Adam Leventhal wrote: > When you run dtrace -G it places nops at the probe sites. One of those nops > will then be replaced with a trap instruction when the probe is enabled by > your D script.
Thanks for the reply. And how does dtrace keep track of which address to replace for a given probe ? > I've been meaning to write up a blog entry describing how USDT works, but > I've been afraid that only James McIlree and I would find it interesting. I would too :) Rafael > > Adam > > On Mon, Jun 16, 2008 at 09:34:26PM +0100, Rafael Vanoni wrote: >> I was looking at some assembly on mdb and noticed that calls to >> DTRACE_PROBE1() were seen as ~5 nops. >> >> Could anyone explain me why's that ? >> >> thanks >> Rafael >> _______________________________________________ >> dtrace-discuss mailing list >> [email protected] > _______________________________________________ dtrace-discuss mailing list [email protected]
