int (*init)(struct etm_context *etm_ctx);
trace_status_t (*status)(struct etm_context *etm_ctx);
int (*read_trace)(struct etm_context *etm_ctx);
int (*init)(struct etm_context *etm_ctx);
trace_status_t (*status)(struct etm_context *etm_ctx);
int (*read_trace)(struct etm_context *etm_ctx);