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.
#include "parser.h"
-static char *intOutputTypes[] = {
- "int8_t", "int16_t", "int32_t", "int64_t", "short int", "int", "long int" };
+char *intOutputTypes[] = {
+ "int8_t", "int16_t", "int32_t", "int64_t" };
-static char *uintOutputTypes[] = {
- "uint8_t", "uint16_t", "uint32_t", "uint64_t", "unsigned short int",
- "unsigned int", "unsigned long int" };
+char *uintOutputTypes[] = {
+ "uint8_t", "uint16_t", "uint32_t", "uint64_t" };
-static char *floatOutputTypes[] = {
- "undef", "undef", "float", "double", "undef", "float", "double" };
+char *floatOutputTypes[] = {
+ "undef", "undef", "float", "double" };
}
-int getSizeindex(int value)
+int getSizeindex(unsigned int value)
{
switch(value) {
case 1:
* size
*****************************************************************************/
-int getSize(parse_file_t *in)
+unsigned long long int getSize(parse_file_t *in)
{
char *token;
token = getToken(in);
if(in->type == NUMBER) {
- if(strcmp(token,"1") == 0) return 0;
- else if(strcmp(token,"2") == 0) return 1;
- else if(strcmp(token,"4") == 0) return 2;
- else if(strcmp(token,"8") == 0) return 3;
- }
- else if(in->type == NAME) {
- if(strcmp(token,"short") == 0) return 4;
- else if(strcmp(token,"medium") == 0) return 5;
- else if(strcmp(token,"long") == 0) return 6;
+ return strtoull(token, NULL, 0);
}
in->error(in,"incorrect size specification");
return -1;
*
**************************************************************************/
-void getTypeAttributes(parse_file_t *in, type_descriptor_t *t)
+void getTypeAttributes(parse_file_t *in, type_descriptor_t *t,
+ sequence_t * unnamed_types, table_t * named_types)
{
char * token;
t->fmt = NULL;
- t->size = -1;
- t->alignment = 0;
+ t->size = 0;
while(1) {
token = getToken(in);
} else if(!strcmp("size",token)) {
getEqual(in);
t->size = getSize(in);
- } else if(!strcmp("align",token)) {
- getEqual(in);
- t->alignment = getNumber(in);
}
}
}
table_t * named_types)
{
char *token;
+ field_t *f;
+ sequence_init(&(ev->fields));
//<event name=eventtype_name>
getEventAttributes(in, ev);
if(ev->name == NULL) in->error(in, "Event not named");
getRAnglebracket(in);
- //<description>...</descriptio>
+ //<description>...</description>
ev->description = getDescription(in);
- //event can have STRUCT, TYPEREF or NOTHING
- getLAnglebracket(in);
-
- token = getToken(in);
- if(in->type == FORWARDSLASH){ //</event> NOTHING
- ev->type = NULL;
- }else if(in->type == NAME){
- if(strcmp("struct",token)==0 || strcmp("typeref",token)==0){
- ungetToken(in);
- ev->type = parseType(in,NULL, unnamed_types, named_types);
- if(ev->type->type != STRUCT && ev->type->type != NONE)
- in->error(in,"type must be a struct");
- }else in->error(in, "not a valid type");
-
- getLAnglebracket(in);
- getForwardslash(in);
- }else in->error(in,"not a struct type");
-
- token = getName(in);
- if(strcmp("event",token))in->error(in,"not an event definition");
- getRAnglebracket(in); //</event>
+ int got_end = 0;
+ /* Events can have multiple fields. each field form at least a function
+ * parameter of the logging function. */
+ while(!got_end) {
+ getLAnglebracket(in);
+ token = getToken(in);
+
+ switch(in->type) {
+ case FORWARDSLASH: /* </event> */
+ token = getName(in);
+ if(strcmp("event",token))in->error(in,"not an event definition");
+ getRAnglebracket(in); //</event>
+ got_end = 1;
+ break;
+ case NAME: /* a field */
+ 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, 1);
+ break;
+ default:
+ in->error(in, "expecting </event> or <field >");
+ break;
+ }
+ }
+#if 0
+ if(in->type == FORWARDSLASH){ //</event> NOTHING
+ ev->type = NULL;
+ }else if(in->type == NAME){
+ if(strcmp("struct",token)==0 || strcmp("typeref",token)==0){
+ ungetToken(in);
+ ev->type = parseType(in,NULL, unnamed_types, named_types);
+ if(ev->type->type != STRUCT && ev->type->type != NONE)
+ in->error(in,"type must be a struct");
+ }else in->error(in, "not a valid type");
+
+ getLAnglebracket(in);
+ getForwardslash(in);
+ }else in->error(in,"not a struct type");
+ getLAnglebracket(in);
+ getForwardslash(in);
+ token = getName(in);
+ if(strcmp("event",token))in->error(in,"not an event definition");
+ getRAnglebracket(in); //</event>
+#endif //0
}
/*****************************************************************************
* parseField : get field infomation from buffer
*Input params
* in : input file handle
- * t : type descriptor
+ * 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, type_descriptor_t *t,
+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;
- field_t *f;
-
- f = (field_t *)memAlloc(sizeof(field_t));
- sequence_push(&(t->fields),f);
-
- //<field name=field_name> <description> <type> </field>
- getFieldAttributes(in, f);
- if(f->name == NULL) in->error(in, "Field not named");
- getRAnglebracket(in);
+ if(tag) {
+ //<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>
+ }
}
{
char *token;
type_descriptor_t *t;
+ field_t *f;
if(inType == NULL) {
t = (type_descriptor_t *) memAlloc(sizeof(type_descriptor_t));
if(strcmp(token,"struct") == 0) {
t->type = STRUCT;
- getTypeAttributes(in, t);
+ getTypeAttributes(in, t, unnamed_types, named_types);
getRAnglebracket(in); //<struct>
getLAnglebracket(in); //<field name=..>
token = getToken(in);
sequence_init(&(t->fields));
while(strcmp("field",token) == 0){
- parseFields(in,t, unnamed_types, named_types);
+ f = (field_t *)memAlloc(sizeof(field_t));
+ sequence_push(&(t->fields),f);
+
+ parseFields(in, f, unnamed_types, named_types, 1);
//next field
getLAnglebracket(in);
}
else if(strcmp(token,"union") == 0) {
t->type = UNION;
- getTypeAttributes(in, t);
- if(t->size == -1) in->error(in, "Union has empty size");
- getRAnglebracket(in); //<union typecodesize=isize>
+ getTypeAttributes(in, t, unnamed_types, named_types);
+ getRAnglebracket(in); //<union>
getLAnglebracket(in); //<field name=..>
token = getToken(in);
sequence_init(&(t->fields));
while(strcmp("field",token) == 0){
- parseFields(in,t, unnamed_types, named_types);
+ f = (field_t *)memAlloc(sizeof(field_t));
+ sequence_push(&(t->fields),f);
+ parseFields(in, f, unnamed_types, named_types, 1);
//next field
getLAnglebracket(in);
}
else if(strcmp(token,"array") == 0) {
t->type = ARRAY;
- getTypeAttributes(in, t);
- if(t->size == -1) in->error(in, "Array has empty size");
+ 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);
}
else if(strcmp(token,"sequence") == 0) {
t->type = SEQUENCE;
- getTypeAttributes(in, t);
- if(t->size == -1) in->error(in, "Sequence has empty size");
- getRAnglebracket(in); //<array lengthsize=isize>
-
- getLAnglebracket(in); //<type struct>
- t->nested_type = parseType(in,NULL, unnamed_types, named_types);
+ sequence_init(&(t->fields));
+ //getTypeAttributes(in, t, unnamed_types, named_types);
+ //getForwardslash(in);
+ getRAnglebracket(in); //<sequence>
+
+ //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>
+ //t->length_type = parseType(in, NULL, unnamed_types, named_types);
+
+ //getLAnglebracket(in); //<type sequence>
+
+ //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 :
+ case UINT :
+ case ULONG :
+ case SIZE_T :
+ case OFF_T :
+ break;
+ default:
+ in->error(in, "Wrong length type for sequence");
+ }
getLAnglebracket(in); //</sequence>
getForwardslash(in);
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);
- if(t->size == -1) in->error(in, "Sequence has empty size");
+ getTypeAttributes(in, t, unnamed_types, named_types);
+ //if(t->size == 0) in->error(in, "Sequence has empty size");
+ //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 target int.");
+ t->size = 0;
getRAnglebracket(in);
//<label name=label1 value=n/>
getLAnglebracket(in);
token = getToken(in); //"label" or "/"
while(strcmp("label",token) == 0){
+ 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);
if(strcmp("enum",token))in->error(in, "not a valid enum definition");
getRAnglebracket(in); //</label>
}
+ else if(strcmp(token,"int_fixed") == 0) {
+ t->type = INT_FIXED;
+ getTypeAttributes(in, t, unnamed_types, named_types);
+ if(t->size == 0) in->error(in, "int has empty size");
+ getForwardslash(in);
+ getRAnglebracket(in);
+ }
+ else if(strcmp(token,"uint_fixed") == 0) {
+ t->type = UINT_FIXED;
+ getTypeAttributes(in, t, unnamed_types, named_types);
+ if(t->size == 0) in->error(in, "uint has empty size");
+ getForwardslash(in);
+ getRAnglebracket(in);
+ }
+ else if(strcmp(token,"char") == 0) {
+ t->type = CHAR;
+ t->size = 1;
+ getTypeAttributes(in, t, unnamed_types, named_types);
+ getForwardslash(in);
+ getRAnglebracket(in);
+ }
+ else if(strcmp(token,"uchar") == 0) {
+ t->type = UCHAR;
+ t->size = 1;
+ getTypeAttributes(in, t, unnamed_types, named_types);
+ getForwardslash(in);
+ getRAnglebracket(in);
+ }
+ else if(strcmp(token,"short") == 0) {
+ t->type = SHORT;
+ t->size = 2;
+ getTypeAttributes(in, t, unnamed_types, named_types);
+ getForwardslash(in);
+ getRAnglebracket(in);
+ }
+ else if(strcmp(token,"ushort") == 0) {
+ t->type = USHORT;
+ t->size = 2;
+ getTypeAttributes(in, t, unnamed_types, named_types);
+ getForwardslash(in);
+ getRAnglebracket(in);
+ }
else if(strcmp(token,"int") == 0) {
t->type = INT;
- getTypeAttributes(in, t);
- if(t->size == -1) in->error(in, "int has empty size");
+ getTypeAttributes(in, t, unnamed_types, named_types);
getForwardslash(in);
getRAnglebracket(in);
}
else if(strcmp(token,"uint") == 0) {
t->type = UINT;
- getTypeAttributes(in, t);
- if(t->size == -1) in->error(in, "uint has empty size");
+ getTypeAttributes(in, t, unnamed_types, named_types);
getForwardslash(in);
getRAnglebracket(in);
}
+
else if(strcmp(token,"pointer") == 0) {
t->type = POINTER;
- getTypeAttributes(in, t);
+ getTypeAttributes(in, t, unnamed_types, named_types);
getForwardslash(in);
getRAnglebracket(in);
}
else if(strcmp(token,"long") == 0) {
t->type = LONG;
- getTypeAttributes(in, t);
+ getTypeAttributes(in, t, unnamed_types, named_types);
getForwardslash(in);
getRAnglebracket(in);
}
else if(strcmp(token,"ulong") == 0) {
t->type = ULONG;
- getTypeAttributes(in, t);
+ getTypeAttributes(in, t, unnamed_types, named_types);
getForwardslash(in);
getRAnglebracket(in);
}
else if(strcmp(token,"size_t") == 0) {
t->type = SIZE_T;
- getTypeAttributes(in, t);
+ getTypeAttributes(in, t, unnamed_types, named_types);
getForwardslash(in);
getRAnglebracket(in);
}
else if(strcmp(token,"ssize_t") == 0) {
t->type = SSIZE_T;
- getTypeAttributes(in, t);
+ getTypeAttributes(in, t, unnamed_types, named_types);
getForwardslash(in);
getRAnglebracket(in);
}
else if(strcmp(token,"off_t") == 0) {
t->type = OFF_T;
- getTypeAttributes(in, t);
+ getTypeAttributes(in, t, unnamed_types, named_types);
getForwardslash(in);
getRAnglebracket(in);
}
else if(strcmp(token,"float") == 0) {
t->type = FLOAT;
- getTypeAttributes(in, t);
+ getTypeAttributes(in, t, unnamed_types, named_types);
getForwardslash(in);
getRAnglebracket(in);
}
else if(strcmp(token,"string") == 0) {
t->type = STRING;
- getTypeAttributes(in, t);
+ getTypeAttributes(in, t, unnamed_types, named_types);
getForwardslash(in);
getRAnglebracket(in);
}
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;
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
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>
char *token;
token = getToken(in);
- if(in->type != FORWARDSLASH) in->error(in, "forward slash token was expected");
+ //if(in->type != FORWARDSLASH) in->error(in, "forward slash token was expected");
+ /* Mathieu : final / is optional now. */
+ if(in->type != FORWARDSLASH) ungetToken(in);
+
return token;
}
****************************************************************************/
void generateChecksum(char* facName,
- unsigned long * checksum, sequence_t * events)
+ unsigned int * checksum, sequence_t * events)
{
unsigned long crc ;
int pos;
event_t * ev;
- char str[256];
crc = crc32(facName);
for(pos = 0; pos < events->position; pos++){
ev = (event_t *)(events->array[pos]);
- crc = partial_crc32(ev->name,crc);
- if(!ev->type) continue; //event without type
- if(ev->type->type != STRUCT){
- sprintf(str,"event '%s' has a type other than STRUCT",ev->name);
- error_callback(NULL, str);
- }
- crc = getTypeChecksum(crc, ev->type);
+ crc = partial_crc32(ev->name, crc);
+ for(unsigned int 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);
+ }
}
*checksum = crc;
}
field_t * fld;
switch(type->type){
- case INT:
- str = intOutputTypes[type->size];
+ case INT_FIXED:
+ str = intOutputTypes[getSizeindex(type->size)];
break;
- case UINT:
- str = uintOutputTypes[type->size];
+ case UINT_FIXED:
+ str = uintOutputTypes[getSizeindex(type->size)];
break;
case POINTER:
str = allocAndCopy("void *");
flag = 1;
break;
+ case CHAR:
+ str = allocAndCopy("signed char");
+ flag = 1;
+ break;
+ case UCHAR:
+ str = allocAndCopy("unsigned char");
+ flag = 1;
+ break;
+ case SHORT:
+ str = allocAndCopy("short");
+ flag = 1;
+ break;
+ case USHORT:
+ str = allocAndCopy("unsigned short");
+ flag = 1;
+ break;
+ case INT:
+ str = allocAndCopy("int");
+ flag = 1;
+ break;
+ case UINT:
+ str = allocAndCopy("uint");
+ flag = 1;
+ break;
case LONG:
str = allocAndCopy("long");
flag = 1;
flag = 1;
break;
case FLOAT:
- str = floatOutputTypes[type->size];
+ str = floatOutputTypes[getSizeindex(type->size)];
break;
case STRING:
str = allocAndCopy("string");
flag = 1;
break;
case ENUM:
- str = appendString("enum ", uintOutputTypes[type->size]);
+ //str = appendString("enum ", uintOutputTypes[getSizeindex(type->size)]);
+ str = allocAndCopy("enum");
flag = 1;
break;
case ARRAY:
- sprintf(buf,"%d",type->size);
+ sprintf(buf,"%zu", type->size);
str = appendString("array ",buf);
flag = 1;
break;
case SEQUENCE:
- sprintf(buf,"%d",type->size);
+ sprintf(buf,"%zu", type->size);
str = appendString("sequence ",buf);
flag = 1;
break;
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);
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++) {
ev = (event_t *) t->array[pos];
free(ev->name);
free(ev->description);
+ sequence_dispose(&ev->fields);
free(ev);
}
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