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* gh-111924: Use PyMutex for Runtime-global Locks. (gh-112207)Sam Gross2023-12-076-182/+41
| | | | | This replaces some usages of PyThread_type_lock with PyMutex, which does not require memory allocation to initialize. This simplifies some of the runtime initialization and is also one step towards avoiding changing the default raw memory allocator during initialize/finalization, which can be non-thread-safe in some circumstances.
* gh-112538: Add internal-only _PyThreadStateImpl "wrapper" for PyThreadState ↵Sam Gross2023-12-071-14/+14
| | | | | | | | (gh-112560) Every PyThreadState instance is now actually a _PyThreadStateImpl. It is safe to cast from `PyThreadState*` to `_PyThreadStateImpl*` and back. The _PyThreadStateImpl will contain fields that we do not want to expose in the public C API.
* gh-111962: Make dtoa thread-safe in `--disable-gil` builds. (#112049)Sam Gross2023-12-072-25/+59
| | | | | | | | | | | | | | | | | | | | This updates `dtoa.c` to avoid using the Bigint free-list in --disable-gil builds and to pre-computes the needed powers of 5 during interpreter initialization. * gh-111962: Make dtoa thread-safe in `--disable-gil` builds. This avoids using the Bigint free-list in `--disable-gil` builds and pre-computes the needed powers of 5 during interpreter initialization. * Fix size of cached powers of 5 array. We need the powers of 5 up to 5**512 because we only jump straight to underflow when the exponent is less than -512 (or larger than 308). * Rename Py_NOGIL to Py_GIL_DISABLED * Changes from review * Fix assertion placement
* GH-111485: Separate out parsing, analysis and code-gen phases of tier 1 code ↵Mark Shannon2023-12-074-516/+541
| | | | generator (GH-112299)
* gh-74616: Raise ValueError in case of null character in input prompt (GH-1738)Kushal Das2023-12-071-0/+5
| | | | | | | If the input prompt to the builtin input function on terminal has any null character, then raise ValueError instead of silently truncating it. Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
* gh-112660: Do not clear arbitrary errors on import (GH-112661)Serhiy Storchaka2023-12-072-26/+45
| | | | | Previously arbitrary errors could be cleared during formatting error messages for ImportError or AttributeError for modules. Now all unexpected errors are reported.
* gh-112730: Use color to highlight error locations (gh-112732)Pablo Galindo Salgado2023-12-061-0/+2
| | | | Signed-off-by: Pablo Galindo <pablogsal@gmail.com> Co-authored-by: Łukasz Langa <lukasz@langa.pl>
* gh-111545: Add Py_HashPointer() function (#112096)Victor Stinner2023-12-062-18/+6
| | | | | * Implement _Py_HashPointerRaw() as a static inline function. * Add Py_HashPointer() tests to test_capi.test_hash. * Keep _Py_HashPointer() function as an alias to Py_HashPointer().
* gh-112606: Use sem_clockwait with monotonic time when supported in ↵Matt Prodani2023-12-061-2/+11
| | | | parking_lot.c (gh-112733)
* gh-65210: Add const qualifiers in PyArg_VaParseTupleAndKeywords() (GH-105958)Serhiy Storchaka2023-12-041-8/+9
| | | | | | | | | | | Change the declaration of the keywords parameter in functions PyArg_ParseTupleAndKeywords() and PyArg_VaParseTupleAndKeywords() from `char **` to `char * const *` in C and `const char * const *` in C++. It makes these functions compatible with argument of type `const char * const *`, `const char **` or `char * const *` in C++ and `char * const *` in C without explicit type cast. Co-authored-by: C.A.M. Gerlach <CAM.Gerlach@Gerlach.CAM>
* bpo-34392: Add sys. _is_interned() (GH-8755)Serhiy Storchaka2023-12-042-1/+53
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* gh-106560: Fix redundant declarations in Python/frozen.c (#112612)Victor Stinner2023-12-031-6/+0
| | | | | | Avoid duplicated declarations of "extern" functions in Python/frozen.c. Compiler warnings seen by building Python with gcc -Wredundant-decls.
* gh-112567: Add _PyTimeFraction C API (#112568)Victor Stinner2023-12-011-65/+85
| | | | | | | | | | | | | | | | | | | | | Use a fraction internally in the _PyTime API to reduce the risk of integer overflow: simplify the fraction using Greatest Common Divisor (GCD). The fraction API is used by time functions: perf_counter(), monotonic() and process_time(). For example, QueryPerformanceFrequency() usually returns 10 MHz on Windows 10 and newer. The fraction SEC_TO_NS / frequency = 1_000_000_000 / 10_000_000 can be simplified to 100 / 1. * Add _PyTimeFraction type. * Add functions: * _PyTimeFraction_Set() * _PyTimeFraction_Mul() * _PyTimeFraction_Resolution() * No longer check "numer * denom <= _PyTime_MAX" in _PyTimeFraction_Set(). _PyTimeFraction_Mul() uses _PyTime_Mul() which handles integer overflow.
* gh-112567: Add _Py_GetTicksPerSecond() function (#112587)Victor Stinner2023-12-012-5/+24
| | | | | | | | | | * Move _PyRuntimeState.time to _posixstate.ticks_per_second and time_module_state.ticks_per_second. * Add time_module_state.clocks_per_second. * Rename _PyTime_GetClockWithInfo() to py_clock(). * Rename _PyTime_GetProcessTimeWithInfo() to py_process_time(). * Add process_time_times() helper function, called by py_process_time(). * os.times() is now always built: no longer rely on HAVE_TIMES.
* gh-112367: Only free perf trampoline arenas at shutdown (#112368)Pablo Galindo Salgado2023-12-012-6/+36
| | | Signed-off-by: Pablo Galindo <pablogsal@gmail.com>
* gh-112519: Make it possible to specify instruction flags for pseudo ↵Irit Katriel2023-11-302-4/+4
| | | | instructions in bytecodes.c (#112520)
* gh-111972: Make Unicode name C APIcapsule initialization thread-safe (#112249)Kirill Podoprigora2023-11-301-9/+3
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* Rename ...Uop... to ...UOp... (uppercase O) for consistency (#112327)Guido van Rossum2023-11-294-22/+22
| | | | * Rename _PyUopExecute to _PyUOpExecute (uppercase O) for consistency * Also rename _PyUopName and _PyUOp_Replacements, and some output strings
* gh-112217: Add check to call result for `do_raise()` where cause is a type. ↵apaz2023-11-271-0/+7
| | | | (#112216)
* gh-111789: Use PyDict_GetItemRef() in Python/_warnings.c (gh-112080)Serhiy Storchaka2023-11-271-4/+4
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* gh-111789: Use PyDict_GetItemRef() in Python/symtable.c (gh-112084)Serhiy Storchaka2023-11-271-8/+4
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* gh-111789: Use PyDict_GetItemRef() in Python/codecs.c (gh-112082)Serhiy Storchaka2023-11-271-5/+4
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* gh-111789: Use PyDict_GetItemRef() in Python/bltinmodule.c (gh-112081)Serhiy Storchaka2023-11-271-6/+3
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* gh-112438: Fix support of format units with the "e" prefix in nested tuples ↵Serhiy Storchaka2023-11-271-1/+1
| | | | in PyArg_Parse (gh-112439)
* gh-99606: Make code generated for an empty f-string identical to that of a ↵Irit Katriel2023-11-261-2/+6
| | | | normal empty string (#112407)
* gh-76785: Return an "excinfo" Object From Interpreter.run() (gh-111573)Eric Snow2023-11-231-125/+323
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* GH-111485: Sort cases in the case generator output (GH-112315)Mark Shannon2023-11-221-4196/+4196
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* gh-111786: Use separate opcode vars for Tier 1 and Tier 2 (#112289)Michael Droettboom2023-11-201-12/+11
| | | | This makes Windows about 3% faster on pyperformance benchmarks.
* gh-112287: Speed up Tier 2 (uop) interpreter a little (#112286)Guido van Rossum2023-11-203-31/+124
| | | | | | | | | | | | | | | | | | | | | | | | | | This makes the Tier 2 interpreter a little faster. I calculated by about 3%, though I hesitate to claim an exact number. This starts by doubling the trace size limit (to 512), making it more likely that loops fit in a trace. The rest of the approach is to only load `oparg` and `operand` in cases that use them. The code generator know when these are used. For `oparg`, it will conditionally emit ``` oparg = CURRENT_OPARG(); ``` at the top of the case block. (The `oparg` variable may be referenced multiple times by the instructions code block, so it must be in a variable.) For `operand`, it will use `CURRENT_OPERAND()` directly instead of referencing the `operand` variable, which no longer exists. (There is only one place where this will be used.)
* gh-111848: Clean up RESERVE() macro (#112274)Guido van Rossum2023-11-201-14/+9
| | | Also avoid compiler warnings about unused 'reserved' variable.
* gh-106529: Make FOR_ITER a viable uop (#112134)Guido van Rossum2023-11-205-4/+60
| | | | | | | | | | This uses the new mechanism whereby certain uops are replaced by others during translation, using the `_PyUop_Replacements` table. We further special-case the `_FOR_ITER_TIER_TWO` uop to update the deoptimization target to point just past the corresponding `END_FOR` opcode. Two tiny code cleanups are also part of this PR.
* gh-111863: Rename `Py_NOGIL` to `Py_GIL_DISABLED` (#111864)Hugo van Kemenade2023-11-203-5/+5
| | | Rename Py_NOGIL to Py_GIL_DISABLED
* gh-112234: Remove the toplevel parameter in converttuple() (GH-112235)Serhiy Storchaka2023-11-181-16/+6
| | | It is and always was 0.
* gh-110319: Assert type_version != 0 before using it (#112226)Guido van Rossum2023-11-182-4/+4
| | | | | | - Ensure that `assert(type_version != 0);` always comes *before* using `type_version` Also: - In cases_generator, rename `-v` to from `--verbose` to `--viable`
* Various small improvements to uop debug output (#112218)Guido van Rossum2023-11-172-13/+20
| | | | | - Show uop name in Error/DEOPT messages - Add target to some messages - Expose uop_name() as _PyUopName()
* gh-106529: Cleanups split off gh-112134 (#112214)Guido van Rossum2023-11-173-1/+22
| | | | | | | - Double max trace size to 256 - Add a dependency on executor_cases.c.h for ceval.o - Mark `_SPECIALIZE_UNPACK_SEQUENCE` as `TIER_ONE_ONLY` - Add debug output back showing the optimized trace - Bunch of cleanups to Tools/cases_generator/
* gh-111956: Add thread-safe one-time initialization. (gh-111960)Sam Gross2023-11-164-901/+941
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* GH-111848: Set the IP when de-optimizing (GH-112065)Mark Shannon2023-11-153-38/+34
| | | | | | | | | | | | * Replace jumps with deopts in tier 2 * Fewer special cases of uop names * Add target field to uop IR * Remove more redundant SET_IP and _CHECK_VALIDITY micro-ops * Extend whitelist of non-escaping API functions.
* GH-111848: Convert remaining jumps to deopts into tier 2 code. (GH-112045)Mark Shannon2023-11-145-69/+92
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* gh-111789: Simplify bytecodes.c by using PyDict_GetItemRef() (GH-111978)Serhiy Storchaka2023-11-143-140/+51
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* gh-111262: Add PyDict_Pop() function (#112028)Victor Stinner2023-11-142-5/+3
| | | | | | | _PyDict_Pop_KnownHash(): remove the default value and the return type becomes an int. Co-authored-by: Stefan Behnel <stefan_ml@behnel.de> Co-authored-by: Antoine Pitrou <pitrou@free.fr>
* gh-111789: Simplify ceval.c by using PyDict_GetItemRef() (GH-111980)Serhiy Storchaka2023-11-141-18/+14
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* gh-111789: Simplify import.c by using PyDict_GetItemRef() (GH-111979)Serhiy Storchaka2023-11-141-18/+17
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* GH-111520: Add back the operand local (GH-111813)Brandt Bucher2023-11-142-27/+23
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* gh-107149: make new opcode util functions private rather than public and ↵Irit Katriel2023-11-142-10/+11
| | | | unstable (#112042)
* gh-111856: Fix os.fstat on windows with FAT32 and exFAT filesystem (GH-112038)AN Long2023-11-131-3/+8
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* gh-106905: avoid incorrect SystemError about recursion depth mismatch (#106906)Markus Mohrhard2023-11-131-0/+14
| | | | | | | | | | * gh-106905: avoid incorrect SystemError about recursion depth mismatch * Update Misc/NEWS.d/next/Core and Builtins/2023-07-20-11-41-16.gh-issue-106905.AyZpuB.rst --------- Co-authored-by: Shantanu <12621235+hauntsaninja@users.noreply.github.com> Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
* gh-111999: Add signatures and improve docstrings for builtins (GH-112000)Serhiy Storchaka2023-11-131-9/+13
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* gh-111933: fix broken link to A.Neumaier article (gh-111937)Sergey B Kirpichev2023-11-121-1/+4
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* Remove dead code left after gh-110721 (#111905)Serhiy Storchaka2023-11-101-37/+0
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