Messages in this thread | | | Date | Thu, 22 May 2008 00:18:33 -0700 | From | "H. Peter Anvin" <> | Subject | Re: [RFC] x86: xsave/xrstor support, ucontext_t extensions |
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Roland McGrath wrote: >> Yes, but I suspect for legacy apps running without vDSO might matter. > > "Legacy" apps want to be changed to make a new kind of kernel query > and care about new details of signal frame layout for new features > they never used before, but don't want to handle the vDSO?
I'm talking mostly about semi-embedded ISVs that have managed to get themselves funny ideas about what they don't want to change. The vDSO definitely involves more machinery to get to.
-hpa
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