[Bug 213764] System gdb produces an error when attaching to files built with -g

bugzilla-noreply at freebsd.org bugzilla-noreply at freebsd.org
Tue Oct 25 07:08:35 UTC 2016


https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=213764

            Bug ID: 213764
           Summary: System gdb produces an error when attaching to files
                    built with -g
           Product: Base System
           Version: 10.3-RELEASE
          Hardware: i386
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: gnu
          Assignee: freebsd-bugs at FreeBSD.org
          Reporter: alexander.klein at physiologie.med.uni-giessen.de
                CC: freebsd-i386 at FreeBSD.org
                CC: freebsd-i386 at FreeBSD.org

I built vi from /usr/src/usr.bin/vi with CFLAGS=-g for debugging purposes.

When attaching the gdb included with the system to a vi-process, however, I get
the following error:

% gdb
GNU gdb 6.1.1 [FreeBSD]
Copyright 2004 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 "i386-marcel-freebsd".
(gdb) attach 6239
Attaching to process 6239
/usr/src/gnu/usr.bin/gdb/libgdb/../../../../contrib/gdb/gdb/solib-svr4.c:1444:
internal-error: legacy_fetch_link_map_offsets called without legacy link_map
support enabled.
A problem internal to GDB has been detected,
further debugging may prove unreliable.
Quit this debugging session? (y or n) n

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