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 | |
963b5f2d |
952 | |
3aee1200 |
953 | LttTrace *ltt_trace_open(const gchar *pathname) |
954 | { |
955 | gchar abs_path[PATH_MAX]; |
956 | LttTrace * t; |
957 | LttTracefile *tf; |
958 | GArray *group; |
b56dcdf2 |
959 | int i, ret; |
16fcbb80 |
960 | struct ltt_block_start_header *header; |
62e4e7bf |
961 | DIR *dir; |
962 | struct dirent *entry; |
b56dcdf2 |
963 | guint control_found = 0; |
62e4e7bf |
964 | struct stat stat_buf; |
b56dcdf2 |
965 | gchar path[PATH_MAX]; |
3aee1200 |
966 | |
967 | t = g_new(LttTrace, 1); |
968 | if(!t) goto alloc_error; |
969 | |
970 | get_absolute_pathname(pathname, abs_path); |
971 | t->pathname = g_quark_from_string(abs_path); |
972 | |
3aee1200 |
973 | g_datalist_init(&t->tracefiles); |
b56dcdf2 |
974 | |
975 | /* Test to see if it looks like a trace */ |
62e4e7bf |
976 | dir = opendir(abs_path); |
977 | if(dir == NULL) { |
978 | perror(abs_path); |
979 | goto open_error; |
980 | } |
981 | while((entry = readdir(dir)) != NULL) { |
b56dcdf2 |
982 | strcpy(path, abs_path); |
983 | strcat(path, "/"); |
984 | strcat(path, entry->d_name); |
62e4e7bf |
985 | ret = stat(path, &stat_buf); |
986 | if(ret == -1) { |
987 | perror(path); |
988 | continue; |
989 | } |
990 | if(S_ISDIR(stat_buf.st_mode)) { |
b56dcdf2 |
991 | if(strcmp(entry->d_name, "control") == 0) { |
992 | control_found = 1; |
993 | } |
b56dcdf2 |
994 | } |
995 | } |
996 | closedir(dir); |
997 | |
fe452434 |
998 | if(!control_found) goto find_error; |
b56dcdf2 |
999 | |
1000 | /* Open all the tracefiles */ |
e45551ac |
1001 | if(open_tracefiles(t, abs_path, "")) { |
1002 | g_warning("Error opening tracefile %s", abs_path); |
b56dcdf2 |
1003 | goto find_error; |
e45551ac |
1004 | } |
3aee1200 |
1005 | |
3aee1200 |
1006 | /* Parse each trace control/facilitiesN files : get runtime fac. info */ |
1007 | group = g_datalist_id_get_data(&t->tracefiles, LTT_TRACEFILE_NAME_FACILITIES); |
1008 | if(group == NULL) { |
1009 | g_error("Trace %s has no facility tracefile", abs_path); |
3865ea09 |
1010 | g_assert(0); |
3aee1200 |
1011 | goto facilities_error; |
1012 | } |
1013 | |
16fcbb80 |
1014 | /* Get the trace information for the control/facility 0 tracefile */ |
1015 | g_assert(group->len > 0); |
1016 | tf = &g_array_index (group, LttTracefile, 0); |
1017 | header = (struct ltt_block_start_header*)tf->buffer.head; |
51551c6f |
1018 | g_assert(parse_trace_header(header->trace, |
1019 | tf, t) == 0); |
b56dcdf2 |
1020 | |
1021 | t->num_cpu = group->len; |
16fcbb80 |
1022 | |
d79909d1 |
1023 | ret = allocate_marker_data(t); |
b44ba972 |
1024 | if (ret) |
d79909d1 |
1025 | g_error("Error in allocating marker data"); |
1026 | |
3aee1200 |
1027 | for(i=0; i<group->len; i++) { |
1028 | tf = &g_array_index (group, LttTracefile, i); |
1029 | if(ltt_process_facility_tracefile(tf)) |
1030 | goto facilities_error; |
1031 | } |
dd3a6d39 |
1032 | |
3aee1200 |
1033 | return t; |
1034 | |
1035 | /* Error handling */ |
1036 | facilities_error: |
d79909d1 |
1037 | destroy_marker_data(t); |
b56dcdf2 |
1038 | find_error: |
3aee1200 |
1039 | g_datalist_clear(&t->tracefiles); |
b56dcdf2 |
1040 | open_error: |
3aee1200 |
1041 | g_free(t); |
1042 | alloc_error: |
1043 | return NULL; |
1044 | |
1045 | } |
6cd62ccf |
1046 | |
3aee1200 |
1047 | /****************************************************************************** |
1048 | * When we copy a trace, we want all the opening actions to happen again : |
1049 | * the trace will be reopened and totally independant from the original. |
1050 | * That's why we call ltt_trace_open. |
1051 | *****************************************************************************/ |
1052 | LttTrace *ltt_trace_copy(LttTrace *self) |
963b5f2d |
1053 | { |
3aee1200 |
1054 | return ltt_trace_open(g_quark_to_string(self->pathname)); |
963b5f2d |
1055 | } |
1056 | |
3aee1200 |
1057 | void ltt_trace_close(LttTrace *t) |
6cd62ccf |
1058 | { |
3aee1200 |
1059 | g_datalist_clear(&t->tracefiles); |
1060 | g_free(t); |
6cd62ccf |
1061 | } |
1062 | |
3aee1200 |
1063 | |
6cd62ccf |
1064 | /***************************************************************************** |
3aee1200 |
1065 | * Get the start time and end time of the trace |
6cd62ccf |
1066 | ****************************************************************************/ |
1067 | |
3c165eaf |
1068 | void ltt_tracefile_time_span_get(LttTracefile *tf, |
3aee1200 |
1069 | LttTime *start, LttTime *end) |
6cd62ccf |
1070 | { |
3aee1200 |
1071 | int err; |
6cd62ccf |
1072 | |
3aee1200 |
1073 | err = map_block(tf, 0); |
1074 | if(unlikely(err)) { |
1075 | g_error("Can not map block"); |
1076 | *start = ltt_time_infinite; |
1077 | } else |
1078 | *start = tf->buffer.begin.timestamp; |
1079 | |
1080 | err = map_block(tf, tf->num_blocks - 1); /* Last block */ |
1081 | if(unlikely(err)) { |
1082 | g_error("Can not map block"); |
1083 | *end = ltt_time_zero; |
1084 | } else |
1085 | *end = tf->buffer.end.timestamp; |
6cd62ccf |
1086 | } |
1087 | |
3aee1200 |
1088 | struct tracefile_time_span_get_args { |
1089 | LttTrace *t; |
1090 | LttTime *start; |
1091 | LttTime *end; |
1092 | }; |
963b5f2d |
1093 | |
8655430b |
1094 | static void group_time_span_get(GQuark name, gpointer data, gpointer user_data) |
963b5f2d |
1095 | { |
3aee1200 |
1096 | struct tracefile_time_span_get_args *args = |
1097 | (struct tracefile_time_span_get_args*)user_data; |
1098 | |
1099 | GArray *group = (GArray *)data; |
1100 | int i; |
1101 | LttTracefile *tf; |
1102 | LttTime tmp_start; |
1103 | LttTime tmp_end; |
1104 | |
1105 | for(i=0; i<group->len; i++) { |
1106 | tf = &g_array_index (group, LttTracefile, i); |
1107 | if(tf->cpu_online) { |
1108 | ltt_tracefile_time_span_get(tf, &tmp_start, &tmp_end); |
1109 | if(ltt_time_compare(*args->start, tmp_start)>0) *args->start = tmp_start; |
1110 | if(ltt_time_compare(*args->end, tmp_end)<0) *args->end = tmp_end; |
1111 | } |
1112 | } |
6cd62ccf |
1113 | } |
1114 | |
8655430b |
1115 | /* return the start and end time of a trace */ |
1116 | |
487ad181 |
1117 | void ltt_trace_time_span_get(LttTrace *t, LttTime *start, LttTime *end) |
1118 | { |
3aee1200 |
1119 | LttTime min_start = ltt_time_infinite; |
1120 | LttTime max_end = ltt_time_zero; |
1121 | struct tracefile_time_span_get_args args = { t, &min_start, &max_end }; |
487ad181 |
1122 | |
3aee1200 |
1123 | g_datalist_foreach(&t->tracefiles, &group_time_span_get, &args); |
1124 | |
1125 | if(start != NULL) *start = min_start; |
1126 | if(end != NULL) *end = max_end; |
1127 | |
487ad181 |
1128 | } |
1129 | |
1130 | |
3aee1200 |
1131 | /* Seek to the first event in a tracefile that has a time equal or greater than |
1132 | * the time passed in parameter. |
1133 | * |
1134 | * If the time parameter is outside the tracefile time span, seek to the first |
27304273 |
1135 | * event or if after, return ERANGE. |
3aee1200 |
1136 | * |
1137 | * If the time parameter is before the first event, we have to seek specially to |
1138 | * there. |
1139 | * |
27304273 |
1140 | * If the time is after the end of the trace, return ERANGE. |
3aee1200 |
1141 | * |
1142 | * Do a binary search to find the right block, then a sequential search in the |
1143 | * block to find the event. |
1144 | * |
1145 | * In the special case where the time requested fits inside a block that has no |
1146 | * event corresponding to the requested time, the first event of the next block |
1147 | * will be seeked. |
1148 | * |
1149 | * IMPORTANT NOTE : // FIXME everywhere... |
1150 | * |
1151 | * You MUST NOT do a ltt_tracefile_read right after a ltt_tracefile_seek_time : |
1152 | * you will jump over an event if you do. |
1153 | * |
1154 | * Return value : 0 : no error, the tf->event can be used |
27304273 |
1155 | * ERANGE : time if after the last event of the trace |
3aee1200 |
1156 | * otherwise : this is an error. |
1157 | * |
1158 | * */ |
1159 | |
1160 | int ltt_tracefile_seek_time(LttTracefile *tf, LttTime time) |
1161 | { |
1162 | int ret = 0; |
1163 | int err; |
1164 | unsigned int block_num, high, low; |
1165 | |
1166 | /* seek at the beginning of trace */ |
1167 | err = map_block(tf, 0); /* First block */ |
1168 | if(unlikely(err)) { |
1169 | g_error("Can not map block"); |
1170 | goto fail; |
caf7a67a |
1171 | } |
1172 | |
3aee1200 |
1173 | /* If the time is lower or equal the beginning of the trace, |
1174 | * go to the first event. */ |
1175 | if(ltt_time_compare(time, tf->buffer.begin.timestamp) <= 0) { |
1176 | ret = ltt_tracefile_read(tf); |
27304273 |
1177 | if(ret == ERANGE) goto range; |
1178 | else if (ret) goto fail; |
3aee1200 |
1179 | goto found; /* There is either no event in the trace or the event points |
1180 | to the first event in the trace */ |
1181 | } |
caf7a67a |
1182 | |
3aee1200 |
1183 | err = map_block(tf, tf->num_blocks - 1); /* Last block */ |
1184 | if(unlikely(err)) { |
1185 | g_error("Can not map block"); |
1186 | goto fail; |
caf7a67a |
1187 | } |
6cd62ccf |
1188 | |
27304273 |
1189 | /* If the time is after the end of the trace, return ERANGE. */ |
1190 | if(ltt_time_compare(time, tf->buffer.end.timestamp) > 0) { |
1191 | goto range; |
3aee1200 |
1192 | } |
62e55dd6 |
1193 | |
3aee1200 |
1194 | /* Binary search the block */ |
1195 | high = tf->num_blocks - 1; |
1196 | low = 0; |
1197 | |
1198 | while(1) { |
1199 | block_num = ((high-low) / 2) + low; |
1200 | |
1201 | err = map_block(tf, block_num); |
1202 | if(unlikely(err)) { |
1203 | g_error("Can not map block"); |
1204 | goto fail; |
db55eaae |
1205 | } |
3aee1200 |
1206 | if(high == low) { |
1207 | /* We cannot divide anymore : this is what would happen if the time |
1208 | * requested was exactly between two consecutive buffers'end and start |
1209 | * timestamps. This is also what would happend if we didn't deal with out |
1210 | * of span cases prior in this function. */ |
1211 | /* The event is right in the buffer! |
1212 | * (or in the next buffer first event) */ |
1213 | while(1) { |
1214 | ret = ltt_tracefile_read(tf); |
27304273 |
1215 | if(ret == ERANGE) goto range; /* ERANGE or EPERM */ |
3aee1200 |
1216 | else if(ret) goto fail; |
1217 | |
d9e13a0f |
1218 | if(ltt_time_compare(time, tf->event.event_time) <= 0) |
e45551ac |
1219 | goto found; |
3aee1200 |
1220 | } |
1221 | |
27304273 |
1222 | } else if(ltt_time_compare(time, tf->buffer.begin.timestamp) < 0) { |
3aee1200 |
1223 | /* go to lower part */ |
b1369bef |
1224 | high = block_num - 1; |
3aee1200 |
1225 | } else if(ltt_time_compare(time, tf->buffer.end.timestamp) > 0) { |
1226 | /* go to higher part */ |
b1369bef |
1227 | low = block_num + 1; |
3aee1200 |
1228 | } else {/* The event is right in the buffer! |
1229 | (or in the next buffer first event) */ |
1230 | while(1) { |
27304273 |
1231 | ret = ltt_tracefile_read(tf); |
1232 | if(ret == ERANGE) goto range; /* ERANGE or EPERM */ |
3aee1200 |
1233 | else if(ret) goto fail; |
1234 | |
d9e13a0f |
1235 | if(ltt_time_compare(time, tf->event.event_time) <= 0) |
3aee1200 |
1236 | break; |
6cd62ccf |
1237 | } |
3aee1200 |
1238 | goto found; |
6cd62ccf |
1239 | } |
6cd62ccf |
1240 | } |
3aee1200 |
1241 | |
1242 | found: |
1243 | return 0; |
27304273 |
1244 | range: |
1245 | return ERANGE; |
3aee1200 |
1246 | |
1247 | /* Error handling */ |
1248 | fail: |
1249 | g_error("ltt_tracefile_seek_time failed on tracefile %s", |
1250 | g_quark_to_string(tf->name)); |
1251 | return EPERM; |
6cd62ccf |
1252 | } |
1253 | |
80da81ad |
1254 | |
8655430b |
1255 | int ltt_tracefile_seek_position(LttTracefile *tf, const LttEventPosition *ep) |
1256 | { |
3aee1200 |
1257 | int err; |
1258 | |
1259 | if(ep->tracefile != tf) { |
1260 | goto fail; |
80da81ad |
1261 | } |
1262 | |
3aee1200 |
1263 | err = map_block(tf, ep->block); |
1264 | if(unlikely(err)) { |
1265 | g_error("Can not map block"); |
1266 | goto fail; |
1267 | } |
1268 | |
1269 | tf->event.offset = ep->offset; |
18206708 |
1270 | |
62e4e7bf |
1271 | /* Put back the event real tsc */ |
1272 | tf->event.tsc = ep->tsc; |
1273 | tf->buffer.tsc = ep->tsc; |
78f79181 |
1274 | |
3aee1200 |
1275 | err = ltt_tracefile_read_update_event(tf); |
1276 | if(err) goto fail; |
1277 | err = ltt_tracefile_read_op(tf); |
1278 | if(err) goto fail; |
80da81ad |
1279 | |
a0c1f622 |
1280 | return 0; |
3aee1200 |
1281 | |
1282 | fail: |
1283 | g_error("ltt_tracefile_seek_time failed on tracefile %s", |
1284 | g_quark_to_string(tf->name)); |
a0c1f622 |
1285 | return 1; |
3aee1200 |
1286 | } |
1287 | |
ae3d0f50 |
1288 | LttTime ltt_interpolate_time_from_tsc(LttTracefile *tf, guint64 tsc) |
3aee1200 |
1289 | { |
1290 | LttTime time; |
62e4e7bf |
1291 | |
1292 | if(tsc > tf->trace->start_tsc) { |
1293 | time = ltt_time_from_uint64( |
1294 | (double)(tsc - tf->trace->start_tsc) |
1295 | * (1000000000.0 / tf->trace->freq_scale) |
1296 | / (double)tf->trace->start_freq); |
1297 | time = ltt_time_add(tf->trace->start_time_from_tsc, time); |
1298 | } else { |
1299 | time = ltt_time_from_uint64( |
1300 | (double)(tf->trace->start_tsc - tsc) |
1301 | * (1000000000.0 / tf->trace->freq_scale) |
1302 | / (double)tf->trace->start_freq); |
1303 | time = ltt_time_sub(tf->trace->start_time_from_tsc, time); |
1304 | } |
3aee1200 |
1305 | return time; |
80da81ad |
1306 | } |
1307 | |
ae3d0f50 |
1308 | /* Calculate the real event time based on the buffer boundaries */ |
1309 | LttTime ltt_interpolate_time(LttTracefile *tf, LttEvent *event) |
1310 | { |
62e4e7bf |
1311 | return ltt_interpolate_time_from_tsc(tf, tf->buffer.tsc); |
ae3d0f50 |
1312 | } |
1313 | |
eed2ef37 |
1314 | |
1315 | /* Get the current event of the tracefile : valid until the next read */ |
1316 | LttEvent *ltt_tracefile_get_event(LttTracefile *tf) |
1317 | { |
1318 | return &tf->event; |
1319 | } |
1320 | |
1321 | |
1322 | |
6cd62ccf |
1323 | /***************************************************************************** |
1324 | *Function name |
3aee1200 |
1325 | * ltt_tracefile_read : Read the next event in the tracefile |
6cd62ccf |
1326 | *Input params |
1327 | * t : tracefile |
1328 | *Return value |
3aee1200 |
1329 | * |
1330 | * Returns 0 if an event can be used in tf->event. |
d822520b |
1331 | * Returns ERANGE on end of trace. The event in tf->event still can be used |
1332 | * (if the last block was not empty). |
3aee1200 |
1333 | * Returns EPERM on error. |
1334 | * |
1335 | * This function does make the tracefile event structure point to the event |
1336 | * currently pointed to by the tf->event. |
1337 | * |
1338 | * Note : you must call a ltt_tracefile_seek to the beginning of the trace to |
1339 | * reinitialize it after an error if you want results to be coherent. |
1340 | * It would be the case if a end of trace last buffer has no event : the end |
1341 | * of trace wouldn't be returned, but an error. |
1342 | * We make the assumption there is at least one event per buffer. |
6cd62ccf |
1343 | ****************************************************************************/ |
1344 | |
3aee1200 |
1345 | int ltt_tracefile_read(LttTracefile *tf) |
6cd62ccf |
1346 | { |
963b5f2d |
1347 | int err; |
6cd62ccf |
1348 | |
3aee1200 |
1349 | err = ltt_tracefile_read_seek(tf); |
1350 | if(err) return err; |
1351 | err = ltt_tracefile_read_update_event(tf); |
1352 | if(err) return err; |
1353 | err = ltt_tracefile_read_op(tf); |
1354 | if(err) return err; |
1355 | |
1356 | return 0; |
1357 | } |
1358 | |
1359 | int ltt_tracefile_read_seek(LttTracefile *tf) |
1360 | { |
1361 | int err; |
1362 | |
1363 | /* Get next buffer until we finally have an event, or end of trace */ |
1364 | while(1) { |
1365 | err = ltt_seek_next_event(tf); |
1366 | if(unlikely(err == ENOPROTOOPT)) { |
1367 | return EPERM; |
bdc36259 |
1368 | } |
bdc36259 |
1369 | |
3aee1200 |
1370 | /* Are we at the end of the buffer ? */ |
1371 | if(err == ERANGE) { |
1372 | if(unlikely(tf->buffer.index == tf->num_blocks-1)){ /* end of trace ? */ |
1373 | return ERANGE; |
1374 | } else { |
1375 | /* get next block */ |
1376 | err = map_block(tf, tf->buffer.index + 1); |
1377 | if(unlikely(err)) { |
1378 | g_error("Can not map block"); |
1379 | return EPERM; |
1380 | } |
1381 | } |
1382 | } else break; /* We found an event ! */ |
1383 | } |
2dee981d |
1384 | |
3aee1200 |
1385 | return 0; |
1386 | } |
18206708 |
1387 | |
1388 | |
3aee1200 |
1389 | /* do specific operation on events */ |
1390 | int ltt_tracefile_read_op(LttTracefile *tf) |
1391 | { |
3aee1200 |
1392 | LttEvent *event; |
1393 | |
1394 | event = &tf->event; |
18206708 |
1395 | |
3aee1200 |
1396 | /* do event specific operation */ |
40331ba8 |
1397 | |
3aee1200 |
1398 | /* do something if its an heartbeat event : increment the heartbeat count */ |
1399 | //if(event->facility_id == LTT_FACILITY_CORE) |
1400 | // if(event->event_id == LTT_EVENT_HEARTBEAT) |
1401 | // tf->cur_heart_beat_number++; |
1402 | |
1403 | return 0; |
6cd62ccf |
1404 | } |
1405 | |
91f8d488 |
1406 | static void print_debug_event_header(LttEvent *ev, void *start_pos, void *end_pos) |
1407 | { |
1408 | unsigned int offset = 0; |
1409 | int i, j; |
1410 | |
1411 | g_printf("Event header (tracefile %s offset %llx):\n", |
afd57a3c |
1412 | g_quark_to_string(ev->tracefile->long_name), |
91f8d488 |
1413 | ((uint64_t)ev->tracefile->buffer.index * ev->tracefile->buf_size) |
1414 | + (long)start_pos - (long)ev->tracefile->buffer.head); |
1415 | |
1416 | while (offset < (long)end_pos - (long)start_pos) { |
1417 | g_printf("%8lx", (long)start_pos - (long)ev->tracefile->buffer.head + offset); |
1418 | g_printf(" "); |
1419 | |
1420 | for (i = 0; i < 4 ; i++) { |
1421 | for (j = 0; j < 4; j++) { |
1422 | if (offset + ((i * 4) + j) < |
1423 | (long)end_pos - (long)start_pos) |
1424 | g_printf("%02hhX", |
d3353231 |
1425 | ((char*)start_pos)[offset + ((i * 4) + j)]); |
91f8d488 |
1426 | else |
1427 | g_printf(" "); |
1428 | g_printf(" "); |
1429 | } |
1430 | if (i < 4) |
1431 | g_printf(" "); |
1432 | } |
1433 | offset+=16; |
1434 | g_printf("\n"); |
1435 | } |
1436 | } |
1437 | |
6cd62ccf |
1438 | |
3aee1200 |
1439 | /* same as ltt_tracefile_read, but does not seek to the next event nor call |
1440 | * event specific operation. */ |
1441 | int ltt_tracefile_read_update_event(LttTracefile *tf) |
6cd62ccf |
1442 | { |
3aee1200 |
1443 | void * pos; |
1444 | LttEvent *event; |
91f8d488 |
1445 | void *pos_aligned; |
3aee1200 |
1446 | |
1447 | event = &tf->event; |
eed2ef37 |
1448 | pos = tf->buffer.head + event->offset; |
3aee1200 |
1449 | |
1450 | /* Read event header */ |
1451 | |
62e4e7bf |
1452 | /* Align the head */ |
1453 | if(!tf->compact) |
256a5b3a |
1454 | pos += ltt_align((size_t)pos, tf->trace->arch_size, tf->alignment); |
62e4e7bf |
1455 | else { |
1456 | g_assert(tf->has_heartbeat); |
256a5b3a |
1457 | pos += ltt_align((size_t)pos, sizeof(uint32_t), tf->alignment); |
62e4e7bf |
1458 | } |
91f8d488 |
1459 | pos_aligned = pos; |
3aee1200 |
1460 | |
62e4e7bf |
1461 | if(tf->has_heartbeat) { |
1462 | event->timestamp = ltt_get_uint32(LTT_GET_BO(tf), |
1463 | pos); |
d1bb700c |
1464 | if(!tf->compact) { |
1465 | /* 32 bits -> 64 bits tsc */ |
1466 | /* note : still works for seek and non seek cases. */ |
1467 | if(event->timestamp < (0xFFFFFFFFULL&tf->buffer.tsc)) { |
1468 | tf->buffer.tsc = ((tf->buffer.tsc&0xFFFFFFFF00000000ULL) |
1469 | + 0x100000000ULL) |
1470 | | (guint64)event->timestamp; |
1471 | event->tsc = tf->buffer.tsc; |
1472 | } else { |
1473 | /* no overflow */ |
1474 | tf->buffer.tsc = (tf->buffer.tsc&0xFFFFFFFF00000000ULL) |
1475 | | (guint64)event->timestamp; |
1476 | event->tsc = tf->buffer.tsc; |
62e4e7bf |
1477 | event->compact_data = 0; |
d1bb700c |
1478 | } |
1479 | } else { |
1480 | /* Compact header */ |
1481 | /* We keep the LSB of the previous timestamp, to make sure |
1482 | * we never go back */ |
1483 | event->event_id = event->timestamp >> tf->tscbits; |
d3353231 |
1484 | event->event_id = event->event_id & ((1 << tf->compact_event_bits) - 1); |
dd3a6d39 |
1485 | event->compact_data = event->timestamp >> |
d3353231 |
1486 | (tf->compact_event_bits + tf->tscbits); |
dd3a6d39 |
1487 | //printf("tsc bits %u, ev bits %u init data %u\n", |
62e4e7bf |
1488 | // tf->tscbits, tf->trace->compact_event_bits, event->compact_data); |
dd3a6d39 |
1489 | /* Put the compact data back in original endianness */ |
1490 | event->compact_data = ltt_get_uint32(LTT_GET_BO(tf), &event->compact_data); |
d1bb700c |
1491 | event->event_size = 0xFFFF; |
dd3a6d39 |
1492 | //printf("Found compact event %d\n", event->event_id); |
1493 | //printf("Compact data %d\n", event->compact_data); |
d1bb700c |
1494 | event->timestamp = event->timestamp << tf->tsc_lsb_truncate; |
1495 | event->timestamp = event->timestamp & tf->tsc_mask; |
dd3a6d39 |
1496 | //printf("timestamp 0x%lX\n", event->timestamp); |
1497 | //printf("mask 0x%llX\n", tf->tsc_mask); |
1498 | //printf("mask_next 0x%llX\n", tf->tsc_mask_next_bit); |
1499 | //printf("previous tsc 0x%llX\n", tf->buffer.tsc); |
1500 | //printf("previous tsc&mask 0x%llX\n", tf->tsc_mask&tf->buffer.tsc); |
1501 | //printf("previous tsc&(~mask) 0x%llX\n", tf->buffer.tsc&(~tf->tsc_mask)); |
d1bb700c |
1502 | if(event->timestamp < (tf->tsc_mask&tf->buffer.tsc)) { |
dd3a6d39 |
1503 | //printf("wrap\n"); |
d1bb700c |
1504 | tf->buffer.tsc = ((tf->buffer.tsc&(~tf->tsc_mask)) |
1505 | + tf->tsc_mask_next_bit) |
1506 | | (guint64)event->timestamp; |
1507 | event->tsc = tf->buffer.tsc; |
1508 | } else { |
dd3a6d39 |
1509 | //printf("no wrap\n"); |
d1bb700c |
1510 | /* no overflow */ |
1511 | tf->buffer.tsc = (tf->buffer.tsc&(~tf->tsc_mask)) |
1512 | | (guint64)event->timestamp; |
1513 | event->tsc = tf->buffer.tsc; |
1514 | } |
dd3a6d39 |
1515 | //printf("current tsc 0x%llX\n", tf->buffer.tsc); |
d1bb700c |
1516 | } |
62e4e7bf |
1517 | pos += sizeof(guint32); |
1518 | } else { |
1519 | event->tsc = ltt_get_uint64(LTT_GET_BO(tf), pos); |
1520 | tf->buffer.tsc = event->tsc; |
1521 | event->compact_data = 0; |
1522 | pos += sizeof(guint64); |
1523 | } |
1524 | event->event_time = ltt_interpolate_time(tf, event); |
3aee1200 |
1525 | |
d1bb700c |
1526 | if(!tf->compact) { |
f439de06 |
1527 | event->event_id = ltt_get_uint16(LTT_GET_BO(tf), pos); |
3c165eaf |
1528 | pos += sizeof(guint16); |
d1bb700c |
1529 | |
1530 | event->event_size = ltt_get_uint16(LTT_GET_BO(tf), pos); |
1531 | pos += sizeof(guint16); |
1532 | } else { |
1533 | /* Compact event */ |
dcf96842 |
1534 | event->event_size = 0xFFFF; |
d1bb700c |
1535 | } |
91f8d488 |
1536 | |
1537 | if (a_event_debug) |
1538 | print_debug_event_header(event, pos_aligned, pos); |
1539 | |
62e4e7bf |
1540 | /* Align the head */ |
1541 | if(!tf->compact) |
256a5b3a |
1542 | pos += ltt_align((size_t)pos, tf->trace->arch_size, tf->alignment); |
f104d082 |
1543 | |
3aee1200 |
1544 | event->data = pos; |
1545 | |
77175651 |
1546 | /* get the data size and update the event fields with the current |
d1bb700c |
1547 | * information. Also update the time if a heartbeat_full event is found. */ |
eed2ef37 |
1548 | ltt_update_event_size(tf); |
77175651 |
1549 | |
3aee1200 |
1550 | return 0; |
6cd62ccf |
1551 | } |
1552 | |
507915ee |
1553 | |
6cd62ccf |
1554 | /**************************************************************************** |
1555 | *Function name |
3aee1200 |
1556 | * map_block : map a block from the file |
6cd62ccf |
1557 | *Input Params |
1558 | * lttdes : ltt trace file |
1559 | * whichBlock : the block which will be read |
1560 | *return value |
1561 | * 0 : success |
1562 | * EINVAL : lseek fail |
1563 | * EIO : can not read from the file |
1564 | ****************************************************************************/ |
1565 | |
8655430b |
1566 | static gint map_block(LttTracefile * tf, guint block_num) |
6cd62ccf |
1567 | { |
b77d1b57 |
1568 | int page_size = getpagesize(); |
3aee1200 |
1569 | struct ltt_block_start_header *header; |
1570 | |
1571 | g_assert(block_num < tf->num_blocks); |
6cd62ccf |
1572 | |
f628823c |
1573 | if(tf->buffer.head != NULL) { |
1574 | if(munmap(tf->buffer.head, PAGE_ALIGN(tf->buf_size))) { |
1575 | g_warning("unmap size : %u\n", |
1576 | PAGE_ALIGN(tf->buf_size)); |
1577 | perror("munmap error"); |
1578 | g_assert(0); |
1579 | } |
1580 | } |
1581 | |
ac849774 |
1582 | |
3aee1200 |
1583 | /* Multiple of pages aligned head */ |
b77d1b57 |
1584 | tf->buffer.head = mmap(0, |
f628823c |
1585 | PAGE_ALIGN(tf->buf_size), |
b77d1b57 |
1586 | PROT_READ, MAP_PRIVATE, tf->fd, |
f628823c |
1587 | PAGE_ALIGN((off_t)tf->buf_size * (off_t)block_num)); |
3aee1200 |
1588 | |
3865ea09 |
1589 | if(tf->buffer.head == MAP_FAILED) { |
3aee1200 |
1590 | perror("Error in allocating memory for buffer of tracefile"); |
3865ea09 |
1591 | g_assert(0); |
3aee1200 |
1592 | goto map_error; |
6cd62ccf |
1593 | } |
f64fedd7 |
1594 | g_assert( ( (gulong)tf->buffer.head&(8-1) ) == 0); // make sure it's aligned. |
3aee1200 |
1595 | |
6cd62ccf |
1596 | |
3aee1200 |
1597 | tf->buffer.index = block_num; |
1598 | |
1599 | header = (struct ltt_block_start_header*)tf->buffer.head; |
1600 | |
791dffa6 |
1601 | #if 0 |
986e2a7c |
1602 | tf->buffer.begin.timestamp = ltt_time_add( |
1603 | ltt_time_from_uint64( |
1604 | ltt_get_uint64(LTT_GET_BO(tf), |
1605 | &header->begin.timestamp) |
1606 | - tf->trace->start_monotonic), |
1607 | tf->trace->start_time); |
791dffa6 |
1608 | #endif //0 |
348c6ba8 |
1609 | //g_debug("block %u begin : %lu.%lu", block_num, |
1610 | // tf->buffer.begin.timestamp.tv_sec, tf->buffer.begin.timestamp.tv_nsec); |
3aee1200 |
1611 | tf->buffer.begin.cycle_count = ltt_get_uint64(LTT_GET_BO(tf), |
1612 | &header->begin.cycle_count); |
986e2a7c |
1613 | tf->buffer.begin.freq = ltt_get_uint64(LTT_GET_BO(tf), |
1614 | &header->begin.freq); |
62e4e7bf |
1615 | if(tf->buffer.begin.freq == 0) |
1616 | tf->buffer.begin.freq = tf->trace->start_freq; |
ae3d0f50 |
1617 | |
1618 | tf->buffer.begin.timestamp = ltt_interpolate_time_from_tsc(tf, |
62e4e7bf |
1619 | tf->buffer.begin.cycle_count); |
ae3d0f50 |
1620 | #if 0 |
62e4e7bf |
1621 | ltt_time_add( |
791dffa6 |
1622 | ltt_time_from_uint64( |
88612d17 |
1623 | (double)(tf->buffer.begin.cycle_count |
1624 | - tf->trace->start_tsc) * 1000000.0 |
791dffa6 |
1625 | / (double)tf->trace->start_freq), |
62e4e7bf |
1626 | tf->trace->start_time_from_tsc); |
ae3d0f50 |
1627 | #endif //0 |
791dffa6 |
1628 | #if 0 |
1629 | |
986e2a7c |
1630 | tf->buffer.end.timestamp = ltt_time_add( |
1631 | ltt_time_from_uint64( |
1632 | ltt_get_uint64(LTT_GET_BO(tf), |
1633 | &header->end.timestamp) |
1634 | - tf->trace->start_monotonic), |
1635 | tf->trace->start_time); |
791dffa6 |
1636 | #endif //0 |
348c6ba8 |
1637 | //g_debug("block %u end : %lu.%lu", block_num, |
1638 | // tf->buffer.end.timestamp.tv_sec, tf->buffer.end.timestamp.tv_nsec); |
3aee1200 |
1639 | tf->buffer.end.cycle_count = ltt_get_uint64(LTT_GET_BO(tf), |
1640 | &header->end.cycle_count); |
986e2a7c |
1641 | tf->buffer.end.freq = ltt_get_uint64(LTT_GET_BO(tf), |
1642 | &header->end.freq); |
62e4e7bf |
1643 | if(tf->buffer.end.freq == 0) |
1644 | tf->buffer.end.freq = tf->trace->start_freq; |
1645 | |
3aee1200 |
1646 | tf->buffer.lost_size = ltt_get_uint32(LTT_GET_BO(tf), |
986e2a7c |
1647 | &header->lost_size); |
ae3d0f50 |
1648 | tf->buffer.end.timestamp = ltt_interpolate_time_from_tsc(tf, |
62e4e7bf |
1649 | tf->buffer.end.cycle_count); |
ae3d0f50 |
1650 | #if 0 |
62e4e7bf |
1651 | ltt_time_add( |
791dffa6 |
1652 | ltt_time_from_uint64( |
88612d17 |
1653 | (double)(tf->buffer.end.cycle_count |
1654 | - tf->trace->start_tsc) * 1000000.0 |
791dffa6 |
1655 | / (double)tf->trace->start_freq), |
88612d17 |
1656 | tf->trace->start_time_from_tsc); |
ae3d0f50 |
1657 | #endif //0 |
3aee1200 |
1658 | tf->buffer.tsc = tf->buffer.begin.cycle_count; |
1659 | tf->event.tsc = tf->buffer.tsc; |
986e2a7c |
1660 | tf->buffer.freq = tf->buffer.begin.freq; |
3aee1200 |
1661 | |
1662 | /* FIXME |
1663 | * eventually support variable buffer size : will need a partial pre-read of |
1664 | * the headers to create an index when we open the trace... eventually. */ |
f628823c |
1665 | g_assert(tf->buf_size == ltt_get_uint32(LTT_GET_BO(tf), |
3aee1200 |
1666 | &header->buf_size)); |
507915ee |
1667 | |
3aee1200 |
1668 | /* Now that the buffer is mapped, calculate the time interpolation for the |
1669 | * block. */ |
1670 | |
791dffa6 |
1671 | // tf->buffer.nsecs_per_cycle = calc_nsecs_per_cycle(tf); |
1672 | //tf->buffer.cyc2ns_scale = calc_nsecs_per_cycle(tf); |
3aee1200 |
1673 | |
1674 | /* Make the current event point to the beginning of the buffer : |
1675 | * it means that the event read must get the first event. */ |
1676 | tf->event.tracefile = tf; |
1677 | tf->event.block = block_num; |
eed2ef37 |
1678 | tf->event.offset = 0; |
3aee1200 |
1679 | |
1680 | return 0; |
6cd62ccf |
1681 | |
3aee1200 |
1682 | map_error: |
1683 | return -errno; |
40331ba8 |
1684 | |
6cd62ccf |
1685 | } |
1686 | |
91f8d488 |
1687 | static void print_debug_event_data(LttEvent *ev) |
1688 | { |
1689 | unsigned int offset = 0; |
1690 | int i, j; |
1691 | |
1692 | if (!max(ev->event_size, ev->data_size)) |
1693 | return; |
1694 | |
1695 | g_printf("Event data (tracefile %s offset %llx):\n", |
afd57a3c |
1696 | g_quark_to_string(ev->tracefile->long_name), |
91f8d488 |
1697 | ((uint64_t)ev->tracefile->buffer.index * ev->tracefile->buf_size) |
1698 | + (long)ev->data - (long)ev->tracefile->buffer.head); |
1699 | |
1700 | while (offset < max(ev->event_size, ev->data_size)) { |
1701 | g_printf("%8lx", (long)ev->data + offset |
1702 | - (long)ev->tracefile->buffer.head); |
1703 | g_printf(" "); |
1704 | |
1705 | for (i = 0; i < 4 ; i++) { |
1706 | for (j = 0; j < 4; j++) { |
1707 | if (offset + ((i * 4) + j) < max(ev->event_size, ev->data_size)) |
1708 | g_printf("%02hhX", ((char*)ev->data)[offset + ((i * 4) + j)]); |
1709 | else |
1710 | g_printf(" "); |
1711 | g_printf(" "); |
1712 | } |
1713 | if (i < 4) |
1714 | g_printf(" "); |
1715 | } |
1716 | |
1717 | g_printf(" "); |
1718 | |
1719 | for (i = 0; i < 4; i++) { |
1720 | for (j = 0; j < 4; j++) { |
1721 | if (offset + ((i * 4) + j) < max(ev->event_size, ev->data_size)) { |
1722 | if (isprint(((char*)ev->data)[offset + ((i * 4) + j)])) |
1723 | g_printf("%c", ((char*)ev->data)[offset + ((i * 4) + j)]); |
1724 | else |
1725 | g_printf("."); |
1726 | } else |
1727 | g_printf(" "); |
1728 | } |
1729 | } |
1730 | offset+=16; |
1731 | g_printf("\n"); |
1732 | } |
1733 | } |
1734 | |
77175651 |
1735 | /* It will update the fields offsets too */ |
1736 | void ltt_update_event_size(LttTracefile *tf) |
6cd62ccf |
1737 | { |
2312de30 |
1738 | off_t size = 0; |
d1bb700c |
1739 | char *tscdata; |
d2007fbd |
1740 | struct marker_info *info; |
44f317b7 |
1741 | |
d2007fbd |
1742 | switch((enum marker_id)tf->event.event_id) { |
1743 | case MARKER_ID_SET_MARKER_ID: |
44f317b7 |
1744 | size = strlen((char*)tf->event.data) + 1; |
07effdbd |
1745 | g_debug("marker %s id set", (char*)tf->event.data); |
256a5b3a |
1746 | size += ltt_align(size, sizeof(guint16), tf->alignment); |
d2007fbd |
1747 | size += sizeof(guint16); |
3c165eaf |
1748 | size += sizeof(guint8); |
1749 | size += sizeof(guint8); |
1750 | size += sizeof(guint8); |
1751 | size += sizeof(guint8); |
1752 | size += sizeof(guint8); |
44f317b7 |
1753 | break; |
d2007fbd |
1754 | case MARKER_ID_SET_MARKER_FORMAT: |
07effdbd |
1755 | g_debug("marker %s format set", (char*)tf->event.data); |
44f317b7 |
1756 | size = strlen((char*)tf->event.data) + 1; |
2e13d6af |
1757 | size += strlen((char*)tf->event.data + size) + 1; |
44f317b7 |
1758 | break; |
d2007fbd |
1759 | case MARKER_ID_HEARTBEAT_32: |
07effdbd |
1760 | g_debug("Update Event heartbeat 32 bits"); |
44f317b7 |
1761 | break; |
d2007fbd |
1762 | case MARKER_ID_HEARTBEAT_64: |
07effdbd |
1763 | g_debug("Update Event heartbeat 64 bits"); |
d1bb700c |
1764 | tscdata = (char*)(tf->event.data); |
1765 | tf->event.tsc = ltt_get_uint64(LTT_GET_BO(tf), tscdata); |
1766 | tf->buffer.tsc = tf->event.tsc; |
1767 | tf->event.event_time = ltt_interpolate_time(tf, &tf->event); |
256a5b3a |
1768 | size = ltt_align(size, sizeof(guint64), tf->alignment); |
d2007fbd |
1769 | size += sizeof(guint64); |
d1bb700c |
1770 | break; |
256a5b3a |
1771 | } |
1772 | |
1773 | info = marker_get_info_from_id(tf->trace, tf->event.event_id); |
dcf96842 |
1774 | |
256a5b3a |
1775 | if (tf->event.event_id >= MARKER_CORE_IDS) |
1776 | g_assert(info != NULL); |
1777 | |
1778 | /* Do not update field offsets of core markers when initially reading the |
1779 | * facility tracefile when the infos about these markers do not exist yet. |
1780 | */ |
1781 | if (likely(info && info->fields)) { |
1782 | if (info->size != -1) |
1783 | size = info->size; |
1784 | else |
1785 | size = marker_update_fields_offsets(marker_get_info_from_id(tf->trace, |
1786 | tf->event.event_id), tf->event.data); |
44f317b7 |
1787 | } |
c4afd5d8 |
1788 | |
d2007fbd |
1789 | tf->event.data_size = size; |
1790 | |
1791 | /* Check consistency between kernel and LTTV structure sizes */ |
1792 | if(tf->event.event_size == 0xFFFF) { |
1793 | /* Event size too big to fit in the event size field */ |
1794 | tf->event.event_size = tf->event.data_size; |
1795 | } |
91f8d488 |
1796 | |
1797 | if (a_event_debug) |
1798 | print_debug_event_data(&tf->event); |
1799 | |
27c089c1 |
1800 | /* Having a marker load or marker format event out of the facilities |
1801 | * tracefiles is a serious bug. */ |
1802 | switch((enum marker_id)tf->event.event_id) { |
1803 | case MARKER_ID_SET_MARKER_ID: |
1804 | case MARKER_ID_SET_MARKER_FORMAT: |
1805 | if (tf->name != g_quark_from_string("/control/facilities")) |
1806 | g_error("Trace inconsistency : metadata event found in data " |
1807 | "tracefile %s", g_quark_to_string(tf->long_name)); |
1808 | } |
1809 | |
d2007fbd |
1810 | if (tf->event.data_size != tf->event.event_size) { |
3c165eaf |
1811 | struct marker_info *info = marker_get_info_from_id(tf->trace, |
1812 | tf->event.event_id); |
1813 | g_error("Kernel/LTTV event size differs for event %s: kernel %u, LTTV %u", |
1814 | g_quark_to_string(info->name), |
1815 | tf->event.event_size, tf->event.data_size); |
d2007fbd |
1816 | exit(-1); |
1817 | } |
6cd62ccf |
1818 | } |
1819 | |
6cd62ccf |
1820 | |
3aee1200 |
1821 | /* Take the tf current event offset and use the event facility id and event id |
1822 | * to figure out where is the next event offset. |
1823 | * |
1824 | * This is an internal function not aiming at being used elsewhere : it will |
1825 | * not jump over the current block limits. Please consider using |
1826 | * ltt_tracefile_read to do this. |
1827 | * |
1828 | * Returns 0 on success |
1829 | * ERANGE if we are at the end of the buffer. |
1830 | * ENOPROTOOPT if an error occured when getting the current event size. |
1831 | */ |
8655430b |
1832 | static int ltt_seek_next_event(LttTracefile *tf) |
6cd62ccf |
1833 | { |
3aee1200 |
1834 | int ret = 0; |
1835 | void *pos; |
3aee1200 |
1836 | |
1837 | /* seek over the buffer header if we are at the buffer start */ |
eed2ef37 |
1838 | if(tf->event.offset == 0) { |
51551c6f |
1839 | tf->event.offset += tf->buffer_header_size; |
b77d1b57 |
1840 | |
f628823c |
1841 | if(tf->event.offset == tf->buf_size - tf->buffer.lost_size) { |
b77d1b57 |
1842 | ret = ERANGE; |
1843 | } |
3aee1200 |
1844 | goto found; |
1845 | } |
6cd62ccf |
1846 | |
6cd62ccf |
1847 | |
3aee1200 |
1848 | pos = tf->event.data; |
1849 | |
77175651 |
1850 | if(tf->event.data_size < 0) goto error; |
3aee1200 |
1851 | |
77175651 |
1852 | pos += (size_t)tf->event.data_size; |
3aee1200 |
1853 | |
eed2ef37 |
1854 | tf->event.offset = pos - tf->buffer.head; |
cb03932a |
1855 | |
f628823c |
1856 | if(tf->event.offset == tf->buf_size - tf->buffer.lost_size) { |
cb03932a |
1857 | ret = ERANGE; |
1858 | goto found; |
1859 | } |
36d36c9f |
1860 | g_assert(tf->event.offset < tf->buf_size - tf->buffer.lost_size); |
3aee1200 |
1861 | |
1862 | found: |
1863 | return ret; |
1864 | |
1865 | error: |
1866 | g_error("Error in ltt_seek_next_event for tracefile %s", |
1867 | g_quark_to_string(tf->name)); |
1868 | return ENOPROTOOPT; |
6cd62ccf |
1869 | } |
1870 | |
791dffa6 |
1871 | #if 0 |
6cd62ccf |
1872 | /***************************************************************************** |
1873 | *Function name |
3aee1200 |
1874 | * calc_nsecs_per_cycle : calculate nsecs per cycle for current block |
986e2a7c |
1875 | * |
1876 | * 1.0 / (freq(khz) *1000) * 1000000000 |
6cd62ccf |
1877 | *Input Params |
1878 | * t : tracefile |
1879 | ****************************************************************************/ |
986e2a7c |
1880 | /* from timer_tsc.c */ |
1881 | #define CYC2NS_SCALE_FACTOR 10 |
791dffa6 |
1882 | static guint32 calc_nsecs_per_cycle(LttTracefile * tf) |
6cd62ccf |
1883 | { |
986e2a7c |
1884 | //return 1e6 / (double)tf->buffer.freq; |
791dffa6 |
1885 | guint32 cpu_mhz = tf->buffer.freq / 1000; |
1886 | guint32 cyc2ns_scale = (1000 << CYC2NS_SCALE_FACTOR)/cpu_mhz; |
6cd62ccf |
1887 | |
791dffa6 |
1888 | return cyc2ns_scale; |
986e2a7c |
1889 | // return 1e6 / (double)tf->buffer.freq; |
3aee1200 |
1890 | } |
791dffa6 |
1891 | |
1892 | static guint64 cycles_2_ns(LttTracefile *tf, guint64 cycles) |
1893 | { |
1894 | return (cycles * tf->buffer.cyc2ns_scale) >> CYC2NS_SCALE_FACTOR; |
1895 | } |
1896 | #endif //0 |
1897 | |
3aee1200 |
1898 | #if 0 |
1899 | void setFieldsOffset(LttTracefile *tf, LttEventType *evT,void *evD) |
1900 | { |
1901 | LttField * rootFld = evT->root_field; |
1902 | // rootFld->base_address = evD; |
2dee981d |
1903 | |
3aee1200 |
1904 | if(likely(rootFld)) |
1905 | rootFld->field_size = getFieldtypeSize(tf, evT->facility, |
1906 | evT, 0,0,rootFld, evD); |
6cd62ccf |
1907 | } |
3aee1200 |
1908 | #endif //0 |
f104d082 |
1909 | #if 0 |
3aee1200 |
1910 | /***************************************************************************** |
6cd62ccf |
1911 | *Function name |
3aee1200 |
1912 | * set_fields_offsets : set the precomputable offset of the fields |
6cd62ccf |
1913 | *Input params |
3aee1200 |
1914 | * tracefile : opened trace file |
1915 | * event_type : the event type |
6cd62ccf |
1916 | ****************************************************************************/ |
1917 | |
3aee1200 |
1918 | void set_fields_offsets(LttTracefile *tf, LttEventType *event_type) |
6cd62ccf |
1919 | { |
3aee1200 |
1920 | LttField *field = event_type->root_field; |
1921 | enum field_status fixed_root = FIELD_FIXED, fixed_parent = FIELD_FIXED; |
1922 | |
1923 | if(likely(field)) |
1924 | preset_field_type_size(tf, event_type, 0, 0, |
1925 | &fixed_root, &fixed_parent, |
1926 | field); |
1927 | |
1928 | } |
f104d082 |
1929 | #endif //0 |
1930 | |
1931 | |
1932 | /***************************************************************************** |
1933 | *Function name |
1934 | * get_alignment : Get the alignment needed for a field. |
1935 | *Input params |
f104d082 |
1936 | * field : field |
1937 | * |
1938 | * returns : The size on which it must be aligned. |
1939 | * |
1940 | ****************************************************************************/ |
3c165eaf |
1941 | #if 0 |
743e50fd |
1942 | off_t get_alignment(LttField *field) |
f104d082 |
1943 | { |
2312de30 |
1944 | LttType *type = &field->field_type; |
f104d082 |
1945 | |
1946 | switch(type->type_class) { |
1947 | case LTT_INT_FIXED: |
1948 | case LTT_UINT_FIXED: |
1949 | case LTT_POINTER: |
1950 | case LTT_CHAR: |
1951 | case LTT_UCHAR: |
1952 | case LTT_SHORT: |
1953 | case LTT_USHORT: |
1954 | case LTT_INT: |
1955 | case LTT_UINT: |
1956 | case LTT_LONG: |
1957 | case LTT_ULONG: |
1958 | case LTT_SIZE_T: |
1959 | case LTT_SSIZE_T: |
1960 | case LTT_OFF_T: |
1961 | case LTT_FLOAT: |
1962 | case LTT_ENUM: |
1963 | /* Align offset on type size */ |
83e160f2 |
1964 | g_assert(field->field_size != 0); |
f104d082 |
1965 | return field->field_size; |
1966 | break; |
1967 | case LTT_STRING: |
83e160f2 |
1968 | return 1; |
f104d082 |
1969 | break; |
1970 | case LTT_ARRAY: |
1971 | g_assert(type->fields->len == 1); |
1972 | { |
1973 | LttField *child = &g_array_index(type->fields, LttField, 0); |
743e50fd |
1974 | return get_alignment(child); |
f104d082 |
1975 | } |
1976 | break; |
1977 | case LTT_SEQUENCE: |
1978 | g_assert(type->fields->len == 2); |
1979 | { |
83e160f2 |
1980 | off_t localign = 1; |
f104d082 |
1981 | LttField *child = &g_array_index(type->fields, LttField, 0); |
1982 | |
743e50fd |
1983 | localign = max(localign, get_alignment(child)); |
f104d082 |
1984 | |
1985 | child = &g_array_index(type->fields, LttField, 1); |
743e50fd |
1986 | localign = max(localign, get_alignment(child)); |
f104d082 |
1987 | |
1988 | return localign; |
1989 | } |
1990 | break; |
1991 | case LTT_STRUCT: |
1992 | case LTT_UNION: |
1993 | { |
1994 | guint i; |
83e160f2 |
1995 | off_t localign = 1; |
f104d082 |
1996 | |
1997 | for(i=0; i<type->fields->len; i++) { |
1998 | LttField *child = &g_array_index(type->fields, LttField, i); |
743e50fd |
1999 | localign = max(localign, get_alignment(child)); |
f104d082 |
2000 | } |
2001 | return localign; |
2002 | } |
2003 | break; |
2004 | case LTT_NONE: |
2005 | default: |
2006 | g_error("get_alignment : unknown type"); |
83e160f2 |
2007 | return -1; |
f104d082 |
2008 | } |
f104d082 |
2009 | } |
2010 | |
3c165eaf |
2011 | #endif //0 |
2012 | |
f104d082 |
2013 | /***************************************************************************** |
2014 | *Function name |
2015 | * field_compute_static_size : Determine the size of fields known by their |
2016 | * sole definition. Unions, arrays and struct sizes might be known, but |
2017 | * the parser does not give that information. |
2018 | *Input params |
2019 | * tf : tracefile |
2020 | * field : field |
2021 | * |
2022 | ****************************************************************************/ |
3c165eaf |
2023 | #if 0 |
743e50fd |
2024 | void field_compute_static_size(LttFacility *fac, LttField *field) |
f104d082 |
2025 | { |
2312de30 |
2026 | LttType *type = &field->field_type; |
f104d082 |
2027 | |
2028 | switch(type->type_class) { |
2029 | case LTT_INT_FIXED: |
2030 | case LTT_UINT_FIXED: |
2031 | case LTT_POINTER: |
2032 | case LTT_CHAR: |
2033 | case LTT_UCHAR: |
2034 | case LTT_SHORT: |
2035 | case LTT_USHORT: |
2036 | case LTT_INT: |
2037 | case LTT_UINT: |
2038 | case LTT_LONG: |
2039 | case LTT_ULONG: |
2040 | case LTT_SIZE_T: |
2041 | case LTT_SSIZE_T: |
2042 | case LTT_OFF_T: |
2043 | case LTT_FLOAT: |
2044 | case LTT_ENUM: |
2045 | case LTT_STRING: |
2046 | /* nothing to do */ |
2047 | break; |
2048 | case LTT_ARRAY: |
2049 | /* note this : array type size is the number of elements in the array, |
2050 | * while array field size of the length of the array in bytes */ |
2051 | g_assert(type->fields->len == 1); |
2052 | { |
2053 | LttField *child = &g_array_index(type->fields, LttField, 0); |
743e50fd |
2054 | field_compute_static_size(fac, child); |
f104d082 |
2055 | |
2056 | if(child->field_size != 0) { |
2057 | field->field_size = type->size * child->field_size; |
2058 | field->dynamic_offsets = g_array_sized_new(FALSE, TRUE, |
2059 | sizeof(off_t), type->size); |
2060 | } else { |
2061 | field->field_size = 0; |
2062 | } |
2063 | } |
2064 | break; |
2065 | case LTT_SEQUENCE: |
2066 | g_assert(type->fields->len == 2); |
2067 | { |
2312de30 |
2068 | off_t local_offset = 0; |
f104d082 |
2069 | LttField *child = &g_array_index(type->fields, LttField, 1); |
743e50fd |
2070 | field_compute_static_size(fac, child); |
f104d082 |
2071 | field->field_size = 0; |
2072 | type->size = 0; |
2073 | if(child->field_size != 0) { |
2074 | field->dynamic_offsets = g_array_sized_new(FALSE, TRUE, |
2075 | sizeof(off_t), SEQUENCE_AVG_ELEMENTS); |
2076 | } |
2077 | } |
2078 | break; |
2079 | case LTT_STRUCT: |
2080 | case LTT_UNION: |
2081 | { |
2082 | guint i; |
2083 | for(i=0;i<type->fields->len;i++) { |
2084 | LttField *child = &g_array_index(type->fields, LttField, i); |
743e50fd |
2085 | field_compute_static_size(fac, child); |
f104d082 |
2086 | if(child->field_size != 0) { |
743e50fd |
2087 | type->size += ltt_align(type->size, get_alignment(child), |
2088 | fac->alignment); |
f104d082 |
2089 | type->size += child->field_size; |
2090 | } else { |
2091 | /* As soon as we find a child with variable size, we have |
2092 | * a variable size */ |
2093 | type->size = 0; |
2094 | break; |
2095 | } |
2096 | } |
2097 | field->field_size = type->size; |
2098 | } |
2099 | break; |
2100 | default: |
2101 | g_error("field_static_size : unknown type"); |
2312de30 |
2102 | } |
f104d082 |
2103 | |
2104 | } |
3c165eaf |
2105 | #endif //0 |
f104d082 |
2106 | |
2107 | |
2108 | /***************************************************************************** |
2109 | *Function name |
2110 | * precompute_fields_offsets : set the precomputable offset of the fields |
2111 | *Input params |
743e50fd |
2112 | * fac : facility |
f104d082 |
2113 | * field : the field |
2114 | * offset : pointer to the current offset, must be incremented |
2115 | * |
2116 | * return : 1 : found a variable length field, stop the processing. |
2117 | * 0 otherwise. |
2118 | ****************************************************************************/ |
2119 | |
3c165eaf |
2120 | #if 0 |
dd3a6d39 |
2121 | gint precompute_fields_offsets(LttFacility *fac, LttField *field, off_t *offset, gint is_compact) |
f104d082 |
2122 | { |
2312de30 |
2123 | LttType *type = &field->field_type; |
dd3a6d39 |
2124 | |
2125 | if(unlikely(is_compact)) { |
2126 | g_assert(field->field_size != 0); |
2127 | /* FIXME THIS IS A HUUUUUGE hack : |
2128 | * offset is between the compact_data field in struct LttEvent |
2129 | * and the address of the field root in the memory map. |
2130 | * ark. Both will stay at the same addresses while the event |
2131 | * is readable, so it's ok. |
2132 | */ |
2133 | field->offset_root = 0; |
2134 | field->fixed_root = FIELD_FIXED; |
2135 | return 0; |
2136 | } |
f104d082 |
2137 | |
2138 | switch(type->type_class) { |
2139 | case LTT_INT_FIXED: |
2140 | case LTT_UINT_FIXED: |
2141 | case LTT_POINTER: |
2142 | case LTT_CHAR: |
2143 | case LTT_UCHAR: |
2144 | case LTT_SHORT: |
2145 | case LTT_USHORT: |
2146 | case LTT_INT: |
2147 | case LTT_UINT: |
2148 | case LTT_LONG: |
2149 | case LTT_ULONG: |
2150 | case LTT_SIZE_T: |
2151 | case LTT_SSIZE_T: |
2152 | case LTT_OFF_T: |
2153 | case LTT_FLOAT: |
2154 | case LTT_ENUM: |
743e50fd |
2155 | g_assert(field->field_size != 0); |
f104d082 |
2156 | /* Align offset on type size */ |
743e50fd |
2157 | *offset += ltt_align(*offset, get_alignment(field), |
2158 | fac->alignment); |
f104d082 |
2159 | /* remember offset */ |
2160 | field->offset_root = *offset; |
2161 | field->fixed_root = FIELD_FIXED; |
2162 | /* Increment offset */ |
2163 | *offset += field->field_size; |
2164 | return 0; |
2165 | break; |
2166 | case LTT_STRING: |
2167 | field->offset_root = *offset; |
2168 | field->fixed_root = FIELD_FIXED; |
2169 | return 1; |
2170 | break; |
2171 | case LTT_ARRAY: |
2172 | g_assert(type->fields->len == 1); |
2173 | { |
2174 | LttField *child = &g_array_index(type->fields, LttField, 0); |
2175 | |
743e50fd |
2176 | *offset += ltt_align(*offset, get_alignment(field), |
2177 | fac->alignment); |
f104d082 |
2178 | |
2179 | /* remember offset */ |
2180 | field->offset_root = *offset; |
2181 | field->array_offset = *offset; |
2182 | field->fixed_root = FIELD_FIXED; |
2183 | |
2184 | /* Let the child be variable */ |
2185 | //precompute_fields_offsets(tf, child, offset); |
2186 | |
2187 | if(field->field_size != 0) { |
2188 | /* Increment offset */ |
2189 | /* field_size is the array size in bytes */ |
2190 | *offset += field->field_size; |
2191 | return 0; |
2192 | } else { |
2193 | return 1; |
2194 | } |
2195 | } |
2196 | break; |
2197 | case LTT_SEQUENCE: |
2198 | g_assert(type->fields->len == 2); |
2199 | { |
2200 | LttField *child; |
2201 | guint ret; |
2202 | |
743e50fd |
2203 | *offset += ltt_align(*offset, get_alignment(field), |
2204 | fac->alignment); |
f104d082 |
2205 | |
2206 | /* remember offset */ |
2207 | field->offset_root = *offset; |
2208 | field->fixed_root = FIELD_FIXED; |
2209 | |
2210 | child = &g_array_index(type->fields, LttField, 0); |
dd3a6d39 |
2211 | ret = precompute_fields_offsets(fac, child, offset, is_compact); |
f104d082 |
2212 | g_assert(ret == 0); /* Seq len cannot have variable len */ |
2213 | |
2214 | child = &g_array_index(type->fields, LttField, 1); |
743e50fd |
2215 | *offset += ltt_align(*offset, get_alignment(child), |
2216 | fac->alignment); |
f104d082 |
2217 | field->array_offset = *offset; |
743e50fd |
2218 | /* Let the child be variable. */ |
2219 | //ret = precompute_fields_offsets(fac, child, offset); |
f104d082 |
2220 | |
2221 | /* Cannot precompute fields offsets of sequence members, and has |
2222 | * variable length. */ |
2223 | return 1; |
2224 | } |
2225 | break; |
2226 | case LTT_STRUCT: |
2227 | { |
2228 | LttField *child; |
2229 | guint i; |
2230 | gint ret=0; |
2231 | |
743e50fd |
2232 | *offset += ltt_align(*offset, get_alignment(field), |
2233 | fac->alignment); |
f104d082 |
2234 | /* remember offset */ |
2235 | field->offset_root = *offset; |
2236 | field->fixed_root = FIELD_FIXED; |
2237 | |
2238 | for(i=0; i< type->fields->len; i++) { |
2239 | child = &g_array_index(type->fields, LttField, i); |
dd3a6d39 |
2240 | ret = precompute_fields_offsets(fac, child, offset, is_compact); |
f104d082 |
2241 | |
2242 | if(ret) break; |
2243 | } |
2244 | return ret; |
2245 | } |
2246 | break; |
2247 | case LTT_UNION: |
2248 | { |
2249 | LttField *child; |
2250 | guint i; |
2251 | gint ret=0; |
2252 | |
743e50fd |
2253 | *offset += ltt_align(*offset, get_alignment(field), |
2254 | fac->alignment); |
f104d082 |
2255 | /* remember offset */ |
2256 | field->offset_root = *offset; |
2257 | field->fixed_root = FIELD_FIXED; |
2258 | |
2259 | for(i=0; i< type->fields->len; i++) { |
2260 | *offset = field->offset_root; |
2261 | child = &g_array_index(type->fields, LttField, i); |
dd3a6d39 |
2262 | ret = precompute_fields_offsets(fac, child, offset, is_compact); |
f104d082 |
2263 | |
2264 | if(ret) break; |
2265 | } |
2266 | *offset = field->offset_root + field->field_size; |
2267 | return ret; |
2268 | } |
2269 | |
2270 | break; |
2271 | case LTT_NONE: |
2272 | default: |
2273 | g_error("precompute_fields_offsets : unknown type"); |
2274 | return 1; |
2275 | } |
2276 | |
2277 | } |
2278 | |
3c165eaf |
2279 | #endif //0 |
f104d082 |
2280 | |
3c165eaf |
2281 | #if 0 |
f104d082 |
2282 | /***************************************************************************** |
2283 | *Function name |
2284 | * precompute_offsets : set the precomputable offset of an event type |
2285 | *Input params |
2286 | * tf : tracefile |
2287 | * event : event type |
2288 | * |
2289 | ****************************************************************************/ |
743e50fd |
2290 | void precompute_offsets(LttFacility *fac, LttEventType *event) |
f104d082 |
2291 | { |
2292 | guint i; |
2293 | off_t offset = 0; |
2294 | gint ret; |
2295 | |
2296 | /* First, compute the size of fixed size fields. Will determine size for |
2297 | * arrays, struct and unions, which is not done by the parser */ |
2298 | for(i=0; i<event->fields->len; i++) { |
2299 | LttField *field = &g_array_index(event->fields, LttField, i); |
743e50fd |
2300 | field_compute_static_size(fac, field); |
f104d082 |
2301 | } |
2302 | |
2303 | /* Precompute all known offsets */ |
2304 | for(i=0; i<event->fields->len; i++) { |
2305 | LttField *field = &g_array_index(event->fields, LttField, i); |
dd3a6d39 |
2306 | if(event->has_compact_data && i == 0) |
2307 | ret = precompute_fields_offsets(fac, field, &offset, 1); |
2308 | else |
2309 | ret = precompute_fields_offsets(fac, field, &offset, 0); |
f104d082 |
2310 | if(ret) break; |
2311 | } |
2312 | } |
3c165eaf |
2313 | #endif //0 |
f104d082 |
2314 | |
e4eced0f |
2315 | |
bbf28e50 |
2316 | |
3aee1200 |
2317 | /***************************************************************************** |
2318 | *Function name |
2319 | * preset_field_type_size : set the fixed sizes of the field type |
2320 | *Input params |
2321 | * tf : tracefile |
2322 | * event_type : event type |
2323 | * offset_root : offset from the root |
2324 | * offset_parent : offset from the parent |
2325 | * fixed_root : Do we know a fixed offset to the root ? |
2326 | * fixed_parent : Do we know a fixed offset to the parent ? |
2327 | * field : field |
2328 | ****************************************************************************/ |
f104d082 |
2329 | |
2330 | |
2331 | |
2332 | // preset the fixed size offsets. Calculate them just like genevent-new : an |
2333 | // increment of a *to value that represents the offset from the start of the |
2334 | // event data. |
2335 | // The preset information is : offsets up to (and including) the first element |
2336 | // of variable size. All subsequent fields must be flagged "VARIABLE OFFSET". |
2337 | #if 0 |
3aee1200 |
2338 | void preset_field_type_size(LttTracefile *tf, LttEventType *event_type, |
2339 | off_t offset_root, off_t offset_parent, |
2340 | enum field_status *fixed_root, enum field_status *fixed_parent, |
2341 | LttField *field) |
2342 | { |
2343 | enum field_status local_fixed_root, local_fixed_parent; |
2344 | guint i; |
2345 | LttType *type; |
dfb73233 |
2346 | |
3aee1200 |
2347 | g_assert(field->fixed_root == FIELD_UNKNOWN); |
2348 | g_assert(field->fixed_parent == FIELD_UNKNOWN); |
2349 | g_assert(field->fixed_size == FIELD_UNKNOWN); |
dfb73233 |
2350 | |
3aee1200 |
2351 | type = field->field_type; |
2352 | |
2353 | field->fixed_root = *fixed_root; |
2354 | if(field->fixed_root == FIELD_FIXED) |
2355 | field->offset_root = offset_root; |
2356 | else |
2357 | field->offset_root = 0; |
2358 | |
2359 | field->fixed_parent = *fixed_parent; |
2360 | if(field->fixed_parent == FIELD_FIXED) |
2361 | field->offset_parent = offset_parent; |
2362 | else |
2363 | field->offset_parent = 0; |
2364 | |
2365 | size_t current_root_offset; |
2366 | size_t current_offset; |
2367 | enum field_status current_child_status, final_child_status; |
2368 | size_t max_size; |
2369 | |
2370 | switch(type->type_class) { |
83e160f2 |
2371 | case LTT_INT_FIXED: |
2372 | case LTT_UINT_FIXED: |
2373 | case LTT_CHAR: |
2374 | case LTT_UCHAR: |
2375 | case LTT_SHORT: |
2376 | case LTT_USHORT: |
3aee1200 |
2377 | case LTT_INT: |
2378 | case LTT_UINT: |
2379 | case LTT_FLOAT: |
2380 | case LTT_ENUM: |
2381 | field->field_size = ltt_type_size(tf->trace, type); |
2382 | field->fixed_size = FIELD_FIXED; |
2383 | break; |
2384 | case LTT_POINTER: |
2385 | field->field_size = (off_t)event_type->facility->pointer_size; |
2386 | field->fixed_size = FIELD_FIXED; |
2387 | break; |
2388 | case LTT_LONG: |
2389 | case LTT_ULONG: |
cb03932a |
2390 | field->field_size = (off_t)event_type->facility->long_size; |
3aee1200 |
2391 | field->fixed_size = FIELD_FIXED; |
2392 | break; |
2393 | case LTT_SIZE_T: |
2394 | case LTT_SSIZE_T: |
2395 | case LTT_OFF_T: |
2396 | field->field_size = (off_t)event_type->facility->size_t_size; |
2397 | field->fixed_size = FIELD_FIXED; |
2398 | break; |
2399 | case LTT_SEQUENCE: |
2400 | local_fixed_root = FIELD_VARIABLE; |
2401 | local_fixed_parent = FIELD_VARIABLE; |
2402 | preset_field_type_size(tf, event_type, |
2403 | 0, 0, |
2404 | &local_fixed_root, &local_fixed_parent, |
2405 | field->child[0]); |
2406 | field->fixed_size = FIELD_VARIABLE; |
2407 | field->field_size = 0; |
27304273 |
2408 | *fixed_root = FIELD_VARIABLE; |
2409 | *fixed_parent = FIELD_VARIABLE; |
3aee1200 |
2410 | break; |
2411 | case LTT_STRING: |
2412 | field->fixed_size = FIELD_VARIABLE; |
2413 | field->field_size = 0; |
27304273 |
2414 | *fixed_root = FIELD_VARIABLE; |
2415 | *fixed_parent = FIELD_VARIABLE; |
3aee1200 |
2416 | break; |
2417 | case LTT_ARRAY: |
2418 | local_fixed_root = FIELD_VARIABLE; |
2419 | local_fixed_parent = FIELD_VARIABLE; |
2420 | preset_field_type_size(tf, event_type, |
2421 | 0, 0, |
2422 | &local_fixed_root, &local_fixed_parent, |
2423 | field->child[0]); |
2424 | field->fixed_size = field->child[0]->fixed_size; |
27304273 |
2425 | if(field->fixed_size == FIELD_FIXED) { |
3aee1200 |
2426 | field->field_size = type->element_number * field->child[0]->field_size; |
27304273 |
2427 | } else { |
3aee1200 |
2428 | field->field_size = 0; |
27304273 |
2429 | *fixed_root = FIELD_VARIABLE; |
2430 | *fixed_parent = FIELD_VARIABLE; |
2431 | } |
3aee1200 |
2432 | break; |
2433 | case LTT_STRUCT: |
2434 | current_root_offset = field->offset_root; |
2435 | current_offset = 0; |
2436 | current_child_status = FIELD_FIXED; |
2437 | for(i=0;i<type->element_number;i++) { |
2438 | preset_field_type_size(tf, event_type, |
2439 | current_root_offset, current_offset, |
2440 | fixed_root, ¤t_child_status, |
2441 | field->child[i]); |
2442 | if(current_child_status == FIELD_FIXED) { |
2443 | current_root_offset += field->child[i]->field_size; |
2444 | current_offset += field->child[i]->field_size; |
2445 | } else { |
2446 | current_root_offset = 0; |
2447 | current_offset = 0; |
2448 | } |
2449 | } |
2450 | if(current_child_status != FIELD_FIXED) { |
2451 | *fixed_parent = current_child_status; |
2452 | field->field_size = 0; |
2453 | field->fixed_size = current_child_status; |
2454 | } else { |
2455 | field->field_size = current_offset; |
2456 | field->fixed_size = FIELD_FIXED; |
2457 | } |
2458 | break; |
2459 | case LTT_UNION: |
2460 | current_root_offset = field->offset_root; |
2461 | current_offset = 0; |
2462 | max_size = 0; |
2463 | final_child_status = FIELD_FIXED; |
2464 | for(i=0;i<type->element_number;i++) { |
2465 | enum field_status current_root_child_status = FIELD_FIXED; |
2466 | enum field_status current_child_status = FIELD_FIXED; |
2467 | preset_field_type_size(tf, event_type, |
2468 | current_root_offset, current_offset, |
2469 | ¤t_root_child_status, ¤t_child_status, |
2470 | field->child[i]); |
2471 | if(current_child_status != FIELD_FIXED) |
2472 | final_child_status = current_child_status; |
2473 | else |
2474 | max_size = max(max_size, field->child[i]->field_size); |
2475 | } |
2476 | if(final_child_status != FIELD_FIXED) { |
62e4e7bf |
2477 | g_error("LTTV does not support variable size fields in unions."); |
2478 | /* This will stop the application. */ |
3aee1200 |
2479 | *fixed_root = final_child_status; |
2480 | *fixed_parent = final_child_status; |
2481 | field->field_size = 0; |
2482 | field->fixed_size = current_child_status; |
2483 | } else { |
2484 | field->field_size = max_size; |
2485 | field->fixed_size = FIELD_FIXED; |
2486 | } |
2487 | break; |
83e160f2 |
2488 | case LTT_NONE: |
2489 | g_error("unexpected type NONE"); |
2490 | break; |
dfb73233 |
2491 | } |
2492 | |
6cd62ccf |
2493 | } |
f104d082 |
2494 | #endif //0 |
3aee1200 |
2495 | |
77175651 |
2496 | /***************************************************************************** |
2497 | *Function name |
2498 | * check_fields_compatibility : Check for compatibility between two fields : |
2499 | * do they use the same inner structure ? |
2500 | *Input params |
2501 | * event_type1 : event type |
2502 | * event_type2 : event type |
2503 | * field1 : field |
2504 | * field2 : field |
2505 | *Returns : 0 if identical |
2506 | * 1 if not. |
2507 | ****************************************************************************/ |
f104d082 |
2508 | // this function checks for equality of field types. Therefore, it does not use |
2509 | // per se offsets. For instance, an aligned version of a structure is |
2510 | // compatible with an unaligned version of the same structure. |
3c165eaf |
2511 | #if 0 |
f104d082 |
2512 | gint check_fields_compatibility(LttEventType *event_type1, |
2513 | LttEventType *event_type2, |
2514 | LttField *field1, LttField *field2) |
2515 | { |
2516 | guint different = 0; |
2312de30 |
2517 | LttType *type1; |
2518 | LttType *type2; |
f104d082 |
2519 | |
2520 | if(field1 == NULL) { |
2521 | if(field2 == NULL) goto end; |
2522 | else { |
2523 | different = 1; |
2524 | goto end; |
2525 | } |
2526 | } else if(field2 == NULL) { |
2527 | different = 1; |
2528 | goto end; |
2529 | } |
2530 | |
2312de30 |
2531 | type1 = &field1->field_type; |
2532 | type2 = &field2->field_type; |
f104d082 |
2533 | |
2534 | if(type1->type_class != type2->type_class) { |
2535 | different = 1; |
2536 | goto end; |
2537 | } |
62e4e7bf |
2538 | if(type1->network != type2->network) { |
2539 | different = 1; |
2540 | goto end; |
2541 | } |
f104d082 |
2542 | |
2543 | switch(type1->type_class) { |
2544 | case LTT_INT_FIXED: |
2545 | case LTT_UINT_FIXED: |
2546 | case LTT_POINTER: |
2547 | case LTT_CHAR: |
2548 | case LTT_UCHAR: |
2549 | case LTT_SHORT: |
2550 | case LTT_USHORT: |
2551 | case LTT_INT: |
2552 | case LTT_UINT: |
2553 | case LTT_LONG: |
2554 | case LTT_ULONG: |
2555 | case LTT_SIZE_T: |
2556 | case LTT_SSIZE_T: |
2557 | case LTT_OFF_T: |
2558 | case LTT_FLOAT: |
2559 | case LTT_ENUM: |
2560 | if(field1->field_size != field2->field_size) |
2561 | different = 1; |
2562 | break; |
2563 | case LTT_STRING: |
2564 | break; |
2565 | case LTT_ARRAY: |
2566 | { |
2567 | LttField *child1 = &g_array_index(type1->fields, LttField, 0); |
2568 | LttField *child2 = &g_array_index(type2->fields, LttField, 0); |
2569 | |
2570 | if(type1->size != type2->size) |
2571 | different = 1; |
2572 | if(check_fields_compatibility(event_type1, event_type2, child1, child2)) |
2573 | different = 1; |
2574 | } |
2575 | break; |
2576 | case LTT_SEQUENCE: |
2577 | { |
2578 | LttField *child1 = &g_array_index(type1->fields, LttField, 1); |
2579 | LttField *child2 = &g_array_index(type2->fields, LttField, 1); |
2580 | |
2581 | if(check_fields_compatibility(event_type1, event_type2, child1, child2)) |
2582 | different = 1; |
2583 | } |
2584 | break; |
2585 | case LTT_STRUCT: |
2586 | case LTT_UNION: |
2587 | { |
2588 | LttField *child; |
2589 | guint i; |
2590 | |
2591 | if(type1->fields->len != type2->fields->len) { |
2592 | different = 1; |
2593 | goto end; |
2594 | } |
2595 | |
2596 | for(i=0; i< type1->fields->len; i++) { |
2312de30 |
2597 | LttField *child1; |
2598 | LttField *child2; |
f104d082 |
2599 | child1 = &g_array_index(type1->fields, LttField, i); |
2600 | child2 = &g_array_index(type2->fields, LttField, i); |
2601 | different = check_fields_compatibility(event_type1, |
2602 | event_type2, child1, child2); |
2603 | |
2604 | if(different) break; |
2605 | } |
2606 | } |
2607 | break; |
2608 | case LTT_NONE: |
2609 | default: |
dd3a6d39 |
2610 | g_error("check_fields_compatibility : unknown type"); |
f104d082 |
2611 | } |
2612 | |
2613 | end: |
2614 | return different; |
2615 | } |
3c165eaf |
2616 | #endif //0 |
f104d082 |
2617 | |
2618 | #if 0 |
77175651 |
2619 | gint check_fields_compatibility(LttEventType *event_type1, |
2620 | LttEventType *event_type2, |
2621 | LttField *field1, LttField *field2) |
2622 | { |
2623 | guint different = 0; |
77175651 |
2624 | guint i; |
2625 | LttType *type1; |
2626 | LttType *type2; |
2627 | |
2628 | if(field1 == NULL) { |
2629 | if(field2 == NULL) goto end; |
2630 | else { |
2631 | different = 1; |
2632 | goto end; |
2633 | } |
2634 | } else if(field2 == NULL) { |
2635 | different = 1; |
2636 | goto end; |
2637 | } |
2638 | |
2639 | g_assert(field1->fixed_root != FIELD_UNKNOWN); |
2640 | g_assert(field2->fixed_root != FIELD_UNKNOWN); |
2641 | g_assert(field1->fixed_parent != FIELD_UNKNOWN); |
2642 | g_assert(field2->fixed_parent != FIELD_UNKNOWN); |
2643 | g_assert(field1->fixed_size != FIELD_UNKNOWN); |
2644 | g_assert(field2->fixed_size != FIELD_UNKNOWN); |
2645 | |
2646 | type1 = field1->field_type; |
2647 | type2 = field2->field_type; |
2648 | |
77175651 |
2649 | if(type1->type_class != type2->type_class) { |
2650 | different = 1; |
2651 | goto end; |
2652 | } |
2653 | if(type1->element_name != type2->element_name) { |
2654 | different = 1; |
2655 | goto end; |
2656 | } |
2657 | |
2658 | switch(type1->type_class) { |
83e160f2 |
2659 | case LTT_INT_FIXED: |
2660 | case LTT_UINT_FIXED: |
2661 | case LTT_POINTER: |
2662 | case LTT_CHAR: |
2663 | case LTT_UCHAR: |
2664 | case LTT_SHORT: |
2665 | case LTT_USHORT: |
77175651 |
2666 | case LTT_INT: |
2667 | case LTT_UINT: |
2668 | case LTT_FLOAT: |
2669 | case LTT_POINTER: |
2670 | case LTT_LONG: |
2671 | case LTT_ULONG: |
2672 | case LTT_SIZE_T: |
2673 | case LTT_SSIZE_T: |
2674 | case LTT_OFF_T: |
2675 | if(field1->field_size != field2->field_size) { |
2676 | different = 1; |
2677 | goto end; |
2678 | } |
2679 | break; |
2680 | case LTT_ENUM: |
2681 | if(type1->element_number != type2->element_number) { |
2682 | different = 1; |
2683 | goto end; |
2684 | } |
2685 | for(i=0;i<type1->element_number;i++) { |
2686 | if(type1->enum_strings[i] != type2->enum_strings[i]) { |
2687 | different = 1; |
2688 | goto end; |
2689 | } |
2690 | } |
2691 | break; |
2692 | case LTT_SEQUENCE: |
2693 | /* Two elements : size and child */ |
2694 | g_assert(type1->element_number != type2->element_number); |
2695 | for(i=0;i<type1->element_number;i++) { |
2696 | if(check_fields_compatibility(event_type1, event_type2, |
2697 | field1->child[0], field2->child[0])) { |
2698 | different = 1; |
2699 | goto end; |
2700 | } |
2701 | } |
2702 | break; |
2703 | case LTT_STRING: |
2704 | break; |
2705 | case LTT_ARRAY: |
2706 | if(field1->field_size != field2->field_size) { |
2707 | different = 1; |
2708 | goto end; |
2709 | } |
2710 | /* Two elements : size and child */ |
2711 | g_assert(type1->element_number != type2->element_number); |
2712 | for(i=0;i<type1->element_number;i++) { |
2713 | if(check_fields_compatibility(event_type1, event_type2, |
2714 | field1->child[0], field2->child[0])) { |
2715 | different = 1; |
2716 | goto end; |
2717 | } |
2718 | } |
2719 | break; |
2720 | case LTT_STRUCT: |
2721 | case LTT_UNION: |
2722 | if(type1->element_number != type2->element_number) { |
2723 | different = 1; |
2724 | break; |
2725 | } |
2726 | for(i=0;i<type1->element_number;i++) { |
2727 | if(check_fields_compatibility(event_type1, event_type2, |
2728 | field1->child[0], field2->child[0])) { |
2729 | different = 1; |
2730 | goto end; |
2731 | } |
2732 | } |
2733 | break; |
2734 | } |
2735 | end: |
2736 | return different; |
2737 | } |
3aee1200 |
2738 | #endif //0 |
6cd62ccf |
2739 | |
f104d082 |
2740 | |
6cd62ccf |
2741 | /***************************************************************************** |
2742 | *Function name |
eed2ef37 |
2743 | * ltt_get_int : get an integer number |
6cd62ccf |
2744 | *Input params |
3aee1200 |
2745 | * reverse_byte_order: must we reverse the byte order ? |
6cd62ccf |
2746 | * size : the size of the integer |
3aee1200 |
2747 | * ptr : the data pointer |
6cd62ccf |
2748 | *Return value |
cf74a6f1 |
2749 | * gint64 : a 64 bits integer |
6cd62ccf |
2750 | ****************************************************************************/ |
2751 | |
eed2ef37 |
2752 | gint64 ltt_get_int(gboolean reverse_byte_order, gint size, void *data) |
6cd62ccf |
2753 | { |
3aee1200 |
2754 | gint64 val; |
cf74a6f1 |
2755 | |
2756 | switch(size) { |
3aee1200 |
2757 | case 1: val = *((gint8*)data); break; |
2758 | case 2: val = ltt_get_int16(reverse_byte_order, data); break; |
2759 | case 4: val = ltt_get_int32(reverse_byte_order, data); break; |
2760 | case 8: val = ltt_get_int64(reverse_byte_order, data); break; |
2761 | default: val = ltt_get_int64(reverse_byte_order, data); |
2762 | g_critical("get_int : integer size %d unknown", size); |
cf74a6f1 |
2763 | break; |
2764 | } |
2765 | |
3aee1200 |
2766 | return val; |
6cd62ccf |
2767 | } |
3aee1200 |
2768 | |
6cd62ccf |
2769 | /***************************************************************************** |
2770 | *Function name |
eed2ef37 |
2771 | * ltt_get_uint : get an unsigned integer number |
6cd62ccf |
2772 | *Input params |
3aee1200 |
2773 | * reverse_byte_order: must we reverse the byte order ? |
2774 | * size : the size of the integer |
2775 | * ptr : the data pointer |
2776 | *Return value |
2777 | * guint64 : a 64 bits unsigned integer |
6cd62ccf |
2778 | ****************************************************************************/ |
2779 | |
eed2ef37 |
2780 | guint64 ltt_get_uint(gboolean reverse_byte_order, gint size, void *data) |
6cd62ccf |
2781 | { |
3aee1200 |
2782 | guint64 val; |
2783 | |
2784 | switch(size) { |
2785 | case 1: val = *((gint8*)data); break; |
2786 | case 2: val = ltt_get_uint16(reverse_byte_order, data); break; |
2787 | case 4: val = ltt_get_uint32(reverse_byte_order, data); break; |
2788 | case 8: val = ltt_get_uint64(reverse_byte_order, data); break; |
2789 | default: val = ltt_get_uint64(reverse_byte_order, data); |
2790 | g_critical("get_uint : unsigned integer size %d unknown", |
2791 | size); |
2792 | break; |
2793 | } |
2794 | |
2795 | return val; |
6cd62ccf |
2796 | } |
3aee1200 |
2797 | |
2798 | |
a5dcde2f |
2799 | /* get the node name of the system */ |
2800 | |
2801 | char * ltt_trace_system_description_node_name (LttSystemDescription * s) |
2802 | { |
2803 | return s->node_name; |
2804 | } |
2805 | |
2806 | |
2807 | /* get the domain name of the system */ |
2808 | |
2809 | char * ltt_trace_system_description_domain_name (LttSystemDescription * s) |
2810 | { |
2811 | return s->domain_name; |
2812 | } |
2813 | |
2814 | |
2815 | /* get the description of the system */ |
2816 | |
2817 | char * ltt_trace_system_description_description (LttSystemDescription * s) |
2818 | { |
2819 | return s->description; |
2820 | } |
2821 | |
2822 | |
bf33dd50 |
2823 | /* get the NTP corrected start time of the trace */ |
7bd563ec |
2824 | LttTime ltt_trace_start_time(LttTrace *t) |
a5dcde2f |
2825 | { |
7bd563ec |
2826 | return t->start_time; |
a5dcde2f |
2827 | } |
2828 | |
bf33dd50 |
2829 | /* get the monotonic start time of the trace */ |
2830 | LttTime ltt_trace_start_time_monotonic(LttTrace *t) |
2831 | { |
2832 | return t->start_time_from_tsc; |
2833 | } |
2834 | |
8655430b |
2835 | static LttTracefile *ltt_tracefile_new() |
18206708 |
2836 | { |
afd57a3c |
2837 | LttTracefile *tf; |
2838 | tf = g_new(LttTracefile, 1); |
2839 | tf->event.tracefile = tf; |
2840 | return tf; |
18206708 |
2841 | } |
2842 | |
8655430b |
2843 | static void ltt_tracefile_destroy(LttTracefile *tf) |
18206708 |
2844 | { |
2845 | g_free(tf); |
2846 | } |
2847 | |
8655430b |
2848 | static void ltt_tracefile_copy(LttTracefile *dest, const LttTracefile *src) |
18206708 |
2849 | { |
2850 | *dest = *src; |
2851 | } |
2852 | |
3aee1200 |
2853 | /* Before library loading... */ |
2854 | |
8655430b |
2855 | static __attribute__((constructor)) void init(void) |
3aee1200 |
2856 | { |
2857 | LTT_FACILITY_NAME_HEARTBEAT = g_quark_from_string("heartbeat"); |
2858 | LTT_EVENT_NAME_HEARTBEAT = g_quark_from_string("heartbeat"); |
d1bb700c |
2859 | LTT_EVENT_NAME_HEARTBEAT_FULL = g_quark_from_string("heartbeat_full"); |
3aee1200 |
2860 | |
3865ea09 |
2861 | LTT_TRACEFILE_NAME_FACILITIES = g_quark_from_string("/control/facilities"); |
3aee1200 |
2862 | } |