from cortex_a.c:3474
static const struct command_registration cortex_r4_exec_command_handlers[] = {
{
.name = "dbginit",
.handler = cortex_a_handle_dbginit_command,
.mode = COMMAND_EXEC,
.help = "Initialize core debug",
.usage = "",
},
{
.name = "maskisr",
.handler = handle_cortex_a_mask_interrupts_command,
.mode = COMMAND_EXEC,
.help = "mask cortex_r4 interrupts",
.usage = "['on'|'off']",
},
COMMAND_REGISTRATION_DONE
};