Commit Graph

158 Commits

Author SHA1 Message Date
Zackery Spytz 842acaab13 bpo-35504: Fix segfaults and SystemErrors when deleting certain attrs. (GH-11175) 2018-12-17 16:52:45 +02:00
Serhiy Storchaka d4f9cf5545
bpo-33029: Fix signatures of getter and setter functions. (GH-10746)
Fix also return type for few other functions (clear, releasebuffer).
2018-11-27 19:34:35 +02:00
Victor Stinner bcda8f1d42
bpo-35081: Add Include/internal/pycore_object.h (GH-10640)
Move _PyObject_GC_TRACK() and _PyObject_GC_UNTRACK() from
Include/objimpl.h to Include/internal/pycore_object.h.
2018-11-21 22:27:47 +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 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
Siddhesh Poyarekar 55edd0c185 bpo-33012: Fix invalid function cast warnings with gcc 8 for METH_NOARGS. (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.
2018-04-29 21:59:33 +03:00
Victor Stinner 078c4e3519
bpo-33041: Fix downcast warning on Windows (#6595)
Cast pointer difference from ssize_t to int: a frame is very unlikely
larger than 2 GB.
2018-04-27 14:30:01 +02:00
Serhiy Storchaka 397466dfd9
bpo-30953: Improve error messages and add tests for jumping (GH-6196)
into/out of an except block.
2018-03-23 14:46:45 +02:00
Serhiy Storchaka 702f8f3611
bpo-33041: Rework compiling an "async for" loop. (#6142)
* Added new opcode END_ASYNC_FOR.
* Setting global StopAsyncIteration no longer breaks "async for" loops.
* Jumping into an "async for" loop is now disabled.
* Jumping out of an "async for" loop no longer corrupts the stack.
* Simplify the compiler.
2018-03-23 14:34:35 +02:00
xdegaye b8e9d6c5cd bpo-17288: Prevent jumps from 'return' and 'exception' trace events. (GH-6107)
(cherry picked from commit e32bbaf376)
2018-03-13 19:31:31 +02:00
Serhiy Storchaka 26c9f565d0
bpo-33026: Fix jumping out of "with" block by setting f_lineno. (#6026) 2018-03-11 08:32:47 +02:00
Thomas Nyberg 7023644e0c closes bpo-32980 Remove _PyFrame_Init (GH-5965) 2018-03-03 22:06:01 -08:00
Serhiy Storchaka 520b7ae27e
bpo-17611. Move unwinding of stack for "pseudo exceptions" from interpreter to compiler. (GH-5006)
Co-authored-by: Mark Shannon <mark@hotpy.org>
Co-authored-by: Antoine Pitrou <antoine@python.org>
2018-02-22 23:33:30 +02:00
Raymond Hettinger a4d0001256
bpo-32690: Preserve order of locals() (#5379) 2018-01-28 09:40:24 -08:00
Antoine Pitrou 14709144b5
bpo-32468: Better frame repr() (#5067)
bpo-32468: Better frame repr()
2017-12-31 22:35:22 +01:00
Mark Shannon ae3087c638 Move exc state to generator. Fixes bpo-25612 (#1773)
Move exception state information from frame objects to coroutine (generator/thread) object where it belongs.
2017-10-22 23:41:51 +02:00
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
Nick Coghlan 5a8516701f bpo-31344: Per-frame control of trace events (GH-3417)
f_trace_lines: enable/disable line trace events
f_trace_opcodes: enable/disable opcode trace events

These are intended primarily for testing of the interpreter
itself, as they make it much easier to emulate signals
arriving at unfortunate times.
2017-09-08 10:14:16 +10:00
INADA Naoki 5a625d0aa6 Issue #29049: Call _PyObject_GC_TRACK() lazily when calling Python function.
Calling function is up to 5% faster.
2016-12-24 20:19:08 +09:00
Victor Stinner c6944e7edc Issue #28618: Make hot functions using __attribute__((hot))
When Python is not compiled with PGO, the performance of Python on call_simple
and call_method microbenchmarks depend highly on the code placement. In the
worst case, the performance slowdown can be up to 70%.

The GCC __attribute__((hot)) attribute helps to keep hot code close to reduce
the risk of such major slowdown. This attribute is ignored when Python is
compiled with PGO.

The following functions are considered as hot according to statistics collected
by perf record/perf report:

* _PyEval_EvalFrameDefault()
* call_function()
* _PyFunction_FastCall()
* PyFrame_New()
* frame_dealloc()
* PyErr_Occurred()
2016-11-11 02:13:35 +01:00
Serhiy Storchaka ab8740058a Issue #27129: Replaced wordcode related magic constants with macros. 2016-09-11 13:48:15 +03:00
Serhiy Storchaka 64c26e5f60 Issue #20041: Fixed TypeError when frame.f_trace is set to None.
Patch by Xavier de Gaye.
2016-06-04 20:33:33 +03:00
Serhiy Storchaka 64a263a1ce Issue #20041: Fixed TypeError when frame.f_trace is set to None.
Patch by Xavier de Gaye.
2016-06-04 20:32:36 +03:00
Serhiy Storchaka b0f80b0312 Issue #26647: Python interpreter now uses 16-bit wordcode instead of bytecode.
Patch by Demur Rumed.
2016-05-24 09:15:14 +03:00
Serhiy Storchaka ec39756960 Issue #22570: Renamed Py_SETREF to Py_XSETREF. 2016-04-06 09:50:03 +03:00
Serhiy Storchaka 48842714b9 Issue #22570: Renamed Py_SETREF to Py_XSETREF. 2016-04-06 09:45:48 +03:00
Victor Stinner f3914eb16d co_lnotab supports negative line number delta
Issue #26107: The format of the co_lnotab attribute of code objects changes to
support negative line number delta.

Changes:

* assemble_lnotab(): if line number delta is less than -128 or greater than
  127, emit multiple (offset_delta, lineno_delta) in co_lnotab
* update functions decoding co_lnotab to use signed 8-bit integers

  - dis.findlinestarts()
  - PyCode_Addr2Line()
  - _PyCode_CheckLineNumber()
  - frame_setlineno()

* update lnotab_notes.txt
* increase importlib MAGIC_NUMBER to 3361
* document the change in What's New in Python 3.6
* cleanup also PyCode_Optimize() to use better variable names
2016-01-20 12:16:21 +01:00
Serhiy Storchaka 576f132b98 Issue #20440: Cleaning up the code by using Py_SETREF. 2016-01-05 21:27:54 +02:00
Serhiy Storchaka 5a57ade58e Issue #20440: Massive replacing unsafe attribute setting code with special
macro Py_SETREF.
2015-12-24 10:35:59 +02:00
Yury Selivanov 7544508f02 PEP 0492 -- Coroutines with async and await syntax. Issue #24017. 2015-05-11 22:57:16 -04:00
Antoine Pitrou acc8cf2cfa Issue #21897: Fix a crash with the f_locals attribute with closure variables when frame.clear() has been called. 2014-07-04 20:24:13 -04:00
Victor Stinner fdeb6ec45a Issue #14432: Remove the thread state field from the frame structure. Fix a
crash when a generator is created in a C thread that is destroyed while the
generator is still used. The issue was that a generator contains a frame, and
the frame kept a reference to the Python state of the destroyed C thread. The
crash occurs when a trace function is setup.
2013-12-13 02:01:38 +01:00
Victor Stinner 07e9e380f9 frameobject.c: Use an identifer instead of creating explicitly an interned
string for "__builtins__" literal string
2013-11-07 22:22:39 +01:00
Victor Stinner 41bb43a71e Issue #18408: Add a new PyFrame_FastToLocalsWithError() function to handle
exceptions when merging fast locals into f_locals of a frame.
PyEval_GetLocals() now raises an exception and return NULL on failure.
2013-10-29 01:19:37 +01:00
Antoine Pitrou 58720d6145 Issue #17934: Add a clear() method to frame objects, to help clean up expensive details (local variables) and break reference cycles. 2013-08-05 23:26:40 +02:00
Victor Stinner 640c35ce13 Reuse Py_MIN and Py_MAX macros: remove duplicate MIN/MAX macros
multiprocessing.h: remove unused MIN and MAX macros
2013-06-04 23:14:37 +02:00
Antoine Pitrou 9396356948 Backout c89febab4648 following private feedback by Guido.
(Issue #17807: Generators can now be finalized even when they are part of a reference cycle)
2013-05-14 20:37:52 +02:00
Antoine Pitrou 04e70d19e7 Issue #17807: Generators can now be finalized even when they are part of a reference cycle. 2013-05-08 18:12:35 +02:00
Victor Stinner 7a6d7cf3db Issue #9566: Use the right type to fix a compiler warnings on Win64 2012-10-31 00:37:41 +01:00
David Malcolm 49526f48fc Issue #14785: Add sys._debugmallocstats() to help debug low-level memory allocation issues 2012-06-22 14:55:41 -04:00
Kristjan Valur Jonsson 85634d7a2e Issue #14909: A number of places were using PyMem_Realloc() apis and
PyObject_GC_Resize() with incorrect error handling.  In case of errors,
the original object would be leaked.  This checkin fixes those cases.
2012-05-31 09:37:31 +00:00
Victor Stinner b0b224233e Issue #14385: Support other types than dict for __builtins__
It is now possible to use a custom type for the __builtins__ namespace, instead
of a dict. It can be used for sandboxing for example.  Raise also a NameError
instead of ImportError if __build_class__ name if not found in __builtins__.
2012-04-19 00:57:45 +02:00
Benjamin Peterson 6e3358a1d5 merge 3.2 (#14612) 2012-04-18 11:19:00 -04:00
Benjamin Peterson e42fb307ed SETUP_WITH acts like SETUP_FINALLY for the purposes of setting f_lineno (closes #14612) 2012-04-18 11:14:31 -04:00
Benjamin Peterson 2afe6aeae8 perform yield from delegation by repeating YIELD_FROM opcode (closes #14230)
This allows generators that are using yield from to be seen by debuggers. It
also kills the f_yieldfrom field on frame objects.

Patch mostly from Mark Shannon with a few tweaks by me.
2012-03-15 15:37:39 -05:00
Benjamin Peterson 400a968dfc remove f_yieldfrom access from Python (closes #13970) 2012-03-05 09:03:51 -06:00
Nick Coghlan 1f7ce62bd6 Implement PEP 380 - 'yield from' (closes #11682) 2012-01-13 21:43:40 +10:00
Mark Dickinson d19052c161 Issue #9089: Remove references to intobject.c and intobject.h from comments. 2010-06-27 18:19:09 +00:00
Antoine Pitrou f95a1b3c53 Recorded merge of revisions 81029 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk

........
  r81029 | antoine.pitrou | 2010-05-09 16:46:46 +0200 (dim., 09 mai 2010) | 3 lines

  Untabify C files. Will watch buildbots.
........
2010-05-09 15:52:27 +00:00
Alexandre Vassalotti 7b82b40a47 Merged revisions 72487-72488,72879 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk

........
  r72487 | jeffrey.yasskin | 2009-05-08 17:51:06 -0400 (Fri, 08 May 2009) | 7 lines

  PyCode_NewEmpty:
  Most uses of PyCode_New found by http://www.google.com/codesearch?q=PyCode_New
  are trying to build an empty code object, usually to put it in a dummy frame
  object. This patch adds a PyCode_NewEmpty wrapper which lets the user specify
  just the filename, function name, and first line number, instead of also
  requiring lots of code internals.
........
  r72488 | jeffrey.yasskin | 2009-05-08 18:23:21 -0400 (Fri, 08 May 2009) | 13 lines

  Issue 5954, PyFrame_GetLineNumber:
  Most uses of PyCode_Addr2Line
  (http://www.google.com/codesearch?q=PyCode_Addr2Line) are just trying to get
  the line number of a specified frame, but there's no way to do that directly.
  Forcing people to go through the code object makes them know more about the
  guts of the interpreter than they should need.

  The remaining uses of PyCode_Addr2Line seem to be getting the line from a
  traceback (for example,
  http://www.google.com/codesearch/p?hl=en#u_9_nDrchrw/pygame-1.7.1release/src/base.c&q=PyCode_Addr2Line),
  which is replaced by the tb_lineno field.  So we may be able to deprecate
  PyCode_Addr2Line entirely for external use.
........
  r72879 | jeffrey.yasskin | 2009-05-23 19:23:01 -0400 (Sat, 23 May 2009) | 14 lines

  Issue #6042:
  lnotab-based tracing is very complicated and isn't documented very well.  There
  were at least 3 comment blocks purporting to document co_lnotab, and none did a
  very good job. This patch unifies them into Objects/lnotab_notes.txt which
  tries to completely capture the current state of affairs.

  I also discovered that we've attached 2 layers of patches to the basic tracing
  scheme. The first layer avoids jumping to instructions that don't start a line,
  to avoid problems in if statements and while loops.  The second layer
  discovered that jumps backward do need to trace at instructions that don't
  start a line, so it added extra lnotab entries for 'while' and 'for' loops, and
  added a special case for backward jumps within the same line. I replaced these
  patches by just treating forward and backward jumps differently.
........
2009-07-21 04:30:03 +00:00