Messages in this thread | | | Date | Sun, 15 Jun 2014 23:49:04 -0400 | From | Rich Felker <> | Subject | Re: [RFC 0/2] __vdso_findsym |
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On Mon, Jun 16, 2014 at 04:36:04AM +0200, Andi Kleen wrote: > > At least versioning is always useful to have, just to have > another tool for compatibility if changes are needed.
I disagree. Just like syscalls, vdso functions with new APIs/ABIs should have new names. For example if a version of clock_gettime for a new userspace with 64-bit time_t is added, it should be called clock_gettime64 (with a corresponding __NR_clock_gettime64), not offered as a versioned symbol over top of the old one. The versioned symbol approach is a lot more confusing and as far as I can tell offers no benefits.
Rich
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