summaryrefslogtreecommitdiffstats
path: root/Modules/faulthandler.c
Commit message (Collapse)AuthorAgeFilesLines
* [3.11] gh-110052: Fix faulthandler for freed tstate (#110069) (#110072)Victor Stinner2023-09-291-2/+1
| | | | | | | | | | gh-110052: Fix faulthandler for freed tstate (#110069) faulthandler now detected freed interp and freed tstate, and no longer dereference them. Backport to 3.11: add pycore_pymem.h include to traceback.c. (cherry picked from commit 2e37a38bcbfbe1357436e030538290e7d00b668d)
* [3.11] gh-107913: Fix possible losses of OSError error codes (GH-107930) ↵Serhiy Storchaka2023-08-271-2/+1
| | | | | | | | (GH-108524) Functions like PyErr_SetFromErrno() and SetFromWindowsErr() should be called immediately after using the C API which sets errno or the Windows error code. (cherry picked from commit 2b15536fa94d07e9e286826c23507402313ec7f4)
* gh-96055: Update faulthandler to emit proper unexpect signal number (gh-99162)Miss Islington (bot)2022-11-071-4/+16
| | | | | (cherry picked from commit f626b7b504df454d289527a4f922b09deeae9e21) Co-authored-by: Dong-hee Na <donghee.na@python.org>
* gh-96652: Fix faulthandler chained signal without sigaction() (GH-96666)Miss Islington (bot)2022-09-081-1/+1
| | | | | | | | Fix the faulthandler implementation of faulthandler.register(signal, chain=True) if the sigaction() function is not available: don't call the previous signal handler if it's NULL. (cherry picked from commit c580a81af91af4b9df85e466f8b48c3c9c86c3df) Co-authored-by: Victor Stinner <vstinner@python.org>
* gh-93937, C API: Move PyFrame_GetBack() to Python.h (#93938) (#94000)Victor Stinner2022-06-201-2/+0
| | | | | | | | | | | | | | | | | | Move the follow functions and type from frameobject.h to pyframe.h, so the standard <Python.h> provide frame getter functions: * PyFrame_Check() * PyFrame_GetBack() * PyFrame_GetBuiltins() * PyFrame_GetGenerator() * PyFrame_GetGlobals() * PyFrame_GetLasti() * PyFrame_GetLocals() * PyFrame_Type Remove #include "frameobject.h" from many C files. It's no longer needed. (cherry picked from commit 27b989403356ccdd47545a93aeab8434e9c69f21)
* gh-91320: Use _PyCFunction_CAST() (#92251)Victor Stinner2022-05-031-5/+5
| | | | | | | | | | Replace "(PyCFunction)(void(*)(void))func" cast with _PyCFunction_CAST(func). Change generated by the command: sed -i -e \ 's!(PyCFunction)(void(\*)(void)) *\([A-Za-z0-9_]\+\)!_PyCFunction_CAST(\1)!g' \ $(find -name "*.c")
* gh-64783: Fix signal.NSIG value on FreeBSD (#91929)Victor Stinner2022-04-251-17/+5
| | | | | | | | | 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.
* bpo-46968: Check for 'sys/auxv.h' in the configure script (GH-31961)Pablo Galindo Salgado2022-03-181-3/+3
|
* bpo-46968: Fix faulthandler for Sapphire Rapids Xeon (GH-31789)Oleksandr Pavlyk2022-03-111-6/+20
| | | | | | | | | | | In Linux kernel 5.14 one can dynamically request size of altstacksize based on hardware capabilities with getauxval(AT_MINSIGSTKSZ). This changes allows for Python extension's request to Linux kernel to use AMX_TILE instruction set on Sapphire Rapids Xeon processor to succeed, unblocking use of the ISA in frameworks. Introduced HAVE_LINUX_AUXVEC_H in configure.ac and pyconfig.h.in Used cpython_autoconf:269 docker container to generate configure.
* bpo-46913: Fix test_faulthandler.test_read_null() on UBSan (GH31672)Victor Stinner2022-03-031-16/+18
| | | | Disable undefined behavior sanitizer (UBSan) on faulthandler._read_null().
* bpo-46913: Fix test_faulthandler.test_sigfpe() on UBSAN (GH-31662)Victor Stinner2022-03-031-2/+20
| | | | Disable undefined behavior sanitizer (UBSAN) on faulthandler_sigfpe().
* bpo-46541: Replace core use of _Py_IDENTIFIER() with statically initialized ↵Eric Snow2022-02-081-9/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | 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
* bpo-46315: Add ifdef HAVE_ feature checks for WASI compatibility (GH-30507)Christian Heimes2022-01-131-1/+1
|
* bpo-45434: pyport.h no longer includes <stdlib.h> (GH-28914)Victor Stinner2021-10-131-2/+5
| | | | | Include <stdlib.h> explicitly in C files. Python.h includes <wchar.h>.
* bpo-41710: PyThread_acquire_lock_timed() clamps the timout (GH-28643)Victor Stinner2021-09-301-1/+1
| | | | | | | | | | | | | | | | | | | PyThread_acquire_lock_timed() now clamps the timeout into the [_PyTime_MIN; _PyTime_MAX] range (_PyTime_t type) if it is too large, rather than calling Py_FatalError() which aborts the process. PyThread_acquire_lock_timed() no longer uses MICROSECONDS_TO_TIMESPEC() to compute sem_timedwait() argument, but _PyTime_GetSystemClock() and _PyTime_AsTimespec_truncate(). Fix _thread.TIMEOUT_MAX value on Windows: the maximum timeout is 0x7FFFFFFF milliseconds (around 24.9 days), not 0xFFFFFFFF milliseconds (around 49.7 days). Set PY_TIMEOUT_MAX to 0x7FFFFFFF milliseconds, rather than 0xFFFFFFFF milliseconds. Fix PY_TIMEOUT_MAX overflow test: replace (us >= PY_TIMEOUT_MAX) with (us > PY_TIMEOUT_MAX).
* bpo-43268: Replace _PyThreadState_GET() with _PyInterpreterState_GET() ↵Victor Stinner2021-02-191-1/+2
| | | | | | | | | | | (GH-24576) Replace _PyThreadState_GET() with _PyInterpreterState_GET() in functions which only need the current interpreter, but don't need the current Python thread state. Replace also _PyThreadState_UncheckedGet() with _PyThreadState_GET() in faulthandler.c, since _PyThreadState_UncheckedGet() is just an alias to _PyThreadState_GET() in practice.
* bpo-42923: Dump extension modules on fatal error (GH-24207)Victor Stinner2021-01-181-0/+3
| | | | | | | The Py_FatalError() function and the faulthandler module now dump the list of extension modules on a fatal error. Add _Py_DumpExtensionModules() and _PyModule_IsExtension() internal functions.
* bpo-42923: Add Py_FatalError() test in test_capi (GH-24240)Victor Stinner2021-01-181-23/+2
| | | Move faulthandler._fatal_error() to _testcapi.fatal_error().
* bpo-1635741: Port faulthandler module to multiphase initialization (GH-21294)Dong-hee Na2020-07-031-35/+31
|
* bpo-40268: Remove explicit pythread.h includes (#19529)Victor Stinner2020-04-151-1/+0
| | | | Remove explicit pythread.h includes: it is always included by Python.h.
* Use calloc-based functions, not malloc. (GH-19152)Andy Lester2020-03-251-2/+1
|
* bpo-39947: Add PyThreadState_GetInterpreter() (GH-18981)Victor Stinner2020-03-131-3/+3
| | | | Add PyThreadState_GetInterpreter(tstate): get the interpreter of a Python thread state.
* bpo-38631: Add _Py_NO_RETURN to functions calling Py_FatalError() (GH-18278)Victor Stinner2020-01-301-15/+1
| | | | | | | | | Add _Py_NO_RETURN to functions calling Py_FatalError(): * _PyObject_AssertFailed() * dummy_dealloc() * faulthandler_fatal_error_thread() * none_dealloc() * notimplemented_dealloc()
* bpo-38965: Fix faulthandler._stack_overflow() on GCC 10 (GH-17467)Victor Stinner2019-12-041-10/+6
| | | | Use the "volatile" keyword to prevent tail call optimization on any compiler, rather than relying on compiler specific pragma.
* bpo-38823: Fix refleaks in faulthandler init error path on Windows (GH-17250)Brandt Bucher2019-11-191-10/+21
|
* bpo-38203: faulthandler.dump_traceback_later() is always available (GH-16249)Victor Stinner2019-09-181-17/+0
| | | | dump_traceback_later() and cancel_dump_traceback_later() functions of the faulthandler module are always available since Python 3.7.
* bpo-37933: Fix faulthandler.cancel_dump_traceback_later() (GH-15440)Thomas A Caswell2019-08-291-0/+5
| | | | Fix faulthandler.cancel_dump_traceback_later() call if cancel_dump_traceback_later() was not called previously.
* bpo-37851: faulthandler allocates its stack on demand (GH-15358)Victor Stinner2019-08-211-48/+98
| | | | | | | | | | | | | | | | | | The faulthandler module no longer allocates its alternative stack at Python startup. Now the stack is only allocated at the first faulthandler usage. faulthandler no longer ignores memory allocation failure when allocating the stack. sigaltstack() failure now raises an OSError exception, rather than being ignored. The alternative stack is no longer used if sigaction() is not available. In practice, sigaltstack() should only be available when sigaction() is avaialble, so this change should have no effect in practice. faulthandler.dump_traceback_later() internal locks are now only allocated at the first dump_traceback_later() call, rather than always being allocated at Python startup.
* bpo-21131: Fix faulthandler.register(chain=True) stack (GH-15276)Victor Stinner2019-08-141-1/+5
| | | | | | faulthandler now allocates a dedicated stack of SIGSTKSZ*2 bytes, instead of just SIGSTKSZ bytes. Calling the previous signal handler in faulthandler signal handler uses more than SIGSTKSZ bytes of stack memory on some platforms.
* bpo-37337: Add _PyObject_CallMethodNoArgs() (GH-14267)Jeroen Demeyer2019-07-081-3/+3
|
* bpo-36763: Implement the PEP 587 (GH-13592)Victor Stinner2019-05-271-5/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * Add a whole new documentation page: "Python Initialization Configuration" * PyWideStringList_Append() return type is now PyStatus, instead of int * PyInterpreterState_New() now calls PyConfig_Clear() if PyConfig_InitPythonConfig() fails. * Rename files: * Python/coreconfig.c => Python/initconfig.c * Include/cpython/coreconfig.h => Include/cpython/initconfig.h * Include/internal/: pycore_coreconfig.h => pycore_initconfig.h * Rename structures * _PyCoreConfig => PyConfig * _PyPreConfig => PyPreConfig * _PyInitError => PyStatus * _PyWstrList => PyWideStringList * Rename PyConfig fields: * use_module_search_paths => module_search_paths_set * module_search_path_env => pythonpath_env * Rename PyStatus field: _func => func * PyInterpreterState: rename core_config field to config * Rename macros and functions: * _PyCoreConfig_SetArgv() => PyConfig_SetBytesArgv() * _PyCoreConfig_SetWideArgv() => PyConfig_SetArgv() * _PyCoreConfig_DecodeLocale() => PyConfig_SetBytesString() * _PyInitError_Failed() => PyStatus_Exception() * _Py_INIT_ERROR_TYPE_xxx enums => _PyStatus_TYPE_xxx * _Py_UnixMain() => Py_BytesMain() * _Py_ExitInitError() => Py_ExitStatusException() * _Py_PreInitializeFromArgs() => Py_PreInitializeFromBytesArgs() * _Py_PreInitializeFromWideArgs() => Py_PreInitializeFromArgs() * _Py_PreInitialize() => Py_PreInitialize() * _Py_RunMain() => Py_RunMain() * _Py_InitializeFromConfig() => Py_InitializeFromConfig() * _Py_INIT_XXX() => _PyStatus_XXX() * _Py_INIT_FAILED() => _PyStatus_EXCEPTION() * Rename 'err' PyStatus variables to 'status' * Convert RUN_CODE() macro to config_run_code() static inline function * Remove functions: * _Py_InitializeFromArgs() * _Py_InitializeFromWideArgs() * _PyInterpreterState_GetCoreConfig()
* bpo-35134: Split traceback.h header (GH-13430)Victor Stinner2019-05-191-0/+1
| | | | Add new Include/cpython/traceback.h and Include/internal/traceback.h header files.
* bpo-36763: Add _PyInitError functions (GH-13395)Victor Stinner2019-05-171-0/+1
| | | | | | | | | | | | | | | * Add _PyInitError functions: * _PyInitError_Ok() * _PyInitError_Error() * _PyInitError_NoMemory() * _PyInitError_Exit() * _PyInitError_IsError() * _PyInitError_IsExit() * _PyInitError_Failed() * frozenmain.c and _testembed.c now use functions rather than macros. * Move _Py_INIT_xxx() macros to the internal API. * Move _PyWstrList_INIT macro to the internal API.
* bpo-36856: Handle possible overflow in faulthandler_stack_overflow (GH-13205)Xi Ruoyao2019-05-111-4/+17
|
* bpo-36734: Fix compilation of faulthandler.c on HP-UX (GH-12970)Victor Stinner2019-04-301-1/+2
| | | Initialize "stack_t current_stack" to zero using memset().
* bpo-33012: Fix invalid function cast warnings with gcc 8. (GH-6749)Serhiy Storchaka2018-11-271-5/+5
| | | | | | Fix invalid function cast warnings with gcc 8 for method conventions different from METH_NOARGS, METH_O and METH_VARARGS excluding Argument Clinic generated code.
* bpo-35214: Initial clang MemorySanitizer support (GH-10479)Gregory P. Smith2018-11-121-1/+1
| | | | | | | | | | Adds configure flags for msan and ubsan builds to make it easier to enable. These also encode the detail that address sanitizer and memory sanitizer should disable pymalloc. Define MEMORY_SANITIZER when appropriate at build time and adds workarounds to existing code to mark things as initialized where the sanitizer is otherwise unable to determine that. This lets our build succeed under the memory sanitizer. not all tests pass without sanitizer failures yet but we're in pretty good shape after this.
* bpo-33012: Fix invalid function cast warnings with gcc 8 for METH_NOARGS. ↵Siddhesh Poyarekar2018-04-291-8/+9
| | | | | | | | | (GH-6030) METH_NOARGS functions need only a single argument but they are cast into a PyCFunction, which takes two arguments. This triggers an invalid function cast warning in gcc8 due to the argument mismatch. Fix this by adding a dummy unused argument.
* bpo-32297: Few misspellings found in Python source code comments. (#4803)Mike2017-12-141-1/+1
| | | | | | | | * Fix multiple typos in code comments * Add spacing in comments (test_logging.py, test_math.py) * Fix spaces at the beginning of comments in test_logging.py
* bpo-32252: Fix faulthandler_suppress_crash_report() (#4794)Victor Stinner2017-12-111-1/+1
| | | | Fix faulthandler_suppress_crash_report() used to prevent core dump files when testing crashes. getrlimit() returns zero on success.
* bpo-32030: Enhance Py_Main() (#4412)Victor Stinner2017-11-161-34/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Parse more env vars in Py_Main(): * Add more options to _PyCoreConfig: * faulthandler * tracemalloc * importtime * Move code to parse environment variables from _Py_InitializeCore() to Py_Main(). This change fixes a regression from Python 3.6: PYTHONUNBUFFERED is now read before calling pymain_init_stdio(). * _PyFaulthandler_Init() and _PyTraceMalloc_Init() now take an argument to decide if the module has to be enabled at startup. * tracemalloc_start() is now responsible to check the maximum number of frames. Other changes: * Cleanup Py_Main(): * Rename some pymain_xxx() subfunctions * Add pymain_run_python() subfunction * Cleanup Py_NewInterpreter() * _PyInterpreterState_Enable() now reports failure * init_hash_secret() now considers pyurandom() failure as an "user error": don't fail with abort(). * pymain_optlist_append() and pymain_strdup() now sets err on memory allocation failure.
* bpo-32030: Split Py_Main() into subfunctions (#4399)Victor Stinner2017-11-151-32/+47
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * Don't use "Python runtime" anymore to parse command line options or to get environment variables: pymain_init() is now a strict separation. * Use an error message rather than "crashing" directly with Py_FatalError(). Limit the number of calls to Py_FatalError(). It prepares the code to handle errors more nicely later. * Warnings options (-W, PYTHONWARNINGS) and "XOptions" (-X) are now only added to the sys module once Python core is properly initialized. * _PyMain is now the well identified owner of some important strings like: warnings options, XOptions, and the "program name". The program name string is now properly freed at exit. pymain_free() is now responsible to free the "command" string. * Rename most methods in Modules/main.c to use a "pymain_" prefix to avoid conflits and ease debug. * Replace _Py_CommandLineDetails_INIT with memset(0) * Reorder a lot of code to fix the initialization ordering. For example, initializing standard streams now comes before parsing PYTHONWARNINGS. * Py_Main() now handles errors when adding warnings options and XOptions. * Add _PyMem_GetDefaultRawAllocator() private function. * Cleanup _PyMem_Initialize(): remove useless global constants: move them into _PyMem_Initialize(). * Call _PyRuntime_Initialize() as soon as possible: _PyRuntime_Initialize() now returns an error message on failure. * Add _PyInitError structure and following macros: * _Py_INIT_OK() * _Py_INIT_ERR(msg) * _Py_INIT_USER_ERR(msg): "user" error, don't abort() in that case * _Py_INIT_FAILED(err)
* Replace KB unit with KiB (#4293)Victor Stinner2017-11-081-2/+2
| | | | | | | | | | | kB (*kilo* byte) unit means 1000 bytes, whereas KiB ("kibibyte") means 1024 bytes. KB was misused: replace kB or KB with KiB when appropriate. Same change for MB and GB which become MiB and GiB. Change the output of Tools/iobench/iobench.py. Round also the size of the documentation from 5.5 MB to 5 MiB.
* faulthandler: use _PyTime_t rather than double for timeout (#4139)Victor Stinner2017-10-271-20/+31
| | | | | | | | | | | | | | | | | Use the _PyTime_t type rather than double for the faulthandler timeout in dump_traceback_later(). This change should fix the following Coverity warning: CID 1420311: Incorrect expression (UNINTENDED_INTEGER_DIVISION) Dividing integer expressions "9223372036854775807LL" and "1000LL", and then converting the integer quotient to type "double". Any remainder, or fractional part of the quotient, is ignored. if ((timeout * 1e6) >= (double) PY_TIMEOUT_MAX) { The warning comes from (double)PY_TIMEOUT_MAX with: #define PY_TIMEOUT_MAX (PY_LLONG_MAX / 1000)
* bpo-31701: faulthandler: ignore MSC and COM Windows exception (#3929)Victor Stinner2017-10-091-3/+19
| | | | | | bpo-31701: On Windows, faulthandler.enable() now ignores MSC and COM exceptions.
* bpo-25658: Implement PEP 539 for Thread Specific Storage (TSS) API (GH-1362)Masayuki Yamamoto2017-10-061-1/+1
| | | | | | | | | See PEP 539 for details. Highlights of changes: - Add Thread Specific Storage (TSS) API - Document the Thread Local Storage (TLS) API as deprecated - Update code that used TLS API to use TSS API
* bpo-31370: Remove support for threads-less builds (#3385)Antoine Pitrou2017-09-071-11/+1
| | | | | | * Remove Setup.config * Always define WITH_THREAD for compatibility.
* bpo-30557: faulthandler now correctly filters and displays exception codes ↵Steve Dower2017-06-051-4/+4
| | | | | | | | | | on Windows (#1924) * bpo-30557: faulthandler now correctly filters and displays exception codes on Windows * Adds test for non-fatal exceptions. * Adds bpo number to comment.
* bpo-30125: Fix faulthandler.disable() on Windows (#1240)Victor Stinner2017-04-211-24/+19
| | | | | | | | | | | | * bpo-30125: Cleanup faulthandler.c * Use size_t type for iterators * Add { ... } * bpo-30125: Fix faulthandler.disable() on Windows On Windows, faulthandler.disable() now removes the exception handler installed by faulthandler.enable().
* faulthandler: Restore the old sigaltstack during teardown (#777)Christophe Zeitouny2017-03-231-1/+16
|
generated by cgit v0.12 at 2024-12-11 07:19:04 (GMT)