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: |
154 | fprintf(fd, "void *"); |
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)]); |
227 | fprintf(fd, " %s", field_name); |
228 | break; |
229 | case UINT_FIXED: |
230 | fprintf(fd, "%s", uintOutputTypes[getSizeindex(td->size)]); |
231 | fprintf(fd, " %s", field_name); |
232 | break; |
233 | case CHAR: |
234 | fprintf(fd, "signed char"); |
235 | fprintf(fd, " %s", field_name); |
236 | break; |
237 | case UCHAR: |
238 | fprintf(fd, "unsigned char"); |
239 | fprintf(fd, " %s", field_name); |
240 | break; |
241 | case SHORT: |
242 | fprintf(fd, "short"); |
243 | fprintf(fd, " %s", field_name); |
244 | break; |
245 | case USHORT: |
246 | fprintf(fd, "unsigned short"); |
247 | fprintf(fd, " %s", field_name); |
248 | break; |
249 | case INT: |
250 | fprintf(fd, "int"); |
251 | fprintf(fd, " %s", field_name); |
252 | break; |
253 | case UINT: |
254 | fprintf(fd, "unsigned int"); |
255 | fprintf(fd, " %s", field_name); |
256 | break; |
257 | case FLOAT: |
258 | fprintf(fd, "%s", floatOutputTypes[getSizeindex(td->size)]); |
259 | fprintf(fd, " %s", field_name); |
260 | break; |
261 | case POINTER: |
262 | fprintf(fd, "void *"); |
263 | fprintf(fd, " %s", field_name); |
264 | break; |
265 | case LONG: |
266 | fprintf(fd, "long"); |
267 | fprintf(fd, " %s", field_name); |
268 | break; |
269 | case ULONG: |
270 | fprintf(fd, "unsigned long"); |
271 | fprintf(fd, " %s", field_name); |
272 | break; |
273 | case SIZE_T: |
274 | fprintf(fd, "size_t"); |
275 | fprintf(fd, " %s", field_name); |
276 | break; |
277 | case SSIZE_T: |
278 | fprintf(fd, "ssize_t"); |
279 | fprintf(fd, " %s", field_name); |
280 | break; |
281 | case OFF_T: |
282 | fprintf(fd, "off_t"); |
283 | fprintf(fd, " %s", field_name); |
284 | break; |
285 | case STRING: |
3d9b9b0c |
286 | fprintf(fd, "const char *"); |
7e97b039 |
287 | fprintf(fd, " %s", field_name); |
288 | break; |
289 | case ENUM: |
290 | fprintf(fd, "enum lttng_%s", basename); |
291 | fprintf(fd, " %s", field_name); |
292 | break; |
293 | case ARRAY: |
294 | fprintf(fd, "lttng_array_%s", basename); |
295 | fprintf(fd, " %s", field_name); |
296 | break; |
297 | case SEQUENCE: |
298 | fprintf(fd, "lttng_sequence_%s *", basename); |
299 | fprintf(fd, " %s", field_name); |
300 | break; |
301 | case STRUCT: |
302 | fprintf(fd, "struct lttng_%s *", basename); |
303 | fprintf(fd, " %s", field_name); |
304 | break; |
305 | case UNION: |
306 | fprintf(fd, "union lttng_%s *", basename); |
307 | fprintf(fd, " %s", field_name); |
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 | |
7b175edc |
389 | strncpy(basename, nest_name, PATH_MAX); |
2d2d14a7 |
390 | basename_len = strlen(basename); |
391 | |
392 | /* For a named type, we use the type_name directly */ |
393 | if(td->type_name != NULL) { |
394 | strncpy(basename, td->type_name, PATH_MAX); |
395 | basename_len = strlen(basename); |
396 | } else { |
7b175edc |
397 | /* For a unnamed type, there must be a field name, except for |
398 | * the array. */ |
399 | if((basename_len != 0) |
400 | && (basename[basename_len-1] != '_' |
401 | && (field_name[0] != '\0'))) { |
2d2d14a7 |
402 | strncat(basename, "_", PATH_MAX - basename_len); |
403 | basename_len = strlen(basename); |
404 | } |
405 | strncat(basename, field_name, PATH_MAX - basename_len); |
2d2d14a7 |
406 | } |
407 | |
408 | switch(td->type) { |
409 | case ENUM: |
410 | fprintf(fd, "enum lttng_%s", basename); |
411 | fprintf(fd, " {\n"); |
412 | for(unsigned int i=0;i<td->labels.position;i++){ |
413 | print_tabs(1, fd); |
414 | fprintf(fd, "LTTNG_%s", ((char*)(td->labels.array[i]))); |
415 | fprintf(fd, ",\n"); |
416 | } |
417 | fprintf(fd, "};\n"); |
418 | fprintf(fd, "\n"); |
419 | break; |
420 | |
421 | case ARRAY: |
7b175edc |
422 | dprintf("%s\n", basename); |
2d2d14a7 |
423 | assert(td->size >= 0); |
a67cd958 |
424 | if(((field_t*)td->fields.array[0])->type->type_name == NULL) { |
2d2d14a7 |
425 | /* Not a named nested type : we must print its declaration first */ |
a67cd958 |
426 | if(print_type_declaration(((field_t*)td->fields.array[0])->type, |
2d2d14a7 |
427 | fd, 0, basename, "")) return 1; |
428 | } |
2e415130 |
429 | fprintf(fd, "#define LTTNG_ARRAY_SIZE_%s %zu\n", basename, |
2d2d14a7 |
430 | td->size); |
7e97b039 |
431 | fprintf(fd, "typedef "); |
a67cd958 |
432 | if(print_type(((field_t*)td->fields.array[0])->type, |
433 | fd, tabs, basename, "")) return 1; |
2d2d14a7 |
434 | fprintf(fd, " lttng_array_%s[LTTNG_ARRAY_SIZE_%s];\n", basename, |
435 | basename); |
436 | fprintf(fd, "\n"); |
437 | break; |
438 | case SEQUENCE: |
a67cd958 |
439 | /* We assume that the sequence length type does not need to be declared. |
440 | */ |
441 | if(((field_t*)td->fields.array[1])->type->type_name == NULL) { |
2d2d14a7 |
442 | /* Not a named nested type : we must print its declaration first */ |
a67cd958 |
443 | if(print_type_declaration(((field_t*)td->fields.array[1])->type, |
2d2d14a7 |
444 | fd, 0, basename, "")) return 1; |
445 | } |
446 | fprintf(fd, "typedef struct lttng_sequence_%s lttng_sequence_%s;\n", |
447 | basename, |
448 | basename); |
449 | fprintf(fd, "struct lttng_sequence_%s", basename); |
450 | fprintf(fd, " {\n"); |
451 | print_tabs(1, fd); |
a3e6ce64 |
452 | if(print_type(((field_t*)td->fields.array[0])->type, |
453 | fd, tabs, basename, "")) return 1; |
40c18b13 |
454 | fprintf(fd, " len;\n"); |
2d2d14a7 |
455 | print_tabs(1, fd); |
a67cd958 |
456 | if(print_type(((field_t*)td->fields.array[1])->type, |
457 | fd, tabs, basename, "")) return 1; |
2d2d14a7 |
458 | fprintf(fd, " *array;\n"); |
d428224c |
459 | fprintf(fd, "};\n"); /* We do not LTT_ALIGN, because we never copy |
460 | it to the buffer directly. */ |
2d2d14a7 |
461 | fprintf(fd, "\n"); |
462 | break; |
463 | |
464 | case STRUCT: |
465 | for(unsigned int i=0;i<td->fields.position;i++){ |
466 | field_t *field = (field_t*)(td->fields.array[i]); |
467 | type_descriptor_t *type = field->type; |
468 | if(type->type_name == NULL) { |
469 | /* Not a named nested type : we must print its declaration first */ |
470 | if(print_type_declaration(type, |
471 | fd, 0, basename, field->name)) return 1; |
472 | } |
473 | } |
474 | fprintf(fd, "struct lttng_%s", basename); |
475 | fprintf(fd, " {\n"); |
476 | for(unsigned int i=0;i<td->fields.position;i++){ |
477 | field_t *field = (field_t*)(td->fields.array[i]); |
478 | type_descriptor_t *type = field->type; |
479 | print_tabs(1, fd); |
47299663 |
480 | if(print_type(type, fd, tabs, basename, field->name)) return 1; |
2d2d14a7 |
481 | fprintf(fd, " "); |
482 | fprintf(fd, "%s", field->name); |
483 | fprintf(fd, ";\n"); |
484 | } |
d428224c |
485 | fprintf(fd, "} LTT_ALIGN;\n"); |
2d2d14a7 |
486 | fprintf(fd, "\n"); |
487 | break; |
488 | case UNION: |
2d2d14a7 |
489 | for(unsigned int i=0;i<td->fields.position;i++){ |
490 | field_t *field = (field_t*)(td->fields.array[i]); |
491 | type_descriptor_t *type = field->type; |
492 | if(type->type_name == NULL) { |
493 | /* Not a named nested type : we must print its declaration first */ |
47299663 |
494 | if(print_type_declaration(type, |
495 | fd, 0, basename, field->name)) return 1; |
2d2d14a7 |
496 | } |
497 | } |
498 | fprintf(fd, "union lttng_%s", basename); |
499 | fprintf(fd, " {\n"); |
500 | for(unsigned i=0;i<td->fields.position;i++){ |
501 | field_t *field = (field_t*)(td->fields.array[i]); |
502 | type_descriptor_t *type = field->type; |
503 | print_tabs(1, fd); |
47299663 |
504 | if(print_type(type, fd, tabs, basename, field->name)) return 1; |
2d2d14a7 |
505 | fprintf(fd, " "); |
506 | fprintf(fd, "%s", field->name); |
507 | fprintf(fd, ";\n"); |
508 | } |
d428224c |
509 | fprintf(fd, "} LTT_ALIGN;\n"); |
2d2d14a7 |
510 | fprintf(fd, "\n"); |
511 | break; |
512 | default: |
513 | dprintf("print_type_declaration : unknown type or nothing to declare.\n"); |
514 | break; |
515 | } |
516 | |
517 | return 0; |
518 | } |
519 | |
a67cd958 |
520 | |
a3e6ce64 |
521 | /* print type alignment. |
522 | * |
523 | * Copied from construct_types_and_fields in LTTV facility.c |
524 | * |
525 | * basename is the name which identifies the type (along with a prefix |
526 | * (possibly)). */ |
a67cd958 |
527 | |
a3e6ce64 |
528 | int print_type_alignment(type_descriptor_t * td, FILE *fd, unsigned int tabs, |
3261899d |
529 | char *nest_name, char *field_name, char *obj_prefix) |
a67cd958 |
530 | { |
a3e6ce64 |
531 | char basename[PATH_MAX]; |
532 | unsigned int basename_len = 0; |
533 | |
534 | strncpy(basename, nest_name, PATH_MAX); |
535 | basename_len = strlen(basename); |
536 | |
537 | /* For a named type, we use the type_name directly */ |
538 | if(td->type_name != NULL) { |
539 | strncpy(basename, td->type_name, PATH_MAX); |
540 | basename_len = strlen(basename); |
a67cd958 |
541 | } else { |
a3e6ce64 |
542 | /* For a unnamed type, there must be a field name, except for |
543 | * the array. */ |
544 | if((basename_len != 0) |
545 | && (basename[basename_len-1] != '_' |
34c1d1b5 |
546 | && field_name != NULL |
a3e6ce64 |
547 | && (field_name[0] != '\0'))) { |
548 | strncat(basename, "_", PATH_MAX - basename_len); |
549 | basename_len = strlen(basename); |
a67cd958 |
550 | } |
34c1d1b5 |
551 | if(field_name != NULL) |
552 | strncat(basename, field_name, PATH_MAX - basename_len); |
a67cd958 |
553 | } |
a3e6ce64 |
554 | |
3d9b9b0c |
555 | if(field_name[0] == '\0') { |
556 | /* We are in a write function : it's the obj that we must align. */ |
557 | switch(td->type) { |
558 | case SEQUENCE: |
3261899d |
559 | fprintf(fd, "lttng_get_alignment_sequence_%s(%s)", basename, |
560 | obj_prefix); |
3d9b9b0c |
561 | break; |
562 | case STRUCT: |
3261899d |
563 | fprintf(fd, "lttng_get_alignment_struct_%s(%s)", basename, |
564 | obj_prefix); |
3d9b9b0c |
565 | break; |
566 | case UNION: |
3261899d |
567 | fprintf(fd, "lttng_get_alignment_union_%s(%s)", basename, |
568 | obj_prefix); |
3d9b9b0c |
569 | break; |
570 | case ARRAY: |
3261899d |
571 | fprintf(fd, "lttng_get_alignment_array_%s(%s)", basename, |
572 | obj_prefix); |
3d9b9b0c |
573 | break; |
574 | default: |
575 | printf("error : type unexpected\n"); |
576 | return 1; |
577 | break; |
578 | } |
579 | } else { |
580 | |
581 | switch(td->type) { |
582 | case INT_FIXED: |
583 | case UINT_FIXED: |
584 | case CHAR: |
585 | case UCHAR: |
586 | case SHORT: |
587 | case USHORT: |
588 | case INT: |
589 | case UINT: |
590 | case FLOAT: |
591 | case POINTER: |
592 | case LONG: |
593 | case ULONG: |
594 | case SIZE_T: |
595 | case SSIZE_T: |
596 | case OFF_T: |
597 | case ENUM: |
598 | fprintf(fd, "sizeof("); |
599 | if(print_type(td, fd, 0, basename, "")) return 1; |
600 | fprintf(fd, ")"); |
601 | break; |
602 | case STRING: |
603 | fprintf(fd, "sizeof(char)"); |
604 | break; |
605 | case SEQUENCE: |
3261899d |
606 | fprintf(fd, "lttng_get_alignment_sequence_%s(&%s%s)", basename, |
607 | obj_prefix, field_name); |
3d9b9b0c |
608 | break; |
609 | case STRUCT: |
3261899d |
610 | fprintf(fd, "lttng_get_alignment_struct_%s(&%s%s)", basename, |
611 | obj_prefix, field_name); |
3d9b9b0c |
612 | break; |
613 | case UNION: |
3261899d |
614 | fprintf(fd, "lttng_get_alignment_union_%s(&%s%s)", basename, |
615 | obj_prefix, field_name); |
3d9b9b0c |
616 | break; |
617 | case ARRAY: |
3261899d |
618 | fprintf(fd, "lttng_get_alignment_array_%s(%s%s)", basename, |
619 | obj_prefix, field_name); |
3d9b9b0c |
620 | break; |
621 | case NONE: |
622 | printf("error : type NONE unexpected\n"); |
623 | return 1; |
624 | break; |
625 | } |
a3e6ce64 |
626 | } |
3d9b9b0c |
627 | |
a3e6ce64 |
628 | return 0; |
a67cd958 |
629 | } |
630 | |
a3e6ce64 |
631 | /* print type write. |
632 | * |
633 | * Copied from construct_types_and_fields in LTTV facility.c |
634 | * |
635 | * basename is the name which identifies the type (along with a prefix |
636 | * (possibly)). */ |
a67cd958 |
637 | |
a3e6ce64 |
638 | int print_type_write(type_descriptor_t * td, FILE *fd, unsigned int tabs, |
3261899d |
639 | char *nest_name, char *field_name, char *obj_prefix) |
a67cd958 |
640 | { |
a67cd958 |
641 | char basename[PATH_MAX]; |
642 | unsigned int basename_len = 0; |
a3e6ce64 |
643 | |
644 | strncpy(basename, nest_name, PATH_MAX); |
a67cd958 |
645 | basename_len = strlen(basename); |
646 | |
647 | /* For a named type, we use the type_name directly */ |
648 | if(td->type_name != NULL) { |
649 | strncpy(basename, td->type_name, PATH_MAX); |
650 | basename_len = strlen(basename); |
651 | } else { |
a3e6ce64 |
652 | /* For a unnamed type, there must be a field name, except for |
653 | * the array. */ |
a67cd958 |
654 | if((basename_len != 0) |
a3e6ce64 |
655 | && (basename[basename_len-1] != '_' |
656 | && (field_name[0] != '\0'))) { |
a67cd958 |
657 | strncat(basename, "_", PATH_MAX - basename_len); |
658 | basename_len = strlen(basename); |
659 | } |
660 | strncat(basename, field_name, PATH_MAX - basename_len); |
661 | } |
662 | |
a67cd958 |
663 | switch(td->type) { |
664 | case INT_FIXED: |
665 | case UINT_FIXED: |
666 | case CHAR: |
667 | case UCHAR: |
668 | case SHORT: |
669 | case USHORT: |
670 | case INT: |
671 | case UINT: |
672 | case FLOAT: |
673 | case POINTER: |
674 | case LONG: |
675 | case ULONG: |
676 | case SIZE_T: |
677 | case SSIZE_T: |
678 | case OFF_T: |
679 | case ENUM: |
a67cd958 |
680 | print_tabs(tabs, fd); |
a3e6ce64 |
681 | fprintf(fd, "size = "); |
682 | fprintf(fd, "sizeof("); |
2e415130 |
683 | if(print_type(td, fd, 0, basename, "")) return 1; |
a67cd958 |
684 | fprintf(fd, ");\n"); |
a67cd958 |
685 | print_tabs(tabs, fd); |
30d72138 |
686 | fprintf(fd, "size += ltt_align(*to+*len, size) + size;\n"); |
a3e6ce64 |
687 | print_tabs(tabs, fd); |
688 | fprintf(fd, "*len += size;"); |
a67cd958 |
689 | break; |
690 | case STRING: |
a67cd958 |
691 | print_tabs(tabs, fd); |
3261899d |
692 | fprintf(fd, |
693 | "lttng_write_string_%s(buffer, to_base, to, from, len, %s%s);\n", |
694 | basename, obj_prefix, field_name); |
a3e6ce64 |
695 | break; |
696 | case SEQUENCE: |
697 | print_tabs(tabs, fd); |
3261899d |
698 | fprintf(fd, |
699 | "lttng_write_%s(buffer, to_base, to, from, len, &%s%s)", |
700 | basename, obj_prefix, field_name); |
a3e6ce64 |
701 | break; |
702 | case STRUCT: |
703 | print_tabs(tabs, fd); |
3261899d |
704 | fprintf(fd, |
705 | "lttng_write_struct_%s(buffer, to_base, to, from, len, &%s%s)", |
706 | basename, obj_prefix, field_name); |
a3e6ce64 |
707 | break; |
708 | case UNION: |
709 | print_tabs(tabs, fd); |
3261899d |
710 | fprintf(fd, |
711 | "lttng_write_union_%s(buffer, to_base, to, from, len, &%s%s)", |
712 | basename, obj_prefix, field_name); |
a67cd958 |
713 | break; |
714 | case ARRAY: |
a67cd958 |
715 | print_tabs(tabs, fd); |
3261899d |
716 | fprintf(fd, |
717 | "lttng_write_array_%s(buffer, to_base, to, from, len, %s%s)", |
718 | basename, obj_prefix, field_name); |
a3e6ce64 |
719 | break; |
2e415130 |
720 | case NONE: |
721 | printf("Error : type NONE unexpected\n"); |
722 | return 1; |
723 | break; |
a3e6ce64 |
724 | } |
a67cd958 |
725 | |
a3e6ce64 |
726 | return 0; |
727 | } |
a67cd958 |
728 | |
a67cd958 |
729 | |
a67cd958 |
730 | |
a3e6ce64 |
731 | /* print type alignment function. |
732 | * |
733 | * Copied from construct_types_and_fields in LTTV facility.c |
734 | * |
735 | * basename is the name which identifies the type (along with a prefix |
736 | * (possibly)). */ |
737 | |
738 | int print_type_alignment_fct(type_descriptor_t * td, FILE *fd, |
739 | unsigned int tabs, |
740 | char *nest_name, char *field_name) |
741 | { |
742 | char basename[PATH_MAX]; |
743 | unsigned int basename_len = 0; |
744 | |
745 | strncpy(basename, nest_name, PATH_MAX); |
746 | basename_len = strlen(basename); |
747 | |
748 | /* For a named type, we use the type_name directly */ |
749 | if(td->type_name != NULL) { |
750 | strncpy(basename, td->type_name, PATH_MAX); |
751 | basename_len = strlen(basename); |
752 | } else { |
753 | /* For a unnamed type, there must be a field name, except for |
754 | * the array. */ |
755 | if((basename_len != 0) |
756 | && (basename[basename_len-1] != '_' |
757 | && (field_name[0] != '\0'))) { |
758 | strncat(basename, "_", PATH_MAX - basename_len); |
759 | basename_len = strlen(basename); |
760 | } |
761 | strncat(basename, field_name, PATH_MAX - basename_len); |
762 | } |
763 | |
764 | switch(td->type) { |
765 | case SEQUENCE: |
766 | /* Function header */ |
767 | fprintf(fd, "static inline size_t lttng_get_alignment_sequence_%s(\n", |
768 | basename); |
769 | print_tabs(2, fd); |
2e415130 |
770 | if(print_type(td, fd, 0, basename, "")) return 1; |
a3e6ce64 |
771 | fprintf(fd, " *obj)\n"); |
772 | fprintf(fd, "{\n"); |
773 | print_tabs(1, fd); |
774 | fprintf(fd, "size_t align=0, localign;"); |
775 | fprintf(fd, "\n"); |
776 | print_tabs(1, fd); |
777 | fprintf(fd, "localign = "); |
778 | if(print_type_alignment(((field_t*)td->fields.array[0])->type, |
3261899d |
779 | fd, 0, basename, "len", "obj->")) return 1; |
a3e6ce64 |
780 | fprintf(fd, ";\n"); |
781 | print_tabs(1, fd); |
782 | fprintf(fd, "align = max(align, localign);\n"); |
783 | fprintf(fd, "\n"); |
784 | print_tabs(1, fd); |
785 | fprintf(fd, "localign = "); |
786 | if(print_type_alignment(((field_t*)td->fields.array[1])->type, |
3261899d |
787 | fd, 0, basename, "array[0]", "obj->")) return 1; |
a3e6ce64 |
788 | fprintf(fd, ";\n"); |
789 | print_tabs(1, fd); |
790 | fprintf(fd, "align = max(align, localign);\n"); |
791 | fprintf(fd, "\n"); |
792 | print_tabs(1, fd); |
793 | fprintf(fd, "return align;\n"); |
794 | break; |
795 | case STRUCT: |
796 | /* Function header */ |
797 | fprintf(fd, "static inline size_t lttng_get_alignment_struct_%s(\n", |
798 | basename); |
799 | print_tabs(2, fd); |
2e415130 |
800 | if(print_type(td, fd, 0, basename, "")) return 1; |
a3e6ce64 |
801 | fprintf(fd, " *obj)\n"); |
802 | fprintf(fd, "{\n"); |
803 | print_tabs(1, fd); |
804 | fprintf(fd, "size_t align=0, localign;"); |
805 | fprintf(fd, "\n"); |
806 | for(unsigned int i=0;i<td->fields.position;i++){ |
807 | field_t *field = (field_t*)(td->fields.array[i]); |
808 | type_descriptor_t *type = field->type; |
809 | print_tabs(1, fd); |
810 | fprintf(fd, "localign = "); |
3261899d |
811 | if(print_type_alignment(type, fd, 0, basename, field->name, "obj->")) |
812 | return 1; |
a3e6ce64 |
813 | fprintf(fd, ";\n"); |
814 | print_tabs(1, fd); |
815 | fprintf(fd, "align = max(align, localign);\n"); |
816 | fprintf(fd, "\n"); |
817 | } |
818 | print_tabs(1, fd); |
819 | fprintf(fd, "return align;\n"); |
820 | |
a67cd958 |
821 | break; |
a3e6ce64 |
822 | case UNION: |
823 | /* Function header */ |
824 | fprintf(fd, "static inline size_t lttng_get_alignment_union_%s(\n", |
825 | basename); |
826 | print_tabs(2, fd); |
2e415130 |
827 | if(print_type(td, fd, 0, basename, "")) return 1; |
a3e6ce64 |
828 | fprintf(fd, " *obj)\n"); |
829 | fprintf(fd, "{\n"); |
830 | print_tabs(1, fd); |
831 | fprintf(fd, "size_t align=0, localign;"); |
832 | fprintf(fd, "\n"); |
833 | for(unsigned int i=0;i<td->fields.position;i++){ |
834 | field_t *field = (field_t*)(td->fields.array[i]); |
835 | type_descriptor_t *type = field->type; |
836 | print_tabs(1, fd); |
837 | fprintf(fd, "localign = "); |
3261899d |
838 | if(print_type_alignment(type, fd, 0, basename, field->name, "obj->")) |
839 | return 1; |
a3e6ce64 |
840 | fprintf(fd, ";\n"); |
841 | print_tabs(1, fd); |
842 | fprintf(fd, "align = max(align, localign);\n"); |
843 | fprintf(fd, "\n"); |
844 | } |
845 | print_tabs(1, fd); |
846 | fprintf(fd, "return align;\n"); |
847 | |
848 | break; |
849 | case ARRAY: |
850 | /* Function header */ |
851 | fprintf(fd, "static inline size_t lttng_get_alignment_array_%s(\n", |
852 | basename); |
853 | print_tabs(2, fd); |
2e415130 |
854 | if(print_type(td, fd, 0, basename, "")) return 1; |
a3e6ce64 |
855 | fprintf(fd, " obj)\n"); |
856 | fprintf(fd, "{\n"); |
857 | print_tabs(1, fd); |
858 | fprintf(fd, "return \n"); |
859 | if(print_type_alignment(((field_t*)td->fields.array[0])->type, |
3261899d |
860 | fd, 0, basename, "", "obj[0]")) |
861 | return 1; |
a3e6ce64 |
862 | fprintf(fd, ";\n"); |
863 | break; |
864 | default: |
71e09db9 |
865 | dprintf("print_type_alignment_fct : type has no alignment function.\n"); |
34c1d1b5 |
866 | return 0; |
a3e6ce64 |
867 | break; |
868 | } |
869 | |
870 | |
871 | /* Function footer */ |
872 | fprintf(fd, "}\n"); |
873 | fprintf(fd, "\n"); |
874 | |
2e415130 |
875 | return 0; |
a3e6ce64 |
876 | } |
877 | |
878 | /* print type write function. |
879 | * |
880 | * Copied from construct_types_and_fields in LTTV facility.c |
881 | * |
882 | * basename is the name which identifies the type (along with a prefix |
883 | * (possibly)). */ |
884 | |
885 | int print_type_write_fct(type_descriptor_t * td, FILE *fd, unsigned int tabs, |
886 | char *nest_name, char *field_name) |
887 | { |
888 | char basename[PATH_MAX]; |
889 | unsigned int basename_len = 0; |
890 | |
891 | strncpy(basename, nest_name, PATH_MAX); |
892 | basename_len = strlen(basename); |
893 | |
894 | /* For a named type, we use the type_name directly */ |
895 | if(td->type_name != NULL) { |
896 | strncpy(basename, td->type_name, PATH_MAX); |
897 | basename_len = strlen(basename); |
898 | } else { |
899 | /* For a unnamed type, there must be a field name, except for |
900 | * the array. */ |
901 | if((basename_len != 0) |
902 | && (basename[basename_len-1] != '_' |
903 | && (field_name[0] != '\0'))) { |
904 | strncat(basename, "_", PATH_MAX - basename_len); |
905 | basename_len = strlen(basename); |
906 | } |
907 | strncat(basename, field_name, PATH_MAX - basename_len); |
908 | } |
909 | |
34c1d1b5 |
910 | switch(td->type) { |
911 | case SEQUENCE: |
912 | case STRUCT: |
913 | case UNION: |
914 | case ARRAY: |
915 | break; |
916 | default: |
71e09db9 |
917 | dprintf("print_type_write_fct : type has no write function.\n"); |
34c1d1b5 |
918 | return 0; |
919 | break; |
920 | } |
921 | |
a3e6ce64 |
922 | /* Print header */ |
923 | switch(td->type) { |
a67cd958 |
924 | case SEQUENCE: |
34c1d1b5 |
925 | fprintf(fd, "static inline void lttng_write_sequence_%s(\n", |
a3e6ce64 |
926 | basename); |
a67cd958 |
927 | break; |
a3e6ce64 |
928 | case STRUCT: |
6e27ba88 |
929 | fprintf(fd, "static inline void lttng_write_struct_%s(\n", basename); |
a67cd958 |
930 | break; |
a3e6ce64 |
931 | case UNION: |
6e27ba88 |
932 | fprintf(fd, "static inline void lttng_write_union_%s(\n", basename); |
a3e6ce64 |
933 | break; |
934 | case ARRAY: |
6e27ba88 |
935 | fprintf(fd, "static inline void lttng_write_array_%s(\n", basename); |
a3e6ce64 |
936 | break; |
937 | default: |
938 | printf("print_type_write_fct : type has no write function.\n"); |
a67cd958 |
939 | break; |
a67cd958 |
940 | } |
941 | |
a3e6ce64 |
942 | print_tabs(2, fd); |
943 | fprintf(fd, "void *buffer,\n"); |
944 | print_tabs(2, fd); |
945 | fprintf(fd, "size_t *to_base,\n"); |
946 | print_tabs(2, fd); |
947 | fprintf(fd, "size_t *to,\n"); |
948 | print_tabs(2, fd); |
949 | fprintf(fd, "void **from,\n"); |
950 | print_tabs(2, fd); |
951 | fprintf(fd, "size_t *len,\n"); |
952 | print_tabs(2, fd); |
2e415130 |
953 | if(print_type(td, fd, 0, basename, "")) return 1; |
a3e6ce64 |
954 | |
955 | switch(td->type) { |
956 | case SEQUENCE: |
957 | fprintf(fd, " *obj)\n"); |
958 | break; |
959 | case STRUCT: |
960 | fprintf(fd, " *obj)\n"); |
961 | break; |
962 | case UNION: |
963 | fprintf(fd, " *obj)\n"); |
964 | break; |
965 | case ARRAY: |
966 | fprintf(fd, " obj)\n"); |
967 | break; |
968 | default: |
969 | printf("print_type_write_fct : type has no write function.\n"); |
970 | break; |
971 | } |
972 | |
973 | fprintf(fd, "{\n"); |
974 | print_tabs(1, fd); |
975 | fprintf(fd, "size_t align, size;\n"); |
976 | fprintf(fd, "\n"); |
977 | |
978 | switch(td->type) { |
979 | case SEQUENCE: |
980 | case STRING: |
981 | print_tabs(1, fd); |
982 | fprintf(fd, "/* Flush pending memcpy */\n"); |
983 | print_tabs(1, fd); |
984 | fprintf(fd, "if(*len != 0) {\n"); |
985 | print_tabs(2, fd); |
986 | fprintf(fd, "if(buffer != NULL)\n"); |
987 | print_tabs(3, fd); |
988 | fprintf(fd, "memcpy(buffer+*to_base+*to, *from, *len);\n"); |
989 | print_tabs(1, fd); |
990 | fprintf(fd, "}\n"); |
991 | print_tabs(1, fd); |
992 | fprintf(fd, "*to += *len;\n"); |
993 | print_tabs(1, fd); |
994 | fprintf(fd, "*len = 0;\n"); |
995 | fprintf(fd, "\n"); |
996 | break; |
997 | case STRUCT: |
998 | case UNION: |
999 | case ARRAY: |
1000 | break; |
1001 | default: |
1002 | printf("print_type_write_fct : type has no write function.\n"); |
1003 | break; |
1004 | } |
1005 | |
1006 | print_tabs(1, fd); |
34c1d1b5 |
1007 | fprintf(fd, "align = "); |
3261899d |
1008 | if(print_type_alignment(td, fd, 0, basename, "", "obj->")) return 1; |
a3e6ce64 |
1009 | fprintf(fd, ";\n"); |
1010 | fprintf(fd, "\n"); |
1011 | print_tabs(1, fd); |
1012 | fprintf(fd, "if(*len == 0) {\n"); |
1013 | print_tabs(2, fd); |
1014 | fprintf(fd, "*to += ltt_align(*to, align); /* align output */\n"); |
1015 | print_tabs(1, fd); |
1016 | fprintf(fd, "} else {\n"); |
1017 | print_tabs(2, fd); |
1018 | fprintf(fd, "*len += ltt_align(*to+*len, align); /* alignment, ok to do a memcpy of it */\n"); |
1019 | print_tabs(1, fd); |
1020 | fprintf(fd, "}\n"); |
1021 | fprintf(fd, "\n"); |
1022 | |
1023 | /* First, check if the type has a fixed size. If it is the case, then the size |
1024 | * to write is know by the compiler : simply use a sizeof() */ |
1025 | if(has_type_fixed_size(td)) { |
1026 | print_tabs(1, fd); |
1027 | fprintf(fd, "/* Contains only fixed size fields : use compiler sizeof() */\n"); |
1028 | fprintf(fd, "\n"); |
1029 | print_tabs(1, fd); |
3d9b9b0c |
1030 | fprintf(fd, "size = sizeof("); |
2e415130 |
1031 | if(print_type(td, fd, 0, basename, field_name)) return 1; |
a3e6ce64 |
1032 | fprintf(fd, ");\n"); |
3d9b9b0c |
1033 | print_tabs(1, fd); |
1034 | fprintf(fd, "*len += size;\n"); |
a3e6ce64 |
1035 | } else { |
1036 | /* The type contains nested variable size subtypes : |
1037 | * we must write field by field. */ |
1038 | print_tabs(1, fd); |
1039 | fprintf(fd, "/* Contains variable sized fields : must explode the structure */\n"); |
1040 | fprintf(fd, "\n"); |
1041 | |
1042 | switch(td->type) { |
1043 | case SEQUENCE: |
1044 | print_tabs(1, fd); |
1045 | fprintf(fd, "/* Copy members */\n"); |
3261899d |
1046 | // print_tabs(1, fd); |
1047 | // fprintf(fd, "size = sizeof(\n"); |
a3e6ce64 |
1048 | if(print_type_write(((field_t*)td->fields.array[0])->type, |
3261899d |
1049 | fd, 1, basename, "len", "obj->")) return 1; |
1050 | fprintf(fd, "\n"); |
1051 | // fprintf(fd, ");\n"); |
1052 | // print_tabs(1, fd); |
1053 | // fprintf(fd, "*to += ltt_align(*to, size);\n"); |
a3e6ce64 |
1054 | print_tabs(1, fd); |
1055 | fprintf(fd, "if(buffer != NULL)\n"); |
1056 | print_tabs(2, fd); |
1057 | fprintf(fd, "memcpy(buffer+*to_base+*to, &obj->len, size);\n"); |
1058 | print_tabs(1, fd); |
1059 | fprintf(fd, "*to += size;\n"); |
1060 | fprintf(fd, "\n"); |
1061 | |
1062 | /* Write the child : varlen child or not ? */ |
1063 | if(has_type_fixed_size(((field_t*)td->fields.array[1])->type)) { |
1064 | /* Fixed size len child : use a multiplication of its size */ |
3261899d |
1065 | // print_tabs(1, fd); |
1066 | // fprintf(fd, "size = sizeof(\n"); |
a3e6ce64 |
1067 | if(print_type_write(((field_t*)td->fields.array[1])->type, |
3261899d |
1068 | fd, 1, basename, "array[0]", "obj->")) return 1; |
1069 | // fprintf(fd, ");\n"); |
1070 | // print_tabs(1, fd); |
a3e6ce64 |
1071 | fprintf(fd, "*to += ltt_align(*to, size);\n"); |
1072 | print_tabs(1, fd); |
1073 | fprintf(fd, "size = obj->len * size;\n"); |
1074 | print_tabs(1, fd); |
1075 | fprintf(fd, "if(buffer != NULL)\n"); |
1076 | print_tabs(2, fd); |
1077 | fprintf(fd, "memcpy(buffer+*to_base+*to, obj->array, size);\n"); |
1078 | print_tabs(1, fd); |
1079 | fprintf(fd, "*to += size;\n"); |
1080 | fprintf(fd, "\n"); |
1081 | } else { |
1082 | print_tabs(1, fd); |
1083 | fprintf(fd, "/* Variable length child : iter. */\n"); |
1084 | print_tabs(1, fd); |
1085 | fprintf(fd, "for(unsigned int i=0; i<obj->len; i++) {\n"); |
1086 | if(print_type_write(((field_t*)td->fields.array[1])->type, |
3261899d |
1087 | fd, 2, basename, "array[i]", "obj->")) return 1; |
a3e6ce64 |
1088 | print_tabs(1, fd); |
1089 | fprintf(fd, "}\n"); |
1090 | } |
1091 | fprintf(fd, "\n"); |
1092 | print_tabs(1, fd); |
1093 | fprintf(fd, "/* Realign the *to_base on arch size, set *to to 0 */\n"); |
1094 | print_tabs(1, fd); |
1095 | fprintf(fd, "*to = ltt_align(*to, sizeof(void *));\n"); |
1096 | print_tabs(1, fd); |
1097 | fprintf(fd, "*to_base = *to_base+*to;\n"); |
1098 | print_tabs(1, fd); |
1099 | fprintf(fd, "*to = 0;\n"); |
1100 | fprintf(fd, "\n"); |
1101 | fprintf(fd, "/* Put source *from just after the C sequence */\n"); |
1102 | print_tabs(1, fd); |
1103 | fprintf(fd, "*from = obj+1;\n"); |
1104 | break; |
1105 | case STRING: |
caabcb43 |
1106 | fprintf(fd, "size = strlen(obj) + 1; /* Include final NULL char. */\n"); |
a3e6ce64 |
1107 | print_tabs(1, fd); |
1108 | fprintf(fd, "if(buffer != NULL)\n"); |
1109 | print_tabs(2, fd); |
1110 | fprintf(fd, "memcpy(buffer+*to_base+*to, obj, size);\n"); |
1111 | print_tabs(1, fd); |
1112 | fprintf(fd, "*to += size;\n"); |
1113 | fprintf(fd, "\n"); |
1114 | print_tabs(1, fd); |
1115 | fprintf(fd, "/* Realign the *to_base on arch size, set *to to 0 */\n"); |
1116 | print_tabs(1, fd); |
1117 | fprintf(fd, "*to = ltt_align(*to, sizeof(void *));\n"); |
1118 | print_tabs(1, fd); |
1119 | fprintf(fd, "*to_base = *to_base+*to;\n"); |
1120 | print_tabs(1, fd); |
1121 | fprintf(fd, "*to = 0;\n"); |
1122 | fprintf(fd, "\n"); |
1123 | fprintf(fd, "/* Put source *from just after the C sequence */\n"); |
1124 | print_tabs(1, fd); |
1125 | fprintf(fd, "*from = obj+1;\n"); |
1126 | break; |
1127 | case STRUCT: |
1128 | for(unsigned int i=0;i<td->fields.position;i++){ |
1129 | field_t *field = (field_t*)(td->fields.array[i]); |
1130 | type_descriptor_t *type = field->type; |
1131 | if(print_type_write(type, |
3261899d |
1132 | fd, 1, basename, field->name, "obj->")) return 1; |
a3e6ce64 |
1133 | fprintf(fd, "\n"); |
1134 | } |
1135 | break; |
1136 | case UNION: |
1137 | printf("ERROR : A union CANNOT contain a variable size child.\n"); |
1138 | return 1; |
1139 | break; |
1140 | case ARRAY: |
1141 | /* Write the child : varlen child or not ? */ |
1142 | if(has_type_fixed_size(((field_t*)td->fields.array[0])->type)) { |
1143 | /* Error : if an array has a variable size, then its child must also |
1144 | * have a variable size. */ |
1145 | assert(0); |
1146 | } else { |
1147 | print_tabs(1, fd); |
1148 | fprintf(fd, "/* Variable length child : iter. */\n"); |
1149 | print_tabs(1, fd); |
1150 | fprintf(fd, "for(unsigned int i=0; i<LTTNG_ARRAY_SIZE_%s; i++) {\n", basename); |
3261899d |
1151 | if(print_type_write(((field_t*)td->fields.array[0])->type, |
1152 | fd, 2, basename, "", "obj->array[i]")) return 1; |
a3e6ce64 |
1153 | print_tabs(1, fd); |
1154 | fprintf(fd, "}\n"); |
1155 | } |
1156 | break; |
1157 | default: |
1158 | printf("print_type_write_fct : type has no write function.\n"); |
1159 | break; |
1160 | } |
1161 | |
1162 | |
1163 | } |
1164 | |
1165 | |
1166 | /* Function footer */ |
1167 | fprintf(fd, "}\n"); |
1168 | fprintf(fd, "\n"); |
a67cd958 |
1169 | return 0; |
1170 | } |
1171 | |
1172 | |
1173 | |
47299663 |
1174 | /* Print the logging function of an event. This is the core of genevent */ |
a3e6ce64 |
1175 | int print_event_logging_function(char *basename, facility_t *fac, |
1176 | event_t *event, FILE *fd) |
47299663 |
1177 | { |
1178 | fprintf(fd, "static inline void trace_%s(\n", basename); |
3d9b9b0c |
1179 | int has_argument = 0; |
1180 | |
1181 | /* Does it support per trace tracing ? */ |
1182 | if(event->per_trace) { |
1183 | print_tabs(2, fd); |
1184 | fprintf(fd, "struct ltt_trace_struct *dest_trace"); |
1185 | has_argument = 1; |
1186 | } |
1187 | |
1188 | /* Does it support per tracefile tracing ? */ |
1189 | if(event->per_tracefile) { |
1190 | if(has_argument) { |
1191 | fprintf(fd, ","); |
1192 | fprintf(fd, "\n"); |
1193 | } |
1194 | fprintf(fd, "unsigned int tracefile_index"); |
1195 | has_argument = 1; |
1196 | } |
1197 | |
47299663 |
1198 | for(unsigned int j = 0; j < event->fields.position; j++) { |
1199 | /* For each field, print the function argument */ |
1200 | field_t *f = (field_t*)event->fields.array[j]; |
1201 | type_descriptor_t *t = f->type; |
3d9b9b0c |
1202 | if(has_argument) { |
47299663 |
1203 | fprintf(fd, ","); |
1204 | fprintf(fd, "\n"); |
1205 | } |
3d9b9b0c |
1206 | if(print_arg(t, fd, 2, basename, f->name)) return 1; |
1207 | has_argument = 1; |
47299663 |
1208 | } |
3d9b9b0c |
1209 | if(!has_argument) { |
47299663 |
1210 | print_tabs(2, fd); |
1211 | fprintf(fd, "void"); |
1212 | } |
1213 | fprintf(fd,")\n"); |
71e09db9 |
1214 | fprintf(fd, |
1215 | "#if (!defined(CONFIG_LTT) || !defined(CONFIG_LTT_FACILITY_%s))\n", |
1216 | fac->capname); |
47299663 |
1217 | fprintf(fd, "{\n"); |
1218 | fprintf(fd, "}\n"); |
1219 | fprintf(fd,"#else\n"); |
1220 | fprintf(fd, "{\n"); |
7e97b039 |
1221 | /* Print the function variables */ |
a67cd958 |
1222 | print_tabs(1, fd); |
a3e6ce64 |
1223 | fprintf(fd, "unsigned int index;\n"); |
1224 | print_tabs(1, fd); |
1225 | fprintf(fd, "struct ltt_channel_struct *channel;\n"); |
1226 | print_tabs(1, fd); |
1227 | fprintf(fd, "struct ltt_trace_struct *trace;\n"); |
1228 | print_tabs(1, fd); |
1229 | fprintf(fd, "struct rchan_buf *relayfs_buf;\n"); |
1230 | print_tabs(1, fd); |
1231 | fprintf(fd, "void *buffer = NULL;\n"); |
1232 | print_tabs(1, fd); |
1233 | fprintf(fd, "size_t to_base = 0; /* The buffer is allocated on arch_size alignment */\n"); |
1234 | print_tabs(1, fd); |
1235 | fprintf(fd, "size_t to = 0;\n"); |
1236 | print_tabs(1, fd); |
1237 | fprintf(fd, "void *from;"); |
1238 | print_tabs(1, fd); |
1239 | fprintf(fd, "size_t len = 0;\n"); |
30d72138 |
1240 | print_tabs(1, fd); |
6e27ba88 |
1241 | fprintf(fd, "size_t reserve_size;\n"); |
1242 | print_tabs(1, fd); |
a3e6ce64 |
1243 | fprintf(fd, "size_t slot_size;\n"); |
30d72138 |
1244 | print_tabs(1, fd); |
a3e6ce64 |
1245 | fprintf(fd, "cycles_t tsc;\n"); |
30d72138 |
1246 | print_tabs(1, fd); |
a3e6ce64 |
1247 | fprintf(fd, "size_t before_hdr_pad, size_t after_hdr_pad;\n"); |
1248 | fprintf(fd, "\n"); |
7e97b039 |
1249 | |
a3e6ce64 |
1250 | print_tabs(1, fd); |
1251 | fprintf(fd, "if(ltt_traces.num_active_traces == 0) return;\n"); |
1252 | fprintf(fd, "\n"); |
1253 | |
a67cd958 |
1254 | /* Calculate event variable len + event data alignment offset. |
7e97b039 |
1255 | * Assume that the padding for alignment starts at a void* |
a67cd958 |
1256 | * address. |
1257 | * This excludes the header size and alignment. */ |
1258 | |
a3e6ce64 |
1259 | print_tabs(1, fd); |
1260 | fprintf(fd, "/* For each field, calculate the field size. */\n"); |
1261 | print_tabs(1, fd); |
1262 | fprintf(fd, "/* size = to_base + to + len */\n"); |
1263 | print_tabs(1, fd); |
30d72138 |
1264 | fprintf(fd, "/* Assume that the padding for alignment starts at a\n"); |
a3e6ce64 |
1265 | print_tabs(1, fd); |
30d72138 |
1266 | fprintf(fd, " * sizeof(void *) address. */\n"); |
a3e6ce64 |
1267 | fprintf(fd, "\n"); |
a67cd958 |
1268 | |
a3e6ce64 |
1269 | for(unsigned int i=0;i<event->fields.position;i++){ |
2e415130 |
1270 | field_t *field = (field_t*)(event->fields.array[i]); |
a3e6ce64 |
1271 | type_descriptor_t *type = field->type; |
1272 | if(print_type_write(type, |
3261899d |
1273 | fd, 1, basename, field->name, "")) return 1; |
a3e6ce64 |
1274 | fprintf(fd, "\n"); |
a67cd958 |
1275 | } |
6e27ba88 |
1276 | print_tabs(1, fd); |
1277 | fprintf(fd, "reserve_size = to_base + to + len;\n"); |
1278 | print_tabs(1, fd); |
1279 | fprintf(fd, "to_base = to = len = 0;\n"); |
30d72138 |
1280 | fprintf(fd, "\n"); |
47299663 |
1281 | |
7e97b039 |
1282 | /* Take locks : make sure the trace does not vanish while we write on |
1283 | * it. A simple preemption disabling is enough (using rcu traces). */ |
a3e6ce64 |
1284 | print_tabs(1, fd); |
1285 | fprintf(fd, "preempt_disable();\n"); |
1286 | print_tabs(1, fd); |
1287 | fprintf(fd, "ltt_nesting[smp_processor_id()]++;\n"); |
1288 | |
1289 | /* Get facility index */ |
1290 | |
1291 | if(event->per_tracefile) { |
1292 | print_tabs(1, fd); |
1293 | fprintf(fd, "index = tracefile_index;\n"); |
1294 | } else { |
1295 | print_tabs(1, fd); |
1296 | fprintf(fd, |
1297 | "index = ltt_get_index_from_facility(ltt_facility_%s_%X,\n"\ |
30d72138 |
1298 | "\t\t\t\t\t\tevent_%s);\n", |
a3e6ce64 |
1299 | fac->name, fac->checksum, event->name); |
1300 | } |
1301 | fprintf(fd,"\n"); |
1302 | |
7e97b039 |
1303 | |
1304 | /* For each trace */ |
a3e6ce64 |
1305 | print_tabs(1, fd); |
1306 | fprintf(fd, "list_for_each_entry_rcu(trace, <t_traces.head, list) {\n"); |
1307 | print_tabs(2, fd); |
1308 | fprintf(fd, "if(!trace->active) continue;\n\n"); |
1309 | |
1310 | if(event->per_trace) { |
1311 | print_tabs(2, fd); |
1312 | fprintf(fd, "if(dest_trace != trace) continue;\n\n"); |
1313 | } |
1314 | |
1315 | print_tabs(2, fd); |
2e415130 |
1316 | fprintf(fd, "channel = ltt_get_channel_from_index(trace, index);\n"); |
a3e6ce64 |
1317 | print_tabs(2, fd); |
1318 | fprintf(fd, "relayfs_buf = channel->rchan->buf[channel->rchan->buf->cpu];\n"); |
1319 | fprintf(fd, "\n"); |
1320 | |
7e97b039 |
1321 | |
1322 | /* Relay reserve */ |
a3e6ce64 |
1323 | /* If error, increment event lost counter (done by ltt_reserve_slot) and |
1324 | * return */ |
1325 | print_tabs(2, fd); |
1326 | fprintf(fd, "slot_size = 0;\n"); |
1327 | print_tabs(2, fd); |
30d72138 |
1328 | fprintf(fd, "buffer = ltt_reserve_slot(trace, relayfs_buf,\n"); |
1329 | print_tabs(3, fd); |
6e27ba88 |
1330 | fprintf(fd, "reserve_size, &slot_size, &tsc,\n"); |
30d72138 |
1331 | print_tabs(3, fd); |
1332 | fprintf(fd, "&before_hdr_pad, &after_hdr_pad);\n"); |
a3e6ce64 |
1333 | /* If error, return */ |
1334 | print_tabs(2, fd); |
1335 | fprintf(fd, "if(!buffer) return;\n\n"); |
7e97b039 |
1336 | |
a3e6ce64 |
1337 | /* write data : assume stack alignment is the same as struct alignment. */ |
1338 | |
1339 | for(unsigned int i=0;i<event->fields.position;i++){ |
2e415130 |
1340 | field_t *field = (field_t*)(event->fields.array[i]); |
a3e6ce64 |
1341 | type_descriptor_t *type = field->type; |
1342 | |
1343 | /* Set from */ |
30d72138 |
1344 | print_tabs(2, fd); |
1345 | switch(type->type) { |
1346 | case SEQUENCE: |
1347 | case UNION: |
1348 | case ARRAY: |
1349 | case STRUCT: |
1350 | case STRING: |
1351 | fprintf(fd, "from = %s;\n", field->name); |
1352 | break; |
1353 | default: |
1354 | fprintf(fd, "from = &%s;\n", field->name); |
1355 | break; |
1356 | } |
1357 | |
a3e6ce64 |
1358 | |
1359 | if(print_type_write(type, |
3261899d |
1360 | fd, 2, basename, field->name, "")) return 1; |
a3e6ce64 |
1361 | fprintf(fd, "\n"); |
7e97b039 |
1362 | |
a3e6ce64 |
1363 | /* Don't forget to flush pending memcpy */ |
1364 | print_tabs(2, fd); |
1365 | fprintf(fd, "/* Flush pending memcpy */\n"); |
1366 | print_tabs(2, fd); |
1367 | fprintf(fd, "if(len != 0) {\n"); |
1368 | print_tabs(3, fd); |
1369 | fprintf(fd, "memcpy(buffer+to_base+to, from, len);\n"); |
1370 | print_tabs(3, fd); |
1371 | fprintf(fd, "to += len;\n"); |
1372 | //print_tabs(3, fd); |
1373 | //fprintf(fd, "from += len;\n"); |
1374 | print_tabs(3, fd); |
1375 | fprintf(fd, "len = 0;\n"); |
1376 | print_tabs(2, fd); |
1377 | fprintf(fd, "}\n"); |
1378 | fprintf(fd, "\n"); |
1379 | } |
1380 | |
1381 | |
7e97b039 |
1382 | /* commit */ |
a3e6ce64 |
1383 | print_tabs(2, fd); |
1384 | fprintf(fd, "ltt_commit_slot(relayfs_buf, buffer, slot_size);\n\n"); |
7e97b039 |
1385 | |
a3e6ce64 |
1386 | print_tabs(1, fd); |
1387 | fprintf(fd, "}\n\n"); |
1388 | |
7e97b039 |
1389 | /* Release locks */ |
a3e6ce64 |
1390 | print_tabs(1, fd); |
1391 | fprintf(fd, "ltt_nesting[smp_processor_id()]--;\n"); |
1392 | print_tabs(1, fd); |
1393 | fprintf(fd, "preempt_enable_no_resched();\n"); |
2d2d14a7 |
1394 | |
47299663 |
1395 | fprintf(fd, "}\n"); |
71e09db9 |
1396 | fprintf(fd, "#endif //(!defined(CONFIG_LTT) || !defined(CONFIG_LTT_FACILITY_%s))\n\n", |
1397 | fac->capname); |
47299663 |
1398 | return 0; |
1399 | } |
2d2d14a7 |
1400 | |
1401 | |
1402 | /* ltt-facility-name.h : main logging header. |
1403 | * log_header */ |
1404 | |
1405 | void print_log_header_head(facility_t *fac, FILE *fd) |
1406 | { |
1407 | fprintf(fd, "#ifndef _LTT_FACILITY_%s_H_\n", fac->capname); |
1408 | fprintf(fd, "#define _LTT_FACILITY_%s_H_\n\n", fac->capname); |
3d9b9b0c |
1409 | fprintf(fd, "#include <linux/types.h>\n"); |
1410 | fprintf(fd, "#include <linux/ltt/ltt-facility-id-%s.h>\n", fac->name); |
1411 | fprintf(fd, "#include <linux/ltt-core.h>\n"); |
47299663 |
1412 | fprintf(fd, "\n"); |
2d2d14a7 |
1413 | } |
1414 | |
1415 | |
1416 | |
2d2d14a7 |
1417 | int print_log_header_types(facility_t *fac, FILE *fd) |
1418 | { |
1419 | sequence_t *types = &fac->named_types.values; |
1420 | fprintf(fd, "/* Named types */\n"); |
1421 | fprintf(fd, "\n"); |
1422 | |
1423 | for(unsigned int i = 0; i < types->position; i++) { |
1424 | /* For each named type, print the definition */ |
1425 | if((print_type_declaration(types->array[i], fd, |
1426 | 0, "", ""))) return 1; |
34c1d1b5 |
1427 | /* Print also the align function */ |
1428 | if((print_type_alignment_fct(types->array[i], fd, |
1429 | 0, "", ""))) return 1; |
1430 | /* Print also the write function */ |
1431 | if((print_type_write_fct(types->array[i], fd, |
1432 | 0, "", ""))) return 1; |
2d2d14a7 |
1433 | } |
1434 | return 0; |
1435 | } |
1436 | |
1437 | int print_log_header_events(facility_t *fac, FILE *fd) |
1438 | { |
47299663 |
1439 | sequence_t *events = &fac->events; |
1440 | char basename[PATH_MAX]; |
1441 | unsigned int facname_len; |
1442 | |
1443 | strncpy(basename, fac->name, PATH_MAX); |
1444 | facname_len = strlen(basename); |
1445 | strncat(basename, "_", PATH_MAX-facname_len); |
1446 | facname_len = strlen(basename); |
1447 | |
1448 | for(unsigned int i = 0; i < events->position; i++) { |
1449 | event_t *event = (event_t*)events->array[i]; |
1450 | strncpy(&basename[facname_len], event->name, PATH_MAX-facname_len); |
1451 | |
1452 | /* For each event, print structure, and then logging function */ |
1453 | fprintf(fd, "/* Event %s structures */\n", |
1454 | event->name); |
1455 | for(unsigned int j = 0; j < event->fields.position; j++) { |
1456 | /* For each unnamed type, print the definition */ |
1457 | field_t *f = (field_t*)event->fields.array[j]; |
1458 | type_descriptor_t *t = f->type; |
34c1d1b5 |
1459 | if(t->type_name == NULL) { |
47299663 |
1460 | if((print_type_declaration(t, fd, 0, basename, f->name))) return 1; |
34c1d1b5 |
1461 | /* Print also the align function */ |
1462 | if((print_type_alignment_fct(t, fd, 0, basename, f->name))) return 1; |
1463 | /* Print also the write function */ |
1464 | if((print_type_write_fct(t, fd, 0, basename, f->name))) return 1; |
1465 | } |
47299663 |
1466 | } |
34c1d1b5 |
1467 | |
47299663 |
1468 | fprintf(fd, "\n"); |
2d2d14a7 |
1469 | |
47299663 |
1470 | fprintf(fd, "/* Event %s logging function */\n", |
1471 | event->name); |
1472 | |
a3e6ce64 |
1473 | if(print_event_logging_function(basename, fac, event, fd)) return 1; |
47299663 |
1474 | |
1475 | fprintf(fd, "\n"); |
1476 | } |
1477 | |
2d2d14a7 |
1478 | return 0; |
1479 | } |
1480 | |
1481 | |
1482 | void print_log_header_tail(facility_t *fac, FILE *fd) |
1483 | { |
1484 | fprintf(fd, "#endif //_LTT_FACILITY_%s_H_\n",fac->capname); |
1485 | } |
1486 | |
1487 | int print_log_header(facility_t *fac) |
1488 | { |
1489 | char filename[PATH_MAX]; |
1490 | unsigned int filename_size = 0; |
1491 | FILE *fd; |
1492 | dprintf("%s\n", fac->name); |
1493 | |
1494 | strcpy(filename, "ltt-facility-"); |
1495 | filename_size = strlen(filename); |
1496 | |
1497 | strncat(filename, fac->name, PATH_MAX - filename_size); |
1498 | filename_size = strlen(filename); |
1499 | |
1500 | strncat(filename, ".h", PATH_MAX - filename_size); |
1501 | filename_size = strlen(filename); |
1502 | |
1503 | |
1504 | fd = fopen(filename, "w"); |
1505 | if(fd == NULL) { |
1506 | printf("Error opening file %s for writing : %s\n", |
1507 | filename, strerror(errno)); |
1508 | return errno; |
1509 | } |
1510 | |
1511 | /* Print file head */ |
1512 | print_log_header_head(fac, fd); |
1513 | |
1514 | /* print named types in declaration order */ |
1515 | if(print_log_header_types(fac, fd)) return 1; |
1516 | |
1517 | /* Print events */ |
1518 | if(print_log_header_events(fac, fd)) return 1; |
1519 | |
1520 | /* Print file tail */ |
1521 | print_log_header_tail(fac, fd); |
1522 | |
1523 | |
1524 | fclose(fd); |
1525 | |
1526 | return 0; |
1527 | } |
1528 | |
1529 | |
1530 | /* ltt-facility-id-name.h : facility id. |
1531 | * log_id_header */ |
1532 | int print_id_header(facility_t *fac) |
1533 | { |
1534 | char filename[PATH_MAX]; |
1535 | unsigned int filename_size = 0; |
1536 | FILE *fd; |
71e09db9 |
1537 | char basename[PATH_MAX]; |
1538 | char basename_len = 0; |
1539 | |
2d2d14a7 |
1540 | dprintf("%s\n", fac->name); |
1541 | |
1542 | strcpy(filename, "ltt-facility-id-"); |
1543 | filename_size = strlen(filename); |
1544 | |
1545 | strncat(filename, fac->name, PATH_MAX - filename_size); |
1546 | filename_size = strlen(filename); |
1547 | |
1548 | strncat(filename, ".h", PATH_MAX - filename_size); |
1549 | filename_size = strlen(filename); |
1550 | |
1551 | |
1552 | fd = fopen(filename, "w"); |
1553 | if(fd == NULL) { |
1554 | printf("Error opening file %s for writing : %s\n", |
1555 | filename, strerror(errno)); |
1556 | return errno; |
1557 | } |
1558 | |
71e09db9 |
1559 | fprintf(fd, "#ifndef _LTT_FACILITY_ID_%s_H_\n",fac->capname); |
1560 | fprintf(fd, "#define _LTT_FACILITY_ID_%s_H_\n\n",fac->capname); |
1561 | fprintf(fd, "#ifdef CONFIG_LTT\n"); |
1562 | |
1563 | fprintf(fd,"#include <linux/ltt-facilities.h>\n\n"); |
1564 | |
1565 | fprintf(fd,"/**** facility handle ****/\n\n"); |
1566 | fprintf(fd,"extern ltt_facility_t ltt_facility_%s_%X;\n", |
1567 | fac->name, fac->checksum); |
1568 | fprintf(fd,"extern ltt_facility_t ltt_facility_%s;\n\n\n",fac->name); |
1569 | |
1570 | strncpy(basename, fac->name, PATH_MAX); |
1571 | basename_len = strlen(basename); |
1572 | strncat(basename, "_", PATH_MAX - basename_len); |
1573 | basename_len++; |
1574 | |
1575 | fprintf(fd,"/**** event index ****/\n\n"); |
1576 | fprintf(fd,"enum %s_event {\n",fac->name); |
1577 | |
1578 | for(unsigned int i = 0; i < fac->events.position; i++) { |
1579 | event_t *event = (event_t*)fac->events.array[i]; |
1580 | strncpy(basename+basename_len, event->name, PATH_MAX-basename_len); |
1581 | print_tabs(1, fd); |
1582 | fprintf(fd, "event_%s,\n", basename); |
1583 | } |
1584 | print_tabs(1, fd); |
1585 | fprintf(fd, "facility_%s_num_events\n", fac->name); |
1586 | fprintf(fd, "};\n"); |
1587 | fprintf(fd, "\n"); |
1588 | |
1589 | |
1590 | fprintf(fd, "#endif //CONFIG_LTT\n"); |
1591 | fprintf(fd, "#endif //_LTT_FACILITY_ID_%s_H_\n",fac->capname); |
1592 | |
1593 | |
2d2d14a7 |
1594 | fclose(fd); |
1595 | |
1596 | return 0; |
1597 | } |
1598 | |
1599 | |
1600 | /* ltt-facility-loader-name.h : facility specific loader info. |
1601 | * loader_header */ |
1602 | int print_loader_header(facility_t *fac) |
1603 | { |
1604 | char filename[PATH_MAX]; |
1605 | unsigned int filename_size = 0; |
1606 | FILE *fd; |
1607 | dprintf("%s\n", fac->name); |
1608 | |
1609 | strcpy(filename, "ltt-facility-loader-"); |
1610 | filename_size = strlen(filename); |
1611 | |
1612 | strncat(filename, fac->name, PATH_MAX - filename_size); |
1613 | filename_size = strlen(filename); |
1614 | |
1615 | strncat(filename, ".h", PATH_MAX - filename_size); |
1616 | filename_size = strlen(filename); |
1617 | |
1618 | |
1619 | fd = fopen(filename, "w"); |
1620 | if(fd == NULL) { |
1621 | printf("Error opening file %s for writing : %s\n", |
1622 | filename, strerror(errno)); |
1623 | return errno; |
1624 | } |
1625 | |
71e09db9 |
1626 | fprintf(fd, "#ifndef _LTT_FACILITY_LOADER_%s_H_\n", fac->capname); |
1627 | fprintf(fd, "#define _LTT_FACILITY_LOADER_%s_H_\n\n", fac->capname); |
1628 | fprintf(fd, "#ifdef CONFIG_LTT\n\n"); |
1629 | fprintf(fd,"#include <linux/ltt-facilities.h>\n"); |
1630 | fprintf(fd,"#include <linux/ltt/ltt-facility-id-%s.h>\n\n", |
1631 | fac->name); |
1632 | fprintf(fd,"ltt_facility_t\tltt_facility_%s;\n", fac->name); |
1633 | fprintf(fd,"ltt_facility_t\tltt_facility_%s_%X;\n\n", |
1634 | fac->name, fac->checksum); |
1635 | |
1636 | fprintf(fd,"#define LTT_FACILITY_SYMBOL\t\t\t\t\t\t\tltt_facility_%s\n", |
1637 | fac->name); |
1638 | fprintf(fd,"#define LTT_FACILITY_CHECKSUM_SYMBOL\t\tltt_facility_%s_%X\n", |
1639 | fac->name, fac->checksum); |
1640 | fprintf(fd,"#define LTT_FACILITY_CHECKSUM\t\t\t\t\t\t0x%X\n", fac->checksum); |
1641 | fprintf(fd,"#define LTT_FACILITY_NAME\t\t\t\t\t\t\t\t\"%s\"\n", fac->name); |
1642 | fprintf(fd,"#define LTT_FACILITY_NUM_EVENTS\t\t\t\t\tfacility_%s_num_events\n\n", |
1643 | fac->name); |
1644 | fprintf(fd, "#endif //CONFIG_LTT\n\n"); |
1645 | fprintf(fd, "#endif //_LTT_FACILITY_LOADER_%s_H_\n", fac->capname); |
1646 | |
2d2d14a7 |
1647 | fclose(fd); |
1648 | |
1649 | return 0; |
1650 | } |
1651 | |
1652 | /* ltt-facility-loader-name.c : generic faciilty loader |
1653 | * loader_c */ |
1654 | int print_loader_c(facility_t *fac) |
1655 | { |
1656 | char filename[PATH_MAX]; |
1657 | unsigned int filename_size = 0; |
1658 | FILE *fd; |
1659 | dprintf("%s\n", fac->name); |
1660 | |
1661 | strcpy(filename, "ltt-facility-loader-"); |
1662 | filename_size = strlen(filename); |
1663 | |
1664 | strncat(filename, fac->name, PATH_MAX - filename_size); |
1665 | filename_size = strlen(filename); |
1666 | |
1667 | strncat(filename, ".c", PATH_MAX - filename_size); |
1668 | filename_size = strlen(filename); |
1669 | |
1670 | |
1671 | fd = fopen(filename, "w"); |
1672 | if(fd == NULL) { |
1673 | printf("Error opening file %s for writing : %s\n", |
1674 | filename, strerror(errno)); |
1675 | return errno; |
1676 | } |
1677 | |
71e09db9 |
1678 | fprintf(fd, "/*\n"); |
1679 | fprintf(fd, " * ltt-facility-loader-%s.c\n", fac->name); |
1680 | fprintf(fd, " *\n"); |
1681 | fprintf(fd, " * (C) Copyright 2005 - \n"); |
1682 | fprintf(fd, " * Mathieu Desnoyers (mathieu.desnoyers@polymtl.ca)\n"); |
1683 | fprintf(fd, " *\n"); |
1684 | fprintf(fd, " * Contains the LTT facility loader.\n"); |
1685 | fprintf(fd, " *\n"); |
1686 | fprintf(fd, " */\n"); |
1687 | fprintf(fd, "\n"); |
1688 | fprintf(fd, "\n"); |
1689 | fprintf(fd, "#include <linux/ltt-facilities.h>\n"); |
1690 | fprintf(fd, "#include <linux/module.h>\n"); |
1691 | fprintf(fd, "#include <linux/init.h>\n"); |
1692 | fprintf(fd, "#include <linux/config.h>\n"); |
1693 | fprintf(fd, "#include \"ltt-facility-loader-%s.h\"\n", fac->name); |
1694 | fprintf(fd, "\n"); |
1695 | fprintf(fd, "\n"); |
1696 | fprintf(fd, "#ifdef CONFIG_LTT\n"); |
1697 | fprintf(fd, "\n"); |
1698 | fprintf(fd, "EXPORT_SYMBOL(LTT_FACILITY_SYMBOL);\n"); |
1699 | fprintf(fd, "EXPORT_SYMBOL(LTT_FACILITY_CHECKSUM_SYMBOL);\n"); |
1700 | fprintf(fd, "\n"); |
1701 | fprintf(fd, "static const char ltt_facility_name[] = LTT_FACILITY_NAME;\n"); |
1702 | fprintf(fd, "\n"); |
1703 | fprintf(fd, "#define SYMBOL_STRING(sym) #sym\n"); |
1704 | fprintf(fd, "\n"); |
1705 | fprintf(fd, "static struct ltt_facility facility = {\n"); |
1706 | fprintf(fd, "\t.name = ltt_facility_name,\n"); |
1707 | fprintf(fd, "\t.num_events = LTT_FACILITY_NUM_EVENTS,\n"); |
1708 | fprintf(fd, "\t.checksum = LTT_FACILITY_CHECKSUM,\n"); |
1709 | fprintf(fd, "\t.symbol = SYMBOL_STRING(LTT_FACILITY_SYMBOL),\n"); |
1710 | fprintf(fd, "};\n"); |
1711 | fprintf(fd, "\n"); |
1712 | fprintf(fd, "#ifndef MODULE\n"); |
1713 | fprintf(fd, "\n"); |
1714 | fprintf(fd, "/* Built-in facility. */\n"); |
1715 | fprintf(fd, "\n"); |
1716 | fprintf(fd, "static int __init facility_init(void)\n"); |
1717 | fprintf(fd, "{\n"); |
1718 | fprintf(fd, "\tprintk(KERN_INFO \"LTT : ltt-facility-%s init in kernel\\n\");\n", fac->name); |
1719 | fprintf(fd, "\n"); |
1720 | fprintf(fd, "\tLTT_FACILITY_SYMBOL = ltt_facility_builtin_register(&facility);\n"); |
1721 | fprintf(fd, "\tLTT_FACILITY_CHECKSUM_SYMBOL = LTT_FACILITY_SYMBOL;\n"); |
1722 | fprintf(fd, "\t\n"); |
1723 | fprintf(fd, "\treturn LTT_FACILITY_SYMBOL;\n"); |
1724 | fprintf(fd, "}\n"); |
1725 | fprintf(fd, "__initcall(facility_init);\n"); |
1726 | fprintf(fd, "\n"); |
1727 | fprintf(fd, "\n"); |
1728 | fprintf(fd, "\n"); |
1729 | fprintf(fd, "#else \n"); |
1730 | fprintf(fd, "\n"); |
1731 | fprintf(fd, "/* Dynamic facility. */\n"); |
1732 | fprintf(fd, "\n"); |
1733 | fprintf(fd, "static int __init facility_init(void)\n"); |
1734 | fprintf(fd, "{\n"); |
1735 | fprintf(fd, "\tprintk(KERN_INFO \"LTT : ltt-facility-%s init dynamic\\n\");\n", fac->name); |
1736 | fprintf(fd, "\n"); |
1737 | fprintf(fd, "\tLTT_FACILITY_SYMBOL = ltt_facility_dynamic_register(&facility);\n"); |
1738 | fprintf(fd, "\tLTT_FACILITY_CHECKSUM_SYMBOL = LTT_FACILITY_SYMBOL;\n"); |
1739 | fprintf(fd, "\n"); |
1740 | fprintf(fd, "\treturn LTT_FACILITY_SYMBOL;\n"); |
1741 | fprintf(fd, "}\n"); |
1742 | fprintf(fd, "\n"); |
1743 | fprintf(fd, "static void __exit facility_exit(void)\n"); |
1744 | fprintf(fd, "{\n"); |
1745 | fprintf(fd, "\tint err;\n"); |
1746 | fprintf(fd, "\n"); |
1747 | fprintf(fd, "\terr = ltt_facility_dynamic_unregister(LTT_FACILITY_SYMBOL);\n"); |
1748 | fprintf(fd, "\tif(err != 0)\n"); |
1749 | fprintf(fd, "\t\tprintk(KERN_ERR \"LTT : Error in unregistering facility.\\n\");\n"); |
1750 | fprintf(fd, "\n"); |
1751 | fprintf(fd, "}\n"); |
1752 | fprintf(fd, "\n"); |
1753 | fprintf(fd, "module_init(facility_init)\n"); |
1754 | fprintf(fd, "module_exit(facility_exit)\n"); |
1755 | fprintf(fd, "\n"); |
1756 | fprintf(fd, "\n"); |
1757 | fprintf(fd, "MODULE_LICENSE(\"GPL\");\n"); |
1758 | fprintf(fd, "MODULE_AUTHOR(\"Mathieu Desnoyers\");\n"); |
1759 | fprintf(fd, "MODULE_DESCRIPTION(\"Linux Trace Toolkit Facility\");\n"); |
1760 | fprintf(fd, "\n"); |
1761 | fprintf(fd, "#endif //MODULE\n"); |
1762 | fprintf(fd, "\n"); |
1763 | fprintf(fd, "#endif //CONFIG_LTT\n"); |
2d2d14a7 |
1764 | |
1765 | fclose(fd); |
1766 | |
1767 | return 0; |
1768 | } |
1769 | |
1770 | |
1771 | |
92d82357 |
1772 | /* open facility */ |
1773 | /* code taken from ltt_facility_open in ltt/facility.c in lttv */ |
1774 | |
1775 | /***************************************************************************** |
1776 | *Function name |
1777 | * ltt_facility_open : open facilities |
1778 | *Input params |
1779 | * pathname : the path name of the facility |
1780 | * |
1781 | * Open the facility corresponding to the right checksum. |
1782 | * |
1783 | *returns the facility on success, NULL on error. |
1784 | ****************************************************************************/ |
1785 | facility_t *ltt_facility_open(char * pathname) |
1786 | { |
1787 | int ret = 0; |
1788 | char *token; |
1789 | parse_file_t in; |
1790 | facility_t * fac = NULL; |
92d82357 |
1791 | char buffer[BUFFER_SIZE]; |
1792 | int generated = FALSE; |
1793 | |
1794 | in.buffer = &(buffer[0]); |
1795 | in.lineno = 0; |
1796 | in.error = error_callback; |
1797 | in.name = pathname; |
1798 | in.unget = 0; |
1799 | |
1800 | in.fp = fopen(in.name, "r"); |
1801 | if(in.fp == NULL) { |
1802 | ret = 1; |
1803 | goto open_error; |
1804 | } |
1805 | |
1806 | while(1){ |
1807 | token = getToken(&in); |
1808 | if(in.type == ENDFILE) break; |
1809 | |
1810 | if(generated) { |
1811 | printf("More than one facility in the file. Only using the first one.\n"); |
1812 | break; |
1813 | } |
1814 | |
1815 | if(strcmp(token, "<")) in.error(&in,"not a facility file"); |
1816 | token = getName(&in); |
1817 | |
1818 | if(strcmp("facility",token) == 0) { |
1819 | fac = malloc(sizeof(facility_t)); |
1820 | fac->name = NULL; |
1821 | fac->description = NULL; |
1822 | sequence_init(&(fac->events)); |
1823 | table_init(&(fac->named_types)); |
1824 | sequence_init(&(fac->unnamed_types)); |
1825 | |
1826 | parseFacility(&in, fac); |
1827 | |
1828 | //check if any namedType is not defined |
1829 | checkNamedTypesImplemented(&fac->named_types); |
1830 | |
2e415130 |
1831 | generateChecksum(fac->name, &fac->checksum, &fac->events); |
a67cd958 |
1832 | |
92d82357 |
1833 | generated = TRUE; |
1834 | } |
1835 | else { |
1836 | printf("facility token was expected in file %s\n", in.name); |
1837 | ret = 1; |
1838 | goto parse_error; |
1839 | } |
1840 | } |
1841 | |
1842 | parse_error: |
1843 | fclose(in.fp); |
1844 | open_error: |
1845 | |
1846 | if(!generated) { |
1847 | printf("Cannot find facility %s\n", pathname); |
1848 | fac = NULL; |
1849 | } |
1850 | |
1851 | return fac; |
1852 | } |
1853 | |
1854 | /* Close the facility */ |
1855 | void ltt_facility_close(facility_t *fac) |
1856 | { |
1857 | free(fac->name); |
1858 | free(fac->capname); |
1859 | free(fac->description); |
1860 | freeEvents(&fac->events); |
1861 | sequence_dispose(&fac->events); |
1862 | freeNamedType(&fac->named_types); |
1863 | table_dispose(&fac->named_types); |
1864 | freeTypes(&fac->unnamed_types); |
1865 | sequence_dispose(&fac->unnamed_types); |
1866 | free(fac); |
1867 | } |
1868 | |
1869 | |
1870 | /* Show help */ |
1871 | void show_help(int argc, char ** argv) |
1872 | { |
1873 | printf("Genevent help : \n"); |
1874 | printf("\n"); |
1875 | printf("Use %s name.xml\n", argv[0]); |
1876 | printf("to create :\n"); |
1877 | printf("ltt-facility-name.h\n"); |
1878 | printf("ltt-facility-id-name.h\n"); |
1879 | printf("ltt-facility-loader-name.h\n"); |
1880 | printf("ltt-facility-loader-name.c\n"); |
1881 | printf("In the current directory.\n"); |
1882 | printf("\n"); |
1883 | } |
1884 | |
1885 | /* Parse program arguments */ |
1886 | /* Return values : |
1887 | * 0 : continue program |
1888 | * -1 : stop program, return 0 |
1889 | * > 0 : stop program, return value as exit. |
1890 | */ |
1891 | int check_args(int argc, char **argv) |
1892 | { |
1893 | if(argc < 2) { |
1894 | printf("Not enough arguments\n"); |
1895 | show_help(argc, argv); |
1896 | return EINVAL; |
1897 | } |
1898 | |
1899 | if(strcmp(argv[1], "-h") == 0) { |
1900 | show_help(argc, argv); |
1901 | return -1; |
1902 | } |
1903 | |
1904 | return 0; |
1905 | } |
1906 | |
1907 | int main(int argc, char **argv) |
1908 | { |
1909 | int err = 0; |
1910 | facility_t *fac; |
1911 | |
1912 | err = check_args(argc, argv); |
1913 | if(err > 0) return err; |
1914 | else if(err < 0) return 0; |
1915 | |
1916 | /* open the facility */ |
1917 | fac = ltt_facility_open(argv[1]); |
1918 | if(fac == NULL) { |
1919 | printf("Error opening file %s for reading : %s\n", |
1920 | argv[1], strerror(errno)); |
1921 | return errno; |
1922 | } |
1923 | |
1924 | /* generate the output C files */ |
1925 | |
1926 | |
2d2d14a7 |
1927 | /* ltt-facility-name.h : main logging header. |
1928 | * log_header */ |
1929 | err = print_log_header(fac); |
1930 | if(err) return err; |
92d82357 |
1931 | |
2d2d14a7 |
1932 | /* ltt-facility-id-name.h : facility id. |
1933 | * log_id_header */ |
1934 | err = print_id_header(fac); |
1935 | if(err) return err; |
92d82357 |
1936 | |
2d2d14a7 |
1937 | /* ltt-facility-loader-name.h : facility specific loader info. |
1938 | * loader_header */ |
1939 | err = print_loader_header(fac); |
1940 | if(err) return err; |
1941 | |
1942 | /* ltt-facility-loader-name.c : generic faciilty loader |
1943 | * loader_c */ |
1944 | err = print_loader_c(fac); |
1945 | if(err) return err; |
92d82357 |
1946 | |
1947 | /* close the facility */ |
1948 | ltt_facility_close(fac); |
1949 | |
1950 | return 0; |
1951 | } |
1952 | |
1953 | |