Python 2.x breaks with address sanitizer

[hannob]

BPO	24061
Nosy	@benjaminp, @hannob
Files	python-2.7.9-workaround-asan.diff: patch / address sanitizer workaround

^{Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.}

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GitHub fields:

assignee = None
closed_at = <Date 2015-04-27.00:35:05.899>
created_at = <Date 2015-04-26.13:17:30.067>
labels = ['type-feature']
title = 'Python 2.x breaks with address sanitizer'
updated_at = <Date 2015-04-27.00:35:05.801>
user = 'https://github.com/hannob'

bugs.python.org fields:

activity = <Date 2015-04-27.00:35:05.801>
actor = 'python-dev'
assignee = 'none'
closed = True
closed_date = <Date 2015-04-27.00:35:05.899>
closer = 'python-dev'
components = []
creation = <Date 2015-04-26.13:17:30.067>
creator = 'hanno'
dependencies = []
files = ['39208']
hgrepos = []
issue_num = 24061
keywords = ['patch']
message_count = 2.0
messages = ['242055', '242088']
nosy_count = 3.0
nosy_names = ['benjamin.peterson', 'python-dev', 'hanno']
pr_nums = []
priority = 'normal'
resolution = 'fixed'
stage = 'resolved'
status = 'closed'
superseder = None
type = 'enhancement'
url = 'https://bugs.python.org/issue24061'
versions = ['Python 2.7']

[hannob]

Right now it is not possible to build python 2.7.9 with address sanitizer. This issue has been worked around for python 3 in bug bpo-18596 by marking some functions with attributes to tell address sanitizer to ignore them.

I have attached a patch that will apply the same workaround to python 2.7. I'd apprechiate if this could be applied before the next python 2 release. Although it's the "old" python 2 version I think this is important enough to be backported.

[python-dev]

New changeset 4234b0dd2a54 by Benjamin Peterson in branch '2.7':
allow 2.7 to be built with asan (closes bpo-24061)
https://hg.python.org/cpython/rev/4234b0dd2a54