Here are the before and after times with CONFIG_RETPOLINE=y always on.
I don't see any regression, just the hoped-for improvement on glibc and
vDSO calls of CLOCK_TAI.
Before:
sec Timestamp nanos clocknametzname type
-- --- - --
On 17/08/2018 5:41 AM, Andy Lutomirski wrote:
Currently, if the vDSO ends up containing an indirect branch or
call, GCC will emit the "external thunk" style of retpoline, and it
will fail to link.
Fix it by building the vDSO with inline retpoline thunks.
I haven't seen any reports of this tr
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