Messages in this thread | | | Date | Mon, 21 Mar 2022 15:18:47 +0530 | From | "Naveen N. Rao" <> | Subject | Re: [RFC PATCH 2/3] objtool: Enable and implement 'mcount' subcommand |
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Christophe Leroy wrote: > > > Le 21/03/2022 à 09:19, Naveen N. Rao a écrit : >> Christophe Leroy wrote: >> >> We don't enable ftrace for vdso, so I suspect objtool run above will be >> a no-op. This needs to be confirmed, of course. >> > > I just checked without the series: recordmcount isn't run for VDSO, so > objtool shouldn't be run either when the series is applied.
Agree. I was only pointing out that it would be harmless, but it is good to ensure objtool is skipped for files/directories where ftrace isn't enabled. recordmcount keys off the presence of CC_FLAGS_FTRACE, and we should do the same for 'objtool --mcount'.
- Naveen
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