[dtrace-discuss] putting a running app into trace mode

[Joel Reymont]

Suppose I have a USDT probe in Firefox and that I'm trying to catch  
the startup with a probe like this:

proc:::exec-success
/execname == "firefox-bin"/
{
        start = timestamp;
}
and stop tracing when Firefox hits this USDT probe:

mozilla:::main-entry
{
  exit(0);
}

How do I put the running firefox-bin into "trace mode" so that my USDT  
probe fires?

        Thanks, Joel

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