skip nested logging
[lttv.git] / genevent / genevent.c
index 14bc6ddd720d2b061ba74ad26e64cf8e8d25e85d..09131e969f2f665b0a010a78bd4bb995d7a0a1df 100644 (file)
@@ -40,7 +40,7 @@ This program is distributed in the hope that it will be useful,
 #include <stdio.h>
 #include <stdarg.h>
 #include <linux/errno.h>  
-
+#include <assert.h>
 
 #include "parser.h"
 #include "genevent.h"
@@ -81,19 +81,19 @@ int main(int argc, char** argv)
       token = getName(&in);
     
       if(strcmp("facility",token) == 0) {
-                               fac = memAlloc(sizeof(facility));
-                               fac->name = NULL;
-                               fac->description = NULL;
-                               sequence_init(&(fac->events));
-                               table_init(&(fac->named_types));
-                               sequence_init(&(fac->unnamed_types));
-                               
-                               parseFacility(&in, fac);
-                               
-                               //check if any namedType is not defined
-                               checkNamedTypesImplemented(&fac->named_types);
+        fac = memAlloc(sizeof(facility));
+        fac->name = NULL;
+        fac->description = NULL;
+        sequence_init(&(fac->events));
+        table_init(&(fac->named_types));
+        sequence_init(&(fac->unnamed_types));
+        
+        parseFacility(&in, fac);
+        
+        //check if any namedType is not defined
+        checkNamedTypesImplemented(&fac->named_types);
       }
-                       else in.error(&in,"facility token was expected");
+      else in.error(&in,"facility token was expected");
 
       generateFile(argv[i]);
 
@@ -123,8 +123,8 @@ int main(int argc, char** argv)
  *    name         : name of event definition file
  ****************************************************************************/
 void generateFile(char *name){
-  char *loadName, *hName, *tmp, *tmp2;
-  FILE * lFp, *hFp;
+  char *loadName, *hName, *hIdName, *cName, *tmp, *tmp2;
+  FILE * lFp, *hFp, *iFp, *cFp;
   int nbEvent;
   unsigned long checksum=0;
 
@@ -149,6 +149,14 @@ void generateFile(char *name){
   tmp2 = appendString(hName,".h");
   free(hName);
   hName = tmp2;
+  hIdName = appendString("ltt-facility-id-", tmp);
+  tmp2 = appendString(hIdName,".h");
+  free(hIdName);
+  hIdName = tmp2;
+  cName = appendString("ltt-facility-loader-", tmp);
+  tmp2 = appendString(cName,".c");
+  free(cName);
+  cName = tmp2;
   lFp = fopen(loadName,"w");
   if(!lFp){
     printf("Cannot open the file : %s\n",loadName);
@@ -160,28 +168,50 @@ void generateFile(char *name){
      printf("Cannot open the file : %s\n",hName);
      exit(1);
   }
+
+  iFp = fopen(hIdName,"w");
+  if(!iFp){
+     printf("Cannot open the file : %s\n",hIdName);
+     exit(1);
+  }
+  
+  cFp = fopen(cName,"w");
+  if(!cFp){
+     printf("Cannot open the file : %s\n",cName);
+     exit(1);
+  }
   
   free(loadName);
   free(hName);
+  free(hIdName);
+  free(cName);
 
   generateChecksum(fac->name, &checksum, &(fac->events));
 
   /* generate .h file, event enumeration then structures and functions */
-       fprintf(hFp, "#ifndef _LTT_FACILITY_%s_H_\n",fac->capname);
-       fprintf(hFp, "#define _LTT_FACILITY_%s_H_\n\n",fac->capname);
-  generateEnumEvent(hFp, fac->name, &nbEvent, checksum);
-  generateTypeDefs(hFp);
+  fprintf(iFp, "#ifndef _LTT_FACILITY_ID_%s_H_\n",fac->capname);
+  fprintf(iFp, "#define _LTT_FACILITY_ID_%s_H_\n\n",fac->capname);
+  generateEnumEvent(iFp, fac->name, &nbEvent, checksum);
+  fprintf(iFp, "#endif //_LTT_FACILITY_ID_%s_H_\n",fac->capname);
+
+
+  fprintf(hFp, "#ifndef _LTT_FACILITY_%s_H_\n",fac->capname);
+  fprintf(hFp, "#define _LTT_FACILITY_%s_H_\n\n",fac->capname);
+  generateTypeDefs(hFp, fac->name);
   generateStructFunc(hFp, fac->name,checksum);
-       fprintf(hFp, "#endif //_LTT_FACILITY_%s_H_\n",fac->capname);
+  fprintf(hFp, "#endif //_LTT_FACILITY_%s_H_\n",fac->capname);
 
   /* generate .h file, calls to register the facility at init time */
-       fprintf(lFp, "#ifndef _LTT_FACILITY_LOADER_%s_H_\n",fac->capname);
-       fprintf(lFp, "#define _LTT_FACILITY_LOADER_%s_H_\n\n",fac->capname);
-  generateLoaderfile(lFp,fac->name,nbEvent,checksum);
-       fprintf(lFp, "#endif //_LTT_FACILITY_LOADER_%s_H_\n",fac->capname);
+  generateLoaderfile(lFp,fac->name,nbEvent,checksum,fac->capname);
+
+  // create ltt-facility-loader-facname.c
+  generateCfile(cFp, tmp);
 
   fclose(hFp);
+  fclose(iFp);
   fclose(lFp);
+  fclose(cFp);
+
 }
 
 
@@ -197,16 +227,17 @@ void generateFile(char *name){
 void generateEnumEvent(FILE *fp, char *facName, int * nbEvent, unsigned long checksum) {
   int pos = 0;
 
-  fprintf(fp,"#include <linux/ltt-log.h>\n\n");
+  fprintf(fp,"#include <linux/ltt-facilities.h>\n\n");
 
   fprintf(fp,"/****  facility handle  ****/\n\n");
-  fprintf(fp,"extern trace_facility_t ltt_facility_%s_%X;\n\n\n",facName, checksum);
+  fprintf(fp,"extern ltt_facility_t ltt_facility_%s_%X;\n",facName, checksum);
+  fprintf(fp,"extern ltt_facility_t ltt_facility_%s;\n\n\n",facName, checksum);
 
   fprintf(fp,"/****  event type  ****/\n\n");
   fprintf(fp,"enum %s_event {\n",facName);
 
   for(pos = 0; pos < fac->events.position;pos++) {
-    fprintf(fp,"\t%s", ((event *)(fac->events.array[pos]))->name);
+    fprintf(fp,"\tevent_%s", ((event *)(fac->events.array[pos]))->name);
     if(pos != fac->events.position-1) fprintf(fp,",\n");
   }
   fprintf(fp,"\n};\n\n\n");
@@ -233,7 +264,7 @@ void generateEnumEvent(FILE *fp, char *facName, int * nbEvent, unsigned long che
 
 static void
 printStruct(FILE * fp, int len, void ** array, char * name, char * facName,
-            int * whichTypeFirst, int * hasStrSeq, int * structCount)
+       int * whichTypeFirst, int * hasStrSeq, int * structCount)
 {
   int flag = 0;
   int pos;
@@ -243,23 +274,26 @@ printStruct(FILE * fp, int len, void ** array, char * name, char * facName,
   for (pos = 0; pos < len; pos++) {
     fld  = (field *)array[pos];
     td = fld->type;
-    if( td->type != STRING && td->type != SEQUENCE &&
-             td->type != ARRAY) {
-      if (*whichTypeFirst == 0) {
-        *whichTypeFirst = 1; //struct first
-      }
+    if( td->type == STRING || td->type == SEQUENCE ||
+        td->type == ARRAY) {
+        (*hasStrSeq)++;
+               }
+//      if (*whichTypeFirst == 0) {
+//        *whichTypeFirst = 1; //struct first
+//      }
       if (flag == 0) {
         flag = 1;
 
         fprintf(fp,"struct %s_%s",name, facName);
         if (structCount) {
-               fprintf(fp, "_%d {\n",++*structCount);
+          fprintf(fp, "_%d {\n",++*structCount);
         } else {
           fprintf(fp, " {\n");
         }
       }
       fprintf(fp, "\t%s %s; /* %s */\n", 
           getTypeStr(td),fld->name,fld->description );
+#if 0
     } else {
         if (*whichTypeFirst == 0) {
         //string or sequence or array first
@@ -271,6 +305,7 @@ printStruct(FILE * fp, int len, void ** array, char * name, char * facName,
         }
         flag = 0;
     }
+#endif //0
   }
 
   if(flag) {
@@ -286,10 +321,18 @@ printStruct(FILE * fp, int len, void ** array, char * name, char * facName,
  *    fp                : file to be written to
  ****************************************************************************/
 void
-generateTypeDefs(FILE * fp)
+generateTypeDefs(FILE * fp, char *facName)
 {
   int pos, tmp = 1;
 
+  fprintf(fp,"#include <linux/types.h>\n");
+  fprintf(fp,"#include <linux/spinlock.h>\n");
+  fprintf(fp,"#include <linux/ltt/ltt-facility-id-%s.h>\n\n", facName);
+  fprintf(fp,"#include <linux/ltt-core.h>\n");
+  fprintf(fp,"#ifdef CONFIG_UML\n");
+  fprintf(fp,"#include \"irq_user.h\"\n");
+  fprintf(fp,"#endif //CONFIG_UML\n");
+
   fprintf(fp, "/****  Basic Type Definitions  ****/\n\n");
 
   for (pos = 0; pos < fac->named_types.values.position; pos++) {
@@ -313,12 +356,20 @@ generateTypeDefs(FILE * fp)
 void generateEnumDefinition(FILE * fp, type_descriptor * type){
   int pos;
 
+  if(type->already_printed) return;
+  
   fprintf(fp,"enum {\n");
   for(pos = 0; pos < type->labels.position; pos++){
-    fprintf(fp,"\t%s", type->labels.array[pos]);
-    if (pos != type->labels.position - 1) fprintf(fp,",\n");
+    fprintf(fp,"\tLTT_ENUM_%s", type->labels.array[pos]);
+    if (pos != type->labels.position - 1) fprintf(fp,",");
+    if(type->labels_description.array[pos] != NULL)
+      fprintf(fp,"\t/* %s */\n",type->labels_description.array[pos]);
+    else
+      fprintf(fp,"\n");
   }
-  fprintf(fp,"\n};\n\n\n");
+  fprintf(fp,"};\n\n\n");
+
+  type->already_printed = 1;
 }
 
 /*****************************************************************************
@@ -338,19 +389,24 @@ void generateStructFunc(FILE * fp, char * facName, unsigned long checksum){
   for(pos = 0; pos < fac->events.position; pos++){
     ev = (event *) fac->events.array[pos];
     //yxx    if(ev->nested)continue;
-    fprintf(fp,"/****  structure and trace function for event: %s  ****/\n\n",ev->name);
-    if(ev->type == 0){ // event without type
-      fprintf(fp,"static inline void trace_%s_%s(void){\n",facName,ev->name);
-      fprintf(fp,"\tltt_log_event(ltt_facility_%s_%X, %s, 0, NULL);\n",facName,checksum,ev->name);
-      fprintf(fp,"};\n\n\n");
-      continue;
-    }
+    fprintf(fp,"/****  structure and trace function for event: %s  ****/\n\n",
+        ev->name);
+    //if(ev->type == 0){ // event without type
+    //  fprintf(fp,"static inline void trace_%s_%s(void){\n",facName,ev->name);
+    //  fprintf(fp,"\tltt_log_event(ltt_facility_%s_%X, event_%s, 0, NULL);\n",
+    //      facName,checksum,ev->name);
+    //  fprintf(fp,"};\n\n\n");
+    //  continue;
+    //}
 
     //if fields contain enum, print out enum definition
-    for(pos1 = 0; pos1 < ev->type->fields.position; pos1++){
-      fld = (field *)ev->type->fields.array[pos1];
-      if(fld->type->type == ENUM) generateEnumDefinition(fp, fld->type);      
-    }
+    //MD : fixed in generateEnumDefinition to do not print the same enum
+    //twice.
+    if(ev->type != 0)
+      for(pos1 = 0; pos1 < ev->type->fields.position; pos1++){
+        fld = (field *)ev->type->fields.array[pos1];
+        if(fld->type->type == ENUM) generateEnumDefinition(fp, fld->type);      
+      }
       
     //default: no string, array or sequence in the event
     hasStrSeq = 0;
@@ -358,29 +414,37 @@ void generateStructFunc(FILE * fp, char * facName, unsigned long checksum){
     structCount = 0;
 
     //structure for kernel
-    printStruct(fp, ev->type->fields.position, ev->type->fields.array,
-                 ev->name, facName, &whichTypeFirst, &hasStrSeq, &structCount);
+    if(ev->type != 0)
+      printStruct(fp, ev->type->fields.position, ev->type->fields.array,
+        ev->name, facName, &whichTypeFirst, &hasStrSeq, &structCount);
 
     //trace function : function name and parameters
     seqCount = 0;
     strCount = 0;
     fprintf(fp,"static inline void trace_%s_%s(",facName,ev->name);
-    for(pos1 = 0; pos1 < ev->type->fields.position; pos1++){
-      fld  = (field *)ev->type->fields.array[pos1];
-      td = fld->type;
-      if(td->type == ARRAY ){
-       fprintf(fp,"%s * %s",getTypeStr(td), fld->name);
-      }else if(td->type == STRING){
-       fprintf(fp,"short int strLength_%d, %s * %s",++strCount, getTypeStr(td), fld->name);
-     }else if(td->type == SEQUENCE){
-         fprintf(fp,"%s seqLength_%d, %s * %s",uintOutputTypes[td->size], ++seqCount,getTypeStr(td), fld->name);
-      }else  fprintf(fp,"%s %s",getTypeStr(td), fld->name);     
-      if(pos1 != ev->type->fields.position -1)fprintf(fp,", ");
-    }
-    fprintf(fp,"){\n");
+    if(ev->type == 0)
+      fprintf(fp, "void");
+    else
+      for(pos1 = 0; pos1 < ev->type->fields.position; pos1++){
+        fld  = (field *)ev->type->fields.array[pos1];
+        td = fld->type;
+        if(td->type == ARRAY ){
+          fprintf(fp,"%s * %s",getTypeStr(td), fld->name);
+        }else if(td->type == STRING){
+          fprintf(fp,"short int strlength_%d, %s * %s",
+              ++strCount, getTypeStr(td), fld->name);
+       }else if(td->type == SEQUENCE){
+          fprintf(fp,"%s seqlength_%d, %s * %s",
+              uintOutputTypes[td->size], ++seqCount,getTypeStr(td), fld->name);
+       }else fprintf(fp,"%s %s",getTypeStr(td), fld->name);     
+       if(pos1 != ev->type->fields.position - 1) fprintf(fp,", ");
+      }
+    fprintf(fp,")\n{\n");
 
     //length of buffer : length of all structures
-    fprintf(fp,"\tint bufLength = ");
+               fprintf(fp,"\tint length = ");
+    if(ev->type == 0) fprintf(fp, "0");
+
     for(pos1=0;pos1<structCount;pos1++){
       fprintf(fp,"sizeof(struct %s_%s_%d)",ev->name, facName,pos1+1);
       if(pos1 != structCount-1) fprintf(fp," + ");
@@ -390,59 +454,144 @@ void generateStructFunc(FILE * fp, char * facName, unsigned long checksum){
     seqCount = 0;
     strCount = 0;
     flag = 0;
-    for(pos1 = 0; pos1 < ev->type->fields.position; pos1++){
-      fld  = (field *)ev->type->fields.array[pos1];
-      td = fld->type;
-      if(td->type == SEQUENCE || td->type==STRING ||td->type==ARRAY){
-       if(structCount || flag > 0) fprintf(fp," + ");    
-       if(td->type == SEQUENCE) fprintf(fp,"sizeof(%s) + sizeof(%s) * seqLength_%d",uintOutputTypes[td->size], getTypeStr(td), ++seqCount);
-       else if(td->type==STRING) fprintf(fp,"strLength_%d + 1", ++strCount);
-       else if(td->type==ARRAY) fprintf(fp,"sizeof(%s) * %d", getTypeStr(td),td->size);
-       if(structCount == 0) flag = 1;
-      }
-    }
+               if(ev->type != 0)
+                       for(pos1 = 0; pos1 < ev->type->fields.position; pos1++){
+                               fld  = (field *)ev->type->fields.array[pos1];
+                               td = fld->type;
+                               if(td->type == SEQUENCE || td->type==STRING || td->type==ARRAY){
+                                       if(structCount || flag > 0) fprintf(fp," + ");    
+                                       if(td->type == SEQUENCE) 
+                                               fprintf(fp,"sizeof(%s) + sizeof(%s) * seqlength_%d",
+                                                               uintOutputTypes[td->size], getTypeStr(td), ++seqCount);
+                                       else if(td->type==STRING) fprintf(fp,"strlength_%d + 1", ++strCount);
+                                       else if(td->type==ARRAY) 
+                                               fprintf(fp,"sizeof(%s) * %d", getTypeStr(td),td->size);
+                                       if(structCount == 0) flag = 1;
+                               }
+                       }
     fprintf(fp,";\n");
 
     //allocate buffer
-    fprintf(fp,"\tchar buff[bufLength];\n");
+    // MD no more need. fprintf(fp,"\tchar buff[buflength];\n");
+    // write directly to the channel
+    fprintf(fp, "\tunsigned int index;\n");
+    fprintf(fp, "\tstruct ltt_channel_struct *channel;\n");
+    fprintf(fp, "\tstruct ltt_trace_struct *trace;\n");
+    fprintf(fp, "\tunsigned long _flags;\n");
+    fprintf(fp, "\tvoid *buff;\n");
+    fprintf(fp, "\tunsigned int header_length;\n");
+    fprintf(fp, "\tunsigned int event_length;\n");
+    fprintf(fp, "\tint resret;\n");
+
+               if(ev->type != 0)
+      fprintf(fp, "\tstruct %s_%s_1* __1;\n\n", ev->name, facName);
+
+    fprintf(fp, "\t/* Disable interrupts. */\n");
+    fprintf(fp, "\tlocal_irq_save(_flags);\n");
+    fprintf(fp, "\tpreempt_disable();\n\n");
+
+               fprintf(fp, "\tltt_nesting[smp_processor_id()]++;\n");
+               fprintf(fp, "\tif(ltt_nesting[smp_processor_id] > 1) goto unlock;\n");
+    fprintf(fp, "\tspin_lock(&ltt_traces.locks[smp_processor_id()]);\n\n");
+               
+    fprintf(fp,
+        "\tif(ltt_traces.num_active_traces == 0) goto unlock_traces;\n\n");
+
+    fprintf(fp, 
+        "\tindex = ltt_get_index_from_facility(ltt_facility_%s_%X,\n"\
+            "\t\t\t\tevent_%s);\n",
+        facName, checksum, ev->name);
+    fprintf(fp,"\n");
 
-    //declare a char pointer if needed
-    if(structCount + hasStrSeq > 1) fprintf(fp,"\tchar * ptr = buff;\n");
+    /* For each trace */
+    fprintf(fp, "\tlist_for_each_entry(trace, &ltt_traces.head, list) {\n");
+    fprintf(fp, "\t\tif(!trace->active) continue;\n\n");
     
-    //allocate memory for new struct and initialize it
-    if(whichTypeFirst == 1){ //struct first
-      for(pos1=0;pos1<structCount;pos1++){     
-       if(pos1==0) fprintf(fp,"\tstruct %s_%s_1 * __1 = (struct %s_%s_1 *)buff;\n",ev->name, facName,ev->name, facName);
-       else fprintf(fp,"\tstruct %s_%s_%d  __%d;\n",ev->name, facName,pos1+1,pos1+1);
-      }      
-    }else if(whichTypeFirst == 2){
-      for(pos1=0;pos1<structCount;pos1++)
-       fprintf(fp,"\tstruct %s_%s_%d  __%d;\n",ev->name, facName,pos1+1,pos1+1);
+    fprintf(fp, "\t\theader_length = "
+                "ltt_get_event_header_size(trace);\n");
+    fprintf(fp, "\t\tevent_length = header_length + length;\n");
+   
+    /* Reserve the channel */
+    fprintf(fp, "\t\tchannel = ltt_get_channel_from_index(trace, index);\n");
+    fprintf(fp, "\t\tbuff = relay_reserve(channel->rchan, event_length, &resret);\n");
+    fprintf(fp, "\t\tif(buff == NULL) {\n");
+    fprintf(fp, "\t\t\t/* Buffer is full*/\n");
+    fprintf(fp, "\t\t\t/* for debug BUG(); */\n"); // DEBUG!
+    fprintf(fp, "\t\t\tchannel->events_lost[smp_processor_id()]++;\n");
+    fprintf(fp, "\t\t\tbreak;\n");      /* don't commit a NULL reservation! */
+    fprintf(fp, "\t\t}\n");
+               
+               /* DEBUG */
+    fprintf(fp, "\t\tif(resret == 1) {\n");
+               fprintf(fp, "printk(\"f%%lu e\%%u \", ltt_facility_%s_%X, event_%s);",
+                               facName, checksum, ev->name);
+    fprintf(fp, "\t\t}\n");
+
+    /* Write the header */
+    fprintf(fp, "\n");
+    fprintf(fp, "\t\tltt_write_event_header(trace, channel, buff, \n"
+                "\t\t\t\tltt_facility_%s_%X, event_%s, length);\n",
+                facName, checksum, ev->name);
+    fprintf(fp, "\n");
+    
+    //declare a char pointer if needed : starts at the end of the structs.
+    if(structCount + hasStrSeq > 1) {
+      fprintf(fp,"\t\tchar * ptr = (char*)buff + header_length");
+      for(pos1=0;pos1<structCount;pos1++){
+        fprintf(fp," + sizeof(struct %s_%s_%d)",ev->name, facName,pos1+1);
+      }
+      if(structCount + hasStrSeq > 1) fprintf(fp,";\n");
     }
+
+    // Declare an alias pointer of the struct type to the beginning
+    // of the reserved area, just after the event header.
+               if(ev->type != 0)
+      fprintf(fp, "\t\t__1 = (struct %s_%s_1 *)(buff + header_length);\n",
+          ev->name, facName);
+    //allocate memory for new struct and initialize it
+    //if(whichTypeFirst == 1){ //struct first
+      //for(pos1=0;pos1<structCount;pos1++){  
+      //  if(pos1==0) fprintf(fp,
+      //      "\tstruct %s_%s_1 * __1 = (struct %s_%s_1 *)buff;\n",
+      //      ev->name, facName,ev->name, facName);
+  //MD disabled      else fprintf(fp,
+  //          "\tstruct %s_%s_%d  __%d;\n",
+  //          ev->name, facName,pos1+1,pos1+1);
+      //}      
+    //}else if(whichTypeFirst == 2){
+     // for(pos1=0;pos1<structCount;pos1++)
+     //   fprintf(fp,"\tstruct %s_%s_%d  __%d;\n",
+     //       ev->name, facName,pos1+1,pos1+1);
+    //}
     fprintf(fp,"\n");
 
-    if(structCount) fprintf(fp,"\t//initialize structs\n");
-    flag = 0;
-    structCount = 0;
-    for(pos1 = 0; pos1 < ev->type->fields.position; pos1++){
-      fld  = (field *)ev->type->fields.array[pos1];
-      td = fld->type;
-      if(td->type != ARRAY && td->type != SEQUENCE && td->type != STRING){
-       if(flag == 0){
-         flag = 1;     
-         structCount++;
-         if(structCount > 1) fprintf(fp,"\n");
-       }
-       if(structCount == 1 && whichTypeFirst == 1) fprintf(fp, "\t__1->%s =  %s;\n",fld->name,fld->name );
-       else fprintf(fp, "\t__%d.%s =  %s;\n",structCount ,fld->name,fld->name);
-      }else flag = 0;
-    }
+    if(structCount) fprintf(fp,"\t\t//initialize structs\n");
+    //flag = 0;
+    //structCount = 0;
+               if(ev->type != 0)
+                       for(pos1 = 0; pos1 < ev->type->fields.position; pos1++){
+                               fld  = (field *)ev->type->fields.array[pos1];
+                               td = fld->type;
+                               if(td->type != ARRAY && td->type != SEQUENCE && td->type != STRING){
+                                       //if(flag == 0){
+                                       //  flag = 1;  
+                                       //  structCount++;
+                                       //  if(structCount > 1) fprintf(fp,"\n");
+                                       //}
+                                       fprintf(fp, "\t\t__1->%s = %s;\n", fld->name, fld->name );
+
+                               //if(structCount == 1 && whichTypeFirst == 1)
+                               //  fprintf(fp, "\t__1->%s =  %s;\n",fld->name,fld->name );
+                               //else 
+                               //  fprintf(fp, "\t__%d.%s =  %s;\n",structCount ,fld->name,fld->name);
+                               }
+                               //else flag = 0;
+                       }
     if(structCount) fprintf(fp,"\n");
-
     //set ptr to the end of first struct if needed;
-    if(whichTypeFirst == 1 && structCount + hasStrSeq > 1){
-      fprintf(fp,"\n\t//set ptr to the end of the first struct\n");
-      fprintf(fp,"\tptr +=  sizeof(struct %s_%s_1);\n\n",ev->name, facName);
+    if(structCount + hasStrSeq > 1){
+      fprintf(fp,"\n\t\t//set ptr to the end of the first struct\n");
+      fprintf(fp,"\t\tptr +=  sizeof(struct %s_%s_1);\n\n",ev->name, facName);
     }
 
     //copy struct, sequence and string to buffer
@@ -450,47 +599,77 @@ void generateStructFunc(FILE * fp, char * facName, unsigned long checksum){
     strCount = 0;
     flag = 0;
     structCount = 0;
-    for(pos1 = 0; pos1 < ev->type->fields.position; pos1++){
-      fld  = (field *)ev->type->fields.array[pos1];
-      td = fld->type;
-      if(td->type != STRING && td->type != SEQUENCE && td->type != ARRAY){
-       if(flag == 0) structCount++;    
-       flag++; 
-       if((structCount > 1 || whichTypeFirst == 2) && flag == 1){
-         fprintf(fp,"\t//copy struct to buffer\n");
-         fprintf(fp,"\tmemcpy(ptr, &__%d, sizeof(struct %s_%s_%d));\n",structCount, ev->name, facName,structCount);
-         fprintf(fp,"\tptr +=  sizeof(struct %s_%s_%d);\n\n",ev->name, facName,structCount);
-       }
-      }else if(td->type == SEQUENCE){
-       flag = 0;
-       fprintf(fp,"\t//copy sequence length and sequence to buffer\n");
-       fprintf(fp,"\t*ptr = seqLength_%d;\n",++seqCount);
-       fprintf(fp,"\tptr += sizeof(%s);\n",uintOutputTypes[td->size]);
-       fprintf(fp,"\tmemcpy(ptr, %s, sizeof(%s) * seqLength_%d);\n",fld->name, getTypeStr(td), seqCount);
-       fprintf(fp,"\tptr += sizeof(%s) * seqLength_%d;\n\n",getTypeStr(td), seqCount );
-      }else if(td->type==STRING){
-       flag = 0;
-       fprintf(fp,"\t//copy string to buffer\n");
-       fprintf(fp,"\tif(strLength_%d > 0){\n",++strCount);
-       fprintf(fp,"\t\tmemcpy(ptr, %s, strLength_%d + 1);\n", fld->name, strCount);
-       fprintf(fp,"\t\tptr += strLength_%d + 1;\n",strCount);
-       fprintf(fp,"\t}else{\n");
-       fprintf(fp,"\t\t*ptr = '\\0';\n");
-       fprintf(fp,"\t\tptr += 1;\n");
-       fprintf(fp,"\t}\n\n");
-      }else if(td->type==ARRAY){
-       flag = 0;
-       fprintf(fp,"\t//copy array to buffer\n");
-       fprintf(fp,"\tmemcpy(ptr, %s, sizeof(%s) * %d);\n", fld->name, getTypeStr(td), td->size);
-       fprintf(fp,"\tptr += sizeof(%s) * %d;\n\n",getTypeStr(td), td->size);
-      }      
-    }    
+               if(ev->type != 0)
+                       for(pos1 = 0; pos1 < ev->type->fields.position; pos1++){
+                               fld  = (field *)ev->type->fields.array[pos1];
+                               td = fld->type;
+       //      if(td->type != STRING && td->type != SEQUENCE && td->type != ARRAY){
+       //        if(flag == 0) structCount++;  
+       //        flag++;  
+       //        if((structCount > 1 || whichTypeFirst == 2) && flag == 1){
+       //          assert(0); // MD : disabled !
+       //          fprintf(fp,"\t//copy struct to buffer\n");
+       //          fprintf(fp,"\tmemcpy(ptr, &__%d, sizeof(struct %s_%s_%d));\n",
+       //              structCount, ev->name, facName,structCount);
+       //          fprintf(fp,"\tptr +=  sizeof(struct %s_%s_%d);\n\n",
+       //              ev->name, facName,structCount);
+       //        }
+        //     }
+                               //else if(td->type == SEQUENCE){
+                               if(td->type == SEQUENCE){
+                                       flag = 0;
+                                       fprintf(fp,"\t\t//copy sequence length and sequence to buffer\n");
+                                       fprintf(fp,"\t\t*ptr = seqlength_%d;\n",++seqCount);
+                                       fprintf(fp,"\t\tptr += sizeof(%s);\n",uintOutputTypes[td->size]);
+                                       fprintf(fp,"\t\tmemcpy(ptr, %s, sizeof(%s) * seqlength_%d);\n",
+                                               fld->name, getTypeStr(td), seqCount);
+                                        fprintf(fp,"\t\tptr += sizeof(%s) * seqlength_%d;\n\n",
+                                               getTypeStr(td), seqCount);
+                               }
+                               else if(td->type==STRING){
+                                       flag = 0;
+                                       fprintf(fp,"\t\t//copy string to buffer\n");
+                                       fprintf(fp,"\t\tif(strlength_%d > 0){\n",++strCount);
+                                       fprintf(fp,"\t\t\tmemcpy(ptr, %s, strlength_%d + 1);\n",
+                                                       fld->name, strCount);
+                                       fprintf(fp,"\t\t\tptr += strlength_%d + 1;\n",strCount);
+                                       fprintf(fp,"\t\t}else{\n");
+                                       fprintf(fp,"\t\t\t*ptr = '\\0';\n");
+                                       fprintf(fp,"\t\t\tptr += 1;\n");
+                                       fprintf(fp,"\t\t}\n\n");
+                               }else if(td->type==ARRAY){
+                                       flag = 0;
+                                       fprintf(fp,"\t//copy array to buffer\n");
+                                       fprintf(fp,"\tmemcpy(ptr, %s, sizeof(%s) * %d);\n",
+                                                       fld->name, getTypeStr(td), td->size);
+                                       fprintf(fp,"\tptr += sizeof(%s) * %d;\n\n", getTypeStr(td), td->size);
+                               }      
+                       }
     if(structCount + seqCount > 1) fprintf(fp,"\n");
 
+    fprintf(fp,"\n");
+    fprintf(fp, "\t\t/* Commit the work */\n");
+    fprintf(fp, "\t\trelay_commit(channel->rchan->buf[smp_processor_id()],\n"
+        "\t\t\t\tbuff, event_length);\n");
+
+   /* End of traces iteration */
+    fprintf(fp, "\t}\n\n");
+
+    fprintf(fp, "\n");
+    fprintf(fp, "unlock_traces:\n");
+    fprintf(fp, "\tread_unlock(&ltt_traces.traces_rwlock);\n");
+
+    fprintf(fp, "unlock:\n");
+               fprintf(fp, "\tltt_nesting[smp_processor_id()]--;\n");
+    fprintf(fp, "\t/* Re-enable interrupts */\n");
+    fprintf(fp, "\tlocal_irq_restore(_flags);\n");
+    fprintf(fp, "\tpreempt_enable();\n");
+    //fprintf(fp, "\tpreempt_check_resched();\n");
+    
     //call trace function
-    fprintf(fp,"\n\t//call trace function\n");
-    fprintf(fp,"\tltt_log_event(ltt_facility_%s_%X, %s, bufLength, buff);\n",facName,checksum,ev->name);
-    fprintf(fp,"};\n\n\n");
+    //fprintf(fp,"\n\t//call trace function\n");
+    //fprintf(fp,"\tltt_log_event(ltt_facility_%s_%X, %s, bufLength, buff);\n",facName,checksum,ev->name);
+    fprintf(fp,"}\n\n\n");
   }
 
 }
@@ -526,7 +705,7 @@ char * getTypeStr(type_descriptor * td){
     case FLOAT:
       return floatOutputTypes[td->size];
     case STRING:
-      return "char";
+      return "const char";
     case ENUM:
       return uintOutputTypes[td->size];
     case ARRAY:
@@ -534,9 +713,9 @@ char * getTypeStr(type_descriptor * td){
       t = td->nested_type;
       switch(t->type){
         case INT:
-         return intOutputTypes[t->size];
+          return intOutputTypes[t->size];
         case UINT:
-         return uintOutputTypes[t->size];
+          return uintOutputTypes[t->size];
         case POINTER:
           return "void *";
         case LONG:
@@ -550,14 +729,14 @@ char * getTypeStr(type_descriptor * td){
         case OFF_T:
           return "off_t";
         case FLOAT:
-               return floatOutputTypes[t->size];
+          return floatOutputTypes[t->size];
         case STRING:
-         return "char";
+          return "const char";
         case ENUM:
-         return uintOutputTypes[t->size];
+          return uintOutputTypes[t->size];
         default :
-         error_callback(NULL,"Nested struct is not supportted");
-         break;        
+          error_callback(NULL,"Nested struct is not supportted");
+          break;  
       }
       break;
     case STRUCT: //for now we do not support nested struct
@@ -579,16 +758,111 @@ char * getTypeStr(type_descriptor * td){
  *    nbEvent           : number of events in the facility
  *    checksum          : checksum for the facility
  ****************************************************************************/
-void generateLoaderfile(FILE * fp, char * facName, int nbEvent, unsigned long checksum){
-  //will be removed later
+void generateLoaderfile(FILE * fp, char * facName, int nbEvent, unsigned long checksum, char *capname){
+  fprintf(fp, "#ifndef _LTT_FACILITY_LOADER_%s_H_\n",capname);
+  fprintf(fp, "#define _LTT_FACILITY_LOADER_%s_H_\n\n",capname);
+  fprintf(fp,"#include <linux/ltt-facilities.h>\n", facName, checksum);
+  fprintf(fp,"ltt_facility_t\tltt_facility_%s;\n", facName, checksum);
   fprintf(fp,"ltt_facility_t\tltt_facility_%s_%X;\n\n", facName, checksum);
 
-  fprintf(fp,"EXPORT_SYMBOL(ltt_facility_%s_%X);\n\n",facName, checksum);
-  fprintf(fp,"#define LTT_FACILITY_SYMBOL\t\t\t\tltt_facility_%s_%X\n",
+  fprintf(fp,"#define LTT_FACILITY_SYMBOL\t\t\t\t\t\t\tltt_facility_%s\n",
+      facName);
+  fprintf(fp,"#define LTT_FACILITY_CHECKSUM_SYMBOL\t\tltt_facility_%s_%X\n",
       facName, checksum);
-  fprintf(fp,"#define LTT_FACILITY_CHECKSUM\t\t\t0x%X\n", checksum);
-  fprintf(fp,"#define LTT_FACILITY_NAME\t\t\t\t\t\"%s\"\n", facName);
-  fprintf(fp,"#define LTT_FACILITY_NUM_EVENTS\t\t%d\n\n", nbEvent);
+  fprintf(fp,"#define LTT_FACILITY_CHECKSUM\t\t\t\t\t\t0x%X\n", checksum);
+  fprintf(fp,"#define LTT_FACILITY_NAME\t\t\t\t\t\t\t\t\"%s\"\n", facName);
+  fprintf(fp,"#define LTT_FACILITY_NUM_EVENTS\t\t\t\t\t%d\n\n", nbEvent);
+  fprintf(fp, "#endif //_LTT_FACILITY_LOADER_%s_H_\n",capname);
+}
+
+void generateCfile(FILE * fp, char * filefacname){
+
+  fprintf(fp, "/*\n");
+  fprintf(fp, " * ltt-facility-loader-%s.c\n", filefacname);
+  fprintf(fp, " *\n");
+  fprintf(fp, " * (C) Copyright  2005 - \n");
+  fprintf(fp, " *          Mathieu Desnoyers (mathieu.desnoyers@polymtl.ca)\n");
+  fprintf(fp, " *\n");
+  fprintf(fp, " * Contains the LTT facility loader.\n");
+  fprintf(fp, " *\n");
+  fprintf(fp, " */\n");
+  fprintf(fp, "\n");
+  fprintf(fp, "\n");
+  fprintf(fp, "#include <linux/ltt-facilities.h>\n");
+  fprintf(fp, "#include <linux/module.h>\n");
+  fprintf(fp, "#include <linux/init.h>\n");
+  fprintf(fp, "#include <linux/config.h>\n");
+  fprintf(fp, "#include \"ltt-facility-loader-%s.h\"\n", filefacname);
+  fprintf(fp, "\n");
+  fprintf(fp, "\n");
+  fprintf(fp, "#ifdef CONFIG_LTT\n");
+  fprintf(fp, "\n");
+  fprintf(fp, "EXPORT_SYMBOL(LTT_FACILITY_SYMBOL);\n");
+  fprintf(fp, "EXPORT_SYMBOL(LTT_FACILITY_CHECKSUM_SYMBOL);\n");
+  fprintf(fp, "\n");
+  fprintf(fp, "static const char ltt_facility_name[] = LTT_FACILITY_NAME;\n");
+  fprintf(fp, "\n");
+  fprintf(fp, "#define SYMBOL_STRING(sym) #sym\n");
+  fprintf(fp, "\n");
+  fprintf(fp, "static struct ltt_facility facility = {\n");
+  fprintf(fp, "\t.name = ltt_facility_name,\n");
+  fprintf(fp, "\t.num_events = LTT_FACILITY_NUM_EVENTS,\n");
+  fprintf(fp, "\t.checksum = LTT_FACILITY_CHECKSUM,\n");
+  fprintf(fp, "\t.symbol = SYMBOL_STRING(LTT_FACILITY_SYMBOL)\n");
+  fprintf(fp, "};\n");
+  fprintf(fp, "\n");
+  fprintf(fp, "#ifndef MODULE\n");
+  fprintf(fp, "\n");
+  fprintf(fp, "/* Built-in facility. */\n");
+  fprintf(fp, "\n");
+  fprintf(fp, "static int __init facility_init(void)\n");
+  fprintf(fp, "{\n");
+  fprintf(fp, "\tprintk(KERN_INFO \"LTT : ltt-facility-%s init in kernel\\n\");\n", filefacname);
+  fprintf(fp, "\n");
+  fprintf(fp, "\tLTT_FACILITY_SYMBOL = ltt_facility_builtin_register(&facility);\n");
+  fprintf(fp, "\tLTT_FACILITY_CHECKSUM_SYMBOL = LTT_FACILITY_SYMBOL;\n");
+  fprintf(fp, "\t\n");
+  fprintf(fp, "\treturn LTT_FACILITY_SYMBOL;\n");
+  fprintf(fp, "}\n");
+  fprintf(fp, "__initcall(facility_init);\n");
+  fprintf(fp, "\n");
+  fprintf(fp, "\n");
+  fprintf(fp, "\n");
+  fprintf(fp, "#else \n");
+  fprintf(fp, "\n");
+  fprintf(fp, "/* Dynamic facility. */\n");
+  fprintf(fp, "\n");
+  fprintf(fp, "static int __init facility_init(void)\n");
+  fprintf(fp, "{\n");
+  fprintf(fp, "\tprintk(KERN_INFO \"LTT : ltt-facility-%s init dynamic\\n\");\n", filefacname);
+  fprintf(fp, "\n");
+  fprintf(fp, "\tLTT_FACILITY_SYMBOL = ltt_facility_dynamic_register(&facility);\n");
+  fprintf(fp, "\tLTT_FACILITY_SYMBOL_CHECKSUM = LTT_FACILITY_SYMBOL;\n");
+  fprintf(fp, "\n");
+  fprintf(fp, "\treturn LTT_FACILITY_SYMBOL;\n");
+  fprintf(fp, "}\n");
+  fprintf(fp, "\n");
+  fprintf(fp, "static void __exit facility_exit(void)\n");
+  fprintf(fp, "{\n");
+  fprintf(fp, "\tint err;\n");
+  fprintf(fp, "\n");
+  fprintf(fp, "\terr = ltt_facility_dynamic_unregister(LTT_FACILITY_SYMBOL);\n");
+  fprintf(fp, "\tif(err != 0)\n");
+  fprintf(fp, "\t\tprintk(KERN_ERR \"LTT : Error in unregistering facility.\\n\");\n");
+  fprintf(fp, "\n");
+  fprintf(fp, "}\n");
+  fprintf(fp, "\n");
+  fprintf(fp, "module_init(facility_init)\n");
+  fprintf(fp, "module_exit(facility_exit)\n");
+  fprintf(fp, "\n");
+  fprintf(fp, "\n");
+  fprintf(fp, "MODULE_LICENSE(\"GPL\");\n");
+  fprintf(fp, "MODULE_AUTHOR(\"Mathieu Desnoyers\");\n");
+  fprintf(fp, "MODULE_DESCRIPTION(\"Linux Trace Toolkit Facility\");\n");
+  fprintf(fp, "\n");
+  fprintf(fp, "#endif //MODULE\n");
+  fprintf(fp, "\n");
+  fprintf(fp, "#endif //CONFIG_LTT\n");
 }
 
 
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