[lttng-dev] lttng-consumerd crash on aarch64 due to x86 arch specific optimization

[Beckius, Mikael]

Hello Mathieu!

I added your latest implementation to my test and it seems to perform well on both arm and arm64. Since the test was written in C++ I had to make a small change to the cast in order for the test to compile.

Micke

> -----Ursprungligt meddelande-----
> Från: Mathieu Desnoyers <mathieu.desnoyers at efficios.com>
> Skickat: den 2 februari 2023 17:26
> Till: Beckius, Mikael <mikael.beckius at windriver.com>; lttng-
> dev at lists.lttng.org
> Ämne: Re: [lttng-dev] lttng-consumerd crash on aarch64 due to x86 arch
> specific optimization
> 
> CAUTION: This email comes from a non Wind River email account!
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> 
> Hi  Mikael,
> 
> I just tried another approach to fix this issue, see:
> 
> https://review.lttng.org/c/lttng-ust/+/9413 Fix: use unaligned pointer
> accesses for lttng_inline_memcpy
> 
> It is less intrusive than other approaches, and does not change the generated
> code on the
> most relevant architectures.
> 
> Feedback is welcome,
> 
> Thanks,
> 
> Mathieu
> 
> 
> --
> Mathieu Desnoyers
> EfficiOS Inc.
> https://www.efficios.com