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Date: Sat, 21 Jun 2008 14:14:00 -0000
From: Andrew Cagney <cagney@redhat.com>
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To: frysk <frysk@sources.redhat.com>
Subject: back-traces back to normal
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FYI,

I've been fixing a number of symbol related problems that can be seen 
when doing backtraces, for instance:

On F-9:
  $ ./frysk/bindir/fstack $$
  Task #18929
  #0 0x000000310d49a835 in __waitpid() from libc-2.7.so
  #1 0x0000000000435a51 in [unknown] from bash
  #2 0x000000000043786e in wait_for() from bash
  ...
frame #1 is now correctly reporting [unknown], an elfutils regression 
was causing _start to be printed.

and on F-8:
  $ ./frysk/bindir/fstack $$
  Task #11813
  #0 0x00110416 in __kernel_vsyscall() from [vdso]
  #1 0x0807d210 in wait_for() from bash
  ...
frame #1 has [vdso] and the symbol appearing again, a fix while 
converting cni to jni caused this

I've added/enabled tests to check for both of these cases.

Andrew