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1 | /* This file is part of the Linux Trace Toolkit viewer |
3aee1200 |
2 | * Copyright (C) 2005 Mathieu Desnoyers |
449cb9d7 |
3 | * |
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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 | * |
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10 | * This library is distributed in the hope that it will be useful, |
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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. |
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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> |
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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> |
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35 | #include <malloc.h> |
36 | #include <sys/mman.h> |
dd3a6d39 |
37 | #include <string.h> |
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38 | |
ef35d837 |
39 | // For realpath |
40 | #include <limits.h> |
41 | #include <stdlib.h> |
42 | |
43 | |
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44 | #include "parser.h" |
a5dcde2f |
45 | #include <ltt/ltt.h> |
46 | #include "ltt-private.h" |
963b5f2d |
47 | #include <ltt/trace.h> |
c02ea99f |
48 | #include <ltt/event.h> |
29af7cfd |
49 | //#include <ltt/type.h> |
1a2ceb63 |
50 | #include <ltt/ltt-types.h> |
bb38a290 |
51 | #include <ltt/marker.h> |
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52 | |
53 | /* Facility names used in this file */ |
54 | |
55 | GQuark LTT_FACILITY_NAME_HEARTBEAT, |
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56 | LTT_EVENT_NAME_HEARTBEAT, |
57 | LTT_EVENT_NAME_HEARTBEAT_FULL; |
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58 | GQuark LTT_TRACEFILE_NAME_FACILITIES; |
59 | |
86005ded |
60 | #ifndef g_open |
61 | #define g_open open |
62 | #endif |
63 | |
64 | |
51b5991e |
65 | #define __UNUSED__ __attribute__((__unused__)) |
6cd62ccf |
66 | |
a1062ddd |
67 | #define g_info(format...) g_log (G_LOG_DOMAIN, G_LOG_LEVEL_INFO, format) |
3aee1200 |
68 | |
69 | #ifndef g_debug |
a1062ddd |
70 | #define g_debug(format...) g_log (G_LOG_DOMAIN, G_LOG_LEVEL_DEBUG, format) |
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71 | #endif |
a1062ddd |
72 | |
45e14832 |
73 | #define g_close close |
8959a0c8 |
74 | |
b77d1b57 |
75 | /* Those macros must be called from within a function where page_size is a known |
76 | * variable */ |
77 | #define PAGE_MASK (~(page_size-1)) |
78 | #define PAGE_ALIGN(addr) (((addr)+page_size-1)&PAGE_MASK) |
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 |
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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 |
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103 | |
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104 | /* go to the next event */ |
105 | static int ltt_seek_next_event(LttTracefile *tf); |
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106 | |
3c165eaf |
107 | //void ltt_update_event_size(LttTracefile *tf); |
eed2ef37 |
108 | |
3c165eaf |
109 | static int open_tracefiles(LttTrace *trace, gchar *root_path, |
110 | gchar *relative_path); |
111 | static int ltt_process_facility_tracefile(LttTracefile *tf); |
112 | static void ltt_tracefile_time_span_get(LttTracefile *tf, |
113 | LttTime *start, LttTime *end); |
114 | static void group_time_span_get(GQuark name, gpointer data, gpointer user_data); |
115 | static gint map_block(LttTracefile * tf, guint block_num); |
116 | static int ltt_seek_next_event(LttTracefile *tf); |
117 | static void __attribute__((constructor)) init(void); |
118 | static void ltt_update_event_size(LttTracefile *tf); |
119 | //void precompute_offsets(LttFacility *fac, LttEventType *event); |
2312de30 |
120 | |
3aee1200 |
121 | #if 0 |
43da6a59 |
122 | /* Functions to parse system.xml file (using glib xml parser) */ |
51b5991e |
123 | static void parser_start_element (GMarkupParseContext __UNUSED__ *context, |
43da6a59 |
124 | const gchar *element_name, |
125 | const gchar **attribute_names, |
126 | const gchar **attribute_values, |
127 | gpointer user_data, |
128 | GError **error) |
129 | { |
130 | int i=0; |
131 | LttSystemDescription* des = (LttSystemDescription* )user_data; |
132 | if(strcmp("system", element_name)){ |
2a74fbf4 |
133 | *error = g_error_new(G_MARKUP_ERROR, |
134 | G_LOG_LEVEL_WARNING, |
135 | "This is not system.xml file"); |
136 | return; |
43da6a59 |
137 | } |
138 | |
139 | while(attribute_names[i]){ |
140 | if(strcmp("node_name", attribute_names[i])==0){ |
141 | des->node_name = g_strdup(attribute_values[i]); |
142 | }else if(strcmp("domainname", attribute_names[i])==0){ |
143 | des->domain_name = g_strdup(attribute_values[i]); |
144 | }else if(strcmp("cpu", attribute_names[i])==0){ |
145 | des->nb_cpu = atoi(attribute_values[i]); |
146 | }else if(strcmp("arch_size", attribute_names[i])==0){ |
147 | if(strcmp(attribute_values[i],"LP32") == 0) des->size = LTT_LP32; |
148 | else if(strcmp(attribute_values[i],"ILP32") == 0) des->size = LTT_ILP32; |
149 | else if(strcmp(attribute_values[i],"LP64") == 0) des->size = LTT_LP64; |
150 | else if(strcmp(attribute_values[i],"ILP64") == 0) des->size = LTT_ILP64; |
151 | else if(strcmp(attribute_values[i],"UNKNOWN") == 0) des->size = LTT_UNKNOWN; |
152 | }else if(strcmp("endian", attribute_names[i])==0){ |
153 | if(strcmp(attribute_values[i],"LITTLE_ENDIAN") == 0) |
154 | des->endian = LTT_LITTLE_ENDIAN; |
155 | else if(strcmp(attribute_values[i],"BIG_ENDIAN") == 0) |
156 | des->endian = LTT_BIG_ENDIAN; |
157 | }else if(strcmp("kernel_name", attribute_names[i])==0){ |
158 | des->kernel_name = g_strdup(attribute_values[i]); |
159 | }else if(strcmp("kernel_release", attribute_names[i])==0){ |
160 | des->kernel_release = g_strdup(attribute_values[i]); |
161 | }else if(strcmp("kernel_version", attribute_names[i])==0){ |
162 | des->kernel_version = g_strdup(attribute_values[i]); |
163 | }else if(strcmp("machine", attribute_names[i])==0){ |
164 | des->machine = g_strdup(attribute_values[i]); |
165 | }else if(strcmp("processor", attribute_names[i])==0){ |
166 | des->processor = g_strdup(attribute_values[i]); |
167 | }else if(strcmp("hardware_platform", attribute_names[i])==0){ |
168 | des->hardware_platform = g_strdup(attribute_values[i]); |
169 | }else if(strcmp("operating_system", attribute_names[i])==0){ |
170 | des->operating_system = g_strdup(attribute_values[i]); |
171 | }else if(strcmp("ltt_major_version", attribute_names[i])==0){ |
172 | des->ltt_major_version = atoi(attribute_values[i]); |
173 | }else if(strcmp("ltt_minor_version", attribute_names[i])==0){ |
174 | des->ltt_minor_version = atoi(attribute_values[i]); |
175 | }else if(strcmp("ltt_block_size", attribute_names[i])==0){ |
176 | des->ltt_block_size = atoi(attribute_values[i]); |
177 | }else{ |
2a74fbf4 |
178 | *error = g_error_new(G_MARKUP_ERROR, |
179 | G_LOG_LEVEL_WARNING, |
180 | "Not a valid attribute"); |
181 | return; |
43da6a59 |
182 | } |
183 | i++; |
184 | } |
185 | } |
186 | |
51b5991e |
187 | static void parser_characters (GMarkupParseContext __UNUSED__ *context, |
43da6a59 |
188 | const gchar *text, |
51b5991e |
189 | gsize __UNUSED__ text_len, |
43da6a59 |
190 | gpointer user_data, |
51b5991e |
191 | GError __UNUSED__ **error) |
43da6a59 |
192 | { |
193 | LttSystemDescription* des = (LttSystemDescription* )user_data; |
194 | des->description = g_strdup(text); |
195 | } |
3aee1200 |
196 | #endif //0 |
f104d082 |
197 | |
3c165eaf |
198 | #if 0 |
77175651 |
199 | LttFacility *ltt_trace_get_facility_by_num(LttTrace *t, |
3aee1200 |
200 | guint num) |
201 | { |
202 | g_assert(num < t->facilities_by_num->len); |
203 | |
204 | return &g_array_index(t->facilities_by_num, LttFacility, num); |
205 | |
206 | } |
3c165eaf |
207 | #endif //0 |
43da6a59 |
208 | |
b56dcdf2 |
209 | guint ltt_trace_get_num_cpu(LttTrace *t) |
210 | { |
211 | return t->num_cpu; |
212 | } |
213 | |
43da6a59 |
214 | |
b7576a11 |
215 | /* trace can be NULL |
216 | * |
217 | * Return value : 0 success, 1 bad tracefile |
218 | */ |
219 | int parse_trace_header(void *header, LttTracefile *tf, LttTrace *t) |
220 | { |
221 | guint32 *magic_number = (guint32*)header; |
222 | struct ltt_trace_header_any *any = (struct ltt_trace_header_any *)header; |
223 | |
224 | if(*magic_number == LTT_MAGIC_NUMBER) |
225 | tf->reverse_bo = 0; |
226 | else if(*magic_number == LTT_REV_MAGIC_NUMBER) |
227 | tf->reverse_bo = 1; |
228 | else /* invalid magic number, bad tracefile ! */ |
229 | return 1; |
230 | |
231 | /* Get float byte order : might be different from int byte order |
232 | * (or is set to 0 if the trace has no float (kernel trace)) */ |
233 | tf->float_word_order = any->float_word_order; |
256a5b3a |
234 | tf->alignment = any->alignment; |
90440c06 |
235 | tf->has_heartbeat = any->has_heartbeat; |
b7576a11 |
236 | |
237 | if(t) { |
238 | t->arch_type = ltt_get_uint32(LTT_GET_BO(tf), |
239 | &any->arch_type); |
240 | t->arch_variant = ltt_get_uint32(LTT_GET_BO(tf), |
241 | &any->arch_variant); |
242 | t->arch_size = any->arch_size; |
243 | t->ltt_major_version = any->major_version; |
244 | t->ltt_minor_version = any->minor_version; |
245 | t->flight_recorder = any->flight_recorder; |
3c165eaf |
246 | // t->compact_facilities = NULL; |
b7576a11 |
247 | } |
248 | |
b7576a11 |
249 | switch(any->major_version) { |
250 | |
251 | case 0: |
3c165eaf |
252 | g_warning("Unsupported trace version : %hhu.%hhu", |
253 | any->major_version, any->minor_version); |
254 | return 1; |
255 | break; |
256 | case 1: |
b7576a11 |
257 | switch(any->minor_version) { |
3c165eaf |
258 | case 0: |
b7576a11 |
259 | { |
3c165eaf |
260 | struct ltt_trace_header_1_0 *vheader = |
261 | (struct ltt_trace_header_1_0 *)header; |
823820eb |
262 | tf->buffer_header_size = |
263 | sizeof(struct ltt_block_start_header) |
3c165eaf |
264 | + sizeof(struct ltt_trace_header_1_0); |
62e4e7bf |
265 | tf->tsc_lsb_truncate = vheader->tsc_lsb_truncate; |
266 | tf->tscbits = vheader->tscbits; |
267 | tf->tsc_msb_cutoff = 32 - tf->tsc_lsb_truncate - tf->tscbits; |
dd3a6d39 |
268 | tf->tsc_mask = ((1ULL << (tf->tscbits))-1); |
269 | tf->tsc_mask = tf->tsc_mask << tf->tsc_lsb_truncate; |
62e4e7bf |
270 | tf->tsc_mask_next_bit = (1ULL<<(tf->tscbits)); |
271 | tf->tsc_mask_next_bit = tf->tsc_mask_next_bit << tf->tsc_lsb_truncate; |
e939e5b2 |
272 | if(t) { |
273 | t->start_freq = ltt_get_uint64(LTT_GET_BO(tf), |
274 | &vheader->start_freq); |
a3999b49 |
275 | t->freq_scale = ltt_get_uint32(LTT_GET_BO(tf), |
276 | &vheader->freq_scale); |
e939e5b2 |
277 | t->start_tsc = ltt_get_uint64(LTT_GET_BO(tf), |
278 | &vheader->start_tsc); |
279 | t->start_monotonic = ltt_get_uint64(LTT_GET_BO(tf), |
280 | &vheader->start_monotonic); |
281 | t->start_time.tv_sec = ltt_get_uint64(LTT_GET_BO(tf), |
282 | &vheader->start_time_sec); |
283 | t->start_time.tv_nsec = ltt_get_uint64(LTT_GET_BO(tf), |
284 | &vheader->start_time_usec); |
285 | t->start_time.tv_nsec *= 1000; /* microsec to nanosec */ |
286 | |
287 | t->start_time_from_tsc = ltt_time_from_uint64( |
c7f86478 |
288 | (double)t->start_tsc |
289 | * (1000000000.0 / tf->trace->freq_scale) |
62e4e7bf |
290 | / (double)t->start_freq); |
291 | t->compact_event_bits = 0; |
e939e5b2 |
292 | } |
293 | } |
294 | break; |
b7576a11 |
295 | default: |
986e2a7c |
296 | g_warning("Unsupported trace version : %hhu.%hhu", |
3c165eaf |
297 | any->major_version, any->minor_version); |
b7576a11 |
298 | return 1; |
299 | } |
300 | break; |
b7576a11 |
301 | default: |
302 | g_warning("Unsupported trace version : %hhu.%hhu", |
303 | any->major_version, any->minor_version); |
304 | return 1; |
305 | } |
306 | |
307 | |
308 | return 0; |
309 | } |
310 | |
311 | |
312 | |
6cd62ccf |
313 | /***************************************************************************** |
314 | *Function name |
963b5f2d |
315 | * ltt_tracefile_open : open a trace file, construct a LttTracefile |
6cd62ccf |
316 | *Input params |
963b5f2d |
317 | * t : the trace containing the tracefile |
318 | * fileName : path name of the trace file |
3aee1200 |
319 | * tf : the tracefile structure |
6cd62ccf |
320 | *Return value |
3aee1200 |
321 | * : 0 for success, -1 otherwise. |
6cd62ccf |
322 | ****************************************************************************/ |
323 | |
3aee1200 |
324 | gint ltt_tracefile_open(LttTrace *t, gchar * fileName, LttTracefile *tf) |
6cd62ccf |
325 | { |
963b5f2d |
326 | struct stat lTDFStat; /* Trace data file status */ |
3aee1200 |
327 | struct ltt_block_start_header *header; |
b77d1b57 |
328 | int page_size = getpagesize(); |
6cd62ccf |
329 | |
330 | //open the file |
d3d34f49 |
331 | tf->long_name = g_quark_from_string(fileName); |
963b5f2d |
332 | tf->trace = t; |
3865ea09 |
333 | tf->fd = open(fileName, O_RDONLY); |
6cd62ccf |
334 | if(tf->fd < 0){ |
2a74fbf4 |
335 | g_warning("Unable to open input data file %s\n", fileName); |
3aee1200 |
336 | goto end; |
6cd62ccf |
337 | } |
338 | |
339 | // Get the file's status |
340 | if(fstat(tf->fd, &lTDFStat) < 0){ |
2a74fbf4 |
341 | g_warning("Unable to get the status of the input data file %s\n", fileName); |
3aee1200 |
342 | goto close_file; |
6cd62ccf |
343 | } |
344 | |
345 | // Is the file large enough to contain a trace |
823820eb |
346 | if(lTDFStat.st_size < |
9ea7b94b |
347 | (off_t)(sizeof(struct ltt_block_start_header) |
348 | + sizeof(struct ltt_trace_header_any))){ |
8710c6c7 |
349 | g_print("The input data file %s does not contain a trace\n", fileName); |
3aee1200 |
350 | goto close_file; |
351 | } |
352 | |
353 | /* Temporarily map the buffer start header to get trace information */ |
354 | /* Multiple of pages aligned head */ |
b77d1b57 |
355 | tf->buffer.head = mmap(0, |
9ea7b94b |
356 | PAGE_ALIGN(sizeof(struct ltt_block_start_header) |
357 | + sizeof(struct ltt_trace_header_any)), PROT_READ, |
3aee1200 |
358 | MAP_PRIVATE, tf->fd, 0); |
3865ea09 |
359 | if(tf->buffer.head == MAP_FAILED) { |
3aee1200 |
360 | perror("Error in allocating memory for buffer of tracefile"); |
361 | goto close_file; |
6cd62ccf |
362 | } |
3865ea09 |
363 | g_assert( ( (guint)tf->buffer.head&(8-1) ) == 0); // make sure it's aligned. |
3aee1200 |
364 | |
365 | header = (struct ltt_block_start_header*)tf->buffer.head; |
6cd62ccf |
366 | |
51551c6f |
367 | if(parse_trace_header(header->trace, tf, NULL)) { |
368 | g_warning("parse_trace_header error"); |
369 | goto unmap_file; |
370 | } |
3aee1200 |
371 | |
6cd62ccf |
372 | //store the size of the file |
373 | tf->file_size = lTDFStat.st_size; |
f628823c |
374 | tf->buf_size = ltt_get_uint32(LTT_GET_BO(tf), &header->buf_size); |
375 | tf->num_blocks = tf->file_size / tf->buf_size; |
376 | |
377 | if(munmap(tf->buffer.head, |
9ea7b94b |
378 | PAGE_ALIGN(sizeof(struct ltt_block_start_header) |
379 | + sizeof(struct ltt_trace_header_any)))) { |
f628823c |
380 | g_warning("unmap size : %u\n", |
9ea7b94b |
381 | PAGE_ALIGN(sizeof(struct ltt_block_start_header) |
382 | + sizeof(struct ltt_trace_header_any))); |
f628823c |
383 | perror("munmap error"); |
384 | g_assert(0); |
385 | } |
3aee1200 |
386 | tf->buffer.head = NULL; |
6cd62ccf |
387 | |
963b5f2d |
388 | //read the first block |
3aee1200 |
389 | if(map_block(tf,0)) { |
390 | perror("Cannot map block for tracefile"); |
391 | goto close_file; |
392 | } |
393 | |
394 | return 0; |
6cd62ccf |
395 | |
3aee1200 |
396 | /* Error */ |
397 | unmap_file: |
f628823c |
398 | if(munmap(tf->buffer.head, |
9ea7b94b |
399 | PAGE_ALIGN(sizeof(struct ltt_block_start_header) |
400 | + sizeof(struct ltt_trace_header_any)))) { |
f628823c |
401 | g_warning("unmap size : %u\n", |
9ea7b94b |
402 | PAGE_ALIGN(sizeof(struct ltt_block_start_header) |
403 | + sizeof(struct ltt_trace_header_any))); |
f628823c |
404 | perror("munmap error"); |
405 | g_assert(0); |
406 | } |
3aee1200 |
407 | close_file: |
3865ea09 |
408 | close(tf->fd); |
3aee1200 |
409 | end: |
410 | return -1; |
6cd62ccf |
411 | } |
412 | |
d3d34f49 |
413 | LttTrace *ltt_tracefile_get_trace(LttTracefile *tf) |
414 | { |
415 | return tf->trace; |
416 | } |
417 | |
3aee1200 |
418 | #if 0 |
6cd62ccf |
419 | /***************************************************************************** |
963b5f2d |
420 | *Open control and per cpu tracefiles |
6cd62ccf |
421 | ****************************************************************************/ |
422 | |
45e14832 |
423 | void ltt_tracefile_open_cpu(LttTrace *t, gchar * tracefile_name) |
6cd62ccf |
424 | { |
963b5f2d |
425 | LttTracefile * tf; |
426 | tf = ltt_tracefile_open(t,tracefile_name); |
4a6c8e36 |
427 | if(!tf) return; |
963b5f2d |
428 | t->per_cpu_tracefile_number++; |
429 | g_ptr_array_add(t->per_cpu_tracefiles, tf); |
6cd62ccf |
430 | } |
431 | |
45e14832 |
432 | gint ltt_tracefile_open_control(LttTrace *t, gchar * control_name) |
6cd62ccf |
433 | { |
963b5f2d |
434 | LttTracefile * tf; |
c02ea99f |
435 | LttEvent ev; |
963b5f2d |
436 | LttFacility * f; |
963b5f2d |
437 | void * pos; |
438 | FacilityLoad fLoad; |
8d1e6362 |
439 | unsigned int i; |
963b5f2d |
440 | |
441 | tf = ltt_tracefile_open(t,control_name); |
2a74fbf4 |
442 | if(!tf) { |
443 | g_warning("ltt_tracefile_open_control : bad file descriptor"); |
444 | return -1; |
445 | } |
963b5f2d |
446 | t->control_tracefile_number++; |
447 | g_ptr_array_add(t->control_tracefiles,tf); |
448 | |
449 | //parse facilities tracefile to get base_id |
542ceddd |
450 | if(strcmp(&control_name[strlen(control_name)-10],"facilities") ==0){ |
963b5f2d |
451 | while(1){ |
c02ea99f |
452 | if(!ltt_tracefile_read(tf,&ev)) return 0; // end of file |
40331ba8 |
453 | |
c02ea99f |
454 | if(ev.event_id == TRACE_FACILITY_LOAD){ |
455 | pos = ev.data; |
45e14832 |
456 | fLoad.name = (gchar*)pos; |
47a166fc |
457 | fLoad.checksum = *(LttChecksum*)(pos + strlen(fLoad.name)); |
cbd41522 |
458 | fLoad.base_code = *(guint32 *)(pos + strlen(fLoad.name) + sizeof(LttChecksum)); |
963b5f2d |
459 | |
460 | for(i=0;i<t->facility_number;i++){ |
461 | f = (LttFacility*)g_ptr_array_index(t->facilities,i); |
462 | if(strcmp(f->name,fLoad.name)==0 && fLoad.checksum==f->checksum){ |
463 | f->base_id = fLoad.base_code; |
464 | break; |
465 | } |
466 | } |
2a74fbf4 |
467 | if(i==t->facility_number) { |
8d1e6362 |
468 | g_warning("Facility: %s, checksum: %u is not found", |
469 | fLoad.name,(unsigned int)fLoad.checksum); |
2a74fbf4 |
470 | return -1; |
471 | } |
c02ea99f |
472 | }else if(ev.event_id == TRACE_BLOCK_START){ |
40331ba8 |
473 | continue; |
c02ea99f |
474 | }else if(ev.event_id == TRACE_BLOCK_END){ |
40331ba8 |
475 | break; |
2a74fbf4 |
476 | }else { |
8d1e6362 |
477 | g_warning("Not valid facilities trace file"); |
2a74fbf4 |
478 | return -1; |
479 | } |
963b5f2d |
480 | } |
481 | } |
2a74fbf4 |
482 | return 0; |
6cd62ccf |
483 | } |
3aee1200 |
484 | #endif //0 |
6cd62ccf |
485 | |
486 | /***************************************************************************** |
487 | *Function name |
963b5f2d |
488 | * ltt_tracefile_close: close a trace file, |
6cd62ccf |
489 | *Input params |
963b5f2d |
490 | * t : tracefile which will be closed |
6cd62ccf |
491 | ****************************************************************************/ |
492 | |
963b5f2d |
493 | void ltt_tracefile_close(LttTracefile *t) |
6cd62ccf |
494 | { |
f628823c |
495 | int page_size = getpagesize(); |
496 | |
3aee1200 |
497 | if(t->buffer.head != NULL) |
f628823c |
498 | if(munmap(t->buffer.head, PAGE_ALIGN(t->buf_size))) { |
499 | g_warning("unmap size : %u\n", |
500 | PAGE_ALIGN(t->buf_size)); |
501 | perror("munmap error"); |
502 | g_assert(0); |
503 | } |
504 | |
3865ea09 |
505 | close(t->fd); |
963b5f2d |
506 | } |
6cd62ccf |
507 | |
6cd62ccf |
508 | |
963b5f2d |
509 | /***************************************************************************** |
510 | *Get system information |
511 | ****************************************************************************/ |
3aee1200 |
512 | #if 0 |
45e14832 |
513 | gint getSystemInfo(LttSystemDescription* des, gchar * pathname) |
963b5f2d |
514 | { |
45e14832 |
515 | int fd; |
516 | GIOChannel *iochan; |
517 | gchar *buf = NULL; |
518 | gsize length; |
43da6a59 |
519 | |
520 | GMarkupParseContext * context; |
2a74fbf4 |
521 | GError * error = NULL; |
43da6a59 |
522 | GMarkupParser markup_parser = |
523 | { |
524 | parser_start_element, |
8d1e6362 |
525 | NULL, |
43da6a59 |
526 | parser_characters, |
527 | NULL, /* passthrough */ |
528 | NULL /* error */ |
529 | }; |
963b5f2d |
530 | |
45e14832 |
531 | fd = g_open(pathname, O_RDONLY, 0); |
532 | if(fd == -1){ |
2a74fbf4 |
533 | g_warning("Can not open file : %s\n", pathname); |
534 | return -1; |
6cd62ccf |
535 | } |
963b5f2d |
536 | |
45e14832 |
537 | iochan = g_io_channel_unix_new(fd); |
538 | |
43da6a59 |
539 | context = g_markup_parse_context_new(&markup_parser, 0, des,NULL); |
6cd62ccf |
540 | |
45e14832 |
541 | //while(fgets(buf,DIR_NAME_SIZE, fp) != NULL){ |
542 | while(g_io_channel_read_line(iochan, &buf, &length, NULL, &error) |
543 | != G_IO_STATUS_EOF) { |
544 | |
545 | if(error != NULL) { |
546 | g_warning("Can not read xml file: \n%s\n", error->message); |
547 | g_error_free(error); |
548 | } |
549 | if(!g_markup_parse_context_parse(context, buf, length, &error)){ |
2a74fbf4 |
550 | if(error != NULL) { |
551 | g_warning("Can not parse xml file: \n%s\n", error->message); |
552 | g_error_free(error); |
553 | } |
554 | g_markup_parse_context_free(context); |
45e14832 |
555 | |
556 | g_io_channel_shutdown(iochan, FALSE, &error); /* No flush */ |
557 | if(error != NULL) { |
558 | g_warning("Can not close file: \n%s\n", error->message); |
559 | g_error_free(error); |
560 | } |
561 | |
562 | close(fd); |
2a74fbf4 |
563 | return -1; |
43da6a59 |
564 | } |
963b5f2d |
565 | } |
2a74fbf4 |
566 | g_markup_parse_context_free(context); |
45e14832 |
567 | |
568 | g_io_channel_shutdown(iochan, FALSE, &error); /* No flush */ |
569 | if(error != NULL) { |
570 | g_warning("Can not close file: \n%s\n", error->message); |
571 | g_error_free(error); |
572 | } |
573 | |
574 | g_close(fd); |
575 | |
576 | g_free(buf); |
2a74fbf4 |
577 | return 0; |
6cd62ccf |
578 | } |
3aee1200 |
579 | #endif //0 |
6cd62ccf |
580 | |
581 | /***************************************************************************** |
963b5f2d |
582 | *The following functions get facility/tracefile information |
6cd62ccf |
583 | ****************************************************************************/ |
3aee1200 |
584 | #if 0 |
45e14832 |
585 | gint getFacilityInfo(LttTrace *t, gchar* eventdefs) |
6cd62ccf |
586 | { |
45e14832 |
587 | GDir * dir; |
588 | const gchar * name; |
8d1e6362 |
589 | unsigned int i,j; |
963b5f2d |
590 | LttFacility * f; |
591 | LttEventType * et; |
45e14832 |
592 | gchar fullname[DIR_NAME_SIZE]; |
593 | GError * error = NULL; |
594 | |
595 | dir = g_dir_open(eventdefs, 0, &error); |
963b5f2d |
596 | |
45e14832 |
597 | if(error != NULL) { |
598 | g_warning("Can not open directory: %s, %s\n", eventdefs, error->message); |
599 | g_error_free(error); |
2a74fbf4 |
600 | return -1; |
601 | } |
963b5f2d |
602 | |
45e14832 |
603 | while((name = g_dir_read_name(dir)) != NULL){ |
604 | if(!g_pattern_match_simple("*.xml", name)) continue; |
605 | strcpy(fullname,eventdefs); |
606 | strcat(fullname,name); |
607 | ltt_facility_open(t,fullname); |
608 | } |
609 | g_dir_close(dir); |
963b5f2d |
610 | |
963b5f2d |
611 | for(j=0;j<t->facility_number;j++){ |
8710c6c7 |
612 | f = (LttFacility*)g_ptr_array_index(t->facilities, j); |
963b5f2d |
613 | for(i=0; i<f->event_number; i++){ |
614 | et = f->events[i]; |
40331ba8 |
615 | setFieldsOffset(NULL, et, NULL, t); |
963b5f2d |
616 | } |
617 | } |
2a74fbf4 |
618 | return 0; |
963b5f2d |
619 | } |
3aee1200 |
620 | #endif //0 |
6cd62ccf |
621 | |
963b5f2d |
622 | /***************************************************************************** |
623 | *A trace is specified as a pathname to the directory containing all the |
624 | *associated data (control tracefiles, per cpu tracefiles, event |
625 | *descriptions...). |
626 | * |
627 | *When a trace is closed, all the associated facilities, types and fields |
628 | *are released as well. |
8d1e6362 |
629 | */ |
630 | |
631 | |
632 | /**************************************************************************** |
633 | * get_absolute_pathname |
803229fa |
634 | * |
8d1e6362 |
635 | * return the unique pathname in the system |
636 | * |
ef35d837 |
637 | * MD : Fixed this function so it uses realpath, dealing well with |
638 | * forgotten cases (.. were not used correctly before). |
803229fa |
639 | * |
963b5f2d |
640 | ****************************************************************************/ |
45e14832 |
641 | void get_absolute_pathname(const gchar *pathname, gchar * abs_pathname) |
9f797243 |
642 | { |
9f797243 |
643 | abs_pathname[0] = '\0'; |
803229fa |
644 | |
ef35d837 |
645 | if ( realpath (pathname, abs_pathname) != NULL) |
646 | return; |
647 | else |
648 | { |
8d1e6362 |
649 | /* error, return the original path unmodified */ |
ef35d837 |
650 | strcpy(abs_pathname, pathname); |
9f797243 |
651 | return; |
652 | } |
ef35d837 |
653 | return; |
9f797243 |
654 | } |
655 | |
3aee1200 |
656 | /* Search for something like : .*_.* |
657 | * |
658 | * The left side is the name, the right side is the number. |
659 | */ |
660 | |
ae3d0f50 |
661 | int get_tracefile_name_number(gchar *raw_name, |
3aee1200 |
662 | GQuark *name, |
ae3d0f50 |
663 | guint *num, |
62e4e7bf |
664 | guint *tid, |
665 | guint *pgid, |
666 | guint64 *creation) |
6cd62ccf |
667 | { |
3aee1200 |
668 | guint raw_name_len = strlen(raw_name); |
669 | gchar char_name[PATH_MAX]; |
3aee1200 |
670 | int i; |
671 | int underscore_pos; |
672 | long int cpu_num; |
673 | gchar *endptr; |
62e4e7bf |
674 | gchar *tmpptr; |
3aee1200 |
675 | |
676 | for(i=raw_name_len-1;i>=0;i--) { |
677 | if(raw_name[i] == '_') break; |
678 | } |
ae3d0f50 |
679 | if(i==-1) { /* Either not found or name length is 0 */ |
62e4e7bf |
680 | /* This is a userspace tracefile */ |
681 | strncpy(char_name, raw_name, raw_name_len); |
682 | char_name[raw_name_len] = '\0'; |
683 | *name = g_quark_from_string(char_name); |
684 | *num = 0; /* unknown cpu */ |
685 | for(i=0;i<raw_name_len;i++) { |
686 | if(raw_name[i] == '/') { |
687 | break; |
688 | } |
689 | } |
690 | i++; |
691 | for(;i<raw_name_len;i++) { |
692 | if(raw_name[i] == '/') { |
693 | break; |
694 | } |
695 | } |
696 | i++; |
697 | for(;i<raw_name_len;i++) { |
698 | if(raw_name[i] == '-') { |
699 | break; |
700 | } |
701 | } |
702 | if(i == raw_name_len) return -1; |
703 | i++; |
704 | tmpptr = &raw_name[i]; |
705 | for(;i<raw_name_len;i++) { |
706 | if(raw_name[i] == '.') { |
707 | raw_name[i] = ' '; |
708 | break; |
709 | } |
710 | } |
711 | *tid = strtoul(tmpptr, &endptr, 10); |
712 | if(endptr == tmpptr) |
713 | return -1; /* No digit */ |
714 | if(*tid == ULONG_MAX) |
715 | return -1; /* underflow / overflow */ |
716 | i++; |
717 | tmpptr = &raw_name[i]; |
718 | for(;i<raw_name_len;i++) { |
719 | if(raw_name[i] == '.') { |
720 | raw_name[i] = ' '; |
721 | break; |
722 | } |
723 | } |
724 | *pgid = strtoul(tmpptr, &endptr, 10); |
725 | if(endptr == tmpptr) |
726 | return -1; /* No digit */ |
727 | if(*pgid == ULONG_MAX) |
728 | return -1; /* underflow / overflow */ |
729 | i++; |
730 | tmpptr = &raw_name[i]; |
731 | *creation = strtoull(tmpptr, &endptr, 10); |
732 | if(endptr == tmpptr) |
733 | return -1; /* No digit */ |
734 | if(*creation == G_MAXUINT64) |
735 | return -1; /* underflow / overflow */ |
736 | } else { |
737 | underscore_pos = i; |
738 | |
739 | cpu_num = strtol(raw_name+underscore_pos+1, &endptr, 10); |
740 | |
741 | if(endptr == raw_name+underscore_pos+1) |
742 | return -1; /* No digit */ |
743 | if(cpu_num == LONG_MIN || cpu_num == LONG_MAX) |
744 | return -1; /* underflow / overflow */ |
745 | |
746 | strncpy(char_name, raw_name, underscore_pos); |
747 | char_name[underscore_pos] = '\0'; |
748 | |
749 | *name = g_quark_from_string(char_name); |
750 | *num = cpu_num; |
751 | } |
69bd59ed |
752 | |
b333a76b |
753 | |
3aee1200 |
754 | return 0; |
755 | } |
963b5f2d |
756 | |
3aee1200 |
757 | |
3865ea09 |
758 | GData **ltt_trace_get_tracefiles_groups(LttTrace *trace) |
77175651 |
759 | { |
3865ea09 |
760 | return &trace->tracefiles; |
77175651 |
761 | } |
762 | |
763 | |
3865ea09 |
764 | void compute_tracefile_group(GQuark key_id, |
765 | GArray *group, |
766 | struct compute_tracefile_group_args *args) |
77175651 |
767 | { |
768 | int i; |
769 | LttTracefile *tf; |
770 | |
771 | for(i=0; i<group->len; i++) { |
772 | tf = &g_array_index (group, LttTracefile, i); |
773 | if(tf->cpu_online) |
3865ea09 |
774 | args->func(tf, args->func_args); |
77175651 |
775 | } |
776 | } |
777 | |
778 | |
3aee1200 |
779 | void ltt_tracefile_group_destroy(gpointer data) |
780 | { |
781 | GArray *group = (GArray *)data; |
782 | int i; |
783 | LttTracefile *tf; |
784 | |
785 | for(i=0; i<group->len; i++) { |
786 | tf = &g_array_index (group, LttTracefile, i); |
787 | if(tf->cpu_online) |
788 | ltt_tracefile_close(tf); |
789 | } |
790 | g_array_free(group, TRUE); |
6cd62ccf |
791 | } |
792 | |
3aee1200 |
793 | gboolean ltt_tracefile_group_has_cpu_online(gpointer data) |
49bf71b5 |
794 | { |
3aee1200 |
795 | GArray *group = (GArray *)data; |
796 | int i; |
797 | LttTracefile *tf; |
798 | |
799 | for(i=0; i<group->len; i++) { |
800 | tf = &g_array_index (group, LttTracefile, i); |
3c165eaf |
801 | if(tf->cpu_online) |
802 | return 1; |
3aee1200 |
803 | } |
804 | return 0; |
49bf71b5 |
805 | } |
806 | |
807 | |
3aee1200 |
808 | /* Open each tracefile under a specific directory. Put them in a |
809 | * GData : permits to access them using their tracefile group pathname. |
810 | * i.e. access control/modules tracefile group by index : |
811 | * "control/module". |
3865ea09 |
812 | * |
813 | * relative path is the path relative to the trace root |
814 | * root path is the full path |
3aee1200 |
815 | * |
4a55f63e |
816 | * A tracefile group is simply an array where all the per cpu tracefiles sit. |
3aee1200 |
817 | */ |
818 | |
3c165eaf |
819 | int open_tracefiles(LttTrace *trace, gchar *root_path, gchar *relative_path) |
f7afe191 |
820 | { |
62e4e7bf |
821 | DIR *dir = opendir(root_path); |
822 | struct dirent *entry; |
823 | struct stat stat_buf; |
824 | int ret; |
3865ea09 |
825 | |
62e4e7bf |
826 | gchar path[PATH_MAX]; |
827 | int path_len; |
828 | gchar *path_ptr; |
3aee1200 |
829 | |
3865ea09 |
830 | int rel_path_len; |
69bd59ed |
831 | gchar rel_path[PATH_MAX]; |
832 | gchar *rel_path_ptr; |
cb03932a |
833 | LttTracefile tmp_tf; |
3865ea09 |
834 | |
62e4e7bf |
835 | if(dir == NULL) { |
836 | perror(root_path); |
837 | return ENOENT; |
838 | } |
3aee1200 |
839 | |
62e4e7bf |
840 | strncpy(path, root_path, PATH_MAX-1); |
841 | path_len = strlen(path); |
842 | path[path_len] = '/'; |
843 | path_len++; |
844 | path_ptr = path + path_len; |
3aee1200 |
845 | |
3865ea09 |
846 | strncpy(rel_path, relative_path, PATH_MAX-1); |
847 | rel_path_len = strlen(rel_path); |
848 | rel_path[rel_path_len] = '/'; |
849 | rel_path_len++; |
850 | rel_path_ptr = rel_path + rel_path_len; |
851 | |
62e4e7bf |
852 | while((entry = readdir(dir)) != NULL) { |
853 | |
854 | if(entry->d_name[0] == '.') continue; |
855 | |
856 | strncpy(path_ptr, entry->d_name, PATH_MAX - path_len); |
857 | strncpy(rel_path_ptr, entry->d_name, PATH_MAX - rel_path_len); |
858 | |
859 | ret = stat(path, &stat_buf); |
860 | if(ret == -1) { |
861 | perror(path); |
862 | continue; |
863 | } |
864 | |
865 | g_debug("Tracefile file or directory : %s\n", path); |
866 | |
74a588bb |
867 | if(strcmp(rel_path, "/eventdefs") == 0) continue; |
868 | |
62e4e7bf |
869 | if(S_ISDIR(stat_buf.st_mode)) { |
3aee1200 |
870 | |
62e4e7bf |
871 | g_debug("Entering subdirectory...\n"); |
872 | ret = open_tracefiles(trace, path, rel_path); |
873 | if(ret < 0) continue; |
874 | } else if(S_ISREG(stat_buf.st_mode)) { |
875 | GQuark name; |
ae3d0f50 |
876 | guint num, tid, pgid; |
62e4e7bf |
877 | guint64 creation; |
3aee1200 |
878 | GArray *group; |
ae3d0f50 |
879 | num = tid = pgid = 0; |
62e4e7bf |
880 | creation = 0; |
ae3d0f50 |
881 | if(get_tracefile_name_number(rel_path, &name, &num, &tid, &pgid, &creation)) |
3aee1200 |
882 | continue; /* invalid name */ |
3865ea09 |
883 | |
62e4e7bf |
884 | g_debug("Opening file.\n"); |
cb03932a |
885 | if(ltt_tracefile_open(trace, path, &tmp_tf)) { |
886 | g_info("Error opening tracefile %s", path); |
887 | |
888 | continue; /* error opening the tracefile : bad magic number ? */ |
889 | } |
890 | |
3865ea09 |
891 | g_debug("Tracefile name is %s and number is %u", |
892 | g_quark_to_string(name), num); |
893 | |
cb03932a |
894 | tmp_tf.cpu_online = 1; |
895 | tmp_tf.cpu_num = num; |
d3d34f49 |
896 | tmp_tf.name = name; |
62e4e7bf |
897 | tmp_tf.tid = tid; |
898 | tmp_tf.pgid = pgid; |
899 | tmp_tf.creation = creation; |
d1bb700c |
900 | if(tmp_tf.name == g_quark_from_string("/compact") |
62e4e7bf |
901 | || tmp_tf.name == g_quark_from_string("/flight-compact")) |
902 | tmp_tf.compact = 1; |
d1bb700c |
903 | else |
62e4e7bf |
904 | tmp_tf.compact = 0; |
3865ea09 |
905 | group = g_datalist_id_get_data(&trace->tracefiles, name); |
3aee1200 |
906 | if(group == NULL) { |
907 | /* Elements are automatically cleared when the array is allocated. |
908 | * It makes the cpu_online variable set to 0 : cpu offline, by default. |
909 | */ |
910 | group = g_array_sized_new (FALSE, TRUE, sizeof(LttTracefile), 10); |
3865ea09 |
911 | g_datalist_id_set_data_full(&trace->tracefiles, name, |
3aee1200 |
912 | group, ltt_tracefile_group_destroy); |
913 | } |
cb03932a |
914 | |
3aee1200 |
915 | /* Add the per cpu tracefile to the named group */ |
916 | unsigned int old_len = group->len; |
917 | if(num+1 > old_len) |
918 | group = g_array_set_size(group, num+1); |
cb03932a |
919 | g_array_index (group, LttTracefile, num) = tmp_tf; |
3aee1200 |
920 | |
62e4e7bf |
921 | } |
922 | } |
923 | |
924 | closedir(dir); |
3aee1200 |
925 | |
62e4e7bf |
926 | return 0; |
f7afe191 |
927 | } |
928 | |
3aee1200 |
929 | /* ltt_get_facility_description |
930 | * |
29e7c5b3 |
931 | * Opens the file corresponding to the requested facility (identified by fac_id |
3aee1200 |
932 | * and checksum). |
933 | * |
934 | * The name searched is : %trace root%/eventdefs/facname_checksum.xml |
935 | * |
936 | * Returns 0 on success, or 1 on failure. |
937 | */ |
3c165eaf |
938 | #if 0 |
3aee1200 |
939 | static int ltt_get_facility_description(LttFacility *f, |
940 | LttTrace *t, |
941 | LttTracefile *fac_tf) |
6cd62ccf |
942 | { |
3aee1200 |
943 | char desc_file_name[PATH_MAX]; |
944 | const gchar *text; |
945 | guint textlen; |
946 | gint err; |
62e4e7bf |
947 | gint arch_spec; |
948 | gint fac_name_len; |
3aee1200 |
949 | |
950 | text = g_quark_to_string(t->pathname); |
951 | textlen = strlen(text); |
952 | |
953 | if(textlen >= PATH_MAX) goto name_error; |
954 | strcpy(desc_file_name, text); |
955 | |
956 | text = "/eventdefs/"; |
957 | textlen+=strlen(text); |
958 | if(textlen >= PATH_MAX) goto name_error; |
959 | strcat(desc_file_name, text); |
960 | |
961 | text = g_quark_to_string(f->name); |
62e4e7bf |
962 | fac_name_len = strlen(text); |
f5d7967f |
963 | textlen+=fac_name_len; |
3aee1200 |
964 | if(textlen >= PATH_MAX) goto name_error; |
965 | strcat(desc_file_name, text); |
f5d7967f |
966 | |
62e4e7bf |
967 | /* arch specific facilities are named like this : name_arch */ |
968 | if(fac_name_len+1 < sizeof("_arch")) |
969 | arch_spec = 0; |
970 | else { |
971 | if(!strcmp(&text[fac_name_len+1-sizeof("_arch")], "_arch")) |
972 | arch_spec = 1; |
973 | else |
974 | arch_spec = 0; |
975 | } |
f5d7967f |
976 | |
29e7c5b3 |
977 | #if 0 |
3aee1200 |
978 | text = "_"; |
979 | textlen+=strlen(text); |
980 | if(textlen >= PATH_MAX) goto name_error; |
981 | strcat(desc_file_name, text); |
963b5f2d |
982 | |
3aee1200 |
983 | err = snprintf(desc_file_name+textlen, PATH_MAX-textlen-1, |
984 | "%u", f->checksum); |
d2083cab |
985 | if(err < 0) goto name_error; |
3aee1200 |
986 | |
987 | textlen=strlen(desc_file_name); |
988 | |
29e7c5b3 |
989 | #endif //0 |
62e4e7bf |
990 | |
991 | if(arch_spec) { |
992 | switch(t->arch_type) { |
993 | case LTT_ARCH_TYPE_I386: |
994 | text = "_i386"; |
995 | break; |
996 | case LTT_ARCH_TYPE_PPC: |
997 | text = "_ppc"; |
998 | break; |
999 | case LTT_ARCH_TYPE_SH: |
1000 | text = "_sh"; |
1001 | break; |
1002 | case LTT_ARCH_TYPE_S390: |
1003 | text = "_s390"; |
1004 | break; |
1005 | case LTT_ARCH_TYPE_MIPS: |
1006 | text = "_mips"; |
1007 | break; |
1008 | case LTT_ARCH_TYPE_ARM: |
1009 | text = "_arm"; |
1010 | break; |
1011 | case LTT_ARCH_TYPE_PPC64: |
1012 | text = "_ppc64"; |
1013 | break; |
1014 | case LTT_ARCH_TYPE_X86_64: |
1015 | text = "_x86_64"; |
1016 | break; |
1017 | case LTT_ARCH_TYPE_C2: |
1018 | text = "_c2"; |
1019 | break; |
1020 | case LTT_ARCH_TYPE_POWERPC: |
1021 | text = "_powerpc"; |
1022 | break; |
1023 | default: |
1024 | g_error("Trace from unsupported architecture."); |
1025 | } |
1026 | textlen+=strlen(text); |
1027 | if(textlen >= PATH_MAX) goto name_error; |
1028 | strcat(desc_file_name, text); |
1029 | } |
1030 | |
3aee1200 |
1031 | text = ".xml"; |
1032 | textlen+=strlen(text); |
1033 | if(textlen >= PATH_MAX) goto name_error; |
1034 | strcat(desc_file_name, text); |
29e7c5b3 |
1035 | |
3aee1200 |
1036 | err = ltt_facility_open(f, t, desc_file_name); |
1037 | if(err) goto facility_error; |
3aee1200 |
1038 | |
1039 | return 0; |
1040 | |
1041 | facility_error: |
1042 | name_error: |
1043 | return 1; |
1044 | } |
1045 | |
1046 | static void ltt_fac_ids_destroy(gpointer data) |
1047 | { |
1048 | GArray *fac_ids = (GArray *)data; |
963b5f2d |
1049 | |
3aee1200 |
1050 | g_array_free(fac_ids, TRUE); |
1051 | } |
3c165eaf |
1052 | #endif //0 |
3aee1200 |
1053 | |
1054 | /* Presumes the tracefile is already seeked at the beginning. It makes sense, |
1055 | * because it must be done just after the opening */ |
3c165eaf |
1056 | int ltt_process_facility_tracefile(LttTracefile *tf) |
3aee1200 |
1057 | { |
1058 | int err; |
29af7cfd |
1059 | //LttFacility *fac; |
1060 | //GArray *fac_ids; |
cb03932a |
1061 | guint i; |
29af7cfd |
1062 | //LttEventType *et; |
3aee1200 |
1063 | |
1064 | while(1) { |
1065 | err = ltt_tracefile_read_seek(tf); |
1066 | if(err == EPERM) goto seek_error; |
1067 | else if(err == ERANGE) break; /* End of tracefile */ |
1068 | |
1069 | err = ltt_tracefile_read_update_event(tf); |
1070 | if(err) goto update_error; |
1071 | |
1072 | /* We are on a facility load/or facility unload/ or heartbeat event */ |
1073 | /* The rules are : |
1074 | * * facility 0 is hardcoded : this is the core facility. It will be shown |
1075 | * in the facility array though, and is shown as "loaded builtin" in the |
1076 | * trace. |
1077 | * It contains event : |
1078 | * 0 : facility load |
1079 | * 1 : facility unload |
1080 | * 2 : state dump facility load |
d2083cab |
1081 | * 3 : heartbeat |
3aee1200 |
1082 | */ |
3c165eaf |
1083 | if(tf->event.event_id >= MARKER_CORE_IDS) { |
d2083cab |
1084 | /* Should only contain core facility */ |
3aee1200 |
1085 | g_warning("Error in processing facility file %s, " |
3c165eaf |
1086 | "should not contain event id %u.", g_quark_to_string(tf->name), |
1087 | tf->event.event_id); |
3aee1200 |
1088 | err = EPERM; |
3c165eaf |
1089 | goto event_id_error; |
d2083cab |
1090 | } else { |
3aee1200 |
1091 | |
2e13d6af |
1092 | char *pos; |
3c165eaf |
1093 | const char *marker_name, *format; |
1094 | uint16_t id; |
1095 | guint8 int_size, long_size, pointer_size, size_t_size, alignment; |
3aee1200 |
1096 | |
1097 | // FIXME align |
3c165eaf |
1098 | switch((enum marker_id)tf->event.event_id) { |
1099 | case MARKER_ID_SET_MARKER_ID: |
2e13d6af |
1100 | marker_name = pos = tf->event.data; |
3c165eaf |
1101 | g_debug("Doing MARKER_ID_SET_MARKER_ID of marker %s", marker_name); |
2e13d6af |
1102 | pos += strlen(marker_name) + 1; |
1103 | //remove genevent compatibility |
256a5b3a |
1104 | //pos += ltt_align((size_t)pos, tf->trace->arch_size, tf->alignment); |
1105 | pos += ltt_align((size_t)pos, sizeof(uint16_t), tf->alignment); |
3c165eaf |
1106 | id = ltt_get_uint16(LTT_GET_BO(tf), pos); |
c7146c5c |
1107 | g_debug("In MARKER_ID_SET_MARKER_ID of marker %s id %hu", |
1108 | marker_name, id); |
3c165eaf |
1109 | pos += sizeof(guint16); |
1110 | int_size = *(guint8*)pos; |
1111 | pos += sizeof(guint8); |
1112 | long_size = *(guint8*)pos; |
1113 | pos += sizeof(guint8); |
1114 | pointer_size = *(guint8*)pos; |
1115 | pos += sizeof(guint8); |
1116 | size_t_size = *(guint8*)pos; |
1117 | pos += sizeof(guint8); |
1118 | alignment = *(guint8*)pos; |
1119 | pos += sizeof(guint8); |
1120 | marker_id_event(tf->trace, g_quark_from_string(marker_name), |
1121 | id, int_size, long_size, |
1122 | pointer_size, size_t_size, alignment); |
3aee1200 |
1123 | break; |
3c165eaf |
1124 | case MARKER_ID_SET_MARKER_FORMAT: |
2e13d6af |
1125 | marker_name = pos = tf->event.data; |
3c165eaf |
1126 | g_debug("Doing MARKER_ID_SET_MARKER_FORMAT of marker %s", |
1127 | marker_name); |
2e13d6af |
1128 | pos += strlen(marker_name) + 1; |
1129 | //break genevent. |
256a5b3a |
1130 | //pos += ltt_align((size_t)pos, tf->trace->arch_size, tf->alignment); |
2e13d6af |
1131 | format = pos; |
3c165eaf |
1132 | pos += strlen(format) + 1; |
2e13d6af |
1133 | //break genevent |
256a5b3a |
1134 | //pos += ltt_align((size_t)pos, tf->trace->arch_size, tf->alignment); |
3c165eaf |
1135 | marker_format_event(tf->trace, g_quark_from_string(marker_name), |
1136 | format); |
1137 | /* get information from dictionnary TODO */ |
3aee1200 |
1138 | break; |
3c165eaf |
1139 | case MARKER_ID_HEARTBEAT_32: |
1140 | case MARKER_ID_HEARTBEAT_64: |
d1bb700c |
1141 | break; |
3aee1200 |
1142 | default: |
1143 | g_warning("Error in processing facility file %s, " |
3c165eaf |
1144 | "unknown event id %hhu.", |
3aee1200 |
1145 | g_quark_to_string(tf->name), |
1146 | tf->event.event_id); |
1147 | err = EPERM; |
1148 | goto event_id_error; |
1149 | } |
1150 | } |
963b5f2d |
1151 | } |
3aee1200 |
1152 | return 0; |
963b5f2d |
1153 | |
3aee1200 |
1154 | /* Error handling */ |
3aee1200 |
1155 | event_id_error: |
3aee1200 |
1156 | update_error: |
1157 | seek_error: |
d2083cab |
1158 | g_warning("An error occured in facility tracefile parsing"); |
3aee1200 |
1159 | return err; |
6cd62ccf |
1160 | } |
1161 | |
963b5f2d |
1162 | |
3aee1200 |
1163 | LttTrace *ltt_trace_open(const gchar *pathname) |
1164 | { |
1165 | gchar abs_path[PATH_MAX]; |
1166 | LttTrace * t; |
1167 | LttTracefile *tf; |
1168 | GArray *group; |
b56dcdf2 |
1169 | int i, ret; |
16fcbb80 |
1170 | struct ltt_block_start_header *header; |
62e4e7bf |
1171 | DIR *dir; |
1172 | struct dirent *entry; |
b56dcdf2 |
1173 | guint control_found = 0; |
1174 | guint eventdefs_found = 0; |
62e4e7bf |
1175 | struct stat stat_buf; |
b56dcdf2 |
1176 | gchar path[PATH_MAX]; |
3aee1200 |
1177 | |
1178 | t = g_new(LttTrace, 1); |
1179 | if(!t) goto alloc_error; |
1180 | |
1181 | get_absolute_pathname(pathname, abs_path); |
1182 | t->pathname = g_quark_from_string(abs_path); |
1183 | |
3aee1200 |
1184 | g_datalist_init(&t->tracefiles); |
b56dcdf2 |
1185 | |
1186 | /* Test to see if it looks like a trace */ |
62e4e7bf |
1187 | dir = opendir(abs_path); |
1188 | if(dir == NULL) { |
1189 | perror(abs_path); |
1190 | goto open_error; |
1191 | } |
1192 | while((entry = readdir(dir)) != NULL) { |
b56dcdf2 |
1193 | strcpy(path, abs_path); |
1194 | strcat(path, "/"); |
1195 | strcat(path, entry->d_name); |
62e4e7bf |
1196 | ret = stat(path, &stat_buf); |
1197 | if(ret == -1) { |
1198 | perror(path); |
1199 | continue; |
1200 | } |
1201 | if(S_ISDIR(stat_buf.st_mode)) { |
b56dcdf2 |
1202 | if(strcmp(entry->d_name, "control") == 0) { |
1203 | control_found = 1; |
1204 | } |
1205 | if(strcmp(entry->d_name, "eventdefs") == 0) { |
1206 | eventdefs_found = 1; |
1207 | } |
1208 | } |
1209 | } |
1210 | closedir(dir); |
1211 | |
1212 | if(!control_found || !eventdefs_found) goto find_error; |
1213 | |
1214 | /* Open all the tracefiles */ |
e45551ac |
1215 | if(open_tracefiles(t, abs_path, "")) { |
1216 | g_warning("Error opening tracefile %s", abs_path); |
b56dcdf2 |
1217 | goto find_error; |
e45551ac |
1218 | } |
3aee1200 |
1219 | |
3aee1200 |
1220 | /* Parse each trace control/facilitiesN files : get runtime fac. info */ |
1221 | group = g_datalist_id_get_data(&t->tracefiles, LTT_TRACEFILE_NAME_FACILITIES); |
1222 | if(group == NULL) { |
1223 | g_error("Trace %s has no facility tracefile", abs_path); |
3865ea09 |
1224 | g_assert(0); |
3aee1200 |
1225 | goto facilities_error; |
1226 | } |
1227 | |
16fcbb80 |
1228 | /* Get the trace information for the control/facility 0 tracefile */ |
1229 | g_assert(group->len > 0); |
1230 | tf = &g_array_index (group, LttTracefile, 0); |
1231 | header = (struct ltt_block_start_header*)tf->buffer.head; |
51551c6f |
1232 | g_assert(parse_trace_header(header->trace, |
1233 | tf, t) == 0); |
b56dcdf2 |
1234 | |
1235 | t->num_cpu = group->len; |
16fcbb80 |
1236 | |
d79909d1 |
1237 | ret = allocate_marker_data(t); |
b44ba972 |
1238 | if (ret) |
d79909d1 |
1239 | g_error("Error in allocating marker data"); |
1240 | |
3aee1200 |
1241 | for(i=0; i<group->len; i++) { |
1242 | tf = &g_array_index (group, LttTracefile, i); |
1243 | if(ltt_process_facility_tracefile(tf)) |
1244 | goto facilities_error; |
1245 | } |
dd3a6d39 |
1246 | |
3aee1200 |
1247 | return t; |
1248 | |
1249 | /* Error handling */ |
1250 | facilities_error: |
d79909d1 |
1251 | destroy_marker_data(t); |
b56dcdf2 |
1252 | find_error: |
3aee1200 |
1253 | g_datalist_clear(&t->tracefiles); |
b56dcdf2 |
1254 | open_error: |
3aee1200 |
1255 | g_free(t); |
1256 | alloc_error: |
1257 | return NULL; |
1258 | |
1259 | } |
6cd62ccf |
1260 | |
826f1ab2 |
1261 | GQuark ltt_trace_name(const LttTrace *t) |
6cd62ccf |
1262 | { |
3aee1200 |
1263 | return t->pathname; |
6cd62ccf |
1264 | } |
1265 | |
6cd62ccf |
1266 | |
3aee1200 |
1267 | /****************************************************************************** |
1268 | * When we copy a trace, we want all the opening actions to happen again : |
1269 | * the trace will be reopened and totally independant from the original. |
1270 | * That's why we call ltt_trace_open. |
1271 | *****************************************************************************/ |
1272 | LttTrace *ltt_trace_copy(LttTrace *self) |
963b5f2d |
1273 | { |
3aee1200 |
1274 | return ltt_trace_open(g_quark_to_string(self->pathname)); |
963b5f2d |
1275 | } |
1276 | |
3aee1200 |
1277 | void ltt_trace_close(LttTrace *t) |
6cd62ccf |
1278 | { |
3aee1200 |
1279 | g_datalist_clear(&t->tracefiles); |
1280 | g_free(t); |
6cd62ccf |
1281 | } |
1282 | |
3aee1200 |
1283 | |
6cd62ccf |
1284 | /***************************************************************************** |
3aee1200 |
1285 | *Get the system description of the trace |
6cd62ccf |
1286 | ****************************************************************************/ |
3c165eaf |
1287 | #if 0 |
3aee1200 |
1288 | LttFacility *ltt_trace_facility_by_id(LttTrace *t, guint8 id) |
6cd62ccf |
1289 | { |
3aee1200 |
1290 | g_assert(id < t->facilities_by_num->len); |
1291 | return &g_array_index(t->facilities_by_num, LttFacility, id); |
1292 | } |
1293 | |
1294 | /* ltt_trace_facility_get_by_name |
1295 | * |
1296 | * Returns the GArray of facility indexes. All the fac_ids that matches the |
1297 | * requested facility name. |
1298 | * |
1299 | * If name is not found, returns NULL. |
1300 | */ |
1301 | GArray *ltt_trace_facility_get_by_name(LttTrace *t, GQuark name) |
1302 | { |
1303 | return g_datalist_id_get_data(&t->facilities_by_name, name); |
6cd62ccf |
1304 | } |
3c165eaf |
1305 | #endif //0 |
6cd62ccf |
1306 | |
1307 | /***************************************************************************** |
963b5f2d |
1308 | * Functions to discover all the event types in the trace |
6cd62ccf |
1309 | ****************************************************************************/ |
1310 | |
3aee1200 |
1311 | #if 0 |
963b5f2d |
1312 | unsigned ltt_trace_eventtype_number(LttTrace *t) |
6cd62ccf |
1313 | { |
8d1e6362 |
1314 | unsigned int i; |
963b5f2d |
1315 | unsigned count = 0; |
dc1cad90 |
1316 | unsigned int num = t->facility_number; |
963b5f2d |
1317 | LttFacility * f; |
dc1cad90 |
1318 | |
1319 | for(i=0;i<num;i++){ |
963b5f2d |
1320 | f = (LttFacility*)g_ptr_array_index(t->facilities, i); |
1321 | count += f->event_number; |
1322 | } |
1323 | return count; |
6cd62ccf |
1324 | } |
3aee1200 |
1325 | #endif //0 |
6cd62ccf |
1326 | |
3aee1200 |
1327 | #if 0 |
1328 | //use an iteration on all the trace facilities, and inside iteration on all the |
1329 | //event types in each facilities instead. |
963b5f2d |
1330 | LttEventType *ltt_trace_eventtype_get(LttTrace *t, unsigned evId) |
6cd62ccf |
1331 | { |
6e8c19d4 |
1332 | LttEventType *event_type; |
1333 | |
963b5f2d |
1334 | LttFacility * f; |
1335 | f = ltt_trace_facility_by_id(t,evId); |
6e8c19d4 |
1336 | |
1337 | if(unlikely(!f)) event_type = NULL; |
1338 | else event_type = f->events[evId - f->base_id]; |
1339 | |
1340 | return event_type; |
6cd62ccf |
1341 | } |
3aee1200 |
1342 | #endif //0 |
6cd62ccf |
1343 | |
3aee1200 |
1344 | #if 0 |
6cd62ccf |
1345 | /***************************************************************************** |
3aee1200 |
1346 | * ltt_trace_find_tracefile |
1347 | * |
1348 | * Find a tracefile by name and index in the group. |
1349 | * |
1350 | * Returns a pointer to the tracefiles, else NULL. |
6cd62ccf |
1351 | ****************************************************************************/ |
6cd62ccf |
1352 | |
3aee1200 |
1353 | LttTracefile *ltt_trace_find_tracefile(LttTrace *t, const gchar *name) |
6cd62ccf |
1354 | { |
6cd62ccf |
1355 | } |
3aee1200 |
1356 | #endif //0 |
6cd62ccf |
1357 | |
1358 | /***************************************************************************** |
3aee1200 |
1359 | * Get the start time and end time of the trace |
6cd62ccf |
1360 | ****************************************************************************/ |
1361 | |
3c165eaf |
1362 | void ltt_tracefile_time_span_get(LttTracefile *tf, |
3aee1200 |
1363 | LttTime *start, LttTime *end) |
6cd62ccf |
1364 | { |
3aee1200 |
1365 | int err; |
6cd62ccf |
1366 | |
3aee1200 |
1367 | err = map_block(tf, 0); |
1368 | if(unlikely(err)) { |
1369 | g_error("Can not map block"); |
1370 | *start = ltt_time_infinite; |
1371 | } else |
1372 | *start = tf->buffer.begin.timestamp; |
1373 | |
1374 | err = map_block(tf, tf->num_blocks - 1); /* Last block */ |
1375 | if(unlikely(err)) { |
1376 | g_error("Can not map block"); |
1377 | *end = ltt_time_zero; |
1378 | } else |
1379 | *end = tf->buffer.end.timestamp; |
6cd62ccf |
1380 | } |
1381 | |
3aee1200 |
1382 | struct tracefile_time_span_get_args { |
1383 | LttTrace *t; |
1384 | LttTime *start; |
1385 | LttTime *end; |
1386 | }; |
963b5f2d |
1387 | |
3c165eaf |
1388 | void group_time_span_get(GQuark name, gpointer data, gpointer user_data) |
963b5f2d |
1389 | { |
3aee1200 |
1390 | struct tracefile_time_span_get_args *args = |
1391 | (struct tracefile_time_span_get_args*)user_data; |
1392 | |
1393 | GArray *group = (GArray *)data; |
1394 | int i; |
1395 | LttTracefile *tf; |
1396 | LttTime tmp_start; |
1397 | LttTime tmp_end; |
1398 | |
1399 | for(i=0; i<group->len; i++) { |
1400 | tf = &g_array_index (group, LttTracefile, i); |
1401 | if(tf->cpu_online) { |
1402 | ltt_tracefile_time_span_get(tf, &tmp_start, &tmp_end); |
1403 | if(ltt_time_compare(*args->start, tmp_start)>0) *args->start = tmp_start; |
1404 | if(ltt_time_compare(*args->end, tmp_end)<0) *args->end = tmp_end; |
1405 | } |
1406 | } |
6cd62ccf |
1407 | } |
1408 | |
487ad181 |
1409 | void ltt_trace_time_span_get(LttTrace *t, LttTime *start, LttTime *end) |
1410 | { |
3aee1200 |
1411 | LttTime min_start = ltt_time_infinite; |
1412 | LttTime max_end = ltt_time_zero; |
1413 | struct tracefile_time_span_get_args args = { t, &min_start, &max_end }; |
487ad181 |
1414 | |
3aee1200 |
1415 | g_datalist_foreach(&t->tracefiles, &group_time_span_get, &args); |
1416 | |
1417 | if(start != NULL) *start = min_start; |
1418 | if(end != NULL) *end = max_end; |
1419 | |
487ad181 |
1420 | } |
1421 | |
1422 | |
6cd62ccf |
1423 | /***************************************************************************** |
963b5f2d |
1424 | *Get the name of a tracefile |
6cd62ccf |
1425 | ****************************************************************************/ |
1426 | |
348c6ba8 |
1427 | GQuark ltt_tracefile_name(const LttTracefile *tf) |
6cd62ccf |
1428 | { |
963b5f2d |
1429 | return tf->name; |
6cd62ccf |
1430 | } |
1431 | |
348c6ba8 |
1432 | GQuark ltt_tracefile_long_name(const LttTracefile *tf) |
1433 | { |
1434 | return tf->long_name; |
1435 | } |
1436 | |
1437 | |
d3d34f49 |
1438 | |
ae3d0f50 |
1439 | guint ltt_tracefile_cpu(LttTracefile *tf) |
d3d34f49 |
1440 | { |
1441 | return tf->cpu_num; |
1442 | } |
1443 | |
ae3d0f50 |
1444 | guint ltt_tracefile_tid(LttTracefile *tf) |
1445 | { |
1446 | return tf->tid; |
1447 | } |
1448 | |
1449 | guint ltt_tracefile_pgid(LttTracefile *tf) |
1450 | { |
1451 | return tf->pgid; |
1452 | } |
1453 | |
1454 | guint64 ltt_tracefile_creation(LttTracefile *tf) |
1455 | { |
1456 | return tf->creation; |
1457 | } |
80da81ad |
1458 | /***************************************************************************** |
1459 | * Get the number of blocks in the tracefile |
1460 | ****************************************************************************/ |
1461 | |
3aee1200 |
1462 | guint ltt_tracefile_block_number(LttTracefile *tf) |
80da81ad |
1463 | { |
3aee1200 |
1464 | return tf->num_blocks; |
80da81ad |
1465 | } |
1466 | |
caf7a67a |
1467 | |
3aee1200 |
1468 | /* Seek to the first event in a tracefile that has a time equal or greater than |
1469 | * the time passed in parameter. |
1470 | * |
1471 | * If the time parameter is outside the tracefile time span, seek to the first |
27304273 |
1472 | * event or if after, return ERANGE. |
3aee1200 |
1473 | * |
1474 | * If the time parameter is before the first event, we have to seek specially to |
1475 | * there. |
1476 | * |
27304273 |
1477 | * If the time is after the end of the trace, return ERANGE. |
3aee1200 |
1478 | * |
1479 | * Do a binary search to find the right block, then a sequential search in the |
1480 | * block to find the event. |
1481 | * |
1482 | * In the special case where the time requested fits inside a block that has no |
1483 | * event corresponding to the requested time, the first event of the next block |
1484 | * will be seeked. |
1485 | * |
1486 | * IMPORTANT NOTE : // FIXME everywhere... |
1487 | * |
1488 | * You MUST NOT do a ltt_tracefile_read right after a ltt_tracefile_seek_time : |
1489 | * you will jump over an event if you do. |
1490 | * |
1491 | * Return value : 0 : no error, the tf->event can be used |
27304273 |
1492 | * ERANGE : time if after the last event of the trace |
3aee1200 |
1493 | * otherwise : this is an error. |
1494 | * |
1495 | * */ |
1496 | |
1497 | int ltt_tracefile_seek_time(LttTracefile *tf, LttTime time) |
1498 | { |
1499 | int ret = 0; |
1500 | int err; |
1501 | unsigned int block_num, high, low; |
1502 | |
1503 | /* seek at the beginning of trace */ |
1504 | err = map_block(tf, 0); /* First block */ |
1505 | if(unlikely(err)) { |
1506 | g_error("Can not map block"); |
1507 | goto fail; |
caf7a67a |
1508 | } |
1509 | |
3aee1200 |
1510 | /* If the time is lower or equal the beginning of the trace, |
1511 | * go to the first event. */ |
1512 | if(ltt_time_compare(time, tf->buffer.begin.timestamp) <= 0) { |
1513 | ret = ltt_tracefile_read(tf); |
27304273 |
1514 | if(ret == ERANGE) goto range; |
1515 | else if (ret) goto fail; |
3aee1200 |
1516 | goto found; /* There is either no event in the trace or the event points |
1517 | to the first event in the trace */ |
1518 | } |
caf7a67a |
1519 | |
3aee1200 |
1520 | err = map_block(tf, tf->num_blocks - 1); /* Last block */ |
1521 | if(unlikely(err)) { |
1522 | g_error("Can not map block"); |
1523 | goto fail; |
caf7a67a |
1524 | } |
6cd62ccf |
1525 | |
27304273 |
1526 | /* If the time is after the end of the trace, return ERANGE. */ |
1527 | if(ltt_time_compare(time, tf->buffer.end.timestamp) > 0) { |
1528 | goto range; |
3aee1200 |
1529 | } |
62e55dd6 |
1530 | |
3aee1200 |
1531 | /* Binary search the block */ |
1532 | high = tf->num_blocks - 1; |
1533 | low = 0; |
1534 | |
1535 | while(1) { |
1536 | block_num = ((high-low) / 2) + low; |
1537 | |
1538 | err = map_block(tf, block_num); |
1539 | if(unlikely(err)) { |
1540 | g_error("Can not map block"); |
1541 | goto fail; |
db55eaae |
1542 | } |
3aee1200 |
1543 | if(high == low) { |
1544 | /* We cannot divide anymore : this is what would happen if the time |
1545 | * requested was exactly between two consecutive buffers'end and start |
1546 | * timestamps. This is also what would happend if we didn't deal with out |
1547 | * of span cases prior in this function. */ |
1548 | /* The event is right in the buffer! |
1549 | * (or in the next buffer first event) */ |
1550 | while(1) { |
1551 | ret = ltt_tracefile_read(tf); |
27304273 |
1552 | if(ret == ERANGE) goto range; /* ERANGE or EPERM */ |
3aee1200 |
1553 | else if(ret) goto fail; |
1554 | |
d9e13a0f |
1555 | if(ltt_time_compare(time, tf->event.event_time) <= 0) |
e45551ac |
1556 | goto found; |
3aee1200 |
1557 | } |
1558 | |
27304273 |
1559 | } else if(ltt_time_compare(time, tf->buffer.begin.timestamp) < 0) { |
3aee1200 |
1560 | /* go to lower part */ |
b1369bef |
1561 | high = block_num - 1; |
3aee1200 |
1562 | } else if(ltt_time_compare(time, tf->buffer.end.timestamp) > 0) { |
1563 | /* go to higher part */ |
b1369bef |
1564 | low = block_num + 1; |
3aee1200 |
1565 | } else {/* The event is right in the buffer! |
1566 | (or in the next buffer first event) */ |
1567 | while(1) { |
27304273 |
1568 | ret = ltt_tracefile_read(tf); |
1569 | if(ret == ERANGE) goto range; /* ERANGE or EPERM */ |
3aee1200 |
1570 | else if(ret) goto fail; |
1571 | |
d9e13a0f |
1572 | if(ltt_time_compare(time, tf->event.event_time) <= 0) |
3aee1200 |
1573 | break; |
6cd62ccf |
1574 | } |
3aee1200 |
1575 | goto found; |
6cd62ccf |
1576 | } |
6cd62ccf |
1577 | } |
3aee1200 |
1578 | |
1579 | found: |
1580 | return 0; |
27304273 |
1581 | range: |
1582 | return ERANGE; |
3aee1200 |
1583 | |
1584 | /* Error handling */ |
1585 | fail: |
1586 | g_error("ltt_tracefile_seek_time failed on tracefile %s", |
1587 | g_quark_to_string(tf->name)); |
1588 | return EPERM; |
6cd62ccf |
1589 | } |
1590 | |
80da81ad |
1591 | |
3aee1200 |
1592 | int ltt_tracefile_seek_position(LttTracefile *tf, const LttEventPosition *ep) { |
80da81ad |
1593 | |
3aee1200 |
1594 | int err; |
1595 | |
1596 | if(ep->tracefile != tf) { |
1597 | goto fail; |
80da81ad |
1598 | } |
1599 | |
3aee1200 |
1600 | err = map_block(tf, ep->block); |
1601 | if(unlikely(err)) { |
1602 | g_error("Can not map block"); |
1603 | goto fail; |
1604 | } |
1605 | |
1606 | tf->event.offset = ep->offset; |
18206708 |
1607 | |
62e4e7bf |
1608 | /* Put back the event real tsc */ |
1609 | tf->event.tsc = ep->tsc; |
1610 | tf->buffer.tsc = ep->tsc; |
78f79181 |
1611 | |
3aee1200 |
1612 | err = ltt_tracefile_read_update_event(tf); |
1613 | if(err) goto fail; |
1614 | err = ltt_tracefile_read_op(tf); |
1615 | if(err) goto fail; |
80da81ad |
1616 | |
a0c1f622 |
1617 | return 0; |
3aee1200 |
1618 | |
1619 | fail: |
1620 | g_error("ltt_tracefile_seek_time failed on tracefile %s", |
1621 | g_quark_to_string(tf->name)); |
a0c1f622 |
1622 | return 1; |
3aee1200 |
1623 | } |
1624 | |
ae3d0f50 |
1625 | LttTime ltt_interpolate_time_from_tsc(LttTracefile *tf, guint64 tsc) |
3aee1200 |
1626 | { |
1627 | LttTime time; |
62e4e7bf |
1628 | |
1629 | if(tsc > tf->trace->start_tsc) { |
1630 | time = ltt_time_from_uint64( |
1631 | (double)(tsc - tf->trace->start_tsc) |
1632 | * (1000000000.0 / tf->trace->freq_scale) |
1633 | / (double)tf->trace->start_freq); |
1634 | time = ltt_time_add(tf->trace->start_time_from_tsc, time); |
1635 | } else { |
1636 | time = ltt_time_from_uint64( |
1637 | (double)(tf->trace->start_tsc - tsc) |
1638 | * (1000000000.0 / tf->trace->freq_scale) |
1639 | / (double)tf->trace->start_freq); |
1640 | time = ltt_time_sub(tf->trace->start_time_from_tsc, time); |
1641 | } |
3aee1200 |
1642 | return time; |
80da81ad |
1643 | } |
1644 | |
ae3d0f50 |
1645 | /* Calculate the real event time based on the buffer boundaries */ |
1646 | LttTime ltt_interpolate_time(LttTracefile *tf, LttEvent *event) |
1647 | { |
62e4e7bf |
1648 | return ltt_interpolate_time_from_tsc(tf, tf->buffer.tsc); |
ae3d0f50 |
1649 | } |
1650 | |
eed2ef37 |
1651 | |
1652 | /* Get the current event of the tracefile : valid until the next read */ |
1653 | LttEvent *ltt_tracefile_get_event(LttTracefile *tf) |
1654 | { |
1655 | return &tf->event; |
1656 | } |
1657 | |
1658 | |
1659 | |
6cd62ccf |
1660 | /***************************************************************************** |
1661 | *Function name |
3aee1200 |
1662 | * ltt_tracefile_read : Read the next event in the tracefile |
6cd62ccf |
1663 | *Input params |
1664 | * t : tracefile |
1665 | *Return value |
3aee1200 |
1666 | * |
1667 | * Returns 0 if an event can be used in tf->event. |
d822520b |
1668 | * Returns ERANGE on end of trace. The event in tf->event still can be used |
1669 | * (if the last block was not empty). |
3aee1200 |
1670 | * Returns EPERM on error. |
1671 | * |
1672 | * This function does make the tracefile event structure point to the event |
1673 | * currently pointed to by the tf->event. |
1674 | * |
1675 | * Note : you must call a ltt_tracefile_seek to the beginning of the trace to |
1676 | * reinitialize it after an error if you want results to be coherent. |
1677 | * It would be the case if a end of trace last buffer has no event : the end |
1678 | * of trace wouldn't be returned, but an error. |
1679 | * We make the assumption there is at least one event per buffer. |
6cd62ccf |
1680 | ****************************************************************************/ |
1681 | |
3aee1200 |
1682 | int ltt_tracefile_read(LttTracefile *tf) |
6cd62ccf |
1683 | { |
963b5f2d |
1684 | int err; |
6cd62ccf |
1685 | |
3aee1200 |
1686 | err = ltt_tracefile_read_seek(tf); |
1687 | if(err) return err; |
1688 | err = ltt_tracefile_read_update_event(tf); |
1689 | if(err) return err; |
1690 | err = ltt_tracefile_read_op(tf); |
1691 | if(err) return err; |
1692 | |
1693 | return 0; |
1694 | } |
1695 | |
1696 | int ltt_tracefile_read_seek(LttTracefile *tf) |
1697 | { |
1698 | int err; |
1699 | |
1700 | /* Get next buffer until we finally have an event, or end of trace */ |
1701 | while(1) { |
1702 | err = ltt_seek_next_event(tf); |
1703 | if(unlikely(err == ENOPROTOOPT)) { |
1704 | return EPERM; |
bdc36259 |
1705 | } |
bdc36259 |
1706 | |
3aee1200 |
1707 | /* Are we at the end of the buffer ? */ |
1708 | if(err == ERANGE) { |
1709 | if(unlikely(tf->buffer.index == tf->num_blocks-1)){ /* end of trace ? */ |
1710 | return ERANGE; |
1711 | } else { |
1712 | /* get next block */ |
1713 | err = map_block(tf, tf->buffer.index + 1); |
1714 | if(unlikely(err)) { |
1715 | g_error("Can not map block"); |
1716 | return EPERM; |
1717 | } |
1718 | } |
1719 | } else break; /* We found an event ! */ |
1720 | } |
2dee981d |
1721 | |
3aee1200 |
1722 | return 0; |
1723 | } |
18206708 |
1724 | |
1725 | |
3aee1200 |
1726 | /* do specific operation on events */ |
1727 | int ltt_tracefile_read_op(LttTracefile *tf) |
1728 | { |
3aee1200 |
1729 | LttEvent *event; |
1730 | |
1731 | event = &tf->event; |
18206708 |
1732 | |
3aee1200 |
1733 | /* do event specific operation */ |
40331ba8 |
1734 | |
3aee1200 |
1735 | /* do something if its an heartbeat event : increment the heartbeat count */ |
1736 | //if(event->facility_id == LTT_FACILITY_CORE) |
1737 | // if(event->event_id == LTT_EVENT_HEARTBEAT) |
1738 | // tf->cur_heart_beat_number++; |
1739 | |
1740 | return 0; |
6cd62ccf |
1741 | } |
1742 | |
6cd62ccf |
1743 | |
3aee1200 |
1744 | /* same as ltt_tracefile_read, but does not seek to the next event nor call |
1745 | * event specific operation. */ |
1746 | int ltt_tracefile_read_update_event(LttTracefile *tf) |
6cd62ccf |
1747 | { |
3aee1200 |
1748 | void * pos; |
1749 | LttEvent *event; |
1750 | |
1751 | event = &tf->event; |
eed2ef37 |
1752 | pos = tf->buffer.head + event->offset; |
3aee1200 |
1753 | |
1754 | /* Read event header */ |
1755 | |
62e4e7bf |
1756 | /* Align the head */ |
1757 | if(!tf->compact) |
256a5b3a |
1758 | pos += ltt_align((size_t)pos, tf->trace->arch_size, tf->alignment); |
62e4e7bf |
1759 | else { |
1760 | g_assert(tf->has_heartbeat); |
256a5b3a |
1761 | pos += ltt_align((size_t)pos, sizeof(uint32_t), tf->alignment); |
62e4e7bf |
1762 | } |
3aee1200 |
1763 | |
62e4e7bf |
1764 | if(tf->has_heartbeat) { |
1765 | event->timestamp = ltt_get_uint32(LTT_GET_BO(tf), |
1766 | pos); |
d1bb700c |
1767 | if(!tf->compact) { |
1768 | /* 32 bits -> 64 bits tsc */ |
1769 | /* note : still works for seek and non seek cases. */ |
1770 | if(event->timestamp < (0xFFFFFFFFULL&tf->buffer.tsc)) { |
1771 | tf->buffer.tsc = ((tf->buffer.tsc&0xFFFFFFFF00000000ULL) |
1772 | + 0x100000000ULL) |
1773 | | (guint64)event->timestamp; |
1774 | event->tsc = tf->buffer.tsc; |
1775 | } else { |
1776 | /* no overflow */ |
1777 | tf->buffer.tsc = (tf->buffer.tsc&0xFFFFFFFF00000000ULL) |
1778 | | (guint64)event->timestamp; |
1779 | event->tsc = tf->buffer.tsc; |
62e4e7bf |
1780 | event->compact_data = 0; |
d1bb700c |
1781 | } |
1782 | } else { |
1783 | /* Compact header */ |
1784 | /* We keep the LSB of the previous timestamp, to make sure |
1785 | * we never go back */ |
1786 | event->event_id = event->timestamp >> tf->tscbits; |
dd3a6d39 |
1787 | event->event_id = event->event_id & ((1 << tf->trace->compact_event_bits) - 1); |
1788 | event->compact_data = event->timestamp >> |
62e4e7bf |
1789 | (tf->trace->compact_event_bits + tf->tscbits); |
dd3a6d39 |
1790 | //printf("tsc bits %u, ev bits %u init data %u\n", |
62e4e7bf |
1791 | // tf->tscbits, tf->trace->compact_event_bits, event->compact_data); |
dd3a6d39 |
1792 | /* Put the compact data back in original endianness */ |
1793 | event->compact_data = ltt_get_uint32(LTT_GET_BO(tf), &event->compact_data); |
d1bb700c |
1794 | event->event_size = 0xFFFF; |
dd3a6d39 |
1795 | //printf("Found compact event %d\n", event->event_id); |
1796 | //printf("Compact data %d\n", event->compact_data); |
d1bb700c |
1797 | event->timestamp = event->timestamp << tf->tsc_lsb_truncate; |
1798 | event->timestamp = event->timestamp & tf->tsc_mask; |
dd3a6d39 |
1799 | //printf("timestamp 0x%lX\n", event->timestamp); |
1800 | //printf("mask 0x%llX\n", tf->tsc_mask); |
1801 | //printf("mask_next 0x%llX\n", tf->tsc_mask_next_bit); |
1802 | //printf("previous tsc 0x%llX\n", tf->buffer.tsc); |
1803 | //printf("previous tsc&mask 0x%llX\n", tf->tsc_mask&tf->buffer.tsc); |
1804 | //printf("previous tsc&(~mask) 0x%llX\n", tf->buffer.tsc&(~tf->tsc_mask)); |
d1bb700c |
1805 | if(event->timestamp < (tf->tsc_mask&tf->buffer.tsc)) { |
dd3a6d39 |
1806 | //printf("wrap\n"); |
d1bb700c |
1807 | tf->buffer.tsc = ((tf->buffer.tsc&(~tf->tsc_mask)) |
1808 | + tf->tsc_mask_next_bit) |
1809 | | (guint64)event->timestamp; |
1810 | event->tsc = tf->buffer.tsc; |
1811 | } else { |
dd3a6d39 |
1812 | //printf("no wrap\n"); |
d1bb700c |
1813 | /* no overflow */ |
1814 | tf->buffer.tsc = (tf->buffer.tsc&(~tf->tsc_mask)) |
1815 | | (guint64)event->timestamp; |
1816 | event->tsc = tf->buffer.tsc; |
1817 | } |
dd3a6d39 |
1818 | //printf("current tsc 0x%llX\n", tf->buffer.tsc); |
d1bb700c |
1819 | } |
62e4e7bf |
1820 | pos += sizeof(guint32); |
1821 | } else { |
1822 | event->tsc = ltt_get_uint64(LTT_GET_BO(tf), pos); |
1823 | tf->buffer.tsc = event->tsc; |
1824 | event->compact_data = 0; |
1825 | pos += sizeof(guint64); |
1826 | } |
1827 | event->event_time = ltt_interpolate_time(tf, event); |
3aee1200 |
1828 | |
d1bb700c |
1829 | if(!tf->compact) { |
3c165eaf |
1830 | event->event_id = *(guint16*)pos; |
1831 | pos += sizeof(guint16); |
d1bb700c |
1832 | |
1833 | event->event_size = ltt_get_uint16(LTT_GET_BO(tf), pos); |
1834 | pos += sizeof(guint16); |
1835 | } else { |
1836 | /* Compact event */ |
1837 | } |
62e4e7bf |
1838 | /* Align the head */ |
1839 | if(!tf->compact) |
256a5b3a |
1840 | pos += ltt_align((size_t)pos, tf->trace->arch_size, tf->alignment); |
f104d082 |
1841 | |
3aee1200 |
1842 | event->data = pos; |
1843 | |
77175651 |
1844 | /* get the data size and update the event fields with the current |
d1bb700c |
1845 | * information. Also update the time if a heartbeat_full event is found. */ |
eed2ef37 |
1846 | ltt_update_event_size(tf); |
77175651 |
1847 | |
3aee1200 |
1848 | return 0; |
6cd62ccf |
1849 | } |
1850 | |
507915ee |
1851 | |
6cd62ccf |
1852 | /**************************************************************************** |
1853 | *Function name |
3aee1200 |
1854 | * map_block : map a block from the file |
6cd62ccf |
1855 | *Input Params |
1856 | * lttdes : ltt trace file |
1857 | * whichBlock : the block which will be read |
1858 | *return value |
1859 | * 0 : success |
1860 | * EINVAL : lseek fail |
1861 | * EIO : can not read from the file |
1862 | ****************************************************************************/ |
1863 | |
3c165eaf |
1864 | gint map_block(LttTracefile * tf, guint block_num) |
6cd62ccf |
1865 | { |
b77d1b57 |
1866 | int page_size = getpagesize(); |
3aee1200 |
1867 | struct ltt_block_start_header *header; |
1868 | |
1869 | g_assert(block_num < tf->num_blocks); |
6cd62ccf |
1870 | |
f628823c |
1871 | if(tf->buffer.head != NULL) { |
1872 | if(munmap(tf->buffer.head, PAGE_ALIGN(tf->buf_size))) { |
1873 | g_warning("unmap size : %u\n", |
1874 | PAGE_ALIGN(tf->buf_size)); |
1875 | perror("munmap error"); |
1876 | g_assert(0); |
1877 | } |
1878 | } |
1879 | |
ac849774 |
1880 | |
3aee1200 |
1881 | /* Multiple of pages aligned head */ |
b77d1b57 |
1882 | tf->buffer.head = mmap(0, |
f628823c |
1883 | PAGE_ALIGN(tf->buf_size), |
b77d1b57 |
1884 | PROT_READ, MAP_PRIVATE, tf->fd, |
f628823c |
1885 | PAGE_ALIGN((off_t)tf->buf_size * (off_t)block_num)); |
3aee1200 |
1886 | |
3865ea09 |
1887 | if(tf->buffer.head == MAP_FAILED) { |
3aee1200 |
1888 | perror("Error in allocating memory for buffer of tracefile"); |
3865ea09 |
1889 | g_assert(0); |
3aee1200 |
1890 | goto map_error; |
6cd62ccf |
1891 | } |
3865ea09 |
1892 | g_assert( ( (guint)tf->buffer.head&(8-1) ) == 0); // make sure it's aligned. |
3aee1200 |
1893 | |
6cd62ccf |
1894 | |
3aee1200 |
1895 | tf->buffer.index = block_num; |
1896 | |
1897 | header = (struct ltt_block_start_header*)tf->buffer.head; |
1898 | |
791dffa6 |
1899 | #if 0 |
986e2a7c |
1900 | tf->buffer.begin.timestamp = ltt_time_add( |
1901 | ltt_time_from_uint64( |
1902 | ltt_get_uint64(LTT_GET_BO(tf), |
1903 | &header->begin.timestamp) |
1904 | - tf->trace->start_monotonic), |
1905 | tf->trace->start_time); |
791dffa6 |
1906 | #endif //0 |
348c6ba8 |
1907 | //g_debug("block %u begin : %lu.%lu", block_num, |
1908 | // tf->buffer.begin.timestamp.tv_sec, tf->buffer.begin.timestamp.tv_nsec); |
3aee1200 |
1909 | tf->buffer.begin.cycle_count = ltt_get_uint64(LTT_GET_BO(tf), |
1910 | &header->begin.cycle_count); |
986e2a7c |
1911 | tf->buffer.begin.freq = ltt_get_uint64(LTT_GET_BO(tf), |
1912 | &header->begin.freq); |
62e4e7bf |
1913 | if(tf->buffer.begin.freq == 0) |
1914 | tf->buffer.begin.freq = tf->trace->start_freq; |
ae3d0f50 |
1915 | |
1916 | tf->buffer.begin.timestamp = ltt_interpolate_time_from_tsc(tf, |
62e4e7bf |
1917 | tf->buffer.begin.cycle_count); |
ae3d0f50 |
1918 | #if 0 |
62e4e7bf |
1919 | ltt_time_add( |
791dffa6 |
1920 | ltt_time_from_uint64( |
88612d17 |
1921 | (double)(tf->buffer.begin.cycle_count |
1922 | - tf->trace->start_tsc) * 1000000.0 |
791dffa6 |
1923 | / (double)tf->trace->start_freq), |
62e4e7bf |
1924 | tf->trace->start_time_from_tsc); |
ae3d0f50 |
1925 | #endif //0 |
791dffa6 |
1926 | #if 0 |
1927 | |
986e2a7c |
1928 | tf->buffer.end.timestamp = ltt_time_add( |
1929 | ltt_time_from_uint64( |
1930 | ltt_get_uint64(LTT_GET_BO(tf), |
1931 | &header->end.timestamp) |
1932 | - tf->trace->start_monotonic), |
1933 | tf->trace->start_time); |
791dffa6 |
1934 | #endif //0 |
348c6ba8 |
1935 | //g_debug("block %u end : %lu.%lu", block_num, |
1936 | // tf->buffer.end.timestamp.tv_sec, tf->buffer.end.timestamp.tv_nsec); |
3aee1200 |
1937 | tf->buffer.end.cycle_count = ltt_get_uint64(LTT_GET_BO(tf), |
1938 | &header->end.cycle_count); |
986e2a7c |
1939 | tf->buffer.end.freq = ltt_get_uint64(LTT_GET_BO(tf), |
1940 | &header->end.freq); |
62e4e7bf |
1941 | if(tf->buffer.end.freq == 0) |
1942 | tf->buffer.end.freq = tf->trace->start_freq; |
1943 | |
3aee1200 |
1944 | tf->buffer.lost_size = ltt_get_uint32(LTT_GET_BO(tf), |
986e2a7c |
1945 | &header->lost_size); |
ae3d0f50 |
1946 | tf->buffer.end.timestamp = ltt_interpolate_time_from_tsc(tf, |
62e4e7bf |
1947 | tf->buffer.end.cycle_count); |
ae3d0f50 |
1948 | #if 0 |
62e4e7bf |
1949 | ltt_time_add( |
791dffa6 |
1950 | ltt_time_from_uint64( |
88612d17 |
1951 | (double)(tf->buffer.end.cycle_count |
1952 | - tf->trace->start_tsc) * 1000000.0 |
791dffa6 |
1953 | / (double)tf->trace->start_freq), |
88612d17 |
1954 | tf->trace->start_time_from_tsc); |
ae3d0f50 |
1955 | #endif //0 |
3aee1200 |
1956 | tf->buffer.tsc = tf->buffer.begin.cycle_count; |
1957 | tf->event.tsc = tf->buffer.tsc; |
986e2a7c |
1958 | tf->buffer.freq = tf->buffer.begin.freq; |
3aee1200 |
1959 | |
1960 | /* FIXME |
1961 | * eventually support variable buffer size : will need a partial pre-read of |
1962 | * the headers to create an index when we open the trace... eventually. */ |
f628823c |
1963 | g_assert(tf->buf_size == ltt_get_uint32(LTT_GET_BO(tf), |
3aee1200 |
1964 | &header->buf_size)); |
507915ee |
1965 | |
3aee1200 |
1966 | /* Now that the buffer is mapped, calculate the time interpolation for the |
1967 | * block. */ |
1968 | |
791dffa6 |
1969 | // tf->buffer.nsecs_per_cycle = calc_nsecs_per_cycle(tf); |
1970 | //tf->buffer.cyc2ns_scale = calc_nsecs_per_cycle(tf); |
3aee1200 |
1971 | |
1972 | /* Make the current event point to the beginning of the buffer : |
1973 | * it means that the event read must get the first event. */ |
1974 | tf->event.tracefile = tf; |
1975 | tf->event.block = block_num; |
eed2ef37 |
1976 | tf->event.offset = 0; |
3aee1200 |
1977 | |
1978 | return 0; |
6cd62ccf |
1979 | |
3aee1200 |
1980 | map_error: |
1981 | return -errno; |
40331ba8 |
1982 | |
6cd62ccf |
1983 | } |
1984 | |
77175651 |
1985 | /* It will update the fields offsets too */ |
1986 | void ltt_update_event_size(LttTracefile *tf) |
6cd62ccf |
1987 | { |
2312de30 |
1988 | off_t size = 0; |
d1bb700c |
1989 | char *tscdata; |
d2007fbd |
1990 | struct marker_info *info; |
44f317b7 |
1991 | |
d2007fbd |
1992 | switch((enum marker_id)tf->event.event_id) { |
1993 | case MARKER_ID_SET_MARKER_ID: |
44f317b7 |
1994 | size = strlen((char*)tf->event.data) + 1; |
d2007fbd |
1995 | //g_debug("marker %s id set", (char*)tf->event.data); |
256a5b3a |
1996 | size += ltt_align(size, sizeof(guint16), tf->alignment); |
d2007fbd |
1997 | size += sizeof(guint16); |
3c165eaf |
1998 | size += sizeof(guint8); |
1999 | size += sizeof(guint8); |
2000 | size += sizeof(guint8); |
2001 | size += sizeof(guint8); |
2002 | size += sizeof(guint8); |
44f317b7 |
2003 | break; |
d2007fbd |
2004 | case MARKER_ID_SET_MARKER_FORMAT: |
2005 | //g_debug("marker %s format set", (char*)tf->event.data); |
44f317b7 |
2006 | size = strlen((char*)tf->event.data) + 1; |
2e13d6af |
2007 | size += strlen((char*)tf->event.data + size) + 1; |
44f317b7 |
2008 | break; |
d2007fbd |
2009 | case MARKER_ID_HEARTBEAT_32: |
2010 | //g_debug("Update Event heartbeat 32 bits"); |
44f317b7 |
2011 | break; |
d2007fbd |
2012 | case MARKER_ID_HEARTBEAT_64: |
2013 | //g_debug("Update Event heartbeat 64 bits"); |
d1bb700c |
2014 | tscdata = (char*)(tf->event.data); |
2015 | tf->event.tsc = ltt_get_uint64(LTT_GET_BO(tf), tscdata); |
2016 | tf->buffer.tsc = tf->event.tsc; |
2017 | tf->event.event_time = ltt_interpolate_time(tf, &tf->event); |
256a5b3a |
2018 | size = ltt_align(size, sizeof(guint64), tf->alignment); |
d2007fbd |
2019 | size += sizeof(guint64); |
d1bb700c |
2020 | break; |
256a5b3a |
2021 | } |
2022 | |
2023 | info = marker_get_info_from_id(tf->trace, tf->event.event_id); |
2024 | if (tf->event.event_id >= MARKER_CORE_IDS) |
2025 | g_assert(info != NULL); |
2026 | |
2027 | /* Do not update field offsets of core markers when initially reading the |
2028 | * facility tracefile when the infos about these markers do not exist yet. |
2029 | */ |
2030 | if (likely(info && info->fields)) { |
2031 | if (info->size != -1) |
2032 | size = info->size; |
2033 | else |
2034 | size = marker_update_fields_offsets(marker_get_info_from_id(tf->trace, |
2035 | tf->event.event_id), tf->event.data); |
44f317b7 |
2036 | } |
c4afd5d8 |
2037 | |
d2007fbd |
2038 | tf->event.data_size = size; |
2039 | |
2040 | /* Check consistency between kernel and LTTV structure sizes */ |
2041 | if(tf->event.event_size == 0xFFFF) { |
2042 | /* Event size too big to fit in the event size field */ |
2043 | tf->event.event_size = tf->event.data_size; |
2044 | } |
2045 | if (tf->event.data_size != tf->event.event_size) { |
3c165eaf |
2046 | struct marker_info *info = marker_get_info_from_id(tf->trace, |
2047 | tf->event.event_id); |
2048 | g_error("Kernel/LTTV event size differs for event %s: kernel %u, LTTV %u", |
2049 | g_quark_to_string(info->name), |
2050 | tf->event.event_size, tf->event.data_size); |
d2007fbd |
2051 | exit(-1); |
2052 | } |
2053 | |
2054 | #if 0 |
44f317b7 |
2055 | LttEventType *event_type = |
2056 | ltt_facility_eventtype_get(f, tf->event.event_id); |
c4afd5d8 |
2057 | |
44f317b7 |
2058 | if(!event_type) { |
2059 | g_warning("Unknown event id %hhu in facility %s in tracefile %s", |
2060 | tf->event.event_id, |
2061 | g_quark_to_string(f->name), |
2062 | g_quark_to_string(tf->name)); |
2063 | goto event_type_error; |
3aee1200 |
2064 | } |
3aee1200 |
2065 | |
44f317b7 |
2066 | /* Compute the dynamic offsets */ |
2067 | compute_offsets(tf, f, event_type, &size, tf->event.data); |
2068 | |
2069 | //g_debug("Event root field : f.e %hhu.%hhu size %zd", |
2070 | // tf->event.facility_id, |
2071 | // tf->event.event_id, size); |
7cbcdb89 |
2072 | |
2073 | no_offset: |
77175651 |
2074 | tf->event.data_size = size; |
eed2ef37 |
2075 | |
b77d1b57 |
2076 | /* Check consistency between kernel and LTTV structure sizes */ |
62e4e7bf |
2077 | if(tf->event.event_size == 0xFFFF) { |
2078 | /* Event size too big to fit in the event size field */ |
2079 | tf->event.event_size = tf->event.data_size; |
2080 | } |
f63ebe51 |
2081 | if (tf->event.data_size != tf->event.event_size) { |
2082 | g_error("Kernel/LTTV event size differs for event %s.%s: kernel %u, LTTV %u", |
62e4e7bf |
2083 | g_quark_to_string(f->name), g_quark_to_string(event_type->name), |
2084 | tf->event.event_size, tf->event.data_size); |
f63ebe51 |
2085 | exit(-1); |
2086 | } |
2087 | //g_assert(tf->event.data_size == tf->event.event_size); |
9eb6aa7a |
2088 | |
eed2ef37 |
2089 | return; |
2090 | |
c4afd5d8 |
2091 | event_type_error: |
3aee1200 |
2092 | event_id_error: |
62e4e7bf |
2093 | if(tf->event.event_size == 0xFFFF) { |
2094 | g_error("Cannot jump over an unknown event bigger than 0xFFFE bytes"); |
2095 | } |
2096 | /* The facility is unknown : use the kernel information about this event |
2097 | * to jump over it. */ |
9d7e0c25 |
2098 | tf->event.data_size = tf->event.event_size; |
d2007fbd |
2099 | #endif //0 |
6cd62ccf |
2100 | } |
2101 | |
6cd62ccf |
2102 | |
3aee1200 |
2103 | /* Take the tf current event offset and use the event facility id and event id |
2104 | * to figure out where is the next event offset. |
2105 | * |
2106 | * This is an internal function not aiming at being used elsewhere : it will |
2107 | * not jump over the current block limits. Please consider using |
2108 | * ltt_tracefile_read to do this. |
2109 | * |
2110 | * Returns 0 on success |
2111 | * ERANGE if we are at the end of the buffer. |
2112 | * ENOPROTOOPT if an error occured when getting the current event size. |
2113 | */ |
3c165eaf |
2114 | int ltt_seek_next_event(LttTracefile *tf) |
6cd62ccf |
2115 | { |
3aee1200 |
2116 | int ret = 0; |
2117 | void *pos; |
3aee1200 |
2118 | |
2119 | /* seek over the buffer header if we are at the buffer start */ |
eed2ef37 |
2120 | if(tf->event.offset == 0) { |
51551c6f |
2121 | tf->event.offset += tf->buffer_header_size; |
b77d1b57 |
2122 | |
f628823c |
2123 | if(tf->event.offset == tf->buf_size - tf->buffer.lost_size) { |
b77d1b57 |
2124 | ret = ERANGE; |
2125 | } |
3aee1200 |
2126 | goto found; |
2127 | } |
6cd62ccf |
2128 | |
6cd62ccf |
2129 | |
3aee1200 |
2130 | pos = tf->event.data; |
2131 | |
77175651 |
2132 | if(tf->event.data_size < 0) goto error; |
3aee1200 |
2133 | |
77175651 |
2134 | pos += (size_t)tf->event.data_size; |
3aee1200 |
2135 | |
eed2ef37 |
2136 | tf->event.offset = pos - tf->buffer.head; |
cb03932a |
2137 | |
f628823c |
2138 | if(tf->event.offset == tf->buf_size - tf->buffer.lost_size) { |
cb03932a |
2139 | ret = ERANGE; |
2140 | goto found; |
2141 | } |
36d36c9f |
2142 | g_assert(tf->event.offset < tf->buf_size - tf->buffer.lost_size); |
3aee1200 |
2143 | |
2144 | found: |
2145 | return ret; |
2146 | |
2147 | error: |
2148 | g_error("Error in ltt_seek_next_event for tracefile %s", |
2149 | g_quark_to_string(tf->name)); |
2150 | return ENOPROTOOPT; |
6cd62ccf |
2151 | } |
2152 | |
791dffa6 |
2153 | #if 0 |
6cd62ccf |
2154 | /***************************************************************************** |
2155 | *Function name |
3aee1200 |
2156 | * calc_nsecs_per_cycle : calculate nsecs per cycle for current block |
986e2a7c |
2157 | * |
2158 | * 1.0 / (freq(khz) *1000) * 1000000000 |
6cd62ccf |
2159 | *Input Params |
2160 | * t : tracefile |
2161 | ****************************************************************************/ |
986e2a7c |
2162 | /* from timer_tsc.c */ |
2163 | #define CYC2NS_SCALE_FACTOR 10 |
791dffa6 |
2164 | static guint32 calc_nsecs_per_cycle(LttTracefile * tf) |
6cd62ccf |
2165 | { |
986e2a7c |
2166 | //return 1e6 / (double)tf->buffer.freq; |
791dffa6 |
2167 | guint32 cpu_mhz = tf->buffer.freq / 1000; |
2168 | guint32 cyc2ns_scale = (1000 << CYC2NS_SCALE_FACTOR)/cpu_mhz; |
6cd62ccf |
2169 | |
791dffa6 |
2170 | return cyc2ns_scale; |
986e2a7c |
2171 | // return 1e6 / (double)tf->buffer.freq; |
3aee1200 |
2172 | } |
791dffa6 |
2173 | |
2174 | static guint64 cycles_2_ns(LttTracefile *tf, guint64 cycles) |
2175 | { |
2176 | return (cycles * tf->buffer.cyc2ns_scale) >> CYC2NS_SCALE_FACTOR; |
2177 | } |
2178 | #endif //0 |
2179 | |
3aee1200 |
2180 | #if 0 |
2181 | void setFieldsOffset(LttTracefile *tf, LttEventType *evT,void *evD) |
2182 | { |
2183 | LttField * rootFld = evT->root_field; |
2184 | // rootFld->base_address = evD; |
2dee981d |
2185 | |
3aee1200 |
2186 | if(likely(rootFld)) |
2187 | rootFld->field_size = getFieldtypeSize(tf, evT->facility, |
2188 | evT, 0,0,rootFld, evD); |
6cd62ccf |
2189 | } |
3aee1200 |
2190 | #endif //0 |
f104d082 |
2191 | #if 0 |
3aee1200 |
2192 | /***************************************************************************** |
6cd62ccf |
2193 | *Function name |
3aee1200 |
2194 | * set_fields_offsets : set the precomputable offset of the fields |
6cd62ccf |
2195 | *Input params |
3aee1200 |
2196 | * tracefile : opened trace file |
2197 | * event_type : the event type |
6cd62ccf |
2198 | ****************************************************************************/ |
2199 | |
3aee1200 |
2200 | void set_fields_offsets(LttTracefile *tf, LttEventType *event_type) |
6cd62ccf |
2201 | { |
3aee1200 |
2202 | LttField *field = event_type->root_field; |
2203 | enum field_status fixed_root = FIELD_FIXED, fixed_parent = FIELD_FIXED; |
2204 | |
2205 | if(likely(field)) |
2206 | preset_field_type_size(tf, event_type, 0, 0, |
2207 | &fixed_root, &fixed_parent, |
2208 | field); |
2209 | |
2210 | } |
f104d082 |
2211 | #endif //0 |
2212 | |
2213 | |
2214 | /***************************************************************************** |
2215 | *Function name |
2216 | * get_alignment : Get the alignment needed for a field. |
2217 | *Input params |
f104d082 |
2218 | * field : field |
2219 | * |
2220 | * returns : The size on which it must be aligned. |
2221 | * |
2222 | ****************************************************************************/ |
3c165eaf |
2223 | #if 0 |
743e50fd |
2224 | off_t get_alignment(LttField *field) |
f104d082 |
2225 | { |
2312de30 |
2226 | LttType *type = &field->field_type; |
f104d082 |
2227 | |
2228 | switch(type->type_class) { |
2229 | case LTT_INT_FIXED: |
2230 | case LTT_UINT_FIXED: |
2231 | case LTT_POINTER: |
2232 | case LTT_CHAR: |
2233 | case LTT_UCHAR: |
2234 | case LTT_SHORT: |
2235 | case LTT_USHORT: |
2236 | case LTT_INT: |
2237 | case LTT_UINT: |
2238 | case LTT_LONG: |
2239 | case LTT_ULONG: |
2240 | case LTT_SIZE_T: |
2241 | case LTT_SSIZE_T: |
2242 | case LTT_OFF_T: |
2243 | case LTT_FLOAT: |
2244 | case LTT_ENUM: |
2245 | /* Align offset on type size */ |
83e160f2 |
2246 | g_assert(field->field_size != 0); |
f104d082 |
2247 | return field->field_size; |
2248 | break; |
2249 | case LTT_STRING: |
83e160f2 |
2250 | return 1; |
f104d082 |
2251 | break; |
2252 | case LTT_ARRAY: |
2253 | g_assert(type->fields->len == 1); |
2254 | { |
2255 | LttField *child = &g_array_index(type->fields, LttField, 0); |
743e50fd |
2256 | return get_alignment(child); |
f104d082 |
2257 | } |
2258 | break; |
2259 | case LTT_SEQUENCE: |
2260 | g_assert(type->fields->len == 2); |
2261 | { |
83e160f2 |
2262 | off_t localign = 1; |
f104d082 |
2263 | LttField *child = &g_array_index(type->fields, LttField, 0); |
2264 | |
743e50fd |
2265 | localign = max(localign, get_alignment(child)); |
f104d082 |
2266 | |
2267 | child = &g_array_index(type->fields, LttField, 1); |
743e50fd |
2268 | localign = max(localign, get_alignment(child)); |
f104d082 |
2269 | |
2270 | return localign; |
2271 | } |
2272 | break; |
2273 | case LTT_STRUCT: |
2274 | case LTT_UNION: |
2275 | { |
2276 | guint i; |
83e160f2 |
2277 | off_t localign = 1; |
f104d082 |
2278 | |
2279 | for(i=0; i<type->fields->len; i++) { |
2280 | LttField *child = &g_array_index(type->fields, LttField, i); |
743e50fd |
2281 | localign = max(localign, get_alignment(child)); |
f104d082 |
2282 | } |
2283 | return localign; |
2284 | } |
2285 | break; |
2286 | case LTT_NONE: |
2287 | default: |
2288 | g_error("get_alignment : unknown type"); |
83e160f2 |
2289 | return -1; |
f104d082 |
2290 | } |
f104d082 |
2291 | } |
2292 | |
3c165eaf |
2293 | #endif //0 |
2294 | |
f104d082 |
2295 | /***************************************************************************** |
2296 | *Function name |
2297 | * field_compute_static_size : Determine the size of fields known by their |
2298 | * sole definition. Unions, arrays and struct sizes might be known, but |
2299 | * the parser does not give that information. |
2300 | *Input params |
2301 | * tf : tracefile |
2302 | * field : field |
2303 | * |
2304 | ****************************************************************************/ |
3c165eaf |
2305 | #if 0 |
743e50fd |
2306 | void field_compute_static_size(LttFacility *fac, LttField *field) |
f104d082 |
2307 | { |
2312de30 |
2308 | LttType *type = &field->field_type; |
f104d082 |
2309 | |
2310 | switch(type->type_class) { |
2311 | case LTT_INT_FIXED: |
2312 | case LTT_UINT_FIXED: |
2313 | case LTT_POINTER: |
2314 | case LTT_CHAR: |
2315 | case LTT_UCHAR: |
2316 | case LTT_SHORT: |
2317 | case LTT_USHORT: |
2318 | case LTT_INT: |
2319 | case LTT_UINT: |
2320 | case LTT_LONG: |
2321 | case LTT_ULONG: |
2322 | case LTT_SIZE_T: |
2323 | case LTT_SSIZE_T: |
2324 | case LTT_OFF_T: |
2325 | case LTT_FLOAT: |
2326 | case LTT_ENUM: |
2327 | case LTT_STRING: |
2328 | /* nothing to do */ |
2329 | break; |
2330 | case LTT_ARRAY: |
2331 | /* note this : array type size is the number of elements in the array, |
2332 | * while array field size of the length of the array in bytes */ |
2333 | g_assert(type->fields->len == 1); |
2334 | { |
2335 | LttField *child = &g_array_index(type->fields, LttField, 0); |
743e50fd |
2336 | field_compute_static_size(fac, child); |
f104d082 |
2337 | |
2338 | if(child->field_size != 0) { |
2339 | field->field_size = type->size * child->field_size; |
2340 | field->dynamic_offsets = g_array_sized_new(FALSE, TRUE, |
2341 | sizeof(off_t), type->size); |
2342 | } else { |
2343 | field->field_size = 0; |
2344 | } |
2345 | } |
2346 | break; |
2347 | case LTT_SEQUENCE: |
2348 | g_assert(type->fields->len == 2); |
2349 | { |
2312de30 |
2350 | off_t local_offset = 0; |
f104d082 |
2351 | LttField *child = &g_array_index(type->fields, LttField, 1); |
743e50fd |
2352 | field_compute_static_size(fac, child); |
f104d082 |
2353 | field->field_size = 0; |
2354 | type->size = 0; |
2355 | if(child->field_size != 0) { |
2356 | field->dynamic_offsets = g_array_sized_new(FALSE, TRUE, |
2357 | sizeof(off_t), SEQUENCE_AVG_ELEMENTS); |
2358 | } |
2359 | } |
2360 | break; |
2361 | case LTT_STRUCT: |
2362 | case LTT_UNION: |
2363 | { |
2364 | guint i; |
2365 | for(i=0;i<type->fields->len;i++) { |
2366 | LttField *child = &g_array_index(type->fields, LttField, i); |
743e50fd |
2367 | field_compute_static_size(fac, child); |
f104d082 |
2368 | if(child->field_size != 0) { |
743e50fd |
2369 | type->size += ltt_align(type->size, get_alignment(child), |
2370 | fac->alignment); |
f104d082 |
2371 | type->size += child->field_size; |
2372 | } else { |
2373 | /* As soon as we find a child with variable size, we have |
2374 | * a variable size */ |
2375 | type->size = 0; |
2376 | break; |
2377 | } |
2378 | } |
2379 | field->field_size = type->size; |
2380 | } |
2381 | break; |
2382 | default: |
2383 | g_error("field_static_size : unknown type"); |
2312de30 |
2384 | } |
f104d082 |
2385 | |
2386 | } |
3c165eaf |
2387 | #endif //0 |
f104d082 |
2388 | |
2389 | |
2390 | /***************************************************************************** |
2391 | *Function name |
2392 | * precompute_fields_offsets : set the precomputable offset of the fields |
2393 | *Input params |
743e50fd |
2394 | * fac : facility |
f104d082 |
2395 | * field : the field |
2396 | * offset : pointer to the current offset, must be incremented |
2397 | * |
2398 | * return : 1 : found a variable length field, stop the processing. |
2399 | * 0 otherwise. |
2400 | ****************************************************************************/ |
2401 | |
3c165eaf |
2402 | #if 0 |
dd3a6d39 |
2403 | gint precompute_fields_offsets(LttFacility *fac, LttField *field, off_t *offset, gint is_compact) |
f104d082 |
2404 | { |
2312de30 |
2405 | LttType *type = &field->field_type; |
dd3a6d39 |
2406 | |
2407 | if(unlikely(is_compact)) { |
2408 | g_assert(field->field_size != 0); |
2409 | /* FIXME THIS IS A HUUUUUGE hack : |
2410 | * offset is between the compact_data field in struct LttEvent |
2411 | * and the address of the field root in the memory map. |
2412 | * ark. Both will stay at the same addresses while the event |
2413 | * is readable, so it's ok. |
2414 | */ |
2415 | field->offset_root = 0; |
2416 | field->fixed_root = FIELD_FIXED; |
2417 | return 0; |
2418 | } |
f104d082 |
2419 | |
2420 | switch(type->type_class) { |
2421 | case LTT_INT_FIXED: |
2422 | case LTT_UINT_FIXED: |
2423 | case LTT_POINTER: |
2424 | case LTT_CHAR: |
2425 | case LTT_UCHAR: |
2426 | case LTT_SHORT: |
2427 | case LTT_USHORT: |
2428 | case LTT_INT: |
2429 | case LTT_UINT: |
2430 | case LTT_LONG: |
2431 | case LTT_ULONG: |
2432 | case LTT_SIZE_T: |
2433 | case LTT_SSIZE_T: |
2434 | case LTT_OFF_T: |
2435 | case LTT_FLOAT: |
2436 | case LTT_ENUM: |
743e50fd |
2437 | g_assert(field->field_size != 0); |
f104d082 |
2438 | /* Align offset on type size */ |
743e50fd |
2439 | *offset += ltt_align(*offset, get_alignment(field), |
2440 | fac->alignment); |
f104d082 |
2441 | /* remember offset */ |
2442 | field->offset_root = *offset; |
2443 | field->fixed_root = FIELD_FIXED; |
2444 | /* Increment offset */ |
2445 | *offset += field->field_size; |
2446 | return 0; |
2447 | break; |
2448 | case LTT_STRING: |
2449 | field->offset_root = *offset; |
2450 | field->fixed_root = FIELD_FIXED; |
2451 | return 1; |
2452 | break; |
2453 | case LTT_ARRAY: |
2454 | g_assert(type->fields->len == 1); |
2455 | { |
2456 | LttField *child = &g_array_index(type->fields, LttField, 0); |
2457 | |
743e50fd |
2458 | *offset += ltt_align(*offset, get_alignment(field), |
2459 | fac->alignment); |
f104d082 |
2460 | |
2461 | /* remember offset */ |
2462 | field->offset_root = *offset; |
2463 | field->array_offset = *offset; |
2464 | field->fixed_root = FIELD_FIXED; |
2465 | |
2466 | /* Let the child be variable */ |
2467 | //precompute_fields_offsets(tf, child, offset); |
2468 | |
2469 | if(field->field_size != 0) { |
2470 | /* Increment offset */ |
2471 | /* field_size is the array size in bytes */ |
2472 | *offset += field->field_size; |
2473 | return 0; |
2474 | } else { |
2475 | return 1; |
2476 | } |
2477 | } |
2478 | break; |
2479 | case LTT_SEQUENCE: |
2480 | g_assert(type->fields->len == 2); |
2481 | { |
2482 | LttField *child; |
2483 | guint ret; |
2484 | |
743e50fd |
2485 | *offset += ltt_align(*offset, get_alignment(field), |
2486 | fac->alignment); |
f104d082 |
2487 | |
2488 | /* remember offset */ |
2489 | field->offset_root = *offset; |
2490 | field->fixed_root = FIELD_FIXED; |
2491 | |
2492 | child = &g_array_index(type->fields, LttField, 0); |
dd3a6d39 |
2493 | ret = precompute_fields_offsets(fac, child, offset, is_compact); |
f104d082 |
2494 | g_assert(ret == 0); /* Seq len cannot have variable len */ |
2495 | |
2496 | child = &g_array_index(type->fields, LttField, 1); |
743e50fd |
2497 | *offset += ltt_align(*offset, get_alignment(child), |
2498 | fac->alignment); |
f104d082 |
2499 | field->array_offset = *offset; |
743e50fd |
2500 | /* Let the child be variable. */ |
2501 | //ret = precompute_fields_offsets(fac, child, offset); |
f104d082 |
2502 | |
2503 | /* Cannot precompute fields offsets of sequence members, and has |
2504 | * variable length. */ |
2505 | return 1; |
2506 | } |
2507 | break; |
2508 | case LTT_STRUCT: |
2509 | { |
2510 | LttField *child; |
2511 | guint i; |
2512 | gint ret=0; |
2513 | |
743e50fd |
2514 | *offset += ltt_align(*offset, get_alignment(field), |
2515 | fac->alignment); |
f104d082 |
2516 | /* remember offset */ |
2517 | field->offset_root = *offset; |
2518 | field->fixed_root = FIELD_FIXED; |
2519 | |
2520 | for(i=0; i< type->fields->len; i++) { |
2521 | child = &g_array_index(type->fields, LttField, i); |
dd3a6d39 |
2522 | ret = precompute_fields_offsets(fac, child, offset, is_compact); |
f104d082 |
2523 | |
2524 | if(ret) break; |
2525 | } |
2526 | return ret; |
2527 | } |
2528 | break; |
2529 | case LTT_UNION: |
2530 | { |
2531 | LttField *child; |
2532 | guint i; |
2533 | gint ret=0; |
2534 | |
743e50fd |
2535 | *offset += ltt_align(*offset, get_alignment(field), |
2536 | fac->alignment); |
f104d082 |
2537 | /* remember offset */ |
2538 | field->offset_root = *offset; |
2539 | field->fixed_root = FIELD_FIXED; |
2540 | |
2541 | for(i=0; i< type->fields->len; i++) { |
2542 | *offset = field->offset_root; |
2543 | child = &g_array_index(type->fields, LttField, i); |
dd3a6d39 |
2544 | ret = precompute_fields_offsets(fac, child, offset, is_compact); |
f104d082 |
2545 | |
2546 | if(ret) break; |
2547 | } |
2548 | *offset = field->offset_root + field->field_size; |
2549 | return ret; |
2550 | } |
2551 | |
2552 | break; |
2553 | case LTT_NONE: |
2554 | default: |
2555 | g_error("precompute_fields_offsets : unknown type"); |
2556 | return 1; |
2557 | } |
2558 | |
2559 | } |
2560 | |
3c165eaf |
2561 | #endif //0 |
f104d082 |
2562 | |
3c165eaf |
2563 | #if 0 |
f104d082 |
2564 | /***************************************************************************** |
2565 | *Function name |
2566 | * precompute_offsets : set the precomputable offset of an event type |
2567 | *Input params |
2568 | * tf : tracefile |
2569 | * event : event type |
2570 | * |
2571 | ****************************************************************************/ |
743e50fd |
2572 | void precompute_offsets(LttFacility *fac, LttEventType *event) |
f104d082 |
2573 | { |
2574 | guint i; |
2575 | off_t offset = 0; |
2576 | gint ret; |
2577 | |
2578 | /* First, compute the size of fixed size fields. Will determine size for |
2579 | * arrays, struct and unions, which is not done by the parser */ |
2580 | for(i=0; i<event->fields->len; i++) { |
2581 | LttField *field = &g_array_index(event->fields, LttField, i); |
743e50fd |
2582 | field_compute_static_size(fac, field); |
f104d082 |
2583 | } |
2584 | |
2585 | /* Precompute all known offsets */ |
2586 | for(i=0; i<event->fields->len; i++) { |
2587 | LttField *field = &g_array_index(event->fields, LttField, i); |
dd3a6d39 |
2588 | if(event->has_compact_data && i == 0) |
2589 | ret = precompute_fields_offsets(fac, field, &offset, 1); |
2590 | else |
2591 | ret = precompute_fields_offsets(fac, field, &offset, 0); |
f104d082 |
2592 | if(ret) break; |
2593 | } |
2594 | } |
3c165eaf |
2595 | #endif //0 |
f104d082 |
2596 | |
e4eced0f |
2597 | |
bbf28e50 |
2598 | |
3aee1200 |
2599 | /***************************************************************************** |
2600 | *Function name |
2601 | * preset_field_type_size : set the fixed sizes of the field type |
2602 | *Input params |
2603 | * tf : tracefile |
2604 | * event_type : event type |
2605 | * offset_root : offset from the root |
2606 | * offset_parent : offset from the parent |
2607 | * fixed_root : Do we know a fixed offset to the root ? |
2608 | * fixed_parent : Do we know a fixed offset to the parent ? |
2609 | * field : field |
2610 | ****************************************************************************/ |
f104d082 |
2611 | |
2612 | |
2613 | |
2614 | // preset the fixed size offsets. Calculate them just like genevent-new : an |
2615 | // increment of a *to value that represents the offset from the start of the |
2616 | // event data. |
2617 | // The preset information is : offsets up to (and including) the first element |
2618 | // of variable size. All subsequent fields must be flagged "VARIABLE OFFSET". |
2619 | #if 0 |
3aee1200 |
2620 | void preset_field_type_size(LttTracefile *tf, LttEventType *event_type, |
2621 | off_t offset_root, off_t offset_parent, |
2622 | enum field_status *fixed_root, enum field_status *fixed_parent, |
2623 | LttField *field) |
2624 | { |
2625 | enum field_status local_fixed_root, local_fixed_parent; |
2626 | guint i; |
2627 | LttType *type; |
dfb73233 |
2628 | |
3aee1200 |
2629 | g_assert(field->fixed_root == FIELD_UNKNOWN); |
2630 | g_assert(field->fixed_parent == FIELD_UNKNOWN); |
2631 | g_assert(field->fixed_size == FIELD_UNKNOWN); |
dfb73233 |
2632 | |
3aee1200 |
2633 | type = field->field_type; |
2634 | |
2635 | field->fixed_root = *fixed_root; |
2636 | if(field->fixed_root == FIELD_FIXED) |
2637 | field->offset_root = offset_root; |
2638 | else |
2639 | field->offset_root = 0; |
2640 | |
2641 | field->fixed_parent = *fixed_parent; |
2642 | if(field->fixed_parent == FIELD_FIXED) |
2643 | field->offset_parent = offset_parent; |
2644 | else |
2645 | field->offset_parent = 0; |
2646 | |
2647 | size_t current_root_offset; |
2648 | size_t current_offset; |
2649 | enum field_status current_child_status, final_child_status; |
2650 | size_t max_size; |
2651 | |
2652 | switch(type->type_class) { |
83e160f2 |
2653 | case LTT_INT_FIXED: |
2654 | case LTT_UINT_FIXED: |
2655 | case LTT_CHAR: |
2656 | case LTT_UCHAR: |
2657 | case LTT_SHORT: |
2658 | case LTT_USHORT: |
3aee1200 |
2659 | case LTT_INT: |
2660 | case LTT_UINT: |
2661 | case LTT_FLOAT: |
2662 | case LTT_ENUM: |
2663 | field->field_size = ltt_type_size(tf->trace, type); |
2664 | field->fixed_size = FIELD_FIXED; |
2665 | break; |
2666 | case LTT_POINTER: |
2667 | field->field_size = (off_t)event_type->facility->pointer_size; |
2668 | field->fixed_size = FIELD_FIXED; |
2669 | break; |
2670 | case LTT_LONG: |
2671 | case LTT_ULONG: |
cb03932a |
2672 | field->field_size = (off_t)event_type->facility->long_size; |
3aee1200 |
2673 | field->fixed_size = FIELD_FIXED; |
2674 | break; |
2675 | case LTT_SIZE_T: |
2676 | case LTT_SSIZE_T: |
2677 | case LTT_OFF_T: |
2678 | field->field_size = (off_t)event_type->facility->size_t_size; |
2679 | field->fixed_size = FIELD_FIXED; |
2680 | break; |
2681 | case LTT_SEQUENCE: |
2682 | local_fixed_root = FIELD_VARIABLE; |
2683 | local_fixed_parent = FIELD_VARIABLE; |
2684 | preset_field_type_size(tf, event_type, |
2685 | 0, 0, |
2686 | &local_fixed_root, &local_fixed_parent, |
2687 | field->child[0]); |
2688 | field->fixed_size = FIELD_VARIABLE; |
2689 | field->field_size = 0; |
27304273 |
2690 | *fixed_root = FIELD_VARIABLE; |
2691 | *fixed_parent = FIELD_VARIABLE; |
3aee1200 |
2692 | break; |
2693 | case LTT_STRING: |
2694 | field->fixed_size = FIELD_VARIABLE; |
2695 | field->field_size = 0; |
27304273 |
2696 | *fixed_root = FIELD_VARIABLE; |
2697 | *fixed_parent = FIELD_VARIABLE; |
3aee1200 |
2698 | break; |
2699 | case LTT_ARRAY: |
2700 | local_fixed_root = FIELD_VARIABLE; |
2701 | local_fixed_parent = FIELD_VARIABLE; |
2702 | preset_field_type_size(tf, event_type, |
2703 | 0, 0, |
2704 | &local_fixed_root, &local_fixed_parent, |
2705 | field->child[0]); |
2706 | field->fixed_size = field->child[0]->fixed_size; |
27304273 |
2707 | if(field->fixed_size == FIELD_FIXED) { |
3aee1200 |
2708 | field->field_size = type->element_number * field->child[0]->field_size; |
27304273 |
2709 | } else { |
3aee1200 |
2710 | field->field_size = 0; |
27304273 |
2711 | *fixed_root = FIELD_VARIABLE; |
2712 | *fixed_parent = FIELD_VARIABLE; |
2713 | } |
3aee1200 |
2714 | break; |
2715 | case LTT_STRUCT: |
2716 | current_root_offset = field->offset_root; |
2717 | current_offset = 0; |
2718 | current_child_status = FIELD_FIXED; |
2719 | for(i=0;i<type->element_number;i++) { |
2720 | preset_field_type_size(tf, event_type, |
2721 | current_root_offset, current_offset, |
2722 | fixed_root, ¤t_child_status, |
2723 | field->child[i]); |
2724 | if(current_child_status == FIELD_FIXED) { |
2725 | current_root_offset += field->child[i]->field_size; |
2726 | current_offset += field->child[i]->field_size; |
2727 | } else { |
2728 | current_root_offset = 0; |
2729 | current_offset = 0; |
2730 | } |
2731 | } |
2732 | if(current_child_status != FIELD_FIXED) { |
2733 | *fixed_parent = current_child_status; |
2734 | field->field_size = 0; |
2735 | field->fixed_size = current_child_status; |
2736 | } else { |
2737 | field->field_size = current_offset; |
2738 | field->fixed_size = FIELD_FIXED; |
2739 | } |
2740 | break; |
2741 | case LTT_UNION: |
2742 | current_root_offset = field->offset_root; |
2743 | current_offset = 0; |
2744 | max_size = 0; |
2745 | final_child_status = FIELD_FIXED; |
2746 | for(i=0;i<type->element_number;i++) { |
2747 | enum field_status current_root_child_status = FIELD_FIXED; |
2748 | enum field_status current_child_status = FIELD_FIXED; |
2749 | preset_field_type_size(tf, event_type, |
2750 | current_root_offset, current_offset, |
2751 | ¤t_root_child_status, ¤t_child_status, |
2752 | field->child[i]); |
2753 | if(current_child_status != FIELD_FIXED) |
2754 | final_child_status = current_child_status; |
2755 | else |
2756 | max_size = max(max_size, field->child[i]->field_size); |
2757 | } |
2758 | if(final_child_status != FIELD_FIXED) { |
62e4e7bf |
2759 | g_error("LTTV does not support variable size fields in unions."); |
2760 | /* This will stop the application. */ |
3aee1200 |
2761 | *fixed_root = final_child_status; |
2762 | *fixed_parent = final_child_status; |
2763 | field->field_size = 0; |
2764 | field->fixed_size = current_child_status; |
2765 | } else { |
2766 | field->field_size = max_size; |
2767 | field->fixed_size = FIELD_FIXED; |
2768 | } |
2769 | break; |
83e160f2 |
2770 | case LTT_NONE: |
2771 | g_error("unexpected type NONE"); |
2772 | break; |
dfb73233 |
2773 | } |
2774 | |
6cd62ccf |
2775 | } |
f104d082 |
2776 | #endif //0 |
3aee1200 |
2777 | |
77175651 |
2778 | /***************************************************************************** |
2779 | *Function name |
2780 | * check_fields_compatibility : Check for compatibility between two fields : |
2781 | * do they use the same inner structure ? |
2782 | *Input params |
2783 | * event_type1 : event type |
2784 | * event_type2 : event type |
2785 | * field1 : field |
2786 | * field2 : field |
2787 | *Returns : 0 if identical |
2788 | * 1 if not. |
2789 | ****************************************************************************/ |
f104d082 |
2790 | // this function checks for equality of field types. Therefore, it does not use |
2791 | // per se offsets. For instance, an aligned version of a structure is |
2792 | // compatible with an unaligned version of the same structure. |
3c165eaf |
2793 | #if 0 |
f104d082 |
2794 | gint check_fields_compatibility(LttEventType *event_type1, |
2795 | LttEventType *event_type2, |
2796 | LttField *field1, LttField *field2) |
2797 | { |
2798 | guint different = 0; |
2312de30 |
2799 | LttType *type1; |
2800 | LttType *type2; |
f104d082 |
2801 | |
2802 | if(field1 == NULL) { |
2803 | if(field2 == NULL) goto end; |
2804 | else { |
2805 | different = 1; |
2806 | goto end; |
2807 | } |
2808 | } else if(field2 == NULL) { |
2809 | different = 1; |
2810 | goto end; |
2811 | } |
2812 | |
2312de30 |
2813 | type1 = &field1->field_type; |
2814 | type2 = &field2->field_type; |
f104d082 |
2815 | |
2816 | if(type1->type_class != type2->type_class) { |
2817 | different = 1; |
2818 | goto end; |
2819 | } |
62e4e7bf |
2820 | if(type1->network != type2->network) { |
2821 | different = 1; |
2822 | goto end; |
2823 | } |
f104d082 |
2824 | |
2825 | switch(type1->type_class) { |
2826 | case LTT_INT_FIXED: |
2827 | case LTT_UINT_FIXED: |
2828 | case LTT_POINTER: |
2829 | case LTT_CHAR: |
2830 | case LTT_UCHAR: |
2831 | case LTT_SHORT: |
2832 | case LTT_USHORT: |
2833 | case LTT_INT: |
2834 | case LTT_UINT: |
2835 | case LTT_LONG: |
2836 | case LTT_ULONG: |
2837 | case LTT_SIZE_T: |
2838 | case LTT_SSIZE_T: |
2839 | case LTT_OFF_T: |
2840 | case LTT_FLOAT: |
2841 | case LTT_ENUM: |
2842 | if(field1->field_size != field2->field_size) |
2843 | different = 1; |
2844 | break; |
2845 | case LTT_STRING: |
2846 | break; |
2847 | case LTT_ARRAY: |
2848 | { |
2849 | LttField *child1 = &g_array_index(type1->fields, LttField, 0); |
2850 | LttField *child2 = &g_array_index(type2->fields, LttField, 0); |
2851 | |
2852 | if(type1->size != type2->size) |
2853 | different = 1; |
2854 | if(check_fields_compatibility(event_type1, event_type2, child1, child2)) |
2855 | different = 1; |
2856 | } |
2857 | break; |
2858 | case LTT_SEQUENCE: |
2859 | { |
2860 | LttField *child1 = &g_array_index(type1->fields, LttField, 1); |
2861 | LttField *child2 = &g_array_index(type2->fields, LttField, 1); |
2862 | |
2863 | if(check_fields_compatibility(event_type1, event_type2, child1, child2)) |
2864 | different = 1; |
2865 | } |
2866 | break; |
2867 | case LTT_STRUCT: |
2868 | case LTT_UNION: |
2869 | { |
2870 | LttField *child; |
2871 | guint i; |
2872 | |
2873 | if(type1->fields->len != type2->fields->len) { |
2874 | different = 1; |
2875 | goto end; |
2876 | } |
2877 | |
2878 | for(i=0; i< type1->fields->len; i++) { |
2312de30 |
2879 | LttField *child1; |
2880 | LttField *child2; |
f104d082 |
2881 | child1 = &g_array_index(type1->fields, LttField, i); |
2882 | child2 = &g_array_index(type2->fields, LttField, i); |
2883 | different = check_fields_compatibility(event_type1, |
2884 | event_type2, child1, child2); |
2885 | |
2886 | if(different) break; |
2887 | } |
2888 | } |
2889 | break; |
2890 | case LTT_NONE: |
2891 | default: |
dd3a6d39 |
2892 | g_error("check_fields_compatibility : unknown type"); |
f104d082 |
2893 | } |
2894 | |
2895 | end: |
2896 | return different; |
2897 | } |
3c165eaf |
2898 | #endif //0 |
f104d082 |
2899 | |
2900 | #if 0 |
77175651 |
2901 | gint check_fields_compatibility(LttEventType *event_type1, |
2902 | LttEventType *event_type2, |
2903 | LttField *field1, LttField *field2) |
2904 | { |
2905 | guint different = 0; |
77175651 |
2906 | guint i; |
2907 | LttType *type1; |
2908 | LttType *type2; |
2909 | |
2910 | if(field1 == NULL) { |
2911 | if(field2 == NULL) goto end; |
2912 | else { |
2913 | different = 1; |
2914 | goto end; |
2915 | } |
2916 | } else if(field2 == NULL) { |
2917 | different = 1; |
2918 | goto end; |
2919 | } |
2920 | |
2921 | g_assert(field1->fixed_root != FIELD_UNKNOWN); |
2922 | g_assert(field2->fixed_root != FIELD_UNKNOWN); |
2923 | g_assert(field1->fixed_parent != FIELD_UNKNOWN); |
2924 | g_assert(field2->fixed_parent != FIELD_UNKNOWN); |
2925 | g_assert(field1->fixed_size != FIELD_UNKNOWN); |
2926 | g_assert(field2->fixed_size != FIELD_UNKNOWN); |
2927 | |
2928 | type1 = field1->field_type; |
2929 | type2 = field2->field_type; |
2930 | |
77175651 |
2931 | if(type1->type_class != type2->type_class) { |
2932 | different = 1; |
2933 | goto end; |
2934 | } |
2935 | if(type1->element_name != type2->element_name) { |
2936 | different = 1; |
2937 | goto end; |
2938 | } |
2939 | |
2940 | switch(type1->type_class) { |
83e160f2 |
2941 | case LTT_INT_FIXED: |
2942 | case LTT_UINT_FIXED: |
2943 | case LTT_POINTER: |
2944 | case LTT_CHAR: |
2945 | case LTT_UCHAR: |
2946 | case LTT_SHORT: |
2947 | case LTT_USHORT: |
77175651 |
2948 | case LTT_INT: |
2949 | case LTT_UINT: |
2950 | case LTT_FLOAT: |
2951 | case LTT_POINTER: |
2952 | case LTT_LONG: |
2953 | case LTT_ULONG: |
2954 | case LTT_SIZE_T: |
2955 | case LTT_SSIZE_T: |
2956 | case LTT_OFF_T: |
2957 | if(field1->field_size != field2->field_size) { |
2958 | different = 1; |
2959 | goto end; |
2960 | } |
2961 | break; |
2962 | case LTT_ENUM: |
2963 | if(type1->element_number != type2->element_number) { |
2964 | different = 1; |
2965 | goto end; |
2966 | } |
2967 | for(i=0;i<type1->element_number;i++) { |
2968 | if(type1->enum_strings[i] != type2->enum_strings[i]) { |
2969 | different = 1; |
2970 | goto end; |
2971 | } |
2972 | } |
2973 | break; |
2974 | case LTT_SEQUENCE: |
2975 | /* Two elements : size and child */ |
2976 | g_assert(type1->element_number != type2->element_number); |
2977 | for(i=0;i<type1->element_number;i++) { |
2978 | if(check_fields_compatibility(event_type1, event_type2, |
2979 | field1->child[0], field2->child[0])) { |
2980 | different = 1; |
2981 | goto end; |
2982 | } |
2983 | } |
2984 | break; |
2985 | case LTT_STRING: |
2986 | break; |
2987 | case LTT_ARRAY: |
2988 | if(field1->field_size != field2->field_size) { |
2989 | different = 1; |
2990 | goto end; |
2991 | } |
2992 | /* Two elements : size and child */ |
2993 | g_assert(type1->element_number != type2->element_number); |
2994 | for(i=0;i<type1->element_number;i++) { |
2995 | if(check_fields_compatibility(event_type1, event_type2, |
2996 | field1->child[0], field2->child[0])) { |
2997 | different = 1; |
2998 | goto end; |
2999 | } |
3000 | } |
3001 | break; |
3002 | case LTT_STRUCT: |
3003 | case LTT_UNION: |
3004 | if(type1->element_number != type2->element_number) { |
3005 | different = 1; |
3006 | break; |
3007 | } |
3008 | for(i=0;i<type1->element_number;i++) { |
3009 | if(check_fields_compatibility(event_type1, event_type2, |
3010 | field1->child[0], field2->child[0])) { |
3011 | different = 1; |
3012 | goto end; |
3013 | } |
3014 | } |
3015 | break; |
3016 | } |
3017 | end: |
3018 | return different; |
3019 | } |
3aee1200 |
3020 | #endif //0 |
6cd62ccf |
3021 | |
f104d082 |
3022 | |
6cd62ccf |
3023 | /***************************************************************************** |
3024 | *Function name |
eed2ef37 |
3025 | * ltt_get_int : get an integer number |
6cd62ccf |
3026 | *Input params |
3aee1200 |
3027 | * reverse_byte_order: must we reverse the byte order ? |
6cd62ccf |
3028 | * size : the size of the integer |
3aee1200 |
3029 | * ptr : the data pointer |
6cd62ccf |
3030 | *Return value |
cf74a6f1 |
3031 | * gint64 : a 64 bits integer |
6cd62ccf |
3032 | ****************************************************************************/ |
3033 | |
eed2ef37 |
3034 | gint64 ltt_get_int(gboolean reverse_byte_order, gint size, void *data) |
6cd62ccf |
3035 | { |
3aee1200 |
3036 | gint64 val; |
cf74a6f1 |
3037 | |
3038 | switch(size) { |
3aee1200 |
3039 | case 1: val = *((gint8*)data); break; |
3040 | case 2: val = ltt_get_int16(reverse_byte_order, data); break; |
3041 | case 4: val = ltt_get_int32(reverse_byte_order, data); break; |
3042 | case 8: val = ltt_get_int64(reverse_byte_order, data); break; |
3043 | default: val = ltt_get_int64(reverse_byte_order, data); |
3044 | g_critical("get_int : integer size %d unknown", size); |
cf74a6f1 |
3045 | break; |
3046 | } |
3047 | |
3aee1200 |
3048 | return val; |
6cd62ccf |
3049 | } |
3aee1200 |
3050 | |
6cd62ccf |
3051 | /***************************************************************************** |
3052 | *Function name |
eed2ef37 |
3053 | * ltt_get_uint : get an unsigned integer number |
6cd62ccf |
3054 | *Input params |
3aee1200 |
3055 | * reverse_byte_order: must we reverse the byte order ? |
3056 | * size : the size of the integer |
3057 | * ptr : the data pointer |
3058 | *Return value |
3059 | * guint64 : a 64 bits unsigned integer |
6cd62ccf |
3060 | ****************************************************************************/ |
3061 | |
eed2ef37 |
3062 | guint64 ltt_get_uint(gboolean reverse_byte_order, gint size, void *data) |
6cd62ccf |
3063 | { |
3aee1200 |
3064 | guint64 val; |
3065 | |
3066 | switch(size) { |
3067 | case 1: val = *((gint8*)data); break; |
3068 | case 2: val = ltt_get_uint16(reverse_byte_order, data); break; |
3069 | case 4: val = ltt_get_uint32(reverse_byte_order, data); break; |
3070 | case 8: val = ltt_get_uint64(reverse_byte_order, data); break; |
3071 | default: val = ltt_get_uint64(reverse_byte_order, data); |
3072 | g_critical("get_uint : unsigned integer size %d unknown", |
3073 | size); |
3074 | break; |
3075 | } |
3076 | |
3077 | return val; |
6cd62ccf |
3078 | } |
3aee1200 |
3079 | |
3080 | |
a5dcde2f |
3081 | /* get the node name of the system */ |
3082 | |
3083 | char * ltt_trace_system_description_node_name (LttSystemDescription * s) |
3084 | { |
3085 | return s->node_name; |
3086 | } |
3087 | |
3088 | |
3089 | /* get the domain name of the system */ |
3090 | |
3091 | char * ltt_trace_system_description_domain_name (LttSystemDescription * s) |
3092 | { |
3093 | return s->domain_name; |
3094 | } |
3095 | |
3096 | |
3097 | /* get the description of the system */ |
3098 | |
3099 | char * ltt_trace_system_description_description (LttSystemDescription * s) |
3100 | { |
3101 | return s->description; |
3102 | } |
3103 | |
3104 | |
bf33dd50 |
3105 | /* get the NTP corrected start time of the trace */ |
7bd563ec |
3106 | LttTime ltt_trace_start_time(LttTrace *t) |
a5dcde2f |
3107 | { |
7bd563ec |
3108 | return t->start_time; |
a5dcde2f |
3109 | } |
3110 | |
bf33dd50 |
3111 | /* get the monotonic start time of the trace */ |
3112 | LttTime ltt_trace_start_time_monotonic(LttTrace *t) |
3113 | { |
3114 | return t->start_time_from_tsc; |
3115 | } |
3116 | |
18206708 |
3117 | LttTracefile *ltt_tracefile_new() |
3118 | { |
3119 | return g_new(LttTracefile, 1); |
3120 | } |
3121 | |
3122 | void ltt_tracefile_destroy(LttTracefile *tf) |
3123 | { |
3124 | g_free(tf); |
3125 | } |
3126 | |
3127 | void ltt_tracefile_copy(LttTracefile *dest, const LttTracefile *src) |
3128 | { |
3129 | *dest = *src; |
3130 | } |
3131 | |
3aee1200 |
3132 | /* Before library loading... */ |
3133 | |
3c165eaf |
3134 | void init(void) |
3aee1200 |
3135 | { |
3136 | LTT_FACILITY_NAME_HEARTBEAT = g_quark_from_string("heartbeat"); |
3137 | LTT_EVENT_NAME_HEARTBEAT = g_quark_from_string("heartbeat"); |
d1bb700c |
3138 | LTT_EVENT_NAME_HEARTBEAT_FULL = g_quark_from_string("heartbeat_full"); |
3aee1200 |
3139 | |
3865ea09 |
3140 | LTT_TRACEFILE_NAME_FACILITIES = g_quark_from_string("/control/facilities"); |
3aee1200 |
3141 | } |