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gh-101100: Fix Py_DEBUG dangling references by smontanaro · Pull Request #115003 · python/cpython · GitHub

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gh-101100: Fix Py_DEBUG dangling references #115003

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Merged
AlexWaygood merged 8 commits into from
Feb 7, 2024
Conversation 15 Commits 8 Checks 0 Files changed
Merged

gh-101100: Fix Py_DEBUG dangling references #115003

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5342ffc
clean up Doc/c-api/exceptions.rst
smontanaro Jan 31, 2024
d9a397a
suppress dangling Py_DEBUG refs (<debug-build> reference already in t…
smontanaro Feb 4, 2024
4b475f2
suppress dangling Py_DEBUG ref (<debug-build> reference already in th…
smontanaro Feb 4, 2024
0501578
Revert "clean up Doc/c-api/exceptions.rst"
AlexWaygood Feb 4, 2024
6661451
Merge remote-tracking branch 'upstream/main' into doc-fix-pydebug
AlexWaygood Feb 4, 2024
9333107
I think this is what the GitHub action was complaining about.
smontanaro Feb 4, 2024
bfba2a7
Explicitly call out Py_DEBUG macro. This produces both a target for o…
smontanaro Feb 6, 2024
f7ea5d8
reference the new Py_DEBUG target and reduce configure script arg dup…
smontanaro Feb 6, 2024
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11 changes: 6 additions & 5 deletions Doc/c-api/intro.rst
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Expand Up @@ -148,7 +148,7 @@ complete listing.
worse performances (due to increased code size for example). The compiler is
usually smarter than the developer for the cost/benefit analysis.

If Python is :ref:`built in debug mode <debug-build>` (if the ``Py_DEBUG``
If Python is :ref:`built in debug mode <debug-build>` (if the :c:macro:`Py_DEBUG`
macro is defined), the :c:macro:`Py_ALWAYS_INLINE` macro does nothing.

It must be specified before the function return type. Usage::
Expand Down Expand Up @@ -812,12 +812,14 @@ available that support tracing of reference counts, debugging the memory
allocator, or low-level profiling of the main interpreter loop. Only the most
frequently used builds will be described in the remainder of this section.

Compiling the interpreter with the :c:macro:`Py_DEBUG` macro defined produces
.. c:macro:: Py_DEBUG

Compiling the interpreter with the :c:macro:`!Py_DEBUG` macro defined produces
what is generally meant by :ref:`a debug build of Python <debug-build>`.
:c:macro:`Py_DEBUG` is enabled in the Unix build by adding
:c:macro:`!Py_DEBUG` is enabled in the Unix build by adding
:option:`--with-pydebug` to the :file:`./configure` command.
It is also implied by the presence of the
not-Python-specific :c:macro:`_DEBUG` macro. When :c:macro:`Py_DEBUG` is enabled
not-Python-specific :c:macro:`!_DEBUG` macro. When :c:macro:`!Py_DEBUG` is enabled
in the Unix build, compiler optimization is disabled.

In addition to the reference count debugging described below, extra checks are
Expand All @@ -832,4 +834,3 @@ after every statement run by the interpreter.)

Please refer to :file:`Misc/SpecialBuilds.txt` in the Python source distribution
for more detailed information.

6 changes: 3 additions & 3 deletions Doc/library/test.rst
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Expand Up @@ -324,9 +324,9 @@ The :mod:`test.support` module defines the following constants:

.. data:: Py_DEBUG

True if Python is built with the :c:macro:`Py_DEBUG` macro defined: if
Python is :ref:`built in debug mode <debug-build>`
(:option:`./configure --with-pydebug <--with-pydebug>`).
True if Python was built with the :c:macro:`Py_DEBUG` macro
defined, that is, if
Python was :ref:`built in debug mode <debug-build>`.

.. versionadded:: 3.12

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