Messages in this thread | | | Date | Wed, 6 May 2020 10:01:12 -0400 (EDT) | From | Mathieu Desnoyers <> | Subject | Re: [PATCH v4 14/18] static_call: Add static_cond_call() |
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----- On May 6, 2020, at 9:55 AM, Peter Zijlstra peterz@infradead.org wrote:
> On Tue, May 05, 2020 at 04:27:44PM -0400, Mathieu Desnoyers wrote: >> Actually, if the goal is to do code patching of the call, I wonder >> what makes it OK to "guess" all the call patterns generated by the compiler ? > > We're not guessing, have have objtool read the compiler output and > record the location for us. The compiler can generate whatever it likes.
So is the plan to adapt objtool if future compilers change the generated instruction patterns ?
Thanks,
Mathieu
-- Mathieu Desnoyers EfficiOS Inc. http://www.efficios.com
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