X-Git-Url: http://git.lttng.org./?a=blobdiff_plain;f=genevent-new%2Fparser.c;h=84a0b5f4d273517f6912f22a5129b8b93541921b;hb=b0f04dc324c20f52f4673d23390b317939a64b9a;hp=17ebef72373e87de845e524021e659a0b8e6a21e;hpb=be97b9537557ac5ed4b010dbacb26be3452f6035;p=lttv.git

diff --git a/genevent-new/parser.c b/genevent-new/parser.c
index 17ebef72..84a0b5f4 100644
--- a/genevent-new/parser.c
+++ b/genevent-new/parser.c
@@ -3,14 +3,15 @@
 parser.c: Generate helper declarations and functions to trace events
   from an event description file.
 
-Copyright (C) 2002, Xianxiu Yang
-Copyright (C) 2002, Michel Dagenais 
-This program is free software; you can redistribute it and/or modify
+	    Copyright (C) 2005, Mathieu Desnoyers
+      Copyright (C) 2002, Xianxiu Yang
+      Copyright (C) 2002, Michel Dagenais 
+   This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-the Free Software Foundation; version 2 of the License.
+   the Free Software Foundation; version 2 of the License.
 
-This program is distributed in the hope that it will be useful,
-  but WITHOUT ANY WARRANTY; without even the implied warranty of
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.
 
@@ -181,7 +182,7 @@ void getTypeAttributes(parse_file_t *in, type_descriptor_t *t,
 
   t->fmt = NULL;
   t->size = 0;
-  t->alignment = 0;
+  t->custom_write = 0;
   
   while(1) {
     token = getToken(in); 
@@ -202,9 +203,8 @@ void getTypeAttributes(parse_file_t *in, type_descriptor_t *t,
     } else if(!strcmp("size",token)) {
       getEqual(in);
       t->size = getSize(in);
-    } else if(!strcmp("align",token)) {
-      getEqual(in);
-      t->alignment = getNumber(in);
+    } else if(!strcmp("custom_write", token)) {
+      t->custom_write = 1;
     }
   }
 }
@@ -270,6 +270,7 @@ void getFacilityAttributes(parse_file_t *in, facility_t *fac)
   char car;
   
   fac->name = NULL;
+  fac->arch = NULL;
 
   while(1) {
     token = getToken(in); 
@@ -284,7 +285,12 @@ void getFacilityAttributes(parse_file_t *in, facility_t *fac)
       if(car == EOF) in->error(in,"name was expected");
       else if(car == '\"') fac->name = allocAndCopy(getQuotedString(in));
       else fac->name = allocAndCopy(getName(in));
-    }
+    } else if(!strcmp("arch", token)) {
+      getEqual(in);
+      car = seekNextChar(in);
+      if(car == '\"') fac->name = allocAndCopy(getQuotedString(in));
+			else fac->arch = allocAndCopy(getName(in));
+		}
   }
 }
 
@@ -332,22 +338,20 @@ char *getNameAttribute(parse_file_t *in)
   
   while(1) {
     token = getToken(in); 
-    if(strcmp("/",token) == 0 || strcmp(">",token) == 0){
-      ungetToken(in);
-      break;
-    }
-
     if(!strcmp("name",token)) {
       getEqual(in);
       car = seekNextChar(in);
       if(car == EOF) in->error(in,"name was expected");
       else if(car == '\"') name = allocAndCopy(getQuotedString(in));
       else name = allocAndCopy(getName(in));
+    } else {
+      ungetToken(in);
+      break;
     }
+
   }
   if(name == NULL) in->error(in, "Name was expected");
   return name;
-  
 }
 
 
@@ -423,7 +427,7 @@ void parseFacility(parse_file_t *in, facility_t * fac)
   
   getFacilityAttributes(in, fac);
   if(fac->name == NULL) in->error(in, "Attribute not named");
-
+	
   fac->capname = allocAndCopy(fac->name);
 	strupper(fac->capname);
   getRAnglebracket(in);    
@@ -498,7 +502,7 @@ void parseEvent(parse_file_t *in, event_t * ev, sequence_t * unnamed_types,
 			if(strcmp("field",token))in->error(in,"expecting a field");
 			f = (field_t *)memAlloc(sizeof(field_t));
 			sequence_push(&(ev->fields),f);
-			parseFields(in, f, unnamed_types, named_types);
+			parseFields(in, f, unnamed_types, named_types, 1);
 			break;
 		default:
 			in->error(in, "expecting </event> or <field >");
@@ -535,30 +539,35 @@ void parseEvent(parse_file_t *in, event_t * ev, sequence_t * unnamed_types,
  *    f             : field
  *    unnamed_types : array of unamed types
  *    named_types   : array of named types
+ *    tag						: is field surrounded by a <field> </field> tag ?
  ****************************************************************************/
 
 void parseFields(parse_file_t *in, field_t *f,
     sequence_t * unnamed_types,
-		table_t * named_types) 
+		table_t * named_types,
+		int tag) 
 {
   char * token;
+	if(tag) {
+		//<field name=field_name> <description> <type> </field>
+		getFieldAttributes(in, f);
+		if(f->name == NULL) in->error(in, "Field not named");
+		getRAnglebracket(in);
 
-  //<field name=field_name> <description> <type> </field>
-  getFieldAttributes(in, f);
-  if(f->name == NULL) in->error(in, "Field not named");
-  getRAnglebracket(in);
-
-  f->description = getDescription(in);
+		f->description = getDescription(in);
+	}
 
   //<int size=...>
   getLAnglebracket(in);
   f->type = parseType(in,NULL, unnamed_types, named_types);
 
-  getLAnglebracket(in);
-  getForwardslash(in);
-  token = getName(in);
-  if(strcmp("field",token))in->error(in,"not a valid field definition");
-  getRAnglebracket(in); //</field>
+	if(tag) {
+		getLAnglebracket(in);
+		getForwardslash(in);
+		token = getName(in);
+		if(strcmp("field",token))in->error(in,"not a valid field definition");
+		getRAnglebracket(in); //</field>
+	}
 }
 
 
@@ -611,7 +620,7 @@ type_descriptor_t *parseType(parse_file_t *in, type_descriptor_t *inType,
 			f = (field_t *)memAlloc(sizeof(field_t));
 			sequence_push(&(t->fields),f);
 
-      parseFields(in, f, unnamed_types, named_types);
+      parseFields(in, f, unnamed_types, named_types, 1);
       
       //next field
       getLAnglebracket(in);
@@ -634,7 +643,7 @@ type_descriptor_t *parseType(parse_file_t *in, type_descriptor_t *inType,
     while(strcmp("field",token) == 0){
 			f = (field_t *)memAlloc(sizeof(field_t));
 			sequence_push(&(t->fields),f);
-      parseFields(in, f, unnamed_types, named_types);
+      parseFields(in, f, unnamed_types, named_types, 1);
       
       //next field
       getLAnglebracket(in);
@@ -648,13 +657,20 @@ type_descriptor_t *parseType(parse_file_t *in, type_descriptor_t *inType,
   }
   else if(strcmp(token,"array") == 0) {
     t->type = ARRAY;
+    sequence_init(&(t->fields));
     getTypeAttributes(in, t, unnamed_types, named_types);
     if(t->size == 0) in->error(in, "Array has empty size");
     getForwardslash(in);
     getRAnglebracket(in); //<array size=n>
 
-    getLAnglebracket(in); //<type struct> 
-    t->nested_type = parseType(in, NULL, unnamed_types, named_types);
+    //getLAnglebracket(in); //<subtype> 
+		/* subfield */
+		f = (field_t *)memAlloc(sizeof(field_t));
+		sequence_push(&(t->fields),f);
+    parseFields(in, f, unnamed_types, named_types, 0);
+
+    //getLAnglebracket(in); //<type struct> 
+    //t->nested_type = parseType(in, NULL, unnamed_types, named_types);
 
     getLAnglebracket(in); //</array>
     getForwardslash(in);
@@ -664,19 +680,33 @@ type_descriptor_t *parseType(parse_file_t *in, type_descriptor_t *inType,
   }
   else if(strcmp(token,"sequence") == 0) {
     t->type = SEQUENCE;
-    //getTypeAttributes(in, t, unnamed_types, named_types);
-    //getForwardslash(in);
+    sequence_init(&(t->fields));
+    getTypeAttributes(in, t, unnamed_types, named_types);
+    getForwardslash(in);
     getRAnglebracket(in); //<sequence>
 
-    getLAnglebracket(in); //<type sequence> 
-    t->length_type = parseType(in, NULL, unnamed_types, named_types);
+    //getLAnglebracket(in); //<sequence size type> 
+		/* subfield */
+		f = (field_t *)memAlloc(sizeof(field_t));
+		sequence_push(&(t->fields),f);
+    parseFields(in, f, unnamed_types, named_types, 0);
+
+    //getLAnglebracket(in); //<subtype> 
+		/* subfield */
+		f = (field_t *)memAlloc(sizeof(field_t));
+		sequence_push(&(t->fields),f);
+    parseFields(in, f, unnamed_types, named_types, 0);
 
-    getLAnglebracket(in); //<type sequence> 
+    //getLAnglebracket(in); //<type sequence> 
+    //t->length_type = parseType(in, NULL, unnamed_types, named_types);
 
-    t->nested_type = parseType(in, NULL, unnamed_types, named_types);
+    //getLAnglebracket(in); //<type sequence> 
 
-    if(t->length_type == NULL) in->error(in, "Sequence has no length type");
-		switch(t->length_type->type) {
+    //t->nested_type = parseType(in, NULL, unnamed_types, named_types);
+
+    if(t->fields.position < 1) in->error(in, "Sequence has no length type");
+    if(t->fields.position < 2) in->error(in, "Sequence has no subtype");
+		switch(((field_t*)t->fields.array[0])->type->type) {
 			case UINT_FIXED :
 			case UCHAR :
 			case USHORT :
@@ -689,8 +719,6 @@ type_descriptor_t *parseType(parse_file_t *in, type_descriptor_t *inType,
 				in->error(in, "Wrong length type for sequence");
 		}
 
-		
-    if(t->nested_type == NULL) in->error(in, "Sequence has no nested type");
     getLAnglebracket(in); //</sequence>
     getForwardslash(in);
     token = getName(in);
@@ -698,34 +726,38 @@ type_descriptor_t *parseType(parse_file_t *in, type_descriptor_t *inType,
     getRAnglebracket(in); //</sequence>
   }
   else if(strcmp(token,"enum") == 0) {
-    char * str, *str1;
+    char * str;
+    int value = -1;
+
     t->type = ENUM;
     sequence_init(&(t->labels));
+    sequence_init(&(t->labels_values));
     sequence_init(&(t->labels_description));
 		t->already_printed = 0;
     getTypeAttributes(in, t, unnamed_types, named_types);
     //if(t->size == 0) in->error(in, "Sequence has empty size");
-		//Mathieu : we fix enum size to 4 bytes. GCC is always like this.
+		//Mathieu : we fix enum size to target int size. GCC is always like this.
 		//fox copy optimisation.
-    if(t->size != 0) in->error(in, "Enum has fixed size of 4.");
-		t->size = 4;
+    if(t->size != 0) in->error(in, "Enum has fixed size of target int.");
+		t->size = 0;
     getRAnglebracket(in);
 
     //<label name=label1 value=n/>
     getLAnglebracket(in);
     token = getToken(in); //"label" or "/"
     while(strcmp("label",token) == 0){
-      str   = allocAndCopy(getNameAttribute(in));      
+      int *label_value = malloc(sizeof(int));
+      
+      str   = allocAndCopy(getNameAttribute(in));
       token = getValueStrAttribute(in);
-      if(token){
-      	str1 = appendString(str,"=");
-      	free(str);
-      	str = appendString(str1,token);
-      	free(str1);
-      	sequence_push(&(t->labels),str);
-      }
-      else
-      	sequence_push(&(t->labels),str);
+      
+     	sequence_push(&(t->labels),str);
+
+      if(token) value = strtol(token, NULL, 0);
+      else value++;
+
+      *label_value = value;
+      sequence_push(&(t->labels_values), label_value);
 
       getForwardslash(in);
       getRAnglebracket(in);
@@ -760,24 +792,28 @@ type_descriptor_t *parseType(parse_file_t *in, type_descriptor_t *inType,
   else if(strcmp(token,"char") == 0) {
     t->type = CHAR;
     getTypeAttributes(in, t, unnamed_types, named_types);
+		t->size = 1;
     getForwardslash(in);
     getRAnglebracket(in); 
   }
   else if(strcmp(token,"uchar") == 0) {
     t->type = UCHAR;
     getTypeAttributes(in, t, unnamed_types, named_types);
+		t->size = 1;
     getForwardslash(in);
     getRAnglebracket(in); 
   }
   else if(strcmp(token,"short") == 0) {
     t->type = SHORT;
     getTypeAttributes(in, t, unnamed_types, named_types);
+		t->size = 2;
     getForwardslash(in);
     getRAnglebracket(in); 
   }
   else if(strcmp(token,"ushort") == 0) {
     t->type = USHORT;
     getTypeAttributes(in, t, unnamed_types, named_types);
+		t->size = 2;
     getForwardslash(in);
     getRAnglebracket(in); 
   }
@@ -844,17 +880,14 @@ type_descriptor_t *parseType(parse_file_t *in, type_descriptor_t *inType,
   }
   else if(strcmp(token,"typeref") == 0){
     // Must be a named type
-    if(inType != NULL) 
-      in->error(in,"Named type cannot refer to a named type");
-    else {
-      free(t);
-      sequence_pop(unnamed_types);
-      token = getNameAttribute(in);
-      t = find_named_type(token, named_types);
-      getForwardslash(in);  //<typeref name=type_name/>
-      getRAnglebracket(in);
-      return t;
-    }
+		free(t);
+		sequence_pop(unnamed_types);
+		token = getNameAttribute(in);
+		t = find_named_type(token, named_types);
+		if(t == NULL) in->error(in,"Named referred to must be pre-declared.");
+		getForwardslash(in);  //<typeref name=type_name/>
+		getRAnglebracket(in);
+		return t;
   }else in->error(in,"not a valid type");
 
   return t;
@@ -875,16 +908,22 @@ type_descriptor_t * find_named_type(char *name, table_t * named_types)
   type_descriptor_t *t;
 
   t = table_find(named_types,name);
-  if(t == NULL) {
-    t = (type_descriptor_t *)memAlloc(sizeof(type_descriptor_t));
-    t->type_name = allocAndCopy(name);
-    t->type = NONE;
-    t->fmt = NULL;
-    table_insert(named_types,t->type_name,t);
-    //    table_insert(named_types,allocAndCopy(name),t);
-  }
+
   return t;
-}  
+}
+
+type_descriptor_t * create_named_type(char *name, table_t * named_types)
+{
+  type_descriptor_t *t;
+
+	t = (type_descriptor_t *)memAlloc(sizeof(type_descriptor_t));
+	t->type_name = allocAndCopy(name);
+	t->type = NONE;
+	t->fmt = NULL;
+	table_insert(named_types,t->type_name,t);
+	//    table_insert(named_types,allocAndCopy(name),t);
+	return t;
+}
 
 /*****************************************************************************
  *Function name
@@ -903,7 +942,7 @@ void parseTypeDefinition(parse_file_t * in, sequence_t * unnamed_types,
 
   token = getNameAttribute(in);
   if(token == NULL) in->error(in, "Type has empty name");
-  t = find_named_type(token, named_types);
+  t = create_named_type(token, named_types);
 
   if(t->type != NONE) in->error(in,"redefinition of named type");
   getRAnglebracket(in); //<type name=type_name>
@@ -940,7 +979,8 @@ char *getName(parse_file_t * in)
   char *token;
 
   token = getToken(in);
-  if(in->type != NAME) in->error(in,"Name token was expected");
+  // Optional descriptions
+	// if(in->type != NAME) in->error(in,"Name token was expected");
   return token;
 }
 
@@ -1122,11 +1162,11 @@ char *getToken(parse_file_t * in)
         if(pos == BUFFER_SIZE) in->error(in, "number token too large");
         in->type = NUMBER;
       }    
-      else if(isalpha(car)) {
+      else if(isalnum(car) || car == '_' || car == '-') {
         in->buffer[0] = car;
         pos = 1;
         while((car = getc(fp)) != EOF && pos < BUFFER_SIZE) {
-          if(!(isalnum(car) || car == '_')) {
+          if(!(isalnum(car) || car == '_' || car == '-')) {
             ungetc(car,fp);
             break;
           }
@@ -1202,17 +1242,18 @@ void checkNamedTypesImplemented(table_t * named_types)
  ****************************************************************************/
 
 void generateChecksum(char* facName,
-    unsigned long * checksum, sequence_t * events)
+    unsigned int * checksum, sequence_t * events)
 {
   unsigned long crc ;
   int pos;
   event_t * ev;
+  unsigned int i;
 
   crc = crc32(facName);
   for(pos = 0; pos < events->position; pos++){
     ev = (event_t *)(events->array[pos]);
     crc = partial_crc32(ev->name, crc);
-		for(unsigned int i = 0; i < ev->fields.position; i++) {
+		for(i = 0; i < ev->fields.position; i++) {
 			field_t *f = (field_t*)ev->fields.array[i];
       crc = partial_crc32(f->name, crc);
       crc = getTypeChecksum(crc, f->type);
@@ -1306,13 +1347,12 @@ unsigned long getTypeChecksum(unsigned long aCrc, type_descriptor_t * type)
       flag = 1;
       break;
     case ARRAY:
-      sprintf(buf,"%llu", type->size);
+      sprintf(buf,"%zu", type->size);
       str = appendString("array ",buf);
       flag = 1;
       break;
     case SEQUENCE:
-      sprintf(buf,"%llu", type->size);
-      str = appendString("sequence ",buf);
+      str = allocAndCopy("sequence ");
       flag = 1;
       break;
     case STRUCT:
@@ -1333,9 +1373,12 @@ unsigned long getTypeChecksum(unsigned long aCrc, type_descriptor_t * type)
 
   if(type->fmt) crc = partial_crc32(type->fmt,crc);
     
-  if(type->type == ARRAY || type->type == SEQUENCE){
-    crc = getTypeChecksum(crc,type->nested_type);
-  }else if(type->type == STRUCT || type->type == UNION){
+  if(type->type == ARRAY){
+    crc = getTypeChecksum(crc,((field_t*)type->fields.array[0])->type);
+  } else if(type->type ==SEQUENCE) {
+    crc = getTypeChecksum(crc,((field_t*)type->fields.array[0])->type);
+    crc = getTypeChecksum(crc,((field_t*)type->fields.array[1])->type);
+	} else if(type->type == STRUCT || type->type == UNION){
     for(pos =0; pos < type->fields.position; pos++){
       fld = (field_t *) type->fields.array[pos];
       crc = partial_crc32(fld->name,crc);
@@ -1362,6 +1405,10 @@ void freeType(type_descriptor_t * tp)
       free(tp->labels.array[pos2]);
     }
     sequence_dispose(&(tp->labels));
+    for(pos2 = 0; pos2 < tp->labels_values.position; pos2++) {
+      free(tp->labels_values.array[pos2]);
+    }
+    sequence_dispose(&(tp->labels_values));
   }
   if(tp->type == STRUCT) {
     for(pos2 = 0; pos2 < tp->fields.position; pos2++) {
@@ -1448,7 +1495,8 @@ void sequence_push(sequence_t *t, void *elem)
 
 void *sequence_pop(sequence_t *t) 
 {
-  return t->array[t->position--];
+	if(t->position == 0) printf("Error : trying to pop an empty sequence");
+  return t->array[--t->position];
 }
 
 
@@ -1511,5 +1559,3 @@ char *appendString(char *s, char *suffix)
   strcat(tmp,suffix);  
   return tmp;
 }
-
-