Commit Graph

690 Commits

Author SHA1 Message Date
Victor Stinner 3bb183d7fb
bpo-35177, Python-ast.h: Fix "Yield" compiler warning (GH-10664)
Partially revert commit 5f2df88b63e50d23914e97ec778861a52abdeaad:
add "#undef Yield" to .c files after including Python-ast.h.

Fix the warning:

    winbase.h(102): warning C4005: 'Yield': macro redefinition
2018-11-22 18:38:38 +01:00
Victor Stinner 621cebe81b
bpo-35081: Rename internal headers (GH-10275)
Rename Include/internal/ headers:

* pycore_hash.h -> pycore_pyhash.h
* pycore_lifecycle.h -> pycore_pylifecycle.h
* pycore_mem.h -> pycore_pymem.h
* pycore_state.h -> pycore_pystate.h

Add missing headers to Makefile.pre.in and PCbuild:

* pycore_condvar.h.
* pycore_hamt.h
* pycore_pyhash.h
2018-11-12 16:53:38 +01:00
Victor Stinner 5f2df88b63
bpo-35177: Add dependencies between header files (GH-10361)
* ast.h now includes Python-ast.h and node.h
* parsetok.h now includes node.h and grammar.h
* symtable.h now includes Python-ast.h
* Modify asdl_c.py to enhance Python-ast.h:

  * Add #ifndef/#define Py_PYTHON_AST_H to be able to include the header
    twice
  * Add "extern { ... }" for C++
  * Undefine "Yield" macro conflicting with winbase.h

* Remove "#undef Yield" from C files, it's now done in Python-ast.h
* Remove now useless includes in C files
2018-11-12 00:56:19 +01:00
Serhiy Storchaka 34fd4c2019
bpo-35133: Fix mistakes when concatenate string literals on different lines. (GH-10284)
Two kind of mistakes:

1. Missed space. After concatenating there is no space between words.

2. Missed comma. Causes unintentional concatenating in a list of strings.
2018-11-05 16:20:25 +02:00
Victor Stinner a1c249c405
bpo-35081: And pycore_lifecycle.h and pycore_pathconfig.h (GH-10273)
* And pycore_lifecycle.h and pycore_pathconfig.h headers to
  Include/internal/
* Move Py_BUILD_CORE specific code from coreconfig.h and
  pylifecycle.h to pycore_pathconfig.h and pycore_lifecycle.h
* Move _Py_wstrlist_XXX() definitions and _PyPathConfig code
  from pycore_state.h to pycore_pathconfig.h
* Move "Init" and "Fini" function definitions from pylifecycle.c to
  pycore_lifecycle.h.
2018-11-01 03:15:58 +01:00
Victor Stinner 27e2d1f219
bpo-35081: Add pycore_ prefix to internal header files (GH-10263)
* Rename Include/internal/ header files:

  * pyatomic.h -> pycore_atomic.h
  * ceval.h -> pycore_ceval.h
  * condvar.h -> pycore_condvar.h
  * context.h -> pycore_context.h
  * pygetopt.h -> pycore_getopt.h
  * gil.h -> pycore_gil.h
  * hamt.h -> pycore_hamt.h
  * hash.h -> pycore_hash.h
  * mem.h -> pycore_mem.h
  * pystate.h -> pycore_state.h
  * warnings.h -> pycore_warnings.h

* PCbuild project, Makefile.pre.in, Modules/Setup: add the
  Include/internal/ directory to the search paths of header files.
* Update includes. For example, replace #include "internal/mem.h"
  with #include "pycore_mem.h".
2018-11-01 00:52:28 +01:00
Victor Stinner 2be00d987d
bpo-35081: Move Py_BUILD_CORE code to internal/mem.h (GH-10249)
* Add #include "internal/mem.h" to C files using
  _PyMem_SetDefaultAllocator().
* Include/internal/mem.h now requires Py_BUILD_CORE to be defined.
2018-10-31 20:19:24 +01:00
Serhiy Storchaka 3e429dcc24
bpo-33237: Improve AttributeError message for partially initialized module. (GH-6398) 2018-10-30 13:19:51 +02:00
Serhiy Storchaka c93c58b5d5
bpo-33331: Clean modules in the reversed order in PyImport_Cleanup(). (GH-6565)
Modules imported last are now cleared first at interpreter shutdown.

A newly imported module is moved to the end of sys.modules, behind
modules on which it depends.
2018-10-29 19:30:16 +02:00
Benjamin Peterson e502451781
closes bpo-34646: Remove PyAPI_* macros from declarations. (GH-9218) 2018-09-12 12:06:42 -07:00
Victor Stinner caba55b3b7
bpo-34301: Add _PyInterpreterState_Get() helper function (GH-8592)
sys_setcheckinterval() now uses a local variable to parse arguments,
before writing into interp->check_interval.
2018-08-03 15:33:52 +02:00
Victor Stinner 80b762f010
bpo-31650: Remove _Py_CheckHashBasedPycsMode global config var (GH-8608)
bpo-31650, bpo-34170: Replace _Py_CheckHashBasedPycsMode with
_PyCoreConfig._check_hash_pycs_mode. Modify PyInit__imp() and
zipimport to get the parameter from the current interpreter core
configuration.

Remove Include/internal/import.h file.
2018-08-01 18:18:07 +02:00
Victor Stinner 6c785c0ebd
bpo-34170: Add Python/coreconfig.c for _PyCoreConfig (GH-8607)
* Add Include/coreconfig.h
* Move config_*() and _PyCoreConfig_*() functions from Modules/main.c
  to a new Python/coreconfig.c file.
* Inline _Py_ReadHashSeed() into config_init_hash_seed()
* Move global configuration variables to coreconfig.c
2018-08-01 17:56:14 +02:00
ukwksk 5e6312c39e bpo-33443 Fix typo in Python/import.c (GH-6722) 2018-05-14 12:10:52 -07:00
Serhiy Storchaka c1a6832f50
bpo-33330: Write exceptions occurred in PyImport_Cleanup() to stderr. (GH-6606)
They where silenced before.
2018-04-29 22:16:30 +03:00
Serhiy Storchaka e9d9494d6b
bpo-33330: Improve error handling in PyImport_Cleanup(). (GH-6564) 2018-04-25 20:58:40 +03:00
Serhiy Storchaka 4e2442505c
bpo-32946: Speed up "from ... import ..." from non-packages. (GH-5873) 2018-03-11 10:52:37 +02:00
Benjamin Peterson c65ef772c3
rename _imp initialization function to follow conventions (#5432)
When the C imp module became _imp in 6f44d66bc4, the initialization function should have been renamed from PyInit_imp to PyInit__imp.
2018-01-29 11:33:57 -08:00
Benjamin Peterson 0c644fcda0
fix up signedness in PyImport_ExtendInittab (#4831)
As a result of 92a3c6f493, the compiler complains:

Python/import.c:2311:21: warning: comparison of integers of different signs: 'long' and 'unsigned long' [-Wsign-compare]
    if ((i + n + 1) <= PY_SSIZE_T_MAX / sizeof(struct _inittab)) {
         ~~~~~~~~~  ^  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

This overflow is extremely unlikely to happen, but let's avoid undefined
behavior anyway.
2017-12-15 23:42:33 -08:00
Victor Stinner d233796f7d
import.c: Fix a GCC warning (#4822)
Fix the warning:

Python/import.c: warning: comparison between signed and unsigned integer expressions
     if ((i + n + 1) <= PY_SSIZE_T_MAX / sizeof(struct _inittab)) {
2017-12-12 23:29:28 +01:00
Benjamin Peterson 83620773ee
fix my byte-swapping implementation (#4772) 2017-12-09 12:18:56 -08:00
Benjamin Peterson 42aa93b8ff
closes bpo-31650: PEP 552 (Deterministic pycs) implementation (#4575)
Python now supports checking bytecode cache up-to-dateness with a hash of the
source contents rather than volatile source metadata. See the PEP for details.

While a fairly straightforward idea, quite a lot of code had to be modified due
to the pervasiveness of pyc implementation details in the codebase. Changes in
this commit include:

- The core changes to importlib to understand how to read, validate, and
  regenerate hash-based pycs.

- Support for generating hash-based pycs in py_compile and compileall.

- Modifications to our siphash implementation to support passing a custom
  key. We then expose it to importlib through _imp.

- Updates to all places in the interpreter, standard library, and tests that
  manually generate or parse pyc files to grok the new format.

- Support in the interpreter command line code for long options like
  --check-hash-based-pycs.

- Tests and documentation for all of the above.
2017-12-09 10:26:52 -08:00
Neil Schemenauer 11cc289490
Fix missing DECREF of mod. (#4749) 2017-12-07 16:24:59 -08:00
Victor Stinner 92a3c6f493
bpo-32030: Add _PyImport_Fini2() (#4737)
PyImport_ExtendInittab() now uses PyMem_RawRealloc() rather than
PyMem_Realloc(). PyImport_ExtendInittab() can be called before
Py_Initialize() whereas only the PyMem_Raw allocator is supposed to
be used before Py_Initialize().

Add _PyImport_Fini2() to release the memory allocated by
PyImport_ExtendInittab() at exit. PyImport_ExtendInittab() now forces
the usage of the default raw allocator, to be able to release memory
in _PyImport_Fini2().

Don't export these functions anymore to be C API, only to
Py_BUILD_CORE:

* _PyExc_Fini()
* _PyImport_Fini()
* _PyGC_DumpShutdownStats()
* _PyGC_Fini()
* _PyType_Fini()
* _Py_HashRandomization_Fini()
2017-12-06 18:12:59 +01:00
Victor Stinner 672b6baa71
bpo-32030: pass interp to _PyImport_Init() (#4736)
Remove also the initstr variable, unused since the commit
e69f0df45b pushed in 2012: "bpo-13959:
Re-implement imp.find_module() in Lib/imp.py"
2017-12-06 17:25:50 +01:00
Neil Schemenauer eea3cc1ef0
Refactor PyImport_ImportModuleLevelObject(). (#4680)
Add import_find_and_load() helper function.  The addition of
the importtime option has made PyImport_ImportModuleLevelObject() large
and so using a helper seems worthwhile.  It also makes it clearer that
abs_name is the only argument needed by _find_and_load().
2017-12-03 09:26:03 -08:00
Victor Stinner 25420fe290
bpo-32030: Add more options to _PyCoreConfig (#4485)
Py_Main() now handles two more -X options:

* -X showrefcount: new _PyCoreConfig.show_ref_count field
* -X showalloccount: new _PyCoreConfig.show_alloc_count field
2017-11-20 18:12:22 -08:00
Victor Stinner a7368ac636
bpo-32030: Enhance Py_Main() (#4412)
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.
2017-11-15 18:11:45 -08:00
Victor Stinner f7e5b56c37
bpo-32030: Split Py_Main() into subfunctions (#4399)
* 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)
2017-11-15 15:48:08 -08:00
Serhiy Storchaka 088929cf62
bpo-31415: Improve error handling and caching of the importtime option. (#4138) 2017-11-07 08:55:38 +02:00
Barry Warsaw 700d2e4755
bpo-31415: Support PYTHONPROFILEIMPORTTIME envvar equivalent to -X importtime (#4240)
Support PYTHONPROFILEIMPORTTIME envvar equivalent to -X importtime
2017-11-02 16:13:36 -07:00
Victor Stinner bdaeb7d237 bpo-31773: _PyTime_GetPerfCounter() uses _PyTime_t (GH-3983)
* Rewrite win_perf_counter() to only use integers internally.
* Add _PyTime_MulDiv() which compute "ticks * mul / div"
  in two parts (int part and remaining) to prevent integer overflow.
* Clock frequency is checked at initialization for integer overflow.
* Enhance also pymonotonic() to reduce the precision loss on macOS
  (mach_absolute_time() clock).
2017-10-16 08:44:31 -07:00
Victor Stinner cba9a0c6de bpo-31773: time.perf_counter() uses again double (GH-3964)
time.clock() and time.perf_counter() now use again C double
internally.

Remove also _PyTime_GetWinPerfCounterWithInfo(): use
_PyTime_GetPerfCounterDoubleWithInfo() instead on Windows.
2017-10-12 08:51:56 -07:00
Victor Stinner a997c7b434 bpo-31415: Add _PyTime_GetPerfCounter() and use it for -X importtime (#3936)
* Add _PyTime_GetPerfCounter()
* Use _PyTime_GetPerfCounter() for -X importtime
2017-10-10 02:51:50 -07:00
INADA Naoki 1a87de7fcf bpo-31415: Add `-X importtime` option (GH-3490)
It shows show import time of each module.
It's useful for optimizing startup time.

Typical usage: python -X importtime -c 'import requests'
2017-10-03 19:46:34 +09:00
Christian Heimes 3d2b407da0 bpo-31574: importlib dtrace (#3749)
Importlib was instrumented with two dtrace probes to profile import timing.

Signed-off-by: Christian Heimes <christian@python.org>
2017-09-29 15:53:19 -07:00
Eric Snow 3f9eee6eb4 bpo-28411: Support other mappings in PyInterpreterState.modules. (#3593)
The concrete PyDict_* API is used to interact with PyInterpreterState.modules in a number of places. This isn't compatible with all dict subclasses, nor with other Mapping implementations. This patch switches the concrete API usage to the corresponding abstract API calls.

We also add a PyImport_GetModule() function (and some other helpers) to reduce a bunch of code duplication.
2017-09-15 16:35:20 -06:00
Eric Snow d393c1b227 bpo-28411: Isolate PyInterpreterState.modules (#3575)
A bunch of code currently uses PyInterpreterState.modules directly instead of PyImport_GetModuleDict(). This complicates efforts to make changes relative to sys.modules. This patch switches to using PyImport_GetModuleDict() uniformly. Also, a number of related uses of sys.modules are updated for uniformity for the same reason.

Note that this code was already reviewed and merged as part of #1638. I reverted that and am now splitting it up into more focused parts.
2017-09-14 12:18:12 -06:00
Eric Snow 93c92f7d1d bpo-31404: Revert "remove modules from Py_InterpreterState (#1638)" (#3565)
PR #1638, for bpo-28411, causes problems in some (very) edge cases. Until that gets sorted out, we're reverting the merge. PR #3506, a fix on top of #1638, is also getting reverted.
2017-09-13 23:46:04 -07:00
Eric Snow 2ebc5ce42a bpo-30860: Consolidate stateful runtime globals. (#3397)
* group the (stateful) runtime globals into various topical structs
* consolidate the topical structs under a single top-level _PyRuntimeState struct
* add a check-c-globals.py script that helps identify runtime globals

Other globals are excluded (see globals.txt and check-c-globals.py).
2017-09-07 23:51:28 -06:00
Antoine Pitrou a6a4dc816d bpo-31370: Remove support for threads-less builds (#3385)
* Remove Setup.config
* Always define WITH_THREAD for compatibility.
2017-09-07 18:56:24 +02:00
Eric Snow 86b7afdfee bpo-28411: Remove "modules" field from Py_InterpreterState. (#1638)
sys.modules is the one true source.
2017-09-04 17:54:09 -06:00
Serhiy Storchaka 8a9cd20edc bpo-30876: Relative import from unloaded package now reimports the package (#2639)
instead of failing with SystemError.

Relative import from non-package now fails with ImportError rather than
SystemError.
2017-07-12 06:50:03 +03:00
Victor Stinner 4f9a446f3f bpo-30891: Fix importlib _find_and_load() race condition (#2646)
* Rewrite importlib _get_module_lock(): it is now responsible to hold
  the imp lock directly.
* _find_and_load() now holds the module lock to check if name is in
  sys.modules to prevent a race condition
2017-07-10 22:52:32 +02:00
Serhiy Storchaka b4baacee1a bpo-30814: Fixed a race condition when import a submodule from a package. (#2580) 2017-07-06 08:09:03 +03:00
Serhiy Storchaka 145541cfa0 bpo-30626: Fix error handling in PyImport_Import(). (#2103)
In rare circumstances PyImport_Import() could return NULL without raising
an error.
2017-06-15 20:54:38 +03:00
Antoine Pitrou f7ecfac0c1 Doc nits for bpo-16500 (#1841)
* Doc nits for bpo-16500

* Fix more references
2017-05-28 11:35:14 +02:00
Serhiy Storchaka aefa7ebf0f bpo-6532: Make the thread id an unsigned integer. (#781)
* bpo-6532: Make the thread id an unsigned integer.

From C API side the type of results of PyThread_start_new_thread() and
PyThread_get_thread_ident(), the id parameter of
PyThreadState_SetAsyncExc(), and the thread_id field of PyThreadState
changed from "long" to "unsigned long".

* Restore a check in thread_get_ident().
2017-03-23 14:48:39 +01:00
Serhiy Storchaka 370fd202f1 Use Py_RETURN_FALSE/Py_RETURN_TRUE rather than PyBool_FromLong(0)/PyBool_FromLong(1). (#567) 2017-03-08 20:47:48 +02:00
Serhiy Storchaka 685c203e84 Removed redundant Argument Clinic directives. 2017-02-04 11:53:22 +02:00