Description

colesbury

opened on Sep 22, 2023

Issue body actions

Feature or enhancement

Context:

• PEP 703 (Build Configuration Changes)
• PEP 3149 – ABI version tagged .so files

The --disable-gil builds will have a different version specific ABI from the default CPython 3.13 builds due to reference counting differences and other changes. This should be indicated by a "t" (for "threading") in the ABI tag.

On POSIX, this is achieved by setting the ABIFLAGS variable, which feeds into the sysconfig EXT_SUFFIX and SOABI variables. The version specific shared libraries would look like:

• package.cpython-313t-darwin.so

On Windows, this is achieved by setting PYD_TAGGED_SUFFIX, which feeds into the sysconfig EXT_SUFFIX. The shared libraries using the version specific ABI would look like:

• _package.cp313t-win_amd64.pyd

Note that this does not address and is independent of the stable ABI. There's ongoing discussion about how best to support the stable ABI in --disable-gil builds.

cc @gpshead @brettcannon @vstinner

Linked PRs

• gh-109740: Use 't' in --disable-gil SOABI #109922

Reacted by Gregory P. Smith

Reacted by stonebig

Activity

1. colesbury

   added

   type-featureA feature request or enhancementA feature request or enhancement

   3.13only security fixesonly security fixes

   on Sep 22, 2023
2. vstinner commented on Sep 22, 2023

   

   vstinner

   on Sep 22, 2023

   Member

   More actions

   Yep, I'm fine with "t" tag. Try to write a test to ensure that if Python is built with NoGIL, the tag is present. Maybe added it in test_sys which can check sys.abiflags.

   Reacted by Sam Gross, Gregory P. Smith and Itamar Oren
3. colesbury

   self-assigned this

   on Sep 22, 2023
4. AA-Turner

   added

   buildThe build process and cross-buildThe build process and cross-build

   on Sep 22, 2023
5. colesbury

   added 2 commits that reference this issue on Sep 26, 2023

   pythongh-109740: Use 't' in `--disable-gil` SOABI

   9890f14

   pythongh-109740: Use 't' in `--disable-gil` SOABI

   e745f32
6. vstinner

   added a commit that references this issue on Sep 27, 2023

   gh-109740: Use 't' in `--disable-gil` SOABI (#109922)

   773614e
7. csm10495

   added a commit that references this issue on Sep 28, 2023

   pythongh-109740: Use 't' in `--disable-gil` SOABI (python#109922)

   9e0dbb9
8. colesbury commented on Oct 6, 2023

   

   colesbury

   on Oct 6, 2023

   ContributorAuthor

   More actions

   This is implemented, although there are still some follow-up tasks.
9. colesbury

   closed this as completedon Oct 6, 2023
10. Glyphack

    added a commit that references this issue on Sep 2, 2024

    pythongh-109740: Use 't' in `--disable-gil` SOABI (python#109922)

    292ac4f

Issue actions