Re: Strange system behavior

[Paul Goyette <paul%whooppee.com@localhost>]

On Mon, 20 Sep 2010, Paul Goyette wrote:

> Gdb analysis of the core dump contains a rather scary warning about libc not 
> being found at the expected address:
>
> {105} gdb /test-bed/tools/bin/nbmandoc nbmandoc.core        GNU gdb 6.5
> Copyright (C) 2006 Free Software Foundation, Inc.
> GDB is free software, covered by the GNU General Public License, and you are
> welcome to change it and/or distribute copies of it under certain conditions.
> Type "show copying" to see the conditions.
> There is absolutely no warranty for GDB.  Type "show warranty" for details.
> This GDB was configured as "x86_64--netbsd"...(no debugging symbols found)
>
> Reading symbols from /usr/lib/libz.so.1...(no debugging symbols 
> found)...done.
> Loaded symbols for /usr/lib/libz.so.1
> Reading symbols from /usr/lib/libc.so.12...(no debugging symbols 
> found)...done.
> Loaded symbols for /usr/lib/libc.so.12
> Reading symbols from /usr/libexec/ld.elf_so...(no debugging symbols 
> found)...done.
> Loaded symbols for /usr/libexec/ld.elf_so
> Core was generated by `nbmandoc'.
> Program terminated with signal 11, Segmentation fault.
> #0  0x00007f7ffdb5e040 in ?? ()
> warning: .dynamic section for "/test-bed/dst/usr/lib/libc.so.12" is not at 
> the expected address
> (no debugging symbols found)
> (no debugging symbols found)
> (no debugging symbols found)
> (gdb)

Can anyone explain why the "warning: .dynamic section ..." message 
refers to /test-bed/dst/usr/lib/libc.so.12 ?  The "loading symbols" 
messages clearly show that libc should be found in /usr/lib and ldd on 
nbmand agrees:

{106} ldd /test-bed/tools/bin/nbmandoc
/test-bed/tools/bin/nbmandoc:
        -lz.1 => /usr/lib/libz.so.1
        -lc.12 => /usr/lib/libc.so.12
{107}


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