| 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> |
| 39 | #include <ctype.h> |
| 40 | #include <stdio.h> |
| 41 | #include <stdarg.h> |
| 42 | #include <linux/errno.h> |
| 43 | #include <assert.h> |
| 44 | |
| 45 | #include "parser.h" |
| 46 | #include "genevent.h" |
| 47 | |
| 48 | #define max(a,b) ((a)<(b))?(b):(a) |
| 49 | |
| 50 | /* Named types may be referenced from anywhere */ |
| 51 | |
| 52 | facility_t * fac; |
| 53 | |
| 54 | unsigned alignment = 0; |
| 55 | |
| 56 | int main(int argc, char** argv) |
| 57 | { |
| 58 | char *token; |
| 59 | parse_file_t 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"); |
| 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"); |
| 69 | exit(1); |
| 70 | } |
| 71 | |
| 72 | in.buffer = buffer; |
| 73 | in.error = error_callback; |
| 74 | |
| 75 | for(i = 1 ; i < argc ; i++) { |
| 76 | |
| 77 | if(strcmp("-a", argv[i])==0) { |
| 78 | if(i >= argc-1) { |
| 79 | printf("Error : missing argument to -a\n"); |
| 80 | exit(1); |
| 81 | } else i++; |
| 82 | alignment = atoi(argv[i]); |
| 83 | } else { |
| 84 | |
| 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_t)); |
| 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 | } |
| 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) |
| 143 | { |
| 144 | char *loadName, *hName, *hIdName, *cName, *tmp, *tmp2; |
| 145 | FILE * lFp, *hFp, *iFp, *cFp; |
| 146 | int nbEvent; |
| 147 | unsigned long checksum=0; |
| 148 | |
| 149 | //remove .xml if it exists |
| 150 | tmp = &name[strlen(name)-4]; |
| 151 | if(strcmp(tmp, ".xml") == 0){ |
| 152 | *tmp = '\0'; |
| 153 | } |
| 154 | |
| 155 | tmp = strrchr(name,'/'); |
| 156 | if(tmp){ |
| 157 | tmp++; |
| 158 | }else{ |
| 159 | tmp = name; |
| 160 | } |
| 161 | |
| 162 | loadName = appendString("ltt-facility-loader-", tmp); |
| 163 | tmp2 = appendString(loadName,".h"); |
| 164 | free(loadName); |
| 165 | loadName = tmp2; |
| 166 | hName = appendString("ltt-facility-", tmp); |
| 167 | tmp2 = appendString(hName,".h"); |
| 168 | free(hName); |
| 169 | hName = tmp2; |
| 170 | hIdName = appendString("ltt-facility-id-", tmp); |
| 171 | tmp2 = appendString(hIdName,".h"); |
| 172 | free(hIdName); |
| 173 | hIdName = tmp2; |
| 174 | cName = appendString("ltt-facility-loader-", tmp); |
| 175 | tmp2 = appendString(cName,".c"); |
| 176 | free(cName); |
| 177 | cName = tmp2; |
| 178 | lFp = fopen(loadName,"w"); |
| 179 | if(!lFp){ |
| 180 | printf("Cannot open the file : %s\n",loadName); |
| 181 | exit(1); |
| 182 | } |
| 183 | |
| 184 | hFp = fopen(hName,"w"); |
| 185 | if(!hFp){ |
| 186 | printf("Cannot open the file : %s\n",hName); |
| 187 | exit(1); |
| 188 | } |
| 189 | |
| 190 | iFp = fopen(hIdName,"w"); |
| 191 | if(!iFp){ |
| 192 | printf("Cannot open the file : %s\n",hIdName); |
| 193 | exit(1); |
| 194 | } |
| 195 | |
| 196 | cFp = fopen(cName,"w"); |
| 197 | if(!cFp){ |
| 198 | printf("Cannot open the file : %s\n",cName); |
| 199 | exit(1); |
| 200 | } |
| 201 | |
| 202 | free(loadName); |
| 203 | free(hName); |
| 204 | free(hIdName); |
| 205 | free(cName); |
| 206 | |
| 207 | generateChecksum(fac->name, &checksum, &(fac->events)); |
| 208 | |
| 209 | /* generate .h file, event enumeration then structures and functions */ |
| 210 | fprintf(iFp, "#ifndef _LTT_FACILITY_ID_%s_H_\n",fac->capname); |
| 211 | fprintf(iFp, "#define _LTT_FACILITY_ID_%s_H_\n\n",fac->capname); |
| 212 | fprintf(iFp, "#ifdef CONFIG_LTT\n"); |
| 213 | generateEnumEvent(iFp, fac->name, &nbEvent, checksum); |
| 214 | fprintf(iFp, "#endif //CONFIG_LTT\n"); |
| 215 | fprintf(iFp, "#endif //_LTT_FACILITY_ID_%s_H_\n",fac->capname); |
| 216 | |
| 217 | |
| 218 | fprintf(hFp, "#ifndef _LTT_FACILITY_%s_H_\n",fac->capname); |
| 219 | fprintf(hFp, "#define _LTT_FACILITY_%s_H_\n\n",fac->capname); |
| 220 | //fprintf(hFp, "#ifdef CONFIG_LTT\n"); |
| 221 | generateTypeDefs(hFp, fac->name); |
| 222 | generateStructFunc(hFp, fac->name,checksum); |
| 223 | //fprintf(hFp, "#endif //CONFIG_LTT\n"); |
| 224 | fprintf(hFp, "#endif //_LTT_FACILITY_%s_H_\n",fac->capname); |
| 225 | |
| 226 | /* generate .h file, calls to register the facility at init time */ |
| 227 | generateLoaderfile(lFp,fac->name,nbEvent,checksum,fac->capname); |
| 228 | |
| 229 | // create ltt-facility-loader-facname.c |
| 230 | generateCfile(cFp, tmp); |
| 231 | |
| 232 | fclose(hFp); |
| 233 | fclose(iFp); |
| 234 | fclose(lFp); |
| 235 | fclose(cFp); |
| 236 | |
| 237 | } |
| 238 | |
| 239 | |
| 240 | /***************************************************************************** |
| 241 | *Function name |
| 242 | * generateEnumEvent : output event enum to .h file |
| 243 | *Input Params |
| 244 | * fp : file to be written to |
| 245 | * facName : name of facility |
| 246 | *Output Params |
| 247 | * nbEvent : number of events in the facility |
| 248 | ****************************************************************************/ |
| 249 | void generateEnumEvent(FILE *fp, char *facName, int * nbEvent, |
| 250 | unsigned long checksum) { |
| 251 | int pos = 0; |
| 252 | |
| 253 | fprintf(fp,"#include <linux/ltt-facilities.h>\n\n"); |
| 254 | |
| 255 | fprintf(fp,"/**** facility handle ****/\n\n"); |
| 256 | fprintf(fp,"extern ltt_facility_t ltt_facility_%s_%X;\n",facName, checksum); |
| 257 | fprintf(fp,"extern ltt_facility_t ltt_facility_%s;\n\n\n",facName, checksum); |
| 258 | |
| 259 | fprintf(fp,"/**** event type ****/\n\n"); |
| 260 | fprintf(fp,"enum %s_event {\n",facName); |
| 261 | |
| 262 | for(pos = 0; pos < fac->events.position;pos++) { |
| 263 | fprintf(fp,"\tevent_%s", ((event_t *)(fac->events.array[pos]))->name); |
| 264 | if(pos != fac->events.position-1) fprintf(fp,",\n"); |
| 265 | } |
| 266 | fprintf(fp,"\n};\n\n\n"); |
| 267 | |
| 268 | // fprintf(fp,"/**** number of events in the facility ****/\n\n"); |
| 269 | // fprintf(fp,"int nbEvents_%s = %d;\n\n\n",facName, fac->events.position); |
| 270 | *nbEvent = fac->events.position; |
| 271 | } |
| 272 | |
| 273 | |
| 274 | /***************************************************************************** |
| 275 | *Function name |
| 276 | * printStruct : Generic struct printing function |
| 277 | *Input Params |
| 278 | * fp : file to be written to |
| 279 | * len : number of fields |
| 280 | * array : array of field info |
| 281 | * name : basic struct name |
| 282 | * facName : name of facility |
| 283 | * whichTypeFirst : struct or array/sequence first |
| 284 | * hasStrSeq : string or sequence present? |
| 285 | * structCount : struct postfix |
| 286 | ****************************************************************************/ |
| 287 | |
| 288 | static void |
| 289 | printStruct(FILE * fp, int len, void ** array, char * name, char * facName, |
| 290 | int * whichTypeFirst, int * hasStrSeq, int * structCount, |
| 291 | type_descriptor_t *type) |
| 292 | { |
| 293 | int flag = 0; |
| 294 | int pos; |
| 295 | field_t * fld; |
| 296 | type_descriptor_t * td; |
| 297 | |
| 298 | for (pos = 0; pos < len; pos++) { |
| 299 | fld = (field_t *)array[pos]; |
| 300 | td = fld->type; |
| 301 | if( td->type == STRING || td->type == SEQUENCE || |
| 302 | td->type == ARRAY) { |
| 303 | (*hasStrSeq)++; |
| 304 | } else { |
| 305 | if (flag == 0) { |
| 306 | flag = 1; |
| 307 | fprintf(fp,"struct %s_%s",name, facName); |
| 308 | if (structCount) { |
| 309 | fprintf(fp, "_%d {\n",++*structCount); |
| 310 | } else { |
| 311 | fprintf(fp, " {\n"); |
| 312 | } |
| 313 | } |
| 314 | fprintf(fp, "\t%s %s; /* %s */\n", |
| 315 | getTypeStr(td),fld->name,fld->description ); |
| 316 | } |
| 317 | } |
| 318 | |
| 319 | if(flag) { |
| 320 | unsigned align = max(alignment, type->alignment); |
| 321 | |
| 322 | if(align == 0) |
| 323 | fprintf(fp,"} __attribute__ ((packed));\n\n"); |
| 324 | else { |
| 325 | if(align != 1 && align != 2 |
| 326 | && align != 4 && align != 8) { |
| 327 | printf("Wrong alignment %i, using packed.\n", align); |
| 328 | fprintf(fp,"} __attribute__ ((packed));\n\n"); |
| 329 | } else |
| 330 | fprintf(fp,"} __attribute__ ((aligned(%i)));\n\n", align); |
| 331 | } |
| 332 | } |
| 333 | } |
| 334 | |
| 335 | |
| 336 | /***************************************************************************** |
| 337 | *Function name |
| 338 | * generateHfile : Create the typedefs |
| 339 | *Input Params |
| 340 | * fp : file to be written to |
| 341 | ****************************************************************************/ |
| 342 | void |
| 343 | generateTypeDefs(FILE * fp, char *facName) |
| 344 | { |
| 345 | int pos, tmp = 1; |
| 346 | |
| 347 | fprintf(fp,"#include <linux/types.h>\n"); |
| 348 | fprintf(fp,"#include <linux/spinlock.h>\n"); |
| 349 | fprintf(fp,"#include <linux/ltt/ltt-facility-id-%s.h>\n\n", facName); |
| 350 | fprintf(fp,"#include <linux/ltt-core.h>\n"); |
| 351 | |
| 352 | #if 0 //broken |
| 353 | fprintf(fp, "/**** Basic Type Definitions ****/\n\n"); |
| 354 | |
| 355 | for (pos = 0; pos < fac->named_types.values.position; pos++) { |
| 356 | type_descriptor * type = |
| 357 | (type_descriptor*)fac->named_types.values.array[pos]; |
| 358 | printStruct(fp, type->fields.position, type->fields.array, |
| 359 | "", type->type_name, &tmp, &tmp, NULL); |
| 360 | fprintf(fp, "typedef struct _%s %s;\n\n", |
| 361 | type->type_name, type->type_name); |
| 362 | } |
| 363 | #endif //0 |
| 364 | } |
| 365 | |
| 366 | |
| 367 | /***************************************************************************** |
| 368 | *Function name |
| 369 | * generateEnumDefinition: generate enum definition if it exists |
| 370 | *Input Params |
| 371 | * fp : file to be written to |
| 372 | * fHead : enum type |
| 373 | ****************************************************************************/ |
| 374 | void generateEnumDefinition(FILE * fp, type_descriptor_t * type){ |
| 375 | int pos; |
| 376 | |
| 377 | if(type->already_printed) return; |
| 378 | |
| 379 | fprintf(fp,"enum {\n"); |
| 380 | for(pos = 0; pos < type->labels.position; pos++){ |
| 381 | fprintf(fp,"\tLTT_ENUM_%s", type->labels.array[pos]); |
| 382 | if (pos != type->labels.position - 1) fprintf(fp,","); |
| 383 | if(type->labels_description.array[pos] != NULL) |
| 384 | fprintf(fp,"\t/* %s */\n",type->labels_description.array[pos]); |
| 385 | else |
| 386 | fprintf(fp,"\n"); |
| 387 | } |
| 388 | fprintf(fp,"};\n\n\n"); |
| 389 | |
| 390 | type->already_printed = 1; |
| 391 | } |
| 392 | |
| 393 | /***************************************************************************** |
| 394 | *Function name |
| 395 | * generateStrucTFunc: output structure and function to .h file |
| 396 | *Input Params |
| 397 | * fp : file to be written to |
| 398 | * facName : name of facility |
| 399 | ****************************************************************************/ |
| 400 | void generateStructFunc(FILE * fp, char * facName, unsigned long checksum){ |
| 401 | event_t * ev; |
| 402 | field_t * fld; |
| 403 | type_descriptor_t * td; |
| 404 | int pos, pos1; |
| 405 | int hasStrSeq, flag, structCount, seqCount,strCount, whichTypeFirst=0; |
| 406 | int args_empty; |
| 407 | |
| 408 | for(pos = 0; pos < fac->events.position; pos++){ |
| 409 | ev = (event_t *) fac->events.array[pos]; |
| 410 | //yxx if(ev->nested)continue; |
| 411 | fprintf(fp,"/**** structure and trace function for event: %s ****/\n\n", |
| 412 | ev->name); |
| 413 | //if(ev->type == 0){ // event without type |
| 414 | // fprintf(fp,"static inline void trace_%s_%s(void){\n",facName,ev->name); |
| 415 | // fprintf(fp,"\tltt_log_event(ltt_facility_%s_%X, event_%s, 0, NULL);\n", |
| 416 | // facName,checksum,ev->name); |
| 417 | // fprintf(fp,"};\n\n\n"); |
| 418 | // continue; |
| 419 | //} |
| 420 | |
| 421 | //if fields contain enum, print out enum definition |
| 422 | //MD : fixed in generateEnumDefinition to do not print the same enum |
| 423 | //twice. |
| 424 | if(ev->type != 0) |
| 425 | for(pos1 = 0; pos1 < ev->type->fields.position; pos1++){ |
| 426 | fld = (field_t *)ev->type->fields.array[pos1]; |
| 427 | if(fld->type->type == ENUM) generateEnumDefinition(fp, fld->type); |
| 428 | } |
| 429 | |
| 430 | //default: no string, array or sequence in the event |
| 431 | hasStrSeq = 0; |
| 432 | whichTypeFirst = 0; |
| 433 | structCount = 0; |
| 434 | |
| 435 | //structure for kernel |
| 436 | if(ev->type != 0) |
| 437 | printStruct(fp, ev->type->fields.position, ev->type->fields.array, |
| 438 | ev->name, facName, &whichTypeFirst, &hasStrSeq, &structCount, |
| 439 | ev->type); |
| 440 | |
| 441 | |
| 442 | //trace function : function name and parameters : stub function. |
| 443 | seqCount = 0; |
| 444 | strCount = 0; |
| 445 | fprintf(fp, "#ifndef CONFIG_LTT\n"); |
| 446 | fprintf(fp,"static inline void trace_%s_%s(",facName,ev->name); |
| 447 | |
| 448 | args_empty = 1; |
| 449 | |
| 450 | /* Does it support per trace tracing ? */ |
| 451 | if(ev->per_trace) { |
| 452 | fprintf(fp, "struct ltt_trace_struct *dest_trace"); |
| 453 | args_empty = 0; |
| 454 | } |
| 455 | |
| 456 | /* Does it support per tracefile tracing ? */ |
| 457 | if(ev->per_tracefile) { |
| 458 | if(!args_empty) fprintf(fp, ", "); |
| 459 | fprintf(fp, "unsigned int tracefile_index"); |
| 460 | args_empty = 0; |
| 461 | } |
| 462 | |
| 463 | if(ev->type != 0) { |
| 464 | for(pos1 = 0; pos1 < ev->type->fields.position; pos1++){ |
| 465 | fld = (field_t *)ev->type->fields.array[pos1]; |
| 466 | td = fld->type; |
| 467 | if(!args_empty) fprintf(fp, ", "); |
| 468 | if(td->type == ARRAY ){ |
| 469 | fprintf(fp,"%s * %s",getTypeStr(td), fld->name); |
| 470 | args_empty = 0; |
| 471 | }else if(td->type == STRING){ |
| 472 | fprintf(fp,"short int strlength_%d, %s * %s", |
| 473 | ++strCount, getTypeStr(td), fld->name); |
| 474 | args_empty = 0; |
| 475 | }else if(td->type == SEQUENCE){ |
| 476 | fprintf(fp,"%s seqlength_%d, %s * %s", |
| 477 | uintOutputTypes[td->size], ++seqCount,getTypeStr(td), fld->name); |
| 478 | args_empty = 0; |
| 479 | }else { |
| 480 | fprintf(fp,"%s %s",getTypeStr(td), fld->name); |
| 481 | args_empty = 0; |
| 482 | } |
| 483 | } |
| 484 | } |
| 485 | if(args_empty) fprintf(fp, "void"); |
| 486 | |
| 487 | fprintf(fp,")\n{\n"); |
| 488 | fprintf(fp,"}\n"); |
| 489 | fprintf(fp,"#else\n"); |
| 490 | |
| 491 | //trace function : function name and parameters |
| 492 | seqCount = 0; |
| 493 | strCount = 0; |
| 494 | fprintf(fp,"static inline void trace_%s_%s(",facName,ev->name); |
| 495 | |
| 496 | args_empty = 1; |
| 497 | |
| 498 | /* Does it support per trace tracing ? */ |
| 499 | if(ev->per_trace) { |
| 500 | fprintf(fp, "struct ltt_trace_struct *dest_trace"); |
| 501 | args_empty = 0; |
| 502 | } |
| 503 | |
| 504 | /* Does it support per tracefile tracing ? */ |
| 505 | if(ev->per_tracefile) { |
| 506 | if(!args_empty) fprintf(fp, ", "); |
| 507 | fprintf(fp, "unsigned int tracefile_index"); |
| 508 | args_empty = 0; |
| 509 | } |
| 510 | |
| 511 | if(ev->type != 0) { |
| 512 | for(pos1 = 0; pos1 < ev->type->fields.position; pos1++){ |
| 513 | fld = (field_t *)ev->type->fields.array[pos1]; |
| 514 | td = fld->type; |
| 515 | if(!args_empty) fprintf(fp, ", "); |
| 516 | if(td->type == ARRAY ){ |
| 517 | fprintf(fp,"%s * %s",getTypeStr(td), fld->name); |
| 518 | args_empty = 0; |
| 519 | }else if(td->type == STRING){ |
| 520 | fprintf(fp,"short int strlength_%d, %s * %s", |
| 521 | ++strCount, getTypeStr(td), fld->name); |
| 522 | args_empty = 0; |
| 523 | }else if(td->type == SEQUENCE){ |
| 524 | fprintf(fp,"%s seqlength_%d, %s * %s", |
| 525 | uintOutputTypes[td->size], ++seqCount,getTypeStr(td), fld->name); |
| 526 | args_empty = 0; |
| 527 | }else { |
| 528 | fprintf(fp,"%s %s",getTypeStr(td), fld->name); |
| 529 | args_empty = 0; |
| 530 | } |
| 531 | } |
| 532 | } |
| 533 | if(args_empty) fprintf(fp, "void"); |
| 534 | |
| 535 | fprintf(fp,")\n{\n"); |
| 536 | |
| 537 | //allocate buffer |
| 538 | // MD no more need. fprintf(fp,"\tchar buff[buflength];\n"); |
| 539 | // write directly to the channel |
| 540 | fprintf(fp, "\tunsigned int index;\n"); |
| 541 | fprintf(fp, "\tstruct ltt_channel_struct *channel;\n"); |
| 542 | fprintf(fp, "\tstruct ltt_trace_struct *trace;\n"); |
| 543 | fprintf(fp, "\tvoid *buff;\n"); |
| 544 | fprintf(fp, "\tunsigned int slot_size;\n"); // total size (incl hdr) |
| 545 | fprintf(fp, "\tunsigned int data_size;\n"); // Size of the event var data. |
| 546 | fprintf(fp, "\tunsigned int before_hdr_pad;\n");// Dynamic padding before event header |
| 547 | fprintf(fp, "\tunsigned int after_hdr_pad;\n"); // Dynamic padding after event header |
| 548 | fprintf(fp, "\tstruct rchan_buf *buf;\n"); |
| 549 | fprintf(fp, "\tstruct timeval delta;\n"); |
| 550 | fprintf(fp, "\tu64 tsc;\n"); |
| 551 | fprintf(fp, "\tchar *ptr;\n"); |
| 552 | |
| 553 | if(ev->type != 0) |
| 554 | fprintf(fp, "\tstruct %s_%s_1* __1;\n\n", ev->name, facName); |
| 555 | |
| 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 | |
| 563 | /* Calculate event variable len + event alignment offset. |
| 564 | * Assume that the padding for alignment starts at a void* |
| 565 | * address. */ |
| 566 | fprintf(fp, "\t\tdata_size = 0;\n"); |
| 567 | |
| 568 | for(pos1=0;pos1<structCount;pos1++){ |
| 569 | if(ev->type->alignment > 1) { |
| 570 | fprintf(fp,"\t\t\tdata_size += ltt_align(data_size, %u);\n", |
| 571 | ev->type->alignment); |
| 572 | } |
| 573 | fprintf(fp,"\t\t\tdata_size += sizeof(struct %s_%s_%d);\n", |
| 574 | ev->name,facName,pos1+1); |
| 575 | // if(pos1 != structCount-1) fprintf(fp," + "); |
| 576 | } |
| 577 | |
| 578 | //length of buffer : length of all arrays, sequences and strings |
| 579 | seqCount = 0; |
| 580 | strCount = 0; |
| 581 | flag = 0; |
| 582 | if(ev->type != 0) |
| 583 | for(pos1 = 0; pos1 < ev->type->fields.position; pos1++){ |
| 584 | fld = (field_t *)ev->type->fields.array[pos1]; |
| 585 | td = fld->type; |
| 586 | if(td->type == SEQUENCE || td->type==STRING || td->type==ARRAY){ |
| 587 | if(td->type == SEQUENCE) { |
| 588 | |
| 589 | if(td->alignment > 1) { |
| 590 | fprintf(fp,"\t\t\tdata_size += ltt_align(data_size, %u);\n", |
| 591 | td->alignment); |
| 592 | } |
| 593 | fprintf(fp,"\t\t\tdata_size += sizeof(%s);\n", |
| 594 | uintOutputTypes[td->size]); |
| 595 | |
| 596 | if(td->alignment > 1) { |
| 597 | fprintf(fp,"\t\tdata_size += ltt_align(data_size, %u);\n", |
| 598 | td->alignment); |
| 599 | } |
| 600 | fprintf(fp,"\t\tdata_size += sizeof(%s) * seqlength_%d;\n", |
| 601 | getTypeStr(td), seqCount); |
| 602 | |
| 603 | } else if(td->type==STRING) { |
| 604 | if(td->alignment > 1) { |
| 605 | fprintf(fp,"\t\tdata_size += ltt_align(data_size, %u);\n", |
| 606 | td->alignment); |
| 607 | } |
| 608 | strCount++; |
| 609 | fprintf(fp,"\t\tdata_size += strlength_%d + 1;\n", |
| 610 | strCount); |
| 611 | } |
| 612 | else if(td->type==ARRAY) { |
| 613 | if(td->alignment > 1) { |
| 614 | fprintf(fp,"\t\tdata_size += ltt_align(data_size, %u);\n", |
| 615 | td->alignment); |
| 616 | } |
| 617 | fprintf(fp,"\t\tdata_size += sizeof(%s) * %d;\n", |
| 618 | getTypeStr(td), td->size); |
| 619 | |
| 620 | if(structCount == 0) flag = 1; |
| 621 | } |
| 622 | } |
| 623 | } |
| 624 | |
| 625 | /* We use preempt_disable instead of rcu_read_lock because we want to |
| 626 | * use preempt_enable_no_resched : the only way to be called from the |
| 627 | * scheduler code safely! */ |
| 628 | fprintf(fp, "\tpreempt_disable();\n\n"); |
| 629 | fprintf(fp, "\tltt_nesting[smp_processor_id()]++;\n"); |
| 630 | fprintf(fp, "\tif(ltt_nesting[smp_processor_id()] > 1) goto unlock;\n"); |
| 631 | |
| 632 | if(ev->per_tracefile) { |
| 633 | fprintf(fp, "\tindex = tracefile_index;\n"); |
| 634 | } else { |
| 635 | fprintf(fp, |
| 636 | "\tindex = ltt_get_index_from_facility(ltt_facility_%s_%X,\n"\ |
| 637 | "\t\t\t\tevent_%s);\n", |
| 638 | facName, checksum, ev->name); |
| 639 | } |
| 640 | fprintf(fp,"\n"); |
| 641 | |
| 642 | /* For each trace */ |
| 643 | fprintf(fp, "\tlist_for_each_entry_rcu(trace, <t_traces.head, list) {\n"); |
| 644 | fprintf(fp, "\t\tif(!trace->active) continue;\n\n"); |
| 645 | |
| 646 | if(ev->per_trace) { |
| 647 | fprintf(fp, "\t\tif(dest_trace != trace) continue;\n\n"); |
| 648 | } |
| 649 | //length of buffer : length of all structures |
| 650 | // if(ev->type == 0) fprintf(fp, "0"); |
| 651 | |
| 652 | fprintf(fp, "\t\tchannel = ltt_get_channel_from_index(trace, index);\n"); |
| 653 | fprintf(fp, "\t\tbuf = channel->rchan->buf[smp_processor_id()];\n"); |
| 654 | fprintf(fp, "\n"); |
| 655 | |
| 656 | |
| 657 | /* Relay reserve */ |
| 658 | fprintf(fp, "\t\tslot_size = 0;\n"); |
| 659 | fprintf(fp, "\t\tbuff = ltt_reserve_slot(trace, buf, event_length, &slot_size, &tsc,\n" |
| 660 | "\t\t&before_hdr_pad, &after_hdr_pad);\n"); |
| 661 | /* If error, return */ |
| 662 | fprintf(fp, "if(!buff) return;\n"); |
| 663 | |
| 664 | /* write data */ |
| 665 | |
| 666 | /* Write the header */ |
| 667 | /* FIXME : delta is not set ! */ |
| 668 | fprintf(fp, "\n"); |
| 669 | fprintf(fp, "\t\tltt_write_event_header(trace, channel, buff, \n" |
| 670 | "\t\t\t\tltt_facility_%s_%X, event_%s, data_size, before_hdr_pad,\n" |
| 671 | "\t\t\t\t&delta, &tsc);\n", |
| 672 | facName, checksum, ev->name); |
| 673 | fprintf(fp, "\n"); |
| 674 | |
| 675 | if(ev->type != 0) { |
| 676 | fprintf(fp,"\t\tptr = (char*)buff + before_hdr_pad + header_length + after_hdr_pad;\n"); |
| 677 | |
| 678 | /* Write structures */ |
| 679 | for(pos1=0;pos1<structCount;pos1++){ |
| 680 | if(ev->type->alignment > 1) { |
| 681 | fprintf(fp,"\t\tptr += ltt_align((unsigned long)ptr, %u);\n", |
| 682 | ev->type->alignment); |
| 683 | } |
| 684 | fprintf(fp,"\t\t__%d = (struct %s_%s_%d *)(ptr);\n", |
| 685 | pos1+1, ev->name,facName,pos1+1); |
| 686 | |
| 687 | fprintf(fp,"\t\t/* initialize structs */\n"); |
| 688 | |
| 689 | for(pos1 = 0; pos1 < ev->type->fields.position; pos1++){ |
| 690 | fld = (field_t *)ev->type->fields.array[pos1]; |
| 691 | td = fld->type; |
| 692 | if(td->type != ARRAY && td->type != SEQUENCE && td->type != STRING){ |
| 693 | fprintf(fp, "\t\t__%d->%s = %s;\n", pos1+1, fld->name, fld->name); |
| 694 | } |
| 695 | } |
| 696 | if(structCount) fprintf(fp,"\n"); |
| 697 | } |
| 698 | |
| 699 | } |
| 700 | |
| 701 | |
| 702 | //declare a char pointer if needed : starts at the end of the structs. |
| 703 | //if(structCount + hasStrSeq > 1) { |
| 704 | // fprintf(fp,"\t\tchar * ptr = (char*)buff + header_length"); |
| 705 | // for(pos1=0;pos1<structCount;pos1++){ |
| 706 | // fprintf(fp," + sizeof(struct %s_%s_%d)",ev->name, facName,pos1+1); |
| 707 | // } |
| 708 | // if(structCount + hasStrSeq > 1) fprintf(fp,";\n"); |
| 709 | //} |
| 710 | |
| 711 | // Declare an alias pointer of the struct type to the beginning |
| 712 | // of the reserved area, just after the event header. |
| 713 | if(ev->type != 0) { |
| 714 | |
| 715 | unsigned align = max(alignment, td->alignment); |
| 716 | if(align > 1) { |
| 717 | fprintf(fp,"\t\tptr+=(%u - ((unsigned int)ptr&(%u-1)))&(%u-1);\n", |
| 718 | align, align, align); |
| 719 | } |
| 720 | |
| 721 | fprintf(fp, "\t\t__1 = (struct %s_%s_1 *)(ptr);\n", |
| 722 | ev->name, facName); |
| 723 | } |
| 724 | //allocate memory for new struct and initialize it |
| 725 | //if(whichTypeFirst == 1){ //struct first |
| 726 | //for(pos1=0;pos1<structCount;pos1++){ |
| 727 | // if(pos1==0) fprintf(fp, |
| 728 | // "\tstruct %s_%s_1 * __1 = (struct %s_%s_1 *)buff;\n", |
| 729 | // ev->name, facName,ev->name, facName); |
| 730 | //MD disabled else fprintf(fp, |
| 731 | // "\tstruct %s_%s_%d __%d;\n", |
| 732 | // ev->name, facName,pos1+1,pos1+1); |
| 733 | //} |
| 734 | //}else if(whichTypeFirst == 2){ |
| 735 | // for(pos1=0;pos1<structCount;pos1++) |
| 736 | // fprintf(fp,"\tstruct %s_%s_%d __%d;\n", |
| 737 | // ev->name, facName,pos1+1,pos1+1); |
| 738 | //} |
| 739 | fprintf(fp,"\n"); |
| 740 | |
| 741 | if(structCount) fprintf(fp,"\t\t//initialize structs\n"); |
| 742 | //flag = 0; |
| 743 | //structCount = 0; |
| 744 | if(ev->type != 0) |
| 745 | for(pos1 = 0; pos1 < ev->type->fields.position; pos1++){ |
| 746 | fld = (field_t *)ev->type->fields.array[pos1]; |
| 747 | td = fld->type; |
| 748 | if(td->type != ARRAY && td->type != SEQUENCE && td->type != STRING){ |
| 749 | //if(flag == 0){ |
| 750 | // flag = 1; |
| 751 | // structCount++; |
| 752 | // if(structCount > 1) fprintf(fp,"\n"); |
| 753 | //} |
| 754 | fprintf(fp, "\t\t__1->%s = %s;\n", fld->name, fld->name ); |
| 755 | |
| 756 | //if(structCount == 1 && whichTypeFirst == 1) |
| 757 | // fprintf(fp, "\t__1->%s = %s;\n",fld->name,fld->name ); |
| 758 | //else |
| 759 | // fprintf(fp, "\t__%d.%s = %s;\n",structCount ,fld->name,fld->name); |
| 760 | } |
| 761 | //else flag = 0; |
| 762 | } |
| 763 | if(structCount) fprintf(fp,"\n"); |
| 764 | |
| 765 | |
| 766 | //copy sequence and string to buffer |
| 767 | seqCount = 0; |
| 768 | strCount = 0; |
| 769 | flag = 0; |
| 770 | structCount = 0; |
| 771 | if(ev->type != 0) |
| 772 | for(pos1 = 0; pos1 < ev->type->fields.position; pos1++){ |
| 773 | fld = (field_t *)ev->type->fields.array[pos1]; |
| 774 | td = fld->type; |
| 775 | // if(td->type != STRING && td->type != SEQUENCE && td->type != ARRAY){ |
| 776 | // if(flag == 0) structCount++; |
| 777 | // flag++; |
| 778 | // if((structCount > 1 || whichTypeFirst == 2) && flag == 1){ |
| 779 | // assert(0); // MD : disabled ! |
| 780 | // fprintf(fp,"\t//copy struct to buffer\n"); |
| 781 | // fprintf(fp,"\tmemcpy(ptr, &__%d, sizeof(struct %s_%s_%d));\n", |
| 782 | // structCount, ev->name, facName,structCount); |
| 783 | // fprintf(fp,"\tptr += sizeof(struct %s_%s_%d);\n\n", |
| 784 | // ev->name, facName,structCount); |
| 785 | // } |
| 786 | // } |
| 787 | //else if(td->type == SEQUENCE){ |
| 788 | if(td->type == SEQUENCE){ |
| 789 | flag = 0; |
| 790 | fprintf(fp,"\t\t//copy sequence length and sequence to buffer\n"); |
| 791 | |
| 792 | unsigned align = max(alignment, td->alignment); |
| 793 | if(align > 1) { |
| 794 | fprintf(fp,"\t\tptr+=(%u - ((unsigned int)ptr&(%u-1)))&(%u-1);\n", |
| 795 | align, align, align); |
| 796 | } |
| 797 | fprintf(fp,"\t\t*ptr = seqlength_%d;\n",++seqCount); |
| 798 | fprintf(fp,"\t\tptr += sizeof(%s);\n",uintOutputTypes[td->size]); |
| 799 | if(align > 1) { |
| 800 | fprintf(fp,"\t\tptr+=(%u - ((unsigned int)ptr&(%u-1)))&(%u-1);\n", |
| 801 | align, align, align); |
| 802 | } |
| 803 | fprintf(fp,"\t\tmemcpy(ptr, %s, sizeof(%s) * seqlength_%d);\n", |
| 804 | fld->name, getTypeStr(td), seqCount); |
| 805 | fprintf(fp,"\t\tptr += sizeof(%s) * seqlength_%d;\n\n", |
| 806 | getTypeStr(td), seqCount); |
| 807 | } |
| 808 | else if(td->type==STRING){ |
| 809 | flag = 0; |
| 810 | fprintf(fp,"\t\t//copy string to buffer\n"); |
| 811 | fprintf(fp,"\t\tif(strlength_%d > 0){\n",++strCount); |
| 812 | unsigned align = max(alignment, td->alignment); |
| 813 | if(align > 1) { |
| 814 | fprintf(fp,"\t\tptr+=(%u - ((unsigned int)ptr&(%u-1)))&(%u-1);\n", |
| 815 | align, align, align); |
| 816 | } |
| 817 | fprintf(fp,"\t\t\tmemcpy(ptr, %s, strlength_%d + 1);\n", |
| 818 | fld->name, strCount); |
| 819 | fprintf(fp,"\t\t\tptr += strlength_%d + 1;\n",strCount); |
| 820 | fprintf(fp,"\t\t}else{\n"); |
| 821 | fprintf(fp,"\t\t\t*ptr = '\\0';\n"); |
| 822 | fprintf(fp,"\t\t\tptr += 1;\n"); |
| 823 | fprintf(fp,"\t\t}\n\n"); |
| 824 | }else if(td->type==ARRAY){ |
| 825 | flag = 0; |
| 826 | fprintf(fp,"\t//copy array to buffer\n"); |
| 827 | unsigned align = max(alignment, td->alignment); |
| 828 | if(align > 1) { |
| 829 | fprintf(fp,"\t\tptr+=(%u - ((unsigned int)ptr&(%u-1)))&(%u-1);\n", |
| 830 | align, align, align); |
| 831 | } |
| 832 | fprintf(fp,"\tmemcpy(ptr, %s, sizeof(%s) * %d);\n", |
| 833 | fld->name, getTypeStr(td), td->size); |
| 834 | fprintf(fp,"\tptr += sizeof(%s) * %d;\n\n", getTypeStr(td), td->size); |
| 835 | } |
| 836 | } |
| 837 | if(structCount + seqCount > 1) fprintf(fp,"\n"); |
| 838 | |
| 839 | |
| 840 | |
| 841 | |
| 842 | /* commit */ |
| 843 | ltt_commit_slot(buf, buff, slot_size); |
| 844 | |
| 845 | |
| 846 | |
| 847 | |
| 848 | #if 0 |
| 849 | fprintf(fp, "\t\tdo {\n"); |
| 850 | fprintf(fp, "\t\t\told_offset = buf->offset;\n"); |
| 851 | fprintf(fp, "\t\t\tptr = (char*)buf->data + old_offset;\n"); |
| 852 | |
| 853 | |
| 854 | fprintf(fp, "\t\t\theader_length = ltt_get_event_header_data(trace, " |
| 855 | "channel,\n" |
| 856 | "\t\t\t\t\t\t\t\t\t\tptr, &_offset, &delta, &tsc);\n"); |
| 857 | |
| 858 | fprintf(fp, "\t\t\tptr += _offset + header_length;\n"); |
| 859 | |
| 860 | fprintf(fp, "\t\t\tbuff = relay_reserve(channel->rchan, event_length, " |
| 861 | "old_offset);\n"); |
| 862 | fprintf(fp, "\n"); |
| 863 | fprintf(fp, "\t\t} while(PTR_ERR(buff) == -EAGAIN);\n"); |
| 864 | fprintf(fp, "\n"); |
| 865 | |
| 866 | |
| 867 | /* Reserve the channel */ |
| 868 | //fprintf(fp, "\t\tbuff = relay_reserve(channel->rchan, event_length);\n"); |
| 869 | fprintf(fp, "\t\tif(buff == NULL) {\n"); |
| 870 | fprintf(fp, "\t\t\t/* Buffer is full*/\n"); |
| 871 | fprintf(fp, "\t\t\t/* for debug BUG(); */\n"); // DEBUG! |
| 872 | fprintf(fp, "\t\t\tchannel->events_lost[smp_processor_id()]++;\n"); |
| 873 | fprintf(fp, "\t\t\tbreak;\n"); /* don't commit a NULL reservation! */ |
| 874 | fprintf(fp, "\t\t}\n"); |
| 875 | |
| 876 | /* DEBUG */ |
| 877 | //fprintf(fp, "\t\tif(resret == 1) {\n"); |
| 878 | //fprintf(fp, "printk(\"f%%lu e\%%u \", ltt_facility_%s_%X, event_%s);", |
| 879 | // facName, checksum, ev->name); |
| 880 | //fprintf(fp, "\t\t}\n"); |
| 881 | |
| 882 | //set ptr to the end of first struct if needed; |
| 883 | //if(structCount + hasStrSeq > 1){ |
| 884 | // fprintf(fp,"\n\t\t//set ptr to the end of the first struct\n"); |
| 885 | // fprintf(fp,"\t\tptr += sizeof(struct %s_%s_1);\n\n",ev->name, facName); |
| 886 | //} |
| 887 | |
| 888 | fprintf(fp,"\n"); |
| 889 | fprintf(fp, "\t\t/* Commit the work */\n"); |
| 890 | fprintf(fp, "\t\trelay_commit(channel->rchan->buf[smp_processor_id()],\n" |
| 891 | "\t\t\t\tbuff, event_length);\n"); |
| 892 | fprintf(fp, "\t\tltt_write_commit_counter(" |
| 893 | "channel->rchan->buf[smp_processor_id()],\n" |
| 894 | "\t\t\t\tbuff);\n"); |
| 895 | #endif //0 |
| 896 | |
| 897 | /* End of traces iteration */ |
| 898 | fprintf(fp, "\t}\n\n"); |
| 899 | |
| 900 | fprintf(fp, "\n"); |
| 901 | |
| 902 | fprintf(fp, "unlock:\n"); |
| 903 | fprintf(fp, "\tltt_nesting[smp_processor_id()]--;\n"); |
| 904 | fprintf(fp, "\tpreempt_enable_no_resched();\n"); |
| 905 | //fprintf(fp, "\tpreempt_check_resched();\n"); |
| 906 | |
| 907 | //call trace function |
| 908 | //fprintf(fp,"\n\t//call trace function\n"); |
| 909 | //fprintf(fp,"\tltt_log_event(ltt_facility_%s_%X, %s, bufLength, buff);\n",facName,checksum,ev->name); |
| 910 | fprintf(fp,"}\n"); |
| 911 | fprintf(fp, "#endif //CONFIG_LTT\n\n"); |
| 912 | } |
| 913 | |
| 914 | } |
| 915 | |
| 916 | /***************************************************************************** |
| 917 | *Function name |
| 918 | * getTypeStr : generate type string |
| 919 | *Input Params |
| 920 | * td : a type descriptor |
| 921 | *Return Values |
| 922 | * char * : type string |
| 923 | ****************************************************************************/ |
| 924 | char * getTypeStr(type_descriptor_t * td){ |
| 925 | type_descriptor_t * t ; |
| 926 | |
| 927 | switch(td->type){ |
| 928 | case INT: |
| 929 | return intOutputTypes[td->size]; |
| 930 | case UINT: |
| 931 | return uintOutputTypes[td->size]; |
| 932 | case POINTER: |
| 933 | return "void *"; |
| 934 | case LONG: |
| 935 | return "long"; |
| 936 | case ULONG: |
| 937 | return "unsigned long"; |
| 938 | case SIZE_T: |
| 939 | return "size_t"; |
| 940 | case SSIZE_T: |
| 941 | return "ssize_t"; |
| 942 | case OFF_T: |
| 943 | return "off_t"; |
| 944 | case FLOAT: |
| 945 | return floatOutputTypes[td->size]; |
| 946 | case STRING: |
| 947 | return "const char"; |
| 948 | case ENUM: |
| 949 | return uintOutputTypes[td->size]; |
| 950 | case ARRAY: |
| 951 | case SEQUENCE: |
| 952 | t = td->nested_type; |
| 953 | switch(t->type){ |
| 954 | case INT: |
| 955 | return intOutputTypes[t->size]; |
| 956 | case UINT: |
| 957 | return uintOutputTypes[t->size]; |
| 958 | case POINTER: |
| 959 | return "void *"; |
| 960 | case LONG: |
| 961 | return "long"; |
| 962 | case ULONG: |
| 963 | return "unsigned long"; |
| 964 | case SIZE_T: |
| 965 | return "size_t"; |
| 966 | case SSIZE_T: |
| 967 | return "ssize_t"; |
| 968 | case OFF_T: |
| 969 | return "off_t"; |
| 970 | case FLOAT: |
| 971 | return floatOutputTypes[t->size]; |
| 972 | case STRING: |
| 973 | return "const char"; |
| 974 | case ENUM: |
| 975 | return uintOutputTypes[t->size]; |
| 976 | default : |
| 977 | error_callback(NULL,"Nested struct is not supportted"); |
| 978 | break; |
| 979 | } |
| 980 | break; |
| 981 | case STRUCT: //for now we do not support nested struct |
| 982 | error_callback(NULL,"Nested struct is not supportted"); |
| 983 | break; |
| 984 | default: |
| 985 | error_callback(NULL,"No type information"); |
| 986 | break; |
| 987 | } |
| 988 | return NULL; |
| 989 | } |
| 990 | |
| 991 | /***************************************************************************** |
| 992 | *Function name |
| 993 | * generateLoaderfile: generate a facility loaded .h file |
| 994 | *Input Params |
| 995 | * fp : file to be written to |
| 996 | * facName : name of facility |
| 997 | * nbEvent : number of events in the facility |
| 998 | * checksum : checksum for the facility |
| 999 | ****************************************************************************/ |
| 1000 | void generateLoaderfile(FILE * fp, char * facName, int nbEvent, unsigned long checksum, char *capname){ |
| 1001 | fprintf(fp, "#ifndef _LTT_FACILITY_LOADER_%s_H_\n",capname); |
| 1002 | fprintf(fp, "#define _LTT_FACILITY_LOADER_%s_H_\n\n",capname); |
| 1003 | fprintf(fp,"#include <linux/ltt-facilities.h>\n", facName, checksum); |
| 1004 | fprintf(fp,"ltt_facility_t\tltt_facility_%s;\n", facName, checksum); |
| 1005 | fprintf(fp,"ltt_facility_t\tltt_facility_%s_%X;\n\n", facName, checksum); |
| 1006 | |
| 1007 | fprintf(fp,"#define LTT_FACILITY_SYMBOL\t\t\t\t\t\t\tltt_facility_%s\n", |
| 1008 | facName); |
| 1009 | fprintf(fp,"#define LTT_FACILITY_CHECKSUM_SYMBOL\t\tltt_facility_%s_%X\n", |
| 1010 | facName, checksum); |
| 1011 | fprintf(fp,"#define LTT_FACILITY_CHECKSUM\t\t\t\t\t\t0x%X\n", checksum); |
| 1012 | fprintf(fp,"#define LTT_FACILITY_NAME\t\t\t\t\t\t\t\t\"%s\"\n", facName); |
| 1013 | fprintf(fp,"#define LTT_FACILITY_NUM_EVENTS\t\t\t\t\t%d\n\n", nbEvent); |
| 1014 | fprintf(fp, "#endif //_LTT_FACILITY_LOADER_%s_H_\n",capname); |
| 1015 | } |
| 1016 | |
| 1017 | void generateCfile(FILE * fp, char * filefacname){ |
| 1018 | |
| 1019 | fprintf(fp, "/*\n"); |
| 1020 | fprintf(fp, " * ltt-facility-loader-%s.c\n", filefacname); |
| 1021 | fprintf(fp, " *\n"); |
| 1022 | fprintf(fp, " * (C) Copyright 2005 - \n"); |
| 1023 | fprintf(fp, " * Mathieu Desnoyers (mathieu.desnoyers@polymtl.ca)\n"); |
| 1024 | fprintf(fp, " *\n"); |
| 1025 | fprintf(fp, " * Contains the LTT facility loader.\n"); |
| 1026 | fprintf(fp, " *\n"); |
| 1027 | fprintf(fp, " */\n"); |
| 1028 | fprintf(fp, "\n"); |
| 1029 | fprintf(fp, "\n"); |
| 1030 | fprintf(fp, "#include <linux/ltt-facilities.h>\n"); |
| 1031 | fprintf(fp, "#include <linux/module.h>\n"); |
| 1032 | fprintf(fp, "#include <linux/init.h>\n"); |
| 1033 | fprintf(fp, "#include <linux/config.h>\n"); |
| 1034 | fprintf(fp, "#include \"ltt-facility-loader-%s.h\"\n", filefacname); |
| 1035 | fprintf(fp, "\n"); |
| 1036 | fprintf(fp, "\n"); |
| 1037 | fprintf(fp, "#ifdef CONFIG_LTT\n"); |
| 1038 | fprintf(fp, "\n"); |
| 1039 | fprintf(fp, "EXPORT_SYMBOL(LTT_FACILITY_SYMBOL);\n"); |
| 1040 | fprintf(fp, "EXPORT_SYMBOL(LTT_FACILITY_CHECKSUM_SYMBOL);\n"); |
| 1041 | fprintf(fp, "\n"); |
| 1042 | fprintf(fp, "static const char ltt_facility_name[] = LTT_FACILITY_NAME;\n"); |
| 1043 | fprintf(fp, "\n"); |
| 1044 | fprintf(fp, "#define SYMBOL_STRING(sym) #sym\n"); |
| 1045 | fprintf(fp, "\n"); |
| 1046 | fprintf(fp, "static struct ltt_facility facility = {\n"); |
| 1047 | fprintf(fp, "\t.name = ltt_facility_name,\n"); |
| 1048 | fprintf(fp, "\t.num_events = LTT_FACILITY_NUM_EVENTS,\n"); |
| 1049 | fprintf(fp, "\t.checksum = LTT_FACILITY_CHECKSUM,\n"); |
| 1050 | fprintf(fp, "\t.symbol = SYMBOL_STRING(LTT_FACILITY_SYMBOL),\n"); |
| 1051 | fprintf(fp, "\t.alignment = %u\n", alignment); /* default alignment */ |
| 1052 | fprintf(fp, "};\n"); |
| 1053 | fprintf(fp, "\n"); |
| 1054 | fprintf(fp, "#ifndef MODULE\n"); |
| 1055 | fprintf(fp, "\n"); |
| 1056 | fprintf(fp, "/* Built-in facility. */\n"); |
| 1057 | fprintf(fp, "\n"); |
| 1058 | fprintf(fp, "static int __init facility_init(void)\n"); |
| 1059 | fprintf(fp, "{\n"); |
| 1060 | fprintf(fp, "\tprintk(KERN_INFO \"LTT : ltt-facility-%s init in kernel\\n\");\n", filefacname); |
| 1061 | fprintf(fp, "\n"); |
| 1062 | fprintf(fp, "\tLTT_FACILITY_SYMBOL = ltt_facility_builtin_register(&facility);\n"); |
| 1063 | fprintf(fp, "\tLTT_FACILITY_CHECKSUM_SYMBOL = LTT_FACILITY_SYMBOL;\n"); |
| 1064 | fprintf(fp, "\t\n"); |
| 1065 | fprintf(fp, "\treturn LTT_FACILITY_SYMBOL;\n"); |
| 1066 | fprintf(fp, "}\n"); |
| 1067 | fprintf(fp, "__initcall(facility_init);\n"); |
| 1068 | fprintf(fp, "\n"); |
| 1069 | fprintf(fp, "\n"); |
| 1070 | fprintf(fp, "\n"); |
| 1071 | fprintf(fp, "#else \n"); |
| 1072 | fprintf(fp, "\n"); |
| 1073 | fprintf(fp, "/* Dynamic facility. */\n"); |
| 1074 | fprintf(fp, "\n"); |
| 1075 | fprintf(fp, "static int __init facility_init(void)\n"); |
| 1076 | fprintf(fp, "{\n"); |
| 1077 | fprintf(fp, "\tprintk(KERN_INFO \"LTT : ltt-facility-%s init dynamic\\n\");\n", filefacname); |
| 1078 | fprintf(fp, "\n"); |
| 1079 | fprintf(fp, "\tLTT_FACILITY_SYMBOL = ltt_facility_dynamic_register(&facility);\n"); |
| 1080 | fprintf(fp, "\tLTT_FACILITY_CHECKSUM_SYMBOL = LTT_FACILITY_SYMBOL;\n"); |
| 1081 | fprintf(fp, "\n"); |
| 1082 | fprintf(fp, "\treturn LTT_FACILITY_SYMBOL;\n"); |
| 1083 | fprintf(fp, "}\n"); |
| 1084 | fprintf(fp, "\n"); |
| 1085 | fprintf(fp, "static void __exit facility_exit(void)\n"); |
| 1086 | fprintf(fp, "{\n"); |
| 1087 | fprintf(fp, "\tint err;\n"); |
| 1088 | fprintf(fp, "\n"); |
| 1089 | fprintf(fp, "\terr = ltt_facility_dynamic_unregister(LTT_FACILITY_SYMBOL);\n"); |
| 1090 | fprintf(fp, "\tif(err != 0)\n"); |
| 1091 | fprintf(fp, "\t\tprintk(KERN_ERR \"LTT : Error in unregistering facility.\\n\");\n"); |
| 1092 | fprintf(fp, "\n"); |
| 1093 | fprintf(fp, "}\n"); |
| 1094 | fprintf(fp, "\n"); |
| 1095 | fprintf(fp, "module_init(facility_init)\n"); |
| 1096 | fprintf(fp, "module_exit(facility_exit)\n"); |
| 1097 | fprintf(fp, "\n"); |
| 1098 | fprintf(fp, "\n"); |
| 1099 | fprintf(fp, "MODULE_LICENSE(\"GPL\");\n"); |
| 1100 | fprintf(fp, "MODULE_AUTHOR(\"Mathieu Desnoyers\");\n"); |
| 1101 | fprintf(fp, "MODULE_DESCRIPTION(\"Linux Trace Toolkit Facility\");\n"); |
| 1102 | fprintf(fp, "\n"); |
| 1103 | fprintf(fp, "#endif //MODULE\n"); |
| 1104 | fprintf(fp, "\n"); |
| 1105 | fprintf(fp, "#endif //CONFIG_LTT\n"); |
| 1106 | } |
| 1107 | |
| 1108 | |