Re: in-system dtrace ".d" failure

[bch <brad.harder%gmail.com@localhost>]

On 10/27/15, Thomas Klausner <wiz%netbsd.org@localhost> wrote:
> On Tue, Oct 27, 2015 at 12:14:15PM -0700, bch wrote:
>> > "/usr/lib/dtrace/psinfo.d", line 46: syntax error near "u_int"
>>
>> I'm trying to build a userland app w/ dtrace support, and a dtrace
>> compilation is failing w/ the above error... Is anybody having success
>> instrumenting userland code w/ dtrace ? I saw this[0], and will be
>> looking for representative code. In the meantime, I've diff'd our
>> /usr/lib/dtrace/psinfo.d w/ FreeBSD head and see no immediate fixes
>> for ourselves (note: I'm not a dtrace expert).
>>
>> Does anybody have insight or comments on this ?
>
> I have built a kernel with MKCTF but still cannot build mysql55-client
> (which was throwing this error).
>
> The error changed to
>
> dtrace: failed to compile script
> /disk/3/archive/obj/databases/mysql55-client/work/mysql-5.5.46/include/probes_mysql.d:
> "/usr/lib/dtrace/psinfo.d", line 46: failed to copy type of 'pr_arglen':
> Type information is in parent and unavailable
>
> When I change the type from u_int to size_t in psinfo.d, I see
>
> dtrace: failed to compile script
> /disk/3/archive/obj/databases/mysql55-client/work/mysql-5.5.46/include/probes_mysql.d:
> "/usr/lib/dtrace/psinfo.d", line 63: cannot find type: struct proc*: Type
> information is in parent and unavailable
>
> instead. Line 63 is the "};" that ends this block:
>
> #pragma D binding "1.0" translator
> translator psinfo_t < struct proc *T > {
>         pr_nlwp = T->p_nlwps;
>         pr_pid = T->p_pid;
>         pr_ppid = (T->p_pptr == 0) ? 0 : T->p_pptr->p_pid;
>         pr_pgid = (T->p_pgrp->pg_session->s_leader == 0) ? 0 :
> T->p_pgrp->pg_session->s_leader->p_pid;
>         pr_sid = (T->p_pgrp == 0) ? 0 : ((T->p_pgrp->pg_session == 0) ? 0 :
> T->p_pgrp->pg_session->s_sid);
>         pr_uid = T->p_cred->cr_uid;
>         pr_euid = T->p_cred->cr_euid;
>         pr_gid = T->p_cred->cr_gid;
>         pr_egid = T->p_cred->cr_egid;
>         pr_addr = 0;
>         pr_psargs = stringof(T->p_comm);
>         pr_arglen = strlen(T->p_comm);
> };
>
> Christos cannot reproduce this problem, and I have no idea how to
> continue here. Any suggestions?

Did you ever get this solved, Thomas? I'm running into same thing
currently (up-to-date nbsd -current as of this message).


>  Thomas
>