[Bug 1942895] Re: Build fails on riscv64 in qemu user emulation

[Brian Murray]

A version of pocl which includes this fix is currently in -proposed for
Jammy however the package failed to build on every architecture besides
riscv64. Regardless, there is no longer anything for the sponsors team
to do here so I am unsubscribing them.

-- 
You received this bug notification because you are a member of Ubuntu
Sponsors Team, which is subscribed to the bug report.
https://bugs.launchpad.net/bugs/1942895

Title:
  Build fails on riscv64 in qemu user emulation

Status in pocl package in Ubuntu:
  In Progress
Status in pocl package in Debian:
  Fix Released

Bug description:
  Ubuntu release: hirsute/impish

  pocl gets the host machine cache line size using
  getconf(LEVEL1_DCACHE_LINESIZE) and when this value is not defined by
  the underlying architecture, glibc returns 0 which is correctly
  handled by pocl CMakeLists.txt. But riscv64 defines this system
  variable since glibc 2.33 (cf commit 15b38ffc104a ("riscv: Get cache
  information through sysconf")) and amd64 does not. Then when using
  qemu usermode emulation to build pocl for riscv64 on an amd64 host,
  this system variable is not created and then the riscv implementation
  now returns -1 instead of 0, which is mapped to the string "undefined"
  by getconf utility. This value is not handled by pocl and then the
  build fails.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/pocl/+bug/1942895/+subscriptions