Oh, you probably haven't installed a file with your translator in
/usr/lib/dtrace -- could that be it?
Unfortunately, translators aren't slurped into the USDT DOF helper.
Adam
On Fri, Sep 07, 2007 at 07:04:37AM -0700, Terry Dontje wrote:
> Ok, I've looked at the iSCSI_provider.d and except for the translator code I
> don't see anything obvious. In order to simplify things I've created a small
> program that exhibits the same issue.
> The compilation and failing dtrace execution follows:
>
> % cc -c debug.c
> % dtrace -G -32 -s usdt.d debug.o
> % cc -o main main.c usdt.o debug.o
> % dtrace -c main -n 'mpi__test$target::: { printf("%d",args[0]->bar)}'
> dtrace: invalid probe specifier mpi__test$target::: {
> printf("%d",args[0]->bar)}: in action list: failed to resolve translated type
> for args[0]
>
> The code is as follows:
> -----main.c------
> void main() {
> dprintf();
> }
>
> -----debug.c-----
> #include <sys/sdt.h>
> void
> dprintf()
> {
> struct foo {
> int bar;
> int baz;
> } me;
>
> me.bar = 1;
> me.baz = 2;
>
> DTRACE_PROBE1(mpi__test, DEBUG_MESSAGE, &me);
> }
> -----usdt.d-----
> typedef struct foo {
> int bar;
> int baz;
> } foo_t;
>
> provider mpi__test {
> probe DEBUG_MESSAGE(foo_t *);
> };
>
> thanks,
>
> --td
> > You can certainly access typed arguments from USDT
> > probes. Can you send
> > the full script? If you're using the conninfo_t you
> > may want to take a look
> > at what I did in the iSCSI target provider and some
> > scripts that Brendan
> > Gregg wrote that use the provider.
> >
> > Adam
> >
> > On Wed, Sep 05, 2007 at 12:16:50PM -0700, Terry
> > Dontje wrote:
> > > Is trying to access a typed argument from a USDT
> > probe allowed?
> > > I have a script that does "printf("%s\n",
> > copyinstr(args[0]->ci_protocol);" and I get the error
> > message of "dtrace: failed to compile script
> > mpiconn.d: line 12: failed to resolve translated type
> > for args[0]"?
> > >
> > > --td
> > >
> > >
> > > --
> > > This message posted from opensolaris.org
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> > > dtrace-discuss mailing list
> > > [email protected]
> >
> > --
> > Adam Leventhal, FishWorks
> > http://blogs.sun.com/ahl
> > ________________________
> > dtrace-discuss mailing list
> > [email protected]
>
>
> --
> This message posted from opensolaris.org
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Adam Leventhal, FishWorks http://blogs.sun.com/ahl
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