gdb/2171: No backtrace generated on amd64

Daniel Jacobowitz
Sat Sep 16 00:18:00 GMT 2006

The following reply was made to PR gdb/2171; it has been noted by GNATS.

From: Daniel Jacobowitz <>
Subject: Re: gdb/2171: No backtrace generated on amd64
Date: Fri, 15 Sep 2006 20:12:43 -0400

 On Sat, Sep 16, 2006 at 12:05:32AM -0000, wrote:
 > And the coredump has debugging symbols in it:
 Core dumps do not contain real symbol information.
 > > # gdb php core
 > > GNU gdb 6.5
 > > This GDB was configured as "x86_64-pc-linux-gnu"...Using host libthread_db library "/lib/tls/".
 > > Core was generated by `php -e test.php'.
 > > Program terminated with signal 11, Segmentation fault.
 > > #0  0x00002aaaac8d1e44 in ?? ()
 This is a shared library address.  Does info shared work?  It looks
 like your system libraries are undebuggable, not the binary itself.
 Daniel Jacobowitz

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