92d82357 |
1 | /****************************************************************************** |
2 | * Genevent |
3 | * |
4 | * Event generator. XML to logging C code converter. |
5 | * |
6 | * Program parameters : |
7 | * ./genevent name.xml |
8 | * |
9 | * Will generate ltt-facility-name.h, ltt-facility-id-name.h |
10 | * ltt-facility-loader-name.c, ltt-facility-loader-name.h |
11 | * in the current directory. |
12 | * |
13 | * Supports : |
14 | * - C Alignment |
15 | * - C types : struct, union, enum, basic types. |
16 | * - Architectures : LP32, ILP32, ILP64, LLP64, LP64. |
17 | * |
18 | * Additionnal structures supported : |
19 | * - embedded variable size strings |
20 | * - embedded variable size arrays |
21 | * - embedded variable size sequences |
22 | * |
23 | * Notes : |
24 | * (1) |
25 | * enums are limited to integer type, as this is what is used in C. Note, |
26 | * however, that ISO/IEC 9899:TC2 specify that the type of enum can be char, |
27 | * unsigned int or int. This is implementation defined (compiler). That's why we |
28 | * add a check for sizeof enum. |
29 | * |
30 | * (2) |
31 | * Because of archtecture defined type sizes, we need to ask for ltt_align |
32 | * (which gives the alignment) by passing basic types, not their actual sizes. |
33 | * It's up to ltt_align to determine sizes of types. |
34 | * |
35 | * Note that, from |
36 | * http://www.usenix.org/publications/login/standards/10.data.html |
37 | * (Andrew Josey <a.josey@opengroup.org>) : |
38 | * |
39 | * Data Type LP32 ILP32 ILP64 LLP64 LP64 |
40 | * char 8 8 8 8 8 |
41 | * short 16 16 16 16 16 |
42 | * int32 32 |
43 | * int 16 32 64 32 32 |
44 | * long 32 32 64 32 64 |
45 | * long long (int64) 64 |
46 | * pointer 32 32 64 64 64 |
47 | * |
48 | * With these constraints : |
49 | * sizeof(char) <= sizeof(short) <= sizeof(int) |
50 | * <= sizeof(long) = sizeof(size_t) |
51 | * |
52 | * and therefore sizeof(long) <= sizeof(pointer) <= sizeof(size_t) |
53 | * |
54 | * Which means we only have to remember which is the biggest type in a structure |
55 | * to know the structure's alignment. |
56 | */ |
57 | |
2d2d14a7 |
58 | #define _GNU_SOURCE |
59 | #include <limits.h> |
60 | #include <stdlib.h> |
92d82357 |
61 | #include <errno.h> |
62 | #include <sys/types.h> |
63 | #include <sys/stat.h> |
64 | #include <fcntl.h> |
65 | #include <stdio.h> |
66 | #include <string.h> |
67 | #include <unistd.h> |
2d2d14a7 |
68 | #include <assert.h> |
92d82357 |
69 | |
70 | #include "genevent.h" |
71 | #include "parser.h" |
72 | |
73 | |
74 | #define TRUE 1 |
75 | #define FALSE (!TRUE) |
76 | |
2d2d14a7 |
77 | /* Debugging printf */ |
78 | #ifdef DEBUG |
79 | #define dprintf(...) \ |
80 | do {\ |
81 | printf(__FILE__ ",%u,%s: ",\ |
82 | __LINE__, __func__);\ |
83 | printf(__VA_ARGS__);\ |
84 | } while(0) |
85 | #else |
86 | #define dprintf(...) |
87 | #endif |
88 | |
92d82357 |
89 | /* Code printing */ |
90 | |
2d2d14a7 |
91 | void print_tabs(unsigned int tabs, FILE *fd) |
92 | { |
93 | for(unsigned int i = 0; i<tabs;i++) |
94 | fprintf(fd, "\t"); |
95 | } |
96 | |
2d2d14a7 |
97 | /* print type. |
98 | * |
99 | * Copied from construct_types_and_fields in LTTV facility.c */ |
100 | |
101 | int print_type(type_descriptor_t * td, FILE *fd, unsigned int tabs, |
102 | char *nest_name, char *field_name) |
103 | { |
104 | char basename[PATH_MAX]; |
105 | unsigned int basename_len = 0; |
106 | |
107 | strcpy(basename, nest_name); |
108 | basename_len = strlen(basename); |
109 | |
110 | /* For a named type, we use the type_name directly */ |
111 | if(td->type_name != NULL) { |
112 | strncpy(basename, td->type_name, PATH_MAX); |
113 | basename_len = strlen(basename); |
114 | } else { |
115 | /* For a unnamed type, there must be a field name */ |
7b175edc |
116 | if((basename_len != 0) |
117 | && (basename[basename_len-1] != '_') |
118 | && (field_name[0] != '\0')) { |
2d2d14a7 |
119 | strncat(basename, "_", PATH_MAX - basename_len); |
120 | basename_len = strlen(basename); |
121 | } |
122 | strncat(basename, field_name, PATH_MAX - basename_len); |
123 | } |
124 | |
125 | switch(td->type) { |
126 | case INT_FIXED: |
127 | fprintf(fd, "%s", intOutputTypes[getSizeindex(td->size)]); |
128 | break; |
129 | case UINT_FIXED: |
130 | fprintf(fd, "%s", uintOutputTypes[getSizeindex(td->size)]); |
131 | break; |
132 | case CHAR: |
133 | fprintf(fd, "signed char"); |
134 | break; |
135 | case UCHAR: |
136 | fprintf(fd, "unsigned char"); |
137 | break; |
138 | case SHORT: |
139 | fprintf(fd, "short"); |
140 | break; |
141 | case USHORT: |
142 | fprintf(fd, "unsigned short"); |
143 | break; |
144 | case INT: |
145 | fprintf(fd, "int"); |
146 | break; |
147 | case UINT: |
148 | fprintf(fd, "unsigned int"); |
149 | break; |
150 | case FLOAT: |
151 | fprintf(fd, "%s", floatOutputTypes[getSizeindex(td->size)]); |
152 | break; |
153 | case POINTER: |
458989d8 |
154 | fprintf(fd, "const void *"); |
2d2d14a7 |
155 | break; |
156 | case LONG: |
157 | fprintf(fd, "long"); |
158 | break; |
159 | case ULONG: |
160 | fprintf(fd, "unsigned long"); |
161 | break; |
162 | case SIZE_T: |
163 | fprintf(fd, "size_t"); |
164 | break; |
165 | case SSIZE_T: |
166 | fprintf(fd, "ssize_t"); |
167 | break; |
168 | case OFF_T: |
169 | fprintf(fd, "off_t"); |
170 | break; |
171 | case STRING: |
3d9b9b0c |
172 | fprintf(fd, "const char *"); |
2d2d14a7 |
173 | break; |
174 | case ENUM: |
175 | fprintf(fd, "enum lttng_%s", basename); |
176 | break; |
177 | case ARRAY: |
178 | fprintf(fd, "lttng_array_%s", basename); |
179 | break; |
180 | case SEQUENCE: |
181 | fprintf(fd, "lttng_sequence_%s", basename); |
182 | break; |
183 | case STRUCT: |
184 | fprintf(fd, "struct lttng_%s", basename); |
185 | break; |
186 | case UNION: |
187 | fprintf(fd, "union lttng_%s", basename); |
188 | break; |
189 | default: |
190 | printf("print_type : unknown type\n"); |
191 | return 1; |
192 | } |
193 | |
194 | return 0; |
195 | } |
196 | |
7e97b039 |
197 | /* Print logging function argument */ |
198 | int print_arg(type_descriptor_t * td, FILE *fd, unsigned int tabs, |
199 | char *nest_name, char *field_name) |
200 | { |
201 | char basename[PATH_MAX]; |
202 | unsigned int basename_len = 0; |
203 | |
204 | strcpy(basename, nest_name); |
205 | basename_len = strlen(basename); |
206 | |
207 | /* For a named type, we use the type_name directly */ |
208 | if(td->type_name != NULL) { |
209 | strncpy(basename, td->type_name, PATH_MAX); |
210 | basename_len = strlen(basename); |
211 | } else { |
212 | /* For a unnamed type, there must be a field name */ |
213 | if((basename_len != 0) |
214 | && (basename[basename_len-1] != '_') |
215 | && (field_name[0] != '\0')) { |
216 | strncat(basename, "_", PATH_MAX - basename_len); |
217 | basename_len = strlen(basename); |
218 | } |
219 | strncat(basename, field_name, PATH_MAX - basename_len); |
220 | } |
221 | |
222 | print_tabs(tabs, fd); |
223 | |
224 | switch(td->type) { |
225 | case INT_FIXED: |
226 | fprintf(fd, "%s", intOutputTypes[getSizeindex(td->size)]); |
3ace7bc4 |
227 | fprintf(fd, "lttng_param_%s", field_name); |
7e97b039 |
228 | break; |
229 | case UINT_FIXED: |
230 | fprintf(fd, "%s", uintOutputTypes[getSizeindex(td->size)]); |
3ace7bc4 |
231 | fprintf(fd, "lttng_param_%s", field_name); |
7e97b039 |
232 | break; |
233 | case CHAR: |
234 | fprintf(fd, "signed char"); |
3ace7bc4 |
235 | fprintf(fd, " lttng_param_%s", field_name); |
7e97b039 |
236 | break; |
237 | case UCHAR: |
238 | fprintf(fd, "unsigned char"); |
3ace7bc4 |
239 | fprintf(fd, " lttng_param_%s", field_name); |
7e97b039 |
240 | break; |
241 | case SHORT: |
242 | fprintf(fd, "short"); |
3ace7bc4 |
243 | fprintf(fd, " lttng_param_%s", field_name); |
7e97b039 |
244 | break; |
245 | case USHORT: |
246 | fprintf(fd, "unsigned short"); |
3ace7bc4 |
247 | fprintf(fd, " lttng_param_%s", field_name); |
7e97b039 |
248 | break; |
249 | case INT: |
250 | fprintf(fd, "int"); |
3ace7bc4 |
251 | fprintf(fd, " lttng_param_%s", field_name); |
7e97b039 |
252 | break; |
253 | case UINT: |
254 | fprintf(fd, "unsigned int"); |
3ace7bc4 |
255 | fprintf(fd, " lttng_param_%s", field_name); |
7e97b039 |
256 | break; |
257 | case FLOAT: |
258 | fprintf(fd, "%s", floatOutputTypes[getSizeindex(td->size)]); |
3ace7bc4 |
259 | fprintf(fd, " lttng_param_%s", field_name); |
7e97b039 |
260 | break; |
261 | case POINTER: |
458989d8 |
262 | fprintf(fd, "const void *"); |
3ace7bc4 |
263 | fprintf(fd, " lttng_param_%s", field_name); |
7e97b039 |
264 | break; |
265 | case LONG: |
266 | fprintf(fd, "long"); |
3ace7bc4 |
267 | fprintf(fd, " lttng_param_%s", field_name); |
7e97b039 |
268 | break; |
269 | case ULONG: |
270 | fprintf(fd, "unsigned long"); |
3ace7bc4 |
271 | fprintf(fd, " lttng_param_%s", field_name); |
7e97b039 |
272 | break; |
273 | case SIZE_T: |
274 | fprintf(fd, "size_t"); |
3ace7bc4 |
275 | fprintf(fd, " lttng_param_%s", field_name); |
7e97b039 |
276 | break; |
277 | case SSIZE_T: |
278 | fprintf(fd, "ssize_t"); |
3ace7bc4 |
279 | fprintf(fd, " lttng_param_%s", field_name); |
7e97b039 |
280 | break; |
281 | case OFF_T: |
282 | fprintf(fd, "off_t"); |
3ace7bc4 |
283 | fprintf(fd, " lttng_param_%s", field_name); |
7e97b039 |
284 | break; |
285 | case STRING: |
3d9b9b0c |
286 | fprintf(fd, "const char *"); |
3ace7bc4 |
287 | fprintf(fd, " lttng_param_%s", field_name); |
7e97b039 |
288 | break; |
289 | case ENUM: |
290 | fprintf(fd, "enum lttng_%s", basename); |
3ace7bc4 |
291 | fprintf(fd, " lttng_param_%s", field_name); |
7e97b039 |
292 | break; |
293 | case ARRAY: |
294 | fprintf(fd, "lttng_array_%s", basename); |
3ace7bc4 |
295 | fprintf(fd, " lttng_param_%s", field_name); |
7e97b039 |
296 | break; |
297 | case SEQUENCE: |
298 | fprintf(fd, "lttng_sequence_%s *", basename); |
3ace7bc4 |
299 | fprintf(fd, " lttng_param_%s", field_name); |
7e97b039 |
300 | break; |
301 | case STRUCT: |
302 | fprintf(fd, "struct lttng_%s *", basename); |
3ace7bc4 |
303 | fprintf(fd, " lttng_param_%s", field_name); |
7e97b039 |
304 | break; |
305 | case UNION: |
306 | fprintf(fd, "union lttng_%s *", basename); |
3ace7bc4 |
307 | fprintf(fd, " lttng_param_%s", field_name); |
7e97b039 |
308 | break; |
309 | default: |
310 | printf("print_type : unknown type\n"); |
311 | return 1; |
312 | } |
313 | |
314 | return 0; |
315 | } |
316 | |
317 | |
a3e6ce64 |
318 | /* Does the type has a fixed size ? (as know from the compiler) |
319 | * |
320 | * 1 : fixed size |
321 | * 0 : variable length |
322 | */ |
323 | int has_type_fixed_size(type_descriptor_t *td) |
324 | { |
325 | switch(td->type) { |
326 | case INT_FIXED: |
327 | case UINT_FIXED: |
328 | case CHAR: |
329 | case UCHAR: |
330 | case SHORT: |
331 | case USHORT: |
332 | case INT: |
333 | case UINT: |
334 | case FLOAT: |
335 | case POINTER: |
336 | case LONG: |
337 | case ULONG: |
338 | case SIZE_T: |
339 | case SSIZE_T: |
340 | case OFF_T: |
341 | case ENUM: |
342 | case UNION: /* The union must have fixed size children. Must be checked by |
343 | the parser */ |
344 | return 1; |
345 | break; |
346 | case STRING: |
347 | case SEQUENCE: |
348 | return 0; |
349 | break; |
350 | case STRUCT: |
351 | { |
352 | int has_type_fixed = 0; |
353 | for(unsigned int i=0;i<td->fields.position;i++){ |
354 | field_t *field = (field_t*)(td->fields.array[i]); |
355 | type_descriptor_t *type = field->type; |
356 | |
357 | has_type_fixed = has_type_fixed_size(type); |
358 | if(!has_type_fixed) return 0; |
359 | } |
360 | return 1; |
361 | } |
362 | break; |
363 | case ARRAY: |
364 | assert(td->size >= 0); |
2e415130 |
365 | return has_type_fixed_size(((field_t*)td->fields.array[0])->type); |
366 | break; |
367 | case NONE: |
368 | printf("There is a type defined to NONE : bad.\n"); |
369 | assert(0); |
a3e6ce64 |
370 | break; |
371 | } |
2e415130 |
372 | return 0; //make gcc happy. |
a3e6ce64 |
373 | } |
374 | |
375 | |
376 | |
377 | |
378 | |
2d2d14a7 |
379 | /* print type declaration. |
380 | * |
381 | * Copied from construct_types_and_fields in LTTV facility.c */ |
382 | |
383 | int print_type_declaration(type_descriptor_t * td, FILE *fd, unsigned int tabs, |
384 | char *nest_name, char *field_name) |
385 | { |
386 | char basename[PATH_MAX]; |
387 | unsigned int basename_len = 0; |
388 | |
64a6ab10 |
389 | if(td->custom_write) return 0; /* Does print custom type */ |
390 | |
7b175edc |
391 | strncpy(basename, nest_name, PATH_MAX); |
2d2d14a7 |
392 | basename_len = strlen(basename); |
393 | |
394 | /* For a named type, we use the type_name directly */ |
395 | if(td->type_name != NULL) { |
396 | strncpy(basename, td->type_name, PATH_MAX); |
397 | basename_len = strlen(basename); |
398 | } else { |
7b175edc |
399 | /* For a unnamed type, there must be a field name, except for |
400 | * the array. */ |
401 | if((basename_len != 0) |
402 | && (basename[basename_len-1] != '_' |
403 | && (field_name[0] != '\0'))) { |
2d2d14a7 |
404 | strncat(basename, "_", PATH_MAX - basename_len); |
405 | basename_len = strlen(basename); |
406 | } |
407 | strncat(basename, field_name, PATH_MAX - basename_len); |
2d2d14a7 |
408 | } |
409 | |
410 | switch(td->type) { |
411 | case ENUM: |
412 | fprintf(fd, "enum lttng_%s", basename); |
413 | fprintf(fd, " {\n"); |
414 | for(unsigned int i=0;i<td->labels.position;i++){ |
415 | print_tabs(1, fd); |
70f46ac3 |
416 | fprintf(fd, "LTTNG_%s = %d", ((char*)td->labels.array[i]), |
417 | (*(int*)td->labels_values.array[i])); |
2d2d14a7 |
418 | fprintf(fd, ",\n"); |
419 | } |
420 | fprintf(fd, "};\n"); |
421 | fprintf(fd, "\n"); |
422 | break; |
423 | |
424 | case ARRAY: |
7b175edc |
425 | dprintf("%s\n", basename); |
2d2d14a7 |
426 | assert(td->size >= 0); |
a67cd958 |
427 | if(((field_t*)td->fields.array[0])->type->type_name == NULL) { |
2d2d14a7 |
428 | /* Not a named nested type : we must print its declaration first */ |
a67cd958 |
429 | if(print_type_declaration(((field_t*)td->fields.array[0])->type, |
2d2d14a7 |
430 | fd, 0, basename, "")) return 1; |
431 | } |
2e415130 |
432 | fprintf(fd, "#define LTTNG_ARRAY_SIZE_%s %zu\n", basename, |
2d2d14a7 |
433 | td->size); |
7e97b039 |
434 | fprintf(fd, "typedef "); |
a67cd958 |
435 | if(print_type(((field_t*)td->fields.array[0])->type, |
436 | fd, tabs, basename, "")) return 1; |
2d2d14a7 |
437 | fprintf(fd, " lttng_array_%s[LTTNG_ARRAY_SIZE_%s];\n", basename, |
438 | basename); |
439 | fprintf(fd, "\n"); |
440 | break; |
441 | case SEQUENCE: |
a67cd958 |
442 | /* We assume that the sequence length type does not need to be declared. |
443 | */ |
444 | if(((field_t*)td->fields.array[1])->type->type_name == NULL) { |
2d2d14a7 |
445 | /* Not a named nested type : we must print its declaration first */ |
a67cd958 |
446 | if(print_type_declaration(((field_t*)td->fields.array[1])->type, |
2d2d14a7 |
447 | fd, 0, basename, "")) return 1; |
448 | } |
449 | fprintf(fd, "typedef struct lttng_sequence_%s lttng_sequence_%s;\n", |
450 | basename, |
451 | basename); |
452 | fprintf(fd, "struct lttng_sequence_%s", basename); |
453 | fprintf(fd, " {\n"); |
454 | print_tabs(1, fd); |
a3e6ce64 |
455 | if(print_type(((field_t*)td->fields.array[0])->type, |
456 | fd, tabs, basename, "")) return 1; |
40c18b13 |
457 | fprintf(fd, " len;\n"); |
2d2d14a7 |
458 | print_tabs(1, fd); |
8c9e9076 |
459 | fprintf(fd, "const "); |
a67cd958 |
460 | if(print_type(((field_t*)td->fields.array[1])->type, |
461 | fd, tabs, basename, "")) return 1; |
2d2d14a7 |
462 | fprintf(fd, " *array;\n"); |
d428224c |
463 | fprintf(fd, "};\n"); /* We do not LTT_ALIGN, because we never copy |
464 | it to the buffer directly. */ |
2d2d14a7 |
465 | fprintf(fd, "\n"); |
466 | break; |
467 | |
468 | case STRUCT: |
469 | for(unsigned int i=0;i<td->fields.position;i++){ |
470 | field_t *field = (field_t*)(td->fields.array[i]); |
471 | type_descriptor_t *type = field->type; |
472 | if(type->type_name == NULL) { |
473 | /* Not a named nested type : we must print its declaration first */ |
474 | if(print_type_declaration(type, |
475 | fd, 0, basename, field->name)) return 1; |
476 | } |
477 | } |
478 | fprintf(fd, "struct lttng_%s", basename); |
479 | fprintf(fd, " {\n"); |
480 | for(unsigned int i=0;i<td->fields.position;i++){ |
481 | field_t *field = (field_t*)(td->fields.array[i]); |
482 | type_descriptor_t *type = field->type; |
483 | print_tabs(1, fd); |
47299663 |
484 | if(print_type(type, fd, tabs, basename, field->name)) return 1; |
2d2d14a7 |
485 | fprintf(fd, " "); |
486 | fprintf(fd, "%s", field->name); |
487 | fprintf(fd, ";\n"); |
488 | } |
d428224c |
489 | fprintf(fd, "} LTT_ALIGN;\n"); |
2d2d14a7 |
490 | fprintf(fd, "\n"); |
491 | break; |
492 | case UNION: |
2d2d14a7 |
493 | for(unsigned int i=0;i<td->fields.position;i++){ |
494 | field_t *field = (field_t*)(td->fields.array[i]); |
495 | type_descriptor_t *type = field->type; |
496 | if(type->type_name == NULL) { |
497 | /* Not a named nested type : we must print its declaration first */ |
47299663 |
498 | if(print_type_declaration(type, |
499 | fd, 0, basename, field->name)) return 1; |
2d2d14a7 |
500 | } |
501 | } |
502 | fprintf(fd, "union lttng_%s", basename); |
503 | fprintf(fd, " {\n"); |
504 | for(unsigned i=0;i<td->fields.position;i++){ |
505 | field_t *field = (field_t*)(td->fields.array[i]); |
506 | type_descriptor_t *type = field->type; |
507 | print_tabs(1, fd); |
47299663 |
508 | if(print_type(type, fd, tabs, basename, field->name)) return 1; |
2d2d14a7 |
509 | fprintf(fd, " "); |
510 | fprintf(fd, "%s", field->name); |
511 | fprintf(fd, ";\n"); |
512 | } |
d428224c |
513 | fprintf(fd, "} LTT_ALIGN;\n"); |
2d2d14a7 |
514 | fprintf(fd, "\n"); |
515 | break; |
516 | default: |
517 | dprintf("print_type_declaration : unknown type or nothing to declare.\n"); |
518 | break; |
519 | } |
520 | |
521 | return 0; |
522 | } |
523 | |
a67cd958 |
524 | |
a3e6ce64 |
525 | /* print type alignment. |
526 | * |
527 | * Copied from construct_types_and_fields in LTTV facility.c |
528 | * |
529 | * basename is the name which identifies the type (along with a prefix |
530 | * (possibly)). */ |
a67cd958 |
531 | |
a3e6ce64 |
532 | int print_type_alignment(type_descriptor_t * td, FILE *fd, unsigned int tabs, |
3261899d |
533 | char *nest_name, char *field_name, char *obj_prefix) |
a67cd958 |
534 | { |
a3e6ce64 |
535 | char basename[PATH_MAX]; |
536 | unsigned int basename_len = 0; |
537 | |
538 | strncpy(basename, nest_name, PATH_MAX); |
539 | basename_len = strlen(basename); |
540 | |
541 | /* For a named type, we use the type_name directly */ |
542 | if(td->type_name != NULL) { |
543 | strncpy(basename, td->type_name, PATH_MAX); |
544 | basename_len = strlen(basename); |
a67cd958 |
545 | } else { |
a3e6ce64 |
546 | /* For a unnamed type, there must be a field name, except for |
547 | * the array. */ |
548 | if((basename_len != 0) |
549 | && (basename[basename_len-1] != '_' |
34c1d1b5 |
550 | && field_name != NULL |
a3e6ce64 |
551 | && (field_name[0] != '\0'))) { |
552 | strncat(basename, "_", PATH_MAX - basename_len); |
553 | basename_len = strlen(basename); |
a67cd958 |
554 | } |
34c1d1b5 |
555 | if(field_name != NULL) |
556 | strncat(basename, field_name, PATH_MAX - basename_len); |
a67cd958 |
557 | } |
a3e6ce64 |
558 | |
3d9b9b0c |
559 | if(field_name[0] == '\0') { |
560 | /* We are in a write function : it's the obj that we must align. */ |
561 | switch(td->type) { |
562 | case SEQUENCE: |
3261899d |
563 | fprintf(fd, "lttng_get_alignment_sequence_%s(%s)", basename, |
564 | obj_prefix); |
3d9b9b0c |
565 | break; |
566 | case STRUCT: |
3261899d |
567 | fprintf(fd, "lttng_get_alignment_struct_%s(%s)", basename, |
568 | obj_prefix); |
3d9b9b0c |
569 | break; |
570 | case UNION: |
3261899d |
571 | fprintf(fd, "lttng_get_alignment_union_%s(%s)", basename, |
572 | obj_prefix); |
3d9b9b0c |
573 | break; |
574 | case ARRAY: |
3261899d |
575 | fprintf(fd, "lttng_get_alignment_array_%s(%s)", basename, |
576 | obj_prefix); |
a2ff13ed |
577 | case STRING: |
578 | fprintf(fd, "sizeof(char)"); |
3d9b9b0c |
579 | break; |
8f78c30f |
580 | case INT_FIXED: |
581 | case UINT_FIXED: |
582 | case CHAR: |
583 | case UCHAR: |
584 | case SHORT: |
585 | case USHORT: |
586 | case INT: |
587 | case UINT: |
588 | case FLOAT: |
589 | case POINTER: |
590 | case LONG: |
591 | case ULONG: |
592 | case SIZE_T: |
593 | case SSIZE_T: |
594 | case OFF_T: |
595 | case ENUM: |
596 | fprintf(fd, "sizeof("); |
597 | if(print_type(td, fd, 0, basename, "")) return 1; |
598 | fprintf(fd, ")"); |
599 | break; |
600 | |
3d9b9b0c |
601 | default: |
602 | printf("error : type unexpected\n"); |
603 | return 1; |
604 | break; |
605 | } |
606 | } else { |
607 | |
608 | switch(td->type) { |
609 | case INT_FIXED: |
610 | case UINT_FIXED: |
611 | case CHAR: |
612 | case UCHAR: |
613 | case SHORT: |
614 | case USHORT: |
615 | case INT: |
616 | case UINT: |
617 | case FLOAT: |
618 | case POINTER: |
619 | case LONG: |
620 | case ULONG: |
621 | case SIZE_T: |
622 | case SSIZE_T: |
623 | case OFF_T: |
624 | case ENUM: |
625 | fprintf(fd, "sizeof("); |
626 | if(print_type(td, fd, 0, basename, "")) return 1; |
627 | fprintf(fd, ")"); |
628 | break; |
629 | case STRING: |
630 | fprintf(fd, "sizeof(char)"); |
631 | break; |
632 | case SEQUENCE: |
3261899d |
633 | fprintf(fd, "lttng_get_alignment_sequence_%s(&%s%s)", basename, |
634 | obj_prefix, field_name); |
3d9b9b0c |
635 | break; |
636 | case STRUCT: |
3261899d |
637 | fprintf(fd, "lttng_get_alignment_struct_%s(&%s%s)", basename, |
638 | obj_prefix, field_name); |
3d9b9b0c |
639 | break; |
640 | case UNION: |
3261899d |
641 | fprintf(fd, "lttng_get_alignment_union_%s(&%s%s)", basename, |
642 | obj_prefix, field_name); |
3d9b9b0c |
643 | break; |
644 | case ARRAY: |
3261899d |
645 | fprintf(fd, "lttng_get_alignment_array_%s(%s%s)", basename, |
646 | obj_prefix, field_name); |
3d9b9b0c |
647 | break; |
648 | case NONE: |
649 | printf("error : type NONE unexpected\n"); |
650 | return 1; |
651 | break; |
652 | } |
a3e6ce64 |
653 | } |
3d9b9b0c |
654 | |
a3e6ce64 |
655 | return 0; |
a67cd958 |
656 | } |
657 | |
a3e6ce64 |
658 | /* print type write. |
659 | * |
660 | * Copied from construct_types_and_fields in LTTV facility.c |
661 | * |
662 | * basename is the name which identifies the type (along with a prefix |
663 | * (possibly)). */ |
a67cd958 |
664 | |
a3e6ce64 |
665 | int print_type_write(type_descriptor_t * td, FILE *fd, unsigned int tabs, |
458989d8 |
666 | char *nest_name, char *field_name, char *obj_prefix, int get_ptr) |
a67cd958 |
667 | { |
a67cd958 |
668 | char basename[PATH_MAX]; |
669 | unsigned int basename_len = 0; |
458989d8 |
670 | char get_ptr_char[2] = ""; |
64a6ab10 |
671 | char custom[PATH_MAX] = ""; |
a3e6ce64 |
672 | |
673 | strncpy(basename, nest_name, PATH_MAX); |
a67cd958 |
674 | basename_len = strlen(basename); |
675 | |
676 | /* For a named type, we use the type_name directly */ |
677 | if(td->type_name != NULL) { |
678 | strncpy(basename, td->type_name, PATH_MAX); |
679 | basename_len = strlen(basename); |
680 | } else { |
a3e6ce64 |
681 | /* For a unnamed type, there must be a field name, except for |
682 | * the array. */ |
a67cd958 |
683 | if((basename_len != 0) |
a3e6ce64 |
684 | && (basename[basename_len-1] != '_' |
685 | && (field_name[0] != '\0'))) { |
a67cd958 |
686 | strncat(basename, "_", PATH_MAX - basename_len); |
687 | basename_len = strlen(basename); |
688 | } |
689 | strncat(basename, field_name, PATH_MAX - basename_len); |
690 | } |
691 | |
458989d8 |
692 | if(get_ptr) { |
693 | strcpy(get_ptr_char, "&"); |
694 | } |
695 | |
64a6ab10 |
696 | if(td->custom_write) { |
697 | strcpy(custom, "_custom"); |
698 | } |
699 | |
a67cd958 |
700 | switch(td->type) { |
701 | case INT_FIXED: |
702 | case UINT_FIXED: |
703 | case CHAR: |
704 | case UCHAR: |
705 | case SHORT: |
706 | case USHORT: |
707 | case INT: |
708 | case UINT: |
709 | case FLOAT: |
710 | case POINTER: |
711 | case LONG: |
712 | case ULONG: |
713 | case SIZE_T: |
714 | case SSIZE_T: |
715 | case OFF_T: |
716 | case ENUM: |
a67cd958 |
717 | print_tabs(tabs, fd); |
8f78c30f |
718 | fprintf(fd, "align = "); |
719 | if(print_type_alignment(td, fd, 0, basename, "", "obj")) return 1; |
720 | fprintf(fd, ";\n"); |
721 | fprintf(fd, "\n"); |
722 | print_tabs(tabs, fd); |
723 | fprintf(fd, "if(*len == 0) {\n"); |
724 | print_tabs(tabs+1, fd); |
725 | fprintf(fd, "*to += ltt_align(*to, align); /* align output */\n"); |
726 | print_tabs(tabs, fd); |
727 | fprintf(fd, "} else {\n"); |
728 | print_tabs(tabs+1, fd); |
729 | fprintf(fd, "*len += ltt_align(*to+*len, align); /* alignment, ok to do a memcpy of it */\n"); |
730 | print_tabs(tabs, fd); |
731 | fprintf(fd, "}\n"); |
732 | fprintf(fd, "\n"); |
733 | |
734 | print_tabs(tabs, fd); |
735 | fprintf(fd, "*len += "); |
a3e6ce64 |
736 | fprintf(fd, "sizeof("); |
2e415130 |
737 | if(print_type(td, fd, 0, basename, "")) return 1; |
a67cd958 |
738 | fprintf(fd, ");\n"); |
8f78c30f |
739 | |
a67cd958 |
740 | break; |
741 | case STRING: |
a67cd958 |
742 | print_tabs(tabs, fd); |
3261899d |
743 | fprintf(fd, |
64a6ab10 |
744 | "lttng_write%s_string_%s(buffer, to_base, to, from, len, %s%s);\n", |
745 | custom, basename, obj_prefix, field_name); |
a3e6ce64 |
746 | break; |
747 | case SEQUENCE: |
748 | print_tabs(tabs, fd); |
3261899d |
749 | fprintf(fd, |
64a6ab10 |
750 | "lttng_write%s_sequence_%s(buffer, to_base, to, from, len, %s%s%s);", |
751 | custom, basename, get_ptr_char, obj_prefix, field_name); |
a3e6ce64 |
752 | break; |
753 | case STRUCT: |
754 | print_tabs(tabs, fd); |
3261899d |
755 | fprintf(fd, |
64a6ab10 |
756 | "lttng_write%s_struct_%s(buffer, to_base, to, from, len, %s%s%s);", |
757 | custom, basename, get_ptr_char, obj_prefix, field_name); |
a3e6ce64 |
758 | break; |
759 | case UNION: |
760 | print_tabs(tabs, fd); |
3261899d |
761 | fprintf(fd, |
64a6ab10 |
762 | "lttng_write%s_union_%s(buffer, to_base, to, from, len, %s%s%s);", |
763 | custom, basename, get_ptr_char, obj_prefix, field_name); |
a67cd958 |
764 | break; |
765 | case ARRAY: |
a67cd958 |
766 | print_tabs(tabs, fd); |
3261899d |
767 | fprintf(fd, |
64a6ab10 |
768 | "lttng_write%s_array_%s(buffer, to_base, to, from, len, %s%s);", |
769 | custom, basename, obj_prefix, field_name); |
a3e6ce64 |
770 | break; |
2e415130 |
771 | case NONE: |
772 | printf("Error : type NONE unexpected\n"); |
773 | return 1; |
774 | break; |
a3e6ce64 |
775 | } |
a67cd958 |
776 | |
a3e6ce64 |
777 | return 0; |
778 | } |
a67cd958 |
779 | |
63c831c5 |
780 | /* print need local vars ?. |
781 | * |
782 | * Copied from print_type_write |
783 | * |
784 | * Does the type_write call needs local size and from variables ? |
785 | * return value : 1 yes, 0 no. |
786 | */ |
787 | |
788 | int has_type_local(type_descriptor_t * td) |
789 | { |
790 | switch(td->type) { |
791 | case INT_FIXED: |
792 | case UINT_FIXED: |
793 | case CHAR: |
794 | case UCHAR: |
795 | case SHORT: |
796 | case USHORT: |
797 | case INT: |
798 | case UINT: |
799 | case FLOAT: |
800 | case POINTER: |
801 | case LONG: |
802 | case ULONG: |
803 | case SIZE_T: |
804 | case SSIZE_T: |
805 | case OFF_T: |
806 | case ENUM: |
807 | return 1; |
808 | break; |
809 | case STRING: |
810 | case SEQUENCE: |
811 | case STRUCT: |
812 | case UNION: |
813 | case ARRAY: |
814 | return 0; |
815 | break; |
816 | case NONE: |
817 | printf("Error : type NONE unexpected\n"); |
818 | return 1; |
819 | break; |
820 | } |
821 | |
822 | return 0; |
823 | } |
824 | |
a67cd958 |
825 | |
a67cd958 |
826 | |
a3e6ce64 |
827 | /* print type alignment function. |
828 | * |
829 | * Copied from construct_types_and_fields in LTTV facility.c |
830 | * |
831 | * basename is the name which identifies the type (along with a prefix |
832 | * (possibly)). */ |
833 | |
834 | int print_type_alignment_fct(type_descriptor_t * td, FILE *fd, |
835 | unsigned int tabs, |
836 | char *nest_name, char *field_name) |
837 | { |
838 | char basename[PATH_MAX]; |
839 | unsigned int basename_len = 0; |
840 | |
64a6ab10 |
841 | if(td->custom_write) return 0; /* Does print custom type */ |
842 | |
a3e6ce64 |
843 | strncpy(basename, nest_name, PATH_MAX); |
844 | basename_len = strlen(basename); |
845 | |
846 | /* For a named type, we use the type_name directly */ |
847 | if(td->type_name != NULL) { |
848 | strncpy(basename, td->type_name, PATH_MAX); |
849 | basename_len = strlen(basename); |
850 | } else { |
851 | /* For a unnamed type, there must be a field name, except for |
852 | * the array. */ |
853 | if((basename_len != 0) |
854 | && (basename[basename_len-1] != '_' |
855 | && (field_name[0] != '\0'))) { |
856 | strncat(basename, "_", PATH_MAX - basename_len); |
857 | basename_len = strlen(basename); |
858 | } |
859 | strncat(basename, field_name, PATH_MAX - basename_len); |
860 | } |
861 | |
862 | switch(td->type) { |
863 | case SEQUENCE: |
ba899d3d |
864 | if(((field_t*)td->fields.array[1])->type->type_name == NULL) { |
865 | /* Not a named nested type : we must print its align fct */ |
866 | if(print_type_alignment_fct(((field_t*)td->fields.array[1])->type, fd, |
867 | 0, basename, "")) return 1; |
868 | } |
a3e6ce64 |
869 | /* Function header */ |
870 | fprintf(fd, "static inline size_t lttng_get_alignment_sequence_%s(\n", |
871 | basename); |
872 | print_tabs(2, fd); |
2e415130 |
873 | if(print_type(td, fd, 0, basename, "")) return 1; |
a3e6ce64 |
874 | fprintf(fd, " *obj)\n"); |
875 | fprintf(fd, "{\n"); |
876 | print_tabs(1, fd); |
877 | fprintf(fd, "size_t align=0, localign;"); |
878 | fprintf(fd, "\n"); |
879 | print_tabs(1, fd); |
880 | fprintf(fd, "localign = "); |
881 | if(print_type_alignment(((field_t*)td->fields.array[0])->type, |
3261899d |
882 | fd, 0, basename, "len", "obj->")) return 1; |
a3e6ce64 |
883 | fprintf(fd, ";\n"); |
884 | print_tabs(1, fd); |
885 | fprintf(fd, "align = max(align, localign);\n"); |
886 | fprintf(fd, "\n"); |
887 | print_tabs(1, fd); |
888 | fprintf(fd, "localign = "); |
889 | if(print_type_alignment(((field_t*)td->fields.array[1])->type, |
3261899d |
890 | fd, 0, basename, "array[0]", "obj->")) return 1; |
a3e6ce64 |
891 | fprintf(fd, ";\n"); |
892 | print_tabs(1, fd); |
893 | fprintf(fd, "align = max(align, localign);\n"); |
894 | fprintf(fd, "\n"); |
895 | print_tabs(1, fd); |
896 | fprintf(fd, "return align;\n"); |
897 | break; |
898 | case STRUCT: |
ba899d3d |
899 | for(unsigned int i=0;i<td->fields.position;i++){ |
900 | field_t *field = (field_t*)(td->fields.array[i]); |
901 | type_descriptor_t *type = field->type; |
902 | if(type->type_name == NULL) { |
903 | /* Not a named nested type : we must print its align fct */ |
904 | if(print_type_alignment_fct(type, fd, |
905 | 0, basename, field->name)) return 1; |
906 | } |
907 | } |
a3e6ce64 |
908 | /* Function header */ |
909 | fprintf(fd, "static inline size_t lttng_get_alignment_struct_%s(\n", |
910 | basename); |
911 | print_tabs(2, fd); |
2e415130 |
912 | if(print_type(td, fd, 0, basename, "")) return 1; |
a3e6ce64 |
913 | fprintf(fd, " *obj)\n"); |
914 | fprintf(fd, "{\n"); |
915 | print_tabs(1, fd); |
916 | fprintf(fd, "size_t align=0, localign;"); |
917 | fprintf(fd, "\n"); |
918 | for(unsigned int i=0;i<td->fields.position;i++){ |
919 | field_t *field = (field_t*)(td->fields.array[i]); |
920 | type_descriptor_t *type = field->type; |
921 | print_tabs(1, fd); |
922 | fprintf(fd, "localign = "); |
3261899d |
923 | if(print_type_alignment(type, fd, 0, basename, field->name, "obj->")) |
924 | return 1; |
a3e6ce64 |
925 | fprintf(fd, ";\n"); |
926 | print_tabs(1, fd); |
927 | fprintf(fd, "align = max(align, localign);\n"); |
928 | fprintf(fd, "\n"); |
929 | } |
930 | print_tabs(1, fd); |
931 | fprintf(fd, "return align;\n"); |
932 | |
a67cd958 |
933 | break; |
a3e6ce64 |
934 | case UNION: |
ba899d3d |
935 | for(unsigned int i=0;i<td->fields.position;i++){ |
936 | field_t *field = (field_t*)(td->fields.array[i]); |
937 | type_descriptor_t *type = field->type; |
938 | if(type->type_name == NULL) { |
939 | /* Not a named nested type : we must print its align fct */ |
940 | if(print_type_alignment_fct(type, fd, |
941 | 0, basename, field->name)) return 1; |
942 | } |
943 | } |
a3e6ce64 |
944 | /* Function header */ |
945 | fprintf(fd, "static inline size_t lttng_get_alignment_union_%s(\n", |
946 | basename); |
947 | print_tabs(2, fd); |
2e415130 |
948 | if(print_type(td, fd, 0, basename, "")) return 1; |
a3e6ce64 |
949 | fprintf(fd, " *obj)\n"); |
950 | fprintf(fd, "{\n"); |
951 | print_tabs(1, fd); |
952 | fprintf(fd, "size_t align=0, localign;"); |
953 | fprintf(fd, "\n"); |
954 | for(unsigned int i=0;i<td->fields.position;i++){ |
955 | field_t *field = (field_t*)(td->fields.array[i]); |
956 | type_descriptor_t *type = field->type; |
957 | print_tabs(1, fd); |
958 | fprintf(fd, "localign = "); |
3261899d |
959 | if(print_type_alignment(type, fd, 0, basename, field->name, "obj->")) |
960 | return 1; |
a3e6ce64 |
961 | fprintf(fd, ";\n"); |
962 | print_tabs(1, fd); |
963 | fprintf(fd, "align = max(align, localign);\n"); |
964 | fprintf(fd, "\n"); |
965 | } |
966 | print_tabs(1, fd); |
967 | fprintf(fd, "return align;\n"); |
968 | |
969 | break; |
970 | case ARRAY: |
ba899d3d |
971 | if(((field_t*)td->fields.array[0])->type->type_name == NULL) { |
972 | /* Not a named nested type : we must print its align fct */ |
973 | if(print_type_alignment_fct(((field_t*)td->fields.array[0])->type, fd, |
974 | 0, basename, "")) return 1; |
975 | } |
a3e6ce64 |
976 | /* Function header */ |
977 | fprintf(fd, "static inline size_t lttng_get_alignment_array_%s(\n", |
978 | basename); |
979 | print_tabs(2, fd); |
2e415130 |
980 | if(print_type(td, fd, 0, basename, "")) return 1; |
a3e6ce64 |
981 | fprintf(fd, " obj)\n"); |
982 | fprintf(fd, "{\n"); |
983 | print_tabs(1, fd); |
984 | fprintf(fd, "return \n"); |
985 | if(print_type_alignment(((field_t*)td->fields.array[0])->type, |
3261899d |
986 | fd, 0, basename, "", "obj[0]")) |
987 | return 1; |
a3e6ce64 |
988 | fprintf(fd, ";\n"); |
989 | break; |
990 | default: |
71e09db9 |
991 | dprintf("print_type_alignment_fct : type has no alignment function.\n"); |
34c1d1b5 |
992 | return 0; |
a3e6ce64 |
993 | break; |
994 | } |
995 | |
996 | |
997 | /* Function footer */ |
998 | fprintf(fd, "}\n"); |
999 | fprintf(fd, "\n"); |
1000 | |
2e415130 |
1001 | return 0; |
a3e6ce64 |
1002 | } |
1003 | |
1004 | /* print type write function. |
1005 | * |
1006 | * Copied from construct_types_and_fields in LTTV facility.c |
1007 | * |
1008 | * basename is the name which identifies the type (along with a prefix |
1009 | * (possibly)). */ |
1010 | |
1011 | int print_type_write_fct(type_descriptor_t * td, FILE *fd, unsigned int tabs, |
1012 | char *nest_name, char *field_name) |
1013 | { |
1014 | char basename[PATH_MAX]; |
1015 | unsigned int basename_len = 0; |
1016 | |
64a6ab10 |
1017 | if(td->custom_write) return 0; /* Does print custom type */ |
1018 | |
a3e6ce64 |
1019 | strncpy(basename, nest_name, PATH_MAX); |
1020 | basename_len = strlen(basename); |
1021 | |
1022 | /* For a named type, we use the type_name directly */ |
1023 | if(td->type_name != NULL) { |
1024 | strncpy(basename, td->type_name, PATH_MAX); |
1025 | basename_len = strlen(basename); |
1026 | } else { |
1027 | /* For a unnamed type, there must be a field name, except for |
1028 | * the array. */ |
1029 | if((basename_len != 0) |
1030 | && (basename[basename_len-1] != '_' |
1031 | && (field_name[0] != '\0'))) { |
1032 | strncat(basename, "_", PATH_MAX - basename_len); |
1033 | basename_len = strlen(basename); |
1034 | } |
1035 | strncat(basename, field_name, PATH_MAX - basename_len); |
1036 | } |
1037 | |
34c1d1b5 |
1038 | switch(td->type) { |
1039 | case SEQUENCE: |
ba899d3d |
1040 | if(((field_t*)td->fields.array[1])->type->type_name == NULL) { |
1041 | /* Not a named nested type : we must print its write fct */ |
1042 | if(print_type_write_fct(((field_t*)td->fields.array[1])->type, fd, |
1043 | 0, basename, "")) return 1; |
1044 | } |
1045 | break; |
34c1d1b5 |
1046 | case STRUCT: |
ba899d3d |
1047 | for(unsigned int i=0;i<td->fields.position;i++){ |
1048 | field_t *field = (field_t*)(td->fields.array[i]); |
1049 | type_descriptor_t *type = field->type; |
1050 | if(type->type_name == NULL) { |
1051 | /* Not a named nested type : we must print its write fct */ |
1052 | if(print_type_write_fct(type, fd, |
1053 | 0, basename, field->name)) return 1; |
1054 | } |
1055 | } |
1056 | break; |
34c1d1b5 |
1057 | case UNION: |
ba899d3d |
1058 | for(unsigned int i=0;i<td->fields.position;i++){ |
1059 | field_t *field = (field_t*)(td->fields.array[i]); |
1060 | type_descriptor_t *type = field->type; |
1061 | if(type->type_name == NULL) { |
1062 | /* Not a named nested type : we must print its write fct */ |
1063 | if(print_type_write_fct(type, fd, |
1064 | 0, basename, field->name)) return 1; |
1065 | } |
1066 | } |
1067 | break; |
34c1d1b5 |
1068 | case ARRAY: |
ba899d3d |
1069 | if(((field_t*)td->fields.array[0])->type->type_name == NULL) { |
1070 | /* Not a named nested type : we must print its write fct */ |
1071 | if(print_type_write_fct(((field_t*)td->fields.array[0])->type, fd, |
1072 | 0, basename, "")) return 1; |
1073 | } |
1074 | break; |
a2ff13ed |
1075 | case STRING: |
34c1d1b5 |
1076 | break; |
1077 | default: |
71e09db9 |
1078 | dprintf("print_type_write_fct : type has no write function.\n"); |
34c1d1b5 |
1079 | return 0; |
1080 | break; |
1081 | } |
1082 | |
a3e6ce64 |
1083 | /* Print header */ |
1084 | switch(td->type) { |
a67cd958 |
1085 | case SEQUENCE: |
34c1d1b5 |
1086 | fprintf(fd, "static inline void lttng_write_sequence_%s(\n", |
a3e6ce64 |
1087 | basename); |
a67cd958 |
1088 | break; |
a3e6ce64 |
1089 | case STRUCT: |
6e27ba88 |
1090 | fprintf(fd, "static inline void lttng_write_struct_%s(\n", basename); |
a67cd958 |
1091 | break; |
a3e6ce64 |
1092 | case UNION: |
6e27ba88 |
1093 | fprintf(fd, "static inline void lttng_write_union_%s(\n", basename); |
a3e6ce64 |
1094 | break; |
1095 | case ARRAY: |
6e27ba88 |
1096 | fprintf(fd, "static inline void lttng_write_array_%s(\n", basename); |
a3e6ce64 |
1097 | break; |
a2ff13ed |
1098 | case STRING: |
1099 | fprintf(fd, "static inline void lttng_write_string_%s(\n", basename); |
1100 | break; |
a3e6ce64 |
1101 | default: |
1102 | printf("print_type_write_fct : type has no write function.\n"); |
a67cd958 |
1103 | break; |
a67cd958 |
1104 | } |
1105 | |
a3e6ce64 |
1106 | print_tabs(2, fd); |
1107 | fprintf(fd, "void *buffer,\n"); |
1108 | print_tabs(2, fd); |
1109 | fprintf(fd, "size_t *to_base,\n"); |
1110 | print_tabs(2, fd); |
1111 | fprintf(fd, "size_t *to,\n"); |
1112 | print_tabs(2, fd); |
458989d8 |
1113 | fprintf(fd, "const void **from,\n"); |
a3e6ce64 |
1114 | print_tabs(2, fd); |
1115 | fprintf(fd, "size_t *len,\n"); |
1116 | print_tabs(2, fd); |
2e415130 |
1117 | if(print_type(td, fd, 0, basename, "")) return 1; |
a3e6ce64 |
1118 | |
1119 | switch(td->type) { |
1120 | case SEQUENCE: |
1121 | fprintf(fd, " *obj)\n"); |
1122 | break; |
1123 | case STRUCT: |
1124 | fprintf(fd, " *obj)\n"); |
1125 | break; |
1126 | case UNION: |
1127 | fprintf(fd, " *obj)\n"); |
1128 | break; |
1129 | case ARRAY: |
1130 | fprintf(fd, " obj)\n"); |
1131 | break; |
a2ff13ed |
1132 | case STRING: |
1133 | fprintf(fd, " obj)\n"); |
1134 | break; |
a3e6ce64 |
1135 | default: |
1136 | printf("print_type_write_fct : type has no write function.\n"); |
1137 | break; |
1138 | } |
1139 | |
1140 | fprintf(fd, "{\n"); |
3ace7bc4 |
1141 | |
f5f2fde4 |
1142 | switch(td->type) { |
1143 | case STRING: |
1144 | print_tabs(1, fd); |
1145 | fprintf(fd, "size_t size;\n"); |
1146 | break; |
1147 | default: |
1148 | break; |
1149 | } |
1150 | |
a3e6ce64 |
1151 | print_tabs(1, fd); |
3ace7bc4 |
1152 | fprintf(fd, "size_t align;\n"); |
a3e6ce64 |
1153 | fprintf(fd, "\n"); |
1154 | |
1155 | switch(td->type) { |
1156 | case SEQUENCE: |
1157 | case STRING: |
1158 | print_tabs(1, fd); |
1159 | fprintf(fd, "/* Flush pending memcpy */\n"); |
1160 | print_tabs(1, fd); |
1161 | fprintf(fd, "if(*len != 0) {\n"); |
1162 | print_tabs(2, fd); |
1163 | fprintf(fd, "if(buffer != NULL)\n"); |
1164 | print_tabs(3, fd); |
1165 | fprintf(fd, "memcpy(buffer+*to_base+*to, *from, *len);\n"); |
1166 | print_tabs(1, fd); |
1167 | fprintf(fd, "}\n"); |
1168 | print_tabs(1, fd); |
1169 | fprintf(fd, "*to += *len;\n"); |
1170 | print_tabs(1, fd); |
1171 | fprintf(fd, "*len = 0;\n"); |
1172 | fprintf(fd, "\n"); |
1173 | break; |
1174 | case STRUCT: |
1175 | case UNION: |
1176 | case ARRAY: |
1177 | break; |
1178 | default: |
1179 | printf("print_type_write_fct : type has no write function.\n"); |
1180 | break; |
1181 | } |
1182 | |
1183 | print_tabs(1, fd); |
34c1d1b5 |
1184 | fprintf(fd, "align = "); |
0231ef76 |
1185 | if(print_type_alignment(td, fd, 0, basename, "", "obj")) return 1; |
a3e6ce64 |
1186 | fprintf(fd, ";\n"); |
1187 | fprintf(fd, "\n"); |
1188 | print_tabs(1, fd); |
1189 | fprintf(fd, "if(*len == 0) {\n"); |
1190 | print_tabs(2, fd); |
1191 | fprintf(fd, "*to += ltt_align(*to, align); /* align output */\n"); |
1192 | print_tabs(1, fd); |
1193 | fprintf(fd, "} else {\n"); |
1194 | print_tabs(2, fd); |
1195 | fprintf(fd, "*len += ltt_align(*to+*len, align); /* alignment, ok to do a memcpy of it */\n"); |
1196 | print_tabs(1, fd); |
1197 | fprintf(fd, "}\n"); |
1198 | fprintf(fd, "\n"); |
1199 | |
1200 | /* First, check if the type has a fixed size. If it is the case, then the size |
1201 | * to write is know by the compiler : simply use a sizeof() */ |
1202 | if(has_type_fixed_size(td)) { |
1203 | print_tabs(1, fd); |
1204 | fprintf(fd, "/* Contains only fixed size fields : use compiler sizeof() */\n"); |
1205 | fprintf(fd, "\n"); |
1206 | print_tabs(1, fd); |
f5f2fde4 |
1207 | fprintf(fd, "*len += sizeof("); |
2e415130 |
1208 | if(print_type(td, fd, 0, basename, field_name)) return 1; |
a3e6ce64 |
1209 | fprintf(fd, ");\n"); |
1210 | } else { |
1211 | /* The type contains nested variable size subtypes : |
1212 | * we must write field by field. */ |
1213 | print_tabs(1, fd); |
1214 | fprintf(fd, "/* Contains variable sized fields : must explode the structure */\n"); |
1215 | fprintf(fd, "\n"); |
1216 | |
1217 | switch(td->type) { |
1218 | case SEQUENCE: |
1219 | print_tabs(1, fd); |
1220 | fprintf(fd, "/* Copy members */\n"); |
3261899d |
1221 | // print_tabs(1, fd); |
1222 | // fprintf(fd, "size = sizeof(\n"); |
a3e6ce64 |
1223 | if(print_type_write(((field_t*)td->fields.array[0])->type, |
458989d8 |
1224 | fd, 1, basename, "len", "obj->", 1)) return 1; |
3261899d |
1225 | fprintf(fd, "\n"); |
1226 | // fprintf(fd, ");\n"); |
1227 | // print_tabs(1, fd); |
1228 | // fprintf(fd, "*to += ltt_align(*to, size);\n"); |
a3e6ce64 |
1229 | print_tabs(1, fd); |
1230 | fprintf(fd, "if(buffer != NULL)\n"); |
1231 | print_tabs(2, fd); |
8f78c30f |
1232 | fprintf(fd, "memcpy(buffer+*to_base+*to, &obj->len, *len);\n"); |
a3e6ce64 |
1233 | print_tabs(1, fd); |
8f78c30f |
1234 | fprintf(fd, "*to += *len;\n"); |
1235 | print_tabs(1, fd); |
1236 | fprintf(fd, "*len = 0;\n"); |
a3e6ce64 |
1237 | fprintf(fd, "\n"); |
8f78c30f |
1238 | |
a3e6ce64 |
1239 | /* Write the child : varlen child or not ? */ |
1240 | if(has_type_fixed_size(((field_t*)td->fields.array[1])->type)) { |
1241 | /* Fixed size len child : use a multiplication of its size */ |
3261899d |
1242 | // print_tabs(1, fd); |
1243 | // fprintf(fd, "size = sizeof(\n"); |
8f78c30f |
1244 | |
1245 | //print_tabs(1, fd); |
1246 | /* We know that *len does not contain alignment because of the |
1247 | * previous align output. len is always 0 here. */ |
a3e6ce64 |
1248 | if(print_type_write(((field_t*)td->fields.array[1])->type, |
8f78c30f |
1249 | fd, 1, basename, "array[0]", "obj->", 1)) |
1250 | return 1; |
3261899d |
1251 | // fprintf(fd, ");\n"); |
8f78c30f |
1252 | fprintf(fd, "\n"); |
a3e6ce64 |
1253 | print_tabs(1, fd); |
8f78c30f |
1254 | fprintf(fd, "*len = obj->len * (*len);\n"); |
a3e6ce64 |
1255 | print_tabs(1, fd); |
1256 | fprintf(fd, "if(buffer != NULL)\n"); |
1257 | print_tabs(2, fd); |
8f78c30f |
1258 | fprintf(fd, "memcpy(buffer+*to_base+*to, obj->array, *len);\n"); |
1259 | print_tabs(1, fd); |
1260 | fprintf(fd, "*to += *len;\n"); |
a3e6ce64 |
1261 | print_tabs(1, fd); |
8f78c30f |
1262 | fprintf(fd, "*len = 0;\n"); |
a3e6ce64 |
1263 | fprintf(fd, "\n"); |
1264 | } else { |
1265 | print_tabs(1, fd); |
1266 | fprintf(fd, "/* Variable length child : iter. */\n"); |
1267 | print_tabs(1, fd); |
1268 | fprintf(fd, "for(unsigned int i=0; i<obj->len; i++) {\n"); |
1269 | if(print_type_write(((field_t*)td->fields.array[1])->type, |
458989d8 |
1270 | fd, 2, basename, "array[i]", "obj->", 1)) return 1; |
a3e6ce64 |
1271 | print_tabs(1, fd); |
1272 | fprintf(fd, "}\n"); |
1273 | } |
1274 | fprintf(fd, "\n"); |
1275 | print_tabs(1, fd); |
1276 | fprintf(fd, "/* Realign the *to_base on arch size, set *to to 0 */\n"); |
1277 | print_tabs(1, fd); |
2a5eec7d |
1278 | fprintf(fd, "*to += ltt_align(*to, sizeof(void *));\n"); |
a3e6ce64 |
1279 | print_tabs(1, fd); |
1280 | fprintf(fd, "*to_base = *to_base+*to;\n"); |
1281 | print_tabs(1, fd); |
1282 | fprintf(fd, "*to = 0;\n"); |
1283 | fprintf(fd, "\n"); |
a2ff13ed |
1284 | print_tabs(1, fd); |
a3e6ce64 |
1285 | fprintf(fd, "/* Put source *from just after the C sequence */\n"); |
1286 | print_tabs(1, fd); |
1287 | fprintf(fd, "*from = obj+1;\n"); |
1288 | break; |
1289 | case STRING: |
a2ff13ed |
1290 | print_tabs(1, fd); |
caabcb43 |
1291 | fprintf(fd, "size = strlen(obj) + 1; /* Include final NULL char. */\n"); |
a3e6ce64 |
1292 | print_tabs(1, fd); |
1293 | fprintf(fd, "if(buffer != NULL)\n"); |
1294 | print_tabs(2, fd); |
1295 | fprintf(fd, "memcpy(buffer+*to_base+*to, obj, size);\n"); |
1296 | print_tabs(1, fd); |
1297 | fprintf(fd, "*to += size;\n"); |
1298 | fprintf(fd, "\n"); |
1299 | print_tabs(1, fd); |
1300 | fprintf(fd, "/* Realign the *to_base on arch size, set *to to 0 */\n"); |
1301 | print_tabs(1, fd); |
2a5eec7d |
1302 | fprintf(fd, "*to += ltt_align(*to, sizeof(void *));\n"); |
a3e6ce64 |
1303 | print_tabs(1, fd); |
1304 | fprintf(fd, "*to_base = *to_base+*to;\n"); |
1305 | print_tabs(1, fd); |
1306 | fprintf(fd, "*to = 0;\n"); |
1307 | fprintf(fd, "\n"); |
a3e6ce64 |
1308 | print_tabs(1, fd); |
a2ff13ed |
1309 | fprintf(fd, "/* Put source *from just after the C string */\n"); |
1310 | print_tabs(1, fd); |
1311 | fprintf(fd, "*from += size;\n"); |
a3e6ce64 |
1312 | break; |
1313 | case STRUCT: |
1314 | for(unsigned int i=0;i<td->fields.position;i++){ |
1315 | field_t *field = (field_t*)(td->fields.array[i]); |
1316 | type_descriptor_t *type = field->type; |
1317 | if(print_type_write(type, |
458989d8 |
1318 | fd, 1, basename, field->name, "obj->", 1)) return 1; |
a3e6ce64 |
1319 | fprintf(fd, "\n"); |
1320 | } |
1321 | break; |
1322 | case UNION: |
1323 | printf("ERROR : A union CANNOT contain a variable size child.\n"); |
1324 | return 1; |
1325 | break; |
1326 | case ARRAY: |
1327 | /* Write the child : varlen child or not ? */ |
1328 | if(has_type_fixed_size(((field_t*)td->fields.array[0])->type)) { |
1329 | /* Error : if an array has a variable size, then its child must also |
1330 | * have a variable size. */ |
1331 | assert(0); |
1332 | } else { |
1333 | print_tabs(1, fd); |
1334 | fprintf(fd, "/* Variable length child : iter. */\n"); |
1335 | print_tabs(1, fd); |
1336 | fprintf(fd, "for(unsigned int i=0; i<LTTNG_ARRAY_SIZE_%s; i++) {\n", basename); |
3261899d |
1337 | if(print_type_write(((field_t*)td->fields.array[0])->type, |
458989d8 |
1338 | fd, 2, basename, "", "obj->array[i]", 1)) return 1; |
a3e6ce64 |
1339 | print_tabs(1, fd); |
1340 | fprintf(fd, "}\n"); |
1341 | } |
1342 | break; |
1343 | default: |
1344 | printf("print_type_write_fct : type has no write function.\n"); |
1345 | break; |
1346 | } |
1347 | |
1348 | |
1349 | } |
1350 | |
1351 | |
1352 | /* Function footer */ |
1353 | fprintf(fd, "}\n"); |
1354 | fprintf(fd, "\n"); |
a67cd958 |
1355 | return 0; |
1356 | } |
1357 | |
1358 | |
1359 | |
47299663 |
1360 | /* Print the logging function of an event. This is the core of genevent */ |
a3e6ce64 |
1361 | int print_event_logging_function(char *basename, facility_t *fac, |
1362 | event_t *event, FILE *fd) |
47299663 |
1363 | { |
1364 | fprintf(fd, "static inline void trace_%s(\n", basename); |
3d9b9b0c |
1365 | int has_argument = 0; |
63c831c5 |
1366 | int has_type_fixed = 0; |
3d9b9b0c |
1367 | |
1368 | /* Does it support per trace tracing ? */ |
1369 | if(event->per_trace) { |
1370 | print_tabs(2, fd); |
1371 | fprintf(fd, "struct ltt_trace_struct *dest_trace"); |
1372 | has_argument = 1; |
1373 | } |
1374 | |
1375 | /* Does it support per tracefile tracing ? */ |
1376 | if(event->per_tracefile) { |
1377 | if(has_argument) { |
1378 | fprintf(fd, ","); |
1379 | fprintf(fd, "\n"); |
1380 | } |
1381 | fprintf(fd, "unsigned int tracefile_index"); |
1382 | has_argument = 1; |
1383 | } |
1384 | |
47299663 |
1385 | for(unsigned int j = 0; j < event->fields.position; j++) { |
1386 | /* For each field, print the function argument */ |
1387 | field_t *f = (field_t*)event->fields.array[j]; |
1388 | type_descriptor_t *t = f->type; |
3d9b9b0c |
1389 | if(has_argument) { |
47299663 |
1390 | fprintf(fd, ","); |
1391 | fprintf(fd, "\n"); |
1392 | } |
3d9b9b0c |
1393 | if(print_arg(t, fd, 2, basename, f->name)) return 1; |
1394 | has_argument = 1; |
47299663 |
1395 | } |
3d9b9b0c |
1396 | if(!has_argument) { |
47299663 |
1397 | print_tabs(2, fd); |
1398 | fprintf(fd, "void"); |
1399 | } |
1400 | fprintf(fd,")\n"); |
71e09db9 |
1401 | fprintf(fd, |
1402 | "#if (!defined(CONFIG_LTT) || !defined(CONFIG_LTT_FACILITY_%s))\n", |
1403 | fac->capname); |
47299663 |
1404 | fprintf(fd, "{\n"); |
1405 | fprintf(fd, "}\n"); |
1406 | fprintf(fd,"#else\n"); |
1407 | fprintf(fd, "{\n"); |
7e97b039 |
1408 | /* Print the function variables */ |
a67cd958 |
1409 | print_tabs(1, fd); |
a3e6ce64 |
1410 | fprintf(fd, "unsigned int index;\n"); |
1411 | print_tabs(1, fd); |
1412 | fprintf(fd, "struct ltt_channel_struct *channel;\n"); |
1413 | print_tabs(1, fd); |
1414 | fprintf(fd, "struct ltt_trace_struct *trace;\n"); |
1415 | print_tabs(1, fd); |
1416 | fprintf(fd, "struct rchan_buf *relayfs_buf;\n"); |
1417 | print_tabs(1, fd); |
1418 | fprintf(fd, "void *buffer = NULL;\n"); |
1419 | print_tabs(1, fd); |
458989d8 |
1420 | fprintf(fd, "size_t real_to_base = 0; /* The buffer is allocated on arch_size alignment */\n"); |
1421 | print_tabs(1, fd); |
1422 | fprintf(fd, "size_t *to_base = &real_to_base;\n"); |
a3e6ce64 |
1423 | print_tabs(1, fd); |
458989d8 |
1424 | fprintf(fd, "size_t real_to = 0;\n"); |
a3e6ce64 |
1425 | print_tabs(1, fd); |
458989d8 |
1426 | fprintf(fd, "size_t *to = &real_to;\n"); |
a3e6ce64 |
1427 | print_tabs(1, fd); |
458989d8 |
1428 | fprintf(fd, "size_t real_len = 0;\n"); |
1429 | print_tabs(1, fd); |
1430 | fprintf(fd, "size_t *len = &real_len;\n"); |
30d72138 |
1431 | print_tabs(1, fd); |
6e27ba88 |
1432 | fprintf(fd, "size_t reserve_size;\n"); |
1433 | print_tabs(1, fd); |
a3e6ce64 |
1434 | fprintf(fd, "size_t slot_size;\n"); |
30d72138 |
1435 | print_tabs(1, fd); |
63c831c5 |
1436 | |
ac963fe3 |
1437 | if(event->fields.position > 0) { |
63c831c5 |
1438 | for(unsigned int i=0;i<event->fields.position;i++){ |
1439 | /* Search for at least one child with fixed size. It means |
1440 | * we need local variables.*/ |
1441 | field_t *field = (field_t*)(event->fields.array[i]); |
1442 | type_descriptor_t *type = field->type; |
1443 | has_type_fixed = has_type_local(type); |
1444 | if(has_type_fixed) break; |
1445 | } |
1446 | |
1447 | if(has_type_fixed) { |
8f78c30f |
1448 | fprintf(fd, "size_t align;\n"); |
63c831c5 |
1449 | print_tabs(1, fd); |
1450 | } |
1451 | |
ac963fe3 |
1452 | fprintf(fd, "const void *real_from;\n"); |
1453 | print_tabs(1, fd); |
1454 | fprintf(fd, "const void **from = &real_from;\n"); |
1455 | print_tabs(1, fd); |
1456 | } |
8e290e8b |
1457 | fprintf(fd, "u64 tsc;\n"); |
30d72138 |
1458 | print_tabs(1, fd); |
458989d8 |
1459 | fprintf(fd, "size_t before_hdr_pad, after_hdr_pad, header_size;\n"); |
a3e6ce64 |
1460 | fprintf(fd, "\n"); |
7e97b039 |
1461 | |
a3e6ce64 |
1462 | print_tabs(1, fd); |
1463 | fprintf(fd, "if(ltt_traces.num_active_traces == 0) return;\n"); |
1464 | fprintf(fd, "\n"); |
1465 | |
a67cd958 |
1466 | /* Calculate event variable len + event data alignment offset. |
7e97b039 |
1467 | * Assume that the padding for alignment starts at a void* |
a67cd958 |
1468 | * address. |
1469 | * This excludes the header size and alignment. */ |
1470 | |
a3e6ce64 |
1471 | print_tabs(1, fd); |
1472 | fprintf(fd, "/* For each field, calculate the field size. */\n"); |
1473 | print_tabs(1, fd); |
458989d8 |
1474 | fprintf(fd, "/* size = *to_base + *to + *len */\n"); |
a3e6ce64 |
1475 | print_tabs(1, fd); |
30d72138 |
1476 | fprintf(fd, "/* Assume that the padding for alignment starts at a\n"); |
a3e6ce64 |
1477 | print_tabs(1, fd); |
30d72138 |
1478 | fprintf(fd, " * sizeof(void *) address. */\n"); |
a3e6ce64 |
1479 | fprintf(fd, "\n"); |
a67cd958 |
1480 | |
a3e6ce64 |
1481 | for(unsigned int i=0;i<event->fields.position;i++){ |
2e415130 |
1482 | field_t *field = (field_t*)(event->fields.array[i]); |
a3e6ce64 |
1483 | type_descriptor_t *type = field->type; |
458989d8 |
1484 | /* Set from */ |
1485 | print_tabs(1, fd); |
1486 | switch(type->type) { |
1487 | case SEQUENCE: |
1488 | case UNION: |
1489 | case ARRAY: |
1490 | case STRUCT: |
1491 | case STRING: |
3ace7bc4 |
1492 | fprintf(fd, "*from = lttng_param_%s;\n", field->name); |
458989d8 |
1493 | break; |
1494 | default: |
3ace7bc4 |
1495 | fprintf(fd, "*from = <tng_param_%s;\n", field->name); |
458989d8 |
1496 | break; |
1497 | } |
1498 | |
a3e6ce64 |
1499 | if(print_type_write(type, |
3ace7bc4 |
1500 | fd, 1, basename, field->name, "lttng_param_", 0)) return 1; |
a3e6ce64 |
1501 | fprintf(fd, "\n"); |
a67cd958 |
1502 | } |
6e27ba88 |
1503 | print_tabs(1, fd); |
458989d8 |
1504 | fprintf(fd, "reserve_size = *to_base + *to + *len;\n"); |
47299663 |
1505 | |
7e97b039 |
1506 | /* Take locks : make sure the trace does not vanish while we write on |
1507 | * it. A simple preemption disabling is enough (using rcu traces). */ |
a3e6ce64 |
1508 | print_tabs(1, fd); |
1509 | fprintf(fd, "preempt_disable();\n"); |
1510 | print_tabs(1, fd); |
ac493dbc |
1511 | fprintf(fd, "current->ltt_nesting++;\n"); |
a3e6ce64 |
1512 | |
1513 | /* Get facility index */ |
1514 | |
1515 | if(event->per_tracefile) { |
1516 | print_tabs(1, fd); |
1517 | fprintf(fd, "index = tracefile_index;\n"); |
1518 | } else { |
1519 | print_tabs(1, fd); |
1520 | fprintf(fd, |
1521 | "index = ltt_get_index_from_facility(ltt_facility_%s_%X,\n"\ |
458989d8 |
1522 | "\t\t\t\t\t\tevent_%s_%s);\n", |
1523 | fac->name, fac->checksum, fac->name, event->name); |
a3e6ce64 |
1524 | } |
1525 | fprintf(fd,"\n"); |
1526 | |
7e97b039 |
1527 | |
1528 | /* For each trace */ |
a3e6ce64 |
1529 | print_tabs(1, fd); |
1530 | fprintf(fd, "list_for_each_entry_rcu(trace, <t_traces.head, list) {\n"); |
1531 | print_tabs(2, fd); |
1532 | fprintf(fd, "if(!trace->active) continue;\n\n"); |
1533 | |
1534 | if(event->per_trace) { |
1535 | print_tabs(2, fd); |
1536 | fprintf(fd, "if(dest_trace != trace) continue;\n\n"); |
1537 | } |
1538 | |
1539 | print_tabs(2, fd); |
2e415130 |
1540 | fprintf(fd, "channel = ltt_get_channel_from_index(trace, index);\n"); |
a3e6ce64 |
1541 | print_tabs(2, fd); |
458989d8 |
1542 | fprintf(fd, "relayfs_buf = channel->rchan->buf[smp_processor_id()];\n"); |
a3e6ce64 |
1543 | fprintf(fd, "\n"); |
1544 | |
7e97b039 |
1545 | |
1546 | /* Relay reserve */ |
a3e6ce64 |
1547 | /* If error, increment event lost counter (done by ltt_reserve_slot) and |
1548 | * return */ |
1549 | print_tabs(2, fd); |
1550 | fprintf(fd, "slot_size = 0;\n"); |
1551 | print_tabs(2, fd); |
30d72138 |
1552 | fprintf(fd, "buffer = ltt_reserve_slot(trace, relayfs_buf,\n"); |
1553 | print_tabs(3, fd); |
6e27ba88 |
1554 | fprintf(fd, "reserve_size, &slot_size, &tsc,\n"); |
30d72138 |
1555 | print_tabs(3, fd); |
458989d8 |
1556 | fprintf(fd, "&before_hdr_pad, &after_hdr_pad, &header_size);\n"); |
a3e6ce64 |
1557 | /* If error, return */ |
1558 | print_tabs(2, fd); |
43f7f14f |
1559 | fprintf(fd, "if(!buffer) continue; /* buffer full */\n\n"); |
8f78c30f |
1560 | //print_tabs(2, fd); |
1561 | // for DEBUG only |
1562 | // fprintf(fd, "goto commit; /* DEBUG : never actually write. */\n\n"); |
1563 | print_tabs(2, fd); |
1564 | fprintf(fd, "*to_base = *to = *len = 0;\n"); |
1565 | fprintf(fd, "\n"); |
1566 | |
458989d8 |
1567 | /* Write event header */ |
1568 | print_tabs(2, fd); |
1569 | fprintf(fd, "ltt_write_event_header(trace, channel, buffer,\n"); |
1570 | print_tabs(3, fd); |
1571 | fprintf(fd, "ltt_facility_%s_%X, event_%s_%s,\n", fac->name, fac->checksum, |
1572 | fac->name, event->name); |
1573 | print_tabs(3, fd); |
1574 | fprintf(fd, "reserve_size, before_hdr_pad, tsc);\n"); |
1575 | print_tabs(2, fd); |
1576 | fprintf(fd, "*to_base += before_hdr_pad + after_hdr_pad + header_size;\n"); |
2a5eec7d |
1577 | fprintf(fd, "\n"); |
7e97b039 |
1578 | |
8f78c30f |
1579 | /* write data. */ |
a3e6ce64 |
1580 | |
1581 | for(unsigned int i=0;i<event->fields.position;i++){ |
2e415130 |
1582 | field_t *field = (field_t*)(event->fields.array[i]); |
a3e6ce64 |
1583 | type_descriptor_t *type = field->type; |
8f78c30f |
1584 | |
a3e6ce64 |
1585 | /* Set from */ |
30d72138 |
1586 | print_tabs(2, fd); |
1587 | switch(type->type) { |
1588 | case SEQUENCE: |
1589 | case UNION: |
1590 | case ARRAY: |
1591 | case STRUCT: |
1592 | case STRING: |
3ace7bc4 |
1593 | fprintf(fd, "*from = lttng_param_%s;\n", field->name); |
30d72138 |
1594 | break; |
1595 | default: |
3ace7bc4 |
1596 | fprintf(fd, "*from = <tng_param_%s;\n", field->name); |
30d72138 |
1597 | break; |
1598 | } |
1599 | |
a3e6ce64 |
1600 | |
1601 | if(print_type_write(type, |
3ace7bc4 |
1602 | fd, 2, basename, field->name, "lttng_param_", 0)) return 1; |
a3e6ce64 |
1603 | fprintf(fd, "\n"); |
7e97b039 |
1604 | |
a3e6ce64 |
1605 | /* Don't forget to flush pending memcpy */ |
1606 | print_tabs(2, fd); |
1607 | fprintf(fd, "/* Flush pending memcpy */\n"); |
1608 | print_tabs(2, fd); |
8f78c30f |
1609 | fprintf(fd, "if(*len != 0) {\n"); |
a3e6ce64 |
1610 | print_tabs(3, fd); |
458989d8 |
1611 | fprintf(fd, "memcpy(buffer+*to_base+*to, *from, *len);\n"); |
a3e6ce64 |
1612 | print_tabs(3, fd); |
458989d8 |
1613 | fprintf(fd, "*to += *len;\n"); |
a3e6ce64 |
1614 | //print_tabs(3, fd); |
1615 | //fprintf(fd, "from += len;\n"); |
1616 | print_tabs(3, fd); |
458989d8 |
1617 | fprintf(fd, "*len = 0;\n"); |
a3e6ce64 |
1618 | print_tabs(2, fd); |
1619 | fprintf(fd, "}\n"); |
1620 | fprintf(fd, "\n"); |
1621 | } |
1622 | |
1623 | |
7e97b039 |
1624 | /* commit */ |
8f78c30f |
1625 | // for DEBUG only. |
1626 | //fprintf(fd, "commit:\n"); /* DEBUG! */ |
a3e6ce64 |
1627 | print_tabs(2, fd); |
1628 | fprintf(fd, "ltt_commit_slot(relayfs_buf, buffer, slot_size);\n\n"); |
7e97b039 |
1629 | |
a3e6ce64 |
1630 | print_tabs(1, fd); |
1631 | fprintf(fd, "}\n\n"); |
1632 | |
7e97b039 |
1633 | /* Release locks */ |
a3e6ce64 |
1634 | print_tabs(1, fd); |
ac493dbc |
1635 | fprintf(fd, "current->ltt_nesting--;\n"); |
a3e6ce64 |
1636 | print_tabs(1, fd); |
1637 | fprintf(fd, "preempt_enable_no_resched();\n"); |
2d2d14a7 |
1638 | |
47299663 |
1639 | fprintf(fd, "}\n"); |
71e09db9 |
1640 | fprintf(fd, "#endif //(!defined(CONFIG_LTT) || !defined(CONFIG_LTT_FACILITY_%s))\n\n", |
1641 | fac->capname); |
47299663 |
1642 | return 0; |
1643 | } |
2d2d14a7 |
1644 | |
8a9103df |
1645 | /* print_event_logging_function_user_generic |
bd7b8ca6 |
1646 | * Print the logging function of an event for userspace tracing. This is the |
1647 | * core of genevent */ |
8a9103df |
1648 | int print_event_logging_function_user_generic(char *basename, facility_t *fac, |
bd7b8ca6 |
1649 | event_t *event, FILE *fd) |
1650 | { |
4a6829e2 |
1651 | char *attrib; |
8a9103df |
1652 | |
1653 | fprintf(fd, "#ifndef LTT_TRACE_FAST\n"); |
1654 | |
4a6829e2 |
1655 | if(event->no_instrument_function) { |
1656 | attrib = "__attribute__((no_instrument_function)) "; |
1657 | } else { |
1658 | attrib = ""; |
1659 | } |
1e08067e |
1660 | if(event->param_buffer) { |
4a6829e2 |
1661 | fprintf(fd, "static inline %sint trace_%s_param_buffer(\n", attrib, basename); |
1e08067e |
1662 | } else { |
4a6829e2 |
1663 | fprintf(fd, "static inline %sint trace_%s(\n",attrib, basename); |
1e08067e |
1664 | } |
bd7b8ca6 |
1665 | int has_argument = 0; |
1666 | int has_type_fixed = 0; |
1667 | |
1e08067e |
1668 | if(event->param_buffer) { |
bd7b8ca6 |
1669 | if(has_argument) { |
1e08067e |
1670 | fprintf(fd, ","); |
1671 | fprintf(fd, "\n"); |
bd7b8ca6 |
1672 | } |
1e08067e |
1673 | print_tabs(2, fd); |
1674 | fprintf(fd, "void *buffer"); |
bd7b8ca6 |
1675 | has_argument = 1; |
1e08067e |
1676 | fprintf(fd, ","); |
1677 | fprintf(fd, "\n"); |
1678 | print_tabs(2, fd); |
1679 | fprintf(fd, "size_t reserve_size"); |
1680 | } else { |
1681 | for(unsigned int j = 0; j < event->fields.position; j++) { |
1682 | /* For each field, print the function argument */ |
1683 | field_t *f = (field_t*)event->fields.array[j]; |
1684 | type_descriptor_t *t = f->type; |
1685 | if(has_argument) { |
1686 | fprintf(fd, ","); |
1687 | fprintf(fd, "\n"); |
1688 | } |
1689 | if(print_arg(t, fd, 2, basename, f->name)) return 1; |
1690 | has_argument = 1; |
1691 | } |
bd7b8ca6 |
1692 | } |
1693 | if(!has_argument) { |
1694 | print_tabs(2, fd); |
1695 | fprintf(fd, "void"); |
1696 | } |
1697 | fprintf(fd,")\n"); |
1698 | fprintf(fd, |
1699 | "#ifndef LTT_TRACE\n"); |
1700 | fprintf(fd, "{\n"); |
1701 | fprintf(fd, "}\n"); |
1702 | fprintf(fd,"#else\n"); |
1703 | fprintf(fd, "{\n"); |
1704 | /* Print the function variables */ |
1705 | print_tabs(1, fd); |
1e08067e |
1706 | fprintf(fd, "int ret = 0;\n"); |
1707 | if(event->param_buffer) { |
1708 | print_tabs(1, fd); |
1709 | fprintf(fd, "reserve_size = ltt_align(reserve_size, sizeof(void *));\n"); |
1710 | print_tabs(1, fd); |
1711 | fprintf(fd, "{\n"); |
1712 | goto do_syscall; |
1713 | } |
1714 | print_tabs(1, fd); |
bd7b8ca6 |
1715 | fprintf(fd, "void *buffer = NULL;\n"); |
1716 | print_tabs(1, fd); |
1717 | fprintf(fd, "size_t real_to_base = 0; /* The buffer is allocated on arch_size alignment */\n"); |
1718 | print_tabs(1, fd); |
1719 | fprintf(fd, "size_t *to_base = &real_to_base;\n"); |
1720 | print_tabs(1, fd); |
1721 | fprintf(fd, "size_t real_to = 0;\n"); |
1722 | print_tabs(1, fd); |
1723 | fprintf(fd, "size_t *to = &real_to;\n"); |
1724 | print_tabs(1, fd); |
1725 | fprintf(fd, "size_t real_len = 0;\n"); |
1726 | print_tabs(1, fd); |
1727 | fprintf(fd, "size_t *len = &real_len;\n"); |
1728 | print_tabs(1, fd); |
1729 | fprintf(fd, "size_t reserve_size;\n"); |
1730 | print_tabs(1, fd); |
1731 | fprintf(fd, "size_t slot_size;\n"); |
1732 | print_tabs(1, fd); |
bd7b8ca6 |
1733 | |
1734 | if(event->fields.position > 0) { |
1735 | for(unsigned int i=0;i<event->fields.position;i++){ |
1736 | /* Search for at least one child with fixed size. It means |
1737 | * we need local variables.*/ |
1738 | field_t *field = (field_t*)(event->fields.array[i]); |
1739 | type_descriptor_t *type = field->type; |
1740 | has_type_fixed = has_type_local(type); |
1741 | if(has_type_fixed) break; |
1742 | } |
1743 | |
1744 | if(has_type_fixed) { |
1745 | fprintf(fd, "size_t align;\n"); |
1746 | print_tabs(1, fd); |
1747 | } |
1748 | |
1749 | fprintf(fd, "const void *real_from;\n"); |
1750 | print_tabs(1, fd); |
1751 | fprintf(fd, "const void **from = &real_from;\n"); |
1752 | print_tabs(1, fd); |
1753 | } |
1754 | |
1755 | /* Calculate event variable len + event data alignment offset. |
1756 | * Assume that the padding for alignment starts at a void* |
1757 | * address. |
1758 | * This excludes the header size and alignment. */ |
1759 | |
1760 | print_tabs(1, fd); |
1761 | fprintf(fd, "/* For each field, calculate the field size. */\n"); |
1762 | print_tabs(1, fd); |
1763 | fprintf(fd, "/* size = *to_base + *to + *len */\n"); |
1764 | print_tabs(1, fd); |
1765 | fprintf(fd, "/* Assume that the padding for alignment starts at a\n"); |
1766 | print_tabs(1, fd); |
1767 | fprintf(fd, " * sizeof(void *) address. */\n"); |
1768 | fprintf(fd, "\n"); |
1769 | |
1770 | for(unsigned int i=0;i<event->fields.position;i++){ |
1771 | field_t *field = (field_t*)(event->fields.array[i]); |
1772 | type_descriptor_t *type = field->type; |
1773 | /* Set from */ |
1774 | print_tabs(1, fd); |
1775 | switch(type->type) { |
1776 | case SEQUENCE: |
1777 | case UNION: |
1778 | case ARRAY: |
1779 | case STRUCT: |
1780 | case STRING: |
1781 | fprintf(fd, "*from = lttng_param_%s;\n", field->name); |
1782 | break; |
1783 | default: |
1784 | fprintf(fd, "*from = <tng_param_%s;\n", field->name); |
1785 | break; |
1786 | } |
1787 | |
1788 | if(print_type_write(type, |
1789 | fd, 1, basename, field->name, "lttng_param_", 0)) return 1; |
1790 | fprintf(fd, "\n"); |
1791 | } |
1792 | print_tabs(1, fd); |
1793 | fprintf(fd, "reserve_size = *to_base + *to + *len;\n"); |
1794 | |
1795 | print_tabs(1, fd); |
1796 | fprintf(fd, "{\n"); |
1797 | print_tabs(2, fd); |
1798 | fprintf(fd, "char stack_buffer[reserve_size];\n"); |
1799 | print_tabs(2, fd); |
1800 | fprintf(fd, "buffer = stack_buffer;\n"); |
1801 | fprintf(fd, "\n"); |
1802 | |
1803 | |
1804 | //print_tabs(2, fd); |
1805 | // for DEBUG only |
1806 | // fprintf(fd, "goto commit; /* DEBUG : never actually write. */\n\n"); |
1807 | print_tabs(2, fd); |
1808 | fprintf(fd, "*to_base = *to = *len = 0;\n"); |
1809 | fprintf(fd, "\n"); |
1810 | |
1811 | /* write data. */ |
1812 | |
1813 | for(unsigned int i=0;i<event->fields.position;i++){ |
1814 | field_t *field = (field_t*)(event->fields.array[i]); |
1815 | type_descriptor_t *type = field->type; |
1816 | |
1817 | /* Set from */ |
1818 | print_tabs(2, fd); |
1819 | switch(type->type) { |
1820 | case SEQUENCE: |
1821 | case UNION: |
1822 | case ARRAY: |
1823 | case STRUCT: |
1824 | case STRING: |
1825 | fprintf(fd, "*from = lttng_param_%s;\n", field->name); |
1826 | break; |
1827 | default: |
1828 | fprintf(fd, "*from = <tng_param_%s;\n", field->name); |
1829 | break; |
1830 | } |
1831 | |
1832 | |
1833 | if(print_type_write(type, |
1834 | fd, 2, basename, field->name, "lttng_param_", 0)) return 1; |
1835 | fprintf(fd, "\n"); |
1836 | |
1837 | /* Don't forget to flush pending memcpy */ |
1838 | print_tabs(2, fd); |
1839 | fprintf(fd, "/* Flush pending memcpy */\n"); |
1840 | print_tabs(2, fd); |
1841 | fprintf(fd, "if(*len != 0) {\n"); |
1842 | print_tabs(3, fd); |
1843 | fprintf(fd, "memcpy(buffer+*to_base+*to, *from, *len);\n"); |
1844 | print_tabs(3, fd); |
1845 | fprintf(fd, "*to += *len;\n"); |
1846 | //print_tabs(3, fd); |
1847 | //fprintf(fd, "from += len;\n"); |
1848 | print_tabs(3, fd); |
1849 | fprintf(fd, "*len = 0;\n"); |
1850 | print_tabs(2, fd); |
1851 | fprintf(fd, "}\n"); |
1852 | fprintf(fd, "\n"); |
1853 | } |
1854 | |
1e08067e |
1855 | do_syscall: |
bd7b8ca6 |
1856 | print_tabs(2, fd); |
1e08067e |
1857 | fprintf(fd, "ret = ltt_trace_generic(ltt_facility_%s_%X, event_%s_%s, buffer, reserve_size, LTT_BLOCKING);\n", fac->name, fac->checksum, fac->name, event->name); |
bd7b8ca6 |
1858 | |
1859 | print_tabs(1, fd); |
1860 | fprintf(fd, "}\n\n"); |
1861 | |
1862 | print_tabs(1, fd); |
1863 | fprintf(fd, "return ret;\n\n"); |
1864 | |
1865 | fprintf(fd, "}\n"); |
1866 | fprintf(fd, |
1867 | "#endif //LTT_TRACE\n"); |
8a9103df |
1868 | fprintf(fd, "#endif //!LTT_TRACE_FAST\n\n"); |
bd7b8ca6 |
1869 | |
1870 | return 0; |
1871 | } |
2d2d14a7 |
1872 | |
8a9103df |
1873 | /* print_event_logging_function_user_fast |
1874 | * Print the logging function of an event for userspace tracing. This is the |
1875 | * core of genevent */ |
1876 | int print_event_logging_function_user_fast(char *basename, facility_t *fac, |
1877 | event_t *event, FILE *fd) |
1878 | { |
1879 | char *attrib; |
1880 | |
1881 | fprintf(fd, "#ifdef LTT_TRACE_FAST\n"); |
1882 | |
1883 | if(event->no_instrument_function) { |
1884 | attrib = "__attribute__((no_instrument_function)) "; |
1885 | } else { |
1886 | attrib = ""; |
1887 | } |
1888 | fprintf(fd, "static inline %sint trace_%s(\n",attrib, basename); |
1889 | |
1890 | int has_argument = 0; |
1891 | int has_type_fixed = 0; |
1892 | |
1893 | for(unsigned int j = 0; j < event->fields.position; j++) { |
1894 | /* For each field, print the function argument */ |
1895 | field_t *f = (field_t*)event->fields.array[j]; |
1896 | type_descriptor_t *t = f->type; |
1897 | if(has_argument) { |
1898 | fprintf(fd, ","); |
1899 | fprintf(fd, "\n"); |
1900 | } |
1901 | if(print_arg(t, fd, 2, basename, f->name)) return 1; |
1902 | has_argument = 1; |
1903 | } |
1904 | if(!has_argument) { |
1905 | print_tabs(2, fd); |
1906 | fprintf(fd, "void"); |
1907 | } |
1908 | fprintf(fd,")\n"); |
1909 | fprintf(fd, |
1910 | "#ifndef LTT_TRACE\n"); |
1911 | fprintf(fd, "{\n"); |
1912 | fprintf(fd, "}\n"); |
1913 | fprintf(fd,"#else\n"); |
1914 | fprintf(fd, "{\n"); |
1915 | /* Print the function variables */ |
1916 | print_tabs(1, fd); |
1917 | fprintf(fd, "unsigned int index;\n"); |
1918 | print_tabs(1, fd); |
1919 | fprintf(fd, "struct ltt_trace_info *trace = thread_trace_info;\n"); |
1920 | print_tabs(1, fd); |
1921 | fprintf(fd, "struct ltt_buf *ltt_buf;\n"); |
1922 | print_tabs(1, fd); |
1923 | fprintf(fd, "void *buffer = NULL;\n"); |
1924 | print_tabs(1, fd); |
1925 | fprintf(fd, "size_t real_to_base = 0; /* The buffer is allocated on arch_size alignment */\n"); |
1926 | print_tabs(1, fd); |
1927 | fprintf(fd, "size_t *to_base = &real_to_base;\n"); |
1928 | print_tabs(1, fd); |
1929 | fprintf(fd, "size_t real_to = 0;\n"); |
1930 | print_tabs(1, fd); |
1931 | fprintf(fd, "size_t *to = &real_to;\n"); |
1932 | print_tabs(1, fd); |
1933 | fprintf(fd, "size_t real_len = 0;\n"); |
1934 | print_tabs(1, fd); |
1935 | fprintf(fd, "size_t *len = &real_len;\n"); |
1936 | print_tabs(1, fd); |
1937 | fprintf(fd, "size_t reserve_size;\n"); |
1938 | print_tabs(1, fd); |
1939 | fprintf(fd, "size_t slot_size;\n"); |
1940 | print_tabs(1, fd); |
1941 | |
1942 | if(event->fields.position > 0) { |
1943 | for(unsigned int i=0;i<event->fields.position;i++){ |
1944 | /* Search for at least one child with fixed size. It means |
1945 | * we need local variables.*/ |
1946 | field_t *field = (field_t*)(event->fields.array[i]); |
1947 | type_descriptor_t *type = field->type; |
1948 | has_type_fixed = has_type_local(type); |
1949 | if(has_type_fixed) break; |
1950 | } |
1951 | |
1952 | if(has_type_fixed) { |
1953 | fprintf(fd, "size_t align;\n"); |
1954 | print_tabs(1, fd); |
1955 | } |
1956 | |
1957 | fprintf(fd, "const void *real_from;\n"); |
1958 | print_tabs(1, fd); |
1959 | fprintf(fd, "const void **from = &real_from;\n"); |
1960 | print_tabs(1, fd); |
1961 | } |
1962 | fprintf(fd, "uint64_t tsc;\n"); |
1963 | print_tabs(1, fd); |
1964 | fprintf(fd, "size_t before_hdr_pad, after_hdr_pad, header_size;\n"); |
1965 | fprintf(fd, "\n"); |
1966 | |
1967 | print_tabs(1, fd); |
ba017bc3 |
1968 | fprintf(fd, "if(!trace) {\n"); |
1969 | print_tabs(2, fd); |
1970 | fprintf(fd, "ltt_thread_init();\n"); |
1971 | print_tabs(2, fd); |
1972 | fprintf(fd, "trace = thread_trace_info;\n"); |
1973 | print_tabs(1, fd); |
1974 | fprintf(fd, "}\n\n"); |
8a9103df |
1975 | fprintf(fd, "\n"); |
1976 | |
1977 | /* Calculate event variable len + event data alignment offset. |
1978 | * Assume that the padding for alignment starts at a void* |
1979 | * address. |
1980 | * This excludes the header size and alignment. */ |
1981 | |
1982 | print_tabs(1, fd); |
1983 | fprintf(fd, "/* For each field, calculate the field size. */\n"); |
1984 | print_tabs(1, fd); |
1985 | fprintf(fd, "/* size = *to_base + *to + *len */\n"); |
1986 | print_tabs(1, fd); |
1987 | fprintf(fd, "/* Assume that the padding for alignment starts at a\n"); |
1988 | print_tabs(1, fd); |
1989 | fprintf(fd, " * sizeof(void *) address. */\n"); |
1990 | fprintf(fd, "\n"); |
1991 | |
1992 | for(unsigned int i=0;i<event->fields.position;i++){ |
1993 | field_t *field = (field_t*)(event->fields.array[i]); |
1994 | type_descriptor_t *type = field->type; |
1995 | /* Set from */ |
1996 | print_tabs(1, fd); |
1997 | switch(type->type) { |
1998 | case SEQUENCE: |
1999 | case UNION: |
2000 | case ARRAY: |
2001 | case STRUCT: |
2002 | case STRING: |
2003 | fprintf(fd, "*from = lttng_param_%s;\n", field->name); |
2004 | break; |
2005 | default: |
2006 | fprintf(fd, "*from = <tng_param_%s;\n", field->name); |
2007 | break; |
2008 | } |
2009 | |
2010 | if(print_type_write(type, |
2011 | fd, 1, basename, field->name, "lttng_param_", 0)) return 1; |
2012 | fprintf(fd, "\n"); |
2013 | } |
2014 | print_tabs(1, fd); |
2015 | fprintf(fd, "reserve_size = *to_base + *to + *len;\n"); |
2016 | |
2017 | print_tabs(1, fd); |
2018 | fprintf(fd, "trace->nesting++;\n"); |
2019 | |
2020 | /* Get facility index */ |
2021 | |
2022 | print_tabs(1, fd); |
2023 | fprintf(fd, |
2024 | "index = ltt_get_index_from_facility(ltt_facility_%s_%X,\n"\ |
2025 | "\t\t\t\t\t\tevent_%s_%s);\n", |
2026 | fac->name, fac->checksum, fac->name, event->name); |
2027 | fprintf(fd,"\n"); |
2028 | |
2029 | |
2030 | print_tabs(1, fd); |
2031 | fprintf(fd, "{\n"); |
2032 | |
2033 | if(event->per_trace) { |
2034 | print_tabs(2, fd); |
2035 | fprintf(fd, "if(dest_trace != trace) continue;\n\n"); |
2036 | } |
2037 | |
2038 | print_tabs(2, fd); |
2039 | fprintf(fd, "ltt_buf = ltt_get_channel_from_index(trace, index);\n"); |
2040 | print_tabs(2, fd); |
2041 | |
2042 | |
2043 | /* Relay reserve */ |
2044 | /* If error, increment event lost counter (done by ltt_reserve_slot) and |
2045 | * return */ |
2046 | print_tabs(2, fd); |
2047 | fprintf(fd, "slot_size = 0;\n"); |
2048 | print_tabs(2, fd); |
2049 | fprintf(fd, "buffer = ltt_reserve_slot(trace, ltt_buf,\n"); |
2050 | print_tabs(3, fd); |
2051 | fprintf(fd, "reserve_size, &slot_size, &tsc,\n"); |
2052 | print_tabs(3, fd); |
2053 | fprintf(fd, "&before_hdr_pad, &after_hdr_pad, &header_size);\n"); |
2054 | /* If error, return */ |
2055 | print_tabs(2, fd); |
2056 | fprintf(fd, "if(!buffer) goto end; /* buffer full */\n\n"); |
2057 | //print_tabs(2, fd); |
2058 | // for DEBUG only |
2059 | // fprintf(fd, "goto commit; /* DEBUG : never actually write. */\n\n"); |
2060 | print_tabs(2, fd); |
2061 | fprintf(fd, "*to_base = *to = *len = 0;\n"); |
2062 | fprintf(fd, "\n"); |
2063 | |
2064 | /* Write event header */ |
2065 | print_tabs(2, fd); |
2066 | fprintf(fd, "ltt_write_event_header(trace, ltt_buf, buffer,\n"); |
2067 | print_tabs(3, fd); |
2068 | fprintf(fd, "ltt_facility_%s_%X, event_%s_%s,\n", fac->name, fac->checksum, |
2069 | fac->name, event->name); |
2070 | print_tabs(3, fd); |
2071 | fprintf(fd, "reserve_size, before_hdr_pad, tsc);\n"); |
2072 | print_tabs(2, fd); |
2073 | fprintf(fd, "*to_base += before_hdr_pad + after_hdr_pad + header_size;\n"); |
2074 | fprintf(fd, "\n"); |
2075 | |
2076 | /* write data. */ |
2077 | |
2078 | for(unsigned int i=0;i<event->fields.position;i++){ |
2079 | field_t *field = (field_t*)(event->fields.array[i]); |
2080 | type_descriptor_t *type = field->type; |
2081 | |
2082 | /* Set from */ |
2083 | print_tabs(2, fd); |
2084 | switch(type->type) { |
2085 | case SEQUENCE: |
2086 | case UNION: |
2087 | case ARRAY: |
2088 | case STRUCT: |
2089 | case STRING: |
2090 | fprintf(fd, "*from = lttng_param_%s;\n", field->name); |
2091 | break; |
2092 | default: |
2093 | fprintf(fd, "*from = <tng_param_%s;\n", field->name); |
2094 | break; |
2095 | } |
2096 | |
2097 | |
2098 | if(print_type_write(type, |
2099 | fd, 2, basename, field->name, "lttng_param_", 0)) return 1; |
2100 | fprintf(fd, "\n"); |
2101 | |
2102 | /* Don't forget to flush pending memcpy */ |
2103 | print_tabs(2, fd); |
2104 | fprintf(fd, "/* Flush pending memcpy */\n"); |
2105 | print_tabs(2, fd); |
2106 | fprintf(fd, "if(*len != 0) {\n"); |
2107 | print_tabs(3, fd); |
2108 | fprintf(fd, "memcpy(buffer+*to_base+*to, *from, *len);\n"); |
2109 | print_tabs(3, fd); |
2110 | fprintf(fd, "*to += *len;\n"); |
2111 | //print_tabs(3, fd); |
2112 | //fprintf(fd, "from += len;\n"); |
2113 | print_tabs(3, fd); |
2114 | fprintf(fd, "*len = 0;\n"); |
2115 | print_tabs(2, fd); |
2116 | fprintf(fd, "}\n"); |
2117 | fprintf(fd, "\n"); |
2118 | } |
2119 | |
2120 | |
2121 | /* commit */ |
2122 | // for DEBUG only. |
2123 | //fprintf(fd, "commit:\n"); /* DEBUG! */ |
2124 | print_tabs(2, fd); |
2125 | fprintf(fd, "ltt_commit_slot(ltt_buf, buffer, slot_size);\n\n"); |
2126 | |
2127 | fprintf(fd, "}\n\n"); |
2128 | |
2129 | fprintf(fd, "end:\n"); |
2130 | /* Release locks */ |
2131 | print_tabs(1, fd); |
2132 | fprintf(fd, "trace->nesting--;\n"); |
2133 | |
2134 | |
2135 | fprintf(fd, "}\n"); |
2136 | fprintf(fd, |
2137 | "#endif //LTT_TRACE\n"); |
2138 | fprintf(fd, "#endif //LTT_TRACE_FAST\n"); |
2139 | |
2140 | return 0; |
2141 | } |
2142 | |
2143 | |
2144 | |
2145 | |
2146 | |
2147 | |
2d2d14a7 |
2148 | /* ltt-facility-name.h : main logging header. |
2149 | * log_header */ |
2150 | |
2151 | void print_log_header_head(facility_t *fac, FILE *fd) |
2152 | { |
2153 | fprintf(fd, "#ifndef _LTT_FACILITY_%s_H_\n", fac->capname); |
2154 | fprintf(fd, "#define _LTT_FACILITY_%s_H_\n\n", fac->capname); |
3d9b9b0c |
2155 | fprintf(fd, "#include <linux/types.h>\n"); |
ffaf5031 |
2156 | if(!fac->arch) |
2157 | fprintf(fd, "#include <linux/ltt/ltt-facility-id-%s.h>\n", fac->name); |
2158 | else |
2159 | fprintf(fd, "#include <asm/ltt/ltt-facility-id-%s_%s.h>\n", |
2160 | fac->name, |
2161 | fac->arch); |
3d9b9b0c |
2162 | fprintf(fd, "#include <linux/ltt-core.h>\n"); |
47299663 |
2163 | fprintf(fd, "\n"); |
2d2d14a7 |
2164 | } |
2165 | |
bd7b8ca6 |
2166 | /* ltt-facility-name.h : main logging header. |
2167 | * log_header */ |
2168 | |
2169 | void print_log_header_head_user(facility_t *fac, FILE *fd) |
2170 | { |
2171 | fprintf(fd, "#ifndef _LTT_FACILITY_%s_H_\n", fac->capname); |
2172 | fprintf(fd, "#define _LTT_FACILITY_%s_H_\n\n", fac->capname); |
2173 | fprintf(fd, "#include <sys/types.h>\n"); |
2174 | if(!fac->arch) |
2175 | fprintf(fd, "#include <ltt/ltt-facility-id-%s.h>\n", fac->name); |
2176 | else |
2177 | fprintf(fd, "#include <asm/ltt/ltt-facility-id-%s_%s.h>\n", |
2178 | fac->name, |
2179 | fac->arch); |
f389e596 |
2180 | fprintf(fd, "#include <ltt/ltt-usertrace.h>\n"); |
bd7b8ca6 |
2181 | fprintf(fd, "\n"); |
2182 | } |
2d2d14a7 |
2183 | |
2184 | |
2d2d14a7 |
2185 | int print_log_header_types(facility_t *fac, FILE *fd) |
2186 | { |
2187 | sequence_t *types = &fac->named_types.values; |
2188 | fprintf(fd, "/* Named types */\n"); |
2189 | fprintf(fd, "\n"); |
2190 | |
2191 | for(unsigned int i = 0; i < types->position; i++) { |
2192 | /* For each named type, print the definition */ |
458989d8 |
2193 | if(print_type_declaration(types->array[i], fd, |
2194 | 0, "", "")) return 1; |
34c1d1b5 |
2195 | /* Print also the align function */ |
458989d8 |
2196 | if(print_type_alignment_fct(types->array[i], fd, |
2197 | 0, "", "")) return 1; |
34c1d1b5 |
2198 | /* Print also the write function */ |
458989d8 |
2199 | if(print_type_write_fct(types->array[i], fd, |
2200 | 0, "", "")) return 1; |
2d2d14a7 |
2201 | } |
2202 | return 0; |
2203 | } |
2204 | |
2205 | int print_log_header_events(facility_t *fac, FILE *fd) |
2206 | { |
47299663 |
2207 | sequence_t *events = &fac->events; |
2208 | char basename[PATH_MAX]; |
2209 | unsigned int facname_len; |
2210 | |
2211 | strncpy(basename, fac->name, PATH_MAX); |
2212 | facname_len = strlen(basename); |
2213 | strncat(basename, "_", PATH_MAX-facname_len); |
2214 | facname_len = strlen(basename); |
2215 | |
2216 | for(unsigned int i = 0; i < events->position; i++) { |
2217 | event_t *event = (event_t*)events->array[i]; |
2218 | strncpy(&basename[facname_len], event->name, PATH_MAX-facname_len); |
2219 | |
2220 | /* For each event, print structure, and then logging function */ |
2221 | fprintf(fd, "/* Event %s structures */\n", |
2222 | event->name); |
2223 | for(unsigned int j = 0; j < event->fields.position; j++) { |
2224 | /* For each unnamed type, print the definition */ |
2225 | field_t *f = (field_t*)event->fields.array[j]; |
2226 | type_descriptor_t *t = f->type; |
34c1d1b5 |
2227 | if(t->type_name == NULL) { |
47299663 |
2228 | if((print_type_declaration(t, fd, 0, basename, f->name))) return 1; |
34c1d1b5 |
2229 | /* Print also the align function */ |
2230 | if((print_type_alignment_fct(t, fd, 0, basename, f->name))) return 1; |
2231 | /* Print also the write function */ |
2232 | if((print_type_write_fct(t, fd, 0, basename, f->name))) return 1; |
2233 | } |
47299663 |
2234 | } |
34c1d1b5 |
2235 | |
47299663 |
2236 | fprintf(fd, "\n"); |
2d2d14a7 |
2237 | |
47299663 |
2238 | fprintf(fd, "/* Event %s logging function */\n", |
2239 | event->name); |
bd7b8ca6 |
2240 | |
2241 | if(!fac->user) { |
2242 | if(print_event_logging_function(basename, fac, event, fd)) return 1; |
2243 | } else { |
8a9103df |
2244 | if(print_event_logging_function_user_generic(basename, fac, event, fd)) |
2245 | return 1; |
2246 | if(print_event_logging_function_user_fast(basename, fac, event, fd)) |
2247 | return 1; |
bd7b8ca6 |
2248 | } |
47299663 |
2249 | |
2250 | fprintf(fd, "\n"); |
2251 | } |
2252 | |
2d2d14a7 |
2253 | return 0; |
2254 | } |
2255 | |
2256 | |
2257 | void print_log_header_tail(facility_t *fac, FILE *fd) |
2258 | { |
2259 | fprintf(fd, "#endif //_LTT_FACILITY_%s_H_\n",fac->capname); |
2260 | } |
bd7b8ca6 |
2261 | |
2262 | void print_log_header_tail_user(facility_t *fac, FILE *fd) |
2263 | { |
2264 | fprintf(fd, "#endif //_LTT_FACILITY_%s_H_\n",fac->capname); |
2265 | } |
2d2d14a7 |
2266 | |
2267 | int print_log_header(facility_t *fac) |
2268 | { |
2269 | char filename[PATH_MAX]; |
2270 | unsigned int filename_size = 0; |
2271 | FILE *fd; |
2272 | dprintf("%s\n", fac->name); |
2273 | |
2274 | strcpy(filename, "ltt-facility-"); |
2275 | filename_size = strlen(filename); |
2276 | |
2277 | strncat(filename, fac->name, PATH_MAX - filename_size); |
2278 | filename_size = strlen(filename); |
2279 | |
ffaf5031 |
2280 | if(fac->arch) { |
2281 | strncat(filename, "_", PATH_MAX - filename_size); |
2282 | filename_size = strlen(filename); |
2283 | |
2284 | strncat(filename, fac->arch, PATH_MAX - filename_size); |
2285 | filename_size = strlen(filename); |
2286 | } |
2287 | |
2d2d14a7 |
2288 | strncat(filename, ".h", PATH_MAX - filename_size); |
2289 | filename_size = strlen(filename); |
2290 | |
2291 | |
2292 | fd = fopen(filename, "w"); |
2293 | if(fd == NULL) { |
2294 | printf("Error opening file %s for writing : %s\n", |
2295 | filename, strerror(errno)); |
2296 | return errno; |
2297 | } |
2298 | |
2299 | /* Print file head */ |
bd7b8ca6 |
2300 | if(!fac->user) |
2301 | print_log_header_head(fac, fd); |
2302 | else |
2303 | print_log_header_head_user(fac, fd); |
2d2d14a7 |
2304 | |
2305 | /* print named types in declaration order */ |
2306 | if(print_log_header_types(fac, fd)) return 1; |
2307 | |
2308 | /* Print events */ |
2309 | if(print_log_header_events(fac, fd)) return 1; |
2310 | |
2311 | /* Print file tail */ |
bd7b8ca6 |
2312 | if(!fac->user) |
2313 | print_log_header_tail(fac, fd); |
2314 | else |
2315 | print_log_header_tail_user(fac, fd); |
2316 | |
2d2d14a7 |
2317 | |
2318 | |
2319 | fclose(fd); |
2320 | |
2321 | return 0; |
2322 | } |
2323 | |
2324 | |
2325 | /* ltt-facility-id-name.h : facility id. |
2326 | * log_id_header */ |
2327 | int print_id_header(facility_t *fac) |
2328 | { |
2329 | char filename[PATH_MAX]; |
2330 | unsigned int filename_size = 0; |
2331 | FILE *fd; |
71e09db9 |
2332 | char basename[PATH_MAX]; |
2333 | char basename_len = 0; |
2334 | |
2d2d14a7 |
2335 | dprintf("%s\n", fac->name); |
2336 | |
2337 | strcpy(filename, "ltt-facility-id-"); |
2338 | filename_size = strlen(filename); |
2339 | |
2340 | strncat(filename, fac->name, PATH_MAX - filename_size); |
2341 | filename_size = strlen(filename); |
2342 | |
ffaf5031 |
2343 | if(fac->arch) { |
2344 | strncat(filename, "_", PATH_MAX - filename_size); |
2345 | filename_size = strlen(filename); |
2346 | |
2347 | strncat(filename, fac->arch, PATH_MAX - filename_size); |
2348 | filename_size = strlen(filename); |
2349 | } |
2350 | |
2d2d14a7 |
2351 | strncat(filename, ".h", PATH_MAX - filename_size); |
2352 | filename_size = strlen(filename); |
2353 | |
2354 | |
2355 | fd = fopen(filename, "w"); |
2356 | if(fd == NULL) { |
2357 | printf("Error opening file %s for writing : %s\n", |
2358 | filename, strerror(errno)); |
2359 | return errno; |
2360 | } |
2361 | |
bd7b8ca6 |
2362 | if(!fac->user) { |
2363 | fprintf(fd, "#ifndef _LTT_FACILITY_ID_%s_H_\n",fac->capname); |
2364 | fprintf(fd, "#define _LTT_FACILITY_ID_%s_H_\n\n",fac->capname); |
2365 | fprintf(fd, "#ifdef CONFIG_LTT\n"); |
71e09db9 |
2366 | |
bd7b8ca6 |
2367 | fprintf(fd,"#include <linux/ltt-facilities.h>\n\n"); |
71e09db9 |
2368 | |
bd7b8ca6 |
2369 | fprintf(fd,"/**** facility handle ****/\n\n"); |
2370 | fprintf(fd,"extern ltt_facility_t ltt_facility_%s_%X;\n", |
2371 | fac->name, fac->checksum); |
2372 | fprintf(fd,"extern ltt_facility_t ltt_facility_%s;\n\n\n",fac->name); |
71e09db9 |
2373 | |
bd7b8ca6 |
2374 | strncpy(basename, fac->name, PATH_MAX); |
2375 | basename_len = strlen(basename); |
2376 | strncat(basename, "_", PATH_MAX - basename_len); |
2377 | basename_len++; |
2378 | |
2379 | fprintf(fd,"/**** event index ****/\n\n"); |
2380 | fprintf(fd,"enum %s_event {\n",fac->name); |
2381 | |
2382 | for(unsigned int i = 0; i < fac->events.position; i++) { |
2383 | event_t *event = (event_t*)fac->events.array[i]; |
2384 | strncpy(basename+basename_len, event->name, PATH_MAX-basename_len); |
2385 | print_tabs(1, fd); |
2386 | fprintf(fd, "event_%s,\n", basename); |
2387 | } |
71e09db9 |
2388 | print_tabs(1, fd); |
bd7b8ca6 |
2389 | fprintf(fd, "facility_%s_num_events\n", fac->name); |
2390 | fprintf(fd, "};\n"); |
2391 | fprintf(fd, "\n"); |
71e09db9 |
2392 | |
2393 | |
bd7b8ca6 |
2394 | fprintf(fd, "#endif //CONFIG_LTT\n"); |
2395 | fprintf(fd, "#endif //_LTT_FACILITY_ID_%s_H_\n",fac->capname); |
2396 | } else { |
2397 | fprintf(fd, "#ifndef _LTT_FACILITY_ID_%s_H_\n",fac->capname); |
2398 | fprintf(fd, "#define _LTT_FACILITY_ID_%s_H_\n\n",fac->capname); |
2399 | fprintf(fd, "#ifdef LTT_TRACE\n"); |
2400 | |
f389e596 |
2401 | fprintf(fd,"#include <ltt/ltt-usertrace.h>\n\n"); |
bd7b8ca6 |
2402 | |
2403 | fprintf(fd,"/**** facility handle ****/\n\n"); |
2404 | fprintf(fd,"extern ltt_facility_t ltt_facility_%s_%X;\n", |
2405 | fac->name, fac->checksum); |
2406 | fprintf(fd,"extern ltt_facility_t ltt_facility_%s;\n\n\n",fac->name); |
2407 | |
2408 | strncpy(basename, fac->name, PATH_MAX); |
2409 | basename_len = strlen(basename); |
2410 | strncat(basename, "_", PATH_MAX - basename_len); |
2411 | basename_len++; |
2412 | |
2413 | fprintf(fd,"/**** event index ****/\n\n"); |
2414 | fprintf(fd,"enum %s_event {\n",fac->name); |
2415 | |
2416 | for(unsigned int i = 0; i < fac->events.position; i++) { |
2417 | event_t *event = (event_t*)fac->events.array[i]; |
2418 | strncpy(basename+basename_len, event->name, PATH_MAX-basename_len); |
2419 | print_tabs(1, fd); |
2420 | fprintf(fd, "event_%s,\n", basename); |
2421 | } |
2422 | print_tabs(1, fd); |
2423 | fprintf(fd, "facility_%s_num_events\n", fac->name); |
2424 | fprintf(fd, "};\n"); |
2425 | fprintf(fd, "\n"); |
2426 | |
2427 | |
2428 | fprintf(fd, "#endif //LTT_TRACE\n"); |
2429 | fprintf(fd, "#endif //_LTT_FACILITY_ID_%s_H_\n",fac->capname); |
2430 | } |
71e09db9 |
2431 | |
2432 | |
2d2d14a7 |
2433 | fclose(fd); |
2434 | |
2435 | return 0; |
2436 | } |
2437 | |
2438 | |
2439 | /* ltt-facility-loader-name.h : facility specific loader info. |
2440 | * loader_header */ |
2441 | int print_loader_header(facility_t *fac) |
2442 | { |
2443 | char filename[PATH_MAX]; |
2444 | unsigned int filename_size = 0; |
2445 | FILE *fd; |
2446 | dprintf("%s\n", fac->name); |
2447 | |
2448 | strcpy(filename, "ltt-facility-loader-"); |
2449 | filename_size = strlen(filename); |
2450 | |
2451 | strncat(filename, fac->name, PATH_MAX - filename_size); |
2452 | filename_size = strlen(filename); |
2453 | |
ffaf5031 |
2454 | if(fac->arch) { |
2455 | strncat(filename, "_", PATH_MAX - filename_size); |
2456 | filename_size = strlen(filename); |
2457 | |
2458 | strncat(filename, fac->arch, PATH_MAX - filename_size); |
2459 | filename_size = strlen(filename); |
2460 | } |
2461 | |
2d2d14a7 |
2462 | strncat(filename, ".h", PATH_MAX - filename_size); |
2463 | filename_size = strlen(filename); |
2464 | |
2465 | |
2466 | fd = fopen(filename, "w"); |
2467 | if(fd == NULL) { |
2468 | printf("Error opening file %s for writing : %s\n", |
2469 | filename, strerror(errno)); |
2470 | return errno; |
2471 | } |
2472 | |
71e09db9 |
2473 | fprintf(fd, "#ifndef _LTT_FACILITY_LOADER_%s_H_\n", fac->capname); |
2474 | fprintf(fd, "#define _LTT_FACILITY_LOADER_%s_H_\n\n", fac->capname); |
2475 | fprintf(fd, "#ifdef CONFIG_LTT\n\n"); |
2476 | fprintf(fd,"#include <linux/ltt-facilities.h>\n"); |
ffaf5031 |
2477 | if(!fac->arch) |
2478 | fprintf(fd,"#include <linux/ltt/ltt-facility-id-%s.h>\n\n", |
2479 | fac->name); |
2480 | else |
2481 | fprintf(fd,"#include <asm/ltt/ltt-facility-id-%s_%s.h>\n\n", |
2482 | fac->name, |
2483 | fac->arch); |
71e09db9 |
2484 | fprintf(fd,"ltt_facility_t\tltt_facility_%s;\n", fac->name); |
2485 | fprintf(fd,"ltt_facility_t\tltt_facility_%s_%X;\n\n", |
2486 | fac->name, fac->checksum); |
2487 | |
0043cb00 |
2488 | fprintf(fd,"#define LTT_FACILITY_SYMBOL\t\tltt_facility_%s\n", |
71e09db9 |
2489 | fac->name); |
0043cb00 |
2490 | fprintf(fd,"#define LTT_FACILITY_CHECKSUM_SYMBOL\tltt_facility_%s_%X\n", |
71e09db9 |
2491 | fac->name, fac->checksum); |
0043cb00 |
2492 | fprintf(fd,"#define LTT_FACILITY_CHECKSUM\t\t0x%X\n", fac->checksum); |
2493 | fprintf(fd,"#define LTT_FACILITY_NAME\t\t\"%s\"\n", fac->name); |
2494 | fprintf(fd,"#define LTT_FACILITY_NUM_EVENTS\tfacility_%s_num_events\n\n", |
71e09db9 |
2495 | fac->name); |
2496 | fprintf(fd, "#endif //CONFIG_LTT\n\n"); |
2497 | fprintf(fd, "#endif //_LTT_FACILITY_LOADER_%s_H_\n", fac->capname); |
2498 | |
2d2d14a7 |
2499 | fclose(fd); |
2500 | |
2501 | return 0; |
2502 | } |
2503 | |
bd7b8ca6 |
2504 | int print_loader_header_user(facility_t *fac) |
2505 | { |
2506 | char filename[PATH_MAX]; |
2507 | unsigned int filename_size = 0; |
2508 | FILE *fd; |
2509 | dprintf("%s\n", fac->name); |
2510 | |
2511 | strcpy(filename, "ltt-facility-loader-"); |
2512 | filename_size = strlen(filename); |
2513 | |
2514 | strncat(filename, fac->name, PATH_MAX - filename_size); |
2515 | filename_size = strlen(filename); |
2516 | |
2517 | if(fac->arch) { |
2518 | strncat(filename, "_", PATH_MAX - filename_size); |
2519 | filename_size = strlen(filename); |
2520 | |
2521 | strncat(filename, fac->arch, PATH_MAX - filename_size); |
2522 | filename_size = strlen(filename); |
2523 | } |
2524 | |
2525 | strncat(filename, ".h", PATH_MAX - filename_size); |
2526 | filename_size = strlen(filename); |
2527 | |
2528 | |
2529 | fd = fopen(filename, "w"); |
2530 | if(fd == NULL) { |
2531 | printf("Error opening file %s for writing : %s\n", |
2532 | filename, strerror(errno)); |
2533 | return errno; |
2534 | } |
2535 | |
2536 | fprintf(fd, "#ifndef _LTT_FACILITY_LOADER_%s_H_\n", fac->capname); |
2537 | fprintf(fd, "#define _LTT_FACILITY_LOADER_%s_H_\n\n", fac->capname); |
f389e596 |
2538 | fprintf(fd,"#include <ltt/ltt-usertrace.h>\n"); |
bd7b8ca6 |
2539 | if(!fac->arch) |
2540 | fprintf(fd,"#include <ltt/ltt-facility-id-%s.h>\n\n", |
2541 | fac->name); |
2542 | else |
2543 | fprintf(fd,"#include <asm/ltt/ltt-facility-id-%s_%s.h>\n\n", |
2544 | fac->name, |
2545 | fac->arch); |
2546 | fprintf(fd,"ltt_facility_t\tltt_facility_%s;\n", fac->name); |
2547 | fprintf(fd,"ltt_facility_t\tltt_facility_%s_%X;\n\n", |
2548 | fac->name, fac->checksum); |
2549 | |
2550 | fprintf(fd,"#define LTT_FACILITY_SYMBOL\t\t\t\t\t\t\tltt_facility_%s\n", |
2551 | fac->name); |
2552 | fprintf(fd,"#define LTT_FACILITY_CHECKSUM_SYMBOL\t\tltt_facility_%s_%X\n", |
2553 | fac->name, fac->checksum); |
2554 | fprintf(fd,"#define LTT_FACILITY_CHECKSUM\t\t\t\t\t\t0x%X\n", fac->checksum); |
2555 | fprintf(fd,"#define LTT_FACILITY_NAME\t\t\t\t\t\t\t\t\"%s\"\n", fac->name); |
2556 | fprintf(fd,"#define LTT_FACILITY_NUM_EVENTS\t\t\t\t\tfacility_%s_num_events\n\n", |
2557 | fac->name); |
2558 | fprintf(fd, "#endif //_LTT_FACILITY_LOADER_%s_H_\n", fac->capname); |
2559 | |
2560 | fclose(fd); |
2561 | |
2562 | return 0; |
2563 | } |
2564 | |
2565 | |
2566 | |
2567 | /* ltt-facility-loader-name.c : generic facility loader |
2d2d14a7 |
2568 | * loader_c */ |
2569 | int print_loader_c(facility_t *fac) |
2570 | { |
2571 | char filename[PATH_MAX]; |
2572 | unsigned int filename_size = 0; |
2573 | FILE *fd; |
2574 | dprintf("%s\n", fac->name); |
2575 | |
2576 | strcpy(filename, "ltt-facility-loader-"); |
2577 | filename_size = strlen(filename); |
2578 | |
2579 | strncat(filename, fac->name, PATH_MAX - filename_size); |
2580 | filename_size = strlen(filename); |
2581 | |
ffaf5031 |
2582 | if(fac->arch) { |
2583 | strncat(filename, "_", PATH_MAX - filename_size); |
2584 | filename_size = strlen(filename); |
2585 | |
2586 | strncat(filename, fac->arch, PATH_MAX - filename_size); |
2587 | filename_size = strlen(filename); |
2588 | } |
2589 | |
2d2d14a7 |
2590 | strncat(filename, ".c", PATH_MAX - filename_size); |
2591 | filename_size = strlen(filename); |
2592 | |
2593 | |
2594 | fd = fopen(filename, "w"); |
2595 | if(fd == NULL) { |
2596 | printf("Error opening file %s for writing : %s\n", |
2597 | filename, strerror(errno)); |
2598 | return errno; |
2599 | } |
2600 | |
71e09db9 |
2601 | fprintf(fd, "/*\n"); |
ffaf5031 |
2602 | if(!fac->arch) |
2603 | fprintf(fd, " * ltt-facility-loader-%s.c\n", fac->name); |
2604 | else |
2605 | fprintf(fd, " * ltt-facility-loader-%s_%s.c\n", fac->name, fac->arch); |
71e09db9 |
2606 | fprintf(fd, " *\n"); |
2607 | fprintf(fd, " * (C) Copyright 2005 - \n"); |
2608 | fprintf(fd, " * Mathieu Desnoyers (mathieu.desnoyers@polymtl.ca)\n"); |
2609 | fprintf(fd, " *\n"); |
2610 | fprintf(fd, " * Contains the LTT facility loader.\n"); |
2611 | fprintf(fd, " *\n"); |
2612 | fprintf(fd, " */\n"); |
2613 | fprintf(fd, "\n"); |
2614 | fprintf(fd, "\n"); |
2615 | fprintf(fd, "#include <linux/ltt-facilities.h>\n"); |
2616 | fprintf(fd, "#include <linux/module.h>\n"); |
2617 | fprintf(fd, "#include <linux/init.h>\n"); |
2618 | fprintf(fd, "#include <linux/config.h>\n"); |
ffaf5031 |
2619 | if(!fac->arch) |
2620 | fprintf(fd, "#include \"ltt-facility-loader-%s.h\"\n", fac->name); |
2621 | else |
2622 | fprintf(fd, "#include \"ltt-facility-loader-%s_%s.h\"\n", |
2623 | fac->name, fac->arch); |
71e09db9 |
2624 | fprintf(fd, "\n"); |
2625 | fprintf(fd, "\n"); |
2626 | fprintf(fd, "#ifdef CONFIG_LTT\n"); |
2627 | fprintf(fd, "\n"); |
2628 | fprintf(fd, "EXPORT_SYMBOL(LTT_FACILITY_SYMBOL);\n"); |
2629 | fprintf(fd, "EXPORT_SYMBOL(LTT_FACILITY_CHECKSUM_SYMBOL);\n"); |
2630 | fprintf(fd, "\n"); |
2631 | fprintf(fd, "static const char ltt_facility_name[] = LTT_FACILITY_NAME;\n"); |
2632 | fprintf(fd, "\n"); |
2633 | fprintf(fd, "#define SYMBOL_STRING(sym) #sym\n"); |
2634 | fprintf(fd, "\n"); |
2635 | fprintf(fd, "static struct ltt_facility facility = {\n"); |
2636 | fprintf(fd, "\t.name = ltt_facility_name,\n"); |
2637 | fprintf(fd, "\t.num_events = LTT_FACILITY_NUM_EVENTS,\n"); |
2638 | fprintf(fd, "\t.checksum = LTT_FACILITY_CHECKSUM,\n"); |
2639 | fprintf(fd, "\t.symbol = SYMBOL_STRING(LTT_FACILITY_SYMBOL),\n"); |
2640 | fprintf(fd, "};\n"); |
2641 | fprintf(fd, "\n"); |
71e09db9 |
2642 | fprintf(fd, "static int __init facility_init(void)\n"); |
2643 | fprintf(fd, "{\n"); |
2644 | fprintf(fd, "\tprintk(KERN_INFO \"LTT : ltt-facility-%s init in kernel\\n\");\n", fac->name); |
2645 | fprintf(fd, "\n"); |
bd7b8ca6 |
2646 | fprintf(fd, "\tLTT_FACILITY_SYMBOL = ltt_facility_kernel_register(&facility);\n"); |
71e09db9 |
2647 | fprintf(fd, "\tLTT_FACILITY_CHECKSUM_SYMBOL = LTT_FACILITY_SYMBOL;\n"); |
2648 | fprintf(fd, "\t\n"); |
2649 | fprintf(fd, "\treturn LTT_FACILITY_SYMBOL;\n"); |
2650 | fprintf(fd, "}\n"); |
71e09db9 |
2651 | fprintf(fd, "\n"); |
bd7b8ca6 |
2652 | fprintf(fd, "#ifndef MODULE\n"); |
ba899d3d |
2653 | fprintf(fd, "__initcall(facility_init);\n"); |
2654 | fprintf(fd, "#else\n"); |
2655 | fprintf(fd, "module_init(facility_init);\n"); |
71e09db9 |
2656 | fprintf(fd, "static void __exit facility_exit(void)\n"); |
2657 | fprintf(fd, "{\n"); |
2658 | fprintf(fd, "\tint err;\n"); |
2659 | fprintf(fd, "\n"); |
bd7b8ca6 |
2660 | fprintf(fd, "\terr = ltt_facility_unregister(LTT_FACILITY_SYMBOL);\n"); |
71e09db9 |
2661 | fprintf(fd, "\tif(err != 0)\n"); |
2662 | fprintf(fd, "\t\tprintk(KERN_ERR \"LTT : Error in unregistering facility.\\n\");\n"); |
2663 | fprintf(fd, "\n"); |
2664 | fprintf(fd, "}\n"); |
71e09db9 |
2665 | fprintf(fd, "module_exit(facility_exit)\n"); |
2666 | fprintf(fd, "\n"); |
71e09db9 |
2667 | fprintf(fd, "MODULE_LICENSE(\"GPL\");\n"); |
2668 | fprintf(fd, "MODULE_AUTHOR(\"Mathieu Desnoyers\");\n"); |
2669 | fprintf(fd, "MODULE_DESCRIPTION(\"Linux Trace Toolkit Facility\");\n"); |
2670 | fprintf(fd, "\n"); |
2671 | fprintf(fd, "#endif //MODULE\n"); |
2672 | fprintf(fd, "\n"); |
2673 | fprintf(fd, "#endif //CONFIG_LTT\n"); |
2d2d14a7 |
2674 | |
2675 | fclose(fd); |
2676 | |
2677 | return 0; |
2678 | } |
2679 | |
bd7b8ca6 |
2680 | int print_loader_c_user(facility_t *fac) |
2681 | { |
2682 | char filename[PATH_MAX]; |
2683 | unsigned int filename_size = 0; |
2684 | FILE *fd; |
2685 | dprintf("%s\n", fac->name); |
2686 | |
2687 | strcpy(filename, "ltt-facility-loader-"); |
2688 | filename_size = strlen(filename); |
2689 | |
2690 | strncat(filename, fac->name, PATH_MAX - filename_size); |
2691 | filename_size = strlen(filename); |
2692 | |
2693 | if(fac->arch) { |
2694 | strncat(filename, "_", PATH_MAX - filename_size); |
2695 | filename_size = strlen(filename); |
2696 | |
2697 | strncat(filename, fac->arch, PATH_MAX - filename_size); |
2698 | filename_size = strlen(filename); |
2699 | } |
2700 | |
2701 | strncat(filename, ".c", PATH_MAX - filename_size); |
2702 | filename_size = strlen(filename); |
2703 | |
2704 | |
2705 | fd = fopen(filename, "w"); |
2706 | if(fd == NULL) { |
2707 | printf("Error opening file %s for writing : %s\n", |
2708 | filename, strerror(errno)); |
2709 | return errno; |
2710 | } |
2711 | |
2712 | fprintf(fd, "/*\n"); |
2713 | if(!fac->arch) |
2714 | fprintf(fd, " * ltt-facility-loader-%s.c\n", fac->name); |
2715 | else |
2716 | fprintf(fd, " * ltt-facility-loader-%s_%s.c\n", fac->name, fac->arch); |
2717 | fprintf(fd, " *\n"); |
2718 | fprintf(fd, " * (C) Copyright 2005 - \n"); |
2719 | fprintf(fd, " * Mathieu Desnoyers (mathieu.desnoyers@polymtl.ca)\n"); |
2720 | fprintf(fd, " *\n"); |
2721 | fprintf(fd, " * Contains the LTT user space facility loader.\n"); |
2722 | fprintf(fd, " *\n"); |
2723 | fprintf(fd, " */\n"); |
2724 | fprintf(fd, "\n"); |
2725 | fprintf(fd, "\n"); |
2726 | fprintf(fd, "#define LTT_TRACE\n"); |
2727 | fprintf(fd, "#include <error.h>\n"); |
2728 | fprintf(fd, "#include <stdio.h>\n"); |
f389e596 |
2729 | fprintf(fd, "#include <ltt/ltt-usertrace.h>\n"); |
bd7b8ca6 |
2730 | if(!fac->arch) |
2731 | fprintf(fd, "#include \"ltt-facility-loader-%s.h\"\n", fac->name); |
2732 | else |
2733 | fprintf(fd, "#include \"ltt-facility-loader-%s_%s.h\"\n", |
2734 | fac->name, fac->arch); |
2735 | fprintf(fd, "\n"); |
2736 | fprintf(fd, "static struct user_facility_info facility = {\n"); |
2737 | fprintf(fd, "\t.name = LTT_FACILITY_NAME,\n"); |
2738 | fprintf(fd, "\t.num_events = LTT_FACILITY_NUM_EVENTS,\n"); |
2739 | fprintf(fd, "#ifndef LTT_PACK\n"); |
2740 | fprintf(fd, "\t.alignment = sizeof(void*),\n"); |
2741 | fprintf(fd, "#else\n"); |
2742 | fprintf(fd, "\t.alignment = 0,\n"); |
2743 | fprintf(fd, "#endif //LTT_PACK\n"); |
2744 | fprintf(fd, "\t.checksum = LTT_FACILITY_CHECKSUM,\n"); |
2745 | fprintf(fd, "\t.int_size = sizeof(int),\n"); |
2746 | fprintf(fd, "\t.long_size = sizeof(long),\n"); |
2747 | fprintf(fd, "\t.pointer_size = sizeof(void*),\n"); |
2748 | fprintf(fd, "\t.size_t_size = sizeof(size_t)\n"); |
2749 | fprintf(fd, "};\n"); |
2750 | fprintf(fd, "\n"); |
2751 | fprintf(fd, "static void __attribute__((constructor)) __ltt_user_init(void)\n"); |
2752 | fprintf(fd, "{\n"); |
2753 | fprintf(fd, "\tint err;\n"); |
2d6c6b76 |
2754 | fprintf(fd, "#ifdef LTT_SHOW_DEBUG\n"); |
bd7b8ca6 |
2755 | fprintf(fd, "\tprintf(\"LTT : ltt-facility-%s init in userspace\\n\");\n", fac->name); |
2d6c6b76 |
2756 | fprintf(fd, "#endif //LTT_SHOW_DEBUG\n"); |
bd7b8ca6 |
2757 | fprintf(fd, "\n"); |
2758 | fprintf(fd, "\terr = ltt_register_generic(<T_FACILITY_SYMBOL, &facility);\n"); |
2759 | fprintf(fd, "\tLTT_FACILITY_CHECKSUM_SYMBOL = LTT_FACILITY_SYMBOL;\n"); |
2760 | fprintf(fd, "\t\n"); |
2761 | fprintf(fd, "\tif(err) {\n"); |
2d6c6b76 |
2762 | fprintf(fd, "#ifdef LTT_SHOW_DEBUG\n"); |
bd7b8ca6 |
2763 | fprintf(fd, "\t\tperror(\"Error in ltt_register_generic\");\n"); |
2d6c6b76 |
2764 | fprintf(fd, "#endif //LTT_SHOW_DEBUG\n"); |
bd7b8ca6 |
2765 | fprintf(fd, "\t}\n"); |
2766 | fprintf(fd, "}\n"); |
2767 | fprintf(fd, "\n"); |
2768 | |
2769 | fclose(fd); |
2770 | |
2771 | return 0; |
2772 | } |
2773 | |
2d2d14a7 |
2774 | |
2775 | |
92d82357 |
2776 | /* open facility */ |
2777 | /* code taken from ltt_facility_open in ltt/facility.c in lttv */ |
2778 | |
2779 | /***************************************************************************** |
2780 | *Function name |
2781 | * ltt_facility_open : open facilities |
2782 | *Input params |
2783 | * pathname : the path name of the facility |
2784 | * |
2785 | * Open the facility corresponding to the right checksum. |
2786 | * |
2787 | *returns the facility on success, NULL on error. |
2788 | ****************************************************************************/ |
2789 | facility_t *ltt_facility_open(char * pathname) |
2790 | { |
2791 | int ret = 0; |
2792 | char *token; |
2793 | parse_file_t in; |
2794 | facility_t * fac = NULL; |
92d82357 |
2795 | char buffer[BUFFER_SIZE]; |
2796 | int generated = FALSE; |
2797 | |
2798 | in.buffer = &(buffer[0]); |
2799 | in.lineno = 0; |
2800 | in.error = error_callback; |
2801 | in.name = pathname; |
2802 | in.unget = 0; |
2803 | |
2804 | in.fp = fopen(in.name, "r"); |
2805 | if(in.fp == NULL) { |
2806 | ret = 1; |
2807 | goto open_error; |
2808 | } |
2809 | |
2810 | while(1){ |
2811 | token = getToken(&in); |
2812 | if(in.type == ENDFILE) break; |
2813 | |
2814 | if(generated) { |
2815 | printf("More than one facility in the file. Only using the first one.\n"); |
2816 | break; |
2817 | } |
2818 | |
2819 | if(strcmp(token, "<")) in.error(&in,"not a facility file"); |
2820 | token = getName(&in); |
f389e596 |
2821 | if(strcmp(token, "?")) in.error(&in,"not a facility file"); |
2822 | token = getName(&in); |
2823 | if(strcmp(token, "xml")) in.error(&in,"not a facility file"); |
2824 | token = getName(&in); |
2825 | if(strcmp(token, "version")) in.error(&in,"not a facility file"); |
2826 | token = getName(&in); |
2827 | if(strcmp(token, "=")) in.error(&in,"not a facility file"); |
2828 | token = getQuotedString(&in); |
2829 | if(strcmp(token, "1.0")) in.error(&in,"not a facility file"); |
2830 | token = getName(&in); |
2831 | if(strcmp(token, "?")) in.error(&in,"not a facility file"); |
2832 | token = getToken(&in); |
2833 | if(strcmp(token, ">")) in.error(&in,"not a facility file"); |
92d82357 |
2834 | |
f389e596 |
2835 | token = getName(&in); |
2836 | if(strcmp(token, "<")) in.error(&in,"not a facility file"); |
2837 | token = getName(&in); |
92d82357 |
2838 | if(strcmp("facility",token) == 0) { |
2839 | fac = malloc(sizeof(facility_t)); |
2840 | fac->name = NULL; |
2841 | fac->description = NULL; |
2842 | sequence_init(&(fac->events)); |
2843 | table_init(&(fac->named_types)); |
2844 | sequence_init(&(fac->unnamed_types)); |
2845 | |
2846 | parseFacility(&in, fac); |
2847 | |
2848 | //check if any namedType is not defined |
2849 | checkNamedTypesImplemented(&fac->named_types); |
2850 | |
2e415130 |
2851 | generateChecksum(fac->name, &fac->checksum, &fac->events); |
a67cd958 |
2852 | |
92d82357 |
2853 | generated = TRUE; |
2854 | } |
2855 | else { |
2856 | printf("facility token was expected in file %s\n", in.name); |
2857 | ret = 1; |
2858 | goto parse_error; |
2859 | } |
2860 | } |
2861 | |
2862 | parse_error: |
2863 | fclose(in.fp); |
2864 | open_error: |
2865 | |
2866 | if(!generated) { |
2867 | printf("Cannot find facility %s\n", pathname); |
2868 | fac = NULL; |
2869 | } |
2870 | |
2871 | return fac; |
2872 | } |
2873 | |
2874 | /* Close the facility */ |
2875 | void ltt_facility_close(facility_t *fac) |
2876 | { |
2877 | free(fac->name); |
2878 | free(fac->capname); |
2879 | free(fac->description); |
2880 | freeEvents(&fac->events); |
2881 | sequence_dispose(&fac->events); |
2882 | freeNamedType(&fac->named_types); |
2883 | table_dispose(&fac->named_types); |
2884 | freeTypes(&fac->unnamed_types); |
2885 | sequence_dispose(&fac->unnamed_types); |
2886 | free(fac); |
2887 | } |
2888 | |
2889 | |
2890 | /* Show help */ |
2891 | void show_help(int argc, char ** argv) |
2892 | { |
2893 | printf("Genevent help : \n"); |
2894 | printf("\n"); |
2895 | printf("Use %s name.xml\n", argv[0]); |
2896 | printf("to create :\n"); |
2897 | printf("ltt-facility-name.h\n"); |
2898 | printf("ltt-facility-id-name.h\n"); |
2899 | printf("ltt-facility-loader-name.h\n"); |
2900 | printf("ltt-facility-loader-name.c\n"); |
2901 | printf("In the current directory.\n"); |
2902 | printf("\n"); |
2903 | } |
2904 | |
2905 | /* Parse program arguments */ |
2906 | /* Return values : |
2907 | * 0 : continue program |
2908 | * -1 : stop program, return 0 |
2909 | * > 0 : stop program, return value as exit. |
2910 | */ |
2911 | int check_args(int argc, char **argv) |
2912 | { |
2913 | if(argc < 2) { |
2914 | printf("Not enough arguments\n"); |
2915 | show_help(argc, argv); |
2916 | return EINVAL; |
2917 | } |
2918 | |
2919 | if(strcmp(argv[1], "-h") == 0) { |
2920 | show_help(argc, argv); |
2921 | return -1; |
2922 | } |
2923 | |
2924 | return 0; |
2925 | } |
2926 | |
2927 | int main(int argc, char **argv) |
2928 | { |
2929 | int err = 0; |
2930 | facility_t *fac; |
2931 | |
2932 | err = check_args(argc, argv); |
2933 | if(err > 0) return err; |
2934 | else if(err < 0) return 0; |
2935 | |
2936 | /* open the facility */ |
2937 | fac = ltt_facility_open(argv[1]); |
2938 | if(fac == NULL) { |
2939 | printf("Error opening file %s for reading : %s\n", |
2940 | argv[1], strerror(errno)); |
2941 | return errno; |
2942 | } |
2943 | |
2944 | /* generate the output C files */ |
2945 | |
2946 | |
2d2d14a7 |
2947 | /* ltt-facility-name.h : main logging header. |
2948 | * log_header */ |
2949 | err = print_log_header(fac); |
2950 | if(err) return err; |
92d82357 |
2951 | |
2d2d14a7 |
2952 | /* ltt-facility-id-name.h : facility id. |
2953 | * log_id_header */ |
2954 | err = print_id_header(fac); |
2955 | if(err) return err; |
92d82357 |
2956 | |
2d2d14a7 |
2957 | /* ltt-facility-loader-name.h : facility specific loader info. |
2958 | * loader_header */ |
bd7b8ca6 |
2959 | if(!fac->user) |
2960 | err = print_loader_header(fac); |
2961 | else |
2962 | err = print_loader_header_user(fac); |
2d2d14a7 |
2963 | if(err) return err; |
2964 | |
2965 | /* ltt-facility-loader-name.c : generic faciilty loader |
2966 | * loader_c */ |
bd7b8ca6 |
2967 | if(!fac->user) |
2968 | err = print_loader_c(fac); |
2969 | else |
2970 | err = print_loader_c_user(fac); |
2d2d14a7 |
2971 | if(err) return err; |
92d82357 |
2972 | |
2973 | /* close the facility */ |
2974 | ltt_facility_close(fac); |
2975 | |
2976 | return 0; |
2977 | } |
2978 | |
2979 | |