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 tep_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 flags = fmtf->flags;
unsigned int n_items;
unsigned int i;
unsigned int offset;
unsigned int len;
int ret;
name = fmtf->alias;
offset = fmtf->offset;
len = fmtf->size;
if (flags & TEP_FIELD_IS_STRING)
flags &= ~TEP_FIELD_IS_ARRAY;
if (flags & TEP_FIELD_IS_DYNAMIC) {
unsigned long long tmp_val;
tmp_val = tep_read_number(fmtf->event->pevent,
data + offset, len);
offset = tmp_val;
len = offset >> 16;
offset &= 0xffff;
}
static int get_common_field(struct scripting_context *context,
int *offset, int *size, const char *type)
{
struct tep_handle *pevent = context->pevent;
struct event_format *event;
struct format_field *field;
if (!*size) {
if (!pevent->events)
return 0;
event = pevent->events[0];
field = tep_find_common_field(event, type);
if (!field)
return 0;
*offset = field->offset;
*size = field->size;
}
return tep_read_number(pevent, context->event_data + *offset, *size);
}
static int
trace_stack_handler(struct trace_seq *s, struct tep_record *record,
struct tep_event *event, void *context)
{
struct tracecmd_ftrace *finfo = context;
struct tep_format_field *field;
unsigned long long addr;
const char *func;
void *data = record->data;
field = tep_find_any_field(event, "caller");
if (!field) {
trace_seq_printf(s, "<CANT FIND FIELD %s>", "caller");
return 0;
}
trace_seq_puts(s, "<stack trace>\n");
long_size_check(finfo);
for (data += field->offset; data < record->data + record->size;
data += finfo->long_size) {
addr = tep_read_number(event->tep, data, finfo->long_size);
if ((finfo->long_size == 8 && addr == (unsigned long long)-1) ||
((int)addr == -1))
break;
func = tep_find_function(event->tep, addr);
if (func)
trace_seq_printf(s, "=> %s (%llx)\n", func, addr);
else
trace_seq_printf(s, "=> %llx\n", addr);
}
return 0;
}
unsigned long long read_size(struct event_format *event, void *ptr, int size)
{
return tep_read_number(event->pevent, ptr, size);
}
