On 9/07/20 9:13 pm, Adrian Hunter wrote: > On 9/07/20 8:50 pm, Andi Kleen wrote: >> On Thu, Jul 09, 2020 at 08:36:22PM +0300, Adrian Hunter wrote: >>> The itrace "e" option may be followed by a number which has the >>> following effect for Intel PT: >>> 1 Suppress overflow events >>> 2 Suppress trace data lost events >>> The values may be combined by bitwise OR'ing them. >>> >>> Suppressing those errors can be useful for testing and debugging >>> because they are not due to decoding. >> >> I suspect it will be useful to more than just decoding and debugging. >> >> But the number is not a nice user interface. >> >> How about e[....] >> >> like e[ol] > > Do you mean literally square-brackets? If you were really unlucky you might > get pathname expansion with that. > >> >> Also it's a bit unusual that this disables instead of enables, but ok.
What about prefixing each flag with - i.e. e-o e-l e-o-l
