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167 commits

Author SHA1 Message Date
Victor Stinner
e5014be049
bpo-40268: Remove a few pycore_pystate.h includes (GH-19510) 2020-04-14 17:52:15 +02:00
Victor Stinner
87d3b9db4a
bpo-39882: Add _Py_FatalErrorFormat() function (GH-19157) 2020-03-25 19:27:36 +01:00
Andy Lester
7386a70746
closes bpo-39630: Update pointers to string literals to be const char *. (GH-18510) 2020-02-13 20:42:56 -08:00
Victor Stinner
629023c05b
bpo-33387: Fix compiler warning in frame_block_unwind() (GH-18099) 
Replace int with intptr_t to fix the warning:

    objects\frameobject.c(341): warning C4244: 'initializing':
    conversion from '__int64' to 'int', possible loss of data
 2020-01-21 12:47:29 +01:00
Mark Shannon
fee552669f
Produce cleaner bytecode for 'with' and 'async with' by generating separate code for normal and exceptional paths. (#6641) 
Remove BEGIN_FINALLY, END_FINALLY, CALL_FINALLY and POP_FINALLY bytecodes. Implement finally blocks by code duplication.
Reimplement frame.lineno setter using line numbers rather than bytecode offsets.
 2019-11-21 09:11:43 +00:00
Victor Stinner
bed4817d52
Make PyXXX_Fini() functions private (GH-15531) 
For example, rename PyTuple_Fini() to _PyTuple_Fini().

These functions are only declared in the internal C API.
 2019-08-27 00:12:32 +02:00
Serhiy Storchaka
ef61c524dd
bpo-37830: Fix compilation of break and continue in finally. (GH-15320) 
Fix compilation of "break" and "continue" in the
"finally" block when the corresponding "try" block
contains "return" with a non-constant value.
 2019-08-24 13:11:52 +03:00
Jeroen Demeyer
530f506ac9 bpo-36974: tp_print -> tp_vectorcall_offset and tp_reserved -> tp_as_async (GH-13464) 
Automatically replace
tp_print -> tp_vectorcall_offset
tp_compare -> tp_as_async
tp_reserved -> tp_as_async
 2019-05-30 19:13:39 -07:00
Serhiy Storchaka
a24107b04c
bpo-35459: Use PyDict_GetItemWithError() instead of PyDict_GetItem(). (GH-11112) 2019-02-25 17:59:46 +02:00
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