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