Messages in this thread | | | From | Andy Lutomirski <> | Date | Tue, 1 Apr 2014 14:57:43 -0700 | Subject | Re: [PATCH 0/6] x86: Clean up and unify the vdso |
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On Sun, Mar 30, 2014 at 9:53 AM, Andy Lutomirski <luto@amacapital.net> wrote: > This rewrites a bunch of the vdso code. After these patches, the vvar > and hpet pages are mapped directly after the vdso text on all five vdso > variants. The fixmaps are gone on 64-bit systems. > > It would be possible to build the x32 vdso the normal way on top of > these patches. > > I haven't touched the pvclock code. I'd want to understand why it > exists, why it isn't using rdtsc, and why it has two rdtsc_barrier calls > before rearranging it. > > This is most likely 3.16 material. > > Andy Lutomirski (6): > x86: Clean up 32-bit vs 64-bit vdso params > x86: Move syscall and sysenter setup into kernel/cpu/common.c > x86: Reimplement vdso.so preparation in build-time C
This breaks gold. I'll submit a v2 after the merge window with a fix. (It's a trivial change to the linker script and shouldn't meaningfully affect any effort to review this series.)
> x86: Move the 32-bit vdso special pages after the text > x86: Move the vvar and hpet mappings next to the 64-bit vDSO > x86: Remove vestiges of VDSO_PRELINK and some outdated comments
--Andy
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