[Bug 1922712] Re: add metric for new glibc hwcaps

William Wilson 1922712 at bugs.launchpad.net
Fri Apr 9 19:14:08 UTC 2021

Seb, I have made a PR in the github repo. This PR also pulls in the
changes in version 1.6.3, which were previously not present.

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  add metric for new glibc hwcaps

Status in ubuntu-report package in Ubuntu:

Bug description:
  we want to collect information which most recent hwcap is supported by
  a machine.  The result should be a string like "x86-64-v2",
  "x86-64-v3", "x86-64-v4", "z13", "z14", "p9", "p10" depending on "ld-
  linux --help" output.  The string should be empty for architectures
  without glibc hwcaps (currently armhf, arm64, i386, riscv64). The
  string should be empty if no specific hwcaps is supported (e.g. on a
  power8 machine). The string should be "N/A" (not available), when
  trying to run ld-linux on a release with glibc (<< 2.33).

  Note that lexical sorting won't work for "p9", "p10".

  if test -x /lib/x86_64-linux-gnu/ld-linux-x86-64.so.2; then
  elif test -x /lib/powerpc64le-linux-gnu/ld64.so.2; then
  elif test -x /lib/s390x-linux-gnu/ld64.so.1; then

  if [ -n "$lddynload" ]; then
    $lddynload --help 2>&1 | awk '/^Subdirectories/,/^$/'
    supported=$($lddynload --help 2>&1 | awk '/^Subdirectories/,/^$/' | awk '/supported/ {print $1}')

  Here, $supported has listed all supported hwcaps, not just the best
  supported one.

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