ltt/branches/poly/ltt/convert/convert.c

   1 #include <stdio.h>
   2 #include <unistd.h>
   3 #include <fcntl.h>
   4 #include <sys/stat.h>
   5 #include <sys/types.h>
   6 #include <errno.h>
   7 #include <stdlib.h>
   8 #include <string.h>
   9
  10 #include <glib.h>
  11 #include "LTTTypes.h"
  12 #include "LinuxEvents.h"
  13
  14 #define TRACE_HEARTBEAT_ID  19
  15 #define PROCESS_FORK_ID     20
  16 #define PROCESS_EXIT_ID     21
  17
  18 #define INFO_ENTRY          9
  19 #define OVERFLOW_FIGURE     0x100000000ULL
  20
  21 typedef struct _new_process
  22 {
  23   uint32_t  event_data1;     /* Data associated with event */
  24   uint32_t  event_data2;
  25 } LTT_PACKED_STRUCT new_process;
  26
  27 #define write_to_buffer(DEST, SRC, SIZE) \
  28 do\
  29 {\
  30    memcpy(DEST, SRC, SIZE);\
  31    DEST += SIZE;\
  32 } while(0);
  33
  34 int readFile(int fd, void * buf, size_t size, char * mesg)
  35 {
  36    ssize_t nbBytes = read(fd, buf, size);
  37
  38    if((size_t)nbBytes != size) {
  39      if(nbBytes < 0) {
  40        perror("Error in readFile : ");
  41      } else {
  42        printf("%s\n",mesg);
  43      }
  44      exit(1);
  45    }
  46    return 0;
  47 }
  48
  49 void getDataEndianType(char * size, char * endian)
  50 {
  51   int i = 1;
  52   char c = (char) i;
  53   int sizeInt=sizeof(int), sizeLong=sizeof(long), sizePointer=sizeof(void *);
  54
  55   if(c == 1) strcpy(endian,"LITTLE_ENDIAN");
  56   else strcpy(endian, "BIG_ENDIAN");
  57
  58   if(sizeInt == 2 && sizeLong == 4 && sizePointer == 4)
  59     strcpy(size,"LP32");
  60   else if(sizeInt == 4 && sizeLong == 4 && sizePointer == 4)
  61     strcpy(size,"ILP32");
  62   else if(sizeInt == 4 && sizeLong == 8 && sizePointer == 8)
  63     strcpy(size,"LP64");
  64   else if(sizeInt == 8 && sizeLong == 8 && sizePointer == 8)
  65     strcpy(size,"ILP64");
  66   else strcpy(size,"UNKNOWN");
  67 }
  68
  69 #define BUFFER_SIZE 80
  70
  71 typedef struct _buffer_start{
  72   uint32_t seconds;
  73   uint32_t nanoseconds;
  74   uint64_t cycle_count;
  75   uint32_t block_id;
  76 } __attribute__ ((packed)) buffer_start;
  77
  78 typedef struct _buffer_end{
  79   uint32_t seconds;
  80   uint32_t nanoseconds;
  81   uint64_t cycle_count;
  82   uint32_t block_id;
  83 } __attribute__ ((packed)) buffer_end;
  84
  85
  86 typedef struct _heartbeat{
  87   uint32_t seconds;
  88   uint32_t nanoseconds;
  89   uint64_t cycle_count;
  90 } __attribute__ ((packed)) heartbeat;
  91
  92
  93 int main(int argc, char ** argv){
  94
  95   int fd, fdCpu;
  96   FILE * fp;
  97   int  fdFac, fdIntr, fdProc;
  98   char arch_size[BUFFER_SIZE];
  99   char endian[BUFFER_SIZE];
 100   char node_name[BUFFER_SIZE];
 101   char domainname[BUFFER_SIZE];
 102   char kernel_name[BUFFER_SIZE];
 103   char kernel_release[BUFFER_SIZE];
 104   char kernel_version[BUFFER_SIZE];
 105   char machine[BUFFER_SIZE];
 106   char processor[BUFFER_SIZE];
 107   char hardware_platform[BUFFER_SIZE];
 108   char operating_system[BUFFER_SIZE];
 109   int  cpu;
 110   int  ltt_block_size=0;
 111   int  ltt_major_version=0;
 112   int  ltt_minor_version=0;
 113   int  ltt_log_cpu;
 114   char buf[BUFFER_SIZE];
 115   int i, k;
 116
 117   uint8_t cpu_id;
 118
 119   char foo[4*BUFFER_SIZE];
 120   char foo_eventdefs[4*BUFFER_SIZE];
 121   char foo_control[4*BUFFER_SIZE];
 122   char foo_cpu[4*BUFFER_SIZE];
 123   char foo_info[4*BUFFER_SIZE];
 124
 125   char foo_control_facilities[4*BUFFER_SIZE];
 126   char foo_control_processes[4*BUFFER_SIZE];
 127   char foo_control_interrupts[4*BUFFER_SIZE];
 128   char foo_info_system[4*BUFFER_SIZE];
 129
 130   struct stat      lTDFStat;
 131   off_t file_size;
 132   int block_number, block_size;
 133   char * buffer, *buf_out, cpuStr[4*BUFFER_SIZE];
 134   char * buf_fac, * buf_intr, * buf_proc;
 135   void * write_pos, *write_pos_fac, * write_pos_intr, *write_pos_proc;
 136   trace_start *tStart;
 137   trace_buffer_start *tBufStart;
 138   trace_buffer_end *tBufEnd;
 139   trace_file_system * tFileSys;
 140   uint16_t newId, startId, tmpId;
 141   uint8_t  evId;
 142   uint32_t time_delta, startTimeDelta;
 143   void * cur_pos, *end_pos;
 144   buffer_start start, start_proc, start_intr;
 145   buffer_end end, end_proc, end_intr;
 146   heartbeat beat;
 147   uint64_t beat_count;
 148   uint32_t size_lost;
 149   int reserve_size = sizeof(buffer_start) + sizeof(uint16_t) + 2*sizeof(uint32_t);//lost_size and buffer_end event
 150   int nb_para;
 151
 152   new_process process;
 153
 154   if(argc < 4){
 155     printf("Usage : ./convert processfile_name number_of_cpu tracefile1 tracefile2 ... trace_creation_directory\n");
 156                 printf("For more details, see README.\n");
 157     exit(1);
 158   }
 159
 160   cpu = atoi(argv[2]);
 161   printf("cpu number = %d\n", cpu);
 162   nb_para = 3 + cpu;
 163
 164   if(argc != nb_para && argc != nb_para+1){
 165     printf("need trace files and cpu number or root directory for the new tracefile\n");
 166     exit(1);
 167   }
 168
 169   if(argc == nb_para){
 170     strcpy(foo, "foo");
 171     strcpy(foo_eventdefs, "foo/eventdefs");
 172     strcpy(foo_control, "foo/control");
 173     strcpy(foo_cpu, "foo/cpu");
 174     strcpy(foo_info, "foo/info");
 175   }else{
 176     strcpy(foo, argv[nb_para]);
 177     strcpy(foo_eventdefs, argv[nb_para]);
 178     strcat(foo_eventdefs,"/eventdefs");
 179     strcpy(foo_control, argv[nb_para]);
 180     strcat(foo_control,"/control");
 181     strcpy(foo_cpu, argv[nb_para]);
 182     strcat(foo_cpu,"/cpu");
 183     strcpy(foo_info, argv[nb_para]);
 184     strcat(foo_info,"/info");
 185   }
 186   strcpy(foo_control_facilities, foo_control);
 187   strcat(foo_control_facilities,"/facilities");
 188   strcpy(foo_control_processes, foo_control);
 189   strcat(foo_control_processes, "/processes");
 190   strcpy(foo_control_interrupts, foo_control);
 191   strcat(foo_control_interrupts, "/interrupts");
 192   strcpy(foo_info_system, foo_info);
 193   strcat(foo_info_system, "/system.xml");
 194
 195
 196   getDataEndianType(arch_size, endian);
 197   printf("Arch_size: %s,  Endian: %s\n", arch_size, endian);
 198
 199   fp = fopen("sysInfo.out","r");
 200   if(!fp){
 201     g_error("Unable to open file sysInfo.out\n");
 202   }
 203
 204   for(i=0;i<INFO_ENTRY;i++){
 205     if(!fgets(buf,BUFFER_SIZE-1,fp))
 206       g_error("The format of sysInfo.out is not right\n");
 207     if(strncmp(buf,"node_name=",10)==0){
 208       strcpy(node_name,&buf[10]);
 209       node_name[strlen(node_name)-1] = '\0';
 210     }else if(strncmp(buf,"domainname=",11)==0){
 211       strcpy(domainname,&buf[11]);
 212       domainname[strlen(domainname)-1] = '\0';
 213     }else if(strncmp(buf,"kernel_name=",12)==0){
 214       strcpy(kernel_name,&buf[12]);
 215       kernel_name[strlen(kernel_name)-1] = '\0';
 216     }else if(strncmp(buf,"kernel_release=",15)==0){
 217       strcpy(kernel_release,&buf[15]);
 218       kernel_release[strlen(kernel_release)-1] = '\0';
 219     }else if(strncmp(buf,"kernel_version=",15)==0){
 220       strcpy(kernel_version,&buf[15]);
 221       kernel_version[strlen(kernel_version)-1] = '\0';
 222     }else if(strncmp(buf,"machine=",8)==0){
 223       strcpy(machine,&buf[8]);
 224       machine[strlen(machine)-1] = '\0';
 225     }else if(strncmp(buf,"processor=",10)==0){
 226       strcpy(processor,&buf[10]);
 227       processor[strlen(processor)-1] = '\0';
 228     }else if(strncmp(buf,"hardware_platform=",18)==0){
 229       strcpy(hardware_platform,&buf[18]);
 230       hardware_platform[strlen(hardware_platform)-1] = '\0';
 231     }else if(strncmp(buf,"operating_system=",17)==0){
 232       strcpy(operating_system,&buf[17]);
 233       operating_system[strlen(operating_system)-1] = '\0';
 234     }
 235   }
 236   fclose(fp);
 237
 238   if(mkdir(foo, S_IFDIR | S_IRWXU | S_IRGRP |  S_IROTH))
 239     g_error("can not make %s directory", foo);
 240   if(mkdir(foo_info, S_IFDIR | S_IRWXU | S_IRGRP |  S_IROTH))
 241     g_error("can not make %s directory", foo_info);
 242   if(mkdir(foo_cpu, S_IFDIR | S_IRWXU | S_IRGRP |  S_IROTH))
 243     g_error("can not make %s directory", foo_cpu);
 244   if(mkdir(foo_control, S_IFDIR | S_IRWXU | S_IRGRP |  S_IROTH))
 245     g_error("can not make %s directory", foo_control);
 246   if(mkdir(foo_eventdefs, S_IFDIR | S_IRWXU | S_IRGRP |  S_IROTH))
 247     g_error("can not make %s directory", foo_eventdefs);
 248
 249   fp = fopen(foo_info_system,"w");
 250   if(!fp){
 251     g_error("Unable to open file system.xml\n");
 252   }
 253
 254   fdFac = open(foo_control_facilities,O_CREAT | O_RDWR | O_TRUNC,S_IRUSR |S_IWUSR | S_IRGRP | S_IROTH);
 255   if(fdFac < 0){
 256     g_error("Unable to open file facilities\n");
 257   }
 258   fdIntr = open(foo_control_interrupts,O_CREAT | O_RDWR | O_TRUNC,S_IRUSR |S_IWUSR | S_IRGRP | S_IROTH);
 259   if(fdIntr<0){
 260     g_error("Unable to open file interrupts\n");
 261   }
 262   fdProc = open(foo_control_processes,O_CREAT | O_RDWR | O_TRUNC,S_IRUSR |S_IWUSR | S_IRGRP | S_IROTH);
 263   if(fdProc<0){
 264     g_error("Unable to open file process\n");
 265   }
 266
 267
 268   for(k=0;k<cpu;k++){
 269     fd = open(argv[nb_para-cpu+k], O_RDONLY, 0);
 270     if(fd < 0){
 271       g_error("Unable to open input data file %s\n", argv[nb_para-cpu+k]);
 272     }
 273
 274     if(fstat(fd, &lTDFStat) < 0){
 275       g_error("Unable to get the status of the input data file\n");
 276     }
 277     file_size = lTDFStat.st_size;
 278
 279     buffer = g_new(char, 4000);
 280     readFile(fd,(void*)buffer, 3500, "Unable to read block header");
 281
 282     cur_pos= buffer;
 283     evId = *(uint8_t *)cur_pos;
 284     cur_pos += sizeof(uint8_t);
 285     newId = evId;
 286     time_delta = *(uint32_t*)cur_pos;
 287     cur_pos += sizeof(uint32_t);
 288     tBufStart = (trace_buffer_start*)cur_pos;
 289     cur_pos += sizeof(trace_buffer_start);
 290     cur_pos += sizeof(uint16_t); //Skip event size
 291
 292     evId = *(uint8_t *)cur_pos;
 293     cur_pos += sizeof(uint8_t);
 294     cur_pos += sizeof(uint32_t);
 295     tStart = (trace_start*)cur_pos;
 296
 297     startId = newId;
 298     startTimeDelta = time_delta;
 299     start.seconds = tBufStart->Time.tv_sec;
 300     /* Fix (Mathieu) */
 301     start.nanoseconds = tBufStart->Time.tv_usec * 1000;
 302     start.cycle_count = tBufStart->TSC;
 303     start.block_id = tBufStart->ID;
 304     end.block_id = start.block_id;
 305
 306     ltt_major_version = tStart->MajorVersion;
 307     ltt_minor_version = tStart->MinorVersion;
 308     ltt_block_size    = tStart->BufferSize;
 309     ltt_log_cpu       = tStart->LogCPUID;
 310
 311     block_size = ltt_block_size;//FIXME
 312     block_number = file_size/ltt_block_size;
 313
 314     g_free(buffer);
 315     buffer         = g_new(char, ltt_block_size);
 316     buf_fac        = g_new(char, block_size);
 317     write_pos_fac  = buf_fac;
 318     buf_intr       = g_new(char, block_size);
 319     write_pos_intr = buf_intr;
 320     buf_proc       = g_new(char, block_size);
 321     write_pos_proc = buf_proc;
 322
 323     buf_out = g_new(char, block_size);
 324     write_pos = buf_out;
 325     sprintf(cpuStr,"%s/%d",foo_cpu,k);
 326     fdCpu = open(cpuStr, O_CREAT | O_RDWR | O_TRUNC,S_IRUSR |S_IWUSR | S_IRGRP | S_IROTH); //for cpu k
 327     if(fdCpu < 0)  g_error("Unable to open  cpu file %d\n", k);
 328     lseek(fd,0,SEEK_SET);
 329
 330     for(i=0;i<block_number;i++){
 331       int event_count = 0;
 332
 333       memset((void*)buf_out, 0, block_size);
 334       write_pos = buf_out;
 335       memset((void*)buf_intr, 0, block_size);
 336       memset((void*)buf_fac, 0, block_size);
 337       memset((void*)buf_proc, 0, block_size);
 338       write_pos_intr = buf_intr;
 339       write_pos_fac = buf_fac;
 340       write_pos_proc = buf_proc;
 341
 342       memset((void*)buffer,0,ltt_block_size);
 343       readFile(fd,(void*)buffer, ltt_block_size, "Unable to read block header");
 344
 345       cur_pos= buffer;
 346       evId = *(uint8_t *)cur_pos;
 347       cur_pos += sizeof(uint8_t);
 348       newId = evId;
 349       time_delta = *(uint32_t*)cur_pos;
 350       cur_pos += sizeof(uint32_t);
 351       tBufStart = (trace_buffer_start*)cur_pos;
 352       cur_pos += sizeof(trace_buffer_start);
 353       cur_pos += sizeof(uint16_t); //Skip event size
 354
 355       startId = newId;
 356       startTimeDelta = time_delta;
 357       start.seconds = tBufStart->Time.tv_sec;
 358       /* usec -> nsec (Mathieu) */
 359       start.nanoseconds = tBufStart->Time.tv_usec * 1000;
 360       start.cycle_count = tBufStart->TSC;
 361       beat_count = start.cycle_count;
 362       start.block_id = tBufStart->ID;
 363       end.block_id = start.block_id;
 364
 365       end_pos = buffer + ltt_block_size; //end of the buffer
 366       size_lost = *(uint32_t*)(end_pos - sizeof(uint32_t));
 367
 368       end_pos = buffer + ltt_block_size - size_lost ; //buffer_end event
 369       if(ltt_log_cpu){
 370         tBufEnd = (trace_buffer_end*)(end_pos + 2 * sizeof(uint8_t)+sizeof(uint32_t));
 371       }else{
 372         tBufEnd = (trace_buffer_end*)(end_pos+sizeof(uint8_t)+sizeof(uint32_t));
 373       }
 374       end.seconds = tBufEnd->Time.tv_sec;
 375       /* usec -> nsec (Mathieu) */
 376       end.nanoseconds = tBufEnd->Time.tv_usec * 1000;
 377       end.cycle_count = tBufEnd->TSC;
 378
 379       //skip buffer start and trace start events
 380       if(i==0) //the first block
 381         cur_pos = buffer + sizeof(trace_buffer_start) + sizeof(trace_start) + 2*(sizeof(uint8_t)+sizeof(uint16_t)+sizeof(uint32_t));
 382       else //other blocks
 383         cur_pos = buffer + sizeof(trace_buffer_start) + sizeof(uint8_t)+sizeof(uint16_t)+sizeof(uint32_t);
 384
 385       //write start block event
 386       write_to_buffer(write_pos,(void*)&startId, sizeof(uint16_t));
 387       write_to_buffer(write_pos,(void*)&startTimeDelta, sizeof(uint32_t));
 388       write_to_buffer(write_pos,(void*)&start, sizeof(buffer_start));
 389
 390       //write start block event into processes and interrupts files
 391       write_to_buffer(write_pos_intr,(void*)&startId, sizeof(uint16_t));
 392       write_to_buffer(write_pos_intr,(void*)&startTimeDelta, sizeof(uint32_t));
 393       start_intr = start;
 394       start_intr.nanoseconds -= 20;
 395       write_to_buffer(write_pos_intr,(void*)&start_intr, sizeof(buffer_start));
 396
 397       write_to_buffer(write_pos_proc,(void*)&startId, sizeof(uint16_t));
 398       write_to_buffer(write_pos_proc,(void*)&startTimeDelta, sizeof(uint32_t));
 399       start_proc = start;
 400       start_proc.nanoseconds -= 40;
 401       write_to_buffer(write_pos_proc,(void*)&start_proc, sizeof(buffer_start));
 402
 403       //parse *.proc file to get process and irq info
 404       if(i == 0){
 405         int        lIntID;                 /* Interrupt ID */
 406         int        lPID, lPPID;            /* Process PID and Parent PID */
 407         char       lName[256];             /* Process name */
 408         FILE *          fProc;
 409         uint16_t        defaultId;
 410         trace_irq_entry irq;
 411
 412         fProc = fopen(argv[1],"r");
 413         if(!fProc){
 414           g_error("Unable to open file %s\n", argv[1]);
 415         }
 416
 417         while(fscanf(fProc, "PID: %d; PPID: %d; NAME: %s\n", &lPID, &lPPID, lName) > 0){
 418           defaultId = PROCESS_FORK_ID;
 419           process.event_data1 = lPID;
 420           process.event_data2 = lPPID;
 421           write_to_buffer(write_pos_proc,(void*)&defaultId, sizeof(uint16_t));
 422           write_to_buffer(write_pos_proc,(void*)&startTimeDelta, sizeof(uint32_t));
 423           write_to_buffer(write_pos_proc,(void*)&process, sizeof(new_process));
 424         }
 425
 426         while(fscanf(fProc, "IRQ: %d; NAME: ", &lIntID) > 0){
 427           /* Read 'til the end of the line */
 428           fgets(lName, 200, fProc);
 429
 430           defaultId =  TRACE_IRQ_ENTRY;
 431           irq.irq_id = lIntID;
 432           irq.kernel = 1;
 433           write_to_buffer(write_pos_intr,(void*)&defaultId, sizeof(uint16_t));
 434           write_to_buffer(write_pos_intr,(void*)&startTimeDelta, sizeof(uint32_t));
 435           write_to_buffer(write_pos_intr,(void*)&irq, sizeof(trace_irq_entry));
 436         }
 437         fclose(fProc);
 438       }
 439
 440       while(1){
 441         int event_size;
 442         uint64_t timeDelta;
 443         uint8_t  subId;
 444
 445         if(ltt_log_cpu){
 446           cpu_id = *(uint8_t*)cur_pos;
 447           cur_pos += sizeof(uint8_t);
 448         }
 449         evId = *(uint8_t *)cur_pos;
 450         newId = evId;
 451         if(evId == TRACE_HEARTBEAT) {
 452           newId = TRACE_HEARTBEAT_ID;
 453         }
 454         cur_pos += sizeof(uint8_t);
 455         time_delta = *(uint32_t*)cur_pos;
 456         cur_pos += sizeof(uint32_t);
 457
 458         //write event_id and time_delta
 459         write_to_buffer(write_pos,(void*)&newId,sizeof(uint16_t));
 460         write_to_buffer(write_pos,(void*)&time_delta, sizeof(uint32_t));
 461
 462         if(evId == TRACE_BUFFER_END){
 463 #if 0 //(Mathieu : already set correctly to tBufEnd.TSC)
 464     end.cycle_count = start.cycle_count
 465                          + beat_count * OVERFLOW_FIGURE;
 466 #endif //)
 467           int size = (void*)buf_out + block_size - write_pos
 468                    - sizeof(buffer_end) - sizeof(uint32_t);
 469
 470     /* size _lost_ ? */
 471     //int size = (void*)buf_out + block_size - write_pos
 472     //            + sizeof(uint16_t) + sizeof(uint32_t);
 473     g_assert((void*)write_pos < (void*)buf_out + block_size);
 474           write_to_buffer(write_pos,(void*)&end,sizeof(buffer_end));
 475           write_pos = buf_out + block_size - sizeof(uint32_t);
 476           write_to_buffer(write_pos,(void*)&size, sizeof(uint32_t));
 477           write(fdCpu,(void*)buf_out, block_size);
 478
 479           //write out processes and intrrupts files
 480           {
 481             int size_intr = block_size + (void*)buf_intr - write_pos_intr
 482                          - sizeof(buffer_end) - sizeof(uint32_t);
 483             int size_proc = block_size + (void*)buf_proc - write_pos_proc
 484                          - sizeof(buffer_end) - sizeof(uint32_t);
 485       //int size_intr = block_size - (write_pos_intr - (void*)buf_intr);
 486       //int size_proc = block_size - (write_pos_proc - (void*)buf_proc);
 487             write_to_buffer(write_pos_intr,(void*)&newId,sizeof(uint16_t));
 488             write_to_buffer(write_pos_intr,(void*)&time_delta, sizeof(uint32_t));
 489             end_intr = end;
 490             end_intr.nanoseconds -= 20;
 491             write_to_buffer(write_pos_intr,(void*)&end_intr,sizeof(buffer_start));
 492
 493             write_to_buffer(write_pos_proc,(void*)&newId,sizeof(uint16_t));
 494             write_to_buffer(write_pos_proc,(void*)&time_delta, sizeof(uint32_t));
 495             end_proc = end;
 496             end_proc.nanoseconds -= 40;
 497             write_to_buffer(write_pos_proc,(void*)&end_proc,sizeof(buffer_start));
 498
 499             write_pos_intr = buf_intr + block_size - sizeof(uint32_t);
 500             write_pos_proc = buf_proc + block_size - sizeof(uint32_t);
 501             write_to_buffer(write_pos_intr,(void*)&size_intr, sizeof(uint32_t));
 502             write_to_buffer(write_pos_proc,(void*)&size_proc, sizeof(uint32_t));
 503             //for now don't output processes and interrupt information
 504             //    write(fdIntr,(void*)buf_intr,block_size);
 505             //    write(fdProc,(void*)buf_proc,block_size);
 506           }
 507           break;
 508         }
 509
 510         event_count++;
 511         switch(evId){
 512           case TRACE_SYSCALL_ENTRY:
 513             event_size = sizeof(trace_syscall_entry);
 514             break;
 515           case TRACE_SYSCALL_EXIT:
 516             event_size = 0;
 517             break;
 518           case TRACE_TRAP_ENTRY:
 519             event_size = sizeof(trace_trap_entry);
 520             break;
 521           case TRACE_TRAP_EXIT:
 522             event_size = 0;
 523             break;
 524           case TRACE_IRQ_ENTRY:
 525             event_size = sizeof(trace_irq_entry);
 526             timeDelta = time_delta;
 527             write_to_buffer(write_pos_intr,(void*)&newId, sizeof(uint16_t));
 528             write_to_buffer(write_pos_intr,(void*)&timeDelta, sizeof(uint32_t));
 529             write_to_buffer(write_pos_intr,cur_pos, event_size);
 530             break;
 531           case TRACE_IRQ_EXIT:
 532             event_size = 0;
 533             timeDelta = time_delta;
 534             write_to_buffer(write_pos_intr,(void*)&newId, sizeof(uint16_t));
 535             write_to_buffer(write_pos_intr,(void*)&timeDelta, sizeof(uint32_t));
 536             break;
 537           case TRACE_SCHEDCHANGE:
 538             event_size = sizeof(trace_schedchange);
 539             break;
 540           case TRACE_KERNEL_TIMER:
 541             event_size = 0;
 542             break;
 543           case TRACE_SOFT_IRQ:
 544             event_size = sizeof(trace_soft_irq);
 545             //    timeDelta = time_delta;
 546             //    write_to_buffer(write_pos_intr,(void*)&newId, sizeof(uint16_t));
 547             //    write_to_buffer(write_pos_intr,(void*)&timeDelta, sizeof(uint32_t));
 548             //    write_to_buffer(write_pos_intr,cur_pos, event_size);
 549             break;
 550           case TRACE_PROCESS:
 551             event_size = sizeof(trace_process);
 552             timeDelta = time_delta;
 553             subId = *(uint8_t*)cur_pos;
 554             if(subId == TRACE_PROCESS_FORK || subId ==TRACE_PROCESS_EXIT){
 555               if( subId == TRACE_PROCESS_FORK)tmpId = PROCESS_FORK_ID;
 556               else tmpId = PROCESS_EXIT_ID;
 557               write_to_buffer(write_pos_proc,(void*)&tmpId, sizeof(uint16_t));
 558               write_to_buffer(write_pos_proc,(void*)&timeDelta, sizeof(uint32_t));
 559
 560               process = *(new_process*)(cur_pos + sizeof(uint8_t));
 561               write_to_buffer(write_pos_proc,(void*)&process, sizeof(new_process));
 562             }
 563             break;
 564           case TRACE_FILE_SYSTEM:
 565             event_size = sizeof(trace_file_system)- sizeof(char*);
 566             break;
 567           case TRACE_TIMER:
 568             event_size = sizeof(trace_timer);
 569             break;
 570           case TRACE_MEMORY:
 571             event_size = sizeof(trace_memory);
 572             break;
 573           case TRACE_SOCKET:
 574             event_size = sizeof(trace_socket);
 575             break;
 576           case TRACE_IPC:
 577             event_size = sizeof(trace_ipc);
 578             break;
 579           case TRACE_NETWORK:
 580             event_size = sizeof(trace_network);
 581             break;
 582           case TRACE_HEARTBEAT:
 583       /* Fix (Mathieu) */
 584       if(timeDelta < (0xFFFFFFFF&beat_count)) {
 585         /* Overflow */
 586         beat_count += 0x100000000ULL - (uint64_t)(0xFFFFFFFF&beat_count)
 587                                      + (uint64_t)timeDelta;
 588       } else {
 589         /* No overflow */
 590         beat_count += timeDelta - (0xFFFFFFFF&beat_count);
 591       }
 592             beat.seconds = 0;
 593             beat.nanoseconds = 0;
 594             beat.cycle_count = beat_count;
 595             event_size = 0;
 596
 597             write_to_buffer(write_pos_intr,(void*)&newId, sizeof(uint16_t));
 598             write_to_buffer(write_pos_intr,(void*)&timeDelta, sizeof(uint32_t));
 599             write_to_buffer(write_pos_intr,(void*)&beat, sizeof(heartbeat));
 600             write_to_buffer(write_pos_proc,(void*)&newId, sizeof(uint16_t));
 601             write_to_buffer(write_pos_proc,(void*)&timeDelta, sizeof(uint32_t));
 602             write_to_buffer(write_pos_proc,(void*)&beat, sizeof(heartbeat));
 603             break;
 604           default:
 605             event_size = -1;
 606             break;
 607         }
 608         if(evId != TRACE_FILE_SYSTEM && event_size >=0){
 609           write_to_buffer(write_pos, cur_pos, event_size);
 610
 611           if(evId == TRACE_HEARTBEAT){
 612             write_to_buffer(write_pos, (void*)&beat, sizeof(heartbeat));
 613           }
 614
 615           cur_pos += event_size + sizeof(uint16_t); //skip data_size
 616         }else if(evId == TRACE_FILE_SYSTEM){
 617           size_t nbBytes;
 618           char  c = '\0';
 619           tFileSys = (trace_file_system*)cur_pos;
 620           subId = tFileSys->event_sub_id;
 621           if(subId == TRACE_FILE_SYSTEM_OPEN || subId == TRACE_FILE_SYSTEM_EXEC){
 622             nbBytes = tFileSys->event_data2 +1;
 623           }else nbBytes = 0;
 624
 625           write_to_buffer(write_pos, cur_pos, event_size);
 626           cur_pos += event_size + sizeof(char*);
 627           if(nbBytes){
 628             write_to_buffer(write_pos, cur_pos, nbBytes);
 629           }else{
 630             write_to_buffer(write_pos, (void*)&c, 1);
 631           }
 632           cur_pos += nbBytes + sizeof(uint16_t); //skip data_size
 633         }else if(event_size == -1){
 634           printf("Unknown event: evId=%d, i=%d, event_count=%d\n", newId, i, event_count);
 635           exit(1);
 636         }
 637       } //end while(1)
 638     }
 639     close(fd);
 640     close(fdCpu);
 641     g_free(buffer);
 642     buffer = NULL;
 643     g_free(buf_fac);
 644     g_free(buf_intr);
 645     g_free(buf_proc);
 646     g_free(buf_out);
 647   }
 648
 649
 650
 651
 652
 653   //write to system.xml
 654   fprintf(fp,"<system \n");
 655   fprintf(fp,"node_name=\"%s\" \n", node_name);
 656   fprintf(fp,"domainname=\"%s\" \n", domainname);
 657   fprintf(fp,"cpu=\"%d\" \n", cpu);
 658   fprintf(fp,"arch_size=\"%s\" \n", arch_size);
 659   fprintf(fp,"endian=\"%s\" \n",endian);
 660   fprintf(fp,"kernel_name=\"%s\" \n",kernel_name);
 661   fprintf(fp,"kernel_release=\"%s\" \n",kernel_release);
 662   fprintf(fp,"kernel_version=\"%s\" \n",kernel_version);
 663   fprintf(fp,"machine=\"%s\" \n",machine);
 664   fprintf(fp,"processor=\"%s\" \n",processor);
 665   fprintf(fp,"hardware_platform=\"%s\" \n",hardware_platform);
 666   fprintf(fp,"operating_system=\"%s\" \n",operating_system);
 667   fprintf(fp,"ltt_major_version=\"%d\" \n",ltt_major_version);
 668   fprintf(fp,"ltt_minor_version=\"%d\" \n",ltt_minor_version);
 669   fprintf(fp,"ltt_block_size=\"%d\" \n",ltt_block_size);
 670   fprintf(fp,">\n");
 671   fprintf(fp,"This is just a test\n");
 672   fprintf(fp,"</system>\n");
 673   fflush(fp);
 674
 675   close(fdFac);
 676   close(fdIntr);
 677   close(fdProc);
 678   fclose(fp);
 679
 680   return 0;
 681 }
 682