Function db_set_watchpoint

freebsd/ddb/db_watch.c:97–135

}

static void
db_set_watchpoint(vm_map_t map, db_addr_t addr, vm_size_t size)
{
	db_watchpoint_t	watch;

	if (map == NULL) {
	    db_printf("No map.\n");
	    return;
	}

	/*
	 *	Should we do anything fancy with overlapping regions?
	 */

	for (watch = db_watchpoint_list;
	     watch != 0;
	     watch = watch->link)
	    if (db_map_equal(watch->map, map) &&
		(watch->loaddr == addr) &&
		(watch->hiaddr == addr+size)) {
		db_printf("Already set.\n");
		return;
	    }

	watch = db_watchpoint_alloc();
	if (watch == 0) {
	    db_printf("Too many watchpoints.\n");
	    return;
	}

	watch->map = map;
	watch->loaddr = addr;
	watch->hiaddr = addr+size;

	watch->link = db_watchpoint_list;
	db_watchpoint_list = watch;

	db_watchpoints_inserted = false;
}

static void
db_delete_watchpoint(vm_map_t map, db_addr_t addr)