Rename components related to `_hashlib.{HASH,HASHXOF}` objects.
- The `EVPobject` structure is renamed `HASHobject`.
- Non-clinic `HASH` methods are now prefixed by `_hashlib_HASH_*`.
A similar change is made for non-clinic `HASHXOF` methods.
- Functions extracting information from `EVP_MD` objects and functions
constructing `EVP_MD` objects now include `openssl_evp_md` in their name.
This change allows us to avoid future ambiguities between the `EVP_MD`
and the `EVP_MAC` APIs (currently, we only use `EVP_MD` for hash functions
and rely on the legacy interface for HMAC instead of using `EVP_MAC`).
Completely refactor Modules/_remote_debugging_module.c with improved
code organization, replacing scattered reference counting and error
handling with centralized goto error paths. This cleanup improves
maintainability and reduces code duplication throughout the module while
preserving the same external API.
Implement memory page caching optimization in Python/remote_debug.h to
avoid repeated reads of the same memory regions during debugging
operations. The cache stores previously read memory pages and reuses
them for subsequent reads, significantly reducing system calls and
improving performance.
Add code object caching mechanism with a new code_object_generation
field in the interpreter state that tracks when code object caches need
invalidation. This allows efficient reuse of parsed code object metadata
and eliminates redundant processing of the same code objects across
debugging sessions.
Optimize memory operations by replacing multiple individual structure
copies with single bulk reads for the same data structures. This reduces
the number of memory operations and system calls required to gather
debugging information from the target process.
Update Makefile.pre.in to include Python/remote_debug.h in the headers
list, ensuring that changes to the remote debugging header force proper
recompilation of dependent modules and maintain build consistency across
the codebase.
Also, make the module compatible with the free threading build as an extra :)
Co-authored-by: Łukasz Langa <lukasz@langa.pl>
Followup to 942673ed19 (GH-133588)
* Update configure for Python 3.15
* Update magic number for 3.15
* Remove deprecated 'check_home' argument from sysconfig.is_python_build
* Add warningignore entries for Modules/_sqlite/clinic/connection.c.h
* Work around c-analyzer complaints about _testclinic deprecation tests
---------
Co-authored-by: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com>
This fixes os.link() on platforms (like Linux and OpenIndiana) where the
system link() function does not follow symlinks.
* On Linux, it now follows symlinks by default and if
follow_symlinks=True is specified.
* On Windows, it now raises error if follow_symlinks=True is passed.
* On macOS, it now raises error if follow_symlinks=False is passed and
the system linkat() function is not available at runtime.
* On other platforms, it now raises error if follow_symlinks is passed
with a value that does not match the system link() function behavior
if if the behavior is not known.
Co-authored-by: Joachim Henke <37883863+jo-he@users.noreply.github.com>
Co-authored-by: Thomas Kluyver <takowl@gmail.com>
ntohl(), htonl(), if_indextoname(), getaddrinfo() now use __index__() if
available.
Also fix the Argument Clinic names for module-level functions (although
this does not affect the user).
The `test_load_global_module()` test consumes a lot of dict key versions.
Skip the test if we have consumed half of the available versions that can be
used for the "load global" cache.
* Support arbitrary bytes-like objects, not only bytes, in fcntl().
* The fcntl() buffer argument is now null-terminated.
* Automatically retry an ioctl() system calls failing with EINTR.
* Release the GIL for an ioctl() system call even for large bytes-like object.
* Do not silence arbitrary errors whet try to get a buffer.
* Optimize argument parsing, check the argument type before trying to get
a buffer or convert it to integer.
* Fix some error messages.
Make `warnings.catch_warnings()` use a context variable for holding
the warning filtering state if the `sys.flags.context_aware_warnings`
flag is set to true. This makes using the context manager thread-safe in
multi-threaded programs.
Add the `sys.flags.thread_inherit_context` flag. If true, starting a new
thread with `threading.Thread` will use a copy of the context
from the caller of `Thread.start()`.
Both these flags are set to true by default for the free-threaded build
and false for the default build.
Move the Python implementation of warnings.py into _py_warnings.py.
Make _contextvars a builtin module.
Co-authored-by: Kumar Aditya <kumaraditya@python.org>
A new extension module, `_hmac`, now exposes the HACL* HMAC (formally verified) implementation.
The HACL* implementation is used as a fallback implementation when the OpenSSL implementation of HMAC
is not available or disabled. For now, only named hash algorithms are recognized and SIMD support provided
by HACL* for the BLAKE2 hash functions is not yet used.
Add a new OS API which will read data directly into a caller provided
writeable buffer protocol object.
Co-authored-by: Bénédikt Tran <10796600+picnixz@users.noreply.github.com>
Co-authored-by: Victor Stinner <vstinner@python.org>
Implement set_name() with SetThreadDescription() and _get_name() with
GetThreadDescription(). If SetThreadDescription() or
GetThreadDescription() is not available in kernelbase.dll, delete the
method when the _thread module is imported.
Truncate the thread name to 32766 characters.
Co-authored-by: Eryk Sun <eryksun@gmail.com>
* Makes `_asyncio.Task` and `_asyncio.Future` thread-safe by adding critical sections
* Add assertions to check for thread safety checking locking of object by critical sections in internal functions
* Make `_asyncio.all_tasks` thread safe when eager tasks are used
* Add a thread safety test
On Linux, threading.Thread now sets the thread name to the operating
system.
* configure now checks if pthread_getname_np()
and pthread_setname_np() functions are available.
* Add PYTHREAD_NAME_MAXLEN macro.
* Add _thread._NAME_MAXLEN constant for test_threading.
Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
Move creation of a tuple for var-positional parameter out of
_PyArg_UnpackKeywordsWithVararg().
Merge _PyArg_UnpackKeywordsWithVararg() with _PyArg_UnpackKeywords().
Add a new parameter in _PyArg_UnpackKeywords().
The "parameters" and "converters" attributes of ParseArgsCodeGen no
longer contain the var-positional parameter. It is now available as the
"varpos" attribute. Optimize code generation for var-positional
parameter and reuse the same generating code for functions with and without
keyword parameters.
Add special converters for var-positional parameter. "tuple" represents it as
a Python tuple and "array" represents it as a continuous array of PyObject*.
"object" is a temporary alias of "tuple".
