[Bug 997359] Re: nih uses eglibc private symbol __abort_msg

[Launchpad Bug Tracker]

This bug was fixed in the package apport - 2.6.3-0ubuntu1

---------------
apport (2.6.3-0ubuntu1) raring; urgency=low

  * New upstream release. Changes since our previous snapshot:
    - debian.py: Only reject reports with useless stack traces if the report
      actually has a stack trace at all.
    - debian.py: Fix UTF-8 string handling. Thanks Ritesh Raj Sarraf.
    - debian.py: Fix crash on broken "Package" fields, as generated by current
      Debian/Ubuntu dkms package.
    - data/apport: Call fsync when writing upstart crash reports.
    - report.py, add_gdb_info(): Handle libnih's assertion messages.
      (LP: #997359)
    - apport-gtk, apport-kde: Don't provide an option to restart a crashed
      application when the crash occurred in a thread (LP: #1033902).
    - apport-retrace: Disallow option -C without option -S. Thanks Kyle
      Nitzsche.
    - fileutils.py, mark_report_upload(): Refresh the .upload stamps if a
      previous version of the report was already uploaded, but another
      instance of the problem happened since then. Thanks Brian Murray. (LP:
      #1084296)
    - Ignore implausibly low addresses when computing
      StacktraceAddressSignature.  These are usually artifacts from gdb when
      not having debug symbols, and having too many of them prevents proper
      client-side duplicate detection and proper bucketing in daisy.
      (LP: #1084996)
    - fileutils.py: Ignore .desktop files with NoDisplay=true. (LP: #1048524)
  * debian/tests/control: Run tests as root, just like before switching our
    autopkgtests to run as user "ubuntu" by default. This enables a couple of
    extra tests, and avoids some confusion because the distro and the user
    name are identical.
  * data/package-hooks/source_linux-nexus7.py: Fix PEP-8 error.
 -- Martin Pitt <martin.pitt at ubuntu.com>   Fri, 30 Nov 2012 18:00:01 +0100

** Changed in: apport (Ubuntu Raring)
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/997359

Title:
  nih uses eglibc private symbol __abort_msg

Status in NIH Utility Library:
  New
Status in “apport” package in Ubuntu:
  Fix Released
Status in “libnih” package in Ubuntu:
  Fix Released
Status in “apport” source package in Precise:
  New
Status in “libnih” source package in Precise:
  New
Status in “apport” source package in Quantal:
  New
Status in “libnih” source package in Quantal:
  New
Status in “apport” source package in Raring:
  Fix Released
Status in “libnih” source package in Raring:
  Fix Released

Bug description:
  NIH uses the private eglibc '__abort_msg' symbol to save a string
  explaining why nih_assert() failed. However, __abort_msg is not a
  public symbol which causes problems when libc is upgraded - it
  actually necessitates that for every libc upgrade on, for example,
  Ubuntu systems the following has to happen:

  1) eglibc is upgraded with a version set to <version>~foo
  2) nih is rebuilt against the eglibc version
  3) nih is upgraded.
  4) the eglibc package is upgraded *again* to drop the ~foo.

  The symbol can be made use of like this:

  $ cat >foo.c<<EOF
  int
  main(int argc, char *argv[])
  {
      nih_log_set_priority (NIH_LOG_FATAL);
      nih_assert (0 == 1);

      exit (EXIT_SUCCESS);
  }
  EOF
  $ gcc -std=gnu99 -g -Wall -pedantic -o foo foo.c `pkg-config --cflags --libs libnih`
  $ ./foo
  (null):nih_make_core.c:46: Assertion failed in main: 0 == 1
  Aborted (core dumped)
  $ gdb foo core.1597
  GNU gdb (Ubuntu/Linaro 7.4-2012.04-0ubuntu1) 7.4-2012.04
  Copyright (C) 2012 Free Software Foundation, Inc.
  License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
  This is free software: you are free to change and redistribute it.
  There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
  and "show warranty" for details.
  This GDB was configured as "i686-linux-gnu".
  For bug reporting instructions, please see:
  <http://bugs.launchpad.net/gdb-linaro/>...
  Reading symbols from /home/james/src/c/foo...done.
  [New LWP 1597]
  [Thread debugging using libthread_db enabled]
  Using host libthread_db library "/lib/i386-linux-gnu/libthread_db.so.1".
  Core was generated by `foo'.
  Program terminated with signal 6, Aborted.
  #0  0xb770d1b2 in _dl_sysinfo_int80 () from /lib/ld-linux.so.2
  (gdb) p (char *)__abort_msg
  $1 = 0x93fa098 "nih_make_core.c:46: Assertion failed in main: 0 == 1"
  (gdb)

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