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Date: Sat, 30 May 2020 17:37:43 +0200
From: Christophe Leroy <christophe.leroy@...roup.eu>
To: Will Springer <skirmisher@...tonmail.com>, linuxppc-dev@...ts.ozlabs.org
Cc: libc-alpha@...rceware.org, eery@...erfox.es, daniel@...aforge.org,
musl@...ts.openwall.com, binutils@...rceware.org, libc-dev@...ts.llvm.org
Subject: Re: ppc64le and 32-bit LE userland compatibility
Le 29/05/2020 à 21:03, Will Springer a écrit :
[...]
>
> Also worth noting is the one other outstanding bug, where the time-related
> syscalls in the 32-bit vDSO seem to return garbage. It doesn't look like an
> endian bug to me, and it doesn't affect standard syscalls (which is why if you
> run `date` on musl it prints the correct time, unlike on glibc). The vDSO time
> functions are implemented in ppc asm (arch/powerpc/kernel/vdso32/
> gettimeofday.S), and I've never touched the stuff, so if anyone has a clue I'm
> all ears.
>
There is a series at
https://patchwork.ozlabs.org/project/linuxppc-dev/list/?series=173231 to
switch powerpc to the Generic C VDSO.
Can you try and see whether it fixes your issue ?
Christophe
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