Messages in this thread | | | Date | Thu, 11 Jun 2015 08:08:07 +0200 | From | Ingo Molnar <> | Subject | Re: [PATCH v5 02/10] x86: Compile-time asm code validation |
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* Josh Poimboeuf <jpoimboe@redhat.com> wrote:
> I should also mention that my proposed ia32_ptregs_common patch, which > duplicated the needed code, was more optimized for performance than code size. > > But if you're more worried about code size, we could turn ia32_ptregs_common > into a proper callable function, and then replace > > jmp ia32_ptregs_common > > with: > > call ia32_ptregs_common > ret > > So it becomes a regular call instead of a tail call. It only adds a few > instructions and the function is self-contained. Would that be good enough?
No, debug info should not slow down the kernel, especially not code we write in assembly partly for performance.
Thanks,
Ingo
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