-size_t lttng_callstack_sequence_get_size(size_t offset, struct lttng_kernel_ctx_field *field,
- struct lib_ring_buffer_ctx *ctx,
- struct lttng_channel *chan)
+size_t lttng_callstack_sequence_get_size(void *priv, struct lttng_probe_ctx *probe_ctx, size_t offset)