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Date:      Fri, 29 Aug 2014 20:34:44 +0000
From:      bugzilla-noreply@freebsd.org
To:        freebsd-bugs@FreeBSD.org
Subject:   [Bug 193109] [dtrace] cannot compile psinfo.d: line 37: syntax error near "uid_t"
Message-ID:  <bug-193109-8-F4xe9oz4mG@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-193109-8@https.bugs.freebsd.org/bugzilla/>
References:  <bug-193109-8@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=193109

--- Comment #3 from Garrett Cooper <ngie@FreeBSD.org> ---
(In reply to Mark Johnston from comment #2)
> (In reply to Mark Johnston from comment #1)
> > This type of error is almost always the result of some sort of
> > misconfiguration. A couple of things to check:
> > 
> > 1. Is kern.bootfile set to the correct path for the running kernel?
> > 2. Is there CTF data present in the kernel?
> 
> The latter can be checked with something like 'ctfdump /boot/kernel/kernel'.

Yup, that's ok:

% [ -n "$(ctfdump $(kenv kernelname))" ] && echo "I have CTF in the kernel"
I have CTF in the kernel

> If nothing interesting turns up, try running a dtrace command manually on
> the system in question, e.g. "dtrace -n 'fbt::kern_ioctl:entry'" or so. If
> it fails with the same error, try running it again with the DTRACE_DEBUG
> environment variable set to 1 and paste the output.

That command works (and prints out info)

$ sudo dtrace -n 'fbt::kern_ioctl:entry'
dtrace: description 'fbt::kern_ioctl:entry' matched 1 probe
CPU     ID                    FUNCTION:NAME
  0  34641                 kern_ioctl:entry
  0  34641                 kern_ioctl:entry
  0  34641                 kern_ioctl:entry
  0  34641                 kern_ioctl:entry
  0  34641                 kern_ioctl:entry
  0  34641                 kern_ioctl:entry
  0  34641                 kern_ioctl:entry
  0  34641                 kern_ioctl:entry
  0  34641                 kern_ioctl:entry
  0  34641                 kern_ioctl:entry
  0  34641                 kern_ioctl:entry
  0  34641                 kern_ioctl:entry
  0  34641                 kern_ioctl:entry
  0  34641                 kern_ioctl:entry
  0  34641                 kern_ioctl:entry

  0  34641                 kern_ioctl:entry
  0  34641                 kern_ioctl:entry
  1  34641                 kern_ioctl:entry
  0  34641                 kern_ioctl:entry
  1  34641                 kern_ioctl:entry

^C
$

I don't know how the preprocessing and resolution of C typedefs is handled with
dtrace, but it seems like the issue is there and not in the actual dtrace
runtime...

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