Commit Graph

238 Commits

Author SHA1 Message Date
Steve Dower 2894aa14f2
gh-121115: Skip __index__ in PyLong_AsNativeBytes by default (GH-121118) 2024-06-28 16:26:21 +01:00
Victor Stinner 2e157851e3
gh-119182: Add PyUnicodeWriter_WriteUCS4() function (#120849) 2024-06-24 17:40:39 +02:00
Serhiy Storchaka 6eb23b1311
gh-70278: Fix PyUnicode_FromFormat() with precision for %s and %V (GH-120365)
PyUnicode_FromFormat() no longer produces the ending \ufffd
character for truncated C string when use precision with %s and %V.
It now truncates the string before the start of truncated multibyte sequences.
2024-06-24 18:07:07 +03:00
Victor Stinner 913a956d85
gh-119182: Rewrite PyUnicodeWriter tests in Python (#120845) 2024-06-21 20:15:06 +02:00
Victor Stinner e9f4d80fa6
gh-120417: Add #noqa: F401 to tests (#120627)
Ignore linter "imported but unused" warnings in tests when the linter
doesn't understand how the import is used.
2024-06-18 15:51:47 +00:00
Sam Gross e8752d7b80
gh-118789: Add `PyUnstable_Object_ClearWeakRefsNoCallbacks` (#118807)
This exposes `PyUnstable_Object_ClearWeakRefsNoCallbacks` as an unstable
C-API function to provide a thread-safe mechanism for clearing weakrefs
without executing callbacks.

Some C-API extensions need to clear weakrefs without calling callbacks,
such as after running finalizers like we do in subtype_dealloc.
Previously they could use `_PyWeakref_ClearRef` on each weakref, but
that's not thread-safe in the free-threaded build.

Co-authored-by: Petr Viktorin <encukou@gmail.com>
2024-06-18 09:57:23 -04:00
Victor Stinner c608477532
gh-120417: Remove unused imports in tests (part 1) (#120629) 2024-06-17 21:05:56 +02:00
Mark Shannon 274f844830
GH-120619: Clean up `RETURN_VALUE` instruction (GH-120624)
* Rename _POP_FRAME to _RETURN_VALUE as it returns a value as well as popping a frame.

* Remove remaining _POP_FRAMEs
2024-06-17 14:40:11 +01:00
Saul Shanabrook 55402d3232
gh-119258: Eliminate Type Guards in Tier 2 Optimizer with Watcher (GH-119365)
Co-authored-by: parmeggiani <parmeggiani@spaziodati.eu>
Co-authored-by: dpdani <git@danieleparmeggiani.me>
Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com>
Co-authored-by: Brandt Bucher <brandtbucher@microsoft.com>
Co-authored-by: Ken Jin <kenjin@python.org>
2024-06-08 17:41:45 +08:00
Sergey B Kirpichev 61d3ab32da
gh-116560: Add PyLong_GetSign() public function (#116561)
Co-authored-by: Victor Stinner <vstinner@python.org>
2024-06-03 14:06:31 +02:00
Nikita Sobolev 4aed319a8e
gh-119775: Remove ability to create immutable types with mutable bases (#119776) 2024-06-02 07:27:20 +00:00
Sam Gross bcc1be39cb
gh-119585: Fix crash involving `PyGILState_Release()` and `PyThreadState_Clear()` (#119753)
Make sure that `gilstate_counter` is not zero in when calling
`PyThreadState_Clear()`. A destructor called from `PyThreadState_Clear()` may
call back into `PyGILState_Ensure()` and `PyGILState_Release()`. If
`gilstate_counter` is zero, it will try to create a new thread state before
the current active thread state is destroyed, leading to an assertion failure
or crash.
2024-05-31 10:50:52 -04:00
Eric Snow 81865002ae
gh-119213: Be More Careful About _PyArg_Parser.kwtuple Across Interpreters (gh-119331)
_PyArg_Parser holds static global data generated for modules by Argument Clinic.  The _PyArg_Parser.kwtuple field is a tuple object, even though it's stored within a static global.  In some cases the tuple is statically allocated and thus it's okay that it gets shared by multiple interpreters.  However, in other cases the tuple is set lazily, allocated from the heap using the active interprepreter at the point the tuple is needed.

This is a problem once that interpreter is destroyed since _PyArg_Parser.kwtuple becomes at dangling pointer, leading to crashes.  It isn't a problem if the tuple is allocated under the main interpreter, since its lifetime is bound to the lifetime of the runtime.  The solution here is to temporarily switch to the main interpreter.  The alternative would be to always statically allocate the tuple.

This change also fixes a bug where only the most recent parser was added to the global linked list.
2024-05-22 09:57:52 -06:00
Kirill Podoprigora 100c7ab00a
gh-119049: Fix incorrect display of warning which is constructed by C API (GH-119063)
The source line was not displayed if the warnings module had not yet
been imported.
2024-05-16 20:27:59 +00:00
Sam Gross b309c8ebff
gh-118846: Fix free-threading test failures when run sequentially (#118864)
The free-threaded build currently immortalizes some objects once the
first thread is started. This can lead to test failures depending on the
order in which tests are run. This PR addresses those failures by
suppressing immortalization or skipping the affected tests.
2024-05-10 16:29:29 -04:00
Mark Shannon 616b745b89
GH-115709: Invalidate executors when a local variable is changed via frame.f_locals (#118639)
Also fix unrelated assert in debug Tier2/JIT builds.
2024-05-06 21:21:06 +00:00
NGRsoftlab 7d2ffada0a
gh-116180: Check the globals argument in PyRun_* C API (GH-116637)
It used to crash when passing NULL or non-dict as globals.
Now it sets a SystemError.
2024-05-02 16:43:03 +03:00
Victor Stinner b52c753e0f
gh-110850: Add PyTime_TimeRaw() function (#118394)
Add "Raw" variant of PyTime functions:

* PyTime_MonotonicRaw()
* PyTime_PerfCounterRaw()
* PyTime_TimeRaw()

Changes:

* Add documentation and tests. Tests release the GIL while calling
  raw clock functions.
* py_get_system_clock() and py_get_monotonic_clock() now check that
  the GIL is hold by the caller if raise_exc is non-zero.
* Reimplement "Unchecked" functions with raw clock functions.

Co-authored-by: Petr Viktorin <encukou@gmail.com>
2024-05-01 18:05:01 +00:00
Guido van Rossum 7d83f7bcc4
gh-118335: Configure Tier 2 interpreter at build time (#118339)
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.
2024-04-30 18:26:34 -07:00
Sam Gross 7ccacb220d
gh-117783: Immortalize objects that use deferred reference counting (#118112)
Deferred reference counting is not fully implemented yet. As a temporary
measure, we immortalize objects that would use deferred reference
counting to avoid multi-threaded scaling bottlenecks.

This is only performed in the free-threaded build once the first
non-main thread is started. Additionally, some tests, including refleak
tests, suppress this behavior.
2024-04-29 14:36:02 -04:00
Kirill Podoprigora 51c70de998
gh-118351: Adapt support.TEST_MODULES_ENABLED for builds without the config variable (GH-118354) 2024-04-29 16:50:11 +01:00
Eric Snow 1d33925176
gh-110693: Use a Larger Queue for Per-Interpreter Pending Calls (gh-118302)
This is an improvement over the status quo, reducing the likelihood of completely filling the pending calls queue.  However, the problem won't go away completely unless we move to an unbounded linked list or add a mechanism for waiting until the queue isn't full.
2024-04-26 19:13:44 -06:00
Mark Shannon 3e06c7f719
GH-118095: Add dynamic exit support and FOR_ITER_GEN support to tier 2 (GH-118279) 2024-04-26 18:08:50 +01:00
Eric Snow 09c2947581
gh-110693: Pending Calls Machinery Cleanups (gh-118296)
This does some cleanup in preparation for later changes.
2024-04-26 01:05:51 +00:00
Kirill Podoprigora 1723c76d79
Fix incorrect usage of ``support.requires_gil_enabled`` (#118170) 2024-04-25 11:11:59 -04:00
Mark Shannon f180b31e76
GH-118095: Handle `RETURN_GENERATOR` in tier 2 (GH-118180) 2024-04-25 11:32:47 +01:00
Eric Snow 03e3e31723
gh-76785: Rename _xxsubinterpreters to _interpreters (gh-117791)
See https://discuss.python.org/t/pep-734-multiple-interpreters-in-the-stdlib/41147/26.
2024-04-24 16:18:24 +00:00
Mark Shannon 83235f7791
GH-115419: Move setting the instruction pointer to error exit stubs (GH-118088) 2024-04-24 14:41:30 +01:00
Joe Jevnik eb927e9fc8
gh-68114: Fix handling for removed PyArg_ParseTuple 'w' formatters (GH-8204)
Co-authored-by: Joe Jevnik <joe@quantopian.com>
Co-authored-by: Petr Viktorin <encukou@gmail.com>
2024-04-23 13:15:15 +02:00
Mark Shannon a6647d16ab
GH-115480: Reduce guard strength for binary ops when type of one operand is known already (GH-118050) 2024-04-22 13:34:06 +01:00
Serhiy Storchaka 6078f2033e
gh-117968: Add tests for the part of the PyRun family of the C API (GH-117982)
Co-authored-by: NGRsoftlab <78017794+NGRsoftlab@users.noreply.github.com>
Co-authored-by: Erlend E. Aasland <erlend.aasland@protonmail.com>
2024-04-17 23:45:35 +03:00
Sam Gross 241ed5f2cd
gh-117376: Make code objects use deferred reference counting (#117823)
We want code objects to use deferred reference counting in the
free-threaded build. This requires them to be tracked by the GC, so we
set `Py_TPFLAGS_HAVE_GC` in the free-threaded build, but not the default
build.
2024-04-16 12:42:53 -04:00
Serhiy Storchaka 57bdb75975
gh-117694: Improve tests for PyEval_EvalCodeEx() (GH-117695) 2024-04-15 12:44:54 +03:00
Sam Gross 1b10efad66
gh-117649: Fix file descriptor leak in (expected) failing test case (#117780)
The test case is currently expected to fail in the free-threaded build.
However, it fails before it gets a chance to close the write end of
the pipe.
2024-04-11 21:35:46 +00:00
Sam Gross 25f6ff5d3e
gh-117649: Raise ImportError for unsupported modules in free-threaded build (#117651)
The free-threaded build does not currently support the combination of
single-phase init modules and non-isolated subinterpreters. Ensure that
`check_multi_interp_extensions` is always `True` for subinterpreters in
the free-threaded build so that importing these modules raises an
`ImportError`.
2024-04-11 15:00:54 -04:00
Kirill Podoprigora 91d7605ac3
gh-115142: Skip ``test_capi/test_opt.py`` if ``_testinternalcapi`` is not available (GH-117574) 2024-04-11 16:19:19 +02:00
Eric Snow 993c3cca16
gh-76785: Add More Tests to test_interpreters.test_api (gh-117662)
In addition to the increase test coverage, this is a precursor to sorting out how we handle interpreters created directly via the C-API.
2024-04-10 18:37:01 -06:00
Kirill Podoprigora dfcae4379f
gh-115142: Skip ``test_capi.test_dict.py`` if ``_testcapi`` and ``_testlimitedcapi`` are not available (GH-117588)
gh-115142: Skip test_dict if _testcapi and _testlimitedcapi is not available
2024-04-10 16:32:57 +02:00
Serhiy Storchaka 24a2bd0481
gh-117642: Fix PEP 737 implementation (GH-117643)
* Fix implementation of %#T and %#N (they were implemented as %T# and
  %N#).
* Restore tests removed in gh-116417.
2024-04-08 16:27:25 +00:00
Steve Dower 687616877b
gh-111140: PyLong_From/AsNativeBytes: Take *flags* rather than just *endianness* (GH-116053) 2024-04-05 16:21:16 +02:00
Sam Gross 42205143f8
gh-117478: Add `@support.requires_gil_enabled` decorator (#117479)
Co-authored-by: Kirill Podoprigora <kirill.bast9@mail.ru>
2024-04-04 14:10:46 -04:00
Guido van Rossum 060a96f1a9
gh-116968: Reimplement Tier 2 counters (#117144)
Introduce a unified 16-bit backoff counter type (``_Py_BackoffCounter``),
shared between the Tier 1 adaptive specializer and the Tier 2 optimizer. The
API used for adaptive specialization counters is changed but the behavior is
(supposed to be) identical.

The behavior of the Tier 2 counters is changed:
- There are no longer dynamic thresholds (we never varied these).
- All counters now use the same exponential backoff.
- The counter for ``JUMP_BACKWARD`` starts counting down from 16.
- The ``temperature`` in side exits starts counting down from 64.
2024-04-04 15:03:27 +00:00
Peter Lazorchak 1c43468886
gh-116168: Remove extra `_CHECK_STACK_SPACE` uops (#117242)
This merges all `_CHECK_STACK_SPACE` uops in a trace into a single `_CHECK_STACK_SPACE_OPERAND` uop that checks whether there is enough stack space for all calls included in the entire trace.
2024-04-03 17:14:18 +00:00
Erlend E. Aasland ea94b3b149
gh-116303: Skip test module dependent tests if test modules are unavailable (#117341) 2024-04-03 15:11:36 +02:00
Eric Snow 857d3151c9
gh-76785: Consolidate Some Interpreter-related Testing Helpers (gh-117485)
This eliminates the duplication of functionally identical helpers in the _testinternalcapi and _xxsubinterpreters modules.
2024-04-02 23:16:50 +00:00
Eric Snow f341d6017d
gh-76785: Add PyInterpreterConfig Helpers (gh-117170)
These helpers make it easier to customize and inspect the config used to initialize interpreters.  This is especially valuable in our tests.  I found inspiration from the PyConfig API for the PyInterpreterConfig dict conversion stuff.  As part of this PR I've also added a bunch of tests.
2024-04-02 20:35:52 +00:00
Mark Shannon c32dc47aca
GH-115776: Embed the values array into the object, for "normal" Python objects. (GH-116115) 2024-04-02 11:59:21 +01:00
MonadChains 90c3c68a65
gh-94808:Improve coverage of PyObject_Print (GH-98749) 2024-04-01 12:52:25 +00:00
Serhiy Storchaka 0c1a42cf9c
gh-87193: Support bytes objects with refcount > 1 in _PyBytes_Resize() (GH-117160)
Create a new bytes object and destroy the old one if it has refcount > 1.
2024-03-25 16:32:11 +01:00
Irit Katriel d610d821fd
gh-112383: teach dis how to interpret ENTER_EXECUTOR (#117171) 2024-03-23 22:32:33 +00:00