Messages in this thread | | | Subject | Re: [PATCH] x86/entry: Improve system call entry comments | From | "H. Peter Anvin" <> | Date | Tue, 8 Mar 2016 10:40:24 -0800 |
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On 03/08/16 02:30, Ingo Molnar wrote: >>>> + * >>>> + * This is considered a slow path. It is not used by modern libc >>>> + * implementations on modern hardware except during process startup. >>>> + * >> >> Sadly I believe Android still uses int $0x80 in the upstream version. > > I don't see how that fact conflicts with my statement: on 64-bit kernels INT $0x80 > will (of course) work, but will land on another entry point: entry_INT80_compat(), > not entry_INT80_32(). > > On 32-bit kernels the INT $0x80 entry point is entry_INT80_32(). >
It doesn't. I was referring to the above quote. Trying to fix that.
-hpa
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