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bpo-46176: mmap module adding MAP_STACK constant. (GH-30252)

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David CARLIER 2021-12-29 13:52:29 +00:00 committed by GitHub
parent 77195cd44b
commit 66c47b63a0
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3 changed files with 10 additions and 0 deletions
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4
Doc/library/mmap.rst
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@ -367,8 +367,12 @@ MAP_* Constants
MAP_ANON
MAP_ANONYMOUS
MAP_POPULATE
MAP_STACK
These are the various flags that can be passed to :meth:`mmap.mmap`. Note that some options might not be present on some systems.
.. versionchanged:: 3.10
Added MAP_POPULATE constant.
.. versionadded:: 3.11
Added MAP_STACK constant.

1
Misc/NEWS.d/next/Library/2021-12-25-11-11-21.bpo-46176.EOY9wd.rst Normal file
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@ -0,0 +1 @@
Adding the ``MAP_STACK`` constant for the mmap module.

5
Modules/mmapmodule.c
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@ -1637,6 +1637,11 @@ mmap_exec(PyObject *module)
#endif
#ifdef MAP_POPULATE
ADD_INT_MACRO(module, MAP_POPULATE);
#endif
#ifdef MAP_STACK
// 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
if (PyModule_AddIntConstant(module, "PAGESIZE", (long)my_getpagesize()) < 0 ) {
return -1;