#define dprintf(...)
#endif
-
/* Code printing */
void print_tabs(unsigned int tabs, FILE *fd)
fprintf(fd, "\t");
}
-/* Type size checking */
-/* Uses #error in the generated code to signal error and stop the compiler */
-int print_check(int fd);
-
-
-/* Print types */
-int print_types(int fd);
-
-
-/* Print events */
-int print_events(int fd);
-
-
/* print type.
*
* Copied from construct_types_and_fields in LTTV facility.c */
basename_len = strlen(basename);
} else {
/* For a unnamed type, there must be a field name */
- if(basename_len != 0) {
+ if((basename_len != 0)
+ && (basename[basename_len-1] != '_')
+ && (field_name[0] != '\0')) {
strncat(basename, "_", PATH_MAX - basename_len);
basename_len = strlen(basename);
}
fprintf(fd, "%s", floatOutputTypes[getSizeindex(td->size)]);
break;
case POINTER:
- fprintf(fd, "void *");
+ fprintf(fd, "const void *");
break;
case LONG:
fprintf(fd, "long");
fprintf(fd, "off_t");
break;
case STRING:
- fprintf(fd, "char *");
+ fprintf(fd, "const char *");
break;
case ENUM:
fprintf(fd, "enum lttng_%s", basename);
case STRUCT:
fprintf(fd, "struct lttng_%s", basename);
break;
- case UNION:
- fprintf(fd, "union lttng_%s", basename);
+ case UNION:
+ fprintf(fd, "union lttng_%s", basename);
+ break;
+ default:
+ printf("print_type : unknown type\n");
+ return 1;
+ }
+
+ return 0;
+}
+
+/* Print logging function argument */
+int print_arg(type_descriptor_t * td, FILE *fd, unsigned int tabs,
+ char *nest_name, char *field_name)
+{
+ char basename[PATH_MAX];
+ unsigned int basename_len = 0;
+
+ strcpy(basename, nest_name);
+ basename_len = strlen(basename);
+
+ /* For a named type, we use the type_name directly */
+ if(td->type_name != NULL) {
+ strncpy(basename, td->type_name, PATH_MAX);
+ basename_len = strlen(basename);
+ } else {
+ /* For a unnamed type, there must be a field name */
+ if((basename_len != 0)
+ && (basename[basename_len-1] != '_')
+ && (field_name[0] != '\0')) {
+ strncat(basename, "_", PATH_MAX - basename_len);
+ basename_len = strlen(basename);
+ }
+ strncat(basename, field_name, PATH_MAX - basename_len);
+ }
+
+ print_tabs(tabs, fd);
+
+ switch(td->type) {
+ case INT_FIXED:
+ fprintf(fd, "%s", intOutputTypes[getSizeindex(td->size)]);
+ fprintf(fd, "lttng_param_%s", field_name);
+ break;
+ case UINT_FIXED:
+ fprintf(fd, "%s", uintOutputTypes[getSizeindex(td->size)]);
+ fprintf(fd, "lttng_param_%s", field_name);
+ break;
+ case CHAR:
+ fprintf(fd, "signed char");
+ fprintf(fd, " lttng_param_%s", field_name);
+ break;
+ case UCHAR:
+ fprintf(fd, "unsigned char");
+ fprintf(fd, " lttng_param_%s", field_name);
+ break;
+ case SHORT:
+ fprintf(fd, "short");
+ fprintf(fd, " lttng_param_%s", field_name);
+ break;
+ case USHORT:
+ fprintf(fd, "unsigned short");
+ fprintf(fd, " lttng_param_%s", field_name);
+ break;
+ case INT:
+ fprintf(fd, "int");
+ fprintf(fd, " lttng_param_%s", field_name);
+ break;
+ case UINT:
+ fprintf(fd, "unsigned int");
+ fprintf(fd, " lttng_param_%s", field_name);
+ break;
+ case FLOAT:
+ fprintf(fd, "%s", floatOutputTypes[getSizeindex(td->size)]);
+ fprintf(fd, " lttng_param_%s", field_name);
+ break;
+ case POINTER:
+ fprintf(fd, "const void *");
+ fprintf(fd, " lttng_param_%s", field_name);
+ break;
+ case LONG:
+ fprintf(fd, "long");
+ fprintf(fd, " lttng_param_%s", field_name);
+ break;
+ case ULONG:
+ fprintf(fd, "unsigned long");
+ fprintf(fd, " lttng_param_%s", field_name);
+ break;
+ case SIZE_T:
+ fprintf(fd, "size_t");
+ fprintf(fd, " lttng_param_%s", field_name);
+ break;
+ case SSIZE_T:
+ fprintf(fd, "ssize_t");
+ fprintf(fd, " lttng_param_%s", field_name);
+ break;
+ case OFF_T:
+ fprintf(fd, "off_t");
+ fprintf(fd, " lttng_param_%s", field_name);
+ break;
+ case STRING:
+ fprintf(fd, "const char *");
+ fprintf(fd, " lttng_param_%s", field_name);
+ break;
+ case ENUM:
+ fprintf(fd, "enum lttng_%s", basename);
+ fprintf(fd, " lttng_param_%s", field_name);
+ break;
+ case ARRAY:
+ fprintf(fd, "lttng_array_%s", basename);
+ fprintf(fd, " lttng_param_%s", field_name);
+ break;
+ case SEQUENCE:
+ fprintf(fd, "lttng_sequence_%s *", basename);
+ fprintf(fd, " lttng_param_%s", field_name);
+ break;
+ case STRUCT:
+ fprintf(fd, "struct lttng_%s *", basename);
+ fprintf(fd, " lttng_param_%s", field_name);
+ break;
+ case UNION:
+ fprintf(fd, "union lttng_%s *", basename);
+ fprintf(fd, " lttng_param_%s", field_name);
+ break;
+ default:
+ printf("print_type : unknown type\n");
+ return 1;
+ }
+
+ return 0;
+}
+
+
+/* Does the type has a fixed size ? (as know from the compiler)
+ *
+ * 1 : fixed size
+ * 0 : variable length
+ */
+int has_type_fixed_size(type_descriptor_t *td)
+{
+ switch(td->type) {
+ case INT_FIXED:
+ case UINT_FIXED:
+ case CHAR:
+ case UCHAR:
+ case SHORT:
+ case USHORT:
+ case INT:
+ case UINT:
+ case FLOAT:
+ case POINTER:
+ case LONG:
+ case ULONG:
+ case SIZE_T:
+ case SSIZE_T:
+ case OFF_T:
+ case ENUM:
+ case UNION: /* The union must have fixed size children. Must be checked by
+ the parser */
+ return 1;
+ break;
+ case STRING:
+ case SEQUENCE:
+ return 0;
+ break;
+ case STRUCT:
+ {
+ int has_type_fixed = 0;
+ for(unsigned int i=0;i<td->fields.position;i++){
+ field_t *field = (field_t*)(td->fields.array[i]);
+ type_descriptor_t *type = field->type;
+
+ has_type_fixed = has_type_fixed_size(type);
+ if(!has_type_fixed) return 0;
+ }
+ return 1;
+ }
+ break;
+ case ARRAY:
+ assert(td->size >= 0);
+ return has_type_fixed_size(((field_t*)td->fields.array[0])->type);
+ break;
+ case NONE:
+ printf("There is a type defined to NONE : bad.\n");
+ assert(0);
+ break;
+ }
+ return 0; //make gcc happy.
+}
+
+
+
+
+
+/* print type declaration.
+ *
+ * Copied from construct_types_and_fields in LTTV facility.c */
+
+int print_type_declaration(type_descriptor_t * td, FILE *fd, unsigned int tabs,
+ char *nest_name, char *field_name)
+{
+ char basename[PATH_MAX];
+ unsigned int basename_len = 0;
+
+ strncpy(basename, nest_name, PATH_MAX);
+ basename_len = strlen(basename);
+
+ /* For a named type, we use the type_name directly */
+ if(td->type_name != NULL) {
+ strncpy(basename, td->type_name, PATH_MAX);
+ basename_len = strlen(basename);
+ } else {
+ /* For a unnamed type, there must be a field name, except for
+ * the array. */
+ if((basename_len != 0)
+ && (basename[basename_len-1] != '_'
+ && (field_name[0] != '\0'))) {
+ strncat(basename, "_", PATH_MAX - basename_len);
+ basename_len = strlen(basename);
+ }
+ strncat(basename, field_name, PATH_MAX - basename_len);
+ }
+
+ switch(td->type) {
+ case ENUM:
+ fprintf(fd, "enum lttng_%s", basename);
+ fprintf(fd, " {\n");
+ for(unsigned int i=0;i<td->labels.position;i++){
+ print_tabs(1, fd);
+ fprintf(fd, "LTTNG_%s", ((char*)(td->labels.array[i])));
+ fprintf(fd, ",\n");
+ }
+ fprintf(fd, "};\n");
+ fprintf(fd, "\n");
+ break;
+
+ case ARRAY:
+ dprintf("%s\n", basename);
+ assert(td->size >= 0);
+ if(((field_t*)td->fields.array[0])->type->type_name == NULL) {
+ /* Not a named nested type : we must print its declaration first */
+ if(print_type_declaration(((field_t*)td->fields.array[0])->type,
+ fd, 0, basename, "")) return 1;
+ }
+ fprintf(fd, "#define LTTNG_ARRAY_SIZE_%s %zu\n", basename,
+ td->size);
+ fprintf(fd, "typedef ");
+ if(print_type(((field_t*)td->fields.array[0])->type,
+ fd, tabs, basename, "")) return 1;
+ fprintf(fd, " lttng_array_%s[LTTNG_ARRAY_SIZE_%s];\n", basename,
+ basename);
+ fprintf(fd, "\n");
+ break;
+ case SEQUENCE:
+ /* We assume that the sequence length type does not need to be declared.
+ */
+ if(((field_t*)td->fields.array[1])->type->type_name == NULL) {
+ /* Not a named nested type : we must print its declaration first */
+ if(print_type_declaration(((field_t*)td->fields.array[1])->type,
+ fd, 0, basename, "")) return 1;
+ }
+ fprintf(fd, "typedef struct lttng_sequence_%s lttng_sequence_%s;\n",
+ basename,
+ basename);
+ fprintf(fd, "struct lttng_sequence_%s", basename);
+ fprintf(fd, " {\n");
+ print_tabs(1, fd);
+ if(print_type(((field_t*)td->fields.array[0])->type,
+ fd, tabs, basename, "")) return 1;
+ fprintf(fd, " len;\n");
+ print_tabs(1, fd);
+ fprintf(fd, "const ");
+ if(print_type(((field_t*)td->fields.array[1])->type,
+ fd, tabs, basename, "")) return 1;
+ fprintf(fd, " *array;\n");
+ fprintf(fd, "};\n"); /* We do not LTT_ALIGN, because we never copy
+ it to the buffer directly. */
+ fprintf(fd, "\n");
+ break;
+
+ case STRUCT:
+ for(unsigned int i=0;i<td->fields.position;i++){
+ field_t *field = (field_t*)(td->fields.array[i]);
+ type_descriptor_t *type = field->type;
+ if(type->type_name == NULL) {
+ /* Not a named nested type : we must print its declaration first */
+ if(print_type_declaration(type,
+ fd, 0, basename, field->name)) return 1;
+ }
+ }
+ fprintf(fd, "struct lttng_%s", basename);
+ fprintf(fd, " {\n");
+ for(unsigned int i=0;i<td->fields.position;i++){
+ field_t *field = (field_t*)(td->fields.array[i]);
+ type_descriptor_t *type = field->type;
+ print_tabs(1, fd);
+ if(print_type(type, fd, tabs, basename, field->name)) return 1;
+ fprintf(fd, " ");
+ fprintf(fd, "%s", field->name);
+ fprintf(fd, ";\n");
+ }
+ fprintf(fd, "} LTT_ALIGN;\n");
+ fprintf(fd, "\n");
+ break;
+ case UNION:
+ for(unsigned int i=0;i<td->fields.position;i++){
+ field_t *field = (field_t*)(td->fields.array[i]);
+ type_descriptor_t *type = field->type;
+ if(type->type_name == NULL) {
+ /* Not a named nested type : we must print its declaration first */
+ if(print_type_declaration(type,
+ fd, 0, basename, field->name)) return 1;
+ }
+ }
+ fprintf(fd, "union lttng_%s", basename);
+ fprintf(fd, " {\n");
+ for(unsigned i=0;i<td->fields.position;i++){
+ field_t *field = (field_t*)(td->fields.array[i]);
+ type_descriptor_t *type = field->type;
+ print_tabs(1, fd);
+ if(print_type(type, fd, tabs, basename, field->name)) return 1;
+ fprintf(fd, " ");
+ fprintf(fd, "%s", field->name);
+ fprintf(fd, ";\n");
+ }
+ fprintf(fd, "} LTT_ALIGN;\n");
+ fprintf(fd, "\n");
+ break;
+ default:
+ dprintf("print_type_declaration : unknown type or nothing to declare.\n");
+ break;
+ }
+
+ return 0;
+}
+
+
+/* print type alignment.
+ *
+ * Copied from construct_types_and_fields in LTTV facility.c
+ *
+ * basename is the name which identifies the type (along with a prefix
+ * (possibly)). */
+
+int print_type_alignment(type_descriptor_t * td, FILE *fd, unsigned int tabs,
+ char *nest_name, char *field_name, char *obj_prefix)
+{
+ char basename[PATH_MAX];
+ unsigned int basename_len = 0;
+
+ strncpy(basename, nest_name, PATH_MAX);
+ basename_len = strlen(basename);
+
+ /* For a named type, we use the type_name directly */
+ if(td->type_name != NULL) {
+ strncpy(basename, td->type_name, PATH_MAX);
+ basename_len = strlen(basename);
+ } else {
+ /* For a unnamed type, there must be a field name, except for
+ * the array. */
+ if((basename_len != 0)
+ && (basename[basename_len-1] != '_'
+ && field_name != NULL
+ && (field_name[0] != '\0'))) {
+ strncat(basename, "_", PATH_MAX - basename_len);
+ basename_len = strlen(basename);
+ }
+ if(field_name != NULL)
+ strncat(basename, field_name, PATH_MAX - basename_len);
+ }
+
+ if(field_name[0] == '\0') {
+ /* We are in a write function : it's the obj that we must align. */
+ switch(td->type) {
+ case SEQUENCE:
+ fprintf(fd, "lttng_get_alignment_sequence_%s(%s)", basename,
+ obj_prefix);
+ break;
+ case STRUCT:
+ fprintf(fd, "lttng_get_alignment_struct_%s(%s)", basename,
+ obj_prefix);
+ break;
+ case UNION:
+ fprintf(fd, "lttng_get_alignment_union_%s(%s)", basename,
+ obj_prefix);
+ break;
+ case ARRAY:
+ fprintf(fd, "lttng_get_alignment_array_%s(%s)", basename,
+ obj_prefix);
+ case STRING:
+ fprintf(fd, "sizeof(char)");
+ break;
+ default:
+ printf("error : type unexpected\n");
+ return 1;
+ break;
+ }
+ } else {
+
+ switch(td->type) {
+ case INT_FIXED:
+ case UINT_FIXED:
+ case CHAR:
+ case UCHAR:
+ case SHORT:
+ case USHORT:
+ case INT:
+ case UINT:
+ case FLOAT:
+ case POINTER:
+ case LONG:
+ case ULONG:
+ case SIZE_T:
+ case SSIZE_T:
+ case OFF_T:
+ case ENUM:
+ fprintf(fd, "sizeof(");
+ if(print_type(td, fd, 0, basename, "")) return 1;
+ fprintf(fd, ")");
+ break;
+ case STRING:
+ fprintf(fd, "sizeof(char)");
+ break;
+ case SEQUENCE:
+ fprintf(fd, "lttng_get_alignment_sequence_%s(&%s%s)", basename,
+ obj_prefix, field_name);
+ break;
+ case STRUCT:
+ fprintf(fd, "lttng_get_alignment_struct_%s(&%s%s)", basename,
+ obj_prefix, field_name);
+ break;
+ case UNION:
+ fprintf(fd, "lttng_get_alignment_union_%s(&%s%s)", basename,
+ obj_prefix, field_name);
+ break;
+ case ARRAY:
+ fprintf(fd, "lttng_get_alignment_array_%s(%s%s)", basename,
+ obj_prefix, field_name);
+ break;
+ case NONE:
+ printf("error : type NONE unexpected\n");
+ return 1;
+ break;
+ }
+ }
+
+ return 0;
+}
+
+/* print type write.
+ *
+ * Copied from construct_types_and_fields in LTTV facility.c
+ *
+ * basename is the name which identifies the type (along with a prefix
+ * (possibly)). */
+
+int print_type_write(type_descriptor_t * td, FILE *fd, unsigned int tabs,
+ char *nest_name, char *field_name, char *obj_prefix, int get_ptr)
+{
+ char basename[PATH_MAX];
+ unsigned int basename_len = 0;
+ char get_ptr_char[2] = "";
+
+ strncpy(basename, nest_name, PATH_MAX);
+ basename_len = strlen(basename);
+
+ /* For a named type, we use the type_name directly */
+ if(td->type_name != NULL) {
+ strncpy(basename, td->type_name, PATH_MAX);
+ basename_len = strlen(basename);
+ } else {
+ /* For a unnamed type, there must be a field name, except for
+ * the array. */
+ if((basename_len != 0)
+ && (basename[basename_len-1] != '_'
+ && (field_name[0] != '\0'))) {
+ strncat(basename, "_", PATH_MAX - basename_len);
+ basename_len = strlen(basename);
+ }
+ strncat(basename, field_name, PATH_MAX - basename_len);
+ }
+
+ if(get_ptr) {
+ strcpy(get_ptr_char, "&");
+ }
+
+ switch(td->type) {
+ case INT_FIXED:
+ case UINT_FIXED:
+ case CHAR:
+ case UCHAR:
+ case SHORT:
+ case USHORT:
+ case INT:
+ case UINT:
+ case FLOAT:
+ case POINTER:
+ case LONG:
+ case ULONG:
+ case SIZE_T:
+ case SSIZE_T:
+ case OFF_T:
+ case ENUM:
+ print_tabs(tabs, fd);
+ fprintf(fd, "size = ");
+ fprintf(fd, "sizeof(");
+ if(print_type(td, fd, 0, basename, "")) return 1;
+ fprintf(fd, ");\n");
+ print_tabs(tabs, fd);
+ fprintf(fd, "size += ltt_align(*to+*len, size) + size;\n");
+ print_tabs(tabs, fd);
+ fprintf(fd, "*len += size;");
+ break;
+ 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);
+ 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);
+ 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);
+ 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);
+ 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);
+ break;
+ case NONE:
+ printf("Error : type NONE unexpected\n");
+ return 1;
+ break;
+ }
+
+ return 0;
+}
+
+/* print need local vars ?.
+ *
+ * Copied from print_type_write
+ *
+ * Does the type_write call needs local size and from variables ?
+ * return value : 1 yes, 0 no.
+ */
+
+int has_type_local(type_descriptor_t * td)
+{
+ switch(td->type) {
+ case INT_FIXED:
+ case UINT_FIXED:
+ case CHAR:
+ case UCHAR:
+ case SHORT:
+ case USHORT:
+ case INT:
+ case UINT:
+ case FLOAT:
+ case POINTER:
+ case LONG:
+ case ULONG:
+ case SIZE_T:
+ case SSIZE_T:
+ case OFF_T:
+ case ENUM:
+ return 1;
+ break;
+ case STRING:
+ case SEQUENCE:
+ case STRUCT:
+ case UNION:
+ case ARRAY:
+ return 0;
+ break;
+ case NONE:
+ printf("Error : type NONE unexpected\n");
+ return 1;
+ break;
+ }
+
+ return 0;
+}
+
+
+
+/* print type alignment function.
+ *
+ * Copied from construct_types_and_fields in LTTV facility.c
+ *
+ * basename is the name which identifies the type (along with a prefix
+ * (possibly)). */
+
+int print_type_alignment_fct(type_descriptor_t * td, FILE *fd,
+ unsigned int tabs,
+ char *nest_name, char *field_name)
+{
+ char basename[PATH_MAX];
+ unsigned int basename_len = 0;
+
+ strncpy(basename, nest_name, PATH_MAX);
+ basename_len = strlen(basename);
+
+ /* For a named type, we use the type_name directly */
+ if(td->type_name != NULL) {
+ strncpy(basename, td->type_name, PATH_MAX);
+ basename_len = strlen(basename);
+ } else {
+ /* For a unnamed type, there must be a field name, except for
+ * the array. */
+ if((basename_len != 0)
+ && (basename[basename_len-1] != '_'
+ && (field_name[0] != '\0'))) {
+ strncat(basename, "_", PATH_MAX - basename_len);
+ basename_len = strlen(basename);
+ }
+ strncat(basename, field_name, PATH_MAX - basename_len);
+ }
+
+ switch(td->type) {
+ case SEQUENCE:
+ /* Function header */
+ fprintf(fd, "static inline size_t lttng_get_alignment_sequence_%s(\n",
+ basename);
+ print_tabs(2, fd);
+ if(print_type(td, fd, 0, basename, "")) return 1;
+ fprintf(fd, " *obj)\n");
+ fprintf(fd, "{\n");
+ print_tabs(1, fd);
+ fprintf(fd, "size_t align=0, localign;");
+ fprintf(fd, "\n");
+ print_tabs(1, fd);
+ fprintf(fd, "localign = ");
+ if(print_type_alignment(((field_t*)td->fields.array[0])->type,
+ fd, 0, basename, "len", "obj->")) return 1;
+ fprintf(fd, ";\n");
+ print_tabs(1, fd);
+ fprintf(fd, "align = max(align, localign);\n");
+ fprintf(fd, "\n");
+ print_tabs(1, fd);
+ fprintf(fd, "localign = ");
+ if(print_type_alignment(((field_t*)td->fields.array[1])->type,
+ fd, 0, basename, "array[0]", "obj->")) return 1;
+ fprintf(fd, ";\n");
+ print_tabs(1, fd);
+ fprintf(fd, "align = max(align, localign);\n");
+ fprintf(fd, "\n");
+ print_tabs(1, fd);
+ fprintf(fd, "return align;\n");
+ break;
+ case STRUCT:
+ /* Function header */
+ fprintf(fd, "static inline size_t lttng_get_alignment_struct_%s(\n",
+ basename);
+ print_tabs(2, fd);
+ if(print_type(td, fd, 0, basename, "")) return 1;
+ fprintf(fd, " *obj)\n");
+ fprintf(fd, "{\n");
+ print_tabs(1, fd);
+ fprintf(fd, "size_t align=0, localign;");
+ fprintf(fd, "\n");
+ for(unsigned int i=0;i<td->fields.position;i++){
+ field_t *field = (field_t*)(td->fields.array[i]);
+ type_descriptor_t *type = field->type;
+ print_tabs(1, fd);
+ fprintf(fd, "localign = ");
+ if(print_type_alignment(type, fd, 0, basename, field->name, "obj->"))
+ return 1;
+ fprintf(fd, ";\n");
+ print_tabs(1, fd);
+ fprintf(fd, "align = max(align, localign);\n");
+ fprintf(fd, "\n");
+ }
+ print_tabs(1, fd);
+ fprintf(fd, "return align;\n");
+
+ break;
+ case UNION:
+ /* Function header */
+ fprintf(fd, "static inline size_t lttng_get_alignment_union_%s(\n",
+ basename);
+ print_tabs(2, fd);
+ if(print_type(td, fd, 0, basename, "")) return 1;
+ fprintf(fd, " *obj)\n");
+ fprintf(fd, "{\n");
+ print_tabs(1, fd);
+ fprintf(fd, "size_t align=0, localign;");
+ fprintf(fd, "\n");
+ for(unsigned int i=0;i<td->fields.position;i++){
+ field_t *field = (field_t*)(td->fields.array[i]);
+ type_descriptor_t *type = field->type;
+ print_tabs(1, fd);
+ fprintf(fd, "localign = ");
+ if(print_type_alignment(type, fd, 0, basename, field->name, "obj->"))
+ return 1;
+ fprintf(fd, ";\n");
+ print_tabs(1, fd);
+ fprintf(fd, "align = max(align, localign);\n");
+ fprintf(fd, "\n");
+ }
+ print_tabs(1, fd);
+ fprintf(fd, "return align;\n");
+
+ break;
+ case ARRAY:
+ /* Function header */
+ fprintf(fd, "static inline size_t lttng_get_alignment_array_%s(\n",
+ basename);
+ print_tabs(2, fd);
+ if(print_type(td, fd, 0, basename, "")) return 1;
+ fprintf(fd, " obj)\n");
+ fprintf(fd, "{\n");
+ print_tabs(1, fd);
+ fprintf(fd, "return \n");
+ if(print_type_alignment(((field_t*)td->fields.array[0])->type,
+ fd, 0, basename, "", "obj[0]"))
+ return 1;
+ fprintf(fd, ";\n");
+ break;
+ default:
+ dprintf("print_type_alignment_fct : type has no alignment function.\n");
+ return 0;
break;
- default:
- printf("print_type : unknown type\n");
- return 1;
}
+
+ /* Function footer */
+ fprintf(fd, "}\n");
+ fprintf(fd, "\n");
+
return 0;
}
-/* print type declaration.
+/* print type write function.
*
- * Copied from construct_types_and_fields in LTTV facility.c */
+ * Copied from construct_types_and_fields in LTTV facility.c
+ *
+ * basename is the name which identifies the type (along with a prefix
+ * (possibly)). */
-int print_type_declaration(type_descriptor_t * td, FILE *fd, unsigned int tabs,
+int print_type_write_fct(type_descriptor_t * td, FILE *fd, unsigned int tabs,
char *nest_name, char *field_name)
{
char basename[PATH_MAX];
unsigned int basename_len = 0;
- strcpy(basename, nest_name);
+ strncpy(basename, nest_name, PATH_MAX);
basename_len = strlen(basename);
/* For a named type, we use the type_name directly */
strncpy(basename, td->type_name, PATH_MAX);
basename_len = strlen(basename);
} else {
- /* For a unnamed type, there must be a field name */
- if(basename_len != 0) {
+ /* For a unnamed type, there must be a field name, except for
+ * the array. */
+ if((basename_len != 0)
+ && (basename[basename_len-1] != '_'
+ && (field_name[0] != '\0'))) {
strncat(basename, "_", PATH_MAX - basename_len);
basename_len = strlen(basename);
}
strncat(basename, field_name, PATH_MAX - basename_len);
- dprintf("%s\n", field_name);
}
-
+
switch(td->type) {
- case ENUM:
- fprintf(fd, "enum lttng_%s", basename);
- fprintf(fd, " {\n");
- for(unsigned int i=0;i<td->labels.position;i++){
- print_tabs(1, fd);
- fprintf(fd, "LTTNG_%s", ((char*)(td->labels.array[i])));
- fprintf(fd, ",\n");
- }
- fprintf(fd, "};\n");
- fprintf(fd, "\n");
+ case SEQUENCE:
+ case STRUCT:
+ case UNION:
+ case ARRAY:
+ case STRING:
+ break;
+ default:
+ dprintf("print_type_write_fct : type has no write function.\n");
+ return 0;
+ break;
+ }
+
+ /* Print header */
+ switch(td->type) {
+ case SEQUENCE:
+ fprintf(fd, "static inline void lttng_write_sequence_%s(\n",
+ basename);
+ break;
+ case STRUCT:
+ fprintf(fd, "static inline void lttng_write_struct_%s(\n", basename);
+ break;
+ case UNION:
+ fprintf(fd, "static inline void lttng_write_union_%s(\n", basename);
+ break;
+ case ARRAY:
+ fprintf(fd, "static inline void lttng_write_array_%s(\n", basename);
+ break;
+ case STRING:
+ fprintf(fd, "static inline void lttng_write_string_%s(\n", basename);
+ break;
+ default:
+ printf("print_type_write_fct : type has no write function.\n");
break;
+ }
+
+ print_tabs(2, fd);
+ fprintf(fd, "void *buffer,\n");
+ print_tabs(2, fd);
+ fprintf(fd, "size_t *to_base,\n");
+ print_tabs(2, fd);
+ fprintf(fd, "size_t *to,\n");
+ print_tabs(2, fd);
+ fprintf(fd, "const void **from,\n");
+ print_tabs(2, fd);
+ fprintf(fd, "size_t *len,\n");
+ print_tabs(2, fd);
+ if(print_type(td, fd, 0, basename, "")) return 1;
+ switch(td->type) {
+ case SEQUENCE:
+ fprintf(fd, " *obj)\n");
+ break;
+ case STRUCT:
+ fprintf(fd, " *obj)\n");
+ break;
+ case UNION:
+ fprintf(fd, " *obj)\n");
+ break;
case ARRAY:
- assert(td->size >= 0);
- if(td->nested_type->type_name == NULL) {
- /* Not a named nested type : we must print its declaration first */
- if(print_type_declaration(td->nested_type,
- fd, 0, basename, "")) return 1;
- }
- fprintf(fd, "#define LTTNG_ARRAY_SIZE_%s %llu\n", basename,
- td->size);
- if(print_type(td->nested_type, fd, tabs, basename, "")) return 1;
- fprintf(fd, " lttng_array_%s[LTTNG_ARRAY_SIZE_%s];\n", basename,
- basename);
- fprintf(fd, "\n");
+ fprintf(fd, " obj)\n");
+ break;
+ case STRING:
+ fprintf(fd, " obj)\n");
+ break;
+ default:
+ printf("print_type_write_fct : type has no write function.\n");
break;
+ }
+
+ fprintf(fd, "{\n");
+
+
+ if(td->fields.position > 0) {
+ int has_type_fixed = 0;
+ for(unsigned int i=0;i<td->fields.position;i++){
+ /* Search for at least one child with fixed size. It means
+ * we need local variables.*/
+ field_t *field = (field_t*)(td->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) {
+ print_tabs(1, fd);
+ fprintf(fd, "size_t size;\n");
+ }
+ }
+
+ print_tabs(1, fd);
+ fprintf(fd, "size_t align;\n");
+ fprintf(fd, "\n");
+
+ switch(td->type) {
case SEQUENCE:
- if(td->nested_type->type_name == NULL) {
- /* Not a named nested type : we must print its declaration first */
- if(print_type_declaration(td->nested_type,
- fd, 0, basename, "")) return 1;
- }
- fprintf(fd, "typedef struct lttng_sequence_%s lttng_sequence_%s;\n",
- basename,
- basename);
- fprintf(fd, "struct lttng_sequence_%s", basename);
- fprintf(fd, " {\n");
+ case STRING:
print_tabs(1, fd);
- fprintf(fd, "unsigned int len;\n");
+ fprintf(fd, "/* Flush pending memcpy */\n");
print_tabs(1, fd);
- if(print_type(td->nested_type, fd, tabs, basename, "")) return 1;
- fprintf(fd, " *array;\n");
- fprintf(fd, "};\n");
+ fprintf(fd, "if(*len != 0) {\n");
+ print_tabs(2, fd);
+ fprintf(fd, "if(buffer != NULL)\n");
+ print_tabs(3, fd);
+ fprintf(fd, "memcpy(buffer+*to_base+*to, *from, *len);\n");
+ print_tabs(1, fd);
+ fprintf(fd, "}\n");
+ print_tabs(1, fd);
+ fprintf(fd, "*to += *len;\n");
+ print_tabs(1, fd);
+ fprintf(fd, "*len = 0;\n");
fprintf(fd, "\n");
- break;
+ break;
+ case STRUCT:
+ case UNION:
+ case ARRAY:
+ break;
+ default:
+ printf("print_type_write_fct : type has no write function.\n");
+ break;
+ }
+
+ print_tabs(1, fd);
+ fprintf(fd, "align = ");
+ if(print_type_alignment(td, fd, 0, basename, "", "obj")) return 1;
+ fprintf(fd, ";\n");
+ fprintf(fd, "\n");
+ print_tabs(1, fd);
+ fprintf(fd, "if(*len == 0) {\n");
+ print_tabs(2, fd);
+ fprintf(fd, "*to += ltt_align(*to, align); /* align output */\n");
+ print_tabs(1, fd);
+ fprintf(fd, "} else {\n");
+ print_tabs(2, fd);
+ fprintf(fd, "*len += ltt_align(*to+*len, align); /* alignment, ok to do a memcpy of it */\n");
+ print_tabs(1, fd);
+ fprintf(fd, "}\n");
+ fprintf(fd, "\n");
- case STRUCT:
- for(unsigned int i=0;i<td->fields.position;i++){
- field_t *field = (field_t*)(td->fields.array[i]);
- type_descriptor_t *type = field->type;
- if(type->type_name == NULL) {
- /* Not a named nested type : we must print its declaration first */
- if(print_type_declaration(type,
- fd, 0, basename, field->name)) return 1;
- }
- }
- fprintf(fd, "struct lttng_%s", basename);
- fprintf(fd, " {\n");
- for(unsigned int i=0;i<td->fields.position;i++){
- field_t *field = (field_t*)(td->fields.array[i]);
- type_descriptor_t *type = field->type;
+ /* First, check if the type has a fixed size. If it is the case, then the size
+ * to write is know by the compiler : simply use a sizeof() */
+ if(has_type_fixed_size(td)) {
+ print_tabs(1, fd);
+ fprintf(fd, "/* Contains only fixed size fields : use compiler sizeof() */\n");
+ fprintf(fd, "\n");
+ print_tabs(1, fd);
+ fprintf(fd, "size = 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. */
+ print_tabs(1, fd);
+ fprintf(fd, "/* Contains variable sized fields : must explode the structure */\n");
+ fprintf(fd, "\n");
+
+ switch(td->type) {
+ case SEQUENCE:
print_tabs(1, fd);
- if(print_type(type, fd, tabs, basename, field->name)) return 1;
- fprintf(fd, " ");
- fprintf(fd, "%s", field->name);
- fprintf(fd, ";\n");
- }
- fprintf(fd, "};\n");
- fprintf(fd, "\n");
- break;
- case UNION:
- /* TODO : Do not allow variable length fields in a union */
- for(unsigned int i=0;i<td->fields.position;i++){
- field_t *field = (field_t*)(td->fields.array[i]);
- type_descriptor_t *type = field->type;
- if(type->type_name == NULL) {
- /* Not a named nested type : we must print its declaration first */
- if(print_type_declaration(type,
- fd, 0, basename, field->name)) return 1;
+ fprintf(fd, "/* Copy members */\n");
+// print_tabs(1, fd);
+// fprintf(fd, "size = sizeof(\n");
+ if(print_type_write(((field_t*)td->fields.array[0])->type,
+ fd, 1, basename, "len", "obj->", 1)) return 1;
+ fprintf(fd, "\n");
+// fprintf(fd, ");\n");
+// print_tabs(1, fd);
+// fprintf(fd, "*to += ltt_align(*to, size);\n");
+ print_tabs(1, fd);
+ fprintf(fd, "if(buffer != NULL)\n");
+ print_tabs(2, fd);
+ fprintf(fd, "memcpy(buffer+*to_base+*to, &obj->len, size);\n");
+ print_tabs(1, fd);
+ fprintf(fd, "*to += size;\n");
+ fprintf(fd, "\n");
+
+ /* Write the child : varlen child or not ? */
+ if(has_type_fixed_size(((field_t*)td->fields.array[1])->type)) {
+ /* Fixed size len child : use a multiplication of its size */
+// print_tabs(1, fd);
+// fprintf(fd, "size = sizeof(\n");
+ if(print_type_write(((field_t*)td->fields.array[1])->type,
+ fd, 1, basename, "array[0]", "obj->", 1)) return 1;
+// fprintf(fd, ");\n");
+// print_tabs(1, fd);
+ fprintf(fd, "*to += ltt_align(*to, size);\n");
+ print_tabs(1, fd);
+ fprintf(fd, "size = obj->len * size;\n");
+ print_tabs(1, fd);
+ fprintf(fd, "if(buffer != NULL)\n");
+ print_tabs(2, fd);
+ fprintf(fd, "memcpy(buffer+*to_base+*to, obj->array, size);\n");
+ print_tabs(1, fd);
+ fprintf(fd, "*to += size;\n");
+ fprintf(fd, "\n");
+ } else {
+ print_tabs(1, fd);
+ fprintf(fd, "/* Variable length child : iter. */\n");
+ print_tabs(1, fd);
+ fprintf(fd, "for(unsigned int i=0; i<obj->len; i++) {\n");
+ if(print_type_write(((field_t*)td->fields.array[1])->type,
+ fd, 2, basename, "array[i]", "obj->", 1)) return 1;
+ print_tabs(1, fd);
+ fprintf(fd, "}\n");
}
- }
- fprintf(fd, "union lttng_%s", basename);
- fprintf(fd, " {\n");
- for(unsigned i=0;i<td->fields.position;i++){
- field_t *field = (field_t*)(td->fields.array[i]);
- type_descriptor_t *type = field->type;
+ fprintf(fd, "\n");
print_tabs(1, fd);
- if(print_type(type, fd, tabs, basename, field->name)) return 1;
- fprintf(fd, " ");
- fprintf(fd, "%s", field->name);
- fprintf(fd, ";\n");
- }
- fprintf(fd, "};\n");
- fprintf(fd, "\n");
- break;
- default:
- dprintf("print_type_declaration : unknown type or nothing to declare.\n");
- break;
+ fprintf(fd, "/* Realign the *to_base on arch size, set *to to 0 */\n");
+ print_tabs(1, fd);
+ fprintf(fd, "*to = ltt_align(*to, sizeof(void *));\n");
+ print_tabs(1, fd);
+ fprintf(fd, "*to_base = *to_base+*to;\n");
+ print_tabs(1, fd);
+ fprintf(fd, "*to = 0;\n");
+ fprintf(fd, "\n");
+ print_tabs(1, fd);
+ fprintf(fd, "/* Put source *from just after the C sequence */\n");
+ print_tabs(1, fd);
+ fprintf(fd, "*from = obj+1;\n");
+ break;
+ case STRING:
+ print_tabs(1, fd);
+ fprintf(fd, "size = strlen(obj) + 1; /* Include final NULL char. */\n");
+ print_tabs(1, fd);
+ fprintf(fd, "if(buffer != NULL)\n");
+ print_tabs(2, fd);
+ fprintf(fd, "memcpy(buffer+*to_base+*to, obj, size);\n");
+ print_tabs(1, fd);
+ fprintf(fd, "*to += size;\n");
+ fprintf(fd, "\n");
+ print_tabs(1, fd);
+ fprintf(fd, "/* Realign the *to_base on arch size, set *to to 0 */\n");
+ print_tabs(1, fd);
+ fprintf(fd, "*to = ltt_align(*to, sizeof(void *));\n");
+ print_tabs(1, fd);
+ fprintf(fd, "*to_base = *to_base+*to;\n");
+ print_tabs(1, fd);
+ fprintf(fd, "*to = 0;\n");
+ fprintf(fd, "\n");
+ print_tabs(1, fd);
+ fprintf(fd, "/* Put source *from just after the C string */\n");
+ print_tabs(1, fd);
+ fprintf(fd, "*from += size;\n");
+ break;
+ case STRUCT:
+ for(unsigned int i=0;i<td->fields.position;i++){
+ field_t *field = (field_t*)(td->fields.array[i]);
+ type_descriptor_t *type = field->type;
+ if(print_type_write(type,
+ fd, 1, basename, field->name, "obj->", 1)) return 1;
+ fprintf(fd, "\n");
+ }
+ break;
+ case UNION:
+ printf("ERROR : A union CANNOT contain a variable size child.\n");
+ return 1;
+ break;
+ case ARRAY:
+ /* Write the child : varlen child or not ? */
+ if(has_type_fixed_size(((field_t*)td->fields.array[0])->type)) {
+ /* Error : if an array has a variable size, then its child must also
+ * have a variable size. */
+ assert(0);
+ } else {
+ print_tabs(1, fd);
+ fprintf(fd, "/* Variable length child : iter. */\n");
+ print_tabs(1, fd);
+ fprintf(fd, "for(unsigned int i=0; i<LTTNG_ARRAY_SIZE_%s; i++) {\n", basename);
+ if(print_type_write(((field_t*)td->fields.array[0])->type,
+ fd, 2, basename, "", "obj->array[i]", 1)) return 1;
+ print_tabs(1, fd);
+ fprintf(fd, "}\n");
+ }
+ break;
+ default:
+ printf("print_type_write_fct : type has no write function.\n");
+ break;
+ }
+
+
}
+
+ /* Function footer */
+ fprintf(fd, "}\n");
+ fprintf(fd, "\n");
return 0;
}
+
+
/* Print the logging function of an event. This is the core of genevent */
-int print_event_logging_function(char *basename, event_t *event, FILE *fd)
+int print_event_logging_function(char *basename, facility_t *fac,
+ event_t *event, FILE *fd)
{
fprintf(fd, "static inline void trace_%s(\n", basename);
+ int has_argument = 0;
+ int has_type_fixed = 0;
+
+ /* Does it support per trace tracing ? */
+ if(event->per_trace) {
+ print_tabs(2, fd);
+ fprintf(fd, "struct ltt_trace_struct *dest_trace");
+ has_argument = 1;
+ }
+
+ /* Does it support per tracefile tracing ? */
+ if(event->per_tracefile) {
+ if(has_argument) {
+ fprintf(fd, ",");
+ fprintf(fd, "\n");
+ }
+ fprintf(fd, "unsigned int tracefile_index");
+ has_argument = 1;
+ }
+
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;
- print_tabs(2, fd);
- if(print_type(t, fd, 0, basename, f->name)) return 1;
- fprintf(fd, " %s", f->name);
- if(j < event->fields.position-1) {
+ if(has_argument) {
fprintf(fd, ",");
fprintf(fd, "\n");
}
+ if(print_arg(t, fd, 2, basename, f->name)) return 1;
+ has_argument = 1;
}
- if(event->fields.position == 0) {
+ if(!has_argument) {
print_tabs(2, fd);
fprintf(fd, "void");
}
fprintf(fd,")\n");
- fprintf(fd, "#ifndef CONFIG_LTT\n");
+ fprintf(fd,
+ "#if (!defined(CONFIG_LTT) || !defined(CONFIG_LTT_FACILITY_%s))\n",
+ fac->capname);
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_channel_struct *channel;\n");
+ print_tabs(1, fd);
+ fprintf(fd, "struct ltt_trace_struct *trace;\n");
+ print_tabs(1, fd);
+ fprintf(fd, "struct rchan_buf *relayfs_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 size;\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, "cycles_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(ltt_traces.num_active_traces == 0) return;\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 = <tng_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, "*to_base = *to = *len = 0;\n");
+ fprintf(fd, "\n");
+
+ /* Take locks : make sure the trace does not vanish while we write on
+ * it. A simple preemption disabling is enough (using rcu traces). */
+ print_tabs(1, fd);
+ fprintf(fd, "preempt_disable();\n");
+ print_tabs(1, fd);
+ fprintf(fd, "ltt_nesting[smp_processor_id()]++;\n");
+
+ /* Get facility index */
+
+ if(event->per_tracefile) {
+ print_tabs(1, fd);
+ fprintf(fd, "index = tracefile_index;\n");
+ } else {
+ 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");
+
+
+ /* For each trace */
+ print_tabs(1, fd);
+ fprintf(fd, "list_for_each_entry_rcu(trace, <t_traces.head, list) {\n");
+ print_tabs(2, fd);
+ fprintf(fd, "if(!trace->active) continue;\n\n");
+
+ if(event->per_trace) {
+ print_tabs(2, fd);
+ fprintf(fd, "if(dest_trace != trace) continue;\n\n");
+ }
+
+ print_tabs(2, fd);
+ fprintf(fd, "channel = ltt_get_channel_from_index(trace, index);\n");
+ print_tabs(2, fd);
+ fprintf(fd, "relayfs_buf = channel->rchan->buf[smp_processor_id()];\n");
+ fprintf(fd, "\n");
+
+
+ /* 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, relayfs_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) return;\n\n");
+ /* Write event header */
+ print_tabs(2, fd);
+ fprintf(fd, "ltt_write_event_header(trace, channel, 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");
+
+ /* write data : assume stack alignment is the same as struct alignment. */
+
+ 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 = <tng_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 */
+ print_tabs(2, fd);
+ fprintf(fd, "ltt_commit_slot(relayfs_buf, buffer, slot_size);\n\n");
+
+ print_tabs(1, fd);
+ fprintf(fd, "}\n\n");
+
+ /* Release locks */
+ print_tabs(1, fd);
+ fprintf(fd, "ltt_nesting[smp_processor_id()]--;\n");
+ print_tabs(1, fd);
+ fprintf(fd, "preempt_enable_no_resched();\n");
+
fprintf(fd, "}\n");
- fprintf(fd, "#endif //CONFIG_LTT\n\n");
+ fprintf(fd, "#endif //(!defined(CONFIG_LTT) || !defined(CONFIG_LTT_FACILITY_%s))\n\n",
+ fac->capname);
return 0;
}
{
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");
- fprintf(fd, "/* Facility activation at compile time. */\n");
- fprintf(fd, "#ifdef CONFIG_LTT_FACILITY_%s\n\n", fac->capname);
}
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;
+ 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;
}
/* 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(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(print_event_logging_function(basename, event, fd)) return 1;
+ if(print_event_logging_function(basename, fac, event, fd)) return 1;
fprintf(fd, "\n");
}
void print_log_header_tail(facility_t *fac, FILE *fd)
{
- fprintf(fd, "#endif //CONFIG_LTT_FACILITY_%s\n\n", fac->capname);
fprintf(fd, "#endif //_LTT_FACILITY_%s_H_\n",fac->capname);
}
char filename[PATH_MAX];
unsigned int filename_size = 0;
FILE *fd;
+ char basename[PATH_MAX];
+ char basename_len = 0;
+
dprintf("%s\n", fac->name);
strcpy(filename, "ltt-facility-id-");
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");
+
+ 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);
+
+ 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 //CONFIG_LTT\n");
+ fprintf(fd, "#endif //_LTT_FACILITY_ID_%s_H_\n",fac->capname);
+
+
fclose(fd);
return 0;
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, "#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);
+ 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 //CONFIG_LTT\n\n");
+ fprintf(fd, "#endif //_LTT_FACILITY_LOADER_%s_H_\n", fac->capname);
+
fclose(fd);
return 0;
return errno;
}
+ fprintf(fd, "/*\n");
+ fprintf(fd, " * ltt-facility-loader-%s.c\n", fac->name);
+ 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 facility loader.\n");
+ fprintf(fd, " *\n");
+ fprintf(fd, " */\n");
+ fprintf(fd, "\n");
+ fprintf(fd, "\n");
+ fprintf(fd, "#include <linux/ltt-facilities.h>\n");
+ 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);
+ fprintf(fd, "\n");
+ fprintf(fd, "\n");
+ fprintf(fd, "#ifdef CONFIG_LTT\n");
+ fprintf(fd, "\n");
+ fprintf(fd, "EXPORT_SYMBOL(LTT_FACILITY_SYMBOL);\n");
+ fprintf(fd, "EXPORT_SYMBOL(LTT_FACILITY_CHECKSUM_SYMBOL);\n");
+ fprintf(fd, "\n");
+ fprintf(fd, "static const char ltt_facility_name[] = LTT_FACILITY_NAME;\n");
+ fprintf(fd, "\n");
+ fprintf(fd, "#define SYMBOL_STRING(sym) #sym\n");
+ fprintf(fd, "\n");
+ fprintf(fd, "static struct ltt_facility facility = {\n");
+ fprintf(fd, "\t.name = ltt_facility_name,\n");
+ fprintf(fd, "\t.num_events = LTT_FACILITY_NUM_EVENTS,\n");
+ fprintf(fd, "\t.checksum = LTT_FACILITY_CHECKSUM,\n");
+ 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_CHECKSUM_SYMBOL = LTT_FACILITY_SYMBOL;\n");
+ fprintf(fd, "\t\n");
+ fprintf(fd, "\treturn LTT_FACILITY_SYMBOL;\n");
+ fprintf(fd, "}\n");
+ 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, "\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, "\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");
+ fprintf(fd, "MODULE_LICENSE(\"GPL\");\n");
+ fprintf(fd, "MODULE_AUTHOR(\"Mathieu Desnoyers\");\n");
+ fprintf(fd, "MODULE_DESCRIPTION(\"Linux Trace Toolkit Facility\");\n");
+ fprintf(fd, "\n");
+ fprintf(fd, "#endif //MODULE\n");
+ fprintf(fd, "\n");
+ fprintf(fd, "#endif //CONFIG_LTT\n");
fclose(fd);
char *token;
parse_file_t in;
facility_t * fac = NULL;
- unsigned long checksum;
char buffer[BUFFER_SIZE];
int generated = FALSE;
//check if any namedType is not defined
checkNamedTypesImplemented(&fac->named_types);
- generateChecksum(fac->name, &checksum, &fac->events);
-
+ generateChecksum(fac->name, &fac->checksum, &fac->events);
+
generated = TRUE;
}
else {
projects / lttv.git / blobdiff