[Bug 1861341] Re: ARM QEMU: Unknown syscall 397

[Laurent Vivier]

New syscall definitions for ARM have been added lately by:

73209e1f15c6 ("linux-user: arm: Update syscall numbers to kernel 5.5
level")

It will available in QEMU 5.0

** Changed in: qemu
     Assignee: (unassigned) => Laurent Vivier (laurent-vivier)

** Changed in: qemu
       Status: New => Fix Committed

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https://bugs.launchpad.net/bugs/1861341

Title:
  ARM QEMU: Unknown syscall 397

Status in QEMU:
  Fix Committed

Bug description:
  QEMU is reporting

  ```
  Unknown syscall 397
  ```

  (statx if I read tables right) when used via flatpak for ARM images on
  x86_64. This has been reproduced on Fedora and Gentoo.

  To reproduce:

  - get flatpak KDE 5.12 for arm:

  flatpak install --user org.kde.Sdk/arm/5.12 org.kde.Platform/arm/5.12

  
  - run qmake inside Sdk:

  QEMU_STRACE=1 flatpak run --filesystem=host --command=qmake
  org.kde.Sdk/arm/5.12 .

  
  You will get a host of messages with unknown syscall. In practice, qmake will 
fail to find .pro files if you have them in that folder and libraries in the 
system.

  As far as I understand, Flatpak images are built on AARCH64 hardware.

  My config on Gentoo:

  kernel: 4.19.86-gentoo x86_64
  app-emulation/qemu: ~4.2.0-r1 , same with 4.0.0

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