#include <stdio.h>
#include <stdarg.h>
#include <linux/errno.h>
-
+#include <assert.h>
#include "parser.h"
#include "genevent.h"
-
/* Named types may be referenced from anywhere */
facility * fac;
* name : name of event definition file
****************************************************************************/
void generateFile(char *name){
- char *cName, *hName, *tmp;
- FILE * cFp, *hFp;
+ char *loadName, *hName, *tmp, *tmp2;
+ FILE * lFp, *hFp;
int nbEvent;
unsigned long checksum=0;
}else{
tmp = name;
}
-
- cName = appendString(tmp,".c");
- hName = appendString(tmp,".h");
- cFp = fopen(cName,"w");
- if(!cFp){
- printf("Cannot open the file : %s\n",cName);
+
+ loadName = appendString("ltt-facility-loader-", tmp);
+ tmp2 = appendString(loadName,".h");
+ free(loadName);
+ loadName = tmp2;
+ hName = appendString("ltt-facility-", tmp);
+ tmp2 = appendString(hName,".h");
+ free(hName);
+ hName = tmp2;
+ lFp = fopen(loadName,"w");
+ if(!lFp){
+ printf("Cannot open the file : %s\n",loadName);
exit(1);
}
exit(1);
}
- free(cName);
+ free(loadName);
free(hName);
generateChecksum(fac->name, &checksum, &(fac->events));
generateStructFunc(hFp, fac->name,checksum);
fprintf(hFp, "#endif //_LTT_FACILITY_%s_H_\n",fac->capname);
- /* generate .c file, calls to register the facility at init time */
- generateCfile(cFp,fac->name,nbEvent,checksum);
+ /* generate .h file, calls to register the facility at init time */
+ generateLoaderfile(lFp,fac->name,nbEvent,checksum,fac->capname);
fclose(hFp);
- fclose(cFp);
+ fclose(lFp);
}
fprintf(fp,"#include <linux/ltt-log.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 trace_facility_t ltt_facility_%s_%X;\n",facName, checksum);
+ fprintf(fp,"extern trace_facility_t ltt_facility_%s;\n\n\n",facName, checksum);
fprintf(fp,"/**** event type ****/\n\n");
fprintf(fp,"enum %s_event {\n",facName);
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");
+ 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;
}
/*****************************************************************************
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);
+ 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,"\tltt_log_event(ltt_facility_%s_%X, %s, 0, NULL);\n",
+ facName,checksum,ev->name);
fprintf(fp,"};\n\n\n");
continue;
}
//if fields contain enum, print out enum definition
+ //MD : fixed in generateEnumDefinition to do not print the same enum
+ //twice.
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);
fld = (field *)ev->type->fields.array[pos1];
td = fld->type;
if(td->type == ARRAY ){
- fprintf(fp,"%s * %s",getTypeStr(td), fld->name);
+ 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);
+ 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,"%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");
+ fprintf(fp,")\n{\n");
//length of buffer : length of all structures
- fprintf(fp,"\tint bufLength = ");
+ fprintf(fp,"\tint length = ");
for(pos1=0;pos1<structCount;pos1++){
fprintf(fp,"sizeof(struct %s_%s_%d)",ev->name, facName,pos1+1);
if(pos1 != structCount-1) fprintf(fp," + ");
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(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, "\tstruct %s_%s_1* __1;\n\n", ev->name, facName);
+
+ fprintf(fp, "\tread_lock(<t_traces.traces_rwlock);\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\t%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");
-
- //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/* Disable interrupts. */\n");
+ fprintf(fp, "\tlocal_irq_save(flags);\n\n");
+
+ /* For each trace */
+ fprintf(fp, "\tlist_for_each_entry(trace, <t_traces.head, list) {\n");
+ fprintf(fp, "\t\tif(!trace->active) goto skip_trace;\n\n");
+
+ fprintf(fp, "\t\tunsigned int header_length = "
+ "ltt_get_event_header_size(trace);\n");
+ fprintf(fp, "\t\tunsigned int event_length = header_length + length;\n");
+
+ /* Reserve the channel */
+ fprintf(fp, "\t\tchannel = ltt_get_channel_from_index(trace, index);\n");
+ fprintf(fp,
+ "\t\tvoid *buff = relay_reserve(channel->rchan, event_length);\n");
+ fprintf(fp, "\t\tif(buff == NULL) {\n");
+ fprintf(fp, "\t\t\t/* Buffer is full*/\n");
+ fprintf(fp, "\t\t\tchannel->events_lost++;\n");
+ fprintf(fp, "\t\t\tgoto commit_work;\n");
+ fprintf(fp, "\t\t}\n");
+
+ /* Write the header */
+ fprintf(fp, "\n");
+ fprintf(fp, "\t\tltt_write_event_header(channel, buff, \n"
+ "\t\t\t\tltt_facility_%s_%X, %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.
+ 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;
+ if(structCount) fprintf(fp,"\t\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(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");
-
+ // 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(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);
+ // }
//copy struct, sequence and string to buffer
seqCount = 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");
+// 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);
+ 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,"commit_work:\n");
+ fprintf(fp,"\n");
+ fprintf(fp, "\t\t/* Commit the work */\n");
+ fprintf(fp, "\t\trelay_commit(channel->rchan, buff, event_length);\n");
+
+ /* End of traces iteration */
+ fprintf(fp, "skip_trace:\n\n");
+ fprintf(fp, "\t}\n\n");
+
+ fprintf(fp, "\t/* Re-enable interrupts */\n");
+ fprintf(fp, "\tlocal_irq_restore(flags);\n");
+ fprintf(fp, "\tpreempt_check_resched();\n");
+
+ fprintf(fp, "\n");
+ fprintf(fp, "unlock_traces:\n");
+ fprintf(fp, "\tread_unlock(<t_traces.traces_rwlock);\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\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");
}
/*****************************************************************************
*Function name
- * generateCfile : generate a .c file
+ * generateLoaderfile: generate a facility loaded .h file
*Input Params
* fp : file to be written to
* facName : name of facility
* nbEvent : number of events in the facility
* checksum : checksum for the facility
****************************************************************************/
-void generateCfile(FILE * fp, char * facName, int nbEvent, unsigned long checksum){
- //will be removed later
- fprintf(fp,"typedef unsigned int trace_facility_t;\n\n");
-
- fprintf(fp,"static unsigned long checksum = %lu;\n\n",checksum);
- fprintf(fp,"/* facility handle */\n");
- fprintf(fp,"trace_facility_t facility_%s;\n\n",facName);
-
- fprintf(fp,"static void __init facility_%s_init(){\n",facName);
- fprintf(fp,"\tfacility_%s = trace_register_facility_by_checksum(\"%s\", checksum,%d);\n",facName,facName,nbEvent);
- fprintf(fp,"}\n\n");
-
- fprintf(fp,"static void __exit facility_%s_exit(){\n",facName);
- fprintf(fp,"}\n\n");
-
- fprintf(fp,"module_init(facility_%s_init);\n",facName);
- fprintf(fp,"module_exit(facility_%s_exit);\n",facName);
+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,"#include <linux/module.h>\n\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);\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\n",
+ facName);
+ fprintf(fp,"#define LTT_FACILITY_CHECKSUM_SYMBOL\t\t\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, "#endif //_LTT_FACILITY_LOADER_%s_H_\n",capname);
}
projects / lttv.git / blobdiff