Commit Graph

1214 Commits

Author SHA1 Message Date
Pablo Galindo Salgado 6d791a9736
gh-96143: Allow Linux perf profiler to see Python calls (GH-96123)
⚠️  ⚠️ Note for reviewers, hackers and fellow systems/low-level/compiler engineers ⚠️ ⚠️ 

If you have a lot of experience with this kind of shenanigans and want to improve the **first** version, **please make a PR against my branch** or **reach out by email** or **suggest code changes directly on GitHub**. 

If you have any **refinements or optimizations** please, wait until the first version is merged before starting hacking or proposing those so we can keep this PR productive.
2022-08-30 10:11:18 -07:00
Raghunandan Bhat edb72047f3
gh-43414: os.get_terminal_size() now uses the actual file descriptor on Windows instead of mapping to standard handles (#93203) 2022-07-28 23:48:33 +01:00
Kumar Aditya 4dd099baff
GH-93899: fix checks for eventfd flags (GH-95170) 2022-07-27 06:05:29 -07:00
Christian Heimes 0d35a59ce3
gh-95174: Handle missing dup() and constants in WASI (GH-95229)
- check for ``dup()`` libc function
- handle missing ``F_DUPFD`` in ``dup2()`` replacement function
- add workaround for WASI libc bug in MSG_TRUNC
- ESHUTDOWN is missing, use EPIPE instead
- POLLPRI is missing, define as 0 (no-op)
2022-07-26 11:16:51 +02:00
Serhiy Storchaka 6fd4c8ec77
gh-93741: Add private C API _PyImport_GetModuleAttrString() (GH-93742)
It combines PyImport_ImportModule() and PyObject_GetAttrString()
and saves 4-6 lines of code on every use.

Add also _PyImport_GetModuleAttr() which takes Python strings as arguments.
2022-06-14 07:15:26 +03:00
Christian Heimes 22fed605e0
gh-90473: Make chmod a dummy on WASI, skip chmod tests (GH-93534)
WASI does not have the ``chmod(2)`` syscall yet.
2022-06-06 19:24:11 +02:00
Kumar Aditya a565ab0fd5
GH-93312: Add os.PIDFD_NONBLOCK flag (#93313) 2022-05-31 12:51:29 +02:00
Inada Naoki f9c9354a7a
gh-92536: PEP 623: Remove wstr and legacy APIs from Unicode (GH-92537) 2022-05-12 14:48:38 +09:00
Soumendra Ganguly ae553b3561
bpo-41818: Add os.login_tty() for *nix. (#29658)
* Add `os.login_tty(fd)` for Unix.

Reviewed-by: Christian Heimes <christian@python.org>
Signed-off-by: Gregory P. Smith [Google LLC] <greg@krypto.org>
2022-05-05 09:04:44 -07:00
David CARLIER 04dc4b06a3
gh-90887: posix module: Add more flags for fcopy_file (#31300)
Closes #90887

Co-authored-by: Jelle Zijlstra <jelle.zijlstra@gmail.com>
2022-05-03 08:53:51 -06:00
Itai Steinherz 39e6b8ae6a
bpo-46785: Fix race condition between os.stat() and unlink on Windows (GH-31858) 2022-05-03 00:19:13 +01:00
Victor Stinner 20cc695286
gh-64783: Fix signal.NSIG value on FreeBSD (#91929)
Fix signal.NSIG value on FreeBSD to accept signal numbers greater
than 32, like signal.SIGRTMIN and signal.SIGRTMAX.

* Add Py_NSIG constant.
* Add pycore_signal.h internal header file.
* _Py_Sigset_Converter() now includes the range of valid signals in
  the error message.
2022-04-26 00:13:31 +02:00
Victor Stinner 031f1e6040
gh-90623: signal.raise_signal() calls PyErr_CheckSignals() (#91756)
signal.raise_signal() and os.kill() now call PyErr_CheckSignals() to
check immediately for pending signals.
2022-04-21 03:14:57 +02:00
Victor Stinner 7cdaf87ec5
gh-91731: Replace Py_BUILD_ASSERT() with static_assert() (#91730)
Python 3.11 now uses C11 standard which adds static_assert()
to <assert.h>.

* In pytime.c, replace Py_BUILD_ASSERT() with preprocessor checks on
  SIZEOF_TIME_T with #error.
* On macOS, py_mach_timebase_info() now accepts timebase members with
  the same size than _PyTime_t.
* py_get_monotonic_clock() now saturates GetTickCount64() to
  _PyTime_MAX: GetTickCount64() is unsigned, whereas _PyTime_t is
  signed.
2022-04-20 19:26:40 +02:00
Victor Stinner dc374ac7b0
bpo-46968: Add os.sysconf_names['SC_MINSIGSTKSZ'] (GH-31824) 2022-03-11 23:01:40 +01:00
Victor Stinner e02c47528b
bpo-46606: os.getgroups() doesn't overallocate (GH-31569) 2022-02-27 00:14:28 +01:00
Inada Naoki ad6c7003e3
bpo-46606: Remove redundant +1. (GH-31561) 2022-02-25 14:13:14 +09:00
Inada Naoki 74127b89a8
bpo-46606: Reduce stack usage of getgroups and setgroups (GH-31073)
NGROUPS_MAX was 32 before Linux 2.6.4 but 65536 since Linux 2.6.4.
2022-02-22 11:59:27 +09:00
Eric Snow 81c72044a1
bpo-46541: Replace core use of _Py_IDENTIFIER() with statically initialized global objects. (gh-30928)
We're no longer using _Py_IDENTIFIER() (or _Py_static_string()) in any core CPython code.  It is still used in a number of non-builtin stdlib modules.

The replacement is: PyUnicodeObject (not pointer) fields under _PyRuntimeState, statically initialized as part of _PyRuntime.  A new _Py_GET_GLOBAL_IDENTIFIER() macro facilitates lookup of the fields (along with _Py_GET_GLOBAL_STRING() for non-identifier strings).

https://bugs.python.org/issue46541#msg411799 explains the rationale for this change.

The core of the change is in:

* (new) Include/internal/pycore_global_strings.h - the declarations for the global strings, along with the macros
* Include/internal/pycore_runtime_init.h - added the static initializers for the global strings
* Include/internal/pycore_global_objects.h - where the struct in pycore_global_strings.h is hooked into _PyRuntimeState
* Tools/scripts/generate_global_objects.py - added generation of the global string declarations and static initializers

I've also added a --check flag to generate_global_objects.py (along with make check-global-objects) to check for unused global strings.  That check is added to the PR CI config.

The remainder of this change updates the core code to use _Py_GET_GLOBAL_IDENTIFIER() instead of _Py_IDENTIFIER() and the related _Py*Id functions (likewise for _Py_GET_GLOBAL_STRING() instead of _Py_static_string()).  This includes adding a few functions where there wasn't already an alternative to _Py*Id(), replacing the _Py_Identifier * parameter with PyObject *.

The following are not changed (yet):

* stop using _Py_IDENTIFIER() in the stdlib modules
* (maybe) get rid of _Py_IDENTIFIER(), etc. entirely -- this may not be doable as at least one package on PyPI using this (private) API
* (maybe) intern the strings during runtime init

https://bugs.python.org/issue46541
2022-02-08 13:39:07 -07:00
Christian Heimes 96b344c2f1
bpo-40280: Address more test failures on Emscripten (GH-31050)
Co-authored-by: Brett Cannon <brett@python.org>
2022-02-05 20:52:01 +01:00
neonene d4e64cd4b0
bpo-46362: Ensure ntpath.abspath() uses the Windows API correctly (GH-30571)
This makes ntpath.abspath()/getpath_abspath() follow normpath(), since some WinAPIs such as PathCchSkipRoot() require backslashed paths.
2022-01-13 23:35:42 +00:00
Christian Heimes a6ca8eee22
bpo-46315: Add ifdef HAVE_ feature checks for WASI compatibility (GH-30507) 2022-01-13 09:46:04 +01:00
David CARLIER c960b191b8
bpo-46222: posixmodule sendfile FreeBSD's constants updates. (GH-30327)
* posixodule sendfile FreeBSD's constants updates.

* 📜🤖 Added by blurb_it.

Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com>
2022-01-03 15:01:04 +02:00
Kumar Aditya 41026c3155
bpo-45855: Replaced deprecated `PyImport_ImportModuleNoBlock` with PyImport_ImportModule (GH-30046) 2021-12-12 10:45:20 +02:00
Eric Snow 758b74e71e
bpo-46008: Add _PyInterpreterState_Main(). (gh-29978)
PyInterpreterState_Main() is a plain function exposed in the public C-API. For internal usage we can take the more efficient approach in this PR.

https://bugs.python.org/issue46008
2021-12-07 18:56:06 -07:00
Steve Dower 99fcf15052
bpo-45582: Port getpath[p].c to Python (GH-29041)
The getpath.py file is frozen at build time and executed as code over a namespace. It is never imported, nor is it meant to be importable or reusable. However, it should be easier to read, modify, and patch than the previous code.

This commit attempts to preserve every previously tested quirk, but these may be changed in the future to better align platforms.
2021-12-03 00:08:42 +00:00
Christian Heimes 4ebde73b8e
bpo-40280: Move hard-coded feature checks to configure (GH-29789)
Co-authored-by: Erlend Egeberg Aasland <erlend.aasland@innova.no>
2021-11-26 19:36:48 +01:00
Christian Heimes dc19e86983
bpo-41498: Fix build on platforms without sigset_t (GH-29770) 2021-11-25 12:28:41 +01:00
Victor Stinner aac29af678
bpo-45434: pyport.h no longer includes <stdlib.h> (GH-28914)
Include <stdlib.h> explicitly in C files.

Python.h includes <wchar.h>.
2021-10-13 19:25:53 +02:00
Victor Stinner 7cdc2a0f4b
pycore_pystate.h no longer redefines PyThreadState_GET() (GH-28921)
Redefining the PyThreadState_GET() macro in pycore_pystate.h is
useless since it doesn't affect files not including it. Either use
_PyThreadState_GET() directly, or don't use pycore_pystate.h internal
C API. For example, the _testcapi extension don't use the internal C
API, but use the public PyThreadState_Get() function instead.

Replace PyThreadState_Get() with _PyThreadState_GET(). The
_PyThreadState_GET() macro is more efficient than PyThreadState_Get()
and PyThreadState_GET() function calls which call fail with a fatal
Python error.

posixmodule.c and _ctypes extension now include <windows.h> before
pycore header files (like pycore_call.h).

_PyTraceback_Add() now uses _PyErr_Fetch()/_PyErr_Restore() instead
of PyErr_Fetch()/PyErr_Restore().

The _decimal and _xxsubinterpreters extensions are now built with the
Py_BUILD_CORE_MODULE macro defined to get access to the internal C
API.
2021-10-13 14:09:13 +02:00
Victor Stinner d943d19172
bpo-45439: Move _PyObject_CallNoArgs() to pycore_call.h (GH-28895)
* Move _PyObject_CallNoArgs() to pycore_call.h (internal C API).
* _ssl, _sqlite and _testcapi extensions now call the public
  PyObject_CallNoArgs() function, rather than _PyObject_CallNoArgs().
* _lsprof extension is now built with Py_BUILD_CORE_MODULE macro
  defined to get access to internal _PyObject_CallNoArgs().
2021-10-12 08:38:19 +02:00
Victor Stinner ce3489cfdb
bpo-45439: Rename _PyObject_CallNoArg() to _PyObject_CallNoArgs() (GH-28891)
Fix typo in the private _PyObject_CallNoArg() function name: rename
it to _PyObject_CallNoArgs() to be consistent with the public
function PyObject_CallNoArgs().
2021-10-12 00:42:23 +02:00
Serhiy Storchaka f25f2e2e8c
Clean up initialization __class_getitem__ with Py_GenericAlias. (GH-28450)
The cast to PyCFunction is redundant. Overuse of redundant casts
can hide actual bugs.
2021-09-19 18:05:30 +03:00
Vincent Michel 06148b1870
bpo-44219: Release the GIL during isatty syscalls (GH-28250)
Release the GIL while performing isatty() system calls on arbitrary
file descriptors. In particular, this affects os.isatty(),
os.device_encoding() and io.TextIOWrapper. By extension,
io.open() in text mode is also affected.
2021-09-09 15:12:03 +02:00
Stanisław Skonieczny 9dc363ee7c
bpo-45012: Release GIL around stat in os.scandir (GH-28085)
Releasing GIL allows other threads to continue
its work when os.scandir is fetching DirEntry.stat
info from file system.
2021-09-07 19:55:20 +02:00
Samuel Marks 19459f8ce6
bpo-44321: Adds `os.EX_OK` for Windows (GH-26559) 2021-06-24 17:45:18 +01:00
Victor Stinner 0cad068ec1
bpo-43916: Remove _disabled_new() function (GH-25745)
posix and _hashlib use the new Py_TPFLAGS_DISALLOW_INSTANTIATION
flag on their heap types, rather than using a custom tp_new function
(_disabled_new).
2021-04-30 14:06:49 +02:00
Segev Finer 5e437fb872
bpo-30555: Fix WindowsConsoleIO fails in the presence of fd redirection (GH-1927)
This works by not caching the handle and instead getting the handle from
the file descriptor each time, so that if the actual handle changes by
fd redirection closing/opening the console handle beneath our feet, we
will keep working correctly.
2021-04-23 23:00:27 +01:00
Steve Dower 019e9e8168
bpo-43538: Add extra arguments to os.startfile (GH-25538) 2021-04-23 18:03:17 +01:00
Steve Dower e07d809889
bpo-38222: Check specifically for a drive, not just a colon (GH-25540) 2021-04-23 00:30:37 +01:00
Steve Dower fe63a401a9
bpo-38822: Fixed os.stat failing on inaccessible directories. (GH-25527)
It would just fail if the path was inaccessible and had a trailing slash. It should fall back to the parent directory's metadata.
2021-04-22 20:45:02 +01:00
Victor Stinner cdad2724e6
bpo-40137: Add pycore_moduleobject.h internal header (GH-25507)
Add pycore_moduleobject.h internal header file with static inline
functions to access module members:

* _PyModule_GetDict()
* _PyModule_GetDef()
* _PyModule_GetState()

These functions don't check at runtime if their argument has a valid
type and can be inlined even if Python is not built with LTO.

_PyType_GetModuleByDef() uses _PyModule_GetDef().

Replace PyModule_GetState() with _PyModule_GetState() in the
extension modules, considered as performance sensitive:

* _abc
* _functools
* _operator
* _pickle
* _queue
* _random
* _sre
* _struct
* _thread
* _winapi
* array
* posix

The following extensions are now built with the Py_BUILD_CORE_MODULE
macro defined, to be able to use the internal pycore_moduleobject.h
header: _abc, array, _operator, _queue, _sre, _struct.
2021-04-22 00:52:52 +02:00
Steve Dower 04732ca993
bpo-43105: Importlib now resolves relative paths when creating module spec objects from file locations (GH-25121) 2021-04-07 01:02:07 +01:00
Dong-hee Na f917c243c5
bpo-43106: Add os.O_EVTONLY/O_FSYNC/O_SYMLINK/O_NOFOLLOW_ANY (GH-24428) 2021-02-04 08:32:55 +09:00
Joshua Root df21f502fd
bpo-42692: fix __builtin_available check on older compilers (GH-23873)
A compiler that doesn't define `__has_builtin` will error out when it is
used on the same line as the check for it.

Automerge-Triggered-By: GH:ronaldoussoren
2021-01-04 02:36:58 -08:00
Jakub Kulík 0159e5efee
bpo-42655: Fix subprocess extra_groups gid conversion (GH-23762) 2020-12-29 14:58:27 +02:00
Pablo Galindo dedc2cd5f0
bpo-41625: Do not add os.splice on AIX due to compatibility issues (GH-23608) 2020-12-02 17:57:18 +00:00
Victor Stinner 00d7abd7ef
bpo-42519: Replace PyMem_MALLOC() with PyMem_Malloc() (GH-23586)
No longer use deprecated aliases to functions:

* Replace PyMem_MALLOC() with PyMem_Malloc()
* Replace PyMem_REALLOC() with PyMem_Realloc()
* Replace PyMem_FREE() with PyMem_Free()
* Replace PyMem_Del() with PyMem_Free()
* Replace PyMem_DEL() with PyMem_Free()

Modify also the PyMem_DEL() macro to use directly PyMem_Free().
2020-12-01 09:56:42 +01:00
Victor Stinner 6223071421
bpo-1635741: Convert _imp to multi-phase init (GH-23378)
Convert the _imp extension module to the multi-phase initialization
API (PEP 489).

* Add _PyImport_BootstrapImp() which fix a bootstrap issue: import
  the _imp module before importlib is initialized.
* Add create_builtin() sub-function, used by _imp_create_builtin().
* Initialize PyInterpreterState.import_func earlier, in
  pycore_init_builtins().
* Remove references to _PyImport_Cleanup(). This function has been
  renamed to finalize_modules() and moved to pylifecycle.c.
2020-11-18 23:18:29 +01:00
Pablo Galindo 2a9eddf070
bpo-41625: Add a guard for Linux for splice() constants in the os module (GH-23350) 2020-11-17 11:57:49 -08:00