Function rt_fdt_bootargs_select

components/drivers/ofw/fdt.c:802–849

}

rt_err_t rt_fdt_bootargs_select(const char *key, int index, const char **out_result)
{
    rt_err_t err;

    if (key && index >= 0 && out_result)
    {
        int offset = fdt_path_offset(_fdt, "/chosen");

        if (offset >= 0)
        {
            int len, key_len = rt_strlen(key);
            const char *bootargs = fdt_getprop(_fdt, offset, "bootargs", &len), *end;

            end = bootargs + len;
            err = -RT_EEMPTY;

            for (int i = 0; bootargs < end; ++i)
            {
                bootargs = rt_strstr(bootargs, key);

                if (!bootargs)
                {
                    break;
                }

                bootargs += key_len;

                if (i == index)
                {
                    *out_result = bootargs;

                    err = -RT_EOK;
                    break;
                }
            }
        }
        else
        {
            err = -RT_ERROR;
        }
    }
    else
    {
        err = -RT_EINVAL;
    }

    return err;
}

static void system_node_init_flag(struct rt_ofw_node *np)
{