[Bug 898077] [NEW] backtrace fails with recursive functions on 64bit (BZ #12432)

[Walter Schneider]

Public bug reported:

This is alredy fixed in (e)glibc 2.14

http://sources.redhat.com/bugzilla/show_bug.cgi?id=12432

 [BZ #12432]
 * sysdeps/ia64/backtrace.c (struct trace_reg): Add cfa element.
 (dummy_getcfa): New function.
 (init): Get _Unwind_GetCFA address, use dummy if not found.
 (backtrace_helper): In recursion check, also check whether CFA changes.
 (__backtrace): Completely initialize arg.


I suggest to backport this fix to (e)glibc 2.12/2.13 for ubuntu maverick/natty/oneiric.

Pacth has been tested for 
eglibc_2.12.1-0ubuntu10.2

** Affects: eglibc (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/898077

Title:
  backtrace fails with recursive functions on 64bit (BZ #12432)

Status in “eglibc” package in Ubuntu:
  New

Bug description:
  This is alredy fixed in (e)glibc 2.14

  http://sources.redhat.com/bugzilla/show_bug.cgi?id=12432

   [BZ #12432]
   * sysdeps/ia64/backtrace.c (struct trace_reg): Add cfa element.
   (dummy_getcfa): New function.
   (init): Get _Unwind_GetCFA address, use dummy if not found.
   (backtrace_helper): In recursion check, also check whether CFA changes.
   (__backtrace): Completely initialize arg.

  
  I suggest to backport this fix to (e)glibc 2.12/2.13 for ubuntu maverick/natty/oneiric.

  Pacth has been tested for 
  eglibc_2.12.1-0ubuntu10.2

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