+static struct bt_ctf_field_type*
+get_tracepoint_field_type(struct ctf_writer *cw, struct format_field *field)
+{
+ unsigned long flags = field->flags;
+
+ if (flags & FIELD_IS_STRING)
+ return cw->data.string;
+
+ if (!(flags & FIELD_IS_SIGNED)) {
+ /* unsigned long are mostly pointers */
+ if (flags & FIELD_IS_LONG || flags & FIELD_IS_POINTER)
+ return cw->data.u64_hex;
+ }
+
+ if (flags & FIELD_IS_SIGNED) {
+ if (field->size == 8)
+ return cw->data.s64;
+ else
+ return cw->data.s32;
+ }
+
+ if (field->size == 8)
+ return cw->data.u64;
+ else
+ return cw->data.u32;
+}
+
+static int add_tracepoint_field_value(struct ctf_writer *cw,
+ struct bt_ctf_event_class *event_class,
+ struct bt_ctf_event *event,
+ struct perf_sample *sample,
+ struct format_field *fmtf)
+{
+ struct bt_ctf_field_type *type;
+ struct bt_ctf_field *array_field;
+ struct bt_ctf_field *field;
+ const char *name = fmtf->name;
+ void *data = sample->raw_data;
+ unsigned long long value_int;
+ unsigned long flags = fmtf->flags;
+ unsigned int n_items;
+ unsigned int i;
+ unsigned int offset;
+ unsigned int len;
+ int ret;
+
+ offset = fmtf->offset;
+ len = fmtf->size;
+ if (flags & FIELD_IS_STRING)
+ flags &= ~FIELD_IS_ARRAY;
+
+ if (flags & FIELD_IS_DYNAMIC) {
+ unsigned long long tmp_val;
+
+ tmp_val = pevent_read_number(fmtf->event->pevent,
+ data + offset, len);
+ offset = tmp_val;
+ len = offset >> 16;
+ offset &= 0xffff;
+ }
+
+ if (flags & FIELD_IS_ARRAY) {
+
+ type = bt_ctf_event_class_get_field_by_name(
+ event_class, name);
+ array_field = bt_ctf_field_create(type);
+ bt_ctf_field_type_put(type);
+ if (!array_field) {
+ pr_err("Failed to create array type %s\n", name);
+ return -1;
+ }
+
+ len = fmtf->size / fmtf->arraylen;
+ n_items = fmtf->arraylen;
+ } else {
+ n_items = 1;
+ array_field = NULL;
+ }
+
+ type = get_tracepoint_field_type(cw, fmtf);
+
+ for (i = 0; i < n_items; i++) {
+ if (!(flags & FIELD_IS_STRING))
+ value_int = pevent_read_number(
+ fmtf->event->pevent,
+ data + offset + i * len, len);
+
+ if (flags & FIELD_IS_ARRAY)
+ field = bt_ctf_field_array_get_field(array_field, i);
+ else
+ field = bt_ctf_field_create(type);
+
+ if (!field) {
+ pr_err("failed to create a field %s\n", name);
+ return -1;
+ }
+
+ if (flags & FIELD_IS_STRING)
+ ret = bt_ctf_field_string_set_value(field,
+ data + offset + i * len);
+ else if (!(flags & FIELD_IS_SIGNED))
+ ret = bt_ctf_field_unsigned_integer_set_value(
+ field, value_int);
+ else
+ ret = bt_ctf_field_signed_integer_set_value(
+ field, value_int);
+ if (ret) {
+ pr_err("failed to set file value %s\n", name);
+ goto err_put_field;
+ }
+ if (!(flags & FIELD_IS_ARRAY)) {
+ ret = bt_ctf_event_set_payload(event, name, field);
+ if (ret) {
+ pr_err("failed to set payload %s\n", name);
+ goto err_put_field;
+ }
+ }
+ bt_ctf_field_put(field);
+ }
+ if (flags & FIELD_IS_ARRAY) {
+ ret = bt_ctf_event_set_payload(event, name, array_field);
+ if (ret) {
+ pr_err("Failed add payload array %s\n", name);
+ return -1;
+ }
+ bt_ctf_field_put(array_field);
+ }
+ return 0;
+
+err_put_field:
+ bt_ctf_field_put(field);
+ return -1;
+}
+
+static int add_tracepoint_fields_values(struct ctf_writer *cw,
+ struct bt_ctf_event_class *event_class,
+ struct bt_ctf_event *event,
+ struct format_field *fields,
+ struct perf_sample *sample)
+{
+ struct format_field *field;
+ int ret;
+
+ for (field = fields; field; field = field->next) {
+ ret = add_tracepoint_field_value(cw, event_class, event, sample,
+ field);
+ if (ret)
+ return -1;
+ }
+ return 0;
+}
+
+static int add_tracepoint_values(struct ctf_writer *cw,
+ struct bt_ctf_event_class *event_class,
+ struct bt_ctf_event *event,
+ struct perf_evsel *evsel,
+ struct perf_sample *sample)
+{
+ struct format_field *common_fields = evsel->tp_format->format.common_fields;
+ struct format_field *fields = evsel->tp_format->format.fields;
+ int ret;
+
+ ret = add_tracepoint_fields_values(cw, event_class, event,
+ common_fields, sample);
+ if (!ret)
+ ret = add_tracepoint_fields_values(cw, event_class, event,
+ fields, sample);
+
+ return ret;
+}
+