> On 29 Oct 2018, at 07:58, Ronald Oussoren via Pyobjc-dev > <pyobjc-...@lists.sourceforge.net> wrote: > > MAP_JIT is a mmap flag that’s apparently introduced in 10.14. The slides at > https://developer.apple.com/videos/play/wwdc2018/702/ > <https://developer.apple.com/videos/play/wwdc2018/702/> mention this flag and > the hardened runtime. > > I guess we should add this flag to the code in > Modules/_ctypes/malloc_closure.c CPython) and in the similar code in PyObjC. > The annoying bit is that the flag is new in 10.14, and CPython installers are > created on 10.9 which means those won’t include the new flag for a long time. > > I’ll have to check if using MAP_JIT is ok when deploying on older macOS > versions, or if the code should do a runtime version check.
I filed an issue with PyObjC to ensure I don’t forget to look into this: https://bitbucket.org/ronaldoussoren/pyobjc/issues/253/use-map_fixed-on-macos-1014 <https://bitbucket.org/ronaldoussoren/pyobjc/issues/253/use-map_fixed-on-macos-1014>. I’ll look into ctypes when I have a good solution for PyObjC. Ronald
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