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gh-81652 add MAP_ALIGNED_SUPER FreeBSD and MAP_CONCEAL OpenBSD constants #102191

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Merged
merged 3 commits into from
Feb 24, 2023
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gh-81652 add MAP_ALIGNED_SUPER FreeBSD and MAP_CONCEAL OpenBSD constants #102191

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dce8a14
add MAP_ALIGNED_SUPER FreeBSD and MAP_CONCEAL OpenBSD constants
yeojin-k9 Feb 23, 2023
02a8a04
Add NEWS.d
yeojin-k9 Feb 23, 2023
6dfbf4e
update descriptions
yeojin-k9 Feb 24, 2023
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14 changes: 11 additions & 3 deletions Doc/library/mmap.rst
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Expand Up @@ -370,11 +370,19 @@ MAP_* Constants
MAP_ANONYMOUS
MAP_POPULATE
MAP_STACK
MAP_ALIGNED_SUPER
MAP_CONCEAL

These are the various flags that can be passed to :meth:`mmap.mmap`. Note that some options might not be present on some systems.
These are the various flags that can be passed to :meth:`mmap.mmap`. :data:`MAP_ALIGNED_SUPER`
is only available at FreeBSD and :data:`MAP_CONCEAL` is only available at OpenBSD. Note
that some options might not be present on some systems.

.. versionchanged:: 3.10
Added MAP_POPULATE constant.
Added :data:`MAP_POPULATE` constant.

.. versionadded:: 3.11
Added MAP_STACK constant.
Added :data:`MAP_STACK` constant.

.. versionadded:: 3.12
Added :data:`MAP_ALIGNED_SUPER` constant.
Added :data:`MAP_CONCEAL` constant.
1 change: 1 addition & 0 deletions Misc/ACKS
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Expand Up @@ -930,6 +930,7 @@ Derek D. Kim
Gihwan Kim
Jan Kim
Taek Joo Kim
Yeojin Kim
Sam Kimbrel
Tomohiko Kinebuchi
James King
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2 changes: 2 additions & 0 deletions Misc/NEWS.d/next/Library/2023-02-23-20-39-52.gh-issue-81652.Vxz0Mr.rst
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@@ -0,0 +1,2 @@
Add :data:`mmap.MAP_ALIGNED_SUPER` FreeBSD and :data:`mmap.MAP_CONCEAL`
OpenBSD constants to :mod:`mmap`. Patch by Yeojin Kim.
6 changes: 6 additions & 0 deletions Modules/mmapmodule.c
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Expand Up @@ -1603,6 +1603,12 @@ mmap_exec(PyObject *module)
// Mostly a no-op on Linux and NetBSD, but useful on OpenBSD
// for stack usage (even on x86 arch)
ADD_INT_MACRO(module, MAP_STACK);
#endif
#ifdef MAP_ALIGNED_SUPER
ADD_INT_MACRO(module, MAP_ALIGNED_SUPER);
#endif
#ifdef MAP_CONCEAL
ADD_INT_MACRO(module, MAP_CONCEAL);
#endif
if (PyModule_AddIntConstant(module, "PAGESIZE", (long)my_getpagesize()) < 0 ) {
return -1;
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