array_index(type->fields, LttField, 1); |
743e50fd |
2094 | field_compute_static_size(fac, child); |
f104d082 |
2095 | field->field_size = 0; |
2096 | type->size = 0; |
2097 | if(child->field_size != 0) { |
2098 | field->dynamic_offsets = g_array_sized_new(FALSE, TRUE, |
2099 | sizeof(off_t), SEQUENCE_AVG_ELEMENTS); |
2100 | } |
2101 | } |
2102 | break; |
2103 | case LTT_STRUCT: |
2104 | case LTT_UNION: |
2105 | { |
2106 | guint i; |
2107 | for(i=0;i<type->fields->len;i++) { |
2108 | LttField *child = &g_array_index(type->fields, LttField, i); |
743e50fd |
2109 | field_compute_static_size(fac, child); |
f104d082 |
2110 | if(child->field_size != 0) { |
743e50fd |
2111 | type->size += ltt_align(type->size, get_alignment(child), |
2112 | fac->alignment); |
f104d082 |
2113 | type->size += child->field_size; |
2114 | } else { |
2115 | /* As soon as we find a child with variable size, we have |
2116 | * a variable size */ |
2117 | type->size = 0; |
2118 | break; |
2119 | } |
2120 | } |
2121 | field->field_size = type->size; |
2122 | } |
2123 | break; |
2124 | default: |
2125 | g_error("field_static_size : unknown type"); |
2312de30 |
2126 | } |
f104d082 |
2127 | |
2128 | } |
3c165eaf |
2129 | #endif //0 |
f104d082 |
2130 | |
2131 | |
2132 | /***************************************************************************** |
2133 | *Function name |
2134 | * precompute_fields_offsets : set the precomputable offset of the fields |
2135 | *Input params |
743e50fd |
2136 | * fac : facility |
f104d082 |
2137 | * field : the field |
2138 | * offset : pointer to the current offset, must be incremented |
2139 | * |
2140 | * return : 1 : found a variable length field, stop the processing. |
2141 | * 0 otherwise. |
2142 | ****************************************************************************/ |
2143 | |
3c165eaf |
2144 | #if 0 |
dd3a6d39 |
2145 | gint precompute_fields_offsets(LttFacility *fac, LttField *field, off_t *offset, gint is_compact) |
f104d082 |
2146 | { |
2312de30 |
2147 | LttType *type = &field->field_type; |
dd3a6d39 |
2148 | |
2149 | if(unlikely(is_compact)) { |
2150 | g_assert(field->field_size != 0); |
2151 | /* FIXME THIS IS A HUUUUUGE hack : |
2152 | * offset is between the compact_data field in struct LttEvent |
2153 | * and the address of the field root in the memory map. |
2154 | * ark. Both will stay at the same addresses while the event |
2155 | * is readable, so it's ok. |
2156 | */ |
2157 | field->offset_root = 0; |
2158 | field->fixed_root = FIELD_FIXED; |
2159 | return 0; |
2160 | } |
f104d082 |
2161 | |
2162 | switch(type->type_class) { |
2163 | case LTT_INT_FIXED: |
2164 | case LTT_UINT_FIXED: |
2165 | case LTT_POINTER: |
2166 | case LTT_CHAR: |
2167 | case LTT_UCHAR: |
2168 | case LTT_SHORT: |
2169 | case LTT_USHORT: |
2170 | case LTT_INT: |
2171 | case LTT_UINT: |
2172 | case LTT_LONG: |
2173 | case LTT_ULONG: |
2174 | case LTT_SIZE_T: |
2175 | case LTT_SSIZE_T: |
2176 | case LTT_OFF_T: |
2177 | case LTT_FLOAT: |
2178 | case LTT_ENUM: |
743e50fd |
2179 | g_assert(field->field_size != 0); |
f104d082 |
2180 | /* Align offset on type size */ |
743e50fd |
2181 | *offset += ltt_align(*offset, get_alignment(field), |
2182 | fac->alignment); |
f104d082 |
2183 | /* remember offset */ |
2184 | field->offset_root = *offset; |
2185 | field->fixed_root = FIELD_FIXED; |
2186 | /* Increment offset */ |
2187 | *offset += field->field_size; |
2188 | return 0; |
2189 | break; |
2190 | case LTT_STRING: |
2191 | field->offset_root = *offset; |
2192 | field->fixed_root = FIELD_FIXED; |
2193 | return 1; |
2194 | break; |
2195 | case LTT_ARRAY: |
2196 | g_assert(type->fields->len == 1); |
2197 | { |
2198 | LttField *child = &g_array_index(type->fields, LttField, 0); |
2199 | |
743e50fd |
2200 | *offset += ltt_align(*offset, get_alignment(field), |
2201 | fac->alignment); |
f104d082 |
2202 | |
2203 | /* remember offset */ |
2204 | field->offset_root = *offset; |
2205 | field->array_offset = *offset; |
2206 | field->fixed_root = FIELD_FIXED; |
2207 | |
2208 | /* Let the child be variable */ |
2209 | //precompute_fields_offsets(tf, child, offset); |
2210 | |
2211 | if(field->field_size != 0) { |
2212 | /* Increment offset */ |
2213 | /* field_size is the array size in bytes */ |
2214 | *offset += field->field_size; |
2215 | return 0; |
2216 | } else { |
2217 | return 1; |
2218 | } |
2219 | } |
2220 | break; |
2221 | case LTT_SEQUENCE: |
2222 | g_assert(type->fields->len == 2); |
2223 | { |
2224 | LttField *child; |
2225 | guint ret; |
2226 | |
743e50fd |
2227 | *offset += ltt_align(*offset, get_alignment(field), |
2228 | fac->alignment); |
f104d082 |
2229 | |
2230 | /* remember offset */ |
2231 | field->offset_root = *offset; |
2232 | field->fixed_root = FIELD_FIXED; |
2233 | |
2234 | child = &g_array_index(type->fields, LttField, 0); |
dd3a6d39 |
2235 | ret = precompute_fields_offsets(fac, child, offset, is_compact); |
f104d082 |
2236 | g_assert(ret == 0); /* Seq len cannot have variable len */ |
2237 | |
2238 | child = &g_array_index(type->fields, LttField, 1); |
743e50fd |
2239 | *offset += ltt_align(*offset, get_alignment(child), |
2240 | fac->alignment); |
f104d082 |
2241 | field->array_offset = *offset; |
743e50fd |
2242 | /* Let the child be variable. */ |
2243 | //ret = precompute_fields_offsets(fac, child, offset); |
f104d082 |
2244 | |
2245 | /* Cannot precompute fields offsets of sequence members, and has |
2246 | * variable length. */ |
2247 | return 1; |
2248 | } |
2249 | break; |
2250 | case LTT_STRUCT: |
2251 | { |
2252 | LttField *child; |
2253 | guint i; |
2254 | gint ret=0; |
2255 | |
743e50fd |
2256 | *offset += ltt_align(*offset, get_alignment(field), |
2257 | fac->alignment); |
f104d082 |
2258 | /* remember offset */ |
2259 | field->offset_root = *offset; |
2260 | field->fixed_root = FIELD_FIXED; |
2261 | |
2262 | for(i=0; i< type->fields->len; i++) { |
2263 | child = &g_array_index(type->fields, LttField, i); |
dd3a6d39 |
2264 | ret = precompute_fields_offsets(fac, child, offset, is_compact); |
f104d082 |
2265 | |
2266 | if(ret) break; |
2267 | } |
2268 | return ret; |
2269 | } |
2270 | break; |
2271 | case LTT_UNION: |
2272 | { |
2273 | LttField *child; |
2274 | guint i; |
2275 | gint ret=0; |
2276 | |
743e50fd |
2277 | *offset += ltt_align(*offset, get_alignment(field), |
2278 | fac->alignment); |
f104d082 |
2279 | /* remember offset */ |
2280 | field->offset_root = *offset; |
2281 | field->fixed_root = FIELD_FIXED; |
2282 | |
2283 | for(i=0; i< type->fields->len; i++) { |
2284 | *offset = field->offset_root; |
2285 | child = &g_array_index(type->fields, LttField, i); |
dd3a6d39 |
2286 | ret = precompute_fields_offsets(fac, child, offset, is_compact); |
f104d082 |
2287 | |
2288 | if(ret) break; |
2289 | } |
2290 | *offset = field->offset_root + field->field_size; |
2291 | return ret; |
2292 | } |
2293 | |
2294 | break; |
2295 | case LTT_NONE: |
2296 | default: |
2297 | g_error("precompute_fields_offsets : unknown type"); |
2298 | return 1; |
2299 | } |
2300 | |
2301 | } |
2302 | |
3c165eaf |
2303 | #endif //0 |
f104d082 |
2304 | |
3c165eaf |
2305 | #if 0 |
f104d082 |
2306 | /***************************************************************************** |
2307 | *Function name |
2308 | * precompute_offsets : set the precomputable offset of an event type |
2309 | *Input params |
2310 | * tf : tracefile |
2311 | * event : event type |
2312 | * |
2313 | ****************************************************************************/ |
743e50fd |
2314 | void precompute_offsets(LttFacility *fac, LttEventType *event) |
f104d082 |
2315 | { |
2316 | guint i; |
2317 | off_t offset = 0; |
2318 | gint ret; |
2319 | |
2320 | /* First, compute the size of fixed size fields. Will determine size for |
2321 | * arrays, struct and unions, which is not done by the parser */ |
2322 | for(i=0; i<event->fields->len; i++) { |
2323 | LttField *field = &g_array_index(event->fields, LttField, i); |
743e50fd |
2324 | field_compute_static_size(fac, field); |
f104d082 |
2325 | } |
2326 | |
2327 | /* Precompute all known offsets */ |
2328 | for(i=0; i<event->fields->len; i++) { |
2329 | LttField *field = &g_array_index(event->fields, LttField, i); |
dd3a6d39 |
2330 | if(event->has_compact_data && i == 0) |
2331 | ret = precompute_fields_offsets(fac, field, &offset, 1); |
2332 | else |
2333 | ret = precompute_fields_offsets(fac, field, &offset, 0); |
f104d082 |
2334 | if(ret) break; |
2335 | } |
2336 | } |
3c165eaf |
2337 | #endif //0 |
f104d082 |
2338 | |
e4eced0f |
2339 | |
bbf28e50 |
2340 | |
3aee1200 |
2341 | /***************************************************************************** |
2342 | *Function name |
2343 | * preset_field_type_size : set the fixed sizes of the field type |
2344 | *Input params |
2345 | * tf : tracefile |
2346 | * event_type : event type |
2347 | * offset_root : offset from the root |
2348 | * offset_parent : offset from the parent |
2349 | * fixed_root : Do we know a fixed offset to the root ? |
2350 | * fixed_parent : Do we know a fixed offset to the parent ? |
2351 | * field : field |
2352 | ****************************************************************************/ |
f104d082 |
2353 | |
2354 | |
2355 | |
2356 | // preset the fixed size offsets. Calculate them just like genevent-new : an |
2357 | // increment of a *to value that represents the offset from the start of the |
2358 | // event data. |
2359 | // The preset information is : offsets up to (and including) the first element |
2360 | // of variable size. All subsequent fields must be flagged "VARIABLE OFFSET". |
2361 | #if 0 |
3aee1200 |
2362 | void preset_field_type_size(LttTracefile *tf, LttEventType *event_type, |
2363 | off_t offset_root, off_t offset_parent, |
2364 | enum field_status *fixed_root, enum field_status *fixed_parent, |
2365 | LttField *field) |
2366 | { |
2367 | enum field_status local_fixed_root, local_fixed_parent; |
2368 | guint i; |
2369 | LttType *type; |
dfb73233 |
2370 | |
3aee1200 |
2371 | g_assert(field->fixed_root == FIELD_UNKNOWN); |
2372 | g_assert(field->fixed_parent == FIELD_UNKNOWN); |
2373 | g_assert(field->fixed_size == FIELD_UNKNOWN); |
dfb73233 |
2374 | |
3aee1200 |
2375 | type = field->field_type; |
2376 | |
2377 | field->fixed_root = *fixed_root; |
2378 | if(field->fixed_root == FIELD_FIXED) |
2379 | field->offset_root = offset_root; |
2380 | else |
2381 | field->offset_root = 0; |
2382 | |
2383 | field->fixed_parent = *fixed_parent; |
2384 | if(field->fixed_parent == FIELD_FIXED) |
2385 | field->offset_parent = offset_parent; |
2386 | else |
2387 | field->offset_parent = 0; |
2388 | |
2389 | size_t current_root_offset; |
2390 | size_t current_offset; |
2391 | enum field_status current_child_status, final_child_status; |
2392 | size_t max_size; |
2393 | |
2394 | switch(type->type_class) { |
83e160f2 |
2395 | case LTT_INT_FIXED: |
2396 | case LTT_UINT_FIXED: |
2397 | case LTT_CHAR: |
2398 | case LTT_UCHAR: |
2399 | case LTT_SHORT: |
2400 | case LTT_USHORT: |
3aee1200 |
2401 | case LTT_INT: |
2402 | case LTT_UINT: |
2403 | case LTT_FLOAT: |
2404 | case LTT_ENUM: |
2405 | field->field_size = ltt_type_size(tf->trace, type); |
2406 | field->fixed_size = FIELD_FIXED; |
2407 | break; |
2408 | case LTT_POINTER: |
2409 | field->field_size = (off_t)event_type->facility->pointer_size; |
2410 | field->fixed_size = FIELD_FIXED; |
2411 | break; |
2412 | case LTT_LONG: |
2413 | case LTT_ULONG: |
cb03932a |
2414 | field->field_size = (off_t)event_type->facility->long_size; |
3aee1200 |
2415 | field->fixed_size = FIELD_FIXED; |
2416 | break; |
2417 | case LTT_SIZE_T: |
2418 | case LTT_SSIZE_T: |
2419 | case LTT_OFF_T: |
2420 | field->field_size = (off_t)event_type->facility->size_t_size; |
2421 | field->fixed_size = FIELD_FIXED; |
2422 | break; |
2423 | case LTT_SEQUENCE: |
2424 | local_fixed_root = FIELD_VARIABLE; |
2425 | local_fixed_parent = FIELD_VARIABLE; |
2426 | preset_field_type_size(tf, event_type, |
2427 | 0, 0, |
2428 | &local_fixed_root, &local_fixed_parent, |
2429 | field->child[0]); |
2430 | field->fixed_size = FIELD_VARIABLE; |
2431 | field->field_size = 0; |
27304273 |
2432 | *fixed_root = FIELD_VARIABLE; |
2433 | *fixed_parent = FIELD_VARIABLE; |
3aee1200 |
2434 | break; |
2435 | case LTT_STRING: |
2436 | field->fixed_size = FIELD_VARIABLE; |
2437 | field->field_size = 0; |
27304273 |
2438 | *fixed_root = FIELD_VARIABLE; |
2439 | *fixed_parent = FIELD_VARIABLE; |
3aee1200 |
2440 | break; |
2441 | case LTT_ARRAY: |
2442 | local_fixed_root = FIELD_VARIABLE; |
2443 | local_fixed_parent = FIELD_VARIABLE; |
2444 | preset_field_type_size(tf, event_type, |
2445 | 0, 0, |
2446 | &local_fixed_root, &local_fixed_parent, |
2447 | field->child[0]); |
2448 | field->fixed_size = field->child[0]->fixed_size; |
27304273 |
2449 | if(field->fixed_size == FIELD_FIXED) { |
3aee1200 |
2450 | field->field_size = type->element_number * field->child[0]->field_size; |
27304273 |
2451 | } else { |
3aee1200 |
2452 | field->field_size = 0; |
27304273 |
2453 | *fixed_root = FIELD_VARIABLE; |
2454 | *fixed_parent = FIELD_VARIABLE; |
2455 | } |
3aee1200 |
2456 | break; |
2457 | case LTT_STRUCT: |
2458 | current_root_offset = field->offset_root; |
2459 | current_offset = 0; |
2460 | current_child_status = FIELD_FIXED; |
2461 | for(i=0;i<type->element_number;i++) { |
2462 | preset_field_type_size(tf, event_type, |
2463 | current_root_offset, current_offset, |
2464 | fixed_root, ¤t_child_status, |
2465 | field->child[i]); |
2466 | if(current_child_status == FIELD_FIXED) { |
2467 | current_root_offset += field->child[i]->field_size; |
2468 | current_offset += field->child[i]->field_size; |
2469 | } else { |
2470 | current_root_offset = 0; |
2471 | current_offset = 0; |
2472 | } |
2473 | } |
2474 | if(current_child_status != FIELD_FIXED) { |
2475 | *fixed_parent = current_child_status; |
2476 | field->field_size = 0; |
2477 | field->fixed_size = current_child_status; |
2478 | } else { |
2479 | field->field_size = current_offset; |
2480 | field->fixed_size = FIELD_FIXED; |
2481 | } |
2482 | break; |
2483 | case LTT_UNION: |
2484 | current_root_offset = field->offset_root; |
2485 | current_offset = 0; |
2486 | max_size = 0; |
2487 | final_child_status = FIELD_FIXED; |
2488 | for(i=0;i<type->element_number;i++) { |
2489 | enum field_status current_root_child_status = FIELD_FIXED; |
2490 | enum field_status current_child_status = FIELD_FIXED; |
2491 | preset_field_type_size(tf, event_type, |
2492 | current_root_offset, current_offset, |
2493 | ¤t_root_child_status, ¤t_child_status, |
2494 | field->child[i]); |
2495 | if(current_child_status != FIELD_FIXED) |
2496 | final_child_status = current_child_status; |
2497 | else |
2498 | max_size = max(max_size, field->child[i]->field_size); |
2499 | } |
2500 | if(final_child_status != FIELD_FIXED) { |
62e4e7bf |
2501 | g_error("LTTV does not support variable size fields in unions."); |
2502 | /* This will stop the application. */ |
3aee1200 |
2503 | *fixed_root = final_child_status; |
2504 | *fixed_parent = final_child_status; |
2505 | field->field_size = 0; |
2506 | field->fixed_size = current_child_status; |
2507 | } else { |
2508 | field->field_size = max_size; |
2509 | field->fixed_size = FIELD_FIXED; |
2510 | } |
2511 | break; |
83e160f2 |
2512 | case LTT_NONE: |
2513 | g_error("unexpected type NONE"); |
2514 | break; |
dfb73233 |
2515 | } |
2516 | |
6cd62ccf |
2517 | } |
f104d082 |
2518 | #endif //0 |
3aee1200 |
2519 | |
77175651 |
2520 | /***************************************************************************** |
2521 | *Function name |
2522 | * check_fields_compatibility : Check for compatibility between two fields : |
2523 | * do they use the same inner structure ? |
2524 | *Input params |
2525 | * event_type1 : event type |
2526 | * event_type2 : event type |
2527 | * field1 : field |
2528 | * field2 : field |
2529 | *Returns : 0 if identical |
2530 | * 1 if not. |
2531 | ****************************************************************************/ |
f104d082 |
2532 | // this function checks for equality of field types. Therefore, it does not use |
2533 | // per se offsets. For instance, an aligned version of a structure is |
2534 | // compatible with an unaligned version of the same structure. |
3c165eaf |
2535 | #if 0 |
f104d082 |
2536 | gint check_fields_compatibility(LttEventType *event_type1, |
2537 | LttEventType *event_type2, |
2538 | LttField *field1, LttField *field2) |
2539 | { |
2540 | guint different = 0; |
2312de30 |
2541 | LttType *type1; |
2542 | LttType *type2; |
f104d082 |
2543 | |
2544 | if(field1 == NULL) { |
2545 | if(field2 == NULL) goto end; |
2546 | else { |
2547 | different = 1; |
2548 | goto end; |
2549 | } |
2550 | } else if(field2 == NULL) { |
2551 | different = 1; |
2552 | goto end; |
2553 | } |
2554 | |
2312de30 |
2555 | type1 = &field1->field_type; |
2556 | type2 = &field2->field_type; |
f104d082 |
2557 | |
2558 | if(type1->type_class != type2->type_class) { |
2559 | different = 1; |
2560 | goto end; |
2561 | } |
62e4e7bf |
2562 | if(type1->network != type2->network) { |
2563 | different = 1; |
2564 | goto end; |
2565 | } |
f104d082 |
2566 | |
2567 | switch(type1->type_class) { |
2568 | case LTT_INT_FIXED: |
2569 | case LTT_UINT_FIXED: |
2570 | case LTT_POINTER: |
2571 | case LTT_CHAR: |
2572 | case LTT_UCHAR: |
2573 | case LTT_SHORT: |
2574 | case LTT_USHORT: |
2575 | case LTT_INT: |
2576 | case LTT_UINT: |
2577 | case LTT_LONG: |
2578 | case LTT_ULONG: |
2579 | case LTT_SIZE_T: |
2580 | case LTT_SSIZE_T: |
2581 | case LTT_OFF_T: |
2582 | case LTT_FLOAT: |
2583 | case LTT_ENUM: |
2584 | if(field1->field_size != field2->field_size) |
2585 | different = 1; |
2586 | break; |
2587 | case LTT_STRING: |
2588 | break; |
2589 | case LTT_ARRAY: |
2590 | { |
2591 | LttField *child1 = &g_array_index(type1->fields, LttField, 0); |
2592 | LttField *child2 = &g_array_index(type2->fields, LttField, 0); |
2593 | |
2594 | if(type1->size != type2->size) |
2595 | different = 1; |
2596 | if(check_fields_compatibility(event_type1, event_type2, child1, child2)) |
2597 | different = 1; |
2598 | } |
2599 | break; |
2600 | case LTT_SEQUENCE: |
2601 | { |
2602 | LttField *child1 = &g_array_index(type1->fields, LttField, 1); |
2603 | LttField *child2 = &g_array_index(type2->fields, LttField, 1); |
2604 | |
2605 | if(check_fields_compatibility(event_type1, event_type2, child1, child2)) |
2606 | different = 1; |
2607 | } |
2608 | break; |
2609 | case LTT_STRUCT: |
2610 | case LTT_UNION: |
2611 | { |
2612 | LttField *child; |
2613 | guint i; |
2614 | |
2615 | if(type1->fields->len != type2->fields->len) { |
2616 | different = 1; |
2617 | goto end; |
2618 | } |
2619 | |
2620 | for(i=0; i< type1->fields->len; i++) { |
2312de30 |
2621 | LttField *child1; |
2622 | LttField *child2; |
f104d082 |
2623 | child1 = &g_array_index(type1->fields, LttField, i); |
2624 | child2 = &g_array_index(type2->fields, LttField, i); |
2625 | different = check_fields_compatibility(event_type1, |
2626 | event_type2, child1, child2); |
2627 | |
2628 | if(different) break; |
2629 | } |
2630 | } |
2631 | break; |
2632 | case LTT_NONE: |
2633 | default: |
dd3a6d39 |
2634 | g_error("check_fields_compatibility : unknown type"); |
f104d082 |
2635 | } |
2636 | |
2637 | end: |
2638 | return different; |
2639 | } |
3c165eaf |
2640 | #endif //0 |
f104d082 |
2641 | |
2642 | #if 0 |
77175651 |
2643 | gint check_fields_compatibility(LttEventType *event_type1, |
2644 | LttEventType *event_type2, |
2645 | LttField *field1, LttField *field2) |
2646 | { |
2647 | guint different = 0; |
77175651 |
2648 | guint i; |
2649 | LttType *type1; |
2650 | LttType *type2; |
2651 | |
2652 | if(field1 == NULL) { |
2653 | if(field2 == NULL) goto end; |
2654 | else { |
2655 | different = 1; |
2656 | goto end; |
2657 | } |
2658 | } else if(field2 == NULL) { |
2659 | different = 1; |
2660 | goto end; |
2661 | } |
2662 | |
2663 | g_assert(field1->fixed_root != FIELD_UNKNOWN); |
2664 | g_assert(field2->fixed_root != FIELD_UNKNOWN); |
2665 | g_assert(field1->fixed_parent != FIELD_UNKNOWN); |
2666 | g_assert(field2->fixed_parent != FIELD_UNKNOWN); |
2667 | g_assert(field1->fixed_size != FIELD_UNKNOWN); |
2668 | g_assert(field2->fixed_size != FIELD_UNKNOWN); |
2669 | |
2670 | type1 = field1->field_type; |
2671 | type2 = field2->field_type; |
2672 | |
77175651 |
2673 | if(type1->type_class != type2->type_class) { |
2674 | different = 1; |
2675 | goto end; |
2676 | } |
2677 | if(type1->element_name != type2->element_name) { |
2678 | different = 1; |
2679 | goto end; |
2680 | } |
2681 | |
2682 | switch(type1->type_class) { |
83e160f2 |
2683 | case LTT_INT_FIXED: |
2684 | case LTT_UINT_FIXED: |
2685 | case LTT_POINTER: |
2686 | case LTT_CHAR: |
2687 | case LTT_UCHAR: |
2688 | case LTT_SHORT: |
2689 | case LTT_USHORT: |
77175651 |
2690 | case LTT_INT: |
2691 | case LTT_UINT: |
2692 | case LTT_FLOAT: |
2693 | case LTT_POINTER: |
2694 | case LTT_LONG: |
2695 | case LTT_ULONG: |
2696 | case LTT_SIZE_T: |
2697 | case LTT_SSIZE_T: |
2698 | case LTT_OFF_T: |
2699 | if(field1->field_size != field2->field_size) { |
2700 | different = 1; |
2701 | goto end; |
2702 | } |
2703 | break; |
2704 | case LTT_ENUM: |
2705 | if(type1->element_number != type2->element_number) { |
2706 | different = 1; |
2707 | goto end; |
2708 | } |
2709 | for(i=0;i<type1->element_number;i++) { |
2710 | if(type1->enum_strings[i] != type2->enum_strings[i]) { |
2711 | different = 1; |
2712 | goto end; |
2713 | } |
2714 | } |
2715 | break; |
2716 | case LTT_SEQUENCE: |
2717 | /* Two elements : size and child */ |
2718 | g_assert(type1->element_number != type2->element_number); |
2719 | for(i=0;i<type1->element_number;i++) { |
2720 | if(check_fields_compatibility(event_type1, event_type2, |
2721 | field1->child[0], field2->child[0])) { |
2722 | different = 1; |
2723 | goto end; |
2724 | } |
2725 | } |
2726 | break; |
2727 | case LTT_STRING: |
2728 | break; |
2729 | case LTT_ARRAY: |
2730 | if(field1->field_size != field2->field_size) { |
2731 | different = 1; |
2732 | goto end; |
2733 | } |
2734 | /* Two elements : size and child */ |
2735 | g_assert(type1->element_number != type2->element_number); |
2736 | for(i=0;i<type1->element_number;i++) { |
2737 | if(check_fields_compatibility(event_type1, event_type2, |
2738 | field1->child[0], field2->child[0])) { |
2739 | different = 1; |
2740 | goto end; |
2741 | } |
2742 | } |
2743 | break; |
2744 | case LTT_STRUCT: |
2745 | case LTT_UNION: |
2746 | if(type1->element_number != type2->element_number) { |
2747 | different = 1; |
2748 | break; |
2749 | } |
2750 | for(i=0;i<type1->element_number;i++) { |
2751 | if(check_fields_compatibility(event_type1, event_type2, |
2752 | field1->child[0], field2->child[0])) { |
2753 | different = 1; |
2754 | goto end; |
2755 | } |
2756 | } |
2757 | break; |
2758 | } |
2759 | end: |
2760 | return different; |
2761 | } |
3aee1200 |
2762 | #endif //0 |
6cd62ccf |
2763 | |
f104d082 |
2764 | |
6cd62ccf |
2765 | /***************************************************************************** |
2766 | *Function name |
eed2ef37 |
2767 | * ltt_get_int : get an integer number |
6cd62ccf |
2768 | *Input params |
3aee1200 |
2769 | * reverse_byte_order: must we reverse the byte order ? |
6cd62ccf |
2770 | * size : the size of the integer |
3aee1200 |
2771 | * ptr : the data pointer |
6cd62ccf |
2772 | *Return value |
cf74a6f1 |
2773 | * gint64 : a 64 bits integer |
6cd62ccf |
2774 | ****************************************************************************/ |
2775 | |
eed2ef37 |
2776 | gint64 ltt_get_int(gboolean reverse_byte_order, gint size, void *data) |
6cd62ccf |
2777 | { |
3aee1200 |
2778 | gint64 val; |
cf74a6f1 |
2779 | |
2780 | switch(size) { |
3aee1200 |
2781 | case 1: val = *((gint8*)data); break; |
2782 | case 2: val = ltt_get_int16(reverse_byte_order, data); break; |
2783 | case 4: val = ltt_get_int32(reverse_byte_order, data); break; |
2784 | case 8: val = ltt_get_int64(reverse_byte_order, data); break; |
2785 | default: val = ltt_get_int64(reverse_byte_order, data); |
2786 | g_critical("get_int : integer size %d unknown", size); |
cf74a6f1 |
2787 | break; |
2788 | } |
2789 | |
3aee1200 |
2790 | return val; |
6cd62ccf |
2791 | } |
3aee1200 |
2792 | |
6cd62ccf |
2793 | /***************************************************************************** |
2794 | *Function name |
eed2ef37 |
2795 | * ltt_get_uint : get an unsigned integer number |
6cd62ccf |
2796 | *Input params |
3aee1200 |
2797 | * reverse_byte_order: must we reverse the byte order ? |
2798 | * size : the size of the integer |
2799 | * ptr : the data pointer |
2800 | *Return value |
2801 | * guint64 : a 64 bits unsigned integer |
6cd62ccf |
2802 | ****************************************************************************/ |
2803 | |
eed2ef37 |
2804 | guint64 ltt_get_uint(gboolean reverse_byte_order, gint size, void *data) |
6cd62ccf |
2805 | { |
3aee1200 |
2806 | guint64 val; |
2807 | |
2808 | switch(size) { |
2809 | case 1: val = *((gint8*)data); break; |
2810 | case 2: val = ltt_get_uint16(reverse_byte_order, data); break; |
2811 | case 4: val = ltt_get_uint32(reverse_byte_order, data); break; |
2812 | case 8: val = ltt_get_uint64(reverse_byte_order, data); break; |
2813 | default: val = ltt_get_uint64(reverse_byte_order, data); |
2814 | g_critical("get_uint : unsigned integer size %d unknown", |
2815 | size); |
2816 | break; |
2817 | } |
2818 | |
2819 | return val; |
6cd62ccf |
2820 | } |
3aee1200 |
2821 | |
2822 | |
a5dcde2f |
2823 | /* get the node name of the system */ |
2824 | |
2825 | char * ltt_trace_system_description_node_name (LttSystemDescription * s) |
2826 | { |
2827 | return s->node_name; |
2828 | } |
2829 | |
2830 | |
2831 | /* get the domain name of the system */ |
2832 | |
2833 | char * ltt_trace_system_description_domain_name (LttSystemDescription * s) |
2834 | { |
2835 | return s->domain_name; |
2836 | } |
2837 | |
2838 | |
2839 | /* get the description of the system */ |
2840 | |
2841 | char * ltt_trace_system_description_description (LttSystemDescription * s) |
2842 | { |
2843 | return s->description; |
2844 | } |
2845 | |
2846 | |
bf33dd50 |
2847 | /* get the NTP corrected start time of the trace */ |
7bd563ec |
2848 | LttTime ltt_trace_start_time(LttTrace *t) |
a5dcde2f |
2849 | { |
7bd563ec |
2850 | return t->start_time; |
a5dcde2f |
2851 | } |
2852 | |
bf33dd50 |
2853 | /* get the monotonic start time of the trace */ |
2854 | LttTime ltt_trace_start_time_monotonic(LttTrace *t) |
2855 | { |
2856 | return t->start_time_from_tsc; |
2857 | } |
2858 | |
8655430b |
2859 | static LttTracefile *ltt_tracefile_new() |
18206708 |
2860 | { |
afd57a3c |
2861 | LttTracefile *tf; |
2862 | tf = g_new(LttTracefile, 1); |
2863 | tf->event.tracefile = tf; |
2864 | return tf; |
18206708 |
2865 | } |
2866 | |
8655430b |
2867 | static void ltt_tracefile_destroy(LttTracefile *tf) |
18206708 |
2868 | { |
2869 | g_free(tf); |
2870 | } |
2871 | |
8655430b |
2872 | static void ltt_tracefile_copy(LttTracefile *dest, const LttTracefile *src) |
18206708 |
2873 | { |
2874 | *dest = *src; |
2875 | } |
2876 | |
3aee1200 |
2877 | /* Before library loading... */ |
2878 | |
8655430b |
2879 | static __attribute__((constructor)) void init(void) |
3aee1200 |
2880 | { |
2881 | LTT_FACILITY_NAME_HEARTBEAT = g_quark_from_string("heartbeat"); |
2882 | LTT_EVENT_NAME_HEARTBEAT = g_quark_from_string("heartbeat"); |
d1bb700c |
2883 | LTT_EVENT_NAME_HEARTBEAT_FULL = g_quark_from_string("heartbeat_full"); |
3aee1200 |
2884 | |
3865ea09 |
2885 | LTT_TRACEFILE_NAME_FACILITIES = g_quark_from_string("/control/facilities"); |
3aee1200 |
2886 | } |