| 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 | |
| 44 | |
| 45 | #include "parser.h" |
| 46 | #include "genevent.h" |
| 47 | |
| 48 | /* Named types may be referenced from anywhere */ |
| 49 | |
| 50 | facility * fac; |
| 51 | |
| 52 | int main(int argc, char** argv) |
| 53 | { |
| 54 | char *token; |
| 55 | parse_file in; |
| 56 | char buffer[BUFFER_SIZE]; |
| 57 | int i; |
| 58 | |
| 59 | if(argc < 2){ |
| 60 | printf("At least one event definition file is needed\n"); |
| 61 | exit(1); |
| 62 | } |
| 63 | |
| 64 | in.buffer = buffer; |
| 65 | in.error = error_callback; |
| 66 | |
| 67 | for(i = 1 ; i < argc ; i++) { |
| 68 | in.lineno = 0; |
| 69 | in.name = allocAndCopy(argv[i]); |
| 70 | |
| 71 | in.fp = fopen(in.name, "r"); |
| 72 | if(!in.fp ){ |
| 73 | in.error(&in,"cannot open facility input file"); |
| 74 | } |
| 75 | |
| 76 | while(1){ |
| 77 | token = getToken(&in); |
| 78 | if(in.type == ENDFILE) break; |
| 79 | |
| 80 | if(strcmp(token, "<")) in.error(&in,"not a facility file"); |
| 81 | token = getName(&in); |
| 82 | |
| 83 | if(strcmp("facility",token) == 0) { |
| 84 | fac = memAlloc(sizeof(facility)); |
| 85 | fac->name = NULL; |
| 86 | fac->description = NULL; |
| 87 | sequence_init(&(fac->events)); |
| 88 | table_init(&(fac->named_types)); |
| 89 | sequence_init(&(fac->unnamed_types)); |
| 90 | |
| 91 | parseFacility(&in, fac); |
| 92 | |
| 93 | //check if any namedType is not defined |
| 94 | checkNamedTypesImplemented(&fac->named_types); |
| 95 | } |
| 96 | else in.error(&in,"facility token was expected"); |
| 97 | |
| 98 | generateFile(argv[i]); |
| 99 | |
| 100 | free(fac->name); |
| 101 | free(fac->description); |
| 102 | freeEvents(&fac->events); |
| 103 | sequence_dispose(&fac->events); |
| 104 | freeNamedType(&fac->named_types); |
| 105 | table_dispose(&fac->named_types); |
| 106 | freeTypes(&fac->unnamed_types); |
| 107 | sequence_dispose(&fac->unnamed_types); |
| 108 | free(fac); |
| 109 | } |
| 110 | |
| 111 | free(in.name); |
| 112 | fclose(in.fp); |
| 113 | |
| 114 | } |
| 115 | return 0; |
| 116 | } |
| 117 | |
| 118 | |
| 119 | /***************************************************************************** |
| 120 | *Function name |
| 121 | * generateFile : generate .c and .h file |
| 122 | *Input Params |
| 123 | * name : name of event definition file |
| 124 | ****************************************************************************/ |
| 125 | void generateFile(char *name){ |
| 126 | char *loadName, *hName, *tmp, *tmp2; |
| 127 | FILE * lFp, *hFp; |
| 128 | int nbEvent; |
| 129 | unsigned long checksum=0; |
| 130 | |
| 131 | //remove .xml if it exists |
| 132 | tmp = &name[strlen(name)-4]; |
| 133 | if(strcmp(tmp, ".xml") == 0){ |
| 134 | *tmp = '\0'; |
| 135 | } |
| 136 | |
| 137 | tmp = strrchr(name,'/'); |
| 138 | if(tmp){ |
| 139 | tmp++; |
| 140 | }else{ |
| 141 | tmp = name; |
| 142 | } |
| 143 | |
| 144 | loadName = appendString("ltt-facility-loader-", tmp); |
| 145 | tmp2 = appendString(loadName,".h"); |
| 146 | free(loadName); |
| 147 | loadName = tmp2; |
| 148 | hName = appendString("ltt-facility-", tmp); |
| 149 | tmp2 = appendString(hName,".h"); |
| 150 | free(hName); |
| 151 | hName = tmp2; |
| 152 | lFp = fopen(loadName,"w"); |
| 153 | if(!lFp){ |
| 154 | printf("Cannot open the file : %s\n",loadName); |
| 155 | exit(1); |
| 156 | } |
| 157 | |
| 158 | hFp = fopen(hName,"w"); |
| 159 | if(!hFp){ |
| 160 | printf("Cannot open the file : %s\n",hName); |
| 161 | exit(1); |
| 162 | } |
| 163 | |
| 164 | free(loadName); |
| 165 | free(hName); |
| 166 | |
| 167 | generateChecksum(fac->name, &checksum, &(fac->events)); |
| 168 | |
| 169 | /* generate .h file, event enumeration then structures and functions */ |
| 170 | fprintf(hFp, "#ifndef _LTT_FACILITY_%s_H_\n",fac->capname); |
| 171 | fprintf(hFp, "#define _LTT_FACILITY_%s_H_\n\n",fac->capname); |
| 172 | generateEnumEvent(hFp, fac->name, &nbEvent, checksum); |
| 173 | generateTypeDefs(hFp); |
| 174 | generateStructFunc(hFp, fac->name,checksum); |
| 175 | fprintf(hFp, "#endif //_LTT_FACILITY_%s_H_\n",fac->capname); |
| 176 | |
| 177 | /* generate .h file, calls to register the facility at init time */ |
| 178 | generateLoaderfile(lFp,fac->name,nbEvent,checksum,fac->capname); |
| 179 | |
| 180 | fclose(hFp); |
| 181 | fclose(lFp); |
| 182 | } |
| 183 | |
| 184 | |
| 185 | /***************************************************************************** |
| 186 | *Function name |
| 187 | * generateEnumEvent : output event enum to .h file |
| 188 | *Input Params |
| 189 | * fp : file to be written to |
| 190 | * facName : name of facility |
| 191 | *Output Params |
| 192 | * nbEvent : number of events in the facility |
| 193 | ****************************************************************************/ |
| 194 | void generateEnumEvent(FILE *fp, char *facName, int * nbEvent, unsigned long checksum) { |
| 195 | int pos = 0; |
| 196 | |
| 197 | fprintf(fp,"#include <linux/ltt-log.h>\n\n"); |
| 198 | |
| 199 | fprintf(fp,"/**** facility handle ****/\n\n"); |
| 200 | fprintf(fp,"extern trace_facility_t ltt_facility_%s_%X;\n",facName, checksum); |
| 201 | fprintf(fp,"extern trace_facility_t ltt_facility_%s;\n\n\n",facName, checksum); |
| 202 | |
| 203 | fprintf(fp,"/**** event type ****/\n\n"); |
| 204 | fprintf(fp,"enum %s_event {\n",facName); |
| 205 | |
| 206 | for(pos = 0; pos < fac->events.position;pos++) { |
| 207 | fprintf(fp,"\t%s", ((event *)(fac->events.array[pos]))->name); |
| 208 | if(pos != fac->events.position-1) fprintf(fp,",\n"); |
| 209 | } |
| 210 | fprintf(fp,"\n};\n\n\n"); |
| 211 | |
| 212 | // fprintf(fp,"/**** number of events in the facility ****/\n\n"); |
| 213 | // fprintf(fp,"int nbEvents_%s = %d;\n\n\n",facName, fac->events.position); |
| 214 | *nbEvent = fac->events.position; |
| 215 | } |
| 216 | |
| 217 | |
| 218 | /***************************************************************************** |
| 219 | *Function name |
| 220 | * printStruct : Generic struct printing function |
| 221 | *Input Params |
| 222 | * fp : file to be written to |
| 223 | * len : number of fields |
| 224 | * array : array of field info |
| 225 | * name : basic struct name |
| 226 | * facName : name of facility |
| 227 | * whichTypeFirst : struct or array/sequence first |
| 228 | * hasStrSeq : string or sequence present? |
| 229 | * structCount : struct postfix |
| 230 | ****************************************************************************/ |
| 231 | |
| 232 | static void |
| 233 | printStruct(FILE * fp, int len, void ** array, char * name, char * facName, |
| 234 | int * whichTypeFirst, int * hasStrSeq, int * structCount) |
| 235 | { |
| 236 | int flag = 0; |
| 237 | int pos; |
| 238 | field * fld; |
| 239 | type_descriptor * td; |
| 240 | |
| 241 | for (pos = 0; pos < len; pos++) { |
| 242 | fld = (field *)array[pos]; |
| 243 | td = fld->type; |
| 244 | if( td->type != STRING && td->type != SEQUENCE && |
| 245 | td->type != ARRAY) { |
| 246 | if (*whichTypeFirst == 0) { |
| 247 | *whichTypeFirst = 1; //struct first |
| 248 | } |
| 249 | if (flag == 0) { |
| 250 | flag = 1; |
| 251 | |
| 252 | fprintf(fp,"struct %s_%s",name, facName); |
| 253 | if (structCount) { |
| 254 | fprintf(fp, "_%d {\n",++*structCount); |
| 255 | } else { |
| 256 | fprintf(fp, " {\n"); |
| 257 | } |
| 258 | } |
| 259 | fprintf(fp, "\t%s %s; /* %s */\n", |
| 260 | getTypeStr(td),fld->name,fld->description ); |
| 261 | } else { |
| 262 | if (*whichTypeFirst == 0) { |
| 263 | //string or sequence or array first |
| 264 | *whichTypeFirst = 2; |
| 265 | } |
| 266 | (*hasStrSeq)++; |
| 267 | if(flag) { |
| 268 | fprintf(fp,"} __attribute__ ((packed));\n\n"); |
| 269 | } |
| 270 | flag = 0; |
| 271 | } |
| 272 | } |
| 273 | |
| 274 | if(flag) { |
| 275 | fprintf(fp,"} __attribute__ ((packed));\n\n"); |
| 276 | } |
| 277 | } |
| 278 | |
| 279 | |
| 280 | /***************************************************************************** |
| 281 | *Function name |
| 282 | * generateHfile : Create the typedefs |
| 283 | *Input Params |
| 284 | * fp : file to be written to |
| 285 | ****************************************************************************/ |
| 286 | void |
| 287 | generateTypeDefs(FILE * fp) |
| 288 | { |
| 289 | int pos, tmp = 1; |
| 290 | |
| 291 | fprintf(fp, "/**** Basic Type Definitions ****/\n\n"); |
| 292 | |
| 293 | for (pos = 0; pos < fac->named_types.values.position; pos++) { |
| 294 | type_descriptor * type = |
| 295 | (type_descriptor*)fac->named_types.values.array[pos]; |
| 296 | printStruct(fp, type->fields.position, type->fields.array, |
| 297 | "", type->type_name, &tmp, &tmp, NULL); |
| 298 | fprintf(fp, "typedef struct _%s %s;\n\n", |
| 299 | type->type_name, type->type_name); |
| 300 | } |
| 301 | } |
| 302 | |
| 303 | |
| 304 | /***************************************************************************** |
| 305 | *Function name |
| 306 | * generateEnumDefinition: generate enum definition if it exists |
| 307 | *Input Params |
| 308 | * fp : file to be written to |
| 309 | * fHead : enum type |
| 310 | ****************************************************************************/ |
| 311 | void generateEnumDefinition(FILE * fp, type_descriptor * type){ |
| 312 | int pos; |
| 313 | |
| 314 | if(type->already_printed) return; |
| 315 | |
| 316 | fprintf(fp,"enum {\n"); |
| 317 | for(pos = 0; pos < type->labels.position; pos++){ |
| 318 | fprintf(fp,"\t%s", type->labels.array[pos]); |
| 319 | if (pos != type->labels.position - 1) fprintf(fp,","); |
| 320 | if(type->labels_description.array[pos] != NULL) |
| 321 | fprintf(fp,"\t/* %s */\n",type->labels_description.array[pos]); |
| 322 | else |
| 323 | fprintf(fp,"\n"); |
| 324 | } |
| 325 | fprintf(fp,"};\n\n\n"); |
| 326 | |
| 327 | type->already_printed = 1; |
| 328 | } |
| 329 | |
| 330 | /***************************************************************************** |
| 331 | *Function name |
| 332 | * generateStrucTFunc: output structure and function to .h file |
| 333 | *Input Params |
| 334 | * fp : file to be written to |
| 335 | * facName : name of facility |
| 336 | ****************************************************************************/ |
| 337 | void generateStructFunc(FILE * fp, char * facName, unsigned long checksum){ |
| 338 | event * ev; |
| 339 | field * fld; |
| 340 | type_descriptor * td; |
| 341 | int pos, pos1; |
| 342 | int hasStrSeq, flag, structCount, seqCount,strCount, whichTypeFirst=0; |
| 343 | |
| 344 | for(pos = 0; pos < fac->events.position; pos++){ |
| 345 | ev = (event *) fac->events.array[pos]; |
| 346 | //yxx if(ev->nested)continue; |
| 347 | fprintf(fp,"/**** structure and trace function for event: %s ****/\n\n",ev->name); |
| 348 | if(ev->type == 0){ // event without type |
| 349 | fprintf(fp,"static inline void trace_%s_%s(void){\n",facName,ev->name); |
| 350 | fprintf(fp,"\tltt_log_event(ltt_facility_%s_%X, %s, 0, NULL);\n",facName,checksum,ev->name); |
| 351 | fprintf(fp,"};\n\n\n"); |
| 352 | continue; |
| 353 | } |
| 354 | |
| 355 | //if fields contain enum, print out enum definition |
| 356 | for(pos1 = 0; pos1 < ev->type->fields.position; pos1++){ |
| 357 | fld = (field *)ev->type->fields.array[pos1]; |
| 358 | if(fld->type->type == ENUM) generateEnumDefinition(fp, fld->type); |
| 359 | } |
| 360 | |
| 361 | //default: no string, array or sequence in the event |
| 362 | hasStrSeq = 0; |
| 363 | whichTypeFirst = 0; |
| 364 | structCount = 0; |
| 365 | |
| 366 | //structure for kernel |
| 367 | printStruct(fp, ev->type->fields.position, ev->type->fields.array, |
| 368 | ev->name, facName, &whichTypeFirst, &hasStrSeq, &structCount); |
| 369 | |
| 370 | //trace function : function name and parameters |
| 371 | seqCount = 0; |
| 372 | strCount = 0; |
| 373 | fprintf(fp,"static inline void trace_%s_%s(",facName,ev->name); |
| 374 | for(pos1 = 0; pos1 < ev->type->fields.position; pos1++){ |
| 375 | fld = (field *)ev->type->fields.array[pos1]; |
| 376 | td = fld->type; |
| 377 | if(td->type == ARRAY ){ |
| 378 | fprintf(fp,"%s * %s",getTypeStr(td), fld->name); |
| 379 | }else if(td->type == STRING){ |
| 380 | fprintf(fp,"short int strLength_%d, %s * %s",++strCount, getTypeStr(td), fld->name); |
| 381 | }else if(td->type == SEQUENCE){ |
| 382 | fprintf(fp,"%s seqLength_%d, %s * %s",uintOutputTypes[td->size], ++seqCount,getTypeStr(td), fld->name); |
| 383 | }else fprintf(fp,"%s %s",getTypeStr(td), fld->name); |
| 384 | if(pos1 != ev->type->fields.position -1)fprintf(fp,", "); |
| 385 | } |
| 386 | fprintf(fp,"){\n"); |
| 387 | |
| 388 | //length of buffer : length of all structures |
| 389 | fprintf(fp,"\tint bufLength = "); |
| 390 | for(pos1=0;pos1<structCount;pos1++){ |
| 391 | fprintf(fp,"sizeof(struct %s_%s_%d)",ev->name, facName,pos1+1); |
| 392 | if(pos1 != structCount-1) fprintf(fp," + "); |
| 393 | } |
| 394 | |
| 395 | //length of buffer : length of all arrays, sequences and strings |
| 396 | seqCount = 0; |
| 397 | strCount = 0; |
| 398 | flag = 0; |
| 399 | for(pos1 = 0; pos1 < ev->type->fields.position; pos1++){ |
| 400 | fld = (field *)ev->type->fields.array[pos1]; |
| 401 | td = fld->type; |
| 402 | if(td->type == SEQUENCE || td->type==STRING ||td->type==ARRAY){ |
| 403 | if(structCount || flag > 0) fprintf(fp," + "); |
| 404 | if(td->type == SEQUENCE) fprintf(fp,"sizeof(%s) + sizeof(%s) * seqLength_%d",uintOutputTypes[td->size], getTypeStr(td), ++seqCount); |
| 405 | else if(td->type==STRING) fprintf(fp,"strLength_%d + 1", ++strCount); |
| 406 | else if(td->type==ARRAY) fprintf(fp,"sizeof(%s) * %d", getTypeStr(td),td->size); |
| 407 | if(structCount == 0) flag = 1; |
| 408 | } |
| 409 | } |
| 410 | fprintf(fp,";\n"); |
| 411 | |
| 412 | //allocate buffer |
| 413 | fprintf(fp,"\tchar buff[bufLength];\n"); |
| 414 | |
| 415 | //declare a char pointer if needed |
| 416 | if(structCount + hasStrSeq > 1) fprintf(fp,"\tchar * ptr = buff;\n"); |
| 417 | |
| 418 | //allocate memory for new struct and initialize it |
| 419 | if(whichTypeFirst == 1){ //struct first |
| 420 | for(pos1=0;pos1<structCount;pos1++){ |
| 421 | if(pos1==0) fprintf(fp,"\tstruct %s_%s_1 * __1 = (struct %s_%s_1 *)buff;\n",ev->name, facName,ev->name, facName); |
| 422 | else fprintf(fp,"\tstruct %s_%s_%d __%d;\n",ev->name, facName,pos1+1,pos1+1); |
| 423 | } |
| 424 | }else if(whichTypeFirst == 2){ |
| 425 | for(pos1=0;pos1<structCount;pos1++) |
| 426 | fprintf(fp,"\tstruct %s_%s_%d __%d;\n",ev->name, facName,pos1+1,pos1+1); |
| 427 | } |
| 428 | fprintf(fp,"\n"); |
| 429 | |
| 430 | if(structCount) fprintf(fp,"\t//initialize structs\n"); |
| 431 | flag = 0; |
| 432 | structCount = 0; |
| 433 | for(pos1 = 0; pos1 < ev->type->fields.position; pos1++){ |
| 434 | fld = (field *)ev->type->fields.array[pos1]; |
| 435 | td = fld->type; |
| 436 | if(td->type != ARRAY && td->type != SEQUENCE && td->type != STRING){ |
| 437 | if(flag == 0){ |
| 438 | flag = 1; |
| 439 | structCount++; |
| 440 | if(structCount > 1) fprintf(fp,"\n"); |
| 441 | } |
| 442 | if(structCount == 1 && whichTypeFirst == 1) fprintf(fp, "\t__1->%s = %s;\n",fld->name,fld->name ); |
| 443 | else fprintf(fp, "\t__%d.%s = %s;\n",structCount ,fld->name,fld->name); |
| 444 | }else flag = 0; |
| 445 | } |
| 446 | if(structCount) fprintf(fp,"\n"); |
| 447 | |
| 448 | //set ptr to the end of first struct if needed; |
| 449 | if(whichTypeFirst == 1 && structCount + hasStrSeq > 1){ |
| 450 | fprintf(fp,"\n\t//set ptr to the end of the first struct\n"); |
| 451 | fprintf(fp,"\tptr += sizeof(struct %s_%s_1);\n\n",ev->name, facName); |
| 452 | } |
| 453 | |
| 454 | //copy struct, sequence and string to buffer |
| 455 | seqCount = 0; |
| 456 | strCount = 0; |
| 457 | flag = 0; |
| 458 | structCount = 0; |
| 459 | for(pos1 = 0; pos1 < ev->type->fields.position; pos1++){ |
| 460 | fld = (field *)ev->type->fields.array[pos1]; |
| 461 | td = fld->type; |
| 462 | if(td->type != STRING && td->type != SEQUENCE && td->type != ARRAY){ |
| 463 | if(flag == 0) structCount++; |
| 464 | flag++; |
| 465 | if((structCount > 1 || whichTypeFirst == 2) && flag == 1){ |
| 466 | fprintf(fp,"\t//copy struct to buffer\n"); |
| 467 | fprintf(fp,"\tmemcpy(ptr, &__%d, sizeof(struct %s_%s_%d));\n",structCount, ev->name, facName,structCount); |
| 468 | fprintf(fp,"\tptr += sizeof(struct %s_%s_%d);\n\n",ev->name, facName,structCount); |
| 469 | } |
| 470 | }else if(td->type == SEQUENCE){ |
| 471 | flag = 0; |
| 472 | fprintf(fp,"\t//copy sequence length and sequence to buffer\n"); |
| 473 | fprintf(fp,"\t*ptr = seqLength_%d;\n",++seqCount); |
| 474 | fprintf(fp,"\tptr += sizeof(%s);\n",uintOutputTypes[td->size]); |
| 475 | fprintf(fp,"\tmemcpy(ptr, %s, sizeof(%s) * seqLength_%d);\n",fld->name, getTypeStr(td), seqCount); |
| 476 | fprintf(fp,"\tptr += sizeof(%s) * seqLength_%d;\n\n",getTypeStr(td), seqCount ); |
| 477 | }else if(td->type==STRING){ |
| 478 | flag = 0; |
| 479 | fprintf(fp,"\t//copy string to buffer\n"); |
| 480 | fprintf(fp,"\tif(strLength_%d > 0){\n",++strCount); |
| 481 | fprintf(fp,"\t\tmemcpy(ptr, %s, strLength_%d + 1);\n", fld->name, strCount); |
| 482 | fprintf(fp,"\t\tptr += strLength_%d + 1;\n",strCount); |
| 483 | fprintf(fp,"\t}else{\n"); |
| 484 | fprintf(fp,"\t\t*ptr = '\\0';\n"); |
| 485 | fprintf(fp,"\t\tptr += 1;\n"); |
| 486 | fprintf(fp,"\t}\n\n"); |
| 487 | }else if(td->type==ARRAY){ |
| 488 | flag = 0; |
| 489 | fprintf(fp,"\t//copy array to buffer\n"); |
| 490 | fprintf(fp,"\tmemcpy(ptr, %s, sizeof(%s) * %d);\n", fld->name, getTypeStr(td), td->size); |
| 491 | fprintf(fp,"\tptr += sizeof(%s) * %d;\n\n",getTypeStr(td), td->size); |
| 492 | } |
| 493 | } |
| 494 | if(structCount + seqCount > 1) fprintf(fp,"\n"); |
| 495 | |
| 496 | //call trace function |
| 497 | fprintf(fp,"\n\t//call trace function\n"); |
| 498 | fprintf(fp,"\tltt_log_event(ltt_facility_%s_%X, %s, bufLength, buff);\n",facName,checksum,ev->name); |
| 499 | fprintf(fp,"};\n\n\n"); |
| 500 | } |
| 501 | |
| 502 | } |
| 503 | |
| 504 | /***************************************************************************** |
| 505 | *Function name |
| 506 | * getTypeStr : generate type string |
| 507 | *Input Params |
| 508 | * td : a type descriptor |
| 509 | *Return Values |
| 510 | * char * : type string |
| 511 | ****************************************************************************/ |
| 512 | char * getTypeStr(type_descriptor * td){ |
| 513 | type_descriptor * t ; |
| 514 | |
| 515 | switch(td->type){ |
| 516 | case INT: |
| 517 | return intOutputTypes[td->size]; |
| 518 | case UINT: |
| 519 | return uintOutputTypes[td->size]; |
| 520 | case POINTER: |
| 521 | return "void *"; |
| 522 | case LONG: |
| 523 | return "long"; |
| 524 | case ULONG: |
| 525 | return "unsigned long"; |
| 526 | case SIZE_T: |
| 527 | return "size_t"; |
| 528 | case SSIZE_T: |
| 529 | return "ssize_t"; |
| 530 | case OFF_T: |
| 531 | return "off_t"; |
| 532 | case FLOAT: |
| 533 | return floatOutputTypes[td->size]; |
| 534 | case STRING: |
| 535 | return "char"; |
| 536 | case ENUM: |
| 537 | return uintOutputTypes[td->size]; |
| 538 | case ARRAY: |
| 539 | case SEQUENCE: |
| 540 | t = td->nested_type; |
| 541 | switch(t->type){ |
| 542 | case INT: |
| 543 | return intOutputTypes[t->size]; |
| 544 | case UINT: |
| 545 | return uintOutputTypes[t->size]; |
| 546 | case POINTER: |
| 547 | return "void *"; |
| 548 | case LONG: |
| 549 | return "long"; |
| 550 | case ULONG: |
| 551 | return "unsigned long"; |
| 552 | case SIZE_T: |
| 553 | return "size_t"; |
| 554 | case SSIZE_T: |
| 555 | return "ssize_t"; |
| 556 | case OFF_T: |
| 557 | return "off_t"; |
| 558 | case FLOAT: |
| 559 | return floatOutputTypes[t->size]; |
| 560 | case STRING: |
| 561 | return "char"; |
| 562 | case ENUM: |
| 563 | return uintOutputTypes[t->size]; |
| 564 | default : |
| 565 | error_callback(NULL,"Nested struct is not supportted"); |
| 566 | break; |
| 567 | } |
| 568 | break; |
| 569 | case STRUCT: //for now we do not support nested struct |
| 570 | error_callback(NULL,"Nested struct is not supportted"); |
| 571 | break; |
| 572 | default: |
| 573 | error_callback(NULL,"No type information"); |
| 574 | break; |
| 575 | } |
| 576 | return NULL; |
| 577 | } |
| 578 | |
| 579 | /***************************************************************************** |
| 580 | *Function name |
| 581 | * generateLoaderfile: generate a facility loaded .h file |
| 582 | *Input Params |
| 583 | * fp : file to be written to |
| 584 | * facName : name of facility |
| 585 | * nbEvent : number of events in the facility |
| 586 | * checksum : checksum for the facility |
| 587 | ****************************************************************************/ |
| 588 | void generateLoaderfile(FILE * fp, char * facName, int nbEvent, unsigned long checksum, char *capname){ |
| 589 | fprintf(fp, "#ifndef _LTT_FACILITY_LOADER_%s_H_\n",capname); |
| 590 | fprintf(fp, "#define _LTT_FACILITY_LOADER_%s_H_\n\n",capname); |
| 591 | fprintf(fp,"#include <linux/ltt-facilities.h>\n", facName, checksum); |
| 592 | fprintf(fp,"#include <linux/module.h>\n\n", facName, checksum); |
| 593 | fprintf(fp,"ltt_facility_t\tltt_facility_%s;\n", facName, checksum); |
| 594 | fprintf(fp,"ltt_facility_t\tltt_facility_%s_%X;\n\n", facName, checksum); |
| 595 | |
| 596 | fprintf(fp,"EXPORT_SYMBOL(ltt_facility_%s);\n\n",facName, checksum); |
| 597 | fprintf(fp,"EXPORT_SYMBOL(ltt_facility_%s_%X);\n\n",facName, checksum); |
| 598 | fprintf(fp,"#define LTT_FACILITY_SYMBOL\t\t\t\tltt_facility_%s\n", |
| 599 | facName); |
| 600 | fprintf(fp,"#define LTT_FACILITY_CHECKSUM_SYMBOL\t\t\t\tltt_facility_%s_%X\n", |
| 601 | facName, checksum); |
| 602 | fprintf(fp,"#define LTT_FACILITY_CHECKSUM\t\t\t0x%X\n", checksum); |
| 603 | fprintf(fp,"#define LTT_FACILITY_NAME\t\t\t\t\t\"%s\"\n", facName); |
| 604 | fprintf(fp,"#define LTT_FACILITY_NUM_EVENTS\t\t%d\n\n", nbEvent); |
| 605 | fprintf(fp, "#endif //_LTT_FACILITY_LOADER_%s_H_\n",capname); |
| 606 | } |
| 607 | |
| 608 | |