[Bug 1891748] Re: qemu-arm-static 5.1 can't run gcc

[Thorsten Glaser]

$ qemu-arm --version
qemu-arm version 5.2.0 (Debian 1:5.2+dfsg-6)
Copyright (c) 2003-2020 Fabrice Bellard and the QEMU Project developers

I’m seeing this error on a totally different file:

I’ve made a short test program (hello world-ish) and compiled it with
the OpenWrt toolchain but added -static so I can run it on the host
using qemu-user-arm:

$ STAGING_DIR=$PWD/staging_dir 
PATH=staging_dir/toolchain-arm_cortex-a15+neon-vfpv4_gcc-7.5.0_musl_eabi/bin:$PATH
 arm-openwrt-linux-muslgnueabi-gcc -Os -pipe -g3 -fno-caller-saves -fno-plt 
-fhonour-copts -mfloat-abi=hard -fstack-protector -D_FORTIFY_SOURCE=1 
-Wl,-z,now -Wl,-z,relro -static x.c
$ ./a.out 
Allocating guest commpage: Operation not permitted

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https://bugs.launchpad.net/bugs/1891748

Title:
  qemu-arm-static 5.1 can't run gcc

Status in QEMU:
  Fix Released
Status in Juju Charms Collection:
  New

Bug description:
  Issue discovered while trying to build pikvm (1)

  Long story short: when using qemu-arm-static 5.1, gcc exits whith
  message:

  Allocating guest commpage: Operation not permitted

  
  when using qemu-arm-static v5.0, gcc "works"

  Steps to reproduce will follow

  (1)  https://github.com/pikvm/pikvm/blob/master/pages/building_os.md

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