Functions not getting picked up by dtrace

[hiren panchasara]

On 02/29/16 at 01:49P, Mark Johnston wrote:
> On Mon, Feb 29, 2016 at 01:39:33PM -0800, hiren panchasara wrote:
> > I've seen this earlier with others too but this one is the latest
> > confusing me: em_xmit() in $src/dev/e1000/if_em.c
> > 
> > Other functions with similar signature are listed in 'dtrace -l'.
> 
> em_xmit() is a static function with a single call site, so it's getting
> inlined into its caller. DTrace FBT can't instrument inlined functions.
> 
> > 
> > Is is because of some optimization? How do I undo it for testing
> > purposes?
> 
> There's a __noinline attribute that you can use for this.

Thanks, Mark.

cem on irc also explained the "why" part.

Cheers,
Hiren
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 603 bytes
Desc: not available
URL: <http://lists.freebsd.org/pipermail/freebsd-dtrace/attachments/20160229/fdda8b22/attachment.sig>