Hi Waldemar,
I see in commit e65912f8b2a6 ("rework most tests to work as standalone package")
"tst-atomic" and "tst-atomic-long" were marked as disabled for all architectures
as opposed to previously (in times of test-suite being a part of uClibc) disabled
only for selected arches (IA64, MIPS and SPARC).
The only guess I have it was done due to inability to refer not-exported "atomic.h".
Is that correct? But anyways I'm looking at a possibility to revive those as they
might be of use especially in case of emulation of atomics.
Any thoughts on how that could be done?
-Alexey
Hi all,
With Spectre variant 2 (CVE-2017-5715), gcc has been updated to avoid branch prediction problems via the retpoline patch. Specifically, by using either -mindirect-branch=thunk-inline or -mindirect-branch=thunk or -mindirect-branch-thunk-external, the compiler will convert indirect branches and function returns to call and return thunks thus avoiding speculative execution in those cases. Of course, there is a performance penalty depending on the exact argument used. Has anyone compiled uclibc with one of those switches?
Take care,
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John Ata, CISSP
Senior Principal Software Engineer
Electronics Systems
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