[Bug 1076454] Re: /usr/share/go/src/pkg/runtime is not on gdb's auto-load safe-path

[Michael Hudson-Doyle]

** Package changed: golang (Ubuntu) => golang-1.6 (Ubuntu)

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Title:
  /usr/share/go/src/pkg/runtime is not on gdb's auto-load safe-path

Status in golang-1.6 package in Ubuntu:
  Confirmed

Bug description:
  Config
  ======

  # series
  $ lsb_release -rd
  Description:	Ubuntu 12.10
  Release:	12.10

  # pkg
  $ apt-cache policy golang-src
  golang-src:
    Installed: 2:1.0.2-2
    Candidate: 2:1.0.2-2
    Version table:
   *** 2:1.0.2-2 0
          500 http://us.archive.ubuntu.com/ubuntu/ quantal/universe i386 Packages


  Problem
  =======

  Gdb is the canonical debugger for go programs. Package golang-src
  provides a python file  /usr/share/go/src/pkg/runtime/runtime-gdb.py
  to assist go programmers with specialized gdb commands (I don't really
  know just how useful they are). gdb complains when it starts that it
  can't load /usr/share/go/src/pkg/runtime/runtime-gdb.py because its
  not on the "auto-load safe-path":

  $ gdb ./hello 
  GNU gdb (GDB) 7.5-ubuntu
  Copyright (C) 2012 Free Software Foundation, Inc.
  License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
  This is free software: you are free to change and redistribute it.
  There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
  and "show warranty" for details.
  This GDB was configured as "i686-linux-gnu".
  For bug reporting instructions, please see:
  <http://www.gnu.org/software/gdb/bugs/>...
  Reading symbols from /home/mcarifio/tech/golang/workspace/src/hello/hello...done.
  warning: File "/usr/share/go/src/pkg/runtime/runtime-gdb.py" auto-loading has been declined by your `auto-load safe-path' set to "$debugdir:$datadir/auto-load".
  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ warning above
  (gdb) 

  
  I mitigated this by adding the following gdb directive in /etc/gdb/gdbinit:

  add-auto-load-safe-path /usr/share/go/src/pkg/runtime

  Then:

  $ gdb ./hello 
  GNU gdb (GDB) 7.5-ubuntu
  Copyright (C) 2012 Free Software Foundation, Inc.
  License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
  This is free software: you are free to change and redistribute it.
  There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
  and "show warranty" for details.
  This GDB was configured as "i686-linux-gnu".
  For bug reporting instructions, please see:
  <http://www.gnu.org/software/gdb/bugs/>...
  Reading symbols from /home/mcarifio/tech/golang/workspace/src/hello/hello...done.
  Loading Go Runtime support.
  ^^^^^^^^^^^^^^^^^^^^^^^^^^ success indicated above
  (gdb) 

  
  I'm not sure how best to solve this in general, but golang-src probably needs to configure gdb to accept
  /usr/share/go/src/pkg/runtime/runtime-gdb.py as safe.

  It took me a little while to figure out how auto-load safe-path works,
  how gdb initializes on start, where the files are located such as
  /etc/gdb/gdbinit and ~/.gdbinit. So it takes a little investigation
  for a programmer to reconstruct what I did above. But its also a
  fixable annoyance.

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