X-Git-Url: https://git.lttng.org/?a=blobdiff_plain;f=genevent-new%2Fgenevent.c;h=7408b7e519beaba19c2d155bd1223cba6e81ac62;hb=403a4bcd56275d42688414fc29dc540da2279c07;hp=9113a11ceec1d968ed2941ad667be46d86a60e8b;hpb=70f46ac34d0f9f1f92f96c6d970e8278daa3308a;p=lttv.git

diff --git a/genevent-new/genevent.c b/genevent-new/genevent.c
index 9113a11c..7408b7e5 100644
--- a/genevent-new/genevent.c
+++ b/genevent-new/genevent.c
@@ -386,6 +386,8 @@ int print_type_declaration(type_descriptor_t * td, FILE *fd, unsigned int tabs,
 	char basename[PATH_MAX];
 	unsigned int basename_len = 0;
 	
+	if(td->custom_write) return 0;	/* Does print custom type */
+	
 	strncpy(basename, nest_name, PATH_MAX);
 	basename_len = strlen(basename);
 	
@@ -666,6 +668,7 @@ int print_type_write(type_descriptor_t * td, FILE *fd, unsigned int tabs,
 	char basename[PATH_MAX];
 	unsigned int basename_len = 0;
 	char get_ptr_char[2] = "";
+	char custom[PATH_MAX] = "";
 	
 	strncpy(basename, nest_name, PATH_MAX);
 	basename_len = strlen(basename);
@@ -690,6 +693,10 @@ int print_type_write(type_descriptor_t * td, FILE *fd, unsigned int tabs,
 		strcpy(get_ptr_char, "&");
 	}
 
+	if(td->custom_write) {
+		strcpy(custom, "_custom");
+	}
+
 	switch(td->type) {
 		case INT_FIXED:
 		case UINT_FIXED:
@@ -734,32 +741,32 @@ int print_type_write(type_descriptor_t * td, FILE *fd, unsigned int tabs,
 		case STRING:
 			print_tabs(tabs, fd);
 			fprintf(fd,
-					"lttng_write_string_%s(buffer, to_base, to, from, len, %s%s);\n",
-					basename, obj_prefix, field_name);
+					"lttng_write%s_string_%s(buffer, to_base, to, from, len, %s%s);\n",
+					custom, basename, obj_prefix, field_name);
 			break;
 		case SEQUENCE:
 			print_tabs(tabs, fd);
 			fprintf(fd,
-					"lttng_write_sequence_%s(buffer, to_base, to, from, len, %s%s%s);",
-					basename, get_ptr_char, obj_prefix, field_name);
+					"lttng_write%s_sequence_%s(buffer, to_base, to, from, len, %s%s%s);",
+					custom, basename, get_ptr_char, obj_prefix, field_name);
 			break;
 		case STRUCT:
 			print_tabs(tabs, fd);
 			fprintf(fd,
-					"lttng_write_struct_%s(buffer, to_base, to, from, len, %s%s%s);",
-					basename, get_ptr_char, obj_prefix, field_name);
+					"lttng_write%s_struct_%s(buffer, to_base, to, from, len, %s%s%s);",
+					custom, basename, get_ptr_char, obj_prefix, field_name);
 			break;
 		case UNION:
 			print_tabs(tabs, fd);
 			fprintf(fd,
-					"lttng_write_union_%s(buffer, to_base, to, from, len, %s%s%s);",
-					basename, get_ptr_char, obj_prefix, field_name);
+					"lttng_write%s_union_%s(buffer, to_base, to, from, len, %s%s%s);",
+					custom, basename, get_ptr_char, obj_prefix, field_name);
 			break;
 		case ARRAY:
 			print_tabs(tabs, fd);
 			fprintf(fd,
-					"lttng_write_array_%s(buffer, to_base, to, from, len, %s%s);",
-					basename, obj_prefix, field_name);
+					"lttng_write%s_array_%s(buffer, to_base, to, from, len, %s%s);",
+					custom, basename, obj_prefix, field_name);
 			break;
 		case NONE:
 			printf("Error : type NONE unexpected\n");
@@ -831,6 +838,8 @@ int print_type_alignment_fct(type_descriptor_t * td, FILE *fd,
 	char basename[PATH_MAX];
 	unsigned int basename_len = 0;
 	
+	if(td->custom_write) return 0;	/* Does print custom type */
+
 	strncpy(basename, nest_name, PATH_MAX);
 	basename_len = strlen(basename);
 	
@@ -977,6 +986,8 @@ int print_type_write_fct(type_descriptor_t * td, FILE *fd, unsigned int tabs,
 	char basename[PATH_MAX];
 	unsigned int basename_len = 0;
 	
+	if(td->custom_write) return 0;	/* Does print custom type */
+
 	strncpy(basename, nest_name, PATH_MAX);
 	basename_len = strlen(basename);
 	
@@ -1068,8 +1079,15 @@ int print_type_write_fct(type_descriptor_t * td, FILE *fd, unsigned int tabs,
 
 	fprintf(fd, "{\n");
 
-	print_tabs(1, fd);
-	fprintf(fd, "size_t size;\n");
+	switch(td->type) {
+		case STRING:
+			print_tabs(1, fd);
+			fprintf(fd, "size_t size;\n");
+			break;
+		default:
+			break;
+	}
+
 	print_tabs(1, fd);
 	fprintf(fd, "size_t align;\n");
 	fprintf(fd, "\n");
@@ -1126,11 +1144,9 @@ int print_type_write_fct(type_descriptor_t * td, FILE *fd, unsigned int tabs,
 		fprintf(fd, "/* Contains only fixed size fields : use compiler sizeof() */\n");
 		fprintf(fd, "\n");
 		print_tabs(1, fd);
-		fprintf(fd, "size = sizeof(");
+		fprintf(fd, "*len += sizeof(");
 		if(print_type(td, fd, 0, basename, field_name)) return 1;
 		fprintf(fd, ");\n");
-		print_tabs(1, fd);
-		fprintf(fd, "*len += size;\n");
 	} else {
 		/* The type contains nested variable size subtypes :
 		 * we must write field by field. */
@@ -1378,7 +1394,7 @@ int print_event_logging_function(char *basename, facility_t *fac,
 		fprintf(fd, "const void **from = &real_from;\n");
 		print_tabs(1, fd);
 	}
-	fprintf(fd, "cycles_t tsc;\n");
+	fprintf(fd, "u64 tsc;\n");
 	print_tabs(1, fd);
 	fprintf(fd, "size_t before_hdr_pad, after_hdr_pad, header_size;\n");
 	fprintf(fd, "\n");
@@ -1566,127 +1582,678 @@ int print_event_logging_function(char *basename, facility_t *fac,
 	return 0;
 }
 
-
-/* ltt-facility-name.h : main logging header.
- * log_header */
-
-void print_log_header_head(facility_t *fac, FILE *fd)
+/* print_event_logging_function_user_generic
+ * Print the logging function of an event for userspace tracing. This is the
+ * core of genevent */
+int print_event_logging_function_user_generic(char *basename, facility_t *fac,
+		event_t *event, FILE *fd)
 {
-	fprintf(fd, "#ifndef _LTT_FACILITY_%s_H_\n", fac->capname);
-	fprintf(fd, "#define _LTT_FACILITY_%s_H_\n\n", fac->capname);
-  fprintf(fd, "#include <linux/types.h>\n");
-  fprintf(fd, "#include <linux/ltt/ltt-facility-id-%s.h>\n", fac->name);
-  fprintf(fd, "#include <linux/ltt-core.h>\n");
-	fprintf(fd, "\n");
-}
-
+	char *attrib;
 
-
-int print_log_header_types(facility_t *fac, FILE *fd)
-{
-	sequence_t *types = &fac->named_types.values;
-	fprintf(fd, "/* Named types */\n");
-	fprintf(fd, "\n");
+	fprintf(fd, "#ifndef LTT_TRACE_FAST\n");
 	
-	for(unsigned int i = 0; i < types->position; i++) {
-		/* For each named type, print the definition */
-		if(print_type_declaration(types->array[i], fd,
-						0, "", "")) return 1;
-		/* Print also the align function */
-		if(print_type_alignment_fct(types->array[i], fd,
-						0, "", "")) return 1;
-		/* Print also the write function */
-		if(print_type_write_fct(types->array[i], fd,
-						0, "", "")) return 1;
+	if(event->no_instrument_function) {
+		attrib = "__attribute__((no_instrument_function)) ";
+	} else {
+		attrib = "";
 	}
-	return 0;
-}
-
-int print_log_header_events(facility_t *fac, FILE *fd)
-{
-	sequence_t *events = &fac->events;
-	char basename[PATH_MAX];
-	unsigned int facname_len;
-	
-	strncpy(basename, fac->name, PATH_MAX);
-	facname_len = strlen(basename);
-	strncat(basename, "_", PATH_MAX-facname_len);
-	facname_len = strlen(basename);
+	if(event->param_buffer) {
+		fprintf(fd, "static inline %sint trace_%s_param_buffer(\n", attrib, basename);
+	} else {
+		fprintf(fd, "static inline %sint trace_%s(\n",attrib, basename);
+	}
+	int	has_argument = 0;
+	int has_type_fixed = 0;
 
-	for(unsigned int i = 0; i < events->position; i++) {
-		event_t *event = (event_t*)events->array[i];
-		strncpy(&basename[facname_len], event->name, PATH_MAX-facname_len);
-		
-		/* For each event, print structure, and then logging function */
-		fprintf(fd, "/* Event %s structures */\n",
-				event->name);
+	if(event->param_buffer) {
+		if(has_argument) {
+				fprintf(fd, ",");
+				fprintf(fd, "\n");
+		}
+		print_tabs(2, fd);
+		fprintf(fd, "void *buffer");
+		has_argument = 1;
+		fprintf(fd, ",");
+		fprintf(fd, "\n");
+		print_tabs(2, fd);
+		fprintf(fd, "size_t reserve_size");
+	} else {
 		for(unsigned int j = 0; j < event->fields.position; j++) {
-			/* For each unnamed type, print the definition */
+			/* For each field, print the function argument */
 			field_t *f = (field_t*)event->fields.array[j];
 			type_descriptor_t *t = f->type;
-			if(t->type_name == NULL) {
-				if((print_type_declaration(t, fd, 0, basename, f->name))) return 1;
-				/* Print also the align function */
-				if((print_type_alignment_fct(t, fd, 0, basename, f->name))) return 1;
-				/* Print also the write function */
-				if((print_type_write_fct(t, fd, 0, basename, f->name))) return 1;
+			if(has_argument) {
+				fprintf(fd, ",");
+				fprintf(fd, "\n");
 			}
+			if(print_arg(t, fd, 2, basename, f->name)) return 1;
+			has_argument = 1;
 		}
+	}
+	if(!has_argument) {
+		print_tabs(2, fd);
+		fprintf(fd, "void");
+	}
+	fprintf(fd,")\n");
+	fprintf(fd, 
+			"#ifndef LTT_TRACE\n");
+	fprintf(fd, "{\n");
+	fprintf(fd, "}\n");
+	fprintf(fd,"#else\n");
+	fprintf(fd, "{\n");
+	/* Print the function variables */
+	print_tabs(1, fd);
+	fprintf(fd, "int ret = 0;\n");
+	if(event->param_buffer) {
+		print_tabs(1, fd);
+		fprintf(fd, "reserve_size = ltt_align(reserve_size, sizeof(void *));\n");
+		print_tabs(1, fd);
+		fprintf(fd, "{\n");
+		goto do_syscall;
+	}
+	print_tabs(1, fd);
+	fprintf(fd, "void *buffer = NULL;\n");
+	print_tabs(1, fd);
+	fprintf(fd, "size_t real_to_base = 0; /* The buffer is allocated on arch_size alignment */\n");
+	print_tabs(1, fd);
+	fprintf(fd, "size_t *to_base = &real_to_base;\n");
+	print_tabs(1, fd);
+	fprintf(fd, "size_t real_to = 0;\n");
+	print_tabs(1, fd);
+	fprintf(fd, "size_t *to = &real_to;\n");
+	print_tabs(1, fd);
+	fprintf(fd, "size_t real_len = 0;\n");
+	print_tabs(1, fd);
+	fprintf(fd, "size_t *len = &real_len;\n");
+	print_tabs(1, fd);
+	fprintf(fd, "size_t reserve_size;\n");
+	print_tabs(1, fd);
+	fprintf(fd, "size_t slot_size;\n");
+	print_tabs(1, fd);
 
-		fprintf(fd, "\n");
+	if(event->fields.position > 0) {
+		for(unsigned int i=0;i<event->fields.position;i++){
+			/* Search for at least one child with fixed size. It means
+			 * we need local variables.*/
+			field_t *field = (field_t*)(event->fields.array[i]);
+			type_descriptor_t *type = field->type;
+			has_type_fixed = has_type_local(type);
+			if(has_type_fixed) break;
+		}
+		
+		if(has_type_fixed) {
+			fprintf(fd, "size_t align;\n");
+			print_tabs(1, fd);
+		}
 
-		fprintf(fd, "/* Event %s logging function */\n",
-				event->name);
+		fprintf(fd, "const void *real_from;\n");
+		print_tabs(1, fd);
+		fprintf(fd, "const void **from = &real_from;\n");
+		print_tabs(1, fd);
+	}
+
+	/* Calculate event variable len + event data alignment offset.
+	 * Assume that the padding for alignment starts at a void*
+	 * address.
+	 * This excludes the header size and alignment. */
+
+	print_tabs(1, fd);
+	fprintf(fd, "/* For each field, calculate the field size. */\n");
+	print_tabs(1, fd);
+	fprintf(fd, "/* size = *to_base + *to + *len */\n");
+	print_tabs(1, fd);
+	fprintf(fd, "/* Assume that the padding for alignment starts at a\n");
+	print_tabs(1, fd);
+	fprintf(fd, " * sizeof(void *) address. */\n");
+	fprintf(fd, "\n");
 
-		if(print_event_logging_function(basename, fac, event, fd)) return 1;
+	for(unsigned int i=0;i<event->fields.position;i++){
+		field_t *field = (field_t*)(event->fields.array[i]);
+		type_descriptor_t *type = field->type;
+		/* Set from */
+		print_tabs(1, fd);
+		switch(type->type) {
+			case SEQUENCE:
+			case UNION:
+			case ARRAY:
+			case STRUCT:
+			case STRING:
+				fprintf(fd, "*from = lttng_param_%s;\n", field->name);
+				break;
+			default:
+				fprintf(fd, "*from = &lttng_param_%s;\n", field->name);
+				break;
+		}
 
+		if(print_type_write(type,
+				fd, 1, basename, field->name, "lttng_param_", 0)) return 1;
 		fprintf(fd, "\n");
 	}
-	
-	return 0;
-}
+	print_tabs(1, fd);
+	fprintf(fd, "reserve_size = *to_base + *to + *len;\n");
 
+	print_tabs(1, fd);
+	fprintf(fd, "{\n");
+	print_tabs(2, fd);
+	fprintf(fd, "char stack_buffer[reserve_size];\n");
+	print_tabs(2, fd);
+	fprintf(fd, "buffer = stack_buffer;\n");
+	fprintf(fd, "\n");
 
-void print_log_header_tail(facility_t *fac, FILE *fd)
-{
-	fprintf(fd, "#endif //_LTT_FACILITY_%s_H_\n",fac->capname);
-}
 	
-int print_log_header(facility_t *fac)
-{
-	char filename[PATH_MAX];
-	unsigned int filename_size = 0;
-	FILE *fd;
-	dprintf("%s\n", fac->name);
+	//print_tabs(2, fd);
+	// for DEBUG only 
+	// fprintf(fd, "goto commit; /* DEBUG : never actually write. */\n\n");
+	print_tabs(2, fd);
+	fprintf(fd, "*to_base = *to = *len = 0;\n");
+	fprintf(fd, "\n");
 
-	strcpy(filename, "ltt-facility-");
-	filename_size = strlen(filename);
-	
-	strncat(filename, fac->name, PATH_MAX - filename_size);
-	filename_size = strlen(filename);
+	/* write data. */
 
-	strncat(filename, ".h", PATH_MAX - filename_size);
-	filename_size = strlen(filename);
+	for(unsigned int i=0;i<event->fields.position;i++){
+		field_t *field = (field_t*)(event->fields.array[i]);
+		type_descriptor_t *type = field->type;
 	
+		/* Set from */
+		print_tabs(2, fd);
+		switch(type->type) {
+			case SEQUENCE:
+			case UNION:
+			case ARRAY:
+			case STRUCT:
+			case STRING:
+				fprintf(fd, "*from = lttng_param_%s;\n", field->name);
+				break;
+			default:
+				fprintf(fd, "*from = &lttng_param_%s;\n", field->name);
+				break;
+		}
 
-	fd = fopen(filename, "w");
-	if(fd == NULL) {
-		printf("Error opening file %s for writing : %s\n",
-				filename, strerror(errno));
-		return errno;
+
+		if(print_type_write(type,
+				fd, 2, basename, field->name, "lttng_param_", 0)) return 1;
+		fprintf(fd, "\n");
+		
+		/* Don't forget to flush pending memcpy */
+		print_tabs(2, fd);
+		fprintf(fd, "/* Flush pending memcpy */\n");
+		print_tabs(2, fd);
+		fprintf(fd, "if(*len != 0) {\n");
+		print_tabs(3, fd);
+		fprintf(fd, "memcpy(buffer+*to_base+*to, *from, *len);\n");
+		print_tabs(3, fd);
+		fprintf(fd, "*to += *len;\n");
+		//print_tabs(3, fd);
+		//fprintf(fd, "from += len;\n");
+		print_tabs(3, fd);
+		fprintf(fd, "*len = 0;\n");
+		print_tabs(2, fd);
+		fprintf(fd, "}\n");
+		fprintf(fd, "\n");
 	}
 
-	/* Print file head */
-	print_log_header_head(fac, fd);
+do_syscall:
+	print_tabs(2, fd);
+	fprintf(fd, "ret = ltt_trace_generic(ltt_facility_%s_%X, event_%s_%s, buffer, reserve_size, LTT_BLOCKING);\n", fac->name, fac->checksum, fac->name, event->name);
 
-	/* print named types in declaration order */
+	print_tabs(1, fd);
+	fprintf(fd, "}\n\n");
+	
+	print_tabs(1, fd);
+	fprintf(fd, "return ret;\n\n");
+
+	fprintf(fd, "}\n");
+	fprintf(fd, 
+			"#endif //LTT_TRACE\n");
+	fprintf(fd, "#endif //!LTT_TRACE_FAST\n\n");
+
+	return 0;
+}
+
+/* print_event_logging_function_user_fast
+ * Print the logging function of an event for userspace tracing. This is the
+ * core of genevent */
+int print_event_logging_function_user_fast(char *basename, facility_t *fac,
+		event_t *event, FILE *fd)
+{
+	char *attrib;
+
+	fprintf(fd, "#ifdef LTT_TRACE_FAST\n");
+	
+	if(event->no_instrument_function) {
+		attrib = "__attribute__((no_instrument_function)) ";
+	} else {
+		attrib = "";
+	}
+	fprintf(fd, "static inline %sint trace_%s(\n",attrib, basename);
+
+	int	has_argument = 0;
+	int has_type_fixed = 0;
+
+	for(unsigned int j = 0; j < event->fields.position; j++) {
+		/* For each field, print the function argument */
+		field_t *f = (field_t*)event->fields.array[j];
+		type_descriptor_t *t = f->type;
+		if(has_argument) {
+			fprintf(fd, ",");
+			fprintf(fd, "\n");
+		}
+		if(print_arg(t, fd, 2, basename, f->name)) return 1;
+		has_argument = 1;
+	}
+	if(!has_argument) {
+		print_tabs(2, fd);
+		fprintf(fd, "void");
+	}
+	fprintf(fd,")\n");
+	fprintf(fd, 
+			"#ifndef LTT_TRACE\n");
+	fprintf(fd, "{\n");
+	fprintf(fd, "}\n");
+	fprintf(fd,"#else\n");
+	fprintf(fd, "{\n");
+	/* Print the function variables */
+	print_tabs(1, fd);
+	fprintf(fd, "unsigned int index;\n");
+	print_tabs(1, fd);
+	fprintf(fd, "struct ltt_trace_info *trace = thread_trace_info;\n");
+	print_tabs(1, fd);
+	fprintf(fd, "struct ltt_buf *ltt_buf;\n");
+	print_tabs(1, fd);
+	fprintf(fd, "void *buffer = NULL;\n");
+	print_tabs(1, fd);
+	fprintf(fd, "size_t real_to_base = 0; /* The buffer is allocated on arch_size alignment */\n");
+	print_tabs(1, fd);
+	fprintf(fd, "size_t *to_base = &real_to_base;\n");
+	print_tabs(1, fd);
+	fprintf(fd, "size_t real_to = 0;\n");
+	print_tabs(1, fd);
+	fprintf(fd, "size_t *to = &real_to;\n");
+	print_tabs(1, fd);
+	fprintf(fd, "size_t real_len = 0;\n");
+	print_tabs(1, fd);
+	fprintf(fd, "size_t *len = &real_len;\n");
+	print_tabs(1, fd);
+	fprintf(fd, "size_t reserve_size;\n");
+	print_tabs(1, fd);
+	fprintf(fd, "size_t slot_size;\n");
+	print_tabs(1, fd);
+
+	if(event->fields.position > 0) {
+		for(unsigned int i=0;i<event->fields.position;i++){
+			/* Search for at least one child with fixed size. It means
+			 * we need local variables.*/
+			field_t *field = (field_t*)(event->fields.array[i]);
+			type_descriptor_t *type = field->type;
+			has_type_fixed = has_type_local(type);
+			if(has_type_fixed) break;
+		}
+		
+		if(has_type_fixed) {
+			fprintf(fd, "size_t align;\n");
+			print_tabs(1, fd);
+		}
+
+		fprintf(fd, "const void *real_from;\n");
+		print_tabs(1, fd);
+		fprintf(fd, "const void **from = &real_from;\n");
+		print_tabs(1, fd);
+	}
+	fprintf(fd, "uint64_t tsc;\n");
+	print_tabs(1, fd);
+	fprintf(fd, "size_t before_hdr_pad, after_hdr_pad, header_size;\n");
+	fprintf(fd, "\n");
+	
+	print_tabs(1, fd);
+	fprintf(fd, "if(!trace) {\n");
+	print_tabs(2, fd);
+	fprintf(fd, "ltt_thread_init();\n");
+	print_tabs(2, fd);
+	fprintf(fd, "trace = thread_trace_info;\n");
+	print_tabs(1, fd);
+	fprintf(fd, "}\n\n");
+	fprintf(fd, "\n");
+
+	/* Calculate event variable len + event data alignment offset.
+	 * Assume that the padding for alignment starts at a void*
+	 * address.
+	 * This excludes the header size and alignment. */
+
+	print_tabs(1, fd);
+	fprintf(fd, "/* For each field, calculate the field size. */\n");
+	print_tabs(1, fd);
+	fprintf(fd, "/* size = *to_base + *to + *len */\n");
+	print_tabs(1, fd);
+	fprintf(fd, "/* Assume that the padding for alignment starts at a\n");
+	print_tabs(1, fd);
+	fprintf(fd, " * sizeof(void *) address. */\n");
+	fprintf(fd, "\n");
+
+	for(unsigned int i=0;i<event->fields.position;i++){
+		field_t *field = (field_t*)(event->fields.array[i]);
+		type_descriptor_t *type = field->type;
+		/* Set from */
+		print_tabs(1, fd);
+		switch(type->type) {
+			case SEQUENCE:
+			case UNION:
+			case ARRAY:
+			case STRUCT:
+			case STRING:
+				fprintf(fd, "*from = lttng_param_%s;\n", field->name);
+				break;
+			default:
+				fprintf(fd, "*from = &lttng_param_%s;\n", field->name);
+				break;
+		}
+
+		if(print_type_write(type,
+				fd, 1, basename, field->name, "lttng_param_", 0)) return 1;
+		fprintf(fd, "\n");
+	}
+	print_tabs(1, fd);
+	fprintf(fd, "reserve_size = *to_base + *to + *len;\n");
+
+	print_tabs(1, fd);
+	fprintf(fd, "trace->nesting++;\n");
+
+	/* Get facility index */
+
+	print_tabs(1, fd);
+	fprintf(fd, 
+		"index = ltt_get_index_from_facility(ltt_facility_%s_%X,\n"\
+				"\t\t\t\t\t\tevent_%s_%s);\n",
+			fac->name, fac->checksum, fac->name, event->name);
+	fprintf(fd,"\n");
+
+	
+	print_tabs(1, fd);
+	fprintf(fd, "{\n");
+
+	if(event->per_trace) {
+		print_tabs(2, fd);
+		fprintf(fd, "if(dest_trace != trace) continue;\n\n");
+	}
+ 
+	print_tabs(2, fd);
+	fprintf(fd, "ltt_buf = ltt_get_channel_from_index(trace, index);\n");
+	print_tabs(2, fd);
+
+	
+	/* Relay reserve */
+	/* If error, increment event lost counter (done by ltt_reserve_slot) and 
+	 * return */
+	print_tabs(2, fd);
+	fprintf(fd, "slot_size = 0;\n");
+	print_tabs(2, fd);
+	fprintf(fd, "buffer = ltt_reserve_slot(trace, ltt_buf,\n");
+	print_tabs(3, fd);
+	fprintf(fd, "reserve_size, &slot_size, &tsc,\n");
+	print_tabs(3, fd);
+	fprintf(fd, "&before_hdr_pad, &after_hdr_pad, &header_size);\n");
+	/* If error, return */
+	print_tabs(2, fd);
+	fprintf(fd, "if(!buffer) goto end; /* buffer full */\n\n");
+	//print_tabs(2, fd);
+	// for DEBUG only 
+	// fprintf(fd, "goto commit; /* DEBUG : never actually write. */\n\n");
+	print_tabs(2, fd);
+	fprintf(fd, "*to_base = *to = *len = 0;\n");
+	fprintf(fd, "\n");
+
+	/* Write event header */
+	print_tabs(2, fd);
+	fprintf(fd, "ltt_write_event_header(trace, ltt_buf, buffer,\n");
+	print_tabs(3, fd);
+	fprintf(fd, "ltt_facility_%s_%X, event_%s_%s,\n", fac->name, fac->checksum,
+									fac->name, event->name);
+	print_tabs(3, fd);
+	fprintf(fd, "reserve_size, before_hdr_pad, tsc);\n");
+	print_tabs(2, fd);
+	fprintf(fd, "*to_base += before_hdr_pad + after_hdr_pad + header_size;\n");
+	fprintf(fd, "\n");
+	
+	/* write data. */
+
+	for(unsigned int i=0;i<event->fields.position;i++){
+		field_t *field = (field_t*)(event->fields.array[i]);
+		type_descriptor_t *type = field->type;
+	
+		/* Set from */
+		print_tabs(2, fd);
+		switch(type->type) {
+			case SEQUENCE:
+			case UNION:
+			case ARRAY:
+			case STRUCT:
+			case STRING:
+				fprintf(fd, "*from = lttng_param_%s;\n", field->name);
+				break;
+			default:
+				fprintf(fd, "*from = &lttng_param_%s;\n", field->name);
+				break;
+		}
+
+
+		if(print_type_write(type,
+				fd, 2, basename, field->name, "lttng_param_", 0)) return 1;
+		fprintf(fd, "\n");
+		
+		/* Don't forget to flush pending memcpy */
+		print_tabs(2, fd);
+		fprintf(fd, "/* Flush pending memcpy */\n");
+		print_tabs(2, fd);
+		fprintf(fd, "if(*len != 0) {\n");
+		print_tabs(3, fd);
+		fprintf(fd, "memcpy(buffer+*to_base+*to, *from, *len);\n");
+		print_tabs(3, fd);
+		fprintf(fd, "*to += *len;\n");
+		//print_tabs(3, fd);
+		//fprintf(fd, "from += len;\n");
+		print_tabs(3, fd);
+		fprintf(fd, "*len = 0;\n");
+		print_tabs(2, fd);
+		fprintf(fd, "}\n");
+		fprintf(fd, "\n");
+	}
+
+	
+	/* commit */
+	// for DEBUG only.
+	//fprintf(fd, "commit:\n"); /* DEBUG! */
+	print_tabs(2, fd);
+	fprintf(fd, "ltt_commit_slot(ltt_buf, buffer, slot_size);\n\n");
+	
+	fprintf(fd, "}\n\n");
+
+	fprintf(fd, "end:\n");
+	/* Release locks */
+	print_tabs(1, fd);
+	fprintf(fd, "trace->nesting--;\n");
+
+
+	fprintf(fd, "}\n");
+	fprintf(fd, 
+			"#endif //LTT_TRACE\n");
+	fprintf(fd, "#endif //LTT_TRACE_FAST\n");
+
+	return 0;
+}
+
+
+
+
+
+
+/* ltt-facility-name.h : main logging header.
+ * log_header */
+
+void print_log_header_head(facility_t *fac, FILE *fd)
+{
+	fprintf(fd, "#ifndef _LTT_FACILITY_%s_H_\n", fac->capname);
+	fprintf(fd, "#define _LTT_FACILITY_%s_H_\n\n", fac->capname);
+  fprintf(fd, "#include <linux/types.h>\n");
+	if(!fac->arch)
+	  fprintf(fd, "#include <linux/ltt/ltt-facility-id-%s.h>\n", fac->name);
+	else
+	  fprintf(fd, "#include <asm/ltt/ltt-facility-id-%s_%s.h>\n",
+				fac->name,
+				fac->arch);
+  fprintf(fd, "#include <linux/ltt-core.h>\n");
+	fprintf(fd, "\n");
+}
+
+/* ltt-facility-name.h : main logging header.
+ * log_header */
+
+void print_log_header_head_user(facility_t *fac, FILE *fd)
+{
+	fprintf(fd, "#ifndef _LTT_FACILITY_%s_H_\n", fac->capname);
+	fprintf(fd, "#define _LTT_FACILITY_%s_H_\n\n", fac->capname);
+  fprintf(fd, "#include <sys/types.h>\n");
+	if(!fac->arch)
+	  fprintf(fd, "#include <ltt/ltt-facility-id-%s.h>\n", fac->name);
+	else
+	  fprintf(fd, "#include <asm/ltt/ltt-facility-id-%s_%s.h>\n",
+				fac->name,
+				fac->arch);
+  fprintf(fd, "#include <ltt/ltt-generic.h>\n");
+	fprintf(fd, "\n");
+}
+
+
+int print_log_header_types(facility_t *fac, FILE *fd)
+{
+	sequence_t *types = &fac->named_types.values;
+	fprintf(fd, "/* Named types */\n");
+	fprintf(fd, "\n");
+	
+	for(unsigned int i = 0; i < types->position; i++) {
+		/* For each named type, print the definition */
+		if(print_type_declaration(types->array[i], fd,
+						0, "", "")) return 1;
+		/* Print also the align function */
+		if(print_type_alignment_fct(types->array[i], fd,
+						0, "", "")) return 1;
+		/* Print also the write function */
+		if(print_type_write_fct(types->array[i], fd,
+						0, "", "")) return 1;
+	}
+	return 0;
+}
+
+int print_log_header_events(facility_t *fac, FILE *fd)
+{
+	sequence_t *events = &fac->events;
+	char basename[PATH_MAX];
+	unsigned int facname_len;
+	
+	strncpy(basename, fac->name, PATH_MAX);
+	facname_len = strlen(basename);
+	strncat(basename, "_", PATH_MAX-facname_len);
+	facname_len = strlen(basename);
+
+	for(unsigned int i = 0; i < events->position; i++) {
+		event_t *event = (event_t*)events->array[i];
+		strncpy(&basename[facname_len], event->name, PATH_MAX-facname_len);
+		
+		/* For each event, print structure, and then logging function */
+		fprintf(fd, "/* Event %s structures */\n",
+				event->name);
+		for(unsigned int j = 0; j < event->fields.position; j++) {
+			/* For each unnamed type, print the definition */
+			field_t *f = (field_t*)event->fields.array[j];
+			type_descriptor_t *t = f->type;
+			if(t->type_name == NULL) {
+				if((print_type_declaration(t, fd, 0, basename, f->name))) return 1;
+				/* Print also the align function */
+				if((print_type_alignment_fct(t, fd, 0, basename, f->name))) return 1;
+				/* Print also the write function */
+				if((print_type_write_fct(t, fd, 0, basename, f->name))) return 1;
+			}
+		}
+
+		fprintf(fd, "\n");
+
+		fprintf(fd, "/* Event %s logging function */\n",
+				event->name);
+		
+		if(!fac->user) {
+			if(print_event_logging_function(basename, fac, event, fd)) return 1;
+		} else {
+			if(print_event_logging_function_user_generic(basename, fac, event, fd))
+				return 1;
+			if(print_event_logging_function_user_fast(basename, fac, event, fd))
+				return 1;
+		}
+
+		fprintf(fd, "\n");
+	}
+	
+	return 0;
+}
+
+
+void print_log_header_tail(facility_t *fac, FILE *fd)
+{
+	fprintf(fd, "#endif //_LTT_FACILITY_%s_H_\n",fac->capname);
+}
+
+void print_log_header_tail_user(facility_t *fac, FILE *fd)
+{
+	fprintf(fd, "#endif //_LTT_FACILITY_%s_H_\n",fac->capname);
+}
+	
+int print_log_header(facility_t *fac)
+{
+	char filename[PATH_MAX];
+	unsigned int filename_size = 0;
+	FILE *fd;
+	dprintf("%s\n", fac->name);
+
+	strcpy(filename, "ltt-facility-");
+	filename_size = strlen(filename);
+	
+	strncat(filename, fac->name, PATH_MAX - filename_size);
+	filename_size = strlen(filename);
+
+	if(fac->arch) {
+		strncat(filename, "_", PATH_MAX - filename_size);
+		filename_size = strlen(filename);
+
+		strncat(filename, fac->arch, PATH_MAX - filename_size);
+		filename_size = strlen(filename);
+	}
+
+	strncat(filename, ".h", PATH_MAX - filename_size);
+	filename_size = strlen(filename);
+	
+
+	fd = fopen(filename, "w");
+	if(fd == NULL) {
+		printf("Error opening file %s for writing : %s\n",
+				filename, strerror(errno));
+		return errno;
+	}
+
+	/* Print file head */
+	if(!fac->user)
+		print_log_header_head(fac, fd);
+	else
+		print_log_header_head_user(fac, fd);
+
+	/* print named types in declaration order */
 	if(print_log_header_types(fac, fd)) return 1;
 
 	/* Print events */
 	if(print_log_header_events(fac, fd)) return 1;
 	
 	/* Print file tail */
-	print_log_header_tail(fac, fd);
+	if(!fac->user)
+		print_log_header_tail(fac, fd);
+	else
+		print_log_header_tail_user(fac, fd);
+
 
 	
 	fclose(fd);
@@ -1713,6 +2280,14 @@ int print_id_header(facility_t *fac)
 	strncat(filename, fac->name, PATH_MAX - filename_size);
 	filename_size = strlen(filename);
 
+	if(fac->arch) {
+		strncat(filename, "_", PATH_MAX - filename_size);
+		filename_size = strlen(filename);
+
+		strncat(filename, fac->arch, PATH_MAX - filename_size);
+		filename_size = strlen(filename);
+	}
+
 	strncat(filename, ".h", PATH_MAX - filename_size);
 	filename_size = strlen(filename);
 	
@@ -1724,39 +2299,75 @@ int print_id_header(facility_t *fac)
 		return errno;
 	}
 
-  fprintf(fd, "#ifndef _LTT_FACILITY_ID_%s_H_\n",fac->capname);
-  fprintf(fd, "#define _LTT_FACILITY_ID_%s_H_\n\n",fac->capname);
-  fprintf(fd, "#ifdef CONFIG_LTT\n");
+	if(!fac->user) {
+		fprintf(fd, "#ifndef _LTT_FACILITY_ID_%s_H_\n",fac->capname);
+		fprintf(fd, "#define _LTT_FACILITY_ID_%s_H_\n\n",fac->capname);
+		fprintf(fd, "#ifdef CONFIG_LTT\n");
 
-  fprintf(fd,"#include <linux/ltt-facilities.h>\n\n");
+		fprintf(fd,"#include <linux/ltt-facilities.h>\n\n");
 
-  fprintf(fd,"/****  facility handle  ****/\n\n");
-  fprintf(fd,"extern ltt_facility_t ltt_facility_%s_%X;\n",
-			fac->name, fac->checksum);
-  fprintf(fd,"extern ltt_facility_t ltt_facility_%s;\n\n\n",fac->name);
+		fprintf(fd,"/****  facility handle  ****/\n\n");
+		fprintf(fd,"extern ltt_facility_t ltt_facility_%s_%X;\n",
+				fac->name, fac->checksum);
+		fprintf(fd,"extern ltt_facility_t ltt_facility_%s;\n\n\n",fac->name);
 
-	strncpy(basename, fac->name, PATH_MAX);
-	basename_len = strlen(basename);
-	strncat(basename, "_", PATH_MAX - basename_len);
-	basename_len++;
-	
-	fprintf(fd,"/****  event index  ****/\n\n");
-	fprintf(fd,"enum %s_event {\n",fac->name);
-	
-	for(unsigned int i = 0; i < fac->events.position; i++) {
-		event_t *event = (event_t*)fac->events.array[i];
-		strncpy(basename+basename_len, event->name, PATH_MAX-basename_len);
+		strncpy(basename, fac->name, PATH_MAX);
+		basename_len = strlen(basename);
+		strncat(basename, "_", PATH_MAX - basename_len);
+		basename_len++;
+		
+		fprintf(fd,"/****  event index  ****/\n\n");
+		fprintf(fd,"enum %s_event {\n",fac->name);
+		
+		for(unsigned int i = 0; i < fac->events.position; i++) {
+			event_t *event = (event_t*)fac->events.array[i];
+			strncpy(basename+basename_len, event->name, PATH_MAX-basename_len);
+			print_tabs(1, fd);
+			fprintf(fd, "event_%s,\n", basename);
+		}
 		print_tabs(1, fd);
-		fprintf(fd, "event_%s,\n", basename);
-	}
-	print_tabs(1, fd);
-	fprintf(fd, "facility_%s_num_events\n", fac->name);
-	fprintf(fd, "};\n");
-	fprintf(fd, "\n");
+		fprintf(fd, "facility_%s_num_events\n", fac->name);
+		fprintf(fd, "};\n");
+		fprintf(fd, "\n");
 
 
-  fprintf(fd, "#endif //CONFIG_LTT\n");
-  fprintf(fd, "#endif //_LTT_FACILITY_ID_%s_H_\n",fac->capname);
+		fprintf(fd, "#endif //CONFIG_LTT\n");
+		fprintf(fd, "#endif //_LTT_FACILITY_ID_%s_H_\n",fac->capname);
+	} else {
+		fprintf(fd, "#ifndef _LTT_FACILITY_ID_%s_H_\n",fac->capname);
+		fprintf(fd, "#define _LTT_FACILITY_ID_%s_H_\n\n",fac->capname);
+		fprintf(fd, "#ifdef LTT_TRACE\n");
+
+		fprintf(fd,"#include <ltt/ltt-generic.h>\n\n");
+
+		fprintf(fd,"/****  facility handle  ****/\n\n");
+		fprintf(fd,"extern ltt_facility_t ltt_facility_%s_%X;\n",
+				fac->name, fac->checksum);
+		fprintf(fd,"extern ltt_facility_t ltt_facility_%s;\n\n\n",fac->name);
+
+		strncpy(basename, fac->name, PATH_MAX);
+		basename_len = strlen(basename);
+		strncat(basename, "_", PATH_MAX - basename_len);
+		basename_len++;
+		
+		fprintf(fd,"/****  event index  ****/\n\n");
+		fprintf(fd,"enum %s_event {\n",fac->name);
+		
+		for(unsigned int i = 0; i < fac->events.position; i++) {
+			event_t *event = (event_t*)fac->events.array[i];
+			strncpy(basename+basename_len, event->name, PATH_MAX-basename_len);
+			print_tabs(1, fd);
+			fprintf(fd, "event_%s,\n", basename);
+		}
+		print_tabs(1, fd);
+		fprintf(fd, "facility_%s_num_events\n", fac->name);
+		fprintf(fd, "};\n");
+		fprintf(fd, "\n");
+
+
+		fprintf(fd, "#endif //LTT_TRACE\n");
+		fprintf(fd, "#endif //_LTT_FACILITY_ID_%s_H_\n",fac->capname);
+	}
 
 
 	fclose(fd);
@@ -1780,6 +2391,14 @@ int print_loader_header(facility_t *fac)
 	strncat(filename, fac->name, PATH_MAX - filename_size);
 	filename_size = strlen(filename);
 
+	if(fac->arch) {
+		strncat(filename, "_", PATH_MAX - filename_size);
+		filename_size = strlen(filename);
+
+		strncat(filename, fac->arch, PATH_MAX - filename_size);
+		filename_size = strlen(filename);
+	}
+
 	strncat(filename, ".h", PATH_MAX - filename_size);
 	filename_size = strlen(filename);
 	
@@ -1795,8 +2414,13 @@ int print_loader_header(facility_t *fac)
   fprintf(fd, "#define _LTT_FACILITY_LOADER_%s_H_\n\n", fac->capname);
   fprintf(fd, "#ifdef CONFIG_LTT\n\n");
   fprintf(fd,"#include <linux/ltt-facilities.h>\n");
-  fprintf(fd,"#include <linux/ltt/ltt-facility-id-%s.h>\n\n",
-			fac->name);
+	if(!fac->arch)
+	  fprintf(fd,"#include <linux/ltt/ltt-facility-id-%s.h>\n\n",
+				fac->name);
+	else
+	  fprintf(fd,"#include <asm/ltt/ltt-facility-id-%s_%s.h>\n\n",
+				fac->name,
+				fac->arch);
   fprintf(fd,"ltt_facility_t\tltt_facility_%s;\n", fac->name);
   fprintf(fd,"ltt_facility_t\tltt_facility_%s_%X;\n\n",
 			fac->name, fac->checksum);
@@ -1817,7 +2441,70 @@ int print_loader_header(facility_t *fac)
 	return 0;
 }
 
-/* ltt-facility-loader-name.c : generic faciilty loader
+int print_loader_header_user(facility_t *fac)
+{
+	char filename[PATH_MAX];
+	unsigned int filename_size = 0;
+	FILE *fd;
+	dprintf("%s\n", fac->name);
+
+	strcpy(filename, "ltt-facility-loader-");
+	filename_size = strlen(filename);
+	
+	strncat(filename, fac->name, PATH_MAX - filename_size);
+	filename_size = strlen(filename);
+
+	if(fac->arch) {
+		strncat(filename, "_", PATH_MAX - filename_size);
+		filename_size = strlen(filename);
+
+		strncat(filename, fac->arch, PATH_MAX - filename_size);
+		filename_size = strlen(filename);
+	}
+
+	strncat(filename, ".h", PATH_MAX - filename_size);
+	filename_size = strlen(filename);
+	
+
+	fd = fopen(filename, "w");
+	if(fd == NULL) {
+		printf("Error opening file %s for writing : %s\n",
+				filename, strerror(errno));
+		return errno;
+	}
+
+  fprintf(fd, "#ifndef _LTT_FACILITY_LOADER_%s_H_\n", fac->capname);
+  fprintf(fd, "#define _LTT_FACILITY_LOADER_%s_H_\n\n", fac->capname);
+  fprintf(fd,"#include <ltt/ltt-generic.h>\n");
+	if(!fac->arch)
+	  fprintf(fd,"#include <ltt/ltt-facility-id-%s.h>\n\n",
+				fac->name);
+	else
+	  fprintf(fd,"#include <asm/ltt/ltt-facility-id-%s_%s.h>\n\n",
+				fac->name,
+				fac->arch);
+  fprintf(fd,"ltt_facility_t\tltt_facility_%s;\n", fac->name);
+  fprintf(fd,"ltt_facility_t\tltt_facility_%s_%X;\n\n",
+			fac->name, fac->checksum);
+
+  fprintf(fd,"#define LTT_FACILITY_SYMBOL\t\t\t\t\t\t\tltt_facility_%s\n",
+      fac->name);
+  fprintf(fd,"#define LTT_FACILITY_CHECKSUM_SYMBOL\t\tltt_facility_%s_%X\n",
+      fac->name, fac->checksum);
+  fprintf(fd,"#define LTT_FACILITY_CHECKSUM\t\t\t\t\t\t0x%X\n", fac->checksum);
+  fprintf(fd,"#define LTT_FACILITY_NAME\t\t\t\t\t\t\t\t\"%s\"\n", fac->name);
+  fprintf(fd,"#define LTT_FACILITY_NUM_EVENTS\t\t\t\t\tfacility_%s_num_events\n\n",
+			fac->name);
+  fprintf(fd, "#endif //_LTT_FACILITY_LOADER_%s_H_\n", fac->capname);
+
+	fclose(fd);
+
+	return 0;
+}
+
+
+
+/* ltt-facility-loader-name.c : generic facility loader
  * loader_c */
 int print_loader_c(facility_t *fac)
 {
@@ -1832,6 +2519,14 @@ int print_loader_c(facility_t *fac)
 	strncat(filename, fac->name, PATH_MAX - filename_size);
 	filename_size = strlen(filename);
 
+	if(fac->arch) {
+		strncat(filename, "_", PATH_MAX - filename_size);
+		filename_size = strlen(filename);
+
+		strncat(filename, fac->arch, PATH_MAX - filename_size);
+		filename_size = strlen(filename);
+	}
+
 	strncat(filename, ".c", PATH_MAX - filename_size);
 	filename_size = strlen(filename);
 	
@@ -1844,7 +2539,10 @@ int print_loader_c(facility_t *fac)
 	}
 
   fprintf(fd, "/*\n");
-  fprintf(fd, " * ltt-facility-loader-%s.c\n", fac->name);
+	if(!fac->arch)
+	  fprintf(fd, " * ltt-facility-loader-%s.c\n", fac->name);
+	else
+	  fprintf(fd, " * ltt-facility-loader-%s_%s.c\n", fac->name, fac->arch);
   fprintf(fd, " *\n");
   fprintf(fd, " * (C) Copyright  2005 - \n");
   fprintf(fd, " *          Mathieu Desnoyers (mathieu.desnoyers@polymtl.ca)\n");
@@ -1858,7 +2556,11 @@ int print_loader_c(facility_t *fac)
   fprintf(fd, "#include <linux/module.h>\n");
   fprintf(fd, "#include <linux/init.h>\n");
   fprintf(fd, "#include <linux/config.h>\n");
-  fprintf(fd, "#include \"ltt-facility-loader-%s.h\"\n", fac->name);
+	if(!fac->arch)
+  	fprintf(fd, "#include \"ltt-facility-loader-%s.h\"\n", fac->name);
+	else
+	  fprintf(fd, "#include \"ltt-facility-loader-%s_%s.h\"\n",
+				fac->name, fac->arch);
   fprintf(fd, "\n");
   fprintf(fd, "\n");
   fprintf(fd, "#ifdef CONFIG_LTT\n");
@@ -1877,15 +2579,11 @@ int print_loader_c(facility_t *fac)
   fprintf(fd, "\t.symbol = SYMBOL_STRING(LTT_FACILITY_SYMBOL),\n");
   fprintf(fd, "};\n");
   fprintf(fd, "\n");
-  fprintf(fd, "#ifndef MODULE\n");
-  fprintf(fd, "\n");
-  fprintf(fd, "/* Built-in facility. */\n");
-  fprintf(fd, "\n");
   fprintf(fd, "static int __init facility_init(void)\n");
   fprintf(fd, "{\n");
   fprintf(fd, "\tprintk(KERN_INFO \"LTT : ltt-facility-%s init in kernel\\n\");\n", fac->name);
   fprintf(fd, "\n");
-  fprintf(fd, "\tLTT_FACILITY_SYMBOL = ltt_facility_builtin_register(&facility);\n");
+  fprintf(fd, "\tLTT_FACILITY_SYMBOL = ltt_facility_kernel_register(&facility);\n");
   fprintf(fd, "\tLTT_FACILITY_CHECKSUM_SYMBOL = LTT_FACILITY_SYMBOL;\n");
   fprintf(fd, "\t\n");
   fprintf(fd, "\treturn LTT_FACILITY_SYMBOL;\n");
@@ -1893,32 +2591,18 @@ int print_loader_c(facility_t *fac)
   fprintf(fd, "__initcall(facility_init);\n");
   fprintf(fd, "\n");
   fprintf(fd, "\n");
-  fprintf(fd, "\n");
-  fprintf(fd, "#else \n");
-  fprintf(fd, "\n");
-  fprintf(fd, "/* Dynamic facility. */\n");
-  fprintf(fd, "\n");
-  fprintf(fd, "static int __init facility_init(void)\n");
-  fprintf(fd, "{\n");
-  fprintf(fd, "\tprintk(KERN_INFO \"LTT : ltt-facility-%s init dynamic\\n\");\n", fac->name);
-  fprintf(fd, "\n");
-  fprintf(fd, "\tLTT_FACILITY_SYMBOL = ltt_facility_dynamic_register(&facility);\n");
-  fprintf(fd, "\tLTT_FACILITY_CHECKSUM_SYMBOL = LTT_FACILITY_SYMBOL;\n");
-  fprintf(fd, "\n");
-  fprintf(fd, "\treturn LTT_FACILITY_SYMBOL;\n");
-  fprintf(fd, "}\n");
+  fprintf(fd, "#ifndef MODULE\n");
   fprintf(fd, "\n");
   fprintf(fd, "static void __exit facility_exit(void)\n");
   fprintf(fd, "{\n");
   fprintf(fd, "\tint err;\n");
   fprintf(fd, "\n");
-  fprintf(fd, "\terr = ltt_facility_dynamic_unregister(LTT_FACILITY_SYMBOL);\n");
+  fprintf(fd, "\terr = ltt_facility_unregister(LTT_FACILITY_SYMBOL);\n");
   fprintf(fd, "\tif(err != 0)\n");
   fprintf(fd, "\t\tprintk(KERN_ERR \"LTT : Error in unregistering facility.\\n\");\n");
   fprintf(fd, "\n");
   fprintf(fd, "}\n");
   fprintf(fd, "\n");
-  fprintf(fd, "module_init(facility_init)\n");
   fprintf(fd, "module_exit(facility_exit)\n");
   fprintf(fd, "\n");
   fprintf(fd, "\n");
@@ -1935,6 +2619,100 @@ int print_loader_c(facility_t *fac)
 	return 0;
 }
 
+int print_loader_c_user(facility_t *fac)
+{
+	char filename[PATH_MAX];
+	unsigned int filename_size = 0;
+	FILE *fd;
+	dprintf("%s\n", fac->name);
+
+	strcpy(filename, "ltt-facility-loader-");
+	filename_size = strlen(filename);
+	
+	strncat(filename, fac->name, PATH_MAX - filename_size);
+	filename_size = strlen(filename);
+
+	if(fac->arch) {
+		strncat(filename, "_", PATH_MAX - filename_size);
+		filename_size = strlen(filename);
+
+		strncat(filename, fac->arch, PATH_MAX - filename_size);
+		filename_size = strlen(filename);
+	}
+
+	strncat(filename, ".c", PATH_MAX - filename_size);
+	filename_size = strlen(filename);
+	
+
+	fd = fopen(filename, "w");
+	if(fd == NULL) {
+		printf("Error opening file %s for writing : %s\n",
+				filename, strerror(errno));
+		return errno;
+	}
+
+  fprintf(fd, "/*\n");
+	if(!fac->arch)
+	  fprintf(fd, " * ltt-facility-loader-%s.c\n", fac->name);
+	else
+	  fprintf(fd, " * ltt-facility-loader-%s_%s.c\n", fac->name, fac->arch);
+  fprintf(fd, " *\n");
+  fprintf(fd, " * (C) Copyright  2005 - \n");
+  fprintf(fd, " *          Mathieu Desnoyers (mathieu.desnoyers@polymtl.ca)\n");
+  fprintf(fd, " *\n");
+  fprintf(fd, " * Contains the LTT user space facility loader.\n");
+  fprintf(fd, " *\n");
+  fprintf(fd, " */\n");
+  fprintf(fd, "\n");
+  fprintf(fd, "\n");
+  fprintf(fd, "#define LTT_TRACE\n");
+  fprintf(fd, "#include <error.h>\n");
+  fprintf(fd, "#include <stdio.h>\n");
+  fprintf(fd, "#include <ltt/ltt-generic.h>\n");
+	if(!fac->arch)
+  	fprintf(fd, "#include \"ltt-facility-loader-%s.h\"\n", fac->name);
+	else
+	  fprintf(fd, "#include \"ltt-facility-loader-%s_%s.h\"\n",
+				fac->name, fac->arch);
+  fprintf(fd, "\n");
+  fprintf(fd, "static struct user_facility_info facility = {\n");
+  fprintf(fd, "\t.name = LTT_FACILITY_NAME,\n");
+  fprintf(fd, "\t.num_events = LTT_FACILITY_NUM_EVENTS,\n");
+  fprintf(fd, "#ifndef LTT_PACK\n");
+  fprintf(fd, "\t.alignment = sizeof(void*),\n");
+  fprintf(fd, "#else\n");
+  fprintf(fd, "\t.alignment = 0,\n");
+  fprintf(fd, "#endif //LTT_PACK\n");
+  fprintf(fd, "\t.checksum = LTT_FACILITY_CHECKSUM,\n");
+  fprintf(fd, "\t.int_size = sizeof(int),\n");
+  fprintf(fd, "\t.long_size = sizeof(long),\n");
+  fprintf(fd, "\t.pointer_size = sizeof(void*),\n");
+  fprintf(fd, "\t.size_t_size = sizeof(size_t)\n");
+  fprintf(fd, "};\n");
+  fprintf(fd, "\n");
+  fprintf(fd, "static void __attribute__((constructor)) __ltt_user_init(void)\n");
+  fprintf(fd, "{\n");
+  fprintf(fd, "\tint err;\n");
+	fprintf(fd, "#ifdef LTT_SHOW_DEBUG\n");
+  fprintf(fd, "\tprintf(\"LTT : ltt-facility-%s init in userspace\\n\");\n", fac->name);
+	fprintf(fd, "#endif //LTT_SHOW_DEBUG\n");
+  fprintf(fd, "\n");
+  fprintf(fd, "\terr = ltt_register_generic(&LTT_FACILITY_SYMBOL, &facility);\n");
+  fprintf(fd, "\tLTT_FACILITY_CHECKSUM_SYMBOL = LTT_FACILITY_SYMBOL;\n");
+  fprintf(fd, "\t\n");
+  fprintf(fd, "\tif(err) {\n");
+	fprintf(fd, "#ifdef LTT_SHOW_DEBUG\n");
+  fprintf(fd, "\t\tperror(\"Error in ltt_register_generic\");\n");
+	fprintf(fd, "#endif //LTT_SHOW_DEBUG\n");
+  fprintf(fd, "\t}\n");
+  fprintf(fd, "}\n");
+  fprintf(fd, "\n");
+
+	fclose(fd);
+
+	return 0;
+}
+
 
 
 /* open facility */
@@ -2104,12 +2882,18 @@ int main(int argc, char **argv)
 	
 	/* ltt-facility-loader-name.h : facility specific loader info.
 	 * loader_header */
-	err = print_loader_header(fac);
+	if(!fac->user)
+		err = print_loader_header(fac);
+	else
+		err = print_loader_header_user(fac);
 	if(err)	return err;
 
 	/* ltt-facility-loader-name.c : generic faciilty loader
 	 * loader_c */
-	err = print_loader_c(fac);
+	if(!fac->user)
+		err = print_loader_c(fac);
+	else
+		err = print_loader_c_user(fac);
 	if(err)	return err;
 
 	/* close the facility */