strange problem with int64_t variables

[pluknet]

On 12 July 2010 15:11, Gabor Kovesdan <gabor at freebsd.org> wrote:
> Em 2010.07.12. 9:00, pluknet escreveu:
>>
>> Looking at getjid() impl, I see you're trying to put jid_t into the
>> one register_t
>> which are 64-bit vs 32-bit capable respectively.
>> You need to cast so you put 64-bit into two 32-bit as done for e.g.
>> lseek().
>>
>
> Thanks for pointing this out, probably this was the problem, I'll try later
> because for now, I switched to 32-bit jid_t and that part works but there's
> other similar problem now:
>
> +int
> +setjlimit(struct thread *td, struct setjlimit_args *uap)
> +{
> +       struct jobentry *jp;
> +
> +       /* sanity check */
> +       if (uap->resource>= JLIMIT_NLIMITS) {
> +               td->td_retval[0] = -1;
> +               return (EINVAL);
> +       }
>
> ...
>
> The rest is just generated code with make sysent.
>
> I call this with resource parameter set to JLIMIT_NUMPROC (whose value is 3)
> and then inside the function it is seen as 869787392, so I always get
> EINVAL. In this case resource is just a normal int so I don't know what's
> going wrong.
>

Hmm.. something on your side.

# ./setjlimit_test
setjlimit returns zero

on console:
setjlimit called
resource: 3


#ifndef _SYS_SYSPROTO_H_
struct setjlimit_args {
        jid_t   jid;
        int     resource;
        struct rlimit *rlp;
};
#endif
int
setjlimit(td, uap)
        struct thread *td;
        struct setjlimit_args /* {
                jid_t   jid;
                int     resource;
                struct rlimit *rlp;
        } */ *uap;
{

        printf("%s called\n", __FUNCTION__);

        printf("resource: %d\n", uap->resource);
        if (uap->resource >= JLIM_NLIMITS) {
                td->td_retval[0] = -1;
                return (EINVAL);
        }
        return (0);
}

-- 
wbr,
pluknet