Function dbg_monitor_init

freebsd/arm/arm/debug_monitor.c:929–973

}

void
dbg_monitor_init(void)
{
	int err;

	/* Fetch ARM Debug Architecture model */
	dbg_model = dbg_get_debug_model();

	if (!dbg_arch_supported()) {
		db_printf("ARM Debug Architecture not supported\n");
		return;
	}

	if (bootverbose) {
		db_printf("ARM Debug Architecture %s\n",
		    (dbg_model == ID_DFR0_CP_DEBUG_M_V6) ? "v6" :
		    (dbg_model == ID_DFR0_CP_DEBUG_M_V6_1) ? "v6.1" :
		    (dbg_model == ID_DFR0_CP_DEBUG_M_V7) ? "v7" :
		    (dbg_model == ID_DFR0_CP_DEBUG_M_V7_1) ? "v7.1" : "unknown");
	}

	/* Do we have OS Save and Restore mechanism? */
	dbg_ossr = dbg_get_ossr();

	/* Find out many breakpoints and watchpoints we can use */
	dbg_watchpoint_num = dbg_get_wrp_num();
	dbg_breakpoint_num = dgb_get_brp_num();

	if (bootverbose) {
		db_printf("%d watchpoints and %d breakpoints supported\n",
		    dbg_watchpoint_num, dbg_breakpoint_num);
	}

	err = dbg_reset_state();
	if (err == 0) {
		err = dbg_enable_monitor();
		if (err == 0) {
			atomic_set_int(&dbg_capable_var, 1);
			return;
		}
	}

	db_printf("HW Breakpoints/Watchpoints not enabled on CPU%d\n",
	    PCPU_GET(cpuid));
}

CTASSERT(sizeof(struct dbreg) == sizeof(((struct pcpu *)NULL)->pc_dbreg));