Re: [Qemu-devel] [PATCH] linux-user: Implement renameat2 when defined

[Bastian Koppelmann]

On 12/20/2017 01:29 AM, Palmer Dabbelt wrote:
> From: Palmer Dabbelt <address@hidden>
> 
> The RISC-V Linux port was recently accept upstream and will be released
> as part of 4.15.  While working on our glibc port I discovered that
> qemu's user-mode emulation doesn't support renameat2, which has replaced
> rename as part of the default system call list for new architectures.
> Since a bunch of commonly used functionality boils down to rename (and
> now renameat2), we ended up with many failures.
> 
> This patch adds support for renameat2.  As I'm not familiar with QEMU
> development, I haven't really testing anything more than a simple
> "./configure; make" on the upstream codebase, but I did test this
> against our (not yet upstream) QEMU port where it appears to work for
> me.  I've just cobbled it together by copying the existing renameat
> implementation, but as there appears to be no glibc wrapper for
> renameat2 on either of the systems I've tried this on I just emited the
> system call directly.
> 

CC'ed linux-user maintainer Riku Voipio.

Cheers,
Bastian