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

   1 #include <stdio.h>
   2 #include <fcntl.h>
   3 #include <sys/stat.h>
   4 #include <sys/types.h>
   5 #include <linux/errno.h>
   6
   7 #include <glib.h>
   8 #include "LTTTypes.h"
   9 #include "LinuxEvents.h"
  10
  11 #define TRACE_HEARTBEAT_ID  19
  12 #define PROCESS_FORK_ID     20
  13 #define PROCESS_EXIT_ID     21
  14
  15 #define INFO_ENTRY          9
  16 #define OVERFLOW_FIGURE     4294967296
  17
  18 typedef struct _new_process
  19 {
  20   uint32_t  event_data1;     /* Data associated with event */
  21   uint32_t  event_data2;
  22 } LTT_PACKED_STRUCT new_process;
  23
  24 #define write_to_buffer(DEST, SRC, SIZE) \
  25 do\
  26 {\
  27    memcpy(DEST, SRC, SIZE);\
  28    DEST += SIZE;\
  29 } while(0);
  30
  31 int readFile(int fd, void * buf, size_t size, char * mesg)
  32 {
  33    ssize_t nbBytes;
  34    nbBytes = read(fd, buf, size);
  35    if(nbBytes != size){
  36      printf("%s\n",mesg);
  37      exit(1);
  38    }
  39    return 0;
  40 }
  41
  42 void getDataEndianType(char * size, char * endian)
  43 {
  44   int i = 1;
  45   char c = (char) i;
  46   int sizeInt=sizeof(int), sizeLong=sizeof(long), sizePointer=sizeof(void *);
  47
  48   if(c == 1) strcpy(endian,"LITTLE_ENDIAN");
  49   else strcpy(endian, "BIG_ENDIAN");
  50
  51   if(sizeInt == 2 && sizeLong == 4 && sizePointer == 4)
  52     strcpy(size,"LP32");
  53   else if(sizeInt == 4 && sizeLong == 4 && sizePointer == 4)
  54     strcpy(size,"ILP32");
  55   else if(sizeInt == 4 && sizeLong == 8 && sizePointer == 8)
  56     strcpy(size,"LP64");
  57   else if(sizeInt == 8 && sizeLong == 8 && sizePointer == 8)
  58     strcpy(size,"ILP64");
  59   else strcpy(size,"UNKNOWN");
  60 }
  61
  62 #define BUFFER_SIZE 80
  63
  64 typedef struct _buffer_start{
  65   uint32_t seconds;
  66   uint32_t nanoseconds;
  67   uint64_t cycle_count;
  68   uint32_t block_id;
  69 } __attribute__ ((packed)) buffer_start;
  70
  71 typedef struct _heartbeat{
  72   uint32_t seconds;
  73   uint32_t nanoseconds;
  74   uint64_t cycle_count;
  75 } __attribute__ ((packed)) heartbeat;
  76
  77
  78 int main(int argc, char ** argv){
  79
  80   int fd, fdCpu;
  81   FILE * fp;
  82   int  fdFac, fdIntr, fdProc;
  83   char arch_size[BUFFER_SIZE];
  84   char endian[BUFFER_SIZE];
  85   char node_name[BUFFER_SIZE];
  86   char domainname[BUFFER_SIZE];
  87   char kernel_name[BUFFER_SIZE];
  88   char kernel_release[BUFFER_SIZE];
  89   char kernel_version[BUFFER_SIZE];
  90   char machine[BUFFER_SIZE];
  91   char processor[BUFFER_SIZE];
  92   char hardware_platform[BUFFER_SIZE];
  93   char operating_system[BUFFER_SIZE];
  94   int  cpu;
  95   int  ltt_block_size;
  96   int  ltt_major_version;
  97   int  ltt_minor_version;
  98   int  ltt_log_cpu;
  99   char buf[BUFFER_SIZE];
 100   int i,j, k;
 101
 102   uint8_t cpu_id;
 103
 104   char foo[4*BUFFER_SIZE];
 105   char foo_eventdefs[4*BUFFER_SIZE];
 106   char foo_control[4*BUFFER_SIZE];
 107   char foo_cpu[4*BUFFER_SIZE];
 108   char foo_info[4*BUFFER_SIZE];
 109
 110   char foo_control_facilities[4*BUFFER_SIZE];
 111   char foo_control_processes[4*BUFFER_SIZE];
 112   char foo_control_interrupts[4*BUFFER_SIZE];
 113   char foo_info_system[4*BUFFER_SIZE];
 114
 115   struct stat      lTDFStat;
 116   off_t file_size;
 117   int block_number, block_size;
 118   char * buffer, *buf_out, cpuStr[4*BUFFER_SIZE];
 119   char * buf_fac, * buf_intr, * buf_proc;
 120   void * write_pos, *write_pos_fac, * write_pos_intr, *write_pos_proc;
 121   trace_start *tStart;
 122   trace_buffer_start *tBufStart;
 123   trace_buffer_end *tBufEnd;
 124   trace_file_system * tFileSys;
 125   uint16_t newId, startId, tmpId;
 126   uint8_t  evId;
 127   uint32_t time_delta, startTimeDelta, previous_time_delta;
 128   void * cur_pos, *end_pos;
 129   buffer_start start, start_proc, start_intr;
 130   buffer_start end, end_proc, end_intr;
 131   heartbeat beat;
 132   int beat_count = 0;
 133   uint32_t size_lost;
 134   int reserve_size = sizeof(buffer_start) + sizeof(uint16_t) + 2*sizeof(uint32_t);//lost_size and buffer_end event
 135   int nb_para;
 136
 137   new_process process;
 138
 139   if(argc < 4){
 140     printf("Usage : ./convert processfile_name number_of_cpu tracefile1 tracefile2 ... trace_creation_directory\n");
 141                 printf("For more details, see README.\n");
 142     exit(1);
 143   }
 144
 145   cpu = atoi(argv[2]);
 146   printf("cpu number = %d\n", cpu);
 147   nb_para = 3 + cpu;
 148
 149   if(argc != nb_para && argc != nb_para+1){
 150     printf("need trace files and cpu number or root directory for the new tracefile\n");
 151     exit(1);
 152   }
 153
 154   if(argc == nb_para){
 155     strcpy(foo, "foo");
 156     strcpy(foo_eventdefs, "foo/eventdefs");
 157     strcpy(foo_control, "foo/control");
 158     strcpy(foo_cpu, "foo/cpu");
 159     strcpy(foo_info, "foo/info");
 160   }else{
 161     strcpy(foo, argv[nb_para]);
 162     strcpy(foo_eventdefs, argv[nb_para]);
 163     strcat(foo_eventdefs,"/eventdefs");
 164     strcpy(foo_control, argv[nb_para]);
 165     strcat(foo_control,"/control");
 166     strcpy(foo_cpu, argv[nb_para]);
 167     strcat(foo_cpu,"/cpu");
 168     strcpy(foo_info, argv[nb_para]);
 169     strcat(foo_info,"/info");
 170   }
 171   strcpy(foo_control_facilities, foo_control);
 172   strcat(foo_control_facilities,"/facilities");
 173   strcpy(foo_control_processes, foo_control);
 174   strcat(foo_control_processes, "/processes");
 175   strcpy(foo_control_interrupts, foo_control);
 176   strcat(foo_control_interrupts, "/interrupts");
 177   strcpy(foo_info_system, foo_info);
 178   strcat(foo_info_system, "/system.xml");
 179
 180
 181   getDataEndianType(arch_size, endian);
 182   printf("Arch_size: %s,  Endian: %s\n", arch_size, endian);
 183
 184   fp = fopen("sysInfo.out","r");
 185   if(!fp){
 186     g_error("Unable to open file sysInfo.out\n");
 187   }
 188
 189   for(i=0;i<INFO_ENTRY;i++){
 190     if(!fgets(buf,BUFFER_SIZE-1,fp))
 191       g_error("The format of sysInfo.out is not right\n");
 192     if(strncmp(buf,"node_name=",10)==0){
 193       strcpy(node_name,&buf[10]);
 194       node_name[strlen(node_name)-1] = '\0';
 195     }else if(strncmp(buf,"domainname=",11)==0){
 196       strcpy(domainname,&buf[11]);
 197       domainname[strlen(domainname)-1] = '\0';
 198     }else if(strncmp(buf,"kernel_name=",12)==0){
 199       strcpy(kernel_name,&buf[12]);
 200       kernel_name[strlen(kernel_name)-1] = '\0';
 201     }else if(strncmp(buf,"kernel_release=",15)==0){
 202       strcpy(kernel_release,&buf[15]);
 203       kernel_release[strlen(kernel_release)-1] = '\0';
 204     }else if(strncmp(buf,"kernel_version=",15)==0){
 205       strcpy(kernel_version,&buf[15]);
 206       kernel_version[strlen(kernel_version)-1] = '\0';
 207     }else if(strncmp(buf,"machine=",8)==0){
 208       strcpy(machine,&buf[8]);
 209       machine[strlen(machine)-1] = '\0';
 210     }else if(strncmp(buf,"processor=",10)==0){
 211       strcpy(processor,&buf[10]);
 212       processor[strlen(processor)-1] = '\0';
 213     }else if(strncmp(buf,"hardware_platform=",18)==0){
 214       strcpy(hardware_platform,&buf[18]);
 215       hardware_platform[strlen(hardware_platform)-1] = '\0';
 216     }else if(strncmp(buf,"operating_system=",17)==0){
 217       strcpy(operating_system,&buf[17]);
 218       operating_system[strlen(operating_system)-1] = '\0';
 219     }
 220   }
 221   fclose(fp);
 222
 223   if(mkdir(foo, S_IFDIR | S_IRWXU | S_IRGRP |  S_IROTH))
 224     g_error("can not make %s directory", foo);
 225   if(mkdir(foo_info, S_IFDIR | S_IRWXU | S_IRGRP |  S_IROTH))
 226     g_error("can not make %s directory", foo_info);
 227   if(mkdir(foo_cpu, S_IFDIR | S_IRWXU | S_IRGRP |  S_IROTH))
 228     g_error("can not make %s directory", foo_cpu);
 229   if(mkdir(foo_control, S_IFDIR | S_IRWXU | S_IRGRP |  S_IROTH))
 230     g_error("can not make %s directory", foo_control);
 231   if(mkdir(foo_eventdefs, S_IFDIR | S_IRWXU | S_IRGRP |  S_IROTH))
 232     g_error("can not make %s directory", foo_eventdefs);
 233
 234   fp = fopen(foo_info_system,"w");
 235   if(!fp){
 236     g_error("Unable to open file system.xml\n");
 237   }
 238
 239   fdFac = open(foo_control_facilities,O_CREAT | O_RDWR | O_TRUNC,S_IRUSR |S_IWUSR | S_IRGRP | S_IROTH);
 240   if(fdFac < 0){
 241     g_error("Unable to open file facilities\n");
 242   }
 243   fdIntr = open(foo_control_interrupts,O_CREAT | O_RDWR | O_TRUNC,S_IRUSR |S_IWUSR | S_IRGRP | S_IROTH);
 244   if(fdIntr<0){
 245     g_error("Unable to open file interrupts\n");
 246   }
 247   fdProc = open(foo_control_processes,O_CREAT | O_RDWR | O_TRUNC,S_IRUSR |S_IWUSR | S_IRGRP | S_IROTH);
 248   if(fdProc<0){
 249     g_error("Unable to open file process\n");
 250   }
 251
 252
 253   for(k=0;k<cpu;k++){
 254     fd = open(argv[nb_para-cpu+k], O_RDONLY, 0);
 255     if(fd < 0){
 256       g_error("Unable to open input data file %s\n", argv[nb_para-cpu+k]);
 257     }
 258
 259     if(fstat(fd, &lTDFStat) < 0){
 260       g_error("Unable to get the status of the input data file\n");
 261     }
 262     file_size = lTDFStat.st_size;
 263
 264     buffer = g_new(char, 4000);
 265     readFile(fd,(void*)buffer, 3500, "Unable to read block header");
 266
 267     cur_pos= buffer;
 268     evId = *(uint8_t *)cur_pos;
 269     cur_pos += sizeof(uint8_t);
 270     newId = evId;
 271     time_delta = *(uint32_t*)cur_pos;
 272     cur_pos += sizeof(uint32_t);
 273     tBufStart = (trace_buffer_start*)cur_pos;
 274     cur_pos += sizeof(trace_buffer_start);
 275     cur_pos += sizeof(uint16_t); //Skip event size
 276
 277     evId = *(uint8_t *)cur_pos;
 278     cur_pos += sizeof(uint8_t);
 279     cur_pos += sizeof(uint32_t);
 280     tStart = (trace_start*)cur_pos;
 281
 282     startId = newId;
 283     startTimeDelta = time_delta;
 284     start.seconds = tBufStart->Time.tv_sec;
 285     start.nanoseconds = tBufStart->Time.tv_usec;
 286     start.cycle_count = tBufStart->TSC;
 287     start.block_id = tBufStart->ID;
 288     end.block_id = start.block_id;
 289
 290     ltt_major_version = tStart->MajorVersion;
 291     ltt_minor_version = tStart->MinorVersion;
 292     ltt_block_size    = tStart->BufferSize;
 293     ltt_log_cpu       = tStart->LogCPUID;
 294
 295     block_size = ltt_block_size;
 296     block_number = file_size/block_size;
 297
 298     g_free(buffer);
 299     buffer         = g_new(char, block_size);
 300     buf_fac        = g_new(char, block_size);
 301     write_pos_fac  = buf_fac;
 302     buf_intr       = g_new(char, block_size);
 303     write_pos_intr = buf_intr;
 304     buf_proc       = g_new(char, block_size);
 305     write_pos_proc = buf_proc;
 306
 307     buf_out = g_new(char, block_size);
 308     write_pos = buf_out;
 309     sprintf(cpuStr,"%s/%d\0",foo_cpu,k);
 310     fdCpu = open(cpuStr, O_CREAT | O_RDWR | O_TRUNC,S_IRUSR |S_IWUSR | S_IRGRP | S_IROTH); //for cpu k
 311     if(fdCpu < 0)  g_error("Unable to open  cpu file %d\n", k);
 312     lseek(fd,0,SEEK_SET);
 313
 314     for(i=0;i<block_number;i++){
 315       int event_count = 0;
 316       beat_count = 0;
 317
 318       memset((void*)buf_out, 0, block_size);
 319       write_pos = buf_out;
 320       memset((void*)buf_intr, 0, block_size);
 321       memset((void*)buf_fac, 0, block_size);
 322       memset((void*)buf_proc, 0, block_size);
 323       write_pos_intr = buf_intr;
 324       write_pos_fac = buf_fac;
 325       write_pos_proc = buf_proc;
 326
 327       memset((void*)buffer,0,block_size);
 328       readFile(fd,(void*)buffer, block_size, "Unable to read block header");
 329
 330       cur_pos= buffer;
 331       evId = *(uint8_t *)cur_pos;
 332       cur_pos += sizeof(uint8_t);
 333       newId = evId;
 334       time_delta = *(uint32_t*)cur_pos;
 335       cur_pos += sizeof(uint32_t);
 336       tBufStart = (trace_buffer_start*)cur_pos;
 337       cur_pos += sizeof(trace_buffer_start);
 338       cur_pos += sizeof(uint16_t); //Skip event size
 339
 340       startId = newId;
 341       startTimeDelta = time_delta;
 342       previous_time_delta = time_delta;
 343       start.seconds = tBufStart->Time.tv_sec;
 344       start.nanoseconds = tBufStart->Time.tv_usec;
 345       start.cycle_count = tBufStart->TSC;
 346       start.block_id = tBufStart->ID;
 347       end.block_id = start.block_id;
 348
 349       end_pos = buffer + block_size; //end of the buffer
 350       size_lost = *(uint32_t*)(end_pos - sizeof(uint32_t));
 351
 352       end_pos = buffer + block_size - size_lost ; //buffer_end event
 353       if(ltt_log_cpu){
 354         tBufEnd = (trace_buffer_end*)(end_pos + 2 * sizeof(uint8_t)+sizeof(uint32_t));
 355       }else{
 356         tBufEnd = (trace_buffer_end*)(end_pos+sizeof(uint8_t)+sizeof(uint32_t));
 357       }
 358       end.seconds = tBufEnd->Time.tv_sec;
 359       end.nanoseconds = tBufEnd->Time.tv_usec;
 360       end.cycle_count = tBufEnd->TSC;
 361
 362       //skip buffer start and trace start events
 363       if(i==0) //the first block
 364         cur_pos = buffer + sizeof(trace_buffer_start) + sizeof(trace_start) + 2*(sizeof(uint8_t)+sizeof(uint16_t)+sizeof(uint32_t));
 365       else //other blocks
 366         cur_pos = buffer + sizeof(trace_buffer_start) + sizeof(uint8_t)+sizeof(uint16_t)+sizeof(uint32_t);
 367
 368       //write start block event
 369       write_to_buffer(write_pos,(void*)&startId, sizeof(uint16_t));
 370       write_to_buffer(write_pos,(void*)&startTimeDelta, sizeof(uint32_t));
 371       write_to_buffer(write_pos,(void*)&start, sizeof(buffer_start));
 372
 373       //write start block event into processes and interrupts files
 374       write_to_buffer(write_pos_intr,(void*)&startId, sizeof(uint16_t));
 375       write_to_buffer(write_pos_intr,(void*)&startTimeDelta, sizeof(uint32_t));
 376       start_intr = start;
 377       start_intr.nanoseconds -= 20;
 378       write_to_buffer(write_pos_intr,(void*)&start_intr, sizeof(buffer_start));
 379
 380       write_to_buffer(write_pos_proc,(void*)&startId, sizeof(uint16_t));
 381       write_to_buffer(write_pos_proc,(void*)&startTimeDelta, sizeof(uint32_t));
 382       start_proc = start;
 383       start_proc.nanoseconds -= 40;
 384       write_to_buffer(write_pos_proc,(void*)&start_proc, sizeof(buffer_start));
 385
 386       //parse *.proc file to get process and irq info
 387       if(i == 0){
 388         int        lIntID;                 /* Interrupt ID */
 389         int        lPID, lPPID;            /* Process PID and Parent PID */
 390         char       lName[256];             /* Process name */
 391         FILE *          fProc;
 392         uint16_t        defaultId;
 393         trace_irq_entry irq;
 394
 395         fProc = fopen(argv[1],"r");
 396         if(!fProc){
 397           g_error("Unable to open file %s\n", argv[1]);
 398         }
 399
 400         while(fscanf(fProc, "PID: %d; PPID: %d; NAME: %s\n", &lPID, &lPPID, lName) > 0){
 401           defaultId = PROCESS_FORK_ID;
 402           process.event_data1 = lPID;
 403           process.event_data2 = lPPID;
 404           write_to_buffer(write_pos_proc,(void*)&defaultId, sizeof(uint16_t));
 405           write_to_buffer(write_pos_proc,(void*)&startTimeDelta, sizeof(uint32_t));
 406           write_to_buffer(write_pos_proc,(void*)&process, sizeof(new_process));
 407         }
 408
 409         while(fscanf(fProc, "IRQ: %d; NAME: ", &lIntID) > 0){
 410           /* Read 'til the end of the line */
 411           fgets(lName, 200, fProc);
 412
 413           defaultId =  TRACE_IRQ_ENTRY;
 414           irq.irq_id = lIntID;
 415           irq.kernel = 1;
 416           write_to_buffer(write_pos_intr,(void*)&defaultId, sizeof(uint16_t));
 417           write_to_buffer(write_pos_intr,(void*)&startTimeDelta, sizeof(uint32_t));
 418           write_to_buffer(write_pos_intr,(void*)&irq, sizeof(trace_irq_entry));
 419         }
 420         fclose(fProc);
 421       }
 422
 423       while(1){
 424         int event_size;
 425         uint64_t timeDelta;
 426         uint8_t  subId;
 427
 428         if(ltt_log_cpu){
 429           cpu_id = *(uint8_t*)cur_pos;
 430           cur_pos += sizeof(uint8_t);
 431         }
 432         evId = *(uint8_t *)cur_pos;
 433         newId = evId;
 434         if(evId == TRACE_HEARTBEAT) {
 435           newId = TRACE_HEARTBEAT_ID;
 436         }
 437         cur_pos += sizeof(uint8_t);
 438         time_delta = *(uint32_t*)cur_pos;
 439         cur_pos += sizeof(uint32_t);
 440
 441         if(time_delta < previous_time_delta){
 442           end.cycle_count += OVERFLOW_FIGURE;
 443         }
 444         previous_time_delta = time_delta;
 445
 446         //write event_id and time_delta
 447         write_to_buffer(write_pos,(void*)&newId,sizeof(uint16_t));
 448         write_to_buffer(write_pos,(void*)&time_delta, sizeof(uint32_t));
 449
 450         if(evId == TRACE_BUFFER_END){
 451           int size = block_size + ((void*)buf_out - write_pos)+ sizeof(uint16_t) + sizeof(uint32_t);
 452           write_to_buffer(write_pos,(void*)&end,sizeof(buffer_start));
 453           write_pos = buf_out + block_size - sizeof(uint32_t);
 454           write_to_buffer(write_pos,(void*)&size, sizeof(uint32_t));
 455           write(fdCpu,(void*)buf_out, block_size);
 456
 457           //write out processes and intrrupts files
 458           {
 459             int size_intr = block_size - (write_pos_intr - (void*)buf_intr);
 460             int size_proc = block_size - (write_pos_proc - (void*)buf_proc);
 461             write_to_buffer(write_pos_intr,(void*)&newId,sizeof(uint16_t));
 462             write_to_buffer(write_pos_intr,(void*)&time_delta, sizeof(uint32_t));
 463             end_intr = end;
 464             end_intr.nanoseconds -= 20;
 465             write_to_buffer(write_pos_intr,(void*)&end_intr,sizeof(buffer_start));
 466
 467             write_to_buffer(write_pos_proc,(void*)&newId,sizeof(uint16_t));
 468             write_to_buffer(write_pos_proc,(void*)&time_delta, sizeof(uint32_t));
 469             end_proc = end;
 470             end_proc.nanoseconds -= 40;
 471             write_to_buffer(write_pos_proc,(void*)&end_proc,sizeof(buffer_start));
 472
 473             write_pos_intr = buf_intr + block_size - sizeof(uint32_t);
 474             write_pos_proc = buf_proc + block_size - sizeof(uint32_t);
 475             write_to_buffer(write_pos_intr,(void*)&size_intr, sizeof(uint32_t));
 476             write_to_buffer(write_pos_proc,(void*)&size_proc, sizeof(uint32_t));
 477             //for now don't output processes and interrupt information
 478             //    write(fdIntr,(void*)buf_intr,block_size);
 479             //    write(fdProc,(void*)buf_proc,block_size);
 480           }
 481           break;
 482         }
 483
 484         event_count++;
 485         switch(evId){
 486           case TRACE_SYSCALL_ENTRY:
 487             event_size = sizeof(trace_syscall_entry);
 488             break;
 489           case TRACE_SYSCALL_EXIT:
 490             event_size = 0;
 491             break;
 492           case TRACE_TRAP_ENTRY:
 493             event_size = sizeof(trace_trap_entry);
 494             break;
 495           case TRACE_TRAP_EXIT:
 496             event_size = 0;
 497             break;
 498           case TRACE_IRQ_ENTRY:
 499             event_size = sizeof(trace_irq_entry);
 500             timeDelta = time_delta;
 501             write_to_buffer(write_pos_intr,(void*)&newId, sizeof(uint16_t));
 502             write_to_buffer(write_pos_intr,(void*)&timeDelta, sizeof(uint32_t));
 503             write_to_buffer(write_pos_intr,cur_pos, event_size);
 504             break;
 505           case TRACE_IRQ_EXIT:
 506             event_size = 0;
 507             timeDelta = time_delta;
 508             write_to_buffer(write_pos_intr,(void*)&newId, sizeof(uint16_t));
 509             write_to_buffer(write_pos_intr,(void*)&timeDelta, sizeof(uint32_t));
 510             break;
 511           case TRACE_SCHEDCHANGE:
 512             event_size = sizeof(trace_schedchange);
 513             break;
 514           case TRACE_KERNEL_TIMER:
 515             event_size = 0;
 516             break;
 517           case TRACE_SOFT_IRQ:
 518             event_size = sizeof(trace_soft_irq);
 519             //    timeDelta = time_delta;
 520             //    write_to_buffer(write_pos_intr,(void*)&newId, sizeof(uint16_t));
 521             //    write_to_buffer(write_pos_intr,(void*)&timeDelta, sizeof(uint32_t));
 522             //    write_to_buffer(write_pos_intr,cur_pos, event_size);
 523             break;
 524           case TRACE_PROCESS:
 525             event_size = sizeof(trace_process);
 526             timeDelta = time_delta;
 527             subId = *(uint8_t*)cur_pos;
 528             if(subId == TRACE_PROCESS_FORK || subId ==TRACE_PROCESS_EXIT){
 529               if( subId == TRACE_PROCESS_FORK)tmpId = PROCESS_FORK_ID;
 530               else tmpId = PROCESS_EXIT_ID;
 531               write_to_buffer(write_pos_proc,(void*)&tmpId, sizeof(uint16_t));
 532               write_to_buffer(write_pos_proc,(void*)&timeDelta, sizeof(uint32_t));
 533
 534               process = *(new_process*)(cur_pos + sizeof(uint8_t));
 535               write_to_buffer(write_pos_proc,(void*)&process, sizeof(new_process));
 536             }
 537             break;
 538           case TRACE_FILE_SYSTEM:
 539             event_size = sizeof(trace_file_system)- sizeof(char*);
 540             break;
 541           case TRACE_TIMER:
 542             event_size = sizeof(trace_timer);
 543             break;
 544           case TRACE_MEMORY:
 545             event_size = sizeof(trace_memory);
 546             break;
 547           case TRACE_SOCKET:
 548             event_size = sizeof(trace_socket);
 549             break;
 550           case TRACE_IPC:
 551             event_size = sizeof(trace_ipc);
 552             break;
 553           case TRACE_NETWORK:
 554             event_size = sizeof(trace_network);
 555             break;
 556           case TRACE_HEARTBEAT:
 557             beat_count++;
 558             beat.seconds = 0;
 559             beat.nanoseconds = 0;
 560             beat.cycle_count = start.cycle_count + beat_count * OVERFLOW_FIGURE;
 561             event_size = 0;
 562
 563             //    end.cycle_count += OVERFLOW_FIGURE;
 564
 565             write_to_buffer(write_pos_intr,(void*)&newId, sizeof(uint16_t));
 566             write_to_buffer(write_pos_intr,(void*)&timeDelta, sizeof(uint32_t));
 567             write_to_buffer(write_pos_intr,(void*)&beat, sizeof(heartbeat));
 568             write_to_buffer(write_pos_proc,(void*)&newId, sizeof(uint16_t));
 569             write_to_buffer(write_pos_proc,(void*)&timeDelta, sizeof(uint32_t));
 570             write_to_buffer(write_pos_proc,(void*)&beat, sizeof(heartbeat));
 571             break;
 572           default:
 573             event_size = -1;
 574             break;
 575         }
 576         if(evId != TRACE_FILE_SYSTEM && event_size >=0){
 577           write_to_buffer(write_pos, cur_pos, event_size);
 578
 579           if(evId == TRACE_HEARTBEAT){
 580             write_to_buffer(write_pos, (void*)&beat, sizeof(heartbeat));
 581           }
 582
 583           cur_pos += event_size + sizeof(uint16_t); //skip data_size
 584         }else if(evId == TRACE_FILE_SYSTEM){
 585           size_t nbBytes;
 586           char  c = '\0';
 587           tFileSys = (trace_file_system*)cur_pos;
 588           subId = tFileSys->event_sub_id;
 589           if(subId == TRACE_FILE_SYSTEM_OPEN || subId == TRACE_FILE_SYSTEM_EXEC){
 590             nbBytes = tFileSys->event_data2 +1;
 591           }else nbBytes = 0;
 592
 593           write_to_buffer(write_pos, cur_pos, event_size);
 594           cur_pos += event_size + sizeof(char*);
 595           if(nbBytes){
 596             write_to_buffer(write_pos, cur_pos, nbBytes);
 597           }else{
 598             write_to_buffer(write_pos, (void*)&c, 1);
 599           }
 600           cur_pos += nbBytes + sizeof(uint16_t); //skip data_size
 601         }else if(event_size == -1){
 602           printf("Unknown event: evId=%d, i=%d, event_count=%d\n", newId, i, event_count);
 603           exit(1);
 604         }
 605       } //end while(1)
 606     }
 607     close(fd);
 608     close(fdCpu);
 609     g_free(buffer);
 610     buffer = NULL;
 611     g_free(buf_fac);
 612     g_free(buf_intr);
 613     g_free(buf_proc);
 614     g_free(buf_out);
 615   }
 616
 617
 618
 619
 620
 621   //write to system.xml
 622   fprintf(fp,"<system \n");
 623   fprintf(fp,"node_name=\"%s\" \n", node_name);
 624   fprintf(fp,"domainname=\"%s\" \n", domainname);
 625   fprintf(fp,"cpu=\"%d\" \n", cpu);
 626   fprintf(fp,"arch_size=\"%s\" \n", arch_size);
 627   fprintf(fp,"endian=\"%s\" \n",endian);
 628   fprintf(fp,"kernel_name=\"%s\" \n",kernel_name);
 629   fprintf(fp,"kernel_release=\"%s\" \n",kernel_release);
 630   fprintf(fp,"kernel_version=\"%s\" \n",kernel_version);
 631   fprintf(fp,"machine=\"%s\" \n",machine);
 632   fprintf(fp,"processor=\"%s\" \n",processor);
 633   fprintf(fp,"hardware_platform=\"%s\" \n",hardware_platform);
 634   fprintf(fp,"operating_system=\"%s\" \n",operating_system);
 635   fprintf(fp,"ltt_major_version=\"%d\" \n",ltt_major_version);
 636   fprintf(fp,"ltt_minor_version=\"%d\" \n",ltt_minor_version);
 637   fprintf(fp,"ltt_block_size=\"%d\" \n",ltt_block_size);
 638   fprintf(fp,">\n");
 639   fprintf(fp,"This is just a test\n");
 640   fprintf(fp,"</system>\n");
 641   fflush(fp);
 642
 643   close(fdFac);
 644   close(fdIntr);
 645   close(fdProc);
 646   fclose(fp);
 647
 648 }
 649