Gentoo Websites Logo
Go to: Gentoo Home Documentation Forums Lists Bugs Planet Store Wiki Get Gentoo!
Bug 862468 - [guru] dev-python/pytest-pythonpath-0.7.3 fails tests (lto)
Summary: [guru] dev-python/pytest-pythonpath-0.7.3 fails tests (lto)
Status: RESOLVED FIXED
Alias: None
Product: GURU
Classification: Unclassified
Component: Package issues (show other bugs)
Hardware: All Linux
: Normal normal
Assignee: GURU project
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2022-07-31 07:39 UTC by Agostino Sarubbo
Modified: 2022-11-01 10:17 UTC (History)
0 users

See Also:
Package list:
Runtime testing required: ---


Attachments
build.log (build.log,48.82 KB, text/plain)
2022-07-31 07:39 UTC, Agostino Sarubbo
Details

Note You need to log in before you can comment on or make changes to this bug.
Description Agostino Sarubbo gentoo-dev 2022-07-31 07:39:31 UTC
https://blogs.gentoo.org/ago/2020/07/04/gentoo-tinderbox/

Issue: dev-python/pytest-pythonpath-0.7.3 fails tests (lto).
Discovered on: amd64 (internal ref: guru_tinderbox)

NOTE:
This machine uses lto with CFLAGS=-flto -Werror=odr -Werror=lto-type-mismatch -Werror=strict-aliasing

Here is a bit of explanation:

-Werror=lto-type-mismatch:
User to find possible runtime issues in packages. It likely means the package is unsafe to build & use with LTO.
For projects using the same identifier but with different types across different files, they must be fixed to be consistent across the codebase.

-Werror=odr:
Used to find possible runtime issues in packages. These bugs are a problem anyway but may be even worse when combined with LTO. C++ code must comply with the One Definition Rule (ODR) - see https://en.cppreference.com/w/cpp/language/definition#One_Definition_Rule.

-Werror=strict-aliasing:
Used to find possible runtime issues in packages. These bugs are a problem anyway but may be even worse when combined with LTO.

Workarounds:
- If upstream is friendly and still active, file a bug upstream. For emulators, codecs, games, or multimedia packages, it may be worth just applying a workaround instead, as upstreams sometimes aren't receptive to these bugs (VALID FOR ALL).
- Use the new 'filter-lto' from flag-o-matic.eclass as it's likely to be unsafe with LTO (VALID FOR lto-type-mismatch - odr).
- Fix it yourself if interested, of course (VALID FOR ALL).
- Append-flags -fno-strict-aliasing (VALID FOR strict-aliasing).
- Use memcpy() but a union is sometimes suitable too (VALID FOR strict-aliasing).
- -fstrict-aliasing is implied by -O2, so this must be addressed in some form (VALID FOR strict-aliasing).

See also: https://marc.info/?l=gentoo-dev&m=165639574126280&w=2
Comment 1 Agostino Sarubbo gentoo-dev 2022-07-31 07:39:33 UTC
Created attachment 795994 [details]
build.log

build log and emerge --info
Comment 2 Agostino Sarubbo gentoo-dev 2022-07-31 07:39:34 UTC
Error(s) that match a know pattern:


KeyError: 'python_paths'
ValueError: ('unknown configuration type: pathlist', 'test_path/apps test_path/libs')
Comment 3 Larry the Git Cow gentoo-dev 2022-11-01 10:17:05 UTC
The bug has been closed via the following commit(s):

https://gitweb.gentoo.org/repo/proj/guru.git/commit/?id=84c7e3e6d6b766f84e83df0742a1c2105420c259

commit 84c7e3e6d6b766f84e83df0742a1c2105420c259
Author:     Anna (cybertailor) Vyalkova <cyber+gentoo@sysrq.in>
AuthorDate: 2022-11-01 09:05:05 +0000
Commit:     Anna (cybertailor) Vyalkova <cyber+gentoo@sysrq.in>
CommitDate: 2022-11-01 09:05:21 +0000

    dev-python/pytest-pythonpath: treeclean
    
    Closes: https://bugs.gentoo.org/862468
    Closes: https://bugs.gentoo.org/848282
    Signed-off-by: Anna (cybertailor) Vyalkova <cyber+gentoo@sysrq.in>

 dev-python/pytest-pythonpath/Manifest              |  1 -
 dev-python/pytest-pythonpath/metadata.xml          |  9 --------
 .../pytest-pythonpath-0.7.3.ebuild                 | 25 ----------------------
 3 files changed, 35 deletions(-)