3888436c |
1 | /* |
2 | |
3 | genevent.c: Generate helper declarations and functions to trace events |
4 | from an event description file. |
5 | |
6 | Copyright (C) 2002, Xianxiu Yang |
7 | Copyright (C) 2002, Michel Dagenais |
8 | |
9 | This program is free software; you can redistribute it and/or modify |
10 | it under the terms of the GNU General Public License as published by |
11 | the Free Software Foundation; version 2 of the License. |
12 | |
13 | This program is distributed in the hope that it will be useful, |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
16 | GNU General Public License for more details. |
17 | |
18 | You should have received a copy of the GNU General Public License |
19 | along with this program; if not, write to the Free Software |
20 | Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
21 | */ |
22 | |
23 | /* This program reads the ".event" event definitions input files |
24 | specified as command line arguments and generates corresponding |
25 | ".c" and ".h" files required to trace such events in the kernel. |
26 | |
27 | The program uses a very simple tokenizer, called from a hand written |
28 | recursive descent parser to fill a data structure describing the events. |
29 | The result is a sequence of events definitions which refer to type |
30 | definitions. |
31 | |
32 | A table of named types is maintained to allow refering to types by name |
33 | when the same type is used at several places. Finally a sequence of |
34 | all types is maintained to facilitate the freeing of all type |
35 | information when the processing of an ".event" file is finished. */ |
36 | |
37 | #include <stdlib.h> |
38 | #include <string.h> |
31cbc5d3 |
39 | #include <ctype.h> |
3888436c |
40 | #include <stdio.h> |
41 | #include <stdarg.h> |
42 | #include <linux/errno.h> |
d7ed29cd |
43 | #include <assert.h> |
3888436c |
44 | |
45 | #include "parser.h" |
46 | #include "genevent.h" |
47 | |
4a65a3b9 |
48 | #define max(a,b) ((a)<(b))?(b):(a) |
49 | |
3888436c |
50 | /* Named types may be referenced from anywhere */ |
51 | |
52 | facility * fac; |
53 | |
4a65a3b9 |
54 | unsigned alignment = 0; |
55 | |
3888436c |
56 | int main(int argc, char** argv) |
57 | { |
58 | char *token; |
59 | parse_file in; |
60 | char buffer[BUFFER_SIZE]; |
61 | int i; |
62 | |
63 | if(argc < 2){ |
64 | printf("At least one event definition file is needed\n"); |
4a65a3b9 |
65 | printf("You may specify the default alignment for a facility with\n"); |
66 | printf(" -a x , where x is the desired alignment in bytes.\n"); |
67 | printf("The alignment value will affect all the following xml files.\n"); |
68 | printf("i.e. genevent -a 8 core.xml -a 4 kernel.xml is valid.\n"); |
3888436c |
69 | exit(1); |
70 | } |
71 | |
72 | in.buffer = buffer; |
73 | in.error = error_callback; |
74 | |
75 | for(i = 1 ; i < argc ; i++) { |
4a65a3b9 |
76 | |
77 | if(strcmp("-a", argv[i])==0) { |
cc226d37 |
78 | if(i >= argc-1) { |
4a65a3b9 |
79 | printf("Error : missing argument to -a\n"); |
80 | exit(1); |
81 | } else i++; |
82 | alignment = atoi(argv[i]); |
cc226d37 |
83 | } else { |
4a65a3b9 |
84 | |
cc226d37 |
85 | in.lineno = 0; |
86 | in.name = allocAndCopy(argv[i]); |
87 | |
88 | in.fp = fopen(in.name, "r"); |
89 | if(!in.fp ){ |
90 | in.error(&in,"cannot open facility input file"); |
91 | } |
92 | |
93 | while(1){ |
94 | token = getToken(&in); |
95 | if(in.type == ENDFILE) break; |
96 | |
97 | if(strcmp(token, "<")) in.error(&in,"not a facility file"); |
98 | token = getName(&in); |
99 | |
100 | if(strcmp("facility",token) == 0) { |
101 | fac = memAlloc(sizeof(facility)); |
102 | fac->name = NULL; |
103 | fac->description = NULL; |
104 | sequence_init(&(fac->events)); |
105 | table_init(&(fac->named_types)); |
106 | sequence_init(&(fac->unnamed_types)); |
107 | |
108 | parseFacility(&in, fac); |
109 | |
110 | //check if any namedType is not defined |
111 | checkNamedTypesImplemented(&fac->named_types); |
112 | } |
113 | else in.error(&in,"facility token was expected"); |
114 | |
115 | generateFile(argv[i]); |
116 | |
117 | free(fac->name); |
118 | free(fac->description); |
119 | freeEvents(&fac->events); |
120 | sequence_dispose(&fac->events); |
121 | freeNamedType(&fac->named_types); |
122 | table_dispose(&fac->named_types); |
123 | freeTypes(&fac->unnamed_types); |
124 | sequence_dispose(&fac->unnamed_types); |
125 | free(fac); |
126 | } |
127 | |
128 | free(in.name); |
129 | fclose(in.fp); |
130 | } |
3888436c |
131 | } |
132 | return 0; |
133 | } |
134 | |
135 | |
136 | /***************************************************************************** |
137 | *Function name |
138 | * generateFile : generate .c and .h file |
139 | *Input Params |
140 | * name : name of event definition file |
141 | ****************************************************************************/ |
142 | void generateFile(char *name){ |
a8f6f123 |
143 | char *loadName, *hName, *hIdName, *cName, *tmp, *tmp2; |
144 | FILE * lFp, *hFp, *iFp, *cFp; |
3888436c |
145 | int nbEvent; |
146 | unsigned long checksum=0; |
147 | |
148 | //remove .xml if it exists |
149 | tmp = &name[strlen(name)-4]; |
150 | if(strcmp(tmp, ".xml") == 0){ |
151 | *tmp = '\0'; |
152 | } |
153 | |
154 | tmp = strrchr(name,'/'); |
155 | if(tmp){ |
156 | tmp++; |
157 | }else{ |
158 | tmp = name; |
159 | } |
6d387597 |
160 | |
161 | loadName = appendString("ltt-facility-loader-", tmp); |
162 | tmp2 = appendString(loadName,".h"); |
163 | free(loadName); |
164 | loadName = tmp2; |
165 | hName = appendString("ltt-facility-", tmp); |
166 | tmp2 = appendString(hName,".h"); |
167 | free(hName); |
168 | hName = tmp2; |
a8f6f123 |
169 | hIdName = appendString("ltt-facility-id-", tmp); |
170 | tmp2 = appendString(hIdName,".h"); |
171 | free(hIdName); |
172 | hIdName = tmp2; |
173 | cName = appendString("ltt-facility-loader-", tmp); |
174 | tmp2 = appendString(cName,".c"); |
175 | free(cName); |
176 | cName = tmp2; |
6d387597 |
177 | lFp = fopen(loadName,"w"); |
178 | if(!lFp){ |
179 | printf("Cannot open the file : %s\n",loadName); |
3888436c |
180 | exit(1); |
181 | } |
182 | |
183 | hFp = fopen(hName,"w"); |
184 | if(!hFp){ |
185 | printf("Cannot open the file : %s\n",hName); |
186 | exit(1); |
187 | } |
a8f6f123 |
188 | |
189 | iFp = fopen(hIdName,"w"); |
190 | if(!iFp){ |
191 | printf("Cannot open the file : %s\n",hIdName); |
192 | exit(1); |
193 | } |
194 | |
195 | cFp = fopen(cName,"w"); |
196 | if(!cFp){ |
197 | printf("Cannot open the file : %s\n",cName); |
198 | exit(1); |
199 | } |
3888436c |
200 | |
6d387597 |
201 | free(loadName); |
3888436c |
202 | free(hName); |
a8f6f123 |
203 | free(hIdName); |
204 | free(cName); |
3888436c |
205 | |
206 | generateChecksum(fac->name, &checksum, &(fac->events)); |
207 | |
208 | /* generate .h file, event enumeration then structures and functions */ |
a8f6f123 |
209 | fprintf(iFp, "#ifndef _LTT_FACILITY_ID_%s_H_\n",fac->capname); |
210 | fprintf(iFp, "#define _LTT_FACILITY_ID_%s_H_\n\n",fac->capname); |
1bedc199 |
211 | fprintf(iFp, "#ifdef CONFIG_LTT\n"); |
a8f6f123 |
212 | generateEnumEvent(iFp, fac->name, &nbEvent, checksum); |
1bedc199 |
213 | fprintf(iFp, "#endif //CONFIG_LTT\n"); |
a8f6f123 |
214 | fprintf(iFp, "#endif //_LTT_FACILITY_ID_%s_H_\n",fac->capname); |
215 | |
216 | |
217 | fprintf(hFp, "#ifndef _LTT_FACILITY_%s_H_\n",fac->capname); |
218 | fprintf(hFp, "#define _LTT_FACILITY_%s_H_\n\n",fac->capname); |
1bedc199 |
219 | //fprintf(hFp, "#ifdef CONFIG_LTT\n"); |
a8f6f123 |
220 | generateTypeDefs(hFp, fac->name); |
31cbc5d3 |
221 | generateStructFunc(hFp, fac->name,checksum); |
1bedc199 |
222 | //fprintf(hFp, "#endif //CONFIG_LTT\n"); |
a8f6f123 |
223 | fprintf(hFp, "#endif //_LTT_FACILITY_%s_H_\n",fac->capname); |
3888436c |
224 | |
6d387597 |
225 | /* generate .h file, calls to register the facility at init time */ |
8c6ca411 |
226 | generateLoaderfile(lFp,fac->name,nbEvent,checksum,fac->capname); |
3888436c |
227 | |
a8f6f123 |
228 | // create ltt-facility-loader-facname.c |
229 | generateCfile(cFp, tmp); |
230 | |
3888436c |
231 | fclose(hFp); |
a8f6f123 |
232 | fclose(iFp); |
6d387597 |
233 | fclose(lFp); |
a8f6f123 |
234 | fclose(cFp); |
235 | |
3888436c |
236 | } |
237 | |
238 | |
239 | /***************************************************************************** |
240 | *Function name |
241 | * generateEnumEvent : output event enum to .h file |
242 | *Input Params |
243 | * fp : file to be written to |
244 | * facName : name of facility |
245 | *Output Params |
246 | * nbEvent : number of events in the facility |
247 | ****************************************************************************/ |
31cbc5d3 |
248 | void generateEnumEvent(FILE *fp, char *facName, int * nbEvent, unsigned long checksum) { |
3888436c |
249 | int pos = 0; |
250 | |
a8f6f123 |
251 | fprintf(fp,"#include <linux/ltt-facilities.h>\n\n"); |
3888436c |
252 | |
253 | fprintf(fp,"/**** facility handle ****/\n\n"); |
a8f6f123 |
254 | fprintf(fp,"extern ltt_facility_t ltt_facility_%s_%X;\n",facName, checksum); |
255 | fprintf(fp,"extern ltt_facility_t ltt_facility_%s;\n\n\n",facName, checksum); |
3888436c |
256 | |
257 | fprintf(fp,"/**** event type ****/\n\n"); |
258 | fprintf(fp,"enum %s_event {\n",facName); |
259 | |
260 | for(pos = 0; pos < fac->events.position;pos++) { |
a8f6f123 |
261 | fprintf(fp,"\tevent_%s", ((event *)(fac->events.array[pos]))->name); |
3888436c |
262 | if(pos != fac->events.position-1) fprintf(fp,",\n"); |
263 | } |
264 | fprintf(fp,"\n};\n\n\n"); |
265 | |
266 | // fprintf(fp,"/**** number of events in the facility ****/\n\n"); |
267 | // fprintf(fp,"int nbEvents_%s = %d;\n\n\n",facName, fac->events.position); |
268 | *nbEvent = fac->events.position; |
269 | } |
270 | |
271 | |
31cbc5d3 |
272 | /***************************************************************************** |
273 | *Function name |
274 | * printStruct : Generic struct printing function |
275 | *Input Params |
276 | * fp : file to be written to |
277 | * len : number of fields |
278 | * array : array of field info |
279 | * name : basic struct name |
280 | * facName : name of facility |
281 | * whichTypeFirst : struct or array/sequence first |
282 | * hasStrSeq : string or sequence present? |
283 | * structCount : struct postfix |
284 | ****************************************************************************/ |
cb1eb7ce |
285 | |
31cbc5d3 |
286 | static void |
287 | printStruct(FILE * fp, int len, void ** array, char * name, char * facName, |
9774b764 |
288 | int * whichTypeFirst, int * hasStrSeq, int * structCount, |
289 | type_descriptor *type) |
31cbc5d3 |
290 | { |
291 | int flag = 0; |
292 | int pos; |
293 | field * fld; |
294 | type_descriptor * td; |
295 | |
296 | for (pos = 0; pos < len; pos++) { |
297 | fld = (field *)array[pos]; |
298 | td = fld->type; |
a8f6f123 |
299 | if( td->type == STRING || td->type == SEQUENCE || |
300 | td->type == ARRAY) { |
301 | (*hasStrSeq)++; |
d9a67054 |
302 | } else { |
31cbc5d3 |
303 | if (flag == 0) { |
304 | flag = 1; |
cb1eb7ce |
305 | fprintf(fp,"struct %s_%s",name, facName); |
306 | if (structCount) { |
a8f6f123 |
307 | fprintf(fp, "_%d {\n",++*structCount); |
cb1eb7ce |
308 | } else { |
309 | fprintf(fp, " {\n"); |
310 | } |
31cbc5d3 |
311 | } |
cb1eb7ce |
312 | fprintf(fp, "\t%s %s; /* %s */\n", |
313 | getTypeStr(td),fld->name,fld->description ); |
31cbc5d3 |
314 | } |
315 | } |
316 | |
317 | if(flag) { |
4a65a3b9 |
318 | unsigned align = max(alignment, type->alignment); |
319 | |
320 | if(align == 0) |
9774b764 |
321 | fprintf(fp,"} __attribute__ ((packed));\n\n"); |
322 | else { |
4a65a3b9 |
323 | if(align != 1 && align != 2 |
324 | && align != 4 && align != 8) { |
325 | printf("Wrong alignment %i, using packed.\n", align); |
9774b764 |
326 | fprintf(fp,"} __attribute__ ((packed));\n\n"); |
327 | } else |
4a65a3b9 |
328 | fprintf(fp,"} __attribute__ ((aligned(%i)));\n\n", align); |
9774b764 |
329 | } |
31cbc5d3 |
330 | } |
331 | } |
332 | |
333 | |
334 | /***************************************************************************** |
335 | *Function name |
336 | * generateHfile : Create the typedefs |
337 | *Input Params |
338 | * fp : file to be written to |
339 | ****************************************************************************/ |
340 | void |
a8f6f123 |
341 | generateTypeDefs(FILE * fp, char *facName) |
31cbc5d3 |
342 | { |
343 | int pos, tmp = 1; |
344 | |
a8f6f123 |
345 | fprintf(fp,"#include <linux/types.h>\n"); |
346 | fprintf(fp,"#include <linux/spinlock.h>\n"); |
347 | fprintf(fp,"#include <linux/ltt/ltt-facility-id-%s.h>\n\n", facName); |
348 | fprintf(fp,"#include <linux/ltt-core.h>\n"); |
349 | |
9774b764 |
350 | #if 0 //broken |
31cbc5d3 |
351 | fprintf(fp, "/**** Basic Type Definitions ****/\n\n"); |
352 | |
353 | for (pos = 0; pos < fac->named_types.values.position; pos++) { |
354 | type_descriptor * type = |
355 | (type_descriptor*)fac->named_types.values.array[pos]; |
356 | printStruct(fp, type->fields.position, type->fields.array, |
357 | "", type->type_name, &tmp, &tmp, NULL); |
358 | fprintf(fp, "typedef struct _%s %s;\n\n", |
359 | type->type_name, type->type_name); |
360 | } |
9774b764 |
361 | #endif //0 |
31cbc5d3 |
362 | } |
363 | |
364 | |
3888436c |
365 | /***************************************************************************** |
366 | *Function name |
367 | * generateEnumDefinition: generate enum definition if it exists |
368 | *Input Params |
369 | * fp : file to be written to |
370 | * fHead : enum type |
371 | ****************************************************************************/ |
372 | void generateEnumDefinition(FILE * fp, type_descriptor * type){ |
373 | int pos; |
374 | |
a8f6f123 |
375 | if(type->already_printed) return; |
376 | |
3888436c |
377 | fprintf(fp,"enum {\n"); |
378 | for(pos = 0; pos < type->labels.position; pos++){ |
a8f6f123 |
379 | fprintf(fp,"\tLTT_ENUM_%s", type->labels.array[pos]); |
8c6ca411 |
380 | if (pos != type->labels.position - 1) fprintf(fp,","); |
a8f6f123 |
381 | if(type->labels_description.array[pos] != NULL) |
382 | fprintf(fp,"\t/* %s */\n",type->labels_description.array[pos]); |
383 | else |
384 | fprintf(fp,"\n"); |
3888436c |
385 | } |
8c6ca411 |
386 | fprintf(fp,"};\n\n\n"); |
44cac8a9 |
387 | |
a8f6f123 |
388 | type->already_printed = 1; |
3888436c |
389 | } |
390 | |
391 | /***************************************************************************** |
392 | *Function name |
393 | * generateStrucTFunc: output structure and function to .h file |
394 | *Input Params |
395 | * fp : file to be written to |
396 | * facName : name of facility |
397 | ****************************************************************************/ |
31cbc5d3 |
398 | void generateStructFunc(FILE * fp, char * facName, unsigned long checksum){ |
3888436c |
399 | event * ev; |
400 | field * fld; |
401 | type_descriptor * td; |
402 | int pos, pos1; |
403 | int hasStrSeq, flag, structCount, seqCount,strCount, whichTypeFirst=0; |
276a9e6f |
404 | int args_empty; |
3888436c |
405 | |
406 | for(pos = 0; pos < fac->events.position; pos++){ |
407 | ev = (event *) fac->events.array[pos]; |
408 | //yxx if(ev->nested)continue; |
d7ed29cd |
409 | fprintf(fp,"/**** structure and trace function for event: %s ****/\n\n", |
410 | ev->name); |
a8f6f123 |
411 | //if(ev->type == 0){ // event without type |
412 | // fprintf(fp,"static inline void trace_%s_%s(void){\n",facName,ev->name); |
413 | // fprintf(fp,"\tltt_log_event(ltt_facility_%s_%X, event_%s, 0, NULL);\n", |
414 | // facName,checksum,ev->name); |
415 | // fprintf(fp,"};\n\n\n"); |
416 | // continue; |
417 | //} |
3888436c |
418 | |
419 | //if fields contain enum, print out enum definition |
d7ed29cd |
420 | //MD : fixed in generateEnumDefinition to do not print the same enum |
421 | //twice. |
a8f6f123 |
422 | if(ev->type != 0) |
423 | for(pos1 = 0; pos1 < ev->type->fields.position; pos1++){ |
424 | fld = (field *)ev->type->fields.array[pos1]; |
425 | if(fld->type->type == ENUM) generateEnumDefinition(fp, fld->type); |
426 | } |
3888436c |
427 | |
428 | //default: no string, array or sequence in the event |
429 | hasStrSeq = 0; |
430 | whichTypeFirst = 0; |
3888436c |
431 | structCount = 0; |
31cbc5d3 |
432 | |
433 | //structure for kernel |
a8f6f123 |
434 | if(ev->type != 0) |
435 | printStruct(fp, ev->type->fields.position, ev->type->fields.array, |
9774b764 |
436 | ev->name, facName, &whichTypeFirst, &hasStrSeq, &structCount, |
437 | ev->type); |
3888436c |
438 | |
1bedc199 |
439 | |
440 | //trace function : function name and parameters : stub function. |
441 | seqCount = 0; |
442 | strCount = 0; |
443 | fprintf(fp, "#ifndef CONFIG_LTT\n"); |
444 | fprintf(fp,"static inline void trace_%s_%s(",facName,ev->name); |
276a9e6f |
445 | |
446 | args_empty = 1; |
447 | |
448 | /* Does it support per trace tracing ? */ |
449 | if(ev->per_trace) { |
450 | fprintf(fp, "struct ltt_trace_struct *dest_trace"); |
451 | args_empty = 0; |
452 | } |
453 | |
454 | /* Does it support per tracefile tracing ? */ |
455 | if(ev->per_tracefile) { |
456 | if(!args_empty) fprintf(fp, ", "); |
457 | fprintf(fp, "unsigned int tracefile_index"); |
458 | args_empty = 0; |
459 | } |
460 | |
461 | if(ev->type != 0) { |
1bedc199 |
462 | for(pos1 = 0; pos1 < ev->type->fields.position; pos1++){ |
463 | fld = (field *)ev->type->fields.array[pos1]; |
464 | td = fld->type; |
276a9e6f |
465 | if(!args_empty) fprintf(fp, ", "); |
1bedc199 |
466 | if(td->type == ARRAY ){ |
467 | fprintf(fp,"%s * %s",getTypeStr(td), fld->name); |
276a9e6f |
468 | args_empty = 0; |
1bedc199 |
469 | }else if(td->type == STRING){ |
470 | fprintf(fp,"short int strlength_%d, %s * %s", |
471 | ++strCount, getTypeStr(td), fld->name); |
276a9e6f |
472 | args_empty = 0; |
473 | }else if(td->type == SEQUENCE){ |
1bedc199 |
474 | fprintf(fp,"%s seqlength_%d, %s * %s", |
475 | uintOutputTypes[td->size], ++seqCount,getTypeStr(td), fld->name); |
276a9e6f |
476 | args_empty = 0; |
477 | }else { |
478 | fprintf(fp,"%s %s",getTypeStr(td), fld->name); |
479 | args_empty = 0; |
480 | } |
1bedc199 |
481 | } |
276a9e6f |
482 | } |
483 | if(args_empty) fprintf(fp, "void"); |
484 | |
1bedc199 |
485 | fprintf(fp,")\n{\n"); |
486 | fprintf(fp,"}\n"); |
487 | fprintf(fp,"#else\n"); |
488 | |
3888436c |
489 | //trace function : function name and parameters |
490 | seqCount = 0; |
491 | strCount = 0; |
492 | fprintf(fp,"static inline void trace_%s_%s(",facName,ev->name); |
276a9e6f |
493 | |
494 | args_empty = 1; |
495 | |
496 | /* Does it support per trace tracing ? */ |
497 | if(ev->per_trace) { |
498 | fprintf(fp, "struct ltt_trace_struct *dest_trace"); |
499 | args_empty = 0; |
500 | } |
501 | |
502 | /* Does it support per tracefile tracing ? */ |
503 | if(ev->per_tracefile) { |
504 | if(!args_empty) fprintf(fp, ", "); |
505 | fprintf(fp, "unsigned int tracefile_index"); |
506 | args_empty = 0; |
507 | } |
508 | |
509 | if(ev->type != 0) { |
a8f6f123 |
510 | for(pos1 = 0; pos1 < ev->type->fields.position; pos1++){ |
511 | fld = (field *)ev->type->fields.array[pos1]; |
512 | td = fld->type; |
276a9e6f |
513 | if(!args_empty) fprintf(fp, ", "); |
a8f6f123 |
514 | if(td->type == ARRAY ){ |
515 | fprintf(fp,"%s * %s",getTypeStr(td), fld->name); |
276a9e6f |
516 | args_empty = 0; |
a8f6f123 |
517 | }else if(td->type == STRING){ |
518 | fprintf(fp,"short int strlength_%d, %s * %s", |
519 | ++strCount, getTypeStr(td), fld->name); |
276a9e6f |
520 | args_empty = 0; |
521 | }else if(td->type == SEQUENCE){ |
a8f6f123 |
522 | fprintf(fp,"%s seqlength_%d, %s * %s", |
523 | uintOutputTypes[td->size], ++seqCount,getTypeStr(td), fld->name); |
276a9e6f |
524 | args_empty = 0; |
525 | }else { |
526 | fprintf(fp,"%s %s",getTypeStr(td), fld->name); |
527 | args_empty = 0; |
528 | } |
a8f6f123 |
529 | } |
276a9e6f |
530 | } |
531 | if(args_empty) fprintf(fp, "void"); |
1bedc199 |
532 | |
276a9e6f |
533 | fprintf(fp,")\n{\n"); |
1bedc199 |
534 | |
3888436c |
535 | //allocate buffer |
d7ed29cd |
536 | // MD no more need. fprintf(fp,"\tchar buff[buflength];\n"); |
537 | // write directly to the channel |
538 | fprintf(fp, "\tunsigned int index;\n"); |
539 | fprintf(fp, "\tstruct ltt_channel_struct *channel;\n"); |
540 | fprintf(fp, "\tstruct ltt_trace_struct *trace;\n"); |
a8f6f123 |
541 | fprintf(fp, "\tunsigned long _flags;\n"); |
2f74104a |
542 | fprintf(fp, "\tvoid *buff;\n"); |
e8907e11 |
543 | fprintf(fp, "\tunsigned old_offset;\n"); |
2f74104a |
544 | fprintf(fp, "\tunsigned int header_length;\n"); |
c0d2d4d4 |
545 | fprintf(fp, "\tunsigned int event_length;\n"); // total size (incl hdr) |
546 | fprintf(fp, "\tunsigned int length;\n"); // Size of the event var data. |
1bedc199 |
547 | fprintf(fp, "\tunsigned char _offset;\n"); |
548 | fprintf(fp, "\tstruct rchan_buf *buf;\n"); |
5e07c65f |
549 | fprintf(fp, "\tstruct timeval delta;\n"); |
550 | fprintf(fp, "\tu64 tsc;\n"); |
e8907e11 |
551 | fprintf(fp, "\tchar *ptr;\n"); |
2f74104a |
552 | |
a8f6f123 |
553 | if(ev->type != 0) |
554 | fprintf(fp, "\tstruct %s_%s_1* __1;\n\n", ev->name, facName); |
d7ed29cd |
555 | |
1bedc199 |
556 | /* Warning : this is done prior to taking locks : |
557 | * setting this value must be done at the end of the trace activation. |
558 | * (we don't care for trace removal, as the list of traces is protected : it |
559 | * just won't iterate on any trace). */ |
560 | fprintf(fp, |
561 | "\tif(ltt_traces.num_active_traces == 0) return;\n\n"); |
562 | |
2f74104a |
563 | fprintf(fp, "\t/* Disable interrupts. */\n"); |
564 | fprintf(fp, "\tlocal_irq_save(_flags);\n"); |
565 | fprintf(fp, "\tpreempt_disable();\n\n"); |
566 | |
567 | fprintf(fp, "\tltt_nesting[smp_processor_id()]++;\n"); |
1bedc199 |
568 | fprintf(fp, "\tbarrier();\n"); |
569 | fprintf(fp, "\tif(ltt_nesting[smp_processor_id()] > 1) goto unlock;\n"); |
2f74104a |
570 | fprintf(fp, "\tspin_lock(<t_traces.locks[smp_processor_id()]);\n\n"); |
571 | |
276a9e6f |
572 | if(ev->per_tracefile) { |
573 | fprintf(fp, "\tindex = tracefile_index;\n"); |
574 | } else { |
575 | fprintf(fp, |
d7ed29cd |
576 | "\tindex = ltt_get_index_from_facility(ltt_facility_%s_%X,\n"\ |
a8f6f123 |
577 | "\t\t\t\tevent_%s);\n", |
d7ed29cd |
578 | facName, checksum, ev->name); |
276a9e6f |
579 | } |
d7ed29cd |
580 | fprintf(fp,"\n"); |
581 | |
a8f6f123 |
582 | /* For each trace */ |
d7ed29cd |
583 | fprintf(fp, "\tlist_for_each_entry(trace, <t_traces.head, list) {\n"); |
a8f6f123 |
584 | fprintf(fp, "\t\tif(!trace->active) continue;\n\n"); |
0f5d12e9 |
585 | |
276a9e6f |
586 | if(ev->per_trace) { |
587 | fprintf(fp, "\t\tif(dest_trace != trace) continue;\n\n"); |
588 | } |
0f5d12e9 |
589 | //length of buffer : length of all structures |
0f5d12e9 |
590 | // if(ev->type == 0) fprintf(fp, "0"); |
591 | |
1bedc199 |
592 | fprintf(fp, "\t\tchannel = ltt_get_channel_from_index(trace, index);\n"); |
593 | fprintf(fp, "\t\tbuf = channel->rchan->buf[smp_processor_id()];\n"); |
5e07c65f |
594 | fprintf(fp, "\n"); |
1bedc199 |
595 | /* Warning : not atomic reservation : event size depends on the current |
596 | * address for alignment */ |
5e07c65f |
597 | /* NOTE : using cmpxchg in reserve with repeat for atomicity */ |
0f5d12e9 |
598 | // Replaces _offset |
c3e1c4c4 |
599 | /* NOTE2 : as the read old address from memory must come before any |
600 | * protected event, let's add a memory barrier() to make sure the compiler |
601 | * will not reorder this read. */ |
5e07c65f |
602 | fprintf(fp, "\t\tdo {\n"); |
e8907e11 |
603 | fprintf(fp, "\t\t\told_offset = buf->offset;\n"); |
c3e1c4c4 |
604 | fprintf(fp, "\t\t\tbarrier();\n"); |
e8907e11 |
605 | fprintf(fp, "\t\t\tptr = (char*)buf->data + old_offset;\n"); |
c0d2d4d4 |
606 | |
607 | |
5e07c65f |
608 | fprintf(fp, "\t\t\theader_length = ltt_get_event_header_data(trace, " |
609 | "channel,\n" |
e8907e11 |
610 | "\t\t\t\t\t\t\t\t\t\tptr, &_offset, &delta, &tsc);\n"); |
5e07c65f |
611 | |
c0d2d4d4 |
612 | fprintf(fp, "\t\t\tptr += _offset + header_length;\n"); |
0f5d12e9 |
613 | |
614 | for(pos1=0;pos1<structCount;pos1++){ |
615 | |
4a65a3b9 |
616 | unsigned align = max(alignment, ev->type->alignment); |
617 | if(align > 1) { |
c0d2d4d4 |
618 | fprintf(fp,"\t\t\tptr += (%u - ((unsigned int)ptr&(%u-1)))&(%u-1) ;\n", |
4a65a3b9 |
619 | align, align, align); |
0f5d12e9 |
620 | } |
c0d2d4d4 |
621 | fprintf(fp,"\t\t\tptr += sizeof(struct %s_%s_%d);\n",ev->name, |
0f5d12e9 |
622 | facName,pos1+1); |
623 | // if(pos1 != structCount-1) fprintf(fp," + "); |
624 | } |
625 | |
626 | //length of buffer : length of all arrays, sequences and strings |
627 | seqCount = 0; |
628 | strCount = 0; |
629 | flag = 0; |
630 | if(ev->type != 0) |
631 | for(pos1 = 0; pos1 < ev->type->fields.position; pos1++){ |
632 | fld = (field *)ev->type->fields.array[pos1]; |
633 | td = fld->type; |
634 | if(td->type == SEQUENCE || td->type==STRING || td->type==ARRAY){ |
635 | if(td->type == SEQUENCE) { |
4a65a3b9 |
636 | |
637 | unsigned align = max(alignment, td->alignment); |
638 | if(align > 1) { |
639 | fprintf(fp,"\t\tptr+=(%u - ((unsigned int)ptr&(%u-1)))&(%u-1);\n", |
640 | align, align, align); |
641 | } |
642 | fprintf(fp,"\t\tptr += sizeof(%s);\n",uintOutputTypes[td->size]); |
643 | if(align > 1) { |
644 | fprintf(fp,"\t\tptr+=(%u - ((unsigned int)ptr&(%u-1)))&(%u-1);\n", |
645 | align, align, align); |
646 | } |
647 | fprintf(fp,"\t\tptr += sizeof(%s) * seqlength_%d;\n\n", |
648 | getTypeStr(td), seqCount); |
649 | |
0f5d12e9 |
650 | } else if(td->type==STRING) { |
4a65a3b9 |
651 | unsigned align = max(alignment, td->alignment); |
652 | if(align > 1) { |
c0d2d4d4 |
653 | fprintf(fp,"\t\t\tptr += (%u - ((unsigned int)ptr&(%u-1)))&(%u-1)) ;\n", |
4a65a3b9 |
654 | align, align, align); |
0f5d12e9 |
655 | } |
c0d2d4d4 |
656 | fprintf(fp,"ptr += strlength_%d + 1;\n", |
0f5d12e9 |
657 | ++strCount); |
658 | } |
659 | else if(td->type==ARRAY) { |
4a65a3b9 |
660 | unsigned align = max(alignment, td->alignment); |
661 | if(align > 1) { |
c0d2d4d4 |
662 | fprintf(fp,"\t\t\tptr += (%u - ((unsigned int)ptr&(%u-1)))&(%u-1);\n", |
4a65a3b9 |
663 | align, align, align); |
0f5d12e9 |
664 | } |
c0d2d4d4 |
665 | fprintf(fp,"\t\t\tptr += sizeof(%s) * %d;\n", |
0f5d12e9 |
666 | getTypeStr(td),td->size); |
667 | if(structCount == 0) flag = 1; |
668 | } |
669 | } |
670 | } |
c0d2d4d4 |
671 | fprintf(fp, "\t\t\tevent_length = (unsigned long)ptr -" |
e8907e11 |
672 | "(unsigned long)(buf->data + old_offset);\n"); |
c3e1c4c4 |
673 | |
674 | /* let's put some protection before the cmpxchg : the space reservation and |
675 | * the get TSC are not dependant from each other. I don't want the compiler |
676 | * to reorder those in the wrong order. And relay_reserve is inline, so |
677 | * _yes_, the compiler could mess it up. */ |
678 | fprintf(fp, "\t\t\tbarrier();\n"); |
5e07c65f |
679 | fprintf(fp, "\t\t\tbuff = relay_reserve(channel->rchan, event_length, " |
e8907e11 |
680 | "old_offset);\n"); |
5e07c65f |
681 | fprintf(fp, "\n"); |
682 | fprintf(fp, "\t\t} while(PTR_ERR(buff) == -EAGAIN);\n"); |
683 | fprintf(fp, "\n"); |
684 | |
685 | |
d7ed29cd |
686 | /* Reserve the channel */ |
5e07c65f |
687 | //fprintf(fp, "\t\tbuff = relay_reserve(channel->rchan, event_length);\n"); |
a8f6f123 |
688 | fprintf(fp, "\t\tif(buff == NULL) {\n"); |
689 | fprintf(fp, "\t\t\t/* Buffer is full*/\n"); |
690 | fprintf(fp, "\t\t\t/* for debug BUG(); */\n"); // DEBUG! |
691 | fprintf(fp, "\t\t\tchannel->events_lost[smp_processor_id()]++;\n"); |
e3cc790d |
692 | fprintf(fp, "\t\t\tbreak;\n"); /* don't commit a NULL reservation! */ |
a8f6f123 |
693 | fprintf(fp, "\t\t}\n"); |
d7ed29cd |
694 | |
a8f6f123 |
695 | /* DEBUG */ |
5e07c65f |
696 | //fprintf(fp, "\t\tif(resret == 1) {\n"); |
697 | //fprintf(fp, "printk(\"f%%lu e\%%u \", ltt_facility_%s_%X, event_%s);", |
698 | // facName, checksum, ev->name); |
699 | //fprintf(fp, "\t\t}\n"); |
a8f6f123 |
700 | |
701 | /* Write the header */ |
c0d2d4d4 |
702 | fprintf(fp, "\n"); |
e8907e11 |
703 | fprintf(fp,"\t\tlength = event_length - _offset - header_length;\n"); |
a8f6f123 |
704 | fprintf(fp, "\n"); |
705 | fprintf(fp, "\t\tltt_write_event_header(trace, channel, buff, \n" |
c0d2d4d4 |
706 | "\t\t\t\tltt_facility_%s_%X, event_%s, length, _offset,\n" |
707 | "\t\t\t\t&delta, &tsc);\n", |
a8f6f123 |
708 | facName, checksum, ev->name); |
709 | fprintf(fp, "\n"); |
5e07c65f |
710 | |
711 | if(ev->type != 0) |
276a9e6f |
712 | fprintf(fp, "\t\tptr = (char*)buff + _offset + header_length;\n"); |
3888436c |
713 | |
714 | //copy struct, sequence and string to buffer |
276a9e6f |
715 | //FIXME : they always come before the structs. |
3888436c |
716 | seqCount = 0; |
717 | strCount = 0; |
718 | flag = 0; |
719 | structCount = 0; |
a8f6f123 |
720 | if(ev->type != 0) |
721 | for(pos1 = 0; pos1 < ev->type->fields.position; pos1++){ |
722 | fld = (field *)ev->type->fields.array[pos1]; |
723 | td = fld->type; |
724 | // if(td->type != STRING && td->type != SEQUENCE && td->type != ARRAY){ |
725 | // if(flag == 0) structCount++; |
726 | // flag++; |
727 | // if((structCount > 1 || whichTypeFirst == 2) && flag == 1){ |
728 | // assert(0); // MD : disabled ! |
729 | // fprintf(fp,"\t//copy struct to buffer\n"); |
730 | // fprintf(fp,"\tmemcpy(ptr, &__%d, sizeof(struct %s_%s_%d));\n", |
731 | // structCount, ev->name, facName,structCount); |
732 | // fprintf(fp,"\tptr += sizeof(struct %s_%s_%d);\n\n", |
733 | // ev->name, facName,structCount); |
734 | // } |
735 | // } |
736 | //else if(td->type == SEQUENCE){ |
737 | if(td->type == SEQUENCE){ |
738 | flag = 0; |
739 | fprintf(fp,"\t\t//copy sequence length and sequence to buffer\n"); |
0f5d12e9 |
740 | |
4a65a3b9 |
741 | unsigned align = max(alignment, td->alignment); |
742 | if(align > 1) { |
0f5d12e9 |
743 | fprintf(fp,"\t\tptr+=(%u - ((unsigned int)ptr&(%u-1)))&(%u-1);\n", |
4a65a3b9 |
744 | align, align, align); |
0f5d12e9 |
745 | } |
a8f6f123 |
746 | fprintf(fp,"\t\t*ptr = seqlength_%d;\n",++seqCount); |
747 | fprintf(fp,"\t\tptr += sizeof(%s);\n",uintOutputTypes[td->size]); |
4a65a3b9 |
748 | if(align > 1) { |
0f5d12e9 |
749 | fprintf(fp,"\t\tptr+=(%u - ((unsigned int)ptr&(%u-1)))&(%u-1);\n", |
4a65a3b9 |
750 | align, align, align); |
0f5d12e9 |
751 | } |
a8f6f123 |
752 | fprintf(fp,"\t\tmemcpy(ptr, %s, sizeof(%s) * seqlength_%d);\n", |
753 | fld->name, getTypeStr(td), seqCount); |
0f5d12e9 |
754 | fprintf(fp,"\t\tptr += sizeof(%s) * seqlength_%d;\n\n", |
a8f6f123 |
755 | getTypeStr(td), seqCount); |
756 | } |
757 | else if(td->type==STRING){ |
758 | flag = 0; |
759 | fprintf(fp,"\t\t//copy string to buffer\n"); |
760 | fprintf(fp,"\t\tif(strlength_%d > 0){\n",++strCount); |
4a65a3b9 |
761 | unsigned align = max(alignment, td->alignment); |
762 | if(align > 1) { |
0f5d12e9 |
763 | fprintf(fp,"\t\tptr+=(%u - ((unsigned int)ptr&(%u-1)))&(%u-1);\n", |
4a65a3b9 |
764 | align, align, align); |
0f5d12e9 |
765 | } |
a8f6f123 |
766 | fprintf(fp,"\t\t\tmemcpy(ptr, %s, strlength_%d + 1);\n", |
767 | fld->name, strCount); |
768 | fprintf(fp,"\t\t\tptr += strlength_%d + 1;\n",strCount); |
769 | fprintf(fp,"\t\t}else{\n"); |
770 | fprintf(fp,"\t\t\t*ptr = '\\0';\n"); |
771 | fprintf(fp,"\t\t\tptr += 1;\n"); |
772 | fprintf(fp,"\t\t}\n\n"); |
773 | }else if(td->type==ARRAY){ |
774 | flag = 0; |
775 | fprintf(fp,"\t//copy array to buffer\n"); |
4a65a3b9 |
776 | unsigned align = max(alignment, td->alignment); |
777 | if(align > 1) { |
0f5d12e9 |
778 | fprintf(fp,"\t\tptr+=(%u - ((unsigned int)ptr&(%u-1)))&(%u-1);\n", |
4a65a3b9 |
779 | align, align, align); |
0f5d12e9 |
780 | } |
a8f6f123 |
781 | fprintf(fp,"\tmemcpy(ptr, %s, sizeof(%s) * %d);\n", |
782 | fld->name, getTypeStr(td), td->size); |
783 | fprintf(fp,"\tptr += sizeof(%s) * %d;\n\n", getTypeStr(td), td->size); |
784 | } |
785 | } |
3888436c |
786 | if(structCount + seqCount > 1) fprintf(fp,"\n"); |
787 | |
276a9e6f |
788 | |
789 | |
790 | |
791 | //declare a char pointer if needed : starts at the end of the structs. |
792 | //if(structCount + hasStrSeq > 1) { |
793 | // fprintf(fp,"\t\tchar * ptr = (char*)buff + header_length"); |
794 | // for(pos1=0;pos1<structCount;pos1++){ |
795 | // fprintf(fp," + sizeof(struct %s_%s_%d)",ev->name, facName,pos1+1); |
796 | // } |
797 | // if(structCount + hasStrSeq > 1) fprintf(fp,";\n"); |
798 | //} |
799 | |
800 | // Declare an alias pointer of the struct type to the beginning |
801 | // of the reserved area, just after the event header. |
802 | if(ev->type != 0) { |
803 | unsigned align = max(alignment, td->alignment); |
804 | if(align > 1) { |
805 | fprintf(fp,"\t\tptr+=(%u - ((unsigned int)ptr&(%u-1)))&(%u-1);\n", |
806 | align, align, align); |
807 | } |
808 | |
809 | fprintf(fp, "\t\t__1 = (struct %s_%s_1 *)(ptr);\n", |
810 | ev->name, facName); |
811 | } |
812 | //allocate memory for new struct and initialize it |
813 | //if(whichTypeFirst == 1){ //struct first |
814 | //for(pos1=0;pos1<structCount;pos1++){ |
815 | // if(pos1==0) fprintf(fp, |
816 | // "\tstruct %s_%s_1 * __1 = (struct %s_%s_1 *)buff;\n", |
817 | // ev->name, facName,ev->name, facName); |
818 | //MD disabled else fprintf(fp, |
819 | // "\tstruct %s_%s_%d __%d;\n", |
820 | // ev->name, facName,pos1+1,pos1+1); |
821 | //} |
822 | //}else if(whichTypeFirst == 2){ |
823 | // for(pos1=0;pos1<structCount;pos1++) |
824 | // fprintf(fp,"\tstruct %s_%s_%d __%d;\n", |
825 | // ev->name, facName,pos1+1,pos1+1); |
826 | //} |
827 | fprintf(fp,"\n"); |
828 | |
829 | if(structCount) fprintf(fp,"\t\t//initialize structs\n"); |
830 | //flag = 0; |
831 | //structCount = 0; |
832 | if(ev->type != 0) |
833 | for(pos1 = 0; pos1 < ev->type->fields.position; pos1++){ |
834 | fld = (field *)ev->type->fields.array[pos1]; |
835 | td = fld->type; |
836 | if(td->type != ARRAY && td->type != SEQUENCE && td->type != STRING){ |
837 | //if(flag == 0){ |
838 | // flag = 1; |
839 | // structCount++; |
840 | // if(structCount > 1) fprintf(fp,"\n"); |
841 | //} |
842 | fprintf(fp, "\t\t__1->%s = %s;\n", fld->name, fld->name ); |
843 | |
844 | //if(structCount == 1 && whichTypeFirst == 1) |
845 | // fprintf(fp, "\t__1->%s = %s;\n",fld->name,fld->name ); |
846 | //else |
847 | // fprintf(fp, "\t__%d.%s = %s;\n",structCount ,fld->name,fld->name); |
848 | } |
849 | //else flag = 0; |
850 | } |
851 | if(structCount) fprintf(fp,"\n"); |
852 | //set ptr to the end of first struct if needed; |
853 | //if(structCount + hasStrSeq > 1){ |
854 | // fprintf(fp,"\n\t\t//set ptr to the end of the first struct\n"); |
855 | // fprintf(fp,"\t\tptr += sizeof(struct %s_%s_1);\n\n",ev->name, facName); |
856 | //} |
857 | |
d7ed29cd |
858 | fprintf(fp,"\n"); |
859 | fprintf(fp, "\t\t/* Commit the work */\n"); |
a8f6f123 |
860 | fprintf(fp, "\t\trelay_commit(channel->rchan->buf[smp_processor_id()],\n" |
861 | "\t\t\t\tbuff, event_length);\n"); |
1bedc199 |
862 | fprintf(fp, "\t\tltt_write_commit_counter(" |
863 | "channel->rchan->buf[smp_processor_id()],\n" |
864 | "\t\t\t\tbuff);\n"); |
d7ed29cd |
865 | |
866 | /* End of traces iteration */ |
867 | fprintf(fp, "\t}\n\n"); |
868 | |
a8f6f123 |
869 | fprintf(fp, "\n"); |
1bedc199 |
870 | // The generated preempt_check_resched is not dangerous because |
871 | // interrupts are disabled. |
872 | fprintf(fp, "\tspin_unlock(<t_traces.locks[smp_processor_id()]);\n"); |
2f74104a |
873 | |
874 | fprintf(fp, "unlock:\n"); |
1bedc199 |
875 | fprintf(fp, "\tbarrier();\n"); |
2f74104a |
876 | fprintf(fp, "\tltt_nesting[smp_processor_id()]--;\n"); |
877 | fprintf(fp, "\t/* Re-enable interrupts */\n"); |
878 | fprintf(fp, "\tlocal_irq_restore(_flags);\n"); |
1bedc199 |
879 | fprintf(fp, "\tpreempt_enable_no_resched();\n"); |
2f74104a |
880 | //fprintf(fp, "\tpreempt_check_resched();\n"); |
881 | |
3888436c |
882 | //call trace function |
d7ed29cd |
883 | //fprintf(fp,"\n\t//call trace function\n"); |
884 | //fprintf(fp,"\tltt_log_event(ltt_facility_%s_%X, %s, bufLength, buff);\n",facName,checksum,ev->name); |
1bedc199 |
885 | fprintf(fp,"}\n"); |
886 | fprintf(fp, "#endif //CONFIG_LTT\n\n"); |
3888436c |
887 | } |
888 | |
889 | } |
890 | |
891 | /***************************************************************************** |
892 | *Function name |
893 | * getTypeStr : generate type string |
894 | *Input Params |
895 | * td : a type descriptor |
896 | *Return Values |
897 | * char * : type string |
898 | ****************************************************************************/ |
899 | char * getTypeStr(type_descriptor * td){ |
900 | type_descriptor * t ; |
901 | |
902 | switch(td->type){ |
903 | case INT: |
904 | return intOutputTypes[td->size]; |
905 | case UINT: |
906 | return uintOutputTypes[td->size]; |
31cbc5d3 |
907 | case POINTER: |
908 | return "void *"; |
909 | case LONG: |
910 | return "long"; |
911 | case ULONG: |
912 | return "unsigned long"; |
913 | case SIZE_T: |
914 | return "size_t"; |
915 | case SSIZE_T: |
916 | return "ssize_t"; |
917 | case OFF_T: |
918 | return "off_t"; |
3888436c |
919 | case FLOAT: |
920 | return floatOutputTypes[td->size]; |
921 | case STRING: |
a8f6f123 |
922 | return "const char"; |
3888436c |
923 | case ENUM: |
924 | return uintOutputTypes[td->size]; |
925 | case ARRAY: |
926 | case SEQUENCE: |
927 | t = td->nested_type; |
928 | switch(t->type){ |
929 | case INT: |
a8f6f123 |
930 | return intOutputTypes[t->size]; |
3888436c |
931 | case UINT: |
a8f6f123 |
932 | return uintOutputTypes[t->size]; |
31cbc5d3 |
933 | case POINTER: |
934 | return "void *"; |
935 | case LONG: |
936 | return "long"; |
937 | case ULONG: |
938 | return "unsigned long"; |
939 | case SIZE_T: |
940 | return "size_t"; |
941 | case SSIZE_T: |
942 | return "ssize_t"; |
943 | case OFF_T: |
944 | return "off_t"; |
3888436c |
945 | case FLOAT: |
a8f6f123 |
946 | return floatOutputTypes[t->size]; |
3888436c |
947 | case STRING: |
a8f6f123 |
948 | return "const char"; |
3888436c |
949 | case ENUM: |
a8f6f123 |
950 | return uintOutputTypes[t->size]; |
3888436c |
951 | default : |
a8f6f123 |
952 | error_callback(NULL,"Nested struct is not supportted"); |
953 | break; |
3888436c |
954 | } |
955 | break; |
956 | case STRUCT: //for now we do not support nested struct |
957 | error_callback(NULL,"Nested struct is not supportted"); |
958 | break; |
959 | default: |
960 | error_callback(NULL,"No type information"); |
961 | break; |
962 | } |
963 | return NULL; |
964 | } |
965 | |
966 | /***************************************************************************** |
967 | *Function name |
6d387597 |
968 | * generateLoaderfile: generate a facility loaded .h file |
3888436c |
969 | *Input Params |
970 | * fp : file to be written to |
971 | * facName : name of facility |
972 | * nbEvent : number of events in the facility |
973 | * checksum : checksum for the facility |
974 | ****************************************************************************/ |
8c6ca411 |
975 | void generateLoaderfile(FILE * fp, char * facName, int nbEvent, unsigned long checksum, char *capname){ |
a8f6f123 |
976 | fprintf(fp, "#ifndef _LTT_FACILITY_LOADER_%s_H_\n",capname); |
977 | fprintf(fp, "#define _LTT_FACILITY_LOADER_%s_H_\n\n",capname); |
8c6ca411 |
978 | fprintf(fp,"#include <linux/ltt-facilities.h>\n", facName, checksum); |
44cac8a9 |
979 | fprintf(fp,"ltt_facility_t\tltt_facility_%s;\n", facName, checksum); |
6d387597 |
980 | fprintf(fp,"ltt_facility_t\tltt_facility_%s_%X;\n\n", facName, checksum); |
981 | |
a8f6f123 |
982 | fprintf(fp,"#define LTT_FACILITY_SYMBOL\t\t\t\t\t\t\tltt_facility_%s\n", |
44cac8a9 |
983 | facName); |
a8f6f123 |
984 | fprintf(fp,"#define LTT_FACILITY_CHECKSUM_SYMBOL\t\tltt_facility_%s_%X\n", |
6d387597 |
985 | facName, checksum); |
a8f6f123 |
986 | fprintf(fp,"#define LTT_FACILITY_CHECKSUM\t\t\t\t\t\t0x%X\n", checksum); |
987 | fprintf(fp,"#define LTT_FACILITY_NAME\t\t\t\t\t\t\t\t\"%s\"\n", facName); |
988 | fprintf(fp,"#define LTT_FACILITY_NUM_EVENTS\t\t\t\t\t%d\n\n", nbEvent); |
989 | fprintf(fp, "#endif //_LTT_FACILITY_LOADER_%s_H_\n",capname); |
990 | } |
991 | |
992 | void generateCfile(FILE * fp, char * filefacname){ |
993 | |
994 | fprintf(fp, "/*\n"); |
995 | fprintf(fp, " * ltt-facility-loader-%s.c\n", filefacname); |
996 | fprintf(fp, " *\n"); |
997 | fprintf(fp, " * (C) Copyright 2005 - \n"); |
998 | fprintf(fp, " * Mathieu Desnoyers (mathieu.desnoyers@polymtl.ca)\n"); |
999 | fprintf(fp, " *\n"); |
1000 | fprintf(fp, " * Contains the LTT facility loader.\n"); |
1001 | fprintf(fp, " *\n"); |
1002 | fprintf(fp, " */\n"); |
1003 | fprintf(fp, "\n"); |
1004 | fprintf(fp, "\n"); |
1005 | fprintf(fp, "#include <linux/ltt-facilities.h>\n"); |
1006 | fprintf(fp, "#include <linux/module.h>\n"); |
1007 | fprintf(fp, "#include <linux/init.h>\n"); |
1008 | fprintf(fp, "#include <linux/config.h>\n"); |
1009 | fprintf(fp, "#include \"ltt-facility-loader-%s.h\"\n", filefacname); |
1010 | fprintf(fp, "\n"); |
1011 | fprintf(fp, "\n"); |
1012 | fprintf(fp, "#ifdef CONFIG_LTT\n"); |
1013 | fprintf(fp, "\n"); |
1014 | fprintf(fp, "EXPORT_SYMBOL(LTT_FACILITY_SYMBOL);\n"); |
1015 | fprintf(fp, "EXPORT_SYMBOL(LTT_FACILITY_CHECKSUM_SYMBOL);\n"); |
1016 | fprintf(fp, "\n"); |
1017 | fprintf(fp, "static const char ltt_facility_name[] = LTT_FACILITY_NAME;\n"); |
1018 | fprintf(fp, "\n"); |
1019 | fprintf(fp, "#define SYMBOL_STRING(sym) #sym\n"); |
1020 | fprintf(fp, "\n"); |
1021 | fprintf(fp, "static struct ltt_facility facility = {\n"); |
1022 | fprintf(fp, "\t.name = ltt_facility_name,\n"); |
1023 | fprintf(fp, "\t.num_events = LTT_FACILITY_NUM_EVENTS,\n"); |
1024 | fprintf(fp, "\t.checksum = LTT_FACILITY_CHECKSUM,\n"); |
e8907e11 |
1025 | fprintf(fp, "\t.symbol = SYMBOL_STRING(LTT_FACILITY_SYMBOL),\n"); |
1026 | fprintf(fp, "\t.alignment = %u\n", alignment); /* default alignment */ |
a8f6f123 |
1027 | fprintf(fp, "};\n"); |
1028 | fprintf(fp, "\n"); |
1029 | fprintf(fp, "#ifndef MODULE\n"); |
1030 | fprintf(fp, "\n"); |
1031 | fprintf(fp, "/* Built-in facility. */\n"); |
1032 | fprintf(fp, "\n"); |
1033 | fprintf(fp, "static int __init facility_init(void)\n"); |
1034 | fprintf(fp, "{\n"); |
1035 | fprintf(fp, "\tprintk(KERN_INFO \"LTT : ltt-facility-%s init in kernel\\n\");\n", filefacname); |
1036 | fprintf(fp, "\n"); |
1037 | fprintf(fp, "\tLTT_FACILITY_SYMBOL = ltt_facility_builtin_register(&facility);\n"); |
1038 | fprintf(fp, "\tLTT_FACILITY_CHECKSUM_SYMBOL = LTT_FACILITY_SYMBOL;\n"); |
1039 | fprintf(fp, "\t\n"); |
1040 | fprintf(fp, "\treturn LTT_FACILITY_SYMBOL;\n"); |
1041 | fprintf(fp, "}\n"); |
1042 | fprintf(fp, "__initcall(facility_init);\n"); |
1043 | fprintf(fp, "\n"); |
1044 | fprintf(fp, "\n"); |
1045 | fprintf(fp, "\n"); |
1046 | fprintf(fp, "#else \n"); |
1047 | fprintf(fp, "\n"); |
1048 | fprintf(fp, "/* Dynamic facility. */\n"); |
1049 | fprintf(fp, "\n"); |
1050 | fprintf(fp, "static int __init facility_init(void)\n"); |
1051 | fprintf(fp, "{\n"); |
1052 | fprintf(fp, "\tprintk(KERN_INFO \"LTT : ltt-facility-%s init dynamic\\n\");\n", filefacname); |
1053 | fprintf(fp, "\n"); |
1054 | fprintf(fp, "\tLTT_FACILITY_SYMBOL = ltt_facility_dynamic_register(&facility);\n"); |
1055 | fprintf(fp, "\tLTT_FACILITY_SYMBOL_CHECKSUM = LTT_FACILITY_SYMBOL;\n"); |
1056 | fprintf(fp, "\n"); |
1057 | fprintf(fp, "\treturn LTT_FACILITY_SYMBOL;\n"); |
1058 | fprintf(fp, "}\n"); |
1059 | fprintf(fp, "\n"); |
1060 | fprintf(fp, "static void __exit facility_exit(void)\n"); |
1061 | fprintf(fp, "{\n"); |
1062 | fprintf(fp, "\tint err;\n"); |
1063 | fprintf(fp, "\n"); |
1064 | fprintf(fp, "\terr = ltt_facility_dynamic_unregister(LTT_FACILITY_SYMBOL);\n"); |
1065 | fprintf(fp, "\tif(err != 0)\n"); |
1066 | fprintf(fp, "\t\tprintk(KERN_ERR \"LTT : Error in unregistering facility.\\n\");\n"); |
1067 | fprintf(fp, "\n"); |
1068 | fprintf(fp, "}\n"); |
1069 | fprintf(fp, "\n"); |
1070 | fprintf(fp, "module_init(facility_init)\n"); |
1071 | fprintf(fp, "module_exit(facility_exit)\n"); |
1072 | fprintf(fp, "\n"); |
1073 | fprintf(fp, "\n"); |
1074 | fprintf(fp, "MODULE_LICENSE(\"GPL\");\n"); |
1075 | fprintf(fp, "MODULE_AUTHOR(\"Mathieu Desnoyers\");\n"); |
1076 | fprintf(fp, "MODULE_DESCRIPTION(\"Linux Trace Toolkit Facility\");\n"); |
1077 | fprintf(fp, "\n"); |
1078 | fprintf(fp, "#endif //MODULE\n"); |
1079 | fprintf(fp, "\n"); |
1080 | fprintf(fp, "#endif //CONFIG_LTT\n"); |
3888436c |
1081 | } |
1082 | |
1083 | |