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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
..
NEWS.d gh-119213: Be More Careful About _PyArg_Parser.kwtuple Across Interpreters (gh-119331) 2024-05-22 09:57:52 -06:00
rhel7 gh-95957: Add instructions for Tcl/Tk and OpenSSL on RHEL/CentOS 7 (#95964) 2022-08-16 13:44:02 +02:00
ACKS gh-114099: Formalize Tier 3 status of iOS (GH-118020) 2024-04-20 23:04:08 -04:00
coverity_model.c bpo-35808: Retire pgen and use pgen2 to generate the parser (GH-11814) 2019-03-01 15:34:44 -08:00
externals.spdx.json gh-115119: Update Windows installer to mpdecimal 4.0.0 (#118506) 2024-05-03 18:00:43 +02:00
HISTORY Fix a misspelling of Interpeter -> Interpreter (GH-111040) 2023-10-18 15:09:45 -07:00
indent.pro
platform_triplet.c gh-114099: Modify preprocessor symbol usage to support older macOS SDKs (GH-118073) 2024-04-19 14:56:33 -04:00
Porting bpo-30737: Update DevGuide links to new URL (GH-3228) 2017-08-30 09:37:43 -07:00
python-config.in bpo-45101: Add consistency in usage message IO between 2 versions of python-config (GH-28162) 2024-02-26 22:04:44 +02:00
python-config.sh.in gh-116745: Remove all internal usage of @LIBPYTHON@ (#116746) 2024-03-22 00:54:50 +01:00
python-embed.pc.in bpo-36721: Add --embed option to python-config (GH-13500) 2019-05-23 03:30:23 +02:00
python.man gh-116167: Allow disabling the GIL with PYTHON_GIL=0 or -X gil=0 (#116338) 2024-03-11 11:02:58 -04:00
python.pc.in gh-116745: Remove all internal usage of @LIBPYTHON@ (#116746) 2024-03-22 00:54:50 +01:00
README gh-102809: Remove gdbinit mention in Misc/README (#103269) 2023-04-08 00:04:23 -07:00
README.AIX bpo-42087: Remove support for AIX 5.3 and below (GH-22830) 2020-11-16 16:16:10 +01:00
README.coverity
README.valgrind closes docs: remove references to Py_USING_MEMORY_DEBUGGER (GH-30284) 2021-12-29 16:20:42 -06:00
sbom.spdx.json gh-116741: Upgrade libexpat to 2.6.2 (#117296) 2024-04-22 18:15:08 -07:00
SpecialBuilds.txt gh-108634: Py_TRACE_REFS uses a hash table (#108663) 2023-08-31 18:33:34 +02:00
stable_abi.toml gh-74929: Implement PEP 667 (GH-115153) 2024-05-04 12:12:10 +01:00
svnmap.txt bpo-32159: Revert Misc/svnmap.txt (#4639) 2017-11-29 18:58:33 +01:00
valgrind-python.supp gh-105182: Remove PyEval_AcquireLock() and PyEval_InitThreads() (#105183) 2023-06-01 13:41:56 +02:00
vgrindefs

README 

Python Misc subdirectory
========================

This directory contains files that wouldn't fit in elsewhere.  Some
documents are only of historic importance.

Files found here
----------------

ACKS                    Acknowledgements
HISTORY                 News from previous releases -- oldest last
indent.pro              GNU indent profile approximating my C style
NEWS                    News for this release (for some meaning of "this")
Porting                 Mini-FAQ on porting to new platforms
python-config.in        Python script template for python-config
python.man              UNIX man page for the python interpreter
python.pc.in            Package configuration info template for pkg-config
README                  The file you're reading now
README.AIX              Information about using Python on AIX
README.coverity         Information about running Coverity's Prevent on Python
README.valgrind         Information for Valgrind users, see valgrind-python.supp
SpecialBuilds.txt       Describes extra symbols you can set for debug builds
svnmap.txt              Map of old SVN revs and branches to hg changeset ids,
                        help history-digging
valgrind-python.supp    Valgrind suppression file, see README.valgrind
vgrindefs               Python configuration for vgrind (a generic pretty printer)