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* gh-112844: Update CPE references for external dependencies (#118521)Seth Michael Larson2024-05-201-1/+15
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* GH-118943: Fix a race condition when generating jit_stencils.h (GH-118957)Brandt Bucher2024-05-161-7/+12
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* Explain how to install LLVM on Fedora (GH-118983)Miro Hrončok2024-05-161-0/+6
| | | Co-authored-by: Erlend E. Aasland <erlend.aasland@protonmail.com>
* GH-118836: Fix JIT build error when SHT_NOTE section is present (GH-119000)Michał Górny2024-05-131-0/+1
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* gh-117657: Log TSAN warnings to separate files and archive them (#118747)mpage2024-05-101-0/+3
| | | | | | | This ensures we don't lose races that occur in subprocesses or interleave races from workers running in parallel. Log files are collected and packaged into a zipfile that can be downloaded from the "Artifacts" section of the workflow run.
* GH-118910: Less boilerplate in the tier 2 optimizer (#118913)Mark Shannon2024-05-101-3/+0
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* gh-117657: Fix QSBR race condition (#118843)Alex Turner2024-05-101-1/+0
| | | | | | `_Py_qsbr_unregister` is called when the PyThreadState is already detached, so the access to `tstate->qsbr` isn't safe without locking the shared mutex. Grab the `struct _qsbr_shared` from the interpreter instead.
* gh-117657: Fix data races reported by TSAN on `interp->threads.main` (#118865)mpage2024-05-101-2/+0
| | | Use relaxed loads/stores when reading/writing to this field.
* gh-117657: Replace TSAN suppresions with more specific rules (#118722)Brett Simmers2024-05-091-24/+81
| | | | | | | | | Using `race:` filters out warnings if the function appears anywhere in the stack trace. This can hide a lot of unrelated warnings, especially for a function like `_PyEval_EvalFrameDefault`, which is somewhere on the stack more often than not. Change all free-threaded suppressions to `race_top:`, which only matches the top frame, and add any new suppressions this exposes.
* gh-117657: Fix data races when writing / reading `ob_gc_bits` (#118292)mpage2024-05-081-3/+0
| | | | | Use relaxed atomics when reading / writing to the field. There are still a few places in the GC where we do not use atomics. Those should be safe as the world is stopped.
* gh-118671: Updated dead ActiveState links (#118730)trag1c2024-05-081-2/+2
| | | | | Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com> Co-authored-by: Kirill Podoprigora <kirill.bast9@mail.ru>
* gh-118518: Allow perf to work without frame pointers (#112254)Pablo Galindo Salgado2024-05-051-0/+2
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* build(deps): bump hypothesis from 6.100.0 to 6.100.2 in /Tools (#118462)dependabot[bot]2024-05-041-1/+1
| | | | | Bumps [hypothesis](https://github.com/HypothesisWorks/hypothesis) from 6.100.0 to 6.100.2. - [Release notes](https://github.com/HypothesisWorks/hypothesis/releases) - [Commits](https://github.com/HypothesisWorks/hypothesis/compare/hypothesis-python-6.100.0...hypothesis-python-6.100.2)
* gh-74929: Implement PEP 667 (GH-115153)Tian Gao2024-05-041-0/+1
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* gh-111997: C-API for signalling monitoring events (#116413)Irit Katriel2024-05-041-0/+1
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* GH-113464: Generate a more efficient JIT (GH-118512)Brandt Bucher2024-05-032-81/+142
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* gh-117657: Disable the function/code cache in free-threaded builds (#118301)mpage2024-05-031-1/+0
| | | | This is only used by the specializing interpreter and the tier 2 optimizer, both of which are disabled in free-threaded builds.
* GH-118251: Skip fewer test in emulated JIT CI (GH-118536)Savannah Ostrowski2024-05-031-0/+79
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* GH-118487: Add Black to `.pre-commit-config.yaml` for JIT files (GH-118537)Savannah Ostrowski2024-05-031-2/+9
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* gh-116126: Implement PEP 696 (#116129)Jelle Zijlstra2024-05-031-0/+2
| | | | | Co-authored-by: Alex Waygood <Alex.Waygood@Gmail.com> Co-authored-by: Bénédikt Tran <10796600+picnixz@users.noreply.github.com> Co-authored-by: Shantanu <12621235+hauntsaninja@users.noreply.github.com>
* gh-116738: Make `_codecs` module thread-safe (#117530)Brett Simmers2024-05-021-1/+1
| | | | | | | | | | | | | | | The module itself is a thin wrapper around calls to functions in `Python/codecs.c`, so that's where the meaningful changes happened: - Move codecs-related state that lives on `PyInterpreterState` to a struct declared in `pycore_codecs.h`. - In free-threaded builds, add a mutex to `codecs_state` to synchronize operations on `search_path`. Because `search_path_mutex` is used as a normal mutex and not a critical section, we must be extremely careful with operations called while holding it. - The codec registry is explicitly initialized as part of `_PyUnicode_InitEncodings` to simplify thread-safety.
* GH-117442: Check eval-breaker at start (rather than end) of tier 2 loops ↵Mark Shannon2024-05-021-1/+0
| | | | (GH-118482)
* gdb/libpython.py: Update PyLongObjectPtr docstring (GH-118438)Andrej2024-05-021-6/+10
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* GH-113464: Display a warning when building the JIT (GH-118481)Brandt Bucher2024-05-016-26/+38
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* build(deps-dev): bump types-psutil from 5.9.5.20240316 to 5.9.5.20240423 in ↵dependabot[bot]2024-05-011-1/+1
| | | | | | /Tools (#118464) Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
* Bump types-setuptools from 69.2.0.20240317 to 69.5.0.20240423 in /Tools ↵dependabot[bot]2024-05-011-1/+1
| | | | | | (#118463) Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
* Bump mypy from 1.9.0 to 1.10.0 in /Tools (#118461)dependabot[bot]2024-05-011-1/+1
| | | | Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
* GH-115802: Use the GHC calling convention in JIT code (GH-118287)Brandt Bucher2024-05-014-11/+76
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* gh-118335: Configure Tier 2 interpreter at build time (#118339)Guido van Rossum2024-05-012-3/+4
| | | | | | | | | | | | | | | | | | | | | | The code for Tier 2 is now only compiled when configured with `--enable-experimental-jit[=yes|interpreter]`. We drop support for `PYTHON_UOPS` and -`Xuops`, but you can disable the interpreter or JIT at runtime by setting `PYTHON_JIT=0`. You can also build it without enabling it by default using `--enable-experimental-jit=yes-off`; enable with `PYTHON_JIT=1`. On Windows, the `build.bat` script supports `--experimental-jit`, `--experimental-jit-off`, `--experimental-interpreter`. In the C code, `_Py_JIT` is defined as before when the JIT is enabled; the new variable `_Py_TIER2` is defined when the JIT *or* the interpreter is enabled. It is actually a bitmask: 1: JIT; 2: default-off; 4: interpreter.
* gh-116122: Add SBOM generation to PCbuild/build.bat (GH-116138)Seth Michael Larson2024-04-301-3/+18
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* GH-118306: Update JIT to use LLVM 18 (GH-118307)Savannah Ostrowski2024-04-295-34/+43
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* gh-118347: Fix Windows installer not updating launcher (GH-118386)Steve Dower2024-04-292-6/+6
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* gh-117657: TSAN fix race on `gstate->young.count` (#118313)Alex Turner2024-04-291-1/+0
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* Fix typo in Tools/wasm/README.md(#118358)Xie Yanbo2024-04-281-1/+1
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* GH-118095: Add dynamic exit support and FOR_ITER_GEN support to tier 2 ↵Mark Shannon2024-04-261-0/+4
| | | | (GH-118279)
* gh-117657: Fix race data race in `_Py_IsOwnedByCurrentThread()` (#118258)mpage2024-04-261-1/+0
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* gh-117657: Fixes a few small TSAN issues in dictobject (#118200)Dino Viehland2024-04-251-3/+0
| | | | Fixup TSAN errors for dict
* gh-117657: Add a couple more TSAN suppressions (#118256)mpage2024-04-251-0/+5
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* gh-117657: Fix data race in `_Py_IsImmortal` (#118261)mpage2024-04-251-1/+0
| | | | The load of `ob_ref_local races with stores. Using a relaxed load is sufficient; stores to the field are relaxed.
* gh-116988: Remove duplicates of `annotated_rhs` in the Grammar (#117004)David Rubin2024-04-241-1/+1
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* gh-76785: Rename _xxsubinterpreters to _interpreters (gh-117791)Eric Snow2024-04-242-8/+5
| | | See https://discuss.python.org/t/pep-734-multiple-interpreters-in-the-stdlib/41147/26.
* gh-112075: Make instance attributes stored in inline "dict" thread safe ↵Dino Viehland2024-04-221-0/+1
| | | | | (#114742) Make instance attributes stored in inline "dict" thread safe on free-threaded builds
* gh-116818: Make `sys.settrace`, `sys.setprofile`, and monitoring thread-safe ↵Dino Viehland2024-04-191-0/+1
| | | | | | | (#116775) Makes sys.settrace, sys.setprofile, and monitoring generally thread-safe. Mostly uses a stop-the-world approach and synchronization around the code object's _co_instrumentation_version. There may be a little bit of extra synchronization around the monitoring data that's required to be TSAN clean.
* gh-117657: use relaxed loads for checking dict keys immortality (#118067)Dino Viehland2024-04-191-2/+0
| | | Use relaxed load to check if dictkeys are immortal
* GH-115419: Improve list of escaping functions (GH-118054)Mark Shannon2024-04-191-0/+10
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* build(deps): bump hypothesis from 6.98.15 to 6.100.0 in /Tools (#117416)dependabot[bot]2024-04-191-1/+1
| | | | | | | | | | | | | | | Bumps [hypothesis](https://github.com/HypothesisWorks/hypothesis) from 6.98.15 to 6.100.0. - [Release notes](https://github.com/HypothesisWorks/hypothesis/releases) - [Commits](https://github.com/HypothesisWorks/hypothesis/compare/hypothesis-python-6.98.15...hypothesis-python-6.100.0) --- updated-dependencies: - dependency-name: hypothesis dependency-type: direct:production update-type: version-update:semver-minor ... Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
* gh-117613: Argument Clinic: disallow defining class parameter at module ↵neonene2024-04-171-0/+2
| | | | level (#117950)
* gh-117657: Quiet erroneous TSAN reports of data races in `_PySeqLock` (#117955)mpage2024-04-171-2/+0
| | | | | | | | Quiet erroneous TSAN reports of data races in `_PySeqLock` TSAN reports a couple of data races between the compare/exchange in `_PySeqLock_LockWrite` and the non-atomic loads in `_PySeqLock_{Abandon,Unlock}Write`. This is another instance of TSAN incorrectly modeling failed compare/exchange as a write instead of a load.
* gh-117657: Fix data races in the method cache in free-threaded builds (#117954)mpage2024-04-171-1/+0
| | | | | | | | | Fix data races in the method cache in free-threaded builds These are technically data races, but I think they're benign (to the extent that that is actually possible). We update cache entries non-atomically but read them atomically from another thread, and there's nothing that establishes a happens-before relationship between the reads and writes that I can see.
* gh-117680: make _PyInstructionSequence a PyObject and use it in tests (#117629)Irit Katriel2024-04-171-0/+1
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