Date: Fri, 6 Apr 2018 09:30:42 -0400 From: Ash Gokhale <ashfixit@gmail.com> To: freebsd-dtrace@freebsd.org, aijazbaig1@gmail.com Subject: re: Error while executing fsrw.d from opendtrace toolkit Message-ID: <CAHpe%2B0Z8Thy_rtJgMWOU_44gjuMC=XwzD9HM8SP06%2BPC1d4oAw@mail.gmail.com>
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> root at BSD11 <https://lists.freebsd.org/mailman/listinfo/freebsd-dtrace>:/home/me/dtrace/toolkit/FS # dtrace -s ./fsrw.d >dtrace: failed to compile script ./fsrw.d: line 78: syntax error near ")" (uint64_t)arg0 * (uint64_t)sizeof (uf_entry_t)); this->filep = this->ufentryp->uf_file; self->offset = this->filep->f_offset A bunch of the toolkit is not generally portable. You are not really missing anything; except that those kernel structures are solaris specific. Dtrace scripts that 'dig around' in kernel structures are rarely portable. What are you looking to instrument? It might be that you can write your own dt by digging around in kernel source for yourself, or use Devin Teskys dwatch to get what you need. I've written some dtrace that traps zfs writes: https://github.com/agokhale/cantrips/blob/master/dt/whowritestoadev.dtrace And one that generates r/w size histograms for all file systems: https://github.com/agokhale/cantrips/blob/master/dt/readwritesizehist.dt
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