[Qemu-devel] [Bug 1658120] Re: building with gcc-aarch64-linux-gnu

[Bilal Amarni]

Thanks for your replies,

I've managed to compile it using a chroot as suggested by Peter. I just
grabbed a pre-built rootfs from here : https://wiki.debian.org/Arm64Port
#Pre-built_Rootfses, then installed qemu-user-static with apt-get and
run the build from the chroot.

Somehow "apt-get build-dep -a arm64 qemu" didn't work, I had tried to do
"dpkg --add-architecture arm64 && apt-get update" before running this
command but it couldn't find the needed packages, not sure why.

In any case thanks for your help :)

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https://bugs.launchpad.net/bugs/1658120

Title:
  building with gcc-aarch64-linux-gnu

Status in QEMU:
  Invalid

Bug description:
  Hi, while trying to build qemu v2.8.0 with gcc-aarch64-linux-gnu
  cross-compiler I'm getting the following :

  
  In file included from /usr/include/x86_64-linux-gnu/sys/syscall.h:31:0,
                   from /root/qemu/util/compatfd.c:21:
  /root/qemu/util/compatfd.c: In function 'qemu_signalfd':
  /root/qemu/util/compatfd.c:103:19: error: '__NR_signalfd' undeclared (first 
use in this function)
       ret = syscall(SYS_signalfd, -1, mask, _NSIG / 8);
                     ^
  /root/qemu/util/compatfd.c:103:19: note: each undeclared identifier is 
reported only once for each function it appears in
  /root/qemu/rules.mak:59: recipe for target 'util/compatfd.o' failed
  make: *** [util/compatfd.o] Error 1

  
  I had configured it with :

  ../configure --target-list=x86_64-linux-user --static --cpu=aarch64

  And I'm on :

  Linux ubuntu-512mb-fra1-01 4.4.0-59-generic #80-Ubuntu SMP Fri Jan 6
  17:47:47 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux

  Thanks

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