[Bug 1927192] Re: gdb ftbfs on armhf, testsuite timeouts

[Launchpad Bug Tracker]

This bug was fixed in the package glibc - 2.31-0ubuntu9.9

---------------
glibc (2.31-0ubuntu9.9) focal; urgency=medium

  * Disable testsuite on riscv64. It is failing maths tests intermittently in
    ways that cannot be a glibc regression and is disabled in later series
    anyway.

glibc (2.31-0ubuntu9.8) focal; urgency=medium

  * Update for 20.04. (LP: #1951033)

  [ Balint Reczey ]
  * Cherry-pick upstream patch to fix building with -moutline-atomics
  * Prevent rare deadlock in pthread_cond_signal (LP: #1899800)

  [ Matthias Klose ]
  * Revert: Use DH_COMPAT=8 for dh_strip to fix debug sections for valgrind.
    Enables debugging ld.so related issues. (LP: #1918035)
  * Don't strip ld.so on armhf. (LP: #1927192)

  [ Gunnar Hjalmarsson ]
  * d/local/usr_sbin/update-locale: improve sanity checks. (LP: #1892825)

  [ Heitor Alves de Siqueira ]
  * d/p/u/git-lp1928508-reversing-calculation-of-__x86_shared_non_temporal.patch:
    - Fix memcpy() performance regression on x86 AMD systems (LP: #1928508)

  [ Aurelien Jarno ]
  * debian/debhelper.in/libc.preinst: drop the check for kernel release
    > 255 now that glibc and preinstall script are fixed. (LP: #1962225)

  [ Michael Hudson-Doyle ]
  * libc6 on arm64 is now built with -moutline-atomics so libc6-lse can now be
    an empty package that is safe to remove. (LP: #1912652)
  * d/patches/u/aarch64-memcpy-improvements.patch: Backport memcpy
    improvements. (LP: #1951032)
  * Add test-float64x-yn to xfails on riscv64.

 -- Michael Hudson-Doyle <michael.hudson at ubuntu.com>  Thu, 07 Apr 2022
13:24:41 +1200

** Changed in: glibc (Ubuntu Focal)
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/1927192

Title:
  gdb ftbfs on armhf, testsuite timeouts

Status in gdb:
  Incomplete
Status in gdb package in Ubuntu:
  Fix Released
Status in glibc package in Ubuntu:
  Fix Released
Status in gdb source package in Focal:
  Fix Released
Status in glibc source package in Focal:
  Fix Released
Status in gdb source package in Groovy:
  Won't Fix
Status in glibc source package in Groovy:
  Won't Fix
Status in gdb source package in Hirsute:
  Won't Fix
Status in glibc source package in Hirsute:
  Won't Fix
Status in gdb source package in Impish:
  Fix Released
Status in glibc source package in Impish:
  Fix Released

Bug description:
  [Impact]

  * Gdb can't set some breakpoints in ld.so on armhf when libc6-dbg is
  not installed.

  [Test Plan]

  * Check that ld.so is not stripped on armhf:
  $  /lib/*/ld-2.31.so
  libc6/lib/arm-linux-gnueabihf/ld-2.31.so: ELF 32-bit LSB shared object, ARM, EABI5 version 1 (SYSV), dynamically linked, BuildID[sha1]=e20a43bff0c4d2aa7f508c93eadad973ea0c0af9, with debug_info, not stripped

  * Check that ld.so is stripped on amd64:

  $ file /lib/x86_64-linux-gnu/ld-2.31.so
  /lib/x86_64-linux-gnu/ld-2.31.so: ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, BuildID[sha1]=ea85fcb25ee4c4c9e7b180924ab4a44257a9547a, stripped

  [Where problems could occur]

  * The fix is not stripping ld.so on armhf. Not stripping it comes with
  a notable increase in file size and it may be performance critical
  109K stripped vs 1.3M unstripped. Accidentally ld.so could be left
  unstripped on other architectures, but the test plan covers checking
  that, at least on amd64. Other than those not stripping ld.so should
  not cause any issue.

  [Original Bug Text]

  see https://launchpad.net/ubuntu/+source/gdb/10.2-0ubuntu3

  $ zcat buildlog_ubuntu-impish-armhf.gdb_10.2-0ubuntu3_BUILDING.txt.gz | fgrep '(timeout)'|wc -l
  10451

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