[Bug 1166304] Re: FFe for gdb 7.6

[Alastair Rankine]

Adding python3 support is a mistake IMHO, at least until all packaged
gdb python code is upgraded to support it. And by this I'm mainly
thinking of the libstdc++ pretty printers, as provided by the various
libstdc++6-4.x-dbg packages. Currently these modules are not usable, and
give the following error when you try to load them (see below).

Obviously the various pretty printers should be upgraded to be
compatible with python 3, but in the meantime I think we should be
preferring python2 (2.7 possibly?)

% gdb
GNU gdb (GDB) 7.5.91.20130408-cvs-ubuntu
Copyright (C) 2013 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 "x86_64-linux-gnu".
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>.
(gdb) python
>import sys
>sys.path.insert(0, "/usr/share/gcc-4.8/python")
>from libstdcxx.v6.printers import register_libstdcxx_printers
>register_libstdcxx_printers (None)
>Traceback (most recent call last):
  File "<string>", line 3, in <module>
  File "/usr/share/gcc-4.8/python/libstdcxx/v6/printers.py", line 54
    raise ValueError, "Cannot find type %s::%s" % (str(orig), name)
                    ^
SyntaxError: invalid syntax
Error while executing Python code.
(gdb)

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https://bugs.launchpad.net/bugs/1166304

Title:
  FFe for gdb 7.6

Status in “gdb” package in Ubuntu:
  Fix Released

Bug description:
  built here, testsuite looks good on all architectures
  https://launchpad.net/~ubuntu-toolchain-r/+archive/ppa/+build/4477460

  adds aarch64 support.

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