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.
unsigned long long int getSize(parse_file_t *in)
{
char *token;
+ int has_quotes = 0;
+ unsigned long long int ret;
token = getToken(in);
+ if(token[0] == '"') {
+ has_quotes = 1;
+ token = getToken(in);
+ }
if(in->type == NUMBER) {
- return strtoull(token, NULL, 0);
- }
+ ret = strtoull(token, NULL, 0);
+ } else {
+ goto error;
+ }
+ if(has_quotes) {
+ token = getToken(in);
+ if(token[0] != '"') goto error;
+ }
+
+ return ret;
+error:
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 = 0;
- t->alignment = 0;
+ t->custom_write = 0;
+ t->network = 0;
while(1) {
token = getToken(in);
// if(car == EOF) in->error(in,"name was expected");
// else if(car == '\"') t->type_name = allocAndCopy(getQuotedString(in));
// else t->type_name = allocAndCopy(getName(in));
- } else if(!strcmp("size",token) || !strcmp("lengthsize", token)) {
+ } 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;
+ } else if(!strcmp("network", token)) {
+ t->network = 1;
+ }
}
}
ev->name = NULL;
ev->per_trace = 0;
ev->per_tracefile = 0;
+ ev->param_buffer = 0;
+ ev->no_instrument_function = 0;
while(1) {
token = getToken(in);
ev->per_trace = 1;
} else if(!strcmp("per_tracefile", token)) {
ev->per_tracefile = 1;
- }
+ } else if(!strcmp("param_buffer", token)) {
+ ev->param_buffer = 1;
+ } else if(!strcmp("no_instrument_function", token)) {
+ ev->no_instrument_function = 1;
+ }
}
}
char car;
fac->name = NULL;
+ fac->arch = NULL;
+ fac->user = 0;
while(1) {
token = getToken(in);
if(car == EOF) in->error(in,"name was expected");
else if(car == '\"') fac->name = allocAndCopy(getQuotedString(in));
else fac->name = allocAndCopy(getName(in));
- }
+ if(!strncmp(fac->name, "user_", sizeof("user_")-1))
+ fac->user = 1;
+ } else if(!strcmp("arch", token)) {
+ getEqual(in);
+ car = seekNextChar(in);
+ if(car == '\"') fac->name = allocAndCopy(getQuotedString(in));
+ else fac->arch = allocAndCopy(getName(in));
+ }
}
}
else if(car == '\"') f->name = allocAndCopy(getQuotedString(in));
else f->name = allocAndCopy(getName(in));
}
- }
+ }
}
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;
-
}
//for <label name=label_name value=n format="..."/>, value is an option
-char * getValueStrAttribute(parse_file_t *in)
+//Return value : 0 : no value, 1 : has a value
+int getValueAttribute(parse_file_t *in, long long *value)
{
char * token;
+ int has_quotes = 0;
token = getToken(in);
if(strcmp("/",token) == 0){
ungetToken(in);
- return NULL;
+ return 0;
}
if(strcmp("value",token))in->error(in,"value was expected");
getEqual(in);
token = getToken(in);
- if(in->type != NUMBER) in->error(in,"number was expected");
- return token;
+
+ if(token[0] == '"') {
+ has_quotes = 1;
+ token = getToken(in);
+ }
+ if(in->type == NUMBER) {
+ *value = strtoll(token, NULL, 0);
+ } else {
+ goto error;
+ }
+ if(has_quotes) {
+ token = getToken(in);
+ if(token[0] != '"') goto error;
+ }
+ return 1;
+
+error:
+ in->error(in,"incorrect size specification");
+ return 0;
}
char * getDescription(parse_file_t *in)
getFacilityAttributes(in, fac);
if(fac->name == NULL) in->error(in, "Attribute not named");
-
+
fac->capname = allocAndCopy(fac->name);
strupper(fac->capname);
getRAnglebracket(in);
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 >");
* 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;
-
- //<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);
+ 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);
+ } else {
+ f->description = NULL;
+ }
//<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>
+ }
}
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);
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);
}
else if(strcmp(token,"union") == 0) {
t->type = UNION;
- getTypeAttributes(in, t);
+ getTypeAttributes(in, t, unnamed_types, named_types);
getRAnglebracket(in); //<union>
getLAnglebracket(in); //<field name=..>
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);
}
else if(strcmp(token,"array") == 0) {
t->type = ARRAY;
- getTypeAttributes(in, t);
+ 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 == 0) in->error(in, "Sequence has empty lengthsize");
+ sequence_init(&(t->fields));
+ getTypeAttributes(in, t, unnamed_types, named_types);
getForwardslash(in);
- getRAnglebracket(in); //<sequence lengthsize=isize>
-
- getLAnglebracket(in); //<type struct>
- t->nested_type = parseType(in,NULL, unnamed_types, named_types);
+ 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;
+ long long 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);
+ 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));
- 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);
+ int *label_value = malloc(sizeof(int));
+ int has_value = 0;
+ long long loc_value;
+
+ str = allocAndCopy(getNameAttribute(in));
+ has_value = getValueAttribute(in, &loc_value);
+
+ sequence_push(&(t->labels),str);
+
+ if(has_value) value = loc_value;
+ else value++;
+
+ *label_value = value;
+ sequence_push(&(t->labels_values), label_value);
getForwardslash(in);
getRAnglebracket(in);
}
else if(strcmp(token,"int_fixed") == 0) {
t->type = INT_FIXED;
- getTypeAttributes(in, t);
+ 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);
+ 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;
- getTypeAttributes(in, t);
+ 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);
+ 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);
+ 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);
+ getTypeAttributes(in, t, unnamed_types, named_types);
+ t->size = 2;
getForwardslash(in);
getRAnglebracket(in);
}
else if(strcmp(token,"int") == 0) {
t->type = INT;
- getTypeAttributes(in, t);
+ getTypeAttributes(in, t, unnamed_types, named_types);
getForwardslash(in);
getRAnglebracket(in);
}
else if(strcmp(token,"uint") == 0) {
t->type = UINT;
- getTypeAttributes(in, t);
+ 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 != NAME) in->error(in,"Name token was expected");
+ // Optional descriptions
+ // if(in->type != NAME) in->error(in,"Name token was expected");
return token;
}
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;
}
****************************************************************************/
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);
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:
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++) {
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];
}
strcat(tmp,suffix);
return tmp;
}
-
-